diff options
Diffstat (limited to 'src/ap/hw_features.c')
| -rw-r--r-- | src/ap/hw_features.c | 63 |
1 files changed, 50 insertions, 13 deletions
diff --git a/src/ap/hw_features.c b/src/ap/hw_features.c index 05431d32c205d..fc8786dc311ca 100644 --- a/src/ap/hw_features.c +++ b/src/ap/hw_features.c @@ -260,8 +260,14 @@ static int ieee80211n_check_40mhz_5g(struct hostapd_iface *iface, res = check_40mhz_5g(iface->current_mode, scan_res, pri_chan, sec_chan); - if (res == 2) - ieee80211n_switch_pri_sec(iface); + if (res == 2) { + if (iface->conf->no_pri_sec_switch) { + wpa_printf(MSG_DEBUG, + "Cannot switch PRI/SEC channels due to local constraint"); + } else { + ieee80211n_switch_pri_sec(iface); + } + } return !!res; } @@ -347,8 +353,13 @@ static void ieee80211n_scan_channels_2g4(struct hostapd_iface *iface, sec_freq = pri_freq + 20; else sec_freq = pri_freq - 20; - affected_start = (pri_freq + sec_freq) / 2 - 25; - affected_end = (pri_freq + sec_freq) / 2 + 25; + /* + * Note: Need to find the PRI channel also in cases where the affected + * channel is the SEC channel of a 40 MHz BSS, so need to include the + * scanning coverage here to be 40 MHz from the center frequency. + */ + affected_start = (pri_freq + sec_freq) / 2 - 40; + affected_end = (pri_freq + sec_freq) / 2 + 40; wpa_printf(MSG_DEBUG, "40 MHz affected channel range: [%d,%d] MHz", affected_start, affected_end); @@ -510,7 +521,11 @@ static int ieee80211n_supported_ht_capab(struct hostapd_iface *iface) return 0; } - if ((conf & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) && + /* + * Driver ACS chosen channel may not be HT40 due to internal driver + * restrictions. + */ + if (!iface->conf->acs && (conf & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) && !(hw & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) { wpa_printf(MSG_ERROR, "Driver does not support configured " "HT capability [HT40*]"); @@ -717,6 +732,15 @@ int hostapd_check_ht_capab(struct hostapd_iface *iface) int ret; if (!iface->conf->ieee80211n) return 0; + + if (iface->current_mode->mode != HOSTAPD_MODE_IEEE80211B && + iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G && + (iface->conf->ht_capab & HT_CAP_INFO_DSSS_CCK40MHZ)) { + wpa_printf(MSG_DEBUG, + "Disable HT capability [DSSS_CCK-40] on 5 GHz band"); + iface->conf->ht_capab &= ~HT_CAP_INFO_DSSS_CCK40MHZ; + } + if (!ieee80211n_supported_ht_capab(iface)) return -1; #ifdef CONFIG_IEEE80211AC @@ -740,6 +764,9 @@ static int hostapd_is_usable_chan(struct hostapd_iface *iface, int i; struct hostapd_channel_data *chan; + if (!iface->current_mode) + return 0; + for (i = 0; i < iface->current_mode->num_channels; i++) { chan = &iface->current_mode->channels[i]; if (chan->chan != channel) @@ -801,6 +828,12 @@ hostapd_check_chans(struct hostapd_iface *iface) static void hostapd_notify_bad_chans(struct hostapd_iface *iface) { + if (!iface->current_mode) { + hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211, + HOSTAPD_LEVEL_WARNING, + "Hardware does not support configured mode"); + return; + } hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_WARNING, @@ -891,14 +924,18 @@ int hostapd_select_hw_mode(struct hostapd_iface *iface) } if (iface->current_mode == NULL) { - wpa_printf(MSG_ERROR, "Hardware does not support configured " - "mode"); - hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211, - HOSTAPD_LEVEL_WARNING, - "Hardware does not support configured mode " - "(%d) (hw_mode in hostapd.conf)", - (int) iface->conf->hw_mode); - return -2; + if (!(iface->drv_flags & WPA_DRIVER_FLAGS_ACS_OFFLOAD) || + !(iface->drv_flags & WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY)) + { + wpa_printf(MSG_ERROR, + "Hardware does not support configured mode"); + hostapd_logger(iface->bss[0], NULL, + HOSTAPD_MODULE_IEEE80211, + HOSTAPD_LEVEL_WARNING, + "Hardware does not support configured mode (%d) (hw_mode in hostapd.conf)", + (int) iface->conf->hw_mode); + return -2; + } } switch (hostapd_check_chans(iface)) { |