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_dup(struct fs_context *fc, struct fs_context *src_fc);
 297 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
 298 int security_sb_alloc(struct super_block *sb);
 299 void security_sb_delete(struct super_block *sb);
 300 void security_sb_free(struct super_block *sb);
 301 void security_free_mnt_opts(void **mnt_opts);
 302 int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
 303 int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts);
 304 int security_sb_remount(struct super_block *sb, void *mnt_opts);
 305 int security_sb_kern_mount(struct super_block *sb);
 306 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
 307 int security_sb_statfs(struct dentry *dentry);
 308 int security_sb_mount(const char *dev_name, const struct path *path,
 309                       const char *type, unsigned long flags, void *data);
 310 int security_sb_umount(struct vfsmount *mnt, int flags);
 311 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
 312 int security_sb_set_mnt_opts(struct super_block *sb,
 313                                 void *mnt_opts,
 314                                 unsigned long kern_flags,
 315                                 unsigned long *set_kern_flags);
 316 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 317                                 struct super_block *newsb,
 318                                 unsigned long kern_flags,
 319                                 unsigned long *set_kern_flags);
 320 int security_move_mount(const struct path *from_path, const struct path *to_path);
 321 int security_dentry_init_security(struct dentry *dentry, int mode,
 322                                   const struct qstr *name,
 323                                   const char **xattr_name, void **ctx,
 324                                   u32 *ctxlen);
 325 int security_dentry_create_files_as(struct dentry *dentry, int mode,
 326                                         struct qstr *name,
 327                                         const struct cred *old,
 328                                         struct cred *new);
 329 int security_path_notify(const struct path *path, u64 mask,
 330                                         unsigned int obj_type);
 331 int security_inode_alloc(struct inode *inode);
 332 void security_inode_free(struct inode *inode);
 333 int security_inode_init_security(struct inode *inode, struct inode *dir,
 334                                  const struct qstr *qstr,
 335                                  initxattrs initxattrs, void *fs_data);
 336 int security_inode_init_security_anon(struct inode *inode,
 337                                       const struct qstr *name,
 338                                       const struct inode *context_inode);
 339 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
 340 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 341                          struct dentry *new_dentry);
 342 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
 343 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 344                            const char *old_name);
 345 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 346 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
 347 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
 348 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 349                           struct inode *new_dir, struct dentry *new_dentry,
 350                           unsigned int flags);
 351 int security_inode_readlink(struct dentry *dentry);
 352 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
 353                                bool rcu);
 354 int security_inode_permission(struct inode *inode, int mask);
 355 int security_inode_setattr(struct mnt_idmap *idmap,
 356                            struct dentry *dentry, struct iattr *attr);
 357 int security_inode_getattr(const struct path *path);
 358 int security_inode_setxattr(struct mnt_idmap *idmap,
 359                             struct dentry *dentry, const char *name,
 360                             const void *value, size_t size, int flags);
 361 int security_inode_set_acl(struct mnt_idmap *idmap,
 362                            struct dentry *dentry, const char *acl_name,
 363                            struct posix_acl *kacl);
 364 int security_inode_get_acl(struct mnt_idmap *idmap,
 365                            struct dentry *dentry, const char *acl_name);
 366 int security_inode_remove_acl(struct mnt_idmap *idmap,
 367                               struct dentry *dentry, const char *acl_name);
 368 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 369                                   const void *value, size_t size, int flags);
 370 int security_inode_getxattr(struct dentry *dentry, const char *name);
 371 int security_inode_listxattr(struct dentry *dentry);
 372 int security_inode_removexattr(struct mnt_idmap *idmap,
 373                                struct dentry *dentry, const char *name);
 374 int security_inode_need_killpriv(struct dentry *dentry);
 375 int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
 376 int security_inode_getsecurity(struct mnt_idmap *idmap,
 377                                struct inode *inode, const char *name,
 378                                void **buffer, bool alloc);
 379 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
 380 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
 381 void security_inode_getsecid(struct inode *inode, u32 *secid);
 382 int security_inode_copy_up(struct dentry *src, struct cred **new);
 383 int security_inode_copy_up_xattr(const char *name);
 384 int security_kernfs_init_security(struct kernfs_node *kn_dir,
 385                                   struct kernfs_node *kn);
 386 int security_file_permission(struct file *file, int mask);
 387 int security_file_alloc(struct file *file);
 388 void security_file_free(struct file *file);
 389 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 390 int security_mmap_file(struct file *file, unsigned long prot,
 391                         unsigned long flags);
 392 int security_mmap_addr(unsigned long addr);
 393 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 394                            unsigned long prot);
 395 int security_file_lock(struct file *file, unsigned int cmd);
 396 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
 397 void security_file_set_fowner(struct file *file);
 398 int security_file_send_sigiotask(struct task_struct *tsk,
 399                                  struct fown_struct *fown, int sig);
 400 int security_file_receive(struct file *file);
 401 int security_file_open(struct file *file);
 402 int security_file_truncate(struct file *file);
 403 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
 404 void security_task_free(struct task_struct *task);
 405 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
 406 void security_cred_free(struct cred *cred);
 407 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
 408 void security_transfer_creds(struct cred *new, const struct cred *old);
 409 void security_cred_getsecid(const struct cred *c, u32 *secid);
 410 int security_kernel_act_as(struct cred *new, u32 secid);
 411 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
 412 int security_kernel_module_request(char *kmod_name);
 413 int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
 414 int security_kernel_post_load_data(char *buf, loff_t size,
 415                                    enum kernel_load_data_id id,
 416                                    char *description);
 417 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
 418                               bool contents);
 419 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
 420                                    enum kernel_read_file_id id);
 421 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 422                              int flags);
 423 int security_task_fix_setgid(struct cred *new, const struct cred *old,
 424                              int flags);
 425 int security_task_fix_setgroups(struct cred *new, const struct cred *old);
 426 int security_task_setpgid(struct task_struct *p, pid_t pgid);
 427 int security_task_getpgid(struct task_struct *p);
 428 int security_task_getsid(struct task_struct *p);
 429 void security_current_getsecid_subj(u32 *secid);
 430 void security_task_getsecid_obj(struct task_struct *p, u32 *secid);
 431 int security_task_setnice(struct task_struct *p, int nice);
 432 int security_task_setioprio(struct task_struct *p, int ioprio);
 433 int security_task_getioprio(struct task_struct *p);
 434 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
 435                           unsigned int flags);
 436 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 437                 struct rlimit *new_rlim);
 438 int security_task_setscheduler(struct task_struct *p);
 439 int security_task_getscheduler(struct task_struct *p);
 440 int security_task_movememory(struct task_struct *p);
 441 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
 442                         int sig, const struct cred *cred);
 443 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 444                         unsigned long arg4, unsigned long arg5);
 445 void security_task_to_inode(struct task_struct *p, struct inode *inode);
 446 int security_create_user_ns(const struct cred *cred);
 447 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
 448 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
 449 int security_msg_msg_alloc(struct msg_msg *msg);
 450 void security_msg_msg_free(struct msg_msg *msg);
 451 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
 452 void security_msg_queue_free(struct kern_ipc_perm *msq);
 453 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
 454 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
 455 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
 456                               struct msg_msg *msg, int msqflg);
 457 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
 458                               struct task_struct *target, long type, int mode);
 459 int security_shm_alloc(struct kern_ipc_perm *shp);
 460 void security_shm_free(struct kern_ipc_perm *shp);
 461 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
 462 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
 463 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
 464 int security_sem_alloc(struct kern_ipc_perm *sma);
 465 void security_sem_free(struct kern_ipc_perm *sma);
 466 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
 467 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
 468 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
 469                         unsigned nsops, int alter);
 470 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
 471 int security_getprocattr(struct task_struct *p, const char *lsm, const char *name,
 472                          char **value);
 473 int security_setprocattr(const char *lsm, const char *name, void *value,
 474                          size_t size);
 475 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
 476 int security_ismaclabel(const char *name);
 477 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
 478 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
 479 void security_release_secctx(char *secdata, u32 seclen);
 480 void security_inode_invalidate_secctx(struct inode *inode);
 481 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
 482 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
 483 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
 484 int security_locked_down(enum lockdown_reason what);
 485 #else /* CONFIG_SECURITY */
 486
 487 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
 488 {
 489         return 0;
 490 }
 491
 492 static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
 493 {
 494         return 0;
 495 }
 496
 497 static inline  int unregister_blocking_lsm_notifier(struct notifier_block *nb)
 498 {
 499         return 0;
 500 }
 501
 502 static inline void security_free_mnt_opts(void **mnt_opts)
 503 {
 504 }
 505
 506 /*
 507  * This is the default capabilities functionality.  Most of these functions
 508  * are just stubbed out, but a few must call the proper capable code.
 509  */
 510
 511 static inline int security_init(void)
 512 {
 513         return 0;
 514 }
 515
 516 static inline int early_security_init(void)
 517 {
 518         return 0;
 519 }
 520
 521 static inline int security_binder_set_context_mgr(const struct cred *mgr)
 522 {
 523         return 0;
 524 }
 525
 526 static inline int security_binder_transaction(const struct cred *from,
 527                                               const struct cred *to)
 528 {
 529         return 0;
 530 }
 531
 532 static inline int security_binder_transfer_binder(const struct cred *from,
 533                                                   const struct cred *to)
 534 {
 535         return 0;
 536 }
 537
 538 static inline int security_binder_transfer_file(const struct cred *from,
 539                                                 const struct cred *to,
 540                                                 struct file *file)
 541 {
 542         return 0;
 543 }
 544
 545 static inline int security_ptrace_access_check(struct task_struct *child,
 546                                              unsigned int mode)
 547 {
 548         return cap_ptrace_access_check(child, mode);
 549 }
 550
 551 static inline int security_ptrace_traceme(struct task_struct *parent)
 552 {
 553         return cap_ptrace_traceme(parent);
 554 }
 555
 556 static inline int security_capget(struct task_struct *target,
 557                                    kernel_cap_t *effective,
 558                                    kernel_cap_t *inheritable,
 559                                    kernel_cap_t *permitted)
 560 {
 561         return cap_capget(target, effective, inheritable, permitted);
 562 }
 563
 564 static inline int security_capset(struct cred *new,
 565                                    const struct cred *old,
 566                                    const kernel_cap_t *effective,
 567                                    const kernel_cap_t *inheritable,
 568                                    const kernel_cap_t *permitted)
 569 {
 570         return cap_capset(new, old, effective, inheritable, permitted);
 571 }
 572
 573 static inline int security_capable(const struct cred *cred,
 574                                    struct user_namespace *ns,
 575                                    int cap,
 576                                    unsigned int opts)
 577 {
 578         return cap_capable(cred, ns, cap, opts);
 579 }
 580
 581 static inline int security_quotactl(int cmds, int type, int id,
 582                                      struct super_block *sb)
 583 {
 584         return 0;
 585 }
 586
 587 static inline int security_quota_on(struct dentry *dentry)
 588 {
 589         return 0;
 590 }
 591
 592 static inline int security_syslog(int type)
 593 {
 594         return 0;
 595 }
 596
 597 static inline int security_settime64(const struct timespec64 *ts,
 598                                      const struct timezone *tz)
 599 {
 600         return cap_settime(ts, tz);
 601 }
 602
 603 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 604 {
 605         return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
 606 }
 607
 608 static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
 609 {
 610         return 0;
 611 }
 612
 613 static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
 614                                                 struct file *file)
 615 {
 616         return cap_bprm_creds_from_file(bprm, file);
 617 }
 618
 619 static inline int security_bprm_check(struct linux_binprm *bprm)
 620 {
 621         return 0;
 622 }
 623
 624 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
 625 {
 626 }
 627
 628 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
 629 {
 630 }
 631
 632 static inline int security_fs_context_dup(struct fs_context *fc,
 633                                           struct fs_context *src_fc)
 634 {
 635         return 0;
 636 }
 637 static inline int security_fs_context_parse_param(struct fs_context *fc,
 638                                                   struct fs_parameter *param)
 639 {
 640         return -ENOPARAM;
 641 }
 642
 643 static inline int security_sb_alloc(struct super_block *sb)
 644 {
 645         return 0;
 646 }
 647
 648 static inline void security_sb_delete(struct super_block *sb)
 649 { }
 650
 651 static inline void security_sb_free(struct super_block *sb)
 652 { }
 653
 654 static inline int security_sb_eat_lsm_opts(char *options,
 655                                            void **mnt_opts)
 656 {
 657         return 0;
 658 }
 659
 660 static inline int security_sb_remount(struct super_block *sb,
 661                                       void *mnt_opts)
 662 {
 663         return 0;
 664 }
 665
 666 static inline int security_sb_mnt_opts_compat(struct super_block *sb,
 667                                               void *mnt_opts)
 668 {
 669         return 0;
 670 }
 671
 672
 673 static inline int security_sb_kern_mount(struct super_block *sb)
 674 {
 675         return 0;
 676 }
 677
 678 static inline int security_sb_show_options(struct seq_file *m,
 679                                            struct super_block *sb)
 680 {
 681         return 0;
 682 }
 683
 684 static inline int security_sb_statfs(struct dentry *dentry)
 685 {
 686         return 0;
 687 }
 688
 689 static inline int security_sb_mount(const char *dev_name, const struct path *path,
 690                                     const char *type, unsigned long flags,
 691                                     void *data)
 692 {
 693         return 0;
 694 }
 695
 696 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
 697 {
 698         return 0;
 699 }
 700
 701 static inline int security_sb_pivotroot(const struct path *old_path,
 702                                         const struct path *new_path)
 703 {
 704         return 0;
 705 }
 706
 707 static inline int security_sb_set_mnt_opts(struct super_block *sb,
 708                                            void *mnt_opts,
 709                                            unsigned long kern_flags,
 710                                            unsigned long *set_kern_flags)
 711 {
 712         return 0;
 713 }
 714
 715 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 716                                               struct super_block *newsb,
 717                                               unsigned long kern_flags,
 718                                               unsigned long *set_kern_flags)
 719 {
 720         return 0;
 721 }
 722
 723 static inline int security_move_mount(const struct path *from_path,
 724                                       const struct path *to_path)
 725 {
 726         return 0;
 727 }
 728
 729 static inline int security_path_notify(const struct path *path, u64 mask,
 730                                 unsigned int obj_type)
 731 {
 732         return 0;
 733 }
 734
 735 static inline int security_inode_alloc(struct inode *inode)
 736 {
 737         return 0;
 738 }
 739
 740 static inline void security_inode_free(struct inode *inode)
 741 { }
 742
 743 static inline int security_dentry_init_security(struct dentry *dentry,
 744                                                  int mode,
 745                                                  const struct qstr *name,
 746                                                  const char **xattr_name,
 747                                                  void **ctx,
 748                                                  u32 *ctxlen)
 749 {
 750         return -EOPNOTSUPP;
 751 }
 752
 753 static inline int security_dentry_create_files_as(struct dentry *dentry,
 754                                                   int mode, struct qstr *name,
 755                                                   const struct cred *old,
 756                                                   struct cred *new)
 757 {
 758         return 0;
 759 }
 760
 761
 762 static inline int security_inode_init_security(struct inode *inode,
 763                                                 struct inode *dir,
 764                                                 const struct qstr *qstr,
 765                                                 const initxattrs xattrs,
 766                                                 void *fs_data)
 767 {
 768         return 0;
 769 }
 770
 771 static inline int security_inode_init_security_anon(struct inode *inode,
 772                                                     const struct qstr *name,
 773                                                     const struct inode *context_inode)
 774 {
 775         return 0;
 776 }
 777
 778 static inline int security_inode_create(struct inode *dir,
 779                                          struct dentry *dentry,
 780                                          umode_t mode)
 781 {
 782         return 0;
 783 }
 784
 785 static inline int security_inode_link(struct dentry *old_dentry,
 786                                        struct inode *dir,
 787                                        struct dentry *new_dentry)
 788 {
 789         return 0;
 790 }
 791
 792 static inline int security_inode_unlink(struct inode *dir,
 793                                          struct dentry *dentry)
 794 {
 795         return 0;
 796 }
 797
 798 static inline int security_inode_symlink(struct inode *dir,
 799                                           struct dentry *dentry,
 800                                           const char *old_name)
 801 {
 802         return 0;
 803 }
 804
 805 static inline int security_inode_mkdir(struct inode *dir,
 806                                         struct dentry *dentry,
 807                                         int mode)
 808 {
 809         return 0;
 810 }
 811
 812 static inline int security_inode_rmdir(struct inode *dir,
 813                                         struct dentry *dentry)
 814 {
 815         return 0;
 816 }
 817
 818 static inline int security_inode_mknod(struct inode *dir,
 819                                         struct dentry *dentry,
 820                                         int mode, dev_t dev)
 821 {
 822         return 0;
 823 }
 824
 825 static inline int security_inode_rename(struct inode *old_dir,
 826                                          struct dentry *old_dentry,
 827                                          struct inode *new_dir,
 828                                          struct dentry *new_dentry,
 829                                          unsigned int flags)
 830 {
 831         return 0;
 832 }
 833
 834 static inline int security_inode_readlink(struct dentry *dentry)
 835 {
 836         return 0;
 837 }
 838
 839 static inline int security_inode_follow_link(struct dentry *dentry,
 840                                              struct inode *inode,
 841                                              bool rcu)
 842 {
 843         return 0;
 844 }
 845
 846 static inline int security_inode_permission(struct inode *inode, int mask)
 847 {
 848         return 0;
 849 }
 850
 851 static inline int security_inode_setattr(struct mnt_idmap *idmap,
 852                                          struct dentry *dentry,
 853                                          struct iattr *attr)
 854 {
 855         return 0;
 856 }
 857
 858 static inline int security_inode_getattr(const struct path *path)
 859 {
 860         return 0;
 861 }
 862
 863 static inline int security_inode_setxattr(struct mnt_idmap *idmap,
 864                 struct dentry *dentry, const char *name, const void *value,
 865                 size_t size, int flags)
 866 {
 867         return cap_inode_setxattr(dentry, name, value, size, flags);
 868 }
 869
 870 static inline int security_inode_set_acl(struct mnt_idmap *idmap,
 871                                          struct dentry *dentry,
 872                                          const char *acl_name,
 873                                          struct posix_acl *kacl)
 874 {
 875         return 0;
 876 }
 877
 878 static inline int security_inode_get_acl(struct mnt_idmap *idmap,
 879                                          struct dentry *dentry,
 880                                          const char *acl_name)
 881 {
 882         return 0;
 883 }
 884
 885 static inline int security_inode_remove_acl(struct mnt_idmap *idmap,
 886                                             struct dentry *dentry,
 887                                             const char *acl_name)
 888 {
 889         return 0;
 890 }
 891
 892 static inline void security_inode_post_setxattr(struct dentry *dentry,
 893                 const char *name, const void *value, size_t size, int flags)
 894 { }
 895
 896 static inline int security_inode_getxattr(struct dentry *dentry,
 897                         const char *name)
 898 {
 899         return 0;
 900 }
 901
 902 static inline int security_inode_listxattr(struct dentry *dentry)
 903 {
 904         return 0;
 905 }
 906
 907 static inline int security_inode_removexattr(struct mnt_idmap *idmap,
 908                                              struct dentry *dentry,
 909                                              const char *name)
 910 {
 911         return cap_inode_removexattr(idmap, dentry, name);
 912 }
 913
 914 static inline int security_inode_need_killpriv(struct dentry *dentry)
 915 {
 916         return cap_inode_need_killpriv(dentry);
 917 }
 918
 919 static inline int security_inode_killpriv(struct mnt_idmap *idmap,
 920                                           struct dentry *dentry)
 921 {
 922         return cap_inode_killpriv(idmap, dentry);
 923 }
 924
 925 static inline int security_inode_getsecurity(struct mnt_idmap *idmap,
 926                                              struct inode *inode,
 927                                              const char *name, void **buffer,
 928                                              bool alloc)
 929 {
 930         return cap_inode_getsecurity(idmap, inode, name, buffer, alloc);
 931 }
 932
 933 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 934 {
 935         return -EOPNOTSUPP;
 936 }
 937
 938 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 939 {
 940         return 0;
 941 }
 942
 943 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
 944 {
 945         *secid = 0;
 946 }
 947
 948 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
 949 {
 950         return 0;
 951 }
 952
 953 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
 954                                                 struct kernfs_node *kn)
 955 {
 956         return 0;
 957 }
 958
 959 static inline int security_inode_copy_up_xattr(const char *name)
 960 {
 961         return -EOPNOTSUPP;
 962 }
 963
 964 static inline int security_file_permission(struct file *file, int mask)
 965 {
 966         return 0;
 967 }
 968
 969 static inline int security_file_alloc(struct file *file)
 970 {
 971         return 0;
 972 }
 973
 974 static inline void security_file_free(struct file *file)
 975 { }
 976
 977 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
 978                                       unsigned long arg)
 979 {
 980         return 0;
 981 }
 982
 983 static inline int security_mmap_file(struct file *file, unsigned long prot,
 984                                      unsigned long flags)
 985 {
 986         return 0;
 987 }
 988
 989 static inline int security_mmap_addr(unsigned long addr)
 990 {
 991         return cap_mmap_addr(addr);
 992 }
 993
 994 static inline int security_file_mprotect(struct vm_area_struct *vma,
 995                                          unsigned long reqprot,
 996                                          unsigned long prot)
 997 {
 998         return 0;
 999 }
1000
1001 static inline int security_file_lock(struct file *file, unsigned int cmd)
1002 {
1003         return 0;
1004 }
1005
1006 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
1007                                       unsigned long arg)
1008 {
1009         return 0;
1010 }
1011
1012 static inline void security_file_set_fowner(struct file *file)
1013 {
1014         return;
1015 }
1016
1017 static inline int security_file_send_sigiotask(struct task_struct *tsk,
1018                                                struct fown_struct *fown,
1019                                                int sig)
1020 {
1021         return 0;
1022 }
1023
1024 static inline int security_file_receive(struct file *file)
1025 {
1026         return 0;
1027 }
1028
1029 static inline int security_file_open(struct file *file)
1030 {
1031         return 0;
1032 }
1033
1034 static inline int security_file_truncate(struct file *file)
1035 {
1036         return 0;
1037 }
1038
1039 static inline int security_task_alloc(struct task_struct *task,
1040                                       unsigned long clone_flags)
1041 {
1042         return 0;
1043 }
1044
1045 static inline void security_task_free(struct task_struct *task)
1046 { }
1047
1048 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
1049 {
1050         return 0;
1051 }
1052
1053 static inline void security_cred_free(struct cred *cred)
1054 { }
1055
1056 static inline int security_prepare_creds(struct cred *new,
1057                                          const struct cred *old,
1058                                          gfp_t gfp)
1059 {
1060         return 0;
1061 }
1062
1063 static inline void security_transfer_creds(struct cred *new,
1064                                            const struct cred *old)
1065 {
1066 }
1067
1068 static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
1069 {
1070         *secid = 0;
1071 }
1072
1073 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1074 {
1075         return 0;
1076 }
1077
1078 static inline int security_kernel_create_files_as(struct cred *cred,
1079                                                   struct inode *inode)
1080 {
1081         return 0;
1082 }
1083
1084 static inline int security_kernel_module_request(char *kmod_name)
1085 {
1086         return 0;
1087 }
1088
1089 static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents)
1090 {
1091         return 0;
1092 }
1093
1094 static inline int security_kernel_post_load_data(char *buf, loff_t size,
1095                                                  enum kernel_load_data_id id,
1096                                                  char *description)
1097 {
1098         return 0;
1099 }
1100
1101 static inline int security_kernel_read_file(struct file *file,
1102                                             enum kernel_read_file_id id,
1103                                             bool contents)
1104 {
1105         return 0;
1106 }
1107
1108 static inline int security_kernel_post_read_file(struct file *file,
1109                                                  char *buf, loff_t size,
1110                                                  enum kernel_read_file_id id)
1111 {
1112         return 0;
1113 }
1114
1115 static inline int security_task_fix_setuid(struct cred *new,
1116                                            const struct cred *old,
1117                                            int flags)
1118 {
1119         return cap_task_fix_setuid(new, old, flags);
1120 }
1121
1122 static inline int security_task_fix_setgid(struct cred *new,
1123                                            const struct cred *old,
1124                                            int flags)
1125 {
1126         return 0;
1127 }
1128
1129 static inline int security_task_fix_setgroups(struct cred *new,
1130                                            const struct cred *old)
1131 {
1132         return 0;
1133 }
1134
1135 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1136 {
1137         return 0;
1138 }
1139
1140 static inline int security_task_getpgid(struct task_struct *p)
1141 {
1142         return 0;
1143 }
1144
1145 static inline int security_task_getsid(struct task_struct *p)
1146 {
1147         return 0;
1148 }
1149
1150 static inline void security_current_getsecid_subj(u32 *secid)
1151 {
1152         *secid = 0;
1153 }
1154
1155 static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid)
1156 {
1157         *secid = 0;
1158 }
1159
1160 static inline int security_task_setnice(struct task_struct *p, int nice)
1161 {
1162         return cap_task_setnice(p, nice);
1163 }
1164
1165 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1166 {
1167         return cap_task_setioprio(p, ioprio);
1168 }
1169
1170 static inline int security_task_getioprio(struct task_struct *p)
1171 {
1172         return 0;
1173 }
1174
1175 static inline int security_task_prlimit(const struct cred *cred,
1176                                         const struct cred *tcred,
1177                                         unsigned int flags)
1178 {
1179         return 0;
1180 }
1181
1182 static inline int security_task_setrlimit(struct task_struct *p,
1183                                           unsigned int resource,
1184                                           struct rlimit *new_rlim)
1185 {
1186         return 0;
1187 }
1188
1189 static inline int security_task_setscheduler(struct task_struct *p)
1190 {
1191         return cap_task_setscheduler(p);
1192 }
1193
1194 static inline int security_task_getscheduler(struct task_struct *p)
1195 {
1196         return 0;
1197 }
1198
1199 static inline int security_task_movememory(struct task_struct *p)
1200 {
1201         return 0;
1202 }
1203
1204 static inline int security_task_kill(struct task_struct *p,
1205                                      struct kernel_siginfo *info, int sig,
1206                                      const struct cred *cred)
1207 {
1208         return 0;
1209 }
1210
1211 static inline int security_task_prctl(int option, unsigned long arg2,
1212                                       unsigned long arg3,
1213                                       unsigned long arg4,
1214                                       unsigned long arg5)
1215 {
1216         return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1217 }
1218
1219 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1220 { }
1221
1222 static inline int security_create_user_ns(const struct cred *cred)
1223 {
1224         return 0;
1225 }
1226
1227 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1228                                           short flag)
1229 {
1230         return 0;
1231 }
1232
1233 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1234 {
1235         *secid = 0;
1236 }
1237
1238 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1239 {
1240         return 0;
1241 }
1242
1243 static inline void security_msg_msg_free(struct msg_msg *msg)
1244 { }
1245
1246 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1247 {
1248         return 0;
1249 }
1250
1251 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1252 { }
1253
1254 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1255                                                int msqflg)
1256 {
1257         return 0;
1258 }
1259
1260 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1261 {
1262         return 0;
1263 }
1264
1265 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1266                                             struct msg_msg *msg, int msqflg)
1267 {
1268         return 0;
1269 }
1270
1271 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1272                                             struct msg_msg *msg,
1273                                             struct task_struct *target,
1274                                             long type, int mode)
1275 {
1276         return 0;
1277 }
1278
1279 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1280 {
1281         return 0;
1282 }
1283
1284 static inline void security_shm_free(struct kern_ipc_perm *shp)
1285 { }
1286
1287 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1288                                          int shmflg)
1289 {
1290         return 0;
1291 }
1292
1293 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1294 {
1295         return 0;
1296 }
1297
1298 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1299                                      char __user *shmaddr, int shmflg)
1300 {
1301         return 0;
1302 }
1303
1304 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1305 {
1306         return 0;
1307 }
1308
1309 static inline void security_sem_free(struct kern_ipc_perm *sma)
1310 { }
1311
1312 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1313 {
1314         return 0;
1315 }
1316
1317 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1318 {
1319         return 0;
1320 }
1321
1322 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1323                                      struct sembuf *sops, unsigned nsops,
1324                                      int alter)
1325 {
1326         return 0;
1327 }
1328
1329 static inline void security_d_instantiate(struct dentry *dentry,
1330                                           struct inode *inode)
1331 { }
1332
1333 static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1334                                        const char *name, char **value)
1335 {
1336         return -EINVAL;
1337 }
1338
1339 static inline int security_setprocattr(const char *lsm, char *name,
1340                                        void *value, size_t size)
1341 {
1342         return -EINVAL;
1343 }
1344
1345 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1346 {
1347         return 0;
1348 }
1349
1350 static inline int security_ismaclabel(const char *name)
1351 {
1352         return 0;
1353 }
1354
1355 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1356 {
1357         return -EOPNOTSUPP;
1358 }
1359
1360 static inline int security_secctx_to_secid(const char *secdata,
1361                                            u32 seclen,
1362                                            u32 *secid)
1363 {
1364         return -EOPNOTSUPP;
1365 }
1366
1367 static inline void security_release_secctx(char *secdata, u32 seclen)
1368 {
1369 }
1370
1371 static inline void security_inode_invalidate_secctx(struct inode *inode)
1372 {
1373 }
1374
1375 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1376 {
1377         return -EOPNOTSUPP;
1378 }
1379 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1380 {
1381         return -EOPNOTSUPP;
1382 }
1383 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1384 {
1385         return -EOPNOTSUPP;
1386 }
1387 static inline int security_locked_down(enum lockdown_reason what)
1388 {
1389         return 0;
1390 }
1391 #endif  /* CONFIG_SECURITY */
1392
1393 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1394 int security_post_notification(const struct cred *w_cred,
1395                                const struct cred *cred,
1396                                struct watch_notification *n);
1397 #else
1398 static inline int security_post_notification(const struct cred *w_cred,
1399                                              const struct cred *cred,
1400                                              struct watch_notification *n)
1401 {
1402         return 0;
1403 }
1404 #endif
1405
1406 #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1407 int security_watch_key(struct key *key);
1408 #else
1409 static inline int security_watch_key(struct key *key)
1410 {
1411         return 0;
1412 }
1413 #endif
1414
1415 #ifdef CONFIG_SECURITY_NETWORK
1416
1417 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1418 int security_unix_may_send(struct socket *sock,  struct socket *other);
1419 int security_socket_create(int family, int type, int protocol, int kern);
1420 int security_socket_post_create(struct socket *sock, int family,
1421                                 int type, int protocol, int kern);
1422 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1423 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1424 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1425 int security_socket_listen(struct socket *sock, int backlog);
1426 int security_socket_accept(struct socket *sock, struct socket *newsock);
1427 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1428 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1429                             int size, int flags);
1430 int security_socket_getsockname(struct socket *sock);
1431 int security_socket_getpeername(struct socket *sock);
1432 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1433 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1434 int security_socket_shutdown(struct socket *sock, int how);
1435 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1436 int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval,
1437                                       sockptr_t optlen, unsigned int len);
1438 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1439 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1440 void security_sk_free(struct sock *sk);
1441 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1442 void security_sk_classify_flow(struct sock *sk, struct flowi_common *flic);
1443 void security_req_classify_flow(const struct request_sock *req,
1444                                 struct flowi_common *flic);
1445 void security_sock_graft(struct sock*sk, struct socket *parent);
1446 int security_inet_conn_request(const struct sock *sk,
1447                         struct sk_buff *skb, struct request_sock *req);
1448 void security_inet_csk_clone(struct sock *newsk,
1449                         const struct request_sock *req);
1450 void security_inet_conn_established(struct sock *sk,
1451                         struct sk_buff *skb);
1452 int security_secmark_relabel_packet(u32 secid);
1453 void security_secmark_refcount_inc(void);
1454 void security_secmark_refcount_dec(void);
1455 int security_tun_dev_alloc_security(void **security);
1456 void security_tun_dev_free_security(void *security);
1457 int security_tun_dev_create(void);
1458 int security_tun_dev_attach_queue(void *security);
1459 int security_tun_dev_attach(struct sock *sk, void *security);
1460 int security_tun_dev_open(void *security);
1461 int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb);
1462 int security_sctp_bind_connect(struct sock *sk, int optname,
1463                                struct sockaddr *address, int addrlen);
1464 void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
1465                             struct sock *newsk);
1466 int security_sctp_assoc_established(struct sctp_association *asoc,
1467                                     struct sk_buff *skb);
1468 int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk);
1469
1470 #else   /* CONFIG_SECURITY_NETWORK */
1471 static inline int security_unix_stream_connect(struct sock *sock,
1472                                                struct sock *other,
1473                                                struct sock *newsk)
1474 {
1475         return 0;
1476 }
1477
1478 static inline int security_unix_may_send(struct socket *sock,
1479                                          struct socket *other)
1480 {
1481         return 0;
1482 }
1483
1484 static inline int security_socket_create(int family, int type,
1485                                          int protocol, int kern)
1486 {
1487         return 0;
1488 }
1489
1490 static inline int security_socket_post_create(struct socket *sock,
1491                                               int family,
1492                                               int type,
1493                                               int protocol, int kern)
1494 {
1495         return 0;
1496 }
1497
1498 static inline int security_socket_socketpair(struct socket *socka,
1499                                              struct socket *sockb)
1500 {
1501         return 0;
1502 }
1503
1504 static inline int security_socket_bind(struct socket *sock,
1505                                        struct sockaddr *address,
1506                                        int addrlen)
1507 {
1508         return 0;
1509 }
1510
1511 static inline int security_socket_connect(struct socket *sock,
1512                                           struct sockaddr *address,
1513                                           int addrlen)
1514 {
1515         return 0;
1516 }
1517
1518 static inline int security_socket_listen(struct socket *sock, int backlog)
1519 {
1520         return 0;
1521 }
1522
1523 static inline int security_socket_accept(struct socket *sock,
1524                                          struct socket *newsock)
1525 {
1526         return 0;
1527 }
1528
1529 static inline int security_socket_sendmsg(struct socket *sock,
1530                                           struct msghdr *msg, int size)
1531 {
1532         return 0;
1533 }
1534
1535 static inline int security_socket_recvmsg(struct socket *sock,
1536                                           struct msghdr *msg, int size,
1537                                           int flags)
1538 {
1539         return 0;
1540 }
1541
1542 static inline int security_socket_getsockname(struct socket *sock)
1543 {
1544         return 0;
1545 }
1546
1547 static inline int security_socket_getpeername(struct socket *sock)
1548 {
1549         return 0;
1550 }
1551
1552 static inline int security_socket_getsockopt(struct socket *sock,
1553                                              int level, int optname)
1554 {
1555         return 0;
1556 }
1557
1558 static inline int security_socket_setsockopt(struct socket *sock,
1559                                              int level, int optname)
1560 {
1561         return 0;
1562 }
1563
1564 static inline int security_socket_shutdown(struct socket *sock, int how)
1565 {
1566         return 0;
1567 }
1568 static inline int security_sock_rcv_skb(struct sock *sk,
1569                                         struct sk_buff *skb)
1570 {
1571         return 0;
1572 }
1573
1574 static inline int security_socket_getpeersec_stream(struct socket *sock,
1575                                                     sockptr_t optval,
1576                                                     sockptr_t optlen,
1577                                                     unsigned int len)
1578 {
1579         return -ENOPROTOOPT;
1580 }
1581
1582 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1583 {
1584         return -ENOPROTOOPT;
1585 }
1586
1587 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1588 {
1589         return 0;
1590 }
1591
1592 static inline void security_sk_free(struct sock *sk)
1593 {
1594 }
1595
1596 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1597 {
1598 }
1599
1600 static inline void security_sk_classify_flow(struct sock *sk,
1601                                              struct flowi_common *flic)
1602 {
1603 }
1604
1605 static inline void security_req_classify_flow(const struct request_sock *req,
1606                                               struct flowi_common *flic)
1607 {
1608 }
1609
1610 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1611 {
1612 }
1613
1614 static inline int security_inet_conn_request(const struct sock *sk,
1615                         struct sk_buff *skb, struct request_sock *req)
1616 {
1617         return 0;
1618 }
1619
1620 static inline void security_inet_csk_clone(struct sock *newsk,
1621                         const struct request_sock *req)
1622 {
1623 }
1624
1625 static inline void security_inet_conn_established(struct sock *sk,
1626                         struct sk_buff *skb)
1627 {
1628 }
1629
1630 static inline int security_secmark_relabel_packet(u32 secid)
1631 {
1632         return 0;
1633 }
1634
1635 static inline void security_secmark_refcount_inc(void)
1636 {
1637 }
1638
1639 static inline void security_secmark_refcount_dec(void)
1640 {
1641 }
1642
1643 static inline int security_tun_dev_alloc_security(void **security)
1644 {
1645         return 0;
1646 }
1647
1648 static inline void security_tun_dev_free_security(void *security)
1649 {
1650 }
1651
1652 static inline int security_tun_dev_create(void)
1653 {
1654         return 0;
1655 }
1656
1657 static inline int security_tun_dev_attach_queue(void *security)
1658 {
1659         return 0;
1660 }
1661
1662 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1663 {
1664         return 0;
1665 }
1666
1667 static inline int security_tun_dev_open(void *security)
1668 {
1669         return 0;
1670 }
1671
1672 static inline int security_sctp_assoc_request(struct sctp_association *asoc,
1673                                               struct sk_buff *skb)
1674 {
1675         return 0;
1676 }
1677
1678 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1679                                              struct sockaddr *address,
1680                                              int addrlen)
1681 {
1682         return 0;
1683 }
1684
1685 static inline void security_sctp_sk_clone(struct sctp_association *asoc,
1686                                           struct sock *sk,
1687                                           struct sock *newsk)
1688 {
1689 }
1690
1691 static inline int security_sctp_assoc_established(struct sctp_association *asoc,
1692                                                   struct sk_buff *skb)
1693 {
1694         return 0;
1695 }
1696
1697 static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk)
1698 {
1699         return 0;
1700 }
1701 #endif  /* CONFIG_SECURITY_NETWORK */
1702
1703 #ifdef CONFIG_SECURITY_INFINIBAND
1704 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1705 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1706 int security_ib_alloc_security(void **sec);
1707 void security_ib_free_security(void *sec);
1708 #else   /* CONFIG_SECURITY_INFINIBAND */
1709 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1710 {
1711         return 0;
1712 }
1713
1714 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1715 {
1716         return 0;
1717 }
1718
1719 static inline int security_ib_alloc_security(void **sec)
1720 {
1721         return 0;
1722 }
1723
1724 static inline void security_ib_free_security(void *sec)
1725 {
1726 }
1727 #endif  /* CONFIG_SECURITY_INFINIBAND */
1728
1729 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1730
1731 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1732                                struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1733 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1734 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1735 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1736 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1737 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1738                                       struct xfrm_sec_ctx *polsec, u32 secid);
1739 int security_xfrm_state_delete(struct xfrm_state *x);
1740 void security_xfrm_state_free(struct xfrm_state *x);
1741 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
1742 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1743                                        struct xfrm_policy *xp,
1744                                        const struct flowi_common *flic);
1745 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1746 void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic);
1747
1748 #else   /* CONFIG_SECURITY_NETWORK_XFRM */
1749
1750 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1751                                              struct xfrm_user_sec_ctx *sec_ctx,
1752                                              gfp_t gfp)
1753 {
1754         return 0;
1755 }
1756
1757 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1758 {
1759         return 0;
1760 }
1761
1762 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1763 {
1764 }
1765
1766 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1767 {
1768         return 0;
1769 }
1770
1771 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1772                                         struct xfrm_user_sec_ctx *sec_ctx)
1773 {
1774         return 0;
1775 }
1776
1777 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1778                                         struct xfrm_sec_ctx *polsec, u32 secid)
1779 {
1780         return 0;
1781 }
1782
1783 static inline void security_xfrm_state_free(struct xfrm_state *x)
1784 {
1785 }
1786
1787 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1788 {
1789         return 0;
1790 }
1791
1792 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
1793 {
1794         return 0;
1795 }
1796
1797 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1798                                                      struct xfrm_policy *xp,
1799                                                      const struct flowi_common *flic)
1800 {
1801         return 1;
1802 }
1803
1804 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1805 {
1806         return 0;
1807 }
1808
1809 static inline void security_skb_classify_flow(struct sk_buff *skb,
1810                                               struct flowi_common *flic)
1811 {
1812 }
1813
1814 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1815
1816 #ifdef CONFIG_SECURITY_PATH
1817 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1818 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1819 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1820 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1821                         unsigned int dev);
1822 int security_path_truncate(const struct path *path);
1823 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1824                           const char *old_name);
1825 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1826                        struct dentry *new_dentry);
1827 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1828                          const struct path *new_dir, struct dentry *new_dentry,
1829                          unsigned int flags);
1830 int security_path_chmod(const struct path *path, umode_t mode);
1831 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1832 int security_path_chroot(const struct path *path);
1833 #else   /* CONFIG_SECURITY_PATH */
1834 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1835 {
1836         return 0;
1837 }
1838
1839 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1840                                       umode_t mode)
1841 {
1842         return 0;
1843 }
1844
1845 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1846 {
1847         return 0;
1848 }
1849
1850 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1851                                       umode_t mode, unsigned int dev)
1852 {
1853         return 0;
1854 }
1855
1856 static inline int security_path_truncate(const struct path *path)
1857 {
1858         return 0;
1859 }
1860
1861 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1862                                         const char *old_name)
1863 {
1864         return 0;
1865 }
1866
1867 static inline int security_path_link(struct dentry *old_dentry,
1868                                      const struct path *new_dir,
1869                                      struct dentry *new_dentry)
1870 {
1871         return 0;
1872 }
1873
1874 static inline int security_path_rename(const struct path *old_dir,
1875                                        struct dentry *old_dentry,
1876                                        const struct path *new_dir,
1877                                        struct dentry *new_dentry,
1878                                        unsigned int flags)
1879 {
1880         return 0;
1881 }
1882
1883 static inline int security_path_chmod(const struct path *path, umode_t mode)
1884 {
1885         return 0;
1886 }
1887
1888 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1889 {
1890         return 0;
1891 }
1892
1893 static inline int security_path_chroot(const struct path *path)
1894 {
1895         return 0;
1896 }
1897 #endif  /* CONFIG_SECURITY_PATH */
1898
1899 #ifdef CONFIG_KEYS
1900 #ifdef CONFIG_SECURITY
1901
1902 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1903 void security_key_free(struct key *key);
1904 int security_key_permission(key_ref_t key_ref, const struct cred *cred,
1905                             enum key_need_perm need_perm);
1906 int security_key_getsecurity(struct key *key, char **_buffer);
1907
1908 #else
1909
1910 static inline int security_key_alloc(struct key *key,
1911                                      const struct cred *cred,
1912                                      unsigned long flags)
1913 {
1914         return 0;
1915 }
1916
1917 static inline void security_key_free(struct key *key)
1918 {
1919 }
1920
1921 static inline int security_key_permission(key_ref_t key_ref,
1922                                           const struct cred *cred,
1923                                           enum key_need_perm need_perm)
1924 {
1925         return 0;
1926 }
1927
1928 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1929 {
1930         *_buffer = NULL;
1931         return 0;
1932 }
1933
1934 #endif
1935 #endif /* CONFIG_KEYS */
1936
1937 #ifdef CONFIG_AUDIT
1938 #ifdef CONFIG_SECURITY
1939 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1940 int security_audit_rule_known(struct audit_krule *krule);
1941 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1942 void security_audit_rule_free(void *lsmrule);
1943
1944 #else
1945
1946 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1947                                            void **lsmrule)
1948 {
1949         return 0;
1950 }
1951
1952 static inline int security_audit_rule_known(struct audit_krule *krule)
1953 {
1954         return 0;
1955 }
1956
1957 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1958                                             void *lsmrule)
1959 {
1960         return 0;
1961 }
1962
1963 static inline void security_audit_rule_free(void *lsmrule)
1964 { }
1965
1966 #endif /* CONFIG_SECURITY */
1967 #endif /* CONFIG_AUDIT */
1968
1969 #ifdef CONFIG_SECURITYFS
1970
1971 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1972                                              struct dentry *parent, void *data,
1973                                              const struct file_operations *fops);
1974 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1975 struct dentry *securityfs_create_symlink(const char *name,
1976                                          struct dentry *parent,
1977                                          const char *target,
1978                                          const struct inode_operations *iops);
1979 extern void securityfs_remove(struct dentry *dentry);
1980
1981 #else /* CONFIG_SECURITYFS */
1982
1983 static inline struct dentry *securityfs_create_dir(const char *name,
1984                                                    struct dentry *parent)
1985 {
1986         return ERR_PTR(-ENODEV);
1987 }
1988
1989 static inline struct dentry *securityfs_create_file(const char *name,
1990                                                     umode_t mode,
1991                                                     struct dentry *parent,
1992                                                     void *data,
1993                                                     const struct file_operations *fops)
1994 {
1995         return ERR_PTR(-ENODEV);
1996 }
1997
1998 static inline struct dentry *securityfs_create_symlink(const char *name,
1999                                         struct dentry *parent,
2000                                         const char *target,
2001                                         const struct inode_operations *iops)
2002 {
2003         return ERR_PTR(-ENODEV);
2004 }
2005
2006 static inline void securityfs_remove(struct dentry *dentry)
2007 {}
2008
2009 #endif
2010
2011 #ifdef CONFIG_BPF_SYSCALL
2012 union bpf_attr;
2013 struct bpf_map;
2014 struct bpf_prog;
2015 struct bpf_prog_aux;
2016 #ifdef CONFIG_SECURITY
2017 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
2018 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
2019 extern int security_bpf_prog(struct bpf_prog *prog);
2020 extern int security_bpf_map_alloc(struct bpf_map *map);
2021 extern void security_bpf_map_free(struct bpf_map *map);
2022 extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
2023 extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
2024 #else
2025 static inline int security_bpf(int cmd, union bpf_attr *attr,
2026                                              unsigned int size)
2027 {
2028         return 0;
2029 }
2030
2031 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
2032 {
2033         return 0;
2034 }
2035
2036 static inline int security_bpf_prog(struct bpf_prog *prog)
2037 {
2038         return 0;
2039 }
2040
2041 static inline int security_bpf_map_alloc(struct bpf_map *map)
2042 {
2043         return 0;
2044 }
2045
2046 static inline void security_bpf_map_free(struct bpf_map *map)
2047 { }
2048
2049 static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
2050 {
2051         return 0;
2052 }
2053
2054 static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
2055 { }
2056 #endif /* CONFIG_SECURITY */
2057 #endif /* CONFIG_BPF_SYSCALL */
2058
2059 #ifdef CONFIG_PERF_EVENTS
2060 struct perf_event_attr;
2061 struct perf_event;
2062
2063 #ifdef CONFIG_SECURITY
2064 extern int security_perf_event_open(struct perf_event_attr *attr, int type);
2065 extern int security_perf_event_alloc(struct perf_event *event);
2066 extern void security_perf_event_free(struct perf_event *event);
2067 extern int security_perf_event_read(struct perf_event *event);
2068 extern int security_perf_event_write(struct perf_event *event);
2069 #else
2070 static inline int security_perf_event_open(struct perf_event_attr *attr,
2071                                            int type)
2072 {
2073         return 0;
2074 }
2075
2076 static inline int security_perf_event_alloc(struct perf_event *event)
2077 {
2078         return 0;
2079 }
2080
2081 static inline void security_perf_event_free(struct perf_event *event)
2082 {
2083 }
2084
2085 static inline int security_perf_event_read(struct perf_event *event)
2086 {
2087         return 0;
2088 }
2089
2090 static inline int security_perf_event_write(struct perf_event *event)
2091 {
2092         return 0;
2093 }
2094 #endif /* CONFIG_SECURITY */
2095 #endif /* CONFIG_PERF_EVENTS */
2096
2097 #ifdef CONFIG_IO_URING
2098 #ifdef CONFIG_SECURITY
2099 extern int security_uring_override_creds(const struct cred *new);
2100 extern int security_uring_sqpoll(void);
2101 extern int security_uring_cmd(struct io_uring_cmd *ioucmd);
2102 #else
2103 static inline int security_uring_override_creds(const struct cred *new)
2104 {
2105         return 0;
2106 }
2107 static inline int security_uring_sqpoll(void)
2108 {
2109         return 0;
2110 }
2111 static inline int security_uring_cmd(struct io_uring_cmd *ioucmd)
2112 {
2113         return 0;
2114 }
2115 #endif /* CONFIG_SECURITY */
2116 #endif /* CONFIG_IO_URING */
2117
2118 #endif /* ! __LINUX_SECURITY_H */