79 lines
2.9 KiB
C
79 lines
2.9 KiB
C
/*
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* Copyright (C) 2016 The Android Open Source Project
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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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#ifndef TRUSTY_RPMB_H_
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#define TRUSTY_RPMB_H_
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#include <trusty/sysdeps.h>
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#include <trusty/trusty_ipc.h>
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#define MMC_BLOCK_SIZE 512
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/*
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* Initialize RPMB storage proxy. Returns one of trusty_err.
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*
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* @dev: initialized with trusty_ipc_dev_create
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* @rpmb_dev: Context of RPMB device, initialized with rpmb_storage_get_ctx
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*/
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int rpmb_storage_proxy_init(struct trusty_ipc_dev *dev, void *rpmb_dev);
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/*
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* Shutdown RPMB storage proxy
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*
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* @dev: initialized with trusty_ipc_dev_create
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*/
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void rpmb_storage_proxy_shutdown(struct trusty_ipc_dev *dev);
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/*
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* Execute RPMB command. Implementation is platform specific.
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* Returns one of trusty_err.
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*
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* @rpmb_dev: Context of RPMB device, initialized with
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* rpmb_storage_get_ctx
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* @reliable_write_data: Buffer containing RPMB structs for reliable write
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* @reliable_write_size: Size of reliable_write_data
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* @write_data: Buffer containing RPMB structs for write
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* @write_size: Size of write_data
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* @read_data: Buffer to be filled with RPMB structs read from RPMB
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* partition
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* @read_size: Size of read_data
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*/
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int rpmb_storage_send(void *rpmb_dev,
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const void *reliable_write_data,
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size_t reliable_write_size,
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const void *write_data, size_t write_size,
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void *read_buf, size_t read_size);
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/*
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* Return context for RPMB device. This is called when the RPMB storage proxy is
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* initialized, and subsequently used when issuing RPMB storage requests.
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* Implementation is platform specific.
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*/
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void *rpmb_storage_get_ctx(void);
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/*
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* Put back RPMB device. This is called when the RPMB storage proxy is
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* shutdown
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*/
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void rpmb_storage_put_ctx(void *dev);
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#endif /* TRUSTY_RPMB_H_ */
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