aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/ppp/ppp.h
blob: b94f096476a72a0a38f3abcf4b99d73d44d9a455 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
/*
 * Copyright (c) 2024 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.
 */
/*
 * ppp.h: types/functions for ppp.
 *
 * Copyright (c) 2008 Eliot Dresselhaus
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef included_ppp_h
#define included_ppp_h

#include <vnet/vnet.h>
#include <ppp/packet.h>

extern vnet_hw_interface_class_t ppp_hw_interface_class;

typedef enum
{
#define ppp_error(n,s) PPP_ERROR_##n,
#include <ppp/error.def>
#undef ppp_error
  PPP_N_ERROR,
} ppp_error_t;

typedef struct
{
  /* Name (a c string). */
  char *name;

  /* PPP protocol type in host byte order. */
  ppp_protocol_t protocol;

  /* Node which handles this type. */
  u32 node_index;

  /* Next index for this type. */
  u32 next_index;
} ppp_protocol_info_t;

typedef struct
{
  vlib_main_t *vlib_main;

  ppp_protocol_info_t *protocol_infos;

  /* Hash tables mapping name/protocol to protocol info index. */
  uword *protocol_info_by_name, *protocol_info_by_protocol;
} ppp_main_t;

always_inline ppp_protocol_info_t *
ppp_get_protocol_info (ppp_main_t * em, ppp_protocol_t protocol)
{
  uword *p = hash_get (em->protocol_info_by_protocol, protocol);
  return p ? vec_elt_at_index (em->protocol_infos, p[0]) : 0;
}

extern ppp_main_t ppp_main;

/* Register given node index to take input for given ppp type. */
void
ppp_register_input_type (vlib_main_t * vm,
			 ppp_protocol_t protocol, u32 node_index);

format_function_t format_ppp_protocol;
format_function_t format_ppp_header;
format_function_t format_ppp_header_with_length;

/* Parse ppp protocol as 0xXXXX or protocol name.
   In either host or network byte order. */
unformat_function_t unformat_ppp_protocol_host_byte_order;
unformat_function_t unformat_ppp_protocol_net_byte_order;

/* Parse ppp header. */
unformat_function_t unformat_ppp_header;
unformat_function_t unformat_pg_ppp_header;

__clib_export void ppp_register_input_protocol (vlib_main_t *vm,
						ppp_protocol_t protocol,
						u32 node_index);

#endif /* included_ppp_h */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */