/* * pg.c: packet generator mpls interface * * Copyright (c) 2012 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 <vlib/vlib.h> #include <vnet/pg/pg.h> #include <vnet/mpls/mpls.h> typedef struct { pg_edit_t label; } pg_mpls_header_t; static inline void pg_mpls_header_init (pg_mpls_header_t * e) { pg_edit_init (&e->label, mpls_unicast_header_t, label_exp_s_ttl); } uword unformat_pg_mpls_header (unformat_input_t * input, va_list * args) { pg_stream_t * s = va_arg (*args, pg_stream_t *); pg_mpls_header_t * h; vlib_main_t * vm = vlib_get_main(); u32 group_index, error; h = pg_create_edit_group (s, sizeof (h[0]), sizeof (mpls_unicast_header_t), &group_index); pg_mpls_header_init (h); error = 1; if (! unformat (input, "%U", unformat_pg_edit, unformat_mpls_label_net_byte_order, &h->label)) goto done; { pg_node_t * pg_node = 0; vlib_node_t * ip_lookup_node; ip_lookup_node = vlib_get_node_by_name (vm, (u8 *)"ip4-input"); ASSERT (ip_lookup_node); pg_node = pg_get_node (ip_lookup_node->index); if (pg_node && pg_node->unformat_edit && unformat_user (input, pg_node->unformat_edit, s)) ; } error = 0; done: if (error) pg_free_edit_group (s); return error == 0; }