include/linux/security.h

   1 /*
   2  * Linux Security plug
   3  *
   4  * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
   5  * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
   6  * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
   7  * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
   8  * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
   9  * Copyright (C) 2016 Mellanox Techonologies
  10  *
  11  *      This program is free software; you can redistribute it and/or modify
  12  *      it under the terms of the GNU General Public License as published by
  13  *      the Free Software Foundation; either version 2 of the License, or
  14  *      (at your option) any later version.
  15  *
  16  *      Due to this file being licensed under the GPL there is controversy over
  17  *      whether this permits you to write a module that #includes this file
  18  *      without placing your module under the GPL.  Please consult a lawyer for
  19  *      advice before doing this.
  20  *
  21  */
  22
  23 #ifndef __LINUX_SECURITY_H
  24 #define __LINUX_SECURITY_H
  25
  26 #include <linux/key.h>
  27 #include <linux/capability.h>
  28 #include <linux/fs.h>
  29 #include <linux/slab.h>
  30 #include <linux/err.h>
  31 #include <linux/string.h>
  32 #include <linux/mm.h>
  33 #include <linux/fs.h>
  34
  35 struct linux_binprm;
  36 struct cred;
  37 struct rlimit;
  38 struct kernel_siginfo;
  39 struct sembuf;
  40 struct kern_ipc_perm;
  41 struct audit_context;
  42 struct super_block;
  43 struct inode;
  44 struct dentry;
  45 struct file;
  46 struct vfsmount;
  47 struct path;
  48 struct qstr;
  49 struct iattr;
  50 struct fown_struct;
  51 struct file_operations;
  52 struct msg_msg;
  53 struct xattr;
  54 struct xfrm_sec_ctx;
  55 struct mm_struct;
  56
  57 /* Default (no) options for the capable function */
  58 #define CAP_OPT_NONE 0x0
  59 /* If capable should audit the security request */
  60 #define CAP_OPT_NOAUDIT BIT(1)
  61 /* If capable is being called by a setid function */
  62 #define CAP_OPT_INSETID BIT(2)
  63
  64 /* LSM Agnostic defines for sb_set_mnt_opts */
  65 #define SECURITY_LSM_NATIVE_LABELS      1
  66
  67 struct ctl_table;
  68 struct audit_krule;
  69 struct user_namespace;
  70 struct timezone;
  71
  72 enum lsm_event {
  73         LSM_POLICY_CHANGE,
  74 };
  75
  76 /* These functions are in security/commoncap.c */
  77 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
  78                        int cap, unsigned int opts);
  79 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
  80 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
  81 extern int cap_ptrace_traceme(struct task_struct *parent);
  82 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
  83 extern int cap_capset(struct cred *new, const struct cred *old,
  84                       const kernel_cap_t *effective,
  85                       const kernel_cap_t *inheritable,
  86                       const kernel_cap_t *permitted);
  87 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
  88 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
  89                               const void *value, size_t size, int flags);
  90 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
  91 extern int cap_inode_need_killpriv(struct dentry *dentry);
  92 extern int cap_inode_killpriv(struct dentry *dentry);
  93 extern int cap_inode_getsecurity(struct inode *inode, const char *name,
  94                                  void **buffer, bool alloc);
  95 extern int cap_mmap_addr(unsigned long addr);
  96 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
  97                          unsigned long prot, unsigned long flags);
  98 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
  99 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 100                           unsigned long arg4, unsigned long arg5);
 101 extern int cap_task_setscheduler(struct task_struct *p);
 102 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
 103 extern int cap_task_setnice(struct task_struct *p, int nice);
 104 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
 105
 106 struct msghdr;
 107 struct sk_buff;
 108 struct sock;
 109 struct sockaddr;
 110 struct socket;
 111 struct flowi;
 112 struct dst_entry;
 113 struct xfrm_selector;
 114 struct xfrm_policy;
 115 struct xfrm_state;
 116 struct xfrm_user_sec_ctx;
 117 struct seq_file;
 118 struct sctp_endpoint;
 119
 120 #ifdef CONFIG_MMU
 121 extern unsigned long mmap_min_addr;
 122 extern unsigned long dac_mmap_min_addr;
 123 #else
 124 #define mmap_min_addr           0UL
 125 #define dac_mmap_min_addr       0UL
 126 #endif
 127
 128 /*
 129  * Values used in the task_security_ops calls
 130  */
 131 /* setuid or setgid, id0 == uid or gid */
 132 #define LSM_SETID_ID    1
 133
 134 /* setreuid or setregid, id0 == real, id1 == eff */
 135 #define LSM_SETID_RE    2
 136
 137 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
 138 #define LSM_SETID_RES   4
 139
 140 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
 141 #define LSM_SETID_FS    8
 142
 143 /* Flags for security_task_prlimit(). */
 144 #define LSM_PRLIMIT_READ  1
 145 #define LSM_PRLIMIT_WRITE 2
 146
 147 /* forward declares to avoid warnings */
 148 struct sched_param;
 149 struct request_sock;
 150
 151 /* bprm->unsafe reasons */
 152 #define LSM_UNSAFE_SHARE        1
 153 #define LSM_UNSAFE_PTRACE       2
 154 #define LSM_UNSAFE_NO_NEW_PRIVS 4
 155
 156 #ifdef CONFIG_MMU
 157 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
 158                                  void __user *buffer, size_t *lenp, loff_t *ppos);
 159 #endif
 160
 161 /* security_inode_init_security callback function to write xattrs */
 162 typedef int (*initxattrs) (struct inode *inode,
 163                            const struct xattr *xattr_array, void *fs_data);
 164
 165
 166 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
 167 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
 168 #define __data_id_stringify(dummy, str) #str,
 169
 170 enum kernel_load_data_id {
 171         __kernel_read_file_id(__data_id_enumify)
 172 };
 173
 174 static const char * const kernel_load_data_str[] = {
 175         __kernel_read_file_id(__data_id_stringify)
 176 };
 177
 178 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
 179 {
 180         if ((unsigned)id >= LOADING_MAX_ID)
 181                 return kernel_load_data_str[LOADING_UNKNOWN];
 182
 183         return kernel_load_data_str[id];
 184 }
 185
 186 #ifdef CONFIG_SECURITY
 187
 188 int call_lsm_notifier(enum lsm_event event, void *data);
 189 int register_lsm_notifier(struct notifier_block *nb);
 190 int unregister_lsm_notifier(struct notifier_block *nb);
 191
 192 /* prototypes */
 193 extern int security_init(void);
 194
 195 /* Security operations */
 196 int security_binder_set_context_mgr(struct task_struct *mgr);
 197 int security_binder_transaction(struct task_struct *from,
 198                                 struct task_struct *to);
 199 int security_binder_transfer_binder(struct task_struct *from,
 200                                     struct task_struct *to);
 201 int security_binder_transfer_file(struct task_struct *from,
 202                                   struct task_struct *to, struct file *file);
 203 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
 204 int security_ptrace_traceme(struct task_struct *parent);
 205 int security_capget(struct task_struct *target,
 206                     kernel_cap_t *effective,
 207                     kernel_cap_t *inheritable,
 208                     kernel_cap_t *permitted);
 209 int security_capset(struct cred *new, const struct cred *old,
 210                     const kernel_cap_t *effective,
 211                     const kernel_cap_t *inheritable,
 212                     const kernel_cap_t *permitted);
 213 int security_capable(const struct cred *cred,
 214                        struct user_namespace *ns,
 215                        int cap,
 216                        unsigned int opts);
 217 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
 218 int security_quota_on(struct dentry *dentry);
 219 int security_syslog(int type);
 220 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
 221 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
 222 int security_bprm_set_creds(struct linux_binprm *bprm);
 223 int security_bprm_check(struct linux_binprm *bprm);
 224 void security_bprm_committing_creds(struct linux_binprm *bprm);
 225 void security_bprm_committed_creds(struct linux_binprm *bprm);
 226 int security_sb_alloc(struct super_block *sb);
 227 void security_sb_free(struct super_block *sb);
 228 void security_free_mnt_opts(void **mnt_opts);
 229 int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
 230 int security_sb_remount(struct super_block *sb, void *mnt_opts);
 231 int security_sb_kern_mount(struct super_block *sb);
 232 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
 233 int security_sb_statfs(struct dentry *dentry);
 234 int security_sb_mount(const char *dev_name, const struct path *path,
 235                       const char *type, unsigned long flags, void *data);
 236 int security_sb_umount(struct vfsmount *mnt, int flags);
 237 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
 238 int security_sb_set_mnt_opts(struct super_block *sb,
 239                                 void *mnt_opts,
 240                                 unsigned long kern_flags,
 241                                 unsigned long *set_kern_flags);
 242 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 243                                 struct super_block *newsb,
 244                                 unsigned long kern_flags,
 245                                 unsigned long *set_kern_flags);
 246 int security_add_mnt_opt(const char *option, const char *val,
 247                                 int len, void **mnt_opts);
 248 int security_dentry_init_security(struct dentry *dentry, int mode,
 249                                         const struct qstr *name, void **ctx,
 250                                         u32 *ctxlen);
 251 int security_dentry_create_files_as(struct dentry *dentry, int mode,
 252                                         struct qstr *name,
 253                                         const struct cred *old,
 254                                         struct cred *new);
 255
 256 int security_inode_alloc(struct inode *inode);
 257 void security_inode_free(struct inode *inode);
 258 int security_inode_init_security(struct inode *inode, struct inode *dir,
 259                                  const struct qstr *qstr,
 260                                  initxattrs initxattrs, void *fs_data);
 261 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
 262                                      const struct qstr *qstr, const char **name,
 263                                      void **value, size_t *len);
 264 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
 265 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 266                          struct dentry *new_dentry);
 267 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
 268 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 269                            const char *old_name);
 270 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 271 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
 272 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
 273 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 274                           struct inode *new_dir, struct dentry *new_dentry,
 275                           unsigned int flags);
 276 int security_inode_readlink(struct dentry *dentry);
 277 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
 278                                bool rcu);
 279 int security_inode_permission(struct inode *inode, int mask);
 280 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
 281 int security_inode_getattr(const struct path *path);
 282 int security_inode_setxattr(struct dentry *dentry, const char *name,
 283                             const void *value, size_t size, int flags);
 284 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 285                                   const void *value, size_t size, int flags);
 286 int security_inode_getxattr(struct dentry *dentry, const char *name);
 287 int security_inode_listxattr(struct dentry *dentry);
 288 int security_inode_removexattr(struct dentry *dentry, const char *name);
 289 int security_inode_need_killpriv(struct dentry *dentry);
 290 int security_inode_killpriv(struct dentry *dentry);
 291 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
 292 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
 293 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
 294 void security_inode_getsecid(struct inode *inode, u32 *secid);
 295 int security_inode_copy_up(struct dentry *src, struct cred **new);
 296 int security_inode_copy_up_xattr(const char *name);
 297 int security_file_permission(struct file *file, int mask);
 298 int security_file_alloc(struct file *file);
 299 void security_file_free(struct file *file);
 300 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 301 int security_mmap_file(struct file *file, unsigned long prot,
 302                         unsigned long flags);
 303 int security_mmap_addr(unsigned long addr);
 304 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 305                            unsigned long prot);
 306 int security_file_lock(struct file *file, unsigned int cmd);
 307 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
 308 void security_file_set_fowner(struct file *file);
 309 int security_file_send_sigiotask(struct task_struct *tsk,
 310                                  struct fown_struct *fown, int sig);
 311 int security_file_receive(struct file *file);
 312 int security_file_open(struct file *file);
 313 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
 314 void security_task_free(struct task_struct *task);
 315 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
 316 void security_cred_free(struct cred *cred);
 317 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
 318 void security_transfer_creds(struct cred *new, const struct cred *old);
 319 void security_cred_getsecid(const struct cred *c, u32 *secid);
 320 int security_kernel_act_as(struct cred *new, u32 secid);
 321 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
 322 int security_kernel_module_request(char *kmod_name);
 323 int security_kernel_load_data(enum kernel_load_data_id id);
 324 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
 325 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
 326                                    enum kernel_read_file_id id);
 327 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 328                              int flags);
 329 int security_task_setpgid(struct task_struct *p, pid_t pgid);
 330 int security_task_getpgid(struct task_struct *p);
 331 int security_task_getsid(struct task_struct *p);
 332 void security_task_getsecid(struct task_struct *p, u32 *secid);
 333 int security_task_setnice(struct task_struct *p, int nice);
 334 int security_task_setioprio(struct task_struct *p, int ioprio);
 335 int security_task_getioprio(struct task_struct *p);
 336 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
 337                           unsigned int flags);
 338 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 339                 struct rlimit *new_rlim);
 340 int security_task_setscheduler(struct task_struct *p);
 341 int security_task_getscheduler(struct task_struct *p);
 342 int security_task_movememory(struct task_struct *p);
 343 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
 344                         int sig, const struct cred *cred);
 345 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 346                         unsigned long arg4, unsigned long arg5);
 347 void security_task_to_inode(struct task_struct *p, struct inode *inode);
 348 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
 349 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
 350 int security_msg_msg_alloc(struct msg_msg *msg);
 351 void security_msg_msg_free(struct msg_msg *msg);
 352 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
 353 void security_msg_queue_free(struct kern_ipc_perm *msq);
 354 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
 355 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
 356 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
 357                               struct msg_msg *msg, int msqflg);
 358 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
 359                               struct task_struct *target, long type, int mode);
 360 int security_shm_alloc(struct kern_ipc_perm *shp);
 361 void security_shm_free(struct kern_ipc_perm *shp);
 362 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
 363 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
 364 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
 365 int security_sem_alloc(struct kern_ipc_perm *sma);
 366 void security_sem_free(struct kern_ipc_perm *sma);
 367 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
 368 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
 369 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
 370                         unsigned nsops, int alter);
 371 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
 372 int security_getprocattr(struct task_struct *p, const char *lsm, char *name,
 373                          char **value);
 374 int security_setprocattr(const char *lsm, const char *name, void *value,
 375                          size_t size);
 376 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
 377 int security_ismaclabel(const char *name);
 378 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
 379 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
 380 void security_release_secctx(char *secdata, u32 seclen);
 381
 382 void security_inode_invalidate_secctx(struct inode *inode);
 383 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
 384 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
 385 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
 386 #else /* CONFIG_SECURITY */
 387
 388 static inline int call_lsm_notifier(enum lsm_event event, void *data)
 389 {
 390         return 0;
 391 }
 392
 393 static inline int register_lsm_notifier(struct notifier_block *nb)
 394 {
 395         return 0;
 396 }
 397
 398 static inline  int unregister_lsm_notifier(struct notifier_block *nb)
 399 {
 400         return 0;
 401 }
 402
 403 static inline void security_free_mnt_opts(void **mnt_opts)
 404 {
 405 }
 406
 407 /*
 408  * This is the default capabilities functionality.  Most of these functions
 409  * are just stubbed out, but a few must call the proper capable code.
 410  */
 411
 412 static inline int security_init(void)
 413 {
 414         return 0;
 415 }
 416
 417 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
 418 {
 419         return 0;
 420 }
 421
 422 static inline int security_binder_transaction(struct task_struct *from,
 423                                               struct task_struct *to)
 424 {
 425         return 0;
 426 }
 427
 428 static inline int security_binder_transfer_binder(struct task_struct *from,
 429                                                   struct task_struct *to)
 430 {
 431         return 0;
 432 }
 433
 434 static inline int security_binder_transfer_file(struct task_struct *from,
 435                                                 struct task_struct *to,
 436                                                 struct file *file)
 437 {
 438         return 0;
 439 }
 440
 441 static inline int security_ptrace_access_check(struct task_struct *child,
 442                                              unsigned int mode)
 443 {
 444         return cap_ptrace_access_check(child, mode);
 445 }
 446
 447 static inline int security_ptrace_traceme(struct task_struct *parent)
 448 {
 449         return cap_ptrace_traceme(parent);
 450 }
 451
 452 static inline int security_capget(struct task_struct *target,
 453                                    kernel_cap_t *effective,
 454                                    kernel_cap_t *inheritable,
 455                                    kernel_cap_t *permitted)
 456 {
 457         return cap_capget(target, effective, inheritable, permitted);
 458 }
 459
 460 static inline int security_capset(struct cred *new,
 461                                    const struct cred *old,
 462                                    const kernel_cap_t *effective,
 463                                    const kernel_cap_t *inheritable,
 464                                    const kernel_cap_t *permitted)
 465 {
 466         return cap_capset(new, old, effective, inheritable, permitted);
 467 }
 468
 469 static inline int security_capable(const struct cred *cred,
 470                                    struct user_namespace *ns,
 471                                    int cap,
 472                                    unsigned int opts)
 473 {
 474         return cap_capable(cred, ns, cap, opts);
 475 }
 476
 477 static inline int security_quotactl(int cmds, int type, int id,
 478                                      struct super_block *sb)
 479 {
 480         return 0;
 481 }
 482
 483 static inline int security_quota_on(struct dentry *dentry)
 484 {
 485         return 0;
 486 }
 487
 488 static inline int security_syslog(int type)
 489 {
 490         return 0;
 491 }
 492
 493 static inline int security_settime64(const struct timespec64 *ts,
 494                                      const struct timezone *tz)
 495 {
 496         return cap_settime(ts, tz);
 497 }
 498
 499 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 500 {
 501         return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
 502 }
 503
 504 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
 505 {
 506         return cap_bprm_set_creds(bprm);
 507 }
 508
 509 static inline int security_bprm_check(struct linux_binprm *bprm)
 510 {
 511         return 0;
 512 }
 513
 514 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
 515 {
 516 }
 517
 518 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
 519 {
 520 }
 521
 522 static inline int security_sb_alloc(struct super_block *sb)
 523 {
 524         return 0;
 525 }
 526
 527 static inline void security_sb_free(struct super_block *sb)
 528 { }
 529
 530 static inline int security_sb_eat_lsm_opts(char *options,
 531                                            void **mnt_opts)
 532 {
 533         return 0;
 534 }
 535
 536 static inline int security_sb_remount(struct super_block *sb,
 537                                       void *mnt_opts)
 538 {
 539         return 0;
 540 }
 541
 542 static inline int security_sb_kern_mount(struct super_block *sb)
 543 {
 544         return 0;
 545 }
 546
 547 static inline int security_sb_show_options(struct seq_file *m,
 548                                            struct super_block *sb)
 549 {
 550         return 0;
 551 }
 552
 553 static inline int security_sb_statfs(struct dentry *dentry)
 554 {
 555         return 0;
 556 }
 557
 558 static inline int security_sb_mount(const char *dev_name, const struct path *path,
 559                                     const char *type, unsigned long flags,
 560                                     void *data)
 561 {
 562         return 0;
 563 }
 564
 565 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
 566 {
 567         return 0;
 568 }
 569
 570 static inline int security_sb_pivotroot(const struct path *old_path,
 571                                         const struct path *new_path)
 572 {
 573         return 0;
 574 }
 575
 576 static inline int security_sb_set_mnt_opts(struct super_block *sb,
 577                                            void *mnt_opts,
 578                                            unsigned long kern_flags,
 579                                            unsigned long *set_kern_flags)
 580 {
 581         return 0;
 582 }
 583
 584 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 585                                               struct super_block *newsb,
 586                                               unsigned long kern_flags,
 587                                               unsigned long *set_kern_flags)
 588 {
 589         return 0;
 590 }
 591
 592 static inline int security_add_mnt_opt(const char *option, const char *val,
 593                                         int len, void **mnt_opts)
 594 {
 595         return 0;
 596 }
 597
 598 static inline int security_inode_alloc(struct inode *inode)
 599 {
 600         return 0;
 601 }
 602
 603 static inline void security_inode_free(struct inode *inode)
 604 { }
 605
 606 static inline int security_dentry_init_security(struct dentry *dentry,
 607                                                  int mode,
 608                                                  const struct qstr *name,
 609                                                  void **ctx,
 610                                                  u32 *ctxlen)
 611 {
 612         return -EOPNOTSUPP;
 613 }
 614
 615 static inline int security_dentry_create_files_as(struct dentry *dentry,
 616                                                   int mode, struct qstr *name,
 617                                                   const struct cred *old,
 618                                                   struct cred *new)
 619 {
 620         return 0;
 621 }
 622
 623
 624 static inline int security_inode_init_security(struct inode *inode,
 625                                                 struct inode *dir,
 626                                                 const struct qstr *qstr,
 627                                                 const initxattrs xattrs,
 628                                                 void *fs_data)
 629 {
 630         return 0;
 631 }
 632
 633 static inline int security_old_inode_init_security(struct inode *inode,
 634                                                    struct inode *dir,
 635                                                    const struct qstr *qstr,
 636                                                    const char **name,
 637                                                    void **value, size_t *len)
 638 {
 639         return -EOPNOTSUPP;
 640 }
 641
 642 static inline int security_inode_create(struct inode *dir,
 643                                          struct dentry *dentry,
 644                                          umode_t mode)
 645 {
 646         return 0;
 647 }
 648
 649 static inline int security_inode_link(struct dentry *old_dentry,
 650                                        struct inode *dir,
 651                                        struct dentry *new_dentry)
 652 {
 653         return 0;
 654 }
 655
 656 static inline int security_inode_unlink(struct inode *dir,
 657                                          struct dentry *dentry)
 658 {
 659         return 0;
 660 }
 661
 662 static inline int security_inode_symlink(struct inode *dir,
 663                                           struct dentry *dentry,
 664                                           const char *old_name)
 665 {
 666         return 0;
 667 }
 668
 669 static inline int security_inode_mkdir(struct inode *dir,
 670                                         struct dentry *dentry,
 671                                         int mode)
 672 {
 673         return 0;
 674 }
 675
 676 static inline int security_inode_rmdir(struct inode *dir,
 677                                         struct dentry *dentry)
 678 {
 679         return 0;
 680 }
 681
 682 static inline int security_inode_mknod(struct inode *dir,
 683                                         struct dentry *dentry,
 684                                         int mode, dev_t dev)
 685 {
 686         return 0;
 687 }
 688
 689 static inline int security_inode_rename(struct inode *old_dir,
 690                                          struct dentry *old_dentry,
 691                                          struct inode *new_dir,
 692                                          struct dentry *new_dentry,
 693                                          unsigned int flags)
 694 {
 695         return 0;
 696 }
 697
 698 static inline int security_inode_readlink(struct dentry *dentry)
 699 {
 700         return 0;
 701 }
 702
 703 static inline int security_inode_follow_link(struct dentry *dentry,
 704                                              struct inode *inode,
 705                                              bool rcu)
 706 {
 707         return 0;
 708 }
 709
 710 static inline int security_inode_permission(struct inode *inode, int mask)
 711 {
 712         return 0;
 713 }
 714
 715 static inline int security_inode_setattr(struct dentry *dentry,
 716                                           struct iattr *attr)
 717 {
 718         return 0;
 719 }
 720
 721 static inline int security_inode_getattr(const struct path *path)
 722 {
 723         return 0;
 724 }
 725
 726 static inline int security_inode_setxattr(struct dentry *dentry,
 727                 const char *name, const void *value, size_t size, int flags)
 728 {
 729         return cap_inode_setxattr(dentry, name, value, size, flags);
 730 }
 731
 732 static inline void security_inode_post_setxattr(struct dentry *dentry,
 733                 const char *name, const void *value, size_t size, int flags)
 734 { }
 735
 736 static inline int security_inode_getxattr(struct dentry *dentry,
 737                         const char *name)
 738 {
 739         return 0;
 740 }
 741
 742 static inline int security_inode_listxattr(struct dentry *dentry)
 743 {
 744         return 0;
 745 }
 746
 747 static inline int security_inode_removexattr(struct dentry *dentry,
 748                         const char *name)
 749 {
 750         return cap_inode_removexattr(dentry, name);
 751 }
 752
 753 static inline int security_inode_need_killpriv(struct dentry *dentry)
 754 {
 755         return cap_inode_need_killpriv(dentry);
 756 }
 757
 758 static inline int security_inode_killpriv(struct dentry *dentry)
 759 {
 760         return cap_inode_killpriv(dentry);
 761 }
 762
 763 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
 764 {
 765         return -EOPNOTSUPP;
 766 }
 767
 768 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 769 {
 770         return -EOPNOTSUPP;
 771 }
 772
 773 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 774 {
 775         return 0;
 776 }
 777
 778 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
 779 {
 780         *secid = 0;
 781 }
 782
 783 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
 784 {
 785         return 0;
 786 }
 787
 788 static inline int security_inode_copy_up_xattr(const char *name)
 789 {
 790         return -EOPNOTSUPP;
 791 }
 792
 793 static inline int security_file_permission(struct file *file, int mask)
 794 {
 795         return 0;
 796 }
 797
 798 static inline int security_file_alloc(struct file *file)
 799 {
 800         return 0;
 801 }
 802
 803 static inline void security_file_free(struct file *file)
 804 { }
 805
 806 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
 807                                       unsigned long arg)
 808 {
 809         return 0;
 810 }
 811
 812 static inline int security_mmap_file(struct file *file, unsigned long prot,
 813                                      unsigned long flags)
 814 {
 815         return 0;
 816 }
 817
 818 static inline int security_mmap_addr(unsigned long addr)
 819 {
 820         return cap_mmap_addr(addr);
 821 }
 822
 823 static inline int security_file_mprotect(struct vm_area_struct *vma,
 824                                          unsigned long reqprot,
 825                                          unsigned long prot)
 826 {
 827         return 0;
 828 }
 829
 830 static inline int security_file_lock(struct file *file, unsigned int cmd)
 831 {
 832         return 0;
 833 }
 834
 835 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
 836                                       unsigned long arg)
 837 {
 838         return 0;
 839 }
 840
 841 static inline void security_file_set_fowner(struct file *file)
 842 {
 843         return;
 844 }
 845
 846 static inline int security_file_send_sigiotask(struct task_struct *tsk,
 847                                                struct fown_struct *fown,
 848                                                int sig)
 849 {
 850         return 0;
 851 }
 852
 853 static inline int security_file_receive(struct file *file)
 854 {
 855         return 0;
 856 }
 857
 858 static inline int security_file_open(struct file *file)
 859 {
 860         return 0;
 861 }
 862
 863 static inline int security_task_alloc(struct task_struct *task,
 864                                       unsigned long clone_flags)
 865 {
 866         return 0;
 867 }
 868
 869 static inline void security_task_free(struct task_struct *task)
 870 { }
 871
 872 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 873 {
 874         return 0;
 875 }
 876
 877 static inline void security_cred_free(struct cred *cred)
 878 { }
 879
 880 static inline int security_prepare_creds(struct cred *new,
 881                                          const struct cred *old,
 882                                          gfp_t gfp)
 883 {
 884         return 0;
 885 }
 886
 887 static inline void security_transfer_creds(struct cred *new,
 888                                            const struct cred *old)
 889 {
 890 }
 891
 892 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
 893 {
 894         return 0;
 895 }
 896
 897 static inline int security_kernel_create_files_as(struct cred *cred,
 898                                                   struct inode *inode)
 899 {
 900         return 0;
 901 }
 902
 903 static inline int security_kernel_module_request(char *kmod_name)
 904 {
 905         return 0;
 906 }
 907
 908 static inline int security_kernel_load_data(enum kernel_load_data_id id)
 909 {
 910         return 0;
 911 }
 912
 913 static inline int security_kernel_read_file(struct file *file,
 914                                             enum kernel_read_file_id id)
 915 {
 916         return 0;
 917 }
 918
 919 static inline int security_kernel_post_read_file(struct file *file,
 920                                                  char *buf, loff_t size,
 921                                                  enum kernel_read_file_id id)
 922 {
 923         return 0;
 924 }
 925
 926 static inline int security_task_fix_setuid(struct cred *new,
 927                                            const struct cred *old,
 928                                            int flags)
 929 {
 930         return cap_task_fix_setuid(new, old, flags);
 931 }
 932
 933 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
 934 {
 935         return 0;
 936 }
 937
 938 static inline int security_task_getpgid(struct task_struct *p)
 939 {
 940         return 0;
 941 }
 942
 943 static inline int security_task_getsid(struct task_struct *p)
 944 {
 945         return 0;
 946 }
 947
 948 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
 949 {
 950         *secid = 0;
 951 }
 952
 953 static inline int security_task_setnice(struct task_struct *p, int nice)
 954 {
 955         return cap_task_setnice(p, nice);
 956 }
 957
 958 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
 959 {
 960         return cap_task_setioprio(p, ioprio);
 961 }
 962
 963 static inline int security_task_getioprio(struct task_struct *p)
 964 {
 965         return 0;
 966 }
 967
 968 static inline int security_task_prlimit(const struct cred *cred,
 969                                         const struct cred *tcred,
 970                                         unsigned int flags)
 971 {
 972         return 0;
 973 }
 974
 975 static inline int security_task_setrlimit(struct task_struct *p,
 976                                           unsigned int resource,
 977                                           struct rlimit *new_rlim)
 978 {
 979         return 0;
 980 }
 981
 982 static inline int security_task_setscheduler(struct task_struct *p)
 983 {
 984         return cap_task_setscheduler(p);
 985 }
 986
 987 static inline int security_task_getscheduler(struct task_struct *p)
 988 {
 989         return 0;
 990 }
 991
 992 static inline int security_task_movememory(struct task_struct *p)
 993 {
 994         return 0;
 995 }
 996
 997 static inline int security_task_kill(struct task_struct *p,
 998                                      struct kernel_siginfo *info, int sig,
 999                                      const struct cred *cred)
1000 {
1001         return 0;
1002 }
1003
1004 static inline int security_task_prctl(int option, unsigned long arg2,
1005                                       unsigned long arg3,
1006                                       unsigned long arg4,
1007                                       unsigned long arg5)
1008 {
1009         return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1010 }
1011
1012 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1013 { }
1014
1015 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1016                                           short flag)
1017 {
1018         return 0;
1019 }
1020
1021 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1022 {
1023         *secid = 0;
1024 }
1025
1026 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1027 {
1028         return 0;
1029 }
1030
1031 static inline void security_msg_msg_free(struct msg_msg *msg)
1032 { }
1033
1034 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1035 {
1036         return 0;
1037 }
1038
1039 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1040 { }
1041
1042 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1043                                                int msqflg)
1044 {
1045         return 0;
1046 }
1047
1048 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1049 {
1050         return 0;
1051 }
1052
1053 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1054                                             struct msg_msg *msg, int msqflg)
1055 {
1056         return 0;
1057 }
1058
1059 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1060                                             struct msg_msg *msg,
1061                                             struct task_struct *target,
1062                                             long type, int mode)
1063 {
1064         return 0;
1065 }
1066
1067 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1068 {
1069         return 0;
1070 }
1071
1072 static inline void security_shm_free(struct kern_ipc_perm *shp)
1073 { }
1074
1075 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1076                                          int shmflg)
1077 {
1078         return 0;
1079 }
1080
1081 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1082 {
1083         return 0;
1084 }
1085
1086 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1087                                      char __user *shmaddr, int shmflg)
1088 {
1089         return 0;
1090 }
1091
1092 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1093 {
1094         return 0;
1095 }
1096
1097 static inline void security_sem_free(struct kern_ipc_perm *sma)
1098 { }
1099
1100 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1101 {
1102         return 0;
1103 }
1104
1105 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1106 {
1107         return 0;
1108 }
1109
1110 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1111                                      struct sembuf *sops, unsigned nsops,
1112                                      int alter)
1113 {
1114         return 0;
1115 }
1116
1117 static inline void security_d_instantiate(struct dentry *dentry,
1118                                           struct inode *inode)
1119 { }
1120
1121 static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1122                                        char *name, char **value)
1123 {
1124         return -EINVAL;
1125 }
1126
1127 static inline int security_setprocattr(const char *lsm, char *name,
1128                                        void *value, size_t size)
1129 {
1130         return -EINVAL;
1131 }
1132
1133 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1134 {
1135         return 0;
1136 }
1137
1138 static inline int security_ismaclabel(const char *name)
1139 {
1140         return 0;
1141 }
1142
1143 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1144 {
1145         return -EOPNOTSUPP;
1146 }
1147
1148 static inline int security_secctx_to_secid(const char *secdata,
1149                                            u32 seclen,
1150                                            u32 *secid)
1151 {
1152         return -EOPNOTSUPP;
1153 }
1154
1155 static inline void security_release_secctx(char *secdata, u32 seclen)
1156 {
1157 }
1158
1159 static inline void security_inode_invalidate_secctx(struct inode *inode)
1160 {
1161 }
1162
1163 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1164 {
1165         return -EOPNOTSUPP;
1166 }
1167 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1168 {
1169         return -EOPNOTSUPP;
1170 }
1171 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1172 {
1173         return -EOPNOTSUPP;
1174 }
1175 #endif  /* CONFIG_SECURITY */
1176
1177 #ifdef CONFIG_SECURITY_NETWORK
1178
1179 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1180 int security_unix_may_send(struct socket *sock,  struct socket *other);
1181 int security_socket_create(int family, int type, int protocol, int kern);
1182 int security_socket_post_create(struct socket *sock, int family,
1183                                 int type, int protocol, int kern);
1184 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1185 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1186 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1187 int security_socket_listen(struct socket *sock, int backlog);
1188 int security_socket_accept(struct socket *sock, struct socket *newsock);
1189 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1190 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1191                             int size, int flags);
1192 int security_socket_getsockname(struct socket *sock);
1193 int security_socket_getpeername(struct socket *sock);
1194 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1195 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1196 int security_socket_shutdown(struct socket *sock, int how);
1197 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1198 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1199                                       int __user *optlen, unsigned len);
1200 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1201 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1202 void security_sk_free(struct sock *sk);
1203 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1204 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1205 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1206 void security_sock_graft(struct sock*sk, struct socket *parent);
1207 int security_inet_conn_request(struct sock *sk,
1208                         struct sk_buff *skb, struct request_sock *req);
1209 void security_inet_csk_clone(struct sock *newsk,
1210                         const struct request_sock *req);
1211 void security_inet_conn_established(struct sock *sk,
1212                         struct sk_buff *skb);
1213 int security_secmark_relabel_packet(u32 secid);
1214 void security_secmark_refcount_inc(void);
1215 void security_secmark_refcount_dec(void);
1216 int security_tun_dev_alloc_security(void **security);
1217 void security_tun_dev_free_security(void *security);
1218 int security_tun_dev_create(void);
1219 int security_tun_dev_attach_queue(void *security);
1220 int security_tun_dev_attach(struct sock *sk, void *security);
1221 int security_tun_dev_open(void *security);
1222 int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb);
1223 int security_sctp_bind_connect(struct sock *sk, int optname,
1224                                struct sockaddr *address, int addrlen);
1225 void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk,
1226                             struct sock *newsk);
1227
1228 #else   /* CONFIG_SECURITY_NETWORK */
1229 static inline int security_unix_stream_connect(struct sock *sock,
1230                                                struct sock *other,
1231                                                struct sock *newsk)
1232 {
1233         return 0;
1234 }
1235
1236 static inline int security_unix_may_send(struct socket *sock,
1237                                          struct socket *other)
1238 {
1239         return 0;
1240 }
1241
1242 static inline int security_socket_create(int family, int type,
1243                                          int protocol, int kern)
1244 {
1245         return 0;
1246 }
1247
1248 static inline int security_socket_post_create(struct socket *sock,
1249                                               int family,
1250                                               int type,
1251                                               int protocol, int kern)
1252 {
1253         return 0;
1254 }
1255
1256 static inline int security_socket_socketpair(struct socket *socka,
1257                                              struct socket *sockb)
1258 {
1259         return 0;
1260 }
1261
1262 static inline int security_socket_bind(struct socket *sock,
1263                                        struct sockaddr *address,
1264                                        int addrlen)
1265 {
1266         return 0;
1267 }
1268
1269 static inline int security_socket_connect(struct socket *sock,
1270                                           struct sockaddr *address,
1271                                           int addrlen)
1272 {
1273         return 0;
1274 }
1275
1276 static inline int security_socket_listen(struct socket *sock, int backlog)
1277 {
1278         return 0;
1279 }
1280
1281 static inline int security_socket_accept(struct socket *sock,
1282                                          struct socket *newsock)
1283 {
1284         return 0;
1285 }
1286
1287 static inline int security_socket_sendmsg(struct socket *sock,
1288                                           struct msghdr *msg, int size)
1289 {
1290         return 0;
1291 }
1292
1293 static inline int security_socket_recvmsg(struct socket *sock,
1294                                           struct msghdr *msg, int size,
1295                                           int flags)
1296 {
1297         return 0;
1298 }
1299
1300 static inline int security_socket_getsockname(struct socket *sock)
1301 {
1302         return 0;
1303 }
1304
1305 static inline int security_socket_getpeername(struct socket *sock)
1306 {
1307         return 0;
1308 }
1309
1310 static inline int security_socket_getsockopt(struct socket *sock,
1311                                              int level, int optname)
1312 {
1313         return 0;
1314 }
1315
1316 static inline int security_socket_setsockopt(struct socket *sock,
1317                                              int level, int optname)
1318 {
1319         return 0;
1320 }
1321
1322 static inline int security_socket_shutdown(struct socket *sock, int how)
1323 {
1324         return 0;
1325 }
1326 static inline int security_sock_rcv_skb(struct sock *sk,
1327                                         struct sk_buff *skb)
1328 {
1329         return 0;
1330 }
1331
1332 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1333                                                     int __user *optlen, unsigned len)
1334 {
1335         return -ENOPROTOOPT;
1336 }
1337
1338 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1339 {
1340         return -ENOPROTOOPT;
1341 }
1342
1343 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1344 {
1345         return 0;
1346 }
1347
1348 static inline void security_sk_free(struct sock *sk)
1349 {
1350 }
1351
1352 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1353 {
1354 }
1355
1356 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1357 {
1358 }
1359
1360 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1361 {
1362 }
1363
1364 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1365 {
1366 }
1367
1368 static inline int security_inet_conn_request(struct sock *sk,
1369                         struct sk_buff *skb, struct request_sock *req)
1370 {
1371         return 0;
1372 }
1373
1374 static inline void security_inet_csk_clone(struct sock *newsk,
1375                         const struct request_sock *req)
1376 {
1377 }
1378
1379 static inline void security_inet_conn_established(struct sock *sk,
1380                         struct sk_buff *skb)
1381 {
1382 }
1383
1384 static inline int security_secmark_relabel_packet(u32 secid)
1385 {
1386         return 0;
1387 }
1388
1389 static inline void security_secmark_refcount_inc(void)
1390 {
1391 }
1392
1393 static inline void security_secmark_refcount_dec(void)
1394 {
1395 }
1396
1397 static inline int security_tun_dev_alloc_security(void **security)
1398 {
1399         return 0;
1400 }
1401
1402 static inline void security_tun_dev_free_security(void *security)
1403 {
1404 }
1405
1406 static inline int security_tun_dev_create(void)
1407 {
1408         return 0;
1409 }
1410
1411 static inline int security_tun_dev_attach_queue(void *security)
1412 {
1413         return 0;
1414 }
1415
1416 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1417 {
1418         return 0;
1419 }
1420
1421 static inline int security_tun_dev_open(void *security)
1422 {
1423         return 0;
1424 }
1425
1426 static inline int security_sctp_assoc_request(struct sctp_endpoint *ep,
1427                                               struct sk_buff *skb)
1428 {
1429         return 0;
1430 }
1431
1432 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1433                                              struct sockaddr *address,
1434                                              int addrlen)
1435 {
1436         return 0;
1437 }
1438
1439 static inline void security_sctp_sk_clone(struct sctp_endpoint *ep,
1440                                           struct sock *sk,
1441                                           struct sock *newsk)
1442 {
1443 }
1444 #endif  /* CONFIG_SECURITY_NETWORK */
1445
1446 #ifdef CONFIG_SECURITY_INFINIBAND
1447 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1448 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1449 int security_ib_alloc_security(void **sec);
1450 void security_ib_free_security(void *sec);
1451 #else   /* CONFIG_SECURITY_INFINIBAND */
1452 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1453 {
1454         return 0;
1455 }
1456
1457 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1458 {
1459         return 0;
1460 }
1461
1462 static inline int security_ib_alloc_security(void **sec)
1463 {
1464         return 0;
1465 }
1466
1467 static inline void security_ib_free_security(void *sec)
1468 {
1469 }
1470 #endif  /* CONFIG_SECURITY_INFINIBAND */
1471
1472 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1473
1474 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1475                                struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1476 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1477 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1478 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1479 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1480 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1481                                       struct xfrm_sec_ctx *polsec, u32 secid);
1482 int security_xfrm_state_delete(struct xfrm_state *x);
1483 void security_xfrm_state_free(struct xfrm_state *x);
1484 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1485 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1486                                        struct xfrm_policy *xp,
1487                                        const struct flowi *fl);
1488 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1489 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1490
1491 #else   /* CONFIG_SECURITY_NETWORK_XFRM */
1492
1493 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1494                                              struct xfrm_user_sec_ctx *sec_ctx,
1495                                              gfp_t gfp)
1496 {
1497         return 0;
1498 }
1499
1500 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1501 {
1502         return 0;
1503 }
1504
1505 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1506 {
1507 }
1508
1509 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1510 {
1511         return 0;
1512 }
1513
1514 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1515                                         struct xfrm_user_sec_ctx *sec_ctx)
1516 {
1517         return 0;
1518 }
1519
1520 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1521                                         struct xfrm_sec_ctx *polsec, u32 secid)
1522 {
1523         return 0;
1524 }
1525
1526 static inline void security_xfrm_state_free(struct xfrm_state *x)
1527 {
1528 }
1529
1530 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1531 {
1532         return 0;
1533 }
1534
1535 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1536 {
1537         return 0;
1538 }
1539
1540 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1541                         struct xfrm_policy *xp, const struct flowi *fl)
1542 {
1543         return 1;
1544 }
1545
1546 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1547 {
1548         return 0;
1549 }
1550
1551 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1552 {
1553 }
1554
1555 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1556
1557 #ifdef CONFIG_SECURITY_PATH
1558 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1559 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1560 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1561 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1562                         unsigned int dev);
1563 int security_path_truncate(const struct path *path);
1564 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1565                           const char *old_name);
1566 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1567                        struct dentry *new_dentry);
1568 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1569                          const struct path *new_dir, struct dentry *new_dentry,
1570                          unsigned int flags);
1571 int security_path_chmod(const struct path *path, umode_t mode);
1572 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1573 int security_path_chroot(const struct path *path);
1574 #else   /* CONFIG_SECURITY_PATH */
1575 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1576 {
1577         return 0;
1578 }
1579
1580 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1581                                       umode_t mode)
1582 {
1583         return 0;
1584 }
1585
1586 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1587 {
1588         return 0;
1589 }
1590
1591 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1592                                       umode_t mode, unsigned int dev)
1593 {
1594         return 0;
1595 }
1596
1597 static inline int security_path_truncate(const struct path *path)
1598 {
1599         return 0;
1600 }
1601
1602 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1603                                         const char *old_name)
1604 {
1605         return 0;
1606 }
1607
1608 static inline int security_path_link(struct dentry *old_dentry,
1609                                      const struct path *new_dir,
1610                                      struct dentry *new_dentry)
1611 {
1612         return 0;
1613 }
1614
1615 static inline int security_path_rename(const struct path *old_dir,
1616                                        struct dentry *old_dentry,
1617                                        const struct path *new_dir,
1618                                        struct dentry *new_dentry,
1619                                        unsigned int flags)
1620 {
1621         return 0;
1622 }
1623
1624 static inline int security_path_chmod(const struct path *path, umode_t mode)
1625 {
1626         return 0;
1627 }
1628
1629 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1630 {
1631         return 0;
1632 }
1633
1634 static inline int security_path_chroot(const struct path *path)
1635 {
1636         return 0;
1637 }
1638 #endif  /* CONFIG_SECURITY_PATH */
1639
1640 #ifdef CONFIG_KEYS
1641 #ifdef CONFIG_SECURITY
1642
1643 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1644 void security_key_free(struct key *key);
1645 int security_key_permission(key_ref_t key_ref,
1646                             const struct cred *cred, unsigned perm);
1647 int security_key_getsecurity(struct key *key, char **_buffer);
1648
1649 #else
1650
1651 static inline int security_key_alloc(struct key *key,
1652                                      const struct cred *cred,
1653                                      unsigned long flags)
1654 {
1655         return 0;
1656 }
1657
1658 static inline void security_key_free(struct key *key)
1659 {
1660 }
1661
1662 static inline int security_key_permission(key_ref_t key_ref,
1663                                           const struct cred *cred,
1664                                           unsigned perm)
1665 {
1666         return 0;
1667 }
1668
1669 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1670 {
1671         *_buffer = NULL;
1672         return 0;
1673 }
1674
1675 #endif
1676 #endif /* CONFIG_KEYS */
1677
1678 #ifdef CONFIG_AUDIT
1679 #ifdef CONFIG_SECURITY
1680 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1681 int security_audit_rule_known(struct audit_krule *krule);
1682 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1683 void security_audit_rule_free(void *lsmrule);
1684
1685 #else
1686
1687 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1688                                            void **lsmrule)
1689 {
1690         return 0;
1691 }
1692
1693 static inline int security_audit_rule_known(struct audit_krule *krule)
1694 {
1695         return 0;
1696 }
1697
1698 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1699                                             void *lsmrule)
1700 {
1701         return 0;
1702 }
1703
1704 static inline void security_audit_rule_free(void *lsmrule)
1705 { }
1706
1707 #endif /* CONFIG_SECURITY */
1708 #endif /* CONFIG_AUDIT */
1709
1710 #ifdef CONFIG_SECURITYFS
1711
1712 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1713                                              struct dentry *parent, void *data,
1714                                              const struct file_operations *fops);
1715 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1716 struct dentry *securityfs_create_symlink(const char *name,
1717                                          struct dentry *parent,
1718                                          const char *target,
1719                                          const struct inode_operations *iops);
1720 extern void securityfs_remove(struct dentry *dentry);
1721
1722 #else /* CONFIG_SECURITYFS */
1723
1724 static inline struct dentry *securityfs_create_dir(const char *name,
1725                                                    struct dentry *parent)
1726 {
1727         return ERR_PTR(-ENODEV);
1728 }
1729
1730 static inline struct dentry *securityfs_create_file(const char *name,
1731                                                     umode_t mode,
1732                                                     struct dentry *parent,
1733                                                     void *data,
1734                                                     const struct file_operations *fops)
1735 {
1736         return ERR_PTR(-ENODEV);
1737 }
1738
1739 static inline struct dentry *securityfs_create_symlink(const char *name,
1740                                         struct dentry *parent,
1741                                         const char *target,
1742                                         const struct inode_operations *iops)
1743 {
1744         return ERR_PTR(-ENODEV);
1745 }
1746
1747 static inline void securityfs_remove(struct dentry *dentry)
1748 {}
1749
1750 #endif
1751
1752 #ifdef CONFIG_BPF_SYSCALL
1753 union bpf_attr;
1754 struct bpf_map;
1755 struct bpf_prog;
1756 struct bpf_prog_aux;
1757 #ifdef CONFIG_SECURITY
1758 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1759 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
1760 extern int security_bpf_prog(struct bpf_prog *prog);
1761 extern int security_bpf_map_alloc(struct bpf_map *map);
1762 extern void security_bpf_map_free(struct bpf_map *map);
1763 extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
1764 extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
1765 #else
1766 static inline int security_bpf(int cmd, union bpf_attr *attr,
1767                                              unsigned int size)
1768 {
1769         return 0;
1770 }
1771
1772 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
1773 {
1774         return 0;
1775 }
1776
1777 static inline int security_bpf_prog(struct bpf_prog *prog)
1778 {
1779         return 0;
1780 }
1781
1782 static inline int security_bpf_map_alloc(struct bpf_map *map)
1783 {
1784         return 0;
1785 }
1786
1787 static inline void security_bpf_map_free(struct bpf_map *map)
1788 { }
1789
1790 static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
1791 {
1792         return 0;
1793 }
1794
1795 static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
1796 { }
1797 #endif /* CONFIG_SECURITY */
1798 #endif /* CONFIG_BPF_SYSCALL */
1799
1800 #endif /* ! __LINUX_SECURITY_H */
1801