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authorPatrick McHardy <kaber@trash.net>2007-01-04 12:15:34 -0800
committerDavid S. Miller <davem@davemloft.net>2007-01-04 12:15:34 -0800
commitc68b8b687f9e3afff14b88327e17901fff0478ca (patch)
treef60015bbfd8da9d62479f10cc35328f71f20a792 /net/ipv4/netfilter.c
parente5b5ef7d2b3fa364cb03407c432ae9979657aa6c (diff)
downloadlinux-bcache-c68b8b687f9e3afff14b88327e17901fff0478ca.tar.zst
[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 <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/netfilter.c')
-rw-r--r--net/ipv4/netfilter.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index a68966059b50..c47ce7076bd5 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;
fl.mark = (*pskb)->mark;