1/*	$NetBSD: md.c,v 1.27 2011/11/04 11:27:04 martin Exp $	*/
2
3/*
4 * Copyright 1997 Piermont Information Systems Inc.
5 * All rights reserved.
6 *
7 * Based on code written by Philip A. Nelson for Piermont Information
8 * Systems Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. The name of Piermont Information Systems Inc. may not be used to endorse
19 *    or promote products derived from this software without specific prior
20 *    written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35/* md.c -- shark machine specific routines */
36
37#include <stdio.h>
38#include <curses.h>
39#include <unistd.h>
40#include <fcntl.h>
41#include <util.h>
42#include <sys/types.h>
43#include <sys/disklabel.h>
44#include <sys/ioctl.h>
45#include <sys/param.h>
46
47#include "defs.h"
48#include "md.h"
49#include "msg_defs.h"
50#include "menu_defs.h"
51
52static int clear_mbr(const char *, char *, size_t);
53
54void
55md_init(void)
56{
57}
58
59void
60md_init_set_status(int flags)
61{
62	(void)flags;
63}
64
65int
66md_get_info(void)
67{
68	struct disklabel disklabel;
69	int fd;
70	char dev_name[100];
71
72	if (strncmp(diskdev, "wd", 2) == 0)
73		disktype = "ST506";
74	else
75		disktype = "SCSI";
76
77	snprintf(dev_name, 100, "/dev/r%sc", diskdev);
78
79	fd = open(dev_name, O_RDONLY, 0);
80	if (fd < 0) {
81		endwin();
82		fprintf(stderr, "Can't open %s\n", dev_name);
83		exit(1);
84	}
85	if (ioctl(fd, DIOCGDINFO, &disklabel) == -1) {
86		endwin();
87		fprintf(stderr, "Can't read disklabel on %s.\n", dev_name);
88		close(fd);
89		exit(1);
90	}
91	close(fd);
92
93	dlcyl = disklabel.d_ncylinders;
94	dlhead = disklabel.d_ntracks;
95	dlsec = disklabel.d_nsectors;
96	sectorsize = disklabel.d_secsize;
97	dlcylsize = disklabel.d_secpercyl;
98
99	/*
100	 * Compute whole disk size. Take max of (dlcyl*dlhead*dlsec)
101	 * and secperunit,  just in case the disk is already labelled.
102	 * (If our new label's RAW_PART size ends up smaller than the
103	 * in-core RAW_PART size  value, updating the label will fail.)
104	 */
105	dlsize = dlcyl*dlhead*dlsec;
106	if (disklabel.d_secperunit > dlsize)
107		dlsize = disklabel.d_secperunit;
108
109	return 1;
110}
111
112/*
113 * md back-end code for menu-driven BSD disklabel editor.
114 */
115int
116md_make_bsd_partitions(void)
117{
118	return make_bsd_partitions();
119}
120
121/*
122 * any additional partition validation
123 */
124int
125md_check_partitions(void)
126{
127	return 1;
128}
129
130/*
131 * hook called before writing new disklabel.
132 */
133int
134md_pre_disklabel(void)
135{
136	char diskpath[MAXPATHLEN];
137
138	if (clear_mbr(diskdev, diskpath, sizeof(diskpath)) == -1) {
139		msg_display(MSG_badclearmbr, diskpath);
140		process_menu(MENU_ok, NULL);
141	}
142
143	return 0;
144}
145
146/*
147 * hook called after writing disklabel to new target disk.
148 */
149int
150md_post_disklabel(void)
151{
152	return 0;
153}
154
155/*
156 * hook called after upgrade() or install() has finished setting
157 * up the target disk but immediately before the user is given the
158 * ``disks are now set up'' message.
159 */
160int
161md_post_newfs(void)
162{
163	return 0;
164}
165
166int
167md_post_extract(void)
168{
169	msg_display(MSG_setbootdevice);
170	process_menu(MENU_ok, NULL);
171
172	return 0;
173}
174
175void
176md_cleanup_install(void)
177{
178#ifndef DEBUG
179	enable_rc_conf();
180	add_rc_conf("wscons=YES\n");
181
182	/* Configure a single screen. */
183	run_program(RUN_CHROOT,
184		    "sed -an -e '/^screen/s/^/#/;/^mux/s/^/#/;"
185		    "H;$!d;g;w /etc/wscons.conf' /etc/wscons.conf");
186
187#endif
188}
189
190int
191md_pre_update(void)
192{
193	return 1;
194}
195
196/* Upgrade support */
197int
198md_update(void)
199{
200	md_post_newfs();
201	return 1;
202}
203
204/*
205 * Clears the disk's first sector by writing all zeros over it.
206 * Returns 0 on success, -1 on failure.  Leaves the disk's path in
207 * the output diskpath buffer for further usage in error messages.
208 */
209static int
210clear_mbr(const char *disk, char *diskpath, size_t diskpathlen)
211{
212	int fd;
213	char sector[512];
214
215	fd = opendisk(disk, O_WRONLY, diskpath, diskpathlen, 0);
216	if (fd < 0)
217		return -1;
218
219	memset(sector, 0, sizeof(sector));
220	if (pwrite(fd, &sector, sizeof(sector), 0) < 0) {
221		close(fd);
222		return -1;
223	}
224
225	close(fd);
226	return 0;
227}
228
229
230int
231md_pre_mount()
232{
233	return 0;
234}
235