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#1 2012-11-20 13:54:26

Karnash
Member
Registered: 2011-06-02
Posts: 9

[resolved] No SSID showing up with hostapd on a MacBook Pro

[EDIT] This isssue resolved itself after a while. Some reboot.

Hi,

I am trying to setup an access point on my MacBook Pro running ArchLinux. I followed this documentation. Sadly, when I run hostapd, the ssid is not showing up on my mobile devices.

I searched a bit on the bbs and google but it seams that a lot of problems came after, when connecting to the wifi network from the device.

Maybe you could help me?

# iw list
Wiphy phy0
	Band 1:
		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) (passive scanning, no IBSS)
			* 2472 MHz [13] (20.0 dBm) (passive scanning, no IBSS)
			* 2484 MHz [14] (20.0 dBm) (passive scanning, no IBSS)
		Bitrates (non-HT):
			* 1.0 Mbps
			* 2.0 Mbps (short preamble supported)
			* 5.5 Mbps (short preamble supported)
			* 11.0 Mbps (short preamble supported)
			* 6.0 Mbps
			* 9.0 Mbps
			* 12.0 Mbps
			* 18.0 Mbps
			* 24.0 Mbps
			* 36.0 Mbps
			* 48.0 Mbps
			* 54.0 Mbps
	max # scan SSIDs: 4
	max scan IEs length: 2285 bytes
	Coverage class: 0 (up to 0m)
	Supported Ciphers:
		* WEP40 (00-0f-ac:1)
		* WEP104 (00-0f-ac:5)
		* TKIP (00-0f-ac:2)
		* CCMP (00-0f-ac:4)
	Available Antennas: TX 0 RX 0
	Supported interface modes:
		 * IBSS
		 * managed
		 * AP
		 * AP/VLAN
		 * WDS
		 * monitor
		 * mesh point
	software interface modes (can always be added):
		 * AP/VLAN
		 * monitor
	interface combinations are not supported
	Supported commands:
		 * new_interface
		 * set_interface
		 * new_key
		 * start_ap
		 * new_station
		 * new_mpath
		 * set_mesh_config
		 * set_bss
		 * authenticate
		 * associate
		 * deauthenticate
		 * disassociate
		 * join_ibss
		 * join_mesh
		 * set_tx_bitrate_mask
		 * frame
		 * frame_wait_cancel
		 * set_wiphy_netns
		 * set_channel
		 * set_wds_peer
		 * probe_client
		 * set_noack_map
		 * register_beacons
		 * 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
		 * mesh point: 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: 0xb0 0xc0 0xd0
		 * managed: 0x40 0xd0
		 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * mesh point: 0xb0 0xc0 0xd0
		 * P2P-client: 0x40 0xd0
		 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
	Device supports RSN-IBSS.
	HT Capability overrides:
		 * MCS: ff ff ff ff ff ff ff ff ff ff
		 * maximum A-MSDU length
		 * supported channel width
		 * short GI for 40 MHz
		 * max A-MPDU length exponent
		 * min MPDU start spacing
	Device supports TX status socket option.
	Device supports HT-IBSS.
# cat /etc/hostapd/hostapd.conf
interface=wlan0
bridge=br0
driver=nl80211
logger_stdout=-1
logger_stdout_level=2
ssid=testAP
hw_mode=g
channel=6
auth_algs=3
max_num_sta=255
wpa=2
wpa_passphrase=tryyourbest
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP CCMP
rsn_pairwise=CCMP
# cat /etc/network.d/bridge
INTERFACE="br0"
CONNECTION="bridge"
DESCRIPTION="Bridge wired and wireless connection"
BRIDGE_INTERFACES="eth0"
IP="dhcp"

I start hostapd like this:

# netcfg up bridge
# hostapd -dd /etc/hostapd/hostapd.conf

random: Trying to read entropy from /dev/random
Configuration file: /etc/hostapd/hostapd.conf
nl80211: interface wlan0 in phy phy0
rfkill: initial event: idx=0 type=1 op=0 soft=0 hard=0
rfkill: initial event: idx=1 type=2 op=0 soft=0 hard=0
nl80211: Using driver-based off-channel TX
nl80211: Add own interface ifindex 51
nl80211: Add own interface ifindex 3
nl80211: Set mode ifindex 3 iftype 3 (AP)
nl80211: Create interface iftype 6 (MONITOR)
nl80211: New interface mon.wlan0 created: ifindex=56
nl80211: Add own interface ifindex 56
nl80211: Adding interface wlan0 into bridge br0
BSS count 1, BSSID mask 00:00:00:00:00:00 (0 bits)
nl80211: Regulatory information - country=00
nl80211: 2402-2472 @ 40 MHz
nl80211: 2457-2482 @ 20 MHz
nl80211: 2474-2494 @ 20 MHz
nl80211: 5170-5250 @ 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=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=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
Completing interface initialization
Mode: IEEE 802.11g  Channel: 6  Frequency: 2437 MHz
nl80211: Set freq 2437 (ht_enabled=0 sec_channel_offset=0)
RATE[0] rate=10 flags=0x1
RATE[1] rate=20 flags=0x1
RATE[2] rate=55 flags=0x1
RATE[3] rate=110 flags=0x1
RATE[4] rate=60 flags=0x0
RATE[5] rate=90 flags=0x0
RATE[6] rate=120 flags=0x0
RATE[7] rate=180 flags=0x0
RATE[8] rate=240 flags=0x0
RATE[9] rate=360 flags=0x0
RATE[10] rate=480 flags=0x0
RATE[11] rate=540 flags=0x0
Flushing old station entries
Deauthenticate all stations
wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=(nil) key_idx=0 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=(nil) key_idx=1 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=(nil) key_idx=2 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=(nil) key_idx=3 set_tx=0 seq_len=0 key_len=0
Using interface wlan0 with hwaddr aa:aa:aa:aa:aa:aa and ssid 'testAP'
Deriving WPA PSK based on passphrase
SSID - hexdump_ascii(len=6):
     74 65 73 74 41 50                                 testAP          
PSK (ASCII passphrase) - hexdump_ascii(len=11): [REMOVED]
PSK (from passphrase) - hexdump(len=32): [REMOVED]
random: Got 20/20 bytes from /dev/random
Get randomness: len=32 entropy=0
GMK - hexdump(len=32): [REMOVED]
Get randomness: len=32 entropy=0
Key Counter - hexdump(len=32): [REMOVED]
WPA: Delay group state machine start until Beacon frames have been configured
nl80211: Set beacon (beacon_set=0)
WPA: Start group state machine to set initial keys
WPA: group state machine entering state GTK_INIT (VLAN-ID 0)
Get randomness: len=16 entropy=0
GTK - hexdump(len=16): [REMOVED]
WPA: group state machine entering state SETKEYSDONE (VLAN-ID 0)
wpa_driver_nl80211_set_key: ifindex=3 alg=3 addr=0x462eea key_idx=1 set_tx=1 seq_len=0 key_len=16
   broadcast key
wpa_driver_nl80211_set_operstate: operstate 0->1 (UP)
netlink: Operstate: linkmode=-1, operstate=6
wlan0: Setup of interface done.
RTM_NEWLINK: operstate=1 ifi_flags=0x1002 ()
nl80211: Ignore interface down event since interface mon.wlan0 is up
RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface 'mon.wlan0' added
Unknown event 5
RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface 'br0' added
Unknown event 5
RTM_NEWLINK: operstate=1 ifi_flags=0x1002 ()
nl80211: Ignore interface down event since interface wlan0 is up
RTM_NEWLINK: operstate=1 ifi_flags=0x1003 ([UP])
RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added
nl80211: if_removed already cleared - ignore event
RTM_NEWLINK: operstate=1 ifi_flags=0x1003 ([UP])
RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added
nl80211: if_removed already cleared - ignore event
nl80211: Add ifindex 51 for bridge br0
nl80211: Add own interface ifindex 51
RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added
nl80211: if_removed already cleared - ignore event
nl80211: Add ifindex 51 for bridge br0
nl80211: Add own interface ifindex 51
RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added
nl80211: if_removed already cleared - ignore event
nl80211: Add ifindex 51 for bridge br0
nl80211: Add own interface ifindex 51
RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added
nl80211: if_removed already cleared - ignore event
nl80211: Add ifindex 51 for bridge br0
nl80211: Add own interface ifindex 51
RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added
nl80211: if_removed already cleared - ignore event
mgmt::deauth cb

^C

Signal 2 received - terminating
Flushing old station entries
Deauthenticate all stations
nl80211: Remove interface ifindex=56
netlink: Operstate: linkmode=0, operstate=6
nl80211: Set mode ifindex 3 iftype 2 (STATION)

While hostapd is running, I have the following interfaces:

# iwconfig
mon.wlan0  IEEE 802.11bg  Mode:Monitor  Frequency:2.437 GHz  Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          
wlan0     IEEE 802.11bg  Mode:Master  Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          
# ifconfig
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.206.107  netmask 255.255.255.0  broadcast 192.168.206.255
        inet6 fe80::ca2a:14ff:fe10:e653  prefixlen 64  scopeid 0x20<link>
        inet6 2a00:4b00:13c:cc:ca2a:14ff:fe10:e653  prefixlen 64  scopeid 0x0<global>
        ether aa:aa:aa:aa:aa:aa  txqueuelen 0  (Ethernet)
        RX packets 13229  bytes 3731876 (3.5 MiB)
        RX errors 0  dropped 68  overruns 0  frame 0
        TX packets 3128  bytes 350349 (342.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth0: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST>  mtu 1500
        inet6 fe80::ca2a:14ff:fe10:e653  prefixlen 64  scopeid 0x20<link>
        ether aa:aa:aa:aa:aa:aa  txqueuelen 1000  (Ethernet)
        RX packets 23731  bytes 4928093 (4.6 MiB)
        RX errors 0  dropped 58  overruns 0  frame 0
        TX packets 3142  bytes 364415 (355.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 16436
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 137833  bytes 161834849 (154.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 137833  bytes 161834849 (154.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

mon.wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        unspec aa-aa-aa-aa-aa-aa-00-22-00-00-00-00-00-00-00-00  txqueuelen 1000  (UNSPEC)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.1  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::e2f8:47ff:fe2f:842  prefixlen 64  scopeid 0x20<link>
        ether aa:aa:aa:aa:aa:aa  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 21511  bytes 3497730 (3.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Am I missing something?

Last edited by Karnash (2013-01-07 09:06:19)

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#2 2012-11-27 06:27:58

mehta_4v
Member
Registered: 2012-11-27
Posts: 5

Re: [resolved] No SSID showing up with hostapd on a MacBook Pro

HI,

  I am facing the same problem. When I start the hostapd I do egt the interfaces in the Master mode but no ssid is assigned to it even if it is mentioned in the hostapd.conf.

  Did you get any solution to your problem ?
  Does anybody else have any idea ?

- Charvi.

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#3 2012-11-27 10:39:30

mehta_4v
Member
Registered: 2012-11-27
Posts: 5

Re: [resolved] No SSID showing up with hostapd on a MacBook Pro

And yes this is not for the MacBook. I am using on dm6446 processor with custom hardware. I could get the AP to work previously with hostapd when i used
driver=rtl871xdrv
but then I compiled with the netlink driver (for some reasons)
driver=nl80211
and now I get two interfaces instead of one (as was with the previous case) wlan1 and mon.wlan1 but no ssid is associated to any of these. I also checked if it was hidden network or something but nothing like that, the ssid just doent seem to be set up. When I start hostapd with the -dd switch in the logs I do see this:

Using interface wlan1 with hwaddr 00:21:2f:3a:b8:fe and ssid 'rtwap'

But iwconfig doesn't give the ssid wiht the interfaces .. sad

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#4 2012-11-28 09:15:34

Karnash
Member
Registered: 2011-06-02
Posts: 9

Re: [resolved] No SSID showing up with hostapd on a MacBook Pro

No, I don't have a solution yet... I don't have much knowledge in this area, so I can't figure out a solution on my own.

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