P2P: Extend channel determination/validation to 6 GHz channels
Extend the previously 5 GHz specific 80 and 160 MHz channels helper functions to support 6 GHz channels. Signed-off-by: Sreeramya Soratkal <ssramya@codeaurora.org>
This commit is contained in:
Sreeramya Soratkal
Jouni Malinen
parent
9b50746f50
commit
eaf850867b
5 changed files with 162 additions and 54 deletions
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@ -1894,7 +1894,7 @@ const struct oper_class_map global_op_class[] = {
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*/
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{ HOSTAPD_MODE_IEEE80211A, 128, 36, 177, 4, BW80, P2P_SUPP },
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{ HOSTAPD_MODE_IEEE80211A, 129, 36, 177, 4, BW160, P2P_SUPP },
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{ HOSTAPD_MODE_IEEE80211A, 131, 1, 233, 4, BW20, NO_P2P_SUPP },
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{ HOSTAPD_MODE_IEEE80211A, 131, 1, 233, 4, BW20, P2P_SUPP },
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{ HOSTAPD_MODE_IEEE80211A, 132, 1, 233, 8, BW40, NO_P2P_SUPP },
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{ HOSTAPD_MODE_IEEE80211A, 133, 1, 233, 16, BW80, NO_P2P_SUPP },
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{ HOSTAPD_MODE_IEEE80211A, 134, 1, 233, 32, BW160, NO_P2P_SUPP },
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@ -1329,7 +1329,7 @@ static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
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struct nlattr *nl;
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int rem;
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struct scan_info *info;
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#define MAX_REPORT_FREQS 50
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#define MAX_REPORT_FREQS 100
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int freqs[MAX_REPORT_FREQS];
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int num_freqs = 0;
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@ -1361,7 +1361,7 @@ static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
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}
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}
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if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
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char msg[300], *pos, *end;
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char msg[500], *pos, *end;
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int res;
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pos = msg;
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@ -2273,7 +2273,7 @@ static void send_vendor_scan_event(struct wpa_driver_nl80211_data *drv,
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}
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if (tb[QCA_WLAN_VENDOR_ATTR_SCAN_FREQUENCIES]) {
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char msg[300], *pos, *end;
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char msg[500], *pos, *end;
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int res;
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pos = msg;
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@ -109,13 +109,15 @@ static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s,
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switch (hostapd_get_oper_chwidth(conf)) {
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case CHANWIDTH_80MHZ:
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case CHANWIDTH_80P80MHZ:
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center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel);
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center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel,
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conf->op_class);
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wpa_printf(MSG_DEBUG,
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"VHT center channel %u for 80 or 80+80 MHz bandwidth",
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center_chan);
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break;
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case CHANWIDTH_160MHZ:
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center_chan = wpas_p2p_get_vht160_center(wpa_s, mode, channel);
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center_chan = wpas_p2p_get_vht160_center(wpa_s, mode, channel,
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conf->op_class);
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wpa_printf(MSG_DEBUG,
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"VHT center channel %u for 160 MHz bandwidth",
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center_chan);
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@ -127,15 +129,25 @@ static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s,
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* not supported.
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*/
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hostapd_set_oper_chwidth(conf, CHANWIDTH_160MHZ);
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center_chan = wpas_p2p_get_vht160_center(wpa_s, mode, channel);
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ieee80211_freq_to_channel_ext(ssid->frequency, 0,
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conf->vht_oper_chwidth,
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&conf->op_class,
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&conf->channel);
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center_chan = wpas_p2p_get_vht160_center(wpa_s, mode, channel,
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conf->op_class);
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if (center_chan && is_chanwidth160_supported(mode, conf)) {
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wpa_printf(MSG_DEBUG,
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"VHT center channel %u for auto-selected 160 MHz bandwidth",
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center_chan);
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} else {
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hostapd_set_oper_chwidth(conf, CHANWIDTH_80MHZ);
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ieee80211_freq_to_channel_ext(ssid->frequency, 0,
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conf->vht_oper_chwidth,
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&conf->op_class,
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&conf->channel);
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center_chan = wpas_p2p_get_vht80_center(wpa_s, mode,
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channel);
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channel,
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conf->op_class);
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wpa_printf(MSG_DEBUG,
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"VHT center channel %u for auto-selected 80 MHz bandwidth",
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center_chan);
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@ -183,9 +195,15 @@ int wpa_supplicant_conf_ap_ht(struct wpa_supplicant *wpa_s,
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struct wpa_ssid *ssid,
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struct hostapd_config *conf)
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{
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conf->hw_mode = ieee80211_freq_to_channel_ext(ssid->frequency, 0,
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ssid->max_oper_chwidth,
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&conf->op_class,
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&conf->channel);
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/* ssid->max_oper_chwidth is not valid in all cases, so fall back to the
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* less specific mechanism, if needed, at least for now */
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if (conf->hw_mode == NUM_HOSTAPD_MODES)
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conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
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&conf->channel);
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if (conf->hw_mode == NUM_HOSTAPD_MODES) {
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wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
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ssid->frequency);
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@ -3546,19 +3546,18 @@ static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
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static enum chan_allowed has_channel(struct wpa_global *global,
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struct hostapd_hw_modes *mode, u8 chan,
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int *flags)
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struct hostapd_hw_modes *mode, u8 op_class,
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u8 chan, int *flags)
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{
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int i;
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unsigned int freq;
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freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
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chan * 5;
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freq = ieee80211_chan_to_freq(NULL, op_class, chan);
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if (wpas_p2p_disallowed_freq(global, freq))
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return NOT_ALLOWED;
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for (i = 0; i < mode->num_channels; i++) {
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if (mode->channels[i].chan == chan) {
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if ((unsigned int) mode->channels[i].freq == freq) {
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if (flags)
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*flags = mode->channels[i].flag;
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if (mode->channels[i].flag &
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@ -3577,15 +3576,15 @@ static enum chan_allowed has_channel(struct wpa_global *global,
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static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
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struct hostapd_hw_modes *mode,
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u8 channel)
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u8 channel, const u8 *center_channels,
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size_t num_chan)
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{
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u8 center_channels[] = { 42, 58, 106, 122, 138, 155, 171 };
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size_t i;
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if (mode->mode != HOSTAPD_MODE_IEEE80211A)
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return 0;
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for (i = 0; i < ARRAY_SIZE(center_channels); i++)
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for (i = 0; i < num_chan; i++)
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/*
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* In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
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* so the center channel is 6 channels away from the start/end.
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@ -3598,25 +3597,43 @@ static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
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}
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static const u8 center_channels_5ghz_80mhz[] = { 42, 58, 106, 122, 138,
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155, 171 };
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static const u8 center_channels_6ghz_80mhz[] = { 7, 23, 39, 55, 71, 87, 103,
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119, 135, 151, 167, 183, 199,
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215 };
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static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
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struct hostapd_hw_modes *mode,
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u8 channel, u8 bw)
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u8 op_class, u8 channel, u8 bw)
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{
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u8 center_chan;
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int i, flags;
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enum chan_allowed res, ret = ALLOWED;
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const u8 *chans;
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size_t num_chans;
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bool is_6ghz = is_6ghz_op_class(op_class);
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center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
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if (is_6ghz) {
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chans = center_channels_6ghz_80mhz;
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num_chans = ARRAY_SIZE(center_channels_6ghz_80mhz);
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} else {
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chans = center_channels_5ghz_80mhz;
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num_chans = ARRAY_SIZE(center_channels_5ghz_80mhz);
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}
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center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel,
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chans, num_chans);
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if (!center_chan)
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return NOT_ALLOWED;
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if (center_chan >= 58 && center_chan <= 138)
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if (!is_6ghz && center_chan >= 58 && center_chan <= 138)
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return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
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/* check all the channels are available */
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for (i = 0; i < 4; i++) {
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int adj_chan = center_chan - 6 + i * 4;
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res = has_channel(wpa_s->global, mode, adj_chan, &flags);
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res = has_channel(wpa_s->global, mode, op_class, adj_chan,
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&flags);
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if (res == NOT_ALLOWED)
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return NOT_ALLOWED;
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if (res == NO_IR)
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@ -3638,15 +3655,15 @@ static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
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static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
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struct hostapd_hw_modes *mode,
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u8 channel)
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u8 channel, const u8 *center_channels,
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size_t num_chan)
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{
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u8 center_channels[] = { 50, 114, 163 };
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unsigned int i;
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if (mode->mode != HOSTAPD_MODE_IEEE80211A)
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return 0;
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for (i = 0; i < ARRAY_SIZE(center_channels); i++)
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for (i = 0; i < num_chan; i++)
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/*
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* In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
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* so the center channel is 14 channels away from the start/end.
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@ -3659,15 +3676,29 @@ static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
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}
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static const u8 center_channels_5ghz_160mhz[] = { 50, 114, 163 };
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static const u8 center_channels_6ghz_160mhz[] = { 15, 47, 79, 111, 143, 175,
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207 };
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static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
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struct hostapd_hw_modes *mode,
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u8 channel, u8 bw)
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u8 op_class, u8 channel, u8 bw)
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{
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u8 center_chan;
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int i, flags;
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enum chan_allowed res, ret = ALLOWED;
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const u8 *chans;
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size_t num_chans;
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center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
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if (is_6ghz_op_class(op_class)) {
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chans = center_channels_6ghz_160mhz;
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num_chans = ARRAY_SIZE(center_channels_6ghz_160mhz);
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} else {
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chans = center_channels_5ghz_160mhz;
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num_chans = ARRAY_SIZE(center_channels_5ghz_160mhz);
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}
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center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel,
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chans, num_chans);
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if (!center_chan)
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return NOT_ALLOWED;
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/* VHT 160 MHz uses DFS channels in most countries. */
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@ -3676,7 +3707,8 @@ static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
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for (i = 0; i < 8; i++) {
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int adj_chan = center_chan - 14 + i * 4;
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res = has_channel(wpa_s->global, mode, adj_chan, &flags);
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res = has_channel(wpa_s->global, mode, op_class, adj_chan,
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&flags);
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if (res == NOT_ALLOWED)
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return NOT_ALLOWED;
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@ -3721,24 +3753,28 @@ static enum chan_allowed wpas_p2p_verify_edmg(struct wpa_supplicant *wpa_s,
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static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
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struct hostapd_hw_modes *mode,
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u8 channel, u8 bw)
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u8 op_class, u8 channel, u8 bw)
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{
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int flag = 0;
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enum chan_allowed res, res2;
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res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
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res2 = res = has_channel(wpa_s->global, mode, op_class, channel, &flag);
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if (bw == BW40MINUS) {
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if (!(flag & HOSTAPD_CHAN_HT40MINUS))
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return NOT_ALLOWED;
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res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
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res2 = has_channel(wpa_s->global, mode, op_class, channel - 4,
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NULL);
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} else if (bw == BW40PLUS) {
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if (!(flag & HOSTAPD_CHAN_HT40PLUS))
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return NOT_ALLOWED;
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res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
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res2 = has_channel(wpa_s->global, mode, op_class, channel + 4,
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NULL);
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} else if (bw == BW80) {
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res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
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res2 = wpas_p2p_verify_80mhz(wpa_s, mode, op_class, channel,
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bw);
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} else if (bw == BW160) {
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res2 = wpas_p2p_verify_160mhz(wpa_s, mode, channel, bw);
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res2 = wpas_p2p_verify_160mhz(wpa_s, mode, op_class, channel,
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bw);
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} else if (bw == BW4320 || bw == BW6480 || bw == BW8640) {
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return wpas_p2p_verify_edmg(wpa_s, mode, channel);
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}
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@ -3792,7 +3828,8 @@ static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
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ch < 149 && ch + o->inc > 149)
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ch = 149;
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res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
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res = wpas_p2p_verify_channel(wpa_s, mode, o->op_class,
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ch, o->bw);
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if (res == ALLOWED) {
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if (reg == NULL) {
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if (cla == P2P_MAX_REG_CLASSES)
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@ -3862,7 +3899,8 @@ int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
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(o->bw != BW40PLUS && o->bw != BW40MINUS) ||
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ch != channel)
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continue;
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ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
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ret = wpas_p2p_verify_channel(wpa_s, mode, o->op_class,
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ch, o->bw);
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if (ret == ALLOWED)
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return (o->bw == BW40MINUS) ? -1 : 1;
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}
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@ -3872,21 +3910,45 @@ int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
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int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
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struct hostapd_hw_modes *mode, u8 channel)
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struct hostapd_hw_modes *mode, u8 channel,
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u8 op_class)
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{
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if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
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const u8 *chans;
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size_t num_chans;
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if (!wpas_p2p_verify_channel(wpa_s, mode, op_class, channel, BW80))
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return 0;
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return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
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if (is_6ghz_op_class(op_class)) {
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chans = center_channels_6ghz_80mhz;
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num_chans = ARRAY_SIZE(center_channels_6ghz_80mhz);
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} else {
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chans = center_channels_5ghz_80mhz;
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num_chans = ARRAY_SIZE(center_channels_5ghz_80mhz);
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}
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return wpas_p2p_get_center_80mhz(wpa_s, mode, channel,
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chans, num_chans);
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}
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int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
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struct hostapd_hw_modes *mode, u8 channel)
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struct hostapd_hw_modes *mode, u8 channel,
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u8 op_class)
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{
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if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160))
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const u8 *chans;
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size_t num_chans;
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if (!wpas_p2p_verify_channel(wpa_s, mode, op_class, channel, BW160))
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return 0;
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return wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
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if (is_6ghz_op_class(op_class)) {
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chans = center_channels_6ghz_160mhz;
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num_chans = ARRAY_SIZE(center_channels_6ghz_160mhz);
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} else {
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chans = center_channels_5ghz_160mhz;
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num_chans = ARRAY_SIZE(center_channels_5ghz_160mhz);
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}
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return wpas_p2p_get_center_160mhz(wpa_s, mode, channel,
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chans, num_chans);
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}
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@ -6440,14 +6502,16 @@ static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
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enum hostapd_hw_mode mode;
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struct hostapd_hw_modes *hwmode;
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u8 chan;
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u8 op_class;
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cand = wpa_s->p2p_group_common_freqs[i];
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op_class = is_6ghz_freq(cand) ? 133 : 128;
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mode = ieee80211_freq_to_chan(cand, &chan);
|
||||
hwmode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
|
||||
mode, is_6ghz_freq(cand));
|
||||
if (!hwmode ||
|
||||
wpas_p2p_verify_channel(wpa_s, hwmode, chan,
|
||||
BW80) != ALLOWED)
|
||||
wpas_p2p_verify_channel(wpa_s, hwmode, op_class,
|
||||
chan, BW80) != ALLOWED)
|
||||
continue;
|
||||
if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
|
||||
params->freq = cand;
|
||||
|
|
@ -6466,20 +6530,44 @@ static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
|
|||
for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
|
||||
enum hostapd_hw_mode mode;
|
||||
struct hostapd_hw_modes *hwmode;
|
||||
u8 chan;
|
||||
u8 chan, op_class;
|
||||
bool is_6ghz, supported = false;
|
||||
|
||||
is_6ghz = is_6ghz_freq(cand);
|
||||
cand = wpa_s->p2p_group_common_freqs[i];
|
||||
mode = ieee80211_freq_to_chan(cand, &chan);
|
||||
hwmode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
|
||||
mode, is_6ghz_freq(cand));
|
||||
mode, is_6ghz);
|
||||
if (!wpas_same_band(wpa_s->current_ssid->frequency,
|
||||
cand) ||
|
||||
!hwmode ||
|
||||
(wpas_p2p_verify_channel(wpa_s, hwmode, chan,
|
||||
BW40MINUS) != ALLOWED &&
|
||||
wpas_p2p_verify_channel(wpa_s, hwmode, chan,
|
||||
BW40PLUS) != ALLOWED))
|
||||
!hwmode)
|
||||
continue;
|
||||
if (is_6ghz &&
|
||||
wpas_p2p_verify_channel(wpa_s, hwmode, 132, chan,
|
||||
BW40) == ALLOWED)
|
||||
supported = true;
|
||||
|
||||
if (!is_6ghz &&
|
||||
ieee80211_freq_to_channel_ext(
|
||||
cand, -1, CHANWIDTH_USE_HT, &op_class,
|
||||
&chan) != NUM_HOSTAPD_MODES &&
|
||||
wpas_p2p_verify_channel(
|
||||
wpa_s, hwmode, op_class, chan,
|
||||
BW40MINUS) == ALLOWED)
|
||||
supported = true;
|
||||
|
||||
if (!supported && !is_6ghz &&
|
||||
ieee80211_freq_to_channel_ext(
|
||||
cand, 1, CHANWIDTH_USE_HT, &op_class,
|
||||
&chan) != NUM_HOSTAPD_MODES &&
|
||||
wpas_p2p_verify_channel(
|
||||
wpa_s, hwmode, op_class, chan,
|
||||
BW40PLUS) == ALLOWED)
|
||||
supported = true;
|
||||
|
||||
if (!supported)
|
||||
continue;
|
||||
|
||||
if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
|
||||
params->freq = cand;
|
||||
wpa_printf(MSG_DEBUG,
|
||||
|
|
|
|||
|
|
@ -145,9 +145,11 @@ int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s);
|
|||
int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
|
||||
struct hostapd_hw_modes *mode, u8 channel);
|
||||
int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
|
||||
struct hostapd_hw_modes *mode, u8 channel);
|
||||
struct hostapd_hw_modes *mode, u8 channel,
|
||||
u8 op_class);
|
||||
int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
|
||||
struct hostapd_hw_modes *mode, u8 channel);
|
||||
struct hostapd_hw_modes *mode, u8 channel,
|
||||
u8 op_class);
|
||||
unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s);
|
||||
void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
|
||||
const u8 *p2p_dev_addr,
|
||||
|
|
|
|||
Loading…
Reference in a new issue