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authorShan Wei <shanwei@cn.fujitsu.com>2011-04-19 21:30:01 +0000
committerDavid S. Miller <davem@davemloft.net>2011-04-20 01:51:04 -0700
commit85c5ed4e44a262344ce43b4bf23204107923ca95 (patch)
tree1b494d271d2e08a4f316bbf8cbeb677eed11b939 /net/sctp/input.c
parentdeb85a6ecc432a4f342004a6ac2a0dad7cba6846 (diff)
sctp: handle ootb packet in chunk order as defined
Changed the order of processing SHUTDOWN ACK and COOKIE ACK refer to section 8.4:Handle "Out of the Blue" Packets. SHUTDOWN ACK chunk should be processed before processing "Stale Cookie" ERROR or a COOKIE ACK. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/input.c')
-rw-r--r--net/sctp/input.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 30cec7732e8..3a8eb79eb78 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -661,7 +661,6 @@ static int sctp_rcv_ootb(struct sk_buff *skb)
{
sctp_chunkhdr_t *ch;
__u8 *ch_end;
- sctp_errhdr_t *err;
ch = (sctp_chunkhdr_t *) skb->data;
@@ -697,20 +696,6 @@ static int sctp_rcv_ootb(struct sk_buff *skb)
if (SCTP_CID_INIT == ch->type && (void *)ch != skb->data)
goto discard;
- /* RFC 8.4, 7) If the packet contains a "Stale cookie" ERROR
- * or a COOKIE ACK the SCTP Packet should be silently
- * discarded.
- */
- if (SCTP_CID_COOKIE_ACK == ch->type)
- goto discard;
-
- if (SCTP_CID_ERROR == ch->type) {
- sctp_walk_errors(err, ch) {
- if (SCTP_ERROR_STALE_COOKIE == err->cause)
- goto discard;
- }
- }
-
ch = (sctp_chunkhdr_t *) ch_end;
} while (ch_end < skb_tail_pointer(skb));