Commit Graph

207 Commits

Author SHA1 Message Date
Ondrej Kozina
44aabc3ae4 Drop reload of metadata in reencryption initialization. 2019-06-12 12:36:50 +02:00
Ondrej Kozina
bbdf9b2745 Read and compare metadata sequence id after taking write lock. 2019-06-12 12:36:46 +02:00
Ondrej Kozina
96a87170f7 Return usage count from device locking functions. 2019-06-12 11:51:08 +02:00
Ondrej Kozina
9c3a020ecf Remove useless debug message from keyslot dump. 2019-05-27 16:23:56 +02:00
Ondrej Kozina
4c4cc55bb7 Wipe backup segment data after reencryption is finished. 2019-05-27 16:05:21 +02:00
Ondrej Kozina
f4c2e7e629 Implement LUKS2 reencrypt keyslot dump. 2019-05-27 15:27:23 +02:00
Ondrej Kozina
0c725a257d Compare moved segment specific size against real device size only. 2019-05-24 17:29:56 +02:00
Ondrej Kozina
bd6af68bc5 Add support for explicit reencryption recovery in request. 2019-05-24 17:07:37 +02:00
Ondrej Kozina
13050f73c1 Properly finished reencryption after recovery. 2019-05-24 17:07:37 +02:00
Ondrej Kozina
5472fb0c56 Refactor reencryption recovery during activation. 2019-05-24 17:07:36 +02:00
Ondrej Kozina
60d26be325 Load volume key in keyring when activated by token.
LUKS2 should use keyring for dm-crypt volume keys by default
when possible. crypt_activate_by_token didn't load keys in
keyring by default. It was a bug.
2019-05-21 18:08:00 +02:00
Ondrej Kozina
013d0d3753 Rename internal reencrypt enum to REENC_PROTECTION_NONE. 2019-05-21 18:08:00 +02:00
Ondrej Kozina
31cd41bfe4 Add support for reencryption of initial device part.
It's useful to reencrypt only initial device part only.
For example with golden image reencryption it may be useful
to reencrypt only first X bytes of device because we know
the rest of device is empty.
2019-05-21 15:54:07 +02:00
Ondrej Kozina
af6c321395 Set default length for reencryption with resilience 'none' only. 2019-05-21 15:54:07 +02:00
Ondrej Kozina
1923928fdc Drop duplicate error message from reencrypt load. 2019-05-21 15:54:07 +02:00
Ondrej Kozina
8c8a68d850 Add CRYPT_REENCRYPT_RESUME_ONLY flag. 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
8545e8496b Fix memleak in reencryption with moved segment. 2019-05-07 17:17:34 +02:00
Milan Broz
237021ec15 Fix some warnings in static analysis. 2019-05-07 13:44:43 +02:00
Milan Broz
1f91fe7a2c Use JSON-debug wrappers. 2019-05-03 14:02:43 +02:00
Ondrej Kozina
a7f80a2770 Add resilient LUKS2 reencryption library code. 2019-05-02 16:44:23 +02:00
Ondrej Kozina
345385376a Add missing validation check for area type specification. 2019-04-29 16:10:57 +02:00
Milan Broz
dbe9db26fc Never serialize memory-hard KDF for small amount of memory. 2019-04-29 16:10:57 +02:00
Ondrej Kozina
86b2736480 Drop unused type parameter from LUKS2_keyslot_find_empty() 2019-04-23 10:41:56 +02:00
Milan Broz
cfe2fb66ab Fix some untranslated error messages. 2019-04-23 10:41:06 +02:00
Milan Broz
1b49ea4061 Add global serialization lock for memory hard PBKDF.
This is very ugly workaround for situation when multiple
devices are being activated in parallel (systemd crypttab)
and system  instead of returning ENOMEM use OOM killer
to randomly kill processes.

This flag is intended to be used only in very specific situations.
2019-03-29 11:58:12 +01:00
Ondrej Kozina
80a435f00b Write keyslot binary data and metadata holding single lock. 2019-03-25 11:37:32 +01:00
Ondrej Kozina
fdcd5806b1 Allow to change requirements flag in-memory only. 2019-03-25 11:37:32 +01:00
Ondrej Kozina
fea2e0be4f Add algorithm for searching largest gap in keyslots area. 2019-03-13 14:56:31 +01:00
Milan Broz
751f5dfda3 Move error message for a keyslot area search. 2019-03-13 14:56:31 +01:00
Ondrej Kozina
d5f71e66f9 Allow digest segment (un)binding for all segments at once. 2019-03-13 14:56:31 +01:00
Ondrej Kozina
03e810ec72 Split crypt_drop_keyring_key in two different routines.
crypt_drop_keyring_key function allow to drop all keys in keyring
assocatiated with passed volume key list.

crypt_drop_keyring_key_by_description is used to drop independent key.
2019-03-13 14:56:31 +01:00
Ondrej Kozina
6c6f4bcd45 Add signed int64 json helpers. 2019-03-13 14:56:31 +01:00
Ondrej Kozina
304942302b Introduce CRYPT_DEFAULT_SEGMENT abstraction.
Default segment is no longer constant segment with id 0.
2019-03-13 14:56:31 +01:00
Ondrej Kozina
8dc1a74df8 Adapt existing code to future reencryption changes. 2019-03-13 14:56:31 +01:00
Ondrej Kozina
e295d01505 Adding new functions later used in reencryption. 2019-03-13 14:56:31 +01:00
Ondrej Kozina
56b571fcaa Use const before vk in all digest verify functions. 2019-03-08 08:52:47 +01:00
Ondrej Kozina
46bf3c9e9c Add segment create helpers. 2019-03-08 08:44:51 +01:00
Ondrej Kozina
361fb22954 Remove helper get_first_data_offset completely. 2019-03-08 08:43:19 +01:00
Ondrej Kozina
203fe0f4bf Move get_first_data_offset to luks2_segment.c 2019-03-08 08:42:23 +01:00
Ondrej Kozina
36ac5fe735 Move LUKS2 segments handling in separate file. 2019-03-08 08:39:32 +01:00
Ondrej Kozina
7569519530 Allow unbound keyslots to be assigned to existing digest.
If passed key matches any existing digest we will not create
new digest but assign the keyslot to already existing one.

Because reencryption should be able to create more than one
keyslot assigned to new key digest.

TODO: Tests for the new feature
2019-03-08 08:37:27 +01:00
Ondrej Kozina
a848179286 Add json_object_copy wrapper. 2019-03-08 08:27:18 +01:00
Ondrej Kozina
868cc52415 Abort conversion to LUKS1 with incompatible sector size. 2019-03-05 17:08:05 +01:00
Ondrej Kozina
8c168cc337 Introduce file for luks2 segments handling. 2019-03-05 17:08:02 +01:00
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
26772f8184 Return NULL explicitly if keyslot is missing.
json_object_object_get_ex return parameter is
undefined if function returns false.
2019-03-01 20:30:21 +01:00
Ondrej Kozina
8f8ad83861 Validate metadata before writting binary keyslot area. 2019-03-01 20:29:49 +01:00