Nintendo Switch Brew

Filesystem services: Difference between revisions

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{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name || Arguments || Notes
! Cmd || Name
|-
|-
| 0 || OpenCodeFileSystem || u64 TitleId + X descriptor [[#ContentPath]] || Returns an [[#IFileSystem]].
| 0 || [[#OpenCodeFileSystem]]
|-
|-
| 1 || IsArchivedProgram || u64 ProcessId || Returns a bool (1 if the process id's [[#ContentPath]] ends in ".nca").
| 1 || [[#IsArchivedProgram]]
|-
|-
| 2 || [4.0.0+] SetCurrentProcess || PID descriptor ||
| 2 || [4.0.0+] [[#SetCurrentProcess]]
|}
|}
== OpenCodeFileSystem ==
Takes an [[NCM_services#ProgramId|ProgramId]] and a [[#ContentPath]]. Returns an [[#IFileSystem]].
[10.0.0+] This now takes an additional type-0x1A output buffer.
== IsArchivedProgram ==
Takes an u64 ProcessId. Returns a bool (1 if the process id's [[#ContentPath]] ends in ".nca").
== SetCurrentProcess ==
Takes a ProcessId descriptor.


= fsp-pr =
= fsp-pr =
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{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name || Notes
! Cmd || Name
|-
|-
| 0 || [[#RegisterProgram]] ||
| 0 || [[#RegisterProgram]]
|-
|-
| 1 || [[#UnregisterProgram]] ||
| 1 || [[#UnregisterProgram]]
|-
|-
| 2 || [4.0.0+] SetCurrentProcess ||
| 2 || [4.0.0+] [[#SetCurrentProcess]]
|-
|-
| 256 || [[#SetEnabledProgramVerification]] ||
| 256 || [1.0.0-9.2.0] [[#SetEnabledProgramVerification]]
|}
|}


== RegisterProgram ==
== RegisterProgram ==
Takes a storageID, a pid, a titleID, a 0x1C type-A buffer for the [[NPDM#FS_Access_Header| FS Access Header]], and a 0x2C type-A buffer for the [[NPDM#FS_Access_Control| FS Access Control]]
Takes a [[NCM_services#StorageId|StorageId]], an u64 ProcessId, a [[NCM_services#ProgramId|ProgramId]], a 0x1C type-A buffer for the [[NPDM#FS_Access_Header| FS Access Header]], and a 0x2C type-A buffer for the [[NPDM#FS_Access_Control| FS Access Control]]


Final FS permissions are stored as (ACI0_perms & ACID_perms). Will panic(svcBreak) when buffer sizes from ipc-rawdata are invalid.
Final FS permissions are stored as (ACI0_perms & ACID_perms). Will panic(svcBreak) when buffer sizes from ipc-rawdata are invalid.
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When the flag is zero, it will set ret=0 instead of ret={error} when verifying the fixed-key [[NPDM]] ACID signature fails. This also skips verifying the [[NCA_Format|NCA Header]] signature using the ACID key. Note that if verifying the fixed-key ACID signature is successful, and verifying the ACID-key NCA header signature fails, it will throw an error and abort.
When the flag is zero, it will set ret=0 instead of ret={error} when verifying the fixed-key [[NPDM]] ACID signature fails. This also skips verifying the [[NCA_Format|NCA Header]] signature using the ACID key. Note that if verifying the fixed-key ACID signature is successful, and verifying the ACID-key NCA header signature fails, it will throw an error and abort.
[10.0.0+] This was moved to [[Loader_services|Loader]].


= fsp-srv =
= fsp-srv =
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| 8 || [2.0.0+] [[#OpenFileSystemWithId]]
| 8 || [2.0.0+] [[#OpenFileSystemWithId]]
|-
|-
| 9 || [3.0.0+] OpenDataFileSystemByApplicationId
| 9 || [3.0.0+] OpenDataFileSystemByProgramId
|-
|-
| 11 || [[#OpenBisFileSystem]]
| 11 || [[#OpenBisFileSystem]]
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| 34 || [5.0.0+] GetCacheStorageSize
| 34 || [5.0.0+] GetCacheStorageSize
|-
|-
| 35 || [6.0.0+] CreateSaveDataFileSystemByHashSalt (Unofficial name, takes a total of 0xB0-bytes of input, no output)
| 35 || [6.0.0+] [[#CreateSaveDataFileSystemWithHashSalt]]
|-
| 36 || [9.0.0+] OpenHostFileSystemWithOption
|-
|-
| 51 || [[#OpenSaveDataFileSystem]]
| 51 || [[#OpenSaveDataFileSystem]]
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| 52 || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
| 52 || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
|-
|-
| 53 || [2.0.0+] OpenReadOnlySaveDataFileSystem
| 53 || [2.0.0+] [[#OpenReadOnlySaveDataFileSystem]]
|-
|-
| 57 || [3.0.0+] [[#ReadSaveDataFileSystemExtraDataBySaveDataSpaceId]]
| 57 || [3.0.0+] [[#ReadSaveDataFileSystemExtraDataBySaveDataSpaceId]]
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| 61 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]]
| 61 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]]
|-
|-
| 62 || [5.0.0+] OpenCacheStorageList
| 62 || [5.0.0+] OpenSaveDataInfoReaderOnlyCacheStorage
|-
|-
| 64 || [5.0.0+] OpenSaveDataInternalStorageFileSystem
| 64 || [5.0.0+] OpenSaveDataInternalStorageFileSystem
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| 65 || [5.0.0+] UpdateSaveDataMacForDebug
| 65 || [5.0.0+] UpdateSaveDataMacForDebug
|-
|-
| 66 || [5.0.0+] WriteSaveDataFileSystemExtraData2
| 66 || [5.0.0+] WriteSaveDataFileSystemExtraDataWithMask
|-
|-
| 67 || [6.0.0+] FindSaveDataWithFilter (Takes a total of 0x50-bytes of input, returns 8-bytes of output, and a type-0x6 output buffer)
| 67 || [6.0.0+] [[#FindSaveDataWithFilter]]
|-
|-
| 68 || [6.0.0+] OpenSaveDataIterator (Takes a total of 0x50-bytes of input, returns an #ISaveDataInfoReader)
| 68 || [6.0.0+] [[#OpenSaveDataInfoReaderWithFilter]]
|-
|-
| 69 || [8.0.0+] ReadSaveDataFileSystemExtraDataBySaveDataAttribute
| 69 || [8.0.0+] ReadSaveDataFileSystemExtraDataBySaveDataAttribute
|-
|-
| 70 || [8.0.0+] WriteSaveDataFileSystemExtraDataBySaveDataAttribute
| 70 || [8.0.0+] WriteSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute
|-
| 71 || [10.0.0+] ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute
|-
|-
| 80 || OpenSaveDataMetaFile
| 80 || OpenSaveDataMetaFile
|-
|-
| 81 || [4.0.0+] OpenSaveDataTransferManager (No input, returns an [[#ISaveDataTransferManager]])
| 81 || [4.0.0+] [[#OpenSaveDataTransferManager]]
|-
|-
| 82 || [5.0.0+] OpenSaveDataTransferManagerVersion2 (No input, returns an [[#ISaveDataTransferManagerWithDivision]])
| 82 || [5.0.0+] [[#OpenSaveDataTransferManagerVersion2]]
|-
|-
| 83 || [6.0.0+] OpenSaveDataTransferProhibiterForCloudBackUp (Takes an input u64, returns an [[#ISaveDataTransferProhibiter]])
| 83 || [6.0.0+] [[#OpenSaveDataTransferProhibiter]]
|-
|-
| 84 || [6.0.0+] ListApplicationAccessibleSaveDataOwnerId (Takes a total of 0x10-bytes of input, returns 4-bytes of output, and a type-0x6 output buffer)
| 84 || [6.0.0+] [[#ListAccessibleSaveDataOwnerId]]
|-
| 85 || [9.0.0+] [[#OpenSaveDataTransferManagerForSaveDataRepair]]
|-
| 86 || [10.0.0+] [[#OpenSaveDataMover]]
|-
|-
| 100 || OpenImageDirectoryFileSystem
| 100 || OpenImageDirectoryFileSystem
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| 110 || [[#OpenContentStorageFileSystem]]
| 110 || [[#OpenContentStorageFileSystem]]
|-
|-
| 120 || [6.0.0+] OpenCloudBackupWorkStorageFileSystem (Takes 4-bytes of input, returns an [[#IFileSystem]])
| 120 || [6.0.0-9.2.0] [[#OpenCloudBackupWorkStorageFileSystem]]
|-
|-
| 130 || [7.0.0+] OpenCustomStorageFileSystem (Takes 4-bytes of input, returns an [[#IFileSystem]])
| 130 || [7.0.0+] [[#OpenCustomStorageFileSystem]]
|-
|-
| 200 || OpenDataStorageByCurrentProcess
| 200 || OpenDataStorageByCurrentProcess
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| 203 || OpenPatchDataStorageByCurrentProcess
| 203 || OpenPatchDataStorageByCurrentProcess
|-
|-
| 204 || [7.0.0+] OpenDataFileSystemByProgramIndex (Takes an input u8, returns an [[#IFileSystem]])
| 204 || [7.0.0+] [[#OpenDataFileSystemWithProgramIndex]]
|-
|-
| 205 || [7.0.0+] OpenDataStorageByProgramIndex (Takes an input u8, returns an [[#IStorage]])
| 205 || [7.0.0+] [[#OpenDataStorageWithProgramIndex]]
|-
|-
| 400 || [[#OpenDeviceOperator]]
| 400 || [[#OpenDeviceOperator]]
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| 511 || [5.0.0+] NotifySystemDataUpdateEvent
| 511 || [5.0.0+] NotifySystemDataUpdateEvent
|-
|-
| 520 || [6.0.0+] SimulateGameCardDetectionEvent (Takes a total of 0xC-bytes of input, no output)
| 520 || [6.0.0+] [[#SimulateDeviceDetectionEvent]]
|-
|-
| 600 || [1.0.0-3.0.2] SetCurrentPosixTime
| 600 || [1.0.0-3.0.2] SetCurrentPosixTime
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| 640 || [4.0.0-7.0.1] IsSignedSystemPartitionOnSdCardValid
| 640 || [4.0.0-7.0.1] IsSignedSystemPartitionOnSdCardValid
|-
|-
| 700 || [5.0.0+] [[#OpenAccessFailureResolver]]
| 700 || [5.0.0+] [[#OpenAccessFailureDetectionEventNotifier]]
|-
|-
| 701 || [5.0.0+] GetAccessFailureDetectionEvent
| 701 || [5.0.0+] GetAccessFailureDetectionEvent
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| 720 || [5.0.0+] AbandonAccessFailure
| 720 || [5.0.0+] AbandonAccessFailure
|-
|-
| 800 || [2.0.0+] GetAndClearFileSystemProxyErrorInfo
| 800 || [2.0.0+] GetAndClearErrorInfo
|-
|-
| 810 || [7.0.0+] RegisterProgramIndexMapInfo
| 810 || [7.0.0+] RegisterProgramIndexMapInfo
|-
|-
| 1000 || SetBisRootForHost
| 1000 || [1.0.0-9.2.0] SetBisRootForHost
|-
|-
| 1001 || [[#SetSaveDataSize]]
| 1001 || [[#SetSaveDataSize]]
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| 1010 || [5.1.0-6.2.0] SetDataStorageRedirectTarget
| 1010 || [5.1.0-6.2.0] SetDataStorageRedirectTarget
|-
|-
| 1011 || [7.0.0+] GetAccessLogVersionInfo (Unofficial name, no input, returns two 32-bit values "version" and "program_index")
| 1011 || [7.0.0+] [[#GetProgramIndexForAccessLog]]
|-
| 1012 || [9.0.0+] GetFsStackUsage
|-
| 1013 || [9.0.0+] UnsetSaveDataRootPath
|-
| 1014 || [10.0.0+] OutputMultiProgramTagAccessLog
|-
|-
| 1100 || [4.0.0+] OverrideSaveDataTransferTokenSignVerificationKey
| 1100 || [4.0.0+] OverrideSaveDataTransferTokenSignVerificationKey
|-
|-
| 1110 || [6.0.0+] CorruptSaveDataFileSystemBySaveDataSpaceId2
| 1110 || [6.0.0+] CorruptSaveDataFileSystemByOffset
|-
| 1200 || [6.0.0+] [[#OpenMultiCommitManager]]
|-
|-
| 1200 || [6.0.0+] OpenMultiCommitManager (No input, returns an output #IMultiCommitManager)
| 1300 || [10.0.0+] [[#OpenBisWiper]]
|}
|}


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If the code were to request an invalid input type, panic. But this never happens.
If the code were to request an invalid input type, panic. But this never happens.


=== RwPermissions ===
The output values for [[#ReadWrite]] CanMountRegisteredUpdatePartition and [[#Call]] CanRegisterUpdatePartition are masked with the cached value of [[SMC#IsDebugMode|DebugMode]].
 
=== ReadWrite ===
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Type(s) || Mask || Name || Value || Used by
! AccessibilityType || Name || Mask || Permission || Used by
|-
|-
| 0x0 || 0x8000000000000801 || CanMountLogo || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 0x0 || CanMountLogo || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0x1 || 0x8000000000000801 || CanMountContentMeta || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 0x1 || CanMountContentMeta || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0x2 || 0x8000000000000801 || CanMountContentControl || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 0x2 || CanMountContentControl || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0x3 || 0x8000000000000801 || CanMountContentManual || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 0x3 || CanMountContentManual || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0x4 || 0x8000000000000801 || CanMountContentData || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 0x4 || CanMountContentData || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0x5 || 0x8000000000000801 || CanMountApplicationPackage || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 0x5 || CanMountApplicationPackage || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0x6 || 0x8000000000000000 || CanMountSaveDataStorage || 3 ||
| 0x6 || CanMountSaveDataStorage || 0x8000000000000000 || RW ||
|-
|-
| 0x7 || 0x8000000000000800 || CanMountContentStorage || 3 || [[#OpenContentStorageFileSystem]]
| 0x7 || CanMountContentStorage || 0x8000000000000800 || RW || [[#OpenContentStorageFileSystem]]
|-
|-
| 0x8 || 0x8000000000001000 || CanMountImageAndVideoStorage || 3 || [[#OpenImageDirectoryFileSystem]]
| 0x8 || CanMountImageAndVideoStorage ||0x8000000000001000 || RW || [[#OpenImageDirectoryFileSystem]]
|-
|-
| 0x9 || 0x8000000200000000<br/>([1.0.0-5.1.0] 0x8000000000000084) || CanMountCloudBackupWorkStorage || 3 || OpenCloudBackupWorkStorageFileSystem
| ([1.0.0-5.1.0] 0x9) || || 0x8000000000000084 || ||  
|-
|-
| 0xA || 0x8000000000000000<br/>([7.0.0-7.0.1] 0x4000000000000000)<br/>([6.0.0-6.2.0] 0x8000000000000084)<br/>([1.0.0-5.1.0] 0x8000000000000080) || CanMountCustomStorage || 3 || OpenCustomStorageFileSystem
| ([6.0.0-9.2.0] 0x9) || CanMountCloudBackupWorkStorage || 0x8000000200000000 || RW || OpenCloudBackupWorkStorageFileSystem
|-
|-
| 0xB || 0x8000000000000084<br/>([6.0.0-6.2.0] 0x8000000000000080)<br/>([1.0.0-5.1.0] 0x8000000000008080) || CanMountBisCalibrationFile || 3 || [[#OpenBisFileSystem]]
| 0x9 || CanMountCustomStorage0 || 0x8000000000000000 || RW || OpenCustomStorageFileSystem
|-
|-
| 0xC || 0x8000000000000080<br/>([1.0.0-6.2.0] 0x8000000000008080) || CanMountBisSafeMode || 3 || [[#OpenBisFileSystem]]
| ([1.0.0-5.1.0] 0xA) || || 0x8000000000000080 || ||
|-
|-
| 0xD || 0x8000000000008080<br/>([1.0.0-5.1.0] 0x8000000000000080) || CanMountBisUser || 3 || [[#OpenBisFileSystem]]
| ([6.0.0-6.2.0] 0xA) || || 0x8000000000000084 || ||
|-
|-
| 0xE || 0x8000000000008080<br/>([3.0.0-6.2.0] 0x8000000000000080)<br/>([1.0.0-2.3.0] 0xC000000000200000) || CanMountBisSystem || 3 || [[#OpenBisFileSystem]]
| ([7.0.0-7.0.1] 0xA) || || 0x4000000000000000 || ||
|-
|-
| 0xF || 0x8000000000000080<br/>([3.0.0-5.1.0] 0xC000000000200000)<br/>([1.0.0-2.3.0] 0x8000000000000010) || CanMountBisSystemProperEncryption || 3 || [[#OpenBisFileSystem]]
| ([8.0.0-9.2.0] 0xA) || || 0x8000000000000000 || ||
|-
|-
| 0x10 || 0x8000000000000080<br/>([6.0.0-6.2.0] 0xC000000000200000<br/>([3.0.0-5.1.0] 0x8000000000000010)<br/>([1.0.0-2.3.0] 0x8000000000040020) || CanMountBisSystemProperPartition || 3 || [[#OpenBisFileSystem]]
| 0xA || CanMountBisCalibrationFile || 0x8000000000000084 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x11 || 0xC000000000200000<br/>([6.0.0-6.2.0] 0x8000000000000010)<br/>([3.0.0-5.1.0] 0x8000000000040020)<br/>([1.0.0-2.3.0] 0x8000000000000028) || CanMountSdCard || 3 || [[#OpenSdCardFileSystem]]
| ([1.0.0-5.1.0] 0xB) || || 0x8000000000008080 || ||
|-
|-
| 0x12 || 0x8000000000000010<br/>([6.0.0-6.2.0] 0x8000000000040020)<br/>([3.0.0-5.1.0] 0x8000000000000028)<br/>([1.0.0-2.3.0] 0x8000000000000020) || CanMountGameCard || 3 || [[#OpenGameCardFileSystem]]
| ([6.0.0-6.2.0] 0xB) || || 0x8000000000000080 || ||
|-
|-
| 0x13 || 0x8000000000040020<br/>([6.0.0-6.2.0] 0x8000000000000028)<br/>([1.0.0-5.1.0] 0x8000000000000020) || CanMountDeviceSaveData || 3 || [[#OpenSaveDataFileSystem]]
| ([7.0.0-9.2.0] 0xB) || || 0x8000000000000084 || ||
|-
|-
| 0x14 || 0x8000000000000028<br/>([3.0.0-6.2.0] 0x8000000000000020)<br/>([1.0.0-2.3.0] 0x8000000000010082) || CanMountSystemSaveData || 3 || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
| 0xB || CanMountBisSafeMode || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x15 || 0x8000000000000020<br/>([3.0.0-5.1.0] 0x8000000000010082)<br/>([1.0.0-2.3.0] 0x8000000000010080) || CanMountOthersSaveData || 3 || [[#OpenSaveDataFileSystem]]
| ([1.0.0-6.2.0] 0xC) || || 0x8000000000008080 || ||
|-
|-
| 0x16 || 0x8000000000000020<br/>([6.0.0-6.2.0] 0x8000000000010082)<br/>([1.0.0-5.1.0] 0x8000000000010080) || CanMountOthersSystemSaveData || 3 || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
| ([7.0.0-9.2.0] 0xC) || || 0x8000000000000080 || ||
|-
|-
| 0x17 || 0x8000000000010082<br/>([6.0.0-6.2.0] 0x8000000000010080)<br/>([3.0.0-5.1.0] 0x8000000000000080)<br/>([1.0.0-2.3.0] 0x8000000000010080) || CanOpenBisPartitionBootPartition1Root || 3 || [[#OpenBisStorage]]
| 0xC || CanMountBisUser || 0x8000000000008080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x18 || 0x8000000000010080<br/>([6.0.0-6.2.0] 0x8000000000000080)<br/>([1.0.0-5.1.0] 0x8000000000010080) || CanOpenBisPartitionBootPartition2Root || 3 || [[#OpenBisStorage]]
| ([1.0.0-5.1.0] 0xD) || || 0x8000000000000080 || ||
|-
|-
| 0x19 || 0x8000000000000080<br/>([6.0.0-6.2.0] 0x8000000000010080) || CanOpenBisPartitionUserDataRoot || 3 || [[#OpenBisStorage]]
| ([6.0.0-9.2.0] 0xD) || || 0x8000000000008080 || ||
|-
|-
| 0x1A || 0x8000000000010080 || CanOpenBisPartitionBootConfigAndPackage2Part1 || 3 || [[#OpenBisStorage]]
| 0xD || CanMountBisSystem || 0x8000000000008080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x1B || 0x8000000000010080 || CanOpenBisPartitionBootConfigAndPackage2Part2 || 3 || [[#OpenBisStorage]]
| ([1.0.0-2.3.0] 0xE) || || 0xC000000000200000 || ||
|-
|-
| 0x1C || 0x8000000000010080 || CanOpenBisPartitionBootConfigAndPackage2Part3 || 3 || [[#OpenBisStorage]]
| ([3.0.0-6.2.0] 0xE) || || 0x8000000000000080 || ||
|-
|-
| 0x1D || 0x8000000000010080<br/>([1.0.0-2.3.0] 0x8000000000000084) || CanOpenBisPartitionBootConfigAndPackage2Part4 || 3 || [[#OpenBisStorage]]
| ([7.0.0-9.2.0] 0xE) || || 0x8000000000008080 || ||
|-
|-
| 0x1E || 0x8000000000010080<br/>([1.0.0-5.1.0] 0x8000000000000084) || CanOpenBisPartitionBootConfigAndPackage2Part5 || 3 || [[#OpenBisStorage]]
| 0xE || CanMountBisSystemProperEncryption || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x1F || 0x8000000000010080<br/>([6.0.0-6.2.0] 0x8000000000000084)<br/>([1.0.0-2.3.0] 0x8000000000000080) || CanOpenBisPartitionBootConfigAndPackage2Part6 || 3 || [[#OpenBisStorage]]
| ([1.0.0-2.3.0] 0xF) || || 0x8000000000000010 || ||
|-
|-
| 0x20 || 0x8000000000000084<br/>([1.0.0-5.1.0] 0x8000000000000080) || CanOpenBisPartitionCalibrationBinary || 3 || [[#OpenBisStorage]]
| ([3.0.0-5.1.0] 0xF) || || 0xC000000000200000 || ||
|-
|-
| 0x21 || 0x8000000000000084<br/>([6.0.0-6.2.0] 0x8000000000000080) || CanOpenBisPartitionCalibrationFile || 3 || [[#OpenBisStorage]]
| ([6.0.0-9.2.0] 0xF) || || 0x8000000000000080 || ||
|-
|-
| 0x22 || 0x8000000000000080 || CanOpenBisPartitionSafeMode || 3 || [[#OpenBisStorage]]
| 0xF || CanMountBisSystemProperPartition || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x23 || 0x8000000000000080<br/>([1.0.0-2.3.0] 0xC000000000200000) || CanOpenBisPartitionUser || 3 || [[#OpenBisStorage]]
| ([1.0.0-2.3.0] 0x10) || || 0x8000000000040020 || ||
|-
|-
| 0x24 || 0x8000000000000080<br/>([1.0.0-2.3.0] 0x8000000000000100) || CanOpenBisPartitionSystem || 3 || [[#OpenBisStorage]]
| ([3.0.0-5.1.0] 0x10) || || 0x8000000000000010 || ||
|-
|-
| 0x25 || 0x8000000000000080<br/>([3.0.0-5.1.0] 0xC000000000200000)<br/>([1.0.0-2.3.0] 0x8000000000100008) || CanOpenBisPartitionSystemProperEncryption || 3 || [[#OpenBisStorage]]
| ([6.0.0-6.2.0] 0x10) || || 0xC000000000200000 || ||
|-
|-
| 0x26 || 0x8000000000000080<br/>([6.0.0-6.2.0] 0xC000000000200000)<br/>([3.0.0-5.1.0] 0x8000000000000100)<br/>([1.0.0-2.3.0] 0xC000000000400000) || CanOpenBisPartitionSystemProperPartition || 3 || [[#OpenBisStorage]]
| ([7.0.0-9.2.0] 0x10) || || 0x8000000000000080 || ||
|-
|-
| [3.0.0+] 0x27 || 0xC000000000200000<br/>([6.0.0-6.2.0] 0x8000000000000100)<br/>([1.0.0-5.1.0] 0x8000000000100008) || CanOpenSdCardStorage || ||
| 0x10 || CanMountSdCard || 0xC000000000200000 || RW || [[#OpenSdCardFileSystem]]
|-
|-
| [3.0.0+] 0x28 || 0x8000000000000100<br/>([6.0.0-6.2.0] 0x8000000000100008)<br/>([1.0.0-5.1.0] 0xC000000000400000) || CanOpenGameCardStorage || 3 || [[#OpenGameCardStorage]], [[#EraseGameCard]] (bit1), [[#WriteToGameCard]] (bit1), [[#GetGameCardErrorInfo]] (bit1), [[#EraseAndWriteParamDirectly]] (bit1), [[#ReadParamDirectly]] (bit1), [[#ForceEraseGameCard]] (bit1)
| ([1.0.0-2.3.0] 0x11) || || 0x8000000000000028 || ||
|-
|-
| [4.0.0+] 0x29 || 0x8000000000100008<br/>([6.0.0-6.2.0] 0xC000000000400000)<br/>([1.0.0-5.1.0] 0x8000000000010000) || CanMountSystemDataPrivate || 1 || [[#OpenFileSystem]], [[#OpenDataStorageByDataId]]
| ([3.0.0-5.1.0] 0x11) || || 0x8000000000040020 || ||
|-
|-
| [5.0.0+] 0x2A || 0xC000000000400000<br/>([6.0.0-6.2.0] 0x8000000000010000)<br/>([1.0.0-5.1.0] 0x8000000000000000) || CanMountHost || 3 || [[#OpenHostFileSystem]]
| ([6.0.0-6.2.0] 0x11) || || 0x8000000000000010 || ||
|-
|-
| [6.0.0+] 0x2B || 0x8000000000010000<br/>([1.0.0-6.2.0]0x8000000000000000) || CanMountRegisteredUpdatePartition || 1 || [[#OpenRegisteredUpdatePartition]]
| ([7.0.0-9.2.0] 0x11) || || 0xC000000000200000 || ||
|-
|-
| [7.0.0+] 0x2C || 0x8000000000000000 || CanOpenSaveDataInternalStorage || 3 || [[#OpenSaveDataInternalStorageFileSystem]]
| 0x11 || CanMountGameCard || 0x8000000000000010 || R- || [[#OpenGameCardFileSystem]]
|-
|-
| [7.0.0+] 0x2D || 0x0000000000000000 || CanNotMountCustomStorage || 3 || OpenCustomStorageFileSystem
| ([1.0.0-2.3.0] 0x12) || || 0x8000000000000020 || ||
|}
|-
 
| ([3.0.0-5.1.0] 0x12) || || 0x8000000000000028 || ||
=== BoolPermissions ===
|-
{| class="wikitable" border="1"
| ([6.0.0-6.2.0] 0x12) || || 0x8000000000040020 || ||
|-
| ([7.0.0-9.2.0] 0x12) || || 0x8000000000000010 || ||
|-
| 0x12 || CanMountDeviceSaveData || 0x8000000000040020 || RW || [[#OpenSaveDataFileSystem]]
|-
|-
! Type(s) || Mask || Name || Used by
| ([1.0.0-5.1.0] 0x13) || || 0x8000000000000020 || ||
|-
|-
| 0x0 || 0x8000000000000080 || CanInvalidateBisCache || [[#InvalidateBisCache]]
| ([6.0.0-6.2.0] 0x13) || || 0x8000000000000028 || ||
|-
|-
| 0x1 || 0x8000000000000080 || CanEraseMmc || [[#EraseMmc]]
| ([7.0.0-9.2.0] 0x13) || || 0x8000000000040020 || ||
|-
|-
| 0x2 || 0x8000000000000010 || CanGetGameCardDeviceCertificate || [[#GetGameCardDeviceCertificate]]
| 0x13 || CanMountSystemSaveData || 0x8000000000000028 || RW || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
|-
|-
| 0x3 || 0x8000000000000010 || CanGetGameCardIdSet || [[#GetGameCardIdSet]]
| ([1.0.0-2.3.0] 0x14) || || 0x8000000000010082 || ||
|-
|-
| 0x4 || 0x8000000000000200 || CanFinalizeGameCardDriver || [[#FinalizeGameCardDriver]]
| ([3.0.0-6.2.0] 0x14) || || 0x8000000000000020 || ||
|-
|-
| 0x5 || 0x8000000000000200 || CanGetGameCardAsicInfo || [[#GetGameCardAsicInfo]]
| ([7.0.0-9.2.0] 0x14) || || 0x8000000000000028 || ||
|-
|-
| 0x6 || 0x8000000000002020 || CanCreateSaveData || [[#CreateSaveDataFileSystem]]
| 0x14 || CanMountOthersSaveData || 0x8000000000000020 || RW || [[#OpenSaveDataFileSystem]]
|-
|-
| 0x7 || 0x8000000000000060 || CanDeleteSaveData || [[#DeleteSaveDataFileSystem]], [[#RegisterSaveDataFileSystemAtomicDeletion]]
| ([1.0.0-2.3.0] 0x15) || || 0x8000000000010080 || ||
|-
|-
| 0x8 || 0x8000000000000028 || CanCreateSystemSaveData || [[#CreateSaveDataFileSystemBySystemSaveDataId]]
| ([3.0.0-5.1.0] 0x15) || || 0x8000000000010082 || ||
|-
|-
| 0x9 || 0x8000000000000020 || CanCreateOthersSystemSaveData || [[#CreateSaveDataFileSystemBySystemSaveDataId]]
| ([6.0.0-9.2.0] 0x15) || || 0x8000000000000020 || ||
|-
|-
| 0xA || 0x8000000000004028 || CanDeleteSystemSaveData || [[#DeleteSaveDataFileSystem]], [[#RegisterSaveDataFileSystemAtomicDeletion]]
| 0x15 || CanMountOthersSystemSaveData || 0x8000000000000020 || RW || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
|-
|-
| 0xB || 0x8000000000000060 || CanOpenSaveDataInfoReader || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
| ([1.0.0-5.1.0] 0x16) || || 0x8000000000010080 || ||
|-
|-
| 0xC || 0x8000000000004020 || CanOpenSaveDataInfoReaderForSystem || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
| ([6.0.0-6.2.0] 0x16) || || 0x8000000000010082 || ||
|-
|-
| 0xD || 0x8000000000000040<br/>([1.0.0-5.1.0] 0x8000000000020000) || CanOpenSaveDataIterator || OpenSaveDataIterator
| ([7.0.0-9.2.0] 0x16) || || 0x8000000000000020 || ||
|-
|-
| 0xE || 0x8000000000020000<br/>([1.0.0-5.1.0] 0x8000000000000400) || CanOpenSaveDataMetaFile || [[#OpenSaveDataMetaFile]]
| 0x16 || CanOpenBisPartitionBootPartition1Root || 0x8000000000010082 || RW || [[#OpenBisStorage]]
|-
|-
| 0xF || 0x8000000000000400<br/>([1.0.0-5.1.0] 0x8000000000004060) || CanSetCurrentPosixTime || [[#SetCurrentPosixTime]], [[#SetCurrentPosixTimeWithTimeDifference]]
| ([1.0.0-2.3.0] 0x17) || || 0x8000000000010080 || ||
|-
|-
| 0x10 || 0x8000000000004060<br/>([1.0.0-5.1.0] 0x8000000000080000) || CanReadSaveDataFileSystemExtraData || [[#ReadSaveDataFileSystemExtraData]]
| ([3.0.0-5.1.0] 0x17) || || 0x8000000000000080 || ||
|-
|-
| 0x11 || 0x8000000000080000 || CanSetGlobalAccessLogMode || [[#SetGlobalAccessMode]]
| ([6.0.0-6.2.0] 0x17) || || 0x8000000000010080 || ||
|-
|-
| 0x12 || 0x8000000000080000<br/>([1.0.0-5.1.0] Invalid) || CanSetSpeedEmulationMode || [[#SetSpeedEmulationMode]]
| ([7.0.0-9.2.0] 0x17) || || 0x8000000000010082 || ||
|-
|-
| 0x13 || Invalid<br/>([1.0.0-5.1.0] 0xC000000000800000) || ||  
| 0x17 || CanOpenBisPartitionBootPartition2Root || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x14 || 0xC000000000800000<br/>([1.0.0-5.1.0] 0xC000000001000000) || CanFillBis || [[#CreatePaddingFile]], [[#DeleteAllPaddingFiles]]
| ([1.0.0-5.1.0] 0x18) || || 0x8000000000010080 || ||
|-
|-
| 0x15 || 0xC000000001000000<br/>([5.0.0-5.1.0] 0x8000000001000060)<br/>([1.0.0-4.1.0] 0xC000000002000000) || CanCorruptSaveData || [[#CorruptSaveDataFileSystem]], [[#CorruptSaveDataFileSystemBySaveDataSpaceId]]
| ([6.0.0-6.2.0] 0x18) || || 0x8000000000000080 || ||
|-
|-
| [2.0.0+] 0x16 || 0x8000000001000060<br/>([5.0.0-5.1.0] 0x8000000000000060)<br/>([1.0.0-4.1.0] 0x8000000004000000) || CanCorruptSystemSaveData || [[#CorruptSaveDataFileSystem]], [[#CorruptSaveDataFileSystemBySaveDataSpaceId]]
| ([7.0.0-9.2.0] 0x18) || || 0x8000000000010080 || ||
|-
|-
| [2.0.0+] 0x17 || 0x8000000000000060<br/>([5.0.0-5.1.0] 0xC000000002000000)<br/>([1.0.0-4.1.0] 0x8000000008000000) || CanVerifySaveData || [[#VerifySaveDataFileSystem]], [[#VerifySaveDataFileSystemBySaveDataSpaceId]]
| 0x18 || CanOpenBisPartitionUserDataRoot || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| [2.0.0+] 0x18 || 0xC000000002000000<br/>([5.0.0-5.1.0] 0x8000000004000000)<br/>([1.0.0-4.1.0] 0x8000000010000000) || CanDebugSaveData || [[#CreateSaveDataFileSystem]], [[#OpenSaveDataFileSystem]], [[#SetSaveDataRootPath]]
| ([6.0.0-6.2.0] 0x19) || || 0x8000000000010080 || ||
|-
|-
| [2.0.0+] 0x19 || 0x8000000004000000<br/>([5.0.0-5.1.0] 0x8000000008000000)<br/>([1.0.0-4.1.0] 0x8000000000000800) || CanFormatSdCard || [[#FormatSdCardFileSystem]]
| ([7.0.0-9.2.0] 0x19) || || 0x8000000000000080 || ||
|-
|-
| [2.0.0+] 0x1A || 0x8000000008000000<br/>([5.0.0-5.1.0] 0x8000000010000000)<br/>([1.0.0-4.1.0] 0x8000000000004020) || CanGetRightsId || [[#GetRightsId]], [[#GetRightsIdAndKeyGenerationByPath]], [[#GetRightsIdByPath]]
| 0x19 || CanOpenBisPartitionBootConfigAndPackage2Part1 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [3.0.0+] 0x1B || 0x8000000010000000<br/>([5.0.0-5.1.0] 0x8000000000000800)<br/>([1.0.0-4.1.0] 0x8000000000002020) || CanRegisterExternalKey || [[#RegisterExternalKey]], [[#UnregisterAllExternalKey]]
| ([1.0.0-9.2.0] 0x1A) || || 0x8000000000010080 || ||
|-
|-
| [3.0.0+] 0x1C || 0x8000000000000800<br/>([5.0.0-5.1.0] 0x8000000000004020)<br/>([1.0.0-4.1.0] 0x8000000000000028) || CanSetEncryptionSeed || [[#SetSdCardEncryptionSeed]]
| 0x1A || CanOpenBisPartitionBootConfigAndPackage2Part2 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [4.0.0+] 0x1D || 0x8000000000000020<br/>([5.0.0-5.1.0] 0x8000000000000000)<br/>([1.0.0-4.1.0] 0x8000000020000000) || SaveDataExtraData_Write0 || [[#WriteSaveDataFileSystemExtraData]], [[#WriteSaveDataFileSystemExtraData2]]
| ([1.0.0-9.2.0] 0x1B) || || 0x8000000000010080 || ||
|-
|-
| [4.0.0+] 0x1E || 0x8000000000004020<br/>([5.0.0-5.1.0] 0x8000000000002020)<br/>([1.0.0-4.1.0] 0x8000000040000000) || CanWriteSaveDataFileSystemExtraDataFlags || [[#WriteSaveDataFileSystemExtraData]], [[#WriteSaveDataFileSystemExtraData2]]
| 0x1B || CanOpenBisPartitionBootConfigAndPackage2Part3 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [4.0.0+] 0x1F || 0x8000000000000020<br/>([5.0.0-5.1.0] 0x8000000000000028)<br/>([1.0.0-4.1.0] 0x8000000000000000) || SaveDataExtraData_Write1 || [[#WriteSaveDataFileSystemExtraData]], [[#WriteSaveDataFileSystemExtraData2]]
| ([1.0.0-9.2.0] 0x1C) || || 0x8000000000010080 || ||
|-
|-
| [4.0.0+] 0x20 || 0x8000000000000000<br/>([5.0.0-5.1.0] 0x8000000020000000)<br/>([1.0.0-4.1.0] 0x8000000000000000) || CanWriteSaveDataFileSystemExtraDataAll || [[#WriteSaveDataFileSystemExtraData]], [[#WriteSaveDataFileSystemExtraData2]]
| 0x1C || CanOpenBisPartitionBootConfigAndPackage2Part4 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [5.0.0+] 0x21 || 0x8000000000002020<br/>([1.0.0-5.1.0] 0x8000000040000000) || CanExtendSaveData || [[#ExtendSaveDataFileSystem]]
| ([1.0.0-2.3.0] 0x1D) || || 0x8000000000000084 || ||
|-
|-
| [5.0.0+] 0x22 || 0x8000000000000028<br/>([1.0.0-5.1.0] 0x0000000080000002) || CanExtendSystemSaveData || [[#ExtendSaveDataFileSystem]]
| ([3.0.0-9.2.0] 0x1D) || || 0x8000000000010080 || ||
|-
|-
| [5.0.0+] 0x23 || 0x8000000020000000<br/>([1.0.0-5.1.0] 0x8000000000000000) || CanRegisterUpdatePartition || [[#RegisterUpdatePartition]]
| 0x1D || CanOpenBisPartitionBootConfigAndPackage2Part5 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [5.0.0+] 0x24 || 0x8000000040000000<br/>([1.0.0-5.1.0] 0x8000000000000000) || CanOpenSaveDataTransferManager || [[#OpenSaveDataTransferManager]]
| ([1.0.0-5.1.0] 0x1E) || || 0x8000000000000084 || ||
|-
|-
| [5.0.0+] 0x25 || 0x8000000200000000<br/>([1.0.0-5.1.0] 0x8000000080200000) || CanOpenSaveDataTransferManagerVersion2 || [[#OpenSaveDataTransferManagerVersion2]]
| ([6.0.0-9.2.0] 0x1E) || || 0x8000000000010080 || ||
|-
|-
| [5.0.0+] 0x26 || 0x8000000200002000<br/>([1.0.0-5.1.0] 0x8000000080000110) || CanOpenSaveDataTransferProhibiterForCloudBackUp || [[#OpenSaveDataTransferProhibiterForCloudBackUp]]
| 0x1E || CanOpenBisPartitionBootConfigAndPackage2Part6 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [5.0.0+] 0x27 || 0x8000000240002000 <br/>([6.0.0-7.0.1] 0x8000000200002000)<br/>([1.0.0-5.1.0] 0x8000000000100008) || CanListApplicationAccessibleSaveDataOwnerId || ListApplicationAccessibleSaveDataOwnerId
| ([1.0.0-5.1.0] 0x1F) || || 0x8000000000000080 || ||
|-
|-
| [5.0.0+] 0x28 || 0x8000000000000000<br/>([1.0.0-5.1.0] 0x8000000080010000) || CanControlMmcPatrol || [[#SuspendMmcPatrol]], [[#ResumeMmcPatrol]]
| ([6.0.0-6.2.0] 0x1F) || || 0x8000000000000084 || ||
|-
|-
| [5.0.0+] 0x29 || 0x8000000000000000<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanOverrideSaveDataTransferTokenSignVerificationKey || [[#OverrideSaveDataTransferTokenSignVerificationKey]]
| ([7.0.0-9.2.0] 0x1F) || || 0x8000000000010080 || ||
|-
|-
| [5.0.0+] 0x2A || 0x8000000080200000<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanOpenSdCardDetectionEventNotifier || [[#OpenSdCardDetectionEventNotifier]]
| 0x1F || CanOpenBisPartitionCalibrationBinary || 0x8000000000000084 || RW || [[#OpenBisStorage]]
|-
|-
| [5.0.0+] 0x2B || 0x8000000080000110<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanOpenGameCardDetectionEventNotifier || [[#OpenGameCardDetectionEventNotifier]]
| ([1.0.0-5.1.0] 0x20) || || 0x8000000000000080 || ||
|-
|-
| [5.0.0+] 0x2C || 0x8000000000100008<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanOpenSystemDataUpdateEventNotifier || [[#OpenSystemDataUpdateEventNotifier]]
| ([6.0.0-9.2.0] 0x20) || || 0x8000000000000084 || ||
|-
|-
| [5.0.0+] 0x2D || 0x8000000000010000<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanNotifySystemDataUpdateEvent || [[#NotifySystemDataUpdateEvent]]
| 0x20 || CanOpenBisPartitionCalibrationFile || 0x8000000000000084 || RW || [[#OpenBisStorage]]
|-
|-
| [5.0.0+] 0x2E || 0x8000000100000000<br/>([1.0.0-5.1.0] 0x8000000040000000) || CanOpenAccessFailureDetectionEventNotifier || [[#OpenAccessFailureResolver]]
| ([6.0.0-6.2.0] 0x21) || || 0x8000000000000080 || ||
|-
|-
| [5.0.0+] 0x2F || 0x8000000100000000<br/>([1.0.0-5.1.0] 0x8000000080200000) || CanGetAccessFailureDetectionEvent || [[#GetAccessFailureDetectionEvent]]
| ([7.0.0-9.2.0] 0x21) || || 0x8000000000000084 || ||
|-
|-
| [5.1.0+] 0x30 || 0x8000000100000000<br/>([1.0.0-5.1.0] 0x8000000080080000) || CanIsAccessFailureDetected || [[#IsAccessFailureDetected]]  
| 0x21 || CanOpenBisPartitionSafeMode || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| [6.0.0+] 0x31 || 0x8000000100000000 || CanResolveAccessFailure || [[#ResolveAccessFailure]]
| ([1.0.0-9.2.0] 0x22) || || 0x8000000000000080 || ||
|-
|-
| [6.0.0+] 0x32 || 0x8000000100000000 || CanAbandonAccessFailure || [[#AbandonAccessFailure]]
| 0x22 || CanOpenBisPartitionUser || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| [6.0.0+] 0x33 || 0x8000000040000000 || CanQuerySaveDataInternalStorageTotalSize || [[#QuerySaveDataInternalStorageTotalSize]]
| ([1.0.0-2.3.0] 0x23) || || 0xC000000000200000 || ||
|-
|-
| [6.0.0+] 0x34 || 0x8000000200000020 || CanGetSaveDataCommitId || [[#GetSaveDataCommitId]]
| ([3.0.0-9.2.0] 0x23) || || 0x8000000000000080 || ||
|-
|-
| [6.0.0+] 0x35 || 0x8000000000200000 || CanSetSdCardAccessibility || [[#SetSdCardAccessibility]]
| 0x23 || CanOpenBisPartitionSystem || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| [6.0.0+] 0x36 || 0x4000000000000000 || CanSimulateGameCardDetectionEvent || SimulateGameCardDetectionEvent, SetSimulationEvent, ClearSimulationEvent
| ([1.0.0-2.3.0] 0x24) || || 0x8000000000000100 || ||
|-
|-
| [6.0.0+] 0x37 || 0x8000000000000000<br/>([6.0.0-6.2.0] 0x8000000000080000) || CanSetDataStorageRedirectTarget || SetDataStorageRedirectTarget
| ([3.0.0-9.2.0] 0x24) || || 0x8000000000000080 || ||
|-
|-
| [6.0.0+] 0x38 || 0x8000000400000000<br/>([6.0.0-6.2.0] 0x8000000000000000) || || [[#CreateSaveDataFileSystem]], CreateSaveDataFileSystemByHashSalt
| 0x24 || CanOpenBisPartitionSystemProperEncryption || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| [8.0.0+] 0x39 || 0x8000000000000010 || CanChallengeCardExistence || ChallengeCardExistence
| ([1.0.0-2.3.0] 0x25) || || 0x8000000000100008 || ||
|}
|-
 
| ([3.0.0-5.1.0] 0x25) || || 0xC000000000200000 || ||
== OpenFileSystem ==
|-
Takes a type-0x19 input buffer (ContentPath) and a [[#FileSystemType]] as parameters. Returns an [[#IFileSystem]].
| ([6.0.0-9.2.0] 0x25) || || 0x8000000000000080 || ||
 
|-
[2.0.0+] This function was removed.
| 0x25 || CanOpenBisPartitionSystemProperPartition || 0x8000000000000080 || RW || [[#OpenBisStorage]]
 
|-
== SetCurrentProcess ==
| ([1.0.0-2.3.0] 0x26) || || 0xC000000000400000 || ||
Takes a pid-descriptor.
|-
 
| ([3.0.0-5.1.0] 0x26) || || 0x8000000000000100 || ||
== OpenFileSystemWithPatch ==
|-
Takes an input [[#FileSystemType]] and an u64 title-id. Returns an [[#IFileSystem]].
| ([6.0.0-6.2.0] 0x26) || || 0xC000000000200000 || ||
 
|-
Web-applet loads the [[#FileSystemType]] (which must be '''ContentManual''') from u32_table[inparam].
| ([7.0.0-9.2.0] 0x26) || || 0x8000000000000080 || ||
 
|-
Note: web-applet strings refer to both this cmd and [[#OpenFileSystemWithId]] as "MountContent", but official nn_sf_sync symbols use "OpenXX" names.
| 0x26 || CanOpenSdCardStorage || 0xC000000000200000 || RW ||
 
|-
== OpenFileSystemWithId ==
| ([3.0.0-5.1.0] 0x27) || || 0x8000000000100008 || ||
Takes a type-0x19 input buffer, an [[#FileSystemType]] and an u64 title-id. Returns an [[#IFileSystem]].
|-
 
| ([6.0.0-6.2.0] 0x27) || || 0x8000000000000100 || ||
The [[#IFileSystem]] must be '''ContentMeta''' if the NCA type is 0 (control).
|-
| ([7.0.0-9.2.0] 0x27) || || 0xC000000000200000 || ||
|-
| [3.0.0+] 0x27 || CanOpenGameCardStorage || 0x8000000000000100 || RW || [[#OpenGameCardStorage]], [[#EraseGameCard]] (bit1), [[#WriteToGameCard]] (bit1), [[#GetGameCardErrorInfo]] (bit1), [[#EraseAndWriteParamDirectly]] (bit1), [[#ReadParamDirectly]] (bit1), [[#ForceEraseGameCard]] (bit1)
|-
| ([3.0.0-5.1.0] 0x28) || || 0xC000000000400000 || ||
|-
| ([6.0.0-6.2.0] 0x28) || || 0x8000000000100008 || ||
|-
| ([7.0.0-9.2.0] 0x28) || || 0x8000000000000100 || ||
|-
| [3.0.0+] 0x28 || CanMountSystemDataPrivate || 0x8000000000100008 || R- || [[#OpenFileSystem]], [[#OpenDataStorageByDataId]]
|-
| ([4.0.0-5.1.0] 0x29) || || 0x8000000000010000 || ||
|-
| ([6.0.0-6.2.0] 0x29) || || 0xC000000000400000 || ||
|-
| ([7.0.0-9.2.0] 0x29) || || 0x8000000000100008 || ||
|-
| [4.0.0+] 0x29 || CanMountHost || 0xC000000000400000 || RW || [[#OpenHostFileSystem]]
|-
| ([5.0.0-5.1.0] 0x2A) || || 0x8000000000000000 || ||
|-
| ([6.0.0-6.2.0] 0x2A) || || 0x8000000000010000 || ||
|-
| ([7.0.0-9.2.0] 0x2A) || || 0xC000000000400000 || ||
|-
| [5.0.0+] 0x2A || CanMountRegisteredUpdatePartition || 0x8000000000010000 || R- || [[#OpenRegisteredUpdatePartition]]
|-
| ([6.0.0-6.2.0] 0x2B) || || 0x8000000000000000 || ||
|-
| ([7.0.0-9.2.0] 0x2B) || || 0x8000000000010000 || ||
|-
| [6.0.0+] 0x2B || CanOpenSaveDataInternalStorage || 0x8000000000000000 || RW || [[#OpenSaveDataInternalStorageFileSystem]]
|-
| ([7.0.0-9.2.0] 0x2C) || || 0x8000000000000000 || ||
|-
| [7.0.0+] 0x2C || CanNotMount || 0x0000000000000000 || -- || OpenCustomStorageFileSystem
|-
| ([7.0.0-9.2.0] 0x2D) || || 0x0000000000000000 || ||
|}


The input buffer is the output string path from [[NS_Services#GetApplicationContentPath|GetApplicationContentPath]].
=== Call ===
 
{| class="wikitable" border="1"
May return errors when attempting to access NCA-paths for an update-title with a gamecard, when the gamecard isn't inserted. May return error 0x7D402 in some cases with update-titles. Non-val2 in32 values with NCA-type1 are unusable, even for normal titles.
|-
 
! OperationType || Name || Mask || Used by
The official "MountApplicationPackage" func uses this with in64=0 and [[#FileSystemType]] '''ApplicationPackage'''.
|-
 
| 0x0 || CanInvalidateBisCache || 0x8000000000000080 || [[#InvalidateBisCache]]
After the [[#FileSystemType]] specific permissions are checked, it then gets the func retval for permissions-type 0x25 and func0.
|-
 
| 0x1 || CanEraseMmc || 0x8000000000000080 || EraseMmc
When [[#FileSystemType]] is '''ContentMeta''', it uses in64=0xffffffffffffffff internally, otherwise it checks if in64 is set to 0xffffffffffffffff then throws an error if so. When the in64 used internally is not 0xffffffffffffffff, it's compared with the NCA titleID, then an error is thrown on mismatch.
|-
 
| 0x2 || CanGetGameCardDeviceCertificate || 0x8000000000000010 || GetGameCardDeviceCertificate
== OpenBisFileSystem ==
|-
Takes a type-0x19 input buffer string and a u32 [[Flash_Filesystem|Bis partitionID]]. Official user-process code sets instr[0] = 0 normally. Returns an [[#IFileSystem]].
| 0x3 || CanGetGameCardIdSet || 0x8000000000000010 || GetGameCardIdSet
 
|-
Only partitionIDs for FAT partitions are usable with this, otherwise error 0x2EE202 is returned. Seems to be about the same as [[#OpenBisStorage]] except this mounts the partition filesystem instead of allowing direct access to the partition sectors.
| 0x4 || CanFinalizeGameCardDriver || 0x8000000000000200 || FinalizeGameCardDriver
 
|-
== OpenBisStorage ==
| 0x5 || CanGetGameCardAsicInfo || 0x8000000000000200 || GetGameCardAsicInfo
Takes a u32 partition ID, returns 0x2EE202 for partitions which do not exist, 0x320002 for partitions which cannot be opened and a valid [[#IStorage]] handle otherwise.
|-
 
| 0x6 || CanCreateSaveData || 0x8000000000002020 || [[#CreateSaveDataFileSystem]]
== InvalidateBisCache ==
|-
Seems to invalidate the Bis cache for MBR/GPT after overwriting that data via the OpenBisStorage IStorage. Used by [[SystemInitializer]].
| 0x7 || CanDeleteSaveData || 0x8000000000000060 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
 
|-
== DeleteSaveDataFileSystem ==
| 0x8 || CanCreateSystemSaveData || 0x8000000000000028 || CreateSaveDataFileSystemBySystemSaveDataId
Takes an input u64.
|-
 
| 0x9 || CanCreateOthersSystemSaveData || 0x8000000000000020 || CreateSaveDataFileSystemBySystemSaveDataId
== CreateSaveDataFileSystem ==
|-
Takes a 0x40-byte Save-struct entry, a 0x40-byte SaveCreate-struct entry, and a 0x10-byte input struct.
| 0xA || CanDeleteSystemSaveData || 0x8000000000004028 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
 
|-
Only the first 0x5-bytes in the 0x10-byte struct are initialized: all-zero when automatically creating savedata during savecommon mount by official user-processes. In the dedicated save-creation code in official user-processes: +0 u32 = 0x40060, +4 u8 = 1.
| 0xB || CanOpenSaveDataInfoReader || 0x8000000000000060 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
 
|-
Creates regular savedata.
| 0xC || CanOpenSaveDataInfoReaderForSystem || 0x8000000000004020 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
 
|-
== CreateSaveDataFileSystemBySystemSaveDataId ==
| ([1.0.0-5.1.0] 0xD) || || 0x8000000000020000 ||
Takes a 0x40-byte Save-struct entry and a 0x40-byte SaveCreate-struct entry.
|-
 
| 0xD || CanOpenSaveDataInfoReaderForInternal || 0x8000000000000040 || [[#OpenSaveDataInfoReaderWithFilter]]
Creates savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
|-
 
| ([1.0.0-5.1.0] 0xE) || || 0x8000000000000400 ||
== OpenGameCardStorage ==
|-
Takes two input u32s (gamecard handle, partition ID), and returns an [[#IStorage]] for the [[Gamecard_Format|partition]].
| 0xE || CanOpenSaveDataMetaFile || 0x8000000000020000 || OpenSaveDataMetaFile
 
|-
== OpenGameCardFileSystem ==
| ([1.0.0-5.1.0] 0xF) || || 0x8000000000004060 ||
Takes two input u32s, with the second u32 located at +4 in rawdata after the first u32. Returns an [[#IFileSystem]].
|-
 
| 0xF || CanSetCurrentPosixTime || 0x8000000000000400 || SetCurrentPosixTime, SetCurrentPosixTimeWithTimeDifference
Mounts a [[Gamecard_Partition|gamecard partition]].
|-
 
| ([1.0.0-5.1.0] 0x10) || || 0x8000000000080000 ||
== OpenSaveDataFileSystem ==
|-
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte Save-struct entry. Official user-process code is only known to use value 1 for the u8.
| 0x10 || CanReadSaveDataFileSystemExtraData || 0x8000000000004060 || [[#ReadSaveDataFileSystemExtraData]]
 
|-
Returns an [[#IFileSystem]].
| 0x11 || CanSetGlobalAccessLogMode || 0x8000000000080000 || [[#SetGlobalAccessLogMode]]
 
|-
Permissions aren't checked until the specified save is successfully found.
| ([1.0.0-5.1.0] 0x12) || CanDebug || 0xC000000000000000 ||
 
|-
Only one process (specifically only one [[#IFileSystem]] session) can mount a given savedata at any given time (this includes SystemSaveData).
| 0x12 || CanSetSpeedEmulationMode || 0x8000000000080000 || SetSpeedEmulationMode
 
|-
== OpenSaveDataFileSystemBySystemSaveDataId ==
| ([1.0.0-5.1.0] 0x13) || || 0xC000000000800000 ||
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte Save-struct entry. Web-applet only uses value0 for the input u8.
|-
 
| 0x13 || CanDebug || 0xC000000000000000 ||
Returns an [[#IFileSystem]].
|-
 
| ([1.0.0-5.1.0] 0x14) || || 0xC000000001000000 ||
Mounts savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
|-
 
| 0x14 || CanFillBis || 0xC000000000800000 || CreatePaddingFile, DeleteAllPaddingFiles
== ReadSaveDataFileSystemExtraDataBySaveDataSpaceId ==
|-
Takes an input u8 [[#SaveDataSpaceId]], an input u64 saveID, and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].
| ([1.0.0-4.1.0] 0x15) || || 0xC000000002000000 ||
 
|-
== ReadSaveDataFileSystemExtraData ==
| ([5.0.0-5.1.0] 0x15) || || 0x8000000001000060 ||
Takes an input u64 saveID and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].
|-
 
| 0x15 || CanCorruptSaveData || 0xC000000001000000 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
== OpenSaveDataInfoReader ==
|-
No input, returns an output [[#ISaveDataInfoReader]].
| ([2.0.0-4.1.0] 0x16) || || 0x8000000004000000 ||
 
|-
== OpenSaveDataInfoReaderBySaveDataSpaceId ==
| ([5.0.0-5.1.0] 0x16) || || 0x8000000000000060 ||
Takes an input u8 [[#SaveDataSpaceId]], returns an output [[#ISaveDataInfoReader]].
|-
 
| [2.0.0+] 0x16 || CanCorruptSystemSaveData || 0x8000000001000060 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
== OpenContentStorageFileSystem ==
|-
Takes a [[#ContentStorageId]]. Invalid values return 0x2EE202.
| ([2.0.0-4.1.0] 0x17) || || 0x8000000008000000 ||
 
|-
Returns an [[#IFileSystem]] with NCA files. The read data from these files is identical to the data read by [[NCM_services#ReadContentIdFile]].
| ([5.0.0-5.1.0] 0x17) || || 0xC000000002000000 ||
 
|-
== OpenCustomStorageFileSystem ==
| [2.0.0+] 0x17 || CanVerifySaveData || 0x8000000000000060 || [[#VerifySaveDataFileSystem]], VerifySaveDataFileSystemBySaveDataSpaceId
Takes a [[#CustomStorageId]]. Invalid values return 0x2EE202.
|-
 
| ([2.0.0-4.1.0] 0x18) || || 0x8000000010000000 ||
Returns an [[#IFileSystem]] from either User:/CustomStorage0 or Sdcard:/Nintendo/CustomStorage0. If on the SD card, an AesXtsFileSystem is created using a key source specifically for custom storage.
|-
 
| ([5.0.0-5.1.0] 0x18) || || 0x8000000004000000 ||
== OpenDataStorageByDataId ==
|-
Takes a [[#StorageId]] and a TitleID.
| [2.0.0+] 0x18 || CanDebugSaveData || 0xC000000002000000 || [[#CreateSaveDataFileSystem]], [[#OpenSaveDataFileSystem]], [[#SetSaveDataRootPath]]
 
|-
Returns a [[IPC_Marshalling#Domain_message|domain object ID]] implementing the [[#IStorage]] interface for data archives.
| ([2.0.0-4.1.0] 0x19) || || 0x8000000000000800 ||
 
|-
== OpenDeviceOperator ==
| ([5.0.0-5.1.0] 0x19) || || 0x8000000008000000 ||
This command returns a session to a port implementing the [[#IDeviceOperator]] interface.
|-
 
| [2.0.0+] 0x19 || CanFormatSdCard || 0x8000000004000000 || FormatSdCardFileSystem
== OpenSdCardDetectionEventNotifier ==
|-
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
| ([2.0.0-4.1.0] 0x1A) || || 0x8000000000004020 ||
 
|-
== OpenGameCardDetectionEventNotifier ==
| ([5.0.0-5.1.0] 0x1A) || || 0x8000000010000000 ||
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
|-
 
| [2.0.0+] 0x1A || CanGetRightsId || 0x8000000008000000 || GetRightsId, GetRightsIdAndKeyGenerationByPath, GetRightsIdByPath
== VerifySaveDataFileSystem ==
|-
Takes an unknown input u64 and a type-0x6 output buffer.
| ([3.0.0-4.1.0] 0x1B) || || 0x8000000000002020 ||
 
|-
The input u64 high-byte must be non-zero, otherwise an [[Error_codes|error]] is returned(0xE02).
| ([5.0.0-5.1.0] 0x1B) || || 0x8000000000000800 ||
 
|-
== GetSaveDataCommitId ==
| [3.0.0+] 0x1B || CanRegisterExternalKey || 0x8000000010000000 || RegisterExternalKey, UnregisterAllExternalKey
Takes an input u8 and u64, returns an output u64.
|-
 
| ([3.0.0-4.1.0] 0x1C) || || 0x8000000000000028 ||
== SetSdCardEncryptionSeed ==
|-
Takes in the 0x10 byte SD card encryption seed, and loads it into FS-module state.
| ([5.0.0-5.1.0] 0x1C) || || 0x8000000000004020 ||
 
|-
[[NS_Services|NS]]-module reads the 0x10 bytes from SdCard:/Nintendo/Contents/private, and compares them to the first 0x10 bytes of the ns_appman:/private (in [[Flash_Filesystem#System_Savegames|system savedata]] 0x8000000000000043). If they match, NS calls this command using bytes 0x10-0x20 from ns_appman:/private. The rest of this file (0x1F0 bytes total) is (usually/always?) all-zero (however in some cases the byte at offset 0x20 is value 0x1).
| [3.0.0+] 0x1C || CanSetEncryptionSeed || 0x8000000000000800 || [[#SetSdCardEncryptionSeed]]
 
|-
== OpenAccessFailureResolver ==
| ([4.0.0-4.1.0] 0x1D) || || 0x8000000020000000 ||
Takes 8-bytes of input and returns an [[#IEventNotifier]].
|-
 
| ([5.0.0-5.1.0] 0x1D) || || 0x8000000000000000 ||
[8.0.0+] Now takes an additional 8-bytes of input.
|-
 
| [4.0.0+] 0x1D || CanWriteSaveDataFileSystemExtraDataTimeStamp || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
== SetSaveDataSize ==
|-
Takes two input u64s "size" and "journal_size", and writes them to fsp-srv object member variables.
| ([4.0.0-4.1.0] 0x1E) || || 0x8000000040000000 ||
 
|-
These variables are normally initialized with 32 MiB (0x2000000) and 16 MiB (0x1000000), respectively.
| ([5.0.0-5.1.0] 0x1E) || || 0x8000000000002020 ||
 
|-
These variables don't seem to be actually used anywhere else (?)
| [4.0.0+] 0x1E || CanWriteSaveDataFileSystemExtraDataFlags || 0x8000000000004020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
 
|-
== SetSaveDataRootPath ==
| ([4.0.0-4.1.0] 0x1F) || || 0x8000000000000000 ||
Takes an input path, and does snprintf(<fsp-srv object>->m_save_data_root_path, FS_MAX_PATH-1, "/%s", input_path);
|-
 
| ([5.0.0-5.1.0] 0x1F) || || 0x8000000000000028 ||
This path is normally all-zero. When this path is non-zero, the internal OpenSaveDataFileSystem function will create a DirectorySaveDataFileSystem if the target save is a user-save + a directory exists, instead of the normal savedata filesystem object.
|-
 
| [4.0.0+] 0x1F || CanWriteSaveDataFileSystemExtraDataCommitId || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
== SetGlobalAccessLogMode ==
|-
Takes an input u32.
| ([4.0.0-4.1.0] 0x20) || || 0x8000000000000000 ||
 
|-
== SetGlobalAccessLogMode ==
| ([5.0.0-5.1.0] 0x20) || || 0x8000000020000000 ||
Takes an input u32.
|-
 
| [4.0.0+] 0x20 || CanWriteSaveDataFileSystemExtraDataAll || 0x8000000000000000 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
== GetGlobalAccessLogMode ==
|-
Returns an output u32.
| ([5.0.0-5.1.0] 0x21) || || 0x8000000040000000 ||
 
|-
GlobalAccessLogMode is normally 0.
| [5.0.0+] 0x21 || CanExtendSaveData || 0x8000000000002020 || ExtendSaveDataFileSystem
 
|-
== OutputAccessLogToSdCard ==
| ([5.0.0-5.1.0] 0x22) || || 0x0000000080000002 ||
Takes a type-0x5 input buffer.
|-
 
| [5.0.0+] 0x22 || CanExtendSystemSaveData || 0x8000000000000028 || ExtendSaveDataFileSystem
The input buffer is the string to output to the log. User-processes normally include a newline at the end.
|-
 
| ([5.0.0-5.1.0] 0x23) || || 0x8000000000000000 ||
User-processes only use this when the value previously loaded from [[#GetGlobalAccessLogMode]] has bit1 set.
|-
 
| ([6.0.0-9.2.0] 0x23) || || 0x8000000020000000 ||
When bit1 in GlobalAccessLogMode is clear, FS-module will just return 0 for OutputAccessLogToSdCard. However even with that set the log doesn't show up SD, unknown why.
|-
 
| [5.0.0+] 0x23 || CanExtendOthersSystemSaveData || 0x8000000000000020 || ExtendSaveDataFileSystem
The input buffer is written to the "$FsAccessLog:/FsAccessLog.txt" file, where "$FsAccessLog" is the SD-card mount-name. It's written to the current end of the file(appended).
|-
 
| ([5.0.0-5.1.0] 0x24) || || 0x8000000000000000 ||
= IStorage =
|-
This is "nn::fssrv::sf::IStorage".
| ([6.0.0-9.2.0] 0x24) || || 0x8000000040000000 ||
 
|-
This is the interface for a raw device, usually a block device.
| [5.0.0+] 0x24 || CanRegisterUpdatePartition || 0x8000000020000000 || RegisterUpdatePartition
 
|-
{| class="wikitable" border="1"
| ([5.0.0-5.1.0] 0x25) || || 0x8000000080200000 ||
|-
| ([6.0.0-9.2.0] 0x25) || || 0x8000000200000000 ||
|-
| [5.0.0+] 0x25 || CanOpenSaveDataTransferManager || 0x8000000040000000 || [[#OpenSaveDataTransferManager]]
|-
| ([5.0.0-5.1.0] 0x26) || || 0x8000000080000110 ||
|-
| ([6.0.0-8.1.0] 0x26) || || 0x8000000200002000 ||
|-
| ([9.0.0-9.2.0] 0x26) || || 0x8000000200000000 ||
|-
| [5.0.0+] 0x26 || CanOpenSaveDataTransferManagerVersion2 || 0x8000000200000000 || [[#OpenSaveDataTransferManagerVersion2]]
|-
| ([5.0.0-5.1.0] 0x27) || || 0x8000000000100008 ||
|-
| ([6.0.0-7.0.1] 0x27) || || 0x8000000200002000 ||
|-
| ([8.0.0-8.1.0] 0x27) || || 0x8000000240002000 ||
|-
| ([9.0.0-9.2.0] 0x27) || || 0x8000000000000000 ||
|-
| [5.0.0+] 0x27 || CanOpenSaveDataTransferManagerForSaveDataRepair || 0x8000000200000000 || OpenSaveDataTransferManagerForSaveDataRepair
|-
| ([5.0.0-5.1.0] 0x28) || || 0x8000000080010000 ||
|-
| ([6.0.0-8.1.0] 0x28) || || 0x8000000000000000 ||
|-
| ([9.0.0-9.2.0] 0x28) || || 0x8000000200002000 ||
|-
| [5.0.0+] 0x28 || CanOpenSaveDataTransferManagerForSaveDataRepairTool || 0x8000000000000000 || OpenSaveDataTransferManagerForSaveDataRepair
|-
| ([5.0.0-5.1.0] 0x29) || || 0x0000000080000001 ||
|-
| ([6.0.0-8.1.0] 0x29) || || 0x8000000000000000 ||
|-
| ([9.0.0-9.2.0] 0x29) || || 0x8000000240002000 ||
|-
| [5.0.0+] 0x29 || CanOpenOpenSaveDataTransferProhibiter || 0x8000000200002000 || [[#OpenSaveDataTransferProhibiter]]
|-
| ([5.0.0-5.1.0] 0x2A) || || 0x0000000080000001 ||
|-
| ([6.0.0-8.1.0] 0x2A) || || 0x8000000080200000 ||
|-
| ([9.0.0-9.2.0] 0x2A) || || 0x8000000000000000 ||
|-
| [5.0.0+] 0x2A || CanOpenSaveDataMover || 0x8000001000000000 || [[#OpenSaveDataMover]]
|-
| ([5.0.0-5.1.0] 0x2B) || || 0x0000000080000001 ||
|-
| ([6.0.0-8.1.0] 0x2B) || || 0x8000000080000110 ||
|-
| ([9.0.0-9.2.0] 0x2B) || || 0x8000000000000000 ||
|-
| [5.0.0+] 0x2B || CanOpenBisWiper || 0x8000000000000800 || [[#OpenBisWiper]]
|-
| ([5.0.0-5.1.0] 0x2C) || || 0x0000000080000001 ||
|-
| ([6.0.0-8.1.0] 0x2C) || || 0x8000000000100008 ||
|-
| ([9.0.0-9.2.0] 0x2C) || || 0x8000000080200000 ||
|-
| [5.0.0+] 0x2C || CanListAccessibleSaveDataOwnerId || 0x8000000240002000 || [[#ListAccessibleSaveDataOwnerId]]
|-
| ([5.0.0-5.1.0] 0x2D) || || 0x0000000080000001 ||
|-
| ([6.0.0-8.1.0] 0x2D) || || 0x8000000000010000 ||
|-
| ([9.0.0-9.2.0] 0x2D) || || 0x8000000080000110 ||
|-
| [5.0.0+] 0x2D || CanControlMmcPatrol || 0x8000000000000000 || SuspendMmcPatrol, ResumeMmcPatrol
|-
| ([5.0.0-5.1.0] 0x2E) || || 0x8000000040000000 ||
|-
| ([6.0.0-8.1.0] 0x2E) || || 0x8000000100000000 ||
|-
| ([9.0.0-9.2.0] 0x2E) || || 0x8000000000100008 ||
|-
| [5.0.0+] 0x2E || CanOverrideSaveDataTransferTokenSignVerificationKey || 0x8000000000000000 || OverrideSaveDataTransferTokenSignVerificationKey
|-
| ([5.0.0-5.1.0] 0x2F) || || 0x8000000080200000 ||
|-
| ([6.0.0-8.1.0] 0x2F) || || 0x8000000100000000 ||
|-
| ([9.0.0-9.2.0] 0x2F) || || 0x8000000000010000 ||
|-
| [5.0.0+] 0x2F || CanOpenSdCardDetectionEventNotifier || 0x8000000080200000 || [[#OpenSdCardDetectionEventNotifier]]
|-
| ([5.1.0-6.0.0] 0x30) || || 0x8000000080080000 ||
|-
| ([6.0.1-9.2.0] 0x30) || || 0x8000000100000000 ||
|-
| [5.1.0+] 0x30 || CanOpenGameCardDetectionEventNotifier || 0x8000000080000110 || [[#OpenGameCardDetectionEventNotifier]]
|-
| ([6.0.0-9.2.0] 0x31) || || 0x8000000100000000 ||
|-
| [6.0.0+] 0x31 || CanOpenSystemDataUpdateEventNotifier || 0x8000000000100008 || OpenSystemDataUpdateEventNotifier
|-
| ([6.0.0-9.2.0] 0x32) || || 0x8000000100000000 ||
|-
| [6.0.0+] 0x32 || CanNotifySystemDataUpdateEvent || 0x8000000000010000 || NotifySystemDataUpdateEvent
|-
| ([6.0.0-8.1.0] 0x33) || || 0x8000000040000000 ||
|-
| ([9.0.0-9.2.0] 0x33) || || 0x8000000100000000 ||
|-
| [6.0.0+] 0x33 || CanOpenAccessFailureDetectionEventNotifier || 0x8000000100000000 || [[#OpenAccessFailureDetectionEventNotifier]]
|-
| ([6.0.0-8.1.0] 0x34) || || 0x8000000200000020 ||
|-
| ([9.0.0-9.2.0] 0x34) || || 0x8000000100000000 ||
|-
| [6.0.0+] 0x34 || CanGetAccessFailureDetectionEvent || 0x8000000100000000 || GetAccessFailureDetectionEvent
|-
| ([6.0.0-8.1.0] 0x35) || || 0x8000000000200000 ||
|-
| ([9.0.0-9.2.0] 0x35) || || 0x8000000040000000 ||
|-
|-
! Cmd || Name || Arguments
| [6.0.0+] 0x35 || CanIsAccessFailureDetected || 0x8000000100000000 || IsAccessFailureDetected
|-
|-
| 0 || Read || Takes a type-0x46 buffer, an offset and length
| ([6.0.0-8.1.0] 0x36) || || 0x4000000000000000 ||
|-
|-
| 1 || Write || Takes a type-0x45 buffer, an offset and length
| ([9.0.0-9.2.0] 0x36) || || 0x8000000200000020 ||
|-
|-
| 2 || Flush || None
| [6.0.0+] 0x36 || CanResolveAccessFailure || 0x8000000100000000 || ResolveAccessFailure
|-
|-
| 3 || SetSize || Takes a size
| ([6.0.0-6.2.0] 0x37) || || 0x8000000000080000 ||
|-
|-
| 4 || GetSize || None
| ([7.0.0-8.1.0] 0x37) || || 0x8000000000000000 ||
|-
|-
| 5 || [4.0.0+] OperateRange ||
| ([9.0.0-9.2.0] 0x37) || || 0x8000000000200000 ||
|}
|-
 
| [6.0.0+] 0x37 || CanAbandonAccessFailure || 0x8000000100000000 || AbandonAccessFailure
= IFileSystem =
|-
This is "nn::fssrv::sf::IFileSystem".
| ([6.0.0-6.2.0] 0x38) || || 0x8000000000000000 ||
 
|-
There are two main implementations of this interface:
| ([7.0.0-8.1.0] 0x38) || || 0x8000000400000000 ||
 
* '''RomFS''': Filesystem implementation statically linked in the binary. Uses an [[#IStorage]] interface as underlying raw device.
* '''IPC proxy''': Used for all non-RomFS filesystems. In this case, actual filesystem implementation is in the FS process.
 
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| ([9.0.0-9.2.0] 0x38) || || 0x4000000000000000 ||
|-
|-
| 0 || CreateFile
| [6.0.0+] 0x38 || CanQuerySaveDataInternalStorageTotalSize || 0x8000000040000000 || QuerySaveDataInternalStorageTotalSize
|-
|-
| 1 || DeleteFile
| ([8.0.0-8.1.0] 0x39) || || 0x8000000000000010 ||
|-
|-
| 2 || CreateDirectory
| ([9.0.0-9.2.0] 0x39) || || 0x8000000000000000 ||
|-
|-
| 3 || DeleteDirectory
| [8.0.0+] 0x39 || CanGetSaveDataCommitId || 0x8000000200000020 || [[#GetSaveDataCommitId]]
|-
|-
| 4 || DeleteDirectoryRecursively
| ([9.0.0-9.2.0] 0x3A) || || 0x8000000400000000 ||
|-
|-
| 5 || RenameFile
| [9.0.0+] 0x3A || CanSetSdCardAccessibility || 0x8000000000200000 || SetSdCardAccessibility
|-
|-
| 6 || RenameDirectory
| ([9.0.0-9.2.0] 0x3B) || || 0x8000000000000010 ||
|-
|-
| 7 || [[#GetEntryType]]
| [9.0.0+] 0x3B || CanSimulateDevice || 0x4000000000000000 || SimulateDeviceDetectionEvent, SetSimulationEvent, ClearSimulationEvent
|-
|-
| 8 || [[#OpenFile]]
| ([9.0.0-9.2.0] 0x3C) || || 0x8000000800000000 ||
|-
|-
| 9 || [[#OpenDirectory]]
| [9.0.0+] 0x3C || CanCreateSaveDataWithHashSalt || 0x8000000000000000 || [[#CreateSaveDataFileSystem]], [[#CreateSaveDataFileSystemWithHashSalt]]
|-
|-
| 10 || [[#Commit]]
| ([9.0.0-9.2.0] 0x3D) || || 0x8000000800000000 ||
|-
|-
| 11 || [[#GetFreeSpaceSize]]
| [9.0.0+] 0x3D || CanRegisterProgramIndexMapInfo || 0x8000000400000000 || RegisterProgramIndexMapInfo
|-
|-
| 12 || [[#GetTotalSpaceSize]]
| ([9.0.0-9.2.0] 0x3E) || || 0x8000000800000000 ||
|-
|-
| 13 || [3.0.0+] [[#CleanDirectoryRecursively]]
| [9.0.0+] 0x3E || CanChallengeCardExistence || 0x8000000000000010 || ChallengeCardExistence
|-
|-
| 14 || [3.0.0+] [[#GetFileTimeStampRaw]]
| ([9.0.0-9.2.0] 0x3F) || || 0x8000000800000000 ||
|-
|-
| 15 || [4.0.0+] QueryEntry
| [9.0.0+] 0x3F || CanCreateOwnSaveData || 0x8000000800000000 || [[#CreateSaveDataFileSystem]], CreateSaveDataFileSystemWithHashSalt
|}
|-
| ([9.0.0-9.2.0] 0x40) || || 0x8000000800000000 ||
|-
| ([10.0.0-10.1.1] 0x40) || || 0x8000000800000000 ||
|-
| [9.0.0+] 0x40 || CanDeleteOwnSaveData || 0x8000000800000000 || [[#DeleteSaveDataFileSystem]]
|-
| ([9.0.0-10.1.1] 0x41) || || 0x8000000800000000 ||
|-
| [9.0.0+] 0x41 || CanReadOwnSaveDataFileSystemExtraData || 0x8000000800000000 || [[#ReadSaveDataFileSystemExtraData]]
|-
| ([10.0.0-10.1.1] 0x42) || || 0x8000000800000000 ||
|-
| [10.0.0+] 0x42 || CanExtendOwnSaveData || 0x8000000800000000 || ExtendSaveDataFileSystem
|-
| ([10.0.0-10.1.1] 0x43) || || 0x8000000800000000 ||
|-
| [10.0.0+] 0x43 || CanOpenOwnSaveDataTransferProhibiter || 0x8000000800000000 || [[#OpenSaveDataTransferProhibiter]]
|-
| [10.2.0+] 0x44 || CanFindOwnSaveDataWithFilter || 0x8000000800000000 || [[#FindSaveDataWithFilter]]
|}


== GetEntryType ==
== OpenFileSystem ==
Takes a type-0x9 input buffer for the path and returns [[#DirectoryEntryType]] as an output u32.
Takes a type-0x19 input [[#ContentPath]] and a [[#FileSystemProxyType]] as parameters. Returns an [[#IFileSystem]].


== OpenFile ==
[2.0.0+] This function was removed.
Takes a type-0x19 input buffer for the path, and an u32 '''mode'''. '''mode''' controls how the file is opened, based on which bits are set:


* When bit 0 is set, the file is Readable: you can use the Read operation.
== SetCurrentProcess ==
* When bit 1 is set, the file is Writable: you can use the Write operation.
Takes a pid-descriptor.
* When bit 2 is set, the file is Appendable: unless this bit is set, you will not be able to write beyond the end of a file (such writes will result in an error 0x307202)


== OpenDirectory ==
== OpenFileSystemWithPatch ==
Takes a type-0x9 input buffer for the path and an u64 '''filter_flags'''. '''filter_flags''' controls what type of entries are read by the [[#IDirectory]]: bitmask 0x1 = directories, bitmask 0x2 = files.
Takes an input [[#FileSystemProxyType]] and an u64 title-id. Returns an [[#IFileSystem]].


== Commit ==
Web-applet loads the [[#FileSystemProxyType]] (which must be '''Manual''') from u32_table[inparam].
Like [https://3dbrew.org/wiki/FS:ControlArchive 3DS], this has to be used after writing to savedata for the changes to take affect.


== GetFreeSpaceSize ==
Note: web-applet strings refer to both this cmd and [[#OpenFileSystemWithId]] as "MountContent", but official nn_sf_sync symbols use "OpenXX" names.
Takes a type-0x9 input buffer for the path and returns an output byte-size u64 for the total free space with this FS.


== GetTotalSpaceSize ==
== OpenFileSystemWithId ==
Takes a type-0x9 input buffer for the path and returns an output byte-size u64 for the total space available with this FS(free+used).
Takes a type-0x19 input buffer, an [[#FileSystemProxyType]] and an u64 title-id. Returns an [[#IFileSystem]].


== CleanDirectoryRecursively ==
The [[#IFileSystem]] must be '''Meta''' if the NCA type is 0.
Takes a type-0x9 input buffer for the path and clears the contents of the directory specified in the path.


== GetFileTimeStampRaw ==
The input buffer is the output string path from [[NS_Services#GetApplicationContentPath|GetApplicationContentPath]].
Takes a type-0x19 input buffer for the path and returns a 0x20-byte struct. This contains 3 u64s and an u8.


= IDirectory =
May return errors when attempting to access NCA-paths for an update-title with a gamecard, when the gamecard isn't inserted. May return error 0x7D402 in some cases with update-titles. Non-val2 in32 values with NCA-type1 are unusable, even for normal titles.
This is "nn::fssrv::sf::IDirectory".


{| class="wikitable" border="1"
The official "MountApplicationPackage" func uses this with in64=0 and [[#FileSystemProxyType]] '''Package'''.
|-
! Cmd || Name
|-
| 0 || [[#Read]]
|-
| 1 || [[#GetEntryCount]]
|}


== Read ==
After the [[#FileSystemProxyType]] specific permissions are checked, it then gets the func retval for permissions-type 0x25 and func0.
Takes a type-0x6 output buffer. Returns an output u64(?) for the total number of read entries, this is 0 when no more entries are available.


The output buffer contains the read array of [[#DirectoryEntry]]. This doesn't include entries for "." and "..".
When [[#FileSystemProxyType]] is '''Meta''', it uses in64=0xffffffffffffffff internally, otherwise it checks if in64 is set to 0xffffffffffffffff then throws an error if so. When the in64 used internally is not 0xffffffffffffffff, it's compared with the NCA [[NCM_services#ProgramId|ProgramId]], then an error is thrown on mismatch.


== GetEntryCount ==
== OpenBisFileSystem ==
Returns an u64 for the total number of readable entries.
Takes a type-0x19 input buffer string and a [[#BisPartitionId]]. Official user-process code sets instr[0] = 0 normally. Returns an [[#IFileSystem]].


= DirectoryEntry =
Only partitionIDs for FAT partitions are usable with this, otherwise error 0x2EE202 is returned. Seems to be about the same as [[#OpenBisStorage]] except this mounts the partition filesystem instead of allowing direct access to the partition sectors.
This is "nn::fs::DirectoryEntry".


{| class="wikitable" border="1"
== OpenBisStorage ==
|-
Takes a u32 partition ID, returns 0x2EE202 for partitions which do not exist, 0x320002 for partitions which cannot be opened and a valid [[#IStorage]] handle otherwise.
! Offset || Size || Description
|-
| 0x0 || 0x301 || Path
|-
| 0x301 || 0x1 || File attributes (bit 0 = is directory; bit 1 = archive bit)
|-
| 0x302 || 0x2 || Padding?
|-
| 0x304 || 0x1 || [[#DirectoryEntryType]]
|-
| 0x305 || 0x3 || Padding?
|-
| 0x308 || 0x8 || Filesize, 0 for directories.
|}


= DirectoryEntryType =
== InvalidateBisCache ==
This is "nn::fs::DirectoryEntryType".
Seems to invalidate the Bis cache for MBR/GPT after overwriting that data via the OpenBisStorage IStorage. Used by [[SystemInitializer]].


An s8 value indicating a directory entry type. The current values are:
== DeleteSaveDataFileSystem ==
Takes an input u64.
 
== CreateSaveDataFileSystem ==
Takes a 0x40-byte [[#SaveDataAttribute]], a 0x40-byte [[#SaveDataCreationInfo]], and a 0x10-byte input struct which governs creation of a saveMeta file.
 
Only the first 0x5-bytes in the 0x10-byte struct are initialized: all-zero when automatically creating savedata during savecommon mount by official user-processes. In the dedicated save-creation code in official user-processes: +0 u32 = 0x40060 meta file size, +4 u8 = 1 meta index which dictates meta file name.
 
Creates non-system savedata.


{| class="wikitable" border="1"
== CreateSaveDataFileSystemBySystemSaveDataId ==
|-
Takes a 0x40-byte [[#SaveDataAttribute]] and a 0x40-byte [[#SaveDataCreationInfo]].
! Value || Description
|-
| 0 || Directory
|-
| 1 || File
|}


= IFile =
Creates savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
This is "nn::fssrv::sf::IFile".


{| class="wikitable" border="1"
== OpenGameCardStorage ==
|-
Takes two input u32s (gamecard handle, partition ID), and returns an [[#IStorage]] for the [[Gamecard_Format|partition]].
! Cmd || Name
|-
| 0 || Read
|-
| 1 || Write
|-
| 2 || Flush
|-
| 3 || SetSize
|-
| 4 || GetSize
|-
| 5 || [4.0.0+] OperateRange
|}


= ISaveDataInfoReader =
== OpenGameCardFileSystem ==
This is "nn::fssrv::sf::ISaveDataInfoReader".
Takes two input u32s, with the second u32 located at +4 in rawdata after the first u32. Returns an [[#IFileSystem]].


{| class="wikitable" border="1"
Mounts a [[Gamecard_Partition|gamecard partition]].
|-
! Cmd || Name
|-
| 0 || [[#ReadSaveDataInfo]]
|}


== ReadSaveDataInfo ==
== CreateSaveDataFileSystemWithHashSalt ==
Takes a type-0x6 output buffer. Returns an output u64 for total output entries. This buffer contains an array of [[#SaveDataInfo]].
Takes a total of 0xB0-bytes of input, no output.


This is used to get [[#SaveDataInfo]] for all savedata on the system (or all savedata for the current [[#SaveDataSpaceId]]). When used multiple times, it will resume reading where it left off, until no more entries are available (in that case the out u64 is value 0).
== OpenSaveDataFileSystem ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]]. Official user-process code is only known to use value 1 for the u8.


= IDeviceOperator =
Returns an [[#IFileSystem]].
This is "nn::fssrv::sf::IDeviceOperator".


{| class="wikitable" border="1"
Permissions aren't checked until the specified save is successfully found.
|-
 
! Cmd || Name
Only one process (specifically only one [[#IFileSystem]] session) can mount a given savedata at any given time (this includes SystemSaveData).
|-
 
| 0 || IsSdCardInserted
== OpenSaveDataFileSystemBySystemSaveDataId ==
|-
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]]. Web-applet only uses value0 for the input u8.
| 1 || GetSdCardSpeedMode
 
|-
Returns an [[#IFileSystem]].
| 2 || [2.0.0+] GetSdCardCid
 
|-
Mounts savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
| 3 || [2.0.0+] GetSdCardUserAreaSize
 
|-
== OpenReadOnlySaveDataFileSystem ==
| 4 || [2.0.0+] GetSdCardProtectedAreaSize
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]], and returns an [[#IFileSystem]].
|-
 
| 5 || [2.0.0+] GetAndClearSdCardErrorInfo
Mounts SaveData as ReadOnly.
|-
 
| 100 || GetMmcCid
== ReadSaveDataFileSystemExtraDataBySaveDataSpaceId ==
|-
Takes an input u8 [[#SaveDataSpaceId]], an input u64 saveID, and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].
| 101 || GetMmcSpeedMode
 
|-
== ReadSaveDataFileSystemExtraData ==
| 110 || EraseMmc
Takes an input u64 saveID and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].
|-
 
| 111 || GetMmcPartitionSize
== OpenSaveDataInfoReader ==
|-
No input, returns an output [[#ISaveDataInfoReader]].
| 112 || [2.0.0+] GetMmcPatrolCount
 
|-
== OpenSaveDataInfoReaderBySaveDataSpaceId ==
| 113 || [2.0.0+] GetAndClearMmcErrorInfo
Takes an input u8 [[#SaveDataSpaceId]], returns an output [[#ISaveDataInfoReader]].
|-
 
| 114 || [2.0.0+] GetMmcExtendedCsd
== FindSaveDataWithFilter ==
|-
Takes a total of 0x50-bytes of input, returns 8-bytes of output and a type-0x6 output buffer.
| 115 || [4.0.0+] SuspendMmcPatrol
 
|-
== OpenSaveDataInfoReaderWithFilter ==
| 116 || [4.0.0+] ResumeMmcPatrol
Takes a total of 0x50-bytes of input, returns an [[#ISaveDataInfoReader]].
|-
 
| 200 || IsGameCardInserted
== OpenSaveDataTransferManager ==
|-
No input, returns an [[#ISaveDataTransferManager]].
| 201 || EraseGameCard
 
|-
== OpenSaveDataTransferManagerVersion2 ==
| 202 || GetGameCardHandle
No input, returns an [[#ISaveDataTransferManagerWithDivision]].
|-
 
| 203 || [[#GetGameCardUpdatePartitionInfo]]
== OpenSaveDataTransferProhibiter ==
|-
Takes an input u64, returns an [[#ISaveDataTransferProhibiter]].
| 204 || FinalizeGameCardDriver
 
|-
== ListAccessibleSaveDataOwnerId ==
| 205 || GetGameCardAttribute
Takes a total of 0x10-bytes of input, returns 4-bytes of output and a type-0x6 output buffer.
|-
 
| 206 || GetGameCardDeviceCertificate
== OpenSaveDataTransferManagerForSaveDataRepair ==
|-
No input, returns an output [[#ISaveDataTransferManagerForSaveDataRepair]].
| 207 || GetGameCardAsicInfo
 
|-
== OpenSaveDataMover ==
| 208 || GetGameCardIdSet
Takes 2 input [[#SaveDataSpaceId]], an input u64 size and a TransferMemory handle. Returns an output [[#ISaveDataMover]].
|-
 
| 209 || WriteToGameCard
== OpenContentStorageFileSystem ==
|-
Takes a [[#ContentStorageId]]. Invalid values return 0x2EE202.
| 210 || SetVerifyWriteEnalbleFlag
 
|-
Returns an [[#IFileSystem]] with NCA files. The read data from these files is identical to the data read by [[NCM_services#ReadContentIdFile]].
| 211 || GetGameCardImageHash
 
|-
== OpenCloudBackupWorkStorageFileSystem ==
| 212 || [2.0.0+] GetGameCardDeviceIdForProdCard
Takes 4-bytes of input, returns an [[#IFileSystem]].
|-
 
| 213 || [2.0.0+] EraseAndWriteParamDirectly
== OpenCustomStorageFileSystem ==
|-
Takes a [[#CustomStorageId]]. Invalid values return 0x2EE202.
| 214 || [2.0.0+] ReadParamDirectly
 
|-
Returns an [[#IFileSystem]] from either User:/CustomStorage0 or Sdcard:/Nintendo/CustomStorage0. If on the SD card, an AesXtsFileSystem is created using a key source specifically for custom storage.
| 215 || [2.0.0+] ForceEraseGameCard
 
|-
== OpenDataStorageByDataId ==
| 216 || [2.0.0+] GetGameCardErrorInfo
Takes a [[NCM_services#StorageId|StorageID]] and a [[NCM_services#DataId|DataId]].
|-
 
| 217 || [2.1.0+] GetGameCardErrorReportInfo
Returns a [[IPC_Marshalling#Domain_message|domain object ID]] implementing the [[#IStorage]] interface for data archives.
|-
 
| 218 || [3.0.0+] GetGameCardDeviceId
== OpenDataFileSystemWithProgramIndex ==
|-
Takes an input u8, returns an [[#IFileSystem]].
| 219 || [8.0.0+] ChallengeCardExistence
 
|-
== OpenDataStorageWithProgramIndex ==
| 300 || SetSpeedEmulationMode
Takes an input u8, returns an [[#IStorage]].
|-
 
| 301 || GetSpeedEmulationMode
== OpenDeviceOperator ==
|-
This command returns a session to a port implementing the [[#IDeviceOperator]] interface.
| 400 || [5.0.0+] SuspendSdmmcControl
 
|-
== OpenSdCardDetectionEventNotifier ==
| 401 || [5.0.0+] ResumeSdmmcControl
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
|-
 
| 402 || [6.0.0+] GetSdmmcConnectionStatus (Takes a total of 4-bytes of input, returns a total of 8-bytes of output)
== OpenGameCardDetectionEventNotifier ==
|-
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
| 500 || [6.0.0+] SetSimulationEvent (Takes a total of 0x14-bytes of input, no output)
 
|-
== SimulateDeviceDetectionEvent ==
| 501 || [6.0.0+] ClearSimulationEvent (Takes a total of 4-bytes of input, no output)
Takes a total of 0xC-bytes of input, no output.
|}
 
== VerifySaveDataFileSystem ==
Takes an unknown input u64 and a type-0x6 output buffer.
 
The input u64 high-byte must be non-zero, otherwise an [[Error_codes|error]] is returned(0xE02).
 
== GetSaveDataCommitId ==
Takes an input u8 and u64, returns an output u64.
 
== SetSdCardEncryptionSeed ==
Takes in the 0x10 byte SD card encryption seed, and loads it into FS-module state.
 
[[NS_Services|NS]]-module reads the 0x10 bytes from SdCard:/Nintendo/Contents/private, and compares them to the first 0x10 bytes of the ns_appman:/private (in [[Flash_Filesystem#System_Savegames|system savedata]] 0x8000000000000043). If they match, NS calls this command using bytes 0x10-0x20 from ns_appman:/private. The rest of this file (0x1F0 bytes total) is (usually/always?) all-zero (however in some cases the byte at offset 0x20 is value 0x1).


== GetGameCardUpdatePartitionInfo ==
== OpenAccessFailureDetectionEventNotifier ==
Returns a titleID and the title-version for it.
Takes 8-bytes of input and returns an [[#IEventNotifier]].


* Output u32 with ARMS-gamecard: title-version v131162. This is the title-version for [[2.1.0]], which is the sysupdate included with this gamecard. Launch-day gamecards return title-version v450.
[8.0.0+] Now takes an additional 8-bytes of input.
* Output u64 with ARMS-gamecard: titleID 0100000000000816.


[[NS_Services|NS]] appears to only use this with [[Content_Manager_services#GetTitleIdInfo]] and [[Content_Manager_services#GetUpdateTitleList]] with storageid=nandsys, for checking whether a sysupdate is required.
== SetSaveDataSize ==
Takes two input u64s "size" and "journal_size", and writes them to fsp-srv object member variables.


= IEventNotifier =
These variables are normally initialized with 32 MiB (0x2000000) and 16 MiB (0x1000000), respectively.
This is "nn::fssrv::sf::IEventNotifier".


{| class="wikitable" border="1"
These variables don't seem to be actually used anywhere else (?)
|-
! Cmd || Name
|-
| 0 || GetEventHandle
|}


= ISaveDataTransferManager =
== SetSaveDataRootPath ==
This is "nn::fssrv::sf::ISaveDataTransferManager".
Takes an input path, and does snprintf(<fsp-srv object>->m_save_data_root_path, FS_MAX_PATH-1, "/%s", input_path);


{| class="wikitable" border="1"
This path is normally all-zero. When this path is non-zero, the internal OpenSaveDataFileSystem function will create a DirectorySaveDataFileSystem if the target save is a user-save + a directory exists, instead of the normal savedata filesystem object.
|-
! Cmd || Name
|-
| 0 || [[#GetChallenge]]
|-
| 16 || [[#SetToken]]
|-
| 32 || [[#OpenSaveDataExporter]]
|-
| 64 || [[#OpenSaveDataImporter]]
|}


This was added with [[4.0.0]].
== SetGlobalAccessLogMode ==
Takes an input u32.


== GetChallenge ==
== SetGlobalAccessLogMode ==
No input/output, takes a type-0x6 output buffer.
Takes an input u32.


== SetToken ==
== GetGlobalAccessLogMode ==
No input/output, takes a type-0x5 input buffer.
Returns an output u32.


== OpenSaveDataExporter ==
GlobalAccessLogMode is normally 0.
Takes an input u8 [[#SaveDataSpaceId]] and u64, returns an [[#ISaveDataExporter]].


== OpenSaveDataImporter ==
== OutputAccessLogToSdCard ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x10-byte userID, and a type-0x5 input buffer. Returns an output u64 and an [[#ISaveDataImporter]].
Takes a type-0x5 input buffer.


= ISaveDataExporter =
The input buffer is the string to output to the log. User-processes normally include a newline at the end.
This is "nn::fssrv::sf::ISaveDataExporter".


{| class="wikitable" border="1"
User-processes only use this when the value previously loaded from [[#GetGlobalAccessLogMode]] has bit1 set.
|-
! Cmd || Name
|-
| 0 || [[#Initialize]]
|-
| 1 || [[#GetRestSize]]
|-
| 16 || [[#Pull]]
|-
| 17 || [[#PullInitialData]]
|}


This was added with [[4.0.0]].
When bit1 in GlobalAccessLogMode is clear, FS-module will just return 0 for OutputAccessLogToSdCard. However even with that set the log doesn't show up SD, unknown why.


== Initialize ==
The input buffer is written to the "$FsAccessLog:/FsAccessLog.txt" file, where "$FsAccessLog" is the SD-card mount-name. It's written to the current end of the file(appended).
No input/output, takes a type-0x1A [[#SaveDataInfo]] output buffer.


The actual name for this is the SaveDataExporter constructor. This is used automatically after [[#OpenSaveDataExporter]] by official sw.
== GetProgramIndexForAccessLog ==
No input, returns two 32-bit values "version" and "program_index".


== GetRestSize ==
== OpenMultiCommitManager ==
No input, returns an output u64.
No input, returns an output [[#IMultiCommitManager]].


== Pull ==
== OpenBisWiper ==
Takes a type-0x6 output buffer, returns an output u64.
Takes an input u64 size and a TransferMemory handle. Returns an output [[#IWiper]].


== PullInitialData ==
= IStorage =
No input/output, takes a type-0x6 output buffer.
This is "nn::fssrv::sf::IStorage".


= ISaveDataImporter =
This is the interface for a raw device, usually a block device.
This is "nn::fssrv::sf::ISaveDataImporter".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 1,024: Line 1,164:
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || [[#Initialize]]
| 0 || [[#Read]]
|-
| 1 || [[#Write]]
|-
|-
| 1 || [[#GetRestSize]]
| 2 || [[#Flush]]
|-
| 3 || [[#SetSize]]
|-
|-
| 16 || [[#Push]]
| 4 || [[#GetSize]]
|-
|-
| 17 || [[#Finalize]]
| 5 || [4.0.0+] OperateRange
|}
|}


This was added with [[4.0.0]].
== Read ==
Takes a type-0x46 buffer, an offset and length.


== Initialize ==
== Write ==
No input/output, takes a type-0x1A [[#SaveDataInfo]] output buffer.
Takes a type-0x45 buffer, an offset and length.


The actual name for this is the SaveDataImporter constructor. This is used automatically after [[#OpenSaveDataImporter]] by official sw.
== Flush ==
No input.


== GetRestSize ==
== SetSize ==
No input, returns an output u64.
Takes a size.
 
== GetSize ==
Returns a size.
 
= IFileSystem =
This is "nn::fssrv::sf::IFileSystem".
 
There are two main implementations of this interface:
 
* '''nn::fs::fsa::IFileSystem''': The main IFileSystem implementation. Filesystem classes implement this interface, and FS code usually operates on this interface.
* '''nn::fssrv::sf::IFileSystem''': Used for sending an IFileSystem over IPC. Not used outside of IPC code.


== Push ==
There are two adapter classes to convert between these interfaces:
No input/output, takes a type-0x5 input buffer.


== Finalize ==
* '''nn::fssrv::detail::FileSystemInterfaceAdapter''': Allows access to an nn::fs::fsa::IFileSystem via the nn::fssrv::sf::IFileSystem interface.
No input/output.
* '''nn::fs::detail::FileSystemServiceObjectAdapter''': Allows access to an nn::fssrv::sf::IFileSystem via the nn::fs::fsa::IFileSystem interface.


= ISaveDataTransferManagerWithDivision =
When the FS process returns a filesystem, it will wrap the filesystem object in a FileSystemInterfaceAdapter to return it over IPC.
This is "nn::fssrv::sf::ISaveDataTransferManagerWithDivision".
Then when FS application code receives that filesystem, it will wrap the nn::fssrv::sf::IFileSystem object in a FileSystemServiceObjectAdapter before using it.


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 1,056: Line 1,212:
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || [[#GetChallenge]]
| 0 || CreateFile
|-
|-
| 16 || [[#SetKeySeedPackage]]
| 1 || DeleteFile
|-
|-
| 32 || [[#OpenSaveDataFullExporter]]
| 2 || CreateDirectory
|-
|-
| 33 || [[#OpenSaveDataDiffExporter]]
| 3 || DeleteDirectory
|-
|-
| 34 || [6.0.0+] [[#OpenSaveDataExporterByContext]]
| 4 || DeleteDirectoryRecursively
|-
|-
| 64 || [[#OpenSaveDataFullImporter]]
| 5 || RenameFile
|-
|-
| 65 || [[#OpenSaveDataDiffImporter]]
| 6 || RenameDirectory
|-
|-
| 66 || [6.0.0+] [[#OpenSaveDataDuplicateDiffImporter]]
| 7 || [[#GetEntryType]]
|-
|-
| 67 || [6.0.0+] [[#OpenSaveDataImporter]]
| 8 || [[#OpenFile]]
|-
| 9 || [[#OpenDirectory]]
|-
| 10 || [[#Commit]]
|-
| 11 || [[#GetFreeSpaceSize]]
|-
| 12 || [[#GetTotalSpaceSize]]
|-
| 13 || [3.0.0+] [[#CleanDirectoryRecursively]]
|-
|-
| 68 || [6.0.0+] [[#OpenSaveDataImporterByContext]]
| 14 || [3.0.0+] [[#GetFileTimeStampRaw]]
|-
|-
| 69 || [6.0.0+] [[#CancelSuspendingImport]]
| 15 || [4.0.0+] QueryEntry
|}
|}


This was added with [[5.0.0]].
== GetEntryType ==
Takes a type-0x9 input buffer for the path and returns [[#DirectoryEntryType]] as an output u32.


== GetChallenge ==
== OpenFile ==
No input/output, takes a type-0x6 output buffer containing the '''Challenge'''.
Takes a type-0x19 input buffer for the path, and an u32 '''mode'''. '''mode''' controls how the file is opened, based on which bits are set:


== SetKeySeedPackage ==
* When bit 0 is set, the file is Readable: you can use the Read operation.
No input/output, takes a type-0x5 input buffer containing the '''KeySeedPackage'''.
* When bit 1 is set, the file is Writable: you can use the Write operation.
* When bit 2 is set, the file is Appendable: unless this bit is set, you will not be able to write beyond the end of a file (such writes will result in an error 0x307202)


== OpenSaveDataFullExporter ==
== OpenDirectory ==
Takes an input u8 [[#SaveDataSpaceId]] and u64. Returns an [[#ISaveDataDivisionExporter]].
Takes a type-0x9 input buffer for the path and an u64 '''filter_flags'''. '''filter_flags''' controls what type of entries are read by the [[#IDirectory]]: bitmask 0x1 = directories, bitmask 0x2 = files.


== OpenSaveDataDiffExporter ==
== Commit ==
Takes an input u8 [[#SaveDataSpaceId]], an u64, and a type-0x5 input buffer [[#InitialDataVersion2]]. Returns an [[#ISaveDataDivisionExporter]].
Like [https://3dbrew.org/wiki/FS:ControlArchive 3DS], this has to be used after writing to savedata for the changes to take affect.


== OpenSaveDataExporterByContext ==
== GetFreeSpaceSize ==
No input/output, takes a type-0x5 input buffer, returns an [[#ISaveDataDivisionExporter]].
Takes a type-0x9 input buffer for the path and returns an output byte-size u64 for the total free space with this FS.


== OpenSaveDataFullImporter ==
== GetTotalSpaceSize ==
Takes an input u8 [[#SaveDataSpaceId]], a 0x10-byte userID, and a type-0x5 input buffer [[#InitialDataVersion2]]. Returns an [[#ISaveDataDivisionImporter]].
Takes a type-0x9 input buffer for the path and returns an output byte-size u64 for the total space available with this FS(free+used).


== OpenSaveDataDiffImporter ==
== CleanDirectoryRecursively ==
Takes an input u8 [[#SaveDataSpaceId]], an u64, and a type-0x5 input buffer [[#InitialDataVersion2]], returns an [[#ISaveDataDivisionImporter]].
Takes a type-0x9 input buffer for the path and clears the contents of the directory specified in the path.


== OpenSaveDataDuplicateDiffImporter ==
== GetFileTimeStampRaw ==
Takes an input u8 and an u64, and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
Takes a type-0x19 input buffer for the path and returns a 0x20-byte struct. This contains 3 u64s and an u8.


== OpenSaveDataImporter ==
= IDirectory =
Takes an input u8, an u8(bool), a 0x10-byte struct, and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
This is "nn::fssrv::sf::IDirectory".


== OpenSaveDataImporterByContext ==
{| class="wikitable" border="1"
No input/output, takes a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
|-
! Cmd || Name
|-
| 0 || [[#Read]]
|-
| 1 || [[#GetEntryCount]]
|}
 
== Read ==
Takes a type-0x6 output buffer. Returns an output u64(?) for the total number of read entries, this is 0 when no more entries are available.
 
The output buffer contains the read array of [[#DirectoryEntry]]. This doesn't include entries for "." and "..".


== CancelSuspendingImport ==
== GetEntryCount ==
Takes an input u64 and a 0x10-byte struct, no output.
Returns an u64 for the total number of readable entries.


= ISaveDataDivisionExporter =
= DirectoryEntry =
This is "nn::fssrv::sf::ISaveDataDivisionExporter".
This is "nn::fs::DirectoryEntry".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Offset || Size || Description
|-
|-
| 0 || SetDivisionCount (Takes an input u32, no output)
| 0x0 || 0x301 || Path
|-
|-
| 1 || [6.0.0+] GetSaveDataInfo (No input/output, takes a type-0x6 output buffer)
| 0x301 || 0x1 || File attributes (bit 0 = is directory; bit 1 = archive bit)
|-
|-
| 16 || OpenSaveDataDiffChunkIterator (No input, returns an [[#ISaveDataChunkIterator]])
| 0x302 || 0x2 || Padding?
|-
|-
| 48 || OpenSaveDataChunkExporter (Takes an input u32, returns an [[#ISaveDataChunkExporter]])
| 0x304 || 0x1 || [[#DirectoryEntryType]]
|-
|-
| 64 || [6.0.0+] FinalizeFullExport (No input, returns two 0x10-byte output structs)
| 0x305 || 0x3 || Padding?
|-
|-
| 65 || [6.0.0+] FinalizeDiffExport (No input, returns an output 0x10-byte struct)
| 0x308 || 0x8 || Filesize, 0 for directories.
|}
 
= DirectoryEntryType =
This is "nn::fs::DirectoryEntryType".
 
An s8 value indicating a directory entry type. The current values are:
 
{| class="wikitable" border="1"
|-
|-
| 66 || [6.0.0+] CancelExport (No input/output)
! Value || Description
|-
|-
| 67 || [6.0.0+] SuspendExport (No input/output, takes a type-0x6 output buffer)
| 0 || Directory
|-
|-
| 70 || [6.0.0+] GetKeySeed (No input, returns an output 0x10-byte struct)
| 1 || File
|-
| 71 || [6.0.0+] GetInitialDataMac (No input, returns an output 0x10-byte struct)
|-
| 72 || [6.0.0+] FinalizeExport (No input/output)
|-
| 80 || [6.0.0+] GetImportInitialDataAad (No input, returns an output 0x20-byte struct)
|-
| 81 || [6.0.0+] SetExportInitialDataAad (Takes an input 0x20-byte struct, no output)
|-
| 96 || [6.0.0+] GetReportInfo (No input, returns an output 0x20-byte struct)
|}
|}


This was added with [[5.0.0]].
= IFile =
 
This is "nn::fssrv::sf::IFile".
= ISaveDataDivisionImporter =
This is "nn::fssrv::sf::ISaveDataDivisionImporter".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 1,159: Line 1,334:
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || [6.0.0+] GetSaveDataInfo (No input/output, takes a type-0x6 output buffer)
| 0 || Read
|-
|-
| 16 || OpenSaveDataDiffChunkIterator (No input, returns an [[#ISaveDataChunkIterator]])
| 1 || Write
|-
|-
| 32 || InitializeImport (No input, returns an output u64)
| 2 || Flush
|-
|-
| 33 || FinalizeImport (No input/output)
| 3 || SetSize
|-
|-
| 34 || [6.0.0+] CancelImport (No input/output)
| 4 || GetSize
|-
|-
| 35 || [6.0.0+] GetImportContext (No input/output, takes a type-0x6 output buffer)
| 5 || [4.0.0+] OperateRange
|-
| 36 || [6.0.0+] SuspendImport (No input/output)
|-
| 48 || OpenSaveDataChunkImporter (Takes an input u32, returns an [[#ISaveDataChunkImporter]])
|-
| 64 || [6.0.0+] GetImportInitialDataAad (No input, returns an output 0x20-byte struct)
|-
| 80 || [6.0.0+] GetReportInfo (No input, returns an output 0x20-byte struct)
|}
|}


This was added with [[5.0.0]].
= ISaveDataInfoReader =
 
This is "nn::fssrv::sf::ISaveDataInfoReader".
= ISaveDataChunkIterator =
This is "nn::fssrv::sf::ISaveDataChunkIterator".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 1,189: Line 1,354:
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || Next (No input/output)
| 0 || [[#ReadSaveDataInfo]]
|-
| 1 || IsEnd (No input, returns an output u8)
|-
| 16 || GetId (No input, returns an output u32)
|}
|}


This was added with [[5.0.0]].
== ReadSaveDataInfo ==
Takes a type-0x6 output buffer. Returns an output u64 for total output entries. This buffer contains an array of [[#SaveDataInfo]].
 
This is used to get [[#SaveDataInfo]] for all savedata on the system (or all savedata for the current [[#SaveDataSpaceId]]). When used multiple times, it will resume reading where it left off, until no more entries are available (in that case the out u64 is value 0).


= ISaveDataChunkExporter =
= IDeviceOperator =
This is "nn::fssrv::sf::ISaveDataChunkExporter".
This is "nn::fssrv::sf::IDeviceOperator".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 1,205: Line 1,369:
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || Pull (Takes an input u64 and a type-0x6 output buffer, returns an output u64)
| 0 || IsSdCardInserted
|-
|-
| 16 || [6.0.0+] GetRestRawDataSize (No input, returns an output u64)
| 1 || GetSdCardSpeedMode
|-
|-
|}
| 2 || [2.0.0+] GetSdCardCid
 
|-
This was added with [[5.0.0]].
| 3 || [2.0.0+] GetSdCardUserAreaSize
 
= ISaveDataChunkImporter =
This is "nn::fssrv::sf::ISaveDataChunkImporter".
 
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| 4 || [2.0.0+] GetSdCardProtectedAreaSize
|-
|-
| 0 || Push (Takes an input u64 and a type-0x5 input buffer, no output)
| 5 || [2.0.0+] GetAndClearSdCardErrorInfo
|}
 
This was added with [[5.0.0]].
 
= ISaveDataTransferProhibiter =
This was added with [[6.0.0]].
 
This doesn't seem to handle any commands (?).
 
= IMultiCommitManager =
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| 100 || GetMmcCid
|-
|-
| 1 || ? (Takes an input [[#IFilesystem]], no output)
| 101 || GetMmcSpeedMode
|-
|-
| 2 || ? (No input/output)
| 110 || EraseMmc
|}
 
This was added with [[6.0.0]].
 
= FileSystemType =
{| class="wikitable" border="1"
|-
|-
! Value || Name
| 111 || GetMmcPartitionSize
|-
|-
| 0 || Code
| 112 || [2.0.0+] GetMmcPatrolCount
|-
|-
| 1 || Data
| 113 || [2.0.0+] GetAndClearMmcErrorInfo
|-
|-
| 2 || Logo
| 114 || [2.0.0+] GetMmcExtendedCsd
|-
|-
| 3 || ContentControl
| 115 || [4.0.0+] SuspendMmcPatrol
|-
|-
| 4 || ContentManual
| 116 || [4.0.0+] ResumeMmcPatrol
|-
|-
| 5 || ContentMeta
| 200 || [[#IsGameCardInserted]]
|-
|-
| 6 || ContentData
| 201 || EraseGameCard
|-
|-
| 7 || ApplicationPackage
| 202 || [[#GetGameCardHandle]]
|-
|-
| 8 || RegisteredUpdate
| 203 || [[#GetGameCardUpdatePartitionInfo]]
|}
 
= StorageId =
{| class="wikitable" border="1"
|-
|-
! Value || Name
| 204 || FinalizeGameCardDriver
|-
|-
| 0 || None
| 205 || GetGameCardAttribute
|-
|-
| 1 || Host
| 206 || [[#GetGameCardDeviceCertificate]]
|-
|-
| 2 || GameCard
| 207 || GetGameCardAsicInfo
|-
|-
| 3 || NandSystem
| 208 || GetGameCardIdSet
|-
|-
| 4 || NandUser
| 209 || WriteToGameCardDirectly
|-
|-
| 5 || SdCard
| 210 || SetVerifyWriteEnalbleFlag
|}
 
= ContentStorageId =
This is "nn::fs::ContentStorageId".
 
{| class="wikitable" border="1"
|-
|-
! Value || Name
| 211 || GetGameCardImageHash
|-
|-
| 0 || System
| 212 || [2.0.0+] GetGameCardDeviceIdForProdCard
|-
|-
| 1 || User
| 213 || [2.0.0+] EraseAndWriteParamDirectly
|-
|-
| 2 || SdCard
| 214 || [2.0.0+] ReadParamDirectly
|}
 
= SaveDataSpaceId =
This is "nn::fs::SaveDataSpaceId".
 
{| class="wikitable" border="1"
|-
|-
! Value || Name
| 215 || [2.0.0+] ForceEraseGameCard
|-
|-
| 0 || System
| 216 || [2.0.0+] GetGameCardErrorInfo
|-
|-
| 1 || User
| 217 || [2.1.0+] GetGameCardErrorReportInfo
|-
|-
| 2 || SdSystem
| 218 || [3.0.0+] GetGameCardDeviceId
|-
| 219 || [8.0.0+] [[#ChallengeCardExistence]]
|-
|-
| 100 || [3.0.0+] ProperSystem
| 220 || [9.0.0+] [[#GetGameCardCompatibilityType]]
|}
 
Determines the storage where the savedata is stored.
 
= SaveDataType =
{| class="wikitable" border="1"
|-
|-
! Value || Name
| 300 || SetSpeedEmulationMode
|-
|-
| 0 || SystemSaveData
| 301 || GetSpeedEmulationMode
|-
|-
| 1 || SaveData
| 400 || [5.0.0+] SuspendSdmmcControl
|-
|-
| 2 || BcatDeliveryCacheStorage
| 401 || [5.0.0+] ResumeSdmmcControl
|-
|-
| 3 || DeviceSaveData
| 402 || [6.0.0+] [[#GetSdmmcConnectionStatus]]
|-
|-
| 4 || [3.0.0+] TemporaryStorage
| 500 || [6.0.0+] [[#SetDeviceSimulationEvent]]
|-
|-
| 5 || [3.0.0+] CacheStorage
| 501 || [6.0.0+] [[#ClearDeviceSimulationEvent]]
|}
|}


= ImageDirectoryId =
== IsGameCardInserted ==
This is "nn::fs::ImageDirectoryId".
No input, returns a bool.
 
== GetGameCardHandle ==
No input, returns an u32 '''GameCardHandle'''.


{| class="wikitable" border="1"
== GetGameCardUpdatePartitionInfo ==
|-
Returns a [[NCM_services#ProgramId|ProgramId]] and the title-version for it.
! Value || Name
 
|-
* Output u32 with ARMS-gamecard: title-version v131162. This is the title-version for [[2.1.0]], which is the sysupdate included with this gamecard. Launch-day gamecards return title-version v450.
| 0 || Nand
* Output u64 with ARMS-gamecard: [[NCM_services#ProgramId|ProgramId]] 0100000000000816.
|-
 
| 1 || SdCard
[[NS_Services|NS]] appears to only use this with [[NCM_services|NCM]] for checking whether a sysupdate is required.
|}
 
== GetGameCardDeviceCertificate ==
Takes a type-0x6 output buffer, an u32 '''GameCardHandle''' and an u64 '''DeviceCertificateBufferSize'''. No output.
 
== ChallengeCardExistence ==
Takes a type-0x6 output buffer, two type-0x5 input buffers and an u32 '''GameCardHandle'''. No output.
 
[9.0.0+] The [[Account_services|account]] system module uses this as part of a new challenge-response mechanism for [[Network#aauth|application authentication]].
 
== GetGameCardCompatibilityType ==
Takes an u32 '''GameCardHandle''', returns an u8 '''CompatibilityType''' (0x00 = Global, 0x01 = China) from [[Gamecard_Format#Gamecard_Info|Gamecard Info]].
 
== GetSdmmcConnectionStatus ==
Takes a total of 4-bytes of input, returns a total of 8-bytes of output.
 
== SetDeviceSimulationEvent ==
Takes a total of 0x14-bytes of input, no output.
 
== ClearDeviceSimulationEvent ==
Takes a total of 4-bytes of input, no output.
 
= IEventNotifier =
This is "nn::fssrv::sf::IEventNotifier".


= CloudBackupWorkStorageId =
This is "nn::fs::CloudBackupWorkStorageId".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Value || Name
! Cmd || Name
|-
| 0 || Nand
|-
|-
| 1 || SdCard
| 0 || [[#GetEventHandle]]
|}
|}


= CustomStorageId =
== GetEventHandle ==
This is "nn::fs::CustomStorageId".
No input, returns an output Event handle. With official sw the EventClearMode is user-specified.
 
= ISaveDataTransferManager =
This is "nn::fssrv::sf::ISaveDataTransferManager".
 
This was added with [[4.0.0]].


{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Value || Name
! Cmd || Name
|-
| 0 || [[#GetChallenge]]
|-
| 16 || [[#SetToken]]
|-
|-
| 0 || Nand
| 32 || [[#OpenSaveDataExporter]]
|-
|-
| 1 || SdCard
| 64 || [[#OpenSaveDataImporter]]
|}
|}


= ContentPath =
== GetChallenge ==
These are the 0x300 paths to NCA files for the various filesystems FS can access, beginning with @. They're passed via X descriptors, and returned via various [[Location Resolver services|ncm/lr]] commands.
No input/output, takes a type-0x6 output buffer.
 
== SetToken ==
No input/output, takes a type-0x5 input buffer.
 
== OpenSaveDataExporter ==
Takes an input u8 [[#SaveDataSpaceId]] and u64, returns an [[#ISaveDataExporter]].
 
== OpenSaveDataImporter ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x10-byte userID, and a type-0x5 input buffer. Returns an output u64 and an [[#ISaveDataImporter]].
 
= ISaveDataTransferManagerForSaveDataRepair =
This is "nn::fssrv::sf::ISaveDataTransferManagerForSaveDataRepair".
 
This was added with [[9.0.0]].


{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Path || Notes
! Cmd || Name
|-
|-
| @SystemContent ||
| 0 || [[#GetChallenge]]
|-
| @UserContent ||
|-
|-
| @SdCardContent ||
| 16 || [[#SetKeyPackage]]
|-
|-
| @CalibFile ||
| 80 || [[#OpenSaveDataExporterAndGetEncryptedKey]]
|-
|-
| @Safe ||
| 81 || [[#PrepareOpenSaveDataImporter]]
|-
|-
| @User ||
| 90 || [[#OpenSaveDataImporter]]
|-
|-
| @System ||
| 91 || [[#OpenSaveDataImporter2]]
|-
|-
| @Sdcard ||
| 100 || [[#OpenSaveDataExporterWithKey]]
|-
|-
| @Host ||
| 110 || [[#OpenSaveDataImporterWithKey]]
|}
 
== SetKeyPackage ==
No input/output, takes a type-0x5 input buffer.
 
== OpenSaveDataExporterAndGetEncryptedKey ==
Takes a total of 0x10-bytes of input and a type-0x1A output buffer to receive a RsaEncryptedKey. Returns an [[#ISaveDataDivisionExporter]].
 
== PrepareOpenSaveDataImporter ==
Takes a type-0x1A output buffer to receive a RsaEncryptedKey.
 
== OpenSaveDataImporter ==
Takes a total of 0x18-bytes of input and two type-0x5 input buffers, returns an [[#ISaveDataDivisionImporter]].
 
== OpenSaveDataImporter2 ==
Takes a total of 0x18-bytes of input and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
 
== OpenSaveDataExporterWithKey ==
Takes a total of 0x20-bytes of input, returns an [[#ISaveDataDivisionExporter]].
 
== OpenSaveDataImporterWithKey ==
Takes a total of 0x28-bytes of input and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
 
= ISaveDataMover =
This is "nn::fssrv::sf::ISaveDataMover".
 
This was added with [[10.0.0]].
 
{| class="wikitable" border="1"
|-
|-
| @GcApp || Gamecard App partition (Partition 2)
! Cmd || Name
|-
|-
| @GcS00000001 || Gamecard Contents.
| 8 || [[#Register]]
|-
|-
| @upp || Gamecard update partition (Partition 0)
| 16 || [[#Process]]
|-
|-
| [4.0.0+] @RegUpdate || Registered update partition
| 18 || [[#Cancel]]
|}
|}


= Save Struct =
== Register ==
This is "nn::fs::SaveDataAttribute".
Takes an input u64, no output.
 
== Process ==
Takes an input u64, returns an output u64.
 
== Cancel ==
No input/output.
 
= ISaveDataExporter =
This is "nn::fssrv::sf::ISaveDataExporter".
 
This was added with [[4.0.0]].


{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Offset
! Cmd || Name
! Size
! Description
|-
|-
| 0x0
| 0 || [[#GetSaveDataInfo]]
| 0x8
| 0 for SystemSaveData. SaveData: 0 can be used for accessing the savedata associated with the current FS session titleID, otherwise when set this is the titleID associated with the savedata to access.
|-
|-
| 0x8
| 1 || [[#GetRestSize]]
| 0x10
| userID for user-specific savedata(saveuser) when set, otherwise when zero this indicates the common savedata(savecommon). This is loaded from [[Account_services]].
|-
|-
| 0x18
| 16 || [[#Pull]]
| 0x8
| u64 [[Flash_Filesystem|saveID]]. 0 for SaveData.
|-
|-
| 0x20
| 17 || [[#PullInitialData]]
| 0x1
|}
| [[#SaveDataType]]
 
== GetSaveDataInfo ==
No input/output, takes a type-0x1A [[#SaveDataInfo]] output buffer.
 
The actual name for this is the SaveDataExporter constructor. This is used automatically after [[#OpenSaveDataExporter]] by official sw.
 
== GetRestSize ==
No input, returns an output u64.
 
== Pull ==
Takes a type-0x6 output buffer, returns an output u64.
 
== PullInitialData ==
No input/output, takes a type-0x6 output buffer.
 
= ISaveDataImporter =
This is "nn::fssrv::sf::ISaveDataImporter".
 
This was added with [[4.0.0]].
 
{| class="wikitable" border="1"
|-
|-
| 0x21
! Cmd || Name
| 0x1
| Save data 'rank' or 'precedence'. 0 if this save data is considered the primary save data. 1 if it's considered the secondary save data.
|-
|-
| 0x22
| 0 || [[#GetSaveDataInfo]]
| 0x2
| Save data index
|-
|-
| 0x24
| 1 || [[#GetRestSize]]
| 0x4
| Padding
|-
|-
| 0x28
| 16 || [[#Push]]
| 0x8
| 0 for SystemSaveData/SaveData.
|-
|-
| 0x30
| 17 || [[#Finalize]]
| 0x8
| 0 for SystemSaveData/SaveData.
|-
| 0x38
| 0x8
| 0 for SystemSaveData/SaveData.
|}
|}


Total size is 0x40-bytes.
== GetSaveDataInfo ==
No input/output, takes a type-0x1A [[#GetSaveDataInfo]] output buffer.


For DeviceSaveData, this struct is all-zero except for the [[#SaveDataType]] field.
The actual name for this is the SaveDataImporter constructor. This is used automatically after [[#OpenSaveDataImporter]] by official sw.


= SaveCreate Struct =
== GetRestSize ==
{| class="wikitable" border="1"
No input, returns an output u64.
|-
 
! Offset
== Push ==
! Size
No input/output, takes a type-0x5 input buffer.
! Description
 
== Finalize ==
No input/output.
 
= ISaveDataTransferManagerWithDivision =
This is "nn::fssrv::sf::ISaveDataTransferManagerWithDivision".
 
This was added with [[5.0.0]].
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
|-
| 0x0
| 0 || [[#GetChallenge]]
| 0x8
|-
| Save data size.
| 16 || [[#SetKeySeedPackage]]
|-
| 32 || [[#OpenSaveDataExporter]]
|-
| 33 || [[#OpenSaveDataExporterForDiffExport]]
|-
| 34 || [6.0.0+] [[#OpenSaveDataExporterByContext]]
|-
|rowspan="2"| 64 || [5.0.0-5.1.0] OpenSaveDataImporter
|-
| [6.0.0+] [[#OpenSaveDataImporterDeprecated]]
|-
| 65 || [[#OpenSaveDataImporterForDiffImport]]
|-
|-
| 0x8
| 66 || [6.0.0+] [[#OpenSaveDataImporterForDuplicateDiffImport]]
| 0x8
| Save data journal size.
|-
|-
| 0x10
| 67 || [6.0.0+] [[#OpenSaveDataImporter]]
|-
| 68 || [6.0.0+] [[#OpenSaveDataImporterByContext]]
|-
| 69 || [6.0.0+] [[#CancelSuspendingImport]]
|-
| 70 || [10.0.0+] DecryptAndVerifyInitialData
|}
 
== GetChallenge ==
No input/output, takes a type-0x6 output buffer containing the '''Challenge'''.
 
== SetKeySeedPackage ==
No input/output, takes a type-0x5 input buffer containing the '''KeySeedPackage'''.
 
== OpenSaveDataExporter ==
Takes an input u8 [[#SaveDataSpaceId]] and u64. Returns an [[#ISaveDataDivisionExporter]].
 
== OpenSaveDataExporterForDiffExport ==
Takes an input u8 [[#SaveDataSpaceId]], an u64, and a type-0x5 input buffer [[#InitialDataVersion2]]. Returns an [[#ISaveDataDivisionExporter]].
 
== OpenSaveDataExporterByContext ==
No input/output, takes a type-0x5 input buffer, returns an [[#ISaveDataDivisionExporter]].
 
== OpenSaveDataImporterDeprecated ==
Takes an input u8 [[#SaveDataSpaceId]], a 0x10-byte userID, and a type-0x5 input buffer [[#InitialDataVersion2]]. Returns an [[#ISaveDataDivisionImporter]].
 
== OpenSaveDataImporterForDiffImport ==
Takes an input u8 [[#SaveDataSpaceId]], an u64, and a type-0x5 input buffer [[#InitialDataVersion2]], returns an [[#ISaveDataDivisionImporter]].
 
== OpenSaveDataImporterForDuplicateDiffImport ==
Takes an input u8 and an u64, and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
 
== OpenSaveDataImporter ==
Takes an input u8, an u8(bool), a 0x10-byte struct, and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
 
== OpenSaveDataImporterByContext ==
No input/output, takes a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
 
== CancelSuspendingImport ==
Takes an input u64 and a 0x10-byte struct, no output.
 
= ISaveDataDivisionExporter =
This is "nn::fssrv::sf::ISaveDataDivisionExporter".
 
This was added with [[5.0.0]].
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#SetDivisionCount]]
|-
| 1 || [6.0.0+] [[#GetSaveDataInfo]]
|-
| 16 || [[#OpenSaveDataDiffChunkIterator]]
|-
| 48 || [[#OpenSaveDataChunkExporter]]
|-
| 64 || [6.0.0-8.1.0] [[#FinalizeFullExport]]
|-
| 65 || [6.0.0-8.1.0] [[#FinalizeDiffExport]]
|-
| 66 || [6.0.0+] [[#CancelExport]]
|-
| 67 || [6.0.0+] [[#SuspendExport]]
|-
| 70 || [6.0.0+] [[#GetKeySeed]]
|-
| 71 || [6.0.0+] [[#GetInitialDataMac]]
|-
| 72 || [6.0.0+] [[#FinalizeExport]]
|-
| 73 || [9.0.0+] [[#GetInitialDataMacKeyGeneration]]
|-
| 80 || [6.0.0+] [[#GetImportInitialDataAad]]
|-
| 81 || [6.0.0+] [[#SetExportInitialDataAad]]
|-
| 96 || [6.0.0+] [[#GetReportInfo]]
|}
 
== SetDivisionCount ==
Takes an input u32, no output.
 
== OpenSaveDataChunkExporter ==
Takes an input u32, returns an [[#ISaveDataChunkExporter]].
 
== FinalizeFullExport ==
No input, returns two 0x10-byte output structs.
 
== FinalizeDiffExport ==
No input, returns an output 0x10-byte struct.
 
== CancelExport ==
No input/output.
 
== SuspendExport ==
No input/output, takes a type-0x6 output buffer.
 
== GetKeySeed ==
No input, returns an output 0x10-byte struct.
 
== GetInitialDataMac ==
No input, returns an output 0x10-byte struct.
 
== FinalizeExport ==
No input/output.
 
== SetExportInitialDataAad ==
Takes an input 0x20-byte struct, no output.
 
= ISaveDataDivisionImporter =
This is "nn::fssrv::sf::ISaveDataDivisionImporter".
 
This was added with [[5.0.0]].
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [6.0.0+] [[#GetSaveDataInfo]]
|-
| 16 || [[#OpenSaveDataDiffChunkIterator]]
|-
| 32 || [[#InitializeImport]]
|-
| 33 || [[#FinalizeImport]]
|-
| 34 || [6.0.0+] [[#CancelImport]]
|-
| 35 || [6.0.0+] [[#GetImportContext]]
|-
| 36 || [6.0.0+] [[#SuspendImport]]
|-
| 48 || [[#OpenSaveDataChunkImporter]]
|-
| 64 || [6.0.0+] [[#GetImportInitialDataAad]]
|-
| 80 || [6.0.0+] [[#GetReportInfo]]
|}
 
== GetSaveDataInfo ==
No input/output, takes a type-0x6 output buffer.
 
== OpenSaveDataDiffChunkIterator ==
No input, returns an [[#ISaveDataChunkIterator]].
 
== InitializeImport ==
No input, returns an output u64.
 
== FinalizeImport ==
No input/output.
 
== CancelImport ==
No input/output.
 
== GetImportContext ==
No input/output, takes a type-0x6 output buffer.
 
== SuspendImport ==
No input/output.
 
== OpenSaveDataChunkImporter ==
Takes an input u32, returns an [[#ISaveDataChunkImporter]].
 
== GetImportInitialDataAad ==
No input, returns an output 0x20-byte struct.
 
== GetReportInfo ==
No input, returns an output 0x20-byte struct.
 
= ISaveDataChunkIterator =
This is "nn::fssrv::sf::ISaveDataChunkIterator".
 
This was added with [[5.0.0]].
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#Next]]
|-
| 1 || [[#IsEnd]]
|-
| 16 || [[#GetId]]
|}
 
== Next ==
No input/output.
 
== IsEnd ==
No input, returns an output u8.
 
== GetId ==
No input, returns an output u32.
 
= ISaveDataChunkExporter =
This is "nn::fssrv::sf::ISaveDataChunkExporter".
 
This was added with [[5.0.0]].
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#Pull]]
|-
| 16 || [6.0.0+] [[#GetRestRawDataSize]]
|}
 
== Pull ==
Takes an input u64 and a type-0x6 output buffer, returns an output u64.
 
== GetRestRawDataSize ==
No input, returns an output u64.
 
= ISaveDataChunkImporter =
This is "nn::fssrv::sf::ISaveDataChunkImporter".
 
This was added with [[5.0.0]].
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#Push]]
|}
 
== Push ==
Takes an input u64 and a type-0x5 input buffer, no output.
 
= ISaveDataTransferProhibiter =
This was added with [[6.0.0]].
 
This doesn't seem to handle any commands (?).
 
= IMultiCommitManager =
This was added with [[6.0.0]].
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 1 || [[#Add]]
|-
| 2 || [[#Commit]]
|}
 
== Add ==
Takes an input [[#IFilesystem]], no output.
 
== Commit ==
No input/output.
 
= IWiper =
This is "nn::fs::IWiper".
 
This was added with [[10.0.0]].
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#Startup|Startup]]
|-
| 16 || [[#Process_2|Process]]
|}
 
== Startup ==
No input. Returns an u64.
 
== Process ==
No input. Returns an u64.
 
= FileSystemProxyType =
This is "nn::fs::FileSystemProxyType".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Code
|-
| 1 || Rom
|-
| 2 || Logo
|-
| 3 || Control
|-
| 4 || Manual
|-
| 5 || Meta
|-
| 6 || Data
|-
| 7 || Package
|-
| 8 || [4.0.0+] RegisteredUpdate
|}
 
= ContentType =
This is "nn::fs::ContentType".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Meta
|-
| 1 || Control
|-
| 2 || Manual
|-
| 3 || Logo
|-
| 4 || Data
|}
 
= ContentStorageId =
This is "nn::fs::ContentStorageId".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || System
|-
| 1 || User
|-
| 2 || SdCard
|}
 
= SaveDataSpaceId =
This is "nn::fs::SaveDataSpaceId".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || System
|-
| 1 || User
|-
| 2 || SdSystem
|-
| 3 || [3.0.0+] Temporary
|-
| 4 || [4.0.0+] SdUser
|-
| 100 || [3.0.0+] ProperSystem
|-
| 101 || [3.0.0+] SafeMode
|}
 
Determines the storage where the savedata is stored.
 
= SaveDataType =
This is "nn::fs::SaveDataType".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || System
|-
| 1 || Account
|-
| 2 || Bcat
|-
| 3 || Device
|-
| 4 || [3.0.0+] Temporary
|-
| 5 || [3.0.0+] Cache
|-
| 6 || [4.0.0+] SystemBcat
|}
 
= SaveDataRank =
This is "nn::fs::SaveDataRank".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Primary
|-
| 1 || Secondary
|}
 
= SaveDataEnumerateOption =
This is "nn::fs::SaveDataEnumerateOption".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 1 || AllRank
|}
 
= SaveDataFlags =
This is "nn::fs::SaveDataFlags".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 1 || KeepAfterResettingSystemSaveData
|-
| 2 || KeepAfterRefurbishment
|-
| 4 || KeepAfterResettingSystemSaveDataWithoutUserSaveData
|-
| 8 || NeedsSecureDelete
|}
 
= SaveDataMetaType =
This is "nn::fs::SaveDataMetaType".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || None
|-
| 1 || Thumbnail
|-
| 2 || ExtensionContext
|}
 
= ImageDirectoryId =
This is "nn::fs::ImageDirectoryId".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Nand
|-
| 1 || SdCard
|}
 
= CloudBackupWorkStorageId =
This is "nn::fs::CloudBackupWorkStorageId".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Nand
|-
| 1 || SdCard
|}
 
= CustomStorageId =
This is "nn::fs::CustomStorageId".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || System
|-
| 1 || SdCard
|}
 
= Priority =
This is "nn::fs::Priority".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Realtime
|-
| 1 || Normal
|-
| 2 || Low
|}
 
= PriorityRaw =
This is "nn::fs::PriorityRaw".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Realtime
|-
| 1 || Normal
|-
| 2 || Low
|-
| 3 || Background
|}
 
= AbortSpecifier =
This is "nn::fs::AbortSpecifier".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Default
|-
| 1 || Abort
|-
| 2 || ReturnResult
|}
 
= OperationId =
This is "nn::fs::OperationId".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Clear
|-
| 1 || ClearSignature
|-
| 2 || InvalidateCache
|-
| 3 || QueryRange
|}
 
= MountHostOption =
This is "nn::fs::MountHostOption".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 1 || PseudoCaseSensitive
|}
 
= BisPartitionId =
This is "nn::fs::BisPartitionId".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || BootPartition1Root
|-
| 10 || BootPartition2Root
|-
| 20 || UserDataRoot
|-
| 21 || BootConfigAndPackage2Part1
|-
| 22 || BootConfigAndPackage2Part2
|-
| 23 || BootConfigAndPackage2Part3
|-
| 24 || BootConfigAndPackage2Part4
|-
| 25 || BootConfigAndPackage2Part5
|-
| 26 || BootConfigAndPackage2Part6
|-
| 27 || CalibrationBinary
|-
| 28 || CalibrationFile
|-
| 29 || SafeMode
|-
| 30 || User
|-
| 31 || System
|-
| 32 || SystemProperEncryption
|-
| 33 || SystemProperPartition
|-
| 34 || SignedSystemPartitionOnSafeMode
|}
 
= MmcSpeedMode =
This is "nn::fs::MmcSpeedMode".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Identification
|-
| 1 || LegacySpeed
|-
| 2 || HighSpeed
|-
| 3 || Hs200
|-
| 4 || Hs400
|-
| 5 || Unknown
|}
 
= MmcPartition =
This is "nn::fs::MmcPartition".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || UserData
|-
| 1 || BootPartition1
|-
| 2 || BootPartition2
|}
 
= GameCardPartition =
This is "nn::fs::GameCardPartition".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Update
|-
| 1 || Normal
|-
| 2 || Secure
|-
| 3 || [4.0.0+] Logo
|}
 
= GameCardPartitionRaw =
This is "nn::fs::GameCardPartitionRaw".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || NormalReadOnly
|-
| 1 || SecureReadOnly
|-
| 2 || RootWriteOnly
|}
 
= GameCardAttribute =
This is "nn::fs::GameCardAttribute".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 1 || AutoBootFlag
|-
| 2 || HistoryEraseFlag
|-
| 4 || [4.0.0+] RepairToolFlag
|-
| 8 || [9.0.0+] DifferentRegionCupToTerraDeviceFlag
|-
| 16 || [9.0.0+] DifferentRegionCupToGlobalDeviceFlag
|}
 
= GameCardSize =
This is "nn::fs::GameCardSize".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 1 || Size1GB
|-
| 2 || Size2GB
|-
| 4 || Size4GB
|-
| 8 || Size8GB
|-
| 16 || Size16GB
|-
| 32 || Size32GB
|}
 
= GameCardClockRate =
This is "nn::fs::GameCardClockRate".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 25 || ClockRate25MHz
|-
| 50 || ClockRate50MHz
|}
 
= SimulatingDeviceType =
This is "nn::fs::SimulatingDeviceType".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || eMMC
|-
| 1 || SdCard
|-
| 2 || GameCard
|}
 
= SimulatingDeviceDetectionMode =
This is "nn::fs::SimulatingDeviceDetectionMode".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || NoSimulation
|-
| 1 || DeviceAttached
|-
| 2 || DeviceRemoved
|}
 
= SimulatingDeviceAccessFailureEventType =
This is "nn::fs::SimulatingDeviceAccessFailureEventType".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || None
|-
| 1 || AccessTimeoutFailure
|-
| 2 || AccessFailure
|-
| 3 || DataCorruption
|}
 
= SimulatingDeviceTargetOperation =
This is "nn::fs::SimulatingDeviceTargetOperation".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 1 || Read
|-
| 2 || Write
|}
 
= SpeedEmulationMode =
This is "nn::fs::SpeedEmulationMode".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || None
|-
| 1 || Faster
|-
| 2 || Slower
|-
| 3 || Random
|}
 
= ContentPath =
These are the 0x300 paths to NCA files for the various filesystems FS can access, beginning with @. They're passed via X descriptors, and returned via various [[Location Resolver services|ncm/lr]] commands.
 
{| class="wikitable" border="1"
|-
! Path || Notes
|-
| @SystemContent ||
|-
| @UserContent ||
|-
| @SdCardContent ||
|-
| @CalibFile ||
|-
| @Safe ||
|-
| @User ||
|-
| @System ||
|-
| @Sdcard ||
|-
| @Host ||
|-
| @GcApp || Gamecard App partition (Partition 2)
|-
| @GcXYYYYYYYY || Gamecard Contents. X is the partition type (U - Update, N - Normal, S - Secure). Y is the gamecard handle as a 32-bit hex value
|-
| @upp || Gamecard update partition (Partition 0)
|-
| [4.0.0+] @RegUpdate || Registered update partition
|}
 
= SaveDataAttribute =
This is "nn::fs::SaveDataAttribute".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x8
| 0x8
| Save data block size. 0x4000 for SystemSaveData/SaveData/DeviceSaveData/BcatSaveData.
| [[NCM_services#ApplicationId|ApplicationId]] (0 for SystemSaveData)</br>SaveData: 0 can be used for accessing the savedata associated with the current FS session [[NCM_services#ApplicationId|ApplicationId]], otherwise when set this is the [[NCM_services#ApplicationId|ApplicationId]] associated with the savedata to access.
|-
|-
| 0x18
| 0x8
| 0x8
| 0x10
| Save data owner id. Official user-processes only uses 0 here for SystemSaveData/SaveData. For the dedicated save-creation code with SaveData/DeviceSaveData, this value comes from an input param with official user-processes. For BcatSaveData, this is the hard-coded [[Title_list|titleID]] of the bcat-sysmodule.
| UserId</br>For user-specific savedata(saveuser) when set, otherwise when zero this indicates the common savedata(savecommon). This is loaded from [[Account_services]].
|-
|-
| 0x20
| 0x18
| 0x4
| 0x8
| Save data flags. Written using an input param for official user-processes. Hard-coded 0 for BcatSaveData.
| [[Flash_Filesystem|SystemSaveDataId]] (0 for SaveData)
|-
|-
| 0x24
| 0x20
| 0x1
| 0x1
| [[#SaveDataSpaceId]]. Official user-processes only uses 0 here for SystemSaveData, 1 for SaveData/DeviceSaveData/BcatSaveData.
| [[#SaveDataType]]
|-
|-
| 0x25
| 0x21
| 0x1
| 0x1
| Unknown. 0 for SystemSaveData/SaveData.
| [[#SaveDataRank]]
|-
|-
| 0x26
| 0x22
| 0x1A
| 0x2
| Not initialized for SystemSaveData/SaveData.
| SaveDataIndex
|}
|-
| 0x24
| 0x4
| Padding
|-
| 0x28
| 0x8
| 0 for SystemSaveData/SaveData.
|-
| 0x30
| 0x8
| 0 for SystemSaveData/SaveData.
|-
| 0x38
| 0x8
| 0 for SystemSaveData/SaveData.
|}
 
Total size is 0x40-bytes.
 
For DeviceSaveData, this struct is all-zero except for the [[#SaveDataType]] field (and optionally the ApplicationId if specified).
 
= SaveDataCreationInfo =
This is "nn::fs::SaveDataCreationInfo".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x8
| SaveDataSize
|-
| 0x8
| 0x8
| JournalSize
|-
| 0x10
| 0x8
| AvailableSize</br>0x4000 for SystemSaveData/SaveData/DeviceSaveData/BcatSaveData.
|-
| 0x18
| 0x8
| OwnerId</br>Official user-processes only uses 0 here for SystemSaveData/SaveData. For the dedicated save-creation code with SaveData/DeviceSaveData, this value comes from an input param with official user-processes. For BcatSaveData, this is the hard-coded [[NCM_services#ProgramId|ProgramId]] of the bcat-sysmodule.
|-
| 0x20
| 0x4
| [[#SaveDataFlags]]</br>Written using an input param for official user-processes. Hard-coded 0 for BcatSaveData.
|-
| 0x24
| 0x1
| [[#SaveDataSpaceId]]</br>Official user-processes only uses 0 here for SystemSaveData, 1 for SaveData/DeviceSaveData/BcatSaveData.
|-
| 0x25
| 0x1
| Unknown. 0 for SystemSaveData/SaveData.
|-
| 0x26
| 0x1A
| Not initialized for SystemSaveData/SaveData.
|}
 
Total size is 0x40-bytes.
 
= DeviceSaveData =
This is accessed using the same commands for SaveData with the same input u8, the only difference compared to SaveData is the [[#SaveDataAttribute]].
 
= BcatSaveData =
This is accessed using the same commands for SaveData with the same input u8. The [[#SaveDataAttribute]] is the same as DeviceSaveData (besides the SaveDataType), except that the [[NCM_services#ApplicationId|ApplicationId]] field is always set to <input ApplicationId> (unlike DeviceSaveData where it's optional). See above regarding [[#SaveDataCreationInfo]].
 
The 0x10-byte struct passed to [[#CreateSaveDataFileSystem]] has the first 0x5-bytes set to all-zero.
 
MountSystemBcatSaveData uses [[#OpenSaveDataFileSystemBySystemSaveDataId]] with [[#SaveDataSpaceId]] System. The [[#SaveDataAttribute]] is all-zero, except for the SaveDataType, and SystemSaveDataId is set to the input param.
 
= SaveDataInfo =
This is "nn::fs::SaveDataInfo".


Total size is 0x40-bytes.
= DeviceSaveData =
This is accessed using the same commands for SaveData with the same input u8, the only difference compared to SaveData is the Save-struct.
= BcatSaveData =
This is accessed using the same commands for SaveData with the same input u8. The Save-struct is the same as DeviceSaveData, except that the titleID field is set to <input titleID>. See above regarding SaveCreate-struct.
The 0x10-byte struct passed to [[#CreateSaveDataFileSystem]] has the first 0x5-bytes set to all-zero.
= SaveDataInfo =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
Line 1,516: Line 2,614:
| 0x0
| 0x0
| 0x8
| 0x8
| Unknown saveID
| SaveDataId
|-
|-
| 0x8
| 0x8
Line 1,532: Line 2,630:
| 0x10
| 0x10
| 0x10
| 0x10
| userID
| UserId
|-
|-
| 0x20
| 0x20
| 0x8
| 0x8
| saveID, 0 for regular SaveData.
| SystemSaveDataId (0 for regular SaveData)
|-
|-
| 0x28
| 0x28
| 0x8
| 0x8
| Application titleID, for regular SaveData.
| [[NCM_services#ApplicationId|ApplicationId]] (for regular SaveData)
|-
|-
| 0x30
| 0x30
Line 1,548: Line 2,646:
| 0x38
| 0x38
| 0x2
| 0x2
| Save data index
| SaveDataIndex
|-
|-
| 0x3A
| 0x3A
| 0x1
| 0x1
| Save data 'rank' or 'precedence'. 0 if this save data is considered the primary save data. 1 if it's considered the secondary save data.
| [[#SaveDataRank]]
|-
|-
| 0x3B
| 0x3B
Retrieved from "https://switchbrew.org/wiki/Filesystem_services"