1/*
2 * Copyright (c) 2021-22 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 _GRAFTDMG_UN_
29#define _GRAFTDMG_UN_
30
31#include <sys/_types/_u_int8_t.h>
32#include <sys/_types/_u_int64_t.h>
33#include <sys/_types/_u_int32_t.h>
34
35#define GRAFTDMG_SECURE_BOOT_CRYPTEX_ARGS_VERSION 1
36#define MAX_GRAFT_ARGS_SIZE 512
37
38/* Flag values for secure_boot_cryptex_args.sbc_flags */
39#define SBC_PRESERVE_MOUNT 0x0001 /* Preserve underlying mount until shutdown */
40#define SBC_ALTERNATE_SHARED_REGION 0x0002 /* Binaries within should use alternate shared region */
41#define SBC_SYSTEM_CONTENT 0x0004 /* Cryptex contains system content */
42#define SBC_PANIC_ON_AUTHFAIL 0x0008 /* On failure to authenticate, panic */
43#define SBC_STRICT_AUTH 0x0010 /* Strict authentication mode */
44#define SBC_PRESERVE_GRAFT 0x0020 /* Preserve graft itself until unmount */
45
46typedef struct secure_boot_cryptex_args {
47 u_int32_t sbc_version;
48 u_int32_t sbc_4cc;
49 int sbc_authentic_manifest_fd;
50 int sbc_user_manifest_fd;
51 int sbc_payload_fd;
52 u_int64_t sbc_flags;
53} __attribute__((aligned(4), packed)) secure_boot_cryptex_args_t;
54
55typedef union graft_args {
56 u_int8_t max_size[MAX_GRAFT_ARGS_SIZE];
57 secure_boot_cryptex_args_t sbc_args;
58} graftdmg_args_un;
59
60#endif /* _GRAFTDMG_UN_ */
61