source: MondoRescue/branches/2.2.5/mondo/src/common/libmondo-tools.c@ 1747

Last change on this file since 1747 was 1747, checked in by Bruno Cornec, 16 years ago
  • Solve problem on tmpfs in restore init (Problem of inexistant symlink and busybox)
  • Create MONDO_CACHE and use it everywhere + creation at start
  • Property svn:keywords set to Id
File size: 45.1 KB
Line 
1/* libmondo-tools.c misc tools
2 $Id: libmondo-tools.c 1747 2007-10-30 12:18:55Z bruno $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36 /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44 is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66 a tape device AND it's already populated by /dev/{something}
67 ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71 and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116 to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143 to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152 it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154 whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156 from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160 then create a softlink from the former to the latter, to work
161 around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <stdlib.h>
185#include <netinet/in.h>
186#include <arpa/inet.h>
187#include <sys/utsname.h>
188
189/*@unused@*/
190//static char cvsid[] = "$Id: libmondo-tools.c 1747 2007-10-30 12:18:55Z bruno $";
191
192extern int g_tape_buffer_size_MB;
193extern char *g_serial_string;
194extern bool g_text_mode;
195extern int g_currentY;
196extern int g_current_media_number;
197extern char *MONDO_LOGFILE;
198
199/* Reference to global bkpinfo */
200extern struct s_bkpinfo *bkpinfo;
201
202/**
203 * @addtogroup globalGroup
204 * @{
205 */
206bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
207 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
208bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
209double g_kernel_version;
210
211/**
212 * The place where /boot is mounted.
213 */
214char *g_boot_mountpt = NULL;
215
216/**
217 * The location of Mondo's home directory.
218 */
219char *g_mondo_home = NULL;
220
221/**
222 * The serial string (used to differentiate between backups) of the current backup.
223 */
224char *g_serial_string = NULL;
225
226/**
227 * The location where tmpfs is mounted, or "" if it's not mounted.
228 */
229char *g_tmpfs_mountpt = NULL;
230char *g_magicdev_command = NULL;
231
232/**
233 * The default maximum level to log messages at or below.
234 */
235int g_loglevel = DEFAULT_DEBUG_LEVEL;
236
237/* @} - end of globalGroup */
238
239
240extern pid_t g_buffer_pid;
241extern pid_t g_main_pid;
242
243extern t_bkptype g_backup_media_type;
244
245extern bool am_I_in_disaster_recovery_mode(void);
246
247
248/**
249 * @addtogroup utilityGroup
250 * @{
251 */
252/**
253 * Assertion handler. Prints a friendly message to the user,
254 * offering to ignore all, dump core, break to debugger,
255 * exit, or ignore. Intended to be used with an assert() macro.
256 *
257 * @param file The file in which the assertion triggered.
258 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
259 * @param line The line number of the assert() statement.
260 * @param exp The expression that failed (as a string).
261 */
262void _mondo_assert_fail(const char *file,
263 const char *function, int line, const char *exp)
264{
265 static int ignoring_assertions = 0;
266 bool is_valid = TRUE;
267
268 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
269 function);
270 if (ignoring_assertions) {
271 log_it("Well, the user doesn't care...");
272 return;
273 }
274#ifndef _XWIN
275 if (!g_text_mode)
276 newtSuspend();
277#endif
278 printf("ASSERTION FAILED: `%s'\n", exp);
279 printf("\tat %s:%d in %s\n\n", file, line, function);
280 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
281 do {
282 is_valid = TRUE;
283 switch (toupper(getchar())) {
284 case 'A': // ignore (A)ll
285 ignoring_assertions = 1;
286 break;
287 case 'B': // a(B)ort
288 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
289 raise(SIGABRT);
290 break; /* "can't get here" */
291 case 'D': // (D)ebug, aka asm("int 3")
292#ifdef __IA32__
293 __asm__ __volatile__("int $3"); // break to debugger
294#endif
295 break;
296 case 'E': // (E)xit
297 fatal_error("Failed assertion -- see above for details");
298 break; /* "can't get here" */
299 case 'I': // (I)gnore
300 break;
301 /* These next two work as follows:
302 the `default' catches the user's invalid choice and says so;
303 the '\n' catches the newline on the end and prints the prompt again.
304 */
305 case '\n':
306 printf
307 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
308 break;
309 default:
310 is_valid = FALSE;
311 printf("Invalid choice.\n");
312 break;
313 }
314 } while (!is_valid);
315
316 if (ignoring_assertions) {
317 log_it("Ignoring ALL assertions from now on.");
318 } else {
319 log_it("Ignoring assertion: %s", exp);
320 }
321
322 getchar(); // skip \n
323
324#ifndef _XWIN
325 if (!g_text_mode)
326 newtResume();
327#endif
328}
329
330/**
331 * Clean's up users' KDE desktops.
332 * @bug Details about this function are unknown.
333 */
334void clean_up_KDE_desktop_if_necessary(void)
335{
336 char *tmp;
337
338 malloc_string(tmp);
339 strcpy(tmp,
340 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
341file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
342awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
343else { print $0;};}' $file.old > $file ; fi ; done");
344 run_program_and_log_output(tmp, 5);
345 paranoid_free(tmp);
346}
347
348
349/**
350 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
351 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
352 *
353 * @param home_sz String to store the home directory ("" if it could not be found).
354 * @return 0 for success, nonzero for failure.
355 */
356int find_and_store_mondoarchives_home(char *home_sz)
357{
358 assert(home_sz != NULL);
359 strcpy(home_sz, MONDO_SHARE);
360 return (0);
361}
362
363
364char *get_architecture(void) {
365#ifdef __IA32__
366# ifdef __X86_64__
367 return ("x86_64");
368# else
369 return ("i386");
370# endif
371#endif
372#ifdef __IA64__
373 return ("ia64");
374#endif
375 return ("unknown");
376}
377
378
379char *get_uname_m(void) {
380
381 struct utsname utsn;
382 char *tmp = NULL;
383
384 uname(&utsn);
385 asprintf(&tmp, utsn.machine);
386 return (tmp);
387}
388
389
390
391double get_kernel_version(void)
392{
393 char *p, tmp[200];
394 double d;
395#ifdef __FreeBSD__
396 // JOSH - FIXME :)
397 d = 5.2; // :-)
398#else
399 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
400 p = strchr(tmp, '.');
401 if (p) {
402 p = strchr(++p, '.');
403 if (p) {
404 while (*p) {
405 *p = *(p + 1);
406 p++;
407 }
408 }
409 }
410// log_msg(1, "tmp = '%s'", tmp);
411 d = atof(tmp);
412#endif
413 log_msg(1, "g_kernel_version = %f", d);
414 return (d);
415}
416
417
418
419
420
421/**
422 * Get the current time.
423 * @return number of seconds since the epoch.
424 */
425long get_time()
426{
427 return (long) time((void *) 0);
428}
429
430
431
432
433
434
435
436/**
437 * Initialize a RAID volume structure, setting fields to zero. The
438 * actual hard drive is unaffected.
439 *
440 * @param raidrec The RAID volume structure to initialize.
441 * @note This function is system dependent.
442 */
443#ifdef __FreeBSD__
444void initialize_raidrec(struct vinum_volume *raidrec)
445{
446 int i, j;
447 raidrec->volname[0] = '\0';
448 raidrec->plexes = 0;
449 for (i = 0; i < 9; ++i) {
450 raidrec->plex[i].raidlevel = -1;
451 raidrec->plex[i].stripesize = 0;
452 raidrec->plex[i].subdisks = 0;
453 for (j = 0; j < 9; ++j) {
454 strcpy(raidrec->plex[i].sd[j].which_device, "");
455 }
456 }
457}
458#else
459void initialize_raidrec(struct raid_device_record *raidrec)
460{
461 assert(raidrec != NULL);
462 raidrec->raid_device[0] = '\0';
463 raidrec->raid_level = -9;
464 raidrec->persistent_superblock = 1;
465 raidrec->chunk_size = 64;
466 raidrec->parity = -1;
467 raidrec->data_disks.entries = 0;
468 raidrec->spare_disks.entries = 0;
469 raidrec->parity_disks.entries = 0;
470 raidrec->failed_disks.entries = 0;
471 raidrec->additional_vars.entries = 0;
472}
473#endif
474
475
476
477
478/**
479 * Insert modules that Mondo requires.
480 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
481 * @c msdosfs and @c ext2fs for FreeBSD.
482 */
483void insmod_crucial_modules(void)
484{
485#ifdef __FreeBSD__
486 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
487 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
488#else
489 system("modprobe -a msdos vfat loop &> /dev/null");
490#endif
491}
492
493
494/**
495 * Log a trace message to the trace file.
496 * @bug This function seems orphaned. Please remove.
497 */
498void log_trace(char *o)
499{
500 /*@ pointers **************************************************** */
501 FILE *fout;
502
503 /*@ buffers ***************************************************** */
504 char output[MAX_STR_LEN];
505
506 /*@ int ****************************************************** */
507 int i;
508
509 /*@ end vars *************************************************** */
510
511 if (o[0] == '\0') {
512 return;
513 }
514 strcpy(output, o);
515 i = (int) strlen(output);
516 if (i <= 0) {
517 return;
518 }
519 if (output[i - 1] < 32) {
520 output[i - 1] = '\0';
521 }
522 if (g_text_mode
523 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
524 printf("%s\n", output);
525 }
526
527 fout = fopen(MONDO_TRACEFILE, "a");
528 if (fout) {
529 fprintf(fout, "%s\n", output);
530 paranoid_fclose(fout);
531 } else {
532 log_OS_error("Cannot write to tracefile");
533 }
534}
535
536
537
538
539
540/**
541 * Finish configuring the backup information structure. Call this function
542 * to set the parameters that depend on those that can be given on the command
543 * line.
544 *
545 * @param bkpinfo The backup information structure. Fields modified/used:
546 * - Used: @c bkpinfo->backup_data
547 * - Used: @c bkpinfo->backup_media_type
548 * - Used: @c bkpinfo->cdrw_speed
549 * - Used: @c bkpinfo->compression_level
550 * - Used: @c bkpinfo->include_paths
551 * - Used: @c bkpinfo->prefix
552 * - Used: @c bkpinfo->isodir
553 * - Used: @c bkpinfo->manual_cd_tray
554 * - Used: @c bkpinfo->make_cd_use_lilo
555 * - Used: @c bkpinfo->media_device
556 * - Used: @c bkpinfo->nfs_mount
557 * - Used: @c bkpinfo->nonbootable_backup
558 * - Used: @c bkpinfo->scratchdir
559 * - Used: @c bkpinfo->tmpdir
560 * - Used: @c bkpinfo->use_lzo
561 * - Modified: @c bkpinfo->call_before_iso
562 * - Modified: @c bkpinfo->call_make_iso
563 * - Modified: @c bkpinfo->optimal_set_size
564 * - Modified: @c bkpinfo->zip_exe
565 * - Modified: @c bkpinfo->zip_suffix
566 *
567 * @return number of errors, or 0 for success.
568 * @note Also creates directories that are specified in the @c bkpinfo structure but
569 * do not exist.
570 */
571int post_param_configuration()
572{
573 char *extra_cdrom_params;
574 char *mondo_mkisofs_sz;
575 char *command;
576 char *mtpt;
577 char *hostname, *ip_address;
578 int retval = 0;
579 long avm = 0;
580 char *colon;
581 char *cdr_exe;
582 char *tmp;
583 char call_before_iso_user[MAX_STR_LEN] = "\0";
584 int rdsiz_MB;
585 char *iso_dev;
586 char *iso_mnt;
587 char *iso_tmp;
588 char *iso_path;
589
590 assert(bkpinfo != NULL);
591 malloc_string(extra_cdrom_params);
592 malloc_string(mondo_mkisofs_sz);
593 malloc_string(command);
594 malloc_string(mtpt);
595 malloc_string(hostname);
596 malloc_string(ip_address);
597 malloc_string(cdr_exe);
598 malloc_string(tmp);
599 malloc_string(iso_dev);
600 malloc_string(iso_mnt);
601 malloc_string(iso_tmp);
602 malloc_string(iso_path);
603 bkpinfo->optimal_set_size =
604 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
605 1024;
606
607 log_msg(1, "Foo");
608 if (bkpinfo->backup_media_type == tape) {
609 log_msg(1, "Bar");
610 sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
611 log_msg(1, "tmp = '%s'", tmp);
612 if (run_program_and_log_output(tmp, 3)) {
613 fatal_error
614 ("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.");
615 }
616 }
617 make_hole_for_dir(bkpinfo->scratchdir);
618 if (bkpinfo->backup_media_type == iso)
619 make_hole_for_dir(bkpinfo->isodir);
620
621 run_program_and_log_output("uname -a", 5);
622 run_program_and_log_output("cat /etc/*-release", 5);
623 run_program_and_log_output("cat /etc/*issue*", 5);
624 sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
625 sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
626 paranoid_system(command);
627 rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
628#ifdef __FreeBSD__
629 strcpy(tmp,
630 call_program_and_get_last_line_of_output
631 ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
632 avm += atol(tmp);
633 strcpy(tmp,
634 call_program_and_get_last_line_of_output
635 ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
636 avm += atol(tmp);
637 sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
638 g_tmpfs_mountpt);
639#else
640 strcpy(tmp,
641 call_program_and_get_last_line_of_output
642 ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
643 avm += atol(tmp);
644 sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
645 g_tmpfs_mountpt, rdsiz_MB, 'm');
646 run_program_and_log_output("cat /proc/cpuinfo", 5);
647 run_program_and_log_output
648 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
649 5);
650#endif
651 if (avm / 1024 > rdsiz_MB * 3) {
652 if (run_program_and_log_output(command, 5)) {
653 g_tmpfs_mountpt[0] = '\0';
654 log_it("Failed to mount tmpfs");
655 } else {
656 log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
657 }
658 } else {
659 g_tmpfs_mountpt[0] = '\0';
660 log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
661 }
662
663 if (bkpinfo->use_lzo) {
664 strcpy(bkpinfo->zip_exe, "lzop");
665 strcpy(bkpinfo->zip_suffix, "lzo");
666 } else if (bkpinfo->use_gzip) {
667 strcpy(bkpinfo->zip_exe, "gzip");
668 strcpy(bkpinfo->zip_suffix, "gz");
669 } else if (bkpinfo->compression_level != 0) {
670 strcpy(bkpinfo->zip_exe, "bzip2");
671 strcpy(bkpinfo->zip_suffix, "bz2");
672 } else {
673 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
674 }
675
676// DVD
677
678 if (bkpinfo->backup_media_type == dvd) {
679 extra_cdrom_params[0] = '\0';
680 mondo_mkisofs_sz[0] = '\0';
681 if (find_home_of_exe("growisofs")) {
682 strcpy(cdr_exe, "growisofs");
683 } // unlikely to be used
684 else {
685 fatal_error("Please install growisofs.");
686 }
687 if (bkpinfo->nonbootable_backup) {
688 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
689 } else if
690#ifdef __FreeBSD__
691 (TRUE)
692#else
693 (bkpinfo->make_cd_use_lilo)
694#endif
695#ifdef __IA64__
696 {
697 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
698 }
699#else
700 {
701 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
702 }
703#endif
704 else
705 {
706 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
707 }
708 if (bkpinfo->manual_cd_tray) {
709 fatal_error("Manual CD tray + DVD not supported yet.");
710 // -m isn't supported by growisofs, BTW...
711 } else {
712 sprintf(bkpinfo->call_make_iso,
713 "%s %s -Z %s . 2>> _ERR_",
714 mondo_mkisofs_sz,
715 extra_cdrom_params, bkpinfo->media_device);
716 }
717 if (getenv ("SUDO_COMMAND")) {
718 sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
719 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
720 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
721 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
722 }
723 }
724 log_msg(2, "call_make_iso (DVD res) is ... %s",
725 bkpinfo->call_make_iso);
726 } // end of DVD code
727
728// CD-R or CD-RW
729 if (bkpinfo->backup_media_type == cdrw
730 || bkpinfo->backup_media_type == cdr) {
731 extra_cdrom_params[0] = '\0';
732 if (!bkpinfo->manual_cd_tray) {
733 strcat(extra_cdrom_params, "-waiti ");
734 }
735 if (bkpinfo->backup_media_type == cdrw) {
736 strcat(extra_cdrom_params, "blank=fast ");
737 }
738 if (find_home_of_exe("cdrecord")) {
739 strcpy(cdr_exe, "cdrecord");
740 } else if (find_home_of_exe("dvdrecord")) {
741 strcpy(cdr_exe, "dvdrecord");
742 } else {
743 fatal_error("Please install either cdrecord or dvdrecord.");
744 }
745 if (bkpinfo->nonbootable_backup) {
746 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
747 } else if
748#ifdef __FreeBSD__
749 (TRUE)
750#else
751 (bkpinfo->make_cd_use_lilo)
752#endif
753#ifdef __IA64__
754 {
755 strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
756 }
757#else
758 {
759 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
760 }
761#endif
762 else
763 {
764 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
765 }
766 if (bkpinfo->manual_cd_tray) {
767 if (bkpinfo->call_before_iso[0] == '\0') {
768 sprintf(bkpinfo->call_before_iso,
769 "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
770 mondo_mkisofs_sz, bkpinfo->tmpdir);
771 } else {
772 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
773 sprintf (bkpinfo->call_before_iso,
774 "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
775 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
776 }
777 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
778 sprintf(bkpinfo->call_make_iso,
779 "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
780 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
781 extra_cdrom_params, bkpinfo->media_device,
782 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
783 } else {
784 sprintf(bkpinfo->call_make_iso,
785 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
786 mondo_mkisofs_sz, cdr_exe,
787 (bkpinfo->please_dont_eject) ? " " : "-eject",
788 extra_cdrom_params, bkpinfo->media_device,
789 bkpinfo->cdrw_speed);
790 }
791 } // end of CD code
792
793 /*
794 if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
795 {
796 sprintf (tmp,
797 "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
798 bkpinfo->media_device, bkpinfo->internal_tape_block_size);
799 if (system(tmp))
800 {
801 retval++;
802 fprintf (stderr,
803 "Cannot write to tape device. Is the tape set read-only?\n");
804 }
805 } // end of tape code
806 */
807
808
809 if (bkpinfo->backup_media_type == iso) {
810
811/* Patch by Conor Daly <conor.daly@met.ie>
812 * 23-june-2004
813 * Break up isodir into iso_mnt and iso_path
814 * These will be used along with iso-dev at restore time
815 * to locate the ISOs where ever they're mounted
816 */
817
818 log_it("isodir = %s", bkpinfo->isodir);
819 sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
820 bkpinfo->isodir);
821 log_it("command = %s", command);
822 log_it("res of it = %s",
823 call_program_and_get_last_line_of_output(command));
824 sprintf(iso_dev, "%s",
825 call_program_and_get_last_line_of_output(command));
826 sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
827 write_one_liner_data_file(tmp,
828 call_program_and_get_last_line_of_output
829 (command));
830
831 sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
832 iso_dev);
833 log_it("command = %s", command);
834 log_it("res of it = %s",
835 call_program_and_get_last_line_of_output(command));
836 sprintf(iso_mnt, "%s",
837 call_program_and_get_last_line_of_output(command));
838 sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
839 write_one_liner_data_file(tmp,
840 call_program_and_get_last_line_of_output
841 (command));
842 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
843 sprintf(iso_tmp, "%s", bkpinfo->isodir);
844 if (strlen(iso_tmp) < strlen(iso_mnt)) {
845 iso_path[0] = '\0';
846 } else {
847 sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
848 }
849 sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
850 write_one_liner_data_file(tmp, iso_path);
851 log_it("isodir: %s", iso_path);
852 sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
853 write_one_liner_data_file(tmp, bkpinfo->prefix);
854 log_it("iso-prefix: %s", bkpinfo->prefix);
855
856/* End patch */
857 } // end of iso code
858
859 if (bkpinfo->backup_media_type == nfs) {
860 strcpy(hostname, bkpinfo->nfs_mount);
861 colon = strchr(hostname, ':');
862 if (!colon) {
863 log_it("nfs mount doesn't have a colon in it");
864 retval++;
865 } else {
866 struct hostent *hent;
867
868 *colon = '\0';
869 hent = gethostbyname(hostname);
870 if (!hent) {
871 log_it("Can't resolve NFS mount (%s): %s", hostname,
872 hstrerror(h_errno));
873 retval++;
874 } else {
875 strcpy(ip_address, inet_ntoa
876 ((struct in_addr)
877 *((struct in_addr *) hent->h_addr)));
878 strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
879 strcpy(bkpinfo->nfs_mount, ip_address);
880 }
881 }
882 store_nfs_config();
883 }
884
885 log_it("Finished processing incoming params");
886 if (retval) {
887 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
888 }
889 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
890 log_it("tmpdir or scratchdir are blank/missing");
891 retval++;
892 }
893 if (bkpinfo->include_paths[0] == '\0') {
894 // fatal_error ("Why no backup path?");
895 strcpy(bkpinfo->include_paths, "/");
896 }
897 chmod(bkpinfo->scratchdir, 0700);
898 g_backup_media_type = bkpinfo->backup_media_type;
899 paranoid_free(mtpt);
900 paranoid_free(extra_cdrom_params);
901 paranoid_free(mondo_mkisofs_sz);
902 paranoid_free(command);
903 paranoid_free(hostname);
904 paranoid_free(ip_address);
905 paranoid_free(cdr_exe);
906 paranoid_free(tmp);
907 paranoid_free(iso_dev);
908 paranoid_free(iso_mnt);
909 paranoid_free(iso_tmp);
910 paranoid_free(iso_path);
911 return (retval);
912}
913
914
915
916/**
917 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
918 * Seeds the random-number generator, loads important modules, checks the sanity
919 * of the user's Linux distribution, and deletes logfile.
920 * @param bkpinfo The backup information structure. Will be initialized.
921 * @return number of errors (0 for success)
922 */
923int pre_param_configuration()
924{
925 int res = 0;
926 char *tmp = NULL;
927
928 make_hole_for_dir(MNT_CDROM);
929 assert(bkpinfo != NULL);
930 srandom((unsigned long) (time(NULL)));
931 insmod_crucial_modules();
932 if (bkpinfo->disaster_recovery) {
933 if (!does_nonMS_partition_exist()) {
934 fatal_error
935 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
936 }
937 }
938
939 unlink(MONDO_TRACEFILE);
940 asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
941 run_program_and_log_output(tmp, FALSE);
942 paranoid_free(tmp);
943 if (find_and_store_mondoarchives_home(g_mondo_home)) {
944 fprintf(stderr,
945 "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");
946 res++;
947 return (res);
948 }
949 res += some_basic_system_sanity_checks();
950 if (res) {
951 log_it("Your distribution did not pass Mondo's sanity test.");
952 }
953 g_current_media_number = 1;
954 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
955 return (res);
956}
957
958void setup_tmpdir(char *path) {
959
960 char *tmp = NULL;
961 char *p = NULL;
962
963 if (bkpinfo->tmpdir != NULL) {
964 /* purging a potential old tmpdir */
965 asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
966 system(tmp);
967 paranoid_free(tmp);
968 }
969
970 if (path != NULL) {
971 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
972 } else if (getenv("TMPDIR")) {
973 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
974 } else if (getenv("TMP")) {
975 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
976 } else {
977 asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
978 }
979 p = mkdtemp(tmp);
980 if (p == NULL) {
981 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
982 finish(-1);
983 }
984 strcpy(bkpinfo->tmpdir,p);
985 paranoid_free(tmp);
986
987 //sprintf(bkpinfo->tmpdir, "%s/tmpfs/mondo.tmp.%d", "/tmp", (int) (random() % 32768)); // for mondorestore
988}
989
990
991/**
992 * Reset all fields of the backup information structure to a sensible default.
993 * @param bkpinfo The @c bkpinfo to reset.
994 */
995void reset_bkpinfo()
996{
997 int i;
998
999 log_msg(1, "Hi");
1000 assert(bkpinfo != NULL);
1001 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
1002
1003 /* special case for tmpdir as used eveywhere after */
1004 setup_tmpdir(NULL);
1005
1006 bkpinfo->manual_cd_tray = FALSE;
1007 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
1008 bkpinfo->media_device[0] = '\0';
1009 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
1010 bkpinfo->media_size[i] = -1;
1011 }
1012 bkpinfo->boot_loader = '\0';
1013 bkpinfo->boot_device[0] = '\0';
1014 bkpinfo->zip_exe[0] = '\0';
1015 bkpinfo->zip_suffix[0] = '\0';
1016 bkpinfo->restore_path[0] = '\0';
1017 bkpinfo->use_lzo = FALSE;
1018 bkpinfo->use_gzip = FALSE;
1019 bkpinfo->do_not_compress_these[0] = '\0';
1020 bkpinfo->verify_data = FALSE;
1021 bkpinfo->backup_data = FALSE;
1022 bkpinfo->restore_data = FALSE;
1023 bkpinfo->disaster_recovery =
1024 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
1025 if (bkpinfo->disaster_recovery) {
1026 strcpy(bkpinfo->isodir, "/");
1027 } else {
1028 strcpy(bkpinfo->isodir, "/root/images/mondo");
1029 }
1030 strcpy(bkpinfo->prefix, STD_PREFIX);
1031
1032 bkpinfo->scratchdir[0] = '\0';
1033 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
1034 bkpinfo->optimal_set_size = 0;
1035 bkpinfo->backup_media_type = none;
1036 strcpy(bkpinfo->include_paths, "/");
1037 bkpinfo->exclude_paths[0] = '\0';
1038 bkpinfo->call_before_iso[0] = '\0';
1039 bkpinfo->call_make_iso[0] = '\0';
1040 bkpinfo->call_burn_iso[0] = '\0';
1041 bkpinfo->call_after_iso[0] = '\0';
1042 bkpinfo->image_devs[0] = '\0';
1043 bkpinfo->postnuke_tarball[0] = '\0';
1044 bkpinfo->kernel_path[0] = '\0';
1045 bkpinfo->nfs_mount[0] = '\0';
1046 bkpinfo->nfs_remote_dir[0] = '\0';
1047 bkpinfo->wipe_media_first = FALSE;
1048 bkpinfo->differential = FALSE;
1049 bkpinfo->cdrw_speed = 0;
1050// patch by Herman Kuster
1051 bkpinfo->differential = 0;
1052// patch end
1053 bkpinfo->compression_level = 3;
1054}
1055
1056
1057
1058
1059/**
1060 * Get the remaining free space (in MB) on @p partition.
1061 * @param partition The partition to check free space on (either a device or a mountpoint).
1062 * @return The free space on @p partition, in MB.
1063 */
1064long free_space_on_given_partition(char *partition)
1065{
1066 char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1067 long res;
1068
1069 assert_string_is_neither_NULL_nor_zerolength(partition);
1070
1071 sprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
1072 if (system(command)) {
1073 return (-1);
1074 } // partition does not exist
1075 sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1076 partition);
1077 strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1078 if (strlen(out_sz) == 0) {
1079 return (-1);
1080 } // error within df, probably
1081 res = atol(out_sz);
1082 return (res);
1083}
1084
1085
1086
1087/**
1088 * Check the user's system for sanity. Checks performed:
1089 * - make sure user has enough RAM (32mb required, 64mb recommended)
1090 * - make sure user has enough free space in @c /
1091 * - check kernel for ramdisk support
1092 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1093 * - make sure CD-ROM is unmounted
1094 * - make sure /etc/modules.conf exists
1095 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1096 *
1097 * @return number of problems with the user's setup (0 for success)
1098 */
1099int some_basic_system_sanity_checks()
1100{
1101
1102 /*@ buffers ************ */
1103 char tmp[MAX_STR_LEN];
1104 // char command[MAX_STR_LEN];
1105
1106 /*@ int's *************** */
1107 int retval = 0;
1108 long Lres;
1109
1110
1111 mvaddstr_and_log_it(g_currentY, 0,
1112 "Checking sanity of your Linux distribution");
1113#ifndef __FreeBSD__
1114 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
1115 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
1116 log_it
1117 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1118 run_program_and_log_output
1119 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1120 }
1121 strcpy(tmp,
1122 call_program_and_get_last_line_of_output
1123 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1124 if (atol(tmp) < 35000) {
1125 retval++;
1126 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1127 }
1128 if (atol(tmp) < 66000) {
1129 log_to_screen
1130 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1131 }
1132#endif
1133
1134 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1135 retval++;
1136 log_to_screen
1137 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1138 fatal_error
1139 ("Please use \"su -\", not \"su\" to become root. OK? ...and please don't e-mail the mailing list or me about this. Just read the message. :)");
1140 }
1141#ifndef __FreeBSD__
1142 if (run_program_and_log_output
1143 ("grep ramdisk /proc/devices", FALSE)) {
1144 if (!ask_me_yes_or_no
1145 ("Your kernel has no ramdisk support. That's mind-numbingly stupid but I'll allow it if you're planning to use a failsafe kernel. Are you?"))
1146 {
1147 // retval++;
1148 log_to_screen
1149 ("It looks as if your kernel lacks ramdisk and initrd support.");
1150 log_to_screen
1151 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1152 }
1153 }
1154#endif
1155 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1156 retval += whine_if_not_found("mkisofs");
1157 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1158 retval += whine_if_not_found("cdrecord");
1159 }
1160 retval += whine_if_not_found("bzip2");
1161 retval += whine_if_not_found("gzip");
1162 retval += whine_if_not_found("awk");
1163 retval += whine_if_not_found("md5sum");
1164 retval += whine_if_not_found("strings");
1165 retval += whine_if_not_found("mindi");
1166 retval += whine_if_not_found("buffer");
1167
1168 // abort if Windows partition but no ms-sys and parted
1169 if (!run_program_and_log_output
1170 ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1171 ||
1172 !run_program_and_log_output
1173 ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1174 log_to_screen("I think you have a Windows 9x partition.");
1175 retval += whine_if_not_found("parted");
1176#ifndef __IA64__
1177 /* IA64 always has one vfat partition for EFI even without Windows */
1178 // retval +=
1179 if (!find_home_of_exe("ms-sys")) {
1180 log_to_screen("Please install ms-sys just in case.");
1181 }
1182#endif
1183 }
1184
1185 if (!find_home_of_exe("cmp")) {
1186 if (!find_home_of_exe("true")) {
1187 whine_if_not_found("cmp");
1188 } else {
1189 log_to_screen
1190 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1191 if (run_program_and_log_output
1192 ("cp -f `which true` /usr/bin/cmp", 0)) {
1193 fatal_error("Failed to create dummy 'cmp' file.");
1194 }
1195 }
1196 }
1197 run_program_and_log_output
1198 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1199 strcpy(tmp,
1200 call_program_and_get_last_line_of_output
1201 ("mount | grep -E \"cdr(om|w)\""));
1202 if (strcmp("", tmp)) {
1203 if (strstr(tmp, "autofs")) {
1204 log_to_screen
1205 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1206 log_to_screen
1207 ("if a CD actually is inserted. If a CD is inserted, please");
1208 log_to_screen("eject it. Thank you.");
1209 log_it
1210 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1211 } else
1212 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1213 retval++;
1214 fatal_error
1215 ("Your CD-ROM drive is mounted. Please unmount it.");
1216 }
1217 }
1218#ifndef __FreeBSD__
1219 if (!does_file_exist("/etc/modules.conf")) {
1220 if (does_file_exist("/etc/conf.modules")) {
1221 log_it("Linking /etc/modules.conf to /etc/conf.modules");
1222 run_program_and_log_output
1223 ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1224 } else if (does_file_exist("/etc/modprobe.d")) {
1225 log_it
1226 ("Directory /etc/modprobe.d found. mindi will use its contents.");
1227 } else if (does_file_exist("/etc/modprobe.conf")) {
1228 log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1229 run_program_and_log_output
1230 ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1231 } else {
1232 retval++;
1233 log_to_screen
1234 ("Please find out what happened to /etc/modules.conf");
1235 }
1236 }
1237#endif
1238
1239 run_program_and_log_output("cat /etc/fstab", 5);
1240#ifdef __FreeBSD__
1241 run_program_and_log_output("vinum printconfig", 5);
1242#else
1243 run_program_and_log_output("cat /etc/raidtab", 5);
1244#endif
1245
1246 if (run_program_and_log_output("mindi -V", 1)) {
1247 log_to_screen("Could not ascertain mindi's version number.");
1248 log_to_screen
1249 ("You have not installed Mondo and/or Mindi properly.");
1250 log_to_screen("Please uninstall and reinstall them both.");
1251 fatal_error("Please reinstall Mondo and Mindi.");
1252 }
1253 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1254 if (run_program_and_log_output(tmp, 5)) {
1255 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1256 log_to_screen(tmp);
1257 log_to_screen
1258 ("Please run that command by hand and examine /var/log/mindi.log");
1259 log_to_screen
1260 ("for more information. Perhaps your /etc/fstab file is insane.");
1261 log_to_screen
1262 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1263 retval++;
1264 }
1265
1266 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1267 && !does_file_exist("/etc/raidtab")) {
1268 log_to_screen
1269 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1270 create_raidtab_from_mdstat("/etc/raidtab");
1271 }
1272
1273 if (retval) {
1274 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1275 } else {
1276 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1277 }
1278 return (retval);
1279}
1280
1281/**
1282 * Retrieve the line containing @p label from the config file.
1283 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1284 * @param label What to read from the file.
1285 * @param value Where to put it.
1286 * @return 0 for success, 1 for failure.
1287 */
1288int read_cfg_var(char *config_file, char *label, char *value)
1289{
1290 /*@ buffer ****************************************************** */
1291 char command[MAX_STR_LEN * 2];
1292 char tmp[MAX_STR_LEN];
1293
1294 /*@ end vars *************************************************** */
1295
1296 assert_string_is_neither_NULL_nor_zerolength(config_file);
1297 assert_string_is_neither_NULL_nor_zerolength(label);
1298 if (!does_file_exist(config_file)) {
1299 sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1300 config_file);
1301 log_to_screen(tmp);
1302 value[0] = '\0';
1303 return (1);
1304 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1305 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1306 return (0);
1307 } else {
1308 sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1309 label, config_file);
1310 strcpy(value, call_program_and_get_last_line_of_output(command));
1311 if (strlen(value) == 0) {
1312 return (1);
1313 } else {
1314 return (0);
1315 }
1316 }
1317}
1318
1319
1320
1321/**
1322 * Remount @c supermount if it was unmounted earlier.
1323 */
1324void remount_supermounts_if_necessary()
1325{
1326 if (g_remount_cdrom_at_end) {
1327 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1328 }
1329 if (g_remount_floppy_at_end) {
1330 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1331 }
1332}
1333
1334/**
1335 * Unmount @c supermount if it's mounted.
1336 */
1337void unmount_supermounts_if_necessary()
1338{
1339 if (run_program_and_log_output
1340 ("mount | grep cdrom | grep super", FALSE) == 0) {
1341 g_remount_cdrom_at_end = TRUE;
1342 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1343 }
1344 if (run_program_and_log_output
1345 ("mount | grep floppy | grep super", FALSE) == 0) {
1346 g_remount_floppy_at_end = TRUE;
1347 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1348 }
1349}
1350
1351/**
1352 * Whether we had to stop autofs (if so, restart it at end).
1353 */
1354bool g_autofs_stopped = FALSE;
1355
1356/**
1357 * Path to the autofs initscript ("" if none exists).
1358 */
1359char g_autofs_exe[MAX_STR_LEN];
1360
1361/**
1362 * Autofs initscript in Xandros Linux distribution.
1363 */
1364#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1365
1366/**
1367 * Autofs initscript in most Linux distributions.
1368 */
1369#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1370
1371/**
1372 * If autofs is mounted, stop it (restart at end).
1373 */
1374void stop_autofs_if_necessary()
1375{
1376 char tmp[MAX_STR_LEN];
1377
1378 g_autofs_exe[0] = '\0';
1379 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1380 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1381 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1382 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1383 }
1384
1385 if (!g_autofs_exe[0]) {
1386 log_msg(3, "No autofs detected.");
1387 } else {
1388 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1389// FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1390 sprintf(tmp, "%s stop", g_autofs_exe);
1391 if (run_program_and_log_output(tmp, 2)) {
1392 log_it("Failed to stop autofs - I assume it wasn't running");
1393 } else {
1394 g_autofs_stopped = TRUE;
1395 log_it("Stopped autofs OK");
1396 }
1397 }
1398}
1399
1400/**
1401 * If autofs was stopped earlier, restart it.
1402 */
1403void restart_autofs_if_necessary()
1404{
1405 char tmp[MAX_STR_LEN];
1406
1407 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1408 log_msg(3, "No autofs detected.");
1409 return;
1410 }
1411 sprintf(tmp, "%s start", g_autofs_exe);
1412 if (run_program_and_log_output(tmp, 2)) {
1413 log_it("Failed to start autofs");
1414 } else {
1415 g_autofs_stopped = FALSE;
1416 log_it("Started autofs OK");
1417 }
1418}
1419
1420
1421/**
1422 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1423 */
1424void mount_boot_if_necessary()
1425{
1426 char tmp[MAX_STR_LEN];
1427 char command[MAX_STR_LEN];
1428
1429 log_msg(1, "Started sub");
1430 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1431 g_boot_mountpt[0] = '\0';
1432 log_msg(4, "Done. Great. Seeting command to something");
1433 strcpy(command,
1434 "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1435 log_msg(4, "Cool. Command = '%s'", command);
1436 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1437 log_msg(4, "tmp = '%s'", tmp);
1438 if (tmp[0]) {
1439 log_it("/boot is at %s according to /etc/fstab", tmp);
1440 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1441 if (!run_program_and_log_output("mount /boot", 5)) {
1442 strcpy(g_boot_mountpt, "/boot");
1443 log_msg(1, "Mounted /boot");
1444 } else {
1445 log_it("...ignored cos it's a label or uuid :-)");
1446 }
1447 } else {
1448 sprintf(command, "mount | grep -E '^%s'", tmp);
1449 log_msg(3, "command = %s", command);
1450 if (run_program_and_log_output(command, 5)) {
1451 strcpy(g_boot_mountpt, tmp);
1452 sprintf(tmp,
1453 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1454 g_boot_mountpt);
1455 log_it(tmp);
1456 sprintf(tmp, "mount %s", g_boot_mountpt);
1457 if (run_program_and_log_output(tmp, 5)) {
1458 g_boot_mountpt[0] = '\0';
1459 log_msg(1, "Plan B");
1460 if (!run_program_and_log_output("mount /boot", 5)) {
1461 strcpy(g_boot_mountpt, "/boot");
1462 log_msg(1, "Plan B worked");
1463 } else {
1464 log_msg(1,
1465 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1466 }
1467 }
1468 }
1469 }
1470 }
1471 log_msg(1, "Ended sub");
1472}
1473
1474
1475/**
1476 * If we mounted /boot earlier, unmount it.
1477 */
1478void unmount_boot_if_necessary()
1479{
1480 char tmp[MAX_STR_LEN];
1481
1482 log_msg(3, "starting");
1483 if (g_boot_mountpt[0]) {
1484 sprintf(tmp, "umount %s", g_boot_mountpt);
1485 if (run_program_and_log_output(tmp, 5)) {
1486 log_it("WARNING - unable to unmount /boot");
1487 }
1488 }
1489 log_msg(3, "leaving");
1490}
1491
1492
1493
1494/**
1495 * Write a line to a configuration file. Writes a line of the form,
1496 * @c label @c value.
1497 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1498 * @param label What to call this bit of data you're writing.
1499 * @param value The bit of data you're writing.
1500 * @return 0 for success, 1 for failure.
1501 */
1502int write_cfg_var(char *config_file, char *label, char *value)
1503{
1504 /*@ buffers ***************************************************** */
1505 char command[MAX_STR_LEN * 2];
1506 char tempfile[MAX_STR_LEN];
1507 char tmp[MAX_STR_LEN];
1508
1509
1510 /*@ end vars *************************************************** */
1511 assert_string_is_neither_NULL_nor_zerolength(config_file);
1512 assert_string_is_neither_NULL_nor_zerolength(label);
1513 assert(value != NULL);
1514 if (!does_file_exist(config_file)) {
1515 sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1516 config_file);
1517 log_to_screen(tmp);
1518 return (1);
1519 }
1520 sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1521 if (does_file_exist(config_file)) {
1522 sprintf(command, "grep -vE '^%s .*$' %s > %s",
1523 label, config_file, tempfile);
1524 paranoid_system(command);
1525 }
1526 sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1527 paranoid_system(command);
1528 sprintf(command, "mv -f %s %s", tempfile, config_file);
1529 paranoid_system(command);
1530 unlink(tempfile);
1531 return (0);
1532}
1533
1534
1535/**
1536 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1537 * information to the logfile.
1538 */
1539void standard_log_debug_msg(int debug_level, const char *szFile,
1540 const char *szFunction, int nLine,
1541 const char *fmt, ...)
1542{
1543 va_list args;
1544 int i;
1545 static int depth = 0;
1546 char *tmp;
1547 FILE *fout;
1548
1549 if (depth > 5) {
1550 depth--;
1551 return;
1552 }
1553 depth++;
1554
1555 malloc_string(tmp);
1556
1557 if (debug_level <= g_loglevel) {
1558 va_start(args, fmt);
1559 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1560 return;
1561 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1562
1563 // add tabs to distinguish log levels
1564 if (debug_level > 0) {
1565 for (i = 1; i < debug_level; i++)
1566 fprintf(fout, "\t");
1567 if (getpid() == g_main_pid)
1568 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1569 nLine);
1570 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1571 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1572 nLine);
1573 else
1574 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1575 szFunction, nLine);
1576 }
1577 vfprintf(fout, fmt, args);
1578
1579 // do not slow down the progran if standard debug level
1580 // must be enabled: if no flush, the log won't be up-to-date if there
1581 // is a segfault
1582 //if (g_dwDebugLevel != 1)
1583
1584 va_end(args);
1585 fprintf(fout, "\n");
1586 paranoid_fclose(fout);
1587 }
1588 depth--;
1589 paranoid_free(tmp);
1590}
1591
1592/**
1593 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1594 */
1595void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1596 ...) = standard_log_debug_msg;
1597
1598
1599/**
1600 * If @p y, malloc @p x, else free @p x.
1601 * @bug This function seems orphaned. Please remove.
1602 */
1603#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1604
1605/**
1606 * Allocate or free important globals, depending on @p mal.
1607 * @param mal If TRUE, malloc; if FALSE, free.
1608 */
1609void do_libmondo_global_strings_thing(int mal)
1610{
1611 if (mal) {
1612 malloc_string(g_boot_mountpt);
1613 malloc_string(g_mondo_home);
1614 malloc_string(g_tmpfs_mountpt);
1615 malloc_string(g_serial_string);
1616 malloc_string(g_magicdev_command);
1617 } else {
1618 paranoid_free(g_boot_mountpt);
1619 paranoid_free(g_mondo_home);
1620 paranoid_free(g_tmpfs_mountpt);
1621 paranoid_free(g_serial_string);
1622 paranoid_free(g_magicdev_command);
1623 }
1624
1625 /*
1626 char**list_of_arrays[] = {
1627 &g_boot_mountpt,
1628 &g_mondo_home,
1629 &g_tmpfs_mountpt,
1630 &g_serial_string,
1631 &g_magicdev_command,
1632 NULL};
1633
1634 char**ppcurr;
1635 int i;
1636
1637 for(i=0;list_of_arrays[i];i++)
1638 {
1639 log_msg(5, "Allocating %d", i);
1640 ppcurr = list_of_arrays[i];
1641 if (mal)
1642 { *ppcurr = malloc(MAX_STR_LEN); }
1643 else
1644 {
1645 if (*ppcurr)
1646 {
1647 free(*ppcurr);
1648 }
1649 }
1650 }
1651 log_msg(5, "Returning");
1652 */
1653}
1654
1655/**
1656 * Allocate important globals.
1657 * @see do_libmondo_global_strings_thing
1658 */
1659void malloc_libmondo_global_strings(void)
1660{
1661 do_libmondo_global_strings_thing(1);
1662}
1663
1664/**
1665 * Free important globals.
1666 * @see do_libmondo_global_strings_thing
1667 */
1668void free_libmondo_global_strings(void)
1669{
1670 do_libmondo_global_strings_thing(0);
1671}
1672
1673
1674
1675/**
1676 * Stop @c magicdev if it's running.
1677 * The command used to start it is saved in @p g_magicdev_command.
1678 */
1679void stop_magicdev_if_necessary()
1680{
1681 strcpy(g_magicdev_command,
1682 call_program_and_get_last_line_of_output
1683 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1684 if (g_magicdev_command[0]) {
1685 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1686 paranoid_system("killall magicdev");
1687 }
1688}
1689
1690
1691/**
1692 * Restart magicdev if it was stopped.
1693 */
1694void restart_magicdev_if_necessary()
1695{
1696 char *tmp;
1697
1698 malloc_string(tmp);
1699 if (g_magicdev_command && g_magicdev_command[0]) {
1700 sprintf(tmp, "%s &", g_magicdev_command);
1701 paranoid_system(tmp);
1702 }
1703 paranoid_free(tmp);
1704}
1705
1706/* @} - end of utilityGroup */
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