source: MondoRescue/branches/3.3/mondo/src/common/libmondo-tools.c@ 3880

Last change on this file since 3880 was 3880, checked in by Bruno Cornec, 4 months ago

Change semantic of -w option for mondoarchive by using it to indicate that we want to wipe media before writing
  • Property svn:keywords set to Id
File size: 40.4 KB
Line 
1/*
2 $Id: libmondo-tools.c 3880 2024-03-09 14:05:43Z 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 3880 2024-03-09 14:05:43Z 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#ifdef __IA64__
194 return ("ia64");
195#endif
196 return ("unknown");
197}
198
199
200char *get_uname_m(void) {
201
202 struct utsname utsn;
203 char *tmp = NULL;
204
205 uname(&utsn);
206 mr_asprintf(tmp, "%s", utsn.machine);
207 return (tmp);
208}
209
210
211
212double get_kernel_version(void)
213{
214 char *p = NULL;
215 char *tmp = NULL;
216 double d;
217#ifdef __FreeBSD__
218 // JOSH - FIXME :)
219 d = 5.2; // :-)
220#else
221 tmp = call_program_and_get_last_line_of_output("uname -r");
222 p = strchr(tmp, '.');
223 if (p) {
224 p = strchr(++p, '.');
225 if (p) {
226 while (*p) {
227 *p = *(p + 1);
228 p++;
229 }
230 }
231 }
232 d = atof(tmp);
233 mr_free(tmp);
234#endif
235 log_msg(1, "g_kernel_version = %f", d);
236
237 if (g_kernel_version < 2.6) {
238 fatal_error("Please use MondoRescue < 3.3.0 to support that old kernel or upgrade your distribution :-)");
239 }
240 return(d);
241}
242
243
244/**
245 * Get the current time.
246 * @return number of seconds since the epoch.
247 */
248long get_time()
249{
250 return (long) time((void *) 0);
251}
252
253
254/**
255 * Initialize a RAID volume structure, setting fields to zero. The
256 * actual hard drive is unaffected.
257 *
258 * @param raidrec The RAID volume structure to initialize.
259 * @note This function is system dependent.
260 */
261#ifdef __FreeBSD__
262void initialize_raidrec(struct vinum_volume *raidrec)
263{
264 int i, j;
265 raidrec->volname[0] = '\0';
266 raidrec->plexes = 0;
267 for (i = 0; i < 9; ++i) {
268 raidrec->plex[i].raidlevel = -1;
269 raidrec->plex[i].stripesize = 0;
270 raidrec->plex[i].subdisks = 0;
271 for (j = 0; j < 9; ++j) {
272 strcpy(raidrec->plex[i].sd[j].which_device, "");
273 }
274 }
275}
276#else
277void initialize_raidrec(struct raid_device_record *raidrec)
278{
279 assert(raidrec != NULL);
280 raidrec->raid_device[0] = '\0';
281 raidrec->raid_level = -9;
282 raidrec->persistent_superblock = 1;
283 raidrec->chunk_size = 64;
284 raidrec->parity = -1;
285 raidrec->data_disks.entries = 0;
286 raidrec->spare_disks.entries = 0;
287 raidrec->parity_disks.entries = 0;
288 raidrec->failed_disks.entries = 0;
289 raidrec->additional_vars.entries = 0;
290}
291#endif
292
293
294
295
296/**
297 * Insert modules that Mondo requires.
298 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
299 * @c msdosfs and @c ext2fs for FreeBSD.
300 */
301void insmod_crucial_modules(void)
302{
303#ifdef __FreeBSD__
304 paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
305 paranoid_system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
306#else
307 paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
308#endif
309}
310
311/* compute the final options for bootable media, considering the command and the boot type */
312char *mr_compute_uefi_string(char *isofs_cmd) {
313
314 char *uefistr = NULL;
315 char *mondo_mkisofs_sz = NULL;
316
317 /* real media */
318 if (strstr(isofs_cmd,"growisofs")) {
319 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
320 } else {
321 /* iso image */
322 if (bkpinfo->boot_type == UEFI) {
323 if (strstr(isofs_cmd,"xorriso")) {
324 /* xorriso needs another '-' before efi-boot */
325 mr_asprintf(uefistr, "%s -%s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
326 } else {
327 mr_asprintf(uefistr, "%s %s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
328 }
329 } else {
330 mr_asprintf(uefistr, "%s",MONDO_MKISOFS_CMS);
331 }
332 mr_asprintf(mondo_mkisofs_sz, "%s%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX, uefistr);
333 }
334
335 return(mondo_mkisofs_sz);
336}
337
338/**
339 * Finish configuring the backup information structure. Call this function
340 * to set the parameters that depend on those that can be given on the command
341 * line.
342 *
343 * @param bkpinfo The backup information structure. Fields modified/used:
344 * - Used: @c bkpinfo->backup_data
345 * - Used: @c bkpinfo->backup_media_type
346 * - Used: @c bkpinfo->cdrw_speed
347 * - Used: @c bkpinfo->compression_level
348 * - Used: @c bkpinfo->include_paths
349 * - Used: @c bkpinfo->prefix
350 * - Used: @c bkpinfo->isodir
351 * - Used: @c bkpinfo->manual_cd_tray
352 * - Used: @c bkpinfo->make_cd_use_lilo
353 * - Used: @c bkpinfo->media_device
354 * - Used: @c bkpinfo->netfs_mount
355 * - Used: @c bkpinfo->nonbootable_backup
356 * - Used: @c bkpinfo->scratchdir
357 * - Used: @c bkpinfo->tmpdir
358 * - Used: @c bkpinfo->use_lzo
359 * - Modified: @c bkpinfo->call_before_iso
360 * - Modified: @c bkpinfo->call_make_iso
361 * - Modified: @c bkpinfo->optimal_set_size
362 * - Modified: @c bkpinfo->zip_exe
363 * - Modified: @c bkpinfo->zip_suffix
364 *
365 * @return number of errors, or 0 for success.
366 * @note Also creates directories that are specified in the @c bkpinfo structure but
367 * do not exist.
368 */
369int post_param_configuration()
370{
371 char *extra_cdrom_params = NULL;
372 char *mondo_mkisofs_sz = NULL;
373 char *command = NULL;
374 char *isofs_cmd = NULL;
375 int retval = 0;
376 char *cdr_exe = NULL;
377 char *tmp = NULL;
378 char *call_before_iso_user = NULL;
379 char *iso_dev = NULL;
380 char *iso_mnt = NULL;
381 char *iso_tmp = NULL;
382 char *iso_dir = NULL;
383
384 assert(bkpinfo != NULL);
385
386 bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024L;
387
388 log_msg(1, "Post-param");
389 if (bkpinfo->backup_media_type == tape) {
390 if (whine_if_not_found("mt") == 1) {
391 fatal_error("Please install the mt command");
392 }
393 log_msg(1, "Tape");
394 if (bkpinfo->media_device == NULL) {
395 return(1);
396 }
397 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
398 log_msg(1, "tmp = '%s'", tmp);
399 if (run_program_and_log_output(tmp, 3)) {
400 mr_free(tmp);
401 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.");
402 }
403 mr_free(tmp);
404 }
405 if (bkpinfo->backup_media_type == iso)
406 make_hole_for_dir(bkpinfo->isodir);
407
408 run_program_and_log_output("uname -a", 5);
409 run_program_and_log_output("cat /etc/*-release", 5);
410 run_program_and_log_output("cat /etc/*issue*", 5);
411#ifdef __FreeBSD__
412#else
413 run_program_and_log_output("cat /proc/cpuinfo", 5);
414 /*
415 run_program_and_log_output("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
416 */
417#endif
418
419 if (bkpinfo->use_lzo) {
420 mr_asprintf(bkpinfo->zip_exe, "%s", "lzop");
421 mr_asprintf(bkpinfo->zip_suffix, "%s", "lzo");
422 } else if (bkpinfo->use_gzip) {
423 mr_asprintf(bkpinfo->zip_exe, "%s", "gzip");
424 mr_asprintf(bkpinfo->zip_suffix, "%s", "gz");
425 } else if (bkpinfo->use_lzma) {
426 mr_asprintf(bkpinfo->zip_exe, "%s", "xz");
427 mr_asprintf(bkpinfo->zip_suffix, "%s", "xz");
428 } else if (bkpinfo->compression_level != 0) {
429 mr_asprintf(bkpinfo->zip_exe, "%s", "bzip2");
430 mr_asprintf(bkpinfo->zip_suffix, "%s", "bz2");
431 } else {
432 mr_free(bkpinfo->zip_exe);
433 mr_free(bkpinfo->zip_suffix);
434 }
435
436// DVD
437
438 if (bkpinfo->backup_media_type == dvd) {
439 if ((cdr_exe = find_home_of_exe("growisofs")) == NULL) {
440 fatal_error("Please install growisofs.");
441 }
442 if (bkpinfo->nonbootable_backup) {
443 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
444 } else if
445#ifdef __FreeBSD__
446 (TRUE)
447#else
448 (bkpinfo->make_cd_use_lilo)
449#endif
450#ifdef __IA64__
451 {
452 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
453 }
454#else
455 {
456 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
457 }
458#endif
459 else {
460 mondo_mkisofs_sz = mr_compute_uefi_string(cdr_exe);
461 }
462 mr_free(cdr_exe);
463
464 if (bkpinfo->manual_cd_tray) {
465 fatal_error("Manual CD tray + DVD not supported yet.");
466 // -m isn't supported by growisofs, BTW...
467 } else {
468 mr_asprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
469 }
470 mr_free(mondo_mkisofs_sz);
471 if (getenv ("SUDO_COMMAND")) {
472 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
473 tmp = call_program_and_get_last_line_of_output(command);
474 mr_free(command);
475 if (!strcmp(tmp, "1")) {
476 mr_free(tmp);
477 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
478 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
479 }
480 mr_free(tmp);
481 }
482 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
483 } // end of DVD code
484
485// CD-R or CD-RW
486 if (bkpinfo->backup_media_type == cdr) {
487 if (!bkpinfo->manual_cd_tray) {
488 mr_asprintf(extra_cdrom_params, "-waiti ");
489 }
490 if (bkpinfo->wipe_media_first) {
491 mr_asprintf(extra_cdrom_params, "%s", "blank=fast ");
492 }
493 if ((cdr_exe = find_home_of_exe("cdrecord")) == NULL) {
494 if ((cdr_exe = find_home_of_exe("wodim")) == NULL) {
495 if ((cdr_exe = find_home_of_exe("dvdrecord")) == NULL) {
496 fatal_error("Please install either cdrecord, wodim or dvdrecord.");
497 }
498 }
499 }
500 if ((tmp = find_home_of_exe("xorriso")) != NULL) {
501 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_XORRISO_OPT);
502 } else if ((tmp = find_home_of_exe("genisoimage")) != NULL) {
503 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_GENISOIMAGE_OPT);
504 } else if ((tmp = find_home_of_exe("mkisofs")) != NULL) {
505 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_MKISOFS_OPT);
506 } else if ((tmp = find_home_of_exe("wodim")) != NULL) {
507 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_WODIM_OPT);
508 } else {
509 fatal_error("Unable to find a command to create ISO among xorriso, genisoimage, mksiofs or wodim, please install one");
510 }
511 mr_free(tmp);
512
513 if (bkpinfo->nonbootable_backup) {
514 mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
515 } else if
516#ifdef __FreeBSD__
517 (TRUE)
518#else
519 (bkpinfo->make_cd_use_lilo)
520#endif
521#ifdef __IA64__
522 {
523 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
524 }
525#else
526 {
527 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
528 }
529#endif
530 else {
531 mondo_mkisofs_sz = mr_compute_uefi_string(isofs_cmd);
532 }
533 mr_free(isofs_cmd);
534
535 if (bkpinfo->manual_cd_tray) {
536 if (bkpinfo->call_before_iso == NULL) {
537 mr_asprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
538 } else {
539 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
540 mr_free(bkpinfo->call_before_iso);
541 mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
542 mr_free(call_before_iso_user);
543 }
544 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
545 mr_asprintf(bkpinfo->call_make_iso, "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed, bkpinfo->tmpdir);
546 } else {
547 mr_asprintf(bkpinfo->call_make_iso, "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -", mondo_mkisofs_sz, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed);
548 }
549 mr_free(cdr_exe);
550 mr_free(mondo_mkisofs_sz);
551 mr_free(extra_cdrom_params);
552 } // end of CD code
553
554 if (bkpinfo->backup_media_type == iso) {
555
556/* Break up isodir into iso_mnt and iso_dir
557 * These will be used along with iso-dev at restore time
558 * to locate the ISOs where ever they're mounted
559 */
560
561 log_it("isodir = %s", bkpinfo->isodir);
562 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
563 log_it("command = %s", command);
564 iso_dev = call_program_and_get_last_line_of_output(command);
565 log_it("res of it = %s", iso_dev);
566 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
567 write_one_liner_data_file(tmp, iso_dev);
568 mr_free(tmp);
569 mr_free(command);
570
571 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
572 mr_free(iso_dev);
573
574 log_it("command = %s", command);
575 iso_mnt = call_program_and_get_last_line_of_output(command);
576 log_it("res of it = %s", iso_mnt);
577 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
578 write_one_liner_data_file(tmp, iso_mnt);
579 mr_free(tmp);
580 mr_free(command);
581
582 log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
583 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
584 if (strlen(iso_tmp) < strlen(iso_mnt)) {
585 mr_asprintf(iso_dir, "%s", "");
586 } else {
587 // If iso_mnt is only / then iso_dir is the full dir
588 // (the formula bellow doesn't work in this case)
589 if (strcmp(iso_mnt, "/") == 0) {
590 mr_asprintf(iso_dir, "%s", iso_tmp);
591 // else it's a part of iso_tmp
592 } else {
593 mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
594 }
595 }
596 mr_free(iso_mnt);
597 mr_free(iso_tmp);
598
599 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
600 write_one_liner_data_file(tmp, iso_dir);
601 mr_free(tmp);
602
603 log_it("iso-dir: %s", iso_dir);
604 mr_free(iso_dir);
605
606 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
607 write_one_liner_data_file(tmp, bkpinfo->prefix);
608 mr_free(tmp);
609
610 log_it("iso-prefix: %s", bkpinfo->prefix);
611
612/* End patch */
613 } // end of iso code
614
615 if (bkpinfo->backup_media_type == netfs) {
616 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
617 write_one_liner_data_file(tmp, bkpinfo->prefix);
618 mr_free(tmp);
619
620 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
621 write_one_liner_data_file(tmp, bkpinfo->isodir);
622 mr_free(tmp);
623
624 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
625 write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
626 mr_free(tmp);
627
628 if (bkpinfo->netfs_mount) {
629 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
630 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
631 mr_free(tmp);
632 } else {
633 log_it("netfs_mount is NULL");
634 retval++;
635 }
636 }
637
638 log_it("Finished processing incoming params");
639 if (retval) {
640 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
641 }
642 if (bkpinfo->include_paths == NULL) {
643 mr_asprintf(bkpinfo->include_paths, "/");
644 }
645 g_backup_media_type = bkpinfo->backup_media_type;
646 return (retval);
647}
648
649
650
651/**
652 * Check the user's system for sanity. Checks performed:
653 * - make sure user has enough RAM (32mb required, 64mb recommended)
654 * - make sure user has enough free space in @c /
655 * - check kernel for ramdisk support
656 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
657 * - make sure CD-ROM is unmounted
658 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
659 *
660 * @return number of problems with the user's setup (0 for success)
661 */
662int some_basic_system_sanity_checks()
663{
664
665 /*@ buffers ************ */
666 char *tmp = NULL;
667
668 /*@ int's *************** */
669 int retval = 0;
670
671 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
672#ifndef __FreeBSD__
673 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
674 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
675 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
676 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
677 }
678 tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
679 if (atol(tmp) < 35000) {
680 retval++;
681 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
682 }
683 if (atol(tmp) < 66000) {
684 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
685 }
686 mr_free(tmp);
687#endif
688
689 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
690 retval++;
691 log_to_screen("Unable to find " MKE2FS_OR_NEWFS " in system path.");
692 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. :)");
693 }
694#ifndef __FreeBSD__
695 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
696 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
697 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
698 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
699 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?")) {
700 // retval++;
701 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
702 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
703 }
704 }
705 }
706#endif
707 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
708 if (system("which xorriso > /dev/null 2> /dev/null")) {
709 if (system("which genisoimage > /dev/null 2> /dev/null")) {
710 retval += whine_if_not_found("mkisofs");
711 }
712 }
713 if (system("which wodim > /dev/null 2> /dev/null")) {
714 retval += whine_if_not_found("cdrecord");
715 }
716 retval += whine_if_not_found("bzip2");
717 retval += whine_if_not_found("gzip");
718 retval += whine_if_not_found("cmp");
719 retval += whine_if_not_found("awk");
720 retval += whine_if_not_found("md5sum");
721 retval += whine_if_not_found("strings");
722 retval += whine_if_not_found("mindi");
723 retval += whine_if_not_found("buffer");
724
725 // abort if Windows partition but no ms-sys and parted
726 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
727 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -Ew efi", 0)) {
728 log_to_screen("I think you have a EFI/UEFI partition.");
729 } else {
730 log_to_screen("I think you have a Windows 9x partition.");
731 }
732 retval += whine_if_not_found("parted");
733 }
734
735 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
736 tmp = call_program_and_get_last_line_of_output("mount | grep -E 'cdr(om|w)'");
737 if (strcmp("", tmp)) {
738 if (strstr(tmp, "autofs")) {
739 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
740 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
741 log_to_screen("eject it. Thank you.");
742 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
743 } else
744 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
745 retval++;
746 mr_free(tmp);
747 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
748 }
749 }
750 mr_free(tmp);
751
752 run_program_and_log_output("cat /etc/fstab", 5);
753#ifdef __FreeBSD__
754 run_program_and_log_output("vinum printconfig", 5);
755#else
756 run_program_and_log_output("cat /etc/raidtab", 5);
757#endif
758
759 if (run_program_and_log_output("mindi -V", 1)) {
760 log_to_screen("Could not ascertain mindi's version number.");
761 log_to_screen("You have not installed Mondo and/or Mindi properly.");
762 log_to_screen("Please uninstall and reinstall them both.");
763 fatal_error("Please reinstall Mondo and Mindi.");
764 }
765 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
766 if (run_program_and_log_output(tmp, 5)) {
767 log_to_screen("%s failed for some reason.", tmp);
768 mr_free(tmp);
769 log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
770 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
771 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
772 retval++;
773 }
774 mr_free(tmp);
775
776 if (!run_program_and_log_output("mr-parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
777 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
778 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
779 }
780
781 if (retval) {
782 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
783 } else {
784 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
785 }
786 return (retval);
787}
788
789
790
791/**
792 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
793 * Seeds the random-number generator, loads important modules, checks the sanity
794 * of the user's Linux distribution, and deletes logfile.
795 * @param bkpinfo The backup information structure. Will be initialized.
796 * @return number of errors (0 for success)
797 */
798int pre_param_configuration()
799{
800 int res = 0;
801 char *tmp = NULL;
802
803 make_hole_for_dir(MNT_CDROM);
804 assert(bkpinfo != NULL);
805 srandom((unsigned long) (time(NULL)));
806 insmod_crucial_modules();
807 if (bkpinfo->disaster_recovery) {
808 if (!does_nonMS_partition_exist()) {
809 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
810 }
811 }
812
813 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
814 run_program_and_log_output(tmp, FALSE);
815 paranoid_free(tmp);
816 if (find_and_store_mondoarchives_home(g_mondo_home)) {
817 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");
818 res++;
819 return (res);
820 }
821 res += some_basic_system_sanity_checks();
822 if (res) {
823 log_it("Your distribution did not pass Mondo's sanity test.");
824 }
825 g_current_media_number = 1;
826 return (res);
827}
828
829/* From busybox under GPLv2 */
830#ifndef HAVE_MKDTEMP
831/* This is now actually part of POSIX.1, but was only added in 2008 */
832char* mkdtemp(char *template)
833{
834 if (mkstemp(template) == -1) {
835 return NULL;
836 }
837 unlink(template);
838 if (mkdir(template, 0700) != 0) {
839 return NULL;
840 }
841 return template;
842}
843#endif
844
845void setup_tmpdir(char *path) {
846
847 char *tmp = NULL;
848
849 if (bkpinfo->tmpdir != NULL) {
850 /* purging a potential old tmpdir */
851 if (chdir("/tmp")) {
852 // FIXME
853 }
854 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
855 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
856 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
857 } else {
858 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
859 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
860 }
861 paranoid_system(tmp);
862 mr_free(tmp);
863 }
864
865 /* Always take in account arg first, then env, then default */
866 if (path != NULL) {
867 mr_system("mkdir -p %s",path);
868 log_it("Created temporary directory %s", path);
869 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
870 } else if (getenv("TMPDIR")) {
871 mr_system("mkdir -p %s",getenv("TMPDIR"));
872 log_it("Created temporary directory %s", getenv("TMPDIR"));
873 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
874 } else if (getenv("MRTMP")) {
875 mr_system("mkdir -p %s",getenv("MRTMP"));
876 log_it("Created temporary directory %s", getenv("MRTMP"));
877 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
878 } else {
879 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
880 }
881 mr_free(bkpinfo->tmpdir);
882 bkpinfo->tmpdir = mkdtemp(tmp);
883 if (bkpinfo->tmpdir == NULL) {
884 printf("Failed to create global tmp directory %s for Mondo.",tmp);
885 mr_free(tmp);
886 finish(-1);
887 }
888 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
889 mr_system("mkdir -p %s/tmpfs", bkpinfo->tmpdir);
890}
891
892void setup_scratchdir(char *path) {
893
894 char *tmp = NULL;
895
896 if (bkpinfo->scratchdir != NULL) {
897 /* purging a potential old scratchdir */
898 if (chdir("/tmp")) {
899 // FIXME
900 }
901 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
902 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
903 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
904 } else {
905 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
906 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
907 }
908 paranoid_system(tmp);
909 mr_free(tmp);
910 }
911
912 /* Always take in account arg first, then env, then default */
913 if (path != NULL) {
914 mr_system("mkdir -p %s",path);
915 log_it("Created scratch directory %s", path);
916 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
917 } else if (getenv("MRSCRATCH")) {
918 mr_system("mkdir -p %s",getenv("MRSCRATCH"));
919 log_it("Created scratch directory %s", getenv("MRSCRATCH"));
920 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
921 } else {
922 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
923 }
924 mr_free(bkpinfo->scratchdir);
925 bkpinfo->scratchdir = mkdtemp(tmp);
926 if (bkpinfo->scratchdir == NULL) {
927 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
928 mr_free(tmp);
929 finish(-1);
930 }
931 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
932 mr_system("mkdir -p %s", bkpinfo->scratchdir);
933}
934
935
936/**
937 * Reset all fields of the backup information structure to a sensible default.
938 * @param bkpinfo The @c bkpinfo to reset.
939 */
940void reset_bkpinfo()
941{
942 assert(bkpinfo != NULL);
943 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
944
945 bkpinfo->media_device = NULL;
946 bkpinfo->media_size = -1;
947 bkpinfo->boot_loader = '\0';
948 bkpinfo->boot_device = NULL;
949 bkpinfo->zip_exe = NULL;
950 bkpinfo->zip_suffix = NULL;
951 bkpinfo->image_devs = NULL;
952 bkpinfo->compression_level = 3;
953 bkpinfo->use_lzo = FALSE;
954 bkpinfo->use_gzip = FALSE;
955 bkpinfo->use_lzma = FALSE;
956 bkpinfo->verify_data = FALSE;
957 bkpinfo->backup_data = FALSE;
958 bkpinfo->restore_data = FALSE;
959 bkpinfo->use_star = FALSE;
960 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
961
962 /* We need tmpdir as early as possible for further function calls */
963 bkpinfo->tmpdir = NULL; // Really setup just after
964 bkpinfo->scratchdir = NULL; // Really setup just after
965 setup_tmpdir(NULL);
966 setup_scratchdir(NULL);
967
968 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
969 if (bkpinfo->disaster_recovery) {
970 mr_asprintf(bkpinfo->isodir, "%s", "/");
971 } else {
972 mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
973 }
974 mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
975 bkpinfo->optimal_set_size = 0L;
976 bkpinfo->backup_media_type = none;
977 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
978 bkpinfo->exclude_paths = NULL;
979 bkpinfo->include_paths = NULL;
980 bkpinfo->exclude_devs = NULL;
981 bkpinfo->restore_path = NULL;
982 bkpinfo->call_before_iso = NULL;
983 bkpinfo->call_make_iso = NULL;
984 bkpinfo->call_burn_iso = NULL;
985 bkpinfo->call_after_iso = NULL;
986 bkpinfo->kernel_path = NULL;
987 bkpinfo->netfs_mount = NULL;
988 bkpinfo->netfs_proto = NULL;
989 bkpinfo->netfs_user = NULL;
990 bkpinfo->netfs_remote_dir = NULL;
991 bkpinfo->postnuke_tarball = NULL;
992 bkpinfo->subdir = NULL;
993 bkpinfo->wipe_media_first = FALSE;
994 bkpinfo->differential = 0;
995 bkpinfo->please_dont_eject = FALSE;
996 bkpinfo->cdrw_speed = 0;
997 bkpinfo->manual_cd_tray = FALSE;
998 bkpinfo->nonbootable_backup = FALSE;
999 bkpinfo->make_cd_use_lilo = FALSE;
1000 bkpinfo->use_obdr = FALSE;
1001 bkpinfo->restore_mode = interactive;
1002 bkpinfo->boot_type = BIOS;
1003}
1004
1005
1006/**
1007 * Get the remaining free space (in MB) on @p partition.
1008 * @param partition The partition to check free space on (either a device or a mountpoint).
1009 * @return The free space on @p partition, in MB.
1010 */
1011long free_space_on_given_partition(char *partition)
1012{
1013 char *out_sz = NULL;
1014 char *command = NULL;
1015 long res;
1016
1017 assert_string_is_neither_NULL_nor_zerolength(partition);
1018
1019 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
1020 if (system(command)) {
1021 mr_free(command);
1022 return (-1);
1023 } // partition does not exist
1024 mr_free(command);
1025
1026 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
1027 out_sz = call_program_and_get_last_line_of_output(command);
1028 mr_free(command);
1029
1030 if (strlen(out_sz) == 0) {
1031 mr_free(out_sz);
1032 return (-1);
1033 } // error within df, probably
1034 res = atol(out_sz);
1035 mr_free(out_sz);
1036 return (res);
1037}
1038
1039/**
1040 * Retrieve the line containing @p label from the config file.
1041 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1042 * @param label What to read from the file.
1043 * @param value Where to put it.
1044 * @return 0 for success, 1 for failure.
1045 */
1046int read_cfg_var(char *config_file, char *label, char *value)
1047{
1048 /*@ buffer ****************************************************** */
1049 char *command = NULL;
1050 char *tmp = NULL;
1051
1052 /*@ end vars *************************************************** */
1053
1054 assert_string_is_neither_NULL_nor_zerolength(config_file);
1055 assert_string_is_neither_NULL_nor_zerolength(label);
1056 if (!does_file_exist(config_file)) {
1057 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1058 value[0] = '\0';
1059 return (1);
1060 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1061 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1062 return (0);
1063 } else {
1064 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1065 tmp = call_program_and_get_last_line_of_output(command);
1066 strcpy(value, tmp);
1067 mr_free(command);
1068
1069 log_msg(4, "Configuration item %s is %s", label, value);
1070 if (strlen(value) == 0) {
1071 return (1);
1072 } else {
1073 return (0);
1074 }
1075 }
1076}
1077
1078
1079
1080/**
1081 * Remount @c supermount if it was unmounted earlier.
1082 */
1083void remount_supermounts_if_necessary()
1084{
1085 if (g_remount_cdrom_at_end) {
1086 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1087 }
1088}
1089
1090/**
1091 * Unmount @c supermount if it's mounted.
1092 */
1093void unmount_supermounts_if_necessary()
1094{
1095 if (run_program_and_log_output
1096 ("mount | grep cdrom | grep super", FALSE) == 0) {
1097 g_remount_cdrom_at_end = TRUE;
1098 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1099 }
1100}
1101
1102/**
1103 * Whether we had to stop autofs (if so, restart it at end).
1104 */
1105bool g_autofs_stopped = FALSE;
1106
1107/**
1108 * Path to the autofs initscript ("" if none exists).
1109 */
1110char g_autofs_exe[MAX_STR_LEN];
1111
1112/**
1113 * Autofs initscript in Xandros Linux distribution.
1114 */
1115#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1116
1117/**
1118 * Autofs initscript in most Linux distributions.
1119 */
1120#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1121
1122/**
1123 * If autofs is mounted, stop it (restart at end).
1124 */
1125void stop_autofs_if_necessary()
1126{
1127 char *tmp = NULL;
1128
1129 g_autofs_exe[0] = '\0';
1130 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1131 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1132 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1133 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1134 }
1135
1136 if (!g_autofs_exe[0]) {
1137 log_msg(3, "No autofs detected.");
1138 } else {
1139 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1140 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1141 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1142 if (run_program_and_log_output(tmp, 2)) {
1143 log_it("Failed to stop autofs - I assume it wasn't running");
1144 } else {
1145 g_autofs_stopped = TRUE;
1146 log_it("Stopped autofs OK");
1147 }
1148 mr_free(tmp);
1149 }
1150}
1151
1152/**
1153 * If autofs was stopped earlier, restart it.
1154 */
1155void restart_autofs_if_necessary()
1156{
1157 char *tmp = NULL;
1158
1159 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1160 log_msg(3, "No autofs detected.");
1161 return;
1162 }
1163 mr_asprintf(tmp, "%s start", g_autofs_exe);
1164 if (run_program_and_log_output(tmp, 2)) {
1165 log_it("Failed to start autofs");
1166 } else {
1167 g_autofs_stopped = FALSE;
1168 log_it("Started autofs OK");
1169 }
1170 mr_free(tmp);
1171}
1172
1173
1174/**
1175 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1176 */
1177void mount_boot_if_necessary() {
1178 char *tmp = NULL;
1179 char *command = NULL;
1180
1181 log_msg(1, "Started sub");
1182 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1183 g_boot_mountpt[0] = '\0';
1184 log_msg(4, "Done. Great. Setting command to something");
1185 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1186 log_msg(4, "Cool. Command = '%s'", command);
1187 tmp = call_program_and_get_last_line_of_output(command);
1188 mr_free(command);
1189
1190 log_msg(4, "tmp = '%s'", tmp);
1191 log_it("/boot is at %s according to /etc/fstab", tmp);
1192 mr_asprintf(command, "mount | grep -Ew '/boot'");
1193 mr_free(tmp);
1194
1195 tmp = call_program_and_get_last_line_of_output(command);
1196 mr_free(command);
1197
1198 if (!strcmp(tmp,"")) {
1199 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1200 if (!run_program_and_log_output("mount /boot", 5)) {
1201 strcpy(g_boot_mountpt, "/boot");
1202 log_msg(1, "Mounted /boot");
1203 } else {
1204 log_it("...ignored cos it's a label or uuid :-)");
1205 }
1206 } else {
1207 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1208 log_msg(3, "command = %s", command);
1209 if (run_program_and_log_output(command, 5)) {
1210 strcpy(g_boot_mountpt, tmp);
1211 mr_free(tmp);
1212 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1213
1214 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1215 if (run_program_and_log_output(tmp, 5)) {
1216 g_boot_mountpt[0] = '\0';
1217 log_msg(1, "Plan B");
1218 if (!run_program_and_log_output("mount /boot", 5)) {
1219 strcpy(g_boot_mountpt, "/boot");
1220 log_msg(1, "Plan B worked");
1221 } else {
1222 log_msg(1,
1223 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1224 }
1225 }
1226 }
1227 mr_free(command);
1228 }
1229 }
1230 mr_free(tmp);
1231 log_msg(1, "Ended sub");
1232}
1233
1234
1235/**
1236 * If we mounted /boot earlier, unmount it.
1237 */
1238void unmount_boot_if_necessary()
1239{
1240 char *tmp = NULL;
1241
1242 log_msg(3, "starting");
1243 if (g_boot_mountpt[0]) {
1244 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1245 if (run_program_and_log_output(tmp, 5)) {
1246 log_it("WARNING - unable to unmount /boot");
1247 }
1248 mr_free(tmp);
1249 }
1250 log_msg(3, "leaving");
1251}
1252
1253
1254
1255/**
1256 * Write a line to a configuration file. Writes a line of the form,
1257 * @c label @c value.
1258 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1259 * @param label What to call this bit of data you're writing.
1260 * @param value The bit of data you're writing.
1261 * @return 0 for success, 1 for failure.
1262 */
1263int write_cfg_var(char *config_file, char *label, char *value)
1264{
1265 /*@ buffers ***************************************************** */
1266 char *command = NULL;
1267 char *tempfile = NULL;
1268
1269
1270 /*@ end vars *************************************************** */
1271 assert_string_is_neither_NULL_nor_zerolength(config_file);
1272 assert_string_is_neither_NULL_nor_zerolength(label);
1273 assert(value != NULL);
1274 if (!does_file_exist(config_file)) {
1275 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1276 return (1);
1277 }
1278 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1279 if (does_file_exist(config_file)) {
1280 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1281 paranoid_system(command);
1282 mr_free(command);
1283 }
1284 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1285 paranoid_system(command);
1286 mr_free(command);
1287
1288 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1289 paranoid_system(command);
1290 mr_free(command);
1291 unlink(tempfile);
1292 mr_free(tempfile);
1293 return (0);
1294}
1295
1296
1297/**
1298 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1299 * information to the logfile.
1300 */
1301void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1302
1303 va_list args;
1304 static int depth = 0;
1305 FILE *fout;
1306
1307 if (depth > 5) {
1308 depth--;
1309 return;
1310 }
1311 depth++;
1312
1313 if (debug_level <= g_loglevel) {
1314 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1315 return;
1316 }
1317
1318 // add tabs to distinguish log levels
1319 if (debug_level > 0) {
1320 fprintf(fout, "DBG%d: ", debug_level);
1321 if (getpid() == g_main_pid)
1322 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1323 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1324 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1325 else
1326 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1327 } else {
1328 fprintf(fout, "INFO: ");
1329 }
1330 va_start(args, fmt);
1331 vfprintf(fout, fmt, args);
1332 va_end(args);
1333
1334 fprintf(fout, "\n");
1335 paranoid_fclose(fout);
1336 }
1337 depth--;
1338}
1339
1340/**
1341 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1342 */
1343void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1344
1345
1346/**
1347 * Allocate or free important globals, depending on @p mal.
1348 * @param mal If TRUE, malloc; if FALSE, free.
1349 */
1350void do_libmondo_global_strings_thing(int mal)
1351{
1352 if (mal) {
1353 malloc_string(g_boot_mountpt);
1354 malloc_string(g_mondo_home);
1355 malloc_string(g_magicdev_command);
1356 } else {
1357 paranoid_free(g_boot_mountpt);
1358 paranoid_free(g_mondo_home);
1359 paranoid_free(g_magicdev_command);
1360 }
1361}
1362
1363/**
1364 * Allocate important globals.
1365 * @see do_libmondo_global_strings_thing
1366 */
1367void malloc_libmondo_global_strings(void)
1368{
1369 do_libmondo_global_strings_thing(1);
1370}
1371
1372/**
1373 * Free important globals.
1374 * @see do_libmondo_global_strings_thing
1375 */
1376void free_libmondo_global_strings(void)
1377{
1378 do_libmondo_global_strings_thing(0);
1379}
1380
1381
1382
1383/**
1384 * Stop @c magicdev if it's running.
1385 * The command used to start it is saved in @p g_magicdev_command.
1386 */
1387void stop_magicdev_if_necessary()
1388{
1389 char *tmp = NULL;
1390
1391 tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1392 strcpy(g_magicdev_command, tmp);
1393 if (g_magicdev_command[0]) {
1394 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1395 paranoid_system("killall magicdev");
1396 }
1397 mr_free(tmp);
1398}
1399
1400
1401/**
1402 * Restart magicdev if it was stopped.
1403 */
1404void restart_magicdev_if_necessary()
1405{
1406 char *tmp = NULL;
1407
1408 if (g_magicdev_command && g_magicdev_command[0]) {
1409 mr_asprintf(tmp, "%s &", g_magicdev_command);
1410 paranoid_system(tmp);
1411 mr_free(tmp);
1412 }
1413}
1414
1415/* @} - end of utilityGroup */
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