Ignore some routing messages indicating changes that don't affect our

set of local addresses.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@23570 dc483132-0cff-0310-8789-dd5450dbe970

diff --git a/src/kdc/network.c b/src/kdc/network.c
index 00218a7cd92c0e51e7a9cbcd5533edd9aa4ee8d6..dfb478c9c2570cba9192c9f4036484267c85a823 100644 (file)
--- a/src/kdc/network.c
+++ b/src/kdc/network.c
@@ -846,6 +846,30 @@ static void process_routing_update(struct connection *conn, int selflags)
         case RTM_IFINFO:
         case RTM_OLDADD:
         case RTM_OLDDEL:
+            /*
+             * Some flags indicate routing table updates that don't
+             * indicate local address changes.  They may come from
+             * redirects, or ARP, etc.
+             *
+             * This set of symbols is just an initial guess based on
+             * some messages observed in real life; working out which
+             * other flags also indicate messages we should ignore,
+             * and which flags are portable to all system and thus
+             * don't need to be conditionalized, is left as a future
+             * exercise.
+             */
+#ifdef RTF_DYNAMIC
+            if (rtm.rtm_flags & RTF_DYNAMIC)
+                break;
+#endif
+#ifdef RTF_CLONED
+            if (rtm.rtm_flags & RTF_CLONED)
+                break;
+#endif
+#ifdef RTF_LLINFO
+            if (rtm.rtm_flags & RTF_LLINFO)
+                break;
+#endif
 #if 0
             krb5_klog_syslog(LOG_DEBUG,
                              "network reconfiguration message (%s) received",