2 * mpls_features.c: MPLS input and output features
4 * Copyright (c) 2016 Cisco and/or its affiliates.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #include <vnet/mpls/mpls.h>
21 mpls_terminate (vlib_main_t * vm,
22 vlib_node_runtime_t * node,
26 u32 * buffers = vlib_frame_vector_args (frame);
27 uword n_packets = frame->n_vectors;
29 vlib_error_drop_buffers (vm, node,
34 mpls_input_node.index,
40 VLIB_NODE_FN (mpls_punt_node) (vlib_main_t * vm,
41 vlib_node_runtime_t * node,
44 return (mpls_terminate(vm, node, frame, MPLS_ERROR_PUNT));
47 VLIB_REGISTER_NODE (mpls_punt_node) = {
49 .vector_size = sizeof (u32),
57 VLIB_NODE_FN (mpls_drop_node) (vlib_main_t * vm,
58 vlib_node_runtime_t * node,
61 return (mpls_terminate(vm, node, frame, MPLS_ERROR_DROP));
64 VLIB_REGISTER_NODE (mpls_drop_node) = {
66 .vector_size = sizeof (u32),
74 VLIB_NODE_FN (mpls_not_enabled_node) (vlib_main_t * vm,
75 vlib_node_runtime_t * node,
78 return (mpls_terminate(vm, node, frame, MPLS_ERROR_NOT_ENABLED));
81 VLIB_REGISTER_NODE (mpls_not_enabled_node) = {
82 .name = "mpls-not-enabled",
83 .vector_size = sizeof (u32),
91 VNET_FEATURE_ARC_INIT (mpls_input, static) =
93 .arc_name = "mpls-input",
94 .start_nodes = VNET_FEATURES ("mpls-input"),
95 .last_in_arc = "mpls-lookup",
96 .arc_index_ptr = &mpls_main.input_feature_arc_index,
99 VNET_FEATURE_INIT (mpls_not_enabled, static) = {
100 .arc_name = "mpls-input",
101 .node_name = "mpls-not-enabled",
102 .runs_before = VNET_FEATURES ("mpls-lookup"),
105 VNET_FEATURE_INIT (mpls_lookup, static) = {
106 .arc_name = "mpls-input",
107 .node_name = "mpls-lookup",
108 .runs_before = VNET_FEATURES (0), /* not before any other features */
111 VNET_FEATURE_ARC_INIT (mpls_output, static) =
113 .arc_name = "mpls-output",
114 .start_nodes = VNET_FEATURES ("mpls-output", "mpls-midchain"),
115 .last_in_arc = "interface-output",
116 .arc_index_ptr = &mpls_main.output_feature_arc_index,
119 /* Built-in ip4 tx feature path definition */
120 VNET_FEATURE_INIT (mpls_interface_output, static) = {
121 .arc_name = "mpls-output",
122 .node_name = "interface-output",
123 .runs_before = 0, /* not before any other features */
126 static clib_error_t *
127 mpls_sw_interface_add_del (vnet_main_t * vnm,
131 mpls_main_t * mm = &mpls_main;
133 vec_validate_init_empty (mm->mpls_enabled_by_sw_if_index, sw_if_index, 0);
134 vec_validate_init_empty (mm->fib_index_by_sw_if_index, sw_if_index, 0);
136 vnet_feature_enable_disable ("mpls-input", "mpls-not-enabled", sw_if_index,
139 return /* no error */ 0;
142 VNET_SW_INTERFACE_ADD_DEL_FUNCTION (mpls_sw_interface_add_del);