include/linux/security.h

   1 /*
   2  * Linux Security plug
   3  *
   4  * Copyright (C) 2001 WireX Communications, Inc <[email protected]>
   5  * Copyright (C) 2001 Greg Kroah-Hartman <[email protected]>
   6  * Copyright (C) 2001 Networks Associates Technology, Inc <[email protected]>
   7  * Copyright (C) 2001 James Morris <[email protected]>
   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 fs_context::lsm_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 user_namespace *mnt_userns,
 157                           struct dentry *dentry, const char *name);
 158 int cap_inode_need_killpriv(struct dentry *dentry);
 159 int cap_inode_killpriv(struct user_namespace *mnt_userns,
 160                        struct dentry *dentry);
 161 int cap_inode_getsecurity(struct user_namespace *mnt_userns,
 162                           struct inode *inode, const char *name, void **buffer,
 163                           bool alloc);
 164 extern int cap_mmap_addr(unsigned long addr);
 165 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
 166                          unsigned long prot, unsigned long flags);
 167 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
 168 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 169                           unsigned long arg4, unsigned long arg5);
 170 extern int cap_task_setscheduler(struct task_struct *p);
 171 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
 172 extern int cap_task_setnice(struct task_struct *p, int nice);
 173 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
 174
 175 struct msghdr;
 176 struct sk_buff;
 177 struct sock;
 178 struct sockaddr;
 179 struct socket;
 180 struct flowi_common;
 181 struct dst_entry;
 182 struct xfrm_selector;
 183 struct xfrm_policy;
 184 struct xfrm_state;
 185 struct xfrm_user_sec_ctx;
 186 struct seq_file;
 187 struct sctp_association;
 188
 189 #ifdef CONFIG_MMU
 190 extern unsigned long mmap_min_addr;
 191 extern unsigned long dac_mmap_min_addr;
 192 #else
 193 #define mmap_min_addr           0UL
 194 #define dac_mmap_min_addr       0UL
 195 #endif
 196
 197 /*
 198  * Values used in the task_security_ops calls
 199  */
 200 /* setuid or setgid, id0 == uid or gid */
 201 #define LSM_SETID_ID    1
 202
 203 /* setreuid or setregid, id0 == real, id1 == eff */
 204 #define LSM_SETID_RE    2
 205
 206 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
 207 #define LSM_SETID_RES   4
 208
 209 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
 210 #define LSM_SETID_FS    8
 211
 212 /* Flags for security_task_prlimit(). */
 213 #define LSM_PRLIMIT_READ  1
 214 #define LSM_PRLIMIT_WRITE 2
 215
 216 /* forward declares to avoid warnings */
 217 struct sched_param;
 218 struct request_sock;
 219
 220 /* bprm->unsafe reasons */
 221 #define LSM_UNSAFE_SHARE        1
 222 #define LSM_UNSAFE_PTRACE       2
 223 #define LSM_UNSAFE_NO_NEW_PRIVS 4
 224
 225 #ifdef CONFIG_MMU
 226 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
 227                                  void *buffer, size_t *lenp, loff_t *ppos);
 228 #endif
 229
 230 /* security_inode_init_security callback function to write xattrs */
 231 typedef int (*initxattrs) (struct inode *inode,
 232                            const struct xattr *xattr_array, void *fs_data);
 233
 234
 235 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
 236 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
 237 #define __data_id_stringify(dummy, str) #str,
 238
 239 enum kernel_load_data_id {
 240         __kernel_read_file_id(__data_id_enumify)
 241 };
 242
 243 static const char * const kernel_load_data_str[] = {
 244         __kernel_read_file_id(__data_id_stringify)
 245 };
 246
 247 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
 248 {
 249         if ((unsigned)id >= LOADING_MAX_ID)
 250                 return kernel_load_data_str[LOADING_UNKNOWN];
 251
 252         return kernel_load_data_str[id];
 253 }
 254
 255 #ifdef CONFIG_SECURITY
 256
 257 int call_blocking_lsm_notifier(enum lsm_event event, void *data);
 258 int register_blocking_lsm_notifier(struct notifier_block *nb);
 259 int unregister_blocking_lsm_notifier(struct notifier_block *nb);
 260
 261 /* prototypes */
 262 extern int security_init(void);
 263 extern int early_security_init(void);
 264
 265 /* Security operations */
 266 int security_binder_set_context_mgr(const struct cred *mgr);
 267 int security_binder_transaction(const struct cred *from,
 268                                 const struct cred *to);
 269 int security_binder_transfer_binder(const struct cred *from,
 270                                     const struct cred *to);
 271 int security_binder_transfer_file(const struct cred *from,
 272                                   const struct cred *to, struct file *file);
 273 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
 274 int security_ptrace_traceme(struct task_struct *parent);
 275 int security_capget(struct task_struct *target,
 276                     kernel_cap_t *effective,
 277                     kernel_cap_t *inheritable,
 278                     kernel_cap_t *permitted);
 279 int security_capset(struct cred *new, const struct cred *old,
 280                     const kernel_cap_t *effective,
 281                     const kernel_cap_t *inheritable,
 282                     const kernel_cap_t *permitted);
 283 int security_capable(const struct cred *cred,
 284                        struct user_namespace *ns,
 285                        int cap,
 286                        unsigned int opts);
 287 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
 288 int security_quota_on(struct dentry *dentry);
 289 int security_syslog(int type);
 290 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
 291 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
 292 int security_bprm_creds_for_exec(struct linux_binprm *bprm);
 293 int security_bprm_creds_from_file(struct linux_binprm *bprm, struct file *file);
 294 int security_bprm_check(struct linux_binprm *bprm);
 295 void security_bprm_committing_creds(struct linux_binprm *bprm);
 296 void security_bprm_committed_creds(struct linux_binprm *bprm);
 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_old_inode_init_security(struct inode *inode, struct inode *dir,
 341                                      const struct qstr *qstr, const char **name,
 342                                      void **value, size_t *len);
 343 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
 344 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 345                          struct dentry *new_dentry);
 346 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
 347 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 348                            const char *old_name);
 349 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 350 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
 351 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
 352 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 353                           struct inode *new_dir, struct dentry *new_dentry,
 354                           unsigned int flags);
 355 int security_inode_readlink(struct dentry *dentry);
 356 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
 357                                bool rcu);
 358 int security_inode_permission(struct inode *inode, int mask);
 359 int security_inode_setattr(struct user_namespace *mnt_userns,
 360                            struct dentry *dentry, struct iattr *attr);
 361 int security_inode_getattr(const struct path *path);
 362 int security_inode_setxattr(struct user_namespace *mnt_userns,
 363                             struct dentry *dentry, const char *name,
 364                             const void *value, size_t size, int flags);
 365 int security_inode_set_acl(struct user_namespace *mnt_userns,
 366                            struct dentry *dentry, const char *acl_name,
 367                            struct posix_acl *kacl);
 368 int security_inode_get_acl(struct user_namespace *mnt_userns,
 369                            struct dentry *dentry, const char *acl_name);
 370 int security_inode_remove_acl(struct user_namespace *mnt_userns,
 371                               struct dentry *dentry, const char *acl_name);
 372 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 373                                   const void *value, size_t size, int flags);
 374 int security_inode_getxattr(struct dentry *dentry, const char *name);
 375 int security_inode_listxattr(struct dentry *dentry);
 376 int security_inode_removexattr(struct user_namespace *mnt_userns,
 377                                struct dentry *dentry, const char *name);
 378 int security_inode_need_killpriv(struct dentry *dentry);
 379 int security_inode_killpriv(struct user_namespace *mnt_userns,
 380                             struct dentry *dentry);
 381 int security_inode_getsecurity(struct user_namespace *mnt_userns,
 382                                struct inode *inode, const char *name,
 383                                void **buffer, bool alloc);
 384 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
 385 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
 386 void security_inode_getsecid(struct inode *inode, u32 *secid);
 387 int security_inode_copy_up(struct dentry *src, struct cred **new);
 388 int security_inode_copy_up_xattr(const char *name);
 389 int security_kernfs_init_security(struct kernfs_node *kn_dir,
 390                                   struct kernfs_node *kn);
 391 int security_file_permission(struct file *file, int mask);
 392 int security_file_alloc(struct file *file);
 393 void security_file_free(struct file *file);
 394 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 395 int security_mmap_file(struct file *file, unsigned long prot,
 396                         unsigned long flags);
 397 int security_mmap_addr(unsigned long addr);
 398 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 399                            unsigned long prot);
 400 int security_file_lock(struct file *file, unsigned int cmd);
 401 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
 402 void security_file_set_fowner(struct file *file);
 403 int security_file_send_sigiotask(struct task_struct *tsk,
 404                                  struct fown_struct *fown, int sig);
 405 int security_file_receive(struct file *file);
 406 int security_file_open(struct file *file);
 407 int security_file_truncate(struct file *file);
 408 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
 409 void security_task_free(struct task_struct *task);
 410 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
 411 void security_cred_free(struct cred *cred);
 412 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
 413 void security_transfer_creds(struct cred *new, const struct cred *old);
 414 void security_cred_getsecid(const struct cred *c, u32 *secid);
 415 int security_kernel_act_as(struct cred *new, u32 secid);
 416 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
 417 int security_kernel_module_request(char *kmod_name);
 418 int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
 419 int security_kernel_post_load_data(char *buf, loff_t size,
 420                                    enum kernel_load_data_id id,
 421                                    char *description);
 422 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
 423                               bool contents);
 424 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
 425                                    enum kernel_read_file_id id);
 426 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 427                              int flags);
 428 int security_task_fix_setgid(struct cred *new, const struct cred *old,
 429                              int flags);
 430 int security_task_fix_setgroups(struct cred *new, const struct cred *old);
 431 int security_task_setpgid(struct task_struct *p, pid_t pgid);
 432 int security_task_getpgid(struct task_struct *p);
 433 int security_task_getsid(struct task_struct *p);
 434 void security_current_getsecid_subj(u32 *secid);
 435 void security_task_getsecid_obj(struct task_struct *p, u32 *secid);
 436 int security_task_setnice(struct task_struct *p, int nice);
 437 int security_task_setioprio(struct task_struct *p, int ioprio);
 438 int security_task_getioprio(struct task_struct *p);
 439 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
 440                           unsigned int flags);
 441 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 442                 struct rlimit *new_rlim);
 443 int security_task_setscheduler(struct task_struct *p);
 444 int security_task_getscheduler(struct task_struct *p);
 445 int security_task_movememory(struct task_struct *p);
 446 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
 447                         int sig, const struct cred *cred);
 448 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 449                         unsigned long arg4, unsigned long arg5);
 450 void security_task_to_inode(struct task_struct *p, struct inode *inode);
 451 int security_create_user_ns(const struct cred *cred);
 452 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
 453 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
 454 int security_msg_msg_alloc(struct msg_msg *msg);
 455 void security_msg_msg_free(struct msg_msg *msg);
 456 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
 457 void security_msg_queue_free(struct kern_ipc_perm *msq);
 458 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
 459 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
 460 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
 461                               struct msg_msg *msg, int msqflg);
 462 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
 463                               struct task_struct *target, long type, int mode);
 464 int security_shm_alloc(struct kern_ipc_perm *shp);
 465 void security_shm_free(struct kern_ipc_perm *shp);
 466 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
 467 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
 468 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
 469 int security_sem_alloc(struct kern_ipc_perm *sma);
 470 void security_sem_free(struct kern_ipc_perm *sma);
 471 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
 472 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
 473 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
 474                         unsigned nsops, int alter);
 475 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
 476 int security_getprocattr(struct task_struct *p, const char *lsm, const char *name,
 477                          char **value);
 478 int security_setprocattr(const char *lsm, const char *name, void *value,
 479                          size_t size);
 480 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
 481 int security_ismaclabel(const char *name);
 482 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
 483 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
 484 void security_release_secctx(char *secdata, u32 seclen);
 485 void security_inode_invalidate_secctx(struct inode *inode);
 486 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
 487 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
 488 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
 489 int security_locked_down(enum lockdown_reason what);
 490 #else /* CONFIG_SECURITY */
 491
 492 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
 493 {
 494         return 0;
 495 }
 496
 497 static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
 498 {
 499         return 0;
 500 }
 501
 502 static inline  int unregister_blocking_lsm_notifier(struct notifier_block *nb)
 503 {
 504         return 0;
 505 }
 506
 507 static inline void security_free_mnt_opts(void **mnt_opts)
 508 {
 509 }
 510
 511 /*
 512  * This is the default capabilities functionality.  Most of these functions
 513  * are just stubbed out, but a few must call the proper capable code.
 514  */
 515
 516 static inline int security_init(void)
 517 {
 518         return 0;
 519 }
 520
 521 static inline int early_security_init(void)
 522 {
 523         return 0;
 524 }
 525
 526 static inline int security_binder_set_context_mgr(const struct cred *mgr)
 527 {
 528         return 0;
 529 }
 530
 531 static inline int security_binder_transaction(const struct cred *from,
 532                                               const struct cred *to)
 533 {
 534         return 0;
 535 }
 536
 537 static inline int security_binder_transfer_binder(const struct cred *from,
 538                                                   const struct cred *to)
 539 {
 540         return 0;
 541 }
 542
 543 static inline int security_binder_transfer_file(const struct cred *from,
 544                                                 const struct cred *to,
 545                                                 struct file *file)
 546 {
 547         return 0;
 548 }
 549
 550 static inline int security_ptrace_access_check(struct task_struct *child,
 551                                              unsigned int mode)
 552 {
 553         return cap_ptrace_access_check(child, mode);
 554 }
 555
 556 static inline int security_ptrace_traceme(struct task_struct *parent)
 557 {
 558         return cap_ptrace_traceme(parent);
 559 }
 560
 561 static inline int security_capget(struct task_struct *target,
 562                                    kernel_cap_t *effective,
 563                                    kernel_cap_t *inheritable,
 564                                    kernel_cap_t *permitted)
 565 {
 566         return cap_capget(target, effective, inheritable, permitted);
 567 }
 568
 569 static inline int security_capset(struct cred *new,
 570                                    const struct cred *old,
 571                                    const kernel_cap_t *effective,
 572                                    const kernel_cap_t *inheritable,
 573                                    const kernel_cap_t *permitted)
 574 {
 575         return cap_capset(new, old, effective, inheritable, permitted);
 576 }
 577
 578 static inline int security_capable(const struct cred *cred,
 579                                    struct user_namespace *ns,
 580                                    int cap,
 581                                    unsigned int opts)
 582 {
 583         return cap_capable(cred, ns, cap, opts);
 584 }
 585
 586 static inline int security_quotactl(int cmds, int type, int id,
 587                                      struct super_block *sb)
 588 {
 589         return 0;
 590 }
 591
 592 static inline int security_quota_on(struct dentry *dentry)
 593 {
 594         return 0;
 595 }
 596
 597 static inline int security_syslog(int type)
 598 {
 599         return 0;
 600 }
 601
 602 static inline int security_settime64(const struct timespec64 *ts,
 603                                      const struct timezone *tz)
 604 {
 605         return cap_settime(ts, tz);
 606 }
 607
 608 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 609 {
 610         return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
 611 }
 612
 613 static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
 614 {
 615         return 0;
 616 }
 617
 618 static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
 619                                                 struct file *file)
 620 {
 621         return cap_bprm_creds_from_file(bprm, file);
 622 }
 623
 624 static inline int security_bprm_check(struct linux_binprm *bprm)
 625 {
 626         return 0;
 627 }
 628
 629 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
 630 {
 631 }
 632
 633 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
 634 {
 635 }
 636
 637 static inline int security_fs_context_dup(struct fs_context *fc,
 638                                           struct fs_context *src_fc)
 639 {
 640         return 0;
 641 }
 642 static inline int security_fs_context_parse_param(struct fs_context *fc,
 643                                                   struct fs_parameter *param)
 644 {
 645         return -ENOPARAM;
 646 }
 647
 648 static inline int security_sb_alloc(struct super_block *sb)
 649 {
 650         return 0;
 651 }
 652
 653 static inline void security_sb_delete(struct super_block *sb)
 654 { }
 655
 656 static inline void security_sb_free(struct super_block *sb)
 657 { }
 658
 659 static inline int security_sb_eat_lsm_opts(char *options,
 660                                            void **mnt_opts)
 661 {
 662         return 0;
 663 }
 664
 665 static inline int security_sb_remount(struct super_block *sb,
 666                                       void *mnt_opts)
 667 {
 668         return 0;
 669 }
 670
 671 static inline int security_sb_mnt_opts_compat(struct super_block *sb,
 672                                               void *mnt_opts)
 673 {
 674         return 0;
 675 }
 676
 677
 678 static inline int security_sb_kern_mount(struct super_block *sb)
 679 {
 680         return 0;
 681 }
 682
 683 static inline int security_sb_show_options(struct seq_file *m,
 684                                            struct super_block *sb)
 685 {
 686         return 0;
 687 }
 688
 689 static inline int security_sb_statfs(struct dentry *dentry)
 690 {
 691         return 0;
 692 }
 693
 694 static inline int security_sb_mount(const char *dev_name, const struct path *path,
 695                                     const char *type, unsigned long flags,
 696                                     void *data)
 697 {
 698         return 0;
 699 }
 700
 701 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
 702 {
 703         return 0;
 704 }
 705
 706 static inline int security_sb_pivotroot(const struct path *old_path,
 707                                         const struct path *new_path)
 708 {
 709         return 0;
 710 }
 711
 712 static inline int security_sb_set_mnt_opts(struct super_block *sb,
 713                                            void *mnt_opts,
 714                                            unsigned long kern_flags,
 715                                            unsigned long *set_kern_flags)
 716 {
 717         return 0;
 718 }
 719
 720 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 721                                               struct super_block *newsb,
 722                                               unsigned long kern_flags,
 723                                               unsigned long *set_kern_flags)
 724 {
 725         return 0;
 726 }
 727
 728 static inline int security_move_mount(const struct path *from_path,
 729                                       const struct path *to_path)
 730 {
 731         return 0;
 732 }
 733
 734 static inline int security_path_notify(const struct path *path, u64 mask,
 735                                 unsigned int obj_type)
 736 {
 737         return 0;
 738 }
 739
 740 static inline int security_inode_alloc(struct inode *inode)
 741 {
 742         return 0;
 743 }
 744
 745 static inline void security_inode_free(struct inode *inode)
 746 { }
 747
 748 static inline int security_dentry_init_security(struct dentry *dentry,
 749                                                  int mode,
 750                                                  const struct qstr *name,
 751                                                  const char **xattr_name,
 752                                                  void **ctx,
 753                                                  u32 *ctxlen)
 754 {
 755         return -EOPNOTSUPP;
 756 }
 757
 758 static inline int security_dentry_create_files_as(struct dentry *dentry,
 759                                                   int mode, struct qstr *name,
 760                                                   const struct cred *old,
 761                                                   struct cred *new)
 762 {
 763         return 0;
 764 }
 765
 766
 767 static inline int security_inode_init_security(struct inode *inode,
 768                                                 struct inode *dir,
 769                                                 const struct qstr *qstr,
 770                                                 const initxattrs xattrs,
 771                                                 void *fs_data)
 772 {
 773         return 0;
 774 }
 775
 776 static inline int security_inode_init_security_anon(struct inode *inode,
 777                                                     const struct qstr *name,
 778                                                     const struct inode *context_inode)
 779 {
 780         return 0;
 781 }
 782
 783 static inline int security_old_inode_init_security(struct inode *inode,
 784                                                    struct inode *dir,
 785                                                    const struct qstr *qstr,
 786                                                    const char **name,
 787                                                    void **value, size_t *len)
 788 {
 789         return -EOPNOTSUPP;
 790 }
 791
 792 static inline int security_inode_create(struct inode *dir,
 793                                          struct dentry *dentry,
 794                                          umode_t mode)
 795 {
 796         return 0;
 797 }
 798
 799 static inline int security_inode_link(struct dentry *old_dentry,
 800                                        struct inode *dir,
 801                                        struct dentry *new_dentry)
 802 {
 803         return 0;
 804 }
 805
 806 static inline int security_inode_unlink(struct inode *dir,
 807                                          struct dentry *dentry)
 808 {
 809         return 0;
 810 }
 811
 812 static inline int security_inode_symlink(struct inode *dir,
 813                                           struct dentry *dentry,
 814                                           const char *old_name)
 815 {
 816         return 0;
 817 }
 818
 819 static inline int security_inode_mkdir(struct inode *dir,
 820                                         struct dentry *dentry,
 821                                         int mode)
 822 {
 823         return 0;
 824 }
 825
 826 static inline int security_inode_rmdir(struct inode *dir,
 827                                         struct dentry *dentry)
 828 {
 829         return 0;
 830 }
 831
 832 static inline int security_inode_mknod(struct inode *dir,
 833                                         struct dentry *dentry,
 834                                         int mode, dev_t dev)
 835 {
 836         return 0;
 837 }
 838
 839 static inline int security_inode_rename(struct inode *old_dir,
 840                                          struct dentry *old_dentry,
 841                                          struct inode *new_dir,
 842                                          struct dentry *new_dentry,
 843                                          unsigned int flags)
 844 {
 845         return 0;
 846 }
 847
 848 static inline int security_inode_readlink(struct dentry *dentry)
 849 {
 850         return 0;
 851 }
 852
 853 static inline int security_inode_follow_link(struct dentry *dentry,
 854                                              struct inode *inode,
 855                                              bool rcu)
 856 {
 857         return 0;
 858 }
 859
 860 static inline int security_inode_permission(struct inode *inode, int mask)
 861 {
 862         return 0;
 863 }
 864
 865 static inline int security_inode_setattr(struct user_namespace *mnt_userns,
 866                                          struct dentry *dentry,
 867                                          struct iattr *attr)
 868 {
 869         return 0;
 870 }
 871
 872 static inline int security_inode_getattr(const struct path *path)
 873 {
 874         return 0;
 875 }
 876
 877 static inline int security_inode_setxattr(struct user_namespace *mnt_userns,
 878                 struct dentry *dentry, const char *name, const void *value,
 879                 size_t size, int flags)
 880 {
 881         return cap_inode_setxattr(dentry, name, value, size, flags);
 882 }
 883
 884 static inline int security_inode_set_acl(struct user_namespace *mnt_userns,
 885                                          struct dentry *dentry,
 886                                          const char *acl_name,
 887                                          struct posix_acl *kacl)
 888 {
 889         return 0;
 890 }
 891
 892 static inline int security_inode_get_acl(struct user_namespace *mnt_userns,
 893                                          struct dentry *dentry,
 894                                          const char *acl_name)
 895 {
 896         return 0;
 897 }
 898
 899 static inline int security_inode_remove_acl(struct user_namespace *mnt_userns,
 900                                             struct dentry *dentry,
 901                                             const char *acl_name)
 902 {
 903         return 0;
 904 }
 905
 906 static inline void security_inode_post_setxattr(struct dentry *dentry,
 907                 const char *name, const void *value, size_t size, int flags)
 908 { }
 909
 910 static inline int security_inode_getxattr(struct dentry *dentry,
 911                         const char *name)
 912 {
 913         return 0;
 914 }
 915
 916 static inline int security_inode_listxattr(struct dentry *dentry)
 917 {
 918         return 0;
 919 }
 920
 921 static inline int security_inode_removexattr(struct user_namespace *mnt_userns,
 922                                              struct dentry *dentry,
 923                                              const char *name)
 924 {
 925         return cap_inode_removexattr(mnt_userns, dentry, name);
 926 }
 927
 928 static inline int security_inode_need_killpriv(struct dentry *dentry)
 929 {
 930         return cap_inode_need_killpriv(dentry);
 931 }
 932
 933 static inline int security_inode_killpriv(struct user_namespace *mnt_userns,
 934                                           struct dentry *dentry)
 935 {
 936         return cap_inode_killpriv(mnt_userns, dentry);
 937 }
 938
 939 static inline int security_inode_getsecurity(struct user_namespace *mnt_userns,
 940                                              struct inode *inode,
 941                                              const char *name, void **buffer,
 942                                              bool alloc)
 943 {
 944         return cap_inode_getsecurity(mnt_userns, inode, name, buffer, alloc);
 945 }
 946
 947 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 948 {
 949         return -EOPNOTSUPP;
 950 }
 951
 952 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 953 {
 954         return 0;
 955 }
 956
 957 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
 958 {
 959         *secid = 0;
 960 }
 961
 962 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
 963 {
 964         return 0;
 965 }
 966
 967 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
 968                                                 struct kernfs_node *kn)
 969 {
 970         return 0;
 971 }
 972
 973 static inline int security_inode_copy_up_xattr(const char *name)
 974 {
 975         return -EOPNOTSUPP;
 976 }
 977
 978 static inline int security_file_permission(struct file *file, int mask)
 979 {
 980         return 0;
 981 }
 982
 983 static inline int security_file_alloc(struct file *file)
 984 {
 985         return 0;
 986 }
 987
 988 static inline void security_file_free(struct file *file)
 989 { }
 990
 991 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
 992                                       unsigned long arg)
 993 {
 994         return 0;
 995 }
 996
 997 static inline int security_mmap_file(struct file *file, unsigned long prot,
 998                                      unsigned long flags)
 999 {
1000         return 0;
1001 }
1002
1003 static inline int security_mmap_addr(unsigned long addr)
1004 {
1005         return cap_mmap_addr(addr);
1006 }
1007
1008 static inline int security_file_mprotect(struct vm_area_struct *vma,
1009                                          unsigned long reqprot,
1010                                          unsigned long prot)
1011 {
1012         return 0;
1013 }
1014
1015 static inline int security_file_lock(struct file *file, unsigned int cmd)
1016 {
1017         return 0;
1018 }
1019
1020 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
1021                                       unsigned long arg)
1022 {
1023         return 0;
1024 }
1025
1026 static inline void security_file_set_fowner(struct file *file)
1027 {
1028         return;
1029 }
1030
1031 static inline int security_file_send_sigiotask(struct task_struct *tsk,
1032                                                struct fown_struct *fown,
1033                                                int sig)
1034 {
1035         return 0;
1036 }
1037
1038 static inline int security_file_receive(struct file *file)
1039 {
1040         return 0;
1041 }
1042
1043 static inline int security_file_open(struct file *file)
1044 {
1045         return 0;
1046 }
1047
1048 static inline int security_file_truncate(struct file *file)
1049 {
1050         return 0;
1051 }
1052
1053 static inline int security_task_alloc(struct task_struct *task,
1054                                       unsigned long clone_flags)
1055 {
1056         return 0;
1057 }
1058
1059 static inline void security_task_free(struct task_struct *task)
1060 { }
1061
1062 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
1063 {
1064         return 0;
1065 }
1066
1067 static inline void security_cred_free(struct cred *cred)
1068 { }
1069
1070 static inline int security_prepare_creds(struct cred *new,
1071                                          const struct cred *old,
1072                                          gfp_t gfp)
1073 {
1074         return 0;
1075 }
1076
1077 static inline void security_transfer_creds(struct cred *new,
1078                                            const struct cred *old)
1079 {
1080 }
1081
1082 static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
1083 {
1084         *secid = 0;
1085 }
1086
1087 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1088 {
1089         return 0;
1090 }
1091
1092 static inline int security_kernel_create_files_as(struct cred *cred,
1093                                                   struct inode *inode)
1094 {
1095         return 0;
1096 }
1097
1098 static inline int security_kernel_module_request(char *kmod_name)
1099 {
1100         return 0;
1101 }
1102
1103 static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents)
1104 {
1105         return 0;
1106 }
1107
1108 static inline int security_kernel_post_load_data(char *buf, loff_t size,
1109                                                  enum kernel_load_data_id id,
1110                                                  char *description)
1111 {
1112         return 0;
1113 }
1114
1115 static inline int security_kernel_read_file(struct file *file,
1116                                             enum kernel_read_file_id id,
1117                                             bool contents)
1118 {
1119         return 0;
1120 }
1121
1122 static inline int security_kernel_post_read_file(struct file *file,
1123                                                  char *buf, loff_t size,
1124                                                  enum kernel_read_file_id id)
1125 {
1126         return 0;
1127 }
1128
1129 static inline int security_task_fix_setuid(struct cred *new,
1130                                            const struct cred *old,
1131                                            int flags)
1132 {
1133         return cap_task_fix_setuid(new, old, flags);
1134 }
1135
1136 static inline int security_task_fix_setgid(struct cred *new,
1137                                            const struct cred *old,
1138                                            int flags)
1139 {
1140         return 0;
1141 }
1142
1143 static inline int security_task_fix_setgroups(struct cred *new,
1144                                            const struct cred *old)
1145 {
1146         return 0;
1147 }
1148
1149 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1150 {
1151         return 0;
1152 }
1153
1154 static inline int security_task_getpgid(struct task_struct *p)
1155 {
1156         return 0;
1157 }
1158
1159 static inline int security_task_getsid(struct task_struct *p)
1160 {
1161         return 0;
1162 }
1163
1164 static inline void security_current_getsecid_subj(u32 *secid)
1165 {
1166         *secid = 0;
1167 }
1168
1169 static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid)
1170 {
1171         *secid = 0;
1172 }
1173
1174 static inline int security_task_setnice(struct task_struct *p, int nice)
1175 {
1176         return cap_task_setnice(p, nice);
1177 }
1178
1179 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1180 {
1181         return cap_task_setioprio(p, ioprio);
1182 }
1183
1184 static inline int security_task_getioprio(struct task_struct *p)
1185 {
1186         return 0;
1187 }
1188
1189 static inline int security_task_prlimit(const struct cred *cred,
1190                                         const struct cred *tcred,
1191                                         unsigned int flags)
1192 {
1193         return 0;
1194 }
1195
1196 static inline int security_task_setrlimit(struct task_struct *p,
1197                                           unsigned int resource,
1198                                           struct rlimit *new_rlim)
1199 {
1200         return 0;
1201 }
1202
1203 static inline int security_task_setscheduler(struct task_struct *p)
1204 {
1205         return cap_task_setscheduler(p);
1206 }
1207
1208 static inline int security_task_getscheduler(struct task_struct *p)
1209 {
1210         return 0;
1211 }
1212
1213 static inline int security_task_movememory(struct task_struct *p)
1214 {
1215         return 0;
1216 }
1217
1218 static inline int security_task_kill(struct task_struct *p,
1219                                      struct kernel_siginfo *info, int sig,
1220                                      const struct cred *cred)
1221 {
1222         return 0;
1223 }
1224
1225 static inline int security_task_prctl(int option, unsigned long arg2,
1226                                       unsigned long arg3,
1227                                       unsigned long arg4,
1228                                       unsigned long arg5)
1229 {
1230         return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1231 }
1232
1233 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1234 { }
1235
1236 static inline int security_create_user_ns(const struct cred *cred)
1237 {
1238         return 0;
1239 }
1240
1241 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1242                                           short flag)
1243 {
1244         return 0;
1245 }
1246
1247 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1248 {
1249         *secid = 0;
1250 }
1251
1252 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1253 {
1254         return 0;
1255 }
1256
1257 static inline void security_msg_msg_free(struct msg_msg *msg)
1258 { }
1259
1260 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1261 {
1262         return 0;
1263 }
1264
1265 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1266 { }
1267
1268 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1269                                                int msqflg)
1270 {
1271         return 0;
1272 }
1273
1274 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1275 {
1276         return 0;
1277 }
1278
1279 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1280                                             struct msg_msg *msg, int msqflg)
1281 {
1282         return 0;
1283 }
1284
1285 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1286                                             struct msg_msg *msg,
1287                                             struct task_struct *target,
1288                                             long type, int mode)
1289 {
1290         return 0;
1291 }
1292
1293 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1294 {
1295         return 0;
1296 }
1297
1298 static inline void security_shm_free(struct kern_ipc_perm *shp)
1299 { }
1300
1301 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1302                                          int shmflg)
1303 {
1304         return 0;
1305 }
1306
1307 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1308 {
1309         return 0;
1310 }
1311
1312 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1313                                      char __user *shmaddr, int shmflg)
1314 {
1315         return 0;
1316 }
1317
1318 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1319 {
1320         return 0;
1321 }
1322
1323 static inline void security_sem_free(struct kern_ipc_perm *sma)
1324 { }
1325
1326 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1327 {
1328         return 0;
1329 }
1330
1331 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1332 {
1333         return 0;
1334 }
1335
1336 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1337                                      struct sembuf *sops, unsigned nsops,
1338                                      int alter)
1339 {
1340         return 0;
1341 }
1342
1343 static inline void security_d_instantiate(struct dentry *dentry,
1344                                           struct inode *inode)
1345 { }
1346
1347 static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1348                                        const char *name, char **value)
1349 {
1350         return -EINVAL;
1351 }
1352
1353 static inline int security_setprocattr(const char *lsm, char *name,
1354                                        void *value, size_t size)
1355 {
1356         return -EINVAL;
1357 }
1358
1359 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1360 {
1361         return 0;
1362 }
1363
1364 static inline int security_ismaclabel(const char *name)
1365 {
1366         return 0;
1367 }
1368
1369 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1370 {
1371         return -EOPNOTSUPP;
1372 }
1373
1374 static inline int security_secctx_to_secid(const char *secdata,
1375                                            u32 seclen,
1376                                            u32 *secid)
1377 {
1378         return -EOPNOTSUPP;
1379 }
1380
1381 static inline void security_release_secctx(char *secdata, u32 seclen)
1382 {
1383 }
1384
1385 static inline void security_inode_invalidate_secctx(struct inode *inode)
1386 {
1387 }
1388
1389 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1390 {
1391         return -EOPNOTSUPP;
1392 }
1393 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1394 {
1395         return -EOPNOTSUPP;
1396 }
1397 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1398 {
1399         return -EOPNOTSUPP;
1400 }
1401 static inline int security_locked_down(enum lockdown_reason what)
1402 {
1403         return 0;
1404 }
1405 #endif  /* CONFIG_SECURITY */
1406
1407 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1408 int security_post_notification(const struct cred *w_cred,
1409                                const struct cred *cred,
1410                                struct watch_notification *n);
1411 #else
1412 static inline int security_post_notification(const struct cred *w_cred,
1413                                              const struct cred *cred,
1414                                              struct watch_notification *n)
1415 {
1416         return 0;
1417 }
1418 #endif
1419
1420 #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1421 int security_watch_key(struct key *key);
1422 #else
1423 static inline int security_watch_key(struct key *key)
1424 {
1425         return 0;
1426 }
1427 #endif
1428
1429 #ifdef CONFIG_SECURITY_NETWORK
1430
1431 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1432 int security_unix_may_send(struct socket *sock,  struct socket *other);
1433 int security_socket_create(int family, int type, int protocol, int kern);
1434 int security_socket_post_create(struct socket *sock, int family,
1435                                 int type, int protocol, int kern);
1436 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1437 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1438 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1439 int security_socket_listen(struct socket *sock, int backlog);
1440 int security_socket_accept(struct socket *sock, struct socket *newsock);
1441 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1442 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1443                             int size, int flags);
1444 int security_socket_getsockname(struct socket *sock);
1445 int security_socket_getpeername(struct socket *sock);
1446 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1447 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1448 int security_socket_shutdown(struct socket *sock, int how);
1449 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1450 int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval,
1451                                       sockptr_t optlen, unsigned int len);
1452 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1453 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1454 void security_sk_free(struct sock *sk);
1455 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1456 void security_sk_classify_flow(struct sock *sk, struct flowi_common *flic);
1457 void security_req_classify_flow(const struct request_sock *req,
1458                                 struct flowi_common *flic);
1459 void security_sock_graft(struct sock*sk, struct socket *parent);
1460 int security_inet_conn_request(const struct sock *sk,
1461                         struct sk_buff *skb, struct request_sock *req);
1462 void security_inet_csk_clone(struct sock *newsk,
1463                         const struct request_sock *req);
1464 void security_inet_conn_established(struct sock *sk,
1465                         struct sk_buff *skb);
1466 int security_secmark_relabel_packet(u32 secid);
1467 void security_secmark_refcount_inc(void);
1468 void security_secmark_refcount_dec(void);
1469 int security_tun_dev_alloc_security(void **security);
1470 void security_tun_dev_free_security(void *security);
1471 int security_tun_dev_create(void);
1472 int security_tun_dev_attach_queue(void *security);
1473 int security_tun_dev_attach(struct sock *sk, void *security);
1474 int security_tun_dev_open(void *security);
1475 int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb);
1476 int security_sctp_bind_connect(struct sock *sk, int optname,
1477                                struct sockaddr *address, int addrlen);
1478 void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
1479                             struct sock *newsk);
1480 int security_sctp_assoc_established(struct sctp_association *asoc,
1481                                     struct sk_buff *skb);
1482
1483 #else   /* CONFIG_SECURITY_NETWORK */
1484 static inline int security_unix_stream_connect(struct sock *sock,
1485                                                struct sock *other,
1486                                                struct sock *newsk)
1487 {
1488         return 0;
1489 }
1490
1491 static inline int security_unix_may_send(struct socket *sock,
1492                                          struct socket *other)
1493 {
1494         return 0;
1495 }
1496
1497 static inline int security_socket_create(int family, int type,
1498                                          int protocol, int kern)
1499 {
1500         return 0;
1501 }
1502
1503 static inline int security_socket_post_create(struct socket *sock,
1504                                               int family,
1505                                               int type,
1506                                               int protocol, int kern)
1507 {
1508         return 0;
1509 }
1510
1511 static inline int security_socket_socketpair(struct socket *socka,
1512                                              struct socket *sockb)
1513 {
1514         return 0;
1515 }
1516
1517 static inline int security_socket_bind(struct socket *sock,
1518                                        struct sockaddr *address,
1519                                        int addrlen)
1520 {
1521         return 0;
1522 }
1523
1524 static inline int security_socket_connect(struct socket *sock,
1525                                           struct sockaddr *address,
1526                                           int addrlen)
1527 {
1528         return 0;
1529 }
1530
1531 static inline int security_socket_listen(struct socket *sock, int backlog)
1532 {
1533         return 0;
1534 }
1535
1536 static inline int security_socket_accept(struct socket *sock,
1537                                          struct socket *newsock)
1538 {
1539         return 0;
1540 }
1541
1542 static inline int security_socket_sendmsg(struct socket *sock,
1543                                           struct msghdr *msg, int size)
1544 {
1545         return 0;
1546 }
1547
1548 static inline int security_socket_recvmsg(struct socket *sock,
1549                                           struct msghdr *msg, int size,
1550                                           int flags)
1551 {
1552         return 0;
1553 }
1554
1555 static inline int security_socket_getsockname(struct socket *sock)
1556 {
1557         return 0;
1558 }
1559
1560 static inline int security_socket_getpeername(struct socket *sock)
1561 {
1562         return 0;
1563 }
1564
1565 static inline int security_socket_getsockopt(struct socket *sock,
1566                                              int level, int optname)
1567 {
1568         return 0;
1569 }
1570
1571 static inline int security_socket_setsockopt(struct socket *sock,
1572                                              int level, int optname)
1573 {
1574         return 0;
1575 }
1576
1577 static inline int security_socket_shutdown(struct socket *sock, int how)
1578 {
1579         return 0;
1580 }
1581 static inline int security_sock_rcv_skb(struct sock *sk,
1582                                         struct sk_buff *skb)
1583 {
1584         return 0;
1585 }
1586
1587 static inline int security_socket_getpeersec_stream(struct socket *sock,
1588                                                     sockptr_t optval,
1589                                                     sockptr_t optlen,
1590                                                     unsigned int len)
1591 {
1592         return -ENOPROTOOPT;
1593 }
1594
1595 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1596 {
1597         return -ENOPROTOOPT;
1598 }
1599
1600 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1601 {
1602         return 0;
1603 }
1604
1605 static inline void security_sk_free(struct sock *sk)
1606 {
1607 }
1608
1609 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1610 {
1611 }
1612
1613 static inline void security_sk_classify_flow(struct sock *sk,
1614                                              struct flowi_common *flic)
1615 {
1616 }
1617
1618 static inline void security_req_classify_flow(const struct request_sock *req,
1619                                               struct flowi_common *flic)
1620 {
1621 }
1622
1623 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1624 {
1625 }
1626
1627 static inline int security_inet_conn_request(const struct sock *sk,
1628                         struct sk_buff *skb, struct request_sock *req)
1629 {
1630         return 0;
1631 }
1632
1633 static inline void security_inet_csk_clone(struct sock *newsk,
1634                         const struct request_sock *req)
1635 {
1636 }
1637
1638 static inline void security_inet_conn_established(struct sock *sk,
1639                         struct sk_buff *skb)
1640 {
1641 }
1642
1643 static inline int security_secmark_relabel_packet(u32 secid)
1644 {
1645         return 0;
1646 }
1647
1648 static inline void security_secmark_refcount_inc(void)
1649 {
1650 }
1651
1652 static inline void security_secmark_refcount_dec(void)
1653 {
1654 }
1655
1656 static inline int security_tun_dev_alloc_security(void **security)
1657 {
1658         return 0;
1659 }
1660
1661 static inline void security_tun_dev_free_security(void *security)
1662 {
1663 }
1664
1665 static inline int security_tun_dev_create(void)
1666 {
1667         return 0;
1668 }
1669
1670 static inline int security_tun_dev_attach_queue(void *security)
1671 {
1672         return 0;
1673 }
1674
1675 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1676 {
1677         return 0;
1678 }
1679
1680 static inline int security_tun_dev_open(void *security)
1681 {
1682         return 0;
1683 }
1684
1685 static inline int security_sctp_assoc_request(struct sctp_association *asoc,
1686                                               struct sk_buff *skb)
1687 {
1688         return 0;
1689 }
1690
1691 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1692                                              struct sockaddr *address,
1693                                              int addrlen)
1694 {
1695         return 0;
1696 }
1697
1698 static inline void security_sctp_sk_clone(struct sctp_association *asoc,
1699                                           struct sock *sk,
1700                                           struct sock *newsk)
1701 {
1702 }
1703
1704 static inline int security_sctp_assoc_established(struct sctp_association *asoc,
1705                                                   struct sk_buff *skb)
1706 {
1707         return 0;
1708 }
1709 #endif  /* CONFIG_SECURITY_NETWORK */
1710
1711 #ifdef CONFIG_SECURITY_INFINIBAND
1712 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1713 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1714 int security_ib_alloc_security(void **sec);
1715 void security_ib_free_security(void *sec);
1716 #else   /* CONFIG_SECURITY_INFINIBAND */
1717 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1718 {
1719         return 0;
1720 }
1721
1722 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1723 {
1724         return 0;
1725 }
1726
1727 static inline int security_ib_alloc_security(void **sec)
1728 {
1729         return 0;
1730 }
1731
1732 static inline void security_ib_free_security(void *sec)
1733 {
1734 }
1735 #endif  /* CONFIG_SECURITY_INFINIBAND */
1736
1737 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1738
1739 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1740                                struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1741 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1742 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1743 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1744 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1745 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1746                                       struct xfrm_sec_ctx *polsec, u32 secid);
1747 int security_xfrm_state_delete(struct xfrm_state *x);
1748 void security_xfrm_state_free(struct xfrm_state *x);
1749 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
1750 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1751                                        struct xfrm_policy *xp,
1752                                        const struct flowi_common *flic);
1753 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1754 void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic);
1755
1756 #else   /* CONFIG_SECURITY_NETWORK_XFRM */
1757
1758 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1759                                              struct xfrm_user_sec_ctx *sec_ctx,
1760                                              gfp_t gfp)
1761 {
1762         return 0;
1763 }
1764
1765 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1766 {
1767         return 0;
1768 }
1769
1770 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1771 {
1772 }
1773
1774 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1775 {
1776         return 0;
1777 }
1778
1779 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1780                                         struct xfrm_user_sec_ctx *sec_ctx)
1781 {
1782         return 0;
1783 }
1784
1785 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1786                                         struct xfrm_sec_ctx *polsec, u32 secid)
1787 {
1788         return 0;
1789 }
1790
1791 static inline void security_xfrm_state_free(struct xfrm_state *x)
1792 {
1793 }
1794
1795 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1796 {
1797         return 0;
1798 }
1799
1800 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
1801 {
1802         return 0;
1803 }
1804
1805 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1806                                                      struct xfrm_policy *xp,
1807                                                      const struct flowi_common *flic)
1808 {
1809         return 1;
1810 }
1811
1812 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1813 {
1814         return 0;
1815 }
1816
1817 static inline void security_skb_classify_flow(struct sk_buff *skb,
1818                                               struct flowi_common *flic)
1819 {
1820 }
1821
1822 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1823
1824 #ifdef CONFIG_SECURITY_PATH
1825 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1826 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1827 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1828 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1829                         unsigned int dev);
1830 int security_path_truncate(const struct path *path);
1831 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1832                           const char *old_name);
1833 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1834                        struct dentry *new_dentry);
1835 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1836                          const struct path *new_dir, struct dentry *new_dentry,
1837                          unsigned int flags);
1838 int security_path_chmod(const struct path *path, umode_t mode);
1839 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1840 int security_path_chroot(const struct path *path);
1841 #else   /* CONFIG_SECURITY_PATH */
1842 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1843 {
1844         return 0;
1845 }
1846
1847 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1848                                       umode_t mode)
1849 {
1850         return 0;
1851 }
1852
1853 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1854 {
1855         return 0;
1856 }
1857
1858 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1859                                       umode_t mode, unsigned int dev)
1860 {
1861         return 0;
1862 }
1863
1864 static inline int security_path_truncate(const struct path *path)
1865 {
1866         return 0;
1867 }
1868
1869 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1870                                         const char *old_name)
1871 {
1872         return 0;
1873 }
1874
1875 static inline int security_path_link(struct dentry *old_dentry,
1876                                      const struct path *new_dir,
1877                                      struct dentry *new_dentry)
1878 {
1879         return 0;
1880 }
1881
1882 static inline int security_path_rename(const struct path *old_dir,
1883                                        struct dentry *old_dentry,
1884                                        const struct path *new_dir,
1885                                        struct dentry *new_dentry,
1886                                        unsigned int flags)
1887 {
1888         return 0;
1889 }
1890
1891 static inline int security_path_chmod(const struct path *path, umode_t mode)
1892 {
1893         return 0;
1894 }
1895
1896 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1897 {
1898         return 0;
1899 }
1900
1901 static inline int security_path_chroot(const struct path *path)
1902 {
1903         return 0;
1904 }
1905 #endif  /* CONFIG_SECURITY_PATH */
1906
1907 #ifdef CONFIG_KEYS
1908 #ifdef CONFIG_SECURITY
1909
1910 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1911 void security_key_free(struct key *key);
1912 int security_key_permission(key_ref_t key_ref, const struct cred *cred,
1913                             enum key_need_perm need_perm);
1914 int security_key_getsecurity(struct key *key, char **_buffer);
1915
1916 #else
1917
1918 static inline int security_key_alloc(struct key *key,
1919                                      const struct cred *cred,
1920                                      unsigned long flags)
1921 {
1922         return 0;
1923 }
1924
1925 static inline void security_key_free(struct key *key)
1926 {
1927 }
1928
1929 static inline int security_key_permission(key_ref_t key_ref,
1930                                           const struct cred *cred,
1931                                           enum key_need_perm need_perm)
1932 {
1933         return 0;
1934 }
1935
1936 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1937 {
1938         *_buffer = NULL;
1939         return 0;
1940 }
1941
1942 #endif
1943 #endif /* CONFIG_KEYS */
1944
1945 #ifdef CONFIG_AUDIT
1946 #ifdef CONFIG_SECURITY
1947 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1948 int security_audit_rule_known(struct audit_krule *krule);
1949 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1950 void security_audit_rule_free(void *lsmrule);
1951
1952 #else
1953
1954 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1955                                            void **lsmrule)
1956 {
1957         return 0;
1958 }
1959
1960 static inline int security_audit_rule_known(struct audit_krule *krule)
1961 {
1962         return 0;
1963 }
1964
1965 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1966                                             void *lsmrule)
1967 {
1968         return 0;
1969 }
1970
1971 static inline void security_audit_rule_free(void *lsmrule)
1972 { }
1973
1974 #endif /* CONFIG_SECURITY */
1975 #endif /* CONFIG_AUDIT */
1976
1977 #ifdef CONFIG_SECURITYFS
1978
1979 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1980                                              struct dentry *parent, void *data,
1981                                              const struct file_operations *fops);
1982 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1983 struct dentry *securityfs_create_symlink(const char *name,
1984                                          struct dentry *parent,
1985                                          const char *target,
1986                                          const struct inode_operations *iops);
1987 extern void securityfs_remove(struct dentry *dentry);
1988
1989 #else /* CONFIG_SECURITYFS */
1990
1991 static inline struct dentry *securityfs_create_dir(const char *name,
1992                                                    struct dentry *parent)
1993 {
1994         return ERR_PTR(-ENODEV);
1995 }
1996
1997 static inline struct dentry *securityfs_create_file(const char *name,
1998                                                     umode_t mode,
1999                                                     struct dentry *parent,
2000                                                     void *data,
2001                                                     const struct file_operations *fops)
2002 {
2003         return ERR_PTR(-ENODEV);
2004 }
2005
2006 static inline struct dentry *securityfs_create_symlink(const char *name,
2007                                         struct dentry *parent,
2008                                         const char *target,
2009                                         const struct inode_operations *iops)
2010 {
2011         return ERR_PTR(-ENODEV);
2012 }
2013
2014 static inline void securityfs_remove(struct dentry *dentry)
2015 {}
2016
2017 #endif
2018
2019 #ifdef CONFIG_BPF_SYSCALL
2020 union bpf_attr;
2021 struct bpf_map;
2022 struct bpf_prog;
2023 struct bpf_prog_aux;
2024 #ifdef CONFIG_SECURITY
2025 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
2026 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
2027 extern int security_bpf_prog(struct bpf_prog *prog);
2028 extern int security_bpf_map_alloc(struct bpf_map *map);
2029 extern void security_bpf_map_free(struct bpf_map *map);
2030 extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
2031 extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
2032 #else
2033 static inline int security_bpf(int cmd, union bpf_attr *attr,
2034                                              unsigned int size)
2035 {
2036         return 0;
2037 }
2038
2039 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
2040 {
2041         return 0;
2042 }
2043
2044 static inline int security_bpf_prog(struct bpf_prog *prog)
2045 {
2046         return 0;
2047 }
2048
2049 static inline int security_bpf_map_alloc(struct bpf_map *map)
2050 {
2051         return 0;
2052 }
2053
2054 static inline void security_bpf_map_free(struct bpf_map *map)
2055 { }
2056
2057 static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
2058 {
2059         return 0;
2060 }
2061
2062 static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
2063 { }
2064 #endif /* CONFIG_SECURITY */
2065 #endif /* CONFIG_BPF_SYSCALL */
2066
2067 #ifdef CONFIG_PERF_EVENTS
2068 struct perf_event_attr;
2069 struct perf_event;
2070
2071 #ifdef CONFIG_SECURITY
2072 extern int security_perf_event_open(struct perf_event_attr *attr, int type);
2073 extern int security_perf_event_alloc(struct perf_event *event);
2074 extern void security_perf_event_free(struct perf_event *event);
2075 extern int security_perf_event_read(struct perf_event *event);
2076 extern int security_perf_event_write(struct perf_event *event);
2077 #else
2078 static inline int security_perf_event_open(struct perf_event_attr *attr,
2079                                            int type)
2080 {
2081         return 0;
2082 }
2083
2084 static inline int security_perf_event_alloc(struct perf_event *event)
2085 {
2086         return 0;
2087 }
2088
2089 static inline void security_perf_event_free(struct perf_event *event)
2090 {
2091 }
2092
2093 static inline int security_perf_event_read(struct perf_event *event)
2094 {
2095         return 0;
2096 }
2097
2098 static inline int security_perf_event_write(struct perf_event *event)
2099 {
2100         return 0;
2101 }
2102 #endif /* CONFIG_SECURITY */
2103 #endif /* CONFIG_PERF_EVENTS */
2104
2105 #ifdef CONFIG_IO_URING
2106 #ifdef CONFIG_SECURITY
2107 extern int security_uring_override_creds(const struct cred *new);
2108 extern int security_uring_sqpoll(void);
2109 extern int security_uring_cmd(struct io_uring_cmd *ioucmd);
2110 #else
2111 static inline int security_uring_override_creds(const struct cred *new)
2112 {
2113         return 0;
2114 }
2115 static inline int security_uring_sqpoll(void)
2116 {
2117         return 0;
2118 }
2119 static inline int security_uring_cmd(struct io_uring_cmd *ioucmd)
2120 {
2121         return 0;
2122 }
2123 #endif /* CONFIG_SECURITY */
2124 #endif /* CONFIG_IO_URING */
2125
2126 #endif /* ! __LINUX_SECURITY_H */