Thanks Marcel.
Yes, for secure connection the LTK is generated locally.
But issue here is observed that after Pairing is complete the key distribution is not completed from Master.
i.e. After Slave sends the "Signature key:" but Master doesn't share any key. Attached logs.
HI Joshua,
Please help to check with latest kernel and update.
--
Thanks,
Avinash K
-----Original Message-----
From: Marcel Holtmann [mailto:marcel@xxxxxxxxxxxx]
Sent: 22 March 2017 13:06
To: Wong, Joshua Weng Onn <joshua.weng.onn.wong@xxxxxxxxx>
Cc: Bluez mailing list <linux-bluetooth@xxxxxxxxxxxxxxx>; Wong, Mun choy <mun.choy.wong@xxxxxxxxx>; Zulqarnain, Adam <adam.zulqarnain@xxxxxxxxx>; Avinash Kadam <avinashk@xxxxxxxxxxx>
Subject: [EXT] Re: Unexpected SMP Command 0x17
External Email
----------------------------------------------------------------------
Hi Joshua,
> I am seeing an error during the LE pairing process which makes the pairing to fail. I have two DUTs which uses the Marvell 88W8897.
> Here are my BT settings for both master and slave:
>
> Master:
> $ btmgmt info
> current settings: powered connectable discoverable bondable ssp br/edr le secure-conn
>
> Slave:
> $ btmgmt info
> Current settings: powered connectable bondable le advertising secure-conn
>
> When I initiate the pairing process from the master, I observed the message:
> "Bluetooth: hci0 unexpected SMP command 0x0a from 74:c6:3b:ab:68:ea"
>
> Where 74:c6:3b:ab:68:ea is the address of the slave device.
>
> In the btmon log of the master device, it is observed that after the Slave device has transmitted the keys, the Master does not transmit it. Hence, the Slave is not receiving the keys and thus disconnects the link and pairing is failed.
>
>> ACL Data RX: Handle 128 flags 0x02 dlen 21 [hci0] 124.801098
> SMP: Encryption Information (0x06) len 16
> Long term key: 9ac691e96e85e82ca68f4b6d2abec80f
>> HCI Event: Encryption Change (0x08) plen 4 [hci0] 124.801261
> Status: Success (0x00)
> Handle: 128
> Encryption: Enabled with AES-CCM (0x01)
>> ACL Data RX: Handle 128 flags 0x02 dlen 15 [hci0] 124.812761
> SMP: Master Identification (0x07) len 10
> EDIV: 0xea3f
> Rand: 0x806e542a78f55d7c
>> ACL Data RX: Handle 128 flags 0x02 dlen 21 [hci0] 124.812782
> SMP: Signing Information (0x0a) len 16
> Signature key: 4451b8ae0eff90f0a47fb96be53479fb
>> HCI Event: Disconnect Complete (0x05) plen 4 [hci0] 154.839591
> Status: Success (0x00)
> Handle: 128
> Reason: Remote User Terminated Connection (0x13)
>
> => At this point, Master should start sending LTK to slave, but Master doesn't send the LTK so Slave disconnects the link and pairing is failed.
>
> What could possibly cause the master to not send the LTK? My kernel version is v4.1.27 and bluez stack is v5.40. I would appreciate advice on this.
if this is LE Secure Connections, then the LTK is no longer distributed. It is being calculated from ECDH. Please include the complete SMP exchanges. Only then we can see what is going on.
Also keep in mind that 4.1.x kernels are actually rather old. The latest one is 4.10.x and if there is a bug, you should verify that it also happens with the latest kernel.
Regards
Marcel
< HCI Command: LE Create Connection (0x08|0x000d) plen 25 [hci0] 752.498799
Scan interval: 60.000 msec (0x0060)
Scan window: 30.000 msec (0x0030)
Filter policy: White list is not used (0x00)
Peer address type: Public (0x00)
Peer address: 74:C6:3B:AB:68:EA (OUI 74-C6-3B)
Own address type: Public (0x00)
Min connection interval: 50.00 msec (0x0028)
Max connection interval: 70.00 msec (0x0038)
Connection latency: 0x0000
Supervision timeout: 420 msec (0x002a)
Min connection length: 0.000 msec (0x0000)
Max connection length: 0.000 msec (0x0000)
> HCI Event: Command Status (0x0f) plen 4 [hci0] 752.505320
LE Create Connection (0x08|0x000d) ncmd 1
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 19 [hci0] 753.061210
LE Connection Complete (0x01)
Status: Success (0x00)
Handle: 128
Role: Master (0x00)
Peer address type: Public (0x00)
Peer address: 74:C6:3B:AB:68:EA (OUI 74-C6-3B)
Connection interval: 67.50 msec (0x0036)
Connection latency: 0.00 msec (0x0000)
Supervision timeout: 420 msec (0x002a)
Master clock accuracy: 0x01
@ Device Connected: 74:C6:3B:AB:68:EA (1) flags 0x0000
< HCI Command: LE Read Remote Used Features (0x08|0x0016) plen 2 [hci0] 753.063118
Handle: 128
> HCI Event: Command Status (0x0f) plen 4 [hci0] 753.068964
LE Read Remote Used Features (0x08|0x0016) ncmd 1
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 12 [hci0] 753.249205
LE Read Remote Used Features (0x04)
Status: Success (0x00)
Handle: 128
Features: 0x4f 0x00 0x00 0x00 0x00 0x00 0x00 0x00
LE Encryption
Connection Parameter Request Procedure
Extended Reject Indication
Slave-initiated Features Exchange
LL Privacy
< ACL Data TX: Handle 128 flags 0x00 dlen 11 [hci0] 753.250193
SMP: Pairing Request (0x01) len 6
IO capability: KeyboardDisplay (0x04)
OOB data: Authentication data not present (0x00)
Authentication requirement: Bonding, MITM, SC, No Keypresses (0x0d)
Max encryption key size: 16
Initiator key distribution: EncKey Sign LinkKey (0x0d)
Responder key distribution: EncKey IdKey Sign LinkKey (0x0f)
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 753.262956
ATT: Exchange MTU Request (0x02) len 2
Client RX MTU: 517
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 753.315441
ATT: Exchange MTU Request (0x02) len 2
Client RX MTU: 517
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.315718
Num handles: 1
Handle: 128
Count: 1
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 753.316060
ATT: Exchange MTU Response (0x03) len 2
Server RX MTU: 517
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.316008
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 11 [hci0] 753.382935
SMP: Pairing Response (0x02) len 6
IO capability: DisplayYesNo (0x01)
OOB data: Authentication data not present (0x00)
Authentication requirement: Bonding, MITM, SC, No Keypresses (0x0d)
Max encryption key size: 16
Initiator key distribution: EncKey Sign (0x05)
Responder key distribution: EncKey Sign (0x05)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.383085
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 753.383401
ATT: Exchange MTU Response (0x03) len 2
Server RX MTU: 517
< ACL Data TX: Handle 128 flags 0x00 dlen 69 [hci0] 753.385376
SMP: Pairing Public Key (0x0c) len 64
X: 17780eede45fb83689cabb6803f5f0de1da6cfe3d51a3cf5553eafb94910c5b5
Y: 85e0b332945e7190afd622a1fdd5aa5d365722319a25fc8d7d860d02dc60b4af
< ACL Data TX: Handle 128 flags 0x00 dlen 11 [hci0] 753.385625
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x0001-0xffff
Attribute group type: Primary Service (0x2800)
> ACL Data RX: Handle 128 flags 0x02 dlen 11 [hci0] 753.451682
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x0001-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.451999
Num handles: 1
Handle: 128
Count: 1
< ACL Data TX: Handle 128 flags 0x00 dlen 18 [hci0] 753.452165
ATT: Read By Group Type Response (0x11) len 13
Attribute data length: 6
Attribute group list: 2 entries
Handle range: 0x0001-0x0005
UUID: Generic Access Profile (0x1800)
Handle range: 0x0006-0x0009
UUID: Generic Attribute Profile (0x1801)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.452420
Num handles: 1
Handle: 128
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.518890
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 69 [hci0] 753.518986
SMP: Pairing Public Key (0x0c) len 64
X: 1da0aaa663fe5fd9da217d0da76c3ee298ba52150bbf2785fddd38f464faef84
Y: 8f378562b6e025f2e2dc4e1e05e501f599f4bb63efde8c46cc98a12cf8cc16f5
> ACL Data RX: Handle 128 flags 0x02 dlen 21 [hci0] 753.519023
SMP: Pairing Confirm (0x03) len 16
Confim value: 906ada103cf5a740c67a316e15c5e133
> ACL Data RX: Handle 128 flags 0x02 dlen 18 [hci0] 753.519487
ATT: Read By Group Type Response (0x11) len 13
Attribute data length: 6
Attribute group list: 2 entries
Handle range: 0x0001-0x0005
UUID: Generic Access Profile (0x1800)
Handle range: 0x0006-0x0009
UUID: Generic Attribute Profile (0x1801)
< ACL Data TX: Handle 128 flags 0x00 dlen 21 [hci0] 753.523611
SMP: Pairing Random (0x04) len 16
Random value: 52bd97adce116ec51777d770ac159c35
< ACL Data TX: Handle 128 flags 0x00 dlen 11 [hci0] 753.524480
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x000a-0xffff
Attribute group type: Primary Service (0x2800)
> ACL Data RX: Handle 128 flags 0x02 dlen 11 [hci0] 753.586528
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x000a-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.586580
Num handles: 1
Handle: 128
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.586824
Num handles: 1
Handle: 128
Count: 1
< ACL Data TX: Handle 128 flags 0x00 dlen 9 [hci0] 753.586903
ATT: Error Response (0x01) len 4
Read By Group Type Request (0x10)
Handle: 0x000a
Error: Attribute Not Found (0x0a)
> ACL Data RX: Handle 128 flags 0x02 dlen 21 [hci0] 753.652953
SMP: Pairing Random (0x04) len 16
Random value: e7af794cd9f6401a29aaedc8fac8db18
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.653123
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 9 [hci0] 753.653417
ATT: Error Response (0x01) len 4
Read By Group Type Request (0x10)
Handle: 0x000a
Error: Attribute Not Found (0x0a)
@ User Confirmation Request: 74:C6:3B:AB:68:EA (1) hint 0 value 706962
< ACL Data TX: Handle 128 flags 0x00 dlen 9 [hci0] 753.685954
ATT: Write Request (0x12) len 4
Handle: 0x0009
Data: 0200
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.720303
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 5 [hci0] 753.856549
ATT: Write Response (0x13) len 0
> ACL Data RX: Handle 128 flags 0x02 dlen 9 [hci0] 753.856852
ATT: Write Request (0x12) len 4
Handle: 0x0009
Data: 0200
< ACL Data TX: Handle 128 flags 0x00 dlen 5 [hci0] 753.857115
ATT: Write Response (0x13) len 0
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 753.857138
ATT: Read Request (0x0a) len 2
Handle: 0x0003
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.922945
Num handles: 1
Handle: 128
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 753.923257
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 753.991563
ATT: Read Request (0x0a) len 2
Handle: 0x0003
> ACL Data RX: Handle 128 flags 0x02 dlen 10 [hci0] 753.991866
ATT: Read Response (0x0b) len 5
Value: 426c75655a
< ACL Data TX: Handle 128 flags 0x00 dlen 12 [hci0] 753.992217
ATT: Read Response (0x0b) len 7
Value: 67697261666665
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 753.992256
ATT: Read Request (0x0a) len 2
Handle: 0x0005
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 754.057946
Num handles: 1
Handle: 128
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 754.058278
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 754.126628
ATT: Read Response (0x0b) len 2
Value: 0000
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 754.126945
ATT: Read Request (0x0a) len 2
Handle: 0x0005
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 754.127655
ATT: Read Response (0x0b) len 2
Value: 1001
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 754.192985
Num handles: 1
Handle: 128
Count: 1
< ACL Data TX: Handle 128 flags 0x00 dlen 21 [hci0] 760.114731
SMP: Pairing DHKey Check (0x0d) len 16
E: f3373b60ba9063449ebef0f3dd7d9781
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 760.132942
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 21 [hci0] 760.200373
SMP: Pairing DHKey Check (0x0d) len 16
E: 975be5ee4a205e1ac4811baa970abf10
< HCI Command: LE Start Encryption (0x08|0x0019) plen 28 [hci0] 760.200595
Handle: 128
Random number: 0x0000000000000000
Encrypted diversifier: 0x0000
Long term key: 7ee01e3f27750b9393533941a4f3e198
> HCI Event: Command Status (0x0f) plen 4 [hci0] 760.206677
LE Start Encryption (0x08|0x0019) ncmd 1
Status: Success (0x00)
> ACL Data RX: Handle 128 flags 0x02 dlen 21 [hci0] 760.470529
SMP: Signing Information (0x0a) len 16
Signature key: 1866336f92238bf953611245b7ad51f7
> HCI Event: Encryption Change (0x08) plen 4 [hci0] 760.470733
Status: Success (0x00)
Handle: 128
Encryption: Enabled with AES-CCM (0x01)
> HCI Event: Disconnect Complete (0x05) plen 4 [hci0] 790.576443
Status: Success (0x00)
Handle: 128
Reason: Remote User Terminated Connection (0x13)
@ Device Disconnected: 74:C6:3B:AB:68:EA (1) reason 3> HCI Event: LE Meta Event (0x3e) plen 19 [hci0] 201.875863
LE Connection Complete (0x01)
Status: Success (0x00)
Handle: 128
Role: Slave (0x01)
Peer address type: Public (0x00)
Peer address: 74:C6:3B:AB:68:E0 (OUI 74-C6-3B)
Connection interval: 67.50 msec (0x0036)
Connection latency: 0.00 msec (0x0000)
Supervision timeout: 420 msec (0x002a)
Master clock accuracy: 0x01
@ Device Connected: 74:C6:3B:AB:68:E0 (1) flags 0x0000
< HCI Command: LE Read Remote Used Fe.. (0x08|0x0016) plen 2 [hci0] 201.877629
Handle: 128
> HCI Event: Command Status (0x0f) plen 4 [hci0] 201.884437
LE Read Remote Used Features (0x08|0x0016) ncmd 1
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 12 [hci0] 202.063367
LE Read Remote Used Features (0x04)
Status: Success (0x00)
Handle: 128
Features: 0x4f 0x00 0x00 0x00 0x00 0x00 0x00 0x00
LE Encryption
Connection Parameter Request Procedure
Extended Reject Indication
Slave-initiated Features Exchange
LL Privacy
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 202.076740
ATT: Exchange MTU Request (0x02) len 2
Client RX MTU: 517
> ACL Data RX: Handle 128 flags 0x02 dlen 11 [hci0] 202.130925
SMP: Pairing Request (0x01) len 6
IO capability: KeyboardDisplay (0x04)
OOB data: Authentication data not present (0x00)
Authentication requirement: Bonding, MITM, SC, No Keypresses (0x0d)
Max encryption key size: 16
Initiator key distribution: EncKey Sign LinkKey (0x0d)
Responder key distribution: EncKey IdKey Sign LinkKey (0x0f)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.131213
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 202.131481
ATT: Exchange MTU Request (0x02) len 2
Client RX MTU: 517
< ACL Data TX: Handle 128 flags 0x00 dlen 11 [hci0] 202.131616
SMP: Pairing Response (0x02) len 6
IO capability: DisplayYesNo (0x01)
OOB data: Authentication data not present (0x00)
Authentication requirement: Bonding, MITM, SC, No Keypresses (0x0d)
Max encryption key size: 16
Initiator key distribution: EncKey Sign (0x05)
Responder key distribution: EncKey Sign (0x05)
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 202.132157
ATT: Exchange MTU Response (0x03) len 2
Server RX MTU: 517
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 202.198437
ATT: Exchange MTU Response (0x03) len 2
Server RX MTU: 517
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.198721
Num handles: 1
Handle: 128
Count: 1
< ACL Data TX: Handle 128 flags 0x00 dlen 11 [hci0] 202.199227
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x0001-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.264636
Num handles: 1
Handle: 128
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.265101
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 69 [hci0] 202.265382
SMP: Pairing Public Key (0x0c) len 64
X: 17780eede45fb83689cabb6803f5f0de1da6cfe3d51a3cf5553eafb94910c5b5
Y: 85e0b332945e7190afd622a1fdd5aa5d365722319a25fc8d7d860d02dc60b4af
> ACL Data RX: Handle 128 flags 0x02 dlen 11 [hci0] 202.265849
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x0001-0xffff
Attribute group type: Primary Service (0x2800)
< ACL Data TX: Handle 128 flags 0x00 dlen 69 [hci0] 202.281447
SMP: Pairing Public Key (0x0c) len 64
X: 1da0aaa663fe5fd9da217d0da76c3ee298ba52150bbf2785fddd38f464faef84
Y: 8f378562b6e025f2e2dc4e1e05e501f599f4bb63efde8c46cc98a12cf8cc16f5
< ACL Data TX: Handle 128 flags 0x00 dlen 21 [hci0] 202.281508
SMP: Pairing Confirm (0x03) len 16
Confim value: 906ada103cf5a740c67a316e15c5e133
< ACL Data TX: Handle 128 flags 0x00 dlen 18 [hci0] 202.281958
ATT: Read By Group Type Response (0x11) len 13
Attribute data length: 6
Attribute group list: 2 entries
Handle range: 0x0001-0x0005
UUID: Generic Access Profile (0x1800)
Handle range: 0x0006-0x0009
UUID: Generic Attribute Profile (0x1801)
> ACL Data RX: Handle 128 flags 0x02 dlen 18 [hci0] 202.334680
ATT: Read By Group Type Response (0x11) len 13
Attribute data length: 6
Attribute group list: 2 entries
Handle range: 0x0001-0x0005
UUID: Generic Access Profile (0x1800)
Handle range: 0x0006-0x0009
UUID: Generic Attribute Profile (0x1801)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.334962
Num handles: 1
Handle: 128
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.335273
Num handles: 1
Handle: 128
Count: 1
< ACL Data TX: Handle 128 flags 0x00 dlen 11 [hci0] 202.335631
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x000a-0xffff
Attribute group type: Primary Service (0x2800)
> ACL Data RX: Handle 128 flags 0x02 dlen 21 [hci0] 202.399670
SMP: Pairing Random (0x04) len 16
Random value: 52bd97adce116ec51777d770ac159c35
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.399938
Num handles: 1
Handle: 128
Count: 1
< ACL Data TX: Handle 128 flags 0x00 dlen 21 [hci0] 202.399986
SMP: Pairing Random (0x04) len 16
Random value: e7af794cd9f6401a29aaedc8fac8db18
> ACL Data RX: Handle 128 flags 0x02 dlen 11 [hci0] 202.400459
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x000a-0xffff
Attribute group type: Primary Service (0x2800)
@ User Confirmation Request: 74:C6:3B:AB:68:E0 (1) hint 0 value 706962
< ACL Data TX: Handle 128 flags 0x00 dlen 9 [hci0] 202.400956
ATT: Error Response (0x01) len 4
Read By Group Type Request (0x10)
Handle: 0x000a
Error: Attribute Not Found (0x0a)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.400898
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 9 [hci0] 202.468436
ATT: Error Response (0x01) len 4
Read By Group Type Request (0x10)
Handle: 0x000a
Error: Attribute Not Found (0x0a)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.468638
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 9 [hci0] 202.535940
ATT: Write Request (0x12) len 4
Handle: 0x0009
Data: 0200
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.536128
Num handles: 1
Handle: 128
Count: 1
< ACL Data TX: Handle 128 flags 0x00 dlen 5 [hci0] 202.597986
ATT: Write Response (0x13) len 0
< ACL Data TX: Handle 128 flags 0x00 dlen 9 [hci0] 202.598036
ATT: Write Request (0x12) len 4
Handle: 0x0009
Data: 0200
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.670869
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 5 [hci0] 202.737205
ATT: Write Response (0x13) len 0
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.737378
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 202.737672
ATT: Read Request (0x0a) len 2
Handle: 0x0003
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 202.737767
ATT: Read Request (0x0a) len 2
Handle: 0x0003
< ACL Data TX: Handle 128 flags 0x00 dlen 10 [hci0] 202.737914
ATT: Read Response (0x0b) len 5
Value: 426c75655a
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.805865
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 12 [hci0] 202.872207
ATT: Read Response (0x0b) len 7
Value: 67697261666665
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.872429
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 202.872742
ATT: Read Request (0x0a) len 2
Handle: 0x0005
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 202.873489
ATT: Read Response (0x0b) len 2
Value: 0000
< ACL Data TX: Handle 128 flags 0x00 dlen 7 [hci0] 202.873543
ATT: Read Request (0x0a) len 2
Handle: 0x0005
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 202.940673
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 7 [hci0] 203.009022
ATT: Read Response (0x0b) len 2
Value: 1001
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 203.009069
Num handles: 1
Handle: 128
Count: 1
> ACL Data RX: Handle 128 flags 0x02 dlen 21 [hci0] 208.948405
SMP: Pairing DHKey Check (0x0d) len 16
E: f3373b60ba9063449ebef0f3dd7d9781
< ACL Data TX: Handle 128 flags 0x00 dlen 21 [hci0] 208.948615
SMP: Pairing DHKey Check (0x0d) len 16
E: 975be5ee4a205e1ac4811baa970abf10
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 209.083476
Num handles: 1
Handle: 128
Count: 1
> HCI Event: LE Meta Event (0x3e) plen 13 [hci0] 209.083793
LE Long Term Key Request (0x05)
Handle: 128
Random number: 0x0000000000000000
Encrypted diversifier: 0x0000
< HCI Command: LE Long Term Key Requ.. (0x08|0x001a) plen 18 [hci0] 209.083869
Handle: 128
Long term key: 7ee01e3f27750b9393533941a4f3e198
> HCI Event: Command Complete (0x0e) plen 6 [hci0] 209.087194
LE Long Term Key Request Reply (0x08|0x001a) ncmd 1
Status: Success (0x00)
Handle: 128
> HCI Event: Encryption Change (0x08) plen 4 [hci0] 209.218486
Status: Success (0x00)
Handle: 128
Encryption: Enabled with AES-CCM (0x01)
< ACL Data TX: Handle 128 flags 0x00 dlen 21 [hci0] 209.218733
SMP: Signing Information (0x0a) len 16
Signature key: 1866336f92238bf953611245b7ad51f7
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 209.352241
Num handles: 1
Handle: 128
Count: 1
< HCI Command: Disconnect (0x01|0x0006) plen 3 [hci0] 239.261952
Handle: 128
Reason: Remote User Terminated Connection (0x13)
> HCI Event: Command Status (0x0f) plen 4 [hci0] 239.268876
Disconnect (0x01|0x0006) ncmd 1
Status: Success (0x00)
> HCI Event: Disconnect Complete (0x05) plen 4 [hci0] 239.392130
Status: Success (0x00)
Handle: 128
Reason: Connection Terminated By Local Host (0x16)
@ Device Disconnected: 74:C6:3B:AB:68:E0 (1) reason 2
< HCI Command: LE Set Advertising Pa.. (0x08|0x0006) plen 15 [hci0] 239.404501
Min advertising interval: 1280.000 msec (0x0800)
Max advertising interval: 1280.000 msec (0x0800)
Type: Connectable undirected - ADV_IND (0x00)
Own address type: Public (0x00)
Direct address type: Public (0x00)
Direct address: 00:00:00:00:00:00 (OUI 00-00-00)
Channel map: 37, 38, 39 (0x07)
Filter policy: Allow Scan Request from Any, Allow Connect Request from Any (0x00)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 239.411359
LE Set Advertising Parameters (0x08|0x0006) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Advertise Enable (0x08|0x000a) plen 1 [hci0] 239.411615
Advertising: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 239.416877
LE Set Advertise Enable (0x08|0x000a) ncmd 1
Status: Success (0x00)
