AnyPS5/docs/dev/debt/libSceNpManager.md

# libSceNpManager technical debt

### Silent stubs

- [sceNpUnregisterPlusEventCallback](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - returns 0 whether or not a callback was registered, as `sceNpUnregisterPremiumEventCallback` does: `sceNpRegisterPlusEventCallback` keeps no callback, and a signed-out user gets no plus events

### Unknown function info

- [libSceNpManager pending exports](../../../core/libs/prx/libSceNpManager/Export.cpp) - 149 named callable exports are present in the local `libSceNpManager.sprx` export table and the public PS5 3.20 symbol list. Their signatures and behavior are unverified; each declaration uses the no-parameter unknown-signature convention and throws through `NotImplemented_nid_no_patch`.

- [sceNpGetSandboxInfo](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager, NID `ZVZ++68nNI8`) - the name hashes to the imported NID (found with nidhunt, confirmed with `tools/nid_names.py`). STAR WARS: Galactic Racer (PPSA28416) imports it; its OnlineSubsystemPS5 calls it with one pointer to a 0x50-byte stack buffer and reads the buffer as a string (discussions/3086). The returned string, the exact parameter struct and console errors are unknown, so every call throws without reading or writing caller memory. A working implementation belongs with that title's bring-up.
- [sceNpUnknown_8weiQyIdI3A](../../../core/libs/prx/libSceNpManager/Export.cpp): the original name remains unknown. The native wrapper takes a user ID and a read-only 20-byte online-ID record, validates its first byte and sends the record through IPC. The implementation remains a throwing stub.
- [sceNpUnknown_WxLcN76q19o](../../../core/libs/prx/libSceNpManager/Export.cpp): the original name remains unknown. The native wrapper has no input arguments and returns a 32-bit status from an IPC request after initialization checks. The implementation remains a throwing stub.
- [sceNpSetTimeout](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - the signature follows [orbital](https://github.com/AlexAltea/orbital/blob/b321fcdbd700cc02da1cb1ad25412781d5ec73c6/tools/ida/db_types.json), [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/0fe263a4760dfbfa973366890061749b4af0de97/src/core/libraries/np/np_manager.cpp) and [SharpProspero](https://github.com/SvenGDK/SharpProspero/blob/5dfdb4b0b166e83dc9ae275001afb695f12c7174/src/SharpProspero/Interop/Np/NpAccount.cs); the rejected values (all five 0, negative retries, a resolve timeout under 1 s or another timeout under 10 s, 0 meaning the default) are shadPS4's, not checked on a console. An id that was never created or was deleted returns `REQUEST_NOT_FOUND`, as in shadPS4; there is no network, so the timeouts are not stored
- [sceNpGetUserIdByAccountId](../../../core/libs/prx/libSceNpManager/Export.cpp) - the `(account id, user id output)` signature and its errors follow [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/np/np_manager.cpp): account id 0 or a null output returns `SCE_NP_ERROR_INVALID_ARGUMENT`, and a signed-out NP returns `SCE_NP_ERROR_SIGNED_OUT` without writing the output. NP is always signed out here, so no account id resolves to a user
- [sceNpNotifyPlusFeature](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - PS4 titles import it; its parameter block and what the console does with it for a signed-out user are unknown ([shadPS4](https://github.com/shadps4-emu/shadPS4/blob/81be949167d0060b08f26dc3e055a0b640d129c8/src/core/libraries/np/np_manager.cpp#L1170) returns 0 without reading it), so every call throws.

### Functional

- [sceNpGetAccountCountry, sceNpGetAccountDateOfBirth, sceNpGetAccountLanguage, sceNpGetParentalControlInfo](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - PS4 forms taking an online id, not measured on a console. Signatures and checks follow [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/81be949167d0060b08f26dc3e055a0b640d129c8/src/core/libraries/np/np_manager.cpp): a null pointer is `INVALID_ARGUMENT`; no user is signed in, so no online id matches one and the rest return `USER_NOT_FOUND` without writing, like `sceNpCheckNpAvailability`. Request ids are not checked
- [sceNpGetUserIdByOnlineId](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - the `(online id, user id output)` signature follows [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/81be949167d0060b08f26dc3e055a0b640d129c8/src/core/libraries/np/np_manager.cpp#L703): a null online id or output returns `SCE_NP_ERROR_INVALID_ARGUMENT`, and a signed-out NP returns `SCE_NP_ERROR_SIGNED_OUT` without writing the output, as `sceNpGetUserIdByAccountId` does
- [sceNpCheckPlus](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - the `(request id, parameter, result)` signature follows [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/81be949167d0060b08f26dc3e055a0b640d129c8/src/core/libraries/np/np_manager.cpp#L246): request id 0 or a null parameter or result returns `SCE_NP_ERROR_INVALID_ARGUMENT`, and every other call returns `SCE_NP_ERROR_SIGNED_OUT` without writing the result, as `sceNpCheckPremium` does. The parameter's size and feature fields, which shadPS4 checks, are not read: the errors the console returns for them are not known
- [sceNpGetAccountId, sceNpSetGamePresenceOnline](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - PS4 forms; the `(online id, account id output)` and `(request id, online id, presence)` signatures follow [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/81be949167d0060b08f26dc3e055a0b640d129c8/src/core/libraries/np/np_manager.cpp#L1092-L1096). A null online id or output, or request id 0 for `sceNpSetGamePresenceOnline`, returns `SCE_NP_ERROR_INVALID_ARGUMENT`. `sceNpSetGamePresenceOnline` then returns `SCE_NP_ERROR_REQUEST_NOT_FOUND` for a request that was never created or was deleted, as [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/c1b26558352b863f80142256e4df38585aa7d727/src/core/libraries/np/np_manager.cpp#L1098-L1104) does. Otherwise both return `SCE_NP_ERROR_SIGNED_OUT` without writing, as `sceNpGetAccountIdA` does. The console's result for a signed-out user is not measured
- [NP reachability callbacks](../../../core/libs/prx/libSceNpManager/Export.cpp) retain one callback and its user data; duplicate registration and unregistering an absent callback return the errors used by [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/945dbc3cc3eee80ac3e053b438502ed936fa6bb2/src/core/libraries/np/np_manager.cpp). No callback is delivered because the existing NP model remains signed out with reachability unavailable.
- [sceNpCheckNpAvailability](../../../core/libs/prx/libSceNpManager/Export.cpp): native NP initialization and online-ID lookup are not modeled. The offline host returns user-not-found for valid arguments after clearing the optional one-byte availability output; request ID 0 and a null online-ID pointer return invalid-argument before writing the output.
- [NP state callbacks](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - the registration rules are [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/15abf68c9b52c4b04d094f2837719fdb871021f3/src/core/libraries/np/np_manager.cpp#L857-L901)'s: `sceNpRegisterStateCallbackA` keeps up to 8 callbacks and returns the slot plus 1, a null callback returns `INVALID_ARGUMENT`, a callback already registered `CALLBACK_ALREADY_REGISTERED` and a ninth one `CALLBACK_MAX` (0x8055001D, [np_error.h](https://github.com/shadps4-emu/shadPS4/blob/15abf68c9b52c4b04d094f2837719fdb871021f3/src/core/libraries/np/np_error.h#L38)); `sceNpUnregisterStateCallbackA` returns `INVALID_ARGUMENT` for an id outside 1..8 and `CALLBACK_NOT_REGISTERED` for an empty slot; the legacy [sceNpRegisterStateCallback](https://github.com/shadps4-emu/shadPS4/blob/15abf68c9b52c4b04d094f2837719fdb871021f3/src/core/libraries/np/np_manager.cpp#L981-L1005) keeps one callback with the same errors. Each registration gets `SIGNED_OUT` for the initial user (0x10000000) once, from the next `sceNpCheckCallback` on the calling thread. For the A form this follows [KytyPS5](https://github.com/KytyPS5/KytyPS5/blob/9e41d8320a2774b303fbad344c2347e8d0292e83/src/libs/network.cpp#L3959-L3974), whose [sceNpRegisterStateCallbackA](https://github.com/KytyPS5/KytyPS5/blob/9e41d8320a2774b303fbad344c2347e8d0292e83/src/libs/network.cpp#L4021-L4034) marks the registration pending. KytyPS5 never calls the legacy callback ([sceNpRegisterStateCallback](https://github.com/KytyPS5/KytyPS5/blob/9e41d8320a2774b303fbad344c2347e8d0292e83/src/libs/network.cpp#L4009-L4019) stores nothing); it is called as `(user, SIGNED_OUT, nullptr, userdata)`, as in shadPS4, which passes an NpId only for `SIGNED_IN` ([L823](https://github.com/shadps4-emu/shadPS4/blob/15abf68c9b52c4b04d094f2837719fdb871021f3/src/core/libraries/np/np_manager.cpp#L823), [L938-L940](https://github.com/shadps4-emu/shadPS4/blob/15abf68c9b52c4b04d094f2837719fdb871021f3/src/core/libraries/np/np_manager.cpp#L938-L940)). shadPS4 instead queues `SIGNED_OUT` from the user service login event and delivers it from `sceNpCheckCallback` ([DispatchPendingNpStateCallbacks](https://github.com/shadps4-emu/shadPS4/blob/15abf68c9b52c4b04d094f2837719fdb871021f3/src/core/libraries/np/np_manager.cpp#L903-L962)); the reachability callback is not given an initial `UNAVAILABLE`, unlike that function ([L922-L961](https://github.com/shadps4-emu/shadPS4/blob/15abf68c9b52c4b04d094f2837719fdb871021f3/src/core/libraries/np/np_manager.cpp#L922-L961)). A callback being delivered when another thread unregisters it is still called once. When and how often the console calls the state callbacks, and the errors, are not measured
- [sceNpRegisterGamePresenceCallback](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - accepts any callback, null included, and returns nothing; no game presence event is delivered because the NP model remains signed out. [Kyty](https://github.com/InoriRus/Kyty/blob/4733b7e1c91b10554a52007903d74dc76c39a230/source/emulator/src/Network.cpp#L1549-L1552) ignores the callback the same way, and [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/8d50471b7dc141dd700b51276b8edd1f293bce26/src/core/libraries/np/np_manager.cpp#L1121-L1126) keeps the last one without calling it. Not measured on a PS5
- [sceNpIsPlusMember and sceNpSetContentRestriction](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - the signatures and checks follow [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/a808e76/src/core/libraries/np/np_manager.cpp): a null output or restriction is `INVALID_ARGUMENT`, a restriction size other than 0x18 is `INVALID_SIZE` (0x80550011), and a negative default age, more than 256 age restrictions or a count without an array is `INVALID_ARGUMENT`. Any user is reported as not a Plus member, and a valid restriction is accepted and not stored. Not measured on a PS5

- [sceNpCheckCallbackForLib](../../../core/libs/prx/libSceNpManager/Export.cpp) (libSceNpManager) - not measured on a PS5: it delivers the pending state callbacks like `sceNpCheckCallback`, as [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/a808e76/src/core/libraries/np/np_manager.cpp) does with its pending state events; shadPS4's `sceNpCheckCallback` also runs other registered NP callbacks, which this library does not keep