source: MondoRescue/branches/3.3/mondo/src/common/libmondo-tools.c@ 3883

Last change on this file since 3883 was 3883, checked in by Bruno Cornec, 5 months ago

Remove the possibility to have non bootable media

  • Property svn:keywords set to Id
File size: 39.9 KB
Line 
1/*
2 $Id: libmondo-tools.c 3883 2024-03-09 23:58:41Z 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 3883 2024-03-09 23:58:41Z 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->compression_level
347 * - Used: @c bkpinfo->include_paths
348 * - Used: @c bkpinfo->prefix
349 * - Used: @c bkpinfo->isodir
350 * - Used: @c bkpinfo->manual_cd_tray
351 * - Used: @c bkpinfo->make_cd_use_lilo
352 * - Used: @c bkpinfo->media_device
353 * - Used: @c bkpinfo->netfs_mount
354 * - Used: @c bkpinfo->scratchdir
355 * - Used: @c bkpinfo->tmpdir
356 * - Used: @c bkpinfo->use_lzo
357 * - Modified: @c bkpinfo->call_before_iso
358 * - Modified: @c bkpinfo->call_make_iso
359 * - Modified: @c bkpinfo->optimal_set_size
360 * - Modified: @c bkpinfo->zip_exe
361 * - Modified: @c bkpinfo->zip_suffix
362 *
363 * @return number of errors, or 0 for success.
364 * @note Also creates directories that are specified in the @c bkpinfo structure but
365 * do not exist.
366 */
367int post_param_configuration()
368{
369 char *extra_cdrom_params = NULL;
370 char *mondo_mkisofs_sz = NULL;
371 char *command = NULL;
372 char *isofs_cmd = NULL;
373 int retval = 0;
374 char *cdr_exe = NULL;
375 char *tmp = NULL;
376 char *call_before_iso_user = NULL;
377 char *iso_dev = NULL;
378 char *iso_mnt = NULL;
379 char *iso_tmp = NULL;
380 char *iso_dir = NULL;
381
382 assert(bkpinfo != NULL);
383
384 bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024L;
385
386 log_msg(1, "Post-param");
387 if (bkpinfo->backup_media_type == tape) {
388 if (whine_if_not_found("mt") == 1) {
389 fatal_error("Please install the mt command");
390 }
391 log_msg(1, "Tape");
392 if (bkpinfo->media_device == NULL) {
393 return(1);
394 }
395 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
396 log_msg(1, "tmp = '%s'", tmp);
397 if (run_program_and_log_output(tmp, 3)) {
398 mr_free(tmp);
399 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.");
400 }
401 mr_free(tmp);
402 }
403 if (bkpinfo->backup_media_type == iso)
404 make_hole_for_dir(bkpinfo->isodir);
405
406 run_program_and_log_output("uname -a", 5);
407 run_program_and_log_output("cat /etc/*-release", 5);
408 run_program_and_log_output("cat /etc/*issue*", 5);
409#ifdef __FreeBSD__
410#else
411 run_program_and_log_output("cat /proc/cpuinfo", 5);
412 /*
413 run_program_and_log_output("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
414 */
415#endif
416
417 if (bkpinfo->use_lzo) {
418 mr_asprintf(bkpinfo->zip_exe, "%s", "lzop");
419 mr_asprintf(bkpinfo->zip_suffix, "%s", "lzo");
420 } else if (bkpinfo->use_gzip) {
421 mr_asprintf(bkpinfo->zip_exe, "%s", "gzip");
422 mr_asprintf(bkpinfo->zip_suffix, "%s", "gz");
423 } else if (bkpinfo->use_lzma) {
424 mr_asprintf(bkpinfo->zip_exe, "%s", "xz");
425 mr_asprintf(bkpinfo->zip_suffix, "%s", "xz");
426 } else if (bkpinfo->compression_level != 0) {
427 mr_asprintf(bkpinfo->zip_exe, "%s", "bzip2");
428 mr_asprintf(bkpinfo->zip_suffix, "%s", "bz2");
429 } else {
430 mr_free(bkpinfo->zip_exe);
431 mr_free(bkpinfo->zip_suffix);
432 }
433
434 if (bkpinfo->backup_media_type == optical) {
435 if ((cdr_exe = find_home_of_exe("growisofs")) == NULL) {
436 fatal_error("Please install growisofs.");
437 }
438 if
439#ifdef __FreeBSD__
440 (TRUE)
441#else
442 (bkpinfo->make_cd_use_lilo)
443#endif
444#ifdef __IA64__
445 {
446 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
447 }
448#else
449 {
450 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
451 }
452#endif
453 else {
454 mondo_mkisofs_sz = mr_compute_uefi_string(cdr_exe);
455 }
456 mr_free(cdr_exe);
457
458 if (bkpinfo->manual_cd_tray) {
459 fatal_error("Manual CD tray + DVD not supported yet.");
460 // -m isn't supported by growisofs, BTW...
461 } else {
462 mr_asprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
463 }
464 mr_free(mondo_mkisofs_sz);
465 if (getenv ("SUDO_COMMAND")) {
466 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
467 tmp = call_program_and_get_last_line_of_output(command);
468 mr_free(command);
469 if (!strcmp(tmp, "1")) {
470 mr_free(tmp);
471 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
472 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
473 }
474 mr_free(tmp);
475 }
476 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
477 } // end of DVD code
478
479// CD-R or CD-RW
480 if (bkpinfo->backup_media_type == optical) {
481 if (!bkpinfo->manual_cd_tray) {
482 mr_asprintf(extra_cdrom_params, "-waiti ");
483 }
484 if (bkpinfo->wipe_media_first) {
485 mr_asprintf(extra_cdrom_params, "%s", "blank=fast ");
486 }
487 if ((cdr_exe = find_home_of_exe("cdrecord")) == NULL) {
488 if ((cdr_exe = find_home_of_exe("wodim")) == NULL) {
489 fatal_error("Please install either cdrecord or wodim.");
490 }
491 }
492 if ((tmp = find_home_of_exe("xorriso")) != NULL) {
493 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_XORRISO_OPT);
494 } else if ((tmp = find_home_of_exe("genisoimage")) != NULL) {
495 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_GENISOIMAGE_OPT);
496 } else if ((tmp = find_home_of_exe("mkisofs")) != NULL) {
497 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_MKISOFS_OPT);
498 } else if ((tmp = find_home_of_exe("wodim")) != NULL) {
499 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_WODIM_OPT);
500 } else {
501 fatal_error("Unable to find a command to create ISO among xorriso, genisoimage, mksiofs or wodim, please install one");
502 }
503 mr_free(tmp);
504
505 if
506#ifdef __FreeBSD__
507 (TRUE)
508#else
509 (bkpinfo->make_cd_use_lilo)
510#endif
511#ifdef __IA64__
512 {
513 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
514 }
515#else
516 {
517 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
518 }
519#endif
520 else {
521 mondo_mkisofs_sz = mr_compute_uefi_string(isofs_cmd);
522 }
523 mr_free(isofs_cmd);
524
525 if (bkpinfo->manual_cd_tray) {
526 if (bkpinfo->call_before_iso == NULL) {
527 mr_asprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
528 } else {
529 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
530 mr_free(bkpinfo->call_before_iso);
531 mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
532 mr_free(call_before_iso_user);
533 }
534 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
535 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);
536 } else {
537 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);
538 }
539 mr_free(cdr_exe);
540 mr_free(mondo_mkisofs_sz);
541 mr_free(extra_cdrom_params);
542 } // end of CD code
543
544 if (bkpinfo->backup_media_type == iso) {
545
546/* Break up isodir into iso_mnt and iso_dir
547 * These will be used along with iso-dev at restore time
548 * to locate the ISOs where ever they're mounted
549 */
550
551 log_it("isodir = %s", bkpinfo->isodir);
552 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
553 log_it("command = %s", command);
554 iso_dev = call_program_and_get_last_line_of_output(command);
555 log_it("res of it = %s", iso_dev);
556 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
557 write_one_liner_data_file(tmp, iso_dev);
558 mr_free(tmp);
559 mr_free(command);
560
561 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
562 mr_free(iso_dev);
563
564 log_it("command = %s", command);
565 iso_mnt = call_program_and_get_last_line_of_output(command);
566 log_it("res of it = %s", iso_mnt);
567 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
568 write_one_liner_data_file(tmp, iso_mnt);
569 mr_free(tmp);
570 mr_free(command);
571
572 log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
573 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
574 if (strlen(iso_tmp) < strlen(iso_mnt)) {
575 mr_asprintf(iso_dir, "%s", "");
576 } else {
577 // If iso_mnt is only / then iso_dir is the full dir
578 // (the formula bellow doesn't work in this case)
579 if (strcmp(iso_mnt, "/") == 0) {
580 mr_asprintf(iso_dir, "%s", iso_tmp);
581 // else it's a part of iso_tmp
582 } else {
583 mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
584 }
585 }
586 mr_free(iso_mnt);
587 mr_free(iso_tmp);
588
589 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
590 write_one_liner_data_file(tmp, iso_dir);
591 mr_free(tmp);
592
593 log_it("iso-dir: %s", iso_dir);
594 mr_free(iso_dir);
595
596 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
597 write_one_liner_data_file(tmp, bkpinfo->prefix);
598 mr_free(tmp);
599
600 log_it("iso-prefix: %s", bkpinfo->prefix);
601
602/* End patch */
603 } // end of iso code
604
605 if (bkpinfo->backup_media_type == netfs) {
606 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
607 write_one_liner_data_file(tmp, bkpinfo->prefix);
608 mr_free(tmp);
609
610 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
611 write_one_liner_data_file(tmp, bkpinfo->isodir);
612 mr_free(tmp);
613
614 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
615 write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
616 mr_free(tmp);
617
618 if (bkpinfo->netfs_mount) {
619 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
620 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
621 mr_free(tmp);
622 } else {
623 log_it("netfs_mount is NULL");
624 retval++;
625 }
626 }
627
628 log_it("Finished processing incoming params");
629 if (retval) {
630 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
631 }
632 if (bkpinfo->include_paths == NULL) {
633 mr_asprintf(bkpinfo->include_paths, "/");
634 }
635 g_backup_media_type = bkpinfo->backup_media_type;
636 return (retval);
637}
638
639
640
641/**
642 * Check the user's system for sanity. Checks performed:
643 * - make sure user has enough RAM (32mb required, 64mb recommended)
644 * - make sure user has enough free space in @c /
645 * - check kernel for ramdisk support
646 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
647 * - make sure CD-ROM is unmounted
648 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
649 *
650 * @return number of problems with the user's setup (0 for success)
651 */
652int some_basic_system_sanity_checks()
653{
654
655 /*@ buffers ************ */
656 char *tmp = NULL;
657
658 /*@ int's *************** */
659 int retval = 0;
660
661 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
662#ifndef __FreeBSD__
663 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
664 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
665 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
666 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
667 }
668 tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
669 if (atol(tmp) < 35000) {
670 retval++;
671 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
672 }
673 if (atol(tmp) < 66000) {
674 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
675 }
676 mr_free(tmp);
677#endif
678
679 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
680 retval++;
681 log_to_screen("Unable to find " MKE2FS_OR_NEWFS " in system path.");
682 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. :)");
683 }
684#ifndef __FreeBSD__
685 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
686 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
687 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
688 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
689 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?")) {
690 // retval++;
691 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
692 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
693 }
694 }
695 }
696#endif
697 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
698 if (system("which xorriso > /dev/null 2> /dev/null")) {
699 if (system("which genisoimage > /dev/null 2> /dev/null")) {
700 retval += whine_if_not_found("mkisofs");
701 }
702 }
703 if (system("which wodim > /dev/null 2> /dev/null")) {
704 retval += whine_if_not_found("cdrecord");
705 }
706 retval += whine_if_not_found("bzip2");
707 retval += whine_if_not_found("gzip");
708 retval += whine_if_not_found("cmp");
709 retval += whine_if_not_found("awk");
710 retval += whine_if_not_found("md5sum");
711 retval += whine_if_not_found("strings");
712 retval += whine_if_not_found("mindi");
713 retval += whine_if_not_found("buffer");
714
715 // abort if Windows partition but no ms-sys and parted
716 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
717 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -Ew efi", 0)) {
718 log_to_screen("I think you have a EFI/UEFI partition.");
719 } else {
720 log_to_screen("I think you have a Windows 9x partition.");
721 }
722 retval += whine_if_not_found("parted");
723 }
724
725 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
726 tmp = call_program_and_get_last_line_of_output("mount | grep -E 'cdr(om|w)'");
727 if (strcmp("", tmp)) {
728 if (strstr(tmp, "autofs")) {
729 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
730 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
731 log_to_screen("eject it. Thank you.");
732 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
733 } else
734 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
735 retval++;
736 mr_free(tmp);
737 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
738 }
739 }
740 mr_free(tmp);
741
742 run_program_and_log_output("cat /etc/fstab", 5);
743#ifdef __FreeBSD__
744 run_program_and_log_output("vinum printconfig", 5);
745#else
746 run_program_and_log_output("cat /etc/raidtab", 5);
747#endif
748
749 if (run_program_and_log_output("mindi -V", 1)) {
750 log_to_screen("Could not ascertain mindi's version number.");
751 log_to_screen("You have not installed Mondo and/or Mindi properly.");
752 log_to_screen("Please uninstall and reinstall them both.");
753 fatal_error("Please reinstall Mondo and Mindi.");
754 }
755 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
756 if (run_program_and_log_output(tmp, 5)) {
757 log_to_screen("%s failed for some reason.", tmp);
758 mr_free(tmp);
759 log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
760 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
761 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
762 retval++;
763 }
764 mr_free(tmp);
765
766 if (!run_program_and_log_output("mr-parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
767 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
768 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
769 }
770
771 if (retval) {
772 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
773 } else {
774 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
775 }
776 return (retval);
777}
778
779
780
781/**
782 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
783 * Seeds the random-number generator, loads important modules, checks the sanity
784 * of the user's Linux distribution, and deletes logfile.
785 * @param bkpinfo The backup information structure. Will be initialized.
786 * @return number of errors (0 for success)
787 */
788int pre_param_configuration()
789{
790 int res = 0;
791 char *tmp = NULL;
792
793 make_hole_for_dir(MNT_CDROM);
794 assert(bkpinfo != NULL);
795 srandom((unsigned long) (time(NULL)));
796 insmod_crucial_modules();
797 if (bkpinfo->disaster_recovery) {
798 if (!does_nonMS_partition_exist()) {
799 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
800 }
801 }
802
803 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
804 run_program_and_log_output(tmp, FALSE);
805 paranoid_free(tmp);
806 if (find_and_store_mondoarchives_home(g_mondo_home)) {
807 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");
808 res++;
809 return (res);
810 }
811 res += some_basic_system_sanity_checks();
812 if (res) {
813 log_it("Your distribution did not pass Mondo's sanity test.");
814 }
815 g_current_media_number = 1;
816 return (res);
817}
818
819/* From busybox under GPLv2 */
820#ifndef HAVE_MKDTEMP
821/* This is now actually part of POSIX.1, but was only added in 2008 */
822char* mkdtemp(char *template)
823{
824 if (mkstemp(template) == -1) {
825 return NULL;
826 }
827 unlink(template);
828 if (mkdir(template, 0700) != 0) {
829 return NULL;
830 }
831 return template;
832}
833#endif
834
835void setup_tmpdir(char *path) {
836
837 char *tmp = NULL;
838
839 if (bkpinfo->tmpdir != NULL) {
840 /* purging a potential old tmpdir */
841 if (chdir("/tmp")) {
842 // FIXME
843 }
844 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
845 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
846 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
847 } else {
848 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
849 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
850 }
851 paranoid_system(tmp);
852 mr_free(tmp);
853 }
854
855 /* Always take in account arg first, then env, then default */
856 if (path != NULL) {
857 mr_system("mkdir -p %s",path);
858 log_it("Created temporary directory %s", path);
859 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
860 } else if (getenv("TMPDIR")) {
861 mr_system("mkdir -p %s",getenv("TMPDIR"));
862 log_it("Created temporary directory %s", getenv("TMPDIR"));
863 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
864 } else if (getenv("MRTMP")) {
865 mr_system("mkdir -p %s",getenv("MRTMP"));
866 log_it("Created temporary directory %s", getenv("MRTMP"));
867 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
868 } else {
869 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
870 }
871 mr_free(bkpinfo->tmpdir);
872 bkpinfo->tmpdir = mkdtemp(tmp);
873 if (bkpinfo->tmpdir == NULL) {
874 printf("Failed to create global tmp directory %s for Mondo.",tmp);
875 mr_free(tmp);
876 finish(-1);
877 }
878 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
879 mr_system("mkdir -p %s/tmpfs", bkpinfo->tmpdir);
880}
881
882void setup_scratchdir(char *path) {
883
884 char *tmp = NULL;
885
886 if (bkpinfo->scratchdir != NULL) {
887 /* purging a potential old scratchdir */
888 if (chdir("/tmp")) {
889 // FIXME
890 }
891 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
892 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
893 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
894 } else {
895 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
896 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
897 }
898 paranoid_system(tmp);
899 mr_free(tmp);
900 }
901
902 /* Always take in account arg first, then env, then default */
903 if (path != NULL) {
904 mr_system("mkdir -p %s",path);
905 log_it("Created scratch directory %s", path);
906 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
907 } else if (getenv("MRSCRATCH")) {
908 mr_system("mkdir -p %s",getenv("MRSCRATCH"));
909 log_it("Created scratch directory %s", getenv("MRSCRATCH"));
910 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
911 } else {
912 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
913 }
914 mr_free(bkpinfo->scratchdir);
915 bkpinfo->scratchdir = mkdtemp(tmp);
916 if (bkpinfo->scratchdir == NULL) {
917 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
918 mr_free(tmp);
919 finish(-1);
920 }
921 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
922 mr_system("mkdir -p %s", bkpinfo->scratchdir);
923}
924
925
926/**
927 * Reset all fields of the backup information structure to a sensible default.
928 * @param bkpinfo The @c bkpinfo to reset.
929 */
930void reset_bkpinfo()
931{
932 assert(bkpinfo != NULL);
933 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
934
935 bkpinfo->media_device = NULL;
936 bkpinfo->media_size = -1;
937 bkpinfo->boot_loader = '\0';
938 bkpinfo->boot_device = NULL;
939 bkpinfo->zip_exe = NULL;
940 bkpinfo->zip_suffix = NULL;
941 bkpinfo->image_devs = NULL;
942 bkpinfo->compression_level = 3;
943 bkpinfo->use_lzo = FALSE;
944 bkpinfo->use_gzip = FALSE;
945 bkpinfo->use_lzma = FALSE;
946 bkpinfo->verify_data = FALSE;
947 bkpinfo->backup_data = FALSE;
948 bkpinfo->restore_data = FALSE;
949 bkpinfo->use_star = FALSE;
950 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
951
952 /* We need tmpdir as early as possible for further function calls */
953 bkpinfo->tmpdir = NULL; // Really setup just after
954 bkpinfo->scratchdir = NULL; // Really setup just after
955 setup_tmpdir(NULL);
956 setup_scratchdir(NULL);
957
958 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
959 if (bkpinfo->disaster_recovery) {
960 mr_asprintf(bkpinfo->isodir, "%s", "/");
961 } else {
962 mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
963 }
964 mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
965 bkpinfo->optimal_set_size = 0L;
966 bkpinfo->backup_media_type = none;
967 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
968 bkpinfo->exclude_paths = NULL;
969 bkpinfo->include_paths = NULL;
970 bkpinfo->exclude_devs = NULL;
971 bkpinfo->restore_path = NULL;
972 bkpinfo->call_before_iso = NULL;
973 bkpinfo->call_make_iso = NULL;
974 bkpinfo->call_burn_iso = NULL;
975 bkpinfo->call_after_iso = NULL;
976 bkpinfo->kernel_path = NULL;
977 bkpinfo->netfs_mount = NULL;
978 bkpinfo->netfs_proto = NULL;
979 bkpinfo->netfs_user = NULL;
980 bkpinfo->netfs_remote_dir = NULL;
981 bkpinfo->postnuke_tarball = NULL;
982 bkpinfo->subdir = NULL;
983 bkpinfo->wipe_media_first = FALSE;
984 bkpinfo->differential = 0;
985 bkpinfo->please_dont_eject = FALSE;
986 bkpinfo->manual_cd_tray = FALSE;
987 bkpinfo->make_cd_use_lilo = FALSE;
988 bkpinfo->use_obdr = FALSE;
989 bkpinfo->restore_mode = interactive;
990 bkpinfo->boot_type = BIOS;
991}
992
993
994/**
995 * Get the remaining free space (in MB) on @p partition.
996 * @param partition The partition to check free space on (either a device or a mountpoint).
997 * @return The free space on @p partition, in MB.
998 */
999long free_space_on_given_partition(char *partition)
1000{
1001 char *out_sz = NULL;
1002 char *command = NULL;
1003 long res;
1004
1005 assert_string_is_neither_NULL_nor_zerolength(partition);
1006
1007 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
1008 if (system(command)) {
1009 mr_free(command);
1010 return (-1);
1011 } // partition does not exist
1012 mr_free(command);
1013
1014 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
1015 out_sz = call_program_and_get_last_line_of_output(command);
1016 mr_free(command);
1017
1018 if (strlen(out_sz) == 0) {
1019 mr_free(out_sz);
1020 return (-1);
1021 } // error within df, probably
1022 res = atol(out_sz);
1023 mr_free(out_sz);
1024 return (res);
1025}
1026
1027/**
1028 * Retrieve the line containing @p label from the config file.
1029 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1030 * @param label What to read from the file.
1031 * @param value Where to put it.
1032 * @return 0 for success, 1 for failure.
1033 */
1034int read_cfg_var(char *config_file, char *label, char *value)
1035{
1036 /*@ buffer ****************************************************** */
1037 char *command = NULL;
1038 char *tmp = NULL;
1039
1040 /*@ end vars *************************************************** */
1041
1042 assert_string_is_neither_NULL_nor_zerolength(config_file);
1043 assert_string_is_neither_NULL_nor_zerolength(label);
1044 if (!does_file_exist(config_file)) {
1045 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1046 value[0] = '\0';
1047 return (1);
1048 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1049 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1050 return (0);
1051 } else {
1052 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1053 tmp = call_program_and_get_last_line_of_output(command);
1054 strcpy(value, tmp);
1055 mr_free(command);
1056
1057 log_msg(4, "Configuration item %s is %s", label, value);
1058 if (strlen(value) == 0) {
1059 return (1);
1060 } else {
1061 return (0);
1062 }
1063 }
1064}
1065
1066
1067
1068/**
1069 * Remount @c supermount if it was unmounted earlier.
1070 */
1071void remount_supermounts_if_necessary()
1072{
1073 if (g_remount_cdrom_at_end) {
1074 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1075 }
1076}
1077
1078/**
1079 * Unmount @c supermount if it's mounted.
1080 */
1081void unmount_supermounts_if_necessary()
1082{
1083 if (run_program_and_log_output
1084 ("mount | grep cdrom | grep super", FALSE) == 0) {
1085 g_remount_cdrom_at_end = TRUE;
1086 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1087 }
1088}
1089
1090/**
1091 * Whether we had to stop autofs (if so, restart it at end).
1092 */
1093bool g_autofs_stopped = FALSE;
1094
1095/**
1096 * Path to the autofs initscript ("" if none exists).
1097 */
1098char g_autofs_exe[MAX_STR_LEN];
1099
1100/**
1101 * Autofs initscript in Xandros Linux distribution.
1102 */
1103#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1104
1105/**
1106 * Autofs initscript in most Linux distributions.
1107 */
1108#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1109
1110/**
1111 * If autofs is mounted, stop it (restart at end).
1112 */
1113void stop_autofs_if_necessary()
1114{
1115 char *tmp = NULL;
1116
1117 g_autofs_exe[0] = '\0';
1118 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1119 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1120 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1121 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1122 }
1123
1124 if (!g_autofs_exe[0]) {
1125 log_msg(3, "No autofs detected.");
1126 } else {
1127 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1128 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1129 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1130 if (run_program_and_log_output(tmp, 2)) {
1131 log_it("Failed to stop autofs - I assume it wasn't running");
1132 } else {
1133 g_autofs_stopped = TRUE;
1134 log_it("Stopped autofs OK");
1135 }
1136 mr_free(tmp);
1137 }
1138}
1139
1140/**
1141 * If autofs was stopped earlier, restart it.
1142 */
1143void restart_autofs_if_necessary()
1144{
1145 char *tmp = NULL;
1146
1147 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1148 log_msg(3, "No autofs detected.");
1149 return;
1150 }
1151 mr_asprintf(tmp, "%s start", g_autofs_exe);
1152 if (run_program_and_log_output(tmp, 2)) {
1153 log_it("Failed to start autofs");
1154 } else {
1155 g_autofs_stopped = FALSE;
1156 log_it("Started autofs OK");
1157 }
1158 mr_free(tmp);
1159}
1160
1161
1162/**
1163 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1164 */
1165void mount_boot_if_necessary() {
1166 char *tmp = NULL;
1167 char *command = NULL;
1168
1169 log_msg(1, "Started sub");
1170 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1171 g_boot_mountpt[0] = '\0';
1172 log_msg(4, "Done. Great. Setting command to something");
1173 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1174 log_msg(4, "Cool. Command = '%s'", command);
1175 tmp = call_program_and_get_last_line_of_output(command);
1176 mr_free(command);
1177
1178 log_msg(4, "tmp = '%s'", tmp);
1179 log_it("/boot is at %s according to /etc/fstab", tmp);
1180 mr_asprintf(command, "mount | grep -Ew '/boot'");
1181 mr_free(tmp);
1182
1183 tmp = call_program_and_get_last_line_of_output(command);
1184 mr_free(command);
1185
1186 if (!strcmp(tmp,"")) {
1187 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1188 if (!run_program_and_log_output("mount /boot", 5)) {
1189 strcpy(g_boot_mountpt, "/boot");
1190 log_msg(1, "Mounted /boot");
1191 } else {
1192 log_it("...ignored cos it's a label or uuid :-)");
1193 }
1194 } else {
1195 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1196 log_msg(3, "command = %s", command);
1197 if (run_program_and_log_output(command, 5)) {
1198 strcpy(g_boot_mountpt, tmp);
1199 mr_free(tmp);
1200 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1201
1202 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1203 if (run_program_and_log_output(tmp, 5)) {
1204 g_boot_mountpt[0] = '\0';
1205 log_msg(1, "Plan B");
1206 if (!run_program_and_log_output("mount /boot", 5)) {
1207 strcpy(g_boot_mountpt, "/boot");
1208 log_msg(1, "Plan B worked");
1209 } else {
1210 log_msg(1,
1211 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1212 }
1213 }
1214 }
1215 mr_free(command);
1216 }
1217 }
1218 mr_free(tmp);
1219 log_msg(1, "Ended sub");
1220}
1221
1222
1223/**
1224 * If we mounted /boot earlier, unmount it.
1225 */
1226void unmount_boot_if_necessary()
1227{
1228 char *tmp = NULL;
1229
1230 log_msg(3, "starting");
1231 if (g_boot_mountpt[0]) {
1232 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1233 if (run_program_and_log_output(tmp, 5)) {
1234 log_it("WARNING - unable to unmount /boot");
1235 }
1236 mr_free(tmp);
1237 }
1238 log_msg(3, "leaving");
1239}
1240
1241
1242
1243/**
1244 * Write a line to a configuration file. Writes a line of the form,
1245 * @c label @c value.
1246 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1247 * @param label What to call this bit of data you're writing.
1248 * @param value The bit of data you're writing.
1249 * @return 0 for success, 1 for failure.
1250 */
1251int write_cfg_var(char *config_file, char *label, char *value)
1252{
1253 /*@ buffers ***************************************************** */
1254 char *command = NULL;
1255 char *tempfile = NULL;
1256
1257
1258 /*@ end vars *************************************************** */
1259 assert_string_is_neither_NULL_nor_zerolength(config_file);
1260 assert_string_is_neither_NULL_nor_zerolength(label);
1261 assert(value != NULL);
1262 if (!does_file_exist(config_file)) {
1263 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1264 return (1);
1265 }
1266 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1267 if (does_file_exist(config_file)) {
1268 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1269 paranoid_system(command);
1270 mr_free(command);
1271 }
1272 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1273 paranoid_system(command);
1274 mr_free(command);
1275
1276 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1277 paranoid_system(command);
1278 mr_free(command);
1279 unlink(tempfile);
1280 mr_free(tempfile);
1281 return (0);
1282}
1283
1284
1285/**
1286 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1287 * information to the logfile.
1288 */
1289void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1290
1291 va_list args;
1292 static int depth = 0;
1293 FILE *fout;
1294
1295 if (depth > 5) {
1296 depth--;
1297 return;
1298 }
1299 depth++;
1300
1301 if (debug_level <= g_loglevel) {
1302 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1303 return;
1304 }
1305
1306 // add tabs to distinguish log levels
1307 if (debug_level > 0) {
1308 fprintf(fout, "DBG%d: ", debug_level);
1309 if (getpid() == g_main_pid)
1310 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1311 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1312 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1313 else
1314 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1315 } else {
1316 fprintf(fout, "INFO: ");
1317 }
1318 va_start(args, fmt);
1319 vfprintf(fout, fmt, args);
1320 va_end(args);
1321
1322 fprintf(fout, "\n");
1323 paranoid_fclose(fout);
1324 }
1325 depth--;
1326}
1327
1328/**
1329 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1330 */
1331void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1332
1333
1334/**
1335 * Allocate or free important globals, depending on @p mal.
1336 * @param mal If TRUE, malloc; if FALSE, free.
1337 */
1338void do_libmondo_global_strings_thing(int mal)
1339{
1340 if (mal) {
1341 malloc_string(g_boot_mountpt);
1342 malloc_string(g_mondo_home);
1343 malloc_string(g_magicdev_command);
1344 } else {
1345 paranoid_free(g_boot_mountpt);
1346 paranoid_free(g_mondo_home);
1347 paranoid_free(g_magicdev_command);
1348 }
1349}
1350
1351/**
1352 * Allocate important globals.
1353 * @see do_libmondo_global_strings_thing
1354 */
1355void malloc_libmondo_global_strings(void)
1356{
1357 do_libmondo_global_strings_thing(1);
1358}
1359
1360/**
1361 * Free important globals.
1362 * @see do_libmondo_global_strings_thing
1363 */
1364void free_libmondo_global_strings(void)
1365{
1366 do_libmondo_global_strings_thing(0);
1367}
1368
1369
1370
1371/**
1372 * Stop @c magicdev if it's running.
1373 * The command used to start it is saved in @p g_magicdev_command.
1374 */
1375void stop_magicdev_if_necessary()
1376{
1377 char *tmp = NULL;
1378
1379 tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1380 strcpy(g_magicdev_command, tmp);
1381 if (g_magicdev_command[0]) {
1382 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1383 paranoid_system("killall magicdev");
1384 }
1385 mr_free(tmp);
1386}
1387
1388
1389/**
1390 * Restart magicdev if it was stopped.
1391 */
1392void restart_magicdev_if_necessary()
1393{
1394 char *tmp = NULL;
1395
1396 if (g_magicdev_command && g_magicdev_command[0]) {
1397 mr_asprintf(tmp, "%s &", g_magicdev_command);
1398 paranoid_system(tmp);
1399 mr_free(tmp);
1400 }
1401}
1402
1403/* @} - end of utilityGroup */
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