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author | Eric Dumazet <edumazet@google.com> | 2015-12-07 08:53:17 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2015-12-07 17:07:33 -0500 |
commit | bd5eb35f16a9c55afcf5eb1c920cbbaf09747369 (patch) | |
tree | 04ee2f972b0b0a04efebdb79f14f391bec142170 /net/xfrm | |
parent | 69ce6487dcd364245a3d26322fc8f4ffd1e8d947 (diff) | |
download | linux-bd5eb35f16a9c55afcf5eb1c920cbbaf09747369.tar.gz |
xfrm: take care of request sockets
TCP SYNACK messages might now be attached to request sockets. XFRM needs to get back to a listener socket. Adds new helpers that might be used elsewhere : sk_to_full_sk() and sk_const_to_full_sk() Note: We also need to add RCU protection for xfrm lookups, now TCP/DCCP have lockless listener processing. This will be addressed in separate patches. Fixes: ca6fb0651883 ("tcp: attach SYNACK messages to request sockets instead of listener") Reported-by: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm')
-rw-r--r-- | net/xfrm/xfrm_policy.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 09bfcbac63bb..18276f0cc32b 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2198,6 +2198,7 @@ struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig, xdst = NULL; route = NULL; + sk = sk_const_to_full_sk(sk); if (sk && sk->sk_policy[XFRM_POLICY_OUT]) { num_pols = 1; pols[0] = xfrm_sk_policy_lookup(sk, XFRM_POLICY_OUT, fl); @@ -2477,6 +2478,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb, } pol = NULL; + sk = sk_to_full_sk(sk); if (sk && sk->sk_policy[dir]) { pol = xfrm_sk_policy_lookup(sk, dir, &fl); if (IS_ERR(pol)) { |