source: MondoRescue/branches/2.06/mondo/mondo/common/libmondo-tools.c@ 273

Last change on this file since 273 was 273, checked in by bcornec, 18 years ago

Patches from Sébastien Aperghis-Tramoni <maddingue@…>

replace several occurences of "cat .. | grep .."
or with similar commands that accept filenames as arguments.
+ some sort | uniq replaced by sort -u
  • Property svn:keywords set to Id
File size: 44.5 KB
Line 
1/* libmondo-tools.c misc tools
2 $Id: libmondo-tools.c 273 2006-01-03 15:09:12Z bcornec $
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
187/*@unused@*/
188//static char cvsid[] = "$Id: libmondo-tools.c 273 2006-01-03 15:09:12Z bcornec $";
189
190extern int g_tape_buffer_size_MB;
191extern char *g_erase_tmpdir_and_scratchdir;
192extern char *g_serial_string;
193extern bool g_text_mode;
194extern int g_currentY;
195extern int g_current_media_number;
196
197/**
198 * @addtogroup globalGroup
199 * @{
200 */
201bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
202 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
203bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
204double g_kernel_version;
205
206/**
207 * The place where /boot is mounted.
208 */
209char *g_boot_mountpt = NULL;
210
211/**
212 * The location of Mondo's home directory.
213 */
214char *g_mondo_home = NULL;
215
216/**
217 * The serial string (used to differentiate between backups) of the current backup.
218 */
219char *g_serial_string = NULL;
220
221/**
222 * The location where tmpfs is mounted, or "" if it's not mounted.
223 */
224char *g_tmpfs_mountpt = NULL;
225char *g_magicdev_command = NULL;
226
227/**
228 * The default maximum level to log messages at or below.
229 */
230int g_loglevel = DEFAULT_DEBUG_LEVEL;
231
232/* @} - end of globalGroup */
233
234
235extern pid_t g_buffer_pid;
236extern pid_t g_main_pid;
237
238extern t_bkptype g_backup_media_type;
239
240extern bool am_I_in_disaster_recovery_mode(void);
241
242
243/**
244 * @addtogroup utilityGroup
245 * @{
246 */
247/**
248 * Assertion handler. Prints a friendly message to the user,
249 * offering to ignore all, dump core, break to debugger,
250 * exit, or ignore. Intended to be used with an assert() macro.
251 *
252 * @param file The file in which the assertion triggered.
253 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
254 * @param line The line number of the assert() statement.
255 * @param exp The expression that failed (as a string).
256 */
257void _mondo_assert_fail(const char *file,
258 const char *function, int line, const char *exp)
259{
260 static int ignoring_assertions = 0;
261 bool is_valid = TRUE;
262
263 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
264 function);
265 if (ignoring_assertions) {
266 log_it("Well, the user doesn't care...");
267 return;
268 }
269#ifndef _XWIN
270 if (!g_text_mode)
271 newtSuspend();
272#endif
273 printf("ASSERTION FAILED: `%s'\n", exp);
274 printf("\tat %s:%d in %s\n\n", file, line, function);
275 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
276 do {
277 is_valid = TRUE;
278 switch (toupper(getchar())) {
279 case 'A': // ignore (A)ll
280 ignoring_assertions = 1;
281 break;
282 case 'B': // a(B)ort
283 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
284 raise(SIGABRT);
285 break; /* "can't get here" */
286 case 'D': // (D)ebug, aka asm("int 3")
287#ifdef __IA32__
288 __asm__ __volatile__("int $3"); // break to debugger
289#endif
290 break;
291 case 'E': // (E)xit
292 fatal_error("Failed assertion -- see above for details");
293 break; /* "can't get here" */
294 case 'I': // (I)gnore
295 break;
296 /* These next two work as follows:
297 the `default' catches the user's invalid choice and says so;
298 the '\n' catches the newline on the end and prints the prompt again.
299 */
300 case '\n':
301 printf
302 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
303 break;
304 default:
305 is_valid = FALSE;
306 printf("Invalid choice.\n");
307 break;
308 }
309 } while (!is_valid);
310
311 if (ignoring_assertions) {
312 log_it("Ignoring ALL assertions from now on.");
313 } else {
314 log_it("Ignoring assertion: %s", exp);
315 }
316
317 getchar(); // skip \n
318
319#ifndef _XWIN
320 if (!g_text_mode)
321 newtResume();
322#endif
323}
324
325/**
326 * Clean's up users' KDE desktops.
327 * @bug Details about this function are unknown.
328 */
329void clean_up_KDE_desktop_if_necessary(void)
330{
331 char *tmp;
332
333 malloc_string(tmp);
334 strcpy(tmp,
335 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
336file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
337awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
338else { print $0;};}'$file.old > $file ; fi ; done");
339 run_program_and_log_output(tmp, 5);
340 paranoid_free(tmp);
341}
342
343
344/**
345 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
346 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
347 *
348 * @param home_sz String to store the home directory ("" if it could not be found).
349 * @return 0 for success, nonzero for failure.
350 */
351int find_and_store_mondoarchives_home(char *home_sz)
352{
353 assert(home_sz != NULL);
354 strcpy(home_sz, MONDO_LIB);
355 return (0);
356}
357
358
359char *get_architecture()
360{
361#ifdef __IA32__
362 return ("i386");
363#endif
364#ifdef __IA64__
365 return ("ia64");
366#endif
367 return ("unknown");
368}
369
370
371
372double get_kernel_version()
373{
374 char *p, tmp[200];
375 double d;
376#ifdef __FreeBSD__
377 // JOSH - FIXME :)
378 d = 5.2; // :-)
379#else
380 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
381 p = strchr(tmp, '.');
382 if (p) {
383 p = strchr(++p, '.');
384 if (p) {
385 while (*p) {
386 *p = *(p + 1);
387 p++;
388 }
389 }
390 }
391// log_msg(1, "tmp = '%s'", tmp);
392 d = atof(tmp);
393#endif
394 log_msg(1, "g_kernel_version = %f", d);
395 return (d);
396}
397
398
399
400
401
402/**
403 * Get the current time.
404 * @return number of seconds since the epoch.
405 */
406long get_time()
407{
408 return (long) time((void *) 0);
409}
410
411
412
413
414
415
416
417/**
418 * Initialize a RAID volume structure, setting fields to zero. The
419 * actual hard drive is unaffected.
420 *
421 * @param raidrec The RAID volume structure to initialize.
422 * @note This function is system dependent.
423 */
424#ifdef __FreeBSD__
425void initialize_raidrec(struct vinum_volume *raidrec)
426{
427 int i, j;
428 raidrec->volname[0] = '\0';
429 raidrec->plexes = 0;
430 for (i = 0; i < 9; ++i) {
431 raidrec->plex[i].raidlevel = -1;
432 raidrec->plex[i].stripesize = 0;
433 raidrec->plex[i].subdisks = 0;
434 for (j = 0; j < 9; ++j) {
435 strcpy(raidrec->plex[i].sd[j].which_device, "");
436 }
437 }
438}
439#else
440void initialize_raidrec(struct raid_device_record *raidrec)
441{
442 assert(raidrec != NULL);
443 raidrec->raid_device[0] = '\0';
444 raidrec->raid_level = 0;
445 raidrec->chunk_size = 4;
446 raidrec->persistent_superblock = 1;
447 raidrec->data_disks.entries = 0;
448 raidrec->spare_disks.entries = 0;
449 raidrec->parity_disks.entries = 0;
450 raidrec->failed_disks.entries = 0;
451 raidrec->additional_vars.entries = 0;
452}
453#endif
454
455
456
457
458/**
459 * Insert modules that Mondo requires.
460 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
461 * @c msdosfs and @c ext2fs for FreeBSD.
462 */
463void insmod_crucial_modules(void)
464{
465#ifdef __FreeBSD__
466 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
467 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
468#else
469 system("modprobe dos &> /dev/null");
470 system("modprobe fat &> /dev/null");
471 system("modprobe vfat &> /dev/null");
472 // system("modprobe osst &> /dev/null");
473#endif
474}
475
476
477/**
478 * Log a trace message to the trace file.
479 * @bug This function seems orphaned. Please remove.
480 */
481void log_trace(char *o)
482{
483 /*@ pointers **************************************************** */
484 FILE *fout;
485
486 /*@ buffers ***************************************************** */
487 char output[MAX_STR_LEN];
488
489 /*@ int ****************************************************** */
490 int i;
491
492 /*@ end vars *************************************************** */
493
494 if (o[0] == '\0') {
495 return;
496 }
497 strcpy(output, o);
498 i = (int) strlen(output);
499 if (i <= 0) {
500 return;
501 }
502 if (output[i - 1] < 32) {
503 output[i - 1] = '\0';
504 }
505 if (g_text_mode
506 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
507 printf("%s\n", output);
508 }
509
510 fout = fopen(MONDO_TRACEFILE, "a");
511 if (fout) {
512 fprintf(fout, "%s\n", output);
513 paranoid_fclose(fout);
514 } else {
515 log_OS_error("Cannot write to tracefile");
516 }
517}
518
519
520
521
522
523/**
524 * Finish configuring the backup information structure. Call this function
525 * to set the parameters that depend on those that can be given on the command
526 * line.
527 *
528 * @param bkpinfo The backup information structure. Fields modified/used:
529 * - Used: @c bkpinfo->backup_data
530 * - Used: @c bkpinfo->backup_media_type
531 * - Used: @c bkpinfo->cdrw_speed
532 * - Used: @c bkpinfo->compression_level
533 * - Used: @c bkpinfo->include_paths
534 * - Used: @c bkpinfo->prefix
535 * - Used: @c bkpinfo->isodir
536 * - Used: @c bkpinfo->manual_cd_tray
537 * - Used: @c bkpinfo->make_cd_use_lilo
538 * - Used: @c bkpinfo->media_device
539 * - Used: @c bkpinfo->nfs_mount
540 * - Used: @c bkpinfo->nonbootable_backup
541 * - Used: @c bkpinfo->scratchdir
542 * - Used: @c bkpinfo->tmpdir
543 * - Used: @c bkpinfo->use_lzo
544 * - Modified: @c bkpinfo->call_before_iso
545 * - Modified: @c bkpinfo->call_make_iso
546 * - Modified: @c bkpinfo->optimal_set_size
547 * - Modified: @c bkpinfo->zip_exe
548 * - Modified: @c bkpinfo->zip_suffix
549 *
550 * @return number of errors, or 0 for success.
551 * @note Also creates directories that are specified in the @c bkpinfo structure but
552 * do not exist.
553 */
554int post_param_configuration(struct s_bkpinfo *bkpinfo)
555{
556 char *extra_cdrom_params;
557 char *mondo_mkisofs_sz;
558 char *command;
559 char *mtpt;
560 char *hostname, *ip_address;
561 int retval = 0;
562 long avm = 0;
563 char *colon;
564 char *cdr_exe;
565 char *tmp;
566 char call_before_iso_user[MAX_STR_LEN] = "\0";
567 int rdsiz_MB;
568 char *iso_dev;
569 char *iso_mnt;
570 char *iso_tmp;
571 char *iso_path;
572
573 assert(bkpinfo != NULL);
574 malloc_string(extra_cdrom_params);
575 malloc_string(mondo_mkisofs_sz);
576 malloc_string(command);
577 malloc_string(mtpt);
578 malloc_string(hostname);
579 malloc_string(ip_address);
580 malloc_string(cdr_exe);
581 malloc_string(tmp);
582 malloc_string(iso_dev);
583 malloc_string(iso_mnt);
584 malloc_string(iso_tmp);
585 malloc_string(iso_path);
586 bkpinfo->optimal_set_size =
587 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 4 : 8) *
588 1024;
589
590 log_msg(1, "Foo");
591 if (bkpinfo->backup_media_type == tape) {
592 log_msg(1, "Bar");
593 sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
594 log_msg(1, "tmp = '%s'", tmp);
595 if (run_program_and_log_output(tmp, 3)) {
596 fatal_error
597 ("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.");
598 }
599 }
600 make_hole_for_dir(bkpinfo->scratchdir);
601 make_hole_for_dir(bkpinfo->tmpdir);
602 if (bkpinfo->backup_media_type == iso)
603 make_hole_for_dir(bkpinfo->isodir);
604
605 run_program_and_log_output("uname -a", 5);
606 run_program_and_log_output("cat /etc/*issue*", 5);
607 sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
608 sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
609 paranoid_system(command);
610 rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
611#ifdef __FreeBSD__
612 strcpy(tmp,
613 call_program_and_get_last_line_of_output
614 ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
615 avm += atol(tmp);
616 strcpy(tmp,
617 call_program_and_get_last_line_of_output
618 ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
619 avm += atol(tmp);
620 sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
621 g_tmpfs_mountpt);
622#else
623 strcpy(tmp,
624 call_program_and_get_last_line_of_output
625 ("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1"));
626 avm += atol(tmp);
627 sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
628 g_tmpfs_mountpt, rdsiz_MB, 'm');
629 run_program_and_log_output("cat /proc/cpuinfo", 5);
630 run_program_and_log_output
631 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
632 5);
633#endif
634 if (avm / 1024 > rdsiz_MB * 3) {
635 if (run_program_and_log_output(command, 5)) {
636 g_tmpfs_mountpt[0] = '\0';
637 log_it("Failed to mount tmpfs");
638 } else {
639 log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
640 }
641 } else {
642 g_tmpfs_mountpt[0] = '\0';
643 log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
644 }
645
646 if (bkpinfo->use_lzo) {
647 strcpy(bkpinfo->zip_exe, "lzop");
648 strcpy(bkpinfo->zip_suffix, "lzo");
649 } else if (bkpinfo->compression_level != 0) {
650 strcpy(bkpinfo->zip_exe, "bzip2");
651 strcpy(bkpinfo->zip_suffix, "bz2");
652 } else {
653 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
654 }
655
656// DVD
657
658 if (bkpinfo->backup_media_type == dvd) {
659 extra_cdrom_params[0] = '\0';
660 mondo_mkisofs_sz[0] = '\0';
661 if (find_home_of_exe("growisofs")) {
662 strcpy(cdr_exe, "growisofs");
663 } // unlikely to be used
664 else {
665 fatal_error("Please install growisofs.");
666 }
667 if (bkpinfo->nonbootable_backup) {
668 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
669 } else if
670#ifdef __FreeBSD__
671 (TRUE)
672#else
673 (bkpinfo->make_cd_use_lilo)
674#endif
675#ifdef __IA64__
676 {
677 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
678 }
679#else
680 {
681 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
682 }
683#endif
684 else
685 {
686 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
687 }
688 if (bkpinfo->manual_cd_tray) {
689 fatal_error("Manual CD tray + DVD not supported yet.");
690 // -m isn't supported by growisofs, BTW...
691 } else {
692 sprintf(bkpinfo->call_make_iso,
693 "%s %s -Z %s . 2>> _ERR_",
694 mondo_mkisofs_sz,
695 extra_cdrom_params, bkpinfo->media_device);
696 }
697 if (getenv ("SUDO_COMMAND")) {
698 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
699 }
700 log_msg(2, "call_make_iso (DVD res) is ... %s",
701 bkpinfo->call_make_iso);
702 } // end of DVD code
703
704// CD-R or CD-RW
705 if (bkpinfo->backup_media_type == cdrw
706 || bkpinfo->backup_media_type == cdr) {
707 extra_cdrom_params[0] = '\0';
708 if (!bkpinfo->manual_cd_tray) {
709 strcat(extra_cdrom_params, "-waiti ");
710 }
711 if (bkpinfo->backup_media_type == cdrw) {
712 strcat(extra_cdrom_params, "blank=fast ");
713 }
714 if (find_home_of_exe("cdrecord")) {
715 strcpy(cdr_exe, "cdrecord");
716 } else if (find_home_of_exe("dvdrecord")) {
717 strcpy(cdr_exe, "dvdrecord");
718 } else {
719 fatal_error("Please install either cdrecord or dvdrecord.");
720 }
721 if (bkpinfo->nonbootable_backup) {
722 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
723 } else if
724#ifdef __FreeBSD__
725 (TRUE)
726#else
727 (bkpinfo->make_cd_use_lilo)
728#endif
729#ifdef __IA64__
730 {
731 strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
732 }
733#else
734 {
735 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
736 }
737#endif
738 else
739 {
740 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
741 }
742 if (bkpinfo->manual_cd_tray) {
743 if (bkpinfo->call_before_iso[0] == '\0') {
744 sprintf(bkpinfo->call_before_iso,
745 "%s -o %s/temporary.iso . 2>> _ERR_",
746 mondo_mkisofs_sz, bkpinfo->tmpdir);
747 } else {
748 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
749 sprintf (bkpinfo->call_before_iso,
750 "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
751 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
752 }
753 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
754 sprintf(bkpinfo->call_make_iso,
755 "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
756 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
757 extra_cdrom_params, bkpinfo->media_device,
758 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
759 } else {
760 sprintf(bkpinfo->call_make_iso,
761 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
762 mondo_mkisofs_sz, cdr_exe,
763 (bkpinfo->please_dont_eject) ? " " : "-eject",
764 extra_cdrom_params, bkpinfo->media_device,
765 bkpinfo->cdrw_speed);
766 }
767 } // end of CD code
768
769 /*
770 if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
771 {
772 sprintf (tmp,
773 "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
774 bkpinfo->media_device, bkpinfo->internal_tape_block_size);
775 if (system(tmp))
776 {
777 retval++;
778 fprintf (stderr,
779 "Cannot write to tape device. Is the tape set read-only?\n");
780 }
781 } // end of tape code
782 */
783
784
785 if (bkpinfo->backup_media_type == iso) {
786
787/* Patch by Conor Daly <conor.daly@met.ie>
788 * 23-june-2004
789 * Break up isodir into iso_mnt and iso_path
790 * These will be used along with iso-dev at restore time
791 * to locate the ISOs where ever they're mounted
792 */
793
794 log_it("isodir = %s", bkpinfo->isodir);
795 sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
796 bkpinfo->isodir);
797 log_it("command = %s", command);
798 log_it("res of it = %s",
799 call_program_and_get_last_line_of_output(command));
800 sprintf(iso_dev, "%s",
801 call_program_and_get_last_line_of_output(command));
802 sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
803 write_one_liner_data_file(tmp,
804 call_program_and_get_last_line_of_output
805 (command));
806
807 sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
808 iso_dev);
809 log_it("command = %s", command);
810 log_it("res of it = %s",
811 call_program_and_get_last_line_of_output(command));
812 sprintf(iso_mnt, "%s",
813 call_program_and_get_last_line_of_output(command));
814 sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
815 write_one_liner_data_file(tmp,
816 call_program_and_get_last_line_of_output
817 (command));
818 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
819 sprintf(iso_tmp, "%s", bkpinfo->isodir);
820 if (strlen(iso_tmp) < strlen(iso_mnt)) {
821 iso_path[0] = '\0';
822 } else {
823 sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
824 }
825 sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
826 write_one_liner_data_file(tmp, iso_path);
827 log_it("isodir: %s", iso_path);
828 sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
829 write_one_liner_data_file(tmp, bkpinfo->prefix);
830 log_it("iso-prefix: %s", bkpinfo->prefix);
831
832/* End patch */
833 } // end of iso code
834
835 if (bkpinfo->backup_media_type == nfs) {
836 strcpy(hostname, bkpinfo->nfs_mount);
837 colon = strchr(hostname, ':');
838 if (!colon) {
839 log_it("nfs mount doesn't have a colon in it");
840 retval++;
841 } else {
842 struct hostent *hent;
843
844 *colon = '\0';
845 hent = gethostbyname(hostname);
846 if (!hent) {
847 log_it("Can't resolve NFS mount (%s): %s", hostname,
848 hstrerror(h_errno));
849 retval++;
850 } else {
851 strcpy(ip_address, inet_ntoa
852 ((struct in_addr)
853 *((struct in_addr *) hent->h_addr)));
854 strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
855 strcpy(bkpinfo->nfs_mount, ip_address);
856 }
857 }
858 store_nfs_config(bkpinfo);
859 }
860
861 log_it("Finished processing incoming params");
862 if (retval) {
863 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
864 }
865 sprintf(tmp, "%s", MONDO_TMPISOS); /* added #define 22 apr 2002 */
866 if (does_file_exist(tmp)) {
867 unlink(tmp);
868 }
869 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
870 log_it("tmpdir or scratchdir are blank/missing");
871 retval++;
872 }
873 if (bkpinfo->include_paths[0] == '\0') {
874 // fatal_error ("Why no backup path?");
875 strcpy(bkpinfo->include_paths, "/");
876 }
877 chmod(bkpinfo->scratchdir, 0700);
878 chmod(bkpinfo->tmpdir, 0700);
879 g_backup_media_type = bkpinfo->backup_media_type;
880 paranoid_free(mtpt);
881 paranoid_free(extra_cdrom_params);
882 paranoid_free(mondo_mkisofs_sz);
883 paranoid_free(command);
884 paranoid_free(hostname);
885 paranoid_free(ip_address);
886 paranoid_free(cdr_exe);
887 paranoid_free(tmp);
888 paranoid_free(iso_dev);
889 paranoid_free(iso_mnt);
890 paranoid_free(iso_tmp);
891 paranoid_free(iso_path);
892 return (retval);
893}
894
895
896
897/**
898 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
899 * Seeds the random-number generator, loads important modules, checks the sanity
900 * of the user's Linux distribution, and deletes logfile.
901 * @param bkpinfo The backup information structure. Will be initialized.
902 * @return number of errors (0 for success)
903 */
904int pre_param_configuration(struct s_bkpinfo *bkpinfo)
905{
906 int res = 0;
907
908 make_hole_for_dir(MNT_CDROM);
909 assert(bkpinfo != NULL);
910 srandom((unsigned long) (time(NULL)));
911 insmod_crucial_modules();
912 reset_bkpinfo(bkpinfo); // also sets defaults ('/'=backup path, 3=compression level)
913 if (bkpinfo->disaster_recovery) {
914 if (!does_nonMS_partition_exist()) {
915 fatal_error
916 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
917 }
918 }
919
920 unlink(MONDO_TRACEFILE);
921 run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
922 if (find_and_store_mondoarchives_home(g_mondo_home)) {
923 fprintf(stderr,
924 "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");
925 res++;
926 return (res);
927 }
928 res += some_basic_system_sanity_checks();
929 if (res) {
930 log_it("Your distribution did not pass Mondo's sanity test.");
931 }
932 g_current_media_number = 1;
933 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
934 return (res);
935}
936
937
938
939
940/**
941 * Reset all fields of the backup information structure to a sensible default.
942 * @param bkpinfo The @c bkpinfo to reset.
943 */
944void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
945{
946 int i;
947
948 log_msg(1, "Hi");
949 assert(bkpinfo != NULL);
950 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
951 bkpinfo->manual_cd_tray = FALSE;
952 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
953 bkpinfo->media_device[0] = '\0';
954 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
955 bkpinfo->media_size[i] = -1;
956 }
957 bkpinfo->boot_loader = '\0';
958 bkpinfo->boot_device[0] = '\0';
959 bkpinfo->zip_exe[0] = '\0';
960 bkpinfo->zip_suffix[0] = '\0';
961 bkpinfo->restore_path[0] = '\0';
962 bkpinfo->use_lzo = FALSE;
963 bkpinfo->do_not_compress_these[0] = '\0';
964 bkpinfo->verify_data = FALSE;
965 bkpinfo->backup_data = FALSE;
966 bkpinfo->restore_data = FALSE;
967 bkpinfo->disaster_recovery =
968 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
969 if (bkpinfo->disaster_recovery) {
970 strcpy(bkpinfo->isodir, "/");
971 } else {
972 strcpy(bkpinfo->isodir, "/root/images/mondo");
973 }
974 strcpy(bkpinfo->prefix, STD_PREFIX);
975
976 bkpinfo->scratchdir[0] = '\0';
977 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
978 sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768)); // for mondorestore
979 bkpinfo->optimal_set_size = 0;
980 bkpinfo->backup_media_type = none;
981 strcpy(bkpinfo->include_paths, "/");
982 bkpinfo->exclude_paths[0] = '\0';
983 bkpinfo->call_before_iso[0] = '\0';
984 bkpinfo->call_make_iso[0] = '\0';
985 bkpinfo->call_burn_iso[0] = '\0';
986 bkpinfo->call_after_iso[0] = '\0';
987 bkpinfo->image_devs[0] = '\0';
988 bkpinfo->postnuke_tarball[0] = '\0';
989 bkpinfo->kernel_path[0] = '\0';
990 bkpinfo->nfs_mount[0] = '\0';
991 bkpinfo->nfs_remote_dir[0] = '\0';
992 bkpinfo->wipe_media_first = FALSE;
993 bkpinfo->differential = FALSE;
994 bkpinfo->cdrw_speed = 0;
995// patch by Herman Kuster
996 bkpinfo->differential = 0;
997// patch end
998 bkpinfo->compression_level = 3;
999}
1000
1001
1002
1003
1004/**
1005 * Get the remaining free space (in MB) on @p partition.
1006 * @param partition The partition to check free space on (either a device or a mountpoint).
1007 * @return The free space on @p partition, in MB.
1008 */
1009long free_space_on_given_partition(char *partition)
1010{
1011 char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1012 long res;
1013
1014 assert_string_is_neither_NULL_nor_zerolength(partition);
1015
1016 sprintf(command, "df -m %s &> /dev/null", partition);
1017 if (system(command)) {
1018 return (-1);
1019 } // partition does not exist
1020 sprintf(command, "df -m %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1021 partition);
1022 strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1023 if (strlen(out_sz) == 0) {
1024 return (-1);
1025 } // error within df, probably
1026 res = atol(out_sz);
1027 return (res);
1028}
1029
1030
1031
1032/**
1033 * Check the user's system for sanity. Checks performed:
1034 * - make sure user has enough RAM (32mb required, 64mb recommended)
1035 * - make sure user has enough free space in @c /
1036 * - check kernel for ramdisk support
1037 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1038 * - make sure CD-ROM is unmounted
1039 * - make sure /etc/modules.conf exists
1040 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1041 *
1042 * @return number of problems with the user's setup (0 for success)
1043 */
1044int some_basic_system_sanity_checks()
1045{
1046
1047 /*@ buffers ************ */
1048 char tmp[MAX_STR_LEN];
1049 // char command[MAX_STR_LEN];
1050
1051 /*@ int's *************** */
1052 int retval = 0;
1053 long Lres;
1054
1055
1056 mvaddstr_and_log_it(g_currentY, 0,
1057 "Checking sanity of your Linux distribution");
1058#ifndef __FreeBSD__
1059 if (system("which mkfs.vfat &> /dev/null")
1060 && !system("which mkfs.msdos &> /dev/null")) {
1061 log_it
1062 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1063 run_program_and_log_output
1064 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1065 }
1066 strcpy(tmp,
1067 call_program_and_get_last_line_of_output
1068 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1069 if (atol(tmp) < 35000) {
1070 retval++;
1071 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1072 }
1073 if (atol(tmp) < 66000) {
1074 log_to_screen
1075 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1076 }
1077#endif
1078
1079 if ((Lres = free_space_on_given_partition("/root")) == -1) {
1080 Lres = free_space_on_given_partition("/");
1081 }
1082 log_it("Free space on given partition = %ld MB", Lres);
1083
1084 if (Lres < 50) {
1085 run_program_and_log_output
1086 ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
1087 3);
1088 // fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1089 }
1090
1091 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1092 retval++;
1093 log_to_screen
1094 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1095 fatal_error
1096 ("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. :)");
1097 }
1098#ifndef __FreeBSD__
1099 if (run_program_and_log_output
1100 ("grep ramdisk /proc/devices", FALSE)) {
1101 if (!ask_me_yes_or_no
1102 ("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?"))
1103 {
1104 // retval++;
1105 log_to_screen
1106 ("It looks as if your kernel lacks ramdisk and initrd support.");
1107 log_to_screen
1108 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1109 }
1110 }
1111#endif
1112 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1113 retval += whine_if_not_found("mkisofs");
1114 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1115 retval += whine_if_not_found("cdrecord");
1116 }
1117 retval += whine_if_not_found("bzip2");
1118 retval += whine_if_not_found("awk");
1119 retval += whine_if_not_found("md5sum");
1120 retval += whine_if_not_found("strings");
1121 retval += whine_if_not_found("mindi");
1122 retval += whine_if_not_found("buffer");
1123
1124 // abort if Windows partition but no ms-sys and parted
1125 if (!run_program_and_log_output
1126 ("mount | grep -w vfat | grep -v /dev/fd | grep -v nexdisk", 0)
1127 ||
1128 !run_program_and_log_output
1129 ("mount | grep -w dos | grep -v /dev/fd | grep -v nexdisk", 0)) {
1130 log_to_screen("I think you have a Windows 9x partition.");
1131 retval += whine_if_not_found("parted");
1132#ifndef __IA64__
1133 /* IA64 always has one vfat partition for EFI even without Windows */
1134 // retval +=
1135 if (!find_home_of_exe("ms-sys")) {
1136 log_to_screen("Please install ms-sys just in case.");
1137 }
1138#endif
1139 }
1140
1141 if (!find_home_of_exe("cmp")) {
1142 if (!find_home_of_exe("true")) {
1143 whine_if_not_found("cmp");
1144 } else {
1145 log_to_screen
1146 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1147 if (run_program_and_log_output
1148 ("cp -f `which true` /usr/bin/cmp", 0)) {
1149 fatal_error("Failed to create dummy 'cmp' file.");
1150 }
1151 }
1152 }
1153 run_program_and_log_output
1154 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1155 strcpy(tmp,
1156 call_program_and_get_last_line_of_output
1157 ("mount | grep -E \"cdr(om|w)\""));
1158 if (strcmp("", tmp)) {
1159 if (strstr(tmp, "autofs")) {
1160 log_to_screen
1161 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1162 log_to_screen
1163 ("if a CD actually is inserted. If a CD is inserted, please");
1164 log_to_screen("eject it. Thank you.");
1165 log_it
1166 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1167 } else
1168 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1169 retval++;
1170 fatal_error
1171 ("Your CD-ROM drive is mounted. Please unmount it.");
1172 }
1173 }
1174#ifndef __FreeBSD__
1175 if (!does_file_exist("/etc/modules.conf")) {
1176 if (does_file_exist("/etc/conf.modules")) {
1177 log_it("Linking /etc/modules.conf to /etc/conf.modules");
1178 run_program_and_log_output
1179 ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1180 } else if (does_file_exist("/etc/modprobe.d")) {
1181 log_it
1182 ("Directory /etc/modprobe.d found. mindi will use its contents.");
1183 } else if (does_file_exist("/etc/modprobe.conf")) {
1184 log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1185 run_program_and_log_output
1186 ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1187 } else {
1188 retval++;
1189 log_to_screen
1190 ("Please find out what happened to /etc/modules.conf");
1191 }
1192 }
1193#endif
1194
1195 run_program_and_log_output("cat /etc/fstab", 5);
1196#ifdef __FreeBSD__
1197 run_program_and_log_output("vinum printconfig", 5);
1198#else
1199 run_program_and_log_output("cat /etc/raidtab", 5);
1200#endif
1201
1202 if (run_program_and_log_output("mindi -V", 1)) {
1203 log_to_screen("Could not ascertain mindi's version number.");
1204 log_to_screen
1205 ("You have not installed Mondo and/or Mindi properly.");
1206 log_to_screen("Please uninstall and reinstall them both.");
1207 fatal_error("Please reinstall Mondo and Mindi.");
1208 }
1209 if (run_program_and_log_output
1210 ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1211 log_to_screen
1212 ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1213 log_to_screen
1214 ("Please run that command by hand and examine /var/log/mindi.log");
1215 log_to_screen
1216 ("for more information. Perhaps your /etc/fstab file is insane.");
1217 log_to_screen
1218 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1219 retval++;
1220 }
1221
1222 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1223 && !does_file_exist("/etc/raidtab")) {
1224 log_to_screen
1225 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1226 create_raidtab_from_mdstat("/etc/raidtab", "/proc/mdstat");
1227 }
1228
1229 if (retval) {
1230 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1231 } else {
1232 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1233 }
1234 return (retval);
1235}
1236
1237/**
1238 * Retrieve the line containing @p label from the config file.
1239 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1240 * @param label What to read from the file.
1241 * @param value Where to put it.
1242 * @return 0 for success, 1 for failure.
1243 */
1244int read_cfg_var(char *config_file, char *label, char *value)
1245{
1246 /*@ buffer ****************************************************** */
1247 char command[MAX_STR_LEN * 2];
1248 char tmp[MAX_STR_LEN];
1249
1250 /*@ end vars *************************************************** */
1251
1252 assert_string_is_neither_NULL_nor_zerolength(config_file);
1253 assert_string_is_neither_NULL_nor_zerolength(label);
1254 if (!does_file_exist(config_file)) {
1255 sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1256 config_file);
1257 log_to_screen(tmp);
1258 value[0] = '\0';
1259 return (1);
1260 } else if (strstr(value, "/dev/") && strstr(value, "t0")
1261 && !strcmp(label, "media-dev")) {
1262 log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1263 label, value);
1264 return (0);
1265 } else {
1266 sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1267 label, config_file);
1268 strcpy(value, call_program_and_get_last_line_of_output(command));
1269 if (strlen(value) == 0) {
1270 return (1);
1271 } else {
1272 return (0);
1273 }
1274 }
1275}
1276
1277
1278
1279/**
1280 * Remount @c supermount if it was unmounted earlier.
1281 */
1282void remount_supermounts_if_necessary()
1283{
1284 if (g_remount_cdrom_at_end) {
1285 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1286 }
1287 if (g_remount_floppy_at_end) {
1288 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1289 }
1290}
1291
1292/**
1293 * Unmount @c supermount if it's mounted.
1294 */
1295void unmount_supermounts_if_necessary()
1296{
1297 if (run_program_and_log_output
1298 ("mount | grep cdrom | grep super", FALSE) == 0) {
1299 g_remount_cdrom_at_end = TRUE;
1300 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1301 }
1302 if (run_program_and_log_output
1303 ("mount | grep floppy | grep super", FALSE) == 0) {
1304 g_remount_floppy_at_end = TRUE;
1305 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1306 }
1307}
1308
1309/**
1310 * Whether we had to stop autofs (if so, restart it at end).
1311 */
1312bool g_autofs_stopped = FALSE;
1313
1314/**
1315 * Path to the autofs initscript ("" if none exists).
1316 */
1317char g_autofs_exe[MAX_STR_LEN];
1318
1319/**
1320 * Autofs initscript in Xandros Linux distribution.
1321 */
1322#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1323
1324/**
1325 * Autofs initscript in most Linux distributions.
1326 */
1327#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1328
1329/**
1330 * If autofs is mounted, stop it (restart at end).
1331 */
1332void stop_autofs_if_necessary()
1333{
1334 char tmp[MAX_STR_LEN];
1335
1336 g_autofs_exe[0] = '\0';
1337 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1338 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1339 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1340 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1341 }
1342
1343 if (!g_autofs_exe[0]) {
1344 log_msg(3, "No autofs detected.");
1345 } else {
1346 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1347// FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1348 sprintf(tmp, "%s stop", g_autofs_exe);
1349 if (run_program_and_log_output(tmp, 2)) {
1350 log_it("Failed to stop autofs - I assume it wasn't running");
1351 } else {
1352 g_autofs_stopped = TRUE;
1353 log_it("Stopped autofs OK");
1354 }
1355 }
1356}
1357
1358/**
1359 * If autofs was stopped earlier, restart it.
1360 */
1361void restart_autofs_if_necessary()
1362{
1363 char tmp[MAX_STR_LEN];
1364
1365 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1366 log_msg(3, "No autofs detected.");
1367 return;
1368 }
1369 sprintf(tmp, "%s start", g_autofs_exe);
1370 if (run_program_and_log_output(tmp, 2)) {
1371 log_it("Failed to start autofs");
1372 } else {
1373 g_autofs_stopped = FALSE;
1374 log_it("Started autofs OK");
1375 }
1376}
1377
1378
1379/**
1380 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1381 */
1382void mount_boot_if_necessary()
1383{
1384 char tmp[MAX_STR_LEN];
1385 char command[MAX_STR_LEN];
1386
1387 log_msg(1, "Started sub");
1388 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1389 g_boot_mountpt[0] = '\0';
1390 log_msg(4, "Done. Great. Seeting command to something");
1391 strcpy(command,
1392 "grep -v \":\" /etc/fstab | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1393 log_msg(4, "Cool. Command = '%s'", command);
1394 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1395 log_msg(4, "tmp = '%s'", tmp);
1396 if (tmp[0]) {
1397 log_it("/boot is at %s according to /etc/fstab", tmp);
1398 if (strstr(tmp, "LABEL=")) {
1399 if (!run_program_and_log_output("mount /boot", 5)) {
1400 strcpy(g_boot_mountpt, "/boot");
1401 log_msg(1, "Mounted /boot");
1402 } else {
1403 log_it("...ignored cos it's a label :-)");
1404 }
1405 } else {
1406 sprintf(command, "mount | grep -w \"%s\"", tmp);
1407 log_msg(3, "command = %s", command);
1408 if (run_program_and_log_output(command, 5)) {
1409 strcpy(g_boot_mountpt, tmp);
1410 sprintf(tmp,
1411 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1412 g_boot_mountpt);
1413 log_it(tmp);
1414 sprintf(tmp, "mount %s", g_boot_mountpt);
1415 if (run_program_and_log_output(tmp, 5)) {
1416 g_boot_mountpt[0] = '\0';
1417 log_msg(1, "Plan B");
1418 if (!run_program_and_log_output("mount /boot", 5)) {
1419 strcpy(g_boot_mountpt, "/boot");
1420 log_msg(1, "Plan B worked");
1421 } else {
1422 log_msg(1,
1423 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1424 }
1425 }
1426 }
1427 }
1428 }
1429 log_msg(1, "Ended sub");
1430}
1431
1432
1433/**
1434 * If we mounted /boot earlier, unmount it.
1435 */
1436void unmount_boot_if_necessary()
1437{
1438 char tmp[MAX_STR_LEN];
1439
1440 log_msg(3, "starting");
1441 if (g_boot_mountpt[0]) {
1442 sprintf(tmp, "umount %s", g_boot_mountpt);
1443 if (run_program_and_log_output(tmp, 5)) {
1444 log_it("WARNING - unable to unmount /boot");
1445 }
1446 }
1447 log_msg(3, "leaving");
1448}
1449
1450
1451
1452/**
1453 * Write a line to a configuration file. Writes a line of the form,
1454 * @c label @c value.
1455 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1456 * @param label What to call this bit of data you're writing.
1457 * @param value The bit of data you're writing.
1458 * @return 0 for success, 1 for failure.
1459 */
1460int write_cfg_var(char *config_file, char *label, char *value)
1461{
1462 /*@ buffers ***************************************************** */
1463 char command[MAX_STR_LEN * 2];
1464 char tempfile[MAX_STR_LEN];
1465 char tmp[MAX_STR_LEN];
1466
1467
1468 /*@ end vars *************************************************** */
1469 assert_string_is_neither_NULL_nor_zerolength(config_file);
1470 assert_string_is_neither_NULL_nor_zerolength(label);
1471 assert(value != NULL);
1472 if (!does_file_exist(config_file)) {
1473 sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1474 config_file);
1475 log_to_screen(tmp);
1476 return (1);
1477 }
1478 strcpy(tempfile,
1479 call_program_and_get_last_line_of_output
1480 ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1481 if (does_file_exist(config_file)) {
1482 sprintf(command, "grep -vx '%s .*' %s > %s",
1483 label, config_file, tempfile);
1484 paranoid_system(command);
1485 }
1486 sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1487 paranoid_system(command);
1488 sprintf(command, "mv -f %s %s", tempfile, config_file);
1489 paranoid_system(command);
1490 unlink(tempfile);
1491 return (0);
1492}
1493
1494
1495/**
1496 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1497 * information to the logfile.
1498 */
1499void standard_log_debug_msg(int debug_level, const char *szFile,
1500 const char *szFunction, int nLine,
1501 const char *fmt, ...)
1502{
1503 va_list args;
1504 int i;
1505 static int depth = 0;
1506 char *tmp;
1507 FILE *fout;
1508
1509 if (depth > 5) {
1510 depth--;
1511 return;
1512 }
1513 depth++;
1514
1515 malloc_string(tmp);
1516
1517 if (debug_level <= g_loglevel) {
1518 va_start(args, fmt);
1519 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1520 return;
1521 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1522
1523 // add tabs to distinguish log levels
1524 if (debug_level > 0) {
1525 for (i = 1; i < debug_level; i++)
1526 fprintf(fout, "\t");
1527 if (getpid() == g_main_pid)
1528 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1529 nLine);
1530 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1531 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1532 nLine);
1533 else
1534 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1535 szFunction, nLine);
1536 }
1537 vfprintf(fout, fmt, args);
1538
1539 // do not slow down the progran if standard debug level
1540 // must be enabled: if no flush, the log won't be up-to-date if there
1541 // is a segfault
1542 //if (g_dwDebugLevel != 1)
1543
1544 va_end(args);
1545 fprintf(fout, "\n");
1546 paranoid_fclose(fout);
1547 }
1548 depth--;
1549 paranoid_free(tmp);
1550}
1551
1552/**
1553 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1554 */
1555void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1556 ...) = standard_log_debug_msg;
1557
1558
1559/**
1560 * If @p y, malloc @p x, else free @p x.
1561 * @bug This function seems orphaned. Please remove.
1562 */
1563#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1564
1565/**
1566 * Allocate or free important globals, depending on @p mal.
1567 * @param mal If TRUE, malloc; if FALSE, free.
1568 */
1569void do_libmondo_global_strings_thing(int mal)
1570{
1571 if (mal) {
1572 iamhere("Malloc'ing globals");
1573 malloc_string(g_boot_mountpt);
1574 malloc_string(g_mondo_home);
1575 malloc_string(g_tmpfs_mountpt);
1576 malloc_string(g_erase_tmpdir_and_scratchdir);
1577 malloc_string(g_serial_string);
1578 malloc_string(g_magicdev_command);
1579 } else {
1580 iamhere("Freeing globals");
1581 paranoid_free(g_boot_mountpt);
1582 paranoid_free(g_mondo_home);
1583 paranoid_free(g_tmpfs_mountpt);
1584 paranoid_free(g_erase_tmpdir_and_scratchdir);
1585 paranoid_free(g_serial_string);
1586 paranoid_free(g_magicdev_command);
1587 }
1588
1589 /*
1590 char**list_of_arrays[] = {
1591 &g_boot_mountpt,
1592 &g_mondo_home,
1593 &g_tmpfs_mountpt,
1594 &g_erase_tmpdir_and_scratchdir,
1595 &g_serial_string,
1596 &g_magicdev_command,
1597 NULL};
1598
1599 char**ppcurr;
1600 int i;
1601
1602 for(i=0;list_of_arrays[i];i++)
1603 {
1604 log_msg(5, "Allocating %d", i);
1605 ppcurr = list_of_arrays[i];
1606 if (mal)
1607 { *ppcurr = malloc(MAX_STR_LEN); }
1608 else
1609 {
1610 if (*ppcurr)
1611 {
1612 free(*ppcurr);
1613 }
1614 }
1615 }
1616 log_msg(5, "Returning");
1617 */
1618}
1619
1620/**
1621 * Allocate important globals.
1622 * @see do_libmondo_global_strings_thing
1623 */
1624void malloc_libmondo_global_strings(void)
1625{
1626 do_libmondo_global_strings_thing(1);
1627}
1628
1629/**
1630 * Free important globals.
1631 * @see do_libmondo_global_strings_thing
1632 */
1633void free_libmondo_global_strings(void)
1634{
1635 do_libmondo_global_strings_thing(0);
1636}
1637
1638
1639
1640/**
1641 * Stop @c magicdev if it's running.
1642 * The command used to start it is saved in @p g_magicdev_command.
1643 */
1644void stop_magicdev_if_necessary()
1645{
1646 strcpy(g_magicdev_command,
1647 call_program_and_get_last_line_of_output
1648 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1649 if (g_magicdev_command[0]) {
1650 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1651 paranoid_system("killall magicdev");
1652 }
1653}
1654
1655
1656/**
1657 * Restart magicdev if it was stopped.
1658 */
1659void restart_magicdev_if_necessary()
1660{
1661 char *tmp;
1662
1663 malloc_string(tmp);
1664 if (g_magicdev_command && g_magicdev_command[0]) {
1665 sprintf(tmp, "%s &", g_magicdev_command);
1666 paranoid_system(tmp);
1667 }
1668 paranoid_free(tmp);
1669}
1670
1671/* @} - end of utilityGroup */
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