Re: NAP/GN with bluez-4

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Hi,

On Fri, Aug 14, 2009 at 7:52 AM, Dmitry A. Yanko<y.dmitry@xxxxxxxxx> wrote:
> Look 'local.txt' file here: http://www.cross-road.org.ua/bttests/
> hcidump output also available (with 'simple-service' script started,
> when remote device can see 1 service, and without, when no services
> shown at all). And also dump from windows box (NAP enabled), for
> comparison.
>
> --
> #include <regards.h>
>

It seems the service is registered:

Service Name: BlueZ NAP service
Service Description: BlueZ PAN service
Service RecHandle: 0x10007
Service Class ID List:
  "Network Access Point" (0x1116)
Protocol Descriptor List:
  "L2CAP" (0x0100)
    PSM: 15
  "BNEP" (0x000f)
    Version: 0x0100
    SEQ16: 800 806
Language Base Attr List:
  code_ISO639: 0x656e
  encoding:    0x6a
  base_offset: 0x100
Profile Descriptor List:
  "Network Access Point" (0x1116)
    Version: 0x0100

The dump doesn't seems to contain it and I don't see any attempt to
retrieve it, so I'm staring to believe it is the remote device fault,
also this looks suspicious:

2009-08-12 13:33:29.014953 > ACL data: handle 1 flags 0x02 dlen 38
    L2CAP(d): cid 0x0040 len 34 [psm 1]
        SDP SSA Req: tid 0x0 len 0x1d
          pat uuid-128 0350278f-3dca-4e62-831d-a41165ff906c
          max 4088
          aid(s) 0x0000 - 0xffff
          cont 00
2009-08-12 13:33:29.015025 < ACL data: handle 1 flags 0x02 dlen 14
    L2CAP(d): cid 0x0305 len 10 [psm 1]
        SDP SSA Rsp: tid 0x0 len 0x5
          count 2
          cont 00

This is the only time it attempt to retrieve a record which doesn't
use bluetooth base, also note that there is no attempt to retrieve
0x1116 which would return NAP record so I don't think your device is
really capable to use NAP service or it depend on the record from
0350278f-3dca-4e62-831d-a41165ff906c.

-- 
Luiz Augusto von Dentz
Engenheiro de Computação
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