Есть сетевая карта USB Wi-Fi, которую я хочу использовать как точку доступа Wi-Fi. Когда я настраиваю карту работать на канале, входящем в диапазон частот радаров (а именно, каналы 52, 100, 116, 132), «hostapd» выдаёт
Channel 52 (primary) not allowed for AP mode, flags: 0x979 RADAR
Число после «flags» зависит от канала. Насколько я знаю, даже если поблизости работает радар, карта должна переключиться на другой канал, а не отказываться работать. На канала вне диапазона радаров точка доступа работает. Изменение ширины канала («vht_oper_chwidth») не снимает это ограничение. Как узнать, это ограничение чипа карты, драйвера или «hostapd»?
>cat /etc/hostapd/hostapd.conf
# Wireless Interface
driver=nl80211
interface=wifiap
logger_syslog=-1
logger_syslog_level=2
logger_stdout=-1
logger_stdout_level=2
# Wireless Environment
country_code=UA
country3=0x49
ieee80211d=1
ieee80211h=1
ieee80211n=1
ieee80211ac=1
hw_mode=a
require_ht=1
require_vht=1
ht_capab=[HT40+][SHORT-GI-20][SHORT-GI-40][DSSS_CCK-40][MAX-AMSDU-3839]
vht_capab=[MAX-MPDU-3895][SHORT-GI-80][SU-BEAMFORMEE]
vht_oper_chwidth=1
channel=52
vht_oper_centr_freq_seg0_idx=58
ssid=skipped
# Authentication and Encryption
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=skipped
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP CCMP
rsn_pairwise=CCMP
>hostapd -dd /etc/hostapd/hostapd.conf
random: Trying to read entropy from /dev/random
Configuration file: /etc/hostapd/hostapd.conf
nl80211: Supported cipher 00-0f-ac:1
nl80211: Supported cipher 00-0f-ac:5
nl80211: Supported cipher 00-0f-ac:2
nl80211: Supported cipher 00-0f-ac:4
nl80211: Supported cipher 00-0f-ac:6
nl80211: interface wifiap in phy phy0
nl80211: Set mode ifindex 3 iftype 3 (AP)
nl80211: Setup AP(wifiap) - device_ap_sme=1 use_monitor=0
nl80211: Subscribe to mgmt frames with AP handle 0x558a43d5b0e0 (device SME)
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=04
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=0501
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=0503
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=0504
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=06
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=08
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=09
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=0a
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=11
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x558a43d5b0e0 match=7f
nl80211: Register frame type=0xb0 (WLAN_FC_STYPE_AUTH) nl_handle=0x558a43d5b0e0 match=
nl80211: Enable Probe Request reporting nl_preq=0x558a43d60710
nl80211: Register frame type=0x40 (WLAN_FC_STYPE_PROBE_REQ) nl_handle=0x558a43d60710 match=
rfkill: initial event: idx=0 type=1 op=0 soft=0 hard=0
nl80211: Add own interface ifindex 3 (ifidx_reason -1)
nl80211: if_indices[16]: 3(-1)
phy: phy0
BSS count 1, BSSID mask 00:00:00:00:00:00 (0 bits)
wifiap: interface state UNINITIALIZED->COUNTRY_UPDATE
Previous country code UA, new country code UAI
nl80211: Regulatory information - country=UA (DFS-ETSI)
nl80211: 2400-2483 @ 40 MHz 20 mBm (no outdoor)
nl80211: 5150-5250 @ 80 MHz 20 mBm (no outdoor)
nl80211: 5250-5350 @ 80 MHz 20 mBm (no outdoor) (DFS)
nl80211: 5490-5670 @ 160 MHz 20 mBm (DFS)
nl80211: 5735-5835 @ 80 MHz 20 mBm
nl80211: 57000-66000 @ 2160 MHz 40 mBm
nl80211: Added 802.11b mode based on 802.11g information
nl80211: Mode IEEE 802.11g: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467[NO_IR] 2472[NO_IR] 2484[DISABLED]
nl80211: Mode IEEE 802.11a: 5180 5200 5220 5240 5260[RADAR] 5280[RADAR] 5300[RADAR] 5320[RADAR] 5500[RADAR] 5520[RADAR] 5540[RADAR] 5560[RADAR] 5580[RADAR] 5600[RADAR] 5620[RADAR] 5640[RADAR] 5660[RADAR] 5680[RADAR]
nl80211: Mode IEEE 802.11b: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467[NO_IR] 2472[NO_IR] 2484[DISABLED]
Allowed channel: mode=1 chan=1 freq=2412 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=2 freq=2417 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=3 freq=2422 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=4 freq=2427 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=5 freq=2432 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=6 freq=2437 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=7 freq=2442 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=8 freq=2447 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=9 freq=2452 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=10 freq=2457 MHz max_tx_power=20 dBm
Allowed channel: mode=1 chan=11 freq=2462 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=36 freq=5180 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=40 freq=5200 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=44 freq=5220 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=48 freq=5240 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=149 freq=5745 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=153 freq=5765 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=157 freq=5785 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=161 freq=5805 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=165 freq=5825 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=1 freq=2412 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=2 freq=2417 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=3 freq=2422 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=4 freq=2427 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=5 freq=2432 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=6 freq=2437 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=7 freq=2442 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=8 freq=2447 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=9 freq=2452 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=10 freq=2457 MHz max_tx_power=20 dBm
Allowed channel: mode=0 chan=11 freq=2462 MHz max_tx_power=20 dBm
Channel 52 (primary) not allowed for AP mode, flags: 0x979 RADAR
wifiap: IEEE 802.11 Configured channel (52) not found from the channel list of current mode (2) IEEE 802.11a
wifiap: IEEE 802.11 Hardware does not support configured channel
Could not select hw_mode and channel. (-3)
wifiap: interface state COUNTRY_UPDATE->DISABLED
wifiap: AP-DISABLED
wifiap: Unable to setup interface.
hostapd_interface_deinit_free(0x558a43d58bd0)
hostapd_interface_deinit_free: num_bss=1 conf->num_bss=1
hostapd_interface_deinit(0x558a43d58bd0)
wifiap: interface state DISABLED->DISABLED
hostapd_bss_deinit: deinit bss wifiap
wifiap: Deauthenticate all stations
nl80211: sta_remove -> DEL_STATION wifiap ff:ff:ff:ff:ff:ff --> -22 (Invalid argument)
wifiap: AP-DISABLED
hostapd_cleanup(hapd=0x558a43d5a1d0 (wifiap))
wifiap: CTRL-EVENT-TERMINATING
hostapd_free_hapd_data: Interface wifiap wasn't started
hostapd_interface_deinit_free: driver=0x558a4318ab20 drv_priv=0x558a43d5b5f0 -> hapd_deinit
nl80211: deinit ifname=wifiap disabled_11b_rates=0
nl80211: Disable Probe Request reporting nl_preq=0x8888dd02cb5e8f99
nl80211: Remove monitor interface: refcount=0
nl80211: Remove beacon (ifindex=3)
netlink: Operstate: ifindex=3 linkmode=0 (kernel-control), operstate=6 (IF_OPER_UP)
nl80211: Set mode ifindex 3 iftype 2 (STATION)
nl80211: Teardown AP(wifiap) - device_ap_sme=1 use_monitor=0
nl80211: Unsubscribe mgmt frames handle 0x8888dd02cb5d3869 (AP teardown (dev SME))
hostapd_interface_free(0x558a43d58bd0)
hostapd_interface_free: free hapd 0x558a43d5a1d0
hostapd_cleanup_iface(0x558a43d58bd0)
hostapd_cleanup_iface_partial(0x558a43d58bd0)
hostapd_cleanup_iface: free iface=0x558a43d58bd0
>lsusb
Bus 001 Device 004: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]
>iw phy0 info
Wiphy phy0
wiphy index: 0
max # scan SSIDs: 9
max scan IEs length: 2304 bytes
max # sched scan SSIDs: 0
max # match sets: 0
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP-128 (00-0f-ac:4)
* CMAC (00-0f-ac:6)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* AP
* P2P-client
* P2P-GO
Band 1:
Capabilities: 0x1963
RX LDPC
HT20/HT40
Static SM Power Save
RX HT20 SGI
RX HT40 SGI
RX STBC 1-stream
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 16 usec (0x07)
HT Max RX data rate: 300 Mbps
HT TX/RX MCS rate indexes supported: 0-15
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps
* 5.5 Mbps
* 11.0 Mbps
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 2412 MHz [1] (20.0 dBm)
* 2417 MHz [2] (20.0 dBm)
* 2422 MHz [3] (20.0 dBm)
* 2427 MHz [4] (20.0 dBm)
* 2432 MHz [5] (20.0 dBm)
* 2437 MHz [6] (20.0 dBm)
* 2442 MHz [7] (20.0 dBm)
* 2447 MHz [8] (20.0 dBm)
* 2452 MHz [9] (20.0 dBm)
* 2457 MHz [10] (20.0 dBm)
* 2462 MHz [11] (20.0 dBm)
* 2467 MHz [12] (20.0 dBm) (no IR)
* 2472 MHz [13] (20.0 dBm) (no IR)
* 2484 MHz [14] (disabled)
Band 2:
Capabilities: 0x1863
RX LDPC
HT20/HT40
Static SM Power Save
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 16 usec (0x07)
HT Max RX data rate: 300 Mbps
HT TX/RX MCS rate indexes supported: 0-15
VHT Capabilities (0x03d071b2):
Max MPDU length: 11454
Supported Channel Width: neither 160 nor 80+80
RX LDPC
short GI (80 MHz)
TX STBC
SU Beamformee
MU Beamformee
+HTC-VHT
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 867 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 867 Mbps
Bitrates (non-HT):
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 5180 MHz [36] (20.0 dBm)
* 5200 MHz [40] (20.0 dBm)
* 5220 MHz [44] (20.0 dBm)
* 5240 MHz [48] (20.0 dBm)
* 5260 MHz [52] (20.0 dBm) (radar detection)
* 5280 MHz [56] (20.0 dBm) (radar detection)
* 5300 MHz [60] (20.0 dBm) (radar detection)
* 5320 MHz [64] (20.0 dBm) (radar detection)
* 5500 MHz [100] (20.0 dBm) (radar detection)
* 5520 MHz [104] (20.0 dBm) (radar detection)
* 5540 MHz [108] (20.0 dBm) (radar detection)
* 5560 MHz [112] (20.0 dBm) (radar detection)
* 5580 MHz [116] (20.0 dBm) (radar detection)
* 5600 MHz [120] (20.0 dBm) (radar detection)
* 5620 MHz [124] (20.0 dBm) (radar detection)
* 5640 MHz [128] (20.0 dBm) (radar detection)
* 5660 MHz [132] (20.0 dBm) (radar detection)
* 5680 MHz [136] (30.0 dBm) (radar detection)
* 5700 MHz [140] (30.0 dBm) (radar detection)
* 5720 MHz [144] (disabled)
* 5745 MHz [149] (20.0 dBm)
* 5765 MHz [153] (20.0 dBm)
* 5785 MHz [157] (20.0 dBm)
* 5805 MHz [161] (20.0 dBm)
* 5825 MHz [165] (20.0 dBm)
* 5845 MHz [169] (disabled)
* 5865 MHz [173] (disabled)
* 5885 MHz [177] (disabled)
Supported commands:
* new_interface
* set_interface
* new_key
* start_ap
* new_station
* set_bss
* join_ibss
* set_pmksa
* del_pmksa
* flush_pmksa
* remain_on_channel
* frame
* set_channel
* connect
* disconnect
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0xd0
* managed: 0x40 0xb0 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
WoWLAN support:
* wake up on anything (device continues operating normally)
software interface modes (can always be added):
interface combinations are not supported
Device supports SAE with AUTHENTICATE command
Device supports scan flush.
Supported extended features:
