The caam encryption check was only done from fw_env_write and fw_env_read
functions, which are not called when using the functions exported as a library.
Move the check_caam_encryption() call to fw_env_open(), which is called from
all code paths. A similar check for AES encryption cannot be moved because it
requires the AES key as an argument.
https://jira.digi.com/browse/DEL-3616
Signed-off-by: Diaz de Grenu, Jose <Jose.DiazdeGrenu@digi.com>
This patch adds the functionality to automatically detect if the enviroment
is encrypted (through the device tree). If it is, the environment is encrypted
and decrypted as required in a transparent way for the user.
https://jira.digi.com/browse/DEL-2836
Signed-off-by: Diaz de Grenu, Jose <Jose.DiazdeGrenu@digi.com>
Diaz de Grenu, Jose