linux-imx

// SPDX-License-Identifier: GPL-2.0-or-later

/* audit.c -- Auditing support

 * Gateway between the kernel (e.g., selinux) and the user-space audit daemon.

 * System-call specific features have moved to auditsc.c

 *

 * Copyright 2003-2007 Red Hat Inc., Durham, North Carolina.

 * All Rights Reserved.

 *

 * Written by Rickard E. (Rik) Faith <faith@redhat.com>

 *

 * Goals: 1) Integrate fully with Security Modules.

 *    2) Minimal run-time overhead:

 *       a) Minimal when syscall auditing is disabled (audit_enable=0).

 *       b) Small when syscall auditing is enabled and no audit record

 *      is generated (defer as much work as possible to record

 *      generation time):

 *      i) context is allocated,

 *      ii) names from getname are stored without a copy, and

 *      iii) inode information stored from path_lookup.

 *    3) Ability to disable syscall auditing at boot time (audit=0).

 *    4) Usable by other parts of the kernel (if audit_log* is called,

 *       then a syscall record will be generated automatically for the

 *       current syscall).

 *    5) Netlink interface to user-space.

 *    6) Support low-overhead kernel-based filtering to minimize the

 *       information that must be passed to user-space.

 *

 * Audit userspace, documentation, tests, and bug/issue trackers:

 *  https://github.com/linux-audit

 */

​

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

​

#include <linux/file.h>

#include <linux/init.h>

#include <linux/types.h>

#include <linux/atomic.h>

#include <linux/mm.h>

#include <linux/export.h>

#include <linux/slab.h>

#include <linux/err.h>

#include <linux/kthread.h>

#include <linux/kernel.h>

#include <linux/syscalls.h>

#include <linux/spinlock.h>

#include <linux/rcupdate.h>

#include <linux/mutex.h>

#include <linux/gfp.h>

#include <linux/pid.h>

​

#include <linux/audit.h>

​

#include <net/sock.h>

#include <net/netlink.h>

#include <linux/skbuff.h>

#ifdef CONFIG_SECURITY

#include <linux/security.h>

#endif

#include <linux/freezer.h>

#include <linux/pid_namespace.h>

#include <net/netns/generic.h>

​

#include "audit.h"