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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1987 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * Symmetric Computer Systems. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
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 the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. All advertising materials mentioning features or use of this software | |
17 | * must display the following acknowledgement: | |
18 | * This product includes software developed by the University of | |
19 | * California, Berkeley and its contributors. | |
20 | * 4. Neither the name of the University nor the names of its contributors | |
21 | * may be used to endorse or promote products derived from this software | |
22 | * without specific prior written permission. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
34 | * SUCH DAMAGE. | |
35 | * | |
36 | * PATCHES MAGIC LEVEL PATCH THAT GOT US HERE | |
37 | * -------------------- ----- ---------------------- | |
38 | * CURRENT PATCH LEVEL: 1 00034 | |
39 | * -------------------- ----- ---------------------- | |
40 | * | |
41 | * 18 Sep 92 Gary A Browning Fix expectation of active partition | |
42 | */ | |
43 | ||
44 | #ifndef lint | |
45 | char copyright[] = | |
46 | "@(#) Copyright (c) 1987 The Regents of the University of California.\n\ | |
47 | All rights reserved.\n"; | |
48 | #endif /* not lint */ | |
49 | ||
50 | #ifndef lint | |
51 | static char sccsid[] = "@(#)disklabel.c 5.20 (Berkeley) 2/9/91"; | |
52 | /* from static char sccsid[] = "@(#)disklabel.c 1.2 (Symmetric) 11/28/85"; */ | |
53 | #endif /* not lint */ | |
54 | ||
55 | #include <sys/param.h> | |
56 | #include <sys/signal.h> | |
57 | #include <sys/errno.h> | |
58 | #include <sys/file.h> | |
59 | #include <sys/ioctl.h> | |
60 | #include <ufs/fs.h> | |
61 | #include <string.h> | |
62 | #define DKTYPENAMES | |
63 | #include <sys/disklabel.h> | |
64 | #include <stdio.h> | |
65 | #include <ctype.h> | |
66 | #include "pathnames.h" | |
67 | ||
68 | /* | |
69 | * Disklabel: read and write disklabels. | |
70 | * The label is usually placed on one of the first sectors of the disk. | |
71 | * Many machines (VAX 11/750) also place a bootstrap in the same area, | |
72 | * in which case the label is embedded in the bootstrap. | |
73 | * The bootstrap source must leave space at the proper offset | |
74 | * for the label on such machines. | |
75 | * | |
76 | * On 386BSD, the disklabel may either be at the start of the disk, or, at | |
77 | * the start of an MS/DOS partition. In this way, it can be used either | |
78 | * in concert with other operating systems sharing a disk, or with the | |
79 | * disk dedicated to 386BSD. In shared mode, the DOS disk geometry must be | |
80 | * identical to that which disklabel uses, and the disklabel must solely | |
81 | * describe the space within the partition selected. Otherwise, the disk | |
82 | * must be dedicated to 386BSD. -wfj | |
83 | */ | |
84 | ||
85 | #if defined(vax) | |
86 | #define RAWPARTITION 'c' | |
87 | #endif | |
88 | ||
89 | #if defined(i386) | |
90 | /* with 386BSD, 'c' maps the portion of the disk given over to 386BSD, | |
91 | and 'd' maps the entire drive, ignoring any partition tables */ | |
92 | #define RAWPARTITION 'd' | |
93 | #endif | |
94 | ||
95 | #if defined(vax)==0 && defined(i386)==0 | |
96 | #define RAWPARTITION 'a' | |
97 | #endif | |
98 | ||
99 | #ifndef BBSIZE | |
100 | #define BBSIZE 8192 /* size of boot area, with label */ | |
101 | #endif | |
102 | ||
103 | #if defined(vax) || defined(i386) | |
104 | #define BOOT /* also have bootstrap in "boot area" */ | |
105 | #define BOOTDIR _PATH_BOOTDIR /* source of boot binaries */ | |
106 | #else | |
107 | #ifdef lint | |
108 | #define BOOT | |
109 | #endif | |
110 | #endif | |
111 | ||
112 | #define DEFEDITOR _PATH_VI | |
113 | #define streq(a,b) (strcmp(a,b) == 0) | |
114 | ||
115 | #ifdef BOOT | |
116 | char *xxboot; | |
117 | char *bootxx; | |
118 | #endif | |
119 | ||
120 | char *dkname; | |
121 | char *specname; | |
122 | char tmpfil[] = _PATH_TMP; | |
123 | ||
124 | extern int errno; | |
125 | char namebuf[BBSIZE], *np = namebuf; | |
126 | struct disklabel lab; | |
127 | struct disklabel *readlabel(), *makebootarea(); | |
128 | char bootarea[BBSIZE]; | |
129 | char boot0[MAXPATHLEN]; | |
130 | char boot1[MAXPATHLEN]; | |
131 | ||
132 | enum { UNSPEC, EDIT, NOWRITE, READ, RESTORE, WRITE, WRITEABLE } op = UNSPEC; | |
133 | ||
134 | int rflag; | |
135 | ||
136 | #ifdef DEBUG | |
137 | int debug; | |
138 | #endif | |
139 | ||
140 | #ifdef __386BSD__ | |
141 | struct dos_partition *dosdp; /* 386BSD DOS partition, if found */ | |
142 | struct dos_partition *readmbr(int); | |
143 | #endif | |
144 | ||
145 | main(argc, argv) | |
146 | int argc; | |
147 | char *argv[]; | |
148 | { | |
149 | extern int optind; | |
150 | register struct disklabel *lp; | |
151 | FILE *t; | |
152 | int ch, f, error = 0; | |
153 | char *name = 0, *type; | |
154 | ||
155 | while ((ch = getopt(argc, argv, "NRWerw")) != EOF) | |
156 | switch (ch) { | |
157 | case 'N': | |
158 | if (op != UNSPEC) | |
159 | usage(); | |
160 | op = NOWRITE; | |
161 | break; | |
162 | case 'R': | |
163 | if (op != UNSPEC) | |
164 | usage(); | |
165 | op = RESTORE; | |
166 | break; | |
167 | case 'W': | |
168 | if (op != UNSPEC) | |
169 | usage(); | |
170 | op = WRITEABLE; | |
171 | break; | |
172 | case 'e': | |
173 | if (op != UNSPEC) | |
174 | usage(); | |
175 | op = EDIT; | |
176 | break; | |
177 | case 'r': | |
178 | ++rflag; | |
179 | break; | |
180 | case 'w': | |
181 | if (op != UNSPEC) | |
182 | usage(); | |
183 | op = WRITE; | |
184 | break; | |
185 | #ifdef DEBUG | |
186 | case 'd': | |
187 | debug++; | |
188 | break; | |
189 | #endif | |
190 | case '?': | |
191 | default: | |
192 | usage(); | |
193 | } | |
194 | argc -= optind; | |
195 | argv += optind; | |
196 | if (op == UNSPEC) | |
197 | op = READ; | |
198 | if (argc < 1) | |
199 | usage(); | |
200 | ||
201 | dkname = argv[0]; | |
202 | if (dkname[0] != '/') { | |
203 | (void)sprintf(np, "%sr%s%c", _PATH_DEV, dkname, RAWPARTITION); | |
204 | specname = np; | |
205 | np += strlen(specname) + 1; | |
206 | } else | |
207 | specname = dkname; | |
208 | f = open(specname, op == READ ? O_RDONLY : O_RDWR); | |
209 | if (f < 0 && errno == ENOENT && dkname[0] != '/') { | |
210 | (void)sprintf(specname, "%sr%s", _PATH_DEV, dkname); | |
211 | np = namebuf + strlen(specname) + 1; | |
212 | f = open(specname, op == READ ? O_RDONLY : O_RDWR); | |
213 | } | |
214 | if (f < 0) | |
215 | Perror(specname); | |
216 | ||
217 | #ifdef __386BSD__ | |
218 | /* | |
219 | * Check for presence of DOS partition table in | |
220 | * master boot record. Return pointer to 386BSD | |
221 | * partition, if present. If no valid partition table, | |
222 | * return 0. If valid partition table present, but no | |
223 | * partition to use, return a pointer to a non-386bsd | |
224 | * partition. | |
225 | */ | |
226 | dosdp = readmbr(f); | |
227 | { int mfd; unsigned char params[0x10]; | |
228 | /* sleezy, but we need it fast! */ | |
229 | mfd = open("/dev/mem", 0); | |
230 | lseek(mfd, 0x300, 0); | |
231 | read (mfd, params, 0x10); | |
232 | } | |
233 | ||
234 | #endif | |
235 | ||
236 | switch(op) { | |
237 | case EDIT: | |
238 | if (argc != 1) | |
239 | usage(); | |
240 | lp = readlabel(f); | |
241 | error = edit(lp, f); | |
242 | break; | |
243 | case NOWRITE: { | |
244 | int flag = 0; | |
245 | if (ioctl(f, DIOCWLABEL, (char *)&flag) < 0) | |
246 | Perror("ioctl DIOCWLABEL"); | |
247 | break; | |
248 | } | |
249 | case READ: | |
250 | if (argc != 1) | |
251 | usage(); | |
252 | ||
253 | lp = readlabel(f); | |
254 | display(stdout, lp); | |
255 | error = checklabel(lp); | |
256 | break; | |
257 | case RESTORE: | |
258 | #ifdef BOOT | |
259 | if (rflag) { | |
260 | if (argc == 4) { /* [ priboot secboot ] */ | |
261 | xxboot = argv[2]; | |
262 | bootxx = argv[3]; | |
263 | lab.d_secsize = DEV_BSIZE; /* XXX */ | |
264 | lab.d_bbsize = BBSIZE; /* XXX */ | |
265 | } | |
266 | else if (argc == 3) /* [ disktype ] */ | |
267 | makelabel(argv[2], (char *)NULL, &lab); | |
268 | else { | |
269 | fprintf(stderr, | |
270 | "Must specify either disktype or bootfiles with -r flag of RESTORE option\n"); | |
271 | exit(1); | |
272 | } | |
273 | } | |
274 | else | |
275 | #endif | |
276 | if (argc != 2) | |
277 | usage(); | |
278 | lp = makebootarea(bootarea, &lab); | |
279 | if (!(t = fopen(argv[1],"r"))) | |
280 | Perror(argv[1]); | |
281 | if (getasciilabel(t, lp)) | |
282 | error = writelabel(f, bootarea, lp); | |
283 | break; | |
284 | case WRITE: | |
285 | type = argv[1]; | |
286 | #ifdef BOOT | |
287 | if (argc > 5 || argc < 2) | |
288 | usage(); | |
289 | if (argc > 3) { | |
290 | bootxx = argv[--argc]; | |
291 | xxboot = argv[--argc]; | |
292 | } | |
293 | #else | |
294 | if (argc > 3 || argc < 2) | |
295 | usage(); | |
296 | #endif | |
297 | if (argc > 2) | |
298 | name = argv[--argc]; | |
299 | makelabel(type, name, &lab); | |
300 | lp = makebootarea(bootarea, &lab); | |
301 | *lp = lab; | |
302 | if (checklabel(lp) == 0) | |
303 | error = writelabel(f, bootarea, lp); | |
304 | break; | |
305 | case WRITEABLE: { | |
306 | int flag = 1; | |
307 | if (ioctl(f, DIOCWLABEL, (char *)&flag) < 0) | |
308 | Perror("ioctl DIOCWLABEL"); | |
309 | break; | |
310 | } | |
311 | } | |
312 | exit(error); | |
313 | } | |
314 | ||
315 | /* | |
316 | * Construct a prototype disklabel from /etc/disktab. As a side | |
317 | * effect, set the names of the primary and secondary boot files | |
318 | * if specified. | |
319 | */ | |
320 | makelabel(type, name, lp) | |
321 | char *type, *name; | |
322 | register struct disklabel *lp; | |
323 | { | |
324 | register struct disklabel *dp; | |
325 | char *strcpy(); | |
326 | ||
327 | dp = getdiskbyname(type); | |
328 | if (dp == NULL) { | |
329 | fprintf(stderr, "%s: unknown disk type\n", type); | |
330 | exit(1); | |
331 | } | |
332 | *lp = *dp; | |
333 | #ifdef BOOT | |
334 | /* | |
335 | * Check if disktab specifies the bootstraps (b0 or b1). | |
336 | */ | |
337 | if (!xxboot && lp->d_boot0) { | |
338 | if (*lp->d_boot0 != '/') | |
339 | (void)sprintf(boot0, "%s/%s", BOOTDIR, lp->d_boot0); | |
340 | else | |
341 | (void)strcpy(boot0, lp->d_boot0); | |
342 | xxboot = boot0; | |
343 | } | |
344 | if (!bootxx && lp->d_boot1) { | |
345 | if (*lp->d_boot1 != '/') | |
346 | (void)sprintf(boot1, "%s/%s", BOOTDIR, lp->d_boot1); | |
347 | else | |
348 | (void)strcpy(boot1, lp->d_boot1); | |
349 | bootxx = boot1; | |
350 | } | |
351 | /* | |
352 | * If bootstraps not specified anywhere, makebootarea() | |
353 | * will choose ones based on the name of the disk special | |
354 | * file. E.g. /dev/ra0 -> raboot, bootra | |
355 | */ | |
356 | #endif /*BOOT*/ | |
357 | /* d_packname is union d_boot[01], so zero */ | |
358 | bzero(lp->d_packname, sizeof(lp->d_packname)); | |
359 | if (name) | |
360 | (void)strncpy(lp->d_packname, name, sizeof(lp->d_packname)); | |
361 | } | |
362 | ||
363 | writelabel(f, boot, lp) | |
364 | int f; | |
365 | char *boot; | |
366 | register struct disklabel *lp; | |
367 | { | |
368 | register int i; | |
369 | int flag; | |
370 | off_t lseek(); | |
371 | #ifdef __386BSD__ | |
372 | off_t lbl_off; struct partition *pp = lp->d_partitions; | |
373 | #endif | |
374 | ||
375 | lp->d_magic = DISKMAGIC; | |
376 | lp->d_magic2 = DISKMAGIC; | |
377 | lp->d_checksum = 0; | |
378 | lp->d_checksum = dkcksum(lp); | |
379 | if (rflag) { | |
380 | ||
381 | #ifdef __386BSD__ | |
382 | /* | |
383 | * If 386BSD DOS partition is missing, or if | |
384 | * the label to be written is not within partition, | |
385 | * prompt first. Need to allow this in case operator | |
386 | * wants to convert the drive for dedicated use. | |
387 | * In this case, partition 'a' had better start at 0, | |
388 | * otherwise we reject the request as meaningless. -wfj | |
389 | */ | |
390 | ||
391 | if (dosdp && dosdp->dp_typ == DOSPTYP_386BSD && pp->p_size && | |
392 | dosdp->dp_start == pp->p_offset) { | |
393 | lbl_off = pp->p_offset; | |
394 | } else { | |
395 | if (dosdp) { | |
396 | char c; | |
397 | ||
398 | printf("overwriting disk with DOS partition table? (n):"); | |
399 | fflush(stdout); | |
400 | c = getchar(); | |
401 | if (c != EOF && c != (int)'\n') | |
402 | while (getchar() != (int)'\n') | |
403 | ; | |
404 | if (c == (int)'n') | |
405 | exit(0); | |
406 | } | |
407 | lbl_off = 0; | |
408 | } | |
409 | (void)lseek(f, (off_t)(lbl_off * lp->d_secsize), L_SET); | |
410 | #endif | |
411 | /* | |
412 | * First set the kernel disk label, | |
413 | * then write a label to the raw disk. | |
414 | * If the SDINFO ioctl fails because it is unimplemented, | |
415 | * keep going; otherwise, the kernel consistency checks | |
416 | * may prevent us from changing the current (in-core) | |
417 | * label. | |
418 | */ | |
419 | if (ioctl(f, DIOCSDINFO, lp) < 0 && | |
420 | errno != ENODEV && errno != ENOTTY) { | |
421 | l_perror("ioctl DIOCSDINFO"); | |
422 | /*return (1);*/ | |
423 | } | |
424 | ||
425 | /* | |
426 | * write enable label sector before write (if necessary), | |
427 | * disable after writing. | |
428 | */ | |
429 | flag = 1; | |
430 | if (ioctl(f, DIOCWLABEL, &flag) < 0) | |
431 | perror("ioctl DIOCWLABEL"); | |
432 | if (write(f, boot, lp->d_bbsize) != lp->d_bbsize) { | |
433 | perror("write"); | |
434 | return (1); | |
435 | } | |
436 | flag = 0; | |
437 | (void) ioctl(f, DIOCWLABEL, &flag); | |
438 | } else if (ioctl(f, DIOCWDINFO, lp) < 0) { | |
439 | l_perror("ioctl DIOCWDINFO"); | |
440 | return (1); | |
441 | } | |
442 | ||
443 | if (lp->d_type != DTYPE_SCSI && lp->d_flags & D_BADSECT) { | |
444 | daddr_t alt; | |
445 | ||
446 | alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; | |
447 | for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { | |
448 | (void)lseek(f, (off_t)((alt + i) * lp->d_secsize), L_SET); | |
449 | if (write(f, boot, lp->d_secsize) < lp->d_secsize) { | |
450 | int oerrno = errno; | |
451 | fprintf(stderr, "alternate label %d ", i/2); | |
452 | errno = oerrno; | |
453 | perror("write"); | |
454 | } | |
455 | } | |
456 | } | |
457 | ||
458 | return (0); | |
459 | } | |
460 | ||
461 | l_perror(s) | |
462 | char *s; | |
463 | { | |
464 | int saverrno = errno; | |
465 | ||
466 | fprintf(stderr, "disklabel: %s: ", s); | |
467 | ||
468 | switch (saverrno) { | |
469 | ||
470 | case ESRCH: | |
471 | fprintf(stderr, "No disk label on disk;\n"); | |
472 | fprintf(stderr, | |
473 | "use \"disklabel -r\" to install initial label\n"); | |
474 | break; | |
475 | ||
476 | case EINVAL: | |
477 | fprintf(stderr, "Label magic number or checksum is wrong!\n"); | |
478 | fprintf(stderr, "(disklabel or kernel is out of date?)\n"); | |
479 | break; | |
480 | ||
481 | case EBUSY: | |
482 | fprintf(stderr, "Open partition would move or shrink\n"); | |
483 | break; | |
484 | ||
485 | case EXDEV: | |
486 | fprintf(stderr, | |
487 | "Labeled partition or 'a' partition must start at beginning of disk\n"); | |
488 | fprintf(stderr, "or DOS partition\n"); | |
489 | break; | |
490 | ||
491 | default: | |
492 | errno = saverrno; | |
493 | perror((char *)NULL); | |
494 | break; | |
495 | } | |
496 | } | |
497 | ||
498 | #ifdef __386BSD__ | |
499 | /* | |
500 | * Fetch DOS partition table from disk. | |
501 | */ | |
502 | struct dos_partition * | |
503 | readmbr(f) | |
504 | int f; | |
505 | { | |
506 | static struct dos_partition dos_partitions[NDOSPART]; | |
507 | struct dos_partition *dp, *bsdp; | |
508 | char mbr[DEV_BSIZE]; | |
509 | int i, npart, nboot, njunk; | |
510 | ||
511 | (void)lseek(f, (off_t)DOSBBSECTOR, L_SET); | |
512 | if (read(f, mbr, sizeof(mbr)) < sizeof(mbr)) | |
513 | Perror("can't read master boot record"); | |
514 | ||
515 | bcopy(mbr + DOSPARTOFF, dos_partitions, sizeof(dos_partitions)); | |
516 | ||
517 | /* | |
518 | * Don't (yet) know disk geometry (BIOS), use | |
519 | * partition table to find 386BSD partition, and obtain | |
520 | * disklabel from there. | |
521 | */ | |
522 | dp = dos_partitions; | |
523 | npart = njunk = nboot = 0; | |
78ed81a3 | 524 | bsdp = NULL; |
15637ed4 RG |
525 | for (i = 0; i < NDOSPART; i++, dp++) { |
526 | if (dp->dp_flag != 0x80 && dp->dp_flag != 0) njunk++; | |
527 | else | |
528 | if (dp->dp_size > 0) npart++; | |
529 | if (dp->dp_flag == 0x80) nboot++; | |
530 | if (dp->dp_size && dp->dp_typ == DOSPTYP_386BSD) | |
531 | bsdp = dp; | |
532 | } | |
533 | ||
534 | /* valid partition table? */ | |
535 | if (npart == 0 || njunk) /* 18 Sep 92*/ | |
536 | /* was: if (nboot != 1 || npart == 0 || njunk)*/ | |
537 | return (0); | |
538 | /* if no bsd partition, pass back first one */ | |
539 | if (!bsdp) { | |
540 | Warning("DOS partition table with no valid 386BSD partition"); | |
541 | return (dos_partitions); | |
542 | } | |
543 | return (bsdp); | |
544 | } | |
545 | #endif | |
546 | ||
547 | /* | |
548 | * Fetch disklabel for disk. | |
549 | * Use ioctl to get label unless -r flag is given. | |
550 | */ | |
551 | struct disklabel * | |
552 | readlabel(f) | |
553 | int f; | |
554 | { | |
555 | register struct disklabel *lp; | |
556 | ||
557 | if (rflag) { | |
558 | #ifdef __386BSD__ | |
559 | off_t sectoffset; | |
560 | ||
561 | if (dosdp && dosdp->dp_size && dosdp->dp_typ == DOSPTYP_386BSD) | |
562 | sectoffset = dosdp->dp_start * DEV_BSIZE; | |
563 | else | |
564 | sectoffset = 0; | |
565 | (void)lseek(f, sectoffset, L_SET); | |
566 | #endif | |
567 | ||
568 | if (read(f, bootarea, BBSIZE) < BBSIZE) | |
569 | Perror(specname); | |
570 | for (lp = (struct disklabel *)bootarea; | |
571 | lp <= (struct disklabel *)(bootarea + BBSIZE - sizeof(*lp)); | |
572 | lp = (struct disklabel *)((char *)lp + 16)) | |
573 | if (lp->d_magic == DISKMAGIC && | |
574 | lp->d_magic2 == DISKMAGIC) | |
575 | break; | |
576 | if (lp > (struct disklabel *)(bootarea+BBSIZE-sizeof(*lp)) || | |
577 | lp->d_magic != DISKMAGIC || lp->d_magic2 != DISKMAGIC || | |
578 | dkcksum(lp) != 0) { | |
579 | fprintf(stderr, | |
580 | "Bad pack magic number (label is damaged, or pack is unlabeled)\n"); | |
581 | /* lp = (struct disklabel *)(bootarea + LABELOFFSET); | |
582 | exit (1); */ | |
583 | goto tryioctl; | |
584 | } | |
585 | } else { | |
586 | tryioctl: | |
587 | lp = &lab; | |
588 | if (ioctl(f, DIOCGDINFO, lp) < 0) | |
589 | Perror("ioctl DIOCGDINFO"); | |
590 | } | |
591 | return (lp); | |
592 | } | |
593 | ||
594 | struct disklabel * | |
595 | makebootarea(boot, dp) | |
596 | char *boot; | |
597 | register struct disklabel *dp; | |
598 | { | |
599 | struct disklabel *lp; | |
600 | register char *p; | |
601 | int b; | |
602 | #ifdef BOOT | |
603 | char *dkbasename; | |
604 | #endif /*BOOT*/ | |
605 | ||
606 | lp = (struct disklabel *)(boot + (LABELSECTOR * dp->d_secsize) + | |
607 | LABELOFFSET); | |
608 | #ifdef BOOT | |
609 | if (!rflag) | |
610 | return (lp); | |
611 | ||
612 | if (xxboot == NULL || bootxx == NULL) { | |
613 | dkbasename = np; | |
614 | if ((p = rindex(dkname, '/')) == NULL) | |
615 | p = dkname; | |
616 | else | |
617 | p++; | |
618 | while (*p && !isdigit(*p)) | |
619 | *np++ = *p++; | |
620 | *np++ = '\0'; | |
621 | ||
622 | if (xxboot == NULL) { | |
623 | (void)sprintf(np, "%s/%sboot", BOOTDIR, dkbasename); | |
624 | if (access(np, F_OK) < 0 && dkbasename[0] == 'r') | |
625 | dkbasename++; | |
626 | xxboot = np; | |
627 | (void)sprintf(xxboot, "%s/%sboot", BOOTDIR, dkbasename); | |
628 | np += strlen(xxboot) + 1; | |
629 | } | |
630 | if (bootxx == NULL) { | |
631 | (void)sprintf(np, "%s/boot%s", BOOTDIR, dkbasename); | |
632 | if (access(np, F_OK) < 0 && dkbasename[0] == 'r') | |
633 | dkbasename++; | |
634 | bootxx = np; | |
635 | (void)sprintf(bootxx, "%s/boot%s", BOOTDIR, dkbasename); | |
636 | np += strlen(bootxx) + 1; | |
637 | } | |
638 | } | |
639 | #ifdef DEBUG | |
640 | if (debug) | |
641 | fprintf(stderr, "bootstraps: xxboot = %s, bootxx = %s\n", | |
642 | xxboot, bootxx); | |
643 | #endif | |
644 | ||
645 | b = open(xxboot, O_RDONLY); | |
646 | if (b < 0) | |
647 | Perror(xxboot); | |
648 | if (read(b, boot, (int)dp->d_secsize) < 0) | |
649 | Perror(xxboot); | |
650 | close(b); | |
651 | b = open(bootxx, O_RDONLY); | |
652 | if (b < 0) | |
653 | Perror(bootxx); | |
654 | if (read(b, &boot[dp->d_secsize], (int)(dp->d_bbsize-dp->d_secsize)) < 0) | |
655 | Perror(bootxx); | |
656 | (void)close(b); | |
657 | #endif /*BOOT*/ | |
658 | ||
659 | for (p = (char *)lp; p < (char *)lp + sizeof(struct disklabel); p++) | |
660 | if (*p) { | |
661 | fprintf(stderr, | |
662 | "Bootstrap doesn't leave room for disk label\n"); | |
663 | exit(2); | |
664 | } | |
665 | return (lp); | |
666 | } | |
667 | ||
668 | display(f, lp) | |
669 | FILE *f; | |
670 | register struct disklabel *lp; | |
671 | { | |
672 | register int i, j; | |
673 | register struct partition *pp; | |
674 | ||
675 | fprintf(f, "# %s:\n", specname); | |
676 | if ((unsigned) lp->d_type < DKMAXTYPES) | |
677 | fprintf(f, "type: %s\n", dktypenames[lp->d_type]); | |
678 | else | |
679 | fprintf(f, "type: %d\n", lp->d_type); | |
680 | fprintf(f, "disk: %.*s\n", sizeof(lp->d_typename), lp->d_typename); | |
681 | fprintf(f, "label: %.*s\n", sizeof(lp->d_packname), lp->d_packname); | |
682 | fprintf(f, "flags:"); | |
683 | if (lp->d_flags & D_REMOVABLE) | |
684 | fprintf(f, " removeable"); | |
685 | if (lp->d_flags & D_ECC) | |
686 | fprintf(f, " ecc"); | |
687 | if (lp->d_flags & D_BADSECT) | |
688 | fprintf(f, " badsect"); | |
689 | fprintf(f, "\n"); | |
690 | fprintf(f, "bytes/sector: %d\n", lp->d_secsize); | |
691 | fprintf(f, "sectors/track: %d\n", lp->d_nsectors); | |
692 | fprintf(f, "tracks/cylinder: %d\n", lp->d_ntracks); | |
693 | fprintf(f, "sectors/cylinder: %d\n", lp->d_secpercyl); | |
694 | fprintf(f, "cylinders: %d\n", lp->d_ncylinders); | |
695 | fprintf(f, "rpm: %d\n", lp->d_rpm); | |
696 | fprintf(f, "interleave: %d\n", lp->d_interleave); | |
697 | fprintf(f, "trackskew: %d\n", lp->d_trackskew); | |
698 | fprintf(f, "cylinderskew: %d\n", lp->d_cylskew); | |
699 | fprintf(f, "headswitch: %d\t\t# milliseconds\n", lp->d_headswitch); | |
700 | fprintf(f, "track-to-track seek: %d\t# milliseconds\n", lp->d_trkseek); | |
701 | fprintf(f, "drivedata: "); | |
702 | for (i = NDDATA - 1; i >= 0; i--) | |
703 | if (lp->d_drivedata[i]) | |
704 | break; | |
705 | if (i < 0) | |
706 | i = 0; | |
707 | for (j = 0; j <= i; j++) | |
708 | fprintf(f, "%d ", lp->d_drivedata[j]); | |
709 | fprintf(f, "\n\n%d partitions:\n", lp->d_npartitions); | |
710 | fprintf(f, | |
711 | "# size offset fstype [fsize bsize cpg]\n"); | |
712 | pp = lp->d_partitions; | |
713 | for (i = 0; i < lp->d_npartitions; i++, pp++) { | |
714 | if (pp->p_size) { | |
715 | fprintf(f, " %c: %8d %8d ", 'a' + i, | |
716 | pp->p_size, pp->p_offset); | |
717 | if ((unsigned) pp->p_fstype < FSMAXTYPES) | |
718 | fprintf(f, "%8.8s", fstypenames[pp->p_fstype]); | |
719 | else | |
720 | fprintf(f, "%8d", pp->p_fstype); | |
721 | switch (pp->p_fstype) { | |
722 | ||
723 | case FS_UNUSED: /* XXX */ | |
724 | fprintf(f, " %5d %5d %5.5s ", | |
725 | pp->p_fsize, pp->p_fsize * pp->p_frag, ""); | |
726 | break; | |
727 | ||
728 | case FS_BSDFFS: | |
729 | fprintf(f, " %5d %5d %5d ", | |
730 | pp->p_fsize, pp->p_fsize * pp->p_frag, | |
731 | pp->p_cpg); | |
732 | break; | |
733 | ||
734 | default: | |
735 | fprintf(f, "%20.20s", ""); | |
736 | break; | |
737 | } | |
738 | fprintf(f, "\t# (Cyl. %4d", | |
739 | pp->p_offset / lp->d_secpercyl); | |
740 | if (pp->p_offset % lp->d_secpercyl) | |
741 | putc('*', f); | |
742 | else | |
743 | putc(' ', f); | |
744 | fprintf(f, "- %d", | |
745 | (pp->p_offset + | |
746 | pp->p_size + lp->d_secpercyl - 1) / | |
747 | lp->d_secpercyl - 1); | |
748 | if (pp->p_size % lp->d_secpercyl) | |
749 | putc('*', f); | |
750 | fprintf(f, ")\n"); | |
751 | } | |
752 | } | |
753 | fflush(f); | |
754 | } | |
755 | ||
756 | edit(lp, f) | |
757 | struct disklabel *lp; | |
758 | int f; | |
759 | { | |
760 | register int c; | |
761 | struct disklabel label; | |
762 | FILE *fd; | |
763 | char *mktemp(); | |
764 | ||
765 | (void) mktemp(tmpfil); | |
766 | fd = fopen(tmpfil, "w"); | |
767 | if (fd == NULL) { | |
768 | fprintf(stderr, "%s: Can't create\n", tmpfil); | |
769 | return (1); | |
770 | } | |
771 | (void)fchmod(fd, 0600); | |
772 | display(fd, lp); | |
773 | fclose(fd); | |
774 | for (;;) { | |
775 | if (!editit()) | |
776 | break; | |
777 | fd = fopen(tmpfil, "r"); | |
778 | if (fd == NULL) { | |
779 | fprintf(stderr, "%s: Can't reopen for reading\n", | |
780 | tmpfil); | |
781 | break; | |
782 | } | |
783 | bzero((char *)&label, sizeof(label)); | |
784 | if (getasciilabel(fd, &label)) { | |
785 | *lp = label; | |
786 | if (writelabel(f, bootarea, lp) == 0) { | |
787 | (void) unlink(tmpfil); | |
788 | return (0); | |
789 | } | |
790 | } | |
791 | printf("re-edit the label? [y]: "); fflush(stdout); | |
792 | c = getchar(); | |
793 | if (c != EOF && c != (int)'\n') | |
794 | while (getchar() != (int)'\n') | |
795 | ; | |
796 | if (c == (int)'n') | |
797 | break; | |
798 | } | |
799 | (void) unlink(tmpfil); | |
800 | return (1); | |
801 | } | |
802 | ||
803 | editit() | |
804 | { | |
805 | register int pid, xpid; | |
806 | int stat, omask; | |
807 | extern char *getenv(); | |
808 | ||
809 | omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); | |
810 | while ((pid = fork()) < 0) { | |
811 | extern int errno; | |
812 | ||
813 | if (errno == EPROCLIM) { | |
814 | fprintf(stderr, "You have too many processes\n"); | |
815 | return(0); | |
816 | } | |
817 | if (errno != EAGAIN) { | |
818 | perror("fork"); | |
819 | return(0); | |
820 | } | |
821 | sleep(1); | |
822 | } | |
823 | if (pid == 0) { | |
824 | register char *ed; | |
825 | ||
826 | sigsetmask(omask); | |
827 | setgid(getgid()); | |
828 | setuid(getuid()); | |
829 | if ((ed = getenv("EDITOR")) == (char *)0) | |
830 | ed = DEFEDITOR; | |
831 | execlp(ed, ed, tmpfil, 0); | |
832 | perror(ed); | |
833 | exit(1); | |
834 | } | |
835 | while ((xpid = wait(&stat)) >= 0) | |
836 | if (xpid == pid) | |
837 | break; | |
838 | sigsetmask(omask); | |
839 | return(!stat); | |
840 | } | |
841 | ||
842 | char * | |
843 | skip(cp) | |
844 | register char *cp; | |
845 | { | |
846 | ||
847 | while (*cp != '\0' && isspace(*cp)) | |
848 | cp++; | |
849 | if (*cp == '\0' || *cp == '#') | |
850 | return ((char *)NULL); | |
851 | return (cp); | |
852 | } | |
853 | ||
854 | char * | |
855 | word(cp) | |
856 | register char *cp; | |
857 | { | |
858 | register char c; | |
859 | ||
860 | while (*cp != '\0' && !isspace(*cp) && *cp != '#') | |
861 | cp++; | |
862 | if ((c = *cp) != '\0') { | |
863 | *cp++ = '\0'; | |
864 | if (c != '#') | |
865 | return (skip(cp)); | |
866 | } | |
867 | return ((char *)NULL); | |
868 | } | |
869 | ||
870 | /* | |
871 | * Read an ascii label in from fd f, | |
872 | * in the same format as that put out by display(), | |
873 | * and fill in lp. | |
874 | */ | |
875 | getasciilabel(f, lp) | |
876 | FILE *f; | |
877 | register struct disklabel *lp; | |
878 | { | |
879 | register char **cpp, *cp; | |
880 | register struct partition *pp; | |
881 | char *tp, *s, line[BUFSIZ]; | |
882 | int v, lineno = 0, errors = 0; | |
883 | ||
884 | lp->d_bbsize = BBSIZE; /* XXX */ | |
885 | lp->d_sbsize = SBSIZE; /* XXX */ | |
886 | while (fgets(line, sizeof(line) - 1, f)) { | |
887 | lineno++; | |
888 | if (cp = index(line,'\n')) | |
889 | *cp = '\0'; | |
890 | cp = skip(line); | |
891 | if (cp == NULL) | |
892 | continue; | |
893 | tp = index(cp, ':'); | |
894 | if (tp == NULL) { | |
895 | fprintf(stderr, "line %d: syntax error\n", lineno); | |
896 | errors++; | |
897 | continue; | |
898 | } | |
899 | *tp++ = '\0', tp = skip(tp); | |
900 | if (streq(cp, "type")) { | |
901 | if (tp == NULL) | |
902 | tp = "unknown"; | |
903 | cpp = dktypenames; | |
904 | for (; cpp < &dktypenames[DKMAXTYPES]; cpp++) | |
905 | if ((s = *cpp) && streq(s, tp)) { | |
906 | lp->d_type = cpp - dktypenames; | |
907 | goto next; | |
908 | } | |
909 | v = atoi(tp); | |
910 | if ((unsigned)v >= DKMAXTYPES) | |
911 | fprintf(stderr, "line %d:%s %d\n", lineno, | |
912 | "Warning, unknown disk type", v); | |
913 | lp->d_type = v; | |
914 | continue; | |
915 | } | |
916 | if (streq(cp, "flags")) { | |
917 | for (v = 0; (cp = tp) && *cp != '\0';) { | |
918 | tp = word(cp); | |
919 | if (streq(cp, "removeable")) | |
920 | v |= D_REMOVABLE; | |
921 | else if (streq(cp, "ecc")) | |
922 | v |= D_ECC; | |
923 | else if (streq(cp, "badsect")) | |
924 | v |= D_BADSECT; | |
925 | else { | |
926 | fprintf(stderr, | |
927 | "line %d: %s: bad flag\n", | |
928 | lineno, cp); | |
929 | errors++; | |
930 | } | |
931 | } | |
932 | lp->d_flags = v; | |
933 | continue; | |
934 | } | |
935 | if (streq(cp, "drivedata")) { | |
936 | register int i; | |
937 | ||
938 | for (i = 0; (cp = tp) && *cp != '\0' && i < NDDATA;) { | |
939 | lp->d_drivedata[i++] = atoi(cp); | |
940 | tp = word(cp); | |
941 | } | |
942 | continue; | |
943 | } | |
944 | if (sscanf(cp, "%d partitions", &v) == 1) { | |
945 | if (v == 0 || (unsigned)v > MAXPARTITIONS) { | |
946 | fprintf(stderr, | |
947 | "line %d: bad # of partitions\n", lineno); | |
948 | lp->d_npartitions = MAXPARTITIONS; | |
949 | errors++; | |
950 | } else | |
951 | lp->d_npartitions = v; | |
952 | continue; | |
953 | } | |
954 | if (tp == NULL) | |
955 | tp = ""; | |
956 | if (streq(cp, "disk")) { | |
957 | strncpy(lp->d_typename, tp, sizeof (lp->d_typename)); | |
958 | continue; | |
959 | } | |
960 | if (streq(cp, "label")) { | |
961 | strncpy(lp->d_packname, tp, sizeof (lp->d_packname)); | |
962 | continue; | |
963 | } | |
964 | if (streq(cp, "bytes/sector")) { | |
965 | v = atoi(tp); | |
966 | if (v <= 0 || (v % 512) != 0) { | |
967 | fprintf(stderr, | |
968 | "line %d: %s: bad sector size\n", | |
969 | lineno, tp); | |
970 | errors++; | |
971 | } else | |
972 | lp->d_secsize = v; | |
973 | continue; | |
974 | } | |
975 | if (streq(cp, "sectors/track")) { | |
976 | v = atoi(tp); | |
977 | if (v <= 0) { | |
978 | fprintf(stderr, "line %d: %s: bad %s\n", | |
979 | lineno, tp, cp); | |
980 | errors++; | |
981 | } else | |
982 | lp->d_nsectors = v; | |
983 | continue; | |
984 | } | |
985 | if (streq(cp, "sectors/cylinder")) { | |
986 | v = atoi(tp); | |
987 | if (v <= 0) { | |
988 | fprintf(stderr, "line %d: %s: bad %s\n", | |
989 | lineno, tp, cp); | |
990 | errors++; | |
991 | } else | |
992 | lp->d_secpercyl = v; | |
993 | continue; | |
994 | } | |
995 | if (streq(cp, "tracks/cylinder")) { | |
996 | v = atoi(tp); | |
997 | if (v <= 0) { | |
998 | fprintf(stderr, "line %d: %s: bad %s\n", | |
999 | lineno, tp, cp); | |
1000 | errors++; | |
1001 | } else | |
1002 | lp->d_ntracks = v; | |
1003 | continue; | |
1004 | } | |
1005 | if (streq(cp, "cylinders")) { | |
1006 | v = atoi(tp); | |
1007 | if (v <= 0) { | |
1008 | fprintf(stderr, "line %d: %s: bad %s\n", | |
1009 | lineno, tp, cp); | |
1010 | errors++; | |
1011 | } else | |
1012 | lp->d_ncylinders = v; | |
1013 | continue; | |
1014 | } | |
1015 | if (streq(cp, "rpm")) { | |
1016 | v = atoi(tp); | |
1017 | if (v <= 0) { | |
1018 | fprintf(stderr, "line %d: %s: bad %s\n", | |
1019 | lineno, tp, cp); | |
1020 | errors++; | |
1021 | } else | |
1022 | lp->d_rpm = v; | |
1023 | continue; | |
1024 | } | |
1025 | if (streq(cp, "interleave")) { | |
1026 | v = atoi(tp); | |
1027 | if (v <= 0) { | |
1028 | fprintf(stderr, "line %d: %s: bad %s\n", | |
1029 | lineno, tp, cp); | |
1030 | errors++; | |
1031 | } else | |
1032 | lp->d_interleave = v; | |
1033 | continue; | |
1034 | } | |
1035 | if (streq(cp, "trackskew")) { | |
1036 | v = atoi(tp); | |
1037 | if (v < 0) { | |
1038 | fprintf(stderr, "line %d: %s: bad %s\n", | |
1039 | lineno, tp, cp); | |
1040 | errors++; | |
1041 | } else | |
1042 | lp->d_trackskew = v; | |
1043 | continue; | |
1044 | } | |
1045 | if (streq(cp, "cylinderskew")) { | |
1046 | v = atoi(tp); | |
1047 | if (v < 0) { | |
1048 | fprintf(stderr, "line %d: %s: bad %s\n", | |
1049 | lineno, tp, cp); | |
1050 | errors++; | |
1051 | } else | |
1052 | lp->d_cylskew = v; | |
1053 | continue; | |
1054 | } | |
1055 | if (streq(cp, "headswitch")) { | |
1056 | v = atoi(tp); | |
1057 | if (v < 0) { | |
1058 | fprintf(stderr, "line %d: %s: bad %s\n", | |
1059 | lineno, tp, cp); | |
1060 | errors++; | |
1061 | } else | |
1062 | lp->d_headswitch = v; | |
1063 | continue; | |
1064 | } | |
1065 | if (streq(cp, "track-to-track seek")) { | |
1066 | v = atoi(tp); | |
1067 | if (v < 0) { | |
1068 | fprintf(stderr, "line %d: %s: bad %s\n", | |
1069 | lineno, tp, cp); | |
1070 | errors++; | |
1071 | } else | |
1072 | lp->d_trkseek = v; | |
1073 | continue; | |
1074 | } | |
1075 | if ('a' <= *cp && *cp <= 'z' && cp[1] == '\0') { | |
1076 | unsigned part = *cp - 'a'; | |
1077 | ||
1078 | if (part > lp->d_npartitions) { | |
1079 | fprintf(stderr, | |
1080 | "line %d: bad partition name\n", lineno); | |
1081 | errors++; | |
1082 | continue; | |
1083 | } | |
1084 | pp = &lp->d_partitions[part]; | |
1085 | #define NXTNUM(n) { \ | |
1086 | cp = tp, tp = word(cp); \ | |
1087 | if (tp == NULL) \ | |
1088 | tp = cp; \ | |
1089 | (n) = atoi(cp); \ | |
1090 | } | |
1091 | ||
1092 | NXTNUM(v); | |
1093 | if (v < 0) { | |
1094 | fprintf(stderr, | |
1095 | "line %d: %s: bad partition size\n", | |
1096 | lineno, cp); | |
1097 | errors++; | |
1098 | } else | |
1099 | pp->p_size = v; | |
1100 | NXTNUM(v); | |
1101 | if (v < 0) { | |
1102 | fprintf(stderr, | |
1103 | "line %d: %s: bad partition offset\n", | |
1104 | lineno, cp); | |
1105 | errors++; | |
1106 | } else | |
1107 | pp->p_offset = v; | |
1108 | cp = tp, tp = word(cp); | |
1109 | cpp = fstypenames; | |
1110 | for (; cpp < &fstypenames[FSMAXTYPES]; cpp++) | |
1111 | if ((s = *cpp) && streq(s, cp)) { | |
1112 | pp->p_fstype = cpp - fstypenames; | |
1113 | goto gottype; | |
1114 | } | |
1115 | if (isdigit(*cp)) | |
1116 | v = atoi(cp); | |
1117 | else | |
1118 | v = FSMAXTYPES; | |
1119 | if ((unsigned)v >= FSMAXTYPES) { | |
1120 | fprintf(stderr, "line %d: %s %s\n", lineno, | |
1121 | "Warning, unknown filesystem type", cp); | |
1122 | v = FS_UNUSED; | |
1123 | } | |
1124 | pp->p_fstype = v; | |
1125 | gottype: | |
1126 | ||
1127 | switch (pp->p_fstype) { | |
1128 | ||
1129 | case FS_UNUSED: /* XXX */ | |
1130 | NXTNUM(pp->p_fsize); | |
1131 | if (pp->p_fsize == 0) | |
1132 | break; | |
1133 | NXTNUM(v); | |
1134 | pp->p_frag = v / pp->p_fsize; | |
1135 | break; | |
1136 | ||
1137 | case FS_BSDFFS: | |
1138 | NXTNUM(pp->p_fsize); | |
1139 | if (pp->p_fsize == 0) | |
1140 | break; | |
1141 | NXTNUM(v); | |
1142 | pp->p_frag = v / pp->p_fsize; | |
1143 | NXTNUM(pp->p_cpg); | |
1144 | break; | |
1145 | ||
1146 | default: | |
1147 | break; | |
1148 | } | |
1149 | continue; | |
1150 | } | |
1151 | fprintf(stderr, "line %d: %s: Unknown disklabel field\n", | |
1152 | lineno, cp); | |
1153 | errors++; | |
1154 | next: | |
1155 | ; | |
1156 | } | |
1157 | errors += checklabel(lp); | |
1158 | return (errors == 0); | |
1159 | } | |
1160 | ||
1161 | /* | |
1162 | * Check disklabel for errors and fill in | |
1163 | * derived fields according to supplied values. | |
1164 | */ | |
1165 | checklabel(lp) | |
1166 | register struct disklabel *lp; | |
1167 | { | |
1168 | register struct partition *pp; | |
1169 | int i, errors = 0; | |
1170 | char part; | |
1171 | ||
1172 | if (lp->d_secsize == 0) { | |
1173 | fprintf(stderr, "sector size %d\n", lp->d_secsize); | |
1174 | return (1); | |
1175 | } | |
1176 | if (lp->d_nsectors == 0) { | |
1177 | fprintf(stderr, "sectors/track %d\n", lp->d_nsectors); | |
1178 | return (1); | |
1179 | } | |
1180 | if (lp->d_ntracks == 0) { | |
1181 | fprintf(stderr, "tracks/cylinder %d\n", lp->d_ntracks); | |
1182 | return (1); | |
1183 | } | |
1184 | if (lp->d_ncylinders == 0) { | |
1185 | fprintf(stderr, "cylinders/unit %d\n", lp->d_ncylinders); | |
1186 | errors++; | |
1187 | } | |
1188 | if (lp->d_rpm == 0) | |
1189 | Warning("revolutions/minute %d\n", lp->d_rpm); | |
1190 | if (lp->d_secpercyl == 0) | |
1191 | lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; | |
1192 | if (lp->d_secperunit == 0) | |
1193 | lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; | |
1194 | #ifdef __386BSD__notyet | |
1195 | if (dosdp && dosdp->dp_size && dosdp->dp_typ == DOSPTYP_386BSD | |
1196 | && lp->d_secperunit > dosdp->dp_start + dosdp->dp_size) { | |
1197 | fprintf(stderr, "exceeds DOS partition size\n"); | |
1198 | errors++; | |
1199 | lp->d_secperunit = dosdp->dp_start + dosdp->dp_size; | |
1200 | } | |
1201 | /* XXX should also check geometry against BIOS's idea */ | |
1202 | #endif | |
1203 | if (lp->d_bbsize == 0) { | |
1204 | fprintf(stderr, "boot block size %d\n", lp->d_bbsize); | |
1205 | errors++; | |
1206 | } else if (lp->d_bbsize % lp->d_secsize) | |
1207 | Warning("boot block size %% sector-size != 0\n"); | |
1208 | if (lp->d_sbsize == 0) { | |
1209 | fprintf(stderr, "super block size %d\n", lp->d_sbsize); | |
1210 | errors++; | |
1211 | } else if (lp->d_sbsize % lp->d_secsize) | |
1212 | Warning("super block size %% sector-size != 0\n"); | |
1213 | if (lp->d_npartitions > MAXPARTITIONS) | |
1214 | Warning("number of partitions (%d) > MAXPARTITIONS (%d)\n", | |
1215 | lp->d_npartitions, MAXPARTITIONS); | |
1216 | for (i = 0; i < lp->d_npartitions; i++) { | |
1217 | part = 'a' + i; | |
1218 | pp = &lp->d_partitions[i]; | |
1219 | if (pp->p_size == 0 && pp->p_offset != 0) | |
1220 | Warning("partition %c: size 0, but offset %d\n", | |
1221 | part, pp->p_offset); | |
1222 | #ifdef notdef | |
1223 | if (pp->p_size % lp->d_secpercyl) | |
1224 | Warning("partition %c: size %% cylinder-size != 0\n", | |
1225 | part); | |
1226 | if (pp->p_offset % lp->d_secpercyl) | |
1227 | Warning("partition %c: offset %% cylinder-size != 0\n", | |
1228 | part); | |
1229 | #endif | |
1230 | if (pp->p_offset > lp->d_secperunit) { | |
1231 | fprintf(stderr, | |
1232 | "partition %c: offset past end of unit\n", part); | |
1233 | errors++; | |
1234 | } | |
1235 | if (pp->p_offset + pp->p_size > lp->d_secperunit) { | |
1236 | fprintf(stderr, | |
1237 | "partition %c: partition extends past end of unit\n", | |
1238 | part); | |
1239 | errors++; | |
1240 | } | |
1241 | } | |
1242 | for (; i < MAXPARTITIONS; i++) { | |
1243 | part = 'a' + i; | |
1244 | pp = &lp->d_partitions[i]; | |
1245 | if (pp->p_size || pp->p_offset) | |
1246 | Warning("unused partition %c: size %d offset %d\n", | |
1247 | 'a' + i, pp->p_size, pp->p_offset); | |
1248 | } | |
1249 | return (errors); | |
1250 | } | |
1251 | ||
1252 | /*VARARGS1*/ | |
1253 | Warning(fmt, a1, a2, a3, a4, a5) | |
1254 | char *fmt; | |
1255 | { | |
1256 | ||
1257 | fprintf(stderr, "Warning, "); | |
1258 | fprintf(stderr, fmt, a1, a2, a3, a4, a5); | |
1259 | fprintf(stderr, "\n"); | |
1260 | } | |
1261 | ||
1262 | Perror(str) | |
1263 | char *str; | |
1264 | { | |
1265 | fputs("disklabel: ", stderr); perror(str); | |
1266 | exit(4); | |
1267 | } | |
1268 | ||
1269 | usage() | |
1270 | { | |
1271 | #ifdef BOOT | |
1272 | fprintf(stderr, "%-62s%s\n%-62s%s\n%-62s%s\n%-62s%s\n%-62s%s\n", | |
1273 | "usage: disklabel [-r] disk", "(to read label)", | |
1274 | "or disklabel -w [-r] disk type [ packid ] [ xxboot bootxx ]", "(to write label)", | |
1275 | "or disklabel -e [-r] disk", "(to edit label)", | |
1276 | "or disklabel -R [-r] disk protofile [ type | xxboot bootxx ]", "(to restore label)", | |
1277 | "or disklabel [-NW] disk", "(to write disable/enable label)"); | |
1278 | #else | |
1279 | fprintf(stderr, "%-43s%s\n%-43s%s\n%-43s%s\n%-43s%s\n%-43s%s\n", | |
1280 | "usage: disklabel [-r] disk", "(to read label)", | |
1281 | "or disklabel -w [-r] disk type [ packid ]", "(to write label)", | |
1282 | "or disklabel -e [-r] disk", "(to edit label)", | |
1283 | "or disklabel -R [-r] disk protofile", "(to restore label)", | |
1284 | "or disklabel [-NW] disk", "(to write disable/enable label)"); | |
1285 | #endif | |
1286 | exit(1); | |
1287 | } |