1 /* dtls -- a very basic DTLS implementation
3 * Copyright (C) 2011--2014 Olaf Bergmann <bergmann@tzi.org>
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:
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
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
26 #include "dtls_config.h"
34 #warning "assertions are disabled"
40 #define _dtls_address_equals_impl(A,B) \
41 ((A)->size == (B)->size \
42 && (A)->port == (B)->port \
43 && uip_ipaddr_cmp(&((A)->addr),&((B)->addr)) \
44 && (A)->ifindex == (B)->ifindex)
46 #else /* WITH_CONTIKI */
49 _dtls_address_equals_impl(const session_t *a,
51 if ((a == b) && (a != NULL))
53 if (a->ifindex != b->ifindex ||
54 a->size != b->size || a->addr.sa.sa_family != b->addr.sa.sa_family)
57 /* need to compare only relevant parts of sockaddr_in6 */
58 switch (a->addr.sa.sa_family) {
61 a->addr.sin.sin_port == b->addr.sin.sin_port &&
62 memcmp(&a->addr.sin.sin_addr, &b->addr.sin.sin_addr,
63 sizeof(struct in_addr)) == 0;
65 return a->addr.sin6.sin6_port == b->addr.sin6.sin6_port &&
66 memcmp(&a->addr.sin6.sin6_addr, &b->addr.sin6.sin6_addr,
67 sizeof(struct in6_addr)) == 0;
68 default: /* fall through and signal error */
69 dtls_emerg("Could not compare dtls addresses!\n");
73 #endif /* WITH_CONTIKI */
76 dtls_session_init(session_t *sess) {
78 memset(sess, 0, sizeof(session_t));
79 sess->size = sizeof(sess->addr);
83 dtls_session_equals(const session_t *a, const session_t *b) {
85 return _dtls_address_equals_impl(a, b);