P2P: Add configuration support to disable P2P in 6 GHz band
Add a new configuration parameter p2p_6ghz_disable=1 to disable P2P operation in the 6 GHz band. This avoids additional delays caused by scanning 6 GHz channels in p2p_find and p2p_join operations in the cases where user doesn't want P2P connection in the 6 GHz band. Signed-off-by: Sreeramya Soratkal <ssramya@codeaurora.org>
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fd9fe8bc12
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14318ccff5
4 changed files with 69 additions and 2 deletions
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@ -4998,6 +4998,7 @@ static const struct global_parse_data global_fields[] = {
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{ INT(p2p_device_random_mac_addr), 0 },
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{ FUNC(p2p_device_persistent_mac_addr), 0 },
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{ INT(p2p_interface_random_mac_addr), 0 },
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{ INT(p2p_6ghz_disable), 0 },
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#endif /* CONFIG_P2P */
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{ FUNC(country), CFG_CHANGED_COUNTRY },
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{ INT(bss_max_count), 0 },
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@ -779,6 +779,8 @@ struct wpa_config {
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int p2p_ignore_shared_freq;
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int p2p_optimize_listen_chan;
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int p2p_6ghz_disable;
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struct wpabuf *wps_vendor_ext_m1;
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#define MAX_WPS_VENDOR_EXT 10
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@ -1333,6 +1333,10 @@ static void wpa_config_write_global(FILE *f, struct wpa_config *config)
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if (config->p2p_go_freq_change_policy != DEFAULT_P2P_GO_FREQ_MOVE)
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fprintf(f, "p2p_go_freq_change_policy=%u\n",
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config->p2p_go_freq_change_policy);
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if (config->p2p_6ghz_disable)
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fprintf(f, "p2p_6ghz_disable=%d\n", config->p2p_6ghz_disable);
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if (WPA_GET_BE32(config->ip_addr_go))
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fprintf(f, "ip_addr_go=%u.%u.%u.%u\n",
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config->ip_addr_go[0], config->ip_addr_go[1],
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@ -291,6 +291,41 @@ static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
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}
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static int wpas_p2p_add_scan_freq_list(struct wpa_supplicant *wpa_s,
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enum hostapd_hw_mode band,
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struct wpa_driver_scan_params *params)
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{
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struct hostapd_hw_modes *mode;
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int num_chans = 0;
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int *freqs, i;
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mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, band, 0);
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if (!mode)
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return -1;
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if (params->freqs) {
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while (params->freqs[num_chans])
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num_chans++;
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}
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freqs = os_realloc(params->freqs,
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(num_chans + mode->num_channels + 1) * sizeof(int));
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if (!freqs)
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return -1;
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params->freqs = freqs;
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for (i = 0; i < mode->num_channels; i++) {
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if (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)
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continue;
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params->freqs[num_chans++] = mode->channels[i].freq;
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}
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params->freqs[num_chans] = 0;
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return 0;
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}
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static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
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{
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struct wpa_supplicant *wpa_s = work->wpa_s;
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@ -312,6 +347,15 @@ static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
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"Request driver to clear scan cache due to local BSS flush");
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params->only_new_results = 1;
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}
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if (wpa_s->conf->p2p_6ghz_disable && !params->freqs) {
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wpa_printf(MSG_DEBUG,
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"P2P: 6 GHz disabled - update the scan frequency list");
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wpas_p2p_add_scan_freq_list(wpa_s, HOSTAPD_MODE_IEEE80211G,
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params);
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wpas_p2p_add_scan_freq_list(wpa_s, HOSTAPD_MODE_IEEE80211A,
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params);
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}
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ret = wpa_drv_scan(wpa_s, params);
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if (ret == 0)
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wpa_s->curr_scan_cookie = params->scan_cookie;
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@ -3726,7 +3770,9 @@ static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
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u8 ch;
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struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
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if (o->p2p == NO_P2P_SUPP)
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if (o->p2p == NO_P2P_SUPP ||
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(is_6ghz_op_class(o->op_class) &&
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wpa_s->conf->p2p_6ghz_disable))
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continue;
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mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode,
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@ -3804,7 +3850,9 @@ int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
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const struct oper_class_map *o = &global_op_class[op];
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u8 ch;
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if (o->p2p == NO_P2P_SUPP)
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if (o->p2p == NO_P2P_SUPP ||
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(is_6ghz_op_class(o->op_class) &&
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wpa_s->conf->p2p_6ghz_disable))
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continue;
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for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
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@ -5275,6 +5323,13 @@ static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
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if (freq > 0) {
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freqs[0] = freq;
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params.freqs = freqs;
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} else if (wpa_s->conf->p2p_6ghz_disable) {
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wpa_printf(MSG_DEBUG,
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"P2P: 6 GHz disabled - update the scan frequency list");
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wpas_p2p_add_scan_freq_list(wpa_s, HOSTAPD_MODE_IEEE80211G,
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¶ms);
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wpas_p2p_add_scan_freq_list(wpa_s, HOSTAPD_MODE_IEEE80211A,
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¶ms);
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}
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ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
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@ -5305,6 +5360,8 @@ static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
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* the new scan results become available.
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*/
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ret = wpa_drv_scan(wpa_s, ¶ms);
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if (wpa_s->conf->p2p_6ghz_disable && params.freqs != freqs)
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os_free(params.freqs);
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if (!ret) {
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os_get_reltime(&wpa_s->scan_trigger_time);
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wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
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@ -5645,6 +5702,9 @@ int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
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return -1;
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}
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if (is_6ghz_freq(freq) && wpa_s->conf->p2p_6ghz_disable)
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return -2;
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os_free(wpa_s->global->add_psk);
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wpa_s->global->add_psk = NULL;
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