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Today's Topics:
1. Re: Unable to setup connman using systemd (Tomasz Bursztyka)
----------------------------------------------------------------------
Message: 1
Date: Thu, 13 Oct 2016 15:41:20 +0200
From: Tomasz Bursztyka <[email protected]>
To: Fabio Emiliani <[email protected]>,
[email protected]
Subject: Re: Unable to setup connman using systemd
Message-ID: <[email protected]>
Content-Type: text/plain; charset="windows-1252"; Format="flowed"
What about Patrik's proposal?
To me it sounds like a bus access authorization issue.
Tomasz
> Hi Tomasz,
>
> I've checked the build config of wpa_supplicant. The old
> "fi.epitest.hostap.WPASupplicant" interfaces is enabled for backward
> compatibility (CONFIG_CTRL_IFACE_DBUS=y). At the same time there is
> also the new "fi.w1.hostap.wpa_supplicant1" interface
> (CONFIG_CTRL_IFACE_DBUS_NEW=y).
>
> The service is correctly exposed. I tried to execute the following
> command:
>
>> dbus-send --system --dest=fi.w1.wpa_supplicant1 --type=method_call
>> --print-reply /fi/w1/wpa_supplicant1
>> fi.w1.wpa_supplicant1.*GetInterface* string:*wlan0*
> GetInterface = Returns a D-Bus path to an object related to an
> interface which wpa_supplicant already controls
>
> And I've got the expected answer:
>
>> <nt1 fi.w1.wpa_supplicant1.GetInterface string:wlan0
>> method return sender=:1.0 -> dest=:1.16 reply_serial=2
>> *object path "/fi/w1/wpa_supplicant1/Interfaces/1"*
> so the wlan0 interfaced is correctly controlled by the supplicant and
> the supplicant can be correctly controlled via the
> fi.w1.wpa_supplicant1 service.
>
> Supposing that wpa_supplicant is correctly configured, what other
> actors can cause the "No matching drivers found for wifi."?
>
> Regards,
>
> Fabio
>
> Il 13/10/2016 13:03, Tomasz Bursztyka ha scritto:
>> Hi Fabio,
>>
>> It seems right. So then the issue is somewhere else, but still
>> related to DBus.
>>
>> Either connman has not the authorization to access wpa_s dbus service, or
>> wpa_s service is badly exposed (systemd config?) etc...
>>
>> Hard to tell, it's been a while since I have had such issue
>>
>> Tomasz
>>
>>> Tomasz,
>>>
>>> you are right. I launched wpa_supplicant and then connmand. Nothing
>>> has appeared on wpa_supplicant stdout.
>>>
>>> This is my wpa_supplicant dbus configuration file:
>>>
>>>> < cat /etc/dbus-1/system.d/dbus-wpa_supplicant.conf
>>>> <!DOCTYPE busconfig PUBLIC
>>>> "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
>>>> "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd";>
>>>> <busconfig>
>>>> <policy user="root">
>>>> <allow own="fi.epitest.hostap.WPASupplicant"/>
>>>>
>>>> <allow
>>>> send_destination="fi.epitest.hostap.WPASupplicant"/>
>>>> <allow
>>>> send_interface="fi.epitest.hostap.WPASupplicant"/>
>>>>
>>>> <allow own="fi.w1.wpa_supplicant1"/>
>>>>
>>>> <allow send_destination="fi.w1.wpa_supplicant1"/>
>>>> <allow send_interface="fi.w1.wpa_supplicant1"/>
>>>> <allow receive_sender="fi.w1.wpa_supplicant1"
>>>> receive_type="signal"/>
>>>> </policy>
>>>> <policy context="default">
>>>> <deny own="fi.epitest.hostap.WPASupplicant"/>
>>>> <deny
>>>> send_destination="fi.epitest.hostap.WPASupplicant"/>
>>>> <deny
>>>> send_interface="fi.epitest.hostap.WPASupplicant"/>
>>>>
>>>> <deny own="fi.w1.wpa_supplicant1"/>
>>>> <deny send_destination="fi.w1.wpa_supplicant1"/>
>>>> <deny send_interface="fi.w1.wpa_supplicant1"/>
>>>> <deny receive_sender="fi.w1.wpa_supplicant1"
>>>> receive_type="signal"/>
>>>> </policy>
>>>> </busconfig>
>>> Do you think there is something wrong?
>>>
>>> Regards,
>>>
>>> Fabio
>>>
>>> Il 13/10/2016 12:10, Tomasz Bursztyka ha scritto:
>>>> Hi Fabio,
>>>>
>>>>> I've found an important clue. If launching connmand in foreground
>>>>> (connmand -d -n) I see the following debug log:
>>>>>
>>>>>> connmand[1769]:
>>>>>> /home/user/Project/ICU/BUILD_YOCTO/build_lam_icu_systemd/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/connman/1.28-r0/connman-1.28/src/technology.c:technology_get()*No
>>>>>>
>>>>>> matching drivers found for wifi*.
>>>>> What's the meaning of this message? Why connmand can't find wifi
>>>>> drivers?
>>>>
>>>> This is about connman's driver: plugins/wifi.c along with gsupplicant
>>>> And that can happen if wpa_supplicant dbus service is not found.
>>>>
>>>> Try:
>>>> stop wpa_supplicant, and connman.
>>>>
>>>> in a terminal start wpa_supplicant un foreground with -u -ddd
>>>>
>>>> in another terminal start connman in foreground as you did.
>>>>
>>>> See if wpa_supplicant gets contacted. Something tells me it is not.
>>>>
>>>> If that's the case: then it's most likely a dbus config issue for
>>>> wpa_supplicant.
>>>> Check /etc/dbus-1/system.d/wpa_supplicant.conf
>>>>
>>>> Tomasz
>>>
>>> --
>>>
>>> *Fabio Emiliani*
>>>
>>> */Software Engineer/*
>>>
>>> /Ph. +39 075 8298 532/
>>>
>>> /[email protected]/ <mailto:[email protected]>
>>>
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>>
>
> --
>
> *Fabio Emiliani*
>
> */Software Engineer/*
>
> /Ph. +39 075 8298 532/
>
> /[email protected]/ <mailto:[email protected]>
>
> DISCLAIMER
> This email and any attachment may contain confidential information. If
> you are not the intended recipient you are not authorised to copy or
> disclose all or any part of it without the prior written consent of
> ART SpA.
>
> /ART SpA ? Step Forward With US -
> //www.artgroup-spa.com/logo_ART_firma-1//
>
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>
> P*Please consider our environment before printing this e-mail***
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