Commit | Line | Data |
---|---|---|
0ffe40b3 | 1 | /* |
35a9ab8a | 2 | * Copyright (c) 2007,2020 The DragonFly Project. All rights reserved. |
0a319615 | 3 | * |
0ffe40b3 MD |
4 | * This code is derived from software contributed to The DragonFly Project |
5 | * by Matthew Dillon <dillon@backplane.com> | |
0a319615 | 6 | * |
0ffe40b3 MD |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
0a319615 | 10 | * |
0ffe40b3 MD |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * 3. Neither the name of The DragonFly Project nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific, prior written permission. | |
0a319615 | 20 | * |
0ffe40b3 MD |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
22 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
24 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
25 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
26 | * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
27 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
28 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
29 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
31 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
32 | * SUCH DAMAGE. | |
0ffe40b3 MD |
33 | */ |
34 | /* | |
35 | * Copyright (c) 1987, 1993 | |
36 | * The Regents of the University of California. All rights reserved. | |
37 | * | |
38 | * This code is derived from software contributed to Berkeley by | |
39 | * Symmetric Computer Systems. | |
40 | * | |
41 | * Redistribution and use in source and binary forms, with or without | |
42 | * modification, are permitted provided that the following conditions | |
43 | * are met: | |
44 | * 1. Redistributions of source code must retain the above copyright | |
45 | * notice, this list of conditions and the following disclaimer. | |
46 | * 2. Redistributions in binary form must reproduce the above copyright | |
47 | * notice, this list of conditions and the following disclaimer in the | |
48 | * documentation and/or other materials provided with the distribution. | |
dc71b7ab | 49 | * 3. Neither the name of the University nor the names of its contributors |
0ffe40b3 MD |
50 | * may be used to endorse or promote products derived from this software |
51 | * without specific prior written permission. | |
52 | * | |
53 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
54 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
55 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
56 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
57 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
58 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
59 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
60 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
61 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
62 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
63 | * SUCH DAMAGE. | |
64 | * | |
65 | * @(#)disklabel.c 1.2 (Symmetric) 11/28/85 | |
66 | * @(#)disklabel.c 8.2 (Berkeley) 1/7/94 | |
67 | * $FreeBSD: src/sbin/disklabel/disklabel.c,v 1.28.2.15 2003/01/24 16:18:16 des Exp $ | |
0ffe40b3 MD |
68 | */ |
69 | ||
70 | #include <sys/param.h> | |
0ffe40b3 MD |
71 | #include <sys/stat.h> |
72 | #include <sys/wait.h> | |
73 | #define DKTYPENAMES | |
74 | #include <sys/disklabel64.h> | |
75 | #include <sys/diskslice.h> | |
76 | #include <sys/diskmbr.h> | |
77 | #include <sys/dtype.h> | |
78 | #include <sys/sysctl.h> | |
79 | #include <disktab.h> | |
2c3b1d1b | 80 | #include <fcntl.h> |
d736a600 | 81 | #include <fstab.h> |
0ffe40b3 MD |
82 | |
83 | #include <vfs/ufs/dinode.h> | |
84 | #include <vfs/ufs/fs.h> | |
85 | ||
86 | #include <unistd.h> | |
87 | #include <string.h> | |
88 | #include <stdio.h> | |
89 | #include <stdlib.h> | |
90 | #include <signal.h> | |
91 | #include <stdarg.h> | |
92 | #include <stddef.h> | |
93 | #include <ctype.h> | |
94 | #include <err.h> | |
95 | #include <errno.h> | |
0ffe40b3 MD |
96 | #include <uuid.h> |
97 | #include "pathnames.h" | |
98 | ||
99 | extern uint32_t crc32(const void *buf, size_t size); | |
100 | ||
0a319615 MD |
101 | static void makelabel(const char *, const char *, struct disklabel64 *); |
102 | static int writelabel(int, struct disklabel64 *); | |
35a9ab8a | 103 | static int expandlabel(int f, struct disklabel64 *lp, int *wbackp); |
0a319615 MD |
104 | static void l_perror(const char *); |
105 | static void display(FILE *, const struct disklabel64 *); | |
106 | static int edit(struct disklabel64 *, int); | |
107 | static int editit(void); | |
108 | static char *skip(char *); | |
109 | static char *word(char *); | |
110 | static int parse_field_val(char **, char **, u_int64_t *, int); | |
111 | static int getasciilabel(FILE *, struct disklabel64 *); | |
112 | static int getasciipartspec(char *, struct disklabel64 *, int, int, uint32_t); | |
113 | static int getasciipartuuid(char *, struct disklabel64 *, int, int, uint32_t); | |
114 | static int checklabel(struct disklabel64 *); | |
115 | static void Warning(const char *, ...) __printflike(1, 2); | |
116 | static void usage(void); | |
117 | static struct disklabel64 *getvirginlabel(void); | |
118 | static struct disklabel64 *readlabel(int); | |
119 | static struct disklabel64 *makebootarea(int); | |
0ffe40b3 MD |
120 | |
121 | #define DEFEDITOR _PATH_VI | |
122 | #define streq(a,b) (strcmp(a,b) == 0) | |
123 | ||
0a319615 MD |
124 | static char *dkname; |
125 | static char *specname; | |
126 | static char tmpfil[] = PATH_TMPFILE; | |
0ffe40b3 | 127 | |
0a319615 | 128 | static struct disklabel64 lab; |
0ffe40b3 MD |
129 | |
130 | #define MAX_PART ('z') | |
131 | #define MAX_NUM_PARTS (1 + MAX_PART - 'a') | |
0a319615 MD |
132 | static char part_size_type[MAX_NUM_PARTS]; |
133 | static char part_offset_type[MAX_NUM_PARTS]; | |
134 | static int part_set[MAX_NUM_PARTS]; | |
135 | ||
35a9ab8a MD |
136 | static int installboot; |
137 | static int expandopt; | |
0a319615 MD |
138 | static int boot1size; |
139 | static int boot1lsize; | |
140 | static int boot2size; | |
141 | static char *boot1buf; | |
142 | static char *boot2buf; | |
143 | static char *boot1path; | |
144 | static char *boot2path; | |
145 | ||
146 | static enum { | |
35a9ab8a MD |
147 | UNSPEC, EDIT, NOWRITE, READ, RESTORE, WRITE, WRITEABLE, WRITEBOOT, |
148 | EXPAND | |
0ffe40b3 MD |
149 | } op = UNSPEC; |
150 | ||
0a319615 MD |
151 | static int rflag; |
152 | static int Vflag; | |
153 | static int disable_write; /* set to disable writing to disk label */ | |
0ffe40b3 MD |
154 | |
155 | #ifdef DEBUG | |
0a319615 | 156 | static int debug; |
35a9ab8a | 157 | #define OPTIONS "BNRWb:denrs:Vwx" |
0ffe40b3 | 158 | #else |
35a9ab8a | 159 | #define OPTIONS "BNRWb:enrs:Vwx" |
0ffe40b3 MD |
160 | #endif |
161 | ||
162 | int | |
163 | main(int argc, char *argv[]) | |
164 | { | |
165 | struct disklabel64 *lp; | |
166 | FILE *t; | |
167 | int ch, f = 0, flag, error = 0; | |
0a319615 MD |
168 | const char *name = NULL; |
169 | const char *dtype = NULL; | |
0ffe40b3 MD |
170 | |
171 | while ((ch = getopt(argc, argv, OPTIONS)) != -1) | |
172 | switch (ch) { | |
173 | case 'B': | |
174 | ++installboot; | |
175 | break; | |
176 | case 'b': | |
177 | boot1path = optarg; | |
178 | break; | |
179 | ||
180 | case 's': | |
181 | boot2path = optarg; | |
182 | break; | |
183 | case 'N': | |
184 | if (op != UNSPEC) | |
185 | usage(); | |
186 | op = NOWRITE; | |
187 | break; | |
188 | case 'n': | |
189 | disable_write = 1; | |
190 | break; | |
191 | case 'R': | |
192 | if (op != UNSPEC) | |
193 | usage(); | |
194 | op = RESTORE; | |
195 | break; | |
196 | case 'W': | |
197 | if (op != UNSPEC) | |
198 | usage(); | |
199 | op = WRITEABLE; | |
200 | break; | |
201 | case 'e': | |
202 | if (op != UNSPEC) | |
203 | usage(); | |
204 | op = EDIT; | |
205 | break; | |
206 | case 'V': | |
207 | ++Vflag; | |
208 | break; | |
209 | case 'r': | |
210 | ++rflag; | |
211 | break; | |
212 | case 'w': | |
213 | if (op != UNSPEC) | |
214 | usage(); | |
215 | op = WRITE; | |
216 | break; | |
35a9ab8a MD |
217 | case 'x': |
218 | expandopt++; | |
219 | op = EXPAND; | |
220 | break; | |
0ffe40b3 MD |
221 | #ifdef DEBUG |
222 | case 'd': | |
223 | debug++; | |
224 | break; | |
225 | #endif | |
226 | case '?': | |
227 | default: | |
228 | usage(); | |
229 | } | |
230 | argc -= optind; | |
231 | argv += optind; | |
232 | if (installboot) { | |
233 | rflag++; | |
234 | if (op == UNSPEC) | |
235 | op = WRITEBOOT; | |
236 | } else { | |
237 | if (op == UNSPEC) | |
238 | op = READ; | |
239 | boot1path = NULL; | |
240 | boot2path = NULL; | |
241 | } | |
242 | if (argc < 1) | |
243 | usage(); | |
244 | ||
d736a600 MD |
245 | dkname = getdevpath(argv[0], 0); |
246 | specname = dkname; | |
0ffe40b3 | 247 | f = open(specname, op == READ ? O_RDONLY : O_RDWR); |
0ffe40b3 MD |
248 | if (f < 0) |
249 | err(4, "%s", specname); | |
250 | ||
251 | switch(op) { | |
252 | ||
253 | case UNSPEC: | |
254 | break; | |
255 | ||
256 | case EDIT: | |
257 | if (argc != 1) | |
258 | usage(); | |
259 | lp = readlabel(f); | |
260 | error = edit(lp, f); | |
261 | break; | |
262 | ||
263 | case NOWRITE: | |
264 | flag = 0; | |
265 | if (ioctl(f, DIOCWLABEL, (char *)&flag) < 0) | |
266 | err(4, "ioctl DIOCWLABEL"); | |
267 | break; | |
268 | ||
269 | case READ: | |
270 | if (argc != 1) | |
271 | usage(); | |
272 | lp = readlabel(f); | |
273 | display(stdout, lp); | |
274 | error = checklabel(lp); | |
275 | break; | |
276 | ||
35a9ab8a MD |
277 | case EXPAND: |
278 | { | |
279 | int wback = 0; | |
280 | ||
281 | lp = readlabel(f); | |
282 | error = expandlabel(f, lp, &wback); | |
283 | if (checklabel(lp) == 0 && wback) | |
284 | error = writelabel(f, lp); | |
285 | } | |
286 | break; | |
287 | ||
0ffe40b3 MD |
288 | case RESTORE: |
289 | if (installboot && argc == 3) { | |
290 | makelabel(argv[2], 0, &lab); | |
291 | argc--; | |
292 | ||
293 | /* | |
294 | * We only called makelabel() for its side effect | |
295 | * of setting the bootstrap file names. Discard | |
296 | * all changes to `lab' so that all values in the | |
297 | * final label come from the ASCII label. | |
298 | */ | |
299 | bzero((char *)&lab, sizeof(lab)); | |
300 | } | |
301 | if (argc != 2) | |
302 | usage(); | |
303 | if (!(t = fopen(argv[1], "r"))) | |
304 | err(4, "%s", argv[1]); | |
305 | if (!getasciilabel(t, &lab)) | |
306 | exit(1); | |
307 | lp = makebootarea(f); | |
308 | bcopy(&lab.d_magic, &lp->d_magic, | |
309 | sizeof(lab) - offsetof(struct disklabel64, d_magic)); | |
310 | error = writelabel(f, lp); | |
311 | break; | |
312 | ||
313 | case WRITE: | |
314 | if (argc == 3) { | |
315 | name = argv[2]; | |
316 | argc--; | |
317 | } | |
0a319615 MD |
318 | if (argc == 2) |
319 | dtype = argv[1]; | |
320 | else if (argc == 1) | |
321 | dtype = "auto"; | |
322 | else | |
0ffe40b3 | 323 | usage(); |
0a319615 | 324 | makelabel(dtype, name, &lab); |
0ffe40b3 MD |
325 | lp = makebootarea(f); |
326 | bcopy(&lab.d_magic, &lp->d_magic, | |
327 | sizeof(lab) - offsetof(struct disklabel64, d_magic)); | |
328 | if (checklabel(lp) == 0) | |
329 | error = writelabel(f, lp); | |
330 | break; | |
331 | ||
332 | case WRITEABLE: | |
333 | flag = 1; | |
334 | if (ioctl(f, DIOCWLABEL, (char *)&flag) < 0) | |
335 | err(4, "ioctl DIOCWLABEL"); | |
336 | break; | |
337 | ||
338 | case WRITEBOOT: | |
339 | { | |
340 | struct disklabel64 tlab; | |
341 | ||
342 | lp = readlabel(f); | |
343 | tlab = *lp; | |
344 | if (argc == 2) | |
345 | makelabel(argv[1], 0, &lab); | |
346 | lp = makebootarea(f); | |
347 | bcopy(&tlab.d_magic, &lp->d_magic, | |
348 | sizeof(tlab) - offsetof(struct disklabel64, d_magic)); | |
349 | if (checklabel(lp) == 0) | |
350 | error = writelabel(f, lp); | |
351 | break; | |
352 | } | |
353 | } | |
354 | exit(error); | |
355 | } | |
356 | ||
357 | /* | |
358 | * Construct a prototype disklabel from /etc/disktab. As a side | |
359 | * effect, set the names of the primary and secondary boot files | |
360 | * if specified. | |
361 | */ | |
0a319615 | 362 | static void |
0ffe40b3 MD |
363 | makelabel(const char *type, const char *name, struct disklabel64 *lp) |
364 | { | |
365 | struct disklabel64 *dp; | |
366 | ||
87b121bb | 367 | if (streq(type, "auto")) |
0ffe40b3 MD |
368 | dp = getvirginlabel(); |
369 | else | |
0a319615 | 370 | errx(1, "no disktab(5) support yet; only 'auto' allowed"); |
0ffe40b3 MD |
371 | *lp = *dp; |
372 | ||
0ffe40b3 | 373 | if (name) |
0a319615 | 374 | strlcpy((char *)lp->d_packname, name, sizeof(lp->d_packname)); |
0ffe40b3 MD |
375 | } |
376 | ||
0a319615 | 377 | static int |
0ffe40b3 MD |
378 | writelabel(int f, struct disklabel64 *lp) |
379 | { | |
380 | struct disklabel64 *blp; | |
381 | int flag; | |
382 | int r; | |
383 | size_t lpsize; | |
384 | size_t lpcrcsize; | |
385 | ||
386 | lpsize = offsetof(struct disklabel64, d_partitions[lp->d_npartitions]); | |
387 | lpcrcsize = lpsize - offsetof(struct disklabel64, d_magic); | |
388 | ||
389 | if (disable_write) { | |
0ca0cd25 | 390 | Warning("write to disk label suppressed - label was as follows:"); |
0ffe40b3 MD |
391 | display(stdout, lp); |
392 | return (0); | |
393 | } else { | |
394 | lp->d_magic = DISKMAGIC64; | |
395 | lp->d_crc = 0; | |
396 | lp->d_crc = crc32(&lp->d_magic, lpcrcsize); | |
397 | if (rflag) { | |
398 | /* | |
399 | * Make sure the boot area is not too large | |
400 | */ | |
401 | if (boot2buf) { | |
402 | int lpbsize = (int)(lp->d_pbase - lp->d_bbase); | |
403 | if (lp->d_pbase == 0) { | |
404 | errx(1, "no space was set aside in " | |
405 | "the disklabel for boot2!"); | |
406 | } | |
407 | if (boot2size > lpbsize) { | |
408 | errx(1, "label did not reserve enough " | |
409 | "space for boot! %d/%d", | |
410 | boot2size, lpbsize); | |
411 | } | |
412 | } | |
413 | ||
414 | /* | |
415 | * First set the kernel disk label, | |
416 | * then write a label to the raw disk. | |
417 | * If the SDINFO ioctl fails because it is | |
418 | * unimplemented, keep going; otherwise, the kernel | |
419 | * consistency checks may prevent us from changing | |
420 | * the current (in-core) label. | |
421 | */ | |
422 | if (ioctl(f, DIOCSDINFO64, lp) < 0 && | |
423 | errno != ENODEV && errno != ENOTTY) { | |
424 | l_perror("ioctl DIOCSDINFO"); | |
425 | return (1); | |
426 | } | |
427 | lseek(f, (off_t)0, SEEK_SET); | |
428 | ||
429 | /* | |
430 | * The disklabel embeds areas which we may not | |
431 | * have wanted to change. Merge those areas in | |
432 | * from disk. | |
433 | */ | |
434 | blp = makebootarea(f); | |
435 | if (blp != lp) { | |
436 | bcopy(&lp->d_magic, &blp->d_magic, | |
437 | sizeof(*lp) - | |
438 | offsetof(struct disklabel64, d_magic)); | |
439 | } | |
0a319615 | 440 | |
0ffe40b3 MD |
441 | /* |
442 | * write enable label sector before write | |
443 | * (if necessary), disable after writing. | |
444 | */ | |
445 | flag = 1; | |
446 | if (ioctl(f, DIOCWLABEL, &flag) < 0) | |
447 | warn("ioctl DIOCWLABEL"); | |
448 | ||
449 | r = write(f, boot1buf, boot1lsize); | |
450 | if (r != (ssize_t)boot1lsize) { | |
451 | warn("write"); | |
452 | return (1); | |
453 | } | |
454 | /* | |
455 | * Output the remainder of the disklabel | |
456 | */ | |
457 | if (boot2buf) { | |
458 | lseek(f, lp->d_bbase, 0); | |
459 | r = write(f, boot2buf, boot2size); | |
460 | if (r != boot2size) { | |
461 | warn("write"); | |
462 | return(1); | |
463 | } | |
464 | } | |
465 | flag = 0; | |
466 | ioctl(f, DIOCWLABEL, &flag); | |
467 | } else if (ioctl(f, DIOCWDINFO64, lp) < 0) { | |
468 | l_perror("ioctl DIOCWDINFO64"); | |
469 | return (1); | |
470 | } | |
471 | } | |
472 | return (0); | |
473 | } | |
474 | ||
0a319615 | 475 | static void |
0ffe40b3 MD |
476 | l_perror(const char *s) |
477 | { | |
478 | switch (errno) { | |
479 | ||
480 | case ESRCH: | |
481 | warnx("%s: no disk label on disk;", s); | |
482 | fprintf(stderr, "add \"-r\" to install initial label\n"); | |
483 | break; | |
484 | ||
485 | case EINVAL: | |
486 | warnx("%s: label magic number or checksum is wrong!", s); | |
487 | fprintf(stderr, "(disklabel or kernel is out of date?)\n"); | |
488 | break; | |
489 | ||
490 | case EBUSY: | |
491 | warnx("%s: open partition would move or shrink", s); | |
492 | break; | |
493 | ||
494 | case ENOATTR: | |
495 | warnx("%s: the disk already has a label of a different type,\n" | |
496 | "probably a 32 bit disklabel. It must be cleaned out " | |
497 | "first.\n", s); | |
498 | break; | |
499 | ||
500 | default: | |
2038fb68 | 501 | warn(NULL); |
0ffe40b3 MD |
502 | break; |
503 | } | |
504 | } | |
505 | ||
506 | /* | |
507 | * Fetch disklabel for disk. | |
508 | * Use ioctl to get label unless -r flag is given. | |
509 | */ | |
0a319615 | 510 | static struct disklabel64 * |
0ffe40b3 MD |
511 | readlabel(int f) |
512 | { | |
513 | struct disklabel64 *lp; | |
514 | u_int32_t savecrc; | |
515 | size_t lpcrcsize; | |
516 | ||
517 | if (rflag) { | |
518 | /* | |
519 | * Allocate space for the label. The boot1 code, if any, | |
520 | * is embedded in the label. The label overlaps the boot1 | |
521 | * code. | |
522 | */ | |
523 | lp = makebootarea(f); | |
524 | lpcrcsize = offsetof(struct disklabel64, | |
525 | d_partitions[lp->d_npartitions]) - | |
526 | offsetof(struct disklabel64, d_magic); | |
527 | savecrc = lp->d_crc; | |
528 | lp->d_crc = 0; | |
529 | if (lp->d_magic != DISKMAGIC64) | |
530 | errx(1, "bad pack magic number"); | |
531 | if (lp->d_npartitions > MAXPARTITIONS64 || | |
532 | savecrc != crc32(&lp->d_magic, lpcrcsize) | |
533 | ) { | |
534 | errx(1, "corrupted disklabel64"); | |
535 | } | |
536 | lp->d_crc = savecrc; | |
537 | } else { | |
538 | /* | |
539 | * Just use a static structure to hold the label. Note | |
540 | * that DIOCSDINFO64 does not overwrite the boot1 area | |
541 | * even though it is part of the disklabel64 structure. | |
542 | */ | |
543 | lp = &lab; | |
544 | if (Vflag) { | |
545 | if (ioctl(f, DIOCGDVIRGIN64, lp) < 0) { | |
546 | l_perror("ioctl DIOCGDVIRGIN64"); | |
547 | exit(4); | |
548 | } | |
549 | } else { | |
550 | if (ioctl(f, DIOCGDINFO64, lp) < 0) { | |
551 | l_perror("ioctl DIOCGDINFO64"); | |
552 | exit(4); | |
553 | } | |
554 | } | |
555 | } | |
556 | return (lp); | |
557 | } | |
558 | ||
559 | /* | |
560 | * Construct a boot area for boot1 and boot2 and return the location of | |
561 | * the label within the area. The caller will overwrite the label so | |
562 | * we don't actually have to read it. | |
563 | */ | |
0a319615 | 564 | static struct disklabel64 * |
0ffe40b3 MD |
565 | makebootarea(int f) |
566 | { | |
567 | struct disklabel64 *lp; | |
568 | struct partinfo info; | |
569 | u_int32_t secsize; | |
570 | struct stat st; | |
571 | int fd; | |
572 | int r; | |
573 | ||
574 | if (ioctl(f, DIOCGPART, &info) == 0) | |
575 | secsize = info.media_blksize; | |
576 | else | |
577 | secsize = 512; | |
578 | ||
579 | if (boot1buf == NULL) { | |
580 | size_t rsize; | |
581 | ||
965b839f | 582 | rsize = roundup2(sizeof(struct disklabel64), secsize); |
0ffe40b3 MD |
583 | boot1size = offsetof(struct disklabel64, d_magic); |
584 | boot1lsize = rsize; | |
585 | boot1buf = malloc(rsize); | |
586 | bzero(boot1buf, rsize); | |
587 | r = read(f, boot1buf, rsize); | |
0a319615 MD |
588 | if (r != (int)rsize) { |
589 | free(boot1buf); | |
0ffe40b3 | 590 | err(4, "%s", specname); |
0a319615 | 591 | } |
0ffe40b3 MD |
592 | } |
593 | lp = (void *)boot1buf; | |
594 | ||
595 | if (installboot == 0) | |
596 | return(lp); | |
597 | ||
598 | if (boot2buf == NULL) { | |
0a319615 | 599 | boot2size = BOOT2SIZE64; |
0ffe40b3 MD |
600 | boot2buf = malloc(boot2size); |
601 | bzero(boot2buf, boot2size); | |
602 | } | |
603 | ||
604 | /* | |
605 | * If installing the boot code, read it into the appropriate portions | |
606 | * of the buffer(s) | |
607 | */ | |
608 | if (boot1path == NULL) | |
609 | asprintf(&boot1path, "%s/boot1_64", _PATH_BOOTDIR); | |
610 | if (boot2path == NULL) | |
611 | asprintf(&boot2path, "%s/boot2_64", _PATH_BOOTDIR); | |
612 | ||
613 | if ((fd = open(boot1path, O_RDONLY)) < 0) | |
614 | err(4, "%s", boot1path); | |
615 | if (fstat(fd, &st) < 0) | |
616 | err(4, "%s", boot1path); | |
617 | if (st.st_size > boot1size) | |
618 | err(4, "%s must be exactly %d bytes!", boot1path, boot1size); | |
619 | if (read(fd, boot1buf, boot1size) != boot1size) | |
620 | err(4, "%s must be exactly %d bytes!", boot1path, boot1size); | |
621 | close(fd); | |
622 | ||
623 | if ((fd = open(boot2path, O_RDONLY)) < 0) | |
624 | err(4, "%s", boot2path); | |
625 | if (fstat(fd, &st) < 0) | |
626 | err(4, "%s", boot2path); | |
627 | if (st.st_size > boot2size) | |
628 | err(4, "%s must be <= %d bytes!", boot2path, boot2size); | |
629 | if ((r = read(fd, boot2buf, boot2size)) < 1) | |
630 | err(4, "%s is empty!", boot2path); | |
965b839f | 631 | boot2size = roundup2(r, secsize); |
0ffe40b3 MD |
632 | close(fd); |
633 | ||
634 | /* | |
635 | * XXX dangerously dedicated support goes here XXX | |
636 | */ | |
637 | return (lp); | |
638 | } | |
639 | ||
0a319615 | 640 | static void |
0ffe40b3 MD |
641 | display(FILE *f, const struct disklabel64 *lp) |
642 | { | |
643 | const struct partition64 *pp; | |
644 | char *str; | |
645 | unsigned int part; | |
646 | int didany; | |
647 | uint32_t blksize; | |
648 | ||
649 | /* | |
650 | * Use a human readable block size if possible. This is for | |
651 | * display and editing purposes only. | |
652 | */ | |
653 | if (lp->d_align > 1024) | |
654 | blksize = 1024; | |
655 | else | |
656 | blksize = lp->d_align; | |
657 | ||
658 | fprintf(f, "# %s:\n", specname); | |
659 | fprintf(f, "#\n"); | |
0a319615 | 660 | fprintf(f, "# Calculated informational fields for the slice:\n"); |
0ffe40b3 | 661 | fprintf(f, "#\n"); |
a276dc6b | 662 | fprintf(f, "# boot space: %10ju bytes\n", |
1f5e0b99 | 663 | (uintmax_t)(lp->d_pbase - lp->d_bbase)); |
a276dc6b | 664 | fprintf(f, "# data space: %10ju blocks\t# %6.2f MB (%ju bytes)\n", |
1f5e0b99 | 665 | (uintmax_t)(lp->d_pstop - lp->d_pbase) / blksize, |
0ffe40b3 | 666 | (double)(lp->d_pstop - lp->d_pbase) / 1024.0 / 1024.0, |
1f5e0b99 | 667 | (uintmax_t)(lp->d_pstop - lp->d_pbase)); |
0ffe40b3 | 668 | fprintf(f, "#\n"); |
0a319615 MD |
669 | fprintf(f, "# NOTE: The partition data base and stop are physically\n"); |
670 | fprintf(f, "# aligned instead of slice-relative aligned.\n"); | |
671 | fprintf(f, "#\n"); | |
672 | fprintf(f, "# All byte equivalent offsets must be aligned.\n"); | |
5179f0c5 | 673 | fprintf(f, "#\n"); |
0ffe40b3 | 674 | |
529d55c9 | 675 | uuid_to_string(&lp->d_stor_uuid, &str, NULL); |
0ffe40b3 MD |
676 | fprintf(f, "diskid: %s\n", str ? str : "<unknown>"); |
677 | free(str); | |
678 | ||
0a319615 | 679 | fprintf(f, "label: %s\n", lp->d_packname); |
1f5e0b99 SW |
680 | fprintf(f, "boot2 data base: 0x%012jx\n", (uintmax_t)lp->d_bbase); |
681 | fprintf(f, "partitions data base: 0x%012jx\n", (uintmax_t)lp->d_pbase); | |
682 | fprintf(f, "partitions data stop: 0x%012jx\n", (uintmax_t)lp->d_pstop); | |
683 | fprintf(f, "backup label: 0x%012jx\n", (uintmax_t)lp->d_abase); | |
a276dc6b | 684 | fprintf(f, "total size: 0x%012jx\t# %6.2f MB\n", |
1f5e0b99 | 685 | (uintmax_t)lp->d_total_size, |
0ffe40b3 MD |
686 | (double)lp->d_total_size / 1024.0 / 1024.0); |
687 | fprintf(f, "alignment: %u\n", lp->d_align); | |
0a319615 | 688 | fprintf(f, "display block size: %u\t# for partition display and edit only\n", |
0ffe40b3 MD |
689 | blksize); |
690 | ||
691 | fprintf(f, "\n"); | |
692 | fprintf(f, "%u partitions:\n", lp->d_npartitions); | |
693 | fprintf(f, "# size offset fstype fsuuid\n"); | |
0ffe40b3 | 694 | didany = 0; |
529d55c9 MD |
695 | for (part = 0; part < lp->d_npartitions; part++) { |
696 | pp = &lp->d_partitions[part]; | |
0ffe40b3 | 697 | const u_long onemeg = 1024 * 1024; |
529d55c9 | 698 | |
0ffe40b3 MD |
699 | if (pp->p_bsize == 0) |
700 | continue; | |
701 | didany = 1; | |
702 | fprintf(f, " %c: ", 'a' + part); | |
703 | ||
704 | if (pp->p_bsize % lp->d_align) | |
705 | fprintf(f, "%10s ", "ILLEGAL"); | |
706 | else | |
1f5e0b99 | 707 | fprintf(f, "%10ju ", (uintmax_t)pp->p_bsize / blksize); |
5179f0c5 MD |
708 | |
709 | if ((pp->p_boffset - lp->d_pbase) % lp->d_align) | |
0ffe40b3 MD |
710 | fprintf(f, "%10s ", "ILLEGAL"); |
711 | else | |
a276dc6b | 712 | fprintf(f, "%10ju ", |
1f5e0b99 | 713 | (uintmax_t)(pp->p_boffset - lp->d_pbase) / blksize); |
5179f0c5 | 714 | |
0ffe40b3 MD |
715 | if (pp->p_fstype < FSMAXTYPES) |
716 | fprintf(f, "%8.8s", fstypenames[pp->p_fstype]); | |
717 | else | |
718 | fprintf(f, "%8d", pp->p_fstype); | |
80818344 | 719 | fprintf(f, "\t# %11.3fMB", (double)pp->p_bsize / onemeg); |
0ffe40b3 MD |
720 | fprintf(f, "\n"); |
721 | } | |
529d55c9 MD |
722 | for (part = 0; part < lp->d_npartitions; part++) { |
723 | pp = &lp->d_partitions[part]; | |
724 | ||
725 | if (pp->p_bsize == 0) | |
726 | continue; | |
727 | ||
728 | if (uuid_is_nil(&lp->d_stor_uuid, NULL) == 0) { | |
729 | fprintf(f, " %c-stor_uuid: ", 'a' + part); | |
730 | str = NULL; | |
731 | uuid_to_string(&pp->p_stor_uuid, &str, NULL); | |
732 | if (str) { | |
733 | fprintf(f, "%s", str); | |
734 | free(str); | |
735 | } | |
736 | fprintf(f, "\n"); | |
737 | } | |
738 | } | |
0ffe40b3 MD |
739 | if (didany == 0) { |
740 | fprintf(f, "# EXAMPLE\n"); | |
741 | fprintf(f, "#a: 4g 0 4.2BSD\n"); | |
529d55c9 | 742 | fprintf(f, "#a: * * 4.2BSD\n"); |
0ffe40b3 MD |
743 | |
744 | } | |
745 | fflush(f); | |
746 | } | |
747 | ||
0a319615 | 748 | static int |
0ffe40b3 MD |
749 | edit(struct disklabel64 *lp, int f) |
750 | { | |
751 | int c, fd; | |
752 | struct disklabel64 label; | |
753 | FILE *fp; | |
754 | ||
755 | if ((fd = mkstemp(tmpfil)) == -1 || | |
756 | (fp = fdopen(fd, "w")) == NULL) { | |
757 | warnx("can't create %s", tmpfil); | |
758 | return (1); | |
759 | } | |
760 | display(fp, lp); | |
761 | fclose(fp); | |
762 | for (;;) { | |
763 | if (!editit()) | |
764 | break; | |
765 | fp = fopen(tmpfil, "r"); | |
766 | if (fp == NULL) { | |
767 | warnx("can't reopen %s for reading", tmpfil); | |
768 | break; | |
769 | } | |
770 | bzero((char *)&label, sizeof(label)); | |
771 | if (getasciilabel(fp, &label)) { | |
772 | *lp = label; | |
773 | if (writelabel(f, lp) == 0) { | |
774 | fclose(fp); | |
775 | unlink(tmpfil); | |
776 | return (0); | |
777 | } | |
778 | } | |
779 | fclose(fp); | |
780 | printf("re-edit the label? [y]: "); fflush(stdout); | |
781 | c = getchar(); | |
782 | if (c != EOF && c != (int)'\n') | |
783 | while (getchar() != (int)'\n') | |
784 | ; | |
785 | if (c == (int)'n') | |
786 | break; | |
787 | } | |
788 | unlink(tmpfil); | |
789 | return (1); | |
790 | } | |
791 | ||
0a319615 | 792 | static int |
0ffe40b3 MD |
793 | editit(void) |
794 | { | |
795 | int pid, xpid; | |
796 | int status, omask; | |
797 | const char *ed; | |
798 | ||
799 | omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); | |
800 | while ((pid = fork()) < 0) { | |
801 | if (errno == EPROCLIM) { | |
802 | warnx("you have too many processes"); | |
803 | return(0); | |
804 | } | |
805 | if (errno != EAGAIN) { | |
806 | warn("fork"); | |
807 | return(0); | |
808 | } | |
809 | sleep(1); | |
810 | } | |
811 | if (pid == 0) { | |
812 | sigsetmask(omask); | |
813 | setgid(getgid()); | |
814 | setuid(getuid()); | |
60233e58 | 815 | if ((ed = getenv("EDITOR")) == NULL) |
0ffe40b3 | 816 | ed = DEFEDITOR; |
60233e58 | 817 | execlp(ed, ed, tmpfil, NULL); |
0ffe40b3 MD |
818 | err(1, "%s", ed); |
819 | } | |
820 | while ((xpid = wait(&status)) >= 0) | |
821 | if (xpid == pid) | |
822 | break; | |
823 | sigsetmask(omask); | |
824 | return(!status); | |
825 | } | |
826 | ||
0a319615 | 827 | static char * |
0ffe40b3 MD |
828 | skip(char *cp) |
829 | { | |
830 | ||
831 | while (*cp != '\0' && isspace(*cp)) | |
832 | cp++; | |
833 | if (*cp == '\0' || *cp == '#') | |
834 | return (NULL); | |
835 | return (cp); | |
836 | } | |
837 | ||
0a319615 | 838 | static char * |
0ffe40b3 MD |
839 | word(char *cp) |
840 | { | |
841 | char c; | |
842 | ||
843 | while (*cp != '\0' && !isspace(*cp) && *cp != '#') | |
844 | cp++; | |
845 | if ((c = *cp) != '\0') { | |
846 | *cp++ = '\0'; | |
847 | if (c != '#') | |
848 | return (skip(cp)); | |
849 | } | |
850 | return (NULL); | |
851 | } | |
852 | ||
853 | /* | |
854 | * Read an ascii label in from fd f, | |
855 | * in the same format as that put out by display(), | |
856 | * and fill in lp. | |
857 | */ | |
0a319615 | 858 | static int |
0ffe40b3 MD |
859 | getasciilabel(FILE *f, struct disklabel64 *lp) |
860 | { | |
861 | char *cp; | |
862 | u_int part; | |
863 | char *tp, line[BUFSIZ]; | |
864 | u_long v; | |
865 | uint32_t blksize = 0; | |
866 | uint64_t vv; | |
867 | int lineno = 0, errors = 0; | |
868 | char empty[] = ""; | |
869 | ||
870 | bzero(&part_set, sizeof(part_set)); | |
871 | bzero(&part_size_type, sizeof(part_size_type)); | |
872 | bzero(&part_offset_type, sizeof(part_offset_type)); | |
873 | while (fgets(line, sizeof(line) - 1, f)) { | |
874 | lineno++; | |
678e8cc6 | 875 | if ((cp = strchr(line,'\n')) != NULL) |
0ffe40b3 MD |
876 | *cp = '\0'; |
877 | cp = skip(line); | |
878 | if (cp == NULL) | |
879 | continue; | |
880 | tp = strchr(cp, ':'); | |
881 | if (tp == NULL) { | |
882 | fprintf(stderr, "line %d: syntax error\n", lineno); | |
883 | errors++; | |
884 | continue; | |
885 | } | |
886 | *tp++ = '\0', tp = skip(tp); | |
887 | if (sscanf(cp, "%lu partitions", &v) == 1) { | |
888 | if (v == 0 || v > MAXPARTITIONS64) { | |
889 | fprintf(stderr, | |
890 | "line %d: bad # of partitions\n", lineno); | |
891 | lp->d_npartitions = MAXPARTITIONS64; | |
892 | errors++; | |
893 | } else | |
894 | lp->d_npartitions = v; | |
895 | continue; | |
896 | } | |
897 | if (tp == NULL) | |
898 | tp = empty; | |
899 | ||
900 | if (streq(cp, "diskid")) { | |
901 | uint32_t status = 0; | |
529d55c9 | 902 | uuid_from_string(tp, &lp->d_stor_uuid, &status); |
0ffe40b3 MD |
903 | if (status != uuid_s_ok) { |
904 | fprintf(stderr, | |
905 | "line %d: %s: illegal UUID\n", | |
906 | lineno, tp); | |
907 | errors++; | |
908 | } | |
909 | continue; | |
910 | } | |
911 | if (streq(cp, "label")) { | |
0a319615 | 912 | strlcpy((char *)lp->d_packname, tp, sizeof(lp->d_packname)); |
0ffe40b3 MD |
913 | continue; |
914 | } | |
915 | ||
916 | if (streq(cp, "alignment")) { | |
917 | v = strtoul(tp, NULL, 0); | |
918 | if (v <= 0 || (v & DEV_BMASK) != 0 || v > 1024*1024) { | |
919 | fprintf(stderr, | |
920 | "line %d: %s: bad alignment\n", | |
921 | lineno, tp); | |
922 | errors++; | |
923 | } else { | |
924 | lp->d_align = v; | |
925 | } | |
926 | continue; | |
927 | } | |
928 | if (streq(cp, "total size")) { | |
929 | vv = strtoull(tp, NULL, 0); | |
930 | if (vv == 0 || vv == (uint64_t)-1) { | |
931 | fprintf(stderr, "line %d: %s: bad %s\n", | |
932 | lineno, tp, cp); | |
933 | errors++; | |
934 | } else { | |
935 | lp->d_total_size = vv; | |
936 | } | |
937 | continue; | |
938 | } | |
939 | if (streq(cp, "boot2 data base")) { | |
940 | vv = strtoull(tp, NULL, 0); | |
941 | if (vv == 0 || vv == (uint64_t)-1) { | |
942 | fprintf(stderr, "line %d: %s: bad %s\n", | |
943 | lineno, tp, cp); | |
944 | errors++; | |
945 | } else { | |
946 | lp->d_bbase = vv; | |
947 | } | |
948 | continue; | |
949 | } | |
950 | if (streq(cp, "partitions data base")) { | |
951 | vv = strtoull(tp, NULL, 0); | |
952 | if (vv == 0 || vv == (uint64_t)-1) { | |
953 | fprintf(stderr, "line %d: %s: bad %s\n", | |
954 | lineno, tp, cp); | |
955 | errors++; | |
956 | } else { | |
957 | lp->d_pbase = vv; | |
958 | } | |
959 | continue; | |
960 | } | |
961 | if (streq(cp, "partitions data stop")) { | |
962 | vv = strtoull(tp, NULL, 0); | |
963 | if (vv == 0 || vv == (uint64_t)-1) { | |
964 | fprintf(stderr, "line %d: %s: bad %s\n", | |
965 | lineno, tp, cp); | |
966 | errors++; | |
967 | } else { | |
968 | lp->d_pstop = vv; | |
969 | } | |
970 | continue; | |
971 | } | |
972 | if (streq(cp, "backup label")) { | |
973 | vv = strtoull(tp, NULL, 0); | |
974 | if (vv == 0 || vv == (uint64_t)-1) { | |
975 | fprintf(stderr, "line %d: %s: bad %s\n", | |
976 | lineno, tp, cp); | |
977 | errors++; | |
978 | } else { | |
979 | lp->d_abase = vv; | |
980 | } | |
981 | continue; | |
982 | } | |
983 | if (streq(cp, "display block size")) { | |
984 | v = strtoul(tp, NULL, 0); | |
985 | if (v <= 0 || (v & DEV_BMASK) != 0 || v > 1024*1024) { | |
cd0af6a8 AL |
986 | fprintf(stderr, "line %d: %s: bad %s\n", |
987 | lineno, tp, cp); | |
0ffe40b3 MD |
988 | errors++; |
989 | } else { | |
990 | blksize = v; | |
991 | } | |
992 | continue; | |
993 | } | |
994 | ||
995 | /* the ':' was removed above */ | |
529d55c9 MD |
996 | |
997 | /* | |
998 | * Handle main partition data, e.g. a:, b:, etc. | |
999 | */ | |
1000 | if (*cp < 'a' || *cp > MAX_PART) { | |
0ffe40b3 MD |
1001 | fprintf(stderr, |
1002 | "line %d: %s: Unknown disklabel field\n", lineno, | |
1003 | cp); | |
1004 | errors++; | |
1005 | continue; | |
1006 | } | |
1007 | ||
1008 | /* Process a partition specification line. */ | |
1009 | part = *cp - 'a'; | |
1010 | if (part >= lp->d_npartitions) { | |
1011 | fprintf(stderr, | |
1012 | "line %d: partition name out of range a-%c: %s\n", | |
1013 | lineno, 'a' + lp->d_npartitions - 1, cp); | |
1014 | errors++; | |
1015 | continue; | |
1016 | } | |
0ffe40b3 MD |
1017 | |
1018 | if (blksize == 0) { | |
1019 | fprintf(stderr, "block size to use for partition " | |
1020 | "display was not specified!\n"); | |
1021 | errors++; | |
1022 | continue; | |
1023 | } | |
1024 | ||
529d55c9 MD |
1025 | if (strcmp(cp + 1, "-stor_uuid") == 0) { |
1026 | if (getasciipartuuid(tp, lp, part, lineno, blksize)) { | |
1027 | errors++; | |
1028 | break; | |
1029 | } | |
1030 | continue; | |
1031 | } else if (cp[1] == 0) { | |
1032 | part_set[part] = 1; | |
1033 | if (getasciipartspec(tp, lp, part, lineno, blksize)) { | |
1034 | errors++; | |
1035 | break; | |
1036 | } | |
1037 | continue; | |
0ffe40b3 | 1038 | } |
529d55c9 MD |
1039 | fprintf(stderr, "line %d: %s: Unknown disklabel field\n", |
1040 | lineno, cp); | |
1041 | errors++; | |
1042 | continue; | |
0ffe40b3 MD |
1043 | } |
1044 | errors += checklabel(lp); | |
1045 | return (errors == 0); | |
1046 | } | |
1047 | ||
0a319615 | 1048 | static int |
0ffe40b3 MD |
1049 | parse_field_val(char **tp, char **cp, u_int64_t *vv, int lineno) |
1050 | { | |
1051 | char *tmp; | |
1052 | ||
1053 | if (*tp == NULL || **tp == 0) { | |
1054 | fprintf(stderr, "line %d: too few numeric fields\n", lineno); | |
1055 | return(-1); | |
1056 | } | |
1057 | *cp = *tp; | |
1058 | *tp = word(*cp); | |
1059 | *vv = strtoull(*cp, &tmp, 0); | |
1060 | if (*vv == ULLONG_MAX) { | |
1061 | fprintf(stderr, "line %d: illegal number\n", lineno); | |
1062 | return(-1); | |
1063 | } | |
1064 | if (tmp) | |
1065 | return(*tmp); | |
1066 | else | |
1067 | return(0); | |
1068 | } | |
1069 | ||
1070 | /* | |
1071 | * Read a partition line into partition `part' in the specified disklabel. | |
1072 | * Return 0 on success, 1 on failure. | |
1073 | */ | |
0a319615 | 1074 | static int |
529d55c9 MD |
1075 | getasciipartspec(char *tp, struct disklabel64 *lp, int part, |
1076 | int lineno, uint32_t blksize) | |
0ffe40b3 MD |
1077 | { |
1078 | struct partition64 *pp; | |
1079 | char *cp; | |
1080 | const char **cpp; | |
1081 | int r; | |
1082 | u_long v; | |
1083 | uint64_t vv; | |
1084 | uint64_t mpx; | |
1085 | ||
1086 | pp = &lp->d_partitions[part]; | |
1087 | cp = NULL; | |
1088 | ||
1089 | /* | |
1090 | * size | |
1091 | */ | |
1092 | r = parse_field_val(&tp, &cp, &vv, lineno); | |
1093 | if (r < 0) | |
1094 | return (1); | |
1095 | ||
1096 | mpx = 1; | |
1097 | switch(r) { | |
1098 | case 0: | |
1099 | mpx = blksize; | |
1100 | break; | |
1101 | case '%': | |
1102 | /* mpx = 1; */ | |
1103 | break; | |
1104 | case '*': | |
1105 | mpx = 0; | |
1106 | break; | |
f61a91d2 SW |
1107 | case 't': |
1108 | case 'T': | |
1109 | mpx *= 1024ULL; | |
1110 | /* fall through */ | |
0ffe40b3 MD |
1111 | case 'g': |
1112 | case 'G': | |
1113 | mpx *= 1024ULL; | |
1114 | /* fall through */ | |
1115 | case 'm': | |
1116 | case 'M': | |
1117 | mpx *= 1024ULL; | |
1118 | /* fall through */ | |
1119 | case 'k': | |
1120 | case 'K': | |
1121 | mpx *= 1024ULL; | |
1122 | r = 0; /* eat the suffix */ | |
1123 | break; | |
1124 | default: | |
f61a91d2 | 1125 | Warning("unknown size specifier '%c' (*/%%/K/M/G/T are valid)", |
0ffe40b3 MD |
1126 | r); |
1127 | return(1); | |
1128 | } | |
1129 | ||
1130 | part_size_type[part] = r; | |
1131 | if (vv == 0 && r != '*') { | |
1132 | fprintf(stderr, | |
1133 | "line %d: %s: bad partition size (0)\n", lineno, cp); | |
1134 | return (1); | |
1135 | } | |
1136 | pp->p_bsize = vv * mpx; | |
1137 | ||
1138 | /* | |
1139 | * offset | |
1140 | */ | |
1141 | r = parse_field_val(&tp, &cp, &vv, lineno); | |
1142 | if (r < 0) | |
1143 | return (1); | |
1144 | part_offset_type[part] = r; | |
1145 | switch(r) { | |
1146 | case '*': | |
1147 | pp->p_boffset = 0; | |
1148 | break; | |
1149 | case 0: | |
1150 | pp->p_boffset = vv * blksize + lp->d_pbase; | |
1151 | break; | |
1152 | default: | |
1153 | fprintf(stderr, | |
1154 | "line %d: %s: bad suffix on partition offset (%c)\n", | |
1155 | lineno, cp, r); | |
1156 | return (1); | |
1157 | } | |
1158 | ||
1159 | /* | |
1160 | * fstype | |
1161 | */ | |
d5c4918a AHJ |
1162 | if (tp == NULL) { |
1163 | fprintf(stderr, | |
1164 | "line %d: no filesystem type was specified\n", lineno); | |
1165 | return(1); | |
1166 | } | |
0ffe40b3 MD |
1167 | cp = tp; |
1168 | tp = word(cp); | |
a8de4644 MD |
1169 | for (cpp = fstypenames; cpp < &fstypenames[FSMAXTYPES]; cpp++) { |
1170 | if (*cpp && strcasecmp(*cpp, cp) == 0) | |
0ffe40b3 | 1171 | break; |
a8de4644 | 1172 | } |
0ffe40b3 MD |
1173 | if (*cpp != NULL) { |
1174 | pp->p_fstype = cpp - fstypenames; | |
1175 | } else { | |
1176 | if (isdigit(*cp)) | |
1177 | v = strtoul(cp, NULL, 0); | |
1178 | else | |
1179 | v = FSMAXTYPES; | |
1180 | if (v >= FSMAXTYPES) { | |
1181 | fprintf(stderr, | |
1182 | "line %d: Warning, unknown filesystem type %s\n", | |
1183 | lineno, cp); | |
1184 | v = FS_UNUSED; | |
1185 | } | |
1186 | pp->p_fstype = v; | |
1187 | } | |
1188 | ||
1189 | cp = tp; | |
1190 | if (tp) { | |
1191 | fprintf(stderr, "line %d: Warning, extra data on line\n", | |
1192 | lineno); | |
1193 | } | |
1194 | return(0); | |
1195 | } | |
1196 | ||
0a319615 | 1197 | static int |
529d55c9 MD |
1198 | getasciipartuuid(char *tp, struct disklabel64 *lp, int part, |
1199 | int lineno, uint32_t blksize __unused) | |
1200 | { | |
1201 | struct partition64 *pp; | |
1202 | uint32_t status; | |
1203 | char *cp; | |
1204 | ||
1205 | pp = &lp->d_partitions[part]; | |
1206 | ||
1207 | cp = tp; | |
1208 | tp = word(cp); | |
1209 | uuid_from_string(cp, &pp->p_stor_uuid, &status); | |
1210 | if (status != uuid_s_ok) { | |
1211 | fprintf(stderr, "line %d: Illegal storage uuid specification\n", | |
1212 | lineno); | |
1213 | return(1); | |
1214 | } | |
1215 | return(0); | |
1216 | } | |
1217 | ||
0ffe40b3 MD |
1218 | /* |
1219 | * Check disklabel for errors and fill in | |
1220 | * derived fields according to supplied values. | |
1221 | */ | |
0a319615 | 1222 | static int |
0ffe40b3 MD |
1223 | checklabel(struct disklabel64 *lp) |
1224 | { | |
1225 | struct partition64 *pp; | |
1226 | int errors = 0; | |
1227 | char part; | |
1228 | u_int64_t total_size; | |
1229 | u_int64_t current_offset; | |
1230 | u_long total_percent; | |
1231 | int seen_default_offset; | |
1232 | int hog_part; | |
1233 | int i, j; | |
1234 | struct partition64 *pp2; | |
1235 | u_int64_t off; | |
1236 | ||
1237 | if (lp->d_align < 512 || | |
1238 | (lp->d_align ^ (lp->d_align - 1)) != lp->d_align * 2 - 1) { | |
1239 | Warning("Illegal alignment specified: %u\n", lp->d_align); | |
1240 | return (1); | |
1241 | } | |
1242 | if (lp->d_npartitions > MAXPARTITIONS64) { | |
1243 | Warning("number of partitions (%u) > MAXPARTITIONS (%d)", | |
1244 | lp->d_npartitions, MAXPARTITIONS64); | |
1245 | return (1); | |
1246 | } | |
1247 | off = offsetof(struct disklabel64, d_partitions[lp->d_npartitions]); | |
1248 | off = (off + lp->d_align - 1) & ~(int64_t)(lp->d_align - 1); | |
1249 | ||
1250 | if (lp->d_bbase < off || lp->d_bbase % lp->d_align) { | |
1251 | Warning("illegal boot2 data base "); | |
1252 | return (1); | |
1253 | } | |
5179f0c5 MD |
1254 | |
1255 | /* | |
1256 | * pbase can be unaligned slice-relative but will be | |
1257 | * aligned physically. | |
1258 | */ | |
1259 | if (lp->d_pbase < lp->d_bbase) { | |
0ffe40b3 MD |
1260 | Warning("illegal partition data base"); |
1261 | return (1); | |
1262 | } | |
5179f0c5 | 1263 | if (lp->d_pstop < lp->d_pbase) { |
0ffe40b3 MD |
1264 | Warning("illegal partition data stop"); |
1265 | return (1); | |
1266 | } | |
1267 | if (lp->d_pstop > lp->d_total_size) { | |
a276dc6b | 1268 | printf("%012jx\n%012jx\n", |
1f5e0b99 | 1269 | (uintmax_t)lp->d_pstop, (uintmax_t)lp->d_total_size); |
0ffe40b3 MD |
1270 | Warning("disklabel control info is beyond the total size"); |
1271 | return (1); | |
1272 | } | |
1273 | if (lp->d_abase && | |
5179f0c5 | 1274 | (lp->d_abase < lp->d_pstop || |
0ffe40b3 MD |
1275 | lp->d_abase > lp->d_total_size - off)) { |
1276 | Warning("illegal backup label location"); | |
1277 | return (1); | |
1278 | } | |
1279 | ||
1280 | /* first allocate space to the partitions, then offsets */ | |
1281 | total_size = 0; /* in bytes */ | |
1282 | total_percent = 0; /* in percent */ | |
1283 | hog_part = -1; | |
1284 | /* find all fixed partitions */ | |
1285 | for (i = 0; i < (int)lp->d_npartitions; i++) { | |
1286 | pp = &lp->d_partitions[i]; | |
1287 | if (part_set[i]) { | |
1288 | if (part_size_type[i] == '*') { | |
b00e432b MD |
1289 | if (part_offset_type[i] != '*') { |
1290 | if (total_size < pp->p_boffset) | |
1291 | total_size = pp->p_boffset; | |
1292 | } | |
1293 | if (hog_part != -1) { | |
0ffe40b3 MD |
1294 | Warning("Too many '*' partitions (%c and %c)", |
1295 | hog_part + 'a',i + 'a'); | |
b00e432b | 1296 | } else { |
0ffe40b3 | 1297 | hog_part = i; |
b00e432b | 1298 | } |
0ffe40b3 MD |
1299 | } else { |
1300 | off_t size; | |
1301 | ||
1302 | size = pp->p_bsize; | |
1303 | if (part_size_type[i] == '%') { | |
0a319615 | 1304 | /* |
0ffe40b3 MD |
1305 | * don't count %'s yet |
1306 | */ | |
1307 | total_percent += size; | |
1308 | } else { | |
1309 | /* | |
1310 | * Value has already been converted | |
1311 | * to bytes. | |
1312 | */ | |
1313 | if (size % lp->d_align != 0) { | |
1314 | Warning("partition %c's size is not properly aligned", | |
1315 | i + 'a'); | |
1316 | } | |
1317 | total_size += size; | |
1318 | } | |
1319 | } | |
1320 | } | |
1321 | } | |
1322 | /* handle % partitions - note %'s don't need to add up to 100! */ | |
1323 | if (total_percent != 0) { | |
1324 | int64_t free_space; | |
1325 | int64_t space_left; | |
1326 | ||
1327 | free_space = (int64_t)(lp->d_pstop - lp->d_pbase - total_size); | |
5179f0c5 MD |
1328 | free_space &= ~(u_int64_t)(lp->d_align - 1); |
1329 | ||
0ffe40b3 MD |
1330 | space_left = free_space; |
1331 | if (total_percent > 100) { | |
1332 | fprintf(stderr,"total percentage %lu is greater than 100\n", | |
1333 | total_percent); | |
1334 | errors++; | |
1335 | } | |
1336 | ||
1337 | if (free_space > 0) { | |
1338 | for (i = 0; i < (int)lp->d_npartitions; i++) { | |
1339 | pp = &lp->d_partitions[i]; | |
1340 | if (part_set[i] && part_size_type[i] == '%') { | |
1341 | /* careful of overflows! and integer roundoff */ | |
1342 | pp->p_bsize = ((double)pp->p_bsize/100) * free_space; | |
1343 | pp->p_bsize = (pp->p_bsize + lp->d_align - 1) & ~(u_int64_t)(lp->d_align - 1); | |
1344 | if ((int64_t)pp->p_bsize > space_left) | |
1345 | pp->p_bsize = (u_int64_t)space_left; | |
1346 | total_size += pp->p_bsize; | |
1347 | space_left -= pp->p_bsize; | |
1348 | } | |
1349 | } | |
1350 | } else { | |
a276dc6b MD |
1351 | fprintf(stderr, "%jd bytes available to give to " |
1352 | "'*' and '%%' partitions\n", | |
1353 | (intmax_t)free_space); | |
0ffe40b3 MD |
1354 | errors++; |
1355 | /* fix? set all % partitions to size 0? */ | |
1356 | } | |
1357 | } | |
1358 | /* give anything remaining to the hog partition */ | |
1359 | if (hog_part != -1) { | |
5179f0c5 MD |
1360 | off = lp->d_pstop - lp->d_pbase - total_size; |
1361 | off &= ~(u_int64_t)(lp->d_align - 1); | |
1362 | lp->d_partitions[hog_part].p_bsize = off; | |
0ffe40b3 MD |
1363 | total_size = lp->d_pstop - lp->d_pbase; |
1364 | } | |
1365 | ||
1366 | /* Now set the offsets for each partition */ | |
1367 | current_offset = lp->d_pbase; | |
1368 | seen_default_offset = 0; | |
1369 | for (i = 0; i < (int)lp->d_npartitions; i++) { | |
1370 | part = 'a' + i; | |
1371 | pp = &lp->d_partitions[i]; | |
1372 | if (pp->p_bsize == 0) | |
1373 | continue; | |
1374 | if (part_set[i]) { | |
1375 | if (part_offset_type[i] == '*') { | |
1376 | pp->p_boffset = current_offset; | |
1377 | seen_default_offset = 1; | |
1378 | } else { | |
1379 | /* allow them to be out of order for old-style tables */ | |
0a319615 | 1380 | if (pp->p_boffset < current_offset && |
0ffe40b3 MD |
1381 | seen_default_offset && |
1382 | pp->p_fstype != FS_VINUM) { | |
1383 | fprintf(stderr, | |
a276dc6b | 1384 | "Offset 0x%012jx for partition %c overlaps previous partition which ends at 0x%012jx\n", |
1f5e0b99 | 1385 | (uintmax_t)pp->p_boffset, |
a276dc6b | 1386 | i + 'a', |
1f5e0b99 | 1387 | (uintmax_t)current_offset); |
0ffe40b3 MD |
1388 | fprintf(stderr, |
1389 | "Labels with any *'s for offset must be in ascending order by sector\n"); | |
1390 | errors++; | |
1391 | } else if (pp->p_boffset != current_offset && | |
1392 | seen_default_offset) { | |
0a319615 MD |
1393 | /* |
1394 | * this may give unneeded warnings if | |
0ffe40b3 MD |
1395 | * partitions are out-of-order |
1396 | */ | |
1397 | Warning( | |
a276dc6b | 1398 | "Offset 0x%012jx for partition %c doesn't match expected value 0x%012jx", |
0ffe40b3 | 1399 | pp->p_boffset, i + 'a', |
a276dc6b | 1400 | (intmax_t)current_offset); |
0ffe40b3 MD |
1401 | } |
1402 | } | |
0a319615 | 1403 | current_offset = pp->p_boffset + pp->p_bsize; |
0ffe40b3 MD |
1404 | } |
1405 | } | |
1406 | ||
1407 | for (i = 0; i < (int)lp->d_npartitions; i++) { | |
1408 | part = 'a' + i; | |
1409 | pp = &lp->d_partitions[i]; | |
1410 | if (pp->p_bsize == 0 && pp->p_boffset != 0) | |
a276dc6b MD |
1411 | Warning("partition %c: size 0, but offset 0x%012jx", |
1412 | part, (intmax_t)pp->p_boffset); | |
0ffe40b3 MD |
1413 | if (pp->p_bsize == 0) { |
1414 | pp->p_boffset = 0; | |
1415 | continue; | |
1416 | } | |
529d55c9 MD |
1417 | if (uuid_is_nil(&pp->p_stor_uuid, NULL)) |
1418 | uuid_create(&pp->p_stor_uuid, NULL); | |
0ffe40b3 MD |
1419 | |
1420 | if (pp->p_boffset < lp->d_pbase) { | |
1421 | fprintf(stderr, | |
a276dc6b MD |
1422 | "partition %c: offset out of bounds (%jd)\n", |
1423 | part, (intmax_t)(pp->p_boffset - lp->d_pbase)); | |
0ffe40b3 MD |
1424 | errors++; |
1425 | } | |
1426 | if (pp->p_boffset > lp->d_pstop) { | |
1427 | fprintf(stderr, | |
a276dc6b MD |
1428 | "partition %c: offset out of bounds (%jd)\n", |
1429 | part, (intmax_t)(pp->p_boffset - lp->d_pbase)); | |
0ffe40b3 MD |
1430 | errors++; |
1431 | } | |
1432 | if (pp->p_boffset + pp->p_bsize > lp->d_pstop) { | |
1433 | fprintf(stderr, | |
a276dc6b MD |
1434 | "partition %c: size out of bounds (%jd)\n", |
1435 | part, (intmax_t)(pp->p_boffset - lp->d_pbase)); | |
0ffe40b3 MD |
1436 | errors++; |
1437 | } | |
1438 | ||
1439 | /* check for overlaps */ | |
1440 | /* this will check for all possible overlaps once and only once */ | |
1441 | for (j = 0; j < i; j++) { | |
1442 | pp2 = &lp->d_partitions[j]; | |
1443 | if (pp->p_fstype != FS_VINUM && | |
1444 | pp2->p_fstype != FS_VINUM && | |
1445 | part_set[i] && part_set[j]) { | |
1446 | if (pp2->p_boffset < pp->p_boffset + pp->p_bsize && | |
1447 | (pp2->p_boffset + pp2->p_bsize > pp->p_boffset || | |
1448 | pp2->p_boffset >= pp->p_boffset)) { | |
1449 | fprintf(stderr,"partitions %c and %c overlap!\n", | |
1450 | j + 'a', i + 'a'); | |
1451 | errors++; | |
1452 | } | |
1453 | } | |
1454 | } | |
1455 | } | |
1456 | for (; i < (int)lp->d_npartitions; i++) { | |
1457 | part = 'a' + i; | |
1458 | pp = &lp->d_partitions[i]; | |
1459 | if (pp->p_bsize || pp->p_boffset) | |
a276dc6b MD |
1460 | Warning("unused partition %c: size 0x%012jx " |
1461 | "offset 0x%012jx", | |
1462 | 'a' + i, (intmax_t)pp->p_bsize, | |
1463 | (intmax_t)pp->p_boffset); | |
0ffe40b3 MD |
1464 | } |
1465 | return (errors); | |
1466 | } | |
1467 | ||
35a9ab8a MD |
1468 | static int |
1469 | expandlabel(int f, struct disklabel64 *lp, int *wbackp) | |
1470 | { | |
1471 | const uint64_t onemeg = 1024 * 1024; | |
1472 | uint64_t pstop; | |
1473 | uint64_t abase; | |
1474 | uint64_t tsize; | |
1475 | uint64_t bsize; | |
1476 | struct partinfo info; | |
1477 | struct partition64 *part; | |
1478 | struct partition64 *best; | |
1479 | struct stat st; | |
1480 | uint32_t n; | |
1481 | ||
1482 | if (ioctl(f, DIOCGPART, &info) == 0) { | |
1483 | st.st_size = info.media_size; | |
1484 | } else if (fstat(f, &st) == 0) { | |
1485 | ; | |
1486 | } else { | |
1487 | fprintf(stderr, "disklabel64: cannot ioctl/stat device\n"); | |
1488 | return EINVAL; | |
1489 | } | |
1490 | abase = st.st_size - 4096; | |
1491 | pstop = abase & ~(onemeg - 1); | |
1492 | tsize = st.st_size; | |
1493 | ||
1494 | printf("partitions data stop: %ld -> %ld\n", lp->d_pstop, pstop); | |
1495 | printf("backup label: %ld -> %ld\n", lp->d_abase, abase); | |
1496 | printf("total size: %ld -> %ld\n", lp->d_total_size, tsize); | |
1497 | ||
1498 | /* | |
1499 | * This directive does not shrink disklabels!!! | |
1500 | */ | |
1501 | if (lp->d_pstop > pstop || | |
1502 | lp->d_abase > abase || | |
1503 | lp->d_total_size > tsize) { | |
1504 | fprintf(stderr, "disklabel64: cannot expand " | |
1505 | "disklabel because it would " | |
1506 | "shrink!\n"); | |
1507 | return 1; | |
1508 | } | |
1509 | ||
1510 | ||
1511 | if (lp->d_pstop == pstop && | |
1512 | lp->d_abase == abase && | |
1513 | lp->d_total_size == tsize) { | |
e04444f9 MD |
1514 | printf("disklabel64: expand: " |
1515 | "no change in disklabel " | |
1516 | "size\n"); | |
35a9ab8a MD |
1517 | } else { |
1518 | lp->d_pstop = pstop; | |
1519 | lp->d_abase = abase; | |
1520 | lp->d_total_size = tsize; | |
1521 | *wbackp = 1; | |
1522 | } | |
1523 | ||
1524 | /* | |
1525 | * Resize the last partition | |
1526 | */ | |
1527 | if (expandopt > 1) { | |
1528 | best = NULL; | |
1529 | for (n = 0; n < lp->d_npartitions; ++n) { | |
1530 | part = &lp->d_partitions[n]; | |
1531 | if (best == NULL || best->p_boffset < part->p_boffset) | |
1532 | best = part; | |
1533 | } | |
1534 | if (best) { | |
1535 | bsize = lp->d_pstop - best->p_boffset; | |
1536 | if (best->p_bsize > bsize) { | |
e04444f9 MD |
1537 | printf("disklabel64: cannot expand " |
1538 | "partition because it would " | |
1539 | "shrink!\n"); | |
35a9ab8a MD |
1540 | return 1; |
1541 | } else if (best->p_bsize == bsize) { | |
e04444f9 MD |
1542 | printf("disklabel64: expand: " |
1543 | "no change in partition " | |
1544 | "size\n"); | |
35a9ab8a | 1545 | } else { |
e04444f9 MD |
1546 | printf("disklabel64: expand: increase part " |
1547 | "%ld to %ld bytes\n", | |
1548 | best->p_bsize, | |
1549 | bsize); | |
35a9ab8a MD |
1550 | best->p_bsize = bsize; |
1551 | *wbackp = 1; | |
1552 | } | |
1553 | } | |
1554 | } | |
1555 | ||
1556 | return 0; | |
1557 | } | |
1558 | ||
0ffe40b3 MD |
1559 | /* |
1560 | * When operating on a "virgin" disk, try getting an initial label | |
1561 | * from the associated device driver. This might work for all device | |
1562 | * drivers that are able to fetch some initial device parameters | |
1563 | * without even having access to a (BSD) disklabel, like SCSI disks, | |
1564 | * most IDE drives, or vn devices. | |
1565 | * | |
1566 | * The device name must be given in its "canonical" form. | |
1567 | */ | |
1568 | static struct disklabel64 dlab; | |
1569 | ||
0a319615 | 1570 | static struct disklabel64 * |
0ffe40b3 MD |
1571 | getvirginlabel(void) |
1572 | { | |
1573 | struct disklabel64 *dl = &dlab; | |
0ffe40b3 MD |
1574 | int f; |
1575 | ||
d736a600 MD |
1576 | if ((f = open(dkname, O_RDONLY)) == -1) { |
1577 | warn("cannot open %s", dkname); | |
0ffe40b3 MD |
1578 | return (NULL); |
1579 | } | |
1580 | ||
1581 | /* | |
0a319615 | 1582 | * Generate a virgin disklabel via ioctl |
0ffe40b3 MD |
1583 | */ |
1584 | if (ioctl(f, DIOCGDVIRGIN64, dl) < 0) { | |
1585 | l_perror("ioctl DIOCGDVIRGIN64"); | |
1586 | close(f); | |
1587 | return (NULL); | |
1588 | } | |
1589 | close(f); | |
1590 | return (dl); | |
1591 | } | |
1592 | ||
1593 | /*VARARGS1*/ | |
0a319615 | 1594 | static void |
0ffe40b3 MD |
1595 | Warning(const char *fmt, ...) |
1596 | { | |
1597 | va_list ap; | |
1598 | ||
1599 | fprintf(stderr, "Warning, "); | |
1600 | va_start(ap, fmt); | |
1601 | vfprintf(stderr, fmt, ap); | |
1602 | fprintf(stderr, "\n"); | |
1603 | va_end(ap); | |
1604 | } | |
1605 | ||
0a319615 | 1606 | static void |
0ffe40b3 MD |
1607 | usage(void) |
1608 | { | |
0fcbc539 | 1609 | fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n", |
bdddbf50 | 1610 | "usage: disklabel64 [-r] disk", |
0ffe40b3 | 1611 | "\t\t(to read label)", |
0a319615 | 1612 | " disklabel64 -w [-r] [-n] disk [type [packid]]", |
0ffe40b3 | 1613 | "\t\t(to write label with existing boot program)", |
bdddbf50 | 1614 | " disklabel64 -e [-r] [-n] disk", |
0ffe40b3 | 1615 | "\t\t(to edit label)", |
bdddbf50 | 1616 | " disklabel64 -R [-r] [-n] disk protofile", |
0ffe40b3 | 1617 | "\t\t(to restore label with existing boot program)", |
0fcbc539 | 1618 | " disklabel64 -B [-n] [-b boot1 -s boot2] disk [type]", |
0ffe40b3 | 1619 | "\t\t(to install boot program with existing label)", |
0a319615 | 1620 | " disklabel64 -w -B [-n] [-b boot1 -s boot2] disk [type [packid]]", |
0ffe40b3 | 1621 | "\t\t(to write label and boot program)", |
0fcbc539 | 1622 | " disklabel64 -R -B [-n] [-b boot1 -s boot2] disk protofile [type]", |
0ffe40b3 | 1623 | "\t\t(to restore label and boot program)", |
bdddbf50 | 1624 | " disklabel64 [-NW] disk", |
0ffe40b3 MD |
1625 | "\t\t(to write disable/enable label)"); |
1626 | exit(1); | |
1627 | } |