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Command: mac_prepare_file_label | Section: 3 | Source: FreeBSD | File: mac_prepare_file_label.3.gz
MAC_PREPARE(3) FreeBSD Library Functions Manual MAC_PREPARE(3)
NAME
mac_prepare, mac_prepare_type, mac_prepare_file_label,
mac_prepare_ifnet_label, mac_prepare_process_label - allocate appropriate
storage for mac_t
SYNOPSIS
#include <sys/mac.h>
int
mac_prepare(mac_t *mac, const char *elements);
int
mac_prepare_type(mac_t *mac, const char *name);
int
mac_prepare_file_label(mac_t *mac);
int
mac_prepare_ifnet_label(mac_t *mac);
int
mac_prepare_process_label(mac_t *mac);
DESCRIPTION
The mac_prepare family of functions allocates the appropriate amount of
storage and initializes *mac for use by mac_get(3). When the resulting
label is passed into the mac_get(3) functions, the kernel will attempt to
fill in the label elements specified when the label was prepared.
Elements are specified in a nul-terminated string, using commas to
delimit fields. Element names may be prefixed with the `?' character to
indicate that a failure by the kernel to retrieve that element should not
be considered fatal.
The mac_prepare() function accepts a list of policy names as a parameter,
and allocates the storage to fit those label elements accordingly. The
remaining functions in the family make use of system defaults defined in
mac.conf(5) instead of an explicit elements argument, deriving the
default from the specified object type.
mac_prepare_type() allocates the storage to fit an object label of the
type specified by the name argument. The mac_prepare_file_label(),
mac_prepare_ifnet_label(), and mac_prepare_process_label() functions are
equivalent to invocations of mac_prepare_type() with arguments of "file",
"ifnet", and "process" respectively.
RETURN VALUES
Upon successful completion, the value 0 is returned; otherwise the
value -1 is returned and the global variable errno is set to indicate the
error.
SEE ALSO
mac(3), mac_free(3), mac_get(3), mac_is_present(3), mac_set(3), mac(4),
mac.conf(5), maclabel(7)
STANDARDS
POSIX.1e is described in IEEE POSIX.1e draft 17.
HISTORY
Support for Mandatory Access Control was introduced in FreeBSD 5.0 as
part of the TrustedBSD Project. Support for generic object types first
appeared in FreeBSD 5.2.
FreeBSD 14.1-RELEASE-p8 September 21, 2023 FreeBSD 14.1-RELEASE-p8