[Hackrf-dev] A BTLE (Bluetooth Low energy) packet sniffer/scanner sender

Wed Nov 11 22:50:19 EST 2015

Thanks.

@jxjputaoshu: The principle how HACKRF BTLE sniffer (https://t.co/MhwKyPp3o5)
capture and follow BTLE frequency hopping link. https://t.co/rIUFhHprvx

On Thu, Nov 12, 2015 at 03:30 Samy Kamkar <samy at samy.pl> wrote:

> Very cool Jiao!
>
> On Wed, Nov 11, 2015 at 9:37 AM, Jiao Xianjun <putaoshu at gmail.com> wrote:
>
>> I have done many tests. And it shows a good behaviour just like TI's
>> sniffer.
>>
>> So now I can say that the HACKRF BTLE packet sniffer/scanner can follow
>> hopping data channels automatically now! See comparison:
>>
>>
>>
>> On Tue, Nov 10, 2015 at 12:13 AM, Jiao Xianjun <putaoshu at gmail.com>
>> wrote:
>>
>>> So excited that the packet sniffer/scanner btle_rx can follow BTLE
>>> hopping data channels now!
>>>
>>> It follows ~8ms hopping link successfully! (Because the fastest speed of
>>> my btle_tx is about 8ms gap between successive packets).
>>>
>>> Currently it only works on a simple case (which is the most cases in
>>> real world) where channel mapping is 0x1FFFFFFFFF (This means all data
>>> channel 0~36 will be used for freq hopping). btle_rx is a fast moving
>>> target currently. More for demonstration purpose than full verification for
>>> now. Will release more soon.
>>>
>>> New added options:
>>>
>>>     -f --freq_hz
>>>
>>> This frequency (Hz) will override channel setting (In case someone want
>>> to work on freq other than BTLE. More general purpose).
>>>
>>>     -m --access_mask
>>>
>>> If a bit is 1 in this mask, corresponding bit in access address will be
>>> taken into packet existing decision (In case someone want a shorter/sparser
>>> unique word to do packet detection. More general purpose).
>>>
>>>     -o --hop
>>>
>>> This will turn on data channel tracking (frequency hopping) after link
>>> setup information is captured in ADV_CONNECT_REQ packet.
>>>
>>> On Sun, Nov 8, 2015 at 12:16 AM, Jiao Xianjun <putaoshu at gmail.com>
>>> wrote:
>>>
>>>> BTLE packet sniffer/scanner/sender. Some updates:
>>>> http://sdr-x.github.io/BTLE-SNIFFER/
>>>>
>>>> Now all BTLE channels (0~39, bothe ADV and DATA channels) are
>>>> supported. You can use btle_tx and btle_rx to send or sniff on any BTLE
>>>> channel.
>>>>
>>>> Raw mode are now supported on both btle_tx and btle_rx. Under this mode
>>>> of btle_rx, after access address is detected, following raw 42 bytes
>>>> (without descrambling, parsing) are printed out. By this way, you can do
>>>> other experiments or communication between HACKRF boards easily.
>>>> Have fun.
>>>>
>>>>
>>>> On Wed, Nov 4, 2015 at 1:27 AM, Jiao Xianjun <putaoshu at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> Based on my previously released BTLE packet sender, now I have done a
>>>>> initial version of BTLE packet sniffer/scanner (Just like TI's packet
>>>>> sniffer). See here: http://sdr-x.github.io/BTLE-SNIFFER/
>>>>>
>>>>> Regarding the latency/real-time processing, I did some experiments and
>>>>> tries, and believe that even implementation via USB (instead of on board
>>>>> MCU), we still have chance to follow those "slow" frequency hopping link. I
>>>>> did see many BTLE link was setup as hopping interval >15ms/20ms/30ms by
>>>>> packet sniffer.
>>>>>
>>>>> Main efforts are:
>>>>> 1. Algorithm optimization for real-time processing, such as fixed
>>>>> point, CRC table, scrambling table, etc.
>>>>> 2. change lib_device->transfer_count to 4 and lib_device->buffer_size
>>>>> to 4096 in hackrf driver: hackrf.c. Original buffer size and buffer count
>>>>> is very big so that latency is pretty big. By this modified driver,
>>>>> according to my experiment, seems that tx and rx can be done in less than
>>>>> 10ms: processing latency is about 3~4ms, and worst case buffer delay is
>>>>> around 4ms.
>>>>>
>>>>> Snapshots of HACKRF BTLE packet sniffer VS TI's packet sniffer under
>>>>> fastest flow of continuous/non-gap BTLE packets sequence to demonstrate
>>>>> full real-time processing ability. They capture the same amount of packets
>>>>> and contents:
>>>>>
>>>>> http://sdr-x.github.io/media/mine-btle-sniffer2.png
>>>>> http://sdr-x.github.io/media/TI3.png
>>>>>
>>>>> youtube: https://youtu.be/9LDPhOF2yyw
>>>>>
>>>>> Besides,
>>>>> A new packet type "Discovery" is added, which can display any names
>>>>> and services via btle_tx to your App like LightBlue. ( I use this packet
>>>>> type in the "ADS-B BTLE Air Relay" http://sdr-x.github.io/abar/ to
>>>>> display flight information)
>>>>>
>>>>>
>>>>> On Fri, Aug 22, 2014 at 9:07 PM, Michael Ossmann <mike at ossmann.com>
>>>>> wrote:
>>>>>
>>>>>> I agree that some code on the ARM would be required.  Additionally,
>>>>>> there are probably ways to improve the tuning and rx/tx switch timing
>>>>>> even from the ARM.  We haven't done much to optimize those things.
>>>>>> There may be a lot of time that could be saved by speeding up SPI or
>>>>>> I2C
>>>>>> communication or by eliminating unnecessary commands being issued by
>>>>>> the
>>>>>> ARM to the other chips.  It may even be possible to parallelize some
>>>>>> things that are now done in sequence.
>>>>>>
>>>>>> Overall, I'm pretty sure that the timing required for LE operation is
>>>>>> achievable, but I'm not sure how close our current code is to being
>>>>>> fast
>>>>>> enough.
>>>>>>
>>>>>> Mike
>>>>>>
>>>>>>
>>>>>> On Wed, Aug 06, 2014 at 09:55:13AM +0800, Jiao Xianjun wrote:
>>>>>> >
>>>>>> > Hi Ryan,
>>>>>> >
>>>>>> > Thanks a lot for your offering the information. You are mastery on
>>>>>> BTLE
>>>>>> > protocol! I should learn more.
>>>>>> > 150us seems too fast for computer, and should consider on-board
>>>>>> processing.
>>>>>> >
>>>>>> > BR
>>>>>> >
>>>>>> > Jiao Xianjun
>>>>>> >
>>>>>> >
>>>>>> > On Wed, Aug 6, 2014 at 9:46 AM, Mike Ryan <mikeryan at lacklustre.net>
>>>>>> wrote:
>>>>>> >
>>>>>> > > It is possible to hop at such a low rate, but the timing of the
>>>>>> > > beginning of each connection event (where the master and slave
>>>>>> transmit
>>>>>> > > on each channel) has to be very precise. Additionally, a master
>>>>>> and
>>>>>> > > slave must have a TX-to-RX and RX-to-TX turnaround time of 150
>>>>>> +/- 2 us.
>>>>>> > >
>>>>>> > > In other words, after a master transmits, it must be able to
>>>>>> receive the
>>>>>> > > slave's reply within 150 us. A slave must be able to switch from
>>>>>> > > receiving the master's packet to transmitting its reply within
>>>>>> 150 us.
>>>>>> > >
>>>>>> > > On Wed, Aug 06, 2014 at 09:30:19AM +0800, Jiao Xianjun wrote:
>>>>>> > > > You are correct on that USB latency. I did a quick experiment
>>>>>> just now to
>>>>>> > > > test fastest switching speed of my BTLE packet sender via
>>>>>> hackrf (Set
>>>>>> > > Space
>>>>>> > > > field to 1, means that I want it be 1ms). It is around 60ms.
>>>>>> (See the
>>>>>> > > > snapshot attached, time stamp of the last three packets).
>>>>>> > > >
>>>>>> > > > 60ms maybe not so bad for real BTLE frequency hopping? I just
>>>>>> do a quick
>>>>>> > > > search for this to verify that (see attached two .pdf, and
>>>>>> search hopping
>>>>>> > > > in them). Seems that hopping speed requirement is not so high,
>>>>>> and 60ms
>>>>>> > > is
>>>>>> > > > OK. Just paste some related words here:
>>>>>> > > >
>>>>>> > > > "For a new connection event, master and slave use a new data
>>>>>> channel
>>>>>> > > > frequency, which is computed
>>>>>> > > > by using the frequency hopping algorithm. The time between the
>>>>>> start of
>>>>>> > > two
>>>>>> > > > consecutive connection
>>>>>> > > > events is specified by the connInterval parameter, which is a
>>>>>> multiple of
>>>>>> > > > 1.25 ms in the range between
>>>>>> > > > 7.5 ms and 4 s. Another important parameter is
>>>>>> connSlaveLatency, which
>>>>>> > > > defines the number of
>>>>>> > > > consecutive connection events during which the slave is not
>>>>>> required to
>>>>>> > > > listen to the master and thus
>>>>>> > > > can keep the radio turned off. This parameter is an integer
>>>>>> between 0 and
>>>>>> > > > 499 and should not cause a
>>>>>> > > > supervision timeout. A supervision timeout happens when the
>>>>>> time since
>>>>>> > > the
>>>>>> > > > last received packet
>>>>>> > > > exceeds the connSupervisionTimeout parameter, which is in the
>>>>>> range
>>>>>> > > between
>>>>>> > > > 100 ms and 32 s. The
>>>>>> > > > purpose of this mechanism is to detect the loss of a connection
>>>>>> due to
>>>>>> > > > severe interference or the
>>>>>> > > > movement of a device outside the range of its peer.
>>>>>> > > > "
>>>>>> > > >
>>>>>> > > > "The frequency retention time in the frequency hopping method
>>>>>> shall be
>>>>>> > > 0.4
>>>>>> > > > second or less. For
>>>>>> > > > the radio equipment that uses the frequency hopping method
>>>>>> excluding a
>>>>>> > > > combination of the
>>>>>> > > > spread spectrum method and OFDM, the total sum of the frequency
>>>>>> retention
>>>>>> > > > time in any frequency
>>>>>> > > > within the time obtained by multiplying the diffusion rate by
>>>>>> 0.4 second
>>>>>> > > > shall be 0.4 second or
>>>>>> > > > shorter.
>>>>>> > > > "
>>>>>> > > >
>>>>>> > > >
>>>>>> > > >
>>>>>> > > > 
>>>>>> > > >
>>>>>> > > >
>>>>>> > > >
>>>>>> > > >
>>>>>> > > > On Wed, Aug 6, 2014 at 8:54 AM, Mike Ryan <
>>>>>> mikeryan at lacklustre.net>
>>>>>> > > wrote:
>>>>>> > > >
>>>>>> > > > > I suspect the radio hardware is capable of retuning very
>>>>>> quickly, but
>>>>>> > > > > the USB latency is too high for real-time channel hopping. It
>>>>>> would be
>>>>>> > > > > necessary to enqueue packets on the HackRF and have the ARM
>>>>>> MCU control
>>>>>> > > > > the timing of channel hops.
>>>>>> > > > >
>>>>>> > > > > I didn't mean to sound too negative. Your development is very
>>>>>> > > > > interesting, and I definitely think it could be used as the
>>>>>> basis of a
>>>>>> > > > > more robust BLE device emulator.
>>>>>> > > > >
>>>>>> > > > > On Wed, Aug 06, 2014 at 08:50:09AM +0800, Jiao Xianjun wrote:
>>>>>> > > > > > Exactly.
>>>>>> > > > > >
>>>>>> > > > > > What I do is just offering  a tool. Those example is just a
>>>>>> simple
>>>>>> > > > > > verification.
>>>>>> > > > > >
>>>>>> > > > > > I think the tool and hackrf do have the full ability,
>>>>>> because hackrf
>>>>>> > > can
>>>>>> > > > > > switch from channel to channel very quickly (less than
>>>>>> several us?
>>>>>> > > Maybe
>>>>>> > > > > > Ossmann can give some number?).
>>>>>> > > > > >
>>>>>> > > > > > You may define a packet sequence with each packet starting
>>>>>> with
>>>>>> > > different
>>>>>> > > > > > channel number as you want, then hackrf will transmit a
>>>>>> hopping
>>>>>> > > channel
>>>>>> > > > > > packet sequence.
>>>>>> > > > > >
>>>>>> > > > > >
>>>>>> > > > > >
>>>>>> > > > > > On Wed, Aug 6, 2014 at 12:02 AM, Mike Ryan <
>>>>>> mikeryan at lacklustre.net>
>>>>>> > > > > wrote:
>>>>>> > > > > >
>>>>>> > > > > > > Crackle will crack the pairing that is found in *any*
>>>>>> PCAP file, it
>>>>>> > > > > just
>>>>>> > > > > > > so happens that Ubertooth is the best tools for producing
>>>>>> these.
>>>>>> > > > > > >
>>>>>> > > > > > > The sample packets provided by Jiao Xianjun do not
>>>>>> include a
>>>>>> > > pairing
>>>>>> > > > > > > sequence, just the encryption start sequence. Lacking the
>>>>>> pairing,
>>>>>> > > > > > > Crackle can't do anything here.
>>>>>> > > > > > >
>>>>>> > > > > > > Also, the sample packets are not part of a legal BLE
>>>>>> connection.
>>>>>> > > The
>>>>>> > > > > > > HackRF sits on a single channel (physical channel 9) and
>>>>>> sends them
>>>>>> > > > > out.
>>>>>> > > > > > > A real BLE connection hops among the data channels as it
>>>>>> transmits,
>>>>>> > > > > only
>>>>>> > > > > > > sending a single packet per channel.
>>>>>> > > > > > >
>>>>>> > > > > > > On Tue, Aug 05, 2014 at 08:26:10AM -0400, Luke Berndt
>>>>>> wrote:
>>>>>> > > > > > > > Nicely done! Does anyone know if it would be possible
>>>>>> to get
>>>>>> > > CrackLE
>>>>>> > > > > > > running against this? It was designed for UberTooth so I
>>>>>> am not
>>>>>> > > sure
>>>>>> > > > > if it
>>>>>> > > > > > > needs some HW.
>>>>>> > > > > > > > https://github.com/mikeryan/crackle/
>>>>>> > > > > > > >
>>>>>> > > > > > > >
>>>>>> > > > > > > >
>>>>>> > > > > > > > Sent from my iPhone
>>>>>> > > > > > > >
>>>>>> > > > > > > > > On Aug 5, 2014, at 2:15 AM, Jiao Xianjun <
>>>>>> putaoshu at gmail.com>
>>>>>> > > > > wrote:
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > A BTLE (Bluetooth Low energy)/BT4.0 radio packet
>>>>>> sender ( build
>>>>>> > > > > based
>>>>>> > > > > > > on hackrf_transfer: https://github.com/mossmann/hackrf  )
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > See project here: https://github.com/JiaoXianjun/
>>>>>>  repo BTLE
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > All link layer packet formats are supported. (Chapter
>>>>>> 2&3,
>>>>>> > > PartB,
>>>>>> > > > > > > Volume 6, Core_V4.0.pdf :
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> https://www.google.fi/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CCAQFjAA&url=https%3A%2F%2Fwww.bluetooth.org%2Fdocman%2Fhandlers%2Fdownloaddoc.ashx%3Fdoc_id%3D229737&ei=ui3gU4GkC-up0AW4q4GwBw&usg=AFQjCNFY1IFeFAAWwimnoaWMsIRZQvPDSw&sig2=wTgMMxNPJ52NHclpsQ4XhQ&bvm=bv.72197243,d.d2k
>>>>>> > > > > > >  )
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > It can be used to transmit arbitrary pre-defined BTLE
>>>>>> > > signal/packet
>>>>>> > > > > > > sequence, such as raw bits to GFSK modulator, iBeacon
>>>>>> packet,
>>>>>> > > > > Connection
>>>>>> > > > > > > establishment procedure packet in TI's website:
>>>>>> > > > > > > http://processors.wiki.ti.com/index.php/BLE_sniffer_guide
>>>>>> , or any
>>>>>> > > > > other
>>>>>> > > > > > > packets you want. Together with TI's packet sniffer, you
>>>>>> will have
>>>>>> > > > > full TX
>>>>>> > > > > > > and RX abilities. See video demo 1
>>>>>> http://youtu.be/Y8ttV5AEb-g
>>>>>> > > > > (outside
>>>>>> > > > > > > China) or video demo 2
>>>>>> > > http://v.youku.com/v_show/id_XNzUxMDIzNzAw.html
>>>>>> > > > > > > (inside China)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > ----Build:
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >     cd host
>>>>>> > > > > > > > >     mkdir build
>>>>>> > > > > > > > >     cd build
>>>>>> > > > > > > > >     cmake ../
>>>>>> > > > > > > > >     make
>>>>>> > > > > > > > >     sudo make install  (or not install, just use
>>>>>> btle_tx in
>>>>>> > > > > > > hackrf-tools/src)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > ----Usage method 1:
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >     btle_tx packet1 packet2 ... packetX ...  rN
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > ----Usage method 2:
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >     btle_tx packets.txt
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > In method 2, just those command line parameters
>>>>>> (packet1 ...
>>>>>> > > rN) in
>>>>>> > > > > > > method 1 are written/grouped in a .txt file as input of
>>>>>> btle_tx
>>>>>> > > tool.
>>>>>> > > > > One
>>>>>> > > > > > > parameter one line. A line start with "#" is regarded as
>>>>>> comment.
>>>>>> > > See
>>>>>> > > > > > > packets.txt example in hackrf-tools/src.
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > "packetX" is one string which describes one packet.
>>>>>> All packets
>>>>>> > > > > > > compose a packets sequence.
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > "rN" means the sequence will be repeated for N times.
>>>>>> If it is
>>>>>> > > not
>>>>>> > > > > > > specified, the sequence will only be sent once.
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > ----Format of packet descriptor "packetX"
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >
>>>>>> > > > >
>>>>>> channel_number-packet_type-field-value-field-value-...-Space-value
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > Each descriptor string starts with BTLE channel
>>>>>> number (0~39),
>>>>>> > > then
>>>>>> > > > > > > followed by packet_type
>>>>>> (RAW/iBeacon/ADV_IND/ADV_DIRECT_IND/etc.
>>>>>> > > See
>>>>>> > > > > all
>>>>>> > > > > > > format examples at the end), then followed by field-value
>>>>>> pair
>>>>>> > > which is
>>>>>> > > > > > > packet_type specific, at last there is Space-value pair
>>>>>> (optional)
>>>>>> > > > > where
>>>>>> > > > > > > the value specifies how many millisecond will be waited
>>>>>> after this
>>>>>> > > > > packet
>>>>>> > > > > > > sent.
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > ----iBeacon example: (iBeacon principle:
>>>>>> > > > > > > http://www.warski.org/blog/2014/01/how-ibeacons-work/ )
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >     ./btle_tx
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-iBeacon-AdvA-010203040506-UUID-B9407F30F5F8466EAFF925556B57FE6D-Major-0008-Minor-0009-TxPower-C5-Space-100
>>>>>> > > > > > >     r100
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > Above command sends iBeacon packet and repeats it 100
>>>>>> times
>>>>>> > > with
>>>>>> > > > > 100ms
>>>>>> > > > > > > time space (If you have "Locate" app in your iPhone/iPad,
>>>>>> it will
>>>>>> > > > > detect
>>>>>> > > > > > > the packet and show the iBeacon info.). The packet
>>>>>> descriptor
>>>>>> > > string:
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-iBeacon-AdvA-010203040506-UUID-B9407F30F5F8466EAFF925556B57FE6D-Major-0008-Minor-0009-TxPower-C5-Space-100
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > 37 -- channel 37 (one of BTLE Advertising channel 37
>>>>>> 38 39)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > iBeacon -- packet format key word which means iBeacon
>>>>>> format.
>>>>>> > > > > > > (Actually it is ADV_IND format in Core_V4.0.pdf)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > AdvA -- Advertising address (MAC address) which is
>>>>>> set as
>>>>>> > > > > 010203040506
>>>>>> > > > > > > (See Core_V4.0.pdf)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > UUID -- here we specify it as Estimote’s fixed UUID:
>>>>>> > > > > > > B9407F30F5F8466EAFF925556B57FE6D
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > Major -- major number of iBeacon format. (Here it is
>>>>>> 0008)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > Minor -- minor number of iBeacon format. (Here it is
>>>>>> 0009)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > Txpower -- transmit power parameter of iBeacon format
>>>>>> (Here it
>>>>>> > > is
>>>>>> > > > > C5)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > Space -- How many millisecond will be waited after
>>>>>> this packet
>>>>>> > > > > sent.
>>>>>> > > > > > > (Here it is 100ms)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > ----Connection establishment example: (See "Connection
>>>>>> > > > > establishment"
>>>>>> > > > > > > part of
>>>>>> http://processors.wiki.ti.com/index.php/BLE_sniffer_guide
>>>>>> > > )
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >     ./btle_tx
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-ADV_IND-TxAdd-0-RxAdd-0-AdvA-90D7EBB19299-AdvData-0201050702031802180418-Space-1000
>>>>>> > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-CONNECT_REQ-TxAdd-0-RxAdd-0-InitA-001830EA965F-AdvA-90D7EBB19299-AA-60850A1B-CRCInit-A77B22-WinSize-02-WinOffset-000F-Interval-0050-Latency-0000-Timeout-07D0-ChM-1FFFFFFFFF-Hop-9-SCA-5-Space-1000
>>>>>> > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_DATA-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-DATA-X-CRCInit-A77B22-Space-1000
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > Above simualtes a Connection establishment procedure
>>>>>> between
>>>>>> > > > > device 1
>>>>>> > > > > > > and device 2.
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > The 1st packet -- device 1 sends ADV_IND packet in
>>>>>> channel 37.
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > The 2nd packet -- After device 2 (in scanning state)
>>>>>> receives
>>>>>> > > the
>>>>>> > > > > ADV
>>>>>> > > > > > > packet from device 1, device 2 sends CONNECT_REQ packet
>>>>>> to request
>>>>>> > > > > > > connection setup with device 1. In this request packet,
>>>>>> there are
>>>>>> > > > > device 2
>>>>>> > > > > > > MAC address (InitA), target MAC address (device 1 MAC
>>>>>> address
>>>>>> > > AdvA),
>>>>>> > > > > Access
>>>>>> > > > > > > address (AA) which will be used by device 1 in following
>>>>>> packet
>>>>>> > > > > sending in
>>>>>> > > > > > > data channel, CRC initilization value for following
>>>>>> device 1
>>>>>> > > sending
>>>>>> > > > > > > packet, Hopping channel information (ChM and Hop) for
>>>>>> data channel
>>>>>> > > > > used by
>>>>>> > > > > > > device 1, etc.
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > The 3rd packet -- device 1 send an empty Link layer
>>>>>> data PDU in
>>>>>> > > > > > > channel 9 (decided by hopping scheme) according to those
>>>>>> connection
>>>>>> > > > > request
>>>>>> > > > > > > information received from device 2. (One "X" after field
>>>>>> "DATA"
>>>>>> > > means
>>>>>> > > > > there
>>>>>> > > > > > > is no data for this field )
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > Time space between packets are 1s (1000ms). Tune TI's
>>>>>> packet
>>>>>> > > > > sniffer
>>>>>> > > > > > > to channel 37, then above establishment procedure will be
>>>>>> captured.
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > ----Packet descriptor examples for all formats:
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > RAW packets: (All bits will be sent to GFSK modulator
>>>>>> directly)
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 13-RAW-AAD6BE898E5F134B5D86F2999CC3D7DF5EDF15DEE39AA2E5D0728EB68B0E449B07C547B80EAA8DD257A0E5EACB0B
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > ADVERTISING CHANNEL packets:
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-IBEACON-AdvA-010203040506-UUID-B9407F30F5F8466EAFF925556B57FE6D-Major-0008-Minor-0009-TxPower-C5
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-ADV_IND-TxAdd-1-RxAdd-0-AdvA-010203040506-AdvData-00112233445566778899AABBCCDDEEFF
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > >
>>>>>> 37-ADV_DIRECT_IND-TxAdd-1-RxAdd-0-AdvA-010203040506-InitA-0708090A0B0C
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-ADV_NONCONN_IND-TxAdd-1-RxAdd-0-AdvA-010203040506-AdvData-00112233445566778899AABBCCDDEEFF
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-ADV_SCAN_IND-TxAdd-1-RxAdd-0-AdvA-010203040506-AdvData-00112233445566778899AABBCCDDEEFF
>>>>>> > > > > > > > >
>>>>>> > > > >
>>>>>> 37-SCAN_REQ-TxAdd-1-RxAdd-0-ScanA-010203040506-AdvA-0708090A0B0C
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-SCAN_RSP-TxAdd-1-RxAdd-0-AdvA-010203040506-ScanRspData-00112233445566778899AABBCCDDEEFF
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 37-CONNECT_REQ-TxAdd-1-RxAdd-0-InitA-010203040506-AdvA-0708090A0B0C-AA-01020304-CRCInit-050607-WinSize-08-WinOffset-090A-Interval-0B0C-Latency-0D0E-Timeout-0F00-ChM-0102030405-Hop-3-SCA-4
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > DATA CHANNEL packets:
>>>>>> > > > > > > > >
>>>>>> > > > > > > > >
>>>>>> > > > >
>>>>>> 9-LL_DATA-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-DATA-X-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_CONNECTION_UPDATE_REQ-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-WinSize-02-WinOffset-000F-Interval-0050-Latency-0000-Timeout-07D0-Instant-0000-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_CHANNEL_MAP_REQ-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-ChM-1FFFFFFFFF-Instant-0001-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_TERMINATE_IND-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-ErrorCode-00-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_ENC_REQ-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-Rand-0102030405060708-EDIV-090A-SKDm-0102030405060708-IVm-090A0B0C-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_ENC_RSP-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-SKDs-0102030405060708-IVs-01020304-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > >
>>>>>> 9-LL_START_ENC_REQ-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > >
>>>>>> 9-LL_START_ENC_RSP-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_UNKNOWN_RSP-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-UnknownType-01-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_FEATURE_REQ-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-FeatureSet-0102030405060708-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_FEATURE_RSP-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-FeatureSet-0102030405060708-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > >
>>>>>> 9-LL_PAUSE_ENC_REQ-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > >
>>>>>> 9-LL_PAUSE_ENC_RSP-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_VERSION_IND-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-VersNr-01-CompId-0203-SubVersNr-0405-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> 9-LL_REJECT_IND-AA-60850A1B-LLID-1-NESN-0-SN-0-MD-0-ErrorCode-00-CRCInit-A77B22
>>>>>> > > > > > > > >
>>>>>> > > > > > > > > _______________________________________________
>>>>>> > > > > > > > > HackRF-dev mailing list
>>>>>> > > > > > > > > HackRF-dev at greatscottgadgets.com
>>>>>> > > > > > > > > http://nine.pairlist.net/mailman/listinfo/hackrf-dev
>>>>>> > > > > > >
>>>>>> > > > > > > > _______________________________________________
>>>>>> > > > > > > > HackRF-dev mailing list
>>>>>> > > > > > > > HackRF-dev at greatscottgadgets.com
>>>>>> > > > > > > > http://nine.pairlist.net/mailman/listinfo/hackrf-dev
>>>>>> > > > > > >
>>>>>> > > > > > >
>>>>>> > > > >
>>>>>> > >
>>>>>> > >
>>>>>> > >
>>>>>> > >
>>>>>> > >
>>>>>> > >
>>>>>>
>>>>>> > _______________________________________________
>>>>>> > HackRF-dev mailing list
>>>>>> > HackRF-dev at greatscottgadgets.com
>>>>>> > http://nine.pairlist.net/mailman/listinfo/hackrf-dev
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>> _______________________________________________
>> HackRF-dev mailing list
>> HackRF-dev at greatscottgadgets.com
>>
> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
>>
>>
>
>
> --
> @SamyKamkar <https://twitter.com/samykamkar>
> http://samy.pl
>
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