l2cap Connection refused

Hello together,
this is the first time that I post a question to the mailing list.
A couple of days ago I bought an AVM Bluefritz Bluetooth set to connect my PC to the internet. Unfortunately I was not able to set this up for my Ubuntu Linux (5.04).
After a serious internet research I achieved a point where I do need help by "linux professionals" because I tried out alot.

When I type following:

orkan@ubuntu:~$ sudo hcitool scan
Scanning ...
        00:04:03:02:93:41       Bluetooth ISDN Access Point
orkan@ubuntu:~$

I find an access point.

When I type following:

orkan@ubuntu:~$ sudo ciptool search
Searching ...
        Checking service for 00:04:0E:8B:74:E1
        Connecting to device 00:04:0E:8B:74:E1
Can't connect L2CAP socket: Connection refused
orkan@ubuntu:~$

I receive that L2CAP connection was refused.
My pin is set in the file /etc/bluetooth/pin and I also tried to edit the bluepin-perl-skript. For Ubuntu it is /usr/bin/bluepin. I followed the instructions from Marcel Holtmann.

Would you be so kind and can give me support that I can connect via Linux and bluetooth to the internet?

Bye
Orkan
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Hi Orkan,

run "hcidump -X -V" as in root in another terminal window and see what happens.

Regards

Marcel

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Hi Marcel,

Thanks for the support. Meanwhile I updated to Ubuntu 5.10 but had the same problem.

By luck I found a way to get the USB-Bluetootch run but it is not the most convenient one.

When I type as root the command: sudo /etc/init.d/bluez-utils restart

and after that the sudo ciptool search

suddenly the bluetooth connection is establishe and I can connect to the internet.

But following you will find as feedback to the proposed command:

orkan@ubuntu510:~$ sudo hcidump -X -V

Password:

HCI sniffer - Bluetooth packet analyzer ver 1.23

device: hci0 snap_len: 1028 filter: 0xffffffff

on a second terminal I typed in the command

sudo ciptool search (without to restart bluetooth) and received following:

< HCI Command: Inquiry (0x01|0x0001) plen 5

lap 0x9e8b33 len 8 num 0

Inquiry (0x01|0x0001) status 0x00 ncmd 1

bdaddr 00:04:0E:8B:74:E1 mode 1 clkoffset 0x2a11 class 0x420214

status 0x00

< HCI Command: Create Connection (0x01|0x0005) plen 13

bdaddr 00:04:0E:8B:74:E1 ptype 0xcc18 rswitch 0x01 clkoffset 0x2a11 (valid)

Packet type: DM1 DM3 DM5 DH1 DH3 DH5

Create Connection (0x01|0x0005) status 0x00 ncmd 1

status 0x00 handle 1 bdaddr 00:04:0E:8B:74:E1 type ACL encrypt 0x00

< ACL data: handle 1 flags 0x02 dlen 12

L2CAP(s): Connect req: psm 1 scid 0x0040

< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4

handle 1 policy 0x0f

Link policy: RSWITCH HOLD SNIFF PARK

Write Link Policy Settings (0x02|0x000d) ncmd 1

status 0x00 handle 1

handle 1 slots 5

handle 1 packets 1

L2CAP(s): Connect rsp: dcid 0x0044 scid 0x0040 result 0 status 0

Connection successful

< ACL data: handle 1 flags 0x02 dlen 12

L2CAP(s): Config req: dcid 0x0044 flags 0x00 clen 0

L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4

     MTU 672

< ACL data: handle 1 flags 0x02 dlen 14

L2CAP(s): Config rsp: scid 0x0044 flags 0x00 result 0 clen 0

Success

handle 1 packets 1

L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 4

     Success

     MTU 672

< ACL data: handle 1 flags 0x02 dlen 22

L2CAP(d): cid 0x0044 len 18 [psm 1]

       SDP SSA Req: tid 0x0 len 0xd

         pat uuid-16 0x1128 (CIP)

         max 65535

         aid(s) 0x0004 (ProtocolDescList)

         cont 00

handle 1 packets 1

handle 1 packets 1

L2CAP(d): cid 0x0040 len 30 [psm 1]

       SDP SSA Rsp: tid 0x0 len 0x19

         count 22

         record #0

             aid 0x0004 (ProtocolDescList)

                < < uuid-16 0x0100 (L2CAP) uint 0x1003 > <

                uuid-16 0x001b (CMTP) > >

         cont 00

< ACL data: handle 1 flags 0x02 dlen 12

L2CAP(s): Disconn req: dcid 0x0044 scid 0x0040

< ACL data: handle 1 flags 0x02 dlen 12

L2CAP(s): Connect req: psm 4099 scid 0x0041

handle 1 packets 1

L2CAP(s): Disconn rsp: dcid 0x0044 scid 0x0040

handle 1 packets 1

L2CAP(s): Connect rsp: dcid 0x0045 scid 0x0041 result 1 status 1

Connection pending - Authentication pending

status 0x00 bdaddr 00:04:0E:8B:74:E1 role 0x01

Role: Slave

bdaddr 00:04:0E:8B:74:E1

< HCI Command: Link Key Request Reply (0x01|0x000b) plen 22

bdaddr 00:04:0E:8B:74:E1 key 8A0705CD073CD2E28621DD396993975F

Link Key Request Reply (0x01|0x000b) ncmd 1

status 0x00 bdaddr 00:04:0E:8B:74:E1

handle 1 slots 5

bdaddr 00:04:0E:8B:74:E1

< HCI Command: PIN Code Request Negative Reply (0x01|0x000e) plen 6

bdaddr 00:04:0E:8B:74:E1

PIN Code Request Negative Reply (0x01|0x000e) ncmd 1

status 0x06 bdaddr 00:04:0E:8B:74:E1

Error: PIN or Key Missing

L2CAP(s): Connect rsp: dcid 0x0045 scid 0x0041 result 3 status 0

Connection refused - security block

< HCI Command: Disconnect (0x01|0x0006) plen 3

handle 1 reason 0x13

Reason: Remote User Terminated Connection

Disconnect (0x01|0x0006) status 0x00 ncmd 1

status 0x00 handle 1 reason 0x16

Reason: Connection Terminated by Local Host

After restarting the bluetooth (sudo /etc/init.d/bluez-utils restart) following came up.

orkan@ubuntu510:~$ sudo hcidump -X -V

HCI sniffer - Bluetooth packet analyzer ver 1.23

device: hci0 snap_len: 1028 filter: 0xffffffff

< HCI Command: Write Scan Enable (0x03|0x001a) plen 1

enable 3

Write Scan Enable (0x03|0x001a) ncmd 1

status 0x00

< HCI Command: Read Stored Link Key (0x03|0x000d) plen 7

bdaddr 00:00:00:00:00:00 all 1

Read Stored Link Key (0x03|0x000d) ncmd 1

status 0x00 max 8 num 0

< HCI Command: Write Authentication Enable (0x03|0x0020) plen 1

enable 0

Write Authentication Enable (0x03|0x0020) ncmd 1

status 0x00

< HCI Command: Write Authentication Enable (0x03|0x0020) plen 1

enable 0

Write Authentication Enable (0x03|0x0020) ncmd 1

status 0x00

< HCI Command: Write Encryption Mode (0x03|0x0022) plen 1

mode 0

Write Encryption Mode (0x03|0x0022) ncmd 1

status 0x00

< HCI Command: Write Local Name (0x03|0x0013) plen 248

name 'ubuntu510-0'

Write Local Name (0x03|0x0013) ncmd 1

status 0x00

< HCI Command: Write Class of Device (0x03|0x0024) plen 3

class 0x3e0100

Write Class of Device (0x03|0x0024) ncmd 1

status 0x00

Aganin the command hcidump -X -V but with established ciptool search command

orkan@ubuntu510:~$ sudo hcidump -X -V

HCI sniffer - Bluetooth packet analyzer ver 1.23

device: hci0 snap_len: 1028 filter: 0xffffffff

< HCI Command: Inquiry (0x01|0x0001) plen 5

lap 0x9e8b33 len 8 num 0

Inquiry (0x01|0x0001) status 0x00 ncmd 1

bdaddr 00:04:0E:8B:74:E1 mode 1 clkoffset 0x2a0d class 0x420214

status 0x00

< HCI Command: Create Connection (0x01|0x0005) plen 13

bdaddr 00:04:0E:8B:74:E1 ptype 0xcc18 rswitch 0x01 clkoffset 0x2a0d (valid)

Packet type: DM1 DM3 DM5 DH1 DH3 DH5

Create Connection (0x01|0x0005) status 0x00 ncmd 1

status 0x00 handle 2 bdaddr 00:04:0E:8B:74:E1 type ACL encrypt 0x00

< ACL data: handle 2 flags 0x02 dlen 12

L2CAP(s): Connect req: psm 1 scid 0x0040

< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4

handle 2 policy 0x0f

Link policy: RSWITCH HOLD SNIFF PARK

Write Link Policy Settings (0x02|0x000d) ncmd 1

status 0x00 handle 2

handle 2 slots 5

handle 2 packets 1

L2CAP(s): Connect rsp: dcid 0x0046 scid 0x0040 result 0 status 0

Connection successful

< ACL data: handle 2 flags 0x02 dlen 12

L2CAP(s): Config req: dcid 0x0046 flags 0x00 clen 0

L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4

     MTU 672

< ACL data: handle 2 flags 0x02 dlen 14

L2CAP(s): Config rsp: scid 0x0046 flags 0x00 result 0 clen 0

Success

handle 2 packets 1

L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 4

     Success

     MTU 672

handle 2 packets 1

< ACL data: handle 2 flags 0x02 dlen 22

L2CAP(d): cid 0x0046 len 18 [psm 1]

       SDP SSA Req: tid 0x0 len 0xd

         pat uuid-16 0x1128 (CIP)

         max 65535

         aid(s) 0x0004 (ProtocolDescList)

         cont 00

handle 2 packets 1

L2CAP(d): cid 0x0040 len 30 [psm 1]

       SDP SSA Rsp: tid 0x0 len 0x19

         count 22

         record #0

             aid 0x0004 (ProtocolDescList)

                < < uuid-16 0x0100 (L2CAP) uint 0x1003 > <

                uuid-16 0x001b (CMTP) > >

         cont 00

< ACL data: handle 2 flags 0x02 dlen 12

L2CAP(s): Disconn req: dcid 0x0046 scid 0x0040

< ACL data: handle 2 flags 0x02 dlen 12

L2CAP(s): Connect req: psm 4099 scid 0x0041

handle 2 packets 1

L2CAP(s): Disconn rsp: dcid 0x0046 scid 0x0040

handle 2 packets 1

L2CAP(s): Connect rsp: dcid 0x0047 scid 0x0041 result 1 status 1

Connection pending - Authentication pending

status 0x00 bdaddr 00:04:0E:8B:74:E1 role 0x01

Role: Slave

bdaddr 00:04:0E:8B:74:E1

< HCI Command: PIN Code Request Reply (0x01|0x000d) plen 23

bdaddr 00:04:0E:8B:74:E1 len 16 pin '****************'

PIN Code Request Reply (0x01|0x000d) ncmd 1

status 0x00 bdaddr 00:04:0E:8B:74:E1

handle 2 slots 5

bdaddr 00:04:0E:8B:74:E1 key 146FD4D8C2F3AAEFC0017E7EA7B19381 type 0

status 0x00 handle 2 encrypt 0x01

L2CAP(s): Connect rsp: dcid 0x0047 scid 0x0041 result 0 status 0

Connection successful

< ACL data: handle 2 flags 0x02 dlen 12

L2CAP(s): Config req: dcid 0x0047 flags 0x00 clen 0

L2CAP(s): Config req: dcid 0x0041 flags 0x00 clen 4

     MTU 672

< ACL data: handle 2 flags 0x02 dlen 14

L2CAP(s): Config rsp: scid 0x0047 flags 0x00 result 0 clen 0

Success

handle 2 packets 1

L2CAP(s): Config rsp: scid 0x0041 flags 0x00 result 0 clen 4

     Success

     MTU 672

handle 2 packets 1

< ACL data: handle 2 flags 0x02 dlen 24

L2CAP(d): cid 0x0047 len 20 [psm 4099]

CMTP: complete CAPI Message: id 0 len 18

CAPI_INTEROPERABILITY_REQ: appl 65535 msgnum 65280 len 10

Selector: 0x0001 (Bluetooth Device Management)

Function: 2 (Get_Profile)

Controller: 0

handle 2 packets 1

L2CAP(d): cid 0x0041 len 85 [psm 4099]

CMTP: complete CAPI Message: id 0 len 83

CAPI_INTEROPERABILITY_CONF: appl 65535 msgnum 65280 len 75

Selector: 0x0001 (Bluetooth Device Management)

Function: 2 (Get_Profile)

Info: 0x0000 (No error)

Number of controllers: 1

< ACL data: handle 2 flags 0x02 dlen 84

L2CAP(d): cid 0x0047 len 80 [psm 4099]

CMTP: complete CAPI Message: id 0 len 18

CAPI_INTEROPERABILITY_REQ: appl 65535 msgnum 65281 len 10

Selector: 0x0001 (Bluetooth Device Management)

Function: 3 (Get_Manufacturer)

Controller: 1

CMTP: complete CAPI Message: id 0 len 18

CAPI_INTEROPERABILITY_REQ: appl 65535 msgnum 65282 len 10

Selector: 0x0001 (Bluetooth Device Management)

Function: 4 (Get_Version)

Controller: 1

CMTP: complete CAPI Message: id 0 len 18

CAPI_INTEROPERABILITY_REQ: appl 65535 msgnum 65283 len 10

Selector: 0x0001 (Bluetooth Device Management)

Function: 5 (Get_Serial_Number)

Controller: 1

CMTP: complete CAPI Message: id 0 len 18

CAPI_INTEROPERABILITY_REQ: appl 65535 msgnum 65284 len 10

Selector: 0x0001 (Bluetooth Device Management)

Function: 2 (Get_Profile)

Controller: 1

handle 2 packets 1

L2CAP(d): cid 0x0041 len 36 [psm 4099]

CMTP: complete CAPI Message: id 0 len 34

CAPI_INTEROPERABILITY_CONF: appl 65535 msgnum 65281 len 26

Selector: 0x0001 (Bluetooth Device Management)

Function: 3 (Get_Manufacturer)

Info: 0x0000 (No error)

Controller: 1

Identification: "AVM Berlin"

L2CAP(d): cid 0x0041 len 42 [psm 4099]

     CMTP: complete CAPI Message: id 0 len 40

       CAPI_INTEROPERABILITY_CONF: appl 65535 msgnum 65282 len 32

         Selector: 0x0001 (Bluetooth Device Management)

         Function: 4 (Get_Version)

           Return value: 0x0000

           Controller: 1

           CAPI: 2.0

           Manufacture: 3.101-04 (49.20)

L2CAP(d): cid 0x0041 len 34 [psm 4099]

     CMTP: complete CAPI Message: id 0 len 32

       CAPI_INTEROPERABILITY_CONF: appl 65535 msgnum 65283 len 24

         Selector: 0x0001 (Bluetooth Device Management)

         Function: 5 (Get_Serial_Number)

           Return value: 0x0000

           Controller: 1

           Serial number: 0750817

L2CAP(d): cid 0x0041 len 85 [psm 4099]

     CMTP: complete CAPI Message: id 0 len 83

       CAPI_INTEROPERABILITY_CONF: appl 65535 msgnum 65284 len 75

         Selector: 0x0001 (Bluetooth Device Management)

         Function: 2 (Get_Profile)

           Info: 0x0000 (No error)

           Controller: 1

           Number of B-channels: 2

           Global options: 0x0031

           B1 protocol support: 0xc000000f

           B2 protocol support: 0x00000b0b

           B3 protocol support: 0x8000000f

           Manufacturer-specific information:

           01 00 00 01 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00

By the way I also have to run the command capiinit to start internet connection. Is there a way to automise the complete procedure and without root privileges? My wife should also connect to the internet without my help.

Thank you in advance.

Orkan

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Hi Orkan,

file a Ubuntu bug report, because this is working fine for me.

Not really, but you can always use sudo.

Regards

Marcel

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