source: MondoRescue/branches/2.2.9/mondo/src/common/libmondo-mountlist.c@ 2384

Last change on this file since 2384 was 2384, checked in by Bruno Cornec, 15 years ago
  • Remove separate function look_for_duplicate_mountpoints used only once and whose interface created problems with caller
  • Property svn:keywords set to Id
File size: 29.3 KB
Line 
1/* subroutines for handling mountlist
2 $Id: libmondo-mountlist.c 2384 2009-09-10 11:02:56Z 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 2384 2009-09-10 11:02:56Z 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 log_it(tmp);
378 mr_strcat(flaws_str, "%s", tmp);
379 res++;
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 log_msg(2, "Processing partition %s on %s #%d in mountlist", device, drive, pos);
393 /* gap in the partition list? */
394 if (curr_part_no - prev_part_no > 1) {
395 if (prev_part_no == 0) {
396 sprintf(tmp, " Gap prior to %s.", device);
397 log_it(tmp);
398 mr_strcat(flaws_str, "%s", tmp);
399 res++;
400 } else if (curr_part_no > 5
401 || (curr_part_no <= 4 && prev_part_no > 0)) {
402 sprintf(tmp, " Gap on %s between %d and %d.", drive,
403 prev_part_no, curr_part_no);
404 log_it(tmp);
405 mr_strcat(flaws_str, "%s", tmp);
406 res++;
407 }
408 }
409 /* GPT allows more than 4 primary partitions */
410 part_table_fmt = which_partition_format(drive);
411 /* no spare primary partitions to help accommodate the logical(s)? */
412 if ((curr_part_no >= 5 && prev_part_no == 4)
413 && (strcmp(part_table_fmt, "MBR") == 0)) {
414 sprintf(tmp, " Partition 4 of %s is occupied.", drive);
415 log_it(tmp);
416 mr_strcat(flaws_str, "%s", tmp);
417 res++;
418 }
419 /* does partition /dev/hdNX exist more than once in the mountlist? */
420 for (i = 0, mountpoint_copies = 0, device_copies = 0;
421 i < mountlist->entries; i++) {
422 if (!strcmp(device, mountlist->el[i].device)) {
423 device_copies++;
424 }
425 }
426 if (device_copies > 1) {
427 sprintf(tmp, " %s %s's.", number_to_text(device_copies),
428 device);
429 if (!strstr(flaws_str, tmp)) {
430 log_it(tmp);
431 mr_strcat(flaws_str, "%s", tmp);
432 res++;
433 }
434 }
435 /* silly partition size? */
436 if (mountlist->el[pos].size < 8192
437 && strcmp(mountlist->el[pos].mountpoint, "lvm")) {
438 sprintf(tmp, " %s is tiny!", device);
439 log_it(tmp);
440 mr_strcat(flaws_str, "%s", tmp);
441 res++;
442 }
443 /* mountpoint should begin with / unless it is swap, lvm or raid */
444 if (strcmp(mountlist->el[pos].mountpoint, "swap")
445 && strcmp(mountlist->el[pos].mountpoint, "lvm")
446 && strcmp(mountlist->el[pos].mountpoint, "raid")
447 && strcmp(mountlist->el[pos].mountpoint, "image")
448 && mountlist->el[pos].mountpoint[0] != '/') {
449 sprintf(tmp, " %s has a weird mountpoint.", device);
450 log_it(tmp);
451 mr_strcat(flaws_str, "%s", tmp);
452 res++;
453 }
454 /* is format sensible? */
455 if (!is_this_a_valid_disk_format(mountlist->el[pos].format)) {
456 sprintf(tmp, " %s has unsupported format %s.", device, mountlist->el[pos].format);
457 log_it(tmp);
458 mr_strcat(flaws_str, "%s", tmp);
459 res++;
460 }
461 /* OK, continue with main loop */
462 amount_allocated += mountlist->el[pos].size / 1024L;
463 prev_part_no = curr_part_no;
464 }
465
466 /* Over-allocated the disk? Unallocated space on disk? */
467 if (amount_allocated > physical_drive_size + 1) {
468 sprintf(tmp, " %ld MB over-allocated on %s.",
469 amount_allocated - physical_drive_size, drive);
470 log_it(tmp);
471 mr_strcat(flaws_str, "%s", tmp);
472 res++;
473 } else if (amount_allocated < physical_drive_size - 1) { /* NOT AN ERROR, JUST A WARNING :-) */
474 sprintf(tmp, " %ld MB unallocated on %s.",
475 physical_drive_size - amount_allocated, drive);
476 log_it(tmp);
477 mr_strcat(flaws_str, "%s", tmp);
478 }
479
480 endoffunc:
481 paranoid_free(tmp);
482 paranoid_free(device);
483
484 if (res == 0) {
485 mr_free(flaws_str);
486 log_msg(2, "Fine, no error in evaluate_drive_within_mountlist");
487 return (NULL);
488 } else {
489 log_msg(2, "Error in evaluate_drive_within_mountlist: %s", flaws_str);
490 return (flaws_str);
491 }
492}
493#endif
494
495
496/**
497 * Evaluate a whole mountlist for flaws. Calls evaluate_drive_within_mountlist()
498 * for each drive, and then spreads the flaws across three lines.
499 * @param mountlist The mountlist to evaluate.
500 * @param flaws_str_A Where to put the first line listing errors found.
501 * @param flaws_str_B Where to put the second line listing errors found.
502 * @param flaws_str_C Where to put the third line listing errors found.
503 * @return The number of flaws found (0 for success).
504 * @see evaluate_drive_within_mountlist
505 */
506char *evaluate_mountlist(struct mountlist_itself *mountlist, int *res) {
507
508 /*@ buffer *********************************************************** */
509 struct list_of_disks *drivelist;
510 char *tmp = NULL;
511 char *flaws_str = NULL;
512
513 int currline = 0;
514 int copies = 0;
515 int last_copy = 0;
516
517 /*@ buffetr ********************************************************* */
518 char *curr_mountpoint = NULL;
519
520 /*@ int ************************************************************** */
521 int i = 0;
522
523 /*@ initialize ******************************************************* */
524
525 *res = 0;
526 drivelist = malloc(sizeof(struct list_of_disks));
527 assert(mountlist != NULL);
528
529 mr_asprintf(&flaws_str, "%s", "");
530
531 make_list_of_drives_in_mountlist(mountlist, drivelist);
532
533 log_it("Evaluating mountlist...");
534
535 for (i = 0; i < drivelist->entries; i++) {
536 if (strstr
537 (drivelist->el[i].device,
538 DONT_KNOW_HOW_TO_EVALUATE_THIS_DEVICE_TYPE)) {
539 mr_asprintf(&tmp, " Not evaluating %s (I don't know how yet)", drivelist->el[i].device);
540 log_it(tmp);
541 paranoid_free(tmp);
542 } else {
543 log_msg(8, "Evaluating drive #%d (%s) within mountlist", i, drivelist->el[i].device);
544 tmp = evaluate_drive_within_mountlist(mountlist, drivelist->el[i].device);
545 if (tmp != NULL) {
546 (*res)++;
547 }
548 }
549 log_msg(8,"Entry: %d (%s)", i, drivelist->el[i].device);
550 /* BCO: tmp can be NULL */
551 if (tmp != NULL) {
552 log_msg(8,"Adding: %s to %s", tmp, flaws_str);
553 mr_strcat(flaws_str, "%s", tmp);
554 paranoid_free(tmp);
555 }
556 }
557
558 /* Look for duplicate mountpoints in mountlist. */
559 for (currline = 0; currline < mountlist->entries; currline++) {
560 mr_asprintf(&curr_mountpoint, "%s", mountlist->el[currline].mountpoint);
561 for (i = 0, copies = 0, last_copy = -1; i < mountlist->entries; i++) {
562 if (!strcmp(mountlist->el[i].mountpoint, curr_mountpoint)
563 && strcmp(mountlist->el[i].mountpoint, "lvm")
564 && strcmp(mountlist->el[i].mountpoint, "swap")) {
565 last_copy = i;
566 copies++;
567 }
568 }
569 if (copies > 1 && last_copy == currline
570 && strcmp(curr_mountpoint, "raid")) {
571 mr_asprintf(&tmp, " %s %s's.", number_to_text(copies), curr_mountpoint);
572 mr_strcat(flaws_str, "%s", tmp);
573 log_it(tmp);
574 paranoid_free(tmp);
575 (*res)++;
576 }
577 paranoid_free(curr_mountpoint);
578 }
579
580 return(flaws_str);
581}
582
583
584/**
585 * Find the index number of @p device in the mountlist.
586 * The device given must match @p mountlist->el[N].device exactly, case-sensitive.
587 * @param mountlist The mountlist to search in.
588 * @param device The device to search for.
589 * @return The zero-based index of the device, or -1 if it could not be found.
590 */
591int
592find_device_in_mountlist(struct mountlist_itself *mountlist, char *device)
593{
594
595 /*@ int ************************************************************** */
596 int i = 0;
597
598 assert(mountlist != NULL);
599 assert_string_is_neither_NULL_nor_zerolength(device);
600 for (i = 0;
601 i < mountlist->entries
602 && strcmp(mountlist->el[i].device, device) != 0; i++);
603
604 if (i == mountlist->entries) {
605 return (-1);
606 } else {
607 return (i);
608 }
609}
610
611
612/**
613 * Make a list of the drives mentioned in the mountlist.
614 * @param mountlist The mountlist to examine.
615 * @param drivelist Where to put the list of drives found.
616 * @return The number of physical (non-RAID non-LVM) drives found, or \<= 0 for error.
617 */
618int
619make_list_of_drives_in_mountlist(struct mountlist_itself *mountlist,
620 struct list_of_disks *drivelist)
621{
622
623 /*@ int ************************************************************* */
624 int lino;
625 int noof_drives;
626 int j;
627
628 /*@ buffers ********************************************************* */
629 char *drive = NULL;
630 char *truncdrive = NULL;
631
632 long long size;
633
634 assert(mountlist != NULL);
635 assert(drivelist != NULL);
636 log_it("Making list of drives");
637 for (lino = 0, noof_drives = 0; lino < mountlist->entries; lino++) {
638
639 mr_asprintf(&drive, "%s", mountlist->el[lino].device);
640 if (!strncmp(drive, RAID_DEVICE_STUB, strlen(RAID_DEVICE_STUB))) {
641 log_msg(8, "Not putting %s in list of drives: it's a virtual drive", drive);
642 paranoid_free(drive);
643 continue;
644 }
645
646 size = mountlist->el[lino].size;
647 if (size == 0) {
648 log_msg(8, "Not putting %s in list of drives: it has zero size (maybe an LVM volume)", drive);
649 paranoid_free(drive);
650 continue;
651 }
652
653 log_msg(8, "Putting %s with size %lli in list of drives", drive, size);
654
655 /* memory allocation */
656 truncdrive = truncate_to_drive_name(drive);
657 paranoid_free(drive);
658
659 log_msg(8, "drive truncated to %s", truncdrive);
660
661 for (j = 0;
662 j < noof_drives
663 && strcmp(drivelist->el[j].device, truncdrive) != 0; j++) {
664 continue;
665 }
666 if (j == noof_drives) {
667 strncpy(drivelist->el[noof_drives].device, truncdrive, 63);
668 drivelist->el[noof_drives].device[63] = '\0';
669 log_msg(8,"Adding drive %s to list", drivelist->el[noof_drives].device);
670 noof_drives++;
671 }
672 paranoid_free(truncdrive);
673 if (noof_drives >= MAXIMUM_DISKS_PER_RAID_DEV) {
674 log_msg(0, "Unable to handle mountlist with more than %d lines", MAXIMUM_DISKS_PER_RAID_DEV);
675 log_to_screen("Unable to handle a so big mountlist");
676 finish(1);
677 }
678 }
679 drivelist->entries = noof_drives;
680 log_msg(8, "Made list of %d drives",noof_drives);
681
682 return (noof_drives);
683}
684
685
686/**
687 * Make a list of RAID partitions not currently associated with any RAID device.
688 * The user may add any of these partitions to the RAID device.
689 * @param output_list Where to put the list of unallocated RAID partitions.
690 * @param mountlist The mountlist to examine.
691 * @param raidlist The raidlist to examine.
692 */
693void make_list_of_unallocated_raid_partitions(struct mountlist_itself
694 *output_list,
695 struct mountlist_itself
696 *mountlist,
697 struct raidlist_itself
698 *raidlist)
699{
700
701 /*@ int ************************************************************* */
702 int items = 0;
703 int i = 0;
704 int used_by = 0;
705
706 /*@ buffers ********************************************************* */
707 char *tmp = NULL;
708
709 assert(output_list != NULL);
710 assert(mountlist != NULL);
711 assert(raidlist != NULL);
712 log_it("MLOURP -- starting");
713 items = 0;
714
715
716 for (i = 0; i < mountlist->entries; i++) {
717 if (strstr(mountlist->el[i].mountpoint, "raid")) {
718 used_by =
719 which_raid_device_is_using_this_partition(raidlist,
720 mountlist->el[i].
721 device);
722 if (used_by < 0) {
723 memcpy((void *) &output_list->el[items++],
724 (void *) &mountlist->el[i],
725 sizeof(struct mountlist_line));
726 mr_asprintf(&tmp, "%s is available; user may choose to add it to raid device", output_list->el[items - 1].device);
727 log_it(tmp);
728 paranoid_free(tmp);
729 }
730 }
731 }
732 output_list->entries = items;
733 log_it("MLUORP -- ending");
734}
735
736
737/**
738 * Get the size of a mountlist entry by the @c device field.
739 * @param mountlist The mountlist to search in.
740 * @param device The device to search for
741 * @return The size of the device (in KB), or -1 if it could not be found.
742 */
743long long
744size_of_specific_device_in_mountlist(struct mountlist_itself *mountlist,
745 char *device)
746{
747 /*@ int ************************************************************** */
748 int i = 0;
749
750
751 assert(mountlist != NULL);
752 assert_string_is_neither_NULL_nor_zerolength(device);
753
754 for (i = 0;
755 i < mountlist->entries && strcmp(mountlist->el[i].device, device);
756 i++);
757 if (i == mountlist->entries) {
758 return (-1);
759 } else {
760 return (mountlist->el[i].size);
761 }
762}
763
764
765/**
766 * Load a file on disk into @p mountlist.
767 * The file on disk should consist of multiple lines, each containing 4 or 5
768 * columns: the device, the mountpoint, the filesystem type, the size in kilobytes, and optionally the filesystem label.
769 * Comments begin with a '#' without any leading whitespace. Any duplicate
770 * entries are renamed.
771 * @param mountlist The mountlist to load into.
772 * @param fname The name of the file to load the mountlist from.
773 * @return 0 for success, 1 for failure.
774 */
775int load_mountlist(struct mountlist_itself *mountlist, char *fname)
776{
777 FILE *fin = NULL;
778 /* malloc ** */
779 char *incoming = NULL;
780 char *siz = NULL;
781 char *tmp = NULL;
782 char *p = NULL;
783
784 int items = 0;
785 int j = 0;
786 int res = 0;
787
788 assert(mountlist != NULL);
789 assert_string_is_neither_NULL_nor_zerolength(fname);
790
791 if (!(fin = fopen(fname, "r"))) {
792 log_it("Unable to open mountlist - '%s'", fname);
793 log_to_screen("Cannot open mountlist");
794 return (1);
795 }
796 malloc_string(incoming);
797 malloc_string(siz);
798 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
799 log_it("Loading mountlist...");
800 while (!feof(fin)) {
801#if linux
802 res = sscanf(incoming,
803 "%s %s %s %s %s",
804 mountlist->el[items].device,
805 mountlist->el[items].mountpoint,
806 mountlist->el[items].format,
807 siz, mountlist->el[items].label);
808 if (res < 5) {
809 /* no label found */
810 log_msg(4, "no label found for %s",mountlist->el[items].device);
811 strcpy(mountlist->el[items].label,"");
812 }
813#elif __FreeBSD__
814 res = sscanf(incoming,
815 "%s %s %s %s",
816 mountlist->el[items].device,
817 mountlist->el[items].mountpoint,
818 mountlist->el[items].format, siz);
819 strcpy(mountlist->el[items].label,"");
820#endif
821
822 if (!strcmp(mountlist->el[items].device, "/proc") ||
823 !strcmp(mountlist->el[items].device, "proc") ||
824 !strcmp(mountlist->el[items].device, "/sys") ||
825 !strcmp(mountlist->el[items].device, "sys") ||
826 !strcmp(mountlist->el[items].device, "/devpts") ||
827 !strcmp(mountlist->el[items].device, "devpts")
828 ) {
829 log_msg(1,
830 "Ignoring %s in mountlist - not loading that line :) ",
831 mountlist->el[items].device);
832 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
833 continue;
834 }
835 mountlist->el[items].size = atoll(siz);
836 if (mountlist->el[items].device[0] != '\0'
837 && mountlist->el[items].device[0] != '#') {
838 for (j = 0;
839 j < items
840 && strcmp(mountlist->el[j].device,
841 mountlist->el[items].device); j++);
842 if (j < items) {
843 strcat(mountlist->el[items].device, "_dup");
844 mr_asprintf(&tmp, "Duplicate entry in mountlist - renaming to %s", mountlist->el[items].device);
845 log_it(tmp);
846 paranoid_free(tmp);
847 }
848 mr_asprintf(&tmp, "%s", mountlist->el[items].device);
849 if (strstr(tmp, "/dev/md/")) {
850 log_it("format_device() --- Contracting %s", tmp);
851 p = strrchr(tmp, '/');
852 if (p) {
853 *p = *(p + 1);
854 *(p + 1) = *(p + 2);
855 *(p + 2) = *(p + 3);
856 }
857 log_it("It was %s; it is now %s",
858 mountlist->el[items].device, tmp);
859 strcpy(mountlist->el[items].device, tmp);
860 }
861 paranoid_free(tmp);
862
863 log_it("%s %s %s %lld %s",
864 mountlist->el[items].device,
865 mountlist->el[items].mountpoint,
866 mountlist->el[items].format,
867 mountlist->el[items].size,
868 mountlist->el[items].label);
869 items++;
870 if (items >= MAX_MOUNTLIST_ENTRIES) {
871 log_to_screen("Too many lines in mountlist.. ABORTING");
872 finish(1);
873 }
874 }
875 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
876 }
877 paranoid_fclose(fin);
878 mountlist->entries = items;
879
880 log_it("Mountlist loaded successfully.");
881 log_it("%d entries in mountlist", items);
882
883 paranoid_free(incoming);
884 paranoid_free(siz);
885 return (0);
886}
887
888
889
890/**
891 * Save @p mountlist to a file on disk.
892 * @param mountlist The mountlist to save.
893 * @param fname The file to save it to.
894 * @return 0 for success, 1 for failure.
895 * @see load_mountlist
896 */
897int save_mountlist_to_disk(struct mountlist_itself *mountlist, char *fname)
898{
899 FILE *fout;
900 int i;
901
902 assert(mountlist != NULL);
903 assert_string_is_neither_NULL_nor_zerolength(fname);
904
905 log_it("save_mountlist_to_disk() --- saving to %s", fname);
906 if (!(fout = fopen(fname, "w"))) {
907 log_OS_error("WMTD - Cannot openout mountlist");
908 return (1);
909 }
910 for (i = 0; i < mountlist->entries; i++) {
911 fprintf(fout,
912 "%-15s %-15s %-15s %-15lld %-15s\n",
913 mountlist->el[i].device, mountlist->el[i].mountpoint,
914 mountlist->el[i].format, mountlist->el[i].size,
915 mountlist->el[i].label);
916 }
917 paranoid_fclose(fout);
918 return (0);
919}
920
921
922/**
923 * Sort the mountlist alphabetically by device.
924 * The sorting is done in-place.
925 * @param mountlist The mountlist to sort.
926 */
927void sort_mountlist_by_device(struct mountlist_itself *mountlist)
928{
929 int diff;
930 int lino = -999;
931
932 assert(mountlist != NULL);
933
934 while (lino < mountlist->entries) {
935 for (lino = 1; lino < mountlist->entries; lino++) {
936 diff =
937 strcmp_inc_numbers(mountlist->el[lino - 1].device,
938 mountlist->el[lino].device);
939 if (diff > 0) {
940 swap_mountlist_entries(mountlist, lino - 1, lino);
941 break;
942 }
943 }
944 }
945}
946
947
948/**
949 * Sort the mountlist alphabetically by mountpoint.
950 * The sorting is done in-place.
951 * @param mountlist The mountlist to sort.
952 * @param reverse If TRUE, then do a reverse sort.
953 */
954void
955sort_mountlist_by_mountpoint(struct mountlist_itself *mountlist,
956 bool reverse)
957{
958 int diff;
959 int lino = -999;
960
961 assert(mountlist != NULL);
962
963 while (lino < mountlist->entries) {
964 for (lino = 1; lino < mountlist->entries; lino++) {
965 diff =
966 strcmp(mountlist->el[lino - 1].mountpoint,
967 mountlist->el[lino].mountpoint);
968 if ((diff > 0 && !reverse) || ((diff < 0 && reverse))) {
969 swap_mountlist_entries(mountlist, lino - 1, lino);
970 break;
971 }
972 }
973 }
974}
975
976
977/**
978 * Swap two entries in the mountlist in-place.
979 * @param mountlist The mountlist to swap the entries in.
980 * @param a The index number of the first entry.
981 * @param b The index number of the second entry.
982 */
983void
984swap_mountlist_entries(struct mountlist_itself *mountlist, int a, int b)
985{
986 /*@ mallocs *** */
987 char *device = NULL;
988 char *mountpoint = NULL;
989 char *format = NULL;
990
991 long long size;
992
993 assert(mountlist != NULL);
994 assert(a >= 0);
995 assert(b >= 0);
996
997 mr_asprintf(&device, "%s", mountlist->el[a].device);
998 mr_asprintf(&mountpoint, "%s", mountlist->el[a].mountpoint);
999 mr_asprintf(&format, "%s", mountlist->el[a].format);
1000
1001 size = mountlist->el[a].size;
1002
1003 strcpy(mountlist->el[a].device, mountlist->el[b].device);
1004 strcpy(mountlist->el[a].mountpoint, mountlist->el[b].mountpoint);
1005 strcpy(mountlist->el[a].format, mountlist->el[b].format);
1006
1007 mountlist->el[a].size = mountlist->el[b].size;
1008
1009 strcpy(mountlist->el[b].device, device);
1010 strcpy(mountlist->el[b].mountpoint, mountpoint);
1011 strcpy(mountlist->el[b].format, format);
1012
1013 mountlist->el[b].size = size;
1014 paranoid_free(device);
1015 paranoid_free(mountpoint);
1016 paranoid_free(format);
1017}
1018
1019/* @} - end of mountlistGroup */
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