1 /* 2 * Copyright (c) 2006-2021 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 #ifndef _IMAGEBOOT_H_ 29 #define _IMAGEBOOT_H_ 30 31 struct vnode; 32 33 typedef enum imageboot_type { 34 IMAGEBOOT_NONE, 35 IMAGEBOOT_DMG, 36 IMAGEBOOT_LOCKER, 37 } imageboot_type_t; 38 39 imageboot_type_t imageboot_needed(void); 40 bool imageboot_desired(void); 41 void imageboot_setup(imageboot_type_t type); 42 int imageboot_format_is_valid(const char *root_path); 43 int imageboot_mount_image(const char *root_path, int height, imageboot_type_t type); 44 int imageboot_pivot_image(const char *image_path, imageboot_type_t type, const char *mount_path, 45 const char *outgoing_root_path, const bool rooted_dmg, const bool skip_signature_check); 46 int imageboot_read_file_pageable(const char *path, void **bufp, size_t *bufszp); /* use kmem_free(kernel_map, ...) */ 47 int imageboot_read_file(const char *path, void **bufp, size_t *bufszp, off_t *fsizep); 48 int imageboot_read_file_from_offset(const char *path, off_t offset, void **bufp, size_t *bufszp); 49 50 struct vnode * 51 imgboot_get_image_file(const char *path, off_t *fsize, int *errp); 52 53 #define IMAGEBOOT_CONTAINER_ARG "container-dmg" 54 #define IMAGEBOOT_ROOT_ARG "root-dmg" 55 #define IMAGEBOOT_AUTHROOT_ARG "auth-root-dmg" 56 57 //IMAGEBOOT images are capped at 2.5GB 58 #define IMAGEBOOT_MAX_FILESIZE (2684354560ULL) 59 //limit certain kalloc calls to 2GB 60 #define IMAGEBOOT_MAX_KALLOCSIZE (2147483648ULL) 61 62 #endif 63