The crc32c selection has been already using the pointer-based approach
so drop the cpuid detection and use our common code for that.
Signed-off-by: David Sterba <dsterba@suse.com>
Change how sha256 implementation is selected. Instead of an if-else
check in the block processing function select the best version and assign
the function pointer. This is slightly faster.
At this point the selection is not implemented properly in
hash-speedtest so all results are from the fastest version. This will
be fixed once all algorithms are converted.
Signed-off-by: David Sterba <dsterba@suse.com>
Change how blake2 implementation is selected. Instead of an if-else check
inside blake2b_compress each time, select the best one and assign the
function pointer. This is slightly faster.
At this point the selection is not implemented properly in
hash-speedtest so all results are from the fastest version. This will
be fixed once all algorithms are converted.
Signed-off-by: David Sterba <dsterba@suse.com>
Prepare a single location that will detect or set accelerated versions
of hash algorithms. Right now it's the crc32c, blake2 and sha256 do
an if-else switch while crc32c sets a function pointer.
Signed-off-by: David Sterba <dsterba@suse.com>
Add the GPL v2 header to files where it was missing and is not from an
external source, update to the most recent version with the address.
Signed-off-by: David Sterba <dsterba@suse.com>
https://github.com/smuellerDD/libkcapi allows user-space to access the
Linux kernel crypto API. Uses netlink interface and exports easy to use
APIs.
Signed-off-by: David Sterba <dsterba@suse.com>
For environments that require certified implementations of cryptographic
primitives allow to select a library providing them. The requirements
are SHA256 and BLAKE2 (with the 2b variant and 256 bit digest).
For now there are two: libgrcrypt and libsodium (openssl does not
provide the BLAKE2b-256). Accellerated versions are typically provided
and automatically selected.
Signed-off-by: David Sterba <dsterba@suse.com>
xxhash's state and results are always in little, but in progs after the
hash was calculated it was copied to the final buffer via memcpy,
meaning it'd be parsed as a big endian number on big endian machines.
This is incompatible with the kernel implementation of xxhash which
results in erroneous "checksum didn't match" errors on mount.
Fix it by using put_unaligned_le64 which always ensures the resulting
checksum will be copied in little endian format as the kernel expects
it.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206835
Fixes: f070ece2e9 ("btrfs-progs: add xxhash64 to mkfs")
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Add definition, crypto wrappers and support to mkfs for blake2 for
checksumming. There are 2 aliases either blake2 or blake2b.
Signed-off-by: David Sterba <dsterba@suse.com>
Add the definition to the checksum types and let mkfs accept it.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David Sterba <dsterba@suse.com>
