2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 * snap_pg.c: packet generator snap interface
18 * Copyright (c) 2008 Eliot Dresselhaus
20 * Permission is hereby granted, free of charge, to any person obtaining
21 * a copy of this software and associated documentation files (the
22 * "Software"), to deal in the Software without restriction, including
23 * without limitation the rights to use, copy, modify, merge, publish,
24 * distribute, sublicense, and/or sell copies of the Software, and to
25 * permit persons to whom the Software is furnished to do so, subject to
26 * the following conditions:
28 * The above copyright notice and this permission notice shall be
29 * included in all copies or substantial portions of the Software.
31 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
40 #include <vlib/vlib.h>
41 #include <vnet/pg/pg.h>
42 #include <vnet/snap/snap.h>
50 pg_snap_header_init (pg_snap_header_t * e)
52 pg_edit_init (&e->oui, snap_header_t, oui);
53 pg_edit_init (&e->protocol, snap_header_t, protocol);
57 unformat_pg_snap_header (unformat_input_t * input, va_list * args)
59 pg_stream_t * s = va_arg (*args, pg_stream_t *);
61 u32 group_index, error;
63 h = pg_create_edit_group (s, sizeof (h[0]), sizeof (snap_header_t),
65 pg_snap_header_init (h);
68 if (! unformat (input, "%U -> %U",
70 unformat_snap_protocol, &h->oui, &h->protocol))
74 snap_main_t * pm = &snap_main;
75 snap_protocol_info_t * pi = 0;
76 pg_node_t * pg_node = 0;
78 if (h->oui.type == PG_EDIT_FIXED
79 && h->protocol.type == PG_EDIT_FIXED)
81 u8 * o = h->oui.values[PG_EDIT_LO];
82 u8 * p = h->protocol.values[PG_EDIT_LO];
88 h.protocol = *(u16 *) p;
89 pi = snap_get_protocol_info (pm, &h);
90 if (pi && pi->node_index != ~0)
91 pg_node = pg_get_node (pi->node_index);
94 if (pg_node && pg_node->unformat_edit
95 && unformat_user (input, pg_node->unformat_edit, s))
98 else if (! unformat_user (input, unformat_pg_payload, s))
105 pg_free_edit_group (s);