fib: Source Address Selection

[vpp.git] / src / vnet / fib / fib_table.c

diff --git a/src/vnet/fib/fib_table.c b/src/vnet/fib/fib_table.c
index ac0f2da..e71e6c3 100644 (file)
--- a/src/vnet/fib/fib_table.c
+++ b/src/vnet/fib/fib_table.c
@@ -510,7 +510,7 @@ fib_table_route_path_fixup (const fib_prefix_t *prefix,
         (~0 == path->frp_sw_if_index) &&
         (0 == ip46_address_cmp(&path->frp_addr, &prefix->fp_addr)))
     {
-        /* Prefix recurses via itse;f */
+        /* Prefix recurses via itself */
        path->frp_flags |= FIB_ROUTE_PATH_DROP;
     }
     if (!(path->frp_flags & FIB_ROUTE_PATH_LOCAL) &&
@@ -522,6 +522,15 @@ fib_table_route_path_fixup (const fib_prefix_t *prefix,
        path->frp_addr = prefix->fp_addr;
         path->frp_flags |= FIB_ROUTE_PATH_ATTACHED;
     }
+    else if ((*eflags & FIB_ENTRY_FLAG_CONNECTED) &&
+             !(*eflags & FIB_ENTRY_FLAG_LOCAL))
+    {
+        if (ip46_address_is_zero(&path->frp_addr))
+        {
+            path->frp_flags |= FIB_ROUTE_PATH_GLEAN;
+            fib_prefix_normalize(prefix, &path->frp_connected);
+        }
+    }
     if (*eflags & FIB_ENTRY_FLAG_DROP)
     {
        path->frp_flags |= FIB_ROUTE_PATH_DROP;
@@ -580,6 +589,13 @@ fib_table_entry_path_add (u32 fib_index,
     return (fib_entry_index);
 }
 
+static int
+fib_route_path_cmp_for_sort (void * v1,
+                            void * v2)
+{
+    return (fib_route_path_cmp(v1, v2));
+}
+
 fib_node_index_t
 fib_table_entry_path_add2 (u32 fib_index,
                           const fib_prefix_t *prefix,
@@ -598,6 +614,11 @@ fib_table_entry_path_add2 (u32 fib_index,
     {
        fib_table_route_path_fixup(prefix, &flags, &rpaths[ii]);
     }
+    /*
+     * sort the paths provided by the control plane. this means
+     * the paths and the extension on the entry will be sorted.
+     */
+    vec_sort_with_function(rpaths, fib_route_path_cmp_for_sort);
 
     if (FIB_NODE_INDEX_INVALID == fib_entry_index)
     {
@@ -740,13 +761,6 @@ fib_table_entry_path_remove (u32 fib_index,
     vec_free(paths);
 }
 
-static int
-fib_route_path_cmp_for_sort (void * v1,
-                            void * v2)
-{
-    return (fib_route_path_cmp(v1, v2));
-}
-
 fib_node_index_t
 fib_table_entry_update (u32 fib_index,
                        const fib_prefix_t *prefix,