source: MondoRescue/branches/3.0/mondo/src/common/libmondo-mountlist.c@ 2944

Last change on this file since 2944 was 2944, checked in by Bruno Cornec, 12 years ago
  • Adds grub2 support (Michael Caerwyn mcaerwyn_at_gmail.com)
  • Property svn:keywords set to Id
File size: 30.6 KB
Line 
1/* subroutines for handling mountlist
2 $Id: libmondo-mountlist.c 2944 2012-02-03 01:12:47Z bruno $
3*/
4
5
6/**
7 * @file
8 * Functions which manipulate the mountlist.
9 */
10
11#include "my-stuff.h"
12#include "mr_mem.h"
13#include "mondostructures.h"
14#include "libmondo-mountlist.h"
15#include "lib-common-externs.h"
16#include "libmondo-raid-EXT.h"
17#include "libmondo-devices-EXT.h"
18#include "libmondo-tools-EXT.h"
19#include "libmondo-string-EXT.h"
20#include "newt-specific-EXT.h"
21
22/*@unused@*/
23//static char cvsid[] = "$Id: libmondo-mountlist.c 2944 2012-02-03 01:12:47Z bruno $";
24
25/* Reference to global bkpinfo */
26extern struct s_bkpinfo *bkpinfo;
27
28/**
29 * @addtogroup mountlistGroup
30 * @{
31 */
32/**
33 * Evaluate a drive within the mountlist for flaws. For example, too many
34 * primary partitions, the first logical isn't 5, duplicate partitions,
35 * ovar-allocated or under-allocated, unsupported format, silly size, or
36 * silly mountpoint. Under FreeBSD, this checks the disklabel too, for the above-mentioned
37 * errors as well as too many BSD partitions (more than 'h').
38 * @param mountlist The mountlist to check.
39 * @param drive The drive to check (e.g. @c /dev/hda).
40 * @return The flaws string found (NULL for success) allocated to be freed
41 * @see evaluate_mountlist
42 */
43char *evaluate_drive_within_mountlist(struct mountlist_itself *mountlist, char *drive)
44#ifdef __FreeBSD__
45{
46// FreeBSD-specific version of evaluate_drive_within_mountlist()
47 /*@ int ************************************************************* */
48 int prev_part_no = 0;
49 int curr_part_no = 0;
50 int pos = 0, npos = 0;
51 int res = 0;
52 int mountpoint_copies = 0;
53 int device_copies = 0;
54 int i = 0;
55 int cur_sp_no = 0;
56 int prev_sp_no = 0;
57 int foundsome = FALSE;
58
59 /*@ buffers ******************************************************** */
60 char tmp = NULL;
61 char device[MAX_STR_LEN];
62 char mountpoint[MAX_STR_LEN];
63
64 char *flaws_str = NULL;
65
66 /*@ long *********************************************************** */
67 long physical_drive_size = 0;
68 long amount_allocated = 0;
69
70 /*@ pointers ******************************************************* */
71 char *part_table_fmt;
72
73 /*@ initialize ***************************************************** */
74 prev_part_no = 0;
75 mr_asprintf(&flaws_str, "%s", "");
76
77
78 physical_drive_size = get_phys_size_of_drive(drive);
79
80 if (physical_drive_size < 0) {
81 mr_asprintf(&tmp, " %s does not exist.", drive);
82 mr_strcat(flaws_str, "%s", tmp);
83 } else {
84 mr_asprintf(&tmp, "%s is %ld MB", drive, physical_drive_size);
85 }
86 log_it(tmp);
87 mr_free(tmp);
88
89
90 /* check DD */
91 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
92 sprintf(device, "%s%c", drive, cur_sp_no);
93 if (find_device_in_mountlist(mountlist, device) >= 0)
94 foundsome = TRUE;
95 }
96 if (foundsome) {
97 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
98 sprintf(device, "%s%c", drive, cur_sp_no);
99 pos = find_device_in_mountlist(mountlist, device);
100 if (pos < 0) {
101 continue;
102 }
103 strcpy(mountpoint, mountlist->el[pos].mountpoint);
104 /* is it too big? */
105 if (curr_part_no > 'h') {
106 mr_asprintf(&tmp, " Can only have up to 'h' in disklabel.");
107 log_it(tmp);
108 mr_strcat(flaws_str, tmp);
109 mr_free(tmp);
110 res++;
111 }
112 /* does partition /dev/adXsYZ exist more than once in the mountlist? */
113 for (i = 0, mountpoint_copies = 0, device_copies = 0;
114 i < mountlist->entries; i++) {
115 if (!strcmp(device, mountlist->el[i].device)) {
116 device_copies++;
117 }
118 }
119 if (device_copies > 1) {
120 mr_asprintf(&tmp, " %s %s's.", number_to_text(device_copies), device);
121 if (!strstr(flaws_str, tmp)) {
122 log_it(tmp);
123 mr_strcat(flaws_str, tmp);
124 res++;
125 }
126 mr_free(tmp);
127 }
128 /* silly partition size? */
129 if (mountlist->el[pos].size < 8192
130 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
131 mr_asprintf(&tmp, " %s is tiny!", device);
132 log_it(tmp);
133 mr_strcat(flaws_str, tmp);
134 mr_free(tmp);
135 res++;
136 }
137 /* mountpoint should begin with / unless it is swap, lvm or raid */
138 if (strcmp(mountlist->el[pos].mountpoint, "swap")
139 && strcmp(mountlist->el[pos].mountpoint, "lvm")
140 && strcmp(mountlist->el[pos].mountpoint, "raid")
141 && strcmp(mountlist->el[pos].mountpoint, "image")
142 && strcmp(mountlist->el[pos].mountpoint, "none")
143 && mountlist->el[pos].mountpoint[0] != '/') {
144 mr_asprintf(&tmp, " %s has a weird mountpoint.", device);
145 log_it(tmp);
146 mr_strcat(flaws_str, tmp);
147 mr_free(tmp);
148 res++;
149 }
150 /* is format sensible? */
151 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
152 mr_asprintf(&tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
153 log_it(tmp);
154 mr_strcat(flaws_str, tmp);
155 mr_free(tmp);
156 res++;
157 }
158 amount_allocated += mountlist->el[pos].size / 1024L;
159 prev_sp_no = cur_sp_no;
160 }
161 }
162
163 npos = pos = 0;
164 for (curr_part_no = 1; curr_part_no < 99; curr_part_no++) {
165 build_partition_name(device, drive, curr_part_no);
166 pos = find_device_in_mountlist(mountlist, device);
167 npos = 0;
168 for (cur_sp_no = 'a'; cur_sp_no <= 'h'; cur_sp_no++) {
169 sprintf(device, "%ss%i%c", device, curr_part_no, cur_sp_no);
170 if (find_device_in_mountlist(mountlist, device) >= 0)
171 npos++;
172 }
173 if (((pos >= 0) || npos) && foundsome) {
174 mr_strcat(flaws_str, " %s has both DD and PC-style partitions.", drive);
175 return(flaws_str); // fatal error
176 }
177
178 build_partition_name(device, drive, curr_part_no);
179 strcpy(mountpoint, mountlist->el[pos].mountpoint);
180 if (pos > 0 && !npos) {
181 /* gap in the partition list? */
182 if (curr_part_no - prev_part_no > 1) {
183 if (prev_part_no == 0) {
184 mr_asprintf(&tmp, " Gap prior to %s.", device);
185 log_it(tmp);
186 mr_strcat(flaws_str, "%s", tmp);
187 mr_free(tmp);
188 res++;
189 } else if (curr_part_no > 5
190 || (curr_part_no <= 4 && prev_part_no > 0)) {
191 mr_asprintf(&tmp, " Gap between %ss%d and %d.", drive, prev_part_no, curr_part_no);
192 log_it(tmp);
193 mr_strcat(flaws_str, "%s", tmp);
194 mr_free(tmp);
195 res++;
196 }
197 }
198 /* GPT allows more than 4 primary partitions */
199 part_table_fmt = which_partition_format(drive);
200 /* no spare primary partitions to help accommodate the logical(s)? */
201 if ((curr_part_no >= 5 && prev_part_no == 4)
202 && (strcmp(part_table_fmt, "MBR") == 0)) {
203 mr_asprintf(&tmp, " Partition %ss4 is occupied.", drive);
204 log_it(tmp);
205 mr_strcat(flaws_str, "%s", tmp);
206 mr_free(tmp);
207 res++;
208 }
209 /* does partition /dev/adXsY exist more than once in the mountlist? */
210 for (i = 0, mountpoint_copies = 0, device_copies = 0;
211 i < mountlist->entries; i++) {
212 if (!strcmp(device, mountlist->el[i].device)) {
213 device_copies++;
214 }
215 }
216 if (device_copies > 1) {
217 mr_asprintf(&tmp, " %s %s's.", number_to_text(device_copies), device);
218 if (!strstr(flaws_str, "%s", tmp)) {
219 log_it(tmp);
220 mr_strcat(flaws_str, "%s", tmp);
221 res++;
222 }
223 mr_free(tmp);
224 }
225 /* silly partition size? */
226 if (mountlist->el[pos].size < 8192
227 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
228 mr_asprintf(&tmp, " %s is tiny!", device);
229 log_it(tmp);
230 mr_strcat(flaws_str, "%s", tmp);
231 mr_free(tmp);
232 res++;
233 }
234 /* mountpoint should begin with / unless it is swap, lvm or raid */
235 if (strcmp(mountlist->el[pos].mountpoint, "swap")
236 && strcmp(mountlist->el[pos].mountpoint, "lvm")
237 && strcmp(mountlist->el[pos].mountpoint, "raid")
238 && strcmp(mountlist->el[pos].mountpoint, "image")
239 && strcmp(mountlist->el[pos].mountpoint, "none")
240 && mountlist->el[pos].mountpoint[0] != '/') {
241 mr_asprintf(&tmp, " %s has a weird mountpoint.", device);
242 log_it(tmp);
243 mr_strcat(flaws_str, "%s", tmp);
244 mr_free(tmp);
245 res++;
246 }
247 /* is format sensible? */
248 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
249 mr_asprintf(&tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
250 log_it(tmp);
251 mr_strcat(flaws_str, "%s", tmp);
252 mr_free(tmp);
253 res++;
254 }
255 } else {
256 /* Check subpartitions */
257 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
258 sprintf(device, "%ss%d%c", drive, curr_part_no, cur_sp_no);
259 pos = find_device_in_mountlist(mountlist, device);
260 if (pos < 0) {
261 continue;
262 }
263 strcpy(mountpoint, mountlist->el[pos].mountpoint);
264 /* is it too big? */
265 if (curr_part_no > 'h') {
266 mr_asprintf(&tmp, " Can only have up to 'h' in disklabel.");
267 log_it(tmp);
268 mr_strcat(flaws_str, "%s", tmp);
269 mr_free(tmp);
270 res++;
271 }
272 /* does partition /dev/adXsYZ exist more than once in the mountlist? */
273 for (i = 0, mountpoint_copies = 0, device_copies = 0;
274 i < mountlist->entries; i++) {
275 if (!strcmp(device, mountlist->el[i].device)) {
276 device_copies++;
277 }
278 }
279 if (device_copies > 1) {
280 mr_asprintf(&tmp, " %s %s's.", number_to_text(device_copies), device);
281 if (!strstr(flaws_str, tmp)) {
282 log_it(tmp);
283 mr_strcat(flaws_str, "%s", tmp);
284 res++;
285 }
286 mr_free(tmp);
287 }
288 /* silly partition size? */
289 if (mountlist->el[pos].size < 8192
290 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
291 mr_asprintf(&tmp, " %s is tiny!", device);
292 log_it(tmp);
293 mr_strcat(flaws_str, "%s", tmp);
294 mr_free(tmp);
295 res++;
296 }
297 /* mountpoint should begin with / unless it is swap, lvm or raid */
298 if (strcmp(mountlist->el[pos].mountpoint, "swap")
299 && strcmp(mountlist->el[pos].mountpoint, "lvm")
300 && strcmp(mountlist->el[pos].mountpoint, "raid")
301 && strcmp(mountlist->el[pos].mountpoint, "image")
302 && strcmp(mountlist->el[pos].mountpoint, "none")
303 && mountlist->el[pos].mountpoint[0] != '/') {
304 mr_asprintf(&tmp, " %s has a weird mountpoint.", device);
305 log_it(tmp);
306 mr_strcat(flaws_str, "%s", tmp);
307 mr_free(tmp);
308 res++;
309 }
310 /* is format sensible? */
311 if (!is_this_a_valid_disk_format
312 (mountlist->el[pos].format)) {
313 mr_asprintf(&tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
314 log_it(tmp);
315 mr_strcat(flaws_str, "%s", tmp);
316 mr_free(tmp);
317 res++;
318 }
319 amount_allocated += mountlist->el[pos].size / 1024L;
320 prev_sp_no = cur_sp_no;
321 }
322 }
323
324 /* OK, continue with main loop */
325 amount_allocated += mountlist->el[pos].size / 1024L;
326
327 /* This should only happen at the end but not tested now */
328 if (amount_allocated > physical_drive_size) {
329 // Used to be +1, but what if you're 1 MB too high?
330 mr_asprintf(&tmp, " %ld MB over-allocated on %s.",
331 amount_allocated - physical_drive_size, drive);
332 log_it(tmp);
333
334 /* Do we have more than 1 MB per partition ? */
335 if (amount_allocated - physical_drive_size <= curr_part_no) {
336 /* Probably a rouding error, just passing over
337 * by reducing the last partition if possible */
338 amount_allocated -= mountlist->el[pos].size / 1024L;
339 mountlist->el[pos].size = (mountlist->el[pos].size - curr_part_no*1024L);
340 amount_allocated += mountlist->el[pos].size / 1024L;
341 } else {
342 mr_strcat(flaws_str, "%s", tmp);
343 res++;
344 }
345 mr_free(tmp);
346 }
347 prev_part_no = curr_part_no;
348 }
349
350 /* Over-allocated the disk? Unallocated space on disk? */
351 if (amount_allocated < physical_drive_size - 1) { /* NOT AN ERROR, JUST A WARNING :-) */
352 mr_asprintf(&tmp, " %ld MB unallocated on %s.",
353 physical_drive_size - amount_allocated, drive);
354 log_it(tmp);
355 mr_strcat(flaws_str, "%s", tmp);
356 mr_free(tmp);
357 }
358 if (res) {
359 return (NULL);
360 } else {
361 return (flaws_str);
362 }
363}
364
365#else
366// Linux-specific version of evaluate_drive_within_mountlist()
367{
368
369 /*@ int ************************************************************* */
370 int prev_part_no = 0;
371 int curr_part_no = 0;
372 int pos = 0;
373 int res = 0;
374 int mountpoint_copies = 0;
375 int device_copies = 0;
376 int i = 0;
377
378 /*@ buffers ******************************************************** */
379 char *tmp = NULL;
380 char *device = NULL;
381 char *flaws_str = NULL;
382
383 /*@ long *********************************************************** */
384 long physical_drive_size = 0L;
385 long amount_allocated = 0L;
386
387 /*@ pointers ******************************************************* */
388 char *part_table_fmt = NULL;
389
390 /*@ initialize ***************************************************** */
391 assert_string_is_neither_NULL_nor_zerolength(drive);
392 assert(mountlist != NULL);
393 mr_asprintf(&flaws_str, "%s", "");
394
395 malloc_string(device);
396 prev_part_no = 0;
397
398 physical_drive_size = get_phys_size_of_drive(drive);
399
400 if (physical_drive_size < 0) {
401 if (strstr(drive,"/dev/dm-") == NULL) {
402 mr_asprintf(&tmp, " %s does not exist.", drive);
403 log_it(tmp);
404 mr_strcat(flaws_str, "%s", tmp);
405 res++;
406 mr_free(tmp);
407 goto endoffunc;
408 } else {
409 mr_asprintf(&tmp, " %s (dm) will be setup later on", drive);
410 log_it(tmp);
411 mr_free(tmp);
412 }
413 } else {
414 mr_asprintf(&tmp, "%s is %ld MB", drive, physical_drive_size);
415 log_it(tmp);
416 mr_free(tmp);
417 }
418
419 for (curr_part_no = 1; curr_part_no < 99; curr_part_no++) {
420 build_partition_name(device, drive, curr_part_no);
421 pos = find_device_in_mountlist(mountlist, device);
422 if (pos < 0) {
423 continue;
424 }
425 log_msg(2, "Processing partition %s on %s #%d in mountlist", device, drive, pos);
426 /* gap in the partition list? */
427 if (curr_part_no - prev_part_no > 1) {
428 if (prev_part_no == 0) {
429 mr_asprintf(&tmp, " Gap prior to %s.", device);
430 log_it(tmp);
431 mr_strcat(flaws_str, "%s", tmp);
432 mr_free(tmp);
433 res++;
434 } else if (curr_part_no > 5
435 || (curr_part_no <= 4 && prev_part_no > 0)) {
436 mr_asprintf(&tmp, " Gap on %s between %d and %d.", drive,
437 prev_part_no, curr_part_no);
438 log_it(tmp);
439 mr_strcat(flaws_str, "%s", tmp);
440 mr_free(tmp);
441 res++;
442 }
443 }
444 /* GPT allows more than 4 primary partitions */
445 part_table_fmt = which_partition_format(drive);
446 /* no spare primary partitions to help accommodate the logical(s)? */
447 if ((curr_part_no >= 5 && prev_part_no == 4)
448 && (strcmp(part_table_fmt, "MBR") == 0)) {
449 mr_asprintf(&tmp, " Partition 4 of %s is occupied.", drive);
450 log_it(tmp);
451 mr_strcat(flaws_str, "%s", tmp);
452 mr_free(tmp);
453 res++;
454 }
455 /* does partition /dev/hdNX exist more than once in the mountlist? */
456 for (i = 0, mountpoint_copies = 0, device_copies = 0;
457 i < mountlist->entries; i++) {
458 if (!strcmp(device, mountlist->el[i].device)) {
459 device_copies++;
460 }
461 }
462 if (device_copies > 1) {
463 mr_asprintf(&tmp, " %s %s's.", number_to_text(device_copies),
464 device);
465 if (!strstr(flaws_str, tmp)) {
466 log_it(tmp);
467 mr_strcat(flaws_str, "%s", tmp);
468 res++;
469 }
470 mr_free(tmp);
471 }
472 /* silly partition size? */
473 if (mountlist->el[pos].size < 8192
474 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
475 mr_asprintf(&tmp, " %s is tiny!", device);
476 log_it(tmp);
477 mr_strcat(flaws_str, "%s", tmp);
478 mr_free(tmp);
479 res++;
480 }
481 /* mountpoint should begin with / unless it is swap, lvm or raid */
482 if (strcmp(mountlist->el[pos].mountpoint, "swap")
483 && strcmp(mountlist->el[pos].mountpoint, "lvm")
484 && strcmp(mountlist->el[pos].mountpoint, "raid")
485 && strcmp(mountlist->el[pos].mountpoint, "image")
486 && mountlist->el[pos].mountpoint[0] != '/') {
487 mr_asprintf(&tmp, " %s has a weird mountpoint.", device);
488 log_it(tmp);
489 mr_strcat(flaws_str, "%s", tmp);
490 mr_free(tmp);
491 res++;
492 }
493 /* is format sensible? */
494 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
495 mr_asprintf(&tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
496 log_it(tmp);
497 mr_strcat(flaws_str, "%s", tmp);
498 mr_free(tmp);
499 res++;
500 }
501 /* OK, continue with main loop */
502 amount_allocated += mountlist->el[pos].size / 1024L;
503 prev_part_no = curr_part_no;
504 }
505
506 /* Over-allocated the disk? Unallocated space on disk? */
507 if (amount_allocated > physical_drive_size + 1) {
508 mr_asprintf(&tmp, " %ld MB over-allocated on %s.",
509 amount_allocated - physical_drive_size, drive);
510 log_it(tmp);
511 mr_strcat(flaws_str, "%s", tmp);
512 mr_free(tmp);
513 res++;
514 } else if (amount_allocated < physical_drive_size - 1) { /* NOT AN ERROR, JUST A WARNING :-) */
515 mr_asprintf(&tmp, " %ld MB unallocated on %s.",
516 physical_drive_size - amount_allocated, drive);
517 log_it(tmp);
518 mr_strcat(flaws_str, "%s", tmp);
519 mr_free(tmp);
520 }
521
522 endoffunc:
523 paranoid_free(device);
524
525 if (res == 0) {
526 mr_free(flaws_str);
527 log_msg(2, "Fine, no error in evaluate_drive_within_mountlist");
528 return (NULL);
529 } else {
530 log_msg(2, "Error in evaluate_drive_within_mountlist: %s", flaws_str);
531 return (flaws_str);
532 }
533}
534#endif
535
536
537/**
538 * Evaluate a whole mountlist for flaws. Calls evaluate_drive_within_mountlist()
539 * for each drive, and then spreads the flaws across three lines.
540 * @param mountlist The mountlist to evaluate.
541 * @return The flaws string (NULL for success).
542 * @see evaluate_drive_within_mountlist
543 */
544char *evaluate_mountlist(struct mountlist_itself *mountlist) {
545
546 /*@ buffer *********************************************************** */
547 struct list_of_disks *drivelist;
548 char *tmp = NULL;
549 char *flaws_str = NULL;
550
551 int currline = 0;
552 int copies = 0;
553 int last_copy = 0;
554
555 /*@ buffetr ********************************************************* */
556 char *curr_mountpoint = NULL;
557
558 /*@ int ************************************************************** */
559 int i = 0;
560
561 /*@ initialize ******************************************************* */
562
563 drivelist = malloc(sizeof(struct list_of_disks));
564 assert(mountlist != NULL);
565
566 make_list_of_drives_in_mountlist(mountlist, drivelist);
567
568 log_it("Evaluating mountlist...");
569
570 for (i = 0; i < drivelist->entries; i++) {
571 if (strstr
572 (drivelist->el[i].device,
573 DONT_KNOW_HOW_TO_EVALUATE_THIS_DEVICE_TYPE)) {
574 mr_asprintf(&tmp, " Not evaluating %s (I don't know how yet)", drivelist->el[i].device);
575 log_it(tmp);
576 paranoid_free(tmp);
577 } else {
578 log_msg(8, "Evaluating drive #%d (%s) within mountlist", i, drivelist->el[i].device);
579 tmp = evaluate_drive_within_mountlist(mountlist, drivelist->el[i].device);
580 }
581 log_msg(8,"Entry: %d (%s)", i, drivelist->el[i].device);
582 /* BCO: tmp can be NULL */
583 if (tmp != NULL) {
584 log_msg(8,"Adding: %s to flaws_str", tmp);
585 mr_strcat(flaws_str, "%s", tmp);
586 paranoid_free(tmp);
587 }
588 }
589
590 /* Look for duplicate mountpoints in mountlist. */
591 for (currline = 0; currline < mountlist->entries; currline++) {
592 mr_asprintf(&curr_mountpoint, "%s", mountlist->el[currline].mountpoint);
593 for (i = 0, copies = 0, last_copy = -1; i < mountlist->entries; i++) {
594 if (!strcmp(mountlist->el[i].mountpoint, curr_mountpoint)
595 && strcmp(mountlist->el[i].mountpoint, "lvm")
596 && strcmp(mountlist->el[i].mountpoint, "swap")) {
597 last_copy = i;
598 copies++;
599 }
600 }
601 if (copies > 1 && last_copy == currline
602 && strcmp(curr_mountpoint, "raid")) {
603 mr_asprintf(&tmp, " %s %s's.", number_to_text(copies), curr_mountpoint);
604 mr_strcat(flaws_str, "%s", tmp);
605 log_msg(8,"Adding: %s to flaws_str", tmp);
606 paranoid_free(tmp);
607 }
608 paranoid_free(curr_mountpoint);
609 }
610
611 return(flaws_str);
612}
613
614
615/**
616 * Find the index number of @p device in the mountlist.
617 * The device given must match @p mountlist->el[N].device exactly, case-sensitive.
618 * @param mountlist The mountlist to search in.
619 * @param device The device to search for.
620 * @return The zero-based index of the device, or -1 if it could not be found.
621 */
622int
623find_device_in_mountlist(struct mountlist_itself *mountlist, char *device)
624{
625
626 /*@ int ************************************************************** */
627 int i = 0;
628
629 assert(mountlist != NULL);
630 assert_string_is_neither_NULL_nor_zerolength(device);
631 for (i = 0;
632 i < mountlist->entries
633 && strcmp(mountlist->el[i].device, device) != 0; i++);
634
635 if (i == mountlist->entries) {
636 return (-1);
637 } else {
638 return (i);
639 }
640}
641
642
643/**
644 * Make a list of the drives mentioned in the mountlist.
645 * @param mountlist The mountlist to examine.
646 * @param drivelist Where to put the list of drives found.
647 * @return The number of physical (non-RAID non-LVM) drives found, or \<= 0 for error.
648 */
649int
650make_list_of_drives_in_mountlist(struct mountlist_itself *mountlist,
651 struct list_of_disks *drivelist)
652{
653
654 /*@ int ************************************************************* */
655 int lino;
656 int noof_drives;
657 int j;
658
659 /*@ buffers ********************************************************* */
660 char *drive = NULL;
661 char *truncdrive = NULL;
662
663 long long size;
664
665 assert(mountlist != NULL);
666 assert(drivelist != NULL);
667 log_it("Making list of drives");
668 for (lino = 0, noof_drives = 0; lino < mountlist->entries; lino++) {
669
670 mr_asprintf(&drive, "%s", mountlist->el[lino].device);
671 if (!strncmp(drive, RAID_DEVICE_STUB, strlen(RAID_DEVICE_STUB))) {
672 log_msg(8, "Not putting %s in list of drives: it's a virtual drive", drive);
673 paranoid_free(drive);
674 continue;
675 }
676
677 size = mountlist->el[lino].size;
678 if (size == 0) {
679 log_msg(8, "Not putting %s in list of drives: it has zero size (maybe an LVM volume)", drive);
680 paranoid_free(drive);
681 continue;
682 }
683
684 log_msg(8, "Putting %s with size %lli in list of drives", drive, size);
685
686 /* memory allocation */
687 truncdrive = truncate_to_drive_name(drive);
688 paranoid_free(drive);
689
690 log_msg(8, "drive truncated to %s", truncdrive);
691
692 for (j = 0;
693 j < noof_drives
694 && strcmp(drivelist->el[j].device, truncdrive) != 0; j++) {
695 continue;
696 }
697 if (j == noof_drives) {
698 strncpy(drivelist->el[noof_drives].device, truncdrive, 63);
699 drivelist->el[noof_drives].device[63] = '\0';
700 log_msg(8,"Adding drive %s to list", drivelist->el[noof_drives].device);
701 noof_drives++;
702 }
703 paranoid_free(truncdrive);
704 if (noof_drives >= MAXIMUM_DISKS_PER_RAID_DEV) {
705 log_msg(0, "Unable to handle mountlist with more than %d lines", MAXIMUM_DISKS_PER_RAID_DEV);
706 log_to_screen("Unable to handle a so big mountlist");
707 finish(1);
708 }
709 }
710 drivelist->entries = noof_drives;
711 log_msg(8, "Made list of %d drives",noof_drives);
712
713 return (noof_drives);
714}
715
716
717/**
718 * Make a list of RAID partitions not currently associated with any RAID device.
719 * The user may add any of these partitions to the RAID device.
720 * @param output_list Where to put the list of unallocated RAID partitions.
721 * @param mountlist The mountlist to examine.
722 * @param raidlist The raidlist to examine.
723 */
724void make_list_of_unallocated_raid_partitions(struct mountlist_itself
725 *output_list,
726 struct mountlist_itself
727 *mountlist,
728 struct raidlist_itself
729 *raidlist)
730{
731
732 /*@ int ************************************************************* */
733 int items = 0;
734 int i = 0;
735 int used_by = 0;
736
737 /*@ buffers ********************************************************* */
738 char *tmp = NULL;
739
740 assert(output_list != NULL);
741 assert(mountlist != NULL);
742 assert(raidlist != NULL);
743 log_it("MLOURP -- starting");
744 items = 0;
745
746
747 for (i = 0; i < mountlist->entries; i++) {
748 if (strstr(mountlist->el[i].mountpoint, "raid")) {
749 used_by =
750 which_raid_device_is_using_this_partition(raidlist,
751 mountlist->el[i].
752 device);
753 if (used_by < 0) {
754 memcpy((void *) &output_list->el[items++],
755 (void *) &mountlist->el[i],
756 sizeof(struct mountlist_line));
757 mr_asprintf(&tmp, "%s is available; user may choose to add it to raid device", output_list->el[items - 1].device);
758 log_it(tmp);
759 paranoid_free(tmp);
760 }
761 }
762 }
763 output_list->entries = items;
764 log_it("MLUORP -- ending");
765}
766
767
768/**
769 * Get the size of a mountlist entry by the @c device field.
770 * @param mountlist The mountlist to search in.
771 * @param device The device to search for
772 * @return The size of the device (in KB), or -1 if it could not be found.
773 */
774long long
775size_of_specific_device_in_mountlist(struct mountlist_itself *mountlist,
776 char *device)
777{
778 /*@ int ************************************************************** */
779 int i = 0;
780
781
782 assert(mountlist != NULL);
783 assert_string_is_neither_NULL_nor_zerolength(device);
784
785 for (i = 0;
786 i < mountlist->entries && strcmp(mountlist->el[i].device, device);
787 i++);
788 if (i == mountlist->entries) {
789 return (-1);
790 } else {
791 return (mountlist->el[i].size);
792 }
793}
794
795
796/**
797 * Load a file on disk into @p mountlist.
798 * The file on disk should consist of multiple lines, each containing 4 or 5
799 * columns: the device, the mountpoint, the filesystem type, the size in kilobytes, and optionally the filesystem label.
800 * Comments begin with a '#' without any leading whitespace. Any duplicate
801 * entries are renamed.
802 * @param mountlist The mountlist to load into.
803 * @param fname The name of the file to load the mountlist from.
804 * @return 0 for success, 1 for failure.
805 */
806int load_mountlist(struct mountlist_itself *mountlist, char *fname)
807{
808 FILE *fin = NULL;
809 /* malloc ** */
810 char *incoming = NULL;
811 char *siz = NULL;
812 char *tmp = NULL;
813 char *p = NULL;
814
815 int items = 0;
816 int j = 0;
817 int res = 0;
818
819 assert(mountlist != NULL);
820 assert_string_is_neither_NULL_nor_zerolength(fname);
821
822 if (!(fin = fopen(fname, "r"))) {
823 log_it("Unable to open mountlist - '%s'", fname);
824 log_to_screen("Cannot open mountlist");
825 return (1);
826 }
827 malloc_string(incoming);
828 malloc_string(siz);
829 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
830 log_it("Loading mountlist...");
831 while (!feof(fin)) {
832#if linux
833 res = sscanf(incoming,
834 "%s %s %s %s %s",
835 mountlist->el[items].device,
836 mountlist->el[items].mountpoint,
837 mountlist->el[items].format,
838 siz, mountlist->el[items].label);
839 if (res < 5) {
840 /* no label found */
841 log_msg(4, "no label found for %s",mountlist->el[items].device);
842 strcpy(mountlist->el[items].label,"");
843 }
844#elif __FreeBSD__
845 res = sscanf(incoming,
846 "%s %s %s %s",
847 mountlist->el[items].device,
848 mountlist->el[items].mountpoint,
849 mountlist->el[items].format, siz);
850 strcpy(mountlist->el[items].label,"");
851#endif
852
853 if (!strcmp(mountlist->el[items].device, "/proc") ||
854 !strcmp(mountlist->el[items].device, "proc") ||
855 !strcmp(mountlist->el[items].device, "/sys") ||
856 !strcmp(mountlist->el[items].device, "sys") ||
857 !strcmp(mountlist->el[items].device, "/run") ||
858 !strcmp(mountlist->el[items].device, "run") ||
859 !strcmp(mountlist->el[items].device, "/devpts") ||
860 !strcmp(mountlist->el[items].device, "devpts")
861 ) {
862 log_msg(1,
863 "Ignoring %s in mountlist - not loading that line :) ",
864 mountlist->el[items].device);
865 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
866 continue;
867 }
868 mountlist->el[items].size = atoll(siz);
869 if (mountlist->el[items].device[0] != '\0'
870 && mountlist->el[items].device[0] != '#') {
871 for (j = 0;
872 j < items
873 && strcmp(mountlist->el[j].device,
874 mountlist->el[items].device); j++);
875 if (j < items) {
876 strcat(mountlist->el[items].device, "_dup");
877 mr_asprintf(&tmp, "Duplicate entry in mountlist - renaming to %s", mountlist->el[items].device);
878 log_it(tmp);
879 paranoid_free(tmp);
880 }
881 mr_asprintf(&tmp, "%s", mountlist->el[items].device);
882 if (strstr(tmp, "/dev/md/")) {
883 log_it("format_device() --- Contracting %s", tmp);
884 p = strrchr(tmp, '/');
885 if (p) {
886 *p = *(p + 1);
887 *(p + 1) = *(p + 2);
888 *(p + 2) = *(p + 3);
889 }
890 log_it("It was %s; it is now %s",
891 mountlist->el[items].device, tmp);
892 strcpy(mountlist->el[items].device, tmp);
893 }
894 paranoid_free(tmp);
895
896 log_it("%s %s %s %lld %s",
897 mountlist->el[items].device,
898 mountlist->el[items].mountpoint,
899 mountlist->el[items].format,
900 mountlist->el[items].size,
901 mountlist->el[items].label);
902 items++;
903 if (items >= MAX_MOUNTLIST_ENTRIES) {
904 log_to_screen("Too many lines in mountlist.. ABORTING");
905 finish(1);
906 }
907 }
908 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
909 }
910 paranoid_fclose(fin);
911 mountlist->entries = items;
912
913 log_it("Mountlist loaded successfully.");
914 log_it("%d entries in mountlist", items);
915
916 paranoid_free(incoming);
917 paranoid_free(siz);
918 return (0);
919}
920
921
922
923/**
924 * Save @p mountlist to a file on disk.
925 * @param mountlist The mountlist to save.
926 * @param fname The file to save it to.
927 * @return 0 for success, 1 for failure.
928 * @see load_mountlist
929 */
930int save_mountlist_to_disk(struct mountlist_itself *mountlist, char *fname)
931{
932 FILE *fout;
933 int i;
934
935 assert(mountlist != NULL);
936 assert_string_is_neither_NULL_nor_zerolength(fname);
937
938 log_it("save_mountlist_to_disk() --- saving to %s", fname);
939 if (!(fout = fopen(fname, "w"))) {
940 log_OS_error("WMTD - Cannot openout mountlist");
941 return (1);
942 }
943 for (i = 0; i < mountlist->entries; i++) {
944 fprintf(fout,
945 "%-15s %-15s %-15s %-15lld %-15s\n",
946 mountlist->el[i].device, mountlist->el[i].mountpoint,
947 mountlist->el[i].format, mountlist->el[i].size,
948 mountlist->el[i].label);
949 }
950 paranoid_fclose(fout);
951 if (!(fout = fopen(MONDO_MNTLISTCHG, "w"))) {
952 log_OS_error("WMTD - Cannot openout "MONDO_MNTLISTCHG);
953 return (1);
954 }
955 fprintf(fout, "the mountlist was changed by mondorestore\n");
956 paranoid_fclose(fout);
957 return (0);
958}
959
960
961/**
962 * Sort the mountlist alphabetically by device.
963 * The sorting is done in-place.
964 * @param mountlist The mountlist to sort.
965 */
966void sort_mountlist_by_device(struct mountlist_itself *mountlist)
967{
968 int diff;
969 int lino = -999;
970
971 assert(mountlist != NULL);
972
973 while (lino < mountlist->entries) {
974 for (lino = 1; lino < mountlist->entries; lino++) {
975 diff =
976 strcmp_inc_numbers(mountlist->el[lino - 1].device,
977 mountlist->el[lino].device);
978 if (diff > 0) {
979 swap_mountlist_entries(mountlist, lino - 1, lino);
980 break;
981 }
982 }
983 }
984}
985
986
987/**
988 * Sort the mountlist alphabetically by mountpoint.
989 * The sorting is done in-place.
990 * @param mountlist The mountlist to sort.
991 * @param reverse If TRUE, then do a reverse sort.
992 */
993void
994sort_mountlist_by_mountpoint(struct mountlist_itself *mountlist,
995 bool reverse)
996{
997 int diff;
998 int lino = -999;
999
1000 assert(mountlist != NULL);
1001
1002 while (lino < mountlist->entries) {
1003 for (lino = 1; lino < mountlist->entries; lino++) {
1004 diff =
1005 strcmp(mountlist->el[lino - 1].mountpoint,
1006 mountlist->el[lino].mountpoint);
1007 if ((diff > 0 && !reverse) || ((diff < 0 && reverse))) {
1008 swap_mountlist_entries(mountlist, lino - 1, lino);
1009 break;
1010 }
1011 }
1012 }
1013}
1014
1015
1016/**
1017 * Swap two entries in the mountlist in-place.
1018 * @param mountlist The mountlist to swap the entries in.
1019 * @param a The index number of the first entry.
1020 * @param b The index number of the second entry.
1021 */
1022void
1023swap_mountlist_entries(struct mountlist_itself *mountlist, int a, int b)
1024{
1025 /*@ mallocs *** */
1026 char *device = NULL;
1027 char *mountpoint = NULL;
1028 char *format = NULL;
1029
1030 long long size;
1031
1032 assert(mountlist != NULL);
1033 assert(a >= 0);
1034 assert(b >= 0);
1035
1036 mr_asprintf(&device, "%s", mountlist->el[a].device);
1037 mr_asprintf(&mountpoint, "%s", mountlist->el[a].mountpoint);
1038 mr_asprintf(&format, "%s", mountlist->el[a].format);
1039
1040 size = mountlist->el[a].size;
1041
1042 strcpy(mountlist->el[a].device, mountlist->el[b].device);
1043 strcpy(mountlist->el[a].mountpoint, mountlist->el[b].mountpoint);
1044 strcpy(mountlist->el[a].format, mountlist->el[b].format);
1045
1046 mountlist->el[a].size = mountlist->el[b].size;
1047
1048 strcpy(mountlist->el[b].device, device);
1049 strcpy(mountlist->el[b].mountpoint, mountpoint);
1050 strcpy(mountlist->el[b].format, format);
1051
1052 mountlist->el[b].size = size;
1053 paranoid_free(device);
1054 paranoid_free(mountpoint);
1055 paranoid_free(format);
1056}
1057
1058/* @} - end of mountlistGroup */
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