TTY_PERM  (default: 0600, type: int)

   Mode for TTY devices


FAILURE_SLEEP  (default: 5, type: float)

   Number of seconds to sleep on login failure.


ERROR_SLEEP  (default: 2, type: float)

   Number of seconds to sleep on error.


TIMEOUT_SECONDS  (default: 60, type: int)

   Number of seconds before timeout when waiting for a passphrase.


OWN_VCSA (default: undefinied, type: #ifdef)

   Take ownership of and change mode of VCSA device 


OWN_VCS (default: undefinied, type: #ifdef)

   Take ownership of and change mode of VCS device