source: MondoRescue/branches/3.3/mondo/src/common/libmondo-tools.c@ 3753

Last change on this file since 3753 was 3753, checked in by Bruno Cornec, 4 years ago

Remove floppy support
  • Property svn:keywords set to Id
File size: 40.3 KB
Line 
1/*
2 $Id: libmondo-tools.c 3753 2019-11-30 00:45:07Z 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#include "lib-common-externs.h"
16#include "libmondo-tools.h"
17#include "libmondo-gui-EXT.h"
18#include "libmondo-files-EXT.h"
19#include "libmondo-fork-EXT.h"
20#include "libmondo-raid-EXT.h"
21#include "libmondo-devices-EXT.h"
22#include <sys/socket.h>
23#include <netdb.h>
24#include <stdlib.h>
25#include <netinet/in.h>
26#include <arpa/inet.h>
27#include <sys/utsname.h>
28
29/*@unused@*/
30//static char cvsid[] = "$Id: libmondo-tools.c 3753 2019-11-30 00:45:07Z bruno $";
31
32extern int g_tape_buffer_size_MB;
33extern bool g_text_mode;
34extern int g_currentY;
35extern int g_current_media_number;
36extern char *MONDO_LOGFILE;
37
38/* Reference to global bkpinfo */
39extern struct s_bkpinfo *bkpinfo;
40
41/**
42 * @addtogroup globalGroup
43 * @{
44 */
45bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
46bool g_cd_recovery = FALSE; ///< TRUE if we're making an "autonuke" backup.
47double g_kernel_version;
48
49/**
50 * The place where /boot is mounted.
51 */
52char *g_boot_mountpt = NULL;
53
54/**
55 * The location of Mondo's home directory.
56 */
57char *g_mondo_home = NULL;
58
59/**
60 * The serial string (used to differentiate between backups) of the current backup.
61 */
62extern char *g_serial_string;
63
64/**
65 * The location where tmpfs is mounted, or "" if it's not mounted.
66char *g_tmpfs_mountpt = NULL;
67 */
68char *g_magicdev_command = NULL;
69
70/**
71 * The default maximum level to log messages at or below.
72 */
73int g_loglevel = DEFAULT_DEBUG_LEVEL;
74
75/* @} - end of globalGroup */
76
77
78extern pid_t g_buffer_pid;
79extern pid_t g_main_pid;
80
81extern t_bkptype g_backup_media_type;
82
83extern bool am_I_in_disaster_recovery_mode(void);
84
85/*-----------------------------------------------------------*/
86
87
88/**
89 * @addtogroup utilityGroup
90 * @{
91 */
92/**
93 * Assertion handler. Prints a friendly message to the user,
94 * offering to ignore all, dump core, break to debugger,
95 * exit, or ignore. Intended to be used with an assert() macro.
96 *
97 * @param file The file in which the assertion triggered.
98 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
99 * @param line The line number of the assert() statement.
100 * @param exp The expression that failed (as a string).
101 */
102void _mondo_assert_fail(const char *file,
103 const char *function, int line, const char *exp)
104{
105 static int ignoring_assertions = 0;
106 bool is_valid = TRUE;
107
108 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line, function);
109 if (ignoring_assertions) {
110 log_it("Well, the user doesn't care...");
111 return;
112 }
113 if (!g_text_mode)
114 newtSuspend();
115 printf("ASSERTION FAILED: `%s'\n", exp);
116 printf("\tat %s:%d in %s\n\n", file, line, function);
117 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
118 do {
119 is_valid = TRUE;
120 switch (toupper(getchar())) {
121 case 'A': // ignore (A)ll
122 ignoring_assertions = 1;
123 break;
124 case 'B': // a(B)ort
125 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
126 raise(SIGABRT);
127 break; /* "can't get here" */
128 case 'D': // (D)ebug, aka asm("int 3")
129#ifdef __IA32__
130 __asm__ __volatile__("int $3"); // break to debugger
131#endif
132 break;
133 case 'E': // (E)xit
134 fatal_error("Failed assertion -- see above for details");
135 break; /* "can't get here" */
136 case 'I': // (I)gnore
137 break;
138 /* These next two work as follows:
139 the `default' catches the user's invalid choice and says so;
140 the '\n' catches the newline on the end and prints the prompt again.
141 */
142 case '\n':
143 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
144 break;
145 default:
146 is_valid = FALSE;
147 printf("Invalid choice.\n");
148 break;
149 }
150 } while (!is_valid);
151
152 if (ignoring_assertions) {
153 log_it("Ignoring ALL assertions from now on.");
154 } else {
155 log_it("Ignoring assertion: %s", exp);
156 }
157
158 getchar(); // skip \n
159
160 if (!g_text_mode)
161 newtResume();
162}
163
164/**
165 * Clean's up users' KDE desktops.
166 * @bug Details about this function are unknown.
167 */
168void clean_up_KDE_desktop_if_necessary(void)
169{
170 char *tmp = NULL;
171
172 mr_asprintf(tmp, "for i in `find /root /home -maxdepth 2 -type d -name Desktop -maxdepth 2`; do file=$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");
173 run_program_and_log_output(tmp, 5);
174 mr_free(tmp);
175}
176
177
178/**
179 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
180 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
181 *
182 * @param home_sz String to store the home directory ("" if it could not be found).
183 * @return 0 for success, nonzero for failure.
184 */
185int find_and_store_mondoarchives_home(char *home_sz)
186{
187 assert(home_sz != NULL);
188 strcpy(home_sz, MONDO_SHARE);
189 return (0);
190}
191
192
193char *get_architecture(void) {
194#ifdef __IA32__
195# ifdef __X86_64__
196 return ("x86_64");
197# else
198 return ("i386");
199# endif
200#endif
201#ifdef __IA64__
202 return ("ia64");
203#endif
204 return ("unknown");
205}
206
207
208char *get_uname_m(void) {
209
210 struct utsname utsn;
211 char *tmp = NULL;
212
213 uname(&utsn);
214 mr_asprintf(tmp, "%s", utsn.machine);
215 return (tmp);
216}
217
218
219
220double get_kernel_version(void)
221{
222 char *p = NULL;
223 char *tmp = NULL;
224 double d;
225#ifdef __FreeBSD__
226 // JOSH - FIXME :)
227 d = 5.2; // :-)
228#else
229 tmp = call_program_and_get_last_line_of_output("uname -r");
230 p = strchr(tmp, '.');
231 if (p) {
232 p = strchr(++p, '.');
233 if (p) {
234 while (*p) {
235 *p = *(p + 1);
236 p++;
237 }
238 }
239 }
240 d = atof(tmp);
241 mr_free(tmp);
242#endif
243 log_msg(1, "g_kernel_version = %f", d);
244 return (d);
245}
246
247
248/**
249 * Get the current time.
250 * @return number of seconds since the epoch.
251 */
252long get_time()
253{
254 return (long) time((void *) 0);
255}
256
257
258/**
259 * Initialize a RAID volume structure, setting fields to zero. The
260 * actual hard drive is unaffected.
261 *
262 * @param raidrec The RAID volume structure to initialize.
263 * @note This function is system dependent.
264 */
265#ifdef __FreeBSD__
266void initialize_raidrec(struct vinum_volume *raidrec)
267{
268 int i, j;
269 raidrec->volname[0] = '\0';
270 raidrec->plexes = 0;
271 for (i = 0; i < 9; ++i) {
272 raidrec->plex[i].raidlevel = -1;
273 raidrec->plex[i].stripesize = 0;
274 raidrec->plex[i].subdisks = 0;
275 for (j = 0; j < 9; ++j) {
276 strcpy(raidrec->plex[i].sd[j].which_device, "");
277 }
278 }
279}
280#else
281void initialize_raidrec(struct raid_device_record *raidrec)
282{
283 assert(raidrec != NULL);
284 raidrec->raid_device[0] = '\0';
285 raidrec->raid_level = -9;
286 raidrec->persistent_superblock = 1;
287 raidrec->chunk_size = 64;
288 raidrec->parity = -1;
289 raidrec->data_disks.entries = 0;
290 raidrec->spare_disks.entries = 0;
291 raidrec->parity_disks.entries = 0;
292 raidrec->failed_disks.entries = 0;
293 raidrec->additional_vars.entries = 0;
294}
295#endif
296
297
298
299
300/**
301 * Insert modules that Mondo requires.
302 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
303 * @c msdosfs and @c ext2fs for FreeBSD.
304 */
305void insmod_crucial_modules(void)
306{
307#ifdef __FreeBSD__
308 paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
309 paranoid_system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
310#else
311 paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
312#endif
313}
314
315/* compute the final options for bootable media, considering the comand and the boot type */
316char *mr_compute_uefi_string(char *isofs_cmd) {
317
318 char *uefistr = NULL;
319 char *mondo_mkisofs_sz = NULL;
320
321 /* real media */
322 if (strstr(isofs_cmd,"growisofs")) {
323 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
324 } else {
325 /* iso image */
326 if (bkpinfo->boot_type == UEFI) {
327 if (strstr(isofs_cmd,"xorriso")) {
328 /* xorriso needs another '-' before efi-boot */
329 mr_asprintf(uefistr, "%s -%s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
330 } else {
331 mr_asprintf(uefistr, "%s %s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
332 }
333 } else {
334 mr_asprintf(uefistr, "%s",MONDO_MKISOFS_CMS);
335 }
336 mr_asprintf(mondo_mkisofs_sz, "%s%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX, uefistr);
337 }
338
339 return(mondo_mkisofs_sz);
340}
341
342/**
343 * Finish configuring the backup information structure. Call this function
344 * to set the parameters that depend on those that can be given on the command
345 * line.
346 *
347 * @param bkpinfo The backup information structure. Fields modified/used:
348 * - Used: @c bkpinfo->backup_data
349 * - Used: @c bkpinfo->backup_media_type
350 * - Used: @c bkpinfo->cdrw_speed
351 * - Used: @c bkpinfo->compression_level
352 * - Used: @c bkpinfo->include_paths
353 * - Used: @c bkpinfo->prefix
354 * - Used: @c bkpinfo->isodir
355 * - Used: @c bkpinfo->manual_cd_tray
356 * - Used: @c bkpinfo->make_cd_use_lilo
357 * - Used: @c bkpinfo->media_device
358 * - Used: @c bkpinfo->netfs_mount
359 * - Used: @c bkpinfo->nonbootable_backup
360 * - Used: @c bkpinfo->scratchdir
361 * - Used: @c bkpinfo->tmpdir
362 * - Used: @c bkpinfo->use_lzo
363 * - Modified: @c bkpinfo->call_before_iso
364 * - Modified: @c bkpinfo->call_make_iso
365 * - Modified: @c bkpinfo->optimal_set_size
366 * - Modified: @c bkpinfo->zip_exe
367 * - Modified: @c bkpinfo->zip_suffix
368 *
369 * @return number of errors, or 0 for success.
370 * @note Also creates directories that are specified in the @c bkpinfo structure but
371 * do not exist.
372 */
373int post_param_configuration()
374{
375 char *extra_cdrom_params = NULL;
376 char *mondo_mkisofs_sz = NULL;
377 char *command = NULL;
378 char *isofs_cmd = NULL;
379 int retval = 0;
380 char *cdr_exe = NULL;
381 char *tmp = NULL;
382 char *call_before_iso_user = NULL;
383 char *iso_dev = NULL;
384 char *iso_mnt = NULL;
385 char *iso_tmp = NULL;
386 char *iso_dir = NULL;
387
388 assert(bkpinfo != NULL);
389
390 bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024L;
391
392 log_msg(1, "Post-param");
393 if (bkpinfo->backup_media_type == tape) {
394 if (whine_if_not_found("mt") == 1) {
395 fatal_error("Please install the mt command");
396 }
397 log_msg(1, "Tape");
398 if (bkpinfo->media_device == NULL) {
399 return(1);
400 }
401 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
402 log_msg(1, "tmp = '%s'", tmp);
403 if (run_program_and_log_output(tmp, 3)) {
404 mr_free(tmp);
405 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.");
406 }
407 mr_free(tmp);
408 }
409 if (bkpinfo->backup_media_type == iso)
410 make_hole_for_dir(bkpinfo->isodir);
411
412 run_program_and_log_output("uname -a", 5);
413 run_program_and_log_output("cat /etc/*-release", 5);
414 run_program_and_log_output("cat /etc/*issue*", 5);
415#ifdef __FreeBSD__
416#else
417 run_program_and_log_output("cat /proc/cpuinfo", 5);
418 /*
419 run_program_and_log_output("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
420 */
421#endif
422
423 if (bkpinfo->use_lzo) {
424 strcpy(bkpinfo->zip_exe, "lzop");
425 strcpy(bkpinfo->zip_suffix, "lzo");
426 } else if (bkpinfo->use_gzip) {
427 strcpy(bkpinfo->zip_exe, "gzip");
428 strcpy(bkpinfo->zip_suffix, "gz");
429 } else if (bkpinfo->use_lzma) {
430 strcpy(bkpinfo->zip_exe, "lzma");
431 strcpy(bkpinfo->zip_suffix, "lzma");
432 } else if (bkpinfo->compression_level != 0) {
433 strcpy(bkpinfo->zip_exe, "bzip2");
434 strcpy(bkpinfo->zip_suffix, "bz2");
435 } else {
436 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
437 }
438
439// DVD
440
441 if (bkpinfo->backup_media_type == dvd) {
442 if (find_home_of_exe("growisofs")) {
443 mr_asprintf(cdr_exe, "growisofs");
444 } // unlikely to be used
445 else {
446 fatal_error("Please install growisofs.");
447 }
448 if (bkpinfo->nonbootable_backup) {
449 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
450 } else if
451#ifdef __FreeBSD__
452 (TRUE)
453#else
454 (bkpinfo->make_cd_use_lilo)
455#endif
456#ifdef __IA64__
457 {
458 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
459 }
460#else
461 {
462 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
463 }
464#endif
465 else {
466 mondo_mkisofs_sz = mr_compute_uefi_string(cdr_exe);
467 }
468 if (bkpinfo->manual_cd_tray) {
469 fatal_error("Manual CD tray + DVD not supported yet.");
470 // -m isn't supported by growisofs, BTW...
471 } else {
472 sprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
473 }
474 mr_free(mondo_mkisofs_sz);
475 if (getenv ("SUDO_COMMAND")) {
476 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
477 tmp = call_program_and_get_last_line_of_output(command);
478 mr_free(command);
479 if (!strcmp(tmp, "1")) {
480 mr_free(tmp);
481 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
482 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
483 }
484 mr_free(tmp);
485 }
486 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
487 } // end of DVD code
488
489// CD-R or CD-RW
490 if (bkpinfo->backup_media_type == cdrw
491 || bkpinfo->backup_media_type == cdr) {
492 if (!bkpinfo->manual_cd_tray) {
493 mr_asprintf(extra_cdrom_params, "-waiti ");
494 }
495 if (bkpinfo->backup_media_type == cdrw) {
496 mr_asprintf(extra_cdrom_params, "blank=fast ");
497 }
498 if (extra_cdrom_params == NULL) {
499 // If not initialized earlier, do it now
500 mr_asprintf(extra_cdrom_params, " ");
501 }
502 if (find_home_of_exe("cdrecord")) {
503 mr_asprintf(cdr_exe, "cdrecord");
504 } else if (find_home_of_exe("dvdrecord")) {
505 mr_asprintf(cdr_exe, "dvdrecord");
506 } else {
507 fatal_error("Please install either cdrecord or dvdrecord.");
508 }
509 if (find_home_of_exe("xorriso")) {
510 mr_asprintf(isofs_cmd, "%s", MONDO_XORRISO_CMD);
511 } else if (find_home_of_exe("genisoimage")) {
512 mr_asprintf(isofs_cmd, "%s", MONDO_GENISOIMAGE_CMD);
513 } else {
514 mr_asprintf(isofs_cmd, "%s", MONDO_MKISOFS_CMD);
515 }
516 if (bkpinfo->nonbootable_backup) {
517 mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
518 } else if
519#ifdef __FreeBSD__
520 (TRUE)
521#else
522 (bkpinfo->make_cd_use_lilo)
523#endif
524#ifdef __IA64__
525 {
526 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
527 }
528#else
529 {
530 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
531 }
532#endif
533 else {
534 mondo_mkisofs_sz = mr_compute_uefi_string(isofs_cmd);
535 }
536 mr_free(isofs_cmd);
537
538 if (bkpinfo->manual_cd_tray) {
539 if (bkpinfo->call_before_iso[0] == '\0') {
540 sprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
541 } else {
542 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
543 sprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
544 mr_free(call_before_iso_user);
545 }
546 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
547 sprintf(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);
548 } else {
549 sprintf(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);
550 }
551 mr_free(cdr_exe);
552 mr_free(mondo_mkisofs_sz);
553 mr_free(extra_cdrom_params);
554 } // end of CD code
555
556 if (bkpinfo->backup_media_type == iso) {
557
558/* Break up isodir into iso_mnt and iso_dir
559 * These will be used along with iso-dev at restore time
560 * to locate the ISOs where ever they're mounted
561 */
562
563 log_it("isodir = %s", bkpinfo->isodir);
564 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
565 log_it("command = %s", command);
566 iso_dev = call_program_and_get_last_line_of_output(command);
567 log_it("res of it = %s", iso_dev);
568 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
569 write_one_liner_data_file(tmp, iso_dev);
570 mr_free(tmp);
571 mr_free(command);
572
573 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
574 mr_free(iso_dev);
575
576 log_it("command = %s", command);
577 iso_mnt = call_program_and_get_last_line_of_output(command);
578 log_it("res of it = %s", iso_mnt);
579 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
580 write_one_liner_data_file(tmp, iso_mnt);
581 mr_free(tmp);
582 mr_free(command);
583
584 log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
585 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
586 if (strlen(iso_tmp) < strlen(iso_mnt)) {
587 mr_asprintf(iso_dir, "%s", "");
588 } else {
589 // If iso_mnt is only / then iso_dir is the full dir
590 // (the formula bellow doesn't work in this case)
591 if (strcmp(iso_mnt, "/") == 0) {
592 mr_asprintf(iso_dir, "%s", iso_tmp);
593 // else it's a part of iso_tmp
594 } else {
595 mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
596 }
597 }
598 mr_free(iso_mnt);
599 mr_free(iso_tmp);
600
601 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
602 write_one_liner_data_file(tmp, iso_dir);
603 mr_free(tmp);
604
605 log_it("iso-dir: %s", iso_dir);
606 mr_free(iso_dir);
607
608 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
609 write_one_liner_data_file(tmp, bkpinfo->prefix);
610 mr_free(tmp);
611
612 log_it("iso-prefix: %s", bkpinfo->prefix);
613
614/* End patch */
615 } // end of iso code
616
617 if (bkpinfo->backup_media_type == netfs) {
618 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
619 write_one_liner_data_file(tmp, bkpinfo->prefix);
620 mr_free(tmp);
621
622 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
623 write_one_liner_data_file(tmp, bkpinfo->isodir);
624 mr_free(tmp);
625
626 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
627 write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
628 mr_free(tmp);
629
630 if (bkpinfo->netfs_mount) {
631 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
632 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
633 mr_free(tmp);
634 } else {
635 log_it("netfs_mount is NULL");
636 retval++;
637 }
638 }
639
640 log_it("Finished processing incoming params");
641 if (retval) {
642 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
643 }
644 if (bkpinfo->include_paths == NULL) {
645 mr_asprintf(bkpinfo->include_paths, "/");
646 }
647 g_backup_media_type = bkpinfo->backup_media_type;
648 return (retval);
649}
650
651
652
653/**
654 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
655 * Seeds the random-number generator, loads important modules, checks the sanity
656 * of the user's Linux distribution, and deletes logfile.
657 * @param bkpinfo The backup information structure. Will be initialized.
658 * @return number of errors (0 for success)
659 */
660int pre_param_configuration()
661{
662 int res = 0;
663 char *tmp = NULL;
664
665 make_hole_for_dir(MNT_CDROM);
666 assert(bkpinfo != NULL);
667 srandom((unsigned long) (time(NULL)));
668 insmod_crucial_modules();
669 if (bkpinfo->disaster_recovery) {
670 if (!does_nonMS_partition_exist()) {
671 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
672 }
673 }
674
675 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
676 run_program_and_log_output(tmp, FALSE);
677 paranoid_free(tmp);
678 if (find_and_store_mondoarchives_home(g_mondo_home)) {
679 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");
680 res++;
681 return (res);
682 }
683 res += some_basic_system_sanity_checks();
684 if (res) {
685 log_it("Your distribution did not pass Mondo's sanity test.");
686 }
687 g_current_media_number = 1;
688 bkpinfo->postnuke_tarball[0] = '\0';
689 return (res);
690}
691
692/* From busybox under GPLv2 */
693#ifndef HAVE_MKDTEMP
694/* This is now actually part of POSIX.1, but was only added in 2008 */
695char* mkdtemp(char *template)
696{
697 if (mkstemp(template) == -1) {
698 return NULL;
699 }
700 unlink(template);
701 if (mkdir(template, 0700) != 0) {
702 return NULL;
703 }
704 return template;
705}
706#endif
707
708void setup_tmpdir(char *path) {
709
710 char *tmp = NULL;
711 char *p = NULL;
712
713 if (bkpinfo->tmpdir[0] != '\0') {
714 /* purging a potential old tmpdir */
715 if (chdir("/tmp")) {
716 // FIXME
717 }
718 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
719 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
720 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
721 } else {
722 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
723 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
724 }
725 paranoid_system(tmp);
726 mr_free(tmp);
727 }
728
729 /* Always take in account arg first, then env, then default */
730 if (path != NULL) {
731 mr_system("mkdir -p %s",path);
732 log_it("Created temporary directory %s", path);
733 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
734 } else if (getenv("TMPDIR")) {
735 mr_system("mkdir -p %s",getenv("TMPDIR"));
736 log_it("Created temporary directory %s", getenv("TMPDIR"));
737 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
738 } else if (getenv("MRTMP")) {
739 mr_system("mkdir -p %s",getenv("MRTMP"));
740 log_it("Created temporary directory %s", getenv("MRTMP"));
741 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
742 } else {
743 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
744 }
745 p = mkdtemp(tmp);
746 if (p == NULL) {
747 printf("Failed to create global tmp directory %s for Mondo.",tmp);
748 mr_free(tmp);
749 finish(-1);
750 }
751 strcpy(bkpinfo->tmpdir,p);
752 mr_free(tmp);
753
754 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
755
756 mr_system("mkdir -p %s/tmpfs", bkpinfo->tmpdir);
757}
758
759void setup_scratchdir(char *path) {
760
761 char *tmp = NULL;
762 char *p = NULL;
763
764 if (bkpinfo->scratchdir != NULL) {
765 /* purging a potential old scratchdir */
766 if (chdir("/tmp")) {
767 // FIXME
768 }
769 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
770 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
771 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
772 } else {
773 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
774 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
775 }
776 paranoid_system(tmp);
777 mr_free(tmp);
778 }
779
780 /* Always take in account arg first, then env, then default */
781 if (path != NULL) {
782 mr_system("mkdir -p %s",path);
783 log_it("Created scratch directory %s", path);
784 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
785 } else if (getenv("MRSCRATCH")) {
786 mr_system("mkdir -p %s",getenv("MRSCRATCH"));
787 log_it("Created scratch directory %s", getenv("MRSCRATCH"));
788 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
789 } else {
790 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
791 }
792 p = mkdtemp(tmp);
793 if (p == NULL) {
794 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
795 finish(-1);
796 }
797 strcpy(bkpinfo->scratchdir,p);
798 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
799 paranoid_free(tmp);
800
801 mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
802 paranoid_system(tmp);
803 mr_free(tmp);
804}
805
806
807/**
808 * Reset all fields of the backup information structure to a sensible default.
809 * @param bkpinfo The @c bkpinfo to reset.
810 */
811void reset_bkpinfo()
812{
813 assert(bkpinfo != NULL);
814 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
815
816 bkpinfo->media_device[0] = '\0';
817 bkpinfo->media_size = -1;
818 bkpinfo->boot_loader = '\0';
819 bkpinfo->boot_device = NULL;
820 bkpinfo->zip_exe[0] = '\0';
821 bkpinfo->zip_suffix[0] = '\0';
822 bkpinfo->image_devs[0] = '\0';
823 bkpinfo->compression_level = 3;
824 bkpinfo->use_lzo = FALSE;
825 bkpinfo->use_gzip = FALSE;
826 bkpinfo->use_lzma = FALSE;
827 bkpinfo->verify_data = FALSE;
828 bkpinfo->backup_data = FALSE;
829 bkpinfo->restore_data = FALSE;
830 bkpinfo->use_star = FALSE;
831 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
832
833 /* We need tmpdir as early as possible for further function calls */
834 bkpinfo->tmpdir[0] = '\0'; // Really setup after
835 bkpinfo->scratchdir[0] = '\0'; // Really setup after
836 setup_tmpdir(NULL);
837 setup_scratchdir(NULL);
838
839 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
840 if (bkpinfo->disaster_recovery) {
841 strcpy(bkpinfo->isodir, "/");
842 } else {
843 strcpy(bkpinfo->isodir, MONDO_CACHE);
844 }
845 strcpy(bkpinfo->prefix, STD_PREFIX);
846 bkpinfo->optimal_set_size = 0L;
847 bkpinfo->backup_media_type = none;
848 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
849 bkpinfo->exclude_paths = NULL;
850 bkpinfo->include_paths = NULL;
851 bkpinfo->exclude_devs = NULL;
852 bkpinfo->restore_path[0] = '\0';
853 bkpinfo->call_before_iso[0] = '\0';
854 bkpinfo->call_make_iso[0] = '\0';
855 bkpinfo->call_burn_iso[0] = '\0';
856 bkpinfo->call_after_iso[0] = '\0';
857 bkpinfo->kernel_path[0] = '\0';
858 bkpinfo->netfs_mount = NULL;
859 bkpinfo->netfs_proto = NULL;
860 bkpinfo->netfs_user = NULL;
861 bkpinfo->netfs_remote_dir = NULL;
862 bkpinfo->postnuke_tarball[0] = '\0';
863 bkpinfo->subdir = NULL;
864 bkpinfo->wipe_media_first = FALSE;
865 bkpinfo->differential = 0;
866 bkpinfo->please_dont_eject = FALSE;
867 bkpinfo->cdrw_speed = 0;
868 bkpinfo->manual_cd_tray = FALSE;
869 bkpinfo->nonbootable_backup = FALSE;
870 bkpinfo->make_cd_use_lilo = FALSE;
871 bkpinfo->use_obdr = FALSE;
872 bkpinfo->restore_mode = interactive;
873 bkpinfo->boot_type = BIOS;
874}
875
876
877/**
878 * Get the remaining free space (in MB) on @p partition.
879 * @param partition The partition to check free space on (either a device or a mountpoint).
880 * @return The free space on @p partition, in MB.
881 */
882long free_space_on_given_partition(char *partition)
883{
884 char *out_sz = NULL;
885 char *command = NULL;
886 long res;
887
888 assert_string_is_neither_NULL_nor_zerolength(partition);
889
890 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
891 if (system(command)) {
892 mr_free(command);
893 return (-1);
894 } // partition does not exist
895 mr_free(command);
896
897 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
898 out_sz = call_program_and_get_last_line_of_output(command);
899 mr_free(command);
900
901 if (strlen(out_sz) == 0) {
902 mr_free(out_sz);
903 return (-1);
904 } // error within df, probably
905 res = atol(out_sz);
906 mr_free(out_sz);
907 return (res);
908}
909
910
911
912/**
913 * Check the user's system for sanity. Checks performed:
914 * - make sure user has enough RAM (32mb required, 64mb recommended)
915 * - make sure user has enough free space in @c /
916 * - check kernel for ramdisk support
917 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
918 * - make sure CD-ROM is unmounted
919 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
920 *
921 * @return number of problems with the user's setup (0 for success)
922 */
923int some_basic_system_sanity_checks()
924{
925
926 /*@ buffers ************ */
927 char *tmp = NULL;
928
929 /*@ int's *************** */
930 int retval = 0;
931
932 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
933#ifndef __FreeBSD__
934 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
935 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
936 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
937 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
938 }
939 tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
940 if (atol(tmp) < 35000) {
941 retval++;
942 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
943 }
944 if (atol(tmp) < 66000) {
945 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
946 }
947 mr_free(tmp);
948#endif
949
950 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
951 retval++;
952 log_to_screen("Unable to find " MKE2FS_OR_NEWFS " in system path.");
953 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. :)");
954 }
955#ifndef __FreeBSD__
956 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
957 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
958 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
959 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
960 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?")) {
961 // retval++;
962 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
963 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
964 }
965 }
966 }
967#endif
968 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
969 if (system("which xorriso > /dev/null 2> /dev/null")) {
970 if (system("which genisoimage > /dev/null 2> /dev/null")) {
971 retval += whine_if_not_found("mkisofs");
972 }
973 }
974 if (system("which wodim > /dev/null 2> /dev/null")) {
975 retval += whine_if_not_found("cdrecord");
976 }
977 retval += whine_if_not_found("bzip2");
978 retval += whine_if_not_found("gzip");
979 retval += whine_if_not_found("awk");
980 retval += whine_if_not_found("md5sum");
981 retval += whine_if_not_found("strings");
982 retval += whine_if_not_found("mindi");
983 retval += whine_if_not_found("buffer");
984
985 // abort if Windows partition but no ms-sys and parted
986 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
987 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -Ew efi", 0)) {
988 log_to_screen("I think you have a EFI/UEFI partition.");
989 } else {
990 log_to_screen("I think you have a Windows 9x partition.");
991 }
992 retval += whine_if_not_found("parted");
993 }
994
995 if (!find_home_of_exe("cmp")) {
996 whine_if_not_found("cmp");
997 }
998 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
999 tmp = call_program_and_get_last_line_of_output("mount | grep -E 'cdr(om|w)'");
1000 if (strcmp("", tmp)) {
1001 if (strstr(tmp, "autofs")) {
1002 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1003 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
1004 log_to_screen("eject it. Thank you.");
1005 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1006 } else
1007 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1008 retval++;
1009 mr_free(tmp);
1010 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1011 }
1012 }
1013 mr_free(tmp);
1014
1015 run_program_and_log_output("cat /etc/fstab", 5);
1016#ifdef __FreeBSD__
1017 run_program_and_log_output("vinum printconfig", 5);
1018#else
1019 run_program_and_log_output("cat /etc/raidtab", 5);
1020#endif
1021
1022 if (run_program_and_log_output("mindi -V", 1)) {
1023 log_to_screen("Could not ascertain mindi's version number.");
1024 log_to_screen("You have not installed Mondo and/or Mindi properly.");
1025 log_to_screen("Please uninstall and reinstall them both.");
1026 fatal_error("Please reinstall Mondo and Mindi.");
1027 }
1028 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1029 if (run_program_and_log_output(tmp, 5)) {
1030 log_to_screen("%s failed for some reason.", tmp);
1031 mr_free(tmp);
1032 log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
1033 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
1034 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1035 retval++;
1036 }
1037 mr_free(tmp);
1038
1039 if (!run_program_and_log_output("mr-parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
1040 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1041 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
1042 }
1043
1044 if (retval) {
1045 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1046 } else {
1047 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1048 }
1049 return (retval);
1050}
1051
1052/**
1053 * Retrieve the line containing @p label from the config file.
1054 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1055 * @param label What to read from the file.
1056 * @param value Where to put it.
1057 * @return 0 for success, 1 for failure.
1058 */
1059int read_cfg_var(char *config_file, char *label, char *value)
1060{
1061 /*@ buffer ****************************************************** */
1062 char *command = NULL;
1063 char *tmp = NULL;
1064
1065 /*@ end vars *************************************************** */
1066
1067 assert_string_is_neither_NULL_nor_zerolength(config_file);
1068 assert_string_is_neither_NULL_nor_zerolength(label);
1069 if (!does_file_exist(config_file)) {
1070 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1071 value[0] = '\0';
1072 return (1);
1073 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1074 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1075 return (0);
1076 } else {
1077 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1078 tmp = call_program_and_get_last_line_of_output(command);
1079 strcpy(value, tmp);
1080 mr_free(command);
1081
1082 log_msg(4, "Configuration item %s is %s", label, value);
1083 if (strlen(value) == 0) {
1084 return (1);
1085 } else {
1086 return (0);
1087 }
1088 }
1089}
1090
1091
1092
1093/**
1094 * Remount @c supermount if it was unmounted earlier.
1095 */
1096void remount_supermounts_if_necessary()
1097{
1098 if (g_remount_cdrom_at_end) {
1099 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1100 }
1101}
1102
1103/**
1104 * Unmount @c supermount if it's mounted.
1105 */
1106void unmount_supermounts_if_necessary()
1107{
1108 if (run_program_and_log_output
1109 ("mount | grep cdrom | grep super", FALSE) == 0) {
1110 g_remount_cdrom_at_end = TRUE;
1111 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1112 }
1113}
1114
1115/**
1116 * Whether we had to stop autofs (if so, restart it at end).
1117 */
1118bool g_autofs_stopped = FALSE;
1119
1120/**
1121 * Path to the autofs initscript ("" if none exists).
1122 */
1123char g_autofs_exe[MAX_STR_LEN];
1124
1125/**
1126 * Autofs initscript in Xandros Linux distribution.
1127 */
1128#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1129
1130/**
1131 * Autofs initscript in most Linux distributions.
1132 */
1133#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1134
1135/**
1136 * If autofs is mounted, stop it (restart at end).
1137 */
1138void stop_autofs_if_necessary()
1139{
1140 char *tmp = NULL;
1141
1142 g_autofs_exe[0] = '\0';
1143 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1144 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1145 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1146 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1147 }
1148
1149 if (!g_autofs_exe[0]) {
1150 log_msg(3, "No autofs detected.");
1151 } else {
1152 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1153 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1154 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1155 if (run_program_and_log_output(tmp, 2)) {
1156 log_it("Failed to stop autofs - I assume it wasn't running");
1157 } else {
1158 g_autofs_stopped = TRUE;
1159 log_it("Stopped autofs OK");
1160 }
1161 mr_free(tmp);
1162 }
1163}
1164
1165/**
1166 * If autofs was stopped earlier, restart it.
1167 */
1168void restart_autofs_if_necessary()
1169{
1170 char *tmp = NULL;
1171
1172 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1173 log_msg(3, "No autofs detected.");
1174 return;
1175 }
1176 mr_asprintf(tmp, "%s start", g_autofs_exe);
1177 if (run_program_and_log_output(tmp, 2)) {
1178 log_it("Failed to start autofs");
1179 } else {
1180 g_autofs_stopped = FALSE;
1181 log_it("Started autofs OK");
1182 }
1183 mr_free(tmp);
1184}
1185
1186
1187/**
1188 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1189 */
1190void mount_boot_if_necessary() {
1191 char *tmp = NULL;
1192 char *command = NULL;
1193
1194 log_msg(1, "Started sub");
1195 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1196 g_boot_mountpt[0] = '\0';
1197 log_msg(4, "Done. Great. Setting command to something");
1198 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1199 log_msg(4, "Cool. Command = '%s'", command);
1200 tmp = call_program_and_get_last_line_of_output(command);
1201 mr_free(command);
1202
1203 log_msg(4, "tmp = '%s'", tmp);
1204 log_it("/boot is at %s according to /etc/fstab", tmp);
1205 mr_asprintf(command, "mount | grep -Ew '/boot'");
1206 mr_free(tmp);
1207
1208 tmp = call_program_and_get_last_line_of_output(command);
1209 mr_free(command);
1210
1211 if (!strcmp(tmp,"")) {
1212 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1213 if (!run_program_and_log_output("mount /boot", 5)) {
1214 strcpy(g_boot_mountpt, "/boot");
1215 log_msg(1, "Mounted /boot");
1216 } else {
1217 log_it("...ignored cos it's a label or uuid :-)");
1218 }
1219 } else {
1220 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1221 log_msg(3, "command = %s", command);
1222 if (run_program_and_log_output(command, 5)) {
1223 strcpy(g_boot_mountpt, tmp);
1224 mr_free(tmp);
1225 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1226
1227 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1228 if (run_program_and_log_output(tmp, 5)) {
1229 g_boot_mountpt[0] = '\0';
1230 log_msg(1, "Plan B");
1231 if (!run_program_and_log_output("mount /boot", 5)) {
1232 strcpy(g_boot_mountpt, "/boot");
1233 log_msg(1, "Plan B worked");
1234 } else {
1235 log_msg(1,
1236 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1237 }
1238 }
1239 }
1240 mr_free(command);
1241 }
1242 }
1243 mr_free(tmp);
1244 log_msg(1, "Ended sub");
1245}
1246
1247
1248/**
1249 * If we mounted /boot earlier, unmount it.
1250 */
1251void unmount_boot_if_necessary()
1252{
1253 char *tmp = NULL;
1254
1255 log_msg(3, "starting");
1256 if (g_boot_mountpt[0]) {
1257 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1258 if (run_program_and_log_output(tmp, 5)) {
1259 log_it("WARNING - unable to unmount /boot");
1260 }
1261 mr_free(tmp);
1262 }
1263 log_msg(3, "leaving");
1264}
1265
1266
1267
1268/**
1269 * Write a line to a configuration file. Writes a line of the form,
1270 * @c label @c value.
1271 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1272 * @param label What to call this bit of data you're writing.
1273 * @param value The bit of data you're writing.
1274 * @return 0 for success, 1 for failure.
1275 */
1276int write_cfg_var(char *config_file, char *label, char *value)
1277{
1278 /*@ buffers ***************************************************** */
1279 char *command = NULL;
1280 char *tempfile = NULL;
1281
1282
1283 /*@ end vars *************************************************** */
1284 assert_string_is_neither_NULL_nor_zerolength(config_file);
1285 assert_string_is_neither_NULL_nor_zerolength(label);
1286 assert(value != NULL);
1287 if (!does_file_exist(config_file)) {
1288 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1289 return (1);
1290 }
1291 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1292 if (does_file_exist(config_file)) {
1293 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1294 paranoid_system(command);
1295 mr_free(command);
1296 }
1297 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1298 paranoid_system(command);
1299 mr_free(command);
1300
1301 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1302 paranoid_system(command);
1303 mr_free(command);
1304 unlink(tempfile);
1305 mr_free(tempfile);
1306 return (0);
1307}
1308
1309
1310/**
1311 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1312 * information to the logfile.
1313 */
1314void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1315
1316 va_list args;
1317 static int depth = 0;
1318 FILE *fout;
1319
1320 if (depth > 5) {
1321 depth--;
1322 return;
1323 }
1324 depth++;
1325
1326 if (debug_level <= g_loglevel) {
1327 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1328 return;
1329 }
1330
1331 // add tabs to distinguish log levels
1332 if (debug_level > 0) {
1333 fprintf(fout, "DBG%d: ", debug_level);
1334 if (getpid() == g_main_pid)
1335 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1336 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1337 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1338 else
1339 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1340 } else {
1341 fprintf(fout, "INFO: ");
1342 }
1343 va_start(args, fmt);
1344 vfprintf(fout, fmt, args);
1345 va_end(args);
1346
1347 fprintf(fout, "\n");
1348 paranoid_fclose(fout);
1349 }
1350 depth--;
1351}
1352
1353/**
1354 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1355 */
1356void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1357
1358
1359/**
1360 * Allocate or free important globals, depending on @p mal.
1361 * @param mal If TRUE, malloc; if FALSE, free.
1362 */
1363void do_libmondo_global_strings_thing(int mal)
1364{
1365 if (mal) {
1366 malloc_string(g_boot_mountpt);
1367 malloc_string(g_mondo_home);
1368 malloc_string(g_serial_string);
1369 malloc_string(g_magicdev_command);
1370 } else {
1371 paranoid_free(g_boot_mountpt);
1372 paranoid_free(g_mondo_home);
1373 paranoid_free(g_magicdev_command);
1374
1375 mr_free(g_serial_string);
1376 }
1377}
1378
1379/**
1380 * Allocate important globals.
1381 * @see do_libmondo_global_strings_thing
1382 */
1383void malloc_libmondo_global_strings(void)
1384{
1385 do_libmondo_global_strings_thing(1);
1386}
1387
1388/**
1389 * Free important globals.
1390 * @see do_libmondo_global_strings_thing
1391 */
1392void free_libmondo_global_strings(void)
1393{
1394 do_libmondo_global_strings_thing(0);
1395}
1396
1397
1398
1399/**
1400 * Stop @c magicdev if it's running.
1401 * The command used to start it is saved in @p g_magicdev_command.
1402 */
1403void stop_magicdev_if_necessary()
1404{
1405 char *tmp = NULL;
1406
1407 tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1408 strcpy(g_magicdev_command, tmp);
1409 if (g_magicdev_command[0]) {
1410 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1411 paranoid_system("killall magicdev");
1412 }
1413 mr_free(tmp);
1414}
1415
1416
1417/**
1418 * Restart magicdev if it was stopped.
1419 */
1420void restart_magicdev_if_necessary()
1421{
1422 char *tmp = NULL;
1423
1424 if (g_magicdev_command && g_magicdev_command[0]) {
1425 mr_asprintf(tmp, "%s &", g_magicdev_command);
1426 paranoid_system(tmp);
1427 mr_free(tmp);
1428 }
1429}
1430
1431/* @} - end of utilityGroup */
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