source: MondoRescue/branches/2.2.9/mondo/src/common/libmondo-mountlist.c@ 2211

Last change on this file since 2211 was 2211, checked in by Bruno Cornec, 15 years ago

r3089@localhost: bruno | 2009-05-18 06:41:05 +0200

  • move call to asprintf to call to mr_asprintf (suppress a compiler warning)
  • remove all the most obvious bad call to strcat and replace by mr_strcat as appropriate
  • Property svn:keywords set to Id
File size: 29.3 KB
Line 
1/* subroutines for handling mountlist
2 $Id: libmondo-mountlist.c 2211 2009-06-03 17:10:19Z 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 2211 2009-06-03 17:10:19Z 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[MAX_STR_LEN];
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 tmp[0] = '\0';
76 mr_asprintf(&flaws_str, "%s", "");
77
78
79 physical_drive_size = get_phys_size_of_drive(drive);
80
81 if (physical_drive_size < 0) {
82 sprintf(tmp, " %s does not exist.", drive);
83 mr_strcat(flaws_str, "%s", tmp);
84 } else {
85 sprintf(tmp, "%s is %ld MB", drive, physical_drive_size);
86 }
87 log_it(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 sprintf(tmp, " Can only have up to 'h' in disklabel.");
107 log_it(tmp);
108 mr_strcat(flaws_str, tmp);
109 res++;
110 }
111 /* does partition /dev/adXsYZ exist more than once in the mountlist? */
112 for (i = 0, mountpoint_copies = 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 sprintf(tmp, " %s %s's.", number_to_text(device_copies),
120 device);
121 if (!strstr(flaws_str, tmp)) {
122 log_it(tmp);
123 mr_strcat(flaws_str, tmp);
124 res++;
125 }
126 }
127 /* silly partition size? */
128 if (mountlist->el[pos].size < 8192
129 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
130 sprintf(tmp, " %s is tiny!", device);
131 log_it(tmp);
132 mr_strcat(flaws_str, tmp);
133 res++;
134 }
135 /* mountpoint should begin with / unless it is swap, lvm or raid */
136 if (strcmp(mountlist->el[pos].mountpoint, "swap")
137 && strcmp(mountlist->el[pos].mountpoint, "lvm")
138 && strcmp(mountlist->el[pos].mountpoint, "raid")
139 && strcmp(mountlist->el[pos].mountpoint, "image")
140 && strcmp(mountlist->el[pos].mountpoint, "none")
141 && mountlist->el[pos].mountpoint[0] != '/') {
142 sprintf(tmp, " %s has a weird mountpoint.", device);
143 log_it(tmp);
144 mr_strcat(flaws_str, tmp);
145 res++;
146 }
147 /* is format sensible? */
148 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
149 sprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
150 log_it(tmp);
151 mr_strcat(flaws_str, tmp);
152 res++;
153 }
154 amount_allocated += mountlist->el[pos].size / 1024L;
155 prev_sp_no = cur_sp_no;
156 }
157 }
158
159 npos = pos = 0;
160 for (curr_part_no = 1; curr_part_no < 99; curr_part_no++) {
161 build_partition_name(device, drive, curr_part_no);
162 pos = find_device_in_mountlist(mountlist, device);
163 npos = 0;
164 for (cur_sp_no = 'a'; cur_sp_no <= 'h'; cur_sp_no++) {
165 sprintf(device, "%ss%i%c", device, curr_part_no, cur_sp_no);
166 if (find_device_in_mountlist(mountlist, device) >= 0)
167 npos++;
168 }
169 if (((pos >= 0) || npos) && foundsome) {
170 mr_strcat(flaws_str, " %s has both DD and PC-style partitions.", drive);
171 return(flaws_str); // fatal error
172 }
173
174 build_partition_name(device, drive, curr_part_no);
175 strcpy(mountpoint, mountlist->el[pos].mountpoint);
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 sprintf(tmp, " Gap prior to %s.", device);
181 log_it(tmp);
182 mr_strcat(flaws_str, "%s", tmp);
183 res++;
184 } else if (curr_part_no > 5
185 || (curr_part_no <= 4 && prev_part_no > 0)) {
186 sprintf(tmp, " Gap between %ss%d and %d.", drive,
187 prev_part_no, curr_part_no);
188 log_it(tmp);
189 mr_strcat(flaws_str, "%s", tmp);
190 res++;
191 }
192 }
193 /* GPT allows more than 4 primary partitions */
194 part_table_fmt = which_partition_format(drive);
195 /* no spare primary partitions to help accommodate the logical(s)? */
196 if ((curr_part_no >= 5 && prev_part_no == 4)
197 && (strcmp(part_table_fmt, "MBR") == 0)) {
198 sprintf(tmp, " Partition %ss4 is occupied.", drive);
199 log_it(tmp);
200 mr_strcat(flaws_str, "%s", tmp);
201 res++;
202 }
203 /* does partition /dev/adXsY exist more than once in the mountlist? */
204 for (i = 0, mountpoint_copies = 0, device_copies = 0;
205 i < mountlist->entries; i++) {
206 if (!strcmp(device, mountlist->el[i].device)) {
207 device_copies++;
208 }
209 }
210 if (device_copies > 1) {
211 sprintf(tmp, " %s %s's.", number_to_text(device_copies),
212 device);
213 if (!strstr(flaws_str, "%s", tmp)) {
214 log_it(tmp);
215 mr_strcat(flaws_str, "%s", tmp);
216 res++;
217 }
218 }
219 /* silly partition size? */
220 if (mountlist->el[pos].size < 8192
221 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
222 sprintf(tmp, " %s is tiny!", device);
223 log_it(tmp);
224 mr_strcat(flaws_str, "%s", tmp);
225 res++;
226 }
227 /* mountpoint should begin with / unless it is swap, lvm or raid */
228 if (strcmp(mountlist->el[pos].mountpoint, "swap")
229 && strcmp(mountlist->el[pos].mountpoint, "lvm")
230 && strcmp(mountlist->el[pos].mountpoint, "raid")
231 && strcmp(mountlist->el[pos].mountpoint, "image")
232 && strcmp(mountlist->el[pos].mountpoint, "none")
233 && mountlist->el[pos].mountpoint[0] != '/') {
234 sprintf(tmp, " %s has a weird mountpoint.", device);
235 log_it(tmp);
236 mr_strcat(flaws_str, "%s", tmp);
237 res++;
238 }
239 /* is format sensible? */
240 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
241 sprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
242 log_it(tmp);
243 mr_strcat(flaws_str, "%s", tmp);
244 res++;
245 }
246 } else {
247 /* Check subpartitions */
248 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
249 sprintf(device, "%ss%d%c", drive, curr_part_no, cur_sp_no);
250 pos = find_device_in_mountlist(mountlist, device);
251 if (pos < 0) {
252 continue;
253 }
254 strcpy(mountpoint, mountlist->el[pos].mountpoint);
255 /* is it too big? */
256 if (curr_part_no > 'h') {
257 sprintf(tmp, " Can only have up to 'h' in disklabel.");
258 log_it(tmp);
259 mr_strcat(flaws_str, "%s", tmp);
260 res++;
261 }
262 /* does partition /dev/adXsYZ exist more than once in the mountlist? */
263 for (i = 0, mountpoint_copies = 0, device_copies = 0;
264 i < mountlist->entries; i++) {
265 if (!strcmp(device, mountlist->el[i].device)) {
266 device_copies++;
267 }
268 }
269 if (device_copies > 1) {
270 sprintf(tmp, " %s %s's.",
271 number_to_text(device_copies), device);
272 if (!strstr(flaws_str, tmp)) {
273 log_it(tmp);
274 mr_strcat(flaws_str, "%s", tmp);
275 res++;
276 }
277 }
278 /* silly partition size? */
279 if (mountlist->el[pos].size < 8192
280 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
281 sprintf(tmp, " %s is tiny!", device);
282 log_it(tmp);
283 mr_strcat(flaws_str, "%s", tmp);
284 res++;
285 }
286 /* mountpoint should begin with / unless it is swap, lvm or raid */
287 if (strcmp(mountlist->el[pos].mountpoint, "swap")
288 && strcmp(mountlist->el[pos].mountpoint, "lvm")
289 && strcmp(mountlist->el[pos].mountpoint, "raid")
290 && strcmp(mountlist->el[pos].mountpoint, "image")
291 && strcmp(mountlist->el[pos].mountpoint, "none")
292 && mountlist->el[pos].mountpoint[0] != '/') {
293 sprintf(tmp, " %s has a weird mountpoint.", device);
294 log_it(tmp);
295 mr_strcat(flaws_str, "%s", tmp);
296 res++;
297 }
298 /* is format sensible? */
299 if (!is_this_a_valid_disk_format
300 (mountlist->el[pos].format)) {
301 sprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
302 log_it(tmp);
303 mr_strcat(flaws_str, "%s", tmp);
304 res++;
305 }
306 amount_allocated += mountlist->el[pos].size / 1024L;
307 prev_sp_no = cur_sp_no;
308 }
309 }
310
311 /* OK, continue with main loop */
312 amount_allocated += mountlist->el[pos].size / 1024L;
313 prev_part_no = curr_part_no;
314 }
315
316 /* Over-allocated the disk? Unallocated space on disk? */
317 if (amount_allocated > physical_drive_size) // Used to be +1, but what if you're 1 MB too high?
318 {
319 sprintf(tmp, " %ld MB over-allocated on %s.",
320 amount_allocated - physical_drive_size, drive);
321 log_it(tmp);
322 mr_strcat(flaws_str, "%s", tmp);
323 res++;
324 } else if (amount_allocated < physical_drive_size - 1) { /* NOT AN ERROR, JUST A WARNING :-) */
325 sprintf(tmp, " %ld MB unallocated on %s.",
326 physical_drive_size - amount_allocated, drive);
327 log_it(tmp);
328 mr_strcat(flaws_str, "%s", tmp);
329 }
330 if (res) {
331 return (NULL);
332 } else {
333 return (flaws_str);
334 }
335}
336
337#else
338// Linux-specific version of evaluate_drive_within_mountlist()
339{
340
341 /*@ int ************************************************************* */
342 int prev_part_no = 0;
343 int curr_part_no = 0;
344 int pos = 0;
345 int res = 0;
346 int mountpoint_copies = 0;
347 int device_copies = 0;
348 int i = 0;
349
350 /*@ buffers ******************************************************** */
351 char *tmp;
352 char *device;
353 char *flaws_str = NULL;
354
355 /*@ long *********************************************************** */
356 long physical_drive_size = 0L;
357 long amount_allocated = 0L;
358
359 /*@ pointers ******************************************************* */
360 char *part_table_fmt = NULL;
361
362 /*@ initialize ***************************************************** */
363 assert_string_is_neither_NULL_nor_zerolength(drive);
364 assert(mountlist != NULL);
365 mr_asprintf(&flaws_str, "%s", "");
366
367 malloc_string(tmp);
368 malloc_string(device);
369 prev_part_no = 0;
370 tmp[0] = '\0';
371
372
373 physical_drive_size = get_phys_size_of_drive(drive);
374
375 if (physical_drive_size < 0) {
376 sprintf(tmp, " %s does not exist.", drive);
377 mr_strcat(flaws_str, "%s", tmp);
378 res++;
379 log_msg(1, tmp);
380 goto endoffunc;
381 } else {
382 sprintf(tmp, "%s is %ld MB", drive, physical_drive_size);
383 log_it(tmp);
384 }
385
386 for (curr_part_no = 1; curr_part_no < 99; curr_part_no++) {
387 build_partition_name(device, drive, curr_part_no);
388 pos = find_device_in_mountlist(mountlist, device);
389 if (pos < 0) {
390 continue;
391 }
392 /* gap in the partition list? */
393 if (curr_part_no - prev_part_no > 1) {
394 if (prev_part_no == 0) {
395 sprintf(tmp, " Gap prior to %s.", device);
396 log_it(tmp);
397 mr_strcat(flaws_str, "%s", tmp);
398 res++;
399 } else if (curr_part_no > 5
400 || (curr_part_no <= 4 && prev_part_no > 0)) {
401 sprintf(tmp, " Gap on %s between %d and %d.", drive,
402 prev_part_no, curr_part_no);
403 log_it(tmp);
404 mr_strcat(flaws_str, "%s", tmp);
405 res++;
406 }
407 }
408 /* GPT allows more than 4 primary partitions */
409 part_table_fmt = which_partition_format(drive);
410 /* no spare primary partitions to help accommodate the logical(s)? */
411 if ((curr_part_no >= 5 && prev_part_no == 4)
412 && (strcmp(part_table_fmt, "MBR") == 0)) {
413 sprintf(tmp, " Partition 4 of %s is occupied.", drive);
414 log_it(tmp);
415 mr_strcat(flaws_str, "%s", tmp);
416 res++;
417 }
418 /* does partition /dev/hdNX exist more than once in the mountlist? */
419 for (i = 0, mountpoint_copies = 0, device_copies = 0;
420 i < mountlist->entries; i++) {
421 if (!strcmp(device, mountlist->el[i].device)) {
422 device_copies++;
423 }
424 }
425 if (device_copies > 1) {
426 sprintf(tmp, " %s %s's.", number_to_text(device_copies),
427 device);
428 if (!strstr(flaws_str, tmp)) {
429 log_it(tmp);
430 mr_strcat(flaws_str, "%s", tmp);
431 res++;
432 }
433 }
434 /* silly partition size? */
435 if (mountlist->el[pos].size < 8192
436 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
437 sprintf(tmp, " %s is tiny!", device);
438 log_it(tmp);
439 mr_strcat(flaws_str, "%s", tmp);
440 res++;
441 }
442 /* mountpoint should begin with / unless it is swap, lvm or raid */
443 if (strcmp(mountlist->el[pos].mountpoint, "swap")
444 && strcmp(mountlist->el[pos].mountpoint, "lvm")
445 && strcmp(mountlist->el[pos].mountpoint, "raid")
446 && strcmp(mountlist->el[pos].mountpoint, "image")
447 && mountlist->el[pos].mountpoint[0] != '/') {
448 sprintf(tmp, " %s has a weird mountpoint.", device);
449 log_it(tmp);
450 mr_strcat(flaws_str, "%s", tmp);
451 res++;
452 }
453 /* is format sensible? */
454 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
455 sprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
456 log_it(tmp);
457 mr_strcat(flaws_str, "%s", tmp);
458 res++;
459 }
460 /* OK, continue with main loop */
461 amount_allocated += mountlist->el[pos].size / 1024L;
462 prev_part_no = curr_part_no;
463 }
464
465 /* Over-allocated the disk? Unallocated space on disk? */
466 if (amount_allocated > physical_drive_size + 1) {
467 sprintf(tmp, " %ld MB over-allocated on %s.",
468 amount_allocated - physical_drive_size, drive);
469 log_it(tmp);
470 mr_strcat(flaws_str, "%s", tmp);
471 res++;
472 } else if (amount_allocated < physical_drive_size - 1) { /* NOT AN ERROR, JUST A WARNING :-) */
473 sprintf(tmp, " %ld MB unallocated on %s.",
474 physical_drive_size - amount_allocated, drive);
475 log_it(tmp);
476 mr_strcat(flaws_str, "%s", tmp);
477 }
478
479 endoffunc:
480 paranoid_free(tmp);
481 paranoid_free(device);
482
483 if (res) {
484 return (NULL);
485 } else {
486 return (flaws_str);
487 }
488}
489#endif
490
491
492/**
493 * Evaluate a whole mountlist for flaws. Calls evaluate_drive_within_mountlist()
494 * for each drive, and then spreads the flaws across three lines.
495 * @param mountlist The mountlist to evaluate.
496 * @param flaws_str_A Where to put the first line listing errors found.
497 * @param flaws_str_B Where to put the second line listing errors found.
498 * @param flaws_str_C Where to put the third line listing errors found.
499 * @return The number of flaws found (0 for success).
500 * @see evaluate_drive_within_mountlist
501 */
502int
503evaluate_mountlist(struct mountlist_itself *mountlist, char *flaws_str_A,
504 char *flaws_str_B, char *flaws_str_C)
505{
506
507 /*@ buffer *********************************************************** */
508 struct list_of_disks *drivelist;
509 char *tmp = NULL;
510 char *flaws_str = NULL;
511
512 /*@ int ************************************************************** */
513 int i = 0;
514 int res = 0;
515
516 /*@ initialize ******************************************************* */
517
518 drivelist = malloc(sizeof(struct list_of_disks));
519 assert(mountlist != NULL);
520 assert(flaws_str_A != NULL);
521 assert(flaws_str_B != NULL);
522 assert(flaws_str_C != NULL);
523
524 mr_asprintf(&flaws_str, "%s", "");
525
526 make_list_of_drives_in_mountlist(mountlist, drivelist);
527
528 log_it("Evaluating mountlist...");
529
530 for (i = 0; i < drivelist->entries; i++) {
531 if (strstr
532 (drivelist->el[i].device,
533 DONT_KNOW_HOW_TO_EVALUATE_THIS_DEVICE_TYPE)) {
534 mr_asprintf(&tmp, " Not evaluating %s (I don't know how yet)",
535 drivelist->el[i].device);
536 log_it(tmp);
537 paranoid_free(tmp);
538 } else {
539 if ((tmp = evaluate_drive_within_mountlist(mountlist, drivelist->el[i].device)) == NULL) {
540 res++;
541 }
542 }
543 log_msg(8,"Entry: %d (%s)", i, drivelist->el[i].device);
544 log_msg(8,"Adding: %s to %s", tmp, flaws_str);
545 mr_strcat(flaws_str, "%s", tmp);
546 paranoid_free(tmp);
547 }
548 res += look_for_duplicate_mountpoints(mountlist, flaws_str);
549 res = spread_flaws_across_three_lines(flaws_str, flaws_str_A, flaws_str_B, flaws_str_C,res);
550 paranoid_free(flaws_str);
551 return(res);
552}
553
554
555/**
556 * Find the index number of @p device in the mountlist.
557 * The device given must match @p mountlist->el[N].device exactly, case-sensitive.
558 * @param mountlist The mountlist to search in.
559 * @param device The device to search for.
560 * @return The zero-based index of the device, or -1 if it could not be found.
561 */
562int
563find_device_in_mountlist(struct mountlist_itself *mountlist, char *device)
564{
565
566 /*@ int ************************************************************** */
567 int i = 0;
568
569 assert(mountlist != NULL);
570 assert_string_is_neither_NULL_nor_zerolength(device);
571 for (i = 0;
572 i < mountlist->entries
573 && strcmp(mountlist->el[i].device, device) != 0; i++);
574
575 if (i == mountlist->entries) {
576 return (-1);
577 } else {
578 return (i);
579 }
580}
581
582
583/**
584 * Look for duplicate mountpoints in @p mountlist.
585 * @param mountlist The mountlist to check.
586 * @param flaws_str The flaws string to append the results to.
587 * @return The number of mountpoints that have duplicates, or 0 for success.
588 */
589int
590look_for_duplicate_mountpoints(struct mountlist_itself *mountlist, char *flaws_str)
591{
592
593 /*@ int ************************************************************* */
594 int res = 0;
595 int currline = 0;
596 int i = 0;
597 int copies = 0;
598 int last_copy = 0;
599
600 /*@ buffetr ********************************************************* */
601 char *curr_mountpoint = NULL;
602 char *tmp = NULL;
603
604 assert(mountlist != NULL);
605 assert(flaws_str != NULL);
606
607 for (currline = 0; currline < mountlist->entries; currline++) {
608 mr_asprintf(&curr_mountpoint, "%s", mountlist->el[currline].mountpoint);
609 for (i = 0, copies = 0, last_copy = -1; i < mountlist->entries;
610 i++) {
611 if (!strcmp(mountlist->el[i].mountpoint, curr_mountpoint)
612 && strcmp(mountlist->el[i].mountpoint, "lvm")
613 && strcmp(mountlist->el[i].mountpoint, "swap")) {
614 last_copy = i;
615 copies++;
616 }
617 }
618 if (copies > 1 && last_copy == currline
619 && strcmp(curr_mountpoint, "raid")) {
620 mr_asprintf(&tmp, " %s %s's.", number_to_text(copies),
621 curr_mountpoint);
622 mr_strcat(flaws_str, "%s", tmp);
623 log_it(tmp);
624 paranoid_free(tmp);
625 res++;
626 }
627 paranoid_free(curr_mountpoint);
628 }
629 return (res);
630}
631
632
633/**
634 * Make a list of the drives mentioned in the mountlist.
635 * @param mountlist The mountlist to examine.
636 * @param drivelist Where to put the list of drives found.
637 * @return The number of physical (non-RAID non-LVM) drives found, or \<= 0 for error.
638 */
639int
640make_list_of_drives_in_mountlist(struct mountlist_itself *mountlist,
641 struct list_of_disks *drivelist)
642{
643
644 /*@ int ************************************************************* */
645 int lino;
646 int noof_drives;
647 int j;
648
649 /*@ buffers ********************************************************* */
650 char *drive = NULL;
651
652 long long size;
653
654 assert(mountlist != NULL);
655 assert(drivelist != NULL);
656 log_it("Making list of drives");
657 for (lino = 0, noof_drives = 0; lino < mountlist->entries; lino++) {
658
659 mr_asprintf(&drive, "%s", mountlist->el[lino].device);
660 if (!strncmp(drive, RAID_DEVICE_STUB, strlen(RAID_DEVICE_STUB))) {
661 log_msg(8, "Not putting %s in list of drives: it's a virtual drive", drive);
662 paranoid_free(drive);
663 continue;
664 }
665
666 size = mountlist->el[lino].size;
667 if (size == 0) {
668 log_msg(8, "Not putting %s in list of drives: it has zero size (maybe an LVM volume)", drive);
669 paranoid_free(drive);
670 continue;
671 }
672
673 log_msg(8, "Putting %s with size %lli in list of drives", drive, size);
674
675 (void) truncate_to_drive_name(drive);
676 log_msg(8, "drive truncated to %s", drive);
677
678 for (j = 0;
679 j < noof_drives
680 && strcmp(drivelist->el[j].device, drive) != 0; j++) {
681 continue;
682 }
683 if (j == noof_drives) {
684 strncpy(drivelist->el[noof_drives++].device, drive, 63);
685 }
686 paranoid_free(drive);
687 }
688 drivelist->entries = noof_drives;
689 log_msg(8, "Made list of drives");
690
691 return (noof_drives);
692}
693
694
695/**
696 * Make a list of RAID partitions not currently associated with any RAID device.
697 * The user may add any of these partitions to the RAID device.
698 * @param output_list Where to put the list of unallocated RAID partitions.
699 * @param mountlist The mountlist to examine.
700 * @param raidlist The raidlist to examine.
701 */
702void make_list_of_unallocated_raid_partitions(struct mountlist_itself
703 *output_list,
704 struct mountlist_itself
705 *mountlist,
706 struct raidlist_itself
707 *raidlist)
708{
709
710 /*@ int ************************************************************* */
711 int items = 0;
712 int i = 0;
713 int used_by = 0;
714
715 /*@ buffers ********************************************************* */
716 char *tmp = NULL;
717
718 assert(output_list != NULL);
719 assert(mountlist != NULL);
720 assert(raidlist != NULL);
721 log_it("MLOURP -- starting");
722 items = 0;
723
724
725 for (i = 0; i < mountlist->entries; i++) {
726 if (strstr(mountlist->el[i].mountpoint, "raid")) {
727 used_by =
728 which_raid_device_is_using_this_partition(raidlist,
729 mountlist->el[i].
730 device);
731 if (used_by < 0) {
732 memcpy((void *) &output_list->el[items++],
733 (void *) &mountlist->el[i],
734 sizeof(struct mountlist_line));
735 mr_asprintf(&tmp,
736 "%s is available; user may choose to add it to raid device",
737 output_list->el[items - 1].device);
738 log_it(tmp);
739 paranoid_free(tmp);
740 }
741 }
742 }
743 output_list->entries = items;
744 log_it("MLUORP -- ending");
745}
746
747
748/**
749 * Get the size of a mountlist entry by the @c device field.
750 * @param mountlist The mountlist to search in.
751 * @param device The device to search for
752 * @return The size of the device (in KB), or -1 if it could not be found.
753 */
754long long
755size_of_specific_device_in_mountlist(struct mountlist_itself *mountlist,
756 char *device)
757{
758 /*@ int ************************************************************** */
759 int i = 0;
760
761
762 assert(mountlist != NULL);
763 assert_string_is_neither_NULL_nor_zerolength(device);
764
765 for (i = 0;
766 i < mountlist->entries && strcmp(mountlist->el[i].device, device);
767 i++);
768 if (i == mountlist->entries) {
769 return (-1);
770 } else {
771 return (mountlist->el[i].size);
772 }
773}
774
775
776/**
777 * Load a file on disk into @p mountlist.
778 * The file on disk should consist of multiple lines, each containing 4 or 5
779 * columns: the device, the mountpoint, the filesystem type, the size in kilobytes, and optionally the filesystem label.
780 * Comments begin with a '#' without any leading whitespace. Any duplicate
781 * entries are renamed.
782 * @param mountlist The mountlist to load into.
783 * @param fname The name of the file to load the mountlist from.
784 * @return 0 for success, 1 for failure.
785 */
786int load_mountlist(struct mountlist_itself *mountlist, char *fname)
787{
788 FILE *fin = NULL;
789 /* malloc ** */
790 char *incoming = NULL;
791 char *siz = NULL;
792 char *tmp = NULL;
793 char *p = NULL;
794
795 int items = 0;
796 int j = 0;
797 int res = 0;
798
799 assert(mountlist != NULL);
800 assert_string_is_neither_NULL_nor_zerolength(fname);
801
802 if (!(fin = fopen(fname, "r"))) {
803 log_it("Unable to open mountlist - '%s'", fname);
804 log_to_screen("Cannot open mountlist");
805 return (1);
806 }
807 malloc_string(incoming);
808 malloc_string(siz);
809 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
810 log_it("Loading mountlist...");
811 while (!feof(fin)) {
812#if linux
813 res = sscanf(incoming,
814 "%s %s %s %s %s",
815 mountlist->el[items].device,
816 mountlist->el[items].mountpoint,
817 mountlist->el[items].format,
818 siz, mountlist->el[items].label);
819 if (res < 5) {
820 /* no label found */
821 log_msg(4, "no label found for %s",mountlist->el[items].device);
822 strcpy(mountlist->el[items].label,"");
823 }
824#elif __FreeBSD__
825 res = sscanf(incoming,
826 "%s %s %s %s",
827 mountlist->el[items].device,
828 mountlist->el[items].mountpoint,
829 mountlist->el[items].format, siz);
830 strcpy(mountlist->el[items].label,"");
831#endif
832
833 if (!strcmp(mountlist->el[items].device, "/proc") ||
834 !strcmp(mountlist->el[items].device, "proc") ||
835 !strcmp(mountlist->el[items].device, "/sys") ||
836 !strcmp(mountlist->el[items].device, "sys") ||
837 !strcmp(mountlist->el[items].device, "/devpts") ||
838 !strcmp(mountlist->el[items].device, "devpts")
839 ) {
840 log_msg(1,
841 "Ignoring %s in mountlist - not loading that line :) ",
842 mountlist->el[items].device);
843 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
844 continue;
845 }
846 mountlist->el[items].size = atoll(siz);
847 if (mountlist->el[items].device[0] != '\0'
848 && mountlist->el[items].device[0] != '#') {
849 for (j = 0;
850 j < items
851 && strcmp(mountlist->el[j].device,
852 mountlist->el[items].device); j++);
853 if (j < items) {
854 strcat(mountlist->el[items].device, "_dup");
855 mr_asprintf(&tmp,
856 "Duplicate entry in mountlist - renaming to %s",
857 mountlist->el[items].device);
858 log_it(tmp);
859 paranoid_free(tmp);
860 }
861 mr_asprintf(&tmp, "%s", mountlist->el[items].device);
862 if (strstr(tmp, "/dev/md/")) {
863 log_it("format_device() --- Contracting %s", tmp);
864 p = strrchr(tmp, '/');
865 if (p) {
866 *p = *(p + 1);
867 *(p + 1) = *(p + 2);
868 *(p + 2) = *(p + 3);
869 }
870 log_it("It was %s; it is now %s",
871 mountlist->el[items].device, tmp);
872 strcpy(mountlist->el[items].device, tmp);
873 }
874 paranoid_free(tmp);
875
876 log_it("%s %s %s %lld %s",
877 mountlist->el[items].device,
878 mountlist->el[items].mountpoint,
879 mountlist->el[items].format,
880 mountlist->el[items].size,
881 mountlist->el[items].label);
882 items++;
883 if (items >= MAX_MOUNTLIST_ENTRIES) {
884 log_to_screen("Too many lines in mountlist.. ABORTING");
885 finish(1);
886 }
887 }
888 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
889 }
890 paranoid_fclose(fin);
891 mountlist->entries = items;
892
893 log_it("Mountlist loaded successfully.");
894 log_it("%d entries in mountlist", items);
895
896 paranoid_free(incoming);
897 paranoid_free(siz);
898 return (0);
899}
900
901
902
903/**
904 * Save @p mountlist to a file on disk.
905 * @param mountlist The mountlist to save.
906 * @param fname The file to save it to.
907 * @return 0 for success, 1 for failure.
908 * @see load_mountlist
909 */
910int save_mountlist_to_disk(struct mountlist_itself *mountlist, char *fname)
911{
912 FILE *fout;
913 int i;
914
915 assert(mountlist != NULL);
916 assert_string_is_neither_NULL_nor_zerolength(fname);
917
918 log_it("save_mountlist_to_disk() --- saving to %s", fname);
919 if (!(fout = fopen(fname, "w"))) {
920 log_OS_error("WMTD - Cannot openout mountlist");
921 return (1);
922 }
923 for (i = 0; i < mountlist->entries; i++) {
924 fprintf(fout,
925 "%-15s %-15s %-15s %-15lld %-15s\n",
926 mountlist->el[i].device, mountlist->el[i].mountpoint,
927 mountlist->el[i].format, mountlist->el[i].size,
928 mountlist->el[i].label);
929 }
930 paranoid_fclose(fout);
931 return (0);
932}
933
934
935/**
936 * Sort the mountlist alphabetically by device.
937 * The sorting is done in-place.
938 * @param mountlist The mountlist to sort.
939 */
940void sort_mountlist_by_device(struct mountlist_itself *mountlist)
941{
942 int diff;
943 int lino = -999;
944
945 assert(mountlist != NULL);
946
947 while (lino < mountlist->entries) {
948 for (lino = 1; lino < mountlist->entries; lino++) {
949 diff =
950 strcmp_inc_numbers(mountlist->el[lino - 1].device,
951 mountlist->el[lino].device);
952 if (diff > 0) {
953 swap_mountlist_entries(mountlist, lino - 1, lino);
954 break;
955 }
956 }
957 }
958}
959
960
961/**
962 * Sort the mountlist alphabetically by mountpoint.
963 * The sorting is done in-place.
964 * @param mountlist The mountlist to sort.
965 * @param reverse If TRUE, then do a reverse sort.
966 */
967void
968sort_mountlist_by_mountpoint(struct mountlist_itself *mountlist,
969 bool reverse)
970{
971 int diff;
972 int lino = -999;
973
974 assert(mountlist != NULL);
975
976 while (lino < mountlist->entries) {
977 for (lino = 1; lino < mountlist->entries; lino++) {
978 diff =
979 strcmp(mountlist->el[lino - 1].mountpoint,
980 mountlist->el[lino].mountpoint);
981 if ((diff > 0 && !reverse) || ((diff < 0 && reverse))) {
982 swap_mountlist_entries(mountlist, lino - 1, lino);
983 break;
984 }
985 }
986 }
987}
988
989
990/**
991 * Swap two entries in the mountlist in-place.
992 * @param mountlist The mountlist to swap the entries in.
993 * @param a The index number of the first entry.
994 * @param b The index number of the second entry.
995 */
996void
997swap_mountlist_entries(struct mountlist_itself *mountlist, int a, int b)
998{
999 /*@ mallocs *** */
1000 char *device = NULL;
1001 char *mountpoint = NULL;
1002 char *format = NULL;
1003
1004 long long size;
1005
1006 assert(mountlist != NULL);
1007 assert(a >= 0);
1008 assert(b >= 0);
1009
1010 mr_asprintf(&device, "%s", mountlist->el[a].device);
1011 mr_asprintf(&mountpoint, "%s", mountlist->el[a].mountpoint);
1012 mr_asprintf(&format, "%s", mountlist->el[a].format);
1013
1014 size = mountlist->el[a].size;
1015
1016 strcpy(mountlist->el[a].device, mountlist->el[b].device);
1017 strcpy(mountlist->el[a].mountpoint, mountlist->el[b].mountpoint);
1018 strcpy(mountlist->el[a].format, mountlist->el[b].format);
1019
1020 mountlist->el[a].size = mountlist->el[b].size;
1021
1022 strcpy(mountlist->el[b].device, device);
1023 strcpy(mountlist->el[b].mountpoint, mountpoint);
1024 strcpy(mountlist->el[b].format, format);
1025
1026 mountlist->el[b].size = size;
1027 paranoid_free(device);
1028 paranoid_free(mountpoint);
1029 paranoid_free(format);
1030}
1031
1032/* @} - end of mountlistGroup */
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