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authorSteffen Klassert <steffen.klassert@secunet.com>2018-02-28 09:23:19 +0100
committerSteffen Klassert <steffen.klassert@secunet.com>2018-03-01 08:14:50 +0100
commitb8b549eec8187ac1b12075d69a2d84d89b5e811a (patch)
treec5acf45f7b62b6504b87f2332e2639f7fb678b49 /net/xfrm
parent013cb81e89f8a70deef086ca29a923faf5585ab0 (diff)
downloadlinux-b8b549eec8187ac1b12075d69a2d84d89b5e811a.tar.bz2
xfrm: Fix ESN sequence number handling for IPsec GSO packets.
When IPsec offloading was introduced, we accidentally incremented the sequence number counter on the xfrm_state by one packet too much in the ESN case. This leads to a sequence number gap of one packet after each GSO packet. Fix this by setting the sequence number to the correct value. Fixes: d7dbefc45cf5 ("xfrm: Add xfrm_replay_overflow functions for offloading") Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_replay.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c
index 1d38c6acf8af..9e3a5e85f828 100644
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -660,7 +660,7 @@ static int xfrm_replay_overflow_offload_esn(struct xfrm_state *x, struct sk_buff
} else {
XFRM_SKB_CB(skb)->seq.output.low = oseq + 1;
XFRM_SKB_CB(skb)->seq.output.hi = oseq_hi;
- xo->seq.low = oseq = oseq + 1;
+ xo->seq.low = oseq + 1;
xo->seq.hi = oseq_hi;
oseq += skb_shinfo(skb)->gso_segs;
}