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