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)
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.
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.
22 #ifndef __LINUX_SECURITY_H
23 #define __LINUX_SECURITY_H
26 #include <linux/binfmts.h>
27 #include <linux/signal.h>
28 #include <linux/resource.h>
29 #include <linux/sem.h>
30 #include <linux/shm.h>
31 #include <linux/msg.h>
32 #include <linux/sched.h>
33 #include <linux/key.h>
34 #include <linux/xfrm.h>
37 /* Maximum number of letters for an LSM name string */
38 #define SECURITY_NAME_MAX 10
40 /* If capable should audit the security request */
41 #define SECURITY_CAP_NOAUDIT 0
42 #define SECURITY_CAP_AUDIT 1
48 * These functions are in security/capability.c and are used
49 * as the default capabilities functions
51 extern int cap_capable(struct task_struct *tsk, int cap, int audit);
52 extern int cap_settime(struct timespec *ts, struct timezone *tz);
53 extern int cap_ptrace_may_access(struct task_struct *child, unsigned int mode);
54 extern int cap_ptrace_traceme(struct task_struct *parent);
55 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
56 extern int cap_capset(struct cred *new, const struct cred *old,
57 const kernel_cap_t *effective,
58 const kernel_cap_t *inheritable,
59 const kernel_cap_t *permitted);
60 extern int cap_bprm_set_security(struct linux_binprm *bprm);
61 extern int cap_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
62 extern int cap_bprm_secureexec(struct linux_binprm *bprm);
63 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
64 const void *value, size_t size, int flags);
65 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
66 extern int cap_inode_need_killpriv(struct dentry *dentry);
67 extern int cap_inode_killpriv(struct dentry *dentry);
68 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
69 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
70 unsigned long arg4, unsigned long arg5);
71 extern int cap_task_setscheduler(struct task_struct *p, int policy, struct sched_param *lp);
72 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
73 extern int cap_task_setnice(struct task_struct *p, int nice);
74 extern int cap_syslog(int type);
75 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
87 struct xfrm_user_sec_ctx;
90 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
91 extern int cap_netlink_recv(struct sk_buff *skb, int cap);
93 extern unsigned long mmap_min_addr;
95 * Values used in the task_security_ops calls
97 /* setuid or setgid, id0 == uid or gid */
98 #define LSM_SETID_ID 1
100 /* setreuid or setregid, id0 == real, id1 == eff */
101 #define LSM_SETID_RE 2
103 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
104 #define LSM_SETID_RES 4
106 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
107 #define LSM_SETID_FS 8
109 /* forward declares to avoid warnings */
113 /* bprm_apply_creds unsafe reasons */
114 #define LSM_UNSAFE_SHARE 1
115 #define LSM_UNSAFE_PTRACE 2
116 #define LSM_UNSAFE_PTRACE_CAP 4
118 #ifdef CONFIG_SECURITY
120 struct security_mnt_opts {
126 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
128 opts->mnt_opts = NULL;
129 opts->mnt_opts_flags = NULL;
130 opts->num_mnt_opts = 0;
133 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
137 for (i = 0; i < opts->num_mnt_opts; i++)
138 kfree(opts->mnt_opts[i]);
139 kfree(opts->mnt_opts);
140 opts->mnt_opts = NULL;
141 kfree(opts->mnt_opts_flags);
142 opts->mnt_opts_flags = NULL;
143 opts->num_mnt_opts = 0;
147 * struct security_operations - main security structure
149 * Security module identifier.
152 * A string that acts as a unique identifeir for the LSM with max number
153 * of characters = SECURITY_NAME_MAX.
155 * Security hooks for program execution operations.
157 * @bprm_alloc_security:
158 * Allocate and attach a security structure to the @bprm->security field.
159 * The security field is initialized to NULL when the bprm structure is
161 * @bprm contains the linux_binprm structure to be modified.
162 * Return 0 if operation was successful.
163 * @bprm_free_security:
164 * @bprm contains the linux_binprm structure to be modified.
165 * Deallocate and clear the @bprm->security field.
167 * Compute and set the security attributes of a process being transformed
168 * by an execve operation based on the old attributes (current->security)
169 * and the information saved in @bprm->security by the set_security hook.
170 * Since this function may return an error, in which case the process will
171 * be killed. However, it can leave the security attributes of the
172 * process unchanged if an access failure occurs at this point.
173 * bprm_apply_creds is called under task_lock. @unsafe indicates various
174 * reasons why it may be unsafe to change security state.
175 * @bprm contains the linux_binprm structure.
176 * @bprm_post_apply_creds:
177 * Runs after bprm_apply_creds with the task_lock dropped, so that
178 * functions which cannot be called safely under the task_lock can
179 * be used. This hook is a good place to perform state changes on
180 * the process such as closing open file descriptors to which access
181 * is no longer granted if the attributes were changed.
182 * Note that a security module might need to save state between
183 * bprm_apply_creds and bprm_post_apply_creds to store the decision
184 * on whether the process may proceed.
185 * @bprm contains the linux_binprm structure.
186 * @bprm_set_security:
187 * Save security information in the bprm->security field, typically based
188 * on information about the bprm->file, for later use by the apply_creds
189 * hook. This hook may also optionally check permissions (e.g. for
190 * transitions between security domains).
191 * This hook may be called multiple times during a single execve, e.g. for
192 * interpreters. The hook can tell whether it has already been called by
193 * checking to see if @bprm->security is non-NULL. If so, then the hook
194 * may decide either to retain the security information saved earlier or
196 * @bprm contains the linux_binprm structure.
197 * Return 0 if the hook is successful and permission is granted.
198 * @bprm_check_security:
199 * This hook mediates the point when a search for a binary handler will
200 * begin. It allows a check the @bprm->security value which is set in
201 * the preceding set_security call. The primary difference from
202 * set_security is that the argv list and envp list are reliably
203 * available in @bprm. This hook may be called multiple times
204 * during a single execve; and in each pass set_security is called
206 * @bprm contains the linux_binprm structure.
207 * Return 0 if the hook is successful and permission is granted.
209 * Return a boolean value (0 or 1) indicating whether a "secure exec"
210 * is required. The flag is passed in the auxiliary table
211 * on the initial stack to the ELF interpreter to indicate whether libc
212 * should enable secure mode.
213 * @bprm contains the linux_binprm structure.
215 * Security hooks for filesystem operations.
217 * @sb_alloc_security:
218 * Allocate and attach a security structure to the sb->s_security field.
219 * The s_security field is initialized to NULL when the structure is
221 * @sb contains the super_block structure to be modified.
222 * Return 0 if operation was successful.
224 * Deallocate and clear the sb->s_security field.
225 * @sb contains the super_block structure to be modified.
227 * Check permission before obtaining filesystem statistics for the @mnt
229 * @dentry is a handle on the superblock for the filesystem.
230 * Return 0 if permission is granted.
232 * Check permission before an object specified by @dev_name is mounted on
233 * the mount point named by @nd. For an ordinary mount, @dev_name
234 * identifies a device if the file system type requires a device. For a
235 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
236 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
237 * pathname of the object being mounted.
238 * @dev_name contains the name for object being mounted.
239 * @path contains the path for mount point object.
240 * @type contains the filesystem type.
241 * @flags contains the mount flags.
242 * @data contains the filesystem-specific data.
243 * Return 0 if permission is granted.
245 * Allow mount option data to be copied prior to parsing by the filesystem,
246 * so that the security module can extract security-specific mount
247 * options cleanly (a filesystem may modify the data e.g. with strsep()).
248 * This also allows the original mount data to be stripped of security-
249 * specific options to avoid having to make filesystems aware of them.
250 * @type the type of filesystem being mounted.
251 * @orig the original mount data copied from userspace.
252 * @copy copied data which will be passed to the security module.
253 * Returns 0 if the copy was successful.
255 * Check permission before the device with superblock @mnt->sb is mounted
256 * on the mount point named by @nd.
257 * @mnt contains the vfsmount for device being mounted.
258 * @path contains the path for the mount point.
259 * Return 0 if permission is granted.
261 * Check permission before the @mnt file system is unmounted.
262 * @mnt contains the mounted file system.
263 * @flags contains the unmount flags, e.g. MNT_FORCE.
264 * Return 0 if permission is granted.
266 * Close any files in the @mnt mounted filesystem that are held open by
267 * the security module. This hook is called during an umount operation
268 * prior to checking whether the filesystem is still busy.
269 * @mnt contains the mounted filesystem.
271 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
272 * any files that were closed by umount_close. This hook is called during
273 * an umount operation if the umount fails after a call to the
275 * @mnt contains the mounted filesystem.
277 * Update the security module's state when a filesystem is remounted.
278 * This hook is only called if the remount was successful.
279 * @mnt contains the mounted file system.
280 * @flags contains the new filesystem flags.
281 * @data contains the filesystem-specific data.
283 * Update the security module's state when a filesystem is mounted.
284 * This hook is called any time a mount is successfully grafetd to
286 * @mnt contains the mounted filesystem.
287 * @mountpoint contains the path for the mount point.
289 * Check permission before pivoting the root filesystem.
290 * @old_path contains the path for the new location of the current root (put_old).
291 * @new_path contains the path for the new root (new_root).
292 * Return 0 if permission is granted.
293 * @sb_post_pivotroot:
294 * Update module state after a successful pivot.
295 * @old_path contains the path for the old root.
296 * @new_path contains the path for the new root.
298 * Set the security relevant mount options used for a superblock
299 * @sb the superblock to set security mount options for
300 * @opts binary data structure containing all lsm mount data
301 * @sb_clone_mnt_opts:
302 * Copy all security options from a given superblock to another
303 * @oldsb old superblock which contain information to clone
304 * @newsb new superblock which needs filled in
305 * @sb_parse_opts_str:
306 * Parse a string of security data filling in the opts structure
307 * @options string containing all mount options known by the LSM
308 * @opts binary data structure usable by the LSM
310 * Security hooks for inode operations.
312 * @inode_alloc_security:
313 * Allocate and attach a security structure to @inode->i_security. The
314 * i_security field is initialized to NULL when the inode structure is
316 * @inode contains the inode structure.
317 * Return 0 if operation was successful.
318 * @inode_free_security:
319 * @inode contains the inode structure.
320 * Deallocate the inode security structure and set @inode->i_security to
322 * @inode_init_security:
323 * Obtain the security attribute name suffix and value to set on a newly
324 * created inode and set up the incore security field for the new inode.
325 * This hook is called by the fs code as part of the inode creation
326 * transaction and provides for atomic labeling of the inode, unlike
327 * the post_create/mkdir/... hooks called by the VFS. The hook function
328 * is expected to allocate the name and value via kmalloc, with the caller
329 * being responsible for calling kfree after using them.
330 * If the security module does not use security attributes or does
331 * not wish to put a security attribute on this particular inode,
332 * then it should return -EOPNOTSUPP to skip this processing.
333 * @inode contains the inode structure of the newly created inode.
334 * @dir contains the inode structure of the parent directory.
335 * @name will be set to the allocated name suffix (e.g. selinux).
336 * @value will be set to the allocated attribute value.
337 * @len will be set to the length of the value.
338 * Returns 0 if @name and @value have been successfully set,
339 * -EOPNOTSUPP if no security attribute is needed, or
340 * -ENOMEM on memory allocation failure.
342 * Check permission to create a regular file.
343 * @dir contains inode structure of the parent of the new file.
344 * @dentry contains the dentry structure for the file to be created.
345 * @mode contains the file mode of the file to be created.
346 * Return 0 if permission is granted.
348 * Check permission before creating a new hard link to a file.
349 * @old_dentry contains the dentry structure for an existing link to the file.
350 * @dir contains the inode structure of the parent directory of the new link.
351 * @new_dentry contains the dentry structure for the new link.
352 * Return 0 if permission is granted.
354 * Check the permission to remove a hard link to a file.
355 * @dir contains the inode structure of parent directory of the file.
356 * @dentry contains the dentry structure for file to be unlinked.
357 * Return 0 if permission is granted.
359 * Check the permission to create a symbolic link to a file.
360 * @dir contains the inode structure of parent directory of the symbolic link.
361 * @dentry contains the dentry structure of the symbolic link.
362 * @old_name contains the pathname of file.
363 * Return 0 if permission is granted.
365 * Check permissions to create a new directory in the existing directory
366 * associated with inode strcture @dir.
367 * @dir containst the inode structure of parent of the directory to be created.
368 * @dentry contains the dentry structure of new directory.
369 * @mode contains the mode of new directory.
370 * Return 0 if permission is granted.
372 * Check the permission to remove a directory.
373 * @dir contains the inode structure of parent of the directory to be removed.
374 * @dentry contains the dentry structure of directory to be removed.
375 * Return 0 if permission is granted.
377 * Check permissions when creating a special file (or a socket or a fifo
378 * file created via the mknod system call). Note that if mknod operation
379 * is being done for a regular file, then the create hook will be called
381 * @dir contains the inode structure of parent of the new file.
382 * @dentry contains the dentry structure of the new file.
383 * @mode contains the mode of the new file.
384 * @dev contains the device number.
385 * Return 0 if permission is granted.
387 * Check for permission to rename a file or directory.
388 * @old_dir contains the inode structure for parent of the old link.
389 * @old_dentry contains the dentry structure of the old link.
390 * @new_dir contains the inode structure for parent of the new link.
391 * @new_dentry contains the dentry structure of the new link.
392 * Return 0 if permission is granted.
394 * Check the permission to read the symbolic link.
395 * @dentry contains the dentry structure for the file link.
396 * Return 0 if permission is granted.
397 * @inode_follow_link:
398 * Check permission to follow a symbolic link when looking up a pathname.
399 * @dentry contains the dentry structure for the link.
400 * @nd contains the nameidata structure for the parent directory.
401 * Return 0 if permission is granted.
403 * Check permission before accessing an inode. This hook is called by the
404 * existing Linux permission function, so a security module can use it to
405 * provide additional checking for existing Linux permission checks.
406 * Notice that this hook is called when a file is opened (as well as many
407 * other operations), whereas the file_security_ops permission hook is
408 * called when the actual read/write operations are performed.
409 * @inode contains the inode structure to check.
410 * @mask contains the permission mask.
411 * @nd contains the nameidata (may be NULL).
412 * Return 0 if permission is granted.
414 * Check permission before setting file attributes. Note that the kernel
415 * call to notify_change is performed from several locations, whenever
416 * file attributes change (such as when a file is truncated, chown/chmod
417 * operations, transferring disk quotas, etc).
418 * @dentry contains the dentry structure for the file.
419 * @attr is the iattr structure containing the new file attributes.
420 * Return 0 if permission is granted.
422 * Check permission before obtaining file attributes.
423 * @mnt is the vfsmount where the dentry was looked up
424 * @dentry contains the dentry structure for the file.
425 * Return 0 if permission is granted.
427 * @inode contains the inode structure for deleted inode.
428 * This hook is called when a deleted inode is released (i.e. an inode
429 * with no hard links has its use count drop to zero). A security module
430 * can use this hook to release any persistent label associated with the
433 * Check permission before setting the extended attributes
434 * @value identified by @name for @dentry.
435 * Return 0 if permission is granted.
436 * @inode_post_setxattr:
437 * Update inode security field after successful setxattr operation.
438 * @value identified by @name for @dentry.
440 * Check permission before obtaining the extended attributes
441 * identified by @name for @dentry.
442 * Return 0 if permission is granted.
444 * Check permission before obtaining the list of extended attribute
446 * Return 0 if permission is granted.
447 * @inode_removexattr:
448 * Check permission before removing the extended attribute
449 * identified by @name for @dentry.
450 * Return 0 if permission is granted.
451 * @inode_getsecurity:
452 * Retrieve a copy of the extended attribute representation of the
453 * security label associated with @name for @inode via @buffer. Note that
454 * @name is the remainder of the attribute name after the security prefix
455 * has been removed. @alloc is used to specify of the call should return a
456 * value via the buffer or just the value length Return size of buffer on
458 * @inode_setsecurity:
459 * Set the security label associated with @name for @inode from the
460 * extended attribute value @value. @size indicates the size of the
461 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
462 * Note that @name is the remainder of the attribute name after the
463 * security. prefix has been removed.
464 * Return 0 on success.
465 * @inode_listsecurity:
466 * Copy the extended attribute names for the security labels
467 * associated with @inode into @buffer. The maximum size of @buffer
468 * is specified by @buffer_size. @buffer may be NULL to request
469 * the size of the buffer required.
470 * Returns number of bytes used/required on success.
471 * @inode_need_killpriv:
472 * Called when an inode has been changed.
473 * @dentry is the dentry being changed.
474 * Return <0 on error to abort the inode change operation.
475 * Return 0 if inode_killpriv does not need to be called.
476 * Return >0 if inode_killpriv does need to be called.
478 * The setuid bit is being removed. Remove similar security labels.
479 * Called with the dentry->d_inode->i_mutex held.
480 * @dentry is the dentry being changed.
481 * Return 0 on success. If error is returned, then the operation
482 * causing setuid bit removal is failed.
484 * Get the secid associated with the node.
485 * @inode contains a pointer to the inode.
486 * @secid contains a pointer to the location where result will be saved.
487 * In case of failure, @secid will be set to zero.
489 * Security hooks for file operations
492 * Check file permissions before accessing an open file. This hook is
493 * called by various operations that read or write files. A security
494 * module can use this hook to perform additional checking on these
495 * operations, e.g. to revalidate permissions on use to support privilege
496 * bracketing or policy changes. Notice that this hook is used when the
497 * actual read/write operations are performed, whereas the
498 * inode_security_ops hook is called when a file is opened (as well as
499 * many other operations).
500 * Caveat: Although this hook can be used to revalidate permissions for
501 * various system call operations that read or write files, it does not
502 * address the revalidation of permissions for memory-mapped files.
503 * Security modules must handle this separately if they need such
505 * @file contains the file structure being accessed.
506 * @mask contains the requested permissions.
507 * Return 0 if permission is granted.
508 * @file_alloc_security:
509 * Allocate and attach a security structure to the file->f_security field.
510 * The security field is initialized to NULL when the structure is first
512 * @file contains the file structure to secure.
513 * Return 0 if the hook is successful and permission is granted.
514 * @file_free_security:
515 * Deallocate and free any security structures stored in file->f_security.
516 * @file contains the file structure being modified.
518 * @file contains the file structure.
519 * @cmd contains the operation to perform.
520 * @arg contains the operational arguments.
521 * Check permission for an ioctl operation on @file. Note that @arg can
522 * sometimes represents a user space pointer; in other cases, it may be a
523 * simple integer value. When @arg represents a user space pointer, it
524 * should never be used by the security module.
525 * Return 0 if permission is granted.
527 * Check permissions for a mmap operation. The @file may be NULL, e.g.
528 * if mapping anonymous memory.
529 * @file contains the file structure for file to map (may be NULL).
530 * @reqprot contains the protection requested by the application.
531 * @prot contains the protection that will be applied by the kernel.
532 * @flags contains the operational flags.
533 * Return 0 if permission is granted.
535 * Check permissions before changing memory access permissions.
536 * @vma contains the memory region to modify.
537 * @reqprot contains the protection requested by the application.
538 * @prot contains the protection that will be applied by the kernel.
539 * Return 0 if permission is granted.
541 * Check permission before performing file locking operations.
542 * Note: this hook mediates both flock and fcntl style locks.
543 * @file contains the file structure.
544 * @cmd contains the posix-translated lock operation to perform
545 * (e.g. F_RDLCK, F_WRLCK).
546 * Return 0 if permission is granted.
548 * Check permission before allowing the file operation specified by @cmd
549 * from being performed on the file @file. Note that @arg can sometimes
550 * represents a user space pointer; in other cases, it may be a simple
551 * integer value. When @arg represents a user space pointer, it should
552 * never be used by the security module.
553 * @file contains the file structure.
554 * @cmd contains the operation to be performed.
555 * @arg contains the operational arguments.
556 * Return 0 if permission is granted.
558 * Save owner security information (typically from current->security) in
559 * file->f_security for later use by the send_sigiotask hook.
560 * @file contains the file structure to update.
561 * Return 0 on success.
562 * @file_send_sigiotask:
563 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
564 * process @tsk. Note that this hook is sometimes called from interrupt.
565 * Note that the fown_struct, @fown, is never outside the context of a
566 * struct file, so the file structure (and associated security information)
567 * can always be obtained:
568 * container_of(fown, struct file, f_owner)
569 * @tsk contains the structure of task receiving signal.
570 * @fown contains the file owner information.
571 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
572 * Return 0 if permission is granted.
574 * This hook allows security modules to control the ability of a process
575 * to receive an open file descriptor via socket IPC.
576 * @file contains the file structure being received.
577 * Return 0 if permission is granted.
579 * Security hook for dentry
582 * Save open-time permission checking state for later use upon
583 * file_permission, and recheck access if anything has changed
584 * since inode_permission.
586 * Security hooks for task operations.
589 * Check permission before creating a child process. See the clone(2)
590 * manual page for definitions of the @clone_flags.
591 * @clone_flags contains the flags indicating what should be shared.
592 * Return 0 if permission is granted.
594 * @cred points to the credentials.
595 * Deallocate and clear the cred->security field in a set of credentials.
597 * @new points to the new credentials.
598 * @old points to the original credentials.
599 * @gfp indicates the atomicity of any memory allocations.
600 * Prepare a new set of credentials by copying the data from the old set.
602 * @new points to the new credentials.
603 * @old points to the original credentials.
604 * Install a new set of credentials.
606 * Check permission before setting one or more of the user identity
607 * attributes of the current process. The @flags parameter indicates
608 * which of the set*uid system calls invoked this hook and how to
609 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
610 * definitions at the beginning of this file for the @flags values and
612 * @id0 contains a uid.
613 * @id1 contains a uid.
614 * @id2 contains a uid.
615 * @flags contains one of the LSM_SETID_* values.
616 * Return 0 if permission is granted.
618 * Update the module's state after setting one or more of the user
619 * identity attributes of the current process. The @flags parameter
620 * indicates which of the set*uid system calls invoked this hook. If
621 * @new is the set of credentials that will be installed. Modifications
622 * should be made to this rather than to @current->cred.
623 * @old is the set of credentials that are being replaces
624 * @flags contains one of the LSM_SETID_* values.
625 * Return 0 on success.
627 * Check permission before setting one or more of the group identity
628 * attributes of the current process. The @flags parameter indicates
629 * which of the set*gid system calls invoked this hook and how to
630 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
631 * definitions at the beginning of this file for the @flags values and
633 * @id0 contains a gid.
634 * @id1 contains a gid.
635 * @id2 contains a gid.
636 * @flags contains one of the LSM_SETID_* values.
637 * Return 0 if permission is granted.
639 * Check permission before setting the process group identifier of the
640 * process @p to @pgid.
641 * @p contains the task_struct for process being modified.
642 * @pgid contains the new pgid.
643 * Return 0 if permission is granted.
645 * Check permission before getting the process group identifier of the
647 * @p contains the task_struct for the process.
648 * Return 0 if permission is granted.
650 * Check permission before getting the session identifier of the process
652 * @p contains the task_struct for the process.
653 * Return 0 if permission is granted.
655 * Retrieve the security identifier of the process @p.
656 * @p contains the task_struct for the process and place is into @secid.
657 * In case of failure, @secid will be set to zero.
660 * Check permission before setting the supplementary group set of the
662 * @group_info contains the new group information.
663 * Return 0 if permission is granted.
665 * Check permission before setting the nice value of @p to @nice.
666 * @p contains the task_struct of process.
667 * @nice contains the new nice value.
668 * Return 0 if permission is granted.
670 * Check permission before setting the ioprio value of @p to @ioprio.
671 * @p contains the task_struct of process.
672 * @ioprio contains the new ioprio value
673 * Return 0 if permission is granted.
675 * Check permission before getting the ioprio value of @p.
676 * @p contains the task_struct of process.
677 * Return 0 if permission is granted.
679 * Check permission before setting the resource limits of the current
680 * process for @resource to @new_rlim. The old resource limit values can
681 * be examined by dereferencing (current->signal->rlim + resource).
682 * @resource contains the resource whose limit is being set.
683 * @new_rlim contains the new limits for @resource.
684 * Return 0 if permission is granted.
685 * @task_setscheduler:
686 * Check permission before setting scheduling policy and/or parameters of
687 * process @p based on @policy and @lp.
688 * @p contains the task_struct for process.
689 * @policy contains the scheduling policy.
690 * @lp contains the scheduling parameters.
691 * Return 0 if permission is granted.
692 * @task_getscheduler:
693 * Check permission before obtaining scheduling information for process
695 * @p contains the task_struct for process.
696 * Return 0 if permission is granted.
698 * Check permission before moving memory owned by process @p.
699 * @p contains the task_struct for process.
700 * Return 0 if permission is granted.
702 * Check permission before sending signal @sig to @p. @info can be NULL,
703 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
704 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
705 * from the kernel and should typically be permitted.
706 * SIGIO signals are handled separately by the send_sigiotask hook in
708 * @p contains the task_struct for process.
709 * @info contains the signal information.
710 * @sig contains the signal value.
711 * @secid contains the sid of the process where the signal originated
712 * Return 0 if permission is granted.
714 * Check permission before allowing a process to reap a child process @p
715 * and collect its status information.
716 * @p contains the task_struct for process.
717 * Return 0 if permission is granted.
719 * Check permission before performing a process control operation on the
721 * @option contains the operation.
722 * @arg2 contains a argument.
723 * @arg3 contains a argument.
724 * @arg4 contains a argument.
725 * @arg5 contains a argument.
726 * Return -ENOSYS if no-one wanted to handle this op, any other value to
727 * cause prctl() to return immediately with that value.
729 * Set the security attributes for an inode based on an associated task's
730 * security attributes, e.g. for /proc/pid inodes.
731 * @p contains the task_struct for the task.
732 * @inode contains the inode structure for the inode.
734 * Security hooks for Netlink messaging.
737 * Save security information for a netlink message so that permission
738 * checking can be performed when the message is processed. The security
739 * information can be saved using the eff_cap field of the
740 * netlink_skb_parms structure. Also may be used to provide fine
741 * grained control over message transmission.
742 * @sk associated sock of task sending the message.,
743 * @skb contains the sk_buff structure for the netlink message.
744 * Return 0 if the information was successfully saved and message
745 * is allowed to be transmitted.
747 * Check permission before processing the received netlink message in
749 * @skb contains the sk_buff structure for the netlink message.
750 * @cap indicates the capability required
751 * Return 0 if permission is granted.
753 * Security hooks for Unix domain networking.
755 * @unix_stream_connect:
756 * Check permissions before establishing a Unix domain stream connection
757 * between @sock and @other.
758 * @sock contains the socket structure.
759 * @other contains the peer socket structure.
760 * Return 0 if permission is granted.
762 * Check permissions before connecting or sending datagrams from @sock to
764 * @sock contains the socket structure.
765 * @sock contains the peer socket structure.
766 * Return 0 if permission is granted.
768 * The @unix_stream_connect and @unix_may_send hooks were necessary because
769 * Linux provides an alternative to the conventional file name space for Unix
770 * domain sockets. Whereas binding and connecting to sockets in the file name
771 * space is mediated by the typical file permissions (and caught by the mknod
772 * and permission hooks in inode_security_ops), binding and connecting to
773 * sockets in the abstract name space is completely unmediated. Sufficient
774 * control of Unix domain sockets in the abstract name space isn't possible
775 * using only the socket layer hooks, since we need to know the actual target
776 * socket, which is not looked up until we are inside the af_unix code.
778 * Security hooks for socket operations.
781 * Check permissions prior to creating a new socket.
782 * @family contains the requested protocol family.
783 * @type contains the requested communications type.
784 * @protocol contains the requested protocol.
785 * @kern set to 1 if a kernel socket.
786 * Return 0 if permission is granted.
787 * @socket_post_create:
788 * This hook allows a module to update or allocate a per-socket security
789 * structure. Note that the security field was not added directly to the
790 * socket structure, but rather, the socket security information is stored
791 * in the associated inode. Typically, the inode alloc_security hook will
792 * allocate and and attach security information to
793 * sock->inode->i_security. This hook may be used to update the
794 * sock->inode->i_security field with additional information that wasn't
795 * available when the inode was allocated.
796 * @sock contains the newly created socket structure.
797 * @family contains the requested protocol family.
798 * @type contains the requested communications type.
799 * @protocol contains the requested protocol.
800 * @kern set to 1 if a kernel socket.
802 * Check permission before socket protocol layer bind operation is
803 * performed and the socket @sock is bound to the address specified in the
804 * @address parameter.
805 * @sock contains the socket structure.
806 * @address contains the address to bind to.
807 * @addrlen contains the length of address.
808 * Return 0 if permission is granted.
810 * Check permission before socket protocol layer connect operation
811 * attempts to connect socket @sock to a remote address, @address.
812 * @sock contains the socket structure.
813 * @address contains the address of remote endpoint.
814 * @addrlen contains the length of address.
815 * Return 0 if permission is granted.
817 * Check permission before socket protocol layer listen operation.
818 * @sock contains the socket structure.
819 * @backlog contains the maximum length for the pending connection queue.
820 * Return 0 if permission is granted.
822 * Check permission before accepting a new connection. Note that the new
823 * socket, @newsock, has been created and some information copied to it,
824 * but the accept operation has not actually been performed.
825 * @sock contains the listening socket structure.
826 * @newsock contains the newly created server socket for connection.
827 * Return 0 if permission is granted.
828 * @socket_post_accept:
829 * This hook allows a security module to copy security
830 * information into the newly created socket's inode.
831 * @sock contains the listening socket structure.
832 * @newsock contains the newly created server socket for connection.
834 * Check permission before transmitting a message to another socket.
835 * @sock contains the socket structure.
836 * @msg contains the message to be transmitted.
837 * @size contains the size of message.
838 * Return 0 if permission is granted.
840 * Check permission before receiving a message from a socket.
841 * @sock contains the socket structure.
842 * @msg contains the message structure.
843 * @size contains the size of message structure.
844 * @flags contains the operational flags.
845 * Return 0 if permission is granted.
846 * @socket_getsockname:
847 * Check permission before the local address (name) of the socket object
848 * @sock is retrieved.
849 * @sock contains the socket structure.
850 * Return 0 if permission is granted.
851 * @socket_getpeername:
852 * Check permission before the remote address (name) of a socket object
853 * @sock is retrieved.
854 * @sock contains the socket structure.
855 * Return 0 if permission is granted.
856 * @socket_getsockopt:
857 * Check permissions before retrieving the options associated with socket
859 * @sock contains the socket structure.
860 * @level contains the protocol level to retrieve option from.
861 * @optname contains the name of option to retrieve.
862 * Return 0 if permission is granted.
863 * @socket_setsockopt:
864 * Check permissions before setting the options associated with socket
866 * @sock contains the socket structure.
867 * @level contains the protocol level to set options for.
868 * @optname contains the name of the option to set.
869 * Return 0 if permission is granted.
871 * Checks permission before all or part of a connection on the socket
872 * @sock is shut down.
873 * @sock contains the socket structure.
874 * @how contains the flag indicating how future sends and receives are handled.
875 * Return 0 if permission is granted.
876 * @socket_sock_rcv_skb:
877 * Check permissions on incoming network packets. This hook is distinct
878 * from Netfilter's IP input hooks since it is the first time that the
879 * incoming sk_buff @skb has been associated with a particular socket, @sk.
880 * @sk contains the sock (not socket) associated with the incoming sk_buff.
881 * @skb contains the incoming network data.
882 * @socket_getpeersec_stream:
883 * This hook allows the security module to provide peer socket security
884 * state for unix or connected tcp sockets to userspace via getsockopt
885 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
886 * socket is associated with an ipsec SA.
887 * @sock is the local socket.
888 * @optval userspace memory where the security state is to be copied.
889 * @optlen userspace int where the module should copy the actual length
890 * of the security state.
891 * @len as input is the maximum length to copy to userspace provided
893 * Return 0 if all is well, otherwise, typical getsockopt return
895 * @socket_getpeersec_dgram:
896 * This hook allows the security module to provide peer socket security
897 * state for udp sockets on a per-packet basis to userspace via
898 * getsockopt SO_GETPEERSEC. The application must first have indicated
899 * the IP_PASSSEC option via getsockopt. It can then retrieve the
900 * security state returned by this hook for a packet via the SCM_SECURITY
901 * ancillary message type.
902 * @skb is the skbuff for the packet being queried
903 * @secdata is a pointer to a buffer in which to copy the security data
904 * @seclen is the maximum length for @secdata
905 * Return 0 on success, error on failure.
906 * @sk_alloc_security:
907 * Allocate and attach a security structure to the sk->sk_security field,
908 * which is used to copy security attributes between local stream sockets.
910 * Deallocate security structure.
911 * @sk_clone_security:
912 * Clone/copy security structure.
914 * Retrieve the LSM-specific secid for the sock to enable caching of network
917 * Sets the socket's isec sid to the sock's sid.
918 * @inet_conn_request:
919 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
921 * Sets the new child socket's sid to the openreq sid.
922 * @inet_conn_established:
923 * Sets the connection's peersid to the secmark on skb.
924 * @req_classify_flow:
925 * Sets the flow's sid to the openreq sid.
927 * Security hooks for XFRM operations.
929 * @xfrm_policy_alloc_security:
930 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
931 * Database used by the XFRM system.
932 * @sec_ctx contains the security context information being provided by
933 * the user-level policy update program (e.g., setkey).
934 * Allocate a security structure to the xp->security field; the security
935 * field is initialized to NULL when the xfrm_policy is allocated.
936 * Return 0 if operation was successful (memory to allocate, legal context)
937 * @xfrm_policy_clone_security:
938 * @old_ctx contains an existing xfrm_sec_ctx.
939 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
940 * Allocate a security structure in new_ctxp that contains the
941 * information from the old_ctx structure.
942 * Return 0 if operation was successful (memory to allocate).
943 * @xfrm_policy_free_security:
944 * @ctx contains the xfrm_sec_ctx
945 * Deallocate xp->security.
946 * @xfrm_policy_delete_security:
947 * @ctx contains the xfrm_sec_ctx.
948 * Authorize deletion of xp->security.
949 * @xfrm_state_alloc_security:
950 * @x contains the xfrm_state being added to the Security Association
951 * Database by the XFRM system.
952 * @sec_ctx contains the security context information being provided by
953 * the user-level SA generation program (e.g., setkey or racoon).
954 * @secid contains the secid from which to take the mls portion of the context.
955 * Allocate a security structure to the x->security field; the security
956 * field is initialized to NULL when the xfrm_state is allocated. Set the
957 * context to correspond to either sec_ctx or polsec, with the mls portion
958 * taken from secid in the latter case.
959 * Return 0 if operation was successful (memory to allocate, legal context).
960 * @xfrm_state_free_security:
961 * @x contains the xfrm_state.
962 * Deallocate x->security.
963 * @xfrm_state_delete_security:
964 * @x contains the xfrm_state.
965 * Authorize deletion of x->security.
966 * @xfrm_policy_lookup:
967 * @ctx contains the xfrm_sec_ctx for which the access control is being
969 * @fl_secid contains the flow security label that is used to authorize
970 * access to the policy xp.
971 * @dir contains the direction of the flow (input or output).
972 * Check permission when a flow selects a xfrm_policy for processing
973 * XFRMs on a packet. The hook is called when selecting either a
974 * per-socket policy or a generic xfrm policy.
975 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
977 * @xfrm_state_pol_flow_match:
978 * @x contains the state to match.
979 * @xp contains the policy to check for a match.
980 * @fl contains the flow to check for a match.
981 * Return 1 if there is a match.
982 * @xfrm_decode_session:
983 * @skb points to skb to decode.
984 * @secid points to the flow key secid to set.
985 * @ckall says if all xfrms used should be checked for same secid.
986 * Return 0 if ckall is zero or all xfrms used have the same secid.
988 * Security hooks affecting all Key Management operations
991 * Permit allocation of a key and assign security data. Note that key does
992 * not have a serial number assigned at this point.
993 * @key points to the key.
994 * @flags is the allocation flags
995 * Return 0 if permission is granted, -ve error otherwise.
997 * Notification of destruction; free security data.
998 * @key points to the key.
1001 * See whether a specific operational right is granted to a process on a
1003 * @key_ref refers to the key (key pointer + possession attribute bit).
1004 * @cred points to the credentials to provide the context against which to
1005 * evaluate the security data on the key.
1006 * @perm describes the combination of permissions required of this key.
1007 * Return 1 if permission granted, 0 if permission denied and -ve it the
1008 * normal permissions model should be effected.
1010 * Get a textual representation of the security context attached to a key
1011 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1012 * allocates the storage for the NUL-terminated string and the caller
1014 * @key points to the key to be queried.
1015 * @_buffer points to a pointer that should be set to point to the
1016 * resulting string (if no label or an error occurs).
1017 * Return the length of the string (including terminating NUL) or -ve if
1019 * May also return 0 (and a NULL buffer pointer) if there is no label.
1021 * Security hooks affecting all System V IPC operations.
1024 * Check permissions for access to IPC
1025 * @ipcp contains the kernel IPC permission structure
1026 * @flag contains the desired (requested) permission set
1027 * Return 0 if permission is granted.
1029 * Get the secid associated with the ipc object.
1030 * @ipcp contains the kernel IPC permission structure.
1031 * @secid contains a pointer to the location where result will be saved.
1032 * In case of failure, @secid will be set to zero.
1034 * Security hooks for individual messages held in System V IPC message queues
1035 * @msg_msg_alloc_security:
1036 * Allocate and attach a security structure to the msg->security field.
1037 * The security field is initialized to NULL when the structure is first
1039 * @msg contains the message structure to be modified.
1040 * Return 0 if operation was successful and permission is granted.
1041 * @msg_msg_free_security:
1042 * Deallocate the security structure for this message.
1043 * @msg contains the message structure to be modified.
1045 * Security hooks for System V IPC Message Queues
1047 * @msg_queue_alloc_security:
1048 * Allocate and attach a security structure to the
1049 * msq->q_perm.security field. The security field is initialized to
1050 * NULL when the structure is first created.
1051 * @msq contains the message queue structure to be modified.
1052 * Return 0 if operation was successful and permission is granted.
1053 * @msg_queue_free_security:
1054 * Deallocate security structure for this message queue.
1055 * @msq contains the message queue structure to be modified.
1056 * @msg_queue_associate:
1057 * Check permission when a message queue is requested through the
1058 * msgget system call. This hook is only called when returning the
1059 * message queue identifier for an existing message queue, not when a
1060 * new message queue is created.
1061 * @msq contains the message queue to act upon.
1062 * @msqflg contains the operation control flags.
1063 * Return 0 if permission is granted.
1064 * @msg_queue_msgctl:
1065 * Check permission when a message control operation specified by @cmd
1066 * is to be performed on the message queue @msq.
1067 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1068 * @msq contains the message queue to act upon. May be NULL.
1069 * @cmd contains the operation to be performed.
1070 * Return 0 if permission is granted.
1071 * @msg_queue_msgsnd:
1072 * Check permission before a message, @msg, is enqueued on the message
1074 * @msq contains the message queue to send message to.
1075 * @msg contains the message to be enqueued.
1076 * @msqflg contains operational flags.
1077 * Return 0 if permission is granted.
1078 * @msg_queue_msgrcv:
1079 * Check permission before a message, @msg, is removed from the message
1080 * queue, @msq. The @target task structure contains a pointer to the
1081 * process that will be receiving the message (not equal to the current
1082 * process when inline receives are being performed).
1083 * @msq contains the message queue to retrieve message from.
1084 * @msg contains the message destination.
1085 * @target contains the task structure for recipient process.
1086 * @type contains the type of message requested.
1087 * @mode contains the operational flags.
1088 * Return 0 if permission is granted.
1090 * Security hooks for System V Shared Memory Segments
1092 * @shm_alloc_security:
1093 * Allocate and attach a security structure to the shp->shm_perm.security
1094 * field. The security field is initialized to NULL when the structure is
1096 * @shp contains the shared memory structure to be modified.
1097 * Return 0 if operation was successful and permission is granted.
1098 * @shm_free_security:
1099 * Deallocate the security struct for this memory segment.
1100 * @shp contains the shared memory structure to be modified.
1102 * Check permission when a shared memory region is requested through the
1103 * shmget system call. This hook is only called when returning the shared
1104 * memory region identifier for an existing region, not when a new shared
1105 * memory region is created.
1106 * @shp contains the shared memory structure to be modified.
1107 * @shmflg contains the operation control flags.
1108 * Return 0 if permission is granted.
1110 * Check permission when a shared memory control operation specified by
1111 * @cmd is to be performed on the shared memory region @shp.
1112 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1113 * @shp contains shared memory structure to be modified.
1114 * @cmd contains the operation to be performed.
1115 * Return 0 if permission is granted.
1117 * Check permissions prior to allowing the shmat system call to attach the
1118 * shared memory segment @shp to the data segment of the calling process.
1119 * The attaching address is specified by @shmaddr.
1120 * @shp contains the shared memory structure to be modified.
1121 * @shmaddr contains the address to attach memory region to.
1122 * @shmflg contains the operational flags.
1123 * Return 0 if permission is granted.
1125 * Security hooks for System V Semaphores
1127 * @sem_alloc_security:
1128 * Allocate and attach a security structure to the sma->sem_perm.security
1129 * field. The security field is initialized to NULL when the structure is
1131 * @sma contains the semaphore structure
1132 * Return 0 if operation was successful and permission is granted.
1133 * @sem_free_security:
1134 * deallocate security struct for this semaphore
1135 * @sma contains the semaphore structure.
1137 * Check permission when a semaphore is requested through the semget
1138 * system call. This hook is only called when returning the semaphore
1139 * identifier for an existing semaphore, not when a new one must be
1141 * @sma contains the semaphore structure.
1142 * @semflg contains the operation control flags.
1143 * Return 0 if permission is granted.
1145 * Check permission when a semaphore operation specified by @cmd is to be
1146 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
1147 * IPC_INFO or SEM_INFO.
1148 * @sma contains the semaphore structure. May be NULL.
1149 * @cmd contains the operation to be performed.
1150 * Return 0 if permission is granted.
1152 * Check permissions before performing operations on members of the
1153 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1155 * @sma contains the semaphore structure.
1156 * @sops contains the operations to perform.
1157 * @nsops contains the number of operations to perform.
1158 * @alter contains the flag indicating whether changes are to be made.
1159 * Return 0 if permission is granted.
1161 * @ptrace_may_access:
1162 * Check permission before allowing the current process to trace the
1164 * Security modules may also want to perform a process tracing check
1165 * during an execve in the set_security or apply_creds hooks of
1166 * tracing check during an execve in the bprm_set_creds hook of
1167 * binprm_security_ops if the process is being traced and its security
1168 * attributes would be changed by the execve.
1169 * @child contains the task_struct structure for the target process.
1170 * @mode contains the PTRACE_MODE flags indicating the form of access.
1171 * Return 0 if permission is granted.
1173 * Check that the @parent process has sufficient permission to trace the
1174 * current process before allowing the current process to present itself
1175 * to the @parent process for tracing.
1176 * The parent process will still have to undergo the ptrace_may_access
1177 * checks before it is allowed to trace this one.
1178 * @parent contains the task_struct structure for debugger process.
1179 * Return 0 if permission is granted.
1181 * Get the @effective, @inheritable, and @permitted capability sets for
1182 * the @target process. The hook may also perform permission checking to
1183 * determine if the current process is allowed to see the capability sets
1184 * of the @target process.
1185 * @target contains the task_struct structure for target process.
1186 * @effective contains the effective capability set.
1187 * @inheritable contains the inheritable capability set.
1188 * @permitted contains the permitted capability set.
1189 * Return 0 if the capability sets were successfully obtained.
1191 * Set the @effective, @inheritable, and @permitted capability sets for
1192 * the current process.
1193 * @new contains the new credentials structure for target process.
1194 * @old contains the current credentials structure for target process.
1195 * @effective contains the effective capability set.
1196 * @inheritable contains the inheritable capability set.
1197 * @permitted contains the permitted capability set.
1198 * Return 0 and update @new if permission is granted.
1200 * Check whether the @tsk process has the @cap capability.
1201 * @tsk contains the task_struct for the process.
1202 * @cap contains the capability <include/linux/capability.h>.
1203 * Return 0 if the capability is granted for @tsk.
1205 * Check permission before enabling or disabling process accounting. If
1206 * accounting is being enabled, then @file refers to the open file used to
1207 * store accounting records. If accounting is being disabled, then @file
1209 * @file contains the file structure for the accounting file (may be NULL).
1210 * Return 0 if permission is granted.
1212 * Check permission before accessing the @table sysctl variable in the
1213 * manner specified by @op.
1214 * @table contains the ctl_table structure for the sysctl variable.
1215 * @op contains the operation (001 = search, 002 = write, 004 = read).
1216 * Return 0 if permission is granted.
1218 * Check permission before accessing the kernel message ring or changing
1219 * logging to the console.
1220 * See the syslog(2) manual page for an explanation of the @type values.
1221 * @type contains the type of action.
1222 * Return 0 if permission is granted.
1224 * Check permission to change the system time.
1225 * struct timespec and timezone are defined in include/linux/time.h
1226 * @ts contains new time
1227 * @tz contains new timezone
1228 * Return 0 if permission is granted.
1229 * @vm_enough_memory:
1230 * Check permissions for allocating a new virtual mapping.
1231 * @mm contains the mm struct it is being added to.
1232 * @pages contains the number of pages.
1233 * Return 0 if permission is granted.
1236 * Convert secid to security context.
1237 * @secid contains the security ID.
1238 * @secdata contains the pointer that stores the converted security context.
1240 * Convert security context to secid.
1241 * @secid contains the pointer to the generated security ID.
1242 * @secdata contains the security context.
1245 * Release the security context.
1246 * @secdata contains the security context.
1247 * @seclen contains the length of the security context.
1249 * Security hooks for Audit
1252 * Allocate and initialize an LSM audit rule structure.
1253 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1254 * @op contains the operator the rule uses.
1255 * @rulestr contains the context where the rule will be applied to.
1256 * @lsmrule contains a pointer to receive the result.
1257 * Return 0 if @lsmrule has been successfully set,
1258 * -EINVAL in case of an invalid rule.
1260 * @audit_rule_known:
1261 * Specifies whether given @rule contains any fields related to current LSM.
1262 * @rule contains the audit rule of interest.
1263 * Return 1 in case of relation found, 0 otherwise.
1265 * @audit_rule_match:
1266 * Determine if given @secid matches a rule previously approved
1267 * by @audit_rule_known.
1268 * @secid contains the security id in question.
1269 * @field contains the field which relates to current LSM.
1270 * @op contains the operator that will be used for matching.
1271 * @rule points to the audit rule that will be checked against.
1272 * @actx points to the audit context associated with the check.
1273 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1276 * Deallocate the LSM audit rule structure previously allocated by
1278 * @rule contains the allocated rule
1280 * This is the main security structure.
1282 struct security_operations {
1283 char name[SECURITY_NAME_MAX + 1];
1285 int (*ptrace_may_access) (struct task_struct *child, unsigned int mode);
1286 int (*ptrace_traceme) (struct task_struct *parent);
1287 int (*capget) (struct task_struct *target,
1288 kernel_cap_t *effective,
1289 kernel_cap_t *inheritable, kernel_cap_t *permitted);
1290 int (*capset) (struct cred *new,
1291 const struct cred *old,
1292 const kernel_cap_t *effective,
1293 const kernel_cap_t *inheritable,
1294 const kernel_cap_t *permitted);
1295 int (*capable) (struct task_struct *tsk, int cap, int audit);
1296 int (*acct) (struct file *file);
1297 int (*sysctl) (struct ctl_table *table, int op);
1298 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1299 int (*quota_on) (struct dentry *dentry);
1300 int (*syslog) (int type);
1301 int (*settime) (struct timespec *ts, struct timezone *tz);
1302 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
1304 int (*bprm_alloc_security) (struct linux_binprm *bprm);
1305 void (*bprm_free_security) (struct linux_binprm *bprm);
1306 int (*bprm_apply_creds) (struct linux_binprm *bprm, int unsafe);
1307 void (*bprm_post_apply_creds) (struct linux_binprm *bprm);
1308 int (*bprm_set_security) (struct linux_binprm *bprm);
1309 int (*bprm_check_security) (struct linux_binprm *bprm);
1310 int (*bprm_secureexec) (struct linux_binprm *bprm);
1312 int (*sb_alloc_security) (struct super_block *sb);
1313 void (*sb_free_security) (struct super_block *sb);
1314 int (*sb_copy_data) (char *orig, char *copy);
1315 int (*sb_kern_mount) (struct super_block *sb, void *data);
1316 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
1317 int (*sb_statfs) (struct dentry *dentry);
1318 int (*sb_mount) (char *dev_name, struct path *path,
1319 char *type, unsigned long flags, void *data);
1320 int (*sb_check_sb) (struct vfsmount *mnt, struct path *path);
1321 int (*sb_umount) (struct vfsmount *mnt, int flags);
1322 void (*sb_umount_close) (struct vfsmount *mnt);
1323 void (*sb_umount_busy) (struct vfsmount *mnt);
1324 void (*sb_post_remount) (struct vfsmount *mnt,
1325 unsigned long flags, void *data);
1326 void (*sb_post_addmount) (struct vfsmount *mnt,
1327 struct path *mountpoint);
1328 int (*sb_pivotroot) (struct path *old_path,
1329 struct path *new_path);
1330 void (*sb_post_pivotroot) (struct path *old_path,
1331 struct path *new_path);
1332 int (*sb_set_mnt_opts) (struct super_block *sb,
1333 struct security_mnt_opts *opts);
1334 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1335 struct super_block *newsb);
1336 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
1338 int (*inode_alloc_security) (struct inode *inode);
1339 void (*inode_free_security) (struct inode *inode);
1340 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1341 char **name, void **value, size_t *len);
1342 int (*inode_create) (struct inode *dir,
1343 struct dentry *dentry, int mode);
1344 int (*inode_link) (struct dentry *old_dentry,
1345 struct inode *dir, struct dentry *new_dentry);
1346 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1347 int (*inode_symlink) (struct inode *dir,
1348 struct dentry *dentry, const char *old_name);
1349 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
1350 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1351 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1352 int mode, dev_t dev);
1353 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1354 struct inode *new_dir, struct dentry *new_dentry);
1355 int (*inode_readlink) (struct dentry *dentry);
1356 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1357 int (*inode_permission) (struct inode *inode, int mask);
1358 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1359 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1360 void (*inode_delete) (struct inode *inode);
1361 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1362 const void *value, size_t size, int flags);
1363 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1364 const void *value, size_t size, int flags);
1365 int (*inode_getxattr) (struct dentry *dentry, const char *name);
1366 int (*inode_listxattr) (struct dentry *dentry);
1367 int (*inode_removexattr) (struct dentry *dentry, const char *name);
1368 int (*inode_need_killpriv) (struct dentry *dentry);
1369 int (*inode_killpriv) (struct dentry *dentry);
1370 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1371 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1372 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1373 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
1375 int (*file_permission) (struct file *file, int mask);
1376 int (*file_alloc_security) (struct file *file);
1377 void (*file_free_security) (struct file *file);
1378 int (*file_ioctl) (struct file *file, unsigned int cmd,
1380 int (*file_mmap) (struct file *file,
1381 unsigned long reqprot, unsigned long prot,
1382 unsigned long flags, unsigned long addr,
1383 unsigned long addr_only);
1384 int (*file_mprotect) (struct vm_area_struct *vma,
1385 unsigned long reqprot,
1386 unsigned long prot);
1387 int (*file_lock) (struct file *file, unsigned int cmd);
1388 int (*file_fcntl) (struct file *file, unsigned int cmd,
1390 int (*file_set_fowner) (struct file *file);
1391 int (*file_send_sigiotask) (struct task_struct *tsk,
1392 struct fown_struct *fown, int sig);
1393 int (*file_receive) (struct file *file);
1394 int (*dentry_open) (struct file *file, const struct cred *cred);
1396 int (*task_create) (unsigned long clone_flags);
1397 void (*cred_free) (struct cred *cred);
1398 int (*cred_prepare)(struct cred *new, const struct cred *old,
1400 void (*cred_commit)(struct cred *new, const struct cred *old);
1401 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1402 int (*task_fix_setuid) (struct cred *new, const struct cred *old,
1404 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1405 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1406 int (*task_getpgid) (struct task_struct *p);
1407 int (*task_getsid) (struct task_struct *p);
1408 void (*task_getsecid) (struct task_struct *p, u32 *secid);
1409 int (*task_setgroups) (struct group_info *group_info);
1410 int (*task_setnice) (struct task_struct *p, int nice);
1411 int (*task_setioprio) (struct task_struct *p, int ioprio);
1412 int (*task_getioprio) (struct task_struct *p);
1413 int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim);
1414 int (*task_setscheduler) (struct task_struct *p, int policy,
1415 struct sched_param *lp);
1416 int (*task_getscheduler) (struct task_struct *p);
1417 int (*task_movememory) (struct task_struct *p);
1418 int (*task_kill) (struct task_struct *p,
1419 struct siginfo *info, int sig, u32 secid);
1420 int (*task_wait) (struct task_struct *p);
1421 int (*task_prctl) (int option, unsigned long arg2,
1422 unsigned long arg3, unsigned long arg4,
1423 unsigned long arg5);
1424 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
1426 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
1427 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
1429 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1430 void (*msg_msg_free_security) (struct msg_msg *msg);
1432 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1433 void (*msg_queue_free_security) (struct msg_queue *msq);
1434 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1435 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1436 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1437 struct msg_msg *msg, int msqflg);
1438 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1439 struct msg_msg *msg,
1440 struct task_struct *target,
1441 long type, int mode);
1443 int (*shm_alloc_security) (struct shmid_kernel *shp);
1444 void (*shm_free_security) (struct shmid_kernel *shp);
1445 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1446 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1447 int (*shm_shmat) (struct shmid_kernel *shp,
1448 char __user *shmaddr, int shmflg);
1450 int (*sem_alloc_security) (struct sem_array *sma);
1451 void (*sem_free_security) (struct sem_array *sma);
1452 int (*sem_associate) (struct sem_array *sma, int semflg);
1453 int (*sem_semctl) (struct sem_array *sma, int cmd);
1454 int (*sem_semop) (struct sem_array *sma,
1455 struct sembuf *sops, unsigned nsops, int alter);
1457 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1458 int (*netlink_recv) (struct sk_buff *skb, int cap);
1460 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1462 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1463 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1464 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
1465 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
1466 void (*release_secctx) (char *secdata, u32 seclen);
1468 #ifdef CONFIG_SECURITY_NETWORK
1469 int (*unix_stream_connect) (struct socket *sock,
1470 struct socket *other, struct sock *newsk);
1471 int (*unix_may_send) (struct socket *sock, struct socket *other);
1473 int (*socket_create) (int family, int type, int protocol, int kern);
1474 int (*socket_post_create) (struct socket *sock, int family,
1475 int type, int protocol, int kern);
1476 int (*socket_bind) (struct socket *sock,
1477 struct sockaddr *address, int addrlen);
1478 int (*socket_connect) (struct socket *sock,
1479 struct sockaddr *address, int addrlen);
1480 int (*socket_listen) (struct socket *sock, int backlog);
1481 int (*socket_accept) (struct socket *sock, struct socket *newsock);
1482 void (*socket_post_accept) (struct socket *sock,
1483 struct socket *newsock);
1484 int (*socket_sendmsg) (struct socket *sock,
1485 struct msghdr *msg, int size);
1486 int (*socket_recvmsg) (struct socket *sock,
1487 struct msghdr *msg, int size, int flags);
1488 int (*socket_getsockname) (struct socket *sock);
1489 int (*socket_getpeername) (struct socket *sock);
1490 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1491 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1492 int (*socket_shutdown) (struct socket *sock, int how);
1493 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
1494 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1495 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
1496 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
1497 void (*sk_free_security) (struct sock *sk);
1498 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
1499 void (*sk_getsecid) (struct sock *sk, u32 *secid);
1500 void (*sock_graft) (struct sock *sk, struct socket *parent);
1501 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1502 struct request_sock *req);
1503 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1504 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1505 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
1506 #endif /* CONFIG_SECURITY_NETWORK */
1508 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1509 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
1510 struct xfrm_user_sec_ctx *sec_ctx);
1511 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1512 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1513 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
1514 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
1515 struct xfrm_user_sec_ctx *sec_ctx,
1517 void (*xfrm_state_free_security) (struct xfrm_state *x);
1518 int (*xfrm_state_delete_security) (struct xfrm_state *x);
1519 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1520 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1521 struct xfrm_policy *xp,
1523 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
1524 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1526 /* key management security hooks */
1528 int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags);
1529 void (*key_free) (struct key *key);
1530 int (*key_permission) (key_ref_t key_ref,
1531 const struct cred *cred,
1533 int (*key_getsecurity)(struct key *key, char **_buffer);
1534 #endif /* CONFIG_KEYS */
1537 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1538 int (*audit_rule_known) (struct audit_krule *krule);
1539 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1540 struct audit_context *actx);
1541 void (*audit_rule_free) (void *lsmrule);
1542 #endif /* CONFIG_AUDIT */
1546 extern int security_init(void);
1547 extern int security_module_enable(struct security_operations *ops);
1548 extern int register_security(struct security_operations *ops);
1550 /* Security operations */
1551 int security_ptrace_may_access(struct task_struct *child, unsigned int mode);
1552 int security_ptrace_traceme(struct task_struct *parent);
1553 int security_capget(struct task_struct *target,
1554 kernel_cap_t *effective,
1555 kernel_cap_t *inheritable,
1556 kernel_cap_t *permitted);
1557 int security_capset(struct cred *new, const struct cred *old,
1558 const kernel_cap_t *effective,
1559 const kernel_cap_t *inheritable,
1560 const kernel_cap_t *permitted);
1561 int security_capable(struct task_struct *tsk, int cap);
1562 int security_capable_noaudit(struct task_struct *tsk, int cap);
1563 int security_acct(struct file *file);
1564 int security_sysctl(struct ctl_table *table, int op);
1565 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1566 int security_quota_on(struct dentry *dentry);
1567 int security_syslog(int type);
1568 int security_settime(struct timespec *ts, struct timezone *tz);
1569 int security_vm_enough_memory(long pages);
1570 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
1571 int security_vm_enough_memory_kern(long pages);
1572 int security_bprm_alloc(struct linux_binprm *bprm);
1573 void security_bprm_free(struct linux_binprm *bprm);
1574 int security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
1575 void security_bprm_post_apply_creds(struct linux_binprm *bprm);
1576 int security_bprm_set(struct linux_binprm *bprm);
1577 int security_bprm_check(struct linux_binprm *bprm);
1578 int security_bprm_secureexec(struct linux_binprm *bprm);
1579 int security_sb_alloc(struct super_block *sb);
1580 void security_sb_free(struct super_block *sb);
1581 int security_sb_copy_data(char *orig, char *copy);
1582 int security_sb_kern_mount(struct super_block *sb, void *data);
1583 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
1584 int security_sb_statfs(struct dentry *dentry);
1585 int security_sb_mount(char *dev_name, struct path *path,
1586 char *type, unsigned long flags, void *data);
1587 int security_sb_check_sb(struct vfsmount *mnt, struct path *path);
1588 int security_sb_umount(struct vfsmount *mnt, int flags);
1589 void security_sb_umount_close(struct vfsmount *mnt);
1590 void security_sb_umount_busy(struct vfsmount *mnt);
1591 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data);
1592 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
1593 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
1594 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
1595 int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
1596 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1597 struct super_block *newsb);
1598 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
1600 int security_inode_alloc(struct inode *inode);
1601 void security_inode_free(struct inode *inode);
1602 int security_inode_init_security(struct inode *inode, struct inode *dir,
1603 char **name, void **value, size_t *len);
1604 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1605 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1606 struct dentry *new_dentry);
1607 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1608 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
1609 const char *old_name);
1610 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1611 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1612 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1613 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
1614 struct inode *new_dir, struct dentry *new_dentry);
1615 int security_inode_readlink(struct dentry *dentry);
1616 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
1617 int security_inode_permission(struct inode *inode, int mask);
1618 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1619 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
1620 void security_inode_delete(struct inode *inode);
1621 int security_inode_setxattr(struct dentry *dentry, const char *name,
1622 const void *value, size_t size, int flags);
1623 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1624 const void *value, size_t size, int flags);
1625 int security_inode_getxattr(struct dentry *dentry, const char *name);
1626 int security_inode_listxattr(struct dentry *dentry);
1627 int security_inode_removexattr(struct dentry *dentry, const char *name);
1628 int security_inode_need_killpriv(struct dentry *dentry);
1629 int security_inode_killpriv(struct dentry *dentry);
1630 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
1631 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1632 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
1633 void security_inode_getsecid(const struct inode *inode, u32 *secid);
1634 int security_file_permission(struct file *file, int mask);
1635 int security_file_alloc(struct file *file);
1636 void security_file_free(struct file *file);
1637 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1638 int security_file_mmap(struct file *file, unsigned long reqprot,
1639 unsigned long prot, unsigned long flags,
1640 unsigned long addr, unsigned long addr_only);
1641 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
1642 unsigned long prot);
1643 int security_file_lock(struct file *file, unsigned int cmd);
1644 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1645 int security_file_set_fowner(struct file *file);
1646 int security_file_send_sigiotask(struct task_struct *tsk,
1647 struct fown_struct *fown, int sig);
1648 int security_file_receive(struct file *file);
1649 int security_dentry_open(struct file *file, const struct cred *cred);
1650 int security_task_create(unsigned long clone_flags);
1651 void security_cred_free(struct cred *cred);
1652 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
1653 void security_commit_creds(struct cred *new, const struct cred *old);
1654 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
1655 int security_task_fix_setuid(struct cred *new, const struct cred *old,
1657 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags);
1658 int security_task_setpgid(struct task_struct *p, pid_t pgid);
1659 int security_task_getpgid(struct task_struct *p);
1660 int security_task_getsid(struct task_struct *p);
1661 void security_task_getsecid(struct task_struct *p, u32 *secid);
1662 int security_task_setgroups(struct group_info *group_info);
1663 int security_task_setnice(struct task_struct *p, int nice);
1664 int security_task_setioprio(struct task_struct *p, int ioprio);
1665 int security_task_getioprio(struct task_struct *p);
1666 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim);
1667 int security_task_setscheduler(struct task_struct *p,
1668 int policy, struct sched_param *lp);
1669 int security_task_getscheduler(struct task_struct *p);
1670 int security_task_movememory(struct task_struct *p);
1671 int security_task_kill(struct task_struct *p, struct siginfo *info,
1672 int sig, u32 secid);
1673 int security_task_wait(struct task_struct *p);
1674 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1675 unsigned long arg4, unsigned long arg5);
1676 void security_task_to_inode(struct task_struct *p, struct inode *inode);
1677 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
1678 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
1679 int security_msg_msg_alloc(struct msg_msg *msg);
1680 void security_msg_msg_free(struct msg_msg *msg);
1681 int security_msg_queue_alloc(struct msg_queue *msq);
1682 void security_msg_queue_free(struct msg_queue *msq);
1683 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1684 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1685 int security_msg_queue_msgsnd(struct msg_queue *msq,
1686 struct msg_msg *msg, int msqflg);
1687 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1688 struct task_struct *target, long type, int mode);
1689 int security_shm_alloc(struct shmid_kernel *shp);
1690 void security_shm_free(struct shmid_kernel *shp);
1691 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1692 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1693 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1694 int security_sem_alloc(struct sem_array *sma);
1695 void security_sem_free(struct sem_array *sma);
1696 int security_sem_associate(struct sem_array *sma, int semflg);
1697 int security_sem_semctl(struct sem_array *sma, int cmd);
1698 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1699 unsigned nsops, int alter);
1700 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
1701 int security_getprocattr(struct task_struct *p, char *name, char **value);
1702 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1703 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1704 int security_netlink_recv(struct sk_buff *skb, int cap);
1705 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
1706 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
1707 void security_release_secctx(char *secdata, u32 seclen);
1709 #else /* CONFIG_SECURITY */
1710 struct security_mnt_opts {
1713 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1717 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1722 * This is the default capabilities functionality. Most of these functions
1723 * are just stubbed out, but a few must call the proper capable code.
1726 static inline int security_init(void)
1731 static inline int security_ptrace_may_access(struct task_struct *child,
1734 return cap_ptrace_may_access(child, mode);
1737 static inline int security_ptrace_traceme(struct task_struct *parent)
1739 return cap_ptrace_traceme(parent);
1742 static inline int security_capget(struct task_struct *target,
1743 kernel_cap_t *effective,
1744 kernel_cap_t *inheritable,
1745 kernel_cap_t *permitted)
1747 return cap_capget(target, effective, inheritable, permitted);
1750 static inline int security_capset(struct cred *new,
1751 const struct cred *old,
1752 const kernel_cap_t *effective,
1753 const kernel_cap_t *inheritable,
1754 const kernel_cap_t *permitted)
1756 return cap_capset(new, old, effective, inheritable, permitted);
1759 static inline int security_capable(struct task_struct *tsk, int cap)
1761 return cap_capable(tsk, cap, SECURITY_CAP_AUDIT);
1764 static inline int security_capable_noaudit(struct task_struct *tsk, int cap)
1766 return cap_capable(tsk, cap, SECURITY_CAP_NOAUDIT);
1769 static inline int security_acct(struct file *file)
1774 static inline int security_sysctl(struct ctl_table *table, int op)
1779 static inline int security_quotactl(int cmds, int type, int id,
1780 struct super_block *sb)
1785 static inline int security_quota_on(struct dentry *dentry)
1790 static inline int security_syslog(int type)
1792 return cap_syslog(type);
1795 static inline int security_settime(struct timespec *ts, struct timezone *tz)
1797 return cap_settime(ts, tz);
1800 static inline int security_vm_enough_memory(long pages)
1802 return cap_vm_enough_memory(current->mm, pages);
1805 static inline int security_vm_enough_memory_kern(long pages)
1807 return cap_vm_enough_memory(current->mm, pages);
1810 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1812 return cap_vm_enough_memory(mm, pages);
1815 static inline int security_bprm_alloc(struct linux_binprm *bprm)
1820 static inline void security_bprm_free(struct linux_binprm *bprm)
1823 static inline int security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
1825 return cap_bprm_apply_creds(bprm, unsafe);
1828 static inline void security_bprm_post_apply_creds(struct linux_binprm *bprm)
1833 static inline int security_bprm_set(struct linux_binprm *bprm)
1835 return cap_bprm_set_security(bprm);
1838 static inline int security_bprm_check(struct linux_binprm *bprm)
1843 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
1845 return cap_bprm_secureexec(bprm);
1848 static inline int security_sb_alloc(struct super_block *sb)
1853 static inline void security_sb_free(struct super_block *sb)
1856 static inline int security_sb_copy_data(char *orig, char *copy)
1861 static inline int security_sb_kern_mount(struct super_block *sb, void *data)
1866 static inline int security_sb_show_options(struct seq_file *m,
1867 struct super_block *sb)
1872 static inline int security_sb_statfs(struct dentry *dentry)
1877 static inline int security_sb_mount(char *dev_name, struct path *path,
1878 char *type, unsigned long flags,
1884 static inline int security_sb_check_sb(struct vfsmount *mnt,
1890 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
1895 static inline void security_sb_umount_close(struct vfsmount *mnt)
1898 static inline void security_sb_umount_busy(struct vfsmount *mnt)
1901 static inline void security_sb_post_remount(struct vfsmount *mnt,
1902 unsigned long flags, void *data)
1905 static inline void security_sb_post_addmount(struct vfsmount *mnt,
1906 struct path *mountpoint)
1909 static inline int security_sb_pivotroot(struct path *old_path,
1910 struct path *new_path)
1915 static inline void security_sb_post_pivotroot(struct path *old_path,
1916 struct path *new_path)
1919 static inline int security_sb_set_mnt_opts(struct super_block *sb,
1920 struct security_mnt_opts *opts)
1925 static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1926 struct super_block *newsb)
1929 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
1934 static inline int security_inode_alloc(struct inode *inode)
1939 static inline void security_inode_free(struct inode *inode)
1942 static inline int security_inode_init_security(struct inode *inode,
1951 static inline int security_inode_create(struct inode *dir,
1952 struct dentry *dentry,
1958 static inline int security_inode_link(struct dentry *old_dentry,
1960 struct dentry *new_dentry)
1965 static inline int security_inode_unlink(struct inode *dir,
1966 struct dentry *dentry)
1971 static inline int security_inode_symlink(struct inode *dir,
1972 struct dentry *dentry,
1973 const char *old_name)
1978 static inline int security_inode_mkdir(struct inode *dir,
1979 struct dentry *dentry,
1985 static inline int security_inode_rmdir(struct inode *dir,
1986 struct dentry *dentry)
1991 static inline int security_inode_mknod(struct inode *dir,
1992 struct dentry *dentry,
1993 int mode, dev_t dev)
1998 static inline int security_inode_rename(struct inode *old_dir,
1999 struct dentry *old_dentry,
2000 struct inode *new_dir,
2001 struct dentry *new_dentry)
2006 static inline int security_inode_readlink(struct dentry *dentry)
2011 static inline int security_inode_follow_link(struct dentry *dentry,
2012 struct nameidata *nd)
2017 static inline int security_inode_permission(struct inode *inode, int mask)
2022 static inline int security_inode_setattr(struct dentry *dentry,
2028 static inline int security_inode_getattr(struct vfsmount *mnt,
2029 struct dentry *dentry)
2034 static inline void security_inode_delete(struct inode *inode)
2037 static inline int security_inode_setxattr(struct dentry *dentry,
2038 const char *name, const void *value, size_t size, int flags)
2040 return cap_inode_setxattr(dentry, name, value, size, flags);
2043 static inline void security_inode_post_setxattr(struct dentry *dentry,
2044 const char *name, const void *value, size_t size, int flags)
2047 static inline int security_inode_getxattr(struct dentry *dentry,
2053 static inline int security_inode_listxattr(struct dentry *dentry)
2058 static inline int security_inode_removexattr(struct dentry *dentry,
2061 return cap_inode_removexattr(dentry, name);
2064 static inline int security_inode_need_killpriv(struct dentry *dentry)
2066 return cap_inode_need_killpriv(dentry);
2069 static inline int security_inode_killpriv(struct dentry *dentry)
2071 return cap_inode_killpriv(dentry);
2074 static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
2079 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2084 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2089 static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2094 static inline int security_file_permission(struct file *file, int mask)
2099 static inline int security_file_alloc(struct file *file)
2104 static inline void security_file_free(struct file *file)
2107 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2113 static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2115 unsigned long flags,
2117 unsigned long addr_only)
2122 static inline int security_file_mprotect(struct vm_area_struct *vma,
2123 unsigned long reqprot,
2129 static inline int security_file_lock(struct file *file, unsigned int cmd)
2134 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2140 static inline int security_file_set_fowner(struct file *file)
2145 static inline int security_file_send_sigiotask(struct task_struct *tsk,
2146 struct fown_struct *fown,
2152 static inline int security_file_receive(struct file *file)
2157 static inline int security_dentry_open(struct file *file,
2158 const struct cred *cred)
2163 static inline int security_task_create(unsigned long clone_flags)
2168 static inline void security_cred_free(struct cred *cred)
2171 static inline int security_prepare_creds(struct cred *new,
2172 const struct cred *old,
2178 static inline void security_commit_creds(struct cred *new,
2179 const struct cred *old)
2183 static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
2189 static inline int security_task_fix_setuid(struct cred *new,
2190 const struct cred *old,
2193 return cap_task_fix_setuid(new, old, flags);
2196 static inline int security_task_setgid(gid_t id0, gid_t id1, gid_t id2,
2202 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
2207 static inline int security_task_getpgid(struct task_struct *p)
2212 static inline int security_task_getsid(struct task_struct *p)
2217 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
2222 static inline int security_task_setgroups(struct group_info *group_info)
2227 static inline int security_task_setnice(struct task_struct *p, int nice)
2229 return cap_task_setnice(p, nice);
2232 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
2234 return cap_task_setioprio(p, ioprio);
2237 static inline int security_task_getioprio(struct task_struct *p)
2242 static inline int security_task_setrlimit(unsigned int resource,
2243 struct rlimit *new_rlim)
2248 static inline int security_task_setscheduler(struct task_struct *p,
2250 struct sched_param *lp)
2252 return cap_task_setscheduler(p, policy, lp);
2255 static inline int security_task_getscheduler(struct task_struct *p)
2260 static inline int security_task_movememory(struct task_struct *p)
2265 static inline int security_task_kill(struct task_struct *p,
2266 struct siginfo *info, int sig,
2272 static inline int security_task_wait(struct task_struct *p)
2277 static inline int security_task_prctl(int option, unsigned long arg2,
2282 return cap_task_prctl(option, arg2, arg3, arg3, arg5);
2285 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2288 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2294 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2299 static inline int security_msg_msg_alloc(struct msg_msg *msg)
2304 static inline void security_msg_msg_free(struct msg_msg *msg)
2307 static inline int security_msg_queue_alloc(struct msg_queue *msq)
2312 static inline void security_msg_queue_free(struct msg_queue *msq)
2315 static inline int security_msg_queue_associate(struct msg_queue *msq,
2321 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
2326 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2327 struct msg_msg *msg, int msqflg)
2332 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2333 struct msg_msg *msg,
2334 struct task_struct *target,
2335 long type, int mode)
2340 static inline int security_shm_alloc(struct shmid_kernel *shp)
2345 static inline void security_shm_free(struct shmid_kernel *shp)
2348 static inline int security_shm_associate(struct shmid_kernel *shp,
2354 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
2359 static inline int security_shm_shmat(struct shmid_kernel *shp,
2360 char __user *shmaddr, int shmflg)
2365 static inline int security_sem_alloc(struct sem_array *sma)
2370 static inline void security_sem_free(struct sem_array *sma)
2373 static inline int security_sem_associate(struct sem_array *sma, int semflg)
2378 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
2383 static inline int security_sem_semop(struct sem_array *sma,
2384 struct sembuf *sops, unsigned nsops,
2390 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
2393 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
2398 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2403 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
2405 return cap_netlink_send(sk, skb);
2408 static inline int security_netlink_recv(struct sk_buff *skb, int cap)
2410 return cap_netlink_recv(skb, cap);
2413 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2418 static inline int security_secctx_to_secid(const char *secdata,
2425 static inline void security_release_secctx(char *secdata, u32 seclen)
2428 #endif /* CONFIG_SECURITY */
2430 #ifdef CONFIG_SECURITY_NETWORK
2432 int security_unix_stream_connect(struct socket *sock, struct socket *other,
2433 struct sock *newsk);
2434 int security_unix_may_send(struct socket *sock, struct socket *other);
2435 int security_socket_create(int family, int type, int protocol, int kern);
2436 int security_socket_post_create(struct socket *sock, int family,
2437 int type, int protocol, int kern);
2438 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2439 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2440 int security_socket_listen(struct socket *sock, int backlog);
2441 int security_socket_accept(struct socket *sock, struct socket *newsock);
2442 void security_socket_post_accept(struct socket *sock, struct socket *newsock);
2443 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2444 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2445 int size, int flags);
2446 int security_socket_getsockname(struct socket *sock);
2447 int security_socket_getpeername(struct socket *sock);
2448 int security_socket_getsockopt(struct socket *sock, int level, int optname);
2449 int security_socket_setsockopt(struct socket *sock, int level, int optname);
2450 int security_socket_shutdown(struct socket *sock, int how);
2451 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2452 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2453 int __user *optlen, unsigned len);
2454 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2455 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2456 void security_sk_free(struct sock *sk);
2457 void security_sk_clone(const struct sock *sk, struct sock *newsk);
2458 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2459 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2460 void security_sock_graft(struct sock*sk, struct socket *parent);
2461 int security_inet_conn_request(struct sock *sk,
2462 struct sk_buff *skb, struct request_sock *req);
2463 void security_inet_csk_clone(struct sock *newsk,
2464 const struct request_sock *req);
2465 void security_inet_conn_established(struct sock *sk,
2466 struct sk_buff *skb);
2468 #else /* CONFIG_SECURITY_NETWORK */
2469 static inline int security_unix_stream_connect(struct socket *sock,
2470 struct socket *other,
2476 static inline int security_unix_may_send(struct socket *sock,
2477 struct socket *other)
2482 static inline int security_socket_create(int family, int type,
2483 int protocol, int kern)
2488 static inline int security_socket_post_create(struct socket *sock,
2491 int protocol, int kern)
2496 static inline int security_socket_bind(struct socket *sock,
2497 struct sockaddr *address,
2503 static inline int security_socket_connect(struct socket *sock,
2504 struct sockaddr *address,
2510 static inline int security_socket_listen(struct socket *sock, int backlog)
2515 static inline int security_socket_accept(struct socket *sock,
2516 struct socket *newsock)
2521 static inline void security_socket_post_accept(struct socket *sock,
2522 struct socket *newsock)
2526 static inline int security_socket_sendmsg(struct socket *sock,
2527 struct msghdr *msg, int size)
2532 static inline int security_socket_recvmsg(struct socket *sock,
2533 struct msghdr *msg, int size,
2539 static inline int security_socket_getsockname(struct socket *sock)
2544 static inline int security_socket_getpeername(struct socket *sock)
2549 static inline int security_socket_getsockopt(struct socket *sock,
2550 int level, int optname)
2555 static inline int security_socket_setsockopt(struct socket *sock,
2556 int level, int optname)
2561 static inline int security_socket_shutdown(struct socket *sock, int how)
2565 static inline int security_sock_rcv_skb(struct sock *sk,
2566 struct sk_buff *skb)
2571 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2572 int __user *optlen, unsigned len)
2574 return -ENOPROTOOPT;
2577 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
2579 return -ENOPROTOOPT;
2582 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
2587 static inline void security_sk_free(struct sock *sk)
2591 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2595 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
2599 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2603 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
2607 static inline int security_inet_conn_request(struct sock *sk,
2608 struct sk_buff *skb, struct request_sock *req)
2613 static inline void security_inet_csk_clone(struct sock *newsk,
2614 const struct request_sock *req)
2618 static inline void security_inet_conn_established(struct sock *sk,
2619 struct sk_buff *skb)
2622 #endif /* CONFIG_SECURITY_NETWORK */
2624 #ifdef CONFIG_SECURITY_NETWORK_XFRM
2626 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2627 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2628 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2629 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
2630 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2631 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2632 struct xfrm_sec_ctx *polsec, u32 secid);
2633 int security_xfrm_state_delete(struct xfrm_state *x);
2634 void security_xfrm_state_free(struct xfrm_state *x);
2635 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
2636 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2637 struct xfrm_policy *xp, struct flowi *fl);
2638 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2639 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
2641 #else /* CONFIG_SECURITY_NETWORK_XFRM */
2643 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
2648 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
2653 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
2657 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
2662 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2663 struct xfrm_user_sec_ctx *sec_ctx)
2668 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2669 struct xfrm_sec_ctx *polsec, u32 secid)
2674 static inline void security_xfrm_state_free(struct xfrm_state *x)
2678 static inline int security_xfrm_state_delete(struct xfrm_state *x)
2683 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
2688 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2689 struct xfrm_policy *xp, struct flowi *fl)
2694 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
2699 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2703 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
2706 #ifdef CONFIG_SECURITY
2708 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
2709 void security_key_free(struct key *key);
2710 int security_key_permission(key_ref_t key_ref,
2711 const struct cred *cred, key_perm_t perm);
2712 int security_key_getsecurity(struct key *key, char **_buffer);
2716 static inline int security_key_alloc(struct key *key,
2717 const struct cred *cred,
2718 unsigned long flags)
2723 static inline void security_key_free(struct key *key)
2727 static inline int security_key_permission(key_ref_t key_ref,
2728 const struct cred *cred,
2734 static inline int security_key_getsecurity(struct key *key, char **_buffer)
2741 #endif /* CONFIG_KEYS */
2744 #ifdef CONFIG_SECURITY
2745 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2746 int security_audit_rule_known(struct audit_krule *krule);
2747 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2748 struct audit_context *actx);
2749 void security_audit_rule_free(void *lsmrule);
2753 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2759 static inline int security_audit_rule_known(struct audit_krule *krule)
2764 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2765 void *lsmrule, struct audit_context *actx)
2770 static inline void security_audit_rule_free(void *lsmrule)
2773 #endif /* CONFIG_SECURITY */
2774 #endif /* CONFIG_AUDIT */
2776 #ifdef CONFIG_SECURITYFS
2778 extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2779 struct dentry *parent, void *data,
2780 const struct file_operations *fops);
2781 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2782 extern void securityfs_remove(struct dentry *dentry);
2784 #else /* CONFIG_SECURITYFS */
2786 static inline struct dentry *securityfs_create_dir(const char *name,
2787 struct dentry *parent)
2789 return ERR_PTR(-ENODEV);
2792 static inline struct dentry *securityfs_create_file(const char *name,
2794 struct dentry *parent,
2796 const struct file_operations *fops)
2798 return ERR_PTR(-ENODEV);
2801 static inline void securityfs_remove(struct dentry *dentry)
2806 #endif /* ! __LINUX_SECURITY_H */