diff -Nurb linux-2.6.22-521/include/linux/netfilter/xt_MARK.h linux-2.6.22-522/include/linux/netfilter/xt_MARK.h
--- linux-2.6.22-521/include/linux/netfilter/xt_MARK.h 2007-07-08 19:32:17.000000000 -0400
-+++ linux-2.6.22-522/include/linux/netfilter/xt_MARK.h 2008-07-13 23:58:41.000000000 -0400
++++ linux-2.6.22-522/include/linux/netfilter/xt_MARK.h 2008-07-28 16:36:24.000000000 -0400
@@ -11,6 +11,7 @@
XT_MARK_SET=0,
XT_MARK_AND,
struct xt_mark_target_info_v1 {
diff -Nurb linux-2.6.22-521/include/linux/netfilter/xt_SETXID.h linux-2.6.22-522/include/linux/netfilter/xt_SETXID.h
--- linux-2.6.22-521/include/linux/netfilter/xt_SETXID.h 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.22-522/include/linux/netfilter/xt_SETXID.h 2008-07-13 23:58:41.000000000 -0400
++++ linux-2.6.22-522/include/linux/netfilter/xt_SETXID.h 2008-07-28 16:36:24.000000000 -0400
@@ -0,0 +1,14 @@
+#ifndef _XT_SETXID_H_target
+#define _XT_SETXID_H_target
+#endif /*_XT_SETXID_H_target*/
diff -Nurb linux-2.6.22-521/include/linux/netfilter_ipv4/ipt_MARK.h linux-2.6.22-522/include/linux/netfilter_ipv4/ipt_MARK.h
--- linux-2.6.22-521/include/linux/netfilter_ipv4/ipt_MARK.h 2007-07-08 19:32:17.000000000 -0400
-+++ linux-2.6.22-522/include/linux/netfilter_ipv4/ipt_MARK.h 2008-07-13 23:58:41.000000000 -0400
++++ linux-2.6.22-522/include/linux/netfilter_ipv4/ipt_MARK.h 2008-07-28 16:36:24.000000000 -0400
@@ -12,6 +12,7 @@
#define IPT_MARK_SET XT_MARK_SET
#define IPT_MARK_AND XT_MARK_AND
diff -Nurb linux-2.6.22-521/include/linux/netfilter_ipv4/ipt_SETXID.h linux-2.6.22-522/include/linux/netfilter_ipv4/ipt_SETXID.h
--- linux-2.6.22-521/include/linux/netfilter_ipv4/ipt_SETXID.h 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.22-522/include/linux/netfilter_ipv4/ipt_SETXID.h 2008-07-13 23:58:41.000000000 -0400
++++ linux-2.6.22-522/include/linux/netfilter_ipv4/ipt_SETXID.h 2008-07-28 16:36:24.000000000 -0400
@@ -0,0 +1,13 @@
+#ifndef _IPT_SETXID_H_target
+#define _IPT_SETXID_H_target
+#endif /*_IPT_SETXID_H_target*/
diff -Nurb linux-2.6.22-521/include/net/netfilter/nf_conntrack.h linux-2.6.22-522/include/net/netfilter/nf_conntrack.h
--- linux-2.6.22-521/include/net/netfilter/nf_conntrack.h 2007-07-08 19:32:17.000000000 -0400
-+++ linux-2.6.22-522/include/net/netfilter/nf_conntrack.h 2008-07-13 23:58:41.000000000 -0400
++++ linux-2.6.22-522/include/net/netfilter/nf_conntrack.h 2008-07-28 16:36:24.000000000 -0400
@@ -131,6 +131,9 @@
/* Storage reserved for other modules: */
union nf_conntrack_proto proto;
};
diff -Nurb linux-2.6.22-521/net/netfilter/Kconfig linux-2.6.22-522/net/netfilter/Kconfig
--- linux-2.6.22-521/net/netfilter/Kconfig 2007-07-08 19:32:17.000000000 -0400
-+++ linux-2.6.22-522/net/netfilter/Kconfig 2008-07-13 23:58:41.000000000 -0400
++++ linux-2.6.22-522/net/netfilter/Kconfig 2008-07-28 16:36:24.000000000 -0400
@@ -389,6 +389,13 @@
To compile it as a module, choose M here. If unsure, say N.
depends on NETFILTER_XTABLES
diff -Nurb linux-2.6.22-521/net/netfilter/Makefile linux-2.6.22-522/net/netfilter/Makefile
--- linux-2.6.22-521/net/netfilter/Makefile 2007-07-08 19:32:17.000000000 -0400
-+++ linux-2.6.22-522/net/netfilter/Makefile 2008-07-13 23:58:41.000000000 -0400
++++ linux-2.6.22-522/net/netfilter/Makefile 2008-07-28 16:36:24.000000000 -0400
@@ -37,6 +37,7 @@
obj-$(CONFIG_NETFILTER_XTABLES) += x_tables.o xt_tcpudp.o
obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
diff -Nurb linux-2.6.22-521/net/netfilter/nf_conntrack_core.c linux-2.6.22-522/net/netfilter/nf_conntrack_core.c
--- linux-2.6.22-521/net/netfilter/nf_conntrack_core.c 2007-07-08 19:32:17.000000000 -0400
-+++ linux-2.6.22-522/net/netfilter/nf_conntrack_core.c 2008-07-13 23:58:41.000000000 -0400
++++ linux-2.6.22-522/net/netfilter/nf_conntrack_core.c 2008-07-28 16:36:24.000000000 -0400
@@ -726,6 +726,8 @@
/* Overload tuple linked list to put us in unconfirmed list. */
diff -Nurb linux-2.6.22-521/net/netfilter/xt_MARK.c linux-2.6.22-522/net/netfilter/xt_MARK.c
--- linux-2.6.22-521/net/netfilter/xt_MARK.c 2007-07-08 19:32:17.000000000 -0400
-+++ linux-2.6.22-522/net/netfilter/xt_MARK.c 2008-07-15 11:37:03.000000000 -0400
-@@ -5,13 +5,18 @@
++++ linux-2.6.22-522/net/netfilter/xt_MARK.c 2008-08-04 16:44:16.000000000 -0400
+@@ -5,13 +5,19 @@
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
+#include <linux/version.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
++#include <net/udp.h>
#include <net/checksum.h>
+#include <net/route.h>
+#include <net/inet_hashtables.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_MARK.h>
-@@ -21,6 +26,48 @@
+@@ -21,6 +27,48 @@
MODULE_ALIAS("ipt_MARK");
MODULE_ALIAS("ip6t_MARK");
static unsigned int
target_v0(struct sk_buff **pskb,
const struct net_device *in,
-@@ -35,6 +82,8 @@
+@@ -35,6 +83,67 @@
return XT_CONTINUE;
}
+extern DEFINE_PER_CPU(int, sknid_elevator);
++static struct sock *__udp4_lib_lookup(__be32 saddr, __be16 sport,
++ __be32 daddr, __be16 dport,
++ int dif, struct hlist_head udptable[])
++{
++ struct sock *sk, *result = NULL;
++ struct hlist_node *node;
++ unsigned short hnum = ntohs(dport);
++ int badness = -1;
++
++ read_lock(&udp_hash_lock);
++
++ sk_for_each(sk, node, &udptable[hnum & (UDP_HTABLE_SIZE - 1)]) {
++ struct inet_sock *inet = inet_sk(sk);
++
++ if (sk->sk_hash == hnum && !ipv6_only_sock(sk)) {
++ int score = (sk->sk_family == PF_INET ? 1 : 0);
++
++ if (inet->rcv_saddr) {
++ if (inet->rcv_saddr != daddr)
++ continue;
++ score+=2;
++ } else {
++ /* block non nx_info ips */
++ if (!v4_addr_in_nx_info(sk->sk_nx_info,
++ daddr, NXA_MASK_BIND))
++ continue;
++ }
++ if (inet->daddr) {
++ if (inet->daddr != saddr)
++ continue;
++ score+=2;
++ }
++ if (inet->dport) {
++ if (inet->dport != sport)
++ continue;
++ score+=2;
++ }
++ if (sk->sk_bound_dev_if) {
++ if (sk->sk_bound_dev_if != dif)
++ continue;
++ score+=2;
++ }
++ if (score == 9) {
++ result = sk;
++ break;
++ } else if (score > badness) {
++ result = sk;
++ badness = score;
++ }
++ }
++ }
++
++ if (result)
++ sock_hold(result);
++ read_unlock(&udp_hash_lock);
++ return result;
++}
++
++#define related(ct) (ct==(IP_CT_IS_REPLY + IP_CT_RELATED))
+
static unsigned int
target_v1(struct sk_buff **pskb,
const struct net_device *in,
-@@ -44,7 +93,20 @@
+@@ -44,7 +153,20 @@
const void *targinfo)
{
const struct xt_mark_target_info_v1 *markinfo = targinfo;
switch (markinfo->mode) {
case XT_MARK_SET:
-@@ -58,13 +120,75 @@
+@@ -58,13 +180,121 @@
case XT_MARK_OR:
mark = (*pskb)->mark | markinfo->mark;
break;
+
-+ case XT_MARK_COPYXID:
-+
-+ ct = nf_ct_get((*pskb), &ctinfo);
-+ if (!ct)
-+ break;
-+
-+ dir = CTINFO2DIR(ctinfo);
-+ src_ip = ct->tuplehash[dir].tuple.src.u3.ip;
-+ dst_ip = ct->tuplehash[dir].tuple.dst.u3.ip;
-+ src_port = get_src_port(&ct->tuplehash[dir].tuple);
-+ proto = ct->tuplehash[dir].tuple.dst.protonum;
-+
-+ dif = ((struct rtable *)(*pskb)->dst)->rt_iif;
-+ ip = ct->tuplehash[dir].tuple.dst.u3.ip;
-+ port = get_dst_port(&ct->tuplehash[dir].tuple);
-+
-+ if (proto == 1 || proto == 17) {
-+ if ((*pskb)->mark>0) /* The packet is marked, it's going out */
-+ {
-+ //if (ct->xid[0]>0 && ct->xid[0]!=(*pskb)->mark)
-+ /*printk(KERN_CRIT "xt_MARK log: %d/%d/%d/%d\n",ct->xid[0],(*pskb)->mark,hooknum==NF_IP_LOCAL_IN,proto);*/
-+
-+ ct->xid[0]=(*pskb)->mark;
++ case XT_MARK_COPYXID:
++ dif = ((struct rtable *)(*pskb)->dst)->rt_iif;
++
++ ct = nf_ct_get((*pskb), &ctinfo);
++ if (!ct)
++ break;
++
++ dir = CTINFO2DIR(ctinfo);
++ src_ip = ct->tuplehash[dir].tuple.src.u3.ip;
++ dst_ip = ct->tuplehash[dir].tuple.dst.u3.ip;
++ src_port = get_src_port(&ct->tuplehash[dir].tuple);
++ proto = ct->tuplehash[dir].tuple.dst.protonum;
++
++ ip = ct->tuplehash[dir].tuple.dst.u3.ip;
++ port = get_dst_port(&ct->tuplehash[dir].tuple);
++
++ if (proto == 1) {
++ if ((*pskb)->mark>0) /* The packet is marked, it's going out */
++ {
++ ct->xid[0]=(*pskb)->mark;
++ }
++
++ if (ct->xid[0] > 0) {
++ mark = ct->xid[0];
++ }
++ }
++ else if (proto == 17) {
++ struct sock *sk;
++ if (!(*pskb)->mark) {
++ sk = __udp4_lib_lookup(src_ip, src_port, ip, port,
++ dif, udp_hash);
++
++ if (sk && hooknum==NF_IP_LOCAL_IN) {
++ mark=sk->sk_nid;
++ }
++
++ if (sk) {
++ sock_put(sk);
++ }
++ }
++ else
++ if ((*pskb)->mark>0) /* The packet is marked, it's going out */
++ {
++ ct->xid[0]=(*pskb)->mark;
++ }
++ }
++ else if (proto == 6) {
++ if ((*pskb)->sk) {
++ /* It's a listening socket */
++ connection_sk = (*pskb)->sk;
++ sock_hold(connection_sk);
++ }
++ else /* It might be a connected socket */
++ connection_sk = inet_lookup_established(&tcp_hashinfo, src_ip, src_port, ip, port, dif);
++
++
++ if (connection_sk /* Well, some kind of TCP socket */) {
++ if (connection_sk->sk_peercred.uid == 0 || connection_sk->sk_peercred.uid == (__u32) -1) {
++ /* Normal case - the peercred on the socket is not set */
++ connection_sk->sk_peercred.gid = connection_sk->sk_peercred.uid = ct->xid[!dir];
++ }
++ else /* Exceptional case - the peercred was set using SET_PEERCRED. Somebody wants us
++ to mark packets with some arbitrary value.*/
++ mark=connection_sk->sk_peercred.uid;
++
++ /* Has this connection already been tagged? */
++ if (ct->xid[dir] < 1) {
++ /* No - let's tag it */
++ ct->xid[dir]=connection_sk->sk_nid;
++ }
++
++ if (mark==-1 && (connection_sk->sk_nid != 0))
++ mark = ct->xid[dir];
++
++
++ if (connection_sk->sk_state == TCP_TIME_WAIT) {
++ inet_twsk_put(inet_twsk(connection_sk));
++ break;
++ }
++ else
++ sock_put(connection_sk);
++ }
++
++ /* Covers CoDemux case */
++ if (mark < 1 && (ct->xid[dir]>0)) {
++ mark = ct->xid[dir];
}
-+ if (ct->xid[0] > 0) {
-+ mark = ct->xid[0];
-+ }
-+
-+ }
-+ else if (proto == 6) {
-+ if ((*pskb)->sk) {
-+ connection_sk = (*pskb)->sk;
-+ sock_hold(connection_sk);
-+ }
-+ else
-+ connection_sk = inet_lookup_established(&tcp_hashinfo, src_ip, src_port, ip, port, dif);
-+
-+
-+ if (connection_sk) {
-+ connection_sk->sk_peercred.gid = connection_sk->sk_peercred.uid = ct->xid[dir];
-+ ct->xid[!dir]=connection_sk->sk_nid;
-+ if (connection_sk->sk_nid != 0)
-+ mark = connection_sk->sk_nid;
-+ if (connection_sk->sk_state == TCP_TIME_WAIT) {
-+ inet_twsk_put(inet_twsk(connection_sk));
-+ break;
-+ }
-+ else
-+ sock_put(connection_sk);
-+ }
-+ else
-+ mark = -1 ;
-+ }
-+ break;
++ if (mark < 1 && (ct->xid[!dir]>0)) {
++ mark = ct->xid[!dir];
++ }
++
++ /* All else failed. Is this a connection over raw sockets? That explains
++ * why we couldn't get anything out of skb->sk, or look up a "real" connection.*/
++ if (ct->xid[dir]<1) {
++ if ((*pskb)->skb_tag) {
++ ct->xid[dir]=(*pskb)->skb_tag;
++ }
++ }
++ }
++ break;
+ }
+ if (mark != -1) {
(*pskb)->mark = mark;
+ }
+
+ curtag=&__get_cpu_var(sknid_elevator);
-+ if (mark > 0 && *curtag==-2)
++ if (mark > 0 && *curtag==-2 && hooknum==NF_IP_LOCAL_IN)
+ {
+ *curtag = mark;
+ }
static int
checkentry_v0(const char *tablename,
const void *entry,
-@@ -92,7 +216,8 @@
+@@ -92,7 +322,8 @@
if (markinfo->mode != XT_MARK_SET
&& markinfo->mode != XT_MARK_AND
return 0;
diff -Nurb linux-2.6.22-521/net/netfilter/xt_SETXID.c linux-2.6.22-522/net/netfilter/xt_SETXID.c
--- linux-2.6.22-521/net/netfilter/xt_SETXID.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.22-522/net/netfilter/xt_SETXID.c 2008-07-13 23:58:41.000000000 -0400
++++ linux-2.6.22-522/net/netfilter/xt_SETXID.c 2008-07-28 16:36:24.000000000 -0400
@@ -0,0 +1,79 @@
+#include <linux/module.h>
+#include <linux/skbuff.h>
git://git.onelab.eu / linux-2.6.git / blobdiff