Title metadata
| This is an old revision of this page, as edited by Bushing (talk | contribs) at 13:18, 16 January 2008. It may differ significantly from the current revision. |
Nintendo Wii Title-Metadata (tmd) file structure
A "title" is a standalone entity -- a game, a channel, etc. Titles can be made up of multiple "contents". (Don't ask me I just work here.)
// Common labels used in this file: // magicnum - control ints or shorts found in all tmds // zeros - bytes all filled with zeros // undef - non-zero data of unknown purpose // sign - zero-terminated string padded to 64 bytes // probably used in the signing process // hash - probably 20, 512 or 1024 byte hashes // // # in front of a comment signifies entires that are // the same in each tmd-files the author checked typedef unsigned char u8; typedef unsigned short u16; typedef unsigned int u32; typedef unsigned long u64;
typedef struct {
u32 cid; // content id
u16 index; // # number of the file
u16 type;
u64 size;
u8 hash [20]; // SHA1 hash content
} content_record; // size: 0x30 bytes
typedef struct{
u32 magicnum0 [0x1]; // # 0x00010001
u8 hash0 [0x100]; // ?
u8 zeros0 [0x3C]; // # 0
u8 sign0 [0x40]; // # Root-CA-CP
u8 undef0 [0x10]; // # ?
u8 code [0x4]; // game code in ascii
u32 magicnum1 [0x1]; // # 0x00000001
u8 publ [0x2]; // publisher id
u8 zeros1 [0x2]; // # 0
u8 undef1 [0x4]; // ?
u8 undef2 [0xE]; // ? 0x80
u8 zeros2 [0x2E]; // # 0
u8 undef3 [0x8]; // ?
VC_TMD_FILE files[7]; // 7 file entries
u32 magicnum2 [0x1]; // # 0x00010001
u8 hash1 [0x100]; // # ?
u8 zeros3 [0x3C]; // # 0
u8 sign1 [0x40]; // # Root-CA
u32 magicnum3 [0x1]; // # 0x00000001
u8 sign2 [0x40]; // # CP
u8 hash2 [0x104]; // # ?
u32 magicnum4 [0x1]; // # 0x00010001
u8 zeros4 [0x34]; // # 0
u32 magicnum5 [0x1]; // # 0x00100000
u8 hash3 [0x200]; // # ?
u8 zeros5 [0x3C]; // # 0
u8 sign3 [0x40]; // # Root
u32 magicnum6 [0x1]; // # 0x00000001
u8 sign4 [0x40]; // # CA
u8 hash4 [0x104]; // # ?
u32 magicnum7 [0x1]; // # 0x00010001
u8 zeros6 [0x34]; // # 0
}VC_TMD; // size: 09E0 bytes