source: MondoRescue/branches/3.3/mondo/src/common/libmondo-tools.c@ 3885

Last change on this file since 3885 was 3885, checked in by Bruno Cornec, 2 months ago

Removes support for ia64 depracated in upstream kernel, and elilo
  • Property svn:keywords set to Id
File size: 39.6 KB
Line 
1/*
2 $Id: libmondo-tools.c 3885 2024-03-10 18:23:12Z bruno $
3*/
4
5
6/**
7 * @file
8 * Miscellaneous tools that didn't really fit anywhere else.
9 */
10
11#include "my-stuff.h"
12#include "mr_mem.h"
13#include "mr_sys.h"
14#include "mondostructures.h"
15
16#include "libmondo-gui-EXT.h"
17#include "libmondo-files-EXT.h"
18#include "libmondo-fork-EXT.h"
19#include "libmondo-raid-EXT.h"
20#include "libmondo-devices-EXT.h"
21#include <sys/socket.h>
22#include <netdb.h>
23#include <stdlib.h>
24#include <netinet/in.h>
25#include <arpa/inet.h>
26#include <sys/utsname.h>
27
28/*@unused@*/
29//static char cvsid[] = "$Id: libmondo-tools.c 3885 2024-03-10 18:23:12Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36
37/* Reference to global bkpinfo */
38extern struct s_bkpinfo *bkpinfo;
39
40/**
41 * @addtogroup globalGroup
42 * @{
43 */
44bool g_remount_cdrom_at_end; ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
45bool g_cd_recovery = FALSE; ///< TRUE if we're making an "autonuke" backup.
46double g_kernel_version;
47
48/**
49 * The place where /boot is mounted.
50 */
51char *g_boot_mountpt = NULL;
52
53/**
54 * The location of Mondo's home directory.
55 */
56extern char *g_mondo_home;
57
58/**
59 * The location where tmpfs is mounted, or "" if it's not mounted.
60char *g_tmpfs_mountpt = NULL;
61 */
62char *g_magicdev_command = NULL;
63
64/**
65 * The default maximum level to log messages at or below.
66 */
67int g_loglevel = DEFAULT_DEBUG_LEVEL;
68
69/* @} - end of globalGroup */
70
71
72extern pid_t g_buffer_pid;
73extern pid_t g_main_pid;
74
75extern t_bkptype g_backup_media_type;
76
77/*-----------------------------------------------------------*/
78
79
80/**
81 * @addtogroup utilityGroup
82 * @{
83 */
84/**
85 * Assertion handler. Prints a friendly message to the user,
86 * offering to ignore all, dump core, break to debugger,
87 * exit, or ignore. Intended to be used with an assert() macro.
88 *
89 * @param file The file in which the assertion triggered.
90 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
91 * @param line The line number of the assert() statement.
92 * @param exp The expression that failed (as a string).
93 */
94void _mondo_assert_fail(const char *file,
95 const char *function, int line, const char *exp)
96{
97 static int ignoring_assertions = 0;
98 bool is_valid = TRUE;
99
100 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line, function);
101 if (ignoring_assertions) {
102 log_it("Well, the user doesn't care...");
103 return;
104 }
105 if (!g_text_mode)
106 newtSuspend();
107 printf("ASSERTION FAILED: `%s'\n", exp);
108 printf("\tat %s:%d in %s\n\n", file, line, function);
109 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
110 do {
111 is_valid = TRUE;
112 switch (toupper(getchar())) {
113 case 'A': // ignore (A)ll
114 ignoring_assertions = 1;
115 break;
116 case 'B': // a(B)ort
117 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
118 raise(SIGABRT);
119 break; /* "can't get here" */
120 case 'D': // (D)ebug, aka asm("int 3")
121#ifdef __IA32__
122 __asm__ __volatile__("int $3"); // break to debugger
123#endif
124 break;
125 case 'E': // (E)xit
126 fatal_error("Failed assertion -- see above for details");
127 break; /* "can't get here" */
128 case 'I': // (I)gnore
129 break;
130 /* These next two work as follows:
131 the `default' catches the user's invalid choice and says so;
132 the '\n' catches the newline on the end and prints the prompt again.
133 */
134 case '\n':
135 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
136 break;
137 default:
138 is_valid = FALSE;
139 printf("Invalid choice.\n");
140 break;
141 }
142 } while (!is_valid);
143
144 if (ignoring_assertions) {
145 log_it("Ignoring ALL assertions from now on.");
146 } else {
147 log_it("Ignoring assertion: %s", exp);
148 }
149
150 getchar(); // skip \n
151
152 if (!g_text_mode)
153 newtResume();
154}
155
156/**
157 * Clean's up users' KDE desktops.
158 * @bug Details about this function are unknown.
159 */
160void clean_up_KDE_desktop_if_necessary(void)
161{
162 char *tmp = NULL;
163
164 mr_asprintf(tmp, "for i in `find /root /home -maxdepth 2 -type d -name Desktop -maxdepth 2`; do file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } else { print $0;};}' $file.old > $file ; fi ; done");
165 run_program_and_log_output(tmp, 5);
166 mr_free(tmp);
167}
168
169
170/**
171 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
172 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
173 *
174 * @param home_sz String to store the home directory ("" if it could not be found).
175 * @return 0 for success, nonzero for failure.
176 */
177int find_and_store_mondoarchives_home(char *home_sz)
178{
179 assert(home_sz != NULL);
180 strcpy(home_sz, MONDO_SHARE);
181 return (0);
182}
183
184
185char *get_architecture(void) {
186#ifdef __IA32__
187# ifdef __X86_64__
188 return ("x86_64");
189# else
190 return ("i386");
191# endif
192#endif
193 return ("unknown");
194}
195
196
197char *get_uname_m(void) {
198
199 struct utsname utsn;
200 char *tmp = NULL;
201
202 uname(&utsn);
203 mr_asprintf(tmp, "%s", utsn.machine);
204 return (tmp);
205}
206
207
208
209double get_kernel_version(void)
210{
211 char *p = NULL;
212 char *tmp = NULL;
213 double d;
214#ifdef __FreeBSD__
215 // JOSH - FIXME :)
216 d = 5.2; // :-)
217#else
218 tmp = call_program_and_get_last_line_of_output("uname -r");
219 p = strchr(tmp, '.');
220 if (p) {
221 p = strchr(++p, '.');
222 if (p) {
223 while (*p) {
224 *p = *(p + 1);
225 p++;
226 }
227 }
228 }
229 d = atof(tmp);
230 mr_free(tmp);
231#endif
232 log_msg(1, "g_kernel_version = %f", d);
233
234 if (g_kernel_version < 2.6) {
235 fatal_error("Please use MondoRescue < 3.3.0 to support that old kernel or upgrade your distribution :-)");
236 }
237 return(d);
238}
239
240
241/**
242 * Get the current time.
243 * @return number of seconds since the epoch.
244 */
245long get_time()
246{
247 return (long) time((void *) 0);
248}
249
250
251/**
252 * Initialize a RAID volume structure, setting fields to zero. The
253 * actual hard drive is unaffected.
254 *
255 * @param raidrec The RAID volume structure to initialize.
256 * @note This function is system dependent.
257 */
258#ifdef __FreeBSD__
259void initialize_raidrec(struct vinum_volume *raidrec)
260{
261 int i, j;
262 raidrec->volname[0] = '\0';
263 raidrec->plexes = 0;
264 for (i = 0; i < 9; ++i) {
265 raidrec->plex[i].raidlevel = -1;
266 raidrec->plex[i].stripesize = 0;
267 raidrec->plex[i].subdisks = 0;
268 for (j = 0; j < 9; ++j) {
269 strcpy(raidrec->plex[i].sd[j].which_device, "");
270 }
271 }
272}
273#else
274void initialize_raidrec(struct raid_device_record *raidrec)
275{
276 assert(raidrec != NULL);
277 raidrec->raid_device[0] = '\0';
278 raidrec->raid_level = -9;
279 raidrec->persistent_superblock = 1;
280 raidrec->chunk_size = 64;
281 raidrec->parity = -1;
282 raidrec->data_disks.entries = 0;
283 raidrec->spare_disks.entries = 0;
284 raidrec->parity_disks.entries = 0;
285 raidrec->failed_disks.entries = 0;
286 raidrec->additional_vars.entries = 0;
287}
288#endif
289
290
291
292
293/**
294 * Insert modules that Mondo requires.
295 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
296 * @c msdosfs and @c ext2fs for FreeBSD.
297 */
298void insmod_crucial_modules(void)
299{
300#ifdef __FreeBSD__
301 paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
302 paranoid_system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
303#else
304 paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
305#endif
306}
307
308/* compute the final options for bootable media, considering the command and the boot type */
309char *mr_compute_uefi_string(char *isofs_cmd) {
310
311 char *uefistr = NULL;
312 char *mondo_mkisofs_sz = NULL;
313
314 /* real media */
315 if (strstr(isofs_cmd,"growisofs")) {
316 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
317 } else {
318 /* iso image */
319 if (bkpinfo->boot_type == UEFI) {
320 if (strstr(isofs_cmd,"xorriso")) {
321 /* xorriso needs another '-' before efi-boot */
322 mr_asprintf(uefistr, "%s -%s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
323 } else {
324 mr_asprintf(uefistr, "%s %s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
325 }
326 } else {
327 mr_asprintf(uefistr, "%s",MONDO_MKISOFS_CMS);
328 }
329 mr_asprintf(mondo_mkisofs_sz, "%s%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX, uefistr);
330 }
331
332 return(mondo_mkisofs_sz);
333}
334
335/**
336 * Finish configuring the backup information structure. Call this function
337 * to set the parameters that depend on those that can be given on the command
338 * line.
339 *
340 * @param bkpinfo The backup information structure. Fields modified/used:
341 * - Used: @c bkpinfo->backup_data
342 * - Used: @c bkpinfo->backup_media_type
343 * - Used: @c bkpinfo->compression_level
344 * - Used: @c bkpinfo->include_paths
345 * - Used: @c bkpinfo->prefix
346 * - Used: @c bkpinfo->isodir
347 * - Used: @c bkpinfo->manual_cd_tray
348 * - Used: @c bkpinfo->make_cd_use_lilo
349 * - Used: @c bkpinfo->media_device
350 * - Used: @c bkpinfo->netfs_mount
351 * - Used: @c bkpinfo->scratchdir
352 * - Used: @c bkpinfo->tmpdir
353 * - Used: @c bkpinfo->use_lzo
354 * - Modified: @c bkpinfo->call_before_iso
355 * - Modified: @c bkpinfo->call_make_iso
356 * - Modified: @c bkpinfo->optimal_set_size
357 * - Modified: @c bkpinfo->zip_exe
358 * - Modified: @c bkpinfo->zip_suffix
359 *
360 * @return number of errors, or 0 for success.
361 * @note Also creates directories that are specified in the @c bkpinfo structure but
362 * do not exist.
363 */
364int post_param_configuration()
365{
366 char *extra_cdrom_params = NULL;
367 char *mondo_mkisofs_sz = NULL;
368 char *command = NULL;
369 char *isofs_cmd = NULL;
370 int retval = 0;
371 char *cdr_exe = NULL;
372 char *tmp = NULL;
373 char *call_before_iso_user = NULL;
374 char *iso_dev = NULL;
375 char *iso_mnt = NULL;
376 char *iso_tmp = NULL;
377 char *iso_dir = NULL;
378
379 assert(bkpinfo != NULL);
380
381 bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024L;
382
383 log_msg(1, "Post-param");
384 if (bkpinfo->backup_media_type == tape) {
385 if (whine_if_not_found("mt") == 1) {
386 fatal_error("Please install the mt command");
387 }
388 log_msg(1, "Tape");
389 if (bkpinfo->media_device == NULL) {
390 return(1);
391 }
392 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
393 log_msg(1, "tmp = '%s'", tmp);
394 if (run_program_and_log_output(tmp, 3)) {
395 mr_free(tmp);
396 fatal_error("Unable to open tape device. If you haven't specified it with -d, do so. If you already have, check your parameter. I think it's wrong.");
397 }
398 mr_free(tmp);
399 }
400 if (bkpinfo->backup_media_type == iso)
401 make_hole_for_dir(bkpinfo->isodir);
402
403 run_program_and_log_output("uname -a", 5);
404 run_program_and_log_output("cat /etc/*-release", 5);
405 run_program_and_log_output("cat /etc/*issue*", 5);
406#ifdef __FreeBSD__
407#else
408 run_program_and_log_output("cat /proc/cpuinfo", 5);
409 /*
410 run_program_and_log_output("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
411 */
412#endif
413
414 if (bkpinfo->use_lzo) {
415 mr_asprintf(bkpinfo->zip_exe, "%s", "lzop");
416 mr_asprintf(bkpinfo->zip_suffix, "%s", "lzo");
417 } else if (bkpinfo->use_gzip) {
418 mr_asprintf(bkpinfo->zip_exe, "%s", "gzip");
419 mr_asprintf(bkpinfo->zip_suffix, "%s", "gz");
420 } else if (bkpinfo->use_lzma) {
421 mr_asprintf(bkpinfo->zip_exe, "%s", "xz");
422 mr_asprintf(bkpinfo->zip_suffix, "%s", "xz");
423 } else if (bkpinfo->compression_level != 0) {
424 mr_asprintf(bkpinfo->zip_exe, "%s", "bzip2");
425 mr_asprintf(bkpinfo->zip_suffix, "%s", "bz2");
426 } else {
427 mr_free(bkpinfo->zip_exe);
428 mr_free(bkpinfo->zip_suffix);
429 }
430
431 if (bkpinfo->backup_media_type == optical) {
432 if ((cdr_exe = find_home_of_exe("growisofs")) == NULL) {
433 fatal_error("Please install growisofs.");
434 }
435 if
436#ifdef __FreeBSD__
437 (TRUE)
438#else
439 (bkpinfo->make_cd_use_lilo)
440#endif
441 {
442 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
443 }
444 else {
445 mondo_mkisofs_sz = mr_compute_uefi_string(cdr_exe);
446 }
447 mr_free(cdr_exe);
448
449 if (bkpinfo->manual_cd_tray) {
450 fatal_error("Manual CD tray + DVD not supported yet.");
451 // -m isn't supported by growisofs, BTW...
452 } else {
453 mr_asprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
454 }
455 mr_free(mondo_mkisofs_sz);
456 if (getenv ("SUDO_COMMAND")) {
457 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
458 tmp = call_program_and_get_last_line_of_output(command);
459 mr_free(command);
460 if (!strcmp(tmp, "1")) {
461 mr_free(tmp);
462 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
463 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
464 }
465 mr_free(tmp);
466 }
467 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
468 } // end of DVD code
469
470// CD-R or CD-RW
471 if (bkpinfo->backup_media_type == optical) {
472 if (!bkpinfo->manual_cd_tray) {
473 mr_asprintf(extra_cdrom_params, "-waiti ");
474 }
475 if (bkpinfo->wipe_media_first) {
476 mr_asprintf(extra_cdrom_params, "%s", "blank=fast ");
477 }
478 if ((cdr_exe = find_home_of_exe("cdrecord")) == NULL) {
479 if ((cdr_exe = find_home_of_exe("wodim")) == NULL) {
480 fatal_error("Please install either cdrecord or wodim.");
481 }
482 }
483 if ((tmp = find_home_of_exe("xorriso")) != NULL) {
484 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_XORRISO_OPT);
485 } else if ((tmp = find_home_of_exe("genisoimage")) != NULL) {
486 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_GENISOIMAGE_OPT);
487 } else if ((tmp = find_home_of_exe("mkisofs")) != NULL) {
488 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_MKISOFS_OPT);
489 } else if ((tmp = find_home_of_exe("wodim")) != NULL) {
490 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_WODIM_OPT);
491 } else {
492 fatal_error("Unable to find a command to create ISO among xorriso, genisoimage, mksiofs or wodim, please install one");
493 }
494 mr_free(tmp);
495
496 if
497#ifdef __FreeBSD__
498 (TRUE)
499#else
500 (bkpinfo->make_cd_use_lilo)
501#endif
502 {
503 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
504 }
505 else {
506 mondo_mkisofs_sz = mr_compute_uefi_string(isofs_cmd);
507 }
508 mr_free(isofs_cmd);
509
510 if (bkpinfo->manual_cd_tray) {
511 if (bkpinfo->call_before_iso == NULL) {
512 mr_asprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
513 } else {
514 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
515 mr_free(bkpinfo->call_before_iso);
516 mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
517 mr_free(call_before_iso_user);
518 }
519 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
520 mr_asprintf(bkpinfo->call_make_iso, "%s %s -v %s fs=4m dev=%s %s/"MONDO_TMPISOS, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->tmpdir);
521 } else {
522 mr_asprintf(bkpinfo->call_make_iso, "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s -", mondo_mkisofs_sz, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device);
523 }
524 mr_free(cdr_exe);
525 mr_free(mondo_mkisofs_sz);
526 mr_free(extra_cdrom_params);
527 } // end of CD code
528
529 if (bkpinfo->backup_media_type == iso) {
530
531/* Break up isodir into iso_mnt and iso_dir
532 * These will be used along with iso-dev at restore time
533 * to locate the ISOs where ever they're mounted
534 */
535
536 log_it("isodir = %s", bkpinfo->isodir);
537 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
538 log_it("command = %s", command);
539 iso_dev = call_program_and_get_last_line_of_output(command);
540 log_it("res of it = %s", iso_dev);
541 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
542 write_one_liner_data_file(tmp, iso_dev);
543 mr_free(tmp);
544 mr_free(command);
545
546 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
547 mr_free(iso_dev);
548
549 log_it("command = %s", command);
550 iso_mnt = call_program_and_get_last_line_of_output(command);
551 log_it("res of it = %s", iso_mnt);
552 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
553 write_one_liner_data_file(tmp, iso_mnt);
554 mr_free(tmp);
555 mr_free(command);
556
557 log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
558 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
559 if (strlen(iso_tmp) < strlen(iso_mnt)) {
560 mr_asprintf(iso_dir, "%s", "");
561 } else {
562 // If iso_mnt is only / then iso_dir is the full dir
563 // (the formula bellow doesn't work in this case)
564 if (strcmp(iso_mnt, "/") == 0) {
565 mr_asprintf(iso_dir, "%s", iso_tmp);
566 // else it's a part of iso_tmp
567 } else {
568 mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
569 }
570 }
571 mr_free(iso_mnt);
572 mr_free(iso_tmp);
573
574 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
575 write_one_liner_data_file(tmp, iso_dir);
576 mr_free(tmp);
577
578 log_it("iso-dir: %s", iso_dir);
579 mr_free(iso_dir);
580
581 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
582 write_one_liner_data_file(tmp, bkpinfo->prefix);
583 mr_free(tmp);
584
585 log_it("iso-prefix: %s", bkpinfo->prefix);
586
587/* End patch */
588 } // end of iso code
589
590 if (bkpinfo->backup_media_type == netfs) {
591 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
592 write_one_liner_data_file(tmp, bkpinfo->prefix);
593 mr_free(tmp);
594
595 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
596 write_one_liner_data_file(tmp, bkpinfo->isodir);
597 mr_free(tmp);
598
599 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
600 write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
601 mr_free(tmp);
602
603 if (bkpinfo->netfs_mount) {
604 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
605 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
606 mr_free(tmp);
607 } else {
608 log_it("netfs_mount is NULL");
609 retval++;
610 }
611 }
612
613 log_it("Finished processing incoming params");
614 if (retval) {
615 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
616 }
617 if (bkpinfo->include_paths == NULL) {
618 mr_asprintf(bkpinfo->include_paths, "/");
619 }
620 g_backup_media_type = bkpinfo->backup_media_type;
621 return (retval);
622}
623
624
625
626/**
627 * Check the user's system for sanity. Checks performed:
628 * - make sure user has enough RAM (32mb required, 64mb recommended)
629 * - make sure user has enough free space in @c /
630 * - check kernel for ramdisk support
631 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
632 * - make sure CD-ROM is unmounted
633 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
634 *
635 * @return number of problems with the user's setup (0 for success)
636 */
637int some_basic_system_sanity_checks()
638{
639
640 /*@ buffers ************ */
641 char *tmp = NULL;
642
643 /*@ int's *************** */
644 int retval = 0;
645
646 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
647#ifndef __FreeBSD__
648 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
649 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
650 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
651 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
652 }
653 tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
654 if (atol(tmp) < 35000) {
655 retval++;
656 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
657 }
658 if (atol(tmp) < 66000) {
659 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
660 }
661 mr_free(tmp);
662#endif
663
664 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
665 retval++;
666 log_to_screen("Unable to find " MKE2FS_OR_NEWFS " in system path.");
667 fatal_error("Please use \"su -\", not \"su\" to become root. OK?\n...and please don't e-mail the mailing list about this. Just read the message. :)");
668 }
669#ifndef __FreeBSD__
670 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
671 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
672 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
673 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
674 if (!ask_me_yes_or_no("Your kernel has no ramdisk support. That's mind-numbingly stupid but I'll allow it if you're planning to use another kernel. Are you?")) {
675 // retval++;
676 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
677 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
678 }
679 }
680 }
681#endif
682 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
683 if (system("which xorriso > /dev/null 2> /dev/null")) {
684 if (system("which genisoimage > /dev/null 2> /dev/null")) {
685 retval += whine_if_not_found("mkisofs");
686 }
687 }
688 if (system("which wodim > /dev/null 2> /dev/null")) {
689 retval += whine_if_not_found("cdrecord");
690 }
691 retval += whine_if_not_found("bzip2");
692 retval += whine_if_not_found("gzip");
693 retval += whine_if_not_found("cmp");
694 retval += whine_if_not_found("awk");
695 retval += whine_if_not_found("md5sum");
696 retval += whine_if_not_found("strings");
697 retval += whine_if_not_found("mindi");
698 retval += whine_if_not_found("buffer");
699
700 // abort if Windows partition but no ms-sys and parted
701 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
702 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -Ew efi", 0)) {
703 log_to_screen("I think you have a EFI/UEFI partition.");
704 } else {
705 log_to_screen("I think you have a Windows 9x partition.");
706 }
707 retval += whine_if_not_found("parted");
708 }
709
710 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
711 tmp = call_program_and_get_last_line_of_output("mount | grep -E 'cdr(om|w)'");
712 if (strcmp("", tmp)) {
713 if (strstr(tmp, "autofs")) {
714 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
715 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
716 log_to_screen("eject it. Thank you.");
717 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
718 } else
719 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
720 retval++;
721 mr_free(tmp);
722 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
723 }
724 }
725 mr_free(tmp);
726
727 run_program_and_log_output("cat /etc/fstab", 5);
728#ifdef __FreeBSD__
729 run_program_and_log_output("vinum printconfig", 5);
730#else
731 run_program_and_log_output("cat /etc/raidtab", 5);
732#endif
733
734 if (run_program_and_log_output("mindi -V", 1)) {
735 log_to_screen("Could not ascertain mindi's version number.");
736 log_to_screen("You have not installed Mondo and/or Mindi properly.");
737 log_to_screen("Please uninstall and reinstall them both.");
738 fatal_error("Please reinstall Mondo and Mindi.");
739 }
740 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
741 if (run_program_and_log_output(tmp, 5)) {
742 log_to_screen("%s failed for some reason.", tmp);
743 mr_free(tmp);
744 log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
745 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
746 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
747 retval++;
748 }
749 mr_free(tmp);
750
751 if (!run_program_and_log_output("mr-parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
752 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
753 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
754 }
755
756 if (retval) {
757 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
758 } else {
759 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
760 }
761 return (retval);
762}
763
764
765
766/**
767 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
768 * Seeds the random-number generator, loads important modules, checks the sanity
769 * of the user's Linux distribution, and deletes logfile.
770 * @param bkpinfo The backup information structure. Will be initialized.
771 * @return number of errors (0 for success)
772 */
773int pre_param_configuration()
774{
775 int res = 0;
776 char *tmp = NULL;
777
778 make_hole_for_dir(MNT_CDROM);
779 assert(bkpinfo != NULL);
780 srandom((unsigned long) (time(NULL)));
781 insmod_crucial_modules();
782 if (bkpinfo->disaster_recovery) {
783 if (!does_nonMS_partition_exist()) {
784 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
785 }
786 }
787
788 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
789 run_program_and_log_output(tmp, FALSE);
790 paranoid_free(tmp);
791 if (find_and_store_mondoarchives_home(g_mondo_home)) {
792 fprintf(stderr, "Cannot find Mondo's homedir. I think you have >1 'mondo' directory on your hard disk. Please delete the superfluous 'mondo' directories and try again\n");
793 res++;
794 return (res);
795 }
796 res += some_basic_system_sanity_checks();
797 if (res) {
798 log_it("Your distribution did not pass Mondo's sanity test.");
799 }
800 g_current_media_number = 1;
801 return (res);
802}
803
804/* From busybox under GPLv2 */
805#ifndef HAVE_MKDTEMP
806/* This is now actually part of POSIX.1, but was only added in 2008 */
807char* mkdtemp(char *template)
808{
809 if (mkstemp(template) == -1) {
810 return NULL;
811 }
812 unlink(template);
813 if (mkdir(template, 0700) != 0) {
814 return NULL;
815 }
816 return template;
817}
818#endif
819
820void setup_tmpdir(char *path) {
821
822 char *tmp = NULL;
823
824 if (bkpinfo->tmpdir != NULL) {
825 /* purging a potential old tmpdir */
826 if (chdir("/tmp")) {
827 // FIXME
828 }
829 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
830 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
831 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
832 } else {
833 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
834 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
835 }
836 paranoid_system(tmp);
837 mr_free(tmp);
838 }
839
840 /* Always take in account arg first, then env, then default */
841 if (path != NULL) {
842 mr_system("mkdir -p %s",path);
843 log_it("Created temporary directory %s", path);
844 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
845 } else if (getenv("TMPDIR")) {
846 mr_system("mkdir -p %s",getenv("TMPDIR"));
847 log_it("Created temporary directory %s", getenv("TMPDIR"));
848 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
849 } else if (getenv("MRTMP")) {
850 mr_system("mkdir -p %s",getenv("MRTMP"));
851 log_it("Created temporary directory %s", getenv("MRTMP"));
852 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
853 } else {
854 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
855 }
856 mr_free(bkpinfo->tmpdir);
857 bkpinfo->tmpdir = mkdtemp(tmp);
858 if (bkpinfo->tmpdir == NULL) {
859 printf("Failed to create global tmp directory %s for Mondo.",tmp);
860 mr_free(tmp);
861 finish(-1);
862 }
863 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
864 mr_system("mkdir -p %s/tmpfs", bkpinfo->tmpdir);
865}
866
867void setup_scratchdir(char *path) {
868
869 char *tmp = NULL;
870
871 if (bkpinfo->scratchdir != NULL) {
872 /* purging a potential old scratchdir */
873 if (chdir("/tmp")) {
874 // FIXME
875 }
876 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
877 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
878 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
879 } else {
880 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
881 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
882 }
883 paranoid_system(tmp);
884 mr_free(tmp);
885 }
886
887 /* Always take in account arg first, then env, then default */
888 if (path != NULL) {
889 mr_system("mkdir -p %s",path);
890 log_it("Created scratch directory %s", path);
891 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
892 } else if (getenv("MRSCRATCH")) {
893 mr_system("mkdir -p %s",getenv("MRSCRATCH"));
894 log_it("Created scratch directory %s", getenv("MRSCRATCH"));
895 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
896 } else {
897 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
898 }
899 mr_free(bkpinfo->scratchdir);
900 bkpinfo->scratchdir = mkdtemp(tmp);
901 if (bkpinfo->scratchdir == NULL) {
902 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
903 mr_free(tmp);
904 finish(-1);
905 }
906 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
907 mr_system("mkdir -p %s", bkpinfo->scratchdir);
908}
909
910
911/**
912 * Reset all fields of the backup information structure to a sensible default.
913 * @param bkpinfo The @c bkpinfo to reset.
914 */
915void reset_bkpinfo()
916{
917 assert(bkpinfo != NULL);
918 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
919
920 bkpinfo->media_device = NULL;
921 bkpinfo->media_size = -1;
922 bkpinfo->boot_loader = '\0';
923 bkpinfo->boot_device = NULL;
924 bkpinfo->zip_exe = NULL;
925 bkpinfo->zip_suffix = NULL;
926 bkpinfo->image_devs = NULL;
927 bkpinfo->compression_level = 3;
928 bkpinfo->use_lzo = FALSE;
929 bkpinfo->use_gzip = FALSE;
930 bkpinfo->use_lzma = FALSE;
931 bkpinfo->verify_data = FALSE;
932 bkpinfo->backup_data = FALSE;
933 bkpinfo->restore_data = FALSE;
934 bkpinfo->use_star = FALSE;
935 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
936
937 /* We need tmpdir as early as possible for further function calls */
938 bkpinfo->tmpdir = NULL; // Really setup just after
939 bkpinfo->scratchdir = NULL; // Really setup just after
940 setup_tmpdir(NULL);
941 setup_scratchdir(NULL);
942
943 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
944 if (bkpinfo->disaster_recovery) {
945 mr_asprintf(bkpinfo->isodir, "%s", "/");
946 } else {
947 mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
948 }
949 mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
950 bkpinfo->optimal_set_size = 0L;
951 bkpinfo->backup_media_type = none;
952 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
953 bkpinfo->exclude_paths = NULL;
954 bkpinfo->include_paths = NULL;
955 bkpinfo->exclude_devs = NULL;
956 bkpinfo->restore_path = NULL;
957 bkpinfo->call_before_iso = NULL;
958 bkpinfo->call_make_iso = NULL;
959 bkpinfo->call_burn_iso = NULL;
960 bkpinfo->call_after_iso = NULL;
961 bkpinfo->kernel_path = NULL;
962 bkpinfo->netfs_mount = NULL;
963 bkpinfo->netfs_proto = NULL;
964 bkpinfo->netfs_user = NULL;
965 bkpinfo->netfs_remote_dir = NULL;
966 bkpinfo->postnuke_tarball = NULL;
967 bkpinfo->subdir = NULL;
968 bkpinfo->wipe_media_first = FALSE;
969 bkpinfo->differential = 0;
970 bkpinfo->please_dont_eject = FALSE;
971 bkpinfo->manual_cd_tray = FALSE;
972 bkpinfo->make_cd_use_lilo = FALSE;
973 bkpinfo->use_obdr = FALSE;
974 bkpinfo->restore_mode = interactive;
975 bkpinfo->boot_type = BIOS;
976}
977
978
979/**
980 * Get the remaining free space (in MB) on @p partition.
981 * @param partition The partition to check free space on (either a device or a mountpoint).
982 * @return The free space on @p partition, in MB.
983 */
984long free_space_on_given_partition(char *partition)
985{
986 char *out_sz = NULL;
987 char *command = NULL;
988 long res;
989
990 assert_string_is_neither_NULL_nor_zerolength(partition);
991
992 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
993 if (system(command)) {
994 mr_free(command);
995 return (-1);
996 } // partition does not exist
997 mr_free(command);
998
999 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
1000 out_sz = call_program_and_get_last_line_of_output(command);
1001 mr_free(command);
1002
1003 if (strlen(out_sz) == 0) {
1004 mr_free(out_sz);
1005 return (-1);
1006 } // error within df, probably
1007 res = atol(out_sz);
1008 mr_free(out_sz);
1009 return (res);
1010}
1011
1012/**
1013 * Retrieve the line containing @p label from the config file.
1014 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1015 * @param label What to read from the file.
1016 * @param value Where to put it.
1017 * @return 0 for success, 1 for failure.
1018 */
1019int read_cfg_var(char *config_file, char *label, char *value)
1020{
1021 /*@ buffer ****************************************************** */
1022 char *command = NULL;
1023 char *tmp = NULL;
1024
1025 /*@ end vars *************************************************** */
1026
1027 assert_string_is_neither_NULL_nor_zerolength(config_file);
1028 assert_string_is_neither_NULL_nor_zerolength(label);
1029 if (!does_file_exist(config_file)) {
1030 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1031 value[0] = '\0';
1032 return (1);
1033 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1034 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1035 return (0);
1036 } else {
1037 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1038 tmp = call_program_and_get_last_line_of_output(command);
1039 strcpy(value, tmp);
1040 mr_free(command);
1041
1042 log_msg(4, "Configuration item %s is %s", label, value);
1043 if (strlen(value) == 0) {
1044 return (1);
1045 } else {
1046 return (0);
1047 }
1048 }
1049}
1050
1051
1052
1053/**
1054 * Remount @c supermount if it was unmounted earlier.
1055 */
1056void remount_supermounts_if_necessary()
1057{
1058 if (g_remount_cdrom_at_end) {
1059 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1060 }
1061}
1062
1063/**
1064 * Unmount @c supermount if it's mounted.
1065 */
1066void unmount_supermounts_if_necessary()
1067{
1068 if (run_program_and_log_output
1069 ("mount | grep cdrom | grep super", FALSE) == 0) {
1070 g_remount_cdrom_at_end = TRUE;
1071 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1072 }
1073}
1074
1075/**
1076 * Whether we had to stop autofs (if so, restart it at end).
1077 */
1078bool g_autofs_stopped = FALSE;
1079
1080/**
1081 * Path to the autofs initscript ("" if none exists).
1082 */
1083char g_autofs_exe[MAX_STR_LEN];
1084
1085/**
1086 * Autofs initscript in Xandros Linux distribution.
1087 */
1088#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1089
1090/**
1091 * Autofs initscript in most Linux distributions.
1092 */
1093#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1094
1095/**
1096 * If autofs is mounted, stop it (restart at end).
1097 */
1098void stop_autofs_if_necessary()
1099{
1100 char *tmp = NULL;
1101
1102 g_autofs_exe[0] = '\0';
1103 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1104 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1105 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1106 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1107 }
1108
1109 if (!g_autofs_exe[0]) {
1110 log_msg(3, "No autofs detected.");
1111 } else {
1112 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1113 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1114 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1115 if (run_program_and_log_output(tmp, 2)) {
1116 log_it("Failed to stop autofs - I assume it wasn't running");
1117 } else {
1118 g_autofs_stopped = TRUE;
1119 log_it("Stopped autofs OK");
1120 }
1121 mr_free(tmp);
1122 }
1123}
1124
1125/**
1126 * If autofs was stopped earlier, restart it.
1127 */
1128void restart_autofs_if_necessary()
1129{
1130 char *tmp = NULL;
1131
1132 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1133 log_msg(3, "No autofs detected.");
1134 return;
1135 }
1136 mr_asprintf(tmp, "%s start", g_autofs_exe);
1137 if (run_program_and_log_output(tmp, 2)) {
1138 log_it("Failed to start autofs");
1139 } else {
1140 g_autofs_stopped = FALSE;
1141 log_it("Started autofs OK");
1142 }
1143 mr_free(tmp);
1144}
1145
1146
1147/**
1148 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1149 */
1150void mount_boot_if_necessary() {
1151 char *tmp = NULL;
1152 char *command = NULL;
1153
1154 log_msg(1, "Started sub");
1155 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1156 g_boot_mountpt[0] = '\0';
1157 log_msg(4, "Done. Great. Setting command to something");
1158 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1159 log_msg(4, "Cool. Command = '%s'", command);
1160 tmp = call_program_and_get_last_line_of_output(command);
1161 mr_free(command);
1162
1163 log_msg(4, "tmp = '%s'", tmp);
1164 log_it("/boot is at %s according to /etc/fstab", tmp);
1165 mr_asprintf(command, "mount | grep -Ew '/boot'");
1166 mr_free(tmp);
1167
1168 tmp = call_program_and_get_last_line_of_output(command);
1169 mr_free(command);
1170
1171 if (!strcmp(tmp,"")) {
1172 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1173 if (!run_program_and_log_output("mount /boot", 5)) {
1174 strcpy(g_boot_mountpt, "/boot");
1175 log_msg(1, "Mounted /boot");
1176 } else {
1177 log_it("...ignored cos it's a label or uuid :-)");
1178 }
1179 } else {
1180 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1181 log_msg(3, "command = %s", command);
1182 if (run_program_and_log_output(command, 5)) {
1183 strcpy(g_boot_mountpt, tmp);
1184 mr_free(tmp);
1185 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1186
1187 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1188 if (run_program_and_log_output(tmp, 5)) {
1189 g_boot_mountpt[0] = '\0';
1190 log_msg(1, "Plan B");
1191 if (!run_program_and_log_output("mount /boot", 5)) {
1192 strcpy(g_boot_mountpt, "/boot");
1193 log_msg(1, "Plan B worked");
1194 } else {
1195 log_msg(1,
1196 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1197 }
1198 }
1199 }
1200 mr_free(command);
1201 }
1202 }
1203 mr_free(tmp);
1204 log_msg(1, "Ended sub");
1205}
1206
1207
1208/**
1209 * If we mounted /boot earlier, unmount it.
1210 */
1211void unmount_boot_if_necessary()
1212{
1213 char *tmp = NULL;
1214
1215 log_msg(3, "starting");
1216 if (g_boot_mountpt[0]) {
1217 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1218 if (run_program_and_log_output(tmp, 5)) {
1219 log_it("WARNING - unable to unmount /boot");
1220 }
1221 mr_free(tmp);
1222 }
1223 log_msg(3, "leaving");
1224}
1225
1226
1227
1228/**
1229 * Write a line to a configuration file. Writes a line of the form,
1230 * @c label @c value.
1231 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1232 * @param label What to call this bit of data you're writing.
1233 * @param value The bit of data you're writing.
1234 * @return 0 for success, 1 for failure.
1235 */
1236int write_cfg_var(char *config_file, char *label, char *value)
1237{
1238 /*@ buffers ***************************************************** */
1239 char *command = NULL;
1240 char *tempfile = NULL;
1241
1242
1243 /*@ end vars *************************************************** */
1244 assert_string_is_neither_NULL_nor_zerolength(config_file);
1245 assert_string_is_neither_NULL_nor_zerolength(label);
1246 assert(value != NULL);
1247 if (!does_file_exist(config_file)) {
1248 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1249 return (1);
1250 }
1251 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1252 if (does_file_exist(config_file)) {
1253 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1254 paranoid_system(command);
1255 mr_free(command);
1256 }
1257 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1258 paranoid_system(command);
1259 mr_free(command);
1260
1261 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1262 paranoid_system(command);
1263 mr_free(command);
1264 unlink(tempfile);
1265 mr_free(tempfile);
1266 return (0);
1267}
1268
1269
1270/**
1271 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1272 * information to the logfile.
1273 */
1274void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1275
1276 va_list args;
1277 static int depth = 0;
1278 FILE *fout;
1279
1280 if (depth > 5) {
1281 depth--;
1282 return;
1283 }
1284 depth++;
1285
1286 if (debug_level <= g_loglevel) {
1287 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1288 return;
1289 }
1290
1291 // add tabs to distinguish log levels
1292 if (debug_level > 0) {
1293 fprintf(fout, "DBG%d: ", debug_level);
1294 if (getpid() == g_main_pid)
1295 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1296 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1297 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1298 else
1299 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1300 } else {
1301 fprintf(fout, "INFO: ");
1302 }
1303 va_start(args, fmt);
1304 vfprintf(fout, fmt, args);
1305 va_end(args);
1306
1307 fprintf(fout, "\n");
1308 paranoid_fclose(fout);
1309 }
1310 depth--;
1311}
1312
1313/**
1314 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1315 */
1316void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1317
1318
1319/**
1320 * Allocate or free important globals, depending on @p mal.
1321 * @param mal If TRUE, malloc; if FALSE, free.
1322 */
1323void do_libmondo_global_strings_thing(int mal)
1324{
1325 if (mal) {
1326 malloc_string(g_boot_mountpt);
1327 malloc_string(g_mondo_home);
1328 malloc_string(g_magicdev_command);
1329 } else {
1330 paranoid_free(g_boot_mountpt);
1331 paranoid_free(g_mondo_home);
1332 paranoid_free(g_magicdev_command);
1333 }
1334}
1335
1336/**
1337 * Allocate important globals.
1338 * @see do_libmondo_global_strings_thing
1339 */
1340void malloc_libmondo_global_strings(void)
1341{
1342 do_libmondo_global_strings_thing(1);
1343}
1344
1345/**
1346 * Free important globals.
1347 * @see do_libmondo_global_strings_thing
1348 */
1349void free_libmondo_global_strings(void)
1350{
1351 do_libmondo_global_strings_thing(0);
1352}
1353
1354
1355
1356/**
1357 * Stop @c magicdev if it's running.
1358 * The command used to start it is saved in @p g_magicdev_command.
1359 */
1360void stop_magicdev_if_necessary()
1361{
1362 char *tmp = NULL;
1363
1364 tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1365 strcpy(g_magicdev_command, tmp);
1366 if (g_magicdev_command[0]) {
1367 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1368 paranoid_system("killall magicdev");
1369 }
1370 mr_free(tmp);
1371}
1372
1373
1374/**
1375 * Restart magicdev if it was stopped.
1376 */
1377void restart_magicdev_if_necessary()
1378{
1379 char *tmp = NULL;
1380
1381 if (g_magicdev_command && g_magicdev_command[0]) {
1382 mr_asprintf(tmp, "%s &", g_magicdev_command);
1383 paranoid_system(tmp);
1384 mr_free(tmp);
1385 }
1386}
1387
1388/* @} - end of utilityGroup */
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