Protocol:Packet Header
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Different versions of PSO use slightly different formats for the headers on all packets sent to and from the server. PSO versions up to, and including, PSOGC use a 4-byte header, while PSO Blue Burst uses an 8-byte header. All packets must be some multiple of their header in size.
Dreamcast/Gamecube Header Format
Bytes | Meaning |
---|---|
0x00 | Packet Type |
0x01 | Flags |
0x02-0x03 | Packet Size (Little-Endian) |
PC Header Format
Bytes | Meaning |
---|---|
0x00-0x01 | Packet Size (Little-Endian) |
0x02 | Packet Type |
0x03 | Flags |
Blue Burst Header Format
Bytes | Meaning |
---|---|
0x00-0x01 | Packet Size (Little-Endian) |
0x02-0x03 | Packet Type (Little-Endian) |
0x04-0x07 | Flags |