mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-09-12 10:43:20 +03:00
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11213 3c298f89-4303-0410-b956-a3cf2f4a3e73
466 lines
18 KiB
Diff
466 lines
18 KiB
Diff
Index: linux-2.4.35.4/net/ipv4/netfilter/Config.in
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/Config.in
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+++ linux-2.4.35.4/net/ipv4/netfilter/Config.in
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@@ -11,6 +11,8 @@ if [ "$CONFIG_IP_NF_CONNTRACK" != "n" ];
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dep_tristate ' Amanda protocol support' CONFIG_IP_NF_AMANDA $CONFIG_IP_NF_CONNTRACK
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dep_tristate ' TFTP protocol support' CONFIG_IP_NF_TFTP $CONFIG_IP_NF_CONNTRACK
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dep_tristate ' IRC protocol support' CONFIG_IP_NF_IRC $CONFIG_IP_NF_CONNTRACK
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+ dep_tristate ' Connection tracking flow accounting' CONFIG_IP_NF_CT_ACCT $CONFIG_IP_NF_CONNTRACK
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+ dep_tristate ' Connection byte counter support' CONFIG_IP_NF_MATCH_CONNBYTES $CONFIG_IP_NF_CT_ACCT $CONFIG_IP_NF_CONNTRACK $CONFIG_IP_NF_IPTABLES
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dep_tristate ' GRE protocol support' CONFIG_IP_NF_CT_PROTO_GRE $CONFIG_IP_NF_CONNTRACK
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dep_tristate ' PPTP protocol support' CONFIG_IP_NF_PPTP $CONFIG_IP_NF_CT_PROTO_GRE
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fi
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Index: linux-2.4.35.4/net/ipv4/netfilter/Makefile
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/Makefile
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+++ linux-2.4.35.4/net/ipv4/netfilter/Makefile
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@@ -106,6 +106,7 @@ obj-$(CONFIG_IP_NF_MATCH_LENGTH) += ipt_
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obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o
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obj-$(CONFIG_IP_NF_MATCH_STATE) += ipt_state.o
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obj-$(CONFIG_IP_NF_MATCH_CONNMARK) += ipt_connmark.o
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+obj-$(CONFIG_IP_NF_MATCH_CONNBYTES) += ipt_connbytes.o
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obj-$(CONFIG_IP_NF_MATCH_CONNTRACK) += ipt_conntrack.o
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obj-$(CONFIG_IP_NF_MATCH_UNCLEAN) += ipt_unclean.o
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obj-$(CONFIG_IP_NF_MATCH_STRING) += ipt_string.o
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Index: linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_amanda.c
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/ip_conntrack_amanda.c
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+++ linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_amanda.c
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@@ -75,7 +75,7 @@ static int help(const struct iphdr *iph,
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/* increase the UDP timeout of the master connection as replies from
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* Amanda clients to the server can be quite delayed */
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- ip_ct_refresh(ct, master_timeout * HZ);
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+ ip_ct_refresh_acct(ct,ctinfo,NULL, master_timeout * HZ);
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/* Search for "CONNECT " string */
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do {
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Index: linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
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+++ linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
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@@ -211,7 +211,7 @@ static int tcp_packet(struct ip_conntrac
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set_bit(IPS_ASSURED_BIT, &conntrack->status);
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WRITE_UNLOCK(&tcp_lock);
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- ip_ct_refresh(conntrack, *tcp_timeouts[newconntrack]);
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+ ip_ct_refresh_acct(conntrack,ctinfo,iph, *tcp_timeouts[newconntrack]);
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}
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return NF_ACCEPT;
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Index: linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_udp.c
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/ip_conntrack_proto_udp.c
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+++ linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_udp.c
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@@ -47,16 +47,16 @@ static unsigned int udp_print_conntrack(
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/* Returns verdict for packet, and may modify conntracktype */
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static int udp_packet(struct ip_conntrack *conntrack,
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struct iphdr *iph, size_t len,
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- enum ip_conntrack_info conntrackinfo)
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+ enum ip_conntrack_info ctinfo)
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{
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/* If we've seen traffic both ways, this is some kind of UDP
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stream. Extend timeout. */
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if (test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)) {
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- ip_ct_refresh(conntrack, ip_ct_udp_timeout_stream);
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+ ip_ct_refresh_acct(conntrack,ctinfo,iph,ip_ct_udp_timeout_stream);
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/* Also, more likely to be important, and not a probe */
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set_bit(IPS_ASSURED_BIT, &conntrack->status);
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} else
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- ip_ct_refresh(conntrack, ip_ct_udp_timeout);
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+ ip_ct_refresh_acct(conntrack,ctinfo,iph, ip_ct_udp_timeout);
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return NF_ACCEPT;
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}
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Index: linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_standalone.c
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/ip_conntrack_standalone.c
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+++ linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_standalone.c
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@@ -79,6 +79,18 @@ print_expect(char *buffer, const struct
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return len;
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}
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+#if defined(CONFIG_IP_NF_CT_ACCT) || \
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+ defined(CONFIG_IP_NF_CT_ACCT_MODULE)
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+static unsigned int
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+print_counters(char *buffer, struct ip_conntrack_counter *counter)
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+{
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+ return sprintf(buffer, "packets=%llu bytes=%llu ",
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+ counter->packets, counter->bytes);
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+}
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+#else
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+#define print_counters(x, y) 0
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+#endif
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+
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static unsigned int
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print_conntrack(char *buffer, struct ip_conntrack *conntrack)
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{
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@@ -98,11 +110,15 @@ print_conntrack(char *buffer, struct ip_
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len += print_tuple(buffer + len,
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&conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
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proto);
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+ len += print_counters(buffer + len,
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+ &conntrack->counters[IP_CT_DIR_ORIGINAL]);
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if (!(test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)))
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len += sprintf(buffer + len, "[UNREPLIED] ");
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len += print_tuple(buffer + len,
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&conntrack->tuplehash[IP_CT_DIR_REPLY].tuple,
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proto);
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+ len += print_counters(buffer + len,
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+ &conntrack->counters[IP_CT_DIR_REPLY]);
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if (test_bit(IPS_ASSURED_BIT, &conntrack->status))
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len += sprintf(buffer + len, "[ASSURED] ");
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len += sprintf(buffer + len, "use=%u ",
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@@ -478,7 +494,7 @@ EXPORT_SYMBOL(ip_conntrack_get);
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EXPORT_SYMBOL(ip_conntrack_helper_register);
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EXPORT_SYMBOL(ip_conntrack_helper_unregister);
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EXPORT_SYMBOL(ip_ct_iterate_cleanup);
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-EXPORT_SYMBOL(ip_ct_refresh);
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+EXPORT_SYMBOL(ip_ct_refresh_acct);
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EXPORT_SYMBOL(ip_ct_find_proto);
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EXPORT_SYMBOL(__ip_ct_find_proto);
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EXPORT_SYMBOL(ip_ct_find_helper);
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Index: linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_generic.c
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/ip_conntrack_proto_generic.c
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+++ linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_generic.c
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@@ -41,9 +41,9 @@ static unsigned int generic_print_conntr
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/* Returns verdict for packet, or -1 for invalid. */
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static int established(struct ip_conntrack *conntrack,
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struct iphdr *iph, size_t len,
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- enum ip_conntrack_info conntrackinfo)
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+ enum ip_conntrack_info ctinfo)
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{
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- ip_ct_refresh(conntrack, ip_ct_generic_timeout);
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+ ip_ct_refresh_acct(conntrack, ctinfo,iph,ip_ct_generic_timeout);
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return NF_ACCEPT;
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}
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Index: linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_icmp.c
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/ip_conntrack_proto_icmp.c
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+++ linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_icmp.c
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@@ -82,7 +82,7 @@ static int icmp_packet(struct ip_conntra
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ct->timeout.function((unsigned long)ct);
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} else {
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atomic_inc(&ct->proto.icmp.count);
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- ip_ct_refresh(ct, ip_ct_icmp_timeout);
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+ ip_ct_refresh_acct(ct,ctinfo,iph, ip_ct_icmp_timeout);
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}
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return NF_ACCEPT;
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Index: linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_core.c
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===================================================================
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--- linux-2.4.35.4.orig/net/ipv4/netfilter/ip_conntrack_core.c
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+++ linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_core.c
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@@ -1196,22 +1196,40 @@ void ip_conntrack_helper_unregister(stru
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MOD_DEC_USE_COUNT;
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}
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+static inline void ct_add_counters(struct ip_conntrack *ct,
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+ enum ip_conntrack_info ctinfo,
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+ const struct iphdr *iph)
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+{
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+#if defined(CONFIG_IP_NF_CT_ACCT) || \
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+ defined(CONFIG_IP_NF_CT_ACCT_MODULE)
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+ if (iph) {
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+ ct->counters[CTINFO2DIR(ctinfo)].packets++;
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+ ct->counters[CTINFO2DIR(ctinfo)].bytes +=
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+ ntohs(iph->tot_len);
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+ }
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+#endif
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+}
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/* Refresh conntrack for this many jiffies. */
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-void ip_ct_refresh(struct ip_conntrack *ct, unsigned long extra_jiffies)
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+void ip_ct_refresh_acct(struct ip_conntrack *ct,
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+ enum ip_conntrack_info ctinfo,
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+ const struct iphdr *iph,
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+ unsigned long extra_jiffies)
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{
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IP_NF_ASSERT(ct->timeout.data == (unsigned long)ct);
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WRITE_LOCK(&ip_conntrack_lock);
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/* If not in hash table, timer will not be active yet */
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- if (!is_confirmed(ct))
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+ if (!is_confirmed(ct)) {
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ct->timeout.expires = extra_jiffies;
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- else {
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+ ct_add_counters(ct, ctinfo,iph);
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+ } else {
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/* Need del_timer for race avoidance (may already be dying). */
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if (del_timer(&ct->timeout)) {
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ct->timeout.expires = jiffies + extra_jiffies;
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add_timer(&ct->timeout);
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}
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+ ct_add_counters(ct, ctinfo, iph);
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}
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WRITE_UNLOCK(&ip_conntrack_lock);
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}
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Index: linux-2.4.35.4/include/linux/netfilter_ipv4/ip_conntrack.h
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===================================================================
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--- linux-2.4.35.4.orig/include/linux/netfilter_ipv4/ip_conntrack.h
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+++ linux-2.4.35.4/include/linux/netfilter_ipv4/ip_conntrack.h
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@@ -164,6 +164,12 @@ struct ip_conntrack_expect
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union ip_conntrack_expect_help help;
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};
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+struct ip_conntrack_counter
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+{
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+ u_int64_t packets;
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+ u_int64_t bytes;
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+};
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+
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struct ip_conntrack_helper;
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struct ip_conntrack
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@@ -181,6 +187,12 @@ struct ip_conntrack
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/* Timer function; drops refcnt when it goes off. */
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struct timer_list timeout;
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+#if defined(CONFIG_IP_NF_CT_ACCT) || \
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+ defined(CONFIG_IP_NF_CT_ACCT_MODULE)
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+ /* Accounting Information (same cache line as other written members) */
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+ struct ip_conntrack_counter counters[IP_CT_DIR_MAX];
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+#endif
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+
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/* If we're expecting another related connection, this will be
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in expected linked list */
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struct list_head sibling_list;
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@@ -264,8 +276,10 @@ extern int invert_tuplepr(struct ip_conn
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const struct ip_conntrack_tuple *orig);
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/* Refresh conntrack for this many jiffies */
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-extern void ip_ct_refresh(struct ip_conntrack *ct,
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- unsigned long extra_jiffies);
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+extern void ip_ct_refresh_acct(struct ip_conntrack *ct,
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+ enum ip_conntrack_info ctinfo,
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+ const struct iphdr *iph,
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+ unsigned long extra_jiffies);
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/* These are for NAT. Icky. */
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/* Call me when a conntrack is destroyed. */
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Index: linux-2.4.35.4/net/ipv4/netfilter/ipt_connbytes.c
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===================================================================
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--- /dev/null
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+++ linux-2.4.35.4/net/ipv4/netfilter/ipt_connbytes.c
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@@ -0,0 +1,163 @@
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+/* Kernel module to match connection tracking byte counter.
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+ * GPL (C) 2002 Martin Devera (devik@cdi.cz).
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+ *
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+ * 2004-07-20 Harald Welte <laforge at netfilter.org>
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+ * - reimplemented to use per-connection accounting counters
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+ * - add functionality to match number of packets
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+ * - add functionality to match average packet size
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+ * - add support to match directions seperately
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+ *
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+ * 2004-10-24 Piotr Chytla <pch at fouk.org>
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+ * - Connbytes with per-connection accouting backported to 2.4
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+ *
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/skbuff.h>
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+#include <linux/types.h>
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+#include <linux/netfilter_ipv4/ip_conntrack.h>
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+#include <linux/netfilter_ipv4/ip_tables.h>
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+#include <linux/netfilter_ipv4/ipt_connbytes.h>
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+
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+#include <asm/div64.h>
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+
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+static u_int64_t mydiv(u_int64_t arg1,u_int32_t arg2)
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+{
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+ do_div(arg1,arg2);
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+ return arg1;
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+}
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+
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+static int
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+match(const struct sk_buff *skb,
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+ const struct net_device *in,
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+ const struct net_device *out,
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+ const void *matchinfo,
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+ int offset,
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+ const void *hdr,
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+ u_int16_t datalen,
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+ int *hotdrop)
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+{
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+ static u_int64_t what;
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+ const struct ipt_connbytes_info *sinfo = matchinfo;
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+ enum ip_conntrack_info ctinfo;
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+ struct ip_conntrack *ct;
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+
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+ if (!(ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo)))
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+ return 0; /* no match */
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+ switch (sinfo->what) {
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+ case IPT_CONNBYTES_PKTS:
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+ switch (sinfo->direction) {
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+ case IPT_CONNBYTES_DIR_ORIGINAL:
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+ what = ct->counters[IP_CT_DIR_ORIGINAL].packets;
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+ break;
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+ case IPT_CONNBYTES_DIR_REPLY:
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+ what = ct->counters[IP_CT_DIR_REPLY].packets;
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+ break;
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+ case IPT_CONNBYTES_DIR_BOTH:
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+ what = ct->counters[IP_CT_DIR_ORIGINAL].packets;
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+ what += ct->counters[IP_CT_DIR_REPLY].packets;
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+ break;
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+ }
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+ break;
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+ case IPT_CONNBYTES_BYTES:
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+ switch (sinfo->direction) {
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+ case IPT_CONNBYTES_DIR_ORIGINAL:
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+ what = ct->counters[IP_CT_DIR_ORIGINAL].bytes;
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+ break;
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+ case IPT_CONNBYTES_DIR_REPLY:
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+ what = ct->counters[IP_CT_DIR_REPLY].bytes;
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+ break;
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+ case IPT_CONNBYTES_DIR_BOTH:
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+ what = ct->counters[IP_CT_DIR_ORIGINAL].bytes;
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+ what += ct->counters[IP_CT_DIR_REPLY].bytes;
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+ break;
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+ }
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+ break;
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+ case IPT_CONNBYTES_AVGPKT:
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+ switch (sinfo->direction) {
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+ case IPT_CONNBYTES_DIR_ORIGINAL:
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+ {
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+ u_int32_t pkts32;
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+
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+ if (ct->counters[IP_CT_DIR_ORIGINAL].packets > 0xfffffffff)
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+ pkts32 = 0xffffffff;
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+ else
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+ pkts32 = ct->counters[IP_CT_DIR_ORIGINAL].packets;
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+ what = mydiv(ct->counters[IP_CT_DIR_ORIGINAL].bytes,pkts32);
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+ }
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+ break;
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+ case IPT_CONNBYTES_DIR_REPLY:
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+ {
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+ u_int32_t pkts32;
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+
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+ if (ct->counters[IP_CT_DIR_REPLY].packets > 0xffffffff)
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+ pkts32 = 0xffffffff;
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+ else
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+ pkts32 = ct->counters[IP_CT_DIR_REPLY].packets;
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+ what = mydiv(ct->counters[IP_CT_DIR_REPLY].bytes,pkts32);
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+ }
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+ break;
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+ case IPT_CONNBYTES_DIR_BOTH:
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+ {
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+ u_int64_t bytes;
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+ u_int64_t pkts;
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+ u_int32_t pkts32;
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+ bytes = ct->counters[IP_CT_DIR_ORIGINAL].bytes +
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+ ct->counters[IP_CT_DIR_REPLY].bytes;
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+ pkts = ct->counters[IP_CT_DIR_ORIGINAL].packets +
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+ ct->counters[IP_CT_DIR_REPLY].packets;
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+ if (pkts > 0xffffffff)
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+ pkts32 = 0xffffffff;
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+ else
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+ pkts32 = pkts;
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+ what = mydiv(bytes,pkts);
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+ }
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+ break;
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+ }
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+ break;
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+ }
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+ if (sinfo->count.to)
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+ return (what <= sinfo->count.to && what >= sinfo->count.from);
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+ else
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+ return (what >= sinfo->count.from);
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+}
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+
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+static int check(const char *tablename,
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+ const struct ipt_ip *ip,
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+ void *matchinfo,
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+ unsigned int matchsize,
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+ unsigned int hook_mask)
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+{
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+ const struct ipt_connbytes_info *sinfo = matchinfo;
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+
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+ if (matchsize != IPT_ALIGN(sizeof(struct ipt_connbytes_info)))
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+ return 0;
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+ if (sinfo->what != IPT_CONNBYTES_PKTS &&
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+ sinfo->what != IPT_CONNBYTES_BYTES &&
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+ sinfo->what != IPT_CONNBYTES_AVGPKT)
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+ return 0;
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+
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+ if (sinfo->direction != IPT_CONNBYTES_DIR_ORIGINAL &&
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+ sinfo->direction != IPT_CONNBYTES_DIR_REPLY &&
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+ sinfo->direction != IPT_CONNBYTES_DIR_BOTH)
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+ return 0;
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+
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+ return 1;
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+}
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+
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+static struct ipt_match state_match
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+= { { 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");
|
|
Index: linux-2.4.35.4/include/linux/netfilter_ipv4/ipt_connbytes.h
|
|
===================================================================
|
|
--- /dev/null
|
|
+++ linux-2.4.35.4/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
|
|
Index: linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_gre.c
|
|
===================================================================
|
|
--- linux-2.4.35.4.orig/net/ipv4/netfilter/ip_conntrack_proto_gre.c
|
|
+++ linux-2.4.35.4/net/ipv4/netfilter/ip_conntrack_proto_gre.c
|
|
@@ -237,16 +237,16 @@ static unsigned int gre_print_conntrack(
|
|
/* Returns verdict for packet, and may modify conntrack */
|
|
static int gre_packet(struct ip_conntrack *ct,
|
|
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 a GRE connection.
|
|
* Extend timeout. */
|
|
if (ct->status & IPS_SEEN_REPLY) {
|
|
- ip_ct_refresh_acct(ct, ct->proto.gre.stream_timeout);
|
|
+ ip_ct_refresh_acct(ct, ctinfo, iph, ct->proto.gre.stream_timeout);
|
|
/* Also, more likely to be important, and not a probe. */
|
|
set_bit(IPS_ASSURED_BIT, &ct->status);
|
|
} else
|
|
- ip_ct_refresh_acct(ct, ct->proto.gre.timeout);
|
|
+ ip_ct_refresh_acct(ct, ctinfo, iph, ct->proto.gre.timeout);
|
|
|
|
return NF_ACCEPT;
|
|
}
|