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