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51 lines
2.1 KiB
C
51 lines
2.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2018 Ian Lepore <ian@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stand.h>
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#include <bootstrap.h>
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#include <sys/param.h>
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#include <sys/linker.h>
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#include "geliboot.h"
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/*
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* Export a keybuf as metadata attached to a kernel module. This is separate
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* from the lower-level key management functions to avoid creating a linker
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* dependency on the libsa metadata routines when the geli code is linked into
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* early-stage bootloaders such as gptboot. Only loader(8) variants call this.
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*/
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void
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geli_export_key_metadata(struct preloaded_file *kfp)
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{
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struct keybuf *keybuf;
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keybuf = malloc(GELI_KEYBUF_SIZE);
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geli_export_key_buffer(keybuf);
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file_addmetadata(kfp, MODINFOMD_KEYBUF, GELI_KEYBUF_SIZE, keybuf);
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explicit_bzero(keybuf, GELI_KEYBUF_SIZE);
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free(keybuf);
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}
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