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/*
* Copyright (c) 2016, Linaro Limited
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Interface with tee-supplicant for file operations
*/
#ifndef TEE_FS_RPC_H
#define TEE_FS_RPC_H
#include <stdbool.h>
#include <stddef.h>
#include <tee_api_types.h>
#include <tee/tee_fs.h>
#include <kernel/thread.h>
struct tee_fs_rpc_operation {
uint32_t id;
struct optee_msg_param params[THREAD_RPC_MAX_NUM_PARAMS];
size_t num_params;
};
TEE_Result tee_fs_rpc_open(uint32_t id, const char *fname, int *fd);
TEE_Result tee_fs_rpc_create(uint32_t id, const char *fname, int *fd);
TEE_Result tee_fs_rpc_close(uint32_t id, int fd);
TEE_Result tee_fs_rpc_read_init(struct tee_fs_rpc_operation *op,
uint32_t id, int fd, tee_fs_off_t offset,
size_t data_len, void **out_data);
TEE_Result tee_fs_rpc_read_final(struct tee_fs_rpc_operation *op,
size_t *data_len);
TEE_Result tee_fs_rpc_write_init(struct tee_fs_rpc_operation *op,
uint32_t id, int fd, tee_fs_off_t offset,
size_t data_len, void **data);
TEE_Result tee_fs_rpc_write_final(struct tee_fs_rpc_operation *op);
TEE_Result tee_fs_rpc_truncate(uint32_t id, int fd, size_t len);
TEE_Result tee_fs_rpc_remove(uint32_t id, const char *fname);
TEE_Result tee_fs_rpc_rename(uint32_t id, const char *old_fname,
const char *new_fname, bool overwrite);
TEE_Result tee_fs_rpc_opendir(uint32_t id, const char *name,
struct tee_fs_dir **d);
TEE_Result tee_fs_rpc_closedir(uint32_t id, struct tee_fs_dir *d);
TEE_Result tee_fs_rpc_readdir(uint32_t id, struct tee_fs_dir *d,
struct tee_fs_dirent **ent);
TEE_Result tee_fs_rpc_begin_transaction(uint32_t id);
TEE_Result tee_fs_rpc_end_transaction(uint32_t id, bool rollback);
struct thread_specific_data;
#if defined(CFG_WITH_USER_TA) && \
(defined(CFG_REE_FS) || defined(CFG_SQL_FS) || defined(CFG_RPMB_FS))
/* Frees the cache of allocated FS RPC memory */
void tee_fs_rpc_cache_clear(struct thread_specific_data *tsd);
#else
static inline void tee_fs_rpc_cache_clear(
struct thread_specific_data *tsd __unused)
{
}
#endif
/*
* Returns a pointer to the cached FS RPC memory. Each thread has a unique
* cache. The pointer is guaranteed to point to a large enough area or to
* be NULL.
*/
void *tee_fs_rpc_cache_alloc(size_t size, paddr_t *pa, uint64_t *cookie);
#endif /* TEE_FS_RPC_H */
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