CONFIG_IP_NF_AMANDA=m
CONFIG_IP_NF_TFTP=m
CONFIG_IP_NF_IRC=y
+CONFIG_IP_NF_CT_ACCT=m
+CONFIG_IP_NF_MATCH_CONNBYTES=m
CONFIG_IP_NF_CT_PROTO_GRE=m
CONFIG_IP_NF_PPTP=m
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_LIMIT=m
+CONFIG_IP_NF_MATCH_QUOTA=m
CONFIG_IP_NF_SET=m
CONFIG_IP_NF_SET_MAX=256
CONFIG_IP_NF_SET_HASHSIZE=1024
CONFIG_IP_NF_MATCH_MARK=y
CONFIG_IP_NF_MATCH_MULTIPORT=y
CONFIG_IP_NF_MATCH_TOS=m
+CONFIG_IP_NF_MATCH_CONDITION=m
CONFIG_IP_NF_MATCH_RECENT=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_IPP2P=m
CONFIG_IP_NF_MATCH_CONNTRACK=m
CONFIG_IP_NF_MATCH_CONNMARK=m
CONFIG_IP_NF_MATCH_UNCLEAN=m
+CONFIG_IP_NF_MATCH_STRING=m
CONFIG_IP_NF_MATCH_OWNER=m
CONFIG_IP_NF_MATCH_LAYER7=m
# CONFIG_IP_NF_MATCH_LAYER7_DEBUG is not set
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_LIMIT=m
+CONFIG_IP6_NF_MATCH_CONDITION=m
CONFIG_IP6_NF_MATCH_MAC=m
# CONFIG_IP6_NF_MATCH_RT is not set
# CONFIG_IP6_NF_MATCH_OPTS is not set
CONFIG_IP_NF_AMANDA=m
CONFIG_IP_NF_TFTP=m
CONFIG_IP_NF_IRC=y
+CONFIG_IP_NF_CT_ACCT=m
+CONFIG_IP_NF_MATCH_CONNBYTES=m
CONFIG_IP_NF_CT_PROTO_GRE=m
CONFIG_IP_NF_PPTP=m
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_LIMIT=m
+CONFIG_IP_NF_MATCH_QUOTA=m
CONFIG_IP_NF_SET=m
CONFIG_IP_NF_SET_MAX=256
CONFIG_IP_NF_SET_HASHSIZE=1024
CONFIG_IP_NF_MATCH_MARK=y
CONFIG_IP_NF_MATCH_MULTIPORT=y
CONFIG_IP_NF_MATCH_TOS=m
+CONFIG_IP_NF_MATCH_CONDITION=m
CONFIG_IP_NF_MATCH_RECENT=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_IPP2P=m
CONFIG_IP_NF_MATCH_CONNTRACK=m
CONFIG_IP_NF_MATCH_CONNMARK=m
CONFIG_IP_NF_MATCH_UNCLEAN=m
+CONFIG_IP_NF_MATCH_STRING=m
CONFIG_IP_NF_MATCH_OWNER=m
CONFIG_IP_NF_MATCH_LAYER7=m
# CONFIG_IP_NF_MATCH_LAYER7_DEBUG is not set
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_LIMIT=m
+CONFIG_IP6_NF_MATCH_CONDITION=m
CONFIG_IP6_NF_MATCH_MAC=m
# CONFIG_IP6_NF_MATCH_RT is not set
# CONFIG_IP6_NF_MATCH_OPTS is not set
CONFIG_IP_NF_AMANDA=m
CONFIG_IP_NF_TFTP=m
CONFIG_IP_NF_IRC=y
+CONFIG_IP_NF_CT_ACCT=m
+CONFIG_IP_NF_MATCH_CONNBYTES=m
CONFIG_IP_NF_CT_PROTO_GRE=m
CONFIG_IP_NF_PPTP=m
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_LIMIT=m
+CONFIG_IP_NF_MATCH_QUOTA=m
+CONFIG_IP_NF_SET=m
+CONFIG_IP_NF_SET_MAX=256
+CONFIG_IP_NF_SET_HASHSIZE=1024
+CONFIG_IP_NF_MATCH_SET=m
+CONFIG_IP_NF_TARGET_SET=m
+CONFIG_IP_NF_SET_IPMAP=m
+CONFIG_IP_NF_SET_PORTMAP=m
+CONFIG_IP_NF_SET_MACIPMAP=m
+CONFIG_IP_NF_SET_IPHASH=m
+CONFIG_IP_NF_SET_NETHASH=m
+CONFIG_IP_NF_SET_IPTREE=m
CONFIG_IP_NF_MATCH_MAC=m
CONFIG_IP_NF_MATCH_PKTTYPE=m
CONFIG_IP_NF_MATCH_MARK=y
CONFIG_IP_NF_MATCH_MULTIPORT=y
CONFIG_IP_NF_MATCH_TOS=m
+CONFIG_IP_NF_MATCH_CONDITION=m
CONFIG_IP_NF_MATCH_RECENT=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_IPP2P=m
CONFIG_IP_NF_MATCH_CONNTRACK=m
CONFIG_IP_NF_MATCH_CONNMARK=m
CONFIG_IP_NF_MATCH_UNCLEAN=m
+CONFIG_IP_NF_MATCH_STRING=m
CONFIG_IP_NF_MATCH_OWNER=m
CONFIG_IP_NF_MATCH_LAYER7=m
# CONFIG_IP_NF_MATCH_LAYER7_DEBUG is not set
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
-CONFIG_IP_NF_SET=m
-CONFIG_IP_NF_SET_MAX=256
-CONFIG_IP_NF_SET_HASHSIZE=1024
-CONFIG_IP_NF_MATCH_SET=m
-CONFIG_IP_NF_TARGET_SET=m
-CONFIG_IP_NF_SET_IPMAP=m
-CONFIG_IP_NF_SET_PORTMAP=m
-CONFIG_IP_NF_SET_MACIPMAP=m
-CONFIG_IP_NF_SET_IPHASH=m
-CONFIG_IP_NF_SET_NETHASH=m
-CONFIG_IP_NF_SET_IPTREE=m
#
# IP: Virtual Server Configuration
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_LIMIT=m
+CONFIG_IP6_NF_MATCH_CONDITION=m
CONFIG_IP6_NF_MATCH_MAC=m
# CONFIG_IP6_NF_MATCH_RT is not set
# CONFIG_IP6_NF_MATCH_OPTS is not set
--- /dev/null
+--- linux/net/ipv4/netfilter/Config.in.org 2005-11-08 23:11:47.011929664 +0100
++++ linux/net/ipv4/netfilter/Config.in 2005-11-08 23:10:33.329131152 +0100
+@@ -50,6 +50,7 @@
+ fi
+ if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
+ dep_tristate ' Unclean match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_UNCLEAN $CONFIG_IP_NF_IPTABLES
++ dep_tristate ' String match support (EXPERIMENTAL) ' CONFIG_IP_NF_MATCH_STRING $CONFIG_IP_NF_IPTABLES
+ dep_tristate ' Owner match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_OWNER $CONFIG_IP_NF_IPTABLES
+ dep_tristate ' Layer 7 match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_LAYER7 $CONFIG_IP_NF_CONNTRACK
+ dep_mbool ' Layer 7 debugging output (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_LAYER7_DEBUG $CONFIG_IP_NF_MATCH_LAYER7
+--- linux/net/ipv4/netfilter/Makefile.org 2005-11-08 23:11:57.214378656 +0100
++++ linux/net/ipv4/netfilter/Makefile 2005-11-08 23:11:20.980886984 +0100
+@@ -97,6 +97,7 @@
+ obj-$(CONFIG_IP_NF_MATCH_CONNBYTES) += ipt_connbytes.o
+ obj-$(CONFIG_IP_NF_MATCH_CONNTRACK) += ipt_conntrack.o
+ obj-$(CONFIG_IP_NF_MATCH_UNCLEAN) += ipt_unclean.o
++obj-$(CONFIG_IP_NF_MATCH_STRING) += ipt_string.o
+ obj-$(CONFIG_IP_NF_MATCH_TCPMSS) += ipt_tcpmss.o
+
+ obj-$(CONFIG_IP_NF_MATCH_LAYER7) += ipt_layer7.o
+--- linux/net/ipv4/netfilter/ipt_string.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/net/ipv4/netfilter/ipt_string.c 2005-11-08 23:08:51.531606728 +0100
+@@ -0,0 +1,218 @@
++/* Kernel module to match a string into a packet.
++ *
++ * Copyright (C) 2000 Emmanuel Roger <winfield@freegates.be>
++ *
++ * ChangeLog
++ * 19.02.2002: Gianni Tedesco <gianni@ecsc.co.uk>
++ * Fixed SMP re-entrancy problem using per-cpu data areas
++ * for the skip/shift tables.
++ * 02.05.2001: Gianni Tedesco <gianni@ecsc.co.uk>
++ * Fixed kernel panic, due to overrunning boyer moore string
++ * tables. Also slightly tweaked heuristic for deciding what
++ * search algo to use.
++ * 27.01.2001: Gianni Tedesco <gianni@ecsc.co.uk>
++ * Implemented Boyer Moore Sublinear search algorithm
++ * alongside the existing linear search based on memcmp().
++ * Also a quick check to decide which method to use on a per
++ * packet basis.
++ */
++
++#include <linux/smp.h>
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/file.h>
++#include <net/sock.h>
++
++#include <linux/netfilter_ipv4/ip_tables.h>
++#include <linux/netfilter_ipv4/ipt_string.h>
++
++MODULE_LICENSE("GPL");
++
++struct string_per_cpu {
++ int *skip;
++ int *shift;
++ int *len;
++};
++
++struct string_per_cpu *bm_string_data=NULL;
++
++/* Boyer Moore Sublinear string search - VERY FAST */
++char *search_sublinear (char *needle, char *haystack, int needle_len, int haystack_len)
++{
++ int M1, right_end, sk, sh;
++ int ended, j, i;
++
++ int *skip, *shift, *len;
++
++ /* use data suitable for this CPU */
++ shift=bm_string_data[smp_processor_id()].shift;
++ skip=bm_string_data[smp_processor_id()].skip;
++ len=bm_string_data[smp_processor_id()].len;
++
++ /* Setup skip/shift tables */
++ M1 = right_end = needle_len-1;
++ for (i = 0; i < BM_MAX_HLEN; i++) skip[i] = needle_len;
++ for (i = 0; needle[i]; i++) skip[needle[i]] = M1 - i;
++
++ for (i = 1; i < needle_len; i++) {
++ for (j = 0; j < needle_len && needle[M1 - j] == needle[M1 - i - j]; j++);
++ len[i] = j;
++ }
++
++ shift[0] = 1;
++ for (i = 1; i < needle_len; i++) shift[i] = needle_len;
++ for (i = M1; i > 0; i--) shift[len[i]] = i;
++ ended = 0;
++
++ for (i = 0; i < needle_len; i++) {
++ if (len[i] == M1 - i) ended = i;
++ if (ended) shift[i] = ended;
++ }
++
++ /* Do the search*/
++ while (right_end < haystack_len)
++ {
++ for (i = 0; i < needle_len && haystack[right_end - i] == needle[M1 - i]; i++);
++ if (i == needle_len) {
++ return haystack+(right_end - M1);
++ }
++
++ sk = skip[haystack[right_end - i]];
++ sh = shift[i];
++ right_end = max(right_end - i + sk, right_end + sh);
++ }
++
++ return NULL;
++}
++
++/* Linear string search based on memcmp() */
++char *search_linear (char *needle, char *haystack, int needle_len, int haystack_len)
++{
++ char *k = haystack + (haystack_len-needle_len);
++ char *t = haystack;
++
++ while ( t <= k ) {
++ if (memcmp(t, needle, needle_len) == 0)
++ return t;
++ t++;
++ }
++
++ return NULL;
++}
++
++
++static int
++match(const struct sk_buff *skb,
++ const struct net_device *in,
++ const struct net_device *out,
++ const void *matchinfo,
++ int offset,
++ const void *hdr,
++ u_int16_t datalen,
++ int *hotdrop)
++{
++ const struct ipt_string_info *info = matchinfo;
++ struct iphdr *ip = skb->nh.iph;
++ int hlen, nlen;
++ char *needle, *haystack;
++ proc_ipt_search search=search_linear;
++
++ if ( !ip ) return 0;
++
++ /* get lenghts, and validate them */
++ nlen=info->len;
++ hlen=ntohs(ip->tot_len)-(ip->ihl*4);
++ if ( nlen > hlen ) return 0;
++
++ needle=(char *)&info->string;
++ haystack=(char *)ip+(ip->ihl*4);
++
++ /* The sublinear search comes in to its own
++ * on the larger packets */
++ if ( (hlen>IPT_STRING_HAYSTACK_THRESH) &&
++ (nlen>IPT_STRING_NEEDLE_THRESH) ) {
++ if ( hlen < BM_MAX_HLEN ) {
++ search=search_sublinear;
++ }else{
++ if (net_ratelimit())
++ printk(KERN_INFO "ipt_string: Packet too big "
++ "to attempt sublinear string search "
++ "(%d bytes)\n", hlen );
++ }
++ }
++
++ return ((search(needle, haystack, nlen, hlen)!=NULL) ^ info->invert);
++}
++
++static int
++checkentry(const char *tablename,
++ const struct ipt_ip *ip,
++ void *matchinfo,
++ unsigned int matchsize,
++ unsigned int hook_mask)
++{
++
++ if (matchsize != IPT_ALIGN(sizeof(struct ipt_string_info)))
++ return 0;
++
++ return 1;
++}
++
++void string_freeup_data(void)
++{
++ int c;
++
++ if ( bm_string_data ) {
++ for(c=0; c<smp_num_cpus; c++) {
++ if ( bm_string_data[c].shift ) kfree(bm_string_data[c].shift);
++ if ( bm_string_data[c].skip ) kfree(bm_string_data[c].skip);
++ if ( bm_string_data[c].len ) kfree(bm_string_data[c].len);
++ }
++ kfree(bm_string_data);
++ }
++}
++
++static struct ipt_match string_match
++= { { NULL, NULL }, "string", &match, &checkentry, NULL, THIS_MODULE };
++
++static int __init init(void)
++{
++ int c;
++ size_t tlen;
++ size_t alen;
++
++ tlen=sizeof(struct string_per_cpu)*smp_num_cpus;
++ alen=sizeof(int)*BM_MAX_HLEN;
++
++ /* allocate array of structures */
++ if ( !(bm_string_data=kmalloc(tlen,GFP_KERNEL)) ) {
++ return 0;
++ }
++
++ memset(bm_string_data, 0, tlen);
++
++ /* allocate our skip/shift tables */
++ for(c=0; c<smp_num_cpus; c++) {
++ if ( !(bm_string_data[c].shift=kmalloc(alen, GFP_KERNEL)) )
++ goto alloc_fail;
++ if ( !(bm_string_data[c].skip=kmalloc(alen, GFP_KERNEL)) )
++ goto alloc_fail;
++ if ( !(bm_string_data[c].len=kmalloc(alen, GFP_KERNEL)) )
++ goto alloc_fail;
++ }
++
++ return ipt_register_match(&string_match);
++
++alloc_fail:
++ string_freeup_data();
++ return 0;
++}
++
++static void __exit fini(void)
++{
++ ipt_unregister_match(&string_match);
++ string_freeup_data();
++}
++
++module_init(init);
++module_exit(fini);
+--- linux/include/linux/netfilter_ipv4/ipt_string.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/include/linux/netfilter_ipv4/ipt_string.h 2005-11-08 23:09:45.219444936 +0100
+@@ -0,0 +1,21 @@
++#ifndef _IPT_STRING_H
++#define _IPT_STRING_H
++
++/* *** PERFORMANCE TWEAK ***
++ * Packet size and search string threshold,
++ * above which sublinear searches is used. */
++#define IPT_STRING_HAYSTACK_THRESH 100
++#define IPT_STRING_NEEDLE_THRESH 20
++
++#define BM_MAX_NLEN 256
++#define BM_MAX_HLEN 1024
++
++typedef char *(*proc_ipt_search) (char *, char *, int, int);
++
++struct ipt_string_info {
++ char string[BM_MAX_NLEN];
++ u_int16_t invert;
++ u_int16_t len;
++};
++
++#endif /* _IPT_STRING_H */
--- /dev/null
+--- linux/net/ipv4/netfilter/Config.in.org 2005-11-13 15:53:59.457222512 +0100
++++ linux/net/ipv4/netfilter/Config.in 2005-11-13 15:56:25.241060000 +0100
+@@ -11,6 +11,8 @@
+ dep_tristate ' Amanda protocol support' CONFIG_IP_NF_AMANDA $CONFIG_IP_NF_CONNTRACK
+ dep_tristate ' TFTP protocol support' CONFIG_IP_NF_TFTP $CONFIG_IP_NF_CONNTRACK
+ dep_tristate ' IRC protocol support' CONFIG_IP_NF_IRC $CONFIG_IP_NF_CONNTRACK
++ dep_tristate ' Connection tracking flow accounting' CONFIG_IP_NF_CT_ACCT $CONFIG_IP_NF_CONNTRACK
++ dep_tristate ' Connection byte counter support' CONFIG_IP_NF_MATCH_CONNBYTES $CONFIG_IP_NF_CT_ACCT $CONFIG_IP_NF_CONNTRACK $CONFIG_IP_NF_IPTABLES
+ dep_tristate ' GRE protocol support' CONFIG_IP_NF_CT_PROTO_GRE $CONFIG_IP_NF_CONNTRACK
+ dep_tristate ' PPTP protocol support' CONFIG_IP_NF_PPTP $CONFIG_IP_NF_CT_PROTO_GRE
+ fi
+--- linux/net/ipv4/netfilter/Makefile.org 2005-11-12 16:48:38.000000000 +0100
++++ linux/net/ipv4/netfilter/Makefile 2005-11-13 15:56:38.663019552 +0100
+@@ -94,6 +94,7 @@
+ obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o
+ obj-$(CONFIG_IP_NF_MATCH_STATE) += ipt_state.o
+ obj-$(CONFIG_IP_NF_MATCH_CONNMARK) += ipt_connmark.o
++obj-$(CONFIG_IP_NF_MATCH_CONNBYTES) += ipt_connbytes.o
+ obj-$(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
+--- linux/net/ipv4/netfilter/ip_conntrack_amanda.c.org 2004-02-18 14:36:32.000000000 +0100
++++ linux/net/ipv4/netfilter/ip_conntrack_amanda.c 2005-11-13 15:40:00.000000000 +0100
+@@ -75,7 +75,7 @@
+
+ /* increase the UDP timeout of the master connection as replies from
+ * Amanda clients to the server can be quite delayed */
+- ip_ct_refresh(ct, master_timeout * HZ);
++ ip_ct_refresh_acct(ct,ctinfo,NULL, master_timeout * HZ);
+
+ /* Search for "CONNECT " string */
+ do {
+--- linux/net/ipv4/netfilter/ip_conntrack_proto_tcp.c.org 2003-11-28 19:26:21.000000000 +0100
++++ linux/net/ipv4/netfilter/ip_conntrack_proto_tcp.c 2005-11-13 15:45:41.045992536 +0100
+@@ -211,7 +211,7 @@
+ set_bit(IPS_ASSURED_BIT, &conntrack->status);
+
+ WRITE_UNLOCK(&tcp_lock);
+- ip_ct_refresh(conntrack, *tcp_timeouts[newconntrack]);
++ ip_ct_refresh_acct(conntrack,ctinfo,iph, *tcp_timeouts[newconntrack]);
+ }
+
+ return NF_ACCEPT;
+--- linux/net/ipv4/netfilter/ip_conntrack_proto_udp.c.org 2003-11-28 19:26:21.000000000 +0100
++++ linux/net/ipv4/netfilter/ip_conntrack_proto_udp.c 2005-11-13 15:47:38.348159896 +0100
+@@ -47,16 +47,16 @@
+ /* Returns verdict for packet, and may modify conntracktype */
+ static int udp_packet(struct ip_conntrack *conntrack,
+ struct iphdr *iph, size_t len,
+- enum ip_conntrack_info conntrackinfo)
++ enum ip_conntrack_info ctinfo)
+ {
+ /* If we've seen traffic both ways, this is some kind of UDP
+ stream. Extend timeout. */
+ if (test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)) {
+- ip_ct_refresh(conntrack, ip_ct_udp_timeout_stream);
++ ip_ct_refresh_acct(conntrack,ctinfo,iph,ip_ct_udp_timeout_stream);
+ /* Also, more likely to be important, and not a probe */
+ set_bit(IPS_ASSURED_BIT, &conntrack->status);
+ } else
+- ip_ct_refresh(conntrack, ip_ct_udp_timeout);
++ ip_ct_refresh_acct(conntrack,ctinfo,iph, ip_ct_udp_timeout);
+
+ return NF_ACCEPT;
+ }
+--- linux/net/ipv4/netfilter/ip_conntrack_standalone.c.org 2005-11-12 16:48:38.000000000 +0100
++++ linux/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-11-13 15:51:07.608347512 +0100
+@@ -79,6 +79,18 @@
+ return len;
+ }
+
++#if defined(CONFIG_IP_NF_CT_ACCT) || \
++ defined(CONFIG_IP_NF_CT_ACCT_MODULE)
++static unsigned int
++print_counters(char *buffer, struct ip_conntrack_counter *counter)
++{
++ return sprintf(buffer, "packets=%llu bytes=%llu ",
++ counter->packets, counter->bytes);
++}
++#else
++#define print_counters(x, y) 0
++#endif
++
+ static unsigned int
+ print_conntrack(char *buffer, struct ip_conntrack *conntrack)
+ {
+@@ -98,11 +110,15 @@
+ len += print_tuple(buffer + len,
+ &conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
+ proto);
++ len += print_counters(buffer + len,
++ &conntrack->counters[IP_CT_DIR_ORIGINAL]);
+ if (!(test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)))
+ len += sprintf(buffer + len, "[UNREPLIED] ");
+ len += print_tuple(buffer + len,
+ &conntrack->tuplehash[IP_CT_DIR_REPLY].tuple,
+ proto);
++ len += print_counters(buffer + len,
++ &conntrack->counters[IP_CT_DIR_REPLY]);
+ if (test_bit(IPS_ASSURED_BIT, &conntrack->status))
+ len += sprintf(buffer + len, "[ASSURED] ");
+ len += sprintf(buffer + len, "use=%u ",
+@@ -478,7 +494,7 @@
+ EXPORT_SYMBOL(ip_conntrack_helper_register);
+ EXPORT_SYMBOL(ip_conntrack_helper_unregister);
+ EXPORT_SYMBOL(ip_ct_iterate_cleanup);
+-EXPORT_SYMBOL(ip_ct_refresh);
++EXPORT_SYMBOL(ip_ct_refresh_acct);
+ EXPORT_SYMBOL(ip_ct_find_proto);
+ EXPORT_SYMBOL(__ip_ct_find_proto);
+ EXPORT_SYMBOL(ip_ct_find_helper);
+--- linux/net/ipv4/netfilter/ip_conntrack_proto_generic.c.org 2003-11-28 19:26:21.000000000 +0100
++++ linux/net/ipv4/netfilter/ip_conntrack_proto_generic.c 2005-11-13 15:44:20.734201784 +0100
+@@ -41,9 +41,9 @@
+ /* Returns verdict for packet, or -1 for invalid. */
+ static int established(struct ip_conntrack *conntrack,
+ struct iphdr *iph, size_t len,
+- enum ip_conntrack_info conntrackinfo)
++ enum ip_conntrack_info ctinfo)
+ {
+- ip_ct_refresh(conntrack, ip_ct_generic_timeout);
++ ip_ct_refresh_acct(conntrack, ctinfo,iph,ip_ct_generic_timeout);
+ return NF_ACCEPT;
+ }
+
+--- linux/net/ipv4/netfilter/ip_conntrack_proto_icmp.c.org 2003-11-28 19:26:21.000000000 +0100
++++ linux/net/ipv4/netfilter/ip_conntrack_proto_icmp.c 2005-11-13 15:44:50.733641176 +0100
+@@ -82,7 +82,7 @@
+ ct->timeout.function((unsigned long)ct);
+ } else {
+ atomic_inc(&ct->proto.icmp.count);
+- ip_ct_refresh(ct, ip_ct_icmp_timeout);
++ ip_ct_refresh_acct(ct,ctinfo,iph, ip_ct_icmp_timeout);
+ }
+
+ return NF_ACCEPT;
+--- linux/net/ipv4/netfilter/ip_conntrack_core.c.org 2005-11-12 16:48:38.000000000 +0100
++++ linux/net/ipv4/netfilter/ip_conntrack_core.c 2005-11-13 15:43:23.882844504 +0100
+@@ -1196,22 +1196,40 @@
+
+ MOD_DEC_USE_COUNT;
+ }
++static inline void ct_add_counters(struct ip_conntrack *ct,
++ enum ip_conntrack_info ctinfo,
++ const struct iphdr *iph)
++{
++#if defined(CONFIG_IP_NF_CT_ACCT) || \
++ defined(CONFIG_IP_NF_CT_ACCT_MODULE)
++ if (iph) {
++ ct->counters[CTINFO2DIR(ctinfo)].packets++;
++ ct->counters[CTINFO2DIR(ctinfo)].bytes +=
++ ntohs(iph->tot_len);
++ }
++#endif
++}
+
+ /* Refresh conntrack for this many jiffies. */
+-void ip_ct_refresh(struct ip_conntrack *ct, unsigned long extra_jiffies)
++void ip_ct_refresh_acct(struct ip_conntrack *ct,
++ enum ip_conntrack_info ctinfo,
++ const struct iphdr *iph,
++ unsigned long extra_jiffies)
+ {
+ IP_NF_ASSERT(ct->timeout.data == (unsigned long)ct);
+
+ WRITE_LOCK(&ip_conntrack_lock);
+ /* If not in hash table, timer will not be active yet */
+- if (!is_confirmed(ct))
++ if (!is_confirmed(ct)) {
+ ct->timeout.expires = extra_jiffies;
+- else {
++ ct_add_counters(ct, ctinfo,iph);
++ } else {
+ /* Need del_timer for race avoidance (may already be dying). */
+ if (del_timer(&ct->timeout)) {
+ ct->timeout.expires = jiffies + extra_jiffies;
+ add_timer(&ct->timeout);
+ }
++ ct_add_counters(ct, ctinfo, iph);
+ }
+ WRITE_UNLOCK(&ip_conntrack_lock);
+ }
+--- linux/include/linux/netfilter_ipv4/ip_conntrack.h.org 2005-11-12 16:48:38.000000000 +0100
++++ linux/include/linux/netfilter_ipv4/ip_conntrack.h 2005-11-13 15:39:04.000000000 +0100
+@@ -164,6 +164,12 @@
+ union ip_conntrack_expect_help help;
+ };
+
++struct ip_conntrack_counter
++{
++ u_int64_t packets;
++ u_int64_t bytes;
++};
++
+ struct ip_conntrack_helper;
+
+ struct ip_conntrack
+@@ -181,6 +187,12 @@
+ /* Timer function; drops refcnt when it goes off. */
+ struct timer_list timeout;
+
++#if defined(CONFIG_IP_NF_CT_ACCT) || \
++ defined(CONFIG_IP_NF_CT_ACCT_MODULE)
++ /* Accounting Information (same cache line as other written members) */
++ struct ip_conntrack_counter counters[IP_CT_DIR_MAX];
++#endif
++
+ /* If we're expecting another related connection, this will be
+ in expected linked list */
+ struct list_head sibling_list;
+@@ -264,8 +276,10 @@
+ const struct ip_conntrack_tuple *orig);
+
+ /* Refresh conntrack for this many jiffies */
+-extern void ip_ct_refresh(struct ip_conntrack *ct,
+- unsigned long extra_jiffies);
++extern void ip_ct_refresh_acct(struct ip_conntrack *ct,
++ enum ip_conntrack_info ctinfo,
++ const struct iphdr *iph,
++ unsigned long extra_jiffies);
+
+ /* These are for NAT. Icky. */
+ /* Call me when a conntrack is destroyed. */
+--- linux/net/ipv4/netfilter/ipt_connbytes.c.org 1970-01-01 01:00:00.000000000 +0100
++++ linux/net/ipv4/netfilter/ipt_connbytes.c 2005-11-13 16:22:02.021433872 +0100
+@@ -0,0 +1,163 @@
++/* Kernel module to match connection tracking byte counter.
++ * GPL (C) 2002 Martin Devera (devik@cdi.cz).
++ *
++ * 2004-07-20 Harald Welte <laforge at netfilter.org>
++ * - reimplemented to use per-connection accounting counters
++ * - add functionality to match number of packets
++ * - add functionality to match average packet size
++ * - add support to match directions seperately
++ *
++ * 2004-10-24 Piotr Chytla <pch at fouk.org>
++ * - Connbytes with per-connection accouting backported to 2.4
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/types.h>
++#include <linux/netfilter_ipv4/ip_conntrack.h>
++#include <linux/netfilter_ipv4/ip_tables.h>
++#include <linux/netfilter_ipv4/ipt_connbytes.h>
++
++#include <asm/div64.h>
++
++static u_int64_t mydiv(u_int64_t arg1,u_int32_t arg2)
++{
++ do_div(arg1,arg2);
++ return arg1;
++}
++
++static int
++match(const struct sk_buff *skb,
++ const struct net_device *in,
++ const struct net_device *out,
++ const void *matchinfo,
++ int offset,
++ const void *hdr,
++ u_int16_t datalen,
++ int *hotdrop)
++{
++ static u_int64_t what;
++ const struct ipt_connbytes_info *sinfo = matchinfo;
++ enum ip_conntrack_info ctinfo;
++ struct ip_conntrack *ct;
++
++ if (!(ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo)))
++ return 0; /* no match */
++ switch (sinfo->what) {
++ case IPT_CONNBYTES_WHAT_PKTS:
++ switch (sinfo->direction) {
++ case IPT_CONNBYTES_DIR_ORIGINAL:
++ what = ct->counters[IP_CT_DIR_ORIGINAL].packets;
++ break;
++ case IPT_CONNBYTES_DIR_REPLY:
++ what = ct->counters[IP_CT_DIR_REPLY].packets;
++ break;
++ case IPT_CONNBYTES_DIR_BOTH:
++ what = ct->counters[IP_CT_DIR_ORIGINAL].packets;
++ what += ct->counters[IP_CT_DIR_REPLY].packets;
++ break;
++ }
++ break;
++ case IPT_CONNBYTES_WHAT_BYTES:
++ switch (sinfo->direction) {
++ case IPT_CONNBYTES_DIR_ORIGINAL:
++ what = ct->counters[IP_CT_DIR_ORIGINAL].bytes;
++ break;
++ case IPT_CONNBYTES_DIR_REPLY:
++ what = ct->counters[IP_CT_DIR_REPLY].bytes;
++ break;
++ case IPT_CONNBYTES_DIR_BOTH:
++ what = ct->counters[IP_CT_DIR_ORIGINAL].bytes;
++ what += ct->counters[IP_CT_DIR_REPLY].bytes;
++ break;
++ }
++ break;
++ case IPT_CONNBYTES_WHAT_AVGPKT:
++ switch (sinfo->direction) {
++ case IPT_CONNBYTES_DIR_ORIGINAL:
++ {
++ u_int32_t pkts32;
++
++ if (ct->counters[IP_CT_DIR_ORIGINAL].packets > 0xfffffffff)
++ pkts32 = 0xffffffff;
++ else
++ pkts32 = ct->counters[IP_CT_DIR_ORIGINAL].packets;
++ what = mydiv(ct->counters[IP_CT_DIR_ORIGINAL].bytes,pkts32);
++ }
++ break;
++ case IPT_CONNBYTES_DIR_REPLY:
++ {
++ u_int32_t pkts32;
++
++ if (ct->counters[IP_CT_DIR_REPLY].packets > 0xffffffff)
++ pkts32 = 0xffffffff;
++ else
++ pkts32 = ct->counters[IP_CT_DIR_REPLY].packets;
++ what = mydiv(ct->counters[IP_CT_DIR_REPLY].bytes,pkts32);
++ }
++ break;
++ case IPT_CONNBYTES_DIR_BOTH:
++ {
++ u_int64_t bytes;
++ u_int64_t pkts;
++ u_int32_t pkts32;
++ bytes = ct->counters[IP_CT_DIR_ORIGINAL].bytes +
++ ct->counters[IP_CT_DIR_REPLY].bytes;
++ pkts = ct->counters[IP_CT_DIR_ORIGINAL].packets +
++ ct->counters[IP_CT_DIR_REPLY].packets;
++ if (pkts > 0xffffffff)
++ pkts32 = 0xffffffff;
++ else
++ pkts32 = pkts;
++ what = mydiv(bytes,pkts);
++ }
++ break;
++ }
++ break;
++ }
++ if (sinfo->count.to)
++ return (what <= sinfo->count.to && what >= sinfo->count.from);
++ else
++ return (what >= sinfo->count.from);
++}
++
++static int check(const char *tablename,
++ const struct ipt_ip *ip,
++ void *matchinfo,
++ unsigned int matchsize,
++ unsigned int hook_mask)
++{
++ const struct ipt_connbytes_info *sinfo = matchinfo;
++
++ if (matchsize != IPT_ALIGN(sizeof(struct ipt_connbytes_info)))
++ return 0;
++ if (sinfo->what != IPT_CONNBYTES_WHAT_PKTS &&
++ sinfo->what != IPT_CONNBYTES_WHAT_BYTES &&
++ sinfo->what != IPT_CONNBYTES_WHAT_AVGPKT)
++ return 0;
++
++ if (sinfo->direction != IPT_CONNBYTES_DIR_ORIGINAL &&
++ sinfo->direction != IPT_CONNBYTES_DIR_REPLY &&
++ sinfo->direction != IPT_CONNBYTES_DIR_BOTH)
++ return 0;
++
++ return 1;
++}
++
++static struct ipt_match state_match
++= { { NULL, NULL }, "connbytes", &match, &check, NULL, THIS_MODULE };
++
++static int __init init(void)
++{
++ return ipt_register_match(&state_match);
++}
++
++static void __exit fini(void)
++{
++ ipt_unregister_match(&state_match);
++}
++
++module_init(init);
++module_exit(fini);
++MODULE_LICENSE("GPL");
+--- linux/include/linux/netfilter_ipv4/ipt_connbytes.h.org 1970-01-01 01:00:00.000000000 +0100
++++ linux/include/linux/netfilter_ipv4/ipt_connbytes.h 2005-11-13 16:11:24.567341624 +0100
+@@ -0,0 +1,25 @@
++#ifndef _IPT_CONNBYTES_H
++#define _IPT_CONNBYTES_H
++enum ipt_connbytes_what {
++ IPT_CONNBYTES_WHAT_PKTS,
++ IPT_CONNBYTES_WHAT_BYTES,
++ IPT_CONNBYTES_WHAT_AVGPKT,
++};
++
++enum ipt_connbytes_direction {
++ IPT_CONNBYTES_DIR_ORIGINAL,
++ IPT_CONNBYTES_DIR_REPLY,
++ IPT_CONNBYTES_DIR_BOTH,
++};
++
++struct ipt_connbytes_info
++{
++ struct {
++ u_int64_t from; /* count to be matched */
++ u_int64_t to; /* count to be matched */
++ } count;
++ u_int8_t what; /* ipt_connbytes_what */
++ u_int8_t direction; /* ipt_connbytes_direction */
++};
++
++#endif
--- /dev/null
+diff -ruN linux-2.4.30-old/Documentation/Configure.help linux-2.4.30-new/Documentation/Configure.help
+--- linux-2.4.30-old/Documentation/Configure.help 2005-11-13 21:52:27.000000000 +0100
++++ linux-2.4.30-new/Documentation/Configure.help 2005-11-13 22:20:15.000000000 +0100
+@@ -2979,6 +2979,14 @@
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.
+
++Condition variable match support
++CONFIG_IP_NF_MATCH_CONDITION
++ This option allows you to match firewall rules against condition
++ variables stored in the /proc/net/ipt_condition directory.
++
++ If you want to compile it as a module, say M here and read
++ Documentation/modules.txt. If unsure, say `N'.
++
+ conntrack match support
+ CONFIG_IP_NF_MATCH_CONNTRACK
+ This is a general conntrack match module, a superset of the state match.
+@@ -3354,6 +3362,14 @@
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.
+
++Condition variable match support
++CONFIG_IP6_NF_MATCH_CONDITION
++ This option allows you to match firewall rules against condition
++ variables stored in the /proc/net/ipt_condition directory.
++
++ If you want to compile it as a module, say M here and read
++ Documentation/modules.txt. If unsure, say `N'.
++
+ Multiple port match support
+ CONFIG_IP6_NF_MATCH_MULTIPORT
+ Multiport matching allows you to match TCP or UDP packets based on
+diff -ruN linux-2.4.30-old/include/linux/netfilter_ipv4/ipt_condition.h linux-2.4.30-new/include/linux/netfilter_ipv4/ipt_condition.h
+--- linux-2.4.30-old/include/linux/netfilter_ipv4/ipt_condition.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.4.30-new/include/linux/netfilter_ipv4/ipt_condition.h 2005-11-13 22:20:14.000000000 +0100
+@@ -0,0 +1,11 @@
++#ifndef __IPT_CONDITION_MATCH__
++#define __IPT_CONDITION_MATCH__
++
++#define CONDITION_NAME_LEN 32
++
++struct condition_info {
++ char name[CONDITION_NAME_LEN];
++ int invert;
++};
++
++#endif
+diff -ruN linux-2.4.30-old/include/linux/netfilter_ipv6/ip6t_condition.h linux-2.4.30-new/include/linux/netfilter_ipv6/ip6t_condition.h
+--- linux-2.4.30-old/include/linux/netfilter_ipv6/ip6t_condition.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.4.30-new/include/linux/netfilter_ipv6/ip6t_condition.h 2005-11-13 22:20:14.000000000 +0100
+@@ -0,0 +1,11 @@
++#ifndef __IP6T_CONDITION_MATCH__
++#define __IP6T_CONDITION_MATCH__
++
++#define CONDITION6_NAME_LEN 32
++
++struct condition6_info {
++ char name[CONDITION6_NAME_LEN];
++ int invert;
++};
++
++#endif
+diff -ruN linux-2.4.30-old/net/ipv4/netfilter/Config.in linux-2.4.30-new/net/ipv4/netfilter/Config.in
+--- linux-2.4.30-old/net/ipv4/netfilter/Config.in 2005-11-13 21:52:27.000000000 +0100
++++ linux-2.4.30-new/net/ipv4/netfilter/Config.in 2005-11-13 22:20:15.000000000 +0100
+@@ -43,6 +43,7 @@
+ dep_tristate ' netfilter MARK match support' CONFIG_IP_NF_MATCH_MARK $CONFIG_IP_NF_IPTABLES
+ dep_tristate ' Multiple port match support' CONFIG_IP_NF_MATCH_MULTIPORT $CONFIG_IP_NF_IPTABLES
+ dep_tristate ' TOS match support' CONFIG_IP_NF_MATCH_TOS $CONFIG_IP_NF_IPTABLES
++ dep_tristate ' condition match support' CONFIG_IP_NF_MATCH_CONDITION $CONFIG_IP_NF_IPTABLES
+ dep_tristate ' recent match support' CONFIG_IP_NF_MATCH_RECENT $CONFIG_IP_NF_IPTABLES
+ dep_tristate ' ECN match support' CONFIG_IP_NF_MATCH_ECN $CONFIG_IP_NF_IPTABLES
+ dep_tristate ' peer to peer traffic match support' CONFIG_IP_NF_MATCH_IPP2P $CONFIG_IP_NF_IPTABLES
+diff -ruN linux-2.4.30-old/net/ipv4/netfilter/Makefile linux-2.4.30-new/net/ipv4/netfilter/Makefile
+--- linux-2.4.30-old/net/ipv4/netfilter/Makefile 2005-11-13 21:52:27.000000000 +0100
++++ linux-2.4.30-new/net/ipv4/netfilter/Makefile 2005-11-13 22:20:15.000000000 +0100
+@@ -94,6 +94,7 @@
+ obj-$(CONFIG_IP_NF_MATCH_MULTIPORT) += ipt_multiport.o
+ obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o
+ obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o
++obj-$(CONFIG_IP_NF_MATCH_CONDITION) += ipt_condition.o
+
+ obj-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent.o
+
+diff -ruN linux-2.4.30-old/net/ipv4/netfilter/ipt_condition.c linux-2.4.30-new/net/ipv4/netfilter/ipt_condition.c
+--- linux-2.4.30-old/net/ipv4/netfilter/ipt_condition.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.4.30-new/net/ipv4/netfilter/ipt_condition.c 2005-11-13 22:20:14.000000000 +0100
+@@ -0,0 +1,256 @@
++/*-------------------------------------------*\
++| Netfilter Condition Module |
++| |
++| Description: This module allows firewall |
++| rules to match using condition variables |
++| stored in /proc files. |
++| |
++| Author: Stephane Ouellette 2002-10-22 |
++| <ouellettes@videotron.ca> |
++| |
++| History: |
++| 2003-02-10 Second version with improved |
++| locking and simplified code. |
++| |
++| This software is distributed under the |
++| terms of the GNU GPL. |
++\*-------------------------------------------*/
++
++#include<linux/module.h>
++#include<linux/proc_fs.h>
++#include<linux/spinlock.h>
++#include<linux/string.h>
++#include<asm/atomic.h>
++#include<linux/netfilter_ipv4/ip_tables.h>
++#include<linux/netfilter_ipv4/ipt_condition.h>
++
++
++#ifndef CONFIG_PROC_FS
++#error "Proc file system support is required for this module"
++#endif
++
++
++MODULE_AUTHOR("Stephane Ouellette <ouellettes@videotron.ca>");
++MODULE_DESCRIPTION("Allows rules to match against condition variables");
++MODULE_LICENSE("GPL");
++
++
++struct condition_variable {
++ struct condition_variable *next;
++ struct proc_dir_entry *status_proc;
++ atomic_t refcount;
++ int enabled; /* TRUE == 1, FALSE == 0 */
++};
++
++
++static rwlock_t list_lock;
++static struct condition_variable *head = NULL;
++static struct proc_dir_entry *proc_net_condition = NULL;
++
++
++static int
++ipt_condition_read_info(char *buffer, char **start, off_t offset,
++ int length, int *eof, void *data)
++{
++ struct condition_variable *var =
++ (struct condition_variable *) data;
++
++ if (offset == 0) {
++ *start = buffer;
++ buffer[0] = (var->enabled) ? '1' : '0';
++ buffer[1] = '\n';
++ return 2;
++ }
++
++ *eof = 1;
++ return 0;
++}
++
++
++static int
++ipt_condition_write_info(struct file *file, const char *buffer,
++ unsigned long length, void *data)
++{
++ struct condition_variable *var =
++ (struct condition_variable *) data;
++
++ if (length) {
++ /* Match only on the first character */
++ switch (buffer[0]) {
++ case '0':
++ var->enabled = 0;
++ break;
++ case '1':
++ var->enabled = 1;
++ }
++ }
++
++ return (int) length;
++}
++
++
++static int
++match(const struct sk_buff *skb, const struct net_device *in,
++ const struct net_device *out, const void *matchinfo, int offset,
++ const void *hdr, u_int16_t datalen, int *hotdrop)
++{
++ const struct condition_info *info =
++ (const struct condition_info *) matchinfo;
++ struct condition_variable *var;
++ int condition_status = 0;
++
++ read_lock(&list_lock);
++
++ for (var = head; var; var = var->next) {
++ if (strcmp(info->name, var->status_proc->name) == 0) {
++ condition_status = var->enabled;
++ break;
++ }
++ }
++
++ read_unlock(&list_lock);
++
++ return condition_status ^ info->invert;
++}
++
++
++
++static int
++checkentry(const char *tablename, const struct ipt_ip *ip,
++ void *matchinfo, unsigned int matchsize, unsigned int hook_mask)
++{
++ struct condition_info *info = (struct condition_info *) matchinfo;
++ struct condition_variable *var, *newvar;
++
++ if (matchsize != IPT_ALIGN(sizeof(struct condition_info)))
++ return 0;
++
++ /* The first step is to check if the condition variable already exists. */
++ /* Here, a read lock is sufficient because we won't change the list */
++ read_lock(&list_lock);
++
++ for (var = head; var; var = var->next) {
++ if (strcmp(info->name, var->status_proc->name) == 0) {
++ atomic_inc(&var->refcount);
++ read_unlock(&list_lock);
++ return 1;
++ }
++ }
++
++ read_unlock(&list_lock);
++
++ /* At this point, we need to allocate a new condition variable */
++ newvar = kmalloc(sizeof(struct condition_variable), GFP_KERNEL);
++
++ if (!newvar)
++ return -ENOMEM;
++
++ /* Create the condition variable's proc file entry */
++ newvar->status_proc = create_proc_entry(info->name, 0644, proc_net_condition);
++
++ if (!newvar->status_proc) {
++ /*
++ * There are two possibilities:
++ * 1- Another condition variable with the same name has been created, which is valid.
++ * 2- There was a memory allocation error.
++ */
++ kfree(newvar);
++ read_lock(&list_lock);
++
++ for (var = head; var; var = var->next) {
++ if (strcmp(info->name, var->status_proc->name) == 0) {
++ atomic_inc(&var->refcount);
++ read_unlock(&list_lock);
++ return 1;
++ }
++ }
++
++ read_unlock(&list_lock);
++ return -ENOMEM;
++ }
++
++ atomic_set(&newvar->refcount, 1);
++ newvar->enabled = 0;
++ newvar->status_proc->owner = THIS_MODULE;
++ newvar->status_proc->data = newvar;
++ wmb();
++ newvar->status_proc->read_proc = ipt_condition_read_info;
++ newvar->status_proc->write_proc = ipt_condition_write_info;
++
++ write_lock(&list_lock);
++
++ newvar->next = head;
++ head = newvar;
++
++ write_unlock(&list_lock);
++
++ return 1;
++}
++
++
++static void
++destroy(void *matchinfo, unsigned int matchsize)
++{
++ struct condition_info *info = (struct condition_info *) matchinfo;
++ struct condition_variable *var, *prev = NULL;
++
++ if (matchsize != IPT_ALIGN(sizeof(struct condition_info)))
++ return;
++
++ write_lock(&list_lock);
++
++ for (var = head; var && strcmp(info->name, var->status_proc->name);
++ prev = var, var = var->next);
++
++ if (var && atomic_dec_and_test(&var->refcount)) {
++ if (prev)
++ prev->next = var->next;
++ else
++ head = var->next;
++
++ write_unlock(&list_lock);
++ remove_proc_entry(var->status_proc->name, proc_net_condition);
++ kfree(var);
++ } else
++ write_unlock(&list_lock);
++}
++
++
++static struct ipt_match condition_match = {
++ .name = "condition",
++ .match = &match,
++ .checkentry = &checkentry,
++ .destroy = &destroy,
++ .me = THIS_MODULE
++};
++
++
++static int __init
++init(void)
++{
++ int errorcode;
++
++ rwlock_init(&list_lock);
++ proc_net_condition = proc_mkdir("ipt_condition", proc_net);
++
++ if (proc_net_condition) {
++ errorcode = ipt_register_match(&condition_match);
++
++ if (errorcode)
++ remove_proc_entry("ipt_condition", proc_net);
++ } else
++ errorcode = -EACCES;
++
++ return errorcode;
++}
++
++
++static void __exit
++fini(void)
++{
++ ipt_unregister_match(&condition_match);
++ remove_proc_entry("ipt_condition", proc_net);
++}
++
++module_init(init);
++module_exit(fini);
+diff -ruN linux-2.4.30-old/net/ipv6/netfilter/Config.in linux-2.4.30-new/net/ipv6/netfilter/Config.in
+--- linux-2.4.30-old/net/ipv6/netfilter/Config.in 2003-06-13 16:51:39.000000000 +0200
++++ linux-2.4.30-new/net/ipv6/netfilter/Config.in 2005-11-13 22:20:15.000000000 +0100
+@@ -17,6 +17,7 @@
+ if [ "$CONFIG_IP6_NF_IPTABLES" != "n" ]; then
+ # The simple matches.
+ dep_tristate ' limit match support' CONFIG_IP6_NF_MATCH_LIMIT $CONFIG_IP6_NF_IPTABLES
++ dep_tristate ' condition match support' CONFIG_IP6_NF_MATCH_CONDITION $CONFIG_IP6_NF_IPTABLES
+ dep_tristate ' MAC address match support' CONFIG_IP6_NF_MATCH_MAC $CONFIG_IP6_NF_IPTABLES
+ if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
+ dep_tristate ' Routing header match support (EXPERIMENTAL)' CONFIG_IP6_NF_MATCH_RT $CONFIG_IP6_NF_IPTABLES
+diff -ruN linux-2.4.30-old/net/ipv6/netfilter/Makefile linux-2.4.30-new/net/ipv6/netfilter/Makefile
+--- linux-2.4.30-old/net/ipv6/netfilter/Makefile 2003-06-13 16:51:39.000000000 +0200
++++ linux-2.4.30-new/net/ipv6/netfilter/Makefile 2005-11-13 22:20:15.000000000 +0100
+@@ -14,6 +14,7 @@
+ # Link order matters here.
+ obj-$(CONFIG_IP6_NF_IPTABLES) += ip6_tables.o
+ obj-$(CONFIG_IP6_NF_MATCH_LIMIT) += ip6t_limit.o
++obj-$(CONFIG_IP6_NF_MATCH_CONDITION) += ip6t_condition.o
+ obj-$(CONFIG_IP6_NF_MATCH_MARK) += ip6t_mark.o
+ obj-$(CONFIG_IP6_NF_MATCH_LENGTH) += ip6t_length.o
+ obj-$(CONFIG_IP6_NF_MATCH_MAC) += ip6t_mac.o
+diff -ruN linux-2.4.30-old/net/ipv6/netfilter/ip6t_condition.c linux-2.4.30-new/net/ipv6/netfilter/ip6t_condition.c
+--- linux-2.4.30-old/net/ipv6/netfilter/ip6t_condition.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.4.30-new/net/ipv6/netfilter/ip6t_condition.c 2005-11-13 22:20:14.000000000 +0100
+@@ -0,0 +1,254 @@
++/*-------------------------------------------*\
++| Netfilter Condition Module for IPv6 |
++| |
++| Description: This module allows firewall |
++| rules to match using condition variables |
++| stored in /proc files. |
++| |
++| Author: Stephane Ouellette 2003-02-10 |
++| <ouellettes@videotron.ca> |
++| |
++| This software is distributed under the |
++| terms of the GNU GPL. |
++\*-------------------------------------------*/
++
++#include<linux/module.h>
++#include<linux/proc_fs.h>
++#include<linux/spinlock.h>
++#include<linux/string.h>
++#include<asm/atomic.h>
++#include<linux/netfilter_ipv6/ip6_tables.h>
++#include<linux/netfilter_ipv6/ip6t_condition.h>
++
++
++#ifndef CONFIG_PROC_FS
++#error "Proc file system support is required for this module"
++#endif
++
++
++MODULE_AUTHOR("Stephane Ouellette <ouellettes@videotron.ca>");
++MODULE_DESCRIPTION("Allows rules to match against condition variables");
++MODULE_LICENSE("GPL");
++
++
++struct condition_variable {
++ struct condition_variable *next;
++ struct proc_dir_entry *status_proc;
++ atomic_t refcount;
++ int enabled; /* TRUE == 1, FALSE == 0 */
++};
++
++
++static rwlock_t list_lock;
++static struct condition_variable *head = NULL;
++static struct proc_dir_entry *proc_net_condition = NULL;
++
++
++static int
++ipt_condition_read_info(char *buffer, char **start, off_t offset,
++ int length, int *eof, void *data)
++{
++ struct condition_variable *var =
++ (struct condition_variable *) data;
++
++ if (offset == 0) {
++ *start = buffer;
++ buffer[0] = (var->enabled) ? '1' : '0';
++ buffer[1] = '\n';
++ return 2;
++ }
++
++ *eof = 1;
++ return 0;
++}
++
++
++static int
++ipt_condition_write_info(struct file *file, const char *buffer,
++ unsigned long length, void *data)
++{
++ struct condition_variable *var =
++ (struct condition_variable *) data;
++
++ if (length) {
++ /* Match only on the first character */
++ switch (buffer[0]) {
++ case '0':
++ var->enabled = 0;
++ break;
++ case '1':
++ var->enabled = 1;
++ }
++ }
++
++ return (int) length;
++}
++
++
++static int
++match(const struct sk_buff *skb, const struct net_device *in,
++ const struct net_device *out, const void *matchinfo, int offset,
++ const void *hdr, u_int16_t datalen, int *hotdrop)
++{
++ const struct condition6_info *info =
++ (const struct condition6_info *) matchinfo;
++ struct condition_variable *var;
++ int condition_status = 0;
++
++ read_lock(&list_lock);
++
++ for (var = head; var; var = var->next) {
++ if (strcmp(info->name, var->status_proc->name) == 0) {
++ condition_status = var->enabled;
++ break;
++ }
++ }
++
++ read_unlock(&list_lock);
++
++ return condition_status ^ info->invert;
++}
++
++
++
++static int
++checkentry(const char *tablename, const struct ip6t_ip6 *ip,
++ void *matchinfo, unsigned int matchsize, unsigned int hook_mask)
++{
++ struct condition6_info *info =
++ (struct condition6_info *) matchinfo;
++ struct condition_variable *var, *newvar;
++
++ if (matchsize != IP6T_ALIGN(sizeof(struct condition6_info)))
++ return 0;
++
++ /* The first step is to check if the condition variable already exists. */
++ /* Here, a read lock is sufficient because we won't change the list */
++ read_lock(&list_lock);
++
++ for (var = head; var; var = var->next) {
++ if (strcmp(info->name, var->status_proc->name) == 0) {
++ atomic_inc(&var->refcount);
++ read_unlock(&list_lock);
++ return 1;
++ }
++ }
++
++ read_unlock(&list_lock);
++
++ /* At this point, we need to allocate a new condition variable */
++ newvar = kmalloc(sizeof(struct condition_variable), GFP_KERNEL);
++
++ if (!newvar)
++ return -ENOMEM;
++
++ /* Create the condition variable's proc file entry */
++ newvar->status_proc = create_proc_entry(info->name, 0644, proc_net_condition);
++
++ if (!newvar->status_proc) {
++ /*
++ * There are two possibilities:
++ * 1- Another condition variable with the same name has been created, which is valid.
++ * 2- There was a memory allocation error.
++ */
++ kfree(newvar);
++ read_lock(&list_lock);
++
++ for (var = head; var; var = var->next) {
++ if (strcmp(info->name, var->status_proc->name) == 0) {
++ atomic_inc(&var->refcount);
++ read_unlock(&list_lock);
++ return 1;
++ }
++ }
++
++ read_unlock(&list_lock);
++ return -ENOMEM;
++ }
++
++ atomic_set(&newvar->refcount, 1);
++ newvar->enabled = 0;
++ newvar->status_proc->owner = THIS_MODULE;
++ newvar->status_proc->data = newvar;
++ wmb();
++ newvar->status_proc->read_proc = ipt_condition_read_info;
++ newvar->status_proc->write_proc = ipt_condition_write_info;
++
++ write_lock(&list_lock);
++
++ newvar->next = head;
++ head = newvar;
++
++ write_unlock(&list_lock);
++
++ return 1;
++}
++
++
++static void
++destroy(void *matchinfo, unsigned int matchsize)
++{
++ struct condition6_info *info =
++ (struct condition6_info *) matchinfo;
++ struct condition_variable *var, *prev = NULL;
++
++ if (matchsize != IP6T_ALIGN(sizeof(struct condition6_info)))
++ return;
++
++ write_lock(&list_lock);
++
++ for (var = head; var && strcmp(info->name, var->status_proc->name);
++ prev = var, var = var->next);
++
++ if (var && atomic_dec_and_test(&var->refcount)) {
++ if (prev)
++ prev->next = var->next;
++ else
++ head = var->next;
++
++ write_unlock(&list_lock);
++ remove_proc_entry(var->status_proc->name, proc_net_condition);
++ kfree(var);
++ } else
++ write_unlock(&list_lock);
++}
++
++
++static struct ip6t_match condition_match = {
++ .name = "condition",
++ .match = &match,
++ .checkentry = &checkentry,
++ .destroy = &destroy,
++ .me = THIS_MODULE
++};
++
++
++static int __init
++init(void)
++{
++ int errorcode;
++
++ rwlock_init(&list_lock);
++ proc_net_condition = proc_mkdir("ip6t_condition", proc_net);
++
++ if (proc_net_condition) {
++ errorcode = ipt_register_match(&condition_match);
++
++ if (errorcode)
++ remove_proc_entry("ip6t_condition", proc_net);
++ } else
++ errorcode = -EACCES;
++
++ return errorcode;
++}
++
++
++static void __exit
++fini(void)
++{
++ ipt_unregister_match(&condition_match);
++ remove_proc_entry("ip6t_condition", proc_net);
++}
++
++module_init(init);
++module_exit(fini);
--- /dev/null
+diff -ruN linux-2.4.30-old/Documentation/Configure.help linux-2.4.30-new/Documentation/Configure.help
+--- linux-2.4.30-old/Documentation/Configure.help 2005-11-13 22:30:42.000000000 +0100
++++ linux-2.4.30-new/Documentation/Configure.help 2005-11-13 22:31:17.000000000 +0100
+@@ -2888,6 +2888,13 @@
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.
+
++quota match support
++CONFIG_IP_NF_MATCH_QUOTA
++ This match implements network quotas.
++
++ If you want to compile it as a module, say M here and read
++ Documentation/modules.txt. If unsure, say `N'.
++
+ skb->pkt_type packet match support
+ CONFIG_IP_NF_MATCH_PKTTYPE
+ This patch allows you to match packet in accrodance
+diff -ruN linux-2.4.30-old/include/linux/netfilter_ipv4/ipt_quota.h linux-2.4.30-new/include/linux/netfilter_ipv4/ipt_quota.h
+--- linux-2.4.30-old/include/linux/netfilter_ipv4/ipt_quota.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.4.30-new/include/linux/netfilter_ipv4/ipt_quota.h 2005-11-13 22:31:17.000000000 +0100
+@@ -0,0 +1,12 @@
++#ifndef _IPT_QUOTA_H
++#define _IPT_QUOTA_H
++
++/* print debug info in both kernel/netfilter module & iptable library */
++//#define DEBUG_IPT_QUOTA
++
++struct ipt_quota_info {
++ u_int64_t quota;
++ struct ipt_quota_info *master;
++};
++
++#endif /*_IPT_QUOTA_H*/
+diff -ruN linux-2.4.30-old/net/ipv4/netfilter/Config.in linux-2.4.30-new/net/ipv4/netfilter/Config.in
+--- linux-2.4.30-old/net/ipv4/netfilter/Config.in 2005-11-13 22:30:42.000000000 +0100
++++ linux-2.4.30-new/net/ipv4/netfilter/Config.in 2005-11-13 22:31:17.000000000 +0100
+@@ -24,6 +24,7 @@
+ if [ "$CONFIG_IP_NF_IPTABLES" != "n" ]; then
+ # The simple matches.
+ dep_tristate ' limit match support' CONFIG_IP_NF_MATCH_LIMIT $CONFIG_IP_NF_IPTABLES
++ dep_tristate ' quota match support' CONFIG_IP_NF_MATCH_QUOTA $CONFIG_IP_NF_IPTABLES
+
+ dep_tristate ' IP set support' CONFIG_IP_NF_SET $CONFIG_IP_NF_IPTABLES
+ if [ "$CONFIG_IP_NF_SET" != "n" ]; then
+diff -ruN linux-2.4.30-old/net/ipv4/netfilter/Makefile linux-2.4.30-new/net/ipv4/netfilter/Makefile
+--- linux-2.4.30-old/net/ipv4/netfilter/Makefile 2005-11-13 22:30:42.000000000 +0100
++++ linux-2.4.30-new/net/ipv4/netfilter/Makefile 2005-11-13 22:31:17.000000000 +0100
+@@ -74,6 +74,7 @@
+ # matches
+ obj-$(CONFIG_IP_NF_MATCH_HELPER) += ipt_helper.o
+ obj-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit.o
++obj-$(CONFIG_IP_NF_MATCH_QUOTA) += ipt_quota.o
+ obj-$(CONFIG_IP_NF_MATCH_MARK) += ipt_mark.o
+ obj-$(CONFIG_IP_NF_MATCH_SET) += ipt_set.o
+ obj-$(CONFIG_IP_NF_TARGET_SET) += ipt_SET.o
+diff -ruN linux-2.4.30-old/net/ipv4/netfilter/ipt_quota.c linux-2.4.30-new/net/ipv4/netfilter/ipt_quota.c
+--- linux-2.4.30-old/net/ipv4/netfilter/ipt_quota.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.4.30-new/net/ipv4/netfilter/ipt_quota.c 2005-11-13 22:31:17.000000000 +0100
+@@ -0,0 +1,88 @@
++/*
++ * netfilter module to enforce network quotas
++ *
++ * Sam Johnston <samj@samj.net>
++ *
++ * 30/01/05: Fixed on SMP --Pablo Neira <pablo@eurodev.net>
++ */
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/spinlock.h>
++#include <linux/interrupt.h>
++
++#include <linux/netfilter_ipv4/ip_tables.h>
++#include <linux/netfilter_ipv4/ipt_quota.h>
++
++MODULE_LICENSE("GPL");
++
++static spinlock_t quota_lock = SPIN_LOCK_UNLOCKED;
++
++static int
++match(const struct sk_buff *skb,
++ const struct net_device *in,
++ const struct net_device *out,
++ const void *matchinfo,
++ int offset, const void *hdr, u_int16_t datalen, int *hotdrop)
++{
++ struct ipt_quota_info *q =
++ ((struct ipt_quota_info *) matchinfo)->master;
++
++ spin_lock_bh("a_lock);
++
++ if (q->quota >= datalen) {
++ /* we can afford this one */
++ q->quota -= datalen;
++ spin_unlock_bh("a_lock);
++
++#ifdef DEBUG_IPT_QUOTA
++ printk("IPT Quota OK: %llu datlen %d \n", q->quota, datalen);
++#endif
++ return 1;
++ }
++
++ /* so we do not allow even small packets from now on */
++ q->quota = 0;
++
++#ifdef DEBUG_IPT_QUOTA
++ printk("IPT Quota Failed: %llu datlen %d \n", q->quota, datalen);
++#endif
++
++ spin_unlock_bh("a_lock);
++ return 0;
++}
++
++static int
++checkentry(const char *tablename,
++ const struct ipt_ip *ip,
++ void *matchinfo, unsigned int matchsize, unsigned int hook_mask)
++{
++ /* TODO: spinlocks? sanity checks? */
++ struct ipt_quota_info *q = (struct ipt_quota_info *) matchinfo;
++
++ if (matchsize != IPT_ALIGN(sizeof (struct ipt_quota_info)))
++ return 0;
++
++ /* For SMP, we only want to use one set of counters. */
++ q->master = q;
++
++ return 1;
++}
++
++static struct ipt_match quota_match
++ = { {NULL, NULL}, "quota", &match, &checkentry, NULL, THIS_MODULE };
++
++static int __init
++init(void)
++{
++ return ipt_register_match("a_match);
++}
++
++static void __exit
++fini(void)
++{
++ ipt_unregister_match("a_match);
++}
++
++module_init(init);
++module_exit(fini);
++
IPKG_KMOD_IPT_CONNTRACK-$(CONFIG_IP_NF_MATCH_STATE) += ipt_state
IPKG_KMOD_IPT_EXTRA-m :=
+IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_CONDITION) += ipt_condition
+IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_CONNBYTES) += ipt_connbytes
IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit
IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG
IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_MULTIPORT) += multiport
IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner
IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_PHYSDEV) += ipt_physdev
IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_PKTTYPE) += ipt_pkttype
+IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_QUOTA) += ipt_quota
IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent
IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT
+IPKG_KMOD_IPT_EXTRA-$(CONFIG_IP_NF_MATCH_STRING) += ipt_string
IPKG_KMOD_IPT_FILTER-m :=
IPKG_KMOD_IPT_FILTER-$(CONFIG_IP_NF_MATCH_IPP2P) += ipt_ipp2p
IPKG_IPTABLES_MOD_CONNTRACK-$(CONFIG_IP_NF_MATCH_STATE) += ipt_state
IPKG_IPTABLES_MOD_EXTRA-m :=
+IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_CONDITION) += ipt_condition
+IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_CONNBYTES) += ipt_connbytes
IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit
IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG
IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_MULTIPORT) += ipt_multiport
IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner
IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_PHYSDEV) += ipt_physdev
IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_PKTTYPE) += ipt_pkttype
+IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_QUOTA) += ipt_quota
IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent
IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT
+IPKG_IPTABLES_MOD_EXTRA-$(CONFIG_IP_NF_MATCH_STRING) += ipt_string
IPKG_IPTABLES_MOD_FILTER-m :=
IPKG_IPTABLES_MOD_FILTER-$(CONFIG_IP_NF_MATCH_IPP2P) += ipt_ipp2p
projects / openwrt / svn-archive / openwrt.git / commitdiff