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authorMartin Mares <mj@ucw.cz>2000-03-01 12:48:11 +0100
committerMartin Mares <mj@ucw.cz>2000-03-01 12:48:11 +0100
commit4c1b4e1a582ea8d13943c46ad87588d5743439cb (patch)
tree9dc106efa5ccb22752ab57d5682f1155dbbd5859 /nest
parentaee539f241dd233eb9e716e11ee2c449ab482a75 (diff)
downloadbird-4c1b4e1a582ea8d13943c46ad87588d5743439cb.tar
bird-4c1b4e1a582ea8d13943c46ad87588d5743439cb.zip
If the user has specified identical preferences for instances of different
protocols, break the tie by comparing addresses, so we keep the ordering unambiguous.
Diffstat (limited to 'nest')
-rw-r--r--nest/rt-table.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/nest/rt-table.c b/nest/rt-table.c
index dcde0af..4c406cf 100644
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -95,7 +95,14 @@ rte_better(rte *new, rte *old)
if (new->pref < old->pref)
return 0;
if (new->attrs->proto->proto != old->attrs->proto->proto)
- bug("Different protocols, but identical preferences => oops"); /* FIXME */
+ {
+ /*
+ * If the user has configured protocol preferences, so that two different protocols
+ * have the same preference, try to break the tie by comparing addresses. Not too
+ * useful, but keeps the ordering of routes unambiguous.
+ */
+ return new->attrs->proto->proto > old->attrs->proto->proto;
+ }
if (better = new->attrs->proto->rte_better)
return better(new, old);
return 0;