From 32e1c010b0c34fd0984f7fc45fae648a182025c5 Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Tue, 22 Nov 2016 17:07:28 +0000 Subject: IP Multicast FIB (mfib) - IPv[46] mfib tables with support for (*,G/m), (*,G) and (S,G) exact and longest prefix match - Replication represented via a new replicate DPO. - RPF configuration and data-plane checking - data-plane signals sent to listening control planes. The functions of multicast forwarding entries differ from their unicast conterparts, so we introduce a new mfib_table_t and mfib_entry_t objects. However, we re-use the fib_path_list to resolve and build the entry's output list. the fib_path_list provides the service to construct a replicate DPO for multicast. 'make tests' is added to with two new suites; TEST=mfib, this is invocation of the CLI command 'test mfib' which deals with many path add/remove, flag set/unset scenarios, TEST=ip-mcast, data-plane forwarding tests. Updated applications to use the new MIFB functions; - IPv6 NS/RA. - DHCPv6 unit tests for these are undated accordingly. Change-Id: I49ec37b01f1b170335a5697541c8fd30e6d3a961 Signed-off-by: Neale Ranns --- src/vnet/adj/adj_mcast.h | 78 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/vnet/adj/adj_mcast.h (limited to 'src/vnet/adj/adj_mcast.h') diff --git a/src/vnet/adj/adj_mcast.h b/src/vnet/adj/adj_mcast.h new file mode 100644 index 00000000000..21c5a1417dd --- /dev/null +++ b/src/vnet/adj/adj_mcast.h @@ -0,0 +1,78 @@ +/* + * 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. + */ + +/** + * @brief Mcast Adjacency + * + * The multicast adjacency forwards IP traffic on an interface toward a multicast + * group address. This is a different type of adjacency to a unicast adjacency + * since the application of the MAC header is different, and so the VLIB node + * visited is also different. DPO types have different VLIB nodes. + */ + +#ifndef __ADJ_MCAST_H__ +#define __ADJ_MCAST_H__ + +#include + +/** + * @brief + * Add (and lock) a new or lock an existing mcast adjacency + * + * @param proto + * The protocol for the neighbours that we wish to mcast + * + * @param link_type + * A description of the protocol of the packets that will forward + * through this adj. On an ethernet interface this is the MAC header's + * ether-type + * + * @param sw_if_index + * The interface on which to mcast + */ +extern adj_index_t adj_mcast_add_or_lock(fib_protocol_t proto, + vnet_link_t link_type, + u32 sw_if_index); + +/** + * @brief + * Update the rewrite string for an existing adjacecny. + * + * @param + * The index of the adj to update + * + * @param + * The new rewrite + */ +extern void adj_mcast_update_rewrite(adj_index_t adj_index, + u8 *rewrite); + +/** + * @brief Format/display a mcast adjacency. + */ +extern u8* format_adj_mcast(u8* s, va_list *ap); + +/** + * @brief Get the sze of the mcast adj DB. Test purposes only. + */ +extern u32 adj_mcast_db_size(void); + +/** + * @brief + * Module initialisation + */ +extern void adj_mcast_module_init(void); + +#endif -- cgit 1.2.3-korg