The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/crypto/intake.h

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    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: releng/11.2/sys/crypto/intake.h 329099 2018-02-10 04:37:44Z kevans $
   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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