Packet 0x90

PSOv1 clients send this packet to log onto the login server. The server should then respond with its own Packet 0x90 indicating a response to the login.

Dreamcast Packet Format (Client->Server)

BytesMeaning
0x00Packet Type (0x90)
0x01Flags (0x00)
0x02-0x03Packet Size (0x0028)
0x04-0x0BSerial Number
0x0C-0x14Unused
0x15-0x1CAccess Key
0x1D-0x27Unused

Dreamcast Packet Format (Server->Client)

BytesMeaning
0x00Packet Type (0x90)
0x01Flags (Login Response)
0x02-0x03Packet Size (0x0004)

Login Responses

FlagMeaning
0Login Ok (Client sends a Packet 0x93 next)
1New user (Client sends a Packet 0x92 next)
2Login Ok (Client sends a Packet 0x93 next)
3Invalid Serial Number and/or Access Key (Client disconnects)