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Revision as of 11:12, 24 April 2013

847 bytes added ,  11:12, 24 April 2013
Re-wrote page
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[[Category:File formats]]
 
[[Category:File formats]]
−
'''Title metadata''' is a format used to store information about a title (a single standalone game, channel, etc.) and all its installed contents, including which contents they consist of and their SHA1 hashes.
+
'''Title metadata''' is a format used to store information about a title (installed title, DLC, etc.) and all its installed contents, including which contents they consist of and their SHA256 hashes.
    
[http://git.daifukkat.su/?p=3dshax.git Code is available] by trap15 to parse the available information from the 3DS format of TMDs.
 
[http://git.daifukkat.su/?p=3dshax.git Code is available] by trap15 to parse the available information from the 3DS format of TMDs.
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== Structure ==
 
== Structure ==
   −
All the data in the file represented in Big Endian.
+
All the data in the file represented in Big Endian.  
   −
=== Header ===
   
{| class="wikitable"
 
{| class="wikitable"
 
| align="center" style="background:#f0f0f0;"|'''Offset'''
 
| align="center" style="background:#f0f0f0;"|'''Offset'''
−
| align="center" style="background:#f0f0f0;"|''' '''
   
| align="center" style="background:#f0f0f0;"|'''Size'''
 
| align="center" style="background:#f0f0f0;"|'''Size'''
 
| align="center" style="background:#f0f0f0;"|'''Description'''
 
| align="center" style="background:#f0f0f0;"|'''Description'''
 
|-
 
|-
−
| ''RSA 2048''||''RSA 4096''||||
+
| 0x0||Y||Signature Data
 
|-
 
|-
−
| 0x000||0x000||4||Signature type
+
| Y ||0xC4||Header
 
|-
 
|-
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| 0x004||0x004||256 / 512||Signature
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| 0xC4 + Y||0x24*64||Content Info Records.
 
|-
 
|-
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| 0x104||0x204||60||Padding modulo 64
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| 0x9C4 + Y||0x30*ContentCount||Content Chunk Records.
 +
|}
 +
 
 +
=== Signature Data ===
 +
The total size of this section is referred to as "Y" in the overall TMD structure. The signature is of the header of the TMD.
 +
{| class="wikitable"
 +
| align="center" style="background:#f0f0f0;"|'''Offset'''
 +
| align="center" style="background:#f0f0f0;"|'''Size'''
 +
| align="center" style="background:#f0f0f0;"|'''Description'''
 
|-
 
|-
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| 0x140||0x240||64||Issuer
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| 0x0||0x4||Signature Type
 
|-
 
|-
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| 0x180||0x280||1||Version
+
| 0x4 ||X||Signature
 
|-
 
|-
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| 0x181||0x281||1||ca_crl_version
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| 0x4 + X|| ||Padding Aligning the signature data to 0x40 bytes
 +
|}
 +
 
 +
==== Signature Type ====
 +
{| class="wikitable"
 
|-
 
|-
−
| 0x182||0x282||1||signer_crl_version
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! Value
 +
! Signature Method
 +
! Signature Size (X)
 
|-
 
|-
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| 0x183||0x283||1||Padding modulo 64
+
| 0x010000
 +
| RSA_4096 SHA1
 +
| 0x200
 
|-
 
|-
−
| 0x184||0x284||8||System Version
+
| 0x010001
 +
| RSA_2048 SHA1
 +
| 0x100
 
|-
 
|-
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| 0x18C||0x28C||8||Title ID
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| 0x010002
 +
| Elliptic Curve
 +
| 0x40
 
|-
 
|-
−
| 0x194||0x294||4||Title type
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| 0x010003
 +
| RSA_4096 SHA256
 +
| 0x200
 
|-
 
|-
−
| 0x198||0x298||2||Group ID
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| 0x010004
 +
| RSA_2048 SHA256
 +
| 0x100
 +
|}
 +
 
 +
=== Header ===
 +
 
 +
{| class="wikitable"
 +
| align="center" style="background:#f0f0f0;"|'''Offset'''
 +
| align="center" style="background:#f0f0f0;"|'''Size'''
 +
| align="center" style="background:#f0f0f0;"|'''Description'''
 +
|-
 +
| 0x0||0x40||Signature Issuer
 +
|-
 +
| 0x40||0x1||Version
 +
|-
 +
| 0x41||0x1||ca_crl_version
 +
|-
 +
| 0x42||0x1||signer_crl_version
 +
|-
 +
| 0x43||0x1||Reserved
 +
|-
 +
| 0x44||0x8||System Version
 +
|-
 +
| 0x4C||0x8||Title ID
 
|-
 
|-
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| 0x19A||0x29A||62||reserved
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| 0x54||0x4||Title Type
 
|-
 
|-
−
| 0x1D8||0x2D8||4||Access rights
+
| 0x58||0x2||Group ID
 
|-
 
|-
−
| 0x1DC||0x2DC||2||Title version
+
| 0x5A||0x3C||Reserved
 
|-
 
|-
−
| 0x1DE||0x2DE||2||Number of contents (contcount)
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| 0x98||0x4||Access Rights
 
|-
 
|-
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| 0x1E0||0x2E0||2||Boot content
+
| 0x9C||0x2||Title Version
 
|-
 
|-
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| 0x1E2||0x2E2||2||Padding
+
| 0x9E||0x02||Content Count
 
|-
 
|-
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| 0x1E4||0x2E4||32||SHA-256 hash of the 36*64 byte long content info record blob (next field)
+
| 0xA0||0x2||Boot Content
 
|-
 
|-
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| 0x204||0x304||36*64||Content info records
+
| 0xA2||0x2||Padding
 
|-
 
|-
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| 0xB04||0xC04||48*contcount|| Content chunk records
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| 0xA4||0x20||SHA-256 Hash of the Content Info Records
 
|}
 
|}
   −
=== Content info records ===
+
=== Content Info Records ===
 +
 
 +
There are 64 of these records, usually only the first is used.
 +
 
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
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=== Content chunk records ===
 
=== Content chunk records ===
 +
There is one of these for each content contained in this title. (Determined by "Content Count" in the TMD Header).
 +
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
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|-
 
|-
 
| 0x10
 
| 0x10
−
| 32
+
| 0x20
 
| SHA-256 hash
 
| SHA-256 hash
 
|}
 
|}
−
=== Content Index ===
+
==== Content Index ====
    
This indicates the content type:
 
This indicates the content type:
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|}
 
|}
   −
=== Content Type flags ===
+
==== Content Type flags ====
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
3dsguy
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