Hello,
I am trying to get a simple RFCOMM client/server example to work
between two Ubuntu 10.04.1 LTS installations. The examples I am using
are the rfcomm-server and rfcomm-client found here: http://people.csail.mit.edu/albert/bluez-intro/x502.html
I have four of these Ubuntu installations in total, and between two of
them this example works without any problems, however between the
other two I always get EACCES errors when attempting to perform
connect(). All of the machines have the libbluetooth3 version
4.60-0ubuntu8 installed. If I run l2ping between the machines where I
am experiencing this error, or from one of the working ones to one of
the ones that is giving me problems, I get a permission denied error
as well:
sudo l2ping 00:02:72:AC:BE:D7
Can't connect: Permission denied
The following are the hcidumps of one of the failed client-server
sessions followed by the working one. I can see that the failed one
is trying to use authentication, but running
sudo hciconfig hci0 noauth
on both ends has had no effect.
FAILED:
HCI sniffer - Bluetooth packet analyzer ver 1.42
device: hci0 snap_len: 1028 filter: 0xffffffff
1295913294.810214 < HCI Command: Create Connection (0x01|0x0005) plen 13
C0 BE AC 72 02 00 18 CC 02 00 00 00 01
1295913294.812852 > HCI Event: Command Status (0x0f) plen 4
00 01 05 04
1295913297.584461 > HCI Event: Role Change (0x12) plen 8
00 C0 BE AC 72 02 00 01
1295913297.758436 > HCI Event: Connect Complete (0x03) plen 11
00 0B 00 C0 BE AC 72 02 00 01 00
1295913297.758481 < HCI Command: Read Remote Supported Features (0x01|
0x001b) plen 2
0B 00
1295913297.760422 > HCI Event: Max Slots Change (0x1b) plen 3
0B 00 05
1295913297.762426 > HCI Event: Command Status (0x0f) plen 4
00 01 1B 04
1295913297.764415 > HCI Event: Read Remote Supported Features (0x0b)
plen 11
00 0B 00 FF FF 8F FE 9B FF 79 83
1295913297.764432 < HCI Command: Read Remote Extended Features (0x01|
0x001c) plen 3
0B 00 01
1295913297.767419 > HCI Event: Command Status (0x0f) plen 4
00 01 1C 04
1295913297.771425 > HCI Event: Read Remote Extended Features (0x23)
plen 13
00 0B 00 01 01 01 00 00 00 00 00 00 00
1295913297.771459 < HCI Command: Authentication Requested (0x01|
0x0011) plen 2
0B 00
1295913297.773413 > HCI Event: Command Status (0x0f) plen 4
00 01 11 04
1295913297.804036 < HCI Command: Remote Name Request (0x01|0x0019)
plen 10
C0 BE AC 72 02 00 02 00 00 00
1295913297.853420 > HCI Event: Link Key Request (0x17) plen 6
C0 BE AC 72 02 00
1295913297.855404 > HCI Event: Command Status (0x0f) plen 4
00 01 19 04
1295913297.855421 < HCI Command: Link Key Request Negative Reply (0x01|
0x000c) plen 6
C0 BE AC 72 02 00
1295913297.859401 > HCI Event: Command Complete (0x0e) plen 10
01 0C 04 00 C0 BE AC 72 02 00
1295913297.861401 > HCI Event: IO Capability Request (0x31) plen 6
C0 BE AC 72 02 00
1295913297.861540 < HCI Command: IO Capability Request Negative Reply
(0x01|0x0034) plen 7
C0 BE AC 72 02 00 18
1295913297.863413 > HCI Event: Command Complete (0x0e) plen 10
01 34 04 00 C0 BE AC 72 02 00
1295913297.865404 > HCI Event: Simple Pairing Complete (0x36) plen 7
05 C0 BE AC 72 02 00
1295913297.867400 > HCI Event: Auth Complete (0x06) plen 3
05 0B 00
1295913297.911393 > HCI Event: Remote Name Req Complete (0x07) plen 255
00 C0 BE AC 72 02 00 66 69 6C 65 73 65 72 76 65 72 2D 31 2D
30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1295913299.864140 < HCI Command: Disconnect (0x01|0x0006) plen 3
0B 00 13
1295913299.868112 > HCI Event: Command Status (0x0f) plen 4
00 01 06 04
1295913299.945109 > HCI Event: Disconn Complete (0x05) plen 4
00 0B 00 16
SUCCESSFUL:
HCI sniffer - Bluetooth packet analyzer ver 1.42
device: hci0 snap_len: 1028 filter: 0xffffffff
1295913138.120190 < HCI Command: Create Connection (0x01|0x0005) plen 13
DE D2 B0 6C 23 00 18 CC 02 00 00 00 01
1295913139.994246 > HCI Event: Command Status (0x0f) plen 4
00 01 05 04
1295913143.297146 > HCI Event: Role Change (0x12) plen 8
00 DE D2 B0 6C 23 00 01
1295913144.020230 > HCI Event: Connect Complete (0x03) plen 11
00 2E 00 DE D2 B0 6C 23 00 01 00
1295913144.020284 < HCI Command: Read Remote Supported Features (0x01|
0x001b) plen 2
2E 00
1295913144.021047 > HCI Event: Page Scan Repetition Mode Change (0x20)
plen 7
DE D2 B0 6C 23 00 00
1295913144.022043 > HCI Event: Max Slots Change (0x1b) plen 3
2E 00 05
1295913144.029093 > HCI Event: Command Status (0x0f) plen 4
00 01 1B 04
1295913144.029110 < HCI Command: Remote Name Request (0x01|0x0019)
plen 10
DE D2 B0 6C 23 00 02 00 00 00
1295913144.042183 > HCI Event: Read Remote Supported Features (0x0b)
plen 11
00 2E 00 FF FF 8F FE 9B FF 79 83
1295913144.042219 < ACL data: handle 46 flags 0x02 dlen 10
L2CAP(s): Info req: type 2
1295913144.050136 > HCI Event: Command Status (0x0f) plen 4
00 01 19 04
1295913144.071127 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.073166 > ACL data: handle 46 flags 0x02 dlen 16
L2CAP(s): Info rsp: type 2 result 0
Extended feature mask 0x0080
1295913144.073187 < ACL data: handle 46 flags 0x02 dlen 10
L2CAP(s): Info req: type 3
1295913144.081133 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.084145 > ACL data: handle 46 flags 0x02 dlen 20
L2CAP(s): Info rsp: type 3 result 0
Unknown (len 8)
1295913144.084165 < ACL data: handle 46 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 3 scid 0x0040
1295913144.092113 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.105080 > ACL data: handle 46 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 1 status 0
Connection pending - No futher information available
1295913144.106153 > ACL data: handle 46 flags 0x02 dlen 10
L2CAP(s): Info req: type 2
1295913144.106166 < ACL data: handle 46 flags 0x02 dlen 16
L2CAP(s): Info rsp: type 2 result 0
Extended feature mask 0x0080
1295913144.117181 > ACL data: handle 46 flags 0x02 dlen 10
L2CAP(s): Info req: type 3
1295913144.117193 < ACL data: handle 46 flags 0x02 dlen 20
L2CAP(s): Info rsp: type 3 result 0
Unknown (len 8)
1295913144.129071 > ACL data: handle 46 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
Connection successful
1295913144.129095 < ACL data: handle 46 flags 0x02 dlen 16
L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
MTU 1013
1295913144.131162 > HCI Event: Remote Name Req Complete (0x07) plen 255
00 DE D2 B0 6C 23 00 6C 69 6E 75 78 2D 64 65 76 2D 30 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1295913144.134154 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.137148 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.147181 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.147191 > ACL data: handle 46 flags 0x02 dlen 18
L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 4
MTU 1013
1295913144.149079 > ACL data: handle 46 flags 0x02 dlen 16
L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
MTU 1013
1295913144.149097 < ACL data: handle 46 flags 0x02 dlen 18
L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 4
MTU 1013
1295913144.149133 < ACL data: handle 46 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
1295913144.158153 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.160111 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.162150 > ACL data: handle 46 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
1295913144.162184 < ACL data: handle 46 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 1008 max_retrans 0 credits 7
1295913144.170142 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.172052 > ACL data: handle 46 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 7 ack_timer 0
frame_size 1008 max_retrans 0 credits 7
1295913144.172082 < ACL data: handle 46 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
1295913144.180152 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.181179 > ACL data: handle 46 flags 0x02 dlen 8
L2CAP(d): cid 0x0040 len 4 [psm 3]
RFCOMM(s): UA: cr 1 dlci 2 pf 1 ilen 0 fcs 0x92
1295913144.181220 < ACL data: handle 46 flags 0x02 dlen 12
L2CAP(d): cid 0x0040 len 8 [psm 3]
RFCOMM(s): MSC CMD: cr 1 dlci 0 pf 0 ilen 4 fcs 0x70 mcc_len 2
dlci 2 fc 0 rtc 1 rtr 1 ic 0 dv 1 b1 1 b2 1 b3 0 len 0
1295913144.183165 > ACL data: handle 46 flags 0x02 dlen 12
L2CAP(d): cid 0x0040 len 8 [psm 3]
RFCOMM(s): MSC CMD: cr 0 dlci 0 pf 0 ilen 4 fcs 0xaa mcc_len 2
dlci 2 fc 0 rtc 1 rtr 1 ic 0 dv 1 b1 1 b2 1 b3 0 len 0
1295913144.183209 < ACL data: handle 46 flags 0x02 dlen 12
L2CAP(d): cid 0x0040 len 8 [psm 3]
RFCOMM(s): MSC RSP: cr 1 dlci 0 pf 0 ilen 4 fcs 0x70 mcc_len 2
dlci 2 fc 0 rtc 1 rtr 1 ic 0 dv 1 b1 1 b2 1 b3 0 len 0
1295913144.192141 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.194056 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.195060 > ACL data: handle 46 flags 0x02 dlen 12
L2CAP(d): cid 0x0040 len 8 [psm 3]
RFCOMM(s): MSC RSP: cr 0 dlci 0 pf 0 ilen 4 fcs 0xaa mcc_len 2
dlci 2 fc 0 rtc 1 rtr 1 ic 0 dv 1 b1 1 b2 1 b3 0 len 0
1295913144.195104 < ACL data: handle 46 flags 0x02 dlen 9
L2CAP(d): cid 0x0040 len 5 [psm 3]
RFCOMM(d): UIH: cr 1 dlci 2 pf 1 ilen 0 fcs 0x86 credits 33
1295913144.195119 < ACL data: handle 46 flags 0x02 dlen 14
L2CAP(d): cid 0x0040 len 10 [psm 3]
RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 6 fcs 0x9a
68 65 6C 6C 6F 21
1295913144.195133 < ACL data: handle 46 flags 0x02 dlen 8
L2CAP(d): cid 0x0040 len 4 [psm 3]
RFCOMM(s): DISC: cr 1 dlci 2 pf 1 ilen 0 fcs 0xb8
1295913144.196121 > ACL data: handle 46 flags 0x02 dlen 9
L2CAP(d): cid 0x0040 len 5 [psm 3]
RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 33
1295913144.202165 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.206151 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 02 00
1295913144.207169 > ACL data: handle 46 flags 0x02 dlen 8
L2CAP(d): cid 0x0040 len 4 [psm 3]
RFCOMM(s): DISC: cr 0 dlci 2 pf 1 ilen 0 fcs 0xd9
1295913144.207206 < ACL data: handle 46 flags 0x02 dlen 8
L2CAP(d): cid 0x0040 len 4 [psm 3]
RFCOMM(s): UA: cr 0 dlci 2 pf 1 ilen 0 fcs 0xf3
1295913144.209223 > ACL data: handle 46 flags 0x02 dlen 8
L2CAP(d): cid 0x0040 len 4 [psm 3]
RFCOMM(s): UA: cr 1 dlci 2 pf 1 ilen 0 fcs 0x92
1295913144.209299 < ACL data: handle 46 flags 0x02 dlen 8
L2CAP(d): cid 0x0040 len 4 [psm 3]
RFCOMM(s): DM: cr 0 dlci 2 pf 1 ilen 0 fcs 0x12
1295913144.217193 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.219152 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913144.219157 > ACL data: handle 46 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
1295913146.203916 < ACL data: handle 46 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
1295913146.203965 < ACL data: handle 46 flags 0x02 dlen 12
L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
1295913146.206144 > ACL data: handle 46 flags 0x02 dlen 8
L2CAP(d): cid 0x0040 len 4 [psm 3]
RFCOMM(s): DISC: cr 0 dlci 0 pf 1 ilen 0 fcs 0x9c
1295913146.213138 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913146.215152 > HCI Event: Number of Completed Packets (0x13) plen 5
01 2E 00 01 00
1295913146.215157 > ACL data: handle 46 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
1295913146.217135 > ACL data: handle 46 flags 0x02 dlen 12
L2CAP(s): Disconn rsp: dcid 0x0040 scid 0x0040
1295913148.215868 < HCI Command: Disconnect (0x01|0x0006) plen 3
2E 00 13
1295913148.224078 > HCI Event: Command Status (0x0f) plen 4
00 01 06 04
1295913148.235139 > HCI Event: Disconn Complete (0x05) plen 4
00 2E 00 16
Any assistance in resolving this would be appreciated.
Thanks,
Andrew
--
Andrew MacIsaac | Computer Engineer
Spark Integration Technologies Inc.
1880 West First Ave, Suite 200, Vancouver, BC, V6J 1G5 | T 604 736 6675 x 109 | F 604 648 9544
http://www.sparkintegration.com
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