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, const struct cred *cred,
53 extern int cap_settime(struct timespec *ts, struct timezone *tz);
54 extern int cap_ptrace_may_access(struct task_struct *child, unsigned int mode);
55 extern int cap_ptrace_traceme(struct task_struct *parent);
56 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
57 extern int cap_capset(struct cred *new, const struct cred *old,
58 const kernel_cap_t *effective,
59 const kernel_cap_t *inheritable,
60 const kernel_cap_t *permitted);
61 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
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->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.
158 * Save security information in the bprm->security field, typically based
159 * on information about the bprm->file, for later use by the apply_creds
160 * hook. This hook may also optionally check permissions (e.g. for
161 * transitions between security domains).
162 * This hook may be called multiple times during a single execve, e.g. for
163 * interpreters. The hook can tell whether it has already been called by
164 * checking to see if @bprm->security is non-NULL. If so, then the hook
165 * may decide either to retain the security information saved earlier or
167 * @bprm contains the linux_binprm structure.
168 * Return 0 if the hook is successful and permission is granted.
169 * @bprm_check_security:
170 * This hook mediates the point when a search for a binary handler will
171 * begin. It allows a check the @bprm->security value which is set in the
172 * preceding set_creds call. The primary difference from set_creds is
173 * that the argv list and envp list are reliably available in @bprm. This
174 * hook may be called multiple times during a single execve; and in each
175 * pass set_creds is called first.
176 * @bprm contains the linux_binprm structure.
177 * Return 0 if the hook is successful and permission is granted.
178 * @bprm_committing_creds:
179 * Prepare to install the new security attributes of a process being
180 * transformed by an execve operation, based on the old credentials
181 * pointed to by @current->cred and the information set in @bprm->cred by
182 * the bprm_set_creds hook. @bprm points to the linux_binprm structure.
183 * This hook is a good place to perform state changes on the process such
184 * as closing open file descriptors to which access will no longer be
185 * granted when the attributes are changed. This is called immediately
186 * before commit_creds().
187 * @bprm_committed_creds:
188 * Tidy up after the installation of the new security attributes of a
189 * process being transformed by an execve operation. The new credentials
190 * have, by this point, been set to @current->cred. @bprm points to the
191 * linux_binprm structure. This hook is a good place to perform state
192 * changes on the process such as clearing out non-inheritable signal
193 * state. This is called immediately after commit_creds().
195 * Return a boolean value (0 or 1) indicating whether a "secure exec"
196 * is required. The flag is passed in the auxiliary table
197 * on the initial stack to the ELF interpreter to indicate whether libc
198 * should enable secure mode.
199 * @bprm contains the linux_binprm structure.
201 * Security hooks for filesystem operations.
203 * @sb_alloc_security:
204 * Allocate and attach a security structure to the sb->s_security field.
205 * The s_security field is initialized to NULL when the structure is
207 * @sb contains the super_block structure to be modified.
208 * Return 0 if operation was successful.
210 * Deallocate and clear the sb->s_security field.
211 * @sb contains the super_block structure to be modified.
213 * Check permission before obtaining filesystem statistics for the @mnt
215 * @dentry is a handle on the superblock for the filesystem.
216 * Return 0 if permission is granted.
218 * Check permission before an object specified by @dev_name is mounted on
219 * the mount point named by @nd. For an ordinary mount, @dev_name
220 * identifies a device if the file system type requires a device. For a
221 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
222 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
223 * pathname of the object being mounted.
224 * @dev_name contains the name for object being mounted.
225 * @path contains the path for mount point object.
226 * @type contains the filesystem type.
227 * @flags contains the mount flags.
228 * @data contains the filesystem-specific data.
229 * Return 0 if permission is granted.
231 * Allow mount option data to be copied prior to parsing by the filesystem,
232 * so that the security module can extract security-specific mount
233 * options cleanly (a filesystem may modify the data e.g. with strsep()).
234 * This also allows the original mount data to be stripped of security-
235 * specific options to avoid having to make filesystems aware of them.
236 * @type the type of filesystem being mounted.
237 * @orig the original mount data copied from userspace.
238 * @copy copied data which will be passed to the security module.
239 * Returns 0 if the copy was successful.
241 * Check permission before the device with superblock @mnt->sb is mounted
242 * on the mount point named by @nd.
243 * @mnt contains the vfsmount for device being mounted.
244 * @path contains the path for the mount point.
245 * Return 0 if permission is granted.
247 * Check permission before the @mnt file system is unmounted.
248 * @mnt contains the mounted file system.
249 * @flags contains the unmount flags, e.g. MNT_FORCE.
250 * Return 0 if permission is granted.
252 * Close any files in the @mnt mounted filesystem that are held open by
253 * the security module. This hook is called during an umount operation
254 * prior to checking whether the filesystem is still busy.
255 * @mnt contains the mounted filesystem.
257 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
258 * any files that were closed by umount_close. This hook is called during
259 * an umount operation if the umount fails after a call to the
261 * @mnt contains the mounted filesystem.
263 * Update the security module's state when a filesystem is remounted.
264 * This hook is only called if the remount was successful.
265 * @mnt contains the mounted file system.
266 * @flags contains the new filesystem flags.
267 * @data contains the filesystem-specific data.
269 * Update the security module's state when a filesystem is mounted.
270 * This hook is called any time a mount is successfully grafetd to
272 * @mnt contains the mounted filesystem.
273 * @mountpoint contains the path for the mount point.
275 * Check permission before pivoting the root filesystem.
276 * @old_path contains the path for the new location of the current root (put_old).
277 * @new_path contains the path for the new root (new_root).
278 * Return 0 if permission is granted.
279 * @sb_post_pivotroot:
280 * Update module state after a successful pivot.
281 * @old_path contains the path for the old root.
282 * @new_path contains the path for the new root.
284 * Set the security relevant mount options used for a superblock
285 * @sb the superblock to set security mount options for
286 * @opts binary data structure containing all lsm mount data
287 * @sb_clone_mnt_opts:
288 * Copy all security options from a given superblock to another
289 * @oldsb old superblock which contain information to clone
290 * @newsb new superblock which needs filled in
291 * @sb_parse_opts_str:
292 * Parse a string of security data filling in the opts structure
293 * @options string containing all mount options known by the LSM
294 * @opts binary data structure usable by the LSM
296 * Security hooks for inode operations.
298 * @inode_alloc_security:
299 * Allocate and attach a security structure to @inode->i_security. The
300 * i_security field is initialized to NULL when the inode structure is
302 * @inode contains the inode structure.
303 * Return 0 if operation was successful.
304 * @inode_free_security:
305 * @inode contains the inode structure.
306 * Deallocate the inode security structure and set @inode->i_security to
308 * @inode_init_security:
309 * Obtain the security attribute name suffix and value to set on a newly
310 * created inode and set up the incore security field for the new inode.
311 * This hook is called by the fs code as part of the inode creation
312 * transaction and provides for atomic labeling of the inode, unlike
313 * the post_create/mkdir/... hooks called by the VFS. The hook function
314 * is expected to allocate the name and value via kmalloc, with the caller
315 * being responsible for calling kfree after using them.
316 * If the security module does not use security attributes or does
317 * not wish to put a security attribute on this particular inode,
318 * then it should return -EOPNOTSUPP to skip this processing.
319 * @inode contains the inode structure of the newly created inode.
320 * @dir contains the inode structure of the parent directory.
321 * @name will be set to the allocated name suffix (e.g. selinux).
322 * @value will be set to the allocated attribute value.
323 * @len will be set to the length of the value.
324 * Returns 0 if @name and @value have been successfully set,
325 * -EOPNOTSUPP if no security attribute is needed, or
326 * -ENOMEM on memory allocation failure.
328 * Check permission to create a regular file.
329 * @dir contains inode structure of the parent of the new file.
330 * @dentry contains the dentry structure for the file to be created.
331 * @mode contains the file mode of the file to be created.
332 * Return 0 if permission is granted.
334 * Check permission before creating a new hard link to a file.
335 * @old_dentry contains the dentry structure for an existing link to the file.
336 * @dir contains the inode structure of the parent directory of the new link.
337 * @new_dentry contains the dentry structure for the new link.
338 * Return 0 if permission is granted.
340 * Check the permission to remove a hard link to a file.
341 * @dir contains the inode structure of parent directory of the file.
342 * @dentry contains the dentry structure for file to be unlinked.
343 * Return 0 if permission is granted.
345 * Check the permission to create a symbolic link to a file.
346 * @dir contains the inode structure of parent directory of the symbolic link.
347 * @dentry contains the dentry structure of the symbolic link.
348 * @old_name contains the pathname of file.
349 * Return 0 if permission is granted.
351 * Check permissions to create a new directory in the existing directory
352 * associated with inode strcture @dir.
353 * @dir containst the inode structure of parent of the directory to be created.
354 * @dentry contains the dentry structure of new directory.
355 * @mode contains the mode of new directory.
356 * Return 0 if permission is granted.
358 * Check the permission to remove a directory.
359 * @dir contains the inode structure of parent of the directory to be removed.
360 * @dentry contains the dentry structure of directory to be removed.
361 * Return 0 if permission is granted.
363 * Check permissions when creating a special file (or a socket or a fifo
364 * file created via the mknod system call). Note that if mknod operation
365 * is being done for a regular file, then the create hook will be called
367 * @dir contains the inode structure of parent of the new file.
368 * @dentry contains the dentry structure of the new file.
369 * @mode contains the mode of the new file.
370 * @dev contains the device number.
371 * Return 0 if permission is granted.
373 * Check for permission to rename a file or directory.
374 * @old_dir contains the inode structure for parent of the old link.
375 * @old_dentry contains the dentry structure of the old link.
376 * @new_dir contains the inode structure for parent of the new link.
377 * @new_dentry contains the dentry structure of the new link.
378 * Return 0 if permission is granted.
380 * Check the permission to read the symbolic link.
381 * @dentry contains the dentry structure for the file link.
382 * Return 0 if permission is granted.
383 * @inode_follow_link:
384 * Check permission to follow a symbolic link when looking up a pathname.
385 * @dentry contains the dentry structure for the link.
386 * @nd contains the nameidata structure for the parent directory.
387 * Return 0 if permission is granted.
389 * Check permission before accessing an inode. This hook is called by the
390 * existing Linux permission function, so a security module can use it to
391 * provide additional checking for existing Linux permission checks.
392 * Notice that this hook is called when a file is opened (as well as many
393 * other operations), whereas the file_security_ops permission hook is
394 * called when the actual read/write operations are performed.
395 * @inode contains the inode structure to check.
396 * @mask contains the permission mask.
397 * @nd contains the nameidata (may be NULL).
398 * Return 0 if permission is granted.
400 * Check permission before setting file attributes. Note that the kernel
401 * call to notify_change is performed from several locations, whenever
402 * file attributes change (such as when a file is truncated, chown/chmod
403 * operations, transferring disk quotas, etc).
404 * @dentry contains the dentry structure for the file.
405 * @attr is the iattr structure containing the new file attributes.
406 * Return 0 if permission is granted.
408 * Check permission before obtaining file attributes.
409 * @mnt is the vfsmount where the dentry was looked up
410 * @dentry contains the dentry structure for the file.
411 * Return 0 if permission is granted.
413 * @inode contains the inode structure for deleted inode.
414 * This hook is called when a deleted inode is released (i.e. an inode
415 * with no hard links has its use count drop to zero). A security module
416 * can use this hook to release any persistent label associated with the
419 * Check permission before setting the extended attributes
420 * @value identified by @name for @dentry.
421 * Return 0 if permission is granted.
422 * @inode_post_setxattr:
423 * Update inode security field after successful setxattr operation.
424 * @value identified by @name for @dentry.
426 * Check permission before obtaining the extended attributes
427 * identified by @name for @dentry.
428 * Return 0 if permission is granted.
430 * Check permission before obtaining the list of extended attribute
432 * Return 0 if permission is granted.
433 * @inode_removexattr:
434 * Check permission before removing the extended attribute
435 * identified by @name for @dentry.
436 * Return 0 if permission is granted.
437 * @inode_getsecurity:
438 * Retrieve a copy of the extended attribute representation of the
439 * security label associated with @name for @inode via @buffer. Note that
440 * @name is the remainder of the attribute name after the security prefix
441 * has been removed. @alloc is used to specify of the call should return a
442 * value via the buffer or just the value length Return size of buffer on
444 * @inode_setsecurity:
445 * Set the security label associated with @name for @inode from the
446 * extended attribute value @value. @size indicates the size of the
447 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
448 * Note that @name is the remainder of the attribute name after the
449 * security. prefix has been removed.
450 * Return 0 on success.
451 * @inode_listsecurity:
452 * Copy the extended attribute names for the security labels
453 * associated with @inode into @buffer. The maximum size of @buffer
454 * is specified by @buffer_size. @buffer may be NULL to request
455 * the size of the buffer required.
456 * Returns number of bytes used/required on success.
457 * @inode_need_killpriv:
458 * Called when an inode has been changed.
459 * @dentry is the dentry being changed.
460 * Return <0 on error to abort the inode change operation.
461 * Return 0 if inode_killpriv does not need to be called.
462 * Return >0 if inode_killpriv does need to be called.
464 * The setuid bit is being removed. Remove similar security labels.
465 * Called with the dentry->d_inode->i_mutex held.
466 * @dentry is the dentry being changed.
467 * Return 0 on success. If error is returned, then the operation
468 * causing setuid bit removal is failed.
470 * Get the secid associated with the node.
471 * @inode contains a pointer to the inode.
472 * @secid contains a pointer to the location where result will be saved.
473 * In case of failure, @secid will be set to zero.
475 * Security hooks for file operations
478 * Check file permissions before accessing an open file. This hook is
479 * called by various operations that read or write files. A security
480 * module can use this hook to perform additional checking on these
481 * operations, e.g. to revalidate permissions on use to support privilege
482 * bracketing or policy changes. Notice that this hook is used when the
483 * actual read/write operations are performed, whereas the
484 * inode_security_ops hook is called when a file is opened (as well as
485 * many other operations).
486 * Caveat: Although this hook can be used to revalidate permissions for
487 * various system call operations that read or write files, it does not
488 * address the revalidation of permissions for memory-mapped files.
489 * Security modules must handle this separately if they need such
491 * @file contains the file structure being accessed.
492 * @mask contains the requested permissions.
493 * Return 0 if permission is granted.
494 * @file_alloc_security:
495 * Allocate and attach a security structure to the file->f_security field.
496 * The security field is initialized to NULL when the structure is first
498 * @file contains the file structure to secure.
499 * Return 0 if the hook is successful and permission is granted.
500 * @file_free_security:
501 * Deallocate and free any security structures stored in file->f_security.
502 * @file contains the file structure being modified.
504 * @file contains the file structure.
505 * @cmd contains the operation to perform.
506 * @arg contains the operational arguments.
507 * Check permission for an ioctl operation on @file. Note that @arg can
508 * sometimes represents a user space pointer; in other cases, it may be a
509 * simple integer value. When @arg represents a user space pointer, it
510 * should never be used by the security module.
511 * Return 0 if permission is granted.
513 * Check permissions for a mmap operation. The @file may be NULL, e.g.
514 * if mapping anonymous memory.
515 * @file contains the file structure for file to map (may be NULL).
516 * @reqprot contains the protection requested by the application.
517 * @prot contains the protection that will be applied by the kernel.
518 * @flags contains the operational flags.
519 * Return 0 if permission is granted.
521 * Check permissions before changing memory access permissions.
522 * @vma contains the memory region to modify.
523 * @reqprot contains the protection requested by the application.
524 * @prot contains the protection that will be applied by the kernel.
525 * Return 0 if permission is granted.
527 * Check permission before performing file locking operations.
528 * Note: this hook mediates both flock and fcntl style locks.
529 * @file contains the file structure.
530 * @cmd contains the posix-translated lock operation to perform
531 * (e.g. F_RDLCK, F_WRLCK).
532 * Return 0 if permission is granted.
534 * Check permission before allowing the file operation specified by @cmd
535 * from being performed on the file @file. Note that @arg can sometimes
536 * represents a user space pointer; in other cases, it may be a simple
537 * integer value. When @arg represents a user space pointer, it should
538 * never be used by the security module.
539 * @file contains the file structure.
540 * @cmd contains the operation to be performed.
541 * @arg contains the operational arguments.
542 * Return 0 if permission is granted.
544 * Save owner security information (typically from current->security) in
545 * file->f_security for later use by the send_sigiotask hook.
546 * @file contains the file structure to update.
547 * Return 0 on success.
548 * @file_send_sigiotask:
549 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
550 * process @tsk. Note that this hook is sometimes called from interrupt.
551 * Note that the fown_struct, @fown, is never outside the context of a
552 * struct file, so the file structure (and associated security information)
553 * can always be obtained:
554 * container_of(fown, struct file, f_owner)
555 * @tsk contains the structure of task receiving signal.
556 * @fown contains the file owner information.
557 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
558 * Return 0 if permission is granted.
560 * This hook allows security modules to control the ability of a process
561 * to receive an open file descriptor via socket IPC.
562 * @file contains the file structure being received.
563 * Return 0 if permission is granted.
565 * Security hook for dentry
568 * Save open-time permission checking state for later use upon
569 * file_permission, and recheck access if anything has changed
570 * since inode_permission.
572 * Security hooks for task operations.
575 * Check permission before creating a child process. See the clone(2)
576 * manual page for definitions of the @clone_flags.
577 * @clone_flags contains the flags indicating what should be shared.
578 * Return 0 if permission is granted.
580 * @cred points to the credentials.
581 * Deallocate and clear the cred->security field in a set of credentials.
583 * @new points to the new credentials.
584 * @old points to the original credentials.
585 * @gfp indicates the atomicity of any memory allocations.
586 * Prepare a new set of credentials by copying the data from the old set.
588 * @new points to the new credentials.
589 * @old points to the original credentials.
590 * Install a new set of credentials.
592 * Set the credentials for a kernel service to act as (subjective context).
593 * @new points to the credentials to be modified.
594 * @secid specifies the security ID to be set
595 * The current task must be the one that nominated @secid.
596 * Return 0 if successful.
597 * @kernel_create_files_as:
598 * Set the file creation context in a set of credentials to be the same as
599 * the objective context of the specified inode.
600 * @new points to the credentials to be modified.
601 * @inode points to the inode to use as a reference.
602 * The current task must be the one that nominated @inode.
603 * Return 0 if successful.
605 * Check permission before setting one or more of the user identity
606 * attributes of the current process. The @flags parameter indicates
607 * which of the set*uid system calls invoked this hook and how to
608 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
609 * definitions at the beginning of this file for the @flags values and
611 * @id0 contains a uid.
612 * @id1 contains a uid.
613 * @id2 contains a uid.
614 * @flags contains one of the LSM_SETID_* values.
615 * Return 0 if permission is granted.
617 * Update the module's state after setting one or more of the user
618 * identity attributes of the current process. The @flags parameter
619 * indicates which of the set*uid system calls invoked this hook. If
620 * @new is the set of credentials that will be installed. Modifications
621 * should be made to this rather than to @current->cred.
622 * @old is the set of credentials that are being replaces
623 * @flags contains one of the LSM_SETID_* values.
624 * Return 0 on success.
626 * Check permission before setting one or more of the group identity
627 * attributes of the current process. The @flags parameter indicates
628 * which of the set*gid system calls invoked this hook and how to
629 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
630 * definitions at the beginning of this file for the @flags values and
632 * @id0 contains a gid.
633 * @id1 contains a gid.
634 * @id2 contains a gid.
635 * @flags contains one of the LSM_SETID_* values.
636 * Return 0 if permission is granted.
638 * Check permission before setting the process group identifier of the
639 * process @p to @pgid.
640 * @p contains the task_struct for process being modified.
641 * @pgid contains the new pgid.
642 * Return 0 if permission is granted.
644 * Check permission before getting the process group identifier of the
646 * @p contains the task_struct for the process.
647 * Return 0 if permission is granted.
649 * Check permission before getting the session identifier of the process
651 * @p contains the task_struct for the process.
652 * Return 0 if permission is granted.
654 * Retrieve the security identifier of the process @p.
655 * @p contains the task_struct for the process and place is into @secid.
656 * In case of failure, @secid will be set to zero.
659 * Check permission before setting the supplementary group set of the
661 * @group_info contains the new group information.
662 * Return 0 if permission is granted.
664 * Check permission before setting the nice value of @p to @nice.
665 * @p contains the task_struct of process.
666 * @nice contains the new nice value.
667 * Return 0 if permission is granted.
669 * Check permission before setting the ioprio value of @p to @ioprio.
670 * @p contains the task_struct of process.
671 * @ioprio contains the new ioprio value
672 * Return 0 if permission is granted.
674 * Check permission before getting the ioprio value of @p.
675 * @p contains the task_struct of process.
676 * Return 0 if permission is granted.
678 * Check permission before setting the resource limits of the current
679 * process for @resource to @new_rlim. The old resource limit values can
680 * be examined by dereferencing (current->signal->rlim + resource).
681 * @resource contains the resource whose limit is being set.
682 * @new_rlim contains the new limits for @resource.
683 * Return 0 if permission is granted.
684 * @task_setscheduler:
685 * Check permission before setting scheduling policy and/or parameters of
686 * process @p based on @policy and @lp.
687 * @p contains the task_struct for process.
688 * @policy contains the scheduling policy.
689 * @lp contains the scheduling parameters.
690 * Return 0 if permission is granted.
691 * @task_getscheduler:
692 * Check permission before obtaining scheduling information for process
694 * @p contains the task_struct for process.
695 * Return 0 if permission is granted.
697 * Check permission before moving memory owned by process @p.
698 * @p contains the task_struct for process.
699 * Return 0 if permission is granted.
701 * Check permission before sending signal @sig to @p. @info can be NULL,
702 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
703 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
704 * from the kernel and should typically be permitted.
705 * SIGIO signals are handled separately by the send_sigiotask hook in
707 * @p contains the task_struct for process.
708 * @info contains the signal information.
709 * @sig contains the signal value.
710 * @secid contains the sid of the process where the signal originated
711 * Return 0 if permission is granted.
713 * Check permission before allowing a process to reap a child process @p
714 * and collect its status information.
715 * @p contains the task_struct for process.
716 * Return 0 if permission is granted.
718 * Check permission before performing a process control operation on the
720 * @option contains the operation.
721 * @arg2 contains a argument.
722 * @arg3 contains a argument.
723 * @arg4 contains a argument.
724 * @arg5 contains a argument.
725 * Return -ENOSYS if no-one wanted to handle this op, any other value to
726 * cause prctl() to return immediately with that value.
728 * Set the security attributes for an inode based on an associated task's
729 * security attributes, e.g. for /proc/pid inodes.
730 * @p contains the task_struct for the task.
731 * @inode contains the inode structure for the inode.
733 * Security hooks for Netlink messaging.
736 * Save security information for a netlink message so that permission
737 * checking can be performed when the message is processed. The security
738 * information can be saved using the eff_cap field of the
739 * netlink_skb_parms structure. Also may be used to provide fine
740 * grained control over message transmission.
741 * @sk associated sock of task sending the message.,
742 * @skb contains the sk_buff structure for the netlink message.
743 * Return 0 if the information was successfully saved and message
744 * is allowed to be transmitted.
746 * Check permission before processing the received netlink message in
748 * @skb contains the sk_buff structure for the netlink message.
749 * @cap indicates the capability required
750 * Return 0 if permission is granted.
752 * Security hooks for Unix domain networking.
754 * @unix_stream_connect:
755 * Check permissions before establishing a Unix domain stream connection
756 * between @sock and @other.
757 * @sock contains the socket structure.
758 * @other contains the peer socket structure.
759 * Return 0 if permission is granted.
761 * Check permissions before connecting or sending datagrams from @sock to
763 * @sock contains the socket structure.
764 * @sock contains the peer socket structure.
765 * Return 0 if permission is granted.
767 * The @unix_stream_connect and @unix_may_send hooks were necessary because
768 * Linux provides an alternative to the conventional file name space for Unix
769 * domain sockets. Whereas binding and connecting to sockets in the file name
770 * space is mediated by the typical file permissions (and caught by the mknod
771 * and permission hooks in inode_security_ops), binding and connecting to
772 * sockets in the abstract name space is completely unmediated. Sufficient
773 * control of Unix domain sockets in the abstract name space isn't possible
774 * using only the socket layer hooks, since we need to know the actual target
775 * socket, which is not looked up until we are inside the af_unix code.
777 * Security hooks for socket operations.
780 * Check permissions prior to creating a new socket.
781 * @family contains the requested protocol family.
782 * @type contains the requested communications type.
783 * @protocol contains the requested protocol.
784 * @kern set to 1 if a kernel socket.
785 * Return 0 if permission is granted.
786 * @socket_post_create:
787 * This hook allows a module to update or allocate a per-socket security
788 * structure. Note that the security field was not added directly to the
789 * socket structure, but rather, the socket security information is stored
790 * in the associated inode. Typically, the inode alloc_security hook will
791 * allocate and and attach security information to
792 * sock->inode->i_security. This hook may be used to update the
793 * sock->inode->i_security field with additional information that wasn't
794 * available when the inode was allocated.
795 * @sock contains the newly created socket structure.
796 * @family contains the requested protocol family.
797 * @type contains the requested communications type.
798 * @protocol contains the requested protocol.
799 * @kern set to 1 if a kernel socket.
801 * Check permission before socket protocol layer bind operation is
802 * performed and the socket @sock is bound to the address specified in the
803 * @address parameter.
804 * @sock contains the socket structure.
805 * @address contains the address to bind to.
806 * @addrlen contains the length of address.
807 * Return 0 if permission is granted.
809 * Check permission before socket protocol layer connect operation
810 * attempts to connect socket @sock to a remote address, @address.
811 * @sock contains the socket structure.
812 * @address contains the address of remote endpoint.
813 * @addrlen contains the length of address.
814 * Return 0 if permission is granted.
816 * Check permission before socket protocol layer listen operation.
817 * @sock contains the socket structure.
818 * @backlog contains the maximum length for the pending connection queue.
819 * Return 0 if permission is granted.
821 * Check permission before accepting a new connection. Note that the new
822 * socket, @newsock, has been created and some information copied to it,
823 * but the accept operation has not actually been performed.
824 * @sock contains the listening socket structure.
825 * @newsock contains the newly created server socket for connection.
826 * Return 0 if permission is granted.
827 * @socket_post_accept:
828 * This hook allows a security module to copy security
829 * information into the newly created socket's inode.
830 * @sock contains the listening socket structure.
831 * @newsock contains the newly created server socket for connection.
833 * Check permission before transmitting a message to another socket.
834 * @sock contains the socket structure.
835 * @msg contains the message to be transmitted.
836 * @size contains the size of message.
837 * Return 0 if permission is granted.
839 * Check permission before receiving a message from a socket.
840 * @sock contains the socket structure.
841 * @msg contains the message structure.
842 * @size contains the size of message structure.
843 * @flags contains the operational flags.
844 * Return 0 if permission is granted.
845 * @socket_getsockname:
846 * Check permission before the local address (name) of the socket object
847 * @sock is retrieved.
848 * @sock contains the socket structure.
849 * Return 0 if permission is granted.
850 * @socket_getpeername:
851 * Check permission before the remote address (name) of a socket object
852 * @sock is retrieved.
853 * @sock contains the socket structure.
854 * Return 0 if permission is granted.
855 * @socket_getsockopt:
856 * Check permissions before retrieving the options associated with socket
858 * @sock contains the socket structure.
859 * @level contains the protocol level to retrieve option from.
860 * @optname contains the name of option to retrieve.
861 * Return 0 if permission is granted.
862 * @socket_setsockopt:
863 * Check permissions before setting the options associated with socket
865 * @sock contains the socket structure.
866 * @level contains the protocol level to set options for.
867 * @optname contains the name of the option to set.
868 * Return 0 if permission is granted.
870 * Checks permission before all or part of a connection on the socket
871 * @sock is shut down.
872 * @sock contains the socket structure.
873 * @how contains the flag indicating how future sends and receives are handled.
874 * Return 0 if permission is granted.
875 * @socket_sock_rcv_skb:
876 * Check permissions on incoming network packets. This hook is distinct
877 * from Netfilter's IP input hooks since it is the first time that the
878 * incoming sk_buff @skb has been associated with a particular socket, @sk.
879 * @sk contains the sock (not socket) associated with the incoming sk_buff.
880 * @skb contains the incoming network data.
881 * @socket_getpeersec_stream:
882 * This hook allows the security module to provide peer socket security
883 * state for unix or connected tcp sockets to userspace via getsockopt
884 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
885 * socket is associated with an ipsec SA.
886 * @sock is the local socket.
887 * @optval userspace memory where the security state is to be copied.
888 * @optlen userspace int where the module should copy the actual length
889 * of the security state.
890 * @len as input is the maximum length to copy to userspace provided
892 * Return 0 if all is well, otherwise, typical getsockopt return
894 * @socket_getpeersec_dgram:
895 * This hook allows the security module to provide peer socket security
896 * state for udp sockets on a per-packet basis to userspace via
897 * getsockopt SO_GETPEERSEC. The application must first have indicated
898 * the IP_PASSSEC option via getsockopt. It can then retrieve the
899 * security state returned by this hook for a packet via the SCM_SECURITY
900 * ancillary message type.
901 * @skb is the skbuff for the packet being queried
902 * @secdata is a pointer to a buffer in which to copy the security data
903 * @seclen is the maximum length for @secdata
904 * Return 0 on success, error on failure.
905 * @sk_alloc_security:
906 * Allocate and attach a security structure to the sk->sk_security field,
907 * which is used to copy security attributes between local stream sockets.
909 * Deallocate security structure.
910 * @sk_clone_security:
911 * Clone/copy security structure.
913 * Retrieve the LSM-specific secid for the sock to enable caching of network
916 * Sets the socket's isec sid to the sock's sid.
917 * @inet_conn_request:
918 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
920 * Sets the new child socket's sid to the openreq sid.
921 * @inet_conn_established:
922 * Sets the connection's peersid to the secmark on skb.
923 * @req_classify_flow:
924 * Sets the flow's sid to the openreq sid.
926 * Security hooks for XFRM operations.
928 * @xfrm_policy_alloc_security:
929 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
930 * Database used by the XFRM system.
931 * @sec_ctx contains the security context information being provided by
932 * the user-level policy update program (e.g., setkey).
933 * Allocate a security structure to the xp->security field; the security
934 * field is initialized to NULL when the xfrm_policy is allocated.
935 * Return 0 if operation was successful (memory to allocate, legal context)
936 * @xfrm_policy_clone_security:
937 * @old_ctx contains an existing xfrm_sec_ctx.
938 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
939 * Allocate a security structure in new_ctxp that contains the
940 * information from the old_ctx structure.
941 * Return 0 if operation was successful (memory to allocate).
942 * @xfrm_policy_free_security:
943 * @ctx contains the xfrm_sec_ctx
944 * Deallocate xp->security.
945 * @xfrm_policy_delete_security:
946 * @ctx contains the xfrm_sec_ctx.
947 * Authorize deletion of xp->security.
948 * @xfrm_state_alloc_security:
949 * @x contains the xfrm_state being added to the Security Association
950 * Database by the XFRM system.
951 * @sec_ctx contains the security context information being provided by
952 * the user-level SA generation program (e.g., setkey or racoon).
953 * @secid contains the secid from which to take the mls portion of the context.
954 * Allocate a security structure to the x->security field; the security
955 * field is initialized to NULL when the xfrm_state is allocated. Set the
956 * context to correspond to either sec_ctx or polsec, with the mls portion
957 * taken from secid in the latter case.
958 * Return 0 if operation was successful (memory to allocate, legal context).
959 * @xfrm_state_free_security:
960 * @x contains the xfrm_state.
961 * Deallocate x->security.
962 * @xfrm_state_delete_security:
963 * @x contains the xfrm_state.
964 * Authorize deletion of x->security.
965 * @xfrm_policy_lookup:
966 * @ctx contains the xfrm_sec_ctx for which the access control is being
968 * @fl_secid contains the flow security label that is used to authorize
969 * access to the policy xp.
970 * @dir contains the direction of the flow (input or output).
971 * Check permission when a flow selects a xfrm_policy for processing
972 * XFRMs on a packet. The hook is called when selecting either a
973 * per-socket policy or a generic xfrm policy.
974 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
976 * @xfrm_state_pol_flow_match:
977 * @x contains the state to match.
978 * @xp contains the policy to check for a match.
979 * @fl contains the flow to check for a match.
980 * Return 1 if there is a match.
981 * @xfrm_decode_session:
982 * @skb points to skb to decode.
983 * @secid points to the flow key secid to set.
984 * @ckall says if all xfrms used should be checked for same secid.
985 * Return 0 if ckall is zero or all xfrms used have the same secid.
987 * Security hooks affecting all Key Management operations
990 * Permit allocation of a key and assign security data. Note that key does
991 * not have a serial number assigned at this point.
992 * @key points to the key.
993 * @flags is the allocation flags
994 * Return 0 if permission is granted, -ve error otherwise.
996 * Notification of destruction; free security data.
997 * @key points to the key.
1000 * See whether a specific operational right is granted to a process on a
1002 * @key_ref refers to the key (key pointer + possession attribute bit).
1003 * @cred points to the credentials to provide the context against which to
1004 * evaluate the security data on the key.
1005 * @perm describes the combination of permissions required of this key.
1006 * Return 1 if permission granted, 0 if permission denied and -ve it the
1007 * normal permissions model should be effected.
1009 * Get a textual representation of the security context attached to a key
1010 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1011 * allocates the storage for the NUL-terminated string and the caller
1013 * @key points to the key to be queried.
1014 * @_buffer points to a pointer that should be set to point to the
1015 * resulting string (if no label or an error occurs).
1016 * Return the length of the string (including terminating NUL) or -ve if
1018 * May also return 0 (and a NULL buffer pointer) if there is no label.
1020 * Security hooks affecting all System V IPC operations.
1023 * Check permissions for access to IPC
1024 * @ipcp contains the kernel IPC permission structure
1025 * @flag contains the desired (requested) permission set
1026 * Return 0 if permission is granted.
1028 * Get the secid associated with the ipc object.
1029 * @ipcp contains the kernel IPC permission structure.
1030 * @secid contains a pointer to the location where result will be saved.
1031 * In case of failure, @secid will be set to zero.
1033 * Security hooks for individual messages held in System V IPC message queues
1034 * @msg_msg_alloc_security:
1035 * Allocate and attach a security structure to the msg->security field.
1036 * The security field is initialized to NULL when the structure is first
1038 * @msg contains the message structure to be modified.
1039 * Return 0 if operation was successful and permission is granted.
1040 * @msg_msg_free_security:
1041 * Deallocate the security structure for this message.
1042 * @msg contains the message structure to be modified.
1044 * Security hooks for System V IPC Message Queues
1046 * @msg_queue_alloc_security:
1047 * Allocate and attach a security structure to the
1048 * msq->q_perm.security field. The security field is initialized to
1049 * NULL when the structure is first created.
1050 * @msq contains the message queue structure to be modified.
1051 * Return 0 if operation was successful and permission is granted.
1052 * @msg_queue_free_security:
1053 * Deallocate security structure for this message queue.
1054 * @msq contains the message queue structure to be modified.
1055 * @msg_queue_associate:
1056 * Check permission when a message queue is requested through the
1057 * msgget system call. This hook is only called when returning the
1058 * message queue identifier for an existing message queue, not when a
1059 * new message queue is created.
1060 * @msq contains the message queue to act upon.
1061 * @msqflg contains the operation control flags.
1062 * Return 0 if permission is granted.
1063 * @msg_queue_msgctl:
1064 * Check permission when a message control operation specified by @cmd
1065 * is to be performed on the message queue @msq.
1066 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1067 * @msq contains the message queue to act upon. May be NULL.
1068 * @cmd contains the operation to be performed.
1069 * Return 0 if permission is granted.
1070 * @msg_queue_msgsnd:
1071 * Check permission before a message, @msg, is enqueued on the message
1073 * @msq contains the message queue to send message to.
1074 * @msg contains the message to be enqueued.
1075 * @msqflg contains operational flags.
1076 * Return 0 if permission is granted.
1077 * @msg_queue_msgrcv:
1078 * Check permission before a message, @msg, is removed from the message
1079 * queue, @msq. The @target task structure contains a pointer to the
1080 * process that will be receiving the message (not equal to the current
1081 * process when inline receives are being performed).
1082 * @msq contains the message queue to retrieve message from.
1083 * @msg contains the message destination.
1084 * @target contains the task structure for recipient process.
1085 * @type contains the type of message requested.
1086 * @mode contains the operational flags.
1087 * Return 0 if permission is granted.
1089 * Security hooks for System V Shared Memory Segments
1091 * @shm_alloc_security:
1092 * Allocate and attach a security structure to the shp->shm_perm.security
1093 * field. The security field is initialized to NULL when the structure is
1095 * @shp contains the shared memory structure to be modified.
1096 * Return 0 if operation was successful and permission is granted.
1097 * @shm_free_security:
1098 * Deallocate the security struct for this memory segment.
1099 * @shp contains the shared memory structure to be modified.
1101 * Check permission when a shared memory region is requested through the
1102 * shmget system call. This hook is only called when returning the shared
1103 * memory region identifier for an existing region, not when a new shared
1104 * memory region is created.
1105 * @shp contains the shared memory structure to be modified.
1106 * @shmflg contains the operation control flags.
1107 * Return 0 if permission is granted.
1109 * Check permission when a shared memory control operation specified by
1110 * @cmd is to be performed on the shared memory region @shp.
1111 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1112 * @shp contains shared memory structure to be modified.
1113 * @cmd contains the operation to be performed.
1114 * Return 0 if permission is granted.
1116 * Check permissions prior to allowing the shmat system call to attach the
1117 * shared memory segment @shp to the data segment of the calling process.
1118 * The attaching address is specified by @shmaddr.
1119 * @shp contains the shared memory structure to be modified.
1120 * @shmaddr contains the address to attach memory region to.
1121 * @shmflg contains the operational flags.
1122 * Return 0 if permission is granted.
1124 * Security hooks for System V Semaphores
1126 * @sem_alloc_security:
1127 * Allocate and attach a security structure to the sma->sem_perm.security
1128 * field. The security field is initialized to NULL when the structure is
1130 * @sma contains the semaphore structure
1131 * Return 0 if operation was successful and permission is granted.
1132 * @sem_free_security:
1133 * deallocate security struct for this semaphore
1134 * @sma contains the semaphore structure.
1136 * Check permission when a semaphore is requested through the semget
1137 * system call. This hook is only called when returning the semaphore
1138 * identifier for an existing semaphore, not when a new one must be
1140 * @sma contains the semaphore structure.
1141 * @semflg contains the operation control flags.
1142 * Return 0 if permission is granted.
1144 * Check permission when a semaphore operation specified by @cmd is to be
1145 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
1146 * IPC_INFO or SEM_INFO.
1147 * @sma contains the semaphore structure. May be NULL.
1148 * @cmd contains the operation to be performed.
1149 * Return 0 if permission is granted.
1151 * Check permissions before performing operations on members of the
1152 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1154 * @sma contains the semaphore structure.
1155 * @sops contains the operations to perform.
1156 * @nsops contains the number of operations to perform.
1157 * @alter contains the flag indicating whether changes are to be made.
1158 * Return 0 if permission is granted.
1160 * @ptrace_may_access:
1161 * Check permission before allowing the current process to trace the
1163 * Security modules may also want to perform a process tracing check
1164 * during an execve in the set_security or apply_creds hooks of
1165 * tracing check during an execve in the bprm_set_creds hook of
1166 * binprm_security_ops if the process is being traced and its security
1167 * attributes would be changed by the execve.
1168 * @child contains the task_struct structure for the target process.
1169 * @mode contains the PTRACE_MODE flags indicating the form of access.
1170 * Return 0 if permission is granted.
1172 * Check that the @parent process has sufficient permission to trace the
1173 * current process before allowing the current process to present itself
1174 * to the @parent process for tracing.
1175 * The parent process will still have to undergo the ptrace_may_access
1176 * checks before it is allowed to trace this one.
1177 * @parent contains the task_struct structure for debugger process.
1178 * Return 0 if permission is granted.
1180 * Get the @effective, @inheritable, and @permitted capability sets for
1181 * the @target process. The hook may also perform permission checking to
1182 * determine if the current process is allowed to see the capability sets
1183 * of the @target process.
1184 * @target contains the task_struct structure for target process.
1185 * @effective contains the effective capability set.
1186 * @inheritable contains the inheritable capability set.
1187 * @permitted contains the permitted capability set.
1188 * Return 0 if the capability sets were successfully obtained.
1190 * Set the @effective, @inheritable, and @permitted capability sets for
1191 * the current process.
1192 * @new contains the new credentials structure for target process.
1193 * @old contains the current credentials structure for target process.
1194 * @effective contains the effective capability set.
1195 * @inheritable contains the inheritable capability set.
1196 * @permitted contains the permitted capability set.
1197 * Return 0 and update @new if permission is granted.
1199 * Check whether the @tsk process has the @cap capability in the indicated
1201 * @tsk contains the task_struct for the process.
1202 * @cred contains the credentials to use.
1203 * @cap contains the capability <include/linux/capability.h>.
1204 * @audit: Whether to write an audit message or not
1205 * Return 0 if the capability is granted for @tsk.
1207 * Check permission before enabling or disabling process accounting. If
1208 * accounting is being enabled, then @file refers to the open file used to
1209 * store accounting records. If accounting is being disabled, then @file
1211 * @file contains the file structure for the accounting file (may be NULL).
1212 * Return 0 if permission is granted.
1214 * Check permission before accessing the @table sysctl variable in the
1215 * manner specified by @op.
1216 * @table contains the ctl_table structure for the sysctl variable.
1217 * @op contains the operation (001 = search, 002 = write, 004 = read).
1218 * Return 0 if permission is granted.
1220 * Check permission before accessing the kernel message ring or changing
1221 * logging to the console.
1222 * See the syslog(2) manual page for an explanation of the @type values.
1223 * @type contains the type of action.
1224 * Return 0 if permission is granted.
1226 * Check permission to change the system time.
1227 * struct timespec and timezone are defined in include/linux/time.h
1228 * @ts contains new time
1229 * @tz contains new timezone
1230 * Return 0 if permission is granted.
1231 * @vm_enough_memory:
1232 * Check permissions for allocating a new virtual mapping.
1233 * @mm contains the mm struct it is being added to.
1234 * @pages contains the number of pages.
1235 * Return 0 if permission is granted.
1238 * Convert secid to security context.
1239 * @secid contains the security ID.
1240 * @secdata contains the pointer that stores the converted security context.
1242 * Convert security context to secid.
1243 * @secid contains the pointer to the generated security ID.
1244 * @secdata contains the security context.
1247 * Release the security context.
1248 * @secdata contains the security context.
1249 * @seclen contains the length of the security context.
1251 * Security hooks for Audit
1254 * Allocate and initialize an LSM audit rule structure.
1255 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1256 * @op contains the operator the rule uses.
1257 * @rulestr contains the context where the rule will be applied to.
1258 * @lsmrule contains a pointer to receive the result.
1259 * Return 0 if @lsmrule has been successfully set,
1260 * -EINVAL in case of an invalid rule.
1262 * @audit_rule_known:
1263 * Specifies whether given @rule contains any fields related to current LSM.
1264 * @rule contains the audit rule of interest.
1265 * Return 1 in case of relation found, 0 otherwise.
1267 * @audit_rule_match:
1268 * Determine if given @secid matches a rule previously approved
1269 * by @audit_rule_known.
1270 * @secid contains the security id in question.
1271 * @field contains the field which relates to current LSM.
1272 * @op contains the operator that will be used for matching.
1273 * @rule points to the audit rule that will be checked against.
1274 * @actx points to the audit context associated with the check.
1275 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1278 * Deallocate the LSM audit rule structure previously allocated by
1280 * @rule contains the allocated rule
1282 * This is the main security structure.
1284 struct security_operations {
1285 char name[SECURITY_NAME_MAX + 1];
1287 int (*ptrace_may_access) (struct task_struct *child, unsigned int mode);
1288 int (*ptrace_traceme) (struct task_struct *parent);
1289 int (*capget) (struct task_struct *target,
1290 kernel_cap_t *effective,
1291 kernel_cap_t *inheritable, kernel_cap_t *permitted);
1292 int (*capset) (struct cred *new,
1293 const struct cred *old,
1294 const kernel_cap_t *effective,
1295 const kernel_cap_t *inheritable,
1296 const kernel_cap_t *permitted);
1297 int (*capable) (struct task_struct *tsk, const struct cred *cred,
1298 int cap, int audit);
1299 int (*acct) (struct file *file);
1300 int (*sysctl) (struct ctl_table *table, int op);
1301 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1302 int (*quota_on) (struct dentry *dentry);
1303 int (*syslog) (int type);
1304 int (*settime) (struct timespec *ts, struct timezone *tz);
1305 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
1307 int (*bprm_set_creds) (struct linux_binprm *bprm);
1308 int (*bprm_check_security) (struct linux_binprm *bprm);
1309 int (*bprm_secureexec) (struct linux_binprm *bprm);
1310 void (*bprm_committing_creds) (struct linux_binprm *bprm);
1311 void (*bprm_committed_creds) (struct linux_binprm *bprm);
1313 int (*sb_alloc_security) (struct super_block *sb);
1314 void (*sb_free_security) (struct super_block *sb);
1315 int (*sb_copy_data) (char *orig, char *copy);
1316 int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
1317 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
1318 int (*sb_statfs) (struct dentry *dentry);
1319 int (*sb_mount) (char *dev_name, struct path *path,
1320 char *type, unsigned long flags, void *data);
1321 int (*sb_check_sb) (struct vfsmount *mnt, struct path *path);
1322 int (*sb_umount) (struct vfsmount *mnt, int flags);
1323 void (*sb_umount_close) (struct vfsmount *mnt);
1324 void (*sb_umount_busy) (struct vfsmount *mnt);
1325 void (*sb_post_remount) (struct vfsmount *mnt,
1326 unsigned long flags, void *data);
1327 void (*sb_post_addmount) (struct vfsmount *mnt,
1328 struct path *mountpoint);
1329 int (*sb_pivotroot) (struct path *old_path,
1330 struct path *new_path);
1331 void (*sb_post_pivotroot) (struct path *old_path,
1332 struct path *new_path);
1333 int (*sb_set_mnt_opts) (struct super_block *sb,
1334 struct security_mnt_opts *opts);
1335 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1336 struct super_block *newsb);
1337 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
1339 int (*inode_alloc_security) (struct inode *inode);
1340 void (*inode_free_security) (struct inode *inode);
1341 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1342 char **name, void **value, size_t *len);
1343 int (*inode_create) (struct inode *dir,
1344 struct dentry *dentry, int mode);
1345 int (*inode_link) (struct dentry *old_dentry,
1346 struct inode *dir, struct dentry *new_dentry);
1347 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1348 int (*inode_symlink) (struct inode *dir,
1349 struct dentry *dentry, const char *old_name);
1350 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
1351 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1352 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1353 int mode, dev_t dev);
1354 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1355 struct inode *new_dir, struct dentry *new_dentry);
1356 int (*inode_readlink) (struct dentry *dentry);
1357 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1358 int (*inode_permission) (struct inode *inode, int mask);
1359 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1360 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1361 void (*inode_delete) (struct inode *inode);
1362 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1363 const void *value, size_t size, int flags);
1364 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1365 const void *value, size_t size, int flags);
1366 int (*inode_getxattr) (struct dentry *dentry, const char *name);
1367 int (*inode_listxattr) (struct dentry *dentry);
1368 int (*inode_removexattr) (struct dentry *dentry, const char *name);
1369 int (*inode_need_killpriv) (struct dentry *dentry);
1370 int (*inode_killpriv) (struct dentry *dentry);
1371 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1372 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1373 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1374 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
1376 int (*file_permission) (struct file *file, int mask);
1377 int (*file_alloc_security) (struct file *file);
1378 void (*file_free_security) (struct file *file);
1379 int (*file_ioctl) (struct file *file, unsigned int cmd,
1381 int (*file_mmap) (struct file *file,
1382 unsigned long reqprot, unsigned long prot,
1383 unsigned long flags, unsigned long addr,
1384 unsigned long addr_only);
1385 int (*file_mprotect) (struct vm_area_struct *vma,
1386 unsigned long reqprot,
1387 unsigned long prot);
1388 int (*file_lock) (struct file *file, unsigned int cmd);
1389 int (*file_fcntl) (struct file *file, unsigned int cmd,
1391 int (*file_set_fowner) (struct file *file);
1392 int (*file_send_sigiotask) (struct task_struct *tsk,
1393 struct fown_struct *fown, int sig);
1394 int (*file_receive) (struct file *file);
1395 int (*dentry_open) (struct file *file, const struct cred *cred);
1397 int (*task_create) (unsigned long clone_flags);
1398 void (*cred_free) (struct cred *cred);
1399 int (*cred_prepare)(struct cred *new, const struct cred *old,
1401 void (*cred_commit)(struct cred *new, const struct cred *old);
1402 int (*kernel_act_as)(struct cred *new, u32 secid);
1403 int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
1404 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1405 int (*task_fix_setuid) (struct cred *new, const struct cred *old,
1407 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1408 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1409 int (*task_getpgid) (struct task_struct *p);
1410 int (*task_getsid) (struct task_struct *p);
1411 void (*task_getsecid) (struct task_struct *p, u32 *secid);
1412 int (*task_setgroups) (struct group_info *group_info);
1413 int (*task_setnice) (struct task_struct *p, int nice);
1414 int (*task_setioprio) (struct task_struct *p, int ioprio);
1415 int (*task_getioprio) (struct task_struct *p);
1416 int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim);
1417 int (*task_setscheduler) (struct task_struct *p, int policy,
1418 struct sched_param *lp);
1419 int (*task_getscheduler) (struct task_struct *p);
1420 int (*task_movememory) (struct task_struct *p);
1421 int (*task_kill) (struct task_struct *p,
1422 struct siginfo *info, int sig, u32 secid);
1423 int (*task_wait) (struct task_struct *p);
1424 int (*task_prctl) (int option, unsigned long arg2,
1425 unsigned long arg3, unsigned long arg4,
1426 unsigned long arg5);
1427 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
1429 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
1430 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
1432 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1433 void (*msg_msg_free_security) (struct msg_msg *msg);
1435 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1436 void (*msg_queue_free_security) (struct msg_queue *msq);
1437 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1438 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1439 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1440 struct msg_msg *msg, int msqflg);
1441 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1442 struct msg_msg *msg,
1443 struct task_struct *target,
1444 long type, int mode);
1446 int (*shm_alloc_security) (struct shmid_kernel *shp);
1447 void (*shm_free_security) (struct shmid_kernel *shp);
1448 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1449 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1450 int (*shm_shmat) (struct shmid_kernel *shp,
1451 char __user *shmaddr, int shmflg);
1453 int (*sem_alloc_security) (struct sem_array *sma);
1454 void (*sem_free_security) (struct sem_array *sma);
1455 int (*sem_associate) (struct sem_array *sma, int semflg);
1456 int (*sem_semctl) (struct sem_array *sma, int cmd);
1457 int (*sem_semop) (struct sem_array *sma,
1458 struct sembuf *sops, unsigned nsops, int alter);
1460 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1461 int (*netlink_recv) (struct sk_buff *skb, int cap);
1463 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1465 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1466 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1467 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
1468 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
1469 void (*release_secctx) (char *secdata, u32 seclen);
1471 #ifdef CONFIG_SECURITY_NETWORK
1472 int (*unix_stream_connect) (struct socket *sock,
1473 struct socket *other, struct sock *newsk);
1474 int (*unix_may_send) (struct socket *sock, struct socket *other);
1476 int (*socket_create) (int family, int type, int protocol, int kern);
1477 int (*socket_post_create) (struct socket *sock, int family,
1478 int type, int protocol, int kern);
1479 int (*socket_bind) (struct socket *sock,
1480 struct sockaddr *address, int addrlen);
1481 int (*socket_connect) (struct socket *sock,
1482 struct sockaddr *address, int addrlen);
1483 int (*socket_listen) (struct socket *sock, int backlog);
1484 int (*socket_accept) (struct socket *sock, struct socket *newsock);
1485 void (*socket_post_accept) (struct socket *sock,
1486 struct socket *newsock);
1487 int (*socket_sendmsg) (struct socket *sock,
1488 struct msghdr *msg, int size);
1489 int (*socket_recvmsg) (struct socket *sock,
1490 struct msghdr *msg, int size, int flags);
1491 int (*socket_getsockname) (struct socket *sock);
1492 int (*socket_getpeername) (struct socket *sock);
1493 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1494 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1495 int (*socket_shutdown) (struct socket *sock, int how);
1496 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
1497 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1498 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
1499 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
1500 void (*sk_free_security) (struct sock *sk);
1501 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
1502 void (*sk_getsecid) (struct sock *sk, u32 *secid);
1503 void (*sock_graft) (struct sock *sk, struct socket *parent);
1504 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1505 struct request_sock *req);
1506 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1507 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1508 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
1509 #endif /* CONFIG_SECURITY_NETWORK */
1511 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1512 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
1513 struct xfrm_user_sec_ctx *sec_ctx);
1514 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1515 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1516 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
1517 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
1518 struct xfrm_user_sec_ctx *sec_ctx,
1520 void (*xfrm_state_free_security) (struct xfrm_state *x);
1521 int (*xfrm_state_delete_security) (struct xfrm_state *x);
1522 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1523 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1524 struct xfrm_policy *xp,
1526 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
1527 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1529 /* key management security hooks */
1531 int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags);
1532 void (*key_free) (struct key *key);
1533 int (*key_permission) (key_ref_t key_ref,
1534 const struct cred *cred,
1536 int (*key_getsecurity)(struct key *key, char **_buffer);
1537 #endif /* CONFIG_KEYS */
1540 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1541 int (*audit_rule_known) (struct audit_krule *krule);
1542 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1543 struct audit_context *actx);
1544 void (*audit_rule_free) (void *lsmrule);
1545 #endif /* CONFIG_AUDIT */
1549 extern int security_init(void);
1550 extern int security_module_enable(struct security_operations *ops);
1551 extern int register_security(struct security_operations *ops);
1553 /* Security operations */
1554 int security_ptrace_may_access(struct task_struct *child, unsigned int mode);
1555 int security_ptrace_traceme(struct task_struct *parent);
1556 int security_capget(struct task_struct *target,
1557 kernel_cap_t *effective,
1558 kernel_cap_t *inheritable,
1559 kernel_cap_t *permitted);
1560 int security_capset(struct cred *new, const struct cred *old,
1561 const kernel_cap_t *effective,
1562 const kernel_cap_t *inheritable,
1563 const kernel_cap_t *permitted);
1564 int security_capable(int cap);
1565 int security_real_capable(struct task_struct *tsk, int cap);
1566 int security_real_capable_noaudit(struct task_struct *tsk, int cap);
1567 int security_acct(struct file *file);
1568 int security_sysctl(struct ctl_table *table, int op);
1569 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1570 int security_quota_on(struct dentry *dentry);
1571 int security_syslog(int type);
1572 int security_settime(struct timespec *ts, struct timezone *tz);
1573 int security_vm_enough_memory(long pages);
1574 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
1575 int security_vm_enough_memory_kern(long pages);
1576 int security_bprm_set_creds(struct linux_binprm *bprm);
1577 int security_bprm_check(struct linux_binprm *bprm);
1578 void security_bprm_committing_creds(struct linux_binprm *bprm);
1579 void security_bprm_committed_creds(struct linux_binprm *bprm);
1580 int security_bprm_secureexec(struct linux_binprm *bprm);
1581 int security_sb_alloc(struct super_block *sb);
1582 void security_sb_free(struct super_block *sb);
1583 int security_sb_copy_data(char *orig, char *copy);
1584 int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
1585 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
1586 int security_sb_statfs(struct dentry *dentry);
1587 int security_sb_mount(char *dev_name, struct path *path,
1588 char *type, unsigned long flags, void *data);
1589 int security_sb_check_sb(struct vfsmount *mnt, struct path *path);
1590 int security_sb_umount(struct vfsmount *mnt, int flags);
1591 void security_sb_umount_close(struct vfsmount *mnt);
1592 void security_sb_umount_busy(struct vfsmount *mnt);
1593 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data);
1594 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
1595 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
1596 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
1597 int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
1598 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1599 struct super_block *newsb);
1600 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
1602 int security_inode_alloc(struct inode *inode);
1603 void security_inode_free(struct inode *inode);
1604 int security_inode_init_security(struct inode *inode, struct inode *dir,
1605 char **name, void **value, size_t *len);
1606 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1607 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1608 struct dentry *new_dentry);
1609 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1610 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
1611 const char *old_name);
1612 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1613 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1614 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1615 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
1616 struct inode *new_dir, struct dentry *new_dentry);
1617 int security_inode_readlink(struct dentry *dentry);
1618 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
1619 int security_inode_permission(struct inode *inode, int mask);
1620 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1621 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
1622 void security_inode_delete(struct inode *inode);
1623 int security_inode_setxattr(struct dentry *dentry, const char *name,
1624 const void *value, size_t size, int flags);
1625 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1626 const void *value, size_t size, int flags);
1627 int security_inode_getxattr(struct dentry *dentry, const char *name);
1628 int security_inode_listxattr(struct dentry *dentry);
1629 int security_inode_removexattr(struct dentry *dentry, const char *name);
1630 int security_inode_need_killpriv(struct dentry *dentry);
1631 int security_inode_killpriv(struct dentry *dentry);
1632 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
1633 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1634 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
1635 void security_inode_getsecid(const struct inode *inode, u32 *secid);
1636 int security_file_permission(struct file *file, int mask);
1637 int security_file_alloc(struct file *file);
1638 void security_file_free(struct file *file);
1639 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1640 int security_file_mmap(struct file *file, unsigned long reqprot,
1641 unsigned long prot, unsigned long flags,
1642 unsigned long addr, unsigned long addr_only);
1643 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
1644 unsigned long prot);
1645 int security_file_lock(struct file *file, unsigned int cmd);
1646 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1647 int security_file_set_fowner(struct file *file);
1648 int security_file_send_sigiotask(struct task_struct *tsk,
1649 struct fown_struct *fown, int sig);
1650 int security_file_receive(struct file *file);
1651 int security_dentry_open(struct file *file, const struct cred *cred);
1652 int security_task_create(unsigned long clone_flags);
1653 void security_cred_free(struct cred *cred);
1654 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
1655 void security_commit_creds(struct cred *new, const struct cred *old);
1656 int security_kernel_act_as(struct cred *new, u32 secid);
1657 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
1658 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
1659 int security_task_fix_setuid(struct cred *new, const struct cred *old,
1661 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags);
1662 int security_task_setpgid(struct task_struct *p, pid_t pgid);
1663 int security_task_getpgid(struct task_struct *p);
1664 int security_task_getsid(struct task_struct *p);
1665 void security_task_getsecid(struct task_struct *p, u32 *secid);
1666 int security_task_setgroups(struct group_info *group_info);
1667 int security_task_setnice(struct task_struct *p, int nice);
1668 int security_task_setioprio(struct task_struct *p, int ioprio);
1669 int security_task_getioprio(struct task_struct *p);
1670 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim);
1671 int security_task_setscheduler(struct task_struct *p,
1672 int policy, struct sched_param *lp);
1673 int security_task_getscheduler(struct task_struct *p);
1674 int security_task_movememory(struct task_struct *p);
1675 int security_task_kill(struct task_struct *p, struct siginfo *info,
1676 int sig, u32 secid);
1677 int security_task_wait(struct task_struct *p);
1678 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1679 unsigned long arg4, unsigned long arg5);
1680 void security_task_to_inode(struct task_struct *p, struct inode *inode);
1681 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
1682 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
1683 int security_msg_msg_alloc(struct msg_msg *msg);
1684 void security_msg_msg_free(struct msg_msg *msg);
1685 int security_msg_queue_alloc(struct msg_queue *msq);
1686 void security_msg_queue_free(struct msg_queue *msq);
1687 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1688 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1689 int security_msg_queue_msgsnd(struct msg_queue *msq,
1690 struct msg_msg *msg, int msqflg);
1691 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1692 struct task_struct *target, long type, int mode);
1693 int security_shm_alloc(struct shmid_kernel *shp);
1694 void security_shm_free(struct shmid_kernel *shp);
1695 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1696 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1697 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1698 int security_sem_alloc(struct sem_array *sma);
1699 void security_sem_free(struct sem_array *sma);
1700 int security_sem_associate(struct sem_array *sma, int semflg);
1701 int security_sem_semctl(struct sem_array *sma, int cmd);
1702 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1703 unsigned nsops, int alter);
1704 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
1705 int security_getprocattr(struct task_struct *p, char *name, char **value);
1706 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1707 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1708 int security_netlink_recv(struct sk_buff *skb, int cap);
1709 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
1710 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
1711 void security_release_secctx(char *secdata, u32 seclen);
1713 #else /* CONFIG_SECURITY */
1714 struct security_mnt_opts {
1717 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1721 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1726 * This is the default capabilities functionality. Most of these functions
1727 * are just stubbed out, but a few must call the proper capable code.
1730 static inline int security_init(void)
1735 static inline int security_ptrace_may_access(struct task_struct *child,
1738 return cap_ptrace_may_access(child, mode);
1741 static inline int security_ptrace_traceme(struct task_struct *parent)
1743 return cap_ptrace_traceme(parent);
1746 static inline int security_capget(struct task_struct *target,
1747 kernel_cap_t *effective,
1748 kernel_cap_t *inheritable,
1749 kernel_cap_t *permitted)
1751 return cap_capget(target, effective, inheritable, permitted);
1754 static inline int security_capset(struct cred *new,
1755 const struct cred *old,
1756 const kernel_cap_t *effective,
1757 const kernel_cap_t *inheritable,
1758 const kernel_cap_t *permitted)
1760 return cap_capset(new, old, effective, inheritable, permitted);
1763 static inline int security_capable(int cap)
1765 return cap_capable(current, current_cred(), cap, SECURITY_CAP_AUDIT);
1768 static inline int security_real_capable(struct task_struct *tsk, int cap)
1773 ret = cap_capable(tsk, __task_cred(tsk), cap, SECURITY_CAP_AUDIT);
1779 int security_real_capable_noaudit(struct task_struct *tsk, int cap)
1784 ret = cap_capable(tsk, __task_cred(tsk), cap,
1785 SECURITY_CAP_NOAUDIT);
1790 static inline int security_acct(struct file *file)
1795 static inline int security_sysctl(struct ctl_table *table, int op)
1800 static inline int security_quotactl(int cmds, int type, int id,
1801 struct super_block *sb)
1806 static inline int security_quota_on(struct dentry *dentry)
1811 static inline int security_syslog(int type)
1813 return cap_syslog(type);
1816 static inline int security_settime(struct timespec *ts, struct timezone *tz)
1818 return cap_settime(ts, tz);
1821 static inline int security_vm_enough_memory(long pages)
1823 WARN_ON(current->mm == NULL);
1824 return cap_vm_enough_memory(current->mm, pages);
1827 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1829 WARN_ON(mm == NULL);
1830 return cap_vm_enough_memory(mm, pages);
1833 static inline int security_vm_enough_memory_kern(long pages)
1835 /* If current->mm is a kernel thread then we will pass NULL,
1836 for this specific case that is fine */
1837 return cap_vm_enough_memory(current->mm, pages);
1840 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
1842 return cap_bprm_set_creds(bprm);
1845 static inline int security_bprm_check(struct linux_binprm *bprm)
1850 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
1854 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
1858 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
1860 return cap_bprm_secureexec(bprm);
1863 static inline int security_sb_alloc(struct super_block *sb)
1868 static inline void security_sb_free(struct super_block *sb)
1871 static inline int security_sb_copy_data(char *orig, char *copy)
1876 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
1881 static inline int security_sb_show_options(struct seq_file *m,
1882 struct super_block *sb)
1887 static inline int security_sb_statfs(struct dentry *dentry)
1892 static inline int security_sb_mount(char *dev_name, struct path *path,
1893 char *type, unsigned long flags,
1899 static inline int security_sb_check_sb(struct vfsmount *mnt,
1905 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
1910 static inline void security_sb_umount_close(struct vfsmount *mnt)
1913 static inline void security_sb_umount_busy(struct vfsmount *mnt)
1916 static inline void security_sb_post_remount(struct vfsmount *mnt,
1917 unsigned long flags, void *data)
1920 static inline void security_sb_post_addmount(struct vfsmount *mnt,
1921 struct path *mountpoint)
1924 static inline int security_sb_pivotroot(struct path *old_path,
1925 struct path *new_path)
1930 static inline void security_sb_post_pivotroot(struct path *old_path,
1931 struct path *new_path)
1934 static inline int security_sb_set_mnt_opts(struct super_block *sb,
1935 struct security_mnt_opts *opts)
1940 static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1941 struct super_block *newsb)
1944 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
1949 static inline int security_inode_alloc(struct inode *inode)
1954 static inline void security_inode_free(struct inode *inode)
1957 static inline int security_inode_init_security(struct inode *inode,
1966 static inline int security_inode_create(struct inode *dir,
1967 struct dentry *dentry,
1973 static inline int security_inode_link(struct dentry *old_dentry,
1975 struct dentry *new_dentry)
1980 static inline int security_inode_unlink(struct inode *dir,
1981 struct dentry *dentry)
1986 static inline int security_inode_symlink(struct inode *dir,
1987 struct dentry *dentry,
1988 const char *old_name)
1993 static inline int security_inode_mkdir(struct inode *dir,
1994 struct dentry *dentry,
2000 static inline int security_inode_rmdir(struct inode *dir,
2001 struct dentry *dentry)
2006 static inline int security_inode_mknod(struct inode *dir,
2007 struct dentry *dentry,
2008 int mode, dev_t dev)
2013 static inline int security_inode_rename(struct inode *old_dir,
2014 struct dentry *old_dentry,
2015 struct inode *new_dir,
2016 struct dentry *new_dentry)
2021 static inline int security_inode_readlink(struct dentry *dentry)
2026 static inline int security_inode_follow_link(struct dentry *dentry,
2027 struct nameidata *nd)
2032 static inline int security_inode_permission(struct inode *inode, int mask)
2037 static inline int security_inode_setattr(struct dentry *dentry,
2043 static inline int security_inode_getattr(struct vfsmount *mnt,
2044 struct dentry *dentry)
2049 static inline void security_inode_delete(struct inode *inode)
2052 static inline int security_inode_setxattr(struct dentry *dentry,
2053 const char *name, const void *value, size_t size, int flags)
2055 return cap_inode_setxattr(dentry, name, value, size, flags);
2058 static inline void security_inode_post_setxattr(struct dentry *dentry,
2059 const char *name, const void *value, size_t size, int flags)
2062 static inline int security_inode_getxattr(struct dentry *dentry,
2068 static inline int security_inode_listxattr(struct dentry *dentry)
2073 static inline int security_inode_removexattr(struct dentry *dentry,
2076 return cap_inode_removexattr(dentry, name);
2079 static inline int security_inode_need_killpriv(struct dentry *dentry)
2081 return cap_inode_need_killpriv(dentry);
2084 static inline int security_inode_killpriv(struct dentry *dentry)
2086 return cap_inode_killpriv(dentry);
2089 static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
2094 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2099 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2104 static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2109 static inline int security_file_permission(struct file *file, int mask)
2114 static inline int security_file_alloc(struct file *file)
2119 static inline void security_file_free(struct file *file)
2122 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2128 static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2130 unsigned long flags,
2132 unsigned long addr_only)
2137 static inline int security_file_mprotect(struct vm_area_struct *vma,
2138 unsigned long reqprot,
2144 static inline int security_file_lock(struct file *file, unsigned int cmd)
2149 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2155 static inline int security_file_set_fowner(struct file *file)
2160 static inline int security_file_send_sigiotask(struct task_struct *tsk,
2161 struct fown_struct *fown,
2167 static inline int security_file_receive(struct file *file)
2172 static inline int security_dentry_open(struct file *file,
2173 const struct cred *cred)
2178 static inline int security_task_create(unsigned long clone_flags)
2183 static inline void security_cred_free(struct cred *cred)
2186 static inline int security_prepare_creds(struct cred *new,
2187 const struct cred *old,
2193 static inline void security_commit_creds(struct cred *new,
2194 const struct cred *old)
2198 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
2203 static inline int security_kernel_create_files_as(struct cred *cred,
2204 struct inode *inode)
2209 static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
2215 static inline int security_task_fix_setuid(struct cred *new,
2216 const struct cred *old,
2219 return cap_task_fix_setuid(new, old, flags);
2222 static inline int security_task_setgid(gid_t id0, gid_t id1, gid_t id2,
2228 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
2233 static inline int security_task_getpgid(struct task_struct *p)
2238 static inline int security_task_getsid(struct task_struct *p)
2243 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
2248 static inline int security_task_setgroups(struct group_info *group_info)
2253 static inline int security_task_setnice(struct task_struct *p, int nice)
2255 return cap_task_setnice(p, nice);
2258 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
2260 return cap_task_setioprio(p, ioprio);
2263 static inline int security_task_getioprio(struct task_struct *p)
2268 static inline int security_task_setrlimit(unsigned int resource,
2269 struct rlimit *new_rlim)
2274 static inline int security_task_setscheduler(struct task_struct *p,
2276 struct sched_param *lp)
2278 return cap_task_setscheduler(p, policy, lp);
2281 static inline int security_task_getscheduler(struct task_struct *p)
2286 static inline int security_task_movememory(struct task_struct *p)
2291 static inline int security_task_kill(struct task_struct *p,
2292 struct siginfo *info, int sig,
2298 static inline int security_task_wait(struct task_struct *p)
2303 static inline int security_task_prctl(int option, unsigned long arg2,
2308 return cap_task_prctl(option, arg2, arg3, arg3, arg5);
2311 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2314 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2320 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2325 static inline int security_msg_msg_alloc(struct msg_msg *msg)
2330 static inline void security_msg_msg_free(struct msg_msg *msg)
2333 static inline int security_msg_queue_alloc(struct msg_queue *msq)
2338 static inline void security_msg_queue_free(struct msg_queue *msq)
2341 static inline int security_msg_queue_associate(struct msg_queue *msq,
2347 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
2352 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2353 struct msg_msg *msg, int msqflg)
2358 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2359 struct msg_msg *msg,
2360 struct task_struct *target,
2361 long type, int mode)
2366 static inline int security_shm_alloc(struct shmid_kernel *shp)
2371 static inline void security_shm_free(struct shmid_kernel *shp)
2374 static inline int security_shm_associate(struct shmid_kernel *shp,
2380 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
2385 static inline int security_shm_shmat(struct shmid_kernel *shp,
2386 char __user *shmaddr, int shmflg)
2391 static inline int security_sem_alloc(struct sem_array *sma)
2396 static inline void security_sem_free(struct sem_array *sma)
2399 static inline int security_sem_associate(struct sem_array *sma, int semflg)
2404 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
2409 static inline int security_sem_semop(struct sem_array *sma,
2410 struct sembuf *sops, unsigned nsops,
2416 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
2419 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
2424 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2429 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
2431 return cap_netlink_send(sk, skb);
2434 static inline int security_netlink_recv(struct sk_buff *skb, int cap)
2436 return cap_netlink_recv(skb, cap);
2439 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2444 static inline int security_secctx_to_secid(const char *secdata,
2451 static inline void security_release_secctx(char *secdata, u32 seclen)
2454 #endif /* CONFIG_SECURITY */
2456 #ifdef CONFIG_SECURITY_NETWORK
2458 int security_unix_stream_connect(struct socket *sock, struct socket *other,
2459 struct sock *newsk);
2460 int security_unix_may_send(struct socket *sock, struct socket *other);
2461 int security_socket_create(int family, int type, int protocol, int kern);
2462 int security_socket_post_create(struct socket *sock, int family,
2463 int type, int protocol, int kern);
2464 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2465 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2466 int security_socket_listen(struct socket *sock, int backlog);
2467 int security_socket_accept(struct socket *sock, struct socket *newsock);
2468 void security_socket_post_accept(struct socket *sock, struct socket *newsock);
2469 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2470 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2471 int size, int flags);
2472 int security_socket_getsockname(struct socket *sock);
2473 int security_socket_getpeername(struct socket *sock);
2474 int security_socket_getsockopt(struct socket *sock, int level, int optname);
2475 int security_socket_setsockopt(struct socket *sock, int level, int optname);
2476 int security_socket_shutdown(struct socket *sock, int how);
2477 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2478 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2479 int __user *optlen, unsigned len);
2480 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2481 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2482 void security_sk_free(struct sock *sk);
2483 void security_sk_clone(const struct sock *sk, struct sock *newsk);
2484 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2485 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2486 void security_sock_graft(struct sock*sk, struct socket *parent);
2487 int security_inet_conn_request(struct sock *sk,
2488 struct sk_buff *skb, struct request_sock *req);
2489 void security_inet_csk_clone(struct sock *newsk,
2490 const struct request_sock *req);
2491 void security_inet_conn_established(struct sock *sk,
2492 struct sk_buff *skb);
2494 #else /* CONFIG_SECURITY_NETWORK */
2495 static inline int security_unix_stream_connect(struct socket *sock,
2496 struct socket *other,
2502 static inline int security_unix_may_send(struct socket *sock,
2503 struct socket *other)
2508 static inline int security_socket_create(int family, int type,
2509 int protocol, int kern)
2514 static inline int security_socket_post_create(struct socket *sock,
2517 int protocol, int kern)
2522 static inline int security_socket_bind(struct socket *sock,
2523 struct sockaddr *address,
2529 static inline int security_socket_connect(struct socket *sock,
2530 struct sockaddr *address,
2536 static inline int security_socket_listen(struct socket *sock, int backlog)
2541 static inline int security_socket_accept(struct socket *sock,
2542 struct socket *newsock)
2547 static inline void security_socket_post_accept(struct socket *sock,
2548 struct socket *newsock)
2552 static inline int security_socket_sendmsg(struct socket *sock,
2553 struct msghdr *msg, int size)
2558 static inline int security_socket_recvmsg(struct socket *sock,
2559 struct msghdr *msg, int size,
2565 static inline int security_socket_getsockname(struct socket *sock)
2570 static inline int security_socket_getpeername(struct socket *sock)
2575 static inline int security_socket_getsockopt(struct socket *sock,
2576 int level, int optname)
2581 static inline int security_socket_setsockopt(struct socket *sock,
2582 int level, int optname)
2587 static inline int security_socket_shutdown(struct socket *sock, int how)
2591 static inline int security_sock_rcv_skb(struct sock *sk,
2592 struct sk_buff *skb)
2597 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2598 int __user *optlen, unsigned len)
2600 return -ENOPROTOOPT;
2603 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
2605 return -ENOPROTOOPT;
2608 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
2613 static inline void security_sk_free(struct sock *sk)
2617 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2621 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
2625 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2629 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
2633 static inline int security_inet_conn_request(struct sock *sk,
2634 struct sk_buff *skb, struct request_sock *req)
2639 static inline void security_inet_csk_clone(struct sock *newsk,
2640 const struct request_sock *req)
2644 static inline void security_inet_conn_established(struct sock *sk,
2645 struct sk_buff *skb)
2648 #endif /* CONFIG_SECURITY_NETWORK */
2650 #ifdef CONFIG_SECURITY_NETWORK_XFRM
2652 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2653 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2654 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2655 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
2656 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2657 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2658 struct xfrm_sec_ctx *polsec, u32 secid);
2659 int security_xfrm_state_delete(struct xfrm_state *x);
2660 void security_xfrm_state_free(struct xfrm_state *x);
2661 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
2662 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2663 struct xfrm_policy *xp, struct flowi *fl);
2664 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2665 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
2667 #else /* CONFIG_SECURITY_NETWORK_XFRM */
2669 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
2674 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
2679 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
2683 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
2688 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2689 struct xfrm_user_sec_ctx *sec_ctx)
2694 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2695 struct xfrm_sec_ctx *polsec, u32 secid)
2700 static inline void security_xfrm_state_free(struct xfrm_state *x)
2704 static inline int security_xfrm_state_delete(struct xfrm_state *x)
2709 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
2714 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2715 struct xfrm_policy *xp, struct flowi *fl)
2720 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
2725 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2729 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
2732 #ifdef CONFIG_SECURITY
2734 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
2735 void security_key_free(struct key *key);
2736 int security_key_permission(key_ref_t key_ref,
2737 const struct cred *cred, key_perm_t perm);
2738 int security_key_getsecurity(struct key *key, char **_buffer);
2742 static inline int security_key_alloc(struct key *key,
2743 const struct cred *cred,
2744 unsigned long flags)
2749 static inline void security_key_free(struct key *key)
2753 static inline int security_key_permission(key_ref_t key_ref,
2754 const struct cred *cred,
2760 static inline int security_key_getsecurity(struct key *key, char **_buffer)
2767 #endif /* CONFIG_KEYS */
2770 #ifdef CONFIG_SECURITY
2771 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2772 int security_audit_rule_known(struct audit_krule *krule);
2773 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2774 struct audit_context *actx);
2775 void security_audit_rule_free(void *lsmrule);
2779 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2785 static inline int security_audit_rule_known(struct audit_krule *krule)
2790 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2791 void *lsmrule, struct audit_context *actx)
2796 static inline void security_audit_rule_free(void *lsmrule)
2799 #endif /* CONFIG_SECURITY */
2800 #endif /* CONFIG_AUDIT */
2802 #ifdef CONFIG_SECURITYFS
2804 extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2805 struct dentry *parent, void *data,
2806 const struct file_operations *fops);
2807 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2808 extern void securityfs_remove(struct dentry *dentry);
2810 #else /* CONFIG_SECURITYFS */
2812 static inline struct dentry *securityfs_create_dir(const char *name,
2813 struct dentry *parent)
2815 return ERR_PTR(-ENODEV);
2818 static inline struct dentry *securityfs_create_file(const char *name,
2820 struct dentry *parent,
2822 const struct file_operations *fops)
2824 return ERR_PTR(-ENODEV);
2827 static inline void securityfs_remove(struct dentry *dentry)
2832 #endif /* ! __LINUX_SECURITY_H */