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alexdu
n00b
Joined: 25 Oct 2005
Posts: 49
Location: Moscow, Russia
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 Posted: Mon Sep 15, 2008 10:58 pm Post subject: Tricks for ipw2100; iwl4965 |
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Hi.
The next workarounds work for me just fine.
The general idea is simple - use wpa_supplicant to reconnect a WiFi device after power-off timeout or/and after any reason occasional signal lost from an AP.
ipw2100 + WEP/WPA/WPA2
Machine: IBM ThinkPad R40 with
| Quote: | | 02:02.0 Network controller: Intel Corporation PRO/Wireless LAN 2100 3B Mini PCI Adapter (rev 04) |
System: | Quote: | | Linux wax 2.6.24-tuxonice-r9 #3 PREEMPT Sun Sep 7 17:54:21 MSD 2008 i686 Intel(R) Pentium(R) M processor 1400MHz GenuineIntel GNU/Linux |
Kernel modules:
| Code: | Module Size Used by
ipw2100 65840 0
ieee80211_crypt_tkip 9536 1
ieee80211_crypt_ccmp 5824 1
thinkpad_acpi 43832 0
ieee80211 29960 1 ipw2100
ieee80211_crypt 4480 3 ieee80211_crypt_tkip,ieee80211_crypt_ccmp,ieee80211 |
Firmware: | Quote: | | Installed versions: net-wireless/ipw2100-firmware-1.3 |
N.B. I don't know if the firmware is really needed and used.
and some magic 
here example for WPA/WPA2
cat /etc/conf.d/net
| Code: | postup() {
sleep 1; /sinit/squid restart &
}
modules=( "wpa_supplicant" )
wpa_supplicant_eth1="-Dwext -c /etc/wpa_supplicant/wpa_supplicant.conf"
wpa_timeout_eth1="0"
associate_timeout_eth1="10" |
N.B. If you need some system service(s) to restart after WiFi device power flip - postup() is a good place to do it. /sinit/ is my symlink to /etc/init.d/. 'Sleep' and non-default timeouts are mandatory for some cards!
cat /etc/wpa_supplicant/wpa_supplicant.conf
| Code: | network={
ssid="-- your AP name here --"
psk="-- your pass here --"
priority=5
}
# This is a network block that connects to any unsecured access point.
# We give it a low priority so any defined blocks are preferred.
network={
key_mgmt=NONE
priority=-9999999
}
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=users
update_config=1
|
/var/log/messages example
| Code: | Sep 16 01:05:44 wax ipw2100: Intel(R) PRO/Wireless 2100 Network Driver, git-1.2.2
Sep 16 01:05:44 wax ipw2100: Copyright(c) 2003-2006 Intel Corporation
Sep 16 01:05:44 wax ACPI: PCI Interrupt 0000:02:02.0[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
Sep 16 01:05:44 wax ipw2100: Detected Intel PRO/Wireless 2100 Network Connection
Sep 16 01:05:51 wax wpa_cli: interface eth1 CONNECTED
Sep 16 01:36:40 wax wpa_cli: interface eth1 DISCONNECTED
Sep 16 01:36:43 wax wpa_cli: interface eth1 CONNECTED
Sep 16 01:40:01 wax cron[13871]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
Sep 16 01:42:40 wax wpa_cli: interface eth1 DISCONNECTED
Sep 16 01:42:43 wax wpa_cli: interface eth1 CONNECTED
Sep 16 01:50:01 wax cron[15041]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
Sep 16 01:51:40 wax wpa_cli: interface eth1 DISCONNECTED
Sep 16 01:51:43 wax wpa_cli: interface eth1 CONNECTED
Sep 16 01:57:40 wax wpa_cli: interface eth1 DISCONNECTED
Sep 16 01:57:43 wax wpa_cli: interface eth1 CONNECTED |
and so on...
If something goes wrong... I made a "repair WiFi button" Fn+F5 (this one for ThinkPad's hotkeys):
cat /etc/acpi/events/wifi
| Code: | event=ibm/hotkey HKEY 00000080 00001005
action=rmmod ipw2100 ; sleep 1; modprobe ipw2100
|
N.B. don't forget to run 'pkill -HUP acpid' after acpid rules update.
But it's unlucky case you will need it... I don't remember if I used this button after testing 
Suspend/Hibernate.
...with such schema - OTB for tuxonice-source.
iwl4965 + WEP/WPA/WPA2
The same... like that, but there are little differences.
Machine: lenovo ThinkPad X300 with
| Quote: | | 03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN Network Connection (rev 61) |
System: | Quote: | | Linux x300 2.6.24-tuxonice-r9 #7 SMP PREEMPT Sun Sep 7 15:39:25 MSD 2008 i686 Intel(R) Core(TM)2 Duo CPU L7100 @ 1.20GHz GenuineIntel GNU/Linux |
Kernel modules:
| Code: | Module Size Used by
iwl4965 99880 0
thinkpad_acpi 45760 0
|
Firmware: | Quote: | | Installed versions: net-wireless/iwl4965-ucode-4.44.1.20 |
N.B. I don't know if the firmware is really needed and used.
and also some magic
here example for WPA/WPA2
cat /etc/conf.d/net
| Code: | postup() {
sleep 3; /sinit/squid restart &
}
modules=( "wpa_supplicant" )
wpa_supplicant_wlan0="-w -Dwext -c /etc/wpa_supplicant/wpa_supplicant.conf"
wpa_timeout_wlan0="0"
associate_timeout_wlan0="10"
|
N.B. If you need some system service(s) to restart after WiFi device power flip - postup() is a good place to do it. /sinit/ is my symlink to /etc/init.d/. 'Sleep' and non-default timeouts are mandatory for some cards!
N.B.2. Here pay attention to "-w" wpa_supplicant option!
cat /etc/wpa_supplicant/wpa_supplicant.conf
just the same...
| Code: | network={
ssid="-- your AP name here --"
psk="-- your pass here --"
priority=5
}
# This is a network block that connects to any unsecured access point.
# We give it a low priority so any defined blocks are preferred.
network={
key_mgmt=NONE
priority=-9999999
}
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=users
update_config=1
|
/var/log/messages example
| Code: | Sep 15 11:51:04 x300 iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.1.17ks
Sep 15 11:51:04 x300 iwl4965: Copyright(c) 2003-2007 Intel Corporation
Sep 15 11:51:04 x300 ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 17 (level, low) -> IRQ 21
Sep 15 11:51:04 x300 PCI: Setting latency timer of device 0000:03:00.0 to 64
Sep 15 11:51:04 x300 iwl4965: Detected Intel Wireless WiFi Link 4965AGN
Sep 15 11:51:04 x300 iwl4965: Tunable channels: 13 802.11bg, 19 802.11a channels
Sep 15 11:51:04 x300 phy14: Selected rate control algorithm 'iwl-4965-rs'
Sep 15 11:51:07 x300 wlan0: Initial auth_alg=0
Sep 15 11:51:07 x300 wlan0: authenticate with AP 00:1b:11:67:99:dd
Sep 15 11:51:07 x300 wlan0: authenticate with AP 00:1b:11:67:99:dd
Sep 15 11:51:07 x300 wlan0: RX authentication from 00:1b:11:67:99:dd (alg=0 transaction=2 status=0)
Sep 15 11:51:07 x300 wlan0: authenticated
Sep 15 11:51:07 x300 wlan0: associate with AP 00:1b:11:67:99:dd
Sep 15 11:51:07 x300 wlan0: RX AssocResp from 00:1b:11:67:99:dd (capab=0x431 status=0 aid=41)
Sep 15 11:51:07 x300 wlan0: associated
Sep 15 11:51:07 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 11:51:09 x300 wpa_cli: interface wlan0 CONNECTED
Sep 15 11:51:15 x300 rc-scripts: Failed to configure wlan0 in the background
^^^ this one is not important, but if you will fix it - let me know, plz.
Sep 15 11:51:18 x300 squid[26417]: Squid Parent: child process 26420 started
^^^ services started
Sep 15 12:02:18 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 12:02:59 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 12:02:59 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 12:03:59 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 12:04:56 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 12:05:59 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 12:05:59 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 12:06:59 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
... then
Sep 15 13:42:12 x300 wlan0: RX disassociation from 00:1b:11:67:99:dd (reason=8)
Sep 15 13:42:12 x300 wlan0: disassociated
Sep 15 13:42:12 x300 wpa_cli: interface wlan0 DISCONNECTED
Sep 15 13:42:12 x300 squid[26417]: Squid Parent: child process 26420 exited with status 0
Sep 15 13:42:13 x300 wlan0: associate with AP 00:1b:11:67:99:dd
Sep 15 13:42:13 x300 wlan0: associate with AP 00:1b:11:67:99:dd
Sep 15 13:42:13 x300 wlan0: associate with AP 00:1b:11:67:99:dd
Sep 15 13:42:13 x300 wlan0: association with AP 00:1b:11:67:99:dd timed out
Sep 15 13:42:44 x300 wlan0: Initial auth_alg=0
Sep 15 13:42:44 x300 wlan0: authenticate with AP 00:1b:11:67:99:dd
Sep 15 13:42:44 x300 wlan0: RX deauthentication from 00:1b:11:67:99:dd (reason=7)
Sep 15 13:42:44 x300 wlan0: deauthenticated
Sep 15 13:42:44 x300 wlan0: RX authentication from 00:1b:11:67:99:dd (alg=0 transaction=2 status=0)
Sep 15 13:42:44 x300 wlan0: authenticated
Sep 15 13:42:44 x300 wlan0: associate with AP 00:1b:11:67:99:dd
Sep 15 13:42:44 x300 wlan0: Initial auth_alg=0
Sep 15 13:42:44 x300 wlan0: authenticate with AP 00:1b:11:67:99:dd
Sep 15 13:42:44 x300 wlan0: RX authentication from 00:1b:11:67:99:dd (alg=0 transaction=2 status=0)
Sep 15 13:42:44 x300 wlan0: authenticated
Sep 15 13:42:44 x300 wlan0: associate with AP 00:1b:11:67:99:dd
Sep 15 13:42:44 x300 wlan0: RX ReassocResp from 00:1b:11:67:99:dd (capab=0x31 status=0 aid=2)
Sep 15 13:42:44 x300 wlan0: associated
Sep 15 13:42:45 x300 wpa_cli: interface wlan0 CONNECTED
Sep 15 13:42:55 x300 squid[27933]: Squid Parent: child process 27935 started
Sep 15 13:46:27 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 13:46:43 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 13:46:44 x300 wlan0: CTS protection enabled (BSSID=00:1b:11:67:99:dd)
Sep 15 13:46:46 x300 wlan0: CTS protection disabled (BSSID=00:1b:11:67:99:dd)
Sep 15 13:50:27 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 13:54:28 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 13:56:27 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:00:28 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:03:27 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:07:28 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:09:27 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:13:28 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:15:27 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:17:16 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:19:27 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:23:28 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:25:27 x300 wlan0: switched to short barker preamble (BSSID=00:1b:11:67:99:dd)
Sep 15 14:29:28 x300 wlan0: switched to long barker preamble (BSSID=00:1b:11:67:99:dd)
...
|
and so on...
The "repair WiFi button" Fn+F5 (for ThinkPad's hotkeys) is also exists:
cat /etc/acpi/events/wifi
| Code: | event=ibm/hotkey HKEY 00000080 00001005
action=rmmod iwl4965 ; sleep 5; modprobe iwl4965 |
N.B. don't forget to run 'pkill -HUP acpid' after acpid rules update.
N.B.2. Note the 5 second delay, otherwise this won't works! 
But it's unlucky case you will need it...
Suspend/Hibernate.
Almost OTB for tuxonice-source. I added
| Code: | | UnloadModules iwl4965 |
to /etc/hibernate/common.conf, but not sure is it really needed.
* * *
So, have a try.
P.S.
For other devices I guess playing with timeouts, sleeps and "-w" might also gives some positive.
Update, 16 Sep 2008:
I use static IP and have no confirmation if it works with DHCP or not. I guess it should...
Update, 20 Sep 2008:
If your are trying to configure WiFi and use wpa_supplicant with "-w" option ("daemonize") note this: Gentoo networking scripts won't restart it (but start it at the first time), kill wpa_supplicant manually if you changed anything at net/wpa configs.
Last edited by alexdu on Sat Sep 20, 2008 11:12 am; edited 3 times in total |
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steveL
Watchman
Joined: 13 Sep 2006
Posts: 5153
Location: The Peanut Gallery
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| Posted: Thu Sep 18, 2008 7:40 am Post subject: |
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| Great post, alexdu :-) |
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