source: trunk/mondo/mondo/mondoarchive/main.c @ 59

Last change on this file since 59 was 59, checked in by bcornec, 14 years ago

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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 59 2005-10-10 23:34:31Z bcornec $
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
120#ifndef VERSION
121#define VERSION AUX_VER
122#endif
123
124
125char g_version[] = VERSION;
126
127
128// for CVS
129//static char cvsid[] = "$Id: main.c 59 2005-10-10 23:34:31Z bcornec $";
130
131/************************* external variables *************************/
132extern void set_signals(int);
133extern int g_current_media_number;
134extern void register_pid(pid_t, char *);
135extern int g_currentY;
136extern bool g_text_mode;
137extern char *g_boot_mountpt;
138extern bool g_remount_cdrom_at_end, g_remount_floppy_at_end;
139extern char *g_mondo_home;
140extern char *g_tmpfs_mountpt;
141extern char *g_erase_tmpdir_and_scratchdir;
142extern char *g_cdrw_drive_is_here;
143static char *g_cdrom_drive_is_here = NULL;
144static char *g_dvd_drive_is_here = NULL;
145extern double g_kernel_version;
146
147/***************** global vars, used only by main.c ******************/
148bool g_skip_floppies;
149long diffs;
150
151extern t_bkptype g_backup_media_type;
152extern int g_loglevel;
153
154/****************** subroutines used only by main.c ******************/
155
156
157/**
158 * Print a "don't panic" message to the log and a message about the logfile to the screen.
159 */
160void welcome_to_mondoarchive()
161{
162    log_msg(0, "Mondo Archive v%s --- http://www.mondorescue.org",
163            VERSION);
164    log_msg(0, "running on %s architecture", get_architecture());
165    log_msg(0,
166            "-----------------------------------------------------------");
167    log_msg(0,
168            "NB: Mondo logs almost everything, so don't panic if you see");
169    log_msg(0,
170            "some error messages.  Please read them carefully before you");
171    log_msg(0,
172            "decide to break out in a cold sweat.    Despite (or perhaps");
173    log_msg(0,
174            "because of) the wealth of messages. some users are inclined");
175    log_msg(0,
176            "to stop reading this log. If Mondo stopped for some reason,");
177    log_msg(0,
178            "chances are it's detailed here.  More than likely there's a");
179    log_msg(0,
180            "message at the very end of this log that will tell you what");
181    log_msg(0,
182            "is wrong. Please read it!                          -Devteam");
183    log_msg(0,
184            "-----------------------------------------------------------");
185
186    log_msg(0, "Zero...");
187    log_msg(1, "One...");
188    log_msg(2, "Two...");
189    log_msg(3, "Three...");
190    log_msg(4, "Four...");
191    log_msg(5, "Five...");
192    log_msg(6, "Six...");
193    log_msg(7, "Seven...");
194    log_msg(8, "Eight...");
195    printf("See %s for details of backup run.\n", MONDO_LOGFILE);
196}
197
198
199extern char *g_magicdev_command;
200
201/**
202 * Do whatever is necessary to insure a successful backup on the Linux distribution
203 * of the day.
204 */
205void distro_specific_kludges_at_start_of_mondoarchive()
206{
207    log_msg(2, "Unmounting old ramdisks if necessary");
208    stop_magicdev_if_necessary();   // for RH+Gnome users
209    run_program_and_log_output
210        ("umount `mount | grep shm | grep mondo | cut -d' ' -f3`", 2);
211    unmount_supermounts_if_necessary(); // for Mandrake users whose CD-ROMs are supermounted
212    //  stop_autofs_if_necessary(); // for Xandros users
213    mount_boot_if_necessary();  // for Gentoo users with non-mounted /boot partitions
214    clean_up_KDE_desktop_if_necessary();    // delete various misc ~/.* files that get in the way
215}
216
217
218
219/**
220 * Undo whatever was done by distro_specific_kludges_at_start_of_mondoarchive().
221 */
222void distro_specific_kludges_at_end_of_mondoarchive()
223{
224//  char tmp[500];
225    log_msg(2, "Restarting magicdev if necessary");
226    sync();
227    restart_magicdev_if_necessary();    // for RH+Gnome users
228
229    log_msg(2, "Restarting autofs if necessary");
230    sync();
231    //  restart_autofs_if_necessary(); // for Xandros users
232
233    log_msg(2, "Restarting supermounts if necessary");
234    sync();
235    remount_supermounts_if_necessary(); // for Mandrake users
236
237    log_msg(2, "Unmounting /boot if necessary");
238    sync();
239    unmount_boot_if_necessary();    // for Gentoo users
240
241//  log_msg( 2, "Cleaning up KDE desktop");
242//  clean_up_KDE_desktop_if_necessary();
243}
244
245
246/*-----------------------------------------------------------*/
247
248
249
250/**
251 * Backup/verify the user's data.
252 * What did you think it did, anyway? :-)
253 */
254int main(int argc, char *argv[])
255{
256    struct s_bkpinfo *bkpinfo;
257    char *tmp;
258    int res, retval;
259    char *say_at_end;
260
261/* Make sure I'm root; abort if not */
262    if (getuid() != 0) {
263        fprintf(stderr, "Please run as root.\r\n");
264        exit(127);
265    }
266
267/* If -V, -v or --version then echo version no. and quit */
268    if (argc == 2
269        && (!strcmp(argv[argc - 1], "-v") || !strcmp(argv[argc - 1], "-V")
270            || !strcmp(argv[argc - 1], "--version"))) {
271        printf("mondoarchive v%s\nSee man page for help\n", VERSION);
272        exit(0);
273    }
274
275/* Initialize variables */
276
277    malloc_libmondo_global_strings();
278    malloc_string(tmp);
279    malloc_string(say_at_end);
280
281    res = 0;
282    retval = 0;
283    diffs = 0;
284    say_at_end[0] = '\0';
285    unlink("/var/log/partimagehack-debug.log");
286    printf("Initializing...\n");
287    if (!(bkpinfo = malloc(sizeof(struct s_bkpinfo)))) {
288        fatal_error("Cannot malloc bkpinfo");
289    }
290
291
292/* make sure PATH environmental variable allows access to mkfs, fdisk, etc. */
293    strncpy(tmp, getenv("PATH"), MAX_STR_LEN - 1);
294    tmp[MAX_STR_LEN - 1] = '\0';
295    if (strlen(tmp) >= MAX_STR_LEN - 33) {
296        fatal_error
297            ("Your PATH environmental variable is too long. Please shorten it.");
298    }
299    strcat(tmp, ":/sbin:/usr/sbin:/usr/local/sbin");
300    setenv("PATH", tmp, 1);
301
302/* Add the ARCH environment variable for ia64 purposes */
303    strncpy(tmp, get_architecture(), MAX_STR_LEN - 1);
304    tmp[MAX_STR_LEN - 1] = '\0';
305    setenv("ARCH", tmp, 1);
306
307    unlink(MONDO_LOGFILE);
308
309/* Configure the bkpinfo structure, global file paths, etc. */
310    g_main_pid = getpid();
311    log_msg(9, "This");
312
313    register_pid(g_main_pid, "mondo");
314    set_signals(TRUE);          // catch SIGTERM, etc.
315    nice(10);
316    run_program_and_log_output("dmesg -n1", TRUE);
317
318    log_msg(9, "Next");
319    welcome_to_mondoarchive();
320    distro_specific_kludges_at_start_of_mondoarchive();
321    sprintf(g_erase_tmpdir_and_scratchdir, "rm -Rf %s %s", bkpinfo->tmpdir,
322            bkpinfo->scratchdir);
323    g_kernel_version = get_kernel_version();
324
325    if (argc == 4 && !strcmp(argv[1], "getfattr")) {
326        g_loglevel = 10;
327        g_text_mode = TRUE;
328        setup_newt_stuff();
329        if (!strstr(argv[2], "filelist")) {
330            printf("Sorry - filelist goes first\n");
331            finish(1);
332        } else {
333            finish(get_fattr_list(argv[2], argv[3]));
334        }
335        finish(0);
336    }
337    if (argc == 4 && !strcmp(argv[1], "setfattr")) {
338        g_loglevel = 10;
339//      chdir("/tmp");
340        g_text_mode = TRUE;
341        setup_newt_stuff();
342        finish(set_fattr_list(argv[2], argv[3]));
343    }
344
345    if (argc == 3 && !strcmp(argv[1], "wildcards")) {
346        g_loglevel = 10;
347        g_text_mode = TRUE;
348        setup_newt_stuff();
349        turn_wildcard_chars_into_literal_chars(tmp, argv[2]);
350        printf("in=%s; out=%s\n", argv[2], tmp);
351        finish(1);
352    }
353
354    if (argc == 4 && !strcmp(argv[1], "getfacl")) {
355        g_loglevel = 10;
356        g_text_mode = TRUE;
357        setup_newt_stuff();
358        if (!strstr(argv[2], "filelist")) {
359            printf("Sorry - filelist goes first\n");
360            finish(1);
361        } else {
362            finish(get_acl_list(argv[2], argv[3]));
363        }
364        finish(0);
365    }
366    if (argc == 4 && !strcmp(argv[1], "setfacl")) {
367        g_loglevel = 10;
368//      chdir("/tmp");
369        g_text_mode = TRUE;
370        setup_newt_stuff();
371        finish(set_acl_list(argv[2], argv[3]));
372    }
373
374    if (argc > 2 && !strcmp(argv[1], "find-cd")) {
375        g_loglevel = 10;
376        g_text_mode = TRUE;
377        setup_newt_stuff();
378        if (find_cdrw_device(tmp)) {
379            printf("Failed to find CDR-RW drive\n");
380        } else {
381            printf("CD-RW is at %s\n", tmp);
382        }
383        tmp[0] = '\0';
384        if (find_cdrom_device(tmp, atoi(argv[2]))) {
385            printf("Failed to find CD-ROM drive\n");
386        } else {
387            printf("CD-ROM is at %s\n", tmp);
388        }
389        finish(0);
390    }
391
392    if (argc > 2 && !strcmp(argv[1], "find-dvd")) {
393        g_loglevel = 10;
394        g_text_mode = TRUE;
395        setup_newt_stuff();
396        if (find_dvd_device(tmp, atoi(argv[2]))) {
397            printf("Failed to find DVD drive\n");
398        } else {
399            printf("DVD is at %s\n", tmp);
400        }
401        finish(0);
402    }
403
404    if (argc > 2 && !strcmp(argv[1], "disksize")) {
405        printf("%s --> %ld\n", argv[2], get_phys_size_of_drive(argv[2]));
406        finish(0);
407    }
408    if (argc > 2 && !strcmp(argv[1], "test-dev")) {
409        if (is_dev_an_NTFS_dev(argv[2])) {
410            printf("%s is indeed an NTFS dev\n", argv[2]);
411        } else {
412            printf("%s is _not_ an NTFS dev\n", argv[2]);
413        }
414        finish(0);
415    }
416
417    if (pre_param_configuration(bkpinfo)) {
418        fatal_error
419            ("Pre-param initialization phase failed. Please review the error messages above, make the specified changes, then try again. Exiting...");
420    }
421
422/* Process command line, if there is one. If not, ask user for info. */
423    if (argc == 1) {
424        g_text_mode = FALSE;
425        setup_newt_stuff();
426        res = interactively_obtain_media_parameters_from_user(bkpinfo, TRUE);   /* yes, archiving */
427        if (res) {
428            fatal_error
429                ("Syntax error. Please review the parameters you have supplied and try again.");
430        }
431    } else {
432        res = handle_incoming_parameters(argc, argv, bkpinfo);
433        if (res) {
434            printf
435                ("Errors were detected in the command line you supplied.\n");
436            printf("Please review the log file - " MONDO_LOGFILE "\n");
437            log_msg(1, "Mondoarchive will now exit.");
438            finish(1);
439        }
440        setup_newt_stuff();
441    }
442
443/* Finish configuring global structures */
444    if (post_param_configuration(bkpinfo)) {
445        fatal_error
446            ("Post-param initialization phase failed. Perhaps bad parameters were supplied to mondoarchive? Please review the documentation, error messages and logs. Exiting...");
447    }
448
449    log_to_screen
450        ("BusyBox's sources are available from http://www.busybox.net");
451    sprintf(g_erase_tmpdir_and_scratchdir, "rm -Rf %s %s", bkpinfo->tmpdir,
452            bkpinfo->scratchdir);
453
454    /* If we're meant to backup then backup */
455    if (bkpinfo->backup_data) {
456/*
457      log_to_screen("INFERNAL PORPOISES");
458      res = archive_this_fileset_with_star(bkpinfo, "/tmp/filelist.0", "/tmp/0.star.bz2", 0);
459      log_to_screen("atfws returned %d", res);
460      finish(0);
461*/
462        res = backup_data(bkpinfo);
463        retval += res;
464        if (res) {
465            strcat(say_at_end,
466                   "Data archived. Please check the logs, just as a precaution. ");
467        } else {
468            strcat(say_at_end, "Data archived OK. ");
469        }
470    }
471
472/* If we're meant to verify then verify */
473    if (bkpinfo->verify_data) {
474        res = verify_data(bkpinfo);
475        if (res < 0) {
476            sprintf(tmp, "%d difference%c found.", -res,
477                    (-res != 1) ? 's' : ' ');
478            strcat(say_at_end, tmp);
479            log_to_screen(tmp);
480            res = 0;
481        }
482        retval += res;
483    }
484
485/* Offer to write floppy disk images to physical disks */
486    if (bkpinfo->backup_data && !g_skip_floppies) {
487        res = offer_to_write_boot_floppies_to_physical_disks(bkpinfo);
488        retval += res;
489//      res = offer_to_write_boot_ISO_to_physical_CD(bkpinfo);
490//      retval += res;
491    }
492
493/* Report result of entire operation (success? errors?) */
494    if (!retval) {
495        mvaddstr_and_log_it(g_currentY++, 0,
496                            "Backup and/or verify ran to completion. Everything appears to be fine.");
497    } else {
498        mvaddstr_and_log_it(g_currentY++, 0,
499                            "Backup and/or verify ran to completion. However, errors did occur.");
500    }
501
502    if (does_file_exist("/root/images/mindi/mondorescue.iso")) {
503        log_to_screen
504            ("/root/images/mindi/mondorescue.iso, a boot/utility CD, is available if you want it.");
505    }
506
507
508    if (length_of_file("/tmp/changed.files") > 2) {
509        if (g_text_mode) {
510            log_to_screen
511                ("Type 'less /tmp/changed.files' to see which files don't match the archives");
512        } else {
513            log_msg(1,
514                    "Type 'less /tmp/changed.files' to see which files don't match the archives");
515            log_msg(2, "Calling popup_changelist_from_file()");
516            popup_changelist_from_file("/tmp/changed.files");
517            log_msg(2, "Returned from popup_changelist_from_file()");
518        }
519    } else {
520        unlink("/tmp/changed.files");
521    }
522    log_to_screen(say_at_end);
523    sprintf(tmp, "umount %s/tmpfs", bkpinfo->tmpdir);
524    run_program_and_log_output(tmp, TRUE);
525    run_program_and_log_output(g_erase_tmpdir_and_scratchdir, TRUE);
526
527    run_program_and_log_output("mount", 2);
528
529    if (bkpinfo->please_dont_eject) {
530        log_msg(5, "Not ejecting at end. Fair enough.");
531    } else {
532        log_msg(5, "Ejecting at end.");
533        if (!find_cdrom_device(tmp, FALSE) || !find_dvd_device(tmp, FALSE)) {
534            log_msg(1, "Ejecting %s", tmp);
535            eject_device(tmp);
536        }
537    }
538
539    system("rm -f /var/cache/mondo-archive/last-backup.aborted");
540    system("rm -Rf /tmp.mondo.* /mondo.scratch.*");
541    if (!retval) {
542        printf("Mondoarchive ran OK.\n");
543    } else {
544        printf("Errors occurred during backup. Please check logfile.\n");
545    }
546    distro_specific_kludges_at_end_of_mondoarchive();
547    register_pid(0, "mondo");
548    set_signals(FALSE);
549    chdir("/tmp");              // just in case there's something wrong with g_erase_tmpdir_and_scratchdir
550    system(g_erase_tmpdir_and_scratchdir);
551    free_libmondo_global_strings();
552    paranoid_free(say_at_end);
553    paranoid_free(tmp);
554    paranoid_free(bkpinfo);
555
556    unlink("/tmp/filelist.full");
557    unlink("/tmp/filelist.full.gz");
558
559    if (!g_cdrom_drive_is_here) {
560        log_msg(10, "FYI, g_cdrom_drive_is_here was never used");
561    }
562    if (!g_dvd_drive_is_here) {
563        log_msg(10, "FYI, g_dvd_drive_is_here was never used");
564    }
565
566    if (!g_text_mode) {
567        popup_and_OK
568            ("Mondo Archive has finished its run. Please press ENTER to return to the shell prompt.");
569        log_to_screen("See %s for details of backup run.", MONDO_LOGFILE);
570        finish(retval);
571    } else {
572        printf("See %s for details of backup run.\n", MONDO_LOGFILE);
573        exit(retval);
574    }
575
576    return EXIT_SUCCESS;
577}
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