Wipe and disable the segment. Also support the factory reset ioctl for
a complete wipe of the entire drive with a specific argument.
Signed-off-by: Luca Boccassi <bluca@debian.org>
Extends avaiable methods for retrieving device volume key.
The volume key now may be extracted using passphrase, keyfile
(passphrase in a file) or token (LUKS2 only).
For LUKS devices, it returns generated volume key after
sucessfull crypt_format where new volume key got generated.
Fixes: #777.
The crypt_keyslot_add_by_keyslot_context & associated
helper functions allow more options when adding new
keyslot. For example there was no simple way of
adding new LUKS2 keyslot when the only active keyslot
could be unlocked by passphrase (KEK) provided by LUKS2 token
(plugin). Now all available options for unlocking keyslots
may also be used when creating new keyslot and it combine
as called needs.
The available methods (keyslot contexts) are:
passphrase, keyfile, key (binary representation) and LUSK2 token.
This reverts commit 367cb7a761
and retains original crypt_reencrypt() symbol marked as deprecated
in favour of new crypt_reencrypt_run(). This makes cryptsetup 2.4.0
release fully backward compatible.
Reverts commit 96d83455ca partially. It is not necessary to
have specific crypt_activate_by_token_type call. Users
may use crypt_activate_by_token_pin with pin argument set to NULL
and achieve same goal as with crypt_activate_by_token_type.
Add API call that can directly print JSON metadata area from LUKS2 device.
For commandline it also adds --dump-json-metadata option for luksDump action.
Note that the binary metadata (UUID, version etc) is not part of this output.
(We reserve flags parameter to be able to add this later.)
Fixes: #511
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.
Introducing new version of crypt_reencrypt symbol including
previously missing usrptr parameter. This change should be
backward compatible for existing libcryptsetup users
until next recompilation where it needs to be fixed.
Optional parameter root hash signature is added that can be added to
veritysetup.
The signature file is opened and the signature is added to the keyring.
The kernel will use the signature to validate the roothash.
Usage: veritysetup open <data_device> name <hash_device> <root_hash> --root-hash-signature=<roothash_p7_sig_file>
Signed-off-by: Jaskaran Khurana <jaskarankhurana@linux.microsoft.com>
Signed-off-by: Luca Boccassi <luca.boccassi@microsoft.com>
[Original patch rewritten by Milan Broz]
If user has volume key available, LUKS device can be resumed
directly using provided volume key.
No keyslot derivation is needed, only key digest is checked.
Fixes: #502.
This patch makes available LUKS2 per-keyslot encryption settings to user.
In LUKS2, keyslot can use different encryption that data.
We can use new crypt_keyslot_get_encryption and crypt_keyslot_set_encryption
API calls to set/get this encryption.
For cryptsetup new --keyslot-cipher and --keyslot-key-size options are added.
The default keyslot encryption algorithm (if cannot be derived from data encryption)
is now available as configure options (default is aes-xts-plain64 with 512-bits key).
NOTE: default was increased from 256-bits.
The crypt_set_data_offset sets the data offset for LUKS and LUKS2 devices
to specified value in 512-byte sectors.
This value should replace alignment calculation in LUKS param structures.
The keyfile interface was designed, well, for keyfiles.
Unfortunately, a keyfile can be placed on a device and the size_t offset
can overflow.
We have to introduce new set of fucntions that allows 64bit offsets even on 32bit systems:
- crypt_resume_by_keyfile_device_offset
- crypt_keyslot_add_by_keyfile_device_offset
- crypt_activate_by_keyfile_device_offset
- crypt_keyfile_device_read
The new functions have added _device_ in name.
Old functions are just internall wrappers around these.
Also cryptsetup --keyfile-offset and --new-keyfile-offset must now
process 64bit offsets.
For more info see issue 359.
