Re: [Halevt-dev] Wifi killswitch events

[Patrice Dumas]

On Tue, Jan 26, 2010 at 09:56:11AM -0500, Ben Rich wrote:
> Hi,
> 
> $ hal-device /org/freedesktop/Hal/devices/pci_8086_84_rfkill_phy1_wlan
> udi = '/org/freedesktop/Hal/devices/pci_8086_84_rfkill_phy1_wlan'
>   info.vendor = 'Intel Corporation'  (string)
>   linux.hotplug_type = 2  (0x2)  (int)
>   linux.subsystem = 'rfkill'  (string)
>   info.interfaces = { 'org.freedesktop.Hal.Device.KillSwitch' } (string list)
>   killswitch.type = 'wlan'  (string)
>   killswitch.state = 1  (0x1)  (int)
>   killswitch.access_method = 'rfkill'  (string)
>   killswitch.name = 'phy1'  (string)
>   info.subsystem = 'rfkill'  (string)
>   info.product = 'phy1 wlan Killswitch'  (string)
>   linux.sysfs_path =
> '/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/ieee80211/phy1/rfkill1'
>  (string)
>   info.parent = '/org/freedesktop/Hal/devices/pci_8086_84'  (string)
>   info.udi = '/org/freedesktop/Hal/devices/pci_8086_84_rfkill_phy1_wlan'
>  (string)
>   info.addons.singleton = { 'hald-addon-rfkill-killswitch' } (string list)
>   info.category = 'killswitch'  (string)
>   info.capabilities = { 'killswitch' } (string list)
> 
> When the wifi is on, the killswitch.state property is set to 1, and
> when it is off it is set to 2.  So, I created the following
> configuration file:
> 
> $ cat /etc/halevt/wifi_rfkill.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <halevt:Configuration version="0.1"
> xmlns:halevt="http://www.environnement.ens.fr/perso/dumas/halevt.html";>
> 
> <halevt:Device match="hal.killswitch.type = wlan">
>    <halevt:Property name="hal.killswitch.state">
>        <halevt:Action value="1" exec="/etc/rc.d/net-profiles restart"/>
>    </halevt:Property>
> </halevt:Device>
> 
> <halevt:Device match="hal.killswitch.type = wlan">
>    <halevt:Property name="hal.killswitch.state">
>        <halevt:Action value="2" exec="/etc/rc.d/net-profiles stop"/>
>    </halevt:Property>
> </halevt:Device>
> 
> </halevt:Configuration>
> 
> At the moment this is not working.  Maybe someone can tell me if I at
> least have the right idea.  The other thing I would like to know is

This looks very right to me.

> how to debug such a script.  Does halevt log its actions? 

Not that much when in the normal course of action. However you
can start it with -i and it will show you what it receives when 
you turn the switch on and off.

I could add some debug switch that turns on reporting while still 
processing the config file and running scripts, but I don't think
this is needed right now.

--
Pat