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;
85 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
86 extern int cap_netlink_recv(struct sk_buff *skb, int cap);
88 extern unsigned long mmap_min_addr;
90 * Values used in the task_security_ops calls
92 /* setuid or setgid, id0 == uid or gid */
93 #define LSM_SETID_ID 1
95 /* setreuid or setregid, id0 == real, id1 == eff */
96 #define LSM_SETID_RE 2
98 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
99 #define LSM_SETID_RES 4
101 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
102 #define LSM_SETID_FS 8
104 /* forward declares to avoid warnings */
107 struct swap_info_struct;
110 /* bprm_apply_creds unsafe reasons */
111 #define LSM_UNSAFE_SHARE 1
112 #define LSM_UNSAFE_PTRACE 2
113 #define LSM_UNSAFE_PTRACE_CAP 4
115 #ifdef CONFIG_SECURITY
117 struct security_mnt_opts {
123 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
125 opts->mnt_opts = NULL;
126 opts->mnt_opts_flags = NULL;
127 opts->num_mnt_opts = 0;
130 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
134 for (i = 0; i < opts->num_mnt_opts; i++)
135 kfree(opts->mnt_opts[i]);
136 kfree(opts->mnt_opts);
137 opts->mnt_opts = NULL;
138 kfree(opts->mnt_opts_flags);
139 opts->mnt_opts_flags = NULL;
140 opts->num_mnt_opts = 0;
144 * struct security_operations - main security structure
146 * Security module identifier.
149 * A string that acts as a unique identifeir for the LSM with max number
150 * of characters = SECURITY_NAME_MAX.
152 * Security hooks for program execution operations.
154 * @bprm_alloc_security:
155 * Allocate and attach a security structure to the @bprm->security field.
156 * The security field is initialized to NULL when the bprm structure is
158 * @bprm contains the linux_binprm structure to be modified.
159 * Return 0 if operation was successful.
160 * @bprm_free_security:
161 * @bprm contains the linux_binprm structure to be modified.
162 * Deallocate and clear the @bprm->security field.
164 * Compute and set the security attributes of a process being transformed
165 * by an execve operation based on the old attributes (current->security)
166 * and the information saved in @bprm->security by the set_security hook.
167 * Since this hook function (and its caller) are void, this hook can not
168 * return an error. However, it can leave the security attributes of the
169 * process unchanged if an access failure occurs at this point.
170 * bprm_apply_creds is called under task_lock. @unsafe indicates various
171 * reasons why it may be unsafe to change security state.
172 * @bprm contains the linux_binprm structure.
173 * @bprm_post_apply_creds:
174 * Runs after bprm_apply_creds with the task_lock dropped, so that
175 * functions which cannot be called safely under the task_lock can
176 * be used. This hook is a good place to perform state changes on
177 * the process such as closing open file descriptors to which access
178 * is no longer granted if the attributes were changed.
179 * Note that a security module might need to save state between
180 * bprm_apply_creds and bprm_post_apply_creds to store the decision
181 * on whether the process may proceed.
182 * @bprm contains the linux_binprm structure.
183 * @bprm_set_security:
184 * Save security information in the bprm->security field, typically based
185 * on information about the bprm->file, for later use by the apply_creds
186 * hook. This hook may also optionally check permissions (e.g. for
187 * transitions between security domains).
188 * This hook may be called multiple times during a single execve, e.g. for
189 * interpreters. The hook can tell whether it has already been called by
190 * checking to see if @bprm->security is non-NULL. If so, then the hook
191 * may decide either to retain the security information saved earlier or
193 * @bprm contains the linux_binprm structure.
194 * Return 0 if the hook is successful and permission is granted.
195 * @bprm_check_security:
196 * This hook mediates the point when a search for a binary handler will
197 * begin. It allows a check the @bprm->security value which is set in
198 * the preceding set_security call. The primary difference from
199 * set_security is that the argv list and envp list are reliably
200 * available in @bprm. This hook may be called multiple times
201 * during a single execve; and in each pass set_security is called
203 * @bprm contains the linux_binprm structure.
204 * Return 0 if the hook is successful and permission is granted.
206 * Return a boolean value (0 or 1) indicating whether a "secure exec"
207 * is required. The flag is passed in the auxiliary table
208 * on the initial stack to the ELF interpreter to indicate whether libc
209 * should enable secure mode.
210 * @bprm contains the linux_binprm structure.
212 * Security hooks for filesystem operations.
214 * @sb_alloc_security:
215 * Allocate and attach a security structure to the sb->s_security field.
216 * The s_security field is initialized to NULL when the structure is
218 * @sb contains the super_block structure to be modified.
219 * Return 0 if operation was successful.
221 * Deallocate and clear the sb->s_security field.
222 * @sb contains the super_block structure to be modified.
224 * Check permission before obtaining filesystem statistics for the @mnt
226 * @dentry is a handle on the superblock for the filesystem.
227 * Return 0 if permission is granted.
229 * Check permission before an object specified by @dev_name is mounted on
230 * the mount point named by @nd. For an ordinary mount, @dev_name
231 * identifies a device if the file system type requires a device. For a
232 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
233 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
234 * pathname of the object being mounted.
235 * @dev_name contains the name for object being mounted.
236 * @path contains the path for mount point object.
237 * @type contains the filesystem type.
238 * @flags contains the mount flags.
239 * @data contains the filesystem-specific data.
240 * Return 0 if permission is granted.
242 * Allow mount option data to be copied prior to parsing by the filesystem,
243 * so that the security module can extract security-specific mount
244 * options cleanly (a filesystem may modify the data e.g. with strsep()).
245 * This also allows the original mount data to be stripped of security-
246 * specific options to avoid having to make filesystems aware of them.
247 * @type the type of filesystem being mounted.
248 * @orig the original mount data copied from userspace.
249 * @copy copied data which will be passed to the security module.
250 * Returns 0 if the copy was successful.
252 * Check permission before the device with superblock @mnt->sb is mounted
253 * on the mount point named by @nd.
254 * @mnt contains the vfsmount for device being mounted.
255 * @path contains the path for the mount point.
256 * Return 0 if permission is granted.
258 * Check permission before the @mnt file system is unmounted.
259 * @mnt contains the mounted file system.
260 * @flags contains the unmount flags, e.g. MNT_FORCE.
261 * Return 0 if permission is granted.
263 * Close any files in the @mnt mounted filesystem that are held open by
264 * the security module. This hook is called during an umount operation
265 * prior to checking whether the filesystem is still busy.
266 * @mnt contains the mounted filesystem.
268 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
269 * any files that were closed by umount_close. This hook is called during
270 * an umount operation if the umount fails after a call to the
272 * @mnt contains the mounted filesystem.
274 * Update the security module's state when a filesystem is remounted.
275 * This hook is only called if the remount was successful.
276 * @mnt contains the mounted file system.
277 * @flags contains the new filesystem flags.
278 * @data contains the filesystem-specific data.
280 * Update the security module's state when a filesystem is mounted.
281 * This hook is called any time a mount is successfully grafetd to
283 * @mnt contains the mounted filesystem.
284 * @mountpoint contains the path for the mount point.
286 * Check permission before pivoting the root filesystem.
287 * @old_path contains the path for the new location of the current root (put_old).
288 * @new_path contains the path for the new root (new_root).
289 * Return 0 if permission is granted.
290 * @sb_post_pivotroot:
291 * Update module state after a successful pivot.
292 * @old_path contains the path for the old root.
293 * @new_path contains the path for the new root.
295 * Get the security relevant mount options used for a superblock
296 * @sb the superblock to get security mount options from
297 * @opts binary data structure containing all lsm mount data
299 * Set the security relevant mount options used for a superblock
300 * @sb the superblock to set security mount options for
301 * @opts binary data structure containing all lsm mount data
302 * @sb_clone_mnt_opts:
303 * Copy all security options from a given superblock to another
304 * @oldsb old superblock which contain information to clone
305 * @newsb new superblock which needs filled in
306 * @sb_parse_opts_str:
307 * Parse a string of security data filling in the opts structure
308 * @options string containing all mount options known by the LSM
309 * @opts binary data structure usable by the LSM
311 * Security hooks for inode operations.
313 * @inode_alloc_security:
314 * Allocate and attach a security structure to @inode->i_security. The
315 * i_security field is initialized to NULL when the inode structure is
317 * @inode contains the inode structure.
318 * Return 0 if operation was successful.
319 * @inode_free_security:
320 * @inode contains the inode structure.
321 * Deallocate the inode security structure and set @inode->i_security to
323 * @inode_init_security:
324 * Obtain the security attribute name suffix and value to set on a newly
325 * created inode and set up the incore security field for the new inode.
326 * This hook is called by the fs code as part of the inode creation
327 * transaction and provides for atomic labeling of the inode, unlike
328 * the post_create/mkdir/... hooks called by the VFS. The hook function
329 * is expected to allocate the name and value via kmalloc, with the caller
330 * being responsible for calling kfree after using them.
331 * If the security module does not use security attributes or does
332 * not wish to put a security attribute on this particular inode,
333 * then it should return -EOPNOTSUPP to skip this processing.
334 * @inode contains the inode structure of the newly created inode.
335 * @dir contains the inode structure of the parent directory.
336 * @name will be set to the allocated name suffix (e.g. selinux).
337 * @value will be set to the allocated attribute value.
338 * @len will be set to the length of the value.
339 * Returns 0 if @name and @value have been successfully set,
340 * -EOPNOTSUPP if no security attribute is needed, or
341 * -ENOMEM on memory allocation failure.
343 * Check permission to create a regular file.
344 * @dir contains inode structure of the parent of the new file.
345 * @dentry contains the dentry structure for the file to be created.
346 * @mode contains the file mode of the file to be created.
347 * Return 0 if permission is granted.
349 * Check permission before creating a new hard link to a file.
350 * @old_dentry contains the dentry structure for an existing link to the file.
351 * @dir contains the inode structure of the parent directory of the new link.
352 * @new_dentry contains the dentry structure for the new link.
353 * Return 0 if permission is granted.
355 * Check the permission to remove a hard link to a file.
356 * @dir contains the inode structure of parent directory of the file.
357 * @dentry contains the dentry structure for file to be unlinked.
358 * Return 0 if permission is granted.
360 * Check the permission to create a symbolic link to a file.
361 * @dir contains the inode structure of parent directory of the symbolic link.
362 * @dentry contains the dentry structure of the symbolic link.
363 * @old_name contains the pathname of file.
364 * Return 0 if permission is granted.
366 * Check permissions to create a new directory in the existing directory
367 * associated with inode strcture @dir.
368 * @dir containst the inode structure of parent of the directory to be created.
369 * @dentry contains the dentry structure of new directory.
370 * @mode contains the mode of new directory.
371 * Return 0 if permission is granted.
373 * Check the permission to remove a directory.
374 * @dir contains the inode structure of parent of the directory to be removed.
375 * @dentry contains the dentry structure of directory to be removed.
376 * Return 0 if permission is granted.
378 * Check permissions when creating a special file (or a socket or a fifo
379 * file created via the mknod system call). Note that if mknod operation
380 * is being done for a regular file, then the create hook will be called
382 * @dir contains the inode structure of parent of the new file.
383 * @dentry contains the dentry structure of the new file.
384 * @mode contains the mode of the new file.
385 * @dev contains the device number.
386 * Return 0 if permission is granted.
388 * Check for permission to rename a file or directory.
389 * @old_dir contains the inode structure for parent of the old link.
390 * @old_dentry contains the dentry structure of the old link.
391 * @new_dir contains the inode structure for parent of the new link.
392 * @new_dentry contains the dentry structure of the new link.
393 * Return 0 if permission is granted.
395 * Check the permission to read the symbolic link.
396 * @dentry contains the dentry structure for the file link.
397 * Return 0 if permission is granted.
398 * @inode_follow_link:
399 * Check permission to follow a symbolic link when looking up a pathname.
400 * @dentry contains the dentry structure for the link.
401 * @nd contains the nameidata structure for the parent directory.
402 * Return 0 if permission is granted.
404 * Check permission before accessing an inode. This hook is called by the
405 * existing Linux permission function, so a security module can use it to
406 * provide additional checking for existing Linux permission checks.
407 * Notice that this hook is called when a file is opened (as well as many
408 * other operations), whereas the file_security_ops permission hook is
409 * called when the actual read/write operations are performed.
410 * @inode contains the inode structure to check.
411 * @mask contains the permission mask.
412 * @nd contains the nameidata (may be NULL).
413 * Return 0 if permission is granted.
415 * Check permission before setting file attributes. Note that the kernel
416 * call to notify_change is performed from several locations, whenever
417 * file attributes change (such as when a file is truncated, chown/chmod
418 * operations, transferring disk quotas, etc).
419 * @dentry contains the dentry structure for the file.
420 * @attr is the iattr structure containing the new file attributes.
421 * Return 0 if permission is granted.
423 * Check permission before obtaining file attributes.
424 * @mnt is the vfsmount where the dentry was looked up
425 * @dentry contains the dentry structure for the file.
426 * Return 0 if permission is granted.
428 * @inode contains the inode structure for deleted inode.
429 * This hook is called when a deleted inode is released (i.e. an inode
430 * with no hard links has its use count drop to zero). A security module
431 * can use this hook to release any persistent label associated with the
434 * Check permission before setting the extended attributes
435 * @value identified by @name for @dentry.
436 * Return 0 if permission is granted.
437 * @inode_post_setxattr:
438 * Update inode security field after successful setxattr operation.
439 * @value identified by @name for @dentry.
441 * Check permission before obtaining the extended attributes
442 * identified by @name for @dentry.
443 * Return 0 if permission is granted.
445 * Check permission before obtaining the list of extended attribute
447 * Return 0 if permission is granted.
448 * @inode_removexattr:
449 * Check permission before removing the extended attribute
450 * identified by @name for @dentry.
451 * Return 0 if permission is granted.
452 * @inode_getsecurity:
453 * Retrieve a copy of the extended attribute representation of the
454 * security label associated with @name for @inode via @buffer. Note that
455 * @name is the remainder of the attribute name after the security prefix
456 * has been removed. @alloc is used to specify of the call should return a
457 * value via the buffer or just the value length Return size of buffer on
459 * @inode_setsecurity:
460 * Set the security label associated with @name for @inode from the
461 * extended attribute value @value. @size indicates the size of the
462 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
463 * Note that @name is the remainder of the attribute name after the
464 * security. prefix has been removed.
465 * Return 0 on success.
466 * @inode_listsecurity:
467 * Copy the extended attribute names for the security labels
468 * associated with @inode into @buffer. The maximum size of @buffer
469 * is specified by @buffer_size. @buffer may be NULL to request
470 * the size of the buffer required.
471 * Returns number of bytes used/required on success.
472 * @inode_need_killpriv:
473 * Called when an inode has been changed.
474 * @dentry is the dentry being changed.
475 * Return <0 on error to abort the inode change operation.
476 * Return 0 if inode_killpriv does not need to be called.
477 * Return >0 if inode_killpriv does need to be called.
479 * The setuid bit is being removed. Remove similar security labels.
480 * Called with the dentry->d_inode->i_mutex held.
481 * @dentry is the dentry being changed.
482 * Return 0 on success. If error is returned, then the operation
483 * causing setuid bit removal is failed.
485 * Get the secid associated with the node.
486 * @inode contains a pointer to the inode.
487 * @secid contains a pointer to the location where result will be saved.
488 * In case of failure, @secid will be set to zero.
490 * Security hooks for file operations
493 * Check file permissions before accessing an open file. This hook is
494 * called by various operations that read or write files. A security
495 * module can use this hook to perform additional checking on these
496 * operations, e.g. to revalidate permissions on use to support privilege
497 * bracketing or policy changes. Notice that this hook is used when the
498 * actual read/write operations are performed, whereas the
499 * inode_security_ops hook is called when a file is opened (as well as
500 * many other operations).
501 * Caveat: Although this hook can be used to revalidate permissions for
502 * various system call operations that read or write files, it does not
503 * address the revalidation of permissions for memory-mapped files.
504 * Security modules must handle this separately if they need such
506 * @file contains the file structure being accessed.
507 * @mask contains the requested permissions.
508 * Return 0 if permission is granted.
509 * @file_alloc_security:
510 * Allocate and attach a security structure to the file->f_security field.
511 * The security field is initialized to NULL when the structure is first
513 * @file contains the file structure to secure.
514 * Return 0 if the hook is successful and permission is granted.
515 * @file_free_security:
516 * Deallocate and free any security structures stored in file->f_security.
517 * @file contains the file structure being modified.
519 * @file contains the file structure.
520 * @cmd contains the operation to perform.
521 * @arg contains the operational arguments.
522 * Check permission for an ioctl operation on @file. Note that @arg can
523 * sometimes represents a user space pointer; in other cases, it may be a
524 * simple integer value. When @arg represents a user space pointer, it
525 * should never be used by the security module.
526 * Return 0 if permission is granted.
528 * Check permissions for a mmap operation. The @file may be NULL, e.g.
529 * if mapping anonymous memory.
530 * @file contains the file structure for file to map (may be NULL).
531 * @reqprot contains the protection requested by the application.
532 * @prot contains the protection that will be applied by the kernel.
533 * @flags contains the operational flags.
534 * Return 0 if permission is granted.
536 * Check permissions before changing memory access permissions.
537 * @vma contains the memory region to modify.
538 * @reqprot contains the protection requested by the application.
539 * @prot contains the protection that will be applied by the kernel.
540 * Return 0 if permission is granted.
542 * Check permission before performing file locking operations.
543 * Note: this hook mediates both flock and fcntl style locks.
544 * @file contains the file structure.
545 * @cmd contains the posix-translated lock operation to perform
546 * (e.g. F_RDLCK, F_WRLCK).
547 * Return 0 if permission is granted.
549 * Check permission before allowing the file operation specified by @cmd
550 * from being performed on the file @file. Note that @arg can sometimes
551 * represents a user space pointer; in other cases, it may be a simple
552 * integer value. When @arg represents a user space pointer, it should
553 * never be used by the security module.
554 * @file contains the file structure.
555 * @cmd contains the operation to be performed.
556 * @arg contains the operational arguments.
557 * Return 0 if permission is granted.
559 * Save owner security information (typically from current->security) in
560 * file->f_security for later use by the send_sigiotask hook.
561 * @file contains the file structure to update.
562 * Return 0 on success.
563 * @file_send_sigiotask:
564 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
565 * process @tsk. Note that this hook is sometimes called from interrupt.
566 * Note that the fown_struct, @fown, is never outside the context of a
567 * struct file, so the file structure (and associated security information)
568 * can always be obtained:
569 * container_of(fown, struct file, f_owner)
570 * @tsk contains the structure of task receiving signal.
571 * @fown contains the file owner information.
572 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
573 * Return 0 if permission is granted.
575 * This hook allows security modules to control the ability of a process
576 * to receive an open file descriptor via socket IPC.
577 * @file contains the file structure being received.
578 * Return 0 if permission is granted.
580 * Security hook for dentry
583 * Save open-time permission checking state for later use upon
584 * file_permission, and recheck access if anything has changed
585 * since inode_permission.
587 * Security hooks for task operations.
590 * Check permission before creating a child process. See the clone(2)
591 * manual page for definitions of the @clone_flags.
592 * @clone_flags contains the flags indicating what should be shared.
593 * Return 0 if permission is granted.
594 * @task_alloc_security:
595 * @p contains the task_struct for child process.
596 * Allocate and attach a security structure to the p->security field. The
597 * security field is initialized to NULL when the task structure is
599 * Return 0 if operation was successful.
600 * @task_free_security:
601 * @p contains the task_struct for process.
602 * Deallocate and clear the p->security field.
604 * Check permission before setting one or more of the user identity
605 * attributes of the current process. The @flags parameter indicates
606 * which of the set*uid system calls invoked this hook and how to
607 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
608 * definitions at the beginning of this file for the @flags values and
610 * @id0 contains a uid.
611 * @id1 contains a uid.
612 * @id2 contains a uid.
613 * @flags contains one of the LSM_SETID_* values.
614 * Return 0 if permission is granted.
616 * Update the module's state after setting one or more of the user
617 * identity attributes of the current process. The @flags parameter
618 * indicates which of the set*uid system calls invoked this hook. If
619 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
620 * parameters are not used.
621 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
622 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
623 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
624 * @flags contains one of the LSM_SETID_* values.
625 * Return 0 on success.
627 * Check permission before setting one or more of the group identity
628 * attributes of the current process. The @flags parameter indicates
629 * which of the set*gid system calls invoked this hook and how to
630 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
631 * definitions at the beginning of this file for the @flags values and
633 * @id0 contains a gid.
634 * @id1 contains a gid.
635 * @id2 contains a gid.
636 * @flags contains one of the LSM_SETID_* values.
637 * Return 0 if permission is granted.
639 * Check permission before setting the process group identifier of the
640 * process @p to @pgid.
641 * @p contains the task_struct for process being modified.
642 * @pgid contains the new pgid.
643 * Return 0 if permission is granted.
645 * Check permission before getting the process group identifier of the
647 * @p contains the task_struct for the process.
648 * Return 0 if permission is granted.
650 * Check permission before getting the session identifier of the process
652 * @p contains the task_struct for the process.
653 * Return 0 if permission is granted.
655 * Retrieve the security identifier of the process @p.
656 * @p contains the task_struct for the process and place is into @secid.
657 * In case of failure, @secid will be set to zero.
660 * Check permission before setting the supplementary group set of the
662 * @group_info contains the new group information.
663 * Return 0 if permission is granted.
665 * Check permission before setting the nice value of @p to @nice.
666 * @p contains the task_struct of process.
667 * @nice contains the new nice value.
668 * Return 0 if permission is granted.
670 * Check permission before setting the ioprio value of @p to @ioprio.
671 * @p contains the task_struct of process.
672 * @ioprio contains the new ioprio value
673 * Return 0 if permission is granted.
675 * Check permission before getting the ioprio value of @p.
676 * @p contains the task_struct of process.
677 * Return 0 if permission is granted.
679 * Check permission before setting the resource limits of the current
680 * process for @resource to @new_rlim. The old resource limit values can
681 * be examined by dereferencing (current->signal->rlim + resource).
682 * @resource contains the resource whose limit is being set.
683 * @new_rlim contains the new limits for @resource.
684 * Return 0 if permission is granted.
685 * @task_setscheduler:
686 * Check permission before setting scheduling policy and/or parameters of
687 * process @p based on @policy and @lp.
688 * @p contains the task_struct for process.
689 * @policy contains the scheduling policy.
690 * @lp contains the scheduling parameters.
691 * Return 0 if permission is granted.
692 * @task_getscheduler:
693 * Check permission before obtaining scheduling information for process
695 * @p contains the task_struct for process.
696 * Return 0 if permission is granted.
698 * Check permission before moving memory owned by process @p.
699 * @p contains the task_struct for process.
700 * Return 0 if permission is granted.
702 * Check permission before sending signal @sig to @p. @info can be NULL,
703 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
704 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
705 * from the kernel and should typically be permitted.
706 * SIGIO signals are handled separately by the send_sigiotask hook in
708 * @p contains the task_struct for process.
709 * @info contains the signal information.
710 * @sig contains the signal value.
711 * @secid contains the sid of the process where the signal originated
712 * Return 0 if permission is granted.
714 * Check permission before allowing a process to reap a child process @p
715 * and collect its status information.
716 * @p contains the task_struct for process.
717 * Return 0 if permission is granted.
719 * Check permission before performing a process control operation on the
721 * @option contains the operation.
722 * @arg2 contains a argument.
723 * @arg3 contains a argument.
724 * @arg4 contains a argument.
725 * @arg5 contains a argument.
726 * @rc_p contains a pointer to communicate back the forced return code
727 * Return 0 if permission is granted, and non-zero if the security module
728 * has taken responsibility (setting *rc_p) for the prctl call.
729 * @task_reparent_to_init:
730 * Set the security attributes in @p->security for a kernel thread that
731 * is being reparented to the init task.
732 * @p contains the task_struct for the kernel thread.
734 * Set the security attributes for an inode based on an associated task's
735 * security attributes, e.g. for /proc/pid inodes.
736 * @p contains the task_struct for the task.
737 * @inode contains the inode structure for the inode.
739 * Security hooks for Netlink messaging.
742 * Save security information for a netlink message so that permission
743 * checking can be performed when the message is processed. The security
744 * information can be saved using the eff_cap field of the
745 * netlink_skb_parms structure. Also may be used to provide fine
746 * grained control over message transmission.
747 * @sk associated sock of task sending the message.,
748 * @skb contains the sk_buff structure for the netlink message.
749 * Return 0 if the information was successfully saved and message
750 * is allowed to be transmitted.
752 * Check permission before processing the received netlink message in
754 * @skb contains the sk_buff structure for the netlink message.
755 * @cap indicates the capability required
756 * Return 0 if permission is granted.
758 * Security hooks for Unix domain networking.
760 * @unix_stream_connect:
761 * Check permissions before establishing a Unix domain stream connection
762 * between @sock and @other.
763 * @sock contains the socket structure.
764 * @other contains the peer socket structure.
765 * Return 0 if permission is granted.
767 * Check permissions before connecting or sending datagrams from @sock to
769 * @sock contains the socket structure.
770 * @sock contains the peer socket structure.
771 * Return 0 if permission is granted.
773 * The @unix_stream_connect and @unix_may_send hooks were necessary because
774 * Linux provides an alternative to the conventional file name space for Unix
775 * domain sockets. Whereas binding and connecting to sockets in the file name
776 * space is mediated by the typical file permissions (and caught by the mknod
777 * and permission hooks in inode_security_ops), binding and connecting to
778 * sockets in the abstract name space is completely unmediated. Sufficient
779 * control of Unix domain sockets in the abstract name space isn't possible
780 * using only the socket layer hooks, since we need to know the actual target
781 * socket, which is not looked up until we are inside the af_unix code.
783 * Security hooks for socket operations.
786 * Check permissions prior to creating a new socket.
787 * @family contains the requested protocol family.
788 * @type contains the requested communications type.
789 * @protocol contains the requested protocol.
790 * @kern set to 1 if a kernel socket.
791 * Return 0 if permission is granted.
792 * @socket_post_create:
793 * This hook allows a module to update or allocate a per-socket security
794 * structure. Note that the security field was not added directly to the
795 * socket structure, but rather, the socket security information is stored
796 * in the associated inode. Typically, the inode alloc_security hook will
797 * allocate and and attach security information to
798 * sock->inode->i_security. This hook may be used to update the
799 * sock->inode->i_security field with additional information that wasn't
800 * available when the inode was allocated.
801 * @sock contains the newly created socket structure.
802 * @family contains the requested protocol family.
803 * @type contains the requested communications type.
804 * @protocol contains the requested protocol.
805 * @kern set to 1 if a kernel socket.
807 * Check permission before socket protocol layer bind operation is
808 * performed and the socket @sock is bound to the address specified in the
809 * @address parameter.
810 * @sock contains the socket structure.
811 * @address contains the address to bind to.
812 * @addrlen contains the length of address.
813 * Return 0 if permission is granted.
815 * Check permission before socket protocol layer connect operation
816 * attempts to connect socket @sock to a remote address, @address.
817 * @sock contains the socket structure.
818 * @address contains the address of remote endpoint.
819 * @addrlen contains the length of address.
820 * Return 0 if permission is granted.
822 * Check permission before socket protocol layer listen operation.
823 * @sock contains the socket structure.
824 * @backlog contains the maximum length for the pending connection queue.
825 * Return 0 if permission is granted.
827 * Check permission before accepting a new connection. Note that the new
828 * socket, @newsock, has been created and some information copied to it,
829 * but the accept operation has not actually been performed.
830 * @sock contains the listening socket structure.
831 * @newsock contains the newly created server socket for connection.
832 * Return 0 if permission is granted.
833 * @socket_post_accept:
834 * This hook allows a security module to copy security
835 * information into the newly created socket's inode.
836 * @sock contains the listening socket structure.
837 * @newsock contains the newly created server socket for connection.
839 * Check permission before transmitting a message to another socket.
840 * @sock contains the socket structure.
841 * @msg contains the message to be transmitted.
842 * @size contains the size of message.
843 * Return 0 if permission is granted.
845 * Check permission before receiving a message from a socket.
846 * @sock contains the socket structure.
847 * @msg contains the message structure.
848 * @size contains the size of message structure.
849 * @flags contains the operational flags.
850 * Return 0 if permission is granted.
851 * @socket_getsockname:
852 * Check permission before the local address (name) of the socket object
853 * @sock is retrieved.
854 * @sock contains the socket structure.
855 * Return 0 if permission is granted.
856 * @socket_getpeername:
857 * Check permission before the remote address (name) of a socket object
858 * @sock is retrieved.
859 * @sock contains the socket structure.
860 * Return 0 if permission is granted.
861 * @socket_getsockopt:
862 * Check permissions before retrieving the options associated with socket
864 * @sock contains the socket structure.
865 * @level contains the protocol level to retrieve option from.
866 * @optname contains the name of option to retrieve.
867 * Return 0 if permission is granted.
868 * @socket_setsockopt:
869 * Check permissions before setting the options associated with socket
871 * @sock contains the socket structure.
872 * @level contains the protocol level to set options for.
873 * @optname contains the name of the option to set.
874 * Return 0 if permission is granted.
876 * Checks permission before all or part of a connection on the socket
877 * @sock is shut down.
878 * @sock contains the socket structure.
879 * @how contains the flag indicating how future sends and receives are handled.
880 * Return 0 if permission is granted.
881 * @socket_sock_rcv_skb:
882 * Check permissions on incoming network packets. This hook is distinct
883 * from Netfilter's IP input hooks since it is the first time that the
884 * incoming sk_buff @skb has been associated with a particular socket, @sk.
885 * @sk contains the sock (not socket) associated with the incoming sk_buff.
886 * @skb contains the incoming network data.
887 * @socket_getpeersec_stream:
888 * This hook allows the security module to provide peer socket security
889 * state for unix or connected tcp sockets to userspace via getsockopt
890 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
891 * socket is associated with an ipsec SA.
892 * @sock is the local socket.
893 * @optval userspace memory where the security state is to be copied.
894 * @optlen userspace int where the module should copy the actual length
895 * of the security state.
896 * @len as input is the maximum length to copy to userspace provided
898 * Return 0 if all is well, otherwise, typical getsockopt return
900 * @socket_getpeersec_dgram:
901 * This hook allows the security module to provide peer socket security
902 * state for udp sockets on a per-packet basis to userspace via
903 * getsockopt SO_GETPEERSEC. The application must first have indicated
904 * the IP_PASSSEC option via getsockopt. It can then retrieve the
905 * security state returned by this hook for a packet via the SCM_SECURITY
906 * ancillary message type.
907 * @skb is the skbuff for the packet being queried
908 * @secdata is a pointer to a buffer in which to copy the security data
909 * @seclen is the maximum length for @secdata
910 * Return 0 on success, error on failure.
911 * @sk_alloc_security:
912 * Allocate and attach a security structure to the sk->sk_security field,
913 * which is used to copy security attributes between local stream sockets.
915 * Deallocate security structure.
916 * @sk_clone_security:
917 * Clone/copy security structure.
919 * Retrieve the LSM-specific secid for the sock to enable caching of network
922 * Sets the socket's isec sid to the sock's sid.
923 * @inet_conn_request:
924 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
926 * Sets the new child socket's sid to the openreq sid.
927 * @inet_conn_established:
928 * Sets the connection's peersid to the secmark on skb.
929 * @req_classify_flow:
930 * Sets the flow's sid to the openreq sid.
932 * Security hooks for XFRM operations.
934 * @xfrm_policy_alloc_security:
935 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
936 * Database used by the XFRM system.
937 * @sec_ctx contains the security context information being provided by
938 * the user-level policy update program (e.g., setkey).
939 * Allocate a security structure to the xp->security field; the security
940 * field is initialized to NULL when the xfrm_policy is allocated.
941 * Return 0 if operation was successful (memory to allocate, legal context)
942 * @xfrm_policy_clone_security:
943 * @old_ctx contains an existing xfrm_sec_ctx.
944 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
945 * Allocate a security structure in new_ctxp that contains the
946 * information from the old_ctx structure.
947 * Return 0 if operation was successful (memory to allocate).
948 * @xfrm_policy_free_security:
949 * @ctx contains the xfrm_sec_ctx
950 * Deallocate xp->security.
951 * @xfrm_policy_delete_security:
952 * @ctx contains the xfrm_sec_ctx.
953 * Authorize deletion of xp->security.
954 * @xfrm_state_alloc_security:
955 * @x contains the xfrm_state being added to the Security Association
956 * Database by the XFRM system.
957 * @sec_ctx contains the security context information being provided by
958 * the user-level SA generation program (e.g., setkey or racoon).
959 * @secid contains the secid from which to take the mls portion of the context.
960 * Allocate a security structure to the x->security field; the security
961 * field is initialized to NULL when the xfrm_state is allocated. Set the
962 * context to correspond to either sec_ctx or polsec, with the mls portion
963 * taken from secid in the latter case.
964 * Return 0 if operation was successful (memory to allocate, legal context).
965 * @xfrm_state_free_security:
966 * @x contains the xfrm_state.
967 * Deallocate x->security.
968 * @xfrm_state_delete_security:
969 * @x contains the xfrm_state.
970 * Authorize deletion of x->security.
971 * @xfrm_policy_lookup:
972 * @ctx contains the xfrm_sec_ctx for which the access control is being
974 * @fl_secid contains the flow security label that is used to authorize
975 * access to the policy xp.
976 * @dir contains the direction of the flow (input or output).
977 * Check permission when a flow selects a xfrm_policy for processing
978 * XFRMs on a packet. The hook is called when selecting either a
979 * per-socket policy or a generic xfrm policy.
980 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
982 * @xfrm_state_pol_flow_match:
983 * @x contains the state to match.
984 * @xp contains the policy to check for a match.
985 * @fl contains the flow to check for a match.
986 * Return 1 if there is a match.
987 * @xfrm_decode_session:
988 * @skb points to skb to decode.
989 * @secid points to the flow key secid to set.
990 * @ckall says if all xfrms used should be checked for same secid.
991 * Return 0 if ckall is zero or all xfrms used have the same secid.
993 * Security hooks affecting all Key Management operations
996 * Permit allocation of a key and assign security data. Note that key does
997 * not have a serial number assigned at this point.
998 * @key points to the key.
999 * @flags is the allocation flags
1000 * Return 0 if permission is granted, -ve error otherwise.
1002 * Notification of destruction; free security data.
1003 * @key points to the key.
1006 * See whether a specific operational right is granted to a process on a
1008 * @key_ref refers to the key (key pointer + possession attribute bit).
1009 * @context points to the process to provide the context against which to
1010 * evaluate the security data on the key.
1011 * @perm describes the combination of permissions required of this key.
1012 * Return 1 if permission granted, 0 if permission denied and -ve it the
1013 * normal permissions model should be effected.
1015 * Get a textual representation of the security context attached to a key
1016 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1017 * allocates the storage for the NUL-terminated string and the caller
1019 * @key points to the key to be queried.
1020 * @_buffer points to a pointer that should be set to point to the
1021 * resulting string (if no label or an error occurs).
1022 * Return the length of the string (including terminating NUL) or -ve if
1024 * May also return 0 (and a NULL buffer pointer) if there is no label.
1026 * Security hooks affecting all System V IPC operations.
1029 * Check permissions for access to IPC
1030 * @ipcp contains the kernel IPC permission structure
1031 * @flag contains the desired (requested) permission set
1032 * Return 0 if permission is granted.
1034 * Get the secid associated with the ipc object.
1035 * @ipcp contains the kernel IPC permission structure.
1036 * @secid contains a pointer to the location where result will be saved.
1037 * In case of failure, @secid will be set to zero.
1039 * Security hooks for individual messages held in System V IPC message queues
1040 * @msg_msg_alloc_security:
1041 * Allocate and attach a security structure to the msg->security field.
1042 * The security field is initialized to NULL when the structure is first
1044 * @msg contains the message structure to be modified.
1045 * Return 0 if operation was successful and permission is granted.
1046 * @msg_msg_free_security:
1047 * Deallocate the security structure for this message.
1048 * @msg contains the message structure to be modified.
1050 * Security hooks for System V IPC Message Queues
1052 * @msg_queue_alloc_security:
1053 * Allocate and attach a security structure to the
1054 * msq->q_perm.security field. The security field is initialized to
1055 * NULL when the structure is first created.
1056 * @msq contains the message queue structure to be modified.
1057 * Return 0 if operation was successful and permission is granted.
1058 * @msg_queue_free_security:
1059 * Deallocate security structure for this message queue.
1060 * @msq contains the message queue structure to be modified.
1061 * @msg_queue_associate:
1062 * Check permission when a message queue is requested through the
1063 * msgget system call. This hook is only called when returning the
1064 * message queue identifier for an existing message queue, not when a
1065 * new message queue is created.
1066 * @msq contains the message queue to act upon.
1067 * @msqflg contains the operation control flags.
1068 * Return 0 if permission is granted.
1069 * @msg_queue_msgctl:
1070 * Check permission when a message control operation specified by @cmd
1071 * is to be performed on the message queue @msq.
1072 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1073 * @msq contains the message queue to act upon. May be NULL.
1074 * @cmd contains the operation to be performed.
1075 * Return 0 if permission is granted.
1076 * @msg_queue_msgsnd:
1077 * Check permission before a message, @msg, is enqueued on the message
1079 * @msq contains the message queue to send message to.
1080 * @msg contains the message to be enqueued.
1081 * @msqflg contains operational flags.
1082 * Return 0 if permission is granted.
1083 * @msg_queue_msgrcv:
1084 * Check permission before a message, @msg, is removed from the message
1085 * queue, @msq. The @target task structure contains a pointer to the
1086 * process that will be receiving the message (not equal to the current
1087 * process when inline receives are being performed).
1088 * @msq contains the message queue to retrieve message from.
1089 * @msg contains the message destination.
1090 * @target contains the task structure for recipient process.
1091 * @type contains the type of message requested.
1092 * @mode contains the operational flags.
1093 * Return 0 if permission is granted.
1095 * Security hooks for System V Shared Memory Segments
1097 * @shm_alloc_security:
1098 * Allocate and attach a security structure to the shp->shm_perm.security
1099 * field. The security field is initialized to NULL when the structure is
1101 * @shp contains the shared memory structure to be modified.
1102 * Return 0 if operation was successful and permission is granted.
1103 * @shm_free_security:
1104 * Deallocate the security struct for this memory segment.
1105 * @shp contains the shared memory structure to be modified.
1107 * Check permission when a shared memory region is requested through the
1108 * shmget system call. This hook is only called when returning the shared
1109 * memory region identifier for an existing region, not when a new shared
1110 * memory region is created.
1111 * @shp contains the shared memory structure to be modified.
1112 * @shmflg contains the operation control flags.
1113 * Return 0 if permission is granted.
1115 * Check permission when a shared memory control operation specified by
1116 * @cmd is to be performed on the shared memory region @shp.
1117 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1118 * @shp contains shared memory structure to be modified.
1119 * @cmd contains the operation to be performed.
1120 * Return 0 if permission is granted.
1122 * Check permissions prior to allowing the shmat system call to attach the
1123 * shared memory segment @shp to the data segment of the calling process.
1124 * The attaching address is specified by @shmaddr.
1125 * @shp contains the shared memory structure to be modified.
1126 * @shmaddr contains the address to attach memory region to.
1127 * @shmflg contains the operational flags.
1128 * Return 0 if permission is granted.
1130 * Security hooks for System V Semaphores
1132 * @sem_alloc_security:
1133 * Allocate and attach a security structure to the sma->sem_perm.security
1134 * field. The security field is initialized to NULL when the structure is
1136 * @sma contains the semaphore structure
1137 * Return 0 if operation was successful and permission is granted.
1138 * @sem_free_security:
1139 * deallocate security struct for this semaphore
1140 * @sma contains the semaphore structure.
1142 * Check permission when a semaphore is requested through the semget
1143 * system call. This hook is only called when returning the semaphore
1144 * identifier for an existing semaphore, not when a new one must be
1146 * @sma contains the semaphore structure.
1147 * @semflg contains the operation control flags.
1148 * Return 0 if permission is granted.
1150 * Check permission when a semaphore operation specified by @cmd is to be
1151 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
1152 * IPC_INFO or SEM_INFO.
1153 * @sma contains the semaphore structure. May be NULL.
1154 * @cmd contains the operation to be performed.
1155 * Return 0 if permission is granted.
1157 * Check permissions before performing operations on members of the
1158 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1160 * @sma contains the semaphore structure.
1161 * @sops contains the operations to perform.
1162 * @nsops contains the number of operations to perform.
1163 * @alter contains the flag indicating whether changes are to be made.
1164 * Return 0 if permission is granted.
1167 * Check permission before allowing the @parent process to trace the
1169 * Security modules may also want to perform a process tracing check
1170 * during an execve in the set_security or apply_creds hooks of
1171 * binprm_security_ops if the process is being traced and its security
1172 * attributes would be changed by the execve.
1173 * @parent contains the task_struct structure for parent process.
1174 * @child contains the task_struct structure for child process.
1175 * @mode contains the PTRACE_MODE flags indicating the form of access.
1176 * Return 0 if permission is granted.
1178 * Get the @effective, @inheritable, and @permitted capability sets for
1179 * the @target process. The hook may also perform permission checking to
1180 * determine if the current process is allowed to see the capability sets
1181 * of the @target process.
1182 * @target contains the task_struct structure for target process.
1183 * @effective contains the effective capability set.
1184 * @inheritable contains the inheritable capability set.
1185 * @permitted contains the permitted capability set.
1186 * Return 0 if the capability sets were successfully obtained.
1188 * Check permission before setting the @effective, @inheritable, and
1189 * @permitted capability sets for the @target process.
1190 * Caveat: @target is also set to current if a set of processes is
1191 * specified (i.e. all processes other than current and init or a
1192 * particular process group). Hence, the capset_set hook may need to
1193 * revalidate permission to the actual target process.
1194 * @target contains the task_struct structure for target process.
1195 * @effective contains the effective capability set.
1196 * @inheritable contains the inheritable capability set.
1197 * @permitted contains the permitted capability set.
1198 * Return 0 if permission is granted.
1200 * Set the @effective, @inheritable, and @permitted capability sets for
1201 * the @target process. Since capset_check cannot always check permission
1202 * to the real @target process, this hook may also perform permission
1203 * checking to determine if the current process is allowed to set the
1204 * capability sets of the @target process. However, this hook has no way
1205 * of returning an error due to the structure of the sys_capset code.
1206 * @target contains the task_struct structure for target process.
1207 * @effective contains the effective capability set.
1208 * @inheritable contains the inheritable capability set.
1209 * @permitted contains the permitted capability set.
1211 * Check whether the @tsk process has the @cap capability.
1212 * @tsk contains the task_struct for the process.
1213 * @cap contains the capability <include/linux/capability.h>.
1214 * Return 0 if the capability is granted for @tsk.
1216 * Check permission before enabling or disabling process accounting. If
1217 * accounting is being enabled, then @file refers to the open file used to
1218 * store accounting records. If accounting is being disabled, then @file
1220 * @file contains the file structure for the accounting file (may be NULL).
1221 * Return 0 if permission is granted.
1223 * Check permission before accessing the @table sysctl variable in the
1224 * manner specified by @op.
1225 * @table contains the ctl_table structure for the sysctl variable.
1226 * @op contains the operation (001 = search, 002 = write, 004 = read).
1227 * Return 0 if permission is granted.
1229 * Check permission before accessing the kernel message ring or changing
1230 * logging to the console.
1231 * See the syslog(2) manual page for an explanation of the @type values.
1232 * @type contains the type of action.
1233 * Return 0 if permission is granted.
1235 * Check permission to change the system time.
1236 * struct timespec and timezone are defined in include/linux/time.h
1237 * @ts contains new time
1238 * @tz contains new timezone
1239 * Return 0 if permission is granted.
1240 * @vm_enough_memory:
1241 * Check permissions for allocating a new virtual mapping.
1242 * @mm contains the mm struct it is being added to.
1243 * @pages contains the number of pages.
1244 * Return 0 if permission is granted.
1246 * @register_security:
1247 * allow module stacking.
1248 * @name contains the name of the security module being stacked.
1249 * @ops contains a pointer to the struct security_operations of the module to stack.
1252 * Convert secid to security context.
1253 * @secid contains the security ID.
1254 * @secdata contains the pointer that stores the converted security context.
1256 * Convert security context to secid.
1257 * @secid contains the pointer to the generated security ID.
1258 * @secdata contains the security context.
1261 * Release the security context.
1262 * @secdata contains the security context.
1263 * @seclen contains the length of the security context.
1265 * Security hooks for Audit
1268 * Allocate and initialize an LSM audit rule structure.
1269 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1270 * @op contains the operator the rule uses.
1271 * @rulestr contains the context where the rule will be applied to.
1272 * @lsmrule contains a pointer to receive the result.
1273 * Return 0 if @lsmrule has been successfully set,
1274 * -EINVAL in case of an invalid rule.
1276 * @audit_rule_known:
1277 * Specifies whether given @rule contains any fields related to current LSM.
1278 * @rule contains the audit rule of interest.
1279 * Return 1 in case of relation found, 0 otherwise.
1281 * @audit_rule_match:
1282 * Determine if given @secid matches a rule previously approved
1283 * by @audit_rule_known.
1284 * @secid contains the security id in question.
1285 * @field contains the field which relates to current LSM.
1286 * @op contains the operator that will be used for matching.
1287 * @rule points to the audit rule that will be checked against.
1288 * @actx points to the audit context associated with the check.
1289 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1292 * Deallocate the LSM audit rule structure previously allocated by
1294 * @rule contains the allocated rule
1296 * This is the main security structure.
1298 struct security_operations {
1299 char name[SECURITY_NAME_MAX + 1];
1301 int (*ptrace) (struct task_struct *parent, struct task_struct *child,
1303 int (*capget) (struct task_struct *target,
1304 kernel_cap_t *effective,
1305 kernel_cap_t *inheritable, kernel_cap_t *permitted);
1306 int (*capset_check) (struct task_struct *target,
1307 kernel_cap_t *effective,
1308 kernel_cap_t *inheritable,
1309 kernel_cap_t *permitted);
1310 void (*capset_set) (struct task_struct *target,
1311 kernel_cap_t *effective,
1312 kernel_cap_t *inheritable,
1313 kernel_cap_t *permitted);
1314 int (*capable) (struct task_struct *tsk, int cap);
1315 int (*acct) (struct file *file);
1316 int (*sysctl) (struct ctl_table *table, int op);
1317 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1318 int (*quota_on) (struct dentry *dentry);
1319 int (*syslog) (int type);
1320 int (*settime) (struct timespec *ts, struct timezone *tz);
1321 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
1323 int (*bprm_alloc_security) (struct linux_binprm *bprm);
1324 void (*bprm_free_security) (struct linux_binprm *bprm);
1325 void (*bprm_apply_creds) (struct linux_binprm *bprm, int unsafe);
1326 void (*bprm_post_apply_creds) (struct linux_binprm *bprm);
1327 int (*bprm_set_security) (struct linux_binprm *bprm);
1328 int (*bprm_check_security) (struct linux_binprm *bprm);
1329 int (*bprm_secureexec) (struct linux_binprm *bprm);
1331 int (*sb_alloc_security) (struct super_block *sb);
1332 void (*sb_free_security) (struct super_block *sb);
1333 int (*sb_copy_data) (char *orig, char *copy);
1334 int (*sb_kern_mount) (struct super_block *sb, void *data);
1335 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
1336 int (*sb_statfs) (struct dentry *dentry);
1337 int (*sb_mount) (char *dev_name, struct path *path,
1338 char *type, unsigned long flags, void *data);
1339 int (*sb_check_sb) (struct vfsmount *mnt, struct path *path);
1340 int (*sb_umount) (struct vfsmount *mnt, int flags);
1341 void (*sb_umount_close) (struct vfsmount *mnt);
1342 void (*sb_umount_busy) (struct vfsmount *mnt);
1343 void (*sb_post_remount) (struct vfsmount *mnt,
1344 unsigned long flags, void *data);
1345 void (*sb_post_addmount) (struct vfsmount *mnt,
1346 struct path *mountpoint);
1347 int (*sb_pivotroot) (struct path *old_path,
1348 struct path *new_path);
1349 void (*sb_post_pivotroot) (struct path *old_path,
1350 struct path *new_path);
1351 int (*sb_get_mnt_opts) (const struct super_block *sb,
1352 struct security_mnt_opts *opts);
1353 int (*sb_set_mnt_opts) (struct super_block *sb,
1354 struct security_mnt_opts *opts);
1355 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1356 struct super_block *newsb);
1357 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
1359 int (*inode_alloc_security) (struct inode *inode);
1360 void (*inode_free_security) (struct inode *inode);
1361 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1362 char **name, void **value, size_t *len);
1363 int (*inode_create) (struct inode *dir,
1364 struct dentry *dentry, int mode);
1365 int (*inode_link) (struct dentry *old_dentry,
1366 struct inode *dir, struct dentry *new_dentry);
1367 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1368 int (*inode_symlink) (struct inode *dir,
1369 struct dentry *dentry, const char *old_name);
1370 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
1371 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1372 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1373 int mode, dev_t dev);
1374 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1375 struct inode *new_dir, struct dentry *new_dentry);
1376 int (*inode_readlink) (struct dentry *dentry);
1377 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1378 int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd);
1379 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1380 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1381 void (*inode_delete) (struct inode *inode);
1382 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1383 const void *value, size_t size, int flags);
1384 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1385 const void *value, size_t size, int flags);
1386 int (*inode_getxattr) (struct dentry *dentry, const char *name);
1387 int (*inode_listxattr) (struct dentry *dentry);
1388 int (*inode_removexattr) (struct dentry *dentry, const char *name);
1389 int (*inode_need_killpriv) (struct dentry *dentry);
1390 int (*inode_killpriv) (struct dentry *dentry);
1391 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1392 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1393 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1394 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
1396 int (*file_permission) (struct file *file, int mask);
1397 int (*file_alloc_security) (struct file *file);
1398 void (*file_free_security) (struct file *file);
1399 int (*file_ioctl) (struct file *file, unsigned int cmd,
1401 int (*file_mmap) (struct file *file,
1402 unsigned long reqprot, unsigned long prot,
1403 unsigned long flags, unsigned long addr,
1404 unsigned long addr_only);
1405 int (*file_mprotect) (struct vm_area_struct *vma,
1406 unsigned long reqprot,
1407 unsigned long prot);
1408 int (*file_lock) (struct file *file, unsigned int cmd);
1409 int (*file_fcntl) (struct file *file, unsigned int cmd,
1411 int (*file_set_fowner) (struct file *file);
1412 int (*file_send_sigiotask) (struct task_struct *tsk,
1413 struct fown_struct *fown, int sig);
1414 int (*file_receive) (struct file *file);
1415 int (*dentry_open) (struct file *file);
1417 int (*task_create) (unsigned long clone_flags);
1418 int (*task_alloc_security) (struct task_struct *p);
1419 void (*task_free_security) (struct task_struct *p);
1420 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1421 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1422 uid_t old_euid, uid_t old_suid, int flags);
1423 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1424 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1425 int (*task_getpgid) (struct task_struct *p);
1426 int (*task_getsid) (struct task_struct *p);
1427 void (*task_getsecid) (struct task_struct *p, u32 *secid);
1428 int (*task_setgroups) (struct group_info *group_info);
1429 int (*task_setnice) (struct task_struct *p, int nice);
1430 int (*task_setioprio) (struct task_struct *p, int ioprio);
1431 int (*task_getioprio) (struct task_struct *p);
1432 int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim);
1433 int (*task_setscheduler) (struct task_struct *p, int policy,
1434 struct sched_param *lp);
1435 int (*task_getscheduler) (struct task_struct *p);
1436 int (*task_movememory) (struct task_struct *p);
1437 int (*task_kill) (struct task_struct *p,
1438 struct siginfo *info, int sig, u32 secid);
1439 int (*task_wait) (struct task_struct *p);
1440 int (*task_prctl) (int option, unsigned long arg2,
1441 unsigned long arg3, unsigned long arg4,
1442 unsigned long arg5, long *rc_p);
1443 void (*task_reparent_to_init) (struct task_struct *p);
1444 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
1446 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
1447 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
1449 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1450 void (*msg_msg_free_security) (struct msg_msg *msg);
1452 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1453 void (*msg_queue_free_security) (struct msg_queue *msq);
1454 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1455 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1456 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1457 struct msg_msg *msg, int msqflg);
1458 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1459 struct msg_msg *msg,
1460 struct task_struct *target,
1461 long type, int mode);
1463 int (*shm_alloc_security) (struct shmid_kernel *shp);
1464 void (*shm_free_security) (struct shmid_kernel *shp);
1465 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1466 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1467 int (*shm_shmat) (struct shmid_kernel *shp,
1468 char __user *shmaddr, int shmflg);
1470 int (*sem_alloc_security) (struct sem_array *sma);
1471 void (*sem_free_security) (struct sem_array *sma);
1472 int (*sem_associate) (struct sem_array *sma, int semflg);
1473 int (*sem_semctl) (struct sem_array *sma, int cmd);
1474 int (*sem_semop) (struct sem_array *sma,
1475 struct sembuf *sops, unsigned nsops, int alter);
1477 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1478 int (*netlink_recv) (struct sk_buff *skb, int cap);
1480 /* allow module stacking */
1481 int (*register_security) (const char *name,
1482 struct security_operations *ops);
1484 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1486 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1487 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1488 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
1489 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
1490 void (*release_secctx) (char *secdata, u32 seclen);
1492 #ifdef CONFIG_SECURITY_NETWORK
1493 int (*unix_stream_connect) (struct socket *sock,
1494 struct socket *other, struct sock *newsk);
1495 int (*unix_may_send) (struct socket *sock, struct socket *other);
1497 int (*socket_create) (int family, int type, int protocol, int kern);
1498 int (*socket_post_create) (struct socket *sock, int family,
1499 int type, int protocol, int kern);
1500 int (*socket_bind) (struct socket *sock,
1501 struct sockaddr *address, int addrlen);
1502 int (*socket_connect) (struct socket *sock,
1503 struct sockaddr *address, int addrlen);
1504 int (*socket_listen) (struct socket *sock, int backlog);
1505 int (*socket_accept) (struct socket *sock, struct socket *newsock);
1506 void (*socket_post_accept) (struct socket *sock,
1507 struct socket *newsock);
1508 int (*socket_sendmsg) (struct socket *sock,
1509 struct msghdr *msg, int size);
1510 int (*socket_recvmsg) (struct socket *sock,
1511 struct msghdr *msg, int size, int flags);
1512 int (*socket_getsockname) (struct socket *sock);
1513 int (*socket_getpeername) (struct socket *sock);
1514 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1515 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1516 int (*socket_shutdown) (struct socket *sock, int how);
1517 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
1518 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1519 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
1520 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
1521 void (*sk_free_security) (struct sock *sk);
1522 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
1523 void (*sk_getsecid) (struct sock *sk, u32 *secid);
1524 void (*sock_graft) (struct sock *sk, struct socket *parent);
1525 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1526 struct request_sock *req);
1527 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1528 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1529 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
1530 #endif /* CONFIG_SECURITY_NETWORK */
1532 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1533 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
1534 struct xfrm_user_sec_ctx *sec_ctx);
1535 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1536 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1537 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
1538 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
1539 struct xfrm_user_sec_ctx *sec_ctx,
1541 void (*xfrm_state_free_security) (struct xfrm_state *x);
1542 int (*xfrm_state_delete_security) (struct xfrm_state *x);
1543 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1544 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1545 struct xfrm_policy *xp,
1547 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
1548 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1550 /* key management security hooks */
1552 int (*key_alloc) (struct key *key, struct task_struct *tsk, unsigned long flags);
1553 void (*key_free) (struct key *key);
1554 int (*key_permission) (key_ref_t key_ref,
1555 struct task_struct *context,
1557 int (*key_getsecurity)(struct key *key, char **_buffer);
1558 #endif /* CONFIG_KEYS */
1561 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1562 int (*audit_rule_known) (struct audit_krule *krule);
1563 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1564 struct audit_context *actx);
1565 void (*audit_rule_free) (void *lsmrule);
1566 #endif /* CONFIG_AUDIT */
1570 extern int security_init(void);
1571 extern int security_module_enable(struct security_operations *ops);
1572 extern int register_security(struct security_operations *ops);
1573 extern int mod_reg_security(const char *name, struct security_operations *ops);
1574 extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
1575 struct dentry *parent, void *data,
1576 const struct file_operations *fops);
1577 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1578 extern void securityfs_remove(struct dentry *dentry);
1580 /* Security operations */
1581 int security_ptrace(struct task_struct *parent, struct task_struct *child,
1583 int security_capget(struct task_struct *target,
1584 kernel_cap_t *effective,
1585 kernel_cap_t *inheritable,
1586 kernel_cap_t *permitted);
1587 int security_capset_check(struct task_struct *target,
1588 kernel_cap_t *effective,
1589 kernel_cap_t *inheritable,
1590 kernel_cap_t *permitted);
1591 void security_capset_set(struct task_struct *target,
1592 kernel_cap_t *effective,
1593 kernel_cap_t *inheritable,
1594 kernel_cap_t *permitted);
1595 int security_capable(struct task_struct *tsk, int cap);
1596 int security_acct(struct file *file);
1597 int security_sysctl(struct ctl_table *table, int op);
1598 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1599 int security_quota_on(struct dentry *dentry);
1600 int security_syslog(int type);
1601 int security_settime(struct timespec *ts, struct timezone *tz);
1602 int security_vm_enough_memory(long pages);
1603 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
1604 int security_bprm_alloc(struct linux_binprm *bprm);
1605 void security_bprm_free(struct linux_binprm *bprm);
1606 void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
1607 void security_bprm_post_apply_creds(struct linux_binprm *bprm);
1608 int security_bprm_set(struct linux_binprm *bprm);
1609 int security_bprm_check(struct linux_binprm *bprm);
1610 int security_bprm_secureexec(struct linux_binprm *bprm);
1611 int security_sb_alloc(struct super_block *sb);
1612 void security_sb_free(struct super_block *sb);
1613 int security_sb_copy_data(char *orig, char *copy);
1614 int security_sb_kern_mount(struct super_block *sb, void *data);
1615 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
1616 int security_sb_statfs(struct dentry *dentry);
1617 int security_sb_mount(char *dev_name, struct path *path,
1618 char *type, unsigned long flags, void *data);
1619 int security_sb_check_sb(struct vfsmount *mnt, struct path *path);
1620 int security_sb_umount(struct vfsmount *mnt, int flags);
1621 void security_sb_umount_close(struct vfsmount *mnt);
1622 void security_sb_umount_busy(struct vfsmount *mnt);
1623 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data);
1624 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
1625 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
1626 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
1627 int security_sb_get_mnt_opts(const struct super_block *sb,
1628 struct security_mnt_opts *opts);
1629 int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
1630 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1631 struct super_block *newsb);
1632 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
1634 int security_inode_alloc(struct inode *inode);
1635 void security_inode_free(struct inode *inode);
1636 int security_inode_init_security(struct inode *inode, struct inode *dir,
1637 char **name, void **value, size_t *len);
1638 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1639 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1640 struct dentry *new_dentry);
1641 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1642 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
1643 const char *old_name);
1644 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1645 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1646 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1647 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
1648 struct inode *new_dir, struct dentry *new_dentry);
1649 int security_inode_readlink(struct dentry *dentry);
1650 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
1651 int security_inode_permission(struct inode *inode, int mask, struct nameidata *nd);
1652 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1653 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
1654 void security_inode_delete(struct inode *inode);
1655 int security_inode_setxattr(struct dentry *dentry, const char *name,
1656 const void *value, size_t size, int flags);
1657 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1658 const void *value, size_t size, int flags);
1659 int security_inode_getxattr(struct dentry *dentry, const char *name);
1660 int security_inode_listxattr(struct dentry *dentry);
1661 int security_inode_removexattr(struct dentry *dentry, const char *name);
1662 int security_inode_need_killpriv(struct dentry *dentry);
1663 int security_inode_killpriv(struct dentry *dentry);
1664 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
1665 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1666 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
1667 void security_inode_getsecid(const struct inode *inode, u32 *secid);
1668 int security_file_permission(struct file *file, int mask);
1669 int security_file_alloc(struct file *file);
1670 void security_file_free(struct file *file);
1671 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1672 int security_file_mmap(struct file *file, unsigned long reqprot,
1673 unsigned long prot, unsigned long flags,
1674 unsigned long addr, unsigned long addr_only);
1675 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
1676 unsigned long prot);
1677 int security_file_lock(struct file *file, unsigned int cmd);
1678 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1679 int security_file_set_fowner(struct file *file);
1680 int security_file_send_sigiotask(struct task_struct *tsk,
1681 struct fown_struct *fown, int sig);
1682 int security_file_receive(struct file *file);
1683 int security_dentry_open(struct file *file);
1684 int security_task_create(unsigned long clone_flags);
1685 int security_task_alloc(struct task_struct *p);
1686 void security_task_free(struct task_struct *p);
1687 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
1688 int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
1689 uid_t old_suid, int flags);
1690 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags);
1691 int security_task_setpgid(struct task_struct *p, pid_t pgid);
1692 int security_task_getpgid(struct task_struct *p);
1693 int security_task_getsid(struct task_struct *p);
1694 void security_task_getsecid(struct task_struct *p, u32 *secid);
1695 int security_task_setgroups(struct group_info *group_info);
1696 int security_task_setnice(struct task_struct *p, int nice);
1697 int security_task_setioprio(struct task_struct *p, int ioprio);
1698 int security_task_getioprio(struct task_struct *p);
1699 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim);
1700 int security_task_setscheduler(struct task_struct *p,
1701 int policy, struct sched_param *lp);
1702 int security_task_getscheduler(struct task_struct *p);
1703 int security_task_movememory(struct task_struct *p);
1704 int security_task_kill(struct task_struct *p, struct siginfo *info,
1705 int sig, u32 secid);
1706 int security_task_wait(struct task_struct *p);
1707 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1708 unsigned long arg4, unsigned long arg5, long *rc_p);
1709 void security_task_reparent_to_init(struct task_struct *p);
1710 void security_task_to_inode(struct task_struct *p, struct inode *inode);
1711 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
1712 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
1713 int security_msg_msg_alloc(struct msg_msg *msg);
1714 void security_msg_msg_free(struct msg_msg *msg);
1715 int security_msg_queue_alloc(struct msg_queue *msq);
1716 void security_msg_queue_free(struct msg_queue *msq);
1717 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1718 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1719 int security_msg_queue_msgsnd(struct msg_queue *msq,
1720 struct msg_msg *msg, int msqflg);
1721 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1722 struct task_struct *target, long type, int mode);
1723 int security_shm_alloc(struct shmid_kernel *shp);
1724 void security_shm_free(struct shmid_kernel *shp);
1725 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1726 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1727 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1728 int security_sem_alloc(struct sem_array *sma);
1729 void security_sem_free(struct sem_array *sma);
1730 int security_sem_associate(struct sem_array *sma, int semflg);
1731 int security_sem_semctl(struct sem_array *sma, int cmd);
1732 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1733 unsigned nsops, int alter);
1734 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
1735 int security_getprocattr(struct task_struct *p, char *name, char **value);
1736 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1737 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1738 int security_netlink_recv(struct sk_buff *skb, int cap);
1739 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
1740 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
1741 void security_release_secctx(char *secdata, u32 seclen);
1743 #else /* CONFIG_SECURITY */
1744 struct security_mnt_opts {
1747 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1751 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1756 * This is the default capabilities functionality. Most of these functions
1757 * are just stubbed out, but a few must call the proper capable code.
1760 static inline int security_init(void)
1765 static inline int security_ptrace(struct task_struct *parent,
1766 struct task_struct *child,
1769 return cap_ptrace(parent, child, mode);
1772 static inline int security_capget(struct task_struct *target,
1773 kernel_cap_t *effective,
1774 kernel_cap_t *inheritable,
1775 kernel_cap_t *permitted)
1777 return cap_capget(target, effective, inheritable, permitted);
1780 static inline int security_capset_check(struct task_struct *target,
1781 kernel_cap_t *effective,
1782 kernel_cap_t *inheritable,
1783 kernel_cap_t *permitted)
1785 return cap_capset_check(target, effective, inheritable, permitted);
1788 static inline void security_capset_set(struct task_struct *target,
1789 kernel_cap_t *effective,
1790 kernel_cap_t *inheritable,
1791 kernel_cap_t *permitted)
1793 cap_capset_set(target, effective, inheritable, permitted);
1796 static inline int security_capable(struct task_struct *tsk, int cap)
1798 return cap_capable(tsk, cap);
1801 static inline int security_acct(struct file *file)
1806 static inline int security_sysctl(struct ctl_table *table, int op)
1811 static inline int security_quotactl(int cmds, int type, int id,
1812 struct super_block *sb)
1817 static inline int security_quota_on(struct dentry *dentry)
1822 static inline int security_syslog(int type)
1824 return cap_syslog(type);
1827 static inline int security_settime(struct timespec *ts, struct timezone *tz)
1829 return cap_settime(ts, tz);
1832 static inline int security_vm_enough_memory(long pages)
1834 return cap_vm_enough_memory(current->mm, pages);
1837 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1839 return cap_vm_enough_memory(mm, pages);
1842 static inline int security_bprm_alloc(struct linux_binprm *bprm)
1847 static inline void security_bprm_free(struct linux_binprm *bprm)
1850 static inline void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
1852 cap_bprm_apply_creds(bprm, unsafe);
1855 static inline void security_bprm_post_apply_creds(struct linux_binprm *bprm)
1860 static inline int security_bprm_set(struct linux_binprm *bprm)
1862 return cap_bprm_set_security(bprm);
1865 static inline int security_bprm_check(struct linux_binprm *bprm)
1870 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
1872 return cap_bprm_secureexec(bprm);
1875 static inline int security_sb_alloc(struct super_block *sb)
1880 static inline void security_sb_free(struct super_block *sb)
1883 static inline int security_sb_copy_data(char *orig, char *copy)
1888 static inline int security_sb_kern_mount(struct super_block *sb, void *data)
1893 static inline int security_sb_show_options(struct seq_file *m,
1894 struct super_block *sb)
1899 static inline int security_sb_statfs(struct dentry *dentry)
1904 static inline int security_sb_mount(char *dev_name, struct path *path,
1905 char *type, unsigned long flags,
1911 static inline int security_sb_check_sb(struct vfsmount *mnt,
1917 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
1922 static inline void security_sb_umount_close(struct vfsmount *mnt)
1925 static inline void security_sb_umount_busy(struct vfsmount *mnt)
1928 static inline void security_sb_post_remount(struct vfsmount *mnt,
1929 unsigned long flags, void *data)
1932 static inline void security_sb_post_addmount(struct vfsmount *mnt,
1933 struct path *mountpoint)
1936 static inline int security_sb_pivotroot(struct path *old_path,
1937 struct path *new_path)
1942 static inline void security_sb_post_pivotroot(struct path *old_path,
1943 struct path *new_path)
1945 static inline int security_sb_get_mnt_opts(const struct super_block *sb,
1946 struct security_mnt_opts *opts)
1948 security_init_mnt_opts(opts);
1952 static inline int security_sb_set_mnt_opts(struct super_block *sb,
1953 struct security_mnt_opts *opts)
1958 static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1959 struct super_block *newsb)
1962 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
1967 static inline int security_inode_alloc(struct inode *inode)
1972 static inline void security_inode_free(struct inode *inode)
1975 static inline int security_inode_init_security(struct inode *inode,
1984 static inline int security_inode_create(struct inode *dir,
1985 struct dentry *dentry,
1991 static inline int security_inode_link(struct dentry *old_dentry,
1993 struct dentry *new_dentry)
1998 static inline int security_inode_unlink(struct inode *dir,
1999 struct dentry *dentry)
2004 static inline int security_inode_symlink(struct inode *dir,
2005 struct dentry *dentry,
2006 const char *old_name)
2011 static inline int security_inode_mkdir(struct inode *dir,
2012 struct dentry *dentry,
2018 static inline int security_inode_rmdir(struct inode *dir,
2019 struct dentry *dentry)
2024 static inline int security_inode_mknod(struct inode *dir,
2025 struct dentry *dentry,
2026 int mode, dev_t dev)
2031 static inline int security_inode_rename(struct inode *old_dir,
2032 struct dentry *old_dentry,
2033 struct inode *new_dir,
2034 struct dentry *new_dentry)
2039 static inline int security_inode_readlink(struct dentry *dentry)
2044 static inline int security_inode_follow_link(struct dentry *dentry,
2045 struct nameidata *nd)
2050 static inline int security_inode_permission(struct inode *inode, int mask,
2051 struct nameidata *nd)
2056 static inline int security_inode_setattr(struct dentry *dentry,
2062 static inline int security_inode_getattr(struct vfsmount *mnt,
2063 struct dentry *dentry)
2068 static inline void security_inode_delete(struct inode *inode)
2071 static inline int security_inode_setxattr(struct dentry *dentry,
2072 const char *name, const void *value, size_t size, int flags)
2074 return cap_inode_setxattr(dentry, name, value, size, flags);
2077 static inline void security_inode_post_setxattr(struct dentry *dentry,
2078 const char *name, const void *value, size_t size, int flags)
2081 static inline int security_inode_getxattr(struct dentry *dentry,
2087 static inline int security_inode_listxattr(struct dentry *dentry)
2092 static inline int security_inode_removexattr(struct dentry *dentry,
2095 return cap_inode_removexattr(dentry, name);
2098 static inline int security_inode_need_killpriv(struct dentry *dentry)
2100 return cap_inode_need_killpriv(dentry);
2103 static inline int security_inode_killpriv(struct dentry *dentry)
2105 return cap_inode_killpriv(dentry);
2108 static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
2113 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2118 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2123 static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2128 static inline int security_file_permission(struct file *file, int mask)
2133 static inline int security_file_alloc(struct file *file)
2138 static inline void security_file_free(struct file *file)
2141 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2147 static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2149 unsigned long flags,
2151 unsigned long addr_only)
2156 static inline int security_file_mprotect(struct vm_area_struct *vma,
2157 unsigned long reqprot,
2163 static inline int security_file_lock(struct file *file, unsigned int cmd)
2168 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2174 static inline int security_file_set_fowner(struct file *file)
2179 static inline int security_file_send_sigiotask(struct task_struct *tsk,
2180 struct fown_struct *fown,
2186 static inline int security_file_receive(struct file *file)
2191 static inline int security_dentry_open(struct file *file)
2196 static inline int security_task_create(unsigned long clone_flags)
2201 static inline int security_task_alloc(struct task_struct *p)
2206 static inline void security_task_free(struct task_struct *p)
2209 static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
2215 static inline int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
2216 uid_t old_suid, int flags)
2218 return cap_task_post_setuid(old_ruid, old_euid, old_suid, flags);
2221 static inline int security_task_setgid(gid_t id0, gid_t id1, gid_t id2,
2227 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
2232 static inline int security_task_getpgid(struct task_struct *p)
2237 static inline int security_task_getsid(struct task_struct *p)
2242 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
2247 static inline int security_task_setgroups(struct group_info *group_info)
2252 static inline int security_task_setnice(struct task_struct *p, int nice)
2254 return cap_task_setnice(p, nice);
2257 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
2259 return cap_task_setioprio(p, ioprio);
2262 static inline int security_task_getioprio(struct task_struct *p)
2267 static inline int security_task_setrlimit(unsigned int resource,
2268 struct rlimit *new_rlim)
2273 static inline int security_task_setscheduler(struct task_struct *p,
2275 struct sched_param *lp)
2277 return cap_task_setscheduler(p, policy, lp);
2280 static inline int security_task_getscheduler(struct task_struct *p)
2285 static inline int security_task_movememory(struct task_struct *p)
2290 static inline int security_task_kill(struct task_struct *p,
2291 struct siginfo *info, int sig,
2297 static inline int security_task_wait(struct task_struct *p)
2302 static inline int security_task_prctl(int option, unsigned long arg2,
2305 unsigned long arg5, long *rc_p)
2307 return cap_task_prctl(option, arg2, arg3, arg3, arg5, rc_p);
2310 static inline void security_task_reparent_to_init(struct task_struct *p)
2312 cap_task_reparent_to_init(p);
2315 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2318 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2324 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2329 static inline int security_msg_msg_alloc(struct msg_msg *msg)
2334 static inline void security_msg_msg_free(struct msg_msg *msg)
2337 static inline int security_msg_queue_alloc(struct msg_queue *msq)
2342 static inline void security_msg_queue_free(struct msg_queue *msq)
2345 static inline int security_msg_queue_associate(struct msg_queue *msq,
2351 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
2356 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2357 struct msg_msg *msg, int msqflg)
2362 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2363 struct msg_msg *msg,
2364 struct task_struct *target,
2365 long type, int mode)
2370 static inline int security_shm_alloc(struct shmid_kernel *shp)
2375 static inline void security_shm_free(struct shmid_kernel *shp)
2378 static inline int security_shm_associate(struct shmid_kernel *shp,
2384 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
2389 static inline int security_shm_shmat(struct shmid_kernel *shp,
2390 char __user *shmaddr, int shmflg)
2395 static inline int security_sem_alloc(struct sem_array *sma)
2400 static inline void security_sem_free(struct sem_array *sma)
2403 static inline int security_sem_associate(struct sem_array *sma, int semflg)
2408 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
2413 static inline int security_sem_semop(struct sem_array *sma,
2414 struct sembuf *sops, unsigned nsops,
2420 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
2423 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
2428 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2433 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
2435 return cap_netlink_send(sk, skb);
2438 static inline int security_netlink_recv(struct sk_buff *skb, int cap)
2440 return cap_netlink_recv(skb, cap);
2443 static inline struct dentry *securityfs_create_dir(const char *name,
2444 struct dentry *parent)
2446 return ERR_PTR(-ENODEV);
2449 static inline struct dentry *securityfs_create_file(const char *name,
2451 struct dentry *parent,
2453 const struct file_operations *fops)
2455 return ERR_PTR(-ENODEV);
2458 static inline void securityfs_remove(struct dentry *dentry)
2462 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2467 static inline int security_secctx_to_secid(const char *secdata,
2474 static inline void security_release_secctx(char *secdata, u32 seclen)
2477 #endif /* CONFIG_SECURITY */
2479 #ifdef CONFIG_SECURITY_NETWORK
2481 int security_unix_stream_connect(struct socket *sock, struct socket *other,
2482 struct sock *newsk);
2483 int security_unix_may_send(struct socket *sock, struct socket *other);
2484 int security_socket_create(int family, int type, int protocol, int kern);
2485 int security_socket_post_create(struct socket *sock, int family,
2486 int type, int protocol, int kern);
2487 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2488 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2489 int security_socket_listen(struct socket *sock, int backlog);
2490 int security_socket_accept(struct socket *sock, struct socket *newsock);
2491 void security_socket_post_accept(struct socket *sock, struct socket *newsock);
2492 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2493 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2494 int size, int flags);
2495 int security_socket_getsockname(struct socket *sock);
2496 int security_socket_getpeername(struct socket *sock);
2497 int security_socket_getsockopt(struct socket *sock, int level, int optname);
2498 int security_socket_setsockopt(struct socket *sock, int level, int optname);
2499 int security_socket_shutdown(struct socket *sock, int how);
2500 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2501 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2502 int __user *optlen, unsigned len);
2503 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2504 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2505 void security_sk_free(struct sock *sk);
2506 void security_sk_clone(const struct sock *sk, struct sock *newsk);
2507 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2508 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2509 void security_sock_graft(struct sock*sk, struct socket *parent);
2510 int security_inet_conn_request(struct sock *sk,
2511 struct sk_buff *skb, struct request_sock *req);
2512 void security_inet_csk_clone(struct sock *newsk,
2513 const struct request_sock *req);
2514 void security_inet_conn_established(struct sock *sk,
2515 struct sk_buff *skb);
2517 #else /* CONFIG_SECURITY_NETWORK */
2518 static inline int security_unix_stream_connect(struct socket *sock,
2519 struct socket *other,
2525 static inline int security_unix_may_send(struct socket *sock,
2526 struct socket *other)
2531 static inline int security_socket_create(int family, int type,
2532 int protocol, int kern)
2537 static inline int security_socket_post_create(struct socket *sock,
2540 int protocol, int kern)
2545 static inline int security_socket_bind(struct socket *sock,
2546 struct sockaddr *address,
2552 static inline int security_socket_connect(struct socket *sock,
2553 struct sockaddr *address,
2559 static inline int security_socket_listen(struct socket *sock, int backlog)
2564 static inline int security_socket_accept(struct socket *sock,
2565 struct socket *newsock)
2570 static inline void security_socket_post_accept(struct socket *sock,
2571 struct socket *newsock)
2575 static inline int security_socket_sendmsg(struct socket *sock,
2576 struct msghdr *msg, int size)
2581 static inline int security_socket_recvmsg(struct socket *sock,
2582 struct msghdr *msg, int size,
2588 static inline int security_socket_getsockname(struct socket *sock)
2593 static inline int security_socket_getpeername(struct socket *sock)
2598 static inline int security_socket_getsockopt(struct socket *sock,
2599 int level, int optname)
2604 static inline int security_socket_setsockopt(struct socket *sock,
2605 int level, int optname)
2610 static inline int security_socket_shutdown(struct socket *sock, int how)
2614 static inline int security_sock_rcv_skb(struct sock *sk,
2615 struct sk_buff *skb)
2620 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2621 int __user *optlen, unsigned len)
2623 return -ENOPROTOOPT;
2626 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
2628 return -ENOPROTOOPT;
2631 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
2636 static inline void security_sk_free(struct sock *sk)
2640 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2644 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
2648 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2652 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
2656 static inline int security_inet_conn_request(struct sock *sk,
2657 struct sk_buff *skb, struct request_sock *req)
2662 static inline void security_inet_csk_clone(struct sock *newsk,
2663 const struct request_sock *req)
2667 static inline void security_inet_conn_established(struct sock *sk,
2668 struct sk_buff *skb)
2671 #endif /* CONFIG_SECURITY_NETWORK */
2673 #ifdef CONFIG_SECURITY_NETWORK_XFRM
2675 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2676 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2677 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2678 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
2679 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2680 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2681 struct xfrm_sec_ctx *polsec, u32 secid);
2682 int security_xfrm_state_delete(struct xfrm_state *x);
2683 void security_xfrm_state_free(struct xfrm_state *x);
2684 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
2685 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2686 struct xfrm_policy *xp, struct flowi *fl);
2687 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2688 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
2690 #else /* CONFIG_SECURITY_NETWORK_XFRM */
2692 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
2697 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
2702 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
2706 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
2711 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2712 struct xfrm_user_sec_ctx *sec_ctx)
2717 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2718 struct xfrm_sec_ctx *polsec, u32 secid)
2723 static inline void security_xfrm_state_free(struct xfrm_state *x)
2727 static inline int security_xfrm_state_delete(struct xfrm_state *x)
2732 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
2737 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2738 struct xfrm_policy *xp, struct flowi *fl)
2743 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
2748 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2752 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
2755 #ifdef CONFIG_SECURITY
2757 int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags);
2758 void security_key_free(struct key *key);
2759 int security_key_permission(key_ref_t key_ref,
2760 struct task_struct *context, key_perm_t perm);
2761 int security_key_getsecurity(struct key *key, char **_buffer);
2765 static inline int security_key_alloc(struct key *key,
2766 struct task_struct *tsk,
2767 unsigned long flags)
2772 static inline void security_key_free(struct key *key)
2776 static inline int security_key_permission(key_ref_t key_ref,
2777 struct task_struct *context,
2783 static inline int security_key_getsecurity(struct key *key, char **_buffer)
2790 #endif /* CONFIG_KEYS */
2793 #ifdef CONFIG_SECURITY
2794 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2795 int security_audit_rule_known(struct audit_krule *krule);
2796 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2797 struct audit_context *actx);
2798 void security_audit_rule_free(void *lsmrule);
2802 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2808 static inline int security_audit_rule_known(struct audit_krule *krule)
2813 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2814 void *lsmrule, struct audit_context *actx)
2819 static inline void security_audit_rule_free(void *lsmrule)
2822 #endif /* CONFIG_SECURITY */
2823 #endif /* CONFIG_AUDIT */
2825 #endif /* ! __LINUX_SECURITY_H */