source: branches/stable/mondo/mondo/common/libmondo-tools.c @ 558

Last change on this file since 558 was 558, checked in by bcornec, 13 years ago

Andree Leidenfrost adds mdadm/dm support. Hurray !
Of course I omit to mentioned that the previous patch was already his work. (mr_strtok)

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1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 558 2006-05-20 14:54:20Z bcornec $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36  /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44  is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66  a tape device AND it's already populated by /dev/{something}
67  ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71  and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87   
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116  to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143  to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152  it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154  whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156  from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160  then create a softlink from the former to the latter, to work
161  around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <netinet/in.h>
185#include <arpa/inet.h>
186
187/*@unused@*/
188//static char cvsid[] = "$Id: libmondo-tools.c 558 2006-05-20 14:54:20Z bcornec $";
189
190extern int g_tape_buffer_size_MB;
191extern char *g_erase_tmpdir_and_scratchdir;
192extern char *g_serial_string;
193extern bool g_text_mode;
194extern int g_currentY;
195extern int g_current_media_number;
196
197/**
198 * @addtogroup globalGroup
199 * @{
200 */
201bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
202 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
203bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
204double g_kernel_version;
205
206/**
207 * The place where /boot is mounted.
208 */
209char *g_boot_mountpt = NULL;
210
211/**
212 * The location of Mondo's home directory.
213 */
214char *g_mondo_home = NULL;
215
216/**
217 * The serial string (used to differentiate between backups) of the current backup.
218 */
219char *g_serial_string = NULL;
220
221/**
222 * The location where tmpfs is mounted, or "" if it's not mounted.
223 */
224char *g_tmpfs_mountpt = NULL;
225char *g_magicdev_command = NULL;
226
227/**
228 * The default maximum level to log messages at or below.
229 */
230int g_loglevel = DEFAULT_DEBUG_LEVEL;
231
232/* @} - end of globalGroup */
233
234
235extern pid_t g_buffer_pid;
236extern pid_t g_main_pid;
237
238extern t_bkptype g_backup_media_type;
239
240extern bool am_I_in_disaster_recovery_mode(void);
241
242
243/**
244 * @addtogroup utilityGroup
245 * @{
246 */
247/**
248 * Assertion handler. Prints a friendly message to the user,
249 * offering to ignore all, dump core, break to debugger,
250 * exit, or ignore. Intended to be used with an assert() macro.
251 *
252 * @param file The file in which the assertion triggered.
253 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
254 * @param line The line number of the assert() statement.
255 * @param exp The expression that failed (as a string).
256 */
257void _mondo_assert_fail(const char *file,
258                        const char *function, int line, const char *exp)
259{
260    static int ignoring_assertions = 0;
261    bool is_valid = TRUE;
262
263    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
264           function);
265    if (ignoring_assertions) {
266        log_it("Well, the user doesn't care...");
267        return;
268    }
269#ifndef _XWIN
270    if (!g_text_mode)
271        newtSuspend();
272#endif
273    printf("ASSERTION FAILED: `%s'\n", exp);
274    printf("\tat %s:%d in %s\n\n", file, line, function);
275    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
276    do {
277        is_valid = TRUE;
278        switch (toupper(getchar())) {
279        case 'A':               // ignore (A)ll
280            ignoring_assertions = 1;
281            break;
282        case 'B':               // a(B)ort
283            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
284            raise(SIGABRT);
285            break;              /* "can't get here" */
286        case 'D':               // (D)ebug, aka asm("int 3")
287#ifdef __IA32__
288            __asm__ __volatile__("int $3"); // break to debugger
289#endif
290            break;
291        case 'E':               // (E)xit
292            fatal_error("Failed assertion -- see above for details");
293            break;              /* "can't get here" */
294        case 'I':               // (I)gnore
295            break;
296            /* These next two work as follows:
297               the `default' catches the user's invalid choice and says so;
298               the '\n' catches the newline on the end and prints the prompt again.
299             */
300        case '\n':
301            printf
302                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
303            break;
304        default:
305            is_valid = FALSE;
306            printf("Invalid choice.\n");
307            break;
308        }
309    } while (!is_valid);
310
311    if (ignoring_assertions) {
312        log_it("Ignoring ALL assertions from now on.");
313    } else {
314        log_it("Ignoring assertion: %s", exp);
315    }
316
317    getchar();                  // skip \n
318
319#ifndef _XWIN
320    if (!g_text_mode)
321        newtResume();
322#endif
323}
324
325/**
326 * Clean's up users' KDE desktops.
327 * @bug Details about this function are unknown.
328 */
329void clean_up_KDE_desktop_if_necessary(void)
330{
331    char *tmp;
332
333    malloc_string(tmp);
334    strcpy(tmp,
335           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
336file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
337awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
338else { print $0;};}' $file.old  > $file ; fi ; done");
339    run_program_and_log_output(tmp, 5);
340    paranoid_free(tmp);
341}
342
343
344/**
345 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
346 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
347 *
348 * @param home_sz String to store the home directory ("" if it could not be found).
349 * @return 0 for success, nonzero for failure.
350 */
351int find_and_store_mondoarchives_home(char *home_sz)
352{
353    assert(home_sz != NULL);
354    strcpy(home_sz, MONDO_SHARE);
355    return (0);
356}
357
358
359char *get_architecture()
360{
361#ifdef __IA32__
362    return ("i386");
363#endif
364#ifdef __IA64__
365    return ("ia64");
366#endif
367    return ("unknown");
368}
369
370
371
372double get_kernel_version()
373{
374    char *p, tmp[200];
375    double d;
376#ifdef __FreeBSD__
377    // JOSH - FIXME :)
378    d = 5.2;                    // :-)
379#else
380    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
381    p = strchr(tmp, '.');
382    if (p) {
383        p = strchr(++p, '.');
384        if (p) {
385            while (*p) {
386                *p = *(p + 1);
387                p++;
388            }
389        }
390    }
391//  log_msg(1, "tmp = '%s'", tmp);
392    d = atof(tmp);
393#endif
394    log_msg(1, "g_kernel_version = %f", d);
395    return (d);
396}
397
398
399
400
401
402/**
403 * Get the current time.
404 * @return number of seconds since the epoch.
405 */
406long get_time()
407{
408    return (long) time((void *) 0);
409}
410
411
412
413
414
415
416
417/**
418 * Initialize a RAID volume structure, setting fields to zero. The
419 * actual hard drive is unaffected.
420 *
421 * @param raidrec The RAID volume structure to initialize.
422 * @note This function is system dependent.
423 */
424#ifdef __FreeBSD__
425void initialize_raidrec(struct vinum_volume *raidrec)
426{
427    int i, j;
428    raidrec->volname[0] = '\0';
429    raidrec->plexes = 0;
430    for (i = 0; i < 9; ++i) {
431        raidrec->plex[i].raidlevel = -1;
432        raidrec->plex[i].stripesize = 0;
433        raidrec->plex[i].subdisks = 0;
434        for (j = 0; j < 9; ++j) {
435            strcpy(raidrec->plex[i].sd[j].which_device, "");
436        }
437    }
438}
439#else
440void initialize_raidrec(struct raid_device_record *raidrec)
441{
442    assert(raidrec != NULL);
443    raidrec->raid_device[0] = '\0';
444    raidrec->raid_level = -9;
445    raidrec->persistent_superblock = 1;
446    raidrec->chunk_size = 64;
447    raidrec->parity = -1;
448    raidrec->data_disks.entries = 0;
449    raidrec->spare_disks.entries = 0;
450    raidrec->parity_disks.entries = 0;
451    raidrec->failed_disks.entries = 0;
452    raidrec->additional_vars.entries = 0;
453}
454#endif
455
456
457
458
459/**
460 * Insert modules that Mondo requires.
461 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
462 * @c msdosfs and @c ext2fs for FreeBSD.
463 */
464void insmod_crucial_modules(void)
465{
466#ifdef __FreeBSD__
467    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
468    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
469#else
470    system("modprobe dos &> /dev/null");
471    system("modprobe fat &> /dev/null");
472    system("modprobe vfat &> /dev/null");
473    //  system("modprobe osst &> /dev/null");
474#endif
475}
476
477
478/**
479 * Log a trace message to the trace file.
480 * @bug This function seems orphaned. Please remove.
481 */
482void log_trace(char *o)
483{
484    /*@ pointers **************************************************** */
485    FILE *fout;
486
487    /*@ buffers ***************************************************** */
488    char output[MAX_STR_LEN];
489
490    /*@ int    ****************************************************** */
491    int i;
492
493    /*@ end vars *************************************************** */
494
495    if (o[0] == '\0') {
496        return;
497    }
498    strcpy(output, o);
499    i = (int) strlen(output);
500    if (i <= 0) {
501        return;
502    }
503    if (output[i - 1] < 32) {
504        output[i - 1] = '\0';
505    }
506    if (g_text_mode
507        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
508        printf("%s\n", output);
509    }
510
511    fout = fopen(MONDO_TRACEFILE, "a");
512    if (fout) {
513        fprintf(fout, "%s\n", output);
514        paranoid_fclose(fout);
515    } else {
516        log_OS_error("Cannot write to tracefile");
517    }
518}
519
520
521
522
523
524/**
525 * Finish configuring the backup information structure. Call this function
526 * to set the parameters that depend on those that can be given on the command
527 * line.
528 *
529 * @param bkpinfo The backup information structure. Fields modified/used:
530 * - Used: @c bkpinfo->backup_data
531 * - Used: @c bkpinfo->backup_media_type
532 * - Used: @c bkpinfo->cdrw_speed
533 * - Used: @c bkpinfo->compression_level
534 * - Used: @c bkpinfo->include_paths
535 * - Used: @c bkpinfo->prefix
536 * - Used: @c bkpinfo->isodir
537 * - Used: @c bkpinfo->manual_cd_tray
538 * - Used: @c bkpinfo->make_cd_use_lilo
539 * - Used: @c bkpinfo->media_device
540 * - Used: @c bkpinfo->nfs_mount
541 * - Used: @c bkpinfo->nonbootable_backup
542 * - Used: @c bkpinfo->scratchdir
543 * - Used: @c bkpinfo->tmpdir
544 * - Used: @c bkpinfo->use_lzo
545 * - Modified: @c bkpinfo->call_before_iso
546 * - Modified: @c bkpinfo->call_make_iso
547 * - Modified: @c bkpinfo->optimal_set_size
548 * - Modified: @c bkpinfo->zip_exe
549 * - Modified: @c bkpinfo->zip_suffix
550 *
551 * @return number of errors, or 0 for success.
552 * @note Also creates directories that are specified in the @c bkpinfo structure but
553 * do not exist.
554 */
555int post_param_configuration(struct s_bkpinfo *bkpinfo)
556{
557    char *extra_cdrom_params;
558    char *mondo_mkisofs_sz;
559    char *command;
560    char *mtpt;
561    char *hostname, *ip_address;
562    int retval = 0;
563    long avm = 0;
564    char *colon;
565    char *cdr_exe;
566    char *tmp;
567    char call_before_iso_user[MAX_STR_LEN] = "\0";
568    int rdsiz_MB;
569    char *iso_dev;
570    char *iso_mnt;
571    char *iso_tmp;
572    char *iso_path;
573
574    assert(bkpinfo != NULL);
575    malloc_string(extra_cdrom_params);
576    malloc_string(mondo_mkisofs_sz);
577    malloc_string(command);
578    malloc_string(mtpt);
579    malloc_string(hostname);
580    malloc_string(ip_address);
581    malloc_string(cdr_exe);
582    malloc_string(tmp);
583    malloc_string(iso_dev);
584    malloc_string(iso_mnt);
585    malloc_string(iso_tmp);
586    malloc_string(iso_path);
587    bkpinfo->optimal_set_size =
588        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 4 : 8) *
589        1024;
590
591    log_msg(1, "Foo");
592    if (bkpinfo->backup_media_type == tape) {
593        log_msg(1, "Bar");
594        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
595        log_msg(1, "tmp = '%s'", tmp);
596        if (run_program_and_log_output(tmp, 3)) {
597            fatal_error
598                ("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.");
599        }
600    }
601    make_hole_for_dir(bkpinfo->scratchdir);
602    make_hole_for_dir(bkpinfo->tmpdir);
603    if (bkpinfo->backup_media_type == iso)
604        make_hole_for_dir(bkpinfo->isodir);
605
606    run_program_and_log_output("uname -a", 5);
607    run_program_and_log_output("cat /etc/*issue*", 5);
608    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
609    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
610    paranoid_system(command);
611    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
612#ifdef __FreeBSD__
613    strcpy(tmp,
614           call_program_and_get_last_line_of_output
615           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
616    avm += atol(tmp);
617    strcpy(tmp,
618           call_program_and_get_last_line_of_output
619           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
620    avm += atol(tmp);
621    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
622            g_tmpfs_mountpt);
623#else
624    strcpy(tmp,
625           call_program_and_get_last_line_of_output
626           ("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1"));
627    avm += atol(tmp);
628    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
629            g_tmpfs_mountpt, rdsiz_MB, 'm');
630    run_program_and_log_output("cat /proc/cpuinfo", 5);
631    run_program_and_log_output
632        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
633         5);
634#endif
635    if (avm / 1024 > rdsiz_MB * 3) {
636        if (run_program_and_log_output(command, 5)) {
637            g_tmpfs_mountpt[0] = '\0';
638            log_it("Failed to mount tmpfs");
639        } else {
640            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
641        }
642    } else {
643        g_tmpfs_mountpt[0] = '\0';
644        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
645    }
646
647    if (bkpinfo->use_lzo) {
648        strcpy(bkpinfo->zip_exe, "lzop");
649        strcpy(bkpinfo->zip_suffix, "lzo");
650    } else if (bkpinfo->compression_level != 0) {
651        strcpy(bkpinfo->zip_exe, "bzip2");
652        strcpy(bkpinfo->zip_suffix, "bz2");
653    } else {
654        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
655    }
656
657// DVD
658
659    if (bkpinfo->backup_media_type == dvd) {
660        extra_cdrom_params[0] = '\0';
661        mondo_mkisofs_sz[0] = '\0';
662        if (find_home_of_exe("growisofs")) {
663            strcpy(cdr_exe, "growisofs");
664        }                       // unlikely to be used
665        else {
666            fatal_error("Please install growisofs.");
667        }
668        if (bkpinfo->nonbootable_backup) {
669            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
670        } else if
671#ifdef __FreeBSD__
672            (TRUE)
673#else
674            (bkpinfo->make_cd_use_lilo)
675#endif
676#ifdef __IA64__
677    {
678        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
679    }
680#else
681    {
682        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
683    }
684#endif
685        else
686        {
687            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
688        }
689        if (bkpinfo->manual_cd_tray) {
690            fatal_error("Manual CD tray + DVD not supported yet.");
691            // -m isn't supported by growisofs, BTW...
692        } else {
693            sprintf(bkpinfo->call_make_iso,
694                    "%s %s -Z %s . 2>> _ERR_",
695                    mondo_mkisofs_sz,
696                    extra_cdrom_params, bkpinfo->media_device);
697        }
698        if (getenv ("SUDO_COMMAND")) {
699            fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
700        }
701        log_msg(2, "call_make_iso (DVD res) is ... %s",
702                bkpinfo->call_make_iso);
703    }                           // end of DVD code
704
705// CD-R or CD-RW
706    if (bkpinfo->backup_media_type == cdrw
707        || bkpinfo->backup_media_type == cdr) {
708        extra_cdrom_params[0] = '\0';
709        if (!bkpinfo->manual_cd_tray) {
710            strcat(extra_cdrom_params, "-waiti ");
711        }
712        if (bkpinfo->backup_media_type == cdrw) {
713            strcat(extra_cdrom_params, "blank=fast ");
714        }
715        if (find_home_of_exe("cdrecord")) {
716            strcpy(cdr_exe, "cdrecord");
717        } else if (find_home_of_exe("dvdrecord")) {
718            strcpy(cdr_exe, "dvdrecord");
719        } else {
720            fatal_error("Please install either cdrecord or dvdrecord.");
721        }
722        if (bkpinfo->nonbootable_backup) {
723            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
724        } else if
725#ifdef __FreeBSD__
726            (TRUE)
727#else
728            (bkpinfo->make_cd_use_lilo)
729#endif
730#ifdef __IA64__
731    {
732        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
733    }
734#else
735    {
736        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
737    }
738#endif
739        else
740        {
741            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
742        }
743        if (bkpinfo->manual_cd_tray) {
744            if (bkpinfo->call_before_iso[0] == '\0') {
745            sprintf(bkpinfo->call_before_iso,
746                        "%s -o %s/temporary.iso . 2>> _ERR_",
747                        mondo_mkisofs_sz, bkpinfo->tmpdir);
748                } else {
749                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
750                sprintf (bkpinfo->call_before_iso,
751                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
752                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
753            }
754            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
755            sprintf(bkpinfo->call_make_iso,
756                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
757                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
758                    extra_cdrom_params, bkpinfo->media_device,
759                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
760        } else {
761            sprintf(bkpinfo->call_make_iso,
762                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
763                    mondo_mkisofs_sz, cdr_exe,
764                    (bkpinfo->please_dont_eject) ? " " : "-eject",
765                    extra_cdrom_params, bkpinfo->media_device,
766                    bkpinfo->cdrw_speed);
767        }
768    }                           // end of CD code
769
770    /*
771       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
772       {
773       sprintf (tmp,
774       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
775       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
776       if (system(tmp))
777       {
778       retval++;
779       fprintf (stderr,
780       "Cannot write to tape device. Is the tape set read-only?\n");
781       }
782       } // end of tape code
783     */
784
785
786    if (bkpinfo->backup_media_type == iso) {
787
788/* Patch by Conor Daly <conor.daly@met.ie>
789 * 23-june-2004
790 * Break up isodir into iso_mnt and iso_path
791 * These will be used along with iso-dev at restore time
792 * to locate the ISOs where ever they're mounted
793 */
794
795        log_it("isodir = %s", bkpinfo->isodir);
796        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
797                bkpinfo->isodir);
798        log_it("command = %s", command);
799        log_it("res of it = %s",
800               call_program_and_get_last_line_of_output(command));
801        sprintf(iso_dev, "%s",
802                call_program_and_get_last_line_of_output(command));
803        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
804        write_one_liner_data_file(tmp,
805                                  call_program_and_get_last_line_of_output
806                                  (command));
807
808        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
809                iso_dev);
810        log_it("command = %s", command);
811        log_it("res of it = %s",
812               call_program_and_get_last_line_of_output(command));
813        sprintf(iso_mnt, "%s",
814                call_program_and_get_last_line_of_output(command));
815        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
816        write_one_liner_data_file(tmp,
817                                  call_program_and_get_last_line_of_output
818                                  (command));
819        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
820        sprintf(iso_tmp, "%s", bkpinfo->isodir);
821        if (strlen(iso_tmp) < strlen(iso_mnt)) {
822            iso_path[0] = '\0';
823        } else {
824            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
825        }
826        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
827        write_one_liner_data_file(tmp, iso_path);
828        log_it("isodir: %s", iso_path);
829        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
830        write_one_liner_data_file(tmp, bkpinfo->prefix);
831        log_it("iso-prefix: %s",  bkpinfo->prefix);
832
833/* End patch */
834    }                           // end of iso code
835
836    if (bkpinfo->backup_media_type == nfs) {
837        strcpy(hostname, bkpinfo->nfs_mount);
838        colon = strchr(hostname, ':');
839        if (!colon) {
840            log_it("nfs mount doesn't have a colon in it");
841            retval++;
842        } else {
843            struct hostent *hent;
844
845            *colon = '\0';
846            hent = gethostbyname(hostname);
847            if (!hent) {
848                log_it("Can't resolve NFS mount (%s): %s", hostname,
849                       hstrerror(h_errno));
850                retval++;
851            } else {
852                strcpy(ip_address, inet_ntoa
853                       ((struct in_addr)
854                        *((struct in_addr *) hent->h_addr)));
855                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
856                strcpy(bkpinfo->nfs_mount, ip_address);
857            }
858        }
859        store_nfs_config(bkpinfo);
860    }
861
862    log_it("Finished processing incoming params");
863    if (retval) {
864        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
865    }
866    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
867    if (does_file_exist(tmp)) {
868        unlink(tmp);
869    }
870    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
871        log_it("tmpdir or scratchdir are blank/missing");
872        retval++;
873    }
874    if (bkpinfo->include_paths[0] == '\0') {
875        //      fatal_error ("Why no backup path?");
876        strcpy(bkpinfo->include_paths, "/");
877    }
878    chmod(bkpinfo->scratchdir, 0700);
879    chmod(bkpinfo->tmpdir, 0700);
880    g_backup_media_type = bkpinfo->backup_media_type;
881    paranoid_free(mtpt);
882    paranoid_free(extra_cdrom_params);
883    paranoid_free(mondo_mkisofs_sz);
884    paranoid_free(command);
885    paranoid_free(hostname);
886    paranoid_free(ip_address);
887    paranoid_free(cdr_exe);
888    paranoid_free(tmp);
889    paranoid_free(iso_dev);
890    paranoid_free(iso_mnt);
891    paranoid_free(iso_tmp);
892    paranoid_free(iso_path);
893    return (retval);
894}
895
896
897
898/**
899 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
900 * Seeds the random-number generator, loads important modules, checks the sanity
901 * of the user's Linux distribution, and deletes logfile.
902 * @param bkpinfo The backup information structure. Will be initialized.
903 * @return number of errors (0 for success)
904 */
905int pre_param_configuration(struct s_bkpinfo *bkpinfo)
906{
907    int res = 0;
908
909    make_hole_for_dir(MNT_CDROM);
910    assert(bkpinfo != NULL);
911    srandom((unsigned long) (time(NULL)));
912    insmod_crucial_modules();
913    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
914    if (bkpinfo->disaster_recovery) {
915        if (!does_nonMS_partition_exist()) {
916            fatal_error
917                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
918        }
919    }
920
921    unlink(MONDO_TRACEFILE);
922    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
923    if (find_and_store_mondoarchives_home(g_mondo_home)) {
924        fprintf(stderr,
925                "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");
926        res++;
927        return (res);
928    }
929    res += some_basic_system_sanity_checks();
930    if (res) {
931        log_it("Your distribution did not pass Mondo's sanity test.");
932    }
933    g_current_media_number = 1;
934    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
935    return (res);
936}
937
938
939
940
941/**
942 * Reset all fields of the backup information structure to a sensible default.
943 * @param bkpinfo The @c bkpinfo to reset.
944 */
945void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
946{
947    int i;
948
949    log_msg(1, "Hi");
950    assert(bkpinfo != NULL);
951    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
952    bkpinfo->manual_cd_tray = FALSE;
953    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
954    bkpinfo->media_device[0] = '\0';
955    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
956        bkpinfo->media_size[i] = -1;
957    }
958    bkpinfo->boot_loader = '\0';
959    bkpinfo->boot_device[0] = '\0';
960    bkpinfo->zip_exe[0] = '\0';
961    bkpinfo->zip_suffix[0] = '\0';
962    bkpinfo->restore_path[0] = '\0';
963    bkpinfo->use_lzo = FALSE;
964    bkpinfo->do_not_compress_these[0] = '\0';
965    bkpinfo->verify_data = FALSE;
966    bkpinfo->backup_data = FALSE;
967    bkpinfo->restore_data = FALSE;
968    bkpinfo->disaster_recovery =
969        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
970    if (bkpinfo->disaster_recovery) {
971        strcpy(bkpinfo->isodir, "/");
972    } else {
973        strcpy(bkpinfo->isodir, "/root/images/mondo");
974    }
975    strcpy(bkpinfo->prefix, STD_PREFIX);
976
977    bkpinfo->scratchdir[0] = '\0';
978    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
979    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
980    bkpinfo->optimal_set_size = 0;
981    bkpinfo->backup_media_type = none;
982    strcpy(bkpinfo->include_paths, "/");
983    bkpinfo->exclude_paths[0] = '\0';
984    bkpinfo->call_before_iso[0] = '\0';
985    bkpinfo->call_make_iso[0] = '\0';
986    bkpinfo->call_burn_iso[0] = '\0';
987    bkpinfo->call_after_iso[0] = '\0';
988    bkpinfo->image_devs[0] = '\0';
989    bkpinfo->postnuke_tarball[0] = '\0';
990    bkpinfo->kernel_path[0] = '\0';
991    bkpinfo->nfs_mount[0] = '\0';
992    bkpinfo->nfs_remote_dir[0] = '\0';
993    bkpinfo->wipe_media_first = FALSE;
994    bkpinfo->differential = FALSE;
995    bkpinfo->cdrw_speed = 0;
996// patch by Herman Kuster 
997    bkpinfo->differential = 0;
998// patch end
999    bkpinfo->compression_level = 3;
1000}
1001
1002
1003
1004
1005/**
1006 * Get the remaining free space (in MB) on @p partition.
1007 * @param partition The partition to check free space on (either a device or a mountpoint).
1008 * @return The free space on @p partition, in MB.
1009 */
1010long free_space_on_given_partition(char *partition)
1011{
1012    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1013    long res;
1014
1015    assert_string_is_neither_NULL_nor_zerolength(partition);
1016
1017    sprintf(command, "df -m -P %s &> /dev/null", partition);
1018    if (system(command)) {
1019        return (-1);
1020    }                           // partition does not exist
1021    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1022            partition);
1023    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1024    if (strlen(out_sz) == 0) {
1025        return (-1);
1026    }                           // error within df, probably
1027    res = atol(out_sz);
1028    return (res);
1029}
1030
1031
1032
1033/**
1034 * Check the user's system for sanity. Checks performed:
1035 * - make sure user has enough RAM (32mb required, 64mb recommended)
1036 * - make sure user has enough free space in @c /
1037 * - check kernel for ramdisk support
1038 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1039 * - make sure CD-ROM is unmounted
1040 * - make sure /etc/modules.conf exists
1041 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1042 *
1043 * @return number of problems with the user's setup (0 for success)
1044 */
1045int some_basic_system_sanity_checks()
1046{
1047
1048    /*@ buffers ************ */
1049    char tmp[MAX_STR_LEN];
1050    //  char command[MAX_STR_LEN];
1051
1052    /*@ int's *************** */
1053    int retval = 0;
1054    long Lres;
1055
1056
1057    mvaddstr_and_log_it(g_currentY, 0,
1058                        "Checking sanity of your Linux distribution");
1059#ifndef __FreeBSD__
1060    if (system("which mkfs.vfat &> /dev/null")
1061        && !system("which mkfs.msdos &> /dev/null")) {
1062        log_it
1063            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1064        run_program_and_log_output
1065            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1066    }
1067    strcpy(tmp,
1068           call_program_and_get_last_line_of_output
1069           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1070    if (atol(tmp) < 35000) {
1071        retval++;
1072        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1073    }
1074    if (atol(tmp) < 66000) {
1075        log_to_screen
1076            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1077    }
1078#endif
1079
1080    if ((Lres = free_space_on_given_partition("/root")) == -1) {
1081        Lres = free_space_on_given_partition("/");
1082    }
1083    log_it("Free space on given partition = %ld MB", Lres);
1084
1085    if (Lres < 50) {
1086        run_program_and_log_output
1087            ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
1088             3);
1089        //      fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1090    }
1091
1092    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1093        retval++;
1094        log_to_screen
1095            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1096        fatal_error
1097            ("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. :)");
1098    }
1099#ifndef __FreeBSD__
1100    if (run_program_and_log_output
1101        ("grep ramdisk /proc/devices", FALSE)) {
1102        if (!ask_me_yes_or_no
1103            ("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?"))
1104        {
1105            //          retval++;
1106            log_to_screen
1107                ("It looks as if your kernel lacks ramdisk and initrd support.");
1108            log_to_screen
1109                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1110        }
1111    }
1112#endif
1113    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1114    retval += whine_if_not_found("mkisofs");
1115    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1116        retval += whine_if_not_found("cdrecord");
1117    }
1118    retval += whine_if_not_found("bzip2");
1119    retval += whine_if_not_found("awk");
1120    retval += whine_if_not_found("md5sum");
1121    retval += whine_if_not_found("strings");
1122    retval += whine_if_not_found("mindi");
1123    retval += whine_if_not_found("buffer");
1124
1125    // abort if Windows partition but no ms-sys and parted
1126    if (!run_program_and_log_output
1127        ("mount | grep -w vfat | grep -v /dev/fd | grep -v nexdisk", 0)
1128        ||
1129        !run_program_and_log_output
1130        ("mount | grep -w dos | grep -v /dev/fd | grep -v nexdisk", 0)) {
1131        log_to_screen("I think you have a Windows 9x partition.");
1132        retval += whine_if_not_found("parted");
1133#ifndef __IA64__
1134        /* IA64 always has one vfat partition for EFI even without Windows */
1135        // retval +=
1136        if (!find_home_of_exe("ms-sys")) {
1137            log_to_screen("Please install ms-sys just in case.");
1138        }
1139#endif
1140    }
1141
1142    if (!find_home_of_exe("cmp")) {
1143        if (!find_home_of_exe("true")) {
1144            whine_if_not_found("cmp");
1145        } else {
1146            log_to_screen
1147                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1148            if (run_program_and_log_output
1149                ("cp -f `which true` /usr/bin/cmp", 0)) {
1150                fatal_error("Failed to create dummy 'cmp' file.");
1151            }
1152        }
1153    }
1154    run_program_and_log_output
1155        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1156    strcpy(tmp,
1157           call_program_and_get_last_line_of_output
1158           ("mount | grep -E \"cdr(om|w)\""));
1159    if (strcmp("", tmp)) {
1160        if (strstr(tmp, "autofs")) {
1161            log_to_screen
1162                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1163            log_to_screen
1164                ("if a CD actually is inserted. If a CD is inserted, please");
1165            log_to_screen("eject it. Thank you.");
1166            log_it
1167                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1168        } else
1169            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1170            retval++;
1171            fatal_error
1172                ("Your CD-ROM drive is mounted. Please unmount it.");
1173        }
1174    }
1175#ifndef __FreeBSD__
1176    if (!does_file_exist("/etc/modules.conf")) {
1177        if (does_file_exist("/etc/conf.modules")) {
1178            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1179            run_program_and_log_output
1180                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1181        } else if (does_file_exist("/etc/modprobe.d")) {
1182            log_it
1183                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1184        } else if (does_file_exist("/etc/modprobe.conf")) {
1185            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1186            run_program_and_log_output
1187                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1188        } else {
1189            retval++;
1190            log_to_screen
1191                ("Please find out what happened to /etc/modules.conf");
1192        }
1193    }
1194#endif
1195
1196    run_program_and_log_output("cat /etc/fstab", 5);
1197#ifdef __FreeBSD__
1198    run_program_and_log_output("vinum printconfig", 5);
1199#else
1200    run_program_and_log_output("cat /etc/raidtab", 5);
1201#endif
1202
1203    if (run_program_and_log_output("mindi -V", 1)) {
1204        log_to_screen("Could not ascertain mindi's version number.");
1205        log_to_screen
1206            ("You have not installed Mondo and/or Mindi properly.");
1207        log_to_screen("Please uninstall and reinstall them both.");
1208        fatal_error("Please reinstall Mondo and Mindi.");
1209    }
1210    if (run_program_and_log_output
1211        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1212        log_to_screen
1213            ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1214        log_to_screen
1215            ("Please run that command by hand and examine /var/log/mindi.log");
1216        log_to_screen
1217            ("for more information. Perhaps your /etc/fstab file is insane.");
1218        log_to_screen
1219            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1220        retval++;
1221    }
1222
1223    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1224        && !does_file_exist("/etc/raidtab")) {
1225        log_to_screen
1226            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1227        create_raidtab_from_mdstat("/etc/raidtab");
1228    }
1229
1230    if (retval) {
1231        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1232    } else {
1233        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1234    }
1235    return (retval);
1236}
1237
1238/**
1239 * Retrieve the line containing @p label from the config file.
1240 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1241 * @param label What to read from the file.
1242 * @param value Where to put it.
1243 * @return 0 for success, 1 for failure.
1244 */
1245int read_cfg_var(char *config_file, char *label, char *value)
1246{
1247    /*@ buffer ****************************************************** */
1248    char command[MAX_STR_LEN * 2];
1249    char tmp[MAX_STR_LEN];
1250
1251    /*@ end vars *************************************************** */
1252
1253    assert_string_is_neither_NULL_nor_zerolength(config_file);
1254    assert_string_is_neither_NULL_nor_zerolength(label);
1255    if (!does_file_exist(config_file)) {
1256        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1257                config_file);
1258        log_to_screen(tmp);
1259        value[0] = '\0';
1260        return (1);
1261    } else if (strstr(value, "/dev/") && strstr(value, "t0")
1262               && !strcmp(label, "media-dev")) {
1263        log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1264                label, value);
1265        return (0);
1266    } else {
1267        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1268                label, config_file);
1269        strcpy(value, call_program_and_get_last_line_of_output(command));
1270        if (strlen(value) == 0) {
1271            return (1);
1272        } else {
1273            return (0);
1274        }
1275    }
1276}
1277
1278
1279
1280/**
1281 * Remount @c supermount if it was unmounted earlier.
1282 */
1283void remount_supermounts_if_necessary()
1284{
1285    if (g_remount_cdrom_at_end) {
1286        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1287    }
1288    if (g_remount_floppy_at_end) {
1289        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1290    }
1291}
1292
1293/**
1294 * Unmount @c supermount if it's mounted.
1295 */
1296void unmount_supermounts_if_necessary()
1297{
1298    if (run_program_and_log_output
1299        ("mount | grep cdrom | grep super", FALSE) == 0) {
1300        g_remount_cdrom_at_end = TRUE;
1301        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1302    }
1303    if (run_program_and_log_output
1304        ("mount | grep floppy | grep super", FALSE) == 0) {
1305        g_remount_floppy_at_end = TRUE;
1306        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1307    }
1308}
1309
1310/**
1311 * Whether we had to stop autofs (if so, restart it at end).
1312 */
1313bool g_autofs_stopped = FALSE;
1314
1315/**
1316 * Path to the autofs initscript ("" if none exists).
1317 */
1318char g_autofs_exe[MAX_STR_LEN];
1319
1320/**
1321 * Autofs initscript in Xandros Linux distribution.
1322 */
1323#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1324
1325/**
1326 * Autofs initscript in most Linux distributions.
1327 */
1328#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1329
1330/**
1331 * If autofs is mounted, stop it (restart at end).
1332 */
1333void stop_autofs_if_necessary()
1334{
1335    char tmp[MAX_STR_LEN];
1336
1337    g_autofs_exe[0] = '\0';
1338    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1339        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1340    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1341        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1342    }
1343
1344    if (!g_autofs_exe[0]) {
1345        log_msg(3, "No autofs detected.");
1346    } else {
1347        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1348// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1349        sprintf(tmp, "%s stop", g_autofs_exe);
1350        if (run_program_and_log_output(tmp, 2)) {
1351            log_it("Failed to stop autofs - I assume it wasn't running");
1352        } else {
1353            g_autofs_stopped = TRUE;
1354            log_it("Stopped autofs OK");
1355        }
1356    }
1357}
1358
1359/**
1360 * If autofs was stopped earlier, restart it.
1361 */
1362void restart_autofs_if_necessary()
1363{
1364    char tmp[MAX_STR_LEN];
1365
1366    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1367        log_msg(3, "No autofs detected.");
1368        return;
1369    }
1370    sprintf(tmp, "%s start", g_autofs_exe);
1371    if (run_program_and_log_output(tmp, 2)) {
1372        log_it("Failed to start autofs");
1373    } else {
1374        g_autofs_stopped = FALSE;
1375        log_it("Started autofs OK");
1376    }
1377}
1378
1379
1380/**
1381 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1382 */
1383void mount_boot_if_necessary()
1384{
1385    char tmp[MAX_STR_LEN];
1386    char command[MAX_STR_LEN];
1387
1388    log_msg(1, "Started sub");
1389    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1390    g_boot_mountpt[0] = '\0';
1391    log_msg(4, "Done. Great. Seeting command to something");
1392    strcpy(command,
1393           "grep -v \":\" /etc/fstab | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1394    log_msg(4, "Cool. Command = '%s'", command);
1395    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1396    log_msg(4, "tmp = '%s'", tmp);
1397    if (tmp[0]) {
1398        log_it("/boot is at %s according to /etc/fstab", tmp);
1399        if (strstr(tmp, "LABEL=")) {
1400            if (!run_program_and_log_output("mount /boot", 5)) {
1401                strcpy(g_boot_mountpt, "/boot");
1402                log_msg(1, "Mounted /boot");
1403            } else {
1404                log_it("...ignored cos it's a label :-)");
1405            }
1406        } else {
1407            sprintf(command, "mount | grep -w \"%s\"", tmp);
1408            log_msg(3, "command = %s", command);
1409            if (run_program_and_log_output(command, 5)) {
1410                strcpy(g_boot_mountpt, tmp);
1411                sprintf(tmp,
1412                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1413                        g_boot_mountpt);
1414                log_it(tmp);
1415                sprintf(tmp, "mount %s", g_boot_mountpt);
1416                if (run_program_and_log_output(tmp, 5)) {
1417                    g_boot_mountpt[0] = '\0';
1418                    log_msg(1, "Plan B");
1419                    if (!run_program_and_log_output("mount /boot", 5)) {
1420                        strcpy(g_boot_mountpt, "/boot");
1421                        log_msg(1, "Plan B worked");
1422                    } else {
1423                        log_msg(1,
1424                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1425                    }
1426                }
1427            }
1428        }
1429    }
1430    log_msg(1, "Ended sub");
1431}
1432
1433
1434/**
1435 * If we mounted /boot earlier, unmount it.
1436 */
1437void unmount_boot_if_necessary()
1438{
1439    char tmp[MAX_STR_LEN];
1440
1441    log_msg(3, "starting");
1442    if (g_boot_mountpt[0]) {
1443        sprintf(tmp, "umount %s", g_boot_mountpt);
1444        if (run_program_and_log_output(tmp, 5)) {
1445            log_it("WARNING - unable to unmount /boot");
1446        }
1447    }
1448    log_msg(3, "leaving");
1449}
1450
1451
1452
1453/**
1454 * Write a line to a configuration file. Writes a line of the form,
1455 * @c label @c value.
1456 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1457 * @param label What to call this bit of data you're writing.
1458 * @param value The bit of data you're writing.
1459 * @return 0 for success, 1 for failure.
1460 */
1461int write_cfg_var(char *config_file, char *label, char *value)
1462{
1463    /*@ buffers ***************************************************** */
1464    char command[MAX_STR_LEN * 2];
1465    char tempfile[MAX_STR_LEN];
1466    char tmp[MAX_STR_LEN];
1467
1468
1469    /*@ end vars *************************************************** */
1470    assert_string_is_neither_NULL_nor_zerolength(config_file);
1471    assert_string_is_neither_NULL_nor_zerolength(label);
1472    assert(value != NULL);
1473    if (!does_file_exist(config_file)) {
1474        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1475                config_file);
1476        log_to_screen(tmp);
1477        return (1);
1478    }
1479    strcpy(tempfile,
1480           call_program_and_get_last_line_of_output
1481           ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1482    if (does_file_exist(config_file)) {
1483        sprintf(command, "grep -vx '%s .*' %s > %s",
1484                label, config_file, tempfile);
1485        paranoid_system(command);
1486    }
1487    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1488    paranoid_system(command);
1489    sprintf(command, "mv -f %s %s", tempfile, config_file);
1490    paranoid_system(command);
1491    unlink(tempfile);
1492    return (0);
1493}
1494
1495
1496/**
1497 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1498 * information to the logfile.
1499 */
1500void standard_log_debug_msg(int debug_level, const char *szFile,
1501                            const char *szFunction, int nLine,
1502                            const char *fmt, ...)
1503{
1504    va_list args;
1505    int i;
1506    static int depth = 0;
1507    char *tmp;
1508    FILE *fout;
1509
1510    if (depth > 5) {
1511        depth--;
1512        return;
1513    }
1514    depth++;
1515
1516    malloc_string(tmp);
1517
1518    if (debug_level <= g_loglevel) {
1519        va_start(args, fmt);
1520        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1521            return;
1522        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1523
1524        // add tabs to distinguish log levels
1525        if (debug_level > 0) {
1526            for (i = 1; i < debug_level; i++)
1527                fprintf(fout, "\t");
1528            if (getpid() == g_main_pid)
1529                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1530                        nLine);
1531            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1532                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1533                        nLine);
1534            else
1535                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1536                        szFunction, nLine);
1537        }
1538        vfprintf(fout, fmt, args);
1539
1540        // do not slow down the progran if standard debug level
1541        // must be enabled: if no flush, the log won't be up-to-date if there
1542        // is a segfault
1543        //if (g_dwDebugLevel != 1)
1544
1545        va_end(args);
1546        fprintf(fout, "\n");
1547        paranoid_fclose(fout);
1548    }
1549    depth--;
1550    paranoid_free(tmp);
1551}
1552
1553/**
1554 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1555 */
1556void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1557                       ...) = standard_log_debug_msg;
1558
1559
1560/**
1561 * If @p y, malloc @p x, else free @p x.
1562 * @bug This function seems orphaned. Please remove.
1563 */
1564#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1565
1566/**
1567 * Allocate or free important globals, depending on @p mal.
1568 * @param mal If TRUE, malloc; if FALSE, free.
1569 */
1570void do_libmondo_global_strings_thing(int mal)
1571{
1572    if (mal) {
1573        iamhere("Malloc'ing globals");
1574        malloc_string(g_boot_mountpt);
1575        malloc_string(g_mondo_home);
1576        malloc_string(g_tmpfs_mountpt);
1577        malloc_string(g_erase_tmpdir_and_scratchdir);
1578        malloc_string(g_serial_string);
1579        malloc_string(g_magicdev_command);
1580    } else {
1581        iamhere("Freeing globals");
1582        paranoid_free(g_boot_mountpt);
1583        paranoid_free(g_mondo_home);
1584        paranoid_free(g_tmpfs_mountpt);
1585        paranoid_free(g_erase_tmpdir_and_scratchdir);
1586        paranoid_free(g_serial_string);
1587        paranoid_free(g_magicdev_command);
1588    }
1589
1590    /*
1591       char**list_of_arrays[] = {
1592       &g_boot_mountpt,
1593       &g_mondo_home,
1594       &g_tmpfs_mountpt,
1595       &g_erase_tmpdir_and_scratchdir,
1596       &g_serial_string,
1597       &g_magicdev_command,
1598       NULL};
1599
1600       char**ppcurr;
1601       int i;
1602
1603       for(i=0;list_of_arrays[i];i++)
1604       {
1605       log_msg(5, "Allocating %d", i);
1606       ppcurr = list_of_arrays[i];
1607       if (mal)
1608       { *ppcurr = malloc(MAX_STR_LEN); }
1609       else
1610       {
1611       if (*ppcurr)
1612       {
1613       free(*ppcurr);
1614       }
1615       }
1616       }
1617       log_msg(5, "Returning");
1618     */
1619}
1620
1621/**
1622 * Allocate important globals.
1623 * @see do_libmondo_global_strings_thing
1624 */
1625void malloc_libmondo_global_strings(void)
1626{
1627    do_libmondo_global_strings_thing(1);
1628}
1629
1630/**
1631 * Free important globals.
1632 * @see do_libmondo_global_strings_thing
1633 */
1634void free_libmondo_global_strings(void)
1635{
1636    do_libmondo_global_strings_thing(0);
1637}
1638
1639
1640
1641/**
1642 * Stop @c magicdev if it's running.
1643 * The command used to start it is saved in @p g_magicdev_command.
1644 */
1645void stop_magicdev_if_necessary()
1646{
1647    strcpy(g_magicdev_command,
1648           call_program_and_get_last_line_of_output
1649           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1650    if (g_magicdev_command[0]) {
1651        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1652        paranoid_system("killall magicdev");
1653    }
1654}
1655
1656
1657/**
1658 * Restart magicdev if it was stopped.
1659 */
1660void restart_magicdev_if_necessary()
1661{
1662    char *tmp;
1663
1664    malloc_string(tmp);
1665    if (g_magicdev_command && g_magicdev_command[0]) {
1666        sprintf(tmp, "%s &", g_magicdev_command);
1667        paranoid_system(tmp);
1668    }
1669    paranoid_free(tmp);
1670}
1671
1672/* @} - end of utilityGroup */
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