From: Victor Julien <victor@inliniac.net>
Date: Tue, 16 Oct 2012 13:53:48 +0000 (+0200)
Subject: stream: detect retransmissions on timewait state
X-Git-Tag: suricata-1.4beta3~79
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a25629b25083c04b67d78afc47909067fd5d8fc3;p=thirdparty%2Fsuricata.git

stream: detect retransmissions on timewait state
---

diff --git a/src/stream-tcp.c b/src/stream-tcp.c
index fd504c18a6..c4d463ec2d 100644
--- a/src/stream-tcp.c
+++ b/src/stream-tcp.c
@@ -3576,6 +3576,9 @@ static int StreamTcpPacketStateTimeWait(ThreadVars *tv, Packet *p,
                 if (p->payload_len > 0 && TCP_GET_SEQ(p) == ssn->server.last_ack) {
                     SCLogDebug("ssn %p: -> retransmission", ssn);
                     retransmission = 1;
+                } else if (p->payload_len > 0 && SEQ_LEQ((TCP_GET_SEQ(p) + p->payload_len), ssn->server.last_ack)) {
+                    SCLogDebug("ssn %p: -> retransmission", ssn);
+                    retransmission = 1;
                 } else {
                     SCLogDebug("ssn %p: -> SEQ mismatch, packet SEQ %" PRIu32 ""
                             " != %" PRIu32 " from stream", ssn,