is_context_customizable(3) [centos man page]

is_context_customizable(3)				     SELinux API documentation					is_context_customizable(3)

NAME

       is_context_customizable - check whether SELinux context type is customizable by the administrator

SYNOPSIS

       #include <selinux/selinux.h>

       int is_context_customizable(security_context_t scon);

DESCRIPTION

       This function checks whether the type of scon is in the /etc/selinux/{SELINUXTYPE}/context/customizable_types file.  A customizable type is
       a file context type that administrators set on files, usually to allow certain domains to share the file content. restorecon and  setfiles,
       by default, leave these context in place.

RETURN VALUE

       Returns 1 if security context is customizable or 0 if it is not.  Returns -1 on error.

FILE

       /etc/selinux/{SELINUXTYPE}/context/customizable_types

SEE ALSO

       selinux(8)

dwalsh@redhat.com						  10 January 2005					is_context_customizable(3)

security_compute_av(3)					     SELinux API documentation					    security_compute_av(3)

NAME

       security_compute_av,  security_compute_av_flags,  security_compute_create, security_compute_relabel, security_compute_member, security_com-
       pute_user, security_get_initial_context - query the SELinux policy database in the kernel.

SYNOPSIS

       #include <selinux/selinux.h>

       #include <selinux/flask.h>

       int security_compute_av(security_context_t scon,  security_context_t  tcon,  security_class_t  tclass,  access_vector_t	requested,  struct
       av_decision *avd);

       int  security_compute_av_flags(security_context_t scon, security_context_t tcon, security_class_t tclass, access_vector_t requested, struct
       av_decision *avd);

       int security_compute_create(security_context_t scon, security_context_t tcon, security_class_t tclass, security_context_t *newcon);

       int security_compute_relabel(security_context_t scon, security_context_t tcon, security_class_t tclass, security_context_t *newcon);

       int security_compute_member(security_context_t scon, security_context_t tcon, security_class_t tclass, security_context_t *newcon);

       int security_compute_user(security_context_t scon, const char *username, security_context_t **con);

       int security_get_initial_context(const char *name, security_context_t "con );

       int selinux_check_access(const security_context_t scon, const security_context_t tcon, const char *class,  const  char  *perm,void  *audit-
       data);

       int selinux_check_passwd_access(access_vector_t requested);

       int checkPasswdAccess(access_vector_t requested);

DESCRIPTION

       security_compute_av  queries whether the policy permits the source context scon to access the target context tcon via class tclass with the
       requested access vector.  The decision is returned in avd.

       security_compute_av_flags is identical to security_compute_av but additionally sets the flags field of avd.  Currently  one  flag  is  sup-
       ported: SELINUX_AVD_FLAGS_PERMISSIVE, which indicates the decision is computed on a permissive domain.

       security_compute_create is used to compute a context to use for labeling a new object in a particular class based on a SID pair.

       security_compute_relabel  is  used to compute the new context to use when relabeling an object, it is used in the pam_selinux.so source and
       the newrole source to determine the correct label for the tty at login time, but can be used for other things.

       security_compute_member is used to compute the context to use when labeling a polyinstantiated object instance.

       security_compute_user is used to determine the set of user contexts that can be reached from  a	source	context.  It  is  mainly  used	by
       get_ordered_context_list.

       security_get_initial_context is used to get the context of a kernel initial security identifier specified by name

       selinux_check_access is used to check if the source context has the access permission for the specified class on the target context.

       selinux_check_passwd_access  is	used to check for a permission in the passwd class.  selinux_check_passwd_access uses getprevcon() for the
       source and target security contexts.

       checkPasswdAccess is a deprecated alias of the selinux_check_passwd_access function.

RETURN VALUE

       Returns zero on success or -1 on error.

SEE ALSO

       selinux(8), getcon(3), getfilecon(3), get_ordered_context_list(3)

russell@coker.com.au						  1 January 2004					    security_compute_av(3)