commit 4c7efde6db75229069be72b34a93f279fe57d23b
author Donald Sharp <sharpd@cumulusnetworks.com> Mon Nov 16 18:19:18 2015 -0500
committer Paul Jakma <paul.jakma@hpe.com> Tue Oct 04 13:07:51 2016 +0100
tree fb3850cefcb7024fef5f16cc9e056e137d814b04
parent 988a50c54dbd20290c085a36d4c2893f3d515803

zebra: Add check to notice when an interface is unnumbered

If an interface is not a loopback and it's prefixlen == 32
assume that it is unnumbered.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

zebra/connected.c

diff --git a/zebra/connected.c b/zebra/connected.c
index 84b0d1c..1980007 100644
--- a/zebra/connected.c
+++ b/zebra/connected.c
@@ -77,7 +77,15 @@
 {
   if (!ifc)
     return;
-  
+
+  if (!if_is_loopback(ifp) && ifc->address->family == AF_INET)
+    {
+      if (ifc->address->prefixlen == 32)
+        SET_FLAG (ifc->flags, ZEBRA_IFA_UNNUMBERED);
+      else
+        UNSET_FLAG (ifc->flags, ZEBRA_IFA_UNNUMBERED);
+    }
+
   listnode_add (ifp->connected, ifc);
 
   /* Update interface address information to protocol daemon. */