Re: Can't connect Bluetooth Devices

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Hi Steffen,

* Steffen Becker <steffen.becker@xxxxxxxxxxxxx> [2012-05-03 00:54:20 +0200]:

> Hello everyone,
> 
> Am 24.04.2012 13:35, schrieb Steffen Becker:
> >Hello,
> >
> >I still have a problem to connect my bluetooth devices via pand
> >command. I've been searching the internet and asked in forums, but
> >i didn't get an answer.
> >
> >I have 2 gentoo-PCs with a Bluetooth-3.0 Dongle at each PC.
> >Circa 2 weeks ago, everything worked. BlueZ-4.96 was installed and
> >I had no problems to connect my devices via pand and via rfcomm
> >command.
> >But then I asked you for an SSP debug mode patch, because I wanted
> >to sniff my rfcomm connection. At the same time BlueZ-4.99 was
> >released and so I installed the new BlueZ-version and the patch.
> >I also deleted the stored linkkey and I was happy that I was able
> >to sniff my rfcomm-connection.
> >But thenceforth I can't connect my devices via pand command.
> >
> >Then I tried to install the BlueZ-4.99 *without* the patch, but I
> >still couldn't connect via pand.
> >I also tried to install BlueZ-4.96, but the problem was still the
> >same. So I think it's no problem of the patch or the newer
> >BlueZ-version, but I really have no idea what's wrong.
> >
> >If you need any of my configuration-files, just tell me and I will
> >send it.
> >
> >In the end, I show the hcidump message when I try to connect via
> >pand command.
> >
> >Hope anyone can help me.
> >
> >Regards,
> >Steffen
> >
> >
> ># hcidump -i hci0
> >HCI sniffer - Bluetooth packet analyzer ver 2.3
> >device: hci0 snap_len: 1028 filter: 0xffffffffffffffff
> >> HCI Event: Connect Request (0x04) plen 10
> >    bdaddr 00:02:72:AE:58:73 class 0x420100 type ACL
> >< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
> >    bdaddr 00:02:72:AE:58:73 role 0x00
> >    Role: Master
> >> HCI Event: Command Status (0x0f) plen 4
> >    Accept Connection Request (0x01|0x0009) status 0x00 ncmd 1
> >> HCI Event: Role Change (0x12) plen 8
> >    status 0x00 bdaddr 00:02:72:AE:58:73 role 0x00
> >    Role: Master
> >> HCI Event: Connect Complete (0x03) plen 11
> >    status 0x00 handle 11 bdaddr 00:02:72:AE:58:73 type ACL encrypt 0x00
> >< HCI Command: Read Remote Supported Features (0x01|0x001b) plen 2
> >    handle 11
> >> HCI Event: Max Slots Change (0x1b) plen 3
> >    handle 11 slots 5
> >> HCI Event: Command Status (0x0f) plen 4
> >    Read Remote Supported Features (0x01|0x001b) status 0x00 ncmd 1
> >> HCI Event: Read Remote Supported Features (0x0b) plen 11
> >    status 0x00 handle 11
> >    Features: 0xff 0xff 0x8f 0xfe 0x9b 0xff 0x79 0x87
> >< HCI Command: Read Remote Extended Features (0x01|0x001c) plen 3
> >    handle 11 page 1
> >> HCI Event: Command Status (0x0f) plen 4
> >    Read Remote Extended Features (0x01|0x001c) status 0x00 ncmd 1
> >> HCI Event: Read Remote Extended Features (0x23) plen 13
> >    status 0x00 handle 11 page 1 max 1
> >    Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00
> >< HCI Command: Remote Name Request (0x01|0x0019) plen 10
> >    bdaddr 00:02:72:AE:58:73 mode 2 clkoffset 0x0000
> >> HCI Event: Command Status (0x0f) plen 4
> >    Remote Name Request (0x01|0x0019) status 0x00 ncmd 1
> >> HCI Event: Remote Name Req Complete (0x07) plen 255
> >    status 0x00 bdaddr 00:02:72:AE:58:73 name 'bluetooth1-0'
> >> HCI Event: IO Capability Response (0x32) plen 9
> >    bdaddr 00:02:72:AE:58:73 capability 0x03 oob 0x00 auth 0x00
> >    Capability: NoInputNoOutput (OOB data not present)
> >    Authentication: No Bonding (No MITM Protection)
> >> HCI Event: IO Capability Request (0x31) plen 6
> >    bdaddr 00:02:72:AE:58:73
> >< HCI Command: IO Capability Request Reply (0x01|0x002b) plen 9
> >    bdaddr 00:02:72:AE:58:73 capability 0x03 oob 0x00 auth 0x00
> >    Capability: NoInputNoOutput (OOB data not present)
> >    Authentication: No Bonding (No MITM Protection)
> >> HCI Event: Command Complete (0x0e) plen 10
> >    IO Capability Request Reply (0x01|0x002b) ncmd 1
> >    status 0x00 bdaddr 00:02:72:AE:58:73
> >> HCI Event: User Confirmation Request (0x33) plen 10
> >    bdaddr 00:02:72:AE:58:73 passkey 800553
> >< HCI Command: User Confirmation Request Reply (0x01|0x002c) plen 6
> >    bdaddr 00:02:72:AE:58:73
> >> HCI Event: Command Complete (0x0e) plen 10
> >    User Confirmation Request Reply (0x01|0x002c) ncmd 1
> >    status 0x00 bdaddr 00:02:72:AE:58:73
> >> HCI Event: Simple Pairing Complete (0x36) plen 7
> >    status 0x00 bdaddr 00:02:72:AE:58:73
> >> HCI Event: Link Key Notification (0x18) plen 23
> >    bdaddr 00:02:72:AE:58:73 key E1C30FE5E1D620AC6DC78BB5A4AC299A type 4
> >    Type: Unauthenticated Combination Key
> >> HCI Event: Encrypt Change (0x08) plen 4
> >    status 0x00 handle 11 encrypt 0x01
> >> ACL data: handle 11 flags 0x02 dlen 10
> >    L2CAP(s): Info req: type 2
> >< ACL data: handle 11 flags 0x00 dlen 16
> >    L2CAP(s): Info rsp: type 2 result 0
> >      Extended feature mask 0x00b8
> >        Enhanced Retransmission mode
> >        Streaming mode
> >        FCS Option
> >        Fixed Channels
> >> ACL data: handle 11 flags 0x02 dlen 10
> >    L2CAP(s): Info req: type 3
> >< ACL data: handle 11 flags 0x00 dlen 20
> >    L2CAP(s): Info rsp: type 3 result 0
> >      Fixed channel list 0x00000002
> >        L2CAP Signalling Channel
> >> HCI Event: Number of Completed Packets (0x13) plen 5
> >    handle 11 packets 2
> >> ACL data: handle 11 flags 0x02 dlen 12
> >    L2CAP(s): Connect req: psm 15 scid 0x0040
> >< ACL data: handle 11 flags 0x00 dlen 16
> >    L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 1 status 0
> >      Connection pending - No futher information available
> >< ACL data: handle 11 flags 0x00 dlen 10
> >    L2CAP(s): Info req: type 2
> >> HCI Event: Number of Completed Packets (0x13) plen 5
> >    handle 11 packets 2
> >> ACL data: handle 11 flags 0x02 dlen 16
> >    L2CAP(s): Info rsp: type 2 result 0
> >      Extended feature mask 0x00b8
> >        Enhanced Retransmission mode
> >        Streaming mode
> >        FCS Option
> >        Fixed Channels
> >< ACL data: handle 11 flags 0x00 dlen 10
> >    L2CAP(s): Info req: type 3
> >> ACL data: handle 11 flags 0x02 dlen 20
> >    L2CAP(s): Info rsp: type 3 result 0
> >      Fixed channel list 0x00000002
> >        L2CAP Signalling Channel
> >< ACL data: handle 11 flags 0x00 dlen 16
> >    L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 1 status 2
> >      Connection pending - Authorization pending
> >< ACL data: handle 11 flags 0x00 dlen 16
> >    L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 3 status 0
> >      Connection refused - security block
> >> HCI Event: Number of Completed Packets (0x13) plen 5
> >    handle 11 packets 2
> >> HCI Event: Number of Completed Packets (0x13) plen 5
> >    handle 11 packets 1
> >> HCI Event: Disconn Complete (0x05) plen 4
> >    status 0x00 handle 11 reason 0x13
> >    Reason: Remote User Terminated Connection
> >
> >-- 
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> >More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> That's still my problem, but now I have a different question regarding
> to that:
> As I said, I deleted the stored linkkey to get my rfcomm-connection sniffed.
> Now I think this (deleting the linkkey) is the problem why I can't
> connect via pand. Am I right?
> With "deleting" I mean: I just deleted the file "linkkeys" in
> /var/lib/bluetooth/<local-bdaddr>/
> 
> So my question is: How can I create a new linkkey (so that hopefully my
> pand-connection works) ?

A linkkey is created during the pairing procedure, just pair your
devices and you will be done.
And let only bluetoothd touch the /var/lib/bluetooth
directory, don't touch there yourself.

	Gustavo

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