1 /* dtls -- a very basic DTLS implementation 2 * 3 * Copyright (C) 2011--2014 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 #ifndef _DTLS_SESSION_H_ 27 #define _DTLS_SESSION_H_ 28 29 #include <string.h> 30 31 #include "tinydtls.h" 32 #include "global.h" 33 34 #ifdef WITH_CONTIKI 35 #include "ip/uip.h" 36 typedef struct { 37 unsigned char size; 38 uip_ipaddr_t addr; 39 unsigned short port; 40 int ifindex; 41 } session_t; 42 43 #else /* WITH_CONTIKI */ 44 45 #include <sys/socket.h> 46 #include <netinet/in.h> 47 #include <arpa/inet.h> 48 49 typedef struct { 50 socklen_t size; /**< size of addr */ 51 union { 52 struct sockaddr sa; 53 struct sockaddr_storage st; 54 struct sockaddr_in sin; 55 struct sockaddr_in6 sin6; 56 } addr; 57 uint8_t ifindex; 58 } session_t; 59 #endif /* WITH_CONTIKI */ 60 61 /** 62 * Resets the given session_t object @p sess to its default 63 * values. In particular, the member rlen must be initialized to the 64 * available size for storing addresses. 65 * 66 * @param sess The session_t object to initialize. 67 */ 68 void dtls_session_init(session_t *sess); 69 70 /** 71 * Compares the given session objects. This function returns @c 0 72 * when @p a and @p b differ, @c 1 otherwise. 73 */ 74 int dtls_session_equals(const session_t *a, const session_t *b); 75 76 #endif /* _DTLS_SESSION_H_ */ 77
