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CNMT (view source)

Revision as of 19:28, 18 October 2022

7,574 bytes added ,  19:28, 18 October 2022
Fix new field name
Line 1: Line 1: −
= Metadata file =
+
This is the metadata file that ends in <code>".cnmt{.nca}"</code> or <code>"meta0.ncd"</code>. This seems to replace the TMD format.
−
This is the file that ends in <code>".cnmt.nca"</code> or <code>"meta0.ncd"</code>.
+
 
 +
The official name for CNMT is "PackagedContentMeta".
 +
 
 +
= PackagedContentMetaHeader =
 +
This is "nn::ncm::PackagedContentMetaHeader".
   −
It starts with an header:
   
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
 
|-
 
|-
Line 10: Line 13:  
|-
 
|-
 
| 0x0
 
| 0x0
−
| 8
+
| 0x8
−
| Patch title id
+
| Id
 
|-
 
|-
 
| 0x8
 
| 0x8
−
| 4
+
| 0x4
−
|
+
| Version
 
|-
 
|-
 
| 0xC
 
| 0xC
−
| 1
+
| 0x1
−
| Type (see [[Content_Manager_services#Title_Types|Title Types]])
+
| [[NCM_services#ContentMetaType|ContentMetaType]]
 
|-
 
|-
 
| 0xD
 
| 0xD
−
| 1
+
| 0x1
−
|
+
| Reserved
 
|-
 
|-
 
| 0xE
 
| 0xE
−
| 2
+
| 0x2
−
| Offset to table
+
| ExtendedHeaderSize
 
|-
 
|-
 
| 0x10
 
| 0x10
−
| 2
+
| 0x2
−
| Number of entries
+
| ContentCount
 
|-
 
|-
 
| 0x12
 
| 0x12
−
| 14
+
| 0x2
−
|
+
| ContentMetaCount
 +
|-
 +
| 0x14
 +
| 0x1
 +
| ContentMetaAttributes (0=None, 1=IncludesExFatDriver, 2=Rebootless, 4=Compacted)
 +
|-
 +
| 0x15
 +
| 0x3
 +
| Reserved
 +
|-
 +
| 0x18
 +
| 0x4
 +
| RequiredDownloadSystemVersion
 +
|-
 +
| 0x1C
 +
| 0x4
 +
| Reserved
 +
|}
 +
 
 +
= SystemUpdateMetaExtendedHeader =
 +
This is "nn::ncm::SystemUpdateMetaExtendedHeader".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x4
 +
| ExtendedDataSize
 +
|}
 +
 
 +
= ApplicationMetaExtendedHeader =
 +
This is "nn::ncm::ApplicationMetaExtendedHeader".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x8
 +
| PatchId
 +
|-
 +
| 0x8
 +
| 0x4
 +
| RequiredSystemVersion
 +
|-
 +
| 0xC
 +
| 0x4
 +
| RequiredApplicationVersion
 +
|}
 +
 
 +
= PatchMetaExtendedHeader =
 +
This is "nn::ncm::PatchMetaExtendedHeader".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x8
 +
| ApplicationId
 +
|-
 +
| 0x8
 +
| 0x4
 +
| RequiredSystemVersion
 +
|-
 +
| 0xC
 +
| 0x4
 +
| ExtendedDataSize
 +
|-
 +
| 0x10
 +
| 0x8
 +
| Reserved
 +
|}
 +
 
 +
= AddOnContentMetaExtendedHeader =
 +
This is "nn::ncm::AddOnContentMetaExtendedHeader".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x8
 +
| ApplicationId
 +
|-
 +
| 0x8
 +
| 0x4
 +
| RequiredApplicationVersion
 +
|-
 +
| 0xC
 +
| 0x1
 +
| [15.0.0+] ContentAccessibilities ([1.0.0-14.1.2] Reserved)
 +
|-
 +
| 0xD
 +
| 0x3
 +
| Reserved
 
|-
 
|-
−
| 0x20
+
| 0x10
−
| 16
+
| 0x8
−
| Original title-id
+
| [15.0.0+] DataPatchId
 +
|}
 +
 
 +
= DeltaMetaExtendedHeader =
 +
This is "nn::ncm::DeltaMetaExtendedHeader".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x8
 +
| ApplicationId
 +
|-
 +
| 0x8
 +
| 0x4
 +
| ExtendedDataSize
 +
|-
 +
| 0xC
 +
| 0x4
 +
| Reserved
 +
|}
 +
 
 +
= DataPatchMetaExtendedHeader =
 +
This is "nn::ncm::DataPatchMetaExtendedHeader".
 +
 
 +
This was added with [15.0.0+].
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x8
 +
| DataId
 +
|-
 +
| 0x8
 +
| 0x8
 +
| ApplicationId
 +
|-
 +
| 0x10
 +
| 0x4
 +
| RequiredApplicationVersion
 +
|-
 +
| 0x14
 +
| 0x4
 +
| ExtendedDataSize
 +
|-
 +
| 0x18
 +
| 0x8
 +
| Reserved
 
|}
 
|}
   −
Each entry is 0x38 bytes:
+
= PackagedContentInfo =
 +
This is "nn::ncm::PackagedContentInfo".
    
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
Line 51: Line 213:  
|-
 
|-
 
| 0x0
 
| 0x0
−
| 32
+
| 0x20
−
| Hash
+
| Hash (SHA256 of the referenced content)
 
|-
 
|-
 
| 0x20
 
| 0x20
−
| 16
+
| 0x10
−
| NcaId [same as first 16-bytes of hash]
+
| ContentId
 
|-
 
|-
 
| 0x30
 
| 0x30
−
| 6
+
| [15.0.0+] 0x5 ([1.0.0-14.1.2] 0x6)
 
| Size
 
| Size
 +
|-
 +
| 0x35
 +
| 0x1
 +
| [15.0.0+] ContentAttributes
 
|-
 
|-
 
| 0x36
 
| 0x36
−
| 1
+
| 0x1
−
| Type (0=meta, 1=program, 2=data, 3=control, 4=html, 5=legal)
+
| ContentType (0=Meta, 1=Program, 2=Data, 3=Control, 4=[[Internet_Browser|HtmlDocument]], 5=[[Internet_Browser|LegalInformation]], 6=[[NCA_Format|DeltaFragment]])
 
|-
 
|-
 
| 0x37
 
| 0x37
−
| 1
+
| 0x1
−
|
+
| IdOffset
 +
|}
 +
 
 +
= ContentMetaInfo =
 +
This is "nn::ncm::ContentMetaInfo".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x8
 +
| Id
 +
|-
 +
| 0x8
 +
| 0x4
 +
| Version
 +
|-
 +
| 0xC
 +
| 0x1
 +
| [[NCM_services#Title_Types|ContentMetaType]]
 +
|-
 +
| 0xD
 +
| 0x1
 +
| ContentMetaAttributes (0=None, 1=IncludesExFatDriver, 2=Rebootless, 4=Compacted)
 +
|-
 +
| 0xE
 +
| 0x2
 +
| Reserved
 +
|}
 +
 
 +
This is used for SystemUpdate, see here: [[NCM_services#ReadEntryMetaRecords]].
 +
 
 +
= SystemUpdateMetaExtendedData =
 +
This is "nn::ncm::SystemUpdateMetaExtendedData".
 +
 
 +
If the Version field is 1, the format is:
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x4
 +
| Version
 +
|-
 +
| 0x4
 +
| 0x4
 +
| VariationCount
 +
|-
 +
| 0x8
 +
| 0x20 * VariationCount
 +
| [[#FirmwareVariationInfo|FirmwareVariationInfo]] (Version 1)
 +
|}
 +
 
 +
If the Version field is 2, the format is:
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x4
 +
| Version
 +
|-
 +
| 0x4
 +
| 0x4
 +
| VariationCount
 +
|-
 +
| 0x8
 +
| 0x4 * VariationCount
 +
| FirmwareVariationId
 +
|-
 +
| Variable
 +
| 0x20 * VariationCount
 +
| [[#FirmwareVariationInfo|FirmwareVariationInfo]] (Version 2)
 +
|-
 +
| Variable
 +
| 0x10 * MetaCount (from [[#FirmwareVariationInfo|FirmwareVariationInfo]] (Version 2))
 +
| [[#ContentMetaInfo|ContentMetaInfo]] (if ReferToBase is False)
 +
|}
 +
 
 +
== FirmwareVariationInfo ==
 +
This is "FirmwareVariationInfo ".
 +
 
 +
If the Version field is 1, the format is:
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x4
 +
| FirmwareVariationId
 +
|-
 +
| 0x4
 +
| 0x1C
 +
| Reserved
 +
|}
 +
 
 +
If the Version field is 2, the format is:
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x1
 +
| ReferToBase (0=False, 1=True)
 +
|-
 +
| 0x1
 +
| 0x3
 +
| Reserved
 +
|-
 +
| 0x4
 +
| 0x4
 +
| MetaCount
 +
|-
 +
| 0x8
 +
| 0x18
 +
| Reserved
 +
|}
 +
 
 +
= PatchMetaExtendedData =
 +
This is "nn::ncm::PatchMetaExtendedData".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x4
 +
| PatchHistoryHeaderCount
 +
|-
 +
| 0x4
 +
| 0x4
 +
| PatchDeltaHistoryCount
 +
|-
 +
| 0x8
 +
| 0x4
 +
| PatchDeltaHeaderCount
 +
|-
 +
| 0xC
 +
| 0x4
 +
| FragmentSetCount
 +
|-
 +
| 0x10
 +
| 0x4
 +
| PatchHistoryContentInfoCount
 +
|-
 +
| 0x14
 +
| 0x4
 +
| PatchDeltaPackagedContentInfoCount
 +
|-
 +
| 0x18
 +
| 0x4
 +
| Reserved
 +
|-
 +
| 0x1C
 +
| 0x38 * PatchHistoryHeaderCount
 +
| [[#PatchHistoryHeader|PatchHistoryHeader]]
 +
|-
 +
| Variable
 +
| 0x28 * PatchDeltaHistoryCount
 +
| [[#PatchDeltaHistory|PatchDeltaHistory]]
 +
|-
 +
| Variable
 +
| 0x28 * PatchDeltaHeaderCount
 +
| [[#PatchDeltaHeader|PatchDeltaHeader]]
 +
|-
 +
| Variable
 +
| 0x34 * FragmentSetCount
 +
| [[#FragmentSet|FragmentSet]]
 +
|-
 +
| Variable
 +
| 0x18 * PatchHistoryContentInfoCount
 +
| [[#PackagedContentInfo|PatchHistoryContentInfo]] ([[#PackagedContentInfo|PackagedContentInfo]] without the Hash entry)
 +
|-
 +
| Variable
 +
| 0x38 * PatchDeltaPackagedContentInfoCount
 +
| [[#PackagedContentInfo|PatchDeltaPackagedContentInfo]]
 +
|-
 +
| Variable
 +
| 0x4 * FragmentIndicatorCount (from [[#FragmentSet|FragmentSet]])
 +
| [[#FragmentIndicator|FragmentIndicator]]
 +
|}
 +
 
 +
== PatchHistoryHeader ==
 +
This is "nn::ncm::PatchHistoryHeader".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x10
 +
| ContentMetaKey
 +
|-
 +
| 0x10
 +
| 0x20
 +
| Digest
 +
|-
 +
| 0x30
 +
| 0x2
 +
| ContentInfoCount
 +
|-
 +
| 0x32
 +
| 0x6
 +
| Reserved
 +
|}
 +
 
 +
== PatchDeltaHistory ==
 +
This is "nn::ncm::PatchDeltaHistory".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x8
 +
| SourcePatchId
 +
|-
 +
| 0x8
 +
| 0x8
 +
| DestinationPatchId
 +
|-
 +
| 0x10
 +
| 0x4
 +
| SourceVersion
 +
|-
 +
| 0x14
 +
| 0x4
 +
| DestinationVersion
 +
|-
 +
| 0x18
 +
| 0x8
 +
| DownloadSize
 +
|-
 +
| 0x20
 +
| 0x8
 +
| Reserved
 +
|}
 +
 
 +
== PatchDeltaHeader ==
 +
This is "nn::ncm::PatchDeltaHeader".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x8
 +
| SourcePatchId
 +
|-
 +
| 0x8
 +
| 8
 +
| DestinationPatchId
 +
|-
 +
| 0x10
 +
| 0x4
 +
| SourceVersion
 +
|-
 +
| 0x14
 +
| 0x4
 +
| DestinationVersion
 +
|-
 +
| 0x18
 +
| 0x2
 +
| FragmentSetCount
 +
|-
 +
| 0x1A
 +
| 0x6
 +
| Reserved
 +
|-
 +
| 0x20
 +
| 0x2
 +
| ContentInfoCount
 +
|-
 +
| 0x22
 +
| 0x6
 +
| Reserved
 +
|}
 +
 
 +
== FragmentSet ==
 +
This is "nn::ncm::FragmentSet".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x10
 +
| SourceContentId
 +
|-
 +
| 0x10
 +
| 0x10
 +
| DestinationContentId
 +
|-
 +
| 0x20
 +
| 0x6
 +
| SourceSize
 +
|-
 +
| 0x26
 +
| 0x6
 +
| DestinationSize
 +
|-
 +
| 0x2C
 +
| 0x2
 +
| FragmentIndicatorCount
 +
|-
 +
| 0x2E
 +
| 0x1
 +
| FragmentTargetContentType (0=Meta, 1=Program, 2=Data, 3=Control, 4=[[Internet_Browser|HtmlDocument]], 5=[[Internet_Browser|LegalInformation]], 6=[[NCA_Format|DeltaFragment]])
 +
|-
 +
| 0x2F
 +
| 0x1
 +
| UpdateType (0=ApplyAsDelta, 1=Overwrite, 2=Create)
 +
|-
 +
| 0x30
 +
| 0x4
 +
| Reserved
 +
|}
 +
 
 +
== FragmentIndicator ==
 +
This is "nn::ncm::FragmentIndicator".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x2
 +
| ContentInfoIndex
 +
|-
 +
| 0x2
 +
| 0x2
 +
| FragmentIndex
 +
|}
 +
 
 +
= DeltaMetaExtendedData =
 +
This is "nn::ncm::DeltaMetaExtendedData".
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x8
 +
| SourcePatchId
 +
|-
 +
| 0x8
 +
| 0x8
 +
| DestinationPatchId
 +
|-
 +
| 0x10
 +
| 0x4
 +
| SourceVersion
 +
|-
 +
| 0x14
 +
| 0x4
 +
| DestinationVersion
 +
|-
 +
| 0x18
 +
| 0x2
 +
| FragmentSetCount
 +
|-
 +
| 0x1A
 +
| 0x6
 +
| Reserved
 +
|-
 +
| 0x20
 +
| 0x34 * FragmentSetCount
 +
| [[#FragmentSet|FragmentSet]]
 +
|-
 +
| Variable
 +
| 0x4 * FragmentIndicatorCount (from [[#FragmentSet|FragmentSet]])
 +
| [[#FragmentIndicator|FragmentIndicator]]
 +
|}
 +
 
 +
= Digest =
 +
Always found at the end of the file.
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x20
 +
| Digest
 
|}
 
|}
Retrieved from "https://switchbrew.org/wiki/Special:MobileDiff/1040...11993"

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