Difference between revisions of "MK8 Network Protocol"
Jump to navigation
Jump to search
| Line 5: | Line 5: | ||
== General description == | == General description == | ||
| − | The [[Mario Kart 8]] traffic starts with a name resolution. | + | The [[Mario Kart 8]] traffic starts with a name resolution. The loginserver (api-eu.olv.nintendo.net) has multiple IP addresses with a TTL of 60: |
* 54.72.185.220 | * 54.72.185.220 | ||
| Line 13: | Line 13: | ||
and maybe some more | and maybe some more | ||
| − | + | First the game connects the Nintendoservers, while racing, all WiiUs communicate directly to each other. | |
| − | + | All P2P packets have a header, a payload and a checksum | |
| − | + | == The P2P header == | |
| − | <pre> | + | <pre>typedef struct udp_header_t |
| − | typedef struct | ||
{ | { | ||
| − | /*00*/ u32 | + | /*00*/ u32 game_magic; // always 32ab.9864 |
| − | /*04*/ | + | /*04*/ u32 unknown_04; // |
| − | + | /*08*/ u16 unknown_08; // sequence id? | |
| − | /*08*/ u16 | + | /*0a*/ u16 unknown_0a; // sequence id 2 or empty |
| − | /*0a*/ u16 | + | /*0c*/ u16 client_slot; // client slot (0 to b) |
| − | /*0c*/ u16 | + | /*0e*/ u16 data_length; // little endian, data length without header and checksum |
| − | /*0e*/ u16 | + | /*10*/ u32 unknown_10; // ? |
| − | /*10*/ u32 | + | /*14*/ u32 unknown_14; // sequence id 3? |
| − | /*14*/ | + | /*18*/ u32 unknown_18; // ? |
| − | + | /*1c*/ u32 unknown_1c; // always 0x00000000 | |
| − | /*18*/ u32 | ||
| − | /*1c*/ u32 | ||
| − | |||
} | } | ||
| + | __attribute__ ((packed)) udp_header_t; | ||
</pre> | </pre> | ||
| − | After the header, there is some data (sometimes empty), and after the data there | + | After the header, there is some data (sometimes empty), and after the data there is a 16-byte-checksum which looks like a MD5 hash. |
| + | |||
| + | == Record types == | ||
| + | |||
| + | * [[MK8_Network_Protocol/USERINFO|USERINFO]] | ||
[[category:File Format]] | [[category:File Format]] | ||
[[category:Network Protocol|!]] | [[category:Network Protocol|!]] | ||
[[mkw:MKWii Network Protocol]] | [[mkw:MKWii Network Protocol]] | ||
Revision as of 22:52, 26 December 2014
This page describes the network protocol used by Mario Kart 8. It is very incomplete at this moment.
General description
The Mario Kart 8 traffic starts with a name resolution. The loginserver (api-eu.olv.nintendo.net) has multiple IP addresses with a TTL of 60:
- 54.72.185.220
- 54.229.32.160
- 54.246.156.135
- 176.34.135.172
and maybe some more
First the game connects the Nintendoservers, while racing, all WiiUs communicate directly to each other.
All P2P packets have a header, a payload and a checksum
The P2P header
typedef struct udp_header_t
{
/*00*/ u32 game_magic; // always 32ab.9864
/*04*/ u32 unknown_04; //
/*08*/ u16 unknown_08; // sequence id?
/*0a*/ u16 unknown_0a; // sequence id 2 or empty
/*0c*/ u16 client_slot; // client slot (0 to b)
/*0e*/ u16 data_length; // little endian, data length without header and checksum
/*10*/ u32 unknown_10; // ?
/*14*/ u32 unknown_14; // sequence id 3?
/*18*/ u32 unknown_18; // ?
/*1c*/ u32 unknown_1c; // always 0x00000000
}
__attribute__ ((packed)) udp_header_t;
After the header, there is some data (sometimes empty), and after the data there is a 16-byte-checksum which looks like a MD5 hash.