Re: How does network manager read rfkill ?

[Dan Williams <dcbw redhat com>]

On Sat, 2009-04-25 at 00:45 +0300, Maxim Levitsky wrote:
> On Fri, 2009-04-24 at 12:49 -0400, Dan Williams wrote:
> > On Fri, 2009-04-24 at 18:16 +0300, Maxim Levitsky wrote:
> > > On Fri, 2009-04-24 at 11:06 -0400, Dan Williams wrote:
> > > > On Thu, 2009-04-23 at 22:35 +0300, Maxim Levitsky wrote:
> > > > > On Thu, 2009-04-23 at 07:15 -0400, Dan Williams wrote:
> > > > > > On Thu, 2009-04-23 at 02:16 -0400, eye zak wrote:
> > > > > > > Hi,
> > > > > > > 
> > > > > > > I am writing low-level rfkill support in the ath5k driver in
> > > > > > > compat-wireless-2.6, and I am wondering how network manager knows
> > > > > > > about my rfkill device ?
> > > > > > > 
> > > > > > > Hal recognizes it no problem and broadcasts an event on state change,
> > > > > > > and tracks the current state. But netowork manager (jaunty-latest)
> > > > > > > does not notice it.
> > > > > > 
> > > > > > NM finds all devices in HAL with the capability 'killswitch', and polls
> > > > > > them every 6 seconds to find out if any of them return 0 for GetPower.
> > > > > > If any do, it assumes rfkill.  Are you sure NM is allowed to talk to HAL
> > > > > > on your distribution?  Some distros like Debian use different D-Bus
> > > > > > permissions styles, and if those are wrong in
> > > > > > the /etc/dbus-1/system.d/NetworkManager.conf, NM may not be able to talk
> > > > > > to HAL and get the killsiwtch state.
> > > > > > 
> > > > > > Dan
> > > > > 
> > > > > Or, it currently ignores platform kill switches, like acer-wmi
> > > > 
> > > > Do those rfkill switches expose themselves via HAL?  If so, then
> > > > NetworkManager is expected to work with them.  If not, then those need
> > > > to either (a) be ported to the kernel's rfkill subsystem in which case
> > > > they will be supported by HAL 0.5.12 automatically, or (b) get HAL
> > > > support otherwise.
> > > > 
> > > > Obviously (a) is preferred.
> > > > 
> > > 
> > > maxim maxim-laptop:~$ hald --version
> > > HAL package version: 0.5.12
> > > 
> > > I tried acer-wmi, and NM doesn't see it.
> > > It does expose normal rfkill interface
> > 
> > What distro?  Can you attach the lshal bits for all killswitches
> > contained in 'lshal' ?
> > 
> > Dan
> > 
> 
> Now I use ubuntu 9.04, but it was always present.
> 
> 
> 
> > udi = '/org/freedesktop/Hal/devices/platform_acer_wmi_rfkill_acer_wireless_wlan'
> >   info.addons.singleton = {'hald-addon-rfkill-killswitch'} (string list)
> >   info.capabilities = {'killswitch'} (string list)
> >   info.category = 'killswitch'  (string)
> >   info.interfaces = {'org.freedesktop.Hal.Device.KillSwitch'} (string list)
> >   info.parent = '/org/freedesktop/Hal/devices/platform_acer_wmi'  (string)
> >   info.product = 'acer-wireless wlan Killswitch'  (string)
> >   info.subsystem = 'rfkill'  (string)
> >   info.udi = '/org/freedesktop/Hal/devices/platform_acer_wmi_rfkill_acer_wireless_wlan'  (string)
> >   killswitch.access_method = 'rfkill'  (string)
> >   killswitch.name = 'acer-wireless'  (string)
> >   killswitch.state = 1  (0x1)  (int)
> >   killswitch.type = 'wlan'  (string)
> >   linux.hotplug_type = 2  (0x2)  (int)
> >   linux.subsystem = 'rfkill'  (string)
> >   linux.sysfs_path = '/sys/devices/platform/acer-wmi/rfkill/rfkill1'  (string)
> > 
> > 
> 
> 
> 
> > udi = '/org/freedesktop/Hal/devices/pci_8086_4222_rfkill_3945BG_wlan'
> >   info.addons.singleton = {'hald-addon-rfkill-killswitch'} (string list)
> >   info.capabilities = {'killswitch'} (string list)
> >   info.category = 'killswitch'  (string)
> >   info.interfaces = {'org.freedesktop.Hal.Device.KillSwitch'} (string list)
> >   info.parent = '/org/freedesktop/Hal/devices/pci_8086_4222'  (string)
> >   info.product = '3945BG wlan Killswitch'  (string)
> >   info.subsystem = 'rfkill'  (string)
> >   info.udi = '/org/freedesktop/Hal/devices/pci_8086_4222_rfkill_3945BG_wlan'  (string)
> >   info.vendor = 'Intel Corporation'  (string)
> >   killswitch.access_method = 'rfkill'  (string)
> >   killswitch.name = '3945BG'  (string)
> >   killswitch.state = 1  (0x1)  (int)
> >   killswitch.type = 'wlan'  (string)
> >   linux.hotplug_type = 2  (0x2)  (int)
> >   linux.subsystem = 'rfkill'  (string)
> >   linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1c.3/0000:06:00.0/rfkill/rfkill0'  (string)
> > 
> > 
> 
> 
> Last time, a week ago or so, I installed ubuntu 9.04
> I disabled rfkill support in iwl3945, loaded acer-wmi, and yet NM didn't see the killswitch, even after a reboot

Do you ever get anything in syslog (wherever syslog directs the 'daemon'
facility) about "Found radio killswitch xxxx"?  If not, then we have to
do some more debugging, and if you can rebuild NM with a patch or two,
I'd be happy to help figure out where NM is going wrong.  Your lshal
looks fine.

Dan