source: MondoRescue/branches/2.2.9/mondo/src/common/libmondo-mountlist.c@ 2290

Last change on this file since 2290 was 2290, checked in by Bruno Cornec, 15 years ago
  • Fix a printing error in mindi for the tar command
  • Fix all mr_asprintf which had no second param as a string
  • Property svn:keywords set to Id
File size: 29.9 KB
Line 
1/* subroutines for handling mountlist
2 $Id: libmondo-mountlist.c 2290 2009-07-22 12:03:44Z 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 2290 2009-07-22 12:03:44Z 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)", drivelist->el[i].device);
535 log_it(tmp);
536 paranoid_free(tmp);
537 } else {
538 log_msg(8, "Evaluating drive #%d (%s) within mountlist", i, drivelist->el[i].device);
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 /* BCO: tmp can be NULL as well as flaws_str */
545 if (tmp != NULL) {
546 log_msg(8,"Adding: %s to %s", tmp, flaws_str);
547 mr_strcat(flaws_str, "%s", tmp);
548 paranoid_free(tmp);
549 }
550 }
551 res += look_for_duplicate_mountpoints(mountlist, flaws_str);
552 res = spread_flaws_across_three_lines(flaws_str, flaws_str_A, flaws_str_B, flaws_str_C,res);
553 paranoid_free(flaws_str);
554 return(res);
555}
556
557
558/**
559 * Find the index number of @p device in the mountlist.
560 * The device given must match @p mountlist->el[N].device exactly, case-sensitive.
561 * @param mountlist The mountlist to search in.
562 * @param device The device to search for.
563 * @return The zero-based index of the device, or -1 if it could not be found.
564 */
565int
566find_device_in_mountlist(struct mountlist_itself *mountlist, char *device)
567{
568
569 /*@ int ************************************************************** */
570 int i = 0;
571
572 assert(mountlist != NULL);
573 assert_string_is_neither_NULL_nor_zerolength(device);
574 for (i = 0;
575 i < mountlist->entries
576 && strcmp(mountlist->el[i].device, device) != 0; i++);
577
578 if (i == mountlist->entries) {
579 return (-1);
580 } else {
581 return (i);
582 }
583}
584
585
586/**
587 * Look for duplicate mountpoints in @p mountlist.
588 * @param mountlist The mountlist to check.
589 * @param flaws_str The flaws string to append the results to.
590 * @return The number of mountpoints that have duplicates, or 0 for success.
591 */
592int
593look_for_duplicate_mountpoints(struct mountlist_itself *mountlist, char *flaws_str)
594{
595
596 /*@ int ************************************************************* */
597 int res = 0;
598 int currline = 0;
599 int i = 0;
600 int copies = 0;
601 int last_copy = 0;
602
603 /*@ buffetr ********************************************************* */
604 char *curr_mountpoint = NULL;
605 char *tmp = NULL;
606
607 assert(mountlist != NULL);
608 assert(flaws_str != NULL);
609
610 for (currline = 0; currline < mountlist->entries; currline++) {
611 mr_asprintf(&curr_mountpoint, "%s", mountlist->el[currline].mountpoint);
612 for (i = 0, copies = 0, last_copy = -1; i < mountlist->entries;
613 i++) {
614 if (!strcmp(mountlist->el[i].mountpoint, curr_mountpoint)
615 && strcmp(mountlist->el[i].mountpoint, "lvm")
616 && strcmp(mountlist->el[i].mountpoint, "swap")) {
617 last_copy = i;
618 copies++;
619 }
620 }
621 if (copies > 1 && last_copy == currline
622 && strcmp(curr_mountpoint, "raid")) {
623 mr_asprintf(&tmp, " %s %s's.", number_to_text(copies), curr_mountpoint);
624 mr_strcat(flaws_str, "%s", tmp);
625 log_it(tmp);
626 paranoid_free(tmp);
627 res++;
628 }
629 paranoid_free(curr_mountpoint);
630 }
631 return (res);
632}
633
634
635/**
636 * Make a list of the drives mentioned in the mountlist.
637 * @param mountlist The mountlist to examine.
638 * @param drivelist Where to put the list of drives found.
639 * @return The number of physical (non-RAID non-LVM) drives found, or \<= 0 for error.
640 */
641int
642make_list_of_drives_in_mountlist(struct mountlist_itself *mountlist,
643 struct list_of_disks *drivelist)
644{
645
646 /*@ int ************************************************************* */
647 int lino;
648 int noof_drives;
649 int j;
650
651 /*@ buffers ********************************************************* */
652 char *drive = NULL;
653 char *truncdrive = NULL;
654
655 long long size;
656
657 assert(mountlist != NULL);
658 assert(drivelist != NULL);
659 log_it("Making list of drives");
660 for (lino = 0, noof_drives = 0; lino < mountlist->entries; lino++) {
661
662 mr_asprintf(&drive, "%s", mountlist->el[lino].device);
663 if (!strncmp(drive, RAID_DEVICE_STUB, strlen(RAID_DEVICE_STUB))) {
664 log_msg(8, "Not putting %s in list of drives: it's a virtual drive", drive);
665 paranoid_free(drive);
666 continue;
667 }
668
669 size = mountlist->el[lino].size;
670 if (size == 0) {
671 log_msg(8, "Not putting %s in list of drives: it has zero size (maybe an LVM volume)", drive);
672 paranoid_free(drive);
673 continue;
674 }
675
676 log_msg(8, "Putting %s with size %lli in list of drives", drive, size);
677
678 /* memory allocation */
679 truncdrive = truncate_to_drive_name(drive);
680 paranoid_free(drive);
681
682 log_msg(8, "drive truncated to %s", truncdrive);
683
684 for (j = 0;
685 j < noof_drives
686 && strcmp(drivelist->el[j].device, truncdrive) != 0; j++) {
687 continue;
688 }
689 if (j == noof_drives) {
690 strncpy(drivelist->el[noof_drives].device, truncdrive, 63);
691 drivelist->el[noof_drives].device[63] = '\0';
692 log_msg(8,"Adding drive %s to list", drivelist->el[noof_drives].device);
693 noof_drives++;
694 }
695 paranoid_free(truncdrive);
696 if (noof_drives >= MAXIMUM_DISKS_PER_RAID_DEV) {
697 log_msg(0, "Unable to handle mountlist with more than %d lines", MAXIMUM_DISKS_PER_RAID_DEV);
698 log_to_screen("Unable to handle a so big mountlist");
699 finish(1);
700 }
701 }
702 drivelist->entries = noof_drives;
703 log_msg(8, "Made list of %d drives",noof_drives);
704
705 return (noof_drives);
706}
707
708
709/**
710 * Make a list of RAID partitions not currently associated with any RAID device.
711 * The user may add any of these partitions to the RAID device.
712 * @param output_list Where to put the list of unallocated RAID partitions.
713 * @param mountlist The mountlist to examine.
714 * @param raidlist The raidlist to examine.
715 */
716void make_list_of_unallocated_raid_partitions(struct mountlist_itself
717 *output_list,
718 struct mountlist_itself
719 *mountlist,
720 struct raidlist_itself
721 *raidlist)
722{
723
724 /*@ int ************************************************************* */
725 int items = 0;
726 int i = 0;
727 int used_by = 0;
728
729 /*@ buffers ********************************************************* */
730 char *tmp = NULL;
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 =
742 which_raid_device_is_using_this_partition(raidlist,
743 mountlist->el[i].
744 device);
745 if (used_by < 0) {
746 memcpy((void *) &output_list->el[items++],
747 (void *) &mountlist->el[i],
748 sizeof(struct mountlist_line));
749 mr_asprintf(&tmp, "%s is available; user may choose to add it to raid device", output_list->el[items - 1].device);
750 log_it(tmp);
751 paranoid_free(tmp);
752 }
753 }
754 }
755 output_list->entries = items;
756 log_it("MLUORP -- ending");
757}
758
759
760/**
761 * Get the size of a mountlist entry by the @c device field.
762 * @param mountlist The mountlist to search in.
763 * @param device The device to search for
764 * @return The size of the device (in KB), or -1 if it could not be found.
765 */
766long long
767size_of_specific_device_in_mountlist(struct mountlist_itself *mountlist,
768 char *device)
769{
770 /*@ int ************************************************************** */
771 int i = 0;
772
773
774 assert(mountlist != NULL);
775 assert_string_is_neither_NULL_nor_zerolength(device);
776
777 for (i = 0;
778 i < mountlist->entries && strcmp(mountlist->el[i].device, device);
779 i++);
780 if (i == mountlist->entries) {
781 return (-1);
782 } else {
783 return (mountlist->el[i].size);
784 }
785}
786
787
788/**
789 * Load a file on disk into @p mountlist.
790 * The file on disk should consist of multiple lines, each containing 4 or 5
791 * columns: the device, the mountpoint, the filesystem type, the size in kilobytes, and optionally the filesystem label.
792 * Comments begin with a '#' without any leading whitespace. Any duplicate
793 * entries are renamed.
794 * @param mountlist The mountlist to load into.
795 * @param fname The name of the file to load the mountlist from.
796 * @return 0 for success, 1 for failure.
797 */
798int load_mountlist(struct mountlist_itself *mountlist, char *fname)
799{
800 FILE *fin = NULL;
801 /* malloc ** */
802 char *incoming = NULL;
803 char *siz = NULL;
804 char *tmp = NULL;
805 char *p = NULL;
806
807 int items = 0;
808 int j = 0;
809 int res = 0;
810
811 assert(mountlist != NULL);
812 assert_string_is_neither_NULL_nor_zerolength(fname);
813
814 if (!(fin = fopen(fname, "r"))) {
815 log_it("Unable to open mountlist - '%s'", fname);
816 log_to_screen("Cannot open mountlist");
817 return (1);
818 }
819 malloc_string(incoming);
820 malloc_string(siz);
821 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
822 log_it("Loading mountlist...");
823 while (!feof(fin)) {
824#if linux
825 res = sscanf(incoming,
826 "%s %s %s %s %s",
827 mountlist->el[items].device,
828 mountlist->el[items].mountpoint,
829 mountlist->el[items].format,
830 siz, mountlist->el[items].label);
831 if (res < 5) {
832 /* no label found */
833 log_msg(4, "no label found for %s",mountlist->el[items].device);
834 strcpy(mountlist->el[items].label,"");
835 }
836#elif __FreeBSD__
837 res = sscanf(incoming,
838 "%s %s %s %s",
839 mountlist->el[items].device,
840 mountlist->el[items].mountpoint,
841 mountlist->el[items].format, siz);
842 strcpy(mountlist->el[items].label,"");
843#endif
844
845 if (!strcmp(mountlist->el[items].device, "/proc") ||
846 !strcmp(mountlist->el[items].device, "proc") ||
847 !strcmp(mountlist->el[items].device, "/sys") ||
848 !strcmp(mountlist->el[items].device, "sys") ||
849 !strcmp(mountlist->el[items].device, "/devpts") ||
850 !strcmp(mountlist->el[items].device, "devpts")
851 ) {
852 log_msg(1,
853 "Ignoring %s in mountlist - not loading that line :) ",
854 mountlist->el[items].device);
855 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
856 continue;
857 }
858 mountlist->el[items].size = atoll(siz);
859 if (mountlist->el[items].device[0] != '\0'
860 && mountlist->el[items].device[0] != '#') {
861 for (j = 0;
862 j < items
863 && strcmp(mountlist->el[j].device,
864 mountlist->el[items].device); j++);
865 if (j < items) {
866 strcat(mountlist->el[items].device, "_dup");
867 mr_asprintf(&tmp, "Duplicate entry in mountlist - renaming to %s", mountlist->el[items].device);
868 log_it(tmp);
869 paranoid_free(tmp);
870 }
871 mr_asprintf(&tmp, "%s", mountlist->el[items].device);
872 if (strstr(tmp, "/dev/md/")) {
873 log_it("format_device() --- Contracting %s", tmp);
874 p = strrchr(tmp, '/');
875 if (p) {
876 *p = *(p + 1);
877 *(p + 1) = *(p + 2);
878 *(p + 2) = *(p + 3);
879 }
880 log_it("It was %s; it is now %s",
881 mountlist->el[items].device, tmp);
882 strcpy(mountlist->el[items].device, tmp);
883 }
884 paranoid_free(tmp);
885
886 log_it("%s %s %s %lld %s",
887 mountlist->el[items].device,
888 mountlist->el[items].mountpoint,
889 mountlist->el[items].format,
890 mountlist->el[items].size,
891 mountlist->el[items].label);
892 items++;
893 if (items >= MAX_MOUNTLIST_ENTRIES) {
894 log_to_screen("Too many lines in mountlist.. ABORTING");
895 finish(1);
896 }
897 }
898 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
899 }
900 paranoid_fclose(fin);
901 mountlist->entries = items;
902
903 log_it("Mountlist loaded successfully.");
904 log_it("%d entries in mountlist", items);
905
906 paranoid_free(incoming);
907 paranoid_free(siz);
908 return (0);
909}
910
911
912
913/**
914 * Save @p mountlist to a file on disk.
915 * @param mountlist The mountlist to save.
916 * @param fname The file to save it to.
917 * @return 0 for success, 1 for failure.
918 * @see load_mountlist
919 */
920int save_mountlist_to_disk(struct mountlist_itself *mountlist, char *fname)
921{
922 FILE *fout;
923 int i;
924
925 assert(mountlist != NULL);
926 assert_string_is_neither_NULL_nor_zerolength(fname);
927
928 log_it("save_mountlist_to_disk() --- saving to %s", fname);
929 if (!(fout = fopen(fname, "w"))) {
930 log_OS_error("WMTD - Cannot openout mountlist");
931 return (1);
932 }
933 for (i = 0; i < mountlist->entries; i++) {
934 fprintf(fout,
935 "%-15s %-15s %-15s %-15lld %-15s\n",
936 mountlist->el[i].device, mountlist->el[i].mountpoint,
937 mountlist->el[i].format, mountlist->el[i].size,
938 mountlist->el[i].label);
939 }
940 paranoid_fclose(fout);
941 return (0);
942}
943
944
945/**
946 * Sort the mountlist alphabetically by device.
947 * The sorting is done in-place.
948 * @param mountlist The mountlist to sort.
949 */
950void sort_mountlist_by_device(struct mountlist_itself *mountlist)
951{
952 int diff;
953 int lino = -999;
954
955 assert(mountlist != NULL);
956
957 while (lino < mountlist->entries) {
958 for (lino = 1; lino < mountlist->entries; lino++) {
959 diff =
960 strcmp_inc_numbers(mountlist->el[lino - 1].device,
961 mountlist->el[lino].device);
962 if (diff > 0) {
963 swap_mountlist_entries(mountlist, lino - 1, lino);
964 break;
965 }
966 }
967 }
968}
969
970
971/**
972 * Sort the mountlist alphabetically by mountpoint.
973 * The sorting is done in-place.
974 * @param mountlist The mountlist to sort.
975 * @param reverse If TRUE, then do a reverse sort.
976 */
977void
978sort_mountlist_by_mountpoint(struct mountlist_itself *mountlist,
979 bool reverse)
980{
981 int diff;
982 int lino = -999;
983
984 assert(mountlist != NULL);
985
986 while (lino < mountlist->entries) {
987 for (lino = 1; lino < mountlist->entries; lino++) {
988 diff =
989 strcmp(mountlist->el[lino - 1].mountpoint,
990 mountlist->el[lino].mountpoint);
991 if ((diff > 0 && !reverse) || ((diff < 0 && reverse))) {
992 swap_mountlist_entries(mountlist, lino - 1, lino);
993 break;
994 }
995 }
996 }
997}
998
999
1000/**
1001 * Swap two entries in the mountlist in-place.
1002 * @param mountlist The mountlist to swap the entries in.
1003 * @param a The index number of the first entry.
1004 * @param b The index number of the second entry.
1005 */
1006void
1007swap_mountlist_entries(struct mountlist_itself *mountlist, int a, int b)
1008{
1009 /*@ mallocs *** */
1010 char *device = NULL;
1011 char *mountpoint = NULL;
1012 char *format = NULL;
1013
1014 long long size;
1015
1016 assert(mountlist != NULL);
1017 assert(a >= 0);
1018 assert(b >= 0);
1019
1020 mr_asprintf(&device, "%s", mountlist->el[a].device);
1021 mr_asprintf(&mountpoint, "%s", mountlist->el[a].mountpoint);
1022 mr_asprintf(&format, "%s", mountlist->el[a].format);
1023
1024 size = mountlist->el[a].size;
1025
1026 strcpy(mountlist->el[a].device, mountlist->el[b].device);
1027 strcpy(mountlist->el[a].mountpoint, mountlist->el[b].mountpoint);
1028 strcpy(mountlist->el[a].format, mountlist->el[b].format);
1029
1030 mountlist->el[a].size = mountlist->el[b].size;
1031
1032 strcpy(mountlist->el[b].device, device);
1033 strcpy(mountlist->el[b].mountpoint, mountpoint);
1034 strcpy(mountlist->el[b].format, format);
1035
1036 mountlist->el[b].size = size;
1037 paranoid_free(device);
1038 paranoid_free(mountpoint);
1039 paranoid_free(format);
1040}
1041
1042/* @} - end of mountlistGroup */
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