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
|
/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2010 FIXME
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
* \brief SRTP resource
*/
#ifndef _ASTERISK_RES_SRTP_H
#define _ASTERISK_RES_SRTP_H
struct ast_srtp;
struct ast_srtp_policy;
struct ast_rtp_instance;
struct ast_srtp_cb {
int (*no_ctx)(struct ast_rtp_instance *rtp, unsigned long ssrc, void *data);
};
struct ast_srtp_res {
int (*create)(struct ast_srtp **srtp, struct ast_rtp_instance *rtp, struct ast_srtp_policy *policy);
void (*destroy)(struct ast_srtp *srtp);
int (*add_stream)(struct ast_srtp *srtp, struct ast_srtp_policy *policy);
int (*change_source)(struct ast_srtp *srtp, unsigned int from_ssrc, unsigned int to_ssrc);
void (*set_cb)(struct ast_srtp *srtp, const struct ast_srtp_cb *cb, void *data);
int (*unprotect)(struct ast_srtp *srtp, void *buf, int *size, int rtcp);
int (*protect)(struct ast_srtp *srtp, void **buf, int *size, int rtcp);
int (*get_random)(unsigned char *key, size_t len);
};
/* Crypto suites */
enum ast_srtp_suite {
AST_AES_CM_128_HMAC_SHA1_80 = 1,
AST_AES_CM_128_HMAC_SHA1_32 = 2,
AST_F8_128_HMAC_SHA1_80 = 3
};
struct ast_srtp_policy_res {
struct ast_srtp_policy *(*alloc)(void);
void (*destroy)(struct ast_srtp_policy *policy);
int (*set_suite)(struct ast_srtp_policy *policy, enum ast_srtp_suite suite);
int (*set_master_key)(struct ast_srtp_policy *policy, const unsigned char *key, size_t key_len, const unsigned char *salt, size_t salt_len);
void (*set_ssrc)(struct ast_srtp_policy *policy, unsigned long ssrc, int inbound);
};
#endif /* _ASTERISK_RES_SRTP_H */
|
