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freebsd/sys/crypto/intake.h

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/*-
* Copyright (c) 2016 Eric McCorkle
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _INTAKE_H_
#define _INTAKE_H_
#include <sys/param.h>
/*
* This file provides an interface for providing keys to the kernel
* during boot time.
*/
#define MAX_KEY_BITS 4096
#define MAX_KEY_BYTES (MAX_KEY_BITS / NBBY)
#define KEYBUF_SENTINEL 0xcee54b5d /* KEYS4BSD */
enum {
KEYBUF_TYPE_NONE,
KEYBUF_TYPE_GELI
};
struct keybuf_ent {
unsigned int ke_type;
char ke_data[MAX_KEY_BYTES];
};
struct keybuf {
unsigned int kb_nents;
struct keybuf_ent kb_ents[];
};
#ifdef _KERNEL
/* Get the key intake buffer */
extern struct keybuf* get_keybuf(void);
#endif
#endif