VLAN dynamic interface down

Bertrand Jacquin beber at meleeweb.net
Thu Aug 2 17:42:52 EDT 2012


Hi,

I've setup a small configuration to let hostapd created dynamic
interface using the dynamic_vlan functionality as the follow :

  logger_syslog=-1
  logger_syslog_level=1
  logger_stdout=-1
  logger_stdout_level=2
  dump_file=/var/run/hostapd-wlan0.dump
  ctrl_interface=/var/run/hostapd
  ctrl_interface_group=0
  interface=wlan0
  driver=nl80211
  ssid=Scabb Island
  ieee80211d=1
  country_code=FR
  hw_mode=g
  channel=1
  beacon_int=100
  dtim_period=10
  ignore_broadcast_ssid=0
  wmm_enabled=0
  auth_algs=1
  wpa=2
  wpa_passphrase=XXXXXX
  wpa_key_mgmt=WPA-PSK
  wpa_pairwise=CCMP

  dynamic_vlan=1
  vlan_file=/etc/hostapd/vlan.lst
  accept_mac_file=/etc/hostapd/accept.lst

/etc/hostapd/vlan.lst contain the following :

  *	vlan#

Interface vlanX is correctly created but remain DOWN :

  # ip link show dev vlan34
  44: vlan34: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
      link/ether 00:1b:b1:03:70:6a brd ff:ff:ff:ff:ff:ff

So hostapd fail to add STA to freshly created interface :

  nl80211: NL80211_ATTR_STA_VLAN (addr=5c:0a:5b:25:9d:a7 ifname=vlan34 vlan_id=34) failed: -100 (Network is down)
  wlan0: STA 5c:0a:5b:25:9d:a7 IEEE 802.11: could not bind the STA entry to vlan_id=34


If I manually set up iface vlan34, all is fine, but I would like not to
do this.

Looking for this on Google seems to explain that this dynamic iface
should be a bridge, but it's not :

  # ethtool -i vlan34
  driver: ath5k
  version: 3.1.10-allin1
  firmware-version: N/A
  bus-info: 0000:00:0c.0
  supports-statistics: no
  supports-test: no
  supports-eeprom-access: no
  supports-register-dump: no

Is something wrong ? I'm using hostapd v1.0 :

  # hostapd -v
  hostapd v1.0
  User space daemon for IEEE 802.11 AP management,
  IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator
  Copyright (c) 2002-2012, Jouni Malinen <j at w1.fi> and contributors

I include a log file generated by launching hostapd as the follow :

  # hostapd -dd -K -P /var/run/hostapd-wlan0.pid /etc/hostapd/wlan0.conf

I volontary suppressed all 'Add randomness' lines as really annoying and also masked PSK.

Regards,

-- 
Beber
-------------- next part --------------
random: Trying to read entropy from /dev/random
Configuration file: /etc/hostapd/wlan0.conf
ctrl_interface_group=0
nl80211: interface wlan0 in phy phy0
rfkill: Cannot open RFKILL control device
nl80211: RFKILL status not available
nl80211: Using driver-based off-channel TX
nl80211: Add own interface ifindex 5
nl80211: Set mode ifindex 5 iftype 3 (AP)
nl80211: Create interface iftype 6 (MONITOR)
nl80211: New interface mon.wlan0 created: ifindex=43
nl80211: Add own interface ifindex 43
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: 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: 1  Frequency: 2412 MHz
nl80211: Set freq 2412 (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=5 alg=0 addr=(nil) key_idx=0 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=5 alg=0 addr=(nil) key_idx=1 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=5 alg=0 addr=(nil) key_idx=2 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=5 alg=0 addr=(nil) key_idx=3 set_tx=0 seq_len=0 key_len=0
Using interface wlan0 with hwaddr 00:1b:b1:03:70:6a and ssid 'Scabb Island'
Deriving WPA PSK based on passphrase
SSID - hexdump_ascii(len=12):
     53 63 61 62 62 20 49 73 6c 61 6e 64               Scabb Island    
PSK (ASCII passphrase) - hexdump_ascii(len=8):
     XXXXX MASKED XXXX
PSK (from passphrase) - hexdump(len=32): XXXXX MASKED XXXX
random: Cannot read from /dev/random: Resource temporarily unavailable
random: Got 0/20 bytes from /dev/random
random: Only 0/20 bytes of strong random data available from /dev/random
random: Not enough entropy pool available for secure operations
WPA: Not enough entropy in random pool for secure operations - update keys later when the first station connects
Get randomness: len=32 entropy=0
GMK - hexdump(len=32): XXXXX MASKED XXXX
Get randomness: len=32 entropy=0
Key Counter - hexdump(len=32): XXXXX MASKED XXXX
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): XXXXX MASKED XXXX
WPA: group state machine entering state SETKEYSDONE (VLAN-ID 0)
wpa_driver_nl80211_set_key: ifindex=5 alg=3 addr=0x80aa754 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 'wlan0' added
nl80211: if_removed already cleared - ignore event
mgmt::deauth cb
mgmt::auth
authentication: STA=5c:0a:5b:25:9d:a7 auth_alg=0 auth_transaction=1 status_code=0 wep=0
  New STA
wlan0: STA 5c:0a:5b:25:9d:a7 RADIUS: VLAN ID 34
wlan0: STA 5c:0a:5b:25:9d:a7 IEEE 802.11: authentication OK (open system)
wlan0: STA 5c:0a:5b:25:9d:a7 MLME: MLME-AUTHENTICATE.indication(5c:0a:5b:25:9d:a7, OPEN_SYSTEM)
wlan0: STA 5c:0a:5b:25:9d:a7 MLME: MLME-DELETEKEYS.request(5c:0a:5b:25:9d:a7)
authentication reply: STA=5c:0a:5b:25:9d:a7 auth_alg=0 auth_transaction=2 resp=0 (IE len=0)
mgmt::auth cb
wlan0: STA 5c:0a:5b:25:9d:a7 IEEE 802.11: authenticated
mgmt::assoc_req
association request: STA=5c:0a:5b:25:9d:a7 capab_info=0x431 listen_interval=10
  new AID 1
wlan0: STA 5c:0a:5b:25:9d:a7 IEEE 802.11: association OK (aid 1)
mgmt::assoc_resp cb
wlan0: STA 5c:0a:5b:25:9d:a7 IEEE 802.11: associated (aid 1)
wlan0: STA 5c:0a:5b:25:9d:a7 MLME: MLME-ASSOCIATE.indication(5c:0a:5b:25:9d:a7)
wlan0: STA 5c:0a:5b:25:9d:a7 MLME: MLME-DELETEKEYS.request(5c:0a:5b:25:9d:a7)
wpa_driver_nl80211_set_key: ifindex=5 alg=0 addr=0x8a4bba0 key_idx=0 set_tx=1 seq_len=0 key_len=0
   addr=5c:0a:5b:25:9d:a7
VLAN: vlan_add_dynamic(vlan_id=34 ifname=vlan#)
nl80211: Create interface iftype 4 (unknown)
nl80211: New interface vlan34 created: ifindex=44
nl80211: Add own interface ifindex 44
wlan0: STA 5c:0a:5b:25:9d:a7 IEEE 802.11: added new dynamic VLAN interface 'vlan34'
wlan0: STA 5c:0a:5b:25:9d:a7 IEEE 802.11: binding station to interface 'vlan34'
WPA: Add group state machine for VLAN-ID 34
random: Cannot read from /dev/random: Resource temporarily unavailable
random: Got 0/20 bytes from /dev/random
random: Only 0/20 bytes of strong random data available from /dev/random
random: Not enough entropy pool available for secure operations
WPA: Not enough entropy in random pool for secure operations - update keys later when the first station connects
Get randomness: len=32 entropy=154
GMK - hexdump(len=32): XXXXX MASKED XXXX
Get randomness: len=32 entropy=122
Key Counter - hexdump(len=32): XXXXX MASKED XXXX
WPA: group state machine entering state GTK_INIT (VLAN-ID 34)
Get randomness: len=16 entropy=90
GTK - hexdump(len=16): XXXXX MASKED XXXX
WPA: group state machine entering state SETKEYSDONE (VLAN-ID 34)
wpa_driver_nl80211_set_key: ifindex=44 alg=3 addr=0x80aa754 key_idx=1 set_tx=1 seq_len=0 key_len=16
   broadcast key
nl80211: set_key failed; err=-100 Network is down)
WPA: Moving STA 5c:0a:5b:25:9d:a7 to use group state machine for VLAN ID 34
nl80211: NL80211_ATTR_STA_VLAN (addr=5c:0a:5b:25:9d:a7 ifname=vlan34 vlan_id=34) failed: -100 (Network is down)
wlan0: STA 5c:0a:5b:25:9d:a7 IEEE 802.11: could not bind the STA entry to vlan_id=34
RTM_NEWLINK: operstate=1 ifi_flags=0x1002 ()
nl80211: Ignore interface down event since interface vlan34 is up
RTM_NEWLINK: operstate=1 ifi_flags=0x1002 ()
nl80211: Ignore interface down event since interface vlan34 is up
nl80211: Event message available
nl80211: New station 5c:0a:5b:25:9d:a7
mgmt::disassoc
disassocation: STA=5c:0a:5b:25:9d:a7 reason_code=8
wlan0: STA 5c:0a:5b:25:9d:a7 WPA: event 2 notification
wpa_driver_nl80211_set_key: ifindex=5 alg=0 addr=0x8a4bba0 key_idx=0 set_tx=1 seq_Killed by signal 2.
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