source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-tools.c@ 2444

Last change on this file since 2444 was 2444, checked in by Bruno Cornec, 15 years ago
  • priority given to env var for tmpdir
  • fuse FS excluded from tmpdir computation
  • Improves udev timeout handling
  • fuse device is needed at restore time for sshfs
  • Avoids comment analysis in the new code handling deplist.d
  • Avoids error message if some ssh conf files do not exist
  • Improvements on sshfs/ssh management in restore mode
  • Include now all minimal requirements for sshfs
  • Fix udev support in init for Mandriva 2009.1 (udevadm settle is blocking)
  • Improve deplist.d/* files
  • adds libnss for ssh support in boot disk
  • Solve a memory management issue in DSF module (strtok => mr_strtok)
  • DSF now also supports partitions in addition to full disks
  • Adds debug in open_and_list_dir
  • Improve user management for NetFS cases
  • ssh in the restore env needs some dlopened libs (libnss_compat|files)
  • Warning emited in case of duplicate mountpoints or devices in fstab found
  • Use only the AWK veriable everywhere and not the awk command
  • Simplify GetInitrdFilesystemToUse which doesn't need to detect everything, but just know if it's initramfs (new mode) or a compressed FS ext2/3 (older mode) as initrd is anyway re-made by mindi. Should fix #353

(Backport from 2.2.9)
  • Property svn:keywords set to Id
File size: 39.4 KB
Line 
1/*
2 $Id: libmondo-tools.c 2444 2009-09-30 02:44:40Z bruno $
3*/
4
5
6/**
7 * @file
8 * Miscellaneous tools that didn't really fit anywhere else.
9 */
10
11#include "my-stuff.h"
12#include "mr_mem.h"
13#include "mondostructures.h"
14#include "lib-common-externs.h"
15#include "libmondo-tools.h"
16#include "libmondo-gui-EXT.h"
17#include "libmondo-files-EXT.h"
18#include "libmondo-fork-EXT.h"
19#include "libmondo-raid-EXT.h"
20#include "libmondo-devices-EXT.h"
21#include <sys/socket.h>
22#include <netdb.h>
23#include <stdlib.h>
24#include <netinet/in.h>
25#include <arpa/inet.h>
26#include <sys/utsname.h>
27
28/*@unused@*/
29//static char cvsid[] = "$Id: libmondo-tools.c 2444 2009-09-30 02:44:40Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36extern char *g_serial_string;
37
38/* Reference to global bkpinfo */
39extern struct s_bkpinfo *bkpinfo;
40
41/**
42 * @addtogroup globalGroup
43 * @{
44 */
45bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
46 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
47bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
48double g_kernel_version;
49
50/**
51 * The place where /boot is mounted.
52 */
53char *g_boot_mountpt = NULL;
54
55/**
56 * The location of Mondo's home directory.
57 */
58char *g_mondo_home = NULL;
59
60/**
61 * The location where tmpfs is mounted, or "" if it's not mounted.
62char *g_tmpfs_mountpt = NULL;
63 */
64char *g_magicdev_command = NULL;
65
66/**
67 * The default maximum level to log messages at or below.
68 */
69int g_loglevel = DEFAULT_DEBUG_LEVEL;
70
71/* @} - end of globalGroup */
72
73
74extern pid_t g_buffer_pid;
75extern pid_t g_main_pid;
76
77extern t_bkptype g_backup_media_type;
78
79extern bool am_I_in_disaster_recovery_mode(void);
80
81/*-----------------------------------------------------------*/
82
83
84/**
85 * @addtogroup utilityGroup
86 * @{
87 */
88/**
89 * Assertion handler. Prints a friendly message to the user,
90 * offering to ignore all, dump core, break to debugger,
91 * exit, or ignore. Intended to be used with an assert() macro.
92 *
93 * @param file The file in which the assertion triggered.
94 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
95 * @param line The line number of the assert() statement.
96 * @param exp The expression that failed (as a string).
97 */
98void _mondo_assert_fail(const char *file,
99 const char *function, int line, const char *exp)
100{
101 static int ignoring_assertions = 0;
102 bool is_valid = TRUE;
103
104 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
105 function);
106 if (ignoring_assertions) {
107 log_it("Well, the user doesn't care...");
108 return;
109 }
110 if (!g_text_mode)
111 newtSuspend();
112 printf("ASSERTION FAILED: `%s'\n", exp);
113 printf("\tat %s:%d in %s\n\n", file, line, function);
114 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
115 do {
116 is_valid = TRUE;
117 switch (toupper(getchar())) {
118 case 'A': // ignore (A)ll
119 ignoring_assertions = 1;
120 break;
121 case 'B': // a(B)ort
122 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
123 raise(SIGABRT);
124 break; /* "can't get here" */
125 case 'D': // (D)ebug, aka asm("int 3")
126#ifdef __IA32__
127 __asm__ __volatile__("int $3"); // break to debugger
128#endif
129 break;
130 case 'E': // (E)xit
131 fatal_error("Failed assertion -- see above for details");
132 break; /* "can't get here" */
133 case 'I': // (I)gnore
134 break;
135 /* These next two work as follows:
136 the `default' catches the user's invalid choice and says so;
137 the '\n' catches the newline on the end and prints the prompt again.
138 */
139 case '\n':
140 printf
141 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
142 break;
143 default:
144 is_valid = FALSE;
145 printf("Invalid choice.\n");
146 break;
147 }
148 } while (!is_valid);
149
150 if (ignoring_assertions) {
151 log_it("Ignoring ALL assertions from now on.");
152 } else {
153 log_it("Ignoring assertion: %s", exp);
154 }
155
156 getchar(); // skip \n
157
158 if (!g_text_mode)
159 newtResume();
160}
161
162/**
163 * Clean's up users' KDE desktops.
164 * @bug Details about this function are unknown.
165 */
166void clean_up_KDE_desktop_if_necessary(void)
167{
168 char *tmp = NULL;
169
170 mr_asprintf(tmp, "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } else { print $0;};}' $file.old > $file ; fi ; done");
171 run_program_and_log_output(tmp, 5);
172 mr_free(tmp);
173}
174
175
176/**
177 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
178 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
179 *
180 * @param home_sz String to store the home directory ("" if it could not be found).
181 * @return 0 for success, nonzero for failure.
182 */
183int find_and_store_mondoarchives_home(char *home_sz)
184{
185 assert(home_sz != NULL);
186 strcpy(home_sz, MONDO_SHARE);
187 return (0);
188}
189
190
191char *get_architecture(void) {
192#ifdef __IA32__
193# ifdef __X86_64__
194 return ("x86_64");
195# else
196 return ("i386");
197# endif
198#endif
199#ifdef __IA64__
200 return ("ia64");
201#endif
202 return ("unknown");
203}
204
205
206char *get_uname_m(void) {
207
208 struct utsname utsn;
209 char *tmp = NULL;
210
211 uname(&utsn);
212 mr_asprintf(tmp, "%s", utsn.machine);
213 return (tmp);
214}
215
216
217
218double get_kernel_version(void)
219{
220 char *p = NULL;
221 char *tmp = NULL;
222 double d;
223#ifdef __FreeBSD__
224 // JOSH - FIXME :)
225 d = 5.2; // :-)
226#else
227 tmp = call_program_and_get_last_line_of_output("uname -r");
228 p = strchr(tmp, '.');
229 if (p) {
230 p = strchr(++p, '.');
231 if (p) {
232 while (*p) {
233 *p = *(p + 1);
234 p++;
235 }
236 }
237 }
238 d = atof(tmp);
239 mr_free(tmp);
240#endif
241 log_msg(1, "g_kernel_version = %f", d);
242 return (d);
243}
244
245
246/**
247 * Get the current time.
248 * @return number of seconds since the epoch.
249 */
250long get_time()
251{
252 return (long) time((void *) 0);
253}
254
255
256/**
257 * Initialize a RAID volume structure, setting fields to zero. The
258 * actual hard drive is unaffected.
259 *
260 * @param raidrec The RAID volume structure to initialize.
261 * @note This function is system dependent.
262 */
263#ifdef __FreeBSD__
264void initialize_raidrec(struct vinum_volume *raidrec)
265{
266 int i, j;
267 raidrec->volname[0] = '\0';
268 raidrec->plexes = 0;
269 for (i = 0; i < 9; ++i) {
270 raidrec->plex[i].raidlevel = -1;
271 raidrec->plex[i].stripesize = 0;
272 raidrec->plex[i].subdisks = 0;
273 for (j = 0; j < 9; ++j) {
274 strcpy(raidrec->plex[i].sd[j].which_device, "");
275 }
276 }
277}
278#else
279void initialize_raidrec(struct raid_device_record *raidrec)
280{
281 assert(raidrec != NULL);
282 raidrec->raid_device[0] = '\0';
283 raidrec->raid_level = -9;
284 raidrec->persistent_superblock = 1;
285 raidrec->chunk_size = 64;
286 raidrec->parity = -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 msdos, @c vfat, and @c loop 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 msdos vfat loop &> /dev/null");
310#endif
311}
312
313
314/**
315 * Log a trace message to the trace file.
316 * @bug This function seems orphaned. Please remove.
317 */
318void log_trace(char *o)
319{
320 /*@ pointers **************************************************** */
321 FILE *fout;
322
323 /*@ buffers ***************************************************** */
324 char output[MAX_STR_LEN];
325
326 /*@ int ****************************************************** */
327 int i;
328
329 /*@ end vars *************************************************** */
330
331 if (o[0] == '\0') {
332 return;
333 }
334 strcpy(output, o);
335 i = (int) strlen(output);
336 if (i <= 0) {
337 return;
338 }
339 if (output[i - 1] < 32) {
340 output[i - 1] = '\0';
341 }
342 if (g_text_mode) {
343 printf("%s\n", output);
344 }
345
346 fout = fopen(MONDO_TRACEFILE, "a");
347 if (fout) {
348 fprintf(fout, "%s\n", output);
349 paranoid_fclose(fout);
350 } else {
351 log_OS_error("Cannot write to tracefile");
352 }
353}
354
355
356
357
358
359/**
360 * Finish configuring the backup information structure. Call this function
361 * to set the parameters that depend on those that can be given on the command
362 * line.
363 *
364 * @param bkpinfo The backup information structure. Fields modified/used:
365 * - Used: @c bkpinfo->backup_data
366 * - Used: @c bkpinfo->backup_media_type
367 * - Used: @c bkpinfo->cdrw_speed
368 * - Used: @c bkpinfo->compression_level
369 * - Used: @c bkpinfo->include_paths
370 * - Used: @c bkpinfo->prefix
371 * - Used: @c bkpinfo->isodir
372 * - Used: @c bkpinfo->manual_cd_tray
373 * - Used: @c bkpinfo->make_cd_use_lilo
374 * - Used: @c bkpinfo->media_device
375 * - Used: @c bkpinfo->netfs_mount
376 * - Used: @c bkpinfo->nonbootable_backup
377 * - Used: @c bkpinfo->scratchdir
378 * - Used: @c bkpinfo->tmpdir
379 * - Used: @c bkpinfo->use_lzo
380 * - Modified: @c bkpinfo->call_before_iso
381 * - Modified: @c bkpinfo->call_make_iso
382 * - Modified: @c bkpinfo->optimal_set_size
383 * - Modified: @c bkpinfo->zip_exe
384 * - Modified: @c bkpinfo->zip_suffix
385 *
386 * @return number of errors, or 0 for success.
387 * @note Also creates directories that are specified in the @c bkpinfo structure but
388 * do not exist.
389 */
390int post_param_configuration()
391{
392 char *extra_cdrom_params = NULL;
393 char *mondo_mkisofs_sz = NULL;
394 char *command = NULL;
395 char *hostname = NULL;
396 char *ip_address = NULL;
397 int retval = 0;
398 char *colon;
399 char *cdr_exe = NULL;
400 char *tmp = NULL;
401 char *p = NULL;
402 char *call_before_iso_user = NULL;
403 char *iso_dev = NULL;
404 char *iso_mnt = NULL;
405 char *iso_tmp = NULL;
406 char *iso_path = NULL;
407
408 assert(bkpinfo != NULL);
409
410 if (!bkpinfo->tmpdir) {
411 fatal_error("Tmpdir set to NULL !");
412 }
413
414 bkpinfo->optimal_set_size =
415 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
416 1024;
417
418 if (strlen(bkpinfo->tmpdir) < 2) {
419 log_it("tmpdir is blank/missing");
420 retval++;
421 }
422
423 log_msg(1, "Foo");
424 if (bkpinfo->backup_media_type == tape) {
425 log_msg(1, "Bar");
426 if (bkpinfo->media_device == NULL) {
427 return(1);
428 }
429 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
430 log_msg(1, "tmp = '%s'", tmp);
431 if (run_program_and_log_output(tmp, 3)) {
432 mr_free(tmp);
433 fatal_error
434 ("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.");
435 }
436 mr_free(tmp);
437 }
438 if (bkpinfo->scratchdir) {
439 make_hole_for_dir(bkpinfo->scratchdir);
440 chmod(bkpinfo->scratchdir, 0700);
441 } else {
442 fatal_error("Scratchdir set to NULL !");
443 }
444 if (bkpinfo->backup_media_type == iso)
445 make_hole_for_dir(bkpinfo->isodir);
446
447 run_program_and_log_output("uname -a", 5);
448 run_program_and_log_output("cat /etc/*-release", 5);
449 run_program_and_log_output("cat /etc/*issue*", 5);
450#ifdef __FreeBSD__
451#else
452 run_program_and_log_output("cat /proc/cpuinfo", 5);
453 run_program_and_log_output
454 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
455 5);
456#endif
457
458 if (bkpinfo->use_lzo) {
459 mr_asprintf(bkpinfo->zip_exe, "lzop");
460 mr_asprintf(bkpinfo->zip_suffix, "lzo");
461 } else if (bkpinfo->use_gzip) {
462 mr_asprintf(bkpinfo->zip_exe, "gzip");
463 mr_asprintf(bkpinfo->zip_suffix, "gz");
464 } else if (bkpinfo->use_lzma) {
465 mr_asprintf(bkpinfo->zip_exe, "lzma");
466 mr_asprintf(bkpinfo->zip_suffix, "lzma");
467 } else if (bkpinfo->compression_level != 0) {
468 mr_asprintf(bkpinfo->zip_exe, "bzip2");
469 mr_asprintf(bkpinfo->zip_suffix, "bz2");
470 } else {
471 mr_asprintf(bkpinfo->zip_exe, "none");
472 mr_asprintf(bkpinfo->zip_suffix, "");
473 }
474
475// DVD
476
477 if (bkpinfo->backup_media_type == dvd) {
478 tmp = find_home_of_exe("growisofs");
479 if (tmp) {
480 mr_asprintf(cdr_exe, "growisofs");
481 } // unlikely to be used
482 else {
483 mr_free(tmp);
484 fatal_error("Please install growisofs.");
485 }
486 mr_free(tmp);
487
488 if (bkpinfo->nonbootable_backup) {
489 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
490 } else if
491#ifdef __FreeBSD__
492 (TRUE)
493#else
494 (bkpinfo->make_cd_use_lilo)
495#endif
496#ifdef __IA64__
497 {
498 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
499 }
500#else
501 {
502 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
503 }
504#endif
505 else
506 {
507 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
508 }
509 if (bkpinfo->manual_cd_tray) {
510 paranoid_free(mondo_mkisofs_sz);
511 fatal_error("Manual CD tray + DVD not supported yet.");
512 // -m isn't supported by growisofs, BTW...
513 } else {
514 if (bkpinfo->media_device == NULL) {
515 return(1);
516 }
517 mr_free(bkpinfo->call_make_iso);
518 mr_asprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
519 paranoid_free(mondo_mkisofs_sz);
520 }
521 if (getenv ("SUDO_COMMAND")) {
522 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
523 tmp = call_program_and_get_last_line_of_output(command);
524 if (!strcmp(tmp, "1")) {
525 mr_free(command);
526 mr_free(tmp);
527 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
528 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
529 }
530 mr_free(command);
531 mr_free(tmp);
532 }
533 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
534 } // end of DVD code
535
536// CD-R or CD-RW
537 if (bkpinfo->backup_media_type == cdrw
538 || bkpinfo->backup_media_type == cdr) {
539 if (!bkpinfo->manual_cd_tray) {
540 mr_asprintf(extra_cdrom_params, "-waiti ");
541 }
542 if (bkpinfo->backup_media_type == cdrw) {
543 mr_asprintf(extra_cdrom_params, "blank=fast ");
544 }
545 tmp = find_home_of_exe("cdrecord");
546 if (tmp) {
547 mr_asprintf(cdr_exe, "cdrecord");
548 } else {
549 mr_free(tmp);
550 tmp = find_home_of_exe("dvdrecord");
551 if (tmp) {
552 mr_asprintf(cdr_exe, "dvdrecord");
553 } else {
554 mr_free(tmp);
555 fatal_error("Please install either cdrecord or dvdrecord.");
556 }
557 }
558 mr_free(tmp);
559
560 if (bkpinfo->nonbootable_backup) {
561 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
562 } else if
563#ifdef __FreeBSD__
564 (TRUE)
565#else
566 (bkpinfo->make_cd_use_lilo)
567#endif
568#ifdef __IA64__
569 {
570 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
571 }
572#else
573 {
574 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
575 }
576#endif
577 else {
578 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
579 }
580
581 mr_free(bkpinfo->call_make_iso);
582 if (bkpinfo->manual_cd_tray) {
583 if (bkpinfo->call_before_iso == NULL) {
584 mr_asprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
585 } else {
586 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
587 mr_free(bkpinfo->call_before_iso);
588 mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
589 mr_free(call_before_iso_user);
590 }
591 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
592 if (bkpinfo->media_device == NULL) {
593 return(1);
594 }
595 mr_asprintf(bkpinfo->call_make_iso, "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed, bkpinfo->tmpdir);
596 } else {
597 mr_asprintf(bkpinfo->call_make_iso, "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -", mondo_mkisofs_sz, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed);
598 }
599 mr_free(cdr_exe);
600 paranoid_free(mondo_mkisofs_sz);
601 paranoid_free(extra_cdrom_params);
602 } // end of CD code
603
604 if (bkpinfo->backup_media_type == iso) {
605
606/* Patch by Conor Daly <conor.daly@met.ie>
607 * 23-june-2004
608 * Break up isodir into iso_mnt and iso_path
609 * These will be used along with iso-dev at restore time
610 * to locate the ISOs where ever they're mounted
611 */
612
613 log_it("isodir = %s", bkpinfo->isodir);
614 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
615 log_it("command = %s", command);
616 iso_dev = call_program_and_get_last_line_of_output(command);
617 log_it("res of it = %s", iso_dev);
618 mr_free(command);
619
620 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
621 mr_free(iso_dev);
622
623 log_it("command = %s", command);
624 iso_mnt = call_program_and_get_last_line_of_output(command);
625 log_it("res of it = %s", iso_mnt);
626 mr_free(command);
627
628 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
629 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
630 if (strlen(iso_tmp) < strlen(iso_mnt)) {
631 mr_asprintf(iso_path, "%s", "");
632 } else {
633 mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
634 }
635 mr_free(iso_mnt);
636 mr_free(iso_tmp);
637
638 log_it("isodir: %s", iso_path);
639 mr_free(iso_path);
640
641 log_it("iso-prefix: %s", bkpinfo->prefix);
642
643/* End patch */
644 } // end of iso code
645
646 if (bkpinfo->backup_media_type == netfs) {
647 if (bkpinfo->netfs_mount) {
648 mr_asprintf(hostname, "%s", bkpinfo->netfs_mount);
649 } else {
650 log_it("netfs_mount is NULL");
651 retval++;
652 mr_asprintf(hostname, "");
653 }
654 colon = strchr(hostname, ':');
655 if (!colon) {
656 log_it("netfs mount doesn't have a colon in it");
657 retval++;
658 } else {
659 struct hostent *hent;
660
661 *colon = '\0';
662 hent = gethostbyname(hostname);
663 if (!hent) {
664 log_it("Can't resolve Network mount (%s): %s", hostname, hstrerror(h_errno));
665 retval++;
666 } else {
667 mr_asprintf(ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
668 mr_strcat(ip_address, strchr(bkpinfo->netfs_mount, ':'));
669 mr_free(bkpinfo->netfs_mount);
670 bkpinfo->netfs_mount = ip_address;
671 }
672 }
673 mr_free(hostname);
674 store_netfs_config();
675 }
676
677 log_it("Finished processing incoming params");
678 if (retval) {
679 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
680 }
681 if (bkpinfo->include_paths == NULL) {
682 mr_asprintf(p, "/");
683 bkpinfo->include_paths = p;
684 }
685 g_backup_media_type = bkpinfo->backup_media_type;
686 return (retval);
687}
688
689
690
691/**
692 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
693 * Seeds the random-number generator, loads important modules, checks the sanity
694 * of the user's Linux distribution, and deletes logfile.
695 * @param bkpinfo The backup information structure. Will be initialized.
696 * @return number of errors (0 for success)
697 */
698int pre_param_configuration()
699{
700 int res = 0;
701 char *tmp = NULL;
702
703 make_hole_for_dir(MNT_CDROM);
704 assert(bkpinfo != NULL);
705 srandom((unsigned long) (time(NULL)));
706 insmod_crucial_modules();
707 if (bkpinfo->disaster_recovery) {
708 if (!does_nonMS_partition_exist()) {
709 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
710 }
711 }
712
713 unlink(MONDO_TRACEFILE);
714 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
715 run_program_and_log_output(tmp, FALSE);
716 paranoid_free(tmp);
717 if (find_and_store_mondoarchives_home(g_mondo_home)) {
718 fprintf(stderr, "Cannot find Mondo's homedir. I think you have >1 'mondo' directory on your hard disk. Please delete the superfluous 'mondo' directories and try again\n");
719 res++;
720 return (res);
721 }
722 res += some_basic_system_sanity_checks();
723 if (res) {
724 log_it("Your distribution did not pass Mondo's sanity test.");
725 }
726 g_current_media_number = 1;
727 return (res);
728}
729
730void setup_tmpdir(char *path) {
731
732 char *tmp = NULL;
733 char *p = NULL;
734
735 if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
736 /* purging a potential old tmpdir */
737 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
738 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
739 mr_free(bkpinfo->tmpdir);
740 (void)system(tmp);
741 mr_free(tmp);
742 }
743
744 /* Always take in account env first */
745 if (getenv("TMPDIR")) {
746 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
747 } else if (getenv("TMP")) {
748 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
749 } else if (path != NULL) {
750 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
751 } else {
752 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
753 }
754 p = mkdtemp(tmp);
755 if (p == NULL) {
756 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
757 mr_free(tmp);
758 finish(-1);
759 }
760
761 bkpinfo->tmpdir = p;
762 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
763}
764
765/* Free all memory allocated into bkpinfo */
766void mr_free_bkpinfo() {
767
768 log_msg(1, "Freeing bkpinfo");
769 mr_free(bkpinfo->media_device);
770 mr_free(bkpinfo->boot_device);
771 mr_free(bkpinfo->zip_exe);
772 mr_free(bkpinfo->zip_suffix);
773 mr_free(bkpinfo->image_devs);
774 mr_free(bkpinfo->isodir);
775 mr_free(bkpinfo->prefix);
776 mr_free(bkpinfo->scratchdir);
777 mr_free(bkpinfo->tmpdir);
778 mr_free(bkpinfo->include_paths);
779 mr_free(bkpinfo->exclude_paths);
780 mr_free(bkpinfo->exclude_devs);
781 mr_free(bkpinfo->restore_path);
782 mr_free(bkpinfo->call_before_iso);
783 mr_free(bkpinfo->call_make_iso);
784 mr_free(bkpinfo->call_burn_iso);
785 mr_free(bkpinfo->call_after_iso);
786 mr_free(bkpinfo->kernel_path);
787 mr_free(bkpinfo->netfs_mount);
788 mr_free(bkpinfo->netfs_remote_dir);
789 mr_free(bkpinfo->netfs_user);
790 mr_free(bkpinfo->netfs_proto);
791 mr_free(bkpinfo->postnuke_tarball);
792
793 /* Then free the structure */
794 mr_free(bkpinfo);
795}
796
797/**
798 * Reset all fields of the backup information structure to a sensible default.
799 * @param bkpinfo The @c bkpinfo to reset.
800 */
801void init_bkpinfo()
802{
803 int i;
804 log_msg(1, "Initializing bkpinfo");
805 bkpinfo = (struct s_bkpinfo *)mr_malloc(sizeof(struct s_bkpinfo));
806
807 /* We need tmpdir as early as possible for further function calls */
808 bkpinfo->tmpdir = NULL; // Really setup after
809 setup_tmpdir(NULL);
810
811 /* Initialized in same order as in the structure declaration to detect errors more easily */
812 bkpinfo->media_device = NULL;
813 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
814 bkpinfo->media_size[i] = -1;
815 }
816 bkpinfo->boot_loader = '\0';
817 bkpinfo->boot_device = NULL;
818 bkpinfo->zip_exe = NULL;
819 bkpinfo->zip_suffix = NULL;
820 bkpinfo->image_devs = NULL;
821 bkpinfo->compression_level = 3;
822 bkpinfo->use_lzo = FALSE;
823 bkpinfo->use_gzip = FALSE;
824 bkpinfo->use_lzma = FALSE;
825 bkpinfo->verify_data = FALSE;
826 bkpinfo->backup_data = FALSE;
827 bkpinfo->restore_data = FALSE;
828 bkpinfo->use_star = FALSE;
829 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
830 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
831 if (bkpinfo->disaster_recovery) {
832 mr_asprintf(bkpinfo->isodir, "%s", "/");
833 } else {
834 mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
835 }
836 mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
837 /* bkpinfo->tmpdir is here in the struct */
838 bkpinfo->scratchdir = NULL; // Really setup after
839 bkpinfo->optimal_set_size = 0;
840 bkpinfo->backup_media_type = none;
841 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
842 bkpinfo->include_paths = NULL;
843 bkpinfo->exclude_paths = NULL;
844 bkpinfo->exclude_devs = NULL;
845 bkpinfo->restore_path = NULL;
846 bkpinfo->call_before_iso = NULL;
847 bkpinfo->call_make_iso = NULL;
848 bkpinfo->call_burn_iso = NULL;
849 bkpinfo->call_after_iso = NULL;
850 bkpinfo->kernel_path = NULL;
851 bkpinfo->netfs_mount = NULL;
852 bkpinfo->netfs_remote_dir = NULL;
853 bkpinfo->netfs_user = NULL;
854 bkpinfo->netfs_proto = NULL;
855 bkpinfo->postnuke_tarball = NULL;
856 bkpinfo->wipe_media_first = FALSE;
857 bkpinfo->differential = 0;
858 bkpinfo->please_dont_eject = FALSE;
859 bkpinfo->cdrw_speed = 0;
860 bkpinfo->manual_cd_tray = FALSE;
861 bkpinfo->nonbootable_backup = FALSE;
862 bkpinfo->make_cd_use_lilo = FALSE;
863 bkpinfo->use_obdr = FALSE;
864 bkpinfo->restore_mode = interactive;
865
866 sensibly_set_scratchdir();
867}
868
869
870
871
872/**
873 * Get the remaining free space (in MB) on @p partition.
874 * @param partition The partition to check free space on (either a device or a mountpoint).
875 * @return The free space on @p partition, in MB.
876 */
877long free_space_on_given_partition(char *partition)
878{
879 char *out_sz = NULL;
880 char *command = NULL;
881 long res;
882
883 assert_string_is_neither_NULL_nor_zerolength(partition);
884
885 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
886 if (system(command)) {
887 mr_free(command);
888 return (-1);
889 } // partition does not exist
890 mr_free(command);
891
892 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
893 out_sz = call_program_and_get_last_line_of_output(command);
894 mr_free(command);
895
896 if (strlen(out_sz) == 0) {
897 mr_free(out_sz);
898 return (-1);
899 } // error within df, probably
900 res = atol(out_sz);
901 mr_free(out_sz);
902 return (res);
903}
904
905
906
907/**
908 * Check the user's system for sanity. Checks performed:
909 * - make sure user has enough RAM (32mb required, 64mb recommended)
910 * - make sure user has enough free space in @c /
911 * - check kernel for ramdisk support
912 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
913 * - make sure CD-ROM is unmounted
914 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
915 *
916 * @return number of problems with the user's setup (0 for success)
917 */
918int some_basic_system_sanity_checks()
919{
920
921 /*@ buffers ************ */
922 char *tmp = NULL;
923
924 /*@ int's *************** */
925 int retval = 0;
926
927 mvaddstr_and_log_it(g_currentY, 0,
928 "Checking sanity of your Linux distribution");
929#ifndef __FreeBSD__
930 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
931 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
932 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
933 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
934 }
935 tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
936 if (atol(tmp) < 35000) {
937 retval++;
938 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
939 }
940 if (atol(tmp) < 66000) {
941 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
942 }
943 mr_free(tmp);
944#endif
945
946 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
947 retval++;
948 log_to_screen
949 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
950 fatal_error
951 ("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. :)");
952 }
953#ifndef __FreeBSD__
954 if (run_program_and_log_output
955 ("grep ramdisk /proc/devices", FALSE)) {
956 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
957 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
958 if (run_program_and_log_output
959 ("grep ramdisk /proc/devices", FALSE)) {
960 if (!ask_me_yes_or_no
961 ("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?"))
962 {
963 // retval++;
964 log_to_screen
965 ("It looks as if your kernel lacks ramdisk and initrd support.");
966 log_to_screen
967 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
968 }
969 }
970 }
971#endif
972 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
973 retval += whine_if_not_found("mkisofs");
974 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
975 retval += whine_if_not_found("cdrecord");
976 }
977 retval += whine_if_not_found("bzip2");
978 retval += whine_if_not_found("gzip");
979 retval += whine_if_not_found("awk");
980 retval += whine_if_not_found("md5sum");
981 retval += whine_if_not_found("strings");
982 retval += whine_if_not_found("mindi");
983 retval += whine_if_not_found("buffer");
984
985 // abort if Windows partition but no ms-sys and parted
986 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
987 log_to_screen("I think you have a Windows 9x partition.");
988 retval += whine_if_not_found("parted");
989 }
990
991 tmp = find_home_of_exe("cmp");
992 if (!tmp) {
993 mr_free(tmp);
994 tmp = find_home_of_exe("true");
995 if (!tmp) {
996 retval += whine_if_not_found("cmp");
997 } else {
998 log_to_screen("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
999 if (run_program_and_log_output("cp -f `which true` /usr/bin/cmp", 0)) {
1000 mr_free(tmp);
1001 fatal_error("Failed to create dummy 'cmp' file.");
1002 }
1003 }
1004 }
1005 mr_free(tmp);
1006
1007 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1008 tmp = call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\"");
1009 if (strcmp("", tmp)) {
1010 if (strstr(tmp, "autofs")) {
1011 log_to_screen
1012 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1013 log_to_screen
1014 ("if a CD actually is inserted. If a CD is inserted, please");
1015 log_to_screen("eject it. Thank you.");
1016 log_it
1017 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1018 } else
1019 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1020 retval++;
1021 mr_free(tmp);
1022 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1023 }
1024 }
1025 mr_free(tmp);
1026
1027 run_program_and_log_output("cat /etc/fstab", 5);
1028#ifdef __FreeBSD__
1029 run_program_and_log_output("vinum printconfig", 5);
1030#else
1031 run_program_and_log_output("cat /etc/raidtab", 5);
1032#endif
1033
1034 if (run_program_and_log_output("mindi -V", 1)) {
1035 log_to_screen("Could not ascertain mindi's version number.");
1036 log_to_screen
1037 ("You have not installed Mondo and/or Mindi properly.");
1038 log_to_screen("Please uninstall and reinstall them both.");
1039 fatal_error("Please reinstall Mondo and Mindi.");
1040 }
1041 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1042 if (run_program_and_log_output(tmp, 5)) {
1043 mr_free(tmp);
1044 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1045 log_to_screen(tmp);
1046 log_to_screen
1047 ("Please run that command by hand and examine /var/log/mindi.log");
1048 log_to_screen
1049 ("for more information. Perhaps your /etc/fstab file is insane.");
1050 log_to_screen
1051 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1052 retval++;
1053 }
1054 mr_free(tmp);
1055
1056 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1057 && !does_file_exist("/etc/raidtab")) {
1058 log_to_screen
1059 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1060 create_raidtab_from_mdstat("/etc/raidtab");
1061 }
1062
1063 if (retval) {
1064 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1065 } else {
1066 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1067 }
1068 return (retval);
1069}
1070
1071/**
1072 * Retrieve the line containing @p label from the config file.
1073 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1074 * @param label What to read from the file.
1075 * @param value Where to put it.
1076 * @return 0 for success, 1 for failure.
1077 */
1078char *read_cfg_var(char *config_file, char *label)
1079{
1080 /*@ buffer ****************************************************** */
1081 char *command = NULL;
1082 char *value = NULL;
1083
1084 /*@ end vars *************************************************** */
1085
1086 assert_string_is_neither_NULL_nor_zerolength(config_file);
1087 assert_string_is_neither_NULL_nor_zerolength(label);
1088 if (!does_file_exist(config_file)) {
1089 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1090 return (NULL);
1091 /* BERLIOS: not sure the usage of this one ?
1092 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1093 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1094 return (0);
1095 */
1096 } else {
1097 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1098 value = call_program_and_get_last_line_of_output(command);
1099 mr_free(command);
1100
1101 if (strlen(value) == 0) {
1102 return (NULL);
1103 } else {
1104 return (value);
1105 }
1106 }
1107}
1108
1109
1110
1111/**
1112 * Remount @c supermount if it was unmounted earlier.
1113 */
1114void remount_supermounts_if_necessary()
1115{
1116 if (g_remount_cdrom_at_end) {
1117 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1118 }
1119 if (g_remount_floppy_at_end) {
1120 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1121 }
1122}
1123
1124/**
1125 * Unmount @c supermount if it's mounted.
1126 */
1127void unmount_supermounts_if_necessary()
1128{
1129 if (run_program_and_log_output
1130 ("mount | grep cdrom | grep super", FALSE) == 0) {
1131 g_remount_cdrom_at_end = TRUE;
1132 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1133 }
1134 if (run_program_and_log_output
1135 ("mount | grep floppy | grep super", FALSE) == 0) {
1136 g_remount_floppy_at_end = TRUE;
1137 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1138 }
1139}
1140
1141/**
1142 * Whether we had to stop autofs (if so, restart it at end).
1143 */
1144bool g_autofs_stopped = FALSE;
1145
1146/**
1147 * Path to the autofs initscript ("" if none exists).
1148 */
1149char g_autofs_exe[MAX_STR_LEN];
1150
1151/**
1152 * Autofs initscript in Xandros Linux distribution.
1153 */
1154#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1155
1156/**
1157 * Autofs initscript in most Linux distributions.
1158 */
1159#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1160
1161/**
1162 * If autofs is mounted, stop it (restart at end).
1163 */
1164void stop_autofs_if_necessary()
1165{
1166 char *tmp = NULL;
1167
1168 g_autofs_exe[0] = '\0';
1169 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1170 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1171 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1172 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1173 }
1174
1175 if (!g_autofs_exe[0]) {
1176 log_msg(3, "No autofs detected.");
1177 } else {
1178 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1179 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1180 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1181 if (run_program_and_log_output(tmp, 2)) {
1182 log_it("Failed to stop autofs - I assume it wasn't running");
1183 } else {
1184 g_autofs_stopped = TRUE;
1185 log_it("Stopped autofs OK");
1186 }
1187 mr_free(tmp);
1188 }
1189}
1190
1191/**
1192 * If autofs was stopped earlier, restart it.
1193 */
1194void restart_autofs_if_necessary()
1195{
1196 char *tmp = NULL;
1197
1198 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1199 log_msg(3, "No autofs detected.");
1200 return;
1201 }
1202 mr_asprintf(tmp, "%s start", g_autofs_exe);
1203 if (run_program_and_log_output(tmp, 2)) {
1204 log_it("Failed to start autofs");
1205 } else {
1206 g_autofs_stopped = FALSE;
1207 log_it("Started autofs OK");
1208 }
1209 mr_free(tmp);
1210}
1211
1212
1213/**
1214 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1215 */
1216void mount_boot_if_necessary() {
1217 char *tmp = NULL;
1218 char *command = NULL;
1219
1220 log_msg(1, "Started sub");
1221 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1222 g_boot_mountpt[0] = '\0';
1223 log_msg(4, "Done. Great. Seeting command to something");
1224 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1225 log_msg(4, "Cool. Command = '%s'", command);
1226 tmp = call_program_and_get_last_line_of_output(command);
1227 mr_free(command);
1228
1229 log_msg(4, "tmp = '%s'", tmp);
1230 log_it("/boot is at %s according to /etc/fstab", tmp);
1231 mr_asprintf(command, "mount | grep -Ew '/boot'");
1232 mr_free(tmp);
1233 tmp = call_program_and_get_last_line_of_output(command);
1234 mr_free(command);
1235
1236 if (!strcmp(tmp,"")) {
1237 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1238 if (!run_program_and_log_output("mount /boot", 5)) {
1239 strcpy(g_boot_mountpt, "/boot");
1240 log_msg(1, "Mounted /boot");
1241 } else {
1242 log_it("...ignored cos it's a label or uuid :-)");
1243 }
1244 } else {
1245 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1246 log_msg(3, "command = %s", command);
1247 if (run_program_and_log_output(command, 5)) {
1248 strcpy(g_boot_mountpt, tmp);
1249 mr_free(tmp);
1250 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1251
1252 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1253 if (run_program_and_log_output(tmp, 5)) {
1254 g_boot_mountpt[0] = '\0';
1255 log_msg(1, "Plan B");
1256 if (!run_program_and_log_output("mount /boot", 5)) {
1257 strcpy(g_boot_mountpt, "/boot");
1258 log_msg(1, "Plan B worked");
1259 } else {
1260 log_msg(1,
1261 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1262 }
1263 }
1264 }
1265 mr_free(command);
1266 }
1267 }
1268 mr_free(tmp);
1269 log_msg(1, "Ended sub");
1270}
1271
1272
1273/**
1274 * If we mounted /boot earlier, unmount it.
1275 */
1276void unmount_boot_if_necessary()
1277{
1278 char *tmp = NULL;
1279
1280 log_msg(3, "starting");
1281 if (g_boot_mountpt[0]) {
1282 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1283 if (run_program_and_log_output(tmp, 5)) {
1284 log_it("WARNING - unable to unmount /boot");
1285 }
1286 mr_free(tmp);
1287 }
1288 log_msg(3, "leaving");
1289}
1290
1291
1292
1293/**
1294 * Write a line to a configuration file. Writes a line of the form,
1295 * @c label @c value.
1296 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1297 * @param label What to call this bit of data you're writing.
1298 * @param value The bit of data you're writing.
1299 * @return 0 for success, 1 for failure.
1300 */
1301int write_cfg_var(char *config_file, char *label, char *value)
1302{
1303 /*@ buffers ***************************************************** */
1304 char *command = NULL;
1305 char *tempfile = NULL;
1306
1307
1308 /*@ end vars *************************************************** */
1309 assert_string_is_neither_NULL_nor_zerolength(config_file);
1310 assert_string_is_neither_NULL_nor_zerolength(label);
1311 assert(value != NULL);
1312 if (!does_file_exist(config_file)) {
1313 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1314 return (1);
1315 }
1316 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1317 if (does_file_exist(config_file)) {
1318 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1319 paranoid_system(command);
1320 mr_free(command);
1321 }
1322 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1323 paranoid_system(command);
1324 mr_free(command);
1325
1326 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1327 paranoid_system(command);
1328 mr_free(command);
1329 unlink(tempfile);
1330 mr_free(tempfile);
1331 return (0);
1332}
1333
1334
1335/**
1336 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1337 * information to the logfile.
1338 */
1339void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1340
1341 va_list args;
1342 static int depth = 0;
1343 FILE *fout;
1344
1345 if (depth > 5) {
1346 depth--;
1347 return;
1348 }
1349 depth++;
1350
1351 if (debug_level <= g_loglevel) {
1352 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1353 return;
1354 }
1355
1356 // add tabs to distinguish log levels
1357 if (debug_level > 0) {
1358 fprintf(fout, "DBG%d: ", debug_level);
1359 if (getpid() == g_main_pid)
1360 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1361 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1362 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1363 else
1364 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1365 } else {
1366 fprintf(fout, "INFO: ");
1367 }
1368 va_start(args, fmt);
1369 vfprintf(fout, fmt, args);
1370 va_end(args);
1371
1372 fprintf(fout, "\n");
1373 paranoid_fclose(fout);
1374 }
1375 depth--;
1376}
1377
1378/**
1379 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1380 */
1381void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1382 ...) = standard_log_debug_msg;
1383
1384
1385/**
1386 * Allocate or free important globals, depending on @p mal.
1387 * @param mal If TRUE, malloc; if FALSE, free.
1388 */
1389void do_libmondo_global_strings_thing(int mal)
1390{
1391 if (mal) {
1392 malloc_string(g_boot_mountpt);
1393 malloc_string(g_mondo_home);
1394 malloc_string(g_magicdev_command);
1395 } else {
1396 paranoid_free(g_boot_mountpt);
1397 paranoid_free(g_mondo_home);
1398 paranoid_free(g_magicdev_command);
1399
1400 mr_free(g_serial_string);
1401 }
1402}
1403
1404/**
1405 * Allocate important globals.
1406 * @see do_libmondo_global_strings_thing
1407 */
1408void malloc_libmondo_global_strings(void)
1409{
1410 do_libmondo_global_strings_thing(1);
1411}
1412
1413/**
1414 * Free important globals.
1415 * @see do_libmondo_global_strings_thing
1416 */
1417void free_libmondo_global_strings(void)
1418{
1419 do_libmondo_global_strings_thing(0);
1420}
1421
1422
1423
1424/**
1425 * Stop @c magicdev if it's running.
1426 * The command used to start it is saved in @p g_magicdev_command.
1427 */
1428void stop_magicdev_if_necessary() {
1429
1430 char *tmp = NULL;
1431
1432 tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1433
1434 strcpy(g_magicdev_command, tmp);
1435 mr_free(tmp);
1436
1437 if (g_magicdev_command[0]) {
1438 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1439 paranoid_system("killall magicdev");
1440 }
1441}
1442
1443
1444/**
1445 * Restart magicdev if it was stopped.
1446 */
1447void restart_magicdev_if_necessary()
1448{
1449 char *tmp = NULL;
1450
1451 if (g_magicdev_command && g_magicdev_command[0]) {
1452 mr_asprintf(tmp, "%s &", g_magicdev_command);
1453 paranoid_system(tmp);
1454 mr_free(tmp);
1455 }
1456}
1457
1458/* @} - end of utilityGroup */
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