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trezor-firmware/common/protob/messages-ethereum-eip712.proto
2021-12-19 20:36:30 +01:00

90 lines
3.0 KiB
Protocol Buffer

syntax = "proto2";
package hw.trezor.messages.ethereum_eip712;
// Sugar for easier handling in Java
option java_package = "com.satoshilabs.trezor.lib.protobuf";
option java_outer_classname = "TrezorMessageEthereumEIP712";
// Separated from messages-ethereum.proto as it is not implemented on T1 side
// and defining all the messages and fields could be even impossible as recursive
// messages are used here
/**
* Request: Ask device to sign typed data
* @start
* @next EthereumTypedDataStructRequest
* @next EthereumTypedDataValueRequest
* @next EthereumTypedDataSignature
* @next Failure
*/
message EthereumSignTypedData {
repeated uint32 address_n = 1; // BIP-32 path to derive the key from master node
required string primary_type = 2; // name of the root message struct
optional bool metamask_v4_compat = 3 [default=true]; // use MetaMask v4 (see https://github.com/MetaMask/eth-sig-util/issues/106)
}
/**
* Response: Device asks for type information about a struct.
* @next EthereumTypedDataStructAck
*/
message EthereumTypedDataStructRequest {
required string name = 1; // name of the requested struct
}
/**
* Request: Type information about a struct.
* @next EthereumTypedDataStructRequest
*/
message EthereumTypedDataStructAck {
repeated EthereumStructMember members = 1;
message EthereumStructMember {
required EthereumFieldType type = 1;
required string name = 2;
}
message EthereumFieldType {
required EthereumDataType data_type = 1;
optional uint32 size = 2; // for integer types: size in bytes (uint8 has size 1, uint256 has size 32)
// for bytes types: size in bytes, or unset for dynamic
// for arrays: size in elements, or unset for dynamic
// for structs: number of members
// for string, bool and address: unset
optional EthereumFieldType entry_type = 3; // for array types, type of single entry
optional string struct_name = 4; // for structs: its name
}
enum EthereumDataType {
UINT = 1;
INT = 2;
BYTES = 3;
STRING = 4;
BOOL = 5;
ADDRESS = 6;
ARRAY = 7;
STRUCT = 8;
}
}
/**
* Response: Device asks for data at the specific member path.
* @next EthereumTypedDataValueAck
*/
message EthereumTypedDataValueRequest {
repeated uint32 member_path = 1; // member path requested by device
}
/**
* Request: Single value of a specific atomic field.
* @next EthereumTypedDataValueRequest
*/
message EthereumTypedDataValueAck {
required bytes value = 1;
// * atomic types: value of the member.
// Length must match the `size` of the corresponding field type, unless the size is dynamic.
// * array types: number of elements, encoded as uint16.
// * struct types: undefined, Trezor will not query a struct field.
}