From: Ondrej Zajicek (work) <santiago@crfreenet.org>
Date: Tue, 19 Feb 2019 15:26:09 +0000 (+0100)
Subject: Nest: Prevent withdraws from propagation back to source protocol (for accepted mode)
X-Git-Tag: v2.0.4~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3a8ca7abbcf6452fa56d0c1c6ddcf7d5bd6876ed;p=thirdparty%2Fbird.git

Nest: Prevent withdraws from propagation back to source protocol (for accepted mode)

Update for one of previous patches, handles the the issue for
first-accepted mode of route propagation.
---

diff --git a/nest/rt-table.c b/nest/rt-table.c
index a19005322..85afe8386 100644
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -621,7 +621,7 @@ rt_notify_basic(struct channel *c, net *net, rte *new0, rte *old0, int refeed)
 static void
 rt_notify_accepted(struct channel *c, net *net, rte *new_changed, rte *old_changed, rte *before_old, int feed)
 {
-  // struct proto *p = c->proto;
+  struct proto *p = c->proto;
 
   rte *r;
   rte *new_best = NULL;
@@ -698,7 +698,9 @@ rt_notify_accepted(struct channel *c, net *net, rte *new_changed, rte *old_chang
    */
 
   /* Hack for changed filters */
-  if (old_changed && (old_changed->lastmod <= c->last_tx_filter_change))
+  if (old_changed &&
+      (p != old_changed->sender->proto) &&
+      (old_changed->lastmod <= c->last_tx_filter_change))
     {
       old_best = old_changed;
       goto found;