mbed port of tinydtls
Diff: state.h
- Revision:
- 0:04990d454f45
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/state.h Thu Oct 10 21:38:07 2013 +0000 @@ -0,0 +1,60 @@ +/* dtls -- a very basic DTLS implementation + * + * Copyright (C) 2011--2013 Olaf Bergmann <bergmann@tzi.org> + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/** + * @file state.h + * @brief state information for DTLS FSM + */ + +#ifndef _STATE_H_ +#define _STATE_H_ + +#include "config.h" +#include "global.h" +#include "hmac.h" + +typedef enum { + DTLS_STATE_INIT = 0, DTLS_STATE_SERVERHELLO, DTLS_STATE_KEYEXCHANGE, + DTLS_STATE_WAIT_FINISHED, DTLS_STATE_FINISHED, + /* client states */ + DTLS_STATE_CLIENTHELLO, DTLS_STATE_WAIT_SERVERHELLODONE, + DTLS_STATE_WAIT_SERVERFINISHED, + + DTLS_STATE_CONNECTED, + DTLS_STATE_CLOSING, + DTLS_STATE_CLOSED, +} dtls_state_t; + +typedef struct { + uint24 mseq; /**< handshake message sequence number counter */ + + /** pending config that is updated during handshake */ + /* FIXME: dtls_security_parameters_t pending_config; */ + + /* temporary storage for the final handshake hash */ + dtls_hash_ctx hs_hash; +} dtls_hs_state_t; + +#endif /* _STATE_H_ */