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Vector Packet Processing
pg.c
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1 /*
2  * pg.c: packet generator mpls interface
3  *
4  * Copyright (c) 2012 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:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
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.
16  */
17 
18 #include <vlib/vlib.h>
19 #include <vnet/pg/pg.h>
20 #include <vnet/gre/gre.h>
21 #include <vnet/mpls/mpls.h>
22 
23 typedef struct {
26 
27 static inline void
29 {
30  pg_edit_init (&e->label, mpls_unicast_header_t, label_exp_s_ttl);
31 }
32 
33 uword
34 unformat_pg_mpls_header (unformat_input_t * input, va_list * args)
35 {
36  pg_stream_t * s = va_arg (*args, pg_stream_t *);
39  u32 group_index, error;
40 
41  h = pg_create_edit_group (s, sizeof (h[0]), sizeof (mpls_unicast_header_t),
42  &group_index);
44 
45  error = 1;
46  if (! unformat (input, "%U",
49  goto done;
50 
51  {
52  pg_node_t * pg_node = 0;
53  vlib_node_t * ip_lookup_node;
54 
55  ip_lookup_node = vlib_get_node_by_name (vm, (u8 *)"ip4-input");
56  ASSERT (ip_lookup_node);
57 
58  pg_node = pg_get_node (ip_lookup_node->index);
59 
60  if (pg_node && pg_node->unformat_edit
61  && unformat_user (input, pg_node->unformat_edit, s))
62  ;
63  }
64 
65  error = 0;
66  done:
67  if (error)
69  return error == 0;
70 }
71 
Definition: edit.h:64
u32 index
Definition: node.h:237
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:983
uword unformat_pg_edit(unformat_input_t *input, va_list *args)
Definition: edit.c:106
uword unformat_pg_mpls_header(unformat_input_t *input, va_list *args)
Definition: pg.c:34
static pg_node_t * pg_get_node(uword node_index)
Definition: pg.h:350
#define pg_edit_init(e, type, field)
Definition: edit.h:116
static void * pg_create_edit_group(pg_stream_t *s, int n_edit_bytes, int n_packet_bytes, u32 *group_index)
Definition: pg.h:225
struct _unformat_input_t unformat_input_t
vlib_main_t * vm
Definition: buffer.c:283
vec_header_t h
Definition: buffer.c:282
unformat_function_t * unformat_edit
Definition: pg.h:307
vlib_node_t * vlib_get_node_by_name(vlib_main_t *vm, u8 *name)
Definition: node.c:45
#define ASSERT(truth)
unsigned int u32
Definition: types.h:88
static void pg_free_edit_group(pg_stream_t *s)
Definition: pg.h:278
Definition: pg.h:96
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
u64 uword
Definition: types.h:112
static void pg_mpls_header_init(pg_mpls_header_t *e)
Definition: pg.c:28
unsigned char u8
Definition: types.h:56
unformat_function_t unformat_mpls_label_net_byte_order
Definition: mpls.h:78
pg_edit_t label
Definition: pg.c:24
Definition: pg.h:304
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972