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62 Commits

Author SHA1 Message Date
Milan Broz
bd0ef58b3a Update copyright notice to include 2024 year. 2024-01-23 16:10:44 +01:00
Milan Broz
72f799b393 Update Copyright year. 2023-02-09 17:11:18 +01:00
Milan Broz
ab975bc1c4 Update copyright year. 
And unify format in several places.
 2022-01-29 10:43:02 +01:00
Milan Broz
d1d9dd8e20 Update Copyright year. 2021-01-25 22:00:25 +01:00
Milan Broz
f5910d83c4 Add option for large IV to storage wrapper. 
Also implement some test vectors and use the same limits
as in dm-crypt (IV offset alignnment).
 2020-05-29 10:59:24 +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
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
Milan Broz
91ba22b157 Do not try to remove device that was not succesfully activated. 2019-04-29 16:10:57 +02:00
Ondrej Kozina
a0540cafb3 alter crypt_storage interface 
rename sector_start -> iv_start (it's now a iv shift for subsequent
en/decrypt operations)

rename count -> length. We accept length in bytes now and perform sanity
checks at the crypt_storage_init and crypt_storage_decrypt (or encrypt)
respectively.

rename sector -> offset. It's in bytes as well. Sanity checks inside
crypt_storage functions.
 2019-03-05 17:07:45 +01:00
Ondrej Kozina
e229f79741 Open device in locked mode if needed. 2019-03-01 21:43:31 +01:00
Milan Broz
a6f5ce8c7b Update copyright year. 
And unify name copyright format.
 2019-01-25 09:45:57 +01:00
Ondrej Kozina
39a014f601 dm backend with support for multi-segment devices. 
Support for multi-segment devices is requirement for online
reencryption to work. Introducing modififed dm backend that
splits data structures describing active device and individual
dm target (or segment).
 2019-01-07 13:07:45 +01:00
Ondrej Kozina
120ebea917 Split low level code for creating dm devices. 
The separate code for reloading device tables
will be used in later features.
 2019-01-01 21:42:46 +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
825fc895dc Fix some signed/unsigned comparison warnings. 2018-10-14 20:36:45 +02:00
Milan Broz
1d7749a40f Show better errors if kesylot decryption fails. 
This happens also in cipher check where the old message was
very confusing.
 2018-10-11 15:41:35 +02:00
Ondrej Kozina
d41b1a7560 Unify checks for misaligned values. 2018-09-25 08:51:51 +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
Milan Broz
b00a87d8fa Remove trailing EOL for verbose and error messages. 2018-04-26 10:38:17 +02:00
Milan Broz
1fe014dbae Update copyright year. 2018-01-20 17:55:21 +01:00
Milan Broz
d399dfa792 Add error hint for wrongly formatted cipher strings in LUKS1. 2018-01-19 11:09:06 +01:00
Ondrej Kozina
82d81b9e86 extend use of lseek_blockwise functions 2017-12-07 13:01:04 +01:00
Milan Broz
e0cacef52e Align legacy keyslot temporary device according to keyslot alignment. 
For some strange filesystems (nfs) we get big block size (1MB).

For temporary keyslot devices this mapping does not make sense and
can cause problem with detached headers that are smaller (contains
exactly the slot size).
 2017-12-06 17:07:24 +01:00
Milan Broz
c56bdee177 Add backend support for new device-mapper kernel options. 
This patch adds support for using keyring for volume key
and support for new integrity fields for dm-crypt.

Also helpers for searching disk by id.

To be used later.
 2017-09-24 19:49:35 +02:00
Milan Broz
3efa00d59a Revert deferred flag for keyslots and temp devices. 
It could cause races later, replacing with error device is enough.
 2017-06-24 09:57:22 +02:00
Milan Broz
32d5e59ab6 Implement deferred removal of device. 
This can be used in some automated systems and allows device
to be removed after the last user mapping closes it.
 2017-06-23 14:41:54 +02:00
Milan Broz
73030aa5fb Make block size size_t type. 
And fix all related comparisons and functions.
 2017-06-08 14:39:54 +02:00
Milan Broz
34bf809e51 Use device alignment wrapper. 
And cache the value to not call ioctl on every block read/write.
 2017-06-08 09:30:53 +02:00
Milan Broz
98368c4770 Update copyright years. 2017-03-12 13:17:15 +01:00
Ondrej Kozina
16fab74ab1 code cleanup related to devfd checks 
alter all checks for devfd value after device_open to
less than zero insted of equals to -1. device_open will
return values different from -1 in case error happens.

In LUKSv1 device_open should always return -1 in case of
error but this check is safer.

The rest is just formating improvement.
 2016-06-08 13:12:06 +02:00
Milan Broz
89f795d7b4 Fix keyslot device access for devices not supporting O_DIRECT. 2014-08-08 14:49:38 +02:00
Milan Broz
dfd46df8a5 Properly fail for unsupported IVs. 2014-06-29 10:38:50 +02:00
Milan Broz
25cd4f3a1d Add debug info for crypto wrapper in LUKS keyslot encryption. 2014-06-28 21:50:05 +02:00
Milan Broz
a3c0f6784b Process LUKS keyslots in userspace through kernel crypto wrapper. 
This allow LUKS handling without requiring root privilege.

The dmcrypt device-mapper is used only for device activation now.
 2014-06-01 21:34:21 +02:00
Milan Broz
fe4175b551 Fix some extended compile warning. 2013-01-10 17:26:19 +01:00
Milan Broz
29f21208a0 Change License from GPLv2 only to GPLv2+ ("or any later"). 
Agreed by all copyright authors.
 2012-12-29 11:33:54 +01:00
Milan Broz
3b4424226f Fix non-translated messages. 2012-12-29 11:11:23 +01:00
Milan Broz
d742e01a32 Remove signal handling from LUKS keyencryption and simplify code. 2012-12-11 15:39:47 +01:00
Milan Broz
1685aa5978 Proper handle error in device block get. 2012-08-28 13:30:17 +02:00
Milan Broz
6874f564c1 Remove unused includes. 2012-08-28 13:16:03 +02:00
Milan Broz
4882f70040 Replace round_up macro with function. 2012-08-28 13:11:02 +02:00
Milan Broz
1d5788f779 Set context for DM log for all DM backend entries. 
Try to handle error if run as non-root user better.
 2012-08-14 19:17:13 +02:00
Milan Broz
97224b072a Add context to DM helpers. 
(To be used later.)
 2012-08-14 16:25:21 +02:00
Milan Broz
48332d248f Remove debug line. 2012-08-13 17:16:37 +02:00
Milan Broz
07815c24cd Print better error message if device is read-only etc. 2012-08-13 16:54:41 +02:00
Milan Broz
65f975655c New device access backend. 
Allocate loop device late (only when real block device needed).
Rework underlying device/file access functions.
Move all device (and ioctl) access to utils_device.c.

Allows using file where appropriate without allocation loop device.
 2012-08-12 22:00:17 +02:00