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no edit summary
Migration is a sysmodule designed for handling the new Switch to Switch transfer system.
Migration is a sysmodule designed for handling the Switch-to-Switch transfer system introduced in firmware [[4.0.0]].
With newer system-versions this sysmodule is only running when [[qlaunch]] is using migration from the relevant transfer menus (see [[Applet_Manager_services#ActivateMigrationService|ActivateMigrationService]]/[[Applet_Manager_services#DeactivateMigrationService|DeactivateMigrationService]]).
= mig:usr =
= mig:usr =
! Cmd || Name
! Cmd || Name
|-
|-
| 10 || TryGetLastMigrationInfo
| 0 || [19.0.0+]
|-
| 10 || [7.0.0+] TryGetLastUserMigrationInfo ([4.0.0-6.2.0] TryGetLastMigrationInfo)
|-
| 100 || [7.0.0+] [[#CreateUserMigrationServer|CreateUserMigrationServer]] ([4.0.0-6.2.0] CreateServer)
|-
| 101 || [7.0.0+] [[#ResumeUserMigrationServer|ResumeUserMigrationServer]] ([4.0.0-6.2.0] ResumeServer)
|-
| 200 || [7.0.0+] [[#CreateUserMigrationClient|CreateUserMigrationClient]] ([4.0.0-6.2.0] CreateClient)
|-
| 201 || [7.0.0+] [[#ResumeUserMigrationClient|ResumeUserMigrationClient]] ([4.0.0-6.2.0] ResumeClient)
|-
| 1001 || [8.0.0+] [[#GetSaveDataMigrationPolicyInfoAsync|GetSaveDataMigrationPolicyInfoAsync]]
|-
| 1010 || [7.0.0+] TryGetLastSaveDataMigrationInfo
|-
|-
| 100 || CreateServer
| 1100 || [7.0.0+] [[#CreateSaveDataMigrationServer|CreateSaveDataMigrationServer]]
|-
|-
| 101 || ResumeServer
| 1101 || [7.0.0+] [[#ResumeSaveDataMigrationServer|ResumeSaveDataMigrationServer]]
|-
|-
| 200 || CreateClient
| 1110 || [17.0.0+]
|-
|-
| 201 || ResumeClient
| 1200 || [7.0.0+] [[#CreateSaveDataMigrationClient|CreateSaveDataMigrationClient]]
|-
|-
| 1201 || [7.0.0+] [[#ResumeSaveDataMigrationClient|ResumeSaveDataMigrationClient]]
|}
|}
== CreateUserMigrationServer ==
Takes a total of 0x18-bytes of input, a type-0x19 input buffer, a TransferMemory handle, returns an [[#IServer]].
== ResumeUserMigrationServer ==
Takes an input u32, a TransferMemory handle, returns an [[#IServer]].
== CreateUserMigrationClient ==
Takes an input u32, a type-0x19 input buffer, a TransferMemory handle, returns an [[#IClient]].
== ResumeUserMigrationClient ==
Takes an input u32, a TransferMemory handle, returns an [[#IClient]].
== GetSaveDataMigrationPolicyInfoAsync ==
Takes an [[NCM_services#ApplicationId|ApplicationId]], returns an [[#IAsyncSaveDataMigrationPolicyInfoContext]].
This is used by [[qlaunch]] before the actual savedata transfer is started.
This starts a network request for [[Network|save_data_migration_policy]].
== CreateSaveDataMigrationServer ==
Takes a total of 0x20-bytes of input, a type-0x19 input buffer, a TransferMemory handle, returns an [[#IServer_2|IServer]].
== ResumeSaveDataMigrationServer ==
Takes an input u32, a TransferMemory handle, returns an [[#IServer_2|IServer]].
== Cmd1110 ==
Takes a total of 0x18-bytes of input, a type-0x19 input buffer, a type-0x5 input buffer containing an array of u64s, and a TransferMemory handle. Returns an [[#IServer_2|IServer]].
This is identical to [[#CreateSaveDataMigrationServer|CreateSaveDataMigrationServer]] except the u64-array is passed directly instead of from a single input u64.
== CreateSaveDataMigrationClient ==
Takes an input u32, a type-0x19 input buffer, a TransferMemory handle, returns an [[#IClient_2|IClient]].
== ResumeSaveDataMigrationClient ==
Takes an input u32, a TransferMemory handle, returns an [[#IClient_2|IClient]].
== IServer ==
== IServer ==
|-
|-
| 500 || Abort
| 500 || Abort
|}
|}
|-
|-
| 999 || DebugSynchronizeStateInFinalizationAsync
| 999 || DebugSynchronizeStateInFinalizationAsync
|}
== IAsyncContext ==
This is "nn::migration::detail::IAsyncContext".
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || GetSystemEvent
|-
| 1 || Cancel
|-
| 2 || HasDone
|-
|-
| 3 || GetResult
|}
|}
== IAsyncContext ==
== IAsyncSaveDataMigrationPolicyInfoContext ==
This is "nn::migration::user::IAsyncContext"
This is "nn::migration::detail::IAsyncSaveDataMigrationPolicyInfoContext".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 3 || GetResult
| 3 || GetResult
|-
|-
| 100 || GetSaveDataMigrationPolicyInfo
|}
== IServer ==
This is "nn::migration::savedata::IServer".
This was added with [7.0.0+].
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || GetUid
|-
| 1 || GetApplicationId
|-
| 2 || GetServerProfile
|-
| 3 || [17.0.0+] ListApplicationIds
|-
| 100 || [[#PrepareAsync|PrepareAsync]]
|-
| 101 || GetConnectionRequirement
|-
| 200 || WaitConnectionAsync
|-
| 201 || GetClientProfile
|-
| 210 || [8.0.0+] WaitAcceptanceAsync
|-
| 300 || ProcessTransferAsync
|-
| 400 || CompleteAsync
|-
| 500 || Abort
|-
| 510 || [19.0.0+]
|-
| 998 || [8.0.0+] DebugTryGetState
|-
| 999 || [8.0.0+] DebugWaitStateSynchronizationFinalizedAsync
|}
=== PrepareAsync ===
No input, returns an [[#IAsyncContext|IAsyncContext]].
Besides various other functionality, the async task also uses functionality similar to [[#GetSaveDataMigrationPolicyInfoAsync|GetSaveDataMigrationPolicyInfoAsync]], throwing an error if needed.
== IClient ==
This is "nn::migration::savedata::IClient".
This was added with [7.0.0+].
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || GetClientProfile
|-
| 100 || GetConnectionRequirement
|-
| 200 || ScanServersAsync
|-
| 201 || ListServers
|-
| 210 || ConnectByServerIdAsync
|-
| 220 || [8.0.0+] AcceptAsync
|-
| 221 || [8.0.0+] DeclineAsync
|-
| 300 || GetStorageShortfall
|-
| 301 || GetTotalTransferInfo
|-
| 302 || GetImmigrantUid
|-
| 303 || GetApplicationId
|-
| 304 || [17.0.0+] ListApplicationIds
|-
| 310 || GetCurrentTransferInfo
|-
| 320 || TransferNextAsync
|-
| 350 || SuspendAsync
|-
| 400 || CompleteAsync
|-
| 500 || Abort
|-
| 510 || [19.0.0+]
|-
| 996 || [8.0.0+] DebugTryGetState
|-
| 997 || [8.0.0+] DebugSynchronizeStateInFinalization0Async
|-
| 998 || [8.0.0+] DebugSynchronizeStateInFinalization1Async
|-
| 999 || DebugSynchronizeStateFinalizedAsync
|}
|}
= Notes =
Savedata transfer ("nn::migration::savedata::IServer"/"nn::migration::savedata::IClient") requires that accounts are linked to the same network-account. acc:su [[NS_services#IManagerForSystemService|IManagerForSystemService]] GetAccountId is used here. The server stores this Id into state, and also stores it in the [[LDN_services|ldn]] AdvertiseData. The client also verifies the Id in AdvertiseData against the Id from GetAccountId for the account(s) being used, during ScanServersAsync.
[[Category:Services]]
[[Category:Services]]