Line data Source code
1 : /*-------------------------------------------------------------------------
2 : *
3 : * pg_verifybackup.c
4 : * Verify a backup against a backup manifest.
5 : *
6 : * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
7 : * Portions Copyright (c) 1994, Regents of the University of California
8 : *
9 : * src/bin/pg_verifybackup/pg_verifybackup.c
10 : *
11 : *-------------------------------------------------------------------------
12 : */
13 :
14 : #include "postgres_fe.h"
15 :
16 : #include <dirent.h>
17 : #include <fcntl.h>
18 : #include <sys/stat.h>
19 : #include <time.h>
20 :
21 : #include "common/logging.h"
22 : #include "common/parse_manifest.h"
23 : #include "fe_utils/simple_list.h"
24 : #include "getopt_long.h"
25 : #include "limits.h"
26 : #include "pg_verifybackup.h"
27 : #include "pgtime.h"
28 :
29 : /*
30 : * For efficiency, we'd like our hash table containing information about the
31 : * manifest to start out with approximately the correct number of entries.
32 : * There's no way to know the exact number of entries without reading the whole
33 : * file, but we can get an estimate by dividing the file size by the estimated
34 : * number of bytes per line.
35 : *
36 : * This could be off by about a factor of two in either direction, because the
37 : * checksum algorithm has a big impact on the line lengths; e.g. a SHA512
38 : * checksum is 128 hex bytes, whereas a CRC-32C value is only 8, and there
39 : * might be no checksum at all.
40 : */
41 : #define ESTIMATED_BYTES_PER_MANIFEST_LINE 100
42 :
43 : /*
44 : * How many bytes should we try to read from a file at once?
45 : */
46 : #define READ_CHUNK_SIZE (128 * 1024)
47 :
48 : /*
49 : * Tar file information needed for content verification.
50 : */
51 : typedef struct tar_file
52 : {
53 : char *relpath;
54 : Oid tblspc_oid;
55 : pg_compress_algorithm compress_algorithm;
56 : } tar_file;
57 :
58 : static manifest_data *parse_manifest_file(char *manifest_path);
59 : static void verifybackup_version_cb(JsonManifestParseContext *context,
60 : int manifest_version);
61 : static void verifybackup_system_identifier(JsonManifestParseContext *context,
62 : uint64 manifest_system_identifier);
63 : static void verifybackup_per_file_cb(JsonManifestParseContext *context,
64 : const char *pathname, uint64 size,
65 : pg_checksum_type checksum_type,
66 : int checksum_length,
67 : uint8 *checksum_payload);
68 : static void verifybackup_per_wal_range_cb(JsonManifestParseContext *context,
69 : TimeLineID tli,
70 : XLogRecPtr start_lsn,
71 : XLogRecPtr end_lsn);
72 : pg_noreturn static void report_manifest_error(JsonManifestParseContext *context,
73 : const char *fmt,...)
74 : pg_attribute_printf(2, 3);
75 :
76 : static void verify_tar_backup(verifier_context *context, DIR *dir);
77 : static void verify_plain_backup_directory(verifier_context *context,
78 : char *relpath, char *fullpath,
79 : DIR *dir);
80 : static void verify_plain_backup_file(verifier_context *context, char *relpath,
81 : char *fullpath);
82 : static void verify_control_file(const char *controlpath,
83 : uint64 manifest_system_identifier);
84 : static void precheck_tar_backup_file(verifier_context *context, char *relpath,
85 : char *fullpath, SimplePtrList *tarfiles);
86 : static void verify_tar_file(verifier_context *context, char *relpath,
87 : char *fullpath, astreamer *streamer);
88 : static void report_extra_backup_files(verifier_context *context);
89 : static void verify_backup_checksums(verifier_context *context);
90 : static void verify_file_checksum(verifier_context *context,
91 : manifest_file *m, char *fullpath,
92 : uint8 *buffer);
93 : static void parse_required_wal(verifier_context *context,
94 : char *pg_waldump_path,
95 : char *wal_directory);
96 : static astreamer *create_archive_verifier(verifier_context *context,
97 : char *archive_name,
98 : Oid tblspc_oid,
99 : pg_compress_algorithm compress_algo);
100 :
101 : static void progress_report(bool finished);
102 : static void usage(void);
103 :
104 : static const char *progname;
105 :
106 : /* is progress reporting enabled? */
107 : static bool show_progress = false;
108 :
109 : /* Progress indicators */
110 : static uint64 total_size = 0;
111 : static uint64 done_size = 0;
112 :
113 : /*
114 : * Main entry point.
115 : */
116 : int
117 238 : main(int argc, char **argv)
118 : {
119 : static struct option long_options[] = {
120 : {"exit-on-error", no_argument, NULL, 'e'},
121 : {"ignore", required_argument, NULL, 'i'},
122 : {"manifest-path", required_argument, NULL, 'm'},
123 : {"format", required_argument, NULL, 'F'},
124 : {"no-parse-wal", no_argument, NULL, 'n'},
125 : {"progress", no_argument, NULL, 'P'},
126 : {"quiet", no_argument, NULL, 'q'},
127 : {"skip-checksums", no_argument, NULL, 's'},
128 : {"wal-directory", required_argument, NULL, 'w'},
129 : {NULL, 0, NULL, 0}
130 : };
131 :
132 : int c;
133 : verifier_context context;
134 238 : char *manifest_path = NULL;
135 238 : bool no_parse_wal = false;
136 238 : bool quiet = false;
137 238 : char *wal_directory = NULL;
138 238 : char *pg_waldump_path = NULL;
139 : DIR *dir;
140 :
141 238 : pg_logging_init(argv[0]);
142 238 : set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_verifybackup"));
143 238 : progname = get_progname(argv[0]);
144 :
145 238 : memset(&context, 0, sizeof(context));
146 :
147 238 : if (argc > 1)
148 : {
149 236 : if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
150 : {
151 2 : usage();
152 2 : exit(0);
153 : }
154 234 : if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
155 : {
156 2 : puts("pg_verifybackup (PostgreSQL) " PG_VERSION);
157 2 : exit(0);
158 : }
159 : }
160 :
161 : /*
162 : * Skip certain files in the toplevel directory.
163 : *
164 : * Ignore the backup_manifest file, because it's not included in the
165 : * backup manifest.
166 : *
167 : * Ignore the pg_wal directory, because those files are not included in
168 : * the backup manifest either, since they are fetched separately from the
169 : * backup itself, and verified via a separate mechanism.
170 : *
171 : * Ignore postgresql.auto.conf, recovery.signal, and standby.signal,
172 : * because we expect that those files may sometimes be created or changed
173 : * as part of the backup process. For example, pg_basebackup -R will
174 : * modify postgresql.auto.conf and create standby.signal.
175 : */
176 234 : simple_string_list_append(&context.ignore_list, "backup_manifest");
177 234 : simple_string_list_append(&context.ignore_list, "pg_wal");
178 234 : simple_string_list_append(&context.ignore_list, "postgresql.auto.conf");
179 234 : simple_string_list_append(&context.ignore_list, "recovery.signal");
180 234 : simple_string_list_append(&context.ignore_list, "standby.signal");
181 :
182 368 : while ((c = getopt_long(argc, argv, "eF:i:m:nPqsw:", long_options, NULL)) != -1)
183 : {
184 138 : switch (c)
185 : {
186 48 : case 'e':
187 48 : context.exit_on_error = true;
188 48 : break;
189 8 : case 'i':
190 : {
191 8 : char *arg = pstrdup(optarg);
192 :
193 8 : canonicalize_path(arg);
194 8 : simple_string_list_append(&context.ignore_list, arg);
195 8 : break;
196 : }
197 8 : case 'm':
198 8 : manifest_path = pstrdup(optarg);
199 8 : canonicalize_path(manifest_path);
200 8 : break;
201 6 : case 'F':
202 6 : if (strcmp(optarg, "p") == 0 || strcmp(optarg, "plain") == 0)
203 2 : context.format = 'p';
204 4 : else if (strcmp(optarg, "t") == 0 || strcmp(optarg, "tar") == 0)
205 2 : context.format = 't';
206 : else
207 2 : pg_fatal("invalid backup format \"%s\", must be \"plain\" or \"tar\"",
208 : optarg);
209 4 : break;
210 50 : case 'n':
211 50 : no_parse_wal = true;
212 50 : break;
213 4 : case 'P':
214 4 : show_progress = true;
215 4 : break;
216 6 : case 'q':
217 6 : quiet = true;
218 6 : break;
219 4 : case 's':
220 4 : context.skip_checksums = true;
221 4 : break;
222 2 : case 'w':
223 2 : wal_directory = pstrdup(optarg);
224 2 : canonicalize_path(wal_directory);
225 2 : break;
226 2 : default:
227 : /* getopt_long already emitted a complaint */
228 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
229 2 : exit(1);
230 : }
231 : }
232 :
233 : /* Get backup directory name */
234 230 : if (optind >= argc)
235 : {
236 2 : pg_log_error("no backup directory specified");
237 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
238 2 : exit(1);
239 : }
240 228 : context.backup_directory = pstrdup(argv[optind++]);
241 228 : canonicalize_path(context.backup_directory);
242 :
243 : /* Complain if any arguments remain */
244 228 : if (optind < argc)
245 : {
246 2 : pg_log_error("too many command-line arguments (first is \"%s\")",
247 : argv[optind]);
248 2 : pg_log_error_hint("Try \"%s --help\" for more information.", progname);
249 2 : exit(1);
250 : }
251 :
252 : /* Complain if the specified arguments conflict */
253 226 : if (show_progress && quiet)
254 2 : pg_fatal("cannot specify both %s and %s",
255 : "-P/--progress", "-q/--quiet");
256 :
257 : /* Unless --no-parse-wal was specified, we will need pg_waldump. */
258 224 : if (!no_parse_wal)
259 : {
260 : int ret;
261 :
262 174 : pg_waldump_path = pg_malloc(MAXPGPATH);
263 174 : ret = find_other_exec(argv[0], "pg_waldump",
264 : "pg_waldump (PostgreSQL) " PG_VERSION "\n",
265 : pg_waldump_path);
266 174 : if (ret < 0)
267 : {
268 : char full_path[MAXPGPATH];
269 :
270 0 : if (find_my_exec(argv[0], full_path) < 0)
271 0 : strlcpy(full_path, progname, sizeof(full_path));
272 :
273 0 : if (ret == -1)
274 0 : pg_fatal("program \"%s\" is needed by %s but was not found in the same directory as \"%s\"",
275 : "pg_waldump", "pg_verifybackup", full_path);
276 : else
277 0 : pg_fatal("program \"%s\" was found by \"%s\" but was not the same version as %s",
278 : "pg_waldump", full_path, "pg_verifybackup");
279 : }
280 : }
281 :
282 : /* By default, look for the manifest in the backup directory. */
283 224 : if (manifest_path == NULL)
284 216 : manifest_path = psprintf("%s/backup_manifest",
285 : context.backup_directory);
286 :
287 : /* By default, look for the WAL in the backup directory, too. */
288 224 : if (wal_directory == NULL)
289 222 : wal_directory = psprintf("%s/pg_wal", context.backup_directory);
290 :
291 : /*
292 : * Try to read the manifest. We treat any errors encountered while parsing
293 : * the manifest as fatal; there doesn't seem to be much point in trying to
294 : * verify the backup directory against a corrupted manifest.
295 : */
296 224 : context.manifest = parse_manifest_file(manifest_path);
297 :
298 : /*
299 : * If the backup directory cannot be found, treat this as a fatal error.
300 : */
301 154 : dir = opendir(context.backup_directory);
302 154 : if (dir == NULL)
303 2 : report_fatal_error("could not open directory \"%s\": %m",
304 : context.backup_directory);
305 :
306 : /*
307 : * At this point, we know that the backup directory exists, so it's now
308 : * reasonable to check for files immediately inside it. Thus, before going
309 : * further, if the user did not specify the backup format, check for
310 : * PG_VERSION to distinguish between tar and plain format.
311 : */
312 152 : if (context.format == '\0')
313 : {
314 : struct stat sb;
315 : char *path;
316 :
317 148 : path = psprintf("%s/%s", context.backup_directory, "PG_VERSION");
318 148 : if (stat(path, &sb) == 0)
319 108 : context.format = 'p';
320 40 : else if (errno != ENOENT)
321 : {
322 0 : pg_log_error("could not stat file \"%s\": %m", path);
323 0 : exit(1);
324 : }
325 : else
326 : {
327 : /* No PG_VERSION, so assume tar format. */
328 40 : context.format = 't';
329 : }
330 148 : pfree(path);
331 : }
332 :
333 : /*
334 : * XXX: In the future, we should consider enhancing pg_waldump to read WAL
335 : * files from an archive.
336 : */
337 152 : if (!no_parse_wal && context.format == 't')
338 : {
339 0 : pg_log_error("pg_waldump cannot read tar files");
340 0 : pg_log_error_hint("You must use -n or --no-parse-wal when verifying a tar-format backup.");
341 0 : exit(1);
342 : }
343 :
344 : /*
345 : * Perform the appropriate type of verification appropriate based on the
346 : * backup format. This will close 'dir'.
347 : */
348 152 : if (context.format == 'p')
349 110 : verify_plain_backup_directory(&context, NULL, context.backup_directory,
350 : dir);
351 : else
352 42 : verify_tar_backup(&context, dir);
353 :
354 : /*
355 : * The "matched" flag should now be set on every entry in the hash table.
356 : * Any entries for which the bit is not set are files mentioned in the
357 : * manifest that don't exist on disk (or in the relevant tar files).
358 : */
359 148 : report_extra_backup_files(&context);
360 :
361 : /*
362 : * If this is a tar-format backup, checksums were already verified above;
363 : * but if it's a plain-format backup, we postpone it until this point,
364 : * since the earlier checks can be performed just by knowing which files
365 : * are present, without needing to read all of them.
366 : */
367 146 : if (context.format == 'p' && !context.skip_checksums)
368 102 : verify_backup_checksums(&context);
369 :
370 : /*
371 : * Try to parse the required ranges of WAL records, unless we were told
372 : * not to do so.
373 : */
374 146 : if (!no_parse_wal)
375 100 : parse_required_wal(&context, pg_waldump_path, wal_directory);
376 :
377 : /*
378 : * If everything looks OK, tell the user this, unless we were asked to
379 : * work quietly.
380 : */
381 146 : if (!context.saw_any_error && !quiet)
382 98 : printf(_("backup successfully verified\n"));
383 :
384 146 : return context.saw_any_error ? 1 : 0;
385 : }
386 :
387 : /*
388 : * Parse a manifest file and return a data structure describing the contents.
389 : */
390 : static manifest_data *
391 224 : parse_manifest_file(char *manifest_path)
392 : {
393 : int fd;
394 : struct stat statbuf;
395 : off_t estimate;
396 : uint32 initial_size;
397 : manifest_files_hash *ht;
398 : char *buffer;
399 : int rc;
400 : JsonManifestParseContext context;
401 : manifest_data *result;
402 :
403 224 : int chunk_size = READ_CHUNK_SIZE;
404 :
405 : /* Open the manifest file. */
406 224 : if ((fd = open(manifest_path, O_RDONLY | PG_BINARY, 0)) < 0)
407 6 : report_fatal_error("could not open file \"%s\": %m", manifest_path);
408 :
409 : /* Figure out how big the manifest is. */
410 218 : if (fstat(fd, &statbuf) != 0)
411 0 : report_fatal_error("could not stat file \"%s\": %m", manifest_path);
412 :
413 : /* Guess how large to make the hash table based on the manifest size. */
414 218 : estimate = statbuf.st_size / ESTIMATED_BYTES_PER_MANIFEST_LINE;
415 218 : initial_size = Min(PG_UINT32_MAX, Max(estimate, 256));
416 :
417 : /* Create the hash table. */
418 218 : ht = manifest_files_create(initial_size, NULL);
419 :
420 218 : result = pg_malloc0(sizeof(manifest_data));
421 218 : result->files = ht;
422 218 : context.private_data = result;
423 218 : context.version_cb = verifybackup_version_cb;
424 218 : context.system_identifier_cb = verifybackup_system_identifier;
425 218 : context.per_file_cb = verifybackup_per_file_cb;
426 218 : context.per_wal_range_cb = verifybackup_per_wal_range_cb;
427 218 : context.error_cb = report_manifest_error;
428 :
429 : /*
430 : * Parse the file, in chunks if necessary.
431 : */
432 218 : if (statbuf.st_size <= chunk_size)
433 : {
434 66 : buffer = pg_malloc(statbuf.st_size);
435 66 : rc = read(fd, buffer, statbuf.st_size);
436 66 : if (rc != statbuf.st_size)
437 : {
438 0 : if (rc < 0)
439 0 : pg_fatal("could not read file \"%s\": %m", manifest_path);
440 : else
441 0 : pg_fatal("could not read file \"%s\": read %d of %lld",
442 : manifest_path, rc, (long long int) statbuf.st_size);
443 : }
444 :
445 : /* Close the manifest file. */
446 66 : close(fd);
447 :
448 : /* Parse the manifest. */
449 66 : json_parse_manifest(&context, buffer, statbuf.st_size);
450 : }
451 : else
452 : {
453 152 : int bytes_left = statbuf.st_size;
454 : JsonManifestParseIncrementalState *inc_state;
455 :
456 152 : inc_state = json_parse_manifest_incremental_init(&context);
457 :
458 152 : buffer = pg_malloc(chunk_size + 1);
459 :
460 452 : while (bytes_left > 0)
461 : {
462 304 : int bytes_to_read = chunk_size;
463 :
464 : /*
465 : * Make sure that the last chunk is sufficiently large. (i.e. at
466 : * least half the chunk size) so that it will contain fully the
467 : * piece at the end with the checksum.
468 : */
469 304 : if (bytes_left < chunk_size)
470 152 : bytes_to_read = bytes_left;
471 152 : else if (bytes_left < 2 * chunk_size)
472 152 : bytes_to_read = bytes_left / 2;
473 304 : rc = read(fd, buffer, bytes_to_read);
474 304 : if (rc != bytes_to_read)
475 : {
476 0 : if (rc < 0)
477 0 : pg_fatal("could not read file \"%s\": %m", manifest_path);
478 : else
479 0 : pg_fatal("could not read file \"%s\": read %lld of %lld",
480 : manifest_path,
481 : (long long int) (statbuf.st_size + rc - bytes_left),
482 : (long long int) statbuf.st_size);
483 : }
484 304 : bytes_left -= rc;
485 304 : json_parse_manifest_incremental_chunk(inc_state, buffer, rc,
486 : bytes_left == 0);
487 : }
488 :
489 : /* Release the incremental state memory */
490 148 : json_parse_manifest_incremental_shutdown(inc_state);
491 :
492 148 : close(fd);
493 : }
494 :
495 : /* Done with the buffer. */
496 154 : pfree(buffer);
497 :
498 154 : return result;
499 : }
500 :
501 : /*
502 : * Report an error while parsing the manifest.
503 : *
504 : * We consider all such errors to be fatal errors. The manifest parser
505 : * expects this function not to return.
506 : */
507 : static void
508 62 : report_manifest_error(JsonManifestParseContext *context, const char *fmt,...)
509 : {
510 : va_list ap;
511 :
512 62 : va_start(ap, fmt);
513 62 : pg_log_generic_v(PG_LOG_ERROR, PG_LOG_PRIMARY, gettext(fmt), ap);
514 62 : va_end(ap);
515 :
516 62 : exit(1);
517 : }
518 :
519 : /*
520 : * Record details extracted from the backup manifest.
521 : */
522 : static void
523 206 : verifybackup_version_cb(JsonManifestParseContext *context,
524 : int manifest_version)
525 : {
526 206 : manifest_data *manifest = context->private_data;
527 :
528 : /* Validation will be at the later stage */
529 206 : manifest->version = manifest_version;
530 206 : }
531 :
532 : /*
533 : * Record details extracted from the backup manifest.
534 : */
535 : static void
536 158 : verifybackup_system_identifier(JsonManifestParseContext *context,
537 : uint64 manifest_system_identifier)
538 : {
539 158 : manifest_data *manifest = context->private_data;
540 :
541 : /* Validation will be at the later stage */
542 158 : manifest->system_identifier = manifest_system_identifier;
543 158 : }
544 :
545 : /*
546 : * Record details extracted from the backup manifest for one file.
547 : */
548 : static void
549 153468 : verifybackup_per_file_cb(JsonManifestParseContext *context,
550 : const char *pathname, uint64 size,
551 : pg_checksum_type checksum_type,
552 : int checksum_length, uint8 *checksum_payload)
553 : {
554 153468 : manifest_data *manifest = context->private_data;
555 153468 : manifest_files_hash *ht = manifest->files;
556 : manifest_file *m;
557 : bool found;
558 :
559 : /* Make a new entry in the hash table for this file. */
560 153468 : m = manifest_files_insert(ht, pathname, &found);
561 153468 : if (found)
562 2 : report_fatal_error("duplicate path name in backup manifest: \"%s\"",
563 : pathname);
564 :
565 : /* Initialize the entry. */
566 153466 : m->size = size;
567 153466 : m->checksum_type = checksum_type;
568 153466 : m->checksum_length = checksum_length;
569 153466 : m->checksum_payload = checksum_payload;
570 153466 : m->matched = false;
571 153466 : m->bad = false;
572 153466 : }
573 :
574 : /*
575 : * Record details extracted from the backup manifest for one WAL range.
576 : */
577 : static void
578 160 : verifybackup_per_wal_range_cb(JsonManifestParseContext *context,
579 : TimeLineID tli,
580 : XLogRecPtr start_lsn, XLogRecPtr end_lsn)
581 : {
582 160 : manifest_data *manifest = context->private_data;
583 : manifest_wal_range *range;
584 :
585 : /* Allocate and initialize a struct describing this WAL range. */
586 160 : range = palloc(sizeof(manifest_wal_range));
587 160 : range->tli = tli;
588 160 : range->start_lsn = start_lsn;
589 160 : range->end_lsn = end_lsn;
590 160 : range->prev = manifest->last_wal_range;
591 160 : range->next = NULL;
592 :
593 : /* Add it to the end of the list. */
594 160 : if (manifest->first_wal_range == NULL)
595 160 : manifest->first_wal_range = range;
596 : else
597 0 : manifest->last_wal_range->next = range;
598 160 : manifest->last_wal_range = range;
599 160 : }
600 :
601 : /*
602 : * Verify one directory of a plain-format backup.
603 : *
604 : * 'relpath' is NULL if we are to verify the top-level backup directory,
605 : * and otherwise the relative path to the directory that is to be verified.
606 : *
607 : * 'fullpath' is the backup directory with 'relpath' appended; i.e. the actual
608 : * filesystem path at which it can be found.
609 : *
610 : * 'dir' is an open directory handle, or NULL if the caller wants us to
611 : * open it. If the caller chooses to pass a handle, we'll close it when
612 : * we're done with it.
613 : */
614 : static void
615 2730 : verify_plain_backup_directory(verifier_context *context, char *relpath,
616 : char *fullpath, DIR *dir)
617 : {
618 : struct dirent *dirent;
619 :
620 : /* Open the directory unless the caller did it. */
621 2730 : if (dir == NULL && ((dir = opendir(fullpath)) == NULL))
622 : {
623 2 : report_backup_error(context,
624 : "could not open directory \"%s\": %m", fullpath);
625 2 : simple_string_list_append(&context->ignore_list, relpath);
626 :
627 2 : return;
628 : }
629 :
630 114142 : while (errno = 0, (dirent = readdir(dir)) != NULL)
631 : {
632 111418 : char *filename = dirent->d_name;
633 111418 : char *newfullpath = psprintf("%s/%s", fullpath, filename);
634 : char *newrelpath;
635 :
636 : /* Skip "." and ".." */
637 111418 : if (filename[0] == '.' && (filename[1] == '\0'
638 2724 : || strcmp(filename, "..") == 0))
639 5450 : continue;
640 :
641 105968 : if (relpath == NULL)
642 2604 : newrelpath = pstrdup(filename);
643 : else
644 103364 : newrelpath = psprintf("%s/%s", relpath, filename);
645 :
646 105968 : if (!should_ignore_relpath(context, newrelpath))
647 105648 : verify_plain_backup_file(context, newrelpath, newfullpath);
648 :
649 105964 : pfree(newfullpath);
650 105964 : pfree(newrelpath);
651 : }
652 :
653 2724 : if (closedir(dir))
654 : {
655 0 : report_backup_error(context,
656 : "could not close directory \"%s\": %m", fullpath);
657 0 : return;
658 : }
659 : }
660 :
661 : /*
662 : * Verify one file (which might actually be a directory or a symlink).
663 : *
664 : * The arguments to this function have the same meaning as the similarly named
665 : * arguments to verify_plain_backup_directory.
666 : */
667 : static void
668 105648 : verify_plain_backup_file(verifier_context *context, char *relpath,
669 : char *fullpath)
670 : {
671 : struct stat sb;
672 : manifest_file *m;
673 :
674 105648 : if (stat(fullpath, &sb) != 0)
675 : {
676 6 : report_backup_error(context,
677 : "could not stat file or directory \"%s\": %m",
678 : relpath);
679 :
680 : /*
681 : * Suppress further errors related to this path name and, if it's a
682 : * directory, anything underneath it.
683 : */
684 6 : simple_string_list_append(&context->ignore_list, relpath);
685 :
686 2628 : return;
687 : }
688 :
689 : /* If it's a directory, just recurse. */
690 105642 : if (S_ISDIR(sb.st_mode))
691 : {
692 2620 : verify_plain_backup_directory(context, relpath, fullpath, NULL);
693 2618 : return;
694 : }
695 :
696 : /* If it's not a directory, it should be a plain file. */
697 103022 : if (!S_ISREG(sb.st_mode))
698 : {
699 0 : report_backup_error(context,
700 : "\"%s\" is not a file or directory",
701 : relpath);
702 0 : return;
703 : }
704 :
705 : /* Check whether there's an entry in the manifest hash. */
706 103022 : m = manifest_files_lookup(context->manifest->files, relpath);
707 103022 : if (m == NULL)
708 : {
709 4 : report_backup_error(context,
710 : "\"%s\" is present on disk but not in the manifest",
711 : relpath);
712 4 : return;
713 : }
714 :
715 : /* Flag this entry as having been encountered in the filesystem. */
716 103018 : m->matched = true;
717 :
718 : /* Check that the size matches. */
719 103018 : if (m->size != sb.st_size)
720 : {
721 4 : report_backup_error(context,
722 : "\"%s\" has size %llu on disk but size %llu in the manifest",
723 4 : relpath, (unsigned long long) sb.st_size,
724 4 : (unsigned long long) m->size);
725 4 : m->bad = true;
726 : }
727 :
728 : /*
729 : * Validate the manifest system identifier, not available in manifest
730 : * version 1.
731 : */
732 103018 : if (context->manifest->version != 1 &&
733 103018 : strcmp(relpath, "global/pg_control") == 0)
734 110 : verify_control_file(fullpath, context->manifest->system_identifier);
735 :
736 : /* Update statistics for progress report, if necessary */
737 103016 : if (show_progress && !context->skip_checksums &&
738 1936 : should_verify_checksum(m))
739 1936 : total_size += m->size;
740 :
741 : /*
742 : * We don't verify checksums at this stage. We first finish verifying that
743 : * we have the expected set of files with the expected sizes, and only
744 : * afterwards verify the checksums. That's because computing checksums may
745 : * take a while, and we'd like to report more obvious problems quickly.
746 : */
747 : }
748 :
749 : /*
750 : * Sanity check control file and validate system identifier against manifest
751 : * system identifier.
752 : */
753 : static void
754 110 : verify_control_file(const char *controlpath, uint64 manifest_system_identifier)
755 : {
756 : ControlFileData *control_file;
757 : bool crc_ok;
758 :
759 110 : pg_log_debug("reading \"%s\"", controlpath);
760 110 : control_file = get_controlfile_by_exact_path(controlpath, &crc_ok);
761 :
762 : /* Control file contents not meaningful if CRC is bad. */
763 110 : if (!crc_ok)
764 0 : report_fatal_error("%s: CRC is incorrect", controlpath);
765 :
766 : /* Can't interpret control file if not current version. */
767 110 : if (control_file->pg_control_version != PG_CONTROL_VERSION)
768 0 : report_fatal_error("%s: unexpected control file version",
769 : controlpath);
770 :
771 : /* System identifiers should match. */
772 110 : if (manifest_system_identifier != control_file->system_identifier)
773 2 : report_fatal_error("%s: manifest system identifier is %llu, but control file has %llu",
774 : controlpath,
775 : (unsigned long long) manifest_system_identifier,
776 2 : (unsigned long long) control_file->system_identifier);
777 :
778 : /* Release memory. */
779 108 : pfree(control_file);
780 108 : }
781 :
782 : /*
783 : * Verify tar backup.
784 : *
785 : * The caller should pass a handle to the target directory, which we will
786 : * close when we're done with it.
787 : */
788 : static void
789 42 : verify_tar_backup(verifier_context *context, DIR *dir)
790 : {
791 : struct dirent *dirent;
792 42 : SimplePtrList tarfiles = {NULL, NULL};
793 : SimplePtrListCell *cell;
794 :
795 : Assert(context->format != 'p');
796 :
797 42 : progress_report(false);
798 :
799 : /* First pass: scan the directory for tar files. */
800 302 : while (errno = 0, (dirent = readdir(dir)) != NULL)
801 : {
802 260 : char *filename = dirent->d_name;
803 :
804 : /* Skip "." and ".." */
805 260 : if (filename[0] == '.' && (filename[1] == '\0'
806 42 : || strcmp(filename, "..") == 0))
807 84 : continue;
808 :
809 : /*
810 : * Unless it's something we should ignore, perform prechecks and add
811 : * it to the list.
812 : */
813 176 : if (!should_ignore_relpath(context, filename))
814 : {
815 : char *fullpath;
816 :
817 130 : fullpath = psprintf("%s/%s", context->backup_directory, filename);
818 130 : precheck_tar_backup_file(context, filename, fullpath, &tarfiles);
819 130 : pfree(fullpath);
820 : }
821 : }
822 :
823 42 : if (closedir(dir))
824 : {
825 0 : report_backup_error(context,
826 : "could not close directory \"%s\": %m",
827 : context->backup_directory);
828 0 : return;
829 : }
830 :
831 : /* Second pass: Perform the final verification of the tar contents. */
832 98 : for (cell = tarfiles.head; cell != NULL; cell = cell->next)
833 : {
834 58 : tar_file *tar = (tar_file *) cell->ptr;
835 : astreamer *streamer;
836 : char *fullpath;
837 :
838 : /*
839 : * Prepares the archive streamer stack according to the tar
840 : * compression format.
841 : */
842 58 : streamer = create_archive_verifier(context,
843 : tar->relpath,
844 : tar->tblspc_oid,
845 : tar->compress_algorithm);
846 :
847 : /* Compute the full pathname to the target file. */
848 58 : fullpath = psprintf("%s/%s", context->backup_directory,
849 : tar->relpath);
850 :
851 : /* Invoke the streamer for reading, decompressing, and verifying. */
852 58 : verify_tar_file(context, tar->relpath, fullpath, streamer);
853 :
854 : /* Cleanup. */
855 56 : pfree(tar->relpath);
856 56 : pfree(tar);
857 56 : pfree(fullpath);
858 :
859 56 : astreamer_finalize(streamer);
860 56 : astreamer_free(streamer);
861 : }
862 40 : simple_ptr_list_destroy(&tarfiles);
863 :
864 40 : progress_report(true);
865 : }
866 :
867 : /*
868 : * Preparatory steps for verifying files in tar format backups.
869 : *
870 : * Carries out basic validation of the tar format backup file, detects the
871 : * compression type, and appends that information to the tarfiles list. An
872 : * error will be reported if the tar file is inaccessible, or if the file type,
873 : * name, or compression type is not as expected.
874 : *
875 : * The arguments to this function are mostly the same as the
876 : * verify_plain_backup_file. The additional argument outputs a list of valid
877 : * tar files.
878 : */
879 : static void
880 130 : precheck_tar_backup_file(verifier_context *context, char *relpath,
881 : char *fullpath, SimplePtrList *tarfiles)
882 : {
883 : struct stat sb;
884 130 : Oid tblspc_oid = InvalidOid;
885 : pg_compress_algorithm compress_algorithm;
886 : tar_file *tar;
887 130 : char *suffix = NULL;
888 :
889 : /* Should be tar format backup */
890 : Assert(context->format == 't');
891 :
892 : /* Get file information */
893 130 : if (stat(fullpath, &sb) != 0)
894 : {
895 0 : report_backup_error(context,
896 : "could not stat file or directory \"%s\": %m",
897 : relpath);
898 70 : return;
899 : }
900 :
901 : /* In a tar format backup, we expect only plain files. */
902 130 : if (!S_ISREG(sb.st_mode))
903 : {
904 32 : report_backup_error(context,
905 : "\"%s\" is not a plain file",
906 : relpath);
907 32 : return;
908 : }
909 :
910 : /*
911 : * We expect tar files for backing up the main directory, tablespace, and
912 : * pg_wal directory.
913 : *
914 : * pg_basebackup writes the main data directory to an archive file named
915 : * base.tar, the pg_wal directory to pg_wal.tar, and the tablespace
916 : * directory to <tablespaceoid>.tar, each followed by a compression type
917 : * extension such as .gz, .lz4, or .zst.
918 : */
919 98 : if (strncmp("base", relpath, 4) == 0)
920 40 : suffix = relpath + 4;
921 58 : else if (strncmp("pg_wal", relpath, 6) == 0)
922 28 : suffix = relpath + 6;
923 : else
924 : {
925 : /* Expected a <tablespaceoid>.tar file here. */
926 30 : uint64 num = strtoul(relpath, &suffix, 10);
927 :
928 : /*
929 : * Report an error if we didn't consume at least one character, if the
930 : * result is 0, or if the value is too large to be a valid OID.
931 : */
932 30 : if (suffix == NULL || num <= 0 || num > OID_MAX)
933 : {
934 10 : report_backup_error(context,
935 : "file \"%s\" is not expected in a tar format backup",
936 : relpath);
937 10 : return;
938 : }
939 20 : tblspc_oid = (Oid) num;
940 : }
941 :
942 : /* Now, check the compression type of the tar */
943 88 : if (strcmp(suffix, ".tar") == 0)
944 76 : compress_algorithm = PG_COMPRESSION_NONE;
945 12 : else if (strcmp(suffix, ".tgz") == 0)
946 0 : compress_algorithm = PG_COMPRESSION_GZIP;
947 12 : else if (strcmp(suffix, ".tar.gz") == 0)
948 6 : compress_algorithm = PG_COMPRESSION_GZIP;
949 6 : else if (strcmp(suffix, ".tar.lz4") == 0)
950 6 : compress_algorithm = PG_COMPRESSION_LZ4;
951 0 : else if (strcmp(suffix, ".tar.zst") == 0)
952 0 : compress_algorithm = PG_COMPRESSION_ZSTD;
953 : else
954 : {
955 0 : report_backup_error(context,
956 : "file \"%s\" is not expected in a tar format backup",
957 : relpath);
958 0 : return;
959 : }
960 :
961 : /*
962 : * Ignore WALs, as reading and verification will be handled through
963 : * pg_waldump.
964 : */
965 88 : if (strncmp("pg_wal", relpath, 6) == 0)
966 28 : return;
967 :
968 : /*
969 : * Append the information to the list for complete verification at a later
970 : * stage.
971 : */
972 60 : tar = pg_malloc(sizeof(tar_file));
973 60 : tar->relpath = pstrdup(relpath);
974 60 : tar->tblspc_oid = tblspc_oid;
975 60 : tar->compress_algorithm = compress_algorithm;
976 :
977 60 : simple_ptr_list_append(tarfiles, tar);
978 :
979 : /* Update statistics for progress report, if necessary */
980 60 : if (show_progress)
981 0 : total_size += sb.st_size;
982 : }
983 :
984 : /*
985 : * Verification of a single tar file content.
986 : *
987 : * It reads a given tar archive in predefined chunks and passes it to the
988 : * streamer, which initiates routines for decompression (if necessary) and then
989 : * verifies each member within the tar file.
990 : */
991 : static void
992 58 : verify_tar_file(verifier_context *context, char *relpath, char *fullpath,
993 : astreamer *streamer)
994 : {
995 : int fd;
996 : int rc;
997 : char *buffer;
998 :
999 58 : pg_log_debug("reading \"%s\"", fullpath);
1000 :
1001 : /* Open the target file. */
1002 58 : if ((fd = open(fullpath, O_RDONLY | PG_BINARY, 0)) < 0)
1003 : {
1004 0 : report_backup_error(context, "could not open file \"%s\": %m",
1005 : relpath);
1006 0 : return;
1007 : }
1008 :
1009 58 : buffer = pg_malloc(READ_CHUNK_SIZE * sizeof(uint8));
1010 :
1011 : /* Perform the reads */
1012 6338 : while ((rc = read(fd, buffer, READ_CHUNK_SIZE)) > 0)
1013 : {
1014 6282 : astreamer_content(streamer, NULL, buffer, rc, ASTREAMER_UNKNOWN);
1015 :
1016 : /* Report progress */
1017 6280 : done_size += rc;
1018 6280 : progress_report(false);
1019 : }
1020 :
1021 56 : pg_free(buffer);
1022 :
1023 56 : if (rc < 0)
1024 0 : report_backup_error(context, "could not read file \"%s\": %m",
1025 : relpath);
1026 :
1027 : /* Close the file. */
1028 56 : if (close(fd) != 0)
1029 0 : report_backup_error(context, "could not close file \"%s\": %m",
1030 : relpath);
1031 : }
1032 :
1033 : /*
1034 : * Scan the hash table for entries where the 'matched' flag is not set; report
1035 : * that such files are present in the manifest but not on disk.
1036 : */
1037 : static void
1038 148 : report_extra_backup_files(verifier_context *context)
1039 : {
1040 148 : manifest_data *manifest = context->manifest;
1041 : manifest_files_iterator it;
1042 : manifest_file *m;
1043 :
1044 148 : manifest_files_start_iterate(manifest->files, &it);
1045 142720 : while ((m = manifest_files_iterate(manifest->files, &it)) != NULL)
1046 142574 : if (!m->matched && !should_ignore_relpath(context, m->pathname))
1047 1952 : report_backup_error(context,
1048 : "\"%s\" is present in the manifest but not on disk",
1049 : m->pathname);
1050 146 : }
1051 :
1052 : /*
1053 : * Verify checksums for hash table entries that are otherwise unproblematic.
1054 : * If we've already reported some problem related to a hash table entry, or
1055 : * if it has no checksum, just skip it.
1056 : */
1057 : static void
1058 102 : verify_backup_checksums(verifier_context *context)
1059 : {
1060 102 : manifest_data *manifest = context->manifest;
1061 : manifest_files_iterator it;
1062 : manifest_file *m;
1063 : uint8 *buffer;
1064 :
1065 102 : progress_report(false);
1066 :
1067 102 : buffer = pg_malloc(READ_CHUNK_SIZE * sizeof(uint8));
1068 :
1069 102 : manifest_files_start_iterate(manifest->files, &it);
1070 99168 : while ((m = manifest_files_iterate(manifest->files, &it)) != NULL)
1071 : {
1072 99066 : if (should_verify_checksum(m) &&
1073 93252 : !should_ignore_relpath(context, m->pathname))
1074 : {
1075 : char *fullpath;
1076 :
1077 : /* Compute the full pathname to the target file. */
1078 93252 : fullpath = psprintf("%s/%s", context->backup_directory,
1079 : m->pathname);
1080 :
1081 : /* Do the actual checksum verification. */
1082 93252 : verify_file_checksum(context, m, fullpath, buffer);
1083 :
1084 : /* Avoid leaking memory. */
1085 93252 : pfree(fullpath);
1086 : }
1087 : }
1088 :
1089 102 : pfree(buffer);
1090 :
1091 102 : progress_report(true);
1092 102 : }
1093 :
1094 : /*
1095 : * Verify the checksum of a single file.
1096 : */
1097 : static void
1098 93252 : verify_file_checksum(verifier_context *context, manifest_file *m,
1099 : char *fullpath, uint8 *buffer)
1100 : {
1101 : pg_checksum_context checksum_ctx;
1102 93252 : const char *relpath = m->pathname;
1103 : int fd;
1104 : int rc;
1105 93252 : uint64 bytes_read = 0;
1106 : uint8 checksumbuf[PG_CHECKSUM_MAX_LENGTH];
1107 : int checksumlen;
1108 :
1109 : /* Open the target file. */
1110 93252 : if ((fd = open(fullpath, O_RDONLY | PG_BINARY, 0)) < 0)
1111 : {
1112 2 : report_backup_error(context, "could not open file \"%s\": %m",
1113 : relpath);
1114 2 : return;
1115 : }
1116 :
1117 : /* Initialize checksum context. */
1118 93250 : if (pg_checksum_init(&checksum_ctx, m->checksum_type) < 0)
1119 : {
1120 0 : report_backup_error(context, "could not initialize checksum of file \"%s\"",
1121 : relpath);
1122 0 : close(fd);
1123 0 : return;
1124 : }
1125 :
1126 : /* Read the file chunk by chunk, updating the checksum as we go. */
1127 175070 : while ((rc = read(fd, buffer, READ_CHUNK_SIZE)) > 0)
1128 : {
1129 81820 : bytes_read += rc;
1130 81820 : if (pg_checksum_update(&checksum_ctx, buffer, rc) < 0)
1131 : {
1132 0 : report_backup_error(context, "could not update checksum of file \"%s\"",
1133 : relpath);
1134 0 : close(fd);
1135 0 : return;
1136 : }
1137 :
1138 : /* Report progress */
1139 81820 : done_size += rc;
1140 81820 : progress_report(false);
1141 : }
1142 93250 : if (rc < 0)
1143 0 : report_backup_error(context, "could not read file \"%s\": %m",
1144 : relpath);
1145 :
1146 : /* Close the file. */
1147 93250 : if (close(fd) != 0)
1148 : {
1149 0 : report_backup_error(context, "could not close file \"%s\": %m",
1150 : relpath);
1151 0 : return;
1152 : }
1153 :
1154 : /* If we didn't manage to read the whole file, bail out now. */
1155 93250 : if (rc < 0)
1156 0 : return;
1157 :
1158 : /*
1159 : * Double-check that we read the expected number of bytes from the file.
1160 : * Normally, mismatches would be caught in verify_plain_backup_file and
1161 : * this check would never be reached, but this provides additional safety
1162 : * and clarity in the event of concurrent modifications or filesystem
1163 : * misbehavior.
1164 : */
1165 93250 : if (bytes_read != m->size)
1166 : {
1167 0 : report_backup_error(context,
1168 : "file \"%s\" should contain %llu bytes, but read %llu bytes",
1169 0 : relpath, (unsigned long long) m->size,
1170 : (unsigned long long) bytes_read);
1171 0 : return;
1172 : }
1173 :
1174 : /* Get the final checksum. */
1175 93250 : checksumlen = pg_checksum_final(&checksum_ctx, checksumbuf);
1176 93250 : if (checksumlen < 0)
1177 : {
1178 0 : report_backup_error(context,
1179 : "could not finalize checksum of file \"%s\"",
1180 : relpath);
1181 0 : return;
1182 : }
1183 :
1184 : /* And check it against the manifest. */
1185 93250 : if (checksumlen != m->checksum_length)
1186 0 : report_backup_error(context,
1187 : "file \"%s\" has checksum of length %d, but expected %d",
1188 : relpath, m->checksum_length, checksumlen);
1189 93250 : else if (memcmp(checksumbuf, m->checksum_payload, checksumlen) != 0)
1190 6 : report_backup_error(context,
1191 : "checksum mismatch for file \"%s\"",
1192 : relpath);
1193 : }
1194 :
1195 : /*
1196 : * Attempt to parse the WAL files required to restore from backup using
1197 : * pg_waldump.
1198 : */
1199 : static void
1200 100 : parse_required_wal(verifier_context *context, char *pg_waldump_path,
1201 : char *wal_directory)
1202 : {
1203 100 : manifest_data *manifest = context->manifest;
1204 100 : manifest_wal_range *this_wal_range = manifest->first_wal_range;
1205 :
1206 200 : while (this_wal_range != NULL)
1207 : {
1208 : char *pg_waldump_cmd;
1209 :
1210 100 : pg_waldump_cmd = psprintf("\"%s\" --quiet --path=\"%s\" --timeline=%u --start=%X/%X --end=%X/%X\n",
1211 : pg_waldump_path, wal_directory, this_wal_range->tli,
1212 100 : LSN_FORMAT_ARGS(this_wal_range->start_lsn),
1213 100 : LSN_FORMAT_ARGS(this_wal_range->end_lsn));
1214 100 : fflush(NULL);
1215 100 : if (system(pg_waldump_cmd) != 0)
1216 4 : report_backup_error(context,
1217 : "WAL parsing failed for timeline %u",
1218 : this_wal_range->tli);
1219 :
1220 100 : this_wal_range = this_wal_range->next;
1221 : }
1222 100 : }
1223 :
1224 : /*
1225 : * Report a problem with the backup.
1226 : *
1227 : * Update the context to indicate that we saw an error, and exit if the
1228 : * context says we should.
1229 : */
1230 : void
1231 2042 : report_backup_error(verifier_context *context, const char *pg_restrict fmt,...)
1232 : {
1233 : va_list ap;
1234 :
1235 2042 : va_start(ap, fmt);
1236 2042 : pg_log_generic_v(PG_LOG_ERROR, PG_LOG_PRIMARY, gettext(fmt), ap);
1237 2042 : va_end(ap);
1238 :
1239 2042 : context->saw_any_error = true;
1240 2042 : if (context->exit_on_error)
1241 2 : exit(1);
1242 2040 : }
1243 :
1244 : /*
1245 : * Report a fatal error and exit
1246 : */
1247 : void
1248 14 : report_fatal_error(const char *pg_restrict fmt,...)
1249 : {
1250 : va_list ap;
1251 :
1252 14 : va_start(ap, fmt);
1253 14 : pg_log_generic_v(PG_LOG_ERROR, PG_LOG_PRIMARY, gettext(fmt), ap);
1254 14 : va_end(ap);
1255 :
1256 14 : exit(1);
1257 : }
1258 :
1259 : /*
1260 : * Is the specified relative path, or some prefix of it, listed in the set
1261 : * of paths to ignore?
1262 : *
1263 : * Note that by "prefix" we mean a parent directory; for this purpose,
1264 : * "aa/bb" is not a prefix of "aa/bbb", but it is a prefix of "aa/bb/cc".
1265 : */
1266 : bool
1267 240346 : should_ignore_relpath(verifier_context *context, const char *relpath)
1268 : {
1269 : SimpleStringListCell *cell;
1270 :
1271 1461542 : for (cell = context->ignore_list.head; cell != NULL; cell = cell->next)
1272 : {
1273 1223606 : const char *r = relpath;
1274 1223606 : char *v = cell->val;
1275 :
1276 1713408 : while (*v != '\0' && *r == *v)
1277 489802 : ++r, ++v;
1278 :
1279 1223606 : if (*v == '\0' && (*r == '\0' || *r == '/'))
1280 2410 : return true;
1281 : }
1282 :
1283 237936 : return false;
1284 : }
1285 :
1286 : /*
1287 : * Create a chain of archive streamers appropriate for verifying a given
1288 : * archive.
1289 : */
1290 : static astreamer *
1291 58 : create_archive_verifier(verifier_context *context, char *archive_name,
1292 : Oid tblspc_oid, pg_compress_algorithm compress_algo)
1293 : {
1294 58 : astreamer *streamer = NULL;
1295 :
1296 : /* Should be here only for tar backup */
1297 : Assert(context->format == 't');
1298 :
1299 : /* Last step is the actual verification. */
1300 58 : streamer = astreamer_verify_content_new(streamer, context, archive_name,
1301 : tblspc_oid);
1302 :
1303 : /* Before that we must parse the tar file. */
1304 58 : streamer = astreamer_tar_parser_new(streamer);
1305 :
1306 : /* Before that we must decompress, if archive is compressed. */
1307 58 : if (compress_algo == PG_COMPRESSION_GZIP)
1308 6 : streamer = astreamer_gzip_decompressor_new(streamer);
1309 52 : else if (compress_algo == PG_COMPRESSION_LZ4)
1310 6 : streamer = astreamer_lz4_decompressor_new(streamer);
1311 46 : else if (compress_algo == PG_COMPRESSION_ZSTD)
1312 0 : streamer = astreamer_zstd_decompressor_new(streamer);
1313 :
1314 58 : return streamer;
1315 : }
1316 :
1317 : /*
1318 : * Print a progress report based on the global variables.
1319 : *
1320 : * Progress report is written at maximum once per second, unless the finished
1321 : * parameter is set to true.
1322 : *
1323 : * If finished is set to true, this is the last progress report. The cursor
1324 : * is moved to the next line.
1325 : */
1326 : static void
1327 88386 : progress_report(bool finished)
1328 : {
1329 : static pg_time_t last_progress_report = 0;
1330 : pg_time_t now;
1331 88386 : int percent_size = 0;
1332 : char totalsize_str[32];
1333 : char donesize_str[32];
1334 :
1335 88386 : if (!show_progress)
1336 88382 : return;
1337 :
1338 1708 : now = time(NULL);
1339 1708 : if (now == last_progress_report && !finished)
1340 1704 : return; /* Max once per second */
1341 :
1342 4 : last_progress_report = now;
1343 4 : percent_size = total_size ? (int) ((done_size * 100 / total_size)) : 0;
1344 :
1345 4 : snprintf(totalsize_str, sizeof(totalsize_str), UINT64_FORMAT,
1346 : total_size / 1024);
1347 4 : snprintf(donesize_str, sizeof(donesize_str), UINT64_FORMAT,
1348 : done_size / 1024);
1349 :
1350 4 : fprintf(stderr,
1351 4 : _("%*s/%s kB (%d%%) verified"),
1352 4 : (int) strlen(totalsize_str),
1353 : donesize_str, totalsize_str, percent_size);
1354 :
1355 : /*
1356 : * Stay on the same line if reporting to a terminal and we're not done
1357 : * yet.
1358 : */
1359 4 : fputc((!finished && isatty(fileno(stderr))) ? '\r' : '\n', stderr);
1360 : }
1361 :
1362 : /*
1363 : * Print out usage information and exit.
1364 : */
1365 : static void
1366 2 : usage(void)
1367 : {
1368 2 : printf(_("%s verifies a backup against the backup manifest.\n\n"), progname);
1369 2 : printf(_("Usage:\n %s [OPTION]... BACKUPDIR\n\n"), progname);
1370 2 : printf(_("Options:\n"));
1371 2 : printf(_(" -e, --exit-on-error exit immediately on error\n"));
1372 2 : printf(_(" -F, --format=p|t backup format (plain, tar)\n"));
1373 2 : printf(_(" -i, --ignore=RELATIVE_PATH ignore indicated path\n"));
1374 2 : printf(_(" -m, --manifest-path=PATH use specified path for manifest\n"));
1375 2 : printf(_(" -n, --no-parse-wal do not try to parse WAL files\n"));
1376 2 : printf(_(" -P, --progress show progress information\n"));
1377 2 : printf(_(" -q, --quiet do not print any output, except for errors\n"));
1378 2 : printf(_(" -s, --skip-checksums skip checksum verification\n"));
1379 2 : printf(_(" -w, --wal-directory=PATH use specified path for WAL files\n"));
1380 2 : printf(_(" -V, --version output version information, then exit\n"));
1381 2 : printf(_(" -?, --help show this help, then exit\n"));
1382 2 : printf(_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
1383 2 : printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
1384 2 : }
|
