/**
* reload_hw_mode_done - Callback for after the HW mode is setup
* @hapd_iface: Pointer to interface data.
* @status: Status of the HW mode setup.
*/
static void reload_hw_mode_done(struct hostapd_iface *hapd_iface, int status)
{
struct hostapd_data *hapd = hapd_iface->bss[0];
struct hostapd_config_change *change = hapd_iface->change;
struct hostapd_config *newconf = change->newconf;
hostapd_iface_cb cb;
int freq;
if (status) {
printf("Failed to select hw_mode.\n");
cb = hapd_iface->reload_iface_cb;
hapd_iface->reload_iface_cb = NULL;
cb(hapd_iface, -1);
return;
}
freq = hostapd_hw_get_freq(hapd, newconf->channel);
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
"Mode: %s Channel: %d Frequency: %d MHz\n",
hostapd_hw_mode_txt(newconf->hw_mode),
newconf->channel, freq);
if (hostapd_set_freq(hapd, newconf->hw_mode, freq)) {
printf("Could not set channel %d (%d MHz) for kernel "
"driver\n", newconf->channel, freq);
}
change->beacon_changed++;
reload_iface2(hapd_iface);
}
/**
* select_hw_mode1 - Select the hardware mode (part 1)
* @iface: Pointer to interface data.
* Returns: 0 on success; -1 on failure.
*
* Setup the hardware mode and channel based on the configuration.
* Schedules select_hw_mode2() to be called immediately or after automatic
* channel selection takes place.
*/
static int select_hw_mode1(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 == (int) iface->conf->hw_mode) {
iface->current_mode = mode;
break;
}
}
if (iface->current_mode == NULL) {
printf("Hardware does not support configured mode\n");
#if 0
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured mode "
"(%d)", (int) iface->conf->hw_mode);
#endif
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_W_SCAN) &&
(chan->chan == iface->conf->channel)) {
ok = 1;
break;
}
}
if (ok == 0 && iface->conf->channel != 0) {
#if 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));
#endif
iface->current_mode = NULL;
}
/*
* Calls select_hw_mode2() via a handler, so that the function is
* always executed from eloop.
*/
eloop_register_timeout(0, 0, select_hw_mode2_handler, iface, NULL);
return 0;
}
static void hostapd_notify_bad_chans(struct hostapd_iface *iface)
{
iface->current_mode = NULL;
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));
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured channel");
}
/**
* hostapd_select_hw_mode - Select the hardware mode
* @iface: Pointer to interface data.
* Returns: 0 on success, < 0 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) (hw_mode in hostapd.conf)",
(int) iface->conf->hw_mode);
return -2;
}
ok = 0;
for (j = 0; j < iface->current_mode->num_channels; j++) {
struct hostapd_channel_data *chan =
&iface->current_mode->channels[j];
if (chan->chan == iface->conf->channel) {
if (chan->flag & HOSTAPD_CHAN_DISABLED) {
wpa_printf(MSG_ERROR,
"channel [%i] (%i) is disabled for "
"use in AP mode, flags: 0x%x%s%s%s",
j, chan->chan, chan->flag,
chan->flag & HOSTAPD_CHAN_NO_IBSS ?
" NO-IBSS" : "",
chan->flag &
HOSTAPD_CHAN_PASSIVE_SCAN ?
" PASSIVE-SCAN" : "",
chan->flag & HOSTAPD_CHAN_RADAR ?
" RADAR" : "");
} else {
ok = 1;
break;
}
}
}
if (ok && iface->conf->secondary_channel) {
int sec_ok = 0;
int sec_chan = iface->conf->channel +
iface->conf->secondary_channel * 4;
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 == sec_chan)) {
sec_ok = 1;
break;
}
}
if (!sec_ok) {
hostapd_logger(iface->bss[0], NULL,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Configured HT40 secondary channel "
"(%d) not found from the channel list "
"of current mode (%d) %s",
sec_chan, iface->current_mode->mode,
hostapd_hw_mode_txt(
iface->current_mode->mode));
ok = 0;
}
}
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 -3;
}
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 -4;
}
return 0;
}
/**
* 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;
}
