layer7 has been upgraded in [15517], but the old patches weren't removed -- remove them now

SVN-Revision: 15580

1 files changed, 0 insertions, 2101 deletions

diff --git a/target/linux/generic-2.6/patches-2.6.21/100-netfilter_layer7_2.17.patch b/target/linux/generic-2.6/patches-2.6.21/100-netfilter_layer7_2.17.patch
deleted file mode 100644
index 8a9854ae97..0000000000
--- a/target/linux/generic-2.6/patches-2.6.21/100-netfilter_layer7_2.17.patch
+++ /dev/null
@@ -1,2101 +0,0 @@
---- a/net/netfilter/Kconfig
-+++ b/net/netfilter/Kconfig
-@@ -640,6 +640,27 @@ config NETFILTER_XT_MATCH_STATE
- 
- 	  To compile it as a module, choose M here.  If unsure, say N.
- 
-+config NETFILTER_XT_MATCH_LAYER7
-+	tristate '"layer7" match support'
-+	depends on NETFILTER_XTABLES
-+	depends on EXPERIMENTAL && (IP_NF_CONNTRACK || NF_CONNTRACK)
-+       depends on NF_CT_ACCT
-+	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 NETFILTER_XT_MATCH_LAYER7_DEBUG
-+        bool 'Layer 7 debugging output'
-+        depends on NETFILTER_XT_MATCH_LAYER7
-+        help
-+          Say Y to get lots of debugging output.
-+
-+
- config NETFILTER_XT_MATCH_STATISTIC
- 	tristate '"statistic" match support'
- 	depends on NETFILTER_XTABLES
---- a/net/netfilter/Makefile
-+++ b/net/netfilter/Makefile
-@@ -68,6 +68,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_QUOTA) +
- obj-$(CONFIG_NETFILTER_XT_MATCH_REALM) += xt_realm.o
- obj-$(CONFIG_NETFILTER_XT_MATCH_SCTP) += xt_sctp.o
- obj-$(CONFIG_NETFILTER_XT_MATCH_STATE) += xt_state.o
-+obj-$(CONFIG_NETFILTER_XT_MATCH_LAYER7) += xt_layer7.o
- obj-$(CONFIG_NETFILTER_XT_MATCH_STATISTIC) += xt_statistic.o
- obj-$(CONFIG_NETFILTER_XT_MATCH_STRING) += xt_string.o
- obj-$(CONFIG_NETFILTER_XT_MATCH_TCPMSS) += xt_tcpmss.o
---- /dev/null
-+++ b/net/netfilter/xt_layer7.c
-@@ -0,0 +1,634 @@
-+/*
-+  Kernel module to match application layer (OSI layer 7) data in connections.
-+
-+  http://l7-filter.sf.net
-+
-+  (C) 2003, 2004, 2005, 2006, 2007 Matthew Strait and Ethan Sommer.
-+
-+  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 <winfield@freegates.be>,
-+  xt_helper.c (C) 2002 Harald Welte and cls_layer7.c (C) 2003 Matthew Strait,
-+  Ethan Sommer, Justin Levandoski.
-+*/
-+
-+#include <linux/spinlock.h>
-+#include <linux/version.h>
-+#include <net/ip.h>
-+#include <net/tcp.h>
-+#include <linux/module.h>
-+#include <linux/skbuff.h>
-+#include <linux/netfilter.h>
-+#include <net/netfilter/nf_conntrack.h>
-+#include <net/netfilter/nf_conntrack_core.h>
-+#include <linux/netfilter/x_tables.h>
-+#include <linux/netfilter/xt_layer7.h>
-+#include <linux/ctype.h>
-+#include <linux/proc_fs.h>
-+
-+#include "regexp/regexp.c"
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Matthew Strait <quadong@users.sf.net>, Ethan Sommer <sommere@users.sf.net>");
-+MODULE_DESCRIPTION("iptables application layer match module");
-+MODULE_ALIAS("ipt_layer7");
-+MODULE_VERSION("2.17");
-+
-+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_NETFILTER_XT_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;
-+
-+DEFINE_SPINLOCK(l7_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 (i + '0');
-+			break;
-+		case 10 ... 15:
-+			return (i - 10 + 'a');
-+			break;
-+		default:
-+			if (net_ratelimit())
-+				printk("layer7: 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(const char * regex_string, 
-+                                  const 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((char *)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(!ip_hdr(skb)) /* not IP */
-+		return 0;
-+	if(ip_hdr(skb)->protocol != IPPROTO_TCP &&
-+	   ip_hdr(skb)->protocol != IPPROTO_UDP &&
-+	   ip_hdr(skb)->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 ip_hdr(skb)
-+	isn't set, this can be gotten from 4*(skb->data[0] & 0x0f) as well. */
-+	int ip_hl = 4*ip_hdr(skb)->ihl;
-+
-+	if( ip_hdr(skb)->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( ip_hdr(skb)->protocol == IPPROTO_UDP  ) {
-+		return ip_hl + 8; /* UDP header is always 8 bytes */
-+	} else if( ip_hdr(skb)->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 nf_conn * conntrack, 
-+                           struct nf_conn * master_conntrack, 
-+                           enum ip_conntrack_info ctinfo,
-+                           enum ip_conntrack_info master_ctinfo,
-+                           const struct xt_layer7_info * info)
-+{
-+	/* If we're in here, throw the app data away */
-+	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 */
-+	}
-+
-+	if(master_conntrack->layer7.app_proto){
-+		/* Here child connections set their .app_proto (for /proc) */
-+		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");
-+				return 1;
-+			}
-+			strcpy(conntrack->layer7.app_proto, 
-+				master_conntrack->layer7.app_proto);
-+		}
-+
-+		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. */
-+		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");
-+			return 1;
-+		}
-+		strcpy(master_conntrack->layer7.app_proto, "unknown");
-+		return 0;
-+	}
-+}
-+
-+/* add the new app data to the conntrack.  Return number of bytes added. */
-+static int add_data(struct nf_conn * 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') {
-+			/* the kernel version of tolower mungs 'upper ascii' */
-+			master_conntrack->layer7.app_data[length+oldlength] =
-+				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;
-+}
-+
-+/* 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;
-+}
-+
-+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; 
-+
-+	const struct xt_layer7_info * info = matchinfo;
-+	enum ip_conntrack_info master_ctinfo, ctinfo;
-+	struct nf_conn *master_conntrack, *conntrack;
-+	unsigned char * app_data;
-+	unsigned int pattern_result, appdatalen;
-+	regexp * comppattern;
-+
-+	/* Be paranoid/incompetent - lock the entire match function. */
-+	spin_lock_bh(&l7_lock);
-+
-+	if(!can_handle(skb)){
-+		DPRINTK("layer7: This is some protocol I can't handle.\n");
-+		spin_unlock_bh(&l7_lock);
-+		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 = nf_ct_get(skb, &ctinfo)) ||
-+	   !(master_conntrack=nf_ct_get(skb,&master_ctinfo))){
-+		DPRINTK("layer7: couldn't get conntrack.\n");
-+		spin_unlock_bh(&l7_lock);
-+		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. Don't do things twice if there are 
-+		multiple l7 rules. I'm not sure that using cb for this purpose 
-+		is correct, even though 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. */
-+		skb->cb[0] = 1; /* marking it seen here's probably irrelevant */
-+
-+		spin_unlock_bh(&l7_lock);
-+		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");
-+			spin_unlock_bh(&l7_lock);
-+			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_pointer(skb) - app_data;
-+
-+	/* the return value gets checked later, when we're ready to use it */
-+	comppattern = compile_and_cache(info->pattern, info->protocol);
-+
-+	/* On the first packet of a connection, allocate space for app data */
-+	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");
-+			spin_unlock_bh(&l7_lock);
-+			return info->invert;
-+		}
-+
-+		master_conntrack->layer7.app_data[0] = '\0';
-+	}
-+
-+	/* Can be here, but unallocated, if numpackets is increased near
-+	the beginning of a connection */
-+	if(master_conntrack->layer7.app_data == NULL){
-+		spin_unlock_bh(&l7_lock);
-+		return (info->invert); /* unmatched */
-+	}
-+
-+	if(!skb->cb[0]){
-+		int newbytes;
-+		newbytes = add_data(master_conntrack, app_data, appdatalen);
-+
-+		if(newbytes == 0) { /* didn't add any data */
-+			skb->cb[0] = 1;
-+			/* Didn't match before, not going to match now */
-+			spin_unlock_bh(&l7_lock);
-+			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 looking for "unset", then always match. "Unset" means that we
-+	haven't yet classified the connection. */
-+	} else if(!strcmp(info->protocol, "unset")) {
-+		pattern_result = 2;
-+		DPRINTK("layer7: matched unset: not yet classified "
-+			"(%d/%d packets)\n", TOTAL_PACKETS, num_packets);
-+	/* 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 == 1) {
-+		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");
-+			spin_unlock_bh(&l7_lock);
-+			return (pattern_result ^ info->invert);
-+		}
-+		strcpy(master_conntrack->layer7.app_proto, info->protocol);
-+	} else if(pattern_result > 1) { /* cleanup from "unset" */
-+		pattern_result = 1;
-+	}
-+
-+	/* mark the packet seen */
-+	skb->cb[0] = 1;
-+
-+	spin_unlock_bh(&l7_lock);
-+	return (pattern_result ^ info->invert);
-+}
-+
-+static int check(const char *tablename,
-+		 const void *inf,
-+		 const struct xt_match *match,
-+		 void *matchinfo,
-+		 unsigned int hook_mask)
-+
-+{
-+	// load nf_conntrack_ipv4
-+        if (nf_ct_l3proto_try_module_get(match->family) < 0) {
-+                printk(KERN_WARNING "can't load conntrack support for "
-+                                    "proto=%d\n", match->family);
-+                return false;
-+        }
-+	return true;
-+}
-+
-+static void
-+destroy(const struct xt_match *match, void *matchinfo)
-+{
-+	nf_ct_l3proto_module_put(match->family);
-+}
-+
-+static struct xt_match xt_layer7_match[] = {
-+{
-+	.name		= "layer7",
-+	.family		= AF_INET,
-+	.checkentry	= check,
-+	.match		= match,
-+	.destroy	= destroy,
-+	.matchsize	= sizeof(struct xt_layer7_info),
-+	.me		= THIS_MODULE
-+}
-+};
-+
-+static void layer7_cleanup_proc(void)
-+{
-+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
-+	remove_proc_entry("layer7_numpackets", proc_net);
-+#else
-+	remove_proc_entry("layer7_numpackets", init_net.proc_net);
-+#endif
-+}
-+
-+/* register the proc file */
-+static void layer7_init_proc(void)
-+{
-+	struct proc_dir_entry* entry;
-+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
-+	entry = create_proc_entry("layer7_numpackets", 0644, proc_net);
-+#else
-+	entry = create_proc_entry("layer7_numpackets", 0644, init_net.proc_net);
-+#endif
-+	entry->read_proc = layer7_read_proc;
-+	entry->write_proc = layer7_write_proc;
-+}
-+
-+static int __init xt_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 xt_register_matches(xt_layer7_match,
-+				   ARRAY_SIZE(xt_layer7_match));
-+}
-+
-+static void __exit xt_layer7_fini(void)
-+{
-+	layer7_cleanup_proc();
-+	xt_unregister_matches(xt_layer7_match, ARRAY_SIZE(xt_layer7_match));
-+}
-+
-+module_init(xt_layer7_init);
-+module_exit(xt_layer7_fini);
---- /dev/null
-+++ b/net/netfilter/regexp/regexp.c
-@@ -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; &regdummy = 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
-+
-+
---- /dev/null
-+++ b/net/netfilter/regexp/regexp.h
-@@ -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
---- /dev/null
-+++ b/net/netfilter/regexp/regmagic.h
-@@ -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
---- /dev/null
-+++ b/net/netfilter/regexp/regsub.c
-@@ -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 <linux/string.h>
-+
-+
-+#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';
-+}
---- a/net/netfilter/nf_conntrack_core.c
-+++ b/net/netfilter/nf_conntrack_core.c
-@@ -352,6 +352,14 @@ destroy_conntrack(struct nf_conntrack *n
- 	 * too. */
- 	nf_ct_remove_expectations(ct);
- 
-+	#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || defined(CONFIG_NETFILTER_XT_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 (!nf_ct_is_confirmed(ct)) {
- 		BUG_ON(list_empty(&ct->tuplehash[IP_CT_DIR_ORIGINAL].list));
---- a/net/netfilter/nf_conntrack_standalone.c
-+++ b/net/netfilter/nf_conntrack_standalone.c
-@@ -195,7 +195,12 @@ static int ct_seq_show(struct seq_file *
- 		return -ENOSPC;
- #endif
- 
--	if (seq_printf(s, "use=%u\n", atomic_read(&conntrack->ct_general.use)))
-+#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE)
-+	if(conntrack->layer7.app_proto)
-+		if(seq_printf(s, "l7proto=%s ", conntrack->layer7.app_proto))
-+			return -ENOSPC;
-+#endif
-+	if (seq_printf(s, "asdfuse=%u\n", atomic_read(&conntrack->ct_general.use)))
- 		return -ENOSPC;
- 	
- 	return 0;
---- a/include/net/netfilter/nf_conntrack.h
-+++ b/include/net/netfilter/nf_conntrack.h
-@@ -128,6 +128,22 @@ struct nf_conn
- 	u_int32_t secmark;
- #endif
- 
-+#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || \
-+    defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE)
-+	struct {
-+		/*
-+		 * e.g. "http". NULL before decision. "unknown" after decision
-+		 * if no match.
-+		 */
-+		char *app_proto;
-+		/*
-+		 * application layer data so far. NULL after match decision.
-+		 */
-+		char *app_data;
-+		unsigned int app_data_len;
-+	} layer7;
-+#endif
-+
- 	/* Storage reserved for other modules: */
- 	union nf_conntrack_proto proto;
- 
---- /dev/null
-+++ b/include/linux/netfilter/xt_layer7.h
-@@ -0,0 +1,13 @@
-+#ifndef _XT_LAYER7_H
-+#define _XT_LAYER7_H
-+
-+#define MAX_PATTERN_LEN 8192
-+#define MAX_PROTOCOL_LEN 256
-+
-+struct xt_layer7_info {
-+    char protocol[MAX_PROTOCOL_LEN];
-+    char pattern[MAX_PATTERN_LEN];
-+    u_int8_t invert;
-+};
-+
-+#endif /* _XT_LAYER7_H */