Configuring a Bluetooth PAN server: can't find docs

Configuring a Bluetooth PAN server: can't find docs

[Egbert van der Wal]

Hi,

Short story: I'd really like to RTFM, but in all of my online quests I 
can't find where it is. Where can I find documentation about bluez, 
configuration files and pand?

With a bit more information: I'm trying to configure a device (Odroid 
XU4 running Ubuntu 14.04, using Bluez 4.101) to accept PAN-connections. 
Doing this I want to provide the connecting user with a web interface to 
perform some configuration tasks (such as connecting to a wifi).

The resulting connection will not provide internet access and will only 
be used to expose access to an internal IP address (e.g. 10.0.0.1). I 
want the device to basically accept any pairing request using a fixed, 
pre-configured pin-code.

I've been trying to get this working for a while now using various 
howto's but it seems to me that each and every one of them uses a 
different way to configure Bluez, probably resulting from a different 
version. I basically tried all of them and none seem to work (due to 
missing / invalid commands or missing / ignored configuration files).

I couldn't find any documentation on bluez.org itself. The bluetoothd 
man-page refers to a man-page of /etc/bluetooth/main.conf that doesn't 
seem to exist, and the contents of /etc/bluetooth/main.conf also seem to 
be ignored so I'm quite stuck here.

Any pointers to any type of documentation that covers my version of 
bluez and the steps to set this up would be highly appreciated.

Thanks in advance!

Regards,

Egbert

Re: Configuring a Bluetooth PAN server: can't find docs

[Luiz Augusto von Dentz]

Hi Egbert,

On Fri, Apr 1, 2016 at 3:52 PM, Egbert van der Wal <ewal@pointpro.nl> wrote:
> Hi,
>
> Short story: I'd really like to RTFM, but in all of my online quests I can't
> find where it is. Where can I find documentation about bluez, configuration
> files and pand?
>
> With a bit more information: I'm trying to configure a device (Odroid XU4
> running Ubuntu 14.04, using Bluez 4.101) to accept PAN-connections. Doing
> this I want to provide the connecting user with a web interface to perform
> some configuration tasks (such as connecting to a wifi).

Unfortunately 4.101 is a bit too old and I guess even NetworkManager
does support that.

> The resulting connection will not provide internet access and will only be
> used to expose access to an internal IP address (e.g. 10.0.0.1). I want the
> device to basically accept any pairing request using a fixed, pre-configured
> pin-code.
>
> I've been trying to get this working for a while now using various howto's
> but it seems to me that each and every one of them uses a different way to
> configure Bluez, probably resulting from a different version. I basically
> tried all of them and none seem to work (due to missing / invalid commands
> or missing / ignored configuration files).

Have you tried connman tethering? https://01.org/connman/documentation

> I couldn't find any documentation on bluez.org itself. The bluetoothd
> man-page refers to a man-page of /etc/bluetooth/main.conf that doesn't seem
> to exist, and the contents of /etc/bluetooth/main.conf also seem to be
> ignored so I'm quite stuck here.

https://git.kernel.org/cgit/bluetooth/bluez.git/tree/doc/network-api.txt

>
> Any pointers to any type of documentation that covers my version of bluez
> and the steps to set this up would be highly appreciated.

Create a bridge and pass it to org.bluez.NetworkServer1.Register, the
process need to remain connected to D-Bus otherwise it will be
unregistered, but other than that it should be really simple.

> Thanks in advance!
>
> Regards,
>
> Egbert
>
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-- 
Luiz Augusto von Dentz

Re: Configuring a Bluetooth PAN server: can't find docs

[Egbert van der Wal]

Op 05-04-16 om 17:03 schreef Luiz Augusto von Dentz:
> Hi Egbert,
>
> On Fri, Apr 1, 2016 at 3:52 PM, Egbert van der Wal <ewal@pointpro.nl> wrote:
>> Hi,
>>
>> Short story: I'd really like to RTFM, but in all of my online quests I can't
>> find where it is. Where can I find documentation about bluez, configuration
>> files and pand?
>>
>> With a bit more information: I'm trying to configure a device (Odroid XU4
>> running Ubuntu 14.04, using Bluez 4.101) to accept PAN-connections. Doing
>> this I want to provide the connecting user with a web interface to perform
>> some configuration tasks (such as connecting to a wifi).
> Unfortunately 4.101 is a bit too old and I guess even NetworkManager
> does support that.
>
>> The resulting connection will not provide internet access and will only be
>> used to expose access to an internal IP address (e.g. 10.0.0.1). I want the
>> device to basically accept any pairing request using a fixed, pre-configured
>> pin-code.
>>
>> I've been trying to get this working for a while now using various howto's
>> but it seems to me that each and every one of them uses a different way to
>> configure Bluez, probably resulting from a different version. I basically
>> tried all of them and none seem to work (due to missing / invalid commands
>> or missing / ignored configuration files).
> Have you tried connman tethering? https://01.org/connman/documentation
>
>> I couldn't find any documentation on bluez.org itself. The bluetoothd
>> man-page refers to a man-page of /etc/bluetooth/main.conf that doesn't seem
>> to exist, and the contents of /etc/bluetooth/main.conf also seem to be
>> ignored so I'm quite stuck here.
> https://git.kernel.org/cgit/bluetooth/bluez.git/tree/doc/network-api.txt
>
>> Any pointers to any type of documentation that covers my version of bluez
>> and the steps to set this up would be highly appreciated.
> Create a bridge and pass it to org.bluez.NetworkServer1.Register, the
> process need to remain connected to D-Bus otherwise it will be
> unregistered, but other than that it should be really simple.
>

Hi Luiz,

Thank you for the suggestion. The link you provided is a link to an API, 
not a link to documentation for the entire package and how all parts 
interoperate, including the available software utilities. Am I correct 
in concluding that such documentation does not exist, from an official 
source?

Anyway, I have been able to collect several bits and pieces from more 
forums and now have been able to create a Bluetooth NAP using the 
bt-network tool. The name of that tool was basically was I was looking 
for, combined with some documentation on how to set up the bridge that 
it works with.

BlueZ 4.101 is the latest version available on Ubuntu 14.04, the most 
recent LTS distribution of Ubuntu until a couple of days ago, so in that 
sense, it really isn't that old. And it turns out that NetworkManager is 
able to interface with BlueZ 4.101 on the other end fine in order to 
connect to the NAP.

Again, thanks for the help. I've been able to achieve what I attempted.

Kind regards,

Egbert van der Wal

Re: Configuring a Bluetooth PAN server: can't find docs

[Mulle Nork]

Hi Egbert,

would it possible for you to elaborate a little bit on your findings,
i.e. which software stack you used and how you got the correct
configuration? I=E2=80=99m quite stuck at an identical problem.

Cheers,
Mulle