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authorNeale Ranns <nranns@cisco.com>2016-11-22 17:07:28 +0000
committerDamjan Marion <dmarion.lists@gmail.com>2017-01-27 19:53:46 +0000
commit32e1c010b0c34fd0984f7fc45fae648a182025c5 (patch)
tree06a440bdc9dc039ad0dcf866acc9e10a6ea5e2e7 /src/vnet/mfib/mfib_itf.c
parent6f692d6e5a8ffc920a728372ef773199bc5466c0 (diff)
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>
Diffstat (limited to 'src/vnet/mfib/mfib_itf.c')
-rw-r--r--src/vnet/mfib/mfib_itf.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/src/vnet/mfib/mfib_itf.c b/src/vnet/mfib/mfib_itf.c
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+++ b/src/vnet/mfib/mfib_itf.c
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+/*
+ * 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/vnet.h>
+
+#include <vnet/mfib/mfib_itf.h>
+#include <vnet/mfib/mfib_signal.h>
+
+mfib_itf_t *mfib_itf_pool;
+
+index_t
+mfib_itf_create (u32 sw_if_index,
+ mfib_itf_flags_t mfi_flags)
+{
+ mfib_itf_t *mfib_itf;
+
+ pool_get_aligned(mfib_itf_pool, mfib_itf,
+ CLIB_CACHE_LINE_BYTES);
+
+ mfib_itf->mfi_sw_if_index = sw_if_index;
+ mfib_itf->mfi_flags = mfi_flags;
+ mfib_itf->mfi_si = INDEX_INVALID;
+
+ return (mfib_itf - mfib_itf_pool);
+}
+
+void
+mfib_itf_delete (mfib_itf_t *mfi)
+{
+ mfib_signal_remove_itf(mfi);
+ pool_put(mfib_itf_pool, mfi);
+}
+
+u8 *
+format_mfib_itf (u8 * s, va_list * args)
+{
+ mfib_itf_t *mfib_itf;
+ vnet_main_t *vnm;
+ index_t mfi;
+
+ mfi = va_arg (*args, index_t);
+
+ vnm = vnet_get_main();
+ mfib_itf = mfib_itf_get(mfi);
+
+ if (~0 != mfib_itf->mfi_sw_if_index)
+ {
+ return (format(s, " %U: %U",
+ format_vnet_sw_interface_name,
+ vnm,
+ vnet_get_sw_interface(vnm,
+ mfib_itf->mfi_sw_if_index),
+ format_mfib_itf_flags, mfib_itf->mfi_flags));
+ }
+ else
+ {
+ return (format(s, " local: %U",
+ format_mfib_itf_flags, mfib_itf->mfi_flags));
+ }
+ return (s);
+}
+
+static clib_error_t *
+show_mfib_itf_command (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ index_t mfii;
+
+ if (unformat (input, "%d", &mfii))
+ {
+ /*
+ * show one in detail
+ */
+ if (!pool_is_free_index(mfib_itf_pool, mfii))
+ {
+ vlib_cli_output (vm, "%d@%U",
+ mfii,
+ format_mfib_itf, mfii);
+ }
+ else
+ {
+ vlib_cli_output (vm, "itf %d invalid", mfii);
+ }
+ }
+ else
+ {
+ /*
+ * show all
+ */
+ vlib_cli_output (vm, "mFIB interfaces::");
+ pool_foreach_index(mfii, mfib_itf_pool,
+ ({
+ vlib_cli_output (vm, "%d@%U",
+ mfii,
+ format_mfib_itf, mfii);
+ }));
+ }
+
+ return (NULL);
+}
+
+VLIB_CLI_COMMAND (show_mfib_itf, static) = {
+ .path = "show mfib interface",
+ .function = show_mfib_itf_command,
+ .short_help = "show mfib interface",
+};