libnx/nx/include/switch/services/ldn.h
2025-07-25 22:13:20 -04:00

579 lines
24 KiB
C

/**
* @file ldn.h
* @brief LDN (local network communications) IPC wrapper. See also: https://switchbrew.org/wiki/LDN_services
* @author yellows8
* @copyright libnx Authors
*/
#pragma once
#include "../types.h"
#include "../sf/service.h"
#include "../kernel/event.h"
typedef enum {
LdnServiceType_User = 0, ///< Initializes ldn:u.
LdnServiceType_System = 1, ///< Initializes ldn:s.
} LdnServiceType;
/// State loaded by \ref ldnmGetStateForMonitor / \ref ldnGetState.
typedef enum {
LdnState_None = 0, ///< None
LdnState_Initialized = 1, ///< Initialized
LdnState_AccessPoint = 2, ///< AccessPoint (\ref ldnOpenAccessPoint)
LdnState_AccessPointCreated = 3, ///< AccessPointCreated (\ref ldnCreateNetwork / \ref ldnCreateNetworkPrivate)
LdnState_Station = 4, ///< Station (\ref ldnOpenStation)
LdnState_StationConnected = 5, ///< StationConnected (\ref ldnConnect / \ref ldnConnectPrivate)
LdnState_Error = 6, ///< Error
} LdnState;
/// DisconnectReason loaded by \ref ldnGetDisconnectReason.
typedef enum {
LdnDisconnectReason_None = 0, ///< None
LdnDisconnectReason_DisconnectedByUser = 1, ///< DisconnectedByUser
LdnDisconnectReason_DisconnectedBySystem = 2, ///< DisconnectedBySystem
LdnDisconnectReason_DestroyedByUser = 3, ///< DestroyedByUser
LdnDisconnectReason_DestroyedBySystem = 4, ///< DestroyedBySystem
LdnDisconnectReason_Rejected = 5, ///< Rejected
LdnDisconnectReason_SignalLost = 6, ///< SignalLost
} LdnDisconnectReason;
/// ScanFilterFlag
typedef enum {
LdnScanFilterFlag_LocalCommunicationId = BIT(0), ///< Enables using LdnScanFilter::network_id LdnIntentId::local_communication_id.
LdnScanFilterFlag_SessionId = BIT(1), ///< Enables using LdnScanFilter::network_id session_id.
LdnScanFilterFlag_NetworkType = BIT(2), ///< Enables using LdnScanFilter::network_type.
LdnScanFilterFlag_Bssid = BIT(3), ///< Enables using LdnScanFilter::bssid. Only available with \ref ldnScanPrivate.
LdnScanFilterFlag_Ssid = BIT(4), ///< Enables using LdnScanFilter::ssid.
LdnScanFilterFlag_SceneId = BIT(5), ///< Enables using LdnScanFilter::network_id LdnIntentId::scene_id.
LdnScanFilterFlag_IntentId = LdnScanFilterFlag_LocalCommunicationId | LdnScanFilterFlag_SceneId, ///< Enables using LdnScanFilter::network_id intent_id.
LdnScanFilterFlag_NetworkId = LdnScanFilterFlag_IntentId | LdnScanFilterFlag_SessionId, ///< Enables using LdnScanFilter::network_id.
} LdnScanFilterFlag;
/// AcceptPolicy
typedef enum {
LdnAcceptPolicy_AlwaysAccept = 0, ///< AlwaysAccept
LdnAcceptPolicy_AlwaysReject = 1, ///< AlwaysReject
LdnAcceptPolicy_BlackList = 2, ///< BlackList, addresses in the list (\ref ldnAddAcceptFilterEntry) are not allowed.
LdnAcceptPolicy_WhiteList = 3, ///< WhiteList, only addresses in the list (\ref ldnAddAcceptFilterEntry) are allowed.
} LdnAcceptPolicy;
/// SecurityMode. LdnSecurityMode_Product can be used as the default value. The ldn cmds which use an input SecurityMode normally overwrite the SecurityMode.
typedef enum {
LdnSecurityMode_Any = 0, ///< Any
LdnSecurityMode_Product = 1, ///< Product
LdnSecurityMode_Debug = 2, ///< Debug
LdnSecurityMode_SystemDebug = 3, ///< SystemDebug
} LdnSecurityMode;
/// OperationMode
typedef enum {
LdnOperationMode_Stable = 0, ///< Stable
LdnOperationMode_HighSpeed = 1, ///< HighSpeed
} LdnOperationMode;
/// WirelessControllerRestriction
typedef enum {
LdnWirelessControllerRestriction_Disabled = 0, ///< Disabled
LdnWirelessControllerRestriction_Enabled = 1, ///< Enabled
} LdnWirelessControllerRestriction;
/// Protocol
typedef enum {
LdnProtocol_NX = 1, ///< NX (default)
LdnProtocol_Unknown3 = 3, ///< (NXAndOunce?)
} LdnProtocol;
/// Ipv4Address. This is essentially the same as struct in_addr - hence this can be used with standard sockets (byteswap required).
typedef struct {
u32 addr; ///< Address
} LdnIpv4Address;
/// SubnetMask. This is essentially the same as struct in_addr - hence this can be used with standard sockets (byteswap required).
typedef struct {
u32 mask; ///< Mask
} LdnSubnetMask;
/// MacAddress
typedef struct {
u8 addr[6]; ///< Address
} LdnMacAddress;
/// Ssid
typedef struct {
u8 len; ///< Length excluding NUL-terminator, must be 0x1-0x20.
char str[0x21]; ///< SSID string including NUL-terminator, str[len_field] must be 0. The chars in this string must be be in the range of 0x20-0x7F, for when the Ssid is converted to a string (otherwise the byte written to the string will be 0).
} LdnSsid;
/// NodeLatestUpdate
typedef struct {
u8 state_change; ///< StateChange. The field in state is reset to zero by \ref ldnGetNetworkInfoLatestUpdate after loading it.
u8 reserved[0x7]; ///< Reserved
} LdnNodeLatestUpdate;
/// AddressEntry
typedef struct {
LdnIpv4Address ip_addr; ///< \ref LdnIpv4Address
LdnMacAddress mac_addr; ///< \ref LdnMacAddress
u8 reserved[0x2]; ///< Reserved
} LdnAddressEntry;
/// NodeInfo
typedef struct {
LdnIpv4Address ip_addr; ///< \ref LdnIpv4Address
LdnMacAddress mac_addr; ///< \ref LdnMacAddress
s8 node_id; ///< NodeId
u8 is_connected; ///< IsConnected flag
char user_name[0x21]; ///< LdnUserConfig::user_name
u8 platform; ///< [19.0.0+] Platform? (0 = NX, 1 = Ounce)
s16 local_communication_version; ///< LocalCommunicationVersion
u8 reserved_x30[0x10]; ///< Reserved
} LdnNodeInfo;
/// UserConfig. The input struct is copied to a tmp struct, which is then used with the cmd.
typedef struct {
char user_name[0x21]; ///< UserName (NUL-terminated string for the user name)
u8 reserved[0xF]; ///< Reserved
} LdnUserConfig;
/// IntentId
typedef struct {
s64 local_communication_id; ///< LocalCommunicationId. \ref ldnCreateNetwork, \ref ldnCreateNetworkPrivate, \ref ldnConnect, \ref ldnConnectPrivate (also \ref LdnScanFilter when enabled): When -1, this is overwritten with the first LocalCommunicationId from the user-process NACP, if loading fails value 0 is written instead. Otherwise when not -1, if NACP loading is successful, this field must match one of the LocalCommunicationIds from there.
u8 reserved_x8[0x2]; ///< Reserved
u16 scene_id; ///< SceneId. Arbitrary user data, this can be used for filtering with \ref LdnScanFilter (::LdnScanFilterFlag_SceneId) for example.
u8 reserved_xC[0x4]; ///< Reserved
} LdnIntentId;
/// SessionId
typedef struct {
u8 random[0x10]; ///< Random. Used to generate/overwrite the ssid when needed.
} LdnSessionId;
/// NetworkId
typedef struct {
LdnIntentId intent_id; ///< IntentId
LdnSessionId session_id; ///< SessionId
} LdnNetworkId;
/// CommonNetworkInfo
typedef struct {
LdnMacAddress bssid; ///< \ref LdnMacAddress
LdnSsid ssid; ///< \ref LdnSsid
s16 channel; ///< Channel
s8 link_level; ///< LinkLevel
u8 network_type; ///< NetworkType
u8 reserved[0x4]; ///< Reserved
} LdnCommonNetworkInfo;
/// NetworkInfo
typedef struct {
LdnNetworkId network_id; ///< NetworkId
LdnCommonNetworkInfo common; ///< CommonNetworkInfo
u8 server_random[0x10]; ///< LdnSecurityParameter::server_random
u16 security_mode; ///< LdnSecurityConfig::security_mode
u8 station_accept_policy; ///< \ref LdnAcceptPolicy
u8 version; ///< Version
u8 reserved_x14[0x2]; ///< Reserved
s8 node_count_max; ///< NodeCountMax
u8 node_count; ///< NodeCount, number of set entries in nodes.
LdnNodeInfo nodes[8]; ///< Array of \ref LdnNodeInfo, starting with the AccessPoint node.
u8 reserved_x218[0x2]; ///< Reserved
u16 advertise_data_size; ///< AdvertiseDataSize (\ref ldnSetAdvertiseData)
u8 advertise_data[0x180]; ///< AdvertiseData (\ref ldnSetAdvertiseData)
u8 reserved_x39C[0x8C]; ///< Reserved
u64 reserved_x428; ///< Reserved
} LdnNetworkInfo;
/// ScanFilter. \ref ldnScan / \ref ldnScanPrivate will only return the \ref LdnNetworkInfo when validating the \ref LdnNetworkInfo with LdnScanFilter was sucessful, with the fields enabled by \ref LdnScanFilterFlag.
typedef struct {
LdnNetworkId network_id; ///< NetworkId
u32 network_type; ///< NetworkType (::LdnScanFilterFlag_NetworkType)
LdnMacAddress bssid; ///< Bssid (::LdnScanFilterFlag_Bssid)
LdnSsid ssid; ///< Ssid (::LdnScanFilterFlag_Ssid)
u8 reserved[0x10]; ///< Reserved
u32 flags; ///< Bitmask for \ref LdnScanFilterFlag.
} LdnScanFilter;
/// SecurityConfig
typedef struct {
u16 security_mode; ///< \ref LdnSecurityMode Overwritten by \ref ldnCreateNetwork, \ref ldnCreateNetworkPrivate, \ref ldnConnect, \ref ldnConnectPrivate.
u16 passphrase_size; ///< PassphraseSize. Must be 0x10-0x40.
u8 passphrase[0x40]; ///< Passphrase, used with key derivation.
} LdnSecurityConfig;
/// SecurityParameter. The struct used by \ref ldnCreateNetwork internally is randomly-generated.
typedef struct {
u8 server_random[0x10]; ///< ServerRandom, used with the same key derivation as \ref LdnSecurityConfig.
LdnSessionId session_id; ///< SessionId
} LdnSecurityParameter;
/// NetworkConfig. The input struct is copied to a tmp struct, which is then used with the cmd (\ref ldnCreateNetwork, \ref ldnCreateNetworkPrivate, \ref ldnConnectPrivate).
typedef struct {
LdnIntentId intent_id; ///< IntentId
s16 channel; ///< LdnCommonNetworkInfo::channel. Channel, can be zero. Overwritten internally by \ref ldnCreateNetwork.
s8 node_count_max; ///< LdnNetworkInfo::node_count_max. \ref ldnCreateNetwork / \ref ldnCreateNetworkPrivate: Must be 0x1-0x8.
u8 reserved_x13; ///< Cleared to zero for the tmp struct.
s16 local_communication_version; ///< LdnNodeInfo::local_communication_version, for the first entry in LdnNetworkInfo::nodes. Must not be negative.
u8 reserved_x16[0xA]; ///< Cleared to zero for the tmp struct.
} LdnNetworkConfig;
/// ActionFrameSettings
typedef struct {
s64 local_communication_id; ///< LocalCommunicationId (Same handling as LdnIntentId::local_communication_id)
u8 reserved[0x34]; ///< Reserved
u16 security_mode; ///< \ref LdnSecurityMode (Must be ::LdnSecurityMode_Product or ::LdnSecurityMode_Debug, internally this is overriden)
u16 passphrase_size; ///< PassphraseSize (Must be 0x10-0x40)
u8 passphrase[0x40]; ///< Passphrase
} LdnActionFrameSettings;
///@name ldn:m
///@{
/// Initialize ldn:m.
Result ldnmInitialize(void);
/// Exit ldn:m.
void ldnmExit(void);
/// Gets the Service object for IMonitorService.
Service* ldnmGetServiceSession_MonitorService(void);
/**
* @brief GetState
* @param[out] out \ref LdnState
*/
Result ldnmGetState(LdnState *out);
/**
* @brief GetNetworkInfo
* @param[out] out \ref LdnNetworkInfo
*/
Result ldnmGetNetworkInfo(LdnNetworkInfo *out);
/**
* @brief GetIpv4Address
* @param[out] addr \ref LdnIpv4Address
* @param[out] mask \ref LdnSubnetMask
*/
Result ldnmGetIpv4Address(LdnIpv4Address *addr, LdnSubnetMask *mask);
/**
* @brief GetSecurityParameter
* @note Not exposed by official sw.
* @param[out] out \ref LdnSecurityParameter
*/
Result ldnmGetSecurityParameter(LdnSecurityParameter *out);
/**
* @brief GetNetworkConfig
* @note Not exposed by official sw.
* @param[out] out \ref LdnNetworkConfig
*/
Result ldnmGetNetworkConfig(LdnNetworkConfig *out);
///@}
///@name ldn
///@{
/// Initialize ldn.
Result ldnInitialize(LdnServiceType service_type);
/// Exit ldn.
void ldnExit(void);
/// Gets the Service object for IUserLocalCommunicationService/ISystemLocalCommunicationService.
Service* ldnGetServiceSession_LocalCommunicationService(void);
/**
* @brief GetState
* @param[out] out \ref LdnState
*/
Result ldnGetState(LdnState *out);
/**
* @brief GetNetworkInfo
* @param[out] out \ref LdnNetworkInfo
*/
Result ldnGetNetworkInfo(LdnNetworkInfo *out);
/**
* @brief GetIpv4Address
* @param[out] addr \ref LdnIpv4Address
* @param[out] mask \ref LdnSubnetMask
*/
Result ldnGetIpv4Address(LdnIpv4Address *addr, LdnSubnetMask *mask);
/**
* @brief GetDisconnectReason
* @param[out] out \ref LdnDisconnectReason
*/
Result ldnGetDisconnectReason(LdnDisconnectReason *out);
/**
* @brief GetSecurityParameter
* @param[out] out \ref LdnSecurityParameter
*/
Result ldnGetSecurityParameter(LdnSecurityParameter *out);
/**
* @brief GetNetworkConfig
* @param[out] out \ref LdnNetworkConfig
*/
Result ldnGetNetworkConfig(LdnNetworkConfig *out);
/**
* @brief GetStateChangeEvent
* @note The Event must be closed by the user once finished with it.
* @note This is signaled when the data returned by \ref ldnGetNetworkInfo / \ref ldnGetNetworkInfoLatestUpdate is updated.
* @param[out] out_event Output Event with autoclear=true.
*/
Result ldnGetStateChangeEvent(Event* out_event);
/**
* @brief GetNetworkInfoAndHistory
* @param[out] network_info \ref LdnNetworkInfo
* @param[out] nodes Output array of \ref LdnNodeLatestUpdate.
* @param[in] count Size of the nodes array in entries, must be 8.
*/
Result ldnGetNetworkInfoAndHistory(LdnNetworkInfo *network_info, LdnNodeLatestUpdate *nodes, s32 count);
/**
* @brief Scan
* @note \ref LdnState must be ::LdnState_AccessPointCreated, ::LdnState_Station, or ::LdnState_StationConnected.
* @note This is the same as \ref ldnScanPrivate (minus the masking for LdnScanFilter::flags), except this has the same channel-override functionality as \ref ldnCreateNetwork.
* @param[in] channel Channel, value 0 can be used for this.
* @param[in] filter \ref LdnScanFilter
* @param[out] network_info Output array of \ref LdnNetworkInfo.
* @param[in] count Size of the network_info array in entries. Must be at least 1, this is clamped to a maximum of 0x18 internally.
* @param[out] total_out Total output entries.
*/
Result ldnScan(s32 channel, const LdnScanFilter *filter, LdnNetworkInfo *network_info, s32 count, s32 *total_out);
/**
* @brief ScanPrivate
* @note \ref LdnState must be ::LdnState_AccessPointCreated, ::LdnState_Station, or ::LdnState_StationConnected.
* @note See \ref ldnScan.
* @param[in] channel Channel, value 0 can be used for this.
* @param[in] filter \ref LdnScanFilter
* @param[out] network_info Output array of \ref LdnNetworkInfo.
* @param[in] count Size of the network_info array in entries. Must be at least 1, this is clamped to a maximum of 0x18 internally.
* @param[out] total_out Total output entries.
*/
Result ldnScanPrivate(s32 channel, const LdnScanFilter *filter, LdnNetworkInfo *network_info, s32 count, s32 *total_out);
/**
* @brief SetWirelessControllerRestriction
* @note Only available on [5.0.0+].
* @note \ref LdnState must be ::LdnState_Initialized.
* @param[in] restriction \ref LdnWirelessControllerRestriction
*/
Result ldnSetWirelessControllerRestriction(LdnWirelessControllerRestriction restriction);
/**
* @brief SetProtocol
* @note This is only usable with [20.0.0+] (with [18.0.0-19-0.1] this is available but not usable).
* @note \ref LdnState must be ::LdnState_Initialized. If a non-default Protocol is wanted, use this after \ref ldnInitialize.
* @param[in] protocol \ref LdnProtocol
*/
Result ldnSetProtocol(LdnProtocol protocol);
/**
* @brief OpenAccessPoint
* @note \ref LdnState must be ::LdnState_Initialized, this eventually sets the State to ::LdnState_AccessPoint.
*/
Result ldnOpenAccessPoint(void);
/**
* @brief CloseAccessPoint
* @note \ref LdnState must be ::LdnState_AccessPoint or ::LdnState_AccessPointCreated, this eventually sets the State to ::LdnState_Initialized.
* @note Used automatically internally by \ref ldnExit if needed.
*/
Result ldnCloseAccessPoint(void);
/**
* @brief CreateNetwork
* @note \ref LdnState must be ::LdnState_AccessPoint, this eventually sets the State to ::LdnState_AccessPointCreated.
* @param[in] sec_config \ref LdnSecurityConfig
* @param[in] user_config \ref LdnUserConfig
* @param[in] network_config \ref LdnNetworkConfig
*/
Result ldnCreateNetwork(const LdnSecurityConfig *sec_config, const LdnUserConfig *user_config, const LdnNetworkConfig *network_config);
/**
* @brief CreateNetworkPrivate
* @note \ref LdnState must be ::LdnState_AccessPoint, this eventually sets the State to ::LdnState_AccessPointCreated.
* @note This is the same as \ref ldnCreateNetwork besides the additional user-specified params, and with this cmd LdnNetworkConfig::channel is not overwritten (unlike \ref ldnCreateNetwork).
* @param[in] sec_config \ref LdnSecurityConfig
* @param[in] sec_param \ref LdnSecurityParameter
* @param[in] user_config \ref LdnUserConfig
* @param[in] network_config \ref LdnNetworkConfig
* @param[in] addrs Input array of \ref LdnAddressEntry. This can be NULL.
* @param[in] count Size of the addrs array in entries. This must be <=8. This can be 0, in which case the network will be non-Private like \ref ldnCreateNetwork.
*/
Result ldnCreateNetworkPrivate(const LdnSecurityConfig *sec_config, const LdnSecurityParameter *sec_param, const LdnUserConfig *user_config, const LdnNetworkConfig *network_config, const LdnAddressEntry *addrs, s32 count);
/**
* @brief DestroyNetwork
* @note \ref LdnState must be ::LdnState_AccessPointCreated, this eventually sets the State to ::LdnState_AccessPoint.
*/
Result ldnDestroyNetwork(void);
/**
* @brief Reject
* @note \ref LdnState must be ::LdnState_AccessPointCreated.
* @param[in] addr \ref LdnIpv4Address
*/
Result ldnReject(LdnIpv4Address addr);
/**
* @brief SetAdvertiseData
* @note An empty buffer (buffer=NULL/size=0) can be used to reset the AdvertiseData size in state to zero.
* @note \ref LdnState must be ::LdnState_AccessPoint or ::LdnState_AccessPointCreated.
* @param[in] buffer Input buffer containing arbitrary user data.
* @param[in] size Input buffer size, must be <=0x180.
*/
Result ldnSetAdvertiseData(const void* buffer, size_t size);
/**
* @brief SetStationAcceptPolicy
* @note \ref LdnState must be ::LdnState_AccessPoint or ::LdnState_AccessPointCreated.
* @param[in] policy \ref LdnAcceptPolicy
*/
Result ldnSetStationAcceptPolicy(LdnAcceptPolicy policy);
/**
* @brief AddAcceptFilterEntry
* @note \ref LdnState must be ::LdnState_AccessPoint or ::LdnState_AccessPointCreated.
* @note See \ref LdnAcceptPolicy.
* @param[in] addr \ref LdnMacAddress. If you want, you can also pass LdnNodeInfo::mac_addr for this.
*/
Result ldnAddAcceptFilterEntry(LdnMacAddress addr);
/**
* @brief ClearAcceptFilter
* @note \ref LdnState must be ::LdnState_AccessPoint or ::LdnState_AccessPointCreated.
*/
Result ldnClearAcceptFilter(void);
/**
* @brief OpenStation
* @note \ref LdnState must be ::LdnState_Initialized, this eventually sets the State to ::LdnState_Station.
*/
Result ldnOpenStation(void);
/**
* @brief CloseStation
* @note \ref LdnState must be ::LdnState_Station or ::LdnState_StationConnected, this eventually sets the State to ::LdnState_Initialized.
* @note Used automatically internally by \ref ldnExit if needed.
*/
Result ldnCloseStation(void);
/**
* @brief Connect
* @note \ref LdnState must be ::LdnState_Station, this eventually sets the State to ::LdnState_StationConnected.
* @note This is identical to \ref ldnConnectPrivate besides the used params, the code overwriting LdnSecurityConfig::type also differs.
* @param[in] sec_config \ref LdnSecurityConfig
* @param[in] user_config \ref LdnUserConfig
* @param[in] version LocalCommunicationVersion, this must be 0x0-0x7FFF.
* @param[in] option ConnectOption bitmask, must be <=0x1. You can use value 0 for example here.
* @param[in] network_info \ref LdnNetworkInfo
*/
Result ldnConnect(const LdnSecurityConfig *sec_config, const LdnUserConfig *user_config, s32 version, u32 option, const LdnNetworkInfo *network_info);
/**
* @brief ConnectPrivate
* @note \ref LdnState must be ::LdnState_Station, this eventually sets the State to ::LdnState_StationConnected.
* @note See \ref ldnConnect.
* @param[in] sec_config \ref LdnSecurityConfig
* @param[in] sec_param \ref LdnSecurityParameter
* @param[in] user_config \ref LdnUserConfig
* @param[in] version LocalCommunicationVersion, this must be 0x0-0x7FFF.
* @param[in] option ConnectOption bitmask, must be <=0x1. You can use value 0 for example here.
* @param[in] network_config \ref LdnNetworkConfig
*/
Result ldnConnectPrivate(const LdnSecurityConfig *sec_config, const LdnSecurityParameter *sec_param, const LdnUserConfig *user_config, s32 version, u32 option, const LdnNetworkConfig *network_config);
/**
* @brief Disconnect
* @note \ref LdnState must be ::LdnState_StationConnected, this eventually sets the State to ::LdnState_Station.
*/
Result ldnDisconnect(void);
/**
* @brief SetOperationMode
* @note Only available on [4.0.0+].
* @note Only available with ::LdnServiceType_System.
* @note \ref LdnState must be ::LdnState_Initialized.
* @param[in] mode \ref LdnOperationMode
*/
Result ldnSetOperationMode(LdnOperationMode mode);
/**
* @brief EnableActionFrame
* @note Only available on [18.0.0+].
* @note \ref LdnState must be ::LdnState_Initialized.
* @param[in] settings \ref LdnActionFrameSettings
*/
Result ldnEnableActionFrame(const LdnActionFrameSettings *settings);
/**
* @brief DisableActionFrame
* @note Only available on [18.0.0+].
* @note \ref LdnState must be ::LdnState_Initialized.
*/
Result ldnDisableActionFrame(void);
/**
* @brief SendActionFrame
* @note Only available on [18.0.0+].
* @note \ref LdnState must be ::LdnState_AccessPointCreated / ::LdnState_Station.
* @param[in] data Data buffer.
* @param[in] size Data buffer size.
* @param[in] destination Destination \ref LdnMacAddress.
* @param[in] bssid Bssid \ref LdnMacAddress.
* @param[in] channel Channel, must be non-zero.
* @param[in] flags MessageFlag bit0 clear = block until the data can be sent, set = return error when the data can't be sent.
*/
Result ldnSendActionFrame(const void* data, size_t size, LdnMacAddress destination, LdnMacAddress bssid, s16 channel, u32 flags);
/**
* @brief RecvActionFrame
* @note Only available on [18.0.0+].
* @note \ref ldnEnableActionFrame must be used prior to this.
* @param[out] data Output data buffer.
* @param[in] size Max size of the data buffer.
* @param[out] addr0 First \ref LdnMacAddress.
* @param[out] addr1 Second \ref LdnMacAddress.
* @param[out] channel Channel
* @param[out] out_size Output size.
* @param[out] link_level LinkLevel
* @param[in] flags MessageFlag bit0 clear = block until data is available, set = return error when data is not available.
*/
Result ldnRecvActionFrame(void* data, size_t size, LdnMacAddress *addr0, LdnMacAddress *addr1, s16 *channel, u32 *out_size, s32 *link_level, u32 flags);
/**
* @brief SetHomeChannel
* @note Only available on [18.0.0+].
* @note \ref LdnState must be ::LdnState_Station.
* @param[in] channel Channel, must be non-zero.
*/
Result ldnSetHomeChannel(s16 channel);
/**
* @brief SetTxPower
* @note Only available on [18.0.0+].
* @note \ref LdnState must be ::LdnState_AccessPoint* / ::LdnState_Station*.
* @param[in] power Power, must be 0x0..0xFF.
*/
Result ldnSetTxPower(s16 power);
/**
* @brief ResetTxPower
* @note Only available on [18.0.0+].
* @note \ref LdnState must be ::LdnState_AccessPoint* / ::LdnState_Station*.
*/
Result ldnResetTxPower(void);
///@}