source: MondoRescue/branches/3.3/mondo/src/common/libmondo-tools.c@ 3833

Last change on this file since 3833 was 3833, checked in by Bruno Cornec, 4 months ago

manages tmpdir dynamically
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File size: 40.3 KB
Line 
1/*
2 $Id: libmondo-tools.c 3833 2024-03-05 00:24:48Z 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 3833 2024-03-05 00:24:48Z 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 */
57extern char *g_mondo_home;
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 command 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 mr_asprintf(bkpinfo->zip_exe, "%s", "lzop");
425 mr_asprintf(bkpinfo->zip_suffix, "%s", "lzo");
426 } else if (bkpinfo->use_gzip) {
427 mr_asprintf(bkpinfo->zip_exe, "%s", "gzip");
428 mr_asprintf(bkpinfo->zip_suffix, "%s", "gz");
429 } else if (bkpinfo->use_lzma) {
430 mr_asprintf(bkpinfo->zip_exe, "%s", "xz");
431 mr_asprintf(bkpinfo->zip_suffix, "%s", "xz");
432 } else if (bkpinfo->compression_level != 0) {
433 mr_asprintf(bkpinfo->zip_exe, "%s", "bzip2");
434 mr_asprintf(bkpinfo->zip_suffix, "%s", "bz2");
435 } else {
436 mr_free(bkpinfo->zip_exe);
437 mr_free(bkpinfo->zip_suffix);
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 mr_asprintf(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 == NULL) {
541 mr_asprintf(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 mr_free(bkpinfo->call_before_iso);
545 mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
546 mr_free(call_before_iso_user);
547 }
548 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
549 mr_asprintf(bkpinfo->call_make_iso, "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed, bkpinfo->tmpdir);
550 } else {
551 mr_asprintf(bkpinfo->call_make_iso, "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -", mondo_mkisofs_sz, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed);
552 }
553 mr_free(cdr_exe);
554 mr_free(mondo_mkisofs_sz);
555 mr_free(extra_cdrom_params);
556 } // end of CD code
557
558 if (bkpinfo->backup_media_type == iso) {
559
560/* Break up isodir into iso_mnt and iso_dir
561 * These will be used along with iso-dev at restore time
562 * to locate the ISOs where ever they're mounted
563 */
564
565 log_it("isodir = %s", bkpinfo->isodir);
566 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
567 log_it("command = %s", command);
568 iso_dev = call_program_and_get_last_line_of_output(command);
569 log_it("res of it = %s", iso_dev);
570 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
571 write_one_liner_data_file(tmp, iso_dev);
572 mr_free(tmp);
573 mr_free(command);
574
575 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
576 mr_free(iso_dev);
577
578 log_it("command = %s", command);
579 iso_mnt = call_program_and_get_last_line_of_output(command);
580 log_it("res of it = %s", iso_mnt);
581 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
582 write_one_liner_data_file(tmp, iso_mnt);
583 mr_free(tmp);
584 mr_free(command);
585
586 log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
587 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
588 if (strlen(iso_tmp) < strlen(iso_mnt)) {
589 mr_asprintf(iso_dir, "%s", "");
590 } else {
591 // If iso_mnt is only / then iso_dir is the full dir
592 // (the formula bellow doesn't work in this case)
593 if (strcmp(iso_mnt, "/") == 0) {
594 mr_asprintf(iso_dir, "%s", iso_tmp);
595 // else it's a part of iso_tmp
596 } else {
597 mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
598 }
599 }
600 mr_free(iso_mnt);
601 mr_free(iso_tmp);
602
603 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
604 write_one_liner_data_file(tmp, iso_dir);
605 mr_free(tmp);
606
607 log_it("iso-dir: %s", iso_dir);
608 mr_free(iso_dir);
609
610 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
611 write_one_liner_data_file(tmp, bkpinfo->prefix);
612 mr_free(tmp);
613
614 log_it("iso-prefix: %s", bkpinfo->prefix);
615
616/* End patch */
617 } // end of iso code
618
619 if (bkpinfo->backup_media_type == netfs) {
620 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
621 write_one_liner_data_file(tmp, bkpinfo->prefix);
622 mr_free(tmp);
623
624 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
625 write_one_liner_data_file(tmp, bkpinfo->isodir);
626 mr_free(tmp);
627
628 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
629 write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
630 mr_free(tmp);
631
632 if (bkpinfo->netfs_mount) {
633 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
634 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
635 mr_free(tmp);
636 } else {
637 log_it("netfs_mount is NULL");
638 retval++;
639 }
640 }
641
642 log_it("Finished processing incoming params");
643 if (retval) {
644 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
645 }
646 if (bkpinfo->include_paths == NULL) {
647 mr_asprintf(bkpinfo->include_paths, "/");
648 }
649 g_backup_media_type = bkpinfo->backup_media_type;
650 return (retval);
651}
652
653
654
655/**
656 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
657 * Seeds the random-number generator, loads important modules, checks the sanity
658 * of the user's Linux distribution, and deletes logfile.
659 * @param bkpinfo The backup information structure. Will be initialized.
660 * @return number of errors (0 for success)
661 */
662int pre_param_configuration()
663{
664 int res = 0;
665 char *tmp = NULL;
666
667 make_hole_for_dir(MNT_CDROM);
668 assert(bkpinfo != NULL);
669 srandom((unsigned long) (time(NULL)));
670 insmod_crucial_modules();
671 if (bkpinfo->disaster_recovery) {
672 if (!does_nonMS_partition_exist()) {
673 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
674 }
675 }
676
677 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
678 run_program_and_log_output(tmp, FALSE);
679 paranoid_free(tmp);
680 if (find_and_store_mondoarchives_home(g_mondo_home)) {
681 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");
682 res++;
683 return (res);
684 }
685 res += some_basic_system_sanity_checks();
686 if (res) {
687 log_it("Your distribution did not pass Mondo's sanity test.");
688 }
689 g_current_media_number = 1;
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
713 if (bkpinfo->tmpdir != NULL) {
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 bkpinfo->tmpdir = mkdtemp(tmp);
746 if (bkpinfo->tmpdir == NULL) {
747 printf("Failed to create global tmp directory %s for Mondo.",tmp);
748 mr_free(tmp);
749 finish(-1);
750 }
751 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
752 mr_system("mkdir -p %s/tmpfs", bkpinfo->tmpdir);
753}
754
755void setup_scratchdir(char *path) {
756
757 char *tmp = NULL;
758 char *p = NULL;
759
760 if (bkpinfo->scratchdir != NULL) {
761 /* purging a potential old scratchdir */
762 if (chdir("/tmp")) {
763 // FIXME
764 }
765 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
766 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
767 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
768 } else {
769 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
770 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
771 }
772 paranoid_system(tmp);
773 mr_free(tmp);
774 }
775
776 /* Always take in account arg first, then env, then default */
777 if (path != NULL) {
778 mr_system("mkdir -p %s",path);
779 log_it("Created scratch directory %s", path);
780 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
781 } else if (getenv("MRSCRATCH")) {
782 mr_system("mkdir -p %s",getenv("MRSCRATCH"));
783 log_it("Created scratch directory %s", getenv("MRSCRATCH"));
784 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
785 } else {
786 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
787 }
788 p = mkdtemp(tmp);
789 if (p == NULL) {
790 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
791 finish(-1);
792 }
793 strcpy(bkpinfo->scratchdir,p);
794 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
795 paranoid_free(tmp);
796
797 mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
798 paranoid_system(tmp);
799 mr_free(tmp);
800}
801
802
803/**
804 * Reset all fields of the backup information structure to a sensible default.
805 * @param bkpinfo The @c bkpinfo to reset.
806 */
807void reset_bkpinfo()
808{
809 assert(bkpinfo != NULL);
810 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
811
812 bkpinfo->media_device = NULL;
813 bkpinfo->media_size = -1;
814 bkpinfo->boot_loader = '\0';
815 bkpinfo->boot_device = NULL;
816 bkpinfo->zip_exe = NULL;
817 bkpinfo->zip_suffix = NULL;
818 bkpinfo->image_devs = NULL;
819 bkpinfo->compression_level = 3;
820 bkpinfo->use_lzo = FALSE;
821 bkpinfo->use_gzip = FALSE;
822 bkpinfo->use_lzma = FALSE;
823 bkpinfo->verify_data = FALSE;
824 bkpinfo->backup_data = FALSE;
825 bkpinfo->restore_data = FALSE;
826 bkpinfo->use_star = FALSE;
827 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
828
829 /* We need tmpdir as early as possible for further function calls */
830 bkpinfo->tmpdir = NULL; // Really setup after
831 bkpinfo->scratchdir[0] = '\0'; // Really setup after
832 setup_tmpdir(NULL);
833 setup_scratchdir(NULL);
834
835 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
836 if (bkpinfo->disaster_recovery) {
837 strcpy(bkpinfo->isodir, "/");
838 } else {
839 strcpy(bkpinfo->isodir, MONDO_CACHE);
840 }
841 strcpy(bkpinfo->prefix, STD_PREFIX);
842 bkpinfo->optimal_set_size = 0L;
843 bkpinfo->backup_media_type = none;
844 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
845 bkpinfo->exclude_paths = NULL;
846 bkpinfo->include_paths = NULL;
847 bkpinfo->exclude_devs = NULL;
848 bkpinfo->restore_path = NULL;
849 bkpinfo->call_before_iso = NULL;
850 bkpinfo->call_make_iso = NULL;
851 bkpinfo->call_burn_iso = NULL;
852 bkpinfo->call_after_iso = NULL;
853 bkpinfo->kernel_path = NULL;
854 bkpinfo->netfs_mount = NULL;
855 bkpinfo->netfs_proto = NULL;
856 bkpinfo->netfs_user = NULL;
857 bkpinfo->netfs_remote_dir = NULL;
858 bkpinfo->postnuke_tarball = NULL;
859 bkpinfo->subdir = NULL;
860 bkpinfo->wipe_media_first = FALSE;
861 bkpinfo->differential = 0;
862 bkpinfo->please_dont_eject = FALSE;
863 bkpinfo->cdrw_speed = 0;
864 bkpinfo->manual_cd_tray = FALSE;
865 bkpinfo->nonbootable_backup = FALSE;
866 bkpinfo->make_cd_use_lilo = FALSE;
867 bkpinfo->use_obdr = FALSE;
868 bkpinfo->restore_mode = interactive;
869 bkpinfo->boot_type = BIOS;
870}
871
872
873/**
874 * Get the remaining free space (in MB) on @p partition.
875 * @param partition The partition to check free space on (either a device or a mountpoint).
876 * @return The free space on @p partition, in MB.
877 */
878long free_space_on_given_partition(char *partition)
879{
880 char *out_sz = NULL;
881 char *command = NULL;
882 long res;
883
884 assert_string_is_neither_NULL_nor_zerolength(partition);
885
886 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
887 if (system(command)) {
888 mr_free(command);
889 return (-1);
890 } // partition does not exist
891 mr_free(command);
892
893 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
894 out_sz = call_program_and_get_last_line_of_output(command);
895 mr_free(command);
896
897 if (strlen(out_sz) == 0) {
898 mr_free(out_sz);
899 return (-1);
900 } // error within df, probably
901 res = atol(out_sz);
902 mr_free(out_sz);
903 return (res);
904}
905
906
907
908/**
909 * Check the user's system for sanity. Checks performed:
910 * - make sure user has enough RAM (32mb required, 64mb recommended)
911 * - make sure user has enough free space in @c /
912 * - check kernel for ramdisk support
913 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
914 * - make sure CD-ROM is unmounted
915 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
916 *
917 * @return number of problems with the user's setup (0 for success)
918 */
919int some_basic_system_sanity_checks()
920{
921
922 /*@ buffers ************ */
923 char *tmp = NULL;
924
925 /*@ int's *************** */
926 int retval = 0;
927
928 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
929#ifndef __FreeBSD__
930 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
931 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
932 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
933 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
934 }
935 tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
936 if (atol(tmp) < 35000) {
937 retval++;
938 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
939 }
940 if (atol(tmp) < 66000) {
941 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
942 }
943 mr_free(tmp);
944#endif
945
946 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
947 retval++;
948 log_to_screen("Unable to find " MKE2FS_OR_NEWFS " in system path.");
949 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. :)");
950 }
951#ifndef __FreeBSD__
952 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
953 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
954 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
955 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
956 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?")) {
957 // retval++;
958 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
959 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
960 }
961 }
962 }
963#endif
964 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
965 if (system("which xorriso > /dev/null 2> /dev/null")) {
966 if (system("which genisoimage > /dev/null 2> /dev/null")) {
967 retval += whine_if_not_found("mkisofs");
968 }
969 }
970 if (system("which wodim > /dev/null 2> /dev/null")) {
971 retval += whine_if_not_found("cdrecord");
972 }
973 retval += whine_if_not_found("bzip2");
974 retval += whine_if_not_found("gzip");
975 retval += whine_if_not_found("awk");
976 retval += whine_if_not_found("md5sum");
977 retval += whine_if_not_found("strings");
978 retval += whine_if_not_found("mindi");
979 retval += whine_if_not_found("buffer");
980
981 // abort if Windows partition but no ms-sys and parted
982 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
983 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -Ew efi", 0)) {
984 log_to_screen("I think you have a EFI/UEFI partition.");
985 } else {
986 log_to_screen("I think you have a Windows 9x partition.");
987 }
988 retval += whine_if_not_found("parted");
989 }
990
991 if (!find_home_of_exe("cmp")) {
992 whine_if_not_found("cmp");
993 }
994 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
995 tmp = call_program_and_get_last_line_of_output("mount | grep -E 'cdr(om|w)'");
996 if (strcmp("", tmp)) {
997 if (strstr(tmp, "autofs")) {
998 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
999 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
1000 log_to_screen("eject it. Thank you.");
1001 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1002 } else
1003 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1004 retval++;
1005 mr_free(tmp);
1006 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1007 }
1008 }
1009 mr_free(tmp);
1010
1011 run_program_and_log_output("cat /etc/fstab", 5);
1012#ifdef __FreeBSD__
1013 run_program_and_log_output("vinum printconfig", 5);
1014#else
1015 run_program_and_log_output("cat /etc/raidtab", 5);
1016#endif
1017
1018 if (run_program_and_log_output("mindi -V", 1)) {
1019 log_to_screen("Could not ascertain mindi's version number.");
1020 log_to_screen("You have not installed Mondo and/or Mindi properly.");
1021 log_to_screen("Please uninstall and reinstall them both.");
1022 fatal_error("Please reinstall Mondo and Mindi.");
1023 }
1024 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1025 if (run_program_and_log_output(tmp, 5)) {
1026 log_to_screen("%s failed for some reason.", tmp);
1027 mr_free(tmp);
1028 log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
1029 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
1030 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1031 retval++;
1032 }
1033 mr_free(tmp);
1034
1035 if (!run_program_and_log_output("mr-parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
1036 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1037 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
1038 }
1039
1040 if (retval) {
1041 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1042 } else {
1043 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1044 }
1045 return (retval);
1046}
1047
1048/**
1049 * Retrieve the line containing @p label from the config file.
1050 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1051 * @param label What to read from the file.
1052 * @param value Where to put it.
1053 * @return 0 for success, 1 for failure.
1054 */
1055int read_cfg_var(char *config_file, char *label, char *value)
1056{
1057 /*@ buffer ****************************************************** */
1058 char *command = NULL;
1059 char *tmp = NULL;
1060
1061 /*@ end vars *************************************************** */
1062
1063 assert_string_is_neither_NULL_nor_zerolength(config_file);
1064 assert_string_is_neither_NULL_nor_zerolength(label);
1065 if (!does_file_exist(config_file)) {
1066 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1067 value[0] = '\0';
1068 return (1);
1069 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1070 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1071 return (0);
1072 } else {
1073 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1074 tmp = call_program_and_get_last_line_of_output(command);
1075 strcpy(value, tmp);
1076 mr_free(command);
1077
1078 log_msg(4, "Configuration item %s is %s", label, value);
1079 if (strlen(value) == 0) {
1080 return (1);
1081 } else {
1082 return (0);
1083 }
1084 }
1085}
1086
1087
1088
1089/**
1090 * Remount @c supermount if it was unmounted earlier.
1091 */
1092void remount_supermounts_if_necessary()
1093{
1094 if (g_remount_cdrom_at_end) {
1095 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1096 }
1097}
1098
1099/**
1100 * Unmount @c supermount if it's mounted.
1101 */
1102void unmount_supermounts_if_necessary()
1103{
1104 if (run_program_and_log_output
1105 ("mount | grep cdrom | grep super", FALSE) == 0) {
1106 g_remount_cdrom_at_end = TRUE;
1107 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1108 }
1109}
1110
1111/**
1112 * Whether we had to stop autofs (if so, restart it at end).
1113 */
1114bool g_autofs_stopped = FALSE;
1115
1116/**
1117 * Path to the autofs initscript ("" if none exists).
1118 */
1119char g_autofs_exe[MAX_STR_LEN];
1120
1121/**
1122 * Autofs initscript in Xandros Linux distribution.
1123 */
1124#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1125
1126/**
1127 * Autofs initscript in most Linux distributions.
1128 */
1129#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1130
1131/**
1132 * If autofs is mounted, stop it (restart at end).
1133 */
1134void stop_autofs_if_necessary()
1135{
1136 char *tmp = NULL;
1137
1138 g_autofs_exe[0] = '\0';
1139 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1140 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1141 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1142 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1143 }
1144
1145 if (!g_autofs_exe[0]) {
1146 log_msg(3, "No autofs detected.");
1147 } else {
1148 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1149 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1150 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1151 if (run_program_and_log_output(tmp, 2)) {
1152 log_it("Failed to stop autofs - I assume it wasn't running");
1153 } else {
1154 g_autofs_stopped = TRUE;
1155 log_it("Stopped autofs OK");
1156 }
1157 mr_free(tmp);
1158 }
1159}
1160
1161/**
1162 * If autofs was stopped earlier, restart it.
1163 */
1164void restart_autofs_if_necessary()
1165{
1166 char *tmp = NULL;
1167
1168 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1169 log_msg(3, "No autofs detected.");
1170 return;
1171 }
1172 mr_asprintf(tmp, "%s start", g_autofs_exe);
1173 if (run_program_and_log_output(tmp, 2)) {
1174 log_it("Failed to start autofs");
1175 } else {
1176 g_autofs_stopped = FALSE;
1177 log_it("Started autofs OK");
1178 }
1179 mr_free(tmp);
1180}
1181
1182
1183/**
1184 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1185 */
1186void mount_boot_if_necessary() {
1187 char *tmp = NULL;
1188 char *command = NULL;
1189
1190 log_msg(1, "Started sub");
1191 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1192 g_boot_mountpt[0] = '\0';
1193 log_msg(4, "Done. Great. Setting command to something");
1194 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1195 log_msg(4, "Cool. Command = '%s'", command);
1196 tmp = call_program_and_get_last_line_of_output(command);
1197 mr_free(command);
1198
1199 log_msg(4, "tmp = '%s'", tmp);
1200 log_it("/boot is at %s according to /etc/fstab", tmp);
1201 mr_asprintf(command, "mount | grep -Ew '/boot'");
1202 mr_free(tmp);
1203
1204 tmp = call_program_and_get_last_line_of_output(command);
1205 mr_free(command);
1206
1207 if (!strcmp(tmp,"")) {
1208 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1209 if (!run_program_and_log_output("mount /boot", 5)) {
1210 strcpy(g_boot_mountpt, "/boot");
1211 log_msg(1, "Mounted /boot");
1212 } else {
1213 log_it("...ignored cos it's a label or uuid :-)");
1214 }
1215 } else {
1216 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1217 log_msg(3, "command = %s", command);
1218 if (run_program_and_log_output(command, 5)) {
1219 strcpy(g_boot_mountpt, tmp);
1220 mr_free(tmp);
1221 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1222
1223 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1224 if (run_program_and_log_output(tmp, 5)) {
1225 g_boot_mountpt[0] = '\0';
1226 log_msg(1, "Plan B");
1227 if (!run_program_and_log_output("mount /boot", 5)) {
1228 strcpy(g_boot_mountpt, "/boot");
1229 log_msg(1, "Plan B worked");
1230 } else {
1231 log_msg(1,
1232 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1233 }
1234 }
1235 }
1236 mr_free(command);
1237 }
1238 }
1239 mr_free(tmp);
1240 log_msg(1, "Ended sub");
1241}
1242
1243
1244/**
1245 * If we mounted /boot earlier, unmount it.
1246 */
1247void unmount_boot_if_necessary()
1248{
1249 char *tmp = NULL;
1250
1251 log_msg(3, "starting");
1252 if (g_boot_mountpt[0]) {
1253 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1254 if (run_program_and_log_output(tmp, 5)) {
1255 log_it("WARNING - unable to unmount /boot");
1256 }
1257 mr_free(tmp);
1258 }
1259 log_msg(3, "leaving");
1260}
1261
1262
1263
1264/**
1265 * Write a line to a configuration file. Writes a line of the form,
1266 * @c label @c value.
1267 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1268 * @param label What to call this bit of data you're writing.
1269 * @param value The bit of data you're writing.
1270 * @return 0 for success, 1 for failure.
1271 */
1272int write_cfg_var(char *config_file, char *label, char *value)
1273{
1274 /*@ buffers ***************************************************** */
1275 char *command = NULL;
1276 char *tempfile = NULL;
1277
1278
1279 /*@ end vars *************************************************** */
1280 assert_string_is_neither_NULL_nor_zerolength(config_file);
1281 assert_string_is_neither_NULL_nor_zerolength(label);
1282 assert(value != NULL);
1283 if (!does_file_exist(config_file)) {
1284 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1285 return (1);
1286 }
1287 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1288 if (does_file_exist(config_file)) {
1289 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1290 paranoid_system(command);
1291 mr_free(command);
1292 }
1293 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1294 paranoid_system(command);
1295 mr_free(command);
1296
1297 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1298 paranoid_system(command);
1299 mr_free(command);
1300 unlink(tempfile);
1301 mr_free(tempfile);
1302 return (0);
1303}
1304
1305
1306/**
1307 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1308 * information to the logfile.
1309 */
1310void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1311
1312 va_list args;
1313 static int depth = 0;
1314 FILE *fout;
1315
1316 if (depth > 5) {
1317 depth--;
1318 return;
1319 }
1320 depth++;
1321
1322 if (debug_level <= g_loglevel) {
1323 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1324 return;
1325 }
1326
1327 // add tabs to distinguish log levels
1328 if (debug_level > 0) {
1329 fprintf(fout, "DBG%d: ", debug_level);
1330 if (getpid() == g_main_pid)
1331 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1332 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1333 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1334 else
1335 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1336 } else {
1337 fprintf(fout, "INFO: ");
1338 }
1339 va_start(args, fmt);
1340 vfprintf(fout, fmt, args);
1341 va_end(args);
1342
1343 fprintf(fout, "\n");
1344 paranoid_fclose(fout);
1345 }
1346 depth--;
1347}
1348
1349/**
1350 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1351 */
1352void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1353
1354
1355/**
1356 * Allocate or free important globals, depending on @p mal.
1357 * @param mal If TRUE, malloc; if FALSE, free.
1358 */
1359void do_libmondo_global_strings_thing(int mal)
1360{
1361 if (mal) {
1362 malloc_string(g_boot_mountpt);
1363 malloc_string(g_mondo_home);
1364 malloc_string(g_serial_string);
1365 malloc_string(g_magicdev_command);
1366 } else {
1367 paranoid_free(g_boot_mountpt);
1368 paranoid_free(g_mondo_home);
1369 paranoid_free(g_magicdev_command);
1370
1371 mr_free(g_serial_string);
1372 }
1373}
1374
1375/**
1376 * Allocate important globals.
1377 * @see do_libmondo_global_strings_thing
1378 */
1379void malloc_libmondo_global_strings(void)
1380{
1381 do_libmondo_global_strings_thing(1);
1382}
1383
1384/**
1385 * Free important globals.
1386 * @see do_libmondo_global_strings_thing
1387 */
1388void free_libmondo_global_strings(void)
1389{
1390 do_libmondo_global_strings_thing(0);
1391}
1392
1393
1394
1395/**
1396 * Stop @c magicdev if it's running.
1397 * The command used to start it is saved in @p g_magicdev_command.
1398 */
1399void stop_magicdev_if_necessary()
1400{
1401 char *tmp = NULL;
1402
1403 tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1404 strcpy(g_magicdev_command, tmp);
1405 if (g_magicdev_command[0]) {
1406 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1407 paranoid_system("killall magicdev");
1408 }
1409 mr_free(tmp);
1410}
1411
1412
1413/**
1414 * Restart magicdev if it was stopped.
1415 */
1416void restart_magicdev_if_necessary()
1417{
1418 char *tmp = NULL;
1419
1420 if (g_magicdev_command && g_magicdev_command[0]) {
1421 mr_asprintf(tmp, "%s &", g_magicdev_command);
1422 paranoid_system(tmp);
1423 mr_free(tmp);
1424 }
1425}
1426
1427/* @} - end of utilityGroup */
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