blob: 48fa53d1532bbe27072ca2401d6182b2e7031c5b [file] [log] [blame]
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#define KEYMASTER_PORT "com.android.trusty.keymaster"
#define KEYMASTER_MAX_BUFFER_LENGTH 4096
// Commands
enum keymaster_command {
KEYMASTER_RESP_BIT = 1,
KEYMASTER_REQ_SHIFT = 1,
KM_GENERATE_KEY = (0 << KEYMASTER_REQ_SHIFT),
KM_BEGIN_OPERATION = (1 << KEYMASTER_REQ_SHIFT),
KM_UPDATE_OPERATION = (2 << KEYMASTER_REQ_SHIFT),
KM_FINISH_OPERATION = (3 << KEYMASTER_REQ_SHIFT),
KM_ABORT_OPERATION = (4 << KEYMASTER_REQ_SHIFT),
KM_IMPORT_KEY = (5 << KEYMASTER_REQ_SHIFT),
KM_EXPORT_KEY = (6 << KEYMASTER_REQ_SHIFT),
KM_GET_VERSION = (7 << KEYMASTER_REQ_SHIFT),
KM_ADD_RNG_ENTROPY = (8 << KEYMASTER_REQ_SHIFT),
KM_GET_SUPPORTED_ALGORITHMS = (9 << KEYMASTER_REQ_SHIFT),
KM_GET_SUPPORTED_BLOCK_MODES = (10 << KEYMASTER_REQ_SHIFT),
KM_GET_SUPPORTED_PADDING_MODES = (11 << KEYMASTER_REQ_SHIFT),
KM_GET_SUPPORTED_DIGESTS = (12 << KEYMASTER_REQ_SHIFT),
KM_GET_SUPPORTED_IMPORT_FORMATS = (13 << KEYMASTER_REQ_SHIFT),
KM_GET_SUPPORTED_EXPORT_FORMATS = (14 << KEYMASTER_REQ_SHIFT),
KM_GET_KEY_CHARACTERISTICS = (15 << KEYMASTER_REQ_SHIFT),
};
#ifdef __ANDROID__
/**
* keymaster_message - Serial header for communicating with KM server
* @cmd: the command, one of keymaster_command.
* @payload: start of the serialized command specific payload
*/
struct keymaster_message {
uint32_t cmd;
uint8_t payload[0];
};
#endif