Re: [Bluez-users] Can't connect RFCOMM socket: Connection refused

[Paulo Wollny <paulo.wollny@ibdcon.org.br>]

As root, issue the following command:
cd /dev && *mknod rfcomm0* c 216 0 && *mknod* rfcomm1 c 216 1
then, chmod 666 /dev/rfcomm*


neci schrieb:
> Hello,
> i can't create /dev/rfcomm. What is wrong? attach config files and out from 
> hcidump.
>
> # rfcomm connect rfcomm0
> Can't connect RFCOMM socket: Connection refused
>
> # hcidump
> HCI sniffer - Bluetooth packet analyzer ver 1.24
> device: hci0 snap_len: 1028 filter: 0xffffffff
>
> linux:/etc # hcidump
> HCI sniffer - Bluetooth packet analyzer ver 1.24
> device: hci0 snap_len: 1028 filter: 0xffffffff
> < HCI Command: Create Connection (0x01|0x0005) plen 13
>   
>> HCI Event: Command Status (0x0f) plen 4
>> HCI Event: Connect Complete (0x03) plen 11
>>     
> < ACL data: handle 42 flags 0x02 dlen 12
>     L2CAP(s): Connect req: psm 3 scid 0x0040
> < HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4
>   
>> HCI Event: Number of Completed Packets (0x13) plen 5
>> HCI Event: Max Slots Change (0x1b) plen 3
>> HCI Event: Command Complete (0x0e) plen 6
>> ACL data: handle 42 flags 0x02 dlen 16
>>     
>     L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
>       Connection successful
> < ACL data: handle 42 flags 0x02 dlen 16
>     L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
>       MTU 1024
>   
>> HCI Event: Number of Completed Packets (0x13) plen 5
>> ACL data: handle 42 flags 0x02 dlen 17
>> ACL data: handle 42 flags 0x01 dlen 1
>>     
>     L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 4
>       Success
>       MTU 335
>   
>> ACL data: handle 42 flags 0x02 dlen 16
>>     
>     L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
>       MTU 335
> < ACL data: handle 42 flags 0x02 dlen 14
>     L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 0
>       Success
> < ACL data: handle 42 flags 0x02 dlen 8
>     L2CAP(d): cid 0x0040 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
>> HCI Event: Number of Completed Packets (0x13) plen 5
>> ACL data: handle 42 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 42 flags 0x02 dlen 18
>     L2CAP(d): cid 0x0040 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 330 max_retrans 0 credits 7
>   
>> HCI Event: Number of Completed Packets (0x13) plen 5
>> ACL data: handle 42 flags 0x02 dlen 18
>>     
>     L2CAP(d): cid 0x0040 len 14 [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 0 ack_timer 0
>       frame_size 330 max_retrans 0 credits 4
> < ACL data: handle 42 flags 0x02 dlen 8
>     L2CAP(d): cid 0x0040 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
>> HCI Event: Page Scan Repetition Mode Change (0x20) plen 7
>> HCI Event: Role Change (0x12) plen 8
>> HCI Event: Max Slots Change (0x1b) plen 3
>> HCI Event: Link Key Request (0x17) plen 6
>>     
> < HCI Command: Link Key Request Reply (0x01|0x000b) plen 22
>   
>> HCI Event: Command Complete (0x0e) plen 10
>> ACL data: handle 42 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 42 flags 0x02 dlen 8
>     L2CAP(d): cid 0x0040 len 4 [psm 3]
>       RFCOMM(s): DISC: cr 1 dlci 0 pf 1 ilen 0 fcs 0xfd
> < ACL data: handle 42 flags 0x02 dlen 12
>     L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
>   
>> HCI Event: Number of Completed Packets (0x13) plen 5
>> HCI Event: Number of Completed Packets (0x13) plen 5
>> ACL data: handle 42 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 42 flags 0x02 dlen 12
>>     
>     L2CAP(s): Disconn rsp: dcid 0x0040 scid 0x0040
> < HCI Command: Disconnect (0x01|0x0006) plen 3
>   
>> HCI Event: Command Status (0x0f) plen 4
>> HCI Event: Disconn Complete (0x05) plen 4
>>     
>> ------------------------------------------------------------------------
>>
>> #
>> # HCI daemon configuration file.
>> #
>> # $Id: hcid.conf,v 1.7 2004/12/13 14:16:03 holtmann Exp $
>> #
>>
>> # HCId options
>> options {
>> 	# Automatically initialize new devices
>> 	autoinit yes;
>>
>> 	# Security Manager mode
>> 	#   none - Security manager disabled
>> 	#   auto - Use local PIN for incoming connections
>> 	#   user - Always ask user for a PIN
>> 	#
>> 	security auto;
>>
>> 	# Pairing mode
>> 	#   none  - Pairing disabled
>> 	#   multi - Allow pairing with already paired devices
>> 	#   once  - Pair once and deny successive attempts
>> 	pairing multi;
>>
>> 	# PIN helper
>> 	# if you want a interactiv query of your pin use /usr/bin/bluepin
>> 	# /bin/bluepincat is using the pin in the /etc/bluetooth/pin file
>> 	# pin_helper /usr/bin/bluepin;
>> 	pin_helper /bin/bluepincat;
>>
>> 	# D-Bus PIN helper
>> 	#dbus_pin_helper;
>> }
>>
>> # Default settings for HCI devices
>> device {
>> 	# Local device name
>> 	#   %d - device id
>> 	#   %h - host name
>> 	name "PC";
>>
>> 	# Local device class
>> 	# e.g.
>> 	#  0xsss100 = Computer
>> 	#  0xsss104 = Computer Desktop
>> 	#  0xsss108 = Computer Server
>> 	#  0xsss10c = Computer Laptop
>> 	# The 'sss' above defines the service-class (not quite, only the
>> 	# first 11 bits, the next 11 define the device-class, than 2 format bits.)
>> 	# See https://www.bluetooth.org/foundry/assignnumb/document/baseband
>> 	# for more information.
>> 	# 0x100bbb stands for "Object Transfer  (v-Inbox, v-Folder, ...)"
>> 	# 0x020bbb stands for "Networking (LAN, Ad hoc, ...)"
>> 	class 0xdb0100;
>>
>> 	# Default packet type
>> 	#pkt_type DH1,DM1,HV1;
>>
>> 	# Inquiry and Page scan
>> 	# valid parameters: enable | disable
>> 	iscan enable;
>> 	pscan enable;
>>
>> 	# Default link mode
>> 	#   none   - no specific policy 
>> 	#   accept - always accept incoming connections
>> 	#   master - become master on incoming connections,
>> 	#            deny role switch on outgoing connections
>> 	lm accept;
>>
>> 	# Default link policy
>> 	#   none    - no specific policy
>> 	#   rswitch - allow role switch
>> 	#   hold    - allow hold mode
>> 	#   sniff   - allow sniff mode
>> 	#   park    - allow park mode
>> 	lp rswitch,hold,sniff,park;
>>
>> 	# Authentication and Encryption (Security Mode 3)
>> 	auth disable;
>> 	encrypt disable;
>> }
>>     
>> ------------------------------------------------------------------------
>>
>> #
>> # RFCOMM configuration file.
>> #
>> # $Id: rfcomm.conf,v 1.1 2002/10/07 05:58:18 maxk Exp $
>> #
>>
>> rfcomm0 {
>> 	# Automatically bind the device at startup
>> 	bind yes;
>>
>> 	# Bluetooth address of the device
>> 	device 00:01:E3:58:23:EA;
>>
>> 	# RFCOMM channel for the connection
>> 	channel	1;
>>
>> 	# Description of the connection
>> 	comment "Mobil";
>> }
>>     
>> ------------------------------------------------------------------------
>>
>> -------------------------------------------------------------------------
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