syntax = "proto2";

/**
 * Types for TREZOR communication
 *
 * @author	Marek Palatinus <slush@satoshilabs.com>
 * @version	1.2
 */

// Sugar for easier handling in Java
option java_package = "com.satoshilabs.trezor.lib.protobuf";
option java_outer_classname = "TrezorType";

import "google/protobuf/descriptor.proto";

/**
 * Options for specifying message direction and type of wire (normal/debug)
 */
extend google.protobuf.EnumValueOptions {
	optional bool wire_in = 50002;		// message can be transmitted via wire from PC to TREZOR
	optional bool wire_out = 50003;		// message can be transmitted via wire from TREZOR to PC
	optional bool wire_debug_in = 50004;	// message can be transmitted via debug wire from PC to TREZOR
	optional bool wire_debug_out = 50005;	// message can be transmitted via debug wire from TREZOR to PC
	optional bool wire_tiny = 50006;	// message is handled by TREZOR when the USB stack is in tiny mode
	optional bool wire_bootloader = 50007;  // message is only handled by TREZOR Bootloader
}

/**
 * Type of failures returned by Failure message
 * @used_in Failure
 */
enum FailureType {
	Failure_UnexpectedMessage = 1;
	Failure_ButtonExpected = 2;
	Failure_DataError = 3;
	Failure_ActionCancelled = 4;
	Failure_PinExpected = 5;
	Failure_PinCancelled = 6;
	Failure_PinInvalid = 7;
	Failure_InvalidSignature = 8;
	Failure_ProcessError = 9;
	Failure_NotEnoughFunds = 10;
	Failure_NotInitialized = 11;
	Failure_PinMismatch = 12;
	Failure_FirmwareError = 99;
}

/**
 * Type of script which will be used for transaction output
 * @used_in TxOutputType
 */
enum OutputScriptType {
	PAYTOADDRESS = 0;	// used for all addresses (bitcoin, p2sh, witness)
	PAYTOSCRIPTHASH = 1;	// p2sh address (deprecated; use PAYTOADDRESS)
	PAYTOMULTISIG = 2;	// only for change output
	PAYTOOPRETURN = 3;	// op_return
	PAYTOWITNESS = 4;	// only for change output
	PAYTOP2SHWITNESS = 5;	// only for change output
}

/**
 * Type of script which will be used for transaction output
 * @used_in TxInputType
 */
enum InputScriptType {
	SPENDADDRESS = 0;		// standard p2pkh address
	SPENDMULTISIG = 1;		// p2sh multisig address
	EXTERNAL = 2;			// reserved for external inputs (coinjoin)
	SPENDWITNESS = 3;		// native segwit
	SPENDP2SHWITNESS = 4;		// segwit over p2sh (backward compatible)
}

/**
 * Type of information required by transaction signing process
 * @used_in TxRequest
 */
enum RequestType {
	TXINPUT = 0;
	TXOUTPUT = 1;
	TXMETA = 2;
	TXFINISHED = 3;
	TXEXTRADATA = 4;
}

/**
 * Type of button request
 * @used_in ButtonRequest
 */
enum ButtonRequestType {
	ButtonRequest_Other = 1;
	ButtonRequest_FeeOverThreshold = 2;
	ButtonRequest_ConfirmOutput = 3;
	ButtonRequest_ResetDevice = 4;
	ButtonRequest_ConfirmWord = 5;
	ButtonRequest_WipeDevice = 6;
	ButtonRequest_ProtectCall = 7;
	ButtonRequest_SignTx = 8;
	ButtonRequest_FirmwareCheck = 9;
	ButtonRequest_Address = 10;
	ButtonRequest_PublicKey = 11;
	ButtonRequest_MnemonicWordCount = 12;
	ButtonRequest_MnemonicInput = 13;
	ButtonRequest_PassphraseType = 14;
}

/**
 * Type of PIN request
 * @used_in PinMatrixRequest
 */
enum PinMatrixRequestType {
	PinMatrixRequestType_Current = 1;
	PinMatrixRequestType_NewFirst = 2;
	PinMatrixRequestType_NewSecond = 3;
}

/**
 * Type of recovery procedure. These should be used as bitmask, e.g.,
 * `RecoveryDeviceType_ScrambledWords | RecoveryDeviceType_Matrix`
 * listing every method supported by the host computer.
 *
 * Note that ScrambledWords must be supported by every implementation
 * for backward compatibility; there is no way to not support it.
 *
 * @used_in RecoveryDevice
 */
enum RecoveryDeviceType {
	// use powers of two when extending this field
	RecoveryDeviceType_ScrambledWords = 0;		// words in scrambled order
	RecoveryDeviceType_Matrix = 1;				// matrix recovery type
}

/**
 * Type of Recovery Word request
 * @used_in WordRequest
 */
enum WordRequestType {
	WordRequestType_Plain = 0;
	WordRequestType_Matrix9 = 1;
	WordRequestType_Matrix6 = 2;
}

/**
 * Structure representing BIP32 (hierarchical deterministic) node
 * Used for imports of private key into the device and exporting public key out of device
 * @used_in PublicKey
 * @used_in LoadDevice
 * @used_in DebugLinkState
 * @used_in Storage
 */
message HDNodeType {
	required uint32 depth = 1;
	required uint32 fingerprint = 2;
	required uint32 child_num = 3;
	required bytes chain_code = 4;
	optional bytes private_key = 5;
	optional bytes public_key = 6;
}

message HDNodePathType {
	required HDNodeType node = 1;						// BIP-32 node in deserialized form
	repeated uint32 address_n = 2;						// BIP-32 path to derive the key from node
}

/**
 * Type of redeem script used in input
 * @used_in TxInputType
 */
message MultisigRedeemScriptType {
	repeated HDNodePathType pubkeys = 1;					// pubkeys from multisig address (sorted lexicographically)
	repeated bytes signatures = 2;						// existing signatures for partially signed input
	optional uint32 m = 3;							// "m" from n, how many valid signatures is necessary for spending
}

/**
 * Structure representing transaction input
 * @used_in SimpleSignTx
 * @used_in TransactionType
 */
message TxInputType {
	repeated uint32 address_n = 1;						// BIP-32 path to derive the key from master node
	required bytes prev_hash = 2;						// hash of previous transaction output to spend by this input
	required uint32 prev_index = 3;						// index of previous output to spend
	optional bytes script_sig = 4;						// script signature, unset for tx to sign
	optional uint32 sequence = 5 [default=4294967295];			// sequence (default=0xffffffff)
	optional InputScriptType script_type = 6 [default=SPENDADDRESS];	// defines template of input script
	optional MultisigRedeemScriptType multisig = 7;				// Filled if input is going to spend multisig tx
	optional uint64 amount = 8;						// amount of previous transaction output (for segwit only)
	optional uint32 decred_tree = 9;
	optional uint32 decred_script_version = 10;
	optional bytes prev_block_hash_bip115 = 11;				// block hash of previous transaction output (for bip115 implementation)
	optional bytes prev_block_height_bip115 = 12;				// block height of previous transaction output (for bip115 implementation)
}

/**
 * Structure representing transaction output
 * @used_in SimpleSignTx
 * @used_in TransactionType
 */
message TxOutputType {
	optional string address = 1;			// target coin address in Base58 encoding
	repeated uint32 address_n = 2;			// BIP-32 path to derive the key from master node; has higher priority than "address"
	required uint64 amount = 3;			// amount to spend in satoshis
	required OutputScriptType script_type = 4;	// output script type
	optional MultisigRedeemScriptType multisig = 5; // defines multisig address; script_type must be PAYTOMULTISIG
	optional bytes op_return_data = 6;		// defines op_return data; script_type must be PAYTOOPRETURN, amount must be 0
	optional uint32 decred_script_version = 7;
	optional bytes block_hash_bip115 = 8;		// block hash of existing block (recommended current_block - 300) (for bip115 implementation)
	optional bytes block_height_bip115 = 9;		// block height of existing block (recommended current_block - 300) (for bip115 implementation)
}

/**
 * Structure representing compiled transaction output
 * @used_in TransactionType
 */
message TxOutputBinType {
	required uint64 amount = 1;
	required bytes script_pubkey = 2;
	optional uint32 decred_script_version = 3;
}

/**
 * Structure representing transaction
 * @used_in TxAck
 */
message TransactionType {
	optional uint32 version = 1;
	repeated TxInputType inputs = 2;
	repeated TxOutputBinType bin_outputs = 3;
	repeated TxOutputType outputs = 5;
	optional uint32 lock_time = 4;
	optional uint32 inputs_cnt = 6;
	optional uint32 outputs_cnt = 7;
	optional bytes extra_data = 8;			// only for Zcash
	optional uint32 extra_data_len = 9;		// only for Zcash
	optional uint32 expiry = 10;			// only for Decred and Zcash
	optional bool overwintered = 11;		// only for Zcash
}

/**
 * Structure representing request details
 * @used_in TxRequest
 */
message TxRequestDetailsType {
	optional uint32 request_index = 1;	// device expects TxAck message from the computer
	optional bytes tx_hash = 2;		// tx_hash of requested transaction
	optional uint32 extra_data_len = 3;	// length of requested extra data
	optional uint32 extra_data_offset = 4;	// offset of requested extra data
}

/**
 * Structure representing serialized data
 * @used_in TxRequest
 */
message TxRequestSerializedType {
	optional uint32 signature_index = 1;	// 'signature' field contains signed input of this index
	optional bytes signature = 2;		// signature of the signature_index input
	optional bytes serialized_tx = 3;	// part of serialized and signed transaction
}

/**
 * Structure representing identity data
 * @used_in IdentityType
 */
message IdentityType {
	optional string proto = 1;			// proto part of URI
	optional string user = 2;			// user part of URI
	optional string host = 3;			// host part of URI
	optional string port = 4;			// port part of URI
	optional string path = 5;			// path part of URI
	optional uint32 index = 6 [default=0];		// identity index
}

/**
 * Structure representing passphrase source
 * @used_in ApplySettings
 */
enum PassphraseSourceType {
	ASK = 0;
	DEVICE = 1;
	HOST = 2;
}

/**
 * Structure representing the common part for NEM transactions
 * @used_in NEMSignTx
 */
message NEMTransactionCommon {
	repeated uint32 address_n = 1;			// BIP-32 path to derive the key from master node
	optional uint32 network = 2;			// Network ID (0x68 = Mainnet, 0x98 = Testnet, 0x60 = Mijin)
	optional uint32 timestamp = 3;			// Number of seconds elapsed since the creation of the nemesis block
	optional uint64 fee = 4;			// Fee for the transaction
	optional uint32 deadline = 5;			// Deadline of the transaction
	optional bytes signer = 6;			// Public key of the account (for multisig transactions)
}

/**
 * Structure representing the transfer transaction part for NEM transactions
 * @used_in NEMSignTx
 */
message NEMTransfer {
	optional string recipient = 1;			// Address of the recipient
	optional uint64 amount = 2;			// Amount of micro NEM that is transferred
	optional bytes payload = 3;			// Actual message data (unencrypted)
	optional bytes public_key = 4;			// Public key of the recipient (for encrypted payloads)
	repeated NEMMosaic mosaics = 5;			// Attached mosaics
}

/**
 * Structure representing the mosaic attachment for NEM transfer transactions
 * @used_in NEMTransfer
 */
message NEMMosaic {
	optional string namespace = 1;			// Fully qualified name of the namespace
	optional string mosaic = 2;			// Name of the mosaic definition
	optional uint64 quantity = 3;			// Mosaic quantity, always given in smallest units
}

/**
 * Structure representing the provision namespace part for NEM transactions
 * @used_in NEMSignTx
 */
message NEMProvisionNamespace {
	optional string namespace = 1;			// New part concatenated to the parent
	optional string parent = 2;			// Parent namespace (for child namespaces)
	optional string sink = 3;			// Rental fee sink address
	optional uint64 fee = 4;			// Rental fee
}

/**
 * Type of levy which will be used for mosaic
 * @used_in NEMMosaicDefinition
 */
enum NEMMosaicLevy {
	MosaicLevy_Absolute = 1;
	MosaicLevy_Percentile = 2;
}

/**
 * Structure representing the mosaic definition creation part for NEM transactions
 * @used_in NEMSignTx
 */
message NEMMosaicCreation {
	optional NEMMosaicDefinition definition = 1;	// Mosaic definition
	optional string sink = 2;			// Creation fee sink address
	optional uint64 fee = 3;			// Creation fee
}

/**
 * Structure representing a mosaic definition
 * @used_in NEMMosaicCreation
 */
message NEMMosaicDefinition {
	optional string name = 1;			// User-friendly name of the mosaic (for whitelisted mosaics)
	optional string ticker = 2;			// Ticker of the mosaic (for whitelisted mosaics)
	optional string namespace = 3;			// Fully qualified name of the namespace
	optional string mosaic = 4;			// Name of the mosaic definition
	optional uint32 divisibility = 5;		// Number of decimal places that a mosaic can be divided into
	optional NEMMosaicLevy levy = 6;		// Levy type
	optional uint64 fee = 7;			// Levy fee (interpretation depends on levy type)
	optional string levy_address = 8;		// Levy address
	optional string levy_namespace = 9;		// Fully qualified name of the namespace of the levy mosaic
	optional string levy_mosaic = 10;		// Name of the levy mosaic
	optional uint64 supply = 11;			// Initial supply to create, always given in entire units
	optional bool mutable_supply = 12;		// Mutable supply
	optional bool transferable = 13;		// Mosaic allows transfers among accounts other than the creator
	optional string description = 14;		// Mosaic description
	repeated uint32 networks = 15;			// Networks that the mosaic is valid on (for whitelisted mosaics)
}

/**
 * Structure representing the mosaic supply change part for NEM transactions
 * @used_in NEMSignTx
 */
message NEMMosaicSupplyChange {
	optional string namespace = 1;			// Fully qualified name of the namespace
	optional string mosaic = 2;			// Name of the mosaic definition
	optional NEMSupplyChangeType type = 3;		// Type of supply change
	optional uint64 delta = 4;			// Supply delta
}

/**
 * Type of supply change which will be applied to mosaic
 * @used_in NEMMosaicSupplyChange
 */
enum NEMSupplyChangeType {
	SupplyChange_Increase = 1;
	SupplyChange_Decrease = 2;
}

/**
 * Structure representing the aggregate modification part for NEM transactions
 * @used_in NEMSignTx
 */
message NEMAggregateModification {
	repeated NEMCosignatoryModification modifications = 1;	// Cosignatory modifications
	optional sint32 relative_change = 2;			// Relative change of the minimum cosignatories
}

/**
 * Structure representing the cosignatory modification for aggregate modification transactions
 * @used_in NEMAggregateMdofiication
 */
message NEMCosignatoryModification {
	optional NEMModificationType type = 1;		// Type of cosignatory modification
	optional bytes public_key = 2;			// Public key of the cosignatory
}

/**
 * Type of cosignatory modification
 * @used_in NEMCosignatoryModification
 */
enum NEMModificationType {
	CosignatoryModification_Add = 1;
	CosignatoryModification_Delete = 2;
}

/**
 * Structure representing the importance transfer part for NEM transactions
 * @used_in NEMSignTx
 */
message NEMImportanceTransfer {
	optional NEMImportanceTransferMode mode = 1;	// Mode of importance transfer
	optional bytes public_key = 2;			// Public key of the remote account
}

/**
 * Mode of importance transfer
 * @used_in NEMModificationType
 */
enum NEMImportanceTransferMode {
	ImportanceTransfer_Activate = 1;
	ImportanceTransfer_Deactivate = 2;
}

/**
 * Describes a Stellar asset
 * @used_in StellarTxOpAck
 */
message StellarAssetType {
	optional uint32 type = 1;	// 0 = native asset (XLM), 1 = alphanum 4, 2 = alphanum 12
	optional string code = 2;	// for non-native assets, string describing the code
	optional string issuer = 3;	// issuing address
}

/**
* Type of Lisk transaction
* @used_in LiskTransactionCommon
*/
enum LiskTransactionType {
	Transfer = 0;
	RegisterSecondPassphrase = 1;
	RegisterDelegate = 2;
	CastVotes = 3;
	RegisterMultisignatureAccount = 4;
	CreateDapp = 5;
	TransferIntoDapp = 6;
	TransferOutOfDapp = 7;
}

/**
* Structure representing the common part for Lisk transactions
* @used_in LiskSignTx
*/
message LiskTransactionCommon {
	optional LiskTransactionType type = 1;
	optional uint64 amount = 2 [default=0];
	optional uint64 fee = 3;
	optional string recipient_id = 4;
	optional bytes sender_public_key = 5;
	optional bytes requester_public_key = 6;
	optional bytes signature = 7;
	optional uint32 timestamp = 8;
	optional LiskTransactionAsset asset = 9;
}

/**
* Structure representing the asset field in the Lisk transaction
* @used_in LiskTransactionCommon
*/
message LiskTransactionAsset {
	optional LiskSignatureType signature = 1;
	optional LiskDelegateType delegate = 2;
	repeated string votes = 3;
	optional LiskMultisignatureType multisignature = 4;
	optional string data = 5;
}

/**
* Structure representing the signature field in the Lisk transaction asset field
* @used_in LiskTransactionAsset
*/
message LiskSignatureType {
	optional bytes public_key = 1;
}

/**
* Structure representing the delegate field in the Lisk transaction asset field
* @used_in LiskTransactionAsset
*/
message LiskDelegateType {
	optional string username  = 1;
}

/**
* Structure representing the multisignature field in the Lisk transaction asset field
* @used_in LiskTransactionAsset
*/
message LiskMultisignatureType {
	optional uint32 min = 1;
	optional uint32 life_time = 2;
	repeated string keys_group = 3;
}