Previously, the cryptomount arguments were passed by global variable and
function call argument, neither of which are ideal. This change passes data
via a grub_cryptomount_args struct, which can be added to over time as
opposed to continually adding arguments to the cryptodisk scan and
recover_key.
As an example, passing a password as a cryptomount argument is implemented.
However, the backends are not implemented, so testing this will return a not
implemented error.
Also, add comments to cryptomount argument parsing to make it more obvious
which argument states are being handled.
Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
be62f0836c