From 85c5ed4e44a262344ce43b4bf23204107923ca95 Mon Sep 17 00:00:00 2001 From: Shan Wei Date: Tue, 19 Apr 2011 21:30:01 +0000 Subject: 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 Signed-off-by: Shan Wei Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/sctp/input.c | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'net/sctp/input.c') diff --git a/net/sctp/input.c b/net/sctp/input.c index 30cec7732e80..3a8eb79eb78b 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)); -- cgit v1.2.3