static u8 * hostapd_eid_supported_op_classes(struct hostapd_data *hapd, u8 *eid)
{
u8 op_class, channel;
if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_CSA) ||
!hapd->iface->freq)
return eid;
if (ieee80211_freq_to_channel_ext(hapd->iface->freq,
hapd->iconf->secondary_channel,
hapd->iconf->vht_oper_chwidth,
&op_class, &channel) ==
NUM_HOSTAPD_MODES)
return eid;
*eid++ = WLAN_EID_SUPPORTED_OPERATING_CLASSES;
*eid++ = 2;
/* Current Operating Class */
*eid++ = op_class;
/* TODO: Advertise all the supported operating classes */
*eid++ = 0;
return eid;
}
/**
* p2p_freq_to_channel - Convert frequency into channel info
* @op_class: Buffer for returning operating class
* @channel: Buffer for returning channel number
* Returns: 0 on success, -1 if the specified frequency is unknown
*/
int p2p_freq_to_channel(unsigned int freq, u8 *op_class, u8 *channel)
{
/* TODO: this function can be completely removed */
if (ieee80211_freq_to_channel_ext(freq, 0, 0, op_class, channel) ==
NUM_HOSTAPD_MODES)
return -1;
return 0;
}
static int wnm_nei_rep_add_bss(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, u8 *buf, size_t len,
u8 pref)
{
const u8 *ie;
u8 op_class, chan;
int sec_chan = 0, vht = 0;
enum phy_type phy_type;
u32 info;
struct ieee80211_ht_operation *ht_oper = NULL;
struct ieee80211_vht_operation *vht_oper = NULL;
ie = wpa_bss_get_ie(bss, WLAN_EID_HT_OPERATION);
if (ie && ie[1] >= 2) {
ht_oper = (struct ieee80211_ht_operation *) (ie + 2);
if (ht_oper->ht_param & HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
sec_chan = 1;
else if (ht_oper->ht_param &
HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
sec_chan = -1;
}
ie = wpa_bss_get_ie(bss, WLAN_EID_VHT_OPERATION);
if (ie && ie[1] >= 1) {
vht_oper = (struct ieee80211_vht_operation *) (ie + 2);
if (vht_oper->vht_op_info_chwidth == VHT_CHANWIDTH_80MHZ ||
vht_oper->vht_op_info_chwidth == VHT_CHANWIDTH_160MHZ ||
vht_oper->vht_op_info_chwidth == VHT_CHANWIDTH_80P80MHZ)
vht = vht_oper->vht_op_info_chwidth;
}
if (ieee80211_freq_to_channel_ext(bss->freq, sec_chan, vht, &op_class,
&chan) == NUM_HOSTAPD_MODES) {
wpa_printf(MSG_DEBUG,
"WNM: Cannot determine operating class and channel");
return -2;
}
phy_type = ieee80211_get_phy_type(bss->freq, (ht_oper != NULL),
(vht_oper != NULL));
if (phy_type == PHY_TYPE_UNSPECIFIED) {
wpa_printf(MSG_DEBUG,
"WNM: Cannot determine BSS phy type for Neighbor Report");
return -2;
}
info = wnm_get_bss_info(wpa_s, bss);
return wnm_add_nei_rep(buf, len, bss->bssid, info, op_class, chan,
phy_type, pref);
}
int wpas_mbo_supp_op_class_ie(struct wpa_supplicant *wpa_s, int freq, u8 *pos,
size_t len)
{
struct wpabuf *buf;
u8 op, current, chan;
u8 *ie_len;
int res;
/*
* Assume 20 MHz channel for now.
* TODO: Use the secondary channel and VHT channel width that will be
* used after association.
*/
if (ieee80211_freq_to_channel_ext(freq, 0, VHT_CHANWIDTH_USE_HT,
¤t, &chan) == NUM_HOSTAPD_MODES)
return 0;
/*
* Need 3 bytes for EID, length, and current operating class, plus
* 1 byte for every other supported operating class.
*/
buf = wpabuf_alloc(global_op_class_size + 3);
if (!buf)
return 0;
wpabuf_put_u8(buf, WLAN_EID_SUPPORTED_OPERATING_CLASSES);
/* Will set the length later, putting a placeholder */
ie_len = wpabuf_put(buf, 1);
wpabuf_put_u8(buf, current);
for (op = 0; global_op_class[op].op_class; op++) {
if (wpas_op_class_supported(wpa_s, &global_op_class[op]))
wpabuf_put_u8(buf, global_op_class[op].op_class);
}
*ie_len = wpabuf_len(buf) - 2;
if (*ie_len < 2 || wpabuf_len(buf) > len) {
wpa_printf(MSG_ERROR,
"Failed to add supported operating classes IE");
res = 0;
} else {
os_memcpy(pos, wpabuf_head(buf), wpabuf_len(buf));
res = wpabuf_len(buf);
wpa_hexdump_buf(MSG_DEBUG,
"MBO: Added supported operating classes IE",
buf);
}
wpabuf_free(buf);
return res;
}
void hostapd_neighbor_set_own_report(struct hostapd_data *hapd)
{
#ifdef NEED_AP_MLME
u16 capab = hostapd_own_capab_info(hapd);
int ht = hapd->iconf->ieee80211n && !hapd->conf->disable_11n;
int vht = hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac;
struct wpa_ssid_value ssid;
u8 channel, op_class;
u8 center_freq1_idx = 0, center_freq2_idx = 0;
enum nr_chan_width width;
u32 bssid_info;
struct wpabuf *nr;
if (!(hapd->conf->radio_measurements[0] &
WLAN_RRM_CAPS_NEIGHBOR_REPORT))
return;
bssid_info = 3; /* AP is reachable */
bssid_info |= NEI_REP_BSSID_INFO_SECURITY; /* "same as the AP" */
bssid_info |= NEI_REP_BSSID_INFO_KEY_SCOPE; /* "same as the AP" */
if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT)
bssid_info |= NEI_REP_BSSID_INFO_SPECTRUM_MGMT;
bssid_info |= NEI_REP_BSSID_INFO_RM; /* RRM is supported */
if (hapd->conf->wmm_enabled) {
bssid_info |= NEI_REP_BSSID_INFO_QOS;
if (hapd->conf->wmm_uapsd &&
(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD))
bssid_info |= NEI_REP_BSSID_INFO_APSD;
}
if (ht) {
bssid_info |= NEI_REP_BSSID_INFO_HT |
NEI_REP_BSSID_INFO_DELAYED_BA;
/* VHT bit added in IEEE P802.11-REVmc/D4.3 */
if (vht)
bssid_info |= NEI_REP_BSSID_INFO_VHT;
}
/* TODO: Set NEI_REP_BSSID_INFO_MOBILITY_DOMAIN if MDE is set */
if (ieee80211_freq_to_channel_ext(hapd->iface->freq,
hapd->iconf->secondary_channel,
hapd->iconf->vht_oper_chwidth,
&op_class, &channel) ==
NUM_HOSTAPD_MODES)
return;
width = hostapd_get_nr_chan_width(hapd, ht, vht);
if (vht) {
center_freq1_idx = hapd->iconf->vht_oper_centr_freq_seg0_idx;
if (width == NR_CHAN_WIDTH_80P80)
center_freq2_idx =
hapd->iconf->vht_oper_centr_freq_seg1_idx;
} else if (ht) {
ieee80211_freq_to_chan(hapd->iface->freq +
10 * hapd->iconf->secondary_channel,
¢er_freq1_idx);
}
ssid.ssid_len = hapd->conf->ssid.ssid_len;
os_memcpy(ssid.ssid, hapd->conf->ssid.ssid, ssid.ssid_len);
/*
* Neighbor Report element size = BSSID + BSSID info + op_class + chan +
* phy type + wide bandwidth channel subelement.
*/
nr = wpabuf_alloc(ETH_ALEN + 4 + 1 + 1 + 1 + 5);
if (!nr)
return;
wpabuf_put_data(nr, hapd->own_addr, ETH_ALEN);
wpabuf_put_le32(nr, bssid_info);
wpabuf_put_u8(nr, op_class);
wpabuf_put_u8(nr, channel);
wpabuf_put_u8(nr, ieee80211_get_phy_type(hapd->iface->freq, ht, vht));
/*
* Wide Bandwidth Channel subelement may be needed to allow the
* receiving STA to send packets to the AP. See IEEE P802.11-REVmc/D5.0
* Figure 9-301.
*/
wpabuf_put_u8(nr, WNM_NEIGHBOR_WIDE_BW_CHAN);
wpabuf_put_u8(nr, 3);
wpabuf_put_u8(nr, width);
wpabuf_put_u8(nr, center_freq1_idx);
wpabuf_put_u8(nr, center_freq2_idx);
hostapd_neighbor_set(hapd, hapd->own_addr, &ssid, nr, hapd->iconf->lci,
hapd->iconf->civic, hapd->iconf->stationary_ap);
wpabuf_free(nr);
#endif /* NEED_AP_MLME */
}
