65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
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/* dtls -- a very basic DTLS implementation
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*
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* Copyright (C) 2011--2013 Olaf Bergmann <bergmann@tzi.org>
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/**
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* @file state.h
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* @brief state information for DTLS FSM
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*/
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#ifndef _DTLS_STATE_H_
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#define _DTLS_STATE_H_
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#include <sys/types.h>
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#include <stdint.h>
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#include "global.h"
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#include "hmac.h"
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typedef enum {
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DTLS_STATE_INIT = 0, DTLS_STATE_WAIT_CLIENTHELLO, DTLS_STATE_WAIT_CLIENTCERTIFICATE,
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DTLS_STATE_WAIT_CLIENTKEYEXCHANGE, DTLS_STATE_WAIT_CERTIFICATEVERIFY,
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DTLS_STATE_WAIT_CHANGECIPHERSPEC,
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DTLS_STATE_WAIT_FINISHED, DTLS_STATE_FINISHED,
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/* client states */
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DTLS_STATE_CLIENTHELLO, DTLS_STATE_WAIT_SERVERCERTIFICATE, DTLS_STATE_WAIT_SERVERKEYEXCHANGE,
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DTLS_STATE_WAIT_SERVERHELLODONE,
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DTLS_STATE_CONNECTED,
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DTLS_STATE_CLOSING,
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DTLS_STATE_CLOSED
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} dtls_state_t;
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typedef struct {
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uint16_t mseq_s; /**< send handshake message sequence number counter */
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uint16_t mseq_r; /**< received handshake message sequence number counter */
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/** pending config that is updated during handshake */
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/* FIXME: dtls_security_parameters_t pending_config; */
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/* temporary storage for the final handshake hash */
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dtls_hash_ctx hs_hash;
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} dtls_hs_state_t;
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#endif /* _DTLS_STATE_H_ */
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