MFIB: recurse resolution through an MFIB entry

Change-Id: I8dc261e40b8398c5c8ab6bb69ecebbd0176055d9
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/src/vnet/mfib/mfib_entry_cover.h b/src/vnet/mfib/mfib_entry_cover.h
new file mode 100644
index 00000000000..8f165c29dfd
--- /dev/null
+++ b/src/vnet/mfib/mfib_entry_cover.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __MFIB_ENTRY_COVER_H__
+#define __MFIB_ENTRY_COVER_H__
+
+#include <vnet/mfib/mfib_entry.h>
+
+/**
+ * callback function used when walking the covered entries
+ */
+typedef int (*mfib_entry_covered_walk_t)(mfib_entry_t *cover,
+                                         fib_node_index_t covered,
+                                         void *ctx);
+
+extern u32 mfib_entry_cover_track(mfib_entry_t *cover,
+                                  fib_node_index_t covered);
+
+extern void mfib_entry_cover_untrack(mfib_entry_t *cover,
+                                     u32 tracked_index);
+
+extern void mfib_entry_cover_walk(mfib_entry_t *cover,
+                                  mfib_entry_covered_walk_t walk,
+                                  void *ctx);
+
+extern void mfib_entry_cover_change_notify(fib_node_index_t cover_index,
+                                           fib_node_index_t covered_index);
+extern void mfib_entry_cover_update_notify(mfib_entry_t *cover);
+
+#endif