quagga: delete interface from default table when moved to vrf

All daemons changed to flag an interface that has been moved to a vrf as DELETED instead of INTERNAL.
When they were flagged as IFINDEX_INTERNAL, ospf, rip, and isis would re-install them in the default
assuming that they were being "pre-defined" before the kernel definitions.

Ticket: CM-9265
Signed-off-by: Don Slice
Reviewed-by: Donald Sharp

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/if.h b/lib/if.h
index a411e709f..a8e674765 100644
--- a/lib/if.h
+++ b/lib/if.h
@@ -84,6 +84,7 @@ struct interface
      deleted interfaces). */
   unsigned int ifindex;
 #define IFINDEX_INTERNAL	0
+#define IFINDEX_DELETED         UINT_MAX
 
   /* Zebra internal interface status */
   u_char status;