1 /* 2 * Copyright (c) 2014, STMicroelectronics International N.V. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef TEE_FS_H 29 #define TEE_FS_H 30 31 #include <stddef.h> 32 #include <stdint.h> 33 #include <tee_api_types.h> 34 35 #define TEE_FS_NAME_MAX 350 36 37 typedef int64_t tee_fs_off_t; 38 typedef uint32_t tee_fs_mode_t; 39 40 struct tee_fs_dirent { 41 char *d_name; 42 }; 43 44 struct tee_fs_dir; 45 struct tee_file_handle; 46 47 /* 48 * tee_fs implements a POSIX like secure file system with GP extension 49 */ 50 struct tee_file_operations { 51 TEE_Result (*open)(const char *name, struct tee_file_handle **fh); 52 TEE_Result (*create)(const char *name, struct tee_file_handle **fh); 53 void (*close)(struct tee_file_handle **fh); 54 TEE_Result (*read)(struct tee_file_handle *fh, void *buf, size_t *len); 55 TEE_Result (*write)(struct tee_file_handle *fh, const void *buf, 56 size_t len); 57 TEE_Result (*seek)(struct tee_file_handle *fh, int32_t offs, 58 TEE_Whence whence, int32_t *new_offs); 59 TEE_Result (*rename)(const char *old_name, const char *new_name, 60 bool overwrite); 61 TEE_Result (*remove)(const char *name); 62 TEE_Result (*truncate)(struct tee_file_handle *fh, size_t size); 63 64 TEE_Result (*opendir)(const char *name, struct tee_fs_dir **d); 65 TEE_Result (*readdir)(struct tee_fs_dir *d, struct tee_fs_dirent **ent); 66 void (*closedir)(struct tee_fs_dir *d); 67 }; 68 69 #ifdef CFG_REE_FS 70 extern const struct tee_file_operations ree_fs_ops; 71 #endif 72 #ifdef CFG_RPMB_FS 73 extern const struct tee_file_operations rpmb_fs_ops; 74 #endif 75 #ifdef CFG_SQL_FS 76 extern const struct tee_file_operations sql_fs_ops; 77 #endif 78 79 #endif 80