source: MondoRescue/branches/3.3/mondo/src/common/libmondo-tools.c@ 3665

Last change on this file since 3665 was 3665, checked in by Bruno Cornec, 7 years ago

Fix a bug when burning directly media to take back boot params (the recent changes in boot options management was only done for ISO images, not for physical media burnt).
  • Property svn:keywords set to Id
File size: 40.7 KB
Line 
1/*
2 $Id: libmondo-tools.c 3665 2017-06-06 18:20:32Z 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 3665 2017-06-06 18:20:32Z 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.
46 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
47bool g_cd_recovery = FALSE; ///< TRUE if we're making an "autonuke" backup.
48double g_kernel_version;
49
50/**
51 * The place where /boot is mounted.
52 */
53char *g_boot_mountpt = NULL;
54
55/**
56 * The location of Mondo's home directory.
57 */
58char *g_mondo_home = NULL;
59
60/**
61 * The serial string (used to differentiate between backups) of the current backup.
62 */
63extern char *g_serial_string;
64
65/**
66 * The location where tmpfs is mounted, or "" if it's not mounted.
67char *g_tmpfs_mountpt = NULL;
68 */
69char *g_magicdev_command = NULL;
70
71/**
72 * The default maximum level to log messages at or below.
73 */
74int g_loglevel = DEFAULT_DEBUG_LEVEL;
75
76/* @} - end of globalGroup */
77
78
79extern pid_t g_buffer_pid;
80extern pid_t g_main_pid;
81
82extern t_bkptype g_backup_media_type;
83
84extern bool am_I_in_disaster_recovery_mode(void);
85
86/*-----------------------------------------------------------*/
87
88
89/**
90 * @addtogroup utilityGroup
91 * @{
92 */
93/**
94 * Assertion handler. Prints a friendly message to the user,
95 * offering to ignore all, dump core, break to debugger,
96 * exit, or ignore. Intended to be used with an assert() macro.
97 *
98 * @param file The file in which the assertion triggered.
99 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
100 * @param line The line number of the assert() statement.
101 * @param exp The expression that failed (as a string).
102 */
103void _mondo_assert_fail(const char *file,
104 const char *function, int line, const char *exp)
105{
106 static int ignoring_assertions = 0;
107 bool is_valid = TRUE;
108
109 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line, function);
110 if (ignoring_assertions) {
111 log_it("Well, the user doesn't care...");
112 return;
113 }
114 if (!g_text_mode)
115 newtSuspend();
116 printf("ASSERTION FAILED: `%s'\n", exp);
117 printf("\tat %s:%d in %s\n\n", file, line, function);
118 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
119 do {
120 is_valid = TRUE;
121 switch (toupper(getchar())) {
122 case 'A': // ignore (A)ll
123 ignoring_assertions = 1;
124 break;
125 case 'B': // a(B)ort
126 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
127 raise(SIGABRT);
128 break; /* "can't get here" */
129 case 'D': // (D)ebug, aka asm("int 3")
130#ifdef __IA32__
131 __asm__ __volatile__("int $3"); // break to debugger
132#endif
133 break;
134 case 'E': // (E)xit
135 fatal_error("Failed assertion -- see above for details");
136 break; /* "can't get here" */
137 case 'I': // (I)gnore
138 break;
139 /* These next two work as follows:
140 the `default' catches the user's invalid choice and says so;
141 the '\n' catches the newline on the end and prints the prompt again.
142 */
143 case '\n':
144 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
145 break;
146 default:
147 is_valid = FALSE;
148 printf("Invalid choice.\n");
149 break;
150 }
151 } while (!is_valid);
152
153 if (ignoring_assertions) {
154 log_it("Ignoring ALL assertions from now on.");
155 } else {
156 log_it("Ignoring assertion: %s", exp);
157 }
158
159 getchar(); // skip \n
160
161 if (!g_text_mode)
162 newtResume();
163}
164
165/**
166 * Clean's up users' KDE desktops.
167 * @bug Details about this function are unknown.
168 */
169void clean_up_KDE_desktop_if_necessary(void)
170{
171 char *tmp = NULL;
172
173 mr_asprintf(tmp, "for i in `find /root /home -maxdepth 2 -type d -name Desktop -maxdepth 2`; do file=$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");
174 run_program_and_log_output(tmp, 5);
175 mr_free(tmp);
176}
177
178
179/**
180 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
181 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
182 *
183 * @param home_sz String to store the home directory ("" if it could not be found).
184 * @return 0 for success, nonzero for failure.
185 */
186int find_and_store_mondoarchives_home(char *home_sz)
187{
188 assert(home_sz != NULL);
189 strcpy(home_sz, MONDO_SHARE);
190 return (0);
191}
192
193
194char *get_architecture(void) {
195#ifdef __IA32__
196# ifdef __X86_64__
197 return ("x86_64");
198# else
199 return ("i386");
200# endif
201#endif
202#ifdef __IA64__
203 return ("ia64");
204#endif
205 return ("unknown");
206}
207
208
209char *get_uname_m(void) {
210
211 struct utsname utsn;
212 char *tmp = NULL;
213
214 uname(&utsn);
215 mr_asprintf(tmp, "%s", utsn.machine);
216 return (tmp);
217}
218
219
220
221double get_kernel_version(void)
222{
223 char *p = NULL;
224 char *tmp = NULL;
225 double d;
226#ifdef __FreeBSD__
227 // JOSH - FIXME :)
228 d = 5.2; // :-)
229#else
230 tmp = call_program_and_get_last_line_of_output("uname -r");
231 p = strchr(tmp, '.');
232 if (p) {
233 p = strchr(++p, '.');
234 if (p) {
235 while (*p) {
236 *p = *(p + 1);
237 p++;
238 }
239 }
240 }
241 d = atof(tmp);
242 mr_free(tmp);
243#endif
244 log_msg(1, "g_kernel_version = %f", d);
245 return (d);
246}
247
248
249/**
250 * Get the current time.
251 * @return number of seconds since the epoch.
252 */
253long get_time()
254{
255 return (long) time((void *) 0);
256}
257
258
259/**
260 * Initialize a RAID volume structure, setting fields to zero. The
261 * actual hard drive is unaffected.
262 *
263 * @param raidrec The RAID volume structure to initialize.
264 * @note This function is system dependent.
265 */
266#ifdef __FreeBSD__
267void initialize_raidrec(struct vinum_volume *raidrec)
268{
269 int i, j;
270 raidrec->volname[0] = '\0';
271 raidrec->plexes = 0;
272 for (i = 0; i < 9; ++i) {
273 raidrec->plex[i].raidlevel = -1;
274 raidrec->plex[i].stripesize = 0;
275 raidrec->plex[i].subdisks = 0;
276 for (j = 0; j < 9; ++j) {
277 strcpy(raidrec->plex[i].sd[j].which_device, "");
278 }
279 }
280}
281#else
282void initialize_raidrec(struct raid_device_record *raidrec)
283{
284 assert(raidrec != NULL);
285 raidrec->raid_device[0] = '\0';
286 raidrec->raid_level = -9;
287 raidrec->persistent_superblock = 1;
288 raidrec->chunk_size = 64;
289 raidrec->parity = -1;
290 raidrec->data_disks.entries = 0;
291 raidrec->spare_disks.entries = 0;
292 raidrec->parity_disks.entries = 0;
293 raidrec->failed_disks.entries = 0;
294 raidrec->additional_vars.entries = 0;
295}
296#endif
297
298
299
300
301/**
302 * Insert modules that Mondo requires.
303 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
304 * @c msdosfs and @c ext2fs for FreeBSD.
305 */
306void insmod_crucial_modules(void)
307{
308#ifdef __FreeBSD__
309 paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
310 paranoid_system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
311#else
312 paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
313#endif
314}
315
316/* compute the final options for bootable media, considering the comand and the boot type */
317char *mr_compute_uefi_string(char *isofs_cmd) {
318
319 char *uefistr = NULL;
320 char *mondo_mkisofs_sz = NULL;
321
322 /* real media */
323 if (strstr(isofs_cmd,"growisofs")) {
324 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
325 } else {
326 /* iso image */
327 if (bkpinfo->boot_type == UEFI) {
328 if (strstr(isofs_cmd,"xorriso")) {
329 /* xorriso needs another '-' before efi-boot */
330 mr_asprintf(uefistr, "%s -%s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
331 } else {
332 mr_asprintf(uefistr, "%s %s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
333 }
334 } else {
335 mr_asprintf(uefistr, "%s",MONDO_MKISOFS_CMS);
336 }
337 mr_asprintf(mondo_mkisofs_sz, "%s%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX, uefistr);
338 }
339
340 return(mondo_mkisofs_sz);
341}
342
343/**
344 * Finish configuring the backup information structure. Call this function
345 * to set the parameters that depend on those that can be given on the command
346 * line.
347 *
348 * @param bkpinfo The backup information structure. Fields modified/used:
349 * - Used: @c bkpinfo->backup_data
350 * - Used: @c bkpinfo->backup_media_type
351 * - Used: @c bkpinfo->cdrw_speed
352 * - Used: @c bkpinfo->compression_level
353 * - Used: @c bkpinfo->include_paths
354 * - Used: @c bkpinfo->prefix
355 * - Used: @c bkpinfo->isodir
356 * - Used: @c bkpinfo->manual_cd_tray
357 * - Used: @c bkpinfo->make_cd_use_lilo
358 * - Used: @c bkpinfo->media_device
359 * - Used: @c bkpinfo->netfs_mount
360 * - Used: @c bkpinfo->nonbootable_backup
361 * - Used: @c bkpinfo->scratchdir
362 * - Used: @c bkpinfo->tmpdir
363 * - Used: @c bkpinfo->use_lzo
364 * - Modified: @c bkpinfo->call_before_iso
365 * - Modified: @c bkpinfo->call_make_iso
366 * - Modified: @c bkpinfo->optimal_set_size
367 * - Modified: @c bkpinfo->zip_exe
368 * - Modified: @c bkpinfo->zip_suffix
369 *
370 * @return number of errors, or 0 for success.
371 * @note Also creates directories that are specified in the @c bkpinfo structure but
372 * do not exist.
373 */
374int post_param_configuration()
375{
376 char *extra_cdrom_params = NULL;
377 char *mondo_mkisofs_sz = NULL;
378 char *command = NULL;
379 char *isofs_cmd = NULL;
380 int retval = 0;
381 char *cdr_exe = NULL;
382 char *tmp = NULL;
383 char *call_before_iso_user = NULL;
384 char *iso_dev = NULL;
385 char *iso_mnt = NULL;
386 char *iso_tmp = NULL;
387 char *iso_dir = NULL;
388
389 assert(bkpinfo != NULL);
390
391 bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024L;
392
393 log_msg(1, "Post-param");
394 if (bkpinfo->backup_media_type == tape) {
395 if (whine_if_not_found("mt") == 1) {
396 fatal_error("Please install the mt command");
397 }
398 log_msg(1, "Tape");
399 if (bkpinfo->media_device == NULL) {
400 return(1);
401 }
402 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
403 log_msg(1, "tmp = '%s'", tmp);
404 if (run_program_and_log_output(tmp, 3)) {
405 mr_free(tmp);
406 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.");
407 }
408 mr_free(tmp);
409 }
410 if (bkpinfo->backup_media_type == iso)
411 make_hole_for_dir(bkpinfo->isodir);
412
413 run_program_and_log_output("uname -a", 5);
414 run_program_and_log_output("cat /etc/*-release", 5);
415 run_program_and_log_output("cat /etc/*issue*", 5);
416#ifdef __FreeBSD__
417#else
418 run_program_and_log_output("cat /proc/cpuinfo", 5);
419 /*
420 run_program_and_log_output("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
421 */
422#endif
423
424 if (bkpinfo->use_lzo) {
425 strcpy(bkpinfo->zip_exe, "lzop");
426 strcpy(bkpinfo->zip_suffix, "lzo");
427 } else if (bkpinfo->use_gzip) {
428 strcpy(bkpinfo->zip_exe, "gzip");
429 strcpy(bkpinfo->zip_suffix, "gz");
430 } else if (bkpinfo->use_lzma) {
431 strcpy(bkpinfo->zip_exe, "lzma");
432 strcpy(bkpinfo->zip_suffix, "lzma");
433 } else if (bkpinfo->compression_level != 0) {
434 strcpy(bkpinfo->zip_exe, "bzip2");
435 strcpy(bkpinfo->zip_suffix, "bz2");
436 } else {
437 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
438 }
439
440// DVD
441
442 if (bkpinfo->backup_media_type == dvd) {
443 if (find_home_of_exe("growisofs")) {
444 mr_asprintf(cdr_exe, "growisofs");
445 } // unlikely to be used
446 else {
447 fatal_error("Please install growisofs.");
448 }
449 if (bkpinfo->nonbootable_backup) {
450 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
451 } else if
452#ifdef __FreeBSD__
453 (TRUE)
454#else
455 (bkpinfo->make_cd_use_lilo)
456#endif
457#ifdef __IA64__
458 {
459 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
460 }
461#else
462 {
463 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
464 }
465#endif
466 else {
467 mondo_mkisofs_sz = mr_compute_uefi_string(cdr_exe);
468 }
469 if (bkpinfo->manual_cd_tray) {
470 fatal_error("Manual CD tray + DVD not supported yet.");
471 // -m isn't supported by growisofs, BTW...
472 } else {
473 sprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
474 }
475 mr_free(mondo_mkisofs_sz);
476 if (getenv ("SUDO_COMMAND")) {
477 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
478 tmp = call_program_and_get_last_line_of_output(command);
479 mr_free(command);
480 if (!strcmp(tmp, "1")) {
481 mr_free(tmp);
482 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
483 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
484 }
485 mr_free(tmp);
486 }
487 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
488 } // end of DVD code
489
490// CD-R or CD-RW
491 if (bkpinfo->backup_media_type == cdrw
492 || bkpinfo->backup_media_type == cdr) {
493 if (!bkpinfo->manual_cd_tray) {
494 mr_asprintf(extra_cdrom_params, "-waiti ");
495 }
496 if (bkpinfo->backup_media_type == cdrw) {
497 mr_asprintf(extra_cdrom_params, "blank=fast ");
498 }
499 if (extra_cdrom_params == NULL) {
500 // If not initialized earlier, do it now
501 mr_asprintf(extra_cdrom_params, " ");
502 }
503 if (find_home_of_exe("cdrecord")) {
504 mr_asprintf(cdr_exe, "cdrecord");
505 } else if (find_home_of_exe("dvdrecord")) {
506 mr_asprintf(cdr_exe, "dvdrecord");
507 } else {
508 fatal_error("Please install either cdrecord or dvdrecord.");
509 }
510 if (find_home_of_exe("xorriso")) {
511 mr_asprintf(isofs_cmd, "%s", MONDO_XORRISO_CMD);
512 } else if (find_home_of_exe("genisoimage")) {
513 mr_asprintf(isofs_cmd, "%s", MONDO_GENISOIMAGE_CMD);
514 } else {
515 mr_asprintf(isofs_cmd, "%s", MONDO_MKISOFS_CMD);
516 }
517 if (bkpinfo->nonbootable_backup) {
518 mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
519 } else if
520#ifdef __FreeBSD__
521 (TRUE)
522#else
523 (bkpinfo->make_cd_use_lilo)
524#endif
525#ifdef __IA64__
526 {
527 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
528 }
529#else
530 {
531 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
532 }
533#endif
534 else {
535 mondo_mkisofs_sz = mr_compute_uefi_string(isofs_cmd);
536 }
537 mr_free(isofs_cmd);
538
539 if (bkpinfo->manual_cd_tray) {
540 if (bkpinfo->call_before_iso[0] == '\0') {
541 sprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
542 } else {
543 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
544 sprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
545 mr_free(call_before_iso_user);
546 }
547 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
548 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);
549 } else {
550 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);
551 }
552 mr_free(cdr_exe);
553 mr_free(mondo_mkisofs_sz);
554 mr_free(extra_cdrom_params);
555 } // end of CD code
556
557 if (bkpinfo->backup_media_type == iso) {
558
559/* Break up isodir into iso_mnt and iso_dir
560 * These will be used along with iso-dev at restore time
561 * to locate the ISOs where ever they're mounted
562 */
563
564 log_it("isodir = %s", bkpinfo->isodir);
565 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
566 log_it("command = %s", command);
567 iso_dev = call_program_and_get_last_line_of_output(command);
568 log_it("res of it = %s", iso_dev);
569 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
570 write_one_liner_data_file(tmp, iso_dev);
571 mr_free(tmp);
572 mr_free(command);
573
574 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
575 mr_free(iso_dev);
576
577 log_it("command = %s", command);
578 iso_mnt = call_program_and_get_last_line_of_output(command);
579 log_it("res of it = %s", iso_mnt);
580 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
581 write_one_liner_data_file(tmp, iso_mnt);
582 mr_free(tmp);
583 mr_free(command);
584
585 log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
586 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
587 if (strlen(iso_tmp) < strlen(iso_mnt)) {
588 mr_asprintf(iso_dir, "%s", "");
589 } else {
590 // If iso_mnt is only / then iso_dir is the full dir
591 // (the formula bellow doesn't work in this case)
592 if (strcmp(iso_mnt, "/") == 0) {
593 mr_asprintf(iso_dir, "%s", iso_tmp);
594 // else it's a part of iso_tmp
595 } else {
596 mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
597 }
598 }
599 mr_free(iso_mnt);
600 mr_free(iso_tmp);
601
602 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
603 write_one_liner_data_file(tmp, iso_dir);
604 mr_free(tmp);
605
606 log_it("iso-dir: %s", iso_dir);
607 mr_free(iso_dir);
608
609 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
610 write_one_liner_data_file(tmp, bkpinfo->prefix);
611 mr_free(tmp);
612
613 log_it("iso-prefix: %s", bkpinfo->prefix);
614
615/* End patch */
616 } // end of iso code
617
618 if (bkpinfo->backup_media_type == netfs) {
619 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
620 write_one_liner_data_file(tmp, bkpinfo->prefix);
621 mr_free(tmp);
622
623 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
624 write_one_liner_data_file(tmp, bkpinfo->isodir);
625 mr_free(tmp);
626
627 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
628 write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
629 mr_free(tmp);
630
631 if (bkpinfo->netfs_mount) {
632 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
633 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
634 mr_free(tmp);
635 } else {
636 log_it("netfs_mount is NULL");
637 retval++;
638 }
639 }
640
641 log_it("Finished processing incoming params");
642 if (retval) {
643 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
644 }
645 if (bkpinfo->include_paths == NULL) {
646 mr_asprintf(bkpinfo->include_paths, "/");
647 }
648 g_backup_media_type = bkpinfo->backup_media_type;
649 return (retval);
650}
651
652
653
654/**
655 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
656 * Seeds the random-number generator, loads important modules, checks the sanity
657 * of the user's Linux distribution, and deletes logfile.
658 * @param bkpinfo The backup information structure. Will be initialized.
659 * @return number of errors (0 for success)
660 */
661int pre_param_configuration()
662{
663 int res = 0;
664 char *tmp = NULL;
665
666 make_hole_for_dir(MNT_CDROM);
667 assert(bkpinfo != NULL);
668 srandom((unsigned long) (time(NULL)));
669 insmod_crucial_modules();
670 if (bkpinfo->disaster_recovery) {
671 if (!does_nonMS_partition_exist()) {
672 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
673 }
674 }
675
676 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
677 run_program_and_log_output(tmp, FALSE);
678 paranoid_free(tmp);
679 if (find_and_store_mondoarchives_home(g_mondo_home)) {
680 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");
681 res++;
682 return (res);
683 }
684 res += some_basic_system_sanity_checks();
685 if (res) {
686 log_it("Your distribution did not pass Mondo's sanity test.");
687 }
688 g_current_media_number = 1;
689 bkpinfo->postnuke_tarball[0] = '\0';
690 return (res);
691}
692
693/* From busybox under GPLv2 */
694#ifndef HAVE_MKDTEMP
695/* This is now actually part of POSIX.1, but was only added in 2008 */
696char* mkdtemp(char *template)
697{
698 if (mkstemp(template) == -1) {
699 return NULL;
700 }
701 unlink(template);
702 if (mkdir(template, 0700) != 0) {
703 return NULL;
704 }
705 return template;
706}
707#endif
708
709void setup_tmpdir(char *path) {
710
711 char *tmp = NULL;
712 char *p = NULL;
713
714 if (bkpinfo->tmpdir[0] != '\0') {
715 /* purging a potential old tmpdir */
716 if (chdir("/tmp")) {
717 // FIXME
718 }
719 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
720 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
721 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
722 } else {
723 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
724 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
725 }
726 paranoid_system(tmp);
727 mr_free(tmp);
728 }
729
730 /* Always take in account arg first, then env, then default */
731 if (path != NULL) {
732 mr_system("mkdir -p %s",path);
733 log_it("Created temporary directory %s", path);
734 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
735 } else if (getenv("TMPDIR")) {
736 mr_system("mkdir -p %s",getenv("TMPDIR"));
737 log_it("Created temporary directory %s", getenv("TMPDIR"));
738 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
739 } else if (getenv("MRTMP")) {
740 mr_system("mkdir -p %s",getenv("MRTMP"));
741 log_it("Created temporary directory %s", getenv("MRTMP"));
742 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
743 } else {
744 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
745 }
746 p = mkdtemp(tmp);
747 if (p == NULL) {
748 printf("Failed to create global tmp directory %s for Mondo.",tmp);
749 mr_free(tmp);
750 finish(-1);
751 }
752 strcpy(bkpinfo->tmpdir,p);
753 mr_free(tmp);
754
755 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
756
757 mr_system("mkdir -p %s/tmpfs", bkpinfo->tmpdir);
758}
759
760void setup_scratchdir(char *path) {
761
762 char *tmp = NULL;
763 char *p = NULL;
764
765 if (bkpinfo->scratchdir != NULL) {
766 /* purging a potential old scratchdir */
767 if (chdir("/tmp")) {
768 // FIXME
769 }
770 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
771 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
772 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
773 } else {
774 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
775 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
776 }
777 paranoid_system(tmp);
778 mr_free(tmp);
779 }
780
781 /* Always take in account arg first, then env, then default */
782 if (path != NULL) {
783 mr_system("mkdir -p %s",path);
784 log_it("Created scratch directory %s", path);
785 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
786 } else if (getenv("MRSCRATCH")) {
787 mr_system("mkdir -p %s",getenv("MRSCRATCH"));
788 log_it("Created scratch directory %s", getenv("MRSCRATCH"));
789 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
790 } else {
791 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
792 }
793 p = mkdtemp(tmp);
794 if (p == NULL) {
795 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
796 finish(-1);
797 }
798 strcpy(bkpinfo->scratchdir,p);
799 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
800 paranoid_free(tmp);
801
802 mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
803 paranoid_system(tmp);
804 mr_free(tmp);
805}
806
807
808/**
809 * Reset all fields of the backup information structure to a sensible default.
810 * @param bkpinfo The @c bkpinfo to reset.
811 */
812void reset_bkpinfo()
813{
814 assert(bkpinfo != NULL);
815 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
816
817 bkpinfo->media_device[0] = '\0';
818 bkpinfo->media_size = -1;
819 bkpinfo->boot_loader = '\0';
820 bkpinfo->boot_device = NULL;
821 bkpinfo->zip_exe[0] = '\0';
822 bkpinfo->zip_suffix[0] = '\0';
823 bkpinfo->image_devs[0] = '\0';
824 bkpinfo->compression_level = 3;
825 bkpinfo->use_lzo = FALSE;
826 bkpinfo->use_gzip = FALSE;
827 bkpinfo->use_lzma = FALSE;
828 bkpinfo->verify_data = FALSE;
829 bkpinfo->backup_data = FALSE;
830 bkpinfo->restore_data = FALSE;
831 bkpinfo->use_star = FALSE;
832 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
833
834 /* We need tmpdir as early as possible for further function calls */
835 bkpinfo->tmpdir[0] = '\0'; // Really setup after
836 bkpinfo->scratchdir[0] = '\0'; // Really setup after
837 setup_tmpdir(NULL);
838 setup_scratchdir(NULL);
839
840 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
841 if (bkpinfo->disaster_recovery) {
842 strcpy(bkpinfo->isodir, "/");
843 } else {
844 strcpy(bkpinfo->isodir, MONDO_CACHE);
845 }
846 strcpy(bkpinfo->prefix, STD_PREFIX);
847 bkpinfo->optimal_set_size = 0L;
848 bkpinfo->backup_media_type = none;
849 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
850 bkpinfo->exclude_paths = NULL;
851 bkpinfo->include_paths = NULL;
852 bkpinfo->exclude_devs = NULL;
853 bkpinfo->restore_path[0] = '\0';
854 bkpinfo->call_before_iso[0] = '\0';
855 bkpinfo->call_make_iso[0] = '\0';
856 bkpinfo->call_burn_iso[0] = '\0';
857 bkpinfo->call_after_iso[0] = '\0';
858 bkpinfo->kernel_path[0] = '\0';
859 bkpinfo->netfs_mount = NULL;
860 bkpinfo->netfs_proto = NULL;
861 bkpinfo->netfs_user = NULL;
862 bkpinfo->netfs_remote_dir = NULL;
863 bkpinfo->postnuke_tarball[0] = '\0';
864 bkpinfo->subdir = NULL;
865 bkpinfo->wipe_media_first = FALSE;
866 bkpinfo->differential = 0;
867 bkpinfo->please_dont_eject = FALSE;
868 bkpinfo->cdrw_speed = 0;
869 bkpinfo->manual_cd_tray = FALSE;
870 bkpinfo->nonbootable_backup = FALSE;
871 bkpinfo->make_cd_use_lilo = FALSE;
872 bkpinfo->use_obdr = FALSE;
873 bkpinfo->restore_mode = interactive;
874 bkpinfo->boot_type = BIOS;
875}
876
877
878/**
879 * Get the remaining free space (in MB) on @p partition.
880 * @param partition The partition to check free space on (either a device or a mountpoint).
881 * @return The free space on @p partition, in MB.
882 */
883long free_space_on_given_partition(char *partition)
884{
885 char *out_sz = NULL;
886 char *command = NULL;
887 long res;
888
889 assert_string_is_neither_NULL_nor_zerolength(partition);
890
891 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
892 if (system(command)) {
893 mr_free(command);
894 return (-1);
895 } // partition does not exist
896 mr_free(command);
897
898 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
899 out_sz = call_program_and_get_last_line_of_output(command);
900 mr_free(command);
901
902 if (strlen(out_sz) == 0) {
903 mr_free(out_sz);
904 return (-1);
905 } // error within df, probably
906 res = atol(out_sz);
907 mr_free(out_sz);
908 return (res);
909}
910
911
912
913/**
914 * Check the user's system for sanity. Checks performed:
915 * - make sure user has enough RAM (32mb required, 64mb recommended)
916 * - make sure user has enough free space in @c /
917 * - check kernel for ramdisk support
918 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
919 * - make sure CD-ROM is unmounted
920 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
921 *
922 * @return number of problems with the user's setup (0 for success)
923 */
924int some_basic_system_sanity_checks()
925{
926
927 /*@ buffers ************ */
928 char *tmp = NULL;
929
930 /*@ int's *************** */
931 int retval = 0;
932
933 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
934#ifndef __FreeBSD__
935 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
936 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
937 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
938 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
939 }
940 tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
941 if (atol(tmp) < 35000) {
942 retval++;
943 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
944 }
945 if (atol(tmp) < 66000) {
946 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
947 }
948 mr_free(tmp);
949#endif
950
951 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
952 retval++;
953 log_to_screen("Unable to find " MKE2FS_OR_NEWFS " in system path.");
954 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. :)");
955 }
956#ifndef __FreeBSD__
957 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
958 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
959 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
960 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
961 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?")) {
962 // retval++;
963 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
964 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
965 }
966 }
967 }
968#endif
969 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
970 if (system("which xorriso > /dev/null 2> /dev/null")) {
971 if (system("which genisoimage > /dev/null 2> /dev/null")) {
972 retval += whine_if_not_found("mkisofs");
973 }
974 }
975 if (system("which wodim > /dev/null 2> /dev/null")) {
976 retval += whine_if_not_found("cdrecord");
977 }
978 retval += whine_if_not_found("bzip2");
979 retval += whine_if_not_found("gzip");
980 retval += whine_if_not_found("awk");
981 retval += whine_if_not_found("md5sum");
982 retval += whine_if_not_found("strings");
983 retval += whine_if_not_found("mindi");
984 retval += whine_if_not_found("buffer");
985
986 // abort if Windows partition but no ms-sys and parted
987 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
988 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -Ew efi", 0)) {
989 log_to_screen("I think you have a EFI/UEFI partition.");
990 } else {
991 log_to_screen("I think you have a Windows 9x partition.");
992 }
993 retval += whine_if_not_found("parted");
994 }
995
996 if (!find_home_of_exe("cmp")) {
997 whine_if_not_found("cmp");
998 }
999 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1000 tmp = call_program_and_get_last_line_of_output("mount | grep -E 'cdr(om|w)'");
1001 if (strcmp("", tmp)) {
1002 if (strstr(tmp, "autofs")) {
1003 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1004 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
1005 log_to_screen("eject it. Thank you.");
1006 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1007 } else
1008 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1009 retval++;
1010 mr_free(tmp);
1011 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1012 }
1013 }
1014 mr_free(tmp);
1015
1016 run_program_and_log_output("cat /etc/fstab", 5);
1017#ifdef __FreeBSD__
1018 run_program_and_log_output("vinum printconfig", 5);
1019#else
1020 run_program_and_log_output("cat /etc/raidtab", 5);
1021#endif
1022
1023 if (run_program_and_log_output("mindi -V", 1)) {
1024 log_to_screen("Could not ascertain mindi's version number.");
1025 log_to_screen("You have not installed Mondo and/or Mindi properly.");
1026 log_to_screen("Please uninstall and reinstall them both.");
1027 fatal_error("Please reinstall Mondo and Mindi.");
1028 }
1029 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1030 if (run_program_and_log_output(tmp, 5)) {
1031 log_to_screen("%s failed for some reason.", tmp);
1032 mr_free(tmp);
1033 log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
1034 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
1035 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1036 retval++;
1037 }
1038 mr_free(tmp);
1039
1040 if (!run_program_and_log_output("mr-parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
1041 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1042 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
1043 }
1044
1045 if (retval) {
1046 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1047 } else {
1048 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1049 }
1050 return (retval);
1051}
1052
1053/**
1054 * Retrieve the line containing @p label from the config file.
1055 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1056 * @param label What to read from the file.
1057 * @param value Where to put it.
1058 * @return 0 for success, 1 for failure.
1059 */
1060int read_cfg_var(char *config_file, char *label, char *value)
1061{
1062 /*@ buffer ****************************************************** */
1063 char *command = NULL;
1064 char *tmp = NULL;
1065
1066 /*@ end vars *************************************************** */
1067
1068 assert_string_is_neither_NULL_nor_zerolength(config_file);
1069 assert_string_is_neither_NULL_nor_zerolength(label);
1070 if (!does_file_exist(config_file)) {
1071 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1072 value[0] = '\0';
1073 return (1);
1074 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1075 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1076 return (0);
1077 } else {
1078 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1079 tmp = call_program_and_get_last_line_of_output(command);
1080 strcpy(value, tmp);
1081 mr_free(command);
1082
1083 log_msg(4, "Configuration item %s is %s", label, value);
1084 if (strlen(value) == 0) {
1085 return (1);
1086 } else {
1087 return (0);
1088 }
1089 }
1090}
1091
1092
1093
1094/**
1095 * Remount @c supermount if it was unmounted earlier.
1096 */
1097void remount_supermounts_if_necessary()
1098{
1099 if (g_remount_cdrom_at_end) {
1100 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1101 }
1102 if (g_remount_floppy_at_end) {
1103 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1104 }
1105}
1106
1107/**
1108 * Unmount @c supermount if it's mounted.
1109 */
1110void unmount_supermounts_if_necessary()
1111{
1112 if (run_program_and_log_output
1113 ("mount | grep cdrom | grep super", FALSE) == 0) {
1114 g_remount_cdrom_at_end = TRUE;
1115 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1116 }
1117 if (run_program_and_log_output
1118 ("mount | grep floppy | grep super", FALSE) == 0) {
1119 g_remount_floppy_at_end = TRUE;
1120 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1121 }
1122}
1123
1124/**
1125 * Whether we had to stop autofs (if so, restart it at end).
1126 */
1127bool g_autofs_stopped = FALSE;
1128
1129/**
1130 * Path to the autofs initscript ("" if none exists).
1131 */
1132char g_autofs_exe[MAX_STR_LEN];
1133
1134/**
1135 * Autofs initscript in Xandros Linux distribution.
1136 */
1137#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1138
1139/**
1140 * Autofs initscript in most Linux distributions.
1141 */
1142#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1143
1144/**
1145 * If autofs is mounted, stop it (restart at end).
1146 */
1147void stop_autofs_if_necessary()
1148{
1149 char *tmp = NULL;
1150
1151 g_autofs_exe[0] = '\0';
1152 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1153 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1154 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1155 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1156 }
1157
1158 if (!g_autofs_exe[0]) {
1159 log_msg(3, "No autofs detected.");
1160 } else {
1161 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1162 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1163 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1164 if (run_program_and_log_output(tmp, 2)) {
1165 log_it("Failed to stop autofs - I assume it wasn't running");
1166 } else {
1167 g_autofs_stopped = TRUE;
1168 log_it("Stopped autofs OK");
1169 }
1170 mr_free(tmp);
1171 }
1172}
1173
1174/**
1175 * If autofs was stopped earlier, restart it.
1176 */
1177void restart_autofs_if_necessary()
1178{
1179 char *tmp = NULL;
1180
1181 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1182 log_msg(3, "No autofs detected.");
1183 return;
1184 }
1185 mr_asprintf(tmp, "%s start", g_autofs_exe);
1186 if (run_program_and_log_output(tmp, 2)) {
1187 log_it("Failed to start autofs");
1188 } else {
1189 g_autofs_stopped = FALSE;
1190 log_it("Started autofs OK");
1191 }
1192 mr_free(tmp);
1193}
1194
1195
1196/**
1197 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1198 */
1199void mount_boot_if_necessary() {
1200 char *tmp = NULL;
1201 char *command = NULL;
1202
1203 log_msg(1, "Started sub");
1204 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1205 g_boot_mountpt[0] = '\0';
1206 log_msg(4, "Done. Great. Setting command to something");
1207 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1208 log_msg(4, "Cool. Command = '%s'", command);
1209 tmp = call_program_and_get_last_line_of_output(command);
1210 mr_free(command);
1211
1212 log_msg(4, "tmp = '%s'", tmp);
1213 log_it("/boot is at %s according to /etc/fstab", tmp);
1214 mr_asprintf(command, "mount | grep -Ew '/boot'");
1215 mr_free(tmp);
1216
1217 tmp = call_program_and_get_last_line_of_output(command);
1218 mr_free(command);
1219
1220 if (!strcmp(tmp,"")) {
1221 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1222 if (!run_program_and_log_output("mount /boot", 5)) {
1223 strcpy(g_boot_mountpt, "/boot");
1224 log_msg(1, "Mounted /boot");
1225 } else {
1226 log_it("...ignored cos it's a label or uuid :-)");
1227 }
1228 } else {
1229 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1230 log_msg(3, "command = %s", command);
1231 if (run_program_and_log_output(command, 5)) {
1232 strcpy(g_boot_mountpt, tmp);
1233 mr_free(tmp);
1234 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1235
1236 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1237 if (run_program_and_log_output(tmp, 5)) {
1238 g_boot_mountpt[0] = '\0';
1239 log_msg(1, "Plan B");
1240 if (!run_program_and_log_output("mount /boot", 5)) {
1241 strcpy(g_boot_mountpt, "/boot");
1242 log_msg(1, "Plan B worked");
1243 } else {
1244 log_msg(1,
1245 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1246 }
1247 }
1248 }
1249 mr_free(command);
1250 }
1251 }
1252 mr_free(tmp);
1253 log_msg(1, "Ended sub");
1254}
1255
1256
1257/**
1258 * If we mounted /boot earlier, unmount it.
1259 */
1260void unmount_boot_if_necessary()
1261{
1262 char *tmp = NULL;
1263
1264 log_msg(3, "starting");
1265 if (g_boot_mountpt[0]) {
1266 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1267 if (run_program_and_log_output(tmp, 5)) {
1268 log_it("WARNING - unable to unmount /boot");
1269 }
1270 mr_free(tmp);
1271 }
1272 log_msg(3, "leaving");
1273}
1274
1275
1276
1277/**
1278 * Write a line to a configuration file. Writes a line of the form,
1279 * @c label @c value.
1280 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1281 * @param label What to call this bit of data you're writing.
1282 * @param value The bit of data you're writing.
1283 * @return 0 for success, 1 for failure.
1284 */
1285int write_cfg_var(char *config_file, char *label, char *value)
1286{
1287 /*@ buffers ***************************************************** */
1288 char *command = NULL;
1289 char *tempfile = NULL;
1290
1291
1292 /*@ end vars *************************************************** */
1293 assert_string_is_neither_NULL_nor_zerolength(config_file);
1294 assert_string_is_neither_NULL_nor_zerolength(label);
1295 assert(value != NULL);
1296 if (!does_file_exist(config_file)) {
1297 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1298 return (1);
1299 }
1300 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1301 if (does_file_exist(config_file)) {
1302 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1303 paranoid_system(command);
1304 mr_free(command);
1305 }
1306 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1307 paranoid_system(command);
1308 mr_free(command);
1309
1310 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1311 paranoid_system(command);
1312 mr_free(command);
1313 unlink(tempfile);
1314 mr_free(tempfile);
1315 return (0);
1316}
1317
1318
1319/**
1320 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1321 * information to the logfile.
1322 */
1323void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1324
1325 va_list args;
1326 static int depth = 0;
1327 FILE *fout;
1328
1329 if (depth > 5) {
1330 depth--;
1331 return;
1332 }
1333 depth++;
1334
1335 if (debug_level <= g_loglevel) {
1336 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1337 return;
1338 }
1339
1340 // add tabs to distinguish log levels
1341 if (debug_level > 0) {
1342 fprintf(fout, "DBG%d: ", debug_level);
1343 if (getpid() == g_main_pid)
1344 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1345 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1346 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1347 else
1348 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1349 } else {
1350 fprintf(fout, "INFO: ");
1351 }
1352 va_start(args, fmt);
1353 vfprintf(fout, fmt, args);
1354 va_end(args);
1355
1356 fprintf(fout, "\n");
1357 paranoid_fclose(fout);
1358 }
1359 depth--;
1360}
1361
1362/**
1363 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1364 */
1365void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1366
1367
1368/**
1369 * Allocate or free important globals, depending on @p mal.
1370 * @param mal If TRUE, malloc; if FALSE, free.
1371 */
1372void do_libmondo_global_strings_thing(int mal)
1373{
1374 if (mal) {
1375 malloc_string(g_boot_mountpt);
1376 malloc_string(g_mondo_home);
1377 malloc_string(g_serial_string);
1378 malloc_string(g_magicdev_command);
1379 } else {
1380 paranoid_free(g_boot_mountpt);
1381 paranoid_free(g_mondo_home);
1382 paranoid_free(g_magicdev_command);
1383
1384 mr_free(g_serial_string);
1385 }
1386}
1387
1388/**
1389 * Allocate important globals.
1390 * @see do_libmondo_global_strings_thing
1391 */
1392void malloc_libmondo_global_strings(void)
1393{
1394 do_libmondo_global_strings_thing(1);
1395}
1396
1397/**
1398 * Free important globals.
1399 * @see do_libmondo_global_strings_thing
1400 */
1401void free_libmondo_global_strings(void)
1402{
1403 do_libmondo_global_strings_thing(0);
1404}
1405
1406
1407
1408/**
1409 * Stop @c magicdev if it's running.
1410 * The command used to start it is saved in @p g_magicdev_command.
1411 */
1412void stop_magicdev_if_necessary()
1413{
1414 char *tmp = NULL;
1415
1416 tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1417 strcpy(g_magicdev_command, tmp);
1418 if (g_magicdev_command[0]) {
1419 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1420 paranoid_system("killall magicdev");
1421 }
1422 mr_free(tmp);
1423}
1424
1425
1426/**
1427 * Restart magicdev if it was stopped.
1428 */
1429void restart_magicdev_if_necessary()
1430{
1431 char *tmp = NULL;
1432
1433 if (g_magicdev_command && g_magicdev_command[0]) {
1434 mr_asprintf(tmp, "%s &", g_magicdev_command);
1435 paranoid_system(tmp);
1436 mr_free(tmp);
1437 }
1438}
1439
1440/* @} - end of utilityGroup */
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