source: MondoRescue/branches/2.2.5/mondo/src/mondoarchive/main.c@ 1644

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

Apply patch from Andree Leidenfrost, modified a bit to use bkpinfo->tmpdir instead of /tmp
or MINDI_CACHE when appropriate. Fix security issues in mondo
Thanks al ot Andree for catching all those issues.
Will not compile needs more work as bkpinfo->tmpdir isn't available everywhere
Should become a global in 3.x when only containing pointers.
  • Property svn:keywords set to Id
File size: 16.5 KB
Line 
1/***************************************************************************
2 main.c - description
3 -------------------
4 begin : Fri Apr 19 16:40:35 EDT 2002
5 copyright : (C) 2002 by Stan Benoit
6 email : troff@nakedsoul.org
7 cvsid : $Id: main.c 1644 2007-09-23 00:41:29Z bruno $
8 ***************************************************************************/
9
10/***************************************************************************
11 * *
12 * This program is free software; you can redistribute it and/or modify *
13 * it under the terms of the GNU General Public License as published by *
14 * the Free Software Foundation; either version 2 of the License, or *
15 * (at your option) any later version. *
16 * *
17 ***************************************************************************/
18
19/** change log ****** MONDO-DEVEL
20
21
2212/10
23- disable stopping/starting of autofs
24
2510/01
26- update g_erase_tmpdir_and_scratchdir to delete user-specified tmpdir, scratchdir
27
2806/19
29- added AUX_VER
30
3106/14/2004
32- use mondorescue.iso, not mindi.iso
33
3402/10/2004
35- tell users where BusyBox's sources are
36
3711/14/2003
38- cleaned up logging at end#
39
4010/23
41- don't try to test-read tape ... That's already
42 handled by post_param_configuration()
43
4410/19
45- if your PATH var is too long, abort
46
4709/23
48- added some comments
49- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
50 and free_libmondo_global_strings() - which are in libmondo-tools.c
51- better magicdev support
52
53
5409/16
55- delete /var/log/partimagehack-debug.log at start of main()
56
5709/15
58- added askbootloader
59
6009/09
61- if your tape is weird, I'll pause between backup and verify
62- fixed silly bug in main() - re: say_at_end
63
6401/01 - 08/31
65- call 'dmesg -n1' at start, to shut the kernel logger up
66- moved g_erase_tmpdir_and_scratchdir to common/newt-specific.c
67- added 'don't panic' msg to start of logfile
68- added 'nice(20)' to main()
69- added lots of assert()'s and log_OS_error()'s
70- clean-up (Hugo)
71- make post_param_configuration() setup g_erase_tmpdir_and_scratchdir
72- if --version then print & exit quickly
73- re-run g_erase_tmpdir_and_scratchdir via system() at very end
74
75Year: 2002
76- if user goes root with 'su' instead of 'su -' then
77 workaround it by setting PATH correctly
78- wipe mondoarchive.log at very beginning
79- cleaned up code
80- if changed.files.N exists then copy to changes.files for display
81- run_program_and_log_output() now takes boolean operator to specify
82 whether it will log its activities in the event of _success_
83- added popup list of changed files
84- removed 'beta-quality' warnings
85- if kernel not found and mondo in graphics mode then popup and ask
86 for kernel path+filename
87- fixed tmp[] 'too small' bug
88- unmount and eject CD at end of verify cycle
89- moved interactively_obtain...() to libmondo-stream.c
90- wrote stuff to autodetect tape+cdrw+etc.
91- renamed from main.c to mondo-archive.c
92- fore+after warnings that this code is beta-quality
93- abort if running from ramdisk
94- remount floppy at end & unmount at start if Mandrake
95- took out #debug stuff
96- add 2> /dev/null to 'find' command
97- add support for bkpinfo->nonbootable_backup
98- add main function begin comment and debug conditional
99 compilation - Stan Benoit
100- add debug statements to build a run tree. Stan Benoit
101**** end change log **********/
102
103
104/**
105 * @file
106 * The main file for mondoarchive.
107 */
108
109/************************* #include statements *************************/
110#include <pthread.h>
111//#include <config.h>
112//#include "../../config.h"
113#include <stdio.h>
114#include <stdlib.h>
115#include "../common/my-stuff.h"
116#include "../common/mondostructures.h"
117#include "../common/libmondo.h"
118#include "mondo-cli-EXT.h"
119#include "../common/libmondo-tools-EXT.h"
120#include "mondoarchive.h"
121
122// for CVS
123//static char cvsid[] = "$Id: main.c 1644 2007-09-23 00:41:29Z bruno $";
124
125/************************* external variables *************************/
126extern void set_signals(int);
127extern int g_current_media_number;
128extern void register_pid(pid_t, char *);
129extern int g_currentY;
130extern bool g_text_mode;
131extern char *g_boot_mountpt;
132extern bool g_remount_cdrom_at_end, g_remount_floppy_at_end;
133extern char *g_mondo_home;
134extern char *g_tmpfs_mountpt;
135extern char *g_erase_tmpdir_and_scratchdir;
136extern char *g_cdrw_drive_is_here;
137static char *g_cdrom_drive_is_here = NULL;
138static char *g_dvd_drive_is_here = NULL;
139extern double g_kernel_version;
140
141/***************** global vars, used only by main.c ******************/
142bool g_skip_floppies;
143long diffs;
144
145extern t_bkptype g_backup_media_type;
146extern int g_loglevel;
147
148/****************** subroutines used only by main.c ******************/
149
150
151/**
152 * Print a "don't panic" message to the log and a message about the logfile to the screen.
153 */
154void welcome_to_mondoarchive(void)
155{
156 char *tmp = NULL;
157
158 log_msg(0, "Mondo Archive v%s --- http://www.mondorescue.org",
159 PACKAGE_VERSION);
160 log_msg(0, "running %s binaries", get_architecture());
161 tmp = get_uname_m();
162 log_msg(0, "running on %s architecture", tmp);
163 free(tmp);
164 log_msg(0,
165 "-----------------------------------------------------------");
166 log_msg(0,
167 "NB: Mondo logs almost everything, so don't panic if you see");
168 log_msg(0,
169 "some error messages. Please read them carefully before you");
170 log_msg(0,
171 "decide to break out in a cold sweat. Despite (or perhaps");
172 log_msg(0,
173 "because of) the wealth of messages. some users are inclined");
174 log_msg(0,
175 "to stop reading this log. If Mondo stopped for some reason,");
176 log_msg(0,
177 "chances are it's detailed here. More than likely there's a");
178 log_msg(0,
179 "message at the very end of this log that will tell you what");
180 log_msg(0,
181 "is wrong. Please read it! -Devteam");
182 log_msg(0,
183 "-----------------------------------------------------------");
184
185 log_msg(0, "Zero...");
186 log_msg(1, "One...");
187 log_msg(2, "Two...");
188 log_msg(3, "Three...");
189 log_msg(4, "Four...");
190 log_msg(5, "Five...");
191 log_msg(6, "Six...");
192 log_msg(7, "Seven...");
193 log_msg(8, "Eight...");
194 printf("See %s for details of backup run.\n", MONDO_LOGFILE);
195}
196
197
198extern char *g_magicdev_command;
199
200/**
201 * Do whatever is necessary to insure a successful backup on the Linux distribution
202 * of the day.
203 */
204void distro_specific_kludges_at_start_of_mondoarchive(void)
205{
206 log_msg(2, "Unmounting old ramdisks if necessary");
207 stop_magicdev_if_necessary(); // for RH+Gnome users
208 run_program_and_log_output
209 ("umount `mount | grep shm | grep mondo | cut -d' ' -f3`", 2);
210 unmount_supermounts_if_necessary(); // for Mandrake users whose CD-ROMs are supermounted
211 // stop_autofs_if_necessary(); // for Xandros users
212 mount_boot_if_necessary(); // for Gentoo users with non-mounted /boot partitions
213 clean_up_KDE_desktop_if_necessary(); // delete various misc ~/.* files that get in the way
214}
215
216
217
218/**
219 * Undo whatever was done by distro_specific_kludges_at_start_of_mondoarchive().
220 */
221void distro_specific_kludges_at_end_of_mondoarchive(void)
222{
223// char tmp[500];
224 log_msg(2, "Restarting magicdev if necessary");
225 sync();
226 restart_magicdev_if_necessary(); // for RH+Gnome users
227
228 log_msg(2, "Restarting autofs if necessary");
229 sync();
230 // restart_autofs_if_necessary(); // for Xandros users
231
232 log_msg(2, "Restarting supermounts if necessary");
233 sync();
234 remount_supermounts_if_necessary(); // for Mandrake users
235
236 log_msg(2, "Unmounting /boot if necessary");
237 sync();
238 unmount_boot_if_necessary(); // for Gentoo users
239
240// log_msg( 2, "Cleaning up KDE desktop");
241// clean_up_KDE_desktop_if_necessary();
242}
243
244/* Return a string containing the date */
245char *mr_date(void) {
246
247 time_t tcurr;
248
249 tcurr = time(NULL);
250 return(ctime(&tcurr));
251}
252
253/*-----------------------------------------------------------*/
254
255
256
257/**
258 * Backup/verify the user's data.
259 * What did you think it did, anyway? :-)
260 */
261int main(int argc, char *argv[])
262{
263 struct s_bkpinfo *bkpinfo;
264 char *tmp;
265 int res, retval;
266 char *say_at_end;
267
268/* Make sure I'm root; abort if not */
269 if (getuid() != 0) {
270 fprintf(stderr, "Please run as root.\r\n");
271 exit(127);
272 }
273
274/* If -V, -v or --version then echo version no. and quit */
275 if (argc == 2
276 && (!strcmp(argv[argc - 1], "-v") || !strcmp(argv[argc - 1], "-V")
277 || !strcmp(argv[argc - 1], "--version"))) {
278 printf("mondoarchive v%s\nSee man page for help\n", PACKAGE_VERSION);
279 exit(0);
280 }
281
282/* Initialize variables */
283
284 malloc_libmondo_global_strings();
285 malloc_string(tmp);
286 malloc_string(say_at_end);
287
288 res = 0;
289 retval = 0;
290 diffs = 0;
291 say_at_end[0] = '\0';
292 printf("Initializing...\n");
293 if (!(bkpinfo = malloc(sizeof(struct s_bkpinfo)))) {
294 fatal_error("Cannot malloc bkpinfo");
295 }
296
297 /* initialize log file with time stamp */
298 unlink(MONDO_LOGFILE);
299 log_msg(0, "Time started: %s", mr_date());
300
301 /* make sure PATH environmental variable allows access to mkfs, fdisk, etc. */
302 strncpy(tmp, getenv("PATH"), MAX_STR_LEN - 1);
303 tmp[MAX_STR_LEN - 1] = '\0';
304 if (strlen(tmp) >= MAX_STR_LEN - 33) {
305 fatal_error
306 ("Your PATH environmental variable is too long. Please shorten it.");
307 }
308 strcat(tmp, ":/sbin:/usr/sbin:/usr/local/sbin");
309 setenv("PATH", tmp, 1);
310
311 /* Add the ARCH environment variable for ia64 purposes */
312 strncpy(tmp, get_architecture(), MAX_STR_LEN - 1);
313 tmp[MAX_STR_LEN - 1] = '\0';
314 setenv("ARCH", tmp, 1);
315
316 /* Add MONDO_SHARE environment variable for mindi */
317 setenv_mondo_share();
318
319 /* Configure the bkpinfo structure, global file paths, etc. */
320 g_main_pid = getpid();
321 log_msg(9, "This");
322
323 register_pid(g_main_pid, "mondo");
324 set_signals(TRUE); // catch SIGTERM, etc.
325 run_program_and_log_output("dmesg -n1", TRUE);
326
327 log_msg(9, "Next");
328 welcome_to_mondoarchive();
329 distro_specific_kludges_at_start_of_mondoarchive();
330 g_kernel_version = get_kernel_version();
331
332 if (argc == 4 && !strcmp(argv[1], "getfattr")) {
333 g_loglevel = 10;
334 g_text_mode = TRUE;
335 setup_newt_stuff();
336 if (!strstr(argv[2], "filelist")) {
337 printf("Sorry - filelist goes first\n");
338 finish(1);
339 } else {
340 finish(get_fattr_list(argv[2], argv[3]));
341 }
342 finish(0);
343 }
344 if (argc == 4 && !strcmp(argv[1], "setfattr")) {
345 g_loglevel = 10;
346// chdir("/tmp");
347 g_text_mode = TRUE;
348 setup_newt_stuff();
349 finish(set_fattr_list(argv[2], argv[3]));
350 }
351
352 if (argc == 3 && !strcmp(argv[1], "wildcards")) {
353 g_loglevel = 10;
354 g_text_mode = TRUE;
355 setup_newt_stuff();
356 turn_wildcard_chars_into_literal_chars(tmp, argv[2]);
357 printf("in=%s; out=%s\n", argv[2], tmp);
358 finish(1);
359 }
360
361 if (argc == 4 && !strcmp(argv[1], "getfacl")) {
362 g_loglevel = 10;
363 g_text_mode = TRUE;
364 setup_newt_stuff();
365 if (!strstr(argv[2], "filelist")) {
366 printf("Sorry - filelist goes first\n");
367 finish(1);
368 } else {
369 finish(get_acl_list(argv[2], argv[3]));
370 }
371 finish(0);
372 }
373 if (argc == 4 && !strcmp(argv[1], "setfacl")) {
374 g_loglevel = 10;
375// chdir("/tmp");
376 g_text_mode = TRUE;
377 setup_newt_stuff();
378 finish(set_acl_list(argv[2], argv[3]));
379 }
380
381 if (argc > 2 && !strcmp(argv[1], "find-cd")) {
382 g_loglevel = 10;
383 g_text_mode = TRUE;
384 setup_newt_stuff();
385 if (find_cdrw_device(tmp)) {
386 printf("Failed to find CDR-RW drive\n");
387 } else {
388 printf("CD-RW is at %s\n", tmp);
389 }
390 tmp[0] = '\0';
391 if (find_cdrom_device(tmp, atoi(argv[2]))) {
392 printf("Failed to find CD-ROM drive\n");
393 } else {
394 printf("CD-ROM is at %s\n", tmp);
395 }
396 finish(0);
397 }
398
399 if (argc > 2 && !strcmp(argv[1], "find-dvd")) {
400 g_loglevel = 10;
401 g_text_mode = TRUE;
402 setup_newt_stuff();
403 if (find_dvd_device(tmp, atoi(argv[2]))) {
404 printf("Failed to find DVD drive\n");
405 } else {
406 printf("DVD is at %s\n", tmp);
407 }
408 finish(0);
409 }
410
411 if (argc > 2 && !strcmp(argv[1], "disksize")) {
412 printf("%s --> %ld\n", argv[2], get_phys_size_of_drive(argv[2]));
413 finish(0);
414 }
415 if (argc > 2 && !strcmp(argv[1], "test-dev")) {
416 if (is_dev_an_NTFS_dev(argv[2])) {
417 printf("%s is indeed an NTFS dev\n", argv[2]);
418 } else {
419 printf("%s is _not_ an NTFS dev\n", argv[2]);
420 }
421 finish(0);
422 }
423
424 if (pre_param_configuration(bkpinfo)) {
425 fatal_error
426 ("Pre-param initialization phase failed. Please review the error messages above, make the specified changes, then try again. Exiting...");
427 }
428
429/* Process command line, if there is one. If not, ask user for info. */
430 if (argc == 1) {
431 g_text_mode = FALSE;
432 setup_newt_stuff();
433 res = interactively_obtain_media_parameters_from_user(bkpinfo, TRUE); /* yes, archiving */
434 if (res) {
435 fatal_error
436 ("Syntax error. Please review the parameters you have supplied and try again.");
437 }
438 } else {
439 res = handle_incoming_parameters(argc, argv, bkpinfo);
440 if (res) {
441 printf
442 ("Errors were detected in the command line you supplied.\n");
443 printf("Please review the log file - %s\n", MONDO_LOGFILE );
444 log_msg(1, "Mondoarchive will now exit.");
445 finish(1);
446 }
447 setup_newt_stuff();
448 }
449
450/* Finish configuring global structures */
451 if (post_param_configuration(bkpinfo)) {
452 fatal_error
453 ("Post-param initialization phase failed. Perhaps bad parameters were supplied to mondoarchive? Please review the documentation, error messages and logs. Exiting...");
454 }
455
456 log_to_screen
457 ("BusyBox's sources are available from http://www.busybox.net");
458 sprintf(g_erase_tmpdir_and_scratchdir, "rm -Rf %s %s", bkpinfo->tmpdir,
459 bkpinfo->scratchdir);
460
461 /* If we're meant to backup then backup */
462 if (bkpinfo->backup_data) {
463 res = backup_data(bkpinfo);
464 retval += res;
465 if (res) {
466 strcat(say_at_end,
467 "Data archived. Please check the logs, just as a precaution. ");
468 } else {
469 strcat(say_at_end, "Data archived OK. ");
470 }
471 }
472
473/* If we're meant to verify then verify */
474 if (bkpinfo->verify_data) {
475 res = verify_data(bkpinfo);
476 if (res < 0) {
477 sprintf(tmp, "%d difference%c found.", -res,
478 (-res != 1) ? 's' : ' ');
479 strcat(say_at_end, tmp);
480 log_to_screen(tmp);
481 res = 0;
482 }
483 retval += res;
484 }
485
486/* Offer to write floppy disk images to physical disks */
487 if (bkpinfo->backup_data && !g_skip_floppies) {
488 res = offer_to_write_boot_floppies_to_physical_disks(bkpinfo);
489 retval += res;
490// res = offer_to_write_boot_ISO_to_physical_CD(bkpinfo);
491// retval += res;
492 }
493
494/* Report result of entire operation (success? errors?) */
495 if (!retval) {
496 mvaddstr_and_log_it(g_currentY++, 0,
497 "Backup and/or verify ran to completion. Everything appears to be fine.");
498 } else {
499 mvaddstr_and_log_it(g_currentY++, 0,
500 "Backup and/or verify ran to completion. However, errors did occur.");
501 }
502
503 if (does_file_exist(MINDI_CACHE"/mondorescue.iso")) {
504 log_to_screen
505 (MINDI_CACHE"/mondorescue.iso, a boot/utility CD, is available if you want it.");
506 }
507
508 if (length_of_file(MINDI_CACHE"/changed.files") > 2) {
509 if (g_text_mode) {
510 log_to_screen("Type 'less "MINDI_CACHE"/changed.files' to see which files don't match the archives");
511 } else {
512 log_msg(1, "Type 'less "MINDI_CACHE"/changed.files' to see which files don't match the archives");
513 log_msg(2, "Calling popup_changelist_from_file()");
514 popup_changelist_from_file(MINDI_CACHE"/changed.files");
515 log_msg(2, "Returned from popup_changelist_from_file()");
516 }
517 } else {
518 unlink(MINDI_CACHE"/changed.files");
519 }
520 log_to_screen(say_at_end);
521 sprintf(tmp, "umount %s/tmpfs", bkpinfo->tmpdir);
522 run_program_and_log_output(tmp, TRUE);
523 run_program_and_log_output(g_erase_tmpdir_and_scratchdir, TRUE);
524
525 run_program_and_log_output("mount", 2);
526
527 system("rm -f /var/cache/mondo-archive/last-backup.aborted");
528 if (!retval) {
529 printf("Mondoarchive ran OK.\n");
530 } else {
531 printf("Errors occurred during backup. Please check logfile.\n");
532 }
533 distro_specific_kludges_at_end_of_mondoarchive();
534 register_pid(0, "mondo");
535 set_signals(FALSE);
536 chdir("/tmp"); // just in case there's something wrong with g_erase_tmpdir_and_scratchdir
537 system(g_erase_tmpdir_and_scratchdir);
538
539 /* assemble comand string for deletion of Mondo's tmp directory */
540 sprintf(tmp, "rm -Rf %s", bkpinfo->tmpdir);
541
542 free_libmondo_global_strings();
543 paranoid_free(say_at_end);
544 paranoid_free(bkpinfo);
545
546 if (!g_cdrom_drive_is_here) {
547 log_msg(10, "FYI, g_cdrom_drive_is_here was never used");
548 }
549 if (!g_dvd_drive_is_here) {
550 log_msg(10, "FYI, g_dvd_drive_is_here was never used");
551 }
552
553 /* finalize log file with time stamp */
554 log_msg(0, "Time finished: %s", mr_date());
555
556 /* remove Mondo's tmp directory */
557 system(tmp);
558 paranoid_free(tmp);
559
560 if (!g_text_mode) {
561 popup_and_OK
562 ("Mondo Archive has finished its run. Please press ENTER to return to the shell prompt.");
563 log_to_screen("See %s for details of backup run.", MONDO_LOGFILE);
564 finish(retval);
565 } else {
566 printf("See %s for details of backup run.\n", MONDO_LOGFILE);
567 exit(retval);
568 }
569
570 return EXIT_SUCCESS;
571}
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