dtls-support.h

/* Support function needed for using tinyDTLS in a specific environment */

#ifndef DTLS_SUPPORT_H_
#define DTLS_SUPPORT_H_

#include "tinydtls.h"
#include "dtls.h"

/* Support functions needed by the tinyDTLS codebase */
dtls_context_t *dtls_context_acquire(void);
void dtls_context_release(dtls_context_t *context);
int dtls_fill_random(uint8_t *buffer, size_t len);
void dtls_set_retransmit_timer(dtls_context_t *context, unsigned int);
void dtls_support_init(void);

dtls_cipher_context_t *dtls_cipher_context_acquire(void);
void dtls_cipher_context_release(dtls_cipher_context_t *ctx);

/**
 * Resets the given session_t object @p sess to its default
 * values.  In particular, the member rlen must be initialized to the
 * available size for storing addresses.
 *
 * @param sess The session_t object to initialize.
 */
void dtls_session_init(session_t *sess);

/**
 * Compares the given session objects. This function returns @c 0
 * when @p a and @p b differ, @c 1 otherwise.
 */
int dtls_session_equals(const session_t *a, const session_t *b);

/**
 * Get the address information for this session as an opaque (void *)
 */
void *dtls_session_get_address(const session_t *a);

/**
 * Get the address information size for this session.
 */
int dtls_session_get_address_size(const session_t *a);

/**
 * print the session info
 */
void dtls_session_print(const session_t *a);

/**
 * log the session info
 */
void dtls_session_log(const session_t *a);

/**
 * Clock handling
 */
void dtls_ticks(dtls_tick_t *t);

#ifndef DTLS_TICKS_PER_SECOND
#error DTLS_TICKS_PER_SECOND is not defined
#endif /* DTLS_TICKS_PER_SECOND */

#endif /* DTLS_SUPPORT_H_ */