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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 code is mounted).
| 1 || [[#IsArchivedProgram]]
|-
|-
| 2 || [4.0.0+] SetCurrentProcess || PID descriptor ||
| 2 || [4.0.0+] [[#SetCurrentProcess]]
|}
|}
== OpenCodeFileSystem ==
Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].
[10.0.0+] Now takes an additional type-0x1A output buffer.
[16.0.0+] Now takes an additional input [[#ContentAttributes]].
[17.0.0+] Now takes a type-0x6 output buffer instead of a type-0x1A output buffer.
[20.0.0+] Now no longer takes a type-0x19 input buffer containing a [[#FspPath]] and instead takes an input [[NCM_services#StorageId|StorageId]].
== IsArchivedProgram ==
Takes an input u64 ProcessId. Returns a bool (1 if the process id's [[#FspPath]] ends in ".nca").
== SetCurrentProcess ==
Takes an input u64 ProcessId. No output.


= 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 an input [[NCM_services#StorageId|StorageId]], an input u64 ProcessId, an input [[NCM_services#ProgramId|ProgramId]], a type-0x5 input buffer containing an [[NPDM#ACID|ACID]] [[NPDM#FsAccessControl|FsAccessControl]], and a type-0x5 input buffer containing an [[NPDM#ACI0|ACI0]] [[NPDM#FsAccessControl|FsAccessControl]].


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.
[20.0.0+] Now takes an additional input [[#FsAccessControlRestrictionMode]].


== UnregisterProgram ==
== UnregisterProgram ==
Takes a pid. Removes registered FS permissions for that PID.
Takes an input u64 ProcessId. No output.
 
Removes registered FS permissions for that PID.


== SetEnabledProgramVerification ==
== SetEnabledProgramVerification ==
Seems to sets a global flag to inputval & 1.
Takes an input bool. No output.


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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| 7 || [2.0.0+] [[#OpenFileSystemWithPatch]]
| 7 || [2.0.0+] [[#OpenFileSystemWithPatch]]
|-
|-
| 8 || [2.0.0+] [[#OpenFileSystemWithId]]
| 8 || [16.0.0+] [[#OpenFileSystemWithIdObsolete]] ([2.0.0-15.0.1] OpenFileSystemWithId)
|-
|-
| 9 || [3.0.0+] OpenDataFileSystemByApplicationId
| 9 || [3.0.0+] OpenDataFileSystemByProgramId
|-
| 10 || [16.0.0+] [[#OpenFileSystemWithId]]
|-
|-
| 11 || [[#OpenBisFileSystem]]
| 11 || [[#OpenBisFileSystem]]
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|-
|-
| 28 || [4.0.0+] DeleteSaveDataFileSystemBySaveDataAttribute
| 28 || [4.0.0+] DeleteSaveDataFileSystemBySaveDataAttribute
|-
| 29 || [19.0.0+] IsInitializationMode
|-
|-
| 30 || [[#OpenGameCardStorage]]
| 30 || [[#OpenGameCardStorage]]
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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
|-
| 37 || [14.0.0+] CreateSaveDataFileSystemWithCreationInfo2
|-
| 38 || [20.0.0+] DetachSdCard
|-
|-
| 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+] OpenSaveDataInfoReaderBySaveDataFilter (Unofficial name, takes a total of 0x50-bytes of input, returns an #ISaveDataInfoReader)
| 68 || [6.0.0+] [[#OpenSaveDataInfoReaderWithFilter]]
|-
| 69 || [8.0.0+] ReadSaveDataFileSystemExtraDataBySaveDataAttribute
|-
| 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]]
|-
| 87 || [11.0.0+] [[#OpenSaveDataTransferManagerForRepair]]
|-
|-
| 100 || OpenImageDirectoryFileSystem
| 100 || OpenImageDirectoryFileSystem
|-
| 101 || [11.0.0+] OpenBaseFileSystem
|-
| 102 || [12.0.0+] FormatBaseFileSystem
|-
|-
| 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]]
|-
|-
| 200 || OpenDataStorageByCurrentProcess
| 200 || OpenDataStorageByCurrentProcess
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|-
|-
| 203 || OpenPatchDataStorageByCurrentProcess
| 203 || OpenPatchDataStorageByCurrentProcess
|-
| 204 || [7.0.0+] [[#OpenDataFileSystemWithProgramIndex]]
|-
| 205 || [7.0.0+] [[#OpenDataStorageWithProgramIndex]]
|-
| 206 || [13.0.0+] OpenDataStorageByPath
|-
| 207 || [15.0.0+] OpenDataFileSystemByDataId
|-
|-
| 400 || [[#OpenDeviceOperator]]
| 400 || [[#OpenDeviceOperator]]
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|-
|-
| 501 || [[#OpenGameCardDetectionEventNotifier]]
| 501 || [[#OpenGameCardDetectionEventNotifier]]
|-
| 502 || [20.0.0+] OpenSdCardAwakenReadyEventNotifier
|-
| 503 || [19.0.0+] OpenGameCardAwakenReadyEventNotifier
|-
|-
| 510 || [5.0.0+] OpenSystemDataUpdateEventNotifier
| 510 || [5.0.0+] OpenSystemDataUpdateEventNotifier
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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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| 608 || [2.0.0+] UnregisterAllExternalKey
| 608 || [2.0.0+] UnregisterAllExternalKey
|-
|-
| 609 || [2.0.0+] GetRightsIdByPath
| 609 || [2.0.0-15.0.1] GetRightsIdByPath
|-
|-
| 610 || [3.0.0+] GetRightsIdAndKeyGenerationByPath
| 610 || [3.0.0+] GetRightsIdAndKeyGenerationByPath
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|-
|-
| 616 || [6.0.0+] [[#GetSaveDataCommitId]]
| 616 || [6.0.0+] [[#GetSaveDataCommitId]]
|-
| 617 || [7.0.0+] UnregisterExternalKey
|-
| 618 || [17.0.0+] GetProgramId
|-
|-
| 620 || [2.0.0+] [[#SetSdCardEncryptionSeed]]
| 620 || [2.0.0+] [[#SetSdCardEncryptionSeed]]
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| 631 || [4.0.0+] IsSdCardAccessible
| 631 || [4.0.0+] IsSdCardAccessible
|-
|-
| 640 || [4.0.0+] IsSignedSystemPartitionOnSdCardValid
| 632 || [19.0.0+] TestExternalKey
|-
| 640 || [4.0.0-7.0.1] IsSignedSystemPartitionOnSdCardValid
|-
| 650 || [S2]
|-
|-
| 700 || [5.0.0+] OpenAccessFailureResolver
| 651 || [S2]
|-
| 660 || [S2]
|-
| 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
|-
|-
| 1000 || SetBisRootForHost
| 810 || [7.0.0+] RegisterProgramIndexMapInfo
|-
|-
| 1001 || SetSaveDataSize
| 820 || [19.0.0+] GetContentStorageInfoIndex
|-
|-
| 1002 || SetSaveDataRootPath
| 1000 || [1.0.0-9.2.0] SetBisRootForHost
|-
| 1001 || [[#SetSaveDataSize]]
|-
| 1002 || [[#SetSaveDataRootPath]]
|-
|-
| 1003 || DisableAutoSaveDataCreation
| 1003 || DisableAutoSaveDataCreation
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| 1009 || [4.0.0+] GetAndClearMemoryReportInfo
| 1009 || [4.0.0+] GetAndClearMemoryReportInfo
|-
|-
| 1010 || [5.1.0+] SetDataStorageRedirectTarget
| 1010 || [5.1.0-6.2.0] SetDataStorageRedirectTarget
|-
|-
| 1100 || [4.0.0+] OverrideSaveDataTransferTokenSignVerificationKey
| 1011 || [7.0.0+] [[#GetProgramIndexForAccessLog]]
|-
|-
| 1110 || [6.0.0+] CorruptSaveDataFileSystemBySaveDataSpaceId2
| 1012 || [9.0.0+] GetFsStackUsage
|-
|-
| 1200 || [6.0.0+] OpenMultiCommitManager (No input, returns an output #IMultiCommitManager)
| 1013 || [9.0.0+] UnsetSaveDataRootPath
|}
 
== Permissions ==
Every time permissions are checked, the process registration [[#fsp-pr]] is loaded using the session processID. The permission data is populated with data from the [[NPDM]].
 
If the processID is <= 6 (which happens only for built-in sysmodules), it will use a hardcoded registration data. The default mask in this case is 0x8000000000000000.
 
Note that the functions check whether or not at least one bit is set in the mask. This means that, you don't need to set 0xFFFFFFFFFFFFFFFF to get all permissions: it suffices to set 0x8000000000000000.
 
If the code were to request an invalid input type, panic. But this never happens.
 
=== RwPermissions ===
{| class="wikitable" border="1"
|-
|-
! Type(s) || Mask || Name || Value || Used by
| 1014 || [10.0.0-10.2.0] OutputMultiProgramTagAccessLog
|-
|-
| 0x0 || 0x8000000000000801 || CanMountLogo || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 1016 || [11.0.0+] FlushAccessLogOnSdCard
|-
|-
| 0x1 || 0x8000000000000801 || CanMountContentMeta || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 1017 || [11.0.0+] OutputApplicationInfoAccessLog
|-
|-
| 0x2 || 0x8000000000000801 || CanMountContentControl || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 1018 || [13.0.0+] SetDebugOption
|-
|-
| 0x3 || 0x8000000000000801 || CanMountContentManual || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 1019 || [13.0.0+] UnsetDebugOption
|-
|-
| 0x4 || 0x8000000000000801 || CanMountContentData || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 1020 || [18.0.0+] OpenMemoryStressor
|-
|-
| 0x5 || 0x8000000000000801 || CanMountApplicationPackage || 1 || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 1100 || [4.0.0-17.0.1] OverrideSaveDataTransferTokenSignVerificationKey
|-
|-
| 0x6 || 0x8000000000000000 || CanMountSaveDataStorage || 3 ||
| 1101 || [18.0.0+] OverrideSaveDataTransferKeyForTest
|-
|-
| 0x7 || 0x8000000000000800 || CanMountContentStorage || 3 || [[#OpenContentStorageFileSystem]]
| 1110 || [6.0.0+] CorruptSaveDataFileSystemByOffset
|-
|-
| 0x8 || 0x8000000000001000 || CanMountImageAndVideoStorage || 3 || [[#OpenImageDirectoryFileSystem]]
| 1200 || [6.0.0+] [[#OpenMultiCommitManager]]
|-
|-
| 0x9 || 0x8000000200000000<br/>([1.0.0-5.1.0] 0x8000000000000084) || CanMountCloudBackupWorkStorage || 3 || OpenCloudBackupWorkStorageFileSystem
| 1300 || [10.0.0+] [[#OpenBisWiper]]
|-
|-
| 0xA || 0x8000000000000084<br/>([1.0.0-5.1.0] 0x8000000000000080) || CanMountBisCalibrationFile || 3 || [[#OpenBisFileSystem]]
| 1400 || [15.0.0+] NotifyErrorContextServiceReady
|}
 
== Permissions ==
Every time permissions are checked, the process registration [[#fsp-pr]] is loaded using the session processID. The permission data is populated with data from the [[NPDM]].
 
If the processID is <= 6 (which happens only for built-in sysmodules), it will use a hardcoded registration data. The default mask in this case is 0x8000000000000000.
 
Note that the functions check whether or not at least one bit is set in the mask. This means that, you don't need to set 0xFFFFFFFFFFFFFFFF to get all permissions: it suffices to set 0x8000000000000000.
 
If nn::spl::IsDebugMode() is disabled (retail behavior), the FS sysmodule masks the permission descriptor with 0x3FFFFFFFFFFFFFFF upon process registration.
 
If the code were to request an invalid input type, panic. But this never happens.
 
The output values for [[#ReadWrite]] CanMountRegisteredUpdatePartition and [[#Call]] CanRegisterUpdatePartition are masked with the cached value of [[SMC#IsDebugMode|DebugMode]].
 
=== ReadWrite ===
{| class="wikitable" border="1"
|-
|-
| 0xB || 0x8000000000000080<br/>([1.0.0-5.1.0] 0x8000000000008080) || CanMountBisSafeMode || 3 || [[#OpenBisFileSystem]]
! AccessibilityType || Name || Mask || Permission || Used by
|-
|-
| 0xC || 0x8000000000008080 || CanMountBisUser || 3 || [[#OpenBisFileSystem]]
| 0x0 || CanMountLogo || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0xD || 0x8000000000008080<br/>([1.0.0-5.1.0] 0x8000000000000080) || CanMountBisSystem || 3 || [[#OpenBisFileSystem]]
| 0x1 || CanMountContentMeta || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0xE || 0x8000000000000080<br/>([1.0.0-2.3.0] 0xC000000000200000) || CanMountBisSystemProperEncryption || 3 || [[#OpenBisFileSystem]]
| 0x2 || CanMountContentControl || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0xF || 0x8000000000000080<br/>([3.0.0-5.1.0] 0xC000000000200000)<br/>([1.0.0-2.3.0] 0x8000000000000010) || CanMountBisSystemProperPartition || 3 || [[#OpenBisFileSystem]]
| 0x3 || CanMountContentManual || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0x10 || 0xC000000000200000<br/>([3.0.0-5.1.0] 0x8000000000000010)<br/>([1.0.0-2.3.0] 0x8000000000040020) || CanMountSdCard || 3 || [[#OpenSdCardFileSystem]]
| 0x4 || CanMountContentData || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0x11 || 0x8000000000000010<br/>([3.0.0-5.1.0] 0x8000000000040020)<br/>([1.0.0-2.3.0] 0x8000000000000028) || CanMountGameCard || 3 || [[#OpenGameCardFileSystem]]
| 0x5 || CanMountApplicationPackage || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
|-
|-
| 0x12 || 0x8000000000040020<br/>([3.0.0-5.1.0] 0x8000000000000028)<br/>([1.0.0-2.3.0] 0x8000000000000020) || CanMountDeviceSaveData || 3 || [[#OpenSaveDataFileSystem]]
| 0x6 || CanMountSaveDataStorage || 0x8000000000000000 || RW ||
|-
|-
| 0x13 || 0x8000000000000028<br/>([1.0.0-5.1.0] 0x8000000000000020) || CanMountSystemSaveData || 3 || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
| 0x7 || CanMountContentStorage || 0x8000000000000800 || RW || [[#OpenContentStorageFileSystem]]
|-
|-
| 0x14 || 0x8000000000000020<br/>([1.0.0-2.3.0] 0x8000000000010082) || CanMountOthersSaveData || 3 || [[#OpenSaveDataFileSystem]]
| 0x8 || CanMountImageAndVideoStorage ||0x8000000000001000 || RW || [[#OpenImageDirectoryFileSystem]]
|-
|-
| 0x15 || 0x8000000000000020<br/>([3.0.0-5.1.0] 0x8000000000010082)<br/>([1.0.0-2.3.0] 0x8000000000010080) || CanMountOthersSystemSaveData || 3 || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
| 0x9 || CanMountCustomStorage0 || 0x8000000000000000 || RW || OpenCustomStorageFileSystem
|-
|-
| 0x16 || 0x8000000000010082<br/>([1.0.0-5.1.0] 0x8000000000010080) || CanOpenBisPartitionBootPartition1Root || 3 || [[#OpenBisStorage]]
| 0xA || CanMountBisCalibrationFile || 0x8000000000000084 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x17 || 0x8000000000010080<br/>([3.0.0-5.1.0] 0x8000000000000080)<br/>([1.0.0-2.3.0] 0x8000000000010080) || CanOpenBisPartitionBootPartition2Root || 3 || [[#OpenBisStorage]]
| 0xB || CanMountBisSafeMode || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x18 || 0x8000000000000080<br/>([1.0.0-5.1.0] 0x8000000000010080) || CanOpenBisPartitionUserDataRoot || 3 || [[#OpenBisStorage]]
| 0xC || CanMountBisUser || 0x8000000000008080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x19 || 0x8000000000010080 || CanOpenBisPartitionBootConfigAndPackage2Part1 || 3 || [[#OpenBisStorage]]
| 0xD || CanMountBisSystem || 0x8000000000008080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x1A || 0x8000000000010080 || CanOpenBisPartitionBootConfigAndPackage2Part2 || 3 || [[#OpenBisStorage]]
| 0xE || CanMountBisSystemProperEncryption || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x1B || 0x8000000000010080 || CanOpenBisPartitionBootConfigAndPackage2Part3 || 3 || [[#OpenBisStorage]]
| 0xF || CanMountBisSystemProperPartition || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
|-
|-
| 0x1C || 0x8000000000010080 || CanOpenBisPartitionBootConfigAndPackage2Part4 || 3 || [[#OpenBisStorage]]
| 0x10 || CanMountSdCard || 0xC000000000200000 || RW || [[#OpenSdCardFileSystem]]
|-
|-
| 0x1D || 0x8000000000010080<br/>([1.0.0-2.3.0] 0x8000000000000084) || CanOpenBisPartitionBootConfigAndPackage2Part5 || 3 || [[#OpenBisStorage]]
| 0x11 || CanMountGameCard || 0x8000000000000010 || R- || [[#OpenGameCardFileSystem]]
|-
|-
| 0x1E || 0x8000000000010080<br/>([1.0.0-5.1.0] 0x8000000000000084) || CanOpenBisPartitionBootConfigAndPackage2Part6 || 3 || [[#OpenBisStorage]]
| 0x12 || CanMountDeviceSaveData || 0x8000000000040020 || RW || [[#OpenSaveDataFileSystem]]
|-
|-
| 0x1F || 0x8000000000000084<br/>([1.0.0-2.3.0] 0x8000000000000080) || CanOpenBisPartitionCalibrationBinary || 3 || [[#OpenBisStorage]]
| 0x13 || CanMountSystemSaveData || 0x8000000000000028 || RW || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
|-
|-
| 0x20 || 0x8000000000000084<br/>([1.0.0-5.1.0] 0x8000000000000080) || CanOpenBisPartitionCalibrationFile || 3 || [[#OpenBisStorage]]
| 0x14 || CanMountOthersSaveData || 0x8000000000000020 || RW || [[#OpenSaveDataFileSystem]]
|-
|-
| 0x21 || 0x8000000000000080 || CanOpenBisPartitionSafeMode || 3 || [[#OpenBisStorage]]
| 0x15 || CanMountOthersSystemSaveData || 0x8000000000000020 || RW || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
|-
|-
| 0x22 || 0x8000000000000080 || CanOpenBisPartitionUser || 3 || [[#OpenBisStorage]]
| 0x16 || CanOpenBisPartitionBootPartition1Root || 0x8000000000010082 || RW || [[#OpenBisStorage]]
|-
|-
| 0x23 || 0x8000000000000080<br/>([1.0.0-2.3.0] 0xC000000000200000) || CanOpenBisPartitionSystem || 3 || [[#OpenBisStorage]]
| 0x17 || CanOpenBisPartitionBootPartition2Root || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x24 || 0x8000000000000080<br/>([1.0.0-2.3.0] 0x8000000000000100) || CanOpenBisPartitionSystemProperEncryption || 3 || [[#OpenBisStorage]]
| 0x18 || CanOpenBisPartitionUserDataRoot || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x25 || 0x8000000000000080<br/>([3.0.0-5.1.0] 0xC000000000200000)<br/>([1.0.0-2.3.0] 0x8000000000100008) || CanOpenBisPartitionSystemProperPartition || 3 || [[#OpenBisStorage]]
| 0x19 || CanOpenBisPartitionBootConfigAndPackage2Part1 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x26 || 0xC000000000200000<br/>([3.0.0-5.1.0] 0x8000000000000100)<br/>([1.0.0-2.3.0] 0xC000000000400000) || CanOpenSdCardStorage || ||
| 0x1A || CanOpenBisPartitionBootConfigAndPackage2Part2 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [3.0.0+] 0x27 || 0x8000000000000100<br/>([1.0.0-5.1.0] 0x8000000000100008) || CanOpenGameCardStorage || 3 || [[#OpenGameCardStorage]],  [[#EraseGameCard]] (bit1), [[#WriteToGameCard]] (bit1), [[#GetGameCardErrorInfo]] (bit1), [[#EraseAndWriteParamDirectly]] (bit1), [[#ReadParamDirectly]] (bit1), [[#ForceEraseGameCard]] (bit1)
| 0x1B || CanOpenBisPartitionBootConfigAndPackage2Part3 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [3.0.0+] 0x28 || 0x8000000000100008<br/>([1.0.0-5.1.0] 0xC000000000400000) || CanMountSystemDataPrivate || 1 || [[#OpenFileSystem]], [[#OpenDataStorageByDataId]]
| 0x1C || CanOpenBisPartitionBootConfigAndPackage2Part4 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [4.0.0+] 0x29 || 0xC000000000400000<br/>([1.0.0-5.1.0] 0x8000000000010000) || CanMountHost || 3 || [[#OpenHostFileSystem]]
| 0x1D || CanOpenBisPartitionBootConfigAndPackage2Part5 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [5.0.0+] 0x2A || 0x8000000000010000<br/>([1.0.0-5.1.0] 0x8000000000000000) || CanMountRegisteredUpdatePartition || 1 || [[#OpenRegisteredUpdatePartition]]
| 0x1E || CanOpenBisPartitionBootConfigAndPackage2Part6 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
|-
|-
| [6.0.0+] 0x2B || 0x8000000000000000 || CanOpenSaveDataInternalStorage || 3 || [[#OpenSaveDataInternalStorageFileSystem]]
| 0x1F || CanOpenBisPartitionCalibrationBinary || 0x8000000000000084 || RW || [[#OpenBisStorage]]
|}
|-
 
| 0x20 || CanOpenBisPartitionCalibrationFile || 0x8000000000000084 || RW || [[#OpenBisStorage]]
=== BoolPermissions ===
{| class="wikitable" border="1"
|-
|-
! Type(s) || Mask || Name || Used by
| 0x21 || CanOpenBisPartitionSafeMode || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x0 || 0x8000000000000080 || CanInvalidateBisCache || [[#InvalidateBisCache]]
| 0x22 || CanOpenBisPartitionUser || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x1 || 0x8000000000000080 || CanEraseMmc || [[#EraseMmc]]
| 0x23 || CanOpenBisPartitionSystem || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x2 || 0x8000000000000010 || CanGetGameCardDeviceCertificate || [[#GetGameCardDeviceCertificate]]
| 0x24 || CanOpenBisPartitionSystemProperEncryption || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x3 || 0x8000000000000010 || CanGetGameCardIdSet || [[#GetGameCardIdSet]]
| 0x25 || CanOpenBisPartitionSystemProperPartition || 0x8000000000000080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x4 || 0x8000000000000200 || CanFinalizeGameCardDriver || [[#FinalizeGameCardDriver]]
| 0x26 || CanOpenBisPartitionDeviceTreeBlob || 0x8000002000000080 || RW || [[#OpenBisStorage]]
|-
|-
| 0x5 || 0x8000000000000200 || CanGetGameCardAsicInfo || [[#GetGameCardAsicInfo]]
| [3.0.0+] 0x27 || CanOpenSdCardStorage || 0xC000000000200000 || RW ||  
|-
|-
| 0x6 || 0x8000000000002020 || CanCreateSaveData || [[#CreateSaveDataFileSystem]]
| [3.0.0+] 0x28 || CanOpenGameCardStorage || 0x8000000000000100 || RW || [[#OpenGameCardStorage]], [[#EraseGameCard]] (bit1), [[#WriteToGameCard]] (bit1), [[#GetGameCardErrorInfo]] (bit1), [[#EraseAndWriteParamDirectly]] (bit1), [[#ReadParamDirectly]] (bit1), [[#ForceEraseGameCard]] (bit1)
|-
|-
| 0x7 || 0x8000000000000060 || CanDeleteSaveData || [[#DeleteSaveDataFileSystem]], [[#RegisterSaveDataFileSystemAtomicDeletion]]
| [4.0.0+] 0x29 || CanMountSystemDataPrivate || 0x8000000000100008 || R- || [[#OpenFileSystem]], [[#OpenDataStorageByDataId]]
|-
|-
| 0x8 || 0x8000000000000028 || CanCreateSystemSaveData || [[#CreateSaveDataFileSystemBySystemSaveDataId]]
| [5.0.0+] 0x2A || CanMountHost || 0xC000000000400000 || RW || [[#OpenHostFileSystem]]
|-
|-
| 0x9 || 0x8000000000000020 || CanCreateOthersSystemSaveData || [[#CreateSaveDataFileSystemBySystemSaveDataId]]
| [6.0.0+] 0x2B || CanMountRegisteredUpdatePartition || 0x8000000000010000 || R- || [[#OpenRegisteredUpdatePartition]]
|-
|-
| 0xA || 0x8000000000004028 || CanDeleteSystemSaveData || [[#DeleteSaveDataFileSystem]], [[#RegisterSaveDataFileSystemAtomicDeletion]]
| [7.0.0+] 0x2C || CanOpenSaveDataInternalStorage || [-19.0.0] 0x8000000000000000 [20.0.0+] 0x8000000000000020 || RW || [[#OpenSaveDataInternalStorageFileSystem]]
|-
|-
| 0xB || 0x8000000000000060 || CanOpenSaveDataInfoReader || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
| [7.0.0+] 0x2D || CanMountTemporaryDirectory || 0xC000000000000000 || RW ||  
|-
|-
| 0xC || 0x8000000000004020 || CanOpenSaveDataInfoReaderForSystem || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
| [11.0.0+] 0x2E || CanMountAllBaseFilesystem || 0x8000000000000000 || RW || OpenBaseFileSystem
|-
|-
| 0xD || 0x8000000000000040<br/>([1.0.0-5.1.0] 0x8000000000020000) || || OpenSaveDataInfoReaderBySaveDataFilter
| [15.0.0+] 0x2F || CanNotMount || 0x0000000000000000 || -- || OpenCustomStorageFileSystem
|}
 
=== Call ===
{| class="wikitable" border="1"
|-
|-
| 0xE || 0x8000000000020000<br/>([1.0.0-5.1.0] 0x8000000000000400) || CanOpenSaveDataMetaFile || [[#OpenSaveDataMetaFile]]
! OperationType || Name || Mask || Used by
|-
|-
| 0xF || 0x8000000000000400<br/>([1.0.0-5.1.0] 0x8000000000004060) || CanSetCurrentPosixTime || [[#SetCurrentPosixTime]], [[#SetCurrentPosixTimeWithTimeDifference]]
| 0x0 || CanInvalidateBisCache || 0x8000000000000080 || [[#InvalidateBisCache]]
|-
|-
| 0x10 || 0x8000000000004060<br/>([1.0.0-5.1.0] 0x8000000000080000) || CanReadSaveDataFileSystemExtraData || [[#ReadSaveDataFileSystemExtraData]]
| 0x1 || CanEraseMmc || 0x8000000000000080 || EraseMmc
|-
|-
| 0x11 || 0x8000000000080000 || CanSetGlobalAccessLogMode || [[#SetGlobalAccessMode]]
| [20.0.0+] 0x2 || || 0x8000100000000080 ||
|-
|-
| 0x12 || 0x8000000000080000<br/>([1.0.0-5.1.0] Invalid) || CanSetSpeedEmulationMode || [[#SetSpeedEmulationMode]]
| [-19.0.0] 0x2 [20.0.0+] 0x3 || CanGetGameCardDeviceCertificate || 0x8000000000000010 || GetGameCardDeviceCertificate
|-
|-
| 0x13 || Invalid<br/>([1.0.0-5.1.0] 0xC000000000800000) || ||  
| [-19.0.0] 0x3 [20.0.0+] 0x4 || CanGetGameCardIdSet || 0x8000000000000010 || GetGameCardIdSet
|-
|-
| 0x14 || 0xC000000000800000<br/>([1.0.0-5.1.0] 0xC000000001000000) || CanFillBis || [[#CreatePaddingFile]], [[#DeleteAllPaddingFiles]]
| [-19.0.0] 0x4 [20.0.0+] 0x5 || CanFinalizeGameCardDriver || 0x8000000000000200 || FinalizeGameCardDriver
|-
|-
| 0x15 || 0xC000000001000000<br/>([5.0.0-5.1.0] 0x8000000001000060)<br/>([1.0.0-4.1.0] 0xC000000002000000) || CanCorruptSaveData || [[#CorruptSaveDataFileSystem]], [[#CorruptSaveDataFileSystemBySaveDataSpaceId]]
| [-19.0.0] 0x5 [20.0.0+] 0x6 || CanGetGameCardAsicInfo || 0x8000000000000200 || GetGameCardAsicInfo
|-
|-
| [2.0.0+] 0x16 || 0x8000000001000060<br/>([5.0.0-5.1.0] 0x8000000000000060)<br/>([1.0.0-4.1.0] 0x8000000004000000) || CanCorruptSystemSaveData || [[#CorruptSaveDataFileSystem]], [[#CorruptSaveDataFileSystemBySaveDataSpaceId]]
| [-19.0.0] 0x6 [20.0.0+] 0x7 || CanGetGameCardAsicCertificate || 0x8000000000000200 || GetGameCardAsicCertificate
|-
|-
| [2.0.0+] 0x17 || 0x8000000000000060<br/>([5.0.0-5.1.0] 0xC000000002000000)<br/>([1.0.0-4.1.0] 0x8000000008000000) || CanVerifySaveData || [[#VerifySaveDataFileSystem]], [[#VerifySaveDataFileSystemBySaveDataSpaceId]]
| [20.0.0+] 0x8 || || 0x8000100000000080 ||
|-
|-
| [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]]
| [20.0.0+] 0x9 || || 0x8000100000000080 ||
|-
|-
| [2.0.0+] 0x19 || 0x8000000004000000<br/>([5.0.0-5.1.0] 0x8000000008000000)<br/>([1.0.0-4.1.0] 0x8000000000000800) || CanFormatSdCard || [[#FormatSdCardFileSystem]]
| [20.0.0+] 0xA || || 0x8000080000000000 ||
|-
|-
| [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]]
| [20.0.0+] 0xB || || 0x8000000000000010 ||
|-
|-
| [3.0.0+] 0x1B || 0x8000000010000000<br/>([5.0.0-5.1.0] 0x8000000000000800)<br/>([1.0.0-4.1.0] 0x8000000000002020) || CanRegisterExternalKey || [[#RegisterExternalKey]], [[#UnregisterAllExternalKey]]
| [20.0.0+] 0xC || || 0x8000100000000080 ||
|-
|-
| [3.0.0+] 0x1C || 0x8000000000000800<br/>([5.0.0-5.1.0] 0x8000000000004020)<br/>([1.0.0-4.1.0] 0x8000000000000028) || CanSetEncryptionSeed || [[#SetSdCardEncryptionSeed]]
| [-19.0.0] 0x7 [20.0.0+] 0xD || CanCreateSaveData || 0x8000000000002020 || [[#CreateSaveDataFileSystem]]
|-
|-
| [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]]
| [-19.0.0] 0x8 [20.0.0+] 0xE || CanDeleteSaveData || 0x8000000000000060 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
|-
|-
| [4.0.0+] 0x1E || 0x8000000000004020<br/>([5.0.0-5.1.0] 0x8000000000002020)<br/>([1.0.0-4.1.0] 0x8000000040000000) || CanWriteSaveDataFileSystemExtraDataFlags || [[#WriteSaveDataFileSystemExtraData]], [[#WriteSaveDataFileSystemExtraData2]]
| [-19.0.0] 0x9 [20.0.0+] 0xF || CanCreateSystemSaveData || 0x8000000000000028 || CreateSaveDataFileSystemBySystemSaveDataId
|-
|-
| [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]]
| [-19.0.0] 0xA [20.0.0+] 0x10 || CanCreateOthersSystemSaveData || 0x8000000000000020 || CreateSaveDataFileSystemBySystemSaveDataId
|-
|-
| [4.0.0+] 0x20 || 0x8000000000000000<br/>([5.0.0-5.1.0] 0x8000000020000000)<br/>([1.0.0-4.1.0] 0x8000000000000000) || CanWriteSaveDataFileSystemExtraDataAll || [[#WriteSaveDataFileSystemExtraData]], [[#WriteSaveDataFileSystemExtraData2]]
| [-19.0.0] 0xB [20.0.0+] 0x11 || CanDeleteSystemSaveData || 0x8000000000004028 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
|-
|-
| [5.0.0+] 0x21 || 0x8000000000002020<br/>([1.0.0-5.1.0] 0x8000000040000000) || CanExtendSaveData || [[#ExtendSaveDataFileSystem]]
| [-19.0.0] 0xC [20.0.0+] 0x12 || CanOpenSaveDataInfoReader || 0x8000000000000060 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
|-
|-
| [5.0.0+] 0x22 || 0x8000000000000028<br/>([1.0.0-5.1.0] 0x0000000080000002) || CanExtendSystemSaveData || [[#ExtendSaveDataFileSystem]]
| [-19.0.0] 0xD [20.0.0+] 0x13 || CanOpenSaveDataInfoReaderForSystem || 0x8000000000004020 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
|-
|-
| [5.0.0+] 0x23 || 0x8000000020000000<br/>([1.0.0-5.1.0] 0x8000000000000000) || CanRegisterUpdatePartition || [[#RegisterUpdatePartition]]
| [-19.0.0] 0xE [20.0.0+] 0x14 || CanOpenSaveDataInfoReaderForInternal || 0x8000000000000040 || [[#OpenSaveDataInfoReaderWithFilter]]
|-
|-
| [5.0.0+] 0x24 || 0x8000000040000000<br/>([1.0.0-5.1.0] 0x8000000000000000) || CanOpenSaveDataTransferManager || [[#OpenSaveDataTransferManager]]
| [-19.0.0] 0xF [20.0.0+] 0x15 || CanOpenSaveDataMetaFile || 0x8000000000020000 || OpenSaveDataMetaFile
|-
|-
| [5.0.0+] 0x25 || 0x8000000200000000<br/>([1.0.0-5.1.0] 0x8000000080200000) || CanOpenSaveDataTransferManagerVersion2 || [[#OpenSaveDataTransferManagerVersion2]]
| [-19.0.0] 0x10 [20.0.0+] 0x16 || CanSetCurrentPosixTime || 0x8000000000000400 || SetCurrentPosixTime, SetCurrentPosixTimeWithTimeDifference
|-
|-
| [5.0.0+] 0x26 || 0x8000000200002000<br/>([1.0.0-5.1.0] 0x8000000080000110) || CanOpenSaveDataTransferProhibiterForCloudBackUp || [[#OpenSaveDataTransferProhibiterForCloudBackUp]]
| [-19.0.0] 0x11 [20.0.0+] 0x17 || CanReadSaveDataFileSystemExtraData || 0x8000000000004060 || [[#ReadSaveDataFileSystemExtraData]]
|-
|-
| [5.0.0+] 0x27 || 0x8000000200002000<br/>([1.0.0-5.1.0] 0x8000000000100008) || CanListApplicationAccessibleSaveDataOwnerId || ListApplicationAccessibleSaveDataOwnerId
| [-19.0.0] 0x12 [20.0.0+] 0x18 || CanSetGlobalAccessLogMode || 0x8000000000080000 || [[#SetGlobalAccessLogMode]]
|-
|-
| [5.0.0+] 0x28 || 0x8000000000000000<br/>([1.0.0-5.1.0] 0x8000000080010000) || CanControlMmcPatrol || [[#SuspendMmcPatrol]], [[#ResumeMmcPatrol]]
| [-19.0.0] 0x13 [20.0.0+] 0x19 || CanSetSpeedEmulationMode || 0x8000000000080000 || SetSpeedEmulationMode
|-
|-
| [5.0.0+] 0x29 || 0x8000000000000000<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanOverrideSaveDataTransferTokenSignVerificationKey || [[#OverrideSaveDataTransferTokenSignVerificationKey]]
| [20.0.0+] 0x1A || || 0x8000000400080000 ||
|-
|-
| [5.0.0+] 0x2A || 0x8000000080200000<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanOpenSdCardDetectionEventNotifier || [[#OpenSdCardDetectionEventNotifier]]
| [20.0.0+] 0x1B || || 0x8000000400080000 ||
|-
|-
| [5.0.0+] 0x2B || 0x8000000080000110<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanOpenGameCardDetectionEventNotifier || [[#OpenGameCardDetectionEventNotifier]]
| [-19.0.0] 0x14 [20.0.0+] 0x1C || CanDebug || 0xC000000000000000 ||  
|-
|-
| [5.0.0+] 0x2C || 0x8000000000100008<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanOpenSystemDataUpdateEventNotifier || [[#OpenSystemDataUpdateEventNotifier]]
| [-19.0.0] 0x15 [20.0.0+] 0x1D || CanFillBis || 0xC000000000800000 || CreatePaddingFile, DeleteAllPaddingFiles
|-
|-
| [5.0.0+] 0x2D || 0x8000000000010000<br/>([1.0.0-5.1.0] 0x0000000080000001) || CanNotifySystemDataUpdateEvent || [[#NotifySystemDataUpdateEvent]]
| [2.0.0-19.0.0] 0x16 [20.0.0+] 0x1E || CanCorruptSaveData || 0xC000000001000000 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
|-
|-
| [5.0.0+] 0x2E || 0x8000000100000000<br/>([1.0.0-5.1.0] 0x8000000040000000) || CanOpenAccessFailureDetectionEventNotifier || [[#OpenAccessFailureResolver]]
| [2.0.0-19.0.0] 0x17 [20.0.0+] 0x1F || CanCorruptSystemSaveData || 0x8000000001000060 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
|-
|-
| [5.0.0+] 0x2F || 0x8000000100000000<br/>([1.0.0-5.1.0] 0x8000000080200000) || CanGetAccessFailureDetectionEvent || [[#GetAccessFailureDetectionEvent]]
| [2.0.0-19.0.0] 0x18 [20.0.0+] 0x20 || CanVerifySaveData || 0x8000000000000060 || [[#VerifySaveDataFileSystem]], VerifySaveDataFileSystemBySaveDataSpaceId
|-
|-
| [5.1.0+] 0x30 || 0x8000000100000000<br/>([1.0.0-5.1.0] 0x8000000080080000) || CanIsAccessFailureDetected || [[#IsAccessFailureDetected]]  
| [2.0.0-19.0.0] 0x19 [20.0.0+] 0x21 || CanDebugSaveData || 0xC000000002000000 || [[#CreateSaveDataFileSystem]], [[#OpenSaveDataFileSystem]], [[#SetSaveDataRootPath]]
|-
|-
| [6.0.0+] 0x31 || 0x8000000100000000 || CanResolveAccessFailure || [[#ResolveAccessFailure]]
| [2.0.0-19.0.0] 0x1A [20.0.0+] 0x22 || CanFormatSdCard || 0x8000000004000000 || FormatSdCardFileSystem
|-
|-
| [6.0.0+] 0x32 || 0x8000000100000000 || CanAbandonAccessFailure || [[#AbandonAccessFailure]]
| [3.0.0-19.0.0] 0x1B [20.0.0+] 0x23 || CanGetRightsId || 0x8000000008000000 || GetRightsId, GetRightsIdAndKeyGenerationByPath, GetRightsIdByPath
|-
|-
| [6.0.0+] 0x33 || 0x8000000040000000 || CanQuerySaveDataInternalStorageTotalSize || [[#QuerySaveDataInternalStorageTotalSize]]
| [3.0.0-19.0.0] 0x1C [20.0.0+] 0x24 || CanRegisterExternalKey || 0x8000000010000000 || RegisterExternalKey, UnregisterAllExternalKey
|-
|-
| [6.0.0+] 0x34 || 0x8000000200000020 || CanGetSaveDataCommitId || [[#GetSaveDataCommitId]]
| [4.0.0-19.0.0] 0x1D [20.0.0+] 0x25 || CanSetEncryptionSeed || 0x8000000000000800 || [[#SetSdCardEncryptionSeed]]
|-
|-
| [6.0.0+] 0x35 || 0x8000000000200000 || CanSetSdCardAccessibility || [[#SetSdCardAccessibility]]
| [4.0.0-19.0.0] 0x1E [20.0.0+] 0x26 || CanWriteSaveDataFileSystemExtraDataTimeStamp || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
|-
|-
| [6.0.0+] 0x36 || 0x4000000000000000 || || SimulateGameCardDetectionEvent, SetGameCardSimulationEvent, ClearGameCardSimulationEvent
| [4.0.0-19.0.0] 0x1F [20.0.0+] 0x27 || CanWriteSaveDataFileSystemExtraDataFlags || 0x8000000000004020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
|-
|-
| [6.0.0+] 0x37 || 0x8000000000080000 || CanSetDataStorageRedirectTarget || SetDataStorageRedirectTarget
| [4.0.0-19.0.0] 0x20 [20.0.0+] 0x28 || CanWriteSaveDataFileSystemExtraDataCommitId || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
|-
|-
| [6.0.0+] 0x38 || 0x8000000000000000 || || [[#CreateSaveDataFileSystem]], CreateSaveDataFileSystemByHashSalt
| [5.0.0-19.0.0] 0x21 [20.0.0+] 0x29 || CanWriteSaveDataFileSystemExtraDataAll || 0x8000000000000000 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
|}
|-
 
| [5.0.0-19.0.0] 0x22 [20.0.0+] 0x2A || CanExtendSaveData || 0x8000000000002020 || ExtendSaveDataFileSystem
== OpenFileSystem ==
|-
Takes a type-0x19 input buffer (ContentPath) and a [[#FileSystemType]] as parameters. Returns an [[#IFileSystem]].
| [5.0.0-19.0.0] 0x23 [20.0.0+] 0x2B || CanExtendSystemSaveData || 0x8000000000000028 || ExtendSaveDataFileSystem
 
|-
[2.0.0+] This function was removed.
| [5.0.0-19.0.0] 0x24 [20.0.0+] 0x2C || CanExtendOthersSystemSaveData || 0x8000000000000020 || ExtendSaveDataFileSystem
 
|-
== SetCurrentProcess ==
| [5.0.0-19.0.0] 0x25 [20.0.0+] 0x2D || CanRegisterUpdatePartition || 0x8000000020000000 || RegisterUpdatePartition
Takes a pid-descriptor.
|-
 
| [5.0.0-19.0.0] 0x26 [20.0.0+] 0x2E || CanOpenSaveDataTransferManager || 0x8000000040000000 || [[#OpenSaveDataTransferManager]]
== OpenFileSystemWithPatch ==
|-
Takes an input [[#FileSystemType]] and an u64 title-id. Returns an [[#IFileSystem]].
| [5.0.0-19.0.0] 0x27 [20.0.0+] 0x2F || CanOpenSaveDataTransferManagerVersion2 || 0x8000000200000000 || [[#OpenSaveDataTransferManagerVersion2]]
 
|-
Web-applet loads the [[#FileSystemType]] (which must be '''ContentManual''') from u32_table[inparam].
| [5.0.0-19.0.0] 0x28 [20.0.0+] 0x30 || CanOpenSaveDataTransferManagerForSaveDataRepair || 0x8000000200000000 || OpenSaveDataTransferManagerForSaveDataRepair
 
|-
Note: web-applet strings refer to both this cmd and [[#OpenFileSystemWithId]] as "MountContent", but official nn_sf_sync symbols use "OpenXX" names.
| [5.0.0-19.0.0] 0x29 [20.0.0+] 0x31 || CanOpenSaveDataTransferManagerForSaveDataRepairTool || 0x8000000000000000 || OpenSaveDataTransferManagerForSaveDataRepair
 
|-
== OpenFileSystemWithId ==
| [5.0.0-19.0.0] 0x2A [20.0.0+] 0x32 || CanOpenOpenSaveDataTransferProhibiter || 0x8000000200002000 || [[#OpenSaveDataTransferProhibiter]]
Takes a type-0x19 input buffer, an [[#FileSystemType]] and an u64 title-id. Returns an [[#IFileSystem]].
|-
 
| [5.0.0-19.0.0] 0x2B [20.0.0+] 0x33 || CanOpenSaveDataMover || 0x8000001000000000 || [[#OpenSaveDataMover]]
The [[#IFileSystem]] must be '''ContentMeta''' if the NCA type is 0 (control).
|-
 
| [5.0.0-19.0.0] 0x2C [20.0.0+] 0x34 || CanOpenBisWiper || 0x8000000000000800 || [[#OpenBisWiper]]
The input buffer is the output string path from [[NS_Services#GetApplicationContentPath|GetApplicationContentPath]].
|-
 
| [5.0.0-19.0.0] 0x2D [20.0.0+] 0x35 || CanListAccessibleSaveDataOwnerId || 0x8000000240002000 || [[#ListAccessibleSaveDataOwnerId]]
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.
|-
 
| [5.0.0-19.0.0] 0x2E [20.0.0+] 0x36 || CanControlMmcPatrol || 0x8000000000000000 || SuspendMmcPatrol, ResumeMmcPatrol
The official "MountApplicationPackage" func uses this with in64=0 and [[#FileSystemType]] '''ApplicationPackage'''.
|-
 
| [5.0.0-19.0.0] 0x2F [20.0.0+] 0x37 || CanOverrideSaveDataTransferTokenSignVerificationKey || 0x8000000000000000 || OverrideSaveDataTransferTokenSignVerificationKey
After the [[#FileSystemType]] specific permissions are checked, it then gets the func retval for permissions-type 0x25 and func0.
|-
 
| [5.1.0-19.0.0] 0x30 [20.0.0+] 0x38 || CanOpenSdCardDetectionEventNotifier || 0x8000000080200000 || [[#OpenSdCardDetectionEventNotifier]]
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.
|-
 
| [20.0.0+] 0x39 ||  || 0x8000000000200000 ||
== 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]].
| [6.0.0-19.0.0] 0x31 [20.0.0+] 0x3A || CanOpenGameCardDetectionEventNotifier || 0x8000000080000110 || [[#OpenGameCardDetectionEventNotifier]]
 
|-
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.
| [20.0.0+] 0x3B || CanOpenGameCardAwakenReadyEventNotifier || 0x8000000080000110 || OpenGameCardAwakenReadyEventNotifier
 
|-
== OpenBisStorage ==
| [6.0.0-19.0.0] 0x32 [20.0.0+] 0x3C || CanOpenSystemDataUpdateEventNotifier || 0x8000000000100008 || OpenSystemDataUpdateEventNotifier
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.
|-
 
| [6.0.0-19.0.0] 0x33 [20.0.0+] 0x3D || CanNotifySystemDataUpdateEvent || 0x8000000000010000 || NotifySystemDataUpdateEvent
== InvalidateBisCache ==
|-
Seems to invalidate the Bis cache for MBR/GPT after overwriting that data via the OpenBisStorage IStorage. Used by [[SystemInitializer]].
| [6.0.0-19.0.0] 0x34 [20.0.0+] 0x3E || CanOpenAccessFailureDetectionEventNotifier || 0x8000000100000000 || [[#OpenAccessFailureDetectionEventNotifier]]
|-
| [6.0.0-19.0.0] 0x35 [20.0.0+] 0x3F || CanGetAccessFailureDetectionEvent || 0x8000000100000000 || GetAccessFailureDetectionEvent
|-
| [6.0.0-19.0.0] 0x36 [20.0.0+] 0x40 || CanIsAccessFailureDetected || 0x8000000100000000 || IsAccessFailureDetected
|-
| [6.0.0-19.0.0] 0x37 [20.0.0+] 0x41 || CanResolveAccessFailure || 0x8000000100000000 || ResolveAccessFailure
|-
| [6.0.0-19.0.0] 0x38 [20.0.0+] 0x42 || CanAbandonAccessFailure || 0x8000000100000000 || AbandonAccessFailure
|-
| [8.0.0-19.0.0] 0x39 [20.0.0+] 0x43 || CanQuerySaveDataInternalStorageTotalSize || 0x8000000040000000 || QuerySaveDataInternalStorageTotalSize
|-
| [9.0.0-19.0.0] 0x3A [20.0.0+] 0x44 || CanGetSaveDataCommitId || 0x8000000200000020 || [[#GetSaveDataCommitId]]
|-
| [20.0.0+] 0x45 ||  || 0x8000000000200000 ||
|-
| [9.0.0-19.0.0] 0x3B [20.0.0+] 0x46 || CanSetSdCardAccessibility || 0x8000000000200000 || SetSdCardAccessibility
|-
| [9.0.0-19.0.0] 0x3C [20.0.0+] 0x47 || CanSimulateDevice || 0x4000000000000000 || SimulateDeviceDetectionEvent, SetSimulationEvent, ClearSimulationEvent
|-
| [9.0.0-19.0.0] 0x3D [20.0.0+] 0x48 || CanCreateSaveDataWithHashSalt || 0x8000000000000000 || [[#CreateSaveDataFileSystem]], [[#CreateSaveDataFileSystemWithHashSalt]]
|-
| [9.0.0-19.0.0] 0x3E [20.0.0+] 0x49 || CanRegisterProgramIndexMapInfo || 0x8000000400000000 || RegisterProgramIndexMapInfo
|-
| [9.0.0-19.0.0] 0x3F [20.0.0+] 0x4A || CanChallengeCardExistence || 0x8000000000000010 || ChallengeCardExistence
|-
| [9.0.0-19.0.0] 0x40 [20.0.0+] 0x4B || CanCreateOwnSaveData || 0x8000000800000000 || [[#CreateSaveDataFileSystem]], CreateSaveDataFileSystemWithHashSalt
|-
| [9.0.0-19.0.0] 0x41 [20.0.0+] 0x4C || CanDeleteOwnSaveData || 0x8000000800000000 || [[#DeleteSaveDataFileSystem]]
|-
| [10.0.0-19.0.0] 0x42 [20.0.0+] 0x4D || CanReadOwnSaveDataFileSystemExtraData || 0x8000000800000000 || [[#ReadSaveDataFileSystemExtraData]]
|-
| [10.0.0-19.0.0] 0x43 [20.0.0+] 0x4E || CanExtendOwnSaveData || 0x8000000800000000 || ExtendSaveDataFileSystem
|-
| [10.2.0-19.0.0] 0x44 [20.0.0+] 0x4F || CanOpenOwnSaveDataTransferProhibiter || 0x8000000800000000 || [[#OpenSaveDataTransferProhibiter]]
|-
| [11.0.0-19.0.0] 0x45 [20.0.0+] 0x50 || CanFindOwnSaveDataWithFilter || 0x8000000800000000 || [[#FindSaveDataWithFilter]]
|-
| [13.0.0-19.0.0] 0x46 [20.0.0+] 0x51 || CanOpenSaveDataTransferManagerForRepair || 0x8000000000000020 || [[#OpenSaveDataTransferManagerForRepair]]
|-
| [13.0.0-19.0.0] 0x47 [20.0.0+] 0x52 || CanSetDebugConfiguration || 0x8000000000000000 || SetDebugOption, UnsetDebugOption
|-
| [15.0.0-19.0.0] 0x48 [20.0.0+] 0x53 || CanOpenDataStorageByPath || 0x8000000000000000 || OpenDataStorageByPath
|-
| [17.0.0-19.0.0] 0x49 [20.0.0+] 0x54|| CanNotifyErrorContextServiceReady || 0x8000004000000000 || NotifyErrorContextServiceReady
|-
| [17.0.0-19.0.0] 0x4A || CanGetProgramId || 0x8000000008000000 || GetProgramId, Removed in 20.0.0
|-
| [20.0.0+] 0x55 || CanGetContentStorageInfo || 0x8000000000000800 ||
|-
| [20.0.0+] 0x56 || CanDetachSdCard || 0x8000000004000000 ||
|-
| [20.0.0+] 0x57 || CanSetSdCardActivationMode || 0x8000000004000000 ||
|}


== DeleteSaveDataFileSystem ==
== OpenFileSystem ==
Takes an input u64.
Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[#FileSystemProxyType]]. Returns an [[#IFileSystem]].


== CreateSaveDataFileSystem ==
[2.0.0+] This function was removed.
Takes a 0x40-byte Save-struct entry, a 0x40-byte SaveCreate-struct entry, and a 0x10-byte input struct.


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.
== SetCurrentProcess ==
Takes an input u64 ProcessId. No output.


Creates regular savedata.
== OpenFileSystemWithPatch ==
Takes an input [[#FileSystemProxyType]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].


== CreateSaveDataFileSystemBySystemSaveDataId ==
The [[#FileSystemProxyType]] must be '''Manual'''.
Takes a 0x40-byte Save-struct entry and a 0x40-byte SaveCreate-struct entry.


Creates savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
Note: web-applet strings refer to both this cmd and [[#OpenFileSystemWithId]] as "MountContent", but official nn_sf_sync symbols use "OpenXX" names.


== OpenGameCardStorage ==
== OpenFileSystemWithIdObsolete ==
Takes two input u32s (gamecard handle, partition ID), and returns an [[#IStorage]] for the [[Gamecard_Format|partition]].
Takes a type-0x19 input buffer containing a [[#FspPath]], an input [[#FileSystemProxyType]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].


== OpenGameCardFileSystem ==
The [[#IFileSystem]] must be '''Meta''' if the NCA type is 0.
Takes two input u32s, with the second u32 located at +4 in rawdata after the first u32. Returns an [[#IFileSystem]].


Mounts a [[Gamecard_Partition|gamecard partition]].
The input buffer is the output string path from [[NS_Services#GetApplicationContentPath|GetApplicationContentPath]].


== OpenSaveDataFileSystem ==
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.
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.


Returns an [[#IFileSystem]].
The official "MountApplicationPackage" func uses this with in64=0 and [[#FileSystemProxyType]] '''Package'''.


Permissions aren't checked until the specified save is successfully found.
After the [[#FileSystemProxyType]] specific permissions are checked, it then gets the func retval for permissions-type 0x25 and func0.


Only one process (specifically only one [[#IFileSystem]] session) can mount a given savedata at any given time (this includes SystemSaveData).
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.


== OpenSaveDataFileSystemBySystemSaveDataId ==
== OpenFileSystemWithId ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte Save-struct entry. Web-applet only uses value0 for the input u8.
Takes a type-0x19 input buffer containing a [[#FspPath]], an input [[#ContentAttributes]], an input [[#FileSystemProxyType]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].


Returns an [[#IFileSystem]].
== OpenBisFileSystem ==
Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[#BisPartitionId]]. Returns an [[#IFileSystem]].


Mounts savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
Official user-process code sets instr[0] = 0 normally.


== ReadSaveDataFileSystemExtraDataBySaveDataSpaceId ==
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.
Takes an input u8 [[#SaveDataSpaceId]], an input u64 saveID, and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].


== ReadSaveDataFileSystemExtraData ==
== OpenBisStorage ==
Takes an input u64 saveID and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].
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.


== OpenSaveDataInfoReader ==
== InvalidateBisCache ==
No input, returns an output [[#ISaveDataInfoReader]].
Seems to invalidate the Bis cache for MBR/GPT after overwriting that data via the OpenBisStorage IStorage. Used by [[SystemInitializer]].


== OpenSaveDataInfoReaderBySaveDataSpaceId ==
== DeleteSaveDataFileSystem ==
Takes an input u8 [[#SaveDataSpaceId]], returns an output [[#ISaveDataInfoReader]].
Takes an input u64.


== OpenContentStorageFileSystem ==
== CreateSaveDataFileSystem ==
Takes a [[#ContentStorageId]]. Invalid values return 0x2EE202.
Takes a 0x40-byte [[#SaveDataAttribute]], a 0x40-byte [[#SaveDataCreationInfo]], and a 0x10-byte input struct which governs creation of a saveMeta file.


Returns an [[#IFileSystem]] with NCA files. The read data from these files is identical to the data read by [[NCM_services#ReadContentIdFile]].
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.


== OpenDataStorageByDataId ==
Creates non-system savedata.
Takes a [[#StorageId]] and a TitleID.


Returns a [[IPC_Marshalling#Domain_message|domain object ID]] implementing the [[#IStorage]] interface for data archives.
== CreateSaveDataFileSystemBySystemSaveDataId ==
Takes a 0x40-byte [[#SaveDataAttribute]] and a 0x40-byte [[#SaveDataCreationInfo]].


== OpenDeviceOperator ==
Creates savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
This command returns a session to a port implementing the [[#IDeviceOperator]] interface.


== OpenSdCardDetectionEventNotifier ==
== OpenGameCardStorage ==
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
Takes two input u32s (gamecard handle, partition ID), and returns an [[#IStorage]] for the [[Gamecard_Format|partition]].


== OpenGameCardDetectionEventNotifier ==
== OpenGameCardFileSystem ==
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
Takes two input u32s, with the second u32 located at +4 in rawdata after the first u32. Returns an [[#IFileSystem]].


== VerifySaveDataFileSystem ==
Mounts a [[Gamecard_Partition|gamecard partition]].
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).
== CreateSaveDataFileSystemWithHashSalt ==
Takes a total of 0xB0-bytes of input, no output.


== GetSaveDataCommitId ==
== OpenSaveDataFileSystem ==
Takes an input u8 and u64, returns an output u64.
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]]. Official user-process code is only known to use value 1 for the u8.


== SetSdCardEncryptionSeed ==
Returns an [[#IFileSystem]].
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.
Permissions aren't checked until the specified save is successfully found.


== SetGlobalAccessLogMode ==
Only one process (specifically only one [[#IFileSystem]] session) can mount a given savedata at any given time (this includes SystemSaveData).
Takes an input u32.


== GetGlobalAccessLogMode ==
== OpenSaveDataFileSystemBySystemSaveDataId ==
Returns an output u32.
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]]. Web-applet only uses value0 for the input u8.


GlobalAccessLogMode is normally 0.
Returns an [[#IFileSystem]].


== OutputAccessLogToSdCard ==
Mounts savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
Takes a type-0x5 input buffer.


The input buffer is the string to output to the log. User-processes normally include a newline at the end.
== OpenReadOnlySaveDataFileSystem ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]], and returns an [[#IFileSystem]].


User-processes only use this when the value previously loaded from [[#GetGlobalAccessLogMode]] has bit1 set.
Mounts SaveData as ReadOnly.


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.
== ReadSaveDataFileSystemExtraDataBySaveDataSpaceId ==
Takes an input u8 [[#SaveDataSpaceId]], an input u64 saveID, and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].


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).
== ReadSaveDataFileSystemExtraData ==
Takes an input u64 saveID and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].


= IStorage =
== OpenSaveDataInfoReader ==
This is "nn::fssrv::sf::IStorage".
No input, returns an output [[#ISaveDataInfoReader]].
 
== OpenSaveDataInfoReaderBySaveDataSpaceId ==
Takes an input u8 [[#SaveDataSpaceId]], returns an output [[#ISaveDataInfoReader]].
 
== FindSaveDataWithFilter ==
Takes a total of 0x50-bytes of input, returns 8-bytes of output and a type-0x6 output buffer.
 
== OpenSaveDataInfoReaderWithFilter ==
Takes a total of 0x50-bytes of input, returns an [[#ISaveDataInfoReader]].
 
== OpenSaveDataTransferManager ==
No input, returns an [[#ISaveDataTransferManager]].


This is the interface for a raw device, usually a block device.
== OpenSaveDataTransferManagerVersion2 ==
No input, returns an [[#ISaveDataTransferManagerWithDivision]].


{| class="wikitable" border="1"
== OpenSaveDataTransferProhibiter ==
|-
Takes an input u64, returns an [[#ISaveDataTransferProhibiter]].
! Cmd || Name || Arguments
|-
| 0 || Read || Takes a type-0x46 buffer, an offset and length
|-
| 1 || Write || Takes a type-0x45 buffer, an offset and length
|-
| 2 || Flush || None
|-
| 3 || SetSize || Takes a size
|-
| 4 || GetSize || None
|-
| 5 || [4.0.0+] OperateRange ||
|}


= IFileSystem =
== ListAccessibleSaveDataOwnerId ==
This is "nn::fssrv::sf::IFileSystem".
Takes a total of 0x10-bytes of input, returns 4-bytes of output and a type-0x6 output buffer.


There are two main implementations of this interface:
== OpenSaveDataTransferManagerForSaveDataRepair ==
No input, returns an output [[#ISaveDataTransferManagerForSaveDataRepair]].


* '''RomFS''': Filesystem implementation statically linked in the binary. Uses an [[#IStorage]] interface as underlying raw device.
== OpenSaveDataMover ==
* '''IPC proxy''': Used for all non-RomFS filesystems. In this case, actual filesystem implementation is in the FS process.
Takes 2 input [[#SaveDataSpaceId]], an input u64 size and a TransferMemory handle. Returns an output [[#ISaveDataMover]].


{| class="wikitable" border="1"
== OpenSaveDataTransferManagerForRepair ==
|-
No input, returns an output [[#ISaveDataTransferManagerForRepair]].
! Cmd || Name
 
|-
== OpenContentStorageFileSystem ==
| 0 || CreateFile
Takes a [[#ContentStorageId]]. Invalid values return 0x2EE202.
|-
 
| 1 || DeleteFile
Returns an [[#IFileSystem]] with NCA files. The read data from these files is identical to the data read by [[NCM_services#ReadContentIdFile]].
|-
 
| 2 || CreateDirectory
== OpenCloudBackupWorkStorageFileSystem ==
|-
Takes 4-bytes of input, returns an [[#IFileSystem]].
| 3 || DeleteDirectory
 
|-
== OpenCustomStorageFileSystem ==
| 4 || DeleteDirectoryRecursively
Takes a [[#CustomStorageId]]. Invalid values return 0x2EE202.
|-
 
| 5 || RenameFile
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.
|-
 
| 6 || RenameDirectory
== OpenDataStorageByDataId ==
|-
Takes a [[NCM_services#StorageId|StorageID]] and a [[NCM_services#DataId|DataId]].
| 7 || [[#GetEntryType]]
 
|-
Returns a [[IPC_Marshalling#Domain_message|domain object ID]] implementing the [[#IStorage]] interface for data archives.
| 8 || [[#OpenFile]]
 
|-
[[NCA|PublicData]] is exempt from the [[#Permissions|permissions]] check.
| 9 || [[#OpenDirectory]]
 
|-
== OpenDataFileSystemWithProgramIndex ==
| 10 || [[#Commit]]
Takes an input u8, returns an [[#IFileSystem]].
|-
| 11 || [[#GetFreeSpaceSize]]
|-
| 12 || [[#GetTotalSpaceSize]]
|-
| 13 || [3.0.0+] [[#CleanDirectoryRecursively]]
|-
| 14 || [3.0.0+] GetFileTimeStampRaw
|-
| 15 || [4.0.0+] QueryEntry
|}


== GetEntryType ==
== OpenDataStorageWithProgramIndex ==
Takes a type-0x9 input buffer for the path and returns [[#DirectoryEntryType]] as an output u32.
Takes an input u8, returns an [[#IStorage]].


== OpenFile ==
== OpenDeviceOperator ==
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:
This command returns a session to a port implementing the [[#IDeviceOperator]] interface.


* When bit 0 is set, the file is Readable: you can use the Read operation.
== OpenSdCardDetectionEventNotifier ==
* When bit 1 is set, the file is Writable: you can use the Write operation.
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
* 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)
 
== OpenGameCardDetectionEventNotifier ==
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
 
== SimulateDeviceDetectionEvent ==
Takes a total of 0xC-bytes of input, no output.


== OpenDirectory ==
== VerifySaveDataFileSystem ==
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 unknown input u64 and a type-0x6 output buffer.


== Commit ==
The input u64 high-byte must be non-zero, otherwise an [[Error_codes|error]] is returned(0xE02).
Like [https://3dbrew.org/wiki/FS:ControlArchive 3DS], this has to be used after writing to savedata for the changes to take affect.


== GetFreeSpaceSize ==
== GetSaveDataCommitId ==
Takes a type-0x9 input buffer for the path and returns an output byte-size u64 for the total free space with this FS.
Takes an input u8 and u64, returns an output u64.


== GetTotalSpaceSize ==
== SetSdCardEncryptionSeed ==
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 in the 0x10 byte SD card encryption seed, and loads it into FS-module state.


== CleanDirectoryRecursively ==
[[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 all-zero except for the byte at offset 0x20. This byte is set to 1 by NS if the SD card has been mounted successfully and is subsequently passed to SetSdCardAccessibility.
Takes a type-0x9 input buffer for the path and clears the contents of the directory specified in the path.


= IDirectory =
== OpenAccessFailureDetectionEventNotifier ==
This is "nn::fssrv::sf::IDirectory".
Takes 8-bytes of input and returns an [[#IEventNotifier]].


{| class="wikitable" border="1"
[8.0.0+] Now takes an additional 8-bytes of input.
|-
! Cmd || Name
|-
| 0 || [[#Read]]
|-
| 1 || [[#GetEntryCount]]
|}


== Read ==
== SetSaveDataSize ==
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.
Takes two input u64s "size" and "journal_size", and writes them to fsp-srv object member variables.


The output buffer contains the read array of [[#DirectoryEntry]]. This doesn't include entries for "." and "..".
These variables are normally initialized with 32 MiB (0x2000000) and 16 MiB (0x1000000), respectively.


== GetEntryCount ==
These variables don't seem to be actually used anywhere else (?)
Returns an u64 for the total number of readable entries.


= DirectoryEntry =
== SetSaveDataRootPath ==
{| class="wikitable" border="1"
Takes an input path, and does snprintf(<fsp-srv object>->m_save_data_root_path, FS_MAX_PATH-1, "/%s", input_path);
|-
! Offset || Size || Description
|-
| 0x0 || 0x300 || Path
|-
| 0x300 || 0x4 || ?
|-
| 0x304 || 0x1 || [[#DirectoryEntryType]]
|-
| 0x305 || 0x3 || Padding?
|-
| 0x308 || 0x8? || Filesize, 0 for directories.
|}


= DirectoryEntryType =
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.
s8 type: 0 = directory, 1 = file.


= IFile =
== SetGlobalAccessLogMode ==
This is "nn::fssrv::sf::IFile".
Takes an input u32.
 
== SetGlobalAccessLogMode ==
Takes an input u32.


{| class="wikitable" border="1"
== GetGlobalAccessLogMode ==
|-
Returns an output u32.
! Cmd || Name
|-
| 0 || Read
|-
| 1 || Write
|-
| 2 || Flush
|-
| 3 || SetSize
|-
| 4 || GetSize
|-
| 5 || [4.0.0+] OperateRange
|}


= ISaveDataInfoReader =
GlobalAccessLogMode is normally 0.
This is "nn::fssrv::sf::ISaveDataInfoReader".


{| class="wikitable" border="1"
== OutputAccessLogToSdCard ==
|-
Takes a type-0x5 input buffer.
! Cmd || Name
 
|-
The input buffer is the string to output to the log. User-processes normally include a newline at the end.
| 0 || [[#ReadSaveDataInfo]]
 
|}
User-processes only use this when the value previously loaded from [[#GetGlobalAccessLogMode]] has bit1 set.
 
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.
 
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).
 
== GetProgramIndexForAccessLog ==
No input, returns two 32-bit values "version" and "program_index".
 
== OpenMultiCommitManager ==
No input, returns an output [[#IMultiCommitManager]].


== ReadSaveDataInfo ==
== OpenBisWiper ==
Takes a type-0x6 output buffer. Returns an output u64 for total output entries. This buffer contains an array of [[#SaveDataInfo]].
Takes an input u64 size and a TransferMemory handle. Returns an output [[#IWiper]].


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).
= IStorage =
This is "nn::fssrv::sf::IStorage".


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


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 787: Line 890:
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || IsSdCardInserted
| 0 || [[#Read]]
|-
|-
| 1 || GetSdCardSpeedMode
| 1 || [[#Write]]
|-
|-
| 2 || [2.0.0+] GetSdCardCid
| 2 || [[#Flush]]
|-
|-
| 3 || [2.0.0+] GetSdCardUserAreaSize
| 3 || [[#SetSize]]
|-
|-
| 4 || [2.0.0+] GetSdCardProtectedAreaSize
| 4 || [[#GetSize]]
|-
|-
| 5 || [2.0.0+] GetAndClearSdCardErrorInfo
| 5 || [4.0.0+] OperateRange
|-
|}
| 100 || GetMmcCid
 
== Read ==
Takes a type-0x46 buffer, an offset and length.
 
== Write ==
Takes a type-0x45 buffer, an offset and length.
 
== Flush ==
No input.
 
== SetSize ==
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.
 
There are two adapter classes to convert between these interfaces:
 
* '''nn::fssrv::detail::FileSystemInterfaceAdapter''': Allows access to an nn::fs::fsa::IFileSystem via the nn::fssrv::sf::IFileSystem interface.
* '''nn::fs::detail::FileSystemServiceObjectAdapter''': Allows access to an nn::fssrv::sf::IFileSystem via the nn::fs::fsa::IFileSystem interface.
 
When the FS process returns a filesystem, it will wrap the filesystem object in a FileSystemInterfaceAdapter to return it over IPC.
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"
|-
|-
| 101 || GetMmcSpeedMode
! Cmd || Name
|-
|-
| 110 || EraseMmc
| 0 || CreateFile
|-
|-
| 111 || GetMmcPartitionSize
| 1 || DeleteFile
|-
|-
| 112 || [2.0.0+] GetMmcPatrolCount
| 2 || CreateDirectory
|-
|-
| 113 || [2.0.0+] GetAndClearMmcErrorInfo
| 3 || DeleteDirectory
|-
|-
| 114 || [2.0.0+] GetMmcExtendedCsd
| 4 || DeleteDirectoryRecursively
|-
|-
| 115 || [4.0.0+] SuspendMmcPatrol
| 5 || RenameFile
|-
|-
| 116 || [4.0.0+] ResumeMmcPatrol
| 6 || RenameDirectory
|-
|-
| 200 || IsGameCardInserted
| 7 || [[#GetEntryType]]
|-
|-
| 201 || EraseGameCard
| 8 || [[#OpenFile]]
|-
|-
| 202 || GetGameCardHandle
| 9 || [[#OpenDirectory]]
|-
|-
| 203 || [[#GetGameCardUpdatePartitionInfo]]
| 10 || [[#Commit]]
|-
|-
| 204 || FinalizeGameCardDriver
| 11 || [[#GetFreeSpaceSize]]
|-
|-
| 205 || GetGameCardAttribute
| 12 || [[#GetTotalSpaceSize]]
|-
|-
| 206 || GetGameCardDeviceCertificate
| 13 || [3.0.0+] [[#CleanDirectoryRecursively]]
|-
|-
| 207 || GetGameCardAsicInfo
| 14 || [3.0.0+] [[#GetFileTimeStampRaw]]
|-
|-
| 208 || GetGameCardIdSet
| 15 || [4.0.0+] QueryEntry
|-
| 209 || WriteToGameCard
|-
| 210 || SetVerifyWriteEnalbleFlag
|-
| 211 || GetGameCardImageHash
|-
|-
| 212 || [2.0.0+] GetGameCardDeviceIdForProdCard
| 16 || [15.0.0+] GetFileSystemAttribute
|-
| 213 || [2.0.0+] EraseAndWriteParamDirectly
|-
| 214 || [2.0.0+] ReadParamDirectly
|-
| 215 || [2.0.0+] ForceEraseGameCard
|-
| 216 || [2.0.0+] GetGameCardErrorInfo
|-
| 217 || [2.1.0+] GetGameCardErrorReportInfo
|-
| 218 || [3.0.0+] GetGameCardDeviceId
|-
| 300 || SetSpeedEmulationMode
|-
| 301 || GetSpeedEmulationMode
|-
| 400 || [5.0.0+] SuspendSdmmcControl
|-
| 401 || [5.0.0+] ResumeSdmmcControl
|-
| 402 || [6.0.0+] GetSdmmcConnectionStatus (Takes a total of 4-bytes of input, returns a total of 8-bytes of output)
|-
| 500 || [6.0.0+] SetGameCardSimulationEvent (Takes a total of 0x14-bytes of input, no output)
|-
| 501 || [6.0.0+] ClearGameCardSimulationEvent (Takes a total of 4-bytes of input, no output)
|}
|}


== GetGameCardUpdatePartitionInfo ==
== GetEntryType ==
Returns a titleID and the title-version for it.
Takes a type-0x9 input buffer for the path and returns [[#DirectoryEntryType]] as an output u32.


* 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.
== OpenFile ==
* Output u64 with ARMS-gamecard: titleID 0100000000000816.
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.
* 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)
 
== OpenDirectory ==
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.


[[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.
== Commit ==
Like [https://3dbrew.org/wiki/FS:ControlArchive 3DS], this has to be used after writing to savedata for the changes to take affect.


= IEventNotifier =
== GetFreeSpaceSize ==
This is "nn::fssrv::sf::IEventNotifier".
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 ==
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).
 
== CleanDirectoryRecursively ==
Takes a type-0x9 input buffer for the path and clears the contents of the directory specified in the path.
 
== GetFileTimeStampRaw ==
Takes a type-0x19 input buffer for the path and returns a 0x20-byte struct. This contains 3 u64s and an u8.
 
= IDirectory =
This is "nn::fssrv::sf::IDirectory".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 885: Line 1,008:
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || GetEventHandle
| 0 || [[#Read]]
|-
| 1 || [[#GetEntryCount]]
|}
|}


= ISaveDataTransferManager =
== 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 "..".
 
== GetEntryCount ==
Returns an u64 for the total number of readable entries.
 
= DirectoryEntry =
This is "nn::fs::DirectoryEntry".
 
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Offset || Size || Description
|-
| 0x0 || 0x301 || Path
|-
| 0x301 || 0x1 || File attributes (bit 0 = is directory; bit 1 = archive bit)
|-
|-
| 0 || [[#GetChallenge]]
| 0x302 || 0x2 || Padding?
|-
|-
| 16 || [[#SetToken]]
| 0x304 || 0x1 || [[#DirectoryEntryType]]
|-
|-
| 32 || [[#OpenSaveDataExporter]]
| 0x305 || 0x3 || Padding?
|-
|-
| 64 || [[#OpenSaveDataImporter]]
| 0x308 || 0x8 || Filesize, 0 for directories.
|}
|}


This was added with [[4.0.0]].
= DirectoryEntryType =
This is "nn::fs::DirectoryEntryType".


== GetChallenge ==
An s8 value indicating a directory entry type. The current values are:
No input/output, takes a type-0x6 output buffer.


== SetToken ==
{| class="wikitable" border="1"
No input/output, takes a type-0x5 input buffer.
|-
! Value || Description
|-
| 0 || Directory
|-
| 1 || File
|}


== OpenSaveDataExporter ==
= IFile =
Takes an input u8 [[#SaveDataSpaceId]] and u64, returns an [[#ISaveDataExporter]].
This is "nn::fssrv::sf::IFile".


== OpenSaveDataImporter ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x10-byte userID, and a type-0x5 input buffer. Returns an output u64 and an [[#ISaveDataImporter]].
= ISaveDataExporter =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || [[#Initialize]]
| 0 || Read
|-
|-
| 1 || [[#GetRestSize]]
| 1 || Write
|-
| 2 || Flush
|-
| 3 || SetSize
|-
| 4 || GetSize
|-
|-
| 16 || [[#Pull]]
| 5 || [4.0.0+] OperateRange
|-
|-
| 17 || [[#PullInitialData]]
| 6 || [12.0.0+] OperateRangeWithBuffer
|}
|}


This was added with [[4.0.0]].
= ISaveDataInfoReader =
This is "nn::fssrv::sf::ISaveDataInfoReader".


== Initialize ==
{| class="wikitable" border="1"
No input/output, takes a type-0x1A [[#SaveDataInfo]] output buffer.
|-
! Cmd || Name
|-
| 0 || [[#ReadSaveDataInfo]]
|}


The actual name for this is the SaveDataExporter constructor. This is used automatically after [[#OpenSaveDataExporter]] by official sw.
== ReadSaveDataInfo ==
Takes a type-0x6 output buffer. Returns an output u64 for total output entries. This buffer contains an array of [[#SaveDataInfo]].


== GetRestSize ==
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).
No input, returns an output u64.


== Pull ==
= IDeviceOperator =
Takes a type-0x6 output buffer, returns an output u64.
This is "nn::fssrv::sf::IDeviceOperator".


== PullInitialData ==
No input/output, takes a type-0x6 output buffer.
= ISaveDataImporter =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || [[#Initialize]]
| 0 || [[#IsSdCardInserted]]
|-
| 1 || [[#GetSdCardSpeedMode]]
|-
| 2 || [2.0.0+] [[#GetSdCardCid]]
|-
|-
| 1 || [[#GetRestSize]]
| 3 || [2.0.0+] [[#GetSdCardUserAreaSize]]
|-
|-
| 16 || [[#Push]]
| 4 || [2.0.0+] [[#GetSdCardProtectedAreaSize]]
|-
|-
| 17 || [[#Finalize]]
| 5 || [2.0.0+] [[#GetAndClearSdCardErrorInfo]]
|}
|-
 
| 6 || [17.0.0+] [[#GetSdCardHostControllerStatus]]
This was added with [[4.0.0]].
|-
 
| 7 || [20.0.0+] SetSdCardActivationMode
== Initialize ==
No input/output, takes a type-0x1A [[#SaveDataInfo]] output buffer.
 
The actual name for this is the SaveDataImporter constructor. This is used automatically after [[#OpenSaveDataImporter]] by official sw.
 
== GetRestSize ==
No input, returns an output u64.
 
== Push ==
No input/output, takes a type-0x5 input buffer.
 
== Finalize ==
No input/output.
 
= ISaveDataTransferManagerWithDivision =
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| 8 || [20.0.0+] [S1] TryGetSdCardInfo
|-
|-
| 0 || [[#GetChallenge]]
| 100 || [[#GetMmcCid]]
|-
|-
| 16 || [[#SetKeySeedPackage]]
| 101 || [[#GetMmcSpeedMode]]
|-
|-
| 32 || [[#OpenSaveDataFullExporter]]
| 110 || [[#EraseMmc]]
|-
|-
| 33 || [[#OpenSaveDataDiffExporter]]
| 111 || [[#GetMmcPartitionSize]]
|-
|-
| 34 || [6.0.0+] [[#OpenSaveDataExporterByContext]]
| 112 || [2.0.0+] [[#GetMmcPatrolCount]]
|-
|-
| 64 || [[#OpenSaveDataFullImporter]]
| 113 || [2.0.0+] [[#GetAndClearMmcErrorInfo]]
|-
|-
| 65 || [[#OpenSaveDataDiffImporter]]
| 114 || [2.0.0+] [[#GetMmcExtendedCsd]]
|-
|-
| 66 || [6.0.0+] [[#OpenSaveDataDuplicateDiffImporter]]
| 115 || [4.0.0+] [[#SuspendMmcPatrol]]
|-
|-
| 67 || [6.0.0+] [[#OpenSaveDataImporter]]
| 116 || [4.0.0+] [[#ResumeMmcPatrol]]
|-
|-
| 68 || [6.0.0+] [[#OpenSaveDataImporterByContext]]
| 117 || [17.0.0+] [[#EraseMmcWithRange]]
|-
|-
| 69 || [6.0.0+] [[#CancelSuspendingImport]]
| 118 || [20.0.0+] MarkBeforeEraseMmcPartitionUserData
|}
|-
 
| 119 || [20.0.0+] CheckAfterEraseMmcPartitionUserData
This was added with [[5.0.0]].
|-
 
| 200 || [S1] [[#IsGameCardInserted]]
== GetChallenge ==
|-
No input/output, takes a type-0x6 output buffer containing the '''Challenge'''.
| 201 || [S1] [[#EraseGameCard]]
 
|-
== SetKeySeedPackage ==
| 202 || [S1] [[#GetGameCardHandle]]
No input/output, takes a type-0x5 input buffer containing the '''KeySeedPackage'''.
|-
 
| 203 || [S1] [[#GetGameCardUpdatePartitionInfo]]
== OpenSaveDataFullExporter ==
|-
Takes an input u8 [[#SaveDataSpaceId]] and u64. Returns an [[#ISaveDataDivisionExporter]].
| 204 || [S1] [[#FinalizeGameCardDriver]]
 
|-
== OpenSaveDataDiffExporter ==
| 205 || [S1] [[#GetGameCardAttribute]]
Takes an input u8 [[#SaveDataSpaceId]], an u64, and a type-0x5 input buffer [[#InitialDataVersion2]]. Returns an [[#ISaveDataDivisionExporter]].
|-
 
| 206 || [S1] [[#GetGameCardDeviceCertificate]]
== OpenSaveDataExporterByContext ==
|-
No input/output, takes a type-0x5 input buffer, returns an [[#ISaveDataDivisionExporter]].
| 207 || [S1] [[#GetGameCardAsicInfo]]
 
|-
== OpenSaveDataFullImporter ==
| 208 || [S1] [[#GetGameCardIdSet]]
Takes an input u8 [[#SaveDataSpaceId]], a 0x10-byte userID, and a type-0x5 input buffer [[#InitialDataVersion2]]. Returns an [[#ISaveDataDivisionImporter]].
|-
 
| 209 || [S1] [[#WriteToGameCardDirectly]]
== OpenSaveDataDiffImporter ==
|-
Takes an input u8 [[#SaveDataSpaceId]], an u64, and a type-0x5 input buffer [[#InitialDataVersion2]], returns an [[#ISaveDataDivisionImporter]].
| 210 || [S1] [[#SetVerifyWriteEnalbleFlag]]
 
|-
== OpenSaveDataDuplicateDiffImporter ==
| 211 || [S1] [[#GetGameCardImageHash]]
Takes an input u8 and an u64, and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
|-
 
| 212 || [S1] [2.0.0+] [[#GetGameCardDeviceIdForProdCard]]
== OpenSaveDataImporter ==
|-
Takes an input u8, an u8(bool), a 0x10-byte struct, and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
| 213 || [S1] [2.0.0+] [[#EraseAndWriteParamDirectly]]
 
|-
== OpenSaveDataImporterByContext ==
| 214 || [S1] [2.0.0+] [[#ReadParamDirectly]]
No input/output, takes a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
|-
 
| 215 || [S1] [2.0.0+] [[#ForceEraseGameCard]]
== CancelSuspendingImport ==
Takes an input u64 and a 0x10-byte struct, no output.
 
= ISaveDataDivisionExporter =
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| 216 || [S1] [2.0.0+] [[#GetGameCardErrorInfo]]
|-
|-
| 0 || SetDivisionCount (Takes an input u32, no output)
| 217 || [S1] [2.1.0+] [[#GetGameCardErrorReportInfo]]
|-
|-
| 1 || [6.0.0+] GetSaveDataInfo (No input/output, takes a type-0x6 output buffer)
| 218 || [S1] [3.0.0+] [[#GetGameCardDeviceId]]
|-
|-
| 16 || OpenSaveDataDiffChunkIterator (No input, returns an [[#ISaveDataChunkIterator]])
| 219 || [S1] [8.0.0+] [[#ChallengeCardExistence]]
|-
|-
| 48 || OpenSaveDataChunkExporter (Takes an input u32, returns an [[#ISaveDataChunkExporter]])
| 220 || [S1] [9.0.0+] [[#GetGameCardCompatibilityType]]
|-
|-
| 64 || [6.0.0+] FinalizeFullExport (No input, returns two 0x10-byte output structs)
| 221 || [S1] [17.0.0+] [[#GetGameCardAsicCertificate]]
|-
|-
| 65 || [6.0.0+] FinalizeDiffExport (No input, returns an output 0x10-byte struct)
| 222 || [S1] [18.0.0+] [[#GetGameCardCardHeader]]
|-
|-
| 66 || [6.0.0+] CancelExport (No input/output)
| 223 || [S1] [19.0.0+] [[#SetGameCardSessionCreationDelay]]
|-
|-
| 67 || [6.0.0+] SuspendExport (No input/output, takes a type-0x6 output buffer)
| 224 || [S1] [19.0.0+] [[#GetGameCardApplicationIdList]]
|-
|-
| 70 || [6.0.0+] GetKeySeed (No input, returns an output 0x10-byte struct)
| 225 || [S1] [20.0.0+] RegisterGameCardConfigurationData
|-
|-
| 71 || [6.0.0+] GetInitialDataMac (No input, returns an output 0x10-byte struct)
| 226 || [S1] [20.0.0+] GetGameCardDetailedErrorReportInfo
|-
|-
| 72 || [6.0.0+] FinalizeExport (No input/output)
| 300 || [[#SetSpeedEmulationMode]]
|-
|-
| 80 || [6.0.0+] GetImportInitialDataAad (No input, returns an output 0x20-byte struct)
| 301 || [[#GetSpeedEmulationMode]]
|-
|-
| 81 || [6.0.0+] SetExportInitialDataAad (Takes an input 0x20-byte struct, no output)
| 302 || [18.0.0+] [[#SetApplicationStorageSpeed]]
|-
|-
| 96 || [6.0.0+] GetReportInfo (No input, returns an output 0x20-byte struct)
| 303 || [20.0.0+] SetGameCardClockRateForSpeedEmulation
|}
 
This was added with [[5.0.0]].
 
= ISaveDataDivisionImporter =
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [6.0.0+] GetSaveDataInfo (No input/output, takes a type-0x6 output buffer)
|-
| 16 || OpenSaveDataDiffChunkIterator (No input, returns an [[#ISaveDataChunkIterator]])
|-
| 32 || InitializeImport (No input, returns an output u64)
|-
|-
| 33 || FinalizeImport (No input/output)
| 304 || [20.0.0+] ClearGameCardClockRateForSpeedEmulation
|-
|-
| 34 || [6.0.0+] CancelImport (No input/output)
| 400 || [5.0.0+] [[#SuspendSdmmcControl]]
|-
|-
| 35 || [6.0.0+] GetImportContext (No input/output, takes a type-0x6 output buffer)
| 401 || [5.0.0+] [[#ResumeSdmmcControl]]
|-
|-
| 36 || [6.0.0+] SuspendImport (No input/output)
| 402 || [6.0.0+] [[#GetSdmmcConnectionStatus]]
|-
|-
| 48 || OpenSaveDataChunkImporter (Takes an input u32, returns an [[#ISaveDataChunkImporter]])
| 500 || [6.0.0+] [[#SetDeviceSimulationEvent]]
|-
|-
| 64 || [6.0.0+] GetImportInitialDataAad (No input, returns an output 0x20-byte struct)
| 501 || [6.0.0+] [[#ClearDeviceSimulationEvent]]
|-
|-
| 80 || [6.0.0+] GetReportInfo (No input, returns an output 0x20-byte struct)
| 800 || [S2] [[#OpenStorageDeviceManager]]
|}
|}


This was added with [[5.0.0]].
== IsSdCardInserted ==
No input. Returns an output bool.


= ISaveDataChunkIterator =
== GetSdCardSpeedMode ==
{| class="wikitable" border="1"
No input. Returns an output [[#SdCardSpeedMode]].
|-
! Cmd || Name
|-
| 0 || Next (No input/output)
|-
| 1 || IsEnd (No input, returns an output u8)
|-
| 16 || GetId (No input, returns an output u32)
|}


This was added with [[5.0.0]].
== GetSdCardCid ==
Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.


= ISaveDataChunkExporter =
== GetSdCardUserAreaSize ==
{| class="wikitable" border="1"
No input. Returns an output s64 '''SdCardUserAreaSize'''.
|-
! Cmd || Name
|-
| 0 || Pull (Takes an input u64 and a type-0x6 output buffer, returns an output u64)
|-
| 16 || [6.0.0+] GetRestRawDataSize (No input, returns an output u64)
|-
|}


This was added with [[5.0.0]].
== GetSdCardProtectedAreaSize ==
No input. Returns an output s64 '''SdCardProtectedAreaSize'''.
 
== GetAndClearSdCardErrorInfo ==
Takes a type-0x6 output buffer '''LogBuffer''' and an input s64 '''LogBufferSize'''. Returns an output [[#StorageErrorInfo]] and an output s64 '''LogSize'''.
 
== GetSdCardHostControllerStatus ==
No input. Returns an output [[#HostControllerStatus]].
 
== GetMmcCid ==
Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
 
== GetMmcSpeedMode ==
No input. Returns an output [[#MmcSpeedMode]].


= ISaveDataChunkImporter =
== EraseMmc ==
{| class="wikitable" border="1"
Takes an input [[#MmcPartition]]. No output.
|-
! Cmd || Name
|-
| 0 || Push (Takes an input u64 and a type-0x5 input buffer, no output)
|}


This was added with [[5.0.0]].
== GetMmcPartitionSize ==
Takes an input [[#MmcPartition]]. Returns an output s64 '''MmcPartitionSize'''.


= ISaveDataTransferProhibiter =
== GetMmcPatrolCount ==
This was added with [[6.0.0]].
No input. Returns an output u32 '''MmcPatrolCount'''.


This doesn't seem to handle any commands (?).
== GetAndClearMmcErrorInfo ==
Takes a type-0x6 output buffer '''LogBuffer''' and an input s64 '''LogBufferSize'''. Returns an output [[#StorageErrorInfo]] and an output s64 '''LogSize'''.


= IMultiCommitManager =
== GetMmcExtendedCsd ==
{| class="wikitable" border="1"
Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
|-
! Cmd || Name
|-
| 1 || ? (Takes an input [[#IFilesystem]], no output)
|-
| 2 || ? (No input/output)
|}


This was added with [[6.0.0]].
== SuspendMmcPatrol ==
No input/output.


= FileSystemType =
== ResumeMmcPatrol ==
{| class="wikitable" border="1"
No input/output.
|-
 
! Value || Name
== EraseMmcWithRange ==
|-
Takes an input [[#MmcPartition]] and two input u64s. No output.
| 0 || Invalid
 
|-
== IsGameCardInserted ==
| 1 || Invalid
No input. Returns an output bool.
|-
 
| 2 || Logo
== EraseGameCard ==
|-
Takes an input [[#GameCardSize]] and an input u64 '''NormalAreaSize'''. No output.
| 3 || ContentControl
|-
| 4 || ContentManual
|-
| 5 || ContentMeta
|-
| 6 || ContentData
|-
| 7 || ApplicationPackage
|}


= StorageId =
== GetGameCardHandle ==
{| class="wikitable" border="1"
No input. Returns an output [[#GameCardHandle]].
|-
! Value || Name
|-
| 0 || None
|-
| 1 || Host
|-
| 2 || GameCard
|-
| 3 || NandSystem
|-
| 4 || NandUser
|-
| 5 || SdCard
|}


= ContentStorageId =
== GetGameCardUpdatePartitionInfo ==
{| class="wikitable" border="1"
Takes an input [[#GameCardHandle]]. Returns an output [[#GameCardUpdatePartitionInfo]].
|-
 
! Value || Name
== FinalizeGameCardDriver ==
|-
No input/output.
| 0 || System
 
|-
== GetGameCardAttribute ==
| 1 || User
Takes an input [[#GameCardHandle]]. Returns an output [[#GameCardAttribute]].
|-
| 2 || SdCard
|}


= SaveDataSpaceId =
== GetGameCardDeviceCertificate ==
{| class="wikitable" border="1"
Takes a type-0x6 output buffer, an input s64 '''BufferSize''' and an input [[#GameCardHandle]]. No output.
|-
! Value || Name
|-
| 0 || System
|-
| 1 || User
|-
| 2 || SdSystem
|-
| 100 || [3.0.0+] ProperSystem
|}


Determines the storage where the savedata is stored.
[19.0.0+] Now returns an output s64 '''OutSize''' which can be 0x200 or 0x400.


= SaveDataType =
== GetGameCardAsicInfo ==
{| class="wikitable" border="1"
Takes a type-0x5 input buffer '''FwBuffer''', a type-0x6 output buffer containing [[#RmaInformation]] and two input s64s '''FwBufferSize''' and '''RmaInformationSize'''. No output.
|-
 
! Value || Name
== GetGameCardIdSet ==
|-
Takes a type-0x6 output buffer containing a [[#GameCardIdSet]] and an input s64 '''BufferSize'''. No output.
| 0 || SystemSaveData
 
|-
== WriteToGameCardDirectly ==
| 1 || SaveData
Takes a type-0x6 output buffer and two input s64s '''Offset''' and '''BufferSize'''. No output.
|-
 
| 2 || BcatDeliveryCacheStorage
== SetVerifyWriteEnalbleFlag ==
|-
Takes an input bool. No output.
| 3 || DeviceSaveData
 
|-
== GetGameCardImageHash ==
| 4 || [3.0.0+] TemporaryStorage
Takes a type-0x6 output buffer, an input s64 '''BufferSize''' and an input [[#GameCardHandle]]. No output.
|-
| 5 || [3.0.0+] CacheStorage
|}


= ImageDirectoryId =
== GetGameCardDeviceIdForProdCard ==
{| class="wikitable" border="1"
Takes a type-0x5 input buffer '''CardHeaderForDev''', a type-0x6 output buffer and two input s64s '''CardHeaderForDevSize''' and '''BufferSize'''. No output.
|-
! Value || Name
|-
| 0 || Nand
|-
| 1 || SdCard
|}


= CloudBackupWorkStorageId =
== EraseAndWriteParamDirectly ==
{| class="wikitable" border="1"
Takes a type-0x5 input buffer and an input s64 '''BufferSize'''. No output.
|-
 
! Value || Name
== ReadParamDirectly ==
|-
Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
| 0 || Nand
 
|-
== ForceEraseGameCard ==
| 1 || SdCard
No input/output.
|}
 
== GetGameCardErrorInfo ==
No input. Returns an output [[#GameCardErrorInfo]].
 
== GetGameCardErrorReportInfo ==
No input. Returns an output [[#GameCardErrorReportInfo]].
 
== GetGameCardDeviceId ==
Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
 
== ChallengeCardExistence ==
Takes a type-0x6 output buffer, two type-0x5 input buffers and an input [[#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 input [[#GameCardHandle]]. Returns an output [[#GameCardCompatibilityType]].
 
== GetGameCardAsicCertificate ==
Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
 
== GetGameCardCardHeader ==
Takes a type-0x6 output buffer, an input s64 '''BufferSize''' and an input [[#GameCardHandle]]. No output.


= ContentPath =
== SetGameCardSessionCreationDelay ==
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.
Takes two input bools and an input u32. No output.


{| class="wikitable" border="1"
== GetGameCardApplicationIdList ==
|-
Takes a type-0x6 output buffer, an input s64 '''BufferSize''' and an input [[#GameCardHandle]]. Returns an output u16.
! Path || Notes
 
|-
== SetSpeedEmulationMode ==
| @SystemContent ||
Takes an input [[#SpeedEmulationMode]]. No output.
|-  
 
| @UserContent ||
== GetSpeedEmulationMode ==
|-
No input. Returns an output [[#SpeedEmulationMode]].
| @SdCardContent ||
 
|-
== SetApplicationStorageSpeed ==
| @CalibFile ||
Takes an input s32. No output.
 
== SuspendSdmmcControl ==
No input/output.
 
== ResumeSdmmcControl ==
No input/output.
 
== 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.
 
== OpenStorageDeviceManager ==
Takes a byte. Returns an [[#IStorageDeviceManager]].
 
= IEventNotifier =
This is "nn::fssrv::sf::IEventNotifier".
 
{| class="wikitable" border="1"
|-
|-
| @Safe ||
! Cmd || Name
|-
|-
| @User ||
| 0 || [[#GetEventHandle]]
|}
 
== GetEventHandle ==
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"
|-
|-
| @System ||
! Cmd || Name
|-
|-
| @Sdcard ||
| 0 || [[#GetChallenge]]
|-
|-
| @Host ||
| 16 || [[#SetToken]]
|-
|-
| @GcApp || Gamecard App partition (Partition 2)
| 32 || [[#OpenSaveDataExporter]]
|-
|-
| @GcS00000001 || Gamecard Contents.
| 64 || [[#OpenSaveDataImporter]]
|-
| @upp || Gamecard update partition (Partition 0)
|-
| [4.0.0+] @RegUpdate || Registered update partition
|}
|}


= Save Struct =
== GetChallenge ==
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"
|-
|-
! Offset
! Cmd || Name
! Size
! Description
|-
|-
| 0x0
| 0 || [[#GetChallenge]]
| 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
| 16 || [[#SetKeyPackage]]
| 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
| 80 || [[#OpenSaveDataExporterAndGetEncryptedKey]]
| 0x8
| u64 [[Flash_Filesystem|saveID]]. 0 for SaveData.
|-
|-
| 0x20
| 81 || [[#PrepareOpenSaveDataImporter]]
| 0x1
| [[#SaveDataType]]
|-
|-
| 0x21
| 90 || [[#OpenSaveDataImporter]]
| 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
| 91 || [[#OpenSaveDataImporter2]]
| 0x2
| Save data index
|-
|-
| 0x24
| 100 || [[#OpenSaveDataExporterWithKey]]
| 0x4
| Padding
|-
|-
| 0x28
| 110 || [[#OpenSaveDataImporterWithKey]]
| 0x8
|}
| 0 for SystemSaveData/SaveData.
 
== 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]].
 
[17.0.0+] Now only takes 0x18-bytes of input and an additional type-0x5 input buffer.
 
= ISaveDataMover =
This is "nn::fssrv::sf::ISaveDataMover".
 
This was added with [[10.0.0]].
 
{| class="wikitable" border="1"
|-
|-
| 0x30
! Cmd || Name
| 0x8
|-
| 0 for SystemSaveData/SaveData.
| 8 || [[#Register]]
|-
| 16 || [[#Process]]
|-
|-
| 0x38
| 18 || [[#Cancel]]
| 0x8
| 0 for SystemSaveData/SaveData.
|}
|}


Total size is 0x40-bytes.
== Register ==
Takes an input u64, no output.
 
== Process ==
Takes an input u64, returns an output u64.
 
== Cancel ==
No input/output.
 
= ISaveDataTransferManagerForRepair =
This is "nn::fssrv::sf::ISaveDataTransferManagerForRepair".


For DeviceSaveData, this struct is all-zero except for the [[#SaveDataType]] field.
This was added with [[11.0.0]].


= SaveCreate Struct =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Offset
! Cmd || Name
! Size
! Description
|-
|-
| 0x0
| 80 || [[#OpenSaveDataExporter]]
| 0x8
| [[Savegames|IVFC]] level4 size?
|-
|-
| 0x8
| 90 || [[#OpenSaveDataImporter]]
| 0x8
|}
| Same as offset 0x0 normally? Hard-coded to 0x80000 for BcatSaveData.
 
== OpenSaveDataExporter ==
Takes a total of 0x10-bytes of input, returns an [[#ISaveDataDivisionExporter]].
 
== OpenSaveDataImporter ==
Takes 1-byte of input, a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
 
= ISaveDataExporter =
This is "nn::fssrv::sf::ISaveDataExporter".
 
This was added with [[4.0.0]].
 
{| class="wikitable" border="1"
|-
|-
| 0x10
! Cmd || Name
| 0x8
| 0x4000 for SystemSaveData/SaveData/DeviceSaveData/BcatSaveData. [[Savegames|IVFC]] level4 block-size in bytes?
|-
|-
| 0x18
| 0 || [[#GetSaveDataInfo]]
| 0x8
| 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.
|-
|-
| 0x20
| 1 || [[#GetRestSize]]
| 0x4
| Written using an input param for official user-processes. Hard-coded 0 for BcatSaveData.
|-
|-
| 0x24
| 16 || [[#Pull]]
| 0x1
| Official user-processes only uses 0 here for SystemSaveData, 1 for SaveData/DeviceSaveData/BcatSaveData.
|-
|-
| 0x25
| 17 || [[#PullInitialData]]
| 0x1
| 0 for SystemSaveData/SaveData.
|-
| 0x26
| 0x1A
| Not initialized for SystemSaveData/SaveData.
|}
|}


Total size is 0x40-bytes.
== 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.


= DeviceSaveData =
== GetRestSize ==
This is accessed using the same commands for SaveData with the same input u8, the only difference compared to SaveData is the Save-struct.
No input, returns an output u64.


= BcatSaveData =
== Pull ==
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.
Takes a type-0x6 output buffer, returns an output u64.


The 0x10-byte struct passed to [[#CreateSaveDataFileSystem]] has the first 0x5-bytes set to all-zero.
== PullInitialData ==
No input/output, takes a type-0x6 output buffer.


= SaveDataInfo =
= ISaveDataImporter =
{| class="wikitable" border="1"
This is "nn::fssrv::sf::ISaveDataImporter".
|-
 
! Offset
This was added with [[4.0.0]].
! Size
 
! Description
{| class="wikitable" border="1"
|-
|-
| 0x0
! Cmd || Name
| 0x8
| Unknown saveID
|-
|-
| 0x8
| 0 || [[#GetSaveDataInfo]]
| 0x1
| [[#SaveDataSpaceId]]
|-
|-
| 0x9
| 1 || [[#GetRestSize]]
| 0x1
| [[#SaveDataType]]
|-
|-
| 0xA
| 16 || [[#Push]]
| 0x6
| Padding?
|-
|-
| 0x10
| 17 || [[#Finalize]]
| 0x10
|}
| userID
 
|-
== GetSaveDataInfo ==
| 0x20
No input/output, takes a type-0x1A [[#GetSaveDataInfo]] output buffer.
| 0x8
 
| saveID, 0 for regular SaveData.
The actual name for this is the SaveDataImporter constructor. This is used automatically after [[#OpenSaveDataImporter]] by official sw.
|-
 
| 0x28
== GetRestSize ==
| 0x8
No input, returns an output u64.
| Application titleID, for regular SaveData.
 
== Push ==
No input/output, takes a type-0x5 input buffer.
 
== Finalize ==
No input/output.
 
= ISaveDataTransferManagerWithDivision =
This is "nn::fssrv::sf::ISaveDataTransferManagerWithDivision".
 
This was added with [[5.0.0]].
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#GetChallenge]]
|-
| 8 || [18.0.0+] SetMode
|-
| 9 || [18.0.0+] SetAttribute
|-
| 16 || [[#SetKeySeedPackage]]
|-
| 17 || [20.0.0+] SetLocalKeySeedPackage
|-
| 32 || [[#OpenSaveDataExporter]]
|-
| 33 || [[#OpenSaveDataExporterForDiffExport]]
|-
| 34 || [6.0.0+] [[#OpenSaveDataExporterByContext]]
|-
| 63 || [17.0.0+] OpenSaveDataImporter
|-
| 64 || [6.0.0-17.0.1] [[#OpenSaveDataImporterDeprecated]] ([5.0.0-5.1.0] OpenSaveDataImporter)
|-
| 65 || [5.0.0-17.0.1] [[#OpenSaveDataImporterForDiffImport]]
|-
| 66 || [6.0.0-17.0.1] [[#OpenSaveDataImporterForDuplicateDiffImport]]
|-
| 67 || [6.0.0-16.1.0] [[#OpenSaveDataImporter]]
|-
| 68 || [6.0.0+] [[#OpenSaveDataImporterByContext]]
|-
| 69 || [6.0.0+] [[#CancelSuspendingImport]]
|-
| 70 || [10.0.0+] CancelSuspendingImportByAttribute
|-
| 80 || [11.0.0+] SwapSecondary
|}
 
== 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+] [[#ReadSaveDataExtraData]]
|-
| 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 || [6.0.0-17.0.1] [[#GetKeySeed]]
|-
| 71 || [6.0.0+] [[#GetInitialDataMac]]
|-
| 72 || [6.0.0+] [[#FinalizeExport]]
|-
| 73 || [9.0.0+] [[#GetInitialDataMacKeyGeneration]]
|-
| 74 || [18.0.0+] [[#GetKeySeed]]
|-
| 75 || [20.0.0+] GetLocalKeySeedPackage
|-
| 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+] [[#ReadSaveDataExtraData]]
|-
| 16 || [[#OpenSaveDataDiffChunkIterator]]
|-
| 32 || [[#InitializeImport]]
|-
| 33 || [[#FinalizeImport]]
|-
| 34 || [6.0.0+] [[#CancelImport]]
|-
| 35 || [6.0.0+] [[#GetImportContext]]
|-
| 36 || [6.0.0+] [[#SuspendImport]]
|-
| 37 || [11.0.0+] FinalizeImportWithoutSwap
|-
| 48 || [[#OpenSaveDataChunkImporter]]
|-
| 64 || [6.0.0+] [[#GetImportInitialDataAad]]
|-
| 80 || [6.0.0+] [[#GetReportInfo]]
|}
 
== ReadSaveDataExtraData ==
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 is "nn::fssrv::sf::ISaveDataTransferProhibiter".
 
This was added with [6.0.0+].
 
This doesn't seem to handle any commands (?).
 
= IMultiCommitManager =
This is "nn::fssrv::sf::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::fssrv::sf::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.
 
= IStorageDeviceManager =
[S2] This is "nn::fssrv::storage::sf::IStorageDeviceManager".
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || IsInserted
|-
| 1 || IsHandleValid
|-
| 2 || [[#OpenDetectionEvent]]
|-
| 3 || Returns an [[#IEventNotifier]].
|-
| 10 || [[#OpenOperator]]
|-
| 20 || [[#OpenDevice]]
|-
| 21 || [[#OpenStorage]]
|-
| 34 || Invalidate
|}
 
== OpenDetectionEvent ==
Returns an [[#IEventNotifier]].
== OpenOperator ==
Returns an [[#IStorageDeviceOperator]].
 
== OpenDevice ==
Returns an [[#IStorageDevice]].
 
== OpenStorage ==
Returns an [[#IStorage]].
 
= IStorageDeviceOperator =
[S2] This is "nn::fssrv::storage::sf::IStorageDeviceOperator".
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || Operate
|-
| 1 || OperateIn
|-
| 10 || OperateOut
|-
| 11 || OperateOut2
|-
| 20 || OperateInOut
|-
| 21 || OperateIn2Out
|}
 
= IStorageDevice =
[S2] This is "nn::fssrv::storage::sf::IStorageDevice".
 
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || GetHandle
|-
| 1 || IsHandleValid
|-
| 10 || OpenOperator
|-
| 20 || Read
|-
| 21 || Write
|-
| 22 || Flush
|-
| 23 || SetSize
|-
| 24 || GetSize
|-
| 25 || OperateRange
|}
 
= FileSystemProxyType =
This is "nn::fs::FileSystemProxyType".
 
sdknso converts the input [[#ContentType|ContentType]] to a FileSystemProxyType, for use with the cmd input.
 
{| 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
|}
 
= ContentAttributes =
This is "nn::fs::ContentAttributes".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || None
|-
| 1 || [S2]
|-
| 15 || All
|}
 
= ContentStorageId =
This is "nn::fs::ContentStorageId".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || System
|-
| 1 || User
|-
| 2 || SdCard
|-
| 3 || [16.0.0+] System0
|}
 
= 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
|-
| 35 || [16.0.0+] DeviceTreeBlob
|-
| 36 || [16.0.0+] System0
|}
 
= SdCardSpeedMode =
This is "nn::fs::SdCardSpeedMode".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Identification
|-
| 1 || DefaultSpeed
|-
| 2 || HighSpeed
|-
| 3 || Sdr12
|-
| 4 || Sdr25
|-
| 5 || Sdr50
|-
| 6 || Sdr104
|-
| 7 || Ddr50
|-
| 8 || Unknown
|}
 
= 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
|}
 
= HostControllerStatus =
This is "nn::sdcard::HostControllerStatus".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0xC
|
|}
 
= MemoryReportInfo =
This is "nn::fs::MemoryReportInfo".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x8
| PooledBufferFreeSizePeak
|-
| 0x8
| 0x8
| PooledBufferRetriedCount
|-
| 0x10
| 0x8
| PooledBufferReduceAllocationCount
|-
| 0x18
| 0x8
| BufferManagerFreeSizePeak
|-
| 0x20
| 0x8
| BufferManagerRetriedCount
|-
| 0x28
| 0x8
| ExpHeapFreeSizePeak
|-
| 0x30
| 0x8
| BufferPoolFreeSizePeak
|-
| 0x38
| 0x8
| PatrolReadAllocateBufferSuccessCount
|-
| 0x40
| 0x8
| PatrolReadAllocateBufferFailureCount
|-
| 0x48
| 0x8
| BufferManagerTotalAllocatableSizePeak
|-
| 0x50
| 0x8
| BufferPoolAllocateSizeMax
|-
| 0x58
| 0x8
| PooledBufferFailedIdealAllocationCountOnAsyncAccess
|-
| 0x60
| 0x20
| Reserved
|}
 
= StorageErrorInfo =
This is "nn::fs::StorageErrorInfo".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x4
| NumActivationFailures
|-
| 0x4
| 0x4
| NumActivationErrorCorrections
|-
| 0x8
| 0x4
| NumReadWriteFailures
|-
| 0xC
| 0x4
| NumReadWriteErrorCorrections
|}
 
= GameCardErrorInfo =
This is "nn::fs::GameCardErrorInfo".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x2
| GameCardCrcErrorCount
|-
| 0x2
| 0x2
| Reserved
|-
| 0x4
| 0x2
| AsicCrcErrorCount
|-
| 0x6
| 0x2
| Reserved
|-
| 0x8
| 0x2
| RefreshCount
|-
| 0xA
| 0x2
| Reserved
|-
| 0xC
| 0x2
| ReadRetryCount
|-
| 0xE
| 0x2
| TimeoutRetryErrorCount
|}
 
= GameCardErrorReportInfo =
This is "nn::fs::GameCardErrorReportInfo".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x10
| [[#GameCardErrorInfo|ErrorInfo]]
|-
| 0x10
| 0x2
| AsicReinitializeFailureDetail
|-
| 0x12
| 0x2
| InsertionCount
|-
| 0x14
| 0x2
| RemovalCount
|-
| 0x16
| 0x2
| AsicReinitializeCount
|-
| 0x18
| 0x4
| AsicInitializeCount
|-
| 0x1C
| 0x2
| AsicReinitializeFailureCount
|-
| 0x1E
| 0x2
| AwakenFailureCount
|-
| 0x20
| 0x2
| Reserved
|-
| 0x22
| 0x2
| RefreshCount
|-
| 0x24
| 0x4
| LastReadErrorPageAddress
|-
| 0x28
| 0x4
| LastReadErrorPageCount
|-
| 0x2C
| 0x4
| AwakenCount
|-
| 0x30
| 0x4
| ReadCountFromInsert
|-
| 0x34
| 0x4
| ReadCountFromAwaken
|-
| 0x38
| 0x8
| Reserved
|}
 
= GameCardHandle =
This is "nn::fs::GameCardHandle". This is an u32.
 
= 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
|}
 
= GameCardAttribute2 =
This is "nn::fs::GameCardAttribute2".
 
= 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
|}
 
= GameCardCompatibilityType =
This is "nn::fs::GameCardCompatibilityType".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Global
|-
| 1 || China
|}
 
= GameCardUpdatePartitionInfo =
This is "nn::fs::GameCardUpdatePartitionInfo".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x4
| Version
|-
| 0x4
| 0x4
| Reserved
|-
| 0x8
| 0x8
| Id
|}
 
= GameCardIdSet =
This is "nn::gc::GameCardIdSet".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x4
| [[#CardId1|Id1]]
|-
| 0x4
| 0x4
| [[#CardId2|Id2]]
|-
| 0x8
| 0x4
| [[#CardId3|Id3]]
|}
 
= CardId1 =
This is "nn::gc::detail::CardId1".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x1
| [[#MakerCodeForCardId1|MakerCode]]
|-
| 0x1
| 0x1
| [[#MemoryCapacity|MemoryCapacity]]
|-
| 0x2
| 0x1
| Reserved
|-
| 0x3
| 0x1
| [[#MemoryType|MemoryType]]
|}
 
= CardId2 =
This is "nn::gc::detail::CardId2".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x1
| [[#CardSecurityNumber|CardSecurityNumber]]
|-
| 0x1
| 0x1
| [[#CardType|CardType]]
|-
| 0x2
| 0x2
| Reserved
|}
 
= CardId3 =
This is "nn::gc::detail::CardId3".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x4
| Reserved
|}
 
= MakerCodeForCardId1 =
This is "nn::gc::detail::MakerCodeForCardId1".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0xC2 || MegaChips
|-
| 0xAE || Lapis
|-
| 0x36 ||
|}
 
= MemoryCapacity =
This is "nn::gc::detail::MemoryCapacity".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0xFA || 1GB
|-
| 0xF8 || 2GB
|-
| 0xF0 || 4GB
|-
| 0xE0 || 8GB
|-
| 0xE1 || 16GB
|-
| 0xE2 || 32GB
|}
 
= MemoryType =
This is "nn::gc::detail::MemoryType".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0x1 || T1RomFast
|-
| 0x2 || T2RomFast
|-
| 0x9 || T1NandFast
|-
| 0xA || T2NandFast
|-
| 0x21 || T1RomLate
|-
| 0x22 || T2RomLate
|-
| 0x29 || T1NandLate
|-
| 0x2A || T2NandLate
|}
 
= CardSecurityNumber =
This is "nn::gc::detail::CardSecurityNumber".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || 0
|-
| 1 || 1
|-
| 2 || 2
|-
| 3 || 3
|-
| 4 || 4
|}
 
= CardType =
This is "nn::gc::detail::CardType".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
| 0 || Rom
|-
| 1 || WritableDevT1
|-
| 2 || WritableProdT1
|-
| 3 || WritableDevT2
|-
| 4 || WritableProdT2
|}
 
= RmaInformation =
This is "nn::gc::RmaInformation". This is a 0x200-byte struct.
 
= GameCardCardHeader =
This is a 0x600-byte struct.
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x100
| [[XCI#CardHeader|Signature]]
|-
| 0x100
| 0x100
| [[Lotus3#GetCardHeader|Header]]
|-
| 0x200
| 0x400
| [[XCI#NewCardHeaderCertArea|NewCardHeaderCertArea]]
|}
 
= GameCardAsicProductionFirmware =
This is the [[Lotus3#AsicFirmware|firmware]] for reading production Gamecards.
 
Embedded in "nn::gc::detail::EmbeddedDataHolder::g_FwReadBuffer" when in production mode.
 
[4.0.0+] This firmware was updated to provide support for new Gamecards.
 
[9.0.0+] This firmware was updated.
 
[11.0.0+] This firmware was updated.
 
[12.0.0+] This firmware was updated.
 
[14.0.0+] This firmware was updated.
 
= GameCardAsicDevelopmentFirmware =
This is the [[Lotus3#AsicFirmware|firmware]] for reading development Gamecards.
 
Embedded in "nn::gc::detail::EmbeddedDataHolder::g_FwReadBuffer" when in development mode.
 
[9.0.0+] This firmware was updated.
 
[11.0.0+] This firmware was updated.
 
[14.0.0+] This firmware was updated.
 
= GameCardAsicWriterFirmware =
This is the [[Lotus3#AsicFirmware|firmware]] for writing development Gamecards.
 
Embedded in "nn::gc::detail::EmbeddedDataHolder::g_FwWriterBuffer".
 
= 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
|}
 
= FspPath =
This is "nn::fssrv::sf::FspPath". This is a 0x301-byte string.
 
{| 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
| [[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.
|-
| 0x8
| 0x10
| UserId</br>For user-specific savedata(saveuser) when set, otherwise when zero this indicates the common savedata(savecommon). This is loaded from [[Account_services]].
|-
| 0x18
| 0x8
| [[Flash_Filesystem|SystemSaveDataId]] (0 for SaveData)
|-
| 0x20
| 0x1
| [[#SaveDataType]]
|-
| 0x21
| 0x1
| [[#SaveDataRank]]
|-
| 0x22
| 0x2
| 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".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x8
| SaveDataId
|-
| 0x8
| 0x1
| [[#SaveDataSpaceId]]
|-
| 0x9
| 0x1
| [[#SaveDataType]]
|-
| 0xA
| 0x6
| Padding?
|-
| 0x10
| 0x10
| UserId
|-
| 0x20
| 0x8
| SystemSaveDataId (0 for regular SaveData)
|-
| 0x28
| 0x8
| [[NCM_services#ApplicationId|ApplicationId]] (for regular SaveData)
|-
| 0x30
| 0x8
| Raw saveimage size
|-
| 0x38
| 0x2
| SaveDataIndex
|-
| 0x3A
| 0x1
| [[#SaveDataRank]]
|-
| 0x3B
| 0x25
| Unknown. Usually zeros?
|}
 
This is a 0x60-byte struct.
 
= SaveDataFileSystemExtraData =
This is a 0x200-byte struct. Appears to match [[Savegames#Extra_data]].
 
= InitialDataVersion2 =
This is a 0x8210-byte struct used by [[#ISaveDataTransferManagerWithDivision]].
 
= FsAccessControlRestrictionMode =
This is "nn::fs::FsAccessControlRestrictionMode".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
|-
| 0x30
| 0 ||  
| 0x8
| Raw saveimage size
|-
| 0x38
| 0x2
| Save data index
|-
| 0x40
| 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.
|-
| 0x41
| 0x25
| Unknown. Usually zeros?
|}
|}
This is a 0x60-byte struct.
= SaveDataFileSystemExtraData =
This is a 0x200-byte struct.
= InitialDataVersion2 =
This is a 0x8210-byte struct used by [[#ISaveDataTransferManagerWithDivision]].


[[Category:Services]]
[[Category:Services]]
Retrieved from "https://switchbrew.org/wiki/Filesystem_services"