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no edit summary
The official name for CNMT is "PackagedContentMeta".
The official name for CNMT is "PackagedContentMeta".
== Header ==
= PackagedContentMetaHeader =
This is "nn::ncm::PackagedContentMetaHeader".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x8
| 0x8
| ID
| Id
|-
|-
| 0x8
| 0x8
| 0xC
| 0xC
| 0x1
| 0x1
| [[NCM_services#ContentMetaType|Content Meta Type]]
| [[NCM_services#ContentMetaType|ContentMetaType]]
|-
|-
| 0xD
| 0xD
| 0x1
| 0x1
| Reserved
| [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
| Content Meta Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless)
| ContentMetaAttributes (0=None, 1=IncludesExFatDriver, 2=Rebootless, 4=Compacted)
|-
|-
| 0x15
| 0x15
| 0x18
| 0x18
| 0x4
| 0x4
| Required Download System Version
| RequiredDownloadSystemVersion
|-
|-
| 0x1C
| 0x1C
|}
|}
== 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
| Required Application Version
| 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
| 0x10
|}
|}
== AddOnContent Extended Header ==
= AddOnContentMetaExtendedHeader =
This is "nn::ncm::AddOnContentMetaExtendedHeader".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x8
| 0x8
| Application ID
| ApplicationId
|-
|-
| 0x8
| 0x8
| 0x4
| 0x4
| Required Application Version
| RequiredApplicationVersion
|-
| 0xC
| 0x1
| [15.0.0+] ContentAccessibilities ([1.0.0-14.1.2] Reserved)
|-
| 0xD
| 0x3
| Reserved
|-
| 0x10
| 0x8
| [15.0.0+] DataPatchId
|}
= DeltaMetaExtendedHeader =
This is "nn::ncm::DeltaMetaExtendedHeader".
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x8
| ApplicationId
|-
| 0x8
| 0x4
| ExtendedDataSize
|-
|-
| 0xC
| 0xC
|}
|}
== 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
| ExtendedDataSize
|-
| 0x18
| 0x8
| Reserved
| Reserved
|}
|}
== Packaged Content Info ==
= 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
| Content 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 Info ==
= ContentMetaInfo =
This is "nn::ncm::ContentMetaInfo".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x0
| 0x0
| 0x8
| 0x8
| ID
| Id
|-
|-
| 0x8
| 0x8
| 0xC
| 0xC
| 0x1
| 0x1
| [[NCM_services#Title_Types|Content Meta Type]]
| [[NCM_services#ContentMetaType|ContentMetaType]]
|-
|-
| 0xD
| 0xD
| 0x1
| 0x1
| Content Meta Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless)
| ContentMetaAttributes (0=None, 1=IncludesExFatDriver, 2=Rebootless, 4=Compacted)
|-
|-
| 0xE
| 0xE
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:
If the Version field is 1, the format is:
| 0x4
| 0x4
| 0x4
| 0x4
| Variation Count
| VariationCount
|-
|-
| 0x8
| 0x8
| 0x20 * Variation Count
| 0x20 * VariationCount
| [[CNMT#Firmware_Variation_Info_(Version_1)|Firmware Variation Info (Version 1)]]
| [[#FirmwareVariationInfo|FirmwareVariationInfo]] (Version 1)
|}
|}
| 0x4
| 0x4
| 0x4
| 0x4
| Variation Count
| VariationCount
|-
|-
| 0x8
| 0x8
| 0x4 * Variation Count
| 0x4 * VariationCount
| Firmware Variation ID
| FirmwareVariationId
|-
|-
|
| Variable
| 0x20 * Variation Count
| 0x20 * VariationCount
| [[CNMT#Firmware_Variation_Info_(Version_2)|Firmware Variation Info (Version 2)]]
| [[#FirmwareVariationInfo|FirmwareVariationInfo]] (Version 2)
|-
|-
|
| Variable
| 0x10 * Meta Count (From [[CNMT#Firmware_Variation_Info_(Version_2)|Firmware Variation Info (Version 2)]])
| 0x10 * MetaCount (from [[#FirmwareVariationInfo|FirmwareVariationInfo]] (Version 2))
| [[CNMT#Content_Meta_Info|Content Meta Info]] (If Refer To Base is False)
| [[#ContentMetaInfo|ContentMetaInfo]] (if ReferToBase is False)
|}
|}
=== Firmware Variation Info (Version 1) ===
== FirmwareVariationInfo ==
This is "FirmwareVariationInfo ".
If the Version field is 1, the format is:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x4
| 0x4
| Firmware Variation ID
| FirmwareVariationId
|-
|-
| 0x4
| 0x4
|}
|}
If the Version field is 2, the format is:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x1
| 0x1
| Refer To Base (0=False, 1=True)
| ReferToBase (0=False, 1=True)
|-
|-
| 0x1
| 0x1
| 0x4
| 0x4
| 0x4
| 0x4
| Meta Count
| MetaCount
|-
|-
| 0x8
| 0x8
|}
|}
== 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
|-
|-
| 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#Packaged_Content_Info|History Content Info]] (Packaged Content Info without the Hash entry)
| [[#PackagedContentInfo|PatchHistoryContentInfo]] ([[#PackagedContentInfo|PackagedContentInfo]] without the Hash entry)
|-
|-
|
| Variable
| 0x38 * Delta Content Count
| 0x38 * PatchDeltaPackagedContentInfoCount
| [[CNMT#Packaged_Content_Info|Delta Packaged Content Info]]
| [[#PackagedContentInfo|PatchDeltaPackagedContentInfo]]
|-
|-
|
| Variable
| 0x4 * Fragment Indicator Count (From [[CNMT#Fragment_Set|Fragment Sets]])
| 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
| Content Meta Key (Slightly different Content Meta Info)
| ContentMetaKey
|-
|-
| 0x10
| 0x10
| 0x30
| 0x30
| 0x2
| 0x2
| Content Info Count
| ContentInfoCount
|-
|-
| 0x32
| 0x32
|}
|}
=== 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
|}
|}
=== 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
| 0x20
| 0x20
| 0x2
| 0x2
| Content Info Count
| ContentInfoCount
|-
|-
| 0x22
| 0x22
|}
|}
=== 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
| Fragment Target Content Type (0=Meta, 1=Program, 2=Data, 3=Control, 4=[[Internet_Browser|HtmlDocument]], 5=[[Internet_Browser|LegalInformation]], 6=[[NCA_Format|DeltaFragment]])
| 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
|}
|}
=== 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
|-
|-
| 0x20
| 0x20
| 0x34 * Fragment Set Count
| 0x34 * FragmentSetCount
| [[CNMT#Fragment_Set|Fragment Sets]]
| [[#FragmentSet|FragmentSet]]
|-
|-
|
| Variable
| 0x4 * Fragment Indicator Count (From [[CNMT#Fragment_Set|Fragment Sets]])
| 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.