stream: fix retransmission on closewait being considered out of window

src/stream-tcp.c

@@ -3239,14 +3239,13 @@ static int StreamTcpPacketStateCloseWait(ThreadVars *tv, Packet *p,
                 StreamTcpSetEvent(p, STREAM_CLOSEWAIT_PKT_BEFORE_LAST_ACK);
                 SCReturnInt(-1);
 
-            } else if (SEQ_LT(TCP_GET_SEQ(p), ssn->client.next_seq) ||
-                    SEQ_GT(TCP_GET_SEQ(p), (ssn->client.last_ack + ssn->client.window)))
+            } else if (SEQ_GT(TCP_GET_SEQ(p), (ssn->client.last_ack + ssn->client.window)))
             {
                 SCLogDebug("ssn %p: -> SEQ mismatch, packet SEQ %" PRIu32 ""
                         " != %" PRIu32 " from stream", ssn,
                         TCP_GET_SEQ(p), ssn->client.next_seq);
-                SCReturnInt(-1);
                 StreamTcpSetEvent(p, STREAM_CLOSEWAIT_ACK_OUT_OF_WINDOW);
+                SCReturnInt(-1);
             }
 
             if (StreamTcpValidateAck(ssn, &ssn->server, p) == -1) {
@@ -3286,8 +3285,7 @@ static int StreamTcpPacketStateCloseWait(ThreadVars *tv, Packet *p,
                 StreamTcpSetEvent(p, STREAM_CLOSEWAIT_PKT_BEFORE_LAST_ACK);
                 SCReturnInt(-1);
 
-            } else if (SEQ_LT(TCP_GET_SEQ(p), ssn->server.next_seq) ||
-                    SEQ_GT(TCP_GET_SEQ(p), (ssn->server.last_ack + ssn->server.window)))
+            } else if (SEQ_GT(TCP_GET_SEQ(p), (ssn->server.last_ack + ssn->server.window)))
             {
                 SCLogDebug("ssn %p: -> SEQ mismatch, packet SEQ %" PRIu32 ""
                         " != %" PRIu32 " from stream", ssn,