GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/installboot/softraid.c Lines: 0 27 0.0 %
Date: 2017-11-13 Branches: 0 16 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: softraid.c,v 1.4 2015/10/03 16:56:52 krw Exp $	*/
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/*
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 * Copyright (c) 2012 Joel Sing <jsing@openbsd.org>
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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#include <sys/dkio.h>
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#include <sys/ioctl.h>
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#include <dev/biovar.h>
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#include "installboot.h"
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static int sr_volume(int, char *, int *, int *);
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void
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sr_installboot(int devfd, char *dev)
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{
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	int	vol = -1, ndisks = 0, disk;
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	/* Use the normal process if this is not a softraid volume. */
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	if (!sr_volume(devfd, dev, &vol, &ndisks)) {
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		md_installboot(devfd, dev);
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		return;
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	}
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	/* Install boot loader in softraid volume. */
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	sr_install_bootldr(devfd, dev);
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	/* Install boot block on each disk that is part of this volume. */
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	for (disk = 0; disk < ndisks; disk++)
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		sr_install_bootblk(devfd, vol, disk);
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}
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int
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sr_volume(int devfd, char *dev, int *vol, int *disks)
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{
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	struct	bioc_inq bi;
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	struct	bioc_vol bv;
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	int	i;
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	/*
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	 * Determine if the given device is a softraid volume.
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	 */
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	/* Get volume information. */
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	memset(&bi, 0, sizeof(bi));
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	if (ioctl(devfd, BIOCINQ, &bi) == -1)
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		return 0;
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	/* XXX - softraid volumes will always have a "softraid0" controller. */
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	if (strncmp(bi.bi_dev, "softraid0", sizeof("softraid0")))
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		return 0;
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	/*
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	 * XXX - this only works with the real disk name (e.g. sd0) - this
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	 * should be extracted from the device name, or better yet, fixed in
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	 * the softraid ioctl.
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	 */
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	/* Locate specific softraid volume. */
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	for (i = 0; i < bi.bi_novol; i++) {
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		memset(&bv, 0, sizeof(bv));
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		bv.bv_volid = i;
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		if (ioctl(devfd, BIOCVOL, &bv) == -1)
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			err(1, "BIOCVOL");
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		if (strncmp(dev, bv.bv_dev, sizeof(bv.bv_dev)) == 0) {
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			*vol = i;
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			*disks = bv.bv_nodisk;
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			break;
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		}
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	}
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	if (verbose)
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		fprintf(stderr, "%s: softraid volume with %i disk(s)\n",
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		    dev, *disks);
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	return 1;
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}