commit 89541992000433b743cbbe8cb396faab42bcf6ae
author Neale Ranns <nranns@cisco.com> Thu Apr 06 04:41:02 2017 -0700
committer Damjan Marion <dmarion.lists@gmail.com> Thu Jan 18 14:37:24 2018 +0000
tree 2b09b2178270ad6de191e2eeaa5d3f49148d5a8e
parent bf246dff1b4ea0792c0083f7e5495930b3b225f7

FIB Inherited Srouce

forwarding provided by the source is pushed to all other entries
it covers in the sub-tree

Change-Id: I2a45222ef653358f55c2436de3e3c6353cfadba2
Signed-off-by: Neale Ranns <nranns@cisco.com>

src/vnet/fib/fib_entry_src_adj.c

diff --git a/src/vnet/fib/fib_entry_src_adj.c b/src/vnet/fib/fib_entry_src_adj.c
index 9ea2b17..04c5c8d 100644
--- a/src/vnet/fib/fib_entry_src_adj.c
+++ b/src/vnet/fib/fib_entry_src_adj.c
@@ -201,10 +201,6 @@
     return (FIB_PATH_LIST_WALK_CONTINUE);
 }
 
-/*
- * Source activate.
- * Called when the source is the new longer best source on the entry
- */
 static int
 fib_entry_src_adj_activate (fib_entry_src_t *src,
                             const fib_entry_t *fib_entry)
@@ -262,6 +258,28 @@
 }
 
 /*
+ * Source re-activate.
+ * Called when the source path lit has changed and the source is still
+ * the best source
+ */
+static int
+fib_entry_src_adj_reactivate (fib_entry_src_t *src,
+                              const fib_entry_t *fib_entry)
+{
+    fib_entry_src_path_list_walk_cxt_t ctx = {
+        .cover_itf = fib_entry_get_resolving_interface(src->adj.fesa_cover),
+        .flags = FIB_PATH_EXT_ADJ_FLAG_NONE,
+        .src = src,
+    };
+
+    fib_path_list_walk(src->fes_pl,
+                       fib_entry_src_adj_path_list_walk,
+                       &ctx);
+
+    return (FIB_PATH_EXT_ADJ_FLAG_REFINES_COVER & ctx.flags);
+}
+
+/*
  * Source Deactivate.
  * Called when the source is no longer best source on the entry
  */
@@ -291,7 +309,7 @@
 fib_entry_src_adj_format (fib_entry_src_t *src,
                          u8* s)
 {
-    return (format(s, "cover:%d", src->adj.fesa_cover));
+    return (format(s, " cover:%d", src->adj.fesa_cover));
 }
 
 static void
@@ -368,6 +386,7 @@
     .fesv_remove = fib_entry_src_adj_remove,
     .fesv_activate = fib_entry_src_adj_activate,
     .fesv_deactivate = fib_entry_src_adj_deactivate,
+    .fesv_reactivate = fib_entry_src_adj_reactivate,
     .fesv_format = fib_entry_src_adj_format,
     .fesv_installed = fib_entry_src_adj_installed,
     .fesv_cover_change = fib_entry_src_adj_cover_change,