Re: [Bluez-users] rfcomm: Connection Refused

[Johannes Bauer <dfnsonfsduifb@gmx.de>]

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Marcel Holtmann wrote:
> Hi Johannes,
> 
>>I'm having trouble with Bluez. I think I'm almost there, however. Here's
>>the description:
> 
> run "hcidump -X -V" of your connection attempt.

Yes, sir :-)

# hcidump -X -V
HCI sniffer - Bluetooth packet analyzer ver 1.21
device: hci0 snap_len: 1028 filter: 0xffffffff
< HCI Command: Create Connection (0x01|0x0005) plen 13
    bdaddr 00:0E:07:A7:7E:D2 ptype 0xcc18 rswitch 0x01 clkoffset 0x4295
(valid)
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5
> HCI Event: Command Status (0x0f) plen 4
    Create Connection (0x01|0x0005) status 0x00 ncmd 1
> HCI Event: Connect Complete (0x03) plen 11
    status 0x00 handle 7 bdaddr 00:0E:07:A7:7E:D2 type ACL encrypt 0x00
< ACL data: handle 7 flags 0x02 dlen 12
    L2CAP(s): Connect req: psm 3 scid 0x0040
< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4
    handle 7 policy 0x0f
    Link policy: RSWITCH HOLD SNIFF PARK
> HCI Event: Command Complete (0x0e) plen 6
    Write Link Policy Settings (0x02|0x000d) ncmd 1
    status 0x00 handle 7
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 7
> HCI Event: Max Slots Change (0x1b) plen 3
    handle 7 slots 5
> ACL data: handle 7 flags 0x02 dlen 16
    L2CAP(s): Connect rsp: dcid 0x007d scid 0x0040 result 0 status 0
      Connection successful
< ACL data: handle 7 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x007d flags 0x00 clen 4
      MTU 1024
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 7
> ACL data: handle 7 flags 0x02 dlen 18
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 4
      Success
      MTU 674
> ACL data: handle 7 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
      MTU 674
< ACL data: handle 7 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x007d flags 0x00 result 0 clen 0
      Success
< ACL data: handle 7 flags 0x02 dlen 8
    L2CAP(d): cid 0x007d len 4 [psm 3]
      RFCOMM(s): SABM: cr 1 dlci 0 pf 1 ilen 0 fcs 0x1c
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 7
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 7
> ACL data: handle 7 flags 0x02 dlen 8
    L2CAP(d): cid 0x0040 len 4 [psm 3]
      RFCOMM(s): UA: cr 1 dlci 0 pf 1 ilen 0 fcs 0xd7
< ACL data: handle 7 flags 0x02 dlen 18
    L2CAP(d): cid 0x007d len 14 [psm 3]
      RFCOMM(s): PN CMD: cr 1 dlci 0 pf 0 ilen 10 fcs 0x70 mcc_len 8
      dlci 2 frame_type 0 credit_flow 15 pri 7 ack_timer 0
      frame_size 669 max_retrans 0 credits 7
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 7
> ACL data: handle 7 flags 0x02 dlen 19
    L2CAP(d): cid 0x0040 len 15 [psm 3]
      RFCOMM(s): PN RSP: cr 0 dlci 0 pf 0 ilen 10 fcs 0xaa mcc_len 8
      dlci 2 frame_type 0 credit_flow 14 pri 7 ack_timer 0
      frame_size 330 max_retrans 0 credits 7
< ACL data: handle 7 flags 0x02 dlen 8
    L2CAP(d): cid 0x007d len 4 [psm 3]
      RFCOMM(s): SABM: cr 1 dlci 2 pf 1 ilen 0 fcs 0x59
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 7
> ACL data: handle 7 flags 0x02 dlen 8
    L2CAP(d): cid 0x0040 len 4 [psm 3]
      RFCOMM(s): DM: cr 1 dlci 2 pf 1 ilen 0 fcs 0x73
< ACL data: handle 7 flags 0x02 dlen 8
    L2CAP(d): cid 0x007d len 4 [psm 3]
      RFCOMM(s): DISC: cr 1 dlci 0 pf 1 ilen 0 fcs 0xfd
< ACL data: handle 7 flags 0x02 dlen 12
    L2CAP(s): Disconn req: dcid 0x007d scid 0x0040
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 7
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 7
> ACL data: handle 7 flags 0x02 dlen 8
    L2CAP(d): cid 0x0040 len 4 [psm 3]
      RFCOMM(s): UA: cr 1 dlci 0 pf 1 ilen 0 fcs 0xd7
> ACL data: handle 7 flags 0x02 dlen 12
    L2CAP(s): Disconn rsp: dcid 0x007d scid 0x0040
< HCI Command: Disconnect (0x01|0x0006) plen 3
    handle 7 reason 0x13
    Reason: Remote User Terminated Connection
> HCI Event: Command Status (0x0f) plen 4
    Disconnect (0x01|0x0006) status 0x00 ncmd 1
> HCI Event: Disconn Complete (0x05) plen 4
    status 0x00 handle 7 reason 0x16
    Reason: Connection Terminated by Local Host

>># hcitool cc 00:0E:07:A7:7E:D2
>># hcitool auth 00:0E:07:A7:7E:D2
>># hcitool dc 00:0E:07:A7:7E:D2
> 
> 
> Who cares about this commands? These are for testing and development
> only.

Well, I read several HOWTOs, it was mentioned in one.

Hope the log helps,
Greetings,
Johannes
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