xref: /netbsd/usr.sbin/sysinst/label.c (revision c415ce7e)
1 /*	$NetBSD: label.c,v 1.48 2023/01/06 18:19:27 martin Exp $	*/
2 
3 /*
4  * Copyright 1997 Jonathan Stone
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *      This product includes software developed for the NetBSD Project by
18  *      Jonathan Stone.
19  * 4. The name of Jonathan Stone may not be used to endorse
20  *    or promote products derived from this software without specific prior
21  *    written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY JONATHAN STONE ``AS IS''
24  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
33  * THE POSSIBILITY OF SUCH DAMAGE.
34  *
35  */
36 
37 #include <sys/cdefs.h>
38 #if defined(LIBC_SCCS) && !defined(lint)
39 __RCSID("$NetBSD: label.c,v 1.48 2023/01/06 18:19:27 martin Exp $");
40 #endif
41 
42 #include <sys/types.h>
43 #include <stddef.h>
44 #include <assert.h>
45 #include <errno.h>
46 #include <stdio.h>
47 #include <fcntl.h>
48 #include <util.h>
49 #include <unistd.h>
50 #include <sys/dkio.h>
51 #include <sys/param.h>
52 #include <sys/bootblock.h>
53 #include <sys/bitops.h>
54 #include <ufs/ffs/fs.h>
55 
56 #include "defs.h"
57 #include "msg_defs.h"
58 #include "menu_defs.h"
59 
60 /*
61  * local prototypes
62  */
63 static bool boringpart(const struct disk_part_info *info);
64 static bool checklabel(struct disk_partitions*, char *, char *);
65 static void show_partition_adder(menudesc *, struct partition_usage_set*);
66 
67 /*
68  * Return 1 if a partition should be ignored when checking
69  * for overlapping partitions.
70  */
71 static bool
boringpart(const struct disk_part_info * info)72 boringpart(const struct disk_part_info *info)
73 {
74 
75 	if (info->size == 0)
76 		return true;
77 	if (info->flags & PTI_SPECIAL_PARTS)
78 		return true;
79 
80 	return false;
81 }
82 
83 /*
84  * We have some partitions in our "wanted" list that we may not edit,
85  * like the RAW_PART in disklabel, some that just represent external
86  * mount entries for the final fstab or similar.
87  * We have previously sorted pset->parts and pset->infos to be in sync,
88  * but the former "array" may be shorter.
89  * Here are a few quick predicates to check for them.
90  */
91 static bool
real_partition(const struct partition_usage_set * pset,int index)92 real_partition(const struct partition_usage_set *pset, int index)
93 {
94 	if (index < 0 || (size_t)index >= pset->num)
95 		return false;
96 
97 	return pset->infos[index].cur_part_id != NO_PART;
98 }
99 
100 /*
101  * Check partitioning for overlapping partitions.
102  * Returns true if no overlapping partition found.
103  * Sets reference arguments ovly1 and ovly2 to the indices of
104  * overlapping partitions if any are found.
105  */
106 static bool
checklabel(struct disk_partitions * parts,char * ovl1,char * ovl2)107 checklabel(struct disk_partitions *parts,
108     char *ovl1, char *ovl2)
109 {
110 	part_id i, j;
111 	struct disk_part_info info;
112 	daddr_t istart, iend, jstart, jend;
113 	unsigned int fs_type, fs_sub_type;
114 
115 	if (parts->num_part == 0)
116 		return true;
117 
118 	for (i = 0; i < parts->num_part - 1; i ++ ) {
119 		if (!parts->pscheme->get_part_info(parts, i, &info))
120 			continue;
121 
122 		/* skip unused or reserved partitions */
123 		if (boringpart(&info))
124 			continue;
125 
126 		/*
127 		 * check succeeding partitions for overlap.
128 		 * O(n^2), but n is small.
129 		 */
130 		istart = info.start;
131 		iend = istart + info.size;
132 		fs_type = info.fs_type;
133 		fs_sub_type = info.fs_sub_type;
134 
135 		for (j = i+1; j < parts->num_part; j++) {
136 
137 			if (!parts->pscheme->get_part_info(parts, j, &info))
138 				continue;
139 
140 			/* skip unused or reserved partitions */
141 			if (boringpart(&info))
142 				continue;
143 
144 			jstart = info.start;
145 			jend = jstart + info.size;
146 
147 			/* overlap? */
148 			if ((istart <= jstart && jstart < iend) ||
149 			    (jstart <= istart && istart < jend)) {
150 				snprintf(ovl1, MENUSTRSIZE,
151 				    "%" PRIu64 " - %" PRIu64 " %s, %s",
152 				    istart / sizemult, iend / sizemult,
153 				    multname,
154 				    getfslabelname(fs_type, fs_sub_type));
155 				snprintf(ovl2, MENUSTRSIZE,
156 				    "%" PRIu64 " - %" PRIu64 " %s, %s",
157 				    jstart / sizemult, jend / sizemult,
158 				    multname,
159 				    getfslabelname(info.fs_type,
160 				        info.fs_sub_type));
161 				return false;
162 			}
163 		}
164 	}
165 
166 	return true;
167 }
168 
169 int
checkoverlap(struct disk_partitions * parts)170 checkoverlap(struct disk_partitions *parts)
171 {
172 	char desc1[MENUSTRSIZE], desc2[MENUSTRSIZE];
173 	if (!checklabel(parts, desc1, desc2)) {
174 		msg_display_subst(MSG_partitions_overlap, 2, desc1, desc2);
175 		return 1;
176 	}
177 	return 0;
178 }
179 
180 /*
181  * return (see post_edit_verify):
182  *  0 -> abort
183  *  1 -> re-edit
184  *  2 -> continue installation
185  */
186 static int
verify_parts(struct partition_usage_set * pset,bool install)187 verify_parts(struct partition_usage_set *pset, bool install)
188 {
189 	struct part_usage_info *wanted;
190 	struct disk_partitions *parts;
191 	size_t i, num_root;
192 	daddr_t first_bsdstart, inst_start;
193 	int rv;
194 
195 	first_bsdstart = inst_start = -1;
196 	num_root = 0;
197 	parts = pset->parts;
198 	for (i = 0; i < pset->num; i++) {
199 		wanted = &pset->infos[i];
200 
201 		if (wanted->flags & PUIFLG_JUST_MOUNTPOINT)
202 			continue;
203 		if (wanted->cur_part_id == NO_PART)
204 			continue;
205 		if (!(wanted->instflags & PUIINST_MOUNT))
206 			continue;
207 		if (strcmp(wanted->mount, "/") != 0)
208 			continue;
209 		num_root++;
210 
211 		if (first_bsdstart <= 0) {
212 			first_bsdstart = wanted->cur_start;
213 		}
214 		if (inst_start < 0 &&
215 		    (wanted->cur_flags & PTI_INSTALL_TARGET)) {
216 			inst_start = wanted->cur_start;
217 		}
218 	}
219 
220 	if ((num_root == 0 && install) ||
221 	    (num_root > 1 && inst_start < 0)) {
222 		if (num_root == 0 && install)
223 			msg_display_subst(MSG_must_be_one_root, 2,
224 			    msg_string(parts->pscheme->name),
225 			    msg_string(parts->pscheme->short_name));
226 		else
227 			msg_display_subst(MSG_multbsdpart, 2,
228 			    msg_string(parts->pscheme->name),
229 			    msg_string(parts->pscheme->short_name));
230 		rv = ask_reedit(parts);
231 		if (rv != 2)
232 			return rv;
233 	}
234 
235 	/* Check for overlaps */
236 	if (checkoverlap(parts) != 0) {
237 		rv = ask_reedit(parts);
238 		if (rv != 2)
239 			return rv;
240 	}
241 
242 	/*
243 	 * post_edit_verify returns:
244 	 *  0 -> abort
245 	 *  1 -> re-edit
246 	 *  2 -> continue installation
247 	 */
248 	if (parts->pscheme->post_edit_verify)
249 		return parts->pscheme->post_edit_verify(parts, false);
250 
251 	return 2;
252 }
253 
254 static int
edit_fs_start(menudesc * m,void * arg)255 edit_fs_start(menudesc *m, void *arg)
256 {
257 	struct single_part_fs_edit *edit = arg;
258 	daddr_t start, end;
259 
260 	start = getpartoff(edit->pset->parts, edit->info.start);
261 	if (edit->info.size != 0) {
262 		if (start < (edit->info.start+edit->info.size)) {
263 			/* Try to keep end in the same place */
264 			end = edit->info.start + edit->info.size;
265 			if (end < start)
266 				edit->info.size = edit->pset->parts->pscheme->
267 				    max_free_space_at(edit->pset->parts,
268 				    edit->info.start);
269 			else
270 				edit->info.size = end - start;
271 		} else {
272 			edit->info.size = 0;
273 		}
274 	}
275 	edit->info.start = start;
276 	return 0;
277 }
278 
279 static int
edit_fs_size(menudesc * m,void * arg)280 edit_fs_size(menudesc *m, void *arg)
281 {
282 	struct single_part_fs_edit *edit = arg;
283 	struct disk_part_info pinfo;
284 	daddr_t size;
285 
286 	/* get original partition data, in case start moved already */
287 	if (!edit->pset->parts->pscheme->get_part_info(edit->pset->parts,
288 	    edit->id, &pinfo))
289 		pinfo = edit->info;
290 	/* ask for new size with old start and current values */
291 	size = getpartsize(edit->pset->parts, pinfo.start,
292 	    edit->info.start, edit->info.size);
293 	if (size < 0)
294 		return 0;
295 	if (size > edit->pset->parts->disk_size)
296 		size = edit->pset->parts->disk_size - edit->info.start;
297 	edit->info.size = size;
298 	return 0;
299 }
300 
301 static int
set_ffs_opt_pow2(menudesc * m,void * arg)302 set_ffs_opt_pow2(menudesc *m, void *arg)
303 {
304 	struct single_part_fs_edit *edit = arg;
305 	size_t val = 1 << (edit->offset+m->cursel);
306 
307 	if (edit->mode == 1) {
308 		edit->info.fs_opt1 = val;
309 		edit->wanted->fs_opt1 = val;
310 	} else if (edit->mode == 2) {
311 		edit->info.fs_opt2 = val;
312 		edit->wanted->fs_opt2 = val;
313 	}
314 	return 0;
315 }
316 
317 static int
edit_fs_ffs_opt(menudesc * m,void * arg,msg head,size_t min_val,size_t max_val)318 edit_fs_ffs_opt(menudesc *m, void *arg, msg head,
319     size_t min_val, size_t max_val)
320 {
321 	struct single_part_fs_edit *edit = arg;
322 	menu_ent opts[min(MAXPHYS/4096, 8)];
323 	char names[min(MAXPHYS/4096, 8)][20];
324 	size_t i, val;
325 	int menu;
326 
327 	edit->offset = ilog2(min_val);
328 	memset(opts, 0, sizeof opts);
329 	for (i = 0, val = min_val; val <= max_val; i++, val <<= 1) {
330 		snprintf(names[i], sizeof names[i], "%zu", val);
331 		opts[i].opt_name = names[i];
332 		opts[i].opt_action = set_ffs_opt_pow2;
333 		opts[i].opt_flags = OPT_EXIT;
334 	}
335 	menu = new_menu(head, opts, i, 40, 6, 0, 0, MC_NOEXITOPT,
336 	    NULL, NULL, NULL, NULL, NULL);
337 	if (menu < 0)
338 		return 1;
339 	process_menu(menu, arg);
340 	free_menu(menu);
341 	return 0;
342 }
343 
344 static int
edit_fs_ffs_block(menudesc * m,void * arg)345 edit_fs_ffs_block(menudesc *m, void *arg)
346 {
347 	struct single_part_fs_edit *edit = arg;
348 
349 	edit->mode = 1;		/* edit fs_opt1 */
350 	return edit_fs_ffs_opt(m, arg, MSG_Select_file_system_block_size,
351 	    4096, MAXPHYS);
352 }
353 
354 static int
edit_fs_ffs_frag(menudesc * m,void * arg)355 edit_fs_ffs_frag(menudesc *m, void *arg)
356 {
357 	struct single_part_fs_edit *edit = arg;
358 	size_t bsize, sec_size;
359 
360 	edit->mode = 2;		/* edit fs_opt2 */
361 	bsize = edit->info.fs_opt1;
362 	if (bsize == 0) {
363 		sec_size = edit->wanted->parts->bytes_per_sector;
364 		if (edit->wanted->size >= (daddr_t)(128L*(GIG/sec_size)))
365 			bsize = 32*1024;
366 		else if (edit->wanted->size >= (daddr_t)(1000L*(MEG/sec_size)))
367 			bsize = 16*1024;
368 		else if (edit->wanted->size >= (daddr_t)(20L*(MEG/sec_size)))
369 			bsize = 8*1024;
370 		else
371 			bsize = 4+1024;
372 	}
373 	return edit_fs_ffs_opt(m, arg, MSG_Select_file_system_fragment_size,
374 		bsize / 8, bsize);
375 }
376 
377 static int
edit_fs_ffs_avg_size(menudesc * m,void * arg)378 edit_fs_ffs_avg_size(menudesc *m, void *arg)
379 {
380 	struct single_part_fs_edit *edit = arg;
381 	char answer[12];
382 
383 	snprintf(answer, sizeof answer, "%u", edit->info.fs_opt3);
384 	msg_prompt_win(MSG_ptn_isize_prompt, -1, 18, 0, 0,
385 		answer, answer, sizeof answer);
386 	edit->info.fs_opt3 = atol(answer);
387 	edit->wanted->fs_opt3 = edit->info.fs_opt3;
388 
389 	return 0;
390 }
391 
392 static int
edit_fs_preserve(menudesc * m,void * arg)393 edit_fs_preserve(menudesc *m, void *arg)
394 {
395 	struct single_part_fs_edit *edit = arg;
396 
397 	edit->wanted->instflags ^= PUIINST_NEWFS;
398 	return 0;
399 }
400 
401 static int
edit_install(menudesc * m,void * arg)402 edit_install(menudesc *m, void *arg)
403 {
404 	struct single_part_fs_edit *edit = arg;
405 
406 	edit->info.flags ^= PTI_INSTALL_TARGET;
407 	return 0;
408 }
409 
410 static int
edit_fs_mount(menudesc * m,void * arg)411 edit_fs_mount(menudesc *m, void *arg)
412 {
413 	struct single_part_fs_edit *edit = arg;
414 
415 	edit->wanted->instflags ^= PUIINST_MOUNT;
416 	return 0;
417 }
418 
419 static int
edit_fs_mountpt(menudesc * m,void * arg)420 edit_fs_mountpt(menudesc *m, void *arg)
421 {
422 	struct single_part_fs_edit *edit = arg;
423 	char *p, *first, *last, buf[MOUNTLEN];
424 
425 	strlcpy(buf, edit->wanted->mount, sizeof buf);
426 	msg_prompt_win(MSG_mountpoint, -1, 18, 0, 0,
427 		buf, buf, MOUNTLEN);
428 
429 	/*
430 	 * Trim all leading and trailing whitespace
431 	 */
432 	for (first = NULL, last = NULL, p = buf; *p; p++) {
433 		if (isspace((unsigned char)*p))
434 			continue;
435 		if (first == NULL)
436 			first = p;
437 		last = p;
438 	}
439 	if (last != NULL)
440 		last[1] = 0;
441 
442 	if (first == NULL || *first == 0 || strcmp(first, "none") == 0) {
443 		edit->wanted->mount[0] = 0;
444 		edit->wanted->instflags &= ~PUIINST_MOUNT;
445 		return 0;
446 	}
447 
448 	if (*first != '/') {
449 		edit->wanted->mount[0] = '/';
450 		strlcpy(&edit->wanted->mount[1], first,
451 		    sizeof(edit->wanted->mount)-1);
452 	} else {
453 		strlcpy(edit->wanted->mount, first, sizeof edit->wanted->mount);
454 	}
455 
456 	return 0;
457 }
458 
459 static int
edit_restore(menudesc * m,void * arg)460 edit_restore(menudesc *m, void *arg)
461 {
462 	struct single_part_fs_edit *edit = arg;
463 
464 	edit->info = edit->old_info;
465 	*edit->wanted = edit->old_usage;
466 	return 0;
467 }
468 
469 static int
edit_cancel(menudesc * m,void * arg)470 edit_cancel(menudesc *m, void *arg)
471 {
472 	struct single_part_fs_edit *edit = arg;
473 
474 	edit->rv = -1;
475 	return 1;
476 }
477 
478 static int
edit_delete_ptn(menudesc * m,void * arg)479 edit_delete_ptn(menudesc *m, void *arg)
480 {
481 	struct single_part_fs_edit *edit = arg;
482 
483 	edit->rv = -2;
484 	return 1;
485 }
486 
487 /*
488  * We have added/removed partitions, all cur_part_id values are
489  * out of sync. Re-fetch and reorder partitions accordingly.
490  */
491 static void
renumber_partitions(struct partition_usage_set * pset)492 renumber_partitions(struct partition_usage_set *pset)
493 {
494 	struct part_usage_info *ninfos;
495 	struct disk_part_info info;
496 	size_t i;
497 	part_id pno;
498 
499 	ninfos = calloc(pset->parts->num_part, sizeof(*ninfos));
500 	if (ninfos == NULL) {
501 		err_msg_win(err_outofmem);
502 		return;
503 	}
504 
505 	for (pno = 0; pno < pset->parts->num_part; pno++) {
506 		if (!pset->parts->pscheme->get_part_info(pset->parts, pno,
507 		    &info))
508 			continue;
509 		for (i = 0; i < pset->num; i++) {
510 			if (pset->infos[i].cur_start != info.start)
511 				continue;
512 			if (pset->infos[i].cur_flags != info.flags)
513 				continue;
514 			if ((info.flags & PTI_SPECIAL_PARTS) !=
515 			    (pset->infos[i].flags & PTI_SPECIAL_PARTS))
516 				continue;
517 			if ((info.fs_type != FS_UNUSED &&
518 			    info.fs_type == pset->infos[i].fs_type) ||
519 			    (pset->infos[i].type ==
520 			    info.nat_type->generic_ptype)) {
521 				memcpy(&ninfos[pno], &pset->infos[i],
522 				    sizeof(ninfos[pno]));
523 				ninfos[pno].cur_part_id = pno;
524 				break;
525 			}
526 		}
527 	}
528 
529 	free(pset->infos);
530 	pset->infos = ninfos;
531 	pset->num = pset->parts->num_part;
532 }
533 
534 /*
535  * Most often used file system types, we offer them in a first level menu.
536  */
537 static const uint edit_fs_common_types[] =
538     { FS_BSDFFS, FS_SWAP, FS_MSDOS, FS_EFI_SP, FS_BSDLFS, FS_EX2FS };
539 
540 /*
541  * Functions for uncommon file system types - we offer the full list,
542  * but put FFSv2 and FFSv1 at the front and duplicate FS_MSDOS as
543  * EFI system partition.
544  */
545 static void
init_fs_type_ext(menudesc * menu,void * arg)546 init_fs_type_ext(menudesc *menu, void *arg)
547 {
548 	struct single_part_fs_edit *edit = arg;
549 	uint t = edit->info.fs_type;
550 	size_t i, ndx, max = menu->numopts;
551 
552 	if (t == FS_BSDFFS) {
553 		if (edit->info.fs_sub_type == 3)
554 			menu->cursel = 0;
555 		else if (edit->info.fs_sub_type == 2)
556 			menu->cursel = 1;
557 		else
558 			menu->cursel = 2;
559 		return;
560 	} else if (t == FS_EX2FS && edit->info.fs_sub_type == 1) {
561 		menu->cursel = FSMAXTYPES+2;
562 		return;
563 	}
564 	/* skip the two FFS entries, and do not add FFS later again */
565 	for (ndx = 3, i = 0; i < FSMAXTYPES && ndx < max; i++) {
566 		if (i == FS_UNUSED)
567 			continue;
568 		if (i == FS_BSDFFS)
569 			continue;
570 		if (fstypenames[i] == NULL)
571 			continue;
572 
573 		if (i == t) {
574 			menu->cursel = ndx;
575 			break;
576 		}
577 		if (i == FS_MSDOS) {
578 			ndx++;
579 			if (t == FS_EFI_SP) {
580 				menu->cursel = ndx;
581 				break;
582 			}
583 		}
584 		ndx++;
585 	}
586 }
587 
588 static int
set_fstype_ext(menudesc * menu,void * arg)589 set_fstype_ext(menudesc *menu, void *arg)
590 {
591 	struct single_part_fs_edit *edit = arg;
592 	size_t i, ndx, max = menu->numopts;
593 	enum part_type pt;
594 
595 	if (menu->cursel >= 0 && menu->cursel <= 2) {
596 		edit->info.fs_type = FS_BSDFFS;
597 		edit->info.fs_sub_type = 3-menu->cursel;
598 		goto found_type;
599 	} else if (menu->cursel == FSMAXTYPES+2) {
600 		edit->info.fs_type = FS_EX2FS;
601 		edit->info.fs_sub_type = 1;
602 		goto found_type;
603 	}
604 
605 	for (ndx = 3, i = 0; i < FSMAXTYPES && ndx < max; i++) {
606 		if (i == FS_UNUSED)
607 			continue;
608 		if (i == FS_BSDFFS)
609 			continue;
610 		if (fstypenames[i] == NULL)
611 			continue;
612 
613 		if (ndx == (size_t)menu->cursel) {
614 			edit->info.fs_type = i;
615 			edit->info.fs_sub_type = 0;
616 			goto found_type;
617 		}
618 		ndx++;
619 		if (i == FS_MSDOS) {
620 			if (ndx == (size_t)menu->cursel) {
621 				edit->info.fs_type = FS_EFI_SP;
622 				edit->info.fs_sub_type = 0;
623 				goto found_type;
624 			}
625 			ndx++;
626 		}
627 	}
628 	return 1;
629 
630 found_type:
631 	pt = edit->info.nat_type ? edit->info.nat_type->generic_ptype : PT_root;
632 	edit->info.nat_type = edit->pset->parts->pscheme->
633 	    get_fs_part_type(pt, edit->info.fs_type, edit->info.fs_sub_type);
634 	if (edit->info.nat_type == NULL)
635 		edit->info.nat_type = edit->pset->parts->pscheme->
636 		    get_generic_part_type(PT_root);
637 	edit->wanted->type = edit->info.nat_type->generic_ptype;
638 	edit->wanted->fs_type = edit->info.fs_type;
639 	edit->wanted->fs_version = edit->info.fs_sub_type;
640 	return 1;
641 }
642 
643 /*
644  * Offer a menu with "exotic" file system types, start with FFSv2 and FFSv1,
645  * skip later FFS entry in the generic list.
646  */
647 static int
edit_fs_type_ext(menudesc * menu,void * arg)648 edit_fs_type_ext(menudesc *menu, void *arg)
649 {
650 	menu_ent *opts;
651 	int m;
652 	size_t i, ndx, cnt;
653 
654 	cnt = __arraycount(fstypenames)+2;
655 	opts = calloc(cnt, sizeof(*opts));
656 	if (opts == NULL)
657 		return 1;
658 
659 	ndx = 0;
660 	opts[ndx].opt_name = msg_string(MSG_fs_type_ffsv2ea);
661 	opts[ndx].opt_action = set_fstype_ext;
662 	ndx++;
663 	opts[ndx].opt_name = msg_string(MSG_fs_type_ffsv2);
664 	opts[ndx].opt_action = set_fstype_ext;
665 	ndx++;
666 	opts[ndx].opt_name = msg_string(MSG_fs_type_ffs);
667 	opts[ndx].opt_action = set_fstype_ext;
668 	ndx++;
669 	for (i = 0; i < FSMAXTYPES && ndx < cnt; i++) {
670 		if (i == FS_UNUSED)
671 			continue;
672 		if (i == FS_BSDFFS)
673 			continue;
674 		if (fstypenames[i] == NULL)
675 			continue;
676 		opts[ndx].opt_name = fstypenames[i];
677 		opts[ndx].opt_action = set_fstype_ext;
678 		ndx++;
679 		if (i == FS_MSDOS) {
680 			opts[ndx] = opts[ndx-1];
681 			opts[ndx].opt_name = getfslabelname(FS_EFI_SP, 0);
682 			ndx++;
683 		}
684 	}
685 	opts[ndx].opt_name = msg_string(MSG_fs_type_ext2old);
686 	opts[ndx].opt_action = set_fstype_ext;
687 	ndx++;
688 	assert(ndx == cnt);
689 	m = new_menu(MSG_Select_the_type, opts, ndx,
690 		30, 6, 10, 0, MC_SUBMENU | MC_SCROLL,
691 		init_fs_type_ext, NULL, NULL, NULL, MSG_unchanged);
692 
693 	if (m < 0)
694 		return 1;
695 	process_menu(m, arg);
696 	free_menu(m);
697 	free(opts);
698 
699 	return 1;
700 }
701 
702 static void
init_fs_type(menudesc * menu,void * arg)703 init_fs_type(menudesc *menu, void *arg)
704 {
705 	struct single_part_fs_edit *edit = arg;
706 	size_t i;
707 
708 	/* init menu->cursel from fs type in arg */
709 	if (edit->info.fs_type == FS_BSDFFS) {
710 		if (edit->info.fs_sub_type == 3)
711 			menu->cursel = 0;
712 		else if (edit->info.fs_sub_type == 2)
713 			menu->cursel = 1;
714 		else
715 			menu->cursel = 2;
716 	}
717 	for (i = 1; i < __arraycount(edit_fs_common_types); i++) {
718 		if (edit->info.fs_type == edit_fs_common_types[i]) {
719 			menu->cursel = i+2;
720 			break;
721 		}
722 	}
723 }
724 
725 static int
set_fstype(menudesc * menu,void * arg)726 set_fstype(menudesc *menu, void *arg)
727 {
728 	struct single_part_fs_edit *edit = arg;
729 	enum part_type pt;
730 	int ndx;
731 
732 	pt = edit->info.nat_type ? edit->info.nat_type->generic_ptype : PT_root;
733 	if (menu->cursel < 3) {
734 		edit->info.fs_type = FS_BSDFFS;
735 		edit->info.fs_sub_type = 3-menu->cursel;
736 		edit->info.nat_type = edit->pset->parts->pscheme->
737 		    get_fs_part_type(pt, FS_BSDFFS, edit->info.fs_sub_type);
738 		if (edit->info.nat_type == NULL)
739 			edit->info.nat_type = edit->pset->parts->
740 			    pscheme->get_generic_part_type(PT_root);
741 		edit->wanted->type = edit->info.nat_type->generic_ptype;
742 		edit->wanted->fs_type = edit->info.fs_type;
743 		edit->wanted->fs_version = edit->info.fs_sub_type;
744 		return 1;
745 	}
746 	ndx = menu->cursel-2;
747 
748 	if (ndx < 0 ||
749 	    (size_t)ndx >= __arraycount(edit_fs_common_types))
750 		return 1;
751 
752 	edit->info.fs_type = edit_fs_common_types[ndx];
753 	edit->info.fs_sub_type = 0;
754 	edit->info.nat_type = edit->pset->parts->pscheme->
755 	    get_fs_part_type(pt, edit->info.fs_type, 0);
756 	if (edit->info.nat_type == NULL)
757 		edit->info.nat_type = edit->pset->parts->
758 		    pscheme->get_generic_part_type(PT_root);
759 	edit->wanted->type = edit->info.nat_type->generic_ptype;
760 	edit->wanted->fs_type = edit->info.fs_type;
761 	edit->wanted->fs_version = edit->info.fs_sub_type;
762 	return 1;
763 }
764 
765 /*
766  * Offer a menu selecting the common file system types
767  */
768 static int
edit_fs_type(menudesc * menu,void * arg)769 edit_fs_type(menudesc *menu, void *arg)
770 {
771 	struct single_part_fs_edit *edit = arg;
772 	menu_ent *opts;
773 	int m, cnt;
774 	size_t i;
775 
776 	/*
777 	 * Shortcut to full menu if we have an exotic value
778 	 */
779 	if (edit->info.fs_type == FS_EX2FS && edit->info.fs_sub_type == 1) {
780 		edit_fs_type_ext(menu, arg);
781 		return 0;
782 	}
783 	for (i = 0; i < __arraycount(edit_fs_common_types); i++)
784 		if (edit->info.fs_type == edit_fs_common_types[i])
785 			break;
786 	if (i >= __arraycount(edit_fs_common_types)) {
787 		edit_fs_type_ext(menu, arg);
788 		return 0;
789 	}
790 
791 	/*
792 	 * Starting with a common type, show short menu first
793 	 */
794 	cnt = __arraycount(edit_fs_common_types) + 3;
795 	opts = calloc(cnt, sizeof(*opts));
796 	if (opts == NULL)
797 		return 0;
798 
799 	/* special case entry 0 - 2: three FFS entries */
800 	for (i = 0; i < __arraycount(edit_fs_common_types); i++) {
801 		opts[i+2].opt_name = getfslabelname(edit_fs_common_types[i], 0);
802 		opts[i+2].opt_action = set_fstype;
803 	}
804 	/* duplicate FFS (at offset 2) into first two entries */
805 	opts[0] = opts[1] = opts[2];
806 	opts[0].opt_name = msg_string(MSG_fs_type_ffsv2ea);
807 	opts[1].opt_name = msg_string(MSG_fs_type_ffsv2);
808 	opts[2].opt_name = msg_string(MSG_fs_type_ffs);
809 	/* add secondary sub-menu */
810 	assert(i+2 < (size_t)cnt);
811 	opts[i+2].opt_name = msg_string(MSG_other_fs_type);
812 	opts[i+2].opt_action = edit_fs_type_ext;
813 
814 	m = new_menu(MSG_Select_the_type, opts, cnt,
815 		30, 6, 0, 0, MC_SUBMENU | MC_SCROLL,
816 		init_fs_type, NULL, NULL, NULL, MSG_unchanged);
817 
818 	if (m < 0)
819 		return 0;
820 	process_menu(m, arg);
821 	free_menu(m);
822 	free(opts);
823 
824 	return 0;
825 }
826 
827 
828 static void update_edit_ptn_menu(menudesc *m, void *arg);
829 static void draw_edit_ptn_line(menudesc *m, int opt, void *arg);
830 static int edit_ptn_custom_type(menudesc *m, void *arg);
831 
832 static void
remember_deleted(struct partition_usage_set * pset,struct disk_partitions * parts)833 remember_deleted(struct partition_usage_set *pset,
834     struct disk_partitions *parts)
835 {
836 	size_t i, num;
837 	struct disk_partitions **tab;
838 
839 	/* do we have parts on record already? */
840 	for (i = 0; i < pset->num_write_back; i++)
841 		if (pset->write_back[i] == parts)
842 			return;
843 	/*
844 	 * Need to record this partition table for write back
845 	 */
846 	num = pset->num_write_back + 1;
847 	tab = realloc(pset->write_back, num*sizeof(*pset->write_back));
848 	if (!tab)
849 		return;
850 	tab[pset->num_write_back] = parts;
851 	pset->write_back = tab;
852 	pset->num_write_back = num;
853 }
854 
855 int
edit_ptn(menudesc * menu,void * arg)856 edit_ptn(menudesc *menu, void *arg)
857 {
858 	struct partition_usage_set *pset = arg;
859 	struct single_part_fs_edit edit;
860 	int fspart_menu, num_opts;
861 	const char *err;
862 	menu_ent *mopts, *popt;
863 	bool is_new_part, with_inst_opt = pset->parts->parent == NULL;
864 
865 	static const menu_ent edit_ptn_fields_head[] = {
866 		{ .opt_action=edit_fs_type },
867 		{ .opt_action=edit_fs_start },
868 		{ .opt_action=edit_fs_size },
869 		{ .opt_flags=OPT_IGNORE },
870 	};
871 
872 	static const menu_ent edit_ptn_fields_head_add[] = {
873 		{ .opt_action=edit_install },
874 	};
875 
876 	static const menu_ent edit_ptn_fields_head2[] = {
877 		{ .opt_action=edit_fs_preserve },
878 		{ .opt_action=edit_fs_mount },
879 		{ .opt_menu=MENU_mountoptions, .opt_flags=OPT_SUB },
880 		{ .opt_action=edit_fs_mountpt },
881 	};
882 
883 	static const menu_ent edit_ptn_fields_ffs[] = {
884 		{ .opt_action=edit_fs_ffs_avg_size },
885 		{ .opt_action=edit_fs_ffs_block },
886 		{ .opt_action=edit_fs_ffs_frag },
887 	};
888 
889 	static const menu_ent edit_ptn_fields_tail[] = {
890 		{ .opt_name=MSG_askunits, .opt_menu=MENU_sizechoice,
891 		  .opt_flags=OPT_SUB },
892 		{ .opt_name=MSG_restore,
893 		  .opt_action=edit_restore},
894 		{ .opt_name=MSG_Delete_partition,
895 		  .opt_action=edit_delete_ptn},
896 		{ .opt_name=MSG_cancel,
897 		  .opt_action=edit_cancel},
898 	};
899 
900 	memset(&edit, 0, sizeof edit);
901 	edit.pset = pset;
902 	edit.index = menu->cursel;
903 	edit.wanted = &pset->infos[edit.index];
904 
905 	if (menu->cursel < 0 || (size_t)menu->cursel > pset->parts->num_part)
906 		return 0;
907 	is_new_part = (size_t)menu->cursel == pset->parts->num_part;
908 
909 	num_opts = __arraycount(edit_ptn_fields_head) +
910 	    __arraycount(edit_ptn_fields_head2) +
911 	    __arraycount(edit_ptn_fields_tail);
912 	if (edit.wanted->fs_type == FS_BSDFFS ||
913 	    edit.wanted->fs_type == FS_BSDLFS)
914 		num_opts += __arraycount(edit_ptn_fields_ffs);
915 	if (with_inst_opt)
916 		num_opts += __arraycount(edit_ptn_fields_head_add);
917 	if (is_new_part)
918 		num_opts--;
919 	else
920 		num_opts += pset->parts->pscheme->custom_attribute_count;
921 
922 	mopts = calloc(num_opts, sizeof(*mopts));
923 	if (mopts == NULL) {
924 		err_msg_win(err_outofmem);
925 		return 0;
926 	}
927 	memcpy(mopts, edit_ptn_fields_head, sizeof(edit_ptn_fields_head));
928 	popt = mopts + __arraycount(edit_ptn_fields_head);
929 	if (with_inst_opt) {
930 		memcpy(popt, edit_ptn_fields_head_add,
931 		    sizeof(edit_ptn_fields_head_add));
932 		popt +=  __arraycount(edit_ptn_fields_head_add);
933 	}
934 	memcpy(popt, edit_ptn_fields_head2, sizeof(edit_ptn_fields_head2));
935 	popt +=  __arraycount(edit_ptn_fields_head2);
936 	if (edit.wanted->fs_type == FS_BSDFFS ||
937 	    edit.wanted->fs_type == FS_BSDLFS) {
938 		memcpy(popt, edit_ptn_fields_ffs, sizeof(edit_ptn_fields_ffs));
939 		popt +=  __arraycount(edit_ptn_fields_ffs);
940 	}
941 	edit.first_custom_attr = popt - mopts;
942 	if (!is_new_part) {
943 		for (size_t i = 0;
944 		    i < pset->parts->pscheme->custom_attribute_count;
945 		    i++, popt++) {
946 			popt->opt_action = edit_ptn_custom_type;
947 		}
948 	}
949 	memcpy(popt, edit_ptn_fields_tail, sizeof(edit_ptn_fields_tail));
950 	popt += __arraycount(edit_ptn_fields_tail) - 1;
951 	if (is_new_part)
952 		memcpy(popt-1, popt, sizeof(*popt));
953 
954 	if (is_new_part) {
955 		struct disk_part_free_space space;
956 		daddr_t align = pset->parts->pscheme->get_part_alignment(
957 		    pset->parts);
958 
959 		edit.id = NO_PART;
960 		if (pset->parts->pscheme->get_free_spaces(pset->parts,
961 		    &space, 1, align, align, -1, -1) == 1) {
962 			edit.info.start = space.start;
963 			edit.info.size = space.size;
964 			edit.info.fs_type = FS_BSDFFS;
965 			edit.info.fs_sub_type = 2;
966 			edit.info.nat_type = pset->parts->pscheme->
967 			    get_fs_part_type(PT_root, edit.info.fs_type,
968 			    edit.info.fs_sub_type);
969 			edit.wanted->instflags = PUIINST_NEWFS;
970 		}
971 	} else {
972 		edit.id = pset->infos[edit.index].cur_part_id;
973 		if (!pset->parts->pscheme->get_part_info(pset->parts, edit.id,
974 		    &edit.info)) {
975 			free(mopts);
976 			return 0;
977 		}
978 	}
979 
980 	edit.old_usage = *edit.wanted;
981 	edit.old_info = edit.info;
982 
983 	fspart_menu = new_menu(MSG_edfspart, mopts, num_opts,
984 		15, 2, 0, 55, MC_NOCLEAR | MC_SCROLL,
985 		update_edit_ptn_menu, draw_edit_ptn_line, NULL,
986 		NULL, MSG_OK);
987 
988 	process_menu(fspart_menu, &edit);
989 	free(mopts);
990 	free_menu(fspart_menu);
991 
992 	if (edit.rv == 0) {	/* OK, set new data */
993 		edit.info.last_mounted = edit.wanted->mount;
994 		if (is_new_part) {
995 			edit.wanted->parts = pset->parts;
996 			if (!can_newfs_fstype(edit.info.fs_type))
997 				edit.wanted->instflags &= ~PUIINST_NEWFS;
998 			edit.wanted->cur_part_id = pset->parts->pscheme->
999 			    add_partition(pset->parts, &edit.info, &err);
1000 			if (edit.wanted->cur_part_id == NO_PART)
1001 				err_msg_win(err);
1002 			else {
1003 				pset->parts->pscheme->get_part_info(
1004 				    pset->parts, edit.wanted->cur_part_id,
1005 				    &edit.info);
1006 				edit.wanted->cur_start = edit.info.start;
1007 				edit.wanted->size = edit.info.size;
1008 				edit.wanted->type =
1009 				    edit.info.nat_type->generic_ptype;
1010 				edit.wanted->fs_type = edit.info.fs_type;
1011 				edit.wanted->fs_version = edit.info.fs_sub_type;
1012 				edit.wanted->cur_flags = edit.info.flags;
1013 				/* things have changed, re-sort */
1014 				renumber_partitions(pset);
1015 			}
1016 		} else {
1017 			if (!pset->parts->pscheme->set_part_info(pset->parts,
1018 			    edit.id, &edit.info, &err))
1019 				err_msg_win(err);
1020 			else
1021 				pset->cur_free_space += edit.old_info.size -
1022 				    edit.info.size;
1023 		}
1024 
1025 		/*
1026 		 * if size has changed, we may need to add or remove
1027 		 * the option to add partitions
1028 		 */
1029 		show_partition_adder(menu, pset);
1030 	} else if (edit.rv == -1) {	/* cancel edit */
1031 		if (is_new_part) {
1032 			memmove(pset->infos+edit.index,
1033 			    pset->infos+edit.index+1,
1034 			    sizeof(*pset->infos)*(pset->num-edit.index));
1035 			memmove(menu->opts+edit.index,
1036 			    menu->opts+edit.index+1,
1037 			    sizeof(*menu->opts)*(menu->numopts-edit.index));
1038 			menu->numopts--;
1039 			menu->cursel = 0;
1040 			pset->num--;
1041 			return -1;
1042 		}
1043 		pset->infos[edit.index] = edit.old_usage;
1044 	} else if (!is_new_part && edit.rv == -2) {	/* delete partition */
1045 		if (!pset->parts->pscheme->delete_partition(pset->parts,
1046 		    edit.id, &err)) {
1047 			err_msg_win(err);
1048 			return 0;
1049 		}
1050 		remember_deleted(pset,
1051 		    pset->infos[edit.index].parts);
1052 		pset->cur_free_space += edit.info.size;
1053 		memmove(pset->infos+edit.index,
1054 		    pset->infos+edit.index+1,
1055 		    sizeof(*pset->infos)*(pset->num-edit.index));
1056 		memmove(menu->opts+edit.index,
1057 		    menu->opts+edit.index+1,
1058 		    sizeof(*menu->opts)*(menu->numopts-edit.index));
1059 		menu->numopts--;
1060 		menu->cursel = 0;
1061 		if (pset->parts->num_part == 0)
1062 			menu->cursel = 1;	/* skip sentinel line */
1063 
1064 		/* things have changed, re-sort */
1065 		pset->num--;
1066 		renumber_partitions(pset);
1067 
1068 		/* we can likely add new partitions now */
1069 		show_partition_adder(menu, pset);
1070 
1071 		return -1;
1072 	}
1073 
1074 	return 0;
1075 }
1076 
1077 static void
update_edit_ptn_menu(menudesc * m,void * arg)1078 update_edit_ptn_menu(menudesc *m, void *arg)
1079 {
1080 	struct single_part_fs_edit *edit = arg;
1081 	int i;
1082 	uint t = edit->info.fs_type;
1083 	size_t attr_no;
1084 
1085 	/* Determine which of the properties can be changed */
1086 	for (i = 0; i < m->numopts; i++) {
1087 		if (m->opts[i].opt_action == NULL &&
1088 		    m->opts[i].opt_menu != MENU_mountoptions)
1089 			continue;
1090 
1091 		/* Default to disabled... */
1092 		m->opts[i].opt_flags |= OPT_IGNORE;
1093 		if ((t == FS_UNUSED || t == FS_SWAP) &&
1094 		    (m->opts[i].opt_action == edit_fs_preserve ||
1095 		     m->opts[i].opt_action == edit_fs_mount ||
1096 		     m->opts[i].opt_action == edit_fs_mountpt ||
1097 		     m->opts[i].opt_menu == MENU_mountoptions))
1098 			continue;
1099 		if (m->opts[i].opt_action == edit_install &&
1100 		    edit->info.nat_type &&
1101 		    edit->info.nat_type->generic_ptype != PT_root)
1102 			/* can only install onto PT_root partitions */
1103 			continue;
1104 		if (m->opts[i].opt_action == edit_fs_preserve &&
1105 		    !can_newfs_fstype(t)) {
1106 			/* Can not newfs this filesystem */
1107 			edit->wanted->instflags &= ~PUIINST_NEWFS;
1108 			continue;
1109 		}
1110 		if (m->opts[i].opt_action == edit_ptn_custom_type) {
1111 			attr_no = (size_t)i - edit->first_custom_attr;
1112 			if (!edit->pset->parts->pscheme->
1113 			    custom_attribute_writable(
1114 			    edit->pset->parts, edit->id, attr_no))
1115 				continue;
1116 		}
1117 		/*
1118 		 * Do not allow editing of size/start/type when partition
1119 		 * is defined in some outer partition table already
1120 		 */
1121 		if ((edit->pset->infos[edit->index].flags & PUIFLG_IS_OUTER)
1122 		    && (m->opts[i].opt_action == edit_fs_type
1123 			|| m->opts[i].opt_action == edit_fs_start
1124 			|| m->opts[i].opt_action == edit_fs_size))
1125 				continue;
1126 		/* Ok: we want this one */
1127 		m->opts[i].opt_flags &= ~OPT_IGNORE;
1128 	}
1129 
1130 	/* Avoid starting at a (now) disabled menu item */
1131 	while (m->cursel >= 0 && m->cursel < m->numopts
1132 	    && (m->opts[m->cursel].opt_flags & OPT_IGNORE))
1133 		m->cursel++;
1134 }
1135 
1136 static void
draw_edit_ptn_line(menudesc * m,int opt,void * arg)1137 draw_edit_ptn_line(menudesc *m, int opt, void *arg)
1138 {
1139 	struct single_part_fs_edit *edit = arg;
1140 	static int col_width;
1141 	static const char *ptn_type, *ptn_start, *ptn_size, *ptn_end,
1142 	     *ptn_newfs, *ptn_mount, *ptn_mount_options, *ptn_mountpt,
1143 	     *ptn_install, *ptn_bsize, *ptn_fsize, *ptn_isize;
1144 	const char *c;
1145 	char val[MENUSTRSIZE];
1146 	const char *attrname;
1147 	size_t attr_no;
1148 
1149 	if (col_width == 0) {
1150 		int l;
1151 
1152 #define	LOAD(STR)	STR = msg_string(MSG_##STR); l = strlen(STR); \
1153 			if (l > col_width) col_width = l
1154 
1155 		LOAD(ptn_type);
1156 		LOAD(ptn_start);
1157 		LOAD(ptn_size);
1158 		LOAD(ptn_end);
1159 		LOAD(ptn_install);
1160 		LOAD(ptn_newfs);
1161 		LOAD(ptn_mount);
1162 		LOAD(ptn_mount_options);
1163 		LOAD(ptn_mountpt);
1164 		LOAD(ptn_bsize);
1165 		LOAD(ptn_fsize);
1166 		LOAD(ptn_isize);
1167 #undef LOAD
1168 
1169 		for (size_t i = 0;
1170 		    i < edit->pset->parts->pscheme->custom_attribute_count;
1171 		    i++) {
1172 			attrname = msg_string(
1173 			    edit->pset->parts->pscheme->custom_attributes[i]
1174 			    .label);
1175 			l = strlen(attrname);
1176 			if (l > col_width) col_width = l;
1177 		}
1178 
1179 		col_width += 3;
1180 	}
1181 
1182 	if (m->opts[opt].opt_flags & OPT_IGNORE
1183 	    && (opt != 3 || edit->info.fs_type == FS_UNUSED)
1184 	    && m->opts[opt].opt_action != edit_ptn_custom_type
1185 	    && m->opts[opt].opt_action != edit_fs_type
1186 	    && m->opts[opt].opt_action != edit_fs_start
1187 	    && m->opts[opt].opt_action != edit_fs_size) {
1188 		wprintw(m->mw, "%*s -", col_width, "");
1189 		return;
1190 	}
1191 
1192 	if (opt < 4) {
1193 		switch (opt) {
1194 		case 0:
1195 			if (edit->info.fs_type == FS_BSDFFS) {
1196 				if (edit->info.fs_sub_type == 3)
1197 					c = msg_string(MSG_fs_type_ffsv2ea);
1198 				else if (edit->info.fs_sub_type == 2)
1199 					c = msg_string(MSG_fs_type_ffsv2);
1200 				else
1201 					c = msg_string(MSG_fs_type_ffs);
1202 			} else {
1203 				c = getfslabelname(edit->info.fs_type,
1204 				    edit->info.fs_sub_type);
1205 			}
1206 			wprintw(m->mw, "%*s : %s", col_width, ptn_type, c);
1207 			return;
1208 		case 1:
1209 			wprintw(m->mw, "%*s : %" PRIu64 " %s", col_width,
1210 			    ptn_start, edit->info.start / sizemult, multname);
1211 			return;
1212 		case 2:
1213 			wprintw(m->mw, "%*s : %" PRIu64 " %s", col_width,
1214 			    ptn_size, edit->info.size / sizemult, multname);
1215 			return;
1216 		case 3:
1217 			wprintw(m->mw, "%*s : %" PRIu64 " %s", col_width,
1218 			    ptn_end, (edit->info.start + edit->info.size)
1219 			    / sizemult, multname);
1220 			return;
1221 		 }
1222 	}
1223 	if (m->opts[opt].opt_action == edit_install) {
1224 		wprintw(m->mw, "%*s : %s", col_width, ptn_install,
1225 			msg_string((edit->info.flags & PTI_INSTALL_TARGET)
1226 			    ? MSG_Yes : MSG_No));
1227 		return;
1228 	}
1229 	if (m->opts[opt].opt_action == edit_fs_preserve) {
1230 		wprintw(m->mw, "%*s : %s", col_width, ptn_newfs,
1231 			msg_string(edit->wanted->instflags & PUIINST_NEWFS
1232 			    ? MSG_Yes : MSG_No));
1233 		return;
1234 	}
1235 	if (m->opts[opt].opt_action == edit_fs_mount) {
1236 		wprintw(m->mw, "%*s : %s", col_width, ptn_mount,
1237 			msg_string(edit->wanted->instflags & PUIINST_MOUNT
1238 			    ? MSG_Yes : MSG_No));
1239 		return;
1240 	}
1241 	if (m->opts[opt].opt_action == edit_fs_ffs_block) {
1242 		wprintw(m->mw, "%*s : %u", col_width, ptn_bsize,
1243 			edit->wanted->fs_opt1);
1244 		return;
1245 	}
1246 	if (m->opts[opt].opt_action == edit_fs_ffs_frag) {
1247 		wprintw(m->mw, "%*s : %u", col_width, ptn_fsize,
1248 			edit->wanted->fs_opt2);
1249 		return;
1250 	}
1251 	if (m->opts[opt].opt_action == edit_fs_ffs_avg_size) {
1252 		if (edit->wanted->fs_opt3 == 0)
1253 			wprintw(m->mw, "%*s : %s", col_width, ptn_isize,
1254 				msg_string(MSG_ptn_isize_dflt));
1255 		else {
1256         	        char buf[24], *line;
1257 			const char *t = buf;
1258 
1259 			snprintf(buf, sizeof buf, "%u", edit->wanted->fs_opt3);
1260 			line = str_arg_subst(msg_string(MSG_ptn_isize_bytes),
1261 			    1, &t);
1262 			wprintw(m->mw, "%*s : %s", col_width, ptn_isize,
1263 				line);
1264 			free(line);
1265 		}
1266 		return;
1267 	}
1268 	if (m->opts[opt].opt_menu == MENU_mountoptions) {
1269 		wprintw(m->mw, "%*s : ", col_width, ptn_mount_options);
1270 		if (edit->wanted->mountflags & PUIMNT_ASYNC)
1271 			wprintw(m->mw, "async ");
1272 		if (edit->wanted->mountflags & PUIMNT_NOATIME)
1273 			wprintw(m->mw, "noatime ");
1274 		if (edit->wanted->mountflags & PUIMNT_NODEV)
1275 			wprintw(m->mw, "nodev ");
1276 		if (edit->wanted->mountflags & PUIMNT_NODEVMTIME)
1277 			wprintw(m->mw, "nodevmtime ");
1278 		if (edit->wanted->mountflags & PUIMNT_NOEXEC)
1279 			wprintw(m->mw, "noexec ");
1280 		if (edit->wanted->mountflags & PUIMNT_NOSUID)
1281 			wprintw(m->mw, "nosuid ");
1282 		if (edit->wanted->mountflags & PUIMNT_LOG)
1283 			wprintw(m->mw, "log ");
1284 		if (edit->wanted->mountflags & PUIMNT_NOAUTO)
1285 			wprintw(m->mw, "noauto  ");
1286 		return;
1287 	}
1288 	if (m->opts[opt].opt_action == edit_fs_mountpt) {
1289 		wprintw(m->mw, "%*s : %s", col_width, ptn_mountpt,
1290 		    edit->wanted->mount);
1291 		return;
1292 	}
1293 
1294 	attr_no = opt - edit->first_custom_attr;
1295 	edit->pset->parts->pscheme->format_custom_attribute(
1296 	    edit->pset->parts, edit->id, attr_no, &edit->info,
1297 	    val, sizeof val);
1298 	attrname = msg_string(edit->pset->parts->pscheme->
1299 	    custom_attributes[attr_no].label);
1300 	wprintw(m->mw, "%*s : %s", col_width, attrname, val);
1301 }
1302 
1303 static int
edit_ptn_custom_type(menudesc * m,void * arg)1304 edit_ptn_custom_type(menudesc *m, void *arg)
1305 {
1306 	struct single_part_fs_edit *edit = arg;
1307 	size_t attr_no = m->cursel - edit->first_custom_attr;
1308 	char line[STRSIZE];
1309 
1310 	switch (edit->pset->parts->pscheme->custom_attributes[attr_no].type) {
1311 	case pet_bool:
1312 		edit->pset->parts->pscheme->custom_attribute_toggle(
1313 		    edit->pset->parts, edit->id, attr_no);
1314 		break;
1315 	case pet_cardinal:
1316 	case pet_str:
1317 		edit->pset->parts->pscheme->format_custom_attribute(
1318 		    edit->pset->parts, edit->id, attr_no, &edit->info,
1319 		    line, sizeof(line));
1320 		msg_prompt_win(
1321 		    edit->pset->parts->pscheme->custom_attributes[attr_no].
1322 		    label, -1, 18, 0, 0, line, line, sizeof(line));
1323 		edit->pset->parts->pscheme->custom_attribute_set_str(
1324 		    edit->pset->parts, edit->id, attr_no, line);
1325 		break;
1326 	}
1327 
1328 	return 0;
1329 }
1330 
1331 
1332 /*
1333  * Some column width depend on translation, we will set these in
1334  * fmt_fspart_header and later use it when formatting single entries
1335  * in fmt_fspart_row.
1336  * The table consist of 3 "size like" columns, all fixed width, then
1337  * ptnheaders_fstype, part_header_col_flag, and finally the mount point
1338  * (which is variable width).
1339  */
1340 static int fstype_width, flags_width;
1341 static char fspart_separator[MENUSTRSIZE];
1342 static char fspart_title[2*MENUSTRSIZE];
1343 
1344 /*
1345  * Format the header of the main partition editor menu.
1346  */
1347 static void
fmt_fspart_header(menudesc * menu,void * arg)1348 fmt_fspart_header(menudesc *menu, void *arg)
1349 {
1350 	struct partition_usage_set *pset = arg;
1351 	char total[6], free_space[6], scol[13], ecol[13], szcol[13],
1352 	    sepline[MENUSTRSIZE], *p, desc[MENUSTRSIZE];
1353 	const char *fstype, *flags;
1354 	int i;
1355 	size_t ptn;
1356 	bool with_clone, with_inst_flag = pset->parts->parent == NULL;
1357 
1358 	with_clone = false;
1359 	for (ptn = 0; ptn < pset->num && !with_clone; ptn++)
1360 		if (pset->infos[ptn].flags & PUIFLG_CLONE_PARTS)
1361 			with_clone = true;
1362 	humanize_number(total, sizeof total,
1363 	    pset->parts->disk_size * pset->parts->bytes_per_sector,
1364 	    "", HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
1365 	humanize_number(free_space, sizeof free_space,
1366 	    pset->cur_free_space * pset->parts->bytes_per_sector,
1367 	    "", HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
1368 
1369 	if (with_clone)
1370 		strlcpy(desc, msg_string(MSG_clone_flag_desc), sizeof desc);
1371 	else
1372 		desc[0] = 0;
1373 	if (pset->parts->pscheme->part_flag_desc)
1374 		strlcat(desc, msg_string(pset->parts->pscheme->part_flag_desc),
1375 		sizeof desc);
1376 
1377 	msg_display_subst(MSG_fspart, 7, pset->parts->disk,
1378 	    msg_string(pset->parts->pscheme->name),
1379 	    msg_string(pset->parts->pscheme->short_name),
1380 	    with_inst_flag ? msg_string(MSG_ptn_instflag_desc) : "",
1381 	    desc, total, free_space);
1382 
1383 	snprintf(scol, sizeof scol, "%s (%s)",
1384 	    msg_string(MSG_ptnheaders_start), multname);
1385 	snprintf(ecol, sizeof ecol, "%s (%s)",
1386 	    msg_string(MSG_ptnheaders_end), multname);
1387 	snprintf(szcol, sizeof szcol, "%s (%s)",
1388 	    msg_string(MSG_ptnheaders_size), multname);
1389 
1390 	fstype = msg_string(MSG_ptnheaders_fstype);
1391 	flags = msg_string(MSG_part_header_col_flag);
1392 	fstype_width = max(strlen(fstype), 8);
1393 	flags_width = strlen(flags);
1394 	for (i = 0, p = sepline; i < fstype_width; i++)
1395 		*p++ = '-';
1396 	for (i = 0, *p++ = ' '; i < flags_width; i++)
1397 		*p++ = '-';
1398 	*p = 0;
1399 
1400 	snprintf(fspart_separator, sizeof(fspart_separator),
1401 	    "------------ ------------ ------------ %s ----------------",
1402 	    sepline);
1403 
1404 	snprintf(fspart_title, sizeof(fspart_title),
1405 	    "   %12.12s %12.12s %12.12s %*s %*s %s\n"
1406 	    "   %s", scol, ecol, szcol, fstype_width, fstype,
1407 	    flags_width, flags, msg_string(MSG_ptnheaders_filesystem),
1408 	    fspart_separator);
1409 
1410 	msg_table_add("\n\n");
1411 }
1412 
1413 /*
1414  * Format one partition entry in the main partition editor.
1415  */
1416 static void
fmt_fspart_row(menudesc * m,int ptn,void * arg)1417 fmt_fspart_row(menudesc *m, int ptn, void *arg)
1418 {
1419 	struct partition_usage_set *pset = arg;
1420 	struct disk_part_info info;
1421 	daddr_t poffset, psize, pend;
1422 	const char *desc;
1423 	static const char *Yes;
1424 	char flag_str[MENUSTRSIZE], *fp;
1425 	unsigned inst_flags;
1426 #ifndef NO_CLONES
1427 	size_t clone_cnt;
1428 #endif
1429 	bool with_inst_flag = pset->parts->parent == NULL;
1430 
1431 	if (Yes == NULL)
1432 		Yes = msg_string(MSG_Yes);
1433 
1434 #ifndef NO_CLONES
1435 	if ((pset->infos[ptn].flags & PUIFLG_CLONE_PARTS) &&
1436 	   pset->infos[ptn].cur_part_id == NO_PART) {
1437 		psize = pset->infos[ptn].size / sizemult;
1438 		if (pset->infos[ptn].clone_ndx <
1439 		    pset->infos[ptn].clone_src->num_sel)
1440 			clone_cnt = 1;
1441 		else
1442 			clone_cnt = pset->infos[ptn].clone_src->num_sel;
1443 		if (pset->infos[ptn].cur_part_id == NO_PART)
1444 			wprintw(m->mw, "                          %12" PRIu64
1445 			    " [%zu %s]", psize, clone_cnt,
1446 			    msg_string(MSG_clone_target_disp));
1447 		else {
1448 			poffset = pset->infos[ptn].cur_start / sizemult;
1449 			pend = (pset->infos[ptn].cur_start +
1450 			    pset->infos[ptn].size) / sizemult - 1;
1451 			wprintw(m->mw, "%12" PRIu64 " %12" PRIu64 " %12" PRIu64
1452 			    " [%zu %s]",
1453 			    poffset, pend, psize, clone_cnt,
1454 			    msg_string(MSG_clone_target_disp));
1455 		}
1456 		if (m->title == fspart_title)
1457 			m->opts[ptn].opt_flags |= OPT_IGNORE;
1458 		else
1459 			m->opts[ptn].opt_flags &= ~OPT_IGNORE;
1460 		return;
1461 	}
1462 #endif
1463 
1464 	if (!real_partition(pset, ptn))
1465 		return;
1466 
1467 	if (!pset->parts->pscheme->get_part_info(pset->parts,
1468 	    pset->infos[ptn].cur_part_id, &info))
1469 		return;
1470 
1471 	/*
1472 	 * We use this function in multiple menus, but only want it
1473 	 * to play with enable/disable in a single one:
1474 	 */
1475 	if (m->title == fspart_title) {
1476 		/*
1477 		 * Enable / disable this line if it is something
1478 		 * like RAW_PART
1479 		 */
1480 		if ((info.flags &
1481 		    (PTI_WHOLE_DISK|PTI_PSCHEME_INTERNAL|PTI_RAW_PART))
1482 		    || (pset->infos[ptn].flags & PUIFLG_CLONE_PARTS))
1483 			m->opts[ptn].opt_flags |= OPT_IGNORE;
1484 		else
1485 			m->opts[ptn].opt_flags &= ~OPT_IGNORE;
1486 	}
1487 
1488 	poffset = info.start / sizemult;
1489 	psize = info.size / sizemult;
1490 	if (psize == 0)
1491 		pend = 0;
1492 	else
1493 		pend = (info.start + info.size) / sizemult - 1;
1494 
1495 	if (info.flags & PTI_WHOLE_DISK)
1496 		desc = msg_string(MSG_NetBSD_partition_cant_change);
1497 	else if (info.flags & PTI_RAW_PART)
1498 		desc = msg_string(MSG_Whole_disk_cant_change);
1499 	else if (info.flags & PTI_BOOT)
1500 		desc = msg_string(MSG_Boot_partition_cant_change);
1501 	else
1502 		desc = getfslabelname(info.fs_type, info.fs_sub_type);
1503 
1504 	fp = flag_str;
1505 	inst_flags = pset->infos[ptn].instflags;
1506 	if (with_inst_flag && (info.flags & PTI_INSTALL_TARGET) &&
1507 	    info.nat_type->generic_ptype == PT_root) {
1508 		static char inst_flag;
1509 
1510 		if (inst_flag == 0)
1511 			inst_flag = msg_string(MSG_install_flag)[0];
1512 		*fp++ = inst_flag;
1513 	}
1514 	if (inst_flags & PUIINST_NEWFS)
1515 		*fp++ = msg_string(MSG_newfs_flag)[0];
1516 	if (pset->infos[ptn].flags & PUIFLG_CLONE_PARTS)
1517 		*fp++ = msg_string(MSG_clone_flag)[0];
1518 	*fp = 0;
1519 	if (pset->parts->pscheme->get_part_attr_str != NULL)
1520 		pset->parts->pscheme->get_part_attr_str(pset->parts,
1521 		    pset->infos[ptn].cur_part_id, fp,
1522 		    sizeof(flag_str)-1-(fp-flag_str));
1523 
1524 	/* if the fstype description does not fit, check if we can overrun */
1525 	if (strlen(desc) > (size_t)fstype_width &&
1526 	     flag_str[0] == 0 && (info.last_mounted == NULL ||
1527 	     info.last_mounted[0] == 0))
1528 		wprintw(m->mw, "%12" PRIu64 " %12" PRIu64 " %12" PRIu64
1529 		    " %s",
1530 		    poffset, pend, psize, desc);
1531 	else
1532 		wprintw(m->mw, "%12" PRIu64 " %12" PRIu64 " %12" PRIu64
1533 		    " %*.*s %*s %s",
1534 		    poffset, pend, psize, fstype_width, fstype_width, desc,
1535 		    -flags_width, flag_str,
1536 		    (inst_flags & PUIINST_MOUNT) && info.last_mounted &&
1537 		     info.last_mounted[0] ? info.last_mounted : "");
1538 }
1539 
1540 #ifndef NO_CLONES
1541 static int
part_ext_clone(menudesc * m,void * arg)1542 part_ext_clone(menudesc *m, void *arg)
1543 {
1544 	struct selected_partitions selected, *clone_src;
1545 	struct clone_target_menu_data data;
1546 	struct partition_usage_set *pset = arg;
1547 	struct part_usage_info *p;
1548 	struct disk_part_info sinfo, cinfo;
1549 	struct disk_partitions *csrc;
1550 	struct disk_part_free_space space;
1551 	menu_ent *men;
1552 	daddr_t clone_size, free_size, offset, align;
1553 	int num_men, i;
1554 	size_t s, clone_cnt;
1555 	part_id cid;
1556 	struct clone_data {
1557 		struct disk_part_info info;
1558 		part_id new_id;
1559 		size_t ndx;
1560 	};
1561 	struct clone_data *clones = NULL;
1562 
1563 	if (!select_partitions(&selected, pm->parts))
1564 		return 0;
1565 
1566 	clone_size = selected_parts_size(&selected);
1567 	num_men = pset->num+1;
1568 	men = calloc(num_men, sizeof *men);
1569 	if (men == NULL)
1570 		return 0;
1571 	for (i = 0; i < num_men; i++) {
1572 		men[i].opt_action = clone_target_select;
1573 		if (i == 0)
1574 			free_size = pset->infos[i].cur_start;
1575 		else if (i > 0 && (size_t)i < pset->num)
1576 			free_size = pset->infos[i].cur_start -
1577 			    pset->infos[i-1].cur_start - pset->infos[i-1].size;
1578 		else
1579 			free_size = pset->parts->free_space;
1580 		if (free_size < clone_size)
1581 			men[i].opt_flags = OPT_IGNORE;
1582 	}
1583 	men[num_men-1].opt_name = MSG_clone_target_end;
1584 
1585 	memset(&data, 0, sizeof data);
1586 	data.usage = *pset;
1587 	data.res = -1;
1588 
1589 	data.usage.menu = new_menu(MSG_clone_target_hdr,
1590 	    men, num_men, 3, 2, 0, 65, MC_SCROLL,
1591 	    NULL, fmt_fspart_row, NULL, NULL, MSG_cancel);
1592 	process_menu(data.usage.menu, &data);
1593 	free_menu(data.usage.menu);
1594 	free(men);
1595 
1596 	if (data.res < 0)
1597 		goto err;
1598 
1599 	/* create temporary infos for all clones that work out */
1600 	clone_cnt = 0;
1601 	clones = calloc(selected.num_sel, sizeof(*clones));
1602 	if (clones == NULL)
1603 		goto err;
1604 
1605 	clone_src = malloc(sizeof(selected));
1606 	if (clone_src == NULL)
1607 		goto err;
1608 	*clone_src = selected;
1609 
1610 	/* find selected offset from data.res and insert clones there */
1611 	align = pset->parts->pscheme->get_part_alignment(pset->parts);
1612 	offset = -1;
1613 	if (data.res > 0)
1614 		offset = pset->infos[data.res-1].cur_start
1615 		    + pset->infos[data.res-1].size;
1616 	else
1617 		offset = 0;
1618 	for (s = 0; s < selected.num_sel; s++) {
1619 		csrc = selected.selection[s].parts;
1620 		cid = selected.selection[s].id;
1621 		csrc->pscheme->get_part_info(csrc, cid, &sinfo);
1622 		if (!pset->parts->pscheme->adapt_foreign_part_info(
1623 		    pset->parts, &cinfo, csrc->pscheme, &sinfo))
1624 			continue;
1625 		size_t cnt = pset->parts->pscheme->get_free_spaces(
1626 		    pset->parts, &space, 1, cinfo.size-align, align,
1627 		    offset, -1);
1628 		if (cnt == 0)
1629 			continue;
1630 		cinfo.start = space.start;
1631 		cid = pset->parts->pscheme->add_partition(
1632 		    pset->parts, &cinfo, NULL);
1633 		if (cid == NO_PART)
1634 			continue;
1635 		pset->parts->pscheme->get_part_info(pset->parts, cid, &cinfo);
1636 		clones[clone_cnt].info = cinfo;
1637 		clones[clone_cnt].new_id = cid;
1638 		clones[clone_cnt].ndx = s;
1639 		clone_cnt++;
1640 		offset = roundup(cinfo.start+cinfo.size, align);
1641 	}
1642 
1643 	/* insert new clone records at offset data.res */
1644 	men = realloc(m->opts, (m->numopts+clone_cnt)*sizeof(*m->opts));
1645 	if (men == NULL)
1646 		goto err;
1647 	pset->menu_opts = men;
1648 	m->opts = men;
1649 	m->numopts += clone_cnt;
1650 
1651 	p = realloc(pset->infos, (pset->num+clone_cnt)*sizeof(*pset->infos));
1652 	if (p == NULL)
1653 		goto err;
1654 	pset->infos = p;
1655 
1656 	men += data.res;
1657 	p += data.res;
1658 	memmove(men+clone_cnt, men,
1659 	    sizeof(*men)*(m->numopts-data.res-clone_cnt));
1660 	if (pset->num > (size_t)data.res)
1661 		memmove(p+clone_cnt, p, sizeof(*p)*(pset->num-data.res));
1662 	memset(men, 0, sizeof(*men)*clone_cnt);
1663 	memset(p, 0, sizeof(*p)*clone_cnt);
1664 	for (s = 0; s < clone_cnt; s++) {
1665 		p[s].cur_part_id = clones[s].new_id;
1666 		p[s].cur_start = clones[s].info.start;
1667 		p[s].size = clones[s].info.size;
1668 		p[s].cur_flags = clones[s].info.flags;
1669 		p[s].flags = PUIFLG_CLONE_PARTS;
1670 		p[s].parts = pset->parts;
1671 		p[s].clone_src = clone_src;
1672 		p[s].clone_ndx = s;
1673 	}
1674 	free(clones);
1675 	m->cursel = ((size_t)data.res >= pset->num) ? 0 : data.res+clone_cnt;
1676 	pset->num += clone_cnt;
1677 	m->h = 0;
1678 	resize_menu_height(m);
1679 
1680 	return -1;
1681 
1682 err:
1683 	free(clones);
1684 	free_selected_partitions(&selected);
1685 	return 0;
1686 }
1687 #endif
1688 
1689 static int
edit_fspart_pack(menudesc * m,void * arg)1690 edit_fspart_pack(menudesc *m, void *arg)
1691 {
1692 	struct partition_usage_set *pset = arg;
1693 	char buf[STRSIZE];
1694 
1695 	if (!pset->parts->pscheme->get_disk_pack_name(pset->parts,
1696 	    buf, sizeof buf))
1697 		return 0;
1698 
1699 	msg_prompt_win(MSG_edit_disk_pack_hdr,
1700 	    -1, 18, 0, -1, buf, buf, sizeof(buf));
1701 
1702 	pset->parts->pscheme->set_disk_pack_name(pset->parts, buf);
1703 	return 0;
1704 }
1705 
1706 static int
edit_fspart_add(menudesc * m,void * arg)1707 edit_fspart_add(menudesc *m, void *arg)
1708 {
1709 	struct partition_usage_set *pset = arg;
1710 	struct part_usage_info *ninfo;
1711 	menu_ent *nmenopts;
1712 	size_t cnt, off;
1713 
1714 	ninfo = realloc(pset->infos, (pset->num+1)*sizeof(*pset->infos));
1715 	if (ninfo == NULL)
1716 		return 0;
1717 	pset->infos = ninfo;
1718 	off = pset->parts->num_part;
1719 	cnt = pset->num-pset->parts->num_part;
1720 	if (cnt > 0)
1721 		memmove(pset->infos+off+1,pset->infos+off,
1722 		    cnt*sizeof(*pset->infos));
1723 	memset(pset->infos+off, 0, sizeof(*pset->infos));
1724 
1725 	nmenopts = realloc(m->opts, (m->numopts+1)*sizeof(*m->opts));
1726 	if (nmenopts == NULL)
1727 		return 0;
1728 	memmove(nmenopts+off+1, nmenopts+off,
1729 	    (m->numopts-off)*sizeof(*nmenopts));
1730 	memset(&nmenopts[off], 0, sizeof(nmenopts[off]));
1731 	nmenopts[off].opt_action = edit_ptn;
1732 	pset->menu_opts = m->opts = nmenopts;
1733 	m->numopts++;
1734 	m->cursel = off;
1735 	pset->num++;
1736 
1737 	/* now update edit menu to fit */
1738 	m->h = 0;
1739 	resize_menu_height(m);
1740 
1741 	/* and directly invoke the partition editor for the new part */
1742 	edit_ptn(m, arg);
1743 
1744 	show_partition_adder(m, pset);
1745 
1746 	return -1;
1747 }
1748 
1749 static void
add_partition_adder(menudesc * m,struct partition_usage_set * pset)1750 add_partition_adder(menudesc *m, struct partition_usage_set *pset)
1751 {
1752 	struct part_usage_info *ninfo;
1753 	menu_ent *nmenopts;
1754 	size_t off;
1755 
1756 	ninfo = realloc(pset->infos, (pset->num+1)*sizeof(*pset->infos));
1757 	if (ninfo == NULL)
1758 		return;
1759 	pset->infos = ninfo;
1760 	off = pset->parts->num_part+1;
1761 
1762 	nmenopts = realloc(m->opts, (m->numopts+1)*sizeof(*m->opts));
1763 	if (nmenopts == NULL)
1764 		return;
1765 	memmove(nmenopts+off+1, nmenopts+off,
1766 	    (m->numopts-off)*sizeof(*nmenopts));
1767 	memset(&nmenopts[off], 0, sizeof(nmenopts[off]));
1768 
1769 	nmenopts[off].opt_name = MSG_addpart;
1770 	nmenopts[off].opt_flags = OPT_SUB;
1771 	nmenopts[off].opt_action = edit_fspart_add;
1772 
1773 	m->opts = nmenopts;
1774 	m->numopts++;
1775 }
1776 
1777 static void
remove_partition_adder(menudesc * m,struct partition_usage_set * pset)1778 remove_partition_adder(menudesc *m, struct partition_usage_set *pset)
1779 {
1780 	size_t off;
1781 
1782 	off = pset->parts->num_part+1;
1783 	memmove(m->opts+off, m->opts+off+1,
1784 	    (m->numopts-off-1)*sizeof(*m->opts));
1785 	m->numopts--;
1786 }
1787 
1788 /*
1789  * Called whenever the "add a partition" option may need to be removed
1790  * or added
1791  */
1792 static void
show_partition_adder(menudesc * m,struct partition_usage_set * pset)1793 show_partition_adder(menudesc *m, struct partition_usage_set *pset)
1794 {
1795 	if (m->opts == NULL)
1796 		return;
1797 
1798 	bool can_add_partition = pset->parts->pscheme->can_add_partition(
1799 	    pset->parts);
1800 	bool part_adder_present =
1801 	    (m->opts[pset->parts->num_part].opt_flags & OPT_IGNORE) &&
1802 	    (m->opts[pset->parts->num_part+1].opt_action == edit_fspart_add);
1803 
1804 	if (can_add_partition == part_adder_present)
1805 		return;
1806 
1807 	if (can_add_partition)
1808 		add_partition_adder(m, pset);
1809 	else
1810 		remove_partition_adder(m, pset);
1811 
1812 	/* now update edit menu to fit */
1813 	m->h = 0;
1814 	resize_menu_height(m);
1815 }
1816 
1817 static int
edit_fspart_abort(menudesc * m,void * arg)1818 edit_fspart_abort(menudesc *m, void *arg)
1819 {
1820 	struct partition_usage_set *pset = arg;
1821 
1822 	pset->ok = false;
1823 	return 1;
1824 }
1825 
1826 /*
1827  * Check a disklabel.
1828  * If there are overlapping active partitions,
1829  * Ask the user if they want to edit the partition or give up.
1830  */
1831 int
edit_and_check_label(struct pm_devs * p,struct partition_usage_set * pset,bool install)1832 edit_and_check_label(struct pm_devs *p, struct partition_usage_set *pset,
1833     bool install)
1834 {
1835 	menu_ent *op;
1836 	size_t cnt, i;
1837 	bool may_add = pset->parts->pscheme->can_add_partition(pset->parts);
1838 	bool may_edit_pack =
1839 	    pset->parts->pscheme->get_disk_pack_name != NULL &&
1840 	    pset->parts->pscheme->set_disk_pack_name != NULL;
1841 
1842 #ifdef NO_CLONES
1843 #define	C_M_ITEMS	0
1844 #else
1845 #define	C_M_ITEMS	1
1846 #endif
1847 	pset->menu_opts = calloc(pset->parts->num_part
1848 	     +3+C_M_ITEMS+may_add+may_edit_pack,
1849 	     sizeof *pset->menu_opts);
1850 	if (pset->menu_opts == NULL)
1851 		return 0;
1852 
1853 	op = pset->menu_opts;
1854 	for (i = 0; i < pset->parts->num_part; i++) {
1855 		op->opt_action = edit_ptn;
1856 		op++;
1857 	}
1858 	/* separator line between partitions and actions */
1859 	op->opt_name = fspart_separator;
1860 	op->opt_flags = OPT_IGNORE|OPT_NOSHORT;
1861 	op++;
1862 
1863 	/* followed by new partition adder */
1864 	if (may_add) {
1865 		op->opt_name = MSG_addpart;
1866 		op->opt_flags = OPT_SUB;
1867 		op->opt_action = edit_fspart_add;
1868 		op++;
1869 	}
1870 
1871 	/* and unit changer */
1872 	op->opt_name = MSG_askunits;
1873 	op->opt_menu = MENU_sizechoice;
1874 	op->opt_flags = OPT_SUB;
1875 	op->opt_action = NULL;
1876 	op++;
1877 
1878 	if (may_edit_pack) {
1879 		op->opt_name = MSG_editpack;
1880 		op->opt_flags = OPT_SUB;
1881 		op->opt_action = edit_fspart_pack;
1882 		op++;
1883 	}
1884 
1885 #ifndef NO_CLONES
1886 	/* add a clone-from-elsewhere option */
1887 	op->opt_name = MSG_clone_from_elsewhere;
1888 	op->opt_action = part_ext_clone;
1889 	op++;
1890 #endif
1891 
1892 	/* and abort option */
1893 	op->opt_name = MSG_cancel;
1894 	op->opt_flags = OPT_EXIT;
1895 	op->opt_action = edit_fspart_abort;
1896 	op++;
1897 	cnt = op - pset->menu_opts;
1898 	assert(cnt == pset->parts->num_part+3+C_M_ITEMS+may_add+may_edit_pack);
1899 
1900 	pset->menu = new_menu(fspart_title, pset->menu_opts, cnt,
1901 			0, -1, 0, 74,
1902 			MC_ALWAYS_SCROLL|MC_NOBOX|MC_DFLTEXIT|
1903 			MC_NOCLEAR|MC_CONTINUOUS,
1904 			fmt_fspart_header, fmt_fspart_row, NULL, NULL,
1905 			MSG_partition_sizes_ok);
1906 
1907 	if (pset->menu < 0) {
1908 		free(pset->menu_opts);
1909 		pset->menu_opts = NULL;
1910 		return 0;
1911 	}
1912 
1913 	p->current_cylsize = p->dlcylsize;
1914 
1915 	for (;;) {
1916 		/* first give the user the option to edit the label... */
1917 		pset->ok = true;
1918 		process_menu(pset->menu, pset);
1919 		if (!pset->ok) {
1920 			i = 0;
1921 			break;
1922 		}
1923 
1924 		/* User thinks the label is OK. */
1925 		i = verify_parts(pset, install);
1926 		if (i == 1)
1927 			continue;
1928 		break;
1929 	}
1930 	free(pset->menu_opts);
1931 	pset->menu_opts = NULL;
1932 	free_menu(pset->menu);
1933 	pset->menu = -1;
1934 
1935 	return i != 0;
1936 }
1937 
1938 /*
1939  * strip trailing / to avoid confusion in path comparisons later
1940  */
1941 void
canonicalize_last_mounted(char * path)1942 canonicalize_last_mounted(char *path)
1943 {
1944 	char *p;
1945 
1946 	if (path == NULL)
1947 		return;
1948 
1949 	if (strcmp(path, "/") == 0)
1950 		return;	/* in this case a "trailing" slash is allowed */
1951 
1952 	for (;;) {
1953 		p = strrchr(path, '/');
1954 		if (p == NULL)
1955 			return;
1956 		if (p[1] != 0)
1957 			return;
1958 		p[0] = 0;
1959 	}
1960 }
1961 
1962 /*
1963  * Try to get 'last mounted on' (or equiv) from fs superblock.
1964  */
1965 const char *
get_last_mounted(int fd,daddr_t partstart,uint * fs_type,uint * fs_sub_type,uint flags)1966 get_last_mounted(int fd, daddr_t partstart, uint *fs_type, uint *fs_sub_type,
1967     uint flags)
1968 {
1969 	static char sblk[SBLOCKSIZE];		/* is this enough? */
1970 	struct fs *SB = (struct fs *)sblk;
1971 	static const off_t sblocks[] = SBLOCKSEARCH;
1972 	const off_t *sbp;
1973 	const char *mnt = NULL;
1974 	int len;
1975 
1976 	if (fd == -1)
1977 		return "";
1978 
1979 	if (fs_type)
1980 		*fs_type = 0;
1981 	if (fs_sub_type)
1982 		*fs_sub_type = 0;
1983 
1984 	/* Check UFS1/2 (and hence LFS) superblock */
1985 	for (sbp = sblocks; mnt == NULL && *sbp != -1; sbp++) {
1986 		if (pread(fd, sblk, sizeof sblk,
1987 		    (off_t)partstart * (off_t)512 + *sbp) != sizeof sblk)
1988 			continue;
1989 
1990 		/*
1991 		 * If start of partition and allowed by flags check
1992 		 * for other fs types
1993 		 */
1994 		if (*sbp == 0 && (flags & GLM_MAYBE_FAT32) &&
1995 		    sblk[0x42] == 0x29 && memcmp(sblk + 0x52, "FAT", 3) == 0) {
1996 			/* Probably a FAT filesystem, report volume name */
1997 			size_t i;
1998 			for (i = 0x51; i >= 0x47; i--) {
1999 				if (sblk[i] != ' ')
2000 					break;
2001 				sblk[i] = 0;
2002 			}
2003 			sblk[0x52] = 0;
2004 			if (fs_type)
2005 				*fs_type = FS_MSDOS;
2006 			if (fs_sub_type)
2007 				*fs_sub_type = sblk[0x53];
2008 			return sblk + 0x47;
2009 		} else if (*sbp == 0 && (flags & GLM_MAYBE_NTFS) &&
2010 		    memcmp(sblk+3, "NTFS    ", 8) == 0) {
2011 			if (fs_type)
2012 				*fs_type = FS_NTFS;
2013 			if (fs_sub_type)
2014 				*fs_sub_type = MBR_PTYPE_NTFS;
2015 			/* XXX dig for volume name attribute ? */
2016 			return "";
2017 		}
2018 
2019 		if (!(flags & GLM_LIKELY_FFS))
2020 			continue;
2021 
2022 		/* Maybe we should validate the checksum??? */
2023 		switch (SB->fs_magic) {
2024 		case FS_UFS1_MAGIC:
2025 		case FS_UFS1_MAGIC_SWAPPED:
2026 			if (!(SB->fs_old_flags & FS_FLAGS_UPDATED)) {
2027 				if (*sbp == SBLOCK_UFS1)
2028 					mnt = (const char *)SB->fs_fsmnt;
2029 			} else {
2030 				/* Check we have the main superblock */
2031 				if (SB->fs_sblockloc == *sbp)
2032 					mnt = (const char *)SB->fs_fsmnt;
2033 			}
2034 			if (fs_type)
2035 				*fs_type = FS_BSDFFS;
2036 			if (fs_sub_type)
2037 				*fs_sub_type = 1;
2038 			continue;
2039 		case FS_UFS2_MAGIC:
2040 		case FS_UFS2EA_MAGIC:
2041 		case FS_UFS2_MAGIC_SWAPPED:
2042 		case FS_UFS2EA_MAGIC_SWAPPED:
2043 			/* Check we have the main superblock */
2044 			if (SB->fs_sblockloc == *sbp) {
2045 				mnt = (const char *)SB->fs_fsmnt;
2046 				if (fs_type)
2047 					*fs_type = FS_BSDFFS;
2048 				if (fs_sub_type)
2049 					*fs_sub_type = 2;
2050 			}
2051 			continue;
2052 		}
2053 	}
2054 
2055 	if (mnt == NULL)
2056 		return "";
2057 
2058 	/* If sysinst mounted this last then strip prefix */
2059 	len = strlen(targetroot_mnt);
2060 	if (memcmp(mnt, targetroot_mnt, len) == 0) {
2061 		if (mnt[len] == 0)
2062 			return "/";
2063 		if (mnt[len] == '/')
2064 			return mnt + len;
2065 	}
2066 	return mnt;
2067 	#undef SB
2068 }
2069 
2070 /* Ask for a partition offset, check bounds and do the needed roundups */
2071 daddr_t
getpartoff(struct disk_partitions * parts,daddr_t defpartstart)2072 getpartoff(struct disk_partitions *parts, daddr_t defpartstart)
2073 {
2074 	char defstart[24], isize[24], maxpart, minspace, maxspace,
2075 	    *prompt, *label_msg, valid_parts[4], valid_spaces[4],
2076 	    space_prompt[1024], *head, *hint_part, *hint_space, *tail;
2077 	size_t num_freespace, spaces, ndx;
2078 	struct disk_part_free_space *freespace;
2079 	daddr_t i, localsizemult, ptn_alignment, min, max;
2080 	part_id partn;
2081 	struct disk_part_info info;
2082 	const char *errmsg = NULL;
2083 
2084 	min = parts->disk_start;
2085 	max = min + parts->disk_size;
2086 
2087 	/* upper bound on the number of free spaces, plus some slope */
2088 	num_freespace = parts->num_part * 2 + 5;
2089 	freespace = calloc(num_freespace, sizeof(*freespace));
2090 	if (freespace == NULL)
2091 		return -1;
2092 
2093 	ptn_alignment = parts->pscheme->get_part_alignment(parts);
2094 	spaces = parts->pscheme->get_free_spaces(parts, freespace,
2095 	    num_freespace, max(sizemult, ptn_alignment), ptn_alignment, -1,
2096 	    defpartstart);
2097 
2098 	maxpart = 'a' + parts->num_part -1;
2099 	if (parts->num_part > 1) {
2100 		snprintf(valid_parts, sizeof valid_parts, "a-%c", maxpart);
2101 	} else if (parts->num_part == 1) {
2102 		snprintf(valid_parts, sizeof valid_parts, "  %c", maxpart);
2103 	} else {
2104 		strcpy(valid_parts, "---");
2105 	}
2106 	if (spaces > 1) {
2107 		minspace = maxpart + 1;
2108 		maxspace = minspace + spaces -1;
2109 		snprintf(valid_spaces, sizeof valid_spaces, "%c-%c", minspace,
2110 		    maxspace);
2111 	} else if (spaces == 1) {
2112 		maxspace = minspace = maxpart + 1;
2113 		snprintf(valid_spaces, sizeof valid_spaces, "  %c", minspace);
2114 	} else {
2115 		minspace = 0;
2116 		maxspace = 0;
2117 		strcpy(valid_spaces, "---");
2118 	}
2119 
2120 	/* Add description of start/size to user prompt */
2121 	const char *mstr = msg_string(MSG_free_space_line);
2122         space_prompt[0] = 0;
2123         for (ndx = 0; ndx < spaces; ndx++) {
2124                 char str_start[40], str_end[40], str_size[40], str_tag[4];
2125 
2126 		sprintf(str_tag, "%c: ", minspace+(int)ndx);
2127                 sprintf(str_start, "%" PRIu64, freespace[ndx].start / sizemult);
2128                 sprintf(str_end, "%" PRIu64,
2129                     (freespace[ndx].start + freespace[ndx].size) / sizemult);
2130                 sprintf(str_size, "%" PRIu64, freespace[ndx].size / sizemult);
2131                 const char *args[4] = { str_start, str_end, str_size,
2132                     multname };
2133                 char *line = str_arg_subst(mstr, 4, args);
2134 		strlcat(space_prompt, str_tag, sizeof(space_prompt));
2135                 size_t len = strlcat(space_prompt, line, sizeof(space_prompt));
2136                 free (line);
2137                 if (len >= sizeof space_prompt)
2138                         break;
2139         }
2140 
2141 	const char *args[] = { valid_parts, valid_spaces, multname };
2142 	hint_part = NULL;
2143 	hint_space = NULL;
2144 	head = str_arg_subst(msg_string(MSG_label_offset_head),
2145 	    __arraycount(args), args);
2146 	if (parts->num_part)
2147 		hint_part = str_arg_subst(msg_string(
2148 		    MSG_label_offset_part_hint), __arraycount(args), args);
2149 	if (spaces)
2150 		hint_space = str_arg_subst(msg_string(
2151 		    MSG_label_offset_space_hint), __arraycount(args), args);
2152 	tail = str_arg_subst(msg_string(MSG_label_offset_tail),
2153 	    __arraycount(args), args);
2154 
2155 	if (hint_part && hint_space)
2156 		asprintf(&label_msg, "%s\n%s\n%s\n\n%s\n%s",
2157 		    head, hint_part, hint_space, space_prompt, tail);
2158 	else if (hint_part)
2159 		asprintf(&label_msg, "%s\n%s\n\n%s",
2160 		    head, hint_part, tail);
2161 	else if (hint_space)
2162 		asprintf(&label_msg, "%s\n%s\n\n%s\n%s",
2163 		    head, hint_space, space_prompt, tail);
2164 	else
2165 		asprintf(&label_msg, "%s\n\n%s",
2166 		    head, tail);
2167 	free(head); free(hint_part); free(hint_space); free(tail);
2168 
2169 	localsizemult = sizemult;
2170 	errmsg = NULL;
2171 	for (;;) {
2172 		snprintf(defstart, sizeof defstart, "%" PRIu64,
2173 		    defpartstart/sizemult);
2174 		if (errmsg != NULL && errmsg[0] != 0)
2175 			asprintf(&prompt, "%s\n\n%s", errmsg, label_msg);
2176 		else
2177 			prompt = label_msg;
2178 		msg_prompt_win(prompt, -1, 13, 70, -1,
2179 		    (defpartstart > 0) ? defstart : NULL, isize, sizeof isize);
2180 		if (label_msg != prompt)
2181 			free(prompt);
2182 		if (strcmp(defstart, isize) == 0) {
2183 			/* Don't do rounding if default accepted */
2184 			i = defpartstart;
2185 			break;
2186 		}
2187 		if (isize[1] == '\0' && isize[0] >= 'a' &&
2188 		    isize[0] <= maxpart) {
2189 			partn = isize[0] - 'a';
2190 			if (parts->pscheme->get_part_info(parts, partn,
2191 			    &info)) {
2192 				i = info.start + info.size;
2193 				localsizemult = 1;
2194 			} else {
2195 				errmsg = msg_string(MSG_invalid_sector_number);
2196 				continue;
2197 			}
2198 		} else if (isize[1] == '\0' && isize[0] >= minspace &&
2199 		    isize[0] <= maxspace) {
2200 			ndx = isize[0] - minspace;
2201 			i = freespace[ndx].start;
2202 			localsizemult = 1;
2203 		} else if (atoi(isize) == -1) {
2204 			i = min;
2205 			localsizemult = 1;
2206 		} else {
2207 			i = parse_disk_pos(isize, &localsizemult,
2208 			    parts->bytes_per_sector,
2209 			    parts->pscheme->get_cylinder_size(parts), NULL);
2210 			if (i < 0) {
2211 				errmsg = msg_string(MSG_invalid_sector_number);
2212 				continue;
2213 			}
2214 		}
2215 		/* round to cylinder size if localsizemult != 1 */
2216 		int cylsize = parts->pscheme->get_cylinder_size(parts);
2217 		i = NUMSEC(i, localsizemult, cylsize);
2218 		/* Adjust to start of slice if needed */
2219 		if ((i < min && (min - i) < localsizemult) ||
2220 		    (i > min && (i - min) < localsizemult)) {
2221 			i = min;
2222 		}
2223 		if (max == 0 || i <= max)
2224 			break;
2225 		errmsg = msg_string(MSG_startoutsidedisk);
2226 	}
2227 	free(label_msg);
2228 	free(freespace);
2229 
2230 	return i;
2231 }
2232 
2233 
2234 /* Ask for a partition size, check bounds and do the needed roundups */
2235 daddr_t
getpartsize(struct disk_partitions * parts,daddr_t orig_start,daddr_t partstart,daddr_t dflt)2236 getpartsize(struct disk_partitions *parts, daddr_t orig_start,
2237     daddr_t partstart, daddr_t dflt)
2238 {
2239 	char dsize[24], isize[24], max_size[24], maxpartc, valid_parts[4],
2240 	    *label_msg, *prompt, *head, *hint, *tail;
2241 	const char *errmsg = NULL;
2242 	daddr_t i, partend, diskend, localsizemult, max, max_r, dflt_r;
2243 	struct disk_part_info info;
2244 	part_id partn;
2245 
2246 	diskend = parts->disk_start + parts->disk_size;
2247 	max = parts->pscheme->max_free_space_at(parts, orig_start);
2248 	max += orig_start - partstart;
2249 	if (sizemult == 1)
2250 		max--;	/* with hugher scale proper rounding later will be ok */
2251 
2252 	/* We need to keep both the unrounded and rounded (_r) max and dflt */
2253 	dflt_r = (partstart + dflt) / sizemult - partstart / sizemult;
2254 	if (max == dflt)
2255 		max_r = dflt_r;
2256 	else
2257 		max_r = max / sizemult;
2258 	/* the partition may have been moved and now not fit any longer */
2259 	if (dflt > max)
2260 		dflt = max;
2261 	if (dflt_r > max_r)
2262 		dflt_r = max_r;
2263 
2264 	snprintf(max_size, sizeof max_size, "%" PRIu64, max_r);
2265 
2266 	maxpartc = 'a' + parts->num_part -1;
2267 	if (parts->num_part > 1) {
2268 		snprintf(valid_parts, sizeof valid_parts, "a-%c", maxpartc);
2269 	} else if (parts->num_part == 1) {
2270 		snprintf(valid_parts, sizeof valid_parts, "  %c", maxpartc);
2271 	} else {
2272 		strcpy(valid_parts, "---");
2273 	}
2274 
2275 	const char *args[] = { valid_parts, max_size, multname };
2276 	hint = NULL;
2277 	head = str_arg_subst(msg_string(MSG_label_size_head),
2278 	    __arraycount(args), args);
2279 	if (parts->num_part)
2280 		hint  = str_arg_subst(msg_string(MSG_label_size_part_hint),
2281 		    __arraycount(args), args);
2282 	tail = str_arg_subst(msg_string(MSG_label_size_tail),
2283 	    __arraycount(args), args);
2284 
2285 	if (hint != NULL)
2286 		asprintf(&label_msg, "%s\n%s\n\n%s", head, hint, tail);
2287 	else
2288 		asprintf(&label_msg, "%s\n\n%s", head, tail);
2289 	free(head); free(hint); free(tail);
2290 
2291 	localsizemult = sizemult;
2292 	i = -1;
2293 	for (;;) {
2294 		snprintf(dsize, sizeof dsize, "%" PRIu64, dflt_r);
2295 
2296 		if (errmsg != NULL && errmsg[0] != 0)
2297 			asprintf(&prompt, "%s\n\n%s", errmsg, label_msg);
2298 		else
2299 			prompt = label_msg;
2300 		msg_prompt_win(prompt, -1, 12, 70, -1,
2301 		    (dflt != 0) ? dsize : 0, isize, sizeof isize);
2302 		if (prompt != label_msg)
2303 			free(prompt);
2304 
2305 		if (strcmp(isize, dsize) == 0) {
2306 			free(label_msg);
2307 			return dflt;
2308 		}
2309 		if (parts->num_part && isize[1] == '\0' && isize[0] >= 'a' &&
2310 		    isize[0] <= maxpartc) {
2311 			partn = isize[0] - 'a';
2312 			if (parts->pscheme->get_part_info(parts, partn,
2313 			    &info)) {
2314 				i = info.start - partstart -1;
2315 				localsizemult = 1;
2316 				max_r = max;
2317 			}
2318 		} else if (atoi(isize) == -1) {
2319 			i = max;
2320 			localsizemult = 1;
2321 			max_r = max;
2322 		} else {
2323 			i = parse_disk_pos(isize, &localsizemult,
2324 			    parts->bytes_per_sector,
2325 			    parts->pscheme->get_cylinder_size(parts), NULL);
2326 			if (localsizemult != sizemult)
2327 				max_r = max;
2328 		}
2329 		if (i < 0) {
2330 			errmsg = msg_string(MSG_Invalid_numeric);
2331 			continue;
2332 		} else if (i > max_r) {
2333 			errmsg = msg_string(MSG_Too_large);
2334 			continue;
2335 		}
2336 		/*
2337 		 * partend is aligned to a cylinder if localsizemult
2338 		 * is not 1 sector
2339 		 */
2340 		int cylsize = parts->pscheme->get_cylinder_size(parts);
2341 		partend = NUMSEC((partstart + i*localsizemult) / localsizemult,
2342 		    localsizemult, cylsize);
2343 		/* Align to end-of-disk or end-of-slice if close enough */
2344 		if (partend > (diskend - sizemult)
2345 		    && partend < (diskend + sizemult))
2346 			partend = diskend;
2347 		if (partend > (partstart + max - sizemult)
2348 		    && partend < (partstart + max + sizemult))
2349 			partend = partstart + max;
2350 		/* sanity checks */
2351 		if (partend > diskend) {
2352 			partend = diskend;
2353 			errmsg = msg_string(MSG_endoutsidedisk);
2354 			continue;
2355 		}
2356 		free(label_msg);
2357 		if (partend < partstart)
2358 			return 0;
2359 		return (partend - partstart);
2360 	}
2361 	/* NOTREACHED */
2362 }
2363 
2364 /*
2365  * convert a string to a number of sectors, with a possible unit
2366  * 150M = 150 Megabytes
2367  * 2000c = 2000 cylinders
2368  * 150256s = 150256 sectors
2369  * Without units, use the default (sizemult).
2370  * returns the raw input value, and the unit used. Caller needs to multiply!
2371  * On invalid inputs, returns -1.
2372  */
2373 daddr_t
parse_disk_pos(const char * str,daddr_t * localsizemult,daddr_t bps,daddr_t cyl_size,bool * extend_this)2374 parse_disk_pos(
2375 	const char *str,
2376 	daddr_t *localsizemult,
2377 	daddr_t bps,
2378 	daddr_t cyl_size,
2379 	bool *extend_this)
2380 {
2381 	daddr_t val;
2382 	char *cp;
2383 	bool mult_found;
2384 
2385 	if (str[0] == '\0') {
2386 		return -1;
2387 	}
2388 	val = strtoull(str, &cp, 10);
2389 	mult_found = false;
2390 	if (extend_this)
2391 		*extend_this = false;
2392 	while (*cp != 0) {
2393 		if (*cp == 'G' || *cp == 'g') {
2394 			if (mult_found)
2395 				return -1;
2396 			*localsizemult = GIG / bps;
2397 			goto next;
2398 		}
2399 		if (*cp == 'M' || *cp == 'm') {
2400 			if (mult_found)
2401 				return -1;
2402 			*localsizemult = MEG / bps;
2403 			goto next;
2404 		}
2405 		if (*cp == 'c' || *cp == 'C') {
2406 			if (mult_found)
2407 				return -1;
2408 			*localsizemult = cyl_size;
2409 			goto next;
2410 		}
2411 		if (*cp == 's' || *cp == 'S') {
2412 			if (mult_found)
2413 				return -1;
2414 			*localsizemult = 1;
2415 			goto next;
2416 		}
2417 		if (*cp == '+' && extend_this) {
2418 			*extend_this = true;
2419 			cp++;
2420 			break;
2421 		}
2422 
2423 		/* not a known unit */
2424 		return -1;
2425 
2426 next:
2427 		mult_found = true;
2428 		cp++;
2429 		continue;
2430 	}
2431 	if (*cp != 0)
2432 		return -1;
2433 
2434 	return val;
2435 }
2436