Re: [Bluez-users] implementing security mode 2 or 3

[Marco Trudel <mtrudel@gmx.ch>]

Marcel Holtmann wrote:
> Hi Marco,
> 
> 
>>>>this works great with a 2.6.11 kernel.
>>>>Unfortunately I'm bound to kernel 2.4.26 or 2.6.7.
>>>>2.4.26 doesn't work. It just let's remote devices connect...
>>>>Do you know if 2.6.7 will?
>>>
>>> 
>>>the 2.6.7 will fail. The needed security hooks are introduced with
>>>2.6.10 and the RFCOMM service level security with 2.6.11 according to my
>>>patch logs.
>>> 
>>>
>>>>If not, which part of the kernel has to be fixed? Is it a part of bluez?
>>>
>>> 
>>>It is inside the BlueZ core and the RFCOMM layer.
>>
>>How long would you have to backport that to kernel 2.6.7?
>>Maybe we can arrainge something with a donation...
> 
> 
> tell me what interfaces are you going to use. Is it always USB? What
> kernel layers are involved? RFCOMM, BNEP, CMTP, HIDP?

always USB. RFCOMM services.

authentication/encryption enabled as suggested on the list:
    int opt = RFCOMM_LM_AUTH|RFCOMM_LM_ENCRYPT;
    setsockopt(sock, SOL_RFCOMM, RFCOMM_LM, &opt, sizeof(opt));

> You will need more than this two patches for a 2.6.7 based kernel,
> because there are some serious problems, too.

actually I never run into problems with the 2.4 kernel. But I think it 
would definitely make sense to have this things fixed too...

>>I assume it's easier to backport it to 2.6.7, if 2.4.26 is easier, please 
>>let me know.
> 
> 
> The 2.6.7 backport will be end up in selecting patches and fixes small
> things, while for 2.4.26 you need to rewrite most of the patches.

ok, so it's 2.6.7...


regards
Marco


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