Editing DS4-BT

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===== SET FEATURE=====
===== SET FEATURE=====
These reports are sent by the PS4. The DS4 replies with a handshake, which is a packet with a single 0x00 byte.


====== 0x03 ======
====== 0x03 ======
The transaction type is SET REPORT (0x05), and the report type is FEATURE (0x03).
The protocol code is 0x03.
Most bytes from index 4 change between two reports.
Report example:
<pre>0x53, 0x03, 0x02, 0x00, 0xf1, 0xdf, 0xd3, 0x7b, 0x4f, 0x49, 0x0b, 0x0b, 0x7c, 0x79, 0xde, 0xad,
0x5d, 0xa3, 0x41, 0x8a, 0x9c, 0x2e, 0xaf, 0x09, 0xc4, 0xa6, 0x80, 0xb4, 0x82, 0x87, 0x2c, 0xbf,
0x86, 0xe0, 0x2a, 0x86, 0x60, 0xa0, 0x23, 0x33</pre>
{| class="wikitable"
|+Data Format
|-
|width="100"|byte index
|width="60"|bit 7
|width="60"|bit 6
|width="60"|bit 5
|width="60"|bit 4
|width="60"|bit 3
|width="60"|bit 2
|width="60"|bit 1
|width="60"|bit 0
|-
|[0]
|colspan="4"|0x05
|colspan="2"|0x00
|colspan="4"|0x03
|-
|[1]
|colspan="8"|0x03
|-
|[2]
|colspan="8"|sequence counter (init = 0x02, step = 1)
|-
|[3]
|colspan="8"|0x00
|-
|[4 - 35]
|colspan="8"|TODO, work in progress.
|-
|[36 - 39]
|colspan="8"|CRC-32 of the previous bytes.
|}


====== 0xF0 ======
====== 0xF0 ======
The transaction type is SET REPORT (0x05), and the report type is FEATURE (0x03).
The protocol code is 0xf0.
This report is part of the authentication sequence: it contains challenge data.
Report example:
<pre>0x53, 0xf0, 0x01, 0x00, 0x00, 0x64, 0x01, 0x21, 0x58, 0x26, 0x03, 0xcc, 0xb8, 0x28, 0x78, 0xa9,
0xb5, 0x8c, 0x2c, 0x90, 0x3b, 0xe2, 0xf7, 0xee, 0x1c, 0x91, 0x2b, 0x0c, 0x79, 0xa6, 0xe7, 0xae,
0x7e, 0x49, 0xee, 0x36, 0x72, 0x81, 0xc2, 0x25, 0x41, 0x74, 0x45, 0x01, 0x15, 0xa0, 0x23, 0x1a,
0x4c, 0x27, 0x31, 0xcc, 0xc5, 0xe0, 0x8d, 0x6c, 0x1e, 0x42, 0x83, 0x93, 0x20, 0xa0, 0x35, 0xac,
0x82</pre>
{| class="wikitable"
|+Data Format
|-
|width="100"|byte index
|width="60"|bit 7
|width="60"|bit 6
|width="60"|bit 5
|width="60"|bit 4
|width="60"|bit 3
|width="60"|bit 2
|width="60"|bit 1
|width="60"|bit 0
|-
|[0]
|colspan="4"|0x05
|colspan="2"|0x00
|colspan="4"|0x03
|-
|[1]
|colspan="8"|0xf0
|-
|[2]
|colspan="8"|sequence counter (init = 0x01, step = 1)
|-
|[3]
|colspan="8"|report counter (init = 0x00, step = 1, max = 0x04)
|-
|[4]
|colspan="8"|0x00
|-
|[5 - 60]
|colspan="8"|Challenge data.
|-
|[61 - 64]
|colspan="8"|CRC-32 of the previous bytes.
|}
The packet with report counter = 0x04 only carries 32 bytes of data (it is padded with zeros). Therefore the length of the challenge message is 4x56+32 = 256 bytes.




{{Reverse Engineering}}
{{Reverse Engineering}}
<noinclude>[[Category:Main]]</noinclude>
<noinclude>[[Category:Main]]</noinclude>
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