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