Alex X
64 lines
1.5 KiB
Markdown
64 lines
1.5 KiB
Markdown
# TUTK
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The most terrible protocol I have ever had to work with.
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## Messages
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Ping from camera (24b). The shortest message.
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```
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off sample
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0 0402 tutk magic
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2 190a tutk version (120a, 190a...)
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4 0800 msg size = len(b)-16 = 24-16
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6 0000 channel seq (always 0 for ping)
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8 2804 msg type (2804 - ping from camera, 0804 - usual msg from camera)
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10 1200 direction (12 - from camera, 21 - from client)
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12 00000000 fixed
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16 7ecc93c4 random
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20 56c2561f random
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```
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Usual msg from camera (52b + msg data).
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```
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off sample
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12 e6e8 same bytes b[20:22]
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14 0000 channel (0, 1, 5)
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16 0c00 fixed
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18 0000 fixed
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20 e6e839da random session id
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24 66b0dc14 random session id
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28 0070 command
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30 0b00 version
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32 0100 command seq
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34 0000 ???
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36 00000000 ???
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40 00000000 ???
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44 e300 msg data size
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46 0000 ???
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48 8f15a02f random msg id
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52 ... msg data
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```
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Message with media from camera.
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```
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off sample
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28 0c00 command
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30 0b00 version
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32 7700 command seq
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34 0000 ??? data only for last message per pack (14/14)
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36 0200 pack seq, don't know how packs used
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38 0914 09/14 - message seq/messages per packs
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40 01000000 fixed
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42 0500 command 2
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44 3200 command 2 seq
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46 4f00 chunks count per this frame
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48 1b00 chunk seq, starts from 0 (wrong for last chunk)
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50 0004 frame data size
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52 c8f6 random msg id
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54 01000000 previous frame seq, starts from 0
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58 02000000 current frame seq, starts from 1
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```
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