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, 97 insertions, 0 deletions

diff --git a/vnet/vnet/adj/adj_internal.h b/vnet/vnet/adj/adj_internal.h
new file mode 100644
index 00000000000..79042d1fd2a
--- /dev/null
+++ b/vnet/vnet/adj/adj_internal.h
@@ -0,0 +1,97 @@
+/*
+ * 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.
+ */
+
+#ifndef __ADJ_INTERNAL_H__
+#define __ADJ_INTERNAL_H__
+
+#include <vnet/adj/adj.h>
+#include <vnet/ip/ip.h>
+#include <vnet/mpls/mpls.h>
+
+
+/**
+ * big switch to turn on Adjacency debugging
+ */
+#undef ADJ_DEBUG
+
+/*
+ * Debug macro
+ */
+#ifdef ADJ_DEBUG
+#define ADJ_DBG(_adj, _fmt, _args...)			\
+{							\
+    clib_warning("adj:[%d:%p]:" _fmt,			\
+		 _adj->heap_handle, _adj,		\
+		 ##_args);				\
+}
+#else
+#define ADJ_DBG(_e, _fmt, _args...)
+#endif
+
+static inline vlib_node_registration_t*
+adj_get_rewrite_node (fib_link_t linkt)
+{
+    switch (linkt) {
+    case FIB_LINK_IP4:
+	return (&ip4_rewrite_node);
+    case FIB_LINK_IP6:
+	return (&ip6_rewrite_node);
+    case FIB_LINK_MPLS:
+	return (&mpls_output_node);
+    }
+    ASSERT(0);
+    return (NULL);
+}
+
+static inline vnet_l3_packet_type_t
+adj_fib_link_2_vnet (fib_link_t linkt)
+{
+    switch (linkt)
+    {
+    case FIB_LINK_IP4:
+	return (VNET_L3_PACKET_TYPE_IP4);
+    case FIB_LINK_IP6:
+	return (VNET_L3_PACKET_TYPE_IP6);
+    case FIB_LINK_MPLS:
+	return (VNET_L3_PACKET_TYPE_MPLS_UNICAST);
+    }
+    return (0);
+}
+
+static inline vnet_l3_packet_type_t
+adj_fib_proto_2_nd (fib_protocol_t fp)
+{
+    switch (fp)
+    {
+    case FIB_PROTOCOL_IP4:
+	return (VNET_L3_PACKET_TYPE_ARP);
+    case FIB_PROTOCOL_IP6:
+	return (VNET_L3_PACKET_TYPE_IP6);
+    case FIB_PROTOCOL_MPLS:
+	return (VNET_L3_PACKET_TYPE_MPLS_UNICAST);
+    }
+    return (0);
+}
+
+extern ip_adjacency_t * adj_alloc(fib_protocol_t proto);
+
+extern void adj_nbr_remove(fib_protocol_t nh_proto,
+			   fib_link_t link_type,
+			   const ip46_address_t *nh_addr,
+			   u32 sw_if_index);
+extern void adj_glean_remove(fib_protocol_t proto,
+			     u32 sw_if_index);
+
+#endif