1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2014, STMicroelectronics International N.V. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef TEE_FS_H 30 #define TEE_FS_H 31 32 #include <stddef.h> 33 #include <stdint.h> 34 #include <tee_api_types.h> 35 36 #define TEE_FS_NAME_MAX 350 37 38 typedef int64_t tee_fs_off_t; 39 typedef uint32_t tee_fs_mode_t; 40 41 struct tee_fs_dirent { 42 uint8_t oid[TEE_OBJECT_ID_MAX_LEN]; 43 size_t oidlen; 44 }; 45 46 struct tee_fs_dir; 47 struct tee_file_handle; 48 struct tee_pobj; 49 50 /* 51 * tee_fs implements a POSIX like secure file system with GP extension 52 */ 53 struct tee_file_operations { 54 TEE_Result (*open)(struct tee_pobj *po, size_t *size, 55 struct tee_file_handle **fh); 56 TEE_Result (*create)(struct tee_pobj *po, bool overwrite, 57 const void *head, size_t head_size, 58 const void *attr, size_t attr_size, 59 const void *data, size_t data_size, 60 struct tee_file_handle **fh); 61 void (*close)(struct tee_file_handle **fh); 62 TEE_Result (*read)(struct tee_file_handle *fh, size_t pos, 63 void *buf, size_t *len); 64 TEE_Result (*write)(struct tee_file_handle *fh, size_t pos, 65 const void *buf, size_t len); 66 TEE_Result (*rename)(struct tee_pobj *old_po, struct tee_pobj *new_po, 67 bool overwrite); 68 TEE_Result (*remove)(struct tee_pobj *po); 69 TEE_Result (*truncate)(struct tee_file_handle *fh, size_t size); 70 71 TEE_Result (*opendir)(const TEE_UUID *uuid, struct tee_fs_dir **d); 72 TEE_Result (*readdir)(struct tee_fs_dir *d, struct tee_fs_dirent **ent); 73 void (*closedir)(struct tee_fs_dir *d); 74 }; 75 76 #ifdef CFG_REE_FS 77 extern const struct tee_file_operations ree_fs_ops; 78 #endif 79 #ifdef CFG_RPMB_FS 80 extern const struct tee_file_operations rpmb_fs_ops; 81 82 TEE_Result tee_rpmb_fs_raw_open(const char *fname, bool create, 83 struct tee_file_handle **fh); 84 #endif 85 86 #endif /*TEE_FS_H*/ 87