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