int ieee802_11_set_beacon(struct hostapd_data *hapd)
{
struct wpa_driver_ap_params params;
struct hostapd_freq_params freq;
struct hostapd_iface *iface = hapd->iface;
struct hostapd_config *iconf = iface->conf;
struct wpabuf *beacon, *proberesp, *assocresp;
int res, ret = -1;
if (hapd->csa_in_progress) {
wpa_printf(MSG_ERROR, "Cannot set beacons during CSA period");
return -1;
}
hapd->beacon_set_done = 1;
if (ieee802_11_build_ap_params(hapd, ¶ms) < 0)
return -1;
if (hostapd_build_ap_extra_ies(hapd, &beacon, &proberesp, &assocresp) <
0)
goto fail;
params.beacon_ies = beacon;
params.proberesp_ies = proberesp;
params.assocresp_ies = assocresp;
if (iface->current_mode &&
hostapd_set_freq_params(&freq, iconf->hw_mode, iface->freq,
iconf->channel, iconf->ieee80211n,
iconf->ieee80211ac,
iconf->secondary_channel,
iconf->vht_oper_chwidth,
iconf->vht_oper_centr_freq_seg0_idx,
iconf->vht_oper_centr_freq_seg1_idx,
iface->current_mode->vht_capab) == 0)
params.freq = &freq;
res = hostapd_drv_set_ap(hapd, ¶ms);
// MANA - Start Beacon Stuffs here
//hostapd_free_ap_extra_ies(hapd, beacon, proberesp, assocresp);
//struct wpa_driver_ap_params params2 = params;
//os_memset(¶ms2.ssid, 0, params2.ssid_len);
//params2.hide_ssid = HIDDEN_SSID_ZERO_CONTENTS;
//hostapd_build_ap_extra_ies(hapd, &beacon, &proberesp, &assocresp);
//params2.beacon_ies = beacon;
//params2.proberesp_ies = proberesp;
//params2.assocresp_ies = assocresp;
//wpa_printf(MSG_INFO, "ZZZZ : Sending Hidden AP: %s", params2.ssid);
//res = hostapd_drv_set_ap(hapd, ¶ms2);
//hostapd_free_ap_extra_ies(hapd, beacon, proberesp, assocresp);
// MANA - End Beacon Stuffs here
if (res)
wpa_printf(MSG_ERROR, "Failed to set beacon parameters");
else
ret = 0;
fail:
ieee802_11_free_ap_params(¶ms);
return ret;
}
int hostapd_start_dfs_cac(struct hostapd_iface *iface, int mode, int freq,
int channel, int ht_enabled, int vht_enabled,
int sec_channel_offset, int vht_oper_chwidth,
int center_segment0, int center_segment1)
{
struct hostapd_data *hapd = iface->bss[0];
struct hostapd_freq_params data;
int res;
if (!hapd->driver || !hapd->driver->start_dfs_cac)
return 0;
if (!iface->conf->ieee80211h) {
wpa_printf(MSG_ERROR, "Can't start DFS CAC, DFS functionality "
"is not enabled");
return -1;
}
if (hostapd_set_freq_params(&data, mode, freq, channel, ht_enabled,
vht_enabled, sec_channel_offset,
vht_oper_chwidth, center_segment0,
center_segment1,
iface->current_mode->vht_capab))
return -1;
res = hapd->driver->start_dfs_cac(hapd->drv_priv, &data);
if (!res)
iface->cac_started = 1;
return res;
}
int ieee802_11_set_beacon(struct hostapd_data *hapd)
{
struct wpa_driver_ap_params params;
struct hostapd_freq_params freq;
struct hostapd_iface *iface = hapd->iface;
struct hostapd_config *iconf = iface->conf;
struct wpabuf *beacon, *proberesp, *assocresp;
int res, ret = -1;
if (hapd->csa_in_progress) {
wpa_printf(MSG_ERROR, "Cannot set beacons during CSA period");
return -1;
}
hapd->beacon_set_done = 1;
if (ieee802_11_build_ap_params(hapd, ¶ms) < 0)
return -1;
if (hostapd_build_ap_extra_ies(hapd, &beacon, &proberesp, &assocresp) <
0)
goto fail;
params.beacon_ies = beacon;
params.proberesp_ies = proberesp;
params.assocresp_ies = assocresp;
params.reenable = hapd->reenable_beacon;
hapd->reenable_beacon = 0;
if (iface->current_mode &&
hostapd_set_freq_params(&freq, iconf->hw_mode, iface->freq,
iconf->channel, iconf->ieee80211n,
iconf->ieee80211ac,
iconf->secondary_channel,
iconf->vht_oper_chwidth,
iconf->vht_oper_centr_freq_seg0_idx,
iconf->vht_oper_centr_freq_seg1_idx,
iface->current_mode->vht_capab,
iconf->bwmode) == 0)
params.freq = &freq;
res = hostapd_drv_set_ap(hapd, ¶ms);
hostapd_free_ap_extra_ies(hapd, beacon, proberesp, assocresp);
if (res)
wpa_printf(MSG_ERROR, "Failed to set beacon parameters");
else
ret = 0;
fail:
ieee802_11_free_ap_params(¶ms);
return ret;
}
int hostapd_set_freq(struct hostapd_data *hapd, int mode, int freq,
int channel, int ht_enabled, int vht_enabled,
int sec_channel_offset, int vht_oper_chwidth,
int center_segment0, int center_segment1)
{
struct hostapd_freq_params data;
if (hostapd_set_freq_params(&data, mode, freq, channel, ht_enabled,
vht_enabled, sec_channel_offset,
vht_oper_chwidth,
center_segment0, center_segment1,
hapd->iface->current_mode->vht_capab))
return -1;
if (hapd->driver == NULL)
return 0;
if (hapd->driver->set_freq == NULL)
return 0;
return hapd->driver->set_freq(hapd->drv_priv, &data);
}
static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
{
struct hostapd_channel_data *channel;
int secondary_channel;
u8 vht_oper_centr_freq_seg0_idx;
u8 vht_oper_centr_freq_seg1_idx;
int skip_radar = 1;
struct csa_settings csa_settings;
unsigned int i;
int err = 1;
wpa_printf(MSG_DEBUG, "%s called (CAC active: %s, CSA active: %s)",
__func__, iface->cac_started ? "yes" : "no",
hostapd_csa_in_progress(iface) ? "yes" : "no");
/* Check if CSA in progress */
if (hostapd_csa_in_progress(iface))
return 0;
/* Check if active CAC */
if (iface->cac_started)
return hostapd_dfs_start_channel_switch_cac(iface);
/* Perform channel switch/CSA */
channel = dfs_get_valid_channel(iface, &secondary_channel,
&vht_oper_centr_freq_seg0_idx,
&vht_oper_centr_freq_seg1_idx,
skip_radar);
if (!channel) {
/*
* If there is no channel to switch immediately to, check if
* there is another channel where we can switch even if it
* requires to perform a CAC first.
*/
skip_radar = 0;
channel = dfs_get_valid_channel(iface, &secondary_channel,
&vht_oper_centr_freq_seg0_idx,
&vht_oper_centr_freq_seg1_idx,
skip_radar);
if (!channel) {
wpa_printf(MSG_INFO,
"%s: no DFS channels left, waiting for NOP to finish",
__func__);
return err;
}
iface->freq = channel->freq;
iface->conf->channel = channel->chan;
iface->conf->secondary_channel = secondary_channel;
iface->conf->vht_oper_centr_freq_seg0_idx =
vht_oper_centr_freq_seg0_idx;
iface->conf->vht_oper_centr_freq_seg1_idx =
vht_oper_centr_freq_seg1_idx;
hostapd_disable_iface(iface);
hostapd_enable_iface(iface);
return 0;
}
wpa_printf(MSG_DEBUG, "DFS will switch to a new channel %d",
channel->chan);
wpa_msg(iface->bss[0]->msg_ctx, MSG_INFO, DFS_EVENT_NEW_CHANNEL
"freq=%d chan=%d sec_chan=%d", channel->freq,
channel->chan, secondary_channel);
/* Setup CSA request */
os_memset(&csa_settings, 0, sizeof(csa_settings));
csa_settings.cs_count = 5;
csa_settings.block_tx = 1;
err = hostapd_set_freq_params(&csa_settings.freq_params,
iface->conf->hw_mode,
channel->freq,
channel->chan,
iface->conf->ieee80211n,
iface->conf->ieee80211ac,
secondary_channel,
iface->conf->vht_oper_chwidth,
vht_oper_centr_freq_seg0_idx,
vht_oper_centr_freq_seg1_idx,
iface->current_mode->vht_capab,
iface->conf->bwmode);
if (err) {
wpa_printf(MSG_ERROR, "DFS failed to calculate CSA freq params");
hostapd_disable_iface(iface);
return err;
}
for (i = 0; i < iface->num_bss; i++) {
err = hostapd_switch_channel(iface->bss[i], &csa_settings);
if (err)
break;
}
if (err) {
wpa_printf(MSG_WARNING, "DFS failed to schedule CSA (%d) - trying fallback",
err);
iface->freq = channel->freq;
iface->conf->channel = channel->chan;
iface->conf->secondary_channel = secondary_channel;
iface->conf->vht_oper_centr_freq_seg0_idx =
vht_oper_centr_freq_seg0_idx;
iface->conf->vht_oper_centr_freq_seg1_idx =
vht_oper_centr_freq_seg1_idx;
hostapd_disable_iface(iface);
hostapd_enable_iface(iface);
return 0;
}
/* Channel configuration will be updated once CSA completes and
* ch_switch_notify event is received */
wpa_printf(MSG_DEBUG, "DFS waiting channel switch event");
return 0;
}
