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 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(const struct task_struct *target, kernel_cap_t *effective,
 149                       kernel_cap_t *inheritable, kernel_cap_t *permitted);
 150 extern int cap_capset(struct cred *new, const struct cred *old,
 151                       const kernel_cap_t *effective,
 152                       const kernel_cap_t *inheritable,
 153                       const kernel_cap_t *permitted);
 154 extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
 155 int cap_inode_setxattr(struct dentry *dentry, const char *name,
 156                        const void *value, size_t size, int flags);
 157 int cap_inode_removexattr(struct mnt_idmap *idmap,
 158                           struct dentry *dentry, const char *name);
 159 int cap_inode_need_killpriv(struct dentry *dentry);
 160 int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
 161 int cap_inode_getsecurity(struct mnt_idmap *idmap,
 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, const 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(const 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, const 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, const struct file *file);
 294 int security_bprm_check(struct linux_binprm *bprm);
 295 void security_bprm_committing_creds(const struct linux_binprm *bprm);
 296 void security_bprm_committed_creds(const struct linux_binprm *bprm);
 297 int security_fs_context_submount(struct fs_context *fc, struct super_block *reference);
 298 int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
 299 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
 300 int security_sb_alloc(struct super_block *sb);
 301 void security_sb_delete(struct super_block *sb);
 302 void security_sb_free(struct super_block *sb);
 303 void security_free_mnt_opts(void **mnt_opts);
 304 int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
 305 int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts);
 306 int security_sb_remount(struct super_block *sb, void *mnt_opts);
 307 int security_sb_kern_mount(const struct super_block *sb);
 308 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
 309 int security_sb_statfs(struct dentry *dentry);
 310 int security_sb_mount(const char *dev_name, const struct path *path,
 311                       const char *type, unsigned long flags, void *data);
 312 int security_sb_umount(struct vfsmount *mnt, int flags);
 313 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
 314 int security_sb_set_mnt_opts(struct super_block *sb,
 315                                 void *mnt_opts,
 316                                 unsigned long kern_flags,
 317                                 unsigned long *set_kern_flags);
 318 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 319                                 struct super_block *newsb,
 320                                 unsigned long kern_flags,
 321                                 unsigned long *set_kern_flags);
 322 int security_move_mount(const struct path *from_path, const struct path *to_path);
 323 int security_dentry_init_security(struct dentry *dentry, int mode,
 324                                   const struct qstr *name,
 325                                   const char **xattr_name, void **ctx,
 326                                   u32 *ctxlen);
 327 int security_dentry_create_files_as(struct dentry *dentry, int mode,
 328                                         struct qstr *name,
 329                                         const struct cred *old,
 330                                         struct cred *new);
 331 int security_path_notify(const struct path *path, u64 mask,
 332                                         unsigned int obj_type);
 333 int security_inode_alloc(struct inode *inode);
 334 void security_inode_free(struct inode *inode);
 335 int security_inode_init_security(struct inode *inode, struct inode *dir,
 336                                  const struct qstr *qstr,
 337                                  initxattrs initxattrs, void *fs_data);
 338 int security_inode_init_security_anon(struct inode *inode,
 339                                       const struct qstr *name,
 340                                       const struct inode *context_inode);
 341 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
 342 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 343                          struct dentry *new_dentry);
 344 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
 345 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 346                            const char *old_name);
 347 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 348 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
 349 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
 350 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 351                           struct inode *new_dir, struct dentry *new_dentry,
 352                           unsigned int flags);
 353 int security_inode_readlink(struct dentry *dentry);
 354 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
 355                                bool rcu);
 356 int security_inode_permission(struct inode *inode, int mask);
 357 int security_inode_setattr(struct mnt_idmap *idmap,
 358                            struct dentry *dentry, struct iattr *attr);
 359 int security_inode_getattr(const struct path *path);
 360 int security_inode_setxattr(struct mnt_idmap *idmap,
 361                             struct dentry *dentry, const char *name,
 362                             const void *value, size_t size, int flags);
 363 int security_inode_set_acl(struct mnt_idmap *idmap,
 364                            struct dentry *dentry, const char *acl_name,
 365                            struct posix_acl *kacl);
 366 int security_inode_get_acl(struct mnt_idmap *idmap,
 367                            struct dentry *dentry, const char *acl_name);
 368 int security_inode_remove_acl(struct mnt_idmap *idmap,
 369                               struct dentry *dentry, const char *acl_name);
 370 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 371                                   const void *value, size_t size, int flags);
 372 int security_inode_getxattr(struct dentry *dentry, const char *name);
 373 int security_inode_listxattr(struct dentry *dentry);
 374 int security_inode_removexattr(struct mnt_idmap *idmap,
 375                                struct dentry *dentry, const char *name);
 376 int security_inode_need_killpriv(struct dentry *dentry);
 377 int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
 378 int security_inode_getsecurity(struct mnt_idmap *idmap,
 379                                struct inode *inode, const char *name,
 380                                void **buffer, bool alloc);
 381 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
 382 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
 383 void security_inode_getsecid(struct inode *inode, u32 *secid);
 384 int security_inode_copy_up(struct dentry *src, struct cred **new);
 385 int security_inode_copy_up_xattr(const char *name);
 386 int security_kernfs_init_security(struct kernfs_node *kn_dir,
 387                                   struct kernfs_node *kn);
 388 int security_file_permission(struct file *file, int mask);
 389 int security_file_alloc(struct file *file);
 390 void security_file_free(struct file *file);
 391 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 392 int security_mmap_file(struct file *file, unsigned long prot,
 393                         unsigned long flags);
 394 int security_mmap_addr(unsigned long addr);
 395 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 396                            unsigned long prot);
 397 int security_file_lock(struct file *file, unsigned int cmd);
 398 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
 399 void security_file_set_fowner(struct file *file);
 400 int security_file_send_sigiotask(struct task_struct *tsk,
 401                                  struct fown_struct *fown, int sig);
 402 int security_file_receive(struct file *file);
 403 int security_file_open(struct file *file);
 404 int security_file_truncate(struct file *file);
 405 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
 406 void security_task_free(struct task_struct *task);
 407 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
 408 void security_cred_free(struct cred *cred);
 409 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
 410 void security_transfer_creds(struct cred *new, const struct cred *old);
 411 void security_cred_getsecid(const struct cred *c, u32 *secid);
 412 int security_kernel_act_as(struct cred *new, u32 secid);
 413 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
 414 int security_kernel_module_request(char *kmod_name);
 415 int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
 416 int security_kernel_post_load_data(char *buf, loff_t size,
 417                                    enum kernel_load_data_id id,
 418                                    char *description);
 419 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
 420                               bool contents);
 421 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
 422                                    enum kernel_read_file_id id);
 423 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 424                              int flags);
 425 int security_task_fix_setgid(struct cred *new, const struct cred *old,
 426                              int flags);
 427 int security_task_fix_setgroups(struct cred *new, const struct cred *old);
 428 int security_task_setpgid(struct task_struct *p, pid_t pgid);
 429 int security_task_getpgid(struct task_struct *p);
 430 int security_task_getsid(struct task_struct *p);
 431 void security_current_getsecid_subj(u32 *secid);
 432 void security_task_getsecid_obj(struct task_struct *p, u32 *secid);
 433 int security_task_setnice(struct task_struct *p, int nice);
 434 int security_task_setioprio(struct task_struct *p, int ioprio);
 435 int security_task_getioprio(struct task_struct *p);
 436 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
 437                           unsigned int flags);
 438 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 439                 struct rlimit *new_rlim);
 440 int security_task_setscheduler(struct task_struct *p);
 441 int security_task_getscheduler(struct task_struct *p);
 442 int security_task_movememory(struct task_struct *p);
 443 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
 444                         int sig, const struct cred *cred);
 445 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 446                         unsigned long arg4, unsigned long arg5);
 447 void security_task_to_inode(struct task_struct *p, struct inode *inode);
 448 int security_create_user_ns(const struct cred *cred);
 449 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
 450 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
 451 int security_msg_msg_alloc(struct msg_msg *msg);
 452 void security_msg_msg_free(struct msg_msg *msg);
 453 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
 454 void security_msg_queue_free(struct kern_ipc_perm *msq);
 455 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
 456 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
 457 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
 458                               struct msg_msg *msg, int msqflg);
 459 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
 460                               struct task_struct *target, long type, int mode);
 461 int security_shm_alloc(struct kern_ipc_perm *shp);
 462 void security_shm_free(struct kern_ipc_perm *shp);
 463 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
 464 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
 465 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
 466 int security_sem_alloc(struct kern_ipc_perm *sma);
 467 void security_sem_free(struct kern_ipc_perm *sma);
 468 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
 469 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
 470 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
 471                         unsigned nsops, int alter);
 472 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
 473 int security_getprocattr(struct task_struct *p, const char *lsm, const char *name,
 474                          char **value);
 475 int security_setprocattr(const char *lsm, const char *name, void *value,
 476                          size_t size);
 477 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
 478 int security_ismaclabel(const char *name);
 479 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
 480 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
 481 void security_release_secctx(char *secdata, u32 seclen);
 482 void security_inode_invalidate_secctx(struct inode *inode);
 483 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
 484 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
 485 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
 486 int security_locked_down(enum lockdown_reason what);
 487 #else /* CONFIG_SECURITY */
 488
 489 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
 490 {
 491         return 0;
 492 }
 493
 494 static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
 495 {
 496         return 0;
 497 }
 498
 499 static inline  int unregister_blocking_lsm_notifier(struct notifier_block *nb)
 500 {
 501         return 0;
 502 }
 503
 504 static inline void security_free_mnt_opts(void **mnt_opts)
 505 {
 506 }
 507
 508 /*
 509  * This is the default capabilities functionality.  Most of these functions
 510  * are just stubbed out, but a few must call the proper capable code.
 511  */
 512
 513 static inline int security_init(void)
 514 {
 515         return 0;
 516 }
 517
 518 static inline int early_security_init(void)
 519 {
 520         return 0;
 521 }
 522
 523 static inline int security_binder_set_context_mgr(const struct cred *mgr)
 524 {
 525         return 0;
 526 }
 527
 528 static inline int security_binder_transaction(const struct cred *from,
 529                                               const struct cred *to)
 530 {
 531         return 0;
 532 }
 533
 534 static inline int security_binder_transfer_binder(const struct cred *from,
 535                                                   const struct cred *to)
 536 {
 537         return 0;
 538 }
 539
 540 static inline int security_binder_transfer_file(const struct cred *from,
 541                                                 const struct cred *to,
 542                                                 const struct file *file)
 543 {
 544         return 0;
 545 }
 546
 547 static inline int security_ptrace_access_check(struct task_struct *child,
 548                                              unsigned int mode)
 549 {
 550         return cap_ptrace_access_check(child, mode);
 551 }
 552
 553 static inline int security_ptrace_traceme(struct task_struct *parent)
 554 {
 555         return cap_ptrace_traceme(parent);
 556 }
 557
 558 static inline int security_capget(const struct task_struct *target,
 559                                    kernel_cap_t *effective,
 560                                    kernel_cap_t *inheritable,
 561                                    kernel_cap_t *permitted)
 562 {
 563         return cap_capget(target, effective, inheritable, permitted);
 564 }
 565
 566 static inline int security_capset(struct cred *new,
 567                                    const struct cred *old,
 568                                    const kernel_cap_t *effective,
 569                                    const kernel_cap_t *inheritable,
 570                                    const kernel_cap_t *permitted)
 571 {
 572         return cap_capset(new, old, effective, inheritable, permitted);
 573 }
 574
 575 static inline int security_capable(const struct cred *cred,
 576                                    struct user_namespace *ns,
 577                                    int cap,
 578                                    unsigned int opts)
 579 {
 580         return cap_capable(cred, ns, cap, opts);
 581 }
 582
 583 static inline int security_quotactl(int cmds, int type, int id,
 584                                      const struct super_block *sb)
 585 {
 586         return 0;
 587 }
 588
 589 static inline int security_quota_on(struct dentry *dentry)
 590 {
 591         return 0;
 592 }
 593
 594 static inline int security_syslog(int type)
 595 {
 596         return 0;
 597 }
 598
 599 static inline int security_settime64(const struct timespec64 *ts,
 600                                      const struct timezone *tz)
 601 {
 602         return cap_settime(ts, tz);
 603 }
 604
 605 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 606 {
 607         return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
 608 }
 609
 610 static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
 611 {
 612         return 0;
 613 }
 614
 615 static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
 616                                                 const struct file *file)
 617 {
 618         return cap_bprm_creds_from_file(bprm, file);
 619 }
 620
 621 static inline int security_bprm_check(struct linux_binprm *bprm)
 622 {
 623         return 0;
 624 }
 625
 626 static inline void security_bprm_committing_creds(const struct linux_binprm *bprm)
 627 {
 628 }
 629
 630 static inline void security_bprm_committed_creds(const struct linux_binprm *bprm)
 631 {
 632 }
 633
 634 static inline int security_fs_context_submount(struct fs_context *fc,
 635                                            struct super_block *reference)
 636 {
 637         return 0;
 638 }
 639 static inline int security_fs_context_dup(struct fs_context *fc,
 640                                           struct fs_context *src_fc)
 641 {
 642         return 0;
 643 }
 644 static inline int security_fs_context_parse_param(struct fs_context *fc,
 645                                                   struct fs_parameter *param)
 646 {
 647         return -ENOPARAM;
 648 }
 649
 650 static inline int security_sb_alloc(struct super_block *sb)
 651 {
 652         return 0;
 653 }
 654
 655 static inline void security_sb_delete(struct super_block *sb)
 656 { }
 657
 658 static inline void security_sb_free(struct super_block *sb)
 659 { }
 660
 661 static inline int security_sb_eat_lsm_opts(char *options,
 662                                            void **mnt_opts)
 663 {
 664         return 0;
 665 }
 666
 667 static inline int security_sb_remount(struct super_block *sb,
 668                                       void *mnt_opts)
 669 {
 670         return 0;
 671 }
 672
 673 static inline int security_sb_mnt_opts_compat(struct super_block *sb,
 674                                               void *mnt_opts)
 675 {
 676         return 0;
 677 }
 678
 679
 680 static inline int security_sb_kern_mount(struct super_block *sb)
 681 {
 682         return 0;
 683 }
 684
 685 static inline int security_sb_show_options(struct seq_file *m,
 686                                            struct super_block *sb)
 687 {
 688         return 0;
 689 }
 690
 691 static inline int security_sb_statfs(struct dentry *dentry)
 692 {
 693         return 0;
 694 }
 695
 696 static inline int security_sb_mount(const char *dev_name, const struct path *path,
 697                                     const char *type, unsigned long flags,
 698                                     void *data)
 699 {
 700         return 0;
 701 }
 702
 703 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
 704 {
 705         return 0;
 706 }
 707
 708 static inline int security_sb_pivotroot(const struct path *old_path,
 709                                         const struct path *new_path)
 710 {
 711         return 0;
 712 }
 713
 714 static inline int security_sb_set_mnt_opts(struct super_block *sb,
 715                                            void *mnt_opts,
 716                                            unsigned long kern_flags,
 717                                            unsigned long *set_kern_flags)
 718 {
 719         return 0;
 720 }
 721
 722 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 723                                               struct super_block *newsb,
 724                                               unsigned long kern_flags,
 725                                               unsigned long *set_kern_flags)
 726 {
 727         return 0;
 728 }
 729
 730 static inline int security_move_mount(const struct path *from_path,
 731                                       const struct path *to_path)
 732 {
 733         return 0;
 734 }
 735
 736 static inline int security_path_notify(const struct path *path, u64 mask,
 737                                 unsigned int obj_type)
 738 {
 739         return 0;
 740 }
 741
 742 static inline int security_inode_alloc(struct inode *inode)
 743 {
 744         return 0;
 745 }
 746
 747 static inline void security_inode_free(struct inode *inode)
 748 { }
 749
 750 static inline int security_dentry_init_security(struct dentry *dentry,
 751                                                  int mode,
 752                                                  const struct qstr *name,
 753                                                  const char **xattr_name,
 754                                                  void **ctx,
 755                                                  u32 *ctxlen)
 756 {
 757         return -EOPNOTSUPP;
 758 }
 759
 760 static inline int security_dentry_create_files_as(struct dentry *dentry,
 761                                                   int mode, struct qstr *name,
 762                                                   const struct cred *old,
 763                                                   struct cred *new)
 764 {
 765         return 0;
 766 }
 767
 768
 769 static inline int security_inode_init_security(struct inode *inode,
 770                                                 struct inode *dir,
 771                                                 const struct qstr *qstr,
 772                                                 const initxattrs xattrs,
 773                                                 void *fs_data)
 774 {
 775         return 0;
 776 }
 777
 778 static inline int security_inode_init_security_anon(struct inode *inode,
 779                                                     const struct qstr *name,
 780                                                     const struct inode *context_inode)
 781 {
 782         return 0;
 783 }
 784
 785 static inline int security_inode_create(struct inode *dir,
 786                                          struct dentry *dentry,
 787                                          umode_t mode)
 788 {
 789         return 0;
 790 }
 791
 792 static inline int security_inode_link(struct dentry *old_dentry,
 793                                        struct inode *dir,
 794                                        struct dentry *new_dentry)
 795 {
 796         return 0;
 797 }
 798
 799 static inline int security_inode_unlink(struct inode *dir,
 800                                          struct dentry *dentry)
 801 {
 802         return 0;
 803 }
 804
 805 static inline int security_inode_symlink(struct inode *dir,
 806                                           struct dentry *dentry,
 807                                           const char *old_name)
 808 {
 809         return 0;
 810 }
 811
 812 static inline int security_inode_mkdir(struct inode *dir,
 813                                         struct dentry *dentry,
 814                                         int mode)
 815 {
 816         return 0;
 817 }
 818
 819 static inline int security_inode_rmdir(struct inode *dir,
 820                                         struct dentry *dentry)
 821 {
 822         return 0;
 823 }
 824
 825 static inline int security_inode_mknod(struct inode *dir,
 826                                         struct dentry *dentry,
 827                                         int mode, dev_t dev)
 828 {
 829         return 0;
 830 }
 831
 832 static inline int security_inode_rename(struct inode *old_dir,
 833                                          struct dentry *old_dentry,
 834                                          struct inode *new_dir,
 835                                          struct dentry *new_dentry,
 836                                          unsigned int flags)
 837 {
 838         return 0;
 839 }
 840
 841 static inline int security_inode_readlink(struct dentry *dentry)
 842 {
 843         return 0;
 844 }
 845
 846 static inline int security_inode_follow_link(struct dentry *dentry,
 847                                              struct inode *inode,
 848                                              bool rcu)
 849 {
 850         return 0;
 851 }
 852
 853 static inline int security_inode_permission(struct inode *inode, int mask)
 854 {
 855         return 0;
 856 }
 857
 858 static inline int security_inode_setattr(struct mnt_idmap *idmap,
 859                                          struct dentry *dentry,
 860                                          struct iattr *attr)
 861 {
 862         return 0;
 863 }
 864
 865 static inline int security_inode_getattr(const struct path *path)
 866 {
 867         return 0;
 868 }
 869
 870 static inline int security_inode_setxattr(struct mnt_idmap *idmap,
 871                 struct dentry *dentry, const char *name, const void *value,
 872                 size_t size, int flags)
 873 {
 874         return cap_inode_setxattr(dentry, name, value, size, flags);
 875 }
 876
 877 static inline int security_inode_set_acl(struct mnt_idmap *idmap,
 878                                          struct dentry *dentry,
 879                                          const char *acl_name,
 880                                          struct posix_acl *kacl)
 881 {
 882         return 0;
 883 }
 884
 885 static inline int security_inode_get_acl(struct mnt_idmap *idmap,
 886                                          struct dentry *dentry,
 887                                          const char *acl_name)
 888 {
 889         return 0;
 890 }
 891
 892 static inline int security_inode_remove_acl(struct mnt_idmap *idmap,
 893                                             struct dentry *dentry,
 894                                             const char *acl_name)
 895 {
 896         return 0;
 897 }
 898
 899 static inline void security_inode_post_setxattr(struct dentry *dentry,
 900                 const char *name, const void *value, size_t size, int flags)
 901 { }
 902
 903 static inline int security_inode_getxattr(struct dentry *dentry,
 904                         const char *name)
 905 {
 906         return 0;
 907 }
 908
 909 static inline int security_inode_listxattr(struct dentry *dentry)
 910 {
 911         return 0;
 912 }
 913
 914 static inline int security_inode_removexattr(struct mnt_idmap *idmap,
 915                                              struct dentry *dentry,
 916                                              const char *name)
 917 {
 918         return cap_inode_removexattr(idmap, dentry, name);
 919 }
 920
 921 static inline int security_inode_need_killpriv(struct dentry *dentry)
 922 {
 923         return cap_inode_need_killpriv(dentry);
 924 }
 925
 926 static inline int security_inode_killpriv(struct mnt_idmap *idmap,
 927                                           struct dentry *dentry)
 928 {
 929         return cap_inode_killpriv(idmap, dentry);
 930 }
 931
 932 static inline int security_inode_getsecurity(struct mnt_idmap *idmap,
 933                                              struct inode *inode,
 934                                              const char *name, void **buffer,
 935                                              bool alloc)
 936 {
 937         return cap_inode_getsecurity(idmap, inode, name, buffer, alloc);
 938 }
 939
 940 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 941 {
 942         return -EOPNOTSUPP;
 943 }
 944
 945 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 946 {
 947         return 0;
 948 }
 949
 950 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
 951 {
 952         *secid = 0;
 953 }
 954
 955 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
 956 {
 957         return 0;
 958 }
 959
 960 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
 961                                                 struct kernfs_node *kn)
 962 {
 963         return 0;
 964 }
 965
 966 static inline int security_inode_copy_up_xattr(const char *name)
 967 {
 968         return -EOPNOTSUPP;
 969 }
 970
 971 static inline int security_file_permission(struct file *file, int mask)
 972 {
 973         return 0;
 974 }
 975
 976 static inline int security_file_alloc(struct file *file)
 977 {
 978         return 0;
 979 }
 980
 981 static inline void security_file_free(struct file *file)
 982 { }
 983
 984 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
 985                                       unsigned long arg)
 986 {
 987         return 0;
 988 }
 989
 990 static inline int security_mmap_file(struct file *file, unsigned long prot,
 991                                      unsigned long flags)
 992 {
 993         return 0;
 994 }
 995
 996 static inline int security_mmap_addr(unsigned long addr)
 997 {
 998         return cap_mmap_addr(addr);
 999 }
1000
1001 static inline int security_file_mprotect(struct vm_area_struct *vma,
1002                                          unsigned long reqprot,
1003                                          unsigned long prot)
1004 {
1005         return 0;
1006 }
1007
1008 static inline int security_file_lock(struct file *file, unsigned int cmd)
1009 {
1010         return 0;
1011 }
1012
1013 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
1014                                       unsigned long arg)
1015 {
1016         return 0;
1017 }
1018
1019 static inline void security_file_set_fowner(struct file *file)
1020 {
1021         return;
1022 }
1023
1024 static inline int security_file_send_sigiotask(struct task_struct *tsk,
1025                                                struct fown_struct *fown,
1026                                                int sig)
1027 {
1028         return 0;
1029 }
1030
1031 static inline int security_file_receive(struct file *file)
1032 {
1033         return 0;
1034 }
1035
1036 static inline int security_file_open(struct file *file)
1037 {
1038         return 0;
1039 }
1040
1041 static inline int security_file_truncate(struct file *file)
1042 {
1043         return 0;
1044 }
1045
1046 static inline int security_task_alloc(struct task_struct *task,
1047                                       unsigned long clone_flags)
1048 {
1049         return 0;
1050 }
1051
1052 static inline void security_task_free(struct task_struct *task)
1053 { }
1054
1055 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
1056 {
1057         return 0;
1058 }
1059
1060 static inline void security_cred_free(struct cred *cred)
1061 { }
1062
1063 static inline int security_prepare_creds(struct cred *new,
1064                                          const struct cred *old,
1065                                          gfp_t gfp)
1066 {
1067         return 0;
1068 }
1069
1070 static inline void security_transfer_creds(struct cred *new,
1071                                            const struct cred *old)
1072 {
1073 }
1074
1075 static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
1076 {
1077         *secid = 0;
1078 }
1079
1080 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1081 {
1082         return 0;
1083 }
1084
1085 static inline int security_kernel_create_files_as(struct cred *cred,
1086                                                   struct inode *inode)
1087 {
1088         return 0;
1089 }
1090
1091 static inline int security_kernel_module_request(char *kmod_name)
1092 {
1093         return 0;
1094 }
1095
1096 static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents)
1097 {
1098         return 0;
1099 }
1100
1101 static inline int security_kernel_post_load_data(char *buf, loff_t size,
1102                                                  enum kernel_load_data_id id,
1103                                                  char *description)
1104 {
1105         return 0;
1106 }
1107
1108 static inline int security_kernel_read_file(struct file *file,
1109                                             enum kernel_read_file_id id,
1110                                             bool contents)
1111 {
1112         return 0;
1113 }
1114
1115 static inline int security_kernel_post_read_file(struct file *file,
1116                                                  char *buf, loff_t size,
1117                                                  enum kernel_read_file_id id)
1118 {
1119         return 0;
1120 }
1121
1122 static inline int security_task_fix_setuid(struct cred *new,
1123                                            const struct cred *old,
1124                                            int flags)
1125 {
1126         return cap_task_fix_setuid(new, old, flags);
1127 }
1128
1129 static inline int security_task_fix_setgid(struct cred *new,
1130                                            const struct cred *old,
1131                                            int flags)
1132 {
1133         return 0;
1134 }
1135
1136 static inline int security_task_fix_setgroups(struct cred *new,
1137                                            const struct cred *old)
1138 {
1139         return 0;
1140 }
1141
1142 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1143 {
1144         return 0;
1145 }
1146
1147 static inline int security_task_getpgid(struct task_struct *p)
1148 {
1149         return 0;
1150 }
1151
1152 static inline int security_task_getsid(struct task_struct *p)
1153 {
1154         return 0;
1155 }
1156
1157 static inline void security_current_getsecid_subj(u32 *secid)
1158 {
1159         *secid = 0;
1160 }
1161
1162 static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid)
1163 {
1164         *secid = 0;
1165 }
1166
1167 static inline int security_task_setnice(struct task_struct *p, int nice)
1168 {
1169         return cap_task_setnice(p, nice);
1170 }
1171
1172 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1173 {
1174         return cap_task_setioprio(p, ioprio);
1175 }
1176
1177 static inline int security_task_getioprio(struct task_struct *p)
1178 {
1179         return 0;
1180 }
1181
1182 static inline int security_task_prlimit(const struct cred *cred,
1183                                         const struct cred *tcred,
1184                                         unsigned int flags)
1185 {
1186         return 0;
1187 }
1188
1189 static inline int security_task_setrlimit(struct task_struct *p,
1190                                           unsigned int resource,
1191                                           struct rlimit *new_rlim)
1192 {
1193         return 0;
1194 }
1195
1196 static inline int security_task_setscheduler(struct task_struct *p)
1197 {
1198         return cap_task_setscheduler(p);
1199 }
1200
1201 static inline int security_task_getscheduler(struct task_struct *p)
1202 {
1203         return 0;
1204 }
1205
1206 static inline int security_task_movememory(struct task_struct *p)
1207 {
1208         return 0;
1209 }
1210
1211 static inline int security_task_kill(struct task_struct *p,
1212                                      struct kernel_siginfo *info, int sig,
1213                                      const struct cred *cred)
1214 {
1215         return 0;
1216 }
1217
1218 static inline int security_task_prctl(int option, unsigned long arg2,
1219                                       unsigned long arg3,
1220                                       unsigned long arg4,
1221                                       unsigned long arg5)
1222 {
1223         return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1224 }
1225
1226 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1227 { }
1228
1229 static inline int security_create_user_ns(const struct cred *cred)
1230 {
1231         return 0;
1232 }
1233
1234 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1235                                           short flag)
1236 {
1237         return 0;
1238 }
1239
1240 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1241 {
1242         *secid = 0;
1243 }
1244
1245 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1246 {
1247         return 0;
1248 }
1249
1250 static inline void security_msg_msg_free(struct msg_msg *msg)
1251 { }
1252
1253 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1254 {
1255         return 0;
1256 }
1257
1258 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1259 { }
1260
1261 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1262                                                int msqflg)
1263 {
1264         return 0;
1265 }
1266
1267 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1268 {
1269         return 0;
1270 }
1271
1272 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1273                                             struct msg_msg *msg, int msqflg)
1274 {
1275         return 0;
1276 }
1277
1278 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1279                                             struct msg_msg *msg,
1280                                             struct task_struct *target,
1281                                             long type, int mode)
1282 {
1283         return 0;
1284 }
1285
1286 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1287 {
1288         return 0;
1289 }
1290
1291 static inline void security_shm_free(struct kern_ipc_perm *shp)
1292 { }
1293
1294 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1295                                          int shmflg)
1296 {
1297         return 0;
1298 }
1299
1300 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1301 {
1302         return 0;
1303 }
1304
1305 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1306                                      char __user *shmaddr, int shmflg)
1307 {
1308         return 0;
1309 }
1310
1311 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1312 {
1313         return 0;
1314 }
1315
1316 static inline void security_sem_free(struct kern_ipc_perm *sma)
1317 { }
1318
1319 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1320 {
1321         return 0;
1322 }
1323
1324 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1325 {
1326         return 0;
1327 }
1328
1329 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1330                                      struct sembuf *sops, unsigned nsops,
1331                                      int alter)
1332 {
1333         return 0;
1334 }
1335
1336 static inline void security_d_instantiate(struct dentry *dentry,
1337                                           struct inode *inode)
1338 { }
1339
1340 static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1341                                        const char *name, char **value)
1342 {
1343         return -EINVAL;
1344 }
1345
1346 static inline int security_setprocattr(const char *lsm, char *name,
1347                                        void *value, size_t size)
1348 {
1349         return -EINVAL;
1350 }
1351
1352 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1353 {
1354         return 0;
1355 }
1356
1357 static inline int security_ismaclabel(const char *name)
1358 {
1359         return 0;
1360 }
1361
1362 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1363 {
1364         return -EOPNOTSUPP;
1365 }
1366
1367 static inline int security_secctx_to_secid(const char *secdata,
1368                                            u32 seclen,
1369                                            u32 *secid)
1370 {
1371         return -EOPNOTSUPP;
1372 }
1373
1374 static inline void security_release_secctx(char *secdata, u32 seclen)
1375 {
1376 }
1377
1378 static inline void security_inode_invalidate_secctx(struct inode *inode)
1379 {
1380 }
1381
1382 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1383 {
1384         return -EOPNOTSUPP;
1385 }
1386 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1387 {
1388         return -EOPNOTSUPP;
1389 }
1390 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1391 {
1392         return -EOPNOTSUPP;
1393 }
1394 static inline int security_locked_down(enum lockdown_reason what)
1395 {
1396         return 0;
1397 }
1398 #endif  /* CONFIG_SECURITY */
1399
1400 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1401 int security_post_notification(const struct cred *w_cred,
1402                                const struct cred *cred,
1403                                struct watch_notification *n);
1404 #else
1405 static inline int security_post_notification(const struct cred *w_cred,
1406                                              const struct cred *cred,
1407                                              struct watch_notification *n)
1408 {
1409         return 0;
1410 }
1411 #endif
1412
1413 #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1414 int security_watch_key(struct key *key);
1415 #else
1416 static inline int security_watch_key(struct key *key)
1417 {
1418         return 0;
1419 }
1420 #endif
1421
1422 #ifdef CONFIG_SECURITY_NETWORK
1423
1424 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1425 int security_unix_may_send(struct socket *sock,  struct socket *other);
1426 int security_socket_create(int family, int type, int protocol, int kern);
1427 int security_socket_post_create(struct socket *sock, int family,
1428                                 int type, int protocol, int kern);
1429 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1430 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1431 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1432 int security_socket_listen(struct socket *sock, int backlog);
1433 int security_socket_accept(struct socket *sock, struct socket *newsock);
1434 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1435 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1436                             int size, int flags);
1437 int security_socket_getsockname(struct socket *sock);
1438 int security_socket_getpeername(struct socket *sock);
1439 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1440 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1441 int security_socket_shutdown(struct socket *sock, int how);
1442 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1443 int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval,
1444                                       sockptr_t optlen, unsigned int len);
1445 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1446 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1447 void security_sk_free(struct sock *sk);
1448 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1449 void security_sk_classify_flow(const struct sock *sk,
1450                                struct flowi_common *flic);
1451 void security_req_classify_flow(const struct request_sock *req,
1452                                 struct flowi_common *flic);
1453 void security_sock_graft(struct sock*sk, struct socket *parent);
1454 int security_inet_conn_request(const struct sock *sk,
1455                         struct sk_buff *skb, struct request_sock *req);
1456 void security_inet_csk_clone(struct sock *newsk,
1457                         const struct request_sock *req);
1458 void security_inet_conn_established(struct sock *sk,
1459                         struct sk_buff *skb);
1460 int security_secmark_relabel_packet(u32 secid);
1461 void security_secmark_refcount_inc(void);
1462 void security_secmark_refcount_dec(void);
1463 int security_tun_dev_alloc_security(void **security);
1464 void security_tun_dev_free_security(void *security);
1465 int security_tun_dev_create(void);
1466 int security_tun_dev_attach_queue(void *security);
1467 int security_tun_dev_attach(struct sock *sk, void *security);
1468 int security_tun_dev_open(void *security);
1469 int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb);
1470 int security_sctp_bind_connect(struct sock *sk, int optname,
1471                                struct sockaddr *address, int addrlen);
1472 void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
1473                             struct sock *newsk);
1474 int security_sctp_assoc_established(struct sctp_association *asoc,
1475                                     struct sk_buff *skb);
1476 int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk);
1477
1478 #else   /* CONFIG_SECURITY_NETWORK */
1479 static inline int security_unix_stream_connect(struct sock *sock,
1480                                                struct sock *other,
1481                                                struct sock *newsk)
1482 {
1483         return 0;
1484 }
1485
1486 static inline int security_unix_may_send(struct socket *sock,
1487                                          struct socket *other)
1488 {
1489         return 0;
1490 }
1491
1492 static inline int security_socket_create(int family, int type,
1493                                          int protocol, int kern)
1494 {
1495         return 0;
1496 }
1497
1498 static inline int security_socket_post_create(struct socket *sock,
1499                                               int family,
1500                                               int type,
1501                                               int protocol, int kern)
1502 {
1503         return 0;
1504 }
1505
1506 static inline int security_socket_socketpair(struct socket *socka,
1507                                              struct socket *sockb)
1508 {
1509         return 0;
1510 }
1511
1512 static inline int security_socket_bind(struct socket *sock,
1513                                        struct sockaddr *address,
1514                                        int addrlen)
1515 {
1516         return 0;
1517 }
1518
1519 static inline int security_socket_connect(struct socket *sock,
1520                                           struct sockaddr *address,
1521                                           int addrlen)
1522 {
1523         return 0;
1524 }
1525
1526 static inline int security_socket_listen(struct socket *sock, int backlog)
1527 {
1528         return 0;
1529 }
1530
1531 static inline int security_socket_accept(struct socket *sock,
1532                                          struct socket *newsock)
1533 {
1534         return 0;
1535 }
1536
1537 static inline int security_socket_sendmsg(struct socket *sock,
1538                                           struct msghdr *msg, int size)
1539 {
1540         return 0;
1541 }
1542
1543 static inline int security_socket_recvmsg(struct socket *sock,
1544                                           struct msghdr *msg, int size,
1545                                           int flags)
1546 {
1547         return 0;
1548 }
1549
1550 static inline int security_socket_getsockname(struct socket *sock)
1551 {
1552         return 0;
1553 }
1554
1555 static inline int security_socket_getpeername(struct socket *sock)
1556 {
1557         return 0;
1558 }
1559
1560 static inline int security_socket_getsockopt(struct socket *sock,
1561                                              int level, int optname)
1562 {
1563         return 0;
1564 }
1565
1566 static inline int security_socket_setsockopt(struct socket *sock,
1567                                              int level, int optname)
1568 {
1569         return 0;
1570 }
1571
1572 static inline int security_socket_shutdown(struct socket *sock, int how)
1573 {
1574         return 0;
1575 }
1576 static inline int security_sock_rcv_skb(struct sock *sk,
1577                                         struct sk_buff *skb)
1578 {
1579         return 0;
1580 }
1581
1582 static inline int security_socket_getpeersec_stream(struct socket *sock,
1583                                                     sockptr_t optval,
1584                                                     sockptr_t optlen,
1585                                                     unsigned int len)
1586 {
1587         return -ENOPROTOOPT;
1588 }
1589
1590 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1591 {
1592         return -ENOPROTOOPT;
1593 }
1594
1595 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1596 {
1597         return 0;
1598 }
1599
1600 static inline void security_sk_free(struct sock *sk)
1601 {
1602 }
1603
1604 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1605 {
1606 }
1607
1608 static inline void security_sk_classify_flow(const struct sock *sk,
1609                                              struct flowi_common *flic)
1610 {
1611 }
1612
1613 static inline void security_req_classify_flow(const struct request_sock *req,
1614                                               struct flowi_common *flic)
1615 {
1616 }
1617
1618 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1619 {
1620 }
1621
1622 static inline int security_inet_conn_request(const struct sock *sk,
1623                         struct sk_buff *skb, struct request_sock *req)
1624 {
1625         return 0;
1626 }
1627
1628 static inline void security_inet_csk_clone(struct sock *newsk,
1629                         const struct request_sock *req)
1630 {
1631 }
1632
1633 static inline void security_inet_conn_established(struct sock *sk,
1634                         struct sk_buff *skb)
1635 {
1636 }
1637
1638 static inline int security_secmark_relabel_packet(u32 secid)
1639 {
1640         return 0;
1641 }
1642
1643 static inline void security_secmark_refcount_inc(void)
1644 {
1645 }
1646
1647 static inline void security_secmark_refcount_dec(void)
1648 {
1649 }
1650
1651 static inline int security_tun_dev_alloc_security(void **security)
1652 {
1653         return 0;
1654 }
1655
1656 static inline void security_tun_dev_free_security(void *security)
1657 {
1658 }
1659
1660 static inline int security_tun_dev_create(void)
1661 {
1662         return 0;
1663 }
1664
1665 static inline int security_tun_dev_attach_queue(void *security)
1666 {
1667         return 0;
1668 }
1669
1670 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1671 {
1672         return 0;
1673 }
1674
1675 static inline int security_tun_dev_open(void *security)
1676 {
1677         return 0;
1678 }
1679
1680 static inline int security_sctp_assoc_request(struct sctp_association *asoc,
1681                                               struct sk_buff *skb)
1682 {
1683         return 0;
1684 }
1685
1686 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1687                                              struct sockaddr *address,
1688                                              int addrlen)
1689 {
1690         return 0;
1691 }
1692
1693 static inline void security_sctp_sk_clone(struct sctp_association *asoc,
1694                                           struct sock *sk,
1695                                           struct sock *newsk)
1696 {
1697 }
1698
1699 static inline int security_sctp_assoc_established(struct sctp_association *asoc,
1700                                                   struct sk_buff *skb)
1701 {
1702         return 0;
1703 }
1704
1705 static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk)
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 */