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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2005-11-19 19:24:33 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2005-11-19 19:24:33 +0000
commit9fc79bf2fe5316e25c6fd9c4e4e7f107db3b8106 (patch)
tree6eb7b348f6915c68c0a39c907cbef78b2c3c5821 /target
parent777e76abb47dd74816ea063c471359b0db3aa2e7 (diff)
update layer7 (forward port from whiterussian)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2538 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target')
-rw-r--r--target/linux/linux-2.4/patches/generic/602-netfilter_layer7_1.5nbd.patch (renamed from target/linux/linux-2.4/patches/generic/602-netfilter_layer7.patch)139
1 files changed, 82 insertions, 57 deletions
diff --git a/target/linux/linux-2.4/patches/generic/602-netfilter_layer7.patch b/target/linux/linux-2.4/patches/generic/602-netfilter_layer7_1.5nbd.patch
index 55e817aa4f..1b0e11a11e 100644
--- a/target/linux/linux-2.4/patches/generic/602-netfilter_layer7.patch
+++ b/target/linux/linux-2.4/patches/generic/602-netfilter_layer7_1.5nbd.patch
@@ -1,7 +1,7 @@
-diff -Nurp linux-2.4.30/Documentation/Configure.help linux-2.4.30-layer7/Documentation/Configure.help
---- linux-2.4.30/Documentation/Configure.help 2005-04-03 20:42:19.000000000 -0500
-+++ linux-2.4.30-layer7/Documentation/Configure.help 2005-05-03 18:37:03.000000000 -0500
-@@ -29056,6 +29056,23 @@ CONFIG_SOUND_WM97XX
+diff -urN linux.old/Documentation/Configure.help linux.dev/Documentation/Configure.help
+--- linux.old/Documentation/Configure.help 2005-11-10 16:01:07.645540500 +0100
++++ linux.dev/Documentation/Configure.help 2005-11-10 16:03:00.524595000 +0100
+@@ -29082,6 +29082,23 @@
If unsure, say N.
@@ -25,10 +25,10 @@ diff -Nurp linux-2.4.30/Documentation/Configure.help linux-2.4.30-layer7/Documen
#
# A couple of things I keep forgetting:
# capitalize: AppleTalk, Ethernet, DOS, DMA, FAT, FTP, Internet,
-diff -Nurp linux-2.4.30/include/linux/netfilter_ipv4/ip_conntrack.h linux-2.4.30-layer7/include/linux/netfilter_ipv4/ip_conntrack.h
---- linux-2.4.30/include/linux/netfilter_ipv4/ip_conntrack.h 2005-04-03 20:42:20.000000000 -0500
-+++ linux-2.4.30-layer7/include/linux/netfilter_ipv4/ip_conntrack.h 2005-05-03 18:37:03.000000000 -0500
-@@ -207,6 +207,17 @@ struct ip_conntrack
+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 2005-04-04 03:42:20.000000000 +0200
++++ linux.dev/include/linux/netfilter_ipv4/ip_conntrack.h 2005-11-10 16:03:00.544596250 +0100
+@@ -207,6 +207,17 @@
} nat;
#endif /* CONFIG_IP_NF_NAT_NEEDED */
@@ -46,10 +46,10 @@ diff -Nurp linux-2.4.30/include/linux/netfilter_ipv4/ip_conntrack.h linux-2.4.30
};
/* get master conntrack via master expectation */
-diff -Nurp linux-2.4.30/include/linux/netfilter_ipv4/ipt_layer7.h linux-2.4.30-layer7/include/linux/netfilter_ipv4/ipt_layer7.h
---- linux-2.4.30/include/linux/netfilter_ipv4/ipt_layer7.h 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/include/linux/netfilter_ipv4/ipt_layer7.h 2005-05-03 18:37:03.000000000 -0500
-@@ -0,0 +1,26 @@
+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 2005-11-10 17:22:12.777440750 +0100
+@@ -0,0 +1,27 @@
+/*
+ By Matthew Strait <quadong@users.sf.net>, Dec 2003.
+ http://l7-filter.sf.net
@@ -73,13 +73,14 @@ diff -Nurp linux-2.4.30/include/linux/netfilter_ipv4/ipt_layer7.h linux-2.4.30-l
+ char protocol[MAX_PROTOCOL_LEN];
+ char invert:1;
+ char pattern[MAX_PATTERN_LEN];
++ char pkt;
+};
+
+#endif /* _IPT_LAYER7_H */
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/Config.in linux-2.4.30-layer7/net/ipv4/netfilter/Config.in
---- linux-2.4.30/net/ipv4/netfilter/Config.in 2005-01-19 08:10:13.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/Config.in 2005-05-03 18:37:03.000000000 -0500
-@@ -43,6 +43,10 @@ if [ "$CONFIG_IP_NF_IPTABLES" != "n" ];
+diff -urN linux.old/net/ipv4/netfilter/Config.in linux.dev/net/ipv4/netfilter/Config.in
+--- linux.old/net/ipv4/netfilter/Config.in 2005-11-10 16:01:16.194074750 +0100
++++ linux.dev/net/ipv4/netfilter/Config.in 2005-11-10 16:03:00.576598250 +0100
+@@ -44,6 +44,10 @@
if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
dep_tristate ' Unclean match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_UNCLEAN $CONFIG_IP_NF_IPTABLES
dep_tristate ' Owner match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_OWNER $CONFIG_IP_NF_IPTABLES
@@ -90,10 +91,10 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/Config.in linux-2.4.30-layer7/net/ipv
fi
# The targets
dep_tristate ' Packet filtering' CONFIG_IP_NF_FILTER $CONFIG_IP_NF_IPTABLES
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/Makefile linux-2.4.30-layer7/net/ipv4/netfilter/Makefile
---- linux-2.4.30/net/ipv4/netfilter/Makefile 2003-08-25 06:44:44.000000000 -0500
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/Makefile 2005-05-03 18:44:12.000000000 -0500
-@@ -86,6 +86,7 @@ obj-$(CONFIG_IP_NF_MATCH_STATE) += ipt_s
+diff -urN linux.old/net/ipv4/netfilter/Makefile linux.dev/net/ipv4/netfilter/Makefile
+--- linux.old/net/ipv4/netfilter/Makefile 2005-11-10 16:01:16.210075750 +0100
++++ linux.dev/net/ipv4/netfilter/Makefile 2005-11-10 16:03:00.576598250 +0100
+@@ -87,6 +87,7 @@
obj-$(CONFIG_IP_NF_MATCH_CONNTRACK) += ipt_conntrack.o
obj-$(CONFIG_IP_NF_MATCH_UNCLEAN) += ipt_unclean.o
obj-$(CONFIG_IP_NF_MATCH_TCPMSS) += ipt_tcpmss.o
@@ -101,10 +102,10 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/Makefile linux-2.4.30-layer7/net/ipv4
# targets
obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/ip_conntrack_core.c linux-2.4.30-layer7/net/ipv4/netfilter/ip_conntrack_core.c
---- linux-2.4.30/net/ipv4/netfilter/ip_conntrack_core.c 2005-04-03 20:42:20.000000000 -0500
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/ip_conntrack_core.c 2005-05-03 18:37:03.000000000 -0500
-@@ -346,6 +346,14 @@ destroy_conntrack(struct nf_conntrack *n
+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 2005-04-04 03:42:20.000000000 +0200
++++ linux.dev/net/ipv4/netfilter/ip_conntrack_core.c 2005-11-10 16:03:00.584598750 +0100
+@@ -346,6 +346,14 @@
}
kfree(ct->master);
}
@@ -119,10 +120,10 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/ip_conntrack_core.c linux-2.4.30-laye
WRITE_UNLOCK(&ip_conntrack_lock);
if (master)
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/ip_conntrack_standalone.c linux-2.4.30-layer7/net/ipv4/netfilter/ip_conntrack_standalone.c
---- linux-2.4.30/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-04-03 20:42:20.000000000 -0500
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-05-03 18:37:03.000000000 -0500
-@@ -107,6 +107,13 @@ print_conntrack(char *buffer, struct ip_
+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 2005-04-04 03:42:20.000000000 +0200
++++ linux.dev/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-11-10 16:03:00.592599250 +0100
+@@ -107,6 +107,13 @@
len += sprintf(buffer + len, "[ASSURED] ");
len += sprintf(buffer + len, "use=%u ",
atomic_read(&conntrack->ct_general.use));
@@ -136,10 +137,10 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/ip_conntrack_standalone.c linux-2.4.3
len += sprintf(buffer + len, "\n");
return len;
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/ipt_layer7.c linux-2.4.30-layer7/net/ipv4/netfilter/ipt_layer7.c
---- linux-2.4.30/net/ipv4/netfilter/ipt_layer7.c 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/ipt_layer7.c 2005-05-03 18:37:03.000000000 -0500
-@@ -0,0 +1,557 @@
+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 2005-11-10 16:55:35.238845250 +0100
+@@ -0,0 +1,581 @@
+/*
+ Kernel module to match application layer (OSI layer 7)
+ data in connections.
@@ -434,27 +435,34 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/ipt_layer7.c linux-2.4.30-layer7/net/
+ }
+}
+
-+/* 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;
-+
++
+ /* 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 < CONFIG_IP_NF_MATCH_LAYER7_MAXDATALEN-oldlength-1 &&
-+ i < appdatalen; i++) {
++ for(i = 0; i < CONFIG_IP_NF_MATCH_LAYER7_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;
+}
@@ -467,7 +475,7 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/ipt_layer7.c linux-2.4.30-layer7/net/
+ 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;
+
@@ -497,8 +505,8 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/ipt_layer7.c linux-2.4.30-layer7/net/
+ }
+
+ /* 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);
+
@@ -529,6 +537,23 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/ipt_layer7.c linux-2.4.30-layer7/net/
+ comppattern = compile_and_cache(info->pattern, info->protocol);
+ UNLOCK_BH(&list_lock);
+
++ if (info->pkt) {
++ tmp_data = kmalloc(CONFIG_IP_NF_MATCH_LAYER7_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) {
@@ -697,9 +722,9 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/ipt_layer7.c linux-2.4.30-layer7/net/
+
+module_init(init);
+module_exit(fini);
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regexp.c linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regexp.c
---- linux-2.4.30/net/ipv4/netfilter/regexp/regexp.c 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regexp.c 2005-05-03 18:37:03.000000000 -0500
+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 2005-11-10 16:03:00.596599500 +0100
@@ -0,0 +1,1195 @@
+/*
+ * regcomp and regexec -- regsub and regerror are elsewhere
@@ -1896,9 +1921,9 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regexp.c linux-2.4.30-layer7/n
+#endif
+
+
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regexp.h linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regexp.h
---- linux-2.4.30/net/ipv4/netfilter/regexp/regexp.h 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regexp.h 2005-05-03 18:37:03.000000000 -0500
+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 2005-11-10 16:03:00.596599500 +0100
@@ -0,0 +1,40 @@
+/*
+ * Definitions etc. for regexp(3) routines.
@@ -1940,18 +1965,18 @@ diff -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regexp.h linux-2.4.30-layer7/n
+void regerror(char *s);
+
+#endif
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regmagic.h linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regmagic.h
---- linux-2.4.30/net/ipv4/netfilter/regexp/regmagic.h 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regmagic.h 2005-05-03 18:37:03.000000000 -0500
+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 2005-11-10 16:03:00.596599500 +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 -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regsub.c linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regsub.c
---- linux-2.4.30/net/ipv4/netfilter/regexp/regsub.c 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regsub.c 2005-05-03 18:37:03.000000000 -0500
+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 2005-11-10 16:03:00.596599500 +0100
@@ -0,0 +1,95 @@
+/*
+ * regsub