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#include "announce.h"
#include "util.h"
static void remove_announcement(flxServer *s, flxAnnouncement *a) {
g_assert(s);
g_assert(a);
flx_time_event_queue_remove(s->time_event_queue, a->time_event);
FLX_LLIST_REMOVE(flxAnnouncement, by_interface, a->interface->announcements, a);
FLX_LLIST_REMOVE(flxAnnouncement, by_entry, a->entry->announcements, a);
g_free(a);
}
static void elapse_announce(flxTimeEvent *e, void *userdata) {
flxAnnouncement *a = userdata;
GTimeVal tv;
gchar *t;
g_assert(e);
g_assert(a);
if (a->n_announced >= 3) {
g_message("Enough announcements for record [%s]", t = flx_record_to_string(a->entry->record));
g_free(t);
remove_announcement(a->server, a);
return;
}
flx_interface_post_response(a->interface, a->entry->record);
a->n_announced++;
g_message("Announcement #%i on interface %s.%i for entry [%s]", a->n_announced, a->interface->hardware->name, a->interface->protocol, t = flx_record_to_string(a->entry->record));
g_free(t);
flx_elapse_time(&tv, 1000, 100);
flx_time_event_queue_update(a->server->time_event_queue, a->time_event, &tv);
}
static void new_announcement(flxServer *s, flxInterface *i, flxServerEntry *e) {
flxAnnouncement *a;
GTimeVal tv;
gchar *t;
g_assert(s);
g_assert(i);
g_assert(e);
if (!flx_interface_match(i, e->interface, e->protocol) || !flx_interface_relevant(i))
return;
/* We don't want duplicates */
for (a = e->announcements; a; a = a->by_entry_next)
if (a->interface == i)
return;
g_message("New announcement on interface %s.%i for entry [%s]", i->hardware->name, i->protocol, t = flx_record_to_string(e->record));
g_free(t);
flx_interface_post_response(i, e->record);
a = g_new(flxAnnouncement, 1);
a->server = s;
a->interface = i;
a->entry = e;
a->n_announced = 1;
FLX_LLIST_PREPEND(flxAnnouncement, by_interface, i->announcements, a);
FLX_LLIST_PREPEND(flxAnnouncement, by_entry, e->announcements, a);
flx_elapse_time(&tv, 1000, 100);
a->time_event = flx_time_event_queue_add(s->time_event_queue, &tv, elapse_announce, a);
}
void flx_announce_interface(flxServer *s, flxInterface *i) {
flxServerEntry *e;
g_assert(s);
g_assert(i);
if (!flx_interface_relevant(i))
return;
for (e = s->entries; e; e = e->entry_next)
new_announcement(s, i, e);
}
void flx_announce_entry(flxServer *s, flxServerEntry *e) {
g_assert(s);
g_assert(e);
if (e->interface > 0) {
if (e->protocol != AF_UNSPEC) {
flxInterface *i;
if ((i = flx_interface_monitor_get_interface(s->monitor, e->interface, e->protocol)))
new_announcement(s, i, e);
} else {
flxHwInterface *hw;
if ((hw = flx_interface_monitor_get_hw_interface(s->monitor, e->interface))) {
flxInterface *i;
for (i = hw->interfaces; i; i = i->by_hardware_next)
new_announcement(s, i, e);
}
}
} else {
flxInterface *i;
for (i = s->monitor->interfaces; i; i = i->interface_next)
new_announcement(s, i, e);
}
}
static flxRecord *make_goodbye_record(flxRecord *r) {
gchar *t;
g_assert(r);
g_message("Preparing goodbye for record [%s]", t = flx_record_to_string(r));
g_free(t);
return flx_record_new(r->key, r->data, r->size, 0);
}
void flx_goodbye_interface(flxServer *s, flxInterface *i, gboolean goodbye) {
g_assert(s);
g_assert(i);
while (i->announcements)
remove_announcement(s, i->announcements);
if (goodbye && flx_interface_relevant(i)) {
flxServerEntry *e;
for (e = s->entries; e; e = e->entry_next)
if (flx_interface_match(i, e->interface, e->protocol)) {
flxRecord *g = make_goodbye_record(e->record);
flx_interface_post_response(i, g);
flx_record_unref(g);
}
}
}
void flx_goodbye_entry(flxServer *s, flxServerEntry *e, gboolean goodbye) {
g_assert(s);
g_assert(e);
while (e->announcements)
remove_announcement(s, e->announcements);
if (goodbye) {
flxRecord *g = make_goodbye_record(e->record);
flx_server_post_response(s, e->interface, e->protocol, g);
flx_record_unref(g);
}
}
void flx_goodbye_all(flxServer *s, gboolean goodbye) {
flxServerEntry *e;
g_assert(s);
for (e = s->entries; e; e = e->entry_next)
flx_goodbye_entry(s, e, goodbye);
}
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