1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 28 /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ 29 /* All Rights Reserved */ 30 31 /* Copyright (c) 1987, 1988 Microsoft Corporation */ 32 /* All Rights Reserved */ 33 34 /* 35 * PROGRAM: fdisk(1M) 36 * This program reads the partition table on the specified device and 37 * also reads the drive parameters. The user can perform various 38 * operations from a supplied menu or from the command line. Diagnostic 39 * options are also available. 40 */ 41 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 #include <errno.h> 47 #include <fcntl.h> 48 #include <ctype.h> 49 #include <sys/stat.h> 50 #include <sys/types.h> 51 #include <limits.h> 52 #include <sys/param.h> 53 #include <sys/systeminfo.h> 54 #include <sys/efi_partition.h> 55 #include <sys/byteorder.h> 56 #include <sys/systeminfo.h> 57 58 #include <sys/dktp/fdisk.h> 59 #include <sys/dkio.h> 60 #include <sys/vtoc.h> 61 62 #define CLR_SCR "[1;1H[0J" 63 #define CLR_LIN "[0K" 64 #define HOME "[1;1H[0K[2;1H[0K[3;1H[0K[4;1H[0K[5;1H[0K" \ 65 "[6;1H[0K[7;1H[0K[8;1H[0K[9;1H[0K[10;1H[0K[1;1H" 66 #define Q_LINE "[22;1H[0K[21;1H[0K[20;1H[0K" 67 #define W_LINE "[12;1H[0K[11;1H[0K" 68 #define E_LINE "[24;1H[0K[23;1H[0K" 69 #define M_LINE "[13;1H[0K[14;1H[0K[15;1H[0K[16;1H[0K[17;1H" \ 70 "[0K[18;1H[0K[19;1H[0K[13;1H" 71 #define T_LINE "[1;1H[0K" 72 73 #define DEFAULT_PATH "/dev/rdsk/" 74 75 /* XXX - should be in fdisk.h, used by sd as well */ 76 77 /* 78 * the MAX values are the maximum usable values for BIOS chs values 79 * The MAX_CYL value of 1022 is the maximum usable value 80 * the value of 1023 is a fence value, 81 * indicating no CHS geometry exists for the corresponding LBA value. 82 * HEAD range [ 0 .. MAX_HEAD ], so number of heads is (MAX_HEAD + 1) 83 * SECT range [ 1 .. MAX_SECT ], so number of sectors is (MAX_SECT) 84 */ 85 #define MAX_SECT (63) 86 #define MAX_CYL (1022) 87 #define MAX_HEAD (254) 88 89 #define DK_MAX_2TB UINT32_MAX /* Max # of sectors in 2TB */ 90 91 /* for clear_vtoc() */ 92 #define OLD 0 93 #define NEW 1 94 95 /* readvtoc/writevtoc return codes */ 96 #define VTOC_OK 0 /* Good VTOC */ 97 #define VTOC_INVAL 1 /* invalid VTOC */ 98 #define VTOC_NOTSUP 2 /* operation not supported - EFI label */ 99 #define VTOC_RWERR 3 /* couldn't read or write VTOC */ 100 101 /* 102 * Support for fdisk(1M) on the SPARC platform 103 * In order to convert little endian values to big endian for SPARC, 104 * byte/short and long values must be swapped. 105 * These swapping macros will be used to access information in the 106 * mboot and ipart structures. 107 */ 108 109 #ifdef sparc 110 #define les(val) ((((val)&0xFF)<<8)|(((val)>>8)&0xFF)) 111 #define lel(val) (((unsigned)(les((val)&0x0000FFFF))<<16) | \ 112 (les((unsigned)((val)&0xffff0000)>>16))) 113 #else 114 #define les(val) (val) 115 #define lel(val) (val) 116 #endif 117 118 #if defined(_SUNOS_VTOC_16) 119 #define VTOC_OFFSET 1 120 #elif defined(_SUNOS_VTOC_8) 121 #define VTOC_OFFSET 0 122 #else 123 #error No VTOC format defined. 124 #endif 125 126 static char Usage[] = "Usage: fdisk\n" 127 "[ -A id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect ]\n" 128 "[ -b masterboot ]\n" 129 "[ -D id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect ]\n" 130 "[ -F fdisk_file ] [ -h ] [ -o offset ] [ -P fill_patt ] [ -s size ]\n" 131 "[ -S geom_file ] [ [ -v ] -W { creat_fdisk_file | - } ]\n" 132 "[ -w | r | d | n | I | B | E | g | G | R | t | T ] rdevice"; 133 134 static char Usage1[] = " Partition options:\n" 135 " -A id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect\n" 136 " Create a partition with specific attributes:\n" 137 " id = system id number (fdisk.h) for the partition type\n" 138 " act = active partition flag (0 is off and 128 is on)\n" 139 " bhead = beginning head for start of partition\n" 140 " bsect = beginning sector for start of partition\n" 141 " bcyl = beginning cylinder for start of partition\n" 142 " ehead = ending head for end of partition\n" 143 " esect = ending sector for end of partition\n" 144 " ecyl = ending cylinder for end of partition\n" 145 " rsect = sector number from start of disk for\n" 146 " start of partition\n" 147 " numsect = partition size in sectors\n" 148 " -b master_boot\n" 149 " Use master_boot as the master boot file.\n" 150 " -B Create one Solaris partition that uses the entire disk.\n" 151 " -E Create one EFI partition that uses the entire disk.\n" 152 " -D id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect\n" 153 " Delete a partition. See attribute definitions for -A.\n" 154 " -F fdisk_file\n" 155 " Use fdisk_file to initialize on-line fdisk table.\n" 156 " -I Forego device checks. Generate a file image of what would go\n" 157 " on a disk using the geometry specified with the -S option.\n" 158 " -n Do not run in interactive mode.\n" 159 " -R Open the disk device as read-only.\n" 160 " -t Check and adjust VTOC to be consistent with fdisk table.\n" 161 " VTOC slices exceeding the partition size will be truncated.\n" 162 " -T Check and adjust VTOC to be consistent with fdisk table.\n" 163 " VTOC slices exceeding the partition size will be removed.\n" 164 " -W fdisk_file\n" 165 " Write on-disk table to fdisk_file.\n" 166 " -W - Write on-disk table to standard output.\n" 167 " -v Display virtual geometry. Must be used with the -W option.\n" 168 " Diagnostic options:\n" 169 " -d Activate debug information about progress.\n" 170 " -g Write label geometry to standard output:\n" 171 " PCYL number of physical cylinders\n" 172 " NCYL number of usable cylinders\n" 173 " ACYL number of alternate cylinders\n" 174 " BCYL cylinder offset\n" 175 " NHEADS number of heads\n" 176 " NSECTORS number of sectors per track\n" 177 " SECTSIZ size of a sector in bytes\n" 178 " -G Write physical geometry to standard output (see -g).\n" 179 " -h Issue this verbose help message.\n" 180 " -o offset\n" 181 " Block offset from start of disk (default 0). Ignored if\n" 182 " -P # specified.\n" 183 " -P fill_patt\n" 184 " Fill disk with pattern fill_patt. fill_patt can be decimal or\n" 185 " hexadecimal and is used as number for constant long word\n" 186 " pattern. If fill_patt is \"#\" then pattern of block #\n" 187 " for each block. Pattern is put in each block as long words\n" 188 " and fills each block (see -o and -s).\n" 189 " -r Read from a disk to stdout (see -o and -s).\n" 190 " -s size Number of blocks on which to perform operation (see -o).\n" 191 " -S geom_file\n" 192 " Use geom_file to set the label geometry (see -g).\n" 193 " -w Write to a disk from stdin (see -o and -s)."; 194 195 static char Ostr[] = "Other OS"; 196 static char Dstr[] = "DOS12"; 197 static char D16str[] = "DOS16"; 198 static char DDstr[] = "DOS-DATA"; 199 static char EDstr[] = "EXT-DOS"; 200 static char DBstr[] = "DOS-BIG"; 201 static char PCstr[] = "PCIX"; 202 static char Ustr[] = "UNIX System"; 203 static char SUstr[] = "Solaris"; 204 static char SU2str[] = "Solaris2"; 205 static char X86str[] = "x86 Boot"; 206 static char DIAGstr[] = "Diagnostic"; 207 static char IFSstr[] = "IFS: NTFS"; 208 static char AIXstr[] = "AIX Boot"; 209 static char AIXDstr[] = "AIX Data"; 210 static char OS2str[] = "OS/2 Boot"; 211 static char WINstr[] = "Win95 FAT32"; 212 static char EWINstr[] = "Ext Win95"; 213 static char FAT95str[] = "FAT16 LBA"; 214 static char EXTLstr[] = "EXT LBA"; 215 static char LINUXstr[] = "Linux"; 216 static char CPMstr[] = "CP/M"; 217 static char NOVstr[] = "Netware 3.x+"; 218 static char QNXstr[] = "QNX 4.x"; 219 static char QNX2str[] = "QNX part 2"; 220 static char QNX3str[] = "QNX part 3"; 221 static char LINNATstr[] = "Linux native"; 222 static char NTFSVOL1str[] = "NT volset 1"; 223 static char NTFSVOL2str[] = "NT volset 2"; 224 static char BSDstr[] = "BSD OS"; 225 static char NEXTSTEPstr[] = "NeXTSTEP"; 226 static char BSDIFSstr[] = "BSDI FS"; 227 static char BSDISWAPstr[] = "BSDI swap"; 228 static char Actvstr[] = "Active"; 229 static char EFIstr[] = "EFI"; 230 static char NAstr[] = " "; 231 232 /* All the user options and flags */ 233 static char *Dfltdev; /* name of fixed disk drive */ 234 235 /* Diagnostic options */ 236 static int io_wrt = 0; /* write stdin to disk (-w) */ 237 static int io_rd = 0; /* read disk and write stdout (-r) */ 238 static char *io_fatt; /* user supplied pattern (-P pattern) */ 239 static int io_patt = 0; /* write pattern to disk (-P pattern) */ 240 static int io_lgeom = 0; /* get label geometry (-g) */ 241 static int io_pgeom = 0; /* get drive physical geometry (-G) */ 242 static char *io_sgeom = 0; /* set label geometry (-S geom_file) */ 243 static int io_readonly = 0; /* do not write to disk (-R) */ 244 245 /* The -o offset and -s size options specify the area of the disk on */ 246 /* which to perform the particular operation; i.e., -P, -r, or -w. */ 247 static off_t io_offset = 0; /* offset sector (-o offset) */ 248 static off_t io_size = 0; /* size in sectors (-s size) */ 249 250 /* Partition table flags */ 251 static int v_flag = 0; /* virtual geometry-HBA flag (-v) */ 252 static int stdo_flag = 0; /* stdout flag (-W -) */ 253 static int io_fdisk = 0; /* do fdisk operation */ 254 static int io_ifdisk = 0; /* interactive partition */ 255 static int io_nifdisk = 0; /* non-interactive partition (-n) */ 256 257 static int io_adjt = 0; /* check/adjust VTOC (truncate (-t)) */ 258 static int io_ADJT = 0; /* check/adjust VTOC (delete (-T)) */ 259 static char *io_ffdisk = 0; /* input fdisk file name (-F file) */ 260 static char *io_Wfdisk = 0; /* output fdisk file name (-W file) */ 261 static char *io_Afdisk = 0; /* add entry to partition table (-A) */ 262 static char *io_Dfdisk = 0; /* delete entry from part. table (-D) */ 263 264 static char *io_mboot = 0; /* master boot record (-b boot_file) */ 265 266 static struct mboot BootCod; /* buffer for master boot record */ 267 268 static int io_wholedisk = 0; /* use whole disk for Solaris (-B) */ 269 static int io_EFIdisk = 0; /* use whole disk for EFI (-E) */ 270 static int io_debug = 0; /* activate verbose mode (-d) */ 271 static int io_image = 0; /* create image using geometry (-I) */ 272 273 static struct mboot *Bootblk; /* pointer to cut/paste sector zero */ 274 static char *Bootsect; /* pointer to sector zero buffer */ 275 static char *Nullsect; 276 static struct extvtoc disk_vtoc; /* verify VTOC table */ 277 static int vt_inval = 0; 278 static int no_virtgeom_ioctl = 0; /* ioctl for virtual geometry failed */ 279 static int no_physgeom_ioctl = 0; /* ioctl for physical geometry failed */ 280 281 static struct ipart Table[FD_NUMPART]; 282 static struct ipart Old_Table[FD_NUMPART]; 283 static int skip_verify[FD_NUMPART]; /* special case skip sz chk */ 284 285 /* Disk geometry information */ 286 static struct dk_minfo minfo; 287 static struct dk_geom disk_geom; 288 289 static int Dev; /* fd for open device */ 290 291 static diskaddr_t dev_capacity; /* number of blocks on device */ 292 static diskaddr_t chs_capacity; /* Numcyl_usable * heads * sectors */ 293 294 static int Numcyl_usable; /* Number of usable cylinders */ 295 /* used to limit fdisk to 2TB */ 296 297 /* Physical geometry for the drive */ 298 static int Numcyl; /* number of cylinders */ 299 static int heads; /* number of heads */ 300 static int sectors; /* number of sectors per track */ 301 static int acyl; /* number of alternate sectors */ 302 303 /* HBA (virtual) geometry for the drive */ 304 static int hba_Numcyl; /* number of cylinders */ 305 static int hba_heads; /* number of heads */ 306 static int hba_sectors; /* number of sectors per track */ 307 308 static int sectsiz; /* sector size */ 309 310 /* Load functions for fdisk table modification */ 311 #define LOADFILE 0 /* load fdisk from file */ 312 #define LOADDEL 1 /* delete an fdisk entry */ 313 #define LOADADD 2 /* add an fdisk entry */ 314 315 #define CBUFLEN 80 316 static char s[CBUFLEN]; 317 318 static void update_disk_and_exit(boolean_t table_changed); 319 int main(int argc, char *argv[]); 320 static int read_geom(char *sgeom); 321 static void dev_mboot_read(void); 322 static void dev_mboot_write(off_t sect, char *buff, int bootsiz); 323 static void mboot_read(void); 324 static void fill_patt(void); 325 static void abs_read(void); 326 static void abs_write(void); 327 static void load(int funct, char *file); 328 static void Set_Table_CHS_Values(int ti); 329 static int insert_tbl(int id, int act, 330 int bhead, int bsect, int bcyl, 331 int ehead, int esect, int ecyl, 332 uint32_t rsect, uint32_t numsect); 333 static int entry_from_old_table(int id, int act, 334 int bhead, int bsect, int bcyl, 335 int ehead, int esect, int ecyl, 336 uint32_t rsect, uint32_t numsect); 337 static int verify_tbl(void); 338 static int pars_fdisk(char *line, 339 int *id, int *act, 340 int *bhead, int *bsect, int *bcyl, 341 int *ehead, int *esect, int *ecyl, 342 uint32_t *rsect, uint32_t *numsect); 343 static int validate_part(int id, uint32_t rsect, uint32_t numsect); 344 static void stage0(void); 345 static int pcreate(void); 346 static int specify(uchar_t tsystid); 347 static void dispmenu(void); 348 static int pchange(void); 349 static int ppartid(void); 350 static char pdelete(void); 351 static void rm_blanks(char *s); 352 static int getcyl(void); 353 static void disptbl(void); 354 static void print_Table(void); 355 static void copy_Table_to_Old_Table(void); 356 static void nulltbl(void); 357 static void copy_Bootblk_to_Table(void); 358 static void fill_ipart(char *bootptr, struct ipart *partp); 359 #ifdef sparc 360 uchar_t getbyte(char **bp); 361 uint32_t getlong(char **bp); 362 #endif 363 static void copy_Table_to_Bootblk(void); 364 static int TableChanged(void); 365 static void ffile_write(char *file); 366 static void fix_slice(void); 367 static int yesno(void); 368 static int readvtoc(void); 369 static int writevtoc(void); 370 static int efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc); 371 static int clear_efi(void); 372 static void clear_vtoc(int table, int part); 373 static int lecture_and_query(char *warning, char *devname); 374 static void sanity_check_provided_device(char *devname, int fd); 375 static char *get_node(char *devname); 376 377 static void 378 update_disk_and_exit(boolean_t table_changed) 379 { 380 if (table_changed) { 381 /* 382 * Copy the new table back to the sector buffer 383 * and write it to disk 384 */ 385 copy_Table_to_Bootblk(); 386 dev_mboot_write(0, Bootsect, sectsiz); 387 } 388 389 /* If the VTOC table is wrong fix it (truncation only) */ 390 if (io_adjt) 391 fix_slice(); 392 393 exit(0); 394 } 395 396 397 398 /* 399 * main 400 * Process command-line options. 401 */ 402 int 403 main(int argc, char *argv[]) 404 { 405 int c, i; 406 extern int optind; 407 extern char *optarg; 408 int errflg = 0; 409 int diag_cnt = 0; 410 int openmode; 411 412 setbuf(stderr, 0); /* so all output gets out on exit */ 413 setbuf(stdout, 0); 414 415 /* Process the options. */ 416 while ((c = getopt(argc, argv, "o:s:P:F:b:A:D:W:S:tTIhwvrndgGRBE")) 417 != EOF) { 418 switch (c) { 419 420 case 'o': 421 io_offset = (off_t)strtoull(optarg, 0, 0); 422 continue; 423 case 's': 424 io_size = (off_t)strtoull(optarg, 0, 0); 425 continue; 426 case 'P': 427 diag_cnt++; 428 io_patt++; 429 io_fatt = optarg; 430 continue; 431 case 'w': 432 diag_cnt++; 433 io_wrt++; 434 continue; 435 case 'r': 436 diag_cnt++; 437 io_rd++; 438 continue; 439 case 'd': 440 io_debug++; 441 continue; 442 case 'I': 443 io_image++; 444 continue; 445 case 'R': 446 io_readonly++; 447 continue; 448 case 'S': 449 diag_cnt++; 450 io_sgeom = optarg; 451 continue; 452 case 'T': 453 io_ADJT++; 454 /* FALLTHRU */ 455 case 't': 456 io_adjt++; 457 continue; 458 case 'B': 459 io_wholedisk++; 460 io_fdisk++; 461 continue; 462 case 'E': 463 io_EFIdisk++; 464 io_fdisk++; 465 continue; 466 case 'g': 467 diag_cnt++; 468 io_lgeom++; 469 continue; 470 case 'G': 471 diag_cnt++; 472 io_pgeom++; 473 continue; 474 case 'n': 475 io_nifdisk++; 476 io_fdisk++; 477 continue; 478 case 'F': 479 io_fdisk++; 480 io_ffdisk = optarg; 481 continue; 482 case 'b': 483 io_mboot = optarg; 484 continue; 485 case 'W': 486 /* 487 * If '-' is the -W argument, then write 488 * to standard output, otherwise write 489 * to the specified file. 490 */ 491 if (strncmp(optarg, "-", 1) == 0) 492 stdo_flag = 1; 493 else 494 io_Wfdisk = optarg; 495 io_fdisk++; 496 continue; 497 case 'A': 498 io_fdisk++; 499 io_Afdisk = optarg; 500 continue; 501 case 'D': 502 io_fdisk++; 503 io_Dfdisk = optarg; 504 continue; 505 case 'h': 506 (void) fprintf(stderr, "%s\n", Usage); 507 (void) fprintf(stderr, "%s\n", Usage1); 508 exit(0); 509 /* FALLTHRU */ 510 case 'v': 511 v_flag = 1; 512 continue; 513 case '?': 514 errflg++; 515 break; 516 } 517 break; 518 } 519 520 if (io_image && io_sgeom && diag_cnt == 1) { 521 diag_cnt = 0; 522 } 523 524 /* User option checking */ 525 526 /* By default, run in interactive mode */ 527 if (!io_fdisk && !diag_cnt && !io_nifdisk) { 528 io_ifdisk++; 529 io_fdisk++; 530 } 531 if (((io_fdisk || io_adjt) && diag_cnt) || (diag_cnt > 1)) { 532 errflg++; 533 } 534 535 /* Was any error detected? */ 536 if (errflg || argc == optind) { 537 (void) fprintf(stderr, "%s\n", Usage); 538 (void) fprintf(stderr, 539 "\nDetailed help is available with the -h option.\n"); 540 exit(2); 541 } 542 543 544 /* Figure out the correct device node to open */ 545 Dfltdev = get_node(argv[optind]); 546 547 if (io_readonly) 548 openmode = O_RDONLY; 549 else 550 openmode = O_RDWR|O_CREAT; 551 552 if ((Dev = open(Dfltdev, openmode, 0666)) == -1) { 553 (void) fprintf(stderr, 554 "fdisk: Cannot open device %s.\n", 555 Dfltdev); 556 exit(1); 557 } 558 /* 559 * not all disk (or disklike) drivers support DKIOCGMEDIAINFO 560 * in that case leave the minfo structure zeroed 561 */ 562 if (ioctl(Dev, DKIOCGMEDIAINFO, &minfo)) { 563 memset(&minfo, 0, sizeof (minfo)); 564 } 565 566 /* Get the disk geometry */ 567 if (!io_image) { 568 /* Get disk's HBA (virtual) geometry */ 569 errno = 0; 570 if (ioctl(Dev, DKIOCG_VIRTGEOM, &disk_geom)) { 571 572 /* 573 * If ioctl isn't implemented on this platform, then 574 * turn off flag to print out virtual geometry (-v), 575 * otherwise use the virtual geometry. 576 */ 577 578 if (errno == ENOTTY) { 579 v_flag = 0; 580 no_virtgeom_ioctl = 1; 581 } else if (errno == EINVAL) { 582 /* 583 * This means that the ioctl exists, but 584 * is invalid for this disk, meaning the 585 * disk doesn't have an HBA geometry 586 * (like, say, it's larger than 8GB). 587 */ 588 v_flag = 0; 589 hba_Numcyl = hba_heads = hba_sectors = 0; 590 } else { 591 (void) fprintf(stderr, 592 "%s: Cannot get virtual disk geometry.\n", 593 argv[optind]); 594 exit(1); 595 } 596 } else { 597 /* save virtual geometry values obtained by ioctl */ 598 hba_Numcyl = disk_geom.dkg_ncyl; 599 hba_heads = disk_geom.dkg_nhead; 600 hba_sectors = disk_geom.dkg_nsect; 601 } 602 603 errno = 0; 604 if (ioctl(Dev, DKIOCG_PHYGEOM, &disk_geom)) { 605 if (errno == ENOTTY) { 606 no_physgeom_ioctl = 1; 607 } else { 608 (void) fprintf(stderr, 609 "%s: Cannot get physical disk geometry.\n", 610 argv[optind]); 611 exit(1); 612 } 613 614 } 615 /* 616 * Call DKIOCGGEOM if the ioctls for physical and virtual 617 * geometry fail. Get both from this generic call. 618 */ 619 if (no_virtgeom_ioctl && no_physgeom_ioctl) { 620 errno = 0; 621 if (ioctl(Dev, DKIOCGGEOM, &disk_geom)) { 622 (void) fprintf(stderr, 623 "%s: Cannot get disk label geometry.\n", 624 argv[optind]); 625 exit(1); 626 } 627 } 628 629 Numcyl = disk_geom.dkg_ncyl; 630 heads = disk_geom.dkg_nhead; 631 sectors = disk_geom.dkg_nsect; 632 sectsiz = 512; 633 acyl = disk_geom.dkg_acyl; 634 635 /* 636 * if hba geometry was not set by DKIOC_VIRTGEOM 637 * or we got an invalid hba geometry 638 * then set hba geometry based on max values 639 */ 640 if (no_virtgeom_ioctl || 641 disk_geom.dkg_ncyl == 0 || 642 disk_geom.dkg_nhead == 0 || 643 disk_geom.dkg_nsect == 0 || 644 disk_geom.dkg_ncyl > MAX_CYL || 645 disk_geom.dkg_nhead > MAX_HEAD || 646 disk_geom.dkg_nsect > MAX_SECT) { 647 648 /* 649 * turn off flag to print out virtual geometry (-v) 650 */ 651 v_flag = 0; 652 hba_sectors = MAX_SECT; 653 hba_heads = MAX_HEAD + 1; 654 hba_Numcyl = (Numcyl * heads * sectors) / 655 (hba_sectors * hba_heads); 656 } 657 658 if (io_debug) { 659 (void) fprintf(stderr, "Physical Geometry:\n"); 660 (void) fprintf(stderr, 661 " cylinders[%d] heads[%d] sectors[%d]\n" 662 " sector size[%d] blocks[%d] mbytes[%d]\n", 663 Numcyl, 664 heads, 665 sectors, 666 sectsiz, 667 Numcyl * heads * sectors, 668 (Numcyl * heads * sectors * sectsiz) / 1048576); 669 (void) fprintf(stderr, "Virtual (HBA) Geometry:\n"); 670 (void) fprintf(stderr, 671 " cylinders[%d] heads[%d] sectors[%d]\n" 672 " sector size[%d] blocks[%d] mbytes[%d]\n", 673 hba_Numcyl, 674 hba_heads, 675 hba_sectors, 676 sectsiz, 677 hba_Numcyl * hba_heads * hba_sectors, 678 (hba_Numcyl * hba_heads * hba_sectors * sectsiz) / 679 1048576); 680 } 681 } 682 683 /* If user has requested a geometry report just do it and exit */ 684 if (io_lgeom) { 685 if (ioctl(Dev, DKIOCGGEOM, &disk_geom)) { 686 (void) fprintf(stderr, 687 "%s: Cannot get disk label geometry.\n", 688 argv[optind]); 689 exit(1); 690 } 691 Numcyl = disk_geom.dkg_ncyl; 692 heads = disk_geom.dkg_nhead; 693 sectors = disk_geom.dkg_nsect; 694 sectsiz = 512; 695 acyl = disk_geom.dkg_acyl; 696 (void) printf("* Label geometry for device %s\n", Dfltdev); 697 (void) printf( 698 "* PCYL NCYL ACYL BCYL NHEAD NSECT" 699 " SECSIZ\n"); 700 (void) printf(" %-8d %-8d %-8d %-8d %-5d %-5d %-6d\n", 701 Numcyl, 702 disk_geom.dkg_ncyl, 703 disk_geom.dkg_acyl, 704 disk_geom.dkg_bcyl, 705 heads, 706 sectors, 707 sectsiz); 708 exit(0); 709 } else if (io_pgeom) { 710 if (ioctl(Dev, DKIOCG_PHYGEOM, &disk_geom)) { 711 (void) fprintf(stderr, 712 "%s: Cannot get physical disk geometry.\n", 713 argv[optind]); 714 exit(1); 715 } 716 (void) printf("* Physical geometry for device %s\n", Dfltdev); 717 (void) printf( 718 "* PCYL NCYL ACYL BCYL NHEAD NSECT" 719 " SECSIZ\n"); 720 (void) printf(" %-8d %-8d %-8d %-8d %-5d %-5d %-6d\n", 721 disk_geom.dkg_pcyl, 722 disk_geom.dkg_ncyl, 723 disk_geom.dkg_acyl, 724 disk_geom.dkg_bcyl, 725 disk_geom.dkg_nhead, 726 disk_geom.dkg_nsect, 727 sectsiz); 728 exit(0); 729 } else if (io_sgeom) { 730 if (read_geom(io_sgeom)) { 731 exit(1); 732 } else if (!io_image) { 733 exit(0); 734 } 735 } 736 737 /* 738 * some drivers may not support DKIOCGMEDIAINFO 739 * in that case use CHS 740 */ 741 chs_capacity = (diskaddr_t)Numcyl * heads * sectors; 742 dev_capacity = chs_capacity; 743 Numcyl_usable = Numcyl; 744 745 if (chs_capacity > DK_MAX_2TB) { 746 /* limit to 2TB */ 747 Numcyl_usable = DK_MAX_2TB / (heads * sectors); 748 chs_capacity = (diskaddr_t)Numcyl_usable * heads * sectors; 749 } 750 751 if (minfo.dki_capacity > 0) 752 dev_capacity = minfo.dki_capacity; 753 754 /* Allocate memory to hold three complete sectors */ 755 Bootsect = (char *)malloc(3 * sectsiz); 756 if (Bootsect == NULL) { 757 (void) fprintf(stderr, 758 "fdisk: Unable to obtain enough buffer memory" 759 " (%d bytes).\n", 760 3 * sectsiz); 761 exit(1); 762 } 763 764 Nullsect = Bootsect + sectsiz; 765 /* Zero out the "NULL" sector */ 766 for (i = 0; i < sectsiz; i++) { 767 Nullsect[i] = 0; 768 } 769 770 /* Find out what the user wants done */ 771 if (io_rd) { /* abs disk read */ 772 abs_read(); /* will not return */ 773 } else if (io_wrt && !io_readonly) { 774 abs_write(); /* will not return */ 775 } else if (io_patt && !io_readonly) { 776 fill_patt(); /* will not return */ 777 } 778 779 780 /* This is the fdisk edit, the real reason for the program. */ 781 782 sanity_check_provided_device(Dfltdev, Dev); 783 784 /* Get the new BOOT program in case we write a new fdisk table */ 785 mboot_read(); 786 787 /* Read from disk master boot */ 788 dev_mboot_read(); 789 790 /* 791 * Verify and copy the device's fdisk table. This will be used 792 * as the prototype mboot if the device's mboot looks invalid. 793 */ 794 Bootblk = (struct mboot *)Bootsect; 795 copy_Bootblk_to_Table(); 796 797 /* save away a copy of Table in Old_Table for sensing changes */ 798 copy_Table_to_Old_Table(); 799 800 /* Load fdisk table from specified file (-F fdisk_file) */ 801 if (io_ffdisk) { 802 /* Load and verify user-specified table parameters */ 803 load(LOADFILE, io_ffdisk); 804 } 805 806 /* Does user want to delete or add an entry? */ 807 if (io_Dfdisk) { 808 load(LOADDEL, io_Dfdisk); 809 } 810 if (io_Afdisk) { 811 load(LOADADD, io_Afdisk); 812 } 813 814 if (!io_ffdisk && !io_Afdisk && !io_Dfdisk) { 815 /* Check if there is no fdisk table */ 816 if (Table[0].systid == UNUSED || io_wholedisk || io_EFIdisk) { 817 if (io_ifdisk && !io_wholedisk && !io_EFIdisk) { 818 (void) printf( 819 "No fdisk table exists. The default" 820 " partition for the disk is:\n\n" 821 " a 100%% \"SOLARIS System\" " 822 "partition\n\n" 823 "Type \"y\" to accept the default " 824 "partition, otherwise type \"n\" to " 825 "edit the\n partition table.\n"); 826 827 if (Numcyl > Numcyl_usable) 828 (void) printf("WARNING: Disk is larger" 829 " than 2TB. Solaris partition will" 830 " be limited to 2 TB.\n"); 831 } 832 833 /* Edit the partition table as directed */ 834 if (io_wholedisk ||(io_ifdisk && yesno())) { 835 836 /* Default scenario */ 837 nulltbl(); 838 /* now set up UNIX System partition */ 839 Table[0].bootid = ACTIVE; 840 Table[0].relsect = lel(heads * sectors); 841 842 Table[0].numsect = 843 lel((ulong_t)((Numcyl_usable - 1) * 844 heads * sectors)); 845 846 Table[0].systid = SUNIXOS2; /* Solaris */ 847 848 /* calculate CHS values for table entry 0 */ 849 Set_Table_CHS_Values(0); 850 update_disk_and_exit(B_TRUE); 851 } else if (io_EFIdisk) { 852 /* create an EFI partition for the whole disk */ 853 nulltbl(); 854 i = insert_tbl(EFI_PMBR, 0, 0, 0, 0, 0, 0, 0, 1, 855 (dev_capacity > DK_MAX_2TB) ? DK_MAX_2TB : 856 (dev_capacity - 1)); 857 if (i != 0) { 858 (void) fprintf(stderr, 859 "Error creating EFI partition\n"); 860 exit(1); 861 } 862 update_disk_and_exit(B_TRUE); 863 } 864 } 865 } 866 867 /* Display complete fdisk table entries for debugging purposes */ 868 if (io_debug) { 869 (void) fprintf(stderr, "Partition Table Entry Values:\n"); 870 print_Table(); 871 if (io_ifdisk) { 872 (void) fprintf(stderr, "\n"); 873 (void) fprintf(stderr, "Press Enter to continue.\n"); 874 (void) gets(s); 875 } 876 } 877 878 /* Interactive fdisk mode */ 879 if (io_ifdisk) { 880 (void) printf(CLR_SCR); 881 disptbl(); 882 for (;;) { 883 stage0(); 884 copy_Bootblk_to_Table(); 885 disptbl(); 886 } 887 } 888 889 /* If user wants to write the table to a file, do it */ 890 if (io_Wfdisk) 891 ffile_write(io_Wfdisk); 892 else if (stdo_flag) 893 ffile_write((char *)stdout); 894 895 update_disk_and_exit(TableChanged() == 1); 896 return (0); 897 } 898 899 /* 900 * read_geom 901 * Read geometry from specified file (-S). 902 */ 903 904 static int 905 read_geom(char *sgeom) 906 { 907 char line[256]; 908 FILE *fp; 909 910 /* open the prototype file */ 911 if ((fp = fopen(sgeom, "r")) == NULL) { 912 (void) fprintf(stderr, "fdisk: Cannot open file %s.\n", 913 io_sgeom); 914 return (1); 915 } 916 917 /* Read a line from the file */ 918 while (fgets(line, sizeof (line) - 1, fp)) { 919 if (line[0] == '\0' || line[0] == '\n' || line[0] == '*') 920 continue; 921 else { 922 line[strlen(line)] = '\0'; 923 if (sscanf(line, "%hu %hu %hu %hu %hu %hu %d", 924 &disk_geom.dkg_pcyl, 925 &disk_geom.dkg_ncyl, 926 &disk_geom.dkg_acyl, 927 &disk_geom.dkg_bcyl, 928 &disk_geom.dkg_nhead, 929 &disk_geom.dkg_nsect, 930 §siz) != 7) { 931 (void) fprintf(stderr, 932 "Syntax error:\n \"%s\".\n", 933 line); 934 return (1); 935 } 936 break; 937 } /* else */ 938 } /* while (fgets(line, sizeof (line) - 1, fp)) */ 939 940 if (!io_image) { 941 if (ioctl(Dev, DKIOCSGEOM, &disk_geom)) { 942 (void) fprintf(stderr, 943 "fdisk: Cannot set label geometry.\n"); 944 return (1); 945 } 946 } else { 947 Numcyl = hba_Numcyl = disk_geom.dkg_ncyl; 948 heads = hba_heads = disk_geom.dkg_nhead; 949 sectors = hba_sectors = disk_geom.dkg_nsect; 950 acyl = disk_geom.dkg_acyl; 951 } 952 953 (void) fclose(fp); 954 return (0); 955 } 956 957 /* 958 * dev_mboot_read 959 * Read the master boot sector from the device. 960 */ 961 static void 962 dev_mboot_read(void) 963 { 964 if ((ioctl(Dev, DKIOCGMBOOT, Bootsect) < 0) && (errno != ENOTTY)) { 965 perror("Error in ioctl DKIOCGMBOOT"); 966 } 967 if (errno == 0) 968 return; 969 if (lseek(Dev, 0, SEEK_SET) == -1) { 970 (void) fprintf(stderr, 971 "fdisk: Error seeking to partition table on %s.\n", 972 Dfltdev); 973 if (!io_image) 974 exit(1); 975 } 976 if (read(Dev, Bootsect, sectsiz) != sectsiz) { 977 (void) fprintf(stderr, 978 "fdisk: Error reading partition table from %s.\n", 979 Dfltdev); 980 if (!io_image) 981 exit(1); 982 } 983 } 984 985 /* 986 * dev_mboot_write 987 * Write the master boot sector to the device. 988 */ 989 static void 990 dev_mboot_write(off_t sect, char *buff, int bootsiz) 991 { 992 int new_pt, old_pt, error; 993 int clr_efi = -1; 994 995 if (io_readonly) 996 return; 997 998 if (io_debug) { 999 (void) fprintf(stderr, "About to write fdisk table:\n"); 1000 print_Table(); 1001 if (io_ifdisk) { 1002 (void) fprintf(stderr, "Press Enter to continue.\n"); 1003 (void) gets(s); 1004 } 1005 } 1006 1007 /* 1008 * If the new table has any Solaris partitions and the old 1009 * table does not have an entry that describes it 1010 * exactly then clear the old vtoc (if any). 1011 */ 1012 for (new_pt = 0; new_pt < FD_NUMPART; new_pt++) { 1013 1014 /* We only care about potential Solaris parts. */ 1015 if (Table[new_pt].systid != SUNIXOS && 1016 Table[new_pt].systid != SUNIXOS2) 1017 continue; 1018 1019 /* Does the old table have an exact entry for the new entry? */ 1020 for (old_pt = 0; old_pt < FD_NUMPART; old_pt++) { 1021 1022 /* We only care about old Solaris partitions. */ 1023 if ((Old_Table[old_pt].systid == SUNIXOS) || 1024 (Old_Table[old_pt].systid == SUNIXOS2)) { 1025 1026 /* Is this old one the same as a new one? */ 1027 if ((Old_Table[old_pt].relsect == 1028 Table[new_pt].relsect) && 1029 (Old_Table[old_pt].numsect == 1030 Table[new_pt].numsect)) 1031 break; /* Yes */ 1032 } 1033 } 1034 1035 /* Did a solaris partition change location or size? */ 1036 if (old_pt >= FD_NUMPART) { 1037 /* Yes clear old vtoc */ 1038 if (io_debug) { 1039 (void) fprintf(stderr, 1040 "Clearing VTOC labels from NEW" 1041 " table\n"); 1042 } 1043 clear_vtoc(NEW, new_pt); 1044 } 1045 } 1046 1047 1048 /* see if the old table had EFI */ 1049 for (old_pt = 0; old_pt < FD_NUMPART; old_pt++) { 1050 if (Old_Table[old_pt].systid == EFI_PMBR) { 1051 clr_efi = old_pt; 1052 } 1053 } 1054 1055 /* look to see if a EFI partition changed in relsect/numsect */ 1056 for (new_pt = 0; new_pt < FD_NUMPART; new_pt++) { 1057 if (Table[new_pt].systid != EFI_PMBR) 1058 continue; 1059 for (old_pt = 0; old_pt < FD_NUMPART; old_pt++) { 1060 if ((Old_Table[old_pt].systid == 1061 Table[new_pt].systid) && 1062 (Old_Table[old_pt].relsect == 1063 Table[new_pt].relsect) && 1064 (Old_Table[old_pt].numsect == 1065 Table[new_pt].numsect)) 1066 break; 1067 } 1068 1069 /* 1070 * if EFI partition changed, set the flag to clear 1071 * the EFI GPT 1072 */ 1073 if (old_pt == FD_NUMPART && Table[new_pt].begcyl != 0) { 1074 clr_efi = 0; 1075 } 1076 break; 1077 } 1078 1079 /* clear labels if necessary */ 1080 if (clr_efi >= 0) { 1081 if (io_debug) { 1082 (void) fprintf(stderr, "Clearing EFI labels\n"); 1083 } 1084 if ((error = clear_efi()) != 0) { 1085 if (io_debug) { 1086 (void) fprintf(stderr, 1087 "\tError %d clearing EFI labels" 1088 " (probably no EFI labels exist)\n", 1089 error); 1090 } 1091 } 1092 } 1093 1094 if ((ioctl(Dev, DKIOCSMBOOT, buff) == -1) && (errno != ENOTTY)) { 1095 (void) fprintf(stderr, 1096 "fdisk: Error in ioctl DKIOCSMBOOT on %s.\n", 1097 Dfltdev); 1098 } 1099 if (errno == 0) 1100 return; 1101 1102 /* write to disk drive */ 1103 if (lseek(Dev, sect, SEEK_SET) == -1) { 1104 (void) fprintf(stderr, 1105 "fdisk: Error seeking to master boot record on %s.\n", 1106 Dfltdev); 1107 exit(1); 1108 } 1109 if (write(Dev, buff, bootsiz) != bootsiz) { 1110 (void) fprintf(stderr, 1111 "fdisk: Error writing master boot record to %s.\n", 1112 Dfltdev); 1113 exit(1); 1114 } 1115 } 1116 1117 /* 1118 * mboot_read 1119 * Read the prototype boot records from the files. 1120 */ 1121 static void 1122 mboot_read(void) 1123 { 1124 int mDev, i; 1125 struct ipart *part; 1126 1127 #if defined(i386) || defined(sparc) 1128 /* 1129 * If the master boot file hasn't been specified, use the 1130 * implementation architecture name to generate the default one. 1131 */ 1132 if (io_mboot == (char *)0) { 1133 /* 1134 * Bug ID 1249035: 1135 * The mboot file must be delivered on all platforms 1136 * and installed in a non-platform-dependent 1137 * directory; i.e., /usr/lib/fs/ufs. 1138 */ 1139 io_mboot = "/usr/lib/fs/ufs/mboot"; 1140 } 1141 1142 /* First read in the master boot record */ 1143 1144 /* Open the master boot proto file */ 1145 if ((mDev = open(io_mboot, O_RDONLY, 0666)) == -1) { 1146 (void) fprintf(stderr, 1147 "fdisk: Cannot open master boot file %s.\n", 1148 io_mboot); 1149 exit(1); 1150 } 1151 1152 /* Read the master boot program */ 1153 if (read(mDev, &BootCod, sizeof (struct mboot)) != sizeof 1154 (struct mboot)) { 1155 (void) fprintf(stderr, 1156 "fdisk: Cannot read master boot file %s.\n", 1157 io_mboot); 1158 exit(1); 1159 } 1160 1161 /* Is this really a master boot record? */ 1162 if (les(BootCod.signature) != MBB_MAGIC) { 1163 (void) fprintf(stderr, 1164 "fdisk: Invalid master boot file %s.\n", io_mboot); 1165 (void) fprintf(stderr, 1166 "Bad magic number: is %x, but should be %x.\n", 1167 les(BootCod.signature), MBB_MAGIC); 1168 exit(1); 1169 } 1170 1171 (void) close(mDev); 1172 #else 1173 #error fdisk needs to be ported to new architecture 1174 #endif 1175 1176 /* Zero out the partitions part of this record */ 1177 part = (struct ipart *)BootCod.parts; 1178 for (i = 0; i < FD_NUMPART; i++, part++) { 1179 (void) memset(part, 0, sizeof (struct ipart)); 1180 } 1181 1182 } 1183 1184 /* 1185 * fill_patt 1186 * Fill the disk with user/sector number pattern. 1187 */ 1188 static void 1189 fill_patt(void) 1190 { 1191 int *buff_ptr, i; 1192 off_t *off_ptr; 1193 int io_fpatt = 0; 1194 int io_ipatt = 0; 1195 1196 if (strncmp(io_fatt, "#", 1) != 0) { 1197 io_fpatt++; 1198 io_ipatt = strtoul(io_fatt, 0, 0); 1199 buff_ptr = (int *)Bootsect; 1200 for (i = 0; i < sectsiz; i += 4, buff_ptr++) 1201 *buff_ptr = io_ipatt; 1202 } 1203 1204 /* 1205 * Fill disk with pattern based on block number. 1206 * Write to the disk at absolute relative block io_offset 1207 * for io_size blocks. 1208 */ 1209 while (io_size--) { 1210 off_ptr = (off_t *)Bootsect; 1211 if (!io_fpatt) { 1212 for (i = 0; i < sectsiz; 1213 i += sizeof (off_t), off_ptr++) 1214 *off_ptr = io_offset; 1215 } 1216 /* Write the data to disk */ 1217 if (lseek(Dev, (off_t)(sectsiz * io_offset++), 1218 SEEK_SET) == -1) { 1219 (void) fprintf(stderr, "fdisk: Error seeking on %s.\n", 1220 Dfltdev); 1221 exit(1); 1222 } 1223 if (write(Dev, Bootsect, sectsiz) != sectsiz) { 1224 (void) fprintf(stderr, "fdisk: Error writing %s.\n", 1225 Dfltdev); 1226 exit(1); 1227 } 1228 } /* while (--io_size); */ 1229 } 1230 1231 /* 1232 * abs_read 1233 * Read from the disk at absolute relative block io_offset for 1234 * io_size blocks. Write the data to standard ouput (-r). 1235 */ 1236 static void 1237 abs_read(void) 1238 { 1239 int c; 1240 1241 while (io_size--) { 1242 if (lseek(Dev, (off_t)(sectsiz * io_offset++), 1243 SEEK_SET) == -1) { 1244 (void) fprintf(stderr, "fdisk: Error seeking on %s.\n", 1245 Dfltdev); 1246 exit(1); 1247 } 1248 if (read(Dev, Bootsect, sectsiz) != sectsiz) { 1249 (void) fprintf(stderr, "fdisk: Error reading %s.\n", 1250 Dfltdev); 1251 exit(1); 1252 } 1253 1254 /* Write to standard ouptut */ 1255 if ((c = write(1, Bootsect, (unsigned)sectsiz)) != sectsiz) { 1256 if (c >= 0) { 1257 if (io_debug) 1258 (void) fprintf(stderr, 1259 "fdisk: Output warning: %d of %d" 1260 " characters written.\n", 1261 c, sectsiz); 1262 exit(2); 1263 } else { 1264 perror("write error on output file."); 1265 exit(2); 1266 } 1267 } /* if ((c = write(1, Bootsect, (unsigned)sectsiz)) */ 1268 /* != sectsiz) */ 1269 } /* while (--io_size); */ 1270 exit(0); 1271 } 1272 1273 /* 1274 * abs_write 1275 * Read the data from standard input. Write to the disk at 1276 * absolute relative block io_offset for io_size blocks (-w). 1277 */ 1278 static void 1279 abs_write(void) 1280 { 1281 int c, i; 1282 1283 while (io_size--) { 1284 int part_exit = 0; 1285 /* Read from standard input */ 1286 if ((c = read(0, Bootsect, (unsigned)sectsiz)) != sectsiz) { 1287 if (c >= 0) { 1288 if (io_debug) 1289 (void) fprintf(stderr, 1290 "fdisk: WARNING: Incomplete read (%d of" 1291 " %d characters read) on input file.\n", 1292 c, sectsiz); 1293 /* Fill pattern to mark partial sector in buf */ 1294 for (i = c; i < sectsiz; ) { 1295 Bootsect[i++] = 0x41; 1296 Bootsect[i++] = 0x62; 1297 Bootsect[i++] = 0x65; 1298 Bootsect[i++] = 0; 1299 } 1300 part_exit++; 1301 } else { 1302 perror("read error on input file."); 1303 exit(2); 1304 } 1305 1306 } 1307 /* Write to disk drive */ 1308 if (lseek(Dev, (off_t)(sectsiz * io_offset++), 1309 SEEK_SET) == -1) { 1310 (void) fprintf(stderr, "fdisk: Error seeking on %s.\n", 1311 Dfltdev); 1312 exit(1); 1313 } 1314 if (write(Dev, Bootsect, sectsiz) != sectsiz) { 1315 (void) fprintf(stderr, "fdisk: Error writing %s.\n", 1316 Dfltdev); 1317 exit(1); 1318 } 1319 if (part_exit) 1320 exit(0); 1321 } /* while (--io_size); */ 1322 exit(1); 1323 } 1324 1325 1326 /* 1327 * load 1328 * Load will either read the fdisk table from a file or add or 1329 * delete an entry (-A, -D, -F). 1330 */ 1331 1332 static void 1333 load(int funct, char *file) 1334 { 1335 int id; 1336 int act; 1337 int bhead; 1338 int bsect; 1339 int bcyl; 1340 int ehead; 1341 int esect; 1342 int ecyl; 1343 uint32_t rsect; 1344 uint32_t numsect; 1345 char line[256]; 1346 int i = 0; 1347 int j; 1348 FILE *fp; 1349 1350 switch (funct) { 1351 1352 case LOADFILE: 1353 1354 /* 1355 * Zero out the table before loading it, which will 1356 * force it to be updated on disk later (-F 1357 * fdisk_file). 1358 */ 1359 nulltbl(); 1360 1361 /* Open the prototype file */ 1362 if ((fp = fopen(file, "r")) == NULL) { 1363 (void) fprintf(stderr, 1364 "fdisk: Cannot open prototype partition file %s.\n", 1365 file); 1366 exit(1); 1367 } 1368 1369 /* Read a line from the file */ 1370 while (fgets(line, sizeof (line) - 1, fp)) { 1371 if (pars_fdisk(line, &id, &act, &bhead, &bsect, 1372 &bcyl, &ehead, &esect, &ecyl, &rsect, &numsect)) { 1373 continue; 1374 } 1375 1376 /* 1377 * Validate the partition. It cannot start at sector 1378 * 0 unless it is UNUSED or already exists 1379 */ 1380 if (validate_part(id, rsect, numsect) < 0) { 1381 (void) fprintf(stderr, 1382 "fdisk: Error on entry \"%s\".\n", 1383 line); 1384 exit(1); 1385 } 1386 1387 if (entry_from_old_table(id, act, bhead, bsect, 1388 bcyl, ehead, esect, ecyl, rsect, numsect)) { 1389 /* 1390 * If we got here it means we copied an 1391 * unmodified entry. So there is no need 1392 * to insert it in the table or do any 1393 * checks against disk size. 1394 * 1395 * This is a work around on the following 1396 * situation (for IDE disks, at least): 1397 * Different operation systems calculate 1398 * disk size different ways, of which there 1399 * are two main ways. 1400 * 1401 * The first, rounds the disk size to modulo 1402 * cylinder size (virtual made-up cylinder 1403 * usually based on maximum number of heads 1404 * and sectors in partition table fields). 1405 * Our OS's (for IDE) and most other "Unix" 1406 * type OS's do this. 1407 * 1408 * The second, uses every single block 1409 * on the disk (to maximize available space). 1410 * Since disk manufactures do not know about 1411 * "virtual cylinders", there are some number 1412 * of blocks that make up a partial cylinder 1413 * at the end of the disk. 1414 * 1415 * The difference between these two methods 1416 * is where the problem is. When one 1417 * tries to install Solaris/OpenSolaris on 1418 * a disk that has another OS using that 1419 * "partial cylinder", install fails. It fails 1420 * since fdisk thinks its asked to create a 1421 * partition with the -F option that contains 1422 * a partition that runs off the end of the 1423 * disk. 1424 */ 1425 continue; 1426 } 1427 1428 /* 1429 * Find an unused entry to use and put the entry 1430 * in table 1431 */ 1432 if (insert_tbl(id, act, bhead, bsect, bcyl, ehead, 1433 esect, ecyl, rsect, numsect) < 0) { 1434 (void) fprintf(stderr, 1435 "fdisk: Error on entry \"%s\".\n", 1436 line); 1437 exit(1); 1438 } 1439 } /* while (fgets(line, sizeof (line) - 1, fp)) */ 1440 1441 if (verify_tbl() < 0) { 1442 (void) fprintf(stderr, 1443 "fdisk: Cannot create partition table\n"); 1444 exit(1); 1445 } 1446 1447 (void) fclose(fp); 1448 return; 1449 1450 case LOADDEL: 1451 1452 /* Parse the user-supplied deletion line (-D) */ 1453 if (pars_fdisk(file, &id, &act, &bhead, &bsect, &bcyl, 1454 &ehead, &esect, &ecyl, &rsect, &numsect)) { 1455 (void) fprintf(stderr, 1456 "fdisk: Syntax error \"%s\"\n", file); 1457 exit(1); 1458 } 1459 1460 /* Find the exact entry in the table */ 1461 for (i = 0; i < FD_NUMPART; i++) { 1462 if (Table[i].systid == id && 1463 Table[i].bootid == act && 1464 Table[i].beghead == bhead && 1465 Table[i].begsect == ((bsect & 0x3f) | 1466 (uchar_t)((bcyl>>2) & 0xc0)) && 1467 Table[i].begcyl == (uchar_t)(bcyl & 0xff) && 1468 Table[i].endhead == ehead && 1469 Table[i].endsect == ((esect & 0x3f) | 1470 (uchar_t)((ecyl>>2) & 0xc0)) && 1471 Table[i].endcyl == (uchar_t)(ecyl & 0xff) && 1472 Table[i].relsect == lel(rsect) && 1473 Table[i].numsect == lel(numsect)) { 1474 1475 /* 1476 * Found the entry. Now move rest of 1477 * entries up toward the top of the 1478 * table, leaving available entries at 1479 * the end of the fdisk table. 1480 */ 1481 for (j = i; j < FD_NUMPART - 1; j++) { 1482 Table[j].systid = Table[j + 1].systid; 1483 Table[j].bootid = Table[j + 1].bootid; 1484 Table[j].beghead = Table[j + 1].beghead; 1485 Table[j].begsect = Table[j + 1].begsect; 1486 Table[j].begcyl = Table[j + 1].begcyl; 1487 Table[j].endhead = Table[j + 1].endhead; 1488 Table[j].endsect = Table[j + 1].endsect; 1489 Table[j].endcyl = Table[j + 1].endcyl; 1490 Table[j].relsect = Table[j + 1].relsect; 1491 Table[j].numsect = Table[j + 1].numsect; 1492 } 1493 1494 /* 1495 * Mark the last entry as unused in case 1496 * all table entries were in use prior 1497 * to the deletion. 1498 */ 1499 1500 Table[FD_NUMPART - 1].systid = UNUSED; 1501 Table[FD_NUMPART - 1].bootid = 0; 1502 return; 1503 } 1504 } 1505 (void) fprintf(stderr, 1506 "fdisk: Entry does not match any existing partition:\n" 1507 " \"%s\"\n", 1508 file); 1509 exit(1); 1510 /* FALLTHRU */ 1511 1512 case LOADADD: 1513 1514 /* Parse the user-supplied addition line (-A) */ 1515 if (pars_fdisk(file, &id, &act, &bhead, &bsect, &bcyl, &ehead, 1516 &esect, &ecyl, &rsect, &numsect)) { 1517 (void) fprintf(stderr, 1518 "fdisk: Syntax error \"%s\"\n", file); 1519 exit(1); 1520 } 1521 1522 /* Validate the partition. It cannot start at sector 0 */ 1523 if (rsect == 0) { 1524 (void) fprintf(stderr, 1525 "fdisk: New partition cannot start at sector 0:\n" 1526 " \"%s\".\n", 1527 file); 1528 exit(1); 1529 } 1530 1531 /* 1532 * if the user wishes to add an EFI partition, we need 1533 * more extensive validation. rsect should be 1, and 1534 * numsect should equal the entire disk capacity - 1 1535 */ 1536 1537 if (id == EFI_PMBR) { 1538 if (rsect != 1) { 1539 (void) fprintf(stderr, 1540 "fdisk: EFI partitions must start at sector" 1541 " 1 (input rsect = %d)\n", rsect); 1542 exit(1); 1543 } 1544 1545 1546 if (dev_capacity > DK_MAX_2TB) { 1547 if (numsect != DK_MAX_2TB) { 1548 (void) fprintf(stderr, 1549 "fdisk: EFI partitions must " 1550 "encompass the entire maximum 2 TB " 1551 "(input numsect: %u - max: %llu)\n", 1552 numsect, (diskaddr_t)DK_MAX_2TB); 1553 exit(1); 1554 } 1555 } else if (numsect != dev_capacity - 1) { 1556 (void) fprintf(stderr, 1557 "fdisk: EFI partitions must encompass the " 1558 "entire disk\n" 1559 "(input numsect: %u - avail: %llu)\n", 1560 numsect, 1561 dev_capacity - 1); 1562 exit(1); 1563 } 1564 } 1565 1566 /* Find unused entry for use and put entry in table */ 1567 if (insert_tbl(id, act, bhead, bsect, bcyl, ehead, esect, 1568 ecyl, rsect, numsect) < 0) { 1569 (void) fprintf(stderr, 1570 "fdisk: Invalid entry could not be inserted:\n" 1571 " \"%s\"\n", 1572 file); 1573 exit(1); 1574 } 1575 1576 /* Make sure new entry does not overlap existing entry */ 1577 if (verify_tbl() < 0) { 1578 (void) fprintf(stderr, 1579 "fdisk: Cannot create partition \"%s\"\n", file); 1580 exit(1); 1581 } 1582 } /* switch funct */ 1583 } 1584 1585 /* 1586 * Set_Table_CHS_Values 1587 * 1588 * This will calculate the CHS values for beginning and ending CHS 1589 * for a single partition table entry (ti) based on the relsect 1590 * and numsect values contained in the partion table entry. 1591 * 1592 * hba_heads and hba_sectors contain the number of heads and sectors. 1593 * 1594 * If the number of cylinders exceeds the MAX_CYL, 1595 * then maximum values will be placed in the corresponding chs entry. 1596 */ 1597 static void 1598 Set_Table_CHS_Values(int ti) 1599 { 1600 uint32_t lba, cy, hd, sc; 1601 1602 lba = (uint32_t)Table[ti].relsect; 1603 if (lba >= hba_heads * hba_sectors * MAX_CYL) { 1604 /* 1605 * the lba address cannot be expressed in CHS value 1606 * so store the maximum CHS field values in the CHS fields. 1607 */ 1608 cy = MAX_CYL + 1; 1609 hd = MAX_HEAD; 1610 sc = MAX_SECT; 1611 } else { 1612 cy = lba / hba_sectors / hba_heads; 1613 hd = lba / hba_sectors % hba_heads; 1614 sc = lba % hba_sectors + 1; 1615 } 1616 Table[ti].begcyl = cy & 0xff; 1617 Table[ti].beghead = (uchar_t)hd; 1618 Table[ti].begsect = (uchar_t)(((cy >> 2) & 0xc0) | sc); 1619 1620 /* 1621 * This code is identical to the code above 1622 * except that it works on ending CHS values 1623 */ 1624 lba = (uint32_t)(Table[ti].relsect + Table[ti].numsect - 1); 1625 if (lba >= hba_heads * hba_sectors * MAX_CYL) { 1626 cy = MAX_CYL + 1; 1627 hd = MAX_HEAD; 1628 sc = MAX_SECT; 1629 } else { 1630 cy = lba / hba_sectors / hba_heads; 1631 hd = lba / hba_sectors % hba_heads; 1632 sc = lba % hba_sectors + 1; 1633 } 1634 Table[ti].endcyl = cy & 0xff; 1635 Table[ti].endhead = (uchar_t)hd; 1636 Table[ti].endsect = (uchar_t)(((cy >> 2) & 0xc0) | sc); 1637 } 1638 1639 /* 1640 * insert_tbl 1641 * Insert entry into fdisk table. Check all user-supplied values 1642 * for the entry, but not the validity relative to other table 1643 * entries! 1644 */ 1645 static int 1646 insert_tbl( 1647 int id, int act, 1648 int bhead, int bsect, int bcyl, 1649 int ehead, int esect, int ecyl, 1650 uint32_t rsect, uint32_t numsect) 1651 { 1652 int i; 1653 1654 /* validate partition size */ 1655 if (((diskaddr_t)rsect + numsect) > dev_capacity) { 1656 (void) fprintf(stderr, 1657 "fdisk: Partition table exceeds the size of the disk.\n"); 1658 return (-1); 1659 } 1660 1661 1662 /* find UNUSED partition table entry */ 1663 for (i = 0; i < FD_NUMPART; i++) { 1664 if (Table[i].systid == UNUSED) { 1665 break; 1666 } 1667 } 1668 if (i >= FD_NUMPART) { 1669 (void) fprintf(stderr, "fdisk: Partition table is full.\n"); 1670 return (-1); 1671 } 1672 1673 1674 Table[i].systid = (uchar_t)id; 1675 Table[i].bootid = (uchar_t)act; 1676 Table[i].numsect = lel(numsect); 1677 Table[i].relsect = lel(rsect); 1678 1679 /* 1680 * If we have been called with a valid geometry, use it 1681 * valid means non-zero values that fit in the BIOS fields 1682 */ 1683 if (0 < bsect && bsect <= MAX_SECT && 1684 0 <= bhead && bhead <= MAX_HEAD && 1685 0 < esect && esect <= MAX_SECT && 1686 0 <= ehead && ehead <= MAX_HEAD) { 1687 if (bcyl > MAX_CYL) 1688 bcyl = MAX_CYL + 1; 1689 if (ecyl > MAX_CYL) 1690 ecyl = MAX_CYL + 1; 1691 Table[i].begcyl = bcyl & 0xff; 1692 Table[i].endcyl = ecyl & 0xff; 1693 Table[i].beghead = (uchar_t)bhead; 1694 Table[i].endhead = (uchar_t)ehead; 1695 Table[i].begsect = (uchar_t)(((bcyl >> 2) & 0xc0) | bsect); 1696 Table[i].endsect = ((ecyl >> 2) & 0xc0) | esect; 1697 } else { 1698 1699 /* 1700 * The specified values are invalid, 1701 * so calculate the values based on hba_heads, hba_sectors 1702 */ 1703 Set_Table_CHS_Values(i); 1704 } 1705 1706 /* 1707 * return partition index 1708 */ 1709 return (i); 1710 } 1711 1712 /* 1713 * entry_from_old_table 1714 * If the specified entry is in the old table and is not a Solaris entry 1715 * then insert same entry into new fdisk table. If we do this then 1716 * all checks are skipped for that entry! 1717 */ 1718 static int 1719 entry_from_old_table( 1720 int id, int act, 1721 int bhead, int bsect, int bcyl, 1722 int ehead, int esect, int ecyl, 1723 uint32_t rsect, uint32_t numsect) 1724 { 1725 uint32_t i, j; 1726 1727 if (id == SUNIXOS || id == SUNIXOS2) 1728 return (0); 1729 for (i = 0; i < FD_NUMPART - 1; i++) { 1730 if (Old_Table[i].systid == id && 1731 Old_Table[i].bootid == act && 1732 Old_Table[i].beghead == bhead && 1733 Old_Table[i].begsect == ((bsect & 0x3f) | 1734 (uchar_t)((bcyl>>2) & 0xc0)) && 1735 Old_Table[i].begcyl == (uchar_t)(bcyl & 0xff) && 1736 Old_Table[i].endhead == ehead && 1737 Old_Table[i].endsect == ((esect & 0x3f) | 1738 (uchar_t)((ecyl>>2) & 0xc0)) && 1739 Old_Table[i].endcyl == (uchar_t)(ecyl & 0xff) && 1740 Old_Table[i].relsect == lel(rsect) && 1741 Old_Table[i].numsect == lel(numsect)) { 1742 /* find UNUSED partition table entry */ 1743 for (j = 0; j < FD_NUMPART; j++) { 1744 if (Table[j].systid == UNUSED) { 1745 (void) memcpy(&Table[j], &Old_Table[i], 1746 sizeof (Table[0])); 1747 skip_verify[j] = 1; 1748 return (1); 1749 1750 } 1751 } 1752 return (0); 1753 } 1754 1755 } 1756 return (0); 1757 } 1758 1759 /* 1760 * verify_tbl 1761 * Verify that no partition entries overlap or exceed the size of 1762 * the disk. 1763 */ 1764 static int 1765 verify_tbl(void) 1766 { 1767 uint32_t i, j, rsect, numsect; 1768 int noMoreParts = 0; 1769 int numParts = 0; 1770 1771 /* Make sure new entry does not overlap an existing entry */ 1772 for (i = 0; i < FD_NUMPART - 1; i++) { 1773 if (Table[i].systid != UNUSED) { 1774 numParts++; 1775 /* 1776 * No valid partitions allowed after an UNUSED or 1777 * EFI_PMBR part 1778 */ 1779 if (noMoreParts) { 1780 return (-1); 1781 } 1782 1783 /* 1784 * EFI_PMBR partitions must be the only partition 1785 * and must be Table entry 0 1786 */ 1787 if (Table[i].systid == EFI_PMBR) { 1788 if (i == 0) { 1789 noMoreParts = 1; 1790 } else { 1791 return (-1); 1792 } 1793 1794 if (Table[i].relsect != 1) { 1795 (void) fprintf(stderr, "ERROR: " 1796 "Invalid starting sector " 1797 "for EFI_PMBR partition:\n" 1798 "relsect %d " 1799 "(should be 1)\n", 1800 Table[i].relsect); 1801 1802 return (-1); 1803 } 1804 1805 if (Table[i].numsect != dev_capacity - 1) { 1806 (void) fprintf(stderr, "ERROR: " 1807 "EFI_PMBR partition must " 1808 "encompass the entire " 1809 "disk.\n numsect %d - " 1810 "actual %llu\n", 1811 Table[i].numsect, 1812 dev_capacity - 1); 1813 1814 return (-1); 1815 } 1816 } 1817 1818 /* make sure the partition isn't larger than the disk */ 1819 rsect = lel(Table[i].relsect); 1820 numsect = lel(Table[i].numsect); 1821 1822 if ((((diskaddr_t)rsect + numsect) > dev_capacity) || 1823 (((diskaddr_t)rsect + numsect) > DK_MAX_2TB)) { 1824 if (!skip_verify[i]) 1825 return (-1); 1826 } 1827 1828 for (j = i + 1; j < FD_NUMPART; j++) { 1829 if (Table[j].systid != UNUSED) { 1830 uint32_t t_relsect = 1831 lel(Table[j].relsect); 1832 uint32_t t_numsect = 1833 lel(Table[j].numsect); 1834 1835 if (noMoreParts) { 1836 (void) fprintf(stderr, 1837 "Cannot add partition to " 1838 "table; no more partitions " 1839 "allowed\n"); 1840 1841 if (io_debug) { 1842 (void) fprintf(stderr, 1843 "DEBUG: Current " 1844 "partition:\t" 1845 "%d:%d:%d:%d:%d:" 1846 "%d:%d:%d:%d:%d\n" 1847 " Next " 1848 "partition:\t\t" 1849 "%d:%d:%d:%d:%d:" 1850 "%d:%d:%d:%d:%d\n", 1851 Table[i].systid, 1852 Table[i].bootid, 1853 Table[i].begcyl, 1854 Table[i].beghead, 1855 Table[i].begsect, 1856 Table[i].endcyl, 1857 Table[i].endhead, 1858 Table[i].endsect, 1859 Table[i].relsect, 1860 Table[i].numsect, 1861 Table[j].systid, 1862 Table[j].bootid, 1863 Table[j].begcyl, 1864 Table[j].beghead, 1865 Table[j].begsect, 1866 Table[j].endcyl, 1867 Table[j].endhead, 1868 Table[j].endsect, 1869 Table[j].relsect, 1870 Table[j].numsect); 1871 } 1872 1873 return (-1); 1874 } 1875 if ((rsect >= 1876 (t_relsect + t_numsect)) || 1877 ((rsect + numsect) <= t_relsect)) { 1878 continue; 1879 } else { 1880 (void) fprintf(stderr, "ERROR: " 1881 "current partition overlaps" 1882 " following partition\n"); 1883 1884 return (-1); 1885 } 1886 } 1887 } 1888 } else { 1889 noMoreParts = 1; 1890 } 1891 } 1892 if (Table[i].systid != UNUSED) { 1893 if (noMoreParts) 1894 return (-1); 1895 if (!skip_verify[i] && 1896 ((((diskaddr_t)lel(Table[i].relsect) + 1897 lel(Table[i].numsect)) > dev_capacity) || 1898 (((diskaddr_t)lel(Table[i].relsect) + 1899 lel(Table[i].numsect)) > DK_MAX_2TB))) { 1900 return (-1); 1901 } 1902 } 1903 1904 return (numParts); 1905 } 1906 1907 /* 1908 * pars_fdisk 1909 * Parse user-supplied data to set up fdisk partitions 1910 * (-A, -D, -F). 1911 */ 1912 static int 1913 pars_fdisk( 1914 char *line, 1915 int *id, int *act, 1916 int *bhead, int *bsect, int *bcyl, 1917 int *ehead, int *esect, int *ecyl, 1918 uint32_t *rsect, uint32_t *numsect) 1919 { 1920 int i; 1921 if (line[0] == '\0' || line[0] == '\n' || line[0] == '*') 1922 return (1); 1923 line[strlen(line)] = '\0'; 1924 for (i = 0; i < strlen(line); i++) { 1925 if (line[i] == '\0') { 1926 break; 1927 } else if (line[i] == ':') { 1928 line[i] = ' '; 1929 } 1930 } 1931 if (sscanf(line, "%d %d %d %d %d %d %d %d %u %u", 1932 id, act, bhead, bsect, bcyl, ehead, esect, ecyl, 1933 rsect, numsect) != 10) { 1934 (void) fprintf(stderr, "Syntax error:\n \"%s\".\n", line); 1935 exit(1); 1936 } 1937 return (0); 1938 } 1939 1940 /* 1941 * validate_part 1942 * Validate that a new partition does not start at sector 0. Only UNUSED 1943 * partitions and previously existing partitions are allowed to start at 0. 1944 */ 1945 static int 1946 validate_part(int id, uint32_t rsect, uint32_t numsect) 1947 { 1948 int i; 1949 if ((id != UNUSED) && (rsect == 0)) { 1950 for (i = 0; i < FD_NUMPART; i++) { 1951 if ((Old_Table[i].systid == id) && 1952 (Old_Table[i].relsect == lel(rsect)) && 1953 (Old_Table[i].numsect == lel(numsect))) 1954 return (0); 1955 } 1956 (void) fprintf(stderr, 1957 "New partition cannot start at sector 0\n"); 1958 return (-1); 1959 } 1960 return (0); 1961 } 1962 1963 /* 1964 * stage0 1965 * Print out interactive menu and process user input. 1966 */ 1967 static void 1968 stage0(void) 1969 { 1970 dispmenu(); 1971 for (;;) { 1972 (void) printf(Q_LINE); 1973 (void) printf("Enter Selection: "); 1974 (void) gets(s); 1975 rm_blanks(s); 1976 while (!((s[0] > '0') && (s[0] < '7') && (s[1] == 0))) { 1977 (void) printf(E_LINE); /* Clear any previous error */ 1978 (void) printf( 1979 "Enter a one-digit number between 1 and 6."); 1980 (void) printf(Q_LINE); 1981 (void) printf("Enter Selection: "); 1982 (void) gets(s); 1983 rm_blanks(s); 1984 } 1985 (void) printf(E_LINE); 1986 switch (s[0]) { 1987 case '1': 1988 if (pcreate() == -1) 1989 return; 1990 break; 1991 case '2': 1992 if (pchange() == -1) 1993 return; 1994 break; 1995 case '3': 1996 if (pdelete() == -1) 1997 return; 1998 break; 1999 case '4': 2000 if (ppartid() == -1) 2001 return; 2002 break; 2003 case '5': 2004 /* update disk partition table, if changed */ 2005 if (TableChanged() == 1) { 2006 copy_Table_to_Bootblk(); 2007 dev_mboot_write(0, Bootsect, sectsiz); 2008 } 2009 /* 2010 * If the VTOC table is wrong fix it 2011 * (truncate only) 2012 */ 2013 if (io_adjt) { 2014 fix_slice(); 2015 } 2016 (void) close(Dev); 2017 exit(0); 2018 /* FALLTHRU */ 2019 case '6': 2020 /* 2021 * If the VTOC table is wrong fix it 2022 * (truncate only) 2023 */ 2024 if (io_adjt) { 2025 fix_slice(); 2026 } 2027 (void) close(Dev); 2028 exit(0); 2029 /* FALLTHRU */ 2030 default: 2031 break; 2032 } 2033 copy_Table_to_Bootblk(); 2034 disptbl(); 2035 dispmenu(); 2036 } 2037 } 2038 2039 /* 2040 * pcreate 2041 * Create partition entry in the table (interactive mode). 2042 */ 2043 static int 2044 pcreate(void) 2045 { 2046 uchar_t tsystid = 'z'; 2047 int i, j; 2048 uint32_t numsect; 2049 int retCode = 0; 2050 2051 i = 0; 2052 for (;;) { 2053 if (i == FD_NUMPART) { 2054 (void) printf(E_LINE); 2055 (void) printf( 2056 "The partition table is full!\n" 2057 "You must delete a partition before creating" 2058 " a new one.\n"); 2059 return (-1); 2060 } 2061 if (Table[i].systid == UNUSED) { 2062 break; 2063 } 2064 i++; 2065 } 2066 2067 numsect = 0; 2068 for (i = 0; i < FD_NUMPART; i++) { 2069 if (Table[i].systid != UNUSED) { 2070 numsect += lel(Table[i].numsect); 2071 } 2072 if (numsect >= chs_capacity) { 2073 (void) printf(E_LINE); 2074 (void) printf("There is no more room on the disk for" 2075 " another partition.\n"); 2076 (void) printf( 2077 "You must delete a partition before creating" 2078 " a new one.\n"); 2079 return (-1); 2080 } 2081 } 2082 while (tsystid == 'z') { 2083 2084 /* 2085 * The question here is expanding to more than what is 2086 * allocated for question lines (Q_LINE) which garbles 2087 * at least warning line. Clearing warning line as workaround 2088 * for now. 2089 */ 2090 2091 (void) printf(W_LINE); 2092 (void) printf(Q_LINE); 2093 (void) printf( 2094 "Select the partition type to create:\n" 2095 " 1=SOLARIS2 2=UNIX 3=PCIXOS 4=Other\n" 2096 " 5=DOS12 6=DOS16 7=DOSEXT 8=DOSBIG\n" 2097 " 9=DOS16LBA A=x86 Boot B=Diagnostic C=FAT32\n" 2098 " D=FAT32LBA E=DOSEXTLBA F=EFI 0=Exit? "); 2099 (void) gets(s); 2100 rm_blanks(s); 2101 if (s[1] != 0) { 2102 (void) printf(E_LINE); 2103 (void) printf("Invalid selection, try again."); 2104 continue; 2105 } 2106 switch (s[0]) { 2107 case '0': /* exit */ 2108 (void) printf(E_LINE); 2109 return (-1); 2110 case '1': /* Solaris partition */ 2111 tsystid = SUNIXOS2; 2112 break; 2113 case '2': /* UNIX partition */ 2114 tsystid = UNIXOS; 2115 break; 2116 case '3': /* PCIXOS partition */ 2117 tsystid = PCIXOS; 2118 break; 2119 case '4': /* OTHEROS System partition */ 2120 tsystid = OTHEROS; 2121 break; 2122 case '5': 2123 tsystid = DOSOS12; /* DOS 12 bit fat */ 2124 break; 2125 case '6': 2126 tsystid = DOSOS16; /* DOS 16 bit fat */ 2127 break; 2128 case '7': 2129 tsystid = EXTDOS; 2130 break; 2131 case '8': 2132 tsystid = DOSHUGE; 2133 break; 2134 case '9': 2135 tsystid = FDISK_FAT95; /* FAT16, need extended int13 */ 2136 break; 2137 case 'a': /* x86 Boot partition */ 2138 case 'A': 2139 tsystid = X86BOOT; 2140 break; 2141 case 'b': /* Diagnostic boot partition */ 2142 case 'B': 2143 tsystid = DIAGPART; 2144 break; 2145 case 'c': /* FAT32 */ 2146 case 'C': 2147 tsystid = FDISK_WINDOWS; 2148 break; 2149 case 'd': /* FAT32 and need extended int13 */ 2150 case 'D': 2151 tsystid = FDISK_EXT_WIN; 2152 break; 2153 case 'e': /* Extended partition, need extended int13 */ 2154 case 'E': 2155 tsystid = FDISK_EXTLBA; 2156 break; 2157 case 'f': 2158 case 'F': 2159 tsystid = EFI_PMBR; 2160 break; 2161 default: 2162 (void) printf(E_LINE); 2163 (void) printf("Invalid selection, try again."); 2164 continue; 2165 } 2166 } 2167 2168 (void) printf(E_LINE); 2169 2170 if (tsystid != EFI_PMBR) { 2171 (void) printf(W_LINE); 2172 if ((dev_capacity > DK_MAX_2TB)) 2173 (void) printf("WARNING: Disk is larger than 2 TB. " 2174 "Upper limit is 2 TB for non-EFI partition ID\n"); 2175 2176 /* create the new partition */ 2177 i = specify(tsystid); 2178 2179 if (i != -1) { 2180 /* see if it should be the active partition */ 2181 (void) printf(E_LINE); 2182 (void) printf(Q_LINE); 2183 2184 (void) printf( 2185 "Should this become the active partition? If " 2186 "yes, it will be activated\n" 2187 "each time the computer is reset or turned on.\n" 2188 "Please type \"y\" or \"n\". "); 2189 2190 if (yesno()) { 2191 (void) printf(E_LINE); 2192 for (j = 0; j < FD_NUMPART; j++) { 2193 if (j == i) { 2194 Table[j].bootid = ACTIVE; 2195 (void) printf(E_LINE); 2196 (void) printf( 2197 "Partition %d is now " 2198 "the active partition.", 2199 j + 1); 2200 } else { 2201 Table[j].bootid = 0; 2202 } 2203 } 2204 } else { 2205 Table[i].bootid = 0; 2206 } 2207 2208 /* set up the return code */ 2209 i = 1; 2210 } 2211 } else { 2212 /* 2213 * partitions of type EFI_PMBR must be the only partitions in 2214 * the table 2215 * 2216 * First, make sure there were no errors the table is 2217 * empty 2218 */ 2219 retCode = verify_tbl(); 2220 2221 if (retCode < 0) { 2222 (void) fprintf(stderr, 2223 "fdisk: Cannot create EFI partition table; \n" 2224 "current partition table is invalid.\n"); 2225 return (-1); 2226 } else if (retCode > 0) { 2227 (void) printf( 2228 "An EFI partition must be the only partition on " 2229 "disk. You may manually delete existing\n" 2230 "partitions, or fdisk can do it.\n" 2231 "Do you want fdisk to destroy existing " 2232 "partitions?\n" 2233 "Please type \"y\" or \"n\". "); 2234 2235 if (yesno()) { 2236 nulltbl(); 2237 } else { 2238 return (-1); 2239 } 2240 } 2241 2242 /* create the table entry - i should be 0 */ 2243 i = insert_tbl(tsystid, 0, 0, 0, 0, 0, 0, 0, 1, 2244 (dev_capacity > DK_MAX_2TB) ? DK_MAX_2TB: 2245 (dev_capacity - 1)); 2246 2247 if (i != 0) { 2248 (void) printf("Error creating EFI partition!!!\n"); 2249 i = -1; 2250 } else { 2251 2252 /* EFI partitions are currently never active */ 2253 Table[i].bootid = 0; 2254 2255 /* set up the return code */ 2256 i = 1; 2257 } 2258 } 2259 2260 return (i); 2261 } 2262 2263 /* 2264 * specify 2265 * Query the user to specify the size of the new partition in 2266 * terms of percentage of the disk or by specifying the starting 2267 * cylinder and length in cylinders. 2268 */ 2269 static int 2270 specify(uchar_t tsystid) 2271 { 2272 int i, j, percent = -1; 2273 int cyl, cylen; 2274 diskaddr_t first_free, size_free; 2275 diskaddr_t max_free; 2276 int cyl_size; 2277 struct ipart *partition[FD_NUMPART]; 2278 2279 cyl_size = heads * sectors; 2280 2281 /* 2282 * make a local copy of the partition table 2283 * and sort it into relsect order 2284 */ 2285 for (i = 0; i < FD_NUMPART; i++) 2286 partition[i] = &Table[i]; 2287 2288 for (i = 0; i < FD_NUMPART - 1; i++) { 2289 if (partition[i]->systid == UNUSED) 2290 break; 2291 for (j = i + 1; j < FD_NUMPART; j++) { 2292 if (partition[j]->systid == UNUSED) 2293 break; 2294 if (lel(partition[j]->relsect) < 2295 lel(partition[i]->relsect)) { 2296 struct ipart *temp = partition[i]; 2297 partition[i] = partition[j]; 2298 partition[j] = temp; 2299 } 2300 } 2301 } 2302 2303 2304 (void) printf(Q_LINE); 2305 (void) printf( 2306 "Specify the percentage of disk to use for this partition\n" 2307 "(or type \"c\" to specify the size in cylinders). "); 2308 (void) gets(s); 2309 rm_blanks(s); 2310 if (s[0] != 'c') { /* Specify size in percentage of disk */ 2311 i = 0; 2312 while (s[i] != '\0') { 2313 if (s[i] < '0' || s[i] > '9') { 2314 (void) printf(E_LINE); 2315 (void) printf("Invalid percentage value " 2316 "specified; retry the operation."); 2317 return (-1); 2318 } 2319 i++; 2320 if (i > 3) { 2321 (void) printf(E_LINE); 2322 (void) printf("Invalid percentage value " 2323 "specified; retry the operation."); 2324 return (-1); 2325 } 2326 } 2327 if ((percent = atoi(s)) > 100) { 2328 (void) printf(E_LINE); 2329 (void) printf( 2330 "Percentage value is too large. The value must be" 2331 " between 1 and 100;\nretry the operation.\n"); 2332 return (-1); 2333 } 2334 if (percent < 1) { 2335 (void) printf(E_LINE); 2336 (void) printf( 2337 "Percentage value is too small. The value must be" 2338 " between 1 and 100;\nretry the operation.\n"); 2339 return (-1); 2340 } 2341 2342 if (percent == 100) 2343 cylen = Numcyl_usable - 1; 2344 else 2345 cylen = (Numcyl_usable * percent) / 100; 2346 2347 /* Verify DOS12 partition doesn't exceed max size of 32MB. */ 2348 if ((tsystid == DOSOS12) && 2349 ((long)((long)cylen * cyl_size) > MAXDOS)) { 2350 int n; 2351 n = MAXDOS * 100 / (int)(cyl_size) / Numcyl_usable; 2352 (void) printf(E_LINE); 2353 (void) printf("Maximum size for a DOS partition " 2354 "is %d%%; retry the operation.", 2355 n <= 100 ? n : 100); 2356 return (-1); 2357 } 2358 2359 2360 max_free = 0; 2361 for (i = 0; i < FD_NUMPART; i++) { 2362 2363 /* 2364 * check for free space before partition i 2365 * where i varies from 0 to 3 2366 * 2367 * freespace after partition 3 is unusable 2368 * because there are no free partitions 2369 * 2370 * freespace begins at the end of previous partition 2371 * or cylinder 1 2372 */ 2373 if (i) { 2374 /* Not an empty table */ 2375 first_free = lel(partition[i - 1]->relsect) + 2376 lel(partition[i - 1]->numsect); 2377 } else { 2378 first_free = cyl_size; 2379 } 2380 2381 /* 2382 * freespace ends before the current partition 2383 * or the end of the disk (chs end) 2384 */ 2385 if (partition[i]->systid == UNUSED) { 2386 size_free = chs_capacity - first_free; 2387 } else { 2388 /* 2389 * Partition might start before cylinder 1. 2390 * Make sure free space is not negative. 2391 */ 2392 size_free = 2393 (lel(partition[i]->relsect > first_free)) ? 2394 (lel(partition[i]->relsect) - first_free) : 2395 0; 2396 } 2397 2398 /* save largest free space */ 2399 if (max_free < size_free) 2400 max_free = size_free; 2401 2402 if (((uint64_t)cylen * cyl_size) <= size_free) { 2403 /* We found a place to use */ 2404 break; 2405 } 2406 if (partition[i]->systid == UNUSED) { 2407 (void) printf(E_LINE); 2408 max_free /= (cyl_size); 2409 (void) fprintf(stderr, "fdisk: " 2410 "Maximum percentage available is %lld\n", 2411 100 * max_free / Numcyl_usable); 2412 return (-1); 2413 } 2414 } 2415 2416 (void) printf(E_LINE); 2417 if (i >= FD_NUMPART) { 2418 (void) fprintf(stderr, 2419 "fdisk: Partition table is full.\n"); 2420 return (-1); 2421 } 2422 2423 if ((i = insert_tbl(tsystid, 0, 0, 0, 0, 0, 0, 0, 2424 first_free, cylen * cyl_size)) >= 0) { 2425 return (i); 2426 } 2427 return (-1); 2428 } else { 2429 2430 /* Specifying size in cylinders */ 2431 (void) printf(E_LINE); 2432 (void) printf(Q_LINE); 2433 (void) printf("Enter starting cylinder number: "); 2434 if ((cyl = getcyl()) == -1) { 2435 (void) printf(E_LINE); 2436 (void) printf("Invalid number; retry the operation."); 2437 return (-1); 2438 } 2439 if (cyl == 0) { 2440 (void) printf(E_LINE); 2441 (void) printf( 2442 "New partition cannot start at cylinder 0.\n"); 2443 return (-1); 2444 } 2445 2446 2447 if (cyl >= Numcyl_usable) { 2448 (void) printf(E_LINE); 2449 (void) printf( 2450 "Cylinder %d is out of bounds, " 2451 "the maximum is %d.\n", 2452 cyl, Numcyl_usable - 1); 2453 return (-1); 2454 } 2455 2456 (void) printf(Q_LINE); 2457 (void) printf("Enter partition size in cylinders: "); 2458 if ((cylen = getcyl()) == -1) { 2459 (void) printf(E_LINE); 2460 (void) printf("Invalid number, retry the operation."); 2461 return (-1); 2462 } 2463 2464 for (i = 0; i < FD_NUMPART; i++) { 2465 uint32_t t_relsect, t_numsect; 2466 2467 if (partition[i]->systid == UNUSED) 2468 break; 2469 t_relsect = lel(partition[i]->relsect); 2470 t_numsect = lel(partition[i]->numsect); 2471 2472 if (cyl * cyl_size >= t_relsect && 2473 cyl * cyl_size < t_relsect + t_numsect) { 2474 (void) printf(E_LINE); 2475 (void) printf( 2476 "Cylinder %d is already allocated" 2477 "\nretry the operation.", 2478 cyl); 2479 return (-1); 2480 } 2481 2482 if (cyl * cyl_size < t_relsect && 2483 (cyl + cylen - 1) * cyl_size > t_relsect) { 2484 (void) printf(E_LINE); 2485 (void) printf( 2486 "Maximum size for partition is %u cylinders" 2487 "\nretry the operation.", 2488 (t_relsect - cyl * cyl_size) / cyl_size); 2489 return (-1); 2490 } 2491 } 2492 2493 /* Verify partition doesn't exceed disk size or 2 TB */ 2494 if (cyl + cylen > Numcyl_usable) { 2495 (void) printf(E_LINE); 2496 if (Numcyl > Numcyl_usable) { 2497 (void) printf( 2498 "Maximum size for partition is %d " 2499 "cylinders; \nretry the operation.", 2500 Numcyl_usable - cyl); 2501 } else { 2502 (void) printf( 2503 "Maximum size for partition is %d " 2504 "cylinders; \nretry the operation.", 2505 Numcyl_usable - cyl); 2506 } 2507 return (-1); 2508 } 2509 2510 /* Verify DOS12 partition doesn't exceed max size of 32MB. */ 2511 if ((tsystid == DOSOS12) && 2512 ((long)((long)cylen * cyl_size) > MAXDOS)) { 2513 (void) printf(E_LINE); 2514 (void) printf( 2515 "Maximum size for a %s partition is %ld cylinders;" 2516 "\nretry the operation.", 2517 Dstr, MAXDOS / (int)(cyl_size)); 2518 return (-1); 2519 } 2520 2521 (void) printf(E_LINE); 2522 i = insert_tbl(tsystid, 0, 0, 0, 0, 0, 0, 0, 2523 cyl * cyl_size, cylen * cyl_size); 2524 if (i < 0) 2525 return (-1); 2526 2527 if (verify_tbl() < 0) { 2528 (void) printf(E_LINE); 2529 (void) printf("fdisk: Cannot create partition table\n"); 2530 return (-1); 2531 } 2532 2533 return (i); 2534 } 2535 } 2536 2537 /* 2538 * dispmenu 2539 * Display command menu (interactive mode). 2540 */ 2541 static void 2542 dispmenu(void) 2543 { 2544 (void) printf(M_LINE); 2545 (void) printf( 2546 "SELECT ONE OF THE FOLLOWING:\n" 2547 " 1. Create a partition\n" 2548 " 2. Specify the active partition\n" 2549 " 3. Delete a partition\n" 2550 " 4. Change between Solaris and Solaris2 Partition IDs\n" 2551 " 5. Exit (update disk configuration and exit)\n" 2552 " 6. Cancel (exit without updating disk configuration)\n"); 2553 } 2554 2555 /* 2556 * pchange 2557 * Change the ACTIVE designation of a partition. 2558 */ 2559 static int 2560 pchange(void) 2561 { 2562 char s[80]; 2563 int i, j; 2564 2565 for (;;) { 2566 (void) printf(Q_LINE); 2567 { 2568 (void) printf( 2569 "Specify the partition number to boot from" 2570 " (or specify 0 for none): "); 2571 } 2572 (void) gets(s); 2573 rm_blanks(s); 2574 if ((s[1] != 0) || (s[0] < '0') || (s[0] > '4')) { 2575 (void) printf(E_LINE); 2576 (void) printf( 2577 "Invalid response, please specify a number" 2578 " between 0 and 4.\n"); 2579 } else { 2580 break; 2581 } 2582 } 2583 if (s[0] == '0') { /* No active partitions */ 2584 for (i = 0; i < FD_NUMPART; i++) { 2585 if (Table[i].systid != UNUSED && 2586 Table[i].bootid == ACTIVE) 2587 Table[i].bootid = 0; 2588 } 2589 (void) printf(E_LINE); 2590 (void) printf( 2591 "No partition is currently marked as active."); 2592 return (0); 2593 } else { /* User has selected a partition to be active */ 2594 i = s[0] - '1'; 2595 if (Table[i].systid == UNUSED) { 2596 (void) printf(E_LINE); 2597 (void) printf("Partition does not exist."); 2598 return (-1); 2599 } 2600 /* a DOS-DATA or EXT-DOS partition cannot be active */ 2601 else if ((Table[i].systid == DOSDATA) || 2602 (Table[i].systid == EXTDOS) || 2603 (Table[i].systid == FDISK_EXTLBA)) { 2604 (void) printf(E_LINE); 2605 (void) printf( 2606 "DOS-DATA, EXT_DOS and EXT_DOS_LBA partitions " 2607 "cannot be made active.\n"); 2608 (void) printf("Select another partition."); 2609 return (-1); 2610 } 2611 Table[i].bootid = ACTIVE; 2612 for (j = 0; j < FD_NUMPART; j++) { 2613 if (j != i) 2614 Table[j].bootid = 0; 2615 } 2616 } 2617 (void) printf(E_LINE); 2618 { 2619 (void) printf( 2620 "Partition %d is now active. The system will start up" 2621 " from this\n", i + 1); 2622 (void) printf("partition after the next reboot."); 2623 } 2624 return (1); 2625 } 2626 2627 /* 2628 * Change between SOLARIS and SOLARIS2 partition id 2629 */ 2630 static int 2631 ppartid(void) 2632 { 2633 char *p, s[80]; 2634 int i; 2635 2636 for (;;) { 2637 (void) printf(Q_LINE); 2638 (void) printf("Specify the partition number to change" 2639 " (or enter 0 to exit): "); 2640 if (!fgets(s, sizeof (s), stdin)) 2641 return (1); 2642 i = strtol(s, &p, 10); 2643 2644 if (*p != '\n' || i < 0 || i > FD_NUMPART) { 2645 (void) printf(E_LINE); 2646 (void) printf( 2647 "Invalid response, retry the operation.\n"); 2648 continue; 2649 } 2650 2651 if (i == 0) { 2652 /* exit delete command */ 2653 (void) printf(E_LINE); /* clear error message */ 2654 return (1); 2655 } 2656 2657 i -= 1; 2658 if (Table[i].systid == SUNIXOS) { 2659 Table[i].systid = SUNIXOS2; 2660 } else if (Table[i].systid == SUNIXOS2) { 2661 Table[i].systid = SUNIXOS; 2662 } else { 2663 (void) printf(E_LINE); 2664 (void) printf( 2665 "Partition %d is not a Solaris partition.", 2666 i + 1); 2667 continue; 2668 } 2669 2670 (void) printf(E_LINE); 2671 (void) printf("Partition %d has been changed.", i + 1); 2672 return (1); 2673 } 2674 } 2675 2676 /* 2677 * pdelete 2678 * Remove partition entry from the table (interactive mode). 2679 */ 2680 static char 2681 pdelete(void) 2682 { 2683 char s[80]; 2684 int i, j; 2685 char pactive; 2686 2687 DEL1: (void) printf(Q_LINE); 2688 (void) printf("Specify the partition number to delete" 2689 " (or enter 0 to exit): "); 2690 (void) gets(s); 2691 rm_blanks(s); 2692 if ((s[0] == '0')) { /* exit delete command */ 2693 (void) printf(E_LINE); /* clear error message */ 2694 return (1); 2695 } 2696 /* Accept only a single digit between 1 and 4 */ 2697 if (s[1] != 0 || (i = atoi(s)) < 1 || i > FD_NUMPART) { 2698 (void) printf(E_LINE); 2699 (void) printf("Invalid response, retry the operation.\n"); 2700 goto DEL1; 2701 } else { /* Found a digit between 1 and 4 */ 2702 --i; /* Structure begins with element 0 */ 2703 } 2704 2705 if (Table[i].systid == UNUSED) { 2706 (void) printf(E_LINE); 2707 (void) printf("Partition %d does not exist.", i + 1); 2708 return (-1); 2709 } 2710 2711 (void) printf(Q_LINE); 2712 (void) printf("Are you sure you want to delete partition %d?" 2713 " This will make all files and \n", i + 1); 2714 (void) printf("programs in this partition inaccessible (type" 2715 " \"y\" or \"n\"). "); 2716 2717 (void) printf(E_LINE); 2718 if (! yesno()) { 2719 return (1); 2720 } 2721 2722 if (Table[i].bootid == ACTIVE) { 2723 pactive = 1; 2724 } else { 2725 pactive = 0; 2726 } 2727 2728 for (j = i; j < FD_NUMPART - 1; j++) { 2729 Table[j] = Table[j + 1]; 2730 } 2731 2732 Table[j].systid = UNUSED; 2733 Table[j].numsect = 0; 2734 Table[j].relsect = 0; 2735 Table[j].bootid = 0; 2736 (void) printf(E_LINE); 2737 (void) printf("Partition %d has been deleted.", i + 1); 2738 2739 if (pactive) { 2740 (void) printf(" This was the active partition."); 2741 } 2742 2743 return (1); 2744 } 2745 2746 /* 2747 * rm_blanks 2748 * Remove blanks from strings of user responses. 2749 */ 2750 static void 2751 rm_blanks(char *s) 2752 { 2753 register int i, j; 2754 2755 for (i = 0; i < CBUFLEN; i++) { 2756 if ((s[i] == ' ') || (s[i] == '\t')) 2757 continue; 2758 else 2759 /* Found first non-blank character of the string */ 2760 break; 2761 } 2762 for (j = 0; i < CBUFLEN; j++, i++) { 2763 if ((s[j] = s[i]) == '\0') { 2764 /* Reached end of string */ 2765 return; 2766 } 2767 } 2768 } 2769 2770 /* 2771 * getcyl 2772 * Take the user-specified cylinder number and convert it from a 2773 * string to a decimal value. 2774 */ 2775 static int 2776 getcyl(void) 2777 { 2778 int slen, i, j; 2779 unsigned int cyl; 2780 (void) gets(s); 2781 rm_blanks(s); 2782 slen = strlen(s); 2783 j = 1; 2784 cyl = 0; 2785 for (i = slen - 1; i >= 0; i--) { 2786 if (s[i] < '0' || s[i] > '9') { 2787 return (-1); 2788 } 2789 cyl += (j * (s[i] - '0')); 2790 j *= 10; 2791 } 2792 return (cyl); 2793 } 2794 2795 /* 2796 * disptbl 2797 * Display the current fdisk table; determine percentage 2798 * of the disk used for each partition. 2799 */ 2800 static void 2801 disptbl(void) 2802 { 2803 int i; 2804 unsigned int startcyl, endcyl, length, percent, remainder; 2805 char *stat, *type; 2806 int is_pmbr = 0; 2807 2808 if ((heads == 0) || (sectors == 0)) { 2809 (void) printf("WARNING: critical disk geometry information" 2810 " missing!\n"); 2811 (void) printf("\theads = %d, sectors = %d\n", heads, sectors); 2812 exit(1); 2813 } 2814 2815 (void) printf(HOME); 2816 (void) printf(T_LINE); 2817 (void) printf(" Total disk size is %d cylinders\n", Numcyl); 2818 (void) printf(" Cylinder size is %d (512 byte) blocks\n\n", 2819 heads * sectors); 2820 (void) printf( 2821 " Cylinders\n"); 2822 (void) printf( 2823 " Partition Status Type Start End Length" 2824 " %%\n"); 2825 (void) printf( 2826 " ========= ====== ============ ===== === ======" 2827 " ==="); 2828 for (i = 0; i < FD_NUMPART; i++) { 2829 if (Table[i].systid == UNUSED) { 2830 (void) printf("\n"); 2831 (void) printf(CLR_LIN); 2832 continue; 2833 } 2834 if (Table[i].bootid == ACTIVE) 2835 stat = Actvstr; 2836 else 2837 stat = NAstr; 2838 switch (Table[i].systid) { 2839 case UNIXOS: 2840 type = Ustr; 2841 break; 2842 case SUNIXOS: 2843 type = SUstr; 2844 break; 2845 case SUNIXOS2: 2846 type = SU2str; 2847 break; 2848 case X86BOOT: 2849 type = X86str; 2850 break; 2851 case DOSOS12: 2852 type = Dstr; 2853 break; 2854 case DOSOS16: 2855 type = D16str; 2856 break; 2857 case EXTDOS: 2858 type = EDstr; 2859 break; 2860 case DOSDATA: 2861 type = DDstr; 2862 break; 2863 case DOSHUGE: 2864 type = DBstr; 2865 break; 2866 case PCIXOS: 2867 type = PCstr; 2868 break; 2869 case DIAGPART: 2870 type = DIAGstr; 2871 break; 2872 case FDISK_IFS: 2873 type = IFSstr; 2874 break; 2875 case FDISK_AIXBOOT: 2876 type = AIXstr; 2877 break; 2878 case FDISK_AIXDATA: 2879 type = AIXDstr; 2880 break; 2881 case FDISK_OS2BOOT: 2882 type = OS2str; 2883 break; 2884 case FDISK_WINDOWS: 2885 type = WINstr; 2886 break; 2887 case FDISK_EXT_WIN: 2888 type = EWINstr; 2889 break; 2890 case FDISK_FAT95: 2891 type = FAT95str; 2892 break; 2893 case FDISK_EXTLBA: 2894 type = EXTLstr; 2895 break; 2896 case FDISK_LINUX: 2897 type = LINUXstr; 2898 break; 2899 case FDISK_CPM: 2900 type = CPMstr; 2901 break; 2902 case FDISK_NOVELL3: 2903 type = NOVstr; 2904 break; 2905 case FDISK_QNX4: 2906 type = QNXstr; 2907 break; 2908 case FDISK_QNX42: 2909 type = QNX2str; 2910 break; 2911 case FDISK_QNX43: 2912 type = QNX3str; 2913 break; 2914 case FDISK_LINUXNAT: 2915 type = LINNATstr; 2916 break; 2917 case FDISK_NTFSVOL1: 2918 type = NTFSVOL1str; 2919 break; 2920 case FDISK_NTFSVOL2: 2921 type = NTFSVOL2str; 2922 break; 2923 case FDISK_BSD: 2924 type = BSDstr; 2925 break; 2926 case FDISK_NEXTSTEP: 2927 type = NEXTSTEPstr; 2928 break; 2929 case FDISK_BSDIFS: 2930 type = BSDIFSstr; 2931 break; 2932 case FDISK_BSDISWAP: 2933 type = BSDISWAPstr; 2934 break; 2935 case EFI_PMBR: 2936 type = EFIstr; 2937 if (lel(Table[i].numsect) == DK_MAX_2TB) 2938 is_pmbr = 1; 2939 2940 break; 2941 default: 2942 type = Ostr; 2943 break; 2944 } 2945 startcyl = lel(Table[i].relsect) / 2946 (unsigned long)(heads * sectors); 2947 2948 if (lel(Table[i].numsect) == DK_MAX_2TB) { 2949 endcyl = Numcyl - 1; 2950 length = endcyl - startcyl + 1; 2951 } else { 2952 length = lel(Table[i].numsect) / 2953 (unsigned long)(heads * sectors); 2954 if (lel(Table[i].numsect) % 2955 (unsigned long)(heads * sectors)) 2956 length++; 2957 endcyl = startcyl + length - 1; 2958 } 2959 2960 percent = length * 100 / Numcyl_usable; 2961 if ((remainder = (length * 100 % Numcyl_usable)) != 0) { 2962 if ((remainder * 100 / Numcyl_usable) > 50) { 2963 /* round up */ 2964 percent++; 2965 } 2966 /* Else leave the percent as is since it's already */ 2967 /* rounded down */ 2968 } 2969 if (percent > 100) 2970 percent = 100; 2971 (void) printf( 2972 "\n %d %s %-12.12s %4d %4d %4d" 2973 " %3d", 2974 i + 1, stat, type, startcyl, endcyl, length, percent); 2975 } 2976 2977 /* Print warning message if table is empty */ 2978 if (Table[0].systid == UNUSED) { 2979 (void) printf(W_LINE); 2980 (void) printf("WARNING: no partitions are defined!"); 2981 } else { 2982 /* Clear the warning line */ 2983 (void) printf(W_LINE); 2984 2985 /* Print warning if disk > 2TB and is not EFI PMBR */ 2986 if (!is_pmbr && (dev_capacity > DK_MAX_2TB)) 2987 (void) printf("WARNING: Disk is larger than 2 TB. " 2988 "Upper limit is 2 TB for non-EFI partition ID\n"); 2989 } 2990 } 2991 2992 /* 2993 * print_Table 2994 * Write the detailed fdisk table to standard error for 2995 * the selected disk device. 2996 */ 2997 static void 2998 print_Table(void) 2999 { 3000 int i; 3001 3002 (void) fprintf(stderr, 3003 " SYSID ACT BHEAD BSECT BEGCYL EHEAD ESECT ENDCYL RELSECT" 3004 " NUMSECT\n"); 3005 3006 for (i = 0; i < FD_NUMPART; i++) { 3007 (void) fprintf(stderr, " %-5d ", Table[i].systid); 3008 (void) fprintf(stderr, "%-3d ", Table[i].bootid); 3009 (void) fprintf(stderr, "%-5d ", Table[i].beghead); 3010 (void) fprintf(stderr, "%-5d ", Table[i].begsect & 0x3f); 3011 (void) fprintf(stderr, "%-8d ", 3012 (((uint_t)Table[i].begsect & 0xc0) << 2) + Table[i].begcyl); 3013 3014 (void) fprintf(stderr, "%-5d ", Table[i].endhead); 3015 (void) fprintf(stderr, "%-5d ", Table[i].endsect & 0x3f); 3016 (void) fprintf(stderr, "%-8d ", 3017 (((uint_t)Table[i].endsect & 0xc0) << 2) + Table[i].endcyl); 3018 (void) fprintf(stderr, "%-10u ", lel(Table[i].relsect)); 3019 (void) fprintf(stderr, "%-10u\n", lel(Table[i].numsect)); 3020 3021 } 3022 } 3023 3024 /* 3025 * copy_Table_to_Old_Table 3026 * Copy Table into Old_Table. The function only copies the systid, 3027 * numsect, relsect, and bootid values because they are the only 3028 * ones compared when determining if Table has changed. 3029 */ 3030 static void 3031 copy_Table_to_Old_Table(void) 3032 { 3033 int i; 3034 for (i = 0; i < FD_NUMPART; i++) { 3035 (void) memcpy(&Old_Table[i], &Table[i], sizeof (Table[0])); 3036 } 3037 } 3038 3039 /* 3040 * nulltbl 3041 * Zero out the systid, numsect, relsect, and bootid values in the 3042 * fdisk table. 3043 */ 3044 static void 3045 nulltbl(void) 3046 { 3047 int i; 3048 3049 for (i = 0; i < FD_NUMPART; i++) { 3050 Table[i].systid = UNUSED; 3051 Table[i].numsect = lel(UNUSED); 3052 Table[i].relsect = lel(UNUSED); 3053 Table[i].bootid = 0; 3054 skip_verify[i] = 0; 3055 } 3056 } 3057 3058 /* 3059 * copy_Bootblk_to_Table 3060 * Copy the bytes from the boot record to an internal "Table". 3061 * All unused are padded with zeros starting at offset 446. 3062 */ 3063 static void 3064 copy_Bootblk_to_Table(void) 3065 { 3066 int i, j; 3067 char *bootptr; 3068 struct ipart iparts[FD_NUMPART]; 3069 3070 /* Get an aligned copy of the partition tables */ 3071 (void) memcpy(iparts, Bootblk->parts, sizeof (iparts)); 3072 bootptr = (char *)iparts; /* Points to start of partition table */ 3073 if (les(Bootblk->signature) != MBB_MAGIC) { 3074 /* Signature is missing */ 3075 nulltbl(); 3076 (void) memcpy(Bootblk->bootinst, &BootCod, BOOTSZ); 3077 return; 3078 } 3079 /* 3080 * When the DOS fdisk command deletes a partition, it is not 3081 * recognized by the old algorithm. The algorithm that 3082 * follows looks at each entry in the Bootrec and copies all 3083 * those that are valid. 3084 */ 3085 j = 0; 3086 for (i = 0; i < FD_NUMPART; i++) { 3087 if (iparts[i].systid == 0) { 3088 /* Null entry */ 3089 bootptr += sizeof (struct ipart); 3090 } else { 3091 fill_ipart(bootptr, &Table[j]); 3092 j++; 3093 bootptr += sizeof (struct ipart); 3094 } 3095 } 3096 for (i = j; i < FD_NUMPART; i++) { 3097 Table[i].systid = UNUSED; 3098 Table[i].numsect = lel(UNUSED); 3099 Table[i].relsect = lel(UNUSED); 3100 Table[i].bootid = 0; 3101 3102 } 3103 /* For now, always replace the bootcode with ours */ 3104 (void) memcpy(Bootblk->bootinst, &BootCod, BOOTSZ); 3105 copy_Table_to_Bootblk(); 3106 } 3107 3108 /* 3109 * fill_ipart 3110 * Initialize ipart structure values. 3111 */ 3112 static void 3113 fill_ipart(char *bootptr, struct ipart *partp) 3114 { 3115 #ifdef sparc 3116 /* Packing struct ipart for Sparc */ 3117 partp->bootid = getbyte(&bootptr); 3118 partp->beghead = getbyte(&bootptr); 3119 partp->begsect = getbyte(&bootptr); 3120 partp->begcyl = getbyte(&bootptr); 3121 partp->systid = getbyte(&bootptr); 3122 partp->endhead = getbyte(&bootptr); 3123 partp->endsect = getbyte(&bootptr); 3124 partp->endcyl = getbyte(&bootptr); 3125 partp->relsect = (int32_t)getlong(&bootptr); 3126 partp->numsect = (int32_t)getlong(&bootptr); 3127 #else 3128 *partp = *(struct ipart *)bootptr; 3129 #endif 3130 } 3131 3132 /* 3133 * getbyte, getlong 3134 * Get a byte, a short, or a long (SPARC only). 3135 */ 3136 #ifdef sparc 3137 uchar_t 3138 getbyte(char **bp) 3139 { 3140 uchar_t b; 3141 3142 b = (uchar_t)**bp; 3143 *bp = *bp + 1; 3144 return (b); 3145 } 3146 3147 uint32_t 3148 getlong(char **bp) 3149 { 3150 int32_t b, bh, bl; 3151 3152 bh = ((**bp) << 8) | *(*bp + 1); 3153 *bp += 2; 3154 bl = ((**bp) << 8) | *(*bp + 1); 3155 *bp += 2; 3156 3157 b = (bh << 16) | bl; 3158 return ((uint32_t)b); 3159 } 3160 #endif 3161 3162 /* 3163 * copy_Table_to_Bootblk 3164 * Copy the table into the 512 boot record. Note that the unused 3165 * entries will always be the last ones in the table and they are 3166 * marked with 100 in sysind. The the unused portion of the table 3167 * is padded with zeros in the bytes after the used entries. 3168 */ 3169 static void 3170 copy_Table_to_Bootblk(void) 3171 { 3172 struct ipart *boot_ptr, *tbl_ptr; 3173 3174 boot_ptr = (struct ipart *)Bootblk->parts; 3175 tbl_ptr = (struct ipart *)&Table[0].bootid; 3176 for (; tbl_ptr < (struct ipart *)&Table[FD_NUMPART].bootid; 3177 tbl_ptr++, boot_ptr++) { 3178 if (tbl_ptr->systid == UNUSED) 3179 (void) memset(boot_ptr, 0, sizeof (struct ipart)); 3180 else 3181 (void) memcpy(boot_ptr, tbl_ptr, sizeof (struct ipart)); 3182 } 3183 Bootblk->signature = les(MBB_MAGIC); 3184 } 3185 3186 /* 3187 * TableChanged 3188 * Check for any changes in the partition table. 3189 */ 3190 static int 3191 TableChanged(void) 3192 { 3193 int i, changed; 3194 3195 changed = 0; 3196 for (i = 0; i < FD_NUMPART; i++) { 3197 if (memcmp(&Old_Table[i], &Table[i], sizeof (Table[0])) != 0) { 3198 /* Partition table changed, write back to disk */ 3199 changed = 1; 3200 } 3201 } 3202 3203 return (changed); 3204 } 3205 3206 /* 3207 * ffile_write 3208 * Display contents of partition table to standard output or 3209 * another file name without writing it to the disk (-W file). 3210 */ 3211 static void 3212 ffile_write(char *file) 3213 { 3214 register int i; 3215 FILE *fp; 3216 3217 /* 3218 * If file isn't standard output, then it's a file name. 3219 * Open file and write it. 3220 */ 3221 if (file != (char *)stdout) { 3222 if ((fp = fopen(file, "w")) == NULL) { 3223 (void) fprintf(stderr, 3224 "fdisk: Cannot open output file %s.\n", 3225 file); 3226 exit(1); 3227 } 3228 } 3229 else 3230 fp = stdout; 3231 3232 /* 3233 * Write the fdisk table information 3234 */ 3235 (void) fprintf(fp, "\n* %s default fdisk table\n", Dfltdev); 3236 (void) fprintf(fp, "* Dimensions:\n"); 3237 (void) fprintf(fp, "* %4d bytes/sector\n", sectsiz); 3238 (void) fprintf(fp, "* %4d sectors/track\n", sectors); 3239 (void) fprintf(fp, "* %4d tracks/cylinder\n", heads); 3240 (void) fprintf(fp, "* %4d cylinders\n", Numcyl); 3241 (void) fprintf(fp, "*\n"); 3242 /* Write virtual (HBA) geometry, if required */ 3243 if (v_flag) { 3244 (void) fprintf(fp, "* HBA Dimensions:\n"); 3245 (void) fprintf(fp, "* %4d bytes/sector\n", sectsiz); 3246 (void) fprintf(fp, "* %4d sectors/track\n", hba_sectors); 3247 (void) fprintf(fp, "* %4d tracks/cylinder\n", hba_heads); 3248 (void) fprintf(fp, "* %4d cylinders\n", hba_Numcyl); 3249 (void) fprintf(fp, "*\n"); 3250 } 3251 (void) fprintf(fp, "* systid:\n"); 3252 (void) fprintf(fp, "* 1: DOSOS12\n"); 3253 (void) fprintf(fp, "* 2: PCIXOS\n"); 3254 (void) fprintf(fp, "* 4: DOSOS16\n"); 3255 (void) fprintf(fp, "* 5: EXTDOS\n"); 3256 (void) fprintf(fp, "* 6: DOSBIG\n"); 3257 (void) fprintf(fp, "* 7: FDISK_IFS\n"); 3258 (void) fprintf(fp, "* 8: FDISK_AIXBOOT\n"); 3259 (void) fprintf(fp, "* 9: FDISK_AIXDATA\n"); 3260 (void) fprintf(fp, "* 10: FDISK_0S2BOOT\n"); 3261 (void) fprintf(fp, "* 11: FDISK_WINDOWS\n"); 3262 (void) fprintf(fp, "* 12: FDISK_EXT_WIN\n"); 3263 (void) fprintf(fp, "* 14: FDISK_FAT95\n"); 3264 (void) fprintf(fp, "* 15: FDISK_EXTLBA\n"); 3265 (void) fprintf(fp, "* 18: DIAGPART\n"); 3266 (void) fprintf(fp, "* 65: FDISK_LINUX\n"); 3267 (void) fprintf(fp, "* 82: FDISK_CPM\n"); 3268 (void) fprintf(fp, "* 86: DOSDATA\n"); 3269 (void) fprintf(fp, "* 98: OTHEROS\n"); 3270 (void) fprintf(fp, "* 99: UNIXOS\n"); 3271 (void) fprintf(fp, "* 101: FDISK_NOVELL3\n"); 3272 (void) fprintf(fp, "* 119: FDISK_QNX4\n"); 3273 (void) fprintf(fp, "* 120: FDISK_QNX42\n"); 3274 (void) fprintf(fp, "* 121: FDISK_QNX43\n"); 3275 (void) fprintf(fp, "* 130: SUNIXOS\n"); 3276 (void) fprintf(fp, "* 131: FDISK_LINUXNAT\n"); 3277 (void) fprintf(fp, "* 134: FDISK_NTFSVOL1\n"); 3278 (void) fprintf(fp, "* 135: FDISK_NTFSVOL2\n"); 3279 (void) fprintf(fp, "* 165: FDISK_BSD\n"); 3280 (void) fprintf(fp, "* 167: FDISK_NEXTSTEP\n"); 3281 (void) fprintf(fp, "* 183: FDISK_BSDIFS\n"); 3282 (void) fprintf(fp, "* 184: FDISK_BSDISWAP\n"); 3283 (void) fprintf(fp, "* 190: X86BOOT\n"); 3284 (void) fprintf(fp, "* 191: SUNIXOS2\n"); 3285 (void) fprintf(fp, "* 238: EFI_PMBR\n"); 3286 (void) fprintf(fp, "* 239: EFI_FS\n"); 3287 (void) fprintf(fp, "*\n"); 3288 (void) fprintf(fp, 3289 "\n* Id Act Bhead Bsect Bcyl Ehead Esect Ecyl" 3290 " Rsect Numsect\n"); 3291 3292 for (i = 0; i < FD_NUMPART; i++) { 3293 if (Table[i].systid != UNUSED) 3294 (void) fprintf(fp, 3295 " %-5d %-4d %-6d %-6d %-7d %-6d %-6d %-7d %-10u" 3296 " %-10u\n", 3297 Table[i].systid, 3298 Table[i].bootid, 3299 Table[i].beghead, 3300 Table[i].begsect & 0x3f, 3301 ((Table[i].begcyl & 0xff) | ((Table[i].begsect & 3302 0xc0) << 2)), 3303 Table[i].endhead, 3304 Table[i].endsect & 0x3f, 3305 ((Table[i].endcyl & 0xff) | ((Table[i].endsect & 3306 0xc0) << 2)), 3307 lel(Table[i].relsect), 3308 lel(Table[i].numsect)); 3309 } 3310 if (fp != stdout) 3311 (void) fclose(fp); 3312 } 3313 3314 /* 3315 * fix_slice 3316 * Read the VTOC table on the Solaris partition and check that no 3317 * slices exist that extend past the end of the Solaris partition. 3318 * If no Solaris partition exists, nothing is done. 3319 */ 3320 static void 3321 fix_slice(void) 3322 { 3323 int i; 3324 uint32_t numsect; 3325 3326 if (io_image) { 3327 return; 3328 } 3329 3330 for (i = 0; i < FD_NUMPART; i++) { 3331 if (Table[i].systid == SUNIXOS || Table[i].systid == SUNIXOS2) { 3332 /* 3333 * Only the size matters (not starting point), since 3334 * VTOC entries are relative to the start of 3335 * the partition. 3336 */ 3337 numsect = lel(Table[i].numsect); 3338 break; 3339 } 3340 } 3341 3342 if (i >= FD_NUMPART) { 3343 if (!io_nifdisk) { 3344 (void) fprintf(stderr, 3345 "fdisk: No Solaris partition found - VTOC not" 3346 " checked.\n"); 3347 } 3348 return; 3349 } 3350 3351 if (readvtoc() != VTOC_OK) { 3352 exit(1); /* Failed to read the VTOC */ 3353 } 3354 for (i = 0; i < V_NUMPAR; i++) { 3355 /* Special case for slice two (entire disk) */ 3356 if (i == 2) { 3357 if (disk_vtoc.v_part[i].p_start != 0) { 3358 (void) fprintf(stderr, 3359 "slice %d starts at %llu, is not at" 3360 " start of partition", 3361 i, disk_vtoc.v_part[i].p_start); 3362 if (!io_nifdisk) { 3363 (void) printf(" adjust ?:"); 3364 if (yesno()) 3365 disk_vtoc.v_part[i].p_start = 0; 3366 } else { 3367 disk_vtoc.v_part[i].p_start = 0; 3368 (void) fprintf(stderr, " adjusted!\n"); 3369 } 3370 3371 } 3372 if (disk_vtoc.v_part[i].p_size != numsect) { 3373 (void) fprintf(stderr, 3374 "slice %d size %llu does not cover" 3375 " complete partition", 3376 i, disk_vtoc.v_part[i].p_size); 3377 if (!io_nifdisk) { 3378 (void) printf(" adjust ?:"); 3379 if (yesno()) 3380 disk_vtoc.v_part[i].p_size = 3381 numsect; 3382 } else { 3383 disk_vtoc.v_part[i].p_size = numsect; 3384 (void) fprintf(stderr, " adjusted!\n"); 3385 } 3386 } 3387 if (disk_vtoc.v_part[i].p_tag != V_BACKUP) { 3388 (void) fprintf(stderr, 3389 "slice %d tag was %d should be %d", 3390 i, disk_vtoc.v_part[i].p_tag, 3391 V_BACKUP); 3392 if (!io_nifdisk) { 3393 (void) printf(" fix ?:"); 3394 if (yesno()) 3395 disk_vtoc.v_part[i].p_tag = 3396 V_BACKUP; 3397 } else { 3398 disk_vtoc.v_part[i].p_tag = V_BACKUP; 3399 (void) fprintf(stderr, " fixed!\n"); 3400 } 3401 } 3402 continue; 3403 } 3404 if (io_ADJT) { 3405 if (disk_vtoc.v_part[i].p_start > numsect || 3406 disk_vtoc.v_part[i].p_start + 3407 disk_vtoc.v_part[i].p_size > numsect) { 3408 (void) fprintf(stderr, 3409 "slice %d (start %llu, end %llu)" 3410 " is larger than the partition", 3411 i, disk_vtoc.v_part[i].p_start, 3412 disk_vtoc.v_part[i].p_start + 3413 disk_vtoc.v_part[i].p_size); 3414 if (!io_nifdisk) { 3415 (void) printf(" remove ?:"); 3416 if (yesno()) { 3417 disk_vtoc.v_part[i].p_size = 0; 3418 disk_vtoc.v_part[i].p_start = 0; 3419 disk_vtoc.v_part[i].p_tag = 0; 3420 disk_vtoc.v_part[i].p_flag = 0; 3421 } 3422 } else { 3423 disk_vtoc.v_part[i].p_size = 0; 3424 disk_vtoc.v_part[i].p_start = 0; 3425 disk_vtoc.v_part[i].p_tag = 0; 3426 disk_vtoc.v_part[i].p_flag = 0; 3427 (void) fprintf(stderr, 3428 " removed!\n"); 3429 } 3430 } 3431 continue; 3432 } 3433 if (disk_vtoc.v_part[i].p_start > numsect) { 3434 (void) fprintf(stderr, 3435 "slice %d (start %llu) is larger than the " 3436 "partition", i, disk_vtoc.v_part[i].p_start); 3437 if (!io_nifdisk) { 3438 (void) printf(" remove ?:"); 3439 if (yesno()) { 3440 disk_vtoc.v_part[i].p_size = 0; 3441 disk_vtoc.v_part[i].p_start = 0; 3442 disk_vtoc.v_part[i].p_tag = 0; 3443 disk_vtoc.v_part[i].p_flag = 0; 3444 } 3445 } else { 3446 disk_vtoc.v_part[i].p_size = 0; 3447 disk_vtoc.v_part[i].p_start = 0; 3448 disk_vtoc.v_part[i].p_tag = 0; 3449 disk_vtoc.v_part[i].p_flag = 0; 3450 (void) fprintf(stderr, 3451 " removed!\n"); 3452 } 3453 } else if (disk_vtoc.v_part[i].p_start 3454 + disk_vtoc.v_part[i].p_size > numsect) { 3455 (void) fprintf(stderr, 3456 "slice %d (end %llu) is larger" 3457 " than the partition", 3458 i, 3459 disk_vtoc.v_part[i].p_start + 3460 disk_vtoc.v_part[i].p_size); 3461 if (!io_nifdisk) { 3462 (void) printf(" adjust ?:"); 3463 if (yesno()) { 3464 disk_vtoc.v_part[i].p_size = numsect; 3465 } 3466 } else { 3467 disk_vtoc.v_part[i].p_size = numsect; 3468 (void) fprintf(stderr, " adjusted!\n"); 3469 } 3470 } 3471 } 3472 #if 1 /* bh for now */ 3473 /* Make the VTOC look sane - ha ha */ 3474 disk_vtoc.v_version = V_VERSION; 3475 disk_vtoc.v_sanity = VTOC_SANE; 3476 disk_vtoc.v_nparts = V_NUMPAR; 3477 if (disk_vtoc.v_sectorsz == 0) 3478 disk_vtoc.v_sectorsz = NBPSCTR; 3479 #endif 3480 3481 /* Write the VTOC back to the disk */ 3482 if (!io_readonly) 3483 (void) writevtoc(); 3484 } 3485 3486 /* 3487 * yesno 3488 * Get yes or no answer. Return 1 for yes and 0 for no. 3489 */ 3490 3491 static int 3492 yesno(void) 3493 { 3494 char s[80]; 3495 3496 for (;;) { 3497 (void) gets(s); 3498 rm_blanks(s); 3499 if ((s[1] != 0) || ((s[0] != 'y') && (s[0] != 'n'))) { 3500 (void) printf(E_LINE); 3501 (void) printf("Please answer with \"y\" or \"n\": "); 3502 continue; 3503 } 3504 if (s[0] == 'y') 3505 return (1); 3506 else 3507 return (0); 3508 } 3509 } 3510 3511 /* 3512 * readvtoc 3513 * Read the VTOC from the Solaris partition of the device. 3514 */ 3515 static int 3516 readvtoc(void) 3517 { 3518 int i; 3519 int retval = VTOC_OK; 3520 3521 if ((i = read_extvtoc(Dev, &disk_vtoc)) < VTOC_OK) { 3522 if (i == VT_EINVAL) { 3523 (void) fprintf(stderr, "fdisk: Invalid VTOC.\n"); 3524 vt_inval++; 3525 retval = VTOC_INVAL; 3526 } else if (i == VT_ENOTSUP) { 3527 (void) fprintf(stderr, "fdisk: partition may have EFI " 3528 "GPT\n"); 3529 retval = VTOC_NOTSUP; 3530 } else { 3531 (void) fprintf(stderr, "fdisk: Cannot read VTOC.\n"); 3532 retval = VTOC_RWERR; 3533 } 3534 } 3535 return (retval); 3536 } 3537 3538 /* 3539 * writevtoc 3540 * Write the VTOC to the Solaris partition on the device. 3541 */ 3542 static int 3543 writevtoc(void) 3544 { 3545 int i; 3546 int retval = 0; 3547 3548 if ((i = write_extvtoc(Dev, &disk_vtoc)) != 0) { 3549 if (i == VT_EINVAL) { 3550 (void) fprintf(stderr, 3551 "fdisk: Invalid entry exists in VTOC.\n"); 3552 retval = VTOC_INVAL; 3553 } else if (i == VT_ENOTSUP) { 3554 (void) fprintf(stderr, "fdisk: partition may have EFI " 3555 "GPT\n"); 3556 retval = VTOC_NOTSUP; 3557 } else { 3558 (void) fprintf(stderr, "fdisk: Cannot write VTOC.\n"); 3559 retval = VTOC_RWERR; 3560 } 3561 } 3562 return (retval); 3563 } 3564 3565 /* 3566 * efi_ioctl 3567 * issues DKIOCSETEFI IOCTL 3568 * (duplicate of private efi_ioctl() in rdwr_efi.c 3569 */ 3570 static int 3571 efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc) 3572 { 3573 void *data = dk_ioc->dki_data; 3574 int error; 3575 3576 dk_ioc->dki_data_64 = (uintptr_t)data; 3577 error = ioctl(fd, cmd, (void *)dk_ioc); 3578 3579 return (error); 3580 } 3581 3582 /* 3583 * clear_efi 3584 * Clear EFI labels from the EFI_PMBR partition on the device 3585 * This function is modeled on the libefi(3LIB) call efi_write() 3586 */ 3587 static int 3588 clear_efi(void) 3589 { 3590 struct dk_gpt *efi_vtoc; 3591 dk_efi_t dk_ioc; 3592 3593 /* 3594 * see if we can read the EFI label 3595 */ 3596 if (efi_alloc_and_read(Dev, &efi_vtoc) < 0) { 3597 return (VT_ERROR); 3598 } 3599 3600 /* 3601 * set up the dk_ioc structure for writing 3602 */ 3603 dk_ioc.dki_lba = 1; 3604 dk_ioc.dki_length = EFI_MIN_ARRAY_SIZE + efi_vtoc->efi_lbasize; 3605 3606 if ((dk_ioc.dki_data = calloc(dk_ioc.dki_length, 1)) == NULL) { 3607 return (VT_ERROR); 3608 } 3609 3610 /* 3611 * clear the primary label 3612 */ 3613 if (io_debug) { 3614 (void) fprintf(stderr, 3615 "\tClearing primary EFI label at block %lld\n", 3616 dk_ioc.dki_lba); 3617 } 3618 3619 if (efi_ioctl(Dev, DKIOCSETEFI, &dk_ioc) == -1) { 3620 free(dk_ioc.dki_data); 3621 switch (errno) { 3622 case EIO: 3623 return (VT_EIO); 3624 case EINVAL: 3625 return (VT_EINVAL); 3626 default: 3627 return (VT_ERROR); 3628 } 3629 } 3630 3631 /* 3632 * clear the backup partition table 3633 */ 3634 dk_ioc.dki_lba = efi_vtoc->efi_last_u_lba + 1; 3635 dk_ioc.dki_length -= efi_vtoc->efi_lbasize; 3636 dk_ioc.dki_data++; 3637 if (io_debug) { 3638 (void) fprintf(stderr, 3639 "\tClearing backup partition table at block %lld\n", 3640 dk_ioc.dki_lba); 3641 } 3642 3643 if (efi_ioctl(Dev, DKIOCSETEFI, &dk_ioc) == -1) { 3644 (void) fprintf(stderr, "\tUnable to clear backup EFI label at " 3645 "block %llu; errno %d\n", efi_vtoc->efi_last_u_lba + 1, 3646 errno); 3647 } 3648 3649 /* 3650 * clear the backup label 3651 */ 3652 dk_ioc.dki_lba = efi_vtoc->efi_last_lba; 3653 dk_ioc.dki_length = efi_vtoc->efi_lbasize; 3654 dk_ioc.dki_data--; 3655 if (io_debug) { 3656 (void) fprintf(stderr, "\tClearing backup label at block " 3657 "%lld\n", dk_ioc.dki_lba); 3658 } 3659 3660 if (efi_ioctl(Dev, DKIOCSETEFI, &dk_ioc) == -1) { 3661 (void) fprintf(stderr, 3662 "\tUnable to clear backup EFI label at " 3663 "block %llu; errno %d\n", 3664 efi_vtoc->efi_last_lba, 3665 errno); 3666 } 3667 3668 free(dk_ioc.dki_data); 3669 efi_free(efi_vtoc); 3670 3671 return (0); 3672 } 3673 3674 /* 3675 * clear_vtoc 3676 * Clear the VTOC from the current or previous Solaris partition on the 3677 * device. 3678 */ 3679 static void 3680 clear_vtoc(int table, int part) 3681 { 3682 struct ipart *clr_table; 3683 struct dk_label disk_label; 3684 uint32_t pcyl, ncyl, count; 3685 diskaddr_t backup_block, solaris_offset; 3686 ssize_t bytes; 3687 off_t seek_byte; 3688 3689 #ifdef DEBUG 3690 struct dk_label read_label; 3691 #endif /* DEBUG */ 3692 3693 if (table == OLD) { 3694 clr_table = &Old_Table[part]; 3695 } else { 3696 clr_table = &Table[part]; 3697 } 3698 3699 (void) memset(&disk_label, 0, sizeof (struct dk_label)); 3700 3701 seek_byte = (off_t)(lel(clr_table->relsect) + VTOC_OFFSET) * sectsiz; 3702 3703 if (io_debug) { 3704 (void) fprintf(stderr, 3705 "\tClearing primary VTOC at byte %llu (block %llu)\n", 3706 (uint64_t)seek_byte, 3707 (uint64_t)(lel(clr_table->relsect) + VTOC_OFFSET)); 3708 } 3709 3710 if (lseek(Dev, seek_byte, SEEK_SET) == -1) { 3711 (void) fprintf(stderr, 3712 "\tError seeking to primary label at byte %llu\n", 3713 (uint64_t)seek_byte); 3714 return; 3715 } 3716 3717 bytes = write(Dev, &disk_label, sizeof (struct dk_label)); 3718 3719 if (bytes != sizeof (struct dk_label)) { 3720 (void) fprintf(stderr, 3721 "\tWarning: only %d bytes written to clear primary" 3722 " VTOC!\n", bytes); 3723 } 3724 3725 #ifdef DEBUG 3726 if (lseek(Dev, seek_byte, SEEK_SET) == -1) { 3727 (void) fprintf(stderr, 3728 "DEBUG: Error seeking to primary label at byte %llu\n", 3729 (uint64_t)seek_byte); 3730 return; 3731 } else { 3732 (void) fprintf(stderr, 3733 "DEBUG: Successful lseek() to byte %llu\n", 3734 (uint64_t)seek_byte); 3735 } 3736 3737 bytes = read(Dev, &read_label, sizeof (struct dk_label)); 3738 3739 if (bytes != sizeof (struct dk_label)) { 3740 (void) fprintf(stderr, 3741 "DEBUG: Warning: only %d bytes read of label\n", 3742 bytes); 3743 } 3744 3745 if (memcmp(&disk_label, &read_label, sizeof (struct dk_label)) != 0) { 3746 (void) fprintf(stderr, 3747 "DEBUG: Warning: disk_label and read_label differ!!!\n"); 3748 } else { 3749 (void) fprintf(stderr, "DEBUG Good compare of disk_label and " 3750 "read_label\n"); 3751 } 3752 #endif /* DEBUG */ 3753 3754 /* Clear backup label */ 3755 pcyl = lel(clr_table->numsect) / (heads * sectors); 3756 solaris_offset = lel(clr_table->relsect); 3757 ncyl = pcyl - acyl; 3758 3759 backup_block = ((ncyl + acyl - 1) * 3760 (heads * sectors)) + ((heads - 1) * sectors) + 1; 3761 3762 for (count = 1; count < 6; count++) { 3763 seek_byte = (off_t)(solaris_offset + backup_block) * 512; 3764 3765 if (lseek(Dev, seek_byte, SEEK_SET) == -1) { 3766 (void) fprintf(stderr, 3767 "\tError seeking to backup label at byte %llu on " 3768 "%s.\n", (uint64_t)seek_byte, Dfltdev); 3769 return; 3770 } 3771 3772 if (io_debug) { 3773 (void) fprintf(stderr, "\tClearing backup VTOC at" 3774 " byte %llu (block %llu)\n", 3775 (uint64_t)seek_byte, 3776 (uint64_t)(solaris_offset + backup_block)); 3777 } 3778 3779 bytes = write(Dev, &disk_label, sizeof (struct dk_label)); 3780 3781 if (bytes != sizeof (struct dk_label)) { 3782 (void) fprintf(stderr, 3783 "\t\tWarning: only %d bytes written to " 3784 "clear backup VTOC at block %llu!\n", bytes, 3785 (uint64_t)(solaris_offset + backup_block)); 3786 } 3787 3788 #ifdef DEBUG 3789 if (lseek(Dev, seek_byte, SEEK_SET) == -1) { 3790 (void) fprintf(stderr, 3791 "DEBUG: Error seeking to backup label at byte %llu\n", 3792 (uint64_t)seek_byte); 3793 return; 3794 } else { 3795 (void) fprintf(stderr, 3796 "DEBUG: Successful lseek() to byte %llu\n", 3797 (uint64_t)seek_byte); 3798 } 3799 3800 bytes = read(Dev, &read_label, sizeof (struct dk_label)); 3801 3802 if (bytes != sizeof (struct dk_label)) { 3803 (void) fprintf(stderr, 3804 "DEBUG: Warning: only %d bytes read of backup label\n", 3805 bytes); 3806 } 3807 3808 if (memcmp(&disk_label, &read_label, sizeof (struct dk_label)) != 0) { 3809 (void) fprintf(stderr, 3810 "DEBUG: Warning: disk_label and read_label differ!!!\n"); 3811 } else { 3812 (void) fprintf(stderr, 3813 "DEBUG: Good compare of disk_label and backup " 3814 "read_label\n"); 3815 } 3816 #endif /* DEBUG */ 3817 3818 backup_block += 2; 3819 } 3820 } 3821 3822 #define FDISK_STANDARD_LECTURE \ 3823 "Fdisk is normally used with the device that " \ 3824 "represents the entire fixed disk.\n" \ 3825 "(For example, /dev/rdsk/c0d0p0 on x86 or " \ 3826 "/dev/rdsk/c0t5d0s2 on sparc).\n" 3827 3828 #define FDISK_LECTURE_NOT_SECTOR_ZERO \ 3829 "The device does not appear to include absolute\n" \ 3830 "sector 0 of the PHYSICAL disk " \ 3831 "(the normal location for an fdisk table).\n" 3832 3833 #define FDISK_LECTURE_NOT_FULL \ 3834 "The device does not appear to encompass the entire PHYSICAL disk.\n" 3835 3836 #define FDISK_LECTURE_NO_VTOC \ 3837 "Unable to find a volume table of contents.\n" \ 3838 "Cannot verify the device encompasses the full PHYSICAL disk.\n" 3839 3840 #define FDISK_LECTURE_NO_GEOM \ 3841 "Unable to get geometry from device.\n" \ 3842 "Cannot verify the device encompasses the full PHYSICAL disk.\n" 3843 3844 #define FDISK_SHALL_I_CONTINUE \ 3845 "Are you sure you want to continue? (y/n) " 3846 3847 /* 3848 * lecture_and_query 3849 * Called when a sanity check fails. This routine gives a warning 3850 * specific to the check that fails, followed by a generic lecture 3851 * about the "right" device to supply as input. Then, if appropriate, 3852 * it will prompt the user on whether or not they want to continue. 3853 * Inappropriate times for prompting are when the user has selected 3854 * non-interactive mode or read-only mode. 3855 */ 3856 static int 3857 lecture_and_query(char *warning, char *devname) 3858 { 3859 if (io_nifdisk) 3860 return (0); 3861 3862 (void) fprintf(stderr, "WARNING: Device %s: \n", devname); 3863 (void) fprintf(stderr, "%s", warning); 3864 (void) fprintf(stderr, FDISK_STANDARD_LECTURE); 3865 (void) fprintf(stderr, FDISK_SHALL_I_CONTINUE); 3866 3867 return (yesno()); 3868 } 3869 3870 static void 3871 sanity_check_provided_device(char *devname, int fd) 3872 { 3873 struct extvtoc v; 3874 struct dk_geom d; 3875 struct part_info pi; 3876 struct extpart_info extpi; 3877 diskaddr_t totsize; 3878 int idx = -1; 3879 3880 /* 3881 * First try the PARTINFO ioctl. If it works, we will be able 3882 * to tell if they've specified the full disk partition by checking 3883 * to see if they've specified a partition that starts at sector 0. 3884 */ 3885 if (ioctl(fd, DKIOCEXTPARTINFO, &extpi) != -1) { 3886 if (extpi.p_start != 0) { 3887 if (!lecture_and_query(FDISK_LECTURE_NOT_SECTOR_ZERO, 3888 devname)) { 3889 (void) close(fd); 3890 exit(1); 3891 } 3892 } 3893 } else if (ioctl(fd, DKIOCPARTINFO, &pi) != -1) { 3894 if (pi.p_start != 0) { 3895 if (!lecture_and_query(FDISK_LECTURE_NOT_SECTOR_ZERO, 3896 devname)) { 3897 (void) close(fd); 3898 exit(1); 3899 } 3900 } 3901 } else { 3902 if ((idx = read_extvtoc(fd, &v)) < 0) { 3903 if (!lecture_and_query(FDISK_LECTURE_NO_VTOC, 3904 devname)) { 3905 (void) close(fd); 3906 exit(1); 3907 } 3908 return; 3909 } 3910 if (ioctl(fd, DKIOCGGEOM, &d) == -1) { 3911 perror(devname); 3912 if (!lecture_and_query(FDISK_LECTURE_NO_GEOM, 3913 devname)) { 3914 (void) close(fd); 3915 exit(1); 3916 } 3917 return; 3918 } 3919 totsize = (diskaddr_t)d.dkg_ncyl * d.dkg_nhead * d.dkg_nsect; 3920 if (v.v_part[idx].p_size != totsize) { 3921 if (!lecture_and_query(FDISK_LECTURE_NOT_FULL, 3922 devname)) { 3923 (void) close(fd); 3924 exit(1); 3925 } 3926 } 3927 } 3928 } 3929 3930 3931 /* 3932 * get_node 3933 * Called from main to construct the name of the device node to open. 3934 * Initially tries to stat the node exactly as provided, if that fails 3935 * we prepend the default path (/dev/rdsk/). 3936 */ 3937 static char * 3938 get_node(char *devname) 3939 { 3940 char *node; 3941 struct stat statbuf; 3942 size_t space; 3943 3944 /* Don't do anything if we are skipping device checks */ 3945 if (io_image) 3946 return (devname); 3947 3948 node = devname; 3949 3950 /* Try the node as provided first */ 3951 if (stat(node, (struct stat *)&statbuf) == -1) { 3952 /* 3953 * Copy the passed in string to a new buffer, prepend the 3954 * default path and try again. 3955 */ 3956 space = strlen(DEFAULT_PATH) + strlen(devname) + 1; 3957 3958 if ((node = malloc(space)) == NULL) { 3959 (void) fprintf(stderr, "fdisk: Unable to obtain memory " 3960 "for device node.\n"); 3961 exit(1); 3962 } 3963 3964 /* Copy over the default path and the provided node */ 3965 (void) strncpy(node, DEFAULT_PATH, strlen(DEFAULT_PATH)); 3966 space -= strlen(DEFAULT_PATH); 3967 (void) strlcpy(node + strlen(DEFAULT_PATH), devname, space); 3968 3969 /* Try to stat it again */ 3970 if (stat(node, (struct stat *)&statbuf) == -1) { 3971 /* Failed all options, give up */ 3972 (void) fprintf(stderr, 3973 "fdisk: Cannot stat device %s.\n", 3974 devname); 3975 exit(1); 3976 } 3977 } 3978 3979 /* Make sure the device specified is the raw device */ 3980 if ((statbuf.st_mode & S_IFMT) != S_IFCHR) { 3981 (void) fprintf(stderr, 3982 "fdisk: %s must be a raw device.\n", node); 3983 exit(1); 3984 } 3985 3986 return (node); 3987 } 3988