source: branches/stable/mondo/src/common/libmondo-tools.c @ 1592

Last change on this file since 1592 was 1592, checked in by bruno, 12 years ago
  • use of conf file for mkisofs and cdrecord commands
  • unification of cdr,cdrw and dvd
  • may not compile, modifications will continue
  • Property svn:keywords set to Id
File size: 35.0 KB
Line 
1/* $Id: libmondo-tools.c 1592 2007-08-09 13:19:05Z bruno $
2misc tools
3*/
4
5/**
6 * @file
7 * Miscellaneous tools that didn't really fit anywhere else.
8 */
9
10#include "my-stuff.h"
11#include "mr_mem.h"
12#include "mr_msg.h"
13#include "mr_file.h"
14#include "mr_gettext.h"
15#include "mr_conf.h"
16
17#include "mondostructures.h"
18#include "libmondo-tools.h"
19#include "newt-specific-EXT.h"
20#include "libmondo-files-EXT.h"
21#include "libmondo-fork-EXT.h"
22#include "libmondo-raid-EXT.h"
23#include <sys/socket.h>
24#include <netdb.h>
25#include <netinet/in.h>
26#include <arpa/inet.h>
27#include <sys/utsname.h>
28
29/*@unused@*/
30//static char cvsid[] = "$Id: libmondo-tools.c 1592 2007-08-09 13:19:05Z bruno $";
31
32extern int g_tape_buffer_size_MB;
33extern char *g_erase_tmpdir_and_scratchdir;
34extern char *g_serial_string;
35extern bool g_text_mode;
36extern int g_currentY;
37extern int g_current_media_number;
38extern char *MONDO_LOGFILE;
39
40extern struct mr_ar_conf *mr_conf;
41
42/**
43 * @addtogroup globalGroup
44 * @{
45 */
46bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
47 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
48bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
49double g_kernel_version;
50
51/**
52 * The place where /boot is mounted. - Used locally only
53 */
54static char *g_boot_mountpt = NULL;
55
56/**
57 * The serial string (used to differentiate between backups) of the current backup.
58 */
59char *g_serial_string = NULL;
60
61/**
62 * The location where tmpfs is mounted, or "" if it's not mounted.
63 */
64char *g_tmpfs_mountpt = NULL;
65char *g_magicdev_command = NULL;
66
67/**
68 * The default maximum level to log messages at or below.
69 */
70int g_loglevel = DEFAULT_DEBUG_LEVEL;
71
72/* @} - end of globalGroup */
73
74
75extern pid_t g_buffer_pid;
76extern pid_t g_main_pid;
77
78extern t_bkptype g_backup_media_type;
79extern char *g_backup_media_string;
80
81extern bool am_I_in_disaster_recovery_mode(void);
82
83
84/**
85 * @addtogroup utilityGroup
86 * @{
87 */
88/**
89 * Assertion handler. Prints a friendly message to the user,
90 * offering to ignore all, dump core, break to debugger,
91 * exit, or ignore. Intended to be used with an assert() macro.
92 *
93 * @param file The file in which the assertion triggered.
94 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
95 * @param line The line number of the assert() statement.
96 * @param exp The expression that failed (as a string).
97 */
98void _mondo_assert_fail(const char *file,
99                        const char *function, int line, const char *exp)
100{
101    static int ignoring_assertions = 0;
102    bool is_valid = TRUE;
103
104    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
105           function);
106    if (ignoring_assertions) {
107        log_it("Well, the user doesn't care...");
108        return;
109    }
110#ifndef _XWIN
111    if (!g_text_mode)
112        newtSuspend();
113#endif
114    printf(_("ASSERTION FAILED: `%s'\n"), exp);
115    printf(_("\tat %s:%d in %s\n\n"), file, line, function);
116    printf(_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
117    do {
118        is_valid = TRUE;
119        switch (toupper(getchar())) {
120        case 'A':               // ignore (A)ll
121            ignoring_assertions = 1;
122            break;
123        case 'B':               // a(B)ort
124            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
125            raise(SIGABRT);
126            break;              /* "can't get here" */
127        case 'D':               // (D)ebug, aka asm("int 3")
128#ifdef __IA32__
129            __asm__ __volatile__("int $3"); // break to debugger
130#endif
131            break;
132        case 'E':               // (E)xit
133            fatal_error("Failed assertion -- see above for details");
134            break;              /* "can't get here" */
135        case 'I':               // (I)gnore
136            break;
137            /* These next two work as follows:
138               the `default' catches the user's invalid choice and says so;
139               the '\n' catches the newline on the end and prints the prompt again.
140             */
141        case '\n':
142            printf
143                (_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
144            break;
145        default:
146            is_valid = FALSE;
147            printf(_("Invalid choice.\n"));
148            break;
149        }
150    } while (!is_valid);
151
152    if (ignoring_assertions) {
153        log_it("Ignoring ALL assertions from now on.");
154    } else {
155        log_it("Ignoring assertion: %s", exp);
156    }
157
158    getchar();                  // skip \n
159
160#ifndef _XWIN
161    if (!g_text_mode)
162        newtResume();
163#endif
164}
165
166/**
167 * Clean's up users' KDE desktops.
168 * @bug Details about this function are unknown.
169 */
170void clean_up_KDE_desktop_if_necessary(void)
171{
172    char *tmp;
173
174    mr_asprintf(&tmp,
175             "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
176file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
177awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
178else { print $0;};}' $file.old  > $file ; fi ; done");
179    run_program_and_log_output(tmp, 5);
180    mr_free(tmp);
181}
182
183
184/**
185 * Locate mondoarchive's home directory. Searches in /usr/share/mondo,
186 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
187 *
188 * @param home_sz String to store the home directory ("" if it could not be found).
189 * @return 0 for success, nonzero for failure.
190 */
191int find_and_store_mondoarchives_home(char *home_sz)
192{
193    assert(home_sz != NULL);
194    strcpy(home_sz, MONDO_SHARE);
195    return (0);
196}
197
198
199char *get_architecture(void) {
200#ifdef __IA32__
201#   ifdef __X86_64__
202        return ("x86_64");
203#   else
204        return ("i386");
205#   endif
206#endif
207#ifdef __X86_64__
208    return ("x86_64");
209#endif
210#ifdef __IA64__
211    return ("ia64");
212#endif
213    return ("unknown");
214}
215
216
217char *get_uname_m(void) {
218
219    struct utsname utsn;
220    char *tmp = NULL;
221
222    uname(&utsn);
223    mr_asprintf(&tmp, utsn.machine);
224    return (tmp);
225}
226
227
228
229/* BERLIOS: Use uname instead */
230double get_kernel_version(void)
231{
232    char *p, tmp[200];
233    double d;
234#ifdef __FreeBSD__
235    // JOSH - FIXME :)
236    d = 5.2;                    // :-)
237#else
238    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
239    p = strchr(tmp, '.');
240    if (p) {
241        p = strchr(++p, '.');
242        if (p) {
243            while (*p) {
244                *p = *(p + 1);
245                p++;
246            }
247        }
248    }
249//  mr_msg(1, "tmp = '%s'", tmp);
250    d = atof(tmp);
251#endif
252    mr_msg(1, "g_kernel_version = %f", d);
253    return (d);
254}
255
256
257/**
258 * Get the current time.
259 * @return number of seconds since the epoch.
260 */
261long get_time(void)
262{
263    return (long) time((void *) 0);
264}
265
266
267/**
268 * Initialize a RAID volume structure, setting fields to zero. The
269 * actual hard drive is unaffected.
270 *
271 * @param raidrec The RAID volume structure to initialize.
272 * @note This function is system dependent.
273 */
274#ifdef __FreeBSD__
275void initialize_raidrec(struct vinum_volume *raidrec)
276{
277    int i, j;
278    raidrec->volname[0] = '\0';
279    raidrec->plexes = 0;
280    for (i = 0; i < 9; ++i) {
281        raidrec->plex[i].raidlevel = -1;
282        raidrec->plex[i].stripesize = 0;
283        raidrec->plex[i].subdisks = 0;
284        for (j = 0; j < 9; ++j) {
285            strcpy(raidrec->plex[i].sd[j].which_device, "");
286        }
287    }
288}
289#else
290void initialize_raidrec(struct raid_device_record *raidrec)
291{
292    assert(raidrec != NULL);
293    raidrec->raid_device[0] = '\0';
294    raidrec->raid_level = -9;
295    raidrec->persistent_superblock = 1;
296    raidrec->chunk_size = 64;
297    raidrec->parity = -1;
298    raidrec->data_disks.entries = 0;
299    raidrec->spare_disks.entries = 0;
300    raidrec->parity_disks.entries = 0;
301    raidrec->failed_disks.entries = 0;
302    raidrec->additional_vars.entries = 0;
303}
304#endif
305
306
307/**
308 * Insert modules that Mondo requires.
309 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
310 * @c msdosfs and @c ext2fs for FreeBSD.
311 */
312void insmod_crucial_modules(void)
313{
314#ifdef __FreeBSD__
315    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
316    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
317#else
318    system("modprobe -a msdos vfat loop &> /dev/null");
319#endif
320}
321
322
323/**
324 * Finish configuring the backup information structure. Call this function
325 * to set the parameters that depend on those that can be given on the command
326 * line.
327 *
328 * @param bkpinfo The backup information structure. Fields modified/used:
329 * - Used: @c bkpinfo->backup_data
330 * - Used: @c bkpinfo->backup_media_type
331 * - Used: @c bkpinfo->cdrw_speed
332 * - Used: @c bkpinfo->compression_level
333 * - Used: @c bkpinfo->include_paths
334 * - Used: @c bkpinfo->prefix
335 * - Used: @c bkpinfo->isodir
336 * - Used: @c bkpinfo->manual_cd_tray
337 * - Used: @c bkpinfo->make_cd_use_lilo
338 * - Used: @c bkpinfo->media_device
339 * - Used: @c bkpinfo->nfs_mount
340 * - Used: @c bkpinfo->nonbootable_backup
341 * - Used: @c bkpinfo->scratchdir
342 * - Used: @c bkpinfo->tmpdir
343 * - Used: @c bkpinfo->use_lzo
344 * - Modified: @c bkpinfo->call_before_iso
345 * - Modified: @c bkpinfo->call_make_iso
346 * - Modified: @c bkpinfo->optimal_set_size
347 * - Modified: @c bkpinfo->zip_exe
348 * - Modified: @c bkpinfo->zip_suffix
349 *
350 * @return number of errors, or 0 for success.
351 * @note Also creates directories that are specified in the @c bkpinfo structure but
352 * do not exist.
353 */
354int post_param_configuration(struct s_bkpinfo *bkpinfo)
355{
356    char *extra_cdrom_params = NULL;
357    char *mondo_mkisofs_sz = NULL;
358    char *command = NULL;
359    char *hostname = NULL;
360    char *ip_address = NULL;
361    int retval = 0;
362    long avm = 0;
363    char *colon = NULL;
364    char *tmp = NULL;
365    char *call_before_iso_user = NULL;
366    int rdsiz_MB;
367    char *iso_dev = NULL;
368    char *iso_mnt = NULL;
369    char *iso_tmp = NULL;
370    char *iso_path = NULL;
371    FILE *fd1 = NULL;
372
373    assert(bkpinfo != NULL);
374    bkpinfo->optimal_set_size =
375        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
376        1024;
377
378    mr_msg(1, "Foo");
379    if (bkpinfo->backup_media_type == tape) {
380        mr_msg(1, "Bar");
381        mr_asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
382        mr_msg(1, "tmp = '%s'", tmp);
383        if (run_program_and_log_output(tmp, 3)) {
384            fatal_error
385                ("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.");
386        }
387        mr_free(tmp);
388    }
389    make_hole_for_dir(bkpinfo->scratchdir);
390    make_hole_for_dir(bkpinfo->tmpdir);
391    if (bkpinfo->backup_media_type == iso)
392        make_hole_for_dir(bkpinfo->isodir);
393
394    run_program_and_log_output("uname -a", 5);
395    run_program_and_log_output("cat /etc/*-release", 5);
396    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
397    mr_asprintf(&command, "mkdir -p %s", g_tmpfs_mountpt);
398    paranoid_system(command);
399    mr_free(command);
400    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
401#ifdef __FreeBSD__
402    mr_asprintf(&tmp,
403           call_program_and_get_last_line_of_output
404           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
405    avm += atol(tmp);
406    mr_free(tmp);
407    mr_asprintf(&tmp,
408           call_program_and_get_last_line_of_output
409           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
410    avm += atol(tmp);
411    mr_free(tmp);
412    mr_asprintf(&command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
413             g_tmpfs_mountpt);
414#else
415    mr_asprintf(&tmp,
416           call_program_and_get_last_line_of_output
417           ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
418    avm += atol(tmp);
419    mr_free(tmp);
420    mr_asprintf(&command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
421            g_tmpfs_mountpt, rdsiz_MB, 'm');
422    run_program_and_log_output("cat /proc/cpuinfo", 5);
423    /* BERLIOS: rpm is not necessarily there ! */
424    run_program_and_log_output
425        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
426         5);
427#endif
428    if (avm / 1024 > rdsiz_MB * 3) {
429        if (run_program_and_log_output(command, 5)) {
430            g_tmpfs_mountpt[0] = '\0';
431            log_it("Failed to mount tmpfs");
432        } else {
433            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
434        }
435    } else {
436        g_tmpfs_mountpt[0] = '\0';
437        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
438    }
439    mr_free(command);
440
441    if (bkpinfo->use_lzo) {
442        strcpy(bkpinfo->zip_exe, "lzop");
443        strcpy(bkpinfo->zip_suffix, "lzo");
444    } else if (bkpinfo->use_gzip) {
445        strcpy(bkpinfo->zip_exe, "gzip");
446        strcpy(bkpinfo->zip_suffix, "gz");
447    } else if (bkpinfo->compression_level != 0) {
448        strcpy(bkpinfo->zip_exe, "bzip2");
449        strcpy(bkpinfo->zip_suffix, "bz2");
450    } else {
451        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
452    }
453
454// CD-R or CD-RW or DVD
455    if (bkpinfo->backup_media_type == cdrw
456        || bkpinfo->backup_media_type == dvd
457        || bkpinfo->backup_media_type == iso
458        || bkpinfo->backup_media_type == nfs
459        || bkpinfo->backup_media_type == cdr) {
460        if (!bkpinfo->manual_cd_tray) {
461            mr_strcat(extra_cdrom_params, "-waiti ");
462        }
463        if (bkpinfo->backup_media_type == cdrw) {
464            mr_strcat(extra_cdrom_params, "blank=fast ");
465        }
466        if (bkpinfo->nonbootable_backup) {
467            mr_asprintf(&mondo_mkisofs_sz, "%s -no-boot", mr_conf->iso_creation_opt);
468        } else if
469#ifdef __FreeBSD__
470            (TRUE)
471#else
472            (bkpinfo->make_cd_use_lilo)
473#endif
474#ifdef __IA64__
475    {
476        mr_asprintf(&mondo_mkisofs_sz, "%s -b images/mindi-boot.2880.img -c boot.cat", mr_conf->iso_creation_opt);
477    }
478#else
479    {
480        mr_asprintf(&mondo_mkisofs_sz, "%s -b isolinux.bin -c boot.cat", mr_conf->iso_creation_opt);
481    }
482#endif
483        else {
484            mr_asprintf(&mondo_mkisofs_sz, "%s -b isolinux.bin -c boot.cat", mr_conf->iso_creation_opt);
485        }
486        if (bkpinfo->manual_cd_tray) {
487            if (strstr(mr_conf->mondo_iso_burning_cmd,"growisofs") == NULL) {
488                fatal_error("Unable to use manual CD tray with growisofs");
489            }
490            if (bkpinfo->call_before_iso[0] == '\0') {
491                sprintf(bkpinfo->call_before_iso,
492                        "%s %s -o %s/temporary.iso . 2>> %s",
493                        mr_conf->iso_creation_cmd,mondo_mkisofs_sz, bkpinfo->tmpdir, MONDO_LOGFILE);
494            } else {
495                mr_asprintf(&call_before_iso_user, bkpinfo->call_before_iso);
496                sprintf (bkpinfo->call_before_iso,
497                                    "(%s %s -o %s/temporary.iso . 2>> %s ; %s )",
498                        mr_conf->iso_creation_cmd,mondo_mkisofs_sz, bkpinfo->tmpdir, MONDO_LOGFILE, call_before_iso_user);
499                mr_free(call_before_iso_user);
500            }
501            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
502            sprintf(bkpinfo->call_make_iso,
503                    "%s %s %s dev=%s speed=%d %s/temporary.iso",
504                    mr_conf->mondo_iso_burning_cmd,
505                    extra_cdrom_params, 
506                    mr_conf->mondo_iso_burning_opt, 
507                    bkpinfo->media_device,
508                    bkpinfo->cdrw_speed, 
509                    bkpinfo->tmpdir);
510        } else {
511            if (strstr(mr_conf->mondo_iso_burning_cmd,"growisofs") == NULL) {
512                if (getenv ("SUDO_COMMAND")) {
513                    mr_asprintf(&command, "strings `which growisofs` | grep -c SUDO_COMMAND");
514                    if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
515                        fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
516                    }
517                    mr_free(command);
518                }
519                sprintf(bkpinfo->call_make_iso,
520                    "%s %s %s %s -Z %s -speed=%d . 2>> %s",
521                    mr_conf->mondo_iso_burning_cmd,
522                    mondo_mkisofs_sz, 
523                    extra_cdrom_params, 
524                    mr_conf->mondo_iso_burning_opt,
525                    bkpinfo->media_device,
526                    bkpinfo->cdrw_speed,
527                    MONDO_LOGFILE);
528            } else {
529                sprintf(bkpinfo->call_make_iso,
530                    "%s %s . 2>> %s | %s %s %s dev=%s speed=%d -",
531                    mr_conf->iso_creation_cmd,
532                    mondo_mkisofs_sz, 
533                    MONDO_LOGFILE,
534                    mr_conf->mondo_iso_burning_cmd,
535                    extra_cdrom_params, 
536                    mr_conf->mondo_iso_burning_opt,
537                    bkpinfo->media_device,
538                    bkpinfo->cdrw_speed);
539            }
540        }
541        mr_free(mondo_mkisofs_sz);
542        mr_free(extra_cdrom_params);
543    }                           // end of CD code
544
545    if (bkpinfo->backup_media_type == iso) {
546
547/* Patch by Conor Daly <conor.daly@met.ie>
548 * 23-june-2004
549 * Break up isodir into iso_mnt and iso_path
550 * These will be used along with iso-dev at restore time
551 * to locate the ISOs where ever they're mounted
552 */
553
554        log_it("isodir = %s", bkpinfo->isodir);
555        mr_asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1",
556                 bkpinfo->isodir);
557        log_it("command = %s", command);
558        mr_asprintf(&iso_dev, call_program_and_get_last_line_of_output(command));
559        mr_free(command);
560        log_it("res of it = %s", iso_dev);
561
562        fd1 = mr_fopen(MONDORESTORECFG, "a");
563        mr_fprintf(fd1, "iso-dev=%s\n", iso_dev);
564
565        mr_asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
566                 iso_dev);
567        mr_free(iso_dev);
568
569        log_it("command = %s", command);
570        mr_asprintf(&iso_mnt,call_program_and_get_last_line_of_output(command));
571        mr_free(command);
572
573        log_it("res of it = %s", iso_mnt);
574        mr_fprintf(fd1, "iso-mnt=%s\n", iso_mnt);
575        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
576
577        mr_asprintf(&iso_tmp, "%s", bkpinfo->isodir);
578        if (strlen(iso_tmp) >= strlen(iso_mnt)) {
579            mr_asprintf(&iso_path, "%s", iso_tmp + strlen(iso_mnt));
580        } else {
581            mr_asprintf(&iso_path, "");
582        }
583        mr_free(iso_tmp);
584        mr_free(iso_mnt);
585
586        log_it("isodir: %s", iso_path);
587        mr_fprintf(fd1, "isodir=%s\n", iso_path);
588        mr_free(iso_path);
589
590        log_it("iso-prefix: %s",  bkpinfo->prefix);
591        mr_fprintf(fd1, "iso-prefix=%s\n", bkpinfo->prefix);
592
593        mr_fclose(fd1);
594    }                           // end of iso code
595
596    if (bkpinfo->backup_media_type == nfs) {
597        mr_asprintf(&hostname, bkpinfo->nfs_mount);
598        colon = strchr(hostname, ':');
599        if (!colon) {
600            log_it("nfs mount doesn't have a colon in it");
601            retval++;
602        } else {
603            struct hostent *hent;
604
605            *colon = '\0';
606            hent = gethostbyname(hostname);
607            if (!hent) {
608                log_it("Can't resolve NFS mount (%s): %s", hostname,
609                       hstrerror(h_errno));
610                retval++;
611            } else {
612                mr_asprintf(&ip_address, "%s%s", inet_ntoa((struct in_addr)
613                                                *((struct in_addr *) hent->h_addr)),
614                                                strchr(bkpinfo->nfs_mount, ':'));
615                strcpy(bkpinfo->nfs_mount, ip_address);
616                mr_free(ip_address);
617            }
618        }
619        store_nfs_config(bkpinfo);
620        mr_free(hostname);
621    }
622
623    log_it("Finished processing incoming params");
624    if (retval) {
625        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
626    }
627
628    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
629        log_it("tmpdir or scratchdir are blank/missing");
630        retval++;
631    }
632    if (bkpinfo->include_paths[0] == '\0') {
633        //      fatal_error ("Why no backup path?");
634        strcpy(bkpinfo->include_paths, "/");
635    }
636    chmod(bkpinfo->scratchdir, 0700);
637    chmod(bkpinfo->tmpdir, 0700);
638    g_backup_media_type = bkpinfo->backup_media_type;
639    g_backup_media_string = bkpinfo->backup_media_string;
640    return (retval);
641}
642
643
644/**
645 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
646 * Seeds the random-number generator, loads important modules, checks the sanity
647 * of the user's Linux distribution, and deletes logfile.
648 * @param bkpinfo The backup information structure. Will be initialized.
649 * @return number of errors (0 for success)
650 */
651int pre_param_configuration(struct s_bkpinfo *bkpinfo)
652{
653    int res = 0;
654
655    make_hole_for_dir(MNT_CDROM);
656    assert(bkpinfo != NULL);
657    srandom((unsigned long) (time(NULL)));
658    insmod_crucial_modules();
659    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
660    if (bkpinfo->disaster_recovery) {
661        if (!does_nonMS_partition_exist()) {
662            fatal_error
663                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
664        }
665    }
666
667    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
668    res += some_basic_system_sanity_checks();
669    if (res) {
670        log_it("Your distribution did not pass Mondo's sanity test.");
671    }
672    g_current_media_number = 1;
673    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
674    return (res);
675}
676
677
678
679
680/**
681 * Reset all fields of the backup information structure to a sensible default.
682 * @param bkpinfo The @c bkpinfo to reset.
683 */
684void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
685{
686    mr_msg(1, "Hi");
687
688    assert(bkpinfo != NULL);
689    /* BERLIOS : Useless ?? */
690    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
691
692    bkpinfo->manual_cd_tray = FALSE;
693    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
694    bkpinfo->media_device[0] = '\0';
695    bkpinfo->media_size = 0L;
696    bkpinfo->boot_loader = '\0';
697    bkpinfo->boot_device[0] = '\0';
698    bkpinfo->zip_exe[0] = '\0';
699    bkpinfo->zip_suffix[0] = '\0';
700    bkpinfo->restore_path[0] = '\0';
701    bkpinfo->use_lzo = FALSE;
702    bkpinfo->use_gzip = FALSE;
703    bkpinfo->do_not_compress_these[0] = '\0';
704    bkpinfo->verify_data = FALSE;
705    bkpinfo->backup_data = FALSE;
706    bkpinfo->restore_data = FALSE;
707    bkpinfo->disaster_recovery =
708        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
709    if (bkpinfo->disaster_recovery) {
710        strcpy(bkpinfo->isodir, "/");
711    } else {
712        strcpy(bkpinfo->isodir, "/var/cache/mondo/iso");
713    }
714    strcpy(bkpinfo->prefix, STD_PREFIX);
715
716    bkpinfo->scratchdir[0] = '\0';
717    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
718    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
719    bkpinfo->optimal_set_size = 0;
720    bkpinfo->backup_media_type = none;
721    bkpinfo->backup_media_string[0] = '\0';
722    strcpy(bkpinfo->include_paths, "/");
723    bkpinfo->exclude_paths[0] = '\0';
724    bkpinfo->call_before_iso[0] = '\0';
725    bkpinfo->call_make_iso[0] = '\0';
726    bkpinfo->call_after_iso[0] = '\0';
727    bkpinfo->image_devs[0] = '\0';
728    bkpinfo->postnuke_tarball[0] = '\0';
729    bkpinfo->kernel_path[0] = '\0';
730    bkpinfo->nfs_mount[0] = '\0';
731    bkpinfo->nfs_remote_dir[0] = '\0';
732    bkpinfo->wipe_media_first = FALSE;
733    bkpinfo->differential = FALSE;
734    bkpinfo->cdrw_speed = 0;
735// patch by Herman Kuster 
736    bkpinfo->differential = 0;
737// patch end
738    bkpinfo->compression_level = 3;
739}
740
741
742/**
743 * Get the remaining free space (in MB) on @p partition.
744 * @param partition The partition to check free space on (either a device or a mountpoint).
745 * @return The free space on @p partition, in MB.
746 */
747long free_space_on_given_partition(char *partition)
748{
749    char *command = NULL;
750    char *out_sz = NULL;
751    long res = 0L;
752
753    assert_string_is_neither_NULL_nor_zerolength(partition);
754
755    mr_asprintf(&command, "df -m -P %s &> /dev/null", partition);
756    if (system(command)) {
757        return (-1);
758    }                           // partition does not exist
759    mr_free(command);
760
761    mr_asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
762            partition);
763    mr_asprintf(&out_sz, call_program_and_get_last_line_of_output(command));
764    mr_free(command);
765
766    if (strlen(out_sz) == 0) {
767        return (-1);
768    }                           // error within df, probably
769    res = atol(out_sz);
770    mr_free(out_sz);
771    return (res);
772}
773
774
775/**
776 * Check the user's system for sanity. Checks performed:
777 * - make sure user has enough RAM (32mb required, 64mb recommended)
778 * - make sure user has enough free space in @c /
779 * - check kernel for ramdisk support
780 * - make sure afio, cdrecord, bzip2, awk, md5sum, strings, mindi, and buffer exist
781 * - make sure CD-ROM is unmounted
782 * - make sure /etc/modules.conf exists
783 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
784 *
785 * @return number of problems with the user's setup (0 for success)
786 */
787int some_basic_system_sanity_checks()
788{
789
790    /*@ buffers ************ */
791    char *tmp = NULL;
792
793    /*@ int's *************** */
794    int retval = 0;
795    long Lres;
796
797
798    mvaddstr_and_log_it(g_currentY, 0,
799                        "Checking sanity of your Linux distribution");
800#ifndef __FreeBSD__
801    if (system("which mkfs.vfat &> /dev/null")
802        && !system("which mkfs.msdos &> /dev/null")) {
803        log_it
804            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
805        run_program_and_log_output
806            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
807    }
808    mr_asprintf(&tmp,
809           call_program_and_get_last_line_of_output
810           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
811    if (atol(tmp) < 35000) {
812        retval++;
813        log_to_screen(_("You must have at least 32MB of RAM to use Mondo."));
814    }
815    if (atol(tmp) < 66000) {
816        log_to_screen
817            (_("WARNING! You have very little RAM. Please upgrade to 64MB or more."));
818    }
819    mr_free(tmp);
820#endif
821
822    Lres = free_space_on_given_partition(MONDO_CACHE);
823    log_it("Free space on given partition = %ld MB", Lres);
824
825    if (Lres < 50) {
826        fatal_error("Your "MONDO_CACHE" partition has <50MB free. Please adjust your partition table to something saner or make "MONDO_CACHE" a symbolic link"); 
827    }
828
829    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
830        retval++;
831        log_to_screen
832            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
833        fatal_error
834            ("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. :)");
835    }
836#ifndef __FreeBSD__
837    if (run_program_and_log_output
838        ("grep ramdisk /proc/devices", FALSE)) {
839        if (!ask_me_yes_or_no
840            (_("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?")))
841        {
842            //          retval++;
843            log_to_screen
844                (_("It looks as if your kernel lacks ramdisk and initrd support."));
845            log_to_screen
846                (_("I'll allow you to proceed but FYI, if I'm right, your kernel is broken."));
847        }
848    }
849#endif
850    retval += whine_if_not_found(mr_conf->mr_iso_creation_cmd);
851    retval += whine_if_not_found(mr_conf->mondo_iso_burning_cmd);
852    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
853    retval += whine_if_not_found("bzip2");
854    retval += whine_if_not_found("gzip");
855    retval += whine_if_not_found("awk");
856    retval += whine_if_not_found("md5sum");
857    retval += whine_if_not_found("strings");
858    retval += whine_if_not_found("mindi");
859    retval += whine_if_not_found("buffer");
860
861    // abort if Windows partition but no ms-sys and parted
862    if (!run_program_and_log_output
863        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
864        ||
865        !run_program_and_log_output
866        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
867        log_to_screen(_("I think you have a Windows 9x partition."));
868        retval += whine_if_not_found("parted");
869#ifndef __IA64__
870        /* IA64 always has one vfat partition for EFI even without Windows */
871        // retval +=
872        if (!find_home_of_exe("ms-sys")) {
873            log_to_screen("Please install ms-sys just in case.");
874        }
875#endif
876    }
877
878    if (!find_home_of_exe("cmp")) {
879        if (!find_home_of_exe("true")) {
880            whine_if_not_found("cmp");
881        } else {
882            log_to_screen
883                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
884            if (run_program_and_log_output
885                ("cp -f `which true` /usr/bin/cmp", 0)) {
886                fatal_error("Failed to create dummy 'cmp' file.");
887            }
888        }
889    }
890    run_program_and_log_output
891        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
892    mr_asprintf(&tmp,
893           call_program_and_get_last_line_of_output
894           ("mount | grep -E \"cdr(om|w)\""));
895    if (strcmp("", tmp)) {
896        if (strstr(tmp, "autofs")) {
897            log_to_screen
898                (_("Your CD-ROM is mounted via autofs. I therefore cannot tell"));
899            log_to_screen
900                (_("if a CD actually is inserted. If a CD is inserted, please"));
901            log_to_screen(_("eject it. Thank you."));
902            log_it
903                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
904        } else
905            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
906            retval++;
907            fatal_error
908                ("Your CD-ROM drive is mounted. Please unmount it.");
909        }
910    }
911    mr_free(tmp);
912#ifndef __FreeBSD__
913    if (!does_file_exist("/etc/modules.conf")) {
914        if (does_file_exist("/etc/conf.modules")) {
915            log_it("Linking /etc/modules.conf to /etc/conf.modules");
916            run_program_and_log_output
917                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
918        } else if (does_file_exist("/etc/modprobe.d")) {
919            log_it
920                ("Directory /etc/modprobe.d found. mindi will use its contents.");
921        } else if (does_file_exist("/etc/modprobe.conf")) {
922            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
923            run_program_and_log_output
924                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
925        } else {
926            retval++;
927            log_to_screen
928                (_("Please find out what happened to /etc/modules.conf"));
929        }
930    }
931#endif
932
933    run_program_and_log_output("cat /etc/fstab", 5);
934#ifdef __FreeBSD__
935    run_program_and_log_output("vinum printconfig", 5);
936#else
937    run_program_and_log_output("cat /etc/raidtab", 5);
938#endif
939
940    if (run_program_and_log_output("mindi -V", 1)) {
941        log_to_screen(_("Could not ascertain mindi's version number."));
942        log_to_screen
943            (_("You have not installed Mondo and/or Mindi properly."));
944        log_to_screen(_("Please uninstall and reinstall them both."));
945        fatal_error("Please reinstall Mondo and Mindi.");
946    }
947    if (run_program_and_log_output
948        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
949        log_to_screen
950            (_("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason."));
951        log_to_screen
952            (_("Please run that command by hand and examine /var/log/mindi.log"));
953        log_to_screen
954            (_("for more information. Perhaps your /etc/fstab file is insane."));
955        log_to_screen
956            (_("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see."));
957        retval++;
958    }
959
960    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
961        && !does_file_exist("/etc/raidtab")) {
962        log_to_screen
963            (_("You have RAID partitions but no /etc/raidtab - creating one from "MDSTAT_FILE));
964        create_raidtab_from_mdstat("/etc/raidtab");
965    }
966
967    if (retval) {
968        mvaddstr_and_log_it(g_currentY++, 74, _("Failed."));
969    } else {
970        mvaddstr_and_log_it(g_currentY++, 74, _("Done."));
971    }
972    return (retval);
973}
974
975/**
976 * Retrieve the line containing @p label from the config file.
977 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
978 * @param label What to read from the file.
979 * @param value Where to put it.
980 * @return 0 for success, 1 for failure.
981 */
982int read_cfg_var(char *config_file, char *label, char *value)
983{
984    /*@ buffer ****************************************************** */
985    char *command = NULL;
986    char *tmp = NULL;
987
988    /*@ end vars *************************************************** */
989
990    assert_string_is_neither_NULL_nor_zerolength(config_file);
991    assert_string_is_neither_NULL_nor_zerolength(label);
992
993    if (!does_file_exist(config_file)) {
994        mr_asprintf(&tmp, "(read_cfg_var) Cannot find %s config file",
995                 config_file);
996        log_to_screen(tmp);
997        mr_free(tmp);
998        value[0] = '\0';
999        return (1);
1000    /* } BERLIOS: Useless:
1001         else if (strstr(value, "/dev/") && strstr(value, "t0")
1002               && !strcmp(label, "media-dev")) {
1003        mr_msg(2, "FYI, I shan't read new value for %s - already got %s",
1004                label, value);
1005        return (0);
1006    */ } else {
1007        mr_asprintf(&command, "grep '%s .*' %s| cut -d'=' -f2,3,4,5",
1008                label, config_file);
1009        strcpy(value, call_program_and_get_last_line_of_output(command));
1010        mr_free(command);
1011        if (strlen(value) == 0) {
1012            return (1);
1013        } else {
1014            return (0);
1015        }
1016    }
1017}
1018
1019
1020/**
1021 * Remount @c supermount if it was unmounted earlier.
1022 */
1023void remount_supermounts_if_necessary()
1024{
1025    if (g_remount_cdrom_at_end) {
1026        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1027    }
1028    if (g_remount_floppy_at_end) {
1029        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1030    }
1031}
1032
1033/**
1034 * Unmount @c supermount if it's mounted.
1035 */
1036void unmount_supermounts_if_necessary()
1037{
1038    if (run_program_and_log_output
1039        ("mount | grep cdrom | grep super", FALSE) == 0) {
1040        g_remount_cdrom_at_end = TRUE;
1041        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1042    }
1043    if (run_program_and_log_output
1044        ("mount | grep floppy | grep super", FALSE) == 0) {
1045        g_remount_floppy_at_end = TRUE;
1046        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1047    }
1048}
1049
1050/**
1051 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1052 */
1053void mount_boot_if_necessary()
1054{
1055    char *tmp = NULL;
1056    char *tmp1 = NULL;
1057    char *command = NULL;
1058
1059    mr_msg(1, "Started sub");
1060    mr_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1061    g_boot_mountpt[0] = '\0';
1062    mr_msg(4, "Done. Great. Setting command to something");
1063    mr_asprintf(&command,
1064             "grep -v ':' /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1065    mr_msg(4, "Cool. Command = '%s'", command);
1066    mr_asprintf(&tmp, call_program_and_get_last_line_of_output(command));
1067    mr_free(command);
1068
1069    mr_msg(4, "tmp = '%s'", tmp);
1070    if (tmp[0]) {
1071        log_it("/boot is at %s according to /etc/fstab", tmp);
1072        if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1073            if (!run_program_and_log_output("mount /boot", 5)) {
1074                strcpy(g_boot_mountpt, "/boot");
1075                mr_msg(1, "Mounted /boot");
1076            } else {
1077                log_it("...ignored cos it's a label or uuid :-)");
1078            }
1079        } else {
1080            mr_asprintf(&command, "mount | grep -E '^%s'", tmp);
1081            mr_msg(3, "command = %s", command);
1082            if (run_program_and_log_output(command, 5)) {
1083                strcpy(g_boot_mountpt, tmp);
1084                mr_asprintf(&tmp1,
1085                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1086                        g_boot_mountpt);
1087                log_it(tmp1);
1088                mr_free(tmp1);
1089
1090                mr_asprintf(&tmp1, "mount %s", g_boot_mountpt);
1091                if (run_program_and_log_output(tmp1, 5)) {
1092                    g_boot_mountpt[0] = '\0';
1093                    mr_msg(1, "Plan B");
1094                    if (!run_program_and_log_output("mount /boot", 5)) {
1095                        strcpy(g_boot_mountpt, "/boot");
1096                        mr_msg(1, "Plan B worked");
1097                    } else {
1098                        mr_msg(1,
1099                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1100                    }
1101                }
1102                mr_free(tmp1);
1103            }
1104            mr_free(command);
1105        }
1106    }
1107    mr_free(tmp);
1108    mr_msg(1, "Ended sub");
1109}
1110
1111
1112/**
1113 * If we mounted /boot earlier, unmount it.
1114 */
1115void unmount_boot_if_necessary()
1116{
1117    char *tmp;
1118
1119    mr_msg(3, "starting");
1120    if (g_boot_mountpt[0]) {
1121        mr_asprintf(&tmp, "umount %s", g_boot_mountpt);
1122        if (run_program_and_log_output(tmp, 5)) {
1123            log_it("WARNING - unable to unmount /boot");
1124        }
1125        mr_free(tmp);
1126    }
1127    mr_msg(3, "leaving");
1128}
1129
1130
1131/**
1132 * Write a line to a configuration file. Writes a line of the form,
1133 * @c label @c value.
1134 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1135 * @param label What to call this bit of data you're writing.
1136 * @param value The bit of data you're writing.
1137 * @return 0 for success, 1 for failure.
1138 */
1139int write_cfg_var(char *config_file, char *label, char *value)
1140{
1141    /*@ buffers ***************************************************** */
1142    char *command = NULL;
1143    char *tempfile = NULL;
1144    char *tmp = NULL;
1145
1146
1147    /*@ end vars *************************************************** */
1148    assert_string_is_neither_NULL_nor_zerolength(config_file);
1149    assert_string_is_neither_NULL_nor_zerolength(label);
1150    assert(value != NULL);
1151
1152    if (!does_file_exist(config_file)) {
1153        mr_asprintf(&tmp, "(write_cfg_file) Cannot find %s config file",
1154                 config_file);
1155        log_to_screen(tmp);
1156        mr_free(tmp);
1157        return (1);
1158    }
1159    mr_asprintf(&tempfile,
1160           call_program_and_get_last_line_of_output
1161           ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1162    if (does_file_exist(config_file)) {
1163        mr_asprintf(&command, "grep -vE '^%s .*$' %s > %s",
1164                label, config_file, tempfile);
1165        paranoid_system(command);
1166        mr_free(command);
1167    }
1168    mr_asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1169    paranoid_system(command);
1170    mr_free(command);
1171
1172    mr_asprintf(&command, "mv -f %s %s", tempfile, config_file);
1173    paranoid_system(command);
1174    mr_free(command);
1175    unlink(tempfile);
1176    mr_free(tempfile);
1177    return (0);
1178}
1179
1180
1181/**
1182 * Allocate or free important globals, depending on @p mal.
1183 * @param mal If TRUE, malloc; if FALSE, free.
1184 */
1185void do_libmondo_global_strings_thing(int mal)
1186{
1187    if (mal) {
1188        iamhere("Malloc'ing globals");
1189        malloc_string(g_boot_mountpt);
1190        malloc_string(g_tmpfs_mountpt);
1191        malloc_string(g_erase_tmpdir_and_scratchdir);
1192        malloc_string(g_serial_string);
1193        malloc_string(g_magicdev_command);
1194    } else {
1195        iamhere("Freeing globals");
1196        mr_free(g_boot_mountpt);
1197        mr_free(g_tmpfs_mountpt);
1198        mr_free(g_erase_tmpdir_and_scratchdir);
1199        mr_free(g_serial_string);
1200        mr_free(g_magicdev_command);
1201    }
1202}
1203
1204/**
1205 * Allocate important globals.
1206 * @see do_libmondo_global_strings_thing
1207 */
1208void malloc_libmondo_global_strings(void)
1209{
1210    do_libmondo_global_strings_thing(1);
1211}
1212
1213/**
1214 * Free important globals.
1215 * @see do_libmondo_global_strings_thing
1216 */
1217void free_libmondo_global_strings(void)
1218{
1219    do_libmondo_global_strings_thing(0);
1220}
1221
1222
1223
1224/**
1225 * Stop @c magicdev if it's running.
1226 * The command used to start it is saved in @p g_magicdev_command.
1227 */
1228void stop_magicdev_if_necessary()
1229{
1230    strcpy(g_magicdev_command,
1231           call_program_and_get_last_line_of_output
1232           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1233    if (g_magicdev_command[0]) {
1234        mr_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1235        paranoid_system("killall magicdev");
1236    }
1237}
1238
1239
1240/**
1241 * Restart magicdev if it was stopped.
1242 */
1243void restart_magicdev_if_necessary()
1244{
1245    char *tmp = NULL;
1246
1247    if (g_magicdev_command && g_magicdev_command[0]) {
1248        mr_asprintf(&tmp, "%s &", g_magicdev_command);
1249        paranoid_system(tmp);
1250        mr_free(tmp);
1251    }
1252}
1253
1254/* @} - end of utilityGroup */
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