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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (c) 2016, Linaro Limited
*/
/*
* 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;
};
struct tee_fs_dirfile_fileh;
TEE_Result tee_fs_rpc_open(uint32_t id, struct tee_pobj *po, int *fd);
TEE_Result tee_fs_rpc_open_dfh(uint32_t id,
const struct tee_fs_dirfile_fileh *dfh, int *fd);
TEE_Result tee_fs_rpc_create(uint32_t id, struct tee_pobj *po, int *fd);
TEE_Result tee_fs_rpc_create_dfh(uint32_t id,
const struct tee_fs_dirfile_fileh *dfh,
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, struct tee_pobj *po);
TEE_Result tee_fs_rpc_remove_dfh(uint32_t id,
const struct tee_fs_dirfile_fileh *dfh);
TEE_Result tee_fs_rpc_rename(uint32_t id, struct tee_pobj *old,
struct tee_pobj *new, bool overwrite);
TEE_Result tee_fs_rpc_opendir(uint32_t id, const TEE_UUID *uuid,
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);
struct thread_specific_data;
#if defined(CFG_WITH_USER_TA) && (defined(CFG_REE_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, struct mobj **mobj, uint64_t *cookie);
#endif /* TEE_FS_RPC_H */
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