A Protocol Independent Hierarchical FIB (VPP-352)

Main Enhancements:
 - Protocol Independent FIB API
 - Hierarchical FIB entries. Dynamic recursive route resolution.
 - Extranet Support.
 - Integration of IP and MPLS forwarding.
 - Separation of FIB and Adjacency databases.
 - Data-Plane Object forwarding model.

Change-Id: I52dc815c0d0aa8b493e3cf6b978568f3cc82296c
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/vnet/vnet/adj/adj_rewrite.c b/vnet/vnet/adj/adj_rewrite.c
new file mode 100644
index 00000000..db802e33
--- /dev/null
+++ b/vnet/vnet/adj/adj_rewrite.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2016 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.
+ */
+
+#include <vnet/adj/adj.h>
+#include <vnet/adj/adj_alloc.h>
+#include <vnet/adj/adj_internal.h>
+
+/**
+ * adj_rewrite_add_and_lock
+ *
+ * A rewrite sub-type has the rewrite string provided, but no key
+ */
+adj_index_t
+adj_rewrite_add_and_lock (fib_protocol_t nh_proto,
+			  fib_link_t link_type,
+			  u32 sw_if_index,
+			  u8 *rewrite)
+{
+    ip_adjacency_t *adj;
+
+    adj = adj_alloc(nh_proto);
+
+    adj->lookup_next_index = IP_LOOKUP_NEXT_REWRITE;
+    adj->ia_link = link_type;
+    adj->rewrite_header.sw_if_index = sw_if_index;
+
+    ASSERT(NULL != rewrite);
+
+    vnet_rewrite_for_sw_interface(vnet_get_main(),
+				  adj_fib_link_2_vnet(link_type),
+				  adj->rewrite_header.sw_if_index,
+				  adj_get_rewrite_node(link_type)->index,
+				  rewrite,
+				  &adj->rewrite_header,
+				  sizeof (adj->rewrite_data));
+
+    adj_lock(adj->heap_handle);
+
+    return (adj->heap_handle);
+}