Nintendo Switch Brew

CNMT: Difference between revisions

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Hiccup (talk | contribs)
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Liam (talk | contribs)
23 edits
Fix SystemUpdate Extended Data, change some names
Line 1: Line 1:
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.


There's at least 9 different filenames used for ".cnmt":
The official name for CNMT is "PackagedContentMeta".
* "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 ==
== Header ==
Line 21: Line 12:
| 0x0
| 0x0
| 0x8
| 0x8
| Title ID
| Program ID
|-
|-
| 0x8
| 0x8
| 0x4
| 0x4
| Title Version
| Version
|-
|-
| 0xC
| 0xC
| 0x1
| 0x1
| [[NCM_services#Title_Types|Meta Type]]
| [[NCM_services#Title_Types|Content Meta Type]]
|-
|-
| 0xD
| 0xD
| 0x1
| 0x1
| Unused
| Reserved
|-
|-
| 0xE
| 0xE
Line 49: Line 40:
| 0x14
| 0x14
| 0x1
| 0x1
| Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless)
| Content Meta Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless)
|-
|-
| 0x15
| 0x15
| 0x3
| 0x3
| Unused
| Reserved
|-
|-
| 0x18
| 0x18
Line 61: Line 52:
| 0x1C
| 0x1C
| 0x4
| 0x4
| Unused
| Reserved
|}
|}


Line 93: Line 84:
| 0xC
| 0xC
| 0x4
| 0x4
| Unused
| Required Application Version
|}
|}


Line 117: Line 108:
| 0x10
| 0x10
| 0x8
| 0x8
| Unused
| Reserved
|}
|}


Line 137: Line 128:
| 0xC
| 0xC
| 0x4
| 0x4
| Unused
| Reserved
|}
|}


Line 157: Line 148:
| 0xC
| 0xC
| 0x4
| 0x4
| Unused
| Reserved
|}
|}


== Content Records ==
== Packaged Content Info ==


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 186: Line 177:
| 0x37
| 0x37
| 0x1
| 0x1
| Id Offset
| ID Offset
|}
|}


== Content Meta Records ==
== Content Meta Info ==


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 199: Line 190:
| 0x0
| 0x0
| 0x8
| 0x8
| Title ID
| Program ID
|-
|-
| 0x8
| 0x8
Line 207: Line 198:
| 0xC
| 0xC
| 0x1
| 0x1
| [[NCM_services#Title_Types|Meta Type]]
| [[NCM_services#Title_Types|Content Meta Type]]
|-
|-
| 0xD
| 0xD
| 0x1
| 0x1
| Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless)
| Content Meta Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless)
|-
|-
| 0xE
| 0xE
| 0x2
| 0x2
| Unused
| Reserved
|}
|}


Line 222: Line 213:
== SystemUpdate Extended Data ==
== SystemUpdate Extended Data ==


If the Version field is 1, the format is:
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x4
| Version
|-
| 0x4
| 0x4
| Variation Count
|-
| 0x8
| 0x20 * Variation Count
| [[CNMT#Firmware_Variation_Info_(Version_1)|Firmware Variation Info (Version 1)]]
|}
If the Version field is 2, the format is:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
Line 237: Line 249:
|-
|-
| 0x8
| 0x8
| 0x4 * Variation Count
| Firmware Variation ID
|-
|
| 0x20 * Variation Count
| [[CNMT#Firmware_Variation_Info_(Version_2)|Firmware Variation Info (Version 2)]]
|-
|
| 0x10 * Meta Count (From [[CNMT#Firmware_Variation_Info_(Version_2)|Firmware Variation Info (Version 2)]])
| [[CNMT#Content_Meta_Info|Content Meta Info]] (If Refer To Base is True)
|}
=== Firmware Variation Info (Version 1) ===
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x4
| 0x4
| Firmware Variation
| Firmware Variation ID
|-  
|-
| 0xC
| 0x4
| 0x1C * Variation Count
| 0x1C
| Unused
| Reserved
|}
 
=== Firmware Variation Info (Version 2) ===
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x1
| Refer To Base (0=False, 1=True)
|-
| 0x1
| 0x3
| Reserved
|-
| 0x4
| 0x4
| Meta Count
|-
| 0x8
| 0x18
| Reserved
|}
|}


Line 279: Line 337:
| 0x18
| 0x18
| 0x4
| 0x4
| Unused
| Reserved
|-
|-
| 0x1C
| 0x1C
Line 299: Line 357:
|  
|  
| 0x18 * History Content Count
| 0x18 * History Content Count
| [[CNMT#Content_Records|History Content Records (Content Records without the Hash entry)]]
| [[CNMT#Packaged_Content_Info|History Content Info]] (Packaged Content Info without the Hash entry)
|-
|-
|  
|  
| 0x38 * Delta Content Count
| 0x38 * Delta Content Count
| [[CNMT#Content_Records|Delta Content Records]]
| [[CNMT#Packaged_Content_Info|Delta Packaged Content Info]]
|-
|-
|
|
| 0x4 * Fragment Indicator Count (Fragment Set)
| 0x4 * Fragment Indicator Count (From [[CNMT#Fragment_Set|Fragment Sets]])
| [[CNMT#Fragment_Indicator|Fragment Indicators]]
| [[CNMT#Fragment_Indicator|Fragment Indicators]]
|}
|}
Line 320: Line 378:
| 0x0
| 0x0
| 0x10
| 0x10
| [[CNMT#Content_Meta_Records|Content Meta Record]]
| Content Meta Key (Slightly different Content Meta Info)
|-
| 0xC
| 0x1
| [[NCM_services#Title_Types|Meta Type]]
|-
| 0xD
| 0x1
| Attributes (0=None, 1=IncludesExFatDriver, 2=Rebootless)
|-
| 0xE
| 0x2
| Unused
|-
|-
| 0x10
| 0x10
Line 344: Line 390:
| 0x32
| 0x32
| 0x6
| 0x6
| Unused
| Reserved
|}
|}


Line 377: Line 423:
| 0x20
| 0x20
| 0x8
| 0x8
| Unused
| Reserved
|}
|}


Line 410: Line 456:
| 0x1A
| 0x1A
| 0x6
| 0x6
| Unused
| Reserved
|-
|-
| 0x20
| 0x20
Line 418: Line 464:
| 0x22
| 0x22
| 0x6
| 0x6
| Unused
| Reserved
|}
|}


Line 451: Line 497:
| 0x2E
| 0x2E
| 0x1
| 0x1
| Content Type (0=Meta, 1=Program, 2=Data, 3=Control, 4=[[Internet_Browser|HtmlDocument]], 5=[[Internet_Browser|LegalInformation]], 6=[[NCA_Format|DeltaFragment]])
| Fragment Target Content Type (0=Meta, 1=Program, 2=Data, 3=Control, 4=[[Internet_Browser|HtmlDocument]], 5=[[Internet_Browser|LegalInformation]], 6=[[NCA_Format|DeltaFragment]])
|-
|-
| 0x2F
| 0x2F
Line 459: Line 505:
| 0x30
| 0x30
| 0x4
| 0x4
| Unused
| Reserved
|}
|}


Line 509: Line 555:
| 0x1A
| 0x1A
| 0x6
| 0x6
| Unused
| Reserved
|-
|-
| 0x20
| 0x20
Line 516: Line 562:
|-
|-
|
|
| 0x4 * Fragment Indicator Count (Fragment Set)
| 0x4 * Fragment Indicator Count (From [[CNMT#Fragment_Set|Fragment Sets]])
| [[CNMT#Fragment_Indicator|Fragment Indicators]]
| [[CNMT#Fragment_Indicator|Fragment Indicators]]
|}
|}
Retrieved from "https://switchbrew.org/wiki/CNMT"