source: MondoRescue/branches/3.2/mondo/src/common/libmondo-mountlist.c@ 3279

Last change on this file since 3279 was 3279, checked in by Bruno Cornec, 10 years ago
  • flaws_str should be NULL if no error detected not ""
  • Try to redirect back fd at restore time before launching mondorestore to avoid garbage in log
  • Property svn:keywords set to Id
File size: 30.1 KB
Line 
1/* subroutines for handling mountlist
2 $Id: libmondo-mountlist.c 3279 2014-04-30 11:05:17Z 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 3279 2014-04-30 11:05:17Z 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
62 char *flaws_str = NULL;
63
64 /*@ long *********************************************************** */
65 long physical_drive_size = 0;
66 long amount_allocated = 0;
67
68 /*@ pointers ******************************************************* */
69 char *part_table_fmt = NULL;
70
71 /*@ initialize ***************************************************** */
72 prev_part_no = 0;
73 mr_asprintf(flaws_str, "%s", "");
74
75
76 physical_drive_size = get_phys_size_of_drive(drive);
77
78 if (physical_drive_size < 0) {
79 mr_asprintf(tmp, " %s does not exist.", drive);
80 mr_strcat(flaws_str, "%s", tmp);
81 } else {
82 mr_asprintf(tmp, "%s is %ld MB", drive, physical_drive_size);
83 }
84 log_it(tmp);
85 mr_free(tmp);
86
87
88 /* check DD */
89 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
90 sprintf(device, "%s%c", drive, cur_sp_no);
91 if (find_device_in_mountlist(mountlist, device) >= 0)
92 foundsome = TRUE;
93 }
94 if (foundsome) {
95 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
96 sprintf(device, "%s%c", drive, cur_sp_no);
97 pos = find_device_in_mountlist(mountlist, device);
98 if (pos < 0) {
99 continue;
100 }
101 /* is it too big? */
102 if (curr_part_no > 'h') {
103 mr_asprintf(tmp, " Can only have up to 'h' in disklabel.");
104 log_it(tmp);
105 mr_strcat(flaws_str, tmp);
106 mr_free(tmp);
107 res++;
108 }
109 /* does partition /dev/adXsYZ exist more than once in the mountlist? */
110 for (i = 0, device_copies = 0;
111 i < mountlist->entries; i++) {
112 if (!strcmp(device, mountlist->el[i].device)) {
113 device_copies++;
114 }
115 }
116 if (device_copies > 1) {
117 mr_asprintf(tmp, " %s %s's.", number_to_text(device_copies), device);
118 if (!strstr(flaws_str, tmp)) {
119 log_it(tmp);
120 mr_strcat(flaws_str, tmp);
121 res++;
122 }
123 mr_free(tmp);
124 }
125 /* silly partition size? */
126 if (mountlist->el[pos].size < 8192
127 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
128 mr_asprintf(tmp, " %s is tiny!", device);
129 log_it(tmp);
130 mr_strcat(flaws_str, tmp);
131 mr_free(tmp);
132 res++;
133 }
134 /* mountpoint should begin with / unless it is swap, lvm or raid */
135 if (strcmp(mountlist->el[pos].mountpoint, "swap")
136 && strcmp(mountlist->el[pos].mountpoint, "lvm")
137 && strcmp(mountlist->el[pos].mountpoint, "raid")
138 && strcmp(mountlist->el[pos].mountpoint, "image")
139 && strcmp(mountlist->el[pos].mountpoint, "none")
140 && mountlist->el[pos].mountpoint[0] != '/') {
141 mr_asprintf(tmp, " %s has a weird mountpoint.", device);
142 log_it(tmp);
143 mr_strcat(flaws_str, tmp);
144 mr_free(tmp);
145 res++;
146 }
147 /* is format sensible? */
148 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
149 mr_asprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
150 log_it(tmp);
151 mr_strcat(flaws_str, tmp);
152 mr_free(tmp);
153 res++;
154 }
155 amount_allocated += mountlist->el[pos].size / 1024L;
156 prev_sp_no = cur_sp_no;
157 }
158 }
159
160 npos = pos = 0;
161 for (curr_part_no = 1; curr_part_no < 99; curr_part_no++) {
162 build_partition_name(device, drive, curr_part_no);
163 pos = find_device_in_mountlist(mountlist, device);
164 npos = 0;
165 for (cur_sp_no = 'a'; cur_sp_no <= 'h'; cur_sp_no++) {
166 sprintf(device, "%ss%i%c", device, curr_part_no, cur_sp_no);
167 if (find_device_in_mountlist(mountlist, device) >= 0)
168 npos++;
169 }
170 if (((pos >= 0) || npos) && foundsome) {
171 mr_strcat(flaws_str, " %s has both DD and PC-style partitions.", drive);
172 return(flaws_str); // fatal error
173 }
174
175 build_partition_name(device, drive, curr_part_no);
176 if (pos > 0 && !npos) {
177 /* gap in the partition list? */
178 if (curr_part_no - prev_part_no > 1) {
179 if (prev_part_no == 0) {
180 mr_asprintf(tmp, " Gap prior to %s.", device);
181 log_it(tmp);
182 mr_strcat(flaws_str, "%s", tmp);
183 mr_free(tmp);
184 res++;
185 } else if (curr_part_no > 5
186 || (curr_part_no <= 4 && prev_part_no > 0)) {
187 mr_asprintf(tmp, " Gap between %ss%d and %d.", drive, prev_part_no, curr_part_no);
188 log_it(tmp);
189 mr_strcat(flaws_str, "%s", tmp);
190 mr_free(tmp);
191 res++;
192 }
193 }
194 /* GPT allows more than 4 primary partitions */
195 part_table_fmt = which_partition_format(drive);
196 /* no spare primary partitions to help accommodate the logical(s)? */
197 if ((curr_part_no >= 5 && prev_part_no == 4) && (strcmp(part_table_fmt, "MBR") == 0)) {
198 mr_asprintf(tmp, " Partition %ss4 is occupied.", drive);
199 log_it(tmp);
200 mr_strcat(flaws_str, "%s", tmp);
201 mr_free(tmp);
202 res++;
203 }
204 mr_free(part_table_fmt);
205
206 /* does partition /dev/adXsY exist more than once in the mountlist? */
207 for (i = 0, device_copies = 0;
208 i < mountlist->entries; i++) {
209 if (!strcmp(device, mountlist->el[i].device)) {
210 device_copies++;
211 }
212 }
213 if (device_copies > 1) {
214 mr_asprintf(tmp, " %s %s's.", number_to_text(device_copies), device);
215 if (!strstr(flaws_str, "%s", tmp)) {
216 log_it(tmp);
217 mr_strcat(flaws_str, "%s", tmp);
218 res++;
219 }
220 mr_free(tmp);
221 }
222 /* silly partition size? */
223 if (mountlist->el[pos].size < 8192
224 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
225 mr_asprintf(tmp, " %s is tiny!", device);
226 log_it(tmp);
227 mr_strcat(flaws_str, "%s", tmp);
228 mr_free(tmp);
229 res++;
230 }
231 /* mountpoint should begin with / unless it is swap, lvm or raid */
232 if (strcmp(mountlist->el[pos].mountpoint, "swap")
233 && strcmp(mountlist->el[pos].mountpoint, "lvm")
234 && strcmp(mountlist->el[pos].mountpoint, "raid")
235 && strcmp(mountlist->el[pos].mountpoint, "image")
236 && strcmp(mountlist->el[pos].mountpoint, "none")
237 && mountlist->el[pos].mountpoint[0] != '/') {
238 mr_asprintf(tmp, " %s has a weird mountpoint.", device);
239 log_it(tmp);
240 mr_strcat(flaws_str, "%s", tmp);
241 mr_free(tmp);
242 res++;
243 }
244 /* is format sensible? */
245 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
246 mr_asprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
247 log_it(tmp);
248 mr_strcat(flaws_str, "%s", tmp);
249 mr_free(tmp);
250 res++;
251 }
252 } else {
253 /* Check subpartitions */
254 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
255 sprintf(device, "%ss%d%c", drive, curr_part_no, cur_sp_no);
256 pos = find_device_in_mountlist(mountlist, device);
257 if (pos < 0) {
258 continue;
259 }
260 /* is it too big? */
261 if (curr_part_no > 'h') {
262 mr_asprintf(tmp, " Can only have up to 'h' in disklabel.");
263 log_it(tmp);
264 mr_strcat(flaws_str, "%s", tmp);
265 mr_free(tmp);
266 res++;
267 }
268 /* does partition /dev/adXsYZ exist more than once in the mountlist? */
269 for (i = 0, device_copies = 0;
270 i < mountlist->entries; i++) {
271 if (!strcmp(device, mountlist->el[i].device)) {
272 device_copies++;
273 }
274 }
275 if (device_copies > 1) {
276 mr_asprintf(tmp, " %s %s's.", number_to_text(device_copies), device);
277 if (!strstr(flaws_str, tmp)) {
278 log_it(tmp);
279 mr_strcat(flaws_str, "%s", tmp);
280 res++;
281 }
282 mr_free(tmp);
283 }
284 /* silly partition size? */
285 if (mountlist->el[pos].size < 8192
286 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
287 mr_asprintf(tmp, " %s is tiny!", device);
288 log_it(tmp);
289 mr_strcat(flaws_str, "%s", tmp);
290 mr_free(tmp);
291 res++;
292 }
293 /* mountpoint should begin with / unless it is swap, lvm or raid */
294 if (strcmp(mountlist->el[pos].mountpoint, "swap")
295 && strcmp(mountlist->el[pos].mountpoint, "lvm")
296 && strcmp(mountlist->el[pos].mountpoint, "raid")
297 && strcmp(mountlist->el[pos].mountpoint, "image")
298 && strcmp(mountlist->el[pos].mountpoint, "none")
299 && mountlist->el[pos].mountpoint[0] != '/') {
300 mr_asprintf(tmp, " %s has a weird mountpoint.", device);
301 log_it(tmp);
302 mr_strcat(flaws_str, "%s", tmp);
303 mr_free(tmp);
304 res++;
305 }
306 /* is format sensible? */
307 if (!is_this_a_valid_disk_format
308 (mountlist->el[pos].format)) {
309 mr_asprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
310 log_it(tmp);
311 mr_strcat(flaws_str, "%s", tmp);
312 mr_free(tmp);
313 res++;
314 }
315 amount_allocated += mountlist->el[pos].size / 1024L;
316 prev_sp_no = cur_sp_no;
317 }
318 }
319
320 /* OK, continue with main loop */
321 amount_allocated += mountlist->el[pos].size / 1024L;
322
323 /* This should only happen at the end but not tested now */
324 if (amount_allocated > physical_drive_size) {
325 // Used to be +1, but what if you're 1 MB too high?
326 mr_asprintf(tmp, " %ld MB over-allocated on %s.",amount_allocated - physical_drive_size, drive);
327 log_it(tmp);
328
329 /* Do we have more than 1 MB per partition ? */
330 if (amount_allocated - physical_drive_size <= curr_part_no) {
331 /* Probably a rouding error, just passing over
332 * by reducing the last partition if possible */
333 amount_allocated -= mountlist->el[pos].size / 1024L;
334 mountlist->el[pos].size = (mountlist->el[pos].size - curr_part_no*1024L);
335 amount_allocated += mountlist->el[pos].size / 1024L;
336 } else {
337 mr_strcat(flaws_str, "%s", tmp);
338 res++;
339 }
340 mr_free(tmp);
341 }
342 prev_part_no = curr_part_no;
343 }
344
345 /* Over-allocated the disk? Unallocated space on disk? */
346 if (amount_allocated > physical_drive_size) // Used to be +1, but what if you're 1 MB too high?
347 {
348 mr_asprintf(tmp, " %ld MB over-allocated on %s.", amount_allocated - physical_drive_size, drive);
349 log_it(tmp);
350 mr_strcat(flaws_str, "%s", tmp);
351 mr_free(tmp);
352 res++;
353 } else if (amount_allocated < physical_drive_size - 1) { /* NOT AN ERROR, JUST A WARNING :-) */
354 mr_asprintf(tmp, " %ld MB unallocated on %s.", physical_drive_size - amount_allocated, drive);
355 log_it(tmp);
356 mr_strcat(flaws_str, "%s", tmp);
357 mr_free(tmp);
358 }
359 if (res) {
360 return (NULL);
361 } else {
362 return (flaws_str);
363 }
364}
365
366#else
367// Linux-specific version of evaluate_drive_within_mountlist()
368{
369
370 /*@ int ************************************************************* */
371 int prev_part_no = 0;
372 int curr_part_no = 0;
373 int pos = 0;
374 int res = 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 log_it(" %s (dm) will be setup later on", drive);
410 }
411 } else {
412 log_it("%s is %ld MB", drive, physical_drive_size);
413 }
414
415 /* GPT allows more than 4 primary partitions - detect partition type now */
416 part_table_fmt = which_partition_format(drive);
417
418 for (curr_part_no = 1; curr_part_no < 99; curr_part_no++) {
419 build_partition_name(device, drive, curr_part_no);
420 pos = find_device_in_mountlist(mountlist, device);
421 if (pos < 0) {
422 continue;
423 }
424 log_msg(2, "Processing partition %s on %s #%d in mountlist", device, drive, pos);
425 /* gap in the partition list? */
426 if (curr_part_no - prev_part_no > 1) {
427 if (prev_part_no == 0) {
428 mr_asprintf(tmp, " Gap prior to %s.", device);
429 log_it(tmp);
430 mr_strcat(flaws_str, "%s", tmp);
431 mr_free(tmp);
432 res++;
433 } else if (curr_part_no > 5 || (curr_part_no <= 4 && prev_part_no > 0)) {
434 mr_asprintf(tmp, " Gap on %s between %d and %d.", drive, prev_part_no, curr_part_no);
435 log_it(tmp);
436 mr_strcat(flaws_str, "%s", tmp);
437 mr_free(tmp);
438 res++;
439 }
440 }
441 /* no spare primary partitions to help accommodate the logical(s)? */
442 if ((curr_part_no >= 5 && prev_part_no == 4) && (strcmp(part_table_fmt, "MBR") == 0)) {
443 mr_asprintf(tmp, " Partition 4 of %s is occupied.", drive);
444 log_it(tmp);
445 mr_strcat(flaws_str, "%s", tmp);
446 mr_free(tmp);
447 res++;
448 }
449
450 /* does partition /dev/hdNX exist more than once in the mountlist? */
451 for (i = 0, device_copies = 0;
452 i < mountlist->entries; i++) {
453 if (!strcmp(device, mountlist->el[i].device)) {
454 device_copies++;
455 }
456 }
457 if (device_copies > 1) {
458 mr_asprintf(tmp, " %s %s's.", number_to_text(device_copies), device);
459 if (!strstr(flaws_str, tmp)) {
460 log_it(tmp);
461 mr_strcat(flaws_str, "%s", tmp);
462 res++;
463 }
464 mr_free(tmp);
465 }
466 /* silly partition size? */
467 if (mountlist->el[pos].size < 8192
468 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
469 mr_asprintf(tmp, " %s is tiny!", device);
470 log_it(tmp);
471 mr_strcat(flaws_str, "%s", tmp);
472 mr_free(tmp);
473 res++;
474 }
475 /* mountpoint should begin with / unless it is swap, lvm or raid */
476 if (strcmp(mountlist->el[pos].mountpoint, "swap")
477 && strcmp(mountlist->el[pos].mountpoint, "lvm")
478 && strcmp(mountlist->el[pos].mountpoint, "raid")
479 && strcmp(mountlist->el[pos].mountpoint, "image")
480 && mountlist->el[pos].mountpoint[0] != '/') {
481 mr_asprintf(tmp, " %s has a weird mountpoint.", device);
482 log_it(tmp);
483 mr_strcat(flaws_str, "%s", tmp);
484 mr_free(tmp);
485 res++;
486 }
487 /* is format sensible? */
488 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
489 mr_asprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
490 log_it(tmp);
491 mr_strcat(flaws_str, "%s", tmp);
492 mr_free(tmp);
493 res++;
494 }
495 /* OK, continue with main loop */
496 amount_allocated += mountlist->el[pos].size / 1024L;
497 prev_part_no = curr_part_no;
498 }
499 mr_free(part_table_fmt);
500
501 /* Over-allocated the disk? Unallocated space on disk? */
502 if (amount_allocated > physical_drive_size + 1) {
503 mr_asprintf(tmp, " %ld MB over-allocated on %s.", amount_allocated - physical_drive_size, drive);
504 log_it(tmp);
505 mr_strcat(flaws_str, "%s", tmp);
506 mr_free(tmp);
507 res++;
508 } else if (amount_allocated < physical_drive_size - 1) { /* NOT AN ERROR, JUST A WARNING :-) */
509 mr_asprintf(tmp, " %ld MB unallocated on %s.", physical_drive_size - amount_allocated, drive);
510 log_it(tmp);
511 mr_strcat(flaws_str, "%s", tmp);
512 mr_free(tmp);
513 }
514
515 endoffunc:
516 paranoid_free(device);
517
518 if (res == 0) {
519 mr_free(flaws_str);
520 log_msg(2, "Fine, no error in evaluate_drive_within_mountlist");
521 return (NULL);
522 } else {
523 log_msg(2, "Error in evaluate_drive_within_mountlist: %s", flaws_str);
524 return (flaws_str);
525 }
526}
527#endif
528
529
530/**
531 * Evaluate a whole mountlist for flaws. Calls evaluate_drive_within_mountlist()
532 * for each drive, and then spreads the flaws across three lines.
533 * @param mountlist The mountlist to evaluate.
534 * @return The flaws string (NULL for success).
535 * @see evaluate_drive_within_mountlist
536 */
537char *evaluate_mountlist(struct mountlist_itself *mountlist) {
538
539 /*@ buffer *********************************************************** */
540 struct list_of_disks *drivelist;
541 char *tmp = NULL;
542 char *flaws_str = NULL;
543
544 int currline = 0;
545 int copies = 0;
546 int last_copy = 0;
547
548 /*@ buffetr ********************************************************* */
549 char *curr_mountpoint = NULL;
550
551 /*@ int ************************************************************** */
552 int i = 0;
553
554 /*@ initialize ******************************************************* */
555
556 drivelist = malloc(sizeof(struct list_of_disks));
557 assert(mountlist != NULL);
558
559 make_list_of_drives_in_mountlist(mountlist, drivelist);
560
561 log_it("Evaluating mountlist...");
562
563 for (i = 0; i < drivelist->entries; i++) {
564 if (strstr(drivelist->el[i].device, DONT_KNOW_HOW_TO_EVALUATE_THIS_DEVICE_TYPE)) {
565 log_it(" Not evaluating %s (I don't know how yet)", drivelist->el[i].device);
566 } else {
567 log_msg(8, "Evaluating drive #%d (%s) within mountlist", i, drivelist->el[i].device);
568 tmp = evaluate_drive_within_mountlist(mountlist, drivelist->el[i].device);
569 }
570 log_msg(8,"Entry: %d (%s)", i, drivelist->el[i].device);
571 /* BCO: tmp can be NULL */
572 if (tmp != NULL) {
573 log_msg(8,"Adding: %s to flaws_str", tmp);
574 if (flaws_str != NULL) {
575 mr_strcat(flaws_str, "%s", tmp);
576 } else {
577 mr_asprintf(flaws_str, "%s", tmp);
578 }
579 mr_free(tmp);
580 }
581 }
582
583 /* Look for duplicate mountpoints in mountlist. */
584 for (currline = 0; currline < mountlist->entries; currline++) {
585 mr_asprintf(curr_mountpoint, "%s", mountlist->el[currline].mountpoint);
586 for (i = 0, copies = 0, last_copy = -1; i < mountlist->entries; i++) {
587 if (!strcmp(mountlist->el[i].mountpoint, curr_mountpoint)
588 && strcmp(mountlist->el[i].mountpoint, "lvm")
589 && strcmp(mountlist->el[i].mountpoint, "swap")) {
590 last_copy = i;
591 copies++;
592 }
593 }
594 if (copies > 1 && last_copy == currline && strcmp(curr_mountpoint, "raid")) {
595 mr_asprintf(tmp, " %s %s's.", number_to_text(copies), curr_mountpoint);
596 log_msg(8,"Adding: %s to flaws_str", tmp);
597 if (flaws_str != NULL) {
598 mr_strcat(flaws_str, "%s", tmp);
599 } else {
600 mr_asprintf(flaws_str, "%s", tmp);
601 }
602 mr_free(tmp);
603 }
604 mr_free(curr_mountpoint);
605 }
606 return(flaws_str);
607}
608
609
610/**
611 * Find the index number of @p device in the mountlist.
612 * The device given must match @p mountlist->el[N].device exactly, case-sensitive.
613 * @param mountlist The mountlist to search in.
614 * @param device The device to search for.
615 * @return The zero-based index of the device, or -1 if it could not be found.
616 */
617int
618find_device_in_mountlist(struct mountlist_itself *mountlist, char *device)
619{
620
621 /*@ int ************************************************************** */
622 int i = 0;
623
624 assert(mountlist != NULL);
625 assert_string_is_neither_NULL_nor_zerolength(device);
626 for (i = 0;
627 i < mountlist->entries
628 && strcmp(mountlist->el[i].device, device) != 0; i++);
629
630 if (i == mountlist->entries) {
631 return (-1);
632 } else {
633 return (i);
634 }
635}
636
637
638/**
639 * Make a list of the drives mentioned in the mountlist.
640 * @param mountlist The mountlist to examine.
641 * @param drivelist Where to put the list of drives found.
642 * @return The number of physical (non-RAID non-LVM) drives found, or \<= 0 for error.
643 */
644int
645make_list_of_drives_in_mountlist(struct mountlist_itself *mountlist,
646 struct list_of_disks *drivelist)
647{
648
649 /*@ int ************************************************************* */
650 int lino;
651 int noof_drives;
652 int j;
653
654 /*@ buffers ********************************************************* */
655 char *drive = NULL;
656 char *truncdrive = NULL;
657
658 long long size;
659
660 assert(mountlist != NULL);
661 assert(drivelist != NULL);
662 log_it("Making list of drives");
663 for (lino = 0, noof_drives = 0; lino < mountlist->entries; lino++) {
664
665 mr_asprintf(drive, "%s", mountlist->el[lino].device);
666 if (!strncmp(drive, RAID_DEVICE_STUB, strlen(RAID_DEVICE_STUB))) {
667 log_msg(8, "Not putting %s in list of drives: it's a virtual drive", drive);
668 mr_free(drive);
669 continue;
670 }
671
672 size = mountlist->el[lino].size;
673 if (size == 0) {
674 log_msg(8, "Not putting %s in list of drives: it has zero size (maybe an LVM volume)", drive);
675 mr_free(drive);
676 continue;
677 }
678
679 log_msg(8, "Putting %s with size %lli in list of drives", drive, size);
680
681 /* memory allocation */
682 truncdrive = truncate_to_drive_name(drive);
683 mr_free(drive);
684
685 log_msg(8, "drive truncated to %s", truncdrive);
686
687 for (j = 0;
688 j < noof_drives
689 && strcmp(drivelist->el[j].device, truncdrive) != 0; j++) {
690 continue;
691 }
692 if (j == noof_drives) {
693 strncpy(drivelist->el[noof_drives].device, truncdrive, 63);
694 drivelist->el[noof_drives].device[63] = '\0';
695 log_msg(8,"Adding drive %s to list", drivelist->el[noof_drives].device);
696 noof_drives++;
697 }
698 paranoid_free(truncdrive);
699 if (noof_drives >= MAXIMUM_DISKS_PER_RAID_DEV) {
700 log_msg(0, "Unable to handle mountlist with more than %d lines", MAXIMUM_DISKS_PER_RAID_DEV);
701 log_to_screen("Unable to handle a so big mountlist");
702 finish(1);
703 }
704 }
705 drivelist->entries = noof_drives;
706 log_msg(8, "Made list of %d drives",noof_drives);
707
708 return (noof_drives);
709}
710
711
712/**
713 * Make a list of RAID partitions not currently associated with any RAID device.
714 * The user may add any of these partitions to the RAID device.
715 * @param output_list Where to put the list of unallocated RAID partitions.
716 * @param mountlist The mountlist to examine.
717 * @param raidlist The raidlist to examine.
718 */
719void make_list_of_unallocated_raid_partitions(struct mountlist_itself
720 *output_list,
721 struct mountlist_itself
722 *mountlist,
723 struct raidlist_itself
724 *raidlist)
725{
726
727 /*@ int ************************************************************* */
728 int items = 0;
729 int i = 0;
730 int used_by = 0;
731
732 assert(output_list != NULL);
733 assert(mountlist != NULL);
734 assert(raidlist != NULL);
735 log_it("MLOURP -- starting");
736 items = 0;
737
738
739 for (i = 0; i < mountlist->entries; i++) {
740 if (strstr(mountlist->el[i].mountpoint, "raid")) {
741 used_by = which_raid_device_is_using_this_partition(raidlist, mountlist->el[i].device);
742 if (used_by < 0) {
743 memcpy((void *) &output_list->el[items++],
744 (void *) &mountlist->el[i],
745 sizeof(struct mountlist_line));
746 log_it("%s is available; user may choose to add it to raid device", output_list->el[items - 1].device);
747 }
748 }
749 }
750 output_list->entries = items;
751 log_it("MLUORP -- ending");
752}
753
754
755/**
756 * Get the size of a mountlist entry by the @c device field.
757 * @param mountlist The mountlist to search in.
758 * @param device The device to search for
759 * @return The size of the device (in KB), or -1 if it could not be found.
760 */
761long long
762size_of_specific_device_in_mountlist(struct mountlist_itself *mountlist,
763 char *device)
764{
765 /*@ int ************************************************************** */
766 int i = 0;
767
768
769 assert(mountlist != NULL);
770 assert_string_is_neither_NULL_nor_zerolength(device);
771
772 for (i = 0;
773 i < mountlist->entries && strcmp(mountlist->el[i].device, device);
774 i++);
775 if (i == mountlist->entries) {
776 return (-1);
777 } else {
778 return (mountlist->el[i].size);
779 }
780}
781
782
783/**
784 * Load a file on disk into @p mountlist.
785 * The file on disk should consist of multiple lines, each containing 4 or 5
786 * columns: the device, the mountpoint, the filesystem type, the size in kilobytes, and optionally the filesystem label.
787 * Comments begin with a '#' without any leading whitespace. Any duplicate
788 * entries are renamed.
789 * @param mountlist The mountlist to load into.
790 * @param fname The name of the file to load the mountlist from.
791 * @return 0 for success, 1 for failure.
792 */
793int load_mountlist(struct mountlist_itself *mountlist, char *fname)
794{
795 FILE *fin = NULL;
796 /* malloc ** */
797 char *incoming = NULL;
798 char *siz = NULL;
799 char *tmp = NULL;
800 char *p = NULL;
801
802 int items = 0;
803 int j = 0;
804 int res = 0;
805
806 assert(mountlist != NULL);
807 assert_string_is_neither_NULL_nor_zerolength(fname);
808
809 if (!(fin = fopen(fname, "r"))) {
810 log_it("Unable to open mountlist - '%s'", fname);
811 log_to_screen("Cannot open mountlist");
812 return (1);
813 }
814 malloc_string(siz);
815 log_it("Loading mountlist...");
816 mr_getline(incoming, fin);
817 while (!feof(fin)) {
818#if linux
819 res = sscanf(incoming, "%s %s %s %s %s", mountlist->el[items].device, mountlist->el[items].mountpoint, mountlist->el[items].format, siz, mountlist->el[items].label);
820 if (res < 5) {
821 /* no label found */
822 log_msg(4, "no label found for %s",mountlist->el[items].device);
823 strcpy(mountlist->el[items].label,"");
824 }
825#elif __FreeBSD__
826 res = sscanf(incoming, "%s %s %s %s", mountlist->el[items].device, mountlist->el[items].mountpoint, mountlist->el[items].format, siz);
827 strcpy(mountlist->el[items].label,"");
828#endif
829
830 if (!strcmp(mountlist->el[items].device, "/proc") ||
831 !strcmp(mountlist->el[items].device, "proc") ||
832 !strcmp(mountlist->el[items].device, "/sys") ||
833 !strcmp(mountlist->el[items].device, "sys") ||
834 !strcmp(mountlist->el[items].device, "/run") ||
835 !strcmp(mountlist->el[items].device, "run") ||
836 !strcmp(mountlist->el[items].device, "/devpts") ||
837 !strcmp(mountlist->el[items].device, "devpts")
838 ) {
839 log_msg(1, "Ignoring %s in mountlist - not loading that line :) ", mountlist->el[items].device);
840 mr_free(incoming);
841 mr_getline(incoming, fin);
842 continue;
843 }
844 mountlist->el[items].size = atoll(siz);
845 if (mountlist->el[items].device[0] != '\0'
846 && mountlist->el[items].device[0] != '#') {
847 for (j = 0;
848 j < items
849 && strcmp(mountlist->el[j].device,
850 mountlist->el[items].device); j++);
851 if (j < items) {
852 strcat(mountlist->el[items].device, "_dup");
853 log_it("Duplicate entry in mountlist - renaming to %s", mountlist->el[items].device);
854 }
855 mr_asprintf(tmp, "%s", mountlist->el[items].device);
856 if (strstr(tmp, "/dev/md/")) {
857 log_it("format_device() --- Contracting %s", tmp);
858 p = strrchr(tmp, '/');
859 if (p) {
860 *p = *(p + 1);
861 *(p + 1) = *(p + 2);
862 *(p + 2) = *(p + 3);
863 }
864 log_it("It was %s; it is now %s", mountlist->el[items].device, tmp);
865 strcpy(mountlist->el[items].device, tmp);
866 }
867 paranoid_free(tmp);
868
869 log_it("%s %s %s %lld %s", mountlist->el[items].device, mountlist->el[items].mountpoint, mountlist->el[items].format, mountlist->el[items].size, mountlist->el[items].label);
870 items++;
871 if (items >= MAX_MOUNTLIST_ENTRIES) {
872 log_to_screen("Too many lines in mountlist.. ABORTING");
873 finish(1);
874 }
875 }
876 mr_free(incoming);
877 mr_getline(incoming, fin);
878 }
879 mr_free(incoming);
880 paranoid_fclose(fin);
881 mountlist->entries = items;
882
883 log_it("Mountlist loaded successfully.");
884 log_it("%d entries in mountlist", items);
885
886 paranoid_free(siz);
887 return (0);
888}
889
890
891
892/**
893 * Save @p mountlist to a file on disk.
894 * @param mountlist The mountlist to save.
895 * @param fname The file to save it to.
896 * @return 0 for success, 1 for failure.
897 * @see load_mountlist
898 */
899int save_mountlist_to_disk(struct mountlist_itself *mountlist, char *fname)
900{
901 FILE *fout;
902 int i;
903
904 assert(mountlist != NULL);
905 assert_string_is_neither_NULL_nor_zerolength(fname);
906
907 log_it("save_mountlist_to_disk() --- saving to %s", fname);
908 if (!(fout = fopen(fname, "w"))) {
909 log_OS_error("WMTD - Cannot openout mountlist");
910 return (1);
911 }
912 for (i = 0; i < mountlist->entries; i++) {
913 fprintf(fout,
914 "%-15s %-15s %-15s %-15lld %-15s\n",
915 mountlist->el[i].device, mountlist->el[i].mountpoint,
916 mountlist->el[i].format, mountlist->el[i].size,
917 mountlist->el[i].label);
918 }
919 paranoid_fclose(fout);
920 if (!(fout = fopen(MONDO_MNTLISTCHG, "w"))) {
921 log_OS_error("WMTD - Cannot openout "MONDO_MNTLISTCHG);
922 return (1);
923 }
924 fprintf(fout, "the mountlist was changed by mondorestore\n");
925 paranoid_fclose(fout);
926 return (0);
927}
928
929
930/**
931 * Sort the mountlist alphabetically by device.
932 * The sorting is done in-place.
933 * @param mountlist The mountlist to sort.
934 */
935void sort_mountlist_by_device(struct mountlist_itself *mountlist)
936{
937 int diff;
938 int lino = -999;
939
940 assert(mountlist != NULL);
941
942 while (lino < mountlist->entries) {
943 for (lino = 1; lino < mountlist->entries; lino++) {
944 diff =
945 strcmp_inc_numbers(mountlist->el[lino - 1].device,
946 mountlist->el[lino].device);
947 if (diff > 0) {
948 swap_mountlist_entries(mountlist, lino - 1, lino);
949 break;
950 }
951 }
952 }
953}
954
955
956/**
957 * Sort the mountlist alphabetically by mountpoint.
958 * The sorting is done in-place.
959 * @param mountlist The mountlist to sort.
960 * @param reverse If TRUE, then do a reverse sort.
961 */
962void
963sort_mountlist_by_mountpoint(struct mountlist_itself *mountlist,
964 bool reverse)
965{
966 int diff;
967 int lino = -999;
968
969 assert(mountlist != NULL);
970
971 while (lino < mountlist->entries) {
972 for (lino = 1; lino < mountlist->entries; lino++) {
973 diff =
974 strcmp(mountlist->el[lino - 1].mountpoint,
975 mountlist->el[lino].mountpoint);
976 if ((diff > 0 && !reverse) || ((diff < 0 && reverse))) {
977 swap_mountlist_entries(mountlist, lino - 1, lino);
978 break;
979 }
980 }
981 }
982}
983
984
985/**
986 * Swap two entries in the mountlist in-place.
987 * @param mountlist The mountlist to swap the entries in.
988 * @param a The index number of the first entry.
989 * @param b The index number of the second entry.
990 */
991void
992swap_mountlist_entries(struct mountlist_itself *mountlist, int a, int b)
993{
994 /*@ mallocs *** */
995 char *device = NULL;
996 char *mountpoint = NULL;
997 char *format = NULL;
998
999 long long size;
1000
1001 assert(mountlist != NULL);
1002 assert(a >= 0);
1003 assert(b >= 0);
1004
1005 mr_asprintf(device, "%s", mountlist->el[a].device);
1006 mr_asprintf(mountpoint, "%s", mountlist->el[a].mountpoint);
1007 mr_asprintf(format, "%s", mountlist->el[a].format);
1008
1009 size = mountlist->el[a].size;
1010
1011 strcpy(mountlist->el[a].device, mountlist->el[b].device);
1012 strcpy(mountlist->el[a].mountpoint, mountlist->el[b].mountpoint);
1013 strcpy(mountlist->el[a].format, mountlist->el[b].format);
1014
1015 mountlist->el[a].size = mountlist->el[b].size;
1016
1017 strcpy(mountlist->el[b].device, device);
1018 strcpy(mountlist->el[b].mountpoint, mountpoint);
1019 strcpy(mountlist->el[b].format, format);
1020
1021 mountlist->el[b].size = size;
1022 mr_free(device);
1023 mr_free(mountpoint);
1024 mr_free(format);
1025}
1026
1027/* @} - end of mountlistGroup */
Note: See TracBrowser for help on using the repository browser.