1 /* dtls -- a very basic DTLS implementation
3 * Copyright (C) 2011--2013 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
28 * @brief state information for DTLS FSM
31 #ifndef _DTLS_STATE_H_
32 #define _DTLS_STATE_H_
34 #include <sys/types.h>
41 DTLS_STATE_INIT = 0, DTLS_STATE_WAIT_CLIENTHELLO, DTLS_STATE_WAIT_CLIENTCERTIFICATE,
42 DTLS_STATE_WAIT_CLIENTKEYEXCHANGE, DTLS_STATE_WAIT_CERTIFICATEVERIFY,
43 DTLS_STATE_WAIT_CHANGECIPHERSPEC,
44 DTLS_STATE_WAIT_FINISHED, DTLS_STATE_FINISHED,
46 DTLS_STATE_CLIENTHELLO, DTLS_STATE_WAIT_SERVERCERTIFICATE, DTLS_STATE_WAIT_SERVERKEYEXCHANGE,
47 DTLS_STATE_WAIT_SERVERHELLODONE,
55 uint16_t mseq_s; /**< send handshake message sequence number counter */
56 uint16_t mseq_r; /**< received handshake message sequence number counter */
58 /** pending config that is updated during handshake */
59 /* FIXME: dtls_security_parameters_t pending_config; */
61 /* temporary storage for the final handshake hash */
62 dtls_hash_ctx hs_hash;
64 #endif /* _DTLS_STATE_H_ */