Hi,
a tiny kernel patch to allow getsockopt() with SO_ORIGINAL_DST to work
for SCTP:
diff -rup
linux-2.6.28.orig/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
linux-2.6.28/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
--- linux-2.6.28.orig/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
2008-12-24 15:26:37.000000000 -0800
+++ linux-2.6.28/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
2009-07-02 17:07:09.000000000 -0700
@@ -258,11 +258,11 @@ getorigdst(struct sock *sk, int optval,
tuple.dst.u3.ip = inet->daddr;
tuple.dst.u.tcp.port = inet->dport;
tuple.src.l3num = PF_INET;
- tuple.dst.protonum = IPPROTO_TCP;
+ tuple.dst.protonum = sk->sk_protocol;
- /* We only do TCP at the moment: is there a better way? */
- if (strcmp(sk->sk_prot->name, "TCP")) {
- pr_debug("SO_ORIGINAL_DST: Not a TCP socket\n");
+ /* We only do TCP and SCTP at the moment: is there a better way? */
+ if ((sk->sk_protocol != IPPROTO_TCP) && (sk->sk_protocol !=
IPPROTO_SCTP)) {
+ pr_debug("SO_ORIGINAL_DST: Not a TCP/SCTP socket\n");
return -ENOPROTOOPT;
}
Rafael
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