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authorJames Chapman <jchapman@katalix.com>2012-05-09 23:43:09 +0000
committerDavid S. Miller <davem@davemloft.net>2012-05-10 23:27:34 -0400
commitd301e3256866bfd3ae3093aeb43d3ca9570d758e (patch)
tree7395dbcfcefa7bbd1fc4ad68d8beed12190819be
parent38d40b3f4e223336422b7e87cb483e758ef87e3a (diff)
downloadlinux-d301e3256866bfd3ae3093aeb43d3ca9570d758e.tar.bz2
l2tp: fix data packet sequence number handling
If enabled, L2TP data packets have sequence numbers which a receiver can use to drop out of sequence frames or try to reorder them. The first frame has sequence number 0, but the L2TP code currently expects it to be 1. This results in the first data frame being handled as out of sequence. This one-line patch fixes the problem. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/l2tp/l2tp_core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index d1ab3a236cca..0d6aedc3a0ce 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1762,7 +1762,7 @@ struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunn
session->session_id = session_id;
session->peer_session_id = peer_session_id;
- session->nr = 1;
+ session->nr = 0;
sprintf(&session->name[0], "sess %u/%u",
tunnel->tunnel_id, session->session_id);