From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <cyrus@holtmann.org>
Message-ID: <4C4EA1CB.2050406@nokia.com>
Date: Tue, 27 Jul 2010 12:07:23 +0300
From: Ville Tervo <ville.tervo@nokia.com>
MIME-Version: 1.0
To: "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
CC: "Gustavo F. Padovan" <padovan@profusion.mobi>
Subject: L2CAP unknown options
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Sender: linux-bluetooth-owner@vger.kernel.org
List-ID: <linux-bluetooth.vger.kernel.org>

Hi,

I found following problem with bluetooth-next-2.6.

Kernel disconnects if remote device replies with "unknown options" 
result code. I guess in that case a new config req should be sent 
without unknown option. I didn't check the spec yet.

The remote device is Nokia 9300.

2010-07-27 11:44:07.364827 < ACL data: handle 11 flags 0x02 dlen 10
     L2CAP(s): Info req: type 2
2010-07-27 11:44:07.365337 < HCI Command: Remote Name Request 
(0x01|0x0019) plen 10
     bdaddr 00:12:37:F0:F1:77 mode 2 clkoffset 0x0000
2010-07-27 11:44:07.367793 > HCI Event: Command Status (0x0f) plen 4
     Remote Name Request (0x01|0x0019) status 0x00 ncmd 1
2010-07-27 11:44:07.384797 > HCI Event: Max Slots Change (0x1b) plen 3
     handle 11 slots 5
2010-07-27 11:44:07.406820 > ACL data: handle 11 flags 0x02 dlen 12
     L2CAP(s): Info rsp: type 2 result 1
       Not supported
2010-07-27 11:44:07.406849 < ACL data: handle 11 flags 0x02 dlen 12
     L2CAP(s): Connect req: psm 1 scid 0x0040
2010-07-27 11:44:07.431790 > HCI Event: Remote Name Req Complete (0x07) 
plen 255
     status 0x00 bdaddr 00:12:37:F0:F1:77 name 'vt-m'
2010-07-27 11:44:07.433780 > HCI Event: Number of Completed Packets 
(0x13) plen 5
     handle 11 packets 2
2010-07-27 11:44:07.474801 > ACL data: handle 11 flags 0x02 dlen 16
     L2CAP(s): Connect rsp: dcid 0x0042 scid 0x0040 result 1 status 2
       Connection pending - Authorization pending
2010-07-27 11:44:07.668818 > ACL data: handle 11 flags 0x02 dlen 16
     L2CAP(s): Connect rsp: dcid 0x0042 scid 0x0040 result 0 status 0
       Connection successful
2010-07-27 11:44:07.668851 < ACL data: handle 11 flags 0x02 dlen 23
     L2CAP(s): Config req: dcid 0x0042 flags 0x00 clen 11
       RFC 0x00 (Basic)
2010-07-27 11:44:07.669814 > ACL data: handle 11 flags 0x02 dlen 12
     L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 0
2010-07-27 11:44:07.669840 < ACL data: handle 11 flags 0x02 dlen 18
     L2CAP(s): Config rsp: scid 0x0042 flags 0x00 result 0 clen 4
       MTU 672
2010-07-27 11:44:07.675794 > HCI Event: Number of Completed Packets 
(0x13) plen 5
     handle 11 packets 2
2010-07-27 11:44:07.682822 > ACL data: handle 11 flags 0x02 dlen 19
     L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 3 clen 5
       Failure - unknown options
       RFC QoS 0f 00 42
2010-07-27 11:44:07.682843 < ACL data: handle 11 flags 0x02 dlen 12
     L2CAP(s): Disconn req: dcid 0x0042 scid 0x0040
2010-07-27 11:44:07.693823 > ACL data: handle 11 flags 0x02 dlen 12
     L2CAP(s): Disconn rsp: dcid 0x0042 scid 0x0040