Hi
I downloaded latest bluez codes and tried to send one file from my mobile (44:C1:5C:40:0C:BC) to the Bluetooth adapter in my Ubuntu machine. The log shows the connection succeeds, while the mobile phone sends one disconnect request to the Bluetooth adapter during the file transfer.
I tried to track the log, found the following function call, hci_acldata_packet(hdev, skb) ->l2cap_recv_acldata()->l2cap_recv_frame()->l2cap_sig_channel()->l2cap_bredr_sig_cmd()->l2cap_disconnect_req
Could anyone figure out why and how could I succeed the file transfer?
Thanks.
Christina
Steps:
1. In my Ubuntu machine: sudo bluetoothd; sudo hciconfig hci0 up
2. sudo bluetoothctl ; remove 44:C1:5C:40:0C:BC ; scan on ; scan off; connect 44:C1:5C:40:0C:BC
bluetootctl log: [bluetooth]# connect 44:C1:5C:40:0C:BC
Attempting to connect to 44:C1:5C:40:0C:BC
[CHG] Device 44:C1:5C:40:0C:BC Connected: yes
[CHG] Device 44:C1:5C:40:0C:BC UUIDs has unsupported type
[CHG] Device 44:C1:5C:40:0C:BC Paired: yes
Connection successful
3. send one pic from my mobile device to bt adpter in ubuntu,
then there is one msg show on the phone screen “ Bluetooth share: File test.jpg not sent”, and the file fails to send out
below is the btmon log:
> ACL Data RX: Handle 69 flags 0x02 dlen 12 [hci0] 47.691763
L2CAP: Connection Request (0x02) ident 17 len 4
PSM: 1 (0x0001)
Source CID: 65
< ACL Data TX: Handle 69 flags 0x00 dlen 16 [hci0] 47.691900
L2CAP: Connection Response (0x03) ident 17 len 8
Destination CID: 64
Source CID: 65
Result: Connection successful (0x0000)
Status: No further information available (0x0000)
< ACL Data TX: Handle 69 flags 0x00 dlen 23 [hci0] 47.691913
L2CAP: Configure Request (0x04) ident 12 len 15
Destination CID: 65
Flags: 0x0000
Option: Retransmission and Flow Control (0x04)
Mode: Basic (0x00)
TX window size: 0
Max transmit: 0
Retransmission timeout: 0
Monitor timeout: 0
Maximum PDU size: 0
> ACL Data RX: Handle 69 flags 0x02 dlen 23 [hci0] 47.731657
L2CAP: Configure Request (0x04) ident 18 len 15
Destination CID: 64
Flags: 0x0000
Option: Retransmission and Flow Control (0x04)
Mode: Basic (0x00)
TX window size: 0
Max transmit: 0
Retransmission timeout: 0
Monitor timeout: 0
Maximum PDU size: 0
< ACL Data TX: Handle 69 flags 0x00 dlen 18 [hci0] 47.731747
L2CAP: Configure Response (0x05) ident 18 len 10
Destination CID: 65
Flags: 0x0000
Result: Success (0x0000)
Option: Maximum Transmission Unit (0x01)
MTU: 672
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 47.733663
Num handles: 1
Handle: 69
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 47.734601
Num handles: 1
Handle: 69
Count: 1
> ACL Data RX: Handle 69 flags 0x02 dlen 18 [hci0] 47.735352
L2CAP: Configure Response (0x05) ident 12 len 10
Destination CID: 64
Flags: 0x0000
Result: Success (0x0000)
Option: Maximum Transmission Unit (0x01)
MTU: 672
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 47.736599
Num handles: 1
Handle: 69
Count: 1
> ACL Data RX: Handle 69 flags 0x02 dlen 24 [hci0] 47.736726
Channel: 64 len 20 [PSM 1 mode 0] {chan 0}
SDP: Service Search Attribute Request (0x06) tid 0 len 15
Search pattern: [len 5]
Sequence (6) with 3 bytes [8 extra bits] len 5
UUID (3) with 2 bytes [0 extra bits] len 3
L2CAP (0x0100)
Max record count: 65535
Attribute list: [len 7]
Sequence (6) with 5 bytes [8 extra bits] len 7
Unsigned Integer (1) with 4 bytes [0 extra bits] len 5
0x0000ffff
Continuation state: 0
< ACL Data TX: Handle 69 flags 0x00 dlen 310 [hci0] 47.737044
< ACL Data TX: Handle 69 flags 0x01 dlen 310 [hci0] 47.737061
Channel: 65 len 616 [PSM 1 mode 0] {chan 0}
SDP: Service Search Attribute Response (0x07) tid 0 len 611
Attribute bytes: 608
Attribute list: [len 163] {position 0}
Attribute: Service Record Handle (0x0000) [len 2]
0x00010001
Attribute: Service Class ID List (0x0001) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Generic Access Profile (0x1800)
Attribute: Protocol Descriptor List (0x0004) [len 2]
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
L2CAP (0x0100)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x001f
Sequence (6) with 9 bytes [8 extra bits] len 11
UUID (3) with 2 bytes [0 extra bits] len 3
ATT (0x0007)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0001
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0008
Attribute: Browse Group List (0x0005) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Public Browse Root (0x1002)
Attribute: Documentation URL (0x000a) [len 2]
http://www.bluez.org/ [len 21]
Attribute: Client Executable URL (0x000b) [len 2]
http://www.bluez.org/ [len 21]
Attribute: Icon URL (0x000c) [len 2]
http://www.bluez.org/ [len 21]
Attribute: Unknown (0x0100) [len 2]
Generic Access Profile [len 22]
Attribute: Unknown (0x0102) [len 2]
BlueZ [len 5]
Attribute list: [len 88] {position 1}
Attribute: Service Record Handle (0x0000) [len 2]
0x00010002
Attribute: Service Class ID List (0x0001) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Generic Attribute Profile (0x1801)
Attribute: Protocol Descriptor List (0x0004) [len 2]
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
L2CAP (0x0100)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x001f
Sequence (6) with 9 bytes [8 extra bits] len 11
UUID (3) with 2 bytes [0 extra bits] len 3
ATT (0x0007)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0010
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0010
Attribute: Browse Group List (0x0005) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Public Browse Root (0x1002)
Attribute: Unknown (0x0100) [len 2]
Generic Attribute Profile [len 25]
Attribute: Unknown (0x0102) [len 2]
BlueZ [len 5]
Attribute list: [len 74] {position 2}
Attribute: Service Record Handle (0x0000) [len 2]
0x00010003
Attribute: Service Class ID List (0x0001) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Unknown (0xa004)
Attribute: Protocol Descriptor List (0x0004) [len 2]
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
L2CAP (0x0100)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x001f
Sequence (6) with 9 bytes [8 extra bits] len 11
UUID (3) with 2 bytes [0 extra bits] len 3
ATT (0x0007)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x001b
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0025
Attribute: Browse Group List (0x0005) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Public Browse Root (0x1002)
Attribute: Unknown (0x0100) [len 2]
Thermometer [len 11]
Attribute: Unknown (0x0102) [len 2]
BlueZ [len 5]
Attribute list: [len 91] {position 3}
Attribute: Service Record Handle (0x0000) [len 2]
0x00010004
Attribute: Service Class ID List (0x0001) [len 2]
UUID (3) with 16 bytes [0 extra bits] len 17
4f0ac096-35d4-4911-9631-dea8dc74eefe
Attribute: Protocol Descriptor List (0x0004) [len 2]
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
L2CAP (0x0100)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x001f
Sequence (6) with 9 bytes [8 extra bits] len 11
UUID (3) with 2 bytes [0 extra bits] len 3
ATT (0x0007)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0xfffa
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0xffff
Attribute: Browse Group List (0x0005) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Public Browse Root (0x1002)
Attribute: Unknown (0x0100) [len 2]
Weight Service [len 14]
Attribute: Unknown (0x0102) [len 2]
BlueZ [len 5]
Attribute list: [len 100] {position 4}
Attribute: Service Record Handle (0x0000) [len 2]
0x00010005
Attribute: Service Class ID List (0x0001) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
A/V Remote Control Target (0x110c)
Attribute: Protocol Descriptor List (0x0004) [len 2]
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
L2CAP (0x0100)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0017
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
AVCTP (0x0017)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0103
Attribute: Browse Group List (0x0005) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Public Browse Root (0x1002)
Attribute: Bluetooth Profile Descriptor List (0x0009) [len 2]
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
A/V Remote Control (0x110e)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0104
Attribute: Additional Protocol Descriptor List (0x000d) [len 2]
Sequence (6) with 16 bytes [8 extra bits] len 18
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
L2CAP (0x0100)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x001b
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
AVCTP (0x0017)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0103
Attribute: Unknown (0x0100) [len 2]
AVRCP TG [len 8]
Attribute: Unknown (0x0311) [len 2]
0x005f
Attribute list: [len 77] {position 5}
Attribute: Service Record Handle (0x0000) [len 2]
0x00010006
Attribute: Service Class ID List (0x0001) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
A/V Remote Control (0x110e)
Attribute: Protocol Descriptor List (0x0004) [len 2]
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
L2CAP (0x0100)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0017
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
AVCTP (0x0017)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0103
Attribute: Browse Group List (0x0005) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Public Browse Root (0x1002)
Attribute: Bluetooth Profile Descriptor List (0x0009) [len 2]
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
A/V Remote Control (0x110e)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0105
Attribute: Unknown (0x0100) [len 2]
AVRCP CT [len 8]
Attribute: Unknown (0x0311) [len 2]
0x000f
Continuation state: 0
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 47.753657
Num handles: 1
Handle: 69
Count: 2
> ACL Data RX: Handle 69 flags 0x02 dlen 24 [hci0] 47.771657
Channel: 64 len 20 [PSM 1 mode 0] {chan 0}
SDP: Service Search Attribute Request (0x06) tid 1 len 15
Search pattern: [len 5]
Sequence (6) with 3 bytes [8 extra bits] len 5
UUID (3) with 2 bytes [0 extra bits] len 3
PnP Information (0x1200)
Max record count: 65535
Attribute list: [len 7]
Sequence (6) with 5 bytes [8 extra bits] len 7
Unsigned Integer (1) with 4 bytes [0 extra bits] len 5
0x0000ffff
Continuation state: 0
< ACL Data TX: Handle 69 flags 0x00 dlen 88 [hci0] 47.771913
Channel: 65 len 84 [PSM 1 mode 0] {chan 0}
SDP: Service Search Attribute Response (0x07) tid 1 len 79
Attribute bytes: 76
Attribute list: [len 72] {position 0}
Attribute: Service Record Handle (0x0000) [len 2]
0x00010000
Attribute: Service Class ID List (0x0001) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
PnP Information (0x1200)
Attribute: Browse Group List (0x0005) [len 2]
UUID (3) with 2 bytes [0 extra bits] len 3
Public Browse Root (0x1002)
Attribute: Bluetooth Profile Descriptor List (0x0009) [len 2]
Sequence (6) with 6 bytes [8 extra bits] len 8
UUID (3) with 2 bytes [0 extra bits] len 3
PnP Information (0x1200)
Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
0x0103
Attribute: Unknown (0x0200) [len 2]
0x0103
Attribute: Unknown (0x0201) [len 2]
0x1d6b
Attribute: Unknown (0x0202) [len 2]
0x0246
Attribute: Unknown (0x0203) [len 2]
0x0503
Attribute: Unknown (0x0204) [len 2]
true
Attribute: Unknown (0x0205) [len 2]
0x0002
Continuation state: 0
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 47.823659
Num handles: 1
Handle: 69
Count: 1
> ACL Data RX: Handle 69 flags 0x02 dlen 12 [hci0] 50.087863
L2CAP: Disconnection Request (0x06) ident 19 len 4
Destination CID: 64
Source CID: 65
< ACL Data TX: Handle 69 flags 0x00 dlen 12 [hci0] 50.087970
L2CAP: Disconnection Response (0x07) ident 19 len 4
Destination CID: 64
Source CID: 65
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 50.139637
Num handles: 1
Handle: 69
Count: 1
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