From 9052cff7c9db088a076f0adb53761541f2fa97e0 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 1 Jan 2007 04:42:50 +0000 Subject: reorder netfilter patches, update layer7 kernel to latest version, should improve stability SVN-Revision: 5950 --- .../patches/100-netfilter_layer7_2.1nbd.patch | 2065 ------- .../patches/100-netfilter_layer7_2.8.patch | 2053 +++++++ .../generic-2.6/patches/101-ipp2p_0.8.1rc1.patch | 948 ---- .../patches/101-netfilter_layer7_pktmatch.patch | 108 + .../102-openswan-2.4.0.kernel-2.6-natt.patch | 171 - .../generic-2.6/patches/103-netfilter-ipset.patch | 5851 -------------------- .../generic-2.6/patches/105-netfilter_time.patch | 241 - .../generic-2.6/patches/106-netfilter_imq.patch | 868 --- .../generic-2.6/patches/108-netfilter_route.patch | 902 --- .../generic-2.6/patches/110-ipp2p_0.8.1rc1.patch | 948 ++++ .../120-openswan-2.4.0.kernel-2.6-natt.patch | 171 + .../generic-2.6/patches/130-netfilter-ipset.patch | 5851 ++++++++++++++++++++ .../generic-2.6/patches/140-netfilter_time.patch | 241 + .../generic-2.6/patches/150-netfilter_imq.patch | 868 +++ .../generic-2.6/patches/160-netfilter_route.patch | 902 +++ 15 files changed, 11142 insertions(+), 11046 deletions(-) delete mode 100644 target/linux/generic-2.6/patches/100-netfilter_layer7_2.1nbd.patch create mode 100644 target/linux/generic-2.6/patches/100-netfilter_layer7_2.8.patch delete mode 100644 target/linux/generic-2.6/patches/101-ipp2p_0.8.1rc1.patch create mode 100644 target/linux/generic-2.6/patches/101-netfilter_layer7_pktmatch.patch delete mode 100644 target/linux/generic-2.6/patches/102-openswan-2.4.0.kernel-2.6-natt.patch delete mode 100644 target/linux/generic-2.6/patches/103-netfilter-ipset.patch delete mode 100644 target/linux/generic-2.6/patches/105-netfilter_time.patch delete mode 100644 target/linux/generic-2.6/patches/106-netfilter_imq.patch delete mode 100644 target/linux/generic-2.6/patches/108-netfilter_route.patch create mode 100644 target/linux/generic-2.6/patches/110-ipp2p_0.8.1rc1.patch create mode 100644 target/linux/generic-2.6/patches/120-openswan-2.4.0.kernel-2.6-natt.patch create mode 100644 target/linux/generic-2.6/patches/130-netfilter-ipset.patch create mode 100644 target/linux/generic-2.6/patches/140-netfilter_time.patch create mode 100644 target/linux/generic-2.6/patches/150-netfilter_imq.patch create mode 100644 target/linux/generic-2.6/patches/160-netfilter_route.patch (limited to 'target/linux/generic-2.6') diff --git a/target/linux/generic-2.6/patches/100-netfilter_layer7_2.1nbd.patch b/target/linux/generic-2.6/patches/100-netfilter_layer7_2.1nbd.patch deleted file mode 100644 index 62571c6bf8..0000000000 --- a/target/linux/generic-2.6/patches/100-netfilter_layer7_2.1nbd.patch +++ /dev/null @@ -1,2065 +0,0 @@ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_conntrack.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_conntrack.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_conntrack.h 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_conntrack.h 2006-12-14 03:13:37.000000000 +0100 -@@ -127,6 +127,15 @@ - /* Traversed often, so hopefully in different cacheline to top */ - /* These are my tuples; original and reply */ - struct ip_conntrack_tuple_hash tuplehash[IP_CT_DIR_MAX]; -+ -+#if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE) -+ struct { -+ char * app_proto; /* e.g. "http". NULL before decision. "unknown" after decision if no match */ -+ char * app_data; /* application layer data so far. NULL after match decision */ -+ unsigned int app_data_len; -+ } layer7; -+#endif -+ - }; - - struct ip_conntrack_expect -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_layer7.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_layer7.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_layer7.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_layer7.h 2006-12-14 03:13:37.000000000 +0100 -@@ -0,0 +1,27 @@ -+/* -+ By Matthew Strait , Dec 2003. -+ http://l7-filter.sf.net -+ -+ This program is free software; you can redistribute it and/or -+ modify it under the terms of the GNU General Public License -+ as published by the Free Software Foundation; either version -+ 2 of the License, or (at your option) any later version. -+ http://www.gnu.org/licenses/gpl.txt -+*/ -+ -+#ifndef _IPT_LAYER7_H -+#define _IPT_LAYER7_H -+ -+#define MAX_PATTERN_LEN 8192 -+#define MAX_PROTOCOL_LEN 256 -+ -+typedef char *(*proc_ipt_search) (char *, char, char *); -+ -+struct ipt_layer7_info { -+ char protocol[MAX_PROTOCOL_LEN]; -+ char invert:1; -+ char pattern[MAX_PATTERN_LEN]; -+ char pkt; -+}; -+ -+#endif /* _IPT_LAYER7_H */ -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_conntrack_core.c linux-2.6.19.dev/net/ipv4/netfilter/ip_conntrack_core.c ---- linux-2.6.19.old/net/ipv4/netfilter/ip_conntrack_core.c 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_conntrack_core.c 2006-12-14 03:13:37.000000000 +0100 -@@ -337,6 +337,13 @@ - * too. */ - ip_ct_remove_expectations(ct); - -+ #if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE) -+ if(ct->layer7.app_proto) -+ kfree(ct->layer7.app_proto); -+ if(ct->layer7.app_data) -+ kfree(ct->layer7.app_data); -+ #endif -+ - /* We overload first tuple to link into unconfirmed list. */ - if (!is_confirmed(ct)) { - BUG_ON(list_empty(&ct->tuplehash[IP_CT_DIR_ORIGINAL].list)); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_conntrack_standalone.c linux-2.6.19.dev/net/ipv4/netfilter/ip_conntrack_standalone.c ---- linux-2.6.19.old/net/ipv4/netfilter/ip_conntrack_standalone.c 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_conntrack_standalone.c 2006-12-14 03:13:37.000000000 +0100 -@@ -192,6 +192,12 @@ - return -ENOSPC; - #endif - -+#if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE) -+ if(conntrack->layer7.app_proto) -+ if (seq_printf(s, "l7proto=%s ",conntrack->layer7.app_proto)) -+ return 1; -+#endif -+ - if (seq_printf(s, "use=%u\n", atomic_read(&conntrack->ct_general.use))) - return -ENOSPC; - -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_layer7.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_layer7.c ---- linux-2.6.19.old/net/ipv4/netfilter/ipt_layer7.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_layer7.c 2006-12-14 03:13:37.000000000 +0100 -@@ -0,0 +1,586 @@ -+/* -+ Kernel module to match application layer (OSI layer 7) -+ data in connections. -+ -+ http://l7-filter.sf.net -+ -+ By Matthew Strait and Ethan Sommer, 2003-2005. -+ -+ This program is free software; you can redistribute it and/or -+ modify it under the terms of the GNU General Public License -+ as published by the Free Software Foundation; either version -+ 2 of the License, or (at your option) any later version. -+ http://www.gnu.org/licenses/gpl.txt -+ -+ Based on ipt_string.c (C) 2000 Emmanuel Roger -+ and cls_layer7.c (C) 2003 Matthew Strait, Ethan Sommer, Justin Levandoski -+*/ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include "regexp/regexp.c" -+ -+#include -+#include -+ -+MODULE_AUTHOR("Matthew Strait , Ethan Sommer "); -+MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION("iptables application layer match module"); -+MODULE_VERSION("2.0"); -+ -+static int maxdatalen = 2048; // this is the default -+module_param(maxdatalen, int, 0444); -+MODULE_PARM_DESC(maxdatalen, "maximum bytes of data looked at by l7-filter"); -+ -+#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG -+ #define DPRINTK(format,args...) printk(format,##args) -+#else -+ #define DPRINTK(format,args...) -+#endif -+ -+#define TOTAL_PACKETS master_conntrack->counters[IP_CT_DIR_ORIGINAL].packets + \ -+ master_conntrack->counters[IP_CT_DIR_REPLY].packets -+ -+/* Number of packets whose data we look at. -+This can be modified through /proc/net/layer7_numpackets */ -+static int num_packets = 10; -+ -+static struct pattern_cache { -+ char * regex_string; -+ regexp * pattern; -+ struct pattern_cache * next; -+} * first_pattern_cache = NULL; -+ -+/* I'm new to locking. Here are my assumptions: -+ -+- No one will write to /proc/net/layer7_numpackets over and over very fast; -+ if they did, nothing awful would happen. -+ -+- This code will never be processing the same packet twice at the same time, -+ because iptables rules are traversed in order. -+ -+- It doesn't matter if two packets from different connections are in here at -+ the same time, because they don't share any data. -+ -+- It _does_ matter if two packets from the same connection are here at the same -+ time. In this case, we have to protect the conntracks and the list of -+ compiled patterns. -+*/ -+DEFINE_RWLOCK(ct_lock); -+DEFINE_SPINLOCK(list_lock); -+ -+#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG -+/* Converts an unfriendly string into a friendly one by -+replacing unprintables with periods and all whitespace with " ". */ -+static char * friendly_print(unsigned char * s) -+{ -+ char * f = kmalloc(strlen(s) + 1, GFP_ATOMIC); -+ int i; -+ -+ if(!f) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in friendly_print, bailing.\n"); -+ return NULL; -+ } -+ -+ for(i = 0; i < strlen(s); i++){ -+ if(isprint(s[i]) && s[i] < 128) f[i] = s[i]; -+ else if(isspace(s[i])) f[i] = ' '; -+ else f[i] = '.'; -+ } -+ f[i] = '\0'; -+ return f; -+} -+ -+static char dec2hex(int i) -+{ -+ switch (i) { -+ case 0 ... 9: -+ return (char)(i + '0'); -+ break; -+ case 10 ... 15: -+ return (char)(i - 10 + 'a'); -+ break; -+ default: -+ if (net_ratelimit()) -+ printk("Problem in dec2hex\n"); -+ return '\0'; -+ } -+} -+ -+static char * hex_print(unsigned char * s) -+{ -+ char * g = kmalloc(strlen(s)*3 + 1, GFP_ATOMIC); -+ int i; -+ -+ if(!g) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in hex_print, bailing.\n"); -+ return NULL; -+ } -+ -+ for(i = 0; i < strlen(s); i++) { -+ g[i*3 ] = dec2hex(s[i]/16); -+ g[i*3 + 1] = dec2hex(s[i]%16); -+ g[i*3 + 2] = ' '; -+ } -+ g[i*3] = '\0'; -+ -+ return g; -+} -+#endif // DEBUG -+ -+/* Use instead of regcomp. As we expect to be seeing the same regexps over and -+over again, it make sense to cache the results. */ -+static regexp * compile_and_cache(char * regex_string, char * protocol) -+{ -+ struct pattern_cache * node = first_pattern_cache; -+ struct pattern_cache * last_pattern_cache = first_pattern_cache; -+ struct pattern_cache * tmp; -+ unsigned int len; -+ -+ while (node != NULL) { -+ if (!strcmp(node->regex_string, regex_string)) -+ return node->pattern; -+ -+ last_pattern_cache = node;/* points at the last non-NULL node */ -+ node = node->next; -+ } -+ -+ /* If we reach the end of the list, then we have not yet cached -+ the pattern for this regex. Let's do that now. -+ Be paranoid about running out of memory to avoid list corruption. */ -+ tmp = kmalloc(sizeof(struct pattern_cache), GFP_ATOMIC); -+ -+ if(!tmp) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in compile_and_cache, bailing.\n"); -+ return NULL; -+ } -+ -+ tmp->regex_string = kmalloc(strlen(regex_string) + 1, GFP_ATOMIC); -+ tmp->pattern = kmalloc(sizeof(struct regexp), GFP_ATOMIC); -+ tmp->next = NULL; -+ -+ if(!tmp->regex_string || !tmp->pattern) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in compile_and_cache, bailing.\n"); -+ kfree(tmp->regex_string); -+ kfree(tmp->pattern); -+ kfree(tmp); -+ return NULL; -+ } -+ -+ /* Ok. The new node is all ready now. */ -+ node = tmp; -+ -+ if(first_pattern_cache == NULL) /* list is empty */ -+ first_pattern_cache = node; /* make node the beginning */ -+ else -+ last_pattern_cache->next = node; /* attach node to the end */ -+ -+ /* copy the string and compile the regex */ -+ len = strlen(regex_string); -+ DPRINTK("About to compile this: \"%s\"\n", regex_string); -+ node->pattern = regcomp(regex_string, &len); -+ if ( !node->pattern ) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: Error compiling regexp \"%s\" (%s)\n", regex_string, protocol); -+ /* pattern is now cached as NULL, so we won't try again. */ -+ } -+ -+ strcpy(node->regex_string, regex_string); -+ return node->pattern; -+} -+ -+static int can_handle(const struct sk_buff *skb) -+{ -+ if(!skb->nh.iph) /* not IP */ -+ return 0; -+ if(skb->nh.iph->protocol != IPPROTO_TCP && -+ skb->nh.iph->protocol != IPPROTO_UDP && -+ skb->nh.iph->protocol != IPPROTO_ICMP) -+ return 0; -+ return 1; -+} -+ -+/* Returns offset the into the skb->data that the application data starts */ -+static int app_data_offset(const struct sk_buff *skb) -+{ -+ /* In case we are ported somewhere (ebtables?) where skb->nh.iph -+ isn't set, this can be gotten from 4*(skb->data[0] & 0x0f) as well. */ -+ int ip_hl = 4*skb->nh.iph->ihl; -+ -+ if( skb->nh.iph->protocol == IPPROTO_TCP ) { -+ /* 12 == offset into TCP header for the header length field. -+ Can't get this with skb->h.th->doff because the tcphdr -+ struct doesn't get set when routing (this is confirmed to be -+ true in Netfilter as well as QoS.) */ -+ int tcp_hl = 4*(skb->data[ip_hl + 12] >> 4); -+ -+ return ip_hl + tcp_hl; -+ } else if( skb->nh.iph->protocol == IPPROTO_UDP ) { -+ return ip_hl + 8; /* UDP header is always 8 bytes */ -+ } else if( skb->nh.iph->protocol == IPPROTO_ICMP ) { -+ return ip_hl + 8; /* ICMP header is 8 bytes */ -+ } else { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: tried to handle unknown protocol!\n"); -+ return ip_hl + 8; /* something reasonable */ -+ } -+} -+ -+/* handles whether there's a match when we aren't appending data anymore */ -+static int match_no_append(struct ip_conntrack * conntrack, struct ip_conntrack * master_conntrack, -+ enum ip_conntrack_info ctinfo, enum ip_conntrack_info master_ctinfo, -+ struct ipt_layer7_info * info) -+{ -+ /* If we're in here, throw the app data away */ -+ write_lock(&ct_lock); -+ if(master_conntrack->layer7.app_data != NULL) { -+ -+ #ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG -+ if(!master_conntrack->layer7.app_proto) { -+ char * f = friendly_print(master_conntrack->layer7.app_data); -+ char * g = hex_print(master_conntrack->layer7.app_data); -+ DPRINTK("\nl7-filter gave up after %d bytes (%llu packets):\n%s\n", -+ strlen(f), -+ TOTAL_PACKETS, f); -+ kfree(f); -+ DPRINTK("In hex: %s\n", g); -+ kfree(g); -+ } -+ #endif -+ -+ kfree(master_conntrack->layer7.app_data); -+ master_conntrack->layer7.app_data = NULL; /* don't free again */ -+ } -+ write_unlock(&ct_lock); -+ -+ if(master_conntrack->layer7.app_proto){ -+ /* Here child connections set their .app_proto (for /proc/net/ip_conntrack) */ -+ write_lock(&ct_lock); -+ if(!conntrack->layer7.app_proto) { -+ conntrack->layer7.app_proto = kmalloc(strlen(master_conntrack->layer7.app_proto)+1, GFP_ATOMIC); -+ if(!conntrack->layer7.app_proto){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in match_no_append, bailing.\n"); -+ write_unlock(&ct_lock); -+ return 1; -+ } -+ strcpy(conntrack->layer7.app_proto, master_conntrack->layer7.app_proto); -+ } -+ write_unlock(&ct_lock); -+ -+ return (!strcmp(master_conntrack->layer7.app_proto, info->protocol)); -+ } -+ else { -+ /* If not classified, set to "unknown" to distinguish from -+ connections that are still being tested. */ -+ write_lock(&ct_lock); -+ master_conntrack->layer7.app_proto = kmalloc(strlen("unknown")+1, GFP_ATOMIC); -+ if(!master_conntrack->layer7.app_proto){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in match_no_append, bailing.\n"); -+ write_unlock(&ct_lock); -+ return 1; -+ } -+ strcpy(master_conntrack->layer7.app_proto, "unknown"); -+ write_unlock(&ct_lock); -+ return 0; -+ } -+} -+ -+static int add_datastr(char *target, int offset, char *app_data, int len) -+{ -+ int length = 0, i; -+ -+ /* Strip nulls. Make everything lower case (our regex lib doesn't -+ do case insensitivity). Add it to the end of the current data. */ -+ for(i = 0; i < maxdatalen-offset-1 && i < len; i++) { -+ if(app_data[i] != '\0') { -+ target[length+offset] = -+ /* the kernel version of tolower mungs 'upper ascii' */ -+ isascii(app_data[i])? tolower(app_data[i]) : app_data[i]; -+ length++; -+ } -+ } -+ target[length+offset] = '\0'; -+ -+ return length; -+} -+ -+/* add the new app data to the conntrack. Return number of bytes added. */ -+static int add_data(struct ip_conntrack * master_conntrack, -+ char * app_data, int appdatalen) -+{ -+ int length; -+ -+ length = add_datastr(master_conntrack->layer7.app_data, master_conntrack->layer7.app_data_len, app_data, appdatalen); -+ master_conntrack->layer7.app_data_len += length; -+ -+ return length; -+} -+ -+/* Returns true on match and false otherwise. */ -+static int match(const struct sk_buff *skb_t, const struct net_device *in, -+ const struct net_device *out, const struct xt_match *match, -+ const void *matchinfo, int offset, -+ unsigned int protoff, int *hotdrop) -+{ -+ struct ipt_layer7_info * info = (struct ipt_layer7_info *)matchinfo; -+ enum ip_conntrack_info master_ctinfo, ctinfo; -+ struct ip_conntrack *master_conntrack, *conntrack; -+ unsigned char *app_data, *tmp_data; -+ unsigned int pattern_result, appdatalen; -+ regexp * comppattern; -+ struct sk_buff *skb = skb_t; /* to leave warning - FIXME */ -+ -+ if(!can_handle(skb)){ -+ DPRINTK("layer7: This is some protocol I can't handle.\n"); -+ return info->invert; -+ } -+ -+ /* Treat parent & all its children together as one connection, except -+ for the purpose of setting conntrack->layer7.app_proto in the actual -+ connection. This makes /proc/net/ip_conntrack more satisfying. */ -+ if(!(conntrack = ip_conntrack_get((struct sk_buff *)skb, &ctinfo)) || -+ !(master_conntrack = ip_conntrack_get((struct sk_buff *)skb, &master_ctinfo))) { -+ //DPRINTK("layer7: packet is not from a known connection, giving up.\n"); -+ return info->invert; -+ } -+ -+ /* Try to get a master conntrack (and its master etc) for FTP, etc. */ -+ while (master_ct(master_conntrack) != NULL) -+ master_conntrack = master_ct(master_conntrack); -+ -+ /* if we've classified it or seen too many packets */ -+ if(!info->pkt && (TOTAL_PACKETS > num_packets || -+ master_conntrack->layer7.app_proto)) { -+ -+ pattern_result = match_no_append(conntrack, master_conntrack, ctinfo, master_ctinfo, info); -+ -+ /* skb->cb[0] == seen. Avoid doing things twice if there are two l7 -+ rules. I'm not sure that using cb for this purpose is correct, although -+ it says "put your private variables there". But it doesn't look like it -+ is being used for anything else in the skbs that make it here. How can -+ I write to cb without making the compiler angry? */ -+ skb->cb[0] = 1; /* marking it seen here is probably irrelevant, but consistant */ -+ -+ return (pattern_result ^ info->invert); -+ } -+ -+ if(skb_is_nonlinear(skb)){ -+ if(skb_linearize(skb) != 0){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: failed to linearize packet, bailing.\n"); -+ return info->invert; -+ } -+ } -+ -+ /* now that the skb is linearized, it's safe to set these. */ -+ app_data = skb->data + app_data_offset(skb); -+ appdatalen = skb->tail - app_data; -+ -+ spin_lock_bh(&list_lock); -+ /* the return value gets checked later, when we're ready to use it */ -+ comppattern = compile_and_cache(info->pattern, info->protocol); -+ spin_unlock_bh(&list_lock); -+ -+ if (info->pkt) { -+ tmp_data = kmalloc(maxdatalen, GFP_ATOMIC); -+ if(!tmp_data){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in match, bailing.\n"); -+ return info->invert; -+ } -+ -+ tmp_data[0] = '\0'; -+ add_datastr(tmp_data, 0, app_data, appdatalen); -+ pattern_result = ((comppattern && regexec(comppattern, tmp_data)) ? 1 : 0); -+ kfree(tmp_data); -+ tmp_data = NULL; -+ -+ return (pattern_result ^ info->invert); -+ } -+ -+ /* On the first packet of a connection, allocate space for app data */ -+ write_lock(&ct_lock); -+ if(TOTAL_PACKETS == 1 && !skb->cb[0] && !master_conntrack->layer7.app_data) { -+ master_conntrack->layer7.app_data = kmalloc(maxdatalen, GFP_ATOMIC); -+ if(!master_conntrack->layer7.app_data){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in match, bailing.\n"); -+ write_unlock(&ct_lock); -+ return info->invert; -+ } -+ -+ master_conntrack->layer7.app_data[0] = '\0'; -+ } -+ write_unlock(&ct_lock); -+ -+ /* Can be here, but unallocated, if numpackets is increased near -+ the beginning of a connection */ -+ if(master_conntrack->layer7.app_data == NULL) -+ return (info->invert); /* unmatched */ -+ -+ if(!skb->cb[0]){ -+ int newbytes; -+ write_lock(&ct_lock); -+ newbytes = add_data(master_conntrack, app_data, appdatalen); -+ write_unlock(&ct_lock); -+ -+ if(newbytes == 0) { /* didn't add any data */ -+ skb->cb[0] = 1; -+ /* Didn't match before, not going to match now */ -+ return info->invert; -+ } -+ } -+ -+ /* If looking for "unknown", then never match. "Unknown" means that -+ we've given up; we're still trying with these packets. */ -+ if(!strcmp(info->protocol, "unknown")) { -+ pattern_result = 0; -+ /* If the regexp failed to compile, don't bother running it */ -+ } else if(comppattern && regexec(comppattern, master_conntrack->layer7.app_data)) { -+ DPRINTK("layer7: matched %s\n", info->protocol); -+ pattern_result = 1; -+ } else pattern_result = 0; -+ -+ if(pattern_result) { -+ write_lock(&ct_lock); -+ master_conntrack->layer7.app_proto = kmalloc(strlen(info->protocol)+1, GFP_ATOMIC); -+ if(!master_conntrack->layer7.app_proto){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in match, bailing.\n"); -+ write_unlock(&ct_lock); -+ return (pattern_result ^ info->invert); -+ } -+ strcpy(master_conntrack->layer7.app_proto, info->protocol); -+ write_unlock(&ct_lock); -+ } -+ -+ /* mark the packet seen */ -+ skb->cb[0] = 1; -+ -+ return (pattern_result ^ info->invert); -+} -+ -+static struct ipt_match layer7_match = { -+ .name = "layer7", -+ .match = &match, -+ .matchsize = sizeof(struct ipt_layer7_info), -+ .me = THIS_MODULE -+}; -+ -+/* taken from drivers/video/modedb.c */ -+static int my_atoi(const char *s) -+{ -+ int val = 0; -+ -+ for (;; s++) { -+ switch (*s) { -+ case '0'...'9': -+ val = 10*val+(*s-'0'); -+ break; -+ default: -+ return val; -+ } -+ } -+} -+ -+/* write out num_packets to userland. */ -+static int layer7_read_proc(char* page, char ** start, off_t off, int count, -+ int* eof, void * data) -+{ -+ if(num_packets > 99 && net_ratelimit()) -+ printk(KERN_ERR "layer7: NOT REACHED. num_packets too big\n"); -+ -+ page[0] = num_packets/10 + '0'; -+ page[1] = num_packets%10 + '0'; -+ page[2] = '\n'; -+ page[3] = '\0'; -+ -+ *eof=1; -+ -+ return 3; -+} -+ -+/* Read in num_packets from userland */ -+static int layer7_write_proc(struct file* file, const char* buffer, -+ unsigned long count, void *data) -+{ -+ char * foo = kmalloc(count, GFP_ATOMIC); -+ -+ if(!foo){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory, bailing. num_packets unchanged.\n"); -+ return count; -+ } -+ -+ if(copy_from_user(foo, buffer, count)) { -+ return -EFAULT; -+ } -+ -+ -+ num_packets = my_atoi(foo); -+ kfree (foo); -+ -+ /* This has an arbitrary limit to make the math easier. I'm lazy. -+ But anyway, 99 is a LOT! If you want more, you're doing it wrong! */ -+ if(num_packets > 99) { -+ printk(KERN_WARNING "layer7: num_packets can't be > 99.\n"); -+ num_packets = 99; -+ } else if(num_packets < 1) { -+ printk(KERN_WARNING "layer7: num_packets can't be < 1.\n"); -+ num_packets = 1; -+ } -+ -+ return count; -+} -+ -+/* register the proc file */ -+static void layer7_init_proc(void) -+{ -+ struct proc_dir_entry* entry; -+ entry = create_proc_entry("layer7_numpackets", 0644, proc_net); -+ entry->read_proc = layer7_read_proc; -+ entry->write_proc = layer7_write_proc; -+} -+ -+static void layer7_cleanup_proc(void) -+{ -+ remove_proc_entry("layer7_numpackets", proc_net); -+} -+ -+static int __init init(void) -+{ -+ layer7_init_proc(); -+ if(maxdatalen < 1) { -+ printk(KERN_WARNING "layer7: maxdatalen can't be < 1, using 1\n"); -+ maxdatalen = 1; -+ } -+ /* This is not a hard limit. It's just here to prevent people from -+ bringing their slow machines to a grinding halt. */ -+ else if(maxdatalen > 65536) { -+ printk(KERN_WARNING "layer7: maxdatalen can't be > 65536, using 65536\n"); -+ maxdatalen = 65536; -+ } -+ return ipt_register_match(&layer7_match); -+} -+ -+static void __exit fini(void) -+{ -+ layer7_cleanup_proc(); -+ ipt_unregister_match(&layer7_match); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig ---- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:37.000000000 +0100 -@@ -329,6 +329,24 @@ - destination IP' or `500pps from any given source IP' with a single - IPtables rule. - -+config IP_NF_MATCH_LAYER7 -+ tristate "Layer 7 match support (EXPERIMENTAL)" -+ depends on IP_NF_IPTABLES && IP_NF_CT_ACCT && IP_NF_CONNTRACK && EXPERIMENTAL -+ help -+ Say Y if you want to be able to classify connections (and their -+ packets) based on regular expression matching of their application -+ layer data. This is one way to classify applications such as -+ peer-to-peer filesharing systems that do not always use the same -+ port. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config IP_NF_MATCH_LAYER7_DEBUG -+ bool "Layer 7 debugging output" -+ depends on IP_NF_MATCH_LAYER7 -+ help -+ Say Y to get lots of debugging output. -+ - # `filter', generic and specific targets - config IP_NF_FILTER - tristate "Packet filtering" -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile ---- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:37.000000000 +0100 -@@ -63,6 +63,8 @@ - obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o - obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ipt_addrtype.o - -+obj-$(CONFIG_IP_NF_MATCH_LAYER7) += ipt_layer7.o -+ - # targets - obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o - obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o -diff -urN linux-2.6.19.old/net/ipv4/netfilter/regexp/regexp.c linux-2.6.19.dev/net/ipv4/netfilter/regexp/regexp.c ---- linux-2.6.19.old/net/ipv4/netfilter/regexp/regexp.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/regexp/regexp.c 2006-12-14 03:13:37.000000000 +0100 -@@ -0,0 +1,1195 @@ -+/* -+ * regcomp and regexec -- regsub and regerror are elsewhere -+ * @(#)regexp.c 1.3 of 18 April 87 -+ * -+ * Copyright (c) 1986 by University of Toronto. -+ * Written by Henry Spencer. Not derived from licensed software. -+ * -+ * Permission is granted to anyone to use this software for any -+ * purpose on any computer system, and to redistribute it freely, -+ * subject to the following restrictions: -+ * -+ * 1. The author is not responsible for the consequences of use of -+ * this software, no matter how awful, even if they arise -+ * from defects in it. -+ * -+ * 2. The origin of this software must not be misrepresented, either -+ * by explicit claim or by omission. -+ * -+ * 3. Altered versions must be plainly marked as such, and must not -+ * be misrepresented as being the original software. -+ * -+ * Beware that some of this code is subtly aware of the way operator -+ * precedence is structured in regular expressions. Serious changes in -+ * regular-expression syntax might require a total rethink. -+ * -+ * This code was modified by Ethan Sommer to work within the kernel -+ * (it now uses kmalloc etc..) -+ * -+ * Modified slightly by Matthew Strait to use more modern C. -+ */ -+ -+#include "regexp.h" -+#include "regmagic.h" -+ -+/* added by ethan and matt. Lets it work in both kernel and user space. -+(So iptables can use it, for instance.) Yea, it goes both ways... */ -+#if __KERNEL__ -+ #define malloc(foo) kmalloc(foo,GFP_ATOMIC) -+#else -+ #define printk(format,args...) printf(format,##args) -+#endif -+ -+void regerror(char * s) -+{ -+ printk("<3>Regexp: %s\n", s); -+ /* NOTREACHED */ -+} -+ -+/* -+ * The "internal use only" fields in regexp.h are present to pass info from -+ * compile to execute that permits the execute phase to run lots faster on -+ * simple cases. They are: -+ * -+ * regstart char that must begin a match; '\0' if none obvious -+ * reganch is the match anchored (at beginning-of-line only)? -+ * regmust string (pointer into program) that match must include, or NULL -+ * regmlen length of regmust string -+ * -+ * Regstart and reganch permit very fast decisions on suitable starting points -+ * for a match, cutting down the work a lot. Regmust permits fast rejection -+ * of lines that cannot possibly match. The regmust tests are costly enough -+ * that regcomp() supplies a regmust only if the r.e. contains something -+ * potentially expensive (at present, the only such thing detected is * or + -+ * at the start of the r.e., which can involve a lot of backup). Regmlen is -+ * supplied because the test in regexec() needs it and regcomp() is computing -+ * it anyway. -+ */ -+ -+/* -+ * Structure for regexp "program". This is essentially a linear encoding -+ * of a nondeterministic finite-state machine (aka syntax charts or -+ * "railroad normal form" in parsing technology). Each node is an opcode -+ * plus a "next" pointer, possibly plus an operand. "Next" pointers of -+ * all nodes except BRANCH implement concatenation; a "next" pointer with -+ * a BRANCH on both ends of it is connecting two alternatives. (Here we -+ * have one of the subtle syntax dependencies: an individual BRANCH (as -+ * opposed to a collection of them) is never concatenated with anything -+ * because of operator precedence.) The operand of some types of node is -+ * a literal string; for others, it is a node leading into a sub-FSM. In -+ * particular, the operand of a BRANCH node is the first node of the branch. -+ * (NB this is *not* a tree structure: the tail of the branch connects -+ * to the thing following the set of BRANCHes.) The opcodes are: -+ */ -+ -+/* definition number opnd? meaning */ -+#define END 0 /* no End of program. */ -+#define BOL 1 /* no Match "" at beginning of line. */ -+#define EOL 2 /* no Match "" at end of line. */ -+#define ANY 3 /* no Match any one character. */ -+#define ANYOF 4 /* str Match any character in this string. */ -+#define ANYBUT 5 /* str Match any character not in this string. */ -+#define BRANCH 6 /* node Match this alternative, or the next... */ -+#define BACK 7 /* no Match "", "next" ptr points backward. */ -+#define EXACTLY 8 /* str Match this string. */ -+#define NOTHING 9 /* no Match empty string. */ -+#define STAR 10 /* node Match this (simple) thing 0 or more times. */ -+#define PLUS 11 /* node Match this (simple) thing 1 or more times. */ -+#define OPEN 20 /* no Mark this point in input as start of #n. */ -+ /* OPEN+1 is number 1, etc. */ -+#define CLOSE 30 /* no Analogous to OPEN. */ -+ -+/* -+ * Opcode notes: -+ * -+ * BRANCH The set of branches constituting a single choice are hooked -+ * together with their "next" pointers, since precedence prevents -+ * anything being concatenated to any individual branch. The -+ * "next" pointer of the last BRANCH in a choice points to the -+ * thing following the whole choice. This is also where the -+ * final "next" pointer of each individual branch points; each -+ * branch starts with the operand node of a BRANCH node. -+ * -+ * BACK Normal "next" pointers all implicitly point forward; BACK -+ * exists to make loop structures possible. -+ * -+ * STAR,PLUS '?', and complex '*' and '+', are implemented as circular -+ * BRANCH structures using BACK. Simple cases (one character -+ * per match) are implemented with STAR and PLUS for speed -+ * and to minimize recursive plunges. -+ * -+ * OPEN,CLOSE ...are numbered at compile time. -+ */ -+ -+/* -+ * A node is one char of opcode followed by two chars of "next" pointer. -+ * "Next" pointers are stored as two 8-bit pieces, high order first. The -+ * value is a positive offset from the opcode of the node containing it. -+ * An operand, if any, simply follows the node. (Note that much of the -+ * code generation knows about this implicit relationship.) -+ * -+ * Using two bytes for the "next" pointer is vast overkill for most things, -+ * but allows patterns to get big without disasters. -+ */ -+#define OP(p) (*(p)) -+#define NEXT(p) (((*((p)+1)&0377)<<8) + (*((p)+2)&0377)) -+#define OPERAND(p) ((p) + 3) -+ -+/* -+ * See regmagic.h for one further detail of program structure. -+ */ -+ -+ -+/* -+ * Utility definitions. -+ */ -+#ifndef CHARBITS -+#define UCHARAT(p) ((int)*(unsigned char *)(p)) -+#else -+#define UCHARAT(p) ((int)*(p)&CHARBITS) -+#endif -+ -+#define FAIL(m) { regerror(m); return(NULL); } -+#define ISMULT(c) ((c) == '*' || (c) == '+' || (c) == '?') -+#define META "^$.[()|?+*\\" -+ -+/* -+ * Flags to be passed up and down. -+ */ -+#define HASWIDTH 01 /* Known never to match null string. */ -+#define SIMPLE 02 /* Simple enough to be STAR/PLUS operand. */ -+#define SPSTART 04 /* Starts with * or +. */ -+#define WORST 0 /* Worst case. */ -+ -+/* -+ * Global work variables for regcomp(). -+ */ -+static char *regparse; /* Input-scan pointer. */ -+static int regnpar; /* () count. */ -+static char regdummy; -+static char *regcode; /* Code-emit pointer; ®dummy = don't. */ -+static long regsize; /* Code size. */ -+ -+/* -+ * Forward declarations for regcomp()'s friends. -+ */ -+#ifndef STATIC -+#define STATIC static -+#endif -+STATIC char *reg(int paren,int *flagp); -+STATIC char *regbranch(int *flagp); -+STATIC char *regpiece(int *flagp); -+STATIC char *regatom(int *flagp); -+STATIC char *regnode(char op); -+STATIC char *regnext(char *p); -+STATIC void regc(char b); -+STATIC void reginsert(char op, char *opnd); -+STATIC void regtail(char *p, char *val); -+STATIC void regoptail(char *p, char *val); -+ -+ -+__kernel_size_t my_strcspn(const char *s1,const char *s2) -+{ -+ char *scan1; -+ char *scan2; -+ int count; -+ -+ count = 0; -+ for (scan1 = (char *)s1; *scan1 != '\0'; scan1++) { -+ for (scan2 = (char *)s2; *scan2 != '\0';) /* ++ moved down. */ -+ if (*scan1 == *scan2++) -+ return(count); -+ count++; -+ } -+ return(count); -+} -+ -+/* -+ - regcomp - compile a regular expression into internal code -+ * -+ * We can't allocate space until we know how big the compiled form will be, -+ * but we can't compile it (and thus know how big it is) until we've got a -+ * place to put the code. So we cheat: we compile it twice, once with code -+ * generation turned off and size counting turned on, and once "for real". -+ * This also means that we don't allocate space until we are sure that the -+ * thing really will compile successfully, and we never have to move the -+ * code and thus invalidate pointers into it. (Note that it has to be in -+ * one piece because free() must be able to free it all.) -+ * -+ * Beware that the optimization-preparation code in here knows about some -+ * of the structure of the compiled regexp. -+ */ -+regexp * -+regcomp(char *exp,int *patternsize) -+{ -+ register regexp *r; -+ register char *scan; -+ register char *longest; -+ register int len; -+ int flags; -+ /* commented out by ethan -+ extern char *malloc(); -+ */ -+ -+ if (exp == NULL) -+ FAIL("NULL argument"); -+ -+ /* First pass: determine size, legality. */ -+ regparse = exp; -+ regnpar = 1; -+ regsize = 0L; -+ regcode = ®dummy; -+ regc(MAGIC); -+ if (reg(0, &flags) == NULL) -+ return(NULL); -+ -+ /* Small enough for pointer-storage convention? */ -+ if (regsize >= 32767L) /* Probably could be 65535L. */ -+ FAIL("regexp too big"); -+ -+ /* Allocate space. */ -+ *patternsize=sizeof(regexp) + (unsigned)regsize; -+ r = (regexp *)malloc(sizeof(regexp) + (unsigned)regsize); -+ if (r == NULL) -+ FAIL("out of space"); -+ -+ /* Second pass: emit code. */ -+ regparse = exp; -+ regnpar = 1; -+ regcode = r->program; -+ regc(MAGIC); -+ if (reg(0, &flags) == NULL) -+ return(NULL); -+ -+ /* Dig out information for optimizations. */ -+ r->regstart = '\0'; /* Worst-case defaults. */ -+ r->reganch = 0; -+ r->regmust = NULL; -+ r->regmlen = 0; -+ scan = r->program+1; /* First BRANCH. */ -+ if (OP(regnext(scan)) == END) { /* Only one top-level choice. */ -+ scan = OPERAND(scan); -+ -+ /* Starting-point info. */ -+ if (OP(scan) == EXACTLY) -+ r->regstart = *OPERAND(scan); -+ else if (OP(scan) == BOL) -+ r->reganch++; -+ -+ /* -+ * If there's something expensive in the r.e., find the -+ * longest literal string that must appear and make it the -+ * regmust. Resolve ties in favor of later strings, since -+ * the regstart check works with the beginning of the r.e. -+ * and avoiding duplication strengthens checking. Not a -+ * strong reason, but sufficient in the absence of others. -+ */ -+ if (flags&SPSTART) { -+ longest = NULL; -+ len = 0; -+ for (; scan != NULL; scan = regnext(scan)) -+ if (OP(scan) == EXACTLY && strlen(OPERAND(scan)) >= len) { -+ longest = OPERAND(scan); -+ len = strlen(OPERAND(scan)); -+ } -+ r->regmust = longest; -+ r->regmlen = len; -+ } -+ } -+ -+ return(r); -+} -+ -+/* -+ - reg - regular expression, i.e. main body or parenthesized thing -+ * -+ * Caller must absorb opening parenthesis. -+ * -+ * Combining parenthesis handling with the base level of regular expression -+ * is a trifle forced, but the need to tie the tails of the branches to what -+ * follows makes it hard to avoid. -+ */ -+static char * -+reg(int paren, int *flagp /* Parenthesized? */ ) -+{ -+ register char *ret; -+ register char *br; -+ register char *ender; -+ register int parno = 0; /* 0 makes gcc happy */ -+ int flags; -+ -+ *flagp = HASWIDTH; /* Tentatively. */ -+ -+ /* Make an OPEN node, if parenthesized. */ -+ if (paren) { -+ if (regnpar >= NSUBEXP) -+ FAIL("too many ()"); -+ parno = regnpar; -+ regnpar++; -+ ret = regnode(OPEN+parno); -+ } else -+ ret = NULL; -+ -+ /* Pick up the branches, linking them together. */ -+ br = regbranch(&flags); -+ if (br == NULL) -+ return(NULL); -+ if (ret != NULL) -+ regtail(ret, br); /* OPEN -> first. */ -+ else -+ ret = br; -+ if (!(flags&HASWIDTH)) -+ *flagp &= ~HASWIDTH; -+ *flagp |= flags&SPSTART; -+ while (*regparse == '|') { -+ regparse++; -+ br = regbranch(&flags); -+ if (br == NULL) -+ return(NULL); -+ regtail(ret, br); /* BRANCH -> BRANCH. */ -+ if (!(flags&HASWIDTH)) -+ *flagp &= ~HASWIDTH; -+ *flagp |= flags&SPSTART; -+ } -+ -+ /* Make a closing node, and hook it on the end. */ -+ ender = regnode((paren) ? CLOSE+parno : END); -+ regtail(ret, ender); -+ -+ /* Hook the tails of the branches to the closing node. */ -+ for (br = ret; br != NULL; br = regnext(br)) -+ regoptail(br, ender); -+ -+ /* Check for proper termination. */ -+ if (paren && *regparse++ != ')') { -+ FAIL("unmatched ()"); -+ } else if (!paren && *regparse != '\0') { -+ if (*regparse == ')') { -+ FAIL("unmatched ()"); -+ } else -+ FAIL("junk on end"); /* "Can't happen". */ -+ /* NOTREACHED */ -+ } -+ -+ return(ret); -+} -+ -+/* -+ - regbranch - one alternative of an | operator -+ * -+ * Implements the concatenation operator. -+ */ -+static char * -+regbranch(int *flagp) -+{ -+ register char *ret; -+ register char *chain; -+ register char *latest; -+ int flags; -+ -+ *flagp = WORST; /* Tentatively. */ -+ -+ ret = regnode(BRANCH); -+ chain = NULL; -+ while (*regparse != '\0' && *regparse != '|' && *regparse != ')') { -+ latest = regpiece(&flags); -+ if (latest == NULL) -+ return(NULL); -+ *flagp |= flags&HASWIDTH; -+ if (chain == NULL) /* First piece. */ -+ *flagp |= flags&SPSTART; -+ else -+ regtail(chain, latest); -+ chain = latest; -+ } -+ if (chain == NULL) /* Loop ran zero times. */ -+ (void) regnode(NOTHING); -+ -+ return(ret); -+} -+ -+/* -+ - regpiece - something followed by possible [*+?] -+ * -+ * Note that the branching code sequences used for ? and the general cases -+ * of * and + are somewhat optimized: they use the same NOTHING node as -+ * both the endmarker for their branch list and the body of the last branch. -+ * It might seem that this node could be dispensed with entirely, but the -+ * endmarker role is not redundant. -+ */ -+static char * -+regpiece(int *flagp) -+{ -+ register char *ret; -+ register char op; -+ register char *next; -+ int flags; -+ -+ ret = regatom(&flags); -+ if (ret == NULL) -+ return(NULL); -+ -+ op = *regparse; -+ if (!ISMULT(op)) { -+ *flagp = flags; -+ return(ret); -+ } -+ -+ if (!(flags&HASWIDTH) && op != '?') -+ FAIL("*+ operand could be empty"); -+ *flagp = (op != '+') ? (WORST|SPSTART) : (WORST|HASWIDTH); -+ -+ if (op == '*' && (flags&SIMPLE)) -+ reginsert(STAR, ret); -+ else if (op == '*') { -+ /* Emit x* as (x&|), where & means "self". */ -+ reginsert(BRANCH, ret); /* Either x */ -+ regoptail(ret, regnode(BACK)); /* and loop */ -+ regoptail(ret, ret); /* back */ -+ regtail(ret, regnode(BRANCH)); /* or */ -+ regtail(ret, regnode(NOTHING)); /* null. */ -+ } else if (op == '+' && (flags&SIMPLE)) -+ reginsert(PLUS, ret); -+ else if (op == '+') { -+ /* Emit x+ as x(&|), where & means "self". */ -+ next = regnode(BRANCH); /* Either */ -+ regtail(ret, next); -+ regtail(regnode(BACK), ret); /* loop back */ -+ regtail(next, regnode(BRANCH)); /* or */ -+ regtail(ret, regnode(NOTHING)); /* null. */ -+ } else if (op == '?') { -+ /* Emit x? as (x|) */ -+ reginsert(BRANCH, ret); /* Either x */ -+ regtail(ret, regnode(BRANCH)); /* or */ -+ next = regnode(NOTHING); /* null. */ -+ regtail(ret, next); -+ regoptail(ret, next); -+ } -+ regparse++; -+ if (ISMULT(*regparse)) -+ FAIL("nested *?+"); -+ -+ return(ret); -+} -+ -+/* -+ - regatom - the lowest level -+ * -+ * Optimization: gobbles an entire sequence of ordinary characters so that -+ * it can turn them into a single node, which is smaller to store and -+ * faster to run. Backslashed characters are exceptions, each becoming a -+ * separate node; the code is simpler that way and it's not worth fixing. -+ */ -+static char * -+regatom(int *flagp) -+{ -+ register char *ret; -+ int flags; -+ -+ *flagp = WORST; /* Tentatively. */ -+ -+ switch (*regparse++) { -+ case '^': -+ ret = regnode(BOL); -+ break; -+ case '$': -+ ret = regnode(EOL); -+ break; -+ case '.': -+ ret = regnode(ANY); -+ *flagp |= HASWIDTH|SIMPLE; -+ break; -+ case '[': { -+ register int class; -+ register int classend; -+ -+ if (*regparse == '^') { /* Complement of range. */ -+ ret = regnode(ANYBUT); -+ regparse++; -+ } else -+ ret = regnode(ANYOF); -+ if (*regparse == ']' || *regparse == '-') -+ regc(*regparse++); -+ while (*regparse != '\0' && *regparse != ']') { -+ if (*regparse == '-') { -+ regparse++; -+ if (*regparse == ']' || *regparse == '\0') -+ regc('-'); -+ else { -+ class = UCHARAT(regparse-2)+1; -+ classend = UCHARAT(regparse); -+ if (class > classend+1) -+ FAIL("invalid [] range"); -+ for (; class <= classend; class++) -+ regc(class); -+ regparse++; -+ } -+ } else -+ regc(*regparse++); -+ } -+ regc('\0'); -+ if (*regparse != ']') -+ FAIL("unmatched []"); -+ regparse++; -+ *flagp |= HASWIDTH|SIMPLE; -+ } -+ break; -+ case '(': -+ ret = reg(1, &flags); -+ if (ret == NULL) -+ return(NULL); -+ *flagp |= flags&(HASWIDTH|SPSTART); -+ break; -+ case '\0': -+ case '|': -+ case ')': -+ FAIL("internal urp"); /* Supposed to be caught earlier. */ -+ break; -+ case '?': -+ case '+': -+ case '*': -+ FAIL("?+* follows nothing"); -+ break; -+ case '\\': -+ if (*regparse == '\0') -+ FAIL("trailing \\"); -+ ret = regnode(EXACTLY); -+ regc(*regparse++); -+ regc('\0'); -+ *flagp |= HASWIDTH|SIMPLE; -+ break; -+ default: { -+ register int len; -+ register char ender; -+ -+ regparse--; -+ len = my_strcspn((const char *)regparse, (const char *)META); -+ if (len <= 0) -+ FAIL("internal disaster"); -+ ender = *(regparse+len); -+ if (len > 1 && ISMULT(ender)) -+ len--; /* Back off clear of ?+* operand. */ -+ *flagp |= HASWIDTH; -+ if (len == 1) -+ *flagp |= SIMPLE; -+ ret = regnode(EXACTLY); -+ while (len > 0) { -+ regc(*regparse++); -+ len--; -+ } -+ regc('\0'); -+ } -+ break; -+ } -+ -+ return(ret); -+} -+ -+/* -+ - regnode - emit a node -+ */ -+static char * /* Location. */ -+regnode(char op) -+{ -+ register char *ret; -+ register char *ptr; -+ -+ ret = regcode; -+ if (ret == ®dummy) { -+ regsize += 3; -+ return(ret); -+ } -+ -+ ptr = ret; -+ *ptr++ = op; -+ *ptr++ = '\0'; /* Null "next" pointer. */ -+ *ptr++ = '\0'; -+ regcode = ptr; -+ -+ return(ret); -+} -+ -+/* -+ - regc - emit (if appropriate) a byte of code -+ */ -+static void -+regc(char b) -+{ -+ if (regcode != ®dummy) -+ *regcode++ = b; -+ else -+ regsize++; -+} -+ -+/* -+ - reginsert - insert an operator in front of already-emitted operand -+ * -+ * Means relocating the operand. -+ */ -+static void -+reginsert(char op, char* opnd) -+{ -+ register char *src; -+ register char *dst; -+ register char *place; -+ -+ if (regcode == ®dummy) { -+ regsize += 3; -+ return; -+ } -+ -+ src = regcode; -+ regcode += 3; -+ dst = regcode; -+ while (src > opnd) -+ *--dst = *--src; -+ -+ place = opnd; /* Op node, where operand used to be. */ -+ *place++ = op; -+ *place++ = '\0'; -+ *place++ = '\0'; -+} -+ -+/* -+ - regtail - set the next-pointer at the end of a node chain -+ */ -+static void -+regtail(char *p, char *val) -+{ -+ register char *scan; -+ register char *temp; -+ register int offset; -+ -+ if (p == ®dummy) -+ return; -+ -+ /* Find last node. */ -+ scan = p; -+ for (;;) { -+ temp = regnext(scan); -+ if (temp == NULL) -+ break; -+ scan = temp; -+ } -+ -+ if (OP(scan) == BACK) -+ offset = scan - val; -+ else -+ offset = val - scan; -+ *(scan+1) = (offset>>8)&0377; -+ *(scan+2) = offset&0377; -+} -+ -+/* -+ - regoptail - regtail on operand of first argument; nop if operandless -+ */ -+static void -+regoptail(char *p, char *val) -+{ -+ /* "Operandless" and "op != BRANCH" are synonymous in practice. */ -+ if (p == NULL || p == ®dummy || OP(p) != BRANCH) -+ return; -+ regtail(OPERAND(p), val); -+} -+ -+/* -+ * regexec and friends -+ */ -+ -+/* -+ * Global work variables for regexec(). -+ */ -+static char *reginput; /* String-input pointer. */ -+static char *regbol; /* Beginning of input, for ^ check. */ -+static char **regstartp; /* Pointer to startp array. */ -+static char **regendp; /* Ditto for endp. */ -+ -+/* -+ * Forwards. -+ */ -+STATIC int regtry(regexp *prog, char *string); -+STATIC int regmatch(char *prog); -+STATIC int regrepeat(char *p); -+ -+#ifdef DEBUG -+int regnarrate = 0; -+void regdump(); -+STATIC char *regprop(char *op); -+#endif -+ -+/* -+ - regexec - match a regexp against a string -+ */ -+int -+regexec(regexp *prog, char *string) -+{ -+ register char *s; -+ -+ /* Be paranoid... */ -+ if (prog == NULL || string == NULL) { -+ printk("<3>Regexp: NULL parameter\n"); -+ return(0); -+ } -+ -+ /* Check validity of program. */ -+ if (UCHARAT(prog->program) != MAGIC) { -+ printk("<3>Regexp: corrupted program\n"); -+ return(0); -+ } -+ -+ /* If there is a "must appear" string, look for it. */ -+ if (prog->regmust != NULL) { -+ s = string; -+ while ((s = strchr(s, prog->regmust[0])) != NULL) { -+ if (strncmp(s, prog->regmust, prog->regmlen) == 0) -+ break; /* Found it. */ -+ s++; -+ } -+ if (s == NULL) /* Not present. */ -+ return(0); -+ } -+ -+ /* Mark beginning of line for ^ . */ -+ regbol = string; -+ -+ /* Simplest case: anchored match need be tried only once. */ -+ if (prog->reganch) -+ return(regtry(prog, string)); -+ -+ /* Messy cases: unanchored match. */ -+ s = string; -+ if (prog->regstart != '\0') -+ /* We know what char it must start with. */ -+ while ((s = strchr(s, prog->regstart)) != NULL) { -+ if (regtry(prog, s)) -+ return(1); -+ s++; -+ } -+ else -+ /* We don't -- general case. */ -+ do { -+ if (regtry(prog, s)) -+ return(1); -+ } while (*s++ != '\0'); -+ -+ /* Failure. */ -+ return(0); -+} -+ -+/* -+ - regtry - try match at specific point -+ */ -+static int /* 0 failure, 1 success */ -+regtry(regexp *prog, char *string) -+{ -+ register int i; -+ register char **sp; -+ register char **ep; -+ -+ reginput = string; -+ regstartp = prog->startp; -+ regendp = prog->endp; -+ -+ sp = prog->startp; -+ ep = prog->endp; -+ for (i = NSUBEXP; i > 0; i--) { -+ *sp++ = NULL; -+ *ep++ = NULL; -+ } -+ if (regmatch(prog->program + 1)) { -+ prog->startp[0] = string; -+ prog->endp[0] = reginput; -+ return(1); -+ } else -+ return(0); -+} -+ -+/* -+ - regmatch - main matching routine -+ * -+ * Conceptually the strategy is simple: check to see whether the current -+ * node matches, call self recursively to see whether the rest matches, -+ * and then act accordingly. In practice we make some effort to avoid -+ * recursion, in particular by going through "ordinary" nodes (that don't -+ * need to know whether the rest of the match failed) by a loop instead of -+ * by recursion. -+ */ -+static int /* 0 failure, 1 success */ -+regmatch(char *prog) -+{ -+ register char *scan = prog; /* Current node. */ -+ char *next; /* Next node. */ -+ -+#ifdef DEBUG -+ if (scan != NULL && regnarrate) -+ fprintf(stderr, "%s(\n", regprop(scan)); -+#endif -+ while (scan != NULL) { -+#ifdef DEBUG -+ if (regnarrate) -+ fprintf(stderr, "%s...\n", regprop(scan)); -+#endif -+ next = regnext(scan); -+ -+ switch (OP(scan)) { -+ case BOL: -+ if (reginput != regbol) -+ return(0); -+ break; -+ case EOL: -+ if (*reginput != '\0') -+ return(0); -+ break; -+ case ANY: -+ if (*reginput == '\0') -+ return(0); -+ reginput++; -+ break; -+ case EXACTLY: { -+ register int len; -+ register char *opnd; -+ -+ opnd = OPERAND(scan); -+ /* Inline the first character, for speed. */ -+ if (*opnd != *reginput) -+ return(0); -+ len = strlen(opnd); -+ if (len > 1 && strncmp(opnd, reginput, len) != 0) -+ return(0); -+ reginput += len; -+ } -+ break; -+ case ANYOF: -+ if (*reginput == '\0' || strchr(OPERAND(scan), *reginput) == NULL) -+ return(0); -+ reginput++; -+ break; -+ case ANYBUT: -+ if (*reginput == '\0' || strchr(OPERAND(scan), *reginput) != NULL) -+ return(0); -+ reginput++; -+ break; -+ case NOTHING: -+ case BACK: -+ break; -+ case OPEN+1: -+ case OPEN+2: -+ case OPEN+3: -+ case OPEN+4: -+ case OPEN+5: -+ case OPEN+6: -+ case OPEN+7: -+ case OPEN+8: -+ case OPEN+9: { -+ register int no; -+ register char *save; -+ -+ no = OP(scan) - OPEN; -+ save = reginput; -+ -+ if (regmatch(next)) { -+ /* -+ * Don't set startp if some later -+ * invocation of the same parentheses -+ * already has. -+ */ -+ if (regstartp[no] == NULL) -+ regstartp[no] = save; -+ return(1); -+ } else -+ return(0); -+ } -+ break; -+ case CLOSE+1: -+ case CLOSE+2: -+ case CLOSE+3: -+ case CLOSE+4: -+ case CLOSE+5: -+ case CLOSE+6: -+ case CLOSE+7: -+ case CLOSE+8: -+ case CLOSE+9: -+ { -+ register int no; -+ register char *save; -+ -+ no = OP(scan) - CLOSE; -+ save = reginput; -+ -+ if (regmatch(next)) { -+ /* -+ * Don't set endp if some later -+ * invocation of the same parentheses -+ * already has. -+ */ -+ if (regendp[no] == NULL) -+ regendp[no] = save; -+ return(1); -+ } else -+ return(0); -+ } -+ break; -+ case BRANCH: { -+ register char *save; -+ -+ if (OP(next) != BRANCH) /* No choice. */ -+ next = OPERAND(scan); /* Avoid recursion. */ -+ else { -+ do { -+ save = reginput; -+ if (regmatch(OPERAND(scan))) -+ return(1); -+ reginput = save; -+ scan = regnext(scan); -+ } while (scan != NULL && OP(scan) == BRANCH); -+ return(0); -+ /* NOTREACHED */ -+ } -+ } -+ break; -+ case STAR: -+ case PLUS: { -+ register char nextch; -+ register int no; -+ register char *save; -+ register int min; -+ -+ /* -+ * Lookahead to avoid useless match attempts -+ * when we know what character comes next. -+ */ -+ nextch = '\0'; -+ if (OP(next) == EXACTLY) -+ nextch = *OPERAND(next); -+ min = (OP(scan) == STAR) ? 0 : 1; -+ save = reginput; -+ no = regrepeat(OPERAND(scan)); -+ while (no >= min) { -+ /* If it could work, try it. */ -+ if (nextch == '\0' || *reginput == nextch) -+ if (regmatch(next)) -+ return(1); -+ /* Couldn't or didn't -- back up. */ -+ no--; -+ reginput = save + no; -+ } -+ return(0); -+ } -+ break; -+ case END: -+ return(1); /* Success! */ -+ break; -+ default: -+ printk("<3>Regexp: memory corruption\n"); -+ return(0); -+ break; -+ } -+ -+ scan = next; -+ } -+ -+ /* -+ * We get here only if there's trouble -- normally "case END" is -+ * the terminating point. -+ */ -+ printk("<3>Regexp: corrupted pointers\n"); -+ return(0); -+} -+ -+/* -+ - regrepeat - repeatedly match something simple, report how many -+ */ -+static int -+regrepeat(char *p) -+{ -+ register int count = 0; -+ register char *scan; -+ register char *opnd; -+ -+ scan = reginput; -+ opnd = OPERAND(p); -+ switch (OP(p)) { -+ case ANY: -+ count = strlen(scan); -+ scan += count; -+ break; -+ case EXACTLY: -+ while (*opnd == *scan) { -+ count++; -+ scan++; -+ } -+ break; -+ case ANYOF: -+ while (*scan != '\0' && strchr(opnd, *scan) != NULL) { -+ count++; -+ scan++; -+ } -+ break; -+ case ANYBUT: -+ while (*scan != '\0' && strchr(opnd, *scan) == NULL) { -+ count++; -+ scan++; -+ } -+ break; -+ default: /* Oh dear. Called inappropriately. */ -+ printk("<3>Regexp: internal foulup\n"); -+ count = 0; /* Best compromise. */ -+ break; -+ } -+ reginput = scan; -+ -+ return(count); -+} -+ -+/* -+ - regnext - dig the "next" pointer out of a node -+ */ -+static char* -+regnext(char *p) -+{ -+ register int offset; -+ -+ if (p == ®dummy) -+ return(NULL); -+ -+ offset = NEXT(p); -+ if (offset == 0) -+ return(NULL); -+ -+ if (OP(p) == BACK) -+ return(p-offset); -+ else -+ return(p+offset); -+} -+ -+#ifdef DEBUG -+ -+STATIC char *regprop(); -+ -+/* -+ - regdump - dump a regexp onto stdout in vaguely comprehensible form -+ */ -+void -+regdump(regexp *r) -+{ -+ register char *s; -+ register char op = EXACTLY; /* Arbitrary non-END op. */ -+ register char *next; -+ /* extern char *strchr(); */ -+ -+ -+ s = r->program + 1; -+ while (op != END) { /* While that wasn't END last time... */ -+ op = OP(s); -+ printf("%2d%s", s-r->program, regprop(s)); /* Where, what. */ -+ next = regnext(s); -+ if (next == NULL) /* Next ptr. */ -+ printf("(0)"); -+ else -+ printf("(%d)", (s-r->program)+(next-s)); -+ s += 3; -+ if (op == ANYOF || op == ANYBUT || op == EXACTLY) { -+ /* Literal string, where present. */ -+ while (*s != '\0') { -+ putchar(*s); -+ s++; -+ } -+ s++; -+ } -+ putchar('\n'); -+ } -+ -+ /* Header fields of interest. */ -+ if (r->regstart != '\0') -+ printf("start `%c' ", r->regstart); -+ if (r->reganch) -+ printf("anchored "); -+ if (r->regmust != NULL) -+ printf("must have \"%s\"", r->regmust); -+ printf("\n"); -+} -+ -+/* -+ - regprop - printable representation of opcode -+ */ -+static char * -+regprop(char *op) -+{ -+#define BUFLEN 50 -+ register char *p; -+ static char buf[BUFLEN]; -+ -+ strcpy(buf, ":"); -+ -+ switch (OP(op)) { -+ case BOL: -+ p = "BOL"; -+ break; -+ case EOL: -+ p = "EOL"; -+ break; -+ case ANY: -+ p = "ANY"; -+ break; -+ case ANYOF: -+ p = "ANYOF"; -+ break; -+ case ANYBUT: -+ p = "ANYBUT"; -+ break; -+ case BRANCH: -+ p = "BRANCH"; -+ break; -+ case EXACTLY: -+ p = "EXACTLY"; -+ break; -+ case NOTHING: -+ p = "NOTHING"; -+ break; -+ case BACK: -+ p = "BACK"; -+ break; -+ case END: -+ p = "END"; -+ break; -+ case OPEN+1: -+ case OPEN+2: -+ case OPEN+3: -+ case OPEN+4: -+ case OPEN+5: -+ case OPEN+6: -+ case OPEN+7: -+ case OPEN+8: -+ case OPEN+9: -+ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "OPEN%d", OP(op)-OPEN); -+ p = NULL; -+ break; -+ case CLOSE+1: -+ case CLOSE+2: -+ case CLOSE+3: -+ case CLOSE+4: -+ case CLOSE+5: -+ case CLOSE+6: -+ case CLOSE+7: -+ case CLOSE+8: -+ case CLOSE+9: -+ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "CLOSE%d", OP(op)-CLOSE); -+ p = NULL; -+ break; -+ case STAR: -+ p = "STAR"; -+ break; -+ case PLUS: -+ p = "PLUS"; -+ break; -+ default: -+ printk("<3>Regexp: corrupted opcode\n"); -+ break; -+ } -+ if (p != NULL) -+ strncat(buf, p, BUFLEN-strlen(buf)); -+ return(buf); -+} -+#endif -+ -+ -diff -urN linux-2.6.19.old/net/ipv4/netfilter/regexp/regexp.h linux-2.6.19.dev/net/ipv4/netfilter/regexp/regexp.h ---- linux-2.6.19.old/net/ipv4/netfilter/regexp/regexp.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/regexp/regexp.h 2006-12-14 03:13:37.000000000 +0100 -@@ -0,0 +1,41 @@ -+/* -+ * Definitions etc. for regexp(3) routines. -+ * -+ * Caveat: this is V8 regexp(3) [actually, a reimplementation thereof], -+ * not the System V one. -+ */ -+ -+#ifndef REGEXP_H -+#define REGEXP_H -+ -+ -+/* -+http://www.opensource.apple.com/darwinsource/10.3/expect-1/expect/expect.h , -+which contains a version of this library, says: -+ -+ * -+ * NSUBEXP must be at least 10, and no greater than 117 or the parser -+ * will not work properly. -+ * -+ -+However, it looks rather like this library is limited to 10. If you think -+otherwise, let us know. -+*/ -+ -+#define NSUBEXP 10 -+typedef struct regexp { -+ char *startp[NSUBEXP]; -+ char *endp[NSUBEXP]; -+ char regstart; /* Internal use only. */ -+ char reganch; /* Internal use only. */ -+ char *regmust; /* Internal use only. */ -+ int regmlen; /* Internal use only. */ -+ char program[1]; /* Unwarranted chumminess with compiler. */ -+} regexp; -+ -+regexp * regcomp(char *exp, int *patternsize); -+int regexec(regexp *prog, char *string); -+void regsub(regexp *prog, char *source, char *dest); -+void regerror(char *s); -+ -+#endif -diff -urN linux-2.6.19.old/net/ipv4/netfilter/regexp/regmagic.h linux-2.6.19.dev/net/ipv4/netfilter/regexp/regmagic.h ---- linux-2.6.19.old/net/ipv4/netfilter/regexp/regmagic.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/regexp/regmagic.h 2006-12-14 03:13:37.000000000 +0100 -@@ -0,0 +1,5 @@ -+/* -+ * The first byte of the regexp internal "program" is actually this magic -+ * number; the start node begins in the second byte. -+ */ -+#define MAGIC 0234 -diff -urN linux-2.6.19.old/net/ipv4/netfilter/regexp/regsub.c linux-2.6.19.dev/net/ipv4/netfilter/regexp/regsub.c ---- linux-2.6.19.old/net/ipv4/netfilter/regexp/regsub.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/regexp/regsub.c 2006-12-14 03:13:37.000000000 +0100 -@@ -0,0 +1,95 @@ -+/* -+ * regsub -+ * @(#)regsub.c 1.3 of 2 April 86 -+ * -+ * Copyright (c) 1986 by University of Toronto. -+ * Written by Henry Spencer. Not derived from licensed software. -+ * -+ * Permission is granted to anyone to use this software for any -+ * purpose on any computer system, and to redistribute it freely, -+ * subject to the following restrictions: -+ * -+ * 1. The author is not responsible for the consequences of use of -+ * this software, no matter how awful, even if they arise -+ * from defects in it. -+ * -+ * 2. The origin of this software must not be misrepresented, either -+ * by explicit claim or by omission. -+ * -+ * 3. Altered versions must be plainly marked as such, and must not -+ * be misrepresented as being the original software. -+ * -+ * -+ * This code was modified by Ethan Sommer to work within the kernel -+ * (it now uses kmalloc etc..) -+ * -+ */ -+#include "regexp.h" -+#include "regmagic.h" -+#include -+ -+ -+#ifndef CHARBITS -+#define UCHARAT(p) ((int)*(unsigned char *)(p)) -+#else -+#define UCHARAT(p) ((int)*(p)&CHARBITS) -+#endif -+ -+#if 0 -+//void regerror(char * s) -+//{ -+// printk("regexp(3): %s", s); -+// /* NOTREACHED */ -+//} -+#endif -+ -+/* -+ - regsub - perform substitutions after a regexp match -+ */ -+void -+regsub(regexp * prog, char * source, char * dest) -+{ -+ register char *src; -+ register char *dst; -+ register char c; -+ register int no; -+ register int len; -+ -+ /* Not necessary and gcc doesn't like it -MLS */ -+ /*extern char *strncpy();*/ -+ -+ if (prog == NULL || source == NULL || dest == NULL) { -+ regerror("NULL parm to regsub"); -+ return; -+ } -+ if (UCHARAT(prog->program) != MAGIC) { -+ regerror("damaged regexp fed to regsub"); -+ return; -+ } -+ -+ src = source; -+ dst = dest; -+ while ((c = *src++) != '\0') { -+ if (c == '&') -+ no = 0; -+ else if (c == '\\' && '0' <= *src && *src <= '9') -+ no = *src++ - '0'; -+ else -+ no = -1; -+ -+ if (no < 0) { /* Ordinary character. */ -+ if (c == '\\' && (*src == '\\' || *src == '&')) -+ c = *src++; -+ *dst++ = c; -+ } else if (prog->startp[no] != NULL && prog->endp[no] != NULL) { -+ len = prog->endp[no] - prog->startp[no]; -+ (void) strncpy(dst, prog->startp[no], len); -+ dst += len; -+ if (len != 0 && *(dst-1) == '\0') { /* strncpy hit NUL. */ -+ regerror("damaged match string"); -+ return; -+ } -+ } -+ } -+ *dst++ = '\0'; -+} diff --git a/target/linux/generic-2.6/patches/100-netfilter_layer7_2.8.patch b/target/linux/generic-2.6/patches/100-netfilter_layer7_2.8.patch new file mode 100644 index 0000000000..876423cac7 --- /dev/null +++ b/target/linux/generic-2.6/patches/100-netfilter_layer7_2.8.patch @@ -0,0 +1,2053 @@ +diff -urN linux.old/include/linux/netfilter_ipv4/ip_conntrack.h linux.dev/include/linux/netfilter_ipv4/ip_conntrack.h +--- linux.old/include/linux/netfilter_ipv4/ip_conntrack.h 2007-01-01 05:17:07.000000000 +0100 ++++ linux.dev/include/linux/netfilter_ipv4/ip_conntrack.h 2007-01-01 05:18:48.000000000 +0100 +@@ -127,6 +127,15 @@ + /* Traversed often, so hopefully in different cacheline to top */ + /* These are my tuples; original and reply */ + struct ip_conntrack_tuple_hash tuplehash[IP_CT_DIR_MAX]; ++ ++#if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE) ++ struct { ++ char * app_proto; /* e.g. "http". NULL before decision. "unknown" after decision if no match */ ++ char * app_data; /* application layer data so far. NULL after match decision */ ++ unsigned int app_data_len; ++ } layer7; ++#endif ++ + }; + + struct ip_conntrack_expect +diff -urN linux.old/include/linux/netfilter_ipv4/ipt_layer7.h linux.dev/include/linux/netfilter_ipv4/ipt_layer7.h +--- linux.old/include/linux/netfilter_ipv4/ipt_layer7.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/include/linux/netfilter_ipv4/ipt_layer7.h 2007-01-01 05:18:48.000000000 +0100 +@@ -0,0 +1,26 @@ ++/* ++ By Matthew Strait , Dec 2003. ++ http://l7-filter.sf.net ++ ++ This program is free software; you can redistribute it and/or ++ modify it under the terms of the GNU General Public License ++ as published by the Free Software Foundation; either version ++ 2 of the License, or (at your option) any later version. ++ http://www.gnu.org/licenses/gpl.txt ++*/ ++ ++#ifndef _IPT_LAYER7_H ++#define _IPT_LAYER7_H ++ ++#define MAX_PATTERN_LEN 8192 ++#define MAX_PROTOCOL_LEN 256 ++ ++typedef char *(*proc_ipt_search) (char *, char, char *); ++ ++struct ipt_layer7_info { ++ char protocol[MAX_PROTOCOL_LEN]; ++ char invert:1; ++ char pattern[MAX_PATTERN_LEN]; ++}; ++ ++#endif /* _IPT_LAYER7_H */ +diff -urN linux.old/net/ipv4/netfilter/ip_conntrack_core.c linux.dev/net/ipv4/netfilter/ip_conntrack_core.c +--- linux.old/net/ipv4/netfilter/ip_conntrack_core.c 2007-01-01 05:17:07.000000000 +0100 ++++ linux.dev/net/ipv4/netfilter/ip_conntrack_core.c 2007-01-01 05:18:48.000000000 +0100 +@@ -337,6 +337,13 @@ + * too. */ + ip_ct_remove_expectations(ct); + ++ #if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE) ++ if(ct->layer7.app_proto) ++ kfree(ct->layer7.app_proto); ++ if(ct->layer7.app_data) ++ kfree(ct->layer7.app_data); ++ #endif ++ + /* We overload first tuple to link into unconfirmed list. */ + if (!is_confirmed(ct)) { + BUG_ON(list_empty(&ct->tuplehash[IP_CT_DIR_ORIGINAL].list)); +diff -urN linux.old/net/ipv4/netfilter/ip_conntrack_standalone.c linux.dev/net/ipv4/netfilter/ip_conntrack_standalone.c +--- linux.old/net/ipv4/netfilter/ip_conntrack_standalone.c 2007-01-01 05:17:07.000000000 +0100 ++++ linux.dev/net/ipv4/netfilter/ip_conntrack_standalone.c 2007-01-01 05:18:48.000000000 +0100 +@@ -192,6 +192,12 @@ + return -ENOSPC; + #endif + ++#if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE) ++ if(conntrack->layer7.app_proto) ++ if (seq_printf(s, "l7proto=%s ",conntrack->layer7.app_proto)) ++ return 1; ++#endif ++ + if (seq_printf(s, "use=%u\n", atomic_read(&conntrack->ct_general.use))) + return -ENOSPC; + +diff -urN linux.old/net/ipv4/netfilter/ipt_layer7.c linux.dev/net/ipv4/netfilter/ipt_layer7.c +--- linux.old/net/ipv4/netfilter/ipt_layer7.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/net/ipv4/netfilter/ipt_layer7.c 2007-01-01 05:18:48.000000000 +0100 +@@ -0,0 +1,573 @@ ++/* ++ Kernel module to match application layer (OSI layer 7) data in connections. ++ ++ http://l7-filter.sf.net ++ ++ By Matthew Strait and Ethan Sommer, 2003-2006. ++ ++ This program is free software; you can redistribute it and/or ++ modify it under the terms of the GNU General Public License ++ as published by the Free Software Foundation; either version ++ 2 of the License, or (at your option) any later version. ++ http://www.gnu.org/licenses/gpl.txt ++ ++ Based on ipt_string.c (C) 2000 Emmanuel Roger ++ and cls_layer7.c (C) 2003 Matthew Strait, Ethan Sommer, Justin Levandoski ++*/ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "regexp/regexp.c" ++ ++#include ++#include ++ ++MODULE_AUTHOR("Matthew Strait , Ethan Sommer "); ++MODULE_LICENSE("GPL"); ++MODULE_DESCRIPTION("iptables application layer match module"); ++MODULE_VERSION("2.0"); ++ ++static int maxdatalen = 2048; // this is the default ++module_param(maxdatalen, int, 0444); ++MODULE_PARM_DESC(maxdatalen, "maximum bytes of data looked at by l7-filter"); ++ ++#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG ++ #define DPRINTK(format,args...) printk(format,##args) ++#else ++ #define DPRINTK(format,args...) ++#endif ++ ++#define TOTAL_PACKETS master_conntrack->counters[IP_CT_DIR_ORIGINAL].packets + \ ++ master_conntrack->counters[IP_CT_DIR_REPLY].packets ++ ++/* Number of packets whose data we look at. ++This can be modified through /proc/net/layer7_numpackets */ ++static int num_packets = 10; ++ ++static struct pattern_cache { ++ char * regex_string; ++ regexp * pattern; ++ struct pattern_cache * next; ++} * first_pattern_cache = NULL; ++ ++/* I'm new to locking. Here are my assumptions: ++ ++- No one will write to /proc/net/layer7_numpackets over and over very fast; ++ if they did, nothing awful would happen. ++ ++- This code will never be processing the same packet twice at the same time, ++ because iptables rules are traversed in order. ++ ++- It doesn't matter if two packets from different connections are in here at ++ the same time, because they don't share any data. ++ ++- It _does_ matter if two packets from the same connection (or one from a ++ master and one from its child) are here at the same time. In this case, ++ we have to protect the conntracks and the list of compiled patterns. ++*/ ++DEFINE_RWLOCK(ct_lock); ++DEFINE_SPINLOCK(list_lock); ++ ++#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG ++/* Converts an unfriendly string into a friendly one by ++replacing unprintables with periods and all whitespace with " ". */ ++static char * friendly_print(unsigned char * s) ++{ ++ char * f = kmalloc(strlen(s) + 1, GFP_ATOMIC); ++ int i; ++ ++ if(!f) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in friendly_print, bailing.\n"); ++ return NULL; ++ } ++ ++ for(i = 0; i < strlen(s); i++){ ++ if(isprint(s[i]) && s[i] < 128) f[i] = s[i]; ++ else if(isspace(s[i])) f[i] = ' '; ++ else f[i] = '.'; ++ } ++ f[i] = '\0'; ++ return f; ++} ++ ++static char dec2hex(int i) ++{ ++ switch (i) { ++ case 0 ... 9: ++ return (char)(i + '0'); ++ break; ++ case 10 ... 15: ++ return (char)(i - 10 + 'a'); ++ break; ++ default: ++ if (net_ratelimit()) ++ printk("Problem in dec2hex\n"); ++ return '\0'; ++ } ++} ++ ++static char * hex_print(unsigned char * s) ++{ ++ char * g = kmalloc(strlen(s)*3 + 1, GFP_ATOMIC); ++ int i; ++ ++ if(!g) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in hex_print, bailing.\n"); ++ return NULL; ++ } ++ ++ for(i = 0; i < strlen(s); i++) { ++ g[i*3 ] = dec2hex(s[i]/16); ++ g[i*3 + 1] = dec2hex(s[i]%16); ++ g[i*3 + 2] = ' '; ++ } ++ g[i*3] = '\0'; ++ ++ return g; ++} ++#endif // DEBUG ++ ++/* Use instead of regcomp. As we expect to be seeing the same regexps over and ++over again, it make sense to cache the results. */ ++static regexp * compile_and_cache(char * regex_string, char * protocol) ++{ ++ struct pattern_cache * node = first_pattern_cache; ++ struct pattern_cache * last_pattern_cache = first_pattern_cache; ++ struct pattern_cache * tmp; ++ unsigned int len; ++ ++ while (node != NULL) { ++ if (!strcmp(node->regex_string, regex_string)) ++ return node->pattern; ++ ++ last_pattern_cache = node;/* points at the last non-NULL node */ ++ node = node->next; ++ } ++ ++ /* If we reach the end of the list, then we have not yet cached ++ the pattern for this regex. Let's do that now. ++ Be paranoid about running out of memory to avoid list corruption. */ ++ tmp = kmalloc(sizeof(struct pattern_cache), GFP_ATOMIC); ++ ++ if(!tmp) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in compile_and_cache, bailing.\n"); ++ return NULL; ++ } ++ ++ tmp->regex_string = kmalloc(strlen(regex_string) + 1, GFP_ATOMIC); ++ tmp->pattern = kmalloc(sizeof(struct regexp), GFP_ATOMIC); ++ tmp->next = NULL; ++ ++ if(!tmp->regex_string || !tmp->pattern) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in compile_and_cache, bailing.\n"); ++ kfree(tmp->regex_string); ++ kfree(tmp->pattern); ++ kfree(tmp); ++ return NULL; ++ } ++ ++ /* Ok. The new node is all ready now. */ ++ node = tmp; ++ ++ if(first_pattern_cache == NULL) /* list is empty */ ++ first_pattern_cache = node; /* make node the beginning */ ++ else ++ last_pattern_cache->next = node; /* attach node to the end */ ++ ++ /* copy the string and compile the regex */ ++ len = strlen(regex_string); ++ DPRINTK("About to compile this: \"%s\"\n", regex_string); ++ node->pattern = regcomp(regex_string, &len); ++ if ( !node->pattern ) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: Error compiling regexp \"%s\" (%s)\n", regex_string, protocol); ++ /* pattern is now cached as NULL, so we won't try again. */ ++ } ++ ++ strcpy(node->regex_string, regex_string); ++ return node->pattern; ++} ++ ++static int can_handle(const struct sk_buff *skb) ++{ ++ if(!skb->nh.iph) /* not IP */ ++ return 0; ++ if(skb->nh.iph->protocol != IPPROTO_TCP && ++ skb->nh.iph->protocol != IPPROTO_UDP && ++ skb->nh.iph->protocol != IPPROTO_ICMP) ++ return 0; ++ return 1; ++} ++ ++/* Returns offset the into the skb->data that the application data starts */ ++static int app_data_offset(const struct sk_buff *skb) ++{ ++ /* In case we are ported somewhere (ebtables?) where skb->nh.iph ++ isn't set, this can be gotten from 4*(skb->data[0] & 0x0f) as well. */ ++ int ip_hl = 4*skb->nh.iph->ihl; ++ ++ if( skb->nh.iph->protocol == IPPROTO_TCP ) { ++ /* 12 == offset into TCP header for the header length field. ++ Can't get this with skb->h.th->doff because the tcphdr ++ struct doesn't get set when routing (this is confirmed to be ++ true in Netfilter as well as QoS.) */ ++ int tcp_hl = 4*(skb->data[ip_hl + 12] >> 4); ++ ++ return ip_hl + tcp_hl; ++ } else if( skb->nh.iph->protocol == IPPROTO_UDP ) { ++ return ip_hl + 8; /* UDP header is always 8 bytes */ ++ } else if( skb->nh.iph->protocol == IPPROTO_ICMP ) { ++ return ip_hl + 8; /* ICMP header is 8 bytes */ ++ } else { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: tried to handle unknown protocol!\n"); ++ return ip_hl + 8; /* something reasonable */ ++ } ++} ++ ++/* handles whether there's a match when we aren't appending data anymore */ ++static int match_no_append(struct ip_conntrack * conntrack, struct ip_conntrack * master_conntrack, ++ enum ip_conntrack_info ctinfo, enum ip_conntrack_info master_ctinfo, ++ struct ipt_layer7_info * info) ++{ ++ /* If we're in here, throw the app data away */ ++ write_lock(&ct_lock); ++ if(master_conntrack->layer7.app_data != NULL) { ++ ++ #ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG ++ if(!master_conntrack->layer7.app_proto) { ++ char * f = friendly_print(master_conntrack->layer7.app_data); ++ char * g = hex_print(master_conntrack->layer7.app_data); ++ DPRINTK("\nl7-filter gave up after %d bytes (%d packets):\n%s\n", ++ strlen(f), TOTAL_PACKETS, f); ++ kfree(f); ++ DPRINTK("In hex: %s\n", g); ++ kfree(g); ++ } ++ #endif ++ ++ kfree(master_conntrack->layer7.app_data); ++ master_conntrack->layer7.app_data = NULL; /* don't free again */ ++ } ++ write_unlock(&ct_lock); ++ ++ if(master_conntrack->layer7.app_proto){ ++ /* Here child connections set their .app_proto (for /proc/net/ip_conntrack) */ ++ write_lock(&ct_lock); ++ if(!conntrack->layer7.app_proto) { ++ conntrack->layer7.app_proto = kmalloc(strlen(master_conntrack->layer7.app_proto)+1, GFP_ATOMIC); ++ if(!conntrack->layer7.app_proto){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in match_no_append, bailing.\n"); ++ write_unlock(&ct_lock); ++ return 1; ++ } ++ strcpy(conntrack->layer7.app_proto, master_conntrack->layer7.app_proto); ++ } ++ write_unlock(&ct_lock); ++ ++ return (!strcmp(master_conntrack->layer7.app_proto, info->protocol)); ++ } ++ else { ++ /* If not classified, set to "unknown" to distinguish from ++ connections that are still being tested. */ ++ write_lock(&ct_lock); ++ master_conntrack->layer7.app_proto = kmalloc(strlen("unknown")+1, GFP_ATOMIC); ++ if(!master_conntrack->layer7.app_proto){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in match_no_append, bailing.\n"); ++ write_unlock(&ct_lock); ++ return 1; ++ } ++ strcpy(master_conntrack->layer7.app_proto, "unknown"); ++ write_unlock(&ct_lock); ++ return 0; ++ } ++} ++ ++/* add the new app data to the conntrack. Return number of bytes added. */ ++static int add_data(struct ip_conntrack * master_conntrack, ++ char * app_data, int appdatalen) ++{ ++ int length = 0, i; ++ int oldlength = master_conntrack->layer7.app_data_len; ++ ++ // This is a fix for a race condition by Deti Fliegl. However, I'm not ++ // clear on whether the race condition exists or whether this really ++ // fixes it. I might just be being dense... Anyway, if it's not really ++ // a fix, all it does is waste a very small amount of time. ++ if(!master_conntrack->layer7.app_data) return 0; ++ ++ /* Strip nulls. Make everything lower case (our regex lib doesn't ++ do case insensitivity). Add it to the end of the current data. */ ++ for(i = 0; i < maxdatalen-oldlength-1 && ++ i < appdatalen; i++) { ++ if(app_data[i] != '\0') { ++ master_conntrack->layer7.app_data[length+oldlength] = ++ /* the kernel version of tolower mungs 'upper ascii' */ ++ isascii(app_data[i])? tolower(app_data[i]) : app_data[i]; ++ length++; ++ } ++ } ++ ++ master_conntrack->layer7.app_data[length+oldlength] = '\0'; ++ master_conntrack->layer7.app_data_len = length + oldlength; ++ ++ return length; ++} ++ ++/* Returns true on match and false otherwise. */ ++static int match(const struct sk_buff *skbin, ++ const struct net_device *in, const struct net_device *out, ++ const struct xt_match *match, const void *matchinfo, ++ int offset, unsigned int protoff, int *hotdrop) ++{ ++ /* sidestep const without getting a compiler warning... */ ++ struct sk_buff * skb = (struct sk_buff *)skbin; ++ ++ struct ipt_layer7_info * info = (struct ipt_layer7_info *)matchinfo; ++ enum ip_conntrack_info master_ctinfo, ctinfo; ++ struct ip_conntrack *master_conntrack, *conntrack; ++ unsigned char * app_data; ++ unsigned int pattern_result, appdatalen; ++ regexp * comppattern; ++ ++ if(!can_handle(skb)){ ++ DPRINTK("layer7: This is some protocol I can't handle.\n"); ++ return info->invert; ++ } ++ ++ /* Treat parent & all its children together as one connection, except ++ for the purpose of setting conntrack->layer7.app_proto in the actual ++ connection. This makes /proc/net/ip_conntrack more satisfying. */ ++ if(!(conntrack = ip_conntrack_get((struct sk_buff *)skb, &ctinfo)) || ++ !(master_conntrack = ip_conntrack_get((struct sk_buff *)skb, &master_ctinfo))) { ++ //DPRINTK("layer7: packet is not from a known connection, giving up.\n"); ++ return info->invert; ++ } ++ ++ /* Try to get a master conntrack (and its master etc) for FTP, etc. */ ++ while (master_ct(master_conntrack) != NULL) ++ master_conntrack = master_ct(master_conntrack); ++ ++ /* if we've classified it or seen too many packets */ ++ if(TOTAL_PACKETS > num_packets || ++ master_conntrack->layer7.app_proto) { ++ ++ pattern_result = match_no_append(conntrack, master_conntrack, ctinfo, master_ctinfo, info); ++ ++ /* skb->cb[0] == seen. Avoid doing things twice if there are two l7 ++ rules. I'm not sure that using cb for this purpose is correct, although ++ it says "put your private variables there". But it doesn't look like it ++ is being used for anything else in the skbs that make it here. How can ++ I write to cb without making the compiler angry? */ ++ skb->cb[0] = 1; /* marking it seen here is probably irrelevant, but consistant */ ++ ++ return (pattern_result ^ info->invert); ++ } ++ ++ if(skb_is_nonlinear(skb)){ ++ if(skb_linearize(skb) != 0){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: failed to linearize packet, bailing.\n"); ++ return info->invert; ++ } ++ } ++ ++ /* now that the skb is linearized, it's safe to set these. */ ++ app_data = skb->data + app_data_offset(skb); ++ appdatalen = skb->tail - app_data; ++ ++ spin_lock_bh(&list_lock); ++ /* the return value gets checked later, when we're ready to use it */ ++ comppattern = compile_and_cache(info->pattern, info->protocol); ++ spin_unlock_bh(&list_lock); ++ ++ /* On the first packet of a connection, allocate space for app data */ ++ write_lock(&ct_lock); ++ if(TOTAL_PACKETS == 1 && !skb->cb[0] && !master_conntrack->layer7.app_data) { ++ master_conntrack->layer7.app_data = kmalloc(maxdatalen, GFP_ATOMIC); ++ if(!master_conntrack->layer7.app_data){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in match, bailing.\n"); ++ write_unlock(&ct_lock); ++ return info->invert; ++ } ++ ++ master_conntrack->layer7.app_data[0] = '\0'; ++ } ++ write_unlock(&ct_lock); ++ ++ /* Can be here, but unallocated, if numpackets is increased near ++ the beginning of a connection */ ++ if(master_conntrack->layer7.app_data == NULL) ++ return (info->invert); /* unmatched */ ++ ++ if(!skb->cb[0]){ ++ int newbytes; ++ write_lock(&ct_lock); ++ newbytes = add_data(master_conntrack, app_data, appdatalen); ++ write_unlock(&ct_lock); ++ ++ if(newbytes == 0) { /* didn't add any data */ ++ skb->cb[0] = 1; ++ /* Didn't match before, not going to match now */ ++ return info->invert; ++ } ++ } ++ ++ /* If looking for "unknown", then never match. "Unknown" means that ++ we've given up; we're still trying with these packets. */ ++ read_lock(&ct_lock); ++ if(!strcmp(info->protocol, "unknown")) { ++ pattern_result = 0; ++ /* If the regexp failed to compile, don't bother running it */ ++ } else if(comppattern && regexec(comppattern, master_conntrack->layer7.app_data)) { ++ DPRINTK("layer7: matched %s\n", info->protocol); ++ pattern_result = 1; ++ } else pattern_result = 0; ++ read_unlock(&ct_lock); ++ ++ if(pattern_result) { ++ write_lock(&ct_lock); ++ master_conntrack->layer7.app_proto = kmalloc(strlen(info->protocol)+1, GFP_ATOMIC); ++ if(!master_conntrack->layer7.app_proto){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in match, bailing.\n"); ++ write_unlock(&ct_lock); ++ return (pattern_result ^ info->invert); ++ } ++ strcpy(master_conntrack->layer7.app_proto, info->protocol); ++ write_unlock(&ct_lock); ++ } ++ ++ /* mark the packet seen */ ++ skb->cb[0] = 1; ++ ++ return (pattern_result ^ info->invert); ++} ++ ++static struct ipt_match layer7_match = { ++ .name = "layer7", ++ .match = &match, ++ .matchsize = sizeof(struct ipt_layer7_info), ++ .me = THIS_MODULE ++}; ++ ++/* taken from drivers/video/modedb.c */ ++static int my_atoi(const char *s) ++{ ++ int val = 0; ++ ++ for (;; s++) { ++ switch (*s) { ++ case '0'...'9': ++ val = 10*val+(*s-'0'); ++ break; ++ default: ++ return val; ++ } ++ } ++} ++ ++/* write out num_packets to userland. */ ++static int layer7_read_proc(char* page, char ** start, off_t off, int count, ++ int* eof, void * data) ++{ ++ if(num_packets > 99 && net_ratelimit()) ++ printk(KERN_ERR "layer7: NOT REACHED. num_packets too big\n"); ++ ++ page[0] = num_packets/10 + '0'; ++ page[1] = num_packets%10 + '0'; ++ page[2] = '\n'; ++ page[3] = '\0'; ++ ++ *eof=1; ++ ++ return 3; ++} ++ ++/* Read in num_packets from userland */ ++static int layer7_write_proc(struct file* file, const char* buffer, ++ unsigned long count, void *data) ++{ ++ char * foo = kmalloc(count, GFP_ATOMIC); ++ ++ if(!foo){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory, bailing. num_packets unchanged.\n"); ++ return count; ++ } ++ ++ if(copy_from_user(foo, buffer, count)) { ++ return -EFAULT; ++ } ++ ++ ++ num_packets = my_atoi(foo); ++ kfree (foo); ++ ++ /* This has an arbitrary limit to make the math easier. I'm lazy. ++ But anyway, 99 is a LOT! If you want more, you're doing it wrong! */ ++ if(num_packets > 99) { ++ printk(KERN_WARNING "layer7: num_packets can't be > 99.\n"); ++ num_packets = 99; ++ } else if(num_packets < 1) { ++ printk(KERN_WARNING "layer7: num_packets can't be < 1.\n"); ++ num_packets = 1; ++ } ++ ++ return count; ++} ++ ++/* register the proc file */ ++static void layer7_init_proc(void) ++{ ++ struct proc_dir_entry* entry; ++ entry = create_proc_entry("layer7_numpackets", 0644, proc_net); ++ entry->read_proc = layer7_read_proc; ++ entry->write_proc = layer7_write_proc; ++} ++ ++static void layer7_cleanup_proc(void) ++{ ++ remove_proc_entry("layer7_numpackets", proc_net); ++} ++ ++static int __init ipt_layer7_init(void) ++{ ++ need_conntrack(); ++ ++ layer7_init_proc(); ++ if(maxdatalen < 1) { ++ printk(KERN_WARNING "layer7: maxdatalen can't be < 1, using 1\n"); ++ maxdatalen = 1; ++ } ++ /* This is not a hard limit. It's just here to prevent people from ++ bringing their slow machines to a grinding halt. */ ++ else if(maxdatalen > 65536) { ++ printk(KERN_WARNING "layer7: maxdatalen can't be > 65536, using 65536\n"); ++ maxdatalen = 65536; ++ } ++ return ipt_register_match(&layer7_match); ++} ++ ++static void __exit ipt_layer7_fini(void) ++{ ++ layer7_cleanup_proc(); ++ ipt_unregister_match(&layer7_match); ++} ++ ++module_init(ipt_layer7_init); ++module_exit(ipt_layer7_fini); +diff -urN linux.old/net/ipv4/netfilter/Kconfig linux.dev/net/ipv4/netfilter/Kconfig +--- linux.old/net/ipv4/netfilter/Kconfig 2007-01-01 05:17:07.000000000 +0100 ++++ linux.dev/net/ipv4/netfilter/Kconfig 2007-01-01 05:18:48.000000000 +0100 +@@ -248,6 +248,24 @@ + + To compile it as a module, choose M here. If unsure, say N. + ++config IP_NF_MATCH_LAYER7 ++ tristate "Layer 7 match support (EXPERIMENTAL)" ++ depends on IP_NF_IPTABLES && IP_NF_CT_ACCT && IP_NF_CONNTRACK && EXPERIMENTAL ++ help ++ Say Y if you want to be able to classify connections (and their ++ packets) based on regular expression matching of their application ++ layer data. This is one way to classify applications such as ++ peer-to-peer filesharing systems that do not always use the same ++ port. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config IP_NF_MATCH_LAYER7_DEBUG ++ bool "Layer 7 debugging output" ++ depends on IP_NF_MATCH_LAYER7 ++ help ++ Say Y to get lots of debugging output. ++ + config IP_NF_MATCH_TOS + tristate "TOS match support" + depends on IP_NF_IPTABLES +diff -urN linux.old/net/ipv4/netfilter/Makefile linux.dev/net/ipv4/netfilter/Makefile +--- linux.old/net/ipv4/netfilter/Makefile 2007-01-01 05:17:07.000000000 +0100 ++++ linux.dev/net/ipv4/netfilter/Makefile 2007-01-01 05:18:48.000000000 +0100 +@@ -63,6 +63,8 @@ + obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o + obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ipt_addrtype.o + ++obj-$(CONFIG_IP_NF_MATCH_LAYER7) += ipt_layer7.o ++ + # targets + obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o + obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o +diff -urN linux.old/net/ipv4/netfilter/regexp/regexp.c linux.dev/net/ipv4/netfilter/regexp/regexp.c +--- linux.old/net/ipv4/netfilter/regexp/regexp.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/net/ipv4/netfilter/regexp/regexp.c 2007-01-01 05:18:48.000000000 +0100 +@@ -0,0 +1,1197 @@ ++/* ++ * regcomp and regexec -- regsub and regerror are elsewhere ++ * @(#)regexp.c 1.3 of 18 April 87 ++ * ++ * Copyright (c) 1986 by University of Toronto. ++ * Written by Henry Spencer. Not derived from licensed software. ++ * ++ * Permission is granted to anyone to use this software for any ++ * purpose on any computer system, and to redistribute it freely, ++ * subject to the following restrictions: ++ * ++ * 1. The author is not responsible for the consequences of use of ++ * this software, no matter how awful, even if they arise ++ * from defects in it. ++ * ++ * 2. The origin of this software must not be misrepresented, either ++ * by explicit claim or by omission. ++ * ++ * 3. Altered versions must be plainly marked as such, and must not ++ * be misrepresented as being the original software. ++ * ++ * Beware that some of this code is subtly aware of the way operator ++ * precedence is structured in regular expressions. Serious changes in ++ * regular-expression syntax might require a total rethink. ++ * ++ * This code was modified by Ethan Sommer to work within the kernel ++ * (it now uses kmalloc etc..) ++ * ++ * Modified slightly by Matthew Strait to use more modern C. ++ */ ++ ++#include "regexp.h" ++#include "regmagic.h" ++ ++/* added by ethan and matt. Lets it work in both kernel and user space. ++(So iptables can use it, for instance.) Yea, it goes both ways... */ ++#if __KERNEL__ ++ #define malloc(foo) kmalloc(foo,GFP_ATOMIC) ++#else ++ #define printk(format,args...) printf(format,##args) ++#endif ++ ++void regerror(char * s) ++{ ++ printk("<3>Regexp: %s\n", s); ++ /* NOTREACHED */ ++} ++ ++/* ++ * The "internal use only" fields in regexp.h are present to pass info from ++ * compile to execute that permits the execute phase to run lots faster on ++ * simple cases. They are: ++ * ++ * regstart char that must begin a match; '\0' if none obvious ++ * reganch is the match anchored (at beginning-of-line only)? ++ * regmust string (pointer into program) that match must include, or NULL ++ * regmlen length of regmust string ++ * ++ * Regstart and reganch permit very fast decisions on suitable starting points ++ * for a match, cutting down the work a lot. Regmust permits fast rejection ++ * of lines that cannot possibly match. The regmust tests are costly enough ++ * that regcomp() supplies a regmust only if the r.e. contains something ++ * potentially expensive (at present, the only such thing detected is * or + ++ * at the start of the r.e., which can involve a lot of backup). Regmlen is ++ * supplied because the test in regexec() needs it and regcomp() is computing ++ * it anyway. ++ */ ++ ++/* ++ * Structure for regexp "program". This is essentially a linear encoding ++ * of a nondeterministic finite-state machine (aka syntax charts or ++ * "railroad normal form" in parsing technology). Each node is an opcode ++ * plus a "next" pointer, possibly plus an operand. "Next" pointers of ++ * all nodes except BRANCH implement concatenation; a "next" pointer with ++ * a BRANCH on both ends of it is connecting two alternatives. (Here we ++ * have one of the subtle syntax dependencies: an individual BRANCH (as ++ * opposed to a collection of them) is never concatenated with anything ++ * because of operator precedence.) The operand of some types of node is ++ * a literal string; for others, it is a node leading into a sub-FSM. In ++ * particular, the operand of a BRANCH node is the first node of the branch. ++ * (NB this is *not* a tree structure: the tail of the branch connects ++ * to the thing following the set of BRANCHes.) The opcodes are: ++ */ ++ ++/* definition number opnd? meaning */ ++#define END 0 /* no End of program. */ ++#define BOL 1 /* no Match "" at beginning of line. */ ++#define EOL 2 /* no Match "" at end of line. */ ++#define ANY 3 /* no Match any one character. */ ++#define ANYOF 4 /* str Match any character in this string. */ ++#define ANYBUT 5 /* str Match any character not in this string. */ ++#define BRANCH 6 /* node Match this alternative, or the next... */ ++#define BACK 7 /* no Match "", "next" ptr points backward. */ ++#define EXACTLY 8 /* str Match this string. */ ++#define NOTHING 9 /* no Match empty string. */ ++#define STAR 10 /* node Match this (simple) thing 0 or more times. */ ++#define PLUS 11 /* node Match this (simple) thing 1 or more times. */ ++#define OPEN 20 /* no Mark this point in input as start of #n. */ ++ /* OPEN+1 is number 1, etc. */ ++#define CLOSE 30 /* no Analogous to OPEN. */ ++ ++/* ++ * Opcode notes: ++ * ++ * BRANCH The set of branches constituting a single choice are hooked ++ * together with their "next" pointers, since precedence prevents ++ * anything being concatenated to any individual branch. The ++ * "next" pointer of the last BRANCH in a choice points to the ++ * thing following the whole choice. This is also where the ++ * final "next" pointer of each individual branch points; each ++ * branch starts with the operand node of a BRANCH node. ++ * ++ * BACK Normal "next" pointers all implicitly point forward; BACK ++ * exists to make loop structures possible. ++ * ++ * STAR,PLUS '?', and complex '*' and '+', are implemented as circular ++ * BRANCH structures using BACK. Simple cases (one character ++ * per match) are implemented with STAR and PLUS for speed ++ * and to minimize recursive plunges. ++ * ++ * OPEN,CLOSE ...are numbered at compile time. ++ */ ++ ++/* ++ * A node is one char of opcode followed by two chars of "next" pointer. ++ * "Next" pointers are stored as two 8-bit pieces, high order first. The ++ * value is a positive offset from the opcode of the node containing it. ++ * An operand, if any, simply follows the node. (Note that much of the ++ * code generation knows about this implicit relationship.) ++ * ++ * Using two bytes for the "next" pointer is vast overkill for most things, ++ * but allows patterns to get big without disasters. ++ */ ++#define OP(p) (*(p)) ++#define NEXT(p) (((*((p)+1)&0377)<<8) + (*((p)+2)&0377)) ++#define OPERAND(p) ((p) + 3) ++ ++/* ++ * See regmagic.h for one further detail of program structure. ++ */ ++ ++ ++/* ++ * Utility definitions. ++ */ ++#ifndef CHARBITS ++#define UCHARAT(p) ((int)*(unsigned char *)(p)) ++#else ++#define UCHARAT(p) ((int)*(p)&CHARBITS) ++#endif ++ ++#define FAIL(m) { regerror(m); return(NULL); } ++#define ISMULT(c) ((c) == '*' || (c) == '+' || (c) == '?') ++#define META "^$.[()|?+*\\" ++ ++/* ++ * Flags to be passed up and down. ++ */ ++#define HASWIDTH 01 /* Known never to match null string. */ ++#define SIMPLE 02 /* Simple enough to be STAR/PLUS operand. */ ++#define SPSTART 04 /* Starts with * or +. */ ++#define WORST 0 /* Worst case. */ ++ ++/* ++ * Global work variables for regcomp(). ++ */ ++struct match_globals { ++char *reginput; /* String-input pointer. */ ++char *regbol; /* Beginning of input, for ^ check. */ ++char **regstartp; /* Pointer to startp array. */ ++char **regendp; /* Ditto for endp. */ ++char *regparse; /* Input-scan pointer. */ ++int regnpar; /* () count. */ ++char regdummy; ++char *regcode; /* Code-emit pointer; ®dummy = don't. */ ++long regsize; /* Code size. */ ++}; ++ ++/* ++ * Forward declarations for regcomp()'s friends. ++ */ ++#ifndef STATIC ++#define STATIC static ++#endif ++STATIC char *reg(struct match_globals *g, int paren,int *flagp); ++STATIC char *regbranch(struct match_globals *g, int *flagp); ++STATIC char *regpiece(struct match_globals *g, int *flagp); ++STATIC char *regatom(struct match_globals *g, int *flagp); ++STATIC char *regnode(struct match_globals *g, char op); ++STATIC char *regnext(struct match_globals *g, char *p); ++STATIC void regc(struct match_globals *g, char b); ++STATIC void reginsert(struct match_globals *g, char op, char *opnd); ++STATIC void regtail(struct match_globals *g, char *p, char *val); ++STATIC void regoptail(struct match_globals *g, char *p, char *val); ++ ++ ++__kernel_size_t my_strcspn(const char *s1,const char *s2) ++{ ++ char *scan1; ++ char *scan2; ++ int count; ++ ++ count = 0; ++ for (scan1 = (char *)s1; *scan1 != '\0'; scan1++) { ++ for (scan2 = (char *)s2; *scan2 != '\0';) /* ++ moved down. */ ++ if (*scan1 == *scan2++) ++ return(count); ++ count++; ++ } ++ return(count); ++} ++ ++/* ++ - regcomp - compile a regular expression into internal code ++ * ++ * We can't allocate space until we know how big the compiled form will be, ++ * but we can't compile it (and thus know how big it is) until we've got a ++ * place to put the code. So we cheat: we compile it twice, once with code ++ * generation turned off and size counting turned on, and once "for real". ++ * This also means that we don't allocate space until we are sure that the ++ * thing really will compile successfully, and we never have to move the ++ * code and thus invalidate pointers into it. (Note that it has to be in ++ * one piece because free() must be able to free it all.) ++ * ++ * Beware that the optimization-preparation code in here knows about some ++ * of the structure of the compiled regexp. ++ */ ++regexp * ++regcomp(char *exp,int *patternsize) ++{ ++ register regexp *r; ++ register char *scan; ++ register char *longest; ++ register int len; ++ int flags; ++ struct match_globals g; ++ ++ /* commented out by ethan ++ extern char *malloc(); ++ */ ++ ++ if (exp == NULL) ++ FAIL("NULL argument"); ++ ++ /* First pass: determine size, legality. */ ++ g.regparse = exp; ++ g.regnpar = 1; ++ g.regsize = 0L; ++ g.regcode = &g.regdummy; ++ regc(&g, MAGIC); ++ if (reg(&g, 0, &flags) == NULL) ++ return(NULL); ++ ++ /* Small enough for pointer-storage convention? */ ++ if (g.regsize >= 32767L) /* Probably could be 65535L. */ ++ FAIL("regexp too big"); ++ ++ /* Allocate space. */ ++ *patternsize=sizeof(regexp) + (unsigned)g.regsize; ++ r = (regexp *)malloc(sizeof(regexp) + (unsigned)g.regsize); ++ if (r == NULL) ++ FAIL("out of space"); ++ ++ /* Second pass: emit code. */ ++ g.regparse = exp; ++ g.regnpar = 1; ++ g.regcode = r->program; ++ regc(&g, MAGIC); ++ if (reg(&g, 0, &flags) == NULL) ++ return(NULL); ++ ++ /* Dig out information for optimizations. */ ++ r->regstart = '\0'; /* Worst-case defaults. */ ++ r->reganch = 0; ++ r->regmust = NULL; ++ r->regmlen = 0; ++ scan = r->program+1; /* First BRANCH. */ ++ if (OP(regnext(&g, scan)) == END) { /* Only one top-level choice. */ ++ scan = OPERAND(scan); ++ ++ /* Starting-point info. */ ++ if (OP(scan) == EXACTLY) ++ r->regstart = *OPERAND(scan); ++ else if (OP(scan) == BOL) ++ r->reganch++; ++ ++ /* ++ * If there's something expensive in the r.e., find the ++ * longest literal string that must appear and make it the ++ * regmust. Resolve ties in favor of later strings, since ++ * the regstart check works with the beginning of the r.e. ++ * and avoiding duplication strengthens checking. Not a ++ * strong reason, but sufficient in the absence of others. ++ */ ++ if (flags&SPSTART) { ++ longest = NULL; ++ len = 0; ++ for (; scan != NULL; scan = regnext(&g, scan)) ++ if (OP(scan) == EXACTLY && strlen(OPERAND(scan)) >= len) { ++ longest = OPERAND(scan); ++ len = strlen(OPERAND(scan)); ++ } ++ r->regmust = longest; ++ r->regmlen = len; ++ } ++ } ++ ++ return(r); ++} ++ ++/* ++ - reg - regular expression, i.e. main body or parenthesized thing ++ * ++ * Caller must absorb opening parenthesis. ++ * ++ * Combining parenthesis handling with the base level of regular expression ++ * is a trifle forced, but the need to tie the tails of the branches to what ++ * follows makes it hard to avoid. ++ */ ++static char * ++reg(struct match_globals *g, int paren, int *flagp /* Parenthesized? */ ) ++{ ++ register char *ret; ++ register char *br; ++ register char *ender; ++ register int parno = 0; /* 0 makes gcc happy */ ++ int flags; ++ ++ *flagp = HASWIDTH; /* Tentatively. */ ++ ++ /* Make an OPEN node, if parenthesized. */ ++ if (paren) { ++ if (g->regnpar >= NSUBEXP) ++ FAIL("too many ()"); ++ parno = g->regnpar; ++ g->regnpar++; ++ ret = regnode(g, OPEN+parno); ++ } else ++ ret = NULL; ++ ++ /* Pick up the branches, linking them together. */ ++ br = regbranch(g, &flags); ++ if (br == NULL) ++ return(NULL); ++ if (ret != NULL) ++ regtail(g, ret, br); /* OPEN -> first. */ ++ else ++ ret = br; ++ if (!(flags&HASWIDTH)) ++ *flagp &= ~HASWIDTH; ++ *flagp |= flags&SPSTART; ++ while (*g->regparse == '|') { ++ g->regparse++; ++ br = regbranch(g, &flags); ++ if (br == NULL) ++ return(NULL); ++ regtail(g, ret, br); /* BRANCH -> BRANCH. */ ++ if (!(flags&HASWIDTH)) ++ *flagp &= ~HASWIDTH; ++ *flagp |= flags&SPSTART; ++ } ++ ++ /* Make a closing node, and hook it on the end. */ ++ ender = regnode(g, (paren) ? CLOSE+parno : END); ++ regtail(g, ret, ender); ++ ++ /* Hook the tails of the branches to the closing node. */ ++ for (br = ret; br != NULL; br = regnext(g, br)) ++ regoptail(g, br, ender); ++ ++ /* Check for proper termination. */ ++ if (paren && *g->regparse++ != ')') { ++ FAIL("unmatched ()"); ++ } else if (!paren && *g->regparse != '\0') { ++ if (*g->regparse == ')') { ++ FAIL("unmatched ()"); ++ } else ++ FAIL("junk on end"); /* "Can't happen". */ ++ /* NOTREACHED */ ++ } ++ ++ return(ret); ++} ++ ++/* ++ - regbranch - one alternative of an | operator ++ * ++ * Implements the concatenation operator. ++ */ ++static char * ++regbranch(struct match_globals *g, int *flagp) ++{ ++ register char *ret; ++ register char *chain; ++ register char *latest; ++ int flags; ++ ++ *flagp = WORST; /* Tentatively. */ ++ ++ ret = regnode(g, BRANCH); ++ chain = NULL; ++ while (*g->regparse != '\0' && *g->regparse != '|' && *g->regparse != ')') { ++ latest = regpiece(g, &flags); ++ if (latest == NULL) ++ return(NULL); ++ *flagp |= flags&HASWIDTH; ++ if (chain == NULL) /* First piece. */ ++ *flagp |= flags&SPSTART; ++ else ++ regtail(g, chain, latest); ++ chain = latest; ++ } ++ if (chain == NULL) /* Loop ran zero times. */ ++ (void) regnode(g, NOTHING); ++ ++ return(ret); ++} ++ ++/* ++ - regpiece - something followed by possible [*+?] ++ * ++ * Note that the branching code sequences used for ? and the general cases ++ * of * and + are somewhat optimized: they use the same NOTHING node as ++ * both the endmarker for their branch list and the body of the last branch. ++ * It might seem that this node could be dispensed with entirely, but the ++ * endmarker role is not redundant. ++ */ ++static char * ++regpiece(struct match_globals *g, int *flagp) ++{ ++ register char *ret; ++ register char op; ++ register char *next; ++ int flags; ++ ++ ret = regatom(g, &flags); ++ if (ret == NULL) ++ return(NULL); ++ ++ op = *g->regparse; ++ if (!ISMULT(op)) { ++ *flagp = flags; ++ return(ret); ++ } ++ ++ if (!(flags&HASWIDTH) && op != '?') ++ FAIL("*+ operand could be empty"); ++ *flagp = (op != '+') ? (WORST|SPSTART) : (WORST|HASWIDTH); ++ ++ if (op == '*' && (flags&SIMPLE)) ++ reginsert(g, STAR, ret); ++ else if (op == '*') { ++ /* Emit x* as (x&|), where & means "self". */ ++ reginsert(g, BRANCH, ret); /* Either x */ ++ regoptail(g, ret, regnode(g, BACK)); /* and loop */ ++ regoptail(g, ret, ret); /* back */ ++ regtail(g, ret, regnode(g, BRANCH)); /* or */ ++ regtail(g, ret, regnode(g, NOTHING)); /* null. */ ++ } else if (op == '+' && (flags&SIMPLE)) ++ reginsert(g, PLUS, ret); ++ else if (op == '+') { ++ /* Emit x+ as x(&|), where & means "self". */ ++ next = regnode(g, BRANCH); /* Either */ ++ regtail(g, ret, next); ++ regtail(g, regnode(g, BACK), ret); /* loop back */ ++ regtail(g, next, regnode(g, BRANCH)); /* or */ ++ regtail(g, ret, regnode(g, NOTHING)); /* null. */ ++ } else if (op == '?') { ++ /* Emit x? as (x|) */ ++ reginsert(g, BRANCH, ret); /* Either x */ ++ regtail(g, ret, regnode(g, BRANCH)); /* or */ ++ next = regnode(g, NOTHING); /* null. */ ++ regtail(g, ret, next); ++ regoptail(g, ret, next); ++ } ++ g->regparse++; ++ if (ISMULT(*g->regparse)) ++ FAIL("nested *?+"); ++ ++ return(ret); ++} ++ ++/* ++ - regatom - the lowest level ++ * ++ * Optimization: gobbles an entire sequence of ordinary characters so that ++ * it can turn them into a single node, which is smaller to store and ++ * faster to run. Backslashed characters are exceptions, each becoming a ++ * separate node; the code is simpler that way and it's not worth fixing. ++ */ ++static char * ++regatom(struct match_globals *g, int *flagp) ++{ ++ register char *ret; ++ int flags; ++ ++ *flagp = WORST; /* Tentatively. */ ++ ++ switch (*g->regparse++) { ++ case '^': ++ ret = regnode(g, BOL); ++ break; ++ case '$': ++ ret = regnode(g, EOL); ++ break; ++ case '.': ++ ret = regnode(g, ANY); ++ *flagp |= HASWIDTH|SIMPLE; ++ break; ++ case '[': { ++ register int class; ++ register int classend; ++ ++ if (*g->regparse == '^') { /* Complement of range. */ ++ ret = regnode(g, ANYBUT); ++ g->regparse++; ++ } else ++ ret = regnode(g, ANYOF); ++ if (*g->regparse == ']' || *g->regparse == '-') ++ regc(g, *g->regparse++); ++ while (*g->regparse != '\0' && *g->regparse != ']') { ++ if (*g->regparse == '-') { ++ g->regparse++; ++ if (*g->regparse == ']' || *g->regparse == '\0') ++ regc(g, '-'); ++ else { ++ class = UCHARAT(g->regparse-2)+1; ++ classend = UCHARAT(g->regparse); ++ if (class > classend+1) ++ FAIL("invalid [] range"); ++ for (; class <= classend; class++) ++ regc(g, class); ++ g->regparse++; ++ } ++ } else ++ regc(g, *g->regparse++); ++ } ++ regc(g, '\0'); ++ if (*g->regparse != ']') ++ FAIL("unmatched []"); ++ g->regparse++; ++ *flagp |= HASWIDTH|SIMPLE; ++ } ++ break; ++ case '(': ++ ret = reg(g, 1, &flags); ++ if (ret == NULL) ++ return(NULL); ++ *flagp |= flags&(HASWIDTH|SPSTART); ++ break; ++ case '\0': ++ case '|': ++ case ')': ++ FAIL("internal urp"); /* Supposed to be caught earlier. */ ++ break; ++ case '?': ++ case '+': ++ case '*': ++ FAIL("?+* follows nothing"); ++ break; ++ case '\\': ++ if (*g->regparse == '\0') ++ FAIL("trailing \\"); ++ ret = regnode(g, EXACTLY); ++ regc(g, *g->regparse++); ++ regc(g, '\0'); ++ *flagp |= HASWIDTH|SIMPLE; ++ break; ++ default: { ++ register int len; ++ register char ender; ++ ++ g->regparse--; ++ len = my_strcspn((const char *)g->regparse, (const char *)META); ++ if (len <= 0) ++ FAIL("internal disaster"); ++ ender = *(g->regparse+len); ++ if (len > 1 && ISMULT(ender)) ++ len--; /* Back off clear of ?+* operand. */ ++ *flagp |= HASWIDTH; ++ if (len == 1) ++ *flagp |= SIMPLE; ++ ret = regnode(g, EXACTLY); ++ while (len > 0) { ++ regc(g, *g->regparse++); ++ len--; ++ } ++ regc(g, '\0'); ++ } ++ break; ++ } ++ ++ return(ret); ++} ++ ++/* ++ - regnode - emit a node ++ */ ++static char * /* Location. */ ++regnode(struct match_globals *g, char op) ++{ ++ register char *ret; ++ register char *ptr; ++ ++ ret = g->regcode; ++ if (ret == &g->regdummy) { ++ g->regsize += 3; ++ return(ret); ++ } ++ ++ ptr = ret; ++ *ptr++ = op; ++ *ptr++ = '\0'; /* Null "next" pointer. */ ++ *ptr++ = '\0'; ++ g->regcode = ptr; ++ ++ return(ret); ++} ++ ++/* ++ - regc - emit (if appropriate) a byte of code ++ */ ++static void ++regc(struct match_globals *g, char b) ++{ ++ if (g->regcode != &g->regdummy) ++ *g->regcode++ = b; ++ else ++ g->regsize++; ++} ++ ++/* ++ - reginsert - insert an operator in front of already-emitted operand ++ * ++ * Means relocating the operand. ++ */ ++static void ++reginsert(struct match_globals *g, char op, char* opnd) ++{ ++ register char *src; ++ register char *dst; ++ register char *place; ++ ++ if (g->regcode == &g->regdummy) { ++ g->regsize += 3; ++ return; ++ } ++ ++ src = g->regcode; ++ g->regcode += 3; ++ dst = g->regcode; ++ while (src > opnd) ++ *--dst = *--src; ++ ++ place = opnd; /* Op node, where operand used to be. */ ++ *place++ = op; ++ *place++ = '\0'; ++ *place++ = '\0'; ++} ++ ++/* ++ - regtail - set the next-pointer at the end of a node chain ++ */ ++static void ++regtail(struct match_globals *g, char *p, char *val) ++{ ++ register char *scan; ++ register char *temp; ++ register int offset; ++ ++ if (p == &g->regdummy) ++ return; ++ ++ /* Find last node. */ ++ scan = p; ++ for (;;) { ++ temp = regnext(g, scan); ++ if (temp == NULL) ++ break; ++ scan = temp; ++ } ++ ++ if (OP(scan) == BACK) ++ offset = scan - val; ++ else ++ offset = val - scan; ++ *(scan+1) = (offset>>8)&0377; ++ *(scan+2) = offset&0377; ++} ++ ++/* ++ - regoptail - regtail on operand of first argument; nop if operandless ++ */ ++static void ++regoptail(struct match_globals *g, char *p, char *val) ++{ ++ /* "Operandless" and "op != BRANCH" are synonymous in practice. */ ++ if (p == NULL || p == &g->regdummy || OP(p) != BRANCH) ++ return; ++ regtail(g, OPERAND(p), val); ++} ++ ++/* ++ * regexec and friends ++ */ ++ ++ ++/* ++ * Forwards. ++ */ ++STATIC int regtry(struct match_globals *g, regexp *prog, char *string); ++STATIC int regmatch(struct match_globals *g, char *prog); ++STATIC int regrepeat(struct match_globals *g, char *p); ++ ++#ifdef DEBUG ++int regnarrate = 0; ++void regdump(); ++STATIC char *regprop(char *op); ++#endif ++ ++/* ++ - regexec - match a regexp against a string ++ */ ++int ++regexec(regexp *prog, char *string) ++{ ++ register char *s; ++ struct match_globals g; ++ ++ /* Be paranoid... */ ++ if (prog == NULL || string == NULL) { ++ printk("<3>Regexp: NULL parameter\n"); ++ return(0); ++ } ++ ++ /* Check validity of program. */ ++ if (UCHARAT(prog->program) != MAGIC) { ++ printk("<3>Regexp: corrupted program\n"); ++ return(0); ++ } ++ ++ /* If there is a "must appear" string, look for it. */ ++ if (prog->regmust != NULL) { ++ s = string; ++ while ((s = strchr(s, prog->regmust[0])) != NULL) { ++ if (strncmp(s, prog->regmust, prog->regmlen) == 0) ++ break; /* Found it. */ ++ s++; ++ } ++ if (s == NULL) /* Not present. */ ++ return(0); ++ } ++ ++ /* Mark beginning of line for ^ . */ ++ g.regbol = string; ++ ++ /* Simplest case: anchored match need be tried only once. */ ++ if (prog->reganch) ++ return(regtry(&g, prog, string)); ++ ++ /* Messy cases: unanchored match. */ ++ s = string; ++ if (prog->regstart != '\0') ++ /* We know what char it must start with. */ ++ while ((s = strchr(s, prog->regstart)) != NULL) { ++ if (regtry(&g, prog, s)) ++ return(1); ++ s++; ++ } ++ else ++ /* We don't -- general case. */ ++ do { ++ if (regtry(&g, prog, s)) ++ return(1); ++ } while (*s++ != '\0'); ++ ++ /* Failure. */ ++ return(0); ++} ++ ++/* ++ - regtry - try match at specific point ++ */ ++static int /* 0 failure, 1 success */ ++regtry(struct match_globals *g, regexp *prog, char *string) ++{ ++ register int i; ++ register char **sp; ++ register char **ep; ++ ++ g->reginput = string; ++ g->regstartp = prog->startp; ++ g->regendp = prog->endp; ++ ++ sp = prog->startp; ++ ep = prog->endp; ++ for (i = NSUBEXP; i > 0; i--) { ++ *sp++ = NULL; ++ *ep++ = NULL; ++ } ++ if (regmatch(g, prog->program + 1)) { ++ prog->startp[0] = string; ++ prog->endp[0] = g->reginput; ++ return(1); ++ } else ++ return(0); ++} ++ ++/* ++ - regmatch - main matching routine ++ * ++ * Conceptually the strategy is simple: check to see whether the current ++ * node matches, call self recursively to see whether the rest matches, ++ * and then act accordingly. In practice we make some effort to avoid ++ * recursion, in particular by going through "ordinary" nodes (that don't ++ * need to know whether the rest of the match failed) by a loop instead of ++ * by recursion. ++ */ ++static int /* 0 failure, 1 success */ ++regmatch(struct match_globals *g, char *prog) ++{ ++ register char *scan = prog; /* Current node. */ ++ char *next; /* Next node. */ ++ ++#ifdef DEBUG ++ if (scan != NULL && regnarrate) ++ fprintf(stderr, "%s(\n", regprop(scan)); ++#endif ++ while (scan != NULL) { ++#ifdef DEBUG ++ if (regnarrate) ++ fprintf(stderr, "%s...\n", regprop(scan)); ++#endif ++ next = regnext(g, scan); ++ ++ switch (OP(scan)) { ++ case BOL: ++ if (g->reginput != g->regbol) ++ return(0); ++ break; ++ case EOL: ++ if (*g->reginput != '\0') ++ return(0); ++ break; ++ case ANY: ++ if (*g->reginput == '\0') ++ return(0); ++ g->reginput++; ++ break; ++ case EXACTLY: { ++ register int len; ++ register char *opnd; ++ ++ opnd = OPERAND(scan); ++ /* Inline the first character, for speed. */ ++ if (*opnd != *g->reginput) ++ return(0); ++ len = strlen(opnd); ++ if (len > 1 && strncmp(opnd, g->reginput, len) != 0) ++ return(0); ++ g->reginput += len; ++ } ++ break; ++ case ANYOF: ++ if (*g->reginput == '\0' || strchr(OPERAND(scan), *g->reginput) == NULL) ++ return(0); ++ g->reginput++; ++ break; ++ case ANYBUT: ++ if (*g->reginput == '\0' || strchr(OPERAND(scan), *g->reginput) != NULL) ++ return(0); ++ g->reginput++; ++ break; ++ case NOTHING: ++ case BACK: ++ break; ++ case OPEN+1: ++ case OPEN+2: ++ case OPEN+3: ++ case OPEN+4: ++ case OPEN+5: ++ case OPEN+6: ++ case OPEN+7: ++ case OPEN+8: ++ case OPEN+9: { ++ register int no; ++ register char *save; ++ ++ no = OP(scan) - OPEN; ++ save = g->reginput; ++ ++ if (regmatch(g, next)) { ++ /* ++ * Don't set startp if some later ++ * invocation of the same parentheses ++ * already has. ++ */ ++ if (g->regstartp[no] == NULL) ++ g->regstartp[no] = save; ++ return(1); ++ } else ++ return(0); ++ } ++ break; ++ case CLOSE+1: ++ case CLOSE+2: ++ case CLOSE+3: ++ case CLOSE+4: ++ case CLOSE+5: ++ case CLOSE+6: ++ case CLOSE+7: ++ case CLOSE+8: ++ case CLOSE+9: ++ { ++ register int no; ++ register char *save; ++ ++ no = OP(scan) - CLOSE; ++ save = g->reginput; ++ ++ if (regmatch(g, next)) { ++ /* ++ * Don't set endp if some later ++ * invocation of the same parentheses ++ * already has. ++ */ ++ if (g->regendp[no] == NULL) ++ g->regendp[no] = save; ++ return(1); ++ } else ++ return(0); ++ } ++ break; ++ case BRANCH: { ++ register char *save; ++ ++ if (OP(next) != BRANCH) /* No choice. */ ++ next = OPERAND(scan); /* Avoid recursion. */ ++ else { ++ do { ++ save = g->reginput; ++ if (regmatch(g, OPERAND(scan))) ++ return(1); ++ g->reginput = save; ++ scan = regnext(g, scan); ++ } while (scan != NULL && OP(scan) == BRANCH); ++ return(0); ++ /* NOTREACHED */ ++ } ++ } ++ break; ++ case STAR: ++ case PLUS: { ++ register char nextch; ++ register int no; ++ register char *save; ++ register int min; ++ ++ /* ++ * Lookahead to avoid useless match attempts ++ * when we know what character comes next. ++ */ ++ nextch = '\0'; ++ if (OP(next) == EXACTLY) ++ nextch = *OPERAND(next); ++ min = (OP(scan) == STAR) ? 0 : 1; ++ save = g->reginput; ++ no = regrepeat(g, OPERAND(scan)); ++ while (no >= min) { ++ /* If it could work, try it. */ ++ if (nextch == '\0' || *g->reginput == nextch) ++ if (regmatch(g, next)) ++ return(1); ++ /* Couldn't or didn't -- back up. */ ++ no--; ++ g->reginput = save + no; ++ } ++ return(0); ++ } ++ break; ++ case END: ++ return(1); /* Success! */ ++ break; ++ default: ++ printk("<3>Regexp: memory corruption\n"); ++ return(0); ++ break; ++ } ++ ++ scan = next; ++ } ++ ++ /* ++ * We get here only if there's trouble -- normally "case END" is ++ * the terminating point. ++ */ ++ printk("<3>Regexp: corrupted pointers\n"); ++ return(0); ++} ++ ++/* ++ - regrepeat - repeatedly match something simple, report how many ++ */ ++static int ++regrepeat(struct match_globals *g, char *p) ++{ ++ register int count = 0; ++ register char *scan; ++ register char *opnd; ++ ++ scan = g->reginput; ++ opnd = OPERAND(p); ++ switch (OP(p)) { ++ case ANY: ++ count = strlen(scan); ++ scan += count; ++ break; ++ case EXACTLY: ++ while (*opnd == *scan) { ++ count++; ++ scan++; ++ } ++ break; ++ case ANYOF: ++ while (*scan != '\0' && strchr(opnd, *scan) != NULL) { ++ count++; ++ scan++; ++ } ++ break; ++ case ANYBUT: ++ while (*scan != '\0' && strchr(opnd, *scan) == NULL) { ++ count++; ++ scan++; ++ } ++ break; ++ default: /* Oh dear. Called inappropriately. */ ++ printk("<3>Regexp: internal foulup\n"); ++ count = 0; /* Best compromise. */ ++ break; ++ } ++ g->reginput = scan; ++ ++ return(count); ++} ++ ++/* ++ - regnext - dig the "next" pointer out of a node ++ */ ++static char* ++regnext(struct match_globals *g, char *p) ++{ ++ register int offset; ++ ++ if (p == &g->regdummy) ++ return(NULL); ++ ++ offset = NEXT(p); ++ if (offset == 0) ++ return(NULL); ++ ++ if (OP(p) == BACK) ++ return(p-offset); ++ else ++ return(p+offset); ++} ++ ++#ifdef DEBUG ++ ++STATIC char *regprop(); ++ ++/* ++ - regdump - dump a regexp onto stdout in vaguely comprehensible form ++ */ ++void ++regdump(regexp *r) ++{ ++ register char *s; ++ register char op = EXACTLY; /* Arbitrary non-END op. */ ++ register char *next; ++ /* extern char *strchr(); */ ++ ++ ++ s = r->program + 1; ++ while (op != END) { /* While that wasn't END last time... */ ++ op = OP(s); ++ printf("%2d%s", s-r->program, regprop(s)); /* Where, what. */ ++ next = regnext(s); ++ if (next == NULL) /* Next ptr. */ ++ printf("(0)"); ++ else ++ printf("(%d)", (s-r->program)+(next-s)); ++ s += 3; ++ if (op == ANYOF || op == ANYBUT || op == EXACTLY) { ++ /* Literal string, where present. */ ++ while (*s != '\0') { ++ putchar(*s); ++ s++; ++ } ++ s++; ++ } ++ putchar('\n'); ++ } ++ ++ /* Header fields of interest. */ ++ if (r->regstart != '\0') ++ printf("start `%c' ", r->regstart); ++ if (r->reganch) ++ printf("anchored "); ++ if (r->regmust != NULL) ++ printf("must have \"%s\"", r->regmust); ++ printf("\n"); ++} ++ ++/* ++ - regprop - printable representation of opcode ++ */ ++static char * ++regprop(char *op) ++{ ++#define BUFLEN 50 ++ register char *p; ++ static char buf[BUFLEN]; ++ ++ strcpy(buf, ":"); ++ ++ switch (OP(op)) { ++ case BOL: ++ p = "BOL"; ++ break; ++ case EOL: ++ p = "EOL"; ++ break; ++ case ANY: ++ p = "ANY"; ++ break; ++ case ANYOF: ++ p = "ANYOF"; ++ break; ++ case ANYBUT: ++ p = "ANYBUT"; ++ break; ++ case BRANCH: ++ p = "BRANCH"; ++ break; ++ case EXACTLY: ++ p = "EXACTLY"; ++ break; ++ case NOTHING: ++ p = "NOTHING"; ++ break; ++ case BACK: ++ p = "BACK"; ++ break; ++ case END: ++ p = "END"; ++ break; ++ case OPEN+1: ++ case OPEN+2: ++ case OPEN+3: ++ case OPEN+4: ++ case OPEN+5: ++ case OPEN+6: ++ case OPEN+7: ++ case OPEN+8: ++ case OPEN+9: ++ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "OPEN%d", OP(op)-OPEN); ++ p = NULL; ++ break; ++ case CLOSE+1: ++ case CLOSE+2: ++ case CLOSE+3: ++ case CLOSE+4: ++ case CLOSE+5: ++ case CLOSE+6: ++ case CLOSE+7: ++ case CLOSE+8: ++ case CLOSE+9: ++ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "CLOSE%d", OP(op)-CLOSE); ++ p = NULL; ++ break; ++ case STAR: ++ p = "STAR"; ++ break; ++ case PLUS: ++ p = "PLUS"; ++ break; ++ default: ++ printk("<3>Regexp: corrupted opcode\n"); ++ break; ++ } ++ if (p != NULL) ++ strncat(buf, p, BUFLEN-strlen(buf)); ++ return(buf); ++} ++#endif ++ ++ +diff -urN linux.old/net/ipv4/netfilter/regexp/regexp.h linux.dev/net/ipv4/netfilter/regexp/regexp.h +--- linux.old/net/ipv4/netfilter/regexp/regexp.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/net/ipv4/netfilter/regexp/regexp.h 2007-01-01 05:18:48.000000000 +0100 +@@ -0,0 +1,41 @@ ++/* ++ * Definitions etc. for regexp(3) routines. ++ * ++ * Caveat: this is V8 regexp(3) [actually, a reimplementation thereof], ++ * not the System V one. ++ */ ++ ++#ifndef REGEXP_H ++#define REGEXP_H ++ ++ ++/* ++http://www.opensource.apple.com/darwinsource/10.3/expect-1/expect/expect.h , ++which contains a version of this library, says: ++ ++ * ++ * NSUBEXP must be at least 10, and no greater than 117 or the parser ++ * will not work properly. ++ * ++ ++However, it looks rather like this library is limited to 10. If you think ++otherwise, let us know. ++*/ ++ ++#define NSUBEXP 10 ++typedef struct regexp { ++ char *startp[NSUBEXP]; ++ char *endp[NSUBEXP]; ++ char regstart; /* Internal use only. */ ++ char reganch; /* Internal use only. */ ++ char *regmust; /* Internal use only. */ ++ int regmlen; /* Internal use only. */ ++ char program[1]; /* Unwarranted chumminess with compiler. */ ++} regexp; ++ ++regexp * regcomp(char *exp, int *patternsize); ++int regexec(regexp *prog, char *string); ++void regsub(regexp *prog, char *source, char *dest); ++void regerror(char *s); ++ ++#endif +diff -urN linux.old/net/ipv4/netfilter/regexp/regmagic.h linux.dev/net/ipv4/netfilter/regexp/regmagic.h +--- linux.old/net/ipv4/netfilter/regexp/regmagic.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/net/ipv4/netfilter/regexp/regmagic.h 2007-01-01 05:18:48.000000000 +0100 +@@ -0,0 +1,5 @@ ++/* ++ * The first byte of the regexp internal "program" is actually this magic ++ * number; the start node begins in the second byte. ++ */ ++#define MAGIC 0234 +diff -urN linux.old/net/ipv4/netfilter/regexp/regsub.c linux.dev/net/ipv4/netfilter/regexp/regsub.c +--- linux.old/net/ipv4/netfilter/regexp/regsub.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/net/ipv4/netfilter/regexp/regsub.c 2007-01-01 05:18:48.000000000 +0100 +@@ -0,0 +1,95 @@ ++/* ++ * regsub ++ * @(#)regsub.c 1.3 of 2 April 86 ++ * ++ * Copyright (c) 1986 by University of Toronto. ++ * Written by Henry Spencer. Not derived from licensed software. ++ * ++ * Permission is granted to anyone to use this software for any ++ * purpose on any computer system, and to redistribute it freely, ++ * subject to the following restrictions: ++ * ++ * 1. The author is not responsible for the consequences of use of ++ * this software, no matter how awful, even if they arise ++ * from defects in it. ++ * ++ * 2. The origin of this software must not be misrepresented, either ++ * by explicit claim or by omission. ++ * ++ * 3. Altered versions must be plainly marked as such, and must not ++ * be misrepresented as being the original software. ++ * ++ * ++ * This code was modified by Ethan Sommer to work within the kernel ++ * (it now uses kmalloc etc..) ++ * ++ */ ++#include "regexp.h" ++#include "regmagic.h" ++#include ++ ++ ++#ifndef CHARBITS ++#define UCHARAT(p) ((int)*(unsigned char *)(p)) ++#else ++#define UCHARAT(p) ((int)*(p)&CHARBITS) ++#endif ++ ++#if 0 ++//void regerror(char * s) ++//{ ++// printk("regexp(3): %s", s); ++// /* NOTREACHED */ ++//} ++#endif ++ ++/* ++ - regsub - perform substitutions after a regexp match ++ */ ++void ++regsub(regexp * prog, char * source, char * dest) ++{ ++ register char *src; ++ register char *dst; ++ register char c; ++ register int no; ++ register int len; ++ ++ /* Not necessary and gcc doesn't like it -MLS */ ++ /*extern char *strncpy();*/ ++ ++ if (prog == NULL || source == NULL || dest == NULL) { ++ regerror("NULL parm to regsub"); ++ return; ++ } ++ if (UCHARAT(prog->program) != MAGIC) { ++ regerror("damaged regexp fed to regsub"); ++ return; ++ } ++ ++ src = source; ++ dst = dest; ++ while ((c = *src++) != '\0') { ++ if (c == '&') ++ no = 0; ++ else if (c == '\\' && '0' <= *src && *src <= '9') ++ no = *src++ - '0'; ++ else ++ no = -1; ++ ++ if (no < 0) { /* Ordinary character. */ ++ if (c == '\\' && (*src == '\\' || *src == '&')) ++ c = *src++; ++ *dst++ = c; ++ } else if (prog->startp[no] != NULL && prog->endp[no] != NULL) { ++ len = prog->endp[no] - prog->startp[no]; ++ (void) strncpy(dst, prog->startp[no], len); ++ dst += len; ++ if (len != 0 && *(dst-1) == '\0') { /* strncpy hit NUL. */ ++ regerror("damaged match string"); ++ return; ++ } ++ } ++ } ++ *dst++ = '\0'; ++} diff --git a/target/linux/generic-2.6/patches/101-ipp2p_0.8.1rc1.patch b/target/linux/generic-2.6/patches/101-ipp2p_0.8.1rc1.patch deleted file mode 100644 index e03f4d5676..0000000000 --- a/target/linux/generic-2.6/patches/101-ipp2p_0.8.1rc1.patch +++ /dev/null @@ -1,948 +0,0 @@ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_ipp2p.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_ipp2p.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_ipp2p.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_ipp2p.h 2006-12-14 03:13:39.000000000 +0100 -@@ -0,0 +1,31 @@ -+#ifndef __IPT_IPP2P_H -+#define __IPT_IPP2P_H -+#define IPP2P_VERSION "0.8.1_rc1" -+ -+struct ipt_p2p_info { -+ int cmd; -+ int debug; -+}; -+ -+#endif //__IPT_IPP2P_H -+ -+#define SHORT_HAND_IPP2P 1 /* --ipp2p switch*/ -+//#define SHORT_HAND_DATA 4 /* --ipp2p-data switch*/ -+#define SHORT_HAND_NONE 5 /* no short hand*/ -+ -+#define IPP2P_EDK (1 << 1) -+#define IPP2P_DATA_KAZAA (1 << 2) -+#define IPP2P_DATA_EDK (1 << 3) -+#define IPP2P_DATA_DC (1 << 4) -+#define IPP2P_DC (1 << 5) -+#define IPP2P_DATA_GNU (1 << 6) -+#define IPP2P_GNU (1 << 7) -+#define IPP2P_KAZAA (1 << 8) -+#define IPP2P_BIT (1 << 9) -+#define IPP2P_APPLE (1 << 10) -+#define IPP2P_SOUL (1 << 11) -+#define IPP2P_WINMX (1 << 12) -+#define IPP2P_ARES (1 << 13) -+#define IPP2P_MUTE (1 << 14) -+#define IPP2P_WASTE (1 << 15) -+#define IPP2P_XDCC (1 << 16) -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_ipp2p.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_ipp2p.c ---- linux-2.6.19.old/net/ipv4/netfilter/ipt_ipp2p.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_ipp2p.c 2006-12-14 03:13:39.000000000 +0100 -@@ -0,0 +1,881 @@ -+#if defined(MODVERSIONS) -+#include -+#endif -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#define get_u8(X,O) (*(__u8 *)(X + O)) -+#define get_u16(X,O) (*(__u16 *)(X + O)) -+#define get_u32(X,O) (*(__u32 *)(X + O)) -+ -+MODULE_AUTHOR("Eicke Friedrich/Klaus Degner "); -+MODULE_DESCRIPTION("An extension to iptables to identify P2P traffic."); -+MODULE_LICENSE("GPL"); -+ -+ -+/*Search for UDP eDonkey/eMule/Kad commands*/ -+int -+udp_search_edk (unsigned char *haystack, int packet_len) -+{ -+ unsigned char *t = haystack; -+ t += 8; -+ -+ switch (t[0]) { -+ case 0xe3: -+ { /*edonkey*/ -+ switch (t[1]) -+ { -+ /* client -> server status request */ -+ case 0x96: -+ if (packet_len == 14) return ((IPP2P_EDK * 100) + 50); -+ break; -+ /* server -> client status request */ -+ case 0x97: if (packet_len == 42) return ((IPP2P_EDK * 100) + 51); -+ break; -+ /* server description request */ -+ /* e3 2a ff f0 .. | size == 6 */ -+ case 0xa2: if ( (packet_len == 14) && ( get_u16(t,2) == __constant_htons(0xfff0) ) ) return ((IPP2P_EDK * 100) + 52); -+ break; -+ /* server description response */ -+ /* e3 a3 ff f0 .. | size > 40 && size < 200 */ -+ //case 0xa3: return ((IPP2P_EDK * 100) + 53); -+ // break; -+ case 0x9a: if (packet_len==26) return ((IPP2P_EDK * 100) + 54); -+ break; -+ -+ case 0x92: if (packet_len==18) return ((IPP2P_EDK * 100) + 55); -+ break; -+ } -+ break; -+ } -+ case 0xe4: -+ { -+ switch (t[1]) -+ { -+ /* e4 20 .. | size == 43 */ -+ case 0x20: if ((packet_len == 43) && (t[2] != 0x00) && (t[34] != 0x00)) return ((IPP2P_EDK * 100) + 60); -+ break; -+ /* e4 00 .. 00 | size == 35 ? */ -+ case 0x00: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 61); -+ break; -+ /* e4 10 .. 00 | size == 35 ? */ -+ case 0x10: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 62); -+ break; -+ /* e4 18 .. 00 | size == 35 ? */ -+ case 0x18: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 63); -+ break; -+ /* e4 52 .. | size = 44 */ -+ case 0x52: if (packet_len == 44 ) return ((IPP2P_EDK * 100) + 64); -+ break; -+ /* e4 58 .. | size == 6 */ -+ case 0x58: if (packet_len == 14 ) return ((IPP2P_EDK * 100) + 65); -+ break; -+ /* e4 59 .. | size == 2 */ -+ case 0x59: if (packet_len == 10 )return ((IPP2P_EDK * 100) + 66); -+ break; -+ /* e4 28 .. | packet_len == 52,77,102,127... */ -+ case 0x28: if (((packet_len-52) % 25) == 0) return ((IPP2P_EDK * 100) + 67); -+ break; -+ /* e4 50 xx xx | size == 4 */ -+ case 0x50: if (packet_len == 12) return ((IPP2P_EDK * 100) + 68); -+ break; -+ /* e4 40 xx xx | size == 48 */ -+ case 0x40: if (packet_len == 56) return ((IPP2P_EDK * 100) + 69); -+ break; -+ } -+ break; -+ } -+ } /* end of switch (t[0]) */ -+ return 0; -+}/*udp_search_edk*/ -+ -+ -+/*Search for UDP Gnutella commands*/ -+int -+udp_search_gnu (unsigned char *haystack, int packet_len) -+{ -+ unsigned char *t = haystack; -+ t += 8; -+ -+ if (memcmp(t, "GND", 3) == 0) return ((IPP2P_GNU * 100) + 51); -+ if (memcmp(t, "GNUTELLA ", 9) == 0) return ((IPP2P_GNU * 100) + 52); -+ return 0; -+}/*udp_search_gnu*/ -+ -+ -+/*Search for UDP KaZaA commands*/ -+int -+udp_search_kazaa (unsigned char *haystack, int packet_len) -+{ -+ unsigned char *t = haystack; -+ -+ if (t[packet_len-1] == 0x00){ -+ t += (packet_len - 6); -+ if (memcmp(t, "KaZaA", 5) == 0) return (IPP2P_KAZAA * 100 +50); -+ } -+ -+ return 0; -+}/*udp_search_kazaa*/ -+ -+/*Search for UDP DirectConnect commands*/ -+int -+udp_search_directconnect (unsigned char *haystack, int packet_len) -+{ -+ unsigned char *t = haystack; -+ if ((*(t + 8) == 0x24) && (*(t + packet_len - 1) == 0x7c)) { -+ t+=8; -+ if (memcmp(t, "SR ", 3) == 0) return ((IPP2P_DC * 100) + 60); -+ if (memcmp(t, "Ping ", 5) == 0) return ((IPP2P_DC * 100) + 61); -+ } -+ return 0; -+}/*udp_search_directconnect*/ -+ -+ -+ -+/*Search for UDP BitTorrent commands*/ -+int -+udp_search_bit (unsigned char *haystack, int packet_len) -+{ -+ switch(packet_len) -+ { -+ case 24: -+ /* ^ 00 00 04 17 27 10 19 80 */ -+ if ((ntohl(get_u32(haystack, 8)) == 0x00000417) && (ntohl(get_u32(haystack, 12)) == 0x27101980)) -+ return (IPP2P_BIT * 100 + 50); -+ break; -+ case 44: -+ if (get_u32(haystack, 16) == __constant_htonl(0x00000400) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) -+ return (IPP2P_BIT * 100 + 51); -+ if (get_u32(haystack, 16) == __constant_htonl(0x00000400)) -+ return (IPP2P_BIT * 100 + 61); -+ break; -+ case 65: -+ if (get_u32(haystack, 16) == __constant_htonl(0x00000404) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) -+ return (IPP2P_BIT * 100 + 52); -+ if (get_u32(haystack, 16) == __constant_htonl(0x00000404)) -+ return (IPP2P_BIT * 100 + 62); -+ break; -+ case 67: -+ if (get_u32(haystack, 16) == __constant_htonl(0x00000406) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) -+ return (IPP2P_BIT * 100 + 53); -+ if (get_u32(haystack, 16) == __constant_htonl(0x00000406)) -+ return (IPP2P_BIT * 100 + 63); -+ break; -+ case 211: -+ if (get_u32(haystack, 8) == __constant_htonl(0x00000405)) -+ return (IPP2P_BIT * 100 + 54); -+ break; -+ case 29: -+ if ((get_u32(haystack, 8) == __constant_htonl(0x00000401))) -+ return (IPP2P_BIT * 100 + 55); -+ break; -+ case 52: -+ if (get_u32(haystack,8) == __constant_htonl(0x00000827) && -+ get_u32(haystack,12) == __constant_htonl(0x37502950)) -+ return (IPP2P_BIT * 100 + 80); -+ break; -+ default: -+ /* this packet does not have a constant size */ -+ if (packet_len >= 40 && get_u32(haystack, 16) == __constant_htonl(0x00000402) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) -+ return (IPP2P_BIT * 100 + 56); -+ break; -+ } -+ -+ /* some extra-bitcomet rules: -+ * "d1:" [a|r] "d2:id20:" -+ */ -+ if (packet_len > 30 && get_u8(haystack, 8) == 'd' && get_u8(haystack, 9) == '1' && get_u8(haystack, 10) == ':' ) -+ { -+ if (get_u8(haystack, 11) == 'a' || get_u8(haystack, 11) == 'r') -+ { -+ if (memcmp(haystack+12,"d2:id20:",8)==0) -+ return (IPP2P_BIT * 100 + 57); -+ } -+ } -+ -+#if 0 -+ /* bitlord rules */ -+ /* packetlen must be bigger than 40 */ -+ /* first 4 bytes are zero */ -+ if (packet_len > 40 && get_u32(haystack, 8) == 0x00000000) -+ { -+ /* first rule: 00 00 00 00 01 00 00 xx xx xx xx 00 00 00 00*/ -+ if (get_u32(haystack, 12) == 0x00000000 && -+ get_u32(haystack, 16) == 0x00010000 && -+ get_u32(haystack, 24) == 0x00000000 ) -+ return (IPP2P_BIT * 100 + 71); -+ -+ /* 00 01 00 00 0d 00 00 xx xx xx xx 00 00 00 00*/ -+ if (get_u32(haystack, 12) == 0x00000001 && -+ get_u32(haystack, 16) == 0x000d0000 && -+ get_u32(haystack, 24) == 0x00000000 ) -+ return (IPP2P_BIT * 100 + 71); -+ -+ -+ } -+#endif -+ -+ return 0; -+}/*udp_search_bit*/ -+ -+ -+ -+/*Search for Ares commands*/ -+//#define IPP2P_DEBUG_ARES -+int -+search_ares (const unsigned char *payload, const u16 plen) -+//int search_ares (unsigned char *haystack, int packet_len, int head_len) -+{ -+// const unsigned char *t = haystack + head_len; -+ -+ /* all ares packets start with */ -+ if (payload[1] == 0 && (plen - payload[0]) == 3) -+ { -+ switch (payload[2]) -+ { -+ case 0x5a: -+ /* ares connect */ -+ if ( plen == 6 && payload[5] == 0x05 ) return ((IPP2P_ARES * 100) + 1); -+ break; -+ case 0x09: -+ /* ares search, min 3 chars --> 14 bytes -+ * lets define a search can be up to 30 chars --> max 34 bytes -+ */ -+ if ( plen >= 14 && plen <= 34 ) return ((IPP2P_ARES * 100) + 1); -+ break; -+#ifdef IPP2P_DEBUG_ARES -+ default: -+ printk(KERN_DEBUG "Unknown Ares command %x recognized, len: %u \n", (unsigned int) payload[2],plen); -+#endif /* IPP2P_DEBUG_ARES */ -+ } -+ } -+ -+#if 0 -+ /* found connect packet: 03 00 5a 04 03 05 */ -+ /* new version ares 1.8: 03 00 5a xx xx 05 */ -+ if ((plen) == 6){ /* possible connect command*/ -+ if ((payload[0] == 0x03) && (payload[1] == 0x00) && (payload[2] == 0x5a) && (payload[5] == 0x05)) -+ return ((IPP2P_ARES * 100) + 1); -+ } -+ if ((plen) == 60){ /* possible download command*/ -+ if ((payload[59] == 0x0a) && (payload[58] == 0x0a)){ -+ if (memcmp(t, "PUSH SHA1:", 10) == 0) /* found download command */ -+ return ((IPP2P_ARES * 100) + 2); -+ } -+ } -+#endif -+ -+ return 0; -+} /*search_ares*/ -+ -+/*Search for SoulSeek commands*/ -+int -+search_soul (const unsigned char *payload, const u16 plen) -+{ -+//#define IPP2P_DEBUG_SOUL -+ /* match: xx xx xx xx | xx = sizeof(payload) - 4 */ -+ if (get_u32(payload, 0) == (plen - 4)){ -+ const __u32 m=get_u32(payload, 4); -+ /* match 00 yy yy 00, yy can be everything */ -+ if ( get_u8(payload, 4) == 0x00 && get_u8(payload, 7) == 0x00 ) -+ { -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "0: Soulseek command 0x%x recognized\n",get_u32(payload, 4)); -+#endif /* IPP2P_DEBUG_SOUL */ -+ return ((IPP2P_SOUL * 100) + 1); -+ } -+ -+ /* next match: 01 yy 00 00 | yy can be everything */ -+ if ( get_u8(payload, 4) == 0x01 && get_u16(payload, 6) == 0x0000 ) -+ { -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "1: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); -+#endif /* IPP2P_DEBUG_SOUL */ -+ return ((IPP2P_SOUL * 100) + 2); -+ } -+ -+ /* other soulseek commandos are: 1-5,7,9,13-18,22,23,26,28,35-37,40-46,50,51,60,62-69,91,92,1001 */ -+ /* try to do this in an intelligent way */ -+ /* get all small commandos */ -+ switch(m) -+ { -+ case 7: -+ case 9: -+ case 22: -+ case 23: -+ case 26: -+ case 28: -+ case 50: -+ case 51: -+ case 60: -+ case 91: -+ case 92: -+ case 1001: -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "2: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); -+#endif /* IPP2P_DEBUG_SOUL */ -+ return ((IPP2P_SOUL * 100) + 3); -+ } -+ -+ if (m > 0 && m < 6 ) -+ { -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "3: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); -+#endif /* IPP2P_DEBUG_SOUL */ -+ return ((IPP2P_SOUL * 100) + 4); -+ } -+ if (m > 12 && m < 19 ) -+ { -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "4: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); -+#endif /* IPP2P_DEBUG_SOUL */ -+ return ((IPP2P_SOUL * 100) + 5); -+ } -+ -+ if (m > 34 && m < 38 ) -+ { -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "5: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); -+#endif /* IPP2P_DEBUG_SOUL */ -+ return ((IPP2P_SOUL * 100) + 6); -+ } -+ -+ if (m > 39 && m < 47 ) -+ { -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "6: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); -+#endif /* IPP2P_DEBUG_SOUL */ -+ return ((IPP2P_SOUL * 100) + 7); -+ } -+ -+ if (m > 61 && m < 70 ) -+ { -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "7: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); -+#endif /* IPP2P_DEBUG_SOUL */ -+ return ((IPP2P_SOUL * 100) + 8); -+ } -+ -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "unknown SOULSEEK command: 0x%x, first 16 bit: 0x%x, first 8 bit: 0x%x ,soulseek ???\n",get_u32(payload, 4),get_u16(payload, 4) >> 16,get_u8(payload, 4) >> 24); -+#endif /* IPP2P_DEBUG_SOUL */ -+ } -+ -+ /* match 14 00 00 00 01 yy 00 00 00 STRING(YY) 01 00 00 00 00 46|50 00 00 00 00 */ -+ /* without size at the beginning !!! */ -+ if ( get_u32(payload, 0) == 0x14 && get_u8(payload, 4) == 0x01 ) -+ { -+ __u32 y=get_u32(payload, 5); -+ /* we need 19 chars + string */ -+ if ( (y + 19) <= (plen) ) -+ { -+ const unsigned char *w=payload+9+y; -+ if (get_u32(w, 0) == 0x01 && ( get_u16(w, 4) == 0x4600 || get_u16(w, 4) == 0x5000) && get_u32(w, 6) == 0x00); -+#ifdef IPP2P_DEBUG_SOUL -+ printk(KERN_DEBUG "Soulssek special client command recognized\n"); -+#endif /* IPP2P_DEBUG_SOUL */ -+ return ((IPP2P_SOUL * 100) + 9); -+ } -+ } -+ return 0; -+} -+ -+ -+/*Search for WinMX commands*/ -+int -+search_winmx (const unsigned char *payload, const u16 plen) -+{ -+//#define IPP2P_DEBUG_WINMX -+ if (((plen) == 4) && (memcmp(payload, "SEND", 4) == 0)) return ((IPP2P_WINMX * 100) + 1); -+ if (((plen) == 3) && (memcmp(payload, "GET", 3) == 0)) return ((IPP2P_WINMX * 100) + 2); -+ //if (packet_len < (head_len + 10)) return 0; -+ if (plen < 10) return 0; -+ -+ if ((memcmp(payload, "SEND", 4) == 0) || (memcmp(payload, "GET", 3) == 0)){ -+ u16 c=4; -+ const u16 end=plen-2; -+ u8 count=0; -+ while (c < end) -+ { -+ if (payload[c]== 0x20 && payload[c+1] == 0x22) -+ { -+ c++; -+ count++; -+ if (count>=2) return ((IPP2P_WINMX * 100) + 3); -+ } -+ c++; -+ } -+ } -+ -+ if ( plen == 149 && payload[0] == '8' ) -+ { -+#ifdef IPP2P_DEBUG_WINMX -+ printk(KERN_INFO "maybe WinMX\n"); -+#endif -+ if (get_u32(payload,17) == 0 && get_u32(payload,21) == 0 && get_u32(payload,25) == 0 && -+// get_u32(payload,33) == __constant_htonl(0x71182b1a) && get_u32(payload,37) == __constant_htonl(0x05050000) && -+// get_u32(payload,133) == __constant_htonl(0x31097edf) && get_u32(payload,145) == __constant_htonl(0xdcb8f792)) -+ get_u16(payload,39) == 0 && get_u16(payload,135) == __constant_htons(0x7edf) && get_u16(payload,147) == __constant_htons(0xf792)) -+ -+ { -+#ifdef IPP2P_DEBUG_WINMX -+ printk(KERN_INFO "got WinMX\n"); -+#endif -+ return ((IPP2P_WINMX * 100) + 4); -+ } -+ } -+ return 0; -+} /*search_winmx*/ -+ -+ -+/*Search for appleJuice commands*/ -+int -+search_apple (const unsigned char *payload, const u16 plen) -+{ -+ if ( (plen > 7) && (payload[6] == 0x0d) && (payload[7] == 0x0a) && (memcmp(payload, "ajprot", 6) == 0)) return (IPP2P_APPLE * 100); -+ -+ return 0; -+} -+ -+ -+/*Search for BitTorrent commands*/ -+int -+search_bittorrent (const unsigned char *payload, const u16 plen) -+{ -+ if (plen > 20) -+ { -+ /* test for match 0x13+"BitTorrent protocol" */ -+ if (payload[0] == 0x13) -+ { -+ if (memcmp(payload+1, "BitTorrent protocol", 19) == 0) return (IPP2P_BIT * 100); -+ } -+ -+ /* get tracker commandos, all starts with GET / -+ * then it can follow: scrape| announce -+ * and then ?hash_info= -+ */ -+ if (memcmp(payload,"GET /",5) == 0) -+ { -+ /* message scrape */ -+ if ( memcmp(payload+5,"scrape?info_hash=",17)==0 ) return (IPP2P_BIT * 100 + 1); -+ /* message announce */ -+ if ( memcmp(payload+5,"announce?info_hash=",19)==0 ) return (IPP2P_BIT * 100 + 2); -+ } -+ } -+ else -+ { -+ /* bitcomet encryptes the first packet, so we have to detect another -+ * one later in the flow */ -+ /* first try failed, too many missdetections */ -+ //if ( size == 5 && get_u32(t,0) == __constant_htonl(1) && t[4] < 3) return (IPP2P_BIT * 100 + 3); -+ -+ /* second try: block request packets */ -+ if ( plen == 17 && get_u32(payload,0) == __constant_htonl(0x0d) && payload[4] == 0x06 && get_u32(payload,13) == __constant_htonl(0x4000) ) return (IPP2P_BIT * 100 + 3); -+ } -+ -+ return 0; -+} -+ -+ -+ -+/*check for Kazaa get command*/ -+int -+search_kazaa (const unsigned char *payload, const u16 plen) -+ -+{ -+ if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a) && memcmp(payload, "GET /.hash=", 11) == 0) -+ return (IPP2P_DATA_KAZAA * 100); -+ -+ return 0; -+} -+ -+ -+/*check for gnutella get command*/ -+int -+search_gnu (const unsigned char *payload, const u16 plen) -+{ -+ if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a)) -+ { -+ if (memcmp(payload, "GET /get/", 9) == 0) return ((IPP2P_DATA_GNU * 100) + 1); -+ if (memcmp(payload, "GET /uri-res/", 13) == 0) return ((IPP2P_DATA_GNU * 100) + 2); -+ } -+ return 0; -+} -+ -+ -+/*check for gnutella get commands and other typical data*/ -+int -+search_all_gnu (const unsigned char *payload, const u16 plen) -+{ -+ -+ if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a)) -+ { -+ -+ if (memcmp(payload, "GNUTELLA CONNECT/", 17) == 0) return ((IPP2P_GNU * 100) + 1); -+ if (memcmp(payload, "GNUTELLA/", 9) == 0) return ((IPP2P_GNU * 100) + 2); -+ -+ -+ if ((memcmp(payload, "GET /get/", 9) == 0) || (memcmp(payload, "GET /uri-res/", 13) == 0)) -+ { -+ u16 c=8; -+ const u16 end=plen-22; -+ while (c < end) { -+ if ( payload[c] == 0x0a && payload[c+1] == 0x0d && ((memcmp(&payload[c+2], "X-Gnutella-", 11) == 0) || (memcmp(&payload[c+2], "X-Queue:", 8) == 0))) -+ return ((IPP2P_GNU * 100) + 3); -+ c++; -+ } -+ } -+ } -+ return 0; -+} -+ -+ -+/*check for KaZaA download commands and other typical data*/ -+int -+search_all_kazaa (const unsigned char *payload, const u16 plen) -+{ -+ if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a)) -+ { -+ -+ if (memcmp(payload, "GIVE ", 5) == 0) return ((IPP2P_KAZAA * 100) + 1); -+ -+ if (memcmp(payload, "GET /", 5) == 0) { -+ u16 c = 8; -+ const u16 end=plen-22; -+ while (c < end) { -+ if ( payload[c] == 0x0a && payload[c+1] == 0x0d && ((memcmp(&payload[c+2], "X-Kazaa-Username: ", 18) == 0) || (memcmp(&payload[c+2], "User-Agent: PeerEnabler/", 24) == 0))) -+ return ((IPP2P_KAZAA * 100) + 2); -+ c++; -+ } -+ } -+ } -+ return 0; -+} -+ -+/*fast check for edonkey file segment transfer command*/ -+int -+search_edk (const unsigned char *payload, const u16 plen) -+{ -+ if (payload[0] != 0xe3) -+ return 0; -+ else { -+ if (payload[5] == 0x47) -+ return (IPP2P_DATA_EDK * 100); -+ else -+ return 0; -+ } -+} -+ -+ -+ -+/*intensive but slower search for some edonkey packets including size-check*/ -+int -+search_all_edk (const unsigned char *payload, const u16 plen) -+{ -+ if (payload[0] != 0xe3) -+ return 0; -+ else { -+ //t += head_len; -+ const u16 cmd = get_u16(payload, 1); -+ if (cmd == (plen - 5)) { -+ switch (payload[5]) { -+ case 0x01: return ((IPP2P_EDK * 100) + 1); /*Client: hello or Server:hello*/ -+ case 0x4c: return ((IPP2P_EDK * 100) + 9); /*Client: Hello-Answer*/ -+ } -+ } -+ return 0; -+ } -+} -+ -+ -+/*fast check for Direct Connect send command*/ -+int -+search_dc (const unsigned char *payload, const u16 plen) -+{ -+ -+ if (payload[0] != 0x24 ) -+ return 0; -+ else { -+ if (memcmp(&payload[1], "Send|", 5) == 0) -+ return (IPP2P_DATA_DC * 100); -+ else -+ return 0; -+ } -+ -+} -+ -+ -+/*intensive but slower check for all direct connect packets*/ -+int -+search_all_dc (const unsigned char *payload, const u16 plen) -+{ -+// unsigned char *t = haystack; -+ -+ if (payload[0] == 0x24 && payload[plen-1] == 0x7c) -+ { -+ const unsigned char *t=&payload[1]; -+ /* Client-Hub-Protocol */ -+ if (memcmp(t, "Lock ", 5) == 0) return ((IPP2P_DC * 100) + 1); -+ /* Client-Client-Protocol, some are already recognized by client-hub (like lock) */ -+ if (memcmp(t, "MyNick ", 7) == 0) return ((IPP2P_DC * 100) + 38); -+ } -+ return 0; -+} -+ -+/*check for mute*/ -+int -+search_mute (const unsigned char *payload, const u16 plen) -+{ -+ if ( plen == 209 || plen == 345 || plen == 473 || plen == 609 || plen == 1121 ) -+ { -+ //printk(KERN_DEBUG "size hit: %u",size); -+ if (memcmp(payload,"PublicKey: ",11) == 0 ) -+ { -+ return ((IPP2P_MUTE * 100) + 0); -+ -+/* if (memcmp(t+size-14,"\x0aEndPublicKey\x0a",14) == 0) -+ { -+ printk(KERN_DEBUG "end pubic key hit: %u",size); -+ -+ }*/ -+ } -+ } -+ return 0; -+} -+ -+ -+/* check for xdcc */ -+int -+search_xdcc (const unsigned char *payload, const u16 plen) -+{ -+ /* search in small packets only */ -+ if (plen > 20 && plen < 200 && payload[plen-1] == 0x0a && payload[plen-2] == 0x0d && memcmp(payload,"PRIVMSG ",8) == 0) -+ { -+ -+ u16 x=10; -+ const u16 end=plen - 13; -+ -+ /* is seems to be a irc private massage, chedck for xdcc command */ -+ while (x < end) -+ { -+ if (payload[x] == ':') -+ { -+ if ( memcmp(&payload[x+1],"xdcc send #",11) == 0 ) -+ return ((IPP2P_XDCC * 100) + 0); -+ } -+ x++; -+ } -+ } -+ return 0; -+} -+ -+/* search for waste */ -+int search_waste(const unsigned char *payload, const u16 plen) -+{ -+ if ( plen >= 8 && memcmp(payload,"GET.sha1:",9) == 0) -+ return ((IPP2P_WASTE * 100) + 0); -+ -+ return 0; -+} -+ -+ -+static struct { -+ int command; -+ __u8 short_hand; /*for fucntions included in short hands*/ -+ int packet_len; -+ int (*function_name) (const unsigned char *, const u16); -+} matchlist[] = { -+ {IPP2P_EDK,SHORT_HAND_IPP2P,20, &search_all_edk}, -+// {IPP2P_DATA_KAZAA,SHORT_HAND_DATA,200, &search_kazaa}, -+// {IPP2P_DATA_EDK,SHORT_HAND_DATA,60, &search_edk}, -+// {IPP2P_DATA_DC,SHORT_HAND_DATA,26, &search_dc}, -+ {IPP2P_DC,SHORT_HAND_IPP2P,5, search_all_dc}, -+// {IPP2P_DATA_GNU,SHORT_HAND_DATA,40, &search_gnu}, -+ {IPP2P_GNU,SHORT_HAND_IPP2P,5, &search_all_gnu}, -+ {IPP2P_KAZAA,SHORT_HAND_IPP2P,5, &search_all_kazaa}, -+ {IPP2P_BIT,SHORT_HAND_IPP2P,20, &search_bittorrent}, -+ {IPP2P_APPLE,SHORT_HAND_IPP2P,5, &search_apple}, -+ {IPP2P_SOUL,SHORT_HAND_IPP2P,5, &search_soul}, -+ {IPP2P_WINMX,SHORT_HAND_IPP2P,2, &search_winmx}, -+ {IPP2P_ARES,SHORT_HAND_IPP2P,5, &search_ares}, -+ {IPP2P_MUTE,SHORT_HAND_NONE,200, &search_mute}, -+ {IPP2P_WASTE,SHORT_HAND_NONE,5, &search_waste}, -+ {IPP2P_XDCC,SHORT_HAND_NONE,5, &search_xdcc}, -+ {0,0,0,NULL} -+}; -+ -+ -+static struct { -+ int command; -+ __u8 short_hand; /*for fucntions included in short hands*/ -+ int packet_len; -+ int (*function_name) (unsigned char *, int); -+} udp_list[] = { -+ {IPP2P_KAZAA,SHORT_HAND_IPP2P,14, &udp_search_kazaa}, -+ {IPP2P_BIT,SHORT_HAND_IPP2P,23, &udp_search_bit}, -+ {IPP2P_GNU,SHORT_HAND_IPP2P,11, &udp_search_gnu}, -+ {IPP2P_EDK,SHORT_HAND_IPP2P,9, &udp_search_edk}, -+ {IPP2P_DC,SHORT_HAND_IPP2P,12, &udp_search_directconnect}, -+ {0,0,0,NULL} -+}; -+ -+ -+static int -+match(const struct sk_buff *skb, -+ const struct net_device *in, -+ const struct net_device *out, -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18) -+ const struct xt_match *match, -+#endif -+ const void *matchinfo, -+ int offset, -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18) -+ unsigned int protoff, -+#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) -+ const void *hdr, -+ u_int16_t datalen, -+#endif -+ int *hotdrop) -+{ -+ const struct ipt_p2p_info *info = matchinfo; -+ unsigned char *haystack; -+ struct iphdr *ip = skb->nh.iph; -+ int p2p_result = 0, i = 0; -+// int head_len; -+ int hlen = ntohs(ip->tot_len)-(ip->ihl*4); /*hlen = packet-data length*/ -+ -+ /*must not be a fragment*/ -+ if (offset) { -+ if (info->debug) printk("IPP2P.match: offset found %i \n",offset); -+ return 0; -+ } -+ -+ /*make sure that skb is linear*/ -+ if(skb_is_nonlinear(skb)){ -+ if (info->debug) printk("IPP2P.match: nonlinear skb found\n"); -+ return 0; -+ } -+ -+ -+ haystack=(char *)ip+(ip->ihl*4); /*haystack = packet data*/ -+ -+ switch (ip->protocol){ -+ case IPPROTO_TCP: /*what to do with a TCP packet*/ -+ { -+ struct tcphdr *tcph = (void *) ip + ip->ihl * 4; -+ -+ if (tcph->fin) return 0; /*if FIN bit is set bail out*/ -+ if (tcph->syn) return 0; /*if SYN bit is set bail out*/ -+ if (tcph->rst) return 0; /*if RST bit is set bail out*/ -+ -+ haystack += tcph->doff * 4; /*get TCP-Header-Size*/ -+ hlen -= tcph->doff * 4; -+ while (matchlist[i].command) { -+ if ((((info->cmd & matchlist[i].command) == matchlist[i].command) || -+ ((info->cmd & matchlist[i].short_hand) == matchlist[i].short_hand)) && -+ (hlen > matchlist[i].packet_len)) { -+ p2p_result = matchlist[i].function_name(haystack, hlen); -+ if (p2p_result) -+ { -+ if (info->debug) printk("IPP2P.debug:TCP-match: %i from: %u.%u.%u.%u:%i to: %u.%u.%u.%u:%i Length: %i\n", -+ p2p_result, NIPQUAD(ip->saddr),ntohs(tcph->source), NIPQUAD(ip->daddr),ntohs(tcph->dest),hlen); -+ return p2p_result; -+ } -+ } -+ i++; -+ } -+ return p2p_result; -+ } -+ -+ case IPPROTO_UDP: /*what to do with an UDP packet*/ -+ { -+ struct udphdr *udph = (void *) ip + ip->ihl * 4; -+ -+ while (udp_list[i].command){ -+ if ((((info->cmd & udp_list[i].command) == udp_list[i].command) || -+ ((info->cmd & udp_list[i].short_hand) == udp_list[i].short_hand)) && -+ (hlen > udp_list[i].packet_len)) { -+ p2p_result = udp_list[i].function_name(haystack, hlen); -+ if (p2p_result){ -+ if (info->debug) printk("IPP2P.debug:UDP-match: %i from: %u.%u.%u.%u:%i to: %u.%u.%u.%u:%i Length: %i\n", -+ p2p_result, NIPQUAD(ip->saddr),ntohs(udph->source), NIPQUAD(ip->daddr),ntohs(udph->dest),hlen); -+ return p2p_result; -+ } -+ } -+ i++; -+ } -+ return p2p_result; -+ } -+ -+ default: return 0; -+ } -+} -+ -+ -+ -+static int -+checkentry(const char *tablename, -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18) -+ const void *ip, -+ const struct xt_match *match, -+#else -+ const struct ipt_ip *ip, -+#endif -+ void *matchinfo, -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) -+ unsigned int matchsize, -+#endif -+ unsigned int hook_mask) -+{ -+ /* Must specify -p tcp */ -+/* if (ip->proto != IPPROTO_TCP || (ip->invflags & IPT_INV_PROTO)) { -+ * printk("ipp2p: Only works on TCP packets, use -p tcp\n"); -+ * return 0; -+ * }*/ -+ return 1; -+} -+ -+ -+ -+ -+static struct ipt_match ipp2p_match = { -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) -+ { NULL, NULL }, -+ "ipp2p", -+ &match, -+ &checkentry, -+ NULL, -+ THIS_MODULE -+#endif -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) -+ .name = "ipp2p", -+ .match = &match, -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18) -+ .matchsize = sizeof(struct ipt_p2p_info), -+#endif -+ .checkentry = &checkentry, -+ .me = THIS_MODULE, -+#endif -+}; -+ -+ -+static int __init init(void) -+{ -+ printk(KERN_INFO "IPP2P v%s loading\n", IPP2P_VERSION); -+ return ipt_register_match(&ipp2p_match); -+} -+ -+static void __exit fini(void) -+{ -+ ipt_unregister_match(&ipp2p_match); -+ printk(KERN_INFO "IPP2P v%s unloaded\n", IPP2P_VERSION); -+} -+ -+module_init(init); -+module_exit(fini); -+ -+ -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig ---- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:39.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:39.000000000 +0100 -@@ -248,6 +248,12 @@ - - To compile it as a module, choose M here. If unsure, say N. - -+config IP_NF_MATCH_IPP2P -+ tristate "IPP2P" -+ depends on IP_NF_IPTABLES -+ help -+ Module for matching traffic of various Peer-to-Peer applications -+ - config IP_NF_MATCH_TOS - tristate "TOS match support" - depends on IP_NF_IPTABLES -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile ---- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:39.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:39.000000000 +0100 -@@ -62,7 +62,7 @@ - obj-$(CONFIG_IP_NF_MATCH_AH) += ipt_ah.o - obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o - obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ipt_addrtype.o -- -+obj-$(CONFIG_IP_NF_MATCH_IPP2P) += ipt_ipp2p.o - obj-$(CONFIG_IP_NF_MATCH_LAYER7) += ipt_layer7.o - - # targets diff --git a/target/linux/generic-2.6/patches/101-netfilter_layer7_pktmatch.patch b/target/linux/generic-2.6/patches/101-netfilter_layer7_pktmatch.patch new file mode 100644 index 0000000000..3d1e4819d6 --- /dev/null +++ b/target/linux/generic-2.6/patches/101-netfilter_layer7_pktmatch.patch @@ -0,0 +1,108 @@ +diff -ur linux.dev/include/linux/netfilter_ipv4/ipt_layer7.h linux.dev2/include/linux/netfilter_ipv4/ipt_layer7.h +--- linux.dev/include/linux/netfilter_ipv4/ipt_layer7.h 2007-01-01 05:18:48.000000000 +0100 ++++ linux.dev2/include/linux/netfilter_ipv4/ipt_layer7.h 2007-01-01 05:30:46.000000000 +0100 +@@ -21,6 +21,7 @@ + char protocol[MAX_PROTOCOL_LEN]; + char invert:1; + char pattern[MAX_PATTERN_LEN]; ++ char pkt; + }; + + #endif /* _IPT_LAYER7_H */ +diff -ur linux.dev/net/ipv4/netfilter/ipt_layer7.c linux.dev2/net/ipv4/netfilter/ipt_layer7.c +--- linux.dev/net/ipv4/netfilter/ipt_layer7.c 2007-01-01 05:18:48.000000000 +0100 ++++ linux.dev2/net/ipv4/netfilter/ipt_layer7.c 2007-01-01 05:30:46.000000000 +0100 +@@ -296,33 +296,34 @@ + } + } + +-/* add the new app data to the conntrack. Return number of bytes added. */ +-static int add_data(struct ip_conntrack * master_conntrack, +- char * app_data, int appdatalen) ++static int add_datastr(char *target, int offset, char *app_data, int len) + { + int length = 0, i; +- int oldlength = master_conntrack->layer7.app_data_len; +- +- // This is a fix for a race condition by Deti Fliegl. However, I'm not +- // clear on whether the race condition exists or whether this really +- // fixes it. I might just be being dense... Anyway, if it's not really +- // a fix, all it does is waste a very small amount of time. +- if(!master_conntrack->layer7.app_data) return 0; ++ if(!target) return 0; + + /* Strip nulls. Make everything lower case (our regex lib doesn't + do case insensitivity). Add it to the end of the current data. */ +- for(i = 0; i < maxdatalen-oldlength-1 && +- i < appdatalen; i++) { ++ for(i = 0; i < maxdatalen-offset-1 && i < len; i++) { + if(app_data[i] != '\0') { +- master_conntrack->layer7.app_data[length+oldlength] = ++ target[length+offset] = + /* the kernel version of tolower mungs 'upper ascii' */ + isascii(app_data[i])? tolower(app_data[i]) : app_data[i]; + length++; + } + } ++ target[length+offset] = '\0'; + +- master_conntrack->layer7.app_data[length+oldlength] = '\0'; +- master_conntrack->layer7.app_data_len = length + oldlength; ++ return length; ++} ++ ++/* add the new app data to the conntrack. Return number of bytes added. */ ++static int add_data(struct ip_conntrack * master_conntrack, ++ char * app_data, int appdatalen) ++{ ++ int length; ++ ++ length = add_datastr(master_conntrack->layer7.app_data, master_conntrack->layer7.app_data_len, app_data, appdatalen); ++ master_conntrack->layer7.app_data_len += length; + + return length; + } +@@ -339,7 +340,7 @@ + struct ipt_layer7_info * info = (struct ipt_layer7_info *)matchinfo; + enum ip_conntrack_info master_ctinfo, ctinfo; + struct ip_conntrack *master_conntrack, *conntrack; +- unsigned char * app_data; ++ unsigned char *app_data, *tmp_data; + unsigned int pattern_result, appdatalen; + regexp * comppattern; + +@@ -362,8 +363,8 @@ + master_conntrack = master_ct(master_conntrack); + + /* if we've classified it or seen too many packets */ +- if(TOTAL_PACKETS > num_packets || +- master_conntrack->layer7.app_proto) { ++ if(!info->pkt && (TOTAL_PACKETS > num_packets || ++ master_conntrack->layer7.app_proto)) { + + pattern_result = match_no_append(conntrack, master_conntrack, ctinfo, master_ctinfo, info); + +@@ -394,6 +395,23 @@ + comppattern = compile_and_cache(info->pattern, info->protocol); + spin_unlock_bh(&list_lock); + ++ if (info->pkt) { ++ tmp_data = kmalloc(maxdatalen, GFP_ATOMIC); ++ if(!tmp_data){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in match, bailing.\n"); ++ return info->invert; ++ } ++ ++ tmp_data[0] = '\0'; ++ add_datastr(tmp_data, 0, app_data, appdatalen); ++ pattern_result = ((comppattern && regexec(comppattern, tmp_data)) ? 1 : 0); ++ kfree(tmp_data); ++ tmp_data = NULL; ++ ++ return (pattern_result ^ info->invert); ++ } ++ + /* On the first packet of a connection, allocate space for app data */ + write_lock(&ct_lock); + if(TOTAL_PACKETS == 1 && !skb->cb[0] && !master_conntrack->layer7.app_data) { diff --git a/target/linux/generic-2.6/patches/102-openswan-2.4.0.kernel-2.6-natt.patch b/target/linux/generic-2.6/patches/102-openswan-2.4.0.kernel-2.6-natt.patch deleted file mode 100644 index 2b4238c688..0000000000 --- a/target/linux/generic-2.6/patches/102-openswan-2.4.0.kernel-2.6-natt.patch +++ /dev/null @@ -1,171 +0,0 @@ -diff -urN linux-2.6.19.old/include/net/xfrmudp.h linux-2.6.19.dev/include/net/xfrmudp.h ---- linux-2.6.19.old/include/net/xfrmudp.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/net/xfrmudp.h 2006-12-14 03:13:41.000000000 +0100 -@@ -0,0 +1,10 @@ -+/* -+ * pointer to function for type that xfrm4_input wants, to permit -+ * decoupling of XFRM from udp.c -+ */ -+#define HAVE_XFRM4_UDP_REGISTER -+ -+typedef int (*xfrm4_rcv_encap_t)(struct sk_buff *skb, __u16 encap_type); -+extern int udp4_register_esp_rcvencap(xfrm4_rcv_encap_t func -+ , xfrm4_rcv_encap_t *oldfunc); -+extern int udp4_unregister_esp_rcvencap(xfrm4_rcv_encap_t func); -diff -urN linux-2.6.19.old/net/ipv4/Kconfig linux-2.6.19.dev/net/ipv4/Kconfig ---- linux-2.6.19.old/net/ipv4/Kconfig 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/Kconfig 2006-12-14 03:13:41.000000000 +0100 -@@ -273,6 +273,12 @@ - Network), but can be distributed all over the Internet. If you want - to do that, say Y here and to "IP multicast routing" below. - -+config IPSEC_NAT_TRAVERSAL -+ bool "IPSEC NAT-Traversal (KLIPS compatible)" -+ depends on INET -+ ---help--- -+ Includes support for RFC3947/RFC3948 NAT-Traversal of ESP over UDP. -+ - config IP_MROUTE - bool "IP: multicast routing" - depends on IP_MULTICAST -diff -urN linux-2.6.19.old/net/ipv4/udp.c linux-2.6.19.dev/net/ipv4/udp.c ---- linux-2.6.19.old/net/ipv4/udp.c 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/udp.c 2006-12-14 03:13:41.000000000 +0100 -@@ -108,11 +108,14 @@ - #include - #include - #include -+#include - - /* - * Snmp MIB for the UDP layer - */ - -+static xfrm4_rcv_encap_t xfrm4_rcv_encap_func; -+ - DEFINE_SNMP_STAT(struct udp_mib, udp_statistics) __read_mostly; - - struct hlist_head udp_hash[UDP_HTABLE_SIZE]; -@@ -917,6 +920,42 @@ - sk_common_release(sk); - } - -+#if defined(CONFIG_XFRM) || defined(CONFIG_IPSEC_NAT_TRAVERSAL) -+ -+/* if XFRM isn't a module, then register it directly. */ -+#if 0 && !defined(CONFIG_XFRM_MODULE) && !defined(CONFIG_IPSEC_NAT_TRAVERSAL) -+static xfrm4_rcv_encap_t xfrm4_rcv_encap_func = xfrm4_rcv_encap; -+#else -+static xfrm4_rcv_encap_t xfrm4_rcv_encap_func = NULL; -+#endif -+ -+int udp4_register_esp_rcvencap(xfrm4_rcv_encap_t func -+ , xfrm4_rcv_encap_t *oldfunc) -+{ -+ if(oldfunc != NULL) { -+ *oldfunc = xfrm4_rcv_encap_func; -+ } -+ -+#if 0 -+ if(xfrm4_rcv_encap_func != NULL) -+ return -1; -+#endif -+ -+ xfrm4_rcv_encap_func = func; -+ return 0; -+} -+ -+int udp4_unregister_esp_rcvencap(xfrm4_rcv_encap_t func) -+{ -+ if(xfrm4_rcv_encap_func != func) -+ return -1; -+ -+ xfrm4_rcv_encap_func = NULL; -+ return 0; -+} -+#endif /* CONFIG_XFRM_MODULE || CONFIG_IPSEC_NAT_TRAVERSAL */ -+ -+ - /* return: - * 1 if the the UDP system should process it - * 0 if we should drop this packet -@@ -924,9 +963,9 @@ - */ - static int udp_encap_rcv(struct sock * sk, struct sk_buff *skb) - { --#ifndef CONFIG_XFRM -+#if !defined(CONFIG_XFRM) && !defined(CONFIG_IPSEC_NAT_TRAVERSAL) - return 1; --#else -+#else /* either CONFIG_XFRM or CONFIG_IPSEC_NAT_TRAVERSAL */ - struct udp_sock *up = udp_sk(sk); - struct udphdr *uh; - struct iphdr *iph; -@@ -939,11 +978,11 @@ - /* if we're overly short, let UDP handle it */ - len = skb->len - sizeof(struct udphdr); - if (len <= 0) -- return 1; -+ return 2; - - /* if this is not encapsulated socket, then just return now */ - if (!encap_type) -- return 1; -+ return 3; - - /* If this is a paged skb, make sure we pull up - * whatever data we need to look at. */ -@@ -966,7 +1005,7 @@ - len = sizeof(struct udphdr); - } else - /* Must be an IKE packet.. pass it through */ -- return 1; -+ return 4; - break; - case UDP_ENCAP_ESPINUDP_NON_IKE: - /* Check if this is a keepalive packet. If so, eat it. */ -@@ -979,7 +1018,7 @@ - len = sizeof(struct udphdr) + 2 * sizeof(u32); - } else - /* Must be an IKE packet.. pass it through */ -- return 1; -+ return 5; - break; - } - -@@ -990,6 +1029,8 @@ - */ - if (skb_cloned(skb) && pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) - return 0; -+ if (skb_cloned(skb) && pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) -+ return 0; - - /* Now we can update and verify the packet length... */ - iph = skb->nh.iph; -@@ -1055,9 +1096,13 @@ - return 0; - } - if (ret < 0) { -- /* process the ESP packet */ -- ret = xfrm4_rcv_encap(skb, up->encap_type); -- UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS); -+ if(xfrm4_rcv_encap_func != NULL) { -+ ret = (*xfrm4_rcv_encap_func)(skb, up->encap_type); -+ UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS); -+ } else { -+ UDP_INC_STATS_BH(UDP_MIB_INERRORS); -+ ret = 1; -+ } - return -ret; - } - /* FALLTHROUGH -- it's a UDP Packet */ -@@ -1639,3 +1684,9 @@ - EXPORT_SYMBOL(udp_proc_register); - EXPORT_SYMBOL(udp_proc_unregister); - #endif -+ -+#if defined(CONFIG_IPSEC_NAT_TRAVERSAL) -+EXPORT_SYMBOL(udp4_register_esp_rcvencap); -+EXPORT_SYMBOL(udp4_unregister_esp_rcvencap); -+#endif -+ diff --git a/target/linux/generic-2.6/patches/103-netfilter-ipset.patch b/target/linux/generic-2.6/patches/103-netfilter-ipset.patch deleted file mode 100644 index 8a35d8a6b4..0000000000 --- a/target/linux/generic-2.6/patches/103-netfilter-ipset.patch +++ /dev/null @@ -1,5851 +0,0 @@ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,489 @@ -+#ifndef _IP_SET_H -+#define _IP_SET_H -+ -+/* Copyright (C) 2000-2002 Joakim Axelsson -+ * Patrick Schaaf -+ * Martin Josefsson -+ * Copyright (C) 2003-2004 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* -+ * A sockopt of such quality has hardly ever been seen before on the open -+ * market! This little beauty, hardly ever used: above 64, so it's -+ * traditionally used for firewalling, not touched (even once!) by the -+ * 2.0, 2.2 and 2.4 kernels! -+ * -+ * Comes with its own certificate of authenticity, valid anywhere in the -+ * Free world! -+ * -+ * Rusty, 19.4.2000 -+ */ -+#define SO_IP_SET 83 -+ -+/* -+ * Heavily modify by Joakim Axelsson 08.03.2002 -+ * - Made it more modulebased -+ * -+ * Additional heavy modifications by Jozsef Kadlecsik 22.02.2004 -+ * - bindings added -+ * - in order to "deal with" backward compatibility, renamed to ipset -+ */ -+ -+/* -+ * Used so that the kernel module and ipset-binary can match their versions -+ */ -+#define IP_SET_PROTOCOL_VERSION 2 -+ -+#define IP_SET_MAXNAMELEN 32 /* set names and set typenames */ -+ -+/* Lets work with our own typedef for representing an IP address. -+ * We hope to make the code more portable, possibly to IPv6... -+ * -+ * The representation works in HOST byte order, because most set types -+ * will perform arithmetic operations and compare operations. -+ * -+ * For now the type is an uint32_t. -+ * -+ * Make sure to ONLY use the functions when translating and parsing -+ * in order to keep the host byte order and make it more portable: -+ * parse_ip() -+ * parse_mask() -+ * parse_ipandmask() -+ * ip_tostring() -+ * (Joakim: where are they???) -+ */ -+ -+typedef uint32_t ip_set_ip_t; -+ -+/* Sets are identified by an id in kernel space. Tweak with ip_set_id_t -+ * and IP_SET_INVALID_ID if you want to increase the max number of sets. -+ */ -+typedef uint16_t ip_set_id_t; -+ -+#define IP_SET_INVALID_ID 65535 -+ -+/* How deep we follow bindings */ -+#define IP_SET_MAX_BINDINGS 6 -+ -+/* -+ * Option flags for kernel operations (ipt_set_info) -+ */ -+#define IPSET_SRC 0x01 /* Source match/add */ -+#define IPSET_DST 0x02 /* Destination match/add */ -+#define IPSET_MATCH_INV 0x04 /* Inverse matching */ -+ -+/* -+ * Set types (flavours) -+ */ -+#define IPSET_TYPE_IP 0 /* IP address type of set */ -+#define IPSET_TYPE_PORT 1 /* Port type of set */ -+ -+/* Reserved keywords */ -+#define IPSET_TOKEN_DEFAULT ":default:" -+#define IPSET_TOKEN_ALL ":all:" -+ -+/* SO_IP_SET operation constants, and their request struct types. -+ * -+ * Operation ids: -+ * 0-99: commands with version checking -+ * 100-199: add/del/test/bind/unbind -+ * 200-299: list, save, restore -+ */ -+ -+/* Single shot operations: -+ * version, create, destroy, flush, rename and swap -+ * -+ * Sets are identified by name. -+ */ -+ -+#define IP_SET_REQ_STD \ -+ unsigned op; \ -+ unsigned version; \ -+ char name[IP_SET_MAXNAMELEN] -+ -+#define IP_SET_OP_CREATE 0x00000001 /* Create a new (empty) set */ -+struct ip_set_req_create { -+ IP_SET_REQ_STD; -+ char typename[IP_SET_MAXNAMELEN]; -+}; -+ -+#define IP_SET_OP_DESTROY 0x00000002 /* Remove a (empty) set */ -+struct ip_set_req_std { -+ IP_SET_REQ_STD; -+}; -+ -+#define IP_SET_OP_FLUSH 0x00000003 /* Remove all IPs in a set */ -+/* Uses ip_set_req_std */ -+ -+#define IP_SET_OP_RENAME 0x00000004 /* Rename a set */ -+/* Uses ip_set_req_create */ -+ -+#define IP_SET_OP_SWAP 0x00000005 /* Swap two sets */ -+/* Uses ip_set_req_create */ -+ -+union ip_set_name_index { -+ char name[IP_SET_MAXNAMELEN]; -+ ip_set_id_t index; -+}; -+ -+#define IP_SET_OP_GET_BYNAME 0x00000006 /* Get set index by name */ -+struct ip_set_req_get_set { -+ unsigned op; -+ unsigned version; -+ union ip_set_name_index set; -+}; -+ -+#define IP_SET_OP_GET_BYINDEX 0x00000007 /* Get set name by index */ -+/* Uses ip_set_req_get_set */ -+ -+#define IP_SET_OP_VERSION 0x00000100 /* Ask kernel version */ -+struct ip_set_req_version { -+ unsigned op; -+ unsigned version; -+}; -+ -+/* Double shots operations: -+ * add, del, test, bind and unbind. -+ * -+ * First we query the kernel to get the index and type of the target set, -+ * then issue the command. Validity of IP is checked in kernel in order -+ * to minimalize sockopt operations. -+ */ -+ -+/* Get minimal set data for add/del/test/bind/unbind IP */ -+#define IP_SET_OP_ADT_GET 0x00000010 /* Get set and type */ -+struct ip_set_req_adt_get { -+ unsigned op; -+ unsigned version; -+ union ip_set_name_index set; -+ char typename[IP_SET_MAXNAMELEN]; -+}; -+ -+#define IP_SET_REQ_BYINDEX \ -+ unsigned op; \ -+ ip_set_id_t index; -+ -+struct ip_set_req_adt { -+ IP_SET_REQ_BYINDEX; -+}; -+ -+#define IP_SET_OP_ADD_IP 0x00000101 /* Add an IP to a set */ -+/* Uses ip_set_req_adt, with type specific addage */ -+ -+#define IP_SET_OP_DEL_IP 0x00000102 /* Remove an IP from a set */ -+/* Uses ip_set_req_adt, with type specific addage */ -+ -+#define IP_SET_OP_TEST_IP 0x00000103 /* Test an IP in a set */ -+/* Uses ip_set_req_adt, with type specific addage */ -+ -+#define IP_SET_OP_BIND_SET 0x00000104 /* Bind an IP to a set */ -+/* Uses ip_set_req_bind, with type specific addage */ -+struct ip_set_req_bind { -+ IP_SET_REQ_BYINDEX; -+ char binding[IP_SET_MAXNAMELEN]; -+}; -+ -+#define IP_SET_OP_UNBIND_SET 0x00000105 /* Unbind an IP from a set */ -+/* Uses ip_set_req_bind, with type speficic addage -+ * index = 0 means unbinding for all sets */ -+ -+#define IP_SET_OP_TEST_BIND_SET 0x00000106 /* Test binding an IP to a set */ -+/* Uses ip_set_req_bind, with type specific addage */ -+ -+/* Multiple shots operations: list, save, restore. -+ * -+ * - check kernel version and query the max number of sets -+ * - get the basic information on all sets -+ * and size required for the next step -+ * - get actual set data: header, data, bindings -+ */ -+ -+/* Get max_sets and the index of a queried set -+ */ -+#define IP_SET_OP_MAX_SETS 0x00000020 -+struct ip_set_req_max_sets { -+ unsigned op; -+ unsigned version; -+ ip_set_id_t max_sets; /* max_sets */ -+ ip_set_id_t sets; /* real number of sets */ -+ union ip_set_name_index set; /* index of set if name used */ -+}; -+ -+/* Get the id and name of the sets plus size for next step */ -+#define IP_SET_OP_LIST_SIZE 0x00000201 -+#define IP_SET_OP_SAVE_SIZE 0x00000202 -+struct ip_set_req_setnames { -+ unsigned op; -+ ip_set_id_t index; /* set to list/save */ -+ size_t size; /* size to get setdata/bindings */ -+ /* followed by sets number of struct ip_set_name_list */ -+}; -+ -+struct ip_set_name_list { -+ char name[IP_SET_MAXNAMELEN]; -+ char typename[IP_SET_MAXNAMELEN]; -+ ip_set_id_t index; -+ ip_set_id_t id; -+}; -+ -+/* The actual list operation */ -+#define IP_SET_OP_LIST 0x00000203 -+struct ip_set_req_list { -+ IP_SET_REQ_BYINDEX; -+ /* sets number of struct ip_set_list in reply */ -+}; -+ -+struct ip_set_list { -+ ip_set_id_t index; -+ ip_set_id_t binding; -+ u_int32_t ref; -+ size_t header_size; /* Set header data of header_size */ -+ size_t members_size; /* Set members data of members_size */ -+ size_t bindings_size; /* Set bindings data of bindings_size */ -+}; -+ -+struct ip_set_hash_list { -+ ip_set_ip_t ip; -+ ip_set_id_t binding; -+}; -+ -+/* The save operation */ -+#define IP_SET_OP_SAVE 0x00000204 -+/* Uses ip_set_req_list, in the reply replaced by -+ * sets number of struct ip_set_save plus a marker -+ * ip_set_save followed by ip_set_hash_save structures. -+ */ -+struct ip_set_save { -+ ip_set_id_t index; -+ ip_set_id_t binding; -+ size_t header_size; /* Set header data of header_size */ -+ size_t members_size; /* Set members data of members_size */ -+}; -+ -+/* At restoring, ip == 0 means default binding for the given set: */ -+struct ip_set_hash_save { -+ ip_set_ip_t ip; -+ ip_set_id_t id; -+ ip_set_id_t binding; -+}; -+ -+/* The restore operation */ -+#define IP_SET_OP_RESTORE 0x00000205 -+/* Uses ip_set_req_setnames followed by ip_set_restore structures -+ * plus a marker ip_set_restore, followed by ip_set_hash_save -+ * structures. -+ */ -+struct ip_set_restore { -+ char name[IP_SET_MAXNAMELEN]; -+ char typename[IP_SET_MAXNAMELEN]; -+ ip_set_id_t index; -+ size_t header_size; /* Create data of header_size */ -+ size_t members_size; /* Set members data of members_size */ -+}; -+ -+static inline int bitmap_bytes(ip_set_ip_t a, ip_set_ip_t b) -+{ -+ return 4 * ((((b - a + 8) / 8) + 3) / 4); -+} -+ -+#ifdef __KERNEL__ -+ -+#define ip_set_printk(format, args...) \ -+ do { \ -+ printk("%s: %s: ", __FILE__, __FUNCTION__); \ -+ printk(format "\n" , ## args); \ -+ } while (0) -+ -+#if defined(IP_SET_DEBUG) -+#define DP(format, args...) \ -+ do { \ -+ printk("%s: %s (DBG): ", __FILE__, __FUNCTION__);\ -+ printk(format "\n" , ## args); \ -+ } while (0) -+#define IP_SET_ASSERT(x) \ -+ do { \ -+ if (!(x)) \ -+ printk("IP_SET_ASSERT: %s:%i(%s)\n", \ -+ __FILE__, __LINE__, __FUNCTION__); \ -+ } while (0) -+#else -+#define DP(format, args...) -+#define IP_SET_ASSERT(x) -+#endif -+ -+struct ip_set; -+ -+/* -+ * The ip_set_type definition - one per set type, e.g. "ipmap". -+ * -+ * Each individual set has a pointer, set->type, going to one -+ * of these structures. Function pointers inside the structure implement -+ * the real behaviour of the sets. -+ * -+ * If not mentioned differently, the implementation behind the function -+ * pointers of a set_type, is expected to return 0 if ok, and a negative -+ * errno (e.g. -EINVAL) on error. -+ */ -+struct ip_set_type { -+ struct list_head list; /* next in list of set types */ -+ -+ /* test for IP in set (kernel: iptables -m set src|dst) -+ * return 0 if not in set, 1 if in set. -+ */ -+ int (*testip_kernel) (struct ip_set *set, -+ const struct sk_buff * skb, -+ u_int32_t flags, -+ ip_set_ip_t *ip); -+ -+ /* test for IP in set (userspace: ipset -T set IP) -+ * return 0 if not in set, 1 if in set. -+ */ -+ int (*testip) (struct ip_set *set, -+ const void *data, size_t size, -+ ip_set_ip_t *ip); -+ -+ /* -+ * Size of the data structure passed by when -+ * adding/deletin/testing an entry. -+ */ -+ size_t reqsize; -+ -+ /* Add IP into set (userspace: ipset -A set IP) -+ * Return -EEXIST if the address is already in the set, -+ * and -ERANGE if the address lies outside the set bounds. -+ * If the address was not already in the set, 0 is returned. -+ */ -+ int (*addip) (struct ip_set *set, -+ const void *data, size_t size, -+ ip_set_ip_t *ip); -+ -+ /* Add IP into set (kernel: iptables ... -j SET set src|dst) -+ * Return -EEXIST if the address is already in the set, -+ * and -ERANGE if the address lies outside the set bounds. -+ * If the address was not already in the set, 0 is returned. -+ */ -+ int (*addip_kernel) (struct ip_set *set, -+ const struct sk_buff * skb, -+ u_int32_t flags, -+ ip_set_ip_t *ip); -+ -+ /* remove IP from set (userspace: ipset -D set --entry x) -+ * Return -EEXIST if the address is NOT in the set, -+ * and -ERANGE if the address lies outside the set bounds. -+ * If the address really was in the set, 0 is returned. -+ */ -+ int (*delip) (struct ip_set *set, -+ const void *data, size_t size, -+ ip_set_ip_t *ip); -+ -+ /* remove IP from set (kernel: iptables ... -j SET --entry x) -+ * Return -EEXIST if the address is NOT in the set, -+ * and -ERANGE if the address lies outside the set bounds. -+ * If the address really was in the set, 0 is returned. -+ */ -+ int (*delip_kernel) (struct ip_set *set, -+ const struct sk_buff * skb, -+ u_int32_t flags, -+ ip_set_ip_t *ip); -+ -+ /* new set creation - allocated type specific items -+ */ -+ int (*create) (struct ip_set *set, -+ const void *data, size_t size); -+ -+ /* retry the operation after successfully tweaking the set -+ */ -+ int (*retry) (struct ip_set *set); -+ -+ /* set destruction - free type specific items -+ * There is no return value. -+ * Can be called only when child sets are destroyed. -+ */ -+ void (*destroy) (struct ip_set *set); -+ -+ /* set flushing - reset all bits in the set, or something similar. -+ * There is no return value. -+ */ -+ void (*flush) (struct ip_set *set); -+ -+ /* Listing: size needed for header -+ */ -+ size_t header_size; -+ -+ /* Listing: Get the header -+ * -+ * Fill in the information in "data". -+ * This function is always run after list_header_size() under a -+ * writelock on the set. Therefor is the length of "data" always -+ * correct. -+ */ -+ void (*list_header) (const struct ip_set *set, -+ void *data); -+ -+ /* Listing: Get the size for the set members -+ */ -+ int (*list_members_size) (const struct ip_set *set); -+ -+ /* Listing: Get the set members -+ * -+ * Fill in the information in "data". -+ * This function is always run after list_member_size() under a -+ * writelock on the set. Therefor is the length of "data" always -+ * correct. -+ */ -+ void (*list_members) (const struct ip_set *set, -+ void *data); -+ -+ char typename[IP_SET_MAXNAMELEN]; -+ char typecode; -+ int protocol_version; -+ -+ /* Set this to THIS_MODULE if you are a module, otherwise NULL */ -+ struct module *me; -+}; -+ -+extern int ip_set_register_set_type(struct ip_set_type *set_type); -+extern void ip_set_unregister_set_type(struct ip_set_type *set_type); -+ -+/* A generic ipset */ -+struct ip_set { -+ char name[IP_SET_MAXNAMELEN]; /* the name of the set */ -+ rwlock_t lock; /* lock for concurrency control */ -+ ip_set_id_t id; /* set id for swapping */ -+ ip_set_id_t binding; /* default binding for the set */ -+ atomic_t ref; /* in kernel and in hash references */ -+ struct ip_set_type *type; /* the set types */ -+ void *data; /* pooltype specific data */ -+}; -+ -+/* Structure to bind set elements to sets */ -+struct ip_set_hash { -+ struct list_head list; /* list of clashing entries in hash */ -+ ip_set_ip_t ip; /* ip from set */ -+ ip_set_id_t id; /* set id */ -+ ip_set_id_t binding; /* set we bind the element to */ -+}; -+ -+/* register and unregister set references */ -+extern ip_set_id_t ip_set_get_byname(const char name[IP_SET_MAXNAMELEN]); -+extern ip_set_id_t ip_set_get_byindex(ip_set_id_t id); -+extern void ip_set_put(ip_set_id_t id); -+ -+/* API for iptables set match, and SET target */ -+extern void ip_set_addip_kernel(ip_set_id_t id, -+ const struct sk_buff *skb, -+ const u_int32_t *flags); -+extern void ip_set_delip_kernel(ip_set_id_t id, -+ const struct sk_buff *skb, -+ const u_int32_t *flags); -+extern int ip_set_testip_kernel(ip_set_id_t id, -+ const struct sk_buff *skb, -+ const u_int32_t *flags); -+ -+#endif /* __KERNEL__ */ -+ -+#endif /*_IP_SET_H*/ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_iphash.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_iphash.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_iphash.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_iphash.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,30 @@ -+#ifndef __IP_SET_IPHASH_H -+#define __IP_SET_IPHASH_H -+ -+#include -+ -+#define SETTYPE_NAME "iphash" -+#define MAX_RANGE 0x0000FFFF -+ -+struct ip_set_iphash { -+ ip_set_ip_t *members; /* the iphash proper */ -+ uint32_t initval; /* initval for jhash_1word */ -+ uint32_t prime; /* prime for double hashing */ -+ uint32_t hashsize; /* hash size */ -+ uint16_t probes; /* max number of probes */ -+ uint16_t resize; /* resize factor in percent */ -+ ip_set_ip_t netmask; /* netmask */ -+}; -+ -+struct ip_set_req_iphash_create { -+ uint32_t hashsize; -+ uint16_t probes; -+ uint16_t resize; -+ ip_set_ip_t netmask; -+}; -+ -+struct ip_set_req_iphash { -+ ip_set_ip_t ip; -+}; -+ -+#endif /* __IP_SET_IPHASH_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_ipmap.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_ipmap.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_ipmap.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_ipmap.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,56 @@ -+#ifndef __IP_SET_IPMAP_H -+#define __IP_SET_IPMAP_H -+ -+#include -+ -+#define SETTYPE_NAME "ipmap" -+#define MAX_RANGE 0x0000FFFF -+ -+struct ip_set_ipmap { -+ void *members; /* the ipmap proper */ -+ ip_set_ip_t first_ip; /* host byte order, included in range */ -+ ip_set_ip_t last_ip; /* host byte order, included in range */ -+ ip_set_ip_t netmask; /* subnet netmask */ -+ ip_set_ip_t sizeid; /* size of set in IPs */ -+ u_int16_t hosts; /* number of hosts in a subnet */ -+}; -+ -+struct ip_set_req_ipmap_create { -+ ip_set_ip_t from; -+ ip_set_ip_t to; -+ ip_set_ip_t netmask; -+}; -+ -+struct ip_set_req_ipmap { -+ ip_set_ip_t ip; -+}; -+ -+unsigned int -+mask_to_bits(ip_set_ip_t mask) -+{ -+ unsigned int bits = 32; -+ ip_set_ip_t maskaddr; -+ -+ if (mask == 0xFFFFFFFF) -+ return bits; -+ -+ maskaddr = 0xFFFFFFFE; -+ while (--bits >= 0 && maskaddr != mask) -+ maskaddr <<= 1; -+ -+ return bits; -+} -+ -+ip_set_ip_t -+range_to_mask(ip_set_ip_t from, ip_set_ip_t to, unsigned int *bits) -+{ -+ ip_set_ip_t mask = 0xFFFFFFFE; -+ -+ *bits = 32; -+ while (--(*bits) >= 0 && mask && (to & mask) != from) -+ mask <<= 1; -+ -+ return mask; -+} -+ -+#endif /* __IP_SET_IPMAP_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_iptree.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_iptree.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_iptree.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_iptree.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,39 @@ -+#ifndef __IP_SET_IPTREE_H -+#define __IP_SET_IPTREE_H -+ -+#include -+ -+#define SETTYPE_NAME "iptree" -+#define MAX_RANGE 0x0000FFFF -+ -+struct ip_set_iptreed { -+ unsigned long expires[255]; /* x.x.x.ADDR */ -+}; -+ -+struct ip_set_iptreec { -+ struct ip_set_iptreed *tree[255]; /* x.x.ADDR.* */ -+}; -+ -+struct ip_set_iptreeb { -+ struct ip_set_iptreec *tree[255]; /* x.ADDR.*.* */ -+}; -+ -+struct ip_set_iptree { -+ unsigned int timeout; -+ unsigned int gc_interval; -+#ifdef __KERNEL__ -+ struct timer_list gc; -+ struct ip_set_iptreeb *tree[255]; /* ADDR.*.*.* */ -+#endif -+}; -+ -+struct ip_set_req_iptree_create { -+ unsigned int timeout; -+}; -+ -+struct ip_set_req_iptree { -+ ip_set_ip_t ip; -+ unsigned int timeout; -+}; -+ -+#endif /* __IP_SET_IPTREE_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_jhash.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_jhash.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_jhash.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_jhash.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,148 @@ -+#ifndef _LINUX_IPSET_JHASH_H -+#define _LINUX_IPSET_JHASH_H -+ -+/* This is a copy of linux/jhash.h but the types u32/u8 are changed -+ * to __u32/__u8 so that the header file can be included into -+ * userspace code as well. Jozsef Kadlecsik (kadlec@blackhole.kfki.hu) -+ */ -+ -+/* jhash.h: Jenkins hash support. -+ * -+ * Copyright (C) 1996 Bob Jenkins (bob_jenkins@burtleburtle.net) -+ * -+ * http://burtleburtle.net/bob/hash/ -+ * -+ * These are the credits from Bob's sources: -+ * -+ * lookup2.c, by Bob Jenkins, December 1996, Public Domain. -+ * hash(), hash2(), hash3, and mix() are externally useful functions. -+ * Routines to test the hash are included if SELF_TEST is defined. -+ * You can use this free for any purpose. It has no warranty. -+ * -+ * Copyright (C) 2003 David S. Miller (davem@redhat.com) -+ * -+ * I've modified Bob's hash to be useful in the Linux kernel, and -+ * any bugs present are surely my fault. -DaveM -+ */ -+ -+/* NOTE: Arguments are modified. */ -+#define __jhash_mix(a, b, c) \ -+{ \ -+ a -= b; a -= c; a ^= (c>>13); \ -+ b -= c; b -= a; b ^= (a<<8); \ -+ c -= a; c -= b; c ^= (b>>13); \ -+ a -= b; a -= c; a ^= (c>>12); \ -+ b -= c; b -= a; b ^= (a<<16); \ -+ c -= a; c -= b; c ^= (b>>5); \ -+ a -= b; a -= c; a ^= (c>>3); \ -+ b -= c; b -= a; b ^= (a<<10); \ -+ c -= a; c -= b; c ^= (b>>15); \ -+} -+ -+/* The golden ration: an arbitrary value */ -+#define JHASH_GOLDEN_RATIO 0x9e3779b9 -+ -+/* The most generic version, hashes an arbitrary sequence -+ * of bytes. No alignment or length assumptions are made about -+ * the input key. -+ */ -+static inline __u32 jhash(void *key, __u32 length, __u32 initval) -+{ -+ __u32 a, b, c, len; -+ __u8 *k = key; -+ -+ len = length; -+ a = b = JHASH_GOLDEN_RATIO; -+ c = initval; -+ -+ while (len >= 12) { -+ a += (k[0] +((__u32)k[1]<<8) +((__u32)k[2]<<16) +((__u32)k[3]<<24)); -+ b += (k[4] +((__u32)k[5]<<8) +((__u32)k[6]<<16) +((__u32)k[7]<<24)); -+ c += (k[8] +((__u32)k[9]<<8) +((__u32)k[10]<<16)+((__u32)k[11]<<24)); -+ -+ __jhash_mix(a,b,c); -+ -+ k += 12; -+ len -= 12; -+ } -+ -+ c += length; -+ switch (len) { -+ case 11: c += ((__u32)k[10]<<24); -+ case 10: c += ((__u32)k[9]<<16); -+ case 9 : c += ((__u32)k[8]<<8); -+ case 8 : b += ((__u32)k[7]<<24); -+ case 7 : b += ((__u32)k[6]<<16); -+ case 6 : b += ((__u32)k[5]<<8); -+ case 5 : b += k[4]; -+ case 4 : a += ((__u32)k[3]<<24); -+ case 3 : a += ((__u32)k[2]<<16); -+ case 2 : a += ((__u32)k[1]<<8); -+ case 1 : a += k[0]; -+ }; -+ -+ __jhash_mix(a,b,c); -+ -+ return c; -+} -+ -+/* A special optimized version that handles 1 or more of __u32s. -+ * The length parameter here is the number of __u32s in the key. -+ */ -+static inline __u32 jhash2(__u32 *k, __u32 length, __u32 initval) -+{ -+ __u32 a, b, c, len; -+ -+ a = b = JHASH_GOLDEN_RATIO; -+ c = initval; -+ len = length; -+ -+ while (len >= 3) { -+ a += k[0]; -+ b += k[1]; -+ c += k[2]; -+ __jhash_mix(a, b, c); -+ k += 3; len -= 3; -+ } -+ -+ c += length * 4; -+ -+ switch (len) { -+ case 2 : b += k[1]; -+ case 1 : a += k[0]; -+ }; -+ -+ __jhash_mix(a,b,c); -+ -+ return c; -+} -+ -+ -+/* A special ultra-optimized versions that knows they are hashing exactly -+ * 3, 2 or 1 word(s). -+ * -+ * NOTE: In partilar the "c += length; __jhash_mix(a,b,c);" normally -+ * done at the end is not done here. -+ */ -+static inline __u32 jhash_3words(__u32 a, __u32 b, __u32 c, __u32 initval) -+{ -+ a += JHASH_GOLDEN_RATIO; -+ b += JHASH_GOLDEN_RATIO; -+ c += initval; -+ -+ __jhash_mix(a, b, c); -+ -+ return c; -+} -+ -+static inline __u32 jhash_2words(__u32 a, __u32 b, __u32 initval) -+{ -+ return jhash_3words(a, b, 0, initval); -+} -+ -+static inline __u32 jhash_1word(__u32 a, __u32 initval) -+{ -+ return jhash_3words(a, 0, 0, initval); -+} -+ -+#endif /* _LINUX_IPSET_JHASH_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_macipmap.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_macipmap.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_macipmap.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_macipmap.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,38 @@ -+#ifndef __IP_SET_MACIPMAP_H -+#define __IP_SET_MACIPMAP_H -+ -+#include -+ -+#define SETTYPE_NAME "macipmap" -+#define MAX_RANGE 0x0000FFFF -+ -+/* general flags */ -+#define IPSET_MACIP_MATCHUNSET 1 -+ -+/* per ip flags */ -+#define IPSET_MACIP_ISSET 1 -+ -+struct ip_set_macipmap { -+ void *members; /* the macipmap proper */ -+ ip_set_ip_t first_ip; /* host byte order, included in range */ -+ ip_set_ip_t last_ip; /* host byte order, included in range */ -+ u_int32_t flags; -+}; -+ -+struct ip_set_req_macipmap_create { -+ ip_set_ip_t from; -+ ip_set_ip_t to; -+ u_int32_t flags; -+}; -+ -+struct ip_set_req_macipmap { -+ ip_set_ip_t ip; -+ unsigned char ethernet[ETH_ALEN]; -+}; -+ -+struct ip_set_macip { -+ unsigned short flags; -+ unsigned char ethernet[ETH_ALEN]; -+}; -+ -+#endif /* __IP_SET_MACIPMAP_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_malloc.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_malloc.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_malloc.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_malloc.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,42 @@ -+#ifndef _IP_SET_MALLOC_H -+#define _IP_SET_MALLOC_H -+ -+#ifdef __KERNEL__ -+ -+/* Memory allocation and deallocation */ -+static size_t max_malloc_size = 0; -+ -+static inline void init_max_malloc_size(void) -+{ -+#define CACHE(x) max_malloc_size = x; -+#include -+#undef CACHE -+} -+ -+static inline void * ip_set_malloc_atomic(size_t bytes) -+{ -+ if (bytes > max_malloc_size) -+ return __vmalloc(bytes, GFP_ATOMIC, PAGE_KERNEL); -+ else -+ return kmalloc(bytes, GFP_ATOMIC); -+} -+ -+static inline void * ip_set_malloc(size_t bytes) -+{ -+ if (bytes > max_malloc_size) -+ return vmalloc(bytes); -+ else -+ return kmalloc(bytes, GFP_KERNEL); -+} -+ -+static inline void ip_set_free(void * data, size_t bytes) -+{ -+ if (bytes > max_malloc_size) -+ vfree(data); -+ else -+ kfree(data); -+} -+ -+#endif /* __KERNEL__ */ -+ -+#endif /*_IP_SET_MALLOC_H*/ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_nethash.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_nethash.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_nethash.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_nethash.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,55 @@ -+#ifndef __IP_SET_NETHASH_H -+#define __IP_SET_NETHASH_H -+ -+#include -+ -+#define SETTYPE_NAME "nethash" -+#define MAX_RANGE 0x0000FFFF -+ -+struct ip_set_nethash { -+ ip_set_ip_t *members; /* the nethash proper */ -+ uint32_t initval; /* initval for jhash_1word */ -+ uint32_t prime; /* prime for double hashing */ -+ uint32_t hashsize; /* hash size */ -+ uint16_t probes; /* max number of probes */ -+ uint16_t resize; /* resize factor in percent */ -+ unsigned char cidr[30]; /* CIDR sizes */ -+}; -+ -+struct ip_set_req_nethash_create { -+ uint32_t hashsize; -+ uint16_t probes; -+ uint16_t resize; -+}; -+ -+struct ip_set_req_nethash { -+ ip_set_ip_t ip; -+ unsigned char cidr; -+}; -+ -+static unsigned char shifts[] = {255, 253, 249, 241, 225, 193, 129, 1}; -+ -+static inline ip_set_ip_t -+pack(ip_set_ip_t ip, unsigned char cidr) -+{ -+ ip_set_ip_t addr, *paddr = &addr; -+ unsigned char n, t, *a; -+ -+ addr = htonl(ip & (0xFFFFFFFF << (32 - (cidr)))); -+#ifdef __KERNEL__ -+ DP("ip:%u.%u.%u.%u/%u", NIPQUAD(addr), cidr); -+#endif -+ n = cidr / 8; -+ t = cidr % 8; -+ a = &((unsigned char *)paddr)[n]; -+ *a = *a /(1 << (8 - t)) + shifts[t]; -+#ifdef __KERNEL__ -+ DP("n: %u, t: %u, a: %u", n, t, *a); -+ DP("ip:%u.%u.%u.%u/%u, %u.%u.%u.%u", -+ HIPQUAD(ip), cidr, NIPQUAD(addr)); -+#endif -+ -+ return ntohl(addr); -+} -+ -+#endif /* __IP_SET_NETHASH_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_portmap.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_portmap.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_portmap.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_portmap.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,25 @@ -+#ifndef __IP_SET_PORTMAP_H -+#define __IP_SET_PORTMAP_H -+ -+#include -+ -+#define SETTYPE_NAME "portmap" -+#define MAX_RANGE 0x0000FFFF -+#define INVALID_PORT (MAX_RANGE + 1) -+ -+struct ip_set_portmap { -+ void *members; /* the portmap proper */ -+ ip_set_ip_t first_port; /* host byte order, included in range */ -+ ip_set_ip_t last_port; /* host byte order, included in range */ -+}; -+ -+struct ip_set_req_portmap_create { -+ ip_set_ip_t from; -+ ip_set_ip_t to; -+}; -+ -+struct ip_set_req_portmap { -+ ip_set_ip_t port; -+}; -+ -+#endif /* __IP_SET_PORTMAP_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_prime.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_prime.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_prime.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_prime.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,34 @@ -+#ifndef __IP_SET_PRIME_H -+#define __IP_SET_PRIME_H -+ -+static inline unsigned make_prime_bound(unsigned nr) -+{ -+ unsigned long long nr64 = nr; -+ unsigned long long x = 1; -+ nr = 1; -+ while (x <= nr64) { x <<= 2; nr <<= 1; } -+ return nr; -+} -+ -+static inline int make_prime_check(unsigned nr) -+{ -+ unsigned x = 3; -+ unsigned b = make_prime_bound(nr); -+ while (x <= b) { -+ if (0 == (nr % x)) return 0; -+ x += 2; -+ } -+ return 1; -+} -+ -+static unsigned make_prime(unsigned nr) -+{ -+ if (0 == (nr & 1)) nr--; -+ while (nr > 1) { -+ if (make_prime_check(nr)) return nr; -+ nr -= 2; -+ } -+ return 2; -+} -+ -+#endif /* __IP_SET_PRIME_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_set.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_set.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_set.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_set.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,21 @@ -+#ifndef _IPT_SET_H -+#define _IPT_SET_H -+ -+#include -+ -+struct ipt_set_info { -+ ip_set_id_t index; -+ u_int32_t flags[IP_SET_MAX_BINDINGS + 1]; -+}; -+ -+/* match info */ -+struct ipt_set_info_match { -+ struct ipt_set_info match_set; -+}; -+ -+struct ipt_set_info_target { -+ struct ipt_set_info add_set; -+ struct ipt_set_info del_set; -+}; -+ -+#endif /*_IPT_SET_H*/ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/listhelp.h linux-2.6.19.dev/include/linux/netfilter_ipv4/listhelp.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/listhelp.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/listhelp.h 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,123 @@ -+#ifndef _LISTHELP_H -+#define _LISTHELP_H -+#include -+ -+/* Header to do more comprehensive job than linux/list.h; assume list -+ is first entry in structure. */ -+ -+/* Return pointer to first true entry, if any, or NULL. A macro -+ required to allow inlining of cmpfn. */ -+#define LIST_FIND(head, cmpfn, type, args...) \ -+({ \ -+ const struct list_head *__i, *__j = NULL; \ -+ \ -+ ASSERT_READ_LOCK(head); \ -+ list_for_each(__i, (head)) \ -+ if (cmpfn((const type)__i , ## args)) { \ -+ __j = __i; \ -+ break; \ -+ } \ -+ (type)__j; \ -+}) -+ -+#define LIST_FIND_W(head, cmpfn, type, args...) \ -+({ \ -+ const struct list_head *__i, *__j = NULL; \ -+ \ -+ ASSERT_WRITE_LOCK(head); \ -+ list_for_each(__i, (head)) \ -+ if (cmpfn((type)__i , ## args)) { \ -+ __j = __i; \ -+ break; \ -+ } \ -+ (type)__j; \ -+}) -+ -+/* Just like LIST_FIND but we search backwards */ -+#define LIST_FIND_B(head, cmpfn, type, args...) \ -+({ \ -+ const struct list_head *__i, *__j = NULL; \ -+ \ -+ ASSERT_READ_LOCK(head); \ -+ list_for_each_prev(__i, (head)) \ -+ if (cmpfn((const type)__i , ## args)) { \ -+ __j = __i; \ -+ break; \ -+ } \ -+ (type)__j; \ -+}) -+ -+static inline int -+__list_cmp_same(const void *p1, const void *p2) { return p1 == p2; } -+ -+/* Is this entry in the list? */ -+static inline int -+list_inlist(struct list_head *head, const void *entry) -+{ -+ return LIST_FIND(head, __list_cmp_same, void *, entry) != NULL; -+} -+ -+/* Delete from list. */ -+#ifdef CONFIG_NETFILTER_DEBUG -+#define LIST_DELETE(head, oldentry) \ -+do { \ -+ ASSERT_WRITE_LOCK(head); \ -+ if (!list_inlist(head, oldentry)) \ -+ printk("LIST_DELETE: %s:%u `%s'(%p) not in %s.\n", \ -+ __FILE__, __LINE__, #oldentry, oldentry, #head); \ -+ else list_del((struct list_head *)oldentry); \ -+} while(0) -+#else -+#define LIST_DELETE(head, oldentry) list_del((struct list_head *)oldentry) -+#endif -+ -+/* Append. */ -+static inline void -+list_append(struct list_head *head, void *new) -+{ -+ ASSERT_WRITE_LOCK(head); -+ list_add((new), (head)->prev); -+} -+ -+/* Prepend. */ -+static inline void -+list_prepend(struct list_head *head, void *new) -+{ -+ ASSERT_WRITE_LOCK(head); -+ list_add(new, head); -+} -+ -+/* Insert according to ordering function; insert before first true. */ -+#define LIST_INSERT(head, new, cmpfn) \ -+do { \ -+ struct list_head *__i; \ -+ ASSERT_WRITE_LOCK(head); \ -+ list_for_each(__i, (head)) \ -+ if ((new), (typeof (new))__i) \ -+ break; \ -+ list_add((struct list_head *)(new), __i->prev); \ -+} while(0) -+ -+/* If the field after the list_head is a nul-terminated string, you -+ can use these functions. */ -+static inline int __list_cmp_name(const void *i, const char *name) -+{ -+ return strcmp(name, i+sizeof(struct list_head)) == 0; -+} -+ -+/* Returns false if same name already in list, otherwise does insert. */ -+static inline int -+list_named_insert(struct list_head *head, void *new) -+{ -+ if (LIST_FIND(head, __list_cmp_name, void *, -+ new + sizeof(struct list_head))) -+ return 0; -+ list_prepend(head, new); -+ return 1; -+} -+ -+/* Find this named element in the list. */ -+#define list_named_find(head, name) \ -+LIST_FIND(head, __list_cmp_name, void *, name) -+ -+#endif /*_LISTHELP_H*/ -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set.c ---- linux-2.6.19.old/net/ipv4/netfilter/ip_set.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set.c 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,1989 @@ -+/* Copyright (C) 2000-2002 Joakim Axelsson -+ * Patrick Schaaf -+ * Copyright (C) 2003-2004 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* Kernel module for IP set management */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#define ASSERT_READ_LOCK(x) /* dont use that */ -+#define ASSERT_WRITE_LOCK(x) -+#include -+#include -+ -+static struct list_head set_type_list; /* all registered sets */ -+static struct ip_set **ip_set_list; /* all individual sets */ -+static DEFINE_RWLOCK(ip_set_lock); /* protects the lists and the hash */ -+static DECLARE_MUTEX(ip_set_app_mutex); /* serializes user access */ -+static ip_set_id_t ip_set_max = CONFIG_IP_NF_SET_MAX; -+static ip_set_id_t ip_set_bindings_hash_size = CONFIG_IP_NF_SET_HASHSIZE; -+static struct list_head *ip_set_hash; /* hash of bindings */ -+static unsigned int ip_set_hash_random; /* random seed */ -+ -+/* -+ * Sets are identified either by the index in ip_set_list or by id. -+ * The id never changes and is used to find a key in the hash. -+ * The index may change by swapping and used at all other places -+ * (set/SET netfilter modules, binding value, etc.) -+ * -+ * Userspace requests are serialized by ip_set_mutex and sets can -+ * be deleted only from userspace. Therefore ip_set_list locking -+ * must obey the following rules: -+ * -+ * - kernel requests: read and write locking mandatory -+ * - user requests: read locking optional, write locking mandatory -+ */ -+ -+static inline void -+__ip_set_get(ip_set_id_t index) -+{ -+ atomic_inc(&ip_set_list[index]->ref); -+} -+ -+static inline void -+__ip_set_put(ip_set_id_t index) -+{ -+ atomic_dec(&ip_set_list[index]->ref); -+} -+ -+/* -+ * Binding routines -+ */ -+ -+static inline int -+ip_hash_cmp(const struct ip_set_hash *set_hash, -+ ip_set_id_t id, ip_set_ip_t ip) -+{ -+ return set_hash->id == id && set_hash->ip == ip; -+} -+ -+static ip_set_id_t -+ip_set_find_in_hash(ip_set_id_t id, ip_set_ip_t ip) -+{ -+ u_int32_t key = jhash_2words(id, ip, ip_set_hash_random) -+ % ip_set_bindings_hash_size; -+ struct ip_set_hash *set_hash; -+ -+ ASSERT_READ_LOCK(&ip_set_lock); -+ IP_SET_ASSERT(ip_set_list[id]); -+ DP("set: %s, ip: %u.%u.%u.%u", ip_set_list[id]->name, HIPQUAD(ip)); -+ -+ set_hash = LIST_FIND(&ip_set_hash[key], ip_hash_cmp, -+ struct ip_set_hash *, id, ip); -+ -+ DP("set: %s, ip: %u.%u.%u.%u, binding: %s", ip_set_list[id]->name, -+ HIPQUAD(ip), -+ set_hash != NULL ? ip_set_list[set_hash->binding]->name : ""); -+ -+ return (set_hash != NULL ? set_hash->binding : IP_SET_INVALID_ID); -+} -+ -+static inline void -+__set_hash_del(struct ip_set_hash *set_hash) -+{ -+ ASSERT_WRITE_LOCK(&ip_set_lock); -+ IP_SET_ASSERT(ip_set_list[set_hash->binding]); -+ -+ __ip_set_put(set_hash->binding); -+ list_del(&set_hash->list); -+ kfree(set_hash); -+} -+ -+static int -+ip_set_hash_del(ip_set_id_t id, ip_set_ip_t ip) -+{ -+ u_int32_t key = jhash_2words(id, ip, ip_set_hash_random) -+ % ip_set_bindings_hash_size; -+ struct ip_set_hash *set_hash; -+ -+ IP_SET_ASSERT(ip_set_list[id]); -+ DP("set: %s, ip: %u.%u.%u.%u", ip_set_list[id]->name, HIPQUAD(ip)); -+ write_lock_bh(&ip_set_lock); -+ set_hash = LIST_FIND(&ip_set_hash[key], ip_hash_cmp, -+ struct ip_set_hash *, id, ip); -+ DP("set: %s, ip: %u.%u.%u.%u, binding: %s", ip_set_list[id]->name, -+ HIPQUAD(ip), -+ set_hash != NULL ? ip_set_list[set_hash->binding]->name : ""); -+ -+ if (set_hash != NULL) -+ __set_hash_del(set_hash); -+ write_unlock_bh(&ip_set_lock); -+ return 0; -+} -+ -+static int -+ip_set_hash_add(ip_set_id_t id, ip_set_ip_t ip, ip_set_id_t binding) -+{ -+ u_int32_t key = jhash_2words(id, ip, ip_set_hash_random) -+ % ip_set_bindings_hash_size; -+ struct ip_set_hash *set_hash; -+ int ret = 0; -+ -+ IP_SET_ASSERT(ip_set_list[id]); -+ IP_SET_ASSERT(ip_set_list[binding]); -+ DP("set: %s, ip: %u.%u.%u.%u, binding: %s", ip_set_list[id]->name, -+ HIPQUAD(ip), ip_set_list[binding]->name); -+ write_lock_bh(&ip_set_lock); -+ set_hash = LIST_FIND(&ip_set_hash[key], ip_hash_cmp, -+ struct ip_set_hash *, id, ip); -+ if (!set_hash) { -+ set_hash = kmalloc(sizeof(struct ip_set_hash), GFP_KERNEL); -+ if (!set_hash) { -+ ret = -ENOMEM; -+ goto unlock; -+ } -+ INIT_LIST_HEAD(&set_hash->list); -+ set_hash->id = id; -+ set_hash->ip = ip; -+ list_add(&ip_set_hash[key], &set_hash->list); -+ } else { -+ IP_SET_ASSERT(ip_set_list[set_hash->binding]); -+ DP("overwrite binding: %s", -+ ip_set_list[set_hash->binding]->name); -+ __ip_set_put(set_hash->binding); -+ } -+ set_hash->binding = binding; -+ __ip_set_get(set_hash->binding); -+ unlock: -+ write_unlock_bh(&ip_set_lock); -+ return ret; -+} -+ -+#define FOREACH_HASH_DO(fn, args...) \ -+({ \ -+ ip_set_id_t __key; \ -+ struct ip_set_hash *__set_hash; \ -+ \ -+ for (__key = 0; __key < ip_set_bindings_hash_size; __key++) { \ -+ list_for_each_entry(__set_hash, &ip_set_hash[__key], list) \ -+ fn(__set_hash , ## args); \ -+ } \ -+}) -+ -+#define FOREACH_HASH_RW_DO(fn, args...) \ -+({ \ -+ ip_set_id_t __key; \ -+ struct ip_set_hash *__set_hash, *__n; \ -+ \ -+ ASSERT_WRITE_LOCK(&ip_set_lock); \ -+ for (__key = 0; __key < ip_set_bindings_hash_size; __key++) { \ -+ list_for_each_entry_safe(__set_hash, __n, &ip_set_hash[__key], list)\ -+ fn(__set_hash , ## args); \ -+ } \ -+}) -+ -+/* Add, del and test set entries from kernel */ -+ -+#define follow_bindings(index, set, ip) \ -+((index = ip_set_find_in_hash((set)->id, ip)) != IP_SET_INVALID_ID \ -+ || (index = (set)->binding) != IP_SET_INVALID_ID) -+ -+int -+ip_set_testip_kernel(ip_set_id_t index, -+ const struct sk_buff *skb, -+ const u_int32_t *flags) -+{ -+ struct ip_set *set; -+ ip_set_ip_t ip; -+ int res, i = 0; -+ -+ IP_SET_ASSERT(flags[i]); -+ read_lock_bh(&ip_set_lock); -+ do { -+ set = ip_set_list[index]; -+ IP_SET_ASSERT(set); -+ DP("set %s, index %u", set->name, index); -+ read_lock_bh(&set->lock); -+ res = set->type->testip_kernel(set, skb, flags[i], &ip); -+ read_unlock_bh(&set->lock); -+ } while (res > 0 -+ && flags[++i] -+ && follow_bindings(index, set, ip)); -+ read_unlock_bh(&ip_set_lock); -+ -+ return res; -+} -+ -+void -+ip_set_addip_kernel(ip_set_id_t index, -+ const struct sk_buff *skb, -+ const u_int32_t *flags) -+{ -+ struct ip_set *set; -+ ip_set_ip_t ip; -+ int res, i= 0; -+ -+ IP_SET_ASSERT(flags[i]); -+ retry: -+ read_lock_bh(&ip_set_lock); -+ do { -+ set = ip_set_list[index]; -+ IP_SET_ASSERT(set); -+ DP("set %s, index %u", set->name, index); -+ write_lock_bh(&set->lock); -+ res = set->type->addip_kernel(set, skb, flags[i], &ip); -+ write_unlock_bh(&set->lock); -+ } while ((res == 0 || res == -EEXIST) -+ && flags[++i] -+ && follow_bindings(index, set, ip)); -+ read_unlock_bh(&ip_set_lock); -+ -+ if (res == -EAGAIN -+ && set->type->retry -+ && (res = set->type->retry(set)) == 0) -+ goto retry; -+} -+ -+void -+ip_set_delip_kernel(ip_set_id_t index, -+ const struct sk_buff *skb, -+ const u_int32_t *flags) -+{ -+ struct ip_set *set; -+ ip_set_ip_t ip; -+ int res, i = 0; -+ -+ IP_SET_ASSERT(flags[i]); -+ read_lock_bh(&ip_set_lock); -+ do { -+ set = ip_set_list[index]; -+ IP_SET_ASSERT(set); -+ DP("set %s, index %u", set->name, index); -+ write_lock_bh(&set->lock); -+ res = set->type->delip_kernel(set, skb, flags[i], &ip); -+ write_unlock_bh(&set->lock); -+ } while ((res == 0 || res == -EEXIST) -+ && flags[++i] -+ && follow_bindings(index, set, ip)); -+ read_unlock_bh(&ip_set_lock); -+} -+ -+/* Register and deregister settype */ -+ -+static inline int -+set_type_equal(const struct ip_set_type *set_type, const char *str2) -+{ -+ return !strncmp(set_type->typename, str2, IP_SET_MAXNAMELEN - 1); -+} -+ -+static inline struct ip_set_type * -+find_set_type(const char *name) -+{ -+ return LIST_FIND(&set_type_list, -+ set_type_equal, -+ struct ip_set_type *, -+ name); -+} -+ -+int -+ip_set_register_set_type(struct ip_set_type *set_type) -+{ -+ int ret = 0; -+ -+ if (set_type->protocol_version != IP_SET_PROTOCOL_VERSION) { -+ ip_set_printk("'%s' uses wrong protocol version %u (want %u)", -+ set_type->typename, -+ set_type->protocol_version, -+ IP_SET_PROTOCOL_VERSION); -+ return -EINVAL; -+ } -+ -+ write_lock_bh(&ip_set_lock); -+ if (find_set_type(set_type->typename)) { -+ /* Duplicate! */ -+ ip_set_printk("'%s' already registered!", -+ set_type->typename); -+ ret = -EINVAL; -+ goto unlock; -+ } -+ if (!try_module_get(THIS_MODULE)) { -+ ret = -EFAULT; -+ goto unlock; -+ } -+ list_append(&set_type_list, set_type); -+ DP("'%s' registered.", set_type->typename); -+ unlock: -+ write_unlock_bh(&ip_set_lock); -+ return ret; -+} -+ -+void -+ip_set_unregister_set_type(struct ip_set_type *set_type) -+{ -+ write_lock_bh(&ip_set_lock); -+ if (!find_set_type(set_type->typename)) { -+ ip_set_printk("'%s' not registered?", -+ set_type->typename); -+ goto unlock; -+ } -+ LIST_DELETE(&set_type_list, set_type); -+ module_put(THIS_MODULE); -+ DP("'%s' unregistered.", set_type->typename); -+ unlock: -+ write_unlock_bh(&ip_set_lock); -+ -+} -+ -+/* -+ * Userspace routines -+ */ -+ -+/* -+ * Find set by name, reference it once. The reference makes sure the -+ * thing pointed to, does not go away under our feet. Drop the reference -+ * later, using ip_set_put(). -+ */ -+ip_set_id_t -+ip_set_get_byname(const char *name) -+{ -+ ip_set_id_t i, index = IP_SET_INVALID_ID; -+ -+ down(&ip_set_app_mutex); -+ for (i = 0; i < ip_set_max; i++) { -+ if (ip_set_list[i] != NULL -+ && strcmp(ip_set_list[i]->name, name) == 0) { -+ __ip_set_get(i); -+ index = i; -+ break; -+ } -+ } -+ up(&ip_set_app_mutex); -+ return index; -+} -+ -+/* -+ * Find set by index, reference it once. The reference makes sure the -+ * thing pointed to, does not go away under our feet. Drop the reference -+ * later, using ip_set_put(). -+ */ -+ip_set_id_t -+ip_set_get_byindex(ip_set_id_t index) -+{ -+ down(&ip_set_app_mutex); -+ -+ if (index >= ip_set_max) -+ return IP_SET_INVALID_ID; -+ -+ if (ip_set_list[index]) -+ __ip_set_get(index); -+ else -+ index = IP_SET_INVALID_ID; -+ -+ up(&ip_set_app_mutex); -+ return index; -+} -+ -+/* -+ * If the given set pointer points to a valid set, decrement -+ * reference count by 1. The caller shall not assume the index -+ * to be valid, after calling this function. -+ */ -+void ip_set_put(ip_set_id_t index) -+{ -+ down(&ip_set_app_mutex); -+ if (ip_set_list[index]) -+ __ip_set_put(index); -+ up(&ip_set_app_mutex); -+} -+ -+/* Find a set by name or index */ -+static ip_set_id_t -+ip_set_find_byname(const char *name) -+{ -+ ip_set_id_t i, index = IP_SET_INVALID_ID; -+ -+ for (i = 0; i < ip_set_max; i++) { -+ if (ip_set_list[i] != NULL -+ && strcmp(ip_set_list[i]->name, name) == 0) { -+ index = i; -+ break; -+ } -+ } -+ return index; -+} -+ -+static ip_set_id_t -+ip_set_find_byindex(ip_set_id_t index) -+{ -+ if (index >= ip_set_max || ip_set_list[index] == NULL) -+ index = IP_SET_INVALID_ID; -+ -+ return index; -+} -+ -+/* -+ * Add, del, test, bind and unbind -+ */ -+ -+static inline int -+__ip_set_testip(struct ip_set *set, -+ const void *data, -+ size_t size, -+ ip_set_ip_t *ip) -+{ -+ int res; -+ -+ read_lock_bh(&set->lock); -+ res = set->type->testip(set, data, size, ip); -+ read_unlock_bh(&set->lock); -+ -+ return res; -+} -+ -+static int -+__ip_set_addip(ip_set_id_t index, -+ const void *data, -+ size_t size) -+{ -+ struct ip_set *set = ip_set_list[index]; -+ ip_set_ip_t ip; -+ int res; -+ -+ IP_SET_ASSERT(set); -+ do { -+ write_lock_bh(&set->lock); -+ res = set->type->addip(set, data, size, &ip); -+ write_unlock_bh(&set->lock); -+ } while (res == -EAGAIN -+ && set->type->retry -+ && (res = set->type->retry(set)) == 0); -+ -+ return res; -+} -+ -+static int -+ip_set_addip(ip_set_id_t index, -+ const void *data, -+ size_t size) -+{ -+ -+ return __ip_set_addip(index, -+ data + sizeof(struct ip_set_req_adt), -+ size - sizeof(struct ip_set_req_adt)); -+} -+ -+static int -+ip_set_delip(ip_set_id_t index, -+ const void *data, -+ size_t size) -+{ -+ struct ip_set *set = ip_set_list[index]; -+ ip_set_ip_t ip; -+ int res; -+ -+ IP_SET_ASSERT(set); -+ write_lock_bh(&set->lock); -+ res = set->type->delip(set, -+ data + sizeof(struct ip_set_req_adt), -+ size - sizeof(struct ip_set_req_adt), -+ &ip); -+ write_unlock_bh(&set->lock); -+ -+ return res; -+} -+ -+static int -+ip_set_testip(ip_set_id_t index, -+ const void *data, -+ size_t size) -+{ -+ struct ip_set *set = ip_set_list[index]; -+ ip_set_ip_t ip; -+ int res; -+ -+ IP_SET_ASSERT(set); -+ res = __ip_set_testip(set, -+ data + sizeof(struct ip_set_req_adt), -+ size - sizeof(struct ip_set_req_adt), -+ &ip); -+ -+ return (res > 0 ? -EEXIST : res); -+} -+ -+static int -+ip_set_bindip(ip_set_id_t index, -+ const void *data, -+ size_t size) -+{ -+ struct ip_set *set = ip_set_list[index]; -+ struct ip_set_req_bind *req_bind; -+ ip_set_id_t binding; -+ ip_set_ip_t ip; -+ int res; -+ -+ IP_SET_ASSERT(set); -+ if (size < sizeof(struct ip_set_req_bind)) -+ return -EINVAL; -+ -+ req_bind = (struct ip_set_req_bind *) data; -+ req_bind->binding[IP_SET_MAXNAMELEN - 1] = '\0'; -+ -+ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) { -+ /* Default binding of a set */ -+ char *binding_name; -+ -+ if (size != sizeof(struct ip_set_req_bind) + IP_SET_MAXNAMELEN) -+ return -EINVAL; -+ -+ binding_name = (char *)(data + sizeof(struct ip_set_req_bind)); -+ binding_name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ -+ binding = ip_set_find_byname(binding_name); -+ if (binding == IP_SET_INVALID_ID) -+ return -ENOENT; -+ -+ write_lock_bh(&ip_set_lock); -+ /* Sets as binding values are referenced */ -+ if (set->binding != IP_SET_INVALID_ID) -+ __ip_set_put(set->binding); -+ set->binding = binding; -+ __ip_set_get(set->binding); -+ write_unlock_bh(&ip_set_lock); -+ -+ return 0; -+ } -+ binding = ip_set_find_byname(req_bind->binding); -+ if (binding == IP_SET_INVALID_ID) -+ return -ENOENT; -+ -+ res = __ip_set_testip(set, -+ data + sizeof(struct ip_set_req_bind), -+ size - sizeof(struct ip_set_req_bind), -+ &ip); -+ DP("set %s, ip: %u.%u.%u.%u, binding %s", -+ set->name, HIPQUAD(ip), ip_set_list[binding]->name); -+ -+ if (res >= 0) -+ res = ip_set_hash_add(set->id, ip, binding); -+ -+ return res; -+} -+ -+#define FOREACH_SET_DO(fn, args...) \ -+({ \ -+ ip_set_id_t __i; \ -+ struct ip_set *__set; \ -+ \ -+ for (__i = 0; __i < ip_set_max; __i++) { \ -+ __set = ip_set_list[__i]; \ -+ if (__set != NULL) \ -+ fn(__set , ##args); \ -+ } \ -+}) -+ -+static inline void -+__set_hash_del_byid(struct ip_set_hash *set_hash, ip_set_id_t id) -+{ -+ if (set_hash->id == id) -+ __set_hash_del(set_hash); -+} -+ -+static inline void -+__unbind_default(struct ip_set *set) -+{ -+ if (set->binding != IP_SET_INVALID_ID) { -+ /* Sets as binding values are referenced */ -+ __ip_set_put(set->binding); -+ set->binding = IP_SET_INVALID_ID; -+ } -+} -+ -+static int -+ip_set_unbindip(ip_set_id_t index, -+ const void *data, -+ size_t size) -+{ -+ struct ip_set *set; -+ struct ip_set_req_bind *req_bind; -+ ip_set_ip_t ip; -+ int res; -+ -+ DP(""); -+ if (size < sizeof(struct ip_set_req_bind)) -+ return -EINVAL; -+ -+ req_bind = (struct ip_set_req_bind *) data; -+ req_bind->binding[IP_SET_MAXNAMELEN - 1] = '\0'; -+ -+ DP("%u %s", index, req_bind->binding); -+ if (index == IP_SET_INVALID_ID) { -+ /* unbind :all: */ -+ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) { -+ /* Default binding of sets */ -+ write_lock_bh(&ip_set_lock); -+ FOREACH_SET_DO(__unbind_default); -+ write_unlock_bh(&ip_set_lock); -+ return 0; -+ } else if (strcmp(req_bind->binding, IPSET_TOKEN_ALL) == 0) { -+ /* Flush all bindings of all sets*/ -+ write_lock_bh(&ip_set_lock); -+ FOREACH_HASH_RW_DO(__set_hash_del); -+ write_unlock_bh(&ip_set_lock); -+ return 0; -+ } -+ DP("unreachable reached!"); -+ return -EINVAL; -+ } -+ -+ set = ip_set_list[index]; -+ IP_SET_ASSERT(set); -+ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) { -+ /* Default binding of set */ -+ ip_set_id_t binding = ip_set_find_byindex(set->binding); -+ -+ if (binding == IP_SET_INVALID_ID) -+ return -ENOENT; -+ -+ write_lock_bh(&ip_set_lock); -+ /* Sets in hash values are referenced */ -+ __ip_set_put(set->binding); -+ set->binding = IP_SET_INVALID_ID; -+ write_unlock_bh(&ip_set_lock); -+ -+ return 0; -+ } else if (strcmp(req_bind->binding, IPSET_TOKEN_ALL) == 0) { -+ /* Flush all bindings */ -+ -+ write_lock_bh(&ip_set_lock); -+ FOREACH_HASH_RW_DO(__set_hash_del_byid, set->id); -+ write_unlock_bh(&ip_set_lock); -+ return 0; -+ } -+ -+ res = __ip_set_testip(set, -+ data + sizeof(struct ip_set_req_bind), -+ size - sizeof(struct ip_set_req_bind), -+ &ip); -+ -+ DP("set %s, ip: %u.%u.%u.%u", set->name, HIPQUAD(ip)); -+ if (res >= 0) -+ res = ip_set_hash_del(set->id, ip); -+ -+ return res; -+} -+ -+static int -+ip_set_testbind(ip_set_id_t index, -+ const void *data, -+ size_t size) -+{ -+ struct ip_set *set = ip_set_list[index]; -+ struct ip_set_req_bind *req_bind; -+ ip_set_id_t binding; -+ ip_set_ip_t ip; -+ int res; -+ -+ IP_SET_ASSERT(set); -+ if (size < sizeof(struct ip_set_req_bind)) -+ return -EINVAL; -+ -+ req_bind = (struct ip_set_req_bind *) data; -+ req_bind->binding[IP_SET_MAXNAMELEN - 1] = '\0'; -+ -+ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) { -+ /* Default binding of set */ -+ char *binding_name; -+ -+ if (size != sizeof(struct ip_set_req_bind) + IP_SET_MAXNAMELEN) -+ return -EINVAL; -+ -+ binding_name = (char *)(data + sizeof(struct ip_set_req_bind)); -+ binding_name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ -+ binding = ip_set_find_byname(binding_name); -+ if (binding == IP_SET_INVALID_ID) -+ return -ENOENT; -+ -+ res = (set->binding == binding) ? -EEXIST : 0; -+ -+ return res; -+ } -+ binding = ip_set_find_byname(req_bind->binding); -+ if (binding == IP_SET_INVALID_ID) -+ return -ENOENT; -+ -+ -+ res = __ip_set_testip(set, -+ data + sizeof(struct ip_set_req_bind), -+ size - sizeof(struct ip_set_req_bind), -+ &ip); -+ DP("set %s, ip: %u.%u.%u.%u, binding %s", -+ set->name, HIPQUAD(ip), ip_set_list[binding]->name); -+ -+ if (res >= 0) -+ res = (ip_set_find_in_hash(set->id, ip) == binding) -+ ? -EEXIST : 0; -+ -+ return res; -+} -+ -+static struct ip_set_type * -+find_set_type_rlock(const char *typename) -+{ -+ struct ip_set_type *type; -+ -+ read_lock_bh(&ip_set_lock); -+ type = find_set_type(typename); -+ if (type == NULL) -+ read_unlock_bh(&ip_set_lock); -+ -+ return type; -+} -+ -+static int -+find_free_id(const char *name, -+ ip_set_id_t *index, -+ ip_set_id_t *id) -+{ -+ ip_set_id_t i; -+ -+ *id = IP_SET_INVALID_ID; -+ for (i = 0; i < ip_set_max; i++) { -+ if (ip_set_list[i] == NULL) { -+ if (*id == IP_SET_INVALID_ID) -+ *id = *index = i; -+ } else if (strcmp(name, ip_set_list[i]->name) == 0) -+ /* Name clash */ -+ return -EEXIST; -+ } -+ if (*id == IP_SET_INVALID_ID) -+ /* No free slot remained */ -+ return -ERANGE; -+ /* Check that index is usable as id (swapping) */ -+ check: -+ for (i = 0; i < ip_set_max; i++) { -+ if (ip_set_list[i] != NULL -+ && ip_set_list[i]->id == *id) { -+ *id = i; -+ goto check; -+ } -+ } -+ return 0; -+} -+ -+/* -+ * Create a set -+ */ -+static int -+ip_set_create(const char *name, -+ const char *typename, -+ ip_set_id_t restore, -+ const void *data, -+ size_t size) -+{ -+ struct ip_set *set; -+ ip_set_id_t index, id; -+ int res = 0; -+ -+ DP("setname: %s, typename: %s, id: %u", name, typename, restore); -+ /* -+ * First, and without any locks, allocate and initialize -+ * a normal base set structure. -+ */ -+ set = kmalloc(sizeof(struct ip_set), GFP_KERNEL); -+ if (!set) -+ return -ENOMEM; -+ set->lock = RW_LOCK_UNLOCKED; -+ strncpy(set->name, name, IP_SET_MAXNAMELEN); -+ set->binding = IP_SET_INVALID_ID; -+ atomic_set(&set->ref, 0); -+ -+ /* -+ * Next, take the &ip_set_lock, check that we know the type, -+ * and take a reference on the type, to make sure it -+ * stays available while constructing our new set. -+ * -+ * After referencing the type, we drop the &ip_set_lock, -+ * and let the new set construction run without locks. -+ */ -+ set->type = find_set_type_rlock(typename); -+ if (set->type == NULL) { -+ /* Try loading the module */ -+ char modulename[IP_SET_MAXNAMELEN + strlen("ip_set_") + 1]; -+ strcpy(modulename, "ip_set_"); -+ strcat(modulename, typename); -+ DP("try to load %s", modulename); -+ request_module(modulename); -+ set->type = find_set_type_rlock(typename); -+ } -+ if (set->type == NULL) { -+ ip_set_printk("no set type '%s', set '%s' not created", -+ typename, name); -+ res = -ENOENT; -+ goto out; -+ } -+ if (!try_module_get(set->type->me)) { -+ read_unlock_bh(&ip_set_lock); -+ res = -EFAULT; -+ goto out; -+ } -+ read_unlock_bh(&ip_set_lock); -+ -+ /* -+ * Without holding any locks, create private part. -+ */ -+ res = set->type->create(set, data, size); -+ if (res != 0) -+ goto put_out; -+ -+ /* BTW, res==0 here. */ -+ -+ /* -+ * Here, we have a valid, constructed set. &ip_set_lock again, -+ * find free id/index and check that it is not already in -+ * ip_set_list. -+ */ -+ write_lock_bh(&ip_set_lock); -+ if ((res = find_free_id(set->name, &index, &id)) != 0) { -+ DP("no free id!"); -+ goto cleanup; -+ } -+ -+ /* Make sure restore gets the same index */ -+ if (restore != IP_SET_INVALID_ID && index != restore) { -+ DP("Can't restore, sets are screwed up"); -+ res = -ERANGE; -+ goto cleanup; -+ } -+ -+ /* -+ * Finally! Add our shiny new set to the list, and be done. -+ */ -+ DP("create: '%s' created with index %u, id %u!", set->name, index, id); -+ set->id = id; -+ ip_set_list[index] = set; -+ write_unlock_bh(&ip_set_lock); -+ return res; -+ -+ cleanup: -+ write_unlock_bh(&ip_set_lock); -+ set->type->destroy(set); -+ put_out: -+ module_put(set->type->me); -+ out: -+ kfree(set); -+ return res; -+} -+ -+/* -+ * Destroy a given existing set -+ */ -+static void -+ip_set_destroy_set(ip_set_id_t index) -+{ -+ struct ip_set *set = ip_set_list[index]; -+ -+ IP_SET_ASSERT(set); -+ DP("set: %s", set->name); -+ write_lock_bh(&ip_set_lock); -+ FOREACH_HASH_RW_DO(__set_hash_del_byid, set->id); -+ if (set->binding != IP_SET_INVALID_ID) -+ __ip_set_put(set->binding); -+ ip_set_list[index] = NULL; -+ write_unlock_bh(&ip_set_lock); -+ -+ /* Must call it without holding any lock */ -+ set->type->destroy(set); -+ module_put(set->type->me); -+ kfree(set); -+} -+ -+/* -+ * Destroy a set - or all sets -+ * Sets must not be referenced/used. -+ */ -+static int -+ip_set_destroy(ip_set_id_t index) -+{ -+ ip_set_id_t i; -+ -+ /* ref modification always protected by the mutex */ -+ if (index != IP_SET_INVALID_ID) { -+ if (atomic_read(&ip_set_list[index]->ref)) -+ return -EBUSY; -+ ip_set_destroy_set(index); -+ } else { -+ for (i = 0; i < ip_set_max; i++) { -+ if (ip_set_list[i] != NULL -+ && (atomic_read(&ip_set_list[i]->ref))) -+ return -EBUSY; -+ } -+ -+ for (i = 0; i < ip_set_max; i++) { -+ if (ip_set_list[i] != NULL) -+ ip_set_destroy_set(i); -+ } -+ } -+ return 0; -+} -+ -+static void -+ip_set_flush_set(struct ip_set *set) -+{ -+ DP("set: %s %u", set->name, set->id); -+ -+ write_lock_bh(&set->lock); -+ set->type->flush(set); -+ write_unlock_bh(&set->lock); -+} -+ -+/* -+ * Flush data in a set - or in all sets -+ */ -+static int -+ip_set_flush(ip_set_id_t index) -+{ -+ if (index != IP_SET_INVALID_ID) { -+ IP_SET_ASSERT(ip_set_list[index]); -+ ip_set_flush_set(ip_set_list[index]); -+ } else -+ FOREACH_SET_DO(ip_set_flush_set); -+ -+ return 0; -+} -+ -+/* Rename a set */ -+static int -+ip_set_rename(ip_set_id_t index, const char *name) -+{ -+ struct ip_set *set = ip_set_list[index]; -+ ip_set_id_t i; -+ int res = 0; -+ -+ DP("set: %s to %s", set->name, name); -+ write_lock_bh(&ip_set_lock); -+ for (i = 0; i < ip_set_max; i++) { -+ if (ip_set_list[i] != NULL -+ && strncmp(ip_set_list[i]->name, -+ name, -+ IP_SET_MAXNAMELEN - 1) == 0) { -+ res = -EEXIST; -+ goto unlock; -+ } -+ } -+ strncpy(set->name, name, IP_SET_MAXNAMELEN); -+ unlock: -+ write_unlock_bh(&ip_set_lock); -+ return res; -+} -+ -+/* -+ * Swap two sets so that name/index points to the other. -+ * References are also swapped. -+ */ -+static int -+ip_set_swap(ip_set_id_t from_index, ip_set_id_t to_index) -+{ -+ struct ip_set *from = ip_set_list[from_index]; -+ struct ip_set *to = ip_set_list[to_index]; -+ char from_name[IP_SET_MAXNAMELEN]; -+ u_int32_t from_ref; -+ -+ DP("set: %s to %s", from->name, to->name); -+ /* Type can't be changed. Artifical restriction. */ -+ if (from->type->typecode != to->type->typecode) -+ return -ENOEXEC; -+ -+ /* No magic here: ref munging protected by the mutex */ -+ write_lock_bh(&ip_set_lock); -+ strncpy(from_name, from->name, IP_SET_MAXNAMELEN); -+ from_ref = atomic_read(&from->ref); -+ -+ strncpy(from->name, to->name, IP_SET_MAXNAMELEN); -+ atomic_set(&from->ref, atomic_read(&to->ref)); -+ strncpy(to->name, from_name, IP_SET_MAXNAMELEN); -+ atomic_set(&to->ref, from_ref); -+ -+ ip_set_list[from_index] = to; -+ ip_set_list[to_index] = from; -+ -+ write_unlock_bh(&ip_set_lock); -+ return 0; -+} -+ -+/* -+ * List set data -+ */ -+ -+static inline void -+__set_hash_bindings_size_list(struct ip_set_hash *set_hash, -+ ip_set_id_t id, size_t *size) -+{ -+ if (set_hash->id == id) -+ *size += sizeof(struct ip_set_hash_list); -+} -+ -+static inline void -+__set_hash_bindings_size_save(struct ip_set_hash *set_hash, -+ ip_set_id_t id, size_t *size) -+{ -+ if (set_hash->id == id) -+ *size += sizeof(struct ip_set_hash_save); -+} -+ -+static inline void -+__set_hash_bindings(struct ip_set_hash *set_hash, -+ ip_set_id_t id, void *data, int *used) -+{ -+ if (set_hash->id == id) { -+ struct ip_set_hash_list *hash_list = -+ (struct ip_set_hash_list *)(data + *used); -+ -+ hash_list->ip = set_hash->ip; -+ hash_list->binding = set_hash->binding; -+ *used += sizeof(struct ip_set_hash_list); -+ } -+} -+ -+static int ip_set_list_set(ip_set_id_t index, -+ void *data, -+ int *used, -+ int len) -+{ -+ struct ip_set *set = ip_set_list[index]; -+ struct ip_set_list *set_list; -+ -+ /* Pointer to our header */ -+ set_list = (struct ip_set_list *) (data + *used); -+ -+ DP("set: %s, used: %d %p %p", set->name, *used, data, data + *used); -+ -+ /* Get and ensure header size */ -+ if (*used + sizeof(struct ip_set_list) > len) -+ goto not_enough_mem; -+ *used += sizeof(struct ip_set_list); -+ -+ read_lock_bh(&set->lock); -+ /* Get and ensure set specific header size */ -+ set_list->header_size = set->type->header_size; -+ if (*used + set_list->header_size > len) -+ goto unlock_set; -+ -+ /* Fill in the header */ -+ set_list->index = index; -+ set_list->binding = set->binding; -+ set_list->ref = atomic_read(&set->ref); -+ -+ /* Fill in set spefific header data */ -+ set->type->list_header(set, data + *used); -+ *used += set_list->header_size; -+ -+ /* Get and ensure set specific members size */ -+ set_list->members_size = set->type->list_members_size(set); -+ if (*used + set_list->members_size > len) -+ goto unlock_set; -+ -+ /* Fill in set spefific members data */ -+ set->type->list_members(set, data + *used); -+ *used += set_list->members_size; -+ read_unlock_bh(&set->lock); -+ -+ /* Bindings */ -+ -+ /* Get and ensure set specific bindings size */ -+ set_list->bindings_size = 0; -+ FOREACH_HASH_DO(__set_hash_bindings_size_list, -+ set->id, &set_list->bindings_size); -+ if (*used + set_list->bindings_size > len) -+ goto not_enough_mem; -+ -+ /* Fill in set spefific bindings data */ -+ FOREACH_HASH_DO(__set_hash_bindings, set->id, data, used); -+ -+ return 0; -+ -+ unlock_set: -+ read_unlock_bh(&set->lock); -+ not_enough_mem: -+ DP("not enough mem, try again"); -+ return -EAGAIN; -+} -+ -+/* -+ * Save sets -+ */ -+static int ip_set_save_set(ip_set_id_t index, -+ void *data, -+ int *used, -+ int len) -+{ -+ struct ip_set *set; -+ struct ip_set_save *set_save; -+ -+ /* Pointer to our header */ -+ set_save = (struct ip_set_save *) (data + *used); -+ -+ /* Get and ensure header size */ -+ if (*used + sizeof(struct ip_set_save) > len) -+ goto not_enough_mem; -+ *used += sizeof(struct ip_set_save); -+ -+ set = ip_set_list[index]; -+ DP("set: %s, used: %u(%u) %p %p", set->name, *used, len, -+ data, data + *used); -+ -+ read_lock_bh(&set->lock); -+ /* Get and ensure set specific header size */ -+ set_save->header_size = set->type->header_size; -+ if (*used + set_save->header_size > len) -+ goto unlock_set; -+ -+ /* Fill in the header */ -+ set_save->index = index; -+ set_save->binding = set->binding; -+ -+ /* Fill in set spefific header data */ -+ set->type->list_header(set, data + *used); -+ *used += set_save->header_size; -+ -+ DP("set header filled: %s, used: %u %p %p", set->name, *used, -+ data, data + *used); -+ /* Get and ensure set specific members size */ -+ set_save->members_size = set->type->list_members_size(set); -+ if (*used + set_save->members_size > len) -+ goto unlock_set; -+ -+ /* Fill in set spefific members data */ -+ set->type->list_members(set, data + *used); -+ *used += set_save->members_size; -+ read_unlock_bh(&set->lock); -+ DP("set members filled: %s, used: %u %p %p", set->name, *used, -+ data, data + *used); -+ return 0; -+ -+ unlock_set: -+ read_unlock_bh(&set->lock); -+ not_enough_mem: -+ DP("not enough mem, try again"); -+ return -EAGAIN; -+} -+ -+static inline void -+__set_hash_save_bindings(struct ip_set_hash *set_hash, -+ ip_set_id_t id, -+ void *data, -+ int *used, -+ int len, -+ int *res) -+{ -+ if (*res == 0 -+ && (id == IP_SET_INVALID_ID || set_hash->id == id)) { -+ struct ip_set_hash_save *hash_save = -+ (struct ip_set_hash_save *)(data + *used); -+ /* Ensure bindings size */ -+ if (*used + sizeof(struct ip_set_hash_save) > len) { -+ *res = -ENOMEM; -+ return; -+ } -+ hash_save->id = set_hash->id; -+ hash_save->ip = set_hash->ip; -+ hash_save->binding = set_hash->binding; -+ *used += sizeof(struct ip_set_hash_save); -+ } -+} -+ -+static int ip_set_save_bindings(ip_set_id_t index, -+ void *data, -+ int *used, -+ int len) -+{ -+ int res = 0; -+ struct ip_set_save *set_save; -+ -+ DP("used %u, len %u", *used, len); -+ /* Get and ensure header size */ -+ if (*used + sizeof(struct ip_set_save) > len) -+ return -ENOMEM; -+ -+ /* Marker */ -+ set_save = (struct ip_set_save *) (data + *used); -+ set_save->index = IP_SET_INVALID_ID; -+ *used += sizeof(struct ip_set_save); -+ -+ DP("marker added used %u, len %u", *used, len); -+ /* Fill in bindings data */ -+ if (index != IP_SET_INVALID_ID) -+ /* Sets are identified by id in hash */ -+ index = ip_set_list[index]->id; -+ FOREACH_HASH_DO(__set_hash_save_bindings, index, data, used, len, &res); -+ -+ return res; -+} -+ -+/* -+ * Restore sets -+ */ -+static int ip_set_restore(void *data, -+ int len) -+{ -+ int res = 0; -+ int line = 0, used = 0, members_size; -+ struct ip_set *set; -+ struct ip_set_hash_save *hash_save; -+ struct ip_set_restore *set_restore; -+ ip_set_id_t index; -+ -+ /* Loop to restore sets */ -+ while (1) { -+ line++; -+ -+ DP("%u %u %u", used, sizeof(struct ip_set_restore), len); -+ /* Get and ensure header size */ -+ if (used + sizeof(struct ip_set_restore) > len) -+ return line; -+ set_restore = (struct ip_set_restore *) (data + used); -+ used += sizeof(struct ip_set_restore); -+ -+ /* Ensure data size */ -+ if (used -+ + set_restore->header_size -+ + set_restore->members_size > len) -+ return line; -+ -+ /* Check marker */ -+ if (set_restore->index == IP_SET_INVALID_ID) { -+ line--; -+ goto bindings; -+ } -+ -+ /* Try to create the set */ -+ DP("restore %s %s", set_restore->name, set_restore->typename); -+ res = ip_set_create(set_restore->name, -+ set_restore->typename, -+ set_restore->index, -+ data + used, -+ set_restore->header_size); -+ -+ if (res != 0) -+ return line; -+ used += set_restore->header_size; -+ -+ index = ip_set_find_byindex(set_restore->index); -+ DP("index %u, restore_index %u", index, set_restore->index); -+ if (index != set_restore->index) -+ return line; -+ /* Try to restore members data */ -+ set = ip_set_list[index]; -+ members_size = 0; -+ DP("members_size %u reqsize %u", -+ set_restore->members_size, set->type->reqsize); -+ while (members_size + set->type->reqsize <= -+ set_restore->members_size) { -+ line++; -+ DP("members: %u, line %u", members_size, line); -+ res = __ip_set_addip(index, -+ data + used + members_size, -+ set->type->reqsize); -+ if (!(res == 0 || res == -EEXIST)) -+ return line; -+ members_size += set->type->reqsize; -+ } -+ -+ DP("members_size %u %u", -+ set_restore->members_size, members_size); -+ if (members_size != set_restore->members_size) -+ return line++; -+ used += set_restore->members_size; -+ } -+ -+ bindings: -+ /* Loop to restore bindings */ -+ while (used < len) { -+ line++; -+ -+ DP("restore binding, line %u", line); -+ /* Get and ensure size */ -+ if (used + sizeof(struct ip_set_hash_save) > len) -+ return line; -+ hash_save = (struct ip_set_hash_save *) (data + used); -+ used += sizeof(struct ip_set_hash_save); -+ -+ /* hash_save->id is used to store the index */ -+ index = ip_set_find_byindex(hash_save->id); -+ DP("restore binding index %u, id %u, %u -> %u", -+ index, hash_save->id, hash_save->ip, hash_save->binding); -+ if (index != hash_save->id) -+ return line; -+ -+ set = ip_set_list[hash_save->id]; -+ /* Null valued IP means default binding */ -+ if (hash_save->ip) -+ res = ip_set_hash_add(set->id, -+ hash_save->ip, -+ hash_save->binding); -+ else { -+ IP_SET_ASSERT(set->binding == IP_SET_INVALID_ID); -+ write_lock_bh(&ip_set_lock); -+ set->binding = hash_save->binding; -+ __ip_set_get(set->binding); -+ write_unlock_bh(&ip_set_lock); -+ DP("default binding: %u", set->binding); -+ } -+ if (res != 0) -+ return line; -+ } -+ if (used != len) -+ return line; -+ -+ return 0; -+} -+ -+static int -+ip_set_sockfn_set(struct sock *sk, int optval, void *user, unsigned int len) -+{ -+ void *data; -+ int res = 0; /* Assume OK */ -+ unsigned *op; -+ struct ip_set_req_adt *req_adt; -+ ip_set_id_t index = IP_SET_INVALID_ID; -+ int (*adtfn)(ip_set_id_t index, -+ const void *data, size_t size); -+ struct fn_table { -+ int (*fn)(ip_set_id_t index, -+ const void *data, size_t size); -+ } adtfn_table[] = -+ { { ip_set_addip }, { ip_set_delip }, { ip_set_testip}, -+ { ip_set_bindip}, { ip_set_unbindip }, { ip_set_testbind }, -+ }; -+ -+ DP("optval=%d, user=%p, len=%d", optval, user, len); -+ if (!capable(CAP_NET_ADMIN)) -+ return -EPERM; -+ if (optval != SO_IP_SET) -+ return -EBADF; -+ if (len <= sizeof(unsigned)) { -+ ip_set_printk("short userdata (want >%zu, got %u)", -+ sizeof(unsigned), len); -+ return -EINVAL; -+ } -+ data = vmalloc(len); -+ if (!data) { -+ DP("out of mem for %u bytes", len); -+ return -ENOMEM; -+ } -+ if (copy_from_user(data, user, len) != 0) { -+ res = -EFAULT; -+ goto done; -+ } -+ if (down_interruptible(&ip_set_app_mutex)) { -+ res = -EINTR; -+ goto done; -+ } -+ -+ op = (unsigned *)data; -+ DP("op=%x", *op); -+ -+ if (*op < IP_SET_OP_VERSION) { -+ /* Check the version at the beginning of operations */ -+ struct ip_set_req_version *req_version = -+ (struct ip_set_req_version *) data; -+ if (req_version->version != IP_SET_PROTOCOL_VERSION) { -+ res = -EPROTO; -+ goto done; -+ } -+ } -+ -+ switch (*op) { -+ case IP_SET_OP_CREATE:{ -+ struct ip_set_req_create *req_create -+ = (struct ip_set_req_create *) data; -+ -+ if (len <= sizeof(struct ip_set_req_create)) { -+ ip_set_printk("short CREATE data (want >%zu, got %u)", -+ sizeof(struct ip_set_req_create), len); -+ res = -EINVAL; -+ goto done; -+ } -+ req_create->name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ req_create->typename[IP_SET_MAXNAMELEN - 1] = '\0'; -+ res = ip_set_create(req_create->name, -+ req_create->typename, -+ IP_SET_INVALID_ID, -+ data + sizeof(struct ip_set_req_create), -+ len - sizeof(struct ip_set_req_create)); -+ goto done; -+ } -+ case IP_SET_OP_DESTROY:{ -+ struct ip_set_req_std *req_destroy -+ = (struct ip_set_req_std *) data; -+ -+ if (len != sizeof(struct ip_set_req_std)) { -+ ip_set_printk("invalid DESTROY data (want %zu, got %u)", -+ sizeof(struct ip_set_req_std), len); -+ res = -EINVAL; -+ goto done; -+ } -+ if (strcmp(req_destroy->name, IPSET_TOKEN_ALL) == 0) { -+ /* Destroy all sets */ -+ index = IP_SET_INVALID_ID; -+ } else { -+ req_destroy->name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ index = ip_set_find_byname(req_destroy->name); -+ -+ if (index == IP_SET_INVALID_ID) { -+ res = -ENOENT; -+ goto done; -+ } -+ } -+ -+ res = ip_set_destroy(index); -+ goto done; -+ } -+ case IP_SET_OP_FLUSH:{ -+ struct ip_set_req_std *req_flush = -+ (struct ip_set_req_std *) data; -+ -+ if (len != sizeof(struct ip_set_req_std)) { -+ ip_set_printk("invalid FLUSH data (want %zu, got %u)", -+ sizeof(struct ip_set_req_std), len); -+ res = -EINVAL; -+ goto done; -+ } -+ if (strcmp(req_flush->name, IPSET_TOKEN_ALL) == 0) { -+ /* Flush all sets */ -+ index = IP_SET_INVALID_ID; -+ } else { -+ req_flush->name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ index = ip_set_find_byname(req_flush->name); -+ -+ if (index == IP_SET_INVALID_ID) { -+ res = -ENOENT; -+ goto done; -+ } -+ } -+ res = ip_set_flush(index); -+ goto done; -+ } -+ case IP_SET_OP_RENAME:{ -+ struct ip_set_req_create *req_rename -+ = (struct ip_set_req_create *) data; -+ -+ if (len != sizeof(struct ip_set_req_create)) { -+ ip_set_printk("invalid RENAME data (want %zu, got %u)", -+ sizeof(struct ip_set_req_create), len); -+ res = -EINVAL; -+ goto done; -+ } -+ -+ req_rename->name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ req_rename->typename[IP_SET_MAXNAMELEN - 1] = '\0'; -+ -+ index = ip_set_find_byname(req_rename->name); -+ if (index == IP_SET_INVALID_ID) { -+ res = -ENOENT; -+ goto done; -+ } -+ res = ip_set_rename(index, req_rename->typename); -+ goto done; -+ } -+ case IP_SET_OP_SWAP:{ -+ struct ip_set_req_create *req_swap -+ = (struct ip_set_req_create *) data; -+ ip_set_id_t to_index; -+ -+ if (len != sizeof(struct ip_set_req_create)) { -+ ip_set_printk("invalid SWAP data (want %zu, got %u)", -+ sizeof(struct ip_set_req_create), len); -+ res = -EINVAL; -+ goto done; -+ } -+ -+ req_swap->name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ req_swap->typename[IP_SET_MAXNAMELEN - 1] = '\0'; -+ -+ index = ip_set_find_byname(req_swap->name); -+ if (index == IP_SET_INVALID_ID) { -+ res = -ENOENT; -+ goto done; -+ } -+ to_index = ip_set_find_byname(req_swap->typename); -+ if (to_index == IP_SET_INVALID_ID) { -+ res = -ENOENT; -+ goto done; -+ } -+ res = ip_set_swap(index, to_index); -+ goto done; -+ } -+ default: -+ break; /* Set identified by id */ -+ } -+ -+ /* There we may have add/del/test/bind/unbind/test_bind operations */ -+ if (*op < IP_SET_OP_ADD_IP || *op > IP_SET_OP_TEST_BIND_SET) { -+ res = -EBADMSG; -+ goto done; -+ } -+ adtfn = adtfn_table[*op - IP_SET_OP_ADD_IP].fn; -+ -+ if (len < sizeof(struct ip_set_req_adt)) { -+ ip_set_printk("short data in adt request (want >=%zu, got %u)", -+ sizeof(struct ip_set_req_adt), len); -+ res = -EINVAL; -+ goto done; -+ } -+ req_adt = (struct ip_set_req_adt *) data; -+ -+ /* -U :all: :all:|:default: uses IP_SET_INVALID_ID */ -+ if (!(*op == IP_SET_OP_UNBIND_SET -+ && req_adt->index == IP_SET_INVALID_ID)) { -+ index = ip_set_find_byindex(req_adt->index); -+ if (index == IP_SET_INVALID_ID) { -+ res = -ENOENT; -+ goto done; -+ } -+ } -+ res = adtfn(index, data, len); -+ -+ done: -+ up(&ip_set_app_mutex); -+ vfree(data); -+ if (res > 0) -+ res = 0; -+ DP("final result %d", res); -+ return res; -+} -+ -+static int -+ip_set_sockfn_get(struct sock *sk, int optval, void *user, int *len) -+{ -+ int res = 0; -+ unsigned *op; -+ ip_set_id_t index = IP_SET_INVALID_ID; -+ void *data; -+ int copylen = *len; -+ -+ DP("optval=%d, user=%p, len=%d", optval, user, *len); -+ if (!capable(CAP_NET_ADMIN)) -+ return -EPERM; -+ if (optval != SO_IP_SET) -+ return -EBADF; -+ if (*len < sizeof(unsigned)) { -+ ip_set_printk("short userdata (want >=%zu, got %d)", -+ sizeof(unsigned), *len); -+ return -EINVAL; -+ } -+ data = vmalloc(*len); -+ if (!data) { -+ DP("out of mem for %d bytes", *len); -+ return -ENOMEM; -+ } -+ if (copy_from_user(data, user, *len) != 0) { -+ res = -EFAULT; -+ goto done; -+ } -+ if (down_interruptible(&ip_set_app_mutex)) { -+ res = -EINTR; -+ goto done; -+ } -+ -+ op = (unsigned *) data; -+ DP("op=%x", *op); -+ -+ if (*op < IP_SET_OP_VERSION) { -+ /* Check the version at the beginning of operations */ -+ struct ip_set_req_version *req_version = -+ (struct ip_set_req_version *) data; -+ if (req_version->version != IP_SET_PROTOCOL_VERSION) { -+ res = -EPROTO; -+ goto done; -+ } -+ } -+ -+ switch (*op) { -+ case IP_SET_OP_VERSION: { -+ struct ip_set_req_version *req_version = -+ (struct ip_set_req_version *) data; -+ -+ if (*len != sizeof(struct ip_set_req_version)) { -+ ip_set_printk("invalid VERSION (want %zu, got %d)", -+ sizeof(struct ip_set_req_version), -+ *len); -+ res = -EINVAL; -+ goto done; -+ } -+ -+ req_version->version = IP_SET_PROTOCOL_VERSION; -+ res = copy_to_user(user, req_version, -+ sizeof(struct ip_set_req_version)); -+ goto done; -+ } -+ case IP_SET_OP_GET_BYNAME: { -+ struct ip_set_req_get_set *req_get -+ = (struct ip_set_req_get_set *) data; -+ -+ if (*len != sizeof(struct ip_set_req_get_set)) { -+ ip_set_printk("invalid GET_BYNAME (want %zu, got %d)", -+ sizeof(struct ip_set_req_get_set), *len); -+ res = -EINVAL; -+ goto done; -+ } -+ req_get->set.name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ index = ip_set_find_byname(req_get->set.name); -+ req_get->set.index = index; -+ goto copy; -+ } -+ case IP_SET_OP_GET_BYINDEX: { -+ struct ip_set_req_get_set *req_get -+ = (struct ip_set_req_get_set *) data; -+ -+ if (*len != sizeof(struct ip_set_req_get_set)) { -+ ip_set_printk("invalid GET_BYINDEX (want %zu, got %d)", -+ sizeof(struct ip_set_req_get_set), *len); -+ res = -EINVAL; -+ goto done; -+ } -+ req_get->set.name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ index = ip_set_find_byindex(req_get->set.index); -+ strncpy(req_get->set.name, -+ index == IP_SET_INVALID_ID ? "" -+ : ip_set_list[index]->name, IP_SET_MAXNAMELEN); -+ goto copy; -+ } -+ case IP_SET_OP_ADT_GET: { -+ struct ip_set_req_adt_get *req_get -+ = (struct ip_set_req_adt_get *) data; -+ -+ if (*len != sizeof(struct ip_set_req_adt_get)) { -+ ip_set_printk("invalid ADT_GET (want %zu, got %d)", -+ sizeof(struct ip_set_req_adt_get), *len); -+ res = -EINVAL; -+ goto done; -+ } -+ req_get->set.name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ index = ip_set_find_byname(req_get->set.name); -+ if (index != IP_SET_INVALID_ID) { -+ req_get->set.index = index; -+ strncpy(req_get->typename, -+ ip_set_list[index]->type->typename, -+ IP_SET_MAXNAMELEN - 1); -+ } else { -+ res = -ENOENT; -+ goto done; -+ } -+ goto copy; -+ } -+ case IP_SET_OP_MAX_SETS: { -+ struct ip_set_req_max_sets *req_max_sets -+ = (struct ip_set_req_max_sets *) data; -+ ip_set_id_t i; -+ -+ if (*len != sizeof(struct ip_set_req_max_sets)) { -+ ip_set_printk("invalid MAX_SETS (want %zu, got %d)", -+ sizeof(struct ip_set_req_max_sets), *len); -+ res = -EINVAL; -+ goto done; -+ } -+ -+ if (strcmp(req_max_sets->set.name, IPSET_TOKEN_ALL) == 0) { -+ req_max_sets->set.index = IP_SET_INVALID_ID; -+ } else { -+ req_max_sets->set.name[IP_SET_MAXNAMELEN - 1] = '\0'; -+ req_max_sets->set.index = -+ ip_set_find_byname(req_max_sets->set.name); -+ if (req_max_sets->set.index == IP_SET_INVALID_ID) { -+ res = -ENOENT; -+ goto done; -+ } -+ } -+ req_max_sets->max_sets = ip_set_max; -+ req_max_sets->sets = 0; -+ for (i = 0; i < ip_set_max; i++) { -+ if (ip_set_list[i] != NULL) -+ req_max_sets->sets++; -+ } -+ goto copy; -+ } -+ case IP_SET_OP_LIST_SIZE: -+ case IP_SET_OP_SAVE_SIZE: { -+ struct ip_set_req_setnames *req_setnames -+ = (struct ip_set_req_setnames *) data; -+ struct ip_set_name_list *name_list; -+ struct ip_set *set; -+ ip_set_id_t i; -+ int used; -+ -+ if (*len < sizeof(struct ip_set_req_setnames)) { -+ ip_set_printk("short LIST_SIZE (want >=%zu, got %d)", -+ sizeof(struct ip_set_req_setnames), *len); -+ res = -EINVAL; -+ goto done; -+ } -+ -+ req_setnames->size = 0; -+ used = sizeof(struct ip_set_req_setnames); -+ for (i = 0; i < ip_set_max; i++) { -+ if (ip_set_list[i] == NULL) -+ continue; -+ name_list = (struct ip_set_name_list *) -+ (data + used); -+ used += sizeof(struct ip_set_name_list); -+ if (used > copylen) { -+ res = -EAGAIN; -+ goto done; -+ } -+ set = ip_set_list[i]; -+ /* Fill in index, name, etc. */ -+ name_list->index = i; -+ name_list->id = set->id; -+ strncpy(name_list->name, -+ set->name, -+ IP_SET_MAXNAMELEN - 1); -+ strncpy(name_list->typename, -+ set->type->typename, -+ IP_SET_MAXNAMELEN - 1); -+ DP("filled %s of type %s, index %u\n", -+ name_list->name, name_list->typename, -+ name_list->index); -+ if (!(req_setnames->index == IP_SET_INVALID_ID -+ || req_setnames->index == i)) -+ continue; -+ /* Update size */ -+ switch (*op) { -+ case IP_SET_OP_LIST_SIZE: { -+ req_setnames->size += sizeof(struct ip_set_list) -+ + set->type->header_size -+ + set->type->list_members_size(set); -+ FOREACH_HASH_DO(__set_hash_bindings_size_list, -+ i, &req_setnames->size); -+ break; -+ } -+ case IP_SET_OP_SAVE_SIZE: { -+ req_setnames->size += sizeof(struct ip_set_save) -+ + set->type->header_size -+ + set->type->list_members_size(set); -+ FOREACH_HASH_DO(__set_hash_bindings_size_save, -+ i, &req_setnames->size); -+ break; -+ } -+ default: -+ break; -+ } -+ } -+ if (copylen != used) { -+ res = -EAGAIN; -+ goto done; -+ } -+ goto copy; -+ } -+ case IP_SET_OP_LIST: { -+ struct ip_set_req_list *req_list -+ = (struct ip_set_req_list *) data; -+ ip_set_id_t i; -+ int used; -+ -+ if (*len < sizeof(struct ip_set_req_list)) { -+ ip_set_printk("short LIST (want >=%zu, got %d)", -+ sizeof(struct ip_set_req_list), *len); -+ res = -EINVAL; -+ goto done; -+ } -+ index = req_list->index; -+ if (index != IP_SET_INVALID_ID -+ && ip_set_find_byindex(index) != index) { -+ res = -ENOENT; -+ goto done; -+ } -+ used = 0; -+ if (index == IP_SET_INVALID_ID) { -+ /* List all sets */ -+ for (i = 0; i < ip_set_max && res == 0; i++) { -+ if (ip_set_list[i] != NULL) -+ res = ip_set_list_set(i, data, &used, *len); -+ } -+ } else { -+ /* List an individual set */ -+ res = ip_set_list_set(index, data, &used, *len); -+ } -+ if (res != 0) -+ goto done; -+ else if (copylen != used) { -+ res = -EAGAIN; -+ goto done; -+ } -+ goto copy; -+ } -+ case IP_SET_OP_SAVE: { -+ struct ip_set_req_list *req_save -+ = (struct ip_set_req_list *) data; -+ ip_set_id_t i; -+ int used; -+ -+ if (*len < sizeof(struct ip_set_req_list)) { -+ ip_set_printk("short SAVE (want >=%zu, got %d)", -+ sizeof(struct ip_set_req_list), *len); -+ res = -EINVAL; -+ goto done; -+ } -+ index = req_save->index; -+ if (index != IP_SET_INVALID_ID -+ && ip_set_find_byindex(index) != index) { -+ res = -ENOENT; -+ goto done; -+ } -+ used = 0; -+ if (index == IP_SET_INVALID_ID) { -+ /* Save all sets */ -+ for (i = 0; i < ip_set_max && res == 0; i++) { -+ if (ip_set_list[i] != NULL) -+ res = ip_set_save_set(i, data, &used, *len); -+ } -+ } else { -+ /* Save an individual set */ -+ res = ip_set_save_set(index, data, &used, *len); -+ } -+ if (res == 0) -+ res = ip_set_save_bindings(index, data, &used, *len); -+ -+ if (res != 0) -+ goto done; -+ else if (copylen != used) { -+ res = -EAGAIN; -+ goto done; -+ } -+ goto copy; -+ } -+ case IP_SET_OP_RESTORE: { -+ struct ip_set_req_setnames *req_restore -+ = (struct ip_set_req_setnames *) data; -+ int line; -+ -+ if (*len < sizeof(struct ip_set_req_setnames) -+ || *len != req_restore->size) { -+ ip_set_printk("invalid RESTORE (want =%zu, got %d)", -+ req_restore->size, *len); -+ res = -EINVAL; -+ goto done; -+ } -+ line = ip_set_restore(data + sizeof(struct ip_set_req_setnames), -+ req_restore->size - sizeof(struct ip_set_req_setnames)); -+ DP("ip_set_restore: %u", line); -+ if (line != 0) { -+ res = -EAGAIN; -+ req_restore->size = line; -+ copylen = sizeof(struct ip_set_req_setnames); -+ goto copy; -+ } -+ goto done; -+ } -+ default: -+ res = -EBADMSG; -+ goto done; -+ } /* end of switch(op) */ -+ -+ copy: -+ DP("set %s, copylen %u", index != IP_SET_INVALID_ID -+ && ip_set_list[index] -+ ? ip_set_list[index]->name -+ : ":all:", copylen); -+ if (res == 0) -+ res = copy_to_user(user, data, copylen); -+ else -+ copy_to_user(user, data, copylen); -+ -+ done: -+ up(&ip_set_app_mutex); -+ vfree(data); -+ if (res > 0) -+ res = 0; -+ DP("final result %d", res); -+ return res; -+} -+ -+static struct nf_sockopt_ops so_set = { -+ .pf = PF_INET, -+ .set_optmin = SO_IP_SET, -+ .set_optmax = SO_IP_SET + 1, -+ .set = &ip_set_sockfn_set, -+ .get_optmin = SO_IP_SET, -+ .get_optmax = SO_IP_SET + 1, -+ .get = &ip_set_sockfn_get, -+ .use = 0 -+}; -+ -+static int max_sets, hash_size; -+module_param(max_sets, int, 0600); -+MODULE_PARM_DESC(max_sets, "maximal number of sets"); -+module_param(hash_size, int, 0600); -+MODULE_PARM_DESC(hash_size, "hash size for bindings"); -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jozsef Kadlecsik "); -+MODULE_DESCRIPTION("module implementing core IP set support"); -+ -+static int __init init(void) -+{ -+ int res; -+ ip_set_id_t i; -+ -+ get_random_bytes(&ip_set_hash_random, 4); -+ if (max_sets) -+ ip_set_max = max_sets; -+ ip_set_list = vmalloc(sizeof(struct ip_set *) * ip_set_max); -+ if (!ip_set_list) { -+ printk(KERN_ERR "Unable to create ip_set_list\n"); -+ return -ENOMEM; -+ } -+ memset(ip_set_list, 0, sizeof(struct ip_set *) * ip_set_max); -+ if (hash_size) -+ ip_set_bindings_hash_size = hash_size; -+ ip_set_hash = vmalloc(sizeof(struct list_head) * ip_set_bindings_hash_size); -+ if (!ip_set_hash) { -+ printk(KERN_ERR "Unable to create ip_set_hash\n"); -+ vfree(ip_set_list); -+ return -ENOMEM; -+ } -+ for (i = 0; i < ip_set_bindings_hash_size; i++) -+ INIT_LIST_HEAD(&ip_set_hash[i]); -+ -+ INIT_LIST_HEAD(&set_type_list); -+ -+ res = nf_register_sockopt(&so_set); -+ if (res != 0) { -+ ip_set_printk("SO_SET registry failed: %d", res); -+ vfree(ip_set_list); -+ vfree(ip_set_hash); -+ return res; -+ } -+ return 0; -+} -+ -+static void __exit fini(void) -+{ -+ /* There can't be any existing set or binding */ -+ nf_unregister_sockopt(&so_set); -+ vfree(ip_set_list); -+ vfree(ip_set_hash); -+ DP("these are the famous last words"); -+} -+ -+EXPORT_SYMBOL(ip_set_register_set_type); -+EXPORT_SYMBOL(ip_set_unregister_set_type); -+ -+EXPORT_SYMBOL(ip_set_get_byname); -+EXPORT_SYMBOL(ip_set_get_byindex); -+EXPORT_SYMBOL(ip_set_put); -+ -+EXPORT_SYMBOL(ip_set_addip_kernel); -+EXPORT_SYMBOL(ip_set_delip_kernel); -+EXPORT_SYMBOL(ip_set_testip_kernel); -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_iphash.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_iphash.c ---- linux-2.6.19.old/net/ipv4/netfilter/ip_set_iphash.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_iphash.c 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,379 @@ -+/* Copyright (C) 2003-2004 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* Kernel module implementing an ip hash set */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+#include -+#include -+#include -+#include -+ -+static inline __u32 -+jhash_ip(const struct ip_set_iphash *map, ip_set_ip_t ip) -+{ -+ return jhash_1word(ip, map->initval); -+} -+ -+static inline __u32 -+randhash_ip(const struct ip_set_iphash *map, ip_set_ip_t ip) -+{ -+ return (1 + ip % map->prime); -+} -+ -+static inline __u32 -+hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; -+ __u32 jhash, randhash, id; -+ u_int16_t i; -+ -+ *hash_ip = ip & map->netmask; -+ jhash = jhash_ip(map, *hash_ip); -+ randhash = randhash_ip(map, *hash_ip); -+ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u, %u.%u.%u.%u", -+ set->name, HIPQUAD(ip), HIPQUAD(*hash_ip), HIPQUAD(map->netmask)); -+ -+ for (i = 0; i < map->probes; i++) { -+ id = (jhash + i * randhash) % map->hashsize; -+ DP("hash key: %u", id); -+ if (map->members[id] == *hash_ip) -+ return id; -+ /* No shortcut at testing - there can be deleted -+ * entries. */ -+ } -+ return UINT_MAX; -+} -+ -+static inline int -+__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ return (hash_id(set, ip, hash_ip) != UINT_MAX); -+} -+ -+static int -+testip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_iphash *req = -+ (struct ip_set_req_iphash *) data; -+ -+ if (size != sizeof(struct ip_set_req_iphash)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_iphash), -+ size); -+ return -EINVAL; -+ } -+ return __testip(set, req->ip, hash_ip); -+} -+ -+static int -+testip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ return __testip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+} -+ -+static inline int -+__addip(struct ip_set_iphash *map, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ __u32 jhash, randhash, probe; -+ u_int16_t i; -+ -+ *hash_ip = ip & map->netmask; -+ jhash = jhash_ip(map, *hash_ip); -+ randhash = randhash_ip(map, *hash_ip); -+ -+ for (i = 0; i < map->probes; i++) { -+ probe = (jhash + i * randhash) % map->hashsize; -+ if (map->members[probe] == *hash_ip) -+ return -EEXIST; -+ if (!map->members[probe]) { -+ map->members[probe] = *hash_ip; -+ return 0; -+ } -+ } -+ /* Trigger rehashing */ -+ return -EAGAIN; -+} -+ -+static int -+addip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_iphash *req = -+ (struct ip_set_req_iphash *) data; -+ -+ if (size != sizeof(struct ip_set_req_iphash)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_iphash), -+ size); -+ return -EINVAL; -+ } -+ return __addip((struct ip_set_iphash *) set->data, req->ip, hash_ip); -+} -+ -+static int -+addip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ return __addip((struct ip_set_iphash *) set->data, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+} -+ -+static int retry(struct ip_set *set) -+{ -+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; -+ ip_set_ip_t hash_ip, *members; -+ u_int32_t i, hashsize; -+ unsigned newbytes; -+ int res; -+ struct ip_set_iphash tmp = { -+ .hashsize = map->hashsize, -+ .probes = map->probes, -+ .resize = map->resize, -+ .netmask = map->netmask, -+ }; -+ -+ if (map->resize == 0) -+ return -ERANGE; -+ -+ again: -+ res = 0; -+ -+ /* Calculate new parameters */ -+ get_random_bytes(&tmp.initval, 4); -+ hashsize = tmp.hashsize + (tmp.hashsize * map->resize)/100; -+ if (hashsize == tmp.hashsize) -+ hashsize++; -+ tmp.prime = make_prime(hashsize); -+ -+ ip_set_printk("rehashing of set %s triggered: " -+ "hashsize grows from %u to %u", -+ set->name, tmp.hashsize, hashsize); -+ tmp.hashsize = hashsize; -+ -+ newbytes = hashsize * sizeof(ip_set_ip_t); -+ tmp.members = ip_set_malloc_atomic(newbytes); -+ if (!tmp.members) { -+ DP("out of memory for %d bytes", newbytes); -+ return -ENOMEM; -+ } -+ memset(tmp.members, 0, newbytes); -+ -+ write_lock_bh(&set->lock); -+ map = (struct ip_set_iphash *) set->data; /* Play safe */ -+ for (i = 0; i < map->hashsize && res == 0; i++) { -+ if (map->members[i]) -+ res = __addip(&tmp, map->members[i], &hash_ip); -+ } -+ if (res) { -+ /* Failure, try again */ -+ write_unlock_bh(&set->lock); -+ ip_set_free(tmp.members, newbytes); -+ goto again; -+ } -+ -+ /* Success at resizing! */ -+ members = map->members; -+ hashsize = map->hashsize; -+ -+ map->initval = tmp.initval; -+ map->prime = tmp.prime; -+ map->hashsize = tmp.hashsize; -+ map->members = tmp.members; -+ write_unlock_bh(&set->lock); -+ -+ ip_set_free(members, hashsize * sizeof(ip_set_ip_t)); -+ -+ return 0; -+} -+ -+static inline int -+__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; -+ ip_set_ip_t id = hash_id(set, ip, hash_ip); -+ -+ if (id == UINT_MAX) -+ return -EEXIST; -+ -+ map->members[id] = 0; -+ return 0; -+} -+ -+static int -+delip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_iphash *req = -+ (struct ip_set_req_iphash *) data; -+ -+ if (size != sizeof(struct ip_set_req_iphash)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_iphash), -+ size); -+ return -EINVAL; -+ } -+ return __delip(set, req->ip, hash_ip); -+} -+ -+static int -+delip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ return __delip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+} -+ -+static int create(struct ip_set *set, const void *data, size_t size) -+{ -+ unsigned newbytes; -+ struct ip_set_req_iphash_create *req = -+ (struct ip_set_req_iphash_create *) data; -+ struct ip_set_iphash *map; -+ -+ if (size != sizeof(struct ip_set_req_iphash_create)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_iphash_create), -+ size); -+ return -EINVAL; -+ } -+ -+ if (req->hashsize < 1) { -+ ip_set_printk("hashsize too small"); -+ return -ENOEXEC; -+ } -+ -+ map = kmalloc(sizeof(struct ip_set_iphash), GFP_KERNEL); -+ if (!map) { -+ DP("out of memory for %d bytes", -+ sizeof(struct ip_set_iphash)); -+ return -ENOMEM; -+ } -+ get_random_bytes(&map->initval, 4); -+ map->prime = make_prime(req->hashsize); -+ map->hashsize = req->hashsize; -+ map->probes = req->probes; -+ map->resize = req->resize; -+ map->netmask = req->netmask; -+ newbytes = map->hashsize * sizeof(ip_set_ip_t); -+ map->members = ip_set_malloc(newbytes); -+ if (!map->members) { -+ DP("out of memory for %d bytes", newbytes); -+ kfree(map); -+ return -ENOMEM; -+ } -+ memset(map->members, 0, newbytes); -+ -+ set->data = map; -+ return 0; -+} -+ -+static void destroy(struct ip_set *set) -+{ -+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; -+ -+ ip_set_free(map->members, map->hashsize * sizeof(ip_set_ip_t)); -+ kfree(map); -+ -+ set->data = NULL; -+} -+ -+static void flush(struct ip_set *set) -+{ -+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; -+ memset(map->members, 0, map->hashsize * sizeof(ip_set_ip_t)); -+} -+ -+static void list_header(const struct ip_set *set, void *data) -+{ -+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; -+ struct ip_set_req_iphash_create *header = -+ (struct ip_set_req_iphash_create *) data; -+ -+ header->hashsize = map->hashsize; -+ header->probes = map->probes; -+ header->resize = map->resize; -+ header->netmask = map->netmask; -+} -+ -+static int list_members_size(const struct ip_set *set) -+{ -+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; -+ -+ return (map->hashsize * sizeof(ip_set_ip_t)); -+} -+ -+static void list_members(const struct ip_set *set, void *data) -+{ -+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; -+ int bytes = map->hashsize * sizeof(ip_set_ip_t); -+ -+ memcpy(data, map->members, bytes); -+} -+ -+static struct ip_set_type ip_set_iphash = { -+ .typename = SETTYPE_NAME, -+ .typecode = IPSET_TYPE_IP, -+ .protocol_version = IP_SET_PROTOCOL_VERSION, -+ .create = &create, -+ .destroy = &destroy, -+ .flush = &flush, -+ .reqsize = sizeof(struct ip_set_req_iphash), -+ .addip = &addip, -+ .addip_kernel = &addip_kernel, -+ .retry = &retry, -+ .delip = &delip, -+ .delip_kernel = &delip_kernel, -+ .testip = &testip, -+ .testip_kernel = &testip_kernel, -+ .header_size = sizeof(struct ip_set_req_iphash_create), -+ .list_header = &list_header, -+ .list_members_size = &list_members_size, -+ .list_members = &list_members, -+ .me = THIS_MODULE, -+}; -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jozsef Kadlecsik "); -+MODULE_DESCRIPTION("iphash type of IP sets"); -+ -+static int __init init(void) -+{ -+ init_max_malloc_size(); -+ return ip_set_register_set_type(&ip_set_iphash); -+} -+ -+static void __exit fini(void) -+{ -+ /* FIXME: possible race with ip_set_create() */ -+ ip_set_unregister_set_type(&ip_set_iphash); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_ipmap.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_ipmap.c ---- linux-2.6.19.old/net/ipv4/netfilter/ip_set_ipmap.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_ipmap.c 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,313 @@ -+/* Copyright (C) 2000-2002 Joakim Axelsson -+ * Patrick Schaaf -+ * Copyright (C) 2003-2004 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* Kernel module implementing an IP set type: the single bitmap type */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+static inline ip_set_ip_t -+ip_to_id(const struct ip_set_ipmap *map, ip_set_ip_t ip) -+{ -+ return (ip - map->first_ip)/map->hosts; -+} -+ -+static inline int -+__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; -+ -+ if (ip < map->first_ip || ip > map->last_ip) -+ return -ERANGE; -+ -+ *hash_ip = ip & map->netmask; -+ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u", -+ set->name, HIPQUAD(ip), HIPQUAD(*hash_ip)); -+ return !!test_bit(ip_to_id(map, *hash_ip), map->members); -+} -+ -+static int -+testip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_ipmap *req = -+ (struct ip_set_req_ipmap *) data; -+ -+ if (size != sizeof(struct ip_set_req_ipmap)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_ipmap), -+ size); -+ return -EINVAL; -+ } -+ return __testip(set, req->ip, hash_ip); -+} -+ -+static int -+testip_kernel(struct ip_set *set, -+ const struct sk_buff *skb, -+ u_int32_t flags, -+ ip_set_ip_t *hash_ip) -+{ -+ int res; -+ -+ DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", -+ flags & IPSET_SRC ? "SRC" : "DST", -+ NIPQUAD(skb->nh.iph->saddr), -+ NIPQUAD(skb->nh.iph->daddr)); -+ -+ res = __testip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+ return (res < 0 ? 0 : res); -+} -+ -+static inline int -+__addip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; -+ -+ if (ip < map->first_ip || ip > map->last_ip) -+ return -ERANGE; -+ -+ *hash_ip = ip & map->netmask; -+ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip)); -+ if (test_and_set_bit(ip_to_id(map, *hash_ip), map->members)) -+ return -EEXIST; -+ -+ return 0; -+} -+ -+static int -+addip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_ipmap *req = -+ (struct ip_set_req_ipmap *) data; -+ -+ if (size != sizeof(struct ip_set_req_ipmap)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_ipmap), -+ size); -+ return -EINVAL; -+ } -+ DP("%u.%u.%u.%u", HIPQUAD(req->ip)); -+ return __addip(set, req->ip, hash_ip); -+} -+ -+static int -+addip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ return __addip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+} -+ -+static inline int -+__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; -+ -+ if (ip < map->first_ip || ip > map->last_ip) -+ return -ERANGE; -+ -+ *hash_ip = ip & map->netmask; -+ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip)); -+ if (!test_and_clear_bit(ip_to_id(map, *hash_ip), map->members)) -+ return -EEXIST; -+ -+ return 0; -+} -+ -+static int -+delip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_ipmap *req = -+ (struct ip_set_req_ipmap *) data; -+ -+ if (size != sizeof(struct ip_set_req_ipmap)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_ipmap), -+ size); -+ return -EINVAL; -+ } -+ return __delip(set, req->ip, hash_ip); -+} -+ -+static int -+delip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ return __delip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+} -+ -+static int create(struct ip_set *set, const void *data, size_t size) -+{ -+ int newbytes; -+ struct ip_set_req_ipmap_create *req = -+ (struct ip_set_req_ipmap_create *) data; -+ struct ip_set_ipmap *map; -+ -+ if (size != sizeof(struct ip_set_req_ipmap_create)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_ipmap_create), -+ size); -+ return -EINVAL; -+ } -+ -+ DP("from %u.%u.%u.%u to %u.%u.%u.%u", -+ HIPQUAD(req->from), HIPQUAD(req->to)); -+ -+ if (req->from > req->to) { -+ DP("bad ip range"); -+ return -ENOEXEC; -+ } -+ -+ if (req->to - req->from > MAX_RANGE) { -+ ip_set_printk("range too big (max %d addresses)", -+ MAX_RANGE); -+ return -ENOEXEC; -+ } -+ -+ map = kmalloc(sizeof(struct ip_set_ipmap), GFP_KERNEL); -+ if (!map) { -+ DP("out of memory for %d bytes", -+ sizeof(struct ip_set_ipmap)); -+ return -ENOMEM; -+ } -+ map->first_ip = req->from; -+ map->last_ip = req->to; -+ map->netmask = req->netmask; -+ -+ if (req->netmask == 0xFFFFFFFF) { -+ map->hosts = 1; -+ map->sizeid = map->last_ip - map->first_ip + 1; -+ } else { -+ unsigned int mask_bits, netmask_bits; -+ ip_set_ip_t mask; -+ -+ map->first_ip &= map->netmask; /* Should we better bark? */ -+ -+ mask = range_to_mask(map->first_ip, map->last_ip, &mask_bits); -+ netmask_bits = mask_to_bits(map->netmask); -+ -+ if (!mask || netmask_bits <= mask_bits) -+ return -ENOEXEC; -+ -+ map->hosts = 2 << (32 - netmask_bits - 1); -+ map->sizeid = 2 << (netmask_bits - mask_bits - 1); -+ } -+ newbytes = bitmap_bytes(0, map->sizeid - 1); -+ map->members = kmalloc(newbytes, GFP_KERNEL); -+ if (!map->members) { -+ DP("out of memory for %d bytes", newbytes); -+ kfree(map); -+ return -ENOMEM; -+ } -+ memset(map->members, 0, newbytes); -+ -+ set->data = map; -+ return 0; -+} -+ -+static void destroy(struct ip_set *set) -+{ -+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; -+ -+ kfree(map->members); -+ kfree(map); -+ -+ set->data = NULL; -+} -+ -+static void flush(struct ip_set *set) -+{ -+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; -+ memset(map->members, 0, bitmap_bytes(0, map->sizeid - 1)); -+} -+ -+static void list_header(const struct ip_set *set, void *data) -+{ -+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; -+ struct ip_set_req_ipmap_create *header = -+ (struct ip_set_req_ipmap_create *) data; -+ -+ header->from = map->first_ip; -+ header->to = map->last_ip; -+ header->netmask = map->netmask; -+} -+ -+static int list_members_size(const struct ip_set *set) -+{ -+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; -+ -+ return bitmap_bytes(0, map->sizeid - 1); -+} -+ -+static void list_members(const struct ip_set *set, void *data) -+{ -+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; -+ int bytes = bitmap_bytes(0, map->sizeid - 1); -+ -+ memcpy(data, map->members, bytes); -+} -+ -+static struct ip_set_type ip_set_ipmap = { -+ .typename = SETTYPE_NAME, -+ .typecode = IPSET_TYPE_IP, -+ .protocol_version = IP_SET_PROTOCOL_VERSION, -+ .create = &create, -+ .destroy = &destroy, -+ .flush = &flush, -+ .reqsize = sizeof(struct ip_set_req_ipmap), -+ .addip = &addip, -+ .addip_kernel = &addip_kernel, -+ .delip = &delip, -+ .delip_kernel = &delip_kernel, -+ .testip = &testip, -+ .testip_kernel = &testip_kernel, -+ .header_size = sizeof(struct ip_set_req_ipmap_create), -+ .list_header = &list_header, -+ .list_members_size = &list_members_size, -+ .list_members = &list_members, -+ .me = THIS_MODULE, -+}; -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jozsef Kadlecsik "); -+MODULE_DESCRIPTION("ipmap type of IP sets"); -+ -+static int __init init(void) -+{ -+ return ip_set_register_set_type(&ip_set_ipmap); -+} -+ -+static void __exit fini(void) -+{ -+ /* FIXME: possible race with ip_set_create() */ -+ ip_set_unregister_set_type(&ip_set_ipmap); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_iptree.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_iptree.c ---- linux-2.6.19.old/net/ipv4/netfilter/ip_set_iptree.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_iptree.c 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,510 @@ -+/* Copyright (C) 2005 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* Kernel module implementing an IP set type: the iptree type */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+/* Garbage collection interval in seconds: */ -+#define IPTREE_GC_TIME 5*60 -+/* Sleep so many milliseconds before trying again -+ * to delete the gc timer at destroying a set */ -+#define IPTREE_DESTROY_SLEEP 100 -+ -+static kmem_cache_t *branch_cachep; -+static kmem_cache_t *leaf_cachep; -+ -+#define ABCD(a,b,c,d,addrp) do { \ -+ a = ((unsigned char *)addrp)[3]; \ -+ b = ((unsigned char *)addrp)[2]; \ -+ c = ((unsigned char *)addrp)[1]; \ -+ d = ((unsigned char *)addrp)[0]; \ -+} while (0) -+ -+#define TESTIP_WALK(map, elem, branch) do { \ -+ if ((map)->tree[elem]) { \ -+ branch = (map)->tree[elem]; \ -+ } else \ -+ return 0; \ -+} while (0) -+ -+static inline int -+__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ struct ip_set_iptreeb *btree; -+ struct ip_set_iptreec *ctree; -+ struct ip_set_iptreed *dtree; -+ unsigned char a,b,c,d; -+ -+ *hash_ip = ip; -+ ABCD(a, b, c, d, hash_ip); -+ DP("%u %u %u %u timeout %u", a, b, c, d, map->timeout); -+ TESTIP_WALK(map, a, btree); -+ TESTIP_WALK(btree, b, ctree); -+ TESTIP_WALK(ctree, c, dtree); -+ DP("%lu %lu", dtree->expires[d], jiffies); -+ return !!(map->timeout ? (time_after(dtree->expires[d], jiffies)) -+ : dtree->expires[d]); -+} -+ -+static int -+testip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_iptree *req = -+ (struct ip_set_req_iptree *) data; -+ -+ if (size != sizeof(struct ip_set_req_iptree)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_iptree), -+ size); -+ return -EINVAL; -+ } -+ return __testip(set, req->ip, hash_ip); -+} -+ -+static int -+testip_kernel(struct ip_set *set, -+ const struct sk_buff *skb, -+ u_int32_t flags, -+ ip_set_ip_t *hash_ip) -+{ -+ int res; -+ -+ DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", -+ flags & IPSET_SRC ? "SRC" : "DST", -+ NIPQUAD(skb->nh.iph->saddr), -+ NIPQUAD(skb->nh.iph->daddr)); -+ -+ res = __testip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+ return (res < 0 ? 0 : res); -+} -+ -+#define ADDIP_WALK(map, elem, branch, type, cachep) do { \ -+ if ((map)->tree[elem]) { \ -+ DP("found %u", elem); \ -+ branch = (map)->tree[elem]; \ -+ } else { \ -+ branch = (type *) \ -+ kmem_cache_alloc(cachep, GFP_KERNEL); \ -+ if (branch == NULL) \ -+ return -ENOMEM; \ -+ memset(branch, 0, sizeof(*branch)); \ -+ (map)->tree[elem] = branch; \ -+ DP("alloc %u", elem); \ -+ } \ -+} while (0) -+ -+static inline int -+__addip(struct ip_set *set, ip_set_ip_t ip, unsigned int timeout, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ struct ip_set_iptreeb *btree; -+ struct ip_set_iptreec *ctree; -+ struct ip_set_iptreed *dtree; -+ unsigned char a,b,c,d; -+ int ret = 0; -+ -+ *hash_ip = ip; -+ ABCD(a, b, c, d, hash_ip); -+ DP("%u %u %u %u timeout %u", a, b, c, d, timeout); -+ ADDIP_WALK(map, a, btree, struct ip_set_iptreeb, branch_cachep); -+ ADDIP_WALK(btree, b, ctree, struct ip_set_iptreec, branch_cachep); -+ ADDIP_WALK(ctree, c, dtree, struct ip_set_iptreed, leaf_cachep); -+ if (dtree->expires[d] -+ && (!map->timeout || time_after(dtree->expires[d], jiffies))) -+ ret = -EEXIST; -+ dtree->expires[d] = map->timeout ? (timeout * HZ + jiffies) : 1; -+ DP("%u %lu", d, dtree->expires[d]); -+ return ret; -+} -+ -+static int -+addip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ struct ip_set_req_iptree *req = -+ (struct ip_set_req_iptree *) data; -+ -+ if (size != sizeof(struct ip_set_req_iptree)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_iptree), -+ size); -+ return -EINVAL; -+ } -+ DP("%u.%u.%u.%u %u", HIPQUAD(req->ip), req->timeout); -+ return __addip(set, req->ip, -+ req->timeout ? req->timeout : map->timeout, -+ hash_ip); -+} -+ -+static int -+addip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ -+ return __addip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ map->timeout, -+ hash_ip); -+} -+ -+#define DELIP_WALK(map, elem, branch) do { \ -+ if ((map)->tree[elem]) { \ -+ branch = (map)->tree[elem]; \ -+ } else \ -+ return -EEXIST; \ -+} while (0) -+ -+static inline int -+__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ struct ip_set_iptreeb *btree; -+ struct ip_set_iptreec *ctree; -+ struct ip_set_iptreed *dtree; -+ unsigned char a,b,c,d; -+ -+ *hash_ip = ip; -+ ABCD(a, b, c, d, hash_ip); -+ DELIP_WALK(map, a, btree); -+ DELIP_WALK(btree, b, ctree); -+ DELIP_WALK(ctree, c, dtree); -+ -+ if (dtree->expires[d]) { -+ dtree->expires[d] = 0; -+ return 0; -+ } -+ return -EEXIST; -+} -+ -+static int -+delip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_iptree *req = -+ (struct ip_set_req_iptree *) data; -+ -+ if (size != sizeof(struct ip_set_req_iptree)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_iptree), -+ size); -+ return -EINVAL; -+ } -+ return __delip(set, req->ip, hash_ip); -+} -+ -+static int -+delip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ return __delip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+} -+ -+#define LOOP_WALK_BEGIN(map, i, branch) \ -+ for (i = 0; i < 255; i++) { \ -+ if (!(map)->tree[i]) \ -+ continue; \ -+ branch = (map)->tree[i] -+ -+#define LOOP_WALK_END } -+ -+static void ip_tree_gc(unsigned long ul_set) -+{ -+ struct ip_set *set = (void *) ul_set; -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ struct ip_set_iptreeb *btree; -+ struct ip_set_iptreec *ctree; -+ struct ip_set_iptreed *dtree; -+ unsigned char a,b,c,d; -+ unsigned char i,j,k; -+ -+ i = j = k = 0; -+ DP("gc: %s", set->name); -+ write_lock_bh(&set->lock); -+ LOOP_WALK_BEGIN(map, a, btree); -+ LOOP_WALK_BEGIN(btree, b, ctree); -+ LOOP_WALK_BEGIN(ctree, c, dtree); -+ for (d = 0; d < 255; d++) { -+ if (dtree->expires[d]) { -+ DP("gc: %u %u %u %u: expires %lu jiffies %lu", -+ a, b, c, d, -+ dtree->expires[d], jiffies); -+ if (map->timeout -+ && time_before(dtree->expires[d], jiffies)) -+ dtree->expires[d] = 0; -+ else -+ k = 1; -+ } -+ } -+ if (k == 0) { -+ DP("gc: %s: leaf %u %u %u empty", -+ set->name, a, b, c); -+ kmem_cache_free(leaf_cachep, dtree); -+ ctree->tree[c] = NULL; -+ } else { -+ DP("gc: %s: leaf %u %u %u not empty", -+ set->name, a, b, c); -+ j = 1; -+ k = 0; -+ } -+ LOOP_WALK_END; -+ if (j == 0) { -+ DP("gc: %s: branch %u %u empty", -+ set->name, a, b); -+ kmem_cache_free(branch_cachep, ctree); -+ btree->tree[b] = NULL; -+ } else { -+ DP("gc: %s: branch %u %u not empty", -+ set->name, a, b); -+ i = 1; -+ j = k = 0; -+ } -+ LOOP_WALK_END; -+ if (i == 0) { -+ DP("gc: %s: branch %u empty", -+ set->name, a); -+ kmem_cache_free(branch_cachep, btree); -+ map->tree[a] = NULL; -+ } else { -+ DP("gc: %s: branch %u not empty", -+ set->name, a); -+ i = j = k = 0; -+ } -+ LOOP_WALK_END; -+ write_unlock_bh(&set->lock); -+ -+ map->gc.expires = jiffies + map->gc_interval * HZ; -+ add_timer(&map->gc); -+} -+ -+static int create(struct ip_set *set, const void *data, size_t size) -+{ -+ struct ip_set_req_iptree_create *req = -+ (struct ip_set_req_iptree_create *) data; -+ struct ip_set_iptree *map; -+ -+ if (size != sizeof(struct ip_set_req_iptree_create)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_iptree_create), -+ size); -+ return -EINVAL; -+ } -+ -+ map = kmalloc(sizeof(struct ip_set_iptree), GFP_KERNEL); -+ if (!map) { -+ DP("out of memory for %d bytes", -+ sizeof(struct ip_set_iptree)); -+ return -ENOMEM; -+ } -+ memset(map, 0, sizeof(*map)); -+ map->timeout = req->timeout; -+ set->data = map; -+ -+ /* If there is no timeout for the entries, -+ * we still have to call gc because delete -+ * do not clean up empty branches */ -+ map->gc_interval = IPTREE_GC_TIME; -+ init_timer(&map->gc); -+ map->gc.data = (unsigned long) set; -+ map->gc.function = ip_tree_gc; -+ map->gc.expires = jiffies + map->gc_interval * HZ; -+ add_timer(&map->gc); -+ -+ return 0; -+} -+ -+static void __flush(struct ip_set_iptree *map) -+{ -+ struct ip_set_iptreeb *btree; -+ struct ip_set_iptreec *ctree; -+ struct ip_set_iptreed *dtree; -+ unsigned int a,b,c; -+ -+ LOOP_WALK_BEGIN(map, a, btree); -+ LOOP_WALK_BEGIN(btree, b, ctree); -+ LOOP_WALK_BEGIN(ctree, c, dtree); -+ kmem_cache_free(leaf_cachep, dtree); -+ LOOP_WALK_END; -+ kmem_cache_free(branch_cachep, ctree); -+ LOOP_WALK_END; -+ kmem_cache_free(branch_cachep, btree); -+ LOOP_WALK_END; -+} -+ -+static void destroy(struct ip_set *set) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ -+ while (!del_timer(&map->gc)) -+ msleep(IPTREE_DESTROY_SLEEP); -+ __flush(map); -+ kfree(map); -+ set->data = NULL; -+} -+ -+static void flush(struct ip_set *set) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ unsigned int timeout = map->timeout; -+ -+ __flush(map); -+ memset(map, 0, sizeof(*map)); -+ map->timeout = timeout; -+} -+ -+static void list_header(const struct ip_set *set, void *data) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ struct ip_set_req_iptree_create *header = -+ (struct ip_set_req_iptree_create *) data; -+ -+ header->timeout = map->timeout; -+} -+ -+static int list_members_size(const struct ip_set *set) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ struct ip_set_iptreeb *btree; -+ struct ip_set_iptreec *ctree; -+ struct ip_set_iptreed *dtree; -+ unsigned char a,b,c,d; -+ unsigned int count = 0; -+ -+ LOOP_WALK_BEGIN(map, a, btree); -+ LOOP_WALK_BEGIN(btree, b, ctree); -+ LOOP_WALK_BEGIN(ctree, c, dtree); -+ for (d = 0; d < 255; d++) { -+ if (dtree->expires[d] -+ && (!map->timeout || time_after(dtree->expires[d], jiffies))) -+ count++; -+ } -+ LOOP_WALK_END; -+ LOOP_WALK_END; -+ LOOP_WALK_END; -+ -+ DP("members %u", count); -+ return (count * sizeof(struct ip_set_req_iptree)); -+} -+ -+static void list_members(const struct ip_set *set, void *data) -+{ -+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; -+ struct ip_set_iptreeb *btree; -+ struct ip_set_iptreec *ctree; -+ struct ip_set_iptreed *dtree; -+ unsigned char a,b,c,d; -+ size_t offset = 0; -+ struct ip_set_req_iptree *entry; -+ -+ LOOP_WALK_BEGIN(map, a, btree); -+ LOOP_WALK_BEGIN(btree, b, ctree); -+ LOOP_WALK_BEGIN(ctree, c, dtree); -+ for (d = 0; d < 255; d++) { -+ if (dtree->expires[d] -+ && (!map->timeout || time_after(dtree->expires[d], jiffies))) { -+ entry = (struct ip_set_req_iptree *)(data + offset); -+ entry->ip = ((a << 24) | (b << 16) | (c << 8) | d); -+ entry->timeout = !map->timeout ? 0 -+ : (dtree->expires[d] - jiffies)/HZ; -+ offset += sizeof(struct ip_set_req_iptree); -+ } -+ } -+ LOOP_WALK_END; -+ LOOP_WALK_END; -+ LOOP_WALK_END; -+} -+ -+static struct ip_set_type ip_set_iptree = { -+ .typename = SETTYPE_NAME, -+ .typecode = IPSET_TYPE_IP, -+ .protocol_version = IP_SET_PROTOCOL_VERSION, -+ .create = &create, -+ .destroy = &destroy, -+ .flush = &flush, -+ .reqsize = sizeof(struct ip_set_req_iptree), -+ .addip = &addip, -+ .addip_kernel = &addip_kernel, -+ .delip = &delip, -+ .delip_kernel = &delip_kernel, -+ .testip = &testip, -+ .testip_kernel = &testip_kernel, -+ .header_size = sizeof(struct ip_set_req_iptree_create), -+ .list_header = &list_header, -+ .list_members_size = &list_members_size, -+ .list_members = &list_members, -+ .me = THIS_MODULE, -+}; -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jozsef Kadlecsik "); -+MODULE_DESCRIPTION("iptree type of IP sets"); -+ -+static int __init init(void) -+{ -+ int ret; -+ -+ branch_cachep = kmem_cache_create("ip_set_iptreeb", -+ sizeof(struct ip_set_iptreeb), -+ 0, 0, NULL, NULL); -+ if (!branch_cachep) { -+ printk(KERN_ERR "Unable to create ip_set_iptreeb slab cache\n"); -+ ret = -ENOMEM; -+ goto out; -+ } -+ leaf_cachep = kmem_cache_create("ip_set_iptreed", -+ sizeof(struct ip_set_iptreed), -+ 0, 0, NULL, NULL); -+ if (!leaf_cachep) { -+ printk(KERN_ERR "Unable to create ip_set_iptreed slab cache\n"); -+ ret = -ENOMEM; -+ goto free_branch; -+ } -+ ret = ip_set_register_set_type(&ip_set_iptree); -+ if (ret == 0) -+ goto out; -+ -+ kmem_cache_destroy(leaf_cachep); -+ free_branch: -+ kmem_cache_destroy(branch_cachep); -+ out: -+ return ret; -+} -+ -+static void __exit fini(void) -+{ -+ /* FIXME: possible race with ip_set_create() */ -+ ip_set_unregister_set_type(&ip_set_iptree); -+ kmem_cache_destroy(leaf_cachep); -+ kmem_cache_destroy(branch_cachep); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_macipmap.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_macipmap.c ---- linux-2.6.19.old/net/ipv4/netfilter/ip_set_macipmap.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_macipmap.c 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,338 @@ -+/* Copyright (C) 2000-2002 Joakim Axelsson -+ * Patrick Schaaf -+ * Martin Josefsson -+ * Copyright (C) 2003-2004 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* Kernel module implementing an IP set type: the macipmap type */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+ -+static int -+testip(struct ip_set *set, const void *data, size_t size, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_macipmap *map = (struct ip_set_macipmap *) set->data; -+ struct ip_set_macip *table = (struct ip_set_macip *) map->members; -+ struct ip_set_req_macipmap *req = (struct ip_set_req_macipmap *) data; -+ -+ if (size != sizeof(struct ip_set_req_macipmap)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_macipmap), -+ size); -+ return -EINVAL; -+ } -+ -+ if (req->ip < map->first_ip || req->ip > map->last_ip) -+ return -ERANGE; -+ -+ *hash_ip = req->ip; -+ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u", -+ set->name, HIPQUAD(req->ip), HIPQUAD(*hash_ip)); -+ if (test_bit(IPSET_MACIP_ISSET, -+ (void *) &table[req->ip - map->first_ip].flags)) { -+ return (memcmp(req->ethernet, -+ &table[req->ip - map->first_ip].ethernet, -+ ETH_ALEN) == 0); -+ } else { -+ return (map->flags & IPSET_MACIP_MATCHUNSET ? 1 : 0); -+ } -+} -+ -+static int -+testip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_macipmap *map = -+ (struct ip_set_macipmap *) set->data; -+ struct ip_set_macip *table = -+ (struct ip_set_macip *) map->members; -+ ip_set_ip_t ip; -+ -+ ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr); -+ DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", -+ flags & IPSET_SRC ? "SRC" : "DST", -+ NIPQUAD(skb->nh.iph->saddr), -+ NIPQUAD(skb->nh.iph->daddr)); -+ -+ if (ip < map->first_ip || ip > map->last_ip) -+ return 0; -+ -+ *hash_ip = ip; -+ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u", -+ set->name, HIPQUAD(ip), HIPQUAD(*hash_ip)); -+ if (test_bit(IPSET_MACIP_ISSET, -+ (void *) &table[ip - map->first_ip].flags)) { -+ /* Is mac pointer valid? -+ * If so, compare... */ -+ return (skb->mac.raw >= skb->head -+ && (skb->mac.raw + ETH_HLEN) <= skb->data -+ && (memcmp(eth_hdr(skb)->h_source, -+ &table[ip - map->first_ip].ethernet, -+ ETH_ALEN) == 0)); -+ } else { -+ return (map->flags & IPSET_MACIP_MATCHUNSET ? 1 : 0); -+ } -+} -+ -+/* returns 0 on success */ -+static inline int -+__addip(struct ip_set *set, -+ ip_set_ip_t ip, unsigned char *ethernet, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_macipmap *map = -+ (struct ip_set_macipmap *) set->data; -+ struct ip_set_macip *table = -+ (struct ip_set_macip *) map->members; -+ -+ if (ip < map->first_ip || ip > map->last_ip) -+ return -ERANGE; -+ if (test_and_set_bit(IPSET_MACIP_ISSET, -+ (void *) &table[ip - map->first_ip].flags)) -+ return -EEXIST; -+ -+ *hash_ip = ip; -+ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip)); -+ memcpy(&table[ip - map->first_ip].ethernet, ethernet, ETH_ALEN); -+ return 0; -+} -+ -+static int -+addip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_macipmap *req = -+ (struct ip_set_req_macipmap *) data; -+ -+ if (size != sizeof(struct ip_set_req_macipmap)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_macipmap), -+ size); -+ return -EINVAL; -+ } -+ return __addip(set, req->ip, req->ethernet, hash_ip); -+} -+ -+static int -+addip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ ip_set_ip_t ip; -+ -+ ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr); -+ -+ if (!(skb->mac.raw >= skb->head -+ && (skb->mac.raw + ETH_HLEN) <= skb->data)) -+ return -EINVAL; -+ -+ return __addip(set, ip, eth_hdr(skb)->h_source, hash_ip); -+} -+ -+static inline int -+__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_macipmap *map = -+ (struct ip_set_macipmap *) set->data; -+ struct ip_set_macip *table = -+ (struct ip_set_macip *) map->members; -+ -+ if (ip < map->first_ip || ip > map->last_ip) -+ return -ERANGE; -+ if (!test_and_clear_bit(IPSET_MACIP_ISSET, -+ (void *)&table[ip - map->first_ip].flags)) -+ return -EEXIST; -+ -+ *hash_ip = ip; -+ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip)); -+ return 0; -+} -+ -+static int -+delip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_macipmap *req = -+ (struct ip_set_req_macipmap *) data; -+ -+ if (size != sizeof(struct ip_set_req_macipmap)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_macipmap), -+ size); -+ return -EINVAL; -+ } -+ return __delip(set, req->ip, hash_ip); -+} -+ -+static int -+delip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ return __delip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+} -+ -+static inline size_t members_size(ip_set_id_t from, ip_set_id_t to) -+{ -+ return (size_t)((to - from + 1) * sizeof(struct ip_set_macip)); -+} -+ -+static int create(struct ip_set *set, const void *data, size_t size) -+{ -+ int newbytes; -+ struct ip_set_req_macipmap_create *req = -+ (struct ip_set_req_macipmap_create *) data; -+ struct ip_set_macipmap *map; -+ -+ if (size != sizeof(struct ip_set_req_macipmap_create)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_macipmap_create), -+ size); -+ return -EINVAL; -+ } -+ -+ DP("from %u.%u.%u.%u to %u.%u.%u.%u", -+ HIPQUAD(req->from), HIPQUAD(req->to)); -+ -+ if (req->from > req->to) { -+ DP("bad ip range"); -+ return -ENOEXEC; -+ } -+ -+ if (req->to - req->from > MAX_RANGE) { -+ ip_set_printk("range too big (max %d addresses)", -+ MAX_RANGE); -+ return -ENOEXEC; -+ } -+ -+ map = kmalloc(sizeof(struct ip_set_macipmap), GFP_KERNEL); -+ if (!map) { -+ DP("out of memory for %d bytes", -+ sizeof(struct ip_set_macipmap)); -+ return -ENOMEM; -+ } -+ map->flags = req->flags; -+ map->first_ip = req->from; -+ map->last_ip = req->to; -+ newbytes = members_size(map->first_ip, map->last_ip); -+ map->members = ip_set_malloc(newbytes); -+ if (!map->members) { -+ DP("out of memory for %d bytes", newbytes); -+ kfree(map); -+ return -ENOMEM; -+ } -+ memset(map->members, 0, newbytes); -+ -+ set->data = map; -+ return 0; -+} -+ -+static void destroy(struct ip_set *set) -+{ -+ struct ip_set_macipmap *map = -+ (struct ip_set_macipmap *) set->data; -+ -+ ip_set_free(map->members, members_size(map->first_ip, map->last_ip)); -+ kfree(map); -+ -+ set->data = NULL; -+} -+ -+static void flush(struct ip_set *set) -+{ -+ struct ip_set_macipmap *map = -+ (struct ip_set_macipmap *) set->data; -+ memset(map->members, 0, members_size(map->first_ip, map->last_ip)); -+} -+ -+static void list_header(const struct ip_set *set, void *data) -+{ -+ struct ip_set_macipmap *map = -+ (struct ip_set_macipmap *) set->data; -+ struct ip_set_req_macipmap_create *header = -+ (struct ip_set_req_macipmap_create *) data; -+ -+ DP("list_header %x %x %u", map->first_ip, map->last_ip, -+ map->flags); -+ -+ header->from = map->first_ip; -+ header->to = map->last_ip; -+ header->flags = map->flags; -+} -+ -+static int list_members_size(const struct ip_set *set) -+{ -+ struct ip_set_macipmap *map = -+ (struct ip_set_macipmap *) set->data; -+ -+ return members_size(map->first_ip, map->last_ip); -+} -+ -+static void list_members(const struct ip_set *set, void *data) -+{ -+ struct ip_set_macipmap *map = -+ (struct ip_set_macipmap *) set->data; -+ -+ int bytes = members_size(map->first_ip, map->last_ip); -+ -+ memcpy(data, map->members, bytes); -+} -+ -+static struct ip_set_type ip_set_macipmap = { -+ .typename = SETTYPE_NAME, -+ .typecode = IPSET_TYPE_IP, -+ .protocol_version = IP_SET_PROTOCOL_VERSION, -+ .create = &create, -+ .destroy = &destroy, -+ .flush = &flush, -+ .reqsize = sizeof(struct ip_set_req_macipmap), -+ .addip = &addip, -+ .addip_kernel = &addip_kernel, -+ .delip = &delip, -+ .delip_kernel = &delip_kernel, -+ .testip = &testip, -+ .testip_kernel = &testip_kernel, -+ .header_size = sizeof(struct ip_set_req_macipmap_create), -+ .list_header = &list_header, -+ .list_members_size = &list_members_size, -+ .list_members = &list_members, -+ .me = THIS_MODULE, -+}; -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jozsef Kadlecsik "); -+MODULE_DESCRIPTION("macipmap type of IP sets"); -+ -+static int __init init(void) -+{ -+ init_max_malloc_size(); -+ return ip_set_register_set_type(&ip_set_macipmap); -+} -+ -+static void __exit fini(void) -+{ -+ /* FIXME: possible race with ip_set_create() */ -+ ip_set_unregister_set_type(&ip_set_macipmap); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_nethash.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_nethash.c ---- linux-2.6.19.old/net/ipv4/netfilter/ip_set_nethash.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_nethash.c 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,449 @@ -+/* Copyright (C) 2003-2004 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* Kernel module implementing a cidr nethash set */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+#include -+#include -+#include -+#include -+ -+static inline __u32 -+jhash_ip(const struct ip_set_nethash *map, ip_set_ip_t ip) -+{ -+ return jhash_1word(ip, map->initval); -+} -+ -+static inline __u32 -+randhash_ip(const struct ip_set_nethash *map, ip_set_ip_t ip) -+{ -+ return (1 + ip % map->prime); -+} -+ -+static inline __u32 -+hash_id_cidr(struct ip_set_nethash *map, -+ ip_set_ip_t ip, -+ unsigned char cidr, -+ ip_set_ip_t *hash_ip) -+{ -+ __u32 jhash, randhash, id; -+ u_int16_t i; -+ -+ *hash_ip = pack(ip, cidr); -+ jhash = jhash_ip(map, *hash_ip); -+ randhash = randhash_ip(map, *hash_ip); -+ -+ for (i = 0; i < map->probes; i++) { -+ id = (jhash + i * randhash) % map->hashsize; -+ DP("hash key: %u", id); -+ if (map->members[id] == *hash_ip) -+ return id; -+ } -+ return UINT_MAX; -+} -+ -+static inline __u32 -+hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ __u32 id = UINT_MAX; -+ int i; -+ -+ for (i = 0; i < 30 && map->cidr[i]; i++) { -+ id = hash_id_cidr(map, ip, map->cidr[i], hash_ip); -+ if (id != UINT_MAX) -+ break; -+ } -+ return id; -+} -+ -+static inline int -+__testip_cidr(struct ip_set *set, ip_set_ip_t ip, unsigned char cidr, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ -+ return (hash_id_cidr(map, ip, cidr, hash_ip) != UINT_MAX); -+} -+ -+static inline int -+__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) -+{ -+ return (hash_id(set, ip, hash_ip) != UINT_MAX); -+} -+ -+static int -+testip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_nethash *req = -+ (struct ip_set_req_nethash *) data; -+ -+ if (size != sizeof(struct ip_set_req_nethash)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_nethash), -+ size); -+ return -EINVAL; -+ } -+ return (req->cidr == 32 ? __testip(set, req->ip, hash_ip) -+ : __testip_cidr(set, req->ip, req->cidr, hash_ip)); -+} -+ -+static int -+testip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ return __testip(set, -+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr), -+ hash_ip); -+} -+ -+static inline int -+__addip_base(struct ip_set_nethash *map, ip_set_ip_t ip) -+{ -+ __u32 jhash, randhash, probe; -+ u_int16_t i; -+ -+ jhash = jhash_ip(map, ip); -+ randhash = randhash_ip(map, ip); -+ -+ for (i = 0; i < map->probes; i++) { -+ probe = (jhash + i * randhash) % map->hashsize; -+ if (map->members[probe] == ip) -+ return -EEXIST; -+ if (!map->members[probe]) { -+ map->members[probe] = ip; -+ return 0; -+ } -+ } -+ /* Trigger rehashing */ -+ return -EAGAIN; -+} -+ -+static inline int -+__addip(struct ip_set_nethash *map, ip_set_ip_t ip, unsigned char cidr, -+ ip_set_ip_t *hash_ip) -+{ -+ *hash_ip = pack(ip, cidr); -+ DP("%u.%u.%u.%u/%u, %u.%u.%u.%u", HIPQUAD(ip), cidr, HIPQUAD(*hash_ip)); -+ -+ return __addip_base(map, *hash_ip); -+} -+ -+static void -+update_cidr_sizes(struct ip_set_nethash *map, unsigned char cidr) -+{ -+ unsigned char next; -+ int i; -+ -+ for (i = 0; i < 30 && map->cidr[i]; i++) { -+ if (map->cidr[i] == cidr) { -+ return; -+ } else if (map->cidr[i] < cidr) { -+ next = map->cidr[i]; -+ map->cidr[i] = cidr; -+ cidr = next; -+ } -+ } -+ if (i < 30) -+ map->cidr[i] = cidr; -+} -+ -+static int -+addip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_nethash *req = -+ (struct ip_set_req_nethash *) data; -+ int ret; -+ -+ if (size != sizeof(struct ip_set_req_nethash)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_nethash), -+ size); -+ return -EINVAL; -+ } -+ ret = __addip((struct ip_set_nethash *) set->data, -+ req->ip, req->cidr, hash_ip); -+ -+ if (ret == 0) -+ update_cidr_sizes((struct ip_set_nethash *) set->data, -+ req->cidr); -+ -+ return ret; -+} -+ -+static int -+addip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ int ret = -ERANGE; -+ ip_set_ip_t ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr); -+ -+ if (map->cidr[0]) -+ ret = __addip(map, ip, map->cidr[0], hash_ip); -+ -+ return ret; -+} -+ -+static int retry(struct ip_set *set) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ ip_set_ip_t *members; -+ u_int32_t i, hashsize; -+ unsigned newbytes; -+ int res; -+ struct ip_set_nethash tmp = { -+ .hashsize = map->hashsize, -+ .probes = map->probes, -+ .resize = map->resize -+ }; -+ -+ if (map->resize == 0) -+ return -ERANGE; -+ -+ memcpy(tmp.cidr, map->cidr, 30 * sizeof(unsigned char)); -+ again: -+ res = 0; -+ -+ /* Calculate new parameters */ -+ get_random_bytes(&tmp.initval, 4); -+ hashsize = tmp.hashsize + (tmp.hashsize * map->resize)/100; -+ if (hashsize == tmp.hashsize) -+ hashsize++; -+ tmp.prime = make_prime(hashsize); -+ -+ ip_set_printk("rehashing of set %s triggered: " -+ "hashsize grows from %u to %u", -+ set->name, tmp.hashsize, hashsize); -+ tmp.hashsize = hashsize; -+ -+ newbytes = hashsize * sizeof(ip_set_ip_t); -+ tmp.members = ip_set_malloc_atomic(newbytes); -+ if (!tmp.members) { -+ DP("out of memory for %d bytes", newbytes); -+ return -ENOMEM; -+ } -+ memset(tmp.members, 0, newbytes); -+ -+ write_lock_bh(&set->lock); -+ map = (struct ip_set_nethash *) set->data; /* Play safe */ -+ for (i = 0; i < map->hashsize && res == 0; i++) { -+ if (map->members[i]) -+ res = __addip_base(&tmp, map->members[i]); -+ } -+ if (res) { -+ /* Failure, try again */ -+ write_unlock_bh(&set->lock); -+ ip_set_free(tmp.members, newbytes); -+ goto again; -+ } -+ -+ /* Success at resizing! */ -+ members = map->members; -+ hashsize = map->hashsize; -+ -+ map->initval = tmp.initval; -+ map->prime = tmp.prime; -+ map->hashsize = tmp.hashsize; -+ map->members = tmp.members; -+ write_unlock_bh(&set->lock); -+ -+ ip_set_free(members, hashsize * sizeof(ip_set_ip_t)); -+ -+ return 0; -+} -+ -+static inline int -+__delip(struct ip_set_nethash *map, ip_set_ip_t ip, unsigned char cidr, -+ ip_set_ip_t *hash_ip) -+{ -+ ip_set_ip_t id = hash_id_cidr(map, ip, cidr, hash_ip); -+ -+ if (id == UINT_MAX) -+ return -EEXIST; -+ -+ map->members[id] = 0; -+ return 0; -+} -+ -+static int -+delip(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_req_nethash *req = -+ (struct ip_set_req_nethash *) data; -+ -+ if (size != sizeof(struct ip_set_req_nethash)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_nethash), -+ size); -+ return -EINVAL; -+ } -+ /* TODO: no garbage collection in map->cidr */ -+ return __delip((struct ip_set_nethash *) set->data, -+ req->ip, req->cidr, hash_ip); -+} -+ -+static int -+delip_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_ip) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ int ret = -ERANGE; -+ ip_set_ip_t ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr -+ : skb->nh.iph->daddr); -+ -+ if (map->cidr[0]) -+ ret = __delip(map, ip, map->cidr[0], hash_ip); -+ -+ return ret; -+} -+ -+static int create(struct ip_set *set, const void *data, size_t size) -+{ -+ unsigned newbytes; -+ struct ip_set_req_nethash_create *req = -+ (struct ip_set_req_nethash_create *) data; -+ struct ip_set_nethash *map; -+ -+ if (size != sizeof(struct ip_set_req_nethash_create)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_nethash_create), -+ size); -+ return -EINVAL; -+ } -+ -+ if (req->hashsize < 1) { -+ ip_set_printk("hashsize too small"); -+ return -ENOEXEC; -+ } -+ -+ map = kmalloc(sizeof(struct ip_set_nethash), GFP_KERNEL); -+ if (!map) { -+ DP("out of memory for %d bytes", -+ sizeof(struct ip_set_nethash)); -+ return -ENOMEM; -+ } -+ get_random_bytes(&map->initval, 4); -+ map->prime = make_prime(req->hashsize); -+ map->hashsize = req->hashsize; -+ map->probes = req->probes; -+ map->resize = req->resize; -+ memset(map->cidr, 0, 30 * sizeof(unsigned char)); -+ newbytes = map->hashsize * sizeof(ip_set_ip_t); -+ map->members = ip_set_malloc(newbytes); -+ if (!map->members) { -+ DP("out of memory for %d bytes", newbytes); -+ kfree(map); -+ return -ENOMEM; -+ } -+ memset(map->members, 0, newbytes); -+ -+ set->data = map; -+ return 0; -+} -+ -+static void destroy(struct ip_set *set) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ -+ ip_set_free(map->members, map->hashsize * sizeof(ip_set_ip_t)); -+ kfree(map); -+ -+ set->data = NULL; -+} -+ -+static void flush(struct ip_set *set) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ memset(map->members, 0, map->hashsize * sizeof(ip_set_ip_t)); -+ memset(map->cidr, 0, 30 * sizeof(unsigned char)); -+} -+ -+static void list_header(const struct ip_set *set, void *data) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ struct ip_set_req_nethash_create *header = -+ (struct ip_set_req_nethash_create *) data; -+ -+ header->hashsize = map->hashsize; -+ header->probes = map->probes; -+ header->resize = map->resize; -+} -+ -+static int list_members_size(const struct ip_set *set) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ -+ return (map->hashsize * sizeof(ip_set_ip_t)); -+} -+ -+static void list_members(const struct ip_set *set, void *data) -+{ -+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; -+ int bytes = map->hashsize * sizeof(ip_set_ip_t); -+ -+ memcpy(data, map->members, bytes); -+} -+ -+static struct ip_set_type ip_set_nethash = { -+ .typename = SETTYPE_NAME, -+ .typecode = IPSET_TYPE_IP, -+ .protocol_version = IP_SET_PROTOCOL_VERSION, -+ .create = &create, -+ .destroy = &destroy, -+ .flush = &flush, -+ .reqsize = sizeof(struct ip_set_req_nethash), -+ .addip = &addip, -+ .addip_kernel = &addip_kernel, -+ .retry = &retry, -+ .delip = &delip, -+ .delip_kernel = &delip_kernel, -+ .testip = &testip, -+ .testip_kernel = &testip_kernel, -+ .header_size = sizeof(struct ip_set_req_nethash_create), -+ .list_header = &list_header, -+ .list_members_size = &list_members_size, -+ .list_members = &list_members, -+ .me = THIS_MODULE, -+}; -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jozsef Kadlecsik "); -+MODULE_DESCRIPTION("nethash type of IP sets"); -+ -+static int __init init(void) -+{ -+ return ip_set_register_set_type(&ip_set_nethash); -+} -+ -+static void __exit fini(void) -+{ -+ /* FIXME: possible race with ip_set_create() */ -+ ip_set_unregister_set_type(&ip_set_nethash); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_portmap.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_portmap.c ---- linux-2.6.19.old/net/ipv4/netfilter/ip_set_portmap.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_portmap.c 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,325 @@ -+/* Copyright (C) 2003-2004 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* Kernel module implementing a port set type as a bitmap */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+#include -+ -+/* We must handle non-linear skbs */ -+static inline ip_set_ip_t -+get_port(const struct sk_buff *skb, u_int32_t flags) -+{ -+ struct iphdr *iph = skb->nh.iph; -+ u_int16_t offset = ntohs(iph->frag_off) & IP_OFFSET; -+ -+ switch (iph->protocol) { -+ case IPPROTO_TCP: { -+ struct tcphdr tcph; -+ -+ /* See comments at tcp_match in ip_tables.c */ -+ if (offset) -+ return INVALID_PORT; -+ -+ if (skb_copy_bits(skb, skb->nh.iph->ihl*4, &tcph, sizeof(tcph)) < 0) -+ /* No choice either */ -+ return INVALID_PORT; -+ -+ return ntohs(flags & IPSET_SRC ? -+ tcph.source : tcph.dest); -+ } -+ case IPPROTO_UDP: { -+ struct udphdr udph; -+ -+ if (offset) -+ return INVALID_PORT; -+ -+ if (skb_copy_bits(skb, skb->nh.iph->ihl*4, &udph, sizeof(udph)) < 0) -+ /* No choice either */ -+ return INVALID_PORT; -+ -+ return ntohs(flags & IPSET_SRC ? -+ udph.source : udph.dest); -+ } -+ default: -+ return INVALID_PORT; -+ } -+} -+ -+static inline int -+__testport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) -+{ -+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; -+ -+ if (port < map->first_port || port > map->last_port) -+ return -ERANGE; -+ -+ *hash_port = port; -+ DP("set: %s, port:%u, %u", set->name, port, *hash_port); -+ return !!test_bit(port - map->first_port, map->members); -+} -+ -+static int -+testport(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_port) -+{ -+ struct ip_set_req_portmap *req = -+ (struct ip_set_req_portmap *) data; -+ -+ if (size != sizeof(struct ip_set_req_portmap)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_portmap), -+ size); -+ return -EINVAL; -+ } -+ return __testport(set, req->port, hash_port); -+} -+ -+static int -+testport_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_port) -+{ -+ int res; -+ ip_set_ip_t port = get_port(skb, flags); -+ -+ DP("flag %s port %u", flags & IPSET_SRC ? "SRC" : "DST", port); -+ if (port == INVALID_PORT) -+ return 0; -+ -+ res = __testport(set, port, hash_port); -+ -+ return (res < 0 ? 0 : res); -+} -+ -+static inline int -+__addport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) -+{ -+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; -+ -+ if (port < map->first_port || port > map->last_port) -+ return -ERANGE; -+ if (test_and_set_bit(port - map->first_port, map->members)) -+ return -EEXIST; -+ -+ *hash_port = port; -+ DP("port %u", port); -+ return 0; -+} -+ -+static int -+addport(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_port) -+{ -+ struct ip_set_req_portmap *req = -+ (struct ip_set_req_portmap *) data; -+ -+ if (size != sizeof(struct ip_set_req_portmap)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_portmap), -+ size); -+ return -EINVAL; -+ } -+ return __addport(set, req->port, hash_port); -+} -+ -+static int -+addport_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_port) -+{ -+ ip_set_ip_t port = get_port(skb, flags); -+ -+ if (port == INVALID_PORT) -+ return -EINVAL; -+ -+ return __addport(set, port, hash_port); -+} -+ -+static inline int -+__delport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) -+{ -+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; -+ -+ if (port < map->first_port || port > map->last_port) -+ return -ERANGE; -+ if (!test_and_clear_bit(port - map->first_port, map->members)) -+ return -EEXIST; -+ -+ *hash_port = port; -+ DP("port %u", port); -+ return 0; -+} -+ -+static int -+delport(struct ip_set *set, const void *data, size_t size, -+ ip_set_ip_t *hash_port) -+{ -+ struct ip_set_req_portmap *req = -+ (struct ip_set_req_portmap *) data; -+ -+ if (size != sizeof(struct ip_set_req_portmap)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_portmap), -+ size); -+ return -EINVAL; -+ } -+ return __delport(set, req->port, hash_port); -+} -+ -+static int -+delport_kernel(struct ip_set *set, const struct sk_buff *skb, -+ u_int32_t flags, ip_set_ip_t *hash_port) -+{ -+ ip_set_ip_t port = get_port(skb, flags); -+ -+ if (port == INVALID_PORT) -+ return -EINVAL; -+ -+ return __delport(set, port, hash_port); -+} -+ -+static int create(struct ip_set *set, const void *data, size_t size) -+{ -+ int newbytes; -+ struct ip_set_req_portmap_create *req = -+ (struct ip_set_req_portmap_create *) data; -+ struct ip_set_portmap *map; -+ -+ if (size != sizeof(struct ip_set_req_portmap_create)) { -+ ip_set_printk("data length wrong (want %zu, have %zu)", -+ sizeof(struct ip_set_req_portmap_create), -+ size); -+ return -EINVAL; -+ } -+ -+ DP("from %u to %u", req->from, req->to); -+ -+ if (req->from > req->to) { -+ DP("bad port range"); -+ return -ENOEXEC; -+ } -+ -+ if (req->to - req->from > MAX_RANGE) { -+ ip_set_printk("range too big (max %d ports)", -+ MAX_RANGE); -+ return -ENOEXEC; -+ } -+ -+ map = kmalloc(sizeof(struct ip_set_portmap), GFP_KERNEL); -+ if (!map) { -+ DP("out of memory for %d bytes", -+ sizeof(struct ip_set_portmap)); -+ return -ENOMEM; -+ } -+ map->first_port = req->from; -+ map->last_port = req->to; -+ newbytes = bitmap_bytes(req->from, req->to); -+ map->members = kmalloc(newbytes, GFP_KERNEL); -+ if (!map->members) { -+ DP("out of memory for %d bytes", newbytes); -+ kfree(map); -+ return -ENOMEM; -+ } -+ memset(map->members, 0, newbytes); -+ -+ set->data = map; -+ return 0; -+} -+ -+static void destroy(struct ip_set *set) -+{ -+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; -+ -+ kfree(map->members); -+ kfree(map); -+ -+ set->data = NULL; -+} -+ -+static void flush(struct ip_set *set) -+{ -+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; -+ memset(map->members, 0, bitmap_bytes(map->first_port, map->last_port)); -+} -+ -+static void list_header(const struct ip_set *set, void *data) -+{ -+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; -+ struct ip_set_req_portmap_create *header = -+ (struct ip_set_req_portmap_create *) data; -+ -+ DP("list_header %u %u", map->first_port, map->last_port); -+ -+ header->from = map->first_port; -+ header->to = map->last_port; -+} -+ -+static int list_members_size(const struct ip_set *set) -+{ -+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; -+ -+ return bitmap_bytes(map->first_port, map->last_port); -+} -+ -+static void list_members(const struct ip_set *set, void *data) -+{ -+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; -+ int bytes = bitmap_bytes(map->first_port, map->last_port); -+ -+ memcpy(data, map->members, bytes); -+} -+ -+static struct ip_set_type ip_set_portmap = { -+ .typename = SETTYPE_NAME, -+ .typecode = IPSET_TYPE_PORT, -+ .protocol_version = IP_SET_PROTOCOL_VERSION, -+ .create = &create, -+ .destroy = &destroy, -+ .flush = &flush, -+ .reqsize = sizeof(struct ip_set_req_portmap), -+ .addip = &addport, -+ .addip_kernel = &addport_kernel, -+ .delip = &delport, -+ .delip_kernel = &delport_kernel, -+ .testip = &testport, -+ .testip_kernel = &testport_kernel, -+ .header_size = sizeof(struct ip_set_req_portmap_create), -+ .list_header = &list_header, -+ .list_members_size = &list_members_size, -+ .list_members = &list_members, -+ .me = THIS_MODULE, -+}; -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jozsef Kadlecsik "); -+MODULE_DESCRIPTION("portmap type of IP sets"); -+ -+static int __init init(void) -+{ -+ return ip_set_register_set_type(&ip_set_portmap); -+} -+ -+static void __exit fini(void) -+{ -+ /* FIXME: possible race with ip_set_create() */ -+ ip_set_unregister_set_type(&ip_set_portmap); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_set.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_set.c ---- linux-2.6.19.old/net/ipv4/netfilter/ipt_set.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_set.c 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,105 @@ -+/* Copyright (C) 2000-2002 Joakim Axelsson -+ * Patrick Schaaf -+ * Martin Josefsson -+ * Copyright (C) 2003-2004 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* Kernel module to match an IP set. */ -+ -+#include -+#include -+#include -+ -+#include -+#include -+#include -+ -+static inline int -+match_set(const struct ipt_set_info *info, -+ const struct sk_buff *skb, -+ int inv) -+{ -+ if (ip_set_testip_kernel(info->index, skb, info->flags)) -+ inv = !inv; -+ return inv; -+} -+ -+static int -+match(const struct sk_buff *skb, -+ const struct net_device *in, -+ const struct net_device *out, -+ const struct xt_match *match, -+ const void *matchinfo, -+ int offset, -+ unsigned int protoff, -+ int *hotdrop) -+{ -+ const struct ipt_set_info_match *info = matchinfo; -+ -+ return match_set(&info->match_set, -+ skb, -+ info->match_set.flags[0] & IPSET_MATCH_INV); -+} -+ -+static int -+checkentry(const char *tablename, -+ const void *ip, -+ const struct xt_match *match, -+ void *matchinfo, -+ unsigned int hook_mask) -+{ -+ struct ipt_set_info_match *info = -+ (struct ipt_set_info_match *) matchinfo; -+ ip_set_id_t index; -+ -+ index = ip_set_get_byindex(info->match_set.index); -+ -+ if (index == IP_SET_INVALID_ID) { -+ ip_set_printk("Cannot find set indentified by id %u to match", -+ info->match_set.index); -+ return 0; /* error */ -+ } -+ if (info->match_set.flags[IP_SET_MAX_BINDINGS] != 0) { -+ ip_set_printk("That's nasty!"); -+ return 0; /* error */ -+ } -+ -+ return 1; -+} -+ -+static void destroy(const struct xt_match *match, void *matchinfo) -+{ -+ struct ipt_set_info_match *info = matchinfo; -+ -+ ip_set_put(info->match_set.index); -+} -+ -+static struct ipt_match set_match = { -+ .name = "set", -+ .match = &match, -+ .matchsize = sizeof(struct ipt_set_info_match), -+ .checkentry = &checkentry, -+ .destroy = &destroy, -+ .me = THIS_MODULE -+}; -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jozsef Kadlecsik "); -+MODULE_DESCRIPTION("iptables IP set match module"); -+ -+static int __init init(void) -+{ -+ return ipt_register_match(&set_match); -+} -+ -+static void __exit fini(void) -+{ -+ ipt_unregister_match(&set_match); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_SET.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_SET.c ---- linux-2.6.19.old/net/ipv4/netfilter/ipt_SET.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_SET.c 2006-12-14 03:13:43.000000000 +0100 -@@ -0,0 +1,120 @@ -+/* Copyright (C) 2000-2002 Joakim Axelsson -+ * Patrick Schaaf -+ * Martin Josefsson -+ * Copyright (C) 2003-2004 Jozsef Kadlecsik -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* ipt_SET.c - netfilter target to manipulate IP sets */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+static unsigned int -+target(struct sk_buff **pskb, -+ const struct net_device *in, -+ const struct net_device *out, -+ unsigned int hooknum, -+ const struct xt_target *target, -+ const void *targinfo) -+{ -+ const struct ipt_set_info_target *info = targinfo; -+ -+ if (info->add_set.index != IP_SET_INVALID_ID) -+ ip_set_addip_kernel(info->add_set.index, -+ *pskb, -+ info->add_set.flags); -+ if (info->del_set.index != IP_SET_INVALID_ID) -+ ip_set_delip_kernel(info->del_set.index, -+ *pskb, -+ info->del_set.flags); -+ -+ return IPT_CONTINUE; -+} -+ -+static int -+checkentry(const char *tablename, -+ const void *e, -+ const struct xt_target *target, -+ void *targinfo, -+ unsigned int hook_mask) -+{ -+ struct ipt_set_info_target *info = -+ (struct ipt_set_info_target *) targinfo; -+ ip_set_id_t index; -+ -+ if (info->add_set.index != IP_SET_INVALID_ID) { -+ index = ip_set_get_byindex(info->add_set.index); -+ if (index == IP_SET_INVALID_ID) { -+ ip_set_printk("cannot find add_set index %u as target", -+ info->add_set.index); -+ return 0; /* error */ -+ } -+ } -+ -+ if (info->del_set.index != IP_SET_INVALID_ID) { -+ index = ip_set_get_byindex(info->del_set.index); -+ if (index == IP_SET_INVALID_ID) { -+ ip_set_printk("cannot find del_set index %u as target", -+ info->del_set.index); -+ return 0; /* error */ -+ } -+ } -+ if (info->add_set.flags[IP_SET_MAX_BINDINGS] != 0 -+ || info->del_set.flags[IP_SET_MAX_BINDINGS] != 0) { -+ ip_set_printk("That's nasty!"); -+ return 0; /* error */ -+ } -+ -+ return 1; -+} -+ -+static void destroy(const struct xt_target *target, void *targetinfo) -+{ -+ struct ipt_set_info_target *info = targetinfo; -+ -+ if (info->add_set.index != IP_SET_INVALID_ID) -+ ip_set_put(info->add_set.index); -+ if (info->del_set.index != IP_SET_INVALID_ID) -+ ip_set_put(info->del_set.index); -+} -+ -+static struct ipt_target SET_target = { -+ .name = "SET", -+ .target = target, -+ .targetsize = sizeof(struct ipt_set_info_target), -+ .checkentry = checkentry, -+ .destroy = destroy, -+ .me = THIS_MODULE -+}; -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jozsef Kadlecsik "); -+MODULE_DESCRIPTION("iptables IP set target module"); -+ -+static int __init init(void) -+{ -+ return ipt_register_target(&SET_target); -+} -+ -+static void __exit fini(void) -+{ -+ ipt_unregister_target(&SET_target); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig ---- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:41.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:43.000000000 +0100 -@@ -647,5 +647,106 @@ - Allows altering the ARP packet payload: source and destination - hardware and network addresses. - -+config IP_NF_SET -+ tristate "IP set support" -+ depends on INET && NETFILTER -+ help -+ This option adds IP set support to the kernel. -+ In order to define and use sets, you need the userspace utility -+ ipset(8). -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config IP_NF_SET_MAX -+ int "Maximum number of IP sets" -+ default 256 -+ range 2 65534 -+ depends on IP_NF_SET -+ help -+ You can define here default value of the maximum number -+ of IP sets for the kernel. -+ -+ The value can be overriden by the 'max_sets' module -+ parameter of the 'ip_set' module. -+ -+config IP_NF_SET_HASHSIZE -+ int "Hash size for bindings of IP sets" -+ default 1024 -+ depends on IP_NF_SET -+ help -+ You can define here default value of the hash size for -+ bindings of IP sets. -+ -+ The value can be overriden by the 'hash_size' module -+ parameter of the 'ip_set' module. -+ -+config IP_NF_SET_IPMAP -+ tristate "ipmap set support" -+ depends on IP_NF_SET -+ help -+ This option adds the ipmap set type support. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config IP_NF_SET_MACIPMAP -+ tristate "macipmap set support" -+ depends on IP_NF_SET -+ help -+ This option adds the macipmap set type support. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config IP_NF_SET_PORTMAP -+ tristate "portmap set support" -+ depends on IP_NF_SET -+ help -+ This option adds the portmap set type support. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config IP_NF_SET_IPHASH -+ tristate "iphash set support" -+ depends on IP_NF_SET -+ help -+ This option adds the iphash set type support. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config IP_NF_SET_NETHASH -+ tristate "nethash set support" -+ depends on IP_NF_SET -+ help -+ This option adds the nethash set type support. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config IP_NF_SET_IPTREE -+ tristate "iptree set support" -+ depends on IP_NF_SET -+ help -+ This option adds the iptree set type support. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config IP_NF_MATCH_SET -+ tristate "set match support" -+ depends on IP_NF_SET -+ help -+ Set matching matches against given IP sets. -+ You need the ipset utility to create and set up the sets. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config IP_NF_TARGET_SET -+ tristate "SET target support" -+ depends on IP_NF_SET -+ help -+ The SET target makes possible to add/delete entries -+ in IP sets. -+ You need the ipset utility to create and set up the sets. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+ - endmenu - -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile ---- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:41.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:43.000000000 +0100 -@@ -54,6 +54,7 @@ - - # matches - obj-$(CONFIG_IP_NF_MATCH_HASHLIMIT) += ipt_hashlimit.o -+obj-$(CONFIG_IP_NF_MATCH_SET) += ipt_set.o - obj-$(CONFIG_IP_NF_MATCH_IPRANGE) += ipt_iprange.o - obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o - obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o -@@ -77,6 +78,17 @@ - obj-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG.o - obj-$(CONFIG_IP_NF_TARGET_ULOG) += ipt_ULOG.o - obj-$(CONFIG_IP_NF_TARGET_TCPMSS) += ipt_TCPMSS.o -+obj-$(CONFIG_IP_NF_TARGET_SET) += ipt_SET.o -+ -+# sets -+obj-$(CONFIG_IP_NF_SET) += ip_set.o -+obj-$(CONFIG_IP_NF_SET_IPMAP) += ip_set_ipmap.o -+obj-$(CONFIG_IP_NF_SET_PORTMAP) += ip_set_portmap.o -+obj-$(CONFIG_IP_NF_SET_MACIPMAP) += ip_set_macipmap.o -+obj-$(CONFIG_IP_NF_SET_IPHASH) += ip_set_iphash.o -+obj-$(CONFIG_IP_NF_SET_NETHASH) += ip_set_nethash.o -+obj-$(CONFIG_IP_NF_SET_IPTREE) += ip_set_iptree.o -+ - obj-$(CONFIG_IP_NF_TARGET_CLUSTERIP) += ipt_CLUSTERIP.o - obj-$(CONFIG_IP_NF_TARGET_TTL) += ipt_TTL.o - diff --git a/target/linux/generic-2.6/patches/105-netfilter_time.patch b/target/linux/generic-2.6/patches/105-netfilter_time.patch deleted file mode 100644 index d217157d78..0000000000 --- a/target/linux/generic-2.6/patches/105-netfilter_time.patch +++ /dev/null @@ -1,241 +0,0 @@ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_time.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_time.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_time.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_time.h 2006-12-14 03:13:45.000000000 +0100 -@@ -0,0 +1,18 @@ -+#ifndef __ipt_time_h_included__ -+#define __ipt_time_h_included__ -+ -+ -+struct ipt_time_info { -+ u_int8_t days_match; /* 1 bit per day. -SMTWTFS */ -+ u_int16_t time_start; /* 0 < time_start < 23*60+59 = 1439 */ -+ u_int16_t time_stop; /* 0:0 < time_stat < 23:59 */ -+ -+ /* FIXME: Keep this one for userspace iptables binary compability: */ -+ u_int8_t kerneltime; /* ignore skb time (and use kerneltime) or not. */ -+ -+ time_t date_start; -+ time_t date_stop; -+}; -+ -+ -+#endif /* __ipt_time_h_included__ */ -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_time.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_time.c ---- linux-2.6.19.old/net/ipv4/netfilter/ipt_time.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_time.c 2006-12-14 03:13:45.000000000 +0100 -@@ -0,0 +1,178 @@ -+/* -+ This is a module which is used for time matching -+ It is using some modified code from dietlibc (localtime() function) -+ that you can find at http://www.fefe.de/dietlibc/ -+ This file is distributed under the terms of the GNU General Public -+ License (GPL). Copies of the GPL can be obtained from: ftp://prep.ai.mit.edu/pub/gnu/GPL -+ 2001-05-04 Fabrice MARIE : initial development. -+ 2001-21-05 Fabrice MARIE : bug fix in the match code, -+ thanks to "Zeng Yu" for bug report. -+ 2001-26-09 Fabrice MARIE : force the match to be in LOCAL_IN or PRE_ROUTING only. -+ 2001-30-11 Fabrice : added the possibility to use the match in FORWARD/OUTPUT with a little hack, -+ added Nguyen Dang Phuoc Dong patch to support timezones. -+ 2004-05-02 Fabrice : added support for date matching, from an idea of Fabien COELHO. -+*/ -+ -+#include -+#include -+#include -+#include -+#include -+ -+MODULE_AUTHOR("Fabrice MARIE "); -+MODULE_DESCRIPTION("Match arrival timestamp/date"); -+MODULE_LICENSE("GPL"); -+ -+struct tm -+{ -+ int tm_sec; /* Seconds. [0-60] (1 leap second) */ -+ int tm_min; /* Minutes. [0-59] */ -+ int tm_hour; /* Hours. [0-23] */ -+ int tm_mday; /* Day. [1-31] */ -+ int tm_mon; /* Month. [0-11] */ -+ int tm_year; /* Year - 1900. */ -+ int tm_wday; /* Day of week. [0-6] */ -+ int tm_yday; /* Days in year.[0-365] */ -+ int tm_isdst; /* DST. [-1/0/1]*/ -+ -+ long int tm_gmtoff; /* we don't care, we count from GMT */ -+ const char *tm_zone; /* we don't care, we count from GMT */ -+}; -+ -+void -+localtime(const u32 time, struct tm *r); -+ -+static int -+match(const struct sk_buff *skb, -+ const struct net_device *in, -+ const struct net_device *out, -+ const struct xt_match *match, -+ const void *matchinfo, -+ int offset, -+ unsigned int protoff, -+ int *hotdrop) -+{ -+ const struct ipt_time_info *info = matchinfo; /* match info for rule */ -+ struct tm currenttime; /* time human readable */ -+ u_int8_t days_of_week[7] = {64, 32, 16, 8, 4, 2, 1}; -+ u_int16_t packet_time; -+ -+ /* We might not have a timestamp, get one */ -+ if (skb->tstamp.off_sec == 0) -+ __net_timestamp((struct sk_buff *)skb); -+ -+ /* First we make sure we are in the date start-stop boundaries */ -+ if ((skb->tstamp.off_sec < info->date_start) || (skb->tstamp.off_sec > info->date_stop)) -+ return 0; /* We are outside the date boundaries */ -+ -+ /* Transform the timestamp of the packet, in a human readable form */ -+ localtime(skb->tstamp.off_sec, ¤ttime); -+ -+ /* check if we match this timestamp, we start by the days... */ -+ if ((days_of_week[currenttime.tm_wday] & info->days_match) != days_of_week[currenttime.tm_wday]) -+ return 0; /* the day doesn't match */ -+ -+ /* ... check the time now */ -+ packet_time = (currenttime.tm_hour * 60) + currenttime.tm_min; -+ if ((packet_time < info->time_start) || (packet_time > info->time_stop)) -+ return 0; -+ -+ /* here we match ! */ -+ return 1; -+} -+ -+static int -+checkentry(const char *tablename, -+ const void *ip, -+ const struct xt_match *match, -+ void *matchinfo, -+ unsigned int hook_mask) -+{ -+ struct ipt_time_info *info = matchinfo; /* match info for rule */ -+ -+ /* First, check that we are in the correct hooks */ -+ if (hook_mask -+ & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_IN) | (1 << NF_IP_FORWARD) | (1 << NF_IP_LOCAL_OUT))) -+ { -+ printk("ipt_time: error, only valid for PRE_ROUTING, LOCAL_IN, FORWARD and OUTPUT)\n"); -+ return 0; -+ } -+ -+ /* Now check the coherence of the data ... */ -+ if ((info->time_start > 1439) || /* 23*60+59 = 1439*/ -+ (info->time_stop > 1439)) -+ { -+ printk(KERN_WARNING "ipt_time: invalid argument\n"); -+ return 0; -+ } -+ -+ return 1; -+} -+ -+static struct ipt_match time_match = { -+ .name = "time", -+ .match = &match, -+ .matchsize = sizeof(struct ipt_time_info), -+ .checkentry = &checkentry, -+ .me = THIS_MODULE -+}; -+ -+static int __init init(void) -+{ -+ printk("ipt_time loading\n"); -+ return ipt_register_match(&time_match); -+} -+ -+static void __exit fini(void) -+{ -+ ipt_unregister_match(&time_match); -+ printk("ipt_time unloaded\n"); -+} -+ -+module_init(init); -+module_exit(fini); -+ -+ -+/* The part below is borowed and modified from dietlibc */ -+ -+/* seconds per day */ -+#define SPD 24*60*60 -+ -+void -+localtime(const u32 time, struct tm *r) { -+ u32 i, timep; -+ extern struct timezone sys_tz; -+ const unsigned int __spm[12] = -+ { 0, -+ (31), -+ (31+28), -+ (31+28+31), -+ (31+28+31+30), -+ (31+28+31+30+31), -+ (31+28+31+30+31+30), -+ (31+28+31+30+31+30+31), -+ (31+28+31+30+31+30+31+31), -+ (31+28+31+30+31+30+31+31+30), -+ (31+28+31+30+31+30+31+31+30+31), -+ (31+28+31+30+31+30+31+31+30+31+30), -+ }; -+ register u32 work; -+ -+ timep = time - (sys_tz.tz_minuteswest * 60); -+ work=timep%(SPD); -+ r->tm_sec=work%60; work/=60; -+ r->tm_min=work%60; r->tm_hour=work/60; -+ work=timep/(SPD); -+ r->tm_wday=(4+work)%7; -+ for (i=1970; ; ++i) { -+ register time_t k= (!(i%4) && ((i%100) || !(i%400)))?366:365; -+ if (work>k) -+ work-=k; -+ else -+ break; -+ } -+ r->tm_year=i-1900; -+ for (i=11; i && __spm[i]>work; --i) ; -+ r->tm_mon=i; -+ r->tm_mday=work-__spm[i]+1; -+} -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig ---- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:45.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:45.000000000 +0100 -@@ -263,6 +263,22 @@ - - To compile it as a module, choose M here. If unsure, say N. - -+ -+config IP_NF_MATCH_TIME -+ tristate 'TIME match support' -+ depends on IP_NF_IPTABLES -+ help -+ This option adds a `time' match, which allows you -+ to match based on the packet arrival time/date -+ (arrival time/date at the machine which netfilter is running on) or -+ departure time/date (for locally generated packets). -+ -+ If you say Y here, try iptables -m time --help for more information. -+ If you want to compile it as a module, say M here and read -+ -+ Documentation/modules.txt. If unsure, say `N'. -+ -+ - config IP_NF_MATCH_RECENT - tristate "recent match support" - depends on IP_NF_IPTABLES -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile ---- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:45.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:45.000000000 +0100 -@@ -58,6 +58,7 @@ - obj-$(CONFIG_IP_NF_MATCH_IPRANGE) += ipt_iprange.o - obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o - obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o -+obj-$(CONFIG_IP_NF_MATCH_TIME) += ipt_time.o - obj-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent.o - obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn.o - obj-$(CONFIG_IP_NF_MATCH_AH) += ipt_ah.o diff --git a/target/linux/generic-2.6/patches/106-netfilter_imq.patch b/target/linux/generic-2.6/patches/106-netfilter_imq.patch deleted file mode 100644 index 559d80fbc8..0000000000 --- a/target/linux/generic-2.6/patches/106-netfilter_imq.patch +++ /dev/null @@ -1,868 +0,0 @@ -diff -urN linux-2.6.19.old/drivers/net/imq.c linux-2.6.19.dev/drivers/net/imq.c ---- linux-2.6.19.old/drivers/net/imq.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/drivers/net/imq.c 2006-12-14 03:13:47.000000000 +0100 -@@ -0,0 +1,400 @@ -+/* -+ * Pseudo-driver for the intermediate queue device. -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version -+ * 2 of the License, or (at your option) any later version. -+ * -+ * Authors: Patrick McHardy, -+ * -+ * The first version was written by Martin Devera, -+ * -+ * Credits: Jan Rafaj -+ * - Update patch to 2.4.21 -+ * Sebastian Strollo -+ * - Fix "Dead-loop on netdevice imq"-issue -+ * Marcel Sebek -+ * - Update to 2.6.2-rc1 -+ * -+ * After some time of inactivity there is a group taking care -+ * of IMQ again: http://www.linuximq.net -+ * -+ * -+ * 2004/06/30 - New version of IMQ patch to kernels <=2.6.7 including -+ * the following changes: -+ * -+ * - Correction of ipv6 support "+"s issue (Hasso Tepper) -+ * - Correction of imq_init_devs() issue that resulted in -+ * kernel OOPS unloading IMQ as module (Norbert Buchmuller) -+ * - Addition of functionality to choose number of IMQ devices -+ * during kernel config (Andre Correa) -+ * - Addition of functionality to choose how IMQ hooks on -+ * PRE and POSTROUTING (after or before NAT) (Andre Correa) -+ * - Cosmetic corrections (Norbert Buchmuller) (Andre Correa) -+ * -+ * -+ * 2005/12/16 - IMQ versions between 2.6.7 and 2.6.13 were -+ * released with almost no problems. 2.6.14-x was released -+ * with some important changes: nfcache was removed; After -+ * some weeks of trouble we figured out that some IMQ fields -+ * in skb were missing in skbuff.c - skb_clone and copy_skb_header. -+ * These functions are correctly patched by this new patch version. -+ * -+ * Thanks for all who helped to figure out all the problems with -+ * 2.6.14.x: Patrick McHardy, Rune Kock, VeNoMouS, Max CtRiX, -+ * Kevin Shanahan, Richard Lucassen, Valery Dachev (hopefully -+ * I didn't forget anybody). I apologize again for my lack of time. -+ * -+ * More info at: http://www.linuximq.net/ (Andre Correa) -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) -+ #include -+#endif -+#include -+#include -+ -+static nf_hookfn imq_nf_hook; -+ -+static struct nf_hook_ops imq_ingress_ipv4 = { -+ .hook = imq_nf_hook, -+ .owner = THIS_MODULE, -+ .pf = PF_INET, -+ .hooknum = NF_IP_PRE_ROUTING, -+#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB) -+ .priority = NF_IP_PRI_MANGLE + 1 -+#else -+ .priority = NF_IP_PRI_NAT_DST + 1 -+#endif -+}; -+ -+static struct nf_hook_ops imq_egress_ipv4 = { -+ .hook = imq_nf_hook, -+ .owner = THIS_MODULE, -+ .pf = PF_INET, -+ .hooknum = NF_IP_POST_ROUTING, -+#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA) -+ .priority = NF_IP_PRI_LAST -+#else -+ .priority = NF_IP_PRI_NAT_SRC - 1 -+#endif -+}; -+ -+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) -+static struct nf_hook_ops imq_ingress_ipv6 = { -+ .hook = imq_nf_hook, -+ .owner = THIS_MODULE, -+ .pf = PF_INET6, -+ .hooknum = NF_IP6_PRE_ROUTING, -+#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB) -+ .priority = NF_IP6_PRI_MANGLE + 1 -+#else -+ .priority = NF_IP6_PRI_NAT_DST + 1 -+#endif -+}; -+ -+static struct nf_hook_ops imq_egress_ipv6 = { -+ .hook = imq_nf_hook, -+ .owner = THIS_MODULE, -+ .pf = PF_INET6, -+ .hooknum = NF_IP6_POST_ROUTING, -+#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA) -+ .priority = NF_IP6_PRI_LAST -+#else -+ .priority = NF_IP6_PRI_NAT_SRC - 1 -+#endif -+}; -+#endif -+ -+#if defined(CONFIG_IMQ_NUM_DEVS) -+static unsigned int numdevs = CONFIG_IMQ_NUM_DEVS; -+#else -+static unsigned int numdevs = 2; -+#endif -+ -+static struct net_device *imq_devs; -+ -+static struct net_device_stats *imq_get_stats(struct net_device *dev) -+{ -+ return (struct net_device_stats *)dev->priv; -+} -+ -+/* called for packets kfree'd in qdiscs at places other than enqueue */ -+static void imq_skb_destructor(struct sk_buff *skb) -+{ -+ struct nf_info *info = skb->nf_info; -+ -+ if (info) { -+ if (info->indev) -+ dev_put(info->indev); -+ if (info->outdev) -+ dev_put(info->outdev); -+ kfree(info); -+ } -+} -+ -+static int imq_dev_xmit(struct sk_buff *skb, struct net_device *dev) -+{ -+ struct net_device_stats *stats = (struct net_device_stats*) dev->priv; -+ -+ stats->tx_bytes += skb->len; -+ stats->tx_packets++; -+ -+ skb->imq_flags = 0; -+ skb->destructor = NULL; -+ -+ dev->trans_start = jiffies; -+ nf_reinject(skb, skb->nf_info, NF_ACCEPT); -+ return 0; -+} -+ -+static int imq_nf_queue(struct sk_buff *skb, struct nf_info *info, unsigned queue_num, void *data) -+{ -+ struct net_device *dev; -+ struct net_device_stats *stats; -+ struct sk_buff *skb2 = NULL; -+ struct Qdisc *q; -+ unsigned int index = skb->imq_flags&IMQ_F_IFMASK; -+ int ret = -1; -+ -+ if (index > numdevs) -+ return -1; -+ -+ dev = imq_devs + index; -+ if (!(dev->flags & IFF_UP)) { -+ skb->imq_flags = 0; -+ nf_reinject(skb, info, NF_ACCEPT); -+ return 0; -+ } -+ dev->last_rx = jiffies; -+ -+ if (skb->destructor) { -+ skb2 = skb; -+ skb = skb_clone(skb, GFP_ATOMIC); -+ if (!skb) -+ return -1; -+ } -+ skb->nf_info = info; -+ -+ stats = (struct net_device_stats *)dev->priv; -+ stats->rx_bytes+= skb->len; -+ stats->rx_packets++; -+ -+ spin_lock_bh(&dev->queue_lock); -+ q = dev->qdisc; -+ if (q->enqueue) { -+ q->enqueue(skb_get(skb), q); -+ if (skb_shared(skb)) { -+ skb->destructor = imq_skb_destructor; -+ kfree_skb(skb); -+ ret = 0; -+ } -+ } -+ if (spin_is_locked(&dev->_xmit_lock)) -+ netif_schedule(dev); -+ else -+ qdisc_run(dev); -+ -+ spin_unlock_bh(&dev->queue_lock); -+ -+ if (skb2) -+ kfree_skb(ret ? skb : skb2); -+ -+ return ret; -+} -+ -+static struct nf_queue_handler nfqh = { -+ .name = "imq", -+ .outfn = imq_nf_queue, -+}; -+ -+static unsigned int imq_nf_hook(unsigned int hook, struct sk_buff **pskb, -+ const struct net_device *indev, -+ const struct net_device *outdev, -+ int (*okfn)(struct sk_buff *)) -+{ -+ if ((*pskb)->imq_flags & IMQ_F_ENQUEUE) -+ return NF_QUEUE; -+ -+ return NF_ACCEPT; -+} -+ -+ -+static int __init imq_init_hooks(void) -+{ -+ int err; -+ -+ err = nf_register_queue_handler(PF_INET, &nfqh); -+ if (err > 0) -+ goto err1; -+ if ((err = nf_register_hook(&imq_ingress_ipv4))) -+ goto err2; -+ if ((err = nf_register_hook(&imq_egress_ipv4))) -+ goto err3; -+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) -+ if ((err = nf_register_queue_handler(PF_INET6, &nfqh))) -+ goto err4; -+ if ((err = nf_register_hook(&imq_ingress_ipv6))) -+ goto err5; -+ if ((err = nf_register_hook(&imq_egress_ipv6))) -+ goto err6; -+#endif -+ -+ return 0; -+ -+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) -+err6: -+ nf_unregister_hook(&imq_ingress_ipv6); -+err5: -+ nf_unregister_queue_handler(PF_INET6); -+err4: -+ nf_unregister_hook(&imq_egress_ipv6); -+#endif -+err3: -+ nf_unregister_hook(&imq_ingress_ipv4); -+err2: -+ nf_unregister_queue_handler(PF_INET); -+err1: -+ return err; -+} -+ -+static void __exit imq_unhook(void) -+{ -+ nf_unregister_hook(&imq_ingress_ipv4); -+ nf_unregister_hook(&imq_egress_ipv4); -+ nf_unregister_queue_handler(PF_INET); -+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) -+ nf_unregister_hook(&imq_ingress_ipv6); -+ nf_unregister_hook(&imq_egress_ipv6); -+ nf_unregister_queue_handler(PF_INET6); -+#endif -+} -+ -+static int __init imq_dev_init(struct net_device *dev) -+{ -+ dev->hard_start_xmit = imq_dev_xmit; -+ dev->type = ARPHRD_VOID; -+ dev->mtu = 1500; -+ dev->tx_queue_len = 30; -+ dev->flags = IFF_NOARP; -+ dev->priv = kmalloc(sizeof(struct net_device_stats), GFP_KERNEL); -+ if (dev->priv == NULL) -+ return -ENOMEM; -+ memset(dev->priv, 0, sizeof(struct net_device_stats)); -+ dev->get_stats = imq_get_stats; -+ -+ return 0; -+} -+ -+static void imq_dev_uninit(struct net_device *dev) -+{ -+ kfree(dev->priv); -+} -+ -+static int __init imq_init_devs(void) -+{ -+ struct net_device *dev; -+ int i,j; -+ j = numdevs; -+ -+ if (!numdevs || numdevs > IMQ_MAX_DEVS) { -+ printk(KERN_ERR "IMQ: numdevs has to be betweed 1 and %u\n", -+ IMQ_MAX_DEVS); -+ return -EINVAL; -+ } -+ -+ imq_devs = kmalloc(sizeof(struct net_device) * numdevs, GFP_KERNEL); -+ if (!imq_devs) -+ return -ENOMEM; -+ memset(imq_devs, 0, sizeof(struct net_device) * numdevs); -+ -+ /* we start counting at zero */ -+ numdevs--; -+ -+ for (i = 0, dev = imq_devs; i <= numdevs; i++, dev++) { -+ SET_MODULE_OWNER(dev); -+ strcpy(dev->name, "imq%d"); -+ dev->init = imq_dev_init; -+ dev->uninit = imq_dev_uninit; -+ -+ if (register_netdev(dev) < 0) -+ goto err_register; -+ } -+ printk(KERN_INFO "IMQ starting with %u devices...\n", j); -+ return 0; -+ -+err_register: -+ for (; i; i--) -+ unregister_netdev(--dev); -+ kfree(imq_devs); -+ return -EIO; -+} -+ -+static void imq_cleanup_devs(void) -+{ -+ int i; -+ struct net_device *dev = imq_devs; -+ -+ for (i = 0; i <= numdevs; i++) -+ unregister_netdev(dev++); -+ -+ kfree(imq_devs); -+} -+ -+static int __init imq_init_module(void) -+{ -+ int err; -+ -+ if ((err = imq_init_devs())) { -+ printk(KERN_ERR "IMQ: Error trying imq_init_devs()\n"); -+ return err; -+ } -+ if ((err = imq_init_hooks())) { -+ printk(KERN_ERR "IMQ: Error trying imq_init_hooks()\n"); -+ imq_cleanup_devs(); -+ return err; -+ } -+ -+ printk(KERN_INFO "IMQ driver loaded successfully.\n"); -+ -+#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB) -+ printk(KERN_INFO "\tHooking IMQ before NAT on PREROUTING.\n"); -+#else -+ printk(KERN_INFO "\tHooking IMQ after NAT on PREROUTING.\n"); -+#endif -+#if defined(CONFIG_IMQ_BEHAVIOR_AB) || defined(CONFIG_IMQ_BEHAVIOR_BB) -+ printk(KERN_INFO "\tHooking IMQ before NAT on POSTROUTING.\n"); -+#else -+ printk(KERN_INFO "\tHooking IMQ after NAT on POSTROUTING.\n"); -+#endif -+ -+ return 0; -+} -+ -+static void __exit imq_cleanup_module(void) -+{ -+ imq_unhook(); -+ imq_cleanup_devs(); -+ printk(KERN_INFO "IMQ driver unloaded successfully.\n"); -+} -+ -+ -+module_init(imq_init_module); -+module_exit(imq_cleanup_module); -+ -+module_param(numdevs, int, 0); -+MODULE_PARM_DESC(numdevs, "number of IMQ devices (how many imq* devices will be created)"); -+MODULE_AUTHOR("http://www.linuximq.net"); -+MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information."); -+MODULE_LICENSE("GPL"); -diff -urN linux-2.6.19.old/drivers/net/Kconfig linux-2.6.19.dev/drivers/net/Kconfig ---- linux-2.6.19.old/drivers/net/Kconfig 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/drivers/net/Kconfig 2006-12-14 03:13:47.000000000 +0100 -@@ -96,6 +96,129 @@ - To compile this driver as a module, choose M here: the module - will be called eql. If unsure, say N. - -+config IMQ -+ tristate "IMQ (intermediate queueing device) support" -+ depends on NETDEVICES && NETFILTER -+ ---help--- -+ The IMQ device(s) is used as placeholder for QoS queueing disciplines. -+ Every packet entering/leaving the IP stack can be directed through -+ the IMQ device where it's enqueued/dequeued to the attached qdisc. -+ This allows you to treat network devices as classes and distribute -+ bandwidth among them. Iptables is used to specify through which IMQ -+ device, if any, packets travel. -+ -+ More information at: http://www.linuximq.net/ -+ -+ To compile this driver as a module, choose M here: the module -+ will be called imq. If unsure, say N. -+ -+choice -+ prompt "IMQ behavior (PRE/POSTROUTING)" -+ depends on IMQ -+ default IMQ_BEHAVIOR_BA -+ help -+ -+ This settings defines how IMQ behaves in respect to its -+ hooking in PREROUTING and POSTROUTING. -+ -+ IMQ can work in any of the following ways: -+ -+ PREROUTING | POSTROUTING -+ -----------------|------------------- -+ #1 After NAT | After NAT -+ #2 After NAT | Before NAT -+ #3 Before NAT | After NAT -+ #4 Before NAT | Before NAT -+ -+ The default behavior is to hook before NAT on PREROUTING -+ and after NAT on POSTROUTING (#3). -+ -+ This settings are specially usefull when trying to use IMQ -+ to shape NATed clients. -+ -+ More information can be found at: www.linuximq.net -+ -+ If not sure leave the default settings alone. -+ -+config IMQ_BEHAVIOR_AA -+ bool "IMQ AA" -+ help -+ This settings defines how IMQ behaves in respect to its -+ hooking in PREROUTING and POSTROUTING. -+ -+ Choosing this option will make IMQ hook like this: -+ -+ PREROUTING: After NAT -+ POSTROUTING: After NAT -+ -+ More information can be found at: www.linuximq.net -+ -+ If not sure leave the default settings alone. -+ -+config IMQ_BEHAVIOR_AB -+ bool "IMQ AB" -+ help -+ This settings defines how IMQ behaves in respect to its -+ hooking in PREROUTING and POSTROUTING. -+ -+ Choosing this option will make IMQ hook like this: -+ -+ PREROUTING: After NAT -+ POSTROUTING: Before NAT -+ -+ More information can be found at: www.linuximq.net -+ -+ If not sure leave the default settings alone. -+ -+config IMQ_BEHAVIOR_BA -+ bool "IMQ BA" -+ help -+ This settings defines how IMQ behaves in respect to its -+ hooking in PREROUTING and POSTROUTING. -+ -+ Choosing this option will make IMQ hook like this: -+ -+ PREROUTING: Before NAT -+ POSTROUTING: After NAT -+ -+ More information can be found at: www.linuximq.net -+ -+ If not sure leave the default settings alone. -+ -+config IMQ_BEHAVIOR_BB -+ bool "IMQ BB" -+ help -+ This settings defines how IMQ behaves in respect to its -+ hooking in PREROUTING and POSTROUTING. -+ -+ Choosing this option will make IMQ hook like this: -+ -+ PREROUTING: Before NAT -+ POSTROUTING: Before NAT -+ -+ More information can be found at: www.linuximq.net -+ -+ If not sure leave the default settings alone. -+ -+endchoice -+ -+config IMQ_NUM_DEVS -+ -+ int "Number of IMQ devices" -+ range 2 8 -+ depends on IMQ -+ default "2" -+ help -+ -+ This settings defines how many IMQ devices will be -+ created. -+ -+ The default value is 2. -+ -+ More information can be found at: www.linuximq.net -+ -+ If not sure leave the default settings alone. -+ - config TUN - tristate "Universal TUN/TAP device driver support" - select CRC32 -diff -urN linux-2.6.19.old/drivers/net/Makefile linux-2.6.19.dev/drivers/net/Makefile ---- linux-2.6.19.old/drivers/net/Makefile 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/drivers/net/Makefile 2006-12-14 03:13:47.000000000 +0100 -@@ -124,6 +124,7 @@ - obj-$(CONFIG_SLHC) += slhc.o - - obj-$(CONFIG_DUMMY) += dummy.o -+obj-$(CONFIG_IMQ) += imq.o - obj-$(CONFIG_IFB) += ifb.o - obj-$(CONFIG_DE600) += de600.o - obj-$(CONFIG_DE620) += de620.o -diff -urN linux-2.6.19.old/include/linux/imq.h linux-2.6.19.dev/include/linux/imq.h ---- linux-2.6.19.old/include/linux/imq.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/imq.h 2006-12-14 03:13:47.000000000 +0100 -@@ -0,0 +1,9 @@ -+#ifndef _IMQ_H -+#define _IMQ_H -+ -+#define IMQ_MAX_DEVS 16 -+ -+#define IMQ_F_IFMASK 0x7f -+#define IMQ_F_ENQUEUE 0x80 -+ -+#endif /* _IMQ_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_IMQ.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_IMQ.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_IMQ.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_IMQ.h 2006-12-14 03:13:47.000000000 +0100 -@@ -0,0 +1,8 @@ -+#ifndef _IPT_IMQ_H -+#define _IPT_IMQ_H -+ -+struct ipt_imq_info { -+ unsigned int todev; /* target imq device */ -+}; -+ -+#endif /* _IPT_IMQ_H */ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv6/ip6t_IMQ.h linux-2.6.19.dev/include/linux/netfilter_ipv6/ip6t_IMQ.h ---- linux-2.6.19.old/include/linux/netfilter_ipv6/ip6t_IMQ.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv6/ip6t_IMQ.h 2006-12-14 03:13:47.000000000 +0100 -@@ -0,0 +1,8 @@ -+#ifndef _IP6T_IMQ_H -+#define _IP6T_IMQ_H -+ -+struct ip6t_imq_info { -+ unsigned int todev; /* target imq device */ -+}; -+ -+#endif /* _IP6T_IMQ_H */ -diff -urN linux-2.6.19.old/include/linux/skbuff.h linux-2.6.19.dev/include/linux/skbuff.h ---- linux-2.6.19.old/include/linux/skbuff.h 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/skbuff.h 2006-12-14 03:13:47.000000000 +0100 -@@ -292,6 +292,10 @@ - #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) - struct sk_buff *nfct_reasm; - #endif -+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) -+ unsigned char imq_flags; -+ struct nf_info *nf_info; -+#endif - #ifdef CONFIG_BRIDGE_NETFILTER - struct nf_bridge_info *nf_bridge; - #endif -diff -urN linux-2.6.19.old/net/core/skbuff.c linux-2.6.19.dev/net/core/skbuff.c ---- linux-2.6.19.old/net/core/skbuff.c 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/core/skbuff.c 2006-12-14 03:13:47.000000000 +0100 -@@ -482,6 +482,10 @@ - C(nfct_reasm); - nf_conntrack_get_reasm(skb->nfct_reasm); - #endif -+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) -+ C(imq_flags); -+ C(nf_info); -+#endif /*CONFIG_IMQ*/ - #ifdef CONFIG_BRIDGE_NETFILTER - C(nf_bridge); - nf_bridge_get(skb->nf_bridge); -@@ -546,6 +550,10 @@ - #if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE) - new->ipvs_property = old->ipvs_property; - #endif -+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) -+ new->imq_flags = old->imq_flags; -+ new->nf_info = old->nf_info; -+#endif /*CONFIG_IMQ*/ - #ifdef CONFIG_BRIDGE_NETFILTER - new->nf_bridge = old->nf_bridge; - nf_bridge_get(old->nf_bridge); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_IMQ.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_IMQ.c ---- linux-2.6.19.old/net/ipv4/netfilter/ipt_IMQ.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_IMQ.c 2006-12-14 03:13:47.000000000 +0100 -@@ -0,0 +1,77 @@ -+/* -+ * This target marks packets to be enqueued to an imq device -+ */ -+#include -+#include -+#include -+#include -+#include -+ -+static unsigned int imq_target(struct sk_buff **pskb, -+ const struct net_device *in, -+ const struct net_device *out, -+ unsigned int hooknum, -+ const struct xt_target *target, -+ const void *targinfo) -+{ -+ struct ipt_imq_info *mr = (struct ipt_imq_info*)targinfo; -+ -+ (*pskb)->imq_flags = mr->todev | IMQ_F_ENQUEUE; -+ -+ return IPT_CONTINUE; -+} -+ -+static int imq_checkentry(const char *tablename, -+ const void *e, -+ const struct xt_target *target, -+ void *targinfo, -+ unsigned int hook_mask) -+{ -+ struct ipt_imq_info *mr; -+ -+ mr = (struct ipt_imq_info*)targinfo; -+ -+ if (strcmp(tablename, "mangle") != 0) { -+ printk(KERN_WARNING -+ "IMQ: IMQ can only be called from \"mangle\" table, not \"%s\"\n", -+ tablename); -+ return 0; -+ } -+ -+ if (mr->todev > IMQ_MAX_DEVS) { -+ printk(KERN_WARNING -+ "IMQ: invalid device specified, highest is %u\n", -+ IMQ_MAX_DEVS); -+ return 0; -+ } -+ -+ return 1; -+} -+ -+static struct ipt_target ipt_imq_reg = { -+ .name = "IMQ", -+ .target = imq_target, -+ .targetsize = sizeof(struct ipt_imq_info), -+ .checkentry = imq_checkentry, -+ .me = THIS_MODULE -+}; -+ -+static int __init init(void) -+{ -+ if (ipt_register_target(&ipt_imq_reg)) -+ return -EINVAL; -+ -+ return 0; -+} -+ -+static void __exit fini(void) -+{ -+ ipt_unregister_target(&ipt_imq_reg); -+} -+ -+module_init(init); -+module_exit(fini); -+ -+MODULE_AUTHOR("http://www.linuximq.net"); -+MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information."); -+MODULE_LICENSE("GPL"); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig ---- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:47.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:47.000000000 +0100 -@@ -390,6 +390,17 @@ - - To compile it as a module, choose M here. If unsure, say N. - -+config IP_NF_TARGET_IMQ -+ tristate "IMQ target support" -+ depends on IP_NF_MANGLE -+ help -+ This option adds a `IMQ' target which is used to specify if and -+ to which IMQ device packets should get enqueued/dequeued. -+ -+ For more information visit: http://www.linuximq.net/ -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ - config IP_NF_TARGET_LOG - tristate "LOG target support" - depends on IP_NF_IPTABLES -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile ---- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:47.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:47.000000000 +0100 -@@ -71,6 +71,7 @@ - obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o - obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o - obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o -+obj-$(CONFIG_IP_NF_TARGET_IMQ) += ipt_IMQ.o - obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o - obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o - obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o -diff -urN linux-2.6.19.old/net/ipv6/netfilter/ip6t_IMQ.c linux-2.6.19.dev/net/ipv6/netfilter/ip6t_IMQ.c ---- linux-2.6.19.old/net/ipv6/netfilter/ip6t_IMQ.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv6/netfilter/ip6t_IMQ.c 2006-12-14 03:13:47.000000000 +0100 -@@ -0,0 +1,77 @@ -+/* -+ * This target marks packets to be enqueued to an imq device -+ */ -+#include -+#include -+#include -+#include -+#include -+ -+static unsigned int imq_target(struct sk_buff **pskb, -+ const struct net_device *in, -+ const struct net_device *out, -+ unsigned int hooknum, -+ const struct xt_target *target, -+ const void *targinfo) -+{ -+ struct ip6t_imq_info *mr = (struct ip6t_imq_info*)targinfo; -+ -+ (*pskb)->imq_flags = mr->todev | IMQ_F_ENQUEUE; -+ -+ return IP6T_CONTINUE; -+} -+ -+static int imq_checkentry(const char *tablename, -+ const void *e, -+ const struct xt_target *target, -+ void *targinfo, -+ unsigned int hook_mask) -+{ -+ struct ip6t_imq_info *mr; -+ -+ mr = (struct ip6t_imq_info*)targinfo; -+ -+ if (strcmp(tablename, "mangle") != 0) { -+ printk(KERN_WARNING -+ "IMQ: IMQ can only be called from \"mangle\" table, not \"%s\"\n", -+ tablename); -+ return 0; -+ } -+ -+ if (mr->todev > IMQ_MAX_DEVS) { -+ printk(KERN_WARNING -+ "IMQ: invalid device specified, highest is %u\n", -+ IMQ_MAX_DEVS); -+ return 0; -+ } -+ -+ return 1; -+} -+ -+static struct ip6t_target ip6t_imq_reg = { -+ .name = "IMQ", -+ .target = imq_target, -+ .targetsize = sizeof(struct ip6t_imq_info), -+ .checkentry = imq_checkentry, -+ .me = THIS_MODULE -+}; -+ -+static int __init init(void) -+{ -+ if (ip6t_register_target(&ip6t_imq_reg)) -+ return -EINVAL; -+ -+ return 0; -+} -+ -+static void __exit fini(void) -+{ -+ ip6t_unregister_target(&ip6t_imq_reg); -+} -+ -+module_init(init); -+module_exit(fini); -+ -+MODULE_AUTHOR("http://www.linuximq.net"); -+MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information."); -+MODULE_LICENSE("GPL"); -diff -urN linux-2.6.19.old/net/ipv6/netfilter/Kconfig linux-2.6.19.dev/net/ipv6/netfilter/Kconfig ---- linux-2.6.19.old/net/ipv6/netfilter/Kconfig 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv6/netfilter/Kconfig 2006-12-14 03:13:47.000000000 +0100 -@@ -134,6 +134,15 @@ - - To compile it as a module, choose M here. If unsure, say N. - -+config IP6_NF_TARGET_IMQ -+ tristate "IMQ target support" -+ depends on IP6_NF_MANGLE -+ help -+ This option adds a `IMQ' target which is used to specify if and -+ to which imq device packets should get enqueued/dequeued. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ - config IP6_NF_TARGET_LOG - tristate "LOG target support" - depends on IP6_NF_FILTER -diff -urN linux-2.6.19.old/net/ipv6/netfilter/Makefile linux-2.6.19.dev/net/ipv6/netfilter/Makefile ---- linux-2.6.19.old/net/ipv6/netfilter/Makefile 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv6/netfilter/Makefile 2006-12-14 03:13:47.000000000 +0100 -@@ -4,6 +4,7 @@ - - # Link order matters here. - obj-$(CONFIG_IP6_NF_IPTABLES) += ip6_tables.o -+obj-$(CONFIG_IP6_NF_TARGET_IMQ) += ip6t_IMQ.o - obj-$(CONFIG_IP6_NF_MATCH_RT) += ip6t_rt.o - obj-$(CONFIG_IP6_NF_MATCH_OPTS) += ip6t_hbh.o - obj-$(CONFIG_IP6_NF_MATCH_IPV6HEADER) += ip6t_ipv6header.o -diff -urN linux-2.6.19.old/net/sched/sch_generic.c linux-2.6.19.dev/net/sched/sch_generic.c ---- linux-2.6.19.old/net/sched/sch_generic.c 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/sched/sch_generic.c 2006-12-14 03:13:47.000000000 +0100 -@@ -28,6 +28,9 @@ - #include - #include - #include -+#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) -+#include -+#endif - #include - #include - #include -@@ -615,5 +618,6 @@ - EXPORT_SYMBOL(qdisc_alloc); - EXPORT_SYMBOL(qdisc_destroy); - EXPORT_SYMBOL(qdisc_reset); -+EXPORT_SYMBOL(__qdisc_run); - EXPORT_SYMBOL(qdisc_lock_tree); - EXPORT_SYMBOL(qdisc_unlock_tree); diff --git a/target/linux/generic-2.6/patches/108-netfilter_route.patch b/target/linux/generic-2.6/patches/108-netfilter_route.patch deleted file mode 100644 index 7e8491c3e3..0000000000 --- a/target/linux/generic-2.6/patches/108-netfilter_route.patch +++ /dev/null @@ -1,902 +0,0 @@ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_ROUTE.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_ROUTE.h ---- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_ROUTE.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_ROUTE.h 2006-12-14 03:13:49.000000000 +0100 -@@ -0,0 +1,23 @@ -+/* Header file for iptables ipt_ROUTE target -+ * -+ * (C) 2002 by Cédric de Launois -+ * -+ * This software is distributed under GNU GPL v2, 1991 -+ */ -+#ifndef _IPT_ROUTE_H_target -+#define _IPT_ROUTE_H_target -+ -+#define IPT_ROUTE_IFNAMSIZ 16 -+ -+struct ipt_route_target_info { -+ char oif[IPT_ROUTE_IFNAMSIZ]; /* Output Interface Name */ -+ char iif[IPT_ROUTE_IFNAMSIZ]; /* Input Interface Name */ -+ u_int32_t gw; /* IP address of gateway */ -+ u_int8_t flags; -+}; -+ -+/* Values for "flags" field */ -+#define IPT_ROUTE_CONTINUE 0x01 -+#define IPT_ROUTE_TEE 0x02 -+ -+#endif /*_IPT_ROUTE_H_target*/ -diff -urN linux-2.6.19.old/include/linux/netfilter_ipv6/ip6t_ROUTE.h linux-2.6.19.dev/include/linux/netfilter_ipv6/ip6t_ROUTE.h ---- linux-2.6.19.old/include/linux/netfilter_ipv6/ip6t_ROUTE.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/include/linux/netfilter_ipv6/ip6t_ROUTE.h 2006-12-14 03:13:49.000000000 +0100 -@@ -0,0 +1,23 @@ -+/* Header file for iptables ip6t_ROUTE target -+ * -+ * (C) 2003 by Cédric de Launois -+ * -+ * This software is distributed under GNU GPL v2, 1991 -+ */ -+#ifndef _IPT_ROUTE_H_target -+#define _IPT_ROUTE_H_target -+ -+#define IP6T_ROUTE_IFNAMSIZ 16 -+ -+struct ip6t_route_target_info { -+ char oif[IP6T_ROUTE_IFNAMSIZ]; /* Output Interface Name */ -+ char iif[IP6T_ROUTE_IFNAMSIZ]; /* Input Interface Name */ -+ u_int32_t gw[4]; /* IPv6 address of gateway */ -+ u_int8_t flags; -+}; -+ -+/* Values for "flags" field */ -+#define IP6T_ROUTE_CONTINUE 0x01 -+#define IP6T_ROUTE_TEE 0x02 -+ -+#endif /*_IP6T_ROUTE_H_target*/ -diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_ROUTE.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_ROUTE.c ---- linux-2.6.19.old/net/ipv4/netfilter/ipt_ROUTE.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_ROUTE.c 2006-12-14 03:13:49.000000000 +0100 -@@ -0,0 +1,455 @@ -+/* -+ * This implements the ROUTE target, which enables you to setup unusual -+ * routes not supported by the standard kernel routing table. -+ * -+ * Copyright (C) 2002 Cedric de Launois -+ * -+ * v 1.11 2004/11/23 -+ * -+ * This software is distributed under GNU GPL v2, 1991 -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#if 0 -+#define DEBUGP printk -+#else -+#define DEBUGP(format, args...) -+#endif -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Cedric de Launois "); -+MODULE_DESCRIPTION("iptables ROUTE target module"); -+ -+/* Try to route the packet according to the routing keys specified in -+ * route_info. Keys are : -+ * - ifindex : -+ * 0 if no oif preferred, -+ * otherwise set to the index of the desired oif -+ * - route_info->gw : -+ * 0 if no gateway specified, -+ * otherwise set to the next host to which the pkt must be routed -+ * If success, skb->dev is the output device to which the packet must -+ * be sent and skb->dst is not NULL -+ * -+ * RETURN: -1 if an error occured -+ * 1 if the packet was succesfully routed to the -+ * destination desired -+ * 0 if the kernel routing table could not route the packet -+ * according to the keys specified -+ */ -+static int route(struct sk_buff *skb, -+ unsigned int ifindex, -+ const struct ipt_route_target_info *route_info) -+{ -+ int err; -+ struct rtable *rt; -+ struct iphdr *iph = skb->nh.iph; -+ struct flowi fl = { -+ .oif = ifindex, -+ .nl_u = { -+ .ip4_u = { -+ .daddr = iph->daddr, -+ .saddr = 0, -+ .tos = RT_TOS(iph->tos), -+ .scope = RT_SCOPE_UNIVERSE, -+ } -+ } -+ }; -+ -+ /* The destination address may be overloaded by the target */ -+ if (route_info->gw) -+ fl.fl4_dst = route_info->gw; -+ -+ /* Trying to route the packet using the standard routing table. */ -+ if ((err = ip_route_output_key(&rt, &fl))) { -+ if (net_ratelimit()) -+ DEBUGP("ipt_ROUTE: couldn't route pkt (err: %i)",err); -+ return -1; -+ } -+ -+ /* Drop old route. */ -+ dst_release(skb->dst); -+ skb->dst = NULL; -+ -+ /* Success if no oif specified or if the oif correspond to the -+ * one desired */ -+ if (!ifindex || rt->u.dst.dev->ifindex == ifindex) { -+ skb->dst = &rt->u.dst; -+ skb->dev = skb->dst->dev; -+ skb->protocol = htons(ETH_P_IP); -+ return 1; -+ } -+ -+ /* The interface selected by the routing table is not the one -+ * specified by the user. This may happen because the dst address -+ * is one of our own addresses. -+ */ -+ if (net_ratelimit()) -+ DEBUGP("ipt_ROUTE: failed to route as desired gw=%u.%u.%u.%u oif=%i (got oif=%i)\n", -+ NIPQUAD(route_info->gw), ifindex, rt->u.dst.dev->ifindex); -+ -+ return 0; -+} -+ -+ -+/* Stolen from ip_finish_output2 -+ * PRE : skb->dev is set to the device we are leaving by -+ * skb->dst is not NULL -+ * POST: the packet is sent with the link layer header pushed -+ * the packet is destroyed -+ */ -+static void ip_direct_send(struct sk_buff *skb) -+{ -+ struct dst_entry *dst = skb->dst; -+ struct hh_cache *hh = dst->hh; -+ struct net_device *dev = dst->dev; -+ int hh_len = LL_RESERVED_SPACE(dev); -+ -+ /* Be paranoid, rather than too clever. */ -+ if (unlikely(skb_headroom(skb) < hh_len && dev->hard_header)) { -+ struct sk_buff *skb2; -+ -+ skb2 = skb_realloc_headroom(skb, LL_RESERVED_SPACE(dev)); -+ if (skb2 == NULL) { -+ kfree_skb(skb); -+ return; -+ } -+ if (skb->sk) -+ skb_set_owner_w(skb2, skb->sk); -+ kfree_skb(skb); -+ skb = skb2; -+ } -+ -+ if (hh) { -+ int hh_alen; -+ -+ read_lock_bh(&hh->hh_lock); -+ hh_alen = HH_DATA_ALIGN(hh->hh_len); -+ memcpy(skb->data - hh_alen, hh->hh_data, hh_alen); -+ read_unlock_bh(&hh->hh_lock); -+ skb_push(skb, hh->hh_len); -+ hh->hh_output(skb); -+ } else if (dst->neighbour) -+ dst->neighbour->output(skb); -+ else { -+ if (net_ratelimit()) -+ DEBUGP(KERN_DEBUG "ipt_ROUTE: no hdr & no neighbour cache!\n"); -+ kfree_skb(skb); -+ } -+} -+ -+ -+/* PRE : skb->dev is set to the device we are leaving by -+ * POST: - the packet is directly sent to the skb->dev device, without -+ * pushing the link layer header. -+ * - the packet is destroyed -+ */ -+static inline int dev_direct_send(struct sk_buff *skb) -+{ -+ return dev_queue_xmit(skb); -+} -+ -+ -+static unsigned int route_oif(const struct ipt_route_target_info *route_info, -+ struct sk_buff *skb) -+{ -+ unsigned int ifindex = 0; -+ struct net_device *dev_out = NULL; -+ -+ /* The user set the interface name to use. -+ * Getting the current interface index. -+ */ -+ if ((dev_out = dev_get_by_name(route_info->oif))) { -+ ifindex = dev_out->ifindex; -+ } else { -+ /* Unknown interface name : packet dropped */ -+ if (net_ratelimit()) -+ DEBUGP("ipt_ROUTE: oif interface %s not found\n", route_info->oif); -+ return NF_DROP; -+ } -+ -+ /* Trying the standard way of routing packets */ -+ switch (route(skb, ifindex, route_info)) { -+ case 1: -+ dev_put(dev_out); -+ if (route_info->flags & IPT_ROUTE_CONTINUE) -+ return IPT_CONTINUE; -+ -+ ip_direct_send(skb); -+ return NF_STOLEN; -+ -+ case 0: -+ /* Failed to send to oif. Trying the hard way */ -+ if (route_info->flags & IPT_ROUTE_CONTINUE) -+ return NF_DROP; -+ -+ if (net_ratelimit()) -+ DEBUGP("ipt_ROUTE: forcing the use of %i\n", -+ ifindex); -+ -+ /* We have to force the use of an interface. -+ * This interface must be a tunnel interface since -+ * otherwise we can't guess the hw address for -+ * the packet. For a tunnel interface, no hw address -+ * is needed. -+ */ -+ if ((dev_out->type != ARPHRD_TUNNEL) -+ && (dev_out->type != ARPHRD_IPGRE)) { -+ if (net_ratelimit()) -+ DEBUGP("ipt_ROUTE: can't guess the hw addr !\n"); -+ dev_put(dev_out); -+ return NF_DROP; -+ } -+ -+ /* Send the packet. This will also free skb -+ * Do not go through the POST_ROUTING hook because -+ * skb->dst is not set and because it will probably -+ * get confused by the destination IP address. -+ */ -+ skb->dev = dev_out; -+ dev_direct_send(skb); -+ dev_put(dev_out); -+ return NF_STOLEN; -+ -+ default: -+ /* Unexpected error */ -+ dev_put(dev_out); -+ return NF_DROP; -+ } -+} -+ -+ -+static unsigned int route_iif(const struct ipt_route_target_info *route_info, -+ struct sk_buff *skb) -+{ -+ struct net_device *dev_in = NULL; -+ -+ /* Getting the current interface index. */ -+ if (!(dev_in = dev_get_by_name(route_info->iif))) { -+ if (net_ratelimit()) -+ DEBUGP("ipt_ROUTE: iif interface %s not found\n", route_info->iif); -+ return NF_DROP; -+ } -+ -+ skb->dev = dev_in; -+ dst_release(skb->dst); -+ skb->dst = NULL; -+ -+ netif_rx(skb); -+ dev_put(dev_in); -+ return NF_STOLEN; -+} -+ -+ -+static unsigned int route_gw(const struct ipt_route_target_info *route_info, -+ struct sk_buff *skb) -+{ -+ if (route(skb, 0, route_info)!=1) -+ return NF_DROP; -+ -+ if (route_info->flags & IPT_ROUTE_CONTINUE) -+ return IPT_CONTINUE; -+ -+ ip_direct_send(skb); -+ return NF_STOLEN; -+} -+ -+ -+/* To detect and deter routed packet loopback when using the --tee option, -+ * we take a page out of the raw.patch book: on the copied skb, we set up -+ * a fake ->nfct entry, pointing to the local &route_tee_track. We skip -+ * routing packets when we see they already have that ->nfct. -+ */ -+ -+static struct ip_conntrack route_tee_track; -+ -+static unsigned int ipt_route_target(struct sk_buff **pskb, -+ const struct net_device *in, -+ const struct net_device *out, -+ unsigned int hooknum, -+ const struct xt_target *target, -+ const void *targinfo) -+{ -+ const struct ipt_route_target_info *route_info = targinfo; -+ struct sk_buff *skb = *pskb; -+ unsigned int res; -+ -+ if (skb->nfct == &route_tee_track.ct_general) { -+ /* Loopback - a packet we already routed, is to be -+ * routed another time. Avoid that, now. -+ */ -+ if (net_ratelimit()) -+ DEBUGP(KERN_DEBUG "ipt_ROUTE: loopback - DROP!\n"); -+ return NF_DROP; -+ } -+ -+ /* If we are at PREROUTING or INPUT hook -+ * the TTL isn't decreased by the IP stack -+ */ -+ if (hooknum == NF_IP_PRE_ROUTING || -+ hooknum == NF_IP_LOCAL_IN) { -+ -+ struct iphdr *iph = skb->nh.iph; -+ -+ if (iph->ttl <= 1) { -+ struct rtable *rt; -+ struct flowi fl = { -+ .oif = 0, -+ .nl_u = { -+ .ip4_u = { -+ .daddr = iph->daddr, -+ .saddr = iph->saddr, -+ .tos = RT_TOS(iph->tos), -+ .scope = ((iph->tos & RTO_ONLINK) ? -+ RT_SCOPE_LINK : -+ RT_SCOPE_UNIVERSE) -+ } -+ } -+ }; -+ -+ if (ip_route_output_key(&rt, &fl)) { -+ return NF_DROP; -+ } -+ -+ if (skb->dev == rt->u.dst.dev) { -+ /* Drop old route. */ -+ dst_release(skb->dst); -+ skb->dst = &rt->u.dst; -+ -+ /* this will traverse normal stack, and -+ * thus call conntrack on the icmp packet */ -+ icmp_send(skb, ICMP_TIME_EXCEEDED, -+ ICMP_EXC_TTL, 0); -+ } -+ -+ return NF_DROP; -+ } -+ -+ /* -+ * If we are at INPUT the checksum must be recalculated since -+ * the length could change as the result of a defragmentation. -+ */ -+ if(hooknum == NF_IP_LOCAL_IN) { -+ iph->ttl = iph->ttl - 1; -+ iph->check = 0; -+ iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); -+ } else { -+ ip_decrease_ttl(iph); -+ } -+ } -+ -+ if ((route_info->flags & IPT_ROUTE_TEE)) { -+ /* -+ * Copy the *pskb, and route the copy. Will later return -+ * IPT_CONTINUE for the original skb, which should continue -+ * on its way as if nothing happened. The copy should be -+ * independantly delivered to the ROUTE --gw. -+ */ -+ skb = skb_copy(*pskb, GFP_ATOMIC); -+ if (!skb) { -+ if (net_ratelimit()) -+ DEBUGP(KERN_DEBUG "ipt_ROUTE: copy failed!\n"); -+ return IPT_CONTINUE; -+ } -+ } -+ -+ /* Tell conntrack to forget this packet since it may get confused -+ * when a packet is leaving with dst address == our address. -+ * Good idea ? Dunno. Need advice. -+ * -+ * NEW: mark the skb with our &route_tee_track, so we avoid looping -+ * on any already routed packet. -+ */ -+ if (!(route_info->flags & IPT_ROUTE_CONTINUE)) { -+ nf_conntrack_put(skb->nfct); -+ skb->nfct = &route_tee_track.ct_general; -+ skb->nfctinfo = IP_CT_NEW; -+ nf_conntrack_get(skb->nfct); -+ } -+ -+ if (route_info->oif[0] != '\0') { -+ res = route_oif(route_info, skb); -+ } else if (route_info->iif[0] != '\0') { -+ res = route_iif(route_info, skb); -+ } else if (route_info->gw) { -+ res = route_gw(route_info, skb); -+ } else { -+ if (net_ratelimit()) -+ DEBUGP(KERN_DEBUG "ipt_ROUTE: no parameter !\n"); -+ res = IPT_CONTINUE; -+ } -+ -+ if ((route_info->flags & IPT_ROUTE_TEE)) -+ res = IPT_CONTINUE; -+ -+ return res; -+} -+ -+ -+static int ipt_route_checkentry(const char *tablename, -+ const void *e, -+ const struct xt_target *target, -+ void *targinfo, -+ unsigned int hook_mask) -+{ -+ if (strcmp(tablename, "mangle") != 0) { -+ printk("ipt_ROUTE: bad table `%s', use the `mangle' table.\n", -+ tablename); -+ return 0; -+ } -+ -+ if (hook_mask & ~( (1 << NF_IP_PRE_ROUTING) -+ | (1 << NF_IP_LOCAL_IN) -+ | (1 << NF_IP_FORWARD) -+ | (1 << NF_IP_LOCAL_OUT) -+ | (1 << NF_IP_POST_ROUTING))) { -+ printk("ipt_ROUTE: bad hook\n"); -+ return 0; -+ } -+ -+ return 1; -+} -+ -+ -+static struct ipt_target ipt_route_reg = { -+ .name = "ROUTE", -+ .target = ipt_route_target, -+ .targetsize = sizeof(struct ipt_route_target_info), -+ .checkentry = ipt_route_checkentry, -+ .me = THIS_MODULE, -+}; -+ -+static int __init init(void) -+{ -+ /* Set up fake conntrack (stolen from raw.patch): -+ - to never be deleted, not in any hashes */ -+ atomic_set(&route_tee_track.ct_general.use, 1); -+ /* - and look it like as a confirmed connection */ -+ set_bit(IPS_CONFIRMED_BIT, &route_tee_track.status); -+ /* Initialize fake conntrack so that NAT will skip it */ -+ route_tee_track.status |= IPS_NAT_DONE_MASK; -+ -+ return ipt_register_target(&ipt_route_reg); -+} -+ -+ -+static void __exit fini(void) -+{ -+ ipt_unregister_target(&ipt_route_reg); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig ---- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:49.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:49.000000000 +0100 -@@ -494,6 +494,23 @@ - - To compile it as a module, choose M here. If unsure, say N. - -+config IP_NF_TARGET_ROUTE -+ tristate 'ROUTE target support' -+ depends on IP_NF_MANGLE -+ help -+ This option adds a `ROUTE' target, which enables you to setup unusual -+ routes. For example, the ROUTE lets you route a received packet through -+ an interface or towards a host, even if the regular destination of the -+ packet is the router itself. The ROUTE target is also able to change the -+ incoming interface of a packet. -+ -+ The target can be or not a final target. It has to be used inside the -+ mangle table. -+ -+ If you want to compile it as a module, say M here and read -+ Documentation/modules.txt. The module will be called ipt_ROUTE.o. -+ If unsure, say `N'. -+ - config IP_NF_TARGET_NETMAP - tristate "NETMAP target support" - depends on IP_NF_NAT -diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile ---- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:49.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:49.000000000 +0100 -@@ -74,6 +74,7 @@ - obj-$(CONFIG_IP_NF_TARGET_IMQ) += ipt_IMQ.o - obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o - obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o -+obj-$(CONFIG_IP_NF_TARGET_ROUTE) += ipt_ROUTE.o - obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o - obj-$(CONFIG_IP_NF_TARGET_SAME) += ipt_SAME.o - obj-$(CONFIG_IP_NF_NAT_SNMP_BASIC) += ip_nat_snmp_basic.o -diff -urN linux-2.6.19.old/net/ipv6/ipv6_syms.c linux-2.6.19.dev/net/ipv6/ipv6_syms.c ---- linux-2.6.19.old/net/ipv6/ipv6_syms.c 2006-11-29 22:57:37.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv6/ipv6_syms.c 2006-12-14 03:13:49.000000000 +0100 -@@ -11,6 +11,7 @@ - EXPORT_SYMBOL(icmpv6_statistics); - EXPORT_SYMBOL(icmpv6_err_convert); - EXPORT_SYMBOL(ndisc_mc_map); -+EXPORT_SYMBOL(nd_tbl); - EXPORT_SYMBOL(register_inet6addr_notifier); - EXPORT_SYMBOL(unregister_inet6addr_notifier); - EXPORT_SYMBOL(ip6_route_output); -diff -urN linux-2.6.19.old/net/ipv6/netfilter/ip6t_ROUTE.c linux-2.6.19.dev/net/ipv6/netfilter/ip6t_ROUTE.c ---- linux-2.6.19.old/net/ipv6/netfilter/ip6t_ROUTE.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv6/netfilter/ip6t_ROUTE.c 2006-12-14 03:13:49.000000000 +0100 -@@ -0,0 +1,302 @@ -+/* -+ * This implements the ROUTE v6 target, which enables you to setup unusual -+ * routes not supported by the standard kernel routing table. -+ * -+ * Copyright (C) 2003 Cedric de Launois -+ * -+ * v 1.1 2004/11/23 -+ * -+ * This software is distributed under GNU GPL v2, 1991 -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#if 1 -+#define DEBUGP printk -+#else -+#define DEBUGP(format, args...) -+#endif -+ -+#define NIP6(addr) \ -+ ntohs((addr).s6_addr16[0]), \ -+ ntohs((addr).s6_addr16[1]), \ -+ ntohs((addr).s6_addr16[2]), \ -+ ntohs((addr).s6_addr16[3]), \ -+ ntohs((addr).s6_addr16[4]), \ -+ ntohs((addr).s6_addr16[5]), \ -+ ntohs((addr).s6_addr16[6]), \ -+ ntohs((addr).s6_addr16[7]) -+ -+/* Route the packet according to the routing keys specified in -+ * route_info. Keys are : -+ * - ifindex : -+ * 0 if no oif preferred, -+ * otherwise set to the index of the desired oif -+ * - route_info->gw : -+ * 0 if no gateway specified, -+ * otherwise set to the next host to which the pkt must be routed -+ * If success, skb->dev is the output device to which the packet must -+ * be sent and skb->dst is not NULL -+ * -+ * RETURN: 1 if the packet was succesfully routed to the -+ * destination desired -+ * 0 if the kernel routing table could not route the packet -+ * according to the keys specified -+ */ -+static int -+route6(struct sk_buff *skb, -+ unsigned int ifindex, -+ const struct ip6t_route_target_info *route_info) -+{ -+ struct rt6_info *rt = NULL; -+ struct ipv6hdr *ipv6h = skb->nh.ipv6h; -+ struct in6_addr *gw = (struct in6_addr*)&route_info->gw; -+ -+ DEBUGP("ip6t_ROUTE: called with: "); -+ DEBUGP("DST=%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x ", NIP6(ipv6h->daddr)); -+ DEBUGP("GATEWAY=%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x ", NIP6(*gw)); -+ DEBUGP("OUT=%s\n", route_info->oif); -+ -+ if (ipv6_addr_any(gw)) -+ rt = rt6_lookup(&ipv6h->daddr, &ipv6h->saddr, ifindex, 1); -+ else -+ rt = rt6_lookup(gw, &ipv6h->saddr, ifindex, 1); -+ -+ if (!rt) -+ goto no_route; -+ -+ DEBUGP("ip6t_ROUTE: routing gives: "); -+ DEBUGP("DST=%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x ", NIP6(rt->rt6i_dst.addr)); -+ DEBUGP("GATEWAY=%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x ", NIP6(rt->rt6i_gateway)); -+ DEBUGP("OUT=%s\n", rt->rt6i_dev->name); -+ -+ if (ifindex && rt->rt6i_dev->ifindex!=ifindex) -+ goto wrong_route; -+ -+ if (!rt->rt6i_nexthop) { -+ DEBUGP("ip6t_ROUTE: discovering neighbour\n"); -+ rt->rt6i_nexthop = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_dst.addr); -+ } -+ -+ /* Drop old route. */ -+ dst_release(skb->dst); -+ skb->dst = &rt->u.dst; -+ skb->dev = rt->rt6i_dev; -+ return 1; -+ -+ wrong_route: -+ dst_release(&rt->u.dst); -+ no_route: -+ if (!net_ratelimit()) -+ return 0; -+ -+ printk("ip6t_ROUTE: no explicit route found "); -+ if (ifindex) -+ printk("via interface %s ", route_info->oif); -+ if (!ipv6_addr_any(gw)) -+ printk("via gateway %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x", NIP6(*gw)); -+ printk("\n"); -+ return 0; -+} -+ -+ -+/* Stolen from ip6_output_finish -+ * PRE : skb->dev is set to the device we are leaving by -+ * skb->dst is not NULL -+ * POST: the packet is sent with the link layer header pushed -+ * the packet is destroyed -+ */ -+static void ip_direct_send(struct sk_buff *skb) -+{ -+ struct dst_entry *dst = skb->dst; -+ struct hh_cache *hh = dst->hh; -+ -+ if (hh) { -+ read_lock_bh(&hh->hh_lock); -+ memcpy(skb->data - 16, hh->hh_data, 16); -+ read_unlock_bh(&hh->hh_lock); -+ skb_push(skb, hh->hh_len); -+ hh->hh_output(skb); -+ } else if (dst->neighbour) -+ dst->neighbour->output(skb); -+ else { -+ if (net_ratelimit()) -+ DEBUGP(KERN_DEBUG "ip6t_ROUTE: no hdr & no neighbour cache!\n"); -+ kfree_skb(skb); -+ } -+} -+ -+ -+static unsigned int -+route6_oif(const struct ip6t_route_target_info *route_info, -+ struct sk_buff *skb) -+{ -+ unsigned int ifindex = 0; -+ struct net_device *dev_out = NULL; -+ -+ /* The user set the interface name to use. -+ * Getting the current interface index. -+ */ -+ if ((dev_out = dev_get_by_name(route_info->oif))) { -+ ifindex = dev_out->ifindex; -+ } else { -+ /* Unknown interface name : packet dropped */ -+ if (net_ratelimit()) -+ DEBUGP("ip6t_ROUTE: oif interface %s not found\n", route_info->oif); -+ -+ if (route_info->flags & IP6T_ROUTE_CONTINUE) -+ return IP6T_CONTINUE; -+ else -+ return NF_DROP; -+ } -+ -+ /* Trying the standard way of routing packets */ -+ if (route6(skb, ifindex, route_info)) { -+ dev_put(dev_out); -+ if (route_info->flags & IP6T_ROUTE_CONTINUE) -+ return IP6T_CONTINUE; -+ -+ ip_direct_send(skb); -+ return NF_STOLEN; -+ } else -+ return NF_DROP; -+} -+ -+ -+static unsigned int -+route6_gw(const struct ip6t_route_target_info *route_info, -+ struct sk_buff *skb) -+{ -+ if (route6(skb, 0, route_info)) { -+ if (route_info->flags & IP6T_ROUTE_CONTINUE) -+ return IP6T_CONTINUE; -+ -+ ip_direct_send(skb); -+ return NF_STOLEN; -+ } else -+ return NF_DROP; -+} -+ -+ -+static unsigned int -+ip6t_route_target(struct sk_buff **pskb, -+ const struct net_device *in, -+ const struct net_device *out, -+ unsigned int hooknum, -+ const struct xt_target *target, -+ const void *targinfo) -+{ -+ const struct ip6t_route_target_info *route_info = targinfo; -+ struct sk_buff *skb = *pskb; -+ struct in6_addr *gw = (struct in6_addr*)&route_info->gw; -+ unsigned int res; -+ -+ if (route_info->flags & IP6T_ROUTE_CONTINUE) -+ goto do_it; -+ -+ /* If we are at PREROUTING or INPUT hook -+ * the TTL isn't decreased by the IP stack -+ */ -+ if (hooknum == NF_IP6_PRE_ROUTING || -+ hooknum == NF_IP6_LOCAL_IN) { -+ -+ struct ipv6hdr *ipv6h = skb->nh.ipv6h; -+ -+ if (ipv6h->hop_limit <= 1) { -+ /* Force OUTPUT device used as source address */ -+ skb->dev = skb->dst->dev; -+ -+ icmpv6_send(skb, ICMPV6_TIME_EXCEED, -+ ICMPV6_EXC_HOPLIMIT, 0, skb->dev); -+ -+ return NF_DROP; -+ } -+ -+ ipv6h->hop_limit--; -+ } -+ -+ if ((route_info->flags & IP6T_ROUTE_TEE)) { -+ /* -+ * Copy the *pskb, and route the copy. Will later return -+ * IP6T_CONTINUE for the original skb, which should continue -+ * on its way as if nothing happened. The copy should be -+ * independantly delivered to the ROUTE --gw. -+ */ -+ skb = skb_copy(*pskb, GFP_ATOMIC); -+ if (!skb) { -+ if (net_ratelimit()) -+ DEBUGP(KERN_DEBUG "ip6t_ROUTE: copy failed!\n"); -+ return IP6T_CONTINUE; -+ } -+ } -+ -+do_it: -+ if (route_info->oif[0]) { -+ res = route6_oif(route_info, skb); -+ } else if (!ipv6_addr_any(gw)) { -+ res = route6_gw(route_info, skb); -+ } else { -+ if (net_ratelimit()) -+ DEBUGP(KERN_DEBUG "ip6t_ROUTE: no parameter !\n"); -+ res = IP6T_CONTINUE; -+ } -+ -+ if ((route_info->flags & IP6T_ROUTE_TEE)) -+ res = IP6T_CONTINUE; -+ -+ return res; -+} -+ -+ -+static int -+ip6t_route_checkentry(const char *tablename, -+ const void *e, -+ const struct xt_target *target, -+ void *targinfo, -+ unsigned int hook_mask) -+{ -+ if (strcmp(tablename, "mangle") != 0) { -+ printk("ip6t_ROUTE: can only be called from \"mangle\" table.\n"); -+ return 0; -+ } -+ -+ return 1; -+} -+ -+ -+static struct ip6t_target ip6t_route_reg = { -+ .name = "ROUTE", -+ .target = ip6t_route_target, -+ .targetsize = sizeof(struct ip6t_route_target_info), -+ .checkentry = ip6t_route_checkentry, -+ .me = THIS_MODULE -+}; -+ -+ -+static int __init init(void) -+{ -+ printk(KERN_DEBUG "registering ipv6 ROUTE target\n"); -+ if (ip6t_register_target(&ip6t_route_reg)) -+ return -EINVAL; -+ -+ return 0; -+} -+ -+ -+static void __exit fini(void) -+{ -+ ip6t_unregister_target(&ip6t_route_reg); -+} -+ -+module_init(init); -+module_exit(fini); -+MODULE_LICENSE("GPL"); -diff -urN linux-2.6.19.old/net/ipv6/netfilter/Kconfig linux-2.6.19.dev/net/ipv6/netfilter/Kconfig ---- linux-2.6.19.old/net/ipv6/netfilter/Kconfig 2006-12-14 03:13:49.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv6/netfilter/Kconfig 2006-12-14 03:13:49.000000000 +0100 -@@ -162,6 +162,19 @@ - - To compile it as a module, choose M here. If unsure, say N. - -+config IP6_NF_TARGET_ROUTE -+ tristate "ROUTE target support" -+ depends on IP6_NF_MANGLE -+ help -+ This option adds a `ROUTE' target, which enables you to setup unusual -+ routes. The ROUTE target is also able to change the incoming interface -+ of a packet. -+ -+ The target can be or not a final target. It has to be used inside the -+ mangle table. -+ -+ Not working as a module. -+ - config IP6_NF_MANGLE - tristate "Packet mangling" - depends on IP6_NF_IPTABLES -diff -urN linux-2.6.19.old/net/ipv6/netfilter/Makefile linux-2.6.19.dev/net/ipv6/netfilter/Makefile ---- linux-2.6.19.old/net/ipv6/netfilter/Makefile 2006-12-14 03:13:49.000000000 +0100 -+++ linux-2.6.19.dev/net/ipv6/netfilter/Makefile 2006-12-14 03:13:49.000000000 +0100 -@@ -20,6 +20,7 @@ - obj-$(CONFIG_IP6_NF_RAW) += ip6table_raw.o - obj-$(CONFIG_IP6_NF_MATCH_HL) += ip6t_hl.o - obj-$(CONFIG_IP6_NF_TARGET_REJECT) += ip6t_REJECT.o -+obj-$(CONFIG_IP6_NF_TARGET_ROUTE) += ip6t_ROUTE.o - - # objects for l3 independent conntrack - nf_conntrack_ipv6-objs := nf_conntrack_l3proto_ipv6.o nf_conntrack_proto_icmpv6.o nf_conntrack_reasm.o diff --git a/target/linux/generic-2.6/patches/110-ipp2p_0.8.1rc1.patch b/target/linux/generic-2.6/patches/110-ipp2p_0.8.1rc1.patch new file mode 100644 index 0000000000..e03f4d5676 --- /dev/null +++ b/target/linux/generic-2.6/patches/110-ipp2p_0.8.1rc1.patch @@ -0,0 +1,948 @@ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_ipp2p.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_ipp2p.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_ipp2p.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_ipp2p.h 2006-12-14 03:13:39.000000000 +0100 +@@ -0,0 +1,31 @@ ++#ifndef __IPT_IPP2P_H ++#define __IPT_IPP2P_H ++#define IPP2P_VERSION "0.8.1_rc1" ++ ++struct ipt_p2p_info { ++ int cmd; ++ int debug; ++}; ++ ++#endif //__IPT_IPP2P_H ++ ++#define SHORT_HAND_IPP2P 1 /* --ipp2p switch*/ ++//#define SHORT_HAND_DATA 4 /* --ipp2p-data switch*/ ++#define SHORT_HAND_NONE 5 /* no short hand*/ ++ ++#define IPP2P_EDK (1 << 1) ++#define IPP2P_DATA_KAZAA (1 << 2) ++#define IPP2P_DATA_EDK (1 << 3) ++#define IPP2P_DATA_DC (1 << 4) ++#define IPP2P_DC (1 << 5) ++#define IPP2P_DATA_GNU (1 << 6) ++#define IPP2P_GNU (1 << 7) ++#define IPP2P_KAZAA (1 << 8) ++#define IPP2P_BIT (1 << 9) ++#define IPP2P_APPLE (1 << 10) ++#define IPP2P_SOUL (1 << 11) ++#define IPP2P_WINMX (1 << 12) ++#define IPP2P_ARES (1 << 13) ++#define IPP2P_MUTE (1 << 14) ++#define IPP2P_WASTE (1 << 15) ++#define IPP2P_XDCC (1 << 16) +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_ipp2p.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_ipp2p.c +--- linux-2.6.19.old/net/ipv4/netfilter/ipt_ipp2p.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_ipp2p.c 2006-12-14 03:13:39.000000000 +0100 +@@ -0,0 +1,881 @@ ++#if defined(MODVERSIONS) ++#include ++#endif ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#define get_u8(X,O) (*(__u8 *)(X + O)) ++#define get_u16(X,O) (*(__u16 *)(X + O)) ++#define get_u32(X,O) (*(__u32 *)(X + O)) ++ ++MODULE_AUTHOR("Eicke Friedrich/Klaus Degner "); ++MODULE_DESCRIPTION("An extension to iptables to identify P2P traffic."); ++MODULE_LICENSE("GPL"); ++ ++ ++/*Search for UDP eDonkey/eMule/Kad commands*/ ++int ++udp_search_edk (unsigned char *haystack, int packet_len) ++{ ++ unsigned char *t = haystack; ++ t += 8; ++ ++ switch (t[0]) { ++ case 0xe3: ++ { /*edonkey*/ ++ switch (t[1]) ++ { ++ /* client -> server status request */ ++ case 0x96: ++ if (packet_len == 14) return ((IPP2P_EDK * 100) + 50); ++ break; ++ /* server -> client status request */ ++ case 0x97: if (packet_len == 42) return ((IPP2P_EDK * 100) + 51); ++ break; ++ /* server description request */ ++ /* e3 2a ff f0 .. | size == 6 */ ++ case 0xa2: if ( (packet_len == 14) && ( get_u16(t,2) == __constant_htons(0xfff0) ) ) return ((IPP2P_EDK * 100) + 52); ++ break; ++ /* server description response */ ++ /* e3 a3 ff f0 .. | size > 40 && size < 200 */ ++ //case 0xa3: return ((IPP2P_EDK * 100) + 53); ++ // break; ++ case 0x9a: if (packet_len==26) return ((IPP2P_EDK * 100) + 54); ++ break; ++ ++ case 0x92: if (packet_len==18) return ((IPP2P_EDK * 100) + 55); ++ break; ++ } ++ break; ++ } ++ case 0xe4: ++ { ++ switch (t[1]) ++ { ++ /* e4 20 .. | size == 43 */ ++ case 0x20: if ((packet_len == 43) && (t[2] != 0x00) && (t[34] != 0x00)) return ((IPP2P_EDK * 100) + 60); ++ break; ++ /* e4 00 .. 00 | size == 35 ? */ ++ case 0x00: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 61); ++ break; ++ /* e4 10 .. 00 | size == 35 ? */ ++ case 0x10: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 62); ++ break; ++ /* e4 18 .. 00 | size == 35 ? */ ++ case 0x18: if ((packet_len == 35) && (t[26] == 0x00)) return ((IPP2P_EDK * 100) + 63); ++ break; ++ /* e4 52 .. | size = 44 */ ++ case 0x52: if (packet_len == 44 ) return ((IPP2P_EDK * 100) + 64); ++ break; ++ /* e4 58 .. | size == 6 */ ++ case 0x58: if (packet_len == 14 ) return ((IPP2P_EDK * 100) + 65); ++ break; ++ /* e4 59 .. | size == 2 */ ++ case 0x59: if (packet_len == 10 )return ((IPP2P_EDK * 100) + 66); ++ break; ++ /* e4 28 .. | packet_len == 52,77,102,127... */ ++ case 0x28: if (((packet_len-52) % 25) == 0) return ((IPP2P_EDK * 100) + 67); ++ break; ++ /* e4 50 xx xx | size == 4 */ ++ case 0x50: if (packet_len == 12) return ((IPP2P_EDK * 100) + 68); ++ break; ++ /* e4 40 xx xx | size == 48 */ ++ case 0x40: if (packet_len == 56) return ((IPP2P_EDK * 100) + 69); ++ break; ++ } ++ break; ++ } ++ } /* end of switch (t[0]) */ ++ return 0; ++}/*udp_search_edk*/ ++ ++ ++/*Search for UDP Gnutella commands*/ ++int ++udp_search_gnu (unsigned char *haystack, int packet_len) ++{ ++ unsigned char *t = haystack; ++ t += 8; ++ ++ if (memcmp(t, "GND", 3) == 0) return ((IPP2P_GNU * 100) + 51); ++ if (memcmp(t, "GNUTELLA ", 9) == 0) return ((IPP2P_GNU * 100) + 52); ++ return 0; ++}/*udp_search_gnu*/ ++ ++ ++/*Search for UDP KaZaA commands*/ ++int ++udp_search_kazaa (unsigned char *haystack, int packet_len) ++{ ++ unsigned char *t = haystack; ++ ++ if (t[packet_len-1] == 0x00){ ++ t += (packet_len - 6); ++ if (memcmp(t, "KaZaA", 5) == 0) return (IPP2P_KAZAA * 100 +50); ++ } ++ ++ return 0; ++}/*udp_search_kazaa*/ ++ ++/*Search for UDP DirectConnect commands*/ ++int ++udp_search_directconnect (unsigned char *haystack, int packet_len) ++{ ++ unsigned char *t = haystack; ++ if ((*(t + 8) == 0x24) && (*(t + packet_len - 1) == 0x7c)) { ++ t+=8; ++ if (memcmp(t, "SR ", 3) == 0) return ((IPP2P_DC * 100) + 60); ++ if (memcmp(t, "Ping ", 5) == 0) return ((IPP2P_DC * 100) + 61); ++ } ++ return 0; ++}/*udp_search_directconnect*/ ++ ++ ++ ++/*Search for UDP BitTorrent commands*/ ++int ++udp_search_bit (unsigned char *haystack, int packet_len) ++{ ++ switch(packet_len) ++ { ++ case 24: ++ /* ^ 00 00 04 17 27 10 19 80 */ ++ if ((ntohl(get_u32(haystack, 8)) == 0x00000417) && (ntohl(get_u32(haystack, 12)) == 0x27101980)) ++ return (IPP2P_BIT * 100 + 50); ++ break; ++ case 44: ++ if (get_u32(haystack, 16) == __constant_htonl(0x00000400) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) ++ return (IPP2P_BIT * 100 + 51); ++ if (get_u32(haystack, 16) == __constant_htonl(0x00000400)) ++ return (IPP2P_BIT * 100 + 61); ++ break; ++ case 65: ++ if (get_u32(haystack, 16) == __constant_htonl(0x00000404) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) ++ return (IPP2P_BIT * 100 + 52); ++ if (get_u32(haystack, 16) == __constant_htonl(0x00000404)) ++ return (IPP2P_BIT * 100 + 62); ++ break; ++ case 67: ++ if (get_u32(haystack, 16) == __constant_htonl(0x00000406) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) ++ return (IPP2P_BIT * 100 + 53); ++ if (get_u32(haystack, 16) == __constant_htonl(0x00000406)) ++ return (IPP2P_BIT * 100 + 63); ++ break; ++ case 211: ++ if (get_u32(haystack, 8) == __constant_htonl(0x00000405)) ++ return (IPP2P_BIT * 100 + 54); ++ break; ++ case 29: ++ if ((get_u32(haystack, 8) == __constant_htonl(0x00000401))) ++ return (IPP2P_BIT * 100 + 55); ++ break; ++ case 52: ++ if (get_u32(haystack,8) == __constant_htonl(0x00000827) && ++ get_u32(haystack,12) == __constant_htonl(0x37502950)) ++ return (IPP2P_BIT * 100 + 80); ++ break; ++ default: ++ /* this packet does not have a constant size */ ++ if (packet_len >= 40 && get_u32(haystack, 16) == __constant_htonl(0x00000402) && get_u32(haystack, 36) == __constant_htonl(0x00000104)) ++ return (IPP2P_BIT * 100 + 56); ++ break; ++ } ++ ++ /* some extra-bitcomet rules: ++ * "d1:" [a|r] "d2:id20:" ++ */ ++ if (packet_len > 30 && get_u8(haystack, 8) == 'd' && get_u8(haystack, 9) == '1' && get_u8(haystack, 10) == ':' ) ++ { ++ if (get_u8(haystack, 11) == 'a' || get_u8(haystack, 11) == 'r') ++ { ++ if (memcmp(haystack+12,"d2:id20:",8)==0) ++ return (IPP2P_BIT * 100 + 57); ++ } ++ } ++ ++#if 0 ++ /* bitlord rules */ ++ /* packetlen must be bigger than 40 */ ++ /* first 4 bytes are zero */ ++ if (packet_len > 40 && get_u32(haystack, 8) == 0x00000000) ++ { ++ /* first rule: 00 00 00 00 01 00 00 xx xx xx xx 00 00 00 00*/ ++ if (get_u32(haystack, 12) == 0x00000000 && ++ get_u32(haystack, 16) == 0x00010000 && ++ get_u32(haystack, 24) == 0x00000000 ) ++ return (IPP2P_BIT * 100 + 71); ++ ++ /* 00 01 00 00 0d 00 00 xx xx xx xx 00 00 00 00*/ ++ if (get_u32(haystack, 12) == 0x00000001 && ++ get_u32(haystack, 16) == 0x000d0000 && ++ get_u32(haystack, 24) == 0x00000000 ) ++ return (IPP2P_BIT * 100 + 71); ++ ++ ++ } ++#endif ++ ++ return 0; ++}/*udp_search_bit*/ ++ ++ ++ ++/*Search for Ares commands*/ ++//#define IPP2P_DEBUG_ARES ++int ++search_ares (const unsigned char *payload, const u16 plen) ++//int search_ares (unsigned char *haystack, int packet_len, int head_len) ++{ ++// const unsigned char *t = haystack + head_len; ++ ++ /* all ares packets start with */ ++ if (payload[1] == 0 && (plen - payload[0]) == 3) ++ { ++ switch (payload[2]) ++ { ++ case 0x5a: ++ /* ares connect */ ++ if ( plen == 6 && payload[5] == 0x05 ) return ((IPP2P_ARES * 100) + 1); ++ break; ++ case 0x09: ++ /* ares search, min 3 chars --> 14 bytes ++ * lets define a search can be up to 30 chars --> max 34 bytes ++ */ ++ if ( plen >= 14 && plen <= 34 ) return ((IPP2P_ARES * 100) + 1); ++ break; ++#ifdef IPP2P_DEBUG_ARES ++ default: ++ printk(KERN_DEBUG "Unknown Ares command %x recognized, len: %u \n", (unsigned int) payload[2],plen); ++#endif /* IPP2P_DEBUG_ARES */ ++ } ++ } ++ ++#if 0 ++ /* found connect packet: 03 00 5a 04 03 05 */ ++ /* new version ares 1.8: 03 00 5a xx xx 05 */ ++ if ((plen) == 6){ /* possible connect command*/ ++ if ((payload[0] == 0x03) && (payload[1] == 0x00) && (payload[2] == 0x5a) && (payload[5] == 0x05)) ++ return ((IPP2P_ARES * 100) + 1); ++ } ++ if ((plen) == 60){ /* possible download command*/ ++ if ((payload[59] == 0x0a) && (payload[58] == 0x0a)){ ++ if (memcmp(t, "PUSH SHA1:", 10) == 0) /* found download command */ ++ return ((IPP2P_ARES * 100) + 2); ++ } ++ } ++#endif ++ ++ return 0; ++} /*search_ares*/ ++ ++/*Search for SoulSeek commands*/ ++int ++search_soul (const unsigned char *payload, const u16 plen) ++{ ++//#define IPP2P_DEBUG_SOUL ++ /* match: xx xx xx xx | xx = sizeof(payload) - 4 */ ++ if (get_u32(payload, 0) == (plen - 4)){ ++ const __u32 m=get_u32(payload, 4); ++ /* match 00 yy yy 00, yy can be everything */ ++ if ( get_u8(payload, 4) == 0x00 && get_u8(payload, 7) == 0x00 ) ++ { ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "0: Soulseek command 0x%x recognized\n",get_u32(payload, 4)); ++#endif /* IPP2P_DEBUG_SOUL */ ++ return ((IPP2P_SOUL * 100) + 1); ++ } ++ ++ /* next match: 01 yy 00 00 | yy can be everything */ ++ if ( get_u8(payload, 4) == 0x01 && get_u16(payload, 6) == 0x0000 ) ++ { ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "1: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); ++#endif /* IPP2P_DEBUG_SOUL */ ++ return ((IPP2P_SOUL * 100) + 2); ++ } ++ ++ /* other soulseek commandos are: 1-5,7,9,13-18,22,23,26,28,35-37,40-46,50,51,60,62-69,91,92,1001 */ ++ /* try to do this in an intelligent way */ ++ /* get all small commandos */ ++ switch(m) ++ { ++ case 7: ++ case 9: ++ case 22: ++ case 23: ++ case 26: ++ case 28: ++ case 50: ++ case 51: ++ case 60: ++ case 91: ++ case 92: ++ case 1001: ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "2: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); ++#endif /* IPP2P_DEBUG_SOUL */ ++ return ((IPP2P_SOUL * 100) + 3); ++ } ++ ++ if (m > 0 && m < 6 ) ++ { ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "3: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); ++#endif /* IPP2P_DEBUG_SOUL */ ++ return ((IPP2P_SOUL * 100) + 4); ++ } ++ if (m > 12 && m < 19 ) ++ { ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "4: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); ++#endif /* IPP2P_DEBUG_SOUL */ ++ return ((IPP2P_SOUL * 100) + 5); ++ } ++ ++ if (m > 34 && m < 38 ) ++ { ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "5: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); ++#endif /* IPP2P_DEBUG_SOUL */ ++ return ((IPP2P_SOUL * 100) + 6); ++ } ++ ++ if (m > 39 && m < 47 ) ++ { ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "6: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); ++#endif /* IPP2P_DEBUG_SOUL */ ++ return ((IPP2P_SOUL * 100) + 7); ++ } ++ ++ if (m > 61 && m < 70 ) ++ { ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "7: Soulseek command 0x%x recognized\n",get_u16(payload, 4)); ++#endif /* IPP2P_DEBUG_SOUL */ ++ return ((IPP2P_SOUL * 100) + 8); ++ } ++ ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "unknown SOULSEEK command: 0x%x, first 16 bit: 0x%x, first 8 bit: 0x%x ,soulseek ???\n",get_u32(payload, 4),get_u16(payload, 4) >> 16,get_u8(payload, 4) >> 24); ++#endif /* IPP2P_DEBUG_SOUL */ ++ } ++ ++ /* match 14 00 00 00 01 yy 00 00 00 STRING(YY) 01 00 00 00 00 46|50 00 00 00 00 */ ++ /* without size at the beginning !!! */ ++ if ( get_u32(payload, 0) == 0x14 && get_u8(payload, 4) == 0x01 ) ++ { ++ __u32 y=get_u32(payload, 5); ++ /* we need 19 chars + string */ ++ if ( (y + 19) <= (plen) ) ++ { ++ const unsigned char *w=payload+9+y; ++ if (get_u32(w, 0) == 0x01 && ( get_u16(w, 4) == 0x4600 || get_u16(w, 4) == 0x5000) && get_u32(w, 6) == 0x00); ++#ifdef IPP2P_DEBUG_SOUL ++ printk(KERN_DEBUG "Soulssek special client command recognized\n"); ++#endif /* IPP2P_DEBUG_SOUL */ ++ return ((IPP2P_SOUL * 100) + 9); ++ } ++ } ++ return 0; ++} ++ ++ ++/*Search for WinMX commands*/ ++int ++search_winmx (const unsigned char *payload, const u16 plen) ++{ ++//#define IPP2P_DEBUG_WINMX ++ if (((plen) == 4) && (memcmp(payload, "SEND", 4) == 0)) return ((IPP2P_WINMX * 100) + 1); ++ if (((plen) == 3) && (memcmp(payload, "GET", 3) == 0)) return ((IPP2P_WINMX * 100) + 2); ++ //if (packet_len < (head_len + 10)) return 0; ++ if (plen < 10) return 0; ++ ++ if ((memcmp(payload, "SEND", 4) == 0) || (memcmp(payload, "GET", 3) == 0)){ ++ u16 c=4; ++ const u16 end=plen-2; ++ u8 count=0; ++ while (c < end) ++ { ++ if (payload[c]== 0x20 && payload[c+1] == 0x22) ++ { ++ c++; ++ count++; ++ if (count>=2) return ((IPP2P_WINMX * 100) + 3); ++ } ++ c++; ++ } ++ } ++ ++ if ( plen == 149 && payload[0] == '8' ) ++ { ++#ifdef IPP2P_DEBUG_WINMX ++ printk(KERN_INFO "maybe WinMX\n"); ++#endif ++ if (get_u32(payload,17) == 0 && get_u32(payload,21) == 0 && get_u32(payload,25) == 0 && ++// get_u32(payload,33) == __constant_htonl(0x71182b1a) && get_u32(payload,37) == __constant_htonl(0x05050000) && ++// get_u32(payload,133) == __constant_htonl(0x31097edf) && get_u32(payload,145) == __constant_htonl(0xdcb8f792)) ++ get_u16(payload,39) == 0 && get_u16(payload,135) == __constant_htons(0x7edf) && get_u16(payload,147) == __constant_htons(0xf792)) ++ ++ { ++#ifdef IPP2P_DEBUG_WINMX ++ printk(KERN_INFO "got WinMX\n"); ++#endif ++ return ((IPP2P_WINMX * 100) + 4); ++ } ++ } ++ return 0; ++} /*search_winmx*/ ++ ++ ++/*Search for appleJuice commands*/ ++int ++search_apple (const unsigned char *payload, const u16 plen) ++{ ++ if ( (plen > 7) && (payload[6] == 0x0d) && (payload[7] == 0x0a) && (memcmp(payload, "ajprot", 6) == 0)) return (IPP2P_APPLE * 100); ++ ++ return 0; ++} ++ ++ ++/*Search for BitTorrent commands*/ ++int ++search_bittorrent (const unsigned char *payload, const u16 plen) ++{ ++ if (plen > 20) ++ { ++ /* test for match 0x13+"BitTorrent protocol" */ ++ if (payload[0] == 0x13) ++ { ++ if (memcmp(payload+1, "BitTorrent protocol", 19) == 0) return (IPP2P_BIT * 100); ++ } ++ ++ /* get tracker commandos, all starts with GET / ++ * then it can follow: scrape| announce ++ * and then ?hash_info= ++ */ ++ if (memcmp(payload,"GET /",5) == 0) ++ { ++ /* message scrape */ ++ if ( memcmp(payload+5,"scrape?info_hash=",17)==0 ) return (IPP2P_BIT * 100 + 1); ++ /* message announce */ ++ if ( memcmp(payload+5,"announce?info_hash=",19)==0 ) return (IPP2P_BIT * 100 + 2); ++ } ++ } ++ else ++ { ++ /* bitcomet encryptes the first packet, so we have to detect another ++ * one later in the flow */ ++ /* first try failed, too many missdetections */ ++ //if ( size == 5 && get_u32(t,0) == __constant_htonl(1) && t[4] < 3) return (IPP2P_BIT * 100 + 3); ++ ++ /* second try: block request packets */ ++ if ( plen == 17 && get_u32(payload,0) == __constant_htonl(0x0d) && payload[4] == 0x06 && get_u32(payload,13) == __constant_htonl(0x4000) ) return (IPP2P_BIT * 100 + 3); ++ } ++ ++ return 0; ++} ++ ++ ++ ++/*check for Kazaa get command*/ ++int ++search_kazaa (const unsigned char *payload, const u16 plen) ++ ++{ ++ if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a) && memcmp(payload, "GET /.hash=", 11) == 0) ++ return (IPP2P_DATA_KAZAA * 100); ++ ++ return 0; ++} ++ ++ ++/*check for gnutella get command*/ ++int ++search_gnu (const unsigned char *payload, const u16 plen) ++{ ++ if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a)) ++ { ++ if (memcmp(payload, "GET /get/", 9) == 0) return ((IPP2P_DATA_GNU * 100) + 1); ++ if (memcmp(payload, "GET /uri-res/", 13) == 0) return ((IPP2P_DATA_GNU * 100) + 2); ++ } ++ return 0; ++} ++ ++ ++/*check for gnutella get commands and other typical data*/ ++int ++search_all_gnu (const unsigned char *payload, const u16 plen) ++{ ++ ++ if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a)) ++ { ++ ++ if (memcmp(payload, "GNUTELLA CONNECT/", 17) == 0) return ((IPP2P_GNU * 100) + 1); ++ if (memcmp(payload, "GNUTELLA/", 9) == 0) return ((IPP2P_GNU * 100) + 2); ++ ++ ++ if ((memcmp(payload, "GET /get/", 9) == 0) || (memcmp(payload, "GET /uri-res/", 13) == 0)) ++ { ++ u16 c=8; ++ const u16 end=plen-22; ++ while (c < end) { ++ if ( payload[c] == 0x0a && payload[c+1] == 0x0d && ((memcmp(&payload[c+2], "X-Gnutella-", 11) == 0) || (memcmp(&payload[c+2], "X-Queue:", 8) == 0))) ++ return ((IPP2P_GNU * 100) + 3); ++ c++; ++ } ++ } ++ } ++ return 0; ++} ++ ++ ++/*check for KaZaA download commands and other typical data*/ ++int ++search_all_kazaa (const unsigned char *payload, const u16 plen) ++{ ++ if ((payload[plen-2] == 0x0d) && (payload[plen-1] == 0x0a)) ++ { ++ ++ if (memcmp(payload, "GIVE ", 5) == 0) return ((IPP2P_KAZAA * 100) + 1); ++ ++ if (memcmp(payload, "GET /", 5) == 0) { ++ u16 c = 8; ++ const u16 end=plen-22; ++ while (c < end) { ++ if ( payload[c] == 0x0a && payload[c+1] == 0x0d && ((memcmp(&payload[c+2], "X-Kazaa-Username: ", 18) == 0) || (memcmp(&payload[c+2], "User-Agent: PeerEnabler/", 24) == 0))) ++ return ((IPP2P_KAZAA * 100) + 2); ++ c++; ++ } ++ } ++ } ++ return 0; ++} ++ ++/*fast check for edonkey file segment transfer command*/ ++int ++search_edk (const unsigned char *payload, const u16 plen) ++{ ++ if (payload[0] != 0xe3) ++ return 0; ++ else { ++ if (payload[5] == 0x47) ++ return (IPP2P_DATA_EDK * 100); ++ else ++ return 0; ++ } ++} ++ ++ ++ ++/*intensive but slower search for some edonkey packets including size-check*/ ++int ++search_all_edk (const unsigned char *payload, const u16 plen) ++{ ++ if (payload[0] != 0xe3) ++ return 0; ++ else { ++ //t += head_len; ++ const u16 cmd = get_u16(payload, 1); ++ if (cmd == (plen - 5)) { ++ switch (payload[5]) { ++ case 0x01: return ((IPP2P_EDK * 100) + 1); /*Client: hello or Server:hello*/ ++ case 0x4c: return ((IPP2P_EDK * 100) + 9); /*Client: Hello-Answer*/ ++ } ++ } ++ return 0; ++ } ++} ++ ++ ++/*fast check for Direct Connect send command*/ ++int ++search_dc (const unsigned char *payload, const u16 plen) ++{ ++ ++ if (payload[0] != 0x24 ) ++ return 0; ++ else { ++ if (memcmp(&payload[1], "Send|", 5) == 0) ++ return (IPP2P_DATA_DC * 100); ++ else ++ return 0; ++ } ++ ++} ++ ++ ++/*intensive but slower check for all direct connect packets*/ ++int ++search_all_dc (const unsigned char *payload, const u16 plen) ++{ ++// unsigned char *t = haystack; ++ ++ if (payload[0] == 0x24 && payload[plen-1] == 0x7c) ++ { ++ const unsigned char *t=&payload[1]; ++ /* Client-Hub-Protocol */ ++ if (memcmp(t, "Lock ", 5) == 0) return ((IPP2P_DC * 100) + 1); ++ /* Client-Client-Protocol, some are already recognized by client-hub (like lock) */ ++ if (memcmp(t, "MyNick ", 7) == 0) return ((IPP2P_DC * 100) + 38); ++ } ++ return 0; ++} ++ ++/*check for mute*/ ++int ++search_mute (const unsigned char *payload, const u16 plen) ++{ ++ if ( plen == 209 || plen == 345 || plen == 473 || plen == 609 || plen == 1121 ) ++ { ++ //printk(KERN_DEBUG "size hit: %u",size); ++ if (memcmp(payload,"PublicKey: ",11) == 0 ) ++ { ++ return ((IPP2P_MUTE * 100) + 0); ++ ++/* if (memcmp(t+size-14,"\x0aEndPublicKey\x0a",14) == 0) ++ { ++ printk(KERN_DEBUG "end pubic key hit: %u",size); ++ ++ }*/ ++ } ++ } ++ return 0; ++} ++ ++ ++/* check for xdcc */ ++int ++search_xdcc (const unsigned char *payload, const u16 plen) ++{ ++ /* search in small packets only */ ++ if (plen > 20 && plen < 200 && payload[plen-1] == 0x0a && payload[plen-2] == 0x0d && memcmp(payload,"PRIVMSG ",8) == 0) ++ { ++ ++ u16 x=10; ++ const u16 end=plen - 13; ++ ++ /* is seems to be a irc private massage, chedck for xdcc command */ ++ while (x < end) ++ { ++ if (payload[x] == ':') ++ { ++ if ( memcmp(&payload[x+1],"xdcc send #",11) == 0 ) ++ return ((IPP2P_XDCC * 100) + 0); ++ } ++ x++; ++ } ++ } ++ return 0; ++} ++ ++/* search for waste */ ++int search_waste(const unsigned char *payload, const u16 plen) ++{ ++ if ( plen >= 8 && memcmp(payload,"GET.sha1:",9) == 0) ++ return ((IPP2P_WASTE * 100) + 0); ++ ++ return 0; ++} ++ ++ ++static struct { ++ int command; ++ __u8 short_hand; /*for fucntions included in short hands*/ ++ int packet_len; ++ int (*function_name) (const unsigned char *, const u16); ++} matchlist[] = { ++ {IPP2P_EDK,SHORT_HAND_IPP2P,20, &search_all_edk}, ++// {IPP2P_DATA_KAZAA,SHORT_HAND_DATA,200, &search_kazaa}, ++// {IPP2P_DATA_EDK,SHORT_HAND_DATA,60, &search_edk}, ++// {IPP2P_DATA_DC,SHORT_HAND_DATA,26, &search_dc}, ++ {IPP2P_DC,SHORT_HAND_IPP2P,5, search_all_dc}, ++// {IPP2P_DATA_GNU,SHORT_HAND_DATA,40, &search_gnu}, ++ {IPP2P_GNU,SHORT_HAND_IPP2P,5, &search_all_gnu}, ++ {IPP2P_KAZAA,SHORT_HAND_IPP2P,5, &search_all_kazaa}, ++ {IPP2P_BIT,SHORT_HAND_IPP2P,20, &search_bittorrent}, ++ {IPP2P_APPLE,SHORT_HAND_IPP2P,5, &search_apple}, ++ {IPP2P_SOUL,SHORT_HAND_IPP2P,5, &search_soul}, ++ {IPP2P_WINMX,SHORT_HAND_IPP2P,2, &search_winmx}, ++ {IPP2P_ARES,SHORT_HAND_IPP2P,5, &search_ares}, ++ {IPP2P_MUTE,SHORT_HAND_NONE,200, &search_mute}, ++ {IPP2P_WASTE,SHORT_HAND_NONE,5, &search_waste}, ++ {IPP2P_XDCC,SHORT_HAND_NONE,5, &search_xdcc}, ++ {0,0,0,NULL} ++}; ++ ++ ++static struct { ++ int command; ++ __u8 short_hand; /*for fucntions included in short hands*/ ++ int packet_len; ++ int (*function_name) (unsigned char *, int); ++} udp_list[] = { ++ {IPP2P_KAZAA,SHORT_HAND_IPP2P,14, &udp_search_kazaa}, ++ {IPP2P_BIT,SHORT_HAND_IPP2P,23, &udp_search_bit}, ++ {IPP2P_GNU,SHORT_HAND_IPP2P,11, &udp_search_gnu}, ++ {IPP2P_EDK,SHORT_HAND_IPP2P,9, &udp_search_edk}, ++ {IPP2P_DC,SHORT_HAND_IPP2P,12, &udp_search_directconnect}, ++ {0,0,0,NULL} ++}; ++ ++ ++static int ++match(const struct sk_buff *skb, ++ const struct net_device *in, ++ const struct net_device *out, ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18) ++ const struct xt_match *match, ++#endif ++ const void *matchinfo, ++ int offset, ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18) ++ unsigned int protoff, ++#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) ++ const void *hdr, ++ u_int16_t datalen, ++#endif ++ int *hotdrop) ++{ ++ const struct ipt_p2p_info *info = matchinfo; ++ unsigned char *haystack; ++ struct iphdr *ip = skb->nh.iph; ++ int p2p_result = 0, i = 0; ++// int head_len; ++ int hlen = ntohs(ip->tot_len)-(ip->ihl*4); /*hlen = packet-data length*/ ++ ++ /*must not be a fragment*/ ++ if (offset) { ++ if (info->debug) printk("IPP2P.match: offset found %i \n",offset); ++ return 0; ++ } ++ ++ /*make sure that skb is linear*/ ++ if(skb_is_nonlinear(skb)){ ++ if (info->debug) printk("IPP2P.match: nonlinear skb found\n"); ++ return 0; ++ } ++ ++ ++ haystack=(char *)ip+(ip->ihl*4); /*haystack = packet data*/ ++ ++ switch (ip->protocol){ ++ case IPPROTO_TCP: /*what to do with a TCP packet*/ ++ { ++ struct tcphdr *tcph = (void *) ip + ip->ihl * 4; ++ ++ if (tcph->fin) return 0; /*if FIN bit is set bail out*/ ++ if (tcph->syn) return 0; /*if SYN bit is set bail out*/ ++ if (tcph->rst) return 0; /*if RST bit is set bail out*/ ++ ++ haystack += tcph->doff * 4; /*get TCP-Header-Size*/ ++ hlen -= tcph->doff * 4; ++ while (matchlist[i].command) { ++ if ((((info->cmd & matchlist[i].command) == matchlist[i].command) || ++ ((info->cmd & matchlist[i].short_hand) == matchlist[i].short_hand)) && ++ (hlen > matchlist[i].packet_len)) { ++ p2p_result = matchlist[i].function_name(haystack, hlen); ++ if (p2p_result) ++ { ++ if (info->debug) printk("IPP2P.debug:TCP-match: %i from: %u.%u.%u.%u:%i to: %u.%u.%u.%u:%i Length: %i\n", ++ p2p_result, NIPQUAD(ip->saddr),ntohs(tcph->source), NIPQUAD(ip->daddr),ntohs(tcph->dest),hlen); ++ return p2p_result; ++ } ++ } ++ i++; ++ } ++ return p2p_result; ++ } ++ ++ case IPPROTO_UDP: /*what to do with an UDP packet*/ ++ { ++ struct udphdr *udph = (void *) ip + ip->ihl * 4; ++ ++ while (udp_list[i].command){ ++ if ((((info->cmd & udp_list[i].command) == udp_list[i].command) || ++ ((info->cmd & udp_list[i].short_hand) == udp_list[i].short_hand)) && ++ (hlen > udp_list[i].packet_len)) { ++ p2p_result = udp_list[i].function_name(haystack, hlen); ++ if (p2p_result){ ++ if (info->debug) printk("IPP2P.debug:UDP-match: %i from: %u.%u.%u.%u:%i to: %u.%u.%u.%u:%i Length: %i\n", ++ p2p_result, NIPQUAD(ip->saddr),ntohs(udph->source), NIPQUAD(ip->daddr),ntohs(udph->dest),hlen); ++ return p2p_result; ++ } ++ } ++ i++; ++ } ++ return p2p_result; ++ } ++ ++ default: return 0; ++ } ++} ++ ++ ++ ++static int ++checkentry(const char *tablename, ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18) ++ const void *ip, ++ const struct xt_match *match, ++#else ++ const struct ipt_ip *ip, ++#endif ++ void *matchinfo, ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) ++ unsigned int matchsize, ++#endif ++ unsigned int hook_mask) ++{ ++ /* Must specify -p tcp */ ++/* if (ip->proto != IPPROTO_TCP || (ip->invflags & IPT_INV_PROTO)) { ++ * printk("ipp2p: Only works on TCP packets, use -p tcp\n"); ++ * return 0; ++ * }*/ ++ return 1; ++} ++ ++ ++ ++ ++static struct ipt_match ipp2p_match = { ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) ++ { NULL, NULL }, ++ "ipp2p", ++ &match, ++ &checkentry, ++ NULL, ++ THIS_MODULE ++#endif ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) ++ .name = "ipp2p", ++ .match = &match, ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18) ++ .matchsize = sizeof(struct ipt_p2p_info), ++#endif ++ .checkentry = &checkentry, ++ .me = THIS_MODULE, ++#endif ++}; ++ ++ ++static int __init init(void) ++{ ++ printk(KERN_INFO "IPP2P v%s loading\n", IPP2P_VERSION); ++ return ipt_register_match(&ipp2p_match); ++} ++ ++static void __exit fini(void) ++{ ++ ipt_unregister_match(&ipp2p_match); ++ printk(KERN_INFO "IPP2P v%s unloaded\n", IPP2P_VERSION); ++} ++ ++module_init(init); ++module_exit(fini); ++ ++ +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig +--- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:39.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:39.000000000 +0100 +@@ -248,6 +248,12 @@ + + To compile it as a module, choose M here. If unsure, say N. + ++config IP_NF_MATCH_IPP2P ++ tristate "IPP2P" ++ depends on IP_NF_IPTABLES ++ help ++ Module for matching traffic of various Peer-to-Peer applications ++ + config IP_NF_MATCH_TOS + tristate "TOS match support" + depends on IP_NF_IPTABLES +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile +--- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:39.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:39.000000000 +0100 +@@ -62,7 +62,7 @@ + obj-$(CONFIG_IP_NF_MATCH_AH) += ipt_ah.o + obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o + obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ipt_addrtype.o +- ++obj-$(CONFIG_IP_NF_MATCH_IPP2P) += ipt_ipp2p.o + obj-$(CONFIG_IP_NF_MATCH_LAYER7) += ipt_layer7.o + + # targets diff --git a/target/linux/generic-2.6/patches/120-openswan-2.4.0.kernel-2.6-natt.patch b/target/linux/generic-2.6/patches/120-openswan-2.4.0.kernel-2.6-natt.patch new file mode 100644 index 0000000000..2b4238c688 --- /dev/null +++ b/target/linux/generic-2.6/patches/120-openswan-2.4.0.kernel-2.6-natt.patch @@ -0,0 +1,171 @@ +diff -urN linux-2.6.19.old/include/net/xfrmudp.h linux-2.6.19.dev/include/net/xfrmudp.h +--- linux-2.6.19.old/include/net/xfrmudp.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/net/xfrmudp.h 2006-12-14 03:13:41.000000000 +0100 +@@ -0,0 +1,10 @@ ++/* ++ * pointer to function for type that xfrm4_input wants, to permit ++ * decoupling of XFRM from udp.c ++ */ ++#define HAVE_XFRM4_UDP_REGISTER ++ ++typedef int (*xfrm4_rcv_encap_t)(struct sk_buff *skb, __u16 encap_type); ++extern int udp4_register_esp_rcvencap(xfrm4_rcv_encap_t func ++ , xfrm4_rcv_encap_t *oldfunc); ++extern int udp4_unregister_esp_rcvencap(xfrm4_rcv_encap_t func); +diff -urN linux-2.6.19.old/net/ipv4/Kconfig linux-2.6.19.dev/net/ipv4/Kconfig +--- linux-2.6.19.old/net/ipv4/Kconfig 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/Kconfig 2006-12-14 03:13:41.000000000 +0100 +@@ -273,6 +273,12 @@ + Network), but can be distributed all over the Internet. If you want + to do that, say Y here and to "IP multicast routing" below. + ++config IPSEC_NAT_TRAVERSAL ++ bool "IPSEC NAT-Traversal (KLIPS compatible)" ++ depends on INET ++ ---help--- ++ Includes support for RFC3947/RFC3948 NAT-Traversal of ESP over UDP. ++ + config IP_MROUTE + bool "IP: multicast routing" + depends on IP_MULTICAST +diff -urN linux-2.6.19.old/net/ipv4/udp.c linux-2.6.19.dev/net/ipv4/udp.c +--- linux-2.6.19.old/net/ipv4/udp.c 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/udp.c 2006-12-14 03:13:41.000000000 +0100 +@@ -108,11 +108,14 @@ + #include + #include + #include ++#include + + /* + * Snmp MIB for the UDP layer + */ + ++static xfrm4_rcv_encap_t xfrm4_rcv_encap_func; ++ + DEFINE_SNMP_STAT(struct udp_mib, udp_statistics) __read_mostly; + + struct hlist_head udp_hash[UDP_HTABLE_SIZE]; +@@ -917,6 +920,42 @@ + sk_common_release(sk); + } + ++#if defined(CONFIG_XFRM) || defined(CONFIG_IPSEC_NAT_TRAVERSAL) ++ ++/* if XFRM isn't a module, then register it directly. */ ++#if 0 && !defined(CONFIG_XFRM_MODULE) && !defined(CONFIG_IPSEC_NAT_TRAVERSAL) ++static xfrm4_rcv_encap_t xfrm4_rcv_encap_func = xfrm4_rcv_encap; ++#else ++static xfrm4_rcv_encap_t xfrm4_rcv_encap_func = NULL; ++#endif ++ ++int udp4_register_esp_rcvencap(xfrm4_rcv_encap_t func ++ , xfrm4_rcv_encap_t *oldfunc) ++{ ++ if(oldfunc != NULL) { ++ *oldfunc = xfrm4_rcv_encap_func; ++ } ++ ++#if 0 ++ if(xfrm4_rcv_encap_func != NULL) ++ return -1; ++#endif ++ ++ xfrm4_rcv_encap_func = func; ++ return 0; ++} ++ ++int udp4_unregister_esp_rcvencap(xfrm4_rcv_encap_t func) ++{ ++ if(xfrm4_rcv_encap_func != func) ++ return -1; ++ ++ xfrm4_rcv_encap_func = NULL; ++ return 0; ++} ++#endif /* CONFIG_XFRM_MODULE || CONFIG_IPSEC_NAT_TRAVERSAL */ ++ ++ + /* return: + * 1 if the the UDP system should process it + * 0 if we should drop this packet +@@ -924,9 +963,9 @@ + */ + static int udp_encap_rcv(struct sock * sk, struct sk_buff *skb) + { +-#ifndef CONFIG_XFRM ++#if !defined(CONFIG_XFRM) && !defined(CONFIG_IPSEC_NAT_TRAVERSAL) + return 1; +-#else ++#else /* either CONFIG_XFRM or CONFIG_IPSEC_NAT_TRAVERSAL */ + struct udp_sock *up = udp_sk(sk); + struct udphdr *uh; + struct iphdr *iph; +@@ -939,11 +978,11 @@ + /* if we're overly short, let UDP handle it */ + len = skb->len - sizeof(struct udphdr); + if (len <= 0) +- return 1; ++ return 2; + + /* if this is not encapsulated socket, then just return now */ + if (!encap_type) +- return 1; ++ return 3; + + /* If this is a paged skb, make sure we pull up + * whatever data we need to look at. */ +@@ -966,7 +1005,7 @@ + len = sizeof(struct udphdr); + } else + /* Must be an IKE packet.. pass it through */ +- return 1; ++ return 4; + break; + case UDP_ENCAP_ESPINUDP_NON_IKE: + /* Check if this is a keepalive packet. If so, eat it. */ +@@ -979,7 +1018,7 @@ + len = sizeof(struct udphdr) + 2 * sizeof(u32); + } else + /* Must be an IKE packet.. pass it through */ +- return 1; ++ return 5; + break; + } + +@@ -990,6 +1029,8 @@ + */ + if (skb_cloned(skb) && pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) + return 0; ++ if (skb_cloned(skb) && pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) ++ return 0; + + /* Now we can update and verify the packet length... */ + iph = skb->nh.iph; +@@ -1055,9 +1096,13 @@ + return 0; + } + if (ret < 0) { +- /* process the ESP packet */ +- ret = xfrm4_rcv_encap(skb, up->encap_type); +- UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS); ++ if(xfrm4_rcv_encap_func != NULL) { ++ ret = (*xfrm4_rcv_encap_func)(skb, up->encap_type); ++ UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS); ++ } else { ++ UDP_INC_STATS_BH(UDP_MIB_INERRORS); ++ ret = 1; ++ } + return -ret; + } + /* FALLTHROUGH -- it's a UDP Packet */ +@@ -1639,3 +1684,9 @@ + EXPORT_SYMBOL(udp_proc_register); + EXPORT_SYMBOL(udp_proc_unregister); + #endif ++ ++#if defined(CONFIG_IPSEC_NAT_TRAVERSAL) ++EXPORT_SYMBOL(udp4_register_esp_rcvencap); ++EXPORT_SYMBOL(udp4_unregister_esp_rcvencap); ++#endif ++ diff --git a/target/linux/generic-2.6/patches/130-netfilter-ipset.patch b/target/linux/generic-2.6/patches/130-netfilter-ipset.patch new file mode 100644 index 0000000000..8a35d8a6b4 --- /dev/null +++ b/target/linux/generic-2.6/patches/130-netfilter-ipset.patch @@ -0,0 +1,5851 @@ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,489 @@ ++#ifndef _IP_SET_H ++#define _IP_SET_H ++ ++/* Copyright (C) 2000-2002 Joakim Axelsson ++ * Patrick Schaaf ++ * Martin Josefsson ++ * Copyright (C) 2003-2004 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* ++ * A sockopt of such quality has hardly ever been seen before on the open ++ * market! This little beauty, hardly ever used: above 64, so it's ++ * traditionally used for firewalling, not touched (even once!) by the ++ * 2.0, 2.2 and 2.4 kernels! ++ * ++ * Comes with its own certificate of authenticity, valid anywhere in the ++ * Free world! ++ * ++ * Rusty, 19.4.2000 ++ */ ++#define SO_IP_SET 83 ++ ++/* ++ * Heavily modify by Joakim Axelsson 08.03.2002 ++ * - Made it more modulebased ++ * ++ * Additional heavy modifications by Jozsef Kadlecsik 22.02.2004 ++ * - bindings added ++ * - in order to "deal with" backward compatibility, renamed to ipset ++ */ ++ ++/* ++ * Used so that the kernel module and ipset-binary can match their versions ++ */ ++#define IP_SET_PROTOCOL_VERSION 2 ++ ++#define IP_SET_MAXNAMELEN 32 /* set names and set typenames */ ++ ++/* Lets work with our own typedef for representing an IP address. ++ * We hope to make the code more portable, possibly to IPv6... ++ * ++ * The representation works in HOST byte order, because most set types ++ * will perform arithmetic operations and compare operations. ++ * ++ * For now the type is an uint32_t. ++ * ++ * Make sure to ONLY use the functions when translating and parsing ++ * in order to keep the host byte order and make it more portable: ++ * parse_ip() ++ * parse_mask() ++ * parse_ipandmask() ++ * ip_tostring() ++ * (Joakim: where are they???) ++ */ ++ ++typedef uint32_t ip_set_ip_t; ++ ++/* Sets are identified by an id in kernel space. Tweak with ip_set_id_t ++ * and IP_SET_INVALID_ID if you want to increase the max number of sets. ++ */ ++typedef uint16_t ip_set_id_t; ++ ++#define IP_SET_INVALID_ID 65535 ++ ++/* How deep we follow bindings */ ++#define IP_SET_MAX_BINDINGS 6 ++ ++/* ++ * Option flags for kernel operations (ipt_set_info) ++ */ ++#define IPSET_SRC 0x01 /* Source match/add */ ++#define IPSET_DST 0x02 /* Destination match/add */ ++#define IPSET_MATCH_INV 0x04 /* Inverse matching */ ++ ++/* ++ * Set types (flavours) ++ */ ++#define IPSET_TYPE_IP 0 /* IP address type of set */ ++#define IPSET_TYPE_PORT 1 /* Port type of set */ ++ ++/* Reserved keywords */ ++#define IPSET_TOKEN_DEFAULT ":default:" ++#define IPSET_TOKEN_ALL ":all:" ++ ++/* SO_IP_SET operation constants, and their request struct types. ++ * ++ * Operation ids: ++ * 0-99: commands with version checking ++ * 100-199: add/del/test/bind/unbind ++ * 200-299: list, save, restore ++ */ ++ ++/* Single shot operations: ++ * version, create, destroy, flush, rename and swap ++ * ++ * Sets are identified by name. ++ */ ++ ++#define IP_SET_REQ_STD \ ++ unsigned op; \ ++ unsigned version; \ ++ char name[IP_SET_MAXNAMELEN] ++ ++#define IP_SET_OP_CREATE 0x00000001 /* Create a new (empty) set */ ++struct ip_set_req_create { ++ IP_SET_REQ_STD; ++ char typename[IP_SET_MAXNAMELEN]; ++}; ++ ++#define IP_SET_OP_DESTROY 0x00000002 /* Remove a (empty) set */ ++struct ip_set_req_std { ++ IP_SET_REQ_STD; ++}; ++ ++#define IP_SET_OP_FLUSH 0x00000003 /* Remove all IPs in a set */ ++/* Uses ip_set_req_std */ ++ ++#define IP_SET_OP_RENAME 0x00000004 /* Rename a set */ ++/* Uses ip_set_req_create */ ++ ++#define IP_SET_OP_SWAP 0x00000005 /* Swap two sets */ ++/* Uses ip_set_req_create */ ++ ++union ip_set_name_index { ++ char name[IP_SET_MAXNAMELEN]; ++ ip_set_id_t index; ++}; ++ ++#define IP_SET_OP_GET_BYNAME 0x00000006 /* Get set index by name */ ++struct ip_set_req_get_set { ++ unsigned op; ++ unsigned version; ++ union ip_set_name_index set; ++}; ++ ++#define IP_SET_OP_GET_BYINDEX 0x00000007 /* Get set name by index */ ++/* Uses ip_set_req_get_set */ ++ ++#define IP_SET_OP_VERSION 0x00000100 /* Ask kernel version */ ++struct ip_set_req_version { ++ unsigned op; ++ unsigned version; ++}; ++ ++/* Double shots operations: ++ * add, del, test, bind and unbind. ++ * ++ * First we query the kernel to get the index and type of the target set, ++ * then issue the command. Validity of IP is checked in kernel in order ++ * to minimalize sockopt operations. ++ */ ++ ++/* Get minimal set data for add/del/test/bind/unbind IP */ ++#define IP_SET_OP_ADT_GET 0x00000010 /* Get set and type */ ++struct ip_set_req_adt_get { ++ unsigned op; ++ unsigned version; ++ union ip_set_name_index set; ++ char typename[IP_SET_MAXNAMELEN]; ++}; ++ ++#define IP_SET_REQ_BYINDEX \ ++ unsigned op; \ ++ ip_set_id_t index; ++ ++struct ip_set_req_adt { ++ IP_SET_REQ_BYINDEX; ++}; ++ ++#define IP_SET_OP_ADD_IP 0x00000101 /* Add an IP to a set */ ++/* Uses ip_set_req_adt, with type specific addage */ ++ ++#define IP_SET_OP_DEL_IP 0x00000102 /* Remove an IP from a set */ ++/* Uses ip_set_req_adt, with type specific addage */ ++ ++#define IP_SET_OP_TEST_IP 0x00000103 /* Test an IP in a set */ ++/* Uses ip_set_req_adt, with type specific addage */ ++ ++#define IP_SET_OP_BIND_SET 0x00000104 /* Bind an IP to a set */ ++/* Uses ip_set_req_bind, with type specific addage */ ++struct ip_set_req_bind { ++ IP_SET_REQ_BYINDEX; ++ char binding[IP_SET_MAXNAMELEN]; ++}; ++ ++#define IP_SET_OP_UNBIND_SET 0x00000105 /* Unbind an IP from a set */ ++/* Uses ip_set_req_bind, with type speficic addage ++ * index = 0 means unbinding for all sets */ ++ ++#define IP_SET_OP_TEST_BIND_SET 0x00000106 /* Test binding an IP to a set */ ++/* Uses ip_set_req_bind, with type specific addage */ ++ ++/* Multiple shots operations: list, save, restore. ++ * ++ * - check kernel version and query the max number of sets ++ * - get the basic information on all sets ++ * and size required for the next step ++ * - get actual set data: header, data, bindings ++ */ ++ ++/* Get max_sets and the index of a queried set ++ */ ++#define IP_SET_OP_MAX_SETS 0x00000020 ++struct ip_set_req_max_sets { ++ unsigned op; ++ unsigned version; ++ ip_set_id_t max_sets; /* max_sets */ ++ ip_set_id_t sets; /* real number of sets */ ++ union ip_set_name_index set; /* index of set if name used */ ++}; ++ ++/* Get the id and name of the sets plus size for next step */ ++#define IP_SET_OP_LIST_SIZE 0x00000201 ++#define IP_SET_OP_SAVE_SIZE 0x00000202 ++struct ip_set_req_setnames { ++ unsigned op; ++ ip_set_id_t index; /* set to list/save */ ++ size_t size; /* size to get setdata/bindings */ ++ /* followed by sets number of struct ip_set_name_list */ ++}; ++ ++struct ip_set_name_list { ++ char name[IP_SET_MAXNAMELEN]; ++ char typename[IP_SET_MAXNAMELEN]; ++ ip_set_id_t index; ++ ip_set_id_t id; ++}; ++ ++/* The actual list operation */ ++#define IP_SET_OP_LIST 0x00000203 ++struct ip_set_req_list { ++ IP_SET_REQ_BYINDEX; ++ /* sets number of struct ip_set_list in reply */ ++}; ++ ++struct ip_set_list { ++ ip_set_id_t index; ++ ip_set_id_t binding; ++ u_int32_t ref; ++ size_t header_size; /* Set header data of header_size */ ++ size_t members_size; /* Set members data of members_size */ ++ size_t bindings_size; /* Set bindings data of bindings_size */ ++}; ++ ++struct ip_set_hash_list { ++ ip_set_ip_t ip; ++ ip_set_id_t binding; ++}; ++ ++/* The save operation */ ++#define IP_SET_OP_SAVE 0x00000204 ++/* Uses ip_set_req_list, in the reply replaced by ++ * sets number of struct ip_set_save plus a marker ++ * ip_set_save followed by ip_set_hash_save structures. ++ */ ++struct ip_set_save { ++ ip_set_id_t index; ++ ip_set_id_t binding; ++ size_t header_size; /* Set header data of header_size */ ++ size_t members_size; /* Set members data of members_size */ ++}; ++ ++/* At restoring, ip == 0 means default binding for the given set: */ ++struct ip_set_hash_save { ++ ip_set_ip_t ip; ++ ip_set_id_t id; ++ ip_set_id_t binding; ++}; ++ ++/* The restore operation */ ++#define IP_SET_OP_RESTORE 0x00000205 ++/* Uses ip_set_req_setnames followed by ip_set_restore structures ++ * plus a marker ip_set_restore, followed by ip_set_hash_save ++ * structures. ++ */ ++struct ip_set_restore { ++ char name[IP_SET_MAXNAMELEN]; ++ char typename[IP_SET_MAXNAMELEN]; ++ ip_set_id_t index; ++ size_t header_size; /* Create data of header_size */ ++ size_t members_size; /* Set members data of members_size */ ++}; ++ ++static inline int bitmap_bytes(ip_set_ip_t a, ip_set_ip_t b) ++{ ++ return 4 * ((((b - a + 8) / 8) + 3) / 4); ++} ++ ++#ifdef __KERNEL__ ++ ++#define ip_set_printk(format, args...) \ ++ do { \ ++ printk("%s: %s: ", __FILE__, __FUNCTION__); \ ++ printk(format "\n" , ## args); \ ++ } while (0) ++ ++#if defined(IP_SET_DEBUG) ++#define DP(format, args...) \ ++ do { \ ++ printk("%s: %s (DBG): ", __FILE__, __FUNCTION__);\ ++ printk(format "\n" , ## args); \ ++ } while (0) ++#define IP_SET_ASSERT(x) \ ++ do { \ ++ if (!(x)) \ ++ printk("IP_SET_ASSERT: %s:%i(%s)\n", \ ++ __FILE__, __LINE__, __FUNCTION__); \ ++ } while (0) ++#else ++#define DP(format, args...) ++#define IP_SET_ASSERT(x) ++#endif ++ ++struct ip_set; ++ ++/* ++ * The ip_set_type definition - one per set type, e.g. "ipmap". ++ * ++ * Each individual set has a pointer, set->type, going to one ++ * of these structures. Function pointers inside the structure implement ++ * the real behaviour of the sets. ++ * ++ * If not mentioned differently, the implementation behind the function ++ * pointers of a set_type, is expected to return 0 if ok, and a negative ++ * errno (e.g. -EINVAL) on error. ++ */ ++struct ip_set_type { ++ struct list_head list; /* next in list of set types */ ++ ++ /* test for IP in set (kernel: iptables -m set src|dst) ++ * return 0 if not in set, 1 if in set. ++ */ ++ int (*testip_kernel) (struct ip_set *set, ++ const struct sk_buff * skb, ++ u_int32_t flags, ++ ip_set_ip_t *ip); ++ ++ /* test for IP in set (userspace: ipset -T set IP) ++ * return 0 if not in set, 1 if in set. ++ */ ++ int (*testip) (struct ip_set *set, ++ const void *data, size_t size, ++ ip_set_ip_t *ip); ++ ++ /* ++ * Size of the data structure passed by when ++ * adding/deletin/testing an entry. ++ */ ++ size_t reqsize; ++ ++ /* Add IP into set (userspace: ipset -A set IP) ++ * Return -EEXIST if the address is already in the set, ++ * and -ERANGE if the address lies outside the set bounds. ++ * If the address was not already in the set, 0 is returned. ++ */ ++ int (*addip) (struct ip_set *set, ++ const void *data, size_t size, ++ ip_set_ip_t *ip); ++ ++ /* Add IP into set (kernel: iptables ... -j SET set src|dst) ++ * Return -EEXIST if the address is already in the set, ++ * and -ERANGE if the address lies outside the set bounds. ++ * If the address was not already in the set, 0 is returned. ++ */ ++ int (*addip_kernel) (struct ip_set *set, ++ const struct sk_buff * skb, ++ u_int32_t flags, ++ ip_set_ip_t *ip); ++ ++ /* remove IP from set (userspace: ipset -D set --entry x) ++ * Return -EEXIST if the address is NOT in the set, ++ * and -ERANGE if the address lies outside the set bounds. ++ * If the address really was in the set, 0 is returned. ++ */ ++ int (*delip) (struct ip_set *set, ++ const void *data, size_t size, ++ ip_set_ip_t *ip); ++ ++ /* remove IP from set (kernel: iptables ... -j SET --entry x) ++ * Return -EEXIST if the address is NOT in the set, ++ * and -ERANGE if the address lies outside the set bounds. ++ * If the address really was in the set, 0 is returned. ++ */ ++ int (*delip_kernel) (struct ip_set *set, ++ const struct sk_buff * skb, ++ u_int32_t flags, ++ ip_set_ip_t *ip); ++ ++ /* new set creation - allocated type specific items ++ */ ++ int (*create) (struct ip_set *set, ++ const void *data, size_t size); ++ ++ /* retry the operation after successfully tweaking the set ++ */ ++ int (*retry) (struct ip_set *set); ++ ++ /* set destruction - free type specific items ++ * There is no return value. ++ * Can be called only when child sets are destroyed. ++ */ ++ void (*destroy) (struct ip_set *set); ++ ++ /* set flushing - reset all bits in the set, or something similar. ++ * There is no return value. ++ */ ++ void (*flush) (struct ip_set *set); ++ ++ /* Listing: size needed for header ++ */ ++ size_t header_size; ++ ++ /* Listing: Get the header ++ * ++ * Fill in the information in "data". ++ * This function is always run after list_header_size() under a ++ * writelock on the set. Therefor is the length of "data" always ++ * correct. ++ */ ++ void (*list_header) (const struct ip_set *set, ++ void *data); ++ ++ /* Listing: Get the size for the set members ++ */ ++ int (*list_members_size) (const struct ip_set *set); ++ ++ /* Listing: Get the set members ++ * ++ * Fill in the information in "data". ++ * This function is always run after list_member_size() under a ++ * writelock on the set. Therefor is the length of "data" always ++ * correct. ++ */ ++ void (*list_members) (const struct ip_set *set, ++ void *data); ++ ++ char typename[IP_SET_MAXNAMELEN]; ++ char typecode; ++ int protocol_version; ++ ++ /* Set this to THIS_MODULE if you are a module, otherwise NULL */ ++ struct module *me; ++}; ++ ++extern int ip_set_register_set_type(struct ip_set_type *set_type); ++extern void ip_set_unregister_set_type(struct ip_set_type *set_type); ++ ++/* A generic ipset */ ++struct ip_set { ++ char name[IP_SET_MAXNAMELEN]; /* the name of the set */ ++ rwlock_t lock; /* lock for concurrency control */ ++ ip_set_id_t id; /* set id for swapping */ ++ ip_set_id_t binding; /* default binding for the set */ ++ atomic_t ref; /* in kernel and in hash references */ ++ struct ip_set_type *type; /* the set types */ ++ void *data; /* pooltype specific data */ ++}; ++ ++/* Structure to bind set elements to sets */ ++struct ip_set_hash { ++ struct list_head list; /* list of clashing entries in hash */ ++ ip_set_ip_t ip; /* ip from set */ ++ ip_set_id_t id; /* set id */ ++ ip_set_id_t binding; /* set we bind the element to */ ++}; ++ ++/* register and unregister set references */ ++extern ip_set_id_t ip_set_get_byname(const char name[IP_SET_MAXNAMELEN]); ++extern ip_set_id_t ip_set_get_byindex(ip_set_id_t id); ++extern void ip_set_put(ip_set_id_t id); ++ ++/* API for iptables set match, and SET target */ ++extern void ip_set_addip_kernel(ip_set_id_t id, ++ const struct sk_buff *skb, ++ const u_int32_t *flags); ++extern void ip_set_delip_kernel(ip_set_id_t id, ++ const struct sk_buff *skb, ++ const u_int32_t *flags); ++extern int ip_set_testip_kernel(ip_set_id_t id, ++ const struct sk_buff *skb, ++ const u_int32_t *flags); ++ ++#endif /* __KERNEL__ */ ++ ++#endif /*_IP_SET_H*/ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_iphash.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_iphash.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_iphash.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_iphash.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,30 @@ ++#ifndef __IP_SET_IPHASH_H ++#define __IP_SET_IPHASH_H ++ ++#include ++ ++#define SETTYPE_NAME "iphash" ++#define MAX_RANGE 0x0000FFFF ++ ++struct ip_set_iphash { ++ ip_set_ip_t *members; /* the iphash proper */ ++ uint32_t initval; /* initval for jhash_1word */ ++ uint32_t prime; /* prime for double hashing */ ++ uint32_t hashsize; /* hash size */ ++ uint16_t probes; /* max number of probes */ ++ uint16_t resize; /* resize factor in percent */ ++ ip_set_ip_t netmask; /* netmask */ ++}; ++ ++struct ip_set_req_iphash_create { ++ uint32_t hashsize; ++ uint16_t probes; ++ uint16_t resize; ++ ip_set_ip_t netmask; ++}; ++ ++struct ip_set_req_iphash { ++ ip_set_ip_t ip; ++}; ++ ++#endif /* __IP_SET_IPHASH_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_ipmap.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_ipmap.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_ipmap.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_ipmap.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,56 @@ ++#ifndef __IP_SET_IPMAP_H ++#define __IP_SET_IPMAP_H ++ ++#include ++ ++#define SETTYPE_NAME "ipmap" ++#define MAX_RANGE 0x0000FFFF ++ ++struct ip_set_ipmap { ++ void *members; /* the ipmap proper */ ++ ip_set_ip_t first_ip; /* host byte order, included in range */ ++ ip_set_ip_t last_ip; /* host byte order, included in range */ ++ ip_set_ip_t netmask; /* subnet netmask */ ++ ip_set_ip_t sizeid; /* size of set in IPs */ ++ u_int16_t hosts; /* number of hosts in a subnet */ ++}; ++ ++struct ip_set_req_ipmap_create { ++ ip_set_ip_t from; ++ ip_set_ip_t to; ++ ip_set_ip_t netmask; ++}; ++ ++struct ip_set_req_ipmap { ++ ip_set_ip_t ip; ++}; ++ ++unsigned int ++mask_to_bits(ip_set_ip_t mask) ++{ ++ unsigned int bits = 32; ++ ip_set_ip_t maskaddr; ++ ++ if (mask == 0xFFFFFFFF) ++ return bits; ++ ++ maskaddr = 0xFFFFFFFE; ++ while (--bits >= 0 && maskaddr != mask) ++ maskaddr <<= 1; ++ ++ return bits; ++} ++ ++ip_set_ip_t ++range_to_mask(ip_set_ip_t from, ip_set_ip_t to, unsigned int *bits) ++{ ++ ip_set_ip_t mask = 0xFFFFFFFE; ++ ++ *bits = 32; ++ while (--(*bits) >= 0 && mask && (to & mask) != from) ++ mask <<= 1; ++ ++ return mask; ++} ++ ++#endif /* __IP_SET_IPMAP_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_iptree.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_iptree.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_iptree.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_iptree.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,39 @@ ++#ifndef __IP_SET_IPTREE_H ++#define __IP_SET_IPTREE_H ++ ++#include ++ ++#define SETTYPE_NAME "iptree" ++#define MAX_RANGE 0x0000FFFF ++ ++struct ip_set_iptreed { ++ unsigned long expires[255]; /* x.x.x.ADDR */ ++}; ++ ++struct ip_set_iptreec { ++ struct ip_set_iptreed *tree[255]; /* x.x.ADDR.* */ ++}; ++ ++struct ip_set_iptreeb { ++ struct ip_set_iptreec *tree[255]; /* x.ADDR.*.* */ ++}; ++ ++struct ip_set_iptree { ++ unsigned int timeout; ++ unsigned int gc_interval; ++#ifdef __KERNEL__ ++ struct timer_list gc; ++ struct ip_set_iptreeb *tree[255]; /* ADDR.*.*.* */ ++#endif ++}; ++ ++struct ip_set_req_iptree_create { ++ unsigned int timeout; ++}; ++ ++struct ip_set_req_iptree { ++ ip_set_ip_t ip; ++ unsigned int timeout; ++}; ++ ++#endif /* __IP_SET_IPTREE_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_jhash.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_jhash.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_jhash.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_jhash.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,148 @@ ++#ifndef _LINUX_IPSET_JHASH_H ++#define _LINUX_IPSET_JHASH_H ++ ++/* This is a copy of linux/jhash.h but the types u32/u8 are changed ++ * to __u32/__u8 so that the header file can be included into ++ * userspace code as well. Jozsef Kadlecsik (kadlec@blackhole.kfki.hu) ++ */ ++ ++/* jhash.h: Jenkins hash support. ++ * ++ * Copyright (C) 1996 Bob Jenkins (bob_jenkins@burtleburtle.net) ++ * ++ * http://burtleburtle.net/bob/hash/ ++ * ++ * These are the credits from Bob's sources: ++ * ++ * lookup2.c, by Bob Jenkins, December 1996, Public Domain. ++ * hash(), hash2(), hash3, and mix() are externally useful functions. ++ * Routines to test the hash are included if SELF_TEST is defined. ++ * You can use this free for any purpose. It has no warranty. ++ * ++ * Copyright (C) 2003 David S. Miller (davem@redhat.com) ++ * ++ * I've modified Bob's hash to be useful in the Linux kernel, and ++ * any bugs present are surely my fault. -DaveM ++ */ ++ ++/* NOTE: Arguments are modified. */ ++#define __jhash_mix(a, b, c) \ ++{ \ ++ a -= b; a -= c; a ^= (c>>13); \ ++ b -= c; b -= a; b ^= (a<<8); \ ++ c -= a; c -= b; c ^= (b>>13); \ ++ a -= b; a -= c; a ^= (c>>12); \ ++ b -= c; b -= a; b ^= (a<<16); \ ++ c -= a; c -= b; c ^= (b>>5); \ ++ a -= b; a -= c; a ^= (c>>3); \ ++ b -= c; b -= a; b ^= (a<<10); \ ++ c -= a; c -= b; c ^= (b>>15); \ ++} ++ ++/* The golden ration: an arbitrary value */ ++#define JHASH_GOLDEN_RATIO 0x9e3779b9 ++ ++/* The most generic version, hashes an arbitrary sequence ++ * of bytes. No alignment or length assumptions are made about ++ * the input key. ++ */ ++static inline __u32 jhash(void *key, __u32 length, __u32 initval) ++{ ++ __u32 a, b, c, len; ++ __u8 *k = key; ++ ++ len = length; ++ a = b = JHASH_GOLDEN_RATIO; ++ c = initval; ++ ++ while (len >= 12) { ++ a += (k[0] +((__u32)k[1]<<8) +((__u32)k[2]<<16) +((__u32)k[3]<<24)); ++ b += (k[4] +((__u32)k[5]<<8) +((__u32)k[6]<<16) +((__u32)k[7]<<24)); ++ c += (k[8] +((__u32)k[9]<<8) +((__u32)k[10]<<16)+((__u32)k[11]<<24)); ++ ++ __jhash_mix(a,b,c); ++ ++ k += 12; ++ len -= 12; ++ } ++ ++ c += length; ++ switch (len) { ++ case 11: c += ((__u32)k[10]<<24); ++ case 10: c += ((__u32)k[9]<<16); ++ case 9 : c += ((__u32)k[8]<<8); ++ case 8 : b += ((__u32)k[7]<<24); ++ case 7 : b += ((__u32)k[6]<<16); ++ case 6 : b += ((__u32)k[5]<<8); ++ case 5 : b += k[4]; ++ case 4 : a += ((__u32)k[3]<<24); ++ case 3 : a += ((__u32)k[2]<<16); ++ case 2 : a += ((__u32)k[1]<<8); ++ case 1 : a += k[0]; ++ }; ++ ++ __jhash_mix(a,b,c); ++ ++ return c; ++} ++ ++/* A special optimized version that handles 1 or more of __u32s. ++ * The length parameter here is the number of __u32s in the key. ++ */ ++static inline __u32 jhash2(__u32 *k, __u32 length, __u32 initval) ++{ ++ __u32 a, b, c, len; ++ ++ a = b = JHASH_GOLDEN_RATIO; ++ c = initval; ++ len = length; ++ ++ while (len >= 3) { ++ a += k[0]; ++ b += k[1]; ++ c += k[2]; ++ __jhash_mix(a, b, c); ++ k += 3; len -= 3; ++ } ++ ++ c += length * 4; ++ ++ switch (len) { ++ case 2 : b += k[1]; ++ case 1 : a += k[0]; ++ }; ++ ++ __jhash_mix(a,b,c); ++ ++ return c; ++} ++ ++ ++/* A special ultra-optimized versions that knows they are hashing exactly ++ * 3, 2 or 1 word(s). ++ * ++ * NOTE: In partilar the "c += length; __jhash_mix(a,b,c);" normally ++ * done at the end is not done here. ++ */ ++static inline __u32 jhash_3words(__u32 a, __u32 b, __u32 c, __u32 initval) ++{ ++ a += JHASH_GOLDEN_RATIO; ++ b += JHASH_GOLDEN_RATIO; ++ c += initval; ++ ++ __jhash_mix(a, b, c); ++ ++ return c; ++} ++ ++static inline __u32 jhash_2words(__u32 a, __u32 b, __u32 initval) ++{ ++ return jhash_3words(a, b, 0, initval); ++} ++ ++static inline __u32 jhash_1word(__u32 a, __u32 initval) ++{ ++ return jhash_3words(a, 0, 0, initval); ++} ++ ++#endif /* _LINUX_IPSET_JHASH_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_macipmap.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_macipmap.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_macipmap.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_macipmap.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,38 @@ ++#ifndef __IP_SET_MACIPMAP_H ++#define __IP_SET_MACIPMAP_H ++ ++#include ++ ++#define SETTYPE_NAME "macipmap" ++#define MAX_RANGE 0x0000FFFF ++ ++/* general flags */ ++#define IPSET_MACIP_MATCHUNSET 1 ++ ++/* per ip flags */ ++#define IPSET_MACIP_ISSET 1 ++ ++struct ip_set_macipmap { ++ void *members; /* the macipmap proper */ ++ ip_set_ip_t first_ip; /* host byte order, included in range */ ++ ip_set_ip_t last_ip; /* host byte order, included in range */ ++ u_int32_t flags; ++}; ++ ++struct ip_set_req_macipmap_create { ++ ip_set_ip_t from; ++ ip_set_ip_t to; ++ u_int32_t flags; ++}; ++ ++struct ip_set_req_macipmap { ++ ip_set_ip_t ip; ++ unsigned char ethernet[ETH_ALEN]; ++}; ++ ++struct ip_set_macip { ++ unsigned short flags; ++ unsigned char ethernet[ETH_ALEN]; ++}; ++ ++#endif /* __IP_SET_MACIPMAP_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_malloc.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_malloc.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_malloc.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_malloc.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,42 @@ ++#ifndef _IP_SET_MALLOC_H ++#define _IP_SET_MALLOC_H ++ ++#ifdef __KERNEL__ ++ ++/* Memory allocation and deallocation */ ++static size_t max_malloc_size = 0; ++ ++static inline void init_max_malloc_size(void) ++{ ++#define CACHE(x) max_malloc_size = x; ++#include ++#undef CACHE ++} ++ ++static inline void * ip_set_malloc_atomic(size_t bytes) ++{ ++ if (bytes > max_malloc_size) ++ return __vmalloc(bytes, GFP_ATOMIC, PAGE_KERNEL); ++ else ++ return kmalloc(bytes, GFP_ATOMIC); ++} ++ ++static inline void * ip_set_malloc(size_t bytes) ++{ ++ if (bytes > max_malloc_size) ++ return vmalloc(bytes); ++ else ++ return kmalloc(bytes, GFP_KERNEL); ++} ++ ++static inline void ip_set_free(void * data, size_t bytes) ++{ ++ if (bytes > max_malloc_size) ++ vfree(data); ++ else ++ kfree(data); ++} ++ ++#endif /* __KERNEL__ */ ++ ++#endif /*_IP_SET_MALLOC_H*/ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_nethash.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_nethash.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_nethash.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_nethash.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,55 @@ ++#ifndef __IP_SET_NETHASH_H ++#define __IP_SET_NETHASH_H ++ ++#include ++ ++#define SETTYPE_NAME "nethash" ++#define MAX_RANGE 0x0000FFFF ++ ++struct ip_set_nethash { ++ ip_set_ip_t *members; /* the nethash proper */ ++ uint32_t initval; /* initval for jhash_1word */ ++ uint32_t prime; /* prime for double hashing */ ++ uint32_t hashsize; /* hash size */ ++ uint16_t probes; /* max number of probes */ ++ uint16_t resize; /* resize factor in percent */ ++ unsigned char cidr[30]; /* CIDR sizes */ ++}; ++ ++struct ip_set_req_nethash_create { ++ uint32_t hashsize; ++ uint16_t probes; ++ uint16_t resize; ++}; ++ ++struct ip_set_req_nethash { ++ ip_set_ip_t ip; ++ unsigned char cidr; ++}; ++ ++static unsigned char shifts[] = {255, 253, 249, 241, 225, 193, 129, 1}; ++ ++static inline ip_set_ip_t ++pack(ip_set_ip_t ip, unsigned char cidr) ++{ ++ ip_set_ip_t addr, *paddr = &addr; ++ unsigned char n, t, *a; ++ ++ addr = htonl(ip & (0xFFFFFFFF << (32 - (cidr)))); ++#ifdef __KERNEL__ ++ DP("ip:%u.%u.%u.%u/%u", NIPQUAD(addr), cidr); ++#endif ++ n = cidr / 8; ++ t = cidr % 8; ++ a = &((unsigned char *)paddr)[n]; ++ *a = *a /(1 << (8 - t)) + shifts[t]; ++#ifdef __KERNEL__ ++ DP("n: %u, t: %u, a: %u", n, t, *a); ++ DP("ip:%u.%u.%u.%u/%u, %u.%u.%u.%u", ++ HIPQUAD(ip), cidr, NIPQUAD(addr)); ++#endif ++ ++ return ntohl(addr); ++} ++ ++#endif /* __IP_SET_NETHASH_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_portmap.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_portmap.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_portmap.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_portmap.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,25 @@ ++#ifndef __IP_SET_PORTMAP_H ++#define __IP_SET_PORTMAP_H ++ ++#include ++ ++#define SETTYPE_NAME "portmap" ++#define MAX_RANGE 0x0000FFFF ++#define INVALID_PORT (MAX_RANGE + 1) ++ ++struct ip_set_portmap { ++ void *members; /* the portmap proper */ ++ ip_set_ip_t first_port; /* host byte order, included in range */ ++ ip_set_ip_t last_port; /* host byte order, included in range */ ++}; ++ ++struct ip_set_req_portmap_create { ++ ip_set_ip_t from; ++ ip_set_ip_t to; ++}; ++ ++struct ip_set_req_portmap { ++ ip_set_ip_t port; ++}; ++ ++#endif /* __IP_SET_PORTMAP_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_prime.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_prime.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_set_prime.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_set_prime.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,34 @@ ++#ifndef __IP_SET_PRIME_H ++#define __IP_SET_PRIME_H ++ ++static inline unsigned make_prime_bound(unsigned nr) ++{ ++ unsigned long long nr64 = nr; ++ unsigned long long x = 1; ++ nr = 1; ++ while (x <= nr64) { x <<= 2; nr <<= 1; } ++ return nr; ++} ++ ++static inline int make_prime_check(unsigned nr) ++{ ++ unsigned x = 3; ++ unsigned b = make_prime_bound(nr); ++ while (x <= b) { ++ if (0 == (nr % x)) return 0; ++ x += 2; ++ } ++ return 1; ++} ++ ++static unsigned make_prime(unsigned nr) ++{ ++ if (0 == (nr & 1)) nr--; ++ while (nr > 1) { ++ if (make_prime_check(nr)) return nr; ++ nr -= 2; ++ } ++ return 2; ++} ++ ++#endif /* __IP_SET_PRIME_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_set.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_set.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_set.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_set.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,21 @@ ++#ifndef _IPT_SET_H ++#define _IPT_SET_H ++ ++#include ++ ++struct ipt_set_info { ++ ip_set_id_t index; ++ u_int32_t flags[IP_SET_MAX_BINDINGS + 1]; ++}; ++ ++/* match info */ ++struct ipt_set_info_match { ++ struct ipt_set_info match_set; ++}; ++ ++struct ipt_set_info_target { ++ struct ipt_set_info add_set; ++ struct ipt_set_info del_set; ++}; ++ ++#endif /*_IPT_SET_H*/ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/listhelp.h linux-2.6.19.dev/include/linux/netfilter_ipv4/listhelp.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/listhelp.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/listhelp.h 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,123 @@ ++#ifndef _LISTHELP_H ++#define _LISTHELP_H ++#include ++ ++/* Header to do more comprehensive job than linux/list.h; assume list ++ is first entry in structure. */ ++ ++/* Return pointer to first true entry, if any, or NULL. A macro ++ required to allow inlining of cmpfn. */ ++#define LIST_FIND(head, cmpfn, type, args...) \ ++({ \ ++ const struct list_head *__i, *__j = NULL; \ ++ \ ++ ASSERT_READ_LOCK(head); \ ++ list_for_each(__i, (head)) \ ++ if (cmpfn((const type)__i , ## args)) { \ ++ __j = __i; \ ++ break; \ ++ } \ ++ (type)__j; \ ++}) ++ ++#define LIST_FIND_W(head, cmpfn, type, args...) \ ++({ \ ++ const struct list_head *__i, *__j = NULL; \ ++ \ ++ ASSERT_WRITE_LOCK(head); \ ++ list_for_each(__i, (head)) \ ++ if (cmpfn((type)__i , ## args)) { \ ++ __j = __i; \ ++ break; \ ++ } \ ++ (type)__j; \ ++}) ++ ++/* Just like LIST_FIND but we search backwards */ ++#define LIST_FIND_B(head, cmpfn, type, args...) \ ++({ \ ++ const struct list_head *__i, *__j = NULL; \ ++ \ ++ ASSERT_READ_LOCK(head); \ ++ list_for_each_prev(__i, (head)) \ ++ if (cmpfn((const type)__i , ## args)) { \ ++ __j = __i; \ ++ break; \ ++ } \ ++ (type)__j; \ ++}) ++ ++static inline int ++__list_cmp_same(const void *p1, const void *p2) { return p1 == p2; } ++ ++/* Is this entry in the list? */ ++static inline int ++list_inlist(struct list_head *head, const void *entry) ++{ ++ return LIST_FIND(head, __list_cmp_same, void *, entry) != NULL; ++} ++ ++/* Delete from list. */ ++#ifdef CONFIG_NETFILTER_DEBUG ++#define LIST_DELETE(head, oldentry) \ ++do { \ ++ ASSERT_WRITE_LOCK(head); \ ++ if (!list_inlist(head, oldentry)) \ ++ printk("LIST_DELETE: %s:%u `%s'(%p) not in %s.\n", \ ++ __FILE__, __LINE__, #oldentry, oldentry, #head); \ ++ else list_del((struct list_head *)oldentry); \ ++} while(0) ++#else ++#define LIST_DELETE(head, oldentry) list_del((struct list_head *)oldentry) ++#endif ++ ++/* Append. */ ++static inline void ++list_append(struct list_head *head, void *new) ++{ ++ ASSERT_WRITE_LOCK(head); ++ list_add((new), (head)->prev); ++} ++ ++/* Prepend. */ ++static inline void ++list_prepend(struct list_head *head, void *new) ++{ ++ ASSERT_WRITE_LOCK(head); ++ list_add(new, head); ++} ++ ++/* Insert according to ordering function; insert before first true. */ ++#define LIST_INSERT(head, new, cmpfn) \ ++do { \ ++ struct list_head *__i; \ ++ ASSERT_WRITE_LOCK(head); \ ++ list_for_each(__i, (head)) \ ++ if ((new), (typeof (new))__i) \ ++ break; \ ++ list_add((struct list_head *)(new), __i->prev); \ ++} while(0) ++ ++/* If the field after the list_head is a nul-terminated string, you ++ can use these functions. */ ++static inline int __list_cmp_name(const void *i, const char *name) ++{ ++ return strcmp(name, i+sizeof(struct list_head)) == 0; ++} ++ ++/* Returns false if same name already in list, otherwise does insert. */ ++static inline int ++list_named_insert(struct list_head *head, void *new) ++{ ++ if (LIST_FIND(head, __list_cmp_name, void *, ++ new + sizeof(struct list_head))) ++ return 0; ++ list_prepend(head, new); ++ return 1; ++} ++ ++/* Find this named element in the list. */ ++#define list_named_find(head, name) \ ++LIST_FIND(head, __list_cmp_name, void *, name) ++ ++#endif /*_LISTHELP_H*/ +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set.c +--- linux-2.6.19.old/net/ipv4/netfilter/ip_set.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set.c 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,1989 @@ ++/* Copyright (C) 2000-2002 Joakim Axelsson ++ * Patrick Schaaf ++ * Copyright (C) 2003-2004 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* Kernel module for IP set management */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#define ASSERT_READ_LOCK(x) /* dont use that */ ++#define ASSERT_WRITE_LOCK(x) ++#include ++#include ++ ++static struct list_head set_type_list; /* all registered sets */ ++static struct ip_set **ip_set_list; /* all individual sets */ ++static DEFINE_RWLOCK(ip_set_lock); /* protects the lists and the hash */ ++static DECLARE_MUTEX(ip_set_app_mutex); /* serializes user access */ ++static ip_set_id_t ip_set_max = CONFIG_IP_NF_SET_MAX; ++static ip_set_id_t ip_set_bindings_hash_size = CONFIG_IP_NF_SET_HASHSIZE; ++static struct list_head *ip_set_hash; /* hash of bindings */ ++static unsigned int ip_set_hash_random; /* random seed */ ++ ++/* ++ * Sets are identified either by the index in ip_set_list or by id. ++ * The id never changes and is used to find a key in the hash. ++ * The index may change by swapping and used at all other places ++ * (set/SET netfilter modules, binding value, etc.) ++ * ++ * Userspace requests are serialized by ip_set_mutex and sets can ++ * be deleted only from userspace. Therefore ip_set_list locking ++ * must obey the following rules: ++ * ++ * - kernel requests: read and write locking mandatory ++ * - user requests: read locking optional, write locking mandatory ++ */ ++ ++static inline void ++__ip_set_get(ip_set_id_t index) ++{ ++ atomic_inc(&ip_set_list[index]->ref); ++} ++ ++static inline void ++__ip_set_put(ip_set_id_t index) ++{ ++ atomic_dec(&ip_set_list[index]->ref); ++} ++ ++/* ++ * Binding routines ++ */ ++ ++static inline int ++ip_hash_cmp(const struct ip_set_hash *set_hash, ++ ip_set_id_t id, ip_set_ip_t ip) ++{ ++ return set_hash->id == id && set_hash->ip == ip; ++} ++ ++static ip_set_id_t ++ip_set_find_in_hash(ip_set_id_t id, ip_set_ip_t ip) ++{ ++ u_int32_t key = jhash_2words(id, ip, ip_set_hash_random) ++ % ip_set_bindings_hash_size; ++ struct ip_set_hash *set_hash; ++ ++ ASSERT_READ_LOCK(&ip_set_lock); ++ IP_SET_ASSERT(ip_set_list[id]); ++ DP("set: %s, ip: %u.%u.%u.%u", ip_set_list[id]->name, HIPQUAD(ip)); ++ ++ set_hash = LIST_FIND(&ip_set_hash[key], ip_hash_cmp, ++ struct ip_set_hash *, id, ip); ++ ++ DP("set: %s, ip: %u.%u.%u.%u, binding: %s", ip_set_list[id]->name, ++ HIPQUAD(ip), ++ set_hash != NULL ? ip_set_list[set_hash->binding]->name : ""); ++ ++ return (set_hash != NULL ? set_hash->binding : IP_SET_INVALID_ID); ++} ++ ++static inline void ++__set_hash_del(struct ip_set_hash *set_hash) ++{ ++ ASSERT_WRITE_LOCK(&ip_set_lock); ++ IP_SET_ASSERT(ip_set_list[set_hash->binding]); ++ ++ __ip_set_put(set_hash->binding); ++ list_del(&set_hash->list); ++ kfree(set_hash); ++} ++ ++static int ++ip_set_hash_del(ip_set_id_t id, ip_set_ip_t ip) ++{ ++ u_int32_t key = jhash_2words(id, ip, ip_set_hash_random) ++ % ip_set_bindings_hash_size; ++ struct ip_set_hash *set_hash; ++ ++ IP_SET_ASSERT(ip_set_list[id]); ++ DP("set: %s, ip: %u.%u.%u.%u", ip_set_list[id]->name, HIPQUAD(ip)); ++ write_lock_bh(&ip_set_lock); ++ set_hash = LIST_FIND(&ip_set_hash[key], ip_hash_cmp, ++ struct ip_set_hash *, id, ip); ++ DP("set: %s, ip: %u.%u.%u.%u, binding: %s", ip_set_list[id]->name, ++ HIPQUAD(ip), ++ set_hash != NULL ? ip_set_list[set_hash->binding]->name : ""); ++ ++ if (set_hash != NULL) ++ __set_hash_del(set_hash); ++ write_unlock_bh(&ip_set_lock); ++ return 0; ++} ++ ++static int ++ip_set_hash_add(ip_set_id_t id, ip_set_ip_t ip, ip_set_id_t binding) ++{ ++ u_int32_t key = jhash_2words(id, ip, ip_set_hash_random) ++ % ip_set_bindings_hash_size; ++ struct ip_set_hash *set_hash; ++ int ret = 0; ++ ++ IP_SET_ASSERT(ip_set_list[id]); ++ IP_SET_ASSERT(ip_set_list[binding]); ++ DP("set: %s, ip: %u.%u.%u.%u, binding: %s", ip_set_list[id]->name, ++ HIPQUAD(ip), ip_set_list[binding]->name); ++ write_lock_bh(&ip_set_lock); ++ set_hash = LIST_FIND(&ip_set_hash[key], ip_hash_cmp, ++ struct ip_set_hash *, id, ip); ++ if (!set_hash) { ++ set_hash = kmalloc(sizeof(struct ip_set_hash), GFP_KERNEL); ++ if (!set_hash) { ++ ret = -ENOMEM; ++ goto unlock; ++ } ++ INIT_LIST_HEAD(&set_hash->list); ++ set_hash->id = id; ++ set_hash->ip = ip; ++ list_add(&ip_set_hash[key], &set_hash->list); ++ } else { ++ IP_SET_ASSERT(ip_set_list[set_hash->binding]); ++ DP("overwrite binding: %s", ++ ip_set_list[set_hash->binding]->name); ++ __ip_set_put(set_hash->binding); ++ } ++ set_hash->binding = binding; ++ __ip_set_get(set_hash->binding); ++ unlock: ++ write_unlock_bh(&ip_set_lock); ++ return ret; ++} ++ ++#define FOREACH_HASH_DO(fn, args...) \ ++({ \ ++ ip_set_id_t __key; \ ++ struct ip_set_hash *__set_hash; \ ++ \ ++ for (__key = 0; __key < ip_set_bindings_hash_size; __key++) { \ ++ list_for_each_entry(__set_hash, &ip_set_hash[__key], list) \ ++ fn(__set_hash , ## args); \ ++ } \ ++}) ++ ++#define FOREACH_HASH_RW_DO(fn, args...) \ ++({ \ ++ ip_set_id_t __key; \ ++ struct ip_set_hash *__set_hash, *__n; \ ++ \ ++ ASSERT_WRITE_LOCK(&ip_set_lock); \ ++ for (__key = 0; __key < ip_set_bindings_hash_size; __key++) { \ ++ list_for_each_entry_safe(__set_hash, __n, &ip_set_hash[__key], list)\ ++ fn(__set_hash , ## args); \ ++ } \ ++}) ++ ++/* Add, del and test set entries from kernel */ ++ ++#define follow_bindings(index, set, ip) \ ++((index = ip_set_find_in_hash((set)->id, ip)) != IP_SET_INVALID_ID \ ++ || (index = (set)->binding) != IP_SET_INVALID_ID) ++ ++int ++ip_set_testip_kernel(ip_set_id_t index, ++ const struct sk_buff *skb, ++ const u_int32_t *flags) ++{ ++ struct ip_set *set; ++ ip_set_ip_t ip; ++ int res, i = 0; ++ ++ IP_SET_ASSERT(flags[i]); ++ read_lock_bh(&ip_set_lock); ++ do { ++ set = ip_set_list[index]; ++ IP_SET_ASSERT(set); ++ DP("set %s, index %u", set->name, index); ++ read_lock_bh(&set->lock); ++ res = set->type->testip_kernel(set, skb, flags[i], &ip); ++ read_unlock_bh(&set->lock); ++ } while (res > 0 ++ && flags[++i] ++ && follow_bindings(index, set, ip)); ++ read_unlock_bh(&ip_set_lock); ++ ++ return res; ++} ++ ++void ++ip_set_addip_kernel(ip_set_id_t index, ++ const struct sk_buff *skb, ++ const u_int32_t *flags) ++{ ++ struct ip_set *set; ++ ip_set_ip_t ip; ++ int res, i= 0; ++ ++ IP_SET_ASSERT(flags[i]); ++ retry: ++ read_lock_bh(&ip_set_lock); ++ do { ++ set = ip_set_list[index]; ++ IP_SET_ASSERT(set); ++ DP("set %s, index %u", set->name, index); ++ write_lock_bh(&set->lock); ++ res = set->type->addip_kernel(set, skb, flags[i], &ip); ++ write_unlock_bh(&set->lock); ++ } while ((res == 0 || res == -EEXIST) ++ && flags[++i] ++ && follow_bindings(index, set, ip)); ++ read_unlock_bh(&ip_set_lock); ++ ++ if (res == -EAGAIN ++ && set->type->retry ++ && (res = set->type->retry(set)) == 0) ++ goto retry; ++} ++ ++void ++ip_set_delip_kernel(ip_set_id_t index, ++ const struct sk_buff *skb, ++ const u_int32_t *flags) ++{ ++ struct ip_set *set; ++ ip_set_ip_t ip; ++ int res, i = 0; ++ ++ IP_SET_ASSERT(flags[i]); ++ read_lock_bh(&ip_set_lock); ++ do { ++ set = ip_set_list[index]; ++ IP_SET_ASSERT(set); ++ DP("set %s, index %u", set->name, index); ++ write_lock_bh(&set->lock); ++ res = set->type->delip_kernel(set, skb, flags[i], &ip); ++ write_unlock_bh(&set->lock); ++ } while ((res == 0 || res == -EEXIST) ++ && flags[++i] ++ && follow_bindings(index, set, ip)); ++ read_unlock_bh(&ip_set_lock); ++} ++ ++/* Register and deregister settype */ ++ ++static inline int ++set_type_equal(const struct ip_set_type *set_type, const char *str2) ++{ ++ return !strncmp(set_type->typename, str2, IP_SET_MAXNAMELEN - 1); ++} ++ ++static inline struct ip_set_type * ++find_set_type(const char *name) ++{ ++ return LIST_FIND(&set_type_list, ++ set_type_equal, ++ struct ip_set_type *, ++ name); ++} ++ ++int ++ip_set_register_set_type(struct ip_set_type *set_type) ++{ ++ int ret = 0; ++ ++ if (set_type->protocol_version != IP_SET_PROTOCOL_VERSION) { ++ ip_set_printk("'%s' uses wrong protocol version %u (want %u)", ++ set_type->typename, ++ set_type->protocol_version, ++ IP_SET_PROTOCOL_VERSION); ++ return -EINVAL; ++ } ++ ++ write_lock_bh(&ip_set_lock); ++ if (find_set_type(set_type->typename)) { ++ /* Duplicate! */ ++ ip_set_printk("'%s' already registered!", ++ set_type->typename); ++ ret = -EINVAL; ++ goto unlock; ++ } ++ if (!try_module_get(THIS_MODULE)) { ++ ret = -EFAULT; ++ goto unlock; ++ } ++ list_append(&set_type_list, set_type); ++ DP("'%s' registered.", set_type->typename); ++ unlock: ++ write_unlock_bh(&ip_set_lock); ++ return ret; ++} ++ ++void ++ip_set_unregister_set_type(struct ip_set_type *set_type) ++{ ++ write_lock_bh(&ip_set_lock); ++ if (!find_set_type(set_type->typename)) { ++ ip_set_printk("'%s' not registered?", ++ set_type->typename); ++ goto unlock; ++ } ++ LIST_DELETE(&set_type_list, set_type); ++ module_put(THIS_MODULE); ++ DP("'%s' unregistered.", set_type->typename); ++ unlock: ++ write_unlock_bh(&ip_set_lock); ++ ++} ++ ++/* ++ * Userspace routines ++ */ ++ ++/* ++ * Find set by name, reference it once. The reference makes sure the ++ * thing pointed to, does not go away under our feet. Drop the reference ++ * later, using ip_set_put(). ++ */ ++ip_set_id_t ++ip_set_get_byname(const char *name) ++{ ++ ip_set_id_t i, index = IP_SET_INVALID_ID; ++ ++ down(&ip_set_app_mutex); ++ for (i = 0; i < ip_set_max; i++) { ++ if (ip_set_list[i] != NULL ++ && strcmp(ip_set_list[i]->name, name) == 0) { ++ __ip_set_get(i); ++ index = i; ++ break; ++ } ++ } ++ up(&ip_set_app_mutex); ++ return index; ++} ++ ++/* ++ * Find set by index, reference it once. The reference makes sure the ++ * thing pointed to, does not go away under our feet. Drop the reference ++ * later, using ip_set_put(). ++ */ ++ip_set_id_t ++ip_set_get_byindex(ip_set_id_t index) ++{ ++ down(&ip_set_app_mutex); ++ ++ if (index >= ip_set_max) ++ return IP_SET_INVALID_ID; ++ ++ if (ip_set_list[index]) ++ __ip_set_get(index); ++ else ++ index = IP_SET_INVALID_ID; ++ ++ up(&ip_set_app_mutex); ++ return index; ++} ++ ++/* ++ * If the given set pointer points to a valid set, decrement ++ * reference count by 1. The caller shall not assume the index ++ * to be valid, after calling this function. ++ */ ++void ip_set_put(ip_set_id_t index) ++{ ++ down(&ip_set_app_mutex); ++ if (ip_set_list[index]) ++ __ip_set_put(index); ++ up(&ip_set_app_mutex); ++} ++ ++/* Find a set by name or index */ ++static ip_set_id_t ++ip_set_find_byname(const char *name) ++{ ++ ip_set_id_t i, index = IP_SET_INVALID_ID; ++ ++ for (i = 0; i < ip_set_max; i++) { ++ if (ip_set_list[i] != NULL ++ && strcmp(ip_set_list[i]->name, name) == 0) { ++ index = i; ++ break; ++ } ++ } ++ return index; ++} ++ ++static ip_set_id_t ++ip_set_find_byindex(ip_set_id_t index) ++{ ++ if (index >= ip_set_max || ip_set_list[index] == NULL) ++ index = IP_SET_INVALID_ID; ++ ++ return index; ++} ++ ++/* ++ * Add, del, test, bind and unbind ++ */ ++ ++static inline int ++__ip_set_testip(struct ip_set *set, ++ const void *data, ++ size_t size, ++ ip_set_ip_t *ip) ++{ ++ int res; ++ ++ read_lock_bh(&set->lock); ++ res = set->type->testip(set, data, size, ip); ++ read_unlock_bh(&set->lock); ++ ++ return res; ++} ++ ++static int ++__ip_set_addip(ip_set_id_t index, ++ const void *data, ++ size_t size) ++{ ++ struct ip_set *set = ip_set_list[index]; ++ ip_set_ip_t ip; ++ int res; ++ ++ IP_SET_ASSERT(set); ++ do { ++ write_lock_bh(&set->lock); ++ res = set->type->addip(set, data, size, &ip); ++ write_unlock_bh(&set->lock); ++ } while (res == -EAGAIN ++ && set->type->retry ++ && (res = set->type->retry(set)) == 0); ++ ++ return res; ++} ++ ++static int ++ip_set_addip(ip_set_id_t index, ++ const void *data, ++ size_t size) ++{ ++ ++ return __ip_set_addip(index, ++ data + sizeof(struct ip_set_req_adt), ++ size - sizeof(struct ip_set_req_adt)); ++} ++ ++static int ++ip_set_delip(ip_set_id_t index, ++ const void *data, ++ size_t size) ++{ ++ struct ip_set *set = ip_set_list[index]; ++ ip_set_ip_t ip; ++ int res; ++ ++ IP_SET_ASSERT(set); ++ write_lock_bh(&set->lock); ++ res = set->type->delip(set, ++ data + sizeof(struct ip_set_req_adt), ++ size - sizeof(struct ip_set_req_adt), ++ &ip); ++ write_unlock_bh(&set->lock); ++ ++ return res; ++} ++ ++static int ++ip_set_testip(ip_set_id_t index, ++ const void *data, ++ size_t size) ++{ ++ struct ip_set *set = ip_set_list[index]; ++ ip_set_ip_t ip; ++ int res; ++ ++ IP_SET_ASSERT(set); ++ res = __ip_set_testip(set, ++ data + sizeof(struct ip_set_req_adt), ++ size - sizeof(struct ip_set_req_adt), ++ &ip); ++ ++ return (res > 0 ? -EEXIST : res); ++} ++ ++static int ++ip_set_bindip(ip_set_id_t index, ++ const void *data, ++ size_t size) ++{ ++ struct ip_set *set = ip_set_list[index]; ++ struct ip_set_req_bind *req_bind; ++ ip_set_id_t binding; ++ ip_set_ip_t ip; ++ int res; ++ ++ IP_SET_ASSERT(set); ++ if (size < sizeof(struct ip_set_req_bind)) ++ return -EINVAL; ++ ++ req_bind = (struct ip_set_req_bind *) data; ++ req_bind->binding[IP_SET_MAXNAMELEN - 1] = '\0'; ++ ++ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) { ++ /* Default binding of a set */ ++ char *binding_name; ++ ++ if (size != sizeof(struct ip_set_req_bind) + IP_SET_MAXNAMELEN) ++ return -EINVAL; ++ ++ binding_name = (char *)(data + sizeof(struct ip_set_req_bind)); ++ binding_name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ ++ binding = ip_set_find_byname(binding_name); ++ if (binding == IP_SET_INVALID_ID) ++ return -ENOENT; ++ ++ write_lock_bh(&ip_set_lock); ++ /* Sets as binding values are referenced */ ++ if (set->binding != IP_SET_INVALID_ID) ++ __ip_set_put(set->binding); ++ set->binding = binding; ++ __ip_set_get(set->binding); ++ write_unlock_bh(&ip_set_lock); ++ ++ return 0; ++ } ++ binding = ip_set_find_byname(req_bind->binding); ++ if (binding == IP_SET_INVALID_ID) ++ return -ENOENT; ++ ++ res = __ip_set_testip(set, ++ data + sizeof(struct ip_set_req_bind), ++ size - sizeof(struct ip_set_req_bind), ++ &ip); ++ DP("set %s, ip: %u.%u.%u.%u, binding %s", ++ set->name, HIPQUAD(ip), ip_set_list[binding]->name); ++ ++ if (res >= 0) ++ res = ip_set_hash_add(set->id, ip, binding); ++ ++ return res; ++} ++ ++#define FOREACH_SET_DO(fn, args...) \ ++({ \ ++ ip_set_id_t __i; \ ++ struct ip_set *__set; \ ++ \ ++ for (__i = 0; __i < ip_set_max; __i++) { \ ++ __set = ip_set_list[__i]; \ ++ if (__set != NULL) \ ++ fn(__set , ##args); \ ++ } \ ++}) ++ ++static inline void ++__set_hash_del_byid(struct ip_set_hash *set_hash, ip_set_id_t id) ++{ ++ if (set_hash->id == id) ++ __set_hash_del(set_hash); ++} ++ ++static inline void ++__unbind_default(struct ip_set *set) ++{ ++ if (set->binding != IP_SET_INVALID_ID) { ++ /* Sets as binding values are referenced */ ++ __ip_set_put(set->binding); ++ set->binding = IP_SET_INVALID_ID; ++ } ++} ++ ++static int ++ip_set_unbindip(ip_set_id_t index, ++ const void *data, ++ size_t size) ++{ ++ struct ip_set *set; ++ struct ip_set_req_bind *req_bind; ++ ip_set_ip_t ip; ++ int res; ++ ++ DP(""); ++ if (size < sizeof(struct ip_set_req_bind)) ++ return -EINVAL; ++ ++ req_bind = (struct ip_set_req_bind *) data; ++ req_bind->binding[IP_SET_MAXNAMELEN - 1] = '\0'; ++ ++ DP("%u %s", index, req_bind->binding); ++ if (index == IP_SET_INVALID_ID) { ++ /* unbind :all: */ ++ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) { ++ /* Default binding of sets */ ++ write_lock_bh(&ip_set_lock); ++ FOREACH_SET_DO(__unbind_default); ++ write_unlock_bh(&ip_set_lock); ++ return 0; ++ } else if (strcmp(req_bind->binding, IPSET_TOKEN_ALL) == 0) { ++ /* Flush all bindings of all sets*/ ++ write_lock_bh(&ip_set_lock); ++ FOREACH_HASH_RW_DO(__set_hash_del); ++ write_unlock_bh(&ip_set_lock); ++ return 0; ++ } ++ DP("unreachable reached!"); ++ return -EINVAL; ++ } ++ ++ set = ip_set_list[index]; ++ IP_SET_ASSERT(set); ++ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) { ++ /* Default binding of set */ ++ ip_set_id_t binding = ip_set_find_byindex(set->binding); ++ ++ if (binding == IP_SET_INVALID_ID) ++ return -ENOENT; ++ ++ write_lock_bh(&ip_set_lock); ++ /* Sets in hash values are referenced */ ++ __ip_set_put(set->binding); ++ set->binding = IP_SET_INVALID_ID; ++ write_unlock_bh(&ip_set_lock); ++ ++ return 0; ++ } else if (strcmp(req_bind->binding, IPSET_TOKEN_ALL) == 0) { ++ /* Flush all bindings */ ++ ++ write_lock_bh(&ip_set_lock); ++ FOREACH_HASH_RW_DO(__set_hash_del_byid, set->id); ++ write_unlock_bh(&ip_set_lock); ++ return 0; ++ } ++ ++ res = __ip_set_testip(set, ++ data + sizeof(struct ip_set_req_bind), ++ size - sizeof(struct ip_set_req_bind), ++ &ip); ++ ++ DP("set %s, ip: %u.%u.%u.%u", set->name, HIPQUAD(ip)); ++ if (res >= 0) ++ res = ip_set_hash_del(set->id, ip); ++ ++ return res; ++} ++ ++static int ++ip_set_testbind(ip_set_id_t index, ++ const void *data, ++ size_t size) ++{ ++ struct ip_set *set = ip_set_list[index]; ++ struct ip_set_req_bind *req_bind; ++ ip_set_id_t binding; ++ ip_set_ip_t ip; ++ int res; ++ ++ IP_SET_ASSERT(set); ++ if (size < sizeof(struct ip_set_req_bind)) ++ return -EINVAL; ++ ++ req_bind = (struct ip_set_req_bind *) data; ++ req_bind->binding[IP_SET_MAXNAMELEN - 1] = '\0'; ++ ++ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) { ++ /* Default binding of set */ ++ char *binding_name; ++ ++ if (size != sizeof(struct ip_set_req_bind) + IP_SET_MAXNAMELEN) ++ return -EINVAL; ++ ++ binding_name = (char *)(data + sizeof(struct ip_set_req_bind)); ++ binding_name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ ++ binding = ip_set_find_byname(binding_name); ++ if (binding == IP_SET_INVALID_ID) ++ return -ENOENT; ++ ++ res = (set->binding == binding) ? -EEXIST : 0; ++ ++ return res; ++ } ++ binding = ip_set_find_byname(req_bind->binding); ++ if (binding == IP_SET_INVALID_ID) ++ return -ENOENT; ++ ++ ++ res = __ip_set_testip(set, ++ data + sizeof(struct ip_set_req_bind), ++ size - sizeof(struct ip_set_req_bind), ++ &ip); ++ DP("set %s, ip: %u.%u.%u.%u, binding %s", ++ set->name, HIPQUAD(ip), ip_set_list[binding]->name); ++ ++ if (res >= 0) ++ res = (ip_set_find_in_hash(set->id, ip) == binding) ++ ? -EEXIST : 0; ++ ++ return res; ++} ++ ++static struct ip_set_type * ++find_set_type_rlock(const char *typename) ++{ ++ struct ip_set_type *type; ++ ++ read_lock_bh(&ip_set_lock); ++ type = find_set_type(typename); ++ if (type == NULL) ++ read_unlock_bh(&ip_set_lock); ++ ++ return type; ++} ++ ++static int ++find_free_id(const char *name, ++ ip_set_id_t *index, ++ ip_set_id_t *id) ++{ ++ ip_set_id_t i; ++ ++ *id = IP_SET_INVALID_ID; ++ for (i = 0; i < ip_set_max; i++) { ++ if (ip_set_list[i] == NULL) { ++ if (*id == IP_SET_INVALID_ID) ++ *id = *index = i; ++ } else if (strcmp(name, ip_set_list[i]->name) == 0) ++ /* Name clash */ ++ return -EEXIST; ++ } ++ if (*id == IP_SET_INVALID_ID) ++ /* No free slot remained */ ++ return -ERANGE; ++ /* Check that index is usable as id (swapping) */ ++ check: ++ for (i = 0; i < ip_set_max; i++) { ++ if (ip_set_list[i] != NULL ++ && ip_set_list[i]->id == *id) { ++ *id = i; ++ goto check; ++ } ++ } ++ return 0; ++} ++ ++/* ++ * Create a set ++ */ ++static int ++ip_set_create(const char *name, ++ const char *typename, ++ ip_set_id_t restore, ++ const void *data, ++ size_t size) ++{ ++ struct ip_set *set; ++ ip_set_id_t index, id; ++ int res = 0; ++ ++ DP("setname: %s, typename: %s, id: %u", name, typename, restore); ++ /* ++ * First, and without any locks, allocate and initialize ++ * a normal base set structure. ++ */ ++ set = kmalloc(sizeof(struct ip_set), GFP_KERNEL); ++ if (!set) ++ return -ENOMEM; ++ set->lock = RW_LOCK_UNLOCKED; ++ strncpy(set->name, name, IP_SET_MAXNAMELEN); ++ set->binding = IP_SET_INVALID_ID; ++ atomic_set(&set->ref, 0); ++ ++ /* ++ * Next, take the &ip_set_lock, check that we know the type, ++ * and take a reference on the type, to make sure it ++ * stays available while constructing our new set. ++ * ++ * After referencing the type, we drop the &ip_set_lock, ++ * and let the new set construction run without locks. ++ */ ++ set->type = find_set_type_rlock(typename); ++ if (set->type == NULL) { ++ /* Try loading the module */ ++ char modulename[IP_SET_MAXNAMELEN + strlen("ip_set_") + 1]; ++ strcpy(modulename, "ip_set_"); ++ strcat(modulename, typename); ++ DP("try to load %s", modulename); ++ request_module(modulename); ++ set->type = find_set_type_rlock(typename); ++ } ++ if (set->type == NULL) { ++ ip_set_printk("no set type '%s', set '%s' not created", ++ typename, name); ++ res = -ENOENT; ++ goto out; ++ } ++ if (!try_module_get(set->type->me)) { ++ read_unlock_bh(&ip_set_lock); ++ res = -EFAULT; ++ goto out; ++ } ++ read_unlock_bh(&ip_set_lock); ++ ++ /* ++ * Without holding any locks, create private part. ++ */ ++ res = set->type->create(set, data, size); ++ if (res != 0) ++ goto put_out; ++ ++ /* BTW, res==0 here. */ ++ ++ /* ++ * Here, we have a valid, constructed set. &ip_set_lock again, ++ * find free id/index and check that it is not already in ++ * ip_set_list. ++ */ ++ write_lock_bh(&ip_set_lock); ++ if ((res = find_free_id(set->name, &index, &id)) != 0) { ++ DP("no free id!"); ++ goto cleanup; ++ } ++ ++ /* Make sure restore gets the same index */ ++ if (restore != IP_SET_INVALID_ID && index != restore) { ++ DP("Can't restore, sets are screwed up"); ++ res = -ERANGE; ++ goto cleanup; ++ } ++ ++ /* ++ * Finally! Add our shiny new set to the list, and be done. ++ */ ++ DP("create: '%s' created with index %u, id %u!", set->name, index, id); ++ set->id = id; ++ ip_set_list[index] = set; ++ write_unlock_bh(&ip_set_lock); ++ return res; ++ ++ cleanup: ++ write_unlock_bh(&ip_set_lock); ++ set->type->destroy(set); ++ put_out: ++ module_put(set->type->me); ++ out: ++ kfree(set); ++ return res; ++} ++ ++/* ++ * Destroy a given existing set ++ */ ++static void ++ip_set_destroy_set(ip_set_id_t index) ++{ ++ struct ip_set *set = ip_set_list[index]; ++ ++ IP_SET_ASSERT(set); ++ DP("set: %s", set->name); ++ write_lock_bh(&ip_set_lock); ++ FOREACH_HASH_RW_DO(__set_hash_del_byid, set->id); ++ if (set->binding != IP_SET_INVALID_ID) ++ __ip_set_put(set->binding); ++ ip_set_list[index] = NULL; ++ write_unlock_bh(&ip_set_lock); ++ ++ /* Must call it without holding any lock */ ++ set->type->destroy(set); ++ module_put(set->type->me); ++ kfree(set); ++} ++ ++/* ++ * Destroy a set - or all sets ++ * Sets must not be referenced/used. ++ */ ++static int ++ip_set_destroy(ip_set_id_t index) ++{ ++ ip_set_id_t i; ++ ++ /* ref modification always protected by the mutex */ ++ if (index != IP_SET_INVALID_ID) { ++ if (atomic_read(&ip_set_list[index]->ref)) ++ return -EBUSY; ++ ip_set_destroy_set(index); ++ } else { ++ for (i = 0; i < ip_set_max; i++) { ++ if (ip_set_list[i] != NULL ++ && (atomic_read(&ip_set_list[i]->ref))) ++ return -EBUSY; ++ } ++ ++ for (i = 0; i < ip_set_max; i++) { ++ if (ip_set_list[i] != NULL) ++ ip_set_destroy_set(i); ++ } ++ } ++ return 0; ++} ++ ++static void ++ip_set_flush_set(struct ip_set *set) ++{ ++ DP("set: %s %u", set->name, set->id); ++ ++ write_lock_bh(&set->lock); ++ set->type->flush(set); ++ write_unlock_bh(&set->lock); ++} ++ ++/* ++ * Flush data in a set - or in all sets ++ */ ++static int ++ip_set_flush(ip_set_id_t index) ++{ ++ if (index != IP_SET_INVALID_ID) { ++ IP_SET_ASSERT(ip_set_list[index]); ++ ip_set_flush_set(ip_set_list[index]); ++ } else ++ FOREACH_SET_DO(ip_set_flush_set); ++ ++ return 0; ++} ++ ++/* Rename a set */ ++static int ++ip_set_rename(ip_set_id_t index, const char *name) ++{ ++ struct ip_set *set = ip_set_list[index]; ++ ip_set_id_t i; ++ int res = 0; ++ ++ DP("set: %s to %s", set->name, name); ++ write_lock_bh(&ip_set_lock); ++ for (i = 0; i < ip_set_max; i++) { ++ if (ip_set_list[i] != NULL ++ && strncmp(ip_set_list[i]->name, ++ name, ++ IP_SET_MAXNAMELEN - 1) == 0) { ++ res = -EEXIST; ++ goto unlock; ++ } ++ } ++ strncpy(set->name, name, IP_SET_MAXNAMELEN); ++ unlock: ++ write_unlock_bh(&ip_set_lock); ++ return res; ++} ++ ++/* ++ * Swap two sets so that name/index points to the other. ++ * References are also swapped. ++ */ ++static int ++ip_set_swap(ip_set_id_t from_index, ip_set_id_t to_index) ++{ ++ struct ip_set *from = ip_set_list[from_index]; ++ struct ip_set *to = ip_set_list[to_index]; ++ char from_name[IP_SET_MAXNAMELEN]; ++ u_int32_t from_ref; ++ ++ DP("set: %s to %s", from->name, to->name); ++ /* Type can't be changed. Artifical restriction. */ ++ if (from->type->typecode != to->type->typecode) ++ return -ENOEXEC; ++ ++ /* No magic here: ref munging protected by the mutex */ ++ write_lock_bh(&ip_set_lock); ++ strncpy(from_name, from->name, IP_SET_MAXNAMELEN); ++ from_ref = atomic_read(&from->ref); ++ ++ strncpy(from->name, to->name, IP_SET_MAXNAMELEN); ++ atomic_set(&from->ref, atomic_read(&to->ref)); ++ strncpy(to->name, from_name, IP_SET_MAXNAMELEN); ++ atomic_set(&to->ref, from_ref); ++ ++ ip_set_list[from_index] = to; ++ ip_set_list[to_index] = from; ++ ++ write_unlock_bh(&ip_set_lock); ++ return 0; ++} ++ ++/* ++ * List set data ++ */ ++ ++static inline void ++__set_hash_bindings_size_list(struct ip_set_hash *set_hash, ++ ip_set_id_t id, size_t *size) ++{ ++ if (set_hash->id == id) ++ *size += sizeof(struct ip_set_hash_list); ++} ++ ++static inline void ++__set_hash_bindings_size_save(struct ip_set_hash *set_hash, ++ ip_set_id_t id, size_t *size) ++{ ++ if (set_hash->id == id) ++ *size += sizeof(struct ip_set_hash_save); ++} ++ ++static inline void ++__set_hash_bindings(struct ip_set_hash *set_hash, ++ ip_set_id_t id, void *data, int *used) ++{ ++ if (set_hash->id == id) { ++ struct ip_set_hash_list *hash_list = ++ (struct ip_set_hash_list *)(data + *used); ++ ++ hash_list->ip = set_hash->ip; ++ hash_list->binding = set_hash->binding; ++ *used += sizeof(struct ip_set_hash_list); ++ } ++} ++ ++static int ip_set_list_set(ip_set_id_t index, ++ void *data, ++ int *used, ++ int len) ++{ ++ struct ip_set *set = ip_set_list[index]; ++ struct ip_set_list *set_list; ++ ++ /* Pointer to our header */ ++ set_list = (struct ip_set_list *) (data + *used); ++ ++ DP("set: %s, used: %d %p %p", set->name, *used, data, data + *used); ++ ++ /* Get and ensure header size */ ++ if (*used + sizeof(struct ip_set_list) > len) ++ goto not_enough_mem; ++ *used += sizeof(struct ip_set_list); ++ ++ read_lock_bh(&set->lock); ++ /* Get and ensure set specific header size */ ++ set_list->header_size = set->type->header_size; ++ if (*used + set_list->header_size > len) ++ goto unlock_set; ++ ++ /* Fill in the header */ ++ set_list->index = index; ++ set_list->binding = set->binding; ++ set_list->ref = atomic_read(&set->ref); ++ ++ /* Fill in set spefific header data */ ++ set->type->list_header(set, data + *used); ++ *used += set_list->header_size; ++ ++ /* Get and ensure set specific members size */ ++ set_list->members_size = set->type->list_members_size(set); ++ if (*used + set_list->members_size > len) ++ goto unlock_set; ++ ++ /* Fill in set spefific members data */ ++ set->type->list_members(set, data + *used); ++ *used += set_list->members_size; ++ read_unlock_bh(&set->lock); ++ ++ /* Bindings */ ++ ++ /* Get and ensure set specific bindings size */ ++ set_list->bindings_size = 0; ++ FOREACH_HASH_DO(__set_hash_bindings_size_list, ++ set->id, &set_list->bindings_size); ++ if (*used + set_list->bindings_size > len) ++ goto not_enough_mem; ++ ++ /* Fill in set spefific bindings data */ ++ FOREACH_HASH_DO(__set_hash_bindings, set->id, data, used); ++ ++ return 0; ++ ++ unlock_set: ++ read_unlock_bh(&set->lock); ++ not_enough_mem: ++ DP("not enough mem, try again"); ++ return -EAGAIN; ++} ++ ++/* ++ * Save sets ++ */ ++static int ip_set_save_set(ip_set_id_t index, ++ void *data, ++ int *used, ++ int len) ++{ ++ struct ip_set *set; ++ struct ip_set_save *set_save; ++ ++ /* Pointer to our header */ ++ set_save = (struct ip_set_save *) (data + *used); ++ ++ /* Get and ensure header size */ ++ if (*used + sizeof(struct ip_set_save) > len) ++ goto not_enough_mem; ++ *used += sizeof(struct ip_set_save); ++ ++ set = ip_set_list[index]; ++ DP("set: %s, used: %u(%u) %p %p", set->name, *used, len, ++ data, data + *used); ++ ++ read_lock_bh(&set->lock); ++ /* Get and ensure set specific header size */ ++ set_save->header_size = set->type->header_size; ++ if (*used + set_save->header_size > len) ++ goto unlock_set; ++ ++ /* Fill in the header */ ++ set_save->index = index; ++ set_save->binding = set->binding; ++ ++ /* Fill in set spefific header data */ ++ set->type->list_header(set, data + *used); ++ *used += set_save->header_size; ++ ++ DP("set header filled: %s, used: %u %p %p", set->name, *used, ++ data, data + *used); ++ /* Get and ensure set specific members size */ ++ set_save->members_size = set->type->list_members_size(set); ++ if (*used + set_save->members_size > len) ++ goto unlock_set; ++ ++ /* Fill in set spefific members data */ ++ set->type->list_members(set, data + *used); ++ *used += set_save->members_size; ++ read_unlock_bh(&set->lock); ++ DP("set members filled: %s, used: %u %p %p", set->name, *used, ++ data, data + *used); ++ return 0; ++ ++ unlock_set: ++ read_unlock_bh(&set->lock); ++ not_enough_mem: ++ DP("not enough mem, try again"); ++ return -EAGAIN; ++} ++ ++static inline void ++__set_hash_save_bindings(struct ip_set_hash *set_hash, ++ ip_set_id_t id, ++ void *data, ++ int *used, ++ int len, ++ int *res) ++{ ++ if (*res == 0 ++ && (id == IP_SET_INVALID_ID || set_hash->id == id)) { ++ struct ip_set_hash_save *hash_save = ++ (struct ip_set_hash_save *)(data + *used); ++ /* Ensure bindings size */ ++ if (*used + sizeof(struct ip_set_hash_save) > len) { ++ *res = -ENOMEM; ++ return; ++ } ++ hash_save->id = set_hash->id; ++ hash_save->ip = set_hash->ip; ++ hash_save->binding = set_hash->binding; ++ *used += sizeof(struct ip_set_hash_save); ++ } ++} ++ ++static int ip_set_save_bindings(ip_set_id_t index, ++ void *data, ++ int *used, ++ int len) ++{ ++ int res = 0; ++ struct ip_set_save *set_save; ++ ++ DP("used %u, len %u", *used, len); ++ /* Get and ensure header size */ ++ if (*used + sizeof(struct ip_set_save) > len) ++ return -ENOMEM; ++ ++ /* Marker */ ++ set_save = (struct ip_set_save *) (data + *used); ++ set_save->index = IP_SET_INVALID_ID; ++ *used += sizeof(struct ip_set_save); ++ ++ DP("marker added used %u, len %u", *used, len); ++ /* Fill in bindings data */ ++ if (index != IP_SET_INVALID_ID) ++ /* Sets are identified by id in hash */ ++ index = ip_set_list[index]->id; ++ FOREACH_HASH_DO(__set_hash_save_bindings, index, data, used, len, &res); ++ ++ return res; ++} ++ ++/* ++ * Restore sets ++ */ ++static int ip_set_restore(void *data, ++ int len) ++{ ++ int res = 0; ++ int line = 0, used = 0, members_size; ++ struct ip_set *set; ++ struct ip_set_hash_save *hash_save; ++ struct ip_set_restore *set_restore; ++ ip_set_id_t index; ++ ++ /* Loop to restore sets */ ++ while (1) { ++ line++; ++ ++ DP("%u %u %u", used, sizeof(struct ip_set_restore), len); ++ /* Get and ensure header size */ ++ if (used + sizeof(struct ip_set_restore) > len) ++ return line; ++ set_restore = (struct ip_set_restore *) (data + used); ++ used += sizeof(struct ip_set_restore); ++ ++ /* Ensure data size */ ++ if (used ++ + set_restore->header_size ++ + set_restore->members_size > len) ++ return line; ++ ++ /* Check marker */ ++ if (set_restore->index == IP_SET_INVALID_ID) { ++ line--; ++ goto bindings; ++ } ++ ++ /* Try to create the set */ ++ DP("restore %s %s", set_restore->name, set_restore->typename); ++ res = ip_set_create(set_restore->name, ++ set_restore->typename, ++ set_restore->index, ++ data + used, ++ set_restore->header_size); ++ ++ if (res != 0) ++ return line; ++ used += set_restore->header_size; ++ ++ index = ip_set_find_byindex(set_restore->index); ++ DP("index %u, restore_index %u", index, set_restore->index); ++ if (index != set_restore->index) ++ return line; ++ /* Try to restore members data */ ++ set = ip_set_list[index]; ++ members_size = 0; ++ DP("members_size %u reqsize %u", ++ set_restore->members_size, set->type->reqsize); ++ while (members_size + set->type->reqsize <= ++ set_restore->members_size) { ++ line++; ++ DP("members: %u, line %u", members_size, line); ++ res = __ip_set_addip(index, ++ data + used + members_size, ++ set->type->reqsize); ++ if (!(res == 0 || res == -EEXIST)) ++ return line; ++ members_size += set->type->reqsize; ++ } ++ ++ DP("members_size %u %u", ++ set_restore->members_size, members_size); ++ if (members_size != set_restore->members_size) ++ return line++; ++ used += set_restore->members_size; ++ } ++ ++ bindings: ++ /* Loop to restore bindings */ ++ while (used < len) { ++ line++; ++ ++ DP("restore binding, line %u", line); ++ /* Get and ensure size */ ++ if (used + sizeof(struct ip_set_hash_save) > len) ++ return line; ++ hash_save = (struct ip_set_hash_save *) (data + used); ++ used += sizeof(struct ip_set_hash_save); ++ ++ /* hash_save->id is used to store the index */ ++ index = ip_set_find_byindex(hash_save->id); ++ DP("restore binding index %u, id %u, %u -> %u", ++ index, hash_save->id, hash_save->ip, hash_save->binding); ++ if (index != hash_save->id) ++ return line; ++ ++ set = ip_set_list[hash_save->id]; ++ /* Null valued IP means default binding */ ++ if (hash_save->ip) ++ res = ip_set_hash_add(set->id, ++ hash_save->ip, ++ hash_save->binding); ++ else { ++ IP_SET_ASSERT(set->binding == IP_SET_INVALID_ID); ++ write_lock_bh(&ip_set_lock); ++ set->binding = hash_save->binding; ++ __ip_set_get(set->binding); ++ write_unlock_bh(&ip_set_lock); ++ DP("default binding: %u", set->binding); ++ } ++ if (res != 0) ++ return line; ++ } ++ if (used != len) ++ return line; ++ ++ return 0; ++} ++ ++static int ++ip_set_sockfn_set(struct sock *sk, int optval, void *user, unsigned int len) ++{ ++ void *data; ++ int res = 0; /* Assume OK */ ++ unsigned *op; ++ struct ip_set_req_adt *req_adt; ++ ip_set_id_t index = IP_SET_INVALID_ID; ++ int (*adtfn)(ip_set_id_t index, ++ const void *data, size_t size); ++ struct fn_table { ++ int (*fn)(ip_set_id_t index, ++ const void *data, size_t size); ++ } adtfn_table[] = ++ { { ip_set_addip }, { ip_set_delip }, { ip_set_testip}, ++ { ip_set_bindip}, { ip_set_unbindip }, { ip_set_testbind }, ++ }; ++ ++ DP("optval=%d, user=%p, len=%d", optval, user, len); ++ if (!capable(CAP_NET_ADMIN)) ++ return -EPERM; ++ if (optval != SO_IP_SET) ++ return -EBADF; ++ if (len <= sizeof(unsigned)) { ++ ip_set_printk("short userdata (want >%zu, got %u)", ++ sizeof(unsigned), len); ++ return -EINVAL; ++ } ++ data = vmalloc(len); ++ if (!data) { ++ DP("out of mem for %u bytes", len); ++ return -ENOMEM; ++ } ++ if (copy_from_user(data, user, len) != 0) { ++ res = -EFAULT; ++ goto done; ++ } ++ if (down_interruptible(&ip_set_app_mutex)) { ++ res = -EINTR; ++ goto done; ++ } ++ ++ op = (unsigned *)data; ++ DP("op=%x", *op); ++ ++ if (*op < IP_SET_OP_VERSION) { ++ /* Check the version at the beginning of operations */ ++ struct ip_set_req_version *req_version = ++ (struct ip_set_req_version *) data; ++ if (req_version->version != IP_SET_PROTOCOL_VERSION) { ++ res = -EPROTO; ++ goto done; ++ } ++ } ++ ++ switch (*op) { ++ case IP_SET_OP_CREATE:{ ++ struct ip_set_req_create *req_create ++ = (struct ip_set_req_create *) data; ++ ++ if (len <= sizeof(struct ip_set_req_create)) { ++ ip_set_printk("short CREATE data (want >%zu, got %u)", ++ sizeof(struct ip_set_req_create), len); ++ res = -EINVAL; ++ goto done; ++ } ++ req_create->name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ req_create->typename[IP_SET_MAXNAMELEN - 1] = '\0'; ++ res = ip_set_create(req_create->name, ++ req_create->typename, ++ IP_SET_INVALID_ID, ++ data + sizeof(struct ip_set_req_create), ++ len - sizeof(struct ip_set_req_create)); ++ goto done; ++ } ++ case IP_SET_OP_DESTROY:{ ++ struct ip_set_req_std *req_destroy ++ = (struct ip_set_req_std *) data; ++ ++ if (len != sizeof(struct ip_set_req_std)) { ++ ip_set_printk("invalid DESTROY data (want %zu, got %u)", ++ sizeof(struct ip_set_req_std), len); ++ res = -EINVAL; ++ goto done; ++ } ++ if (strcmp(req_destroy->name, IPSET_TOKEN_ALL) == 0) { ++ /* Destroy all sets */ ++ index = IP_SET_INVALID_ID; ++ } else { ++ req_destroy->name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ index = ip_set_find_byname(req_destroy->name); ++ ++ if (index == IP_SET_INVALID_ID) { ++ res = -ENOENT; ++ goto done; ++ } ++ } ++ ++ res = ip_set_destroy(index); ++ goto done; ++ } ++ case IP_SET_OP_FLUSH:{ ++ struct ip_set_req_std *req_flush = ++ (struct ip_set_req_std *) data; ++ ++ if (len != sizeof(struct ip_set_req_std)) { ++ ip_set_printk("invalid FLUSH data (want %zu, got %u)", ++ sizeof(struct ip_set_req_std), len); ++ res = -EINVAL; ++ goto done; ++ } ++ if (strcmp(req_flush->name, IPSET_TOKEN_ALL) == 0) { ++ /* Flush all sets */ ++ index = IP_SET_INVALID_ID; ++ } else { ++ req_flush->name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ index = ip_set_find_byname(req_flush->name); ++ ++ if (index == IP_SET_INVALID_ID) { ++ res = -ENOENT; ++ goto done; ++ } ++ } ++ res = ip_set_flush(index); ++ goto done; ++ } ++ case IP_SET_OP_RENAME:{ ++ struct ip_set_req_create *req_rename ++ = (struct ip_set_req_create *) data; ++ ++ if (len != sizeof(struct ip_set_req_create)) { ++ ip_set_printk("invalid RENAME data (want %zu, got %u)", ++ sizeof(struct ip_set_req_create), len); ++ res = -EINVAL; ++ goto done; ++ } ++ ++ req_rename->name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ req_rename->typename[IP_SET_MAXNAMELEN - 1] = '\0'; ++ ++ index = ip_set_find_byname(req_rename->name); ++ if (index == IP_SET_INVALID_ID) { ++ res = -ENOENT; ++ goto done; ++ } ++ res = ip_set_rename(index, req_rename->typename); ++ goto done; ++ } ++ case IP_SET_OP_SWAP:{ ++ struct ip_set_req_create *req_swap ++ = (struct ip_set_req_create *) data; ++ ip_set_id_t to_index; ++ ++ if (len != sizeof(struct ip_set_req_create)) { ++ ip_set_printk("invalid SWAP data (want %zu, got %u)", ++ sizeof(struct ip_set_req_create), len); ++ res = -EINVAL; ++ goto done; ++ } ++ ++ req_swap->name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ req_swap->typename[IP_SET_MAXNAMELEN - 1] = '\0'; ++ ++ index = ip_set_find_byname(req_swap->name); ++ if (index == IP_SET_INVALID_ID) { ++ res = -ENOENT; ++ goto done; ++ } ++ to_index = ip_set_find_byname(req_swap->typename); ++ if (to_index == IP_SET_INVALID_ID) { ++ res = -ENOENT; ++ goto done; ++ } ++ res = ip_set_swap(index, to_index); ++ goto done; ++ } ++ default: ++ break; /* Set identified by id */ ++ } ++ ++ /* There we may have add/del/test/bind/unbind/test_bind operations */ ++ if (*op < IP_SET_OP_ADD_IP || *op > IP_SET_OP_TEST_BIND_SET) { ++ res = -EBADMSG; ++ goto done; ++ } ++ adtfn = adtfn_table[*op - IP_SET_OP_ADD_IP].fn; ++ ++ if (len < sizeof(struct ip_set_req_adt)) { ++ ip_set_printk("short data in adt request (want >=%zu, got %u)", ++ sizeof(struct ip_set_req_adt), len); ++ res = -EINVAL; ++ goto done; ++ } ++ req_adt = (struct ip_set_req_adt *) data; ++ ++ /* -U :all: :all:|:default: uses IP_SET_INVALID_ID */ ++ if (!(*op == IP_SET_OP_UNBIND_SET ++ && req_adt->index == IP_SET_INVALID_ID)) { ++ index = ip_set_find_byindex(req_adt->index); ++ if (index == IP_SET_INVALID_ID) { ++ res = -ENOENT; ++ goto done; ++ } ++ } ++ res = adtfn(index, data, len); ++ ++ done: ++ up(&ip_set_app_mutex); ++ vfree(data); ++ if (res > 0) ++ res = 0; ++ DP("final result %d", res); ++ return res; ++} ++ ++static int ++ip_set_sockfn_get(struct sock *sk, int optval, void *user, int *len) ++{ ++ int res = 0; ++ unsigned *op; ++ ip_set_id_t index = IP_SET_INVALID_ID; ++ void *data; ++ int copylen = *len; ++ ++ DP("optval=%d, user=%p, len=%d", optval, user, *len); ++ if (!capable(CAP_NET_ADMIN)) ++ return -EPERM; ++ if (optval != SO_IP_SET) ++ return -EBADF; ++ if (*len < sizeof(unsigned)) { ++ ip_set_printk("short userdata (want >=%zu, got %d)", ++ sizeof(unsigned), *len); ++ return -EINVAL; ++ } ++ data = vmalloc(*len); ++ if (!data) { ++ DP("out of mem for %d bytes", *len); ++ return -ENOMEM; ++ } ++ if (copy_from_user(data, user, *len) != 0) { ++ res = -EFAULT; ++ goto done; ++ } ++ if (down_interruptible(&ip_set_app_mutex)) { ++ res = -EINTR; ++ goto done; ++ } ++ ++ op = (unsigned *) data; ++ DP("op=%x", *op); ++ ++ if (*op < IP_SET_OP_VERSION) { ++ /* Check the version at the beginning of operations */ ++ struct ip_set_req_version *req_version = ++ (struct ip_set_req_version *) data; ++ if (req_version->version != IP_SET_PROTOCOL_VERSION) { ++ res = -EPROTO; ++ goto done; ++ } ++ } ++ ++ switch (*op) { ++ case IP_SET_OP_VERSION: { ++ struct ip_set_req_version *req_version = ++ (struct ip_set_req_version *) data; ++ ++ if (*len != sizeof(struct ip_set_req_version)) { ++ ip_set_printk("invalid VERSION (want %zu, got %d)", ++ sizeof(struct ip_set_req_version), ++ *len); ++ res = -EINVAL; ++ goto done; ++ } ++ ++ req_version->version = IP_SET_PROTOCOL_VERSION; ++ res = copy_to_user(user, req_version, ++ sizeof(struct ip_set_req_version)); ++ goto done; ++ } ++ case IP_SET_OP_GET_BYNAME: { ++ struct ip_set_req_get_set *req_get ++ = (struct ip_set_req_get_set *) data; ++ ++ if (*len != sizeof(struct ip_set_req_get_set)) { ++ ip_set_printk("invalid GET_BYNAME (want %zu, got %d)", ++ sizeof(struct ip_set_req_get_set), *len); ++ res = -EINVAL; ++ goto done; ++ } ++ req_get->set.name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ index = ip_set_find_byname(req_get->set.name); ++ req_get->set.index = index; ++ goto copy; ++ } ++ case IP_SET_OP_GET_BYINDEX: { ++ struct ip_set_req_get_set *req_get ++ = (struct ip_set_req_get_set *) data; ++ ++ if (*len != sizeof(struct ip_set_req_get_set)) { ++ ip_set_printk("invalid GET_BYINDEX (want %zu, got %d)", ++ sizeof(struct ip_set_req_get_set), *len); ++ res = -EINVAL; ++ goto done; ++ } ++ req_get->set.name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ index = ip_set_find_byindex(req_get->set.index); ++ strncpy(req_get->set.name, ++ index == IP_SET_INVALID_ID ? "" ++ : ip_set_list[index]->name, IP_SET_MAXNAMELEN); ++ goto copy; ++ } ++ case IP_SET_OP_ADT_GET: { ++ struct ip_set_req_adt_get *req_get ++ = (struct ip_set_req_adt_get *) data; ++ ++ if (*len != sizeof(struct ip_set_req_adt_get)) { ++ ip_set_printk("invalid ADT_GET (want %zu, got %d)", ++ sizeof(struct ip_set_req_adt_get), *len); ++ res = -EINVAL; ++ goto done; ++ } ++ req_get->set.name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ index = ip_set_find_byname(req_get->set.name); ++ if (index != IP_SET_INVALID_ID) { ++ req_get->set.index = index; ++ strncpy(req_get->typename, ++ ip_set_list[index]->type->typename, ++ IP_SET_MAXNAMELEN - 1); ++ } else { ++ res = -ENOENT; ++ goto done; ++ } ++ goto copy; ++ } ++ case IP_SET_OP_MAX_SETS: { ++ struct ip_set_req_max_sets *req_max_sets ++ = (struct ip_set_req_max_sets *) data; ++ ip_set_id_t i; ++ ++ if (*len != sizeof(struct ip_set_req_max_sets)) { ++ ip_set_printk("invalid MAX_SETS (want %zu, got %d)", ++ sizeof(struct ip_set_req_max_sets), *len); ++ res = -EINVAL; ++ goto done; ++ } ++ ++ if (strcmp(req_max_sets->set.name, IPSET_TOKEN_ALL) == 0) { ++ req_max_sets->set.index = IP_SET_INVALID_ID; ++ } else { ++ req_max_sets->set.name[IP_SET_MAXNAMELEN - 1] = '\0'; ++ req_max_sets->set.index = ++ ip_set_find_byname(req_max_sets->set.name); ++ if (req_max_sets->set.index == IP_SET_INVALID_ID) { ++ res = -ENOENT; ++ goto done; ++ } ++ } ++ req_max_sets->max_sets = ip_set_max; ++ req_max_sets->sets = 0; ++ for (i = 0; i < ip_set_max; i++) { ++ if (ip_set_list[i] != NULL) ++ req_max_sets->sets++; ++ } ++ goto copy; ++ } ++ case IP_SET_OP_LIST_SIZE: ++ case IP_SET_OP_SAVE_SIZE: { ++ struct ip_set_req_setnames *req_setnames ++ = (struct ip_set_req_setnames *) data; ++ struct ip_set_name_list *name_list; ++ struct ip_set *set; ++ ip_set_id_t i; ++ int used; ++ ++ if (*len < sizeof(struct ip_set_req_setnames)) { ++ ip_set_printk("short LIST_SIZE (want >=%zu, got %d)", ++ sizeof(struct ip_set_req_setnames), *len); ++ res = -EINVAL; ++ goto done; ++ } ++ ++ req_setnames->size = 0; ++ used = sizeof(struct ip_set_req_setnames); ++ for (i = 0; i < ip_set_max; i++) { ++ if (ip_set_list[i] == NULL) ++ continue; ++ name_list = (struct ip_set_name_list *) ++ (data + used); ++ used += sizeof(struct ip_set_name_list); ++ if (used > copylen) { ++ res = -EAGAIN; ++ goto done; ++ } ++ set = ip_set_list[i]; ++ /* Fill in index, name, etc. */ ++ name_list->index = i; ++ name_list->id = set->id; ++ strncpy(name_list->name, ++ set->name, ++ IP_SET_MAXNAMELEN - 1); ++ strncpy(name_list->typename, ++ set->type->typename, ++ IP_SET_MAXNAMELEN - 1); ++ DP("filled %s of type %s, index %u\n", ++ name_list->name, name_list->typename, ++ name_list->index); ++ if (!(req_setnames->index == IP_SET_INVALID_ID ++ || req_setnames->index == i)) ++ continue; ++ /* Update size */ ++ switch (*op) { ++ case IP_SET_OP_LIST_SIZE: { ++ req_setnames->size += sizeof(struct ip_set_list) ++ + set->type->header_size ++ + set->type->list_members_size(set); ++ FOREACH_HASH_DO(__set_hash_bindings_size_list, ++ i, &req_setnames->size); ++ break; ++ } ++ case IP_SET_OP_SAVE_SIZE: { ++ req_setnames->size += sizeof(struct ip_set_save) ++ + set->type->header_size ++ + set->type->list_members_size(set); ++ FOREACH_HASH_DO(__set_hash_bindings_size_save, ++ i, &req_setnames->size); ++ break; ++ } ++ default: ++ break; ++ } ++ } ++ if (copylen != used) { ++ res = -EAGAIN; ++ goto done; ++ } ++ goto copy; ++ } ++ case IP_SET_OP_LIST: { ++ struct ip_set_req_list *req_list ++ = (struct ip_set_req_list *) data; ++ ip_set_id_t i; ++ int used; ++ ++ if (*len < sizeof(struct ip_set_req_list)) { ++ ip_set_printk("short LIST (want >=%zu, got %d)", ++ sizeof(struct ip_set_req_list), *len); ++ res = -EINVAL; ++ goto done; ++ } ++ index = req_list->index; ++ if (index != IP_SET_INVALID_ID ++ && ip_set_find_byindex(index) != index) { ++ res = -ENOENT; ++ goto done; ++ } ++ used = 0; ++ if (index == IP_SET_INVALID_ID) { ++ /* List all sets */ ++ for (i = 0; i < ip_set_max && res == 0; i++) { ++ if (ip_set_list[i] != NULL) ++ res = ip_set_list_set(i, data, &used, *len); ++ } ++ } else { ++ /* List an individual set */ ++ res = ip_set_list_set(index, data, &used, *len); ++ } ++ if (res != 0) ++ goto done; ++ else if (copylen != used) { ++ res = -EAGAIN; ++ goto done; ++ } ++ goto copy; ++ } ++ case IP_SET_OP_SAVE: { ++ struct ip_set_req_list *req_save ++ = (struct ip_set_req_list *) data; ++ ip_set_id_t i; ++ int used; ++ ++ if (*len < sizeof(struct ip_set_req_list)) { ++ ip_set_printk("short SAVE (want >=%zu, got %d)", ++ sizeof(struct ip_set_req_list), *len); ++ res = -EINVAL; ++ goto done; ++ } ++ index = req_save->index; ++ if (index != IP_SET_INVALID_ID ++ && ip_set_find_byindex(index) != index) { ++ res = -ENOENT; ++ goto done; ++ } ++ used = 0; ++ if (index == IP_SET_INVALID_ID) { ++ /* Save all sets */ ++ for (i = 0; i < ip_set_max && res == 0; i++) { ++ if (ip_set_list[i] != NULL) ++ res = ip_set_save_set(i, data, &used, *len); ++ } ++ } else { ++ /* Save an individual set */ ++ res = ip_set_save_set(index, data, &used, *len); ++ } ++ if (res == 0) ++ res = ip_set_save_bindings(index, data, &used, *len); ++ ++ if (res != 0) ++ goto done; ++ else if (copylen != used) { ++ res = -EAGAIN; ++ goto done; ++ } ++ goto copy; ++ } ++ case IP_SET_OP_RESTORE: { ++ struct ip_set_req_setnames *req_restore ++ = (struct ip_set_req_setnames *) data; ++ int line; ++ ++ if (*len < sizeof(struct ip_set_req_setnames) ++ || *len != req_restore->size) { ++ ip_set_printk("invalid RESTORE (want =%zu, got %d)", ++ req_restore->size, *len); ++ res = -EINVAL; ++ goto done; ++ } ++ line = ip_set_restore(data + sizeof(struct ip_set_req_setnames), ++ req_restore->size - sizeof(struct ip_set_req_setnames)); ++ DP("ip_set_restore: %u", line); ++ if (line != 0) { ++ res = -EAGAIN; ++ req_restore->size = line; ++ copylen = sizeof(struct ip_set_req_setnames); ++ goto copy; ++ } ++ goto done; ++ } ++ default: ++ res = -EBADMSG; ++ goto done; ++ } /* end of switch(op) */ ++ ++ copy: ++ DP("set %s, copylen %u", index != IP_SET_INVALID_ID ++ && ip_set_list[index] ++ ? ip_set_list[index]->name ++ : ":all:", copylen); ++ if (res == 0) ++ res = copy_to_user(user, data, copylen); ++ else ++ copy_to_user(user, data, copylen); ++ ++ done: ++ up(&ip_set_app_mutex); ++ vfree(data); ++ if (res > 0) ++ res = 0; ++ DP("final result %d", res); ++ return res; ++} ++ ++static struct nf_sockopt_ops so_set = { ++ .pf = PF_INET, ++ .set_optmin = SO_IP_SET, ++ .set_optmax = SO_IP_SET + 1, ++ .set = &ip_set_sockfn_set, ++ .get_optmin = SO_IP_SET, ++ .get_optmax = SO_IP_SET + 1, ++ .get = &ip_set_sockfn_get, ++ .use = 0 ++}; ++ ++static int max_sets, hash_size; ++module_param(max_sets, int, 0600); ++MODULE_PARM_DESC(max_sets, "maximal number of sets"); ++module_param(hash_size, int, 0600); ++MODULE_PARM_DESC(hash_size, "hash size for bindings"); ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Jozsef Kadlecsik "); ++MODULE_DESCRIPTION("module implementing core IP set support"); ++ ++static int __init init(void) ++{ ++ int res; ++ ip_set_id_t i; ++ ++ get_random_bytes(&ip_set_hash_random, 4); ++ if (max_sets) ++ ip_set_max = max_sets; ++ ip_set_list = vmalloc(sizeof(struct ip_set *) * ip_set_max); ++ if (!ip_set_list) { ++ printk(KERN_ERR "Unable to create ip_set_list\n"); ++ return -ENOMEM; ++ } ++ memset(ip_set_list, 0, sizeof(struct ip_set *) * ip_set_max); ++ if (hash_size) ++ ip_set_bindings_hash_size = hash_size; ++ ip_set_hash = vmalloc(sizeof(struct list_head) * ip_set_bindings_hash_size); ++ if (!ip_set_hash) { ++ printk(KERN_ERR "Unable to create ip_set_hash\n"); ++ vfree(ip_set_list); ++ return -ENOMEM; ++ } ++ for (i = 0; i < ip_set_bindings_hash_size; i++) ++ INIT_LIST_HEAD(&ip_set_hash[i]); ++ ++ INIT_LIST_HEAD(&set_type_list); ++ ++ res = nf_register_sockopt(&so_set); ++ if (res != 0) { ++ ip_set_printk("SO_SET registry failed: %d", res); ++ vfree(ip_set_list); ++ vfree(ip_set_hash); ++ return res; ++ } ++ return 0; ++} ++ ++static void __exit fini(void) ++{ ++ /* There can't be any existing set or binding */ ++ nf_unregister_sockopt(&so_set); ++ vfree(ip_set_list); ++ vfree(ip_set_hash); ++ DP("these are the famous last words"); ++} ++ ++EXPORT_SYMBOL(ip_set_register_set_type); ++EXPORT_SYMBOL(ip_set_unregister_set_type); ++ ++EXPORT_SYMBOL(ip_set_get_byname); ++EXPORT_SYMBOL(ip_set_get_byindex); ++EXPORT_SYMBOL(ip_set_put); ++ ++EXPORT_SYMBOL(ip_set_addip_kernel); ++EXPORT_SYMBOL(ip_set_delip_kernel); ++EXPORT_SYMBOL(ip_set_testip_kernel); ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_iphash.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_iphash.c +--- linux-2.6.19.old/net/ipv4/netfilter/ip_set_iphash.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_iphash.c 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,379 @@ ++/* Copyright (C) 2003-2004 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* Kernel module implementing an ip hash set */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++#include ++#include ++#include ++#include ++ ++static inline __u32 ++jhash_ip(const struct ip_set_iphash *map, ip_set_ip_t ip) ++{ ++ return jhash_1word(ip, map->initval); ++} ++ ++static inline __u32 ++randhash_ip(const struct ip_set_iphash *map, ip_set_ip_t ip) ++{ ++ return (1 + ip % map->prime); ++} ++ ++static inline __u32 ++hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; ++ __u32 jhash, randhash, id; ++ u_int16_t i; ++ ++ *hash_ip = ip & map->netmask; ++ jhash = jhash_ip(map, *hash_ip); ++ randhash = randhash_ip(map, *hash_ip); ++ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u, %u.%u.%u.%u", ++ set->name, HIPQUAD(ip), HIPQUAD(*hash_ip), HIPQUAD(map->netmask)); ++ ++ for (i = 0; i < map->probes; i++) { ++ id = (jhash + i * randhash) % map->hashsize; ++ DP("hash key: %u", id); ++ if (map->members[id] == *hash_ip) ++ return id; ++ /* No shortcut at testing - there can be deleted ++ * entries. */ ++ } ++ return UINT_MAX; ++} ++ ++static inline int ++__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ return (hash_id(set, ip, hash_ip) != UINT_MAX); ++} ++ ++static int ++testip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_iphash *req = ++ (struct ip_set_req_iphash *) data; ++ ++ if (size != sizeof(struct ip_set_req_iphash)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_iphash), ++ size); ++ return -EINVAL; ++ } ++ return __testip(set, req->ip, hash_ip); ++} ++ ++static int ++testip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ return __testip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++} ++ ++static inline int ++__addip(struct ip_set_iphash *map, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ __u32 jhash, randhash, probe; ++ u_int16_t i; ++ ++ *hash_ip = ip & map->netmask; ++ jhash = jhash_ip(map, *hash_ip); ++ randhash = randhash_ip(map, *hash_ip); ++ ++ for (i = 0; i < map->probes; i++) { ++ probe = (jhash + i * randhash) % map->hashsize; ++ if (map->members[probe] == *hash_ip) ++ return -EEXIST; ++ if (!map->members[probe]) { ++ map->members[probe] = *hash_ip; ++ return 0; ++ } ++ } ++ /* Trigger rehashing */ ++ return -EAGAIN; ++} ++ ++static int ++addip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_iphash *req = ++ (struct ip_set_req_iphash *) data; ++ ++ if (size != sizeof(struct ip_set_req_iphash)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_iphash), ++ size); ++ return -EINVAL; ++ } ++ return __addip((struct ip_set_iphash *) set->data, req->ip, hash_ip); ++} ++ ++static int ++addip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ return __addip((struct ip_set_iphash *) set->data, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++} ++ ++static int retry(struct ip_set *set) ++{ ++ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; ++ ip_set_ip_t hash_ip, *members; ++ u_int32_t i, hashsize; ++ unsigned newbytes; ++ int res; ++ struct ip_set_iphash tmp = { ++ .hashsize = map->hashsize, ++ .probes = map->probes, ++ .resize = map->resize, ++ .netmask = map->netmask, ++ }; ++ ++ if (map->resize == 0) ++ return -ERANGE; ++ ++ again: ++ res = 0; ++ ++ /* Calculate new parameters */ ++ get_random_bytes(&tmp.initval, 4); ++ hashsize = tmp.hashsize + (tmp.hashsize * map->resize)/100; ++ if (hashsize == tmp.hashsize) ++ hashsize++; ++ tmp.prime = make_prime(hashsize); ++ ++ ip_set_printk("rehashing of set %s triggered: " ++ "hashsize grows from %u to %u", ++ set->name, tmp.hashsize, hashsize); ++ tmp.hashsize = hashsize; ++ ++ newbytes = hashsize * sizeof(ip_set_ip_t); ++ tmp.members = ip_set_malloc_atomic(newbytes); ++ if (!tmp.members) { ++ DP("out of memory for %d bytes", newbytes); ++ return -ENOMEM; ++ } ++ memset(tmp.members, 0, newbytes); ++ ++ write_lock_bh(&set->lock); ++ map = (struct ip_set_iphash *) set->data; /* Play safe */ ++ for (i = 0; i < map->hashsize && res == 0; i++) { ++ if (map->members[i]) ++ res = __addip(&tmp, map->members[i], &hash_ip); ++ } ++ if (res) { ++ /* Failure, try again */ ++ write_unlock_bh(&set->lock); ++ ip_set_free(tmp.members, newbytes); ++ goto again; ++ } ++ ++ /* Success at resizing! */ ++ members = map->members; ++ hashsize = map->hashsize; ++ ++ map->initval = tmp.initval; ++ map->prime = tmp.prime; ++ map->hashsize = tmp.hashsize; ++ map->members = tmp.members; ++ write_unlock_bh(&set->lock); ++ ++ ip_set_free(members, hashsize * sizeof(ip_set_ip_t)); ++ ++ return 0; ++} ++ ++static inline int ++__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; ++ ip_set_ip_t id = hash_id(set, ip, hash_ip); ++ ++ if (id == UINT_MAX) ++ return -EEXIST; ++ ++ map->members[id] = 0; ++ return 0; ++} ++ ++static int ++delip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_iphash *req = ++ (struct ip_set_req_iphash *) data; ++ ++ if (size != sizeof(struct ip_set_req_iphash)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_iphash), ++ size); ++ return -EINVAL; ++ } ++ return __delip(set, req->ip, hash_ip); ++} ++ ++static int ++delip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ return __delip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++} ++ ++static int create(struct ip_set *set, const void *data, size_t size) ++{ ++ unsigned newbytes; ++ struct ip_set_req_iphash_create *req = ++ (struct ip_set_req_iphash_create *) data; ++ struct ip_set_iphash *map; ++ ++ if (size != sizeof(struct ip_set_req_iphash_create)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_iphash_create), ++ size); ++ return -EINVAL; ++ } ++ ++ if (req->hashsize < 1) { ++ ip_set_printk("hashsize too small"); ++ return -ENOEXEC; ++ } ++ ++ map = kmalloc(sizeof(struct ip_set_iphash), GFP_KERNEL); ++ if (!map) { ++ DP("out of memory for %d bytes", ++ sizeof(struct ip_set_iphash)); ++ return -ENOMEM; ++ } ++ get_random_bytes(&map->initval, 4); ++ map->prime = make_prime(req->hashsize); ++ map->hashsize = req->hashsize; ++ map->probes = req->probes; ++ map->resize = req->resize; ++ map->netmask = req->netmask; ++ newbytes = map->hashsize * sizeof(ip_set_ip_t); ++ map->members = ip_set_malloc(newbytes); ++ if (!map->members) { ++ DP("out of memory for %d bytes", newbytes); ++ kfree(map); ++ return -ENOMEM; ++ } ++ memset(map->members, 0, newbytes); ++ ++ set->data = map; ++ return 0; ++} ++ ++static void destroy(struct ip_set *set) ++{ ++ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; ++ ++ ip_set_free(map->members, map->hashsize * sizeof(ip_set_ip_t)); ++ kfree(map); ++ ++ set->data = NULL; ++} ++ ++static void flush(struct ip_set *set) ++{ ++ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; ++ memset(map->members, 0, map->hashsize * sizeof(ip_set_ip_t)); ++} ++ ++static void list_header(const struct ip_set *set, void *data) ++{ ++ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; ++ struct ip_set_req_iphash_create *header = ++ (struct ip_set_req_iphash_create *) data; ++ ++ header->hashsize = map->hashsize; ++ header->probes = map->probes; ++ header->resize = map->resize; ++ header->netmask = map->netmask; ++} ++ ++static int list_members_size(const struct ip_set *set) ++{ ++ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; ++ ++ return (map->hashsize * sizeof(ip_set_ip_t)); ++} ++ ++static void list_members(const struct ip_set *set, void *data) ++{ ++ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data; ++ int bytes = map->hashsize * sizeof(ip_set_ip_t); ++ ++ memcpy(data, map->members, bytes); ++} ++ ++static struct ip_set_type ip_set_iphash = { ++ .typename = SETTYPE_NAME, ++ .typecode = IPSET_TYPE_IP, ++ .protocol_version = IP_SET_PROTOCOL_VERSION, ++ .create = &create, ++ .destroy = &destroy, ++ .flush = &flush, ++ .reqsize = sizeof(struct ip_set_req_iphash), ++ .addip = &addip, ++ .addip_kernel = &addip_kernel, ++ .retry = &retry, ++ .delip = &delip, ++ .delip_kernel = &delip_kernel, ++ .testip = &testip, ++ .testip_kernel = &testip_kernel, ++ .header_size = sizeof(struct ip_set_req_iphash_create), ++ .list_header = &list_header, ++ .list_members_size = &list_members_size, ++ .list_members = &list_members, ++ .me = THIS_MODULE, ++}; ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Jozsef Kadlecsik "); ++MODULE_DESCRIPTION("iphash type of IP sets"); ++ ++static int __init init(void) ++{ ++ init_max_malloc_size(); ++ return ip_set_register_set_type(&ip_set_iphash); ++} ++ ++static void __exit fini(void) ++{ ++ /* FIXME: possible race with ip_set_create() */ ++ ip_set_unregister_set_type(&ip_set_iphash); ++} ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_ipmap.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_ipmap.c +--- linux-2.6.19.old/net/ipv4/netfilter/ip_set_ipmap.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_ipmap.c 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,313 @@ ++/* Copyright (C) 2000-2002 Joakim Axelsson ++ * Patrick Schaaf ++ * Copyright (C) 2003-2004 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* Kernel module implementing an IP set type: the single bitmap type */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++static inline ip_set_ip_t ++ip_to_id(const struct ip_set_ipmap *map, ip_set_ip_t ip) ++{ ++ return (ip - map->first_ip)/map->hosts; ++} ++ ++static inline int ++__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; ++ ++ if (ip < map->first_ip || ip > map->last_ip) ++ return -ERANGE; ++ ++ *hash_ip = ip & map->netmask; ++ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u", ++ set->name, HIPQUAD(ip), HIPQUAD(*hash_ip)); ++ return !!test_bit(ip_to_id(map, *hash_ip), map->members); ++} ++ ++static int ++testip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_ipmap *req = ++ (struct ip_set_req_ipmap *) data; ++ ++ if (size != sizeof(struct ip_set_req_ipmap)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_ipmap), ++ size); ++ return -EINVAL; ++ } ++ return __testip(set, req->ip, hash_ip); ++} ++ ++static int ++testip_kernel(struct ip_set *set, ++ const struct sk_buff *skb, ++ u_int32_t flags, ++ ip_set_ip_t *hash_ip) ++{ ++ int res; ++ ++ DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", ++ flags & IPSET_SRC ? "SRC" : "DST", ++ NIPQUAD(skb->nh.iph->saddr), ++ NIPQUAD(skb->nh.iph->daddr)); ++ ++ res = __testip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++ return (res < 0 ? 0 : res); ++} ++ ++static inline int ++__addip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; ++ ++ if (ip < map->first_ip || ip > map->last_ip) ++ return -ERANGE; ++ ++ *hash_ip = ip & map->netmask; ++ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip)); ++ if (test_and_set_bit(ip_to_id(map, *hash_ip), map->members)) ++ return -EEXIST; ++ ++ return 0; ++} ++ ++static int ++addip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_ipmap *req = ++ (struct ip_set_req_ipmap *) data; ++ ++ if (size != sizeof(struct ip_set_req_ipmap)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_ipmap), ++ size); ++ return -EINVAL; ++ } ++ DP("%u.%u.%u.%u", HIPQUAD(req->ip)); ++ return __addip(set, req->ip, hash_ip); ++} ++ ++static int ++addip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ return __addip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++} ++ ++static inline int ++__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; ++ ++ if (ip < map->first_ip || ip > map->last_ip) ++ return -ERANGE; ++ ++ *hash_ip = ip & map->netmask; ++ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip)); ++ if (!test_and_clear_bit(ip_to_id(map, *hash_ip), map->members)) ++ return -EEXIST; ++ ++ return 0; ++} ++ ++static int ++delip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_ipmap *req = ++ (struct ip_set_req_ipmap *) data; ++ ++ if (size != sizeof(struct ip_set_req_ipmap)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_ipmap), ++ size); ++ return -EINVAL; ++ } ++ return __delip(set, req->ip, hash_ip); ++} ++ ++static int ++delip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ return __delip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++} ++ ++static int create(struct ip_set *set, const void *data, size_t size) ++{ ++ int newbytes; ++ struct ip_set_req_ipmap_create *req = ++ (struct ip_set_req_ipmap_create *) data; ++ struct ip_set_ipmap *map; ++ ++ if (size != sizeof(struct ip_set_req_ipmap_create)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_ipmap_create), ++ size); ++ return -EINVAL; ++ } ++ ++ DP("from %u.%u.%u.%u to %u.%u.%u.%u", ++ HIPQUAD(req->from), HIPQUAD(req->to)); ++ ++ if (req->from > req->to) { ++ DP("bad ip range"); ++ return -ENOEXEC; ++ } ++ ++ if (req->to - req->from > MAX_RANGE) { ++ ip_set_printk("range too big (max %d addresses)", ++ MAX_RANGE); ++ return -ENOEXEC; ++ } ++ ++ map = kmalloc(sizeof(struct ip_set_ipmap), GFP_KERNEL); ++ if (!map) { ++ DP("out of memory for %d bytes", ++ sizeof(struct ip_set_ipmap)); ++ return -ENOMEM; ++ } ++ map->first_ip = req->from; ++ map->last_ip = req->to; ++ map->netmask = req->netmask; ++ ++ if (req->netmask == 0xFFFFFFFF) { ++ map->hosts = 1; ++ map->sizeid = map->last_ip - map->first_ip + 1; ++ } else { ++ unsigned int mask_bits, netmask_bits; ++ ip_set_ip_t mask; ++ ++ map->first_ip &= map->netmask; /* Should we better bark? */ ++ ++ mask = range_to_mask(map->first_ip, map->last_ip, &mask_bits); ++ netmask_bits = mask_to_bits(map->netmask); ++ ++ if (!mask || netmask_bits <= mask_bits) ++ return -ENOEXEC; ++ ++ map->hosts = 2 << (32 - netmask_bits - 1); ++ map->sizeid = 2 << (netmask_bits - mask_bits - 1); ++ } ++ newbytes = bitmap_bytes(0, map->sizeid - 1); ++ map->members = kmalloc(newbytes, GFP_KERNEL); ++ if (!map->members) { ++ DP("out of memory for %d bytes", newbytes); ++ kfree(map); ++ return -ENOMEM; ++ } ++ memset(map->members, 0, newbytes); ++ ++ set->data = map; ++ return 0; ++} ++ ++static void destroy(struct ip_set *set) ++{ ++ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; ++ ++ kfree(map->members); ++ kfree(map); ++ ++ set->data = NULL; ++} ++ ++static void flush(struct ip_set *set) ++{ ++ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; ++ memset(map->members, 0, bitmap_bytes(0, map->sizeid - 1)); ++} ++ ++static void list_header(const struct ip_set *set, void *data) ++{ ++ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; ++ struct ip_set_req_ipmap_create *header = ++ (struct ip_set_req_ipmap_create *) data; ++ ++ header->from = map->first_ip; ++ header->to = map->last_ip; ++ header->netmask = map->netmask; ++} ++ ++static int list_members_size(const struct ip_set *set) ++{ ++ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; ++ ++ return bitmap_bytes(0, map->sizeid - 1); ++} ++ ++static void list_members(const struct ip_set *set, void *data) ++{ ++ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data; ++ int bytes = bitmap_bytes(0, map->sizeid - 1); ++ ++ memcpy(data, map->members, bytes); ++} ++ ++static struct ip_set_type ip_set_ipmap = { ++ .typename = SETTYPE_NAME, ++ .typecode = IPSET_TYPE_IP, ++ .protocol_version = IP_SET_PROTOCOL_VERSION, ++ .create = &create, ++ .destroy = &destroy, ++ .flush = &flush, ++ .reqsize = sizeof(struct ip_set_req_ipmap), ++ .addip = &addip, ++ .addip_kernel = &addip_kernel, ++ .delip = &delip, ++ .delip_kernel = &delip_kernel, ++ .testip = &testip, ++ .testip_kernel = &testip_kernel, ++ .header_size = sizeof(struct ip_set_req_ipmap_create), ++ .list_header = &list_header, ++ .list_members_size = &list_members_size, ++ .list_members = &list_members, ++ .me = THIS_MODULE, ++}; ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Jozsef Kadlecsik "); ++MODULE_DESCRIPTION("ipmap type of IP sets"); ++ ++static int __init init(void) ++{ ++ return ip_set_register_set_type(&ip_set_ipmap); ++} ++ ++static void __exit fini(void) ++{ ++ /* FIXME: possible race with ip_set_create() */ ++ ip_set_unregister_set_type(&ip_set_ipmap); ++} ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_iptree.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_iptree.c +--- linux-2.6.19.old/net/ipv4/netfilter/ip_set_iptree.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_iptree.c 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,510 @@ ++/* Copyright (C) 2005 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* Kernel module implementing an IP set type: the iptree type */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++/* Garbage collection interval in seconds: */ ++#define IPTREE_GC_TIME 5*60 ++/* Sleep so many milliseconds before trying again ++ * to delete the gc timer at destroying a set */ ++#define IPTREE_DESTROY_SLEEP 100 ++ ++static kmem_cache_t *branch_cachep; ++static kmem_cache_t *leaf_cachep; ++ ++#define ABCD(a,b,c,d,addrp) do { \ ++ a = ((unsigned char *)addrp)[3]; \ ++ b = ((unsigned char *)addrp)[2]; \ ++ c = ((unsigned char *)addrp)[1]; \ ++ d = ((unsigned char *)addrp)[0]; \ ++} while (0) ++ ++#define TESTIP_WALK(map, elem, branch) do { \ ++ if ((map)->tree[elem]) { \ ++ branch = (map)->tree[elem]; \ ++ } else \ ++ return 0; \ ++} while (0) ++ ++static inline int ++__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ struct ip_set_iptreeb *btree; ++ struct ip_set_iptreec *ctree; ++ struct ip_set_iptreed *dtree; ++ unsigned char a,b,c,d; ++ ++ *hash_ip = ip; ++ ABCD(a, b, c, d, hash_ip); ++ DP("%u %u %u %u timeout %u", a, b, c, d, map->timeout); ++ TESTIP_WALK(map, a, btree); ++ TESTIP_WALK(btree, b, ctree); ++ TESTIP_WALK(ctree, c, dtree); ++ DP("%lu %lu", dtree->expires[d], jiffies); ++ return !!(map->timeout ? (time_after(dtree->expires[d], jiffies)) ++ : dtree->expires[d]); ++} ++ ++static int ++testip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_iptree *req = ++ (struct ip_set_req_iptree *) data; ++ ++ if (size != sizeof(struct ip_set_req_iptree)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_iptree), ++ size); ++ return -EINVAL; ++ } ++ return __testip(set, req->ip, hash_ip); ++} ++ ++static int ++testip_kernel(struct ip_set *set, ++ const struct sk_buff *skb, ++ u_int32_t flags, ++ ip_set_ip_t *hash_ip) ++{ ++ int res; ++ ++ DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", ++ flags & IPSET_SRC ? "SRC" : "DST", ++ NIPQUAD(skb->nh.iph->saddr), ++ NIPQUAD(skb->nh.iph->daddr)); ++ ++ res = __testip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++ return (res < 0 ? 0 : res); ++} ++ ++#define ADDIP_WALK(map, elem, branch, type, cachep) do { \ ++ if ((map)->tree[elem]) { \ ++ DP("found %u", elem); \ ++ branch = (map)->tree[elem]; \ ++ } else { \ ++ branch = (type *) \ ++ kmem_cache_alloc(cachep, GFP_KERNEL); \ ++ if (branch == NULL) \ ++ return -ENOMEM; \ ++ memset(branch, 0, sizeof(*branch)); \ ++ (map)->tree[elem] = branch; \ ++ DP("alloc %u", elem); \ ++ } \ ++} while (0) ++ ++static inline int ++__addip(struct ip_set *set, ip_set_ip_t ip, unsigned int timeout, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ struct ip_set_iptreeb *btree; ++ struct ip_set_iptreec *ctree; ++ struct ip_set_iptreed *dtree; ++ unsigned char a,b,c,d; ++ int ret = 0; ++ ++ *hash_ip = ip; ++ ABCD(a, b, c, d, hash_ip); ++ DP("%u %u %u %u timeout %u", a, b, c, d, timeout); ++ ADDIP_WALK(map, a, btree, struct ip_set_iptreeb, branch_cachep); ++ ADDIP_WALK(btree, b, ctree, struct ip_set_iptreec, branch_cachep); ++ ADDIP_WALK(ctree, c, dtree, struct ip_set_iptreed, leaf_cachep); ++ if (dtree->expires[d] ++ && (!map->timeout || time_after(dtree->expires[d], jiffies))) ++ ret = -EEXIST; ++ dtree->expires[d] = map->timeout ? (timeout * HZ + jiffies) : 1; ++ DP("%u %lu", d, dtree->expires[d]); ++ return ret; ++} ++ ++static int ++addip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ struct ip_set_req_iptree *req = ++ (struct ip_set_req_iptree *) data; ++ ++ if (size != sizeof(struct ip_set_req_iptree)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_iptree), ++ size); ++ return -EINVAL; ++ } ++ DP("%u.%u.%u.%u %u", HIPQUAD(req->ip), req->timeout); ++ return __addip(set, req->ip, ++ req->timeout ? req->timeout : map->timeout, ++ hash_ip); ++} ++ ++static int ++addip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ ++ return __addip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ map->timeout, ++ hash_ip); ++} ++ ++#define DELIP_WALK(map, elem, branch) do { \ ++ if ((map)->tree[elem]) { \ ++ branch = (map)->tree[elem]; \ ++ } else \ ++ return -EEXIST; \ ++} while (0) ++ ++static inline int ++__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ struct ip_set_iptreeb *btree; ++ struct ip_set_iptreec *ctree; ++ struct ip_set_iptreed *dtree; ++ unsigned char a,b,c,d; ++ ++ *hash_ip = ip; ++ ABCD(a, b, c, d, hash_ip); ++ DELIP_WALK(map, a, btree); ++ DELIP_WALK(btree, b, ctree); ++ DELIP_WALK(ctree, c, dtree); ++ ++ if (dtree->expires[d]) { ++ dtree->expires[d] = 0; ++ return 0; ++ } ++ return -EEXIST; ++} ++ ++static int ++delip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_iptree *req = ++ (struct ip_set_req_iptree *) data; ++ ++ if (size != sizeof(struct ip_set_req_iptree)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_iptree), ++ size); ++ return -EINVAL; ++ } ++ return __delip(set, req->ip, hash_ip); ++} ++ ++static int ++delip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ return __delip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++} ++ ++#define LOOP_WALK_BEGIN(map, i, branch) \ ++ for (i = 0; i < 255; i++) { \ ++ if (!(map)->tree[i]) \ ++ continue; \ ++ branch = (map)->tree[i] ++ ++#define LOOP_WALK_END } ++ ++static void ip_tree_gc(unsigned long ul_set) ++{ ++ struct ip_set *set = (void *) ul_set; ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ struct ip_set_iptreeb *btree; ++ struct ip_set_iptreec *ctree; ++ struct ip_set_iptreed *dtree; ++ unsigned char a,b,c,d; ++ unsigned char i,j,k; ++ ++ i = j = k = 0; ++ DP("gc: %s", set->name); ++ write_lock_bh(&set->lock); ++ LOOP_WALK_BEGIN(map, a, btree); ++ LOOP_WALK_BEGIN(btree, b, ctree); ++ LOOP_WALK_BEGIN(ctree, c, dtree); ++ for (d = 0; d < 255; d++) { ++ if (dtree->expires[d]) { ++ DP("gc: %u %u %u %u: expires %lu jiffies %lu", ++ a, b, c, d, ++ dtree->expires[d], jiffies); ++ if (map->timeout ++ && time_before(dtree->expires[d], jiffies)) ++ dtree->expires[d] = 0; ++ else ++ k = 1; ++ } ++ } ++ if (k == 0) { ++ DP("gc: %s: leaf %u %u %u empty", ++ set->name, a, b, c); ++ kmem_cache_free(leaf_cachep, dtree); ++ ctree->tree[c] = NULL; ++ } else { ++ DP("gc: %s: leaf %u %u %u not empty", ++ set->name, a, b, c); ++ j = 1; ++ k = 0; ++ } ++ LOOP_WALK_END; ++ if (j == 0) { ++ DP("gc: %s: branch %u %u empty", ++ set->name, a, b); ++ kmem_cache_free(branch_cachep, ctree); ++ btree->tree[b] = NULL; ++ } else { ++ DP("gc: %s: branch %u %u not empty", ++ set->name, a, b); ++ i = 1; ++ j = k = 0; ++ } ++ LOOP_WALK_END; ++ if (i == 0) { ++ DP("gc: %s: branch %u empty", ++ set->name, a); ++ kmem_cache_free(branch_cachep, btree); ++ map->tree[a] = NULL; ++ } else { ++ DP("gc: %s: branch %u not empty", ++ set->name, a); ++ i = j = k = 0; ++ } ++ LOOP_WALK_END; ++ write_unlock_bh(&set->lock); ++ ++ map->gc.expires = jiffies + map->gc_interval * HZ; ++ add_timer(&map->gc); ++} ++ ++static int create(struct ip_set *set, const void *data, size_t size) ++{ ++ struct ip_set_req_iptree_create *req = ++ (struct ip_set_req_iptree_create *) data; ++ struct ip_set_iptree *map; ++ ++ if (size != sizeof(struct ip_set_req_iptree_create)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_iptree_create), ++ size); ++ return -EINVAL; ++ } ++ ++ map = kmalloc(sizeof(struct ip_set_iptree), GFP_KERNEL); ++ if (!map) { ++ DP("out of memory for %d bytes", ++ sizeof(struct ip_set_iptree)); ++ return -ENOMEM; ++ } ++ memset(map, 0, sizeof(*map)); ++ map->timeout = req->timeout; ++ set->data = map; ++ ++ /* If there is no timeout for the entries, ++ * we still have to call gc because delete ++ * do not clean up empty branches */ ++ map->gc_interval = IPTREE_GC_TIME; ++ init_timer(&map->gc); ++ map->gc.data = (unsigned long) set; ++ map->gc.function = ip_tree_gc; ++ map->gc.expires = jiffies + map->gc_interval * HZ; ++ add_timer(&map->gc); ++ ++ return 0; ++} ++ ++static void __flush(struct ip_set_iptree *map) ++{ ++ struct ip_set_iptreeb *btree; ++ struct ip_set_iptreec *ctree; ++ struct ip_set_iptreed *dtree; ++ unsigned int a,b,c; ++ ++ LOOP_WALK_BEGIN(map, a, btree); ++ LOOP_WALK_BEGIN(btree, b, ctree); ++ LOOP_WALK_BEGIN(ctree, c, dtree); ++ kmem_cache_free(leaf_cachep, dtree); ++ LOOP_WALK_END; ++ kmem_cache_free(branch_cachep, ctree); ++ LOOP_WALK_END; ++ kmem_cache_free(branch_cachep, btree); ++ LOOP_WALK_END; ++} ++ ++static void destroy(struct ip_set *set) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ ++ while (!del_timer(&map->gc)) ++ msleep(IPTREE_DESTROY_SLEEP); ++ __flush(map); ++ kfree(map); ++ set->data = NULL; ++} ++ ++static void flush(struct ip_set *set) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ unsigned int timeout = map->timeout; ++ ++ __flush(map); ++ memset(map, 0, sizeof(*map)); ++ map->timeout = timeout; ++} ++ ++static void list_header(const struct ip_set *set, void *data) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ struct ip_set_req_iptree_create *header = ++ (struct ip_set_req_iptree_create *) data; ++ ++ header->timeout = map->timeout; ++} ++ ++static int list_members_size(const struct ip_set *set) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ struct ip_set_iptreeb *btree; ++ struct ip_set_iptreec *ctree; ++ struct ip_set_iptreed *dtree; ++ unsigned char a,b,c,d; ++ unsigned int count = 0; ++ ++ LOOP_WALK_BEGIN(map, a, btree); ++ LOOP_WALK_BEGIN(btree, b, ctree); ++ LOOP_WALK_BEGIN(ctree, c, dtree); ++ for (d = 0; d < 255; d++) { ++ if (dtree->expires[d] ++ && (!map->timeout || time_after(dtree->expires[d], jiffies))) ++ count++; ++ } ++ LOOP_WALK_END; ++ LOOP_WALK_END; ++ LOOP_WALK_END; ++ ++ DP("members %u", count); ++ return (count * sizeof(struct ip_set_req_iptree)); ++} ++ ++static void list_members(const struct ip_set *set, void *data) ++{ ++ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data; ++ struct ip_set_iptreeb *btree; ++ struct ip_set_iptreec *ctree; ++ struct ip_set_iptreed *dtree; ++ unsigned char a,b,c,d; ++ size_t offset = 0; ++ struct ip_set_req_iptree *entry; ++ ++ LOOP_WALK_BEGIN(map, a, btree); ++ LOOP_WALK_BEGIN(btree, b, ctree); ++ LOOP_WALK_BEGIN(ctree, c, dtree); ++ for (d = 0; d < 255; d++) { ++ if (dtree->expires[d] ++ && (!map->timeout || time_after(dtree->expires[d], jiffies))) { ++ entry = (struct ip_set_req_iptree *)(data + offset); ++ entry->ip = ((a << 24) | (b << 16) | (c << 8) | d); ++ entry->timeout = !map->timeout ? 0 ++ : (dtree->expires[d] - jiffies)/HZ; ++ offset += sizeof(struct ip_set_req_iptree); ++ } ++ } ++ LOOP_WALK_END; ++ LOOP_WALK_END; ++ LOOP_WALK_END; ++} ++ ++static struct ip_set_type ip_set_iptree = { ++ .typename = SETTYPE_NAME, ++ .typecode = IPSET_TYPE_IP, ++ .protocol_version = IP_SET_PROTOCOL_VERSION, ++ .create = &create, ++ .destroy = &destroy, ++ .flush = &flush, ++ .reqsize = sizeof(struct ip_set_req_iptree), ++ .addip = &addip, ++ .addip_kernel = &addip_kernel, ++ .delip = &delip, ++ .delip_kernel = &delip_kernel, ++ .testip = &testip, ++ .testip_kernel = &testip_kernel, ++ .header_size = sizeof(struct ip_set_req_iptree_create), ++ .list_header = &list_header, ++ .list_members_size = &list_members_size, ++ .list_members = &list_members, ++ .me = THIS_MODULE, ++}; ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Jozsef Kadlecsik "); ++MODULE_DESCRIPTION("iptree type of IP sets"); ++ ++static int __init init(void) ++{ ++ int ret; ++ ++ branch_cachep = kmem_cache_create("ip_set_iptreeb", ++ sizeof(struct ip_set_iptreeb), ++ 0, 0, NULL, NULL); ++ if (!branch_cachep) { ++ printk(KERN_ERR "Unable to create ip_set_iptreeb slab cache\n"); ++ ret = -ENOMEM; ++ goto out; ++ } ++ leaf_cachep = kmem_cache_create("ip_set_iptreed", ++ sizeof(struct ip_set_iptreed), ++ 0, 0, NULL, NULL); ++ if (!leaf_cachep) { ++ printk(KERN_ERR "Unable to create ip_set_iptreed slab cache\n"); ++ ret = -ENOMEM; ++ goto free_branch; ++ } ++ ret = ip_set_register_set_type(&ip_set_iptree); ++ if (ret == 0) ++ goto out; ++ ++ kmem_cache_destroy(leaf_cachep); ++ free_branch: ++ kmem_cache_destroy(branch_cachep); ++ out: ++ return ret; ++} ++ ++static void __exit fini(void) ++{ ++ /* FIXME: possible race with ip_set_create() */ ++ ip_set_unregister_set_type(&ip_set_iptree); ++ kmem_cache_destroy(leaf_cachep); ++ kmem_cache_destroy(branch_cachep); ++} ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_macipmap.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_macipmap.c +--- linux-2.6.19.old/net/ipv4/netfilter/ip_set_macipmap.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_macipmap.c 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,338 @@ ++/* Copyright (C) 2000-2002 Joakim Axelsson ++ * Patrick Schaaf ++ * Martin Josefsson ++ * Copyright (C) 2003-2004 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* Kernel module implementing an IP set type: the macipmap type */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++ ++static int ++testip(struct ip_set *set, const void *data, size_t size, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_macipmap *map = (struct ip_set_macipmap *) set->data; ++ struct ip_set_macip *table = (struct ip_set_macip *) map->members; ++ struct ip_set_req_macipmap *req = (struct ip_set_req_macipmap *) data; ++ ++ if (size != sizeof(struct ip_set_req_macipmap)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_macipmap), ++ size); ++ return -EINVAL; ++ } ++ ++ if (req->ip < map->first_ip || req->ip > map->last_ip) ++ return -ERANGE; ++ ++ *hash_ip = req->ip; ++ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u", ++ set->name, HIPQUAD(req->ip), HIPQUAD(*hash_ip)); ++ if (test_bit(IPSET_MACIP_ISSET, ++ (void *) &table[req->ip - map->first_ip].flags)) { ++ return (memcmp(req->ethernet, ++ &table[req->ip - map->first_ip].ethernet, ++ ETH_ALEN) == 0); ++ } else { ++ return (map->flags & IPSET_MACIP_MATCHUNSET ? 1 : 0); ++ } ++} ++ ++static int ++testip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_macipmap *map = ++ (struct ip_set_macipmap *) set->data; ++ struct ip_set_macip *table = ++ (struct ip_set_macip *) map->members; ++ ip_set_ip_t ip; ++ ++ ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr); ++ DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", ++ flags & IPSET_SRC ? "SRC" : "DST", ++ NIPQUAD(skb->nh.iph->saddr), ++ NIPQUAD(skb->nh.iph->daddr)); ++ ++ if (ip < map->first_ip || ip > map->last_ip) ++ return 0; ++ ++ *hash_ip = ip; ++ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u", ++ set->name, HIPQUAD(ip), HIPQUAD(*hash_ip)); ++ if (test_bit(IPSET_MACIP_ISSET, ++ (void *) &table[ip - map->first_ip].flags)) { ++ /* Is mac pointer valid? ++ * If so, compare... */ ++ return (skb->mac.raw >= skb->head ++ && (skb->mac.raw + ETH_HLEN) <= skb->data ++ && (memcmp(eth_hdr(skb)->h_source, ++ &table[ip - map->first_ip].ethernet, ++ ETH_ALEN) == 0)); ++ } else { ++ return (map->flags & IPSET_MACIP_MATCHUNSET ? 1 : 0); ++ } ++} ++ ++/* returns 0 on success */ ++static inline int ++__addip(struct ip_set *set, ++ ip_set_ip_t ip, unsigned char *ethernet, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_macipmap *map = ++ (struct ip_set_macipmap *) set->data; ++ struct ip_set_macip *table = ++ (struct ip_set_macip *) map->members; ++ ++ if (ip < map->first_ip || ip > map->last_ip) ++ return -ERANGE; ++ if (test_and_set_bit(IPSET_MACIP_ISSET, ++ (void *) &table[ip - map->first_ip].flags)) ++ return -EEXIST; ++ ++ *hash_ip = ip; ++ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip)); ++ memcpy(&table[ip - map->first_ip].ethernet, ethernet, ETH_ALEN); ++ return 0; ++} ++ ++static int ++addip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_macipmap *req = ++ (struct ip_set_req_macipmap *) data; ++ ++ if (size != sizeof(struct ip_set_req_macipmap)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_macipmap), ++ size); ++ return -EINVAL; ++ } ++ return __addip(set, req->ip, req->ethernet, hash_ip); ++} ++ ++static int ++addip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ ip_set_ip_t ip; ++ ++ ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr); ++ ++ if (!(skb->mac.raw >= skb->head ++ && (skb->mac.raw + ETH_HLEN) <= skb->data)) ++ return -EINVAL; ++ ++ return __addip(set, ip, eth_hdr(skb)->h_source, hash_ip); ++} ++ ++static inline int ++__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_macipmap *map = ++ (struct ip_set_macipmap *) set->data; ++ struct ip_set_macip *table = ++ (struct ip_set_macip *) map->members; ++ ++ if (ip < map->first_ip || ip > map->last_ip) ++ return -ERANGE; ++ if (!test_and_clear_bit(IPSET_MACIP_ISSET, ++ (void *)&table[ip - map->first_ip].flags)) ++ return -EEXIST; ++ ++ *hash_ip = ip; ++ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip)); ++ return 0; ++} ++ ++static int ++delip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_macipmap *req = ++ (struct ip_set_req_macipmap *) data; ++ ++ if (size != sizeof(struct ip_set_req_macipmap)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_macipmap), ++ size); ++ return -EINVAL; ++ } ++ return __delip(set, req->ip, hash_ip); ++} ++ ++static int ++delip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ return __delip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++} ++ ++static inline size_t members_size(ip_set_id_t from, ip_set_id_t to) ++{ ++ return (size_t)((to - from + 1) * sizeof(struct ip_set_macip)); ++} ++ ++static int create(struct ip_set *set, const void *data, size_t size) ++{ ++ int newbytes; ++ struct ip_set_req_macipmap_create *req = ++ (struct ip_set_req_macipmap_create *) data; ++ struct ip_set_macipmap *map; ++ ++ if (size != sizeof(struct ip_set_req_macipmap_create)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_macipmap_create), ++ size); ++ return -EINVAL; ++ } ++ ++ DP("from %u.%u.%u.%u to %u.%u.%u.%u", ++ HIPQUAD(req->from), HIPQUAD(req->to)); ++ ++ if (req->from > req->to) { ++ DP("bad ip range"); ++ return -ENOEXEC; ++ } ++ ++ if (req->to - req->from > MAX_RANGE) { ++ ip_set_printk("range too big (max %d addresses)", ++ MAX_RANGE); ++ return -ENOEXEC; ++ } ++ ++ map = kmalloc(sizeof(struct ip_set_macipmap), GFP_KERNEL); ++ if (!map) { ++ DP("out of memory for %d bytes", ++ sizeof(struct ip_set_macipmap)); ++ return -ENOMEM; ++ } ++ map->flags = req->flags; ++ map->first_ip = req->from; ++ map->last_ip = req->to; ++ newbytes = members_size(map->first_ip, map->last_ip); ++ map->members = ip_set_malloc(newbytes); ++ if (!map->members) { ++ DP("out of memory for %d bytes", newbytes); ++ kfree(map); ++ return -ENOMEM; ++ } ++ memset(map->members, 0, newbytes); ++ ++ set->data = map; ++ return 0; ++} ++ ++static void destroy(struct ip_set *set) ++{ ++ struct ip_set_macipmap *map = ++ (struct ip_set_macipmap *) set->data; ++ ++ ip_set_free(map->members, members_size(map->first_ip, map->last_ip)); ++ kfree(map); ++ ++ set->data = NULL; ++} ++ ++static void flush(struct ip_set *set) ++{ ++ struct ip_set_macipmap *map = ++ (struct ip_set_macipmap *) set->data; ++ memset(map->members, 0, members_size(map->first_ip, map->last_ip)); ++} ++ ++static void list_header(const struct ip_set *set, void *data) ++{ ++ struct ip_set_macipmap *map = ++ (struct ip_set_macipmap *) set->data; ++ struct ip_set_req_macipmap_create *header = ++ (struct ip_set_req_macipmap_create *) data; ++ ++ DP("list_header %x %x %u", map->first_ip, map->last_ip, ++ map->flags); ++ ++ header->from = map->first_ip; ++ header->to = map->last_ip; ++ header->flags = map->flags; ++} ++ ++static int list_members_size(const struct ip_set *set) ++{ ++ struct ip_set_macipmap *map = ++ (struct ip_set_macipmap *) set->data; ++ ++ return members_size(map->first_ip, map->last_ip); ++} ++ ++static void list_members(const struct ip_set *set, void *data) ++{ ++ struct ip_set_macipmap *map = ++ (struct ip_set_macipmap *) set->data; ++ ++ int bytes = members_size(map->first_ip, map->last_ip); ++ ++ memcpy(data, map->members, bytes); ++} ++ ++static struct ip_set_type ip_set_macipmap = { ++ .typename = SETTYPE_NAME, ++ .typecode = IPSET_TYPE_IP, ++ .protocol_version = IP_SET_PROTOCOL_VERSION, ++ .create = &create, ++ .destroy = &destroy, ++ .flush = &flush, ++ .reqsize = sizeof(struct ip_set_req_macipmap), ++ .addip = &addip, ++ .addip_kernel = &addip_kernel, ++ .delip = &delip, ++ .delip_kernel = &delip_kernel, ++ .testip = &testip, ++ .testip_kernel = &testip_kernel, ++ .header_size = sizeof(struct ip_set_req_macipmap_create), ++ .list_header = &list_header, ++ .list_members_size = &list_members_size, ++ .list_members = &list_members, ++ .me = THIS_MODULE, ++}; ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Jozsef Kadlecsik "); ++MODULE_DESCRIPTION("macipmap type of IP sets"); ++ ++static int __init init(void) ++{ ++ init_max_malloc_size(); ++ return ip_set_register_set_type(&ip_set_macipmap); ++} ++ ++static void __exit fini(void) ++{ ++ /* FIXME: possible race with ip_set_create() */ ++ ip_set_unregister_set_type(&ip_set_macipmap); ++} ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_nethash.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_nethash.c +--- linux-2.6.19.old/net/ipv4/netfilter/ip_set_nethash.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_nethash.c 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,449 @@ ++/* Copyright (C) 2003-2004 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* Kernel module implementing a cidr nethash set */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++#include ++#include ++#include ++#include ++ ++static inline __u32 ++jhash_ip(const struct ip_set_nethash *map, ip_set_ip_t ip) ++{ ++ return jhash_1word(ip, map->initval); ++} ++ ++static inline __u32 ++randhash_ip(const struct ip_set_nethash *map, ip_set_ip_t ip) ++{ ++ return (1 + ip % map->prime); ++} ++ ++static inline __u32 ++hash_id_cidr(struct ip_set_nethash *map, ++ ip_set_ip_t ip, ++ unsigned char cidr, ++ ip_set_ip_t *hash_ip) ++{ ++ __u32 jhash, randhash, id; ++ u_int16_t i; ++ ++ *hash_ip = pack(ip, cidr); ++ jhash = jhash_ip(map, *hash_ip); ++ randhash = randhash_ip(map, *hash_ip); ++ ++ for (i = 0; i < map->probes; i++) { ++ id = (jhash + i * randhash) % map->hashsize; ++ DP("hash key: %u", id); ++ if (map->members[id] == *hash_ip) ++ return id; ++ } ++ return UINT_MAX; ++} ++ ++static inline __u32 ++hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ __u32 id = UINT_MAX; ++ int i; ++ ++ for (i = 0; i < 30 && map->cidr[i]; i++) { ++ id = hash_id_cidr(map, ip, map->cidr[i], hash_ip); ++ if (id != UINT_MAX) ++ break; ++ } ++ return id; ++} ++ ++static inline int ++__testip_cidr(struct ip_set *set, ip_set_ip_t ip, unsigned char cidr, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ ++ return (hash_id_cidr(map, ip, cidr, hash_ip) != UINT_MAX); ++} ++ ++static inline int ++__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) ++{ ++ return (hash_id(set, ip, hash_ip) != UINT_MAX); ++} ++ ++static int ++testip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_nethash *req = ++ (struct ip_set_req_nethash *) data; ++ ++ if (size != sizeof(struct ip_set_req_nethash)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_nethash), ++ size); ++ return -EINVAL; ++ } ++ return (req->cidr == 32 ? __testip(set, req->ip, hash_ip) ++ : __testip_cidr(set, req->ip, req->cidr, hash_ip)); ++} ++ ++static int ++testip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ return __testip(set, ++ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr), ++ hash_ip); ++} ++ ++static inline int ++__addip_base(struct ip_set_nethash *map, ip_set_ip_t ip) ++{ ++ __u32 jhash, randhash, probe; ++ u_int16_t i; ++ ++ jhash = jhash_ip(map, ip); ++ randhash = randhash_ip(map, ip); ++ ++ for (i = 0; i < map->probes; i++) { ++ probe = (jhash + i * randhash) % map->hashsize; ++ if (map->members[probe] == ip) ++ return -EEXIST; ++ if (!map->members[probe]) { ++ map->members[probe] = ip; ++ return 0; ++ } ++ } ++ /* Trigger rehashing */ ++ return -EAGAIN; ++} ++ ++static inline int ++__addip(struct ip_set_nethash *map, ip_set_ip_t ip, unsigned char cidr, ++ ip_set_ip_t *hash_ip) ++{ ++ *hash_ip = pack(ip, cidr); ++ DP("%u.%u.%u.%u/%u, %u.%u.%u.%u", HIPQUAD(ip), cidr, HIPQUAD(*hash_ip)); ++ ++ return __addip_base(map, *hash_ip); ++} ++ ++static void ++update_cidr_sizes(struct ip_set_nethash *map, unsigned char cidr) ++{ ++ unsigned char next; ++ int i; ++ ++ for (i = 0; i < 30 && map->cidr[i]; i++) { ++ if (map->cidr[i] == cidr) { ++ return; ++ } else if (map->cidr[i] < cidr) { ++ next = map->cidr[i]; ++ map->cidr[i] = cidr; ++ cidr = next; ++ } ++ } ++ if (i < 30) ++ map->cidr[i] = cidr; ++} ++ ++static int ++addip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_nethash *req = ++ (struct ip_set_req_nethash *) data; ++ int ret; ++ ++ if (size != sizeof(struct ip_set_req_nethash)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_nethash), ++ size); ++ return -EINVAL; ++ } ++ ret = __addip((struct ip_set_nethash *) set->data, ++ req->ip, req->cidr, hash_ip); ++ ++ if (ret == 0) ++ update_cidr_sizes((struct ip_set_nethash *) set->data, ++ req->cidr); ++ ++ return ret; ++} ++ ++static int ++addip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ int ret = -ERANGE; ++ ip_set_ip_t ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr); ++ ++ if (map->cidr[0]) ++ ret = __addip(map, ip, map->cidr[0], hash_ip); ++ ++ return ret; ++} ++ ++static int retry(struct ip_set *set) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ ip_set_ip_t *members; ++ u_int32_t i, hashsize; ++ unsigned newbytes; ++ int res; ++ struct ip_set_nethash tmp = { ++ .hashsize = map->hashsize, ++ .probes = map->probes, ++ .resize = map->resize ++ }; ++ ++ if (map->resize == 0) ++ return -ERANGE; ++ ++ memcpy(tmp.cidr, map->cidr, 30 * sizeof(unsigned char)); ++ again: ++ res = 0; ++ ++ /* Calculate new parameters */ ++ get_random_bytes(&tmp.initval, 4); ++ hashsize = tmp.hashsize + (tmp.hashsize * map->resize)/100; ++ if (hashsize == tmp.hashsize) ++ hashsize++; ++ tmp.prime = make_prime(hashsize); ++ ++ ip_set_printk("rehashing of set %s triggered: " ++ "hashsize grows from %u to %u", ++ set->name, tmp.hashsize, hashsize); ++ tmp.hashsize = hashsize; ++ ++ newbytes = hashsize * sizeof(ip_set_ip_t); ++ tmp.members = ip_set_malloc_atomic(newbytes); ++ if (!tmp.members) { ++ DP("out of memory for %d bytes", newbytes); ++ return -ENOMEM; ++ } ++ memset(tmp.members, 0, newbytes); ++ ++ write_lock_bh(&set->lock); ++ map = (struct ip_set_nethash *) set->data; /* Play safe */ ++ for (i = 0; i < map->hashsize && res == 0; i++) { ++ if (map->members[i]) ++ res = __addip_base(&tmp, map->members[i]); ++ } ++ if (res) { ++ /* Failure, try again */ ++ write_unlock_bh(&set->lock); ++ ip_set_free(tmp.members, newbytes); ++ goto again; ++ } ++ ++ /* Success at resizing! */ ++ members = map->members; ++ hashsize = map->hashsize; ++ ++ map->initval = tmp.initval; ++ map->prime = tmp.prime; ++ map->hashsize = tmp.hashsize; ++ map->members = tmp.members; ++ write_unlock_bh(&set->lock); ++ ++ ip_set_free(members, hashsize * sizeof(ip_set_ip_t)); ++ ++ return 0; ++} ++ ++static inline int ++__delip(struct ip_set_nethash *map, ip_set_ip_t ip, unsigned char cidr, ++ ip_set_ip_t *hash_ip) ++{ ++ ip_set_ip_t id = hash_id_cidr(map, ip, cidr, hash_ip); ++ ++ if (id == UINT_MAX) ++ return -EEXIST; ++ ++ map->members[id] = 0; ++ return 0; ++} ++ ++static int ++delip(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_req_nethash *req = ++ (struct ip_set_req_nethash *) data; ++ ++ if (size != sizeof(struct ip_set_req_nethash)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_nethash), ++ size); ++ return -EINVAL; ++ } ++ /* TODO: no garbage collection in map->cidr */ ++ return __delip((struct ip_set_nethash *) set->data, ++ req->ip, req->cidr, hash_ip); ++} ++ ++static int ++delip_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_ip) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ int ret = -ERANGE; ++ ip_set_ip_t ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr ++ : skb->nh.iph->daddr); ++ ++ if (map->cidr[0]) ++ ret = __delip(map, ip, map->cidr[0], hash_ip); ++ ++ return ret; ++} ++ ++static int create(struct ip_set *set, const void *data, size_t size) ++{ ++ unsigned newbytes; ++ struct ip_set_req_nethash_create *req = ++ (struct ip_set_req_nethash_create *) data; ++ struct ip_set_nethash *map; ++ ++ if (size != sizeof(struct ip_set_req_nethash_create)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_nethash_create), ++ size); ++ return -EINVAL; ++ } ++ ++ if (req->hashsize < 1) { ++ ip_set_printk("hashsize too small"); ++ return -ENOEXEC; ++ } ++ ++ map = kmalloc(sizeof(struct ip_set_nethash), GFP_KERNEL); ++ if (!map) { ++ DP("out of memory for %d bytes", ++ sizeof(struct ip_set_nethash)); ++ return -ENOMEM; ++ } ++ get_random_bytes(&map->initval, 4); ++ map->prime = make_prime(req->hashsize); ++ map->hashsize = req->hashsize; ++ map->probes = req->probes; ++ map->resize = req->resize; ++ memset(map->cidr, 0, 30 * sizeof(unsigned char)); ++ newbytes = map->hashsize * sizeof(ip_set_ip_t); ++ map->members = ip_set_malloc(newbytes); ++ if (!map->members) { ++ DP("out of memory for %d bytes", newbytes); ++ kfree(map); ++ return -ENOMEM; ++ } ++ memset(map->members, 0, newbytes); ++ ++ set->data = map; ++ return 0; ++} ++ ++static void destroy(struct ip_set *set) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ ++ ip_set_free(map->members, map->hashsize * sizeof(ip_set_ip_t)); ++ kfree(map); ++ ++ set->data = NULL; ++} ++ ++static void flush(struct ip_set *set) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ memset(map->members, 0, map->hashsize * sizeof(ip_set_ip_t)); ++ memset(map->cidr, 0, 30 * sizeof(unsigned char)); ++} ++ ++static void list_header(const struct ip_set *set, void *data) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ struct ip_set_req_nethash_create *header = ++ (struct ip_set_req_nethash_create *) data; ++ ++ header->hashsize = map->hashsize; ++ header->probes = map->probes; ++ header->resize = map->resize; ++} ++ ++static int list_members_size(const struct ip_set *set) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ ++ return (map->hashsize * sizeof(ip_set_ip_t)); ++} ++ ++static void list_members(const struct ip_set *set, void *data) ++{ ++ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data; ++ int bytes = map->hashsize * sizeof(ip_set_ip_t); ++ ++ memcpy(data, map->members, bytes); ++} ++ ++static struct ip_set_type ip_set_nethash = { ++ .typename = SETTYPE_NAME, ++ .typecode = IPSET_TYPE_IP, ++ .protocol_version = IP_SET_PROTOCOL_VERSION, ++ .create = &create, ++ .destroy = &destroy, ++ .flush = &flush, ++ .reqsize = sizeof(struct ip_set_req_nethash), ++ .addip = &addip, ++ .addip_kernel = &addip_kernel, ++ .retry = &retry, ++ .delip = &delip, ++ .delip_kernel = &delip_kernel, ++ .testip = &testip, ++ .testip_kernel = &testip_kernel, ++ .header_size = sizeof(struct ip_set_req_nethash_create), ++ .list_header = &list_header, ++ .list_members_size = &list_members_size, ++ .list_members = &list_members, ++ .me = THIS_MODULE, ++}; ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Jozsef Kadlecsik "); ++MODULE_DESCRIPTION("nethash type of IP sets"); ++ ++static int __init init(void) ++{ ++ return ip_set_register_set_type(&ip_set_nethash); ++} ++ ++static void __exit fini(void) ++{ ++ /* FIXME: possible race with ip_set_create() */ ++ ip_set_unregister_set_type(&ip_set_nethash); ++} ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_set_portmap.c linux-2.6.19.dev/net/ipv4/netfilter/ip_set_portmap.c +--- linux-2.6.19.old/net/ipv4/netfilter/ip_set_portmap.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ip_set_portmap.c 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,325 @@ ++/* Copyright (C) 2003-2004 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* Kernel module implementing a port set type as a bitmap */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++#include ++ ++/* We must handle non-linear skbs */ ++static inline ip_set_ip_t ++get_port(const struct sk_buff *skb, u_int32_t flags) ++{ ++ struct iphdr *iph = skb->nh.iph; ++ u_int16_t offset = ntohs(iph->frag_off) & IP_OFFSET; ++ ++ switch (iph->protocol) { ++ case IPPROTO_TCP: { ++ struct tcphdr tcph; ++ ++ /* See comments at tcp_match in ip_tables.c */ ++ if (offset) ++ return INVALID_PORT; ++ ++ if (skb_copy_bits(skb, skb->nh.iph->ihl*4, &tcph, sizeof(tcph)) < 0) ++ /* No choice either */ ++ return INVALID_PORT; ++ ++ return ntohs(flags & IPSET_SRC ? ++ tcph.source : tcph.dest); ++ } ++ case IPPROTO_UDP: { ++ struct udphdr udph; ++ ++ if (offset) ++ return INVALID_PORT; ++ ++ if (skb_copy_bits(skb, skb->nh.iph->ihl*4, &udph, sizeof(udph)) < 0) ++ /* No choice either */ ++ return INVALID_PORT; ++ ++ return ntohs(flags & IPSET_SRC ? ++ udph.source : udph.dest); ++ } ++ default: ++ return INVALID_PORT; ++ } ++} ++ ++static inline int ++__testport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) ++{ ++ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; ++ ++ if (port < map->first_port || port > map->last_port) ++ return -ERANGE; ++ ++ *hash_port = port; ++ DP("set: %s, port:%u, %u", set->name, port, *hash_port); ++ return !!test_bit(port - map->first_port, map->members); ++} ++ ++static int ++testport(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_port) ++{ ++ struct ip_set_req_portmap *req = ++ (struct ip_set_req_portmap *) data; ++ ++ if (size != sizeof(struct ip_set_req_portmap)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_portmap), ++ size); ++ return -EINVAL; ++ } ++ return __testport(set, req->port, hash_port); ++} ++ ++static int ++testport_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_port) ++{ ++ int res; ++ ip_set_ip_t port = get_port(skb, flags); ++ ++ DP("flag %s port %u", flags & IPSET_SRC ? "SRC" : "DST", port); ++ if (port == INVALID_PORT) ++ return 0; ++ ++ res = __testport(set, port, hash_port); ++ ++ return (res < 0 ? 0 : res); ++} ++ ++static inline int ++__addport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) ++{ ++ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; ++ ++ if (port < map->first_port || port > map->last_port) ++ return -ERANGE; ++ if (test_and_set_bit(port - map->first_port, map->members)) ++ return -EEXIST; ++ ++ *hash_port = port; ++ DP("port %u", port); ++ return 0; ++} ++ ++static int ++addport(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_port) ++{ ++ struct ip_set_req_portmap *req = ++ (struct ip_set_req_portmap *) data; ++ ++ if (size != sizeof(struct ip_set_req_portmap)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_portmap), ++ size); ++ return -EINVAL; ++ } ++ return __addport(set, req->port, hash_port); ++} ++ ++static int ++addport_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_port) ++{ ++ ip_set_ip_t port = get_port(skb, flags); ++ ++ if (port == INVALID_PORT) ++ return -EINVAL; ++ ++ return __addport(set, port, hash_port); ++} ++ ++static inline int ++__delport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) ++{ ++ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; ++ ++ if (port < map->first_port || port > map->last_port) ++ return -ERANGE; ++ if (!test_and_clear_bit(port - map->first_port, map->members)) ++ return -EEXIST; ++ ++ *hash_port = port; ++ DP("port %u", port); ++ return 0; ++} ++ ++static int ++delport(struct ip_set *set, const void *data, size_t size, ++ ip_set_ip_t *hash_port) ++{ ++ struct ip_set_req_portmap *req = ++ (struct ip_set_req_portmap *) data; ++ ++ if (size != sizeof(struct ip_set_req_portmap)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_portmap), ++ size); ++ return -EINVAL; ++ } ++ return __delport(set, req->port, hash_port); ++} ++ ++static int ++delport_kernel(struct ip_set *set, const struct sk_buff *skb, ++ u_int32_t flags, ip_set_ip_t *hash_port) ++{ ++ ip_set_ip_t port = get_port(skb, flags); ++ ++ if (port == INVALID_PORT) ++ return -EINVAL; ++ ++ return __delport(set, port, hash_port); ++} ++ ++static int create(struct ip_set *set, const void *data, size_t size) ++{ ++ int newbytes; ++ struct ip_set_req_portmap_create *req = ++ (struct ip_set_req_portmap_create *) data; ++ struct ip_set_portmap *map; ++ ++ if (size != sizeof(struct ip_set_req_portmap_create)) { ++ ip_set_printk("data length wrong (want %zu, have %zu)", ++ sizeof(struct ip_set_req_portmap_create), ++ size); ++ return -EINVAL; ++ } ++ ++ DP("from %u to %u", req->from, req->to); ++ ++ if (req->from > req->to) { ++ DP("bad port range"); ++ return -ENOEXEC; ++ } ++ ++ if (req->to - req->from > MAX_RANGE) { ++ ip_set_printk("range too big (max %d ports)", ++ MAX_RANGE); ++ return -ENOEXEC; ++ } ++ ++ map = kmalloc(sizeof(struct ip_set_portmap), GFP_KERNEL); ++ if (!map) { ++ DP("out of memory for %d bytes", ++ sizeof(struct ip_set_portmap)); ++ return -ENOMEM; ++ } ++ map->first_port = req->from; ++ map->last_port = req->to; ++ newbytes = bitmap_bytes(req->from, req->to); ++ map->members = kmalloc(newbytes, GFP_KERNEL); ++ if (!map->members) { ++ DP("out of memory for %d bytes", newbytes); ++ kfree(map); ++ return -ENOMEM; ++ } ++ memset(map->members, 0, newbytes); ++ ++ set->data = map; ++ return 0; ++} ++ ++static void destroy(struct ip_set *set) ++{ ++ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; ++ ++ kfree(map->members); ++ kfree(map); ++ ++ set->data = NULL; ++} ++ ++static void flush(struct ip_set *set) ++{ ++ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; ++ memset(map->members, 0, bitmap_bytes(map->first_port, map->last_port)); ++} ++ ++static void list_header(const struct ip_set *set, void *data) ++{ ++ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; ++ struct ip_set_req_portmap_create *header = ++ (struct ip_set_req_portmap_create *) data; ++ ++ DP("list_header %u %u", map->first_port, map->last_port); ++ ++ header->from = map->first_port; ++ header->to = map->last_port; ++} ++ ++static int list_members_size(const struct ip_set *set) ++{ ++ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; ++ ++ return bitmap_bytes(map->first_port, map->last_port); ++} ++ ++static void list_members(const struct ip_set *set, void *data) ++{ ++ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data; ++ int bytes = bitmap_bytes(map->first_port, map->last_port); ++ ++ memcpy(data, map->members, bytes); ++} ++ ++static struct ip_set_type ip_set_portmap = { ++ .typename = SETTYPE_NAME, ++ .typecode = IPSET_TYPE_PORT, ++ .protocol_version = IP_SET_PROTOCOL_VERSION, ++ .create = &create, ++ .destroy = &destroy, ++ .flush = &flush, ++ .reqsize = sizeof(struct ip_set_req_portmap), ++ .addip = &addport, ++ .addip_kernel = &addport_kernel, ++ .delip = &delport, ++ .delip_kernel = &delport_kernel, ++ .testip = &testport, ++ .testip_kernel = &testport_kernel, ++ .header_size = sizeof(struct ip_set_req_portmap_create), ++ .list_header = &list_header, ++ .list_members_size = &list_members_size, ++ .list_members = &list_members, ++ .me = THIS_MODULE, ++}; ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Jozsef Kadlecsik "); ++MODULE_DESCRIPTION("portmap type of IP sets"); ++ ++static int __init init(void) ++{ ++ return ip_set_register_set_type(&ip_set_portmap); ++} ++ ++static void __exit fini(void) ++{ ++ /* FIXME: possible race with ip_set_create() */ ++ ip_set_unregister_set_type(&ip_set_portmap); ++} ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_set.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_set.c +--- linux-2.6.19.old/net/ipv4/netfilter/ipt_set.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_set.c 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,105 @@ ++/* Copyright (C) 2000-2002 Joakim Axelsson ++ * Patrick Schaaf ++ * Martin Josefsson ++ * Copyright (C) 2003-2004 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* Kernel module to match an IP set. */ ++ ++#include ++#include ++#include ++ ++#include ++#include ++#include ++ ++static inline int ++match_set(const struct ipt_set_info *info, ++ const struct sk_buff *skb, ++ int inv) ++{ ++ if (ip_set_testip_kernel(info->index, skb, info->flags)) ++ inv = !inv; ++ return inv; ++} ++ ++static int ++match(const struct sk_buff *skb, ++ const struct net_device *in, ++ const struct net_device *out, ++ const struct xt_match *match, ++ const void *matchinfo, ++ int offset, ++ unsigned int protoff, ++ int *hotdrop) ++{ ++ const struct ipt_set_info_match *info = matchinfo; ++ ++ return match_set(&info->match_set, ++ skb, ++ info->match_set.flags[0] & IPSET_MATCH_INV); ++} ++ ++static int ++checkentry(const char *tablename, ++ const void *ip, ++ const struct xt_match *match, ++ void *matchinfo, ++ unsigned int hook_mask) ++{ ++ struct ipt_set_info_match *info = ++ (struct ipt_set_info_match *) matchinfo; ++ ip_set_id_t index; ++ ++ index = ip_set_get_byindex(info->match_set.index); ++ ++ if (index == IP_SET_INVALID_ID) { ++ ip_set_printk("Cannot find set indentified by id %u to match", ++ info->match_set.index); ++ return 0; /* error */ ++ } ++ if (info->match_set.flags[IP_SET_MAX_BINDINGS] != 0) { ++ ip_set_printk("That's nasty!"); ++ return 0; /* error */ ++ } ++ ++ return 1; ++} ++ ++static void destroy(const struct xt_match *match, void *matchinfo) ++{ ++ struct ipt_set_info_match *info = matchinfo; ++ ++ ip_set_put(info->match_set.index); ++} ++ ++static struct ipt_match set_match = { ++ .name = "set", ++ .match = &match, ++ .matchsize = sizeof(struct ipt_set_info_match), ++ .checkentry = &checkentry, ++ .destroy = &destroy, ++ .me = THIS_MODULE ++}; ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Jozsef Kadlecsik "); ++MODULE_DESCRIPTION("iptables IP set match module"); ++ ++static int __init init(void) ++{ ++ return ipt_register_match(&set_match); ++} ++ ++static void __exit fini(void) ++{ ++ ipt_unregister_match(&set_match); ++} ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_SET.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_SET.c +--- linux-2.6.19.old/net/ipv4/netfilter/ipt_SET.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_SET.c 2006-12-14 03:13:43.000000000 +0100 +@@ -0,0 +1,120 @@ ++/* Copyright (C) 2000-2002 Joakim Axelsson ++ * Patrick Schaaf ++ * Martin Josefsson ++ * Copyright (C) 2003-2004 Jozsef Kadlecsik ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* ipt_SET.c - netfilter target to manipulate IP sets */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++static unsigned int ++target(struct sk_buff **pskb, ++ const struct net_device *in, ++ const struct net_device *out, ++ unsigned int hooknum, ++ const struct xt_target *target, ++ const void *targinfo) ++{ ++ const struct ipt_set_info_target *info = targinfo; ++ ++ if (info->add_set.index != IP_SET_INVALID_ID) ++ ip_set_addip_kernel(info->add_set.index, ++ *pskb, ++ info->add_set.flags); ++ if (info->del_set.index != IP_SET_INVALID_ID) ++ ip_set_delip_kernel(info->del_set.index, ++ *pskb, ++ info->del_set.flags); ++ ++ return IPT_CONTINUE; ++} ++ ++static int ++checkentry(const char *tablename, ++ const void *e, ++ const struct xt_target *target, ++ void *targinfo, ++ unsigned int hook_mask) ++{ ++ struct ipt_set_info_target *info = ++ (struct ipt_set_info_target *) targinfo; ++ ip_set_id_t index; ++ ++ if (info->add_set.index != IP_SET_INVALID_ID) { ++ index = ip_set_get_byindex(info->add_set.index); ++ if (index == IP_SET_INVALID_ID) { ++ ip_set_printk("cannot find add_set index %u as target", ++ info->add_set.index); ++ return 0; /* error */ ++ } ++ } ++ ++ if (info->del_set.index != IP_SET_INVALID_ID) { ++ index = ip_set_get_byindex(info->del_set.index); ++ if (index == IP_SET_INVALID_ID) { ++ ip_set_printk("cannot find del_set index %u as target", ++ info->del_set.index); ++ return 0; /* error */ ++ } ++ } ++ if (info->add_set.flags[IP_SET_MAX_BINDINGS] != 0 ++ || info->del_set.flags[IP_SET_MAX_BINDINGS] != 0) { ++ ip_set_printk("That's nasty!"); ++ return 0; /* error */ ++ } ++ ++ return 1; ++} ++ ++static void destroy(const struct xt_target *target, void *targetinfo) ++{ ++ struct ipt_set_info_target *info = targetinfo; ++ ++ if (info->add_set.index != IP_SET_INVALID_ID) ++ ip_set_put(info->add_set.index); ++ if (info->del_set.index != IP_SET_INVALID_ID) ++ ip_set_put(info->del_set.index); ++} ++ ++static struct ipt_target SET_target = { ++ .name = "SET", ++ .target = target, ++ .targetsize = sizeof(struct ipt_set_info_target), ++ .checkentry = checkentry, ++ .destroy = destroy, ++ .me = THIS_MODULE ++}; ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Jozsef Kadlecsik "); ++MODULE_DESCRIPTION("iptables IP set target module"); ++ ++static int __init init(void) ++{ ++ return ipt_register_target(&SET_target); ++} ++ ++static void __exit fini(void) ++{ ++ ipt_unregister_target(&SET_target); ++} ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig +--- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:41.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:43.000000000 +0100 +@@ -647,5 +647,106 @@ + Allows altering the ARP packet payload: source and destination + hardware and network addresses. + ++config IP_NF_SET ++ tristate "IP set support" ++ depends on INET && NETFILTER ++ help ++ This option adds IP set support to the kernel. ++ In order to define and use sets, you need the userspace utility ++ ipset(8). ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config IP_NF_SET_MAX ++ int "Maximum number of IP sets" ++ default 256 ++ range 2 65534 ++ depends on IP_NF_SET ++ help ++ You can define here default value of the maximum number ++ of IP sets for the kernel. ++ ++ The value can be overriden by the 'max_sets' module ++ parameter of the 'ip_set' module. ++ ++config IP_NF_SET_HASHSIZE ++ int "Hash size for bindings of IP sets" ++ default 1024 ++ depends on IP_NF_SET ++ help ++ You can define here default value of the hash size for ++ bindings of IP sets. ++ ++ The value can be overriden by the 'hash_size' module ++ parameter of the 'ip_set' module. ++ ++config IP_NF_SET_IPMAP ++ tristate "ipmap set support" ++ depends on IP_NF_SET ++ help ++ This option adds the ipmap set type support. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config IP_NF_SET_MACIPMAP ++ tristate "macipmap set support" ++ depends on IP_NF_SET ++ help ++ This option adds the macipmap set type support. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config IP_NF_SET_PORTMAP ++ tristate "portmap set support" ++ depends on IP_NF_SET ++ help ++ This option adds the portmap set type support. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config IP_NF_SET_IPHASH ++ tristate "iphash set support" ++ depends on IP_NF_SET ++ help ++ This option adds the iphash set type support. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config IP_NF_SET_NETHASH ++ tristate "nethash set support" ++ depends on IP_NF_SET ++ help ++ This option adds the nethash set type support. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config IP_NF_SET_IPTREE ++ tristate "iptree set support" ++ depends on IP_NF_SET ++ help ++ This option adds the iptree set type support. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config IP_NF_MATCH_SET ++ tristate "set match support" ++ depends on IP_NF_SET ++ help ++ Set matching matches against given IP sets. ++ You need the ipset utility to create and set up the sets. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config IP_NF_TARGET_SET ++ tristate "SET target support" ++ depends on IP_NF_SET ++ help ++ The SET target makes possible to add/delete entries ++ in IP sets. ++ You need the ipset utility to create and set up the sets. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++ + endmenu + +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile +--- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:41.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:43.000000000 +0100 +@@ -54,6 +54,7 @@ + + # matches + obj-$(CONFIG_IP_NF_MATCH_HASHLIMIT) += ipt_hashlimit.o ++obj-$(CONFIG_IP_NF_MATCH_SET) += ipt_set.o + obj-$(CONFIG_IP_NF_MATCH_IPRANGE) += ipt_iprange.o + obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o + obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o +@@ -77,6 +78,17 @@ + obj-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG.o + obj-$(CONFIG_IP_NF_TARGET_ULOG) += ipt_ULOG.o + obj-$(CONFIG_IP_NF_TARGET_TCPMSS) += ipt_TCPMSS.o ++obj-$(CONFIG_IP_NF_TARGET_SET) += ipt_SET.o ++ ++# sets ++obj-$(CONFIG_IP_NF_SET) += ip_set.o ++obj-$(CONFIG_IP_NF_SET_IPMAP) += ip_set_ipmap.o ++obj-$(CONFIG_IP_NF_SET_PORTMAP) += ip_set_portmap.o ++obj-$(CONFIG_IP_NF_SET_MACIPMAP) += ip_set_macipmap.o ++obj-$(CONFIG_IP_NF_SET_IPHASH) += ip_set_iphash.o ++obj-$(CONFIG_IP_NF_SET_NETHASH) += ip_set_nethash.o ++obj-$(CONFIG_IP_NF_SET_IPTREE) += ip_set_iptree.o ++ + obj-$(CONFIG_IP_NF_TARGET_CLUSTERIP) += ipt_CLUSTERIP.o + obj-$(CONFIG_IP_NF_TARGET_TTL) += ipt_TTL.o + diff --git a/target/linux/generic-2.6/patches/140-netfilter_time.patch b/target/linux/generic-2.6/patches/140-netfilter_time.patch new file mode 100644 index 0000000000..d217157d78 --- /dev/null +++ b/target/linux/generic-2.6/patches/140-netfilter_time.patch @@ -0,0 +1,241 @@ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_time.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_time.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_time.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_time.h 2006-12-14 03:13:45.000000000 +0100 +@@ -0,0 +1,18 @@ ++#ifndef __ipt_time_h_included__ ++#define __ipt_time_h_included__ ++ ++ ++struct ipt_time_info { ++ u_int8_t days_match; /* 1 bit per day. -SMTWTFS */ ++ u_int16_t time_start; /* 0 < time_start < 23*60+59 = 1439 */ ++ u_int16_t time_stop; /* 0:0 < time_stat < 23:59 */ ++ ++ /* FIXME: Keep this one for userspace iptables binary compability: */ ++ u_int8_t kerneltime; /* ignore skb time (and use kerneltime) or not. */ ++ ++ time_t date_start; ++ time_t date_stop; ++}; ++ ++ ++#endif /* __ipt_time_h_included__ */ +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_time.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_time.c +--- linux-2.6.19.old/net/ipv4/netfilter/ipt_time.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_time.c 2006-12-14 03:13:45.000000000 +0100 +@@ -0,0 +1,178 @@ ++/* ++ This is a module which is used for time matching ++ It is using some modified code from dietlibc (localtime() function) ++ that you can find at http://www.fefe.de/dietlibc/ ++ This file is distributed under the terms of the GNU General Public ++ License (GPL). Copies of the GPL can be obtained from: ftp://prep.ai.mit.edu/pub/gnu/GPL ++ 2001-05-04 Fabrice MARIE : initial development. ++ 2001-21-05 Fabrice MARIE : bug fix in the match code, ++ thanks to "Zeng Yu" for bug report. ++ 2001-26-09 Fabrice MARIE : force the match to be in LOCAL_IN or PRE_ROUTING only. ++ 2001-30-11 Fabrice : added the possibility to use the match in FORWARD/OUTPUT with a little hack, ++ added Nguyen Dang Phuoc Dong patch to support timezones. ++ 2004-05-02 Fabrice : added support for date matching, from an idea of Fabien COELHO. ++*/ ++ ++#include ++#include ++#include ++#include ++#include ++ ++MODULE_AUTHOR("Fabrice MARIE "); ++MODULE_DESCRIPTION("Match arrival timestamp/date"); ++MODULE_LICENSE("GPL"); ++ ++struct tm ++{ ++ int tm_sec; /* Seconds. [0-60] (1 leap second) */ ++ int tm_min; /* Minutes. [0-59] */ ++ int tm_hour; /* Hours. [0-23] */ ++ int tm_mday; /* Day. [1-31] */ ++ int tm_mon; /* Month. [0-11] */ ++ int tm_year; /* Year - 1900. */ ++ int tm_wday; /* Day of week. [0-6] */ ++ int tm_yday; /* Days in year.[0-365] */ ++ int tm_isdst; /* DST. [-1/0/1]*/ ++ ++ long int tm_gmtoff; /* we don't care, we count from GMT */ ++ const char *tm_zone; /* we don't care, we count from GMT */ ++}; ++ ++void ++localtime(const u32 time, struct tm *r); ++ ++static int ++match(const struct sk_buff *skb, ++ const struct net_device *in, ++ const struct net_device *out, ++ const struct xt_match *match, ++ const void *matchinfo, ++ int offset, ++ unsigned int protoff, ++ int *hotdrop) ++{ ++ const struct ipt_time_info *info = matchinfo; /* match info for rule */ ++ struct tm currenttime; /* time human readable */ ++ u_int8_t days_of_week[7] = {64, 32, 16, 8, 4, 2, 1}; ++ u_int16_t packet_time; ++ ++ /* We might not have a timestamp, get one */ ++ if (skb->tstamp.off_sec == 0) ++ __net_timestamp((struct sk_buff *)skb); ++ ++ /* First we make sure we are in the date start-stop boundaries */ ++ if ((skb->tstamp.off_sec < info->date_start) || (skb->tstamp.off_sec > info->date_stop)) ++ return 0; /* We are outside the date boundaries */ ++ ++ /* Transform the timestamp of the packet, in a human readable form */ ++ localtime(skb->tstamp.off_sec, ¤ttime); ++ ++ /* check if we match this timestamp, we start by the days... */ ++ if ((days_of_week[currenttime.tm_wday] & info->days_match) != days_of_week[currenttime.tm_wday]) ++ return 0; /* the day doesn't match */ ++ ++ /* ... check the time now */ ++ packet_time = (currenttime.tm_hour * 60) + currenttime.tm_min; ++ if ((packet_time < info->time_start) || (packet_time > info->time_stop)) ++ return 0; ++ ++ /* here we match ! */ ++ return 1; ++} ++ ++static int ++checkentry(const char *tablename, ++ const void *ip, ++ const struct xt_match *match, ++ void *matchinfo, ++ unsigned int hook_mask) ++{ ++ struct ipt_time_info *info = matchinfo; /* match info for rule */ ++ ++ /* First, check that we are in the correct hooks */ ++ if (hook_mask ++ & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_IN) | (1 << NF_IP_FORWARD) | (1 << NF_IP_LOCAL_OUT))) ++ { ++ printk("ipt_time: error, only valid for PRE_ROUTING, LOCAL_IN, FORWARD and OUTPUT)\n"); ++ return 0; ++ } ++ ++ /* Now check the coherence of the data ... */ ++ if ((info->time_start > 1439) || /* 23*60+59 = 1439*/ ++ (info->time_stop > 1439)) ++ { ++ printk(KERN_WARNING "ipt_time: invalid argument\n"); ++ return 0; ++ } ++ ++ return 1; ++} ++ ++static struct ipt_match time_match = { ++ .name = "time", ++ .match = &match, ++ .matchsize = sizeof(struct ipt_time_info), ++ .checkentry = &checkentry, ++ .me = THIS_MODULE ++}; ++ ++static int __init init(void) ++{ ++ printk("ipt_time loading\n"); ++ return ipt_register_match(&time_match); ++} ++ ++static void __exit fini(void) ++{ ++ ipt_unregister_match(&time_match); ++ printk("ipt_time unloaded\n"); ++} ++ ++module_init(init); ++module_exit(fini); ++ ++ ++/* The part below is borowed and modified from dietlibc */ ++ ++/* seconds per day */ ++#define SPD 24*60*60 ++ ++void ++localtime(const u32 time, struct tm *r) { ++ u32 i, timep; ++ extern struct timezone sys_tz; ++ const unsigned int __spm[12] = ++ { 0, ++ (31), ++ (31+28), ++ (31+28+31), ++ (31+28+31+30), ++ (31+28+31+30+31), ++ (31+28+31+30+31+30), ++ (31+28+31+30+31+30+31), ++ (31+28+31+30+31+30+31+31), ++ (31+28+31+30+31+30+31+31+30), ++ (31+28+31+30+31+30+31+31+30+31), ++ (31+28+31+30+31+30+31+31+30+31+30), ++ }; ++ register u32 work; ++ ++ timep = time - (sys_tz.tz_minuteswest * 60); ++ work=timep%(SPD); ++ r->tm_sec=work%60; work/=60; ++ r->tm_min=work%60; r->tm_hour=work/60; ++ work=timep/(SPD); ++ r->tm_wday=(4+work)%7; ++ for (i=1970; ; ++i) { ++ register time_t k= (!(i%4) && ((i%100) || !(i%400)))?366:365; ++ if (work>k) ++ work-=k; ++ else ++ break; ++ } ++ r->tm_year=i-1900; ++ for (i=11; i && __spm[i]>work; --i) ; ++ r->tm_mon=i; ++ r->tm_mday=work-__spm[i]+1; ++} +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig +--- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:45.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:45.000000000 +0100 +@@ -263,6 +263,22 @@ + + To compile it as a module, choose M here. If unsure, say N. + ++ ++config IP_NF_MATCH_TIME ++ tristate 'TIME match support' ++ depends on IP_NF_IPTABLES ++ help ++ This option adds a `time' match, which allows you ++ to match based on the packet arrival time/date ++ (arrival time/date at the machine which netfilter is running on) or ++ departure time/date (for locally generated packets). ++ ++ If you say Y here, try iptables -m time --help for more information. ++ If you want to compile it as a module, say M here and read ++ ++ Documentation/modules.txt. If unsure, say `N'. ++ ++ + config IP_NF_MATCH_RECENT + tristate "recent match support" + depends on IP_NF_IPTABLES +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile +--- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:45.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:45.000000000 +0100 +@@ -58,6 +58,7 @@ + obj-$(CONFIG_IP_NF_MATCH_IPRANGE) += ipt_iprange.o + obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o + obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o ++obj-$(CONFIG_IP_NF_MATCH_TIME) += ipt_time.o + obj-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent.o + obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn.o + obj-$(CONFIG_IP_NF_MATCH_AH) += ipt_ah.o diff --git a/target/linux/generic-2.6/patches/150-netfilter_imq.patch b/target/linux/generic-2.6/patches/150-netfilter_imq.patch new file mode 100644 index 0000000000..559d80fbc8 --- /dev/null +++ b/target/linux/generic-2.6/patches/150-netfilter_imq.patch @@ -0,0 +1,868 @@ +diff -urN linux-2.6.19.old/drivers/net/imq.c linux-2.6.19.dev/drivers/net/imq.c +--- linux-2.6.19.old/drivers/net/imq.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/drivers/net/imq.c 2006-12-14 03:13:47.000000000 +0100 +@@ -0,0 +1,400 @@ ++/* ++ * Pseudo-driver for the intermediate queue device. ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version ++ * 2 of the License, or (at your option) any later version. ++ * ++ * Authors: Patrick McHardy, ++ * ++ * The first version was written by Martin Devera, ++ * ++ * Credits: Jan Rafaj ++ * - Update patch to 2.4.21 ++ * Sebastian Strollo ++ * - Fix "Dead-loop on netdevice imq"-issue ++ * Marcel Sebek ++ * - Update to 2.6.2-rc1 ++ * ++ * After some time of inactivity there is a group taking care ++ * of IMQ again: http://www.linuximq.net ++ * ++ * ++ * 2004/06/30 - New version of IMQ patch to kernels <=2.6.7 including ++ * the following changes: ++ * ++ * - Correction of ipv6 support "+"s issue (Hasso Tepper) ++ * - Correction of imq_init_devs() issue that resulted in ++ * kernel OOPS unloading IMQ as module (Norbert Buchmuller) ++ * - Addition of functionality to choose number of IMQ devices ++ * during kernel config (Andre Correa) ++ * - Addition of functionality to choose how IMQ hooks on ++ * PRE and POSTROUTING (after or before NAT) (Andre Correa) ++ * - Cosmetic corrections (Norbert Buchmuller) (Andre Correa) ++ * ++ * ++ * 2005/12/16 - IMQ versions between 2.6.7 and 2.6.13 were ++ * released with almost no problems. 2.6.14-x was released ++ * with some important changes: nfcache was removed; After ++ * some weeks of trouble we figured out that some IMQ fields ++ * in skb were missing in skbuff.c - skb_clone and copy_skb_header. ++ * These functions are correctly patched by this new patch version. ++ * ++ * Thanks for all who helped to figure out all the problems with ++ * 2.6.14.x: Patrick McHardy, Rune Kock, VeNoMouS, Max CtRiX, ++ * Kevin Shanahan, Richard Lucassen, Valery Dachev (hopefully ++ * I didn't forget anybody). I apologize again for my lack of time. ++ * ++ * More info at: http://www.linuximq.net/ (Andre Correa) ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) ++ #include ++#endif ++#include ++#include ++ ++static nf_hookfn imq_nf_hook; ++ ++static struct nf_hook_ops imq_ingress_ipv4 = { ++ .hook = imq_nf_hook, ++ .owner = THIS_MODULE, ++ .pf = PF_INET, ++ .hooknum = NF_IP_PRE_ROUTING, ++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB) ++ .priority = NF_IP_PRI_MANGLE + 1 ++#else ++ .priority = NF_IP_PRI_NAT_DST + 1 ++#endif ++}; ++ ++static struct nf_hook_ops imq_egress_ipv4 = { ++ .hook = imq_nf_hook, ++ .owner = THIS_MODULE, ++ .pf = PF_INET, ++ .hooknum = NF_IP_POST_ROUTING, ++#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA) ++ .priority = NF_IP_PRI_LAST ++#else ++ .priority = NF_IP_PRI_NAT_SRC - 1 ++#endif ++}; ++ ++#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) ++static struct nf_hook_ops imq_ingress_ipv6 = { ++ .hook = imq_nf_hook, ++ .owner = THIS_MODULE, ++ .pf = PF_INET6, ++ .hooknum = NF_IP6_PRE_ROUTING, ++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB) ++ .priority = NF_IP6_PRI_MANGLE + 1 ++#else ++ .priority = NF_IP6_PRI_NAT_DST + 1 ++#endif ++}; ++ ++static struct nf_hook_ops imq_egress_ipv6 = { ++ .hook = imq_nf_hook, ++ .owner = THIS_MODULE, ++ .pf = PF_INET6, ++ .hooknum = NF_IP6_POST_ROUTING, ++#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA) ++ .priority = NF_IP6_PRI_LAST ++#else ++ .priority = NF_IP6_PRI_NAT_SRC - 1 ++#endif ++}; ++#endif ++ ++#if defined(CONFIG_IMQ_NUM_DEVS) ++static unsigned int numdevs = CONFIG_IMQ_NUM_DEVS; ++#else ++static unsigned int numdevs = 2; ++#endif ++ ++static struct net_device *imq_devs; ++ ++static struct net_device_stats *imq_get_stats(struct net_device *dev) ++{ ++ return (struct net_device_stats *)dev->priv; ++} ++ ++/* called for packets kfree'd in qdiscs at places other than enqueue */ ++static void imq_skb_destructor(struct sk_buff *skb) ++{ ++ struct nf_info *info = skb->nf_info; ++ ++ if (info) { ++ if (info->indev) ++ dev_put(info->indev); ++ if (info->outdev) ++ dev_put(info->outdev); ++ kfree(info); ++ } ++} ++ ++static int imq_dev_xmit(struct sk_buff *skb, struct net_device *dev) ++{ ++ struct net_device_stats *stats = (struct net_device_stats*) dev->priv; ++ ++ stats->tx_bytes += skb->len; ++ stats->tx_packets++; ++ ++ skb->imq_flags = 0; ++ skb->destructor = NULL; ++ ++ dev->trans_start = jiffies; ++ nf_reinject(skb, skb->nf_info, NF_ACCEPT); ++ return 0; ++} ++ ++static int imq_nf_queue(struct sk_buff *skb, struct nf_info *info, unsigned queue_num, void *data) ++{ ++ struct net_device *dev; ++ struct net_device_stats *stats; ++ struct sk_buff *skb2 = NULL; ++ struct Qdisc *q; ++ unsigned int index = skb->imq_flags&IMQ_F_IFMASK; ++ int ret = -1; ++ ++ if (index > numdevs) ++ return -1; ++ ++ dev = imq_devs + index; ++ if (!(dev->flags & IFF_UP)) { ++ skb->imq_flags = 0; ++ nf_reinject(skb, info, NF_ACCEPT); ++ return 0; ++ } ++ dev->last_rx = jiffies; ++ ++ if (skb->destructor) { ++ skb2 = skb; ++ skb = skb_clone(skb, GFP_ATOMIC); ++ if (!skb) ++ return -1; ++ } ++ skb->nf_info = info; ++ ++ stats = (struct net_device_stats *)dev->priv; ++ stats->rx_bytes+= skb->len; ++ stats->rx_packets++; ++ ++ spin_lock_bh(&dev->queue_lock); ++ q = dev->qdisc; ++ if (q->enqueue) { ++ q->enqueue(skb_get(skb), q); ++ if (skb_shared(skb)) { ++ skb->destructor = imq_skb_destructor; ++ kfree_skb(skb); ++ ret = 0; ++ } ++ } ++ if (spin_is_locked(&dev->_xmit_lock)) ++ netif_schedule(dev); ++ else ++ qdisc_run(dev); ++ ++ spin_unlock_bh(&dev->queue_lock); ++ ++ if (skb2) ++ kfree_skb(ret ? skb : skb2); ++ ++ return ret; ++} ++ ++static struct nf_queue_handler nfqh = { ++ .name = "imq", ++ .outfn = imq_nf_queue, ++}; ++ ++static unsigned int imq_nf_hook(unsigned int hook, struct sk_buff **pskb, ++ const struct net_device *indev, ++ const struct net_device *outdev, ++ int (*okfn)(struct sk_buff *)) ++{ ++ if ((*pskb)->imq_flags & IMQ_F_ENQUEUE) ++ return NF_QUEUE; ++ ++ return NF_ACCEPT; ++} ++ ++ ++static int __init imq_init_hooks(void) ++{ ++ int err; ++ ++ err = nf_register_queue_handler(PF_INET, &nfqh); ++ if (err > 0) ++ goto err1; ++ if ((err = nf_register_hook(&imq_ingress_ipv4))) ++ goto err2; ++ if ((err = nf_register_hook(&imq_egress_ipv4))) ++ goto err3; ++#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) ++ if ((err = nf_register_queue_handler(PF_INET6, &nfqh))) ++ goto err4; ++ if ((err = nf_register_hook(&imq_ingress_ipv6))) ++ goto err5; ++ if ((err = nf_register_hook(&imq_egress_ipv6))) ++ goto err6; ++#endif ++ ++ return 0; ++ ++#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) ++err6: ++ nf_unregister_hook(&imq_ingress_ipv6); ++err5: ++ nf_unregister_queue_handler(PF_INET6); ++err4: ++ nf_unregister_hook(&imq_egress_ipv6); ++#endif ++err3: ++ nf_unregister_hook(&imq_ingress_ipv4); ++err2: ++ nf_unregister_queue_handler(PF_INET); ++err1: ++ return err; ++} ++ ++static void __exit imq_unhook(void) ++{ ++ nf_unregister_hook(&imq_ingress_ipv4); ++ nf_unregister_hook(&imq_egress_ipv4); ++ nf_unregister_queue_handler(PF_INET); ++#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) ++ nf_unregister_hook(&imq_ingress_ipv6); ++ nf_unregister_hook(&imq_egress_ipv6); ++ nf_unregister_queue_handler(PF_INET6); ++#endif ++} ++ ++static int __init imq_dev_init(struct net_device *dev) ++{ ++ dev->hard_start_xmit = imq_dev_xmit; ++ dev->type = ARPHRD_VOID; ++ dev->mtu = 1500; ++ dev->tx_queue_len = 30; ++ dev->flags = IFF_NOARP; ++ dev->priv = kmalloc(sizeof(struct net_device_stats), GFP_KERNEL); ++ if (dev->priv == NULL) ++ return -ENOMEM; ++ memset(dev->priv, 0, sizeof(struct net_device_stats)); ++ dev->get_stats = imq_get_stats; ++ ++ return 0; ++} ++ ++static void imq_dev_uninit(struct net_device *dev) ++{ ++ kfree(dev->priv); ++} ++ ++static int __init imq_init_devs(void) ++{ ++ struct net_device *dev; ++ int i,j; ++ j = numdevs; ++ ++ if (!numdevs || numdevs > IMQ_MAX_DEVS) { ++ printk(KERN_ERR "IMQ: numdevs has to be betweed 1 and %u\n", ++ IMQ_MAX_DEVS); ++ return -EINVAL; ++ } ++ ++ imq_devs = kmalloc(sizeof(struct net_device) * numdevs, GFP_KERNEL); ++ if (!imq_devs) ++ return -ENOMEM; ++ memset(imq_devs, 0, sizeof(struct net_device) * numdevs); ++ ++ /* we start counting at zero */ ++ numdevs--; ++ ++ for (i = 0, dev = imq_devs; i <= numdevs; i++, dev++) { ++ SET_MODULE_OWNER(dev); ++ strcpy(dev->name, "imq%d"); ++ dev->init = imq_dev_init; ++ dev->uninit = imq_dev_uninit; ++ ++ if (register_netdev(dev) < 0) ++ goto err_register; ++ } ++ printk(KERN_INFO "IMQ starting with %u devices...\n", j); ++ return 0; ++ ++err_register: ++ for (; i; i--) ++ unregister_netdev(--dev); ++ kfree(imq_devs); ++ return -EIO; ++} ++ ++static void imq_cleanup_devs(void) ++{ ++ int i; ++ struct net_device *dev = imq_devs; ++ ++ for (i = 0; i <= numdevs; i++) ++ unregister_netdev(dev++); ++ ++ kfree(imq_devs); ++} ++ ++static int __init imq_init_module(void) ++{ ++ int err; ++ ++ if ((err = imq_init_devs())) { ++ printk(KERN_ERR "IMQ: Error trying imq_init_devs()\n"); ++ return err; ++ } ++ if ((err = imq_init_hooks())) { ++ printk(KERN_ERR "IMQ: Error trying imq_init_hooks()\n"); ++ imq_cleanup_devs(); ++ return err; ++ } ++ ++ printk(KERN_INFO "IMQ driver loaded successfully.\n"); ++ ++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB) ++ printk(KERN_INFO "\tHooking IMQ before NAT on PREROUTING.\n"); ++#else ++ printk(KERN_INFO "\tHooking IMQ after NAT on PREROUTING.\n"); ++#endif ++#if defined(CONFIG_IMQ_BEHAVIOR_AB) || defined(CONFIG_IMQ_BEHAVIOR_BB) ++ printk(KERN_INFO "\tHooking IMQ before NAT on POSTROUTING.\n"); ++#else ++ printk(KERN_INFO "\tHooking IMQ after NAT on POSTROUTING.\n"); ++#endif ++ ++ return 0; ++} ++ ++static void __exit imq_cleanup_module(void) ++{ ++ imq_unhook(); ++ imq_cleanup_devs(); ++ printk(KERN_INFO "IMQ driver unloaded successfully.\n"); ++} ++ ++ ++module_init(imq_init_module); ++module_exit(imq_cleanup_module); ++ ++module_param(numdevs, int, 0); ++MODULE_PARM_DESC(numdevs, "number of IMQ devices (how many imq* devices will be created)"); ++MODULE_AUTHOR("http://www.linuximq.net"); ++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information."); ++MODULE_LICENSE("GPL"); +diff -urN linux-2.6.19.old/drivers/net/Kconfig linux-2.6.19.dev/drivers/net/Kconfig +--- linux-2.6.19.old/drivers/net/Kconfig 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/drivers/net/Kconfig 2006-12-14 03:13:47.000000000 +0100 +@@ -96,6 +96,129 @@ + To compile this driver as a module, choose M here: the module + will be called eql. If unsure, say N. + ++config IMQ ++ tristate "IMQ (intermediate queueing device) support" ++ depends on NETDEVICES && NETFILTER ++ ---help--- ++ The IMQ device(s) is used as placeholder for QoS queueing disciplines. ++ Every packet entering/leaving the IP stack can be directed through ++ the IMQ device where it's enqueued/dequeued to the attached qdisc. ++ This allows you to treat network devices as classes and distribute ++ bandwidth among them. Iptables is used to specify through which IMQ ++ device, if any, packets travel. ++ ++ More information at: http://www.linuximq.net/ ++ ++ To compile this driver as a module, choose M here: the module ++ will be called imq. If unsure, say N. ++ ++choice ++ prompt "IMQ behavior (PRE/POSTROUTING)" ++ depends on IMQ ++ default IMQ_BEHAVIOR_BA ++ help ++ ++ This settings defines how IMQ behaves in respect to its ++ hooking in PREROUTING and POSTROUTING. ++ ++ IMQ can work in any of the following ways: ++ ++ PREROUTING | POSTROUTING ++ -----------------|------------------- ++ #1 After NAT | After NAT ++ #2 After NAT | Before NAT ++ #3 Before NAT | After NAT ++ #4 Before NAT | Before NAT ++ ++ The default behavior is to hook before NAT on PREROUTING ++ and after NAT on POSTROUTING (#3). ++ ++ This settings are specially usefull when trying to use IMQ ++ to shape NATed clients. ++ ++ More information can be found at: www.linuximq.net ++ ++ If not sure leave the default settings alone. ++ ++config IMQ_BEHAVIOR_AA ++ bool "IMQ AA" ++ help ++ This settings defines how IMQ behaves in respect to its ++ hooking in PREROUTING and POSTROUTING. ++ ++ Choosing this option will make IMQ hook like this: ++ ++ PREROUTING: After NAT ++ POSTROUTING: After NAT ++ ++ More information can be found at: www.linuximq.net ++ ++ If not sure leave the default settings alone. ++ ++config IMQ_BEHAVIOR_AB ++ bool "IMQ AB" ++ help ++ This settings defines how IMQ behaves in respect to its ++ hooking in PREROUTING and POSTROUTING. ++ ++ Choosing this option will make IMQ hook like this: ++ ++ PREROUTING: After NAT ++ POSTROUTING: Before NAT ++ ++ More information can be found at: www.linuximq.net ++ ++ If not sure leave the default settings alone. ++ ++config IMQ_BEHAVIOR_BA ++ bool "IMQ BA" ++ help ++ This settings defines how IMQ behaves in respect to its ++ hooking in PREROUTING and POSTROUTING. ++ ++ Choosing this option will make IMQ hook like this: ++ ++ PREROUTING: Before NAT ++ POSTROUTING: After NAT ++ ++ More information can be found at: www.linuximq.net ++ ++ If not sure leave the default settings alone. ++ ++config IMQ_BEHAVIOR_BB ++ bool "IMQ BB" ++ help ++ This settings defines how IMQ behaves in respect to its ++ hooking in PREROUTING and POSTROUTING. ++ ++ Choosing this option will make IMQ hook like this: ++ ++ PREROUTING: Before NAT ++ POSTROUTING: Before NAT ++ ++ More information can be found at: www.linuximq.net ++ ++ If not sure leave the default settings alone. ++ ++endchoice ++ ++config IMQ_NUM_DEVS ++ ++ int "Number of IMQ devices" ++ range 2 8 ++ depends on IMQ ++ default "2" ++ help ++ ++ This settings defines how many IMQ devices will be ++ created. ++ ++ The default value is 2. ++ ++ More information can be found at: www.linuximq.net ++ ++ If not sure leave the default settings alone. ++ + config TUN + tristate "Universal TUN/TAP device driver support" + select CRC32 +diff -urN linux-2.6.19.old/drivers/net/Makefile linux-2.6.19.dev/drivers/net/Makefile +--- linux-2.6.19.old/drivers/net/Makefile 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/drivers/net/Makefile 2006-12-14 03:13:47.000000000 +0100 +@@ -124,6 +124,7 @@ + obj-$(CONFIG_SLHC) += slhc.o + + obj-$(CONFIG_DUMMY) += dummy.o ++obj-$(CONFIG_IMQ) += imq.o + obj-$(CONFIG_IFB) += ifb.o + obj-$(CONFIG_DE600) += de600.o + obj-$(CONFIG_DE620) += de620.o +diff -urN linux-2.6.19.old/include/linux/imq.h linux-2.6.19.dev/include/linux/imq.h +--- linux-2.6.19.old/include/linux/imq.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/imq.h 2006-12-14 03:13:47.000000000 +0100 +@@ -0,0 +1,9 @@ ++#ifndef _IMQ_H ++#define _IMQ_H ++ ++#define IMQ_MAX_DEVS 16 ++ ++#define IMQ_F_IFMASK 0x7f ++#define IMQ_F_ENQUEUE 0x80 ++ ++#endif /* _IMQ_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_IMQ.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_IMQ.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_IMQ.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_IMQ.h 2006-12-14 03:13:47.000000000 +0100 +@@ -0,0 +1,8 @@ ++#ifndef _IPT_IMQ_H ++#define _IPT_IMQ_H ++ ++struct ipt_imq_info { ++ unsigned int todev; /* target imq device */ ++}; ++ ++#endif /* _IPT_IMQ_H */ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv6/ip6t_IMQ.h linux-2.6.19.dev/include/linux/netfilter_ipv6/ip6t_IMQ.h +--- linux-2.6.19.old/include/linux/netfilter_ipv6/ip6t_IMQ.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv6/ip6t_IMQ.h 2006-12-14 03:13:47.000000000 +0100 +@@ -0,0 +1,8 @@ ++#ifndef _IP6T_IMQ_H ++#define _IP6T_IMQ_H ++ ++struct ip6t_imq_info { ++ unsigned int todev; /* target imq device */ ++}; ++ ++#endif /* _IP6T_IMQ_H */ +diff -urN linux-2.6.19.old/include/linux/skbuff.h linux-2.6.19.dev/include/linux/skbuff.h +--- linux-2.6.19.old/include/linux/skbuff.h 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/skbuff.h 2006-12-14 03:13:47.000000000 +0100 +@@ -292,6 +292,10 @@ + #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) + struct sk_buff *nfct_reasm; + #endif ++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) ++ unsigned char imq_flags; ++ struct nf_info *nf_info; ++#endif + #ifdef CONFIG_BRIDGE_NETFILTER + struct nf_bridge_info *nf_bridge; + #endif +diff -urN linux-2.6.19.old/net/core/skbuff.c linux-2.6.19.dev/net/core/skbuff.c +--- linux-2.6.19.old/net/core/skbuff.c 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/net/core/skbuff.c 2006-12-14 03:13:47.000000000 +0100 +@@ -482,6 +482,10 @@ + C(nfct_reasm); + nf_conntrack_get_reasm(skb->nfct_reasm); + #endif ++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) ++ C(imq_flags); ++ C(nf_info); ++#endif /*CONFIG_IMQ*/ + #ifdef CONFIG_BRIDGE_NETFILTER + C(nf_bridge); + nf_bridge_get(skb->nf_bridge); +@@ -546,6 +550,10 @@ + #if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE) + new->ipvs_property = old->ipvs_property; + #endif ++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) ++ new->imq_flags = old->imq_flags; ++ new->nf_info = old->nf_info; ++#endif /*CONFIG_IMQ*/ + #ifdef CONFIG_BRIDGE_NETFILTER + new->nf_bridge = old->nf_bridge; + nf_bridge_get(old->nf_bridge); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_IMQ.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_IMQ.c +--- linux-2.6.19.old/net/ipv4/netfilter/ipt_IMQ.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_IMQ.c 2006-12-14 03:13:47.000000000 +0100 +@@ -0,0 +1,77 @@ ++/* ++ * This target marks packets to be enqueued to an imq device ++ */ ++#include ++#include ++#include ++#include ++#include ++ ++static unsigned int imq_target(struct sk_buff **pskb, ++ const struct net_device *in, ++ const struct net_device *out, ++ unsigned int hooknum, ++ const struct xt_target *target, ++ const void *targinfo) ++{ ++ struct ipt_imq_info *mr = (struct ipt_imq_info*)targinfo; ++ ++ (*pskb)->imq_flags = mr->todev | IMQ_F_ENQUEUE; ++ ++ return IPT_CONTINUE; ++} ++ ++static int imq_checkentry(const char *tablename, ++ const void *e, ++ const struct xt_target *target, ++ void *targinfo, ++ unsigned int hook_mask) ++{ ++ struct ipt_imq_info *mr; ++ ++ mr = (struct ipt_imq_info*)targinfo; ++ ++ if (strcmp(tablename, "mangle") != 0) { ++ printk(KERN_WARNING ++ "IMQ: IMQ can only be called from \"mangle\" table, not \"%s\"\n", ++ tablename); ++ return 0; ++ } ++ ++ if (mr->todev > IMQ_MAX_DEVS) { ++ printk(KERN_WARNING ++ "IMQ: invalid device specified, highest is %u\n", ++ IMQ_MAX_DEVS); ++ return 0; ++ } ++ ++ return 1; ++} ++ ++static struct ipt_target ipt_imq_reg = { ++ .name = "IMQ", ++ .target = imq_target, ++ .targetsize = sizeof(struct ipt_imq_info), ++ .checkentry = imq_checkentry, ++ .me = THIS_MODULE ++}; ++ ++static int __init init(void) ++{ ++ if (ipt_register_target(&ipt_imq_reg)) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++static void __exit fini(void) ++{ ++ ipt_unregister_target(&ipt_imq_reg); ++} ++ ++module_init(init); ++module_exit(fini); ++ ++MODULE_AUTHOR("http://www.linuximq.net"); ++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information."); ++MODULE_LICENSE("GPL"); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig +--- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:47.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:47.000000000 +0100 +@@ -390,6 +390,17 @@ + + To compile it as a module, choose M here. If unsure, say N. + ++config IP_NF_TARGET_IMQ ++ tristate "IMQ target support" ++ depends on IP_NF_MANGLE ++ help ++ This option adds a `IMQ' target which is used to specify if and ++ to which IMQ device packets should get enqueued/dequeued. ++ ++ For more information visit: http://www.linuximq.net/ ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ + config IP_NF_TARGET_LOG + tristate "LOG target support" + depends on IP_NF_IPTABLES +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile +--- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:47.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:47.000000000 +0100 +@@ -71,6 +71,7 @@ + obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o + obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o + obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o ++obj-$(CONFIG_IP_NF_TARGET_IMQ) += ipt_IMQ.o + obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o + obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o + obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o +diff -urN linux-2.6.19.old/net/ipv6/netfilter/ip6t_IMQ.c linux-2.6.19.dev/net/ipv6/netfilter/ip6t_IMQ.c +--- linux-2.6.19.old/net/ipv6/netfilter/ip6t_IMQ.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv6/netfilter/ip6t_IMQ.c 2006-12-14 03:13:47.000000000 +0100 +@@ -0,0 +1,77 @@ ++/* ++ * This target marks packets to be enqueued to an imq device ++ */ ++#include ++#include ++#include ++#include ++#include ++ ++static unsigned int imq_target(struct sk_buff **pskb, ++ const struct net_device *in, ++ const struct net_device *out, ++ unsigned int hooknum, ++ const struct xt_target *target, ++ const void *targinfo) ++{ ++ struct ip6t_imq_info *mr = (struct ip6t_imq_info*)targinfo; ++ ++ (*pskb)->imq_flags = mr->todev | IMQ_F_ENQUEUE; ++ ++ return IP6T_CONTINUE; ++} ++ ++static int imq_checkentry(const char *tablename, ++ const void *e, ++ const struct xt_target *target, ++ void *targinfo, ++ unsigned int hook_mask) ++{ ++ struct ip6t_imq_info *mr; ++ ++ mr = (struct ip6t_imq_info*)targinfo; ++ ++ if (strcmp(tablename, "mangle") != 0) { ++ printk(KERN_WARNING ++ "IMQ: IMQ can only be called from \"mangle\" table, not \"%s\"\n", ++ tablename); ++ return 0; ++ } ++ ++ if (mr->todev > IMQ_MAX_DEVS) { ++ printk(KERN_WARNING ++ "IMQ: invalid device specified, highest is %u\n", ++ IMQ_MAX_DEVS); ++ return 0; ++ } ++ ++ return 1; ++} ++ ++static struct ip6t_target ip6t_imq_reg = { ++ .name = "IMQ", ++ .target = imq_target, ++ .targetsize = sizeof(struct ip6t_imq_info), ++ .checkentry = imq_checkentry, ++ .me = THIS_MODULE ++}; ++ ++static int __init init(void) ++{ ++ if (ip6t_register_target(&ip6t_imq_reg)) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++static void __exit fini(void) ++{ ++ ip6t_unregister_target(&ip6t_imq_reg); ++} ++ ++module_init(init); ++module_exit(fini); ++ ++MODULE_AUTHOR("http://www.linuximq.net"); ++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information."); ++MODULE_LICENSE("GPL"); +diff -urN linux-2.6.19.old/net/ipv6/netfilter/Kconfig linux-2.6.19.dev/net/ipv6/netfilter/Kconfig +--- linux-2.6.19.old/net/ipv6/netfilter/Kconfig 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv6/netfilter/Kconfig 2006-12-14 03:13:47.000000000 +0100 +@@ -134,6 +134,15 @@ + + To compile it as a module, choose M here. If unsure, say N. + ++config IP6_NF_TARGET_IMQ ++ tristate "IMQ target support" ++ depends on IP6_NF_MANGLE ++ help ++ This option adds a `IMQ' target which is used to specify if and ++ to which imq device packets should get enqueued/dequeued. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ + config IP6_NF_TARGET_LOG + tristate "LOG target support" + depends on IP6_NF_FILTER +diff -urN linux-2.6.19.old/net/ipv6/netfilter/Makefile linux-2.6.19.dev/net/ipv6/netfilter/Makefile +--- linux-2.6.19.old/net/ipv6/netfilter/Makefile 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv6/netfilter/Makefile 2006-12-14 03:13:47.000000000 +0100 +@@ -4,6 +4,7 @@ + + # Link order matters here. + obj-$(CONFIG_IP6_NF_IPTABLES) += ip6_tables.o ++obj-$(CONFIG_IP6_NF_TARGET_IMQ) += ip6t_IMQ.o + obj-$(CONFIG_IP6_NF_MATCH_RT) += ip6t_rt.o + obj-$(CONFIG_IP6_NF_MATCH_OPTS) += ip6t_hbh.o + obj-$(CONFIG_IP6_NF_MATCH_IPV6HEADER) += ip6t_ipv6header.o +diff -urN linux-2.6.19.old/net/sched/sch_generic.c linux-2.6.19.dev/net/sched/sch_generic.c +--- linux-2.6.19.old/net/sched/sch_generic.c 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/net/sched/sch_generic.c 2006-12-14 03:13:47.000000000 +0100 +@@ -28,6 +28,9 @@ + #include + #include + #include ++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) ++#include ++#endif + #include + #include + #include +@@ -615,5 +618,6 @@ + EXPORT_SYMBOL(qdisc_alloc); + EXPORT_SYMBOL(qdisc_destroy); + EXPORT_SYMBOL(qdisc_reset); ++EXPORT_SYMBOL(__qdisc_run); + EXPORT_SYMBOL(qdisc_lock_tree); + EXPORT_SYMBOL(qdisc_unlock_tree); diff --git a/target/linux/generic-2.6/patches/160-netfilter_route.patch b/target/linux/generic-2.6/patches/160-netfilter_route.patch new file mode 100644 index 0000000000..7e8491c3e3 --- /dev/null +++ b/target/linux/generic-2.6/patches/160-netfilter_route.patch @@ -0,0 +1,902 @@ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_ROUTE.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_ROUTE.h +--- linux-2.6.19.old/include/linux/netfilter_ipv4/ipt_ROUTE.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ipt_ROUTE.h 2006-12-14 03:13:49.000000000 +0100 +@@ -0,0 +1,23 @@ ++/* Header file for iptables ipt_ROUTE target ++ * ++ * (C) 2002 by Cédric de Launois ++ * ++ * This software is distributed under GNU GPL v2, 1991 ++ */ ++#ifndef _IPT_ROUTE_H_target ++#define _IPT_ROUTE_H_target ++ ++#define IPT_ROUTE_IFNAMSIZ 16 ++ ++struct ipt_route_target_info { ++ char oif[IPT_ROUTE_IFNAMSIZ]; /* Output Interface Name */ ++ char iif[IPT_ROUTE_IFNAMSIZ]; /* Input Interface Name */ ++ u_int32_t gw; /* IP address of gateway */ ++ u_int8_t flags; ++}; ++ ++/* Values for "flags" field */ ++#define IPT_ROUTE_CONTINUE 0x01 ++#define IPT_ROUTE_TEE 0x02 ++ ++#endif /*_IPT_ROUTE_H_target*/ +diff -urN linux-2.6.19.old/include/linux/netfilter_ipv6/ip6t_ROUTE.h linux-2.6.19.dev/include/linux/netfilter_ipv6/ip6t_ROUTE.h +--- linux-2.6.19.old/include/linux/netfilter_ipv6/ip6t_ROUTE.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/include/linux/netfilter_ipv6/ip6t_ROUTE.h 2006-12-14 03:13:49.000000000 +0100 +@@ -0,0 +1,23 @@ ++/* Header file for iptables ip6t_ROUTE target ++ * ++ * (C) 2003 by Cédric de Launois ++ * ++ * This software is distributed under GNU GPL v2, 1991 ++ */ ++#ifndef _IPT_ROUTE_H_target ++#define _IPT_ROUTE_H_target ++ ++#define IP6T_ROUTE_IFNAMSIZ 16 ++ ++struct ip6t_route_target_info { ++ char oif[IP6T_ROUTE_IFNAMSIZ]; /* Output Interface Name */ ++ char iif[IP6T_ROUTE_IFNAMSIZ]; /* Input Interface Name */ ++ u_int32_t gw[4]; /* IPv6 address of gateway */ ++ u_int8_t flags; ++}; ++ ++/* Values for "flags" field */ ++#define IP6T_ROUTE_CONTINUE 0x01 ++#define IP6T_ROUTE_TEE 0x02 ++ ++#endif /*_IP6T_ROUTE_H_target*/ +diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_ROUTE.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_ROUTE.c +--- linux-2.6.19.old/net/ipv4/netfilter/ipt_ROUTE.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_ROUTE.c 2006-12-14 03:13:49.000000000 +0100 +@@ -0,0 +1,455 @@ ++/* ++ * This implements the ROUTE target, which enables you to setup unusual ++ * routes not supported by the standard kernel routing table. ++ * ++ * Copyright (C) 2002 Cedric de Launois ++ * ++ * v 1.11 2004/11/23 ++ * ++ * This software is distributed under GNU GPL v2, 1991 ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#if 0 ++#define DEBUGP printk ++#else ++#define DEBUGP(format, args...) ++#endif ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Cedric de Launois "); ++MODULE_DESCRIPTION("iptables ROUTE target module"); ++ ++/* Try to route the packet according to the routing keys specified in ++ * route_info. Keys are : ++ * - ifindex : ++ * 0 if no oif preferred, ++ * otherwise set to the index of the desired oif ++ * - route_info->gw : ++ * 0 if no gateway specified, ++ * otherwise set to the next host to which the pkt must be routed ++ * If success, skb->dev is the output device to which the packet must ++ * be sent and skb->dst is not NULL ++ * ++ * RETURN: -1 if an error occured ++ * 1 if the packet was succesfully routed to the ++ * destination desired ++ * 0 if the kernel routing table could not route the packet ++ * according to the keys specified ++ */ ++static int route(struct sk_buff *skb, ++ unsigned int ifindex, ++ const struct ipt_route_target_info *route_info) ++{ ++ int err; ++ struct rtable *rt; ++ struct iphdr *iph = skb->nh.iph; ++ struct flowi fl = { ++ .oif = ifindex, ++ .nl_u = { ++ .ip4_u = { ++ .daddr = iph->daddr, ++ .saddr = 0, ++ .tos = RT_TOS(iph->tos), ++ .scope = RT_SCOPE_UNIVERSE, ++ } ++ } ++ }; ++ ++ /* The destination address may be overloaded by the target */ ++ if (route_info->gw) ++ fl.fl4_dst = route_info->gw; ++ ++ /* Trying to route the packet using the standard routing table. */ ++ if ((err = ip_route_output_key(&rt, &fl))) { ++ if (net_ratelimit()) ++ DEBUGP("ipt_ROUTE: couldn't route pkt (err: %i)",err); ++ return -1; ++ } ++ ++ /* Drop old route. */ ++ dst_release(skb->dst); ++ skb->dst = NULL; ++ ++ /* Success if no oif specified or if the oif correspond to the ++ * one desired */ ++ if (!ifindex || rt->u.dst.dev->ifindex == ifindex) { ++ skb->dst = &rt->u.dst; ++ skb->dev = skb->dst->dev; ++ skb->protocol = htons(ETH_P_IP); ++ return 1; ++ } ++ ++ /* The interface selected by the routing table is not the one ++ * specified by the user. This may happen because the dst address ++ * is one of our own addresses. ++ */ ++ if (net_ratelimit()) ++ DEBUGP("ipt_ROUTE: failed to route as desired gw=%u.%u.%u.%u oif=%i (got oif=%i)\n", ++ NIPQUAD(route_info->gw), ifindex, rt->u.dst.dev->ifindex); ++ ++ return 0; ++} ++ ++ ++/* Stolen from ip_finish_output2 ++ * PRE : skb->dev is set to the device we are leaving by ++ * skb->dst is not NULL ++ * POST: the packet is sent with the link layer header pushed ++ * the packet is destroyed ++ */ ++static void ip_direct_send(struct sk_buff *skb) ++{ ++ struct dst_entry *dst = skb->dst; ++ struct hh_cache *hh = dst->hh; ++ struct net_device *dev = dst->dev; ++ int hh_len = LL_RESERVED_SPACE(dev); ++ ++ /* Be paranoid, rather than too clever. */ ++ if (unlikely(skb_headroom(skb) < hh_len && dev->hard_header)) { ++ struct sk_buff *skb2; ++ ++ skb2 = skb_realloc_headroom(skb, LL_RESERVED_SPACE(dev)); ++ if (skb2 == NULL) { ++ kfree_skb(skb); ++ return; ++ } ++ if (skb->sk) ++ skb_set_owner_w(skb2, skb->sk); ++ kfree_skb(skb); ++ skb = skb2; ++ } ++ ++ if (hh) { ++ int hh_alen; ++ ++ read_lock_bh(&hh->hh_lock); ++ hh_alen = HH_DATA_ALIGN(hh->hh_len); ++ memcpy(skb->data - hh_alen, hh->hh_data, hh_alen); ++ read_unlock_bh(&hh->hh_lock); ++ skb_push(skb, hh->hh_len); ++ hh->hh_output(skb); ++ } else if (dst->neighbour) ++ dst->neighbour->output(skb); ++ else { ++ if (net_ratelimit()) ++ DEBUGP(KERN_DEBUG "ipt_ROUTE: no hdr & no neighbour cache!\n"); ++ kfree_skb(skb); ++ } ++} ++ ++ ++/* PRE : skb->dev is set to the device we are leaving by ++ * POST: - the packet is directly sent to the skb->dev device, without ++ * pushing the link layer header. ++ * - the packet is destroyed ++ */ ++static inline int dev_direct_send(struct sk_buff *skb) ++{ ++ return dev_queue_xmit(skb); ++} ++ ++ ++static unsigned int route_oif(const struct ipt_route_target_info *route_info, ++ struct sk_buff *skb) ++{ ++ unsigned int ifindex = 0; ++ struct net_device *dev_out = NULL; ++ ++ /* The user set the interface name to use. ++ * Getting the current interface index. ++ */ ++ if ((dev_out = dev_get_by_name(route_info->oif))) { ++ ifindex = dev_out->ifindex; ++ } else { ++ /* Unknown interface name : packet dropped */ ++ if (net_ratelimit()) ++ DEBUGP("ipt_ROUTE: oif interface %s not found\n", route_info->oif); ++ return NF_DROP; ++ } ++ ++ /* Trying the standard way of routing packets */ ++ switch (route(skb, ifindex, route_info)) { ++ case 1: ++ dev_put(dev_out); ++ if (route_info->flags & IPT_ROUTE_CONTINUE) ++ return IPT_CONTINUE; ++ ++ ip_direct_send(skb); ++ return NF_STOLEN; ++ ++ case 0: ++ /* Failed to send to oif. Trying the hard way */ ++ if (route_info->flags & IPT_ROUTE_CONTINUE) ++ return NF_DROP; ++ ++ if (net_ratelimit()) ++ DEBUGP("ipt_ROUTE: forcing the use of %i\n", ++ ifindex); ++ ++ /* We have to force the use of an interface. ++ * This interface must be a tunnel interface since ++ * otherwise we can't guess the hw address for ++ * the packet. For a tunnel interface, no hw address ++ * is needed. ++ */ ++ if ((dev_out->type != ARPHRD_TUNNEL) ++ && (dev_out->type != ARPHRD_IPGRE)) { ++ if (net_ratelimit()) ++ DEBUGP("ipt_ROUTE: can't guess the hw addr !\n"); ++ dev_put(dev_out); ++ return NF_DROP; ++ } ++ ++ /* Send the packet. This will also free skb ++ * Do not go through the POST_ROUTING hook because ++ * skb->dst is not set and because it will probably ++ * get confused by the destination IP address. ++ */ ++ skb->dev = dev_out; ++ dev_direct_send(skb); ++ dev_put(dev_out); ++ return NF_STOLEN; ++ ++ default: ++ /* Unexpected error */ ++ dev_put(dev_out); ++ return NF_DROP; ++ } ++} ++ ++ ++static unsigned int route_iif(const struct ipt_route_target_info *route_info, ++ struct sk_buff *skb) ++{ ++ struct net_device *dev_in = NULL; ++ ++ /* Getting the current interface index. */ ++ if (!(dev_in = dev_get_by_name(route_info->iif))) { ++ if (net_ratelimit()) ++ DEBUGP("ipt_ROUTE: iif interface %s not found\n", route_info->iif); ++ return NF_DROP; ++ } ++ ++ skb->dev = dev_in; ++ dst_release(skb->dst); ++ skb->dst = NULL; ++ ++ netif_rx(skb); ++ dev_put(dev_in); ++ return NF_STOLEN; ++} ++ ++ ++static unsigned int route_gw(const struct ipt_route_target_info *route_info, ++ struct sk_buff *skb) ++{ ++ if (route(skb, 0, route_info)!=1) ++ return NF_DROP; ++ ++ if (route_info->flags & IPT_ROUTE_CONTINUE) ++ return IPT_CONTINUE; ++ ++ ip_direct_send(skb); ++ return NF_STOLEN; ++} ++ ++ ++/* To detect and deter routed packet loopback when using the --tee option, ++ * we take a page out of the raw.patch book: on the copied skb, we set up ++ * a fake ->nfct entry, pointing to the local &route_tee_track. We skip ++ * routing packets when we see they already have that ->nfct. ++ */ ++ ++static struct ip_conntrack route_tee_track; ++ ++static unsigned int ipt_route_target(struct sk_buff **pskb, ++ const struct net_device *in, ++ const struct net_device *out, ++ unsigned int hooknum, ++ const struct xt_target *target, ++ const void *targinfo) ++{ ++ const struct ipt_route_target_info *route_info = targinfo; ++ struct sk_buff *skb = *pskb; ++ unsigned int res; ++ ++ if (skb->nfct == &route_tee_track.ct_general) { ++ /* Loopback - a packet we already routed, is to be ++ * routed another time. Avoid that, now. ++ */ ++ if (net_ratelimit()) ++ DEBUGP(KERN_DEBUG "ipt_ROUTE: loopback - DROP!\n"); ++ return NF_DROP; ++ } ++ ++ /* If we are at PREROUTING or INPUT hook ++ * the TTL isn't decreased by the IP stack ++ */ ++ if (hooknum == NF_IP_PRE_ROUTING || ++ hooknum == NF_IP_LOCAL_IN) { ++ ++ struct iphdr *iph = skb->nh.iph; ++ ++ if (iph->ttl <= 1) { ++ struct rtable *rt; ++ struct flowi fl = { ++ .oif = 0, ++ .nl_u = { ++ .ip4_u = { ++ .daddr = iph->daddr, ++ .saddr = iph->saddr, ++ .tos = RT_TOS(iph->tos), ++ .scope = ((iph->tos & RTO_ONLINK) ? ++ RT_SCOPE_LINK : ++ RT_SCOPE_UNIVERSE) ++ } ++ } ++ }; ++ ++ if (ip_route_output_key(&rt, &fl)) { ++ return NF_DROP; ++ } ++ ++ if (skb->dev == rt->u.dst.dev) { ++ /* Drop old route. */ ++ dst_release(skb->dst); ++ skb->dst = &rt->u.dst; ++ ++ /* this will traverse normal stack, and ++ * thus call conntrack on the icmp packet */ ++ icmp_send(skb, ICMP_TIME_EXCEEDED, ++ ICMP_EXC_TTL, 0); ++ } ++ ++ return NF_DROP; ++ } ++ ++ /* ++ * If we are at INPUT the checksum must be recalculated since ++ * the length could change as the result of a defragmentation. ++ */ ++ if(hooknum == NF_IP_LOCAL_IN) { ++ iph->ttl = iph->ttl - 1; ++ iph->check = 0; ++ iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); ++ } else { ++ ip_decrease_ttl(iph); ++ } ++ } ++ ++ if ((route_info->flags & IPT_ROUTE_TEE)) { ++ /* ++ * Copy the *pskb, and route the copy. Will later return ++ * IPT_CONTINUE for the original skb, which should continue ++ * on its way as if nothing happened. The copy should be ++ * independantly delivered to the ROUTE --gw. ++ */ ++ skb = skb_copy(*pskb, GFP_ATOMIC); ++ if (!skb) { ++ if (net_ratelimit()) ++ DEBUGP(KERN_DEBUG "ipt_ROUTE: copy failed!\n"); ++ return IPT_CONTINUE; ++ } ++ } ++ ++ /* Tell conntrack to forget this packet since it may get confused ++ * when a packet is leaving with dst address == our address. ++ * Good idea ? Dunno. Need advice. ++ * ++ * NEW: mark the skb with our &route_tee_track, so we avoid looping ++ * on any already routed packet. ++ */ ++ if (!(route_info->flags & IPT_ROUTE_CONTINUE)) { ++ nf_conntrack_put(skb->nfct); ++ skb->nfct = &route_tee_track.ct_general; ++ skb->nfctinfo = IP_CT_NEW; ++ nf_conntrack_get(skb->nfct); ++ } ++ ++ if (route_info->oif[0] != '\0') { ++ res = route_oif(route_info, skb); ++ } else if (route_info->iif[0] != '\0') { ++ res = route_iif(route_info, skb); ++ } else if (route_info->gw) { ++ res = route_gw(route_info, skb); ++ } else { ++ if (net_ratelimit()) ++ DEBUGP(KERN_DEBUG "ipt_ROUTE: no parameter !\n"); ++ res = IPT_CONTINUE; ++ } ++ ++ if ((route_info->flags & IPT_ROUTE_TEE)) ++ res = IPT_CONTINUE; ++ ++ return res; ++} ++ ++ ++static int ipt_route_checkentry(const char *tablename, ++ const void *e, ++ const struct xt_target *target, ++ void *targinfo, ++ unsigned int hook_mask) ++{ ++ if (strcmp(tablename, "mangle") != 0) { ++ printk("ipt_ROUTE: bad table `%s', use the `mangle' table.\n", ++ tablename); ++ return 0; ++ } ++ ++ if (hook_mask & ~( (1 << NF_IP_PRE_ROUTING) ++ | (1 << NF_IP_LOCAL_IN) ++ | (1 << NF_IP_FORWARD) ++ | (1 << NF_IP_LOCAL_OUT) ++ | (1 << NF_IP_POST_ROUTING))) { ++ printk("ipt_ROUTE: bad hook\n"); ++ return 0; ++ } ++ ++ return 1; ++} ++ ++ ++static struct ipt_target ipt_route_reg = { ++ .name = "ROUTE", ++ .target = ipt_route_target, ++ .targetsize = sizeof(struct ipt_route_target_info), ++ .checkentry = ipt_route_checkentry, ++ .me = THIS_MODULE, ++}; ++ ++static int __init init(void) ++{ ++ /* Set up fake conntrack (stolen from raw.patch): ++ - to never be deleted, not in any hashes */ ++ atomic_set(&route_tee_track.ct_general.use, 1); ++ /* - and look it like as a confirmed connection */ ++ set_bit(IPS_CONFIRMED_BIT, &route_tee_track.status); ++ /* Initialize fake conntrack so that NAT will skip it */ ++ route_tee_track.status |= IPS_NAT_DONE_MASK; ++ ++ return ipt_register_target(&ipt_route_reg); ++} ++ ++ ++static void __exit fini(void) ++{ ++ ipt_unregister_target(&ipt_route_reg); ++} ++ ++module_init(init); ++module_exit(fini); +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig +--- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:49.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:49.000000000 +0100 +@@ -494,6 +494,23 @@ + + To compile it as a module, choose M here. If unsure, say N. + ++config IP_NF_TARGET_ROUTE ++ tristate 'ROUTE target support' ++ depends on IP_NF_MANGLE ++ help ++ This option adds a `ROUTE' target, which enables you to setup unusual ++ routes. For example, the ROUTE lets you route a received packet through ++ an interface or towards a host, even if the regular destination of the ++ packet is the router itself. The ROUTE target is also able to change the ++ incoming interface of a packet. ++ ++ The target can be or not a final target. It has to be used inside the ++ mangle table. ++ ++ If you want to compile it as a module, say M here and read ++ Documentation/modules.txt. The module will be called ipt_ROUTE.o. ++ If unsure, say `N'. ++ + config IP_NF_TARGET_NETMAP + tristate "NETMAP target support" + depends on IP_NF_NAT +diff -urN linux-2.6.19.old/net/ipv4/netfilter/Makefile linux-2.6.19.dev/net/ipv4/netfilter/Makefile +--- linux-2.6.19.old/net/ipv4/netfilter/Makefile 2006-12-14 03:13:49.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv4/netfilter/Makefile 2006-12-14 03:13:49.000000000 +0100 +@@ -74,6 +74,7 @@ + obj-$(CONFIG_IP_NF_TARGET_IMQ) += ipt_IMQ.o + obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o + obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o ++obj-$(CONFIG_IP_NF_TARGET_ROUTE) += ipt_ROUTE.o + obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o + obj-$(CONFIG_IP_NF_TARGET_SAME) += ipt_SAME.o + obj-$(CONFIG_IP_NF_NAT_SNMP_BASIC) += ip_nat_snmp_basic.o +diff -urN linux-2.6.19.old/net/ipv6/ipv6_syms.c linux-2.6.19.dev/net/ipv6/ipv6_syms.c +--- linux-2.6.19.old/net/ipv6/ipv6_syms.c 2006-11-29 22:57:37.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv6/ipv6_syms.c 2006-12-14 03:13:49.000000000 +0100 +@@ -11,6 +11,7 @@ + EXPORT_SYMBOL(icmpv6_statistics); + EXPORT_SYMBOL(icmpv6_err_convert); + EXPORT_SYMBOL(ndisc_mc_map); ++EXPORT_SYMBOL(nd_tbl); + EXPORT_SYMBOL(register_inet6addr_notifier); + EXPORT_SYMBOL(unregister_inet6addr_notifier); + EXPORT_SYMBOL(ip6_route_output); +diff -urN linux-2.6.19.old/net/ipv6/netfilter/ip6t_ROUTE.c linux-2.6.19.dev/net/ipv6/netfilter/ip6t_ROUTE.c +--- linux-2.6.19.old/net/ipv6/netfilter/ip6t_ROUTE.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv6/netfilter/ip6t_ROUTE.c 2006-12-14 03:13:49.000000000 +0100 +@@ -0,0 +1,302 @@ ++/* ++ * This implements the ROUTE v6 target, which enables you to setup unusual ++ * routes not supported by the standard kernel routing table. ++ * ++ * Copyright (C) 2003 Cedric de Launois ++ * ++ * v 1.1 2004/11/23 ++ * ++ * This software is distributed under GNU GPL v2, 1991 ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#if 1 ++#define DEBUGP printk ++#else ++#define DEBUGP(format, args...) ++#endif ++ ++#define NIP6(addr) \ ++ ntohs((addr).s6_addr16[0]), \ ++ ntohs((addr).s6_addr16[1]), \ ++ ntohs((addr).s6_addr16[2]), \ ++ ntohs((addr).s6_addr16[3]), \ ++ ntohs((addr).s6_addr16[4]), \ ++ ntohs((addr).s6_addr16[5]), \ ++ ntohs((addr).s6_addr16[6]), \ ++ ntohs((addr).s6_addr16[7]) ++ ++/* Route the packet according to the routing keys specified in ++ * route_info. Keys are : ++ * - ifindex : ++ * 0 if no oif preferred, ++ * otherwise set to the index of the desired oif ++ * - route_info->gw : ++ * 0 if no gateway specified, ++ * otherwise set to the next host to which the pkt must be routed ++ * If success, skb->dev is the output device to which the packet must ++ * be sent and skb->dst is not NULL ++ * ++ * RETURN: 1 if the packet was succesfully routed to the ++ * destination desired ++ * 0 if the kernel routing table could not route the packet ++ * according to the keys specified ++ */ ++static int ++route6(struct sk_buff *skb, ++ unsigned int ifindex, ++ const struct ip6t_route_target_info *route_info) ++{ ++ struct rt6_info *rt = NULL; ++ struct ipv6hdr *ipv6h = skb->nh.ipv6h; ++ struct in6_addr *gw = (struct in6_addr*)&route_info->gw; ++ ++ DEBUGP("ip6t_ROUTE: called with: "); ++ DEBUGP("DST=%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x ", NIP6(ipv6h->daddr)); ++ DEBUGP("GATEWAY=%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x ", NIP6(*gw)); ++ DEBUGP("OUT=%s\n", route_info->oif); ++ ++ if (ipv6_addr_any(gw)) ++ rt = rt6_lookup(&ipv6h->daddr, &ipv6h->saddr, ifindex, 1); ++ else ++ rt = rt6_lookup(gw, &ipv6h->saddr, ifindex, 1); ++ ++ if (!rt) ++ goto no_route; ++ ++ DEBUGP("ip6t_ROUTE: routing gives: "); ++ DEBUGP("DST=%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x ", NIP6(rt->rt6i_dst.addr)); ++ DEBUGP("GATEWAY=%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x ", NIP6(rt->rt6i_gateway)); ++ DEBUGP("OUT=%s\n", rt->rt6i_dev->name); ++ ++ if (ifindex && rt->rt6i_dev->ifindex!=ifindex) ++ goto wrong_route; ++ ++ if (!rt->rt6i_nexthop) { ++ DEBUGP("ip6t_ROUTE: discovering neighbour\n"); ++ rt->rt6i_nexthop = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_dst.addr); ++ } ++ ++ /* Drop old route. */ ++ dst_release(skb->dst); ++ skb->dst = &rt->u.dst; ++ skb->dev = rt->rt6i_dev; ++ return 1; ++ ++ wrong_route: ++ dst_release(&rt->u.dst); ++ no_route: ++ if (!net_ratelimit()) ++ return 0; ++ ++ printk("ip6t_ROUTE: no explicit route found "); ++ if (ifindex) ++ printk("via interface %s ", route_info->oif); ++ if (!ipv6_addr_any(gw)) ++ printk("via gateway %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x", NIP6(*gw)); ++ printk("\n"); ++ return 0; ++} ++ ++ ++/* Stolen from ip6_output_finish ++ * PRE : skb->dev is set to the device we are leaving by ++ * skb->dst is not NULL ++ * POST: the packet is sent with the link layer header pushed ++ * the packet is destroyed ++ */ ++static void ip_direct_send(struct sk_buff *skb) ++{ ++ struct dst_entry *dst = skb->dst; ++ struct hh_cache *hh = dst->hh; ++ ++ if (hh) { ++ read_lock_bh(&hh->hh_lock); ++ memcpy(skb->data - 16, hh->hh_data, 16); ++ read_unlock_bh(&hh->hh_lock); ++ skb_push(skb, hh->hh_len); ++ hh->hh_output(skb); ++ } else if (dst->neighbour) ++ dst->neighbour->output(skb); ++ else { ++ if (net_ratelimit()) ++ DEBUGP(KERN_DEBUG "ip6t_ROUTE: no hdr & no neighbour cache!\n"); ++ kfree_skb(skb); ++ } ++} ++ ++ ++static unsigned int ++route6_oif(const struct ip6t_route_target_info *route_info, ++ struct sk_buff *skb) ++{ ++ unsigned int ifindex = 0; ++ struct net_device *dev_out = NULL; ++ ++ /* The user set the interface name to use. ++ * Getting the current interface index. ++ */ ++ if ((dev_out = dev_get_by_name(route_info->oif))) { ++ ifindex = dev_out->ifindex; ++ } else { ++ /* Unknown interface name : packet dropped */ ++ if (net_ratelimit()) ++ DEBUGP("ip6t_ROUTE: oif interface %s not found\n", route_info->oif); ++ ++ if (route_info->flags & IP6T_ROUTE_CONTINUE) ++ return IP6T_CONTINUE; ++ else ++ return NF_DROP; ++ } ++ ++ /* Trying the standard way of routing packets */ ++ if (route6(skb, ifindex, route_info)) { ++ dev_put(dev_out); ++ if (route_info->flags & IP6T_ROUTE_CONTINUE) ++ return IP6T_CONTINUE; ++ ++ ip_direct_send(skb); ++ return NF_STOLEN; ++ } else ++ return NF_DROP; ++} ++ ++ ++static unsigned int ++route6_gw(const struct ip6t_route_target_info *route_info, ++ struct sk_buff *skb) ++{ ++ if (route6(skb, 0, route_info)) { ++ if (route_info->flags & IP6T_ROUTE_CONTINUE) ++ return IP6T_CONTINUE; ++ ++ ip_direct_send(skb); ++ return NF_STOLEN; ++ } else ++ return NF_DROP; ++} ++ ++ ++static unsigned int ++ip6t_route_target(struct sk_buff **pskb, ++ const struct net_device *in, ++ const struct net_device *out, ++ unsigned int hooknum, ++ const struct xt_target *target, ++ const void *targinfo) ++{ ++ const struct ip6t_route_target_info *route_info = targinfo; ++ struct sk_buff *skb = *pskb; ++ struct in6_addr *gw = (struct in6_addr*)&route_info->gw; ++ unsigned int res; ++ ++ if (route_info->flags & IP6T_ROUTE_CONTINUE) ++ goto do_it; ++ ++ /* If we are at PREROUTING or INPUT hook ++ * the TTL isn't decreased by the IP stack ++ */ ++ if (hooknum == NF_IP6_PRE_ROUTING || ++ hooknum == NF_IP6_LOCAL_IN) { ++ ++ struct ipv6hdr *ipv6h = skb->nh.ipv6h; ++ ++ if (ipv6h->hop_limit <= 1) { ++ /* Force OUTPUT device used as source address */ ++ skb->dev = skb->dst->dev; ++ ++ icmpv6_send(skb, ICMPV6_TIME_EXCEED, ++ ICMPV6_EXC_HOPLIMIT, 0, skb->dev); ++ ++ return NF_DROP; ++ } ++ ++ ipv6h->hop_limit--; ++ } ++ ++ if ((route_info->flags & IP6T_ROUTE_TEE)) { ++ /* ++ * Copy the *pskb, and route the copy. Will later return ++ * IP6T_CONTINUE for the original skb, which should continue ++ * on its way as if nothing happened. The copy should be ++ * independantly delivered to the ROUTE --gw. ++ */ ++ skb = skb_copy(*pskb, GFP_ATOMIC); ++ if (!skb) { ++ if (net_ratelimit()) ++ DEBUGP(KERN_DEBUG "ip6t_ROUTE: copy failed!\n"); ++ return IP6T_CONTINUE; ++ } ++ } ++ ++do_it: ++ if (route_info->oif[0]) { ++ res = route6_oif(route_info, skb); ++ } else if (!ipv6_addr_any(gw)) { ++ res = route6_gw(route_info, skb); ++ } else { ++ if (net_ratelimit()) ++ DEBUGP(KERN_DEBUG "ip6t_ROUTE: no parameter !\n"); ++ res = IP6T_CONTINUE; ++ } ++ ++ if ((route_info->flags & IP6T_ROUTE_TEE)) ++ res = IP6T_CONTINUE; ++ ++ return res; ++} ++ ++ ++static int ++ip6t_route_checkentry(const char *tablename, ++ const void *e, ++ const struct xt_target *target, ++ void *targinfo, ++ unsigned int hook_mask) ++{ ++ if (strcmp(tablename, "mangle") != 0) { ++ printk("ip6t_ROUTE: can only be called from \"mangle\" table.\n"); ++ return 0; ++ } ++ ++ return 1; ++} ++ ++ ++static struct ip6t_target ip6t_route_reg = { ++ .name = "ROUTE", ++ .target = ip6t_route_target, ++ .targetsize = sizeof(struct ip6t_route_target_info), ++ .checkentry = ip6t_route_checkentry, ++ .me = THIS_MODULE ++}; ++ ++ ++static int __init init(void) ++{ ++ printk(KERN_DEBUG "registering ipv6 ROUTE target\n"); ++ if (ip6t_register_target(&ip6t_route_reg)) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++ ++static void __exit fini(void) ++{ ++ ip6t_unregister_target(&ip6t_route_reg); ++} ++ ++module_init(init); ++module_exit(fini); ++MODULE_LICENSE("GPL"); +diff -urN linux-2.6.19.old/net/ipv6/netfilter/Kconfig linux-2.6.19.dev/net/ipv6/netfilter/Kconfig +--- linux-2.6.19.old/net/ipv6/netfilter/Kconfig 2006-12-14 03:13:49.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv6/netfilter/Kconfig 2006-12-14 03:13:49.000000000 +0100 +@@ -162,6 +162,19 @@ + + To compile it as a module, choose M here. If unsure, say N. + ++config IP6_NF_TARGET_ROUTE ++ tristate "ROUTE target support" ++ depends on IP6_NF_MANGLE ++ help ++ This option adds a `ROUTE' target, which enables you to setup unusual ++ routes. The ROUTE target is also able to change the incoming interface ++ of a packet. ++ ++ The target can be or not a final target. It has to be used inside the ++ mangle table. ++ ++ Not working as a module. ++ + config IP6_NF_MANGLE + tristate "Packet mangling" + depends on IP6_NF_IPTABLES +diff -urN linux-2.6.19.old/net/ipv6/netfilter/Makefile linux-2.6.19.dev/net/ipv6/netfilter/Makefile +--- linux-2.6.19.old/net/ipv6/netfilter/Makefile 2006-12-14 03:13:49.000000000 +0100 ++++ linux-2.6.19.dev/net/ipv6/netfilter/Makefile 2006-12-14 03:13:49.000000000 +0100 +@@ -20,6 +20,7 @@ + obj-$(CONFIG_IP6_NF_RAW) += ip6table_raw.o + obj-$(CONFIG_IP6_NF_MATCH_HL) += ip6t_hl.o + obj-$(CONFIG_IP6_NF_TARGET_REJECT) += ip6t_REJECT.o ++obj-$(CONFIG_IP6_NF_TARGET_ROUTE) += ip6t_ROUTE.o + + # objects for l3 independent conntrack + nf_conntrack_ipv6-objs := nf_conntrack_l3proto_ipv6.o nf_conntrack_proto_icmpv6.o nf_conntrack_reasm.o -- cgit v1.2.3