1 /* dtls -- a very basic DTLS implementation
2 *
3 * Copyright (C) 2011--2013 Olaf Bergmann <bergmann@tzi.org>
4 *
5 * Permission is hereby granted, free of charge, to any person
6 * obtaining a copy of this software and associated documentation
7 * files (the "Software"), to deal in the Software without
8 * restriction, including without limitation the rights to use, copy,
9 * modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 */
25
26 #include "global.h"
27 #include "peer.h"
28 #include "debug.h"
29
30 #ifndef WITH_CONTIKI
peer_init()31 void peer_init()
32 {
33 }
34
35 static inline dtls_peer_t *
dtls_malloc_peer()36 dtls_malloc_peer() {
37 return (dtls_peer_t *)malloc(sizeof(dtls_peer_t));
38 }
39
40 void
dtls_free_peer(dtls_peer_t * peer)41 dtls_free_peer(dtls_peer_t *peer) {
42 dtls_handshake_free(peer->handshake_params);
43 dtls_security_free(peer->security_params[0]);
44 dtls_security_free(peer->security_params[1]);
45 free(peer);
46 }
47 #else /* WITH_CONTIKI */
48
49 #include "memb.h"
50 MEMB(peer_storage, dtls_peer_t, DTLS_PEER_MAX);
51
52 void
peer_init()53 peer_init() {
54 memb_init(&peer_storage);
55 }
56
57 static inline dtls_peer_t *
dtls_malloc_peer()58 dtls_malloc_peer() {
59 return memb_alloc(&peer_storage);
60 }
61
62 void
dtls_free_peer(dtls_peer_t * peer)63 dtls_free_peer(dtls_peer_t *peer) {
64 dtls_handshake_free(peer->handshake_params);
65 dtls_security_free(peer->security_params[0]);
66 dtls_security_free(peer->security_params[1]);
67 memb_free(&peer_storage, peer);
68 }
69 #endif /* WITH_CONTIKI */
70
71 dtls_peer_t *
dtls_new_peer(const session_t * session)72 dtls_new_peer(const session_t *session) {
73 dtls_peer_t *peer;
74
75 peer = dtls_malloc_peer();
76 if (peer) {
77 memset(peer, 0, sizeof(dtls_peer_t));
78 memcpy(&peer->session, session, sizeof(session_t));
79 peer->security_params[0] = dtls_security_new();
80
81 if (!peer->security_params[0]) {
82 dtls_free_peer(peer);
83 return NULL;
84 }
85
86 dtls_dsrv_log_addr(DTLS_LOG_DEBUG, "dtls_new_peer", session);
87 }
88
89 return peer;
90 }
91
