e4crypt: if salt is explicitly provided to add_key, then use it
Providing -S and a path to 'add_key' previously exhibited an
unintuitive behavior: instead of using the salt explicitly provided by
the user, e4crypt would use the salt obtained via
EXT4_IOC_GET_ENCRYPTION_PWSALT on the path. This was because
set_policy() was still called with NULL as salt.
With this change we now remember the explicitly provided salt (if any)
and use it as argument for set_policy().
Eventually
e4crypt add_key -S s:my-spicy-salt /foo
will now actually use 'my-spicy-salt' and not something else as salt
for the policy set on /foo.
Signed-off-by: Florian Schmaus <flo@geekplace.eu>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 files changed
