diff options
Diffstat (limited to 'target/linux/generic-2.4/patches/610-netfilter_connbytes.patch')
-rw-r--r-- | target/linux/generic-2.4/patches/610-netfilter_connbytes.patch | 417 |
1 files changed, 0 insertions, 417 deletions
diff --git a/target/linux/generic-2.4/patches/610-netfilter_connbytes.patch b/target/linux/generic-2.4/patches/610-netfilter_connbytes.patch deleted file mode 100644 index a5bc17e37a..0000000000 --- a/target/linux/generic-2.4/patches/610-netfilter_connbytes.patch +++ /dev/null @@ -1,417 +0,0 @@ ---- a/net/ipv4/netfilter/Config.in -+++ b/net/ipv4/netfilter/Config.in -@@ -11,6 +11,8 @@ if [ "$CONFIG_IP_NF_CONNTRACK" != "n" ]; - 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 $CONFIG_IP_NF_IPTABLES - fi - - if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then ---- a/net/ipv4/netfilter/Makefile -+++ b/net/ipv4/netfilter/Makefile -@@ -85,6 +85,7 @@ obj-$(CONFIG_IP_NF_MATCH_LENGTH) += ipt_ - obj-$(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_STRING) += ipt_string.o ---- a/net/ipv4/netfilter/ip_conntrack_amanda.c -+++ b/net/ipv4/netfilter/ip_conntrack_amanda.c -@@ -75,7 +75,7 @@ static int help(const struct iphdr *iph, - - /* 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 { ---- a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c -+++ b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c -@@ -211,7 +211,7 @@ static int tcp_packet(struct ip_conntrac - 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; ---- a/net/ipv4/netfilter/ip_conntrack_proto_udp.c -+++ b/net/ipv4/netfilter/ip_conntrack_proto_udp.c -@@ -47,16 +47,16 @@ static unsigned int udp_print_conntrack( - /* 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; - } ---- a/net/ipv4/netfilter/ip_conntrack_standalone.c -+++ b/net/ipv4/netfilter/ip_conntrack_standalone.c -@@ -79,6 +79,18 @@ print_expect(char *buffer, const struct - 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 @@ print_conntrack(char *buffer, struct ip_ - 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 ", -@@ -481,7 +497,7 @@ EXPORT_SYMBOL(ip_conntrack_get); - 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); ---- a/net/ipv4/netfilter/ip_conntrack_proto_generic.c -+++ b/net/ipv4/netfilter/ip_conntrack_proto_generic.c -@@ -41,9 +41,9 @@ static unsigned int generic_print_conntr - /* 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; - } - ---- a/net/ipv4/netfilter/ip_conntrack_proto_icmp.c -+++ b/net/ipv4/netfilter/ip_conntrack_proto_icmp.c -@@ -82,7 +82,7 @@ static int icmp_packet(struct ip_conntra - 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; ---- a/net/ipv4/netfilter/ip_conntrack_core.c -+++ b/net/ipv4/netfilter/ip_conntrack_core.c -@@ -1193,22 +1193,40 @@ void ip_conntrack_helper_unregister(stru - - 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); - } ---- a/include/linux/netfilter_ipv4/ip_conntrack.h -+++ b/include/linux/netfilter_ipv4/ip_conntrack.h -@@ -156,6 +156,12 @@ struct ip_conntrack_expect - 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 -@@ -173,6 +179,12 @@ struct ip_conntrack - /* 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; -@@ -256,8 +268,10 @@ extern int invert_tuplepr(struct ip_conn - 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. */ ---- /dev/null -+++ b/net/ipv4/netfilter/ipt_connbytes.c -@@ -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_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_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_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_PKTS && -+ sinfo->what != IPT_CONNBYTES_BYTES && -+ sinfo->what != IPT_CONNBYTES_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"); ---- /dev/null -+++ b/include/linux/netfilter_ipv4/ipt_connbytes.h -@@ -0,0 +1,25 @@ -+#ifndef _IPT_CONNBYTES_H -+#define _IPT_CONNBYTES_H -+enum ipt_connbytes_what { -+ IPT_CONNBYTES_PKTS, -+ IPT_CONNBYTES_BYTES, -+ IPT_CONNBYTES_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 |