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      1 /*	$NetBSD: md.c,v 1.11 2022/01/29 16:01:18 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 -- hpcarm machine specific routines */
     36 
     37 #include <stdio.h>
     38 #include <util.h>
     39 #include <sys/param.h>
     40 #include <machine/cpu.h>
     41 #include <sys/sysctl.h>
     42 
     43 #include "defs.h"
     44 #include "md.h"
     45 #include "msg_defs.h"
     46 #include "menu_defs.h"
     47 #include "endian.h"
     48 #include "mbr.h"
     49 
     50 void
     51 md_init(void)
     52 {
     53 }
     54 
     55 void
     56 md_init_set_status(int flags)
     57 {
     58 	static const struct {
     59 		const char *name;
     60 		const int set;
     61 	} kern_sets[] = {
     62 		{ "IPAQ",	SET_KERNEL_IPAQ },
     63 		{ "JORNADA720",	SET_KERNEL_JORNADA720 },
     64 		{ "WZERO3",	SET_KERNEL_WZERO3 }
     65 	};
     66 	static const int mib[2] = {CTL_KERN, KERN_VERSION};
     67 	size_t len;
     68 	char *version;
     69 	u_int i;
     70 
     71 	/* check INSTALL kernel name to select an appropriate kernel set */
     72 	/* XXX: hw.cpu_model has a processor name on arm ports */
     73 	sysctl(mib, 2, NULL, &len, NULL, 0);
     74 	version = malloc(len);
     75 	if (version == NULL)
     76 		return;
     77 	sysctl(mib, 2, version, &len, NULL, 0);
     78 	for (i = 0; i < __arraycount(kern_sets); i++) {
     79 		if (strstr(version, kern_sets[i].name) != NULL) {
     80 			set_kernel_set(kern_sets[i].set);
     81 			break;
     82 		}
     83 	}
     84 	free(version);
     85 }
     86 
     87 bool
     88 md_get_info(struct install_partition_desc *install)
     89 {
     90 	int res;
     91 
     92 	if (pm->no_mbr || pm->no_part)
     93 		return true;
     94 
     95 again:
     96 	if (pm->parts == NULL) {
     97 
     98 		const struct disk_partitioning_scheme *ps =
     99 		    select_part_scheme(pm, NULL, true, NULL);
    100 
    101 		if (!ps)
    102 			return false;
    103 
    104 		struct disk_partitions *parts =
    105 		   (*ps->create_new_for_disk)(pm->diskdev,
    106 		   0, pm->dlsize, true, NULL);
    107 		if (!parts)
    108 			return false;
    109 
    110 		pm->parts = parts;
    111 		if (ps->size_limit > 0 && pm->dlsize > ps->size_limit)
    112 			pm->dlsize = ps->size_limit;
    113 	}
    114 
    115 	res = set_bios_geom_with_mbr_guess(pm->parts);
    116 	if (res == 0)
    117 		return false;
    118 	else if (res == 1)
    119 		return true;
    120 
    121 	pm->parts->pscheme->destroy_part_scheme(pm->parts);
    122 	pm->parts = NULL;
    123 	goto again;
    124 }
    125 
    126 /*
    127  * md back-end code for menu-driven BSD disklabel editor.
    128  */
    129 int
    130 md_make_bsd_partitions(struct install_partition_desc *install)
    131 {
    132 	return make_bsd_partitions(install);
    133 }
    134 
    135 /*
    136  * any additional partition validation
    137  */
    138 bool
    139 md_check_partitions(struct install_partition_desc *install)
    140 {
    141 	return true;
    142 }
    143 
    144 /*
    145  * hook called before writing new disklabel.
    146  */
    147 bool
    148 md_pre_disklabel(struct install_partition_desc *install,
    149     struct disk_partitions *parts)
    150 {
    151 
    152 	if (parts->parent == NULL)
    153 		return true;	/* no outer partitions */
    154 
    155 	parts = parts->parent;
    156 
    157 	msg_display_subst(MSG_dofdisk, 3, parts->disk,
    158 	    msg_string(parts->pscheme->name),
    159 	    msg_string(parts->pscheme->short_name));
    160 
    161 	/* write edited "MBR" onto disk. */
    162 	if (!parts->pscheme->write_to_disk(parts)) {
    163 		msg_display(MSG_wmbrfail);
    164 		process_menu(MENU_ok, NULL);
    165 		return false;
    166 	}
    167 	return true;
    168 }
    169 
    170 /*
    171  * hook called after writing disklabel to new target disk.
    172  */
    173 bool
    174 md_post_disklabel(struct install_partition_desc *install,
    175     struct disk_partitions *parts)
    176 {
    177 #if 0
    178 	/* Sector forwarding / badblocks ... */
    179 	if (*pm->doessf) {
    180 		msg_display(MSG_dobad144);
    181 		return run_program(RUN_DISPLAY, "/usr/sbin/bad144 %s 0",
    182 		    pm->diskdev);
    183 	}
    184 #endif
    185 
    186 	return true;
    187 }
    188 
    189 /*
    190  * hook called after upgrade() or install() has finished setting
    191  * up the target disk but immediately before the user is given the
    192  * ``disks are now set up'' message.
    193  */
    194 int
    195 md_post_newfs(struct install_partition_desc *install)
    196 {
    197 	struct mbr_sector pbr;
    198 	char adevname[STRSIZE];
    199 	ssize_t sz;
    200 	int fd = -1;
    201 
    202 	snprintf(adevname, sizeof(adevname), "/dev/r%sa", pm->diskdev);
    203 	fd = open(adevname, O_RDWR);
    204 	if (fd < 0)
    205 		goto out;
    206 
    207 	/* Read partition boot record */
    208 	sz = pread(fd, &pbr, sizeof(pbr), 0);
    209 	if (sz != sizeof(pbr))
    210 		goto out;
    211 
    212 	/* Check magic number */
    213 	if (pbr.mbr_magic != le16toh(MBR_MAGIC))
    214 		goto out;
    215 
    216 #define	OSNAME	"NetBSD60"
    217 	/* Update oemname */
    218 	memcpy(&pbr.mbr_oemname, OSNAME, sizeof(OSNAME) - 1);
    219 
    220 	/* Clear BPB */
    221 	memset(&pbr.mbr_bpb, 0, sizeof(pbr.mbr_bpb));
    222 
    223 	/* write-backed new partition boot record */
    224 	(void)pwrite(fd, &pbr, sizeof(pbr), 0);
    225 
    226 out:
    227 	if (fd >= 0)
    228 		close(fd);
    229 	return 0;
    230 }
    231 
    232 int
    233 md_post_extract(struct install_partition_desc *install, bool upgrade)
    234 {
    235 	return 0;
    236 }
    237 
    238 void
    239 md_cleanup_install(struct install_partition_desc *install)
    240 {
    241 #ifndef DEBUG
    242 	enable_rc_conf();
    243 #endif
    244 }
    245 
    246 int
    247 md_pre_update(struct install_partition_desc *install)
    248 {
    249 	return 1;
    250 }
    251 
    252 /* Upgrade support */
    253 int
    254 md_update(struct install_partition_desc *install)
    255 {
    256 	md_post_newfs(install);
    257 	return 1;
    258 }
    259 
    260 int
    261 md_check_mbr(struct disk_partitions *parts, mbr_info_t *mbri, bool quiet)
    262 {
    263 	return 2;
    264 }
    265 
    266 bool
    267 md_parts_use_wholedisk(struct disk_partitions *parts)
    268 {
    269 	return parts_use_wholedisk(parts, 0, NULL);
    270 }
    271 
    272 int
    273 md_pre_mount(struct install_partition_desc *install, size_t ndx)
    274 {
    275 	return 0;
    276 }
    277 
    278 bool
    279 md_mbr_update_check(struct disk_partitions *parts, mbr_info_t *mbri)
    280 {
    281 	return false;	/* no change, no need to write back */
    282 }
    283 
    284 #ifdef HAVE_GPT
    285 bool
    286 md_gpt_post_write(struct disk_partitions *parts, part_id root_id,
    287     bool root_is_new, part_id efi_id, bool efi_is_new)
    288 {
    289 	/* no GPT boot support, nothing needs to be done here */
    290 	return true;
    291 }
    292 #endif
    293 
    294