diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-12-12 10:44:43 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:57:23 -0800 |
| commit | 8b7817f3a959ed99d7443afc12f78a7e1fcc2063 (patch) | |
| tree | 7e315dfbf5c77e67f6e7ad56f14eaddca621212b /include/net/dst.h | |
| parent | d5422efe680fc55010c6ddca2370ca9548a96355 (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 'include/net/dst.h')
| -rw-r--r-- | include/net/dst.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index aaa2dbb5017..31468c9aa87 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -268,6 +268,7 @@ extern void dst_init(void); /* Flags for xfrm_lookup flags argument. */ enum { XFRM_LOOKUP_WAIT = 1 << 0, + XFRM_LOOKUP_ICMP = 1 << 1, }; struct flowi; |