LE device automatic pairing

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* LE device automatic pairing
@ 2015-05-08 14:31 Tom Harada
  2015-05-11  8:03 ` Luiz Augusto von Dentz
  0 siblings, 1 reply; 6+ messages in thread
From: Tom Harada @ 2015-05-08 14:31 UTC (permalink / raw)
  To: linux-bluetooth

Hi all,

On a system with kernel 4.0.1 and BlueZ 5.22 or newer, I've noticed that 
BlueZ seems to be automatically pairing with LE devices as soon as it 
detects their advertisements. Is this an intended feature? If so, how 
can I prevent it from happening?

Thanks,
Tom

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: LE device automatic pairing
  2015-05-08 14:31 LE device automatic pairing Tom Harada
@ 2015-05-11  8:03 ` Luiz Augusto von Dentz
  2015-05-11  8:04   ` Luiz Augusto von Dentz
  0 siblings, 1 reply; 6+ messages in thread
From: Luiz Augusto von Dentz @ 2015-05-11  8:03 UTC (permalink / raw)
  To: Tom Harada; +Cc: linux-bluetooth@vger.kernel.org

Hi Tom,

On Fri, May 8, 2015 at 5:31 PM, Tom Harada <tharada@lampreynetworks.com> wrote:
> Hi all,
>
> On a system with kernel 4.0.1 and BlueZ 5.22 or newer, I've noticed that
> BlueZ seems to be automatically pairing with LE devices as soon as it
> detects their advertisements. Is this an intended feature? If so, how can I
> prevent it from happening?

It should be pairing, bluetoothd will create objects for devices found
during the scan but they are considered temporary as long as you don't
request to connect or pair, if you connect to it will still not be
paired but it will be stored persistently in the storage so you can
access after restarting bluetoothd.

With this in mind, what had made you believe we were performing
pairing during scanning?

-- 
Luiz Augusto von Dentz

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: LE device automatic pairing
  2015-05-11  8:03 ` Luiz Augusto von Dentz
@ 2015-05-11  8:04   ` Luiz Augusto von Dentz
  2015-05-11 13:26     ` Tom Harada
  0 siblings, 1 reply; 6+ messages in thread
From: Luiz Augusto von Dentz @ 2015-05-11  8:04 UTC (permalink / raw)
  To: Tom Harada; +Cc: linux-bluetooth@vger.kernel.org

Hi Tom,

On Mon, May 11, 2015 at 11:03 AM, Luiz Augusto von Dentz
<luiz.dentz@gmail.com> wrote:
> Hi Tom,
>
> On Fri, May 8, 2015 at 5:31 PM, Tom Harada <tharada@lampreynetworks.com> wrote:
>> Hi all,
>>
>> On a system with kernel 4.0.1 and BlueZ 5.22 or newer, I've noticed that
>> BlueZ seems to be automatically pairing with LE devices as soon as it
>> detects their advertisements. Is this an intended feature? If so, how can I
>> prevent it from happening?
>
> It should be pairing, bluetoothd will create objects for devices found

I meant it should not be pairing...

> during the scan but they are considered temporary as long as you don't
> request to connect or pair, if you connect to it will still not be
> paired but it will be stored persistently in the storage so you can
> access after restarting bluetoothd.
>
> With this in mind, what had made you believe we were performing
> pairing during scanning?
>
>
> --
> Luiz Augusto von Dentz



-- 
Luiz Augusto von Dentz

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: LE device automatic pairing
  2015-05-11  8:04   ` Luiz Augusto von Dentz
@ 2015-05-11 13:26     ` Tom Harada
  2015-05-11 15:16       ` Luiz Augusto von Dentz
  0 siblings, 1 reply; 6+ messages in thread
From: Tom Harada @ 2015-05-11 13:26 UTC (permalink / raw)
  To: linux-bluetooth@vger.kernel.org

[-- Attachment #1: Type: text/plain, Size: 1391 bytes --]

Hi Luiz,

On 05/11/15 04:04, Luiz Augusto von Dentz wrote:
> Hi Tom,
>
> On Mon, May 11, 2015 at 11:03 AM, Luiz Augusto von Dentz
> <luiz.dentz@gmail.com> wrote:
>> Hi Tom,
>>
>> On Fri, May 8, 2015 at 5:31 PM, Tom Harada <tharada@lampreynetworks.com> wrote:
>>> Hi all,
>>>
>>> On a system with kernel 4.0.1 and BlueZ 5.22 or newer, I've noticed that
>>> BlueZ seems to be automatically pairing with LE devices as soon as it
>>> detects their advertisements. Is this an intended feature? If so, how can I
>>> prevent it from happening?
>> It should be pairing, bluetoothd will create objects for devices found
> I meant it should not be pairing...
>
>> during the scan but they are considered temporary as long as you don't
>> request to connect or pair, if you connect to it will still not be
>> paired but it will be stored persistently in the storage so you can
>> access after restarting bluetoothd.
>>
>> With this in mind, what had made you believe we were performing
>> pairing during scanning?
bluetoothctl prints a line like "[CHG] Device 90:59:AF:1D:F4:66 Paired: 
yes" and reports the device as paired. In other words, it behaves 
exactly as if I had explicitly requested to pair with the device, except 
I did no such thing. In btmon, I can see the pairing request taking 
place, followed by a GATT service discovery. I've attached an example to 
show what I mean.

Thanks,
Tom

[-- Attachment #2: btmon.txt --]
[-- Type: text/plain, Size: 39598 bytes --]

Bluetooth monitor ver 5.30
= New Index: 00:02:72:D9:F9:B6 (BR/EDR,USB,hci0)                                                    [hci0] 0.694797
@ Device Unpaired: 90:59:AF:1D:F4:66 (1)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2                                              [hci0] 4.795343
        Scanning: Disabled (0x00)
        Filter duplicates: Disabled (0x00)
> HCI Event: Command Complete (0x0e) plen 4                                                         [hci0] 4.799424
      LE Set Scan Enable (0x08|0x000c) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Random Address (0x08|0x0005) plen 6                                           [hci0] 4.799508
        Address: 30:D2:F2:A5:5E:03 (Non-Resolvable)
> HCI Event: Command Complete (0x0e) plen 4                                                         [hci0] 4.802328
      LE Set Random Address (0x08|0x0005) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7                                          [hci0] 4.802431
        Type: Active (0x01)
        Interval: 11.250 msec (0x0012)
        Window: 11.250 msec (0x0012)
        Own address type: Random (0x01)
        Filter policy: Accept all advertisement (0x00)
> HCI Event: Command Complete (0x0e) plen 4                                                         [hci0] 4.805323
      LE Set Scan Parameters (0x08|0x000b) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2                                              [hci0] 4.805396
        Scanning: Enabled (0x01)
        Filter duplicates: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4                                                         [hci0] 4.808324
      LE Set Scan Enable (0x08|0x000c) ncmd 1
        Status: Success (0x00)
@ Discovering: 0x01 (7)
> HCI Event: LE Meta Event (0x3e) plen 19                                                           [hci0] 5.257453
      LE Advertising Report (0x02)
        Num reports: 1
        Event type: Connectable undirected - ADV_IND (0x00)
        Address type: Random (0x01)
        Address: CA:BD:82:82:E1:27 (Static)
        Data length: 7
        Flags: 0x06
          LE General Discoverable Mode
          BR/EDR Not Supported
        16-bit Service UUIDs (complete): 1 entry
          Unknown (0xfeed)
        RSSI: -94 dBm (0xa2)
> HCI Event: LE Meta Event (0x3e) plen 12                                                           [hci0] 5.258334
      LE Advertising Report (0x02)
        Num reports: 1
        Event type: Scan response - SCAN_RSP (0x04)
        Address type: Random (0x01)
        Address: CA:BD:82:82:E1:27 (Static)
        Data length: 0
        RSSI: -92 dBm (0xa4)
@ Device Found: CA:BD:82:82:E1:27 (2) rssi -92 flags 0x0000
        02 01 06 03 03 ed fe                             .......         
> HCI Event: LE Meta Event (0x3e) plen 25                                                           [hci0] 8.895454
      LE Advertising Report (0x02)
        Num reports: 1
        Event type: Connectable undirected - ADV_IND (0x00)
        Address type: Public (0x00)
        Address: 90:59:AF:1D:F4:66 (Texas Instruments)
        Data length: 13
        Flags: 0x05
          LE Limited Discoverable Mode
          BR/EDR Not Supported
        16-bit Service UUIDs (partial): 1 entry
          Blood Pressure (0x1810)
        Slave Conn. Interval: 0x0050 - 0x00a0
        RSSI: -68 dBm (0xbc)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2                                              [hci0] 8.895547
        Scanning: Disabled (0x00)
        Filter duplicates: Disabled (0x00)
> HCI Event: LE Meta Event (0x3e) plen 37                                                           [hci0] 8.898316
      LE Advertising Report (0x02)
        Num reports: 1
        Event type: Scan response - SCAN_RSP (0x04)
        Address type: Public (0x00)
        Address: 90:59:AF:1D:F4:66 (Texas Instruments)
        Data length: 25
        TX power: 0 dBm
        Name (complete): A&D_UA-651BLE_1DF466
        RSSI: -59 dBm (0xc5)
@ Device Found: 90:59:AF:1D:F4:66 (1) rssi -59 flags 0x0000
        02 01 05 03 02 10 18 05 12 50 00 a0 00 02 0a 00  .........P......
        15 09 41 26 44 5f 55 41 2d 36 35 31 42 4c 45 5f  ..A&D_UA-651BLE_
        31 44 46 34 36 36                                1DF466          
> HCI Event: Command Complete (0x0e) plen 4                                                         [hci0] 8.899327
      LE Set Scan Enable (0x08|0x000c) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Create Connection (0x08|0x000d) plen 25                                           [hci0] 8.899417
        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: 90:59:AF:1D:F4:66 (Texas Instruments)
        Own address type: Public (0x00)
        Min connection interval: 100.00 msec (0x0050)
        Max connection interval: 200.00 msec (0x00a0)
        Connection latency: 0x0000
        Supervision timeout: 6000 msec (0x0258)
        Min connection length: 0.000 msec (0x0000)
        Max connection length: 0.000 msec (0x0000)
@ Discovering: 0x00 (7)
> HCI Event: Command Status (0x0f) plen 4                                                           [hci0] 8.902318
      LE Create Connection (0x08|0x000d) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 19                                                           [hci0] 8.920426
      LE Connection Complete (0x01)
        Status: Success (0x00)
        Handle: 64
        Role: Master (0x00)
        Peer address type: Public (0x00)
        Peer address: 90:59:AF:1D:F4:66 (Texas Instruments)
        Connection interval: 198.75 msec (0x009f)
        Connection latency: 0.00 msec (0x0000)
        Supervision timeout: 6000 msec (0x0258)
        Master clock accuracy: 0x05
@ Device Connected: 90:59:AF:1D:F4:66 (1) flags 0x0000
        02 01 05 03 02 10 18 05 12 50 00 a0 00           .........P...   
< ACL Data TX: Handle 64 flags 0x00 dlen 7                                                          [hci0] 8.953603
      ATT: Exchange MTU Request (0x02) len 2
        Client RX MTU: 517
> ACL Data RX: Handle 64 flags 0x02 dlen 6                                                          [hci0] 8.994441
      SMP: Security Request (0x0b) len 1
        Authentication requirement: Bonding, No MITM, Legacy, No Keypresses (0x01)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                         [hci0] 8.994535
      SMP: Pairing Request (0x01) len 6
        IO capability: NoInputNoOutput (0x03)
        OOB data: Authentication data not present (0x00)
        Authentication requirement: Bonding, No MITM, Legacy, No Keypresses (0x01)
        Max encryption key size: 16
        Initiator key distribution: EncKey Sign (0x05)
        Responder key distribution: EncKey IdKey Sign (0x07)
> HCI Event: Number of Completed Packets (0x13) plen 5                                              [hci0] 9.173429
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 7                                                          [hci0] 9.193265
      ATT: Exchange MTU Response (0x03) len 2
        Server RX MTU: 23
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                         [hci0] 9.193603
      ATT: Read By Group Type Request (0x10) len 6
        Handle range: 0x0001-0xffff
        Attribute group type: Primary Service (0x2800)
> ACL Data RX: Handle 64 flags 0x02 dlen 11                                                         [hci0] 9.392076
      SMP: Pairing Response (0x02) len 6
        IO capability: NoInputNoOutput (0x03)
        OOB data: Authentication data not present (0x00)
        Authentication requirement: Bonding, No MITM, Legacy, No Keypresses (0x01)
        Max encryption key size: 16
        Initiator key distribution: EncKey Sign (0x05)
        Responder key distribution: EncKey IdKey Sign (0x07)
< ACL Data TX: Handle 64 flags 0x00 dlen 21                                                         [hci0] 9.392167
      SMP: Pairing Confirm (0x03) len 16
        Confim value: 1c07d71586a060f6b3ecbd1f7cd34a1d
> HCI Event: Number of Completed Packets (0x13) plen 5                                              [hci0] 9.393318
        Num handles: 1
        Handle: 64
        Count: 2
> ACL Data RX: Handle 64 flags 0x02 dlen 24                                                         [hci0] 9.590958
      ATT: Read By Group Type Response (0x11) len 19
        Attribute data length: 6
        Attribute data list: 3 entries
        Handle: 0x0001
        Value: 0b000018
        Handle: 0x000c
        Value: 0f000118
        Handle: 0x0010
        Value: 17001018
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                         [hci0] 9.591167
      ATT: Read By Group Type Request (0x10) len 6
        Handle range: 0x0018-0xffff
        Attribute group type: Primary Service (0x2800)
> ACL Data RX: Handle 64 flags 0x02 dlen 21                                                         [hci0] 9.789679
      SMP: Pairing Confirm (0x03) len 16
        Confim value: bf417ab96e31ffe86ed12a1b5b8b90e3
< ACL Data TX: Handle 64 flags 0x00 dlen 21                                                         [hci0] 9.789794
      SMP: Pairing Random (0x04) len 16
        Random value: efc135031490c5b84b0a6d483e17678f
> HCI Event: Number of Completed Packets (0x13) plen 5                                              [hci0] 9.790383
        Num handles: 1
        Handle: 64
        Count: 2
> ACL Data RX: Handle 64 flags 0x02 dlen 18                                                         [hci0] 9.988394
      ATT: Read By Group Type Response (0x11) len 13
        Attribute data length: 6
        Attribute data list: 2 entries
        Handle: 0x0018
        Value: 28000a18
        Handle: 0x0029
        Value: 2b000f18
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                         [hci0] 9.988611
      ATT: Read By Group Type Request (0x10) len 6
        Handle range: 0x002c-0xffff
        Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 10.173454
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 21                                                        [hci0] 10.187125
      SMP: Pairing Random (0x04) len 16
        Random value: 16ca56cf627f7da808e153c502ff93c0
< HCI Command: LE Start Encryption (0x08|0x0019) plen 28                                           [hci0] 10.187232
        Handle: 64
        Random number: 0x0000000000000000
        Encrypted diversifier: 0x0000
        Long term key: f61d9a2927a0fd2bd7d686cb275d9787
> HCI Event: Command Status (0x0f) plen 4                                                          [hci0] 10.189323
      LE Start Encryption (0x08|0x0019) ncmd 1
        Status: Success (0x00)
> ACL Data RX: Handle 64 flags 0x02 dlen 26                                                        [hci0] 10.386010
      ATT: Read By Group Type Response (0x11) len 21
        Attribute data length: 20
        Attribute data list: 1 entry
        Handle: 0x002c
        Value: ffffe4ab90560d005c976d1b345a00f03b23
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 10.386396
      ATT: Read By Group Type Request (0x10) len 6
        Handle range: 0x0001-0xffff
        Attribute group type: Secondary Service (0x2801)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 10.423366
        Num handles: 1
        Handle: 64
        Count: 1
> HCI Event: Encryption Change (0x08) plen 4                                                       [hci0] 11.578371
        Status: Success (0x00)
        Handle: 64
        Encryption: Enabled with AES-CCM (0x01)
> ACL Data RX: Handle 64 flags 0x02 dlen 21                                                        [hci0] 11.777256
      SMP: Encryption Information (0x06) len 16
        Long term key: a68b1238a58f6278ee6b460e94301d2f
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 11.923438
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 11.975720
      ATT: Error Response (0x01) len 4
        Read By Group Type Request (0x10)
        Handle: 0x0001
        Error: Unsupported Group Type (0x10)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 11.976128
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0001-0x000b
        Attribute type: Include (0x2802)
> ACL Data RX: Handle 64 flags 0x02 dlen 15                                                        [hci0] 11.976375
      SMP: Master Identification (0x07) len 10
        EDIV: 0x850a
        Rand: 0x816352ffa23ba078
> ACL Data RX: Handle 64 flags 0x02 dlen 21                                                        [hci0] 12.174757
      SMP: Identity Information (0x08) len 16
        Identity resolving key: 491b2776b95894322e6c699d1d2ea689
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 12.373226
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x0001
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 12.373598
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x000c-0x000f
        Attribute type: Include (0x2802)
> ACL Data RX: Handle 64 flags 0x02 dlen 12                                                        [hci0] 12.373846
      SMP: Identity Address Information (0x09) len 7
        Address type: Public (0x00)
        Address: 90:59:AF:1D:F4:66
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 12.423444
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 21                                                        [hci0] 12.572216
      SMP: Signing Information (0x0a) len 16
        Signature key: 3042fc577042d827ca19bf56e4722588
< ACL Data TX: Handle 64 flags 0x00 dlen 21                                                        [hci0] 12.572372
      SMP: Encryption Information (0x06) len 16
        Long term key: 3593dd4b8e4c4e3a986849f04c02b579
< ACL Data TX: Handle 64 flags 0x00 dlen 15                                                        [hci0] 12.572390
      SMP: Master Identification (0x07) len 10
        EDIV: 0x7f39
        Rand: 0x4817fa37512d429f
< ACL Data TX: Handle 64 flags 0x00 dlen 21                                                        [hci0] 12.572393
      SMP: Signing Information (0x0a) len 16
        Signature key: 5d3dbe128926cd44864672369cd6c4e7
@ New IRK: 90:59:AF:1D:F4:66 (1) 00:00:00:00:00:00
@ New CSRK: 90:59:AF:1D:F4:66 (1) Remote Unauthenticated (1)
@ New CSRK: 90:59:AF:1D:F4:66 (1) Local Unauthenticated (0)
@ New Long Term Key: 90:59:AF:1D:F4:66 (1) Master (Unauthenticated) 0x00
@ New Long Term Key: 90:59:AF:1D:F4:66 (1) Slave (Unauthenticated) 0x00
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 12.770843
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x000c
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 12.771110
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0010-0x0017
        Attribute type: Include (0x2802)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 12.771365
        Num handles: 1
        Handle: 64
        Count: 2
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 12.772407
        Num handles: 1
        Handle: 64
        Count: 2
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 13.168327
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x0010
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 13.168691
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0018-0x0028
        Attribute type: Include (0x2802)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 13.173356
        Num handles: 1
        Handle: 64
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 13.548416
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 13.565770
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x0018
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 13.566115
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0029-0x002b
        Attribute type: Include (0x2802)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 13.923450
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 13.963249
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x0029
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 13.963510
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x002c-0xffff
        Attribute type: Include (0x2802)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 14.299455
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 14.360804
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x002c
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 14.361156
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0001-0x000b
        Attribute type: Characteristic (0x2803)
> ACL Data RX: Handle 64 flags 0x02 dlen 27                                                        [hci0] 14.758479
      ATT: Read By Type Response (0x09) len 22
        Attribute data length: 7
        Attribute data list: 3 entries
        Handle: 0x0002
        Value: 020300002a
        Handle: 0x0004
        Value: 020500012a
        Handle: 0x0006
        Value: 0a0700022a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 14.758772
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0007-0x000b
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 14.799456
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 20                                                        [hci0] 15.155844
      ATT: Read By Type Response (0x09) len 15
        Attribute data length: 7
        Attribute data list: 2 entries
        Handle: 0x0008
        Value: 0a0900032a
        Handle: 0x000a
        Value: 020b00042a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 15.156226
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x000b-0x000b
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 15.174439
        Num handles: 1
        Handle: 64
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 15.549420
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 15.553286
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x000b
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 15.553616
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x000c-0x000f
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 15.924498
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 13                                                        [hci0] 15.950835
      ATT: Read By Type Response (0x09) len 8
        Attribute data length: 7
        Attribute data list: 1 entry
        Handle: 0x000d
        Value: 200e00052a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 15.951199
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x000e-0x000f
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 16.299444
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 16.348511
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x000e
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 9                                                         [hci0] 16.348828
      ATT: Find Information Request (0x04) len 4
        Handle range: 0x000f-0x000f
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 16.674447
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 10                                                        [hci0] 16.745862
      ATT: Find Information Response (0x05) len 5
        Format: UUID-16 (0x01)
        Handle: 0x000f
        UUID: Client Characteristic Configuration (0x2902)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 16.746221
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0010-0x0017
        Attribute type: Characteristic (0x2803)
> ACL Data RX: Handle 64 flags 0x02 dlen 27                                                        [hci0] 17.143495
      ATT: Read By Type Response (0x09) len 22
        Attribute data length: 7
        Attribute data list: 3 entries
        Handle: 0x0011
        Value: 201200352a
        Handle: 0x0014
        Value: 021500492a
        Handle: 0x0016
        Value: 0a1700082a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 17.143773
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0017-0x0017
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 17.174456
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 17.540829
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x0017
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 9                                                         [hci0] 17.541168
      ATT: Find Information Request (0x04) len 4
        Handle range: 0x0013-0x0013
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 17.549345
        Num handles: 1
        Handle: 64
        Count: 1
< HCI Command: LE Set Random Address (0x08|0x0005) plen 6                                          [hci0] 17.793588
        Address: 02:8A:89:B3:89:B1 (Non-Resolvable)
> HCI Event: Command Complete (0x0e) plen 4                                                        [hci0] 17.796358
      LE Set Random Address (0x08|0x0005) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7                                         [hci0] 17.796436
        Type: Active (0x01)
        Interval: 11.250 msec (0x0012)
        Window: 11.250 msec (0x0012)
        Own address type: Random (0x01)
        Filter policy: Accept all advertisement (0x00)
> HCI Event: Command Complete (0x0e) plen 4                                                        [hci0] 17.799309
      LE Set Scan Parameters (0x08|0x000b) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2                                             [hci0] 17.799377
        Scanning: Enabled (0x01)
        Filter duplicates: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4                                                        [hci0] 17.802316
      LE Set Scan Enable (0x08|0x000c) ncmd 1
        Status: Success (0x00)
@ Discovering: 0x01 (7)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 17.924484
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 10                                                        [hci0] 17.938501
      ATT: Find Information Response (0x05) len 5
        Format: UUID-16 (0x01)
        Handle: 0x0013
        UUID: Client Characteristic Configuration (0x2902)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 17.938830
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0018-0x0028
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 18.299396
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 27                                                        [hci0] 18.336031
      ATT: Read By Type Response (0x09) len 22
        Attribute data length: 7
        Attribute data list: 3 entries
        Handle: 0x0019
        Value: 021a00292a
        Handle: 0x001b
        Value: 021c00242a
        Handle: 0x001d
        Value: 021e00252a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 18.336193
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x001e-0x0028
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 18.674441
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 27                                                        [hci0] 18.733547
      ATT: Read By Type Response (0x09) len 22
        Attribute data length: 7
        Attribute data list: 3 entries
        Handle: 0x001f
        Value: 022000272a
        Handle: 0x0021
        Value: 022200262a
        Handle: 0x0023
        Value: 022400282a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 18.733817
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0024-0x0028
        Attribute type: Characteristic (0x2803)
> ACL Data RX: Handle 64 flags 0x02 dlen 20                                                        [hci0] 19.130757
      ATT: Read By Type Response (0x09) len 15
        Attribute data length: 7
        Attribute data list: 2 entries
        Handle: 0x0025
        Value: 022600232a
        Handle: 0x0027
        Value: 0228002a2a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 19.130922
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0028-0x0028
        Attribute type: Characteristic (0x2803)
> ACL Data RX: Handle 64 flags 0x02 dlen 16                                                        [hci0] 19.131551
      LE L2CAP: Connection Parameter Update Request (0x12) ident 1 len 8
        Min interval: 80
        Max interval: 160
        Slave latency: 0
        Timeout multiplier: 600
< ACL Data TX: Handle 64 flags 0x00 dlen 10                                                        [hci0] 19.131590
      LE L2CAP: Connection Parameter Update Response (0x13) ident 1 len 2
        Result: Connection Parameters accepted (0x0000)
< HCI Command: LE Connection Update (0x08|0x0013) plen 14                                          [hci0] 19.131600
        Handle: 64
        Min connection interval: 100.00 msec (0x0050)
        Max connection interval: 200.00 msec (0x00a0)
        Connection latency: 0x0000
        Supervision timeout: 6000 msec (0x0258)
        Min connection length: 0.000 msec (0x0000)
        Max connection length: 0.000 msec (0x0000)
@ New Conn Param: 90:59:AF:1D:F4:66 (1) hint 1 min 0x0050 max 0x00a0 latency 0x0000 timeout 0x0258
> HCI Event: Command Status (0x0f) plen 4                                                          [hci0] 19.135306
      LE Connection Update (0x08|0x0013) ncmd 1
        Status: Success (0x00)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 19.174443
        Num handles: 1
        Handle: 64
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 19.529395
        Num handles: 1
        Handle: 64
        Count: 2
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 19.727341
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x0028
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 19.727711
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0029-0x002b
        Attribute type: Characteristic (0x2803)
> ACL Data RX: Handle 64 flags 0x02 dlen 13                                                        [hci0] 20.124737
      ATT: Read By Type Response (0x09) len 8
        Attribute data length: 7
        Attribute data list: 1 entry
        Handle: 0x002a
        Value: 022b00192a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 20.125002
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x002b-0x002b
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 20.174432
        Num handles: 1
        Handle: 64
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 20.549446
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 20.721075
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x002b
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 20.721281
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x002c-0xffff
        Attribute type: Characteristic (0x2803)
> HCI Event: LE Meta Event (0x3e) plen 10                                                          [hci0] 20.721311
      LE Connection Update Complete (0x03)
        Status: Success (0x00)
        Handle: 64
        Connection interval: 198.75 msec (0x009f)
        Connection latency: 0.00 msec (0x0000)
        Supervision timeout: 6000 msec (0x0258)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 21.049411
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 27                                                        [hci0] 21.118599
      ATT: Read By Type Response (0x09) len 22
        Attribute data length: 21
        Attribute data list: 1 entry
        Handle: 0x002d
        Value: 0a2e00e4ab90560d005c976d1b345a01f03b23
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 21.118876
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x002e-0xffff
        Attribute type: Characteristic (0x2803)
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 21.516111
      ATT: Error Response (0x01) len 4
        Read By Type Request (0x08)
        Handle: 0x002e
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 9                                                         [hci0] 21.516544
      ATT: Find Information Request (0x04) len 4
        Handle range: 0x002f-0xffff
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 21.549419
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 9                                                         [hci0] 21.913597
      ATT: Error Response (0x01) len 4
        Find Information Request (0x04)
        Handle: 0x002f
        Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 64 flags 0x00 dlen 9                                                         [hci0] 21.914086
      ATT: Write Request (0x12) len 4
        Handle: 0x000f
          Data: 0200
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 21.924449
        Num handles: 1
        Handle: 64
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 22.299409
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 5                                                         [hci0] 22.310999
      ATT: Write Response (0x13) len 0
@ Device Added: 90:59:AF:1D:F4:66 (1) 2
< ACL Data TX: Handle 64 flags 0x00 dlen 9                                                         [hci0] 22.311874
      ATT: Read Blob Request (0x0c) len 4
        Handle: 0x0003
        Offset: 0x0000
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 22.674364
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 25                                                        [hci0] 22.708640
      ATT: Read Blob Response (0x0d) len 20
        41 26 44 5f 55 41 2d 36 35 31 42 4c 45 5f 31 44  A&D_UA-651BLE_1D
        46 34 36 36                                      F466            
< ACL Data TX: Handle 64 flags 0x00 dlen 7                                                         [hci0] 22.708945
      ATT: Read Request (0x0a) len 2
        Handle: 0x0005
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2                                             [hci0] 22.936030
        Scanning: Disabled (0x00)
        Filter duplicates: Disabled (0x00)
> HCI Event: Command Complete (0x0e) plen 4                                                        [hci0] 22.939301
      LE Set Scan Enable (0x08|0x000c) ncmd 1
        Status: Success (0x00)
< HCI Command: Inquiry (0x01|0x0001) plen 5                                                        [hci0] 22.939391
        Access code: 0x9e8b33 (General Inquiry)
        Length: 5.12s (0x04)
        Num responses: 0
> HCI Event: Command Status (0x0f) plen 4                                                          [hci0] 22.942306
      Inquiry (0x01|0x0001) ncmd 1
        Status: Success (0x00)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 23.049416
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 7                                                         [hci0] 23.106130
      ATT: Read Response (0x0b) len 2
        Value: 0000
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 23.106390
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0018-0x0028
        Attribute type: Characteristic (0x2803)
> ACL Data RX: Handle 64 flags 0x02 dlen 27                                                        [hci0] 23.503841
      ATT: Read By Type Response (0x09) len 22
        Attribute data length: 7
        Attribute data list: 3 entries
        Handle: 0x0019
        Value: 021a00292a
        Handle: 0x001b
        Value: 021c00242a
        Handle: 0x001d
        Value: 021e00252a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 23.504248
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x001e-0x0028
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 23.549384
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 27                                                        [hci0] 23.901327
      ATT: Read By Type Response (0x09) len 22
        Attribute data length: 7
        Attribute data list: 3 entries
        Handle: 0x001f
        Value: 022000272a
        Handle: 0x0021
        Value: 022200262a
        Handle: 0x0023
        Value: 022400282a
< ACL Data TX: Handle 64 flags 0x00 dlen 11                                                        [hci0] 23.901681
      ATT: Read By Type Request (0x08) len 6
        Handle range: 0x0024-0x0028
        Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 23.924453
        Num handles: 1
        Handle: 64
        Count: 1
> ACL Data RX: Handle 64 flags 0x02 dlen 20                                                        [hci0] 24.298853
      ATT: Read By Type Response (0x09) len 15
        Attribute data length: 7
        Attribute data list: 2 entries
        Handle: 0x0025
        Value: 022600232a
        Handle: 0x0027
        Value: 0228002a2a
> HCI Event: Number of Completed Packets (0x13) plen 5                                             [hci0] 24.300344
        Num handles: 1
        Handle: 64
        Count: 1

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: LE device automatic pairing
  2015-05-11 13:26     ` Tom Harada
@ 2015-05-11 15:16       ` Luiz Augusto von Dentz
  2015-05-11 15:46         ` Tom Harada
  0 siblings, 1 reply; 6+ messages in thread
From: Luiz Augusto von Dentz @ 2015-05-11 15:16 UTC (permalink / raw)
  To: Tom Harada; +Cc: linux-bluetooth@vger.kernel.org

Hi Tom,

On Mon, May 11, 2015 at 4:26 PM, Tom Harada <tharada@lampreynetworks.com> wrote:
> Hi Luiz,
>
>
> On 05/11/15 04:04, Luiz Augusto von Dentz wrote:
>>
>> Hi Tom,
>>
>> On Mon, May 11, 2015 at 11:03 AM, Luiz Augusto von Dentz
>> <luiz.dentz@gmail.com> wrote:
>>>
>>> Hi Tom,
>>>
>>> On Fri, May 8, 2015 at 5:31 PM, Tom Harada <tharada@lampreynetworks.com>
>>> wrote:
>>>>
>>>> Hi all,
>>>>
>>>> On a system with kernel 4.0.1 and BlueZ 5.22 or newer, I've noticed that
>>>> BlueZ seems to be automatically pairing with LE devices as soon as it
>>>> detects their advertisements. Is this an intended feature? If so, how
>>>> can I
>>>> prevent it from happening?
>>>
>>> It should be pairing, bluetoothd will create objects for devices found
>>
>> I meant it should not be pairing...
>>
>>> during the scan but they are considered temporary as long as you don't
>>> request to connect or pair, if you connect to it will still not be
>>> paired but it will be stored persistently in the storage so you can
>>> access after restarting bluetoothd.
>>>
>>> With this in mind, what had made you believe we were performing
>>> pairing during scanning?
>
> bluetoothctl prints a line like "[CHG] Device 90:59:AF:1D:F4:66 Paired: yes"
> and reports the device as paired. In other words, it behaves exactly as if I
> had explicitly requested to pair with the device, except I did no such
> thing. In btmon, I can see the pairing request taking place, followed by a
> GATT service discovery. I've attached an example to show what I mean.

This sounds like the device was programmed for auto connect, did you
connected to it before? It would explain why it is connecting but not
why it is paring but perhaps it is because the service connecting does
require encryption e.g. HoG. Try removing the device, it should stop
reconnecting every time the device advertises.


-- 
Luiz Augusto von Dentz

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: LE device automatic pairing
  2015-05-11 15:16       ` Luiz Augusto von Dentz
@ 2015-05-11 15:46         ` Tom Harada
  0 siblings, 0 replies; 6+ messages in thread
From: Tom Harada @ 2015-05-11 15:46 UTC (permalink / raw)
  To: Luiz Augusto von Dentz; +Cc: linux-bluetooth@vger.kernel.org

Hi Luiz,

On 05/11/15 11:16, Luiz Augusto von Dentz wrote:
> Hi Tom,
>
> On Mon, May 11, 2015 at 4:26 PM, Tom Harada <tharada@lampreynetworks.com> wrote:
>> Hi Luiz,
>>
>>
>> On 05/11/15 04:04, Luiz Augusto von Dentz wrote:
>>> Hi Tom,
>>>
>>> On Mon, May 11, 2015 at 11:03 AM, Luiz Augusto von Dentz
>>> <luiz.dentz@gmail.com> wrote:
>>>> Hi Tom,
>>>>
>>>> On Fri, May 8, 2015 at 5:31 PM, Tom Harada <tharada@lampreynetworks.com>
>>>> wrote:
>>>>> Hi all,
>>>>>
>>>>> On a system with kernel 4.0.1 and BlueZ 5.22 or newer, I've noticed that
>>>>> BlueZ seems to be automatically pairing with LE devices as soon as it
>>>>> detects their advertisements. Is this an intended feature? If so, how
>>>>> can I
>>>>> prevent it from happening?
>>>> It should be pairing, bluetoothd will create objects for devices found
>>> I meant it should not be pairing...
>>>
>>>> during the scan but they are considered temporary as long as you don't
>>>> request to connect or pair, if you connect to it will still not be
>>>> paired but it will be stored persistently in the storage so you can
>>>> access after restarting bluetoothd.
>>>>
>>>> With this in mind, what had made you believe we were performing
>>>> pairing during scanning?
>> bluetoothctl prints a line like "[CHG] Device 90:59:AF:1D:F4:66 Paired: yes"
>> and reports the device as paired. In other words, it behaves exactly as if I
>> had explicitly requested to pair with the device, except I did no such
>> thing. In btmon, I can see the pairing request taking place, followed by a
>> GATT service discovery. I've attached an example to show what I mean.
> This sounds like the device was programmed for auto connect, did you
> connected to it before? It would explain why it is connecting but not
> why it is paring but perhaps it is because the service connecting does
> require encryption e.g. HoG. Try removing the device, it should stop
> reconnecting every time the device advertises.
>
>
To clarify, BlueZ does not automatically connect to the device when it 
is already paired; it only connects (and pairs) when the device is not 
already paired. So it is only after removing the device that this 
behavior occurs.

Thanks,
Tom Harada

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2015-05-11 15:46 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-05-08 14:31 LE device automatic pairing Tom Harada
2015-05-11  8:03 ` Luiz Augusto von Dentz
2015-05-11  8:04   ` Luiz Augusto von Dentz
2015-05-11 13:26     ` Tom Harada
2015-05-11 15:16       ` Luiz Augusto von Dentz
2015-05-11 15:46         ` Tom Harada

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