Add support for authenticated file systems using HMAC(SHA256) as
checksumming algorithm.
Example:
mkfs.btrfs --csum hmac-sha256 --auth-key 0123456789 -f test.img
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Update the summary of 'fi usage' where the multiple profiles will be
listed by type, like:
Multiple profiles: yes (data, metadata)
The string is returned from btrfs_test_for_multiple_profiles so the
callers don't have to assemble it together from the other profile
strings.
Signed-off-by: David Sterba <dsterba@suse.com>
The warning header was printed always, even if there weren't multiple
block group profiles. This also fixes the mixed block group profile
detection.
Signed-off-by: David Sterba <dsterba@suse.com>
Use simpler output format for easier parsing and place each block group
type on a separate line.
Example output:
WARNING: Multiple block group profiles detected, see 'man btrfs(5)'.
WARNING: Data: single, raid1
Signed-off-by: David Sterba <dsterba@suse.com>
Move 'single' as the first in the list of the multiple block groups, as
it's the default block group and the simplest.
Example output:
WARNING: data -> [single, raid1], metadata -> [single], system -> [single]
WARNING: data+metadata -> [single], system -> [raid1]
Signed-off-by: David Sterba <dsterba@suse.com>
Simpify sprint_profiles so it does not take the output parameters
optionally and add stubs to btrfs_test_for_multiple_profiles_by_fd.
This allows to remove all conditionals and reduce parameters of
sprint_profiles so that the output is returned directly.
Signed-off-by: David Sterba <dsterba@suse.com>
The term 'mixed' is confusing as it's commonly used for mised block
group profiles created by 'mkfs.btrfs --mixed'. We're interested in
multiple profiles for each type, so use the term 'multiple'.
Signed-off-by: David Sterba <dsterba@suse.com>
Add code to show a warning if a mixed profiles filesystem is detected.
Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
Signed-off-by: David Sterba <dsterba@suse.com>
When compiling with clang, this warning is shown:
common/utils.c:404:3: warning: declaration does not declare anything [-Wmissing-declarations]
__attribute__ ((fallthrough));
This attribute seems to silence the same warning in GCC. Changing this
attribute with /* fallthrough */ fixes the warning for both gcc and
clang.
Full support for the attribute will be in clang 10, gcc supports that
now. Let's use what works for both and switch to the attribute in the
future.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
With the introduction of xxhash64 to btrfs-progs we created a crypto/
directory for all the hashes used in btrfs (although no
cryptographically secure hash is there yet).
Move the crc32c implementation from kernel-lib/ to crypto/ as well so we
have all hashes consolidated.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David Sterba <dsterba@suse.com>
Discovered with cppcheck. Fix signed/unsigned int mismatches, sizeof and
long formats.
Pull-request: #197
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The argument isn't changed inside the function.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
[ split from the original patch ]
Signed-off-by: David Sterba <dsterba@suse.com>
This adds a global --format option to request extended output formats
from each command.
We currently only support text mode. Command help reports what
output formats are available for each command. Global help reports
what valid formats are.
If an invalid format is requested, an error is reported and lists the
valid formats.
Each command sets a bitmask that describes which formats it is capable
of outputting. If a globally valid format is requested of a command
that doesn't support it, an error is reported and command usage dumped.
Commands don't need to specify that they support text output. All
commands are required to output text.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
[ use global config instead of passing cmd_context ]
Signed-off-by: David Sterba <dsterba@suse.com>
