Re: [Bluez-users] SDP problems on embedded device

Marcel Holtmann
2004-07-20T14:47:43Z

Hi Rolf,

> Here's the output from the laptop (browsing the Cerfcube):
>
> HCIDump - HCI packet analyzer ver 1.9
> device: hci0 snap_len: 1028 filter: 0xffffffff
> 1090319067.842941 < HCI Command: Create Connection (0x01|0x0005) plen 13
> 2A 20 00 94 0A 00 18 CC 00 00 00 00 01
> 1090319067.846445 > HCI Event: Command Status (0x0f) plen 4
> 00 01 05 04
> 1090319068.636871 > HCI Event: Connect Complete (0x03) plen 11
> 00 29 00 2A 20 00 94 0A 00 01 00
> 1090319068.637297 < ACL data: handle 0x0029 flags 0x02 dlen 12
> L2CAP(s): Connect req: psm 1 scid 0x0040
> 1090319068.637345 < HCI Command: Write Link Policy Settings
> (0x02|0x000d) plen 4
> 29 00 0F 00
> 1090319068.648902 > HCI Event: Number of Completed Packets (0x13) plen 5
> 01 29 00 01 00
> 1090319068.658112 > HCI Event: Command Complete (0x0e) plen 6
> 01 0D 08 00 29 00
> 1090319068.666028 > HCI Event: Page Scan Repetition Mode Change (0x20)
> plen 7
> 2A 20 00 94 0A 00 01
> 1090319068.667769 > HCI Event: Max Slots Change (0x1b) plen 3
> 29 00 05
> 1090319068.715975 > ACL data: handle 0x0029 flags 0x02 dlen 16
> L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
> 1090319068.716411 < ACL data: handle 0x0029 flags 0x02 dlen 12
> L2CAP(s): Config req: dcid 0x0040 flags 0x0000 clen 0
> 1090319068.722627 > HCI Event: Number of Completed Packets (0x13) plen 5
> 01 29 00 01 00
> 1090319068.745926 > ACL data: handle 0x0029 flags 0x02 dlen 14
> L2CAP(s): Config rsp: scid 0x0040 flags 0x0000 result 0 clen 0
> 1090319107.835421 < ACL data: handle 0x0029 flags 0x02 dlen 12
> L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
> 1090319107.849809 > HCI Event: Number of Completed Packets (0x13) plen 5
> 01 29 00 01 00
> 1090319107.866512 > ACL data: handle 0x0029 flags 0x02 dlen 12
> L2CAP(s): Disconn rsp: dcid 0x0040 scid 0x0040
> 1090319109.835420 < HCI Command: Disconnect (0x01|0x0006) plen 3
> 29 00 13
> 1090319109.837924 > HCI Event: Command Status (0x0f) plen 4
> 00 01 06 04
> 1090319109.875959 > HCI Event: Disconn Complete (0x05) plen 4
> 00 29 00 16
>
> and here's the output from the Cerfcube:
>
> HCIDump - HCI packet analyzer ver 1.9
> device: hci0 snap_len: 1028 filter: 0xffffffff
> 1090319478.496750 > HCI Event: Connect Request (0x04) plen 10
> 74 05 B1 76 0C 00 00 01 00 01
> 1090319478.497886 < HCI Command: Accept Connection Request (0x01|0x0009)
> plen 7
> 74 05 B1 76 0C 00 01
> 1090319478.512733 > HCI Event: Command Status (0x0f) plen 4
> 00 01 09 04
> 1090319478.546741 > HCI Event: Connect Complete (0x03) plen 11
> 00 29 00 74 05 B1 76 0C 00 01 00
> 1090319478.547821 < HCI Command: Write Link Policy Settings
> (0x02|0x000d) plen 4
> 29 00 0F 00
> 1090319478.550769 > HCI Event: Page Scan Repetition Mode Change (0x20)
> plen 7
> 74 05 B1 76 0C 00 01
> 1090319478.564746 > HCI Event: Command Complete (0x0e) plen 6
> 01 0D 08 00 29 00
> 1090319478.565797 < HCI Command: Change Connection Packet Type
> (0x01|0x000f) plen 4
> 29 00 18 CC
> 1090319478.584718 > HCI Event: Max Slots Change (0x1b) plen 3
> 29 00 05
> 1090319478.588740 > HCI Event: Command Status (0x0f) plen 4
> 00 01 0F 04
> 1090319478.592739 > HCI Event: Connection Packet Type Changed (0x1d) plen 5
> 00 29 00 18 CC
> 1090319478.602746 > ACL data: handle 0x0029 flags 0x02 dlen 12
> L2CAP(s): Connect req: psm 1 scid 0x0040
> 1090319478.604041 < ACL data: handle 0x0029 flags 0x02 dlen 16
> L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
> 1090319478.612733 > HCI Event: Number of Completed Packets (0x13) plen 5
> 01 29 00 01 00
> 1090319478.618741 > ACL data: handle 0x0029 flags 0x02 dlen 12
> L2CAP(s): Config req: dcid 0x0040 flags 0x0000 clen 0
> 1090319478.619937 < ACL data: handle 0x0029 flags 0x02 dlen 14
> L2CAP(s): Config rsp: scid 0x0040 flags 0x0000 result 0 clen 0
> 1090319478.620053 < ACL data: handle 0x0029 flags 0x02 dlen 12
> L2CAP(s): Config req: dcid 0x0040 flags 0x0000 clen 0

the problem is that this "Config req" request never reaches the other
side. And because of that the laptop sides sends a "Disonn req" after
some time.

> 1090319478.642724 > HCI Event: Number of Completed Packets (0x13) plen 5
> 01 29 00 01 00
> 1090319517.746003 > ACL data: handle 0x0029 flags 0x02 dlen 12
> L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
> 1090319517.746236 < ACL data: handle 0x0029 flags 0x02 dlen 12
> L2CAP(s): Disconn rsp: dcid 0x0040 scid 0x0040
> 1090319517.768987 > HCI Event: Number of Completed Packets (0x13) plen 5
> 01 29 00 01 00
> 1090319519.848575 > HCI Event: Disconn Complete (0x05) plen 4
> 00 29 00 13

Try using 2.4.19-mh14 and show us the output of "hciconfig -a" on your
Cerfcube. Is the Cerfcube a big endian machine?

Regards

Marcel