1 use std
::collections
::HashSet
;
2 use std
::sync
::{Arc, Mutex}
;
3 use std
::sync
::atomic
::{Ordering, AtomicUsize}
;
4 use std
::time
::Instant
;
6 use anyhow
::{bail, format_err, Error}
;
25 tools
::ParallelHandler
,
26 tools
::fs
::lock_dir_noblock_shared
,
29 fn verify_blob(datastore
: Arc
<DataStore
>, backup_dir
: &BackupDir
, info
: &FileInfo
) -> Result
<(), Error
> {
31 let blob
= datastore
.load_blob(backup_dir
, &info
.filename
)?
;
33 let raw_size
= blob
.raw_size();
34 if raw_size
!= info
.size
{
35 bail
!("wrong size ({} != {})", info
.size
, raw_size
);
38 let csum
= openssl
::sha
::sha256(blob
.raw_data());
39 if csum
!= info
.csum
{
40 bail
!("wrong index checksum");
43 match blob
.crypt_mode()?
{
44 CryptMode
::Encrypt
=> Ok(()),
46 // digest already verified above
47 blob
.decode(None
, None
)?
;
50 CryptMode
::SignOnly
=> bail
!("Invalid CryptMode for blob"),
54 fn rename_corrupted_chunk(
55 datastore
: Arc
<DataStore
>,
57 worker
: &dyn TaskState
,
59 let (path
, digest_str
) = datastore
.chunk_path(digest
);
62 let mut new_path
= path
.clone();
64 new_path
.set_file_name(format
!("{}.{}.bad", digest_str
, counter
));
65 if new_path
.exists() && counter
< 9 { counter += 1; }
else { break; }
68 match std
::fs
::rename(&path
, &new_path
) {
70 task_log
!(worker
, "corrupted chunk renamed to {:?}", &new_path
);
74 std
::io
::ErrorKind
::NotFound
=> { /* ignored */ }
,
75 _
=> task_log
!(worker
, "could not rename corrupted chunk {:?} - {}", &path
, err
)
81 fn verify_index_chunks(
82 datastore
: Arc
<DataStore
>,
83 index
: Box
<dyn IndexFile
+ Send
>,
84 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
85 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8; 32]>>>,
86 crypt_mode
: CryptMode
,
87 worker
: Arc
<dyn TaskState
+ Send
+ Sync
>,
88 ) -> Result
<(), Error
> {
90 let errors
= Arc
::new(AtomicUsize
::new(0));
92 let start_time
= Instant
::now();
94 let mut read_bytes
= 0;
95 let mut decoded_bytes
= 0;
97 let worker2
= Arc
::clone(&worker
);
98 let datastore2
= Arc
::clone(&datastore
);
99 let corrupt_chunks2
= Arc
::clone(&corrupt_chunks
);
100 let verified_chunks2
= Arc
::clone(&verified_chunks
);
101 let errors2
= Arc
::clone(&errors
);
103 let decoder_pool
= ParallelHandler
::new(
104 "verify chunk decoder", 4,
105 move |(chunk
, digest
, size
): (DataBlob
, [u8;32], u64)| {
106 let chunk_crypt_mode
= match chunk
.crypt_mode() {
108 corrupt_chunks2
.lock().unwrap().insert(digest
);
109 task_log
!(worker2
, "can't verify chunk, unknown CryptMode - {}", err
);
110 errors2
.fetch_add(1, Ordering
::SeqCst
);
116 if chunk_crypt_mode
!= crypt_mode
{
119 "chunk CryptMode {:?} does not match index CryptMode {:?}",
123 errors2
.fetch_add(1, Ordering
::SeqCst
);
126 if let Err(err
) = chunk
.verify_unencrypted(size
as usize, &digest
) {
127 corrupt_chunks2
.lock().unwrap().insert(digest
);
128 task_log
!(worker2
, "{}", err
);
129 errors2
.fetch_add(1, Ordering
::SeqCst
);
130 rename_corrupted_chunk(datastore2
.clone(), &digest
, &worker2
);
132 verified_chunks2
.lock().unwrap().insert(digest
);
139 for pos
in 0..index
.index_count() {
141 worker
.check_abort()?
;
142 crate::tools
::fail_on_shutdown()?
;
144 let info
= index
.chunk_info(pos
).unwrap();
145 let size
= info
.size();
147 if verified_chunks
.lock().unwrap().contains(&info
.digest
) {
148 continue; // already verified
151 if corrupt_chunks
.lock().unwrap().contains(&info
.digest
) {
152 let digest_str
= proxmox
::tools
::digest_to_hex(&info
.digest
);
153 task_log
!(worker
, "chunk {} was marked as corrupt", digest_str
);
154 errors
.fetch_add(1, Ordering
::SeqCst
);
158 match datastore
.load_chunk(&info
.digest
) {
160 corrupt_chunks
.lock().unwrap().insert(info
.digest
);
161 task_log
!(worker
, "can't verify chunk, load failed - {}", err
);
162 errors
.fetch_add(1, Ordering
::SeqCst
);
163 rename_corrupted_chunk(datastore
.clone(), &info
.digest
, &worker
);
167 read_bytes
+= chunk
.raw_size();
168 decoder_pool
.send((chunk
, info
.digest
, size
))?
;
169 decoded_bytes
+= size
;
174 decoder_pool
.complete()?
;
176 let elapsed
= start_time
.elapsed().as_secs_f64();
178 let read_bytes_mib
= (read_bytes
as f64)/(1024.0*1024.0);
179 let decoded_bytes_mib
= (decoded_bytes
as f64)/(1024.0*1024.0);
181 let read_speed
= read_bytes_mib
/elapsed
;
182 let decode_speed
= decoded_bytes_mib
/elapsed
;
184 let error_count
= errors
.load(Ordering
::SeqCst
);
188 " verified {:.2}/{:.2} MiB in {:.2} seconds, speed {:.2}/{:.2} MiB/s ({} errors)",
197 if errors
.load(Ordering
::SeqCst
) > 0 {
198 bail
!("chunks could not be verified");
204 fn verify_fixed_index(
205 datastore
: Arc
<DataStore
>,
206 backup_dir
: &BackupDir
,
208 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
209 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
210 worker
: Arc
<dyn TaskState
+ Send
+ Sync
>,
211 ) -> Result
<(), Error
> {
213 let mut path
= backup_dir
.relative_path();
214 path
.push(&info
.filename
);
216 let index
= datastore
.open_fixed_reader(&path
)?
;
218 let (csum
, size
) = index
.compute_csum();
219 if size
!= info
.size
{
220 bail
!("wrong size ({} != {})", info
.size
, size
);
223 if csum
!= info
.csum
{
224 bail
!("wrong index checksum");
232 info
.chunk_crypt_mode(),
237 fn verify_dynamic_index(
238 datastore
: Arc
<DataStore
>,
239 backup_dir
: &BackupDir
,
241 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
242 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
243 worker
: Arc
<dyn TaskState
+ Send
+ Sync
>,
244 ) -> Result
<(), Error
> {
246 let mut path
= backup_dir
.relative_path();
247 path
.push(&info
.filename
);
249 let index
= datastore
.open_dynamic_reader(&path
)?
;
251 let (csum
, size
) = index
.compute_csum();
252 if size
!= info
.size
{
253 bail
!("wrong size ({} != {})", info
.size
, size
);
256 if csum
!= info
.csum
{
257 bail
!("wrong index checksum");
265 info
.chunk_crypt_mode(),
270 /// Verify a single backup snapshot
272 /// This checks all archives inside a backup snapshot.
273 /// Errors are logged to the worker log.
276 /// - Ok(true) if verify is successful
277 /// - Ok(false) if there were verification errors
278 /// - Err(_) if task was aborted
279 pub fn verify_backup_dir(
280 datastore
: Arc
<DataStore
>,
281 backup_dir
: &BackupDir
,
282 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
283 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
284 worker
: Arc
<dyn TaskState
+ Send
+ Sync
>,
286 ) -> Result
<bool
, Error
> {
288 let _guard_res
= lock_dir_noblock_shared(
289 &datastore
.snapshot_path(&backup_dir
),
291 "locked by another operation");
292 if let Err(err
) = _guard_res
{
295 "SKIPPED: verify {}:{} - could not acquire snapshot lock: {}",
303 let mut manifest
= match datastore
.load_manifest(&backup_dir
) {
304 Ok((manifest
, _
)) => manifest
,
308 "verify {}:{} - manifest load error: {}",
317 task_log
!(worker
, "verify {}:{}", datastore
.name(), backup_dir
);
319 let mut error_count
= 0;
321 let mut verify_result
= VerifyState
::Ok
;
322 for info
in manifest
.files() {
323 let result
= proxmox
::try_block
!({
324 task_log
!(worker
, " check {}", info
.filename
);
325 match archive_type(&info
.filename
)?
{
326 ArchiveType
::FixedIndex
=>
331 verified_chunks
.clone(),
332 corrupt_chunks
.clone(),
335 ArchiveType
::DynamicIndex
=>
336 verify_dynamic_index(
340 verified_chunks
.clone(),
341 corrupt_chunks
.clone(),
344 ArchiveType
::Blob
=> verify_blob(datastore
.clone(), &backup_dir
, info
),
348 worker
.check_abort()?
;
349 crate::tools
::fail_on_shutdown()?
;
351 if let Err(err
) = result
{
354 "verify {}:{}/{} failed: {}",
361 verify_result
= VerifyState
::Failed
;
366 let verify_state
= SnapshotVerifyState
{
367 state
: verify_result
,
370 manifest
.unprotected
["verify_state"] = serde_json
::to_value(verify_state
)?
;
371 datastore
.store_manifest(&backup_dir
, manifest
)
372 .map_err(|err
| format_err
!("unable to store manifest blob - {}", err
))?
;
377 /// Verify all backups inside a backup group
379 /// Errors are logged to the worker log.
382 /// - Ok((count, failed_dirs)) where failed_dirs had verification errors
383 /// - Err(_) if task was aborted
384 pub fn verify_backup_group(
385 datastore
: Arc
<DataStore
>,
387 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
388 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
389 progress
: Option
<(usize, usize)>, // (done, snapshot_count)
390 worker
: Arc
<dyn TaskState
+ Send
+ Sync
>,
392 ) -> Result
<(usize, Vec
<String
>), Error
> {
394 let mut errors
= Vec
::new();
395 let mut list
= match group
.list_backups(&datastore
.base_path()) {
400 "verify group {}:{} - unable to list backups: {}",
405 return Ok((0, errors
));
409 task_log
!(worker
, "verify group {}:{}", datastore
.name(), group
);
411 let (done
, snapshot_count
) = progress
.unwrap_or((0, list
.len()));
414 BackupInfo
::sort_list(&mut list
, false); // newest first
417 if !verify_backup_dir(
420 verified_chunks
.clone(),
421 corrupt_chunks
.clone(),
425 errors
.push(info
.backup_dir
.to_string());
427 if snapshot_count
!= 0 {
428 let pos
= done
+ count
;
429 let percentage
= ((pos
as f64) * 100.0)/(snapshot_count
as f64);
432 "percentage done: {:.2}% ({} of {} snapshots)",
443 /// Verify all backups inside a datastore
445 /// Errors are logged to the worker log.
448 /// - Ok(failed_dirs) where failed_dirs had verification errors
449 /// - Err(_) if task was aborted
450 pub fn verify_all_backups(
451 datastore
: Arc
<DataStore
>,
452 worker
: Arc
<dyn TaskState
+ Send
+ Sync
>,
454 ) -> Result
<Vec
<String
>, Error
> {
455 let mut errors
= Vec
::new();
457 let mut list
= match BackupGroup
::list_groups(&datastore
.base_path()) {
460 .filter(|group
| !(group
.backup_type() == "host" && group
.backup_id() == "benchmark"))
461 .collect
::<Vec
<BackupGroup
>>(),
465 "verify datastore {} - unable to list backups: {}",
473 list
.sort_unstable();
475 let mut snapshot_count
= 0;
476 for group
in list
.iter() {
477 snapshot_count
+= group
.list_backups(&datastore
.base_path())?
.len();
480 // start with 16384 chunks (up to 65GB)
481 let verified_chunks
= Arc
::new(Mutex
::new(HashSet
::with_capacity(1024*16)));
483 // start with 64 chunks since we assume there are few corrupt ones
484 let corrupt_chunks
= Arc
::new(Mutex
::new(HashSet
::with_capacity(64)));
486 task_log
!(worker
, "verify datastore {} ({} snapshots)", datastore
.name(), snapshot_count
);
490 let (count
, mut group_errors
) = verify_backup_group(
493 verified_chunks
.clone(),
494 corrupt_chunks
.clone(),
495 Some((done
, snapshot_count
)),
499 errors
.append(&mut group_errors
);