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NCM contains services for internal file path and content management.
= lr =
This is "nn::lr::ILocationResolverManager".
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#OpenLocationResolver|OpenLocationResolver]]
|-
| 1 || [[#OpenRegisteredLocationResolver|OpenRegisteredLocationResolver]]
|-
| 2 || [[#RefreshLocationResolver|RefreshLocationResolver]]
|-
| 3 || [2.0.0+] [[#OpenAddOnContentLocationResolver|OpenAddOnContentLocationResolver]]
|-
| 4 || [15.0.0+] [[#SetEnabled|SetEnabled]]
|}
The only sysmodules which use this service are [[Filesystem_services|FS]], [[Loader_services|Loader]], and [[NS_Services|NS]]. [[boot2]] has access but doesn't use it.
== OpenLocationResolver ==
Takes an input [[#StorageId]]. Returns an [[#ILocationResolver]].
== OpenRegisteredLocationResolver ==
No input. Returns an [[#IRegisteredLocationResolver]].
== RefreshLocationResolver ==
Takes an input [[#StorageId]]. No output.
== OpenAddOnContentLocationResolver ==
No input. Returns an [[#IAddOnContentLocationResolver]].
== SetEnabled ==
Unofficial name.
Takes a type-0x5 input buffer containing an array of [[#StorageId]]. No output.
== ILocationResolver ==
This is "nn::lr::ILocationResolver".
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#ResolveProgramPath|ResolveProgramPath]]
|-
| 1 || [[#RedirectProgramPath|RedirectProgramPath]]
|-
| 2 || [[#ResolveApplicationControlPath|ResolveApplicationControlPath]]
|-
| 3 || [[#ResolveApplicationHtmlDocumentPath|ResolveApplicationHtmlDocumentPath]]
|-
| 4 || [[#ResolveDataPath|ResolveDataPath]]
|-
| 5 || [[#RedirectApplicationControlPath|RedirectApplicationControlPath]]
|-
| 6 || [[#RedirectApplicationHtmlDocumentPath|RedirectApplicationHtmlDocumentPath]]
|-
| 7 || [[#ResolveApplicationLegalInformationPath|ResolveApplicationLegalInformationPath]]
|-
| 8 || [[#RedirectApplicationLegalInformationPath|RedirectApplicationLegalInformationPath]]
|-
| 9 || [[#Refresh|Refresh]]
|-
| 10 || [5.0.0+] [[#RedirectApplicationProgramPath|RedirectApplicationProgramPath]]
|-
| 11 || [5.0.0+] [[#ClearApplicationRedirection|ClearApplicationRedirection]]
|-
| 12 || [5.0.0+] [[#EraseProgramRedirection|EraseProgramRedirection]]
|-
| 13 || [5.0.0+] [[#EraseApplicationControlRedirection|EraseApplicationControlRedirection]]
|-
| 14 || [5.0.0+] [[#EraseApplicationHtmlDocumentRedirection|EraseApplicationHtmlDocumentRedirection]]
|-
| 15 || [5.0.0+] [[#EraseApplicationLegalInformationRedirection|EraseApplicationLegalInformationRedirection]]
|-
| 16 || [7.0.0+] [[#ResolveProgramPathForDebug|ResolveProgramPathForDebug]]
|-
| 17 || [7.0.0+] [[#RedirectProgramPathForDebug|RedirectProgramPathForDebug]]
|-
| 18 || [7.0.0+] [[#RedirectApplicationProgramPathForDebug|RedirectApplicationProgramPathForDebug]]
|-
| 19 || [7.0.0+] [[#EraseProgramRedirectionForDebug|EraseProgramRedirectionForDebug]]
|-
| 20 || [15.0.0+] [[#Disable|Disable]]
|}
If the supplied [[#StorageId]] is 1 (Host), a different set of internal functions is used to handle these commands. In this more restricted set of functions, [[#ResolveApplicationControlPath|ResolveApplicationControlPath]] is stubbed and only returns error 0x608.
The Get* commands load the [[#Path|Path]] from linked-lists' [[#LocationListEntry|entries]] in memory using the input [[#ProgramId]]. When the command fails to find an entry for the specified [[#ProgramId]], 0x408 is returned for [[#ResolveProgramPath|ResolveProgramPath]] and 0xA08 is returned for the rest.
The Set* commands always return 0 and add a new entry to the list. If a matching entry is found, it's removed first.
=== ResolveProgramPath ===
Takes an input [[#ProgramId]] and a type-0x1A output buffer. No output.
=== RedirectProgramPath ===
Takes an input [[#ProgramId]] and a type-0x19 input buffer containing a [[#Path|Path]]. No output.
Inserts a new [[#LocationListEntry|entry]] with '''flag''' set to 0.
=== ResolveApplicationControlPath ===
Takes an input [[#ApplicationId]] and a type-0x1A output buffer. No output.
=== ResolveApplicationHtmlDocumentPath ===
Takes an input [[#ApplicationId]] and a type-0x1A output buffer. No output.
=== ResolveDataPath ===
Takes an input [[#DataId]] and a type-0x1A output buffer. No output.
=== RedirectApplicationControlPath ===
Takes an input [[#ApplicationId]] and a type-0x19 input buffer containing a [[#Path|Path]]. No output.
[9.0.0+] Now takes an additional 8-bytes of input.
Inserts a new [[#LocationListEntry|entry]] with '''flag''' set to 1.
=== RedirectApplicationHtmlDocumentPath ===
Takes an input [[#ApplicationId]] and a type-0x19 input buffer containing a [[#Path|Path]]. No output.
[9.0.0+] Now takes an additional 8-bytes of input.
Inserts a new [[#LocationListEntry|entry]] with '''flag''' set to 1.
=== ResolveApplicationLegalInformationPath ===
Takes an input [[#ApplicationId]] and a type-0x1A output buffer. No output.
=== RedirectApplicationLegalInformationPath ===
Takes an input [[#ApplicationId]] and a type-0x19 input buffer containing a [[#Path|Path]]. No output.
[9.0.0+] Now takes an additional 8-bytes of input.
Inserts a new [[#LocationListEntry|entry]] with '''flag''' set to 1.
=== Refresh ===
No input/output.
Frees all linked-lists' entries that have '''flag''' set to 0.
=== RedirectApplicationProgramPath ===
Same as [[#RedirectProgramPath|RedirectProgramPath]], but inserts a new [[#LocationListEntry|entry]] with '''flag''' set to 1.
[9.0.0+] Now takes an additional 8-bytes of input.
=== ClearApplicationRedirection ===
No input/output.
Frees all linked-lists' entries that have '''flag''' set to 1.
[9.0.0+] Now takes a type-0x5 input buffer.
=== EraseProgramRedirection ===
Takes an input [[#ProgramId]]. No output.
Removes the [[#LocationListEntry|entry]] that matches the input [[#ProgramId]].
=== EraseApplicationControlRedirection ===
Takes an input [[#ApplicationId]]. No output.
Removes the [[#LocationListEntry|entry]] that matches the input [[#ApplicationId]].
=== EraseApplicationHtmlDocumentRedirection ===
Takes an input [[#ApplicationId]]. No output.
Removes the [[#LocationListEntry|entry]] that matches the input [[#ApplicationId]].
=== EraseApplicationLegalInformationRedirection ===
Takes an input [[#ApplicationId]]. No output.
Removes the [[#LocationListEntry|entry]] that matches the input [[#ApplicationId]].
=== ResolveProgramPathForDebug ===
Unofficial name.
Same as [[#ResolveProgramPath|ResolveProgramPath]], but uses a redirection shim on top of the real program path.
[[NS_Services|NS]] uses this command if [[System_Settings#ns.application|ns.application!redirected_rom_storage_id_for_debug]] is different than 0x00.
=== RedirectProgramPathForDebug ===
Unofficial name.
Same as [[#RedirectProgramPath|RedirectProgramPath]], but uses a redirection shim on top of the real program path.
[[NS_Services|NS]] uses this command if [[System_Settings#ns.application|ns.application!redirected_rom_storage_id_for_debug]] is different than 0x00.
=== RedirectApplicationProgramPathForDebug ===
Unofficial name.
Same as [[#RedirectApplicationProgramPath|RedirectApplicationProgramPath]], but uses a redirection shim on top of the real program path.
[9.0.0+] Like [[#RedirectApplicationProgramPath]] this now takes an additional 8-bytes of input.
[[NS_Services|NS]] uses this command if [[System_Settings#ns.application|ns.application!redirected_rom_storage_id_for_debug]] is different than 0x00.
=== EraseProgramRedirectionForDebug ===
Unofficial name.
Same as [[#EraseProgramRedirection|EraseProgramRedirection]], but uses a redirection shim on top of the real program path.
[[NS_Services|NS]] uses this command if [[System_Settings#ns.application|ns.application!redirected_rom_storage_id_for_debug]] is different than 0x00.
=== Disable ===
Unofficial name.
No input/output.
== IRegisteredLocationResolver ==
This is "nn::lr::IRegisteredLocationResolver".
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#ResolveProgramPath_2|ResolveProgramPath]]
|-
| 1 || [[#RegisterProgramPath|RegisterProgramPath]]
|-
| 2 || [[#UnregisterProgramPath|UnregisterProgramPath]]
|-
| 3 || [[#RedirectProgramPath_2|RedirectProgramPath]]
|-
| 4 || [2.0.0+] [[#ResolveHtmlDocumentPath|ResolveHtmlDocumentPath]]
|-
| 5 || [2.0.0+] [[#RegisterHtmlDocumentPath|RegisterHtmlDocumentPath]]
|-
| 6 || [2.0.0+] [[#UnregisterHtmlDocumentPath|UnregisterHtmlDocumentPath]]
|-
| 7 || [2.0.0+] [[#RedirectHtmlDocumentPath|RedirectHtmlDocumentPath]]
|-
| 8 || [7.0.0+] [[#Refresh_2|Refresh]]
|-
| 9 || [9.0.0+] [[#RefreshExcluding|RefreshExcluding]]
|}
This works like [[#ILocationResolver]], but only two types of NCA paths can be gotten/set. In addition, each type has a fallback path that can be set for a single [[#ProgramId]] at a time.
=== ResolveProgramPath ===
Takes an input [[#ProgramId]] and a type-0x1A output buffer. No output.
=== RegisterProgramPath ===
Takes an input [[#ProgramId]] and a type-0x19 input buffer containing a [[#Path|Path]]. No output.
[9.0.0+] Now takes an additional 8-bytes of input.
=== UnregisterProgramPath ===
Takes an input [[#ProgramId]]. No output.
=== RedirectProgramPath ===
Takes an input [[#ProgramId]] and a type-0x19 input buffer containing a [[#Path|Path]]. No output.
[9.0.0+] Now takes an additional 8-bytes of input.
=== ResolveHtmlDocumentPath ===
Takes an input [[#ApplicationId]] and a type-0x1A output buffer. No output.
=== RegisterHtmlDocumentPath ===
Takes an input [[#ApplicationId]] and a type-0x19 input buffer containing a [[#Path|Path]]. No output.
[9.0.0+] Now takes an additional 8-bytes of input.
=== UnregisterHtmlDocumentPath ===
Takes an input [[#ApplicationId]]. No output.
=== RedirectHtmlDocumentPath ===
Takes an input [[#ApplicationId]] and a type-0x19 input buffer containing a [[#Path|Path]]. No output.
[9.0.0+] Now takes an additional 8-bytes of input.
=== Refresh ===
No input/output.
=== RefreshExcluding ===
Unofficial name.
Takes a type-0x5 input buffer containing an array of [[#ProgramId]]. No output.
== IAddOnContentLocationResolver ==
This is "nn::lr::IAddOnContentLocationResolver".
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#ResolveAddOnContentPath|ResolveAddOnContentPath]]
|-
| 1 || [[#RegisterAddOnContentStorage|RegisterAddOnContentStorage]]
|-
| 2 || [[#UnregisterAllAddOnContentPath|UnregisterAllAddOnContentPath]]
|-
| 3 || [9.0.0+] [[#RefreshApplicationAddOnContent|RefreshApplicationAddOnContent]]
|-
| 4 || [9.0.0+] [[#UnregisterApplicationAddOnContent|UnregisterApplicationAddOnContent]]
|-
| 5 || [15.0.0+] [[#GetRegisteredAddOnContentPaths|GetRegisteredAddOnContentPaths]]
|-
| 6 || [15.0.0+] [[#RegisterAddOnContentPath|RegisterAddOnContentPath]]
|-
| 7 || [15.0.0+] [[#RegisterAddOnContentPaths|RegisterAddOnContentPaths]]
|}
=== ResolveAddOnContentPath ===
Takes an input [[#DataId]] and a type-0x1A output buffer. No output.
=== RegisterAddOnContentStorage ===
Takes an input [[#StorageId]] and an input [[#DataId]]. No output.
[9.0.0+] Now takes an additional input [[#ApplicationId]] for the owner application.
=== UnregisterAllAddOnContentPath ===
No input/output.
=== RefreshApplicationAddOnContent ===
Unofficial name.
Takes a type-0x5 input buffer containing an array of [[#ApplicationId]]. No output.
Unregisters entries with IDs absent from the input buffer.
=== UnregisterApplicationAddOnContent ===
Unofficial name.
Takes an input [[#ApplicationId]]. No output.
Unregisters add on content entries for the input [[#ApplicationId]].
=== GetRegisteredAddOnContentPaths ===
Unofficial name.
Takes an input [[#DataId]] and two type-0x16 output buffers. No output.
=== RegisterAddOnContentPath ===
Unofficial name.
Takes an input [[#DataId]], an input [[#ApplicationId]] and a type-0x15 input buffer. No output.
=== RegisterAddOnContentPaths ===
Unofficial name.
Takes an input [[#DataId]], an input [[#ApplicationId]] and two type-0x15 input buffers. No output.
= ncm =
= ncm =
This is "nn::ncm::IContentManager".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name || Notes
! Cmd || Name
|-
|-
| 0 || || Takes a u8 as input.
| 0 || [[#CreateContentStorage|CreateContentStorage]]
|-
|-
| 1 || || Takes a u8 as input.
| 1 || [[#CreateContentMetaDatabase|CreateContentMetaDatabase]]
|-
|-
| 2 || || Takes a u8 as input.
| 2 || [[#VerifyContentStorage|VerifyContentStorage]]
|-
|-
| 3 || || Takes a u8 as input.
| 3 || [[#VerifyContentMetaDatabase|VerifyContentMetaDatabase]]
|-
|-
| 4 || GetContentStorage ||
| 4 || [[#OpenContentStorage|OpenContentStorage]]
|-
|-
| 5 || GetContentMetaDatabase ||
| 5 || [[#OpenContentMetaDatabase|OpenContentMetaDatabase]]
|-
|-
| 8 || || Takes a u8 as input.
| 6 || [1.0.0] [[#CloseContentStorageForcibly|CloseContentStorageForcibly]]
|-
|-
| 9 || || Takes a u8 as input.
| 7 || [1.0.0] [[#CloseContentMetaDatabaseForcibly|CloseContentMetaDatabaseForcibly]]
|-
|-
| 10 || || Takes a u8 as input.
| 8 || [[#CleanupContentMetaDatabase|CleanupContentMetaDatabase]]
|-
|-
| 11 || || Takes a u8 as input.
| 9 || [2.0.0+] [[#ActivateContentStorage|ActivateContentStorage]]
|-
|-
| 12 || || Takes a u8 as input.
| 10 || [2.0.0+] [[#InactivateContentStorage|InactivateContentStorage]]
|-
| 11 || [2.0.0+] [[#ActivateContentMetaDatabase|ActivateContentMetaDatabase]]
|-
| 12 || [2.0.0+] [[#InactivateContentMetaDatabase|InactivateContentMetaDatabase]]
|-
| 13 || [9.0.0+] [[#InvalidateRightsIdCache|InvalidateRightsIdCache]]
|-
| 14 || [10.0.0+] [[#GetMemoryReport|GetMemoryReport]]
|-
| 15 || [16.0.0+] [[#ActivateFsContentStorage|ActivateFsContentStorage]]
|}
|}
== CreateContentStorage ==
Takes an input [[#StorageId]]. No output.
== CreateContentMetaDatabase ==
Takes an input [[#StorageId]]. No output.
== VerifyContentStorage ==
Takes an input [[#StorageId]]. No output.
== VerifyContentMetaDatabase ==
Takes an input [[#StorageId]]. No output.
== OpenContentStorage ==
Takes an input [[#StorageId]]. Returns an [[#IContentStorage]].
[2.0.0+] Only returns a storage if one has previously been opened globally via [[#CreateContentStorage|CreateContentStorage]].
== OpenContentMetaDatabase ==
Takes an input [[#StorageId]]. Returns an [[#IContentMetaDatabase]].
[2.0.0+] Only returns a storage if one has previously been opened globally via [[#CreateContentStorage|CreateContentStorage]].
== CloseContentStorageForcibly ==
Takes an input [[#StorageId]]. No output.
== CloseContentMetaDatabaseForcibly ==
Takes an input [[#StorageId]]. No output.
== CleanupContentMetaDatabase ==
Takes an input [[#StorageId]]. No output.
== ActivateContentStorage ==
Takes an input [[#StorageId]]. No output.
== InactivateContentStorage ==
Takes an input [[#StorageId]]. No output.
== ActivateContentMetaDatabase ==
Takes an input [[#StorageId]]. No output.
== InactivateContentMetaDatabase ==
Takes an input [[#StorageId]]. No output.
== InvalidateRightsIdCache ==
No input/output.
== GetMemoryReport ==
No input. Returns an output [[#MemoryReport]].
== ActivateFsContentStorage ==
Takes an input [[Filesystem_services#ContentStorageId|ContentStorageId]]. No output.
== IContentStorage ==
== IContentStorage ==
This is "nn::ncm::IContentStorage".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name || Notes
! Cmd || Name
|-
| 0 || [[#GeneratePlaceHolderId|GeneratePlaceHolderId]]
|-
| 1 || [[#CreatePlaceHolder|CreatePlaceHolder]]
|-
|-
| 0 || || Returns a 0x10-sized entry.
| 2 || [[#DeletePlaceHolder|DeletePlaceHolder]]
|-
|-
| 1 || || Takes two 0x10-sized entries, and a u64.
| 3 || [[#HasPlaceHolder|HasPlaceHolder]]
|-
|-
| 2 || || Takes a 0x10-sized entry.
| 4 || [[#WritePlaceHolder|WritePlaceHolder]]
|-
|-
| 3 || || Takes a 0x10-sized entry, returns a bool/u8.
| 5 || [[#Register|Register]]
|-
|-
| 4 || || Takes a 0x10-sized entry, a u64, and type-5 array.
| 6 || [[#Delete|Delete]]
|-
|-
| 5 || || Takes two 0x10-sized entries.
| 7 || [[#Has|Has]]
|-
|-
| 6 || || Takes a 0x10-sized entry.
| 8 || [[#GetPath|GetPath]]
|-
|-
| 7 || || Takes a 0x10-sized entry, returns a bool/u8.
| 9 || [[#GetPlaceHolderPath|GetPlaceHolderPath]]
|-
|-
| 8 || || Takes a type-0x1A string and a 0x10-sized entry.
| 10 || [[#CleanupAllPlaceHolder|CleanupAllPlaceHolder]]
|-
|-
| 9 || || Takes a type-0x1A string and a 0x10-sized entry.
| 11 || [[#ListPlaceHolder|ListPlaceHolder]]
|-
|-
| 10 || || Void.
| 12 || [[#GetContentCount|GetContentCount]]
|-
|-
| 11 || || Takes a type-6 buffer, each entry 0x10 bytes, and returns a u32.
| 13 || [[#ListContentId|ListContentId]]
|-
|-
| 12 || || Returns a u32.
| 14 || [[#GetSizeFromContentId|GetSizeFromContentId]]
|-
|-
| 13 || || Takes a type-6 buffer, each entry 0x10 bytes, and a u32, and returns a u32.
| 15 || [[#DisableForcibly|DisableForcibly]]
|-
|-
| 14 || || Takes a 0x10-sized entry, and returns a u64.
| 16 || [2.0.0+] [[#RevertToPlaceHolder|RevertToPlaceHolder]]
|-
|-
| 15 || || Void.
| 17 || [2.0.0+] [[#SetPlaceHolderSize|SetPlaceHolderSize]]
|-
|-
| 16 || || Takes three 0x10-sized entries.
| 18 || [2.0.0+] [[#ReadContentIdFile|ReadContentIdFile]]
|-
|-
| 17 || || Takes a 0x10-sized entry and a u64.
| 19 || [2.0.0+] [[#GetRightsIdFromPlaceHolderId|GetRightsIdFromPlaceHolderId]]
|-
|-
| 18 || || Takes a type-6 array, a 0x10-sized entry, and a u64.
| 20 || [2.0.0+] [[#GetRightsIdFromContentId|GetRightsIdFromContentId]]
|-
|-
| 19 || || Takes a 0x10-sized entry and returns another 0x10-sized entry.
| 21 || [2.0.0+] [[#WriteContentForDebug|WriteContentForDebug]]
|-
|-
| 20 || || Takes a 0x10-sized entry and returns another 0x10-sized entry.
| 22 || [2.0.0+] GetFreeSpaceSize
|-
|-
| 21 || || Takes a 0x10-sized entry, a u64, and a type5 buffer.
| 23 || [2.0.0+] GetTotalSpaceSize
|-
|-
| 22 || || Returns a u64.
| 24 || [3.0.0+] FlushPlaceHolder
|-
|-
| 23 || || Returns a u64.
| 25 || [4.0.0+] GetSizeFromPlaceHolderId
|-
| 26 || [4.0.0+] RepairInvalidFileAttribute
|-
| 27 || [8.0.0+] GetRightsIdFromPlaceHolderIdWithCache
|-
| 28 || [13.0.0+] RegisterPath
|-
| 29 || [13.0.0+] ClearRegisteredPath
|-
| 30 || [17.0.0+] GetProgramId
|}
|}
=== GeneratePlaceHolderId ===
No input. Returns an output [[#PlaceHolderId]].
Calls nn::util::GenerateUuid(), which internally calls nn::os::GenerateRandomBytes(16);
=== CreatePlaceHolder ===
Takes an input [[#ContentId]], an input [[#PlaceHolderId]] and an input s64 '''FileSize'''. No output.
=== DeletePlaceHolder ===
Takes an input [[#PlaceHolderId]]. No output.
=== HasPlaceHolder ===
Takes an input [[#PlaceHolderId]]. Returns an output bool.
=== WritePlaceHolder ===
Takes an input [[#PlaceHolderId]], an input u64 '''Offset''' and a type-0x5 input buffer. No output.
Writes the buffer to the file for the placeholder path at the specified offset.
=== Register ===
Takes a [[#ContentId]] and a [[#PlaceHolderId]], no output. Moves the Placeholder NCA content to the registered NCA path.
=== Delete ===
Takes a [[#ContentId]].
=== Has ===
Takes a [[#ContentId]].
=== GetPath ===
Takes a [[#ContentId]] and a type-0x1A output buffer containing a [[#Path|Path]].
=== GetPlaceHolderPath ===
Takes a [[#PlaceHolderId]] and a type-0x1A output buffer containing a [[#Path|Path]].
=== CleanupAllPlaceHolder ===
No input/output.
Deletes and re-creates the "Placeholder" directory.
=== ListPlaceHolder ===
This is like [[#GetNumberOfRegisteredEntries|GetNumberOfRegisteredEntries]], but for the "Placeholder" directory.
=== GetContentCount ===
No input. Returns an output u32 '''Count'''.
=== ListContentId ===
Takes an output buffer, s32 offset and gets all entries starting at that offset. Returns number of entries read.
Each entry is a [[#ContentId]].
The total read entries is exactly the same as the number of "<hex>.nca" directories in the storage FS(or at least under the "registered" directory?).
=== GetSizeFromContentId ===
Takes a [[#ContentId]] as input.
Returns the total size readable by [[#ReadContentIdFile]]. This is the same as the size-field in the [[NAX0]] "<ContentId>.nca/00" file.
=== DisableForcibly ===
No input/output.
Closes/Flushes all resources for the storage, and causes all future IPC commands to the current session to return error 0xC805.
=== RevertToPlaceHolder ===
Takes two [[#ContentId]] and a [[#PlaceHolderId]], no output.
Creates the registered directory NCA path, and renames the placeholder path to the registered NCA path.
=== SetPlaceHolderSize ===
Takes a [[#PlaceHolderId]], and a s64 size, no output.
=== ReadContentIdFile ===
Takes a type-0x6 output buffer, a [[#ContentId]] as input, and a s64 file offset.
Reads plaintext NCA file contents from the "Registered" path for the ContentId.
=== GetRightsIdFromPlaceHolderId ===
Takes a [[#PlaceHolderId]], returns a [[#RightsId]].
Gets the Rights ID for the [[#PlaceHolderId]]'s placeholder path.
=== GetRightsIdFromContentId ===
Takes a [[#ContentId]], returns a [[#RightsId]].
Gets the Rights ID for the [[#ContentId]]'s registered path
=== WriteContentForDebug ===
Takes a [[#ContentId]], a u64 offset, and a type-0x5 input buffer.
On debug units, writes the buffer to the NCA's registered path. On retail units, this just aborts.
== IContentMetaDatabase ==
This is "nn::ncm::IContentMetaDatabase".
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#Set|Set]]
|-
| 1 || [[#Get|Get]]
|-
| 2 || [[#Remove|Remove]]
|-
| 3 || [[#GetContentIdByType|GetContentIdByType]]
|-
| 4 || [[#ListContentInfo|ListContentInfo]]
|-
| 5 || [[#List|List]]
|-
| 6 || [[#GetLatestContentMetaKey|GetLatestContentMetaKey]]
|-
| 7 || [[#ListApplication|ListApplication]]
|-
| 8 || [[#Has|Has]]
|-
| 9 || [[#HasAll|HasAll]]
|-
| 10 || [[#GetSize|GetSize]]
|-
| 11 || [[#GetRequiredSystemVersion|GetRequiredSystemVersion]]
|-
| 12 || [[#GetPatchId|GetPatchId]]
|-
| 13 || [[#DisableForcibly|DisableForcibly]]
|-
| 14 || [[#LookupOrphanContent|LookupOrphanContent]]
|-
| 15 || [[#Commit|Commit]]
|-
| 16 || [[#HasContent|HasContent]]
|-
| 17 || [[#ListContentMetaInfo|ListContentMetaInfo]]
|-
| 18 || [[#GetAttributes|GetAttributes]]
|-
| 19 || [2.0.0+] [[#GetRequiredApplicationVersion|GetRequiredApplicationVersion]]
|-
| 20 || [5.0.0+] [[#GetContentIdByTypeAndIdOffset|GetContentIdByTypeAndIdOffset]]
|-
| 21 || [10.0.0+] [[#GetCount|GetCount]]
|-
| 22 || [10.0.0+] [[#GetOwnerApplicationId|GetOwnerApplicationId]]
|-
| 23 || [15.0.0+] GetContentAccessibilities
|-
| 24 || [15.0.0+] GetContentInfoByType
|-
| 25 || [15.0.0+] GetContentInfoByTypeAndIdOffset
|-
| 26 || [17.0.0+] GetPlatform
|}
=== Set ===
Takes a [[#ContentMetaKey]], a type-5 [[CNMT#PackagedContentInfo|PackagedContentInfo]] buffer and a u64 size.
=== Get ===
Takes a [[#ContentMetaKey]], a type-6 buffer to write [[CNMT#PackagedContentInfo|PackagedContentInfo]] to and a u64 size. Returns the actual number of bytes read into the buffer.
First 8 bytes of the data is header (u16 numExtraDataBytes, numContentRecords, numMetaRecords, padding). After the header is numExtraDataBytes of additional data, after which follow content records and content meta keys. Set takes this same data as input.
=== Remove ===
Takes a [[#ContentMetaKey]], and removes the associated record.
=== GetContentIdByType ===
Takes a [[#ContentMetaKey]] and a u8 [[#ContentType]]. Returns a [[#ContentId]].
=== ListContentInfo ===
Takes a type-6 buffer to write [[CNMT#PackagedContentInfo|PackagedContentInfo]] entries to, a [[#ContentMetaKey]], and a s32 index into the entries to start copying from. Returns a s32 entries_read.
=== List ===
Takes a type-6 buffer to write [[#ContentMetaKey]]s to, a u32 [[#ContentMetaType]], a [[#ProgramId]], a u64 ProgramId_Low, and u64 ProgramId_High. Returns s32 numEntriesTotal, numEntriesWritten.
Writes into the buffer all Content Meta Keys with low <= record->title_id <= high, and record->type == type. Additionally requires record->title_id == TID, if record->type is Application, Patch, Add-On, or Delta, otherwise, you can pass 0 for type to ignore the type and list them all in the range.
=== GetLatestContentMetaKey ===
Takes a [[#ProgramId]], and returns the [[#ContentMetaKey]] with the highest version field for that [[#ProgramId]].
=== ListApplication ===
This function takes in a type 6 buffer to write [[#ApplicationContentMetaKey|ApplicationContentMetaKey]] entries to, and a u8 "filter". If filter is zero, all update records will be copied to to the output buffer (space permitting). Otherwise, only titles with type == filter_type will be copied to the output buffer.
This func returns a s32 num_entries_total, and a s32 num_entries_written.
=== Has ===
Takes a [[#ContentMetaKey]] and returns an output u8 bool indicating whether that record is present in the database.
=== HasAll ===
Takes a type-0x5 input buffer containing an array of [[#ContentMetaKey]], and returns whether all of those records are present in the database.
=== GetSize ===
Takes a [[#ContentMetaKey]], and returns the size of the associated [[CNMT#PackagedContentInfo|PackagedContentInfo]].
=== GetRequiredSystemVersion ===
Takes an input [[#ContentMetaKey]]. Returns an output u32 '''RequiredSystemVersion'''.
=== GetPatchId ===
Takes a [[#ContentMetaKey]], and returns the update [[#ProgramId]] for that record.
=== DisableForcibly ===
Closes the meta database, and causes all future IPC commands to the current session to return error 0xDC05.
=== LookupOrphanContent ===
Takes a type-6 byte buffer, and a type-0x5 buffer containing an array of [[#ContentId]].
This function was stubbed to return 0xDC05 in [[2.0.0]].
On 1.0.0: Initialized the output buffer to all 1s. Then, for each [[#ContentId]] in the input buffer, it checks if that ContentId is present anywhere in the database, and if so writes 0 to the corresponding output byte.
In pseudocode, the function basically does the following:
for i in range(len(out_buf)):
out_buf[i] = 1
for i, ContentId in ContentId:
if is_present_in_database(ContentId):
out_buf[i] = 0
=== Commit ===
Flushes the in-memory database to savedata.
=== HasContent ===
Takes a [[#ContentMetaKey]] and an [[#ContentId]]. Returns whether the content records for that content meta key contain the [[#ContentId]].
=== ListContentMetaInfo ===
Takes a type-6 [[#ContentMetaKey]] output buffer, a s32 offset into that buffer, and an input [[#ContentMetaKey]].
=== GetAttributes ===
Takes an input [[#ContentMetaKey]]. Returns an output u8 '''Attributes'''.
=== GetRequiredApplicationVersion ===
Does the same thing as [[#GetRequiredSystemVersion|GetRequiredSystemVersion]], but for AddOnContents.
=== GetContentIdByTypeAndIdOffset ===
Takes a [[#ContentMetaKey]], a u8 [[#ContentType]] and a u8 id_offset. Returns a [[#ContentId]].
=== GetCount ===
Returns a u32 count.
=== GetOwnerApplicationId ===
Takes a [[#ContentMetaKey]]. Returns a [[#ApplicationId]].
= ncm:v =
This is "nn::ncm::ISystemVersionManager".
This service doesn't exist on retail.
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#GetSystemVersion|GetSystemVersion]]
|}
== GetSystemVersion ==
No input. Returns an output u32 '''SystemVersion'''.
= LocationListEntry =
Total size is 0x320 bytes.
{| class="wikitable" border="1"
|-
! Offset || Size || Description
|-
| 0x0 || 0x8|| Pointer to previous entry
|-
| 0x8 || 0x8|| Pointer to next entry
|-
| 0x10 || 0x8|| [[#ProgramId]]
|-
| 0x18 || 0x300 || [[#Path|Path]]
|-
| 0x318 || 0x4 || Flag
|-
| 0x31C || 0x4 || Padding
|}
= ContentId =
This is "nn::ncm::ContentId".
This is a 0x10-byte entry. This is originally from the hex portion of "<hex>.nca" directory-names from this storage FS(like [[SD_Filesystem|SD]]).
The ContentId is the same as the first 0x10-bytes from the calculated SHA256 hash, from hashing the entire output from [[#ReadContentIdFile]].
= PlaceHolderId =
This is "nn::ncm::PlaceHolderId".
This is the same as [[#ContentId]], except this is for placeholder content and originates from [[#GeneratePlaceHolderId]].
= ProgramId =
This is "nn::ncm::ProgramId" or "nn::ncm::SystemProgramId".
This is an u64 ID bound to a [[Title_list#System_Modules|program]].
= DataId =
This is "nn::ncm::DataId" or "nn::ncm::SystemDataId".
This is an u64 ID bound to a [[Title_list#System_Data_Archives|data archive]].
= ApplicationId =
This is "nn::ncm::ApplicationId" or "nn::ncm::SystemApplicationId".
This is an u64 ID bound to an [[Title_list#System_Applications|application]].
Value 0 is invalid.
= PatchId =
This is "nn::ncm::PatchId".
This is an u64 ID bound to a program patch.
= DeltaId =
This is "nn::ncm::DeltaId".
This is an u64 ID bound to a program delta fragment.
= AddOnContentId =
This is "nn::ncm::AddOnContentId".
This is an u64 ID bound to add-on content data.
= SystemUpdateId =
This is "nn::ncm::SystemUpdateId".
This is an u64 ID bound to system update data.
= DataPatchId =
This is "nn::ncm::DataPatchId".
This was added with [15.0.0+].
This is an u64 ID bound to a data patch.
= StorageId =
This is "nn::ncm::StorageId".
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || None
|-
| 1 || Host
|-
| 2 || GameCard
|-
| 3 || BuiltInSystem
|-
| 4 || BuiltInUser
|-
| 5 || SdCard
|-
| 6 || Any
|}
"None" and "Any" are meta storages.
nn::ncm::IsInstallableStorage returns true for BuiltInSystem, BuiltInUser, SdCard, and Any.
nn::ncm::IsUniqueStorage returns true for != None && != Any.
= RightsId =
This is "nn::ncm::RightsId".
This is a 0x10-byte struct. [3.0.0+] This is a 0x18-byte struct.
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0 || 0x10 || FS Rights ID
|-
| 0x10 || 0x1 || [3.0.0+] KeyGeneration
|-
| 0x11 || 0x7 || [3.0.0+] Padding
|}
= ProgramLocation =
This is "nn::ncm::ProgramLocation".
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0 || 0x8 || [[#ProgramId]]
|-
| 0x8 || 0x1 || [[#StorageId]]
|-
| 0x9 || 0x7 || Padding
|}
= Path =
This is "nn::ncm::Path". This is a 0x300-byte string.
= ContentInstallType =
This is "nn::ncm::ContentInstallType".
{| class="wikitable" border="1"
|-
! Value
! Description
|-
| 0x0
| Full
|-
| 0x1
| FragmentOnly
|-
| 0x7
| Invalid
|}
= ContentMetaType =
This is "nn::ncm::ContentMetaType".
{| class="wikitable" border="1"
|-
! Value
! Description
|-
| 0x00
| Invalid
|-
| 0x01
| SystemProgram ([[Title_list#System_Modules|System Modules]] or [[Title_list#System_Applets|System Applets]])
|-
| 0x02
| SystemData ([[Title_list#System_Data_Archives|System Data Archives]])
|-
| 0x03
| SystemUpdate
|-
| 0x04
| BootImagePackage ([[Title_list|Firmware package A or C]])
|-
| 0x05
| BootImagePackageSafe ([[Title_list|Firmware package B or D]])
|-
| 0x80
| Application
|-
| 0x81
| Patch
|-
| 0x82
| AddOnContent
|-
| 0x83
| Delta
|-
| 0x84
| [15.0.0+] DataPatch
|}
= ContentMetaPlatform =
This is "nn::ncm::ContentMetaPlatform".
{| class="wikitable" border="1"
|-
! Value
! Description
|-
| 0
| Nx
|}
= ContentType =
This is "nn::ncm::ContentType".
{| class="wikitable" border="1"
|-
! Value
! Description
|-
| 0
| Meta
|-
| 1
| Program
|-
| 2
| Data
|-
| 3
| Control
|-
| 4
| HtmlDocument
|-
| 5
| LegalInformation
|-
| 6
| DeltaFragment
|}
= ContentMetaKey =
This is "nn::ncm::ContentMetaKey".
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x8
| [[#ProgramId]]
|-
| 0x8
| 0x4
| Version
|-
| 0xC
| 0x1
| [[#ContentMetaType]]
|-
| 0xD
| 0x1
| [[#ContentInstallType]]
|-
| 0xE
| 0x2
| Padding
|}
= ApplicationContentMetaKey =
This is "nn::ncm::ApplicationContentMetaKey".
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x10
| [[#ContentMetaKey|ContentMetaKey]]
|-
| 0x10
| 0x8
| [[#ApplicationId|ApplicationId]]
|}
= MemoryReport =
This is "nn::ncm::MemoryReport".
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x20
| [[#MemoryResourceState|SystemContentMetaResourceState]]
|-
| 0x20
| 0x20
| [[#MemoryResourceState|SdAndUserContentMetaResourceState]]
|-
| 0x40
| 0x20
| [[#MemoryResourceState|GamecardContentMetaResourceState]]
|-
| 0x60
| 0x20
| [[#MemoryResourceState|HeapResourceState]]
|}
== MemoryResourceState ==
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x8
| PeakTotalAllocSize
|-
| 0x8
| 0x8
| PeakAllocSize
|-
| 0x10
| 0x8
| AllocatableSize
|-
| 0x18
| 0x8
| TotalFreeSize
|}
[[Category:Services]]