security_getenforce(3) — Linux manual page


security_getenforce(3)  SELinux API documentation security_getenforce(3)

NAME         top

       security_getenforce, security_setenforce, security_deny_unknown,
       security_reject_unknown, security_get_checkreqprot - get or set
       the enforcing state of SELinux

SYNOPSIS         top

       #include <selinux/selinux.h>

       int security_getenforce(void);

       int security_setenforce(int value);

       int security_deny_unknown(void);

       int security_reject_unknown(void);

       int security_get_checkreqprot(void);

DESCRIPTION         top

       security_getenforce() returns 0 if SELinux is running in
       permissive mode, 1 if it is running in enforcing mode, and -1 on

       security_setenforce() sets SELinux to enforcing mode if the value
       1 is passed in, and sets it to permissive mode if 0 is passed in.
       On success 0 is returned, on error -1 is returned.

       security_deny_unknown() returns 0 if SELinux treats policy
       queries on undefined object classes or permissions as being
       allowed, 1 if such queries are denied, and -1 on error.

       security_reject_unknown() returns 1 if the current policy was
       built with handle-unknown=reject and SELinux would reject loading
       it, if it did not define all kernel object classes and
       permissions. In this state, when selinux_set_mapping() and
       selinux_check_access() are used with an undefined userspace class
       or permission, an error is returned and errno is set to EINVAL.

       It returns 0 if the current policy was built with handle-
       unknown=allow or handle-unknown=deny. In this state, policy
       queries are treated according to security_deny_unknown().  -1 is
       returned on error.

       security_get_checkreqprot() can be used to determine whether
       SELinux is configured to check the protection requested by the
       application or the actual protection that will be applied by the
       kernel (including the effects of READ_IMPLIES_EXEC) on mmap and
       mprotect calls.  It returns 0 if SELinux checks the actual
       protection, 1 if it checks the requested protection, and -1 on

SEE ALSO         top


COLOPHON         top

       This page is part of the selinux (Security-Enhanced Linux user-
       space libraries and tools) project.  Information about the
       project can be found at 
       ⟨⟩.  If you have a
       bug report for this manual page, see
       This page was obtained from the project's upstream Git repository
       ⟨⟩ on 2024-06-14.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2023-05-11.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to         1 January 2004       security_getenforce(3)

Pages that refer to this page: security_disable(3)security_load_policy(3)selinux_status_open(3)