xref: /xnu-8020.140.41/osfmk/kern/page_decrypt.c (revision 27b03b360a988dfd3dfdf34262bb0042026747cc)
1*27b03b36SApple OSS Distributions /*
2*27b03b36SApple OSS Distributions  * Copyright (c) 2005-2006 Apple Computer, Inc. All rights reserved.
3*27b03b36SApple OSS Distributions  *
4*27b03b36SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*27b03b36SApple OSS Distributions  *
6*27b03b36SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*27b03b36SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*27b03b36SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*27b03b36SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*27b03b36SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*27b03b36SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*27b03b36SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*27b03b36SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*27b03b36SApple OSS Distributions  *
15*27b03b36SApple OSS Distributions  * Please obtain a copy of the License at
16*27b03b36SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*27b03b36SApple OSS Distributions  *
18*27b03b36SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*27b03b36SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*27b03b36SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*27b03b36SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*27b03b36SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*27b03b36SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*27b03b36SApple OSS Distributions  * limitations under the License.
25*27b03b36SApple OSS Distributions  *
26*27b03b36SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*27b03b36SApple OSS Distributions  */
28*27b03b36SApple OSS Distributions 
29*27b03b36SApple OSS Distributions #include <debug.h>
30*27b03b36SApple OSS Distributions 
31*27b03b36SApple OSS Distributions #include <kern/page_decrypt.h>
32*27b03b36SApple OSS Distributions #include <kern/task.h>
33*27b03b36SApple OSS Distributions #include <machine/commpage.h>
34*27b03b36SApple OSS Distributions 
35*27b03b36SApple OSS Distributions static dsmos_page_transform_hook_t dsmos_hook;
36*27b03b36SApple OSS Distributions 
37*27b03b36SApple OSS Distributions void
dsmos_page_transform_hook(dsmos_page_transform_hook_t hook)38*27b03b36SApple OSS Distributions dsmos_page_transform_hook(dsmos_page_transform_hook_t hook)
39*27b03b36SApple OSS Distributions {
40*27b03b36SApple OSS Distributions 	printf("DSMOS has arrived\n");
41*27b03b36SApple OSS Distributions 	/* set the hook now - new callers will run with it */
42*27b03b36SApple OSS Distributions 	dsmos_hook = hook;
43*27b03b36SApple OSS Distributions }
44*27b03b36SApple OSS Distributions 
45*27b03b36SApple OSS Distributions int
dsmos_page_transform(const void * from,void * to,unsigned long long src_offset,void * ops)46*27b03b36SApple OSS Distributions dsmos_page_transform(const void* from, void *to, unsigned long long src_offset, void *ops)
47*27b03b36SApple OSS Distributions {
48*27b03b36SApple OSS Distributions 	static boolean_t first_wait = TRUE;
49*27b03b36SApple OSS Distributions 
50*27b03b36SApple OSS Distributions 	if (dsmos_hook == NULL) {
51*27b03b36SApple OSS Distributions 		if (first_wait) {
52*27b03b36SApple OSS Distributions 			first_wait = FALSE;
53*27b03b36SApple OSS Distributions 			printf("Waiting for DSMOS...\n");
54*27b03b36SApple OSS Distributions 		}
55*27b03b36SApple OSS Distributions 		return KERN_ABORTED;
56*27b03b36SApple OSS Distributions 	}
57*27b03b36SApple OSS Distributions 	return (*dsmos_hook)(from, to, src_offset, ops);
58*27b03b36SApple OSS Distributions }
59*27b03b36SApple OSS Distributions 
60*27b03b36SApple OSS Distributions 
61*27b03b36SApple OSS Distributions text_crypter_create_hook_t text_crypter_create;
62*27b03b36SApple OSS Distributions void
text_crypter_create_hook_set(text_crypter_create_hook_t hook)63*27b03b36SApple OSS Distributions text_crypter_create_hook_set(text_crypter_create_hook_t hook)
64*27b03b36SApple OSS Distributions {
65*27b03b36SApple OSS Distributions 	text_crypter_create = hook;
66*27b03b36SApple OSS Distributions }
67