[Bluez-users] Some documentation

[Bluez-users] Some documentation

[Filipa Duarte]

Dear all,

I do not want to push the discussion about BlueZ
documentation further, however I found a document that
could help some of you:

http://affix.sourceforge.net/affix-tech-doc/1.0/index.html

Although this document is written for Affix (another
Bluetooth protocol stack for Linux - I know that this
could be considered unpolite...) I believe that the
"General Architecture" chapter should be similar to
the BlueZ Architecture (Marcel, could you please
confirm this?).

This document help me understanding what parts of the
stack are on the Kernel Space and on the User Space
and how they interact. And... I did not have to
"follow the code" yet ;))!

Good luck.

Regards,

Filipa Duarte


		
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Re: [Bluez-users] Some documentation

[Marcel Holtmann]

Hi Filipa,

> I do not want to push the discussion about BlueZ
> documentation further, however I found a document that
> could help some of you:
> 
> http://affix.sourceforge.net/affix-tech-doc/1.0/index.html
> 
> Although this document is written for Affix (another
> Bluetooth protocol stack for Linux - I know that this
> could be considered unpolite...) I believe that the
> "General Architecture" chapter should be similar to
> the BlueZ Architecture (Marcel, could you please
> confirm this?).

the core architecture is different, because BlueZ hardware is not a
network device. The IrDA stack made this mistake and so did Affix. The
BlueZ uses its own hardware interface. Our driver interface is a lot
much cleaner.

> This document help me understanding what parts of the
> stack are on the Kernel Space and on the User Space
> and how they interact. And... I did not have to
> "follow the code" yet ;))!

I wrote some articles for German magazines and there are also some
papers on the web. And a lot of my presentation slides are available.

Regards

Marcel




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[Bluez-users] IP address

[Jers]

Hi all,
I intend to create a wireless network of laptops using bt-dongles.
I know that, first "pand -c <btaddr>" creates a connection and a bnep
interface, then an ip-address can be set to the bnep (ifconfig  bnepX
<ipaddr>)
Is it possible to assign the ip-address to each laptop/dongle before
creating connections?
Suppose that the ip-addressess of devices in a coverage area are set and
known. I'd like that involved laptops can require connection among
themselves using the ipaddress instead of btaddr.
Does BlueZ meet my requirements?
Thanks a lot.
Jers



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Re: [Bluez-users] IP address

[Marcel Holtmann]

Hi Jers,

> I intend to create a wireless network of laptops using bt-dongles.
> I know that, first "pand -c <btaddr>" creates a connection and a bnep
> interface, then an ip-address can be set to the bnep (ifconfig  bnepX
> <ipaddr>)
> Is it possible to assign the ip-address to each laptop/dongle before
> creating connections?

can you set the IP address for a network card that is not present in
your machine?

> Suppose that the ip-addressess of devices in a coverage area are set and
> known. I'd like that involved laptops can require connection among
> themselves using the ipaddress instead of btaddr.
> Does BlueZ meet my requirements?

It is not not working this way.

Regards

Marcel




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Re: [Bluez-users] IP address

[Pavel Ruzicka]

Hi,

> Is it possible to assign the ip-address to each laptop/dongle before
> creating connections?

I depends on distribution.
In Mandrake, Redhat and maybe others you can preconfigure parameters for first 
bnep interface in file:
/etc/sysconfig/network-scripts/ifcfg-bnep0
File looks like this:
-----
DEVICE=bnep0
BOOTPROTO=static
IPADDR=192.168.100.1
NETMASK=255.255.255.252
ONBOOT=no
-----

bnep1 can look like this:
-----
DEVICE=bnep1
BOOTPROTO=static
IPADDR=192.168.100.5
NETMASK=255.255.255.252
ONBOOT=no
-----

This is example for configuring many Point-to-Point BNEP connections.
IP 1 with 2, 5 with 6 etc...
You must have enabled routing in kernel.
For automatic enabling/disabling you must have functional hotplug.

If you want LAN with one big address space like 192.168.1.0
with mask 255.255.255.0, you must run bridge on your machine.

Some documentation is here:
http://bluez.sourceforge.net/contrib/HOWTO-PAN

Best regards,

Pavel Ruzicka


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Re: [Bluez-users] Some documentation

[benbouzid imad]

Hi Marcel,


> the core architecture is different, because BlueZ
> hardware is not a network device. 

Wath do you mean?

>The IrDA stack made this mistake and
> so did Affix. The
> BlueZ uses its own hardware interface. 

wich one ? hci_usb.c? affix also have one: btusb.c

>Our driver interface is a lot much cleaner.
 
Can you give more details?


tank you for your clarifications.
regards,
imad


	

	
		
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Re: [Bluez-users] Some documentation

[Marcel Holtmann]

Hi Imad,

> > the core architecture is different, because BlueZ
> > hardware is not a network device. 
> 
> Wath do you mean?
> 
> >The IrDA stack made this mistake and
> > so did Affix. The
> > BlueZ uses its own hardware interface. 
> 
> wich one ? hci_usb.c? affix also have one: btusb.c
> 
> >Our driver interface is a lot much cleaner.
>  
> Can you give more details?

check the mailing list archive for a detailed analysis from Max.

Regards

Marcel




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