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 <nranns@cisco.com>

1 files changed, 0 insertions, 149 deletions

diff --git a/src/vnet/mcast/mcast_test.c b/src/vnet/mcast/mcast_test.c
deleted file mode 100644
index be80c9fc..00000000
--- a/src/vnet/mcast/mcast_test.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright (c) 2015 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/mcast/mcast.h>
-
-#include <vlib/vlib.h>
-#include <vnet/vnet.h>
-#include <vnet/pg/pg.h>
-#include <vppinfra/error.h>
-#include <vnet/ip/lookup.h>
-#include <vnet/ip/ip4_packet.h>
-#include <vnet/ip/icmp46_packet.h>
-#include <vnet/ip/ip4.h>
-#include <vnet/mcast/mcast.h>
-
-typedef struct {
-  /* convenience */
-  vlib_main_t * vlib_main;
-  vnet_main_t * vnet_main;
-  mcast_main_t * mcast_main;
-} mcast_test_main_t;
-
-mcast_test_main_t mcast_test_main;
-vlib_node_registration_t mcast_prep_node;
-vlib_node_registration_t mcast_recycle_node;
-
-static clib_error_t *
-mcast_test_command_fn (vlib_main_t * vm,
-		 unformat_input_t * input,
-		 vlib_cli_command_t * cmd)
-{
-  /* u8 *rewrite_data; */
-  /* mcast_test_main_t * mtm = &mcast_test_main; */
-  /* mcast_main_t * mcm = mtm->mcast_main; */
-  /* ip_adjacency_t adj; */
-  /* u32 adj_index; */
-  /* mcast_group_t * g; */
-  /* mcast_group_member_t * member; */
-  /* unformat_input_t _line_input, * line_input = &_line_input; */
-  /* ip4_address_t dst_addr, zero; */
-  /* ip4_main_t * im = &ip4_main; */
-  /* ip_lookup_main_t * lm = &im->lookup_main; */
-
-  /* /\* Get a line of input. *\/ */
-  /* if (! unformat_user (input, unformat_line_input, line_input)) */
-  /*   return 0; */
-
-  /* pool_get (mcm->groups, g); */
-  /* memset (g, 0, sizeof (*g)); */
-
-  /* while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) */
-  /*   { */
-  /*     vnet_hw_interface_t *hw; */
-  /*     u32 next, sw_if_index; */
-
-  /*     if (unformat (line_input, "%U", unformat_vnet_sw_interface,  */
-  /*                   mtm->vnet_main, &sw_if_index))  */
-  /*       { */
-  /*         vec_add2 (g->members, member, 1); */
-  /*         member->tx_sw_if_index = sw_if_index; */
-          
-  /*         hw = vnet_get_sup_hw_interface (mtm->vnet_main,  */
-  /*                                         sw_if_index); */
-          
-  /*         next = vlib_node_add_next (mtm->vlib_main,  */
-  /*                                    mcast_prep_node.index, */
-  /*                                    hw->output_node_index); */
-          
-  /*         /\* Required to be the same next index... *\/ */
-  /*         vlib_node_add_next_with_slot (mtm->vlib_main, */
-  /*                                       mcast_recycle_node.index, */
-  /*                                       hw->output_node_index, next); */
-  /*         member->prep_and_recycle_node_next_index = next; */
-  /*       } */
-  /*     else */
-  /*       { */
-  /*         return unformat_parse_error (line_input); */
-  /*       } */
-  /*   } */
-
-  /* if (vec_len (g->members) == 0) */
-  /*   { */
-  /*     pool_put (mcm->groups, g); */
-  /*     vlib_cli_output (vm, "no group members specified"); */
-  /*     return 0; */
-  /*   } */
-
-
-  /* adj.lookup_next_index = IP_LOOKUP_NEXT_REWRITE; */
-  /* adj.mcast_group_index = g - mcm->groups; */
-  /* rewrite_data = format (0, "abcdefg"); */
-
-  /* vnet_rewrite_for_tunnel */
-  /*   (mtm->vnet_main, */
-  /*    (u32)~0, /\* tx_sw_if_index, we dont know yet *\/ */
-  /*    ip4_rewrite_node.index, */
-  /*    mcast_prep_node.index, */
-  /*    &adj.rewrite_header, */
-  /*    rewrite_data, vec_len(rewrite_data)); */
-
-  /* ip_add_adjacency (lm, &adj, 1 /\* one adj *\/, */
-  /*                   &adj_index); */
-  
-  /* dst_addr.as_u32 = clib_host_to_net_u32 (0x0a000002); */
-  /* zero.as_u32 = 0; */
-
-  /* ip4_add_del_route_next_hop (im, */
-  /*                             IP4_ROUTE_FLAG_ADD, */
-  /*                             &dst_addr, */
-  /*                             24 /\* mask width *\/, */
-  /*                             &zero /\* no next hop *\/, */
-                          
-  /*                             0, // next hop sw if index */
-  /*                             1, // weight */
-  /*                             adj_index, */
-  /*                             0 /\* explicit fib 0 *\/); */
-
-  return 0;
-}
-
-static VLIB_CLI_COMMAND (mcast_test_command) = {
-  .path = "test mc",
-  .short_help = "test mc",
-  .function = mcast_test_command_fn,
-};
-
-clib_error_t *mcast_test_init (vlib_main_t *vm)
-{
-  mcast_test_main_t * mtm = &mcast_test_main;
-    
-  mtm->vlib_main = vm;
-  mtm->vnet_main = vnet_get_main();
-  mtm->mcast_main = &mcast_main;
-
-  return 0;
-}
-
-VLIB_INIT_FUNCTION (mcast_test_init);