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84 Commits

Author SHA1 Message Date
Ondrej Kozina
81c56a8395 Move assert include in internal header files. 2022-11-16 16:54:33 +01:00
Milan Broz
82b56300cd Wrap some very long lines. 2022-10-01 22:35:57 +02:00
Milan Broz
e921991ba5 Annotate LGTM TOCTOU condition. 
The race here is not avoidable.
 2022-06-05 20:38:22 +02:00
Milan Broz
ab975bc1c4 Update copyright year. 
And unify format in several places.
 2022-01-29 10:43:02 +01:00
Milan Broz
413b484774 Add some fixes and workarounds for gcc-11 static analyzer. 
Not everything is a real bug (false positive rate is very high here),
but the code is actually more readable.
 2021-05-18 17:28:47 +02:00
Ondrej Kozina
8d0e90b90a Autodetect optimal encryption sector size on LUKS2 format. 2021-03-24 16:14:35 +01:00
Ondrej Kozina
1aeb0a1f6e Set data device loop block size to encryption sector size. 2021-03-23 16:40:57 +01:00
Ondrej Kozina
ce80f7c5b1 Add support for larger block size in loop. 2021-03-23 16:40:57 +01:00
Milan Broz
fea4074e8f Check internal device functions for NULL device. 
Most of these functions already works even with device=NULL.

There can be some rare situations when this call could happen,
so be safe always.
(Like initialization for a device that disappears during init.)

Also see
https://bugzilla.redhat.com/show_bug.cgi?id=1932946
 2021-03-01 20:38:52 +01:00
Milan Broz
d1d9dd8e20 Update Copyright year. 2021-01-25 22:00:25 +01:00
Milan Broz
0c29321407 Introduce crypt_header_is_detached API call. 
crypt_header_is_detached checks if initialized LUKS context uses detached header
(LUKS header located on a different device than data.)

This is a runtime attribute, it does not say if a LUKS device requires detached header.
 2020-12-29 23:23:32 +01:00
Ondrej Kozina
a730d56e66 Do not print opt_io_size warning needlessly. 
In fallback path min_io_size and opt_io_size could be
same and the warning was confusing.
 2020-09-19 17:20:46 +02:00
Milan Broz
57d0f19bda Fix error message in previous commit. 2020-08-26 13:27:00 +02:00
Milan Broz
4cf663a661 Ignore optimal-io if not aligned to minimal page size 
This values is bogus on some systems and causes wrong alignment
for data area. Just ignore it there.

Fixes: #585.
 2020-08-26 13:17:26 +02:00
Milan Broz
b5fbd682f2 Move fcntl.h to internal defines and check for O_CLOEXEC. 2020-02-21 10:10:11 +01:00
Milan Broz
165e6c234c Fix some error and debug messages. 
Use BITLK as format name.

Avoid using doesn't -> does not.
 2020-01-11 22:10:59 +01:00
Milan Broz
080566a1fd Update copyright year. 2020-01-03 13:04:55 +01:00
Milan Broz
b03cb3f3d8 Export memory safe functions. 
Make crypt_safe_alloc/realloc/free and memzero part of API.
 2019-11-16 21:28:54 +01:00
Yuri Chornoivan
4143d9871e Fix minor typos 2019-06-28 12:02:39 +00:00
Ondrej Kozina
d4682b3b38 Cleanup translated messages id. 
- minimize count of almost identical message ids
- unify style for some messages
- remove some useless messages
 2019-06-27 10:23:42 +02:00
Seong-Joong Kim
07df177332 Fix a typo of comment 2019-06-24 22:31:52 -07:00
Ondrej Kozina
96a87170f7 Return usage count from device locking functions. 2019-06-12 11:51:08 +02:00
Ondrej Kozina
e92e320956 Add explicit device_close routine. 2019-05-24 17:29:56 +02:00
Ondrej Kozina
9159b5b120 Add coverity toctou annotation in device_open_excl. 
We can't avoid this race due to undefined behaviour if called with
O_EXCL flag on regular file.

Let's double-check fd with O_EXCL flag is actually open block device.
 2019-05-13 18:23:20 +02:00
Ondrej Kozina
2d0079905e Adapt device_open_excl to reusing of fds. 2019-05-10 21:05:31 +02:00
Ondrej Kozina
83c227d53c Sync device using internal write enabled descriptor. 2019-05-10 21:05:31 +02:00
Ondrej Kozina
ee57b865b0 Reuse device file desriptors. 2019-05-10 21:05:31 +02:00
Ondrej Kozina
a7f80a2770 Add resilient LUKS2 reencryption library code. 2019-05-02 16:44:23 +02:00
Ondrej Kozina
88b3924132 Update LUKS2 locks for atomic operations. 
Atomic operation requires to hold a lock for longer period than
single metadata I/O. Update locks so that we can:

- lock a device more than once (lock ref counting)
- reaquire read lock on already held write lock (write lock
  is stronger than read lock)
 2019-03-05 17:07:31 +01:00
Ondrej Kozina
a4d236eebe Add device_is_locked function. 2019-03-01 21:43:25 +01:00
Ondrej Kozina
b9c6a62437 Do not call fallocate on image file that is already large enough. 2019-02-07 18:41:06 +01:00
Milan Broz
a6f5ce8c7b Update copyright year. 
And unify name copyright format.
 2019-01-25 09:45:57 +01:00
Ondrej Kozina
1894d6e6ff Add devno comparison for bdevs in device_is_identical(). 2018-12-12 15:07:33 +01:00
Ondrej Kozina
1cc722d0cc Simplify device_is_identical. 
If any argument is null return false (with higher
priority than trivial identity check).

Also device_path can't return null if device struct gets
allocated succesfully.
 2018-12-12 15:06:59 +01:00
Milan Broz
2a1d58ed22 Check data device offset if it fits data device size in luksFormat. 2018-12-11 21:59:49 +01:00
Milan Broz
991ab5de64 Fixe more context propagation paths. 2018-11-27 16:09:45 +01:00
Milan Broz
7812214db6 Add context to device handling functions. 2018-11-27 14:19:57 +01:00
Milan Broz
a5a8467993 Use context in debug log messages. 
To use per-context logging even for debug messages
we need to use the same macro as for error logging.
 2018-11-27 13:37:20 +01:00
Milan Broz
7f0df99511 Properly parse errno to error message for devices. 2018-10-12 12:03:56 +02:00
Milan Broz
f01d044618 Print file name size instead of a loop device in error messages. 2018-10-11 15:40:22 +02:00
Milan Broz
7514786b20 Add an error message if device is unusable. 2018-10-04 20:00:12 +02:00
Milan Broz
69a844c654 Remove O_SYNC from device open and use fsync(). 
This speed up wipe operation considerably.
 2018-08-09 12:01:20 +02:00
Rafael Fontenelle
f35ec9771e Fix typos 
A bunch of typos reported by codespell, most of them comments in the code
 2018-07-21 07:24:25 -03:00
Ondrej Kozina
1bf5ff3e6e Open files in read-write mode for posix_fallocate. 
Unfortunately there exists some weird NFS variations requiring read
permissions for fallocate.
 2018-07-07 10:25:01 +02:00
Milan Broz
b00a87d8fa Remove trailing EOL for verbose and error messages. 2018-04-26 10:38:17 +02:00
Milan Broz
874c573bd4 Do not allow used block size larger than page size. 
Some filesystems (NFS) returns bogus blocksize (1MB).
Page-size io should always work and avoids increasing IO beyond aligned LUKS header.
 2018-04-24 16:36:11 +02:00
Milan Broz
23b01621ff Print better debug message for open with write mode. 2018-04-10 15:33:30 +02:00
Milan Broz
1fe014dbae Update copyright year. 2018-01-20 17:55:21 +01:00
Milan Broz
1ca439f4e0 Fix some warnings found during static analysis. 2018-01-20 14:42:05 +01:00
Milan Broz
b80278c04f Ignore device opt-io alignment if it is not multiple of minimal-io. 
Some USB enclosures seems to report bogus topology info.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1513820
 2017-11-21 15:39:36 +01:00