Re: unable to set iwlwifi master mode

[Larry Finger <Larry.Finger@lwfinger.net>]

On 11/30/2013 11:26 AM, devendra.aaru wrote:
> Hello,
>
> I was trying to use my intel wireless device as an AP. I used hostapd (1.1).
>
> It seem to be that i couldn't able to get it working.
>
> My hostapd config:
>
> interface=wlp3s0
> driver=nl80211
> country_code=US
> ieee80211d=1
> ssid=testhostapd
> channel=1
> hw_mode=g
> auth_algs=1
> wpa=3
> wpa_passphrase=mypassword
> wpa_key_mgmt=WPA-PSK
> wpa_pairwise=TKIP CCMP
> rsn_pairwise=CCMP
>
> I have got the following output when i run hostapd -ddd hostapd.conf
>
> random: Trying to read entropy from /dev/random
> Configuration file: 1
> nl80211: interface wlp3s0 in phy phy0
> rfkill: initial event: idx=0 type=1 op=0 soft=0 hard=0
> nl80211: Using driver-based off-channel TX
> nl80211: Register frame command failed (type=208): ret=-114 (Operation
> already in progress)
> nl80211: Register frame match - hexdump(len=1): 06
> nl80211: Failed to register Action frame processing - ignore for now
> nl80211: Add own interface ifindex 3
> nl80211: Set mode ifindex 3 iftype 3 (AP)
> nl80211: Failed to set interface 3 to mode 3: -95 (Operation not supported)
> nl80211: Interface already in requested mode - ignore error
> nl80211: Create interface iftype 6 (MONITOR)
> nl80211: New interface mon.wlp3s0 created: ifindex=15
> nl80211: Add own interface ifindex 15
> BSS count 1, BSSID mask 00:00:00:00:00:00 (0 bits)
> nl80211: Regulatory information - country=US
> nl80211: 2402-2472 @ 40 MHz
> nl80211: 5170-5250 @ 40 MHz
> nl80211: 5250-5330 @ 40 MHz
> nl80211: 5490-5600 @ 40 MHz
> nl80211: 5650-5710 @ 40 MHz
> nl80211: 5735-5835 @ 40 MHz
> nl80211: 57240-63720 @ 2160 MHz
> nl80211: Added 802.11b mode based on 802.11g information
> Allowed channel: mode=1 chan=1 freq=2412 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=2 freq=2417 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=3 freq=2422 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=4 freq=2427 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=5 freq=2432 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=6 freq=2437 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=7 freq=2442 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=8 freq=2447 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=9 freq=2452 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=10 freq=2457 MHz max_tx_power=14 dBm
> Allowed channel: mode=1 chan=11 freq=2462 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=1 freq=2412 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=2 freq=2417 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=3 freq=2422 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=4 freq=2427 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=5 freq=2432 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=6 freq=2437 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=7 freq=2442 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=8 freq=2447 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=9 freq=2452 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=10 freq=2457 MHz max_tx_power=14 dBm
> Allowed channel: mode=0 chan=11 freq=2462 MHz max_tx_power=14 dBm
> Completing interface initialization
> Mode: IEEE 802.11g  Channel: 1  Frequency: 2412 MHz
> nl80211: Set freq 2412 (ht_enabled=0 sec_channel_offset=0)
> nl80211: Failed to set channel (freq=2412): -16 (Device or resource busy)
> Could not set channel for kernel driver
> wlp3s0: Unable to setup interface.
> Flushing old station entries
> Could not connect to kernel driver.
> Deauthenticate all stations
> nl80211: Remove interface ifindex=15
> netlink: Operstate: linkmode=0, operstate=6
> nl80211: Set mode ifindex 3 iftype 2 (STATION)
>
> -------------------------------------------x------------------------------------
> Seems that the setting of channel is failing
>
> and i tried with iwconfig wlp3s0 channel 6. It says
>
> Error for wireless request "Set Frequency" (8B04) :
>      SET failed on device wlp3s0 ; Device or resource busy.
>
> What could be the possible mistake?
>
> in case:
>
> lspci -v output:
>
> 03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000
> [Condor Peak]
> Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN
> Flags: bus master, fast devsel, latency 0, IRQ 45
> Memory at f2400000 (64-bit, non-prefetchable) [size=8K]
> Capabilities: [c8] Power Management version 3
> Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Capabilities: [e0] Express Endpoint, MSI 00
> Capabilities: [100] Advanced Error Reporting
> Capabilities: [140] Device Serial Number 00-26-c7-ff-ff-51-11-1a
> Kernel driver in use: iwlwifi

Are you using hostapd v2.0? If so, there seems to be a bug that breaks *ALL* 
nl80211 configurations. I reported it, but so far there is no response.

Switching back to v1.1 of hostapd worked for me.

Larry