/* * hdlc_pg.c: packet generator gre 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 <gre/gre.h> typedef struct { pg_edit_t flags_and_version; pg_edit_t protocol; } pg_gre_header_t; static inline void pg_gre_header_init (pg_gre_header_t *e) { pg_edit_init (&e->flags_and_version, gre_header_t, flags_and_version); pg_edit_init (&e->protocol, gre_header_t, protocol); } uword unformat_pg_gre_header (unformat_input_t *input, va_list *args) { pg_stream_t *s = va_arg (*args, pg_stream_t *); pg_gre_header_t *h; u32 group_index, error; h = pg_create_edit_group (s, sizeof (h[0]), sizeof (gre_header_t), &group_index); pg_gre_header_init (h); pg_edit_set_fixed (&h->flags_and_version, 0); error = 1; if (!unformat (input, "%U", unformat_pg_edit, unformat_gre_protocol_net_byte_order, &h->protocol)) goto done; { gre_main_t *pm = &gre_main; gre_protocol_info_t *pi = 0; pg_node_t *pg_node = 0; if (h->protocol.type == PG_EDIT_FIXED) { u16 t = *(u16 *) h->protocol.values[PG_EDIT_LO]; pi = gre_get_protocol_info (pm, clib_net_to_host_u16 (t)); if (pi && pi->node_index != ~0) pg_node = pg_get_node (pi->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; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */