From 98e85366c454339817b22a60a223a748c9fe3228 Mon Sep 17 00:00:00 2001 From: jow Date: Thu, 30 Apr 2009 01:31:37 +0000 Subject: [kernel] refreshed layer7 patches for 2.6.26.8, 2.6.27.21, 2.6.28.9 and 2.6.29.1 git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15502 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../101-netfilter_layer7_pktmatch.patch | 36 +++++++++++----------- 1 file changed, 18 insertions(+), 18 deletions(-) (limited to 'target/linux/generic-2.6/patches-2.6.26/101-netfilter_layer7_pktmatch.patch') diff --git a/target/linux/generic-2.6/patches-2.6.26/101-netfilter_layer7_pktmatch.patch b/target/linux/generic-2.6/patches-2.6.26/101-netfilter_layer7_pktmatch.patch index ad0fdb823..8d17ecd0b 100644 --- a/target/linux/generic-2.6/patches-2.6.26/101-netfilter_layer7_pktmatch.patch +++ b/target/linux/generic-2.6/patches-2.6.26/101-netfilter_layer7_pktmatch.patch @@ -1,6 +1,6 @@ --- a/include/linux/netfilter/xt_layer7.h +++ b/include/linux/netfilter/xt_layer7.h -@@ -8,6 +8,7 @@ struct xt_layer7_info { +@@ -8,6 +8,7 @@ char protocol[MAX_PROTOCOL_LEN]; char pattern[MAX_PATTERN_LEN]; u_int8_t invert; @@ -10,7 +10,7 @@ #endif /* _XT_LAYER7_H */ --- a/net/netfilter/xt_layer7.c +++ b/net/netfilter/xt_layer7.c -@@ -297,34 +297,36 @@ static int match_no_append(struct nf_con +@@ -314,34 +314,36 @@ } /* add the new app data to the conntrack. Return number of bytes added. */ @@ -21,12 +21,12 @@ 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 +- /* 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; ++ 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. */ @@ -37,31 +37,31 @@ /* the kernel version of tolower mungs 'upper ascii' */ - master_conntrack->layer7.app_data[length+oldlength] = + target[length+offset] = - isascii(app_data[i])? + isascii(app_data[i])? tolower(app_data[i]) : app_data[i]; length++; } } + target[length+offset] = '\0'; -+ -+ return length; -+} - 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 nf_conn * 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; } -@@ -411,7 +413,7 @@ match(const struct sk_buff *skbin, - const struct xt_layer7_info * info = matchinfo; +@@ -438,7 +440,7 @@ + enum ip_conntrack_info master_ctinfo, ctinfo; struct nf_conn *master_conntrack, *conntrack; - unsigned char * app_data; @@ -69,18 +69,18 @@ unsigned int pattern_result, appdatalen; regexp * comppattern; -@@ -439,8 +441,8 @@ match(const struct sk_buff *skbin, +@@ -466,8 +468,8 @@ master_conntrack = master_ct(master_conntrack); /* if we've classified it or seen too many packets */ -- if(TOTAL_PACKETS > num_packets || +- if(total_acct_packets(master_conntrack) > 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, + pattern_result = match_no_append(conntrack, master_conntrack, ctinfo, master_ctinfo, info); -@@ -473,6 +475,25 @@ match(const struct sk_buff *skbin, +@@ -500,6 +502,25 @@ /* the return value gets checked later, when we're ready to use it */ comppattern = compile_and_cache(info->pattern, info->protocol); @@ -104,5 +104,5 @@ + } + /* On the first packet of a connection, allocate space for app data */ - if(TOTAL_PACKETS == 1 && !skb->cb[0] && + if(total_acct_packets(master_conntrack) == 1 && !skb->cb[0] && !master_conntrack->layer7.app_data){ -- cgit v1.2.3