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
44 * These functions are in security/capability.c and are used
45 * as the default capabilities functions
47 extern int cap_capable(struct task_struct *tsk, int cap);
48 extern int cap_settime(struct timespec *ts, struct timezone *tz);
49 extern int cap_ptrace_may_access(struct task_struct *child, unsigned int mode);
50 extern int cap_ptrace_traceme(struct task_struct *parent);
51 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
52 extern int cap_capset_check(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
53 extern void cap_capset_set(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
54 extern int cap_bprm_set_security(struct linux_binprm *bprm);
55 extern void cap_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
56 extern int cap_bprm_secureexec(struct linux_binprm *bprm);
57 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
58 const void *value, size_t size, int flags);
59 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
60 extern int cap_inode_need_killpriv(struct dentry *dentry);
61 extern int cap_inode_killpriv(struct dentry *dentry);
62 extern int cap_task_post_setuid(uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags);
63 extern void cap_task_reparent_to_init(struct task_struct *p);
64 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
65 unsigned long arg4, unsigned long arg5, long *rc_p);
66 extern int cap_task_setscheduler(struct task_struct *p, int policy, struct sched_param *lp);
67 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
68 extern int cap_task_setnice(struct task_struct *p, int nice);
69 extern int cap_syslog(int type);
70 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
82 struct xfrm_user_sec_ctx;
85 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
86 extern int cap_netlink_recv(struct sk_buff *skb, int cap);
88 extern unsigned long mmap_min_addr;
90 * Values used in the task_security_ops calls
92 /* setuid or setgid, id0 == uid or gid */
93 #define LSM_SETID_ID 1
95 /* setreuid or setregid, id0 == real, id1 == eff */
96 #define LSM_SETID_RE 2
98 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
99 #define LSM_SETID_RES 4
101 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
102 #define LSM_SETID_FS 8
104 /* forward declares to avoid warnings */
108 /* bprm_apply_creds unsafe reasons */
109 #define LSM_UNSAFE_SHARE 1
110 #define LSM_UNSAFE_PTRACE 2
111 #define LSM_UNSAFE_PTRACE_CAP 4
113 #ifdef CONFIG_SECURITY
115 struct security_mnt_opts {
121 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
123 opts->mnt_opts = NULL;
124 opts->mnt_opts_flags = NULL;
125 opts->num_mnt_opts = 0;
128 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
132 for (i = 0; i < opts->num_mnt_opts; i++)
133 kfree(opts->mnt_opts[i]);
134 kfree(opts->mnt_opts);
135 opts->mnt_opts = NULL;
136 kfree(opts->mnt_opts_flags);
137 opts->mnt_opts_flags = NULL;
138 opts->num_mnt_opts = 0;
142 * struct security_operations - main security structure
144 * Security module identifier.
147 * A string that acts as a unique identifeir for the LSM with max number
148 * of characters = SECURITY_NAME_MAX.
150 * Security hooks for program execution operations.
152 * @bprm_alloc_security:
153 * Allocate and attach a security structure to the @bprm->security field.
154 * The security field is initialized to NULL when the bprm structure is
156 * @bprm contains the linux_binprm structure to be modified.
157 * Return 0 if operation was successful.
158 * @bprm_free_security:
159 * @bprm contains the linux_binprm structure to be modified.
160 * Deallocate and clear the @bprm->security field.
162 * Compute and set the security attributes of a process being transformed
163 * by an execve operation based on the old attributes (current->security)
164 * and the information saved in @bprm->security by the set_security hook.
165 * Since this hook function (and its caller) are void, this hook can not
166 * return an error. However, it can leave the security attributes of the
167 * process unchanged if an access failure occurs at this point.
168 * bprm_apply_creds is called under task_lock. @unsafe indicates various
169 * reasons why it may be unsafe to change security state.
170 * @bprm contains the linux_binprm structure.
171 * @bprm_post_apply_creds:
172 * Runs after bprm_apply_creds with the task_lock dropped, so that
173 * functions which cannot be called safely under the task_lock can
174 * be used. This hook is a good place to perform state changes on
175 * the process such as closing open file descriptors to which access
176 * is no longer granted if the attributes were changed.
177 * Note that a security module might need to save state between
178 * bprm_apply_creds and bprm_post_apply_creds to store the decision
179 * on whether the process may proceed.
180 * @bprm contains the linux_binprm structure.
181 * @bprm_set_security:
182 * Save security information in the bprm->security field, typically based
183 * on information about the bprm->file, for later use by the apply_creds
184 * hook. This hook may also optionally check permissions (e.g. for
185 * transitions between security domains).
186 * This hook may be called multiple times during a single execve, e.g. for
187 * interpreters. The hook can tell whether it has already been called by
188 * checking to see if @bprm->security is non-NULL. If so, then the hook
189 * may decide either to retain the security information saved earlier or
191 * @bprm contains the linux_binprm structure.
192 * Return 0 if the hook is successful and permission is granted.
193 * @bprm_check_security:
194 * This hook mediates the point when a search for a binary handler will
195 * begin. It allows a check the @bprm->security value which is set in
196 * the preceding set_security call. The primary difference from
197 * set_security is that the argv list and envp list are reliably
198 * available in @bprm. This hook may be called multiple times
199 * during a single execve; and in each pass set_security is called
201 * @bprm contains the linux_binprm structure.
202 * Return 0 if the hook is successful and permission is granted.
204 * Return a boolean value (0 or 1) indicating whether a "secure exec"
205 * is required. The flag is passed in the auxiliary table
206 * on the initial stack to the ELF interpreter to indicate whether libc
207 * should enable secure mode.
208 * @bprm contains the linux_binprm structure.
210 * Security hooks for filesystem operations.
212 * @sb_alloc_security:
213 * Allocate and attach a security structure to the sb->s_security field.
214 * The s_security field is initialized to NULL when the structure is
216 * @sb contains the super_block structure to be modified.
217 * Return 0 if operation was successful.
219 * Deallocate and clear the sb->s_security field.
220 * @sb contains the super_block structure to be modified.
222 * Check permission before obtaining filesystem statistics for the @mnt
224 * @dentry is a handle on the superblock for the filesystem.
225 * Return 0 if permission is granted.
227 * Check permission before an object specified by @dev_name is mounted on
228 * the mount point named by @nd. For an ordinary mount, @dev_name
229 * identifies a device if the file system type requires a device. For a
230 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
231 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
232 * pathname of the object being mounted.
233 * @dev_name contains the name for object being mounted.
234 * @path contains the path for mount point object.
235 * @type contains the filesystem type.
236 * @flags contains the mount flags.
237 * @data contains the filesystem-specific data.
238 * Return 0 if permission is granted.
240 * Allow mount option data to be copied prior to parsing by the filesystem,
241 * so that the security module can extract security-specific mount
242 * options cleanly (a filesystem may modify the data e.g. with strsep()).
243 * This also allows the original mount data to be stripped of security-
244 * specific options to avoid having to make filesystems aware of them.
245 * @type the type of filesystem being mounted.
246 * @orig the original mount data copied from userspace.
247 * @copy copied data which will be passed to the security module.
248 * Returns 0 if the copy was successful.
250 * Check permission before the device with superblock @mnt->sb is mounted
251 * on the mount point named by @nd.
252 * @mnt contains the vfsmount for device being mounted.
253 * @path contains the path for the mount point.
254 * Return 0 if permission is granted.
256 * Check permission before the @mnt file system is unmounted.
257 * @mnt contains the mounted file system.
258 * @flags contains the unmount flags, e.g. MNT_FORCE.
259 * Return 0 if permission is granted.
261 * Close any files in the @mnt mounted filesystem that are held open by
262 * the security module. This hook is called during an umount operation
263 * prior to checking whether the filesystem is still busy.
264 * @mnt contains the mounted filesystem.
266 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
267 * any files that were closed by umount_close. This hook is called during
268 * an umount operation if the umount fails after a call to the
270 * @mnt contains the mounted filesystem.
272 * Update the security module's state when a filesystem is remounted.
273 * This hook is only called if the remount was successful.
274 * @mnt contains the mounted file system.
275 * @flags contains the new filesystem flags.
276 * @data contains the filesystem-specific data.
278 * Update the security module's state when a filesystem is mounted.
279 * This hook is called any time a mount is successfully grafetd to
281 * @mnt contains the mounted filesystem.
282 * @mountpoint contains the path for the mount point.
284 * Check permission before pivoting the root filesystem.
285 * @old_path contains the path for the new location of the current root (put_old).
286 * @new_path contains the path for the new root (new_root).
287 * Return 0 if permission is granted.
288 * @sb_post_pivotroot:
289 * Update module state after a successful pivot.
290 * @old_path contains the path for the old root.
291 * @new_path contains the path for the new root.
293 * Set the security relevant mount options used for a superblock
294 * @sb the superblock to set security mount options for
295 * @opts binary data structure containing all lsm mount data
296 * @sb_clone_mnt_opts:
297 * Copy all security options from a given superblock to another
298 * @oldsb old superblock which contain information to clone
299 * @newsb new superblock which needs filled in
300 * @sb_parse_opts_str:
301 * Parse a string of security data filling in the opts structure
302 * @options string containing all mount options known by the LSM
303 * @opts binary data structure usable by the LSM
305 * Security hooks for inode operations.
307 * @inode_alloc_security:
308 * Allocate and attach a security structure to @inode->i_security. The
309 * i_security field is initialized to NULL when the inode structure is
311 * @inode contains the inode structure.
312 * Return 0 if operation was successful.
313 * @inode_free_security:
314 * @inode contains the inode structure.
315 * Deallocate the inode security structure and set @inode->i_security to
317 * @inode_init_security:
318 * Obtain the security attribute name suffix and value to set on a newly
319 * created inode and set up the incore security field for the new inode.
320 * This hook is called by the fs code as part of the inode creation
321 * transaction and provides for atomic labeling of the inode, unlike
322 * the post_create/mkdir/... hooks called by the VFS. The hook function
323 * is expected to allocate the name and value via kmalloc, with the caller
324 * being responsible for calling kfree after using them.
325 * If the security module does not use security attributes or does
326 * not wish to put a security attribute on this particular inode,
327 * then it should return -EOPNOTSUPP to skip this processing.
328 * @inode contains the inode structure of the newly created inode.
329 * @dir contains the inode structure of the parent directory.
330 * @name will be set to the allocated name suffix (e.g. selinux).
331 * @value will be set to the allocated attribute value.
332 * @len will be set to the length of the value.
333 * Returns 0 if @name and @value have been successfully set,
334 * -EOPNOTSUPP if no security attribute is needed, or
335 * -ENOMEM on memory allocation failure.
337 * Check permission to create a regular file.
338 * @dir contains inode structure of the parent of the new file.
339 * @dentry contains the dentry structure for the file to be created.
340 * @mode contains the file mode of the file to be created.
341 * Return 0 if permission is granted.
343 * Check permission before creating a new hard link to a file.
344 * @old_dentry contains the dentry structure for an existing link to the file.
345 * @dir contains the inode structure of the parent directory of the new link.
346 * @new_dentry contains the dentry structure for the new link.
347 * Return 0 if permission is granted.
349 * Check the permission to remove a hard link to a file.
350 * @dir contains the inode structure of parent directory of the file.
351 * @dentry contains the dentry structure for file to be unlinked.
352 * Return 0 if permission is granted.
354 * Check the permission to create a symbolic link to a file.
355 * @dir contains the inode structure of parent directory of the symbolic link.
356 * @dentry contains the dentry structure of the symbolic link.
357 * @old_name contains the pathname of file.
358 * Return 0 if permission is granted.
360 * Check permissions to create a new directory in the existing directory
361 * associated with inode strcture @dir.
362 * @dir containst the inode structure of parent of the directory to be created.
363 * @dentry contains the dentry structure of new directory.
364 * @mode contains the mode of new directory.
365 * Return 0 if permission is granted.
367 * Check the permission to remove a directory.
368 * @dir contains the inode structure of parent of the directory to be removed.
369 * @dentry contains the dentry structure of directory to be removed.
370 * Return 0 if permission is granted.
372 * Check permissions when creating a special file (or a socket or a fifo
373 * file created via the mknod system call). Note that if mknod operation
374 * is being done for a regular file, then the create hook will be called
376 * @dir contains the inode structure of parent of the new file.
377 * @dentry contains the dentry structure of the new file.
378 * @mode contains the mode of the new file.
379 * @dev contains the device number.
380 * Return 0 if permission is granted.
382 * Check for permission to rename a file or directory.
383 * @old_dir contains the inode structure for parent of the old link.
384 * @old_dentry contains the dentry structure of the old link.
385 * @new_dir contains the inode structure for parent of the new link.
386 * @new_dentry contains the dentry structure of the new link.
387 * Return 0 if permission is granted.
389 * Check the permission to read the symbolic link.
390 * @dentry contains the dentry structure for the file link.
391 * Return 0 if permission is granted.
392 * @inode_follow_link:
393 * Check permission to follow a symbolic link when looking up a pathname.
394 * @dentry contains the dentry structure for the link.
395 * @nd contains the nameidata structure for the parent directory.
396 * Return 0 if permission is granted.
398 * Check permission before accessing an inode. This hook is called by the
399 * existing Linux permission function, so a security module can use it to
400 * provide additional checking for existing Linux permission checks.
401 * Notice that this hook is called when a file is opened (as well as many
402 * other operations), whereas the file_security_ops permission hook is
403 * called when the actual read/write operations are performed.
404 * @inode contains the inode structure to check.
405 * @mask contains the permission mask.
406 * @nd contains the nameidata (may be NULL).
407 * Return 0 if permission is granted.
409 * Check permission before setting file attributes. Note that the kernel
410 * call to notify_change is performed from several locations, whenever
411 * file attributes change (such as when a file is truncated, chown/chmod
412 * operations, transferring disk quotas, etc).
413 * @dentry contains the dentry structure for the file.
414 * @attr is the iattr structure containing the new file attributes.
415 * Return 0 if permission is granted.
417 * Check permission before obtaining file attributes.
418 * @mnt is the vfsmount where the dentry was looked up
419 * @dentry contains the dentry structure for the file.
420 * Return 0 if permission is granted.
422 * @inode contains the inode structure for deleted inode.
423 * This hook is called when a deleted inode is released (i.e. an inode
424 * with no hard links has its use count drop to zero). A security module
425 * can use this hook to release any persistent label associated with the
428 * Check permission before setting the extended attributes
429 * @value identified by @name for @dentry.
430 * Return 0 if permission is granted.
431 * @inode_post_setxattr:
432 * Update inode security field after successful setxattr operation.
433 * @value identified by @name for @dentry.
435 * Check permission before obtaining the extended attributes
436 * identified by @name for @dentry.
437 * Return 0 if permission is granted.
439 * Check permission before obtaining the list of extended attribute
441 * Return 0 if permission is granted.
442 * @inode_removexattr:
443 * Check permission before removing the extended attribute
444 * identified by @name for @dentry.
445 * Return 0 if permission is granted.
446 * @inode_getsecurity:
447 * Retrieve a copy of the extended attribute representation of the
448 * security label associated with @name for @inode via @buffer. Note that
449 * @name is the remainder of the attribute name after the security prefix
450 * has been removed. @alloc is used to specify of the call should return a
451 * value via the buffer or just the value length Return size of buffer on
453 * @inode_setsecurity:
454 * Set the security label associated with @name for @inode from the
455 * extended attribute value @value. @size indicates the size of the
456 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
457 * Note that @name is the remainder of the attribute name after the
458 * security. prefix has been removed.
459 * Return 0 on success.
460 * @inode_listsecurity:
461 * Copy the extended attribute names for the security labels
462 * associated with @inode into @buffer. The maximum size of @buffer
463 * is specified by @buffer_size. @buffer may be NULL to request
464 * the size of the buffer required.
465 * Returns number of bytes used/required on success.
466 * @inode_need_killpriv:
467 * Called when an inode has been changed.
468 * @dentry is the dentry being changed.
469 * Return <0 on error to abort the inode change operation.
470 * Return 0 if inode_killpriv does not need to be called.
471 * Return >0 if inode_killpriv does need to be called.
473 * The setuid bit is being removed. Remove similar security labels.
474 * Called with the dentry->d_inode->i_mutex held.
475 * @dentry is the dentry being changed.
476 * Return 0 on success. If error is returned, then the operation
477 * causing setuid bit removal is failed.
479 * Get the secid associated with the node.
480 * @inode contains a pointer to the inode.
481 * @secid contains a pointer to the location where result will be saved.
482 * In case of failure, @secid will be set to zero.
484 * Security hooks for file operations
487 * Check file permissions before accessing an open file. This hook is
488 * called by various operations that read or write files. A security
489 * module can use this hook to perform additional checking on these
490 * operations, e.g. to revalidate permissions on use to support privilege
491 * bracketing or policy changes. Notice that this hook is used when the
492 * actual read/write operations are performed, whereas the
493 * inode_security_ops hook is called when a file is opened (as well as
494 * many other operations).
495 * Caveat: Although this hook can be used to revalidate permissions for
496 * various system call operations that read or write files, it does not
497 * address the revalidation of permissions for memory-mapped files.
498 * Security modules must handle this separately if they need such
500 * @file contains the file structure being accessed.
501 * @mask contains the requested permissions.
502 * Return 0 if permission is granted.
503 * @file_alloc_security:
504 * Allocate and attach a security structure to the file->f_security field.
505 * The security field is initialized to NULL when the structure is first
507 * @file contains the file structure to secure.
508 * Return 0 if the hook is successful and permission is granted.
509 * @file_free_security:
510 * Deallocate and free any security structures stored in file->f_security.
511 * @file contains the file structure being modified.
513 * @file contains the file structure.
514 * @cmd contains the operation to perform.
515 * @arg contains the operational arguments.
516 * Check permission for an ioctl operation on @file. Note that @arg can
517 * sometimes represents a user space pointer; in other cases, it may be a
518 * simple integer value. When @arg represents a user space pointer, it
519 * should never be used by the security module.
520 * Return 0 if permission is granted.
522 * Check permissions for a mmap operation. The @file may be NULL, e.g.
523 * if mapping anonymous memory.
524 * @file contains the file structure for file to map (may be NULL).
525 * @reqprot contains the protection requested by the application.
526 * @prot contains the protection that will be applied by the kernel.
527 * @flags contains the operational flags.
528 * Return 0 if permission is granted.
530 * Check permissions before changing memory access permissions.
531 * @vma contains the memory region to modify.
532 * @reqprot contains the protection requested by the application.
533 * @prot contains the protection that will be applied by the kernel.
534 * Return 0 if permission is granted.
536 * Check permission before performing file locking operations.
537 * Note: this hook mediates both flock and fcntl style locks.
538 * @file contains the file structure.
539 * @cmd contains the posix-translated lock operation to perform
540 * (e.g. F_RDLCK, F_WRLCK).
541 * Return 0 if permission is granted.
543 * Check permission before allowing the file operation specified by @cmd
544 * from being performed on the file @file. Note that @arg can sometimes
545 * represents a user space pointer; in other cases, it may be a simple
546 * integer value. When @arg represents a user space pointer, it should
547 * never be used by the security module.
548 * @file contains the file structure.
549 * @cmd contains the operation to be performed.
550 * @arg contains the operational arguments.
551 * Return 0 if permission is granted.
553 * Save owner security information (typically from current->security) in
554 * file->f_security for later use by the send_sigiotask hook.
555 * @file contains the file structure to update.
556 * Return 0 on success.
557 * @file_send_sigiotask:
558 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
559 * process @tsk. Note that this hook is sometimes called from interrupt.
560 * Note that the fown_struct, @fown, is never outside the context of a
561 * struct file, so the file structure (and associated security information)
562 * can always be obtained:
563 * container_of(fown, struct file, f_owner)
564 * @tsk contains the structure of task receiving signal.
565 * @fown contains the file owner information.
566 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
567 * Return 0 if permission is granted.
569 * This hook allows security modules to control the ability of a process
570 * to receive an open file descriptor via socket IPC.
571 * @file contains the file structure being received.
572 * Return 0 if permission is granted.
574 * Security hook for dentry
577 * Save open-time permission checking state for later use upon
578 * file_permission, and recheck access if anything has changed
579 * since inode_permission.
581 * Security hooks for task operations.
584 * Check permission before creating a child process. See the clone(2)
585 * manual page for definitions of the @clone_flags.
586 * @clone_flags contains the flags indicating what should be shared.
587 * Return 0 if permission is granted.
588 * @task_alloc_security:
589 * @p contains the task_struct for child process.
590 * Allocate and attach a security structure to the p->security field. The
591 * security field is initialized to NULL when the task structure is
593 * Return 0 if operation was successful.
594 * @task_free_security:
595 * @p contains the task_struct for process.
596 * Deallocate and clear the p->security field.
598 * Check permission before setting one or more of the user identity
599 * attributes of the current process. The @flags parameter indicates
600 * which of the set*uid system calls invoked this hook and how to
601 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
602 * definitions at the beginning of this file for the @flags values and
604 * @id0 contains a uid.
605 * @id1 contains a uid.
606 * @id2 contains a uid.
607 * @flags contains one of the LSM_SETID_* values.
608 * Return 0 if permission is granted.
610 * Update the module's state after setting one or more of the user
611 * identity attributes of the current process. The @flags parameter
612 * indicates which of the set*uid system calls invoked this hook. If
613 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
614 * parameters are not used.
615 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
616 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
617 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
618 * @flags contains one of the LSM_SETID_* values.
619 * Return 0 on success.
621 * Check permission before setting one or more of the group identity
622 * attributes of the current process. The @flags parameter indicates
623 * which of the set*gid system calls invoked this hook and how to
624 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
625 * definitions at the beginning of this file for the @flags values and
627 * @id0 contains a gid.
628 * @id1 contains a gid.
629 * @id2 contains a gid.
630 * @flags contains one of the LSM_SETID_* values.
631 * Return 0 if permission is granted.
633 * Check permission before setting the process group identifier of the
634 * process @p to @pgid.
635 * @p contains the task_struct for process being modified.
636 * @pgid contains the new pgid.
637 * Return 0 if permission is granted.
639 * Check permission before getting the process group identifier of the
641 * @p contains the task_struct for the process.
642 * Return 0 if permission is granted.
644 * Check permission before getting the session identifier of the process
646 * @p contains the task_struct for the process.
647 * Return 0 if permission is granted.
649 * Retrieve the security identifier of the process @p.
650 * @p contains the task_struct for the process and place is into @secid.
651 * In case of failure, @secid will be set to zero.
654 * Check permission before setting the supplementary group set of the
656 * @group_info contains the new group information.
657 * Return 0 if permission is granted.
659 * Check permission before setting the nice value of @p to @nice.
660 * @p contains the task_struct of process.
661 * @nice contains the new nice value.
662 * Return 0 if permission is granted.
664 * Check permission before setting the ioprio value of @p to @ioprio.
665 * @p contains the task_struct of process.
666 * @ioprio contains the new ioprio value
667 * Return 0 if permission is granted.
669 * Check permission before getting the ioprio value of @p.
670 * @p contains the task_struct of process.
671 * Return 0 if permission is granted.
673 * Check permission before setting the resource limits of the current
674 * process for @resource to @new_rlim. The old resource limit values can
675 * be examined by dereferencing (current->signal->rlim + resource).
676 * @resource contains the resource whose limit is being set.
677 * @new_rlim contains the new limits for @resource.
678 * Return 0 if permission is granted.
679 * @task_setscheduler:
680 * Check permission before setting scheduling policy and/or parameters of
681 * process @p based on @policy and @lp.
682 * @p contains the task_struct for process.
683 * @policy contains the scheduling policy.
684 * @lp contains the scheduling parameters.
685 * Return 0 if permission is granted.
686 * @task_getscheduler:
687 * Check permission before obtaining scheduling information for process
689 * @p contains the task_struct for process.
690 * Return 0 if permission is granted.
692 * Check permission before moving memory owned by process @p.
693 * @p contains the task_struct for process.
694 * Return 0 if permission is granted.
696 * Check permission before sending signal @sig to @p. @info can be NULL,
697 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
698 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
699 * from the kernel and should typically be permitted.
700 * SIGIO signals are handled separately by the send_sigiotask hook in
702 * @p contains the task_struct for process.
703 * @info contains the signal information.
704 * @sig contains the signal value.
705 * @secid contains the sid of the process where the signal originated
706 * Return 0 if permission is granted.
708 * Check permission before allowing a process to reap a child process @p
709 * and collect its status information.
710 * @p contains the task_struct for process.
711 * Return 0 if permission is granted.
713 * Check permission before performing a process control operation on the
715 * @option contains the operation.
716 * @arg2 contains a argument.
717 * @arg3 contains a argument.
718 * @arg4 contains a argument.
719 * @arg5 contains a argument.
720 * @rc_p contains a pointer to communicate back the forced return code
721 * Return 0 if permission is granted, and non-zero if the security module
722 * has taken responsibility (setting *rc_p) for the prctl call.
723 * @task_reparent_to_init:
724 * Set the security attributes in @p->security for a kernel thread that
725 * is being reparented to the init task.
726 * @p contains the task_struct for the kernel thread.
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 * @context points to the process 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 * binprm_security_ops if the process is being traced and its security
1166 * attributes would be changed by the execve.
1167 * @child contains the task_struct structure for the target process.
1168 * @mode contains the PTRACE_MODE flags indicating the form of access.
1169 * Return 0 if permission is granted.
1171 * Check that the @parent process has sufficient permission to trace the
1172 * current process before allowing the current process to present itself
1173 * to the @parent process for tracing.
1174 * The parent process will still have to undergo the ptrace_may_access
1175 * checks before it is allowed to trace this one.
1176 * @parent contains the task_struct structure for debugger process.
1177 * Return 0 if permission is granted.
1179 * Get the @effective, @inheritable, and @permitted capability sets for
1180 * the @target process. The hook may also perform permission checking to
1181 * determine if the current process is allowed to see the capability sets
1182 * of the @target process.
1183 * @target contains the task_struct structure for target process.
1184 * @effective contains the effective capability set.
1185 * @inheritable contains the inheritable capability set.
1186 * @permitted contains the permitted capability set.
1187 * Return 0 if the capability sets were successfully obtained.
1189 * Check permission before setting the @effective, @inheritable, and
1190 * @permitted capability sets for the @target process.
1191 * Caveat: @target is also set to current if a set of processes is
1192 * specified (i.e. all processes other than current and init or a
1193 * particular process group). Hence, the capset_set hook may need to
1194 * revalidate permission to the actual target process.
1195 * @target contains the task_struct structure for target process.
1196 * @effective contains the effective capability set.
1197 * @inheritable contains the inheritable capability set.
1198 * @permitted contains the permitted capability set.
1199 * Return 0 if permission is granted.
1201 * Set the @effective, @inheritable, and @permitted capability sets for
1202 * the @target process. Since capset_check cannot always check permission
1203 * to the real @target process, this hook may also perform permission
1204 * checking to determine if the current process is allowed to set the
1205 * capability sets of the @target process. However, this hook has no way
1206 * of returning an error due to the structure of the sys_capset code.
1207 * @target contains the task_struct structure for target process.
1208 * @effective contains the effective capability set.
1209 * @inheritable contains the inheritable capability set.
1210 * @permitted contains the permitted capability set.
1212 * Check whether the @tsk process has the @cap capability.
1213 * @tsk contains the task_struct for the process.
1214 * @cap contains the capability <include/linux/capability.h>.
1215 * Return 0 if the capability is granted for @tsk.
1217 * Check permission before enabling or disabling process accounting. If
1218 * accounting is being enabled, then @file refers to the open file used to
1219 * store accounting records. If accounting is being disabled, then @file
1221 * @file contains the file structure for the accounting file (may be NULL).
1222 * Return 0 if permission is granted.
1224 * Check permission before accessing the @table sysctl variable in the
1225 * manner specified by @op.
1226 * @table contains the ctl_table structure for the sysctl variable.
1227 * @op contains the operation (001 = search, 002 = write, 004 = read).
1228 * Return 0 if permission is granted.
1230 * Check permission before accessing the kernel message ring or changing
1231 * logging to the console.
1232 * See the syslog(2) manual page for an explanation of the @type values.
1233 * @type contains the type of action.
1234 * Return 0 if permission is granted.
1236 * Check permission to change the system time.
1237 * struct timespec and timezone are defined in include/linux/time.h
1238 * @ts contains new time
1239 * @tz contains new timezone
1240 * Return 0 if permission is granted.
1241 * @vm_enough_memory:
1242 * Check permissions for allocating a new virtual mapping.
1243 * @mm contains the mm struct it is being added to.
1244 * @pages contains the number of pages.
1245 * Return 0 if permission is granted.
1248 * Convert secid to security context.
1249 * @secid contains the security ID.
1250 * @secdata contains the pointer that stores the converted security context.
1252 * Convert security context to secid.
1253 * @secid contains the pointer to the generated security ID.
1254 * @secdata contains the security context.
1257 * Release the security context.
1258 * @secdata contains the security context.
1259 * @seclen contains the length of the security context.
1261 * Security hooks for Audit
1264 * Allocate and initialize an LSM audit rule structure.
1265 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1266 * @op contains the operator the rule uses.
1267 * @rulestr contains the context where the rule will be applied to.
1268 * @lsmrule contains a pointer to receive the result.
1269 * Return 0 if @lsmrule has been successfully set,
1270 * -EINVAL in case of an invalid rule.
1272 * @audit_rule_known:
1273 * Specifies whether given @rule contains any fields related to current LSM.
1274 * @rule contains the audit rule of interest.
1275 * Return 1 in case of relation found, 0 otherwise.
1277 * @audit_rule_match:
1278 * Determine if given @secid matches a rule previously approved
1279 * by @audit_rule_known.
1280 * @secid contains the security id in question.
1281 * @field contains the field which relates to current LSM.
1282 * @op contains the operator that will be used for matching.
1283 * @rule points to the audit rule that will be checked against.
1284 * @actx points to the audit context associated with the check.
1285 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1288 * Deallocate the LSM audit rule structure previously allocated by
1290 * @rule contains the allocated rule
1292 * This is the main security structure.
1294 struct security_operations {
1295 char name[SECURITY_NAME_MAX + 1];
1297 int (*ptrace_may_access) (struct task_struct *child, unsigned int mode);
1298 int (*ptrace_traceme) (struct task_struct *parent);
1299 int (*capget) (struct task_struct *target,
1300 kernel_cap_t *effective,
1301 kernel_cap_t *inheritable, kernel_cap_t *permitted);
1302 int (*capset_check) (struct task_struct *target,
1303 kernel_cap_t *effective,
1304 kernel_cap_t *inheritable,
1305 kernel_cap_t *permitted);
1306 void (*capset_set) (struct task_struct *target,
1307 kernel_cap_t *effective,
1308 kernel_cap_t *inheritable,
1309 kernel_cap_t *permitted);
1310 int (*capable) (struct task_struct *tsk, int cap);
1311 int (*acct) (struct file *file);
1312 int (*sysctl) (struct ctl_table *table, int op);
1313 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1314 int (*quota_on) (struct dentry *dentry);
1315 int (*syslog) (int type);
1316 int (*settime) (struct timespec *ts, struct timezone *tz);
1317 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
1319 int (*bprm_alloc_security) (struct linux_binprm *bprm);
1320 void (*bprm_free_security) (struct linux_binprm *bprm);
1321 void (*bprm_apply_creds) (struct linux_binprm *bprm, int unsafe);
1322 void (*bprm_post_apply_creds) (struct linux_binprm *bprm);
1323 int (*bprm_set_security) (struct linux_binprm *bprm);
1324 int (*bprm_check_security) (struct linux_binprm *bprm);
1325 int (*bprm_secureexec) (struct linux_binprm *bprm);
1327 int (*sb_alloc_security) (struct super_block *sb);
1328 void (*sb_free_security) (struct super_block *sb);
1329 int (*sb_copy_data) (char *orig, char *copy);
1330 int (*sb_kern_mount) (struct super_block *sb, void *data);
1331 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
1332 int (*sb_statfs) (struct dentry *dentry);
1333 int (*sb_mount) (char *dev_name, struct path *path,
1334 char *type, unsigned long flags, void *data);
1335 int (*sb_check_sb) (struct vfsmount *mnt, struct path *path);
1336 int (*sb_umount) (struct vfsmount *mnt, int flags);
1337 void (*sb_umount_close) (struct vfsmount *mnt);
1338 void (*sb_umount_busy) (struct vfsmount *mnt);
1339 void (*sb_post_remount) (struct vfsmount *mnt,
1340 unsigned long flags, void *data);
1341 void (*sb_post_addmount) (struct vfsmount *mnt,
1342 struct path *mountpoint);
1343 int (*sb_pivotroot) (struct path *old_path,
1344 struct path *new_path);
1345 void (*sb_post_pivotroot) (struct path *old_path,
1346 struct path *new_path);
1347 int (*sb_set_mnt_opts) (struct super_block *sb,
1348 struct security_mnt_opts *opts);
1349 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1350 struct super_block *newsb);
1351 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
1353 int (*inode_alloc_security) (struct inode *inode);
1354 void (*inode_free_security) (struct inode *inode);
1355 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1356 char **name, void **value, size_t *len);
1357 int (*inode_create) (struct inode *dir,
1358 struct dentry *dentry, int mode);
1359 int (*inode_link) (struct dentry *old_dentry,
1360 struct inode *dir, struct dentry *new_dentry);
1361 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1362 int (*inode_symlink) (struct inode *dir,
1363 struct dentry *dentry, const char *old_name);
1364 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
1365 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1366 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1367 int mode, dev_t dev);
1368 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1369 struct inode *new_dir, struct dentry *new_dentry);
1370 int (*inode_readlink) (struct dentry *dentry);
1371 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1372 int (*inode_permission) (struct inode *inode, int mask);
1373 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1374 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1375 void (*inode_delete) (struct inode *inode);
1376 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1377 const void *value, size_t size, int flags);
1378 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1379 const void *value, size_t size, int flags);
1380 int (*inode_getxattr) (struct dentry *dentry, const char *name);
1381 int (*inode_listxattr) (struct dentry *dentry);
1382 int (*inode_removexattr) (struct dentry *dentry, const char *name);
1383 int (*inode_need_killpriv) (struct dentry *dentry);
1384 int (*inode_killpriv) (struct dentry *dentry);
1385 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1386 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1387 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1388 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
1390 int (*file_permission) (struct file *file, int mask);
1391 int (*file_alloc_security) (struct file *file);
1392 void (*file_free_security) (struct file *file);
1393 int (*file_ioctl) (struct file *file, unsigned int cmd,
1395 int (*file_mmap) (struct file *file,
1396 unsigned long reqprot, unsigned long prot,
1397 unsigned long flags, unsigned long addr,
1398 unsigned long addr_only);
1399 int (*file_mprotect) (struct vm_area_struct *vma,
1400 unsigned long reqprot,
1401 unsigned long prot);
1402 int (*file_lock) (struct file *file, unsigned int cmd);
1403 int (*file_fcntl) (struct file *file, unsigned int cmd,
1405 int (*file_set_fowner) (struct file *file);
1406 int (*file_send_sigiotask) (struct task_struct *tsk,
1407 struct fown_struct *fown, int sig);
1408 int (*file_receive) (struct file *file);
1409 int (*dentry_open) (struct file *file);
1411 int (*task_create) (unsigned long clone_flags);
1412 int (*task_alloc_security) (struct task_struct *p);
1413 void (*task_free_security) (struct task_struct *p);
1414 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1415 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1416 uid_t old_euid, uid_t old_suid, int flags);
1417 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1418 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1419 int (*task_getpgid) (struct task_struct *p);
1420 int (*task_getsid) (struct task_struct *p);
1421 void (*task_getsecid) (struct task_struct *p, u32 *secid);
1422 int (*task_setgroups) (struct group_info *group_info);
1423 int (*task_setnice) (struct task_struct *p, int nice);
1424 int (*task_setioprio) (struct task_struct *p, int ioprio);
1425 int (*task_getioprio) (struct task_struct *p);
1426 int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim);
1427 int (*task_setscheduler) (struct task_struct *p, int policy,
1428 struct sched_param *lp);
1429 int (*task_getscheduler) (struct task_struct *p);
1430 int (*task_movememory) (struct task_struct *p);
1431 int (*task_kill) (struct task_struct *p,
1432 struct siginfo *info, int sig, u32 secid);
1433 int (*task_wait) (struct task_struct *p);
1434 int (*task_prctl) (int option, unsigned long arg2,
1435 unsigned long arg3, unsigned long arg4,
1436 unsigned long arg5, long *rc_p);
1437 void (*task_reparent_to_init) (struct task_struct *p);
1438 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
1440 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
1441 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
1443 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1444 void (*msg_msg_free_security) (struct msg_msg *msg);
1446 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1447 void (*msg_queue_free_security) (struct msg_queue *msq);
1448 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1449 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1450 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1451 struct msg_msg *msg, int msqflg);
1452 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1453 struct msg_msg *msg,
1454 struct task_struct *target,
1455 long type, int mode);
1457 int (*shm_alloc_security) (struct shmid_kernel *shp);
1458 void (*shm_free_security) (struct shmid_kernel *shp);
1459 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1460 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1461 int (*shm_shmat) (struct shmid_kernel *shp,
1462 char __user *shmaddr, int shmflg);
1464 int (*sem_alloc_security) (struct sem_array *sma);
1465 void (*sem_free_security) (struct sem_array *sma);
1466 int (*sem_associate) (struct sem_array *sma, int semflg);
1467 int (*sem_semctl) (struct sem_array *sma, int cmd);
1468 int (*sem_semop) (struct sem_array *sma,
1469 struct sembuf *sops, unsigned nsops, int alter);
1471 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1472 int (*netlink_recv) (struct sk_buff *skb, int cap);
1474 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1476 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1477 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1478 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
1479 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
1480 void (*release_secctx) (char *secdata, u32 seclen);
1482 #ifdef CONFIG_SECURITY_NETWORK
1483 int (*unix_stream_connect) (struct socket *sock,
1484 struct socket *other, struct sock *newsk);
1485 int (*unix_may_send) (struct socket *sock, struct socket *other);
1487 int (*socket_create) (int family, int type, int protocol, int kern);
1488 int (*socket_post_create) (struct socket *sock, int family,
1489 int type, int protocol, int kern);
1490 int (*socket_bind) (struct socket *sock,
1491 struct sockaddr *address, int addrlen);
1492 int (*socket_connect) (struct socket *sock,
1493 struct sockaddr *address, int addrlen);
1494 int (*socket_listen) (struct socket *sock, int backlog);
1495 int (*socket_accept) (struct socket *sock, struct socket *newsock);
1496 void (*socket_post_accept) (struct socket *sock,
1497 struct socket *newsock);
1498 int (*socket_sendmsg) (struct socket *sock,
1499 struct msghdr *msg, int size);
1500 int (*socket_recvmsg) (struct socket *sock,
1501 struct msghdr *msg, int size, int flags);
1502 int (*socket_getsockname) (struct socket *sock);
1503 int (*socket_getpeername) (struct socket *sock);
1504 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1505 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1506 int (*socket_shutdown) (struct socket *sock, int how);
1507 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
1508 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1509 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
1510 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
1511 void (*sk_free_security) (struct sock *sk);
1512 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
1513 void (*sk_getsecid) (struct sock *sk, u32 *secid);
1514 void (*sock_graft) (struct sock *sk, struct socket *parent);
1515 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1516 struct request_sock *req);
1517 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1518 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1519 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
1520 #endif /* CONFIG_SECURITY_NETWORK */
1522 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1523 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
1524 struct xfrm_user_sec_ctx *sec_ctx);
1525 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1526 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1527 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
1528 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
1529 struct xfrm_user_sec_ctx *sec_ctx,
1531 void (*xfrm_state_free_security) (struct xfrm_state *x);
1532 int (*xfrm_state_delete_security) (struct xfrm_state *x);
1533 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1534 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1535 struct xfrm_policy *xp,
1537 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
1538 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1540 /* key management security hooks */
1542 int (*key_alloc) (struct key *key, struct task_struct *tsk, unsigned long flags);
1543 void (*key_free) (struct key *key);
1544 int (*key_permission) (key_ref_t key_ref,
1545 struct task_struct *context,
1547 int (*key_getsecurity)(struct key *key, char **_buffer);
1548 #endif /* CONFIG_KEYS */
1551 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1552 int (*audit_rule_known) (struct audit_krule *krule);
1553 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1554 struct audit_context *actx);
1555 void (*audit_rule_free) (void *lsmrule);
1556 #endif /* CONFIG_AUDIT */
1560 extern int security_init(void);
1561 extern int security_module_enable(struct security_operations *ops);
1562 extern int register_security(struct security_operations *ops);
1564 /* Security operations */
1565 int security_ptrace_may_access(struct task_struct *child, unsigned int mode);
1566 int security_ptrace_traceme(struct task_struct *parent);
1567 int security_capget(struct task_struct *target,
1568 kernel_cap_t *effective,
1569 kernel_cap_t *inheritable,
1570 kernel_cap_t *permitted);
1571 int security_capset_check(struct task_struct *target,
1572 kernel_cap_t *effective,
1573 kernel_cap_t *inheritable,
1574 kernel_cap_t *permitted);
1575 void security_capset_set(struct task_struct *target,
1576 kernel_cap_t *effective,
1577 kernel_cap_t *inheritable,
1578 kernel_cap_t *permitted);
1579 int security_capable(struct task_struct *tsk, int cap);
1580 int security_acct(struct file *file);
1581 int security_sysctl(struct ctl_table *table, int op);
1582 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1583 int security_quota_on(struct dentry *dentry);
1584 int security_syslog(int type);
1585 int security_settime(struct timespec *ts, struct timezone *tz);
1586 int security_vm_enough_memory(long pages);
1587 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
1588 int security_bprm_alloc(struct linux_binprm *bprm);
1589 void security_bprm_free(struct linux_binprm *bprm);
1590 void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
1591 void security_bprm_post_apply_creds(struct linux_binprm *bprm);
1592 int security_bprm_set(struct linux_binprm *bprm);
1593 int security_bprm_check(struct linux_binprm *bprm);
1594 int security_bprm_secureexec(struct linux_binprm *bprm);
1595 int security_sb_alloc(struct super_block *sb);
1596 void security_sb_free(struct super_block *sb);
1597 int security_sb_copy_data(char *orig, char *copy);
1598 int security_sb_kern_mount(struct super_block *sb, void *data);
1599 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
1600 int security_sb_statfs(struct dentry *dentry);
1601 int security_sb_mount(char *dev_name, struct path *path,
1602 char *type, unsigned long flags, void *data);
1603 int security_sb_check_sb(struct vfsmount *mnt, struct path *path);
1604 int security_sb_umount(struct vfsmount *mnt, int flags);
1605 void security_sb_umount_close(struct vfsmount *mnt);
1606 void security_sb_umount_busy(struct vfsmount *mnt);
1607 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data);
1608 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
1609 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
1610 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
1611 int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
1612 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1613 struct super_block *newsb);
1614 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
1616 int security_inode_alloc(struct inode *inode);
1617 void security_inode_free(struct inode *inode);
1618 int security_inode_init_security(struct inode *inode, struct inode *dir,
1619 char **name, void **value, size_t *len);
1620 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1621 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1622 struct dentry *new_dentry);
1623 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1624 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
1625 const char *old_name);
1626 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1627 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1628 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1629 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
1630 struct inode *new_dir, struct dentry *new_dentry);
1631 int security_inode_readlink(struct dentry *dentry);
1632 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
1633 int security_inode_permission(struct inode *inode, int mask);
1634 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1635 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
1636 void security_inode_delete(struct inode *inode);
1637 int security_inode_setxattr(struct dentry *dentry, const char *name,
1638 const void *value, size_t size, int flags);
1639 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1640 const void *value, size_t size, int flags);
1641 int security_inode_getxattr(struct dentry *dentry, const char *name);
1642 int security_inode_listxattr(struct dentry *dentry);
1643 int security_inode_removexattr(struct dentry *dentry, const char *name);
1644 int security_inode_need_killpriv(struct dentry *dentry);
1645 int security_inode_killpriv(struct dentry *dentry);
1646 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
1647 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1648 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
1649 void security_inode_getsecid(const struct inode *inode, u32 *secid);
1650 int security_file_permission(struct file *file, int mask);
1651 int security_file_alloc(struct file *file);
1652 void security_file_free(struct file *file);
1653 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1654 int security_file_mmap(struct file *file, unsigned long reqprot,
1655 unsigned long prot, unsigned long flags,
1656 unsigned long addr, unsigned long addr_only);
1657 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
1658 unsigned long prot);
1659 int security_file_lock(struct file *file, unsigned int cmd);
1660 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1661 int security_file_set_fowner(struct file *file);
1662 int security_file_send_sigiotask(struct task_struct *tsk,
1663 struct fown_struct *fown, int sig);
1664 int security_file_receive(struct file *file);
1665 int security_dentry_open(struct file *file);
1666 int security_task_create(unsigned long clone_flags);
1667 int security_task_alloc(struct task_struct *p);
1668 void security_task_free(struct task_struct *p);
1669 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
1670 int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
1671 uid_t old_suid, int flags);
1672 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags);
1673 int security_task_setpgid(struct task_struct *p, pid_t pgid);
1674 int security_task_getpgid(struct task_struct *p);
1675 int security_task_getsid(struct task_struct *p);
1676 void security_task_getsecid(struct task_struct *p, u32 *secid);
1677 int security_task_setgroups(struct group_info *group_info);
1678 int security_task_setnice(struct task_struct *p, int nice);
1679 int security_task_setioprio(struct task_struct *p, int ioprio);
1680 int security_task_getioprio(struct task_struct *p);
1681 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim);
1682 int security_task_setscheduler(struct task_struct *p,
1683 int policy, struct sched_param *lp);
1684 int security_task_getscheduler(struct task_struct *p);
1685 int security_task_movememory(struct task_struct *p);
1686 int security_task_kill(struct task_struct *p, struct siginfo *info,
1687 int sig, u32 secid);
1688 int security_task_wait(struct task_struct *p);
1689 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1690 unsigned long arg4, unsigned long arg5, long *rc_p);
1691 void security_task_reparent_to_init(struct task_struct *p);
1692 void security_task_to_inode(struct task_struct *p, struct inode *inode);
1693 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
1694 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
1695 int security_msg_msg_alloc(struct msg_msg *msg);
1696 void security_msg_msg_free(struct msg_msg *msg);
1697 int security_msg_queue_alloc(struct msg_queue *msq);
1698 void security_msg_queue_free(struct msg_queue *msq);
1699 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1700 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1701 int security_msg_queue_msgsnd(struct msg_queue *msq,
1702 struct msg_msg *msg, int msqflg);
1703 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1704 struct task_struct *target, long type, int mode);
1705 int security_shm_alloc(struct shmid_kernel *shp);
1706 void security_shm_free(struct shmid_kernel *shp);
1707 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1708 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1709 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1710 int security_sem_alloc(struct sem_array *sma);
1711 void security_sem_free(struct sem_array *sma);
1712 int security_sem_associate(struct sem_array *sma, int semflg);
1713 int security_sem_semctl(struct sem_array *sma, int cmd);
1714 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1715 unsigned nsops, int alter);
1716 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
1717 int security_getprocattr(struct task_struct *p, char *name, char **value);
1718 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1719 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1720 int security_netlink_recv(struct sk_buff *skb, int cap);
1721 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
1722 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
1723 void security_release_secctx(char *secdata, u32 seclen);
1725 #else /* CONFIG_SECURITY */
1726 struct security_mnt_opts {
1729 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1733 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1738 * This is the default capabilities functionality. Most of these functions
1739 * are just stubbed out, but a few must call the proper capable code.
1742 static inline int security_init(void)
1747 static inline int security_ptrace_may_access(struct task_struct *child,
1750 return cap_ptrace_may_access(child, mode);
1753 static inline int security_ptrace_traceme(struct task_struct *parent)
1755 return cap_ptrace_traceme(parent);
1758 static inline int security_capget(struct task_struct *target,
1759 kernel_cap_t *effective,
1760 kernel_cap_t *inheritable,
1761 kernel_cap_t *permitted)
1763 return cap_capget(target, effective, inheritable, permitted);
1766 static inline int security_capset_check(struct task_struct *target,
1767 kernel_cap_t *effective,
1768 kernel_cap_t *inheritable,
1769 kernel_cap_t *permitted)
1771 return cap_capset_check(target, effective, inheritable, permitted);
1774 static inline void security_capset_set(struct task_struct *target,
1775 kernel_cap_t *effective,
1776 kernel_cap_t *inheritable,
1777 kernel_cap_t *permitted)
1779 cap_capset_set(target, effective, inheritable, permitted);
1782 static inline int security_capable(struct task_struct *tsk, int cap)
1784 return cap_capable(tsk, cap);
1787 static inline int security_acct(struct file *file)
1792 static inline int security_sysctl(struct ctl_table *table, int op)
1797 static inline int security_quotactl(int cmds, int type, int id,
1798 struct super_block *sb)
1803 static inline int security_quota_on(struct dentry *dentry)
1808 static inline int security_syslog(int type)
1810 return cap_syslog(type);
1813 static inline int security_settime(struct timespec *ts, struct timezone *tz)
1815 return cap_settime(ts, tz);
1818 static inline int security_vm_enough_memory(long pages)
1820 return cap_vm_enough_memory(current->mm, pages);
1823 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1825 return cap_vm_enough_memory(mm, pages);
1828 static inline int security_bprm_alloc(struct linux_binprm *bprm)
1833 static inline void security_bprm_free(struct linux_binprm *bprm)
1836 static inline void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
1838 cap_bprm_apply_creds(bprm, unsafe);
1841 static inline void security_bprm_post_apply_creds(struct linux_binprm *bprm)
1846 static inline int security_bprm_set(struct linux_binprm *bprm)
1848 return cap_bprm_set_security(bprm);
1851 static inline int security_bprm_check(struct linux_binprm *bprm)
1856 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
1858 return cap_bprm_secureexec(bprm);
1861 static inline int security_sb_alloc(struct super_block *sb)
1866 static inline void security_sb_free(struct super_block *sb)
1869 static inline int security_sb_copy_data(char *orig, char *copy)
1874 static inline int security_sb_kern_mount(struct super_block *sb, void *data)
1879 static inline int security_sb_show_options(struct seq_file *m,
1880 struct super_block *sb)
1885 static inline int security_sb_statfs(struct dentry *dentry)
1890 static inline int security_sb_mount(char *dev_name, struct path *path,
1891 char *type, unsigned long flags,
1897 static inline int security_sb_check_sb(struct vfsmount *mnt,
1903 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
1908 static inline void security_sb_umount_close(struct vfsmount *mnt)
1911 static inline void security_sb_umount_busy(struct vfsmount *mnt)
1914 static inline void security_sb_post_remount(struct vfsmount *mnt,
1915 unsigned long flags, void *data)
1918 static inline void security_sb_post_addmount(struct vfsmount *mnt,
1919 struct path *mountpoint)
1922 static inline int security_sb_pivotroot(struct path *old_path,
1923 struct path *new_path)
1928 static inline void security_sb_post_pivotroot(struct path *old_path,
1929 struct path *new_path)
1932 static inline int security_sb_set_mnt_opts(struct super_block *sb,
1933 struct security_mnt_opts *opts)
1938 static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1939 struct super_block *newsb)
1942 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
1947 static inline int security_inode_alloc(struct inode *inode)
1952 static inline void security_inode_free(struct inode *inode)
1955 static inline int security_inode_init_security(struct inode *inode,
1964 static inline int security_inode_create(struct inode *dir,
1965 struct dentry *dentry,
1971 static inline int security_inode_link(struct dentry *old_dentry,
1973 struct dentry *new_dentry)
1978 static inline int security_inode_unlink(struct inode *dir,
1979 struct dentry *dentry)
1984 static inline int security_inode_symlink(struct inode *dir,
1985 struct dentry *dentry,
1986 const char *old_name)
1991 static inline int security_inode_mkdir(struct inode *dir,
1992 struct dentry *dentry,
1998 static inline int security_inode_rmdir(struct inode *dir,
1999 struct dentry *dentry)
2004 static inline int security_inode_mknod(struct inode *dir,
2005 struct dentry *dentry,
2006 int mode, dev_t dev)
2011 static inline int security_inode_rename(struct inode *old_dir,
2012 struct dentry *old_dentry,
2013 struct inode *new_dir,
2014 struct dentry *new_dentry)
2019 static inline int security_inode_readlink(struct dentry *dentry)
2024 static inline int security_inode_follow_link(struct dentry *dentry,
2025 struct nameidata *nd)
2030 static inline int security_inode_permission(struct inode *inode, int mask)
2035 static inline int security_inode_setattr(struct dentry *dentry,
2041 static inline int security_inode_getattr(struct vfsmount *mnt,
2042 struct dentry *dentry)
2047 static inline void security_inode_delete(struct inode *inode)
2050 static inline int security_inode_setxattr(struct dentry *dentry,
2051 const char *name, const void *value, size_t size, int flags)
2053 return cap_inode_setxattr(dentry, name, value, size, flags);
2056 static inline void security_inode_post_setxattr(struct dentry *dentry,
2057 const char *name, const void *value, size_t size, int flags)
2060 static inline int security_inode_getxattr(struct dentry *dentry,
2066 static inline int security_inode_listxattr(struct dentry *dentry)
2071 static inline int security_inode_removexattr(struct dentry *dentry,
2074 return cap_inode_removexattr(dentry, name);
2077 static inline int security_inode_need_killpriv(struct dentry *dentry)
2079 return cap_inode_need_killpriv(dentry);
2082 static inline int security_inode_killpriv(struct dentry *dentry)
2084 return cap_inode_killpriv(dentry);
2087 static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
2092 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2097 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2102 static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2107 static inline int security_file_permission(struct file *file, int mask)
2112 static inline int security_file_alloc(struct file *file)
2117 static inline void security_file_free(struct file *file)
2120 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2126 static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2128 unsigned long flags,
2130 unsigned long addr_only)
2135 static inline int security_file_mprotect(struct vm_area_struct *vma,
2136 unsigned long reqprot,
2142 static inline int security_file_lock(struct file *file, unsigned int cmd)
2147 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2153 static inline int security_file_set_fowner(struct file *file)
2158 static inline int security_file_send_sigiotask(struct task_struct *tsk,
2159 struct fown_struct *fown,
2165 static inline int security_file_receive(struct file *file)
2170 static inline int security_dentry_open(struct file *file)
2175 static inline int security_task_create(unsigned long clone_flags)
2180 static inline int security_task_alloc(struct task_struct *p)
2185 static inline void security_task_free(struct task_struct *p)
2188 static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
2194 static inline int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
2195 uid_t old_suid, int flags)
2197 return cap_task_post_setuid(old_ruid, old_euid, old_suid, flags);
2200 static inline int security_task_setgid(gid_t id0, gid_t id1, gid_t id2,
2206 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
2211 static inline int security_task_getpgid(struct task_struct *p)
2216 static inline int security_task_getsid(struct task_struct *p)
2221 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
2226 static inline int security_task_setgroups(struct group_info *group_info)
2231 static inline int security_task_setnice(struct task_struct *p, int nice)
2233 return cap_task_setnice(p, nice);
2236 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
2238 return cap_task_setioprio(p, ioprio);
2241 static inline int security_task_getioprio(struct task_struct *p)
2246 static inline int security_task_setrlimit(unsigned int resource,
2247 struct rlimit *new_rlim)
2252 static inline int security_task_setscheduler(struct task_struct *p,
2254 struct sched_param *lp)
2256 return cap_task_setscheduler(p, policy, lp);
2259 static inline int security_task_getscheduler(struct task_struct *p)
2264 static inline int security_task_movememory(struct task_struct *p)
2269 static inline int security_task_kill(struct task_struct *p,
2270 struct siginfo *info, int sig,
2276 static inline int security_task_wait(struct task_struct *p)
2281 static inline int security_task_prctl(int option, unsigned long arg2,
2284 unsigned long arg5, long *rc_p)
2286 return cap_task_prctl(option, arg2, arg3, arg3, arg5, rc_p);
2289 static inline void security_task_reparent_to_init(struct task_struct *p)
2291 cap_task_reparent_to_init(p);
2294 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2297 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2303 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2308 static inline int security_msg_msg_alloc(struct msg_msg *msg)
2313 static inline void security_msg_msg_free(struct msg_msg *msg)
2316 static inline int security_msg_queue_alloc(struct msg_queue *msq)
2321 static inline void security_msg_queue_free(struct msg_queue *msq)
2324 static inline int security_msg_queue_associate(struct msg_queue *msq,
2330 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
2335 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2336 struct msg_msg *msg, int msqflg)
2341 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2342 struct msg_msg *msg,
2343 struct task_struct *target,
2344 long type, int mode)
2349 static inline int security_shm_alloc(struct shmid_kernel *shp)
2354 static inline void security_shm_free(struct shmid_kernel *shp)
2357 static inline int security_shm_associate(struct shmid_kernel *shp,
2363 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
2368 static inline int security_shm_shmat(struct shmid_kernel *shp,
2369 char __user *shmaddr, int shmflg)
2374 static inline int security_sem_alloc(struct sem_array *sma)
2379 static inline void security_sem_free(struct sem_array *sma)
2382 static inline int security_sem_associate(struct sem_array *sma, int semflg)
2387 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
2392 static inline int security_sem_semop(struct sem_array *sma,
2393 struct sembuf *sops, unsigned nsops,
2399 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
2402 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
2407 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2412 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
2414 return cap_netlink_send(sk, skb);
2417 static inline int security_netlink_recv(struct sk_buff *skb, int cap)
2419 return cap_netlink_recv(skb, cap);
2422 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2427 static inline int security_secctx_to_secid(const char *secdata,
2434 static inline void security_release_secctx(char *secdata, u32 seclen)
2437 #endif /* CONFIG_SECURITY */
2439 #ifdef CONFIG_SECURITY_NETWORK
2441 int security_unix_stream_connect(struct socket *sock, struct socket *other,
2442 struct sock *newsk);
2443 int security_unix_may_send(struct socket *sock, struct socket *other);
2444 int security_socket_create(int family, int type, int protocol, int kern);
2445 int security_socket_post_create(struct socket *sock, int family,
2446 int type, int protocol, int kern);
2447 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2448 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2449 int security_socket_listen(struct socket *sock, int backlog);
2450 int security_socket_accept(struct socket *sock, struct socket *newsock);
2451 void security_socket_post_accept(struct socket *sock, struct socket *newsock);
2452 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2453 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2454 int size, int flags);
2455 int security_socket_getsockname(struct socket *sock);
2456 int security_socket_getpeername(struct socket *sock);
2457 int security_socket_getsockopt(struct socket *sock, int level, int optname);
2458 int security_socket_setsockopt(struct socket *sock, int level, int optname);
2459 int security_socket_shutdown(struct socket *sock, int how);
2460 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2461 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2462 int __user *optlen, unsigned len);
2463 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2464 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2465 void security_sk_free(struct sock *sk);
2466 void security_sk_clone(const struct sock *sk, struct sock *newsk);
2467 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2468 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2469 void security_sock_graft(struct sock*sk, struct socket *parent);
2470 int security_inet_conn_request(struct sock *sk,
2471 struct sk_buff *skb, struct request_sock *req);
2472 void security_inet_csk_clone(struct sock *newsk,
2473 const struct request_sock *req);
2474 void security_inet_conn_established(struct sock *sk,
2475 struct sk_buff *skb);
2477 #else /* CONFIG_SECURITY_NETWORK */
2478 static inline int security_unix_stream_connect(struct socket *sock,
2479 struct socket *other,
2485 static inline int security_unix_may_send(struct socket *sock,
2486 struct socket *other)
2491 static inline int security_socket_create(int family, int type,
2492 int protocol, int kern)
2497 static inline int security_socket_post_create(struct socket *sock,
2500 int protocol, int kern)
2505 static inline int security_socket_bind(struct socket *sock,
2506 struct sockaddr *address,
2512 static inline int security_socket_connect(struct socket *sock,
2513 struct sockaddr *address,
2519 static inline int security_socket_listen(struct socket *sock, int backlog)
2524 static inline int security_socket_accept(struct socket *sock,
2525 struct socket *newsock)
2530 static inline void security_socket_post_accept(struct socket *sock,
2531 struct socket *newsock)
2535 static inline int security_socket_sendmsg(struct socket *sock,
2536 struct msghdr *msg, int size)
2541 static inline int security_socket_recvmsg(struct socket *sock,
2542 struct msghdr *msg, int size,
2548 static inline int security_socket_getsockname(struct socket *sock)
2553 static inline int security_socket_getpeername(struct socket *sock)
2558 static inline int security_socket_getsockopt(struct socket *sock,
2559 int level, int optname)
2564 static inline int security_socket_setsockopt(struct socket *sock,
2565 int level, int optname)
2570 static inline int security_socket_shutdown(struct socket *sock, int how)
2574 static inline int security_sock_rcv_skb(struct sock *sk,
2575 struct sk_buff *skb)
2580 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2581 int __user *optlen, unsigned len)
2583 return -ENOPROTOOPT;
2586 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
2588 return -ENOPROTOOPT;
2591 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
2596 static inline void security_sk_free(struct sock *sk)
2600 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2604 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
2608 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2612 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
2616 static inline int security_inet_conn_request(struct sock *sk,
2617 struct sk_buff *skb, struct request_sock *req)
2622 static inline void security_inet_csk_clone(struct sock *newsk,
2623 const struct request_sock *req)
2627 static inline void security_inet_conn_established(struct sock *sk,
2628 struct sk_buff *skb)
2631 #endif /* CONFIG_SECURITY_NETWORK */
2633 #ifdef CONFIG_SECURITY_NETWORK_XFRM
2635 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2636 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2637 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2638 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
2639 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2640 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2641 struct xfrm_sec_ctx *polsec, u32 secid);
2642 int security_xfrm_state_delete(struct xfrm_state *x);
2643 void security_xfrm_state_free(struct xfrm_state *x);
2644 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
2645 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2646 struct xfrm_policy *xp, struct flowi *fl);
2647 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2648 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
2650 #else /* CONFIG_SECURITY_NETWORK_XFRM */
2652 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
2657 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
2662 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
2666 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
2671 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2672 struct xfrm_user_sec_ctx *sec_ctx)
2677 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2678 struct xfrm_sec_ctx *polsec, u32 secid)
2683 static inline void security_xfrm_state_free(struct xfrm_state *x)
2687 static inline int security_xfrm_state_delete(struct xfrm_state *x)
2692 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
2697 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2698 struct xfrm_policy *xp, struct flowi *fl)
2703 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
2708 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2712 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
2715 #ifdef CONFIG_SECURITY
2717 int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags);
2718 void security_key_free(struct key *key);
2719 int security_key_permission(key_ref_t key_ref,
2720 struct task_struct *context, key_perm_t perm);
2721 int security_key_getsecurity(struct key *key, char **_buffer);
2725 static inline int security_key_alloc(struct key *key,
2726 struct task_struct *tsk,
2727 unsigned long flags)
2732 static inline void security_key_free(struct key *key)
2736 static inline int security_key_permission(key_ref_t key_ref,
2737 struct task_struct *context,
2743 static inline int security_key_getsecurity(struct key *key, char **_buffer)
2750 #endif /* CONFIG_KEYS */
2753 #ifdef CONFIG_SECURITY
2754 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2755 int security_audit_rule_known(struct audit_krule *krule);
2756 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2757 struct audit_context *actx);
2758 void security_audit_rule_free(void *lsmrule);
2762 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2768 static inline int security_audit_rule_known(struct audit_krule *krule)
2773 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2774 void *lsmrule, struct audit_context *actx)
2779 static inline void security_audit_rule_free(void *lsmrule)
2782 #endif /* CONFIG_SECURITY */
2783 #endif /* CONFIG_AUDIT */
2785 #ifdef CONFIG_SECURITYFS
2787 extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2788 struct dentry *parent, void *data,
2789 const struct file_operations *fops);
2790 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2791 extern void securityfs_remove(struct dentry *dentry);
2793 #else /* CONFIG_SECURITYFS */
2795 static inline struct dentry *securityfs_create_dir(const char *name,
2796 struct dentry *parent)
2798 return ERR_PTR(-ENODEV);
2801 static inline struct dentry *securityfs_create_file(const char *name,
2803 struct dentry *parent,
2805 const struct file_operations *fops)
2807 return ERR_PTR(-ENODEV);
2810 static inline void securityfs_remove(struct dentry *dentry)
2815 #endif /* ! __LINUX_SECURITY_H */