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authorLaszlo Attila Toth <panther@balabit.hu>2008-01-31 06:08:16 +0300
committerDavid S. Miller <davem@davemloft.net>2008-02-01 06:27:19 +0300
commit4a19ec5800fc3bb64e2d87c4d9fdd9e636086fe0 (patch)
tree610bd4e7dbcbdae25ba3806f4256745e98617825 /net/ipv4/ip_output.c
parent036c2e27bc3a6498afb35de017d810194032d765 (diff)
downloadlinux-4a19ec5800fc3bb64e2d87c4d9fdd9e636086fe0.tar.xz
[NET]: Introducing socket mark socket option.
A userspace program may wish to set the mark for each packets its send without using the netfilter MARK target. Changing the mark can be used for mark based routing without netfilter or for packet filtering. It requires CAP_NET_ADMIN capability. Signed-off-by: Laszlo Attila Toth <panther@balabit.hu> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_output.c')
-rw-r--r--net/ipv4/ip_output.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 6e4d5f493bf9..341779e685d9 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -168,6 +168,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
}
skb->priority = sk->sk_priority;
+ skb->mark = sk->sk_mark;
/* Send it out. */
return ip_local_out(skb);
@@ -385,6 +386,7 @@ packet_routed:
(skb_shinfo(skb)->gso_segs ?: 1) - 1);
skb->priority = sk->sk_priority;
+ skb->mark = sk->sk_mark;
return ip_local_out(skb);
@@ -1286,6 +1288,7 @@ int ip_push_pending_frames(struct sock *sk)
iph->daddr = rt->rt_dst;
skb->priority = sk->sk_priority;
+ skb->mark = sk->sk_mark;
skb->dst = dst_clone(&rt->u.dst);
if (iph->protocol == IPPROTO_ICMP)