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(struct task_struct *parent, struct task_struct *child,
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;
84 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
85 extern int cap_netlink_recv(struct sk_buff *skb, int cap);
87 extern unsigned long mmap_min_addr;
89 * Values used in the task_security_ops calls
91 /* setuid or setgid, id0 == uid or gid */
92 #define LSM_SETID_ID 1
94 /* setreuid or setregid, id0 == real, id1 == eff */
95 #define LSM_SETID_RE 2
97 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
98 #define LSM_SETID_RES 4
100 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
101 #define LSM_SETID_FS 8
103 /* forward declares to avoid warnings */
106 struct swap_info_struct;
109 /* bprm_apply_creds unsafe reasons */
110 #define LSM_UNSAFE_SHARE 1
111 #define LSM_UNSAFE_PTRACE 2
112 #define LSM_UNSAFE_PTRACE_CAP 4
114 #ifdef CONFIG_SECURITY
116 struct security_mnt_opts {
122 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
124 opts->mnt_opts = NULL;
125 opts->mnt_opts_flags = NULL;
126 opts->num_mnt_opts = 0;
129 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
133 for (i = 0; i < opts->num_mnt_opts; i++)
134 kfree(opts->mnt_opts[i]);
135 kfree(opts->mnt_opts);
136 opts->mnt_opts = NULL;
137 kfree(opts->mnt_opts_flags);
138 opts->mnt_opts_flags = NULL;
139 opts->num_mnt_opts = 0;
143 * struct security_operations - main security structure
145 * Security module identifier.
148 * A string that acts as a unique identifeir for the LSM with max number
149 * of characters = SECURITY_NAME_MAX.
151 * Security hooks for program execution operations.
153 * @bprm_alloc_security:
154 * Allocate and attach a security structure to the @bprm->security field.
155 * The security field is initialized to NULL when the bprm structure is
157 * @bprm contains the linux_binprm structure to be modified.
158 * Return 0 if operation was successful.
159 * @bprm_free_security:
160 * @bprm contains the linux_binprm structure to be modified.
161 * Deallocate and clear the @bprm->security field.
163 * Compute and set the security attributes of a process being transformed
164 * by an execve operation based on the old attributes (current->security)
165 * and the information saved in @bprm->security by the set_security hook.
166 * Since this hook function (and its caller) are void, this hook can not
167 * return an error. However, it can leave the security attributes of the
168 * process unchanged if an access failure occurs at this point.
169 * bprm_apply_creds is called under task_lock. @unsafe indicates various
170 * reasons why it may be unsafe to change security state.
171 * @bprm contains the linux_binprm structure.
172 * @bprm_post_apply_creds:
173 * Runs after bprm_apply_creds with the task_lock dropped, so that
174 * functions which cannot be called safely under the task_lock can
175 * be used. This hook is a good place to perform state changes on
176 * the process such as closing open file descriptors to which access
177 * is no longer granted if the attributes were changed.
178 * Note that a security module might need to save state between
179 * bprm_apply_creds and bprm_post_apply_creds to store the decision
180 * on whether the process may proceed.
181 * @bprm contains the linux_binprm structure.
182 * @bprm_set_security:
183 * Save security information in the bprm->security field, typically based
184 * on information about the bprm->file, for later use by the apply_creds
185 * hook. This hook may also optionally check permissions (e.g. for
186 * transitions between security domains).
187 * This hook may be called multiple times during a single execve, e.g. for
188 * interpreters. The hook can tell whether it has already been called by
189 * checking to see if @bprm->security is non-NULL. If so, then the hook
190 * may decide either to retain the security information saved earlier or
192 * @bprm contains the linux_binprm structure.
193 * Return 0 if the hook is successful and permission is granted.
194 * @bprm_check_security:
195 * This hook mediates the point when a search for a binary handler will
196 * begin. It allows a check the @bprm->security value which is set in
197 * the preceding set_security call. The primary difference from
198 * set_security is that the argv list and envp list are reliably
199 * available in @bprm. This hook may be called multiple times
200 * during a single execve; and in each pass set_security is called
202 * @bprm contains the linux_binprm structure.
203 * Return 0 if the hook is successful and permission is granted.
205 * Return a boolean value (0 or 1) indicating whether a "secure exec"
206 * is required. The flag is passed in the auxiliary table
207 * on the initial stack to the ELF interpreter to indicate whether libc
208 * should enable secure mode.
209 * @bprm contains the linux_binprm structure.
211 * Security hooks for filesystem operations.
213 * @sb_alloc_security:
214 * Allocate and attach a security structure to the sb->s_security field.
215 * The s_security field is initialized to NULL when the structure is
217 * @sb contains the super_block structure to be modified.
218 * Return 0 if operation was successful.
220 * Deallocate and clear the sb->s_security field.
221 * @sb contains the super_block structure to be modified.
223 * Check permission before obtaining filesystem statistics for the @mnt
225 * @dentry is a handle on the superblock for the filesystem.
226 * Return 0 if permission is granted.
228 * Check permission before an object specified by @dev_name is mounted on
229 * the mount point named by @nd. For an ordinary mount, @dev_name
230 * identifies a device if the file system type requires a device. For a
231 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
232 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
233 * pathname of the object being mounted.
234 * @dev_name contains the name for object being mounted.
235 * @path contains the path for mount point object.
236 * @type contains the filesystem type.
237 * @flags contains the mount flags.
238 * @data contains the filesystem-specific data.
239 * Return 0 if permission is granted.
241 * Allow mount option data to be copied prior to parsing by the filesystem,
242 * so that the security module can extract security-specific mount
243 * options cleanly (a filesystem may modify the data e.g. with strsep()).
244 * This also allows the original mount data to be stripped of security-
245 * specific options to avoid having to make filesystems aware of them.
246 * @type the type of filesystem being mounted.
247 * @orig the original mount data copied from userspace.
248 * @copy copied data which will be passed to the security module.
249 * Returns 0 if the copy was successful.
251 * Check permission before the device with superblock @mnt->sb is mounted
252 * on the mount point named by @nd.
253 * @mnt contains the vfsmount for device being mounted.
254 * @path contains the path for the mount point.
255 * Return 0 if permission is granted.
257 * Check permission before the @mnt file system is unmounted.
258 * @mnt contains the mounted file system.
259 * @flags contains the unmount flags, e.g. MNT_FORCE.
260 * Return 0 if permission is granted.
262 * Close any files in the @mnt mounted filesystem that are held open by
263 * the security module. This hook is called during an umount operation
264 * prior to checking whether the filesystem is still busy.
265 * @mnt contains the mounted filesystem.
267 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
268 * any files that were closed by umount_close. This hook is called during
269 * an umount operation if the umount fails after a call to the
271 * @mnt contains the mounted filesystem.
273 * Update the security module's state when a filesystem is remounted.
274 * This hook is only called if the remount was successful.
275 * @mnt contains the mounted file system.
276 * @flags contains the new filesystem flags.
277 * @data contains the filesystem-specific data.
279 * Update the security module's state when a filesystem is mounted.
280 * This hook is called any time a mount is successfully grafetd to
282 * @mnt contains the mounted filesystem.
283 * @mountpoint contains the path for the mount point.
285 * Check permission before pivoting the root filesystem.
286 * @old_path contains the path for the new location of the current root (put_old).
287 * @new_path contains the path for the new root (new_root).
288 * Return 0 if permission is granted.
289 * @sb_post_pivotroot:
290 * Update module state after a successful pivot.
291 * @old_path contains the path for the old root.
292 * @new_path contains the path for the new root.
294 * Get the security relevant mount options used for a superblock
295 * @sb the superblock to get security mount options from
296 * @opts binary data structure containing all lsm mount data
298 * Set the security relevant mount options used for a superblock
299 * @sb the superblock to set security mount options for
300 * @opts binary data structure containing all lsm mount data
301 * @sb_clone_mnt_opts:
302 * Copy all security options from a given superblock to another
303 * @oldsb old superblock which contain information to clone
304 * @newsb new superblock which needs filled in
305 * @sb_parse_opts_str:
306 * Parse a string of security data filling in the opts structure
307 * @options string containing all mount options known by the LSM
308 * @opts binary data structure usable by the LSM
310 * Security hooks for inode operations.
312 * @inode_alloc_security:
313 * Allocate and attach a security structure to @inode->i_security. The
314 * i_security field is initialized to NULL when the inode structure is
316 * @inode contains the inode structure.
317 * Return 0 if operation was successful.
318 * @inode_free_security:
319 * @inode contains the inode structure.
320 * Deallocate the inode security structure and set @inode->i_security to
322 * @inode_init_security:
323 * Obtain the security attribute name suffix and value to set on a newly
324 * created inode and set up the incore security field for the new inode.
325 * This hook is called by the fs code as part of the inode creation
326 * transaction and provides for atomic labeling of the inode, unlike
327 * the post_create/mkdir/... hooks called by the VFS. The hook function
328 * is expected to allocate the name and value via kmalloc, with the caller
329 * being responsible for calling kfree after using them.
330 * If the security module does not use security attributes or does
331 * not wish to put a security attribute on this particular inode,
332 * then it should return -EOPNOTSUPP to skip this processing.
333 * @inode contains the inode structure of the newly created inode.
334 * @dir contains the inode structure of the parent directory.
335 * @name will be set to the allocated name suffix (e.g. selinux).
336 * @value will be set to the allocated attribute value.
337 * @len will be set to the length of the value.
338 * Returns 0 if @name and @value have been successfully set,
339 * -EOPNOTSUPP if no security attribute is needed, or
340 * -ENOMEM on memory allocation failure.
342 * Check permission to create a regular file.
343 * @dir contains inode structure of the parent of the new file.
344 * @dentry contains the dentry structure for the file to be created.
345 * @mode contains the file mode of the file to be created.
346 * Return 0 if permission is granted.
348 * Check permission before creating a new hard link to a file.
349 * @old_dentry contains the dentry structure for an existing link to the file.
350 * @dir contains the inode structure of the parent directory of the new link.
351 * @new_dentry contains the dentry structure for the new link.
352 * Return 0 if permission is granted.
354 * Check the permission to remove a hard link to a file.
355 * @dir contains the inode structure of parent directory of the file.
356 * @dentry contains the dentry structure for file to be unlinked.
357 * Return 0 if permission is granted.
359 * Check the permission to create a symbolic link to a file.
360 * @dir contains the inode structure of parent directory of the symbolic link.
361 * @dentry contains the dentry structure of the symbolic link.
362 * @old_name contains the pathname of file.
363 * Return 0 if permission is granted.
365 * Check permissions to create a new directory in the existing directory
366 * associated with inode strcture @dir.
367 * @dir containst the inode structure of parent of the directory to be created.
368 * @dentry contains the dentry structure of new directory.
369 * @mode contains the mode of new directory.
370 * Return 0 if permission is granted.
372 * Check the permission to remove a directory.
373 * @dir contains the inode structure of parent of the directory to be removed.
374 * @dentry contains the dentry structure of directory to be removed.
375 * Return 0 if permission is granted.
377 * Check permissions when creating a special file (or a socket or a fifo
378 * file created via the mknod system call). Note that if mknod operation
379 * is being done for a regular file, then the create hook will be called
381 * @dir contains the inode structure of parent of the new file.
382 * @dentry contains the dentry structure of the new file.
383 * @mode contains the mode of the new file.
384 * @dev contains the device number.
385 * Return 0 if permission is granted.
387 * Check for permission to rename a file or directory.
388 * @old_dir contains the inode structure for parent of the old link.
389 * @old_dentry contains the dentry structure of the old link.
390 * @new_dir contains the inode structure for parent of the new link.
391 * @new_dentry contains the dentry structure of the new link.
392 * Return 0 if permission is granted.
394 * Check the permission to read the symbolic link.
395 * @dentry contains the dentry structure for the file link.
396 * Return 0 if permission is granted.
397 * @inode_follow_link:
398 * Check permission to follow a symbolic link when looking up a pathname.
399 * @dentry contains the dentry structure for the link.
400 * @nd contains the nameidata structure for the parent directory.
401 * Return 0 if permission is granted.
403 * Check permission before accessing an inode. This hook is called by the
404 * existing Linux permission function, so a security module can use it to
405 * provide additional checking for existing Linux permission checks.
406 * Notice that this hook is called when a file is opened (as well as many
407 * other operations), whereas the file_security_ops permission hook is
408 * called when the actual read/write operations are performed.
409 * @inode contains the inode structure to check.
410 * @mask contains the permission mask.
411 * @nd contains the nameidata (may be NULL).
412 * Return 0 if permission is granted.
414 * Check permission before setting file attributes. Note that the kernel
415 * call to notify_change is performed from several locations, whenever
416 * file attributes change (such as when a file is truncated, chown/chmod
417 * operations, transferring disk quotas, etc).
418 * @dentry contains the dentry structure for the file.
419 * @attr is the iattr structure containing the new file attributes.
420 * Return 0 if permission is granted.
422 * Check permission before obtaining file attributes.
423 * @mnt is the vfsmount where the dentry was looked up
424 * @dentry contains the dentry structure for the file.
425 * Return 0 if permission is granted.
427 * @inode contains the inode structure for deleted inode.
428 * This hook is called when a deleted inode is released (i.e. an inode
429 * with no hard links has its use count drop to zero). A security module
430 * can use this hook to release any persistent label associated with the
433 * Check permission before setting the extended attributes
434 * @value identified by @name for @dentry.
435 * Return 0 if permission is granted.
436 * @inode_post_setxattr:
437 * Update inode security field after successful setxattr operation.
438 * @value identified by @name for @dentry.
440 * Check permission before obtaining the extended attributes
441 * identified by @name for @dentry.
442 * Return 0 if permission is granted.
444 * Check permission before obtaining the list of extended attribute
446 * Return 0 if permission is granted.
447 * @inode_removexattr:
448 * Check permission before removing the extended attribute
449 * identified by @name for @dentry.
450 * Return 0 if permission is granted.
451 * @inode_getsecurity:
452 * Retrieve a copy of the extended attribute representation of the
453 * security label associated with @name for @inode via @buffer. Note that
454 * @name is the remainder of the attribute name after the security prefix
455 * has been removed. @alloc is used to specify of the call should return a
456 * value via the buffer or just the value length Return size of buffer on
458 * @inode_setsecurity:
459 * Set the security label associated with @name for @inode from the
460 * extended attribute value @value. @size indicates the size of the
461 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
462 * Note that @name is the remainder of the attribute name after the
463 * security. prefix has been removed.
464 * Return 0 on success.
465 * @inode_listsecurity:
466 * Copy the extended attribute names for the security labels
467 * associated with @inode into @buffer. The maximum size of @buffer
468 * is specified by @buffer_size. @buffer may be NULL to request
469 * the size of the buffer required.
470 * Returns number of bytes used/required on success.
471 * @inode_need_killpriv:
472 * Called when an inode has been changed.
473 * @dentry is the dentry being changed.
474 * Return <0 on error to abort the inode change operation.
475 * Return 0 if inode_killpriv does not need to be called.
476 * Return >0 if inode_killpriv does need to be called.
478 * The setuid bit is being removed. Remove similar security labels.
479 * Called with the dentry->d_inode->i_mutex held.
480 * @dentry is the dentry being changed.
481 * Return 0 on success. If error is returned, then the operation
482 * causing setuid bit removal is failed.
484 * Get the secid associated with the node.
485 * @inode contains a pointer to the inode.
486 * @secid contains a pointer to the location where result will be saved.
487 * In case of failure, @secid will be set to zero.
489 * Security hooks for file operations
492 * Check file permissions before accessing an open file. This hook is
493 * called by various operations that read or write files. A security
494 * module can use this hook to perform additional checking on these
495 * operations, e.g. to revalidate permissions on use to support privilege
496 * bracketing or policy changes. Notice that this hook is used when the
497 * actual read/write operations are performed, whereas the
498 * inode_security_ops hook is called when a file is opened (as well as
499 * many other operations).
500 * Caveat: Although this hook can be used to revalidate permissions for
501 * various system call operations that read or write files, it does not
502 * address the revalidation of permissions for memory-mapped files.
503 * Security modules must handle this separately if they need such
505 * @file contains the file structure being accessed.
506 * @mask contains the requested permissions.
507 * Return 0 if permission is granted.
508 * @file_alloc_security:
509 * Allocate and attach a security structure to the file->f_security field.
510 * The security field is initialized to NULL when the structure is first
512 * @file contains the file structure to secure.
513 * Return 0 if the hook is successful and permission is granted.
514 * @file_free_security:
515 * Deallocate and free any security structures stored in file->f_security.
516 * @file contains the file structure being modified.
518 * @file contains the file structure.
519 * @cmd contains the operation to perform.
520 * @arg contains the operational arguments.
521 * Check permission for an ioctl operation on @file. Note that @arg can
522 * sometimes represents a user space pointer; in other cases, it may be a
523 * simple integer value. When @arg represents a user space pointer, it
524 * should never be used by the security module.
525 * Return 0 if permission is granted.
527 * Check permissions for a mmap operation. The @file may be NULL, e.g.
528 * if mapping anonymous memory.
529 * @file contains the file structure for file to map (may be NULL).
530 * @reqprot contains the protection requested by the application.
531 * @prot contains the protection that will be applied by the kernel.
532 * @flags contains the operational flags.
533 * Return 0 if permission is granted.
535 * Check permissions before changing memory access permissions.
536 * @vma contains the memory region to modify.
537 * @reqprot contains the protection requested by the application.
538 * @prot contains the protection that will be applied by the kernel.
539 * Return 0 if permission is granted.
541 * Check permission before performing file locking operations.
542 * Note: this hook mediates both flock and fcntl style locks.
543 * @file contains the file structure.
544 * @cmd contains the posix-translated lock operation to perform
545 * (e.g. F_RDLCK, F_WRLCK).
546 * Return 0 if permission is granted.
548 * Check permission before allowing the file operation specified by @cmd
549 * from being performed on the file @file. Note that @arg can sometimes
550 * represents a user space pointer; in other cases, it may be a simple
551 * integer value. When @arg represents a user space pointer, it should
552 * never be used by the security module.
553 * @file contains the file structure.
554 * @cmd contains the operation to be performed.
555 * @arg contains the operational arguments.
556 * Return 0 if permission is granted.
558 * Save owner security information (typically from current->security) in
559 * file->f_security for later use by the send_sigiotask hook.
560 * @file contains the file structure to update.
561 * Return 0 on success.
562 * @file_send_sigiotask:
563 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
564 * process @tsk. Note that this hook is sometimes called from interrupt.
565 * Note that the fown_struct, @fown, is never outside the context of a
566 * struct file, so the file structure (and associated security information)
567 * can always be obtained:
568 * container_of(fown, struct file, f_owner)
569 * @tsk contains the structure of task receiving signal.
570 * @fown contains the file owner information.
571 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
572 * Return 0 if permission is granted.
574 * This hook allows security modules to control the ability of a process
575 * to receive an open file descriptor via socket IPC.
576 * @file contains the file structure being received.
577 * Return 0 if permission is granted.
579 * Security hook for dentry
582 * Save open-time permission checking state for later use upon
583 * file_permission, and recheck access if anything has changed
584 * since inode_permission.
586 * Security hooks for task operations.
589 * Check permission before creating a child process. See the clone(2)
590 * manual page for definitions of the @clone_flags.
591 * @clone_flags contains the flags indicating what should be shared.
592 * Return 0 if permission is granted.
593 * @task_alloc_security:
594 * @p contains the task_struct for child process.
595 * Allocate and attach a security structure to the p->security field. The
596 * security field is initialized to NULL when the task structure is
598 * Return 0 if operation was successful.
599 * @task_free_security:
600 * @p contains the task_struct for process.
601 * Deallocate and clear the p->security field.
603 * Check permission before setting one or more of the user identity
604 * attributes of the current process. The @flags parameter indicates
605 * which of the set*uid system calls invoked this hook and how to
606 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
607 * definitions at the beginning of this file for the @flags values and
609 * @id0 contains a uid.
610 * @id1 contains a uid.
611 * @id2 contains a uid.
612 * @flags contains one of the LSM_SETID_* values.
613 * Return 0 if permission is granted.
615 * Update the module's state after setting one or more of the user
616 * identity attributes of the current process. The @flags parameter
617 * indicates which of the set*uid system calls invoked this hook. If
618 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
619 * parameters are not used.
620 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
621 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
622 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
623 * @flags contains one of the LSM_SETID_* values.
624 * Return 0 on success.
626 * Check permission before setting one or more of the group identity
627 * attributes of the current process. The @flags parameter indicates
628 * which of the set*gid system calls invoked this hook and how to
629 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
630 * definitions at the beginning of this file for the @flags values and
632 * @id0 contains a gid.
633 * @id1 contains a gid.
634 * @id2 contains a gid.
635 * @flags contains one of the LSM_SETID_* values.
636 * Return 0 if permission is granted.
638 * Check permission before setting the process group identifier of the
639 * process @p to @pgid.
640 * @p contains the task_struct for process being modified.
641 * @pgid contains the new pgid.
642 * Return 0 if permission is granted.
644 * Check permission before getting the process group identifier of the
646 * @p contains the task_struct for the process.
647 * Return 0 if permission is granted.
649 * Check permission before getting the session identifier of the process
651 * @p contains the task_struct for the process.
652 * Return 0 if permission is granted.
654 * Retrieve the security identifier of the process @p.
655 * @p contains the task_struct for the process and place is into @secid.
656 * In case of failure, @secid will be set to zero.
659 * Check permission before setting the supplementary group set of the
661 * @group_info contains the new group information.
662 * Return 0 if permission is granted.
664 * Check permission before setting the nice value of @p to @nice.
665 * @p contains the task_struct of process.
666 * @nice contains the new nice value.
667 * Return 0 if permission is granted.
669 * Check permission before setting the ioprio value of @p to @ioprio.
670 * @p contains the task_struct of process.
671 * @ioprio contains the new ioprio value
672 * Return 0 if permission is granted.
674 * Check permission before getting the ioprio value of @p.
675 * @p contains the task_struct of process.
676 * Return 0 if permission is granted.
678 * Check permission before setting the resource limits of the current
679 * process for @resource to @new_rlim. The old resource limit values can
680 * be examined by dereferencing (current->signal->rlim + resource).
681 * @resource contains the resource whose limit is being set.
682 * @new_rlim contains the new limits for @resource.
683 * Return 0 if permission is granted.
684 * @task_setscheduler:
685 * Check permission before setting scheduling policy and/or parameters of
686 * process @p based on @policy and @lp.
687 * @p contains the task_struct for process.
688 * @policy contains the scheduling policy.
689 * @lp contains the scheduling parameters.
690 * Return 0 if permission is granted.
691 * @task_getscheduler:
692 * Check permission before obtaining scheduling information for process
694 * @p contains the task_struct for process.
695 * Return 0 if permission is granted.
697 * Check permission before moving memory owned by process @p.
698 * @p contains the task_struct for process.
699 * Return 0 if permission is granted.
701 * Check permission before sending signal @sig to @p. @info can be NULL,
702 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
703 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
704 * from the kernel and should typically be permitted.
705 * SIGIO signals are handled separately by the send_sigiotask hook in
707 * @p contains the task_struct for process.
708 * @info contains the signal information.
709 * @sig contains the signal value.
710 * @secid contains the sid of the process where the signal originated
711 * Return 0 if permission is granted.
713 * Check permission before allowing a process to reap a child process @p
714 * and collect its status information.
715 * @p contains the task_struct for process.
716 * Return 0 if permission is granted.
718 * Check permission before performing a process control operation on the
720 * @option contains the operation.
721 * @arg2 contains a argument.
722 * @arg3 contains a argument.
723 * @arg4 contains a argument.
724 * @arg5 contains a argument.
725 * @rc_p contains a pointer to communicate back the forced return code
726 * Return 0 if permission is granted, and non-zero if the security module
727 * has taken responsibility (setting *rc_p) for the prctl call.
728 * @task_reparent_to_init:
729 * Set the security attributes in @p->security for a kernel thread that
730 * is being reparented to the init task.
731 * @p contains the task_struct for the kernel thread.
733 * Set the security attributes for an inode based on an associated task's
734 * security attributes, e.g. for /proc/pid inodes.
735 * @p contains the task_struct for the task.
736 * @inode contains the inode structure for the inode.
738 * Security hooks for Netlink messaging.
741 * Save security information for a netlink message so that permission
742 * checking can be performed when the message is processed. The security
743 * information can be saved using the eff_cap field of the
744 * netlink_skb_parms structure. Also may be used to provide fine
745 * grained control over message transmission.
746 * @sk associated sock of task sending the message.,
747 * @skb contains the sk_buff structure for the netlink message.
748 * Return 0 if the information was successfully saved and message
749 * is allowed to be transmitted.
751 * Check permission before processing the received netlink message in
753 * @skb contains the sk_buff structure for the netlink message.
754 * @cap indicates the capability required
755 * Return 0 if permission is granted.
757 * Security hooks for Unix domain networking.
759 * @unix_stream_connect:
760 * Check permissions before establishing a Unix domain stream connection
761 * between @sock and @other.
762 * @sock contains the socket structure.
763 * @other contains the peer socket structure.
764 * Return 0 if permission is granted.
766 * Check permissions before connecting or sending datagrams from @sock to
768 * @sock contains the socket structure.
769 * @sock contains the peer socket structure.
770 * Return 0 if permission is granted.
772 * The @unix_stream_connect and @unix_may_send hooks were necessary because
773 * Linux provides an alternative to the conventional file name space for Unix
774 * domain sockets. Whereas binding and connecting to sockets in the file name
775 * space is mediated by the typical file permissions (and caught by the mknod
776 * and permission hooks in inode_security_ops), binding and connecting to
777 * sockets in the abstract name space is completely unmediated. Sufficient
778 * control of Unix domain sockets in the abstract name space isn't possible
779 * using only the socket layer hooks, since we need to know the actual target
780 * socket, which is not looked up until we are inside the af_unix code.
782 * Security hooks for socket operations.
785 * Check permissions prior to creating a new socket.
786 * @family contains the requested protocol family.
787 * @type contains the requested communications type.
788 * @protocol contains the requested protocol.
789 * @kern set to 1 if a kernel socket.
790 * Return 0 if permission is granted.
791 * @socket_post_create:
792 * This hook allows a module to update or allocate a per-socket security
793 * structure. Note that the security field was not added directly to the
794 * socket structure, but rather, the socket security information is stored
795 * in the associated inode. Typically, the inode alloc_security hook will
796 * allocate and and attach security information to
797 * sock->inode->i_security. This hook may be used to update the
798 * sock->inode->i_security field with additional information that wasn't
799 * available when the inode was allocated.
800 * @sock contains the newly created socket structure.
801 * @family contains the requested protocol family.
802 * @type contains the requested communications type.
803 * @protocol contains the requested protocol.
804 * @kern set to 1 if a kernel socket.
806 * Check permission before socket protocol layer bind operation is
807 * performed and the socket @sock is bound to the address specified in the
808 * @address parameter.
809 * @sock contains the socket structure.
810 * @address contains the address to bind to.
811 * @addrlen contains the length of address.
812 * Return 0 if permission is granted.
814 * Check permission before socket protocol layer connect operation
815 * attempts to connect socket @sock to a remote address, @address.
816 * @sock contains the socket structure.
817 * @address contains the address of remote endpoint.
818 * @addrlen contains the length of address.
819 * Return 0 if permission is granted.
821 * Check permission before socket protocol layer listen operation.
822 * @sock contains the socket structure.
823 * @backlog contains the maximum length for the pending connection queue.
824 * Return 0 if permission is granted.
826 * Check permission before accepting a new connection. Note that the new
827 * socket, @newsock, has been created and some information copied to it,
828 * but the accept operation has not actually been performed.
829 * @sock contains the listening socket structure.
830 * @newsock contains the newly created server socket for connection.
831 * Return 0 if permission is granted.
832 * @socket_post_accept:
833 * This hook allows a security module to copy security
834 * information into the newly created socket's inode.
835 * @sock contains the listening socket structure.
836 * @newsock contains the newly created server socket for connection.
838 * Check permission before transmitting a message to another socket.
839 * @sock contains the socket structure.
840 * @msg contains the message to be transmitted.
841 * @size contains the size of message.
842 * Return 0 if permission is granted.
844 * Check permission before receiving a message from a socket.
845 * @sock contains the socket structure.
846 * @msg contains the message structure.
847 * @size contains the size of message structure.
848 * @flags contains the operational flags.
849 * Return 0 if permission is granted.
850 * @socket_getsockname:
851 * Check permission before the local address (name) of the socket object
852 * @sock is retrieved.
853 * @sock contains the socket structure.
854 * Return 0 if permission is granted.
855 * @socket_getpeername:
856 * Check permission before the remote address (name) of a socket object
857 * @sock is retrieved.
858 * @sock contains the socket structure.
859 * Return 0 if permission is granted.
860 * @socket_getsockopt:
861 * Check permissions before retrieving the options associated with socket
863 * @sock contains the socket structure.
864 * @level contains the protocol level to retrieve option from.
865 * @optname contains the name of option to retrieve.
866 * Return 0 if permission is granted.
867 * @socket_setsockopt:
868 * Check permissions before setting the options associated with socket
870 * @sock contains the socket structure.
871 * @level contains the protocol level to set options for.
872 * @optname contains the name of the option to set.
873 * Return 0 if permission is granted.
875 * Checks permission before all or part of a connection on the socket
876 * @sock is shut down.
877 * @sock contains the socket structure.
878 * @how contains the flag indicating how future sends and receives are handled.
879 * Return 0 if permission is granted.
880 * @socket_sock_rcv_skb:
881 * Check permissions on incoming network packets. This hook is distinct
882 * from Netfilter's IP input hooks since it is the first time that the
883 * incoming sk_buff @skb has been associated with a particular socket, @sk.
884 * @sk contains the sock (not socket) associated with the incoming sk_buff.
885 * @skb contains the incoming network data.
886 * @socket_getpeersec_stream:
887 * This hook allows the security module to provide peer socket security
888 * state for unix or connected tcp sockets to userspace via getsockopt
889 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
890 * socket is associated with an ipsec SA.
891 * @sock is the local socket.
892 * @optval userspace memory where the security state is to be copied.
893 * @optlen userspace int where the module should copy the actual length
894 * of the security state.
895 * @len as input is the maximum length to copy to userspace provided
897 * Return 0 if all is well, otherwise, typical getsockopt return
899 * @socket_getpeersec_dgram:
900 * This hook allows the security module to provide peer socket security
901 * state for udp sockets on a per-packet basis to userspace via
902 * getsockopt SO_GETPEERSEC. The application must first have indicated
903 * the IP_PASSSEC option via getsockopt. It can then retrieve the
904 * security state returned by this hook for a packet via the SCM_SECURITY
905 * ancillary message type.
906 * @skb is the skbuff for the packet being queried
907 * @secdata is a pointer to a buffer in which to copy the security data
908 * @seclen is the maximum length for @secdata
909 * Return 0 on success, error on failure.
910 * @sk_alloc_security:
911 * Allocate and attach a security structure to the sk->sk_security field,
912 * which is used to copy security attributes between local stream sockets.
914 * Deallocate security structure.
915 * @sk_clone_security:
916 * Clone/copy security structure.
918 * Retrieve the LSM-specific secid for the sock to enable caching of network
921 * Sets the socket's isec sid to the sock's sid.
922 * @inet_conn_request:
923 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
925 * Sets the new child socket's sid to the openreq sid.
926 * @inet_conn_established:
927 * Sets the connection's peersid to the secmark on skb.
928 * @req_classify_flow:
929 * Sets the flow's sid to the openreq sid.
931 * Security hooks for XFRM operations.
933 * @xfrm_policy_alloc_security:
934 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
935 * Database used by the XFRM system.
936 * @sec_ctx contains the security context information being provided by
937 * the user-level policy update program (e.g., setkey).
938 * Allocate a security structure to the xp->security field; the security
939 * field is initialized to NULL when the xfrm_policy is allocated.
940 * Return 0 if operation was successful (memory to allocate, legal context)
941 * @xfrm_policy_clone_security:
942 * @old_ctx contains an existing xfrm_sec_ctx.
943 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
944 * Allocate a security structure in new_ctxp that contains the
945 * information from the old_ctx structure.
946 * Return 0 if operation was successful (memory to allocate).
947 * @xfrm_policy_free_security:
948 * @ctx contains the xfrm_sec_ctx
949 * Deallocate xp->security.
950 * @xfrm_policy_delete_security:
951 * @ctx contains the xfrm_sec_ctx.
952 * Authorize deletion of xp->security.
953 * @xfrm_state_alloc_security:
954 * @x contains the xfrm_state being added to the Security Association
955 * Database by the XFRM system.
956 * @sec_ctx contains the security context information being provided by
957 * the user-level SA generation program (e.g., setkey or racoon).
958 * @secid contains the secid from which to take the mls portion of the context.
959 * Allocate a security structure to the x->security field; the security
960 * field is initialized to NULL when the xfrm_state is allocated. Set the
961 * context to correspond to either sec_ctx or polsec, with the mls portion
962 * taken from secid in the latter case.
963 * Return 0 if operation was successful (memory to allocate, legal context).
964 * @xfrm_state_free_security:
965 * @x contains the xfrm_state.
966 * Deallocate x->security.
967 * @xfrm_state_delete_security:
968 * @x contains the xfrm_state.
969 * Authorize deletion of x->security.
970 * @xfrm_policy_lookup:
971 * @ctx contains the xfrm_sec_ctx for which the access control is being
973 * @fl_secid contains the flow security label that is used to authorize
974 * access to the policy xp.
975 * @dir contains the direction of the flow (input or output).
976 * Check permission when a flow selects a xfrm_policy for processing
977 * XFRMs on a packet. The hook is called when selecting either a
978 * per-socket policy or a generic xfrm policy.
979 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
981 * @xfrm_state_pol_flow_match:
982 * @x contains the state to match.
983 * @xp contains the policy to check for a match.
984 * @fl contains the flow to check for a match.
985 * Return 1 if there is a match.
986 * @xfrm_decode_session:
987 * @skb points to skb to decode.
988 * @secid points to the flow key secid to set.
989 * @ckall says if all xfrms used should be checked for same secid.
990 * Return 0 if ckall is zero or all xfrms used have the same secid.
992 * Security hooks affecting all Key Management operations
995 * Permit allocation of a key and assign security data. Note that key does
996 * not have a serial number assigned at this point.
997 * @key points to the key.
998 * @flags is the allocation flags
999 * Return 0 if permission is granted, -ve error otherwise.
1001 * Notification of destruction; free security data.
1002 * @key points to the key.
1005 * See whether a specific operational right is granted to a process on a
1007 * @key_ref refers to the key (key pointer + possession attribute bit).
1008 * @context points to the process to provide the context against which to
1009 * evaluate the security data on the key.
1010 * @perm describes the combination of permissions required of this key.
1011 * Return 1 if permission granted, 0 if permission denied and -ve it the
1012 * normal permissions model should be effected.
1014 * Get a textual representation of the security context attached to a key
1015 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1016 * allocates the storage for the NUL-terminated string and the caller
1018 * @key points to the key to be queried.
1019 * @_buffer points to a pointer that should be set to point to the
1020 * resulting string (if no label or an error occurs).
1021 * Return the length of the string (including terminating NUL) or -ve if
1023 * May also return 0 (and a NULL buffer pointer) if there is no label.
1025 * Security hooks affecting all System V IPC operations.
1028 * Check permissions for access to IPC
1029 * @ipcp contains the kernel IPC permission structure
1030 * @flag contains the desired (requested) permission set
1031 * Return 0 if permission is granted.
1033 * Get the secid associated with the ipc object.
1034 * @ipcp contains the kernel IPC permission structure.
1035 * @secid contains a pointer to the location where result will be saved.
1036 * In case of failure, @secid will be set to zero.
1038 * Security hooks for individual messages held in System V IPC message queues
1039 * @msg_msg_alloc_security:
1040 * Allocate and attach a security structure to the msg->security field.
1041 * The security field is initialized to NULL when the structure is first
1043 * @msg contains the message structure to be modified.
1044 * Return 0 if operation was successful and permission is granted.
1045 * @msg_msg_free_security:
1046 * Deallocate the security structure for this message.
1047 * @msg contains the message structure to be modified.
1049 * Security hooks for System V IPC Message Queues
1051 * @msg_queue_alloc_security:
1052 * Allocate and attach a security structure to the
1053 * msq->q_perm.security field. The security field is initialized to
1054 * NULL when the structure is first created.
1055 * @msq contains the message queue structure to be modified.
1056 * Return 0 if operation was successful and permission is granted.
1057 * @msg_queue_free_security:
1058 * Deallocate security structure for this message queue.
1059 * @msq contains the message queue structure to be modified.
1060 * @msg_queue_associate:
1061 * Check permission when a message queue is requested through the
1062 * msgget system call. This hook is only called when returning the
1063 * message queue identifier for an existing message queue, not when a
1064 * new message queue is created.
1065 * @msq contains the message queue to act upon.
1066 * @msqflg contains the operation control flags.
1067 * Return 0 if permission is granted.
1068 * @msg_queue_msgctl:
1069 * Check permission when a message control operation specified by @cmd
1070 * is to be performed on the message queue @msq.
1071 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1072 * @msq contains the message queue to act upon. May be NULL.
1073 * @cmd contains the operation to be performed.
1074 * Return 0 if permission is granted.
1075 * @msg_queue_msgsnd:
1076 * Check permission before a message, @msg, is enqueued on the message
1078 * @msq contains the message queue to send message to.
1079 * @msg contains the message to be enqueued.
1080 * @msqflg contains operational flags.
1081 * Return 0 if permission is granted.
1082 * @msg_queue_msgrcv:
1083 * Check permission before a message, @msg, is removed from the message
1084 * queue, @msq. The @target task structure contains a pointer to the
1085 * process that will be receiving the message (not equal to the current
1086 * process when inline receives are being performed).
1087 * @msq contains the message queue to retrieve message from.
1088 * @msg contains the message destination.
1089 * @target contains the task structure for recipient process.
1090 * @type contains the type of message requested.
1091 * @mode contains the operational flags.
1092 * Return 0 if permission is granted.
1094 * Security hooks for System V Shared Memory Segments
1096 * @shm_alloc_security:
1097 * Allocate and attach a security structure to the shp->shm_perm.security
1098 * field. The security field is initialized to NULL when the structure is
1100 * @shp contains the shared memory structure to be modified.
1101 * Return 0 if operation was successful and permission is granted.
1102 * @shm_free_security:
1103 * Deallocate the security struct for this memory segment.
1104 * @shp contains the shared memory structure to be modified.
1106 * Check permission when a shared memory region is requested through the
1107 * shmget system call. This hook is only called when returning the shared
1108 * memory region identifier for an existing region, not when a new shared
1109 * memory region is created.
1110 * @shp contains the shared memory structure to be modified.
1111 * @shmflg contains the operation control flags.
1112 * Return 0 if permission is granted.
1114 * Check permission when a shared memory control operation specified by
1115 * @cmd is to be performed on the shared memory region @shp.
1116 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1117 * @shp contains shared memory structure to be modified.
1118 * @cmd contains the operation to be performed.
1119 * Return 0 if permission is granted.
1121 * Check permissions prior to allowing the shmat system call to attach the
1122 * shared memory segment @shp to the data segment of the calling process.
1123 * The attaching address is specified by @shmaddr.
1124 * @shp contains the shared memory structure to be modified.
1125 * @shmaddr contains the address to attach memory region to.
1126 * @shmflg contains the operational flags.
1127 * Return 0 if permission is granted.
1129 * Security hooks for System V Semaphores
1131 * @sem_alloc_security:
1132 * Allocate and attach a security structure to the sma->sem_perm.security
1133 * field. The security field is initialized to NULL when the structure is
1135 * @sma contains the semaphore structure
1136 * Return 0 if operation was successful and permission is granted.
1137 * @sem_free_security:
1138 * deallocate security struct for this semaphore
1139 * @sma contains the semaphore structure.
1141 * Check permission when a semaphore is requested through the semget
1142 * system call. This hook is only called when returning the semaphore
1143 * identifier for an existing semaphore, not when a new one must be
1145 * @sma contains the semaphore structure.
1146 * @semflg contains the operation control flags.
1147 * Return 0 if permission is granted.
1149 * Check permission when a semaphore operation specified by @cmd is to be
1150 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
1151 * IPC_INFO or SEM_INFO.
1152 * @sma contains the semaphore structure. May be NULL.
1153 * @cmd contains the operation to be performed.
1154 * Return 0 if permission is granted.
1156 * Check permissions before performing operations on members of the
1157 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1159 * @sma contains the semaphore structure.
1160 * @sops contains the operations to perform.
1161 * @nsops contains the number of operations to perform.
1162 * @alter contains the flag indicating whether changes are to be made.
1163 * Return 0 if permission is granted.
1166 * Check permission before allowing the @parent process to trace the
1168 * Security modules may also want to perform a process tracing check
1169 * during an execve in the set_security or apply_creds hooks of
1170 * binprm_security_ops if the process is being traced and its security
1171 * attributes would be changed by the execve.
1172 * @parent contains the task_struct structure for parent process.
1173 * @child contains the task_struct structure for child process.
1174 * @mode contains the PTRACE_MODE flags indicating the form of access.
1175 * Return 0 if permission is granted.
1177 * Get the @effective, @inheritable, and @permitted capability sets for
1178 * the @target process. The hook may also perform permission checking to
1179 * determine if the current process is allowed to see the capability sets
1180 * of the @target process.
1181 * @target contains the task_struct structure for target process.
1182 * @effective contains the effective capability set.
1183 * @inheritable contains the inheritable capability set.
1184 * @permitted contains the permitted capability set.
1185 * Return 0 if the capability sets were successfully obtained.
1187 * Check permission before setting the @effective, @inheritable, and
1188 * @permitted capability sets for the @target process.
1189 * Caveat: @target is also set to current if a set of processes is
1190 * specified (i.e. all processes other than current and init or a
1191 * particular process group). Hence, the capset_set hook may need to
1192 * revalidate permission to the actual target process.
1193 * @target contains the task_struct structure for target process.
1194 * @effective contains the effective capability set.
1195 * @inheritable contains the inheritable capability set.
1196 * @permitted contains the permitted capability set.
1197 * Return 0 if permission is granted.
1199 * Set the @effective, @inheritable, and @permitted capability sets for
1200 * the @target process. Since capset_check cannot always check permission
1201 * to the real @target process, this hook may also perform permission
1202 * checking to determine if the current process is allowed to set the
1203 * capability sets of the @target process. However, this hook has no way
1204 * of returning an error due to the structure of the sys_capset code.
1205 * @target contains the task_struct structure for target process.
1206 * @effective contains the effective capability set.
1207 * @inheritable contains the inheritable capability set.
1208 * @permitted contains the permitted capability set.
1210 * Check whether the @tsk process has the @cap capability.
1211 * @tsk contains the task_struct for the process.
1212 * @cap contains the capability <include/linux/capability.h>.
1213 * Return 0 if the capability is granted for @tsk.
1215 * Check permission before enabling or disabling process accounting. If
1216 * accounting is being enabled, then @file refers to the open file used to
1217 * store accounting records. If accounting is being disabled, then @file
1219 * @file contains the file structure for the accounting file (may be NULL).
1220 * Return 0 if permission is granted.
1222 * Check permission before accessing the @table sysctl variable in the
1223 * manner specified by @op.
1224 * @table contains the ctl_table structure for the sysctl variable.
1225 * @op contains the operation (001 = search, 002 = write, 004 = read).
1226 * Return 0 if permission is granted.
1228 * Check permission before accessing the kernel message ring or changing
1229 * logging to the console.
1230 * See the syslog(2) manual page for an explanation of the @type values.
1231 * @type contains the type of action.
1232 * Return 0 if permission is granted.
1234 * Check permission to change the system time.
1235 * struct timespec and timezone are defined in include/linux/time.h
1236 * @ts contains new time
1237 * @tz contains new timezone
1238 * Return 0 if permission is granted.
1239 * @vm_enough_memory:
1240 * Check permissions for allocating a new virtual mapping.
1241 * @mm contains the mm struct it is being added to.
1242 * @pages contains the number of pages.
1243 * Return 0 if permission is granted.
1245 * @register_security:
1246 * allow module stacking.
1247 * @name contains the name of the security module being stacked.
1248 * @ops contains a pointer to the struct security_operations of the module to stack.
1251 * Convert secid to security context.
1252 * @secid contains the security ID.
1253 * @secdata contains the pointer that stores the converted security context.
1255 * Convert security context to secid.
1256 * @secid contains the pointer to the generated security ID.
1257 * @secdata contains the security context.
1260 * Release the security context.
1261 * @secdata contains the security context.
1262 * @seclen contains the length of the security context.
1264 * Security hooks for Audit
1267 * Allocate and initialize an LSM audit rule structure.
1268 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1269 * @op contains the operator the rule uses.
1270 * @rulestr contains the context where the rule will be applied to.
1271 * @lsmrule contains a pointer to receive the result.
1272 * Return 0 if @lsmrule has been successfully set,
1273 * -EINVAL in case of an invalid rule.
1275 * @audit_rule_known:
1276 * Specifies whether given @rule contains any fields related to current LSM.
1277 * @rule contains the audit rule of interest.
1278 * Return 1 in case of relation found, 0 otherwise.
1280 * @audit_rule_match:
1281 * Determine if given @secid matches a rule previously approved
1282 * by @audit_rule_known.
1283 * @secid contains the security id in question.
1284 * @field contains the field which relates to current LSM.
1285 * @op contains the operator that will be used for matching.
1286 * @rule points to the audit rule that will be checked against.
1287 * @actx points to the audit context associated with the check.
1288 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1291 * Deallocate the LSM audit rule structure previously allocated by
1293 * @rule contains the allocated rule
1295 * This is the main security structure.
1297 struct security_operations {
1298 char name[SECURITY_NAME_MAX + 1];
1300 int (*ptrace) (struct task_struct *parent, struct task_struct *child,
1302 int (*capget) (struct task_struct *target,
1303 kernel_cap_t *effective,
1304 kernel_cap_t *inheritable, kernel_cap_t *permitted);
1305 int (*capset_check) (struct task_struct *target,
1306 kernel_cap_t *effective,
1307 kernel_cap_t *inheritable,
1308 kernel_cap_t *permitted);
1309 void (*capset_set) (struct task_struct *target,
1310 kernel_cap_t *effective,
1311 kernel_cap_t *inheritable,
1312 kernel_cap_t *permitted);
1313 int (*capable) (struct task_struct *tsk, int cap);
1314 int (*acct) (struct file *file);
1315 int (*sysctl) (struct ctl_table *table, int op);
1316 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1317 int (*quota_on) (struct dentry *dentry);
1318 int (*syslog) (int type);
1319 int (*settime) (struct timespec *ts, struct timezone *tz);
1320 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
1322 int (*bprm_alloc_security) (struct linux_binprm *bprm);
1323 void (*bprm_free_security) (struct linux_binprm *bprm);
1324 void (*bprm_apply_creds) (struct linux_binprm *bprm, int unsafe);
1325 void (*bprm_post_apply_creds) (struct linux_binprm *bprm);
1326 int (*bprm_set_security) (struct linux_binprm *bprm);
1327 int (*bprm_check_security) (struct linux_binprm *bprm);
1328 int (*bprm_secureexec) (struct linux_binprm *bprm);
1330 int (*sb_alloc_security) (struct super_block *sb);
1331 void (*sb_free_security) (struct super_block *sb);
1332 int (*sb_copy_data) (char *orig, char *copy);
1333 int (*sb_kern_mount) (struct super_block *sb, void *data);
1334 int (*sb_statfs) (struct dentry *dentry);
1335 int (*sb_mount) (char *dev_name, struct path *path,
1336 char *type, unsigned long flags, void *data);
1337 int (*sb_check_sb) (struct vfsmount *mnt, struct path *path);
1338 int (*sb_umount) (struct vfsmount *mnt, int flags);
1339 void (*sb_umount_close) (struct vfsmount *mnt);
1340 void (*sb_umount_busy) (struct vfsmount *mnt);
1341 void (*sb_post_remount) (struct vfsmount *mnt,
1342 unsigned long flags, void *data);
1343 void (*sb_post_addmount) (struct vfsmount *mnt,
1344 struct path *mountpoint);
1345 int (*sb_pivotroot) (struct path *old_path,
1346 struct path *new_path);
1347 void (*sb_post_pivotroot) (struct path *old_path,
1348 struct path *new_path);
1349 int (*sb_get_mnt_opts) (const struct super_block *sb,
1350 struct security_mnt_opts *opts);
1351 int (*sb_set_mnt_opts) (struct super_block *sb,
1352 struct security_mnt_opts *opts);
1353 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1354 struct super_block *newsb);
1355 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
1357 int (*inode_alloc_security) (struct inode *inode);
1358 void (*inode_free_security) (struct inode *inode);
1359 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1360 char **name, void **value, size_t *len);
1361 int (*inode_create) (struct inode *dir,
1362 struct dentry *dentry, int mode);
1363 int (*inode_link) (struct dentry *old_dentry,
1364 struct inode *dir, struct dentry *new_dentry);
1365 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1366 int (*inode_symlink) (struct inode *dir,
1367 struct dentry *dentry, const char *old_name);
1368 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
1369 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1370 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1371 int mode, dev_t dev);
1372 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1373 struct inode *new_dir, struct dentry *new_dentry);
1374 int (*inode_readlink) (struct dentry *dentry);
1375 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1376 int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd);
1377 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1378 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1379 void (*inode_delete) (struct inode *inode);
1380 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1381 const void *value, size_t size, int flags);
1382 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1383 const void *value, size_t size, int flags);
1384 int (*inode_getxattr) (struct dentry *dentry, const char *name);
1385 int (*inode_listxattr) (struct dentry *dentry);
1386 int (*inode_removexattr) (struct dentry *dentry, const char *name);
1387 int (*inode_need_killpriv) (struct dentry *dentry);
1388 int (*inode_killpriv) (struct dentry *dentry);
1389 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1390 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1391 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1392 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
1394 int (*file_permission) (struct file *file, int mask);
1395 int (*file_alloc_security) (struct file *file);
1396 void (*file_free_security) (struct file *file);
1397 int (*file_ioctl) (struct file *file, unsigned int cmd,
1399 int (*file_mmap) (struct file *file,
1400 unsigned long reqprot, unsigned long prot,
1401 unsigned long flags, unsigned long addr,
1402 unsigned long addr_only);
1403 int (*file_mprotect) (struct vm_area_struct *vma,
1404 unsigned long reqprot,
1405 unsigned long prot);
1406 int (*file_lock) (struct file *file, unsigned int cmd);
1407 int (*file_fcntl) (struct file *file, unsigned int cmd,
1409 int (*file_set_fowner) (struct file *file);
1410 int (*file_send_sigiotask) (struct task_struct *tsk,
1411 struct fown_struct *fown, int sig);
1412 int (*file_receive) (struct file *file);
1413 int (*dentry_open) (struct file *file);
1415 int (*task_create) (unsigned long clone_flags);
1416 int (*task_alloc_security) (struct task_struct *p);
1417 void (*task_free_security) (struct task_struct *p);
1418 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1419 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1420 uid_t old_euid, uid_t old_suid, int flags);
1421 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1422 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1423 int (*task_getpgid) (struct task_struct *p);
1424 int (*task_getsid) (struct task_struct *p);
1425 void (*task_getsecid) (struct task_struct *p, u32 *secid);
1426 int (*task_setgroups) (struct group_info *group_info);
1427 int (*task_setnice) (struct task_struct *p, int nice);
1428 int (*task_setioprio) (struct task_struct *p, int ioprio);
1429 int (*task_getioprio) (struct task_struct *p);
1430 int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim);
1431 int (*task_setscheduler) (struct task_struct *p, int policy,
1432 struct sched_param *lp);
1433 int (*task_getscheduler) (struct task_struct *p);
1434 int (*task_movememory) (struct task_struct *p);
1435 int (*task_kill) (struct task_struct *p,
1436 struct siginfo *info, int sig, u32 secid);
1437 int (*task_wait) (struct task_struct *p);
1438 int (*task_prctl) (int option, unsigned long arg2,
1439 unsigned long arg3, unsigned long arg4,
1440 unsigned long arg5, long *rc_p);
1441 void (*task_reparent_to_init) (struct task_struct *p);
1442 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
1444 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
1445 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
1447 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1448 void (*msg_msg_free_security) (struct msg_msg *msg);
1450 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1451 void (*msg_queue_free_security) (struct msg_queue *msq);
1452 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1453 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1454 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1455 struct msg_msg *msg, int msqflg);
1456 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1457 struct msg_msg *msg,
1458 struct task_struct *target,
1459 long type, int mode);
1461 int (*shm_alloc_security) (struct shmid_kernel *shp);
1462 void (*shm_free_security) (struct shmid_kernel *shp);
1463 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1464 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1465 int (*shm_shmat) (struct shmid_kernel *shp,
1466 char __user *shmaddr, int shmflg);
1468 int (*sem_alloc_security) (struct sem_array *sma);
1469 void (*sem_free_security) (struct sem_array *sma);
1470 int (*sem_associate) (struct sem_array *sma, int semflg);
1471 int (*sem_semctl) (struct sem_array *sma, int cmd);
1472 int (*sem_semop) (struct sem_array *sma,
1473 struct sembuf *sops, unsigned nsops, int alter);
1475 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1476 int (*netlink_recv) (struct sk_buff *skb, int cap);
1478 /* allow module stacking */
1479 int (*register_security) (const char *name,
1480 struct security_operations *ops);
1482 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1484 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1485 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1486 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
1487 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
1488 void (*release_secctx) (char *secdata, u32 seclen);
1490 #ifdef CONFIG_SECURITY_NETWORK
1491 int (*unix_stream_connect) (struct socket *sock,
1492 struct socket *other, struct sock *newsk);
1493 int (*unix_may_send) (struct socket *sock, struct socket *other);
1495 int (*socket_create) (int family, int type, int protocol, int kern);
1496 int (*socket_post_create) (struct socket *sock, int family,
1497 int type, int protocol, int kern);
1498 int (*socket_bind) (struct socket *sock,
1499 struct sockaddr *address, int addrlen);
1500 int (*socket_connect) (struct socket *sock,
1501 struct sockaddr *address, int addrlen);
1502 int (*socket_listen) (struct socket *sock, int backlog);
1503 int (*socket_accept) (struct socket *sock, struct socket *newsock);
1504 void (*socket_post_accept) (struct socket *sock,
1505 struct socket *newsock);
1506 int (*socket_sendmsg) (struct socket *sock,
1507 struct msghdr *msg, int size);
1508 int (*socket_recvmsg) (struct socket *sock,
1509 struct msghdr *msg, int size, int flags);
1510 int (*socket_getsockname) (struct socket *sock);
1511 int (*socket_getpeername) (struct socket *sock);
1512 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1513 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1514 int (*socket_shutdown) (struct socket *sock, int how);
1515 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
1516 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1517 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
1518 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
1519 void (*sk_free_security) (struct sock *sk);
1520 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
1521 void (*sk_getsecid) (struct sock *sk, u32 *secid);
1522 void (*sock_graft) (struct sock *sk, struct socket *parent);
1523 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1524 struct request_sock *req);
1525 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1526 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1527 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
1528 #endif /* CONFIG_SECURITY_NETWORK */
1530 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1531 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
1532 struct xfrm_user_sec_ctx *sec_ctx);
1533 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1534 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1535 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
1536 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
1537 struct xfrm_user_sec_ctx *sec_ctx,
1539 void (*xfrm_state_free_security) (struct xfrm_state *x);
1540 int (*xfrm_state_delete_security) (struct xfrm_state *x);
1541 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1542 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1543 struct xfrm_policy *xp,
1545 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
1546 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1548 /* key management security hooks */
1550 int (*key_alloc) (struct key *key, struct task_struct *tsk, unsigned long flags);
1551 void (*key_free) (struct key *key);
1552 int (*key_permission) (key_ref_t key_ref,
1553 struct task_struct *context,
1555 int (*key_getsecurity)(struct key *key, char **_buffer);
1556 #endif /* CONFIG_KEYS */
1559 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1560 int (*audit_rule_known) (struct audit_krule *krule);
1561 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1562 struct audit_context *actx);
1563 void (*audit_rule_free) (void *lsmrule);
1564 #endif /* CONFIG_AUDIT */
1568 extern int security_init(void);
1569 extern int security_module_enable(struct security_operations *ops);
1570 extern int register_security(struct security_operations *ops);
1571 extern int mod_reg_security(const char *name, struct security_operations *ops);
1572 extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
1573 struct dentry *parent, void *data,
1574 const struct file_operations *fops);
1575 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1576 extern void securityfs_remove(struct dentry *dentry);
1578 /* Security operations */
1579 int security_ptrace(struct task_struct *parent, struct task_struct *child,
1581 int security_capget(struct task_struct *target,
1582 kernel_cap_t *effective,
1583 kernel_cap_t *inheritable,
1584 kernel_cap_t *permitted);
1585 int security_capset_check(struct task_struct *target,
1586 kernel_cap_t *effective,
1587 kernel_cap_t *inheritable,
1588 kernel_cap_t *permitted);
1589 void security_capset_set(struct task_struct *target,
1590 kernel_cap_t *effective,
1591 kernel_cap_t *inheritable,
1592 kernel_cap_t *permitted);
1593 int security_capable(struct task_struct *tsk, int cap);
1594 int security_acct(struct file *file);
1595 int security_sysctl(struct ctl_table *table, int op);
1596 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1597 int security_quota_on(struct dentry *dentry);
1598 int security_syslog(int type);
1599 int security_settime(struct timespec *ts, struct timezone *tz);
1600 int security_vm_enough_memory(long pages);
1601 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
1602 int security_bprm_alloc(struct linux_binprm *bprm);
1603 void security_bprm_free(struct linux_binprm *bprm);
1604 void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
1605 void security_bprm_post_apply_creds(struct linux_binprm *bprm);
1606 int security_bprm_set(struct linux_binprm *bprm);
1607 int security_bprm_check(struct linux_binprm *bprm);
1608 int security_bprm_secureexec(struct linux_binprm *bprm);
1609 int security_sb_alloc(struct super_block *sb);
1610 void security_sb_free(struct super_block *sb);
1611 int security_sb_copy_data(char *orig, char *copy);
1612 int security_sb_kern_mount(struct super_block *sb, void *data);
1613 int security_sb_statfs(struct dentry *dentry);
1614 int security_sb_mount(char *dev_name, struct path *path,
1615 char *type, unsigned long flags, void *data);
1616 int security_sb_check_sb(struct vfsmount *mnt, struct path *path);
1617 int security_sb_umount(struct vfsmount *mnt, int flags);
1618 void security_sb_umount_close(struct vfsmount *mnt);
1619 void security_sb_umount_busy(struct vfsmount *mnt);
1620 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data);
1621 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
1622 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
1623 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
1624 int security_sb_get_mnt_opts(const struct super_block *sb,
1625 struct security_mnt_opts *opts);
1626 int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
1627 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1628 struct super_block *newsb);
1629 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
1631 int security_inode_alloc(struct inode *inode);
1632 void security_inode_free(struct inode *inode);
1633 int security_inode_init_security(struct inode *inode, struct inode *dir,
1634 char **name, void **value, size_t *len);
1635 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1636 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1637 struct dentry *new_dentry);
1638 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1639 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
1640 const char *old_name);
1641 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1642 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1643 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1644 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
1645 struct inode *new_dir, struct dentry *new_dentry);
1646 int security_inode_readlink(struct dentry *dentry);
1647 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
1648 int security_inode_permission(struct inode *inode, int mask, struct nameidata *nd);
1649 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1650 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
1651 void security_inode_delete(struct inode *inode);
1652 int security_inode_setxattr(struct dentry *dentry, const char *name,
1653 const void *value, size_t size, int flags);
1654 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1655 const void *value, size_t size, int flags);
1656 int security_inode_getxattr(struct dentry *dentry, const char *name);
1657 int security_inode_listxattr(struct dentry *dentry);
1658 int security_inode_removexattr(struct dentry *dentry, const char *name);
1659 int security_inode_need_killpriv(struct dentry *dentry);
1660 int security_inode_killpriv(struct dentry *dentry);
1661 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
1662 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1663 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
1664 void security_inode_getsecid(const struct inode *inode, u32 *secid);
1665 int security_file_permission(struct file *file, int mask);
1666 int security_file_alloc(struct file *file);
1667 void security_file_free(struct file *file);
1668 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1669 int security_file_mmap(struct file *file, unsigned long reqprot,
1670 unsigned long prot, unsigned long flags,
1671 unsigned long addr, unsigned long addr_only);
1672 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
1673 unsigned long prot);
1674 int security_file_lock(struct file *file, unsigned int cmd);
1675 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1676 int security_file_set_fowner(struct file *file);
1677 int security_file_send_sigiotask(struct task_struct *tsk,
1678 struct fown_struct *fown, int sig);
1679 int security_file_receive(struct file *file);
1680 int security_dentry_open(struct file *file);
1681 int security_task_create(unsigned long clone_flags);
1682 int security_task_alloc(struct task_struct *p);
1683 void security_task_free(struct task_struct *p);
1684 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
1685 int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
1686 uid_t old_suid, int flags);
1687 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags);
1688 int security_task_setpgid(struct task_struct *p, pid_t pgid);
1689 int security_task_getpgid(struct task_struct *p);
1690 int security_task_getsid(struct task_struct *p);
1691 void security_task_getsecid(struct task_struct *p, u32 *secid);
1692 int security_task_setgroups(struct group_info *group_info);
1693 int security_task_setnice(struct task_struct *p, int nice);
1694 int security_task_setioprio(struct task_struct *p, int ioprio);
1695 int security_task_getioprio(struct task_struct *p);
1696 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim);
1697 int security_task_setscheduler(struct task_struct *p,
1698 int policy, struct sched_param *lp);
1699 int security_task_getscheduler(struct task_struct *p);
1700 int security_task_movememory(struct task_struct *p);
1701 int security_task_kill(struct task_struct *p, struct siginfo *info,
1702 int sig, u32 secid);
1703 int security_task_wait(struct task_struct *p);
1704 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1705 unsigned long arg4, unsigned long arg5, long *rc_p);
1706 void security_task_reparent_to_init(struct task_struct *p);
1707 void security_task_to_inode(struct task_struct *p, struct inode *inode);
1708 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
1709 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
1710 int security_msg_msg_alloc(struct msg_msg *msg);
1711 void security_msg_msg_free(struct msg_msg *msg);
1712 int security_msg_queue_alloc(struct msg_queue *msq);
1713 void security_msg_queue_free(struct msg_queue *msq);
1714 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1715 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1716 int security_msg_queue_msgsnd(struct msg_queue *msq,
1717 struct msg_msg *msg, int msqflg);
1718 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1719 struct task_struct *target, long type, int mode);
1720 int security_shm_alloc(struct shmid_kernel *shp);
1721 void security_shm_free(struct shmid_kernel *shp);
1722 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1723 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1724 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1725 int security_sem_alloc(struct sem_array *sma);
1726 void security_sem_free(struct sem_array *sma);
1727 int security_sem_associate(struct sem_array *sma, int semflg);
1728 int security_sem_semctl(struct sem_array *sma, int cmd);
1729 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1730 unsigned nsops, int alter);
1731 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
1732 int security_getprocattr(struct task_struct *p, char *name, char **value);
1733 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1734 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1735 int security_netlink_recv(struct sk_buff *skb, int cap);
1736 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
1737 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
1738 void security_release_secctx(char *secdata, u32 seclen);
1740 #else /* CONFIG_SECURITY */
1741 struct security_mnt_opts {
1744 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1748 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1753 * This is the default capabilities functionality. Most of these functions
1754 * are just stubbed out, but a few must call the proper capable code.
1757 static inline int security_init(void)
1762 static inline int security_ptrace(struct task_struct *parent,
1763 struct task_struct *child,
1766 return cap_ptrace(parent, child, mode);
1769 static inline int security_capget(struct task_struct *target,
1770 kernel_cap_t *effective,
1771 kernel_cap_t *inheritable,
1772 kernel_cap_t *permitted)
1774 return cap_capget(target, effective, inheritable, permitted);
1777 static inline int security_capset_check(struct task_struct *target,
1778 kernel_cap_t *effective,
1779 kernel_cap_t *inheritable,
1780 kernel_cap_t *permitted)
1782 return cap_capset_check(target, effective, inheritable, permitted);
1785 static inline void security_capset_set(struct task_struct *target,
1786 kernel_cap_t *effective,
1787 kernel_cap_t *inheritable,
1788 kernel_cap_t *permitted)
1790 cap_capset_set(target, effective, inheritable, permitted);
1793 static inline int security_capable(struct task_struct *tsk, int cap)
1795 return cap_capable(tsk, cap);
1798 static inline int security_acct(struct file *file)
1803 static inline int security_sysctl(struct ctl_table *table, int op)
1808 static inline int security_quotactl(int cmds, int type, int id,
1809 struct super_block *sb)
1814 static inline int security_quota_on(struct dentry *dentry)
1819 static inline int security_syslog(int type)
1821 return cap_syslog(type);
1824 static inline int security_settime(struct timespec *ts, struct timezone *tz)
1826 return cap_settime(ts, tz);
1829 static inline int security_vm_enough_memory(long pages)
1831 return cap_vm_enough_memory(current->mm, pages);
1834 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1836 return cap_vm_enough_memory(mm, pages);
1839 static inline int security_bprm_alloc(struct linux_binprm *bprm)
1844 static inline void security_bprm_free(struct linux_binprm *bprm)
1847 static inline void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
1849 cap_bprm_apply_creds(bprm, unsafe);
1852 static inline void security_bprm_post_apply_creds(struct linux_binprm *bprm)
1857 static inline int security_bprm_set(struct linux_binprm *bprm)
1859 return cap_bprm_set_security(bprm);
1862 static inline int security_bprm_check(struct linux_binprm *bprm)
1867 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
1869 return cap_bprm_secureexec(bprm);
1872 static inline int security_sb_alloc(struct super_block *sb)
1877 static inline void security_sb_free(struct super_block *sb)
1880 static inline int security_sb_copy_data(char *orig, char *copy)
1885 static inline int security_sb_kern_mount(struct super_block *sb, void *data)
1890 static inline int security_sb_statfs(struct dentry *dentry)
1895 static inline int security_sb_mount(char *dev_name, struct path *path,
1896 char *type, unsigned long flags,
1902 static inline int security_sb_check_sb(struct vfsmount *mnt,
1908 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
1913 static inline void security_sb_umount_close(struct vfsmount *mnt)
1916 static inline void security_sb_umount_busy(struct vfsmount *mnt)
1919 static inline void security_sb_post_remount(struct vfsmount *mnt,
1920 unsigned long flags, void *data)
1923 static inline void security_sb_post_addmount(struct vfsmount *mnt,
1924 struct path *mountpoint)
1927 static inline int security_sb_pivotroot(struct path *old_path,
1928 struct path *new_path)
1933 static inline void security_sb_post_pivotroot(struct path *old_path,
1934 struct path *new_path)
1936 static inline int security_sb_get_mnt_opts(const struct super_block *sb,
1937 struct security_mnt_opts *opts)
1939 security_init_mnt_opts(opts);
1943 static inline int security_sb_set_mnt_opts(struct super_block *sb,
1944 struct security_mnt_opts *opts)
1949 static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1950 struct super_block *newsb)
1953 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
1958 static inline int security_inode_alloc(struct inode *inode)
1963 static inline void security_inode_free(struct inode *inode)
1966 static inline int security_inode_init_security(struct inode *inode,
1975 static inline int security_inode_create(struct inode *dir,
1976 struct dentry *dentry,
1982 static inline int security_inode_link(struct dentry *old_dentry,
1984 struct dentry *new_dentry)
1989 static inline int security_inode_unlink(struct inode *dir,
1990 struct dentry *dentry)
1995 static inline int security_inode_symlink(struct inode *dir,
1996 struct dentry *dentry,
1997 const char *old_name)
2002 static inline int security_inode_mkdir(struct inode *dir,
2003 struct dentry *dentry,
2009 static inline int security_inode_rmdir(struct inode *dir,
2010 struct dentry *dentry)
2015 static inline int security_inode_mknod(struct inode *dir,
2016 struct dentry *dentry,
2017 int mode, dev_t dev)
2022 static inline int security_inode_rename(struct inode *old_dir,
2023 struct dentry *old_dentry,
2024 struct inode *new_dir,
2025 struct dentry *new_dentry)
2030 static inline int security_inode_readlink(struct dentry *dentry)
2035 static inline int security_inode_follow_link(struct dentry *dentry,
2036 struct nameidata *nd)
2041 static inline int security_inode_permission(struct inode *inode, int mask,
2042 struct nameidata *nd)
2047 static inline int security_inode_setattr(struct dentry *dentry,
2053 static inline int security_inode_getattr(struct vfsmount *mnt,
2054 struct dentry *dentry)
2059 static inline void security_inode_delete(struct inode *inode)
2062 static inline int security_inode_setxattr(struct dentry *dentry,
2063 const char *name, const void *value, size_t size, int flags)
2065 return cap_inode_setxattr(dentry, name, value, size, flags);
2068 static inline void security_inode_post_setxattr(struct dentry *dentry,
2069 const char *name, const void *value, size_t size, int flags)
2072 static inline int security_inode_getxattr(struct dentry *dentry,
2078 static inline int security_inode_listxattr(struct dentry *dentry)
2083 static inline int security_inode_removexattr(struct dentry *dentry,
2086 return cap_inode_removexattr(dentry, name);
2089 static inline int security_inode_need_killpriv(struct dentry *dentry)
2091 return cap_inode_need_killpriv(dentry);
2094 static inline int security_inode_killpriv(struct dentry *dentry)
2096 return cap_inode_killpriv(dentry);
2099 static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
2104 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2109 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2114 static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2119 static inline int security_file_permission(struct file *file, int mask)
2124 static inline int security_file_alloc(struct file *file)
2129 static inline void security_file_free(struct file *file)
2132 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2138 static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2140 unsigned long flags,
2142 unsigned long addr_only)
2147 static inline int security_file_mprotect(struct vm_area_struct *vma,
2148 unsigned long reqprot,
2154 static inline int security_file_lock(struct file *file, unsigned int cmd)
2159 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2165 static inline int security_file_set_fowner(struct file *file)
2170 static inline int security_file_send_sigiotask(struct task_struct *tsk,
2171 struct fown_struct *fown,
2177 static inline int security_file_receive(struct file *file)
2182 static inline int security_dentry_open(struct file *file)
2187 static inline int security_task_create(unsigned long clone_flags)
2192 static inline int security_task_alloc(struct task_struct *p)
2197 static inline void security_task_free(struct task_struct *p)
2200 static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
2206 static inline int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
2207 uid_t old_suid, int flags)
2209 return cap_task_post_setuid(old_ruid, old_euid, old_suid, flags);
2212 static inline int security_task_setgid(gid_t id0, gid_t id1, gid_t id2,
2218 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
2223 static inline int security_task_getpgid(struct task_struct *p)
2228 static inline int security_task_getsid(struct task_struct *p)
2233 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
2238 static inline int security_task_setgroups(struct group_info *group_info)
2243 static inline int security_task_setnice(struct task_struct *p, int nice)
2245 return cap_task_setnice(p, nice);
2248 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
2250 return cap_task_setioprio(p, ioprio);
2253 static inline int security_task_getioprio(struct task_struct *p)
2258 static inline int security_task_setrlimit(unsigned int resource,
2259 struct rlimit *new_rlim)
2264 static inline int security_task_setscheduler(struct task_struct *p,
2266 struct sched_param *lp)
2268 return cap_task_setscheduler(p, policy, lp);
2271 static inline int security_task_getscheduler(struct task_struct *p)
2276 static inline int security_task_movememory(struct task_struct *p)
2281 static inline int security_task_kill(struct task_struct *p,
2282 struct siginfo *info, int sig,
2288 static inline int security_task_wait(struct task_struct *p)
2293 static inline int security_task_prctl(int option, unsigned long arg2,
2296 unsigned long arg5, long *rc_p)
2298 return cap_task_prctl(option, arg2, arg3, arg3, arg5, rc_p);
2301 static inline void security_task_reparent_to_init(struct task_struct *p)
2303 cap_task_reparent_to_init(p);
2306 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2309 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2315 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2320 static inline int security_msg_msg_alloc(struct msg_msg *msg)
2325 static inline void security_msg_msg_free(struct msg_msg *msg)
2328 static inline int security_msg_queue_alloc(struct msg_queue *msq)
2333 static inline void security_msg_queue_free(struct msg_queue *msq)
2336 static inline int security_msg_queue_associate(struct msg_queue *msq,
2342 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
2347 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2348 struct msg_msg *msg, int msqflg)
2353 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2354 struct msg_msg *msg,
2355 struct task_struct *target,
2356 long type, int mode)
2361 static inline int security_shm_alloc(struct shmid_kernel *shp)
2366 static inline void security_shm_free(struct shmid_kernel *shp)
2369 static inline int security_shm_associate(struct shmid_kernel *shp,
2375 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
2380 static inline int security_shm_shmat(struct shmid_kernel *shp,
2381 char __user *shmaddr, int shmflg)
2386 static inline int security_sem_alloc(struct sem_array *sma)
2391 static inline void security_sem_free(struct sem_array *sma)
2394 static inline int security_sem_associate(struct sem_array *sma, int semflg)
2399 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
2404 static inline int security_sem_semop(struct sem_array *sma,
2405 struct sembuf *sops, unsigned nsops,
2411 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
2414 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
2419 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2424 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
2426 return cap_netlink_send(sk, skb);
2429 static inline int security_netlink_recv(struct sk_buff *skb, int cap)
2431 return cap_netlink_recv(skb, cap);
2434 static inline struct dentry *securityfs_create_dir(const char *name,
2435 struct dentry *parent)
2437 return ERR_PTR(-ENODEV);
2440 static inline struct dentry *securityfs_create_file(const char *name,
2442 struct dentry *parent,
2444 const struct file_operations *fops)
2446 return ERR_PTR(-ENODEV);
2449 static inline void securityfs_remove(struct dentry *dentry)
2453 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2458 static inline int security_secctx_to_secid(const char *secdata,
2465 static inline void security_release_secctx(char *secdata, u32 seclen)
2468 #endif /* CONFIG_SECURITY */
2470 #ifdef CONFIG_SECURITY_NETWORK
2472 int security_unix_stream_connect(struct socket *sock, struct socket *other,
2473 struct sock *newsk);
2474 int security_unix_may_send(struct socket *sock, struct socket *other);
2475 int security_socket_create(int family, int type, int protocol, int kern);
2476 int security_socket_post_create(struct socket *sock, int family,
2477 int type, int protocol, int kern);
2478 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2479 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2480 int security_socket_listen(struct socket *sock, int backlog);
2481 int security_socket_accept(struct socket *sock, struct socket *newsock);
2482 void security_socket_post_accept(struct socket *sock, struct socket *newsock);
2483 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2484 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2485 int size, int flags);
2486 int security_socket_getsockname(struct socket *sock);
2487 int security_socket_getpeername(struct socket *sock);
2488 int security_socket_getsockopt(struct socket *sock, int level, int optname);
2489 int security_socket_setsockopt(struct socket *sock, int level, int optname);
2490 int security_socket_shutdown(struct socket *sock, int how);
2491 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2492 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2493 int __user *optlen, unsigned len);
2494 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2495 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2496 void security_sk_free(struct sock *sk);
2497 void security_sk_clone(const struct sock *sk, struct sock *newsk);
2498 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2499 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2500 void security_sock_graft(struct sock*sk, struct socket *parent);
2501 int security_inet_conn_request(struct sock *sk,
2502 struct sk_buff *skb, struct request_sock *req);
2503 void security_inet_csk_clone(struct sock *newsk,
2504 const struct request_sock *req);
2505 void security_inet_conn_established(struct sock *sk,
2506 struct sk_buff *skb);
2508 #else /* CONFIG_SECURITY_NETWORK */
2509 static inline int security_unix_stream_connect(struct socket *sock,
2510 struct socket *other,
2516 static inline int security_unix_may_send(struct socket *sock,
2517 struct socket *other)
2522 static inline int security_socket_create(int family, int type,
2523 int protocol, int kern)
2528 static inline int security_socket_post_create(struct socket *sock,
2531 int protocol, int kern)
2536 static inline int security_socket_bind(struct socket *sock,
2537 struct sockaddr *address,
2543 static inline int security_socket_connect(struct socket *sock,
2544 struct sockaddr *address,
2550 static inline int security_socket_listen(struct socket *sock, int backlog)
2555 static inline int security_socket_accept(struct socket *sock,
2556 struct socket *newsock)
2561 static inline void security_socket_post_accept(struct socket *sock,
2562 struct socket *newsock)
2566 static inline int security_socket_sendmsg(struct socket *sock,
2567 struct msghdr *msg, int size)
2572 static inline int security_socket_recvmsg(struct socket *sock,
2573 struct msghdr *msg, int size,
2579 static inline int security_socket_getsockname(struct socket *sock)
2584 static inline int security_socket_getpeername(struct socket *sock)
2589 static inline int security_socket_getsockopt(struct socket *sock,
2590 int level, int optname)
2595 static inline int security_socket_setsockopt(struct socket *sock,
2596 int level, int optname)
2601 static inline int security_socket_shutdown(struct socket *sock, int how)
2605 static inline int security_sock_rcv_skb(struct sock *sk,
2606 struct sk_buff *skb)
2611 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2612 int __user *optlen, unsigned len)
2614 return -ENOPROTOOPT;
2617 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
2619 return -ENOPROTOOPT;
2622 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
2627 static inline void security_sk_free(struct sock *sk)
2631 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2635 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
2639 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2643 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
2647 static inline int security_inet_conn_request(struct sock *sk,
2648 struct sk_buff *skb, struct request_sock *req)
2653 static inline void security_inet_csk_clone(struct sock *newsk,
2654 const struct request_sock *req)
2658 static inline void security_inet_conn_established(struct sock *sk,
2659 struct sk_buff *skb)
2662 #endif /* CONFIG_SECURITY_NETWORK */
2664 #ifdef CONFIG_SECURITY_NETWORK_XFRM
2666 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2667 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2668 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2669 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
2670 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2671 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2672 struct xfrm_sec_ctx *polsec, u32 secid);
2673 int security_xfrm_state_delete(struct xfrm_state *x);
2674 void security_xfrm_state_free(struct xfrm_state *x);
2675 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
2676 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2677 struct xfrm_policy *xp, struct flowi *fl);
2678 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2679 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
2681 #else /* CONFIG_SECURITY_NETWORK_XFRM */
2683 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
2688 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
2693 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
2697 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
2702 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2703 struct xfrm_user_sec_ctx *sec_ctx)
2708 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2709 struct xfrm_sec_ctx *polsec, u32 secid)
2714 static inline void security_xfrm_state_free(struct xfrm_state *x)
2718 static inline int security_xfrm_state_delete(struct xfrm_state *x)
2723 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
2728 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2729 struct xfrm_policy *xp, struct flowi *fl)
2734 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
2739 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2743 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
2746 #ifdef CONFIG_SECURITY
2748 int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags);
2749 void security_key_free(struct key *key);
2750 int security_key_permission(key_ref_t key_ref,
2751 struct task_struct *context, key_perm_t perm);
2752 int security_key_getsecurity(struct key *key, char **_buffer);
2756 static inline int security_key_alloc(struct key *key,
2757 struct task_struct *tsk,
2758 unsigned long flags)
2763 static inline void security_key_free(struct key *key)
2767 static inline int security_key_permission(key_ref_t key_ref,
2768 struct task_struct *context,
2774 static inline int security_key_getsecurity(struct key *key, char **_buffer)
2781 #endif /* CONFIG_KEYS */
2784 #ifdef CONFIG_SECURITY
2785 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2786 int security_audit_rule_known(struct audit_krule *krule);
2787 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2788 struct audit_context *actx);
2789 void security_audit_rule_free(void *lsmrule);
2793 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2799 static inline int security_audit_rule_known(struct audit_krule *krule)
2804 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2805 void *lsmrule, struct audit_context *actx)
2810 static inline void security_audit_rule_free(void *lsmrule)
2813 #endif /* CONFIG_SECURITY */
2814 #endif /* CONFIG_AUDIT */
2816 #endif /* ! __LINUX_SECURITY_H */