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1 /* | |
2 * rtp.h | |
3 * | |
4 * rtp interface for srtp reference implementation | |
5 * | |
6 * David A. McGrew | |
7 * Cisco Systems, Inc. | |
8 * | |
9 * data types: | |
10 * | |
11 * rtp_msg_t an rtp message (the data that goes on the wire) | |
12 * rtp_sender_t sender side socket and rtp info | |
13 * rtp_receiver_t receiver side socket and rtp info | |
14 * | |
15 */ | |
16 | |
17 /* | |
18 * | |
19 * Copyright (c) 2001-2006, Cisco Systems, Inc. | |
20 * All rights reserved. | |
21 * | |
22 * Redistribution and use in source and binary forms, with or without | |
23 * modification, are permitted provided that the following conditions | |
24 * are met: | |
25 * | |
26 * Redistributions of source code must retain the above copyright | |
27 * notice, this list of conditions and the following disclaimer. | |
28 * | |
29 * Redistributions in binary form must reproduce the above | |
30 * copyright notice, this list of conditions and the following | |
31 * disclaimer in the documentation and/or other materials provided | |
32 * with the distribution. | |
33 * | |
34 * Neither the name of the Cisco Systems, Inc. nor the names of its | |
35 * contributors may be used to endorse or promote products derived | |
36 * from this software without specific prior written permission. | |
37 * | |
38 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
39 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
40 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
41 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
42 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
43 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
44 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
45 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
49 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
50 * | |
51 */ | |
52 | |
53 | |
54 #ifndef RTP_H | |
55 #define RTP_H | |
56 | |
57 #ifdef HAVE_NETINET_IN_H | |
58 # include <netinet/in.h> | |
59 #elif defined HAVE_WINSOCK2_H | |
60 # include <winsock2.h> | |
61 #endif | |
62 | |
63 #include "srtp.h" | |
64 | |
65 typedef struct rtp_sender_ctx_t *rtp_sender_t; | |
66 | |
67 typedef struct rtp_receiver_ctx_t *rtp_receiver_t; | |
68 | |
69 int | |
70 rtp_sendto(rtp_sender_t sender, const void* msg, int len); | |
71 | |
72 int | |
73 rtp_recvfrom(rtp_receiver_t receiver, void *msg, int *len); | |
74 | |
75 int | |
76 rtp_receiver_init(rtp_receiver_t rcvr, int sock, | |
77 struct sockaddr_in addr, unsigned int ssrc); | |
78 | |
79 int | |
80 rtp_sender_init(rtp_sender_t sender, int sock, | |
81 struct sockaddr_in addr, unsigned int ssrc); | |
82 | |
83 /* | |
84 * srtp_sender_init(...) initializes an rtp_sender_t | |
85 */ | |
86 | |
87 int | |
88 srtp_sender_init(rtp_sender_t rtp_ctx, /* structure to be init'ed */ | |
89 struct sockaddr_in name, /* socket name */ | |
90 sec_serv_t security_services, /* sec. servs. to be used */ | |
91 unsigned char *input_key /* master key/salt in hex */ | |
92 ); | |
93 | |
94 int | |
95 srtp_receiver_init(rtp_receiver_t rtp_ctx, /* structure to be init'ed */ | |
96 struct sockaddr_in name, /* socket name */ | |
97 sec_serv_t security_services, /* sec. servs. to be used */ | |
98 unsigned char *input_key /* master key/salt in hex */ | |
99 ); | |
100 | |
101 | |
102 int | |
103 rtp_sender_init_srtp(rtp_sender_t sender, const srtp_policy_t *policy); | |
104 | |
105 int | |
106 rtp_sender_deinit_srtp(rtp_sender_t sender); | |
107 | |
108 int | |
109 rtp_receiver_init_srtp(rtp_receiver_t sender, const srtp_policy_t *policy); | |
110 | |
111 int | |
112 rtp_receiver_deinit_srtp(rtp_receiver_t sender); | |
113 | |
114 | |
115 rtp_sender_t | |
116 rtp_sender_alloc(void); | |
117 | |
118 void | |
119 rtp_sender_dealloc(rtp_sender_t rtp_ctx); | |
120 | |
121 rtp_receiver_t | |
122 rtp_receiver_alloc(void); | |
123 | |
124 void | |
125 rtp_receiver_dealloc(rtp_receiver_t rtp_ctx); | |
126 | |
127 | |
128 /* | |
129 * RTP_HEADER_LEN indicates the size of an RTP header | |
130 */ | |
131 #define RTP_HEADER_LEN 12 | |
132 | |
133 /* | |
134 * RTP_MAX_BUF_LEN defines the largest RTP packet in the rtp.c implementation | |
135 */ | |
136 #define RTP_MAX_BUF_LEN 16384 | |
137 | |
138 | |
139 #endif /* RTP_H */ | |
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