Question: How to debug Windows10 Bluetooth stack? what tools to use?
Setup: embedded Linux board connected via bluetooth to Windows10 machine
Connection: The Linux board is connecting to Windows10 machine using bluetooth bnep service, it works well.
Issue: It works well until Linux board is rebooted, then when Linux board is trying to connect to Windows machine, windows is always refusing to connect to bnep service as if it does not supported it.
(this is my understanding from Linux logs, and I do not know how to get any logs form windows side)
Question 2: Why is windows refusing the connection?
Windows10 machine Bluetooth:
Manufacturer: Cambridge Silicon Radio Ltd. Hardware Ids: USB\VID_0A12&PID_0001&REV_8891
Driver version: 10.0.17134.1067
Linux board log created with btmon: complete log wireshark version , syslog:bluetoothd syslog
Bluetooth monitor ver 5.48
= New Index: 00:04:F3:0E:1C:61 (Primary,UART,hci0) [hci0] 0.964086
HCI Event: Command Status (0x0f) plen 4 #2 [hci0] 6.047900
Create Connection (0x01|0x0005) ncmd 1
Status: Success (0x00)
> HCI Event: Connect Complete (0x03) plen 11 #3 [hci0] 11.174878
Status: Page Timeout (0x04)
Handle: 3839
Address: 00:1A:7D:DA:71:11 (OUI 00-1A-7D)
Link type: ACL (0x01)
Encryption: Disabled (0x00)
@ Connect Failed: 00:1A:7D:DA:71:11 (0) status 0x04
HCI Event: Command Status (0x0f) plen 4 #5 [hci0] 21.943722
Create Connection (0x01|0x0005) ncmd 1
Status: Success (0x00)
> HCI Event: Role Change (0x12) plen 8 #6 [hci0] 22.302343
Status: Success (0x00)
Address: 00:1A:7D:DA:71:11 (OUI 00-1A-7D)
Role: Slave (0x01)
> HCI Event: Connect Complete (0x03) plen 11 #7 [hci0] 22.336363
Status: Success (0x00)
Handle: 21
Address: 00:1A:7D:DA:71:11 (OUI 00-1A-7D)
Link type: ACL (0x01)
Encryption: Disabled (0x00)
HCI Event: Command Status (0x0f) plen 4 #9 [hci0] 22.337862
Read Remote Supported Features (0x01|0x001b) ncmd 1
Status: Success (0x00)
> HCI Event: Read Remote Supported Featu.. (0x0b) plen 11 #10 [hci0] 22.352464
Status: Success (0x00)
Handle: 21
Features: 0xff 0xff 0x8f 0xfe 0xdb 0xff 0x5b 0x87
3 slot packets
5 slot packets
Encryption
Slot offset
Timing accuracy
Role switch
Hold mode
Sniff mode
Park state
Power control requests
Channel quality driven data rate (CQDDR)
SCO link
HV2 packets
HV3 packets
u-law log synchronous data
A-law log synchronous data
CVSD synchronous data
Paging parameter negotiation
Power control
Transparent synchronous data
Broadcast Encryption
Enhanced Data Rate ACL 2 Mbps mode
Enhanced Data Rate ACL 3 Mbps mode
Enhanced inquiry scan
Interlaced inquiry scan
Interlaced page scan
RSSI with inquiry results
Extended SCO link (EV3 packets)
EV4 packets
EV5 packets
AFH capable slave
AFH classification slave
LE Supported (Controller)
3-slot Enhanced Data Rate ACL packets
5-slot Enhanced Data Rate ACL packets
Sniff subrating
Pause encryption
AFH capable master
AFH classification master
Enhanced Data Rate eSCO 2 Mbps mode
Enhanced Data Rate eSCO 3 Mbps mode
3-slot Enhanced Data Rate eSCO packets
Extended Inquiry Response
Simultaneous LE and BR/EDR (Controller)
Secure Simple Pairing
Encapsulated PDU
Non-flushable Packet Boundary Flag
Link Supervision Timeout Changed Event
Inquiry TX Power Level
Enhanced Power Control
Extended features
HCI Event: Command Status (0x0f) plen 4 #12 [hci0] 22.353738
Read Remote Extended Features (0x01|0x001c) ncmd 1
Status: Success (0x00)
> HCI Event: Read Remote Extended Features (0x23) plen 13 #13 [hci0] 22.359895
Status: Success (0x00)
Handle: 21
Page: 1/1
Features: 0x07 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Secure Simple Pairing (Host Support)
LE Supported (Host)
Simultaneous LE and BR/EDR (Host)
HCI Event: Command Status (0x0f) plen 4 #15 [hci0] 22.360591
Remote Name Request (0x01|0x0019) ncmd 1
Status: Success (0x00)
> HCI Event: Remote Name Req Complete (0x07) plen 255 #16 [hci0] 22.369271
Status: Success (0x00)
Address: 00:1A:7D:DA:71:11 (OUI 00-1A-7D)
Name: PC0184691
HCI Event: Command Status (0x0f) plen 4 #18 [hci0] 22.371420
Authentication Requested (0x01|0x0011) ncmd 1
Status: Success (0x00)
> HCI Event: Link Key Request (0x17) plen 6 #19 [hci0] 22.371517
Address: 00:1A:7D:DA:71:11 (OUI 00-1A-7D)
HCI Event: Command Complete (0x0e) plen 10 #21 [hci0] 22.372259
Link Key Request Reply (0x01|0x000b) ncmd 1
Status: Success (0x00)
Address: 00:1A:7D:DA:71:11 (OUI 00-1A-7D)
@ Device Connected: 00:1A:7D:DA:71:11 (0) flags 0x0000
0a 09 50 43 30 31 38 34 36 39 31 ..PC0184691
> HCI Event: Auth Complete (0x06) plen 3 #22 [hci0] 22.492450
Status: Success (0x00)
Handle: 21
HCI Event: Command Status (0x0f) plen 4 #24 [hci0] 22.493058
Set Connection Encryption (0x01|0x0013) ncmd 1
Status: Success (0x00)
> HCI Event: Encryption Change (0x08) plen 4 #25 [hci0] 22.527926
Status: Success (0x00)
Handle: 21
Encryption: Enabled with E0 (0x01)
HCI Event: Number of Completed Packets (0x13) plen 5 #27 [hci0] 22.536970
Num handles: 1
Handle: 21
Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 16 #28 [hci0] 22.537208
L2CAP: Information Response (0x0b) ident 1 len 8
Type: Extended features supported (0x0002)
Result: Success (0x0000)
Features: 0x000000b8
Enhanced Retransmission Mode
Streaming Mode
FCS Option
Fixed Channels
HCI Event: Number of Completed Packets (0x13) plen 5 #30 [hci0] 22.543231
Num handles: 1
Handle: 21
Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 20 #31 [hci0] 22.543692
L2CAP: Information Response (0x0b) ident 2 len 12
Type: Fixed channels supported (0x0003)
Result: Success (0x0000)
Channels: 0x00000000000000f2
L2CAP Signaling (BR/EDR)
Attribute Protocol
L2CAP Signaling (LE)
Security Manager (LE)
Security Manager (BR/EDR)
HCI Event: Number of Completed Packets (0x13) plen 5 #33 [hci0] 22.549461
Num handles: 1
Handle: 21
Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 16 #34 [hci0] 22.549800
L2CAP: Connection Response (0x03) ident 3 len 8
Destination CID: 64
Source CID: 64
Result: Connection pending (0x0001)
Status: No further information available (0x0000)
> ACL Data RX: Handle 21 flags 0x02 dlen 16 #35 [hci0] 37.590680
L2CAP: Connection Response (0x03) ident 3 len 8
Destination CID: 0
Source CID: 0
Result: Connection refused - PSM not supported (0x0002)
Status: No further information available (0x0000)
HCI Event: Command Status (0x0f) plen 4 #37 [hci0] 39.591886
Disconnect (0x01|0x0006) ncmd 1
Status: Success (0x00)
> HCI Event: Disconnect Complete (0x05) plen 4 #38 [hci0] 39.782849
Status: Success (0x00)
Handle: 21
Reason: Connection Terminated By Local Host (0x16)
@ Device Disconnected: 00:1A:7D:DA:71:11 (0) reason 2
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