blob: ff16389bd5a7aa834f3f1f86a151c92beed505af
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 | if (t == 4) { |
377 | printf("There is no *BSD partition on %s\n", disk_device); |
378 | return; |
379 | } |
380 | |
381 | #elif defined(__alpha__) |
382 | |
383 | if (xbsd_readlabel(NULL) == 0) |
384 | if (xbsd_create_disklabel() == 0) |
385 | exit(EXIT_SUCCESS); |
386 | |
387 | #endif |
388 | |
389 | while (1) { |
390 | bb_putchar('\n'); |
391 | switch (tolower(read_nonempty("BSD disklabel command (m for help): "))) { |
392 | case 'd': |
393 | xbsd_delete_part(); |
394 | break; |
395 | case 'e': |
396 | xbsd_edit_disklabel(); |
397 | break; |
398 | case 'i': |
399 | xbsd_write_bootstrap(); |
400 | break; |
401 | case 'l': |
402 | xbsd_list_types(); |
403 | break; |
404 | case 'n': |
405 | xbsd_new_part(); |
406 | break; |
407 | case 'p': |
408 | xbsd_print_disklabel(0); |
409 | break; |
410 | case 'q': |
411 | if (ENABLE_FEATURE_CLEAN_UP) |
412 | close_dev_fd(); |
413 | exit(EXIT_SUCCESS); |
414 | case 'r': |
415 | return; |
416 | case 's': |
417 | xbsd_print_disklabel(1); |
418 | break; |
419 | case 't': |
420 | xbsd_change_fstype(); |
421 | break; |
422 | case 'u': |
423 | change_units(); |
424 | break; |
425 | case 'w': |
426 | xbsd_write_disklabel(); |
427 | break; |
428 | #if !defined(__alpha__) |
429 | case 'x': |
430 | xbsd_link_part(); |
431 | break; |
432 | #endif |
433 | default: |
434 | bsd_menu(); |
435 | break; |
436 | } |
437 | } |
438 | } |
439 | |
440 | static void |
441 | xbsd_delete_part(void) |
442 | { |
443 | int i; |
444 | |
445 | i = xbsd_get_part_index(xbsd_dlabel.d_npartitions); |
446 | xbsd_dlabel.d_partitions[i].p_size = 0; |
447 | xbsd_dlabel.d_partitions[i].p_offset = 0; |
448 | xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED; |
449 | if (xbsd_dlabel.d_npartitions == i + 1) |
450 | while (xbsd_dlabel.d_partitions[xbsd_dlabel.d_npartitions-1].p_size == 0) |
451 | xbsd_dlabel.d_npartitions--; |
452 | } |
453 | |
454 | static void |
455 | xbsd_new_part(void) |
456 | { |
457 | off_t begin, end; |
458 | char mesg[256]; |
459 | int i; |
460 | |
461 | if (!xbsd_check_new_partition(&i)) |
462 | return; |
463 | |
464 | #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__) |
465 | begin = get_start_sect(xbsd_part); |
466 | end = begin + get_nr_sects(xbsd_part) - 1; |
467 | #else |
468 | begin = 0; |
469 | end = xbsd_dlabel.d_secperunit - 1; |
470 | #endif |
471 | |
472 | snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR)); |
473 | begin = read_int(bsd_cround(begin), bsd_cround(begin), bsd_cround(end), |
474 | 0, mesg); |
475 | |
476 | if (display_in_cyl_units) |
477 | begin = (begin - 1) * xbsd_dlabel.d_secpercyl; |
478 | |
479 | snprintf(mesg, sizeof(mesg), "Last %s or +size or +sizeM or +sizeK", |
480 | str_units(SINGULAR)); |
481 | end = read_int(bsd_cround(begin), bsd_cround(end), bsd_cround(end), |
482 | bsd_cround(begin), mesg); |
483 | |
484 | if (display_in_cyl_units) |
485 | end = end * xbsd_dlabel.d_secpercyl - 1; |
486 | |
487 | xbsd_dlabel.d_partitions[i].p_size = end - begin + 1; |
488 | xbsd_dlabel.d_partitions[i].p_offset = begin; |
489 | xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED; |
490 | } |
491 | |
492 | static void |
493 | xbsd_print_disklabel(int show_all) |
494 | { |
495 | struct xbsd_disklabel *lp = &xbsd_dlabel; |
496 | struct xbsd_partition *pp; |
497 | int i, j; |
498 | |
499 | if (show_all) { |
500 | static const int d_masks[] = { BSD_D_REMOVABLE, BSD_D_ECC, BSD_D_BADSECT }; |
501 | |
502 | #if defined(__alpha__) |
503 | printf("# %s:\n", disk_device); |
504 | #else |
505 | printf("# %s:\n", partname(disk_device, xbsd_part_index+1, 0)); |
506 | #endif |
507 | if ((unsigned) lp->d_type < ARRAY_SIZE(xbsd_dktypenames)-1) |
508 | printf("type: %s\n", xbsd_dktypenames[lp->d_type]); |
509 | else |
510 | printf("type: %u\n", lp->d_type); |
511 | printf("disk: %.*s\n", (int) sizeof(lp->d_typename), lp->d_typename); |
512 | printf("label: %.*s\n", (int) sizeof(lp->d_packname), lp->d_packname); |
513 | printf("flags: "); |
514 | print_flags_separated(d_masks, "removable\0""ecc\0""badsect\0", lp->d_flags, " "); |
515 | bb_putchar('\n'); |
516 | /* On various machines the fields of *lp are short/int/long */ |
517 | /* In order to avoid problems, we cast them all to long. */ |
518 | printf("bytes/sector: %lu\n", (long) lp->d_secsize); |
519 | printf("sectors/track: %lu\n", (long) lp->d_nsectors); |
520 | printf("tracks/cylinder: %lu\n", (long) lp->d_ntracks); |
521 | printf("sectors/cylinder: %lu\n", (long) lp->d_secpercyl); |
522 | printf("cylinders: %lu\n", (long) lp->d_ncylinders); |
523 | printf("rpm: %u\n", lp->d_rpm); |
524 | printf("interleave: %u\n", lp->d_interleave); |
525 | printf("trackskew: %u\n", lp->d_trackskew); |
526 | printf("cylinderskew: %u\n", lp->d_cylskew); |
527 | printf("headswitch: %lu\t\t# milliseconds\n", |
528 | (long) lp->d_headswitch); |
529 | printf("track-to-track seek: %lu\t# milliseconds\n", |
530 | (long) lp->d_trkseek); |
531 | printf("drivedata: "); |
532 | for (i = NDDATA - 1; i >= 0; i--) |
533 | if (lp->d_drivedata[i]) |
534 | break; |
535 | if (i < 0) |
536 | i = 0; |
537 | for (j = 0; j <= i; j++) |
538 | printf("%lu ", (long) lp->d_drivedata[j]); |
539 | } |
540 | printf("\n%u partitions:\n", lp->d_npartitions); |
541 | printf("# start end size fstype [fsize bsize cpg]\n"); |
542 | pp = lp->d_partitions; |
543 | for (i = 0; i < lp->d_npartitions; i++, pp++) { |
544 | if (pp->p_size) { |
545 | if (display_in_cyl_units && lp->d_secpercyl) { |
546 | printf(" %c: %8lu%c %8lu%c %8lu%c ", |
547 | 'a' + i, |
548 | (unsigned long) pp->p_offset / lp->d_secpercyl + 1, |
549 | (pp->p_offset % lp->d_secpercyl) ? '*' : ' ', |
550 | (unsigned long) (pp->p_offset + pp->p_size + lp->d_secpercyl - 1) / lp->d_secpercyl, |
551 | ((pp->p_offset + pp->p_size) % lp->d_secpercyl) ? '*' : ' ', |
552 | (long) pp->p_size / lp->d_secpercyl, |
553 | (pp->p_size % lp->d_secpercyl) ? '*' : ' ' |
554 | ); |
555 | } else { |
556 | printf(" %c: %8lu %8lu %8lu ", |
557 | 'a' + i, |
558 | (long) pp->p_offset, |
559 | (long) pp->p_offset + pp->p_size - 1, |
560 | (long) pp->p_size |
561 | ); |
562 | } |
563 | |
564 | if ((unsigned) pp->p_fstype < ARRAY_SIZE(xbsd_fstypes)-1) |
565 | printf("%8.8s", xbsd_fstypes[pp->p_fstype]); |
566 | else |
567 | printf("%8x", pp->p_fstype); |
568 | |
569 | switch (pp->p_fstype) { |
570 | case BSD_FS_UNUSED: |
571 | printf(" %5lu %5lu %5.5s ", |
572 | (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, ""); |
573 | break; |
574 | case BSD_FS_BSDFFS: |
575 | printf(" %5lu %5lu %5u ", |
576 | (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, pp->p_cpg); |
577 | break; |
578 | default: |
579 | printf("%22.22s", ""); |
580 | break; |
581 | } |
582 | bb_putchar('\n'); |
583 | } |
584 | } |
585 | } |
586 | |
587 | static void |
588 | xbsd_write_disklabel(void) |
589 | { |
590 | #if defined(__alpha__) |
591 | printf("Writing disklabel to %s\n", disk_device); |
592 | xbsd_writelabel(NULL); |
593 | #else |
594 | printf("Writing disklabel to %s\n", |
595 | partname(disk_device, xbsd_part_index + 1, 0)); |
596 | xbsd_writelabel(xbsd_part); |
597 | #endif |
598 | reread_partition_table(0); /* no exit yet */ |
599 | } |
600 | |
601 | static int |
602 | xbsd_create_disklabel(void) |
603 | { |
604 | char c; |
605 | |
606 | #if defined(__alpha__) |
607 | printf("%s contains no disklabel\n", disk_device); |
608 | #else |
609 | printf("%s contains no disklabel\n", |
610 | partname(disk_device, xbsd_part_index + 1, 0)); |
611 | #endif |
612 | |
613 | while (1) { |
614 | c = read_nonempty("Do you want to create a disklabel? (y/n) "); |
615 | if ((c|0x20) == 'y') { |
616 | if (xbsd_initlabel( |
617 | #if defined(__alpha__) || defined(__powerpc__) || defined(__hppa__) || \ |
618 | defined(__s390__) || defined(__s390x__) |
619 | NULL |
620 | #else |
621 | xbsd_part |
622 | #endif |
623 | ) == 1) { |
624 | xbsd_print_disklabel(1); |
625 | return 1; |
626 | } |
627 | return 0; |
628 | } |
629 | if ((c|0x20) == 'n') |
630 | return 0; |
631 | } |
632 | } |
633 | |
634 | static int |
635 | edit_int(int def, const char *mesg) |
636 | { |
637 | mesg = xasprintf("%s (%u): ", mesg, def); |
638 | do { |
639 | if (!read_line(mesg)) |
640 | goto ret; |
641 | } while (!isdigit(*line_ptr)); |
642 | def = atoi(line_ptr); |
643 | ret: |
644 | free((char*)mesg); |
645 | return def; |
646 | } |
647 | |
648 | static void |
649 | xbsd_edit_disklabel(void) |
650 | { |
651 | struct xbsd_disklabel *d; |
652 | |
653 | d = &xbsd_dlabel; |
654 | |
655 | #if defined(__alpha__) || defined(__ia64__) |
656 | d->d_secsize = edit_int(d->d_secsize , "bytes/sector"); |
657 | d->d_nsectors = edit_int(d->d_nsectors , "sectors/track"); |
658 | d->d_ntracks = edit_int(d->d_ntracks , "tracks/cylinder"); |
659 | d->d_ncylinders = edit_int(d->d_ncylinders , "cylinders"); |
660 | #endif |
661 | |
662 | /* d->d_secpercyl can be != d->d_nsectors * d->d_ntracks */ |
663 | while (1) { |
664 | d->d_secpercyl = edit_int(d->d_nsectors * d->d_ntracks, |
665 | "sectors/cylinder"); |
666 | if (d->d_secpercyl <= d->d_nsectors * d->d_ntracks) |
667 | break; |
668 | |
669 | printf("Must be <= sectors/track * tracks/cylinder (default)\n"); |
670 | } |
671 | d->d_rpm = edit_int(d->d_rpm , "rpm"); |
672 | d->d_interleave = edit_int(d->d_interleave, "interleave"); |
673 | d->d_trackskew = edit_int(d->d_trackskew , "trackskew"); |
674 | d->d_cylskew = edit_int(d->d_cylskew , "cylinderskew"); |
675 | d->d_headswitch = edit_int(d->d_headswitch, "headswitch"); |
676 | d->d_trkseek = edit_int(d->d_trkseek , "track-to-track seek"); |
677 | |
678 | d->d_secperunit = d->d_secpercyl * d->d_ncylinders; |
679 | } |
680 | |
681 | static int |
682 | xbsd_get_bootstrap(char *path, void *ptr, int size) |
683 | { |
684 | int fdb; |
685 | |
686 | fdb = open_or_warn(path, O_RDONLY); |
687 | if (fdb < 0) { |
688 | return 0; |
689 | } |
690 | if (full_read(fdb, ptr, size) < 0) { |
691 | bb_simple_perror_msg(path); |
692 | close(fdb); |
693 | return 0; |
694 | } |
695 | printf(" ... %s\n", path); |
696 | close(fdb); |
697 | return 1; |
698 | } |
699 | |
700 | static void |
701 | sync_disks(void) |
702 | { |
703 | printf("Syncing disks\n"); |
704 | sync(); |
705 | /* sleep(4); What? */ |
706 | } |
707 | |
708 | static void |
709 | xbsd_write_bootstrap(void) |
710 | { |
711 | char path[MAXPATHLEN]; |
712 | const char *bootdir = BSD_LINUX_BOOTDIR; |
713 | const char *dkbasename; |
714 | struct xbsd_disklabel dl; |
715 | char *d, *p, *e; |
716 | int sector; |
717 | |
718 | if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI) |
719 | dkbasename = "sd"; |
720 | else |
721 | dkbasename = "wd"; |
722 | |
723 | snprintf(path, sizeof(path), "Bootstrap: %sboot -> boot%s (%s): ", |
724 | dkbasename, dkbasename, dkbasename); |
725 | if (read_line(path)) { |
726 | dkbasename = line_ptr; |
727 | } |
728 | snprintf(path, sizeof(path), "%s/%sboot", bootdir, dkbasename); |
729 | if (!xbsd_get_bootstrap(path, disklabelbuffer, (int) xbsd_dlabel.d_secsize)) |
730 | return; |
731 | |
732 | /* We need a backup of the disklabel (xbsd_dlabel might have changed). */ |
733 | d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE]; |
734 | memmove(&dl, d, sizeof(struct xbsd_disklabel)); |
735 | |
736 | /* The disklabel will be overwritten by 0's from bootxx anyway */ |
737 | memset(d, 0, sizeof(struct xbsd_disklabel)); |
738 | |
739 | snprintf(path, sizeof(path), "%s/boot%s", bootdir, dkbasename); |
740 | if (!xbsd_get_bootstrap(path, &disklabelbuffer[xbsd_dlabel.d_secsize], |
741 | (int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize)) |
742 | return; |
743 | |
744 | e = d + sizeof(struct xbsd_disklabel); |
745 | for (p = d; p < e; p++) |
746 | if (*p) { |
747 | printf("Bootstrap overlaps with disk label!\n"); |
748 | exit(EXIT_FAILURE); |
749 | } |
750 | |
751 | memmove(d, &dl, sizeof(struct xbsd_disklabel)); |
752 | |
753 | #if defined(__powerpc__) || defined(__hppa__) |
754 | sector = 0; |
755 | #elif defined(__alpha__) |
756 | sector = 0; |
757 | alpha_bootblock_checksum(disklabelbuffer); |
758 | #else |
759 | sector = get_start_sect(xbsd_part); |
760 | #endif |
761 | |
762 | seek_sector(sector); |
763 | xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE); |
764 | |
765 | #if defined(__alpha__) |
766 | printf("Bootstrap installed on %s\n", disk_device); |
767 | #else |
768 | printf("Bootstrap installed on %s\n", |
769 | partname(disk_device, xbsd_part_index+1, 0)); |
770 | #endif |
771 | |
772 | sync_disks(); |
773 | } |
774 | |
775 | static void |
776 | xbsd_change_fstype(void) |
777 | { |
778 | int i; |
779 | |
780 | i = xbsd_get_part_index(xbsd_dlabel.d_npartitions); |
781 | xbsd_dlabel.d_partitions[i].p_fstype = read_hex(xbsd_fstypes); |
782 | } |
783 | |
784 | static int |
785 | xbsd_get_part_index(int max) |
786 | { |
787 | char prompt[sizeof("Partition (a-%c): ") + 16]; |
788 | char l; |
789 | |
790 | snprintf(prompt, sizeof(prompt), "Partition (a-%c): ", 'a' + max - 1); |
791 | do |
792 | l = tolower(read_nonempty(prompt)); |
793 | while (l < 'a' || l > 'a' + max - 1); |
794 | return l - 'a'; |
795 | } |
796 | |
797 | static int |
798 | xbsd_check_new_partition(int *i) |
799 | { |
800 | /* room for more? various BSD flavours have different maxima */ |
801 | if (xbsd_dlabel.d_npartitions == BSD_MAXPARTITIONS) { |
802 | int t; |
803 | |
804 | for (t = 0; t < BSD_MAXPARTITIONS; t++) |
805 | if (xbsd_dlabel.d_partitions[t].p_size == 0) |
806 | break; |
807 | |
808 | if (t == BSD_MAXPARTITIONS) { |
809 | printf("The maximum number of partitions has been created\n"); |
810 | return 0; |
811 | } |
812 | } |
813 | |
814 | *i = xbsd_get_part_index(BSD_MAXPARTITIONS); |
815 | |
816 | if (*i >= xbsd_dlabel.d_npartitions) |
817 | xbsd_dlabel.d_npartitions = (*i) + 1; |
818 | |
819 | if (xbsd_dlabel.d_partitions[*i].p_size != 0) { |
820 | printf("This partition already exists\n"); |
821 | return 0; |
822 | } |
823 | |
824 | return 1; |
825 | } |
826 | |
827 | static void |
828 | xbsd_list_types(void) |
829 | { |
830 | list_types(xbsd_fstypes); |
831 | } |
832 | |
833 | static uint16_t |
834 | xbsd_dkcksum(struct xbsd_disklabel *lp) |
835 | { |
836 | uint16_t *start, *end; |
837 | uint16_t sum = 0; |
838 | |
839 | start = (uint16_t *) lp; |
840 | end = (uint16_t *) &lp->d_partitions[lp->d_npartitions]; |
841 | while (start < end) |
842 | sum ^= *start++; |
843 | return sum; |
844 | } |
845 | |
846 | static int |
847 | xbsd_initlabel(struct partition *p) |
848 | { |
849 | struct xbsd_disklabel *d = &xbsd_dlabel; |
850 | struct xbsd_partition *pp; |
851 | |
852 | get_geometry(); |
853 | memset(d, 0, sizeof(struct xbsd_disklabel)); |
854 | |
855 | d->d_magic = BSD_DISKMAGIC; |
856 | |
857 | if (strncmp(disk_device, "/dev/sd", 7) == 0) |
858 | d->d_type = BSD_DTYPE_SCSI; |
859 | else |
860 | d->d_type = BSD_DTYPE_ST506; |
861 | |
862 | #if !defined(__alpha__) |
863 | d->d_flags = BSD_D_DOSPART; |
864 | #else |
865 | d->d_flags = 0; |
866 | #endif |
867 | d->d_secsize = SECTOR_SIZE; /* bytes/sector */ |
868 | d->d_nsectors = g_sectors; /* sectors/track */ |
869 | d->d_ntracks = g_heads; /* tracks/cylinder (heads) */ |
870 | d->d_ncylinders = g_cylinders; |
871 | d->d_secpercyl = g_sectors * g_heads;/* sectors/cylinder */ |
872 | if (d->d_secpercyl == 0) |
873 | d->d_secpercyl = 1; /* avoid segfaults */ |
874 | d->d_secperunit = d->d_secpercyl * d->d_ncylinders; |
875 | |
876 | d->d_rpm = 3600; |
877 | d->d_interleave = 1; |
878 | d->d_trackskew = 0; |
879 | d->d_cylskew = 0; |
880 | d->d_headswitch = 0; |
881 | d->d_trkseek = 0; |
882 | |
883 | d->d_magic2 = BSD_DISKMAGIC; |
884 | d->d_bbsize = BSD_BBSIZE; |
885 | d->d_sbsize = BSD_SBSIZE; |
886 | |
887 | #if !defined(__alpha__) |
888 | d->d_npartitions = 4; |
889 | pp = &d->d_partitions[2]; /* Partition C should be NetBSD partition */ |
890 | |
891 | pp->p_offset = get_start_sect(p); |
892 | pp->p_size = get_nr_sects(p); |
893 | pp->p_fstype = BSD_FS_UNUSED; |
894 | pp = &d->d_partitions[3]; /* Partition D should be whole disk */ |
895 | |
896 | pp->p_offset = 0; |
897 | pp->p_size = d->d_secperunit; |
898 | pp->p_fstype = BSD_FS_UNUSED; |
899 | #else |
900 | d->d_npartitions = 3; |
901 | pp = &d->d_partitions[2]; /* Partition C should be the whole disk */ |
902 | pp->p_offset = 0; |
903 | pp->p_size = d->d_secperunit; |
904 | pp->p_fstype = BSD_FS_UNUSED; |
905 | #endif |
906 | |
907 | return 1; |
908 | } |
909 | |
910 | /* |
911 | * Read a xbsd_disklabel from sector 0 or from the starting sector of p. |
912 | * If it has the right magic, return 1. |
913 | */ |
914 | static int |
915 | xbsd_readlabel(struct partition *p) |
916 | { |
917 | struct xbsd_disklabel *d; |
918 | int t, sector; |
919 | |
920 | if (!bsd_globals_ptr) |
921 | bsd_globals_ptr = xzalloc(sizeof(*bsd_globals_ptr)); |
922 | |
923 | d = &xbsd_dlabel; |
924 | |
925 | /* p is used only to get the starting sector */ |
926 | #if !defined(__alpha__) |
927 | sector = (p ? get_start_sect(p) : 0); |
928 | #else |
929 | sector = 0; |
930 | #endif |
931 | |
932 | seek_sector(sector); |
933 | if (BSD_BBSIZE != full_read(dev_fd, disklabelbuffer, BSD_BBSIZE)) |
934 | fdisk_fatal(unable_to_read); |
935 | |
936 | memmove(d, &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET], |
937 | sizeof(struct xbsd_disklabel)); |
938 | |
939 | if (d->d_magic != BSD_DISKMAGIC || d->d_magic2 != BSD_DISKMAGIC) |
940 | return 0; |
941 | |
942 | for (t = d->d_npartitions; t < BSD_MAXPARTITIONS; t++) { |
943 | d->d_partitions[t].p_size = 0; |
944 | d->d_partitions[t].p_offset = 0; |
945 | d->d_partitions[t].p_fstype = BSD_FS_UNUSED; |
946 | } |
947 | |
948 | if (d->d_npartitions > BSD_MAXPARTITIONS) |
949 | printf("Warning: too many partitions (%u, maximum is %u)\n", |
950 | d->d_npartitions, BSD_MAXPARTITIONS); |
951 | return 1; |
952 | } |
953 | |
954 | static int |
955 | xbsd_writelabel(struct partition *p) |
956 | { |
957 | struct xbsd_disklabel *d = &xbsd_dlabel; |
958 | unsigned int sector; |
959 | |
960 | #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__) |
961 | sector = get_start_sect(p) + BSD_LABELSECTOR; |
962 | #else |
963 | (void)p; /* silence warning */ |
964 | sector = BSD_LABELSECTOR; |
965 | #endif |
966 | |
967 | d->d_checksum = 0; |
968 | d->d_checksum = xbsd_dkcksum(d); |
969 | |
970 | /* This is necessary if we want to write the bootstrap later, |
971 | otherwise we'd write the old disklabel with the bootstrap. |
972 | */ |
973 | memmove(&disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET], |
974 | d, sizeof(struct xbsd_disklabel)); |
975 | |
976 | #if defined(__alpha__) && BSD_LABELSECTOR == 0 |
977 | alpha_bootblock_checksum(disklabelbuffer); |
978 | seek_sector(0); |
979 | xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE); |
980 | #else |
981 | seek_sector(sector); |
982 | lseek(dev_fd, BSD_LABELOFFSET, SEEK_CUR); |
983 | xwrite(dev_fd, d, sizeof(*d)); |
984 | #endif |
985 | sync_disks(); |
986 | return 1; |
987 | } |
988 | |
989 | |
990 | #if !defined(__alpha__) |
991 | static int |
992 | xbsd_translate_fstype(int linux_type) |
993 | { |
994 | switch (linux_type) { |
995 | case 0x01: /* DOS 12-bit FAT */ |
996 | case 0x04: /* DOS 16-bit <32M */ |
997 | case 0x06: /* DOS 16-bit >=32M */ |
998 | case 0xe1: /* DOS access */ |
999 | case 0xe3: /* DOS R/O */ |
1000 | case 0xf2: /* DOS secondary */ |
1001 | return BSD_FS_MSDOS; |
1002 | case 0x07: /* OS/2 HPFS */ |
1003 | return BSD_FS_HPFS; |
1004 | default: |
1005 | return BSD_FS_OTHER; |
1006 | } |
1007 | } |
1008 | |
1009 | static void |
1010 | xbsd_link_part(void) |
1011 | { |
1012 | int k, i; |
1013 | struct partition *p; |
1014 | |
1015 | k = get_partition(1, g_partitions); |
1016 | |
1017 | if (!xbsd_check_new_partition(&i)) |
1018 | return; |
1019 | |
1020 | p = get_part_table(k); |
1021 | |
1022 | xbsd_dlabel.d_partitions[i].p_size = get_nr_sects(p); |
1023 | xbsd_dlabel.d_partitions[i].p_offset = get_start_sect(p); |
1024 | xbsd_dlabel.d_partitions[i].p_fstype = xbsd_translate_fstype(p->sys_ind); |
1025 | } |
1026 | #endif |
1027 | |
1028 | #if defined(__alpha__) |
1029 | static void |
1030 | alpha_bootblock_checksum(char *boot) |
1031 | { |
1032 | uint64_t *dp, sum; |
1033 | int i; |
1034 | |
1035 | dp = (uint64_t *)boot; |
1036 | sum = 0; |
1037 | for (i = 0; i < 63; i++) |
1038 | sum += dp[i]; |
1039 | dp[63] = sum; |
1040 | } |
1041 | #endif /* __alpha__ */ |
1042 | |
1043 | /* Undefine 'global' tricks */ |
1044 | #undef disklabelbuffer |
1045 | #undef xbsd_dlabel |
1046 | |
1047 | #endif /* OSF_LABEL */ |
1048 |