int ap_list_reconfig(struct hostapd_iface *iface,
struct hostapd_config *oldconf)
{
time_t now;
struct ap_info *ap;
if (iface->conf->ap_table_max_size == oldconf->ap_table_max_size &&
iface->conf->ap_table_expiration_time ==
oldconf->ap_table_expiration_time)
return 0;
time(&now);
while (iface->ap_list) {
ap = iface->ap_list->prev;
if (iface->num_ap <= iface->conf->ap_table_max_size &&
ap->last_beacon + iface->conf->ap_table_expiration_time >=
now)
break;
if (iface->conf->passive_scan_interval > 0)
ap_list_expired_ap(iface, iface->ap_list->prev);
ap_free_ap(iface, iface->ap_list->prev);
}
return 0;
}
static struct ap_info * ap_ap_add(struct hostapd_iface *iface, u8 *addr)
{
struct ap_info *ap;
ap = os_zalloc(sizeof(struct ap_info));
if (ap == NULL)
return NULL;
/* initialize AP info data */
os_memcpy(ap->addr, addr, ETH_ALEN);
ap_ap_list_add(iface, ap);
iface->num_ap++;
ap_ap_hash_add(iface, ap);
ap_ap_iter_list_add(iface, ap);
if (iface->num_ap > iface->conf->ap_table_max_size && ap != ap->prev) {
wpa_printf(MSG_DEBUG, "Removing the least recently used AP "
MACSTR " from AP table", MAC2STR(ap->prev->addr));
if (iface->conf->passive_scan_interval > 0)
ap_list_expired_ap(iface, ap->prev);
ap_free_ap(iface, ap->prev);
}
return ap;
}
static void ap_list_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_iface *iface = eloop_ctx;
struct os_reltime now;
struct ap_info *ap;
int set_beacon = 0;
eloop_register_timeout(10, 0, ap_list_timer, iface, NULL);
if (!iface->ap_list) {
return;
}
os_get_reltime(&now);
while (iface->ap_list) {
ap = iface->ap_list->prev;
if (!os_reltime_expired(&now, &ap->last_beacon, iface->conf->ap_table_expiration_time)) {
break;
}
ap_free_ap(iface, ap);
}
if (iface->olbc || iface->olbc_ht) {
int olbc = 0;
int olbc_ht = 0;
ap = iface->ap_list;
while (ap && (olbc == 0 || olbc_ht == 0)) {
if (ap_list_beacon_olbc(iface, ap)) {
olbc = 1;
}
if (!ap->ht_support) {
olbc_ht = 1;
}
ap = ap->next;
}
if (!olbc && iface->olbc) {
wpa_printf(MSG_DEBUG, "OLBC not detected anymore");
iface->olbc = 0;
set_beacon++;
}
#ifdef CONFIG_IEEE80211N
if (!olbc_ht && iface->olbc_ht) {
wpa_printf(MSG_DEBUG, "OLBC HT not detected anymore");
iface->olbc_ht = 0;
hostapd_ht_operation_update(iface);
set_beacon++;
}
#endif /* CONFIG_IEEE80211N */
}
if (set_beacon) {
ieee802_11_update_beacons(iface);
}
}
static void hostapd_free_aps(struct hostapd_iface *iface)
{
struct ap_info *ap, *prev;
ap = iface->ap_list;
while (ap) {
prev = ap;
ap = ap->next;
ap_free_ap(iface, prev);
}
iface->ap_list = NULL;
}
static void ap_list_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_iface *iface = eloop_ctx;
time_t now;
struct ap_info *ap;
eloop_register_timeout(10, 0, ap_list_timer, iface, NULL);
if (!iface->ap_list)
return;
time(&now);
/* FIX: it looks like jkm-Purina ended up in busy loop in this
* function. Apparently, something can still cause a loop in the AP
* list.. */
while (iface->ap_list) {
ap = iface->ap_list->prev;
if (ap->last_beacon + iface->conf->ap_table_expiration_time >=
now)
break;
if (iface->conf->passive_scan_interval > 0)
ap_list_expired_ap(iface, ap);
ap_free_ap(iface, ap);
}
if (iface->olbc) {
int olbc = 0;
ap = iface->ap_list;
while (ap) {
if (ap_list_beacon_olbc(iface, ap)) {
olbc = 1;
break;
}
ap = ap->next;
}
if (!olbc) {
struct hostapd_data *hapd = iface->bss[0];
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
"OLBC not detected anymore\n");
iface->olbc = 0;
ieee802_11_set_beacons(hapd->iface);
}
}
}
static void ap_list_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_iface *iface = eloop_ctx;
time_t now;
struct ap_info *ap;
int set_beacon = 0;
eloop_register_timeout(10, 0, ap_list_timer, iface, NULL);
if (!iface->ap_list)
return;
time(&now);
/* FIX: it looks like jkm-Purina ended up in busy loop in this
* function. Apparently, something can still cause a loop in the AP
* list.. */
while (iface->ap_list) {
ap = iface->ap_list->prev;
if (ap->last_beacon + iface->conf->ap_table_expiration_time >=
now)
break;
if (iface->conf->passive_scan_interval > 0)
ap_list_expired_ap(iface, ap);
ap_free_ap(iface, ap);
}
if (iface->olbc || iface->olbc_ht) {
int olbc = 0;
int olbc_ht = 0;
ap = iface->ap_list;
while (ap && (olbc == 0 || olbc_ht == 0)) {
if (ap_list_beacon_olbc(iface, ap))
olbc = 1;
#ifdef CONFIG_IEEE80211N
if (ap_list_beacon_olbc_ht(iface, ap))
olbc_ht = 1;
#endif /* CONFIG_IEEE80211N */
ap = ap->next;
}
if (!olbc && iface->olbc) {
wpa_printf(MSG_DEBUG, "OLBC not detected anymore");
iface->olbc = 0;
set_beacon++;
}
#ifdef CONFIG_IEEE80211N
if (!olbc_ht && iface->olbc_ht) {
wpa_printf(MSG_DEBUG, "OLBC HT not detected anymore");
iface->olbc_ht = 0;
hostapd_ht_operation_update(iface);
set_beacon++;
}
#endif /* CONFIG_IEEE80211N */
}
if (set_beacon)
ieee802_11_set_beacons(iface);
}