source: MondoRescue/branches/3.0/mondo/src/common/libmondo-mountlist.c@ 3185

Last change on this file since 3185 was 3185, checked in by Bruno Cornec, 11 years ago

Simplify the interface of mr_getline and mr_asprintf. With 3.1 compatibility now will allow backports from this branch into 3.0
  • Property svn:keywords set to Id
File size: 30.4 KB
Line 
1/* subroutines for handling mountlist
2 $Id: libmondo-mountlist.c 3185 2013-09-20 12:29:57Z 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 3185 2013-09-20 12:29:57Z 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 device_copies = 0;
53 int i = 0;
54 int cur_sp_no = 0;
55 int prev_sp_no = 0;
56 int foundsome = FALSE;
57
58 /*@ buffers ******************************************************** */
59 char tmp = NULL;
60 char device[MAX_STR_LEN];
61 char mountpoint[MAX_STR_LEN];
62
63 char *flaws_str = NULL;
64
65 /*@ long *********************************************************** */
66 long physical_drive_size = 0;
67 long amount_allocated = 0;
68
69 /*@ pointers ******************************************************* */
70 char *part_table_fmt;
71
72 /*@ initialize ***************************************************** */
73 prev_part_no = 0;
74 mr_asprintf(flaws_str, "%s", "");
75
76
77 physical_drive_size = get_phys_size_of_drive(drive);
78
79 if (physical_drive_size < 0) {
80 mr_asprintf(tmp, " %s does not exist.", drive);
81 mr_strcat(flaws_str, "%s", tmp);
82 } else {
83 mr_asprintf(tmp, "%s is %ld MB", drive, physical_drive_size);
84 }
85 log_it(tmp);
86 mr_free(tmp);
87
88
89 /* check DD */
90 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
91 sprintf(device, "%s%c", drive, cur_sp_no);
92 if (find_device_in_mountlist(mountlist, device) >= 0)
93 foundsome = TRUE;
94 }
95 if (foundsome) {
96 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
97 sprintf(device, "%s%c", drive, cur_sp_no);
98 pos = find_device_in_mountlist(mountlist, device);
99 if (pos < 0) {
100 continue;
101 }
102 strcpy(mountpoint, mountlist->el[pos].mountpoint);
103 /* is it too big? */
104 if (curr_part_no > 'h') {
105 mr_asprintf(tmp, " Can only have up to 'h' in disklabel.");
106 log_it(tmp);
107 mr_strcat(flaws_str, tmp);
108 mr_free(tmp);
109 res++;
110 }
111 /* does partition /dev/adXsYZ exist more than once in the mountlist? */
112 for (i = 0, device_copies = 0;
113 i < mountlist->entries; i++) {
114 if (!strcmp(device, mountlist->el[i].device)) {
115 device_copies++;
116 }
117 }
118 if (device_copies > 1) {
119 mr_asprintf(tmp, " %s %s's.", number_to_text(device_copies), device);
120 if (!strstr(flaws_str, tmp)) {
121 log_it(tmp);
122 mr_strcat(flaws_str, tmp);
123 res++;
124 }
125 mr_free(tmp);
126 }
127 /* silly partition size? */
128 if (mountlist->el[pos].size < 8192
129 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
130 mr_asprintf(tmp, " %s is tiny!", device);
131 log_it(tmp);
132 mr_strcat(flaws_str, tmp);
133 mr_free(tmp);
134 res++;
135 }
136 /* mountpoint should begin with / unless it is swap, lvm or raid */
137 if (strcmp(mountlist->el[pos].mountpoint, "swap")
138 && strcmp(mountlist->el[pos].mountpoint, "lvm")
139 && strcmp(mountlist->el[pos].mountpoint, "raid")
140 && strcmp(mountlist->el[pos].mountpoint, "image")
141 && strcmp(mountlist->el[pos].mountpoint, "none")
142 && mountlist->el[pos].mountpoint[0] != '/') {
143 mr_asprintf(tmp, " %s has a weird mountpoint.", device);
144 log_it(tmp);
145 mr_strcat(flaws_str, tmp);
146 mr_free(tmp);
147 res++;
148 }
149 /* is format sensible? */
150 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
151 mr_asprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
152 log_it(tmp);
153 mr_strcat(flaws_str, tmp);
154 mr_free(tmp);
155 res++;
156 }
157 amount_allocated += mountlist->el[pos].size / 1024L;
158 prev_sp_no = cur_sp_no;
159 }
160 }
161
162 npos = pos = 0;
163 for (curr_part_no = 1; curr_part_no < 99; curr_part_no++) {
164 build_partition_name(device, drive, curr_part_no);
165 pos = find_device_in_mountlist(mountlist, device);
166 npos = 0;
167 for (cur_sp_no = 'a'; cur_sp_no <= 'h'; cur_sp_no++) {
168 sprintf(device, "%ss%i%c", device, curr_part_no, cur_sp_no);
169 if (find_device_in_mountlist(mountlist, device) >= 0)
170 npos++;
171 }
172 if (((pos >= 0) || npos) && foundsome) {
173 mr_strcat(flaws_str, " %s has both DD and PC-style partitions.", drive);
174 return(flaws_str); // fatal error
175 }
176
177 build_partition_name(device, drive, curr_part_no);
178 strcpy(mountpoint, mountlist->el[pos].mountpoint);
179 if (pos > 0 && !npos) {
180 /* gap in the partition list? */
181 if (curr_part_no - prev_part_no > 1) {
182 if (prev_part_no == 0) {
183 mr_asprintf(tmp, " Gap prior to %s.", device);
184 log_it(tmp);
185 mr_strcat(flaws_str, "%s", tmp);
186 mr_free(tmp);
187 res++;
188 } else if (curr_part_no > 5
189 || (curr_part_no <= 4 && prev_part_no > 0)) {
190 mr_asprintf(tmp, " Gap between %ss%d and %d.", drive, prev_part_no, curr_part_no);
191 log_it(tmp);
192 mr_strcat(flaws_str, "%s", tmp);
193 mr_free(tmp);
194 res++;
195 }
196 }
197 /* GPT allows more than 4 primary partitions */
198 part_table_fmt = which_partition_format(drive);
199 /* no spare primary partitions to help accommodate the logical(s)? */
200 if ((curr_part_no >= 5 && prev_part_no == 4)
201 && (strcmp(part_table_fmt, "MBR") == 0)) {
202 mr_asprintf(tmp, " Partition %ss4 is occupied.", drive);
203 log_it(tmp);
204 mr_strcat(flaws_str, "%s", tmp);
205 mr_free(tmp);
206 res++;
207 }
208 /* does partition /dev/adXsY exist more than once in the mountlist? */
209 for (i = 0, device_copies = 0;
210 i < mountlist->entries; i++) {
211 if (!strcmp(device, mountlist->el[i].device)) {
212 device_copies++;
213 }
214 }
215 if (device_copies > 1) {
216 mr_asprintf(tmp, " %s %s's.", number_to_text(device_copies), device);
217 if (!strstr(flaws_str, "%s", tmp)) {
218 log_it(tmp);
219 mr_strcat(flaws_str, "%s", tmp);
220 res++;
221 }
222 mr_free(tmp);
223 }
224 /* silly partition size? */
225 if (mountlist->el[pos].size < 8192
226 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
227 mr_asprintf(tmp, " %s is tiny!", device);
228 log_it(tmp);
229 mr_strcat(flaws_str, "%s", tmp);
230 mr_free(tmp);
231 res++;
232 }
233 /* mountpoint should begin with / unless it is swap, lvm or raid */
234 if (strcmp(mountlist->el[pos].mountpoint, "swap")
235 && strcmp(mountlist->el[pos].mountpoint, "lvm")
236 && strcmp(mountlist->el[pos].mountpoint, "raid")
237 && strcmp(mountlist->el[pos].mountpoint, "image")
238 && strcmp(mountlist->el[pos].mountpoint, "none")
239 && mountlist->el[pos].mountpoint[0] != '/') {
240 mr_asprintf(tmp, " %s has a weird mountpoint.", device);
241 log_it(tmp);
242 mr_strcat(flaws_str, "%s", tmp);
243 mr_free(tmp);
244 res++;
245 }
246 /* is format sensible? */
247 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
248 mr_asprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
249 log_it(tmp);
250 mr_strcat(flaws_str, "%s", tmp);
251 mr_free(tmp);
252 res++;
253 }
254 } else {
255 /* Check subpartitions */
256 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
257 sprintf(device, "%ss%d%c", drive, curr_part_no, cur_sp_no);
258 pos = find_device_in_mountlist(mountlist, device);
259 if (pos < 0) {
260 continue;
261 }
262 strcpy(mountpoint, mountlist->el[pos].mountpoint);
263 /* is it too big? */
264 if (curr_part_no > 'h') {
265 mr_asprintf(tmp, " Can only have up to 'h' in disklabel.");
266 log_it(tmp);
267 mr_strcat(flaws_str, "%s", tmp);
268 mr_free(tmp);
269 res++;
270 }
271 /* does partition /dev/adXsYZ exist more than once in the mountlist? */
272 for (i = 0, device_copies = 0;
273 i < mountlist->entries; i++) {
274 if (!strcmp(device, mountlist->el[i].device)) {
275 device_copies++;
276 }
277 }
278 if (device_copies > 1) {
279 mr_asprintf(tmp, " %s %s's.", number_to_text(device_copies), device);
280 if (!strstr(flaws_str, tmp)) {
281 log_it(tmp);
282 mr_strcat(flaws_str, "%s", tmp);
283 res++;
284 }
285 mr_free(tmp);
286 }
287 /* silly partition size? */
288 if (mountlist->el[pos].size < 8192
289 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
290 mr_asprintf(tmp, " %s is tiny!", device);
291 log_it(tmp);
292 mr_strcat(flaws_str, "%s", tmp);
293 mr_free(tmp);
294 res++;
295 }
296 /* mountpoint should begin with / unless it is swap, lvm or raid */
297 if (strcmp(mountlist->el[pos].mountpoint, "swap")
298 && strcmp(mountlist->el[pos].mountpoint, "lvm")
299 && strcmp(mountlist->el[pos].mountpoint, "raid")
300 && strcmp(mountlist->el[pos].mountpoint, "image")
301 && strcmp(mountlist->el[pos].mountpoint, "none")
302 && mountlist->el[pos].mountpoint[0] != '/') {
303 mr_asprintf(tmp, " %s has a weird mountpoint.", device);
304 log_it(tmp);
305 mr_strcat(flaws_str, "%s", tmp);
306 mr_free(tmp);
307 res++;
308 }
309 /* is format sensible? */
310 if (!is_this_a_valid_disk_format
311 (mountlist->el[pos].format)) {
312 mr_asprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
313 log_it(tmp);
314 mr_strcat(flaws_str, "%s", tmp);
315 mr_free(tmp);
316 res++;
317 }
318 amount_allocated += mountlist->el[pos].size / 1024L;
319 prev_sp_no = cur_sp_no;
320 }
321 }
322
323 /* OK, continue with main loop */
324 amount_allocated += mountlist->el[pos].size / 1024L;
325
326 /* This should only happen at the end but not tested now */
327 if (amount_allocated > physical_drive_size) {
328 // Used to be +1, but what if you're 1 MB too high?
329 mr_asprintf(tmp, " %ld MB over-allocated on %s.",
330 amount_allocated - physical_drive_size, drive);
331 log_it(tmp);
332
333 /* Do we have more than 1 MB per partition ? */
334 if (amount_allocated - physical_drive_size <= curr_part_no) {
335 /* Probably a rouding error, just passing over
336 * by reducing the last partition if possible */
337 amount_allocated -= mountlist->el[pos].size / 1024L;
338 mountlist->el[pos].size = (mountlist->el[pos].size - curr_part_no*1024L);
339 amount_allocated += mountlist->el[pos].size / 1024L;
340 } else {
341 mr_strcat(flaws_str, "%s", tmp);
342 res++;
343 }
344 mr_free(tmp);
345 }
346 prev_part_no = curr_part_no;
347 }
348
349 /* Over-allocated the disk? Unallocated space on disk? */
350 if (amount_allocated < physical_drive_size - 1) { /* NOT AN ERROR, JUST A WARNING :-) */
351 mr_asprintf(tmp, " %ld MB unallocated on %s.",
352 physical_drive_size - amount_allocated, drive);
353 log_it(tmp);
354 mr_strcat(flaws_str, "%s", tmp);
355 mr_free(tmp);
356 }
357 if (res) {
358 return (NULL);
359 } else {
360 return (flaws_str);
361 }
362}
363
364#else
365// Linux-specific version of evaluate_drive_within_mountlist()
366{
367
368 /*@ int ************************************************************* */
369 int prev_part_no = 0;
370 int curr_part_no = 0;
371 int pos = 0;
372 int res = 0;
373 int device_copies = 0;
374 int i = 0;
375
376 /*@ buffers ******************************************************** */
377 char *tmp = NULL;
378 char *device = NULL;
379 char *flaws_str = NULL;
380
381 /*@ long *********************************************************** */
382 long physical_drive_size = 0L;
383 long amount_allocated = 0L;
384
385 /*@ pointers ******************************************************* */
386 char *part_table_fmt = NULL;
387
388 /*@ initialize ***************************************************** */
389 assert_string_is_neither_NULL_nor_zerolength(drive);
390 assert(mountlist != NULL);
391 mr_asprintf(flaws_str, "%s", "");
392
393 malloc_string(device);
394 prev_part_no = 0;
395
396 physical_drive_size = get_phys_size_of_drive(drive);
397
398 if (physical_drive_size < 0) {
399 if (strstr(drive,"/dev/dm-") == NULL) {
400 mr_asprintf(tmp, " %s does not exist.", drive);
401 log_it(tmp);
402 mr_strcat(flaws_str, "%s", tmp);
403 res++;
404 mr_free(tmp);
405 goto endoffunc;
406 } else {
407 mr_asprintf(tmp, " %s (dm) will be setup later on", drive);
408 log_it(tmp);
409 mr_free(tmp);
410 }
411 } else {
412 mr_asprintf(tmp, "%s is %ld MB", drive, physical_drive_size);
413 log_it(tmp);
414 mr_free(tmp);
415 }
416
417 for (curr_part_no = 1; curr_part_no < 99; curr_part_no++) {
418 build_partition_name(device, drive, curr_part_no);
419 pos = find_device_in_mountlist(mountlist, device);
420 if (pos < 0) {
421 continue;
422 }
423 log_msg(2, "Processing partition %s on %s #%d in mountlist", device, drive, pos);
424 /* gap in the partition list? */
425 if (curr_part_no - prev_part_no > 1) {
426 if (prev_part_no == 0) {
427 mr_asprintf(tmp, " Gap prior to %s.", device);
428 log_it(tmp);
429 mr_strcat(flaws_str, "%s", tmp);
430 mr_free(tmp);
431 res++;
432 } else if (curr_part_no > 5
433 || (curr_part_no <= 4 && prev_part_no > 0)) {
434 mr_asprintf(tmp, " Gap on %s between %d and %d.", drive,
435 prev_part_no, curr_part_no);
436 log_it(tmp);
437 mr_strcat(flaws_str, "%s", tmp);
438 mr_free(tmp);
439 res++;
440 }
441 }
442 /* GPT allows more than 4 primary partitions */
443 part_table_fmt = which_partition_format(drive);
444 /* no spare primary partitions to help accommodate the logical(s)? */
445 if ((curr_part_no >= 5 && prev_part_no == 4)
446 && (strcmp(part_table_fmt, "MBR") == 0)) {
447 mr_asprintf(tmp, " Partition 4 of %s is occupied.", drive);
448 log_it(tmp);
449 mr_strcat(flaws_str, "%s", tmp);
450 mr_free(tmp);
451 res++;
452 }
453 /* does partition /dev/hdNX exist more than once in the mountlist? */
454 for (i = 0, device_copies = 0;
455 i < mountlist->entries; i++) {
456 if (!strcmp(device, mountlist->el[i].device)) {
457 device_copies++;
458 }
459 }
460 if (device_copies > 1) {
461 mr_asprintf(tmp, " %s %s's.", number_to_text(device_copies),
462 device);
463 if (!strstr(flaws_str, tmp)) {
464 log_it(tmp);
465 mr_strcat(flaws_str, "%s", tmp);
466 res++;
467 }
468 mr_free(tmp);
469 }
470 /* silly partition size? */
471 if (mountlist->el[pos].size < 8192
472 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
473 mr_asprintf(tmp, " %s is tiny!", device);
474 log_it(tmp);
475 mr_strcat(flaws_str, "%s", tmp);
476 mr_free(tmp);
477 res++;
478 }
479 /* mountpoint should begin with / unless it is swap, lvm or raid */
480 if (strcmp(mountlist->el[pos].mountpoint, "swap")
481 && strcmp(mountlist->el[pos].mountpoint, "lvm")
482 && strcmp(mountlist->el[pos].mountpoint, "raid")
483 && strcmp(mountlist->el[pos].mountpoint, "image")
484 && mountlist->el[pos].mountpoint[0] != '/') {
485 mr_asprintf(tmp, " %s has a weird mountpoint.", device);
486 log_it(tmp);
487 mr_strcat(flaws_str, "%s", tmp);
488 mr_free(tmp);
489 res++;
490 }
491 /* is format sensible? */
492 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
493 mr_asprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
494 log_it(tmp);
495 mr_strcat(flaws_str, "%s", tmp);
496 mr_free(tmp);
497 res++;
498 }
499 /* OK, continue with main loop */
500 amount_allocated += mountlist->el[pos].size / 1024L;
501 prev_part_no = curr_part_no;
502 }
503
504 /* Over-allocated the disk? Unallocated space on disk? */
505 if (amount_allocated > physical_drive_size + 1) {
506 mr_asprintf(tmp, " %ld MB over-allocated on %s.",
507 amount_allocated - physical_drive_size, drive);
508 log_it(tmp);
509 mr_strcat(flaws_str, "%s", tmp);
510 mr_free(tmp);
511 res++;
512 } else if (amount_allocated < physical_drive_size - 1) { /* NOT AN ERROR, JUST A WARNING :-) */
513 mr_asprintf(tmp, " %ld MB unallocated on %s.",
514 physical_drive_size - amount_allocated, drive);
515 log_it(tmp);
516 mr_strcat(flaws_str, "%s", tmp);
517 mr_free(tmp);
518 }
519
520 endoffunc:
521 paranoid_free(device);
522
523 if (res == 0) {
524 mr_free(flaws_str);
525 log_msg(2, "Fine, no error in evaluate_drive_within_mountlist");
526 return (NULL);
527 } else {
528 log_msg(2, "Error in evaluate_drive_within_mountlist: %s", flaws_str);
529 return (flaws_str);
530 }
531}
532#endif
533
534
535/**
536 * Evaluate a whole mountlist for flaws. Calls evaluate_drive_within_mountlist()
537 * for each drive, and then spreads the flaws across three lines.
538 * @param mountlist The mountlist to evaluate.
539 * @return The flaws string (NULL for success).
540 * @see evaluate_drive_within_mountlist
541 */
542char *evaluate_mountlist(struct mountlist_itself *mountlist) {
543
544 /*@ buffer *********************************************************** */
545 struct list_of_disks *drivelist;
546 char *tmp = NULL;
547 char *flaws_str = NULL;
548
549 int currline = 0;
550 int copies = 0;
551 int last_copy = 0;
552
553 /*@ buffetr ********************************************************* */
554 char *curr_mountpoint = NULL;
555
556 /*@ int ************************************************************** */
557 int i = 0;
558
559 /*@ initialize ******************************************************* */
560
561 drivelist = malloc(sizeof(struct list_of_disks));
562 assert(mountlist != NULL);
563
564 make_list_of_drives_in_mountlist(mountlist, drivelist);
565
566 log_it("Evaluating mountlist...");
567
568 for (i = 0; i < drivelist->entries; i++) {
569 if (strstr
570 (drivelist->el[i].device,
571 DONT_KNOW_HOW_TO_EVALUATE_THIS_DEVICE_TYPE)) {
572 mr_asprintf(tmp, " Not evaluating %s (I don't know how yet)", drivelist->el[i].device);
573 log_it(tmp);
574 paranoid_free(tmp);
575 } else {
576 log_msg(8, "Evaluating drive #%d (%s) within mountlist", i, drivelist->el[i].device);
577 tmp = evaluate_drive_within_mountlist(mountlist, drivelist->el[i].device);
578 }
579 log_msg(8,"Entry: %d (%s)", i, drivelist->el[i].device);
580 /* BCO: tmp can be NULL */
581 if (tmp != NULL) {
582 log_msg(8,"Adding: %s to flaws_str", tmp);
583 mr_strcat(flaws_str, "%s", tmp);
584 paranoid_free(tmp);
585 }
586 }
587
588 /* Look for duplicate mountpoints in mountlist. */
589 for (currline = 0; currline < mountlist->entries; currline++) {
590 mr_asprintf(curr_mountpoint, "%s", mountlist->el[currline].mountpoint);
591 for (i = 0, copies = 0, last_copy = -1; i < mountlist->entries; i++) {
592 if (!strcmp(mountlist->el[i].mountpoint, curr_mountpoint)
593 && strcmp(mountlist->el[i].mountpoint, "lvm")
594 && strcmp(mountlist->el[i].mountpoint, "swap")) {
595 last_copy = i;
596 copies++;
597 }
598 }
599 if (copies > 1 && last_copy == currline
600 && strcmp(curr_mountpoint, "raid")) {
601 mr_asprintf(tmp, " %s %s's.", number_to_text(copies), curr_mountpoint);
602 mr_strcat(flaws_str, "%s", tmp);
603 log_msg(8,"Adding: %s to flaws_str", tmp);
604 paranoid_free(tmp);
605 }
606 paranoid_free(curr_mountpoint);
607 }
608
609 return(flaws_str);
610}
611
612
613/**
614 * Find the index number of @p device in the mountlist.
615 * The device given must match @p mountlist->el[N].device exactly, case-sensitive.
616 * @param mountlist The mountlist to search in.
617 * @param device The device to search for.
618 * @return The zero-based index of the device, or -1 if it could not be found.
619 */
620int
621find_device_in_mountlist(struct mountlist_itself *mountlist, char *device)
622{
623
624 /*@ int ************************************************************** */
625 int i = 0;
626
627 assert(mountlist != NULL);
628 assert_string_is_neither_NULL_nor_zerolength(device);
629 for (i = 0;
630 i < mountlist->entries
631 && strcmp(mountlist->el[i].device, device) != 0; i++);
632
633 if (i == mountlist->entries) {
634 return (-1);
635 } else {
636 return (i);
637 }
638}
639
640
641/**
642 * Make a list of the drives mentioned in the mountlist.
643 * @param mountlist The mountlist to examine.
644 * @param drivelist Where to put the list of drives found.
645 * @return The number of physical (non-RAID non-LVM) drives found, or \<= 0 for error.
646 */
647int
648make_list_of_drives_in_mountlist(struct mountlist_itself *mountlist,
649 struct list_of_disks *drivelist)
650{
651
652 /*@ int ************************************************************* */
653 int lino;
654 int noof_drives;
655 int j;
656
657 /*@ buffers ********************************************************* */
658 char *drive = NULL;
659 char *truncdrive = NULL;
660
661 long long size;
662
663 assert(mountlist != NULL);
664 assert(drivelist != NULL);
665 log_it("Making list of drives");
666 for (lino = 0, noof_drives = 0; lino < mountlist->entries; lino++) {
667
668 mr_asprintf(drive, "%s", mountlist->el[lino].device);
669 if (!strncmp(drive, RAID_DEVICE_STUB, strlen(RAID_DEVICE_STUB))) {
670 log_msg(8, "Not putting %s in list of drives: it's a virtual drive", drive);
671 paranoid_free(drive);
672 continue;
673 }
674
675 size = mountlist->el[lino].size;
676 if (size == 0) {
677 log_msg(8, "Not putting %s in list of drives: it has zero size (maybe an LVM volume)", drive);
678 paranoid_free(drive);
679 continue;
680 }
681
682 log_msg(8, "Putting %s with size %lli in list of drives", drive, size);
683
684 /* memory allocation */
685 truncdrive = truncate_to_drive_name(drive);
686 paranoid_free(drive);
687
688 log_msg(8, "drive truncated to %s", truncdrive);
689
690 for (j = 0;
691 j < noof_drives
692 && strcmp(drivelist->el[j].device, truncdrive) != 0; j++) {
693 continue;
694 }
695 if (j == noof_drives) {
696 strncpy(drivelist->el[noof_drives].device, truncdrive, 63);
697 drivelist->el[noof_drives].device[63] = '\0';
698 log_msg(8,"Adding drive %s to list", drivelist->el[noof_drives].device);
699 noof_drives++;
700 }
701 paranoid_free(truncdrive);
702 if (noof_drives >= MAXIMUM_DISKS_PER_RAID_DEV) {
703 log_msg(0, "Unable to handle mountlist with more than %d lines", MAXIMUM_DISKS_PER_RAID_DEV);
704 log_to_screen("Unable to handle a so big mountlist");
705 finish(1);
706 }
707 }
708 drivelist->entries = noof_drives;
709 log_msg(8, "Made list of %d drives",noof_drives);
710
711 return (noof_drives);
712}
713
714
715/**
716 * Make a list of RAID partitions not currently associated with any RAID device.
717 * The user may add any of these partitions to the RAID device.
718 * @param output_list Where to put the list of unallocated RAID partitions.
719 * @param mountlist The mountlist to examine.
720 * @param raidlist The raidlist to examine.
721 */
722void make_list_of_unallocated_raid_partitions(struct mountlist_itself
723 *output_list,
724 struct mountlist_itself
725 *mountlist,
726 struct raidlist_itself
727 *raidlist)
728{
729
730 /*@ int ************************************************************* */
731 int items = 0;
732 int i = 0;
733 int used_by = 0;
734
735 /*@ buffers ********************************************************* */
736 char *tmp = NULL;
737
738 assert(output_list != NULL);
739 assert(mountlist != NULL);
740 assert(raidlist != NULL);
741 log_it("MLOURP -- starting");
742 items = 0;
743
744
745 for (i = 0; i < mountlist->entries; i++) {
746 if (strstr(mountlist->el[i].mountpoint, "raid")) {
747 used_by =
748 which_raid_device_is_using_this_partition(raidlist,
749 mountlist->el[i].
750 device);
751 if (used_by < 0) {
752 memcpy((void *) &output_list->el[items++],
753 (void *) &mountlist->el[i],
754 sizeof(struct mountlist_line));
755 mr_asprintf(tmp, "%s is available; user may choose to add it to raid device", output_list->el[items - 1].device);
756 log_it(tmp);
757 paranoid_free(tmp);
758 }
759 }
760 }
761 output_list->entries = items;
762 log_it("MLUORP -- ending");
763}
764
765
766/**
767 * Get the size of a mountlist entry by the @c device field.
768 * @param mountlist The mountlist to search in.
769 * @param device The device to search for
770 * @return The size of the device (in KB), or -1 if it could not be found.
771 */
772long long
773size_of_specific_device_in_mountlist(struct mountlist_itself *mountlist,
774 char *device)
775{
776 /*@ int ************************************************************** */
777 int i = 0;
778
779
780 assert(mountlist != NULL);
781 assert_string_is_neither_NULL_nor_zerolength(device);
782
783 for (i = 0;
784 i < mountlist->entries && strcmp(mountlist->el[i].device, device);
785 i++);
786 if (i == mountlist->entries) {
787 return (-1);
788 } else {
789 return (mountlist->el[i].size);
790 }
791}
792
793
794/**
795 * Load a file on disk into @p mountlist.
796 * The file on disk should consist of multiple lines, each containing 4 or 5
797 * columns: the device, the mountpoint, the filesystem type, the size in kilobytes, and optionally the filesystem label.
798 * Comments begin with a '#' without any leading whitespace. Any duplicate
799 * entries are renamed.
800 * @param mountlist The mountlist to load into.
801 * @param fname The name of the file to load the mountlist from.
802 * @return 0 for success, 1 for failure.
803 */
804int load_mountlist(struct mountlist_itself *mountlist, char *fname)
805{
806 FILE *fin = NULL;
807 /* malloc ** */
808 char *incoming = NULL;
809 char *siz = NULL;
810 char *tmp = NULL;
811 char *p = NULL;
812 char *q = NULL;
813
814 int items = 0;
815 int j = 0;
816 int res = 0;
817
818 assert(mountlist != NULL);
819 assert_string_is_neither_NULL_nor_zerolength(fname);
820
821 if (!(fin = fopen(fname, "r"))) {
822 log_it("Unable to open mountlist - '%s'", fname);
823 log_to_screen("Cannot open mountlist");
824 return (1);
825 }
826 malloc_string(incoming);
827 malloc_string(siz);
828 q = fgets(incoming, MAX_STR_LEN - 1, fin);
829 log_it("Loading mountlist...");
830 while (!feof(fin) && (q != NULL)) {
831#if linux
832 res = sscanf(incoming,
833 "%s %s %s %s %s",
834 mountlist->el[items].device,
835 mountlist->el[items].mountpoint,
836 mountlist->el[items].format,
837 siz, mountlist->el[items].label);
838 if (res < 5) {
839 /* no label found */
840 log_msg(4, "no label found for %s",mountlist->el[items].device);
841 strcpy(mountlist->el[items].label,"");
842 }
843#elif __FreeBSD__
844 res = sscanf(incoming,
845 "%s %s %s %s",
846 mountlist->el[items].device,
847 mountlist->el[items].mountpoint,
848 mountlist->el[items].format, siz);
849 strcpy(mountlist->el[items].label,"");
850#endif
851
852 if (!strcmp(mountlist->el[items].device, "/proc") ||
853 !strcmp(mountlist->el[items].device, "proc") ||
854 !strcmp(mountlist->el[items].device, "/sys") ||
855 !strcmp(mountlist->el[items].device, "sys") ||
856 !strcmp(mountlist->el[items].device, "/run") ||
857 !strcmp(mountlist->el[items].device, "run") ||
858 !strcmp(mountlist->el[items].device, "/devpts") ||
859 !strcmp(mountlist->el[items].device, "devpts")
860 ) {
861 log_msg(1,
862 "Ignoring %s in mountlist - not loading that line :) ",
863 mountlist->el[items].device);
864 q = fgets(incoming, MAX_STR_LEN - 1, fin);
865 continue;
866 }
867 mountlist->el[items].size = atoll(siz);
868 if (mountlist->el[items].device[0] != '\0'
869 && mountlist->el[items].device[0] != '#') {
870 for (j = 0;
871 j < items
872 && strcmp(mountlist->el[j].device,
873 mountlist->el[items].device); j++);
874 if (j < items) {
875 strcat(mountlist->el[items].device, "_dup");
876 mr_asprintf(tmp, "Duplicate entry in mountlist - renaming to %s", mountlist->el[items].device);
877 log_it(tmp);
878 paranoid_free(tmp);
879 }
880 mr_asprintf(tmp, "%s", mountlist->el[items].device);
881 if (strstr(tmp, "/dev/md/")) {
882 log_it("format_device() --- Contracting %s", tmp);
883 p = strrchr(tmp, '/');
884 if (p) {
885 *p = *(p + 1);
886 *(p + 1) = *(p + 2);
887 *(p + 2) = *(p + 3);
888 }
889 log_it("It was %s; it is now %s",
890 mountlist->el[items].device, tmp);
891 strcpy(mountlist->el[items].device, tmp);
892 }
893 paranoid_free(tmp);
894
895 log_it("%s %s %s %lld %s",
896 mountlist->el[items].device,
897 mountlist->el[items].mountpoint,
898 mountlist->el[items].format,
899 mountlist->el[items].size,
900 mountlist->el[items].label);
901 items++;
902 if (items >= MAX_MOUNTLIST_ENTRIES) {
903 log_to_screen("Too many lines in mountlist.. ABORTING");
904 finish(1);
905 }
906 }
907 q = fgets(incoming, MAX_STR_LEN - 1, fin);
908 }
909 paranoid_fclose(fin);
910 mountlist->entries = items;
911
912 log_it("Mountlist loaded successfully.");
913 log_it("%d entries in mountlist", items);
914
915 paranoid_free(incoming);
916 paranoid_free(siz);
917 return (0);
918}
919
920
921
922/**
923 * Save @p mountlist to a file on disk.
924 * @param mountlist The mountlist to save.
925 * @param fname The file to save it to.
926 * @return 0 for success, 1 for failure.
927 * @see load_mountlist
928 */
929int save_mountlist_to_disk(struct mountlist_itself *mountlist, char *fname)
930{
931 FILE *fout;
932 int i;
933
934 assert(mountlist != NULL);
935 assert_string_is_neither_NULL_nor_zerolength(fname);
936
937 log_it("save_mountlist_to_disk() --- saving to %s", fname);
938 if (!(fout = fopen(fname, "w"))) {
939 log_OS_error("WMTD - Cannot openout mountlist");
940 return (1);
941 }
942 for (i = 0; i < mountlist->entries; i++) {
943 fprintf(fout,
944 "%-15s %-15s %-15s %-15lld %-15s\n",
945 mountlist->el[i].device, mountlist->el[i].mountpoint,
946 mountlist->el[i].format, mountlist->el[i].size,
947 mountlist->el[i].label);
948 }
949 paranoid_fclose(fout);
950 if (!(fout = fopen(MONDO_MNTLISTCHG, "w"))) {
951 log_OS_error("WMTD - Cannot openout "MONDO_MNTLISTCHG);
952 return (1);
953 }
954 fprintf(fout, "the mountlist was changed by mondorestore\n");
955 paranoid_fclose(fout);
956 return (0);
957}
958
959
960/**
961 * Sort the mountlist alphabetically by device.
962 * The sorting is done in-place.
963 * @param mountlist The mountlist to sort.
964 */
965void sort_mountlist_by_device(struct mountlist_itself *mountlist)
966{
967 int diff;
968 int lino = -999;
969
970 assert(mountlist != NULL);
971
972 while (lino < mountlist->entries) {
973 for (lino = 1; lino < mountlist->entries; lino++) {
974 diff =
975 strcmp_inc_numbers(mountlist->el[lino - 1].device,
976 mountlist->el[lino].device);
977 if (diff > 0) {
978 swap_mountlist_entries(mountlist, lino - 1, lino);
979 break;
980 }
981 }
982 }
983}
984
985
986/**
987 * Sort the mountlist alphabetically by mountpoint.
988 * The sorting is done in-place.
989 * @param mountlist The mountlist to sort.
990 * @param reverse If TRUE, then do a reverse sort.
991 */
992void
993sort_mountlist_by_mountpoint(struct mountlist_itself *mountlist,
994 bool reverse)
995{
996 int diff;
997 int lino = -999;
998
999 assert(mountlist != NULL);
1000
1001 while (lino < mountlist->entries) {
1002 for (lino = 1; lino < mountlist->entries; lino++) {
1003 diff =
1004 strcmp(mountlist->el[lino - 1].mountpoint,
1005 mountlist->el[lino].mountpoint);
1006 if ((diff > 0 && !reverse) || ((diff < 0 && reverse))) {
1007 swap_mountlist_entries(mountlist, lino - 1, lino);
1008 break;
1009 }
1010 }
1011 }
1012}
1013
1014
1015/**
1016 * Swap two entries in the mountlist in-place.
1017 * @param mountlist The mountlist to swap the entries in.
1018 * @param a The index number of the first entry.
1019 * @param b The index number of the second entry.
1020 */
1021void
1022swap_mountlist_entries(struct mountlist_itself *mountlist, int a, int b)
1023{
1024 /*@ mallocs *** */
1025 char *device = NULL;
1026 char *mountpoint = NULL;
1027 char *format = NULL;
1028
1029 long long size;
1030
1031 assert(mountlist != NULL);
1032 assert(a >= 0);
1033 assert(b >= 0);
1034
1035 mr_asprintf(device, "%s", mountlist->el[a].device);
1036 mr_asprintf(mountpoint, "%s", mountlist->el[a].mountpoint);
1037 mr_asprintf(format, "%s", mountlist->el[a].format);
1038
1039 size = mountlist->el[a].size;
1040
1041 strcpy(mountlist->el[a].device, mountlist->el[b].device);
1042 strcpy(mountlist->el[a].mountpoint, mountlist->el[b].mountpoint);
1043 strcpy(mountlist->el[a].format, mountlist->el[b].format);
1044
1045 mountlist->el[a].size = mountlist->el[b].size;
1046
1047 strcpy(mountlist->el[b].device, device);
1048 strcpy(mountlist->el[b].mountpoint, mountpoint);
1049 strcpy(mountlist->el[b].format, format);
1050
1051 mountlist->el[b].size = size;
1052 paranoid_free(device);
1053 paranoid_free(mountpoint);
1054 paranoid_free(format);
1055}
1056
1057/* @} - end of mountlistGroup */
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