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| author | Patrick McHardy <kaber@trash.net> | 2007-06-18 22:30:15 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-06-18 22:30:15 -0700 |
| commit | 281216177a407f78cfd650ee4391afc487577193 (patch) | |
| tree | 47325468a011757f3c4169e83d3172b744b5c9e5 /net/xfrm | |
| parent | fa490cfd15d7ce0900097cc4e60cfd7a76381138 (diff) | |
| download | linux-3.10-281216177a407f78cfd650ee4391afc487577193.tar.gz linux-3.10-281216177a407f78cfd650ee4391afc487577193.tar.bz2 linux-3.10-281216177a407f78cfd650ee4391afc487577193.zip | |
[XFRM]: Fix MTU calculation for non-ESP SAs
My IPsec MTU optimization patch introduced a regression in MTU calculation
for non-ESP SAs, the SA's header_len needs to be subtracted from the MTU if
the transform doesn't provide a ->get_mtu() function.
Reported-and-tested-by: Marco Berizzi <pupilla@hotmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/xfrm_state.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 85f3f43a6cc..dfacb9c2a6e 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -1729,7 +1729,7 @@ int xfrm_state_mtu(struct xfrm_state *x, int mtu) x->type && x->type->get_mtu) res = x->type->get_mtu(x, mtu); else - res = mtu; + res = mtu - x->props.header_len; spin_unlock_bh(&x->lock); return res; } |