1 #include <sys/socket.h>
4 #include <sys/utsname.h>
12 static void add_default_entries(flxServer *s) {
14 struct utsname utsname;
20 /* Fill in HINFO rr */
22 hinfo = g_strdup_printf("%s%c%s%n", g_strup(utsname.machine), 0, g_strup(utsname.sysname), &length);
24 flx_server_add_full(s, 0, 0, AF_UNSPEC, TRUE,
25 s->hostname, FLX_DNS_CLASS_IN, FLX_DNS_TYPE_HINFO, hinfo, length+1, FLX_DEFAULT_TTL);
29 /* Add localhost entries */
30 flx_address_parse("127.0.0.1", AF_INET, &a);
31 flx_server_add_address(s, 0, 0, AF_UNSPEC, TRUE, "localhost", &a);
33 flx_address_parse("::1", AF_INET6, &a);
34 flx_server_add_address(s, 0, 0, AF_UNSPEC, TRUE, "ip6-localhost", &a);
37 flxServer *flx_server_new(GMainContext *c) {
41 s = g_new(flxServer, 1);
43 s->fd_ipv4 = flx_open_socket_ipv4();
44 s->fd_ipv6 = flx_open_socket_ipv6();
46 if (s->fd_ipv6 < 0 && s->fd_ipv4 < 0) {
47 g_critical("Failed to create sockets.\n");
53 g_message("Failed to create IPv4 socket, proceeding in IPv6 only mode");
54 else if (s->fd_ipv6 < 0)
55 g_message("Failed to create IPv6 socket, proceeding in IPv4 only mode");
58 g_main_context_ref(s->context = c);
60 s->context = g_main_context_default();
63 s->rrset_by_id = g_hash_table_new(g_int_hash, g_int_equal);
64 s->rrset_by_name = g_hash_table_new((GHashFunc) flx_key_hash, (GEqualFunc) flx_key_equal);
66 FLX_LLIST_HEAD_INIT(flxEntry, s->entries);
68 s->monitor = flx_interface_monitor_new(s);
69 s->time_event_queue = flx_time_event_queue_new(s->context);
72 hn = flx_get_host_name();
73 if ((e = strchr(hn, '.')))
76 s->hostname = g_strdup_printf("%s.local.", hn);
79 add_default_entries(s);
84 void flx_server_free(flxServer* s) {
87 flx_interface_monitor_free(s->monitor);
89 flx_server_remove(s, 0);
91 g_hash_table_destroy(s->rrset_by_id);
92 g_hash_table_destroy(s->rrset_by_name);
94 flx_time_event_queue_free(s->time_event_queue);
95 g_main_context_unref(s->context);
106 gint flx_server_get_next_id(flxServer *s) {
109 return s->current_id++;
124 e = g_new(flxEntry, 1);
125 e->record = flx_record_ref(r);
127 e->interface = interface;
128 e->protocol = protocol;
131 FLX_LLIST_PREPEND(flxEntry, entry, s->entries, e);
133 /* Insert into hash table indexed by id */
134 t = g_hash_table_lookup(s->rrset_by_id, &e->id);
135 FLX_LLIST_PREPEND(flxEntry, by_id, t, e);
136 g_hash_table_replace(s->rrset_by_id, &e->id, t);
138 /* Insert into hash table indexed by name */
139 t = g_hash_table_lookup(s->rrset_by_name, e->record->key);
140 FLX_LLIST_PREPEND(flxEntry, by_name, t, e);
141 g_hash_table_replace(s->rrset_by_name, e->record->key, t);
144 void flx_server_add_full(
162 r = flx_record_new_full(name ? name : s->hostname, class, type, data, size, ttl);
163 flx_server_add(s, id, interface, protocol, unique, r);
167 const flxRecord *flx_server_iterate(flxServer *s, gint id, void **state) {
168 flxEntry **e = (flxEntry**) state;
173 *e = id > 0 ? (*e)->by_id_next : (*e)->entry_next;
175 *e = id > 0 ? g_hash_table_lookup(s->rrset_by_id, &id) : s->entries;
180 return flx_record_ref((*e)->record);
183 static void free_entry(flxServer*s, flxEntry *e) {
188 /* Remove from linked list */
189 FLX_LLIST_REMOVE(flxEntry, entry, s->entries, e);
191 /* Remove from hash table indexed by id */
192 t = g_hash_table_lookup(s->rrset_by_id, &e->id);
193 FLX_LLIST_REMOVE(flxEntry, by_id, t, e);
195 g_hash_table_replace(s->rrset_by_id, &t->id, t);
197 g_hash_table_remove(s->rrset_by_id, &e->id);
199 /* Remove from hash table indexed by name */
200 t = g_hash_table_lookup(s->rrset_by_name, e->record->key);
201 FLX_LLIST_REMOVE(flxEntry, by_name, t, e);
203 g_hash_table_replace(s->rrset_by_name, t->record->key, t);
205 g_hash_table_remove(s->rrset_by_name, e->record->key);
207 flx_record_unref(e->record);
211 void flx_server_remove(flxServer *s, gint id) {
216 free_entry(s, s->entries);
220 while ((e = g_hash_table_lookup(s->rrset_by_id, &id)))
225 void flx_server_dump(flxServer *s, FILE *f) {
230 for (e = s->entries; e; e = e->entry_next) {
233 t = flx_record_to_string(e->record);
234 fprintf(f, "%s\n", t);
239 void flx_server_add_address(
252 n = name ? flx_normalize_name(name) : s->hostname;
254 if (a->family == AF_INET) {
257 flx_server_add_full(s, id, interface, protocol, unique, n, FLX_DNS_CLASS_IN, FLX_DNS_TYPE_A, &a->ipv4, sizeof(a->ipv4), FLX_DEFAULT_TTL);
259 r = flx_reverse_lookup_name_ipv4(&a->ipv4);
261 flx_server_add_full(s, id, interface, protocol, unique, r, FLX_DNS_CLASS_IN, FLX_DNS_TYPE_PTR, n, strlen(n)+1, FLX_DEFAULT_TTL);
267 flx_server_add_full(s, id, interface, protocol, unique, n, FLX_DNS_CLASS_IN, FLX_DNS_TYPE_AAAA, &a->ipv6, sizeof(a->ipv6), FLX_DEFAULT_TTL);
269 r = flx_reverse_lookup_name_ipv6_arpa(&a->ipv6);
271 flx_server_add_full(s, id, interface, protocol, unique, r, FLX_DNS_CLASS_IN, FLX_DNS_TYPE_PTR, n, strlen(n)+1, FLX_DEFAULT_TTL);
274 r = flx_reverse_lookup_name_ipv6_int(&a->ipv6);
276 flx_server_add_full(s, id, interface, protocol, unique, r, FLX_DNS_CLASS_IN, FLX_DNS_TYPE_PTR, n, strlen(n)+1, FLX_DEFAULT_TTL);
283 void flx_server_add_text(
295 flx_server_add_full(s, id, interface, protocol, unique, name, FLX_DNS_CLASS_IN, FLX_DNS_TYPE_TXT, text, strlen(text), FLX_DEFAULT_TTL);
298 void flx_server_send_query(flxServer *s, gint interface, guchar protocol, flxKey *k) {
302 if (interface <= 0) {
305 for (i = flx_interface_monitor_get_first(s->monitor); i; i = i->interface_next)
306 flx_interface_send_query(i, protocol, k);
311 if (!(i = flx_interface_monitor_get_interface(s->monitor, interface)))
314 flx_interface_send_query(i, protocol, k);