linux-imx

/*

 * Security plug functions

 *

 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>

 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>

 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>

 * Copyright (C) 2016 Mellanox Technologies

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 */

​

#define pr_fmt(fmt) "LSM: " fmt

​

#include <linux/bpf.h>

#include <linux/capability.h>

#include <linux/dcache.h>

#include <linux/export.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/lsm_hooks.h>

#include <linux/integrity.h>

#include <linux/ima.h>

#include <linux/evm.h>

#include <linux/fsnotify.h>

#include <linux/mman.h>

#include <linux/mount.h>

#include <linux/personality.h>

#include <linux/backing-dev.h>

#include <linux/string.h>

#include <linux/msg.h>

#include <net/flow.h>

​

#define MAX_LSM_EVM_XATTR   2

​

/* How many LSMs were built into the kernel? */

#define LSM_COUNT (__end_lsm_info - __start_lsm_info)

​

struct security_hook_heads security_hook_heads __lsm_ro_after_init;

static ATOMIC_NOTIFIER_HEAD(lsm_notifier_chain);

​

static struct kmem_cache *lsm_file_cache;

static struct kmem_cache *lsm_inode_cache;

​

char *lsm_names;

static struct lsm_blob_sizes blob_sizes __lsm_ro_after_init;

​

/* Boot-time LSM user choice */

static __initdata const char *chosen_lsm_order;

static __initdata const char *chosen_major_lsm;

​

static __initconst const char * const builtin_lsm_order = CONFIG_LSM;

​

/* Ordered list of LSMs to initialize. */

static __initdata struct lsm_info **ordered_lsms;

static __initdata struct lsm_info *exclusive;

​

static __initdata bool debug;

#define init_debug(...)                     \

    do {                            \

        if (debug)                  \