source: MondoRescue/branches/2.06/mondo/mondo/common/libmondo-verify.c @ 273

Last change on this file since 273 was 273, checked in by bcornec, 15 years ago

Patches from Sébastien Aperghis-Tramoni <maddingue@…>

replace several occurences of "cat .. | grep .."
or with similar commands that accept filenames as arguments.
+ some sort | uniq replaced by sort -u
  • 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 273 2006-01-03 15:09:12Z 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 273 2006-01-03 15:09:12Z 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       "grep \"afio: \" %s | awk '{j=substr($0,8); i=index(j,\": \");printf \"/%%s\\n\",substr(j,1,i-2);}' | sort -u | 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            "grep \"afio: \" %s | 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            "grep \"star: \" %s | 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            "sort %s %s %s | 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, "%s -dc %s 2>> %s",
404                        sz_exe,
405                        slice_fname(bigfile_num, slice_num, mountpoint,
406                                    bkpinfo->zip_suffix),
407                        MONDO_LOGFILE);
408            } else {
409                sprintf(command, "cat %s",
410                        slice_fname(bigfile_num, slice_num, mountpoint,
411                                    bkpinfo->zip_suffix));
412            }
413            if ((pin = popen(command, "r"))) {
414                res = 0;
415                while (!feof(pin)) {
416                    currsizA = fread(bufblkA, 1, maxbufsize, pin);
417                    if (currsizA <= 0) {
418                        break;
419                    }
420                    currsizB = fread(bufblkB, 1, currsizA, forig);
421                    if (currsizA != currsizB) {
422                        res++;
423                    } else {
424                        for (j = 0;
425                             j < currsizA && bufblkA[j] == bufblkB[j];
426                             j++);
427                        if (j < currsizA) {
428                            res++;
429                        }
430                    }
431                }
432                paranoid_pclose(pin);
433                if (res && !strncmp(biggiestruct.filename, " /dev/", 5)) {
434                    log_msg(3,
435                            "Ignoring differences between %s and live filesystem because it's a device and therefore the archives are stored via partimagehack, not dd.",
436                            biggiestruct.filename);
437                    log_msg(3,
438                            "If you really want verification for %s, please contact the devteam and offer an incentive.",
439                            biggiestruct.filename);
440                    res = 0;
441                }
442                if (res) {
443                    log_msg(0,
444                            "afio: \"%s\": Corrupt biggie file, says libmondo-archive.c",
445                            biggiestruct.filename);
446                    retval++;
447                }
448            }
449            slice_num++;
450        }
451    }
452    last_bigfile_num = bigfile_num;
453    last_slice_num = slice_num - 1;
454    if (last_slice_num < 0) {
455        last_bigfile_num--;
456    }
457    close_evalcall_form();
458    if (bufblkA) {
459        paranoid_free(bufblkA);
460    }
461    if (bufblkB) {
462        paranoid_free(bufblkB);
463    }
464    paranoid_free(tmp);
465    paranoid_free(command);
466    paranoid_free(sz_exe);
467    paranoid_free(mountpoint);
468    return (0);
469}
470
471
472
473
474
475
476/**
477 * Verify one afioball from the CD.
478 * You should be changed to the root directory (/) for this to work.
479 * @param bkpinfo The backup information structure. Fields used:
480 * - @c bkpinfo->use_lzo
481 * - @c bkpinfo->tmpdir
482 * - @c bkpinfo->zip_exe
483 * - @c bkpinfo->zip_suffix
484 * @param tarball_fname The filename of the afioball to verify.
485 * @return 0, always.
486 */
487int verify_a_tarball(struct s_bkpinfo *bkpinfo, char *tarball_fname)
488{
489    /*@ buffers ********************************************************* */
490    char *command;
491    char *outlog;
492    char *tmp;
493    //  char *p;
494
495    /*@ pointers ******************************************************* */
496    FILE *pin;
497
498    /*@ long *********************************************************** */
499    long diffs = 0;
500    /*  getcwd(old_pwd,MAX_STR_LEN-1); */
501
502
503    command = malloc(2000);
504    malloc_string(outlog);
505    malloc_string(tmp);
506    assert(bkpinfo != NULL);
507    assert_string_is_neither_NULL_nor_zerolength(tarball_fname);
508
509    log_it("Verifying fileset '%s'", tarball_fname);
510    /*  chdir("/"); */
511    sprintf(outlog, "%s/afio.log", bkpinfo->tmpdir);
512/* if programmer forgot to say which compression thingy to use then find out */
513    if (strstr(tarball_fname, ".lzo")
514        && strcmp(bkpinfo->zip_suffix, "lzo")) {
515        log_msg(2, "OK, I'm going to start using lzop.");
516        strcpy(bkpinfo->zip_exe, "lzop");
517        strcpy(bkpinfo->zip_suffix, "lzo");
518        bkpinfo->use_lzo = TRUE;
519    }
520    if (strstr(tarball_fname, ".bz2")
521        && strcmp(bkpinfo->zip_suffix, "bz2")) {
522        log_msg(2, "OK, I'm going to start using bzip2.");
523        strcpy(bkpinfo->zip_exe, "bzip2");
524        strcpy(bkpinfo->zip_suffix, "bz2");
525        bkpinfo->use_lzo = FALSE;
526    }
527    unlink(outlog);
528    if (strstr(tarball_fname, ".star")) {
529        bkpinfo->use_star = TRUE;
530        if (strstr(tarball_fname, ".bz2"))
531            sprintf(command,
532                    "star -diff diffopts=mode,size,data file=%s %s >> %s 2>> %s",
533                    tarball_fname,
534                    (strstr(tarball_fname, ".bz2")) ? "-bz" : " ", outlog,
535                    outlog);
536    } else {
537        bkpinfo->use_star = FALSE;
538        sprintf(command, "afio -r -P %s -Z %s >> %s 2>> %s",
539                bkpinfo->zip_exe, tarball_fname, outlog, outlog);
540    }
541    log_msg(6, "command=%s", command);
542    paranoid_system(command);
543    if (length_of_file(outlog) < 10) {
544        sprintf(command, "cat %s >> %s", outlog, MONDO_LOGFILE);
545    } else {
546        sprintf(command, "cut -d: -f%d %s | sort -u",
547                (bkpinfo->use_star) ? 1 : 2, outlog);
548        pin = popen(command, "r");
549        if (pin) {
550            for (fgets(tmp, MAX_STR_LEN, pin); !feof(pin);
551                 fgets(tmp, MAX_STR_LEN, pin)) {
552                if (bkpinfo->use_star) {
553                    if (!strstr(tmp, "diffopts=")) {
554                        while (strlen(tmp) > 0
555                               && tmp[strlen(tmp) - 1] < 32) {
556                            tmp[strlen(tmp) - 1] = '\0';
557                        }
558                        if (strchr(tmp, '/')) {
559                            if (!diffs) {
560                                log_msg(0, "'%s' - differences found",
561                                        tarball_fname);
562                            }
563                            log_msg(0, "star: /%s",
564                                    strip_afio_output_line(tmp));
565                            diffs++;
566                        }
567                    }
568                } else {
569                    if (!diffs) {
570                        log_msg(0, "'%s' - differences found",
571                                tarball_fname);
572                    }
573                    log_msg(0, "afio: /%s", strip_afio_output_line(tmp));
574                    diffs++;
575                }
576            }
577            paranoid_pclose(pin);
578        } else {
579            log_OS_error(command);
580        }
581    }
582    /*  chdir(old_pwd); */
583    //  sprintf (tmp, "uniq -u %s >> %s", "/tmp/mondo-verify.err", MONDO_LOGFILE);
584    //  paranoid_system (tmp);
585    //  unlink ("/tmp/mondo-verify.err");
586    paranoid_free(command);
587    paranoid_free(outlog);
588    paranoid_free(tmp);
589    return (0);
590}
591
592
593
594
595
596
597/**
598 * Verify one afioball from the CD.
599 * Checks for existence (calls fatal_error() if it does not exist) and
600 * then calls verify_an_afioball().
601 * @param bkpinfo The backup information structure. Passed to verify_an_afioball().
602 * @param tarball_fname The filename of the afioball to verify.
603 * @return The return value of verify_an_afioball().
604 * @see verify_an_afioball
605 */
606int
607verify_an_afioball_from_CD(struct s_bkpinfo *bkpinfo, char *tarball_fname)
608{
609
610    /*@ int ************************************************************* */
611    int res = 0;
612
613    assert(bkpinfo != NULL);
614    assert_string_is_neither_NULL_nor_zerolength(tarball_fname);
615
616    log_msg(1, "Verifying %s", tarball_fname);
617    if (!does_file_exist(tarball_fname)) {
618        fatal_error("Cannot verify nonexistent afioball");
619    }
620    res = verify_a_tarball(bkpinfo, tarball_fname);
621    return (res);
622}
623
624
625/**
626 * Verify one afioball from the opened tape/CD stream.
627 * Copies the file from tape to tmpdir and then calls verify_an_afioball().
628 * @param bkpinfo The backup information structure. Passed to verify_an_afioball().
629 * @param orig_fname The original filename of the afioball to verify.
630 * @param size The size of the afioball to verify.
631 * @return The return value of verify_an_afioball().
632 * @see verify_an_afioball
633 */
634int
635verify_an_afioball_from_stream(struct s_bkpinfo *bkpinfo, char *orig_fname,
636                               long long size)
637{
638
639    /*@ int ************************************************************** */
640    int retval = 0;
641    int res = 0;
642
643    /*@ buffers ********************************************************** */
644    char *tmp;
645    char *tarball_fname;
646
647    /*@ pointers ********************************************************* */
648    char *p;
649
650    malloc_string(tmp);
651    malloc_string(tarball_fname);
652    assert(bkpinfo != NULL);
653    assert_string_is_neither_NULL_nor_zerolength(orig_fname);
654
655    p = strrchr(orig_fname, '/');
656    if (!p) {
657        p = orig_fname;
658    } else {
659        p++;
660    }
661    sprintf(tmp, "mkdir -p %s/tmpfs", bkpinfo->tmpdir);
662    paranoid_system(tmp);
663    sprintf(tarball_fname, "%s/tmpfs/temporary-%s", bkpinfo->tmpdir, p);
664    sprintf(tmp, "Temporarily copying file from tape to '%s'",
665            tarball_fname);
666/*  log_it(tmp); */
667    read_file_from_stream_to_file(bkpinfo, tarball_fname, size);
668    res = verify_a_tarball(bkpinfo, tarball_fname);
669    if (res) {
670        sprintf(tmp,
671                "Afioball '%s' no longer matches your live filesystem", p);
672        log_msg(0, tmp);
673        retval++;
674    }
675    unlink(tarball_fname);
676    paranoid_free(tmp);
677    paranoid_free(tarball_fname);
678    return (retval);
679}
680
681
682/**
683 * Verify one biggiefile form the opened tape/CD stream.
684 * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
685 * @param biggie_fname The filename of the biggiefile to verify.
686 * @param size The size in bytes of said biggiefile.
687 * @return 0 for success (even if the file doesn't match); nonzero for a tape error.
688 */
689int
690verify_a_biggiefile_from_stream(struct s_bkpinfo *bkpinfo,
691                                char *biggie_fname, long long size)
692{
693
694    /*@ int ************************************************************* */
695    int retval = 0;
696    int res = 0;
697    int current_slice_number = 0;
698    int ctrl_chr = '\0';
699
700    /*@ char ************************************************************ */
701    char *test_file;
702    char *biggie_cksum;
703    char *orig_cksum;
704    char *tmp;
705    char *slice_fnam;
706
707    /*@ pointers ******************************************************** */
708    char *p;
709
710    /*@ long long ******************************************************* */
711    long long slice_siz;
712
713    malloc_string(test_file);
714    malloc_string(biggie_cksum);
715    malloc_string(orig_cksum);
716    malloc_string(tmp);
717    malloc_string(slice_fnam);
718    assert(bkpinfo != NULL);
719    assert_string_is_neither_NULL_nor_zerolength(biggie_fname);
720
721    p = strrchr(biggie_fname, '/');
722    if (!p) {
723        p = biggie_fname;
724    } else {
725        p++;
726    }
727    sprintf(test_file, "%s/temporary-%s", bkpinfo->tmpdir, p);
728    sprintf(tmp,
729            "Temporarily copying biggiefile %s's slices from tape to '%s'",
730            p, test_file);
731/*  log_it(tmp); */
732    for (res =
733         read_header_block_from_stream(&slice_siz, slice_fnam, &ctrl_chr);
734         ctrl_chr != BLK_STOP_A_BIGGIE;
735         res =
736         read_header_block_from_stream(&slice_siz, slice_fnam,
737                                       &ctrl_chr)) {
738        if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
739            wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
740        }
741        res = read_file_from_stream_to_file(bkpinfo, test_file, slice_siz);
742        unlink(test_file);
743        res =
744            read_header_block_from_stream(&slice_siz, slice_fnam,
745                                          &ctrl_chr);
746        if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
747            log_msg(2, "test_file = %s", test_file);
748            wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
749        }
750        current_slice_number++;
751        retval += res;
752    }
753    strcpy(biggie_cksum, slice_fnam);
754    if (biggie_cksum[0] != '\0') {
755        strcpy(orig_cksum, calc_checksum_of_file(biggie_fname));
756        if (strcmp(biggie_cksum, orig_cksum)) {
757            sprintf(tmp, "orig cksum=%s; curr cksum=%s", biggie_cksum,
758                    orig_cksum);
759            log_msg(2, tmp);
760            sprintf(tmp, "%s has changed on live filesystem",
761                    biggie_fname);
762            log_to_screen(tmp);
763            sprintf(tmp, "echo \"%s\" >> /tmp/biggies.changed",
764                    biggie_fname);
765            system(tmp);
766        }
767    }
768    paranoid_free(test_file);
769    paranoid_free(biggie_cksum);
770    paranoid_free(orig_cksum);
771    paranoid_free(tmp);
772    paranoid_free(slice_fnam);
773    return (retval);
774}
775
776
777/**
778 * Verify all afioballs from the opened tape/CD stream.
779 * @param bkpinfo The backup information structure. Fields used:
780 * - @c bkpinfo->restore_path
781 * - @c bkpinfo->tmpdir
782 *
783 * @return 0 for success (even if there are differences); nonzero for a tape error.
784 */
785int verify_afioballs_from_stream(struct s_bkpinfo *bkpinfo)
786{
787    /*@ int ********************************************************** */
788    int retval = 0;
789    int res = 0;
790    long current_afioball_number = 0;
791    int ctrl_chr = 0;
792    int total_afioballs = 0;
793
794    /*@ buffers ***************************************************** */
795    char *tmp;
796    char *fname;
797    char *curr_xattr_list_fname;
798    char *curr_acl_list_fname;
799
800    /*@ long long *************************************************** */
801    long long size = 0;
802
803    assert(bkpinfo != NULL);
804    malloc_string(tmp);
805    malloc_string(fname);
806    malloc_string(curr_xattr_list_fname);
807    malloc_string(curr_acl_list_fname);
808
809    sprintf(curr_xattr_list_fname, XATTR_BIGGLST_FNAME_RAW_SZ,
810            bkpinfo->tmpdir);
811    sprintf(curr_acl_list_fname, ACL_BIGGLST_FNAME_RAW_SZ,
812            bkpinfo->tmpdir);
813    log_to_screen("Verifying regular archives on tape");
814    total_afioballs = get_last_filelist_number(bkpinfo) + 1;
815    open_progress_form("Verifying filesystem",
816                       "I am verifying archives against your live filesystem now.",
817                       "Please wait. This may take a couple of hours.", "",
818                       total_afioballs);
819    res = read_header_block_from_stream(&size, fname, &ctrl_chr);
820    if (ctrl_chr != BLK_START_AFIOBALLS) {
821        iamhere("YOU SHOULD NOT GET HERE");
822        iamhere("Grabbing the EXAT files");
823        if (ctrl_chr == BLK_START_EXTENDED_ATTRIBUTES) {
824            res =
825                read_EXAT_files_from_tape(bkpinfo, &size, fname, &ctrl_chr,
826                                          curr_xattr_list_fname,
827                                          curr_acl_list_fname);
828        }
829    }
830    if (ctrl_chr != BLK_START_AFIOBALLS) {
831        wrong_marker(BLK_START_AFIOBALLS, ctrl_chr);
832    }
833
834    for (res = read_header_block_from_stream(&size, fname, &ctrl_chr);
835         ctrl_chr != BLK_STOP_AFIOBALLS;
836         res = read_header_block_from_stream(&size, fname, &ctrl_chr)) {
837        sprintf(curr_xattr_list_fname, XATTR_LIST_FNAME_RAW_SZ,
838                bkpinfo->tmpdir, current_afioball_number);
839        sprintf(curr_acl_list_fname, ACL_LIST_FNAME_RAW_SZ,
840                bkpinfo->tmpdir, current_afioball_number);
841        if (ctrl_chr == BLK_START_EXTENDED_ATTRIBUTES) {
842            iamhere("Reading EXAT files from tape");
843            res =
844                read_EXAT_files_from_tape(bkpinfo, &size, fname, &ctrl_chr,
845                                          curr_xattr_list_fname,
846                                          curr_acl_list_fname);
847        }
848        if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
849            wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
850        }
851        sprintf(tmp, "Verifying fileset #%ld", current_afioball_number);
852        /*log_it(tmp); */
853        update_progress_form(tmp);
854        res = verify_an_afioball_from_stream(bkpinfo, fname, size);
855        if (res) {
856            sprintf(tmp, "Afioball %ld differs from live filesystem",
857                    current_afioball_number);
858            log_to_screen(tmp);
859        }
860        retval += res;
861        current_afioball_number++;
862        g_current_progress++;
863        res = read_header_block_from_stream(&size, fname, &ctrl_chr);
864        if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
865            wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
866        }
867    }
868    log_msg(1, "All done with afioballs");
869    close_progress_form();
870    paranoid_free(tmp);
871    paranoid_free(fname);
872    paranoid_free(curr_xattr_list_fname);
873    paranoid_free(curr_acl_list_fname);
874    return (retval);
875}
876
877/**
878 * Verify all biggiefiles on the opened CD/tape stream.
879 * @param bkpinfo The backup information structure. Fields used:
880 * - @c bkpinfo->restore_path
881 * - @c bkpinfo->tmpdir
882 *
883 * @return 0 for success (even if there are differences); nonzero for a tape error.
884 */
885int verify_biggiefiles_from_stream(struct s_bkpinfo *bkpinfo)
886{
887
888    /*@ int ************************************************************ */
889    int retval = 0;
890    int res = 0;
891    int ctrl_chr = 0;
892
893    /*@ long *********************************************************** */
894    long noof_biggiefiles = 0;
895    long current_biggiefile_number = 0;
896
897    /*@ buffers ******************************************************** */
898    char *tmp;
899    char *orig_fname, *logical_fname;
900    char *comment;
901    char *curr_xattr_list_fname;
902    char *curr_acl_list_fname;
903    /*@ pointers ******************************************************* */
904    char *p;
905
906    /*@ long long size ************************************************* */
907    long long size = 0;
908
909    assert(bkpinfo != NULL);
910    malloc_string(tmp);
911    malloc_string(orig_fname);
912    malloc_string(logical_fname);
913    malloc_string(comment);
914    malloc_string(curr_xattr_list_fname);
915    malloc_string(curr_acl_list_fname);
916
917    sprintf(curr_xattr_list_fname, XATTR_BIGGLST_FNAME_RAW_SZ,
918            bkpinfo->tmpdir);
919    sprintf(curr_acl_list_fname, ACL_BIGGLST_FNAME_RAW_SZ,
920            bkpinfo->tmpdir);
921    sprintf(comment, "Verifying all bigfiles.");
922    log_to_screen(comment);
923    sprintf(tmp, "%s/biggielist.txt", bkpinfo->tmpdir);
924//  noof_biggiefiles = count_lines_in_file (tmp); // pointless
925    res = read_header_block_from_stream(&size, orig_fname, &ctrl_chr);
926    if (ctrl_chr != BLK_START_BIGGIEFILES) {
927        if (ctrl_chr == BLK_START_EXTENDED_ATTRIBUTES) {
928            iamhere("Grabbing the EXAT biggiefiles");
929            res =
930                read_EXAT_files_from_tape(bkpinfo, &size, orig_fname,
931                                          &ctrl_chr, curr_xattr_list_fname,
932                                          curr_acl_list_fname);
933        }
934    }
935    if (ctrl_chr != BLK_START_BIGGIEFILES) {
936        wrong_marker(BLK_START_BIGGIEFILES, ctrl_chr);
937    }
938    noof_biggiefiles = (long) size;
939    log_msg(1, "noof_biggiefiles = %ld", noof_biggiefiles);
940    open_progress_form("Verifying big files", comment,
941                       "Please wait. This may take some time.", "",
942                       noof_biggiefiles);
943    for (res = read_header_block_from_stream(&size, orig_fname, &ctrl_chr);
944         ctrl_chr != BLK_STOP_BIGGIEFILES;
945         res = read_header_block_from_stream(&size, orig_fname, &ctrl_chr))
946    {
947        if (ctrl_chr != BLK_START_A_NORMBIGGIE
948            && ctrl_chr != BLK_START_A_PIHBIGGIE) {
949            wrong_marker(BLK_START_A_NORMBIGGIE, ctrl_chr);
950        }
951        p = strrchr(orig_fname, '/');
952        if (!p) {
953            p = orig_fname;
954        } else {
955            p++;
956        }
957        sprintf(comment, "Verifying bigfile #%ld (%ld K)",
958                current_biggiefile_number, (long) size >> 10);
959        update_progress_form(comment);
960        sprintf(logical_fname, "%s/%s", bkpinfo->restore_path, orig_fname);
961        res =
962            verify_a_biggiefile_from_stream(bkpinfo, logical_fname, size);
963        retval += res;
964        current_biggiefile_number++;
965        g_current_progress++;
966    }
967    close_progress_form();
968    paranoid_free(orig_fname);
969    paranoid_free(logical_fname);
970    paranoid_free(curr_xattr_list_fname);
971    paranoid_free(curr_acl_list_fname);
972    paranoid_free(comment);
973    paranoid_free(tmp);
974    return (retval);
975}
976
977/* @} - end of LLverifyGroup */
978
979
980/**
981 * Verify the CD indicated by @c g_current_media_number.
982 * @param bkpinfo The backup information structure. Fields used:
983 * - @c bkpinfo->isodir
984 * - @c bkpinfo->prefix
985 * - @c bkpinfo->manual_cd_tray
986 * - @c bkpinfo->media_device
987 * - @c bkpinfo->nfs_remote_dir
988 * - @c bkpinfo->tmpdir
989 * - @c bkpinfo->verify_data
990 *
991 * @return 0 for success (even if differences are found), nonzero for failure.
992 * @ingroup verifyGroup
993 */
994int verify_cd_image(struct s_bkpinfo *bkpinfo)
995{
996
997    /*@ int ************************************************************ */
998    int retval = 0;
999
1000    /*@ buffers ******************************************************** */
1001    char *mountpoint;
1002    char *command;
1003    char *tmp;
1004    char *fname;
1005#ifdef __FreeBSD__
1006    char mdd[32];
1007    char *mddevice = mdd;
1008    int ret = 0;
1009    int vndev = 2;
1010#else
1011//skip
1012#endif
1013
1014    command = malloc(2000);
1015    malloc_string(mountpoint);
1016    malloc_string(tmp);
1017    malloc_string(fname);
1018
1019    assert(bkpinfo != NULL);
1020
1021    sprintf(mountpoint, "%s/cdrom", bkpinfo->tmpdir);
1022    sprintf(fname, "%s/%s/%s-%d.iso", bkpinfo->nfs_remote_dir,
1023            bkpinfo->isodir, bkpinfo->prefix, g_current_media_number);
1024
1025    mkdir(mountpoint, 1777);
1026    sync();
1027    if (!does_file_exist(fname)) {
1028        sprintf(tmp,
1029                "%s not found; assuming you backed up to CD; verifying CD...",
1030                fname);
1031        log_msg(2, tmp);
1032        if (bkpinfo->manual_cd_tray) {
1033            popup_and_OK("Please push CD tray closed.");
1034        }
1035        if (find_and_mount_actual_cd(bkpinfo, mountpoint)) {
1036            log_to_screen("failed to mount actual CD");
1037            return (1);
1038        }
1039    } else {
1040        sprintf(tmp, "%s found; verifying ISO...", fname);
1041#ifdef __FreeBSD__
1042        ret = 0;
1043        vndev = 2;
1044        mddevice = make_vn(fname);
1045        if (ret) {
1046            sprintf(tmp, "make_vn of %s failed; unable to verify ISO\n",
1047                    fname);
1048            log_to_screen(tmp);
1049            return (1);
1050        }
1051        sprintf(command, "mount_cd9660 %s %s", mddevice, mountpoint);
1052#else
1053        sprintf(command, "mount -o loop,ro -t iso9660 %s %s", fname,
1054                mountpoint);
1055#endif
1056        if (run_program_and_log_output(command, FALSE)) {
1057            sprintf(tmp, "%s failed; unable to mount ISO image\n",
1058                    command);
1059            log_to_screen(tmp);
1060            return (1);
1061        }
1062    }
1063    log_msg(2, "OK, I've mounted the ISO/CD\n");
1064    sprintf(tmp, "%s/archives/NOT-THE-LAST", mountpoint);
1065    if (!does_file_exist(tmp)) {
1066        log_msg
1067            (2,
1068             "This is the last CD. I am therefore setting bkpinfo->verify_data to FALSE.");
1069        bkpinfo->verify_data = FALSE;
1070/*
1071   (a) It's an easy way to tell the calling subroutine that we've finished &
1072   there are no more CD's to be verified; (b) It stops the post-backup verifier
1073   from running after the per-CD verifier has run too.
1074*/
1075    }
1076    verify_afioballs_on_CD(bkpinfo, mountpoint);
1077    iamhere("before verify_all_slices");
1078    verify_all_slices_on_CD(bkpinfo, mountpoint);
1079
1080#ifdef __FreeBSD__
1081    ret = 0;
1082    sprintf(command, "umount %s", mountpoint);
1083    ret += system(command);
1084    ret += kick_vn(mddevice);
1085    if (ret)
1086#else
1087    sprintf(command, "umount %s", mountpoint);
1088    if (system(command))
1089#endif
1090    {
1091        sprintf(tmp, "%s failed; unable to unmount ISO image\n", command);
1092        log_to_screen(tmp);
1093        retval++;
1094    } else {
1095        log_msg(2, "OK, I've unmounted the ISO file\n");
1096    }
1097    if (!does_file_exist(fname)) {
1098        sprintf(command, "umount %s", bkpinfo->media_device);
1099        run_program_and_log_output(command, 2);
1100        if (!bkpinfo->please_dont_eject
1101            && eject_device(bkpinfo->media_device)) {
1102            log_msg(2, "Failed to eject CD-ROM drive");
1103        }
1104    }
1105    paranoid_free(command);
1106    paranoid_free(mountpoint);
1107    paranoid_free(tmp);
1108    paranoid_free(fname);
1109    return (retval);
1110}
1111
1112/**
1113 * Verify all backups on tape.
1114 * This should be done after the backup process has already closed the tape.
1115 * @param bkpinfo The backup information structure. Passed to various helper functions.
1116 * @return 0 for success (even if thee were differences), nonzero for failure.
1117 * @ingroup verifyGroup
1118 */
1119int verify_tape_backups(struct s_bkpinfo *bkpinfo)
1120{
1121
1122    /*@ int ************************************************************ */
1123    int retval = 0;
1124
1125    /*@ buffers ******************************************************** */
1126    char tmp[MAX_STR_LEN];
1127    char changed_files_fname[MAX_STR_LEN];
1128
1129    /*@ long *********************************************************** */
1130    long diffs = 0;
1131
1132    assert(bkpinfo != NULL);
1133
1134    log_msg(3, "verify_tape_backups --- starting");
1135    log_to_screen("Verifying backups");
1136    openin_tape(bkpinfo);
1137/* verify archives themselves */
1138    retval += verify_afioballs_from_stream(bkpinfo);
1139    retval += verify_biggiefiles_from_stream(bkpinfo);
1140/* find the final blocks */
1141    paranoid_system("sync");
1142    sleep(2);
1143    closein_tape(bkpinfo);
1144/* close tape; exit */
1145//  fclose(g_tape_stream); <-- not needed; is handled by closein_tape()
1146    paranoid_system
1147        ("rm -f /tmp/biggies.changed /tmp/changed.files.[0-9]* 2> /dev/null");
1148    sprintf(changed_files_fname, "/tmp/changed.files.%d",
1149            (int) (random() % 32767));
1150    sprintf(tmp,
1151            "grep -x \"%s:.*\" %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",
1152            (bkpinfo->use_star) ? "star" : "afio", MONDO_LOGFILE, 
1153            changed_files_fname);
1154    log_msg(2, "Running command to derive list of changed files");
1155    log_msg(2, tmp);
1156    if (system(tmp)) {
1157        if (does_file_exist(changed_files_fname)
1158            && length_of_file(changed_files_fname) > 2) {
1159            log_to_screen
1160                ("Warning - unable to check logfile to derive list of changed files");
1161        } else {
1162            log_to_screen
1163                ("No differences found. Therefore, no 'changed.files' text file.");
1164        }
1165    }
1166    sprintf(tmp, "cat /tmp/biggies.changed >> %s", changed_files_fname);
1167    paranoid_system(tmp);
1168
1169    diffs = count_lines_in_file(changed_files_fname);
1170    if (diffs > 0) {
1171        sprintf(tmp, "cp -f %s %s", changed_files_fname,
1172                "/tmp/changed.files");
1173        run_program_and_log_output(tmp, FALSE);
1174        sprintf(tmp,
1175                "%ld files differed from live filesystem; type less %s or less %s to see",
1176                diffs, changed_files_fname, "/tmp/changed.files");
1177        log_msg(0, tmp);
1178        log_to_screen
1179            ("See /tmp/changed.files for a list of nonmatching files.");
1180        log_to_screen
1181            ("The files probably changed on filesystem, not on backup media.");
1182        //      retval++;
1183    }
1184    return (retval);
1185}
1186
1187
1188
1189/**
1190 * Generate the filename of a tarball to verify.
1191 * @param bkpinfo The backup information structure. @c bkpinfo->zip_suffix is the only field used.
1192 * @param mountpoint The directory where the CD/DVD/ISO is mounted.
1193 * @param setno The afioball number to get the location of.
1194 * @return The absolute path to the afioball.
1195 * @note The returned string points to static data that will be overwritten with each call.
1196 * @ingroup stringGroup
1197 */
1198char *vfy_tball_fname(struct s_bkpinfo *bkpinfo, char *mountpoint,
1199                      int setno)
1200{
1201    /*@ buffers ******************************************************* */
1202    static char output[MAX_STR_LEN];
1203
1204    assert(bkpinfo != NULL);
1205    assert_string_is_neither_NULL_nor_zerolength(mountpoint);
1206    sprintf(output, "%s/archives/%d.star.%s", mountpoint, setno,
1207            bkpinfo->zip_suffix);
1208    if (!does_file_exist(output)) {
1209        sprintf(output, "%s/archives/%d.afio.%s", mountpoint, setno,
1210                bkpinfo->zip_suffix);
1211    }
1212    return (output);
1213}
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