4 #define FLX_ANNOUNCEMENT_JITTER_MSEC 0
6 static void remove_announcement(flxServer *s, flxAnnouncement *a) {
10 flx_time_event_queue_remove(s->time_event_queue, a->time_event);
12 FLX_LLIST_REMOVE(flxAnnouncement, by_interface, a->interface->announcements, a);
13 FLX_LLIST_REMOVE(flxAnnouncement, by_entry, a->entry->announcements, a);
18 static void elapse_announce(flxTimeEvent *e, void *userdata);
20 static void send_packet(flxAnnouncement *a) {
24 /* g_message("%i -- %u", a->state, a->n_iteration); */
26 if (a->state == FLX_PROBING && a->n_iteration >= 1) {
27 flx_interface_post_probe(a->interface, a->entry->record, FALSE);
28 } else if (a->state == FLX_ANNOUNCING && a->n_iteration >= 1)
29 flx_interface_post_response(a->interface, NULL, a->entry->record, a->entry->flags & FLX_SERVER_ENTRY_UNIQUE, TRUE);
33 if (a->state == FLX_PROBING) {
35 if (a->n_iteration == 1)
36 flx_elapse_time(&tv, 0, 250);
38 flx_elapse_time(&tv, 250, 0);
41 if (a->n_iteration >= 4) {
43 g_message("Enough probes for record [%s]", t = flx_record_to_string(a->entry->record));
45 a->state = FLX_ANNOUNCING;
49 } else if (a->state == FLX_ANNOUNCING) {
51 flx_elapse_time(&tv, a->sec_delay*1000, FLX_ANNOUNCEMENT_JITTER_MSEC);
53 if (a->n_iteration < 10)
57 if (a->n_iteration >= 4) {
59 g_message("Enough announcements for record [%s]", t = flx_record_to_string(a->entry->record));
61 remove_announcement(a->server, a);
67 flx_time_event_queue_update(a->server->time_event_queue, a->time_event, &tv);
69 a->time_event = flx_time_event_queue_add(a->server->time_event_queue, &tv, elapse_announce, a);
72 static void elapse_announce(flxTimeEvent *e, void *userdata) {
75 send_packet(userdata);
78 static flxAnnouncement *get_announcement(flxServer *s, flxServerEntry *e, flxInterface *i) {
85 for (a = e->announcements; a; a = a->by_entry_next)
86 if (a->interface == i)
92 static void new_announcement(flxServer *s, flxInterface *i, flxServerEntry *e) {
101 /* g_message("NEW ANNOUNCEMENT: %s.%i [%s]", i->hardware->name, i->protocol, t = flx_record_to_string(e->record)); */
104 if (!flx_interface_match(i, e->interface, e->protocol) || !i->announcing || e->flags & FLX_SERVER_ENTRY_NOANNOUNCE)
107 /* We don't want duplicate announcements */
108 if (get_announcement(s, e, i))
111 g_message("New announcement on interface %s.%i for entry [%s]", i->hardware->name, i->protocol, t = flx_record_to_string(e->record));
114 a = g_new(flxAnnouncement, 1);
119 a->state = (e->flags & FLX_SERVER_ENTRY_UNIQUE) && !(e->flags & FLX_SERVER_ENTRY_NOPROBE) ? FLX_PROBING : FLX_ANNOUNCING;
122 a->time_event = NULL;
124 FLX_LLIST_PREPEND(flxAnnouncement, by_interface, i->announcements, a);
125 FLX_LLIST_PREPEND(flxAnnouncement, by_entry, e->announcements, a);
130 void flx_announce_interface(flxServer *s, flxInterface *i) {
139 /* g_message("ANNOUNCE INTERFACE"); */
141 for (e = s->entries; e; e = e->entry_next)
142 new_announcement(s, i, e);
145 static void announce_walk_callback(flxInterfaceMonitor *m, flxInterface *i, gpointer userdata) {
146 flxServerEntry *e = userdata;
152 new_announcement(m->server, i, e);
155 void flx_announce_entry(flxServer *s, flxServerEntry *e) {
159 /* g_message("ANNOUNCE ENTRY"); */
161 flx_interface_monitor_walk(s->monitor, e->interface, e->protocol, announce_walk_callback, e);
164 gboolean flx_entry_established(flxServer *s, flxServerEntry *e, flxInterface *i) {
171 if (!(e->flags & FLX_SERVER_ENTRY_UNIQUE) || (e->flags & FLX_SERVER_ENTRY_NOPROBE))
174 if ((a = get_announcement(s, e, i)))
175 if (a->state == FLX_PROBING)
182 static flxRecord *make_goodbye_record(flxRecord *r) {
188 g_message("Preparing goodbye for record [%s]", t = flx_record_to_string(r));
191 g = flx_record_copy(r);
192 g_assert(g->ref == 1);
199 static void send_goodbye_callback(flxInterfaceMonitor *m, flxInterface *i, gpointer userdata) {
200 flxServerEntry *e = userdata;
207 if (!flx_interface_match(i, e->interface, e->protocol))
210 if (e->flags & FLX_SERVER_ENTRY_NOANNOUNCE)
213 if (!flx_entry_established(m->server, e, i))
216 g = make_goodbye_record(e->record);
217 flx_interface_post_response(i, NULL, g, e->flags & FLX_SERVER_ENTRY_UNIQUE, TRUE);
221 void flx_goodbye_interface(flxServer *s, flxInterface *i, gboolean goodbye) {
225 g_message("goodbye interface: %s.%u", i->hardware->name, i->protocol);
227 if (goodbye && flx_interface_relevant(i)) {
230 for (e = s->entries; e; e = e->entry_next)
231 send_goodbye_callback(s->monitor, i, e);
234 while (i->announcements)
235 remove_announcement(s, i->announcements);
237 g_message("goodbye interface done: %s.%u", i->hardware->name, i->protocol);
241 void flx_goodbye_entry(flxServer *s, flxServerEntry *e, gboolean goodbye) {
245 g_message("goodbye entry: %p", e);
248 flx_interface_monitor_walk(s->monitor, 0, AF_UNSPEC, send_goodbye_callback, e);
250 while (e->announcements)
251 remove_announcement(s, e->announcements);
253 g_message("goodbye entry done: %p", e);
257 void flx_goodbye_all(flxServer *s, gboolean goodbye) {
262 g_message("goodbye all");
264 for (e = s->entries; e; e = e->entry_next)
265 flx_goodbye_entry(s, e, goodbye);
267 g_message("goodbye all done");