source: MondoRescue/branches/2.2.9/mondo/src/common/libmondo-mountlist.c@ 2205

Last change on this file since 2205 was 2205, checked in by Bruno Cornec, 15 years ago
  • Cleanups
  • Fix test on return value for open (-1 is the right value to test not 0)
  • Improve asprintf usage for mountlist
  • Property svn:keywords set to Id
File size: 28.8 KB
Line 
1/* subroutines for handling mountlist
2 $Id: libmondo-mountlist.c 2205 2009-05-14 01:10:51Z bruno $
3*/
4
5
6/**
7 * @file
8 * Functions which manipulate the mountlist.
9 */
10
11#include "my-stuff.h"
12#include "mondostructures.h"
13#include "libmondo-mountlist.h"
14#include "lib-common-externs.h"
15#include "libmondo-raid-EXT.h"
16#include "libmondo-devices-EXT.h"
17#include "libmondo-tools-EXT.h"
18#include "libmondo-string-EXT.h"
19#include "newt-specific-EXT.h"
20
21/*@unused@*/
22//static char cvsid[] = "$Id: libmondo-mountlist.c 2205 2009-05-14 01:10:51Z bruno $";
23
24/* Reference to global bkpinfo */
25extern struct s_bkpinfo *bkpinfo;
26
27/**
28 * @addtogroup mountlistGroup
29 * @{
30 */
31/**
32 * Evaluate a drive within the mountlist for flaws. For example, too many
33 * primary partitions, the first logical isn't 5, duplicate partitions,
34 * ovar-allocated or under-allocated, unsupported format, silly size, or
35 * silly mountpoint. Under FreeBSD, this checks the disklabel too, for the above-mentioned
36 * errors as well as too many BSD partitions (more than 'h').
37 * @param mountlist The mountlist to check.
38 * @param drive The drive to check (e.g. @c /dev/hda).
39 * @param flaws_str Where to put the found flaws (human-readable).
40 * @return The number of flaws found (0 for success).
41 * @see evaluate_mountlist
42 */
43int evaluate_drive_within_mountlist(struct mountlist_itself *mountlist,
44 char *drive, char *flaws_str)
45#ifdef __FreeBSD__
46{
47// FreeBSD-specific version of evaluate_drive_within_mountlist()
48 /*@ int ************************************************************* */
49 int prev_part_no = 0;
50 int curr_part_no = 0;
51 int pos = 0, npos = 0;
52 int res = 0;
53 int mountpoint_copies = 0;
54 int device_copies = 0;
55 int i = 0;
56 int cur_sp_no = 0;
57 int prev_sp_no = 0;
58 int foundsome = FALSE;
59
60 /*@ buffers ******************************************************** */
61 char tmp[MAX_STR_LEN];
62 char device[MAX_STR_LEN];
63 char mountpoint[MAX_STR_LEN];
64
65 /*@ long *********************************************************** */
66 long physical_drive_size = 0;
67 long amount_allocated = 0;
68
69 /*@ pointers ******************************************************* */
70 char *part_table_fmt;
71
72 /*@ initialize ***************************************************** */
73 flaws_str[0] = '\0';
74 prev_part_no = 0;
75 tmp[0] = '\0';
76
77
78 physical_drive_size = get_phys_size_of_drive(drive);
79
80 if (physical_drive_size < 0) {
81 sprintf(tmp, " %s does not exist.", drive);
82 strcat(flaws_str, tmp);
83 } else {
84 sprintf(tmp, "%s is %ld MB", drive, physical_drive_size);
85 }
86 log_it(tmp);
87
88
89 /* check DD */
90 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
91 sprintf(device, "%s%c", drive, cur_sp_no);
92 if (find_device_in_mountlist(mountlist, device) >= 0)
93 foundsome = TRUE;
94 }
95 if (foundsome) {
96 for (cur_sp_no = 'a'; cur_sp_no < 'z'; ++cur_sp_no) {
97 sprintf(device, "%s%c", drive, cur_sp_no);
98 pos = find_device_in_mountlist(mountlist, device);
99 if (pos < 0) {
100 continue;
101 }
102 strcpy(mountpoint, mountlist->el[pos].mountpoint);
103 /* is it too big? */
104 if (curr_part_no > 'h') {
105 sprintf(tmp, " Can only have up to 'h' in disklabel.");
106 log_it(tmp);
107 strcat(flaws_str, tmp);
108 res++;
109 }
110 /* does partition /dev/adXsYZ exist more than once in the mountlist? */
111 for (i = 0, mountpoint_copies = 0, device_copies = 0;
112 i < mountlist->entries; i++) {
113 if (!strcmp(device, mountlist->el[i].device)) {
114 device_copies++;
115 }
116 }
117 if (device_copies > 1) {
118 sprintf(tmp, " %s %s's.", number_to_text(device_copies),
119 device);
120 if (!strstr(flaws_str, tmp)) {
121 log_it(tmp);
122 strcat(flaws_str, tmp);
123 res++;
124 }
125 }
126 /* silly partition size? */
127 if (mountlist->el[pos].size < 8192
128 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
129 sprintf(tmp, " %s is tiny!", device);
130 log_it(tmp);
131 strcat(flaws_str, 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 sprintf(tmp, " %s has a weird mountpoint.", device);
142 log_it(tmp);
143 strcat(flaws_str, tmp);
144 res++;
145 }
146 /* is format sensible? */
147 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
148 sprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
149 log_it(tmp);
150 strcat(flaws_str, tmp);
151 res++;
152 }
153 amount_allocated += mountlist->el[pos].size / 1024L;
154 prev_sp_no = cur_sp_no;
155 }
156 }
157
158 npos = pos = 0;
159 for (curr_part_no = 1; curr_part_no < 99; curr_part_no++) {
160 build_partition_name(device, drive, curr_part_no);
161 pos = find_device_in_mountlist(mountlist, device);
162 npos = 0;
163 for (cur_sp_no = 'a'; cur_sp_no <= 'h'; cur_sp_no++) {
164 sprintf(device, "%ss%i%c", device, curr_part_no, cur_sp_no);
165 if (find_device_in_mountlist(mountlist, device) >= 0)
166 npos++;
167 }
168 if (((pos >= 0) || npos) && foundsome) {
169 sprintf(flaws_str + strlen(flaws_str),
170 " %s has both DD and PC-style partitions.", drive);
171 return ++res; // 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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, tmp)) {
214 log_it(tmp);
215 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, tmp);
329 }
330 if (res) {
331 return (FALSE);
332 } else {
333 return (TRUE);
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
354 /*@ long *********************************************************** */
355 long physical_drive_size = 0L;
356 long amount_allocated = 0L;
357
358 /*@ pointers ******************************************************* */
359 char *part_table_fmt = NULL;
360
361 /*@ initialize ***************************************************** */
362 assert_string_is_neither_NULL_nor_zerolength(drive);
363 assert(mountlist != NULL);
364 assert(flaws_str != NULL);
365
366 malloc_string(tmp);
367 malloc_string(device);
368 flaws_str[0] = '\0';
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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, 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 strcat(flaws_str, tmp);
477 }
478
479 endoffunc:
480 paranoid_free(tmp);
481 paranoid_free(device);
482
483 if (res) {
484 return (FALSE);
485 } else {
486 return (TRUE);
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 malloc_string(tmp);
520 malloc_string(flaws_str);
521 assert(mountlist != NULL);
522 assert(flaws_str_A != NULL);
523 assert(flaws_str_B != NULL);
524 assert(flaws_str_C != NULL);
525 flaws_str[0] = '\0';
526
527 make_list_of_drives_in_mountlist(mountlist, drivelist);
528
529 log_it("Evaluating mountlist...");
530
531 for (i = 0; i < drivelist->entries; i++) {
532 if (strstr
533 (drivelist->el[i].device,
534 DONT_KNOW_HOW_TO_EVALUATE_THIS_DEVICE_TYPE)) {
535 sprintf(tmp, " Not evaluating %s (I don't know how yet)",
536 drivelist->el[i].device);
537 log_it(tmp);
538 tmp[0] = '\0';
539 } else {
540 if (!evaluate_drive_within_mountlist
541 (mountlist, drivelist->el[i].device, tmp)) {
542 res++;
543 }
544 }
545 strcat(flaws_str, tmp);
546 }
547 res += look_for_duplicate_mountpoints(mountlist, flaws_str);
548 return (spread_flaws_across_three_lines
549 (flaws_str, flaws_str_A, flaws_str_B, flaws_str_C, res));
550}
551
552
553/**
554 * Find the index number of @p device in the mountlist.
555 * The device given must match @p mountlist->el[N].device exactly, case-sensitive.
556 * @param mountlist The mountlist to search in.
557 * @param device The device to search for.
558 * @return The zero-based index of the device, or -1 if it could not be found.
559 */
560int
561find_device_in_mountlist(struct mountlist_itself *mountlist, char *device)
562{
563
564 /*@ int ************************************************************** */
565 int i = 0;
566
567 assert(mountlist != NULL);
568 assert_string_is_neither_NULL_nor_zerolength(device);
569 for (i = 0;
570 i < mountlist->entries
571 && strcmp(mountlist->el[i].device, device) != 0; i++);
572
573 if (i == mountlist->entries) {
574 return (-1);
575 } else {
576 return (i);
577 }
578}
579
580
581/**
582 * Look for duplicate mountpoints in @p mountlist.
583 * @param mountlist The mountlist to check.
584 * @param flaws_str The flaws string to append the results to.
585 * @return The number of mountpoints that have duplicates, or 0 for success.
586 */
587int
588look_for_duplicate_mountpoints(struct mountlist_itself *mountlist,
589 char *flaws_str)
590{
591
592 /*@ int ************************************************************* */
593 int res = 0;
594 int currline = 0;
595 int i = 0;
596 int copies = 0;
597 int last_copy = 0;
598
599 /*@ buffetr ********************************************************* */
600 char *curr_mountpoint = NULL;
601 char *tmp = NULL;
602
603 assert(mountlist != NULL);
604 assert(flaws_str != NULL);
605
606 for (currline = 0; currline < mountlist->entries; currline++) {
607 asprintf(&curr_mountpoint, "%s", mountlist->el[currline].mountpoint);
608 for (i = 0, copies = 0, last_copy = -1; i < mountlist->entries;
609 i++) {
610 if (!strcmp(mountlist->el[i].mountpoint, curr_mountpoint)
611 && strcmp(mountlist->el[i].mountpoint, "lvm")
612 && strcmp(mountlist->el[i].mountpoint, "swap")) {
613 last_copy = i;
614 copies++;
615 }
616 }
617 if (copies > 1 && last_copy == currline
618 && strcmp(curr_mountpoint, "raid")) {
619 asprintf(&tmp, " %s %s's.", number_to_text(copies),
620 curr_mountpoint);
621 strcat(flaws_str, tmp);
622 log_it(tmp);
623 paranoid_free(tmp);
624 res++;
625 }
626 paranoid_free(curr_mountpoint);
627 }
628 return (res);
629}
630
631
632/**
633 * Make a list of the drives mentioned in the mountlist.
634 * @param mountlist The mountlist to examine.
635 * @param drivelist Where to put the list of drives found.
636 * @return The number of physical (non-RAID non-LVM) drives found, or \<= 0 for error.
637 */
638int
639make_list_of_drives_in_mountlist(struct mountlist_itself *mountlist,
640 struct list_of_disks *drivelist)
641{
642
643 /*@ int ************************************************************* */
644 int lino;
645 int noof_drives;
646 int j;
647
648 /*@ buffers ********************************************************* */
649 char *drive = NULL;
650
651 long long size;
652
653 assert(mountlist != NULL);
654 assert(drivelist != NULL);
655 log_it("Making list of drives");
656 for (lino = 0, noof_drives = 0; lino < mountlist->entries; lino++) {
657
658 asprintf(&drive, "%s", mountlist->el[lino].device);
659 if (!strncmp(drive, RAID_DEVICE_STUB, strlen(RAID_DEVICE_STUB))) {
660 log_msg(8, "Not putting %s in list of drives: it's a virtual drive", drive);
661 paranoid_free(drive);
662 continue;
663 }
664
665 size = mountlist->el[lino].size;
666 if (size == 0) {
667 log_msg(8, "Not putting %s in list of drives: it has zero size (maybe an LVM volume)", drive);
668 paranoid_free(drive);
669 continue;
670 }
671
672 log_msg(8, "Putting %s with size %lli in list of drives", drive, size);
673
674 (void) truncate_to_drive_name(drive);
675 for (j = 0;
676 j < noof_drives
677 && strcmp(drivelist->el[j].device, drive) != 0; j++) {
678 paranoid_free(drive);
679 continue;
680 }
681 if (j == noof_drives) {
682 strcpy(drivelist->el[noof_drives++].device, drive);
683 }
684 paranoid_free(drive);
685 }
686 drivelist->entries = noof_drives;
687 log_msg(8, "Made list of drives");
688
689 return (noof_drives);
690}
691
692
693/**
694 * Make a list of RAID partitions not currently associated with any RAID device.
695 * The user may add any of these partitions to the RAID device.
696 * @param output_list Where to put the list of unallocated RAID partitions.
697 * @param mountlist The mountlist to examine.
698 * @param raidlist The raidlist to examine.
699 */
700void make_list_of_unallocated_raid_partitions(struct mountlist_itself
701 *output_list,
702 struct mountlist_itself
703 *mountlist,
704 struct raidlist_itself
705 *raidlist)
706{
707
708 /*@ int ************************************************************* */
709 int items = 0;
710 int i = 0;
711 int used_by = 0;
712
713 /*@ buffers ********************************************************* */
714 char *tmp = NULL;
715
716 assert(output_list != NULL);
717 assert(mountlist != NULL);
718 assert(raidlist != NULL);
719 log_it("MLOURP -- starting");
720 items = 0;
721
722
723 for (i = 0; i < mountlist->entries; i++) {
724 if (strstr(mountlist->el[i].mountpoint, "raid")) {
725 used_by =
726 which_raid_device_is_using_this_partition(raidlist,
727 mountlist->el[i].
728 device);
729 if (used_by < 0) {
730 memcpy((void *) &output_list->el[items++],
731 (void *) &mountlist->el[i],
732 sizeof(struct mountlist_line));
733 asprintf(&tmp,
734 "%s is available; user may choose to add it to raid device",
735 output_list->el[items - 1].device);
736 log_it(tmp);
737 paranoid_free(tmp);
738 }
739 }
740 }
741 output_list->entries = items;
742 log_it("MLUORP -- ending");
743}
744
745
746/**
747 * Get the size of a mountlist entry by the @c device field.
748 * @param mountlist The mountlist to search in.
749 * @param device The device to search for
750 * @return The size of the device (in KB), or -1 if it could not be found.
751 */
752long long
753size_of_specific_device_in_mountlist(struct mountlist_itself *mountlist,
754 char *device)
755{
756 /*@ int ************************************************************** */
757 int i = 0;
758
759
760 assert(mountlist != NULL);
761 assert_string_is_neither_NULL_nor_zerolength(device);
762
763 for (i = 0;
764 i < mountlist->entries && strcmp(mountlist->el[i].device, device);
765 i++);
766 if (i == mountlist->entries) {
767 return (-1);
768 } else {
769 return (mountlist->el[i].size);
770 }
771}
772
773
774/**
775 * Load a file on disk into @p mountlist.
776 * The file on disk should consist of multiple lines, each containing 4 or 5
777 * columns: the device, the mountpoint, the filesystem type, the size in kilobytes, and optionally the filesystem label.
778 * Comments begin with a '#' without any leading whitespace. Any duplicate
779 * entries are renamed.
780 * @param mountlist The mountlist to load into.
781 * @param fname The name of the file to load the mountlist from.
782 * @return 0 for success, 1 for failure.
783 */
784int load_mountlist(struct mountlist_itself *mountlist, char *fname)
785{
786 FILE *fin = NULL;
787 /* malloc ** */
788 char *incoming = NULL;
789 char *siz = NULL;
790 char *tmp = NULL;
791 char *p = NULL;
792
793 int items = 0;
794 int j = 0;
795 int res = 0;
796
797 assert(mountlist != NULL);
798 assert_string_is_neither_NULL_nor_zerolength(fname);
799
800 if (!(fin = fopen(fname, "r"))) {
801 log_it("Unable to open mountlist - '%s'", fname);
802 log_to_screen("Cannot open mountlist");
803 return (1);
804 }
805 malloc_string(incoming);
806 malloc_string(siz);
807 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
808 log_it("Loading mountlist...");
809 while (!feof(fin)) {
810#if linux
811 res = sscanf(incoming,
812 "%s %s %s %s %s",
813 mountlist->el[items].device,
814 mountlist->el[items].mountpoint,
815 mountlist->el[items].format,
816 siz, mountlist->el[items].label);
817 if (res < 5) {
818 /* no label found */
819 asprintf(&tmp, "%s", "");
820 mountlist->el[items].label = tmp;
821 }
822#elif __FreeBSD__
823 res = sscanf(incoming,
824 "%s %s %s %s",
825 mountlist->el[items].device,
826 mountlist->el[items].mountpoint,
827 mountlist->el[items].format, siz);
828 asprintf(&tmp, "%s", "");
829 mountlist->el[items].label = tmp;
830#endif
831
832 if (!strcmp(mountlist->el[items].device, "/proc") ||
833 !strcmp(mountlist->el[items].device, "proc") ||
834 !strcmp(mountlist->el[items].device, "/sys") ||
835 !strcmp(mountlist->el[items].device, "sys") ||
836 !strcmp(mountlist->el[items].device, "/devpts") ||
837 !strcmp(mountlist->el[items].device, "devpts")
838 ) {
839 log_msg(1,
840 "Ignoring %s in mountlist - not loading that line :) ",
841 mountlist->el[items].device);
842 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
843 continue;
844 }
845 mountlist->el[items].size = atoll(siz);
846 if (mountlist->el[items].device[0] != '\0'
847 && mountlist->el[items].device[0] != '#') {
848 if (items >= ARBITRARY_MAXIMUM) {
849 log_to_screen("Too many lines in mountlist.. ABORTING");
850 finish(1);
851 }
852 for (j = 0;
853 j < items
854 && strcmp(mountlist->el[j].device,
855 mountlist->el[items].device); j++);
856 if (j < items) {
857 strcat(mountlist->el[items].device, "_dup");
858 asprintf(&tmp,
859 "Duplicate entry in mountlist - renaming to %s",
860 mountlist->el[items].device);
861 log_it(tmp);
862 paranoid_free(tmp);
863 }
864 asprintf(&tmp, "%s", mountlist->el[items].device);
865 if (strstr(tmp, "/dev/md/")) {
866 log_it("format_device() --- Contracting %s", tmp);
867 p = strrchr(tmp, '/');
868 if (p) {
869 *p = *(p + 1);
870 *(p + 1) = *(p + 2);
871 *(p + 2) = *(p + 3);
872 }
873 log_it("It was %s; it is now %s",
874 mountlist->el[items].device, tmp);
875 strcpy(mountlist->el[items].device, tmp);
876 }
877 paranoid_free(tmp);
878
879 log_it("%s %s %s %lld %s",
880 mountlist->el[items].device,
881 mountlist->el[items].mountpoint,
882 mountlist->el[items].format,
883 mountlist->el[items].size,
884 mountlist->el[items].label);
885 items++;
886 }
887 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
888 }
889 paranoid_fclose(fin);
890 mountlist->entries = items;
891
892 log_it("Mountlist loaded successfully.");
893 log_it("%d entries in mountlist", items);
894
895 paranoid_free(incoming);
896 paranoid_free(siz);
897 return (0);
898}
899
900
901
902/**
903 * Save @p mountlist to a file on disk.
904 * @param mountlist The mountlist to save.
905 * @param fname The file to save it to.
906 * @return 0 for success, 1 for failure.
907 * @see load_mountlist
908 */
909int save_mountlist_to_disk(struct mountlist_itself *mountlist, char *fname)
910{
911 FILE *fout;
912 int i;
913
914 assert(mountlist != NULL);
915 assert_string_is_neither_NULL_nor_zerolength(fname);
916
917 log_it("save_mountlist_to_disk() --- saving to %s", fname);
918 if (!(fout = fopen(fname, "w"))) {
919 log_OS_error("WMTD - Cannot openout mountlist");
920 return (1);
921 }
922 for (i = 0; i < mountlist->entries; i++) {
923 fprintf(fout,
924 "%-15s %-15s %-15s %-15lld %-15s\n",
925 mountlist->el[i].device, mountlist->el[i].mountpoint,
926 mountlist->el[i].format, mountlist->el[i].size,
927 mountlist->el[i].label);
928 }
929 paranoid_fclose(fout);
930 return (0);
931}
932
933
934/**
935 * Sort the mountlist alphabetically by device.
936 * The sorting is done in-place.
937 * @param mountlist The mountlist to sort.
938 */
939void sort_mountlist_by_device(struct mountlist_itself *mountlist)
940{
941 int diff;
942 int lino = -999;
943
944 assert(mountlist != NULL);
945
946 while (lino < mountlist->entries) {
947 for (lino = 1; lino < mountlist->entries; lino++) {
948 diff =
949 strcmp_inc_numbers(mountlist->el[lino - 1].device,
950 mountlist->el[lino].device);
951 if (diff > 0) {
952 swap_mountlist_entries(mountlist, lino - 1, lino);
953 break;
954 }
955 }
956 }
957}
958
959
960/**
961 * Sort the mountlist alphabetically by mountpoint.
962 * The sorting is done in-place.
963 * @param mountlist The mountlist to sort.
964 * @param reverse If TRUE, then do a reverse sort.
965 */
966void
967sort_mountlist_by_mountpoint(struct mountlist_itself *mountlist,
968 bool reverse)
969{
970 int diff;
971 int lino = -999;
972
973 assert(mountlist != NULL);
974
975 while (lino < mountlist->entries) {
976 for (lino = 1; lino < mountlist->entries; lino++) {
977 diff =
978 strcmp(mountlist->el[lino - 1].mountpoint,
979 mountlist->el[lino].mountpoint);
980 if ((diff > 0 && !reverse) || ((diff < 0 && reverse))) {
981 swap_mountlist_entries(mountlist, lino - 1, lino);
982 break;
983 }
984 }
985 }
986}
987
988
989/**
990 * Swap two entries in the mountlist in-place.
991 * @param mountlist The mountlist to swap the entries in.
992 * @param a The index number of the first entry.
993 * @param b The index number of the second entry.
994 */
995void
996swap_mountlist_entries(struct mountlist_itself *mountlist, int a, int b)
997{
998 /*@ mallocs *** */
999 char *device = NULL;
1000 char *mountpoint = NULL;
1001 char *format = NULL;
1002
1003 long long size;
1004
1005 assert(mountlist != NULL);
1006 assert(a >= 0);
1007 assert(b >= 0);
1008
1009 asprintf(&device, "%s", mountlist->el[a].device);
1010 asprintf(&mountpoint, "%s", mountlist->el[a].mountpoint);
1011 asprintf(&format, "%s", mountlist->el[a].format);
1012
1013 size = mountlist->el[a].size;
1014
1015 strcpy(mountlist->el[a].device, mountlist->el[b].device);
1016 strcpy(mountlist->el[a].mountpoint, mountlist->el[b].mountpoint);
1017 strcpy(mountlist->el[a].format, mountlist->el[b].format);
1018
1019 mountlist->el[a].size = mountlist->el[b].size;
1020
1021 strcpy(mountlist->el[b].device, device);
1022 strcpy(mountlist->el[b].mountpoint, mountpoint);
1023 strcpy(mountlist->el[b].format, format);
1024
1025 mountlist->el[b].size = size;
1026 paranoid_free(device);
1027 paranoid_free(mountpoint);
1028 paranoid_free(format);
1029}
1030
1031/* @} - end of mountlistGroup */
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