66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/* $NetBSD: miniroot.c,v 1.3 2008/11/16 15:47:35 ad Exp $ */
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/*-
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* Copyright (c) 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: miniroot.c,v 1.3 2008/11/16 15:47:35 ad Exp $");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <dev/md.h>
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MODULE(MODULE_CLASS_MISC, miniroot, NULL);
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static int
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miniroot_modcmd(modcmd_t cmd, void *arg)
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{
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void *addr;
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int error;
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size_t size;
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switch (cmd) {
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case MODULE_CMD_INIT:
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error = module_find_section("miniroot", &addr, &size);
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if (error == 0) {
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if (size == 0) {
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error = EINVAL;
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} else {
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md_root_setconf(addr, size);
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}
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}
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return error;
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case MODULE_CMD_FINI:
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return EOPNOTSUPP;
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default:
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return ENOTTY;
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}
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}
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