Nintendo Switch Brew

Loader services: Difference between revisions

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Removed ro info as it is now on its own page.
 
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= ldr:dmnt =
= ldr:shel =
This is "nn::ldr::detail::IDebugMonitorInterface".
This is "nn::ldr::detail::IShellInterface".
 
This service has IPC max_sessions 3.


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 6: Line 8:
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || [[Loader_services#AddProcessToDebugLaunchQueue|AddProcessToDebugLaunchQueue]]
| 0 || [[#SetProgramArgument]]
|-
| 1 || [[Loader_services#ClearDebugLaunchQueue|ClearDebugLaunchQueue]]
|-
|-
| 2 || [[Loader_services#GetNsoInfos|GetNsoInfos]]
| 1 || [[#FlushArguments]]
|}
|}


== AddProcessToDebugLaunchQueue ==
== SetProgramArgument ==
Same as [[Loader_services#AddProcessToLaunchQueue|AddProcessToLaunchQueue]] but for processes marked as debug.
Takes a type-0x9 input buffer with launch arguments (as string), an u32 (size of arguments string), and an input [[NCM_services#ProgramId|ProgramId]]. No output.
 
[11.0.0+] Now takes a type-0x5 buffer instead of type-0x9. Now takes a total of 8-bytes of input, instead of 0x10-bytes total.
 
Loads a process for the specified title-id and passes along the supplied arguments.
Loaded processes are kept in a queue waiting for PM to launch them. The maximum number of waiting processes in this list is 10.
 
== FlushArguments ==
No input/output.


== ClearDebugLaunchQueue ==
Clears the loaded processes waiting queue.
Same as [[Loader_services#ClearLaunchQueue|ClearLaunchQueue]].


== GetNsoInfos ==
= ldr:dmnt =
Takes in a u64 ProcessID, and a C descriptor. Returns the number of NsoInfos copied to output.
This is "nn::ldr::detail::IDebugMonitorInterface".


NsoInfo has the following layout:
This service has IPC max_sessions 2.


{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Offset
! Cmd || Name
! Size
! Description
|-
| 0x0
| 0x20
| "Build ID", from NSO header+0x40.
|-
|-
| 0x20
| 0 || [[#SetProgramArgument2]]
| 0x8
| Mapped address for this NSO
|-
|-
| 0x28
| 1 || [[#FlushArguments2]]
| 0x8
| Mapped size for this NSO
|-
|-
| 2 || [[#GetProcessModuleInfo]]
|}
|}


== SetProgramArgument2 ==
Same as [[#SetProgramArgument]].
== FlushArguments2 ==
Same as [[#FlushArguments]].
== GetProcessModuleInfo ==
Takes a type-0xA output buffer of [[#ModuleInfo]] and an input u64 ProcessId. Returns an output s32.


= ldr:pm =
= ldr:pm =
This is "nn::ldr::detail::IProcessManagerInterface".
This is "nn::ldr::detail::IProcessManagerInterface".
This service has IPC max_sessions 1.


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 52: Line 60:
! Cmd || Name
! Cmd || Name
|-
|-
| 0 || CreateProcess
| 0 || [[#CreateProcess]]
|-
|-
| 1 || [[#GetProgramInfo]]
| 1 || [[#GetProgramInfo]]
|-
|-
| 2 || [[#RegisterTitle]]
| 2 || [[#PinProgram]]
|-
|-
| 3 || [[#UnregisterTitle]]
| 3 || [[#UnpinProgram]]
|-
| 4 || [10.0.0+] [[#SetEnabledProgramVerification]]
|}
|}
== CreateProcess ==
Takes an input [[#PinId]], an input [[#CreateProcessFlag]] and an input ResourceLimit handle. Returns an output Process handle.


== GetProgramInfo ==
== GetProgramInfo ==
Takes a TitleId + StorageId, parses the NPDM, and writes output to a C descriptor buffer as follows:
Takes a type-0x1A output buffer containing a [[#ProgramInfo]] and a [[NCM_services#ProgramLocation|ProgramLocation]]. No output.
 
[20.0.0+] Now takes an additional input u16.
 
== PinProgram ==
Takes a [[NCM_services#ProgramLocation|ProgramLocation]]. Returns an output [[#PinId]].
 
== UnpinProgram ==
Takes an input [[#PinId]]. No output.
 
== SetEnabledProgramVerification ==
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#Header|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.
 
= CreateProcessFlag =
{| class="wikitable" border="1"
|-
!  Value
!  Description
|-
| 0 || EnableDebug
|-
| 1 || DisableAslr
|}
 
= PinId =
This is an u64.
 
= ModuleInfo =
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x20
| ModuleId
|-
| 0x20
| 0x8
| Address
|-
| 0x28
| 0x8
| Size
|}


= ProgramInfo =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
Line 72: Line 133:
| 0x0
| 0x0
| 0x1
| 0x1
| MainThreadPrio. Arg1 to svcStartProcess
| MainThreadPriority
|-
|-
| 0x1
| 0x1
| 0x1
| 0x1
| DefaultCpuId. Arg2 to svcStartProcess
| DefaultCpuId
|-
|-
| 0x2
| 0x2
| 0x1
| 0x2
| ApplicationType, see [[Process Manager services|here]].
| Flags
|-
| 0x3
| 0x1
| Padding
|-
|-
| 0x4
| 0x4
| 0x4
| 0x4
| MainThreadStackSize. Arg3 to svcStartProcess
| MainThreadStackSize
|-
|-
| 0x8
| 0x8
| 0x8
| 0x8
| TitleIdRange_Min
| [[NCM_services#ProgramId|ProgramId]]
|-
|-
| 0x10
| 0x10
| 0x4
| 0x4
| ACID [[NPDM#Service Access Control|Service Access Control]] list size
| AcidSacSize
|-
|-
| 0x14
| 0x14
| 0x4
| 0x4
| ACI0 [[NPDM#Service Access Control|Service Access Control]] list size
| AciSacSize
|-
|-
| 0x18
| 0x18
| 0x4
| 0x4
| ACID [[NPDM#FS Access Control|FS Access Control]] buffer size
| AcidFacSize
|-
|-
| 0x1C
| 0x1C
| 0x4
| 0x4
| ACI0 [[NPDM#FS Access Control|FS Access Control]] buffer size
| AciFacSize
|-
|-
| 0x20
| 0x20
| <Varies>
| 0x10
| ACID [[NPDM#Service Access Control|Service Access Control]] list
| [19.0.0+] Reserved
|-
| <Varies>
| <Varies>
| ACI0 [[NPDM#Service Access Control|Service Access Control]] list
|-
| <Varies>
| <Varies>
| ACID [[NPDM#FS Access Control|FS Access Control]] buffer
|-
|-
| <Varies>
| [19.0.0+] 0x30 ([1.0.0-18.1.0] 0x20)
| <Varies>
| Variable
| ACI0 [[NPDM#FS Access Control|FS Access Control]]
| AcidSac
|}
 
== RegisterTitle ==
Takes a TitleId + StorageId, returns an index.
 
== UnregisterTitle ==
Takes the index from [[#RegisterTitle]].
 
= ldr:shel =
This is "nn::ldr::detail::IShellInterface".
 
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| Variable
| Variable
| AciSac
|-
|-
| 0 || [[#AddProcessToLaunchQueue]]
| Variable
| Variable
| AcidFac
|-
|-
| 1 || [[#ClearLaunchQueue]]
| Variable
| Variable
| AciFac
|}
|}
== AddProcessToLaunchQueue ==
Takes a type-0x19 input buffer with launch arguments (as string), an u32 (size of arguments string), and an input title-id.
Loads a process for the specified title-id and passes along the supplied arguments.
Loaded processes are kept in a queue waiting for PM to launch them. The maximum number of waiting processes in this list is 10.
== ClearLaunchQueue ==
Clears the loaded processes waiting queue.


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