Linux Personalizado CRDA WiFi regulatory.bin e 40 MHz BW 5GHz Canais

Question

Estou criando meu próprio regulatory.bin para o CRDA no Linux. Usando meu regulatory.bin personalizado, quero ser capaz de criar meu próprio hotspot com hostapd para qualquer um dos canais BW de 5GHz, 20MHz ou 40MHz.

Estou preocupado com 5GHz (não 2,4 GHz) e atualmente tenho todos os canais BW de 20MHz funcionando. Agora quero que os canais de 40 MHz funcionem.

Até agora, para canais de 40 MHz BW, eu só posso fazer o hostapd criar um hotspot usando os canais 38 e 46. Se eu tentar ir mais alto que isso (54,62,102,110,118,126,134,142,151, ou 159), hostapd reclama que os canais não estão na lista suportada com base nos canais permitidos do CRDA.

Isso está correto porque os canais permitidos impressos pelo hostapd não incluem esses canais superiores de 40 MHz.

No entanto, acho que deve funcionar porque o meu CRDA personalizado inclui as freqüências corretas e os parâmetros do BW para incluir os canais de 40 MHz:

country FK:
    (2402 - 2472 @ 40), (30)
    (2474 - 2494 @ 20), (20), NO-OFDM
    (5170 - 5250 @ 80), (17)
    (5170 - 5210 @ 40), (20) 
    (5210 - 5250 @ 40), (20)
    (5250 - 5290 @ 40), (20)
    (5290 - 5330 @ 40), (20)
    (5250 - 5330 @ 80), (23) 
    (5250 - 5350 @ 80), (100 mW) 
    (5470 - 5725 @ 80), (1000 mW)
    (5735 - 5835 @ 80), (30)

Quando inicio o hostapd para criar meu hotspot WiFi, as impressões de depuração mostram o seguinte como canais selecionáveis com base na minha entrada personalizada do CRDA:

Allowed channel: mode=1 chan=1 freq=2412 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=2 freq=2417 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=3 freq=2422 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=4 freq=2427 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=5 freq=2432 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=6 freq=2437 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=7 freq=2442 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=8 freq=2447 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=9 freq=2452 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=10 freq=2457 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=11 freq=2462 MHz max_tx_power=30 dBm
Allowed channel: mode=1 chan=14 freq=2484 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=36 freq=5180 MHz max_tx_power=17 dBm
Allowed channel: mode=2 chan=38 freq=5190 MHz max_tx_power=17 dBm
Allowed channel: mode=2 chan=40 freq=5200 MHz max_tx_power=17 dBm
Allowed channel: mode=2 chan=42 freq=5210 MHz max_tx_power=17 dBm
Allowed channel: mode=2 chan=44 freq=5220 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=46 freq=5230 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=52 freq=5260 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=56 freq=5280 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=60 freq=5300 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=64 freq=5320 MHz max_tx_power=20 dBm
Allowed channel: mode=2 chan=100 freq=5500 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=104 freq=5520 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=108 freq=5540 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=112 freq=5560 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=116 freq=5580 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=120 freq=5600 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=124 freq=5620 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=128 freq=5640 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=132 freq=5660 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=136 freq=5680 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=140 freq=5700 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=149 freq=5745 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=153 freq=5765 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=157 freq=5785 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=161 freq=5805 MHz max_tx_power=30 dBm
Allowed channel: mode=2 chan=165 freq=5825 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=1 freq=2412 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=2 freq=2417 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=3 freq=2422 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=4 freq=2427 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=5 freq=2432 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=6 freq=2437 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=7 freq=2442 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=8 freq=2447 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=9 freq=2452 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=10 freq=2457 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=11 freq=2462 MHz max_tx_power=30 dBm
Allowed channel: mode=0 chan=14 freq=2484 MHz max_tx_power=20 dBm

Meu arquivo de configuração hostapd se parece com:

# This is the name of the WiFi interface we configured above
interface=wlan1

# This is the name of the network
ssid=asdfasfd

# The network passphrase
wpa_passphrase=asdfasdf

# Use Settings that work for iOS / Android / Windows
driver=nl80211
logger_syslog=-1
logger_syslog_level=2
logger_stdout=-1
logger_stdout_level=2
country_code=FK

hw_mode=a
channel=54

#ieee80211n=1
#ht_capab=[HT40+]

beacon_int=100
dtim_period=2
max_num_sta=20
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wmm_enabled=1
wmm_ac_bk_cwmin=4
wmm_ac_bk_cwmax=10
wmm_ac_bk_aifs=7
wmm_ac_bk_txop_limit=0
wmm_ac_bk_acm=0
wmm_ac_be_aifs=3
wmm_ac_be_cwmin=4
wmm_ac_be_cwmax=10
wmm_ac_be_txop_limit=0
wmm_ac_be_acm=0
wmm_ac_vi_aifs=2
wmm_ac_vi_cwmin=3
wmm_ac_vi_cwmax=4
wmm_ac_vi_txop_limit=94
wmm_ac_vi_acm=0
wmm_ac_vo_aifs=2
wmm_ac_vo_cwmin=2
wmm_ac_vo_cwmax=3
wmm_ac_vo_txop_limit=47
wmm_ac_vo_acm=0
eapol_key_index_workaround=0
own_ip_addr=127.0.0.1

wpa=3
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP CCMP
rsn_pairwise=CCMP

O que devo fazer na configuração do meu CRDA para obter os 40 canais restantes do BW com hostapd? Obrigado.

    

Answer 1

Nevermind, eu tenho isso para trabalhar - parece que você tem que especificar [HT40-] na configuração hostapd, bem como o número do canal de 20MHz superior que é unido para criar o canal de 40 MHz.