LDN services

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LDN handles all local network communication.

ldn:m

This is "nn::ldn::detail::IMonitorServiceCreator".

Cmd Name
0 #CreateMonitorService

CreateMonitorService

Returns an #IMonitorService.

The user-process closes the IMonitorServiceCreator object immediately after using this cmd.

IMonitorService

This is "nn::ldn::detail::IMonitorService".

Cmd Name
0 #GetStateForMonitor
1 #GetNetworkInfoForMonitor
2 #GetIpv4AddressForMonitor
3 #GetDisconnectReasonForMonitor
4 #GetSecurityParameterForMonitor
5 #GetNetworkConfigForMonitor
100 #InitializeMonitor
101 #FinalizeMonitor

GetStateForMonitor

No input, returns an output u32.

sdknso implements this by returning the u32, with 0 being returned on error.

GetNetworkInfoForMonitor

Takes a type-0x1A output buffer containing a #NetworkInfo.

GetIpv4AddressForMonitor

No input, returns an output #Ipv4Address and a #SubnetMask.

GetDisconnectReasonForMonitor

No input, returns an output s16.

This is not exposed by sdknso.

GetSecurityParameterForMonitor

No input, returns an output #SecurityParameter.

This is not exposed by sdknso.

GetNetworkConfigForMonitor

No input, returns an output #NetworkConfig.

This is not exposed by sdknso.

InitializeMonitor

No input/output.

This is used immediately after object creation. Official sw will Abort if this fails.

FinalizeMonitor

No input/output.

This is used during service exit, prior to closing the object. Official sw will Abort if this fails.

ldn:s

This is "nn::ldn::detail::ISystemServiceCreator".

Cmd Name
0 #CreateSystemLocalCommunicationService

CreateSystemLocalCommunicationService

Returns an #ISystemLocalCommunicationService.

The user-process closes the ISystemServiceCreator object immediately after using this cmd. Official sw ignores errors from this cmd.

ISystemLocalCommunicationService

This is "nn::ldn::detail::ISystemLocalCommunicationService".

Cmd Name
0 #GetState
1 #GetNetworkInfo
2 #GetIpv4Address
3 #GetDisconnectReason
4 #GetSecurityParameter
5 #GetNetworkConfig
100 #AttachStateChangeEvent
101 #GetNetworkInfoLatestUpdate
102 #Scan
103 #ScanPrivate
104 [5.0.0+] #SetWirelessControllerRestriction
200 #OpenAccessPoint
201 #CloseAccessPoint
202 #CreateNetwork
203 #CreateNetworkPrivate
204 #DestroyNetwork
205 #Reject
206 #SetAdvertiseData
207 #SetStationAcceptPolicy
208 #AddAcceptFilterEntry
209 #ClearAcceptFilter
300 #OpenStation
301 #CloseStation
302 #Connect
303 #ConnectPrivate
304 #Disconnect
400 #InitializeSystem
401 #FinalizeSystem
402 [4.0.0+] #SetOperationMode
403 [7.0.0+] #InitializeSystem2

GetState

No input, returns an output u32.

sdknso implements this by returning the u32, with 0 being returned on error / when service isn't initialized.

GetNetworkInfo

Takes a type-0x1A output buffer containing a #NetworkInfo.

GetIpv4Address

No input, returns an output #Ipv4Address and a #SubnetMask.

GetDisconnectReason

No input, returns an output s16.

sdknso implements this by returning the s16 as a s32, with -1 being returned on error.

GetSecurityParameter

No input, returns an output #SecurityParameter.

GetNetworkConfig

No input, returns an output #NetworkConfig.

AttachStateChangeEvent

No input, returns an output Event handle.

sdknso uses EventClearMode=1 with this. sdknso will Abort if this cmd fails.

GetNetworkInfoLatestUpdate

Takes a type-0x1A output buffer containing a #NetworkInfo and a type-0xA output buffer containing an array of #NodeLatestUpdate.

Scan

Takes a type-0x22 output buffer containing an array of #NetworkInfo, a s16, a #ScanFilter, returns an output s16.

sdknso copies the output s16 to a s32, the value passed for the input s16 is from an user-specified s32.

ScanPrivate

Takes a type-0x22 output buffer containing an array of #NetworkInfo, a s16, a #ScanFilter, returns an output s16.

sdknso copies the output s16 to a s32, the value passed for the input s16 is from an user-specified s32.

SetWirelessControllerRestriction

Takes an input #WirelessControllerRestriction, no output.

OpenAccessPoint

No input/output.

CloseAccessPoint

No input/output.

CreateNetwork

Takes an input #SecurityConfig, an #UserConfig, a #NetworkConfig, no output.

CreateNetworkPrivate

Takes an input #SecurityConfig, a #SecurityParameter, an #UserConfig, a #NetworkConfig, a type-0x9 input buffer containing an array of #AddressEntry, no output.

DestroyNetwork

No input/output.

Reject

Takes an input #Ipv4Address, no output.

SetAdvertiseData

Takes a type-0x21 input buffer, no output.

The input buffer contains arbitrary user data.

SetStationAcceptPolicy

Takes an input #AcceptPolicy, no output.

AddAcceptFilterEntry

Takes an input #MacAddress, no output.

There are two sdknso funcs implementing this: one which takes a #MacAddress directly, the other loads the #MacAddress from the input #NodeInfo.

ClearAcceptFilter

No input/output.

OpenStation

No input/output.

CloseStation

No input/output.

Connect

Takes a type-0x19 input buffer containing a #NetworkInfo, a #SecurityConfig, an #UserConfig, a s32, a #ConnectOption, no output.

ConnectPrivate

Takes a #SecurityConfig, #SecurityParameter, an #UserConfig, a s32, a #ConnectOption, a #NetworkConfig, no output.

Disconnect

No input/output.

InitializeSystem

Takes an input PID and an u64 pid_placeholder.

This is used immediately after object creation.

With [7.0.0+] #InitializeSystem2 is used instead.

FinalizeSystem

No input/output.

This is used during service exit, prior to closing the object. Official sw will Abort if this fails.

SetOperationMode

Takes an input #OperationMode, no output.

InitializeSystem2

Takes an input PID, an u32, and an u64 pid_placeholder.

Official sw uses hard-coded value 0x1 for the u32.

ldn:u

This is "nn::ldn::detail::IUserServiceCreator".

Cmd Name
0 #CreateUserLocalCommunicationService

CreateUserLocalCommunicationService

Returns an #IUserLocalCommunicationService.

The user-process closes the IUserServiceCreator object immediately after using this cmd. Official sw ignores errors from this cmd.

IUserLocalCommunicationService

This is "nn::ldn::detail::IUserLocalCommunicationService".

Cmd Name
0 #GetState
1 #GetNetworkInfo
2 #GetIpv4Address
3 #GetDisconnectReason
4 #GetSecurityParameter
5 #GetNetworkConfig
100 #AttachStateChangeEvent
101 #GetNetworkInfoLatestUpdate
102 #Scan
103 #ScanPrivate
104 [5.0.0+] #SetWirelessControllerRestriction
200 #OpenAccessPoint
201 #CloseAccessPoint
202 #CreateNetwork
203 #CreateNetworkPrivate
204 #DestroyNetwork
205 #Reject
206 #SetAdvertiseData
207 #SetStationAcceptPolicy
208 #AddAcceptFilterEntry
209 #ClearAcceptFilter
300 #OpenStation
301 #CloseStation
302 #Connect
303 #ConnectPrivate
304 #Disconnect
400 #Initialize
401 #Finalize
402 [7.0.0+] #Initialize2

Initialize

Takes an input PID and an u64 pid_placeholder.

This is used immediately after object creation.

With [7.0.0+] #Initialize2 is used instead.

Finalize

No input/output.

This is used during service exit, prior to closing the object. Official sw will Abort if this fails.

Initialize2

Takes an input PID, an u32, and an u64 pid_placeholder.

Official sw uses hard-coded value 0x1 for the u32.

ndd

This is "nn::ndd::IService".

This was added with [5.0.0] and removed with [6.0.0].

Cmd Name
0 EnableAutoCommunication
1 DisableAutoCommunication
2 IsAutoCommunicationEnabled
3 EnablePowerSave
4 DisablePowerSave
5 IsPowerSaveEnabled
6 IsNetworkActive
7 AcquireSendDataUpdateEvent
8 AddSendData
9 ClearSendData
10 GetSendData
11 AcquireReceiveDataEvent
12 GetCurrentReceiveDataCounter
13 GetOldestReceiveDataCounter
14 GetNextReceiveDataCounter
15 GetAvailableReceiveDataCount
16 GetRecentReceiveDataCounter
17 GetReceiveData
18 AddReceiveData
19 ClearReceiveData
20 ClearDataIdFilter
21 AcquireDeviceScanEvent
22 StartDeviceScan
23 CancelDeviceScan
24 GetDeviceScanResult

lp2p:app, lp2p:sys

These are "nn::lp2p::detail::INetworkServiceCreator".

These were added with [9.0.0+].

Cmd Name
0 CreateNetworkService
8 CreateNetworkServiceMonitor

INetworkService

This is "nn::lp2p::detail::INetworkService".

Cmd Name
0 Initialize
[9.0.0-9.0.1] 256 AttachNetworkInterfaceStateChangeEvent
[9.0.0-9.0.1] 264 GetNetworkInterfaceLastError
[9.0.0-9.0.1] 272 GetRole
[9.0.0-9.0.1] 280
[9.0.0-9.0.1] 288 GetGroupInfo
[9.0.0-9.0.1] 296
[9.0.0-9.0.1] 304
[9.0.0-9.0.1] 312
[9.0.0-9.0.1] 320
512
768
776
784
1536 SendToOtherGroup
1544 RecvFromOtherGroup
1552 AddAcceptableGroupId
1560 [9.1.0+]

Initialize

Returns 0.

INetworkServiceMonitor

This is "nn::lp2p::detail::INetworkServiceMonitor".

This interface has no commands, until [9.1.0+] which added actual commands.

Cmd Name
0 Initialize
256 AttachNetworkInterfaceStateChangeEvent
264 GetNetworkInterfaceLastError
272 GetRole
280
281
288 GetGroupInfo
296
304
312
320
328 AttachJoinEvent
336

Initialize

Returns 0.

lp2p:m

This is "nn::lp2p::detail::IMonitorServiceCreator".

This was added with [9.1.0+].

Cmd Name
0 #CreateMonitorService

CreateMonitorService

Takes a PID, a total of 0x10-bytes of input, and returns an #IMonitorService.

IMonitorService

This is "nn::lp2p::detail::IMonitorService".

Cmd Name
0 Initialize
288 GetGroupInfo
320

Initialize

Returns 0.

Ipv4Address

This is "nn::ldn::Ipv4Address". This is a 0x4-byte struct with 4-byte alignment.

This is essentially the same as struct in_addr.

SubnetMask

This is "nn::ldn::SubnetMask". This is a 0x4-byte struct with 4-byte alignment.

This is essentially the same as struct in_addr.

Ssid

This is "nn::ldn::Ssid".

When converting a Ssid to a string, the loaded chars from the string must be in the range of 0x20-0x7F, otherwise the byte written to the string will be 0.

Offset Size Description
0x0 0x1 Length excluding NUL-terminator, must be 0x1-0x20.
0x1 0x21 SSID string including NUL-terminator, str[{above length}] must be 0.

NetworkInfo

This is "nn::ldn::NetworkInfo". This is a 0x480-byte struct.

ScanFilter

This is "nn::ldn::ScanFilter". This is a 0x60-byte struct with 8-byte alignment.

sdknso copies the input ScanFilter to a tmp struct on stack, which is then used with the cmd.

Offset Size Description
0x0 0x20
0x20 0x4
0x24 0x6 #MacAddress (Only copied with #ScanPrivate)
0x2A 0x22 #Ssid
0x5C 0x4 Masked with 0x37 for #Scan, with #ScanPrivate this is masked with 0x3F.

SecurityParameter

This is "nn::ldn::SecurityParameter". This is a 0x20-byte struct with 1-byte alignment.

NetworkConfig

This is "nn::ldn::NetworkConfig". This is a 0x20-byte struct with 8-byte alignment.

sdknso copies the input NetworkConfig to a tmp struct on stack, which is then used with the cmd (#CreateNetwork, #CreateNetworkPrivate, #ConnectPrivate).

Offset Size Description
0x0 0x8
0x8 0x2 Cleared to zero during the copy.
0xA 0x2
0xC 0x4 Cleared to zero during the copy.
0x10 0x2
0x12 0x1
0x13 0x1 Cleared to zero during the copy.
0x14 0x2
0x16 0xA Cleared to zero during the copy.

NodeLatestUpdate

This is "nn::ldn::NodeLatestUpdate". This is a 0x8-byte struct.

WirelessControllerRestriction

This is "nn::ldn::WirelessControllerRestriction". This is an u32 enum.

SecurityConfig

This is "nn::ldn::SecurityConfig". This is a 0x44-byte struct with 2-byte alignment.

SecurityParameter

This is "nn::ldn::SecurityParameter". This is a 0x20-byte struct with 1-byte alignment.

UserConfig

This is "nn::ldn::UserConfig". This is a 0x30-byte struct with 1-byte alignment.

sdknso copies the input UserConfig to a tmp struct on stack, which is then used with the cmd.

Offset Size Description
0x0 0x20 NUL-terminated string.
0x20 0x10 Cleared to zero during the copy.

AddressEntry

This is "nn::ldn::AddressEntry". This is a 0x24-byte struct.

AcceptPolicy

This is "nn::ldn::AcceptPolicy". This is an u8.

MacAddress

This is "nn::ldn::MacAddress". This is a 6-byte struct with 1-byte alignment.

NodeInfo

This is "nn::ldn::NodeInfo".

Offset Size Description
0x0 0x4
0x4 0x6 #MacAddress

ConnectOption

This is "nn::ldn::ConnectOption". This is an u32 bitmask.

There's two versions of the sdknso funcs for #Connect/#ConnectPrivate: the version where the ConnectOption isn't user-specified uses a default value of 0x1 for it, with the same ShowError code without the bit0 check.

When bit0 here is set after using the above cmds, the sdknso funcs will use ShowError with the returned Result if: (rc & 0x3FE1FF) == 0xE0CB.

OperationMode

This is "nn::ldn::OperationMode". This is an u32.

Retrieved from "https://switchbrew.org/w/index.php?title=LDN_services&oldid=9463"