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/*
Copyright (c) 2013, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _GMRF_GMRF_H_
#define _GMRF_GMRF_H_
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <syslog.h>
typedef struct gmrf gmrf_t;
typedef struct gmrf_context gmrf_context_t;
typedef struct gmrf_iface gmrf_iface_t;
typedef struct gmrf_iface_state gmrf_iface_state_t;
#define GMRF_ADDR_LEN 8
typedef struct gmrf_addr {
uint8_t d[GMRF_ADDR_LEN];
} gmrf_addr_t;
static const gmrf_addr_t gmrf_addr_unspec = {};
typedef uint64_t gmrf_time_t;
static const gmrf_time_t gmrf_time_unspec = UINT64_MAX;
static inline bool gmrf_addr_equal(const gmrf_addr_t *addr1, const gmrf_addr_t *addr2) {
return (memcmp(addr1->d, addr2->d, GMRF_ADDR_LEN) == 0);
}
gmrf_time_t gmrf_now(gmrf_t *gmrf);
void gmrf_random_bytes(gmrf_t *gmrf, void *buffer, size_t len);
void gmrf_logf(gmrf_t *gmrf, int priority, const char *format, ...);
gmrf_addr_t gmrf_iface_get_addr(gmrf_t *gmrf, gmrf_iface_t *iface);
const char* gmrf_iface_get_name(gmrf_t *gmrf, gmrf_iface_t *iface);
size_t gmrf_iface_get_mtu(gmrf_t *gmrf, gmrf_iface_t *iface);
bool gmrf_iface_send(gmrf_t *gmrf, gmrf_iface_t *iface, const void *data, size_t len, const gmrf_addr_t *dest);
bool gmrf_iface_send_bc(gmrf_t *gmrf, gmrf_iface_t *iface, const void *data, size_t len);
typedef void (*gmrf_scheduled_func)(gmrf_context_t *ctx, void *arg);
void gmrf_schedule(gmrf_t *gmrf, gmrf_scheduled_func f, void *arg, unsigned delay);
/* debug and simulation functions */
void gmrf_debug_init(gmrf_t *gmrf, const uint8_t *node_id, size_t len);
void gmrf_debug_neigh(gmrf_t *gmrf, gmrf_iface_t *iface, const gmrf_addr_t *addr, float rxcost, float txcost);
void gmrf_debug_neigh_lost(gmrf_t *gmrf, gmrf_iface_t *iface, const gmrf_addr_t *addr);
void gmrf_debug_route(gmrf_t *gmrf, const uint8_t *node_id, size_t len, gmrf_iface_t *iface, const gmrf_addr_t *addr, int metric);
void gmrf_debug_route_lost(gmrf_t *gmrf, const uint8_t *node_id, size_t len);
/* implemented by protocol */
extern const char *gmrf_protocol_name;
extern const char *gmrf_protocol_version;
gmrf_context_t* gmrf_protocol_init(gmrf_t *gmrf);
gmrf_iface_state_t* gmrf_protocol_add_iface(gmrf_context_t *ctx, gmrf_iface_t *iface);
void gmrf_protocol_handle_packet(gmrf_context_t *ctx, gmrf_iface_state_t *iface, const gmrf_addr_t *source, const void *data, size_t len);
#endif /* _GMRF_GMRF_H_ */
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