2 * pg.c: packet generator for L2TPv3 header
4 * Copyright (c) 2013 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 <vlib/vlib.h>
19 #include <vnet/pg/pg.h>
20 #include <vnet/l2tp/l2tp.h>
30 pg_edit_t l2_sublayer;
31 } pg_l2tp_header_l2_sublayer_t;
34 pg_l2tp_header_init (pg_l2tp_header_t * e)
36 pg_edit_init (&e->session_id, l2tpv3_header_t, session_id);
37 pg_edit_init (&e->cookie, l2tpv3_header_t, cookie);
41 unformat_pg_l2tp_header (unformat_input_t * input, va_list * args)
43 pg_stream_t *s = va_arg (*args, pg_stream_t *);
45 u32 group_index, error;
46 vlib_main_t *vm = vlib_get_main ();
48 h = pg_create_edit_group (s, sizeof (h[0]),
49 sizeof (l2tpv3_header_t) - sizeof (u32),
51 pg_l2tp_header_init (h);
55 /* session id and cookie are required */
56 if (!unformat (input, "L2TP: session_id %U cookie %U",
57 unformat_pg_edit, unformat_pg_number, &h->session_id,
58 unformat_pg_edit, unformat_pg_number, &h->cookie))
63 /* "l2_sublayer <value>" is optional */
64 if (unformat (input, "l2_sublayer"))
66 pg_l2tp_header_l2_sublayer_t *h2;
68 h2 = pg_add_edits (s, sizeof (h2[0]), sizeof (u32), group_index);
69 pg_edit_init (&h2->l2_sublayer, l2tpv3_header_t, l2_specific_sublayer);
70 if (!unformat_user (input, unformat_pg_edit,
71 unformat_pg_number, &h2->l2_sublayer))
77 /* Parse an ethernet header if it is present */
79 pg_node_t *pg_node = 0;
80 vlib_node_t *eth_lookup_node;
82 eth_lookup_node = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
83 ASSERT (eth_lookup_node);
85 pg_node = pg_get_node (eth_lookup_node->index);
87 if (pg_node && pg_node->unformat_edit
88 && unformat_user (input, pg_node->unformat_edit, s))
96 pg_free_edit_group (s);
101 * fd.io coding-style-patch-verification: ON
104 * eval: (c-set-style "gnu")