netfilter: nfmark routing in OUTPUT, mangle, NFQUEUE
This patch let nfmark to be evaluated for routing decision for OUTPUT
packet, in mangle table, when process paquet in NFQUEUE
Until now, only change (in NFQUEUE process) on fields src_addr,
dest_addr and tos could make netfilter to reevalute the routing.
From: Laurent Licour <laurent@licour.com>
Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 6efdb70..7c145d7 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -125,6 +125,7 @@
__be32 daddr;
__be32 saddr;
u_int8_t tos;
+ u_int32_t mark;
};
static void nf_ip_saveroute(const struct sk_buff *skb,
@@ -138,6 +139,7 @@
rt_info->tos = iph->tos;
rt_info->daddr = iph->daddr;
rt_info->saddr = iph->saddr;
+ rt_info->mark = skb->mark;
}
}
@@ -150,6 +152,7 @@
const struct iphdr *iph = ip_hdr(skb);
if (!(iph->tos == rt_info->tos
+ && skb->mark == rt_info->mark
&& iph->daddr == rt_info->daddr
&& iph->saddr == rt_info->saddr))
return ip_route_me_harder(skb, RTN_UNSPEC);