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 uint8_t oid[TEE_OBJECT_ID_MAX_LEN]; 42 size_t oidlen; 43 }; 44 45 struct tee_fs_dir; 46 struct tee_file_handle; 47 struct tee_pobj; 48 49 /* 50 * tee_fs implements a POSIX like secure file system with GP extension 51 */ 52 struct tee_file_operations { 53 TEE_Result (*open)(struct tee_pobj *po, size_t *size, 54 struct tee_file_handle **fh); 55 TEE_Result (*create)(struct tee_pobj *po, bool overwrite, 56 const void *head, size_t head_size, 57 const void *attr, size_t attr_size, 58 const void *data, size_t data_size, 59 struct tee_file_handle **fh); 60 void (*close)(struct tee_file_handle **fh); 61 TEE_Result (*read)(struct tee_file_handle *fh, size_t pos, 62 void *buf, size_t *len); 63 TEE_Result (*write)(struct tee_file_handle *fh, size_t pos, 64 const void *buf, size_t len); 65 TEE_Result (*rename)(struct tee_pobj *old_po, struct tee_pobj *new_po, 66 bool overwrite); 67 TEE_Result (*remove)(struct tee_pobj *po); 68 TEE_Result (*truncate)(struct tee_file_handle *fh, size_t size); 69 70 TEE_Result (*opendir)(const TEE_UUID *uuid, struct tee_fs_dir **d); 71 TEE_Result (*readdir)(struct tee_fs_dir *d, struct tee_fs_dirent **ent); 72 void (*closedir)(struct tee_fs_dir *d); 73 }; 74 75 #ifdef CFG_REE_FS 76 extern const struct tee_file_operations ree_fs_ops; 77 #endif 78 #ifdef CFG_RPMB_FS 79 extern const struct tee_file_operations rpmb_fs_ops; 80 81 TEE_Result tee_rpmb_fs_raw_open(const char *fname, bool create, 82 struct tee_file_handle **fh); 83 #endif 84 85 #endif /*TEE_FS_H*/ 86