From 9c94583a3ded3b2792bd08d88beb10100a82d7b4 Mon Sep 17 00:00:00 2001
From: "Ondrej Zajicek (work)" <santiago@crfreenet.org>
Date: Sun, 3 Feb 2019 16:20:37 +0100
Subject: OSPF: DD seqnum should be initialized only for first attempts

After SeqNumberMismatch/BadLSReq, we should continue with the old
seqnum++. The old code tries to do that by n->adj, but it was set
nowhere.
---
 proto/ospf/neighbor.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'proto/ospf/neighbor.c')

diff --git a/proto/ospf/neighbor.c b/proto/ospf/neighbor.c
index 7ce682b0..54d643c6 100644
--- a/proto/ospf/neighbor.c
+++ b/proto/ospf/neighbor.c
@@ -176,8 +176,8 @@ ospf_neigh_chstate(struct ospf_neighbor *n, u8 state)
 
   if (state == NEIGHBOR_EXSTART)
   {
-    /* First time adjacency */
-    if (n->adj == 0)
+    /* First time adjacency attempt */
+    if (old_state < NEIGHBOR_EXSTART)
       n->dds = random_u32();
 
     n->dds++;
-- 
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