From 2e3f8c480e4e27cb843553820aff019cf7cb2649 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Sat, 5 May 2012 11:43:34 +0000 Subject: linux/2.6.32: R.I.P. SVN-Revision: 31597 --- .../110-netfilter_match_speedup.patch | 144 --------------------- 1 file changed, 144 deletions(-) delete mode 100644 target/linux/generic/patches-2.6.32/110-netfilter_match_speedup.patch (limited to 'target/linux/generic/patches-2.6.32/110-netfilter_match_speedup.patch') diff --git a/target/linux/generic/patches-2.6.32/110-netfilter_match_speedup.patch b/target/linux/generic/patches-2.6.32/110-netfilter_match_speedup.patch deleted file mode 100644 index 04ba710274..0000000000 --- a/target/linux/generic/patches-2.6.32/110-netfilter_match_speedup.patch +++ /dev/null @@ -1,144 +0,0 @@ ---- a/include/linux/netfilter_ipv4/ip_tables.h -+++ b/include/linux/netfilter_ipv4/ip_tables.h -@@ -62,6 +62,7 @@ struct ipt_ip { - #define IPT_F_FRAG 0x01 /* Set if rule is a fragment rule */ - #define IPT_F_GOTO 0x02 /* Set if jump is a goto */ - #define IPT_F_MASK 0x03 /* All possible flag bits mask. */ -+#define IPT_F_NO_DEF_MATCH 0x80 /* Internal: no default match rules present */ - - /* Values for "inv" field in struct ipt_ip. */ - #define IPT_INV_VIA_IN 0x01 /* Invert the sense of IN IFACE. */ ---- a/net/ipv4/netfilter/ip_tables.c -+++ b/net/ipv4/netfilter/ip_tables.c -@@ -88,6 +88,9 @@ ip_packet_match(const struct iphdr *ip, - - #define FWINV(bool, invflg) ((bool) ^ !!(ipinfo->invflags & (invflg))) - -+ if (ipinfo->flags & IPT_F_NO_DEF_MATCH) -+ return true; -+ - if (FWINV((ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr, - IPT_INV_SRCIP) - || FWINV((ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr, -@@ -138,13 +141,35 @@ ip_packet_match(const struct iphdr *ip, - return false; - } - -+#undef FWINV - return true; - } - - static bool --ip_checkentry(const struct ipt_ip *ip) -+ip_checkentry(struct ipt_ip *ip) - { -- if (ip->flags & ~IPT_F_MASK) { -+#define FWINV(bool, invflg) ((bool) || (ip->invflags & (invflg))) -+ -+ if (FWINV(ip->smsk.s_addr, IPT_INV_SRCIP) || -+ FWINV(ip->dmsk.s_addr, IPT_INV_DSTIP)) -+ goto has_match_rules; -+ -+ if (FWINV(!!((const unsigned long *)ip->iniface_mask)[0], -+ IPT_INV_VIA_IN) || -+ FWINV(!!((const unsigned long *)ip->outiface_mask)[0], -+ IPT_INV_VIA_OUT)) -+ goto has_match_rules; -+ -+ if (FWINV(ip->proto, IPT_INV_PROTO)) -+ goto has_match_rules; -+ -+ if (FWINV(ip->flags&IPT_F_FRAG, IPT_INV_FRAG)) -+ goto has_match_rules; -+ -+ ip->flags |= IPT_F_NO_DEF_MATCH; -+ -+has_match_rules: -+ if (ip->flags & ~(IPT_F_MASK|IPT_F_NO_DEF_MATCH)) { - duprintf("Unknown flag bits set: %08X\n", - ip->flags & ~IPT_F_MASK); - return false; -@@ -154,6 +179,8 @@ ip_checkentry(const struct ipt_ip *ip) - ip->invflags & ~IPT_INV_MASK); - return false; - } -+ -+#undef FWINV - return true; - } - -@@ -196,7 +223,6 @@ static inline bool unconditional(const s - static const struct ipt_ip uncond; - - return memcmp(ip, &uncond, sizeof(uncond)) == 0; --#undef FWINV - } - - #if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \ -@@ -321,8 +347,28 @@ ipt_do_table(struct sk_buff *skb, - struct xt_match_param mtpar; - struct xt_target_param tgpar; - -- /* Initialization */ - ip = ip_hdr(skb); -+ -+ IP_NF_ASSERT(table->valid_hooks & (1 << hook)); -+ xt_info_rdlock_bh(); -+ private = table->private; -+ table_base = private->entries[smp_processor_id()]; -+ e = get_entry(table_base, private->hook_entry[hook]); -+ -+ if (e->target_offset <= sizeof(struct ipt_entry) && -+ (e->ip.flags & IPT_F_NO_DEF_MATCH)) { -+ struct ipt_entry_target *t = ipt_get_target(e); -+ if (!t->u.kernel.target->target) { -+ int v = ((struct ipt_standard_target *)t)->verdict; -+ if ((v < 0) && (v != IPT_RETURN)) { -+ ADD_COUNTER(e->counters, ntohs(ip->tot_len), 1); -+ xt_info_rdunlock_bh(); -+ return (unsigned)(-v) - 1; -+ } -+ } -+ } -+ -+ /* Initialization */ - indev = in ? in->name : nulldevname; - outdev = out ? out->name : nulldevname; - /* We handle fragments by dealing with the first fragment as -@@ -339,13 +385,6 @@ ipt_do_table(struct sk_buff *skb, - mtpar.family = tgpar.family = NFPROTO_IPV4; - mtpar.hooknum = tgpar.hooknum = hook; - -- IP_NF_ASSERT(table->valid_hooks & (1 << hook)); -- xt_info_rdlock_bh(); -- private = table->private; -- table_base = private->entries[smp_processor_id()]; -- -- e = get_entry(table_base, private->hook_entry[hook]); -- - /* For return from builtin chain */ - back = get_entry(table_base, private->underflow[hook]); - -@@ -992,6 +1031,7 @@ copy_entries_to_user(unsigned int total_ - unsigned int i; - const struct ipt_entry_match *m; - const struct ipt_entry_target *t; -+ u8 flags; - - e = (struct ipt_entry *)(loc_cpu_entry + off); - if (copy_to_user(userptr + off -@@ -1001,6 +1041,14 @@ copy_entries_to_user(unsigned int total_ - ret = -EFAULT; - goto free_counters; - } -+ -+ flags = e->ip.flags & ~IPT_F_NO_DEF_MATCH; -+ if (copy_to_user(userptr + off -+ + offsetof(struct ipt_entry, ip.flags), -+ &flags, sizeof(flags)) != 0) { -+ ret = -EFAULT; -+ goto free_counters; -+ } - - for (i = sizeof(struct ipt_entry); - i < e->target_offset; -- cgit v1.2.3