blob: 89f1f323c79886509d8f7648b524a6c17e83d30b
1 | /* |
2 | * Copyright (c) 1987, 1988 Regents of the University of California. |
3 | * All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * 1. Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
13 | * 3. All advertising materials mentioning features or use of this software |
14 | * must display the following acknowledgment: |
15 | * This product includes software developed by the University of |
16 | * California, Berkeley and its contributors. |
17 | * 4. Neither the name of the University nor the names of its contributors |
18 | * may be used to endorse or promote products derived from this software |
19 | * without specific prior written permission. |
20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
31 | * SUCH DAMAGE. |
32 | */ |
33 | |
34 | #if ENABLE_FEATURE_OSF_LABEL |
35 | |
36 | #ifndef BSD_DISKMAGIC |
37 | #define BSD_DISKMAGIC ((uint32_t) 0x82564557) |
38 | #endif |
39 | |
40 | #ifndef BSD_MAXPARTITIONS |
41 | #define BSD_MAXPARTITIONS 16 |
42 | #endif |
43 | |
44 | #define BSD_LINUX_BOOTDIR "/usr/ucb/mdec" |
45 | |
46 | #if defined(__alpha__) \ |
47 | || defined(__powerpc__) \ |
48 | || defined(__ia64__) \ |
49 | || defined(__hppa__) |
50 | # define BSD_LABELSECTOR 0 |
51 | # define BSD_LABELOFFSET 64 |
52 | #else |
53 | # define BSD_LABELSECTOR 1 |
54 | # define BSD_LABELOFFSET 0 |
55 | #endif |
56 | |
57 | #define BSD_BBSIZE 8192 /* size of boot area, with label */ |
58 | #define BSD_SBSIZE 8192 /* max size of fs superblock */ |
59 | |
60 | struct xbsd_disklabel { |
61 | uint32_t d_magic; /* the magic number */ |
62 | int16_t d_type; /* drive type */ |
63 | int16_t d_subtype; /* controller/d_type specific */ |
64 | char d_typename[16]; /* type name, e.g. "eagle" */ |
65 | char d_packname[16]; /* pack identifier */ |
66 | /* disk geometry: */ |
67 | uint32_t d_secsize; /* # of bytes per sector */ |
68 | uint32_t d_nsectors; /* # of data sectors per track */ |
69 | uint32_t d_ntracks; /* # of tracks per cylinder */ |
70 | uint32_t d_ncylinders; /* # of data cylinders per unit */ |
71 | uint32_t d_secpercyl; /* # of data sectors per cylinder */ |
72 | uint32_t d_secperunit; /* # of data sectors per unit */ |
73 | /* |
74 | * Spares (bad sector replacements) below |
75 | * are not counted in d_nsectors or d_secpercyl. |
76 | * Spare sectors are assumed to be physical sectors |
77 | * which occupy space at the end of each track and/or cylinder. |
78 | */ |
79 | uint16_t d_sparespertrack; /* # of spare sectors per track */ |
80 | uint16_t d_sparespercyl; /* # of spare sectors per cylinder */ |
81 | /* |
82 | * Alternate cylinders include maintenance, replacement, |
83 | * configuration description areas, etc. |
84 | */ |
85 | uint32_t d_acylinders; /* # of alt. cylinders per unit */ |
86 | |
87 | /* hardware characteristics: */ |
88 | /* |
89 | * d_interleave, d_trackskew and d_cylskew describe perturbations |
90 | * in the media format used to compensate for a slow controller. |
91 | * Interleave is physical sector interleave, set up by the formatter |
92 | * or controller when formatting. When interleaving is in use, |
93 | * logically adjacent sectors are not physically contiguous, |
94 | * but instead are separated by some number of sectors. |
95 | * It is specified as the ratio of physical sectors traversed |
96 | * per logical sector. Thus an interleave of 1:1 implies contiguous |
97 | * layout, while 2:1 implies that logical sector 0 is separated |
98 | * by one sector from logical sector 1. |
99 | * d_trackskew is the offset of sector 0 on track N |
100 | * relative to sector 0 on track N-1 on the same cylinder. |
101 | * Finally, d_cylskew is the offset of sector 0 on cylinder N |
102 | * relative to sector 0 on cylinder N-1. |
103 | */ |
104 | uint16_t d_rpm; /* rotational speed */ |
105 | uint16_t d_interleave; /* hardware sector interleave */ |
106 | uint16_t d_trackskew; /* sector 0 skew, per track */ |
107 | uint16_t d_cylskew; /* sector 0 skew, per cylinder */ |
108 | uint32_t d_headswitch; /* head switch time, usec */ |
109 | uint32_t d_trkseek; /* track-to-track seek, usec */ |
110 | uint32_t d_flags; /* generic flags */ |
111 | #define NDDATA 5 |
112 | uint32_t d_drivedata[NDDATA]; /* drive-type specific information */ |
113 | #define NSPARE 5 |
114 | uint32_t d_spare[NSPARE]; /* reserved for future use */ |
115 | uint32_t d_magic2; /* the magic number (again) */ |
116 | uint16_t d_checksum; /* xor of data incl. partitions */ |
117 | /* filesystem and partition information: */ |
118 | uint16_t d_npartitions; /* number of partitions in following */ |
119 | uint32_t d_bbsize; /* size of boot area at sn0, bytes */ |
120 | uint32_t d_sbsize; /* max size of fs superblock, bytes */ |
121 | struct xbsd_partition { /* the partition table */ |
122 | uint32_t p_size; /* number of sectors in partition */ |
123 | uint32_t p_offset; /* starting sector */ |
124 | uint32_t p_fsize; /* filesystem basic fragment size */ |
125 | uint8_t p_fstype; /* filesystem type, see below */ |
126 | uint8_t p_frag; /* filesystem fragments per block */ |
127 | uint16_t p_cpg; /* filesystem cylinders per group */ |
128 | } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */ |
129 | }; |
130 | |
131 | /* d_type values: */ |
132 | #define BSD_DTYPE_SMD 1 /* SMD, XSMD; VAX hp/up */ |
133 | #define BSD_DTYPE_MSCP 2 /* MSCP */ |
134 | #define BSD_DTYPE_DEC 3 /* other DEC (rk, rl) */ |
135 | #define BSD_DTYPE_SCSI 4 /* SCSI */ |
136 | #define BSD_DTYPE_ESDI 5 /* ESDI interface */ |
137 | #define BSD_DTYPE_ST506 6 /* ST506 etc. */ |
138 | #define BSD_DTYPE_HPIB 7 /* CS/80 on HP-IB */ |
139 | #define BSD_DTYPE_HPFL 8 /* HP Fiber-link */ |
140 | #define BSD_DTYPE_FLOPPY 10 /* floppy */ |
141 | |
142 | /* d_subtype values: */ |
143 | #define BSD_DSTYPE_INDOSPART 0x8 /* is inside dos partition */ |
144 | #define BSD_DSTYPE_DOSPART(s) ((s) & 3) /* dos partition number */ |
145 | #define BSD_DSTYPE_GEOMETRY 0x10 /* drive params in label */ |
146 | |
147 | static const char *const xbsd_dktypenames[] = { |
148 | "unknown", |
149 | "SMD", |
150 | "MSCP", |
151 | "old DEC", |
152 | "SCSI", |
153 | "ESDI", |
154 | "ST506", |
155 | "HP-IB", |
156 | "HP-FL", |
157 | "type 9", |
158 | "floppy", |
159 | 0 |
160 | }; |
161 | |
162 | |
163 | /* |
164 | * Filesystem type and version. |
165 | * Used to interpret other filesystem-specific |
166 | * per-partition information. |
167 | */ |
168 | #define BSD_FS_UNUSED 0 /* unused */ |
169 | #define BSD_FS_SWAP 1 /* swap */ |
170 | #define BSD_FS_V6 2 /* Sixth Edition */ |
171 | #define BSD_FS_V7 3 /* Seventh Edition */ |
172 | #define BSD_FS_SYSV 4 /* System V */ |
173 | #define BSD_FS_V71K 5 /* V7 with 1K blocks (4.1, 2.9) */ |
174 | #define BSD_FS_V8 6 /* Eighth Edition, 4K blocks */ |
175 | #define BSD_FS_BSDFFS 7 /* 4.2BSD fast file system */ |
176 | #define BSD_FS_BSDLFS 9 /* 4.4BSD log-structured file system */ |
177 | #define BSD_FS_OTHER 10 /* in use, but unknown/unsupported */ |
178 | #define BSD_FS_HPFS 11 /* OS/2 high-performance file system */ |
179 | #define BSD_FS_ISO9660 12 /* ISO-9660 filesystem (cdrom) */ |
180 | #define BSD_FS_ISOFS BSD_FS_ISO9660 |
181 | #define BSD_FS_BOOT 13 /* partition contains bootstrap */ |
182 | #define BSD_FS_ADOS 14 /* AmigaDOS fast file system */ |
183 | #define BSD_FS_HFS 15 /* Macintosh HFS */ |
184 | #define BSD_FS_ADVFS 16 /* Digital Unix AdvFS */ |
185 | |
186 | /* this is annoying, but it's also the way it is :-( */ |
187 | #ifdef __alpha__ |
188 | #define BSD_FS_EXT2 8 /* ext2 file system */ |
189 | #else |
190 | #define BSD_FS_MSDOS 8 /* MS-DOS file system */ |
191 | #endif |
192 | |
193 | static const char *const xbsd_fstypes[] = { |
194 | "\x00" "unused", /* BSD_FS_UNUSED */ |
195 | "\x01" "swap", /* BSD_FS_SWAP */ |
196 | "\x02" "Version 6", /* BSD_FS_V6 */ |
197 | "\x03" "Version 7", /* BSD_FS_V7 */ |
198 | "\x04" "System V", /* BSD_FS_SYSV */ |
199 | "\x05" "4.1BSD", /* BSD_FS_V71K */ |
200 | "\x06" "Eighth Edition", /* BSD_FS_V8 */ |
201 | "\x07" "4.2BSD", /* BSD_FS_BSDFFS */ |
202 | #ifdef __alpha__ |
203 | "\x08" "ext2", /* BSD_FS_EXT2 */ |
204 | #else |
205 | "\x08" "MS-DOS", /* BSD_FS_MSDOS */ |
206 | #endif |
207 | "\x09" "4.4LFS", /* BSD_FS_BSDLFS */ |
208 | "\x0a" "unknown", /* BSD_FS_OTHER */ |
209 | "\x0b" "HPFS", /* BSD_FS_HPFS */ |
210 | "\x0c" "ISO-9660", /* BSD_FS_ISO9660 */ |
211 | "\x0d" "boot", /* BSD_FS_BOOT */ |
212 | "\x0e" "ADOS", /* BSD_FS_ADOS */ |
213 | "\x0f" "HFS", /* BSD_FS_HFS */ |
214 | "\x10" "AdvFS", /* BSD_FS_ADVFS */ |
215 | NULL |
216 | }; |
217 | |
218 | |
219 | /* |
220 | * flags shared by various drives: |
221 | */ |
222 | #define BSD_D_REMOVABLE 0x01 /* removable media */ |
223 | #define BSD_D_ECC 0x02 /* supports ECC */ |
224 | #define BSD_D_BADSECT 0x04 /* supports bad sector forw. */ |
225 | #define BSD_D_RAMDISK 0x08 /* disk emulator */ |
226 | #define BSD_D_CHAIN 0x10 /* can do back-back transfers */ |
227 | #define BSD_D_DOSPART 0x20 /* within MSDOS partition */ |
228 | |
229 | /* |
230 | Changes: |
231 | 19990319 - Arnaldo Carvalho de Melo <acme@conectiva.com.br> - i18n/nls |
232 | |
233 | 20000101 - David Huggins-Daines <dhuggins@linuxcare.com> - Better |
234 | support for OSF/1 disklabels on Alpha. |
235 | Also fixed unaligned accesses in alpha_bootblock_checksum() |
236 | */ |
237 | |
238 | #define FREEBSD_PARTITION 0xa5 |
239 | #define NETBSD_PARTITION 0xa9 |
240 | |
241 | static void xbsd_delete_part(void); |
242 | static void xbsd_new_part(void); |
243 | static void xbsd_write_disklabel(void); |
244 | static int xbsd_create_disklabel(void); |
245 | static void xbsd_edit_disklabel(void); |
246 | static void xbsd_write_bootstrap(void); |
247 | static void xbsd_change_fstype(void); |
248 | static int xbsd_get_part_index(int max); |
249 | static int xbsd_check_new_partition(int *i); |
250 | static void xbsd_list_types(void); |
251 | static uint16_t xbsd_dkcksum(struct xbsd_disklabel *lp); |
252 | static int xbsd_initlabel(struct partition *p); |
253 | static int xbsd_readlabel(struct partition *p); |
254 | static int xbsd_writelabel(struct partition *p); |
255 | |
256 | #if defined(__alpha__) |
257 | static void alpha_bootblock_checksum(char *boot); |
258 | #endif |
259 | |
260 | #if !defined(__alpha__) |
261 | static int xbsd_translate_fstype(int linux_type); |
262 | static void xbsd_link_part(void); |
263 | static struct partition *xbsd_part; |
264 | static int xbsd_part_index; |
265 | #endif |
266 | |
267 | |
268 | /* Group big globals data and allocate it in one go */ |
269 | struct bsd_globals { |
270 | /* We access this through a uint64_t * when checksumming */ |
271 | /* hopefully xmalloc gives us required alignment */ |
272 | char disklabelbuffer[BSD_BBSIZE]; |
273 | struct xbsd_disklabel xbsd_dlabel; |
274 | }; |
275 | |
276 | static struct bsd_globals *bsd_globals_ptr; |
277 | |
278 | #define disklabelbuffer (bsd_globals_ptr->disklabelbuffer) |
279 | #define xbsd_dlabel (bsd_globals_ptr->xbsd_dlabel) |
280 | |
281 | |
282 | /* Code */ |
283 | |
284 | #define bsd_cround(n) \ |
285 | (display_in_cyl_units ? ((n)/xbsd_dlabel.d_secpercyl) + 1 : (n)) |
286 | |
287 | /* |
288 | * Test whether the whole disk has BSD disk label magic. |
289 | * |
290 | * Note: often reformatting with DOS-type label leaves the BSD magic, |
291 | * so this does not mean that there is a BSD disk label. |
292 | */ |
293 | static int |
294 | check_osf_label(void) |
295 | { |
296 | if (xbsd_readlabel(NULL) == 0) |
297 | return 0; |
298 | return 1; |
299 | } |
300 | |
301 | static int |
302 | bsd_trydev(const char * dev) |
303 | { |
304 | if (xbsd_readlabel(NULL) == 0) |
305 | return -1; |
306 | printf("\nBSD label for device: %s\n", dev); |
307 | xbsd_print_disklabel(0); |
308 | return 0; |
309 | } |
310 | |
311 | static void |
312 | bsd_menu(void) |
313 | { |
314 | puts("Command Action"); |
315 | puts("d\tdelete a BSD partition"); |
316 | puts("e\tedit drive data"); |
317 | puts("i\tinstall bootstrap"); |
318 | puts("l\tlist known filesystem types"); |
319 | puts("n\tadd a new BSD partition"); |
320 | puts("p\tprint BSD partition table"); |
321 | puts("q\tquit without saving changes"); |
322 | puts("r\treturn to main menu"); |
323 | puts("s\tshow complete disklabel"); |
324 | puts("t\tchange a partition's filesystem id"); |
325 | puts("u\tchange units (cylinders/sectors)"); |
326 | puts("w\twrite disklabel to disk"); |
327 | #if !defined(__alpha__) |
328 | puts("x\tlink BSD partition to non-BSD partition"); |
329 | #endif |
330 | } |
331 | |
332 | #if !defined(__alpha__) |
333 | static int |
334 | hidden(int type) |
335 | { |
336 | return type ^ 0x10; |
337 | } |
338 | |
339 | static int |
340 | is_bsd_partition_type(int type) |
341 | { |
342 | return (type == FREEBSD_PARTITION || |
343 | type == hidden(FREEBSD_PARTITION) || |
344 | type == NETBSD_PARTITION || |
345 | type == hidden(NETBSD_PARTITION)); |
346 | } |
347 | #endif |
348 | |
349 | static void |
350 | bsd_select(void) |
351 | { |
352 | #if !defined(__alpha__) |
353 | int t, ss; |
354 | struct partition *p; |
355 | |
356 | for (t = 0; t < 4; t++) { |
357 | p = get_part_table(t); |
358 | if (p && is_bsd_partition_type(p->sys_ind)) { |
359 | xbsd_part = p; |
360 | xbsd_part_index = t; |
361 | ss = get_start_sect(xbsd_part); |
362 | if (ss == 0) { |
363 | printf("Partition %s has invalid starting sector 0\n", |
364 | partname(disk_device, t+1, 0)); |
365 | return; |
366 | } |
367 | printf("Reading disklabel of %s at sector %u\n", |
368 | partname(disk_device, t+1, 0), ss + BSD_LABELSECTOR); |
369 | if (xbsd_readlabel(xbsd_part) == 0) { |
370 | if (xbsd_create_disklabel() == 0) |
371 | return; |
372 | break; |
373 | } |
374 | } |
375 | } |
376 | |
377 | if (t == 4) { |
378 | printf("There is no *BSD partition on %s\n", disk_device); |
379 | return; |
380 | } |
381 | |
382 | #elif defined(__alpha__) |
383 | |
384 | if (xbsd_readlabel(NULL) == 0) |
385 | if (xbsd_create_disklabel() == 0) |
386 | exit(EXIT_SUCCESS); |
387 | |
388 | #endif |
389 | |
390 | while (1) { |
391 | bb_putchar('\n'); |
392 | switch (tolower(read_nonempty("BSD disklabel command (m for help): "))) { |
393 | case 'd': |
394 | xbsd_delete_part(); |
395 | break; |
396 | case 'e': |
397 | xbsd_edit_disklabel(); |
398 | break; |
399 | case 'i': |
400 | xbsd_write_bootstrap(); |
401 | break; |
402 | case 'l': |
403 | xbsd_list_types(); |
404 | break; |
405 | case 'n': |
406 | xbsd_new_part(); |
407 | break; |
408 | case 'p': |
409 | xbsd_print_disklabel(0); |
410 | break; |
411 | case 'q': |
412 | if (ENABLE_FEATURE_CLEAN_UP) |
413 | close_dev_fd(); |
414 | exit(EXIT_SUCCESS); |
415 | case 'r': |
416 | return; |
417 | case 's': |
418 | xbsd_print_disklabel(1); |
419 | break; |
420 | case 't': |
421 | xbsd_change_fstype(); |
422 | break; |
423 | case 'u': |
424 | change_units(); |
425 | break; |
426 | case 'w': |
427 | xbsd_write_disklabel(); |
428 | break; |
429 | #if !defined(__alpha__) |
430 | case 'x': |
431 | xbsd_link_part(); |
432 | break; |
433 | #endif |
434 | default: |
435 | bsd_menu(); |
436 | break; |
437 | } |
438 | } |
439 | } |
440 | |
441 | static void |
442 | xbsd_delete_part(void) |
443 | { |
444 | int i; |
445 | |
446 | i = xbsd_get_part_index(xbsd_dlabel.d_npartitions); |
447 | xbsd_dlabel.d_partitions[i].p_size = 0; |
448 | xbsd_dlabel.d_partitions[i].p_offset = 0; |
449 | xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED; |
450 | if (xbsd_dlabel.d_npartitions == i + 1) |
451 | while (xbsd_dlabel.d_partitions[xbsd_dlabel.d_npartitions-1].p_size == 0) |
452 | xbsd_dlabel.d_npartitions--; |
453 | } |
454 | |
455 | static void |
456 | xbsd_new_part(void) |
457 | { |
458 | off_t begin, end; |
459 | char mesg[256]; |
460 | int i; |
461 | |
462 | if (!xbsd_check_new_partition(&i)) |
463 | return; |
464 | |
465 | #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__) |
466 | begin = get_start_sect(xbsd_part); |
467 | end = begin + get_nr_sects(xbsd_part) - 1; |
468 | #else |
469 | begin = 0; |
470 | end = xbsd_dlabel.d_secperunit - 1; |
471 | #endif |
472 | |
473 | snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR)); |
474 | begin = read_int(bsd_cround(begin), bsd_cround(begin), bsd_cround(end), |
475 | 0, mesg); |
476 | |
477 | if (display_in_cyl_units) |
478 | begin = (begin - 1) * xbsd_dlabel.d_secpercyl; |
479 | |
480 | snprintf(mesg, sizeof(mesg), "Last %s or +size or +sizeM or +sizeK", |
481 | str_units(SINGULAR)); |
482 | end = read_int(bsd_cround(begin), bsd_cround(end), bsd_cround(end), |
483 | bsd_cround(begin), mesg); |
484 | |
485 | if (display_in_cyl_units) |
486 | end = end * xbsd_dlabel.d_secpercyl - 1; |
487 | |
488 | xbsd_dlabel.d_partitions[i].p_size = end - begin + 1; |
489 | xbsd_dlabel.d_partitions[i].p_offset = begin; |
490 | xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED; |
491 | } |
492 | |
493 | static void |
494 | xbsd_print_disklabel(int show_all) |
495 | { |
496 | struct xbsd_disklabel *lp = &xbsd_dlabel; |
497 | struct xbsd_partition *pp; |
498 | int i, j; |
499 | |
500 | if (show_all) { |
501 | static const int d_masks[] = { BSD_D_REMOVABLE, BSD_D_ECC, BSD_D_BADSECT }; |
502 | |
503 | #if defined(__alpha__) |
504 | printf("# %s:\n", disk_device); |
505 | #else |
506 | printf("# %s:\n", partname(disk_device, xbsd_part_index+1, 0)); |
507 | #endif |
508 | if ((unsigned) lp->d_type < ARRAY_SIZE(xbsd_dktypenames)-1) |
509 | printf("type: %s\n", xbsd_dktypenames[lp->d_type]); |
510 | else |
511 | printf("type: %u\n", lp->d_type); |
512 | printf("disk: %.*s\n", (int) sizeof(lp->d_typename), lp->d_typename); |
513 | printf("label: %.*s\n", (int) sizeof(lp->d_packname), lp->d_packname); |
514 | printf("flags: "); |
515 | print_flags_separated(d_masks, "removable\0""ecc\0""badsect\0", lp->d_flags, " "); |
516 | bb_putchar('\n'); |
517 | /* On various machines the fields of *lp are short/int/long */ |
518 | /* In order to avoid problems, we cast them all to long. */ |
519 | printf("bytes/sector: %lu\n", (long) lp->d_secsize); |
520 | printf("sectors/track: %lu\n", (long) lp->d_nsectors); |
521 | printf("tracks/cylinder: %lu\n", (long) lp->d_ntracks); |
522 | printf("sectors/cylinder: %lu\n", (long) lp->d_secpercyl); |
523 | printf("cylinders: %lu\n", (long) lp->d_ncylinders); |
524 | printf("rpm: %u\n", lp->d_rpm); |
525 | printf("interleave: %u\n", lp->d_interleave); |
526 | printf("trackskew: %u\n", lp->d_trackskew); |
527 | printf("cylinderskew: %u\n", lp->d_cylskew); |
528 | printf("headswitch: %lu\t\t# milliseconds\n", |
529 | (long) lp->d_headswitch); |
530 | printf("track-to-track seek: %lu\t# milliseconds\n", |
531 | (long) lp->d_trkseek); |
532 | printf("drivedata: "); |
533 | for (i = NDDATA - 1; i >= 0; i--) |
534 | if (lp->d_drivedata[i]) |
535 | break; |
536 | if (i < 0) |
537 | i = 0; |
538 | for (j = 0; j <= i; j++) |
539 | printf("%lu ", (long) lp->d_drivedata[j]); |
540 | } |
541 | printf("\n%u partitions:\n", lp->d_npartitions); |
542 | printf("# start end size fstype [fsize bsize cpg]\n"); |
543 | pp = lp->d_partitions; |
544 | for (i = 0; i < lp->d_npartitions; i++, pp++) { |
545 | if (pp->p_size) { |
546 | if (display_in_cyl_units && lp->d_secpercyl) { |
547 | printf(" %c: %8lu%c %8lu%c %8lu%c ", |
548 | 'a' + i, |
549 | (unsigned long) pp->p_offset / lp->d_secpercyl + 1, |
550 | (pp->p_offset % lp->d_secpercyl) ? '*' : ' ', |
551 | (unsigned long) (pp->p_offset + pp->p_size + lp->d_secpercyl - 1) / lp->d_secpercyl, |
552 | ((pp->p_offset + pp->p_size) % lp->d_secpercyl) ? '*' : ' ', |
553 | (long) pp->p_size / lp->d_secpercyl, |
554 | (pp->p_size % lp->d_secpercyl) ? '*' : ' ' |
555 | ); |
556 | } else { |
557 | printf(" %c: %8lu %8lu %8lu ", |
558 | 'a' + i, |
559 | (long) pp->p_offset, |
560 | (long) pp->p_offset + pp->p_size - 1, |
561 | (long) pp->p_size |
562 | ); |
563 | } |
564 | |
565 | if ((unsigned) pp->p_fstype < ARRAY_SIZE(xbsd_fstypes)-1) |
566 | printf("%8.8s", xbsd_fstypes[pp->p_fstype]); |
567 | else |
568 | printf("%8x", pp->p_fstype); |
569 | |
570 | switch (pp->p_fstype) { |
571 | case BSD_FS_UNUSED: |
572 | printf(" %5lu %5lu %5.5s ", |
573 | (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, ""); |
574 | break; |
575 | case BSD_FS_BSDFFS: |
576 | printf(" %5lu %5lu %5u ", |
577 | (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, pp->p_cpg); |
578 | break; |
579 | default: |
580 | printf("%22.22s", ""); |
581 | break; |
582 | } |
583 | bb_putchar('\n'); |
584 | } |
585 | } |
586 | } |
587 | |
588 | static void |
589 | xbsd_write_disklabel(void) |
590 | { |
591 | #if defined(__alpha__) |
592 | printf("Writing disklabel to %s\n", disk_device); |
593 | xbsd_writelabel(NULL); |
594 | #else |
595 | printf("Writing disklabel to %s\n", |
596 | partname(disk_device, xbsd_part_index + 1, 0)); |
597 | xbsd_writelabel(xbsd_part); |
598 | #endif |
599 | reread_partition_table(0); /* no exit yet */ |
600 | } |
601 | |
602 | static int |
603 | xbsd_create_disklabel(void) |
604 | { |
605 | char c; |
606 | |
607 | #if defined(__alpha__) |
608 | printf("%s contains no disklabel\n", disk_device); |
609 | #else |
610 | printf("%s contains no disklabel\n", |
611 | partname(disk_device, xbsd_part_index + 1, 0)); |
612 | #endif |
613 | |
614 | while (1) { |
615 | c = read_nonempty("Do you want to create a disklabel? (y/n) "); |
616 | if ((c|0x20) == 'y') { |
617 | if (xbsd_initlabel( |
618 | #if defined(__alpha__) || defined(__powerpc__) || defined(__hppa__) || \ |
619 | defined(__s390__) || defined(__s390x__) |
620 | NULL |
621 | #else |
622 | xbsd_part |
623 | #endif |
624 | ) == 1) { |
625 | xbsd_print_disklabel(1); |
626 | return 1; |
627 | } |
628 | return 0; |
629 | } |
630 | if ((c|0x20) == 'n') |
631 | return 0; |
632 | } |
633 | } |
634 | |
635 | static int |
636 | edit_int(int def, const char *mesg) |
637 | { |
638 | mesg = xasprintf("%s (%u): ", mesg, def); |
639 | do { |
640 | if (!read_line(mesg)) |
641 | goto ret; |
642 | } while (!isdigit(*line_ptr)); |
643 | def = atoi(line_ptr); |
644 | ret: |
645 | free((char*)mesg); |
646 | return def; |
647 | } |
648 | |
649 | static void |
650 | xbsd_edit_disklabel(void) |
651 | { |
652 | struct xbsd_disklabel *d; |
653 | |
654 | d = &xbsd_dlabel; |
655 | |
656 | #if defined(__alpha__) || defined(__ia64__) |
657 | d->d_secsize = edit_int(d->d_secsize , "bytes/sector"); |
658 | d->d_nsectors = edit_int(d->d_nsectors , "sectors/track"); |
659 | d->d_ntracks = edit_int(d->d_ntracks , "tracks/cylinder"); |
660 | d->d_ncylinders = edit_int(d->d_ncylinders , "cylinders"); |
661 | #endif |
662 | |
663 | /* d->d_secpercyl can be != d->d_nsectors * d->d_ntracks */ |
664 | while (1) { |
665 | d->d_secpercyl = edit_int(d->d_nsectors * d->d_ntracks, |
666 | "sectors/cylinder"); |
667 | if (d->d_secpercyl <= d->d_nsectors * d->d_ntracks) |
668 | break; |
669 | |
670 | printf("Must be <= sectors/track * tracks/cylinder (default)\n"); |
671 | } |
672 | d->d_rpm = edit_int(d->d_rpm , "rpm"); |
673 | d->d_interleave = edit_int(d->d_interleave, "interleave"); |
674 | d->d_trackskew = edit_int(d->d_trackskew , "trackskew"); |
675 | d->d_cylskew = edit_int(d->d_cylskew , "cylinderskew"); |
676 | d->d_headswitch = edit_int(d->d_headswitch, "headswitch"); |
677 | d->d_trkseek = edit_int(d->d_trkseek , "track-to-track seek"); |
678 | |
679 | d->d_secperunit = d->d_secpercyl * d->d_ncylinders; |
680 | } |
681 | |
682 | static int |
683 | xbsd_get_bootstrap(char *path, void *ptr, int size) |
684 | { |
685 | int fdb; |
686 | |
687 | fdb = open_or_warn(path, O_RDONLY); |
688 | if (fdb < 0) { |
689 | return 0; |
690 | } |
691 | if (full_read(fdb, ptr, size) < 0) { |
692 | bb_simple_perror_msg(path); |
693 | close(fdb); |
694 | return 0; |
695 | } |
696 | printf(" ... %s\n", path); |
697 | close(fdb); |
698 | return 1; |
699 | } |
700 | |
701 | static void |
702 | sync_disks(void) |
703 | { |
704 | printf("Syncing disks\n"); |
705 | sync(); |
706 | /* sleep(4); What? */ |
707 | } |
708 | |
709 | static void |
710 | xbsd_write_bootstrap(void) |
711 | { |
712 | char path[MAXPATHLEN]; |
713 | const char *bootdir = BSD_LINUX_BOOTDIR; |
714 | const char *dkbasename; |
715 | struct xbsd_disklabel dl; |
716 | char *d, *p, *e; |
717 | int sector; |
718 | |
719 | if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI) |
720 | dkbasename = "sd"; |
721 | else |
722 | dkbasename = "wd"; |
723 | |
724 | snprintf(path, sizeof(path), "Bootstrap: %sboot -> boot%s (%s): ", |
725 | dkbasename, dkbasename, dkbasename); |
726 | if (read_line(path)) { |
727 | dkbasename = line_ptr; |
728 | } |
729 | snprintf(path, sizeof(path), "%s/%sboot", bootdir, dkbasename); |
730 | if (!xbsd_get_bootstrap(path, disklabelbuffer, (int) xbsd_dlabel.d_secsize)) |
731 | return; |
732 | |
733 | /* We need a backup of the disklabel (xbsd_dlabel might have changed). */ |
734 | d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE]; |
735 | memmove(&dl, d, sizeof(struct xbsd_disklabel)); |
736 | |
737 | /* The disklabel will be overwritten by 0's from bootxx anyway */ |
738 | memset(d, 0, sizeof(struct xbsd_disklabel)); |
739 | |
740 | snprintf(path, sizeof(path), "%s/boot%s", bootdir, dkbasename); |
741 | if (!xbsd_get_bootstrap(path, &disklabelbuffer[xbsd_dlabel.d_secsize], |
742 | (int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize)) |
743 | return; |
744 | |
745 | e = d + sizeof(struct xbsd_disklabel); |
746 | for (p = d; p < e; p++) |
747 | if (*p) { |
748 | printf("Bootstrap overlaps with disk label!\n"); |
749 | exit(EXIT_FAILURE); |
750 | } |
751 | |
752 | memmove(d, &dl, sizeof(struct xbsd_disklabel)); |
753 | |
754 | #if defined(__powerpc__) || defined(__hppa__) |
755 | sector = 0; |
756 | #elif defined(__alpha__) |
757 | sector = 0; |
758 | alpha_bootblock_checksum(disklabelbuffer); |
759 | #else |
760 | sector = get_start_sect(xbsd_part); |
761 | #endif |
762 | |
763 | seek_sector(sector); |
764 | xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE); |
765 | |
766 | #if defined(__alpha__) |
767 | printf("Bootstrap installed on %s\n", disk_device); |
768 | #else |
769 | printf("Bootstrap installed on %s\n", |
770 | partname(disk_device, xbsd_part_index+1, 0)); |
771 | #endif |
772 | |
773 | sync_disks(); |
774 | } |
775 | |
776 | static void |
777 | xbsd_change_fstype(void) |
778 | { |
779 | int i; |
780 | |
781 | i = xbsd_get_part_index(xbsd_dlabel.d_npartitions); |
782 | xbsd_dlabel.d_partitions[i].p_fstype = read_hex(xbsd_fstypes); |
783 | } |
784 | |
785 | static int |
786 | xbsd_get_part_index(int max) |
787 | { |
788 | char prompt[sizeof("Partition (a-%c): ") + 16]; |
789 | char l; |
790 | |
791 | snprintf(prompt, sizeof(prompt), "Partition (a-%c): ", 'a' + max - 1); |
792 | do |
793 | l = tolower(read_nonempty(prompt)); |
794 | while (l < 'a' || l > 'a' + max - 1); |
795 | return l - 'a'; |
796 | } |
797 | |
798 | static int |
799 | xbsd_check_new_partition(int *i) |
800 | { |
801 | /* room for more? various BSD flavours have different maxima */ |
802 | if (xbsd_dlabel.d_npartitions == BSD_MAXPARTITIONS) { |
803 | int t; |
804 | |
805 | for (t = 0; t < BSD_MAXPARTITIONS; t++) |
806 | if (xbsd_dlabel.d_partitions[t].p_size == 0) |
807 | break; |
808 | |
809 | if (t == BSD_MAXPARTITIONS) { |
810 | printf("The maximum number of partitions has been created\n"); |
811 | return 0; |
812 | } |
813 | } |
814 | |
815 | *i = xbsd_get_part_index(BSD_MAXPARTITIONS); |
816 | |
817 | if (*i >= xbsd_dlabel.d_npartitions) |
818 | xbsd_dlabel.d_npartitions = (*i) + 1; |
819 | |
820 | if (xbsd_dlabel.d_partitions[*i].p_size != 0) { |
821 | printf("This partition already exists\n"); |
822 | return 0; |
823 | } |
824 | |
825 | return 1; |
826 | } |
827 | |
828 | static void |
829 | xbsd_list_types(void) |
830 | { |
831 | list_types(xbsd_fstypes); |
832 | } |
833 | |
834 | static uint16_t |
835 | xbsd_dkcksum(struct xbsd_disklabel *lp) |
836 | { |
837 | uint16_t *start, *end; |
838 | uint16_t sum = 0; |
839 | |
840 | start = (uint16_t *) lp; |
841 | end = (uint16_t *) &lp->d_partitions[lp->d_npartitions]; |
842 | while (start < end) |
843 | sum ^= *start++; |
844 | return sum; |
845 | } |
846 | |
847 | static int |
848 | xbsd_initlabel(struct partition *p) |
849 | { |
850 | struct xbsd_disklabel *d = &xbsd_dlabel; |
851 | struct xbsd_partition *pp; |
852 | |
853 | get_geometry(); |
854 | memset(d, 0, sizeof(struct xbsd_disklabel)); |
855 | |
856 | d->d_magic = BSD_DISKMAGIC; |
857 | |
858 | if (is_prefixed_with(disk_device, "/dev/sd")) |
859 | d->d_type = BSD_DTYPE_SCSI; |
860 | else |
861 | d->d_type = BSD_DTYPE_ST506; |
862 | |
863 | #if !defined(__alpha__) |
864 | d->d_flags = BSD_D_DOSPART; |
865 | #else |
866 | d->d_flags = 0; |
867 | #endif |
868 | d->d_secsize = SECTOR_SIZE; /* bytes/sector */ |
869 | d->d_nsectors = g_sectors; /* sectors/track */ |
870 | d->d_ntracks = g_heads; /* tracks/cylinder (heads) */ |
871 | d->d_ncylinders = g_cylinders; |
872 | d->d_secpercyl = g_sectors * g_heads;/* sectors/cylinder */ |
873 | if (d->d_secpercyl == 0) |
874 | d->d_secpercyl = 1; /* avoid segfaults */ |
875 | d->d_secperunit = d->d_secpercyl * d->d_ncylinders; |
876 | |
877 | d->d_rpm = 3600; |
878 | d->d_interleave = 1; |
879 | d->d_trackskew = 0; |
880 | d->d_cylskew = 0; |
881 | d->d_headswitch = 0; |
882 | d->d_trkseek = 0; |
883 | |
884 | d->d_magic2 = BSD_DISKMAGIC; |
885 | d->d_bbsize = BSD_BBSIZE; |
886 | d->d_sbsize = BSD_SBSIZE; |
887 | |
888 | #if !defined(__alpha__) |
889 | d->d_npartitions = 4; |
890 | pp = &d->d_partitions[2]; /* Partition C should be NetBSD partition */ |
891 | |
892 | pp->p_offset = get_start_sect(p); |
893 | pp->p_size = get_nr_sects(p); |
894 | pp->p_fstype = BSD_FS_UNUSED; |
895 | pp = &d->d_partitions[3]; /* Partition D should be whole disk */ |
896 | |
897 | pp->p_offset = 0; |
898 | pp->p_size = d->d_secperunit; |
899 | pp->p_fstype = BSD_FS_UNUSED; |
900 | #else |
901 | d->d_npartitions = 3; |
902 | pp = &d->d_partitions[2]; /* Partition C should be the whole disk */ |
903 | pp->p_offset = 0; |
904 | pp->p_size = d->d_secperunit; |
905 | pp->p_fstype = BSD_FS_UNUSED; |
906 | #endif |
907 | |
908 | return 1; |
909 | } |
910 | |
911 | /* |
912 | * Read a xbsd_disklabel from sector 0 or from the starting sector of p. |
913 | * If it has the right magic, return 1. |
914 | */ |
915 | static int |
916 | xbsd_readlabel(struct partition *p) |
917 | { |
918 | struct xbsd_disklabel *d; |
919 | int t, sector; |
920 | |
921 | if (!bsd_globals_ptr) |
922 | bsd_globals_ptr = xzalloc(sizeof(*bsd_globals_ptr)); |
923 | |
924 | d = &xbsd_dlabel; |
925 | |
926 | /* p is used only to get the starting sector */ |
927 | #if !defined(__alpha__) |
928 | sector = (p ? get_start_sect(p) : 0); |
929 | #else |
930 | sector = 0; |
931 | #endif |
932 | |
933 | seek_sector(sector); |
934 | if (BSD_BBSIZE != full_read(dev_fd, disklabelbuffer, BSD_BBSIZE)) |
935 | fdisk_fatal(unable_to_read); |
936 | |
937 | memmove(d, &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET], |
938 | sizeof(struct xbsd_disklabel)); |
939 | |
940 | if (d->d_magic != BSD_DISKMAGIC || d->d_magic2 != BSD_DISKMAGIC) |
941 | return 0; |
942 | |
943 | for (t = d->d_npartitions; t < BSD_MAXPARTITIONS; t++) { |
944 | d->d_partitions[t].p_size = 0; |
945 | d->d_partitions[t].p_offset = 0; |
946 | d->d_partitions[t].p_fstype = BSD_FS_UNUSED; |
947 | } |
948 | |
949 | if (d->d_npartitions > BSD_MAXPARTITIONS) |
950 | printf("Warning: too many partitions (%u, maximum is %u)\n", |
951 | d->d_npartitions, BSD_MAXPARTITIONS); |
952 | return 1; |
953 | } |
954 | |
955 | static int |
956 | xbsd_writelabel(struct partition *p) |
957 | { |
958 | struct xbsd_disklabel *d = &xbsd_dlabel; |
959 | unsigned int sector; |
960 | |
961 | #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__) |
962 | sector = get_start_sect(p) + BSD_LABELSECTOR; |
963 | #else |
964 | (void)p; /* silence warning */ |
965 | sector = BSD_LABELSECTOR; |
966 | #endif |
967 | |
968 | d->d_checksum = 0; |
969 | d->d_checksum = xbsd_dkcksum(d); |
970 | |
971 | /* This is necessary if we want to write the bootstrap later, |
972 | otherwise we'd write the old disklabel with the bootstrap. |
973 | */ |
974 | memmove(&disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET], |
975 | d, sizeof(struct xbsd_disklabel)); |
976 | |
977 | #if defined(__alpha__) && BSD_LABELSECTOR == 0 |
978 | alpha_bootblock_checksum(disklabelbuffer); |
979 | seek_sector(0); |
980 | xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE); |
981 | #else |
982 | seek_sector(sector); |
983 | lseek(dev_fd, BSD_LABELOFFSET, SEEK_CUR); |
984 | xwrite(dev_fd, d, sizeof(*d)); |
985 | #endif |
986 | sync_disks(); |
987 | return 1; |
988 | } |
989 | |
990 | |
991 | #if !defined(__alpha__) |
992 | static int |
993 | xbsd_translate_fstype(int linux_type) |
994 | { |
995 | switch (linux_type) { |
996 | case 0x01: /* DOS 12-bit FAT */ |
997 | case 0x04: /* DOS 16-bit <32M */ |
998 | case 0x06: /* DOS 16-bit >=32M */ |
999 | case 0xe1: /* DOS access */ |
1000 | case 0xe3: /* DOS R/O */ |
1001 | case 0xf2: /* DOS secondary */ |
1002 | return BSD_FS_MSDOS; |
1003 | case 0x07: /* OS/2 HPFS */ |
1004 | return BSD_FS_HPFS; |
1005 | default: |
1006 | return BSD_FS_OTHER; |
1007 | } |
1008 | } |
1009 | |
1010 | static void |
1011 | xbsd_link_part(void) |
1012 | { |
1013 | int k, i; |
1014 | struct partition *p; |
1015 | |
1016 | k = get_partition(1, g_partitions); |
1017 | |
1018 | if (!xbsd_check_new_partition(&i)) |
1019 | return; |
1020 | |
1021 | p = get_part_table(k); |
1022 | |
1023 | xbsd_dlabel.d_partitions[i].p_size = get_nr_sects(p); |
1024 | xbsd_dlabel.d_partitions[i].p_offset = get_start_sect(p); |
1025 | xbsd_dlabel.d_partitions[i].p_fstype = xbsd_translate_fstype(p->sys_ind); |
1026 | } |
1027 | #endif |
1028 | |
1029 | #if defined(__alpha__) |
1030 | static void |
1031 | alpha_bootblock_checksum(char *boot) |
1032 | { |
1033 | uint64_t *dp, sum; |
1034 | int i; |
1035 | |
1036 | dp = (uint64_t *)boot; |
1037 | sum = 0; |
1038 | for (i = 0; i < 63; i++) |
1039 | sum += dp[i]; |
1040 | dp[63] = sum; |
1041 | } |
1042 | #endif /* __alpha__ */ |
1043 | |
1044 | /* Undefine 'global' tricks */ |
1045 | #undef disklabelbuffer |
1046 | #undef xbsd_dlabel |
1047 | |
1048 | #endif /* OSF_LABEL */ |
1049 |