114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include <errno.h>
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#include <patty/hash.h>
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#include <patty/ax25.h>
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patty_ax25_route *patty_ax25_route_new(patty_ax25_if *iface,
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const char *callsign,
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uint8_t ssid) {
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patty_ax25_route *route;
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if ((route = malloc(sizeof(*route))) == NULL) {
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goto error_malloc_route;
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}
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memset(route, '\0', sizeof(*route));
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if (callsign) {
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if (patty_ax25_pton(callsign, ssid, &route->dest) < 0) {
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goto error_pton;
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}
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}
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route->iface = iface;
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return route;
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error_pton:
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free(route);
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error_malloc_route:
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return NULL;
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}
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patty_ax25_route *patty_ax25_route_new_default(patty_ax25_if *iface) {
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return patty_ax25_route_new(iface, NULL, 0);
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}
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int patty_ax25_route_add_hop(patty_ax25_route *route,
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const char *callsign,
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uint8_t ssid) {
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if (route->nhops == PATTY_AX25_MAX_HOPS) {
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errno = ENOMEM;
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goto error_max_hops;
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}
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return patty_ax25_pton(callsign, ssid, &route->hops[route->nhops++]);
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error_max_hops:
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return -1;
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}
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patty_ax25_route_table *patty_ax25_route_table_new() {
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return patty_dict_new();
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}
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void patty_ax25_route_table_destroy(patty_ax25_route_table *table) {
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patty_dict_destroy(table);
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}
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patty_ax25_route *patty_ax25_route_table_find(patty_ax25_route_table *table,
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patty_ax25_addr *dest) {
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uint32_t hash;
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patty_hash_init(&hash);
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patty_ax25_addr_hash(&hash, dest);
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patty_hash_end(&hash);
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return patty_dict_get_with_hash(table, hash);
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}
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int patty_ax25_route_table_add(patty_ax25_route_table *table,
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patty_ax25_route *route) {
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uint32_t hash;
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patty_hash_init(&hash);
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patty_ax25_addr_hash(&hash, &route->dest);
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patty_hash_end(&hash);
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if (patty_ax25_route_table_find(table, &route->dest) != NULL) {
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errno = EEXIST;
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goto error_exists;
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}
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if (patty_dict_set_with_hash(table,
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&route->dest,
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sizeof(route->dest),
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route,
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hash) == NULL) {
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goto error_dict_set_with_hash;
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}
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return 0;
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error_dict_set_with_hash:
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error_exists:
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return -1;
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}
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int patty_ax25_route_table_delete(patty_ax25_route_table *route,
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patty_ax25_addr *dest) {
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uint32_t hash;
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patty_hash_init(&hash);
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patty_ax25_addr_hash(&hash, dest);
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patty_hash_end(&hash);
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return patty_dict_delete_with_hash(route, hash);
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}
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