109 lines
3.4 KiB
C
109 lines
3.4 KiB
C
/*
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* Copyright (C) 2016 The Android Open Source Project
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* Copyright NXP 2018
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifndef TRUSTY_INTERFACE_HWCRYPTO_H_
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#define TRUSTY_INTERFACE_HWCRYPTO_H_
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#include <trusty/sysdeps.h>
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#define HWCRYPTO_PORT "com.android.trusty.hwcrypto"
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#define HWCRYPTO_MAX_BUFFER_LENGTH 2048
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enum hwcrypto_command {
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HWCRYPTO_REQ_SHIFT = 1,
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HWCRYPTO_RESP_BIT = 1,
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HWCRYPTO_HASH = (1 << HWCRYPTO_REQ_SHIFT),
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HWCRYPTO_ENCAP_BLOB = (2 << HWCRYPTO_REQ_SHIFT),
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HWCRYPTO_GEN_RNG = (3 << HWCRYPTO_REQ_SHIFT),
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};
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/**
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* enum hwcrypto_error - error codes for HWCRYPTO protocol
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* @HWCRYPTO_ERROR_NONE: All OK
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* @HWCRYPTO_ERROR_INVALID: Invalid input
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* @HWCRYPTO_ERROR_INTERNAL: Error occurred during an operation in Trusty
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*/
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enum hwcrypto_error {
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HWCRYPTO_ERROR_NONE = 0,
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HWCRYPTO_ERROR_INVALID = 1,
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HWCRYPTO_ERROR_INTERNAL = 2,
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};
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enum hwcrypto_hash_algo {
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SHA1 = 0,
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SHA256
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};
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/**
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* hwcrypto_message - Serial header for communicating with hwcrypto server
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* @cmd: the command. Payload must be a serialized buffer of the
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* corresponding request object.
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* @result: resulting error code for message, one of hwcrypto_error.
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* @payload: start of the serialized command specific payload
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*/
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struct hwcrypto_message {
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uint32_t cmd;
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uint32_t result;
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uint8_t payload[0];
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};
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/**
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* hwcrypto_hash_msg - Serial header for communicating with hwcrypto server
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* @in_addr: start address of the input buf.
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* @in_len: size of the input buf.
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* @out_addr: start addrss of the output buf.
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* @out_len: size of the output buf.
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* @algo: hash algorithm expect to use.
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*/
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typedef struct hwcrypto_hash_msg {
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uint32_t in_addr;
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uint32_t in_len;
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uint32_t out_addr;
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uint32_t out_len;
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enum hwcrypto_hash_algo algo;
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} hwcrypto_hash_msg;
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/**
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* @plain_pa: physical start address of the plain blob buf.
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* @plain_size: size of the plain blob.
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* @blob: physical start addrss of the output buf.
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*/
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typedef struct hwcrypto_blob_msg {
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uint32_t plain_pa;
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uint32_t plain_size;
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uint32_t blob_pa;
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}hwcrypto_blob_msg;
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/**
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* @buf: physical start address of the output rng buf.
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* @len: size of required rng.
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*/
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typedef struct hwcrypto_rng_msg {
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uint32_t buf;
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uint32_t len;
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}hwcrypto_rng_msg;
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#endif /* TRUSTY_INTERFACE_HWCRYPTO_H_ */
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