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467 lines
22 KiB
C
467 lines
22 KiB
C
/**
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* @file ldn.h
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* @brief LDN (local network communications) IPC wrapper. See also: https://switchbrew.org/wiki/LDN_services
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* @author yellows8
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* @copyright libnx Authors
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*/
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#pragma once
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#include "../types.h"
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#include "../sf/service.h"
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#include "../kernel/event.h"
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typedef enum {
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LdnServiceType_User = 0, ///< Initializes ldn:u.
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LdnServiceType_System = 1, ///< Initializes ldn:s.
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} LdnServiceType;
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/// State loaded by \ref ldnmGetStateForMonitor / \ref ldnGetState.
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typedef enum {
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LdnState_None = 0, ///< None
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LdnState_Initialized = 1, ///< Initialized
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LdnState_AccessPointOpened = 2, ///< AccessPointOpened (\ref ldnOpenAccessPoint)
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LdnState_AccessPointCreated = 3, ///< AccessPointCreated (\ref ldnCreateNetwork / \ref ldnCreateNetworkPrivate)
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LdnState_StationOpened = 4, ///< StationOpened (\ref ldnOpenStation)
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LdnState_StationConnected = 5, ///< StationConnected (\ref ldnConnect / \ref ldnConnectPrivate)
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LdnState_Error = 6, ///< Error
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} LdnState;
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/// DisconnectReason loaded by \ref ldnGetDisconnectReason.
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typedef enum {
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LdnDisconnectReason_None = 0, ///< None
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LdnDisconnectReason_User = 1, ///< User
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LdnDisconnectReason_SystemRequest = 2, ///< SystemRequest
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LdnDisconnectReason_DestroyedByAdmin = 3, ///< DestroyedByAdmin
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LdnDisconnectReason_DestroyedBySystemRequest = 4, ///< DestroyedBySystemRequest
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LdnDisconnectReason_Admin = 5, ///< Admin
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LdnDisconnectReason_SignalLost = 6, ///< SignalLost
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} LdnDisconnectReason;
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/// ScanFilterFlags
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typedef enum {
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LdnScanFilterFlags_LocalCommunicationId = BIT(0), ///< When set, enables using LdnScanFilter::local_communication_id.
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LdnScanFilterFlags_NetworkId = BIT(1), ///< When set, enables using LdnScanFilter::network_id.
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LdnScanFilterFlags_Unknown2 = BIT(2), ///< When set, enables using LdnScanFilter::unk_x20.
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LdnScanFilterFlags_MacAddr = BIT(3), ///< When set, enables using LdnScanFilter::mac_addr. Only available with \ref ldnScanPrivate.
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LdnScanFilterFlags_Ssid = BIT(4), ///< When set, enables using the LdnScanFilter::ssid.
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LdnScanFilterFlags_UserData = BIT(5), ///< When set, enables using LdnScanFilter::userdata_filter.
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} LdnScanFilterFlags;
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/// AcceptPolicy
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typedef enum {
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LdnAcceptPolicy_AllowAll = 0, ///< Allow all.
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LdnAcceptPolicy_DenyAll = 1, ///< Deny all.
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LdnAcceptPolicy_Blacklist = 2, ///< Blacklist, addresses in the list (\ref ldnAddAcceptFilterEntry) are not allowed.
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LdnAcceptPolicy_Whitelist = 3, ///< Whitelist, only addresses in the list (\ref ldnAddAcceptFilterEntry) are allowed.
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} LdnAcceptPolicy;
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/// OperationMode
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typedef enum {
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LdnOperationMode_Unknown0 = 0, ///< Unknown
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LdnOperationMode_Unknown1 = 1, ///< Unknown
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} LdnOperationMode;
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/// WirelessControllerRestriction
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typedef enum {
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LdnWirelessControllerRestriction_Unknown0 = 0, ///< Unknown
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LdnWirelessControllerRestriction_Unknown1 = 1, ///< Unknown
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} LdnWirelessControllerRestriction;
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/// Ipv4Address. This is essentially the same as struct in_addr - hence this can be used with standard sockets (byteswap required).
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typedef struct {
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u32 addr; ///< Address
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} LdnIpv4Address;
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/// SubnetMask. This is essentially the same as struct in_addr - hence this can be used with standard sockets (byteswap required).
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typedef struct {
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u32 mask; ///< Mask
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} LdnSubnetMask;
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/// MacAddress
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typedef struct {
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u8 addr[6]; ///< Address
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} LdnMacAddress;
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/// Ssid
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typedef struct {
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u8 len; ///< Length excluding NUL-terminator, must be 0x1-0x20.
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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).
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} LdnSsid;
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/// NodeLatestUpdate
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typedef struct {
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u8 val; ///< The field in state is reset to zero by \ref ldnGetNetworkInfoLatestUpdate after loading it.
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u8 reserved[0x7]; ///< Not initialized with \ref ldnGetNetworkInfoLatestUpdate.
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} LdnNodeLatestUpdate;
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/// AddressEntry
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typedef struct {
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LdnIpv4Address ip_addr; ///< \ref LdnIpv4Address
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LdnMacAddress mac_addr; ///< \ref LdnMacAddress
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u8 pad[0x2]; ///< Padding
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} LdnAddressEntry;
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/// NodeInfo
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typedef struct {
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LdnIpv4Address ip_addr; ///< \ref LdnIpv4Address
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LdnMacAddress mac_addr; ///< \ref LdnMacAddress
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s8 id; ///< ID / index
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u8 is_connected; ///< IsConnected flag
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char nickname[0x20]; ///< LdnUserConfig::nickname
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u8 reserved_x2C[0x2]; ///< Reserved
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s16 local_communication_version; ///< LocalCommunicationVersion
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u8 reserved_x30[0x10]; ///< Reserved
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} LdnNodeInfo;
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/// UserConfig. The input struct is copied to a tmp struct, which is then used with the cmd.
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typedef struct {
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char nickname[0x20]; ///< NUL-terminated string for the user nickname.
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u8 reserved[0x10]; ///< Cleared to zero for the tmp struct.
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} LdnUserConfig;
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/// NetworkInfo
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typedef struct {
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u64 local_communication_id; ///< LocalCommunicationId
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u8 reserved_x8[0x2]; ///< Reserved
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u16 userdata_filter; ///< Arbitrary user data which can be used for filtering with \ref LdnScanFilter.
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u8 reserved_xC[0x4]; ///< Reserved
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u8 network_id[0x10]; ///< LdnSecurityParameter::network_id. NetworkId which is used to generate/overwrite the ssid. With \ref ldnScan / \ref ldnScanPrivate, this is only done after filtering when unk_x4B is value 0x2.
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LdnMacAddress mac_addr; ///< \ref LdnMacAddress
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LdnSsid ssid; ///< \ref LdnSsid
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s16 network_channel; ///< NetworkChannel
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s8 link_level; ///< LinkLevel
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u8 unk_x4B; ///< Unknown. Set to hard-coded value 0x2 with output structs, except with \ref ldnScan / \ref ldnScanPrivate which can also set value 0x1 in certain cases.
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u8 pad_x4C[0x4]; ///< Padding
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u8 sec_param_data[0x10]; ///< LdnSecurityParameter::data
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u16 sec_type; ///< LdnSecurityConfig::type
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u8 accept_policy; ///< \ref LdnAcceptPolicy
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u8 unk_x63; ///< Only set with \ref ldnScan / \ref ldnScanPrivate, when unk_x4B is value 0x2.
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u8 pad_x64[0x2]; ///< Padding
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s8 participant_max; ///< Maximum participants, for nodes.
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u8 participant_num; ///< ParticipantNum, number of set entries in nodes. If unk_x4B is not 0x2, ParticipantNum should be handled as if it's 0.
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LdnNodeInfo nodes[8]; ///< Array of \ref LdnNodeInfo, starting with the AccessPoint node.
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u8 reserved_x268[0x2]; ///< Reserved
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u16 advertise_data_size; ///< AdvertiseData size (\ref ldnSetAdvertiseData)
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u8 advertise_data[0x180]; ///< AdvertiseData (\ref ldnSetAdvertiseData)
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u8 reserved_x3EC[0x8C]; ///< Reserved
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u64 unk_x478; ///< Unknown
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} LdnNetworkInfo;
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/// ScanFilter. The input struct is copied to a tmp struct, which is then used with the cmd (\ref ldnScan and \ref ldnScanPrivate).
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typedef struct {
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s64 local_communication_id; ///< See ::LdnScanFilterFlags_LocalCommunicationId. When enabled, this will be overwritten if it's -1 (written data is from the user-process control.nacp, with value 0 used instead if loading fails). During filtering if enabled, LdnNetworkInfo::unk_x4B must match 0x2, and this ScanFilter field must match LdnNetworkInfo::local_communication_id.
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u8 pad_x8[0x2]; ///< Padding
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u16 userdata_filter; ///< See ::LdnScanFilterFlags_UserData. During filtering if enabled, LdnNetworkInfo::unk_x4B must match 0x2, and this ScanFilter field must match LdnNetworkInfo::userdata_filter.
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u8 pad_xC[0x4]; ///< Padding
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u8 network_id[0x10]; ///< See ::LdnScanFilterFlags_NetworkId. During filtering if enabled, LdnNetworkInfo::unk_x4B must match 0x2, and this ScanFilter data must match LdnNetworkInfo::network_id.
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u32 unk_x20; ///< See ::LdnScanFilterFlags_Unknown2. When enabled, this must be <=0x3, and during filtering must match LdnNetworkInfo::unk_x4B.
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LdnMacAddress mac_addr; ///< \ref LdnMacAddress (::LdnScanFilterFlags_MacAddr, during filtering if enabled this must match LdnNetworkInfo::mac_addr)
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LdnSsid ssid; ///< \ref LdnSsid (::LdnScanFilterFlags_Ssid, during filtering if enabled this must match LdnNetworkInfo::ssid)
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u8 reserved[0x10]; ///< Cleared to zero for the tmp struct.
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u32 flags; ///< Bitmask for \ref LdnScanFilterFlags. Masked with value 0x37 for \ref ldnScan, with \ref ldnScanPrivate this is masked with 0x3F.
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} LdnScanFilter;
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/// SecurityConfig
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typedef struct {
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u16 type; ///< Type, a default of value 0x1 can be used here. Overwritten by \ref ldnCreateNetwork, \ref ldnCreateNetworkPrivate, \ref ldnConnect, \ref ldnConnectPrivate.
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u16 data_size; ///< Data size. Must be 0x10-0x40.
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u8 data[0x40]; ///< Data, used with key derivation.
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} LdnSecurityConfig;
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/// SecurityParameter. The struct used by \ref ldnCreateNetwork internally is randomly-generated.
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typedef struct {
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u8 data[0x10]; ///< Data, used with the same key derivation as \ref LdnSecurityConfig.
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u8 network_id[0x10]; ///< LdnNetworkInfo::network_id
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} LdnSecurityParameter;
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/// NetworkConfig. The input struct is copied to a tmp struct, which is then used with the cmd (\ref ldnCreateNetwork, \ref ldnCreateNetworkPrivate, \ref ldnConnectPrivate).
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typedef struct {
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s64 local_communication_id; ///< LdnNetworkInfo::local_communication_id. \ref ldnCreateNetwork, \ref ldnCreateNetworkPrivate, \ref ldnConnect, \ref ldnConnectPrivate: When -1, this is overwritten with the first LocalCommunicationId from the user-process control.nacp, if loading fails value 0 is written instead. Otherwise when not -1, if control.nacp loading is successful, this field must match one of the LocalCommunicationIds from there.
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u8 reserved_x8[2]; ///< Cleared to zero for the tmp struct.
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u16 unk_xA; ///< LdnNetworkInfo::unk_xA
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u8 reserved_xC[4]; ///< Cleared to zero for the tmp struct.
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s16 network_channel; ///< LdnNetworkInfo::network_channel. Channel, can be zero. Overwritten internally by \ref ldnCreateNetwork.
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s8 participant_max; ///< LdnNetworkInfo::participant_max. \ref ldnCreateNetwork / \ref ldnCreateNetworkPrivate: Must be 0x1-0x8.
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u8 reserved_x13; ///< Cleared to zero for the tmp struct.
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s16 local_communication_version; ///< LdnNodeInfo::local_communication_version, for the first entry in LdnNetworkInfo::nodes. Must not be negative.
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u8 reserved_x16[0xA]; ///< Cleared to zero for the tmp struct.
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} LdnNetworkConfig;
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///@name ldn:m
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///@{
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/// Initialize ldn:m.
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Result ldnmInitialize(void);
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/// Exit ldn:m.
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void ldnmExit(void);
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/// Gets the Service object for IMonitorService.
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Service* ldnmGetServiceSession_MonitorService(void);
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/**
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* @brief GetStateForMonitor
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* @param[out] out \ref LdnState
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*/
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Result ldnmGetStateForMonitor(LdnState *out);
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/**
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* @brief GetNetworkInfoForMonitor
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* @param[out] out \ref LdnNetworkInfo
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*/
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Result ldnmGetNetworkInfoForMonitor(LdnNetworkInfo *out);
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/**
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* @brief GetIpv4AddressForMonitor
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* @param[out] addr \ref LdnIpv4Address
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* @param[out] mask \ref LdnSubnetMask
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*/
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Result ldnmGetIpv4AddressForMonitor(LdnIpv4Address *addr, LdnSubnetMask *mask);
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/**
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* @brief GetSecurityParameterForMonitor
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* @note Not exposed by official sw.
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* @param[out] out \ref LdnSecurityParameter
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*/
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Result ldnmGetSecurityParameterForMonitor(LdnSecurityParameter *out);
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/**
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* @brief GetNetworkConfigForMonitor
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* @note Not exposed by official sw.
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* @param[out] out \ref LdnNetworkConfig
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*/
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Result ldnmGetNetworkConfigForMonitor(LdnNetworkConfig *out);
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///@}
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///@name ldn
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///@{
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/// Initialize ldn.
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Result ldnInitialize(LdnServiceType service_type);
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/// Exit ldn.
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void ldnExit(void);
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/// Gets the Service object for IUserLocalCommunicationService/ISystemLocalCommunicationService.
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Service* ldnGetServiceSession_LocalCommunicationService(void);
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/**
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* @brief GetState
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* @param[out] out \ref LdnState
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*/
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Result ldnGetState(LdnState *out);
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/**
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* @brief GetNetworkInfo
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* @param[out] out \ref LdnNetworkInfo
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*/
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Result ldnGetNetworkInfo(LdnNetworkInfo *out);
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/**
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* @brief GetIpv4Address
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* @param[out] addr \ref LdnIpv4Address
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* @param[out] mask \ref LdnSubnetMask
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*/
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Result ldnGetIpv4Address(LdnIpv4Address *addr, LdnSubnetMask *mask);
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/**
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* @brief GetDisconnectReason
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* @param[out] out \ref LdnDisconnectReason
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*/
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Result ldnGetDisconnectReason(LdnDisconnectReason *out);
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/**
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* @brief GetSecurityParameter
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* @param[out] out \ref LdnSecurityParameter
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*/
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Result ldnGetSecurityParameter(LdnSecurityParameter *out);
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/**
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* @brief GetNetworkConfig
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* @param[out] out \ref LdnNetworkConfig
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*/
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Result ldnGetNetworkConfig(LdnNetworkConfig *out);
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/**
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* @brief AttachStateChangeEvent
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* @note The Event must be closed by the user once finished with it.
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* @note This is signaled when the data returned by \ref ldnGetNetworkInfo / \ref ldnGetNetworkInfoLatestUpdate is updated.
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* @param[out] out_event Output Event with autoclear=true.
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*/
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Result ldnAttachStateChangeEvent(Event* out_event);
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/**
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* @brief GetNetworkInfoLatestUpdate
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* @param[out] network_info \ref LdnNetworkInfo
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* @param[out] nodes Output array of \ref LdnNodeLatestUpdate.
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* @param[in] count Size of the nodes array in entries, must be 8.
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*/
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Result ldnGetNetworkInfoLatestUpdate(LdnNetworkInfo *network_info, LdnNodeLatestUpdate *nodes, s32 count);
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/**
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* @brief Scan
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* @note \ref LdnState must be ::LdnState_AccessPointCreated, ::LdnState_StationOpened, or ::LdnState_StationConnected.
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* @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.
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* @param[in] channel Channel, value 0 can be used for this.
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* @param[in] filter \ref LdnScanFilter
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* @param[out] network_info Output array of \ref LdnNetworkInfo.
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* @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.
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* @param[out] total_out Total output entries.
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*/
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Result ldnScan(s32 channel, const LdnScanFilter *filter, LdnNetworkInfo *network_info, s32 count, s32 *total_out);
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/**
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* @brief ScanPrivate
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* @note \ref LdnState must be ::LdnState_AccessPointCreated, ::LdnState_StationOpened, or ::LdnState_StationConnected.
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* @note See \ref ldnScan.
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* @param[in] channel Channel, value 0 can be used for this.
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* @param[in] filter \ref LdnScanFilter
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* @param[out] network_info Output array of \ref LdnNetworkInfo.
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* @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.
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* @param[out] total_out Total output entries.
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*/
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Result ldnScanPrivate(s32 channel, const LdnScanFilter *filter, LdnNetworkInfo *network_info, s32 count, s32 *total_out);
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/**
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* @brief SetWirelessControllerRestriction
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* @note Only available on [5.0.0+].
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* @note \ref LdnState must be ::LdnState_Initialized.
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* @param[in] restriction \ref LdnWirelessControllerRestriction
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*/
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Result ldnSetWirelessControllerRestriction(LdnWirelessControllerRestriction restriction);
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/**
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* @brief OpenAccessPoint
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* @note \ref LdnState must be ::LdnState_Initialized, this eventually sets the State to ::LdnState_AccessPointOpened.
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*/
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Result ldnOpenAccessPoint(void);
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/**
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* @brief CloseAccessPoint
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* @note \ref LdnState must be ::LdnState_AccessPointOpened or ::LdnState_AccessPointCreated, this eventually sets the State to ::LdnState_Initialized.
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* @note Used automatically internally by \ref ldnExit if needed.
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*/
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Result ldnCloseAccessPoint(void);
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/**
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* @brief CreateNetwork
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* @note \ref LdnState must be ::LdnState_AccessPointOpened, this eventually sets the State to ::LdnState_AccessPointCreated.
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* @param[in] sec_config \ref LdnSecurityConfig
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* @param[in] user_config \ref LdnUserConfig
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* @param[in] network_config \ref LdnNetworkConfig
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*/
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Result ldnCreateNetwork(const LdnSecurityConfig *sec_config, const LdnUserConfig *user_config, const LdnNetworkConfig *network_config);
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/**
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* @brief CreateNetworkPrivate
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* @note \ref LdnState must be ::LdnState_AccessPointOpened, this eventually sets the State to ::LdnState_AccessPointCreated.
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* @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).
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* @param[in] sec_config \ref LdnSecurityConfig
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* @param[in] sec_param \ref LdnSecurityParameter
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* @param[in] user_config \ref LdnUserConfig
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* @param[in] network_config \ref LdnNetworkConfig
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* @param[in] addrs Input array of \ref LdnAddressEntry. This can be NULL.
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* @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.
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*/
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Result ldnCreateNetworkPrivate(const LdnSecurityConfig *sec_config, const LdnSecurityParameter *sec_param, const LdnUserConfig *user_config, const LdnNetworkConfig *network_config, const LdnAddressEntry *addrs, s32 count);
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/**
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* @brief DestroyNetwork
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* @note \ref LdnState must be ::LdnState_AccessPointCreated, this eventually sets the State to ::LdnState_AccessPointOpened.
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*/
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Result ldnDestroyNetwork(void);
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/**
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* @brief Reject
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* @note \ref LdnState must be ::LdnState_AccessPointCreated.
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* @param[in] addr \ref LdnIpv4Address
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*/
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Result ldnReject(LdnIpv4Address addr);
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/**
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* @brief SetAdvertiseData
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* @note An empty buffer (buffer=NULL/size=0) can be used to reset the AdvertiseData size in state to zero.
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* @note \ref LdnState must be ::LdnState_AccessPointOpened or ::LdnState_AccessPointCreated.
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* @param[in] buffer Input buffer containing arbitrary user data.
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* @param[in] size Input buffer size, must be <=0x180. If this isn't enough space, you can for example also periodically use this cmd with different regions of your data with some sequence_number field (or use sockets while connected to the network).
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*/
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Result ldnSetAdvertiseData(const void* buffer, size_t size);
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/**
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* @brief SetStationAcceptPolicy
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* @note \ref LdnState must be ::LdnState_AccessPointOpened or ::LdnState_AccessPointCreated.
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* @param[in] policy \ref LdnAcceptPolicy
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*/
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Result ldnSetStationAcceptPolicy(LdnAcceptPolicy policy);
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/**
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* @brief AddAcceptFilterEntry
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* @note \ref LdnState must be ::LdnState_AccessPointOpened or ::LdnState_AccessPointCreated.
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* @note See \ref LdnAcceptPolicy.
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* @param[in] addr \ref LdnMacAddress. If you want, you can also pass LdnNodeInfo::mac_addr for this.
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*/
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Result ldnAddAcceptFilterEntry(LdnMacAddress addr);
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/**
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* @brief ClearAcceptFilter
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* @note \ref LdnState must be ::LdnState_AccessPointOpened or ::LdnState_AccessPointCreated.
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*/
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Result ldnClearAcceptFilter(void);
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/**
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* @brief OpenStation
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* @note \ref LdnState must be ::LdnState_Initialized, this eventually sets the State to ::LdnState_StationOpened.
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*/
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Result ldnOpenStation(void);
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/**
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* @brief CloseStation
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* @note \ref LdnState must be ::LdnState_StationOpened or ::LdnState_StationConnected, this eventually sets the State to ::LdnState_Initialized.
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* @note Used automatically internally by \ref ldnExit if needed.
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*/
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Result ldnCloseStation(void);
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/**
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* @brief Connect
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* @note \ref LdnState must be ::LdnState_StationOpened, this eventually sets the State to ::LdnState_StationConnected.
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* @note This is identical to \ref ldnConnectPrivate besides the used params, the code overwriting LdnSecurityConfig::type also differs.
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* @param[in] sec_config \ref LdnSecurityConfig
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* @param[in] user_config \ref LdnUserConfig
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* @param[in] version LocalCommunicationVersion, this must be 0x0-0x7FFF.
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* @param[in] option ConnectOption bitmask, must be <=0x1. You can use value 0 for example here.
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* @param[in] network_info \ref LdnNetworkInfo
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*/
|
|
Result ldnConnect(const LdnSecurityConfig *sec_config, const LdnUserConfig *user_config, s32 version, u32 option, const LdnNetworkInfo *network_info);
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|
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/**
|
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* @brief ConnectPrivate
|
|
* @note \ref LdnState must be ::LdnState_StationOpened, this eventually sets the State to ::LdnState_StationConnected.
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* @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);
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|
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/**
|
|
* @brief Disconnect
|
|
* @note \ref LdnState must be ::LdnState_StationConnected, this eventually sets the State to ::LdnState_StationOpened.
|
|
*/
|
|
Result ldnDisconnect(void);
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|
|
/**
|
|
* @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);
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|
|
///@}
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