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Line 1: − There's at least 9 different filenames used for ".cnmt":+ − * "Application_{lower-case hex titleID}.cnmt"+ − * "Patch_{lower-case hex titleID}.cnmt"+ − * "AddOnContent_{lower-case hex titleID}.cnmt"+ − * "SystemUpdate_{hex titleID}.cnmt" − * "SystemData_{lower-case hex titleID}.cnmt" − * "SystemProgram_{lower-case hex titleID}.cnmt" − * "BootImagePackage_{lower-case hex titleID}.cnmt" − * "BootImagePackageSafe_{lower-case hex titleID}.cnmt" − * "Delta_{lower-case hex titleID}.cnmt" − == Header == Line 21:
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Line 305: − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + − + − + − + − + − + − + + Line 255:
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Line 440: − + − |- − | 0xC − | 0x1 − | [[NCM_services#Title_Types|Meta Type]] − |- − | 0xD − | 0x1 − | Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless) − |- − | 0xE − | 0x2 − | Unused Line 340:
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Line 584: − + − + − + + Line 489:
Line 602: − + − + − + − + − + − + − + − + − + − + − + − == Digest ==+ − − Always found at the end of the file. − Line 534:
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no edit summary
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 metadata file that ends in <code>".cnmt{.nca}"</code> or <code>"meta0.ncd"</code>. This seems to replace the TMD format.
The official name for CNMT is "PackagedContentMeta".
= PackagedContentMetaHeader =
This is "nn::ncm::PackagedContentMetaHeader".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x8
| 0x8
| Title ID
| Id
|-
|-
| 0x8
| 0x8
| 0xC
| 0xC
| 0x1
| 0x1
| [[NCM_services#Title_Types|Meta Type]]
| [[NCM_services#ContentMetaType|ContentMetaType]]
|-
|-
| 0xD
| 0xD
| 0x1
| 0x1
| Unused
| [17.0.0+] [[NCM_services#ContentMetaPlatform|ContentMetaPlatform]] ([1.0.0-16.1.0] Reserved)
|-
|-
| 0xE
| 0xE
| 0x2
| 0x2
| Extended Header Size
| ExtendedHeaderSize
|-
|-
| 0x10
| 0x10
| 0x2
| 0x2
| Content Count
| ContentCount
|-
|-
| 0x12
| 0x12
| 0x2
| 0x2
| Content Meta Count
| ContentMetaCount
|-
|-
| 0x14
| 0x14
| 0x1
| 0x1
| Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless)
| ContentMetaAttributes (0=None, 1=IncludesExFatDriver, 2=Rebootless, 4=Compacted)
|-
|-
| 0x15
| 0x15
| 0x3
| 0x3
| Unused
| Reserved
|-
|-
| 0x18
| 0x18
| 0x4
| 0x4
| Required Download System Version
| RequiredDownloadSystemVersion
|-
|-
| 0x1C
| 0x1C
| 0x4
| 0x4
| Unused
| Reserved
|}
|}
== SystemUpdate Extended Header ==
= SystemUpdateMetaExtendedHeader =
This is "nn::ncm::SystemUpdateMetaExtendedHeader".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x4
| 0x4
| Extended Data Size
| ExtendedDataSize
|}
|}
== Application Extended Header ==
= ApplicationMetaExtendedHeader =
This is "nn::ncm::ApplicationMetaExtendedHeader".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x8
| 0x8
| Patch ID
| PatchId
|-
|-
| 0x8
| 0x8
| 0x4
| 0x4
| Required System Version
| RequiredSystemVersion
|-
|-
| 0xC
| 0xC
| 0x4
| 0x4
| Unused
| RequiredApplicationVersion
|}
|}
== Patch Extended Header ==
= PatchMetaExtendedHeader =
This is "nn::ncm::PatchMetaExtendedHeader".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x8
| 0x8
| Application ID
| ApplicationId
|-
|-
| 0x8
| 0x8
| 0x4
| 0x4
| Required System Version
| RequiredSystemVersion
|-
|-
| 0xC
| 0xC
| 0x4
| 0x4
| Extended Data Size
| 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
|-
|-
| 0x10
| 0x10
| 0x8
| 0x8
| Unused
| [15.0.0+] DataPatchId
|}
|}
== AddOnContent Extended Header ==
= DeltaMetaExtendedHeader =
This is "nn::ncm::DeltaMetaExtendedHeader".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x8
| 0x8
| Application ID
| ApplicationId
|-
|-
| 0x8
| 0x8
| 0x4
| 0x4
| Required Application Version
| ExtendedDataSize
|-
|-
| 0xC
| 0xC
| 0x4
| 0x4
| Unused
| Reserved
|}
|}
== Delta Extended Header ==
= DataPatchMetaExtendedHeader =
This is "nn::ncm::DataPatchMetaExtendedHeader".
This was added with [15.0.0+].
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x8
| 0x8
| Application ID
| DataId
|-
|-
| 0x8
| 0x8
| 0x8
| ApplicationId
|-
| 0x10
| 0x4
| 0x4
| Extended Data Size
| RequiredApplicationVersion
|-
|-
| 0xC
| 0x14
| 0x4
| 0x4
| Unused
| ExtendedDataSize
|-
| 0x18
| 0x8
| Reserved
|}
|}
== Content Records ==
= PackagedContentInfo =
This is "nn::ncm::PackagedContentInfo".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x20
| 0x20
| Hash
| Hash (SHA256 of the referenced content)
|-
|-
| 0x20
| 0x20
| 0x10
| 0x10
| Content ID
| ContentId
|-
|-
| 0x30
| 0x30
| 0x6
| [15.0.0+] 0x5 ([1.0.0-14.1.2] 0x6)
| Size
| Size
|-
| 0x35
| 0x1
| [15.0.0+] ContentAttributes
|-
|-
| 0x36
| 0x36
| 0x1
| 0x1
| Title Type (0=Meta, 1=Program, 2=Data, 3=Control, 4=[[Internet_Browser|HtmlDocument]], 5=[[Internet_Browser|LegalInformation]], 6=[[NCA_Format|DeltaFragment]])
| ContentType (0=Meta, 1=Program, 2=Data, 3=Control, 4=[[Internet_Browser|HtmlDocument]], 5=[[Internet_Browser|LegalInformation]], 6=[[NCA_Format|DeltaFragment]])
|-
|-
| 0x37
| 0x37
| 0x1
| 0x1
| Id Offset
| IdOffset
|}
|}
== Content Meta Records ==
= ContentMetaInfo =
This is "nn::ncm::ContentMetaInfo".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x8
| 0x8
| Title ID
| Id
|-
|-
| 0x8
| 0x8
| 0xC
| 0xC
| 0x1
| 0x1
| [[NCM_services#Title_Types|Meta Type]]
| [[NCM_services#ContentMetaType|ContentMetaType]]
|-
|-
| 0xD
| 0xD
| 0x1
| 0x1
| Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless)
| ContentMetaAttributes (0=None, 1=IncludesExFatDriver, 2=Rebootless, 4=Compacted)
|-
|-
| 0xE
| 0xE
| 0x2
| 0x2
| Unused
| Reserved
|}
|}
This is used for SystemUpdate, see here: [[NCM_services#ReadEntryMetaRecords]].
This is used for SystemUpdate, see here: [[NCM_services#ReadEntryMetaRecords]].
== SystemUpdate Extended Data ==
= 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"
{| class="wikitable" border="1"
|-
|-
| 0x4
| 0x4
| 0x4
| 0x4
| Variation Count
| VariationCount
|-
|-
| 0x8
| 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
| 0x4
| Firmware Variation
| MetaCount
|-
|-
| 0xC
| 0x8
| 0x1C * Variation Count
| 0x18
| Unused
| Reserved
|}
|}
== Patch Extended Data ==
= PatchMetaExtendedData =
This is "nn::ncm::PatchMetaExtendedData".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x4
| 0x4
| History Count
| PatchHistoryHeaderCount
|-
|-
| 0x4
| 0x4
| 0x4
| 0x4
| Delta History Count
| PatchDeltaHistoryCount
|-
|-
| 0x8
| 0x8
| 0x4
| 0x4
| Delta Count
| PatchDeltaHeaderCount
|-
|-
| 0xC
| 0xC
| 0x4
| 0x4
| Fragment Set Count
| FragmentSetCount
|-
|-
| 0x10
| 0x10
| 0x4
| 0x4
| History Content Count
| PatchHistoryContentInfoCount
|-
|-
| 0x14
| 0x14
| 0x4
| 0x4
| Delta Content Count
| PatchDeltaPackagedContentInfoCount
|-
|-
| 0x18
| 0x18
| 0x4
| 0x4
| Unused
| Reserved
|-
|-
| 0x1C
| 0x1C
| 0x38 * History Count
| 0x38 * PatchHistoryHeaderCount
| [[CNMT#History_Header|History Headers]]
| [[#PatchHistoryHeader|PatchHistoryHeader]]
|-
|-
|
| Variable
| 0x28 * Delta History Count
| 0x28 * PatchDeltaHistoryCount
| [[CNMT#Delta_History|Delta Histories]]
| [[#PatchDeltaHistory|PatchDeltaHistory]]
|-
|-
|
| Variable
| 0x28 * Delta Count
| 0x28 * PatchDeltaHeaderCount
| [[CNMT#Delta_Header|Delta Headers]]
| [[#PatchDeltaHeader|PatchDeltaHeader]]
|-
|-
|
| Variable
| 0x34 * Fragment Set Count
| 0x34 * FragmentSetCount
| [[CNMT#Fragment_Set|Fragment Sets]]
| [[#FragmentSet|FragmentSet]]
|-
|-
|
| Variable
| 0x18 * History Content Count
| 0x18 * PatchHistoryContentInfoCount
| [[CNMT#Content_Records|History Content Records (Content Records without the Hash entry)]]
| [[#PackagedContentInfo|PatchHistoryContentInfo]] ([[#PackagedContentInfo|PackagedContentInfo]] without the Hash entry)
|-
|-
|
| Variable
| 0x38 * Delta Content Count
| 0x38 * PatchDeltaPackagedContentInfoCount
| [[CNMT#Content_Records|Delta Content Records]]
| [[#PackagedContentInfo|PatchDeltaPackagedContentInfo]]
|-
|-
|
| Variable
| 0x4 * Fragment Indicator Count (Fragment Set)
| 0x4 * FragmentIndicatorCount (from [[#FragmentSet|FragmentSet]])
| [[CNMT#Fragment_Indicator|Fragment Indicators]]
| [[#FragmentIndicator|FragmentIndicator]]
|}
|}
=== History Header ===
== PatchHistoryHeader ==
This is "nn::ncm::PatchHistoryHeader".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x10
| 0x10
| [[CNMT#Content_Meta_Records|Content Meta Record]]
| ContentMetaKey
|-
|-
| 0x10
| 0x10
| 0x30
| 0x30
| 0x2
| 0x2
| Content Info Count
| ContentInfoCount
|-
|-
| 0x32
| 0x32
| 0x6
| 0x6
| Unused
| Reserved
|}
|}
=== Delta History ===
== PatchDeltaHistory ==
This is "nn::ncm::PatchDeltaHistory".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x8
| 0x8
| Source Patch ID
| SourcePatchId
|-
|-
| 0x8
| 0x8
| 0x8
| 0x8
| Destination Patch ID
| DestinationPatchId
|-
|-
| 0x10
| 0x10
| 0x4
| 0x4
| Source Version
| SourceVersion
|-
|-
| 0x14
| 0x14
| 0x4
| 0x4
| Destination Version
| DestinationVersion
|-
|-
| 0x18
| 0x18
| 0x8
| 0x8
| Download Size
| DownloadSize
|-
|-
| 0x20
| 0x20
| 0x8
| 0x8
| Unused
| Reserved
|}
|}
=== Delta Header ===
== PatchDeltaHeader ==
This is "nn::ncm::PatchDeltaHeader".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x8
| 0x8
| Source Patch ID
| SourcePatchId
|-
|-
| 0x8
| 0x8
| 8
| 8
| Destination Patch ID
| DestinationPatchId
|-
|-
| 0x10
| 0x10
| 0x4
| 0x4
| Source Version
| SourceVersion
|-
|-
| 0x14
| 0x14
| 0x4
| 0x4
| Destination Version
| DestinationVersion
|-
|-
| 0x18
| 0x18
| 0x2
| 0x2
| Fragment Set Count
| FragmentSetCount
|-
|-
| 0x1A
| 0x1A
| 0x6
| 0x6
| Unused
| Reserved
|-
|-
| 0x20
| 0x20
| 0x2
| 0x2
| Content Info Count
| ContentInfoCount
|-
|-
| 0x22
| 0x22
| 0x6
| 0x6
| Unused
| Reserved
|}
|}
=== Fragment Set ===
== FragmentSet ==
This is "nn::ncm::FragmentSet".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x10
| 0x10
| Source Content ID
| SourceContentId
|-
|-
| 0x10
| 0x10
| 0x10
| 0x10
| Destination Content ID
| DestinationContentId
|-
|-
| 0x20
| 0x20
| 0x6
| 0x6
| Source Size
| SourceSize
|-
|-
| 0x26
| 0x26
| 0x6
| 0x6
| Destination Size
| DestinationSize
|-
|-
| 0x2C
| 0x2C
| 0x2
| 0x2
| Fragment Indicator Count
| FragmentIndicatorCount
|-
|-
| 0x2E
| 0x2E
| 0x1
| 0x1
| [[NCM_services#Title_Types|Meta Type]]
| FragmentTargetContentType (0=Meta, 1=Program, 2=Data, 3=Control, 4=[[Internet_Browser|HtmlDocument]], 5=[[Internet_Browser|LegalInformation]], 6=[[NCA_Format|DeltaFragment]])
|-
|-
| 0x2F
| 0x2F
| 0x1
| 0x1
| Update Type (0=ApplyAsDelta, 1=Overwrite, 2=Create)
| UpdateType (0=ApplyAsDelta, 1=Overwrite, 2=Create)
|-
|-
| 0x30
| 0x30
| 0x4
| 0x4
| Unused
| Reserved
|}
|}
=== Fragment Indicator ===
== FragmentIndicator ==
This is "nn::ncm::FragmentIndicator".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x2
| 0x2
| Content Info Index
| ContentInfoIndex
|-
|-
| 0x2
| 0x2
| 0x2
| 0x2
| Fragment Index
| FragmentIndex
|}
|}
== Delta Extended Data ==
= DeltaMetaExtendedData =
This is "nn::ncm::DeltaMetaExtendedData".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x8
| 0x8
| Source Patch ID
| SourcePatchId
|-
|-
| 0x8
| 0x8
| 0x8
| 0x8
| Destination Patch ID
| DestinationPatchId
|-
|-
| 0x10
| 0x10
| 0x4
| 0x4
| Source Version
| SourceVersion
|-
|-
| 0x14
| 0x14
| 0x4
| 0x4
| Destination Version
| DestinationVersion
|-
|-
| 0x18
| 0x18
| 0x2
| 0x2
| Fragment Set Count
| FragmentSetCount
|-
|-
| 0x1A
| 0x1A
| 0x6
| 0x6
| Unused
| Reserved
|-
|-
| 0x20
| 0x20
| 0x34 * Fragment Set Count
| 0x34 * FragmentSetCount
| [[CNMT#Fragment_Set|Fragment Sets]]
| [[#FragmentSet|FragmentSet]]
|-
|-
|
| Variable
| 0x4 * Fragment Indicator Count (Fragment Set)
| 0x4 * FragmentIndicatorCount (from [[#FragmentSet|FragmentSet]])
| [[CNMT#Fragment_Indicator|Fragment Indicators]]
| [[#FragmentIndicator|FragmentIndicator]]
|}
|}
= Digest =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| Digest
| Digest
|}
|}
This is a SHA-256 hash always found at the end of the file. The hash is calculated over the CNMT file's contents, but this is only done for the development version of the file which results in its production version counterpart sharing the same hash value.