securelevel_gt,

#include <sys/types.h>
#include <sys/proc.h>

int
securelevel_gt(struct ucred *cr, int level);

int
securelevel_ge(struct ucred *cr, int level);

These functions test the active security level against the given level. If the calling credential cr was imprisoned by the jail(2) system call, and has a different security level set than the host environment, the security level with the highest value is used.

The securelevel_gt() function will evaluate whether or not the active security level is greater than the supplied level.

The securelevel_ge() function will evaluate whether or not the active security level is greater than or equal to the supplied level.

These functions return EPERM if condition evaluated to true, and 0 otherwise.

securelevel(7)