bgpd, lib, zebra: Add ability to retrieve ifp without specifying a vrf

There are cases where we get an interface name but do not have a
corresponding vrf.  We care about getting an interface pointer
so just provide a function that searches all vrf's for the ifp.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Radhicak Mahankali <radhika@cumulusnetworks.com>
Reviewed-by: Vivek Venkatraman <vivek@cumulusnetworks.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/lib/if.c b/lib/if.c
index cf88b031b3..443cd419be 100644
--- a/lib/if.c
+++ b/lib/if.c
@@ -291,6 +291,24 @@ if_lookup_by_name_vrf (const char *name, vrf_id_t vrf_id)
 }
 
 struct interface *
+if_lookup_by_name_all_vrf (const char *name)
+{
+  struct interface *ifp;
+  struct vrf *vrf = NULL;
+  vrf_iter_t iter;
+
+  for (iter = vrf_first (); iter != VRF_ITER_INVALID; iter = vrf_next (iter))
+    {
+      vrf = vrf_iter2vrf (iter);
+      ifp = if_lookup_by_name_vrf (name, vrf->vrf_id);
+      if (ifp)
+	return ifp;
+    }
+
+  return NULL;
+}
+
+struct interface *
 if_lookup_by_name (const char *name)
 {
   return if_lookup_by_name_vrf (name, VRF_DEFAULT);