1 /* $NetBSD: md.c,v 1.13 2020/06/10 16:56:22 tsutsui 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 -- cobalt machine specific routines */ 36 37 #include <sys/param.h> 38 #include <sys/sysctl.h> 39 #include <stdio.h> 40 #include <util.h> 41 #include <machine/cpu.h> 42 43 #include "defs.h" 44 #include "md.h" 45 #include "msg_defs.h" 46 #include "menu_defs.h" 47 48 /* 49 * Firmware reognizes only Linux Ext2 REV 0, so we have to have 50 * a Linux Ext2 fs to store our native bootloader. 51 */ 52 static int nobootfs = 0; 53 54 void 55 md_init(void) 56 { 57 } 58 59 void 60 md_init_set_status(int flags) 61 { 62 (void)flags; 63 } 64 65 bool 66 md_get_info(struct install_partition_desc *install) 67 { 68 69 if (pm->no_mbr || pm->no_part) 70 return true; 71 72 if (pm->parts == NULL) { 73 74 const struct disk_partitioning_scheme *ps = 75 select_part_scheme(pm, NULL, true, NULL); 76 77 if (!ps) 78 return false; 79 80 struct disk_partitions *parts = 81 (*ps->create_new_for_disk)(pm->diskdev, 82 0, pm->dlsize, true, NULL); 83 if (!parts) 84 return false; 85 86 pm->parts = parts; 87 if (ps->size_limit > 0 && pm->dlsize > ps->size_limit) 88 pm->dlsize = ps->size_limit; 89 } 90 91 return set_bios_geom_with_mbr_guess(pm->parts); 92 } 93 94 /* 95 * md back-end code for menu-driven BSD disklabel editor. 96 */ 97 bool 98 md_make_bsd_partitions(struct install_partition_desc *install) 99 { 100 return make_bsd_partitions(install); 101 } 102 103 /* 104 * any additional partition validation 105 */ 106 bool 107 md_check_partitions(struct install_partition_desc *install) 108 { 109 size_t part; 110 111 /* we need to find a boot partition, otherwise we can't write our 112 * bootloader. We make the assumption that the user hasn't done 113 * something stupid, like move it away from the MBR partition. 114 */ 115 for (part = 0; part < install->num; part++) { 116 if (install->infos[part].fs_type == PART_BOOT_TYPE) 117 return true; 118 } 119 120 msg_display(MSG_nobootpartdisklabel); 121 process_menu(MENU_ok, NULL); 122 return false; 123 } 124 125 /* 126 * hook called before writing new disklabel. 127 */ 128 bool 129 md_pre_disklabel(struct install_partition_desc *install, 130 struct disk_partitions *parts) 131 { 132 133 if (parts->parent == NULL) 134 return true; /* no outer partitions */ 135 136 parts = parts->parent; 137 138 msg_display_subst(MSG_dofdisk, 3, parts->disk, 139 msg_string(parts->pscheme->name), 140 msg_string(parts->pscheme->short_name)); 141 142 /* write edited "MBR" onto disk. */ 143 if (!parts->pscheme->write_to_disk(parts)) { 144 msg_display(MSG_wmbrfail); 145 process_menu(MENU_ok, NULL); 146 return false; 147 } 148 return true; 149 } 150 151 /* 152 * hook called after writing disklabel to new target disk. 153 */ 154 bool 155 md_post_disklabel(struct install_partition_desc *install, 156 struct disk_partitions *parts) 157 { 158 return true; 159 } 160 161 /* 162 * hook called after upgrade() or install() has finished setting 163 * up the target disk but immediately before the user is given the 164 * ``disks are now set up'' message. 165 */ 166 int 167 md_post_newfs(struct install_partition_desc *install) 168 { 169 static const char *kernels[] = { 170 "vmlinux-nfsroot.gz", 171 "vmlinux.gz", 172 "vmlinux_RAQ.gz", 173 "vmlinux_raq-2800.gz" 174 }; 175 static const char *bootfile = "boot.gz"; 176 char bootdir[64]; 177 unsigned int i; 178 179 if (!nobootfs) { 180 msg_fmt_display(msg_string(MSG_copybootloader), "%s", 181 pm->diskdev); 182 183 snprintf(bootdir, sizeof(bootdir), "%s/boot", 184 target_expand(PART_BOOT_MOUNT)); 185 run_program(0, "/bin/mkdir -p %s", bootdir); 186 run_program(0, "/bin/cp /usr/mdec/boot %s", bootdir); 187 run_program(0, "/bin/rm -f %s/%s", bootdir, bootfile); 188 run_program(0, "/usr/bin/gzip -9 %s/boot", bootdir); 189 for (i = 0; i < __arraycount(kernels); i++) 190 run_program(0, "/bin/ln -fs %s %s/%s", 191 bootfile, bootdir, kernels[i]); 192 } 193 194 return 0; 195 } 196 197 int 198 md_post_extract(struct install_partition_desc *install) 199 { 200 return 0; 201 } 202 203 void 204 md_cleanup_install(struct install_partition_desc *install) 205 { 206 #ifndef DEBUG 207 enable_rc_conf(); 208 #endif 209 } 210 211 int 212 md_pre_update(struct install_partition_desc *install) 213 { 214 size_t i; 215 216 /* 217 * Verify the msdos partition exists and is big enough. 218 */ 219 for (i = 0; i < install->num; i++) { 220 if (install->infos[i].fs_type != PART_BOOT_TYPE) 221 continue; 222 if (install->infos[i].size/512 >= PART_BOOT_MIN) 223 break; 224 msg_display(MSG_boottoosmall); 225 msg_fmt_display_add(MSG_nobootpart, "%d", 0); 226 if (!ask_yesno(NULL)) 227 return false; 228 nobootfs = 1; 229 break; 230 } 231 232 if (md_check_partitions(install) == 0) 233 nobootfs = 1; 234 235 return 1; 236 } 237 238 /* Upgrade support */ 239 int 240 md_update(struct install_partition_desc *install) 241 { 242 md_post_newfs(install); 243 return 1; 244 } 245 246 int 247 md_check_mbr(struct disk_partitions *parts, mbr_info_t *mbri, bool quiet) 248 { 249 mbr_info_t *ext; 250 struct mbr_partition *part; 251 int i; 252 253 for (ext = mbri; ext; ext = ext->extended) { 254 part = ext->mbr.mbr_parts; 255 for (i = 0; i < MBR_PART_COUNT; part++, i++) { 256 if (part->mbrp_type == MBR_PTYPE_LNXEXT2) { 257 pm->bootstart = part->mbrp_start; 258 pm->bootsize = part->mbrp_size; 259 break; 260 } 261 } 262 } 263 if (pm->bootsize < (PART_BOOT_MIN / 512)) { 264 if (quiet) 265 return 0; 266 msg_display(MSG_boottoosmall); 267 return ask_reedit(parts); 268 } 269 if (pm->bootstart == 0 || pm->bootsize == 0) { 270 if (quiet) 271 return 0; 272 msg_display(MSG_nobootpart); 273 return ask_reedit(parts); 274 } 275 return 2; 276 } 277 278 bool 279 md_parts_use_wholedisk(struct disk_partitions *parts) 280 { 281 struct disk_part_info boot_part = { 282 .size = PART_BOOT / 512, 283 .fs_type = PART_BOOT_TYPE, 284 .fs_sub_type = MBR_PTYPE_LNXEXT2, 285 .last_mounted = PART_BOOT_MOUNT, 286 }; 287 288 boot_part.nat_type = parts->pscheme->get_fs_part_type( 289 PT_root, boot_part.fs_type, boot_part.fs_sub_type); 290 291 return parts_use_wholedisk(parts, 1, &boot_part); 292 } 293 294 int 295 md_pre_mount(struct install_partition_desc *install, size_t ndx) 296 { 297 return 0; 298 } 299 300 bool 301 md_mbr_update_check(struct disk_partitions *parts, mbr_info_t *mbri) 302 { 303 return false; /* no change, no need to write back */ 304 } 305 306 #ifdef HAVE_GPT 307 bool 308 md_gpt_post_write(struct disk_partitions *parts, part_id root_id, 309 bool root_is_new, part_id efi_id, bool efi_is_new) 310 { 311 /* no GPT boot support, nothing needs to be done here */ 312 return true; 313 } 314 #endif 315