FreeBSD/Linux Kernel Cross Reference
sys/crypto/intake.h
1 /*-
2 * Copyright (c) 2016 Eric McCorkle
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29 #ifndef _INTAKE_H_
30 #define _INTAKE_H_
31
32 #include <sys/param.h>
33
34 /*
35 * This file provides an interface for providing keys to the kernel
36 * during boot time.
37 */
38
39 #define MAX_KEY_BITS 4096
40 #define MAX_KEY_BYTES (MAX_KEY_BITS / NBBY)
41
42 #define KEYBUF_SENTINEL 0xcee54b5d /* KEYS4BSD */
43
44 enum {
45 KEYBUF_TYPE_NONE,
46 KEYBUF_TYPE_GELI
47 };
48
49 struct keybuf_ent {
50 unsigned int ke_type;
51 char ke_data[MAX_KEY_BYTES];
52 };
53
54 struct keybuf {
55 unsigned int kb_nents;
56 struct keybuf_ent kb_ents[];
57 };
58
59 #ifdef _KERNEL
60 /* Get the key intake buffer */
61 extern struct keybuf* get_keybuf(void);
62 #endif
63
64 #endif
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