source: MondoRescue/branches/2.2.5/mondo/src/common/libmondo-tools.c@ 1644

Last change on this file since 1644 was 1644, checked in by Bruno Cornec, 17 years ago

Apply patch from Andree Leidenfrost, modified a bit to use bkpinfo->tmpdir instead of /tmp
or MINDI_CACHE when appropriate. Fix security issues in mondo
Thanks al ot Andree for catching all those issues.
Will not compile needs more work as bkpinfo->tmpdir isn't available everywhere
Should become a global in 3.x when only containing pointers.
  • Property svn:keywords set to Id
File size: 45.0 KB
Line 
1/* libmondo-tools.c misc tools
2 $Id: libmondo-tools.c 1644 2007-09-23 00:41:29Z 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 <netinet/in.h>
185#include <arpa/inet.h>
186#include <sys/utsname.h>
187
188/*@unused@*/
189//static char cvsid[] = "$Id: libmondo-tools.c 1644 2007-09-23 00:41:29Z bruno $";
190
191extern int g_tape_buffer_size_MB;
192extern char *g_erase_tmpdir_and_scratchdir;
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/**
200 * @addtogroup globalGroup
201 * @{
202 */
203bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
204 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
205bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
206double g_kernel_version;
207
208/**
209 * The place where /boot is mounted.
210 */
211char *g_boot_mountpt = NULL;
212
213/**
214 * The location of Mondo's home directory.
215 */
216char *g_mondo_home = NULL;
217
218/**
219 * The serial string (used to differentiate between backups) of the current backup.
220 */
221char *g_serial_string = NULL;
222
223/**
224 * The location where tmpfs is mounted, or "" if it's not mounted.
225 */
226char *g_tmpfs_mountpt = NULL;
227char *g_magicdev_command = NULL;
228
229/**
230 * The default maximum level to log messages at or below.
231 */
232int g_loglevel = DEFAULT_DEBUG_LEVEL;
233
234/* @} - end of globalGroup */
235
236
237extern pid_t g_buffer_pid;
238extern pid_t g_main_pid;
239
240extern t_bkptype g_backup_media_type;
241
242extern bool am_I_in_disaster_recovery_mode(void);
243
244
245/**
246 * @addtogroup utilityGroup
247 * @{
248 */
249/**
250 * Assertion handler. Prints a friendly message to the user,
251 * offering to ignore all, dump core, break to debugger,
252 * exit, or ignore. Intended to be used with an assert() macro.
253 *
254 * @param file The file in which the assertion triggered.
255 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
256 * @param line The line number of the assert() statement.
257 * @param exp The expression that failed (as a string).
258 */
259void _mondo_assert_fail(const char *file,
260 const char *function, int line, const char *exp)
261{
262 static int ignoring_assertions = 0;
263 bool is_valid = TRUE;
264
265 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
266 function);
267 if (ignoring_assertions) {
268 log_it("Well, the user doesn't care...");
269 return;
270 }
271#ifndef _XWIN
272 if (!g_text_mode)
273 newtSuspend();
274#endif
275 printf("ASSERTION FAILED: `%s'\n", exp);
276 printf("\tat %s:%d in %s\n\n", file, line, function);
277 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
278 do {
279 is_valid = TRUE;
280 switch (toupper(getchar())) {
281 case 'A': // ignore (A)ll
282 ignoring_assertions = 1;
283 break;
284 case 'B': // a(B)ort
285 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
286 raise(SIGABRT);
287 break; /* "can't get here" */
288 case 'D': // (D)ebug, aka asm("int 3")
289#ifdef __IA32__
290 __asm__ __volatile__("int $3"); // break to debugger
291#endif
292 break;
293 case 'E': // (E)xit
294 fatal_error("Failed assertion -- see above for details");
295 break; /* "can't get here" */
296 case 'I': // (I)gnore
297 break;
298 /* These next two work as follows:
299 the `default' catches the user's invalid choice and says so;
300 the '\n' catches the newline on the end and prints the prompt again.
301 */
302 case '\n':
303 printf
304 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
305 break;
306 default:
307 is_valid = FALSE;
308 printf("Invalid choice.\n");
309 break;
310 }
311 } while (!is_valid);
312
313 if (ignoring_assertions) {
314 log_it("Ignoring ALL assertions from now on.");
315 } else {
316 log_it("Ignoring assertion: %s", exp);
317 }
318
319 getchar(); // skip \n
320
321#ifndef _XWIN
322 if (!g_text_mode)
323 newtResume();
324#endif
325}
326
327/**
328 * Clean's up users' KDE desktops.
329 * @bug Details about this function are unknown.
330 */
331void clean_up_KDE_desktop_if_necessary(void)
332{
333 char *tmp;
334
335 malloc_string(tmp);
336 strcpy(tmp,
337 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
338file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
339awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
340else { print $0;};}' $file.old > $file ; fi ; done");
341 run_program_and_log_output(tmp, 5);
342 paranoid_free(tmp);
343}
344
345
346/**
347 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
348 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
349 *
350 * @param home_sz String to store the home directory ("" if it could not be found).
351 * @return 0 for success, nonzero for failure.
352 */
353int find_and_store_mondoarchives_home(char *home_sz)
354{
355 assert(home_sz != NULL);
356 strcpy(home_sz, MONDO_SHARE);
357 return (0);
358}
359
360
361char *get_architecture(void) {
362#ifdef __IA32__
363# ifdef __X86_64__
364 return ("x86_64");
365# else
366 return ("i386");
367# endif
368#endif
369#ifdef __IA64__
370 return ("ia64");
371#endif
372 return ("unknown");
373}
374
375
376char *get_uname_m(void) {
377
378 struct utsname utsn;
379 char *tmp = NULL;
380
381 uname(&utsn);
382 asprintf(&tmp, utsn.machine);
383 return (tmp);
384}
385
386
387
388double get_kernel_version(void)
389{
390 char *p, tmp[200];
391 double d;
392#ifdef __FreeBSD__
393 // JOSH - FIXME :)
394 d = 5.2; // :-)
395#else
396 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
397 p = strchr(tmp, '.');
398 if (p) {
399 p = strchr(++p, '.');
400 if (p) {
401 while (*p) {
402 *p = *(p + 1);
403 p++;
404 }
405 }
406 }
407// log_msg(1, "tmp = '%s'", tmp);
408 d = atof(tmp);
409#endif
410 log_msg(1, "g_kernel_version = %f", d);
411 return (d);
412}
413
414
415
416
417
418/**
419 * Get the current time.
420 * @return number of seconds since the epoch.
421 */
422long get_time()
423{
424 return (long) time((void *) 0);
425}
426
427
428
429
430
431
432
433/**
434 * Initialize a RAID volume structure, setting fields to zero. The
435 * actual hard drive is unaffected.
436 *
437 * @param raidrec The RAID volume structure to initialize.
438 * @note This function is system dependent.
439 */
440#ifdef __FreeBSD__
441void initialize_raidrec(struct vinum_volume *raidrec)
442{
443 int i, j;
444 raidrec->volname[0] = '\0';
445 raidrec->plexes = 0;
446 for (i = 0; i < 9; ++i) {
447 raidrec->plex[i].raidlevel = -1;
448 raidrec->plex[i].stripesize = 0;
449 raidrec->plex[i].subdisks = 0;
450 for (j = 0; j < 9; ++j) {
451 strcpy(raidrec->plex[i].sd[j].which_device, "");
452 }
453 }
454}
455#else
456void initialize_raidrec(struct raid_device_record *raidrec)
457{
458 assert(raidrec != NULL);
459 raidrec->raid_device[0] = '\0';
460 raidrec->raid_level = -9;
461 raidrec->persistent_superblock = 1;
462 raidrec->chunk_size = 64;
463 raidrec->parity = -1;
464 raidrec->data_disks.entries = 0;
465 raidrec->spare_disks.entries = 0;
466 raidrec->parity_disks.entries = 0;
467 raidrec->failed_disks.entries = 0;
468 raidrec->additional_vars.entries = 0;
469}
470#endif
471
472
473
474
475/**
476 * Insert modules that Mondo requires.
477 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
478 * @c msdosfs and @c ext2fs for FreeBSD.
479 */
480void insmod_crucial_modules(void)
481{
482#ifdef __FreeBSD__
483 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
484 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
485#else
486 system("modprobe -a msdos vfat loop &> /dev/null");
487#endif
488}
489
490
491/**
492 * Log a trace message to the trace file.
493 * @bug This function seems orphaned. Please remove.
494 */
495void log_trace(char *o)
496{
497 /*@ pointers **************************************************** */
498 FILE *fout;
499
500 /*@ buffers ***************************************************** */
501 char output[MAX_STR_LEN];
502
503 /*@ int ****************************************************** */
504 int i;
505
506 /*@ end vars *************************************************** */
507
508 if (o[0] == '\0') {
509 return;
510 }
511 strcpy(output, o);
512 i = (int) strlen(output);
513 if (i <= 0) {
514 return;
515 }
516 if (output[i - 1] < 32) {
517 output[i - 1] = '\0';
518 }
519 if (g_text_mode
520 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
521 printf("%s\n", output);
522 }
523
524 fout = fopen(MONDO_TRACEFILE, "a");
525 if (fout) {
526 fprintf(fout, "%s\n", output);
527 paranoid_fclose(fout);
528 } else {
529 log_OS_error("Cannot write to tracefile");
530 }
531}
532
533
534
535
536
537/**
538 * Finish configuring the backup information structure. Call this function
539 * to set the parameters that depend on those that can be given on the command
540 * line.
541 *
542 * @param bkpinfo The backup information structure. Fields modified/used:
543 * - Used: @c bkpinfo->backup_data
544 * - Used: @c bkpinfo->backup_media_type
545 * - Used: @c bkpinfo->cdrw_speed
546 * - Used: @c bkpinfo->compression_level
547 * - Used: @c bkpinfo->include_paths
548 * - Used: @c bkpinfo->prefix
549 * - Used: @c bkpinfo->isodir
550 * - Used: @c bkpinfo->manual_cd_tray
551 * - Used: @c bkpinfo->make_cd_use_lilo
552 * - Used: @c bkpinfo->media_device
553 * - Used: @c bkpinfo->nfs_mount
554 * - Used: @c bkpinfo->nonbootable_backup
555 * - Used: @c bkpinfo->scratchdir
556 * - Used: @c bkpinfo->tmpdir
557 * - Used: @c bkpinfo->use_lzo
558 * - Modified: @c bkpinfo->call_before_iso
559 * - Modified: @c bkpinfo->call_make_iso
560 * - Modified: @c bkpinfo->optimal_set_size
561 * - Modified: @c bkpinfo->zip_exe
562 * - Modified: @c bkpinfo->zip_suffix
563 *
564 * @return number of errors, or 0 for success.
565 * @note Also creates directories that are specified in the @c bkpinfo structure but
566 * do not exist.
567 */
568int post_param_configuration(struct s_bkpinfo *bkpinfo)
569{
570 char *extra_cdrom_params;
571 char *mondo_mkisofs_sz;
572 char *command;
573 char *mtpt;
574 char *hostname, *ip_address;
575 int retval = 0;
576 long avm = 0;
577 char *colon;
578 char *cdr_exe;
579 char *tmp;
580 char call_before_iso_user[MAX_STR_LEN] = "\0";
581 int rdsiz_MB;
582 char *iso_dev;
583 char *iso_mnt;
584 char *iso_tmp;
585 char *iso_path;
586
587 assert(bkpinfo != NULL);
588 malloc_string(extra_cdrom_params);
589 malloc_string(mondo_mkisofs_sz);
590 malloc_string(command);
591 malloc_string(mtpt);
592 malloc_string(hostname);
593 malloc_string(ip_address);
594 malloc_string(cdr_exe);
595 malloc_string(tmp);
596 malloc_string(iso_dev);
597 malloc_string(iso_mnt);
598 malloc_string(iso_tmp);
599 malloc_string(iso_path);
600 bkpinfo->optimal_set_size =
601 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
602 1024;
603
604 log_msg(1, "Foo");
605 if (bkpinfo->backup_media_type == tape) {
606 log_msg(1, "Bar");
607 sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
608 log_msg(1, "tmp = '%s'", tmp);
609 if (run_program_and_log_output(tmp, 3)) {
610 fatal_error
611 ("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.");
612 }
613 }
614 make_hole_for_dir(bkpinfo->scratchdir);
615 make_hole_for_dir(bkpinfo->tmpdir);
616 if (bkpinfo->backup_media_type == iso)
617 make_hole_for_dir(bkpinfo->isodir);
618
619 run_program_and_log_output("uname -a", 5);
620 run_program_and_log_output("cat /etc/*-release", 5);
621 run_program_and_log_output("cat /etc/*issue*", 5);
622 sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
623 sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
624 paranoid_system(command);
625 rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
626#ifdef __FreeBSD__
627 strcpy(tmp,
628 call_program_and_get_last_line_of_output
629 ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
630 avm += atol(tmp);
631 strcpy(tmp,
632 call_program_and_get_last_line_of_output
633 ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
634 avm += atol(tmp);
635 sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
636 g_tmpfs_mountpt);
637#else
638 strcpy(tmp,
639 call_program_and_get_last_line_of_output
640 ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
641 avm += atol(tmp);
642 sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
643 g_tmpfs_mountpt, rdsiz_MB, 'm');
644 run_program_and_log_output("cat /proc/cpuinfo", 5);
645 run_program_and_log_output
646 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
647 5);
648#endif
649 if (avm / 1024 > rdsiz_MB * 3) {
650 if (run_program_and_log_output(command, 5)) {
651 g_tmpfs_mountpt[0] = '\0';
652 log_it("Failed to mount tmpfs");
653 } else {
654 log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
655 }
656 } else {
657 g_tmpfs_mountpt[0] = '\0';
658 log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
659 }
660
661 if (bkpinfo->use_lzo) {
662 strcpy(bkpinfo->zip_exe, "lzop");
663 strcpy(bkpinfo->zip_suffix, "lzo");
664 } else if (bkpinfo->use_gzip) {
665 strcpy(bkpinfo->zip_exe, "gzip");
666 strcpy(bkpinfo->zip_suffix, "gz");
667 } else if (bkpinfo->compression_level != 0) {
668 strcpy(bkpinfo->zip_exe, "bzip2");
669 strcpy(bkpinfo->zip_suffix, "bz2");
670 } else {
671 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
672 }
673
674// DVD
675
676 if (bkpinfo->backup_media_type == dvd) {
677 extra_cdrom_params[0] = '\0';
678 mondo_mkisofs_sz[0] = '\0';
679 if (find_home_of_exe("growisofs")) {
680 strcpy(cdr_exe, "growisofs");
681 } // unlikely to be used
682 else {
683 fatal_error("Please install growisofs.");
684 }
685 if (bkpinfo->nonbootable_backup) {
686 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
687 } else if
688#ifdef __FreeBSD__
689 (TRUE)
690#else
691 (bkpinfo->make_cd_use_lilo)
692#endif
693#ifdef __IA64__
694 {
695 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
696 }
697#else
698 {
699 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
700 }
701#endif
702 else
703 {
704 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
705 }
706 if (bkpinfo->manual_cd_tray) {
707 fatal_error("Manual CD tray + DVD not supported yet.");
708 // -m isn't supported by growisofs, BTW...
709 } else {
710 sprintf(bkpinfo->call_make_iso,
711 "%s %s -Z %s . 2>> _ERR_",
712 mondo_mkisofs_sz,
713 extra_cdrom_params, bkpinfo->media_device);
714 }
715 if (getenv ("SUDO_COMMAND")) {
716 sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
717 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
718 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
719 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
720 }
721 }
722 log_msg(2, "call_make_iso (DVD res) is ... %s",
723 bkpinfo->call_make_iso);
724 } // end of DVD code
725
726// CD-R or CD-RW
727 if (bkpinfo->backup_media_type == cdrw
728 || bkpinfo->backup_media_type == cdr) {
729 extra_cdrom_params[0] = '\0';
730 if (!bkpinfo->manual_cd_tray) {
731 strcat(extra_cdrom_params, "-waiti ");
732 }
733 if (bkpinfo->backup_media_type == cdrw) {
734 strcat(extra_cdrom_params, "blank=fast ");
735 }
736 if (find_home_of_exe("cdrecord")) {
737 strcpy(cdr_exe, "cdrecord");
738 } else if (find_home_of_exe("dvdrecord")) {
739 strcpy(cdr_exe, "dvdrecord");
740 } else {
741 fatal_error("Please install either cdrecord or dvdrecord.");
742 }
743 if (bkpinfo->nonbootable_backup) {
744 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
745 } else if
746#ifdef __FreeBSD__
747 (TRUE)
748#else
749 (bkpinfo->make_cd_use_lilo)
750#endif
751#ifdef __IA64__
752 {
753 strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
754 }
755#else
756 {
757 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
758 }
759#endif
760 else
761 {
762 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
763 }
764 if (bkpinfo->manual_cd_tray) {
765 if (bkpinfo->call_before_iso[0] == '\0') {
766 sprintf(bkpinfo->call_before_iso,
767 "%s -o %s/temporary.iso . 2>> _ERR_",
768 mondo_mkisofs_sz, bkpinfo->tmpdir);
769 } else {
770 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
771 sprintf (bkpinfo->call_before_iso,
772 "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
773 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
774 }
775 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
776 sprintf(bkpinfo->call_make_iso,
777 "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
778 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
779 extra_cdrom_params, bkpinfo->media_device,
780 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
781 } else {
782 sprintf(bkpinfo->call_make_iso,
783 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
784 mondo_mkisofs_sz, cdr_exe,
785 (bkpinfo->please_dont_eject) ? " " : "-eject",
786 extra_cdrom_params, bkpinfo->media_device,
787 bkpinfo->cdrw_speed);
788 }
789 } // end of CD code
790
791 /*
792 if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
793 {
794 sprintf (tmp,
795 "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
796 bkpinfo->media_device, bkpinfo->internal_tape_block_size);
797 if (system(tmp))
798 {
799 retval++;
800 fprintf (stderr,
801 "Cannot write to tape device. Is the tape set read-only?\n");
802 }
803 } // end of tape code
804 */
805
806
807 if (bkpinfo->backup_media_type == iso) {
808
809/* Patch by Conor Daly <conor.daly@met.ie>
810 * 23-june-2004
811 * Break up isodir into iso_mnt and iso_path
812 * These will be used along with iso-dev at restore time
813 * to locate the ISOs where ever they're mounted
814 */
815
816 log_it("isodir = %s", bkpinfo->isodir);
817 sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
818 bkpinfo->isodir);
819 log_it("command = %s", command);
820 log_it("res of it = %s",
821 call_program_and_get_last_line_of_output(command));
822 sprintf(iso_dev, "%s",
823 call_program_and_get_last_line_of_output(command));
824 sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
825 write_one_liner_data_file(tmp,
826 call_program_and_get_last_line_of_output
827 (command));
828
829 sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
830 iso_dev);
831 log_it("command = %s", command);
832 log_it("res of it = %s",
833 call_program_and_get_last_line_of_output(command));
834 sprintf(iso_mnt, "%s",
835 call_program_and_get_last_line_of_output(command));
836 sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
837 write_one_liner_data_file(tmp,
838 call_program_and_get_last_line_of_output
839 (command));
840 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
841 sprintf(iso_tmp, "%s", bkpinfo->isodir);
842 if (strlen(iso_tmp) < strlen(iso_mnt)) {
843 iso_path[0] = '\0';
844 } else {
845 sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
846 }
847 sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
848 write_one_liner_data_file(tmp, iso_path);
849 log_it("isodir: %s", iso_path);
850 sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
851 write_one_liner_data_file(tmp, bkpinfo->prefix);
852 log_it("iso-prefix: %s", bkpinfo->prefix);
853
854/* End patch */
855 } // end of iso code
856
857 if (bkpinfo->backup_media_type == nfs) {
858 strcpy(hostname, bkpinfo->nfs_mount);
859 colon = strchr(hostname, ':');
860 if (!colon) {
861 log_it("nfs mount doesn't have a colon in it");
862 retval++;
863 } else {
864 struct hostent *hent;
865
866 *colon = '\0';
867 hent = gethostbyname(hostname);
868 if (!hent) {
869 log_it("Can't resolve NFS mount (%s): %s", hostname,
870 hstrerror(h_errno));
871 retval++;
872 } else {
873 strcpy(ip_address, inet_ntoa
874 ((struct in_addr)
875 *((struct in_addr *) hent->h_addr)));
876 strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
877 strcpy(bkpinfo->nfs_mount, ip_address);
878 }
879 }
880 store_nfs_config(bkpinfo);
881 }
882
883 log_it("Finished processing incoming params");
884 if (retval) {
885 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
886 }
887 sprintf(tmp, "%s", MONDO_TMPISOS); /* added #define 22 apr 2002 */
888 if (does_file_exist(tmp)) {
889 unlink(tmp);
890 }
891 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
892 log_it("tmpdir or scratchdir are blank/missing");
893 retval++;
894 }
895 if (bkpinfo->include_paths[0] == '\0') {
896 // fatal_error ("Why no backup path?");
897 strcpy(bkpinfo->include_paths, "/");
898 }
899 chmod(bkpinfo->scratchdir, 0700);
900 chmod(bkpinfo->tmpdir, 0700);
901 g_backup_media_type = bkpinfo->backup_media_type;
902 paranoid_free(mtpt);
903 paranoid_free(extra_cdrom_params);
904 paranoid_free(mondo_mkisofs_sz);
905 paranoid_free(command);
906 paranoid_free(hostname);
907 paranoid_free(ip_address);
908 paranoid_free(cdr_exe);
909 paranoid_free(tmp);
910 paranoid_free(iso_dev);
911 paranoid_free(iso_mnt);
912 paranoid_free(iso_tmp);
913 paranoid_free(iso_path);
914 return (retval);
915}
916
917
918
919/**
920 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
921 * Seeds the random-number generator, loads important modules, checks the sanity
922 * of the user's Linux distribution, and deletes logfile.
923 * @param bkpinfo The backup information structure. Will be initialized.
924 * @return number of errors (0 for success)
925 */
926int pre_param_configuration(struct s_bkpinfo *bkpinfo)
927{
928 int res = 0;
929
930 make_hole_for_dir(MNT_CDROM);
931 assert(bkpinfo != NULL);
932 srandom((unsigned long) (time(NULL)));
933 insmod_crucial_modules();
934 reset_bkpinfo(bkpinfo); // also sets defaults ('/'=backup path, 3=compression level)
935 if (bkpinfo->disaster_recovery) {
936 if (!does_nonMS_partition_exist()) {
937 fatal_error
938 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
939 }
940 }
941
942 unlink(MONDO_TRACEFILE);
943 run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
944 if (find_and_store_mondoarchives_home(g_mondo_home)) {
945 fprintf(stderr,
946 "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");
947 res++;
948 return (res);
949 }
950 res += some_basic_system_sanity_checks();
951 if (res) {
952 log_it("Your distribution did not pass Mondo's sanity test.");
953 }
954 g_current_media_number = 1;
955 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
956 return (res);
957}
958
959
960
961
962/**
963 * Reset all fields of the backup information structure to a sensible default.
964 * @param bkpinfo The @c bkpinfo to reset.
965 */
966void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
967{
968 int i;
969
970 log_msg(1, "Hi");
971 assert(bkpinfo != NULL);
972 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
973 bkpinfo->manual_cd_tray = FALSE;
974 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
975 bkpinfo->media_device[0] = '\0';
976 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
977 bkpinfo->media_size[i] = -1;
978 }
979 bkpinfo->boot_loader = '\0';
980 bkpinfo->boot_device[0] = '\0';
981 bkpinfo->zip_exe[0] = '\0';
982 bkpinfo->zip_suffix[0] = '\0';
983 bkpinfo->restore_path[0] = '\0';
984 bkpinfo->use_lzo = FALSE;
985 bkpinfo->use_gzip = FALSE;
986 bkpinfo->do_not_compress_these[0] = '\0';
987 bkpinfo->verify_data = FALSE;
988 bkpinfo->backup_data = FALSE;
989 bkpinfo->restore_data = FALSE;
990 bkpinfo->disaster_recovery =
991 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
992 if (bkpinfo->disaster_recovery) {
993 strcpy(bkpinfo->isodir, "/");
994 } else {
995 strcpy(bkpinfo->isodir, "/root/images/mondo");
996 }
997 strcpy(bkpinfo->prefix, STD_PREFIX);
998
999 bkpinfo->scratchdir[0] = '\0';
1000 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
1001 sprintf(bkpinfo->tmpdir, "%s/tmpfs/mondo.tmp.%d", "/tmp", (int) (random() % 32768)); // for mondorestore
1002 bkpinfo->optimal_set_size = 0;
1003 bkpinfo->backup_media_type = none;
1004 strcpy(bkpinfo->include_paths, "/");
1005 bkpinfo->exclude_paths[0] = '\0';
1006 bkpinfo->call_before_iso[0] = '\0';
1007 bkpinfo->call_make_iso[0] = '\0';
1008 bkpinfo->call_burn_iso[0] = '\0';
1009 bkpinfo->call_after_iso[0] = '\0';
1010 bkpinfo->image_devs[0] = '\0';
1011 bkpinfo->postnuke_tarball[0] = '\0';
1012 bkpinfo->kernel_path[0] = '\0';
1013 bkpinfo->nfs_mount[0] = '\0';
1014 bkpinfo->nfs_remote_dir[0] = '\0';
1015 bkpinfo->wipe_media_first = FALSE;
1016 bkpinfo->differential = FALSE;
1017 bkpinfo->cdrw_speed = 0;
1018// patch by Herman Kuster
1019 bkpinfo->differential = 0;
1020// patch end
1021 bkpinfo->compression_level = 3;
1022}
1023
1024
1025
1026
1027/**
1028 * Get the remaining free space (in MB) on @p partition.
1029 * @param partition The partition to check free space on (either a device or a mountpoint).
1030 * @return The free space on @p partition, in MB.
1031 */
1032long free_space_on_given_partition(char *partition)
1033{
1034 char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1035 long res;
1036
1037 assert_string_is_neither_NULL_nor_zerolength(partition);
1038
1039 sprintf(command, "df -m -P %s &> /dev/null", partition);
1040 if (system(command)) {
1041 return (-1);
1042 } // partition does not exist
1043 sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1044 partition);
1045 strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1046 if (strlen(out_sz) == 0) {
1047 return (-1);
1048 } // error within df, probably
1049 res = atol(out_sz);
1050 return (res);
1051}
1052
1053
1054
1055/**
1056 * Check the user's system for sanity. Checks performed:
1057 * - make sure user has enough RAM (32mb required, 64mb recommended)
1058 * - make sure user has enough free space in @c /
1059 * - check kernel for ramdisk support
1060 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1061 * - make sure CD-ROM is unmounted
1062 * - make sure /etc/modules.conf exists
1063 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1064 *
1065 * @return number of problems with the user's setup (0 for success)
1066 */
1067int some_basic_system_sanity_checks()
1068{
1069
1070 /*@ buffers ************ */
1071 char tmp[MAX_STR_LEN];
1072 // char command[MAX_STR_LEN];
1073
1074 /*@ int's *************** */
1075 int retval = 0;
1076 long Lres;
1077
1078
1079 mvaddstr_and_log_it(g_currentY, 0,
1080 "Checking sanity of your Linux distribution");
1081#ifndef __FreeBSD__
1082 if (system("which mkfs.vfat &> /dev/null")
1083 && !system("which mkfs.msdos &> /dev/null")) {
1084 log_it
1085 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1086 run_program_and_log_output
1087 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1088 }
1089 strcpy(tmp,
1090 call_program_and_get_last_line_of_output
1091 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1092 if (atol(tmp) < 35000) {
1093 retval++;
1094 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1095 }
1096 if (atol(tmp) < 66000) {
1097 log_to_screen
1098 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1099 }
1100#endif
1101
1102 Lres = free_space_on_given_partition(MINDI_CACHE);
1103 log_it("Free space on partition of %s = %ld MB", MINDI_CACHE, Lres);
1104
1105 if (Lres < 50) {
1106 sprintf(tmp, "The partition of %s has <50MB free. Please free up space or enlarge the partition or make %s a symbolic link.", MINDI_CACHE, MINDI_CACHE);
1107 fatal_error(tmp);
1108 }
1109
1110 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1111 retval++;
1112 log_to_screen
1113 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1114 fatal_error
1115 ("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. :)");
1116 }
1117#ifndef __FreeBSD__
1118 if (run_program_and_log_output
1119 ("grep ramdisk /proc/devices", FALSE)) {
1120 if (!ask_me_yes_or_no
1121 ("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?"))
1122 {
1123 // retval++;
1124 log_to_screen
1125 ("It looks as if your kernel lacks ramdisk and initrd support.");
1126 log_to_screen
1127 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1128 }
1129 }
1130#endif
1131 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1132 retval += whine_if_not_found("mkisofs");
1133 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1134 retval += whine_if_not_found("cdrecord");
1135 }
1136 retval += whine_if_not_found("bzip2");
1137 retval += whine_if_not_found("gzip");
1138 retval += whine_if_not_found("awk");
1139 retval += whine_if_not_found("md5sum");
1140 retval += whine_if_not_found("strings");
1141 retval += whine_if_not_found("mindi");
1142 retval += whine_if_not_found("buffer");
1143
1144 // abort if Windows partition but no ms-sys and parted
1145 if (!run_program_and_log_output
1146 ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1147 ||
1148 !run_program_and_log_output
1149 ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1150 log_to_screen("I think you have a Windows 9x partition.");
1151 retval += whine_if_not_found("parted");
1152#ifndef __IA64__
1153 /* IA64 always has one vfat partition for EFI even without Windows */
1154 // retval +=
1155 if (!find_home_of_exe("ms-sys")) {
1156 log_to_screen("Please install ms-sys just in case.");
1157 }
1158#endif
1159 }
1160
1161 if (!find_home_of_exe("cmp")) {
1162 if (!find_home_of_exe("true")) {
1163 whine_if_not_found("cmp");
1164 } else {
1165 log_to_screen
1166 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1167 if (run_program_and_log_output
1168 ("cp -f `which true` /usr/bin/cmp", 0)) {
1169 fatal_error("Failed to create dummy 'cmp' file.");
1170 }
1171 }
1172 }
1173 run_program_and_log_output
1174 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1175 strcpy(tmp,
1176 call_program_and_get_last_line_of_output
1177 ("mount | grep -E \"cdr(om|w)\""));
1178 if (strcmp("", tmp)) {
1179 if (strstr(tmp, "autofs")) {
1180 log_to_screen
1181 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1182 log_to_screen
1183 ("if a CD actually is inserted. If a CD is inserted, please");
1184 log_to_screen("eject it. Thank you.");
1185 log_it
1186 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1187 } else
1188 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1189 retval++;
1190 fatal_error
1191 ("Your CD-ROM drive is mounted. Please unmount it.");
1192 }
1193 }
1194#ifndef __FreeBSD__
1195 if (!does_file_exist("/etc/modules.conf")) {
1196 if (does_file_exist("/etc/conf.modules")) {
1197 log_it("Linking /etc/modules.conf to /etc/conf.modules");
1198 run_program_and_log_output
1199 ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1200 } else if (does_file_exist("/etc/modprobe.d")) {
1201 log_it
1202 ("Directory /etc/modprobe.d found. mindi will use its contents.");
1203 } else if (does_file_exist("/etc/modprobe.conf")) {
1204 log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1205 run_program_and_log_output
1206 ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1207 } else {
1208 retval++;
1209 log_to_screen
1210 ("Please find out what happened to /etc/modules.conf");
1211 }
1212 }
1213#endif
1214
1215 run_program_and_log_output("cat /etc/fstab", 5);
1216#ifdef __FreeBSD__
1217 run_program_and_log_output("vinum printconfig", 5);
1218#else
1219 run_program_and_log_output("cat /etc/raidtab", 5);
1220#endif
1221
1222 if (run_program_and_log_output("mindi -V", 1)) {
1223 log_to_screen("Could not ascertain mindi's version number.");
1224 log_to_screen
1225 ("You have not installed Mondo and/or Mindi properly.");
1226 log_to_screen("Please uninstall and reinstall them both.");
1227 fatal_error("Please reinstall Mondo and Mindi.");
1228 }
1229 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1230 if (run_program_and_log_output(tmp, 5)) {
1231 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1232 log_to_screen(tmp);
1233 log_to_screen
1234 ("Please run that command by hand and examine /var/log/mindi.log");
1235 log_to_screen
1236 ("for more information. Perhaps your /etc/fstab file is insane.");
1237 log_to_screen
1238 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1239 retval++;
1240 }
1241
1242 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1243 && !does_file_exist("/etc/raidtab")) {
1244 log_to_screen
1245 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1246 create_raidtab_from_mdstat("/etc/raidtab");
1247 }
1248
1249 if (retval) {
1250 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1251 } else {
1252 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1253 }
1254 return (retval);
1255}
1256
1257/**
1258 * Retrieve the line containing @p label from the config file.
1259 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1260 * @param label What to read from the file.
1261 * @param value Where to put it.
1262 * @return 0 for success, 1 for failure.
1263 */
1264int read_cfg_var(char *config_file, char *label, char *value)
1265{
1266 /*@ buffer ****************************************************** */
1267 char command[MAX_STR_LEN * 2];
1268 char tmp[MAX_STR_LEN];
1269
1270 /*@ end vars *************************************************** */
1271
1272 assert_string_is_neither_NULL_nor_zerolength(config_file);
1273 assert_string_is_neither_NULL_nor_zerolength(label);
1274 if (!does_file_exist(config_file)) {
1275 sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1276 config_file);
1277 log_to_screen(tmp);
1278 value[0] = '\0';
1279 return (1);
1280 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1281 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1282 return (0);
1283 } else {
1284 sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1285 label, config_file);
1286 strcpy(value, call_program_and_get_last_line_of_output(command));
1287 if (strlen(value) == 0) {
1288 return (1);
1289 } else {
1290 return (0);
1291 }
1292 }
1293}
1294
1295
1296
1297/**
1298 * Remount @c supermount if it was unmounted earlier.
1299 */
1300void remount_supermounts_if_necessary()
1301{
1302 if (g_remount_cdrom_at_end) {
1303 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1304 }
1305 if (g_remount_floppy_at_end) {
1306 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1307 }
1308}
1309
1310/**
1311 * Unmount @c supermount if it's mounted.
1312 */
1313void unmount_supermounts_if_necessary()
1314{
1315 if (run_program_and_log_output
1316 ("mount | grep cdrom | grep super", FALSE) == 0) {
1317 g_remount_cdrom_at_end = TRUE;
1318 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1319 }
1320 if (run_program_and_log_output
1321 ("mount | grep floppy | grep super", FALSE) == 0) {
1322 g_remount_floppy_at_end = TRUE;
1323 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1324 }
1325}
1326
1327/**
1328 * Whether we had to stop autofs (if so, restart it at end).
1329 */
1330bool g_autofs_stopped = FALSE;
1331
1332/**
1333 * Path to the autofs initscript ("" if none exists).
1334 */
1335char g_autofs_exe[MAX_STR_LEN];
1336
1337/**
1338 * Autofs initscript in Xandros Linux distribution.
1339 */
1340#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1341
1342/**
1343 * Autofs initscript in most Linux distributions.
1344 */
1345#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1346
1347/**
1348 * If autofs is mounted, stop it (restart at end).
1349 */
1350void stop_autofs_if_necessary()
1351{
1352 char tmp[MAX_STR_LEN];
1353
1354 g_autofs_exe[0] = '\0';
1355 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1356 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1357 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1358 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1359 }
1360
1361 if (!g_autofs_exe[0]) {
1362 log_msg(3, "No autofs detected.");
1363 } else {
1364 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1365// FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1366 sprintf(tmp, "%s stop", g_autofs_exe);
1367 if (run_program_and_log_output(tmp, 2)) {
1368 log_it("Failed to stop autofs - I assume it wasn't running");
1369 } else {
1370 g_autofs_stopped = TRUE;
1371 log_it("Stopped autofs OK");
1372 }
1373 }
1374}
1375
1376/**
1377 * If autofs was stopped earlier, restart it.
1378 */
1379void restart_autofs_if_necessary()
1380{
1381 char tmp[MAX_STR_LEN];
1382
1383 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1384 log_msg(3, "No autofs detected.");
1385 return;
1386 }
1387 sprintf(tmp, "%s start", g_autofs_exe);
1388 if (run_program_and_log_output(tmp, 2)) {
1389 log_it("Failed to start autofs");
1390 } else {
1391 g_autofs_stopped = FALSE;
1392 log_it("Started autofs OK");
1393 }
1394}
1395
1396
1397/**
1398 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1399 */
1400void mount_boot_if_necessary()
1401{
1402 char tmp[MAX_STR_LEN];
1403 char command[MAX_STR_LEN];
1404
1405 log_msg(1, "Started sub");
1406 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1407 g_boot_mountpt[0] = '\0';
1408 log_msg(4, "Done. Great. Seeting command to something");
1409 strcpy(command,
1410 "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1411 log_msg(4, "Cool. Command = '%s'", command);
1412 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1413 log_msg(4, "tmp = '%s'", tmp);
1414 if (tmp[0]) {
1415 log_it("/boot is at %s according to /etc/fstab", tmp);
1416 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1417 if (!run_program_and_log_output("mount /boot", 5)) {
1418 strcpy(g_boot_mountpt, "/boot");
1419 log_msg(1, "Mounted /boot");
1420 } else {
1421 log_it("...ignored cos it's a label or uuid :-)");
1422 }
1423 } else {
1424 sprintf(command, "mount | grep -E '^%s'", tmp);
1425 log_msg(3, "command = %s", command);
1426 if (run_program_and_log_output(command, 5)) {
1427 strcpy(g_boot_mountpt, tmp);
1428 sprintf(tmp,
1429 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1430 g_boot_mountpt);
1431 log_it(tmp);
1432 sprintf(tmp, "mount %s", g_boot_mountpt);
1433 if (run_program_and_log_output(tmp, 5)) {
1434 g_boot_mountpt[0] = '\0';
1435 log_msg(1, "Plan B");
1436 if (!run_program_and_log_output("mount /boot", 5)) {
1437 strcpy(g_boot_mountpt, "/boot");
1438 log_msg(1, "Plan B worked");
1439 } else {
1440 log_msg(1,
1441 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1442 }
1443 }
1444 }
1445 }
1446 }
1447 log_msg(1, "Ended sub");
1448}
1449
1450
1451/**
1452 * If we mounted /boot earlier, unmount it.
1453 */
1454void unmount_boot_if_necessary()
1455{
1456 char tmp[MAX_STR_LEN];
1457
1458 log_msg(3, "starting");
1459 if (g_boot_mountpt[0]) {
1460 sprintf(tmp, "umount %s", g_boot_mountpt);
1461 if (run_program_and_log_output(tmp, 5)) {
1462 log_it("WARNING - unable to unmount /boot");
1463 }
1464 }
1465 log_msg(3, "leaving");
1466}
1467
1468
1469
1470/**
1471 * Write a line to a configuration file. Writes a line of the form,
1472 * @c label @c value.
1473 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1474 * @param label What to call this bit of data you're writing.
1475 * @param value The bit of data you're writing.
1476 * @return 0 for success, 1 for failure.
1477 */
1478int write_cfg_var(char *config_file, char *label, char *value)
1479{
1480 /*@ buffers ***************************************************** */
1481 char command[MAX_STR_LEN * 2];
1482 char tempfile[MAX_STR_LEN];
1483 char tmp[MAX_STR_LEN];
1484
1485
1486 /*@ end vars *************************************************** */
1487 assert_string_is_neither_NULL_nor_zerolength(config_file);
1488 assert_string_is_neither_NULL_nor_zerolength(label);
1489 assert(value != NULL);
1490 if (!does_file_exist(config_file)) {
1491 sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1492 config_file);
1493 log_to_screen(tmp);
1494 return (1);
1495 }
1496 sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1497 if (does_file_exist(config_file)) {
1498 sprintf(command, "grep -vE '^%s .*$' %s > %s",
1499 label, config_file, tempfile);
1500 paranoid_system(command);
1501 }
1502 sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1503 paranoid_system(command);
1504 sprintf(command, "mv -f %s %s", tempfile, config_file);
1505 paranoid_system(command);
1506 unlink(tempfile);
1507 return (0);
1508}
1509
1510
1511/**
1512 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1513 * information to the logfile.
1514 */
1515void standard_log_debug_msg(int debug_level, const char *szFile,
1516 const char *szFunction, int nLine,
1517 const char *fmt, ...)
1518{
1519 va_list args;
1520 int i;
1521 static int depth = 0;
1522 char *tmp;
1523 FILE *fout;
1524
1525 if (depth > 5) {
1526 depth--;
1527 return;
1528 }
1529 depth++;
1530
1531 malloc_string(tmp);
1532
1533 if (debug_level <= g_loglevel) {
1534 va_start(args, fmt);
1535 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1536 return;
1537 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1538
1539 // add tabs to distinguish log levels
1540 if (debug_level > 0) {
1541 for (i = 1; i < debug_level; i++)
1542 fprintf(fout, "\t");
1543 if (getpid() == g_main_pid)
1544 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1545 nLine);
1546 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1547 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1548 nLine);
1549 else
1550 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1551 szFunction, nLine);
1552 }
1553 vfprintf(fout, fmt, args);
1554
1555 // do not slow down the progran if standard debug level
1556 // must be enabled: if no flush, the log won't be up-to-date if there
1557 // is a segfault
1558 //if (g_dwDebugLevel != 1)
1559
1560 va_end(args);
1561 fprintf(fout, "\n");
1562 paranoid_fclose(fout);
1563 }
1564 depth--;
1565 paranoid_free(tmp);
1566}
1567
1568/**
1569 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1570 */
1571void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1572 ...) = standard_log_debug_msg;
1573
1574
1575/**
1576 * If @p y, malloc @p x, else free @p x.
1577 * @bug This function seems orphaned. Please remove.
1578 */
1579#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1580
1581/**
1582 * Allocate or free important globals, depending on @p mal.
1583 * @param mal If TRUE, malloc; if FALSE, free.
1584 */
1585void do_libmondo_global_strings_thing(int mal)
1586{
1587 if (mal) {
1588 iamhere("Malloc'ing globals");
1589 malloc_string(g_boot_mountpt);
1590 malloc_string(g_mondo_home);
1591 malloc_string(g_tmpfs_mountpt);
1592 malloc_string(g_erase_tmpdir_and_scratchdir);
1593 malloc_string(g_serial_string);
1594 malloc_string(g_magicdev_command);
1595 } else {
1596 iamhere("Freeing globals");
1597 paranoid_free(g_boot_mountpt);
1598 paranoid_free(g_mondo_home);
1599 paranoid_free(g_tmpfs_mountpt);
1600 paranoid_free(g_erase_tmpdir_and_scratchdir);
1601 paranoid_free(g_serial_string);
1602 paranoid_free(g_magicdev_command);
1603 }
1604
1605 /*
1606 char**list_of_arrays[] = {
1607 &g_boot_mountpt,
1608 &g_mondo_home,
1609 &g_tmpfs_mountpt,
1610 &g_erase_tmpdir_and_scratchdir,
1611 &g_serial_string,
1612 &g_magicdev_command,
1613 NULL};
1614
1615 char**ppcurr;
1616 int i;
1617
1618 for(i=0;list_of_arrays[i];i++)
1619 {
1620 log_msg(5, "Allocating %d", i);
1621 ppcurr = list_of_arrays[i];
1622 if (mal)
1623 { *ppcurr = malloc(MAX_STR_LEN); }
1624 else
1625 {
1626 if (*ppcurr)
1627 {
1628 free(*ppcurr);
1629 }
1630 }
1631 }
1632 log_msg(5, "Returning");
1633 */
1634}
1635
1636/**
1637 * Allocate important globals.
1638 * @see do_libmondo_global_strings_thing
1639 */
1640void malloc_libmondo_global_strings(void)
1641{
1642 do_libmondo_global_strings_thing(1);
1643}
1644
1645/**
1646 * Free important globals.
1647 * @see do_libmondo_global_strings_thing
1648 */
1649void free_libmondo_global_strings(void)
1650{
1651 do_libmondo_global_strings_thing(0);
1652}
1653
1654
1655
1656/**
1657 * Stop @c magicdev if it's running.
1658 * The command used to start it is saved in @p g_magicdev_command.
1659 */
1660void stop_magicdev_if_necessary()
1661{
1662 strcpy(g_magicdev_command,
1663 call_program_and_get_last_line_of_output
1664 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1665 if (g_magicdev_command[0]) {
1666 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1667 paranoid_system("killall magicdev");
1668 }
1669}
1670
1671
1672/**
1673 * Restart magicdev if it was stopped.
1674 */
1675void restart_magicdev_if_necessary()
1676{
1677 char *tmp;
1678
1679 malloc_string(tmp);
1680 if (g_magicdev_command && g_magicdev_command[0]) {
1681 sprintf(tmp, "%s &", g_magicdev_command);
1682 paranoid_system(tmp);
1683 }
1684 paranoid_free(tmp);
1685}
1686
1687/* @} - end of utilityGroup */
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