int hostapd_reload_config(struct hostapd_iface *iface)
{
struct hostapd_data *hapd = iface->bss[0];
struct hostapd_config *newconf, *oldconf;
size_t j;
if (iface->interfaces == NULL ||
iface->interfaces->config_read_cb == NULL)
return -1;
newconf = iface->interfaces->config_read_cb(iface->config_fname);
if (newconf == NULL)
return -1;
/*
* Deauthenticate all stations since the new configuration may not
* allow them to use the BSS anymore.
*/
for (j = 0; j < iface->num_bss; j++) {
hostapd_flush_old_stations(iface->bss[j],
WLAN_REASON_PREV_AUTH_NOT_VALID);
hostapd_broadcast_wep_clear(iface->bss[j]);
#ifndef CONFIG_NO_RADIUS
/* TODO: update dynamic data based on changed configuration
* items (e.g., open/close sockets, etc.) */
radius_client_flush(iface->bss[j]->radius, 0);
#endif /* CONFIG_NO_RADIUS */
}
oldconf = hapd->iconf;
iface->conf = newconf;
hostapd_select_hw_mode(iface);
iface->freq = hostapd_hw_get_freq(hapd, newconf->channel);
if (hostapd_set_freq(hapd, newconf->hw_mode, iface->freq,
newconf->channel,
newconf->ieee80211n,
newconf->secondary_channel)) {
wpa_printf(MSG_ERROR, "Could not set channel for "
"kernel driver");
}
if (iface->current_mode)
hostapd_prepare_rates(iface, iface->current_mode);
for (j = 0; j < iface->num_bss; j++) {
hapd = iface->bss[j];
hapd->iconf = newconf;
hapd->conf = &newconf->bss[j];
hostapd_reload_bss(hapd);
}
hostapd_config_free(oldconf);
return 0;
}
/**
* select_hw_mode2 - Select the hardware mode (part 2)
* @iface: Pointer to interface data.
* @status: Status of auto chanel selection.
*
* Setup the rates and passive scanning based on the configuration.
*/
static void select_hw_mode2(struct hostapd_iface *iface, int status)
{
#if 0
int ret = status;
if (ret)
goto fail;
if (iface->current_mode == NULL) {
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured channel");
ret = -1;
goto fail;
}
if (hostapd_prepare_rates(iface->bss[0], iface->current_mode)) {
printf("Failed to prepare rates table.\n");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Failed to prepare rates table.");
ret = -1;
goto fail;
}
ret = hostapd_passive_scan(iface->bss[0], 0,
iface->conf->passive_scan_mode,
iface->conf->passive_scan_interval,
iface->conf->passive_scan_listen,
NULL, NULL);
if (ret) {
printf("Could not set passive scanning: %s\n", strerror(ret));
ret = 0;
}
fail:
select_hw_mode_finalize(iface, ret);
#endif
printf("%s, null function, iface->bss[0] may be not init.\n", __func__) ;
}
/**
* hostapd_select_hw_mode - Select the hardware mode
* @iface: Pointer to interface data.
* Returns: 0 on success, -1 on failure
*
* Sets up the hardware mode, channel, rates, and passive scanning
* based on the configuration.
*/
int hostapd_select_hw_mode(struct hostapd_iface *iface)
{
int i, j, ok, ret;
if (iface->num_hw_features < 1)
return -1;
iface->current_mode = NULL;
for (i = 0; i < iface->num_hw_features; i++) {
struct hostapd_hw_modes *mode = &iface->hw_features[i];
if (mode->mode == (int) iface->conf->hw_mode) {
iface->current_mode = mode;
break;
}
}
if (iface->current_mode == NULL) {
wpa_printf(MSG_ERROR, "Hardware does not support configured "
"mode");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured mode "
"(%d)", (int) iface->conf->hw_mode);
return -1;
}
ok = 0;
for (j = 0; j < iface->current_mode->num_channels; j++) {
struct hostapd_channel_data *chan =
&iface->current_mode->channels[j];
if (!(chan->flag & HOSTAPD_CHAN_DISABLED) &&
(chan->chan == iface->conf->channel)) {
ok = 1;
break;
}
}
if (ok == 0 && iface->conf->channel != 0) {
hostapd_logger(iface->bss[0], NULL,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Configured channel (%d) not found from the "
"channel list of current mode (%d) %s",
iface->conf->channel,
iface->current_mode->mode,
hostapd_hw_mode_txt(iface->current_mode->mode));
iface->current_mode = NULL;
}
if (iface->current_mode == NULL) {
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured channel");
return -1;
}
if (hostapd_prepare_rates(iface->bss[0], iface->current_mode)) {
wpa_printf(MSG_ERROR, "Failed to prepare rates table.");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Failed to prepare rates table.");
return -1;
}
ret = hostapd_passive_scan(iface->bss[0], 0,
iface->conf->passive_scan_mode,
iface->conf->passive_scan_interval,
iface->conf->passive_scan_listen,
NULL, NULL);
if (ret) {
if (ret == -1) {
wpa_printf(MSG_DEBUG, "Passive scanning not "
"supported");
} else {
wpa_printf(MSG_ERROR, "Could not set passive "
"scanning: %s", strerror(ret));
}
ret = 0;
}
return ret;
}
/**
* hostapd_select_hw_mode - Select the hardware mode
* @iface: Pointer to interface data.
* Returns: 0 on success, -1 on failure
*
* Sets up the hardware mode, channel, rates, and passive scanning
* based on the configuration.
*/
int hostapd_select_hw_mode(struct hostapd_iface *iface)
{
int i, j, ok;
if (iface->num_hw_features < 1)
return -1;
iface->current_mode = NULL;
for (i = 0; i < iface->num_hw_features; i++) {
struct hostapd_hw_modes *mode = &iface->hw_features[i];
if (mode->mode == iface->conf->hw_mode) {
iface->current_mode = mode;
break;
}
}
if (iface->current_mode == NULL) {
wpa_printf(MSG_ERROR, "Hardware does not support configured "
"mode");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured mode "
"(%d)", (int) iface->conf->hw_mode);
return -1;
}
ok = 0;
for (j = 0; j < iface->current_mode->num_channels; j++) {
struct hostapd_channel_data *chan =
&iface->current_mode->channels[j];
if (!(chan->flag & HOSTAPD_CHAN_DISABLED) &&
(chan->chan == iface->conf->channel)) {
ok = 1;
break;
}
}
if (iface->conf->channel == 0) {
/* TODO: could request a scan of neighboring BSSes and select
* the channel automatically */
wpa_printf(MSG_ERROR, "Channel not configured "
"(hw_mode/channel in hostapd.conf)");
return -1;
}
if (ok == 0 && iface->conf->channel != 0) {
hostapd_logger(iface->bss[0], NULL,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Configured channel (%d) not found from the "
"channel list of current mode (%d) %s",
iface->conf->channel,
iface->current_mode->mode,
hostapd_hw_mode_txt(iface->current_mode->mode));
iface->current_mode = NULL;
}
if (iface->current_mode == NULL) {
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured channel");
return -1;
}
if (hostapd_prepare_rates(iface->bss[0], iface->current_mode)) {
wpa_printf(MSG_ERROR, "Failed to prepare rates table.");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Failed to prepare rates table.");
return -1;
}
return 0;
}
