security.h

   1/*
   2 * Linux Security plug
   3 *
   4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
   5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
   6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
   7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
   8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
   9 * Copyright (C) 2016 Mellanox Techonologies
  10 *
  11 *	This program is free software; you can redistribute it and/or modify
  12 *	it under the terms of the GNU General Public License as published by
  13 *	the Free Software Foundation; either version 2 of the License, or
  14 *	(at your option) any later version.
  15 *
  16 *	Due to this file being licensed under the GPL there is controversy over
  17 *	whether this permits you to write a module that #includes this file
  18 *	without placing your module under the GPL.  Please consult a lawyer for
  19 *	advice before doing this.
  20 *
  21 */
  22
  23#ifndef __LINUX_SECURITY_H
  24#define __LINUX_SECURITY_H
  25
  26#include <linux/kernel_read_file.h>
  27#include <linux/key.h>
  28#include <linux/capability.h>
  29#include <linux/fs.h>
  30#include <linux/slab.h>
  31#include <linux/err.h>
  32#include <linux/string.h>
  33#include <linux/mm.h>
  34#include <linux/sockptr.h>
  35#include <linux/bpf.h>
  36#include <uapi/linux/lsm.h>
  37#include <linux/lsm/selinux.h>
  38#include <linux/lsm/smack.h>
  39#include <linux/lsm/apparmor.h>
  40#include <linux/lsm/bpf.h>
  41
  42struct linux_binprm;
  43struct cred;
  44struct rlimit;
  45struct kernel_siginfo;
  46struct sembuf;
  47struct kern_ipc_perm;
  48struct audit_context;
  49struct super_block;
  50struct inode;
  51struct dentry;
  52struct file;
  53struct vfsmount;
  54struct path;
  55struct qstr;
  56struct iattr;
  57struct fown_struct;
  58struct file_operations;
  59struct msg_msg;
  60struct xattr;
  61struct kernfs_node;
  62struct xfrm_sec_ctx;
  63struct mm_struct;
  64struct fs_context;
  65struct fs_parameter;
  66enum fs_value_type;
  67struct watch;
  68struct watch_notification;
  69struct lsm_ctx;
  70
  71/* Default (no) options for the capable function */
  72#define CAP_OPT_NONE 0x0
  73/* If capable should audit the security request */
  74#define CAP_OPT_NOAUDIT BIT(1)
  75/* If capable is being called by a setid function */
  76#define CAP_OPT_INSETID BIT(2)
  77
  78/* LSM Agnostic defines for security_sb_set_mnt_opts() flags */
  79#define SECURITY_LSM_NATIVE_LABELS	1
  80
  81struct ctl_table;
  82struct audit_krule;
  83struct user_namespace;
  84struct timezone;
  85
  86enum lsm_event {
  87	LSM_POLICY_CHANGE,
  88	LSM_STARTED_ALL,
  89};
  90
  91struct dm_verity_digest {
  92	const char *alg;
  93	const u8 *digest;
  94	size_t digest_len;
  95};
  96
  97enum lsm_integrity_type {
  98	LSM_INT_DMVERITY_SIG_VALID,
  99	LSM_INT_DMVERITY_ROOTHASH,
 100	LSM_INT_FSVERITY_BUILTINSIG_VALID,
 101};
 102
 103/*
 104 * These are reasons that can be passed to the security_locked_down()
 105 * LSM hook. Lockdown reasons that protect kernel integrity (ie, the
 106 * ability for userland to modify kernel code) are placed before
 107 * LOCKDOWN_INTEGRITY_MAX.  Lockdown reasons that protect kernel
 108 * confidentiality (ie, the ability for userland to extract
 109 * information from the running kernel that would otherwise be
 110 * restricted) are placed before LOCKDOWN_CONFIDENTIALITY_MAX.
 111 *
 112 * LSM authors should note that the semantics of any given lockdown
 113 * reason are not guaranteed to be stable - the same reason may block
 114 * one set of features in one kernel release, and a slightly different
 115 * set of features in a later kernel release. LSMs that seek to expose
 116 * lockdown policy at any level of granularity other than "none",
 117 * "integrity" or "confidentiality" are responsible for either
 118 * ensuring that they expose a consistent level of functionality to
 119 * userland, or ensuring that userland is aware that this is
 120 * potentially a moving target. It is easy to misuse this information
 121 * in a way that could break userspace. Please be careful not to do
 122 * so.
 123 *
 124 * If you add to this, remember to extend lockdown_reasons in
 125 * security/lockdown/lockdown.c.
 126 */
 127enum lockdown_reason {
 128	LOCKDOWN_NONE,
 129	LOCKDOWN_MODULE_SIGNATURE,
 130	LOCKDOWN_DEV_MEM,
 131	LOCKDOWN_EFI_TEST,
 132	LOCKDOWN_KEXEC,
 133	LOCKDOWN_HIBERNATION,
 134	LOCKDOWN_PCI_ACCESS,
 135	LOCKDOWN_IOPORT,
 136	LOCKDOWN_MSR,
 137	LOCKDOWN_ACPI_TABLES,
 138	LOCKDOWN_DEVICE_TREE,
 139	LOCKDOWN_PCMCIA_CIS,
 140	LOCKDOWN_TIOCSSERIAL,
 141	LOCKDOWN_MODULE_PARAMETERS,
 142	LOCKDOWN_MMIOTRACE,
 143	LOCKDOWN_DEBUGFS,
 144	LOCKDOWN_XMON_WR,
 145	LOCKDOWN_BPF_WRITE_USER,
 146	LOCKDOWN_DBG_WRITE_KERNEL,
 147	LOCKDOWN_RTAS_ERROR_INJECTION,
 148	LOCKDOWN_XEN_USER_ACTIONS,
 149	LOCKDOWN_INTEGRITY_MAX,
 150	LOCKDOWN_KCORE,
 151	LOCKDOWN_KPROBES,
 152	LOCKDOWN_BPF_READ_KERNEL,
 153	LOCKDOWN_DBG_READ_KERNEL,
 154	LOCKDOWN_PERF,
 155	LOCKDOWN_TRACEFS,
 156	LOCKDOWN_XMON_RW,
 157	LOCKDOWN_XFRM_SECRET,
 158	LOCKDOWN_CONFIDENTIALITY_MAX,
 159};
 160
 161/*
 162 * Data exported by the security modules
 163 */
 164struct lsm_prop {
 165	struct lsm_prop_selinux selinux;
 166	struct lsm_prop_smack smack;
 167	struct lsm_prop_apparmor apparmor;
 168	struct lsm_prop_bpf bpf;
 169};
 170
 171extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1];
 172
 173/* These functions are in security/commoncap.c */
 174extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
 175		       int cap, unsigned int opts);
 176extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
 177extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
 178extern int cap_ptrace_traceme(struct task_struct *parent);
 179extern int cap_capget(const struct task_struct *target, kernel_cap_t *effective,
 180		      kernel_cap_t *inheritable, kernel_cap_t *permitted);
 181extern int cap_capset(struct cred *new, const struct cred *old,
 182		      const kernel_cap_t *effective,
 183		      const kernel_cap_t *inheritable,
 184		      const kernel_cap_t *permitted);
 185extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
 186int cap_inode_setxattr(struct dentry *dentry, const char *name,
 187		       const void *value, size_t size, int flags);
 188int cap_inode_removexattr(struct mnt_idmap *idmap,
 189			  struct dentry *dentry, const char *name);
 190int cap_inode_need_killpriv(struct dentry *dentry);
 191int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
 192int cap_inode_getsecurity(struct mnt_idmap *idmap,
 193			  struct inode *inode, const char *name, void **buffer,
 194			  bool alloc);
 195extern int cap_mmap_addr(unsigned long addr);
 196extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
 197extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 198			  unsigned long arg4, unsigned long arg5);
 199extern int cap_task_setscheduler(struct task_struct *p);
 200extern int cap_task_setioprio(struct task_struct *p, int ioprio);
 201extern int cap_task_setnice(struct task_struct *p, int nice);
 202extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
 203
 204struct msghdr;
 205struct sk_buff;
 206struct sock;
 207struct sockaddr;
 208struct socket;
 209struct flowi_common;
 210struct dst_entry;
 211struct xfrm_selector;
 212struct xfrm_policy;
 213struct xfrm_state;
 214struct xfrm_user_sec_ctx;
 215struct seq_file;
 216struct sctp_association;
 217
 218#ifdef CONFIG_MMU
 219extern unsigned long mmap_min_addr;
 220extern unsigned long dac_mmap_min_addr;
 221#else
 222#define mmap_min_addr		0UL
 223#define dac_mmap_min_addr	0UL
 224#endif
 225
 226/*
 227 * A "security context" is the text representation of
 228 * the information used by LSMs.
 229 * This structure contains the string, its length, and which LSM
 230 * it is useful for.
 231 */
 232struct lsm_context {
 233	char	*context;	/* Provided by the module */
 234	u32	len;
 235	int	id;		/* Identifies the module */
 236};
 237
 238/*
 239 * Values used in the task_security_ops calls
 240 */
 241/* setuid or setgid, id0 == uid or gid */
 242#define LSM_SETID_ID	1
 243
 244/* setreuid or setregid, id0 == real, id1 == eff */
 245#define LSM_SETID_RE	2
 246
 247/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
 248#define LSM_SETID_RES	4
 249
 250/* setfsuid or setfsgid, id0 == fsuid or fsgid */
 251#define LSM_SETID_FS	8
 252
 253/* Flags for security_task_prlimit(). */
 254#define LSM_PRLIMIT_READ  1
 255#define LSM_PRLIMIT_WRITE 2
 256
 257/* forward declares to avoid warnings */
 258struct sched_param;
 259struct request_sock;
 260
 261/* bprm->unsafe reasons */
 262#define LSM_UNSAFE_SHARE	1
 263#define LSM_UNSAFE_PTRACE	2
 264#define LSM_UNSAFE_NO_NEW_PRIVS	4
 265
 266#ifdef CONFIG_MMU
 267extern int mmap_min_addr_handler(const struct ctl_table *table, int write,
 268				 void *buffer, size_t *lenp, loff_t *ppos);
 269#endif
 270
 271/* security_inode_init_security callback function to write xattrs */
 272typedef int (*initxattrs) (struct inode *inode,
 273			   const struct xattr *xattr_array, void *fs_data);
 274
 275
 276/* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
 277#define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
 278#define __data_id_stringify(dummy, str) #str,
 279
 280enum kernel_load_data_id {
 281	__kernel_read_file_id(__data_id_enumify)
 282};
 283
 284static const char * const kernel_load_data_str[] = {
 285	__kernel_read_file_id(__data_id_stringify)
 286};
 287
 288static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
 289{
 290	if ((unsigned)id >= LOADING_MAX_ID)
 291		return kernel_load_data_str[LOADING_UNKNOWN];
 292
 293	return kernel_load_data_str[id];
 294}
 295
 296/**
 297 * lsmprop_init - initialize a lsm_prop structure
 298 * @prop: Pointer to the data to initialize
 299 *
 300 * Set all secid for all modules to the specified value.
 301 */
 302static inline void lsmprop_init(struct lsm_prop *prop)
 303{
 304	memset(prop, 0, sizeof(*prop));
 305}
 306
 307#ifdef CONFIG_SECURITY
 308
 309/**
 310 * lsmprop_is_set - report if there is a value in the lsm_prop
 311 * @prop: Pointer to the exported LSM data
 312 *
 313 * Returns true if there is a value set, false otherwise
 314 */
 315static inline bool lsmprop_is_set(struct lsm_prop *prop)
 316{
 317	const struct lsm_prop empty = {};
 318
 319	return !!memcmp(prop, &empty, sizeof(*prop));
 320}
 321
 322int call_blocking_lsm_notifier(enum lsm_event event, void *data);
 323int register_blocking_lsm_notifier(struct notifier_block *nb);
 324int unregister_blocking_lsm_notifier(struct notifier_block *nb);
 325
 326/* prototypes */
 327extern int security_init(void);
 328extern int early_security_init(void);
 329extern u64 lsm_name_to_attr(const char *name);
 330
 331/* Security operations */
 332int security_binder_set_context_mgr(const struct cred *mgr);
 333int security_binder_transaction(const struct cred *from,
 334				const struct cred *to);
 335int security_binder_transfer_binder(const struct cred *from,
 336				    const struct cred *to);
 337int security_binder_transfer_file(const struct cred *from,
 338				  const struct cred *to, const struct file *file);
 339int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
 340int security_ptrace_traceme(struct task_struct *parent);
 341int security_capget(const struct task_struct *target,
 342		    kernel_cap_t *effective,
 343		    kernel_cap_t *inheritable,
 344		    kernel_cap_t *permitted);
 345int security_capset(struct cred *new, const struct cred *old,
 346		    const kernel_cap_t *effective,
 347		    const kernel_cap_t *inheritable,
 348		    const kernel_cap_t *permitted);
 349int security_capable(const struct cred *cred,
 350		       struct user_namespace *ns,
 351		       int cap,
 352		       unsigned int opts);
 353int security_quotactl(int cmds, int type, int id, const struct super_block *sb);
 354int security_quota_on(struct dentry *dentry);
 355int security_syslog(int type);
 356int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
 357int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
 358int security_bprm_creds_for_exec(struct linux_binprm *bprm);
 359int security_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
 360int security_bprm_check(struct linux_binprm *bprm);
 361void security_bprm_committing_creds(const struct linux_binprm *bprm);
 362void security_bprm_committed_creds(const struct linux_binprm *bprm);
 363int security_fs_context_submount(struct fs_context *fc, struct super_block *reference);
 364int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
 365int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
 366int security_sb_alloc(struct super_block *sb);
 367void security_sb_delete(struct super_block *sb);
 368void security_sb_free(struct super_block *sb);
 369void security_free_mnt_opts(void **mnt_opts);
 370int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
 371int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts);
 372int security_sb_remount(struct super_block *sb, void *mnt_opts);
 373int security_sb_kern_mount(const struct super_block *sb);
 374int security_sb_show_options(struct seq_file *m, struct super_block *sb);
 375int security_sb_statfs(struct dentry *dentry);
 376int security_sb_mount(const char *dev_name, const struct path *path,
 377		      const char *type, unsigned long flags, void *data);
 378int security_sb_umount(struct vfsmount *mnt, int flags);
 379int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
 380int security_sb_set_mnt_opts(struct super_block *sb,
 381				void *mnt_opts,
 382				unsigned long kern_flags,
 383				unsigned long *set_kern_flags);
 384int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 385				struct super_block *newsb,
 386				unsigned long kern_flags,
 387				unsigned long *set_kern_flags);
 388int security_move_mount(const struct path *from_path, const struct path *to_path);
 389int security_dentry_init_security(struct dentry *dentry, int mode,
 390				  const struct qstr *name,
 391				  const char **xattr_name,
 392				  struct lsm_context *lsmcxt);
 393int security_dentry_create_files_as(struct dentry *dentry, int mode,
 394					const struct qstr *name,
 395					const struct cred *old,
 396					struct cred *new);
 397int security_path_notify(const struct path *path, u64 mask,
 398					unsigned int obj_type);
 399int security_inode_alloc(struct inode *inode, gfp_t gfp);
 400void security_inode_free(struct inode *inode);
 401int security_inode_init_security(struct inode *inode, struct inode *dir,
 402				 const struct qstr *qstr,
 403				 initxattrs initxattrs, void *fs_data);
 404int security_inode_init_security_anon(struct inode *inode,
 405				      const struct qstr *name,
 406				      const struct inode *context_inode);
 407int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
 408void security_inode_post_create_tmpfile(struct mnt_idmap *idmap,
 409					struct inode *inode);
 410int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 411			 struct dentry *new_dentry);
 412int security_inode_unlink(struct inode *dir, struct dentry *dentry);
 413int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 414			   const char *old_name);
 415int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 416int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
 417int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
 418int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 419			  struct inode *new_dir, struct dentry *new_dentry,
 420			  unsigned int flags);
 421int security_inode_readlink(struct dentry *dentry);
 422int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
 423			       bool rcu);
 424int security_inode_permission(struct inode *inode, int mask);
 425int security_inode_setattr(struct mnt_idmap *idmap,
 426			   struct dentry *dentry, struct iattr *attr);
 427void security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
 428				 int ia_valid);
 429int security_inode_getattr(const struct path *path);
 430int security_inode_setxattr(struct mnt_idmap *idmap,
 431			    struct dentry *dentry, const char *name,
 432			    const void *value, size_t size, int flags);
 433int security_inode_set_acl(struct mnt_idmap *idmap,
 434			   struct dentry *dentry, const char *acl_name,
 435			   struct posix_acl *kacl);
 436void security_inode_post_set_acl(struct dentry *dentry, const char *acl_name,
 437				 struct posix_acl *kacl);
 438int security_inode_get_acl(struct mnt_idmap *idmap,
 439			   struct dentry *dentry, const char *acl_name);
 440int security_inode_remove_acl(struct mnt_idmap *idmap,
 441			      struct dentry *dentry, const char *acl_name);
 442void security_inode_post_remove_acl(struct mnt_idmap *idmap,
 443				    struct dentry *dentry,
 444				    const char *acl_name);
 445void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 446				  const void *value, size_t size, int flags);
 447int security_inode_getxattr(struct dentry *dentry, const char *name);
 448int security_inode_listxattr(struct dentry *dentry);
 449int security_inode_removexattr(struct mnt_idmap *idmap,
 450			       struct dentry *dentry, const char *name);
 451void security_inode_post_removexattr(struct dentry *dentry, const char *name);
 452int security_inode_file_setattr(struct dentry *dentry,
 453			      struct file_kattr *fa);
 454int security_inode_file_getattr(struct dentry *dentry,
 455			      struct file_kattr *fa);
 456int security_inode_need_killpriv(struct dentry *dentry);
 457int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
 458int security_inode_getsecurity(struct mnt_idmap *idmap,
 459			       struct inode *inode, const char *name,
 460			       void **buffer, bool alloc);
 461int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
 462int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
 463void security_inode_getlsmprop(struct inode *inode, struct lsm_prop *prop);
 464int security_inode_copy_up(struct dentry *src, struct cred **new);
 465int security_inode_copy_up_xattr(struct dentry *src, const char *name);
 466int security_inode_setintegrity(const struct inode *inode,
 467				enum lsm_integrity_type type, const void *value,
 468				size_t size);
 469int security_kernfs_init_security(struct kernfs_node *kn_dir,
 470				  struct kernfs_node *kn);
 471int security_file_permission(struct file *file, int mask);
 472int security_file_alloc(struct file *file);
 473void security_file_release(struct file *file);
 474void security_file_free(struct file *file);
 475int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 476int security_file_ioctl_compat(struct file *file, unsigned int cmd,
 477			       unsigned long arg);
 478int security_mmap_file(struct file *file, unsigned long prot,
 479			unsigned long flags);
 480int security_mmap_addr(unsigned long addr);
 481int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 482			   unsigned long prot);
 483int security_file_lock(struct file *file, unsigned int cmd);
 484int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
 485void security_file_set_fowner(struct file *file);
 486int security_file_send_sigiotask(struct task_struct *tsk,
 487				 struct fown_struct *fown, int sig);
 488int security_file_receive(struct file *file);
 489int security_file_open(struct file *file);
 490int security_file_post_open(struct file *file, int mask);
 491int security_file_truncate(struct file *file);
 492int security_task_alloc(struct task_struct *task, u64 clone_flags);
 493void security_task_free(struct task_struct *task);
 494int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
 495void security_cred_free(struct cred *cred);
 496int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
 497void security_transfer_creds(struct cred *new, const struct cred *old);
 498void security_cred_getsecid(const struct cred *c, u32 *secid);
 499void security_cred_getlsmprop(const struct cred *c, struct lsm_prop *prop);
 500int security_kernel_act_as(struct cred *new, u32 secid);
 501int security_kernel_create_files_as(struct cred *new, struct inode *inode);
 502int security_kernel_module_request(char *kmod_name);
 503int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
 504int security_kernel_post_load_data(char *buf, loff_t size,
 505				   enum kernel_load_data_id id,
 506				   char *description);
 507int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
 508			      bool contents);
 509int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
 510				   enum kernel_read_file_id id);
 511int security_task_fix_setuid(struct cred *new, const struct cred *old,
 512			     int flags);
 513int security_task_fix_setgid(struct cred *new, const struct cred *old,
 514			     int flags);
 515int security_task_fix_setgroups(struct cred *new, const struct cred *old);
 516int security_task_setpgid(struct task_struct *p, pid_t pgid);
 517int security_task_getpgid(struct task_struct *p);
 518int security_task_getsid(struct task_struct *p);
 519void security_current_getlsmprop_subj(struct lsm_prop *prop);
 520void security_task_getlsmprop_obj(struct task_struct *p, struct lsm_prop *prop);
 521int security_task_setnice(struct task_struct *p, int nice);
 522int security_task_setioprio(struct task_struct *p, int ioprio);
 523int security_task_getioprio(struct task_struct *p);
 524int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
 525			  unsigned int flags);
 526int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 527		struct rlimit *new_rlim);
 528int security_task_setscheduler(struct task_struct *p);
 529int security_task_getscheduler(struct task_struct *p);
 530int security_task_movememory(struct task_struct *p);
 531int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
 532			int sig, const struct cred *cred);
 533int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 534			unsigned long arg4, unsigned long arg5);
 535void security_task_to_inode(struct task_struct *p, struct inode *inode);
 536int security_create_user_ns(const struct cred *cred);
 537int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
 538void security_ipc_getlsmprop(struct kern_ipc_perm *ipcp, struct lsm_prop *prop);
 539int security_msg_msg_alloc(struct msg_msg *msg);
 540void security_msg_msg_free(struct msg_msg *msg);
 541int security_msg_queue_alloc(struct kern_ipc_perm *msq);
 542void security_msg_queue_free(struct kern_ipc_perm *msq);
 543int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
 544int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
 545int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
 546			      struct msg_msg *msg, int msqflg);
 547int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
 548			      struct task_struct *target, long type, int mode);
 549int security_shm_alloc(struct kern_ipc_perm *shp);
 550void security_shm_free(struct kern_ipc_perm *shp);
 551int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
 552int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
 553int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
 554int security_sem_alloc(struct kern_ipc_perm *sma);
 555void security_sem_free(struct kern_ipc_perm *sma);
 556int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
 557int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
 558int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
 559			unsigned nsops, int alter);
 560void security_d_instantiate(struct dentry *dentry, struct inode *inode);
 561int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
 562			 u32 __user *size, u32 flags);
 563int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
 564			 u32 size, u32 flags);
 565int security_getprocattr(struct task_struct *p, int lsmid, const char *name,
 566			 char **value);
 567int security_setprocattr(int lsmid, const char *name, void *value, size_t size);
 568int security_ismaclabel(const char *name);
 569int security_secid_to_secctx(u32 secid, struct lsm_context *cp);
 570int security_lsmprop_to_secctx(struct lsm_prop *prop, struct lsm_context *cp,
 571			       int lsmid);
 572int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
 573void security_release_secctx(struct lsm_context *cp);
 574void security_inode_invalidate_secctx(struct inode *inode);
 575int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
 576int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
 577int security_inode_getsecctx(struct inode *inode, struct lsm_context *cp);
 578int security_locked_down(enum lockdown_reason what);
 579int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len,
 580		      void *val, size_t val_len, u64 id, u64 flags);
 581int security_bdev_alloc(struct block_device *bdev);
 582void security_bdev_free(struct block_device *bdev);
 583int security_bdev_setintegrity(struct block_device *bdev,
 584			       enum lsm_integrity_type type, const void *value,
 585			       size_t size);
 586#else /* CONFIG_SECURITY */
 587
 588/**
 589 * lsmprop_is_set - report if there is a value in the lsm_prop
 590 * @prop: Pointer to the exported LSM data
 591 *
 592 * Returns true if there is a value set, false otherwise
 593 */
 594static inline bool lsmprop_is_set(struct lsm_prop *prop)
 595{
 596	return false;
 597}
 598
 599static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
 600{
 601	return 0;
 602}
 603
 604static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
 605{
 606	return 0;
 607}
 608
 609static inline  int unregister_blocking_lsm_notifier(struct notifier_block *nb)
 610{
 611	return 0;
 612}
 613
 614static inline u64 lsm_name_to_attr(const char *name)
 615{
 616	return LSM_ATTR_UNDEF;
 617}
 618
 619static inline void security_free_mnt_opts(void **mnt_opts)
 620{
 621}
 622
 623/*
 624 * This is the default capabilities functionality.  Most of these functions
 625 * are just stubbed out, but a few must call the proper capable code.
 626 */
 627
 628static inline int security_init(void)
 629{
 630	return 0;
 631}
 632
 633static inline int early_security_init(void)
 634{
 635	return 0;
 636}
 637
 638static inline int security_binder_set_context_mgr(const struct cred *mgr)
 639{
 640	return 0;
 641}
 642
 643static inline int security_binder_transaction(const struct cred *from,
 644					      const struct cred *to)
 645{
 646	return 0;
 647}
 648
 649static inline int security_binder_transfer_binder(const struct cred *from,
 650						  const struct cred *to)
 651{
 652	return 0;
 653}
 654
 655static inline int security_binder_transfer_file(const struct cred *from,
 656						const struct cred *to,
 657						const struct file *file)
 658{
 659	return 0;
 660}
 661
 662static inline int security_ptrace_access_check(struct task_struct *child,
 663					     unsigned int mode)
 664{
 665	return cap_ptrace_access_check(child, mode);
 666}
 667
 668static inline int security_ptrace_traceme(struct task_struct *parent)
 669{
 670	return cap_ptrace_traceme(parent);
 671}
 672
 673static inline int security_capget(const struct task_struct *target,
 674				   kernel_cap_t *effective,
 675				   kernel_cap_t *inheritable,
 676				   kernel_cap_t *permitted)
 677{
 678	return cap_capget(target, effective, inheritable, permitted);
 679}
 680
 681static inline int security_capset(struct cred *new,
 682				   const struct cred *old,
 683				   const kernel_cap_t *effective,
 684				   const kernel_cap_t *inheritable,
 685				   const kernel_cap_t *permitted)
 686{
 687	return cap_capset(new, old, effective, inheritable, permitted);
 688}
 689
 690static inline int security_capable(const struct cred *cred,
 691				   struct user_namespace *ns,
 692				   int cap,
 693				   unsigned int opts)
 694{
 695	return cap_capable(cred, ns, cap, opts);
 696}
 697
 698static inline int security_quotactl(int cmds, int type, int id,
 699				     const struct super_block *sb)
 700{
 701	return 0;
 702}
 703
 704static inline int security_quota_on(struct dentry *dentry)
 705{
 706	return 0;
 707}
 708
 709static inline int security_syslog(int type)
 710{
 711	return 0;
 712}
 713
 714static inline int security_settime64(const struct timespec64 *ts,
 715				     const struct timezone *tz)
 716{
 717	return cap_settime(ts, tz);
 718}
 719
 720static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 721{
 722	return __vm_enough_memory(mm, pages, !cap_vm_enough_memory(mm, pages));
 723}
 724
 725static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
 726{
 727	return 0;
 728}
 729
 730static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
 731						const struct file *file)
 732{
 733	return cap_bprm_creds_from_file(bprm, file);
 734}
 735
 736static inline int security_bprm_check(struct linux_binprm *bprm)
 737{
 738	return 0;
 739}
 740
 741static inline void security_bprm_committing_creds(const struct linux_binprm *bprm)
 742{
 743}
 744
 745static inline void security_bprm_committed_creds(const struct linux_binprm *bprm)
 746{
 747}
 748
 749static inline int security_fs_context_submount(struct fs_context *fc,
 750					   struct super_block *reference)
 751{
 752	return 0;
 753}
 754static inline int security_fs_context_dup(struct fs_context *fc,
 755					  struct fs_context *src_fc)
 756{
 757	return 0;
 758}
 759static inline int security_fs_context_parse_param(struct fs_context *fc,
 760						  struct fs_parameter *param)
 761{
 762	return -ENOPARAM;
 763}
 764
 765static inline int security_sb_alloc(struct super_block *sb)
 766{
 767	return 0;
 768}
 769
 770static inline void security_sb_delete(struct super_block *sb)
 771{ }
 772
 773static inline void security_sb_free(struct super_block *sb)
 774{ }
 775
 776static inline int security_sb_eat_lsm_opts(char *options,
 777					   void **mnt_opts)
 778{
 779	return 0;
 780}
 781
 782static inline int security_sb_remount(struct super_block *sb,
 783				      void *mnt_opts)
 784{
 785	return 0;
 786}
 787
 788static inline int security_sb_mnt_opts_compat(struct super_block *sb,
 789					      void *mnt_opts)
 790{
 791	return 0;
 792}
 793
 794
 795static inline int security_sb_kern_mount(struct super_block *sb)
 796{
 797	return 0;
 798}
 799
 800static inline int security_sb_show_options(struct seq_file *m,
 801					   struct super_block *sb)
 802{
 803	return 0;
 804}
 805
 806static inline int security_sb_statfs(struct dentry *dentry)
 807{
 808	return 0;
 809}
 810
 811static inline int security_sb_mount(const char *dev_name, const struct path *path,
 812				    const char *type, unsigned long flags,
 813				    void *data)
 814{
 815	return 0;
 816}
 817
 818static inline int security_sb_umount(struct vfsmount *mnt, int flags)
 819{
 820	return 0;
 821}
 822
 823static inline int security_sb_pivotroot(const struct path *old_path,
 824					const struct path *new_path)
 825{
 826	return 0;
 827}
 828
 829static inline int security_sb_set_mnt_opts(struct super_block *sb,
 830					   void *mnt_opts,
 831					   unsigned long kern_flags,
 832					   unsigned long *set_kern_flags)
 833{
 834	return 0;
 835}
 836
 837static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 838					      struct super_block *newsb,
 839					      unsigned long kern_flags,
 840					      unsigned long *set_kern_flags)
 841{
 842	return 0;
 843}
 844
 845static inline int security_move_mount(const struct path *from_path,
 846				      const struct path *to_path)
 847{
 848	return 0;
 849}
 850
 851static inline int security_path_notify(const struct path *path, u64 mask,
 852				unsigned int obj_type)
 853{
 854	return 0;
 855}
 856
 857static inline int security_inode_alloc(struct inode *inode, gfp_t gfp)
 858{
 859	return 0;
 860}
 861
 862static inline void security_inode_free(struct inode *inode)
 863{ }
 864
 865static inline int security_dentry_init_security(struct dentry *dentry,
 866						 int mode,
 867						 const struct qstr *name,
 868						 const char **xattr_name,
 869						 struct lsm_context *lsmcxt)
 870{
 871	return -EOPNOTSUPP;
 872}
 873
 874static inline int security_dentry_create_files_as(struct dentry *dentry,
 875						  int mode, const struct qstr *name,
 876						  const struct cred *old,
 877						  struct cred *new)
 878{
 879	return 0;
 880}
 881
 882
 883static inline int security_inode_init_security(struct inode *inode,
 884						struct inode *dir,
 885						const struct qstr *qstr,
 886						const initxattrs xattrs,
 887						void *fs_data)
 888{
 889	return 0;
 890}
 891
 892static inline int security_inode_init_security_anon(struct inode *inode,
 893						    const struct qstr *name,
 894						    const struct inode *context_inode)
 895{
 896	return 0;
 897}
 898
 899static inline int security_inode_create(struct inode *dir,
 900					 struct dentry *dentry,
 901					 umode_t mode)
 902{
 903	return 0;
 904}
 905
 906static inline void
 907security_inode_post_create_tmpfile(struct mnt_idmap *idmap, struct inode *inode)
 908{ }
 909
 910static inline int security_inode_link(struct dentry *old_dentry,
 911				       struct inode *dir,
 912				       struct dentry *new_dentry)
 913{
 914	return 0;
 915}
 916
 917static inline int security_inode_unlink(struct inode *dir,
 918					 struct dentry *dentry)
 919{
 920	return 0;
 921}
 922
 923static inline int security_inode_symlink(struct inode *dir,
 924					  struct dentry *dentry,
 925					  const char *old_name)
 926{
 927	return 0;
 928}
 929
 930static inline int security_inode_mkdir(struct inode *dir,
 931					struct dentry *dentry,
 932					int mode)
 933{
 934	return 0;
 935}
 936
 937static inline int security_inode_rmdir(struct inode *dir,
 938					struct dentry *dentry)
 939{
 940	return 0;
 941}
 942
 943static inline int security_inode_mknod(struct inode *dir,
 944					struct dentry *dentry,
 945					int mode, dev_t dev)
 946{
 947	return 0;
 948}
 949
 950static inline int security_inode_rename(struct inode *old_dir,
 951					 struct dentry *old_dentry,
 952					 struct inode *new_dir,
 953					 struct dentry *new_dentry,
 954					 unsigned int flags)
 955{
 956	return 0;
 957}
 958
 959static inline int security_inode_readlink(struct dentry *dentry)
 960{
 961	return 0;
 962}
 963
 964static inline int security_inode_follow_link(struct dentry *dentry,
 965					     struct inode *inode,
 966					     bool rcu)
 967{
 968	return 0;
 969}
 970
 971static inline int security_inode_permission(struct inode *inode, int mask)
 972{
 973	return 0;
 974}
 975
 976static inline int security_inode_setattr(struct mnt_idmap *idmap,
 977					 struct dentry *dentry,
 978					 struct iattr *attr)
 979{
 980	return 0;
 981}
 982
 983static inline void
 984security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
 985			    int ia_valid)
 986{ }
 987
 988static inline int security_inode_getattr(const struct path *path)
 989{
 990	return 0;
 991}
 992
 993static inline int security_inode_setxattr(struct mnt_idmap *idmap,
 994		struct dentry *dentry, const char *name, const void *value,
 995		size_t size, int flags)
 996{
 997	return cap_inode_setxattr(dentry, name, value, size, flags);
 998}
 999
1000static inline int security_inode_set_acl(struct mnt_idmap *idmap,
1001					 struct dentry *dentry,
1002					 const char *acl_name,
1003					 struct posix_acl *kacl)
1004{
1005	return 0;
1006}
1007
1008static inline void security_inode_post_set_acl(struct dentry *dentry,
1009					       const char *acl_name,
1010					       struct posix_acl *kacl)
1011{ }
1012
1013static inline int security_inode_get_acl(struct mnt_idmap *idmap,
1014					 struct dentry *dentry,
1015					 const char *acl_name)
1016{
1017	return 0;
1018}
1019
1020static inline int security_inode_remove_acl(struct mnt_idmap *idmap,
1021					    struct dentry *dentry,
1022					    const char *acl_name)
1023{
1024	return 0;
1025}
1026
1027static inline void security_inode_post_remove_acl(struct mnt_idmap *idmap,
1028						  struct dentry *dentry,
1029						  const char *acl_name)
1030{ }
1031
1032static inline void security_inode_post_setxattr(struct dentry *dentry,
1033		const char *name, const void *value, size_t size, int flags)
1034{ }
1035
1036static inline int security_inode_getxattr(struct dentry *dentry,
1037			const char *name)
1038{
1039	return 0;
1040}
1041
1042static inline int security_inode_listxattr(struct dentry *dentry)
1043{
1044	return 0;
1045}
1046
1047static inline int security_inode_removexattr(struct mnt_idmap *idmap,
1048					     struct dentry *dentry,
1049					     const char *name)
1050{
1051	return cap_inode_removexattr(idmap, dentry, name);
1052}
1053
1054static inline void security_inode_post_removexattr(struct dentry *dentry,
1055						   const char *name)
1056{ }
1057
1058static inline int security_inode_file_setattr(struct dentry *dentry,
1059					      struct file_kattr *fa)
1060{
1061	return 0;
1062}
1063
1064static inline int security_inode_file_getattr(struct dentry *dentry,
1065					      struct file_kattr *fa)
1066{
1067	return 0;
1068}
1069
1070static inline int security_inode_need_killpriv(struct dentry *dentry)
1071{
1072	return cap_inode_need_killpriv(dentry);
1073}
1074
1075static inline int security_inode_killpriv(struct mnt_idmap *idmap,
1076					  struct dentry *dentry)
1077{
1078	return cap_inode_killpriv(idmap, dentry);
1079}
1080
1081static inline int security_inode_getsecurity(struct mnt_idmap *idmap,
1082					     struct inode *inode,
1083					     const char *name, void **buffer,
1084					     bool alloc)
1085{
1086	return cap_inode_getsecurity(idmap, inode, name, buffer, alloc);
1087}
1088
1089static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
1090{
1091	return -EOPNOTSUPP;
1092}
1093
1094static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
1095{
1096	return 0;
1097}
1098
1099static inline void security_inode_getlsmprop(struct inode *inode,
1100					     struct lsm_prop *prop)
1101{
1102	lsmprop_init(prop);
1103}
1104
1105static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
1106{
1107	return 0;
1108}
1109
1110static inline int security_inode_setintegrity(const struct inode *inode,
1111					      enum lsm_integrity_type type,
1112					      const void *value, size_t size)
1113{
1114	return 0;
1115}
1116
1117static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
1118						struct kernfs_node *kn)
1119{
1120	return 0;
1121}
1122
1123static inline int security_inode_copy_up_xattr(struct dentry *src, const char *name)
1124{
1125	return -EOPNOTSUPP;
1126}
1127
1128static inline int security_file_permission(struct file *file, int mask)
1129{
1130	return 0;
1131}
1132
1133static inline int security_file_alloc(struct file *file)
1134{
1135	return 0;
1136}
1137
1138static inline void security_file_release(struct file *file)
1139{ }
1140
1141static inline void security_file_free(struct file *file)
1142{ }
1143
1144static inline int security_file_ioctl(struct file *file, unsigned int cmd,
1145				      unsigned long arg)
1146{
1147	return 0;
1148}
1149
1150static inline int security_file_ioctl_compat(struct file *file,
1151					     unsigned int cmd,
1152					     unsigned long arg)
1153{
1154	return 0;
1155}
1156
1157static inline int security_mmap_file(struct file *file, unsigned long prot,
1158				     unsigned long flags)
1159{
1160	return 0;
1161}
1162
1163static inline int security_mmap_addr(unsigned long addr)
1164{
1165	return cap_mmap_addr(addr);
1166}
1167
1168static inline int security_file_mprotect(struct vm_area_struct *vma,
1169					 unsigned long reqprot,
1170					 unsigned long prot)
1171{
1172	return 0;
1173}
1174
1175static inline int security_file_lock(struct file *file, unsigned int cmd)
1176{
1177	return 0;
1178}
1179
1180static inline int security_file_fcntl(struct file *file, unsigned int cmd,
1181				      unsigned long arg)
1182{
1183	return 0;
1184}
1185
1186static inline void security_file_set_fowner(struct file *file)
1187{
1188	return;
1189}
1190
1191static inline int security_file_send_sigiotask(struct task_struct *tsk,
1192					       struct fown_struct *fown,
1193					       int sig)
1194{
1195	return 0;
1196}
1197
1198static inline int security_file_receive(struct file *file)
1199{
1200	return 0;
1201}
1202
1203static inline int security_file_open(struct file *file)
1204{
1205	return 0;
1206}
1207
1208static inline int security_file_post_open(struct file *file, int mask)
1209{
1210	return 0;
1211}
1212
1213static inline int security_file_truncate(struct file *file)
1214{
1215	return 0;
1216}
1217
1218static inline int security_task_alloc(struct task_struct *task,
1219				      u64 clone_flags)
1220{
1221	return 0;
1222}
1223
1224static inline void security_task_free(struct task_struct *task)
1225{ }
1226
1227static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
1228{
1229	return 0;
1230}
1231
1232static inline void security_cred_free(struct cred *cred)
1233{ }
1234
1235static inline int security_prepare_creds(struct cred *new,
1236					 const struct cred *old,
1237					 gfp_t gfp)
1238{
1239	return 0;
1240}
1241
1242static inline void security_transfer_creds(struct cred *new,
1243					   const struct cred *old)
1244{
1245}
1246
1247static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
1248{
1249	*secid = 0;
1250}
1251
1252static inline void security_cred_getlsmprop(const struct cred *c,
1253					    struct lsm_prop *prop)
1254{ }
1255
1256static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1257{
1258	return 0;
1259}
1260
1261static inline int security_kernel_create_files_as(struct cred *cred,
1262						  struct inode *inode)
1263{
1264	return 0;
1265}
1266
1267static inline int security_kernel_module_request(char *kmod_name)
1268{
1269	return 0;
1270}
1271
1272static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents)
1273{
1274	return 0;
1275}
1276
1277static inline int security_kernel_post_load_data(char *buf, loff_t size,
1278						 enum kernel_load_data_id id,
1279						 char *description)
1280{
1281	return 0;
1282}
1283
1284static inline int security_kernel_read_file(struct file *file,
1285					    enum kernel_read_file_id id,
1286					    bool contents)
1287{
1288	return 0;
1289}
1290
1291static inline int security_kernel_post_read_file(struct file *file,
1292						 char *buf, loff_t size,
1293						 enum kernel_read_file_id id)
1294{
1295	return 0;
1296}
1297
1298static inline int security_task_fix_setuid(struct cred *new,
1299					   const struct cred *old,
1300					   int flags)
1301{
1302	return cap_task_fix_setuid(new, old, flags);
1303}
1304
1305static inline int security_task_fix_setgid(struct cred *new,
1306					   const struct cred *old,
1307					   int flags)
1308{
1309	return 0;
1310}
1311
1312static inline int security_task_fix_setgroups(struct cred *new,
1313					   const struct cred *old)
1314{
1315	return 0;
1316}
1317
1318static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1319{
1320	return 0;
1321}
1322
1323static inline int security_task_getpgid(struct task_struct *p)
1324{
1325	return 0;
1326}
1327
1328static inline int security_task_getsid(struct task_struct *p)
1329{
1330	return 0;
1331}
1332
1333static inline void security_current_getlsmprop_subj(struct lsm_prop *prop)
1334{
1335	lsmprop_init(prop);
1336}
1337
1338static inline void security_task_getlsmprop_obj(struct task_struct *p,
1339						struct lsm_prop *prop)
1340{
1341	lsmprop_init(prop);
1342}
1343
1344static inline int security_task_setnice(struct task_struct *p, int nice)
1345{
1346	return cap_task_setnice(p, nice);
1347}
1348
1349static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1350{
1351	return cap_task_setioprio(p, ioprio);
1352}
1353
1354static inline int security_task_getioprio(struct task_struct *p)
1355{
1356	return 0;
1357}
1358
1359static inline int security_task_prlimit(const struct cred *cred,
1360					const struct cred *tcred,
1361					unsigned int flags)
1362{
1363	return 0;
1364}
1365
1366static inline int security_task_setrlimit(struct task_struct *p,
1367					  unsigned int resource,
1368					  struct rlimit *new_rlim)
1369{
1370	return 0;
1371}
1372
1373static inline int security_task_setscheduler(struct task_struct *p)
1374{
1375	return cap_task_setscheduler(p);
1376}
1377
1378static inline int security_task_getscheduler(struct task_struct *p)
1379{
1380	return 0;
1381}
1382
1383static inline int security_task_movememory(struct task_struct *p)
1384{
1385	return 0;
1386}
1387
1388static inline int security_task_kill(struct task_struct *p,
1389				     struct kernel_siginfo *info, int sig,
1390				     const struct cred *cred)
1391{
1392	return 0;
1393}
1394
1395static inline int security_task_prctl(int option, unsigned long arg2,
1396				      unsigned long arg3,
1397				      unsigned long arg4,
1398				      unsigned long arg5)
1399{
1400	return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1401}
1402
1403static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1404{ }
1405
1406static inline int security_create_user_ns(const struct cred *cred)
1407{
1408	return 0;
1409}
1410
1411static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1412					  short flag)
1413{
1414	return 0;
1415}
1416
1417static inline void security_ipc_getlsmprop(struct kern_ipc_perm *ipcp,
1418					   struct lsm_prop *prop)
1419{
1420	lsmprop_init(prop);
1421}
1422
1423static inline int security_msg_msg_alloc(struct msg_msg *msg)
1424{
1425	return 0;
1426}
1427
1428static inline void security_msg_msg_free(struct msg_msg *msg)
1429{ }
1430
1431static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1432{
1433	return 0;
1434}
1435
1436static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1437{ }
1438
1439static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1440					       int msqflg)
1441{
1442	return 0;
1443}
1444
1445static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1446{
1447	return 0;
1448}
1449
1450static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1451					    struct msg_msg *msg, int msqflg)
1452{
1453	return 0;
1454}
1455
1456static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1457					    struct msg_msg *msg,
1458					    struct task_struct *target,
1459					    long type, int mode)
1460{
1461	return 0;
1462}
1463
1464static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1465{
1466	return 0;
1467}
1468
1469static inline void security_shm_free(struct kern_ipc_perm *shp)
1470{ }
1471
1472static inline int security_shm_associate(struct kern_ipc_perm *shp,
1473					 int shmflg)
1474{
1475	return 0;
1476}
1477
1478static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1479{
1480	return 0;
1481}
1482
1483static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1484				     char __user *shmaddr, int shmflg)
1485{
1486	return 0;
1487}
1488
1489static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1490{
1491	return 0;
1492}
1493
1494static inline void security_sem_free(struct kern_ipc_perm *sma)
1495{ }
1496
1497static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1498{
1499	return 0;
1500}
1501
1502static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1503{
1504	return 0;
1505}
1506
1507static inline int security_sem_semop(struct kern_ipc_perm *sma,
1508				     struct sembuf *sops, unsigned nsops,
1509				     int alter)
1510{
1511	return 0;
1512}
1513
1514static inline void security_d_instantiate(struct dentry *dentry,
1515					  struct inode *inode)
1516{ }
1517
1518static inline int security_getselfattr(unsigned int attr,
1519				       struct lsm_ctx __user *ctx,
1520				       size_t __user *size, u32 flags)
1521{
1522	return -EOPNOTSUPP;
1523}
1524
1525static inline int security_setselfattr(unsigned int attr,
1526				       struct lsm_ctx __user *ctx,
1527				       size_t size, u32 flags)
1528{
1529	return -EOPNOTSUPP;
1530}
1531
1532static inline int security_getprocattr(struct task_struct *p, int lsmid,
1533				       const char *name, char **value)
1534{
1535	return -EINVAL;
1536}
1537
1538static inline int security_setprocattr(int lsmid, char *name, void *value,
1539				       size_t size)
1540{
1541	return -EINVAL;
1542}
1543
1544static inline int security_ismaclabel(const char *name)
1545{
1546	return 0;
1547}
1548
1549static inline int security_secid_to_secctx(u32 secid, struct lsm_context *cp)
1550{
1551	return -EOPNOTSUPP;
1552}
1553
1554static inline int security_lsmprop_to_secctx(struct lsm_prop *prop,
1555					     struct lsm_context *cp,
1556					     int lsmid)
1557{
1558	return -EOPNOTSUPP;
1559}
1560
1561static inline int security_secctx_to_secid(const char *secdata,
1562					   u32 seclen,
1563					   u32 *secid)
1564{
1565	return -EOPNOTSUPP;
1566}
1567
1568static inline void security_release_secctx(struct lsm_context *cp)
1569{
1570}
1571
1572static inline void security_inode_invalidate_secctx(struct inode *inode)
1573{
1574}
1575
1576static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1577{
1578	return -EOPNOTSUPP;
1579}
1580static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1581{
1582	return -EOPNOTSUPP;
1583}
1584static inline int security_inode_getsecctx(struct inode *inode,
1585					   struct lsm_context *cp)
1586{
1587	return -EOPNOTSUPP;
1588}
1589static inline int security_locked_down(enum lockdown_reason what)
1590{
1591	return 0;
1592}
1593static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx,
1594				    u32 *uctx_len, void *val, size_t val_len,
1595				    u64 id, u64 flags)
1596{
1597	return -EOPNOTSUPP;
1598}
1599
1600static inline int security_bdev_alloc(struct block_device *bdev)
1601{
1602	return 0;
1603}
1604
1605static inline void security_bdev_free(struct block_device *bdev)
1606{
1607}
1608
1609static inline int security_bdev_setintegrity(struct block_device *bdev,
1610					     enum lsm_integrity_type type,
1611					     const void *value, size_t size)
1612{
1613	return 0;
1614}
1615
1616#endif	/* CONFIG_SECURITY */
1617
1618#if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1619int security_post_notification(const struct cred *w_cred,
1620			       const struct cred *cred,
1621			       struct watch_notification *n);
1622#else
1623static inline int security_post_notification(const struct cred *w_cred,
1624					     const struct cred *cred,
1625					     struct watch_notification *n)
1626{
1627	return 0;
1628}
1629#endif
1630
1631#if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1632int security_watch_key(struct key *key);
1633#else
1634static inline int security_watch_key(struct key *key)
1635{
1636	return 0;
1637}
1638#endif
1639
1640#ifdef CONFIG_SECURITY_NETWORK
1641
1642int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1643int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1644int security_unix_may_send(struct socket *sock,  struct socket *other);
1645int security_socket_create(int family, int type, int protocol, int kern);
1646int security_socket_post_create(struct socket *sock, int family,
1647				int type, int protocol, int kern);
1648int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1649int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1650int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1651int security_socket_listen(struct socket *sock, int backlog);
1652int security_socket_accept(struct socket *sock, struct socket *newsock);
1653int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1654int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1655			    int size, int flags);
1656int security_socket_getsockname(struct socket *sock);
1657int security_socket_getpeername(struct socket *sock);
1658int security_socket_getsockopt(struct socket *sock, int level, int optname);
1659int security_socket_setsockopt(struct socket *sock, int level, int optname);
1660int security_socket_shutdown(struct socket *sock, int how);
1661int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1662int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval,
1663				      sockptr_t optlen, unsigned int len);
1664int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1665int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1666void security_sk_free(struct sock *sk);
1667void security_sk_clone(const struct sock *sk, struct sock *newsk);
1668void security_sk_classify_flow(const struct sock *sk,
1669			       struct flowi_common *flic);
1670void security_req_classify_flow(const struct request_sock *req,
1671				struct flowi_common *flic);
1672void security_sock_graft(struct sock*sk, struct socket *parent);
1673int security_inet_conn_request(const struct sock *sk,
1674			struct sk_buff *skb, struct request_sock *req);
1675void security_inet_csk_clone(struct sock *newsk,
1676			const struct request_sock *req);
1677void security_inet_conn_established(struct sock *sk,
1678			struct sk_buff *skb);
1679int security_secmark_relabel_packet(u32 secid);
1680void security_secmark_refcount_inc(void);
1681void security_secmark_refcount_dec(void);
1682int security_tun_dev_alloc_security(void **security);
1683void security_tun_dev_free_security(void *security);
1684int security_tun_dev_create(void);
1685int security_tun_dev_attach_queue(void *security);
1686int security_tun_dev_attach(struct sock *sk, void *security);
1687int security_tun_dev_open(void *security);
1688int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb);
1689int security_sctp_bind_connect(struct sock *sk, int optname,
1690			       struct sockaddr *address, int addrlen);
1691void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
1692			    struct sock *newsk);
1693int security_sctp_assoc_established(struct sctp_association *asoc,
1694				    struct sk_buff *skb);
1695int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk);
1696
1697#else	/* CONFIG_SECURITY_NETWORK */
1698static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1699{
1700	return 0;
1701}
1702
1703static inline int security_unix_stream_connect(struct sock *sock,
1704					       struct sock *other,
1705					       struct sock *newsk)
1706{
1707	return 0;
1708}
1709
1710static inline int security_unix_may_send(struct socket *sock,
1711					 struct socket *other)
1712{
1713	return 0;
1714}
1715
1716static inline int security_socket_create(int family, int type,
1717					 int protocol, int kern)
1718{
1719	return 0;
1720}
1721
1722static inline int security_socket_post_create(struct socket *sock,
1723					      int family,
1724					      int type,
1725					      int protocol, int kern)
1726{
1727	return 0;
1728}
1729
1730static inline int security_socket_socketpair(struct socket *socka,
1731					     struct socket *sockb)
1732{
1733	return 0;
1734}
1735
1736static inline int security_socket_bind(struct socket *sock,
1737				       struct sockaddr *address,
1738				       int addrlen)
1739{
1740	return 0;
1741}
1742
1743static inline int security_socket_connect(struct socket *sock,
1744					  struct sockaddr *address,
1745					  int addrlen)
1746{
1747	return 0;
1748}
1749
1750static inline int security_socket_listen(struct socket *sock, int backlog)
1751{
1752	return 0;
1753}
1754
1755static inline int security_socket_accept(struct socket *sock,
1756					 struct socket *newsock)
1757{
1758	return 0;
1759}
1760
1761static inline int security_socket_sendmsg(struct socket *sock,
1762					  struct msghdr *msg, int size)
1763{
1764	return 0;
1765}
1766
1767static inline int security_socket_recvmsg(struct socket *sock,
1768					  struct msghdr *msg, int size,
1769					  int flags)
1770{
1771	return 0;
1772}
1773
1774static inline int security_socket_getsockname(struct socket *sock)
1775{
1776	return 0;
1777}
1778
1779static inline int security_socket_getpeername(struct socket *sock)
1780{
1781	return 0;
1782}
1783
1784static inline int security_socket_getsockopt(struct socket *sock,
1785					     int level, int optname)
1786{
1787	return 0;
1788}
1789
1790static inline int security_socket_setsockopt(struct socket *sock,
1791					     int level, int optname)
1792{
1793	return 0;
1794}
1795
1796static inline int security_socket_shutdown(struct socket *sock, int how)
1797{
1798	return 0;
1799}
1800static inline int security_sock_rcv_skb(struct sock *sk,
1801					struct sk_buff *skb)
1802{
1803	return 0;
1804}
1805
1806static inline int security_socket_getpeersec_stream(struct socket *sock,
1807						    sockptr_t optval,
1808						    sockptr_t optlen,
1809						    unsigned int len)
1810{
1811	return -ENOPROTOOPT;
1812}
1813
1814static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1815{
1816	return -ENOPROTOOPT;
1817}
1818
1819static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1820{
1821	return 0;
1822}
1823
1824static inline void security_sk_free(struct sock *sk)
1825{
1826}
1827
1828static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1829{
1830}
1831
1832static inline void security_sk_classify_flow(const struct sock *sk,
1833					     struct flowi_common *flic)
1834{
1835}
1836
1837static inline void security_req_classify_flow(const struct request_sock *req,
1838					      struct flowi_common *flic)
1839{
1840}
1841
1842static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1843{
1844}
1845
1846static inline int security_inet_conn_request(const struct sock *sk,
1847			struct sk_buff *skb, struct request_sock *req)
1848{
1849	return 0;
1850}
1851
1852static inline void security_inet_csk_clone(struct sock *newsk,
1853			const struct request_sock *req)
1854{
1855}
1856
1857static inline void security_inet_conn_established(struct sock *sk,
1858			struct sk_buff *skb)
1859{
1860}
1861
1862static inline int security_secmark_relabel_packet(u32 secid)
1863{
1864	return 0;
1865}
1866
1867static inline void security_secmark_refcount_inc(void)
1868{
1869}
1870
1871static inline void security_secmark_refcount_dec(void)
1872{
1873}
1874
1875static inline int security_tun_dev_alloc_security(void **security)
1876{
1877	return 0;
1878}
1879
1880static inline void security_tun_dev_free_security(void *security)
1881{
1882}
1883
1884static inline int security_tun_dev_create(void)
1885{
1886	return 0;
1887}
1888
1889static inline int security_tun_dev_attach_queue(void *security)
1890{
1891	return 0;
1892}
1893
1894static inline int security_tun_dev_attach(struct sock *sk, void *security)
1895{
1896	return 0;
1897}
1898
1899static inline int security_tun_dev_open(void *security)
1900{
1901	return 0;
1902}
1903
1904static inline int security_sctp_assoc_request(struct sctp_association *asoc,
1905					      struct sk_buff *skb)
1906{
1907	return 0;
1908}
1909
1910static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1911					     struct sockaddr *address,
1912					     int addrlen)
1913{
1914	return 0;
1915}
1916
1917static inline void security_sctp_sk_clone(struct sctp_association *asoc,
1918					  struct sock *sk,
1919					  struct sock *newsk)
1920{
1921}
1922
1923static inline int security_sctp_assoc_established(struct sctp_association *asoc,
1924						  struct sk_buff *skb)
1925{
1926	return 0;
1927}
1928
1929static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk)
1930{
1931	return 0;
1932}
1933#endif	/* CONFIG_SECURITY_NETWORK */
1934
1935#ifdef CONFIG_SECURITY_INFINIBAND
1936int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1937int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1938int security_ib_alloc_security(void **sec);
1939void security_ib_free_security(void *sec);
1940#else	/* CONFIG_SECURITY_INFINIBAND */
1941static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1942{
1943	return 0;
1944}
1945
1946static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1947{
1948	return 0;
1949}
1950
1951static inline int security_ib_alloc_security(void **sec)
1952{
1953	return 0;
1954}
1955
1956static inline void security_ib_free_security(void *sec)
1957{
1958}
1959#endif	/* CONFIG_SECURITY_INFINIBAND */
1960
1961#ifdef CONFIG_SECURITY_NETWORK_XFRM
1962
1963int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1964			       struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1965int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1966void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1967int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1968int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1969int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1970				      struct xfrm_sec_ctx *polsec, u32 secid);
1971int security_xfrm_state_delete(struct xfrm_state *x);
1972void security_xfrm_state_free(struct xfrm_state *x);
1973int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
1974int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1975				       struct xfrm_policy *xp,
1976				       const struct flowi_common *flic);
1977int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1978void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic);
1979
1980#else	/* CONFIG_SECURITY_NETWORK_XFRM */
1981
1982static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1983					     struct xfrm_user_sec_ctx *sec_ctx,
1984					     gfp_t gfp)
1985{
1986	return 0;
1987}
1988
1989static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1990{
1991	return 0;
1992}
1993
1994static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1995{
1996}
1997
1998static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1999{
2000	return 0;
2001}
2002
2003static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2004					struct xfrm_user_sec_ctx *sec_ctx)
2005{
2006	return 0;
2007}
2008
2009static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2010					struct xfrm_sec_ctx *polsec, u32 secid)
2011{
2012	return 0;
2013}
2014
2015static inline void security_xfrm_state_free(struct xfrm_state *x)
2016{
2017}
2018
2019static inline int security_xfrm_state_delete(struct xfrm_state *x)
2020{
2021	return 0;
2022}
2023
2024static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
2025{
2026	return 0;
2027}
2028
2029static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2030						     struct xfrm_policy *xp,
2031						     const struct flowi_common *flic)
2032{
2033	return 1;
2034}
2035
2036static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
2037{
2038	return 0;
2039}
2040
2041static inline void security_skb_classify_flow(struct sk_buff *skb,
2042					      struct flowi_common *flic)
2043{
2044}
2045
2046#endif	/* CONFIG_SECURITY_NETWORK_XFRM */
2047
2048#ifdef CONFIG_SECURITY_PATH
2049int security_path_unlink(const struct path *dir, struct dentry *dentry);
2050int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
2051int security_path_rmdir(const struct path *dir, struct dentry *dentry);
2052int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
2053			unsigned int dev);
2054void security_path_post_mknod(struct mnt_idmap *idmap, struct dentry *dentry);
2055int security_path_truncate(const struct path *path);
2056int security_path_symlink(const struct path *dir, struct dentry *dentry,
2057			  const char *old_name);
2058int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
2059		       struct dentry *new_dentry);
2060int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
2061			 const struct path *new_dir, struct dentry *new_dentry,
2062			 unsigned int flags);
2063int security_path_chmod(const struct path *path, umode_t mode);
2064int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
2065int security_path_chroot(const struct path *path);
2066#else	/* CONFIG_SECURITY_PATH */
2067static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
2068{
2069	return 0;
2070}
2071
2072static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
2073				      umode_t mode)
2074{
2075	return 0;
2076}
2077
2078static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
2079{
2080	return 0;
2081}
2082
2083static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
2084				      umode_t mode, unsigned int dev)
2085{
2086	return 0;
2087}
2088
2089static inline void security_path_post_mknod(struct mnt_idmap *idmap,
2090					    struct dentry *dentry)
2091{ }
2092
2093static inline int security_path_truncate(const struct path *path)
2094{
2095	return 0;
2096}
2097
2098static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
2099					const char *old_name)
2100{
2101	return 0;
2102}
2103
2104static inline int security_path_link(struct dentry *old_dentry,
2105				     const struct path *new_dir,
2106				     struct dentry *new_dentry)
2107{
2108	return 0;
2109}
2110
2111static inline int security_path_rename(const struct path *old_dir,
2112				       struct dentry *old_dentry,
2113				       const struct path *new_dir,
2114				       struct dentry *new_dentry,
2115				       unsigned int flags)
2116{
2117	return 0;
2118}
2119
2120static inline int security_path_chmod(const struct path *path, umode_t mode)
2121{
2122	return 0;
2123}
2124
2125static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
2126{
2127	return 0;
2128}
2129
2130static inline int security_path_chroot(const struct path *path)
2131{
2132	return 0;
2133}
2134#endif	/* CONFIG_SECURITY_PATH */
2135
2136#ifdef CONFIG_KEYS
2137#ifdef CONFIG_SECURITY
2138
2139int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
2140void security_key_free(struct key *key);
2141int security_key_permission(key_ref_t key_ref, const struct cred *cred,
2142			    enum key_need_perm need_perm);
2143int security_key_getsecurity(struct key *key, char **_buffer);
2144void security_key_post_create_or_update(struct key *keyring, struct key *key,
2145					const void *payload, size_t payload_len,
2146					unsigned long flags, bool create);
2147
2148#else
2149
2150static inline int security_key_alloc(struct key *key,
2151				     const struct cred *cred,
2152				     unsigned long flags)
2153{
2154	return 0;
2155}
2156
2157static inline void security_key_free(struct key *key)
2158{
2159}
2160
2161static inline int security_key_permission(key_ref_t key_ref,
2162					  const struct cred *cred,
2163					  enum key_need_perm need_perm)
2164{
2165	return 0;
2166}
2167
2168static inline int security_key_getsecurity(struct key *key, char **_buffer)
2169{
2170	*_buffer = NULL;
2171	return 0;
2172}
2173
2174static inline void security_key_post_create_or_update(struct key *keyring,
2175						      struct key *key,
2176						      const void *payload,
2177						      size_t payload_len,
2178						      unsigned long flags,
2179						      bool create)
2180{ }
2181
2182#endif
2183#endif /* CONFIG_KEYS */
2184
2185#ifdef CONFIG_AUDIT
2186#ifdef CONFIG_SECURITY
2187int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule,
2188			     gfp_t gfp);
2189int security_audit_rule_known(struct audit_krule *krule);
2190int security_audit_rule_match(struct lsm_prop *prop, u32 field, u32 op,
2191			      void *lsmrule);
2192void security_audit_rule_free(void *lsmrule);
2193
2194#else
2195
2196static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2197					   void **lsmrule, gfp_t gfp)
2198{
2199	return 0;
2200}
2201
2202static inline int security_audit_rule_known(struct audit_krule *krule)
2203{
2204	return 0;
2205}
2206
2207static inline int security_audit_rule_match(struct lsm_prop *prop, u32 field,
2208					    u32 op, void *lsmrule)
2209{
2210	return 0;
2211}
2212
2213static inline void security_audit_rule_free(void *lsmrule)
2214{ }
2215
2216#endif /* CONFIG_SECURITY */
2217#endif /* CONFIG_AUDIT */
2218
2219#ifdef CONFIG_SECURITYFS
2220
2221extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
2222					     struct dentry *parent, void *data,
2223					     const struct file_operations *fops);
2224extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2225struct dentry *securityfs_create_symlink(const char *name,
2226					 struct dentry *parent,
2227					 const char *target,
2228					 const struct inode_operations *iops);
2229extern void securityfs_remove(struct dentry *dentry);
2230
2231#else /* CONFIG_SECURITYFS */
2232
2233static inline struct dentry *securityfs_create_dir(const char *name,
2234						   struct dentry *parent)
2235{
2236	return ERR_PTR(-ENODEV);
2237}
2238
2239static inline struct dentry *securityfs_create_file(const char *name,
2240						    umode_t mode,
2241						    struct dentry *parent,
2242						    void *data,
2243						    const struct file_operations *fops)
2244{
2245	return ERR_PTR(-ENODEV);
2246}
2247
2248static inline struct dentry *securityfs_create_symlink(const char *name,
2249					struct dentry *parent,
2250					const char *target,
2251					const struct inode_operations *iops)
2252{
2253	return ERR_PTR(-ENODEV);
2254}
2255
2256static inline void securityfs_remove(struct dentry *dentry)
2257{}
2258
2259#endif
2260
2261#ifdef CONFIG_BPF_SYSCALL
2262union bpf_attr;
2263struct bpf_map;
2264struct bpf_prog;
2265struct bpf_token;
2266#ifdef CONFIG_SECURITY
2267extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size, bool kernel);
2268extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
2269extern int security_bpf_prog(struct bpf_prog *prog);
2270extern int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr,
2271				   struct bpf_token *token, bool kernel);
2272extern void security_bpf_map_free(struct bpf_map *map);
2273extern int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr,
2274				  struct bpf_token *token, bool kernel);
2275extern void security_bpf_prog_free(struct bpf_prog *prog);
2276extern int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr,
2277				     const struct path *path);
2278extern void security_bpf_token_free(struct bpf_token *token);
2279extern int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd);
2280extern int security_bpf_token_capable(const struct bpf_token *token, int cap);
2281#else
2282static inline int security_bpf(int cmd, union bpf_attr *attr,
2283			       unsigned int size, bool kernel)
2284{
2285	return 0;
2286}
2287
2288static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
2289{
2290	return 0;
2291}
2292
2293static inline int security_bpf_prog(struct bpf_prog *prog)
2294{
2295	return 0;
2296}
2297
2298static inline int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr,
2299					  struct bpf_token *token, bool kernel)
2300{
2301	return 0;
2302}
2303
2304static inline void security_bpf_map_free(struct bpf_map *map)
2305{ }
2306
2307static inline int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr,
2308					 struct bpf_token *token, bool kernel)
2309{
2310	return 0;
2311}
2312
2313static inline void security_bpf_prog_free(struct bpf_prog *prog)
2314{ }
2315
2316static inline int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr,
2317					    const struct path *path)
2318{
2319	return 0;
2320}
2321
2322static inline void security_bpf_token_free(struct bpf_token *token)
2323{ }
2324
2325static inline int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd)
2326{
2327	return 0;
2328}
2329
2330static inline int security_bpf_token_capable(const struct bpf_token *token, int cap)
2331{
2332	return 0;
2333}
2334#endif /* CONFIG_SECURITY */
2335#endif /* CONFIG_BPF_SYSCALL */
2336
2337#ifdef CONFIG_PERF_EVENTS
2338struct perf_event_attr;
2339struct perf_event;
2340
2341#ifdef CONFIG_SECURITY
2342extern int security_perf_event_open(int type);
2343extern int security_perf_event_alloc(struct perf_event *event);
2344extern void security_perf_event_free(struct perf_event *event);
2345extern int security_perf_event_read(struct perf_event *event);
2346extern int security_perf_event_write(struct perf_event *event);
2347#else
2348static inline int security_perf_event_open(int type)
2349{
2350	return 0;
2351}
2352
2353static inline int security_perf_event_alloc(struct perf_event *event)
2354{
2355	return 0;
2356}
2357
2358static inline void security_perf_event_free(struct perf_event *event)
2359{
2360}
2361
2362static inline int security_perf_event_read(struct perf_event *event)
2363{
2364	return 0;
2365}
2366
2367static inline int security_perf_event_write(struct perf_event *event)
2368{
2369	return 0;
2370}
2371#endif /* CONFIG_SECURITY */
2372#endif /* CONFIG_PERF_EVENTS */
2373
2374#ifdef CONFIG_IO_URING
2375#ifdef CONFIG_SECURITY
2376extern int security_uring_override_creds(const struct cred *new);
2377extern int security_uring_sqpoll(void);
2378extern int security_uring_cmd(struct io_uring_cmd *ioucmd);
2379extern int security_uring_allowed(void);
2380#else
2381static inline int security_uring_override_creds(const struct cred *new)
2382{
2383	return 0;
2384}
2385static inline int security_uring_sqpoll(void)
2386{
2387	return 0;
2388}
2389static inline int security_uring_cmd(struct io_uring_cmd *ioucmd)
2390{
2391	return 0;
2392}
2393static inline int security_uring_allowed(void)
2394{
2395	return 0;
2396}
2397#endif /* CONFIG_SECURITY */
2398#endif /* CONFIG_IO_URING */
2399
2400#ifdef CONFIG_SECURITY
2401extern void security_initramfs_populated(void);
2402#else
2403static inline void security_initramfs_populated(void)
2404{
2405}
2406#endif /* CONFIG_SECURITY */
2407
2408#endif /* ! __LINUX_SECURITY_H */