These performance options, introduced in kernel 5.9, configures
dm-crypt to bypass read or write workqueues and run encryption
synchronously.
Also support persistent storage of these flags for LUKS2.
We need to use the iv_large_sectors flag and correct sector size
for the crypt segments for these devices. Used sector size is
read from the device header. This commit also adds two new test
images with 4k sectors.
Fixes: #557
Kernel 5.7 adds support for optional discard/TRIM operation
for dm-integrity (available only for internal hash, not for LUKS2
with integrity).
This patch adds support for the new option.
This patch adds CRYPT_VERITY_ROOT_HASH_SIGNATURE flag to verity info.
Veritysetup status now display "with signature" if an active
device was activated with root hash signature.
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]
This patch adds support for fixed padding to cryptsetup.
* Cryptsetup will accept superblocks version 4.
* If the dm-integrity target version is greater than 1.4, cryptsetup will
add a flag "fix_padding" to the dm-integrity target arguments.
There is still one quirk: if we have an old libdm without
DM_DEVICE_GET_TARGET_VERSION and if dm-integrity module is not loaded,
cryptsetup will not detect that it can use the "fix_padding" option.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
All set_segment funcions must use uin64_t everywhere,
not size_t that is platform dependent.
The code later uses it correctly, it is just wrong function
prototype definitions.
Reported in
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=935702
(TODO: add a test for other segment types.)
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).
