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 #include <uapi/linux/lsm.h>
  36
  37 struct linux_binprm;
  38 struct cred;
  39 struct rlimit;
  40 struct kernel_siginfo;
  41 struct sembuf;
  42 struct kern_ipc_perm;
  43 struct audit_context;
  44 struct super_block;
  45 struct inode;
  46 struct dentry;
  47 struct file;
  48 struct vfsmount;
  49 struct path;
  50 struct qstr;
  51 struct iattr;
  52 struct fown_struct;
  53 struct file_operations;
  54 struct msg_msg;
  55 struct xattr;
  56 struct kernfs_node;
  57 struct xfrm_sec_ctx;
  58 struct mm_struct;
  59 struct fs_context;
  60 struct fs_parameter;
  61 enum fs_value_type;
  62 struct watch;
  63 struct watch_notification;
  64 struct lsm_ctx;
  65
  66 /* Default (no) options for the capable function */
  67 #define CAP_OPT_NONE 0x0
  68 /* If capable should audit the security request */
  69 #define CAP_OPT_NOAUDIT BIT(1)
  70 /* If capable is being called by a setid function */
  71 #define CAP_OPT_INSETID BIT(2)
  72
  73 /* LSM Agnostic defines for security_sb_set_mnt_opts() flags */
  74 #define SECURITY_LSM_NATIVE_LABELS      1
  75
  76 struct ctl_table;
  77 struct audit_krule;
  78 struct user_namespace;
  79 struct timezone;
  80
  81 enum lsm_event {
  82         LSM_POLICY_CHANGE,
  83 };
  84
  85 /*
  86  * These are reasons that can be passed to the security_locked_down()
  87  * LSM hook. Lockdown reasons that protect kernel integrity (ie, the
  88  * ability for userland to modify kernel code) are placed before
  89  * LOCKDOWN_INTEGRITY_MAX.  Lockdown reasons that protect kernel
  90  * confidentiality (ie, the ability for userland to extract
  91  * information from the running kernel that would otherwise be
  92  * restricted) are placed before LOCKDOWN_CONFIDENTIALITY_MAX.
  93  *
  94  * LSM authors should note that the semantics of any given lockdown
  95  * reason are not guaranteed to be stable - the same reason may block
  96  * one set of features in one kernel release, and a slightly different
  97  * set of features in a later kernel release. LSMs that seek to expose
  98  * lockdown policy at any level of granularity other than "none",
  99  * "integrity" or "confidentiality" are responsible for either
 100  * ensuring that they expose a consistent level of functionality to
 101  * userland, or ensuring that userland is aware that this is
 102  * potentially a moving target. It is easy to misuse this information
 103  * in a way that could break userspace. Please be careful not to do
 104  * so.
 105  *
 106  * If you add to this, remember to extend lockdown_reasons in
 107  * security/lockdown/lockdown.c.
 108  */
 109 enum lockdown_reason {
 110         LOCKDOWN_NONE,
 111         LOCKDOWN_MODULE_SIGNATURE,
 112         LOCKDOWN_DEV_MEM,
 113         LOCKDOWN_EFI_TEST,
 114         LOCKDOWN_KEXEC,
 115         LOCKDOWN_HIBERNATION,
 116         LOCKDOWN_PCI_ACCESS,
 117         LOCKDOWN_IOPORT,
 118         LOCKDOWN_MSR,
 119         LOCKDOWN_ACPI_TABLES,
 120         LOCKDOWN_DEVICE_TREE,
 121         LOCKDOWN_PCMCIA_CIS,
 122         LOCKDOWN_TIOCSSERIAL,
 123         LOCKDOWN_MODULE_PARAMETERS,
 124         LOCKDOWN_MMIOTRACE,
 125         LOCKDOWN_DEBUGFS,
 126         LOCKDOWN_XMON_WR,
 127         LOCKDOWN_BPF_WRITE_USER,
 128         LOCKDOWN_DBG_WRITE_KERNEL,
 129         LOCKDOWN_RTAS_ERROR_INJECTION,
 130         LOCKDOWN_INTEGRITY_MAX,
 131         LOCKDOWN_KCORE,
 132         LOCKDOWN_KPROBES,
 133         LOCKDOWN_BPF_READ_KERNEL,
 134         LOCKDOWN_DBG_READ_KERNEL,
 135         LOCKDOWN_PERF,
 136         LOCKDOWN_TRACEFS,
 137         LOCKDOWN_XMON_RW,
 138         LOCKDOWN_XFRM_SECRET,
 139         LOCKDOWN_CONFIDENTIALITY_MAX,
 140 };
 141
 142 extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1];
 143 extern u32 lsm_active_cnt;
 144 extern const struct lsm_id *lsm_idlist[];
 145
 146 /* These functions are in security/commoncap.c */
 147 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
 148                        int cap, unsigned int opts);
 149 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
 150 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
 151 extern int cap_ptrace_traceme(struct task_struct *parent);
 152 extern int cap_capget(const struct task_struct *target, kernel_cap_t *effective,
 153                       kernel_cap_t *inheritable, kernel_cap_t *permitted);
 154 extern int cap_capset(struct cred *new, const struct cred *old,
 155                       const kernel_cap_t *effective,
 156                       const kernel_cap_t *inheritable,
 157                       const kernel_cap_t *permitted);
 158 extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
 159 int cap_inode_setxattr(struct dentry *dentry, const char *name,
 160                        const void *value, size_t size, int flags);
 161 int cap_inode_removexattr(struct mnt_idmap *idmap,
 162                           struct dentry *dentry, const char *name);
 163 int cap_inode_need_killpriv(struct dentry *dentry);
 164 int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
 165 int cap_inode_getsecurity(struct mnt_idmap *idmap,
 166                           struct inode *inode, const char *name, void **buffer,
 167                           bool alloc);
 168 extern int cap_mmap_addr(unsigned long addr);
 169 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
 170                          unsigned long prot, unsigned long flags);
 171 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
 172 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 173                           unsigned long arg4, unsigned long arg5);
 174 extern int cap_task_setscheduler(struct task_struct *p);
 175 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
 176 extern int cap_task_setnice(struct task_struct *p, int nice);
 177 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
 178
 179 struct msghdr;
 180 struct sk_buff;
 181 struct sock;
 182 struct sockaddr;
 183 struct socket;
 184 struct flowi_common;
 185 struct dst_entry;
 186 struct xfrm_selector;
 187 struct xfrm_policy;
 188 struct xfrm_state;
 189 struct xfrm_user_sec_ctx;
 190 struct seq_file;
 191 struct sctp_association;
 192
 193 #ifdef CONFIG_MMU
 194 extern unsigned long mmap_min_addr;
 195 extern unsigned long dac_mmap_min_addr;
 196 #else
 197 #define mmap_min_addr           0UL
 198 #define dac_mmap_min_addr       0UL
 199 #endif
 200
 201 /*
 202  * Values used in the task_security_ops calls
 203  */
 204 /* setuid or setgid, id0 == uid or gid */
 205 #define LSM_SETID_ID    1
 206
 207 /* setreuid or setregid, id0 == real, id1 == eff */
 208 #define LSM_SETID_RE    2
 209
 210 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
 211 #define LSM_SETID_RES   4
 212
 213 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
 214 #define LSM_SETID_FS    8
 215
 216 /* Flags for security_task_prlimit(). */
 217 #define LSM_PRLIMIT_READ  1
 218 #define LSM_PRLIMIT_WRITE 2
 219
 220 /* forward declares to avoid warnings */
 221 struct sched_param;
 222 struct request_sock;
 223
 224 /* bprm->unsafe reasons */
 225 #define LSM_UNSAFE_SHARE        1
 226 #define LSM_UNSAFE_PTRACE       2
 227 #define LSM_UNSAFE_NO_NEW_PRIVS 4
 228
 229 #ifdef CONFIG_MMU
 230 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
 231                                  void *buffer, size_t *lenp, loff_t *ppos);
 232 #endif
 233
 234 /* security_inode_init_security callback function to write xattrs */
 235 typedef int (*initxattrs) (struct inode *inode,
 236                            const struct xattr *xattr_array, void *fs_data);
 237
 238
 239 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
 240 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
 241 #define __data_id_stringify(dummy, str) #str,
 242
 243 enum kernel_load_data_id {
 244         __kernel_read_file_id(__data_id_enumify)
 245 };
 246
 247 static const char * const kernel_load_data_str[] = {
 248         __kernel_read_file_id(__data_id_stringify)
 249 };
 250
 251 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
 252 {
 253         if ((unsigned)id >= LOADING_MAX_ID)
 254                 return kernel_load_data_str[LOADING_UNKNOWN];
 255
 256         return kernel_load_data_str[id];
 257 }
 258
 259 #ifdef CONFIG_SECURITY
 260
 261 int call_blocking_lsm_notifier(enum lsm_event event, void *data);
 262 int register_blocking_lsm_notifier(struct notifier_block *nb);
 263 int unregister_blocking_lsm_notifier(struct notifier_block *nb);
 264
 265 /* prototypes */
 266 extern int security_init(void);
 267 extern int early_security_init(void);
 268 extern u64 lsm_name_to_attr(const char *name);
 269
 270 /* Security operations */
 271 int security_binder_set_context_mgr(const struct cred *mgr);
 272 int security_binder_transaction(const struct cred *from,
 273                                 const struct cred *to);
 274 int security_binder_transfer_binder(const struct cred *from,
 275                                     const struct cred *to);
 276 int security_binder_transfer_file(const struct cred *from,
 277                                   const struct cred *to, const struct file *file);
 278 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
 279 int security_ptrace_traceme(struct task_struct *parent);
 280 int security_capget(const struct task_struct *target,
 281                     kernel_cap_t *effective,
 282                     kernel_cap_t *inheritable,
 283                     kernel_cap_t *permitted);
 284 int security_capset(struct cred *new, const struct cred *old,
 285                     const kernel_cap_t *effective,
 286                     const kernel_cap_t *inheritable,
 287                     const kernel_cap_t *permitted);
 288 int security_capable(const struct cred *cred,
 289                        struct user_namespace *ns,
 290                        int cap,
 291                        unsigned int opts);
 292 int security_quotactl(int cmds, int type, int id, const struct super_block *sb);
 293 int security_quota_on(struct dentry *dentry);
 294 int security_syslog(int type);
 295 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
 296 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
 297 int security_bprm_creds_for_exec(struct linux_binprm *bprm);
 298 int security_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
 299 int security_bprm_check(struct linux_binprm *bprm);
 300 void security_bprm_committing_creds(const struct linux_binprm *bprm);
 301 void security_bprm_committed_creds(const struct linux_binprm *bprm);
 302 int security_fs_context_submount(struct fs_context *fc, struct super_block *reference);
 303 int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
 304 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
 305 int security_sb_alloc(struct super_block *sb);
 306 void security_sb_delete(struct super_block *sb);
 307 void security_sb_free(struct super_block *sb);
 308 void security_free_mnt_opts(void **mnt_opts);
 309 int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
 310 int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts);
 311 int security_sb_remount(struct super_block *sb, void *mnt_opts);
 312 int security_sb_kern_mount(const struct super_block *sb);
 313 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
 314 int security_sb_statfs(struct dentry *dentry);
 315 int security_sb_mount(const char *dev_name, const struct path *path,
 316                       const char *type, unsigned long flags, void *data);
 317 int security_sb_umount(struct vfsmount *mnt, int flags);
 318 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
 319 int security_sb_set_mnt_opts(struct super_block *sb,
 320                                 void *mnt_opts,
 321                                 unsigned long kern_flags,
 322                                 unsigned long *set_kern_flags);
 323 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 324                                 struct super_block *newsb,
 325                                 unsigned long kern_flags,
 326                                 unsigned long *set_kern_flags);
 327 int security_move_mount(const struct path *from_path, const struct path *to_path);
 328 int security_dentry_init_security(struct dentry *dentry, int mode,
 329                                   const struct qstr *name,
 330                                   const char **xattr_name, void **ctx,
 331                                   u32 *ctxlen);
 332 int security_dentry_create_files_as(struct dentry *dentry, int mode,
 333                                         struct qstr *name,
 334                                         const struct cred *old,
 335                                         struct cred *new);
 336 int security_path_notify(const struct path *path, u64 mask,
 337                                         unsigned int obj_type);
 338 int security_inode_alloc(struct inode *inode);
 339 void security_inode_free(struct inode *inode);
 340 int security_inode_init_security(struct inode *inode, struct inode *dir,
 341                                  const struct qstr *qstr,
 342                                  initxattrs initxattrs, void *fs_data);
 343 int security_inode_init_security_anon(struct inode *inode,
 344                                       const struct qstr *name,
 345                                       const struct inode *context_inode);
 346 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
 347 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 348                          struct dentry *new_dentry);
 349 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
 350 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 351                            const char *old_name);
 352 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 353 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
 354 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
 355 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 356                           struct inode *new_dir, struct dentry *new_dentry,
 357                           unsigned int flags);
 358 int security_inode_readlink(struct dentry *dentry);
 359 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
 360                                bool rcu);
 361 int security_inode_permission(struct inode *inode, int mask);
 362 int security_inode_setattr(struct mnt_idmap *idmap,
 363                            struct dentry *dentry, struct iattr *attr);
 364 int security_inode_getattr(const struct path *path);
 365 int security_inode_setxattr(struct mnt_idmap *idmap,
 366                             struct dentry *dentry, const char *name,
 367                             const void *value, size_t size, int flags);
 368 int security_inode_set_acl(struct mnt_idmap *idmap,
 369                            struct dentry *dentry, const char *acl_name,
 370                            struct posix_acl *kacl);
 371 int security_inode_get_acl(struct mnt_idmap *idmap,
 372                            struct dentry *dentry, const char *acl_name);
 373 int security_inode_remove_acl(struct mnt_idmap *idmap,
 374                               struct dentry *dentry, const char *acl_name);
 375 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 376                                   const void *value, size_t size, int flags);
 377 int security_inode_getxattr(struct dentry *dentry, const char *name);
 378 int security_inode_listxattr(struct dentry *dentry);
 379 int security_inode_removexattr(struct mnt_idmap *idmap,
 380                                struct dentry *dentry, const char *name);
 381 int security_inode_need_killpriv(struct dentry *dentry);
 382 int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
 383 int security_inode_getsecurity(struct mnt_idmap *idmap,
 384                                struct inode *inode, const char *name,
 385                                void **buffer, bool alloc);
 386 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
 387 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
 388 void security_inode_getsecid(struct inode *inode, u32 *secid);
 389 int security_inode_copy_up(struct dentry *src, struct cred **new);
 390 int security_inode_copy_up_xattr(const char *name);
 391 int security_kernfs_init_security(struct kernfs_node *kn_dir,
 392                                   struct kernfs_node *kn);
 393 int security_file_permission(struct file *file, int mask);
 394 int security_file_alloc(struct file *file);
 395 void security_file_free(struct file *file);
 396 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 397 int security_file_ioctl_compat(struct file *file, unsigned int cmd,
 398                                unsigned long arg);
 399 int security_mmap_file(struct file *file, unsigned long prot,
 400                         unsigned long flags);
 401 int security_mmap_addr(unsigned long addr);
 402 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 403                            unsigned long prot);
 404 int security_file_lock(struct file *file, unsigned int cmd);
 405 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
 406 void security_file_set_fowner(struct file *file);
 407 int security_file_send_sigiotask(struct task_struct *tsk,
 408                                  struct fown_struct *fown, int sig);
 409 int security_file_receive(struct file *file);
 410 int security_file_open(struct file *file);
 411 int security_file_truncate(struct file *file);
 412 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
 413 void security_task_free(struct task_struct *task);
 414 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
 415 void security_cred_free(struct cred *cred);
 416 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
 417 void security_transfer_creds(struct cred *new, const struct cred *old);
 418 void security_cred_getsecid(const struct cred *c, u32 *secid);
 419 int security_kernel_act_as(struct cred *new, u32 secid);
 420 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
 421 int security_kernel_module_request(char *kmod_name);
 422 int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
 423 int security_kernel_post_load_data(char *buf, loff_t size,
 424                                    enum kernel_load_data_id id,
 425                                    char *description);
 426 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
 427                               bool contents);
 428 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
 429                                    enum kernel_read_file_id id);
 430 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 431                              int flags);
 432 int security_task_fix_setgid(struct cred *new, const struct cred *old,
 433                              int flags);
 434 int security_task_fix_setgroups(struct cred *new, const struct cred *old);
 435 int security_task_setpgid(struct task_struct *p, pid_t pgid);
 436 int security_task_getpgid(struct task_struct *p);
 437 int security_task_getsid(struct task_struct *p);
 438 void security_current_getsecid_subj(u32 *secid);
 439 void security_task_getsecid_obj(struct task_struct *p, u32 *secid);
 440 int security_task_setnice(struct task_struct *p, int nice);
 441 int security_task_setioprio(struct task_struct *p, int ioprio);
 442 int security_task_getioprio(struct task_struct *p);
 443 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
 444                           unsigned int flags);
 445 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 446                 struct rlimit *new_rlim);
 447 int security_task_setscheduler(struct task_struct *p);
 448 int security_task_getscheduler(struct task_struct *p);
 449 int security_task_movememory(struct task_struct *p);
 450 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
 451                         int sig, const struct cred *cred);
 452 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 453                         unsigned long arg4, unsigned long arg5);
 454 void security_task_to_inode(struct task_struct *p, struct inode *inode);
 455 int security_create_user_ns(const struct cred *cred);
 456 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
 457 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
 458 int security_msg_msg_alloc(struct msg_msg *msg);
 459 void security_msg_msg_free(struct msg_msg *msg);
 460 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
 461 void security_msg_queue_free(struct kern_ipc_perm *msq);
 462 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
 463 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
 464 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
 465                               struct msg_msg *msg, int msqflg);
 466 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
 467                               struct task_struct *target, long type, int mode);
 468 int security_shm_alloc(struct kern_ipc_perm *shp);
 469 void security_shm_free(struct kern_ipc_perm *shp);
 470 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
 471 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
 472 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
 473 int security_sem_alloc(struct kern_ipc_perm *sma);
 474 void security_sem_free(struct kern_ipc_perm *sma);
 475 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
 476 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
 477 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
 478                         unsigned nsops, int alter);
 479 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
 480 int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
 481                          size_t __user *size, u32 flags);
 482 int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
 483                          size_t size, u32 flags);
 484 int security_getprocattr(struct task_struct *p, int lsmid, const char *name,
 485                          char **value);
 486 int security_setprocattr(int lsmid, const char *name, void *value, size_t size);
 487 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
 488 int security_ismaclabel(const char *name);
 489 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
 490 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
 491 void security_release_secctx(char *secdata, u32 seclen);
 492 void security_inode_invalidate_secctx(struct inode *inode);
 493 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
 494 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
 495 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
 496 int security_locked_down(enum lockdown_reason what);
 497 int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, size_t *uctx_len,
 498                       void *val, size_t val_len, u64 id, u64 flags);
 499 #else /* CONFIG_SECURITY */
 500
 501 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
 502 {
 503         return 0;
 504 }
 505
 506 static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
 507 {
 508         return 0;
 509 }
 510
 511 static inline  int unregister_blocking_lsm_notifier(struct notifier_block *nb)
 512 {
 513         return 0;
 514 }
 515
 516 static inline u64 lsm_name_to_attr(const char *name)
 517 {
 518         return LSM_ATTR_UNDEF;
 519 }
 520
 521 static inline void security_free_mnt_opts(void **mnt_opts)
 522 {
 523 }
 524
 525 /*
 526  * This is the default capabilities functionality.  Most of these functions
 527  * are just stubbed out, but a few must call the proper capable code.
 528  */
 529
 530 static inline int security_init(void)
 531 {
 532         return 0;
 533 }
 534
 535 static inline int early_security_init(void)
 536 {
 537         return 0;
 538 }
 539
 540 static inline int security_binder_set_context_mgr(const struct cred *mgr)
 541 {
 542         return 0;
 543 }
 544
 545 static inline int security_binder_transaction(const struct cred *from,
 546                                               const struct cred *to)
 547 {
 548         return 0;
 549 }
 550
 551 static inline int security_binder_transfer_binder(const struct cred *from,
 552                                                   const struct cred *to)
 553 {
 554         return 0;
 555 }
 556
 557 static inline int security_binder_transfer_file(const struct cred *from,
 558                                                 const struct cred *to,
 559                                                 const struct file *file)
 560 {
 561         return 0;
 562 }
 563
 564 static inline int security_ptrace_access_check(struct task_struct *child,
 565                                              unsigned int mode)
 566 {
 567         return cap_ptrace_access_check(child, mode);
 568 }
 569
 570 static inline int security_ptrace_traceme(struct task_struct *parent)
 571 {
 572         return cap_ptrace_traceme(parent);
 573 }
 574
 575 static inline int security_capget(const struct task_struct *target,
 576                                    kernel_cap_t *effective,
 577                                    kernel_cap_t *inheritable,
 578                                    kernel_cap_t *permitted)
 579 {
 580         return cap_capget(target, effective, inheritable, permitted);
 581 }
 582
 583 static inline int security_capset(struct cred *new,
 584                                    const struct cred *old,
 585                                    const kernel_cap_t *effective,
 586                                    const kernel_cap_t *inheritable,
 587                                    const kernel_cap_t *permitted)
 588 {
 589         return cap_capset(new, old, effective, inheritable, permitted);
 590 }
 591
 592 static inline int security_capable(const struct cred *cred,
 593                                    struct user_namespace *ns,
 594                                    int cap,
 595                                    unsigned int opts)
 596 {
 597         return cap_capable(cred, ns, cap, opts);
 598 }
 599
 600 static inline int security_quotactl(int cmds, int type, int id,
 601                                      const struct super_block *sb)
 602 {
 603         return 0;
 604 }
 605
 606 static inline int security_quota_on(struct dentry *dentry)
 607 {
 608         return 0;
 609 }
 610
 611 static inline int security_syslog(int type)
 612 {
 613         return 0;
 614 }
 615
 616 static inline int security_settime64(const struct timespec64 *ts,
 617                                      const struct timezone *tz)
 618 {
 619         return cap_settime(ts, tz);
 620 }
 621
 622 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 623 {
 624         return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
 625 }
 626
 627 static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
 628 {
 629         return 0;
 630 }
 631
 632 static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
 633                                                 const struct file *file)
 634 {
 635         return cap_bprm_creds_from_file(bprm, file);
 636 }
 637
 638 static inline int security_bprm_check(struct linux_binprm *bprm)
 639 {
 640         return 0;
 641 }
 642
 643 static inline void security_bprm_committing_creds(const struct linux_binprm *bprm)
 644 {
 645 }
 646
 647 static inline void security_bprm_committed_creds(const struct linux_binprm *bprm)
 648 {
 649 }
 650
 651 static inline int security_fs_context_submount(struct fs_context *fc,
 652                                            struct super_block *reference)
 653 {
 654         return 0;
 655 }
 656 static inline int security_fs_context_dup(struct fs_context *fc,
 657                                           struct fs_context *src_fc)
 658 {
 659         return 0;
 660 }
 661 static inline int security_fs_context_parse_param(struct fs_context *fc,
 662                                                   struct fs_parameter *param)
 663 {
 664         return -ENOPARAM;
 665 }
 666
 667 static inline int security_sb_alloc(struct super_block *sb)
 668 {
 669         return 0;
 670 }
 671
 672 static inline void security_sb_delete(struct super_block *sb)
 673 { }
 674
 675 static inline void security_sb_free(struct super_block *sb)
 676 { }
 677
 678 static inline int security_sb_eat_lsm_opts(char *options,
 679                                            void **mnt_opts)
 680 {
 681         return 0;
 682 }
 683
 684 static inline int security_sb_remount(struct super_block *sb,
 685                                       void *mnt_opts)
 686 {
 687         return 0;
 688 }
 689
 690 static inline int security_sb_mnt_opts_compat(struct super_block *sb,
 691                                               void *mnt_opts)
 692 {
 693         return 0;
 694 }
 695
 696
 697 static inline int security_sb_kern_mount(struct super_block *sb)
 698 {
 699         return 0;
 700 }
 701
 702 static inline int security_sb_show_options(struct seq_file *m,
 703                                            struct super_block *sb)
 704 {
 705         return 0;
 706 }
 707
 708 static inline int security_sb_statfs(struct dentry *dentry)
 709 {
 710         return 0;
 711 }
 712
 713 static inline int security_sb_mount(const char *dev_name, const struct path *path,
 714                                     const char *type, unsigned long flags,
 715                                     void *data)
 716 {
 717         return 0;
 718 }
 719
 720 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
 721 {
 722         return 0;
 723 }
 724
 725 static inline int security_sb_pivotroot(const struct path *old_path,
 726                                         const struct path *new_path)
 727 {
 728         return 0;
 729 }
 730
 731 static inline int security_sb_set_mnt_opts(struct super_block *sb,
 732                                            void *mnt_opts,
 733                                            unsigned long kern_flags,
 734                                            unsigned long *set_kern_flags)
 735 {
 736         return 0;
 737 }
 738
 739 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 740                                               struct super_block *newsb,
 741                                               unsigned long kern_flags,
 742                                               unsigned long *set_kern_flags)
 743 {
 744         return 0;
 745 }
 746
 747 static inline int security_move_mount(const struct path *from_path,
 748                                       const struct path *to_path)
 749 {
 750         return 0;
 751 }
 752
 753 static inline int security_path_notify(const struct path *path, u64 mask,
 754                                 unsigned int obj_type)
 755 {
 756         return 0;
 757 }
 758
 759 static inline int security_inode_alloc(struct inode *inode)
 760 {
 761         return 0;
 762 }
 763
 764 static inline void security_inode_free(struct inode *inode)
 765 { }
 766
 767 static inline int security_dentry_init_security(struct dentry *dentry,
 768                                                  int mode,
 769                                                  const struct qstr *name,
 770                                                  const char **xattr_name,
 771                                                  void **ctx,
 772                                                  u32 *ctxlen)
 773 {
 774         return -EOPNOTSUPP;
 775 }
 776
 777 static inline int security_dentry_create_files_as(struct dentry *dentry,
 778                                                   int mode, struct qstr *name,
 779                                                   const struct cred *old,
 780                                                   struct cred *new)
 781 {
 782         return 0;
 783 }
 784
 785
 786 static inline int security_inode_init_security(struct inode *inode,
 787                                                 struct inode *dir,
 788                                                 const struct qstr *qstr,
 789                                                 const initxattrs xattrs,
 790                                                 void *fs_data)
 791 {
 792         return 0;
 793 }
 794
 795 static inline int security_inode_init_security_anon(struct inode *inode,
 796                                                     const struct qstr *name,
 797                                                     const struct inode *context_inode)
 798 {
 799         return 0;
 800 }
 801
 802 static inline int security_inode_create(struct inode *dir,
 803                                          struct dentry *dentry,
 804                                          umode_t mode)
 805 {
 806         return 0;
 807 }
 808
 809 static inline int security_inode_link(struct dentry *old_dentry,
 810                                        struct inode *dir,
 811                                        struct dentry *new_dentry)
 812 {
 813         return 0;
 814 }
 815
 816 static inline int security_inode_unlink(struct inode *dir,
 817                                          struct dentry *dentry)
 818 {
 819         return 0;
 820 }
 821
 822 static inline int security_inode_symlink(struct inode *dir,
 823                                           struct dentry *dentry,
 824                                           const char *old_name)
 825 {
 826         return 0;
 827 }
 828
 829 static inline int security_inode_mkdir(struct inode *dir,
 830                                         struct dentry *dentry,
 831                                         int mode)
 832 {
 833         return 0;
 834 }
 835
 836 static inline int security_inode_rmdir(struct inode *dir,
 837                                         struct dentry *dentry)
 838 {
 839         return 0;
 840 }
 841
 842 static inline int security_inode_mknod(struct inode *dir,
 843                                         struct dentry *dentry,
 844                                         int mode, dev_t dev)
 845 {
 846         return 0;
 847 }
 848
 849 static inline int security_inode_rename(struct inode *old_dir,
 850                                          struct dentry *old_dentry,
 851                                          struct inode *new_dir,
 852                                          struct dentry *new_dentry,
 853                                          unsigned int flags)
 854 {
 855         return 0;
 856 }
 857
 858 static inline int security_inode_readlink(struct dentry *dentry)
 859 {
 860         return 0;
 861 }
 862
 863 static inline int security_inode_follow_link(struct dentry *dentry,
 864                                              struct inode *inode,
 865                                              bool rcu)
 866 {
 867         return 0;
 868 }
 869
 870 static inline int security_inode_permission(struct inode *inode, int mask)
 871 {
 872         return 0;
 873 }
 874
 875 static inline int security_inode_setattr(struct mnt_idmap *idmap,
 876                                          struct dentry *dentry,
 877                                          struct iattr *attr)
 878 {
 879         return 0;
 880 }
 881
 882 static inline int security_inode_getattr(const struct path *path)
 883 {
 884         return 0;
 885 }
 886
 887 static inline int security_inode_setxattr(struct mnt_idmap *idmap,
 888                 struct dentry *dentry, const char *name, const void *value,
 889                 size_t size, int flags)
 890 {
 891         return cap_inode_setxattr(dentry, name, value, size, flags);
 892 }
 893
 894 static inline int security_inode_set_acl(struct mnt_idmap *idmap,
 895                                          struct dentry *dentry,
 896                                          const char *acl_name,
 897                                          struct posix_acl *kacl)
 898 {
 899         return 0;
 900 }
 901
 902 static inline int security_inode_get_acl(struct mnt_idmap *idmap,
 903                                          struct dentry *dentry,
 904                                          const char *acl_name)
 905 {
 906         return 0;
 907 }
 908
 909 static inline int security_inode_remove_acl(struct mnt_idmap *idmap,
 910                                             struct dentry *dentry,
 911                                             const char *acl_name)
 912 {
 913         return 0;
 914 }
 915
 916 static inline void security_inode_post_setxattr(struct dentry *dentry,
 917                 const char *name, const void *value, size_t size, int flags)
 918 { }
 919
 920 static inline int security_inode_getxattr(struct dentry *dentry,
 921                         const char *name)
 922 {
 923         return 0;
 924 }
 925
 926 static inline int security_inode_listxattr(struct dentry *dentry)
 927 {
 928         return 0;
 929 }
 930
 931 static inline int security_inode_removexattr(struct mnt_idmap *idmap,
 932                                              struct dentry *dentry,
 933                                              const char *name)
 934 {
 935         return cap_inode_removexattr(idmap, dentry, name);
 936 }
 937
 938 static inline int security_inode_need_killpriv(struct dentry *dentry)
 939 {
 940         return cap_inode_need_killpriv(dentry);
 941 }
 942
 943 static inline int security_inode_killpriv(struct mnt_idmap *idmap,
 944                                           struct dentry *dentry)
 945 {
 946         return cap_inode_killpriv(idmap, dentry);
 947 }
 948
 949 static inline int security_inode_getsecurity(struct mnt_idmap *idmap,
 950                                              struct inode *inode,
 951                                              const char *name, void **buffer,
 952                                              bool alloc)
 953 {
 954         return cap_inode_getsecurity(idmap, inode, name, buffer, alloc);
 955 }
 956
 957 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 958 {
 959         return -EOPNOTSUPP;
 960 }
 961
 962 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 963 {
 964         return 0;
 965 }
 966
 967 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
 968 {
 969         *secid = 0;
 970 }
 971
 972 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
 973 {
 974         return 0;
 975 }
 976
 977 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
 978                                                 struct kernfs_node *kn)
 979 {
 980         return 0;
 981 }
 982
 983 static inline int security_inode_copy_up_xattr(const char *name)
 984 {
 985         return -EOPNOTSUPP;
 986 }
 987
 988 static inline int security_file_permission(struct file *file, int mask)
 989 {
 990         return 0;
 991 }
 992
 993 static inline int security_file_alloc(struct file *file)
 994 {
 995         return 0;
 996 }
 997
 998 static inline void security_file_free(struct file *file)
 999 { }
1000
1001 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
1002                                       unsigned long arg)
1003 {
1004         return 0;
1005 }
1006
1007 static inline int security_file_ioctl_compat(struct file *file,
1008                                              unsigned int cmd,
1009                                              unsigned long arg)
1010 {
1011         return 0;
1012 }
1013
1014 static inline int security_mmap_file(struct file *file, unsigned long prot,
1015                                      unsigned long flags)
1016 {
1017         return 0;
1018 }
1019
1020 static inline int security_mmap_addr(unsigned long addr)
1021 {
1022         return cap_mmap_addr(addr);
1023 }
1024
1025 static inline int security_file_mprotect(struct vm_area_struct *vma,
1026                                          unsigned long reqprot,
1027                                          unsigned long prot)
1028 {
1029         return 0;
1030 }
1031
1032 static inline int security_file_lock(struct file *file, unsigned int cmd)
1033 {
1034         return 0;
1035 }
1036
1037 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
1038                                       unsigned long arg)
1039 {
1040         return 0;
1041 }
1042
1043 static inline void security_file_set_fowner(struct file *file)
1044 {
1045         return;
1046 }
1047
1048 static inline int security_file_send_sigiotask(struct task_struct *tsk,
1049                                                struct fown_struct *fown,
1050                                                int sig)
1051 {
1052         return 0;
1053 }
1054
1055 static inline int security_file_receive(struct file *file)
1056 {
1057         return 0;
1058 }
1059
1060 static inline int security_file_open(struct file *file)
1061 {
1062         return 0;
1063 }
1064
1065 static inline int security_file_truncate(struct file *file)
1066 {
1067         return 0;
1068 }
1069
1070 static inline int security_task_alloc(struct task_struct *task,
1071                                       unsigned long clone_flags)
1072 {
1073         return 0;
1074 }
1075
1076 static inline void security_task_free(struct task_struct *task)
1077 { }
1078
1079 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
1080 {
1081         return 0;
1082 }
1083
1084 static inline void security_cred_free(struct cred *cred)
1085 { }
1086
1087 static inline int security_prepare_creds(struct cred *new,
1088                                          const struct cred *old,
1089                                          gfp_t gfp)
1090 {
1091         return 0;
1092 }
1093
1094 static inline void security_transfer_creds(struct cred *new,
1095                                            const struct cred *old)
1096 {
1097 }
1098
1099 static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
1100 {
1101         *secid = 0;
1102 }
1103
1104 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1105 {
1106         return 0;
1107 }
1108
1109 static inline int security_kernel_create_files_as(struct cred *cred,
1110                                                   struct inode *inode)
1111 {
1112         return 0;
1113 }
1114
1115 static inline int security_kernel_module_request(char *kmod_name)
1116 {
1117         return 0;
1118 }
1119
1120 static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents)
1121 {
1122         return 0;
1123 }
1124
1125 static inline int security_kernel_post_load_data(char *buf, loff_t size,
1126                                                  enum kernel_load_data_id id,
1127                                                  char *description)
1128 {
1129         return 0;
1130 }
1131
1132 static inline int security_kernel_read_file(struct file *file,
1133                                             enum kernel_read_file_id id,
1134                                             bool contents)
1135 {
1136         return 0;
1137 }
1138
1139 static inline int security_kernel_post_read_file(struct file *file,
1140                                                  char *buf, loff_t size,
1141                                                  enum kernel_read_file_id id)
1142 {
1143         return 0;
1144 }
1145
1146 static inline int security_task_fix_setuid(struct cred *new,
1147                                            const struct cred *old,
1148                                            int flags)
1149 {
1150         return cap_task_fix_setuid(new, old, flags);
1151 }
1152
1153 static inline int security_task_fix_setgid(struct cred *new,
1154                                            const struct cred *old,
1155                                            int flags)
1156 {
1157         return 0;
1158 }
1159
1160 static inline int security_task_fix_setgroups(struct cred *new,
1161                                            const struct cred *old)
1162 {
1163         return 0;
1164 }
1165
1166 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1167 {
1168         return 0;
1169 }
1170
1171 static inline int security_task_getpgid(struct task_struct *p)
1172 {
1173         return 0;
1174 }
1175
1176 static inline int security_task_getsid(struct task_struct *p)
1177 {
1178         return 0;
1179 }
1180
1181 static inline void security_current_getsecid_subj(u32 *secid)
1182 {
1183         *secid = 0;
1184 }
1185
1186 static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid)
1187 {
1188         *secid = 0;
1189 }
1190
1191 static inline int security_task_setnice(struct task_struct *p, int nice)
1192 {
1193         return cap_task_setnice(p, nice);
1194 }
1195
1196 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1197 {
1198         return cap_task_setioprio(p, ioprio);
1199 }
1200
1201 static inline int security_task_getioprio(struct task_struct *p)
1202 {
1203         return 0;
1204 }
1205
1206 static inline int security_task_prlimit(const struct cred *cred,
1207                                         const struct cred *tcred,
1208                                         unsigned int flags)
1209 {
1210         return 0;
1211 }
1212
1213 static inline int security_task_setrlimit(struct task_struct *p,
1214                                           unsigned int resource,
1215                                           struct rlimit *new_rlim)
1216 {
1217         return 0;
1218 }
1219
1220 static inline int security_task_setscheduler(struct task_struct *p)
1221 {
1222         return cap_task_setscheduler(p);
1223 }
1224
1225 static inline int security_task_getscheduler(struct task_struct *p)
1226 {
1227         return 0;
1228 }
1229
1230 static inline int security_task_movememory(struct task_struct *p)
1231 {
1232         return 0;
1233 }
1234
1235 static inline int security_task_kill(struct task_struct *p,
1236                                      struct kernel_siginfo *info, int sig,
1237                                      const struct cred *cred)
1238 {
1239         return 0;
1240 }
1241
1242 static inline int security_task_prctl(int option, unsigned long arg2,
1243                                       unsigned long arg3,
1244                                       unsigned long arg4,
1245                                       unsigned long arg5)
1246 {
1247         return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1248 }
1249
1250 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1251 { }
1252
1253 static inline int security_create_user_ns(const struct cred *cred)
1254 {
1255         return 0;
1256 }
1257
1258 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1259                                           short flag)
1260 {
1261         return 0;
1262 }
1263
1264 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1265 {
1266         *secid = 0;
1267 }
1268
1269 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1270 {
1271         return 0;
1272 }
1273
1274 static inline void security_msg_msg_free(struct msg_msg *msg)
1275 { }
1276
1277 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1278 {
1279         return 0;
1280 }
1281
1282 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1283 { }
1284
1285 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1286                                                int msqflg)
1287 {
1288         return 0;
1289 }
1290
1291 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1292 {
1293         return 0;
1294 }
1295
1296 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1297                                             struct msg_msg *msg, int msqflg)
1298 {
1299         return 0;
1300 }
1301
1302 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1303                                             struct msg_msg *msg,
1304                                             struct task_struct *target,
1305                                             long type, int mode)
1306 {
1307         return 0;
1308 }
1309
1310 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1311 {
1312         return 0;
1313 }
1314
1315 static inline void security_shm_free(struct kern_ipc_perm *shp)
1316 { }
1317
1318 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1319                                          int shmflg)
1320 {
1321         return 0;
1322 }
1323
1324 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1325 {
1326         return 0;
1327 }
1328
1329 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1330                                      char __user *shmaddr, int shmflg)
1331 {
1332         return 0;
1333 }
1334
1335 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1336 {
1337         return 0;
1338 }
1339
1340 static inline void security_sem_free(struct kern_ipc_perm *sma)
1341 { }
1342
1343 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1344 {
1345         return 0;
1346 }
1347
1348 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1349 {
1350         return 0;
1351 }
1352
1353 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1354                                      struct sembuf *sops, unsigned nsops,
1355                                      int alter)
1356 {
1357         return 0;
1358 }
1359
1360 static inline void security_d_instantiate(struct dentry *dentry,
1361                                           struct inode *inode)
1362 { }
1363
1364 static inline int security_getselfattr(unsigned int attr,
1365                                        struct lsm_ctx __user *ctx,
1366                                        size_t __user *size, u32 flags)
1367 {
1368         return -EOPNOTSUPP;
1369 }
1370
1371 static inline int security_setselfattr(unsigned int attr,
1372                                        struct lsm_ctx __user *ctx,
1373                                        size_t size, u32 flags)
1374 {
1375         return -EOPNOTSUPP;
1376 }
1377
1378 static inline int security_getprocattr(struct task_struct *p, int lsmid,
1379                                        const char *name, char **value)
1380 {
1381         return -EINVAL;
1382 }
1383
1384 static inline int security_setprocattr(int lsmid, char *name, void *value,
1385                                        size_t size)
1386 {
1387         return -EINVAL;
1388 }
1389
1390 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1391 {
1392         return 0;
1393 }
1394
1395 static inline int security_ismaclabel(const char *name)
1396 {
1397         return 0;
1398 }
1399
1400 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1401 {
1402         return -EOPNOTSUPP;
1403 }
1404
1405 static inline int security_secctx_to_secid(const char *secdata,
1406                                            u32 seclen,
1407                                            u32 *secid)
1408 {
1409         return -EOPNOTSUPP;
1410 }
1411
1412 static inline void security_release_secctx(char *secdata, u32 seclen)
1413 {
1414 }
1415
1416 static inline void security_inode_invalidate_secctx(struct inode *inode)
1417 {
1418 }
1419
1420 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1421 {
1422         return -EOPNOTSUPP;
1423 }
1424 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1425 {
1426         return -EOPNOTSUPP;
1427 }
1428 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1429 {
1430         return -EOPNOTSUPP;
1431 }
1432 static inline int security_locked_down(enum lockdown_reason what)
1433 {
1434         return 0;
1435 }
1436 static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx,
1437                                     size_t *uctx_len, void *val, size_t val_len,
1438                                     u64 id, u64 flags)
1439 {
1440         return -EOPNOTSUPP;
1441 }
1442 #endif  /* CONFIG_SECURITY */
1443
1444 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1445 int security_post_notification(const struct cred *w_cred,
1446                                const struct cred *cred,
1447                                struct watch_notification *n);
1448 #else
1449 static inline int security_post_notification(const struct cred *w_cred,
1450                                              const struct cred *cred,
1451                                              struct watch_notification *n)
1452 {
1453         return 0;
1454 }
1455 #endif
1456
1457 #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1458 int security_watch_key(struct key *key);
1459 #else
1460 static inline int security_watch_key(struct key *key)
1461 {
1462         return 0;
1463 }
1464 #endif
1465
1466 #ifdef CONFIG_SECURITY_NETWORK
1467
1468 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1469 int security_unix_may_send(struct socket *sock,  struct socket *other);
1470 int security_socket_create(int family, int type, int protocol, int kern);
1471 int security_socket_post_create(struct socket *sock, int family,
1472                                 int type, int protocol, int kern);
1473 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1474 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1475 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1476 int security_socket_listen(struct socket *sock, int backlog);
1477 int security_socket_accept(struct socket *sock, struct socket *newsock);
1478 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1479 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1480                             int size, int flags);
1481 int security_socket_getsockname(struct socket *sock);
1482 int security_socket_getpeername(struct socket *sock);
1483 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1484 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1485 int security_socket_shutdown(struct socket *sock, int how);
1486 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1487 int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval,
1488                                       sockptr_t optlen, unsigned int len);
1489 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1490 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1491 void security_sk_free(struct sock *sk);
1492 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1493 void security_sk_classify_flow(const struct sock *sk,
1494                                struct flowi_common *flic);
1495 void security_req_classify_flow(const struct request_sock *req,
1496                                 struct flowi_common *flic);
1497 void security_sock_graft(struct sock*sk, struct socket *parent);
1498 int security_inet_conn_request(const struct sock *sk,
1499                         struct sk_buff *skb, struct request_sock *req);
1500 void security_inet_csk_clone(struct sock *newsk,
1501                         const struct request_sock *req);
1502 void security_inet_conn_established(struct sock *sk,
1503                         struct sk_buff *skb);
1504 int security_secmark_relabel_packet(u32 secid);
1505 void security_secmark_refcount_inc(void);
1506 void security_secmark_refcount_dec(void);
1507 int security_tun_dev_alloc_security(void **security);
1508 void security_tun_dev_free_security(void *security);
1509 int security_tun_dev_create(void);
1510 int security_tun_dev_attach_queue(void *security);
1511 int security_tun_dev_attach(struct sock *sk, void *security);
1512 int security_tun_dev_open(void *security);
1513 int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb);
1514 int security_sctp_bind_connect(struct sock *sk, int optname,
1515                                struct sockaddr *address, int addrlen);
1516 void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
1517                             struct sock *newsk);
1518 int security_sctp_assoc_established(struct sctp_association *asoc,
1519                                     struct sk_buff *skb);
1520 int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk);
1521
1522 #else   /* CONFIG_SECURITY_NETWORK */
1523 static inline int security_unix_stream_connect(struct sock *sock,
1524                                                struct sock *other,
1525                                                struct sock *newsk)
1526 {
1527         return 0;
1528 }
1529
1530 static inline int security_unix_may_send(struct socket *sock,
1531                                          struct socket *other)
1532 {
1533         return 0;
1534 }
1535
1536 static inline int security_socket_create(int family, int type,
1537                                          int protocol, int kern)
1538 {
1539         return 0;
1540 }
1541
1542 static inline int security_socket_post_create(struct socket *sock,
1543                                               int family,
1544                                               int type,
1545                                               int protocol, int kern)
1546 {
1547         return 0;
1548 }
1549
1550 static inline int security_socket_socketpair(struct socket *socka,
1551                                              struct socket *sockb)
1552 {
1553         return 0;
1554 }
1555
1556 static inline int security_socket_bind(struct socket *sock,
1557                                        struct sockaddr *address,
1558                                        int addrlen)
1559 {
1560         return 0;
1561 }
1562
1563 static inline int security_socket_connect(struct socket *sock,
1564                                           struct sockaddr *address,
1565                                           int addrlen)
1566 {
1567         return 0;
1568 }
1569
1570 static inline int security_socket_listen(struct socket *sock, int backlog)
1571 {
1572         return 0;
1573 }
1574
1575 static inline int security_socket_accept(struct socket *sock,
1576                                          struct socket *newsock)
1577 {
1578         return 0;
1579 }
1580
1581 static inline int security_socket_sendmsg(struct socket *sock,
1582                                           struct msghdr *msg, int size)
1583 {
1584         return 0;
1585 }
1586
1587 static inline int security_socket_recvmsg(struct socket *sock,
1588                                           struct msghdr *msg, int size,
1589                                           int flags)
1590 {
1591         return 0;
1592 }
1593
1594 static inline int security_socket_getsockname(struct socket *sock)
1595 {
1596         return 0;
1597 }
1598
1599 static inline int security_socket_getpeername(struct socket *sock)
1600 {
1601         return 0;
1602 }
1603
1604 static inline int security_socket_getsockopt(struct socket *sock,
1605                                              int level, int optname)
1606 {
1607         return 0;
1608 }
1609
1610 static inline int security_socket_setsockopt(struct socket *sock,
1611                                              int level, int optname)
1612 {
1613         return 0;
1614 }
1615
1616 static inline int security_socket_shutdown(struct socket *sock, int how)
1617 {
1618         return 0;
1619 }
1620 static inline int security_sock_rcv_skb(struct sock *sk,
1621                                         struct sk_buff *skb)
1622 {
1623         return 0;
1624 }
1625
1626 static inline int security_socket_getpeersec_stream(struct socket *sock,
1627                                                     sockptr_t optval,
1628                                                     sockptr_t optlen,
1629                                                     unsigned int len)
1630 {
1631         return -ENOPROTOOPT;
1632 }
1633
1634 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1635 {
1636         return -ENOPROTOOPT;
1637 }
1638
1639 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1640 {
1641         return 0;
1642 }
1643
1644 static inline void security_sk_free(struct sock *sk)
1645 {
1646 }
1647
1648 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1649 {
1650 }
1651
1652 static inline void security_sk_classify_flow(const struct sock *sk,
1653                                              struct flowi_common *flic)
1654 {
1655 }
1656
1657 static inline void security_req_classify_flow(const struct request_sock *req,
1658                                               struct flowi_common *flic)
1659 {
1660 }
1661
1662 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1663 {
1664 }
1665
1666 static inline int security_inet_conn_request(const struct sock *sk,
1667                         struct sk_buff *skb, struct request_sock *req)
1668 {
1669         return 0;
1670 }
1671
1672 static inline void security_inet_csk_clone(struct sock *newsk,
1673                         const struct request_sock *req)
1674 {
1675 }
1676
1677 static inline void security_inet_conn_established(struct sock *sk,
1678                         struct sk_buff *skb)
1679 {
1680 }
1681
1682 static inline int security_secmark_relabel_packet(u32 secid)
1683 {
1684         return 0;
1685 }
1686
1687 static inline void security_secmark_refcount_inc(void)
1688 {
1689 }
1690
1691 static inline void security_secmark_refcount_dec(void)
1692 {
1693 }
1694
1695 static inline int security_tun_dev_alloc_security(void **security)
1696 {
1697         return 0;
1698 }
1699
1700 static inline void security_tun_dev_free_security(void *security)
1701 {
1702 }
1703
1704 static inline int security_tun_dev_create(void)
1705 {
1706         return 0;
1707 }
1708
1709 static inline int security_tun_dev_attach_queue(void *security)
1710 {
1711         return 0;
1712 }
1713
1714 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1715 {
1716         return 0;
1717 }
1718
1719 static inline int security_tun_dev_open(void *security)
1720 {
1721         return 0;
1722 }
1723
1724 static inline int security_sctp_assoc_request(struct sctp_association *asoc,
1725                                               struct sk_buff *skb)
1726 {
1727         return 0;
1728 }
1729
1730 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1731                                              struct sockaddr *address,
1732                                              int addrlen)
1733 {
1734         return 0;
1735 }
1736
1737 static inline void security_sctp_sk_clone(struct sctp_association *asoc,
1738                                           struct sock *sk,
1739                                           struct sock *newsk)
1740 {
1741 }
1742
1743 static inline int security_sctp_assoc_established(struct sctp_association *asoc,
1744                                                   struct sk_buff *skb)
1745 {
1746         return 0;
1747 }
1748
1749 static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk)
1750 {
1751         return 0;
1752 }
1753 #endif  /* CONFIG_SECURITY_NETWORK */
1754
1755 #ifdef CONFIG_SECURITY_INFINIBAND
1756 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1757 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1758 int security_ib_alloc_security(void **sec);
1759 void security_ib_free_security(void *sec);
1760 #else   /* CONFIG_SECURITY_INFINIBAND */
1761 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1762 {
1763         return 0;
1764 }
1765
1766 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1767 {
1768         return 0;
1769 }
1770
1771 static inline int security_ib_alloc_security(void **sec)
1772 {
1773         return 0;
1774 }
1775
1776 static inline void security_ib_free_security(void *sec)
1777 {
1778 }
1779 #endif  /* CONFIG_SECURITY_INFINIBAND */
1780
1781 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1782
1783 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1784                                struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1785 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1786 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1787 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1788 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1789 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1790                                       struct xfrm_sec_ctx *polsec, u32 secid);
1791 int security_xfrm_state_delete(struct xfrm_state *x);
1792 void security_xfrm_state_free(struct xfrm_state *x);
1793 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
1794 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1795                                        struct xfrm_policy *xp,
1796                                        const struct flowi_common *flic);
1797 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1798 void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic);
1799
1800 #else   /* CONFIG_SECURITY_NETWORK_XFRM */
1801
1802 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1803                                              struct xfrm_user_sec_ctx *sec_ctx,
1804                                              gfp_t gfp)
1805 {
1806         return 0;
1807 }
1808
1809 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1810 {
1811         return 0;
1812 }
1813
1814 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1815 {
1816 }
1817
1818 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1819 {
1820         return 0;
1821 }
1822
1823 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1824                                         struct xfrm_user_sec_ctx *sec_ctx)
1825 {
1826         return 0;
1827 }
1828
1829 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1830                                         struct xfrm_sec_ctx *polsec, u32 secid)
1831 {
1832         return 0;
1833 }
1834
1835 static inline void security_xfrm_state_free(struct xfrm_state *x)
1836 {
1837 }
1838
1839 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1840 {
1841         return 0;
1842 }
1843
1844 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
1845 {
1846         return 0;
1847 }
1848
1849 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1850                                                      struct xfrm_policy *xp,
1851                                                      const struct flowi_common *flic)
1852 {
1853         return 1;
1854 }
1855
1856 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1857 {
1858         return 0;
1859 }
1860
1861 static inline void security_skb_classify_flow(struct sk_buff *skb,
1862                                               struct flowi_common *flic)
1863 {
1864 }
1865
1866 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1867
1868 #ifdef CONFIG_SECURITY_PATH
1869 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1870 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1871 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1872 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1873                         unsigned int dev);
1874 int security_path_truncate(const struct path *path);
1875 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1876                           const char *old_name);
1877 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1878                        struct dentry *new_dentry);
1879 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1880                          const struct path *new_dir, struct dentry *new_dentry,
1881                          unsigned int flags);
1882 int security_path_chmod(const struct path *path, umode_t mode);
1883 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1884 int security_path_chroot(const struct path *path);
1885 #else   /* CONFIG_SECURITY_PATH */
1886 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1887 {
1888         return 0;
1889 }
1890
1891 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1892                                       umode_t mode)
1893 {
1894         return 0;
1895 }
1896
1897 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1898 {
1899         return 0;
1900 }
1901
1902 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1903                                       umode_t mode, unsigned int dev)
1904 {
1905         return 0;
1906 }
1907
1908 static inline int security_path_truncate(const struct path *path)
1909 {
1910         return 0;
1911 }
1912
1913 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1914                                         const char *old_name)
1915 {
1916         return 0;
1917 }
1918
1919 static inline int security_path_link(struct dentry *old_dentry,
1920                                      const struct path *new_dir,
1921                                      struct dentry *new_dentry)
1922 {
1923         return 0;
1924 }
1925
1926 static inline int security_path_rename(const struct path *old_dir,
1927                                        struct dentry *old_dentry,
1928                                        const struct path *new_dir,
1929                                        struct dentry *new_dentry,
1930                                        unsigned int flags)
1931 {
1932         return 0;
1933 }
1934
1935 static inline int security_path_chmod(const struct path *path, umode_t mode)
1936 {
1937         return 0;
1938 }
1939
1940 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1941 {
1942         return 0;
1943 }
1944
1945 static inline int security_path_chroot(const struct path *path)
1946 {
1947         return 0;
1948 }
1949 #endif  /* CONFIG_SECURITY_PATH */
1950
1951 #ifdef CONFIG_KEYS
1952 #ifdef CONFIG_SECURITY
1953
1954 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1955 void security_key_free(struct key *key);
1956 int security_key_permission(key_ref_t key_ref, const struct cred *cred,
1957                             enum key_need_perm need_perm);
1958 int security_key_getsecurity(struct key *key, char **_buffer);
1959
1960 #else
1961
1962 static inline int security_key_alloc(struct key *key,
1963                                      const struct cred *cred,
1964                                      unsigned long flags)
1965 {
1966         return 0;
1967 }
1968
1969 static inline void security_key_free(struct key *key)
1970 {
1971 }
1972
1973 static inline int security_key_permission(key_ref_t key_ref,
1974                                           const struct cred *cred,
1975                                           enum key_need_perm need_perm)
1976 {
1977         return 0;
1978 }
1979
1980 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1981 {
1982         *_buffer = NULL;
1983         return 0;
1984 }
1985
1986 #endif
1987 #endif /* CONFIG_KEYS */
1988
1989 #ifdef CONFIG_AUDIT
1990 #ifdef CONFIG_SECURITY
1991 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1992 int security_audit_rule_known(struct audit_krule *krule);
1993 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1994 void security_audit_rule_free(void *lsmrule);
1995
1996 #else
1997
1998 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1999                                            void **lsmrule)
2000 {
2001         return 0;
2002 }
2003
2004 static inline int security_audit_rule_known(struct audit_krule *krule)
2005 {
2006         return 0;
2007 }
2008
2009 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2010                                             void *lsmrule)
2011 {
2012         return 0;
2013 }
2014
2015 static inline void security_audit_rule_free(void *lsmrule)
2016 { }
2017
2018 #endif /* CONFIG_SECURITY */
2019 #endif /* CONFIG_AUDIT */
2020
2021 #ifdef CONFIG_SECURITYFS
2022
2023 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
2024                                              struct dentry *parent, void *data,
2025                                              const struct file_operations *fops);
2026 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2027 struct dentry *securityfs_create_symlink(const char *name,
2028                                          struct dentry *parent,
2029                                          const char *target,
2030                                          const struct inode_operations *iops);
2031 extern void securityfs_remove(struct dentry *dentry);
2032
2033 #else /* CONFIG_SECURITYFS */
2034
2035 static inline struct dentry *securityfs_create_dir(const char *name,
2036                                                    struct dentry *parent)
2037 {
2038         return ERR_PTR(-ENODEV);
2039 }
2040
2041 static inline struct dentry *securityfs_create_file(const char *name,
2042                                                     umode_t mode,
2043                                                     struct dentry *parent,
2044                                                     void *data,
2045                                                     const struct file_operations *fops)
2046 {
2047         return ERR_PTR(-ENODEV);
2048 }
2049
2050 static inline struct dentry *securityfs_create_symlink(const char *name,
2051                                         struct dentry *parent,
2052                                         const char *target,
2053                                         const struct inode_operations *iops)
2054 {
2055         return ERR_PTR(-ENODEV);
2056 }
2057
2058 static inline void securityfs_remove(struct dentry *dentry)
2059 {}
2060
2061 #endif
2062
2063 #ifdef CONFIG_BPF_SYSCALL
2064 union bpf_attr;
2065 struct bpf_map;
2066 struct bpf_prog;
2067 struct bpf_prog_aux;
2068 #ifdef CONFIG_SECURITY
2069 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
2070 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
2071 extern int security_bpf_prog(struct bpf_prog *prog);
2072 extern int security_bpf_map_alloc(struct bpf_map *map);
2073 extern void security_bpf_map_free(struct bpf_map *map);
2074 extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
2075 extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
2076 #else
2077 static inline int security_bpf(int cmd, union bpf_attr *attr,
2078                                              unsigned int size)
2079 {
2080         return 0;
2081 }
2082
2083 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
2084 {
2085         return 0;
2086 }
2087
2088 static inline int security_bpf_prog(struct bpf_prog *prog)
2089 {
2090         return 0;
2091 }
2092
2093 static inline int security_bpf_map_alloc(struct bpf_map *map)
2094 {
2095         return 0;
2096 }
2097
2098 static inline void security_bpf_map_free(struct bpf_map *map)
2099 { }
2100
2101 static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
2102 {
2103         return 0;
2104 }
2105
2106 static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
2107 { }
2108 #endif /* CONFIG_SECURITY */
2109 #endif /* CONFIG_BPF_SYSCALL */
2110
2111 #ifdef CONFIG_PERF_EVENTS
2112 struct perf_event_attr;
2113 struct perf_event;
2114
2115 #ifdef CONFIG_SECURITY
2116 extern int security_perf_event_open(struct perf_event_attr *attr, int type);
2117 extern int security_perf_event_alloc(struct perf_event *event);
2118 extern void security_perf_event_free(struct perf_event *event);
2119 extern int security_perf_event_read(struct perf_event *event);
2120 extern int security_perf_event_write(struct perf_event *event);
2121 #else
2122 static inline int security_perf_event_open(struct perf_event_attr *attr,
2123                                            int type)
2124 {
2125         return 0;
2126 }
2127
2128 static inline int security_perf_event_alloc(struct perf_event *event)
2129 {
2130         return 0;
2131 }
2132
2133 static inline void security_perf_event_free(struct perf_event *event)
2134 {
2135 }
2136
2137 static inline int security_perf_event_read(struct perf_event *event)
2138 {
2139         return 0;
2140 }
2141
2142 static inline int security_perf_event_write(struct perf_event *event)
2143 {
2144         return 0;
2145 }
2146 #endif /* CONFIG_SECURITY */
2147 #endif /* CONFIG_PERF_EVENTS */
2148
2149 #ifdef CONFIG_IO_URING
2150 #ifdef CONFIG_SECURITY
2151 extern int security_uring_override_creds(const struct cred *new);
2152 extern int security_uring_sqpoll(void);
2153 extern int security_uring_cmd(struct io_uring_cmd *ioucmd);
2154 #else
2155 static inline int security_uring_override_creds(const struct cred *new)
2156 {
2157         return 0;
2158 }
2159 static inline int security_uring_sqpoll(void)
2160 {
2161         return 0;
2162 }
2163 static inline int security_uring_cmd(struct io_uring_cmd *ioucmd)
2164 {
2165         return 0;
2166 }
2167 #endif /* CONFIG_SECURITY */
2168 #endif /* CONFIG_IO_URING */
2169
2170 #endif /* ! __LINUX_SECURITY_H */