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 * ethernet_pg.c: packet generator ethernet 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/ethernet/ethernet.h>
46 pg_edit_t src_address;
47 pg_edit_t dst_address;
48 } pg_ethernet_header_t;
51 pg_ethernet_header_init (pg_ethernet_header_t * e)
53 pg_edit_init (&e->type, ethernet_header_t, type);
54 pg_edit_init (&e->src_address, ethernet_header_t, src_address);
55 pg_edit_init (&e->dst_address, ethernet_header_t, dst_address);
63 } pg_ethernet_vlan_header_t;
66 pg_ethernet_vlan_header_init (pg_ethernet_vlan_header_t * v,
69 ASSERT (vlan_index < ARRAY_LEN (((ethernet_max_header_t *) 0)->vlan));
70 pg_edit_init (&v->type, ethernet_max_header_t, vlan[vlan_index].type);
72 pg_edit_init_bitfield (&v->id, ethernet_max_header_t,
73 vlan[vlan_index].priority_cfi_and_id,
75 pg_edit_init_bitfield (&v->cfi, ethernet_max_header_t,
76 vlan[vlan_index].priority_cfi_and_id,
78 pg_edit_init_bitfield (&v->priority, ethernet_max_header_t,
79 vlan[vlan_index].priority_cfi_and_id,
84 unformat_pg_ethernet_header (unformat_input_t * input, va_list * args)
86 pg_stream_t * s = va_arg (*args, pg_stream_t *);
87 pg_ethernet_header_t * e;
88 pg_ethernet_vlan_header_t * v;
89 pg_edit_t * ether_type_edit;
90 u32 n_vlan, error, group_index;
92 e = pg_create_edit_group (s, sizeof (e[0]), sizeof (ethernet_header_t),
94 pg_ethernet_header_init (e);
97 if (! unformat (input, "%U: %U -> %U",
99 unformat_ethernet_type_net_byte_order, &e->type,
101 unformat_ethernet_address, &e->src_address,
103 unformat_ethernet_address, &e->dst_address))
107 while (unformat (input, "vlan"))
109 v = pg_add_edits (s, sizeof (v[0]), sizeof (ethernet_vlan_header_t),
111 pg_ethernet_vlan_header_init (v, n_vlan);
113 if (! unformat_user (input, unformat_pg_edit,
114 unformat_pg_number, &v->id))
117 if (! unformat (input, "priority %U", unformat_pg_edit,
118 unformat_pg_number, &v->priority))
119 pg_edit_set_fixed (&v->priority, 0);
121 if (! unformat (input, "cfi %U", unformat_pg_edit,
122 unformat_pg_number, &v->cfi))
123 pg_edit_set_fixed (&v->cfi, 0);
125 /* Too many vlans given. */
132 /* Address of e may have changed due to vlan edits being added */
133 e = pg_get_edit_group (s, group_index);
134 v = (void *) (e + 1);
136 /* Correct types for vlan packets. */
137 ether_type_edit = &e->type;
142 ether_type_edit = &v[n_vlan - 1].type;
143 pg_edit_copy_type_and_values (ether_type_edit, &e->type);
144 pg_edit_set_fixed (&e->type, ETHERNET_TYPE_VLAN);
146 for (i = 0; i < n_vlan - 1; i++)
147 pg_edit_set_fixed (&v[i].type, ETHERNET_TYPE_VLAN);
151 ethernet_main_t * em = ðernet_main;
152 ethernet_type_info_t * ti = 0;
153 pg_node_t * pg_node = 0;
155 if (ether_type_edit->type == PG_EDIT_FIXED)
157 u16 t = *(u16 *) ether_type_edit->values[PG_EDIT_LO];
158 ti = ethernet_get_type_info (em, clib_net_to_host_u16 (t));
159 if (ti && ti->node_index != ~0)
160 pg_node = pg_get_node (ti->node_index);
163 if (pg_node && pg_node->unformat_edit
164 && unformat_user (input, pg_node->unformat_edit, s))
166 else if (! unformat_user (input, unformat_pg_payload, s))
174 pg_free_edit_group (s);