md.c revision 1.2.2.2
1 1.2.2.2 tls /* $NetBSD: md.c,v 1.2.2.2 2014/08/10 07:00:26 tls Exp $ */ 2 1.2.2.2 tls 3 1.2.2.2 tls /* 4 1.2.2.2 tls * Copyright 1997 Piermont Information Systems Inc. 5 1.2.2.2 tls * All rights reserved. 6 1.2.2.2 tls * 7 1.2.2.2 tls * Based on code written by Philip A. Nelson for Piermont Information 8 1.2.2.2 tls * Systems Inc. 9 1.2.2.2 tls * 10 1.2.2.2 tls * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 tls * modification, are permitted provided that the following conditions 12 1.2.2.2 tls * are met: 13 1.2.2.2 tls * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 tls * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 tls * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 tls * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 tls * documentation and/or other materials provided with the distribution. 18 1.2.2.2 tls * 3. The name of Piermont Information Systems Inc. may not be used to endorse 19 1.2.2.2 tls * or promote products derived from this software without specific prior 20 1.2.2.2 tls * written permission. 21 1.2.2.2 tls * 22 1.2.2.2 tls * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS'' 23 1.2.2.2 tls * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 1.2.2.2 tls * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 1.2.2.2 tls * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE 26 1.2.2.2 tls * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 1.2.2.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 1.2.2.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 1.2.2.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 1.2.2.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 1.2.2.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 1.2.2.2 tls * THE POSSIBILITY OF SUCH DAMAGE. 33 1.2.2.2 tls */ 34 1.2.2.2 tls 35 1.2.2.2 tls /* md.c -- i386 machine specific routines - also used by amd64 */ 36 1.2.2.2 tls 37 1.2.2.2 tls #include <sys/param.h> 38 1.2.2.2 tls #include <sys/sysctl.h> 39 1.2.2.2 tls #include <sys/exec.h> 40 1.2.2.2 tls #include <sys/utsname.h> 41 1.2.2.2 tls #include <sys/types.h> 42 1.2.2.2 tls #include <sys/stat.h> 43 1.2.2.2 tls #include <machine/cpu.h> 44 1.2.2.2 tls #include <stdio.h> 45 1.2.2.2 tls #include <stddef.h> 46 1.2.2.2 tls #include <util.h> 47 1.2.2.2 tls #include <dirent.h> 48 1.2.2.2 tls #include <termios.h> 49 1.2.2.2 tls 50 1.2.2.2 tls #include "defs.h" 51 1.2.2.2 tls #include "md.h" 52 1.2.2.2 tls #include "endian.h" 53 1.2.2.2 tls #include "msg_defs.h" 54 1.2.2.2 tls #include "menu_defs.h" 55 1.2.2.2 tls 56 1.2.2.2 tls #ifdef NO_LBA_READS /* for testing */ 57 1.2.2.2 tls #undef BIFLAG_EXTINT13 58 1.2.2.2 tls #define BIFLAG_EXTINT13 0 59 1.2.2.2 tls #endif 60 1.2.2.2 tls 61 1.2.2.2 tls static struct biosdisk_info *biosdisk = NULL; 62 1.2.2.2 tls 63 1.2.2.2 tls /* prototypes */ 64 1.2.2.2 tls 65 1.2.2.2 tls static int get_bios_info(char *); 66 1.2.2.2 tls static int mbr_root_above_chs(void); 67 1.2.2.2 tls static void md_upgrade_mbrtype(void); 68 1.2.2.2 tls static int md_read_bootcode(const char *, struct mbr_sector *); 69 1.2.2.2 tls static unsigned int get_bootmodel(void); 70 1.2.2.2 tls 71 1.2.2.2 tls void 72 1.2.2.2 tls md_init(void) 73 1.2.2.2 tls { 74 1.2.2.2 tls } 75 1.2.2.2 tls 76 1.2.2.2 tls void 77 1.2.2.2 tls md_init_set_status(int flags) 78 1.2.2.2 tls { 79 1.2.2.2 tls (void)flags; 80 1.2.2.2 tls 81 1.2.2.2 tls /* Default to install same type of kernel as we are running */ 82 1.2.2.2 tls set_kernel_set(get_bootmodel()); 83 1.2.2.2 tls } 84 1.2.2.2 tls 85 1.2.2.2 tls int 86 1.2.2.2 tls md_get_info(void) 87 1.2.2.2 tls { 88 1.2.2.2 tls mbr_info_t *ext; 89 1.2.2.2 tls struct mbr_partition *p; 90 1.2.2.2 tls const char *bootcode; 91 1.2.2.2 tls int i; 92 1.2.2.2 tls int names, fl, ofl; 93 1.2.2.2 tls #define ACTIVE_FOUND 0x0100 94 1.2.2.2 tls #define NETBSD_ACTIVE 0x0200 95 1.2.2.2 tls #define NETBSD_NAMED 0x0400 96 1.2.2.2 tls #define ACTIVE_NAMED 0x0800 97 1.2.2.2 tls 98 1.2.2.2 tls if (pm->no_mbr) 99 1.2.2.2 tls return 1; 100 1.2.2.2 tls 101 1.2.2.2 tls if (read_mbr(pm->diskdev, &mbr) < 0) 102 1.2.2.2 tls memset(&mbr.mbr, 0, sizeof mbr.mbr - 2); 103 1.2.2.2 tls get_bios_info(pm->diskdev); 104 1.2.2.2 tls 105 1.2.2.2 tls edit: 106 1.2.2.2 tls if (edit_mbr(&mbr) == 0) 107 1.2.2.2 tls return 0; 108 1.2.2.2 tls 109 1.2.2.2 tls root_limit = 0; 110 1.2.2.2 tls if (biosdisk != NULL && (biosdisk->bi_flags & BIFLAG_EXTINT13) == 0) { 111 1.2.2.2 tls if (mbr_root_above_chs()) { 112 1.2.2.2 tls msg_display(MSG_partabovechs); 113 1.2.2.2 tls process_menu(MENU_noyes, NULL); 114 1.2.2.2 tls if (!yesno) 115 1.2.2.2 tls goto edit; 116 1.2.2.2 tls /* The user is shooting themselves in the foot here...*/ 117 1.2.2.2 tls } else 118 1.2.2.2 tls root_limit = bcyl * bhead * bsec; 119 1.2.2.2 tls } 120 1.2.2.2 tls 121 1.2.2.2 tls /* 122 1.2.2.2 tls * Ensure the install partition (at sector pm->ptstart) and the active 123 1.2.2.2 tls * partition are bootable. 124 1.2.2.2 tls * Determine whether the bootselect code is needed. 125 1.2.2.2 tls * Note that MBR_BS_NEWMBR is always set, so we ignore it! 126 1.2.2.2 tls */ 127 1.2.2.2 tls fl = 0; 128 1.2.2.2 tls names = 0; 129 1.2.2.2 tls for (ext = &mbr; ext != NULL; ext = ext->extended) { 130 1.2.2.2 tls p = ext->mbr.mbr_parts; 131 1.2.2.2 tls for (i = 0; i < MBR_PART_COUNT; p++, i++) { 132 1.2.2.2 tls if (p->mbrp_flag == MBR_PFLAG_ACTIVE) { 133 1.2.2.2 tls fl |= ACTIVE_FOUND; 134 1.2.2.2 tls if (ext->sector + p->mbrp_start == pm->ptstart) 135 1.2.2.2 tls fl |= NETBSD_ACTIVE; 136 1.2.2.2 tls } 137 1.2.2.2 tls if (ext->mbrb.mbrbs_nametab[i][0] == 0) { 138 1.2.2.2 tls /* No bootmenu label... */ 139 1.2.2.2 tls if (ext->sector == 0) 140 1.2.2.2 tls continue; 141 1.2.2.2 tls if (ext->sector + p->mbrp_start == pm->ptstart) 142 1.2.2.2 tls /* 143 1.2.2.2 tls * Have installed into an extended ptn 144 1.2.2.2 tls * force name & bootsel... 145 1.2.2.2 tls */ 146 1.2.2.2 tls names++; 147 1.2.2.2 tls continue; 148 1.2.2.2 tls } 149 1.2.2.2 tls /* Partition has a bootmenu label... */ 150 1.2.2.2 tls if (ext->sector != 0) 151 1.2.2.2 tls fl |= MBR_BS_EXTLBA; 152 1.2.2.2 tls if (ext->sector + p->mbrp_start == pm->ptstart) 153 1.2.2.2 tls fl |= NETBSD_NAMED; 154 1.2.2.2 tls else if (p->mbrp_flag == MBR_PFLAG_ACTIVE) 155 1.2.2.2 tls fl |= ACTIVE_NAMED; 156 1.2.2.2 tls else 157 1.2.2.2 tls names++; 158 1.2.2.2 tls } 159 1.2.2.2 tls } 160 1.2.2.2 tls if (!(fl & ACTIVE_FOUND)) 161 1.2.2.2 tls fl |= NETBSD_ACTIVE; 162 1.2.2.2 tls if (fl & NETBSD_NAMED && fl & NETBSD_ACTIVE) 163 1.2.2.2 tls fl |= ACTIVE_NAMED; 164 1.2.2.2 tls 165 1.2.2.2 tls if ((names > 0 || !(fl & NETBSD_ACTIVE)) && 166 1.2.2.2 tls (!(fl & NETBSD_NAMED) || !(fl & ACTIVE_NAMED))) { 167 1.2.2.2 tls /* 168 1.2.2.2 tls * There appear to be multiple bootable partitions, but they 169 1.2.2.2 tls * don't all have bootmenu texts. 170 1.2.2.2 tls */ 171 1.2.2.2 tls msg_display(MSG_missing_bootmenu_text); 172 1.2.2.2 tls process_menu(MENU_yesno, NULL); 173 1.2.2.2 tls if (yesno) 174 1.2.2.2 tls goto edit; 175 1.2.2.2 tls } 176 1.2.2.2 tls 177 1.2.2.2 tls if ((fl & MBR_BS_EXTLBA) && 178 1.2.2.2 tls (biosdisk == NULL || !(biosdisk->bi_flags & BIFLAG_EXTINT13))) { 179 1.2.2.2 tls /* Need unsupported LBA reads to read boot sectors */ 180 1.2.2.2 tls msg_display(MSG_no_extended_bootmenu); 181 1.2.2.2 tls process_menu(MENU_noyes, NULL); 182 1.2.2.2 tls if (!yesno) 183 1.2.2.2 tls goto edit; 184 1.2.2.2 tls } 185 1.2.2.2 tls 186 1.2.2.2 tls /* Sort out the name of the mbr code we need */ 187 1.2.2.2 tls if (names > 0 || fl & (NETBSD_NAMED | ACTIVE_NAMED)) { 188 1.2.2.2 tls /* Need bootselect code */ 189 1.2.2.2 tls fl |= MBR_BS_ACTIVE; 190 1.2.2.2 tls bootcode = fl & MBR_BS_EXTLBA ? _PATH_BOOTEXT : _PATH_BOOTSEL; 191 1.2.2.2 tls } else 192 1.2.2.2 tls bootcode = _PATH_MBR; 193 1.2.2.2 tls 194 1.2.2.2 tls fl &= MBR_BS_ACTIVE | MBR_BS_EXTLBA; 195 1.2.2.2 tls 196 1.2.2.2 tls /* Look at what is installed */ 197 1.2.2.2 tls ofl = mbr.mbrb.mbrbs_flags; 198 1.2.2.2 tls if (ofl == 0) { 199 1.2.2.2 tls /* Check there is some bootcode at all... */ 200 1.2.2.2 tls if (mbr.mbr.mbr_magic != htole16(MBR_MAGIC) || 201 1.2.2.2 tls mbr.mbr.mbr_jmpboot[0] == 0 || 202 1.2.2.2 tls mbr_root_above_chs()) 203 1.2.2.2 tls /* Existing won't do, force update */ 204 1.2.2.2 tls fl |= MBR_BS_NEWMBR; 205 1.2.2.2 tls } 206 1.2.2.2 tls ofl = mbr.oflags & (MBR_BS_ACTIVE | MBR_BS_EXTLBA); 207 1.2.2.2 tls 208 1.2.2.2 tls if (fl & ~ofl || (fl == 0 && ofl & MBR_BS_ACTIVE)) { 209 1.2.2.2 tls /* Existing boot code isn't the right one... */ 210 1.2.2.2 tls if (fl & MBR_BS_ACTIVE) 211 1.2.2.2 tls msg_display(MSG_installbootsel); 212 1.2.2.2 tls else 213 1.2.2.2 tls msg_display(MSG_installmbr); 214 1.2.2.2 tls } else 215 1.2.2.2 tls /* Existing code would (probably) be ok */ 216 1.2.2.2 tls msg_display(MSG_updatembr); 217 1.2.2.2 tls 218 1.2.2.2 tls process_menu(MENU_yesno, NULL); 219 1.2.2.2 tls if (!yesno) 220 1.2.2.2 tls /* User doesn't want to update mbr code */ 221 1.2.2.2 tls return 1; 222 1.2.2.2 tls 223 1.2.2.2 tls if (md_read_bootcode(bootcode, &mbr.mbr) == 0) 224 1.2.2.2 tls /* update suceeded - to memory copy */ 225 1.2.2.2 tls return 1; 226 1.2.2.2 tls 227 1.2.2.2 tls /* This shouldn't happen since the files are in the floppy fs... */ 228 1.2.2.2 tls msg_display("Can't find %s", bootcode); 229 1.2.2.2 tls process_menu(MENU_yesno, NULL); 230 1.2.2.2 tls 231 1.2.2.2 tls return 1; 232 1.2.2.2 tls } 233 1.2.2.2 tls 234 1.2.2.2 tls /* 235 1.2.2.2 tls * md back-end code for menu-driven BSD disklabel editor. 236 1.2.2.2 tls */ 237 1.2.2.2 tls int 238 1.2.2.2 tls md_make_bsd_partitions(void) 239 1.2.2.2 tls { 240 1.2.2.2 tls return make_bsd_partitions(); 241 1.2.2.2 tls } 242 1.2.2.2 tls 243 1.2.2.2 tls /* 244 1.2.2.2 tls * any additional partition validation 245 1.2.2.2 tls */ 246 1.2.2.2 tls int 247 1.2.2.2 tls md_check_partitions(void) 248 1.2.2.2 tls { 249 1.2.2.2 tls int rval; 250 1.2.2.2 tls char *bootxx; 251 1.2.2.2 tls 252 1.2.2.2 tls /* check we have boot code for the root partition type */ 253 1.2.2.2 tls bootxx = bootxx_name(); 254 1.2.2.2 tls rval = access(bootxx, R_OK); 255 1.2.2.2 tls free(bootxx); 256 1.2.2.2 tls if (rval == 0) 257 1.2.2.2 tls return 1; 258 1.2.2.2 tls process_menu(MENU_ok, deconst(MSG_No_Bootcode)); 259 1.2.2.2 tls return 0; 260 1.2.2.2 tls } 261 1.2.2.2 tls 262 1.2.2.2 tls /* 263 1.2.2.2 tls * hook called before writing new disklabel. 264 1.2.2.2 tls */ 265 1.2.2.2 tls int 266 1.2.2.2 tls md_pre_disklabel(void) 267 1.2.2.2 tls { 268 1.2.2.2 tls if (pm->no_mbr) 269 1.2.2.2 tls return 0; 270 1.2.2.2 tls 271 1.2.2.2 tls msg_display(MSG_dofdisk); 272 1.2.2.2 tls 273 1.2.2.2 tls /* write edited MBR onto disk. */ 274 1.2.2.2 tls if (write_mbr(pm->diskdev, &mbr, 1) != 0) { 275 1.2.2.2 tls msg_display(MSG_wmbrfail); 276 1.2.2.2 tls process_menu(MENU_ok, NULL); 277 1.2.2.2 tls return 1; 278 1.2.2.2 tls } 279 1.2.2.2 tls return 0; 280 1.2.2.2 tls } 281 1.2.2.2 tls 282 1.2.2.2 tls /* 283 1.2.2.2 tls * hook called after writing disklabel to new target disk. 284 1.2.2.2 tls */ 285 1.2.2.2 tls int 286 1.2.2.2 tls md_post_disklabel(void) 287 1.2.2.2 tls { 288 1.2.2.2 tls if (get_ramsize() <= 32) 289 1.2.2.2 tls set_swap(pm->diskdev, pm->bsdlabel); 290 1.2.2.2 tls 291 1.2.2.2 tls return 0; 292 1.2.2.2 tls } 293 1.2.2.2 tls 294 1.2.2.2 tls /* 295 1.2.2.2 tls * hook called after upgrade() or install() has finished setting 296 1.2.2.2 tls * up the target disk but immediately before the user is given the 297 1.2.2.2 tls * ``disks are now set up'' message. 298 1.2.2.2 tls */ 299 1.2.2.2 tls int 300 1.2.2.2 tls md_post_newfs(void) 301 1.2.2.2 tls { 302 1.2.2.2 tls int ret; 303 1.2.2.2 tls size_t len; 304 1.2.2.2 tls int td, sd; 305 1.2.2.2 tls char bootxx[8192 + 4]; 306 1.2.2.2 tls char *bootxx_filename; 307 1.2.2.2 tls /* 308 1.2.2.2 tls * XXX - should either find some way to pull this automatically 309 1.2.2.2 tls * from sys/arch/i386/stand/lib/boot_params.S, or just bite the 310 1.2.2.2 tls * bullet and include /sbin/installboot on the ramdisk 311 1.2.2.2 tls */ 312 1.2.2.2 tls static struct x86_boot_params boottype = 313 1.2.2.2 tls {sizeof boottype, 0, 5, 0, 9600, { '\0' }, "", 0}; 314 1.2.2.2 tls static int conmib[] = {CTL_MACHDEP, CPU_CONSDEV}; 315 1.2.2.2 tls struct termios t; 316 1.2.2.2 tls dev_t condev; 317 1.2.2.2 tls #define bp (*(struct x86_boot_params *)(bootxx + 512 * 2 + 8)) 318 1.2.2.2 tls 319 1.2.2.2 tls /* 320 1.2.2.2 tls * Get console device, should either be ttyE0 or tty0n. 321 1.2.2.2 tls * Too hard to double check, so just 'know' the device numbers. 322 1.2.2.2 tls */ 323 1.2.2.2 tls len = sizeof condev; 324 1.2.2.2 tls if (sysctl(conmib, nelem(conmib), &condev, &len, NULL, 0) != -1 325 1.2.2.2 tls && (condev & ~3) == 0x800) { 326 1.2.2.2 tls /* Motherboard serial port */ 327 1.2.2.2 tls boottype.bp_consdev = (condev & 3) + 1; 328 1.2.2.2 tls /* Defaulting the baud rate to that of stdin should suffice */ 329 1.2.2.2 tls if (tcgetattr(0, &t) != -1) 330 1.2.2.2 tls boottype.bp_conspeed = t.c_ispeed; 331 1.2.2.2 tls } 332 1.2.2.2 tls 333 1.2.2.2 tls process_menu(MENU_getboottype, &boottype); 334 1.2.2.2 tls msg_display(MSG_dobootblks, pm->diskdev); 335 1.2.2.2 tls if (bp.bp_consdev == ~0u) 336 1.2.2.2 tls return 0; 337 1.2.2.2 tls 338 1.2.2.2 tls ret = cp_to_target("/usr/mdec/boot", "/boot"); 339 1.2.2.2 tls if (ret) 340 1.2.2.2 tls return ret; 341 1.2.2.2 tls 342 1.2.2.2 tls /* Copy bootstrap in by hand - /sbin/installboot explodes ramdisks */ 343 1.2.2.2 tls ret = 1; 344 1.2.2.2 tls 345 1.2.2.2 tls snprintf(bootxx, sizeof bootxx, "/dev/r%s%c", pm->diskdev, 'a' + pm->rootpart); 346 1.2.2.2 tls td = open(bootxx, O_RDWR, 0); 347 1.2.2.2 tls bootxx_filename = bootxx_name(); 348 1.2.2.2 tls if (bootxx_filename != NULL) { 349 1.2.2.2 tls sd = open(bootxx_filename, O_RDONLY); 350 1.2.2.2 tls free(bootxx_filename); 351 1.2.2.2 tls } else 352 1.2.2.2 tls sd = -1; 353 1.2.2.2 tls if (td == -1 || sd == -1) 354 1.2.2.2 tls goto bad_bootxx; 355 1.2.2.2 tls len = read(sd, bootxx, sizeof bootxx); 356 1.2.2.2 tls if (len < 2048 || len > 8192) 357 1.2.2.2 tls goto bad_bootxx; 358 1.2.2.2 tls 359 1.2.2.2 tls if (*(uint32_t *)(bootxx + 512 * 2 + 4) != X86_BOOT_MAGIC_1) 360 1.2.2.2 tls goto bad_bootxx; 361 1.2.2.2 tls 362 1.2.2.2 tls boottype.bp_length = bp.bp_length; 363 1.2.2.2 tls memcpy(&bp, &boottype, min(boottype.bp_length, sizeof boottype)); 364 1.2.2.2 tls 365 1.2.2.2 tls if (pwrite(td, bootxx, 512, 0) != 512) 366 1.2.2.2 tls goto bad_bootxx; 367 1.2.2.2 tls len -= 512 * 2; 368 1.2.2.2 tls if (pwrite(td, bootxx + 512 * 2, len, 2 * (off_t)512) - len != 0) 369 1.2.2.2 tls goto bad_bootxx; 370 1.2.2.2 tls ret = 0; 371 1.2.2.2 tls 372 1.2.2.2 tls bad_bootxx: 373 1.2.2.2 tls close(td); 374 1.2.2.2 tls close(sd); 375 1.2.2.2 tls 376 1.2.2.2 tls return ret; 377 1.2.2.2 tls } 378 1.2.2.2 tls 379 1.2.2.2 tls int 380 1.2.2.2 tls md_post_extract(void) 381 1.2.2.2 tls { 382 1.2.2.2 tls return 0; 383 1.2.2.2 tls } 384 1.2.2.2 tls 385 1.2.2.2 tls void 386 1.2.2.2 tls md_cleanup_install(void) 387 1.2.2.2 tls { 388 1.2.2.2 tls #ifndef DEBUG 389 1.2.2.2 tls enable_rc_conf(); 390 1.2.2.2 tls add_rc_conf("wscons=YES\n"); 391 1.2.2.2 tls 392 1.2.2.2 tls # if defined(__i386__) && defined(SET_KERNEL_TINY) 393 1.2.2.2 tls /* 394 1.2.2.2 tls * For GENERIC_TINY, do not enable any extra screens or wsmux. 395 1.2.2.2 tls * Otherwise, run getty on 4 VTs. 396 1.2.2.2 tls */ 397 1.2.2.2 tls if (get_kernel_set() == SET_KERNEL_TINY) 398 1.2.2.2 tls run_program(RUN_CHROOT, 399 1.2.2.2 tls "sed -an -e '/^screen/s/^/#/;/^mux/s/^/#/;" 400 1.2.2.2 tls "H;$!d;g;w /etc/wscons.conf' /etc/wscons.conf"); 401 1.2.2.2 tls else 402 1.2.2.2 tls # endif 403 1.2.2.2 tls run_program(RUN_CHROOT, 404 1.2.2.2 tls "sed -an -e '/^ttyE[1-9]/s/off/on/;" 405 1.2.2.2 tls "H;$!d;g;w /etc/ttys' /etc/ttys"); 406 1.2.2.2 tls 407 1.2.2.2 tls #endif 408 1.2.2.2 tls } 409 1.2.2.2 tls 410 1.2.2.2 tls int 411 1.2.2.2 tls md_pre_update(void) 412 1.2.2.2 tls { 413 1.2.2.2 tls if (get_ramsize() <= 8) 414 1.2.2.2 tls set_swap(pm->diskdev, NULL); 415 1.2.2.2 tls return 1; 416 1.2.2.2 tls } 417 1.2.2.2 tls 418 1.2.2.2 tls /* Upgrade support */ 419 1.2.2.2 tls int 420 1.2.2.2 tls md_update(void) 421 1.2.2.2 tls { 422 1.2.2.2 tls md_post_newfs(); 423 1.2.2.2 tls md_upgrade_mbrtype(); 424 1.2.2.2 tls return 1; 425 1.2.2.2 tls } 426 1.2.2.2 tls 427 1.2.2.2 tls int 428 1.2.2.2 tls md_check_mbr(mbr_info_t *mbri) 429 1.2.2.2 tls { 430 1.2.2.2 tls return 2; 431 1.2.2.2 tls } 432 1.2.2.2 tls 433 1.2.2.2 tls int 434 1.2.2.2 tls md_mbr_use_wholedisk(mbr_info_t *mbri) 435 1.2.2.2 tls { 436 1.2.2.2 tls return mbr_use_wholedisk(mbri); 437 1.2.2.2 tls } 438 1.2.2.2 tls 439 1.2.2.2 tls static int 440 1.2.2.2 tls get_bios_info(char *dev) 441 1.2.2.2 tls { 442 1.2.2.2 tls static struct disklist *disklist = NULL; 443 1.2.2.2 tls static int mib[2] = {CTL_MACHDEP, CPU_DISKINFO}; 444 1.2.2.2 tls int i; 445 1.2.2.2 tls size_t len; 446 1.2.2.2 tls struct biosdisk_info *bip; 447 1.2.2.2 tls struct nativedisk_info *nip = NULL, *nat; 448 1.2.2.2 tls int cyl, head; 449 1.2.2.2 tls daddr_t sec; 450 1.2.2.2 tls 451 1.2.2.2 tls if (disklist == NULL) { 452 1.2.2.2 tls if (sysctl(mib, 2, NULL, &len, NULL, 0) < 0) 453 1.2.2.2 tls goto nogeom; 454 1.2.2.2 tls disklist = malloc(len); 455 1.2.2.2 tls if (disklist == NULL) { 456 1.2.2.2 tls fprintf(stderr, "Out of memory\n"); 457 1.2.2.2 tls return -1; 458 1.2.2.2 tls } 459 1.2.2.2 tls sysctl(mib, 2, disklist, &len, NULL, 0); 460 1.2.2.2 tls } 461 1.2.2.2 tls 462 1.2.2.2 tls for (i = 0; i < disklist->dl_nnativedisks; i++) { 463 1.2.2.2 tls nat = &disklist->dl_nativedisks[i]; 464 1.2.2.2 tls if (!strcmp(dev, nat->ni_devname)) { 465 1.2.2.2 tls nip = nat; 466 1.2.2.2 tls break; 467 1.2.2.2 tls } 468 1.2.2.2 tls } 469 1.2.2.2 tls if (nip == NULL || nip->ni_nmatches == 0) { 470 1.2.2.2 tls nogeom: 471 1.2.2.2 tls if (nip != NULL) 472 1.2.2.2 tls msg_display(MSG_nobiosgeom, pm->dlcyl, pm->dlhead, pm->dlsec); 473 1.2.2.2 tls if (guess_biosgeom_from_mbr(&mbr, &cyl, &head, &sec) >= 0 474 1.2.2.2 tls && nip != NULL) 475 1.2.2.2 tls msg_display_add(MSG_biosguess, cyl, head, sec); 476 1.2.2.2 tls biosdisk = NULL; 477 1.2.2.2 tls } else { 478 1.2.2.2 tls guess_biosgeom_from_mbr(&mbr, &cyl, &head, &sec); 479 1.2.2.2 tls if (nip->ni_nmatches == 1) { 480 1.2.2.2 tls bip = &disklist->dl_biosdisks[nip->ni_biosmatches[0]]; 481 1.2.2.2 tls msg_display(MSG_onebiosmatch); 482 1.2.2.2 tls msg_table_add(MSG_onebiosmatch_header); 483 1.2.2.2 tls msg_table_add(MSG_onebiosmatch_row, bip->bi_dev, 484 1.2.2.2 tls bip->bi_cyl, bip->bi_head, bip->bi_sec, 485 1.2.2.2 tls (unsigned)bip->bi_lbasecs, 486 1.2.2.2 tls (unsigned)(bip->bi_lbasecs / (1000000000 / 512))); 487 1.2.2.2 tls msg_display_add(MSG_biosgeom_advise); 488 1.2.2.2 tls biosdisk = bip; 489 1.2.2.2 tls process_menu(MENU_biosonematch, &biosdisk); 490 1.2.2.2 tls } else { 491 1.2.2.2 tls msg_display(MSG_biosmultmatch); 492 1.2.2.2 tls msg_table_add(MSG_biosmultmatch_header); 493 1.2.2.2 tls for (i = 0; i < nip->ni_nmatches; i++) { 494 1.2.2.2 tls bip = &disklist->dl_biosdisks[ 495 1.2.2.2 tls nip->ni_biosmatches[i]]; 496 1.2.2.2 tls msg_table_add(MSG_biosmultmatch_row, i, 497 1.2.2.2 tls bip->bi_dev, bip->bi_cyl, bip->bi_head, 498 1.2.2.2 tls bip->bi_sec, (unsigned)bip->bi_lbasecs, 499 1.2.2.2 tls (unsigned)bip->bi_lbasecs/(1000000000/512)); 500 1.2.2.2 tls } 501 1.2.2.2 tls process_menu(MENU_biosmultmatch, &i); 502 1.2.2.2 tls if (i == -1) 503 1.2.2.2 tls biosdisk = NULL; 504 1.2.2.2 tls else 505 1.2.2.2 tls biosdisk = &disklist->dl_biosdisks[ 506 1.2.2.2 tls nip->ni_biosmatches[i]]; 507 1.2.2.2 tls } 508 1.2.2.2 tls } 509 1.2.2.2 tls if (biosdisk == NULL) { 510 1.2.2.2 tls if (nip != NULL) { 511 1.2.2.2 tls set_bios_geom(cyl, head, sec); 512 1.2.2.2 tls } else { 513 1.2.2.2 tls bcyl = cyl; 514 1.2.2.2 tls bhead = head; 515 1.2.2.2 tls bsec = sec; 516 1.2.2.2 tls } 517 1.2.2.2 tls } else { 518 1.2.2.2 tls bcyl = biosdisk->bi_cyl; 519 1.2.2.2 tls bhead = biosdisk->bi_head; 520 1.2.2.2 tls bsec = biosdisk->bi_sec; 521 1.2.2.2 tls } 522 1.2.2.2 tls return 0; 523 1.2.2.2 tls } 524 1.2.2.2 tls 525 1.2.2.2 tls static int 526 1.2.2.2 tls mbr_root_above_chs(void) 527 1.2.2.2 tls { 528 1.2.2.2 tls return pm->ptstart + DEFROOTSIZE * (MEG / 512) >= bcyl * bhead * bsec; 529 1.2.2.2 tls } 530 1.2.2.2 tls 531 1.2.2.2 tls static void 532 1.2.2.2 tls md_upgrade_mbrtype(void) 533 1.2.2.2 tls { 534 1.2.2.2 tls struct mbr_partition *mbrp; 535 1.2.2.2 tls int i, netbsdpart = -1, oldbsdpart = -1, oldbsdcount = 0; 536 1.2.2.2 tls 537 1.2.2.2 tls if (pm->no_mbr) 538 1.2.2.2 tls return; 539 1.2.2.2 tls 540 1.2.2.2 tls if (read_mbr(pm->diskdev, &mbr) < 0) 541 1.2.2.2 tls return; 542 1.2.2.2 tls 543 1.2.2.2 tls mbrp = &mbr.mbr.mbr_parts[0]; 544 1.2.2.2 tls 545 1.2.2.2 tls for (i = 0; i < MBR_PART_COUNT; i++) { 546 1.2.2.2 tls if (mbrp[i].mbrp_type == MBR_PTYPE_386BSD) { 547 1.2.2.2 tls oldbsdpart = i; 548 1.2.2.2 tls oldbsdcount++; 549 1.2.2.2 tls } else if (mbrp[i].mbrp_type == MBR_PTYPE_NETBSD) 550 1.2.2.2 tls netbsdpart = i; 551 1.2.2.2 tls } 552 1.2.2.2 tls 553 1.2.2.2 tls if (netbsdpart == -1 && oldbsdcount == 1) { 554 1.2.2.2 tls mbrp[oldbsdpart].mbrp_type = MBR_PTYPE_NETBSD; 555 1.2.2.2 tls write_mbr(pm->diskdev, &mbr, 0); 556 1.2.2.2 tls } 557 1.2.2.2 tls } 558 1.2.2.2 tls 559 1.2.2.2 tls /* 560 1.2.2.2 tls * Read MBR code from a file. 561 1.2.2.2 tls * The existing partition table and bootselect configuration is kept. 562 1.2.2.2 tls */ 563 1.2.2.2 tls static int 564 1.2.2.2 tls md_read_bootcode(const char *path, struct mbr_sector *mbrs) 565 1.2.2.2 tls { 566 1.2.2.2 tls int fd; 567 1.2.2.2 tls struct stat st; 568 1.2.2.2 tls size_t len; 569 1.2.2.2 tls struct mbr_sector new_mbr; 570 1.2.2.2 tls uint32_t dsn; 571 1.2.2.2 tls 572 1.2.2.2 tls fd = open(path, O_RDONLY); 573 1.2.2.2 tls if (fd < 0) 574 1.2.2.2 tls return -1; 575 1.2.2.2 tls 576 1.2.2.2 tls if (fstat(fd, &st) < 0 || st.st_size != sizeof *mbrs) { 577 1.2.2.2 tls close(fd); 578 1.2.2.2 tls return -1; 579 1.2.2.2 tls } 580 1.2.2.2 tls 581 1.2.2.2 tls if (read(fd, &new_mbr, sizeof new_mbr) != sizeof new_mbr) { 582 1.2.2.2 tls close(fd); 583 1.2.2.2 tls return -1; 584 1.2.2.2 tls } 585 1.2.2.2 tls close(fd); 586 1.2.2.2 tls 587 1.2.2.2 tls if (new_mbr.mbr_bootsel_magic != htole16(MBR_BS_MAGIC)) 588 1.2.2.2 tls return -1; 589 1.2.2.2 tls 590 1.2.2.2 tls if (mbrs->mbr_bootsel_magic == htole16(MBR_BS_MAGIC)) { 591 1.2.2.2 tls len = offsetof(struct mbr_sector, mbr_bootsel); 592 1.2.2.2 tls } else 593 1.2.2.2 tls len = offsetof(struct mbr_sector, mbr_parts); 594 1.2.2.2 tls 595 1.2.2.2 tls /* Preserve the 'drive serial number' - especially for Vista */ 596 1.2.2.2 tls dsn = mbrs->mbr_dsn; 597 1.2.2.2 tls memcpy(mbrs, &new_mbr, len); 598 1.2.2.2 tls mbrs->mbr_dsn = dsn; 599 1.2.2.2 tls 600 1.2.2.2 tls /* Keep flags from object file - indicate the properties */ 601 1.2.2.2 tls mbrs->mbr_bootsel.mbrbs_flags = new_mbr.mbr_bootsel.mbrbs_flags; 602 1.2.2.2 tls mbrs->mbr_magic = htole16(MBR_MAGIC); 603 1.2.2.2 tls 604 1.2.2.2 tls return 0; 605 1.2.2.2 tls } 606 1.2.2.2 tls 607 1.2.2.2 tls static unsigned int 608 1.2.2.2 tls get_bootmodel(void) 609 1.2.2.2 tls { 610 1.2.2.2 tls #if defined(__i386__) 611 1.2.2.2 tls struct utsname ut; 612 1.2.2.2 tls #ifdef DEBUG 613 1.2.2.2 tls char *envstr; 614 1.2.2.2 tls 615 1.2.2.2 tls envstr = getenv("BOOTMODEL"); 616 1.2.2.2 tls if (envstr != NULL) 617 1.2.2.2 tls return atoi(envstr); 618 1.2.2.2 tls #endif 619 1.2.2.2 tls 620 1.2.2.2 tls if (uname(&ut) < 0) 621 1.2.2.2 tls ut.version[0] = 0; 622 1.2.2.2 tls 623 1.2.2.2 tls #if defined(SET_KERNEL_TINY) 624 1.2.2.2 tls if (strstr(ut.version, "TINY") != NULL) 625 1.2.2.2 tls return SET_KERNEL_TINY; 626 1.2.2.2 tls #endif 627 1.2.2.2 tls #if defined(SET_KERNEL_PS2) 628 1.2.2.2 tls if (strstr(ut.version, "PS2") != NULL) 629 1.2.2.2 tls return SET_KERNEL_PS2; 630 1.2.2.2 tls #endif 631 1.2.2.2 tls #endif 632 1.2.2.2 tls return SET_KERNEL_GENERIC; 633 1.2.2.2 tls } 634 1.2.2.2 tls 635 1.2.2.2 tls 636 1.2.2.2 tls int 637 1.2.2.2 tls md_pre_mount() 638 1.2.2.2 tls { 639 1.2.2.2 tls return 0; 640 1.2.2.2 tls } 641
Indexes created Fri Oct 03 02:09:57 GMT 2025