1 /* 2 * Copyright (c) 2022 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #ifndef _VFS_EXCLAVE_FS_H_ 30 #define _VFS_EXCLAVE_FS_H_ 31 32 #include <kern/kern_types.h> 33 34 /* directory entry */ 35 typedef struct { 36 uint32_t length; 37 uint32_t returned_attrs[5]; 38 int32_t name_offset; 39 uint32_t name_length; 40 uint32_t obj_type; 41 uint64_t file_id; 42 off_t data_length; 43 } __attribute__((packed)) exclave_fs_dirent_t; 44 45 /* root_id for non-EFT_EXCLAVE fs, maps to base dir */ 46 #define EXCLAVE_FS_BASEDIR_ROOT_ID 0 47 48 /* sync operations for vfs_exclave_fs_sync() */ 49 #define EXCLAVE_FS_SYNC_OP_BARRIER 0 50 #define EXCLAVE_FS_SYNC_OP_FULL 1 51 52 #define EXCLAVE_FS_REGISTER_ENTITLEMENT "com.apple.private.vfs.exclave-fs-register" 53 54 int vfs_exclave_fs_start(void); 55 void vfs_exclave_fs_stop(void); 56 57 int vfs_exclave_fs_register(uint32_t fs_tag, vnode_t vp); 58 int vfs_exclave_fs_unregister(vnode_t vp); 59 int vfs_exclave_fs_get_base_dirs(void *buf, uint32_t *count); 60 61 int vfs_exclave_fs_register_path(uint32_t fs_tag, const char *base_path); 62 63 int vfs_exclave_fs_root(const char *exclave_id, uint64_t *root_id); 64 int vfs_exclave_fs_open(uint32_t fs_tag, uint64_t root_id, const char *name, uint64_t *file_id); 65 int vfs_exclave_fs_close(uint32_t fs_tag, uint64_t file_id); 66 int vfs_exclave_fs_create(uint32_t fs_tag, uint64_t root_id, const char *name, uint64_t *file_id); 67 int vfs_exclave_fs_read(uint32_t fs_tag, uint64_t file_id, uint64_t file_offset, uint64_t length, void *data); 68 int vfs_exclave_fs_write(uint32_t fs_tag, uint64_t file_id, uint64_t file_offset, uint64_t length, void *data); 69 int vfs_exclave_fs_remove(uint32_t fs_tag, uint64_t root_id, const char *name); 70 int vfs_exclave_fs_sync(uint32_t fs_tag, uint64_t file_id, uint64_t sync_op); 71 int vfs_exclave_fs_readdir(uint32_t fs_tag, uint64_t file_id, void *dirent_buf, 72 uint32_t buf_size, int32_t *count); 73 int vfs_exclave_fs_getsize(uint32_t fs_tag, uint64_t file_id, uint64_t *size); 74 int vfs_exclave_fs_sealstate(uint32_t fs_tag, bool *sealed); 75 76 #endif 77