source: MondoRescue/trunk/mondo/mondo/common/libmondo-tools.c@ 539

Last change on this file since 539 was 539, checked in by bcornec, 18 years ago

merge -r 534:538 $SVN_M/branches/stable
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1/* $Id: libmondo-tools.c 539 2006-05-13 17:38:44Z bcornec $
2misc tools
3*/
4
5/**
6 * @file
7 * Miscellaneous tools that didn't really fit anywhere else.
8 */
9
10#include "my-stuff.h"
11#include "mondostructures.h"
12#include "libmondo-tools.h"
13#include "newt-specific-EXT.h"
14#include "libmondo-files-EXT.h"
15#include "libmondo-fork-EXT.h"
16#include "libmondo-raid-EXT.h"
17#include <sys/socket.h>
18#include <netdb.h>
19#include <netinet/in.h>
20#ifndef S_SPLINT_S
21#include <arpa/inet.h>
22#endif
23
24/*@unused@*/
25//static char cvsid[] = "$Id: libmondo-tools.c 539 2006-05-13 17:38:44Z bcornec $";
26
27extern int g_tape_buffer_size_MB;
28extern char *g_erase_tmpdir_and_scratchdir;
29extern char *g_serial_string;
30extern bool g_text_mode;
31extern int g_currentY;
32extern int g_current_media_number;
33
34/**
35 * @addtogroup globalGroup
36 * @{
37 */
38bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
39 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
40bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
41double g_kernel_version;
42
43/**
44 * The place where /boot is mounted. - Used locally only
45 */
46static char *g_boot_mountpt = NULL;
47
48/**
49 * The location of Mondo's home directory.
50 */
51char *g_mondo_home = NULL;
52
53/**
54 * The serial string (used to differentiate between backups) of the current backup.
55 */
56char *g_serial_string = NULL;
57
58/**
59 * The location where tmpfs is mounted, or "" if it's not mounted.
60 */
61char *g_tmpfs_mountpt = NULL;
62char *g_magicdev_command = NULL;
63
64/**
65 * The default maximum level to log messages at or below.
66 */
67int g_loglevel = DEFAULT_DEBUG_LEVEL;
68
69/* @} - end of globalGroup */
70
71
72extern pid_t g_buffer_pid;
73extern pid_t g_main_pid;
74
75extern t_bkptype g_backup_media_type;
76
77extern bool am_I_in_disaster_recovery_mode(void);
78
79
80/**
81 * @addtogroup utilityGroup
82 * @{
83 */
84/**
85 * Assertion handler. Prints a friendly message to the user,
86 * offering to ignore all, dump core, break to debugger,
87 * exit, or ignore. Intended to be used with an assert() macro.
88 *
89 * @param file The file in which the assertion triggered.
90 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
91 * @param line The line number of the assert() statement.
92 * @param exp The expression that failed (as a string).
93 */
94void _mondo_assert_fail(const char *file,
95 const char *function, int line, const char *exp)
96{
97 static int ignoring_assertions = 0;
98 bool is_valid = TRUE;
99
100 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
101 function);
102 if (ignoring_assertions) {
103 log_it("Well, the user doesn't care...");
104 return;
105 }
106#ifndef _XWIN
107 if (!g_text_mode)
108 newtSuspend();
109#endif
110 printf(_("ASSERTION FAILED: `%s'\n"), exp);
111 printf(_("\tat %s:%d in %s\n\n"), file, line, function);
112 printf(_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
113 do {
114 is_valid = TRUE;
115 switch (toupper(getchar())) {
116 case 'A': // ignore (A)ll
117 ignoring_assertions = 1;
118 break;
119 case 'B': // a(B)ort
120 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
121 raise(SIGABRT);
122 break; /* "can't get here" */
123 case 'D': // (D)ebug, aka asm("int 3")
124#ifdef __IA32__
125 __asm__ __volatile__("int $3"); // break to debugger
126#endif
127 break;
128 case 'E': // (E)xit
129 fatal_error("Failed assertion -- see above for details");
130 break; /* "can't get here" */
131 case 'I': // (I)gnore
132 break;
133 /* These next two work as follows:
134 the `default' catches the user's invalid choice and says so;
135 the '\n' catches the newline on the end and prints the prompt again.
136 */
137 case '\n':
138 printf
139 (_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
140 break;
141 default:
142 is_valid = FALSE;
143 printf(_("Invalid choice.\n"));
144 break;
145 }
146 } while (!is_valid);
147
148 if (ignoring_assertions) {
149 log_it("Ignoring ALL assertions from now on.");
150 } else {
151 log_it("Ignoring assertion: %s", exp);
152 }
153
154 getchar(); // skip \n
155
156#ifndef _XWIN
157 if (!g_text_mode)
158 newtResume();
159#endif
160}
161
162/**
163 * Clean's up users' KDE desktops.
164 * @bug Details about this function are unknown.
165 */
166void clean_up_KDE_desktop_if_necessary(void)
167{
168 char *tmp;
169
170 asprintf(&tmp,
171 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
172file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
173awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
174else { print $0;};}' $file.old > $file ; fi ; done");
175 run_program_and_log_output(tmp, 5);
176 paranoid_free(tmp);
177}
178
179
180/**
181 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
182 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
183 *
184 * @param home_sz String to store the home directory ("" if it could not be found).
185 * @return 0 for success, nonzero for failure.
186 */
187char *find_and_store_mondoarchives_home()
188{
189 char *home_sz = NULL;
190
191 asprintf(&home_sz, MONDO_SHARE);
192 return (home_sz);
193}
194
195
196char *get_architecture()
197{
198#ifdef __IA32__
199 return ("i386");
200#endif
201#ifdef __X86_64__
202 return ("x86-64");
203#endif
204#ifdef __IA64__
205 return ("ia64");
206#endif
207 return ("unknown");
208}
209
210
211
212double get_kernel_version()
213{
214 char *p, *tmp;
215 double d;
216#ifdef __FreeBSD__
217 // JOSH - FIXME :)
218 d = 5.2; // :-)
219#else
220 asprintf(&tmp, call_program_and_get_last_line_of_output("uname -r"));
221 p = strchr(tmp, '.');
222 if (p) {
223 p = strchr(++p, '.');
224 if (p) {
225 while (*p) {
226 *p = *(p + 1);
227 p++;
228 }
229 }
230 }
231// log_msg(1, "tmp = '%s'", tmp);
232 d = atof(tmp);
233#endif
234 log_msg(1, "g_kernel_version = %f", d);
235 return (d);
236}
237
238
239
240
241
242/**
243 * Get the current time.
244 * @return number of seconds since the epoch.
245 */
246long get_time()
247{
248 return (long) time((void *) 0);
249}
250
251
252
253
254
255
256
257/**
258 * Initialize a RAID volume structure, setting fields to zero. The
259 * actual hard drive is unaffected.
260 *
261 * @param raidrec The RAID volume structure to initialize.
262 * @note This function is system dependent.
263 */
264#ifdef __FreeBSD__
265void initialize_raidrec(struct vinum_volume *raidrec)
266{
267 int i, j;
268 raidrec->volname[0] = '\0';
269 raidrec->plexes = 0;
270 for (i = 0; i < 9; ++i) {
271 raidrec->plex[i].raidlevel = -1;
272 raidrec->plex[i].stripesize = 0;
273 raidrec->plex[i].subdisks = 0;
274 for (j = 0; j < 9; ++j) {
275 strcpy(raidrec->plex[i].sd[j].which_device, "");
276 }
277 }
278}
279#else
280void initialize_raidrec(struct raid_device_record *raidrec)
281{
282 assert(raidrec != NULL);
283 raidrec->raid_device[0] = '\0';
284 raidrec->raid_level = 0;
285 raidrec->chunk_size = 4;
286 raidrec->persistent_superblock = 1;
287 raidrec->data_disks.entries = 0;
288 raidrec->spare_disks.entries = 0;
289 raidrec->parity_disks.entries = 0;
290 raidrec->failed_disks.entries = 0;
291 raidrec->additional_vars.entries = 0;
292}
293#endif
294
295
296
297
298/**
299 * Insert modules that Mondo requires.
300 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
301 * @c msdosfs and @c ext2fs for FreeBSD.
302 */
303void insmod_crucial_modules(void)
304{
305#ifdef __FreeBSD__
306 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
307 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
308#else
309 system("modprobe -a dos fat vfat loop &> /dev/null");
310#endif
311}
312
313
314/**
315 * Finish configuring the backup information structure. Call this function
316 * to set the parameters that depend on those that can be given on the command
317 * line.
318 *
319 * @param bkpinfo The backup information structure. Fields modified/used:
320 * - Used: @c bkpinfo->backup_data
321 * - Used: @c bkpinfo->backup_media_type
322 * - Used: @c bkpinfo->cdrw_speed
323 * - Used: @c bkpinfo->compression_level
324 * - Used: @c bkpinfo->include_paths
325 * - Used: @c bkpinfo->prefix
326 * - Used: @c bkpinfo->isodir
327 * - Used: @c bkpinfo->manual_cd_tray
328 * - Used: @c bkpinfo->make_cd_use_lilo
329 * - Used: @c bkpinfo->media_device
330 * - Used: @c bkpinfo->nfs_mount
331 * - Used: @c bkpinfo->nonbootable_backup
332 * - Used: @c bkpinfo->scratchdir
333 * - Used: @c bkpinfo->tmpdir
334 * - Used: @c bkpinfo->use_lzo
335 * - Modified: @c bkpinfo->call_before_iso
336 * - Modified: @c bkpinfo->call_make_iso
337 * - Modified: @c bkpinfo->optimal_set_size
338 * - Modified: @c bkpinfo->zip_exe
339 * - Modified: @c bkpinfo->zip_suffix
340 *
341 * @return number of errors, or 0 for success.
342 * @note Also creates directories that are specified in the @c bkpinfo structure but
343 * do not exist.
344 */
345int post_param_configuration(struct s_bkpinfo *bkpinfo)
346{
347 char *extra_cdrom_params = NULL;
348 char *mondo_mkisofs_sz = NULL;
349 char *command;
350 char *hostname, *ip_address;
351 int retval = 0;
352 long avm = 0;
353 char *colon;
354 char *cdr_exe;
355 char *tmp;
356 char *tmp1;
357 char call_before_iso_user[MAX_STR_LEN] = "\0";
358 int rdsiz_MB;
359 char *iso_path;
360
361 assert(bkpinfo != NULL);
362 bkpinfo->optimal_set_size =
363 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 4 : 8) *
364 1024;
365
366 log_msg(1, "Foo");
367 if (bkpinfo->backup_media_type == tape) {
368 log_msg(1, "Bar");
369 asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
370 log_msg(1, "tmp = '%s'", tmp);
371 if (run_program_and_log_output(tmp, 3)) {
372 fatal_error
373 ("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.");
374 }
375 paranoid_free(tmp);
376 }
377 make_hole_for_dir(bkpinfo->scratchdir);
378 make_hole_for_dir(bkpinfo->tmpdir);
379 if (bkpinfo->backup_media_type == iso)
380 make_hole_for_dir(bkpinfo->isodir);
381
382 run_program_and_log_output("uname -a", 5);
383 run_program_and_log_output("cat /etc/*issue*", 5);
384 asprintf(&g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
385 asprintf(&command, "mkdir -p %s", g_tmpfs_mountpt);
386 paranoid_system(command);
387 paranoid_free(command);
388 rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
389#ifdef __FreeBSD__
390 asprintf(&tmp,
391 call_program_and_get_last_line_of_output
392 ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
393 avm += atol(tmp);
394 paranoid_free(tmp);
395 asprintf(&tmp,
396 call_program_and_get_last_line_of_output
397 ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
398 avm += atol(tmp);
399 paranoid_free(tmp);
400 asprintf(&command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
401 g_tmpfs_mountpt);
402#else
403 asprintf(&tmp,
404 call_program_and_get_last_line_of_output
405 ("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1"));
406 avm += atol(tmp);
407 paranoid_free(tmp);
408 asprintf(&command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
409 g_tmpfs_mountpt, rdsiz_MB, 'm');
410 run_program_and_log_output("cat /proc/cpuinfo", 5);
411 /* BERLIOS: rpm is not necessarily there ! */
412 run_program_and_log_output
413 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
414 5);
415#endif
416 if (avm / 1024 > rdsiz_MB * 3) {
417 if (run_program_and_log_output(command, 5)) {
418 g_tmpfs_mountpt[0] = '\0';
419 log_it("Failed to mount tmpfs");
420 } else {
421 log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
422 }
423 } else {
424 g_tmpfs_mountpt[0] = '\0';
425 log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
426 }
427 paranoid_free(command);
428
429 if (bkpinfo->use_lzo) {
430 strcpy(bkpinfo->zip_exe, "lzop");
431 strcpy(bkpinfo->zip_suffix, "lzo");
432 } else if (bkpinfo->compression_level != 0) {
433 strcpy(bkpinfo->zip_exe, "bzip2");
434 strcpy(bkpinfo->zip_suffix, "bz2");
435 } else {
436 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
437 }
438
439// DVD
440
441 if (bkpinfo->backup_media_type == dvd) {
442 if (!(find_home_of_exe("growisofs"))) {
443 fatal_error("Please install growisofs.");
444 }
445 if (bkpinfo->nonbootable_backup) {
446 asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
447 } else if
448#ifdef __FreeBSD__
449 (TRUE)
450#else
451 (bkpinfo->make_cd_use_lilo)
452#endif
453#ifdef __IA64__
454 {
455 asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
456 }
457#else
458 {
459 asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
460 }
461#endif
462 else
463 {
464 asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
465 }
466 if (bkpinfo->manual_cd_tray) {
467 fatal_error("Manual CD tray + DVD not supported yet.");
468 // -m isn't supported by growisofs, BTW...
469 } else {
470 sprintf(bkpinfo->call_make_iso,
471 "%s %s -Z %s . 2>> _ERR_",
472 mondo_mkisofs_sz, "", bkpinfo->media_device);
473 }
474 paranoid_free(mondo_mkisofs_sz);
475
476 if (getenv("SUDO_COMMAND")) {
477 fatal_error
478 ("Can't write DVDs as sudo because growisofs doesn't support this - please see the growisofs manpage for details.");
479 }
480 log_msg(2, "call_make_iso (DVD res) is ... %s",
481 bkpinfo->call_make_iso);
482 } // end of DVD code
483
484// CD-R or CD-RW
485 if (bkpinfo->backup_media_type == cdrw
486 || bkpinfo->backup_media_type == cdr) {
487 if (!bkpinfo->manual_cd_tray) {
488 asprintf(&extra_cdrom_params, "-waiti ");
489 }
490 if (bkpinfo->backup_media_type == cdrw) {
491 if (extra_cdrom_params != NULL) {
492 asprintf(&tmp, extra_cdrom_params);
493 paranoid_free(extra_cdrom_params);
494 asprintf(&extra_cdrom_params, "%s blank=fast ", tmp);
495 } else {
496 asprintf(&extra_cdrom_params, "blank=fast ");
497 }
498 }
499 if (find_home_of_exe("cdrecord")) {
500 asprintf(&cdr_exe, "cdrecord");
501 } else if (find_home_of_exe("dvdrecord")) {
502 asprintf(&cdr_exe, "dvdrecord");
503 } else {
504 fatal_error("Please install either cdrecord or dvdrecord.");
505 }
506 if (bkpinfo->nonbootable_backup) {
507 asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
508 } else if
509#ifdef __FreeBSD__
510 (TRUE)
511#else
512 (bkpinfo->make_cd_use_lilo)
513#endif
514#ifdef __IA64__
515 {
516 asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
517 }
518#else
519 {
520 asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
521 }
522#endif
523 else
524 {
525 asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
526 }
527 if (bkpinfo->manual_cd_tray) {
528 if (bkpinfo->call_before_iso[0] == '\0') {
529 sprintf(bkpinfo->call_before_iso,
530 "%s -o %s/temporary.iso . 2>> _ERR_",
531 mondo_mkisofs_sz, bkpinfo->tmpdir);
532 } else {
533 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
534 sprintf (bkpinfo->call_before_iso,
535 "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
536 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
537 }
538 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
539 sprintf(bkpinfo->call_make_iso,
540 "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
541 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
542 extra_cdrom_params, bkpinfo->media_device,
543 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
544 } else {
545 sprintf(bkpinfo->call_make_iso,
546 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
547 mondo_mkisofs_sz, cdr_exe,
548 (bkpinfo->please_dont_eject) ? " " : "-eject",
549 extra_cdrom_params, bkpinfo->media_device,
550 bkpinfo->cdrw_speed);
551 }
552 paranoid_free(mondo_mkisofs_sz);
553 paranoid_free(cdr_exe);
554 paranoid_free(extra_cdrom_params);
555 } // end of CD code
556
557 if (bkpinfo->backup_media_type == iso) {
558
559/* Patch by Conor Daly <conor.daly@met.ie>
560 * 23-june-2004
561 * Break up isodir into iso_mnt and iso_path
562 * These will be used along with iso-dev at restore time
563 * to locate the ISOs where ever they're mounted
564 */
565
566 log_it("isodir = %s", bkpinfo->isodir);
567 asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1",
568 bkpinfo->isodir);
569 log_it("command = %s", command);
570 asprintf(&tmp, call_program_and_get_last_line_of_output(command));
571 paranoid_free(command);
572 log_it("res of it = %s", tmp);
573 asprintf(&tmp1, "%s/ISO-DEV", bkpinfo->tmpdir);
574 write_one_liner_data_file(tmp1, tmp);
575 paranoid_free(tmp1);
576
577 asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
578 tmp);
579 paranoid_free(tmp);
580 log_it("command = %s", command);
581 asprintf(&tmp, call_program_and_get_last_line_of_output(command));
582 paranoid_free(command);
583 log_it("res of it = %s", tmp);
584
585 asprintf(&tmp1, "%s/ISO-MNT", bkpinfo->tmpdir);
586 write_one_liner_data_file(tmp1, tmp);
587 paranoid_free(tmp1);
588
589 log_it("isomnt: %s, %d", tmp, strlen(tmp));
590 if (strlen(bkpinfo->isodir) < strlen(tmp)) {
591 asprintf(&iso_path, " ");
592 } else {
593 asprintf(&iso_path, "%s", bkpinfo->isodir + strlen(tmp));
594 }
595 paranoid_free(tmp);
596
597 asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
598 write_one_liner_data_file(tmp, iso_path);
599 paranoid_free(tmp);
600 log_it("isodir: %s", iso_path);
601 paranoid_free(iso_path);
602 asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
603 write_one_liner_data_file(tmp, bkpinfo->prefix);
604 log_it("iso-prefix: %s", bkpinfo->prefix);
605 paranoid_free(tmp);
606/* End patch */
607 } // end of iso code
608
609 if (bkpinfo->backup_media_type == nfs) {
610 asprintf(&hostname, bkpinfo->nfs_mount);
611 colon = strchr(hostname, ':');
612 if (!colon) {
613 log_it("nfs mount doesn't have a colon in it");
614 retval++;
615 } else {
616 struct hostent *hent;
617
618 *colon = '\0';
619 hent = gethostbyname(hostname);
620 if (!hent) {
621 log_it("Can't resolve NFS mount (%s): %s", hostname,
622 hstrerror(h_errno));
623 retval++;
624 } else {
625 asprintf(&ip_address, "%s%s", inet_ntoa((struct in_addr)
626 *((struct in_addr
627 *) hent->
628 h_addr)),
629 strchr(bkpinfo->nfs_mount, ':'));
630 strcpy(bkpinfo->nfs_mount, ip_address);
631 paranoid_free(ip_address);
632 }
633 }
634 store_nfs_config(bkpinfo);
635 paranoid_free(hostname);
636 }
637
638 log_it("Finished processing incoming params");
639 if (retval) {
640 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
641 }
642 asprintf(&tmp, "%s", MONDO_TMPISOS);
643 if (does_file_exist(tmp)) {
644 unlink(tmp);
645 }
646 paranoid_free(tmp);
647
648 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
649 log_it("tmpdir or scratchdir are blank/missing");
650 retval++;
651 }
652 if (bkpinfo->include_paths[0] == '\0') {
653 // fatal_error ("Why no backup path?");
654 strcpy(bkpinfo->include_paths, "/");
655 }
656 chmod(bkpinfo->scratchdir, 0700);
657 chmod(bkpinfo->tmpdir, 0700);
658 g_backup_media_type = bkpinfo->backup_media_type;
659 return (retval);
660}
661
662
663
664/**
665 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
666 * Seeds the random-number generator, loads important modules, checks the sanity
667 * of the user's Linux distribution, and deletes logfile.
668 * @param bkpinfo The backup information structure. Will be initialized.
669 * @return number of errors (0 for success)
670 */
671int pre_param_configuration(struct s_bkpinfo *bkpinfo)
672{
673 int res = 0;
674
675 make_hole_for_dir(MNT_CDROM);
676 assert(bkpinfo != NULL);
677 srandom((unsigned long) (time(NULL)));
678 insmod_crucial_modules();
679 reset_bkpinfo(bkpinfo); // also sets defaults ('/'=backup path, 3=compression level)
680 if (bkpinfo->disaster_recovery) {
681 if (!does_nonMS_partition_exist()) {
682 fatal_error
683 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
684 }
685 }
686
687 unlink(MONDO_TRACEFILE);
688 run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
689 if ((g_mondo_home = find_and_store_mondoarchives_home()) == NULL) {
690 fprintf(stderr,
691 "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");
692 res++;
693 return (res);
694 }
695 res += some_basic_system_sanity_checks();
696 if (res) {
697 log_it("Your distribution did not pass Mondo's sanity test.");
698 }
699 g_current_media_number = 1;
700 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
701 return (res);
702}
703
704
705
706
707/**
708 * Reset all fields of the backup information structure to a sensible default.
709 * @param bkpinfo The @c bkpinfo to reset.
710 */
711void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
712{
713 int i;
714
715 log_msg(1, "Hi");
716 assert(bkpinfo != NULL);
717 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
718 bkpinfo->manual_cd_tray = FALSE;
719 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
720 paranoid_free(bkpinfo->media_device);
721 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
722 bkpinfo->media_size[i] = -1;
723 }
724 bkpinfo->boot_loader = '\0';
725 bkpinfo->boot_device[0] = '\0';
726 bkpinfo->zip_exe[0] = '\0';
727 bkpinfo->zip_suffix[0] = '\0';
728 bkpinfo->restore_path[0] = '\0';
729 bkpinfo->use_lzo = FALSE;
730 bkpinfo->do_not_compress_these[0] = '\0';
731 bkpinfo->verify_data = FALSE;
732 bkpinfo->backup_data = FALSE;
733 bkpinfo->restore_data = FALSE;
734 bkpinfo->disaster_recovery =
735 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
736 if (bkpinfo->disaster_recovery) {
737 strcpy(bkpinfo->isodir, "/");
738 } else {
739 strcpy(bkpinfo->isodir, "/var/cache/mondo/iso");
740 }
741 strcpy(bkpinfo->prefix, STD_PREFIX);
742
743 bkpinfo->scratchdir[0] = '\0';
744 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
745 sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768)); // for mondorestore
746 bkpinfo->optimal_set_size = 0;
747 bkpinfo->backup_media_type = none;
748 strcpy(bkpinfo->include_paths, "/");
749 bkpinfo->exclude_paths[0] = '\0';
750 bkpinfo->call_before_iso[0] = '\0';
751 bkpinfo->call_make_iso[0] = '\0';
752 bkpinfo->call_burn_iso[0] = '\0';
753 bkpinfo->call_after_iso[0] = '\0';
754 bkpinfo->image_devs[0] = '\0';
755 bkpinfo->postnuke_tarball[0] = '\0';
756 bkpinfo->kernel_path[0] = '\0';
757 bkpinfo->nfs_mount[0] = '\0';
758 bkpinfo->nfs_remote_dir[0] = '\0';
759 bkpinfo->wipe_media_first = FALSE;
760 bkpinfo->differential = FALSE;
761 bkpinfo->cdrw_speed = 0;
762// patch by Herman Kuster
763 bkpinfo->differential = 0;
764// patch end
765 bkpinfo->compression_level = 3;
766}
767
768
769
770
771/**
772 * Get the remaining free space (in MB) on @p partition.
773 * @param partition The partition to check free space on (either a device or a mountpoint).
774 * @return The free space on @p partition, in MB.
775 */
776long free_space_on_given_partition(char *partition)
777{
778 char *command, *out_sz;
779 long res;
780
781 assert_string_is_neither_NULL_nor_zerolength(partition);
782
783 asprintf(&command, "df -m -P %s &> /dev/null", partition);
784 if (system(command)) {
785 return (-1);
786 } // partition does not exist
787 paranoid_free(command);
788
789 asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
790 partition);
791 asprintf(&out_sz, call_program_and_get_last_line_of_output(command));
792 paranoid_free(command);
793 if (strlen(out_sz) == 0) {
794 return (-1);
795 } // error within df, probably
796 res = atol(out_sz);
797 paranoid_free(out_sz);
798 return (res);
799}
800
801
802
803/**
804 * Check the user's system for sanity. Checks performed:
805 * - make sure user has enough RAM (32mb required, 64mb recommended)
806 * - make sure user has enough free space in @c /
807 * - check kernel for ramdisk support
808 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
809 * - make sure CD-ROM is unmounted
810 * - make sure /etc/modules.conf exists
811 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
812 *
813 * @return number of problems with the user's setup (0 for success)
814 */
815int some_basic_system_sanity_checks()
816{
817
818 /*@ buffers ************ */
819 char *tmp;
820
821 /*@ int's *************** */
822 int retval = 0;
823 long Lres;
824
825
826 mvaddstr_and_log_it(g_currentY, 0,
827 "Checking sanity of your Linux distribution");
828#ifndef __FreeBSD__
829 if (system("which mkfs.vfat &> /dev/null")
830 && !system("which mkfs.msdos &> /dev/null")) {
831 log_it
832 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
833 run_program_and_log_output
834 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
835 }
836 asprintf(&tmp,
837 call_program_and_get_last_line_of_output
838 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
839 if (atol(tmp) < 35000) {
840 retval++;
841 log_to_screen(_("You must have at least 32MB of RAM to use Mondo."));
842 }
843 if (atol(tmp) < 66000) {
844 log_to_screen
845 (_("WARNING! You have very little RAM. Please upgrade to 64MB or more."));
846 }
847 paranoid_free(tmp);
848#endif
849
850 if ((Lres = free_space_on_given_partition("/var/cache/mondo")) == -1) /* {
851 Lres = free_space_on_given_partition("/");
852 }
853 */
854 log_it("Free space on given partition = %ld MB", Lres);
855
856 if (Lres < 50) {
857 fatal_error("Your /var/cache/mondo partition has <50MB free. Please adjust your partition table to something saner.");
858 }
859
860 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
861 retval++;
862 log_to_screen
863 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
864 fatal_error
865 ("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. :)");
866 }
867#ifndef __FreeBSD__
868 if (run_program_and_log_output
869 ("grep ramdisk /proc/devices", FALSE)) {
870 if (!ask_me_yes_or_no
871 (_("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?")))
872 {
873 // retval++;
874 log_to_screen
875 (_("It looks as if your kernel lacks ramdisk and initrd support."));
876 log_to_screen
877 (_("I'll allow you to proceed but FYI, if I'm right, your kernel is broken."));
878 }
879 }
880#endif
881 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
882 retval += whine_if_not_found("mkisofs");
883 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
884 retval += whine_if_not_found("cdrecord");
885 }
886 retval += whine_if_not_found("bzip2");
887 retval += whine_if_not_found("awk");
888 retval += whine_if_not_found("md5sum");
889 retval += whine_if_not_found("strings");
890 retval += whine_if_not_found("mindi");
891 retval += whine_if_not_found("buffer");
892
893 // abort if Windows partition but no ms-sys and parted
894 if (!run_program_and_log_output
895 ("mount | grep -w vfat | grep -v /dev/fd | grep -v nexdisk", 0)
896 ||
897 !run_program_and_log_output
898 ("mount | grep -w dos | grep -v /dev/fd | grep -v nexdisk", 0)) {
899 log_to_screen(_("I think you have a Windows 9x partition."));
900 retval += whine_if_not_found("parted");
901#ifndef __IA64__
902 /* IA64 always has one vfat partition for EFI even without Windows */
903 // retval +=
904 if (!find_home_of_exe("ms-sys")) {
905 log_to_screen(_("Please install ms-sys just in case."));
906 }
907#endif
908 }
909
910 if (!find_home_of_exe("cmp")) {
911 if (!find_home_of_exe("true")) {
912 whine_if_not_found("cmp");
913 } else {
914 log_to_screen
915 (_("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you."));
916 if (run_program_and_log_output
917 ("cp -f `which true` /usr/bin/cmp", 0)) {
918 fatal_error("Failed to create dummy 'cmp' file.");
919 }
920 }
921 }
922 run_program_and_log_output
923 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
924 asprintf(&tmp,
925 call_program_and_get_last_line_of_output
926 ("mount | grep -E \"cdr(om|w)\""));
927 if (strcmp("", tmp)) {
928 if (strstr(tmp, "autofs")) {
929 log_to_screen
930 (_("Your CD-ROM is mounted via autofs. I therefore cannot tell"));
931 log_to_screen
932 (_("if a CD actually is inserted. If a CD is inserted, please"));
933 log_to_screen(_("eject it. Thank you."));
934 log_it
935 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
936 } else
937 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
938 retval++;
939 fatal_error
940 ("Your CD-ROM drive is mounted. Please unmount it.");
941 }
942 }
943 paranoid_free(tmp);
944#ifndef __FreeBSD__
945 if (!does_file_exist("/etc/modules.conf")) {
946 if (does_file_exist("/etc/conf.modules")) {
947 log_it("Linking /etc/modules.conf to /etc/conf.modules");
948 run_program_and_log_output
949 ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
950 } else if (does_file_exist("/etc/modprobe.d")) {
951 log_it
952 ("Directory /etc/modprobe.d found. mindi will use its contents.");
953 } else if (does_file_exist("/etc/modprobe.conf")) {
954 log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
955 run_program_and_log_output
956 ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
957 } else {
958 retval++;
959 log_to_screen
960 (_("Please find out what happened to /etc/modules.conf"));
961 }
962 }
963#endif
964
965 run_program_and_log_output("cat /etc/fstab", 5);
966#ifdef __FreeBSD__
967 run_program_and_log_output("vinum printconfig", 5);
968#else
969 run_program_and_log_output("cat /etc/raidtab", 5);
970#endif
971
972 if (run_program_and_log_output("mindi -V", 1)) {
973 log_to_screen(_("Could not ascertain mindi's version number."));
974 log_to_screen
975 (_("You have not installed Mondo and/or Mindi properly."));
976 log_to_screen(_("Please uninstall and reinstall them both."));
977 fatal_error("Please reinstall Mondo and Mindi.");
978 }
979 if (run_program_and_log_output
980 ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
981 log_to_screen
982 (_("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason."));
983 log_to_screen
984 (_("Please run that command by hand and examine /var/log/mindi.log"));
985 log_to_screen
986 (_("for more information. Perhaps your /etc/fstab file is insane."));
987 log_to_screen
988 (_("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see."));
989 retval++;
990 }
991
992 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
993 && !does_file_exist("/etc/raidtab")) {
994 log_to_screen
995 (_("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat"));
996 create_raidtab_from_mdstat("/etc/raidtab", "/proc/mdstat");
997 }
998
999 if (retval) {
1000 mvaddstr_and_log_it(g_currentY++, 74, _("Failed."));
1001 } else {
1002 mvaddstr_and_log_it(g_currentY++, 74, _("Done."));
1003 }
1004 return (retval);
1005}
1006
1007/**
1008 * Retrieve the line containing @p label from the config file.
1009 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1010 * @param label What to read from the file.
1011 * @param value Where to put it.
1012 * @return 0 for success, 1 for failure.
1013 */
1014int read_cfg_var(char *config_file, char *label, char *value)
1015{
1016 /*@ buffer ****************************************************** */
1017 char *command;
1018 char *tmp;
1019
1020 /*@ end vars *************************************************** */
1021
1022 assert_string_is_neither_NULL_nor_zerolength(config_file);
1023 assert_string_is_neither_NULL_nor_zerolength(label);
1024 if (!does_file_exist(config_file)) {
1025 asprintf(&tmp, "(read_cfg_var) Cannot find %s config file",
1026 config_file);
1027 log_to_screen(tmp);
1028 paranoid_free(tmp);
1029 value[0] = '\0';
1030 return (1);
1031 } else if (strstr(value, "/dev/") && strstr(value, "t0")
1032 && !strcmp(label, "media-dev")) {
1033 log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1034 label, value);
1035 return (0);
1036 } else {
1037 asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1038 label, config_file);
1039 strcpy(value, call_program_and_get_last_line_of_output(command));
1040 paranoid_free(command);
1041 if (strlen(value) == 0) {
1042 return (1);
1043 } else {
1044 return (0);
1045 }
1046 }
1047}
1048
1049
1050
1051/**
1052 * Remount @c supermount if it was unmounted earlier.
1053 */
1054void remount_supermounts_if_necessary()
1055{
1056 if (g_remount_cdrom_at_end) {
1057 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1058 }
1059 if (g_remount_floppy_at_end) {
1060 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1061 }
1062}
1063
1064/**
1065 * Unmount @c supermount if it's mounted.
1066 */
1067void unmount_supermounts_if_necessary()
1068{
1069 if (run_program_and_log_output
1070 ("mount | grep cdrom | grep super", FALSE) == 0) {
1071 g_remount_cdrom_at_end = TRUE;
1072 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1073 }
1074 if (run_program_and_log_output
1075 ("mount | grep floppy | grep super", FALSE) == 0) {
1076 g_remount_floppy_at_end = TRUE;
1077 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1078 }
1079}
1080
1081/**
1082 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1083 */
1084void mount_boot_if_necessary()
1085{
1086 char *tmp;
1087 char *tmp1;
1088 char *command;
1089
1090 log_msg(1, "Started sub");
1091 log_msg(4, "About to set g_boot_mountpt to \"\"");
1092 asprintf(&g_boot_mountpt, "");
1093 log_msg(4, "Done. Great. Seeting command to something");
1094 asprintf(&command,
1095 "grep -v \":\" /etc/fstab | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1096 log_msg(4, "Cool. Command = '%s'", command);
1097 asprintf(&tmp, call_program_and_get_last_line_of_output(command));
1098 paranoid_free(command);
1099
1100 log_msg(4, "tmp = '%s'", tmp);
1101 if (tmp[0]) {
1102 log_it("/boot is at %s according to /etc/fstab", tmp);
1103 if (strstr(tmp, "LABEL=")) {
1104 if (!run_program_and_log_output("mount /boot", 5)) {
1105 paranoid_free(g_boot_mountpt);
1106 asprintf(&g_boot_mountpt, "/boot");
1107 log_msg(1, "Mounted /boot");
1108 } else {
1109 log_it("...ignored cos it's a label :-)");
1110 }
1111 } else {
1112 asprintf(&command, "mount | grep -w \"%s\"", tmp);
1113 log_msg(3, "command = %s", command);
1114 if (run_program_and_log_output(command, 5)) {
1115 paranoid_free(g_boot_mountpt);
1116 asprintf(&g_boot_mountpt, tmp);
1117 asprintf(&tmp1,
1118 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1119 g_boot_mountpt);
1120 log_it(tmp1);
1121 paranoid_free(tmp1);
1122
1123 asprintf(&tmp1, "mount %s", g_boot_mountpt);
1124 if (run_program_and_log_output(tmp1, 5)) {
1125 paranoid_free(g_boot_mountpt);
1126 asprintf(&g_boot_mountpt, " ");
1127 log_msg(1, "Plan B");
1128 if (!run_program_and_log_output("mount /boot", 5)) {
1129 paranoid_free(g_boot_mountpt);
1130 asprintf(&g_boot_mountpt, "/boot");
1131 log_msg(1, "Plan B worked");
1132 } else {
1133 log_msg(1,
1134 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1135 }
1136 }
1137 paranoid_free(tmp1);
1138 }
1139 paranoid_free(command);
1140 }
1141 }
1142 paranoid_free(tmp);
1143 log_msg(1, "Ended sub");
1144}
1145
1146
1147/**
1148 * If we mounted /boot earlier, unmount it.
1149 */
1150void unmount_boot_if_necessary()
1151{
1152 char *tmp;
1153
1154 log_msg(3, "starting");
1155 if (g_boot_mountpt[0]) {
1156 asprintf(&tmp, "umount %s", g_boot_mountpt);
1157 if (run_program_and_log_output(tmp, 5)) {
1158 log_it("WARNING - unable to unmount /boot");
1159 }
1160 paranoid_free(tmp);
1161 }
1162 log_msg(3, "leaving");
1163}
1164
1165
1166
1167/**
1168 * Write a line to a configuration file. Writes a line of the form,
1169 * @c label @c value.
1170 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1171 * @param label What to call this bit of data you're writing.
1172 * @param value The bit of data you're writing.
1173 * @return 0 for success, 1 for failure.
1174 */
1175int write_cfg_var(char *config_file, char *label, char *value)
1176{
1177 /*@ buffers ***************************************************** */
1178 char *command;
1179 char *tempfile;
1180 char *tmp;
1181
1182
1183 /*@ end vars *************************************************** */
1184 assert_string_is_neither_NULL_nor_zerolength(config_file);
1185 assert_string_is_neither_NULL_nor_zerolength(label);
1186 assert(value != NULL);
1187
1188 if (!does_file_exist(config_file)) {
1189 asprintf(&tmp, "(write_cfg_file) Cannot find %s config file",
1190 config_file);
1191 log_to_screen(tmp);
1192 paranoid_free(tmp);
1193 return (1);
1194 }
1195 asprintf(&tempfile,
1196 call_program_and_get_last_line_of_output
1197 ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1198 if (does_file_exist(config_file)) {
1199 asprintf(&command, "grep -vx '%s .*' %s > %s",
1200 label, config_file, tempfile);
1201 paranoid_system(command);
1202 paranoid_free(command);
1203 }
1204 asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1205 paranoid_system(command);
1206 paranoid_free(command);
1207
1208 asprintf(&command, "mv -f %s %s", tempfile, config_file);
1209 paranoid_system(command);
1210 paranoid_free(command);
1211 unlink(tempfile);
1212 paranoid_free(tempfile);
1213 return (0);
1214}
1215
1216/**
1217 * Allocate or free important globals, depending on @p mal.
1218 * @param mal If TRUE, malloc; if FALSE, free.
1219 */
1220void do_libmondo_global_strings_thing(int mal)
1221{
1222 if (mal) {
1223 iamhere("Malloc'ing globals");
1224 malloc_string(g_erase_tmpdir_and_scratchdir);
1225 malloc_string(g_serial_string);
1226 malloc_string(g_magicdev_command);
1227 } else {
1228 iamhere("Freeing globals");
1229 paranoid_free(g_boot_mountpt);
1230 paranoid_free(g_mondo_home);
1231 paranoid_free(g_tmpfs_mountpt);
1232 paranoid_free(g_erase_tmpdir_and_scratchdir);
1233 paranoid_free(g_serial_string);
1234 paranoid_free(g_magicdev_command);
1235 }
1236}
1237
1238/**
1239 * Allocate important globals.
1240 * @see do_libmondo_global_strings_thing
1241 */
1242void malloc_libmondo_global_strings(void)
1243{
1244 do_libmondo_global_strings_thing(1);
1245}
1246
1247/**
1248 * Free important globals.
1249 * @see do_libmondo_global_strings_thing
1250 */
1251void free_libmondo_global_strings(void)
1252{
1253 do_libmondo_global_strings_thing(0);
1254}
1255
1256
1257
1258/**
1259 * Stop @c magicdev if it's running.
1260 * The command used to start it is saved in @p g_magicdev_command.
1261 */
1262void stop_magicdev_if_necessary()
1263{
1264 strcpy(g_magicdev_command,
1265 call_program_and_get_last_line_of_output
1266 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1267 if (g_magicdev_command[0]) {
1268 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1269 paranoid_system("killall magicdev");
1270 }
1271}
1272
1273
1274/**
1275 * Restart magicdev if it was stopped.
1276 */
1277void restart_magicdev_if_necessary()
1278{
1279 char *tmp;
1280
1281 if (g_magicdev_command && g_magicdev_command[0]) {
1282 asprintf(&tmp, "%s &", g_magicdev_command);
1283 paranoid_system(tmp);
1284 paranoid_free(tmp);
1285 }
1286}
1287
1288/* @} - end of utilityGroup */
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