1 /* 2 * Copyright (c) 2005-2008 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 #ifdef KERNEL_PRIVATE 30 31 #ifndef _KERN_PAGE_DECRYPT_H 32 #define _KERN_PAGE_DECRYPT_H 33 34 #include <mach/machine.h> 35 36 /* 37 * Interface for DSMOS 38 */ 39 typedef int (*dsmos_page_transform_hook_t) (const void *, void*, unsigned long long, void *); 40 extern void dsmos_page_transform_hook(dsmos_page_transform_hook_t hook); /* exported */ 41 42 extern int dsmos_page_transform(const void *, void*, unsigned long long, void*); 43 44 45 /* 46 * Interface for text decryption family 47 */ 48 struct pager_crypt_info { 49 /* Decrypt one page */ 50 int (*page_decrypt)(const void *src_vaddr, void *dst_vaddr, 51 unsigned long long src_offset, void *crypt_ops); 52 /* Pager using this crypter terminates - crypt module not needed anymore */ 53 void (*crypt_end)(void *crypt_ops); 54 /* Private data for the crypter */ 55 void *crypt_ops; 56 volatile int crypt_refcnt; 57 }; 58 typedef struct pager_crypt_info pager_crypt_info_t; 59 60 typedef enum { 61 CRYPT_ORIGIN_ANY, 62 CRYPT_ORIGIN_APP_LAUNCH, 63 CRYPT_ORIGIN_LIBRARY_LOAD, 64 CRYPT_ORIGIN_MAX, 65 } crypt_origin_t; 66 67 struct crypt_file_data { 68 char *filename; 69 cpu_type_t cputype; 70 cpu_subtype_t cpusubtype; 71 crypt_origin_t origin; 72 }; 73 typedef struct crypt_file_data crypt_file_data_t; 74 75 typedef int (*text_crypter_create_hook_t)(struct pager_crypt_info *crypt_info, 76 const char *id, void *crypt_data); 77 extern void text_crypter_create_hook_set(text_crypter_create_hook_t hook); 78 extern text_crypter_create_hook_t text_crypter_create; 79 80 #endif /* _KERN_PAGE_DECRYPT_H */ 81 82 #endif /* KERNEL_PRIVATE */ 83