struct ieee80211_bss *
ieee80211_bss_info_update(struct ieee80211_local *local,
struct ieee80211_rx_status *rx_status,
struct ieee80211_mgmt *mgmt,
size_t len,
struct ieee802_11_elems *elems,
struct ieee80211_channel *channel,
bool beacon)
{
struct cfg80211_bss *cbss;
struct ieee80211_bss *bss;
int clen, srlen;
s32 signal = 0;
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
signal = rx_status->signal * 100;
else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
signal = (rx_status->signal * 100) / local->hw.max_signal;
cbss = cfg80211_inform_bss_frame(local->hw.wiphy, channel,
mgmt, len, signal, GFP_ATOMIC);
if (!cbss)
return NULL;
cbss->free_priv = ieee80211_rx_bss_free;
bss = (void *)cbss->priv;
/* save the ERP value so that it is available at association time */
if (elems->erp_info && elems->erp_info_len >= 1) {
bss->erp_value = elems->erp_info[0];
bss->has_erp_value = 1;
}
if (elems->tim) {
struct ieee80211_tim_ie *tim_ie =
(struct ieee80211_tim_ie *)elems->tim;
bss->dtim_period = tim_ie->dtim_period;
}
/* If the beacon had no TIM IE, or it was invalid, use 1 */
if (beacon && !bss->dtim_period)
bss->dtim_period = 1;
/* replace old supported rates if we get new values */
srlen = 0;
if (elems->supp_rates) {
clen = IEEE80211_MAX_SUPP_RATES;
if (clen > elems->supp_rates_len)
clen = elems->supp_rates_len;
memcpy(bss->supp_rates, elems->supp_rates, clen);
srlen += clen;
}
if (elems->ext_supp_rates) {
clen = IEEE80211_MAX_SUPP_RATES - srlen;
if (clen > elems->ext_supp_rates_len)
clen = elems->ext_supp_rates_len;
memcpy(bss->supp_rates + srlen, elems->ext_supp_rates, clen);
srlen += clen;
}
if (srlen)
bss->supp_rates_len = srlen;
bss->wmm_used = elems->wmm_param || elems->wmm_info;
bss->uapsd_supported = is_uapsd_supported(elems);
if (!beacon)
bss->last_probe_resp = jiffies;
return bss;
}
struct ieee80211_bss *
ieee80211_bss_info_update(struct ieee80211_local *local,
struct ieee80211_rx_status *rx_status,
struct ieee80211_mgmt *mgmt, size_t len,
struct ieee802_11_elems *elems,
struct ieee80211_channel *channel)
{
bool beacon = ieee80211_is_beacon(mgmt->frame_control);
struct cfg80211_bss *cbss;
struct ieee80211_bss *bss;
int clen, srlen;
enum nl80211_bss_scan_width scan_width;
s32 signal = 0;
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
signal = rx_status->signal * 100;
else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
signal = (rx_status->signal * 100) / local->hw.max_signal;
scan_width = NL80211_BSS_CHAN_WIDTH_20;
if (rx_status->flag & RX_FLAG_5MHZ)
scan_width = NL80211_BSS_CHAN_WIDTH_5;
if (rx_status->flag & RX_FLAG_10MHZ)
scan_width = NL80211_BSS_CHAN_WIDTH_10;
cbss = cfg80211_inform_bss_width_frame(local->hw.wiphy, channel,
scan_width, mgmt, len, signal,
GFP_ATOMIC);
if (!cbss)
return NULL;
bss = (void *)cbss->priv;
if (beacon)
bss->device_ts_beacon = rx_status->device_timestamp;
else
bss->device_ts_presp = rx_status->device_timestamp;
if (elems->parse_error) {
if (beacon)
bss->corrupt_data |= IEEE80211_BSS_CORRUPT_BEACON;
else
bss->corrupt_data |= IEEE80211_BSS_CORRUPT_PROBE_RESP;
} else {
if (beacon)
bss->corrupt_data &= ~IEEE80211_BSS_CORRUPT_BEACON;
else
bss->corrupt_data &= ~IEEE80211_BSS_CORRUPT_PROBE_RESP;
}
/* save the ERP value so that it is available at association time */
if (elems->erp_info && (!elems->parse_error ||
!(bss->valid_data & IEEE80211_BSS_VALID_ERP))) {
bss->erp_value = elems->erp_info[0];
bss->has_erp_value = true;
if (!elems->parse_error)
bss->valid_data |= IEEE80211_BSS_VALID_ERP;
}
/* replace old supported rates if we get new values */
if (!elems->parse_error ||
!(bss->valid_data & IEEE80211_BSS_VALID_RATES)) {
srlen = 0;
if (elems->supp_rates) {
clen = IEEE80211_MAX_SUPP_RATES;
if (clen > elems->supp_rates_len)
clen = elems->supp_rates_len;
memcpy(bss->supp_rates, elems->supp_rates, clen);
srlen += clen;
}
if (elems->ext_supp_rates) {
clen = IEEE80211_MAX_SUPP_RATES - srlen;
if (clen > elems->ext_supp_rates_len)
clen = elems->ext_supp_rates_len;
memcpy(bss->supp_rates + srlen, elems->ext_supp_rates,
clen);
srlen += clen;
}
if (srlen) {
bss->supp_rates_len = srlen;
if (!elems->parse_error)
bss->valid_data |= IEEE80211_BSS_VALID_RATES;
}
}
if (!elems->parse_error ||
!(bss->valid_data & IEEE80211_BSS_VALID_WMM)) {
bss->wmm_used = elems->wmm_param || elems->wmm_info;
bss->uapsd_supported = is_uapsd_supported(elems);
if (!elems->parse_error)
bss->valid_data |= IEEE80211_BSS_VALID_WMM;
}
if (beacon) {
struct ieee80211_supported_band *sband =
local->hw.wiphy->bands[rx_status->band];
if (!(rx_status->flag & RX_FLAG_HT) &&
!(rx_status->flag & RX_FLAG_VHT))
bss->beacon_rate =
&sband->bitrates[rx_status->rate_idx];
}
return bss;
}
struct ieee80211_bss *
ieee80211_bss_info_update(struct ieee80211_local *local,
struct ieee80211_rx_status *rx_status,
struct ieee80211_mgmt *mgmt,
size_t len,
struct ieee802_11_elems *elems,
struct ieee80211_channel *channel,
bool beacon)
{
struct cfg80211_bss *cbss;
struct ieee80211_bss *bss;
int clen, srlen;
s32 signal = 0;
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
signal = rx_status->signal * 100;
else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
signal = (rx_status->signal * 100) / local->hw.max_signal;
cbss = cfg80211_inform_bss_frame(local->hw.wiphy, channel,
mgmt, len, signal, GFP_ATOMIC);
if (!cbss)
return NULL;
cbss->free_priv = ieee80211_rx_bss_free;
bss = (void *)cbss->priv;
bss->device_ts = rx_status->device_timestamp;
if (elems->parse_error) {
if (beacon)
bss->corrupt_data |= IEEE80211_BSS_CORRUPT_BEACON;
else
bss->corrupt_data |= IEEE80211_BSS_CORRUPT_PROBE_RESP;
} else {
if (beacon)
bss->corrupt_data &= ~IEEE80211_BSS_CORRUPT_BEACON;
else
bss->corrupt_data &= ~IEEE80211_BSS_CORRUPT_PROBE_RESP;
}
/* save the ERP value so that it is available at association time */
if (elems->erp_info && elems->erp_info_len >= 1 &&
(!elems->parse_error ||
!(bss->valid_data & IEEE80211_BSS_VALID_ERP))) {
bss->erp_value = elems->erp_info[0];
bss->has_erp_value = true;
if (!elems->parse_error)
bss->valid_data |= IEEE80211_BSS_VALID_ERP;
}
/* replace old supported rates if we get new values */
if (!elems->parse_error ||
!(bss->valid_data & IEEE80211_BSS_VALID_RATES)) {
srlen = 0;
if (elems->supp_rates) {
clen = IEEE80211_MAX_SUPP_RATES;
if (clen > elems->supp_rates_len)
clen = elems->supp_rates_len;
memcpy(bss->supp_rates, elems->supp_rates, clen);
srlen += clen;
}
if (elems->ext_supp_rates) {
clen = IEEE80211_MAX_SUPP_RATES - srlen;
if (clen > elems->ext_supp_rates_len)
clen = elems->ext_supp_rates_len;
memcpy(bss->supp_rates + srlen, elems->ext_supp_rates,
clen);
srlen += clen;
}
if (srlen) {
bss->supp_rates_len = srlen;
if (!elems->parse_error)
bss->valid_data |= IEEE80211_BSS_VALID_RATES;
}
}
if (!elems->parse_error ||
!(bss->valid_data & IEEE80211_BSS_VALID_WMM)) {
bss->wmm_used = elems->wmm_param || elems->wmm_info;
bss->uapsd_supported = is_uapsd_supported(elems);
if (!elems->parse_error)
bss->valid_data |= IEEE80211_BSS_VALID_WMM;
}
if (!beacon)
bss->last_probe_resp = jiffies;
return bss;
}
