Date: Wed, 08 Apr 2009 09:52:31 -0400 From: Boris Kochergin <spawk@acm.poly.edu> To: freebsd-net@freebsd.org Subject: Multi-BSS problem with Atheros 5212 Message-ID: <49DCAC1F.9000708@acm.poly.edu>
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Ahoy. I'm having trouble with multiple hostap-mode wlan pseudo-devices. The machine is an 8-CURRENT from yesterday: # uname -a FreeBSD test 8.0-CURRENT FreeBSD 8.0-CURRENT #0: Tue Apr 7 16:54:56 UTC 2009 root@test:/usr/obj/usr/src/sys/GENERIC i386 # dmesg | grep ath ath0: <Atheros 5212> mem 0xf4100000-0xf410ffff irq 11 at device 13.0 on pci0 ath0: [ITHREAD] ath0: AR2413 mac 7.9 RF2413 phy 4.5 # cat /etc/rc.conf wlans_ath0="wlan0 wlan1 wlan2" create_args_wlan0="wlanmode hostap bssid" create_args_wlan1="wlanmode hostap bssid" create_args_wlan2="wlanmode hostap bssid" ifconfig_wlan0="ssid wlan0 wepmode off up" ifconfig_wlan1="ssid wlan1 wepmode off up" ifconfig_wlan2="ssid wlan2 wepmode off up" # ifconfig ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 2290 ether 00:18:e7:33:5e:24 media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap> status: running fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=8<VLAN_MTU> ether 00:90:27:72:c4:f3 inet 10.0.0.128 netmask 0xffffff00 broadcast 10.0.0.255 media: Ethernet autoselect (100baseTX <full-duplex>) status: active lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 options=3<RXCSUM,TXCSUM> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3 inet6 ::1 prefixlen 128 inet 127.0.0.1 netmask 0xff000000 wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether 00:18:e7:33:5e:24 media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap> status: running ssid wlan0 channel 11 (2462 Mhz 11g) bssid 00:18:e7:33:5e:24 country US ecm authmode OPEN privacy OFF txpower 23 scanvalid 60 protmode CTS wme burst dtimperiod 1 -dfs wlan1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether 06:18:e7:33:5e:24 media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap> status: running ssid wlan1 channel 11 (2462 Mhz 11g) bssid 06:18:e7:33:5e:24 country US ecm authmode OPEN privacy OFF txpower 23 scanvalid 60 protmode CTS wme burst dtimperiod 1 -dfs wlan2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether 0a:18:e7:33:5e:24 media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap> status: running ssid wlan2 channel 11 (2462 Mhz 11g) bssid 0a:18:e7:33:5e:24 country US ecm authmode OPEN privacy OFF txpower 23 scanvalid 60 protmode CTS wme burst dtimperiod 1 -dfs The client is a 7.0 machine with another 5212 card: # uname -a FreeBSD peer 7.0-RELEASE-p10 FreeBSD 7.0-RELEASE-p10 #0: Mon Mar 23 09:26:18 EDT 2009 root@peer:/usr/obj/usr/src/sys/PEER i386 # dmesg | grep ath ath_hal: 0.10.5.6 (AR5210, AR5211, AR5212, AR5416, RF5111, RF5112, RF2413, RF5413, RF2133, RF2425, RF2417) ath0: <Atheros 5212> mem 0xa8410000-0xa841ffff irq 11 at device 0.0 on cardbus0 ath0: [ITHREAD] ath0: using obsoleted if_watchdog interface ath0: Ethernet address: 00:14:d1:42:21:5a ath0: mac 7.9 phy 4.5 radio 5.6 The three SSIDs configured on the CURRENT machine show up in a scan: # ifconfig ath0 scan | grep wlan wlan0 00:18:e7:33:5e:24 11 54M -66:-93 100 ES WME wlan1 06:18:e7:33:5e:24 11 54M -65:-93 100 ES WME wlan2 0a:18:e7:33:5e:24 11 54M -65:-93 100 ES WME The client is only able to associate with wlan1, however. When scanning channels while attempting to associate with any of the other ones, it gets stuck on channel 11 for a while before moving on, which seems relevant. Also interesting is the fact that if i do "ifconfig ath0 down" on the CURRENT machine, followed by, for example, "ifconfig ath0 ssid wlan0" (which did not associate before) on the client, followed by "ifconfig ath0 up" on the CURRENT machine, the client will associate with wlan0, but will not be able to associate with wlan1 or wlan2. Any ideas? -Boris
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