пользовательский интерфейс маркировки SELinux (userspace SELinux labeling interface)
Имя (Name)
selabel_open, selabel_close - userspace SELinux labeling
interface
Синопсис (Synopsis)
#include <selinux/selinux.h>
#include <selinux/label.h>
struct selabel_handle *selabel_open(int backend,
const struct selinux_opt
*options,
unsigned nopt);
void selabel_close(struct selabel_handle *hnd);
Описание (Description)
selabel_open() is used to initialize a labeling handle to be used
for lookup operations. The backend argument specifies which
backend is to be opened; the list of current backends appears in
BACKENDS below.
The options argument should be NULL or a pointer to an array of
selinux_opt structures of length nopt:
struct selinux_opt {
int type;
const char *value;
};
The available option types are described in GLOBAL OPTIONS below
as well as in the documentation for each individual backend. The
return value on success is a non-NULL value for use in subsequent
label operations.
selabel_close() terminates use of a handle, freeing any internal
resources associated with it. After this call has been made, the
handle must not be used again.
GLOBAL OPTIONS
Global options which may be passed to selabel_open() include the
following:
SELABEL_OPT_UNUSED
The option with a type code of zero is a no-op. Thus an
array of options may be initizalized to zero and any
untouched elements will not cause an error.
SELABEL_OPT_VALIDATE
A non-null value for this option enables context
validation. By default, security_check_context(3) is
used; a custom validation function can be provided via
selinux_set_callback(3). Note that an invalid context may
not be treated as an error unless it is actually
encountered during a lookup operation.
SELABEL_OPT_DIGEST
A non-null value for this option enables the generation of
an SHA1 digest of the spec files loaded as described in
selabel_digest(3)
BACKENDS
SELABEL_CTX_FILE
File contexts backend, described in selabel_file(5).
SELABEL_CTX_MEDIA
Media contexts backend, described in selabel_media(5).
SELABEL_CTX_X
X Windows contexts backend, described in selabel_x(5).
SELABEL_CTX_DB
Database objects contexts backend, described in
selabel_db(5).
Возвращаемое значение (Return value)
A non-NULL handle value is returned on success. On error, NULL
is returned and errno is set appropriately.
