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authorHerbert Xu <herbert@gondor.apana.org.au>2007-12-12 10:44:43 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:57:23 -0800
commit8b7817f3a959ed99d7443afc12f78a7e1fcc2063 (patch)
tree7e315dfbf5c77e67f6e7ad56f14eaddca621212b /net/ipv4/af_inet.c
parentd5422efe680fc55010c6ddca2370ca9548a96355 (diff)
[IPSEC]: Add ICMP host relookup support
RFC 4301 requires us to relookup ICMP traffic that does not match any policies using the reverse of its payload. This patch implements this for ICMP traffic that originates from or terminates on localhost. This is activated on outbound with the new policy flag XFRM_POLICY_ICMP, and on inbound by the new state flag XFRM_STATE_ICMP. On inbound the policy check is now performed by the ICMP protocol so that it can repeat the policy check where necessary. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/af_inet.c')
-rw-r--r--net/ipv4/af_inet.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 7f8b27ff94ff..5089a369e99c 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1291,6 +1291,7 @@ static struct net_protocol udp_protocol = {
static struct net_protocol icmp_protocol = {
.handler = icmp_rcv,
+ .no_policy = 1,
};
static int __init init_ipv4_mibs(void)