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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/*
* Copyright (c) 2017-2019 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.
*/
/**
* \file face.h
* \brief Face abstraction
*/
#ifndef HICN_FACE_H
#define HICN_FACE_H
#ifndef SPACES
#define SPACES(x) x
#endif
#ifndef SPACE
#define SPACE 1
#endif
#ifndef NULLTERM
#define NULLTERM 1
#endif
#include <hicn/policy.h>
#include <hicn/util/ip_address.h>
/* Netdevice type */
#include <net/if.h> // IFNAMSIZ
#define foreach_netdevice_type \
_(UNDEFINED) \
_(LOOPBACK) \
_(WIRED) \
_(WIFI) \
_(CELLULAR) \
_(VPN) \
_(N)
#define MAXSZ_NETDEVICE_TYPE_ 9
#define MAXSZ_NETDEVICE_TYPE MAXSZ_NETDEVICE_TYPE_ + NULLTERM
typedef enum {
#define _(x) NETDEVICE_TYPE_ ## x,
foreach_netdevice_type
#undef _
} netdevice_type_t;
extern const char * _netdevice_type_str[];
#define netdevice_type_str(x) _netdevice_type_str[x]
/* Netdevice */
/**
* \brief Netdevice type
*
* NOTE
* - This struct cannot be made opaque as it is currently part of face_t
* - We recommand using the API as to keep redundant attributes consistent
*/
typedef struct {
u32 index;
char name[IFNAMSIZ];
} netdevice_t;
#define NETDEVICE_EMPTY (netdevice_t) { \
.index = 0, \
.name = {0}, \
}
netdevice_t * netdevice_create_from_index(u32 index);
netdevice_t * netdevice_create_from_name(const char * name);
#define netdevice_initialize_from_index netdevice_set_index
#define netdevice_initialize_from_name netdevice_set_name
void netdevice_free(netdevice_t * netdevice);
int netdevice_get_index(const netdevice_t * netdevice, u32 * index);
int netdevice_set_index(netdevice_t * netdevice, u32 index);
int netdevice_get_name(const netdevice_t * netdevice, const char ** name);
int netdevice_set_name(netdevice_t * netdevice, const char * name);
int netdevice_update_index(netdevice_t * netdevice);
int netdevice_update_name(netdevice_t * netdevice);
int netdevice_cmp(const netdevice_t * nd1, const netdevice_t * nd2);
#define NETDEVICE_UNDEFINED_INDEX 0
/* Face state */
#define foreach_face_state \
_(UNDEFINED) \
_(DOWN) \
_(UP) \
_(N)
#define MAXSZ_FACE_STATE_ 9
#define MAXSZ_FACE_STATE MAXSZ_FACE_STATE_ + 1
typedef enum {
#define _(x) FACE_STATE_ ## x,
foreach_face_state
#undef _
} face_state_t;
extern const char * _face_state_str[];
#define face_state_str(x) _face_state_str[x]
/* Face type */
#define foreach_face_type \
_(UNDEFINED) \
_(HICN) \
_(HICN_LISTENER) \
_(TCP) \
_(TCP_LISTENER) \
_(UDP) \
_(UDP_LISTENER) \
_(N)
#define MAXSZ_FACE_TYPE_ 13
#define MAXSZ_FACE_TYPE MAXSZ_FACE_TYPE_ + 1
typedef enum {
#define _(x) FACE_TYPE_ ## x,
foreach_face_type
#undef _
} face_type_t;
typedef enum {
FACE_PROTOCOL_HICN,
FACE_PROTOCOL_UDP,
FACE_PROTOCOL_TCP,
FACE_PROTOCOL_UNKNOWN,
} face_protocol_t;
#define face_type_is_valid(face_type) \
(((face_type) >= FACE_TYPE_UNDEFINED) && (face_type < FACE_TYPE_N))
#define face_type_is_defined(face_type) \
(((face_type) > FACE_TYPE_UNDEFINED) && (face_type < FACE_TYPE_N))
extern const char * _face_type_str[];
#define face_type_str(x) _face_type_str[x]
#ifdef WITH_POLICY
#define MAXSZ_FACE_ MAXSZ_FACE_TYPE_ + 2 * MAXSZ_URL_ + 2 * MAXSZ_FACE_STATE_ + MAXSZ_POLICY_TAGS_ + 7
#else
#define MAXSZ_FACE_ MAXSZ_FACE_TYPE_ + 2 * MAXSZ_URL_ + 2 * MAXSZ_FACE_STATE_ + 4
#endif /* WITH_POLICY */
#define MAXSZ_FACE MAXSZ_FACE_ + 1
/* Face */
typedef u32 face_id_t;
typedef struct {
face_type_t type;
face_state_t admin_state;
face_state_t state;
#ifdef WITH_POLICY
uint32_t priority;
policy_tags_t tags; /**< \see policy_tag_t */
#endif /* WITH_POLICY */
/*
* Depending on the face type, some of the following fields will be unused
*/
netdevice_t netdevice;
int family; /* To access family independently of face type */
ip_address_t local_addr;
ip_address_t remote_addr;
u16 local_port;
u16 remote_port;
} face_t;
int face_initialize(face_t * face);
int face_initialize_udp(face_t * face, const char * interface_name,
const ip_address_t * local_addr, u16 local_port,
const ip_address_t * remote_addr, u16 remote_port,
int family);
int face_initialize_udp_sa(face_t * face,
const char * interface_name,
const struct sockaddr * local_addr, const struct sockaddr * remote_addr);
face_t * face_create();
face_t * face_create_udp(const char * interface_name,
const ip_address_t * local_addr, u16 local_port,
const ip_address_t * remote_addr, u16 remote_port, int family);
face_t * face_create_udp_sa(const char * interface_name,
const struct sockaddr * local_addr,
const struct sockaddr * remote_addr);
int face_finalize(face_t * face);
void face_free(face_t * face);
typedef int (*face_cmp_t)(const face_t * f1, const face_t * f2);
int face_cmp(const face_t * f1, const face_t * f2);
size_t
face_snprintf(char * s, size_t size, const face_t * face);
policy_tags_t face_get_tags(const face_t * face);
int face_set_tags(face_t * face, policy_tags_t tags);
face_protocol_t get_protocol(face_type_t face_type);
#endif /* HICN_FACE_H */
|
