From 8c10ebbf6838583183d2846b7d61742704b8b055 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Wed, 10 Jan 2007 08:04:46 +0100 Subject: [PATCH] [PATCH] NETFILTER: Fix routing of REJECT target generated packets in output chain Packets generated by the REJECT target in the output chain have a local destination address and a foreign source address. Make sure not to use the foreign source address for the output route lookup. Signed-off-by: Patrick McHardy Signed-off-by: Chris Wright --- net/ipv4/netfilter.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c index e2005c6810a4..0147a18f7ebb 100644 --- a/net/ipv4/netfilter.c +++ b/net/ipv4/netfilter.c @@ -15,16 +15,19 @@ int ip_route_me_harder(struct sk_buff **pskb, unsigned addr_type) struct flowi fl = {}; struct dst_entry *odst; unsigned int hh_len; + unsigned int type; + type = inet_addr_type(iph->saddr); if (addr_type == RTN_UNSPEC) - addr_type = inet_addr_type(iph->saddr); + addr_type = type; /* some non-standard hacks like ipt_REJECT.c:send_reset() can cause * packets with foreign saddr to appear on the NF_IP_LOCAL_OUT hook. */ if (addr_type == RTN_LOCAL) { fl.nl_u.ip4_u.daddr = iph->daddr; - fl.nl_u.ip4_u.saddr = iph->saddr; + if (type == RTN_LOCAL) + fl.nl_u.ip4_u.saddr = iph->saddr; fl.nl_u.ip4_u.tos = RT_TOS(iph->tos); fl.oif = (*pskb)->sk ? (*pskb)->sk->sk_bound_dev_if : 0; #ifdef CONFIG_IP_ROUTE_FWMARK -- 2.39.5