source: MondoRescue/branches/2.05/mondo/mondo/common/libmondo-verify.c @ 128

Last change on this file since 128 was 128, checked in by bcornec, 15 years ago

indent on all the C code

  • Property svn:keywords set to Id
File size: 35.2 KB
Line 
1/***************************************************************************
2libmondo-verify.c  -  description
3-----------------
4
5begin: Fri Apr 19 16:40:35 EDT 2002
6copyright : (C) 2002 Mondo  Hugo Rabson
7email     : Hugo Rabson <hugorabson@msn.com>
8edited by : by Stan Benoit 4/2002
9email     : troff@nakedsoul.org
10cvsid     : $Id: libmondo-verify.c 128 2005-11-19 01:27:41Z bcornec $
11***************************************************************************/
12
13/***************************************************************************
14 *                                                                         *
15 *   This program is free software; you can redistribute it and/or modify  *
16 *   it under the terms of the GNU General Public License as published by  *
17 *   the Free Software Foundation; either version 2 of the License, or     *
18 *   (at your option) any later version.                                   *
19 *                                                                         *
20 ***************************************************************************/
21/* mondo-verify
22
23
2407/07
25- added star verify support
26
2704/04/2004
28- added star support
29
3010/23/2003
31- changed "ISO #n" to "<media descriptor> #n"
32
3310/01
34- working on biggiefile verification (CDs)
35
3609/16
37- fixed bug in CD biggie verif'n
38
3909/15
40- state explicitly that we do not verify disk images
41
4209/13
43- working on verify_all_slices_on_CD()
44
4509/01
46- write list of changed biggiefiles (streaming only) to changed.files
47
4805/05
49- exclude /dev/ * from list of changed files
50- add Joshua Oreman's FreeBSD patches
51
5204/24/2003
53- added lots of assert()'s and log_OS_error()'s
54
5509/01 - 09/30/2002
56- run_program_and_log_output() now takes boolean operator to specify
57  whether it will log its activities in the event of _success_
58- eject_device() added
59- cleaned up 'changed file' feedback a little bit
60
6108/01 - 08/31
62- make sure to prefix bkpinfo->restore_path to local biggiefile fname when
63  comparing it to the archived copy of biggiefile; otherwise, biggiefile
64  not found & checksum missing & so on
65- exclude "incheckentry xwait()" from changed.files
66- cleaned up some log_it() calls
67
6807/01 - 07/31
69- renamed libmondo-verify.c
70- say 'bigfile' not 'biggiefile'
71- exclude /dev/ * from changed.files
72
7301/01 - 06/30
74- remove /tmp/changed.files.* dead files
75- don't pclose() tape after calling closein_tape(): the latter does it already
76- fixed bug in verify_cd_image()'s CD-mounting code
77- don't write to screen "old cksum.. curr cksum.."
78- changed the gawks to awks for the benefit of Debian
79- handles files >2GB in size
80- fixed bug in /tmp/changed.files-generator
81- re-enabled a lot of CD-verification code
82- afioballs are saved in %s/tmpfs/ now (%s=tmpdir)
83- changed some labels to make them more user-friendly
84- don't chdir() anywhere before verifying stuff
85- changed files are now detected by verify_tape_backup() and listed in
86  /tmp/changed.files
87- replaced &> with > .. 2>
88- still implementing improved tape support
89
90
91Started late Dec, 2001
92
93-----------------------------------------------------------------------------
94*/
95
96
97/**
98 * @file
99 * Functions for verifying backups (booted from hard drive, not CD).
100 */
101
102#include "my-stuff.h"
103#include "mondostructures.h"
104#include "libmondo-verify.h"
105#include "libmondo-gui-EXT.h"
106#include "libmondo-files-EXT.h"
107#include "libmondo-fork-EXT.h"
108#include "libmondo-stream-EXT.h"
109#include "libmondo-string-EXT.h"
110#include "libmondo-devices-EXT.h"
111#include "libmondo-tools-EXT.h"
112#include "lib-common-externs.h"
113
114/*@unused@*/
115//static char cvsid[] = "$Id: libmondo-verify.c 128 2005-11-19 01:27:41Z bcornec $";
116
117char *vfy_tball_fname(struct s_bkpinfo *, char *, int);
118
119
120/**
121 * The number of the most recently verified afioball.
122 * @ingroup globalGroup
123 */
124int g_last_afioball_number = -1;
125
126
127/**
128 * Generate a list of the files that have changed, based on @c afio @c -r
129 * messages.
130 * @param changedfiles_fname Filename of the place to put a list of afio's reported changed.
131 * @param ignorefiles_fname Filename of a list of files to ignore (use "" if none).
132 * @param stderr_fname File containing afio's stderr output.
133 * @return The number of differences found (0 for a perfect backup).
134 * @bug This function seems orphaned.
135 * @ingroup utilityGroup
136 */
137long
138generate_list_of_changed_files(char *changedfiles_fname,
139                               char *ignorefiles_fname, char *stderr_fname)
140{
141    /*@ buffer ********************************************************** */
142    char *command;
143    char *afio_found_changes;
144
145    /*@ int ************************************************************* */
146    int res = 0;
147
148    /*@ long ************************************************************ */
149    long afio_diffs = 0;
150
151    command = malloc(2000);
152    afio_found_changes = malloc(500);
153    assert_string_is_neither_NULL_nor_zerolength(changedfiles_fname);
154    assert_string_is_neither_NULL_nor_zerolength(ignorefiles_fname);
155    assert_string_is_neither_NULL_nor_zerolength(stderr_fname);
156
157    sprintf(afio_found_changes, "%s.afio", ignorefiles_fname);
158    paranoid_system("sync");
159
160/*  sprintf (command,
161       "cat %s | grep \"afio: \" | awk '{j=substr($0,8); i=index(j,\": \");printf \"/%%s\\n\",substr(j,1,i-2);}' | sort | uniq | grep -v \"incheckentry.*xwait\" | grep -vx \"/afio:.*\" | grep -vx \"/dev/.*\" > %s",
162       stderr_fname, afio_found_changes);
163*/
164
165    log_msg(1, "Now scanning log file for 'afio: ' stuff");
166    sprintf(command,
167            "cat %s | grep \"afio: \" | sed 's/afio: //' | grep -vx \"/dev/.*\" >> %s",
168            stderr_fname, afio_found_changes);
169    log_msg(2, command);
170    res = system(command);
171    if (res) {
172        log_msg(2, "Warning - failed to think");
173    }
174
175    log_msg(1, "Now scanning log file for 'star: ' stuff");
176    sprintf(command,
177            "cat %s | grep \"star: \" | sed 's/star: //' | grep -vx \"/dev/.*\" >> %s",
178            stderr_fname, afio_found_changes);
179    log_msg(2, command);
180    res = system(command);
181    if (res) {
182        log_msg(2, "Warning - failed to think");
183    }
184//  exclude_nonexistent_files (afio_found_changes);
185    afio_diffs = count_lines_in_file(afio_found_changes);
186    sprintf(command,
187            "cat %s %s %s | sort | uniq -c | awk '{ if ($1==\"2\") {print $2;};}' | grep -v \"incheckentry xwait()\" > %s",
188            ignorefiles_fname, afio_found_changes, afio_found_changes,
189            changedfiles_fname);
190    log_msg(2, command);
191    paranoid_system(command);
192    paranoid_free(command);
193    paranoid_free(afio_found_changes);
194    return (afio_diffs);
195}
196
197
198/**
199 * @addtogroup LLverifyGroup
200 * @{
201 */
202/**
203 * Verify all afioballs stored on the inserted CD (or an ISO image).
204 * @param bkpinfo The backup information structure. @c bkpinfo->backup_media_type
205 * is used in this function, and the structure is also passed to verify_an_afioball_from_CD().
206 * @param mountpoint The location the CD/DVD/ISO is mounted on.
207 * @return The number of sets containing differences (0 for success).
208 */
209int verify_afioballs_on_CD(struct s_bkpinfo *bkpinfo, char *mountpoint)
210{
211
212    /*@ buffers ********************************************************* */
213    char *tmp;
214
215    /*@ int ************************************************************* */
216    int set_number = 0;
217    int retval = 0;
218    int total_sets = 0;
219    int percentage = 0;
220
221    assert_string_is_neither_NULL_nor_zerolength(mountpoint);
222    assert(bkpinfo != NULL);
223    malloc_string(tmp);
224
225    for (set_number = 0;
226         set_number < 9999
227         &&
228         !does_file_exist(vfy_tball_fname
229                          (bkpinfo, mountpoint, set_number));
230         set_number++);
231    if (!does_file_exist(vfy_tball_fname(bkpinfo, mountpoint, set_number))) {
232        return (0);
233    }
234
235    if (g_last_afioball_number != set_number - 1) {
236        if (set_number == 0) {
237            log_msg(1,
238                    "Weird error in verify_afioballs_on_CD() but it's really a cosmetic error, nothing more");
239        } else {
240            retval++;
241            sprintf(tmp, "Warning - missing set(s) between %d and %d\n",
242                    g_last_afioball_number, set_number - 1);
243            log_to_screen(tmp);
244        }
245    }
246    sprintf(tmp, "Verifying %s #%d's tarballs",
247            media_descriptor_string(bkpinfo->backup_media_type),
248            g_current_media_number);
249    open_evalcall_form(tmp);
250
251    for (total_sets = set_number;
252         does_file_exist(vfy_tball_fname(bkpinfo, mountpoint, total_sets));
253         total_sets++) {
254        log_msg(1, "total_sets = %d", total_sets);
255    }
256    for (;
257         does_file_exist(vfy_tball_fname(bkpinfo, mountpoint, set_number));
258         set_number++) {
259        percentage =
260            (set_number - g_last_afioball_number) * 100 / (total_sets -
261                                                           g_last_afioball_number);
262        update_evalcall_form(percentage);
263        log_msg(1, "set = %d", set_number);
264        retval +=
265            verify_an_afioball_from_CD(bkpinfo,
266                                       vfy_tball_fname(bkpinfo, mountpoint,
267                                                       set_number));
268    }
269    g_last_afioball_number = set_number - 1;
270    close_evalcall_form();
271    paranoid_free(tmp);
272    return (retval);
273}
274
275/**
276 * Verify all slices stored on the inserted CD (or a mounted ISO image).
277 * @param bkpinfo The backup information structure. Fields used:
278 * - @c compression_level
279 * - @c restore_path
280 * - @c use_lzo
281 * - @c zip_exe
282 * - @c zip_suffix
283 * @param mtpt The mountpoint the CD/DVD/ISO is mounted on.
284 * @return The number of differences (0 for perfect biggiefiles).
285 */
286int verify_all_slices_on_CD(struct s_bkpinfo *bkpinfo, char *mtpt)
287{
288
289    /*@ buffer ********************************************************** */
290    char *tmp;
291    char *mountpoint;
292//  char ca, cb;
293    char *command;
294    char *sz_exe;
295    static char *bufblkA = NULL;
296    static char *bufblkB = NULL;
297    const long maxbufsize = 65536L;
298    long currsizA = 0;
299    long currsizB = 0;
300    long j;
301
302    /*@ long ************************************************************ */
303    long bigfile_num = 0;
304    long slice_num = -1;
305    int res;
306
307    static FILE *forig = NULL;
308    static struct s_filename_and_lstat_info biggiestruct;
309    static long last_bigfile_num = -1;
310    static long last_slice_num = -1;
311    FILE *pin;
312    FILE *fin;
313    int retval = 0;
314//  long long outlen;
315
316    malloc_string(tmp);
317    malloc_string(mountpoint);
318    malloc_string(command);
319    malloc_string(sz_exe);
320    if (!bufblkA) {
321        if (!(bufblkA = malloc(maxbufsize))) {
322            fatal_error("Cannot malloc bufblkA");
323        }
324    }
325    if (!bufblkB) {
326        if (!(bufblkB = malloc(maxbufsize))) {
327            fatal_error("Cannot malloc bufblkB");
328        }
329    }
330
331    assert(bkpinfo != NULL);
332    assert_string_is_neither_NULL_nor_zerolength(mtpt);
333
334    if (bkpinfo->compression_level > 0) {
335        if (bkpinfo->use_lzo) {
336            strcpy(sz_exe, "lzop");
337        } else {
338            strcpy(sz_exe, "bzip2");
339        }
340    } else {
341        sz_exe[0] = '\0';
342    }
343
344    iamhere("before vsbf");
345    sprintf(tmp, "Verifying %s#%d's big files",
346            media_descriptor_string(bkpinfo->backup_media_type),
347            g_current_media_number);
348    open_evalcall_form(tmp);
349    iamhere("after vsbf");
350    sprintf(mountpoint, "%s/archives", mtpt);
351    if (last_bigfile_num == -1) {
352        bigfile_num = 0;
353        slice_num = 0;
354    } else if (slice_num == 0) {
355        bigfile_num = last_bigfile_num + 1;
356        slice_num = 0;
357    } else {
358        bigfile_num = last_bigfile_num;
359        slice_num = last_slice_num + 1;
360    }
361    while (does_file_exist
362           (slice_fname
363            (bigfile_num, slice_num, mountpoint, bkpinfo->zip_suffix))
364           ||
365           does_file_exist(slice_fname
366                           (bigfile_num, slice_num, mountpoint, ""))) {
367// handle slices until end of CD
368        if (slice_num == 0) {
369            log_msg(2, "ISO=%d  bigfile=%ld --START--",
370                    g_current_media_number, bigfile_num);
371            if (!
372                (fin =
373                 fopen(slice_fname(bigfile_num, slice_num, mountpoint, ""),
374                       "r"))) {
375                log_msg(2, "Cannot open bigfile's info file");
376            } else {
377                if (fread
378                    ((void *) &biggiestruct, 1, sizeof(biggiestruct),
379                     fin) < sizeof(biggiestruct)) {
380                    log_msg(2, "Unable to get biggiestruct");
381                }
382                paranoid_fclose(fin);
383            }
384            sprintf(tmp, "%s/%s", bkpinfo->restore_path,
385                    biggiestruct.filename);
386            log_msg(2, "Opening biggiefile #%ld - '%s'", bigfile_num, tmp);
387            if (!(forig = fopen(tmp, "r"))) {
388                log_msg(2, "Failed to open bigfile. Darn.");
389                retval++;
390            }
391            slice_num++;
392        } else if (does_file_exist
393                   (slice_fname(bigfile_num, slice_num, mountpoint, ""))) {
394            log_msg(2, "ISO=%d  bigfile=%ld ---END---",
395                    g_current_media_number, bigfile_num);
396            bigfile_num++;
397            paranoid_fclose(forig);
398            slice_num = 0;
399        } else {
400            log_msg(2, "ISO=%d  bigfile=%ld  slice=%ld  \r",
401                    g_current_media_number, bigfile_num, slice_num);
402            if (bkpinfo->compression_level > 0) {
403                sprintf(command, "cat %s | %s -dc 2>> %s",
404                        slice_fname(bigfile_num, slice_num, mountpoint,
405                                    bkpinfo->zip_suffix), sz_exe,
406                        MONDO_LOGFILE);
407            } else {
408                sprintf(command, "cat %s",
409                        slice_fname(bigfile_num, slice_num, mountpoint,
410                                    bkpinfo->zip_suffix));
411            }
412            if ((pin = popen(command, "r"))) {
413                res = 0;
414                while (!feof(pin)) {
415                    currsizA = fread(bufblkA, 1, maxbufsize, pin);
416                    if (currsizA <= 0) {
417                        break;
418                    }
419                    currsizB = fread(bufblkB, 1, currsizA, forig);
420                    if (currsizA != currsizB) {
421                        res++;
422                    } else {
423                        for (j = 0;
424                             j < currsizA && bufblkA[j] == bufblkB[j];
425                             j++);
426                        if (j < currsizA) {
427                            res++;
428                        }
429                    }
430                }
431                paranoid_pclose(pin);
432                if (res && !strncmp(biggiestruct.filename, " /dev/", 5)) {
433                    log_msg(3,
434                            "Ignoring differences between %s and live filesystem because it's a device and therefore the archives are stored via partimagehack, not dd.",
435                            biggiestruct.filename);
436                    log_msg(3,
437                            "If you really want verification for %s, please contact the devteam and offer an incentive.",
438                            biggiestruct.filename);
439                    res = 0;
440                }
441                if (res) {
442                    log_msg(0,
443                            "afio: \"%s\": Corrupt biggie file, says libmondo-archive.c",
444                            biggiestruct.filename);
445                    retval++;
446                }
447            }
448            slice_num++;
449        }
450    }
451    last_bigfile_num = bigfile_num;
452    last_slice_num = slice_num - 1;
453    if (last_slice_num < 0) {
454        last_bigfile_num--;
455    }
456    close_evalcall_form();
457    if (bufblkA) {
458        paranoid_free(bufblkA);
459    }
460    if (bufblkB) {
461        paranoid_free(bufblkB);
462    }
463    paranoid_free(tmp);
464    paranoid_free(command);
465    paranoid_free(sz_exe);
466    paranoid_free(mountpoint);
467    return (0);
468}
469
470
471
472
473
474
475/**
476 * Verify one afioball from the CD.
477 * You should be changed to the root directory (/) for this to work.
478 * @param bkpinfo The backup information structure. Fields used:
479 * - @c bkpinfo->use_lzo
480 * - @c bkpinfo->tmpdir
481 * - @c bkpinfo->zip_exe
482 * - @c bkpinfo->zip_suffix
483 * @param tarball_fname The filename of the afioball to verify.
484 * @return 0, always.
485 */
486int verify_a_tarball(struct s_bkpinfo *bkpinfo, char *tarball_fname)
487{
488    /*@ buffers ********************************************************* */
489    char *command;
490    char *outlog;
491    char *tmp;
492    //  char *p;
493
494    /*@ pointers ******************************************************* */
495    FILE *pin;
496
497    /*@ long *********************************************************** */
498    long diffs = 0;
499    /*  getcwd(old_pwd,MAX_STR_LEN-1); */
500
501
502    command = malloc(2000);
503    malloc_string(outlog);
504    malloc_string(tmp);
505    assert(bkpinfo != NULL);
506    assert_string_is_neither_NULL_nor_zerolength(tarball_fname);
507
508    log_it("Verifying fileset '%s'", tarball_fname);
509    /*  chdir("/"); */
510    sprintf(outlog, "%s/afio.log", bkpinfo->tmpdir);
511/* if programmer forgot to say which compression thingy to use then find out */
512    if (strstr(tarball_fname, ".lzo")
513        && strcmp(bkpinfo->zip_suffix, "lzo")) {
514        log_msg(2, "OK, I'm going to start using lzop.");
515        strcpy(bkpinfo->zip_exe, "lzop");
516        strcpy(bkpinfo->zip_suffix, "lzo");
517        bkpinfo->use_lzo = TRUE;
518    }
519    if (strstr(tarball_fname, ".bz2")
520        && strcmp(bkpinfo->zip_suffix, "bz2")) {
521        log_msg(2, "OK, I'm going to start using bzip2.");
522        strcpy(bkpinfo->zip_exe, "bzip2");
523        strcpy(bkpinfo->zip_suffix, "bz2");
524        bkpinfo->use_lzo = FALSE;
525    }
526    unlink(outlog);
527    if (strstr(tarball_fname, ".star")) {
528        bkpinfo->use_star = TRUE;
529        if (strstr(tarball_fname, ".bz2"))
530            sprintf(command,
531                    "star -diff diffopts=mode,size,data file=%s %s >> %s 2>> %s",
532                    tarball_fname,
533                    (strstr(tarball_fname, ".bz2")) ? "-bz" : " ", outlog,
534                    outlog);
535    } else {
536        bkpinfo->use_star = FALSE;
537        sprintf(command, "afio -r -P %s -Z %s >> %s 2>> %s",
538                bkpinfo->zip_exe, tarball_fname, outlog, outlog);
539    }
540    log_msg(6, "command=%s", command);
541    paranoid_system(command);
542    if (length_of_file(outlog) < 10) {
543        sprintf(command, "cat %s >> %s", outlog, MONDO_LOGFILE);
544    } else {
545        sprintf(command, "cat %s | cut -d':' -f%d | sort | uniq", outlog,
546                (bkpinfo->use_star) ? 1 : 2);
547        pin = popen(command, "r");
548        if (pin) {
549            for (fgets(tmp, MAX_STR_LEN, pin); !feof(pin);
550                 fgets(tmp, MAX_STR_LEN, pin)) {
551                if (bkpinfo->use_star) {
552                    if (!strstr(tmp, "diffopts=")) {
553                        while (strlen(tmp) > 0
554                               && tmp[strlen(tmp) - 1] < 32) {
555                            tmp[strlen(tmp) - 1] = '\0';
556                        }
557                        if (strchr(tmp, '/')) {
558                            if (!diffs) {
559                                log_msg(0, "'%s' - differences found",
560                                        tarball_fname);
561                            }
562                            log_msg(0, "star: /%s",
563                                    strip_afio_output_line(tmp));
564                            diffs++;
565                        }
566                    }
567                } else {
568                    if (!diffs) {
569                        log_msg(0, "'%s' - differences found",
570                                tarball_fname);
571                    }
572                    log_msg(0, "afio: /%s", strip_afio_output_line(tmp));
573                    diffs++;
574                }
575            }
576            paranoid_pclose(pin);
577        } else {
578            log_OS_error(command);
579        }
580    }
581    /*  chdir(old_pwd); */
582    //  sprintf (tmp, "cat %s | uniq -u >> %s", "/tmp/mondo-verify.err", MONDO_LOGFILE);
583    //  paranoid_system (tmp);
584    //  unlink ("/tmp/mondo-verify.err");
585    paranoid_free(command);
586    paranoid_free(outlog);
587    paranoid_free(tmp);
588    return (0);
589}
590
591
592
593
594
595
596/**
597 * Verify one afioball from the CD.
598 * Checks for existence (calls fatal_error() if it does not exist) and
599 * then calls verify_an_afioball().
600 * @param bkpinfo The backup information structure. Passed to verify_an_afioball().
601 * @param tarball_fname The filename of the afioball to verify.
602 * @return The return value of verify_an_afioball().
603 * @see verify_an_afioball
604 */
605int
606verify_an_afioball_from_CD(struct s_bkpinfo *bkpinfo, char *tarball_fname)
607{
608
609    /*@ int ************************************************************* */
610    int res = 0;
611
612    assert(bkpinfo != NULL);
613    assert_string_is_neither_NULL_nor_zerolength(tarball_fname);
614
615    log_msg(1, "Verifying %s", tarball_fname);
616    if (!does_file_exist(tarball_fname)) {
617        fatal_error("Cannot verify nonexistent afioball");
618    }
619    res = verify_a_tarball(bkpinfo, tarball_fname);
620    return (res);
621}
622
623
624/**
625 * Verify one afioball from the opened tape/CD stream.
626 * Copies the file from tape to tmpdir and then calls verify_an_afioball().
627 * @param bkpinfo The backup information structure. Passed to verify_an_afioball().
628 * @param orig_fname The original filename of the afioball to verify.
629 * @param size The size of the afioball to verify.
630 * @return The return value of verify_an_afioball().
631 * @see verify_an_afioball
632 */
633int
634verify_an_afioball_from_stream(struct s_bkpinfo *bkpinfo, char *orig_fname,
635                               long long size)
636{
637
638    /*@ int ************************************************************** */
639    int retval = 0;
640    int res = 0;
641
642    /*@ buffers ********************************************************** */
643    char *tmp;
644    char *tarball_fname;
645
646    /*@ pointers ********************************************************* */
647    char *p;
648
649    malloc_string(tmp);
650    malloc_string(tarball_fname);
651    assert(bkpinfo != NULL);
652    assert_string_is_neither_NULL_nor_zerolength(orig_fname);
653
654    p = strrchr(orig_fname, '/');
655    if (!p) {
656        p = orig_fname;
657    } else {
658        p++;
659    }
660    sprintf(tmp, "mkdir -p %s/tmpfs", bkpinfo->tmpdir);
661    paranoid_system(tmp);
662    sprintf(tarball_fname, "%s/tmpfs/temporary-%s", bkpinfo->tmpdir, p);
663    sprintf(tmp, "Temporarily copying file from tape to '%s'",
664            tarball_fname);
665/*  log_it(tmp); */
666    read_file_from_stream_to_file(bkpinfo, tarball_fname, size);
667    res = verify_a_tarball(bkpinfo, tarball_fname);
668    if (res) {
669        sprintf(tmp,
670                "Afioball '%s' no longer matches your live filesystem", p);
671        log_msg(0, tmp);
672        retval++;
673    }
674    unlink(tarball_fname);
675    paranoid_free(tmp);
676    paranoid_free(tarball_fname);
677    return (retval);
678}
679
680
681/**
682 * Verify one biggiefile form the opened tape/CD stream.
683 * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
684 * @param biggie_fname The filename of the biggiefile to verify.
685 * @param size The size in bytes of said biggiefile.
686 * @return 0 for success (even if the file doesn't match); nonzero for a tape error.
687 */
688int
689verify_a_biggiefile_from_stream(struct s_bkpinfo *bkpinfo,
690                                char *biggie_fname, long long size)
691{
692
693    /*@ int ************************************************************* */
694    int retval = 0;
695    int res = 0;
696    int current_slice_number = 0;
697    int ctrl_chr = '\0';
698
699    /*@ char ************************************************************ */
700    char *test_file;
701    char *biggie_cksum;
702    char *orig_cksum;
703    char *tmp;
704    char *slice_fnam;
705
706    /*@ pointers ******************************************************** */
707    char *p;
708
709    /*@ long long ******************************************************* */
710    long long slice_siz;
711
712    malloc_string(test_file);
713    malloc_string(biggie_cksum);
714    malloc_string(orig_cksum);
715    malloc_string(tmp);
716    malloc_string(slice_fnam);
717    assert(bkpinfo != NULL);
718    assert_string_is_neither_NULL_nor_zerolength(biggie_fname);
719
720    p = strrchr(biggie_fname, '/');
721    if (!p) {
722        p = biggie_fname;
723    } else {
724        p++;
725    }
726    sprintf(test_file, "%s/temporary-%s", bkpinfo->tmpdir, p);
727    sprintf(tmp,
728            "Temporarily copying biggiefile %s's slices from tape to '%s'",
729            p, test_file);
730/*  log_it(tmp); */
731    for (res =
732         read_header_block_from_stream(&slice_siz, slice_fnam, &ctrl_chr);
733         ctrl_chr != BLK_STOP_A_BIGGIE;
734         res =
735         read_header_block_from_stream(&slice_siz, slice_fnam,
736                                       &ctrl_chr)) {
737        if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
738            wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
739        }
740        res = read_file_from_stream_to_file(bkpinfo, test_file, slice_siz);
741        unlink(test_file);
742        res =
743            read_header_block_from_stream(&slice_siz, slice_fnam,
744                                          &ctrl_chr);
745        if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
746            log_msg(2, "test_file = %s", test_file);
747            wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
748        }
749        current_slice_number++;
750        retval += res;
751    }
752    strcpy(biggie_cksum, slice_fnam);
753    if (biggie_cksum[0] != '\0') {
754        strcpy(orig_cksum, calc_checksum_of_file(biggie_fname));
755        if (strcmp(biggie_cksum, orig_cksum)) {
756            sprintf(tmp, "orig cksum=%s; curr cksum=%s", biggie_cksum,
757                    orig_cksum);
758            log_msg(2, tmp);
759            sprintf(tmp, "%s has changed on live filesystem",
760                    biggie_fname);
761            log_to_screen(tmp);
762            sprintf(tmp, "echo \"%s\" >> /tmp/biggies.changed",
763                    biggie_fname);
764            system(tmp);
765        }
766    }
767    paranoid_free(test_file);
768    paranoid_free(biggie_cksum);
769    paranoid_free(orig_cksum);
770    paranoid_free(tmp);
771    paranoid_free(slice_fnam);
772    return (retval);
773}
774
775
776/**
777 * Verify all afioballs from the opened tape/CD stream.
778 * @param bkpinfo The backup information structure. Fields used:
779 * - @c bkpinfo->restore_path
780 * - @c bkpinfo->tmpdir
781 *
782 * @return 0 for success (even if there are differences); nonzero for a tape error.
783 */
784int verify_afioballs_from_stream(struct s_bkpinfo *bkpinfo)
785{
786    /*@ int ********************************************************** */
787    int retval = 0;
788    int res = 0;
789    long current_afioball_number = 0;
790    int ctrl_chr = 0;
791    int total_afioballs = 0;
792
793    /*@ buffers ***************************************************** */
794    char *tmp;
795    char *fname;
796    char *curr_xattr_list_fname;
797    char *curr_acl_list_fname;
798
799    /*@ long long *************************************************** */
800    long long size = 0;
801
802    assert(bkpinfo != NULL);
803    malloc_string(tmp);
804    malloc_string(fname);
805    malloc_string(curr_xattr_list_fname);
806    malloc_string(curr_acl_list_fname);
807
808    sprintf(curr_xattr_list_fname, XATTR_BIGGLST_FNAME_RAW_SZ,
809            bkpinfo->tmpdir);
810    sprintf(curr_acl_list_fname, ACL_BIGGLST_FNAME_RAW_SZ,
811            bkpinfo->tmpdir);
812    log_to_screen("Verifying regular archives on tape");
813    total_afioballs = get_last_filelist_number(bkpinfo) + 1;
814    open_progress_form("Verifying filesystem",
815                       "I am verifying archives against your live filesystem now.",
816                       "Please wait. This may take a couple of hours.", "",
817                       total_afioballs);
818    res = read_header_block_from_stream(&size, fname, &ctrl_chr);
819    if (ctrl_chr != BLK_START_AFIOBALLS) {
820        iamhere("YOU SHOULD NOT GET HERE");
821        iamhere("Grabbing the EXAT files");
822        if (ctrl_chr == BLK_START_EXTENDED_ATTRIBUTES) {
823            res =
824                read_EXAT_files_from_tape(bkpinfo, &size, fname, &ctrl_chr,
825                                          curr_xattr_list_fname,
826                                          curr_acl_list_fname);
827        }
828    }
829    if (ctrl_chr != BLK_START_AFIOBALLS) {
830        wrong_marker(BLK_START_AFIOBALLS, ctrl_chr);
831    }
832
833    for (res = read_header_block_from_stream(&size, fname, &ctrl_chr);
834         ctrl_chr != BLK_STOP_AFIOBALLS;
835         res = read_header_block_from_stream(&size, fname, &ctrl_chr)) {
836        sprintf(curr_xattr_list_fname, XATTR_LIST_FNAME_RAW_SZ,
837                bkpinfo->tmpdir, current_afioball_number);
838        sprintf(curr_acl_list_fname, ACL_LIST_FNAME_RAW_SZ,
839                bkpinfo->tmpdir, current_afioball_number);
840        if (ctrl_chr == BLK_START_EXTENDED_ATTRIBUTES) {
841            iamhere("Reading EXAT files from tape");
842            res =
843                read_EXAT_files_from_tape(bkpinfo, &size, fname, &ctrl_chr,
844                                          curr_xattr_list_fname,
845                                          curr_acl_list_fname);
846        }
847        if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
848            wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
849        }
850        sprintf(tmp, "Verifying fileset #%ld", current_afioball_number);
851        /*log_it(tmp); */
852        update_progress_form(tmp);
853        res = verify_an_afioball_from_stream(bkpinfo, fname, size);
854        if (res) {
855            sprintf(tmp, "Afioball %ld differs from live filesystem",
856                    current_afioball_number);
857            log_to_screen(tmp);
858        }
859        retval += res;
860        current_afioball_number++;
861        g_current_progress++;
862        res = read_header_block_from_stream(&size, fname, &ctrl_chr);
863        if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
864            wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
865        }
866    }
867    log_msg(1, "All done with afioballs");
868    close_progress_form();
869    paranoid_free(tmp);
870    paranoid_free(fname);
871    paranoid_free(curr_xattr_list_fname);
872    paranoid_free(curr_acl_list_fname);
873    return (retval);
874}
875
876/**
877 * Verify all biggiefiles on the opened CD/tape stream.
878 * @param bkpinfo The backup information structure. Fields used:
879 * - @c bkpinfo->restore_path
880 * - @c bkpinfo->tmpdir
881 *
882 * @return 0 for success (even if there are differences); nonzero for a tape error.
883 */
884int verify_biggiefiles_from_stream(struct s_bkpinfo *bkpinfo)
885{
886
887    /*@ int ************************************************************ */
888    int retval = 0;
889    int res = 0;
890    int ctrl_chr = 0;
891
892    /*@ long *********************************************************** */
893    long noof_biggiefiles = 0;
894    long current_biggiefile_number = 0;
895
896    /*@ buffers ******************************************************** */
897    char *tmp;
898    char *orig_fname, *logical_fname;
899    char *comment;
900    char *curr_xattr_list_fname;
901    char *curr_acl_list_fname;
902    /*@ pointers ******************************************************* */
903    char *p;
904
905    /*@ long long size ************************************************* */
906    long long size = 0;
907
908    assert(bkpinfo != NULL);
909    malloc_string(tmp);
910    malloc_string(orig_fname);
911    malloc_string(logical_fname);
912    malloc_string(comment);
913    malloc_string(curr_xattr_list_fname);
914    malloc_string(curr_acl_list_fname);
915
916    sprintf(curr_xattr_list_fname, XATTR_BIGGLST_FNAME_RAW_SZ,
917            bkpinfo->tmpdir);
918    sprintf(curr_acl_list_fname, ACL_BIGGLST_FNAME_RAW_SZ,
919            bkpinfo->tmpdir);
920    sprintf(comment, "Verifying all bigfiles.");
921    log_to_screen(comment);
922    sprintf(tmp, "%s/biggielist.txt", bkpinfo->tmpdir);
923//  noof_biggiefiles = count_lines_in_file (tmp); // pointless
924    res = read_header_block_from_stream(&size, orig_fname, &ctrl_chr);
925    if (ctrl_chr != BLK_START_BIGGIEFILES) {
926        if (ctrl_chr == BLK_START_EXTENDED_ATTRIBUTES) {
927            iamhere("Grabbing the EXAT biggiefiles");
928            res =
929                read_EXAT_files_from_tape(bkpinfo, &size, orig_fname,
930                                          &ctrl_chr, curr_xattr_list_fname,
931                                          curr_acl_list_fname);
932        }
933    }
934    if (ctrl_chr != BLK_START_BIGGIEFILES) {
935        wrong_marker(BLK_START_BIGGIEFILES, ctrl_chr);
936    }
937    noof_biggiefiles = (long) size;
938    log_msg(1, "noof_biggiefiles = %ld", noof_biggiefiles);
939    open_progress_form("Verifying big files", comment,
940                       "Please wait. This may take some time.", "",
941                       noof_biggiefiles);
942    for (res = read_header_block_from_stream(&size, orig_fname, &ctrl_chr);
943         ctrl_chr != BLK_STOP_BIGGIEFILES;
944         res = read_header_block_from_stream(&size, orig_fname, &ctrl_chr))
945    {
946        if (ctrl_chr != BLK_START_A_NORMBIGGIE
947            && ctrl_chr != BLK_START_A_PIHBIGGIE) {
948            wrong_marker(BLK_START_A_NORMBIGGIE, ctrl_chr);
949        }
950        p = strrchr(orig_fname, '/');
951        if (!p) {
952            p = orig_fname;
953        } else {
954            p++;
955        }
956        sprintf(comment, "Verifying bigfile #%ld (%ld K)",
957                current_biggiefile_number, (long) size >> 10);
958        update_progress_form(comment);
959        sprintf(logical_fname, "%s/%s", bkpinfo->restore_path, orig_fname);
960        res =
961            verify_a_biggiefile_from_stream(bkpinfo, logical_fname, size);
962        retval += res;
963        current_biggiefile_number++;
964        g_current_progress++;
965    }
966    close_progress_form();
967    paranoid_free(orig_fname);
968    paranoid_free(logical_fname);
969    paranoid_free(curr_xattr_list_fname);
970    paranoid_free(curr_acl_list_fname);
971    paranoid_free(comment);
972    paranoid_free(tmp);
973    return (retval);
974}
975
976/* @} - end of LLverifyGroup */
977
978
979/**
980 * Verify the CD indicated by @c g_current_media_number.
981 * @param bkpinfo The backup information structure. Fields used:
982 * - @c bkpinfo->isodir
983 * - @c bkpinfo->prefix
984 * - @c bkpinfo->manual_cd_tray
985 * - @c bkpinfo->media_device
986 * - @c bkpinfo->nfs_remote_dir
987 * - @c bkpinfo->tmpdir
988 * - @c bkpinfo->verify_data
989 *
990 * @return 0 for success (even if differences are found), nonzero for failure.
991 * @ingroup verifyGroup
992 */
993int verify_cd_image(struct s_bkpinfo *bkpinfo)
994{
995
996    /*@ int ************************************************************ */
997    int retval = 0;
998
999    /*@ buffers ******************************************************** */
1000    char *mountpoint;
1001    char *command;
1002    char *tmp;
1003    char *fname;
1004#ifdef __FreeBSD__
1005    char mdd[32];
1006    char *mddevice = mdd;
1007    int ret = 0;
1008    int vndev = 2;
1009#else
1010//skip
1011#endif
1012
1013    command = malloc(2000);
1014    malloc_string(mountpoint);
1015    malloc_string(tmp);
1016    malloc_string(fname);
1017
1018    assert(bkpinfo != NULL);
1019
1020    sprintf(mountpoint, "%s/cdrom", bkpinfo->tmpdir);
1021    sprintf(fname, "%s/%s/%s-%d.iso", bkpinfo->nfs_remote_dir,
1022            bkpinfo->isodir, bkpinfo->prefix, g_current_media_number);
1023
1024    mkdir(mountpoint, 1777);
1025    sync();
1026    if (!does_file_exist(fname)) {
1027        sprintf(tmp,
1028                "%s not found; assuming you backed up to CD; verifying CD...",
1029                fname);
1030        log_msg(2, tmp);
1031        if (bkpinfo->manual_cd_tray) {
1032            popup_and_OK("Please push CD tray closed.");
1033        }
1034        if (find_and_mount_actual_cd(bkpinfo, mountpoint)) {
1035            log_to_screen("failed to mount actual CD");
1036            return (1);
1037        }
1038    } else {
1039        sprintf(tmp, "%s found; verifying ISO...", fname);
1040#ifdef __FreeBSD__
1041        ret = 0;
1042        vndev = 2;
1043        mddevice = make_vn(fname);
1044        if (ret) {
1045            sprintf(tmp, "make_vn of %s failed; unable to verify ISO\n",
1046                    fname);
1047            log_to_screen(tmp);
1048            return (1);
1049        }
1050        sprintf(command, "mount_cd9660 %s %s", mddevice, mountpoint);
1051#else
1052        sprintf(command, "mount -o loop,ro -t iso9660 %s %s", fname,
1053                mountpoint);
1054#endif
1055        if (run_program_and_log_output(command, FALSE)) {
1056            sprintf(tmp, "%s failed; unable to mount ISO image\n",
1057                    command);
1058            log_to_screen(tmp);
1059            return (1);
1060        }
1061    }
1062    log_msg(2, "OK, I've mounted the ISO/CD\n");
1063    sprintf(tmp, "%s/archives/NOT-THE-LAST", mountpoint);
1064    if (!does_file_exist(tmp)) {
1065        log_msg
1066            (2,
1067             "This is the last CD. I am therefore setting bkpinfo->verify_data to FALSE.");
1068        bkpinfo->verify_data = FALSE;
1069/*
1070   (a) It's an easy way to tell the calling subroutine that we've finished &
1071   there are no more CD's to be verified; (b) It stops the post-backup verifier
1072   from running after the per-CD verifier has run too.
1073*/
1074    }
1075    verify_afioballs_on_CD(bkpinfo, mountpoint);
1076    iamhere("before verify_all_slices");
1077    verify_all_slices_on_CD(bkpinfo, mountpoint);
1078
1079#ifdef __FreeBSD__
1080    ret = 0;
1081    sprintf(command, "umount %s", mountpoint);
1082    ret += system(command);
1083    ret += kick_vn(mddevice);
1084    if (ret)
1085#else
1086    sprintf(command, "umount %s", mountpoint);
1087    if (system(command))
1088#endif
1089    {
1090        sprintf(tmp, "%s failed; unable to unmount ISO image\n", command);
1091        log_to_screen(tmp);
1092        retval++;
1093    } else {
1094        log_msg(2, "OK, I've unmounted the ISO file\n");
1095    }
1096    if (!does_file_exist(fname)) {
1097        sprintf(command, "umount %s", bkpinfo->media_device);
1098        run_program_and_log_output(command, 2);
1099        if (!bkpinfo->please_dont_eject
1100            && eject_device(bkpinfo->media_device)) {
1101            log_msg(2, "Failed to eject CD-ROM drive");
1102        }
1103    }
1104    paranoid_free(command);
1105    paranoid_free(mountpoint);
1106    paranoid_free(tmp);
1107    paranoid_free(fname);
1108    return (retval);
1109}
1110
1111/**
1112 * Verify all backups on tape.
1113 * This should be done after the backup process has already closed the tape.
1114 * @param bkpinfo The backup information structure. Passed to various helper functions.
1115 * @return 0 for success (even if thee were differences), nonzero for failure.
1116 * @ingroup verifyGroup
1117 */
1118int verify_tape_backups(struct s_bkpinfo *bkpinfo)
1119{
1120
1121    /*@ int ************************************************************ */
1122    int retval = 0;
1123
1124    /*@ buffers ******************************************************** */
1125    char tmp[MAX_STR_LEN];
1126    char changed_files_fname[MAX_STR_LEN];
1127
1128    /*@ long *********************************************************** */
1129    long diffs = 0;
1130
1131    assert(bkpinfo != NULL);
1132
1133    log_msg(3, "verify_tape_backups --- starting");
1134    log_to_screen("Verifying backups");
1135    openin_tape(bkpinfo);
1136/* verify archives themselves */
1137    retval += verify_afioballs_from_stream(bkpinfo);
1138    retval += verify_biggiefiles_from_stream(bkpinfo);
1139/* find the final blocks */
1140    paranoid_system("sync");
1141    sleep(2);
1142    closein_tape(bkpinfo);
1143/* close tape; exit */
1144//  fclose(g_tape_stream); <-- not needed; is handled by closein_tape()
1145    paranoid_system
1146        ("rm -f /tmp/biggies.changed /tmp/changed.files.[0-9]* 2> /dev/null");
1147    sprintf(changed_files_fname, "/tmp/changed.files.%d",
1148            (int) (random() % 32767));
1149    sprintf(tmp,
1150            "cat %s | grep -x \"%s:.*\" | cut -d'\"' -f2 | sort -u | awk '{print \"/\"$0;};' | tr -s '/' '/' | grep -v \"(total of\" | grep -v \"incheckentry.*xwait\" | grep -vx \"/afio:.*\" | grep -vx \"dev/.*\"  > %s",
1151            MONDO_LOGFILE, (bkpinfo->use_star) ? "star" : "afio",
1152            changed_files_fname);
1153    log_msg(2, "Running command to derive list of changed files");
1154    log_msg(2, tmp);
1155    if (system(tmp)) {
1156        if (does_file_exist(changed_files_fname)
1157            && length_of_file(changed_files_fname) > 2) {
1158            log_to_screen
1159                ("Warning - unable to check logfile to derive list of changed files");
1160        } else {
1161            log_to_screen
1162                ("No differences found. Therefore, no 'changed.files' text file.");
1163        }
1164    }
1165    sprintf(tmp, "cat /tmp/biggies.changed >> %s", changed_files_fname);
1166    paranoid_system(tmp);
1167
1168    diffs = count_lines_in_file(changed_files_fname);
1169    if (diffs > 0) {
1170        sprintf(tmp, "cp -f %s %s", changed_files_fname,
1171                "/tmp/changed.files");
1172        run_program_and_log_output(tmp, FALSE);
1173        sprintf(tmp,
1174                "%ld files differed from live filesystem; type less %s or less %s to see",
1175                diffs, changed_files_fname, "/tmp/changed.files");
1176        log_msg(0, tmp);
1177        log_to_screen
1178            ("See /tmp/changed.files for a list of nonmatching files.");
1179        log_to_screen
1180            ("The files probably changed on filesystem, not on backup media.");
1181        //      retval++;
1182    }
1183    return (retval);
1184}
1185
1186
1187
1188/**
1189 * Generate the filename of a tarball to verify.
1190 * @param bkpinfo The backup information structure. @c bkpinfo->zip_suffix is the only field used.
1191 * @param mountpoint The directory where the CD/DVD/ISO is mounted.
1192 * @param setno The afioball number to get the location of.
1193 * @return The absolute path to the afioball.
1194 * @note The returned string points to static data that will be overwritten with each call.
1195 * @ingroup stringGroup
1196 */
1197char *vfy_tball_fname(struct s_bkpinfo *bkpinfo, char *mountpoint,
1198                      int setno)
1199{
1200    /*@ buffers ******************************************************* */
1201    static char output[MAX_STR_LEN];
1202
1203    assert(bkpinfo != NULL);
1204    assert_string_is_neither_NULL_nor_zerolength(mountpoint);
1205    sprintf(output, "%s/archives/%d.star.%s", mountpoint, setno,
1206            bkpinfo->zip_suffix);
1207    if (!does_file_exist(output)) {
1208        sprintf(output, "%s/archives/%d.afio.%s", mountpoint, setno,
1209                bkpinfo->zip_suffix);
1210    }
1211    return (output);
1212}
Note: See TracBrowser for help on using the repository browser.