From: Victor Julien <victor@inliniac.net>
Date: Tue, 28 Feb 2017 22:13:00 +0000 (+0100)
Subject: stream: validate code
X-Git-Tag: suricata-4.0.0-beta1~154
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee00a6f2ec9d91d343a15f7de487dd58a03edbd4;p=thirdparty%2Fsuricata.git

stream: validate code
---

diff --git a/src/stream-tcp-list.c b/src/stream-tcp-list.c
index fbd697d871..2546c5d3d2 100644
--- a/src/stream-tcp-list.c
+++ b/src/stream-tcp-list.c
@@ -913,6 +913,24 @@ void PrintList(TcpSegment *seg)
     }
 }
 
+void ValidateList(const TcpStream *stream)
+{
+    TcpSegment *seg = stream->seg_list;
+    TcpSegment *prev_seg = NULL;
+
+    BUG_ON(seg && seg->next == NULL && stream->seg_list != stream->seg_list_tail);
+    BUG_ON(stream->seg_list != stream->seg_list_tail && stream->seg_list_tail->prev == NULL);
+
+    while (seg != NULL) {
+        prev_seg = seg;
+        seg = seg->next;
+        BUG_ON(seg && seg->prev != prev_seg);
+
+        // equal is possible
+        BUG_ON(seg && SEQ_LT(seg->seq, prev_seg->seq));
+    }
+}
+
 /*
  *  unittests
  */