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>
37 * These functions are in security/capability.c and are used
38 * as the default capabilities functions
40 extern int cap_capable (struct task_struct *tsk, int cap);
41 extern int cap_settime (struct timespec *ts, struct timezone *tz);
42 extern int cap_ptrace (struct task_struct *parent, struct task_struct *child);
43 extern int cap_capget (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
44 extern int cap_capset_check (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
45 extern void cap_capset_set (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
46 extern int cap_bprm_set_security (struct linux_binprm *bprm);
47 extern void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe);
48 extern int cap_bprm_secureexec(struct linux_binprm *bprm);
49 extern int cap_inode_setxattr(struct dentry *dentry, char *name, void *value, size_t size, int flags);
50 extern int cap_inode_removexattr(struct dentry *dentry, char *name);
51 extern int cap_task_post_setuid (uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags);
52 extern void cap_task_reparent_to_init (struct task_struct *p);
53 extern int cap_syslog (int type);
54 extern int cap_vm_enough_memory (long pages);
62 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
63 extern int cap_netlink_recv(struct sk_buff *skb);
66 * Values used in the task_security_ops calls
68 /* setuid or setgid, id0 == uid or gid */
69 #define LSM_SETID_ID 1
71 /* setreuid or setregid, id0 == real, id1 == eff */
72 #define LSM_SETID_RE 2
74 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
75 #define LSM_SETID_RES 4
77 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
78 #define LSM_SETID_FS 8
80 /* forward declares to avoid warnings */
83 struct swap_info_struct;
85 /* bprm_apply_creds unsafe reasons */
86 #define LSM_UNSAFE_SHARE 1
87 #define LSM_UNSAFE_PTRACE 2
88 #define LSM_UNSAFE_PTRACE_CAP 4
90 #ifdef CONFIG_SECURITY
93 * struct security_operations - main security structure
95 * Security hooks for program execution operations.
97 * @bprm_alloc_security:
98 * Allocate and attach a security structure to the @bprm->security field.
99 * The security field is initialized to NULL when the bprm structure is
101 * @bprm contains the linux_binprm structure to be modified.
102 * Return 0 if operation was successful.
103 * @bprm_free_security:
104 * @bprm contains the linux_binprm structure to be modified.
105 * Deallocate and clear the @bprm->security field.
107 * Compute and set the security attributes of a process being transformed
108 * by an execve operation based on the old attributes (current->security)
109 * and the information saved in @bprm->security by the set_security hook.
110 * Since this hook function (and its caller) are void, this hook can not
111 * return an error. However, it can leave the security attributes of the
112 * process unchanged if an access failure occurs at this point.
113 * bprm_apply_creds is called under task_lock. @unsafe indicates various
114 * reasons why it may be unsafe to change security state.
115 * @bprm contains the linux_binprm structure.
116 * @bprm_post_apply_creds:
117 * Runs after bprm_apply_creds with the task_lock dropped, so that
118 * functions which cannot be called safely under the task_lock can
119 * be used. This hook is a good place to perform state changes on
120 * the process such as closing open file descriptors to which access
121 * is no longer granted if the attributes were changed.
122 * Note that a security module might need to save state between
123 * bprm_apply_creds and bprm_post_apply_creds to store the decision
124 * on whether the process may proceed.
125 * @bprm contains the linux_binprm structure.
126 * @bprm_set_security:
127 * Save security information in the bprm->security field, typically based
128 * on information about the bprm->file, for later use by the apply_creds
129 * hook. This hook may also optionally check permissions (e.g. for
130 * transitions between security domains).
131 * This hook may be called multiple times during a single execve, e.g. for
132 * interpreters. The hook can tell whether it has already been called by
133 * checking to see if @bprm->security is non-NULL. If so, then the hook
134 * may decide either to retain the security information saved earlier or
136 * @bprm contains the linux_binprm structure.
137 * Return 0 if the hook is successful and permission is granted.
138 * @bprm_check_security:
139 * This hook mediates the point when a search for a binary handler will
140 * begin. It allows a check the @bprm->security value which is set in
141 * the preceding set_security call. The primary difference from
142 * set_security is that the argv list and envp list are reliably
143 * available in @bprm. This hook may be called multiple times
144 * during a single execve; and in each pass set_security is called
146 * @bprm contains the linux_binprm structure.
147 * Return 0 if the hook is successful and permission is granted.
149 * Return a boolean value (0 or 1) indicating whether a "secure exec"
150 * is required. The flag is passed in the auxiliary table
151 * on the initial stack to the ELF interpreter to indicate whether libc
152 * should enable secure mode.
153 * @bprm contains the linux_binprm structure.
155 * Security hooks for filesystem operations.
157 * @sb_alloc_security:
158 * Allocate and attach a security structure to the sb->s_security field.
159 * The s_security field is initialized to NULL when the structure is
161 * @sb contains the super_block structure to be modified.
162 * Return 0 if operation was successful.
164 * Deallocate and clear the sb->s_security field.
165 * @sb contains the super_block structure to be modified.
167 * Check permission before obtaining filesystem statistics for the @sb
169 * @sb contains the super_block structure for the filesystem.
170 * Return 0 if permission is granted.
172 * Check permission before an object specified by @dev_name is mounted on
173 * the mount point named by @nd. For an ordinary mount, @dev_name
174 * identifies a device if the file system type requires a device. For a
175 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
176 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
177 * pathname of the object being mounted.
178 * @dev_name contains the name for object being mounted.
179 * @nd contains the nameidata structure for mount point object.
180 * @type contains the filesystem type.
181 * @flags contains the mount flags.
182 * @data contains the filesystem-specific data.
183 * Return 0 if permission is granted.
185 * Allow mount option data to be copied prior to parsing by the filesystem,
186 * so that the security module can extract security-specific mount
187 * options cleanly (a filesystem may modify the data e.g. with strsep()).
188 * This also allows the original mount data to be stripped of security-
189 * specific options to avoid having to make filesystems aware of them.
190 * @type the type of filesystem being mounted.
191 * @orig the original mount data copied from userspace.
192 * @copy copied data which will be passed to the security module.
193 * Returns 0 if the copy was successful.
195 * Check permission before the device with superblock @mnt->sb is mounted
196 * on the mount point named by @nd.
197 * @mnt contains the vfsmount for device being mounted.
198 * @nd contains the nameidata object for the mount point.
199 * Return 0 if permission is granted.
201 * Check permission before the @mnt file system is unmounted.
202 * @mnt contains the mounted file system.
203 * @flags contains the unmount flags, e.g. MNT_FORCE.
204 * Return 0 if permission is granted.
206 * Close any files in the @mnt mounted filesystem that are held open by
207 * the security module. This hook is called during an umount operation
208 * prior to checking whether the filesystem is still busy.
209 * @mnt contains the mounted filesystem.
211 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
212 * any files that were closed by umount_close. This hook is called during
213 * an umount operation if the umount fails after a call to the
215 * @mnt contains the mounted filesystem.
217 * Update the security module's state when a filesystem is remounted.
218 * This hook is only called if the remount was successful.
219 * @mnt contains the mounted file system.
220 * @flags contains the new filesystem flags.
221 * @data contains the filesystem-specific data.
222 * @sb_post_mountroot:
223 * Update the security module's state when the root filesystem is mounted.
224 * This hook is only called if the mount was successful.
226 * Update the security module's state when a filesystem is mounted.
227 * This hook is called any time a mount is successfully grafetd to
229 * @mnt contains the mounted filesystem.
230 * @mountpoint_nd contains the nameidata structure for the mount point.
232 * Check permission before pivoting the root filesystem.
233 * @old_nd contains the nameidata structure for the new location of the current root (put_old).
234 * @new_nd contains the nameidata structure for the new root (new_root).
235 * Return 0 if permission is granted.
236 * @sb_post_pivotroot:
237 * Update module state after a successful pivot.
238 * @old_nd contains the nameidata structure for the old root.
239 * @new_nd contains the nameidata structure for the new root.
241 * Security hooks for inode operations.
243 * @inode_alloc_security:
244 * Allocate and attach a security structure to @inode->i_security. The
245 * i_security field is initialized to NULL when the inode structure is
247 * @inode contains the inode structure.
248 * Return 0 if operation was successful.
249 * @inode_free_security:
250 * @inode contains the inode structure.
251 * Deallocate the inode security structure and set @inode->i_security to
254 * Check permission to create a regular file.
255 * @dir contains inode structure of the parent of the new file.
256 * @dentry contains the dentry structure for the file to be created.
257 * @mode contains the file mode of the file to be created.
258 * Return 0 if permission is granted.
259 * @inode_post_create:
260 * Set the security attributes on a newly created regular file. This hook
261 * is called after a file has been successfully created.
262 * @dir contains the inode structure of the parent directory of the new file.
263 * @dentry contains the the dentry structure for the newly created file.
264 * @mode contains the file mode.
266 * Check permission before creating a new hard link to a file.
267 * @old_dentry contains the dentry structure for an existing link to the file.
268 * @dir contains the inode structure of the parent directory of the new link.
269 * @new_dentry contains the dentry structure for the new link.
270 * Return 0 if permission is granted.
272 * Set security attributes for a new hard link to a file.
273 * @old_dentry contains the dentry structure for the existing link.
274 * @dir contains the inode structure of the parent directory of the new file.
275 * @new_dentry contains the dentry structure for the new file link.
277 * Check the permission to remove a hard link to a file.
278 * @dir contains the inode structure of parent directory of the file.
279 * @dentry contains the dentry structure for file to be unlinked.
280 * Return 0 if permission is granted.
282 * Check the permission to create a symbolic link to a file.
283 * @dir contains the inode structure of parent directory of the symbolic link.
284 * @dentry contains the dentry structure of the symbolic link.
285 * @old_name contains the pathname of file.
286 * Return 0 if permission is granted.
287 * @inode_post_symlink:
288 * @dir contains the inode structure of the parent directory of the new link.
289 * @dentry contains the dentry structure of new symbolic link.
290 * @old_name contains the pathname of file.
291 * Set security attributes for a newly created symbolic link. Note that
292 * @dentry->d_inode may be NULL, since the filesystem might not
293 * instantiate the dentry (e.g. NFS).
295 * Check permissions to create a new directory in the existing directory
296 * associated with inode strcture @dir.
297 * @dir containst the inode structure of parent of the directory to be created.
298 * @dentry contains the dentry structure of new directory.
299 * @mode contains the mode of new directory.
300 * Return 0 if permission is granted.
302 * Set security attributes on a newly created directory.
303 * @dir contains the inode structure of parent of the directory to be created.
304 * @dentry contains the dentry structure of new directory.
305 * @mode contains the mode of new directory.
307 * Check the permission to remove a directory.
308 * @dir contains the inode structure of parent of the directory to be removed.
309 * @dentry contains the dentry structure of directory to be removed.
310 * Return 0 if permission is granted.
312 * Check permissions when creating a special file (or a socket or a fifo
313 * file created via the mknod system call). Note that if mknod operation
314 * is being done for a regular file, then the create hook will be called
316 * @dir contains the inode structure of parent of the new file.
317 * @dentry contains the dentry structure of the new file.
318 * @mode contains the mode of the new file.
319 * @dev contains the the device number.
320 * Return 0 if permission is granted.
322 * Set security attributes on a newly created special file (or socket or
323 * fifo file created via the mknod system call).
324 * @dir contains the inode structure of parent of the new node.
325 * @dentry contains the dentry structure of the new node.
326 * @mode contains the mode of the new node.
327 * @dev contains the the device number.
329 * Check for permission to rename a file or directory.
330 * @old_dir contains the inode structure for parent of the old link.
331 * @old_dentry contains the dentry structure of the old link.
332 * @new_dir contains the inode structure for parent of the new link.
333 * @new_dentry contains the dentry structure of the new link.
334 * Return 0 if permission is granted.
335 * @inode_post_rename:
336 * Set security attributes on a renamed file or directory.
337 * @old_dir contains the inode structure for parent of the old link.
338 * @old_dentry contains the dentry structure of the old link.
339 * @new_dir contains the inode structure for parent of the new link.
340 * @new_dentry contains the dentry structure of the new link.
342 * Check the permission to read the symbolic link.
343 * @dentry contains the dentry structure for the file link.
344 * Return 0 if permission is granted.
345 * @inode_follow_link:
346 * Check permission to follow a symbolic link when looking up a pathname.
347 * @dentry contains the dentry structure for the link.
348 * @nd contains the nameidata structure for the parent directory.
349 * Return 0 if permission is granted.
351 * Check permission before accessing an inode. This hook is called by the
352 * existing Linux permission function, so a security module can use it to
353 * provide additional checking for existing Linux permission checks.
354 * Notice that this hook is called when a file is opened (as well as many
355 * other operations), whereas the file_security_ops permission hook is
356 * called when the actual read/write operations are performed.
357 * @inode contains the inode structure to check.
358 * @mask contains the permission mask.
359 * @nd contains the nameidata (may be NULL).
360 * Return 0 if permission is granted.
362 * Check permission before setting file attributes. Note that the kernel
363 * call to notify_change is performed from several locations, whenever
364 * file attributes change (such as when a file is truncated, chown/chmod
365 * operations, transferring disk quotas, etc).
366 * @dentry contains the dentry structure for the file.
367 * @attr is the iattr structure containing the new file attributes.
368 * Return 0 if permission is granted.
370 * Check permission before obtaining file attributes.
371 * @mnt is the vfsmount where the dentry was looked up
372 * @dentry contains the dentry structure for the file.
373 * Return 0 if permission is granted.
375 * @inode contains the inode structure for deleted inode.
376 * This hook is called when a deleted inode is released (i.e. an inode
377 * with no hard links has its use count drop to zero). A security module
378 * can use this hook to release any persistent label associated with the
381 * Check permission before setting the extended attributes
382 * @value identified by @name for @dentry.
383 * Return 0 if permission is granted.
384 * @inode_post_setxattr:
385 * Update inode security field after successful setxattr operation.
386 * @value identified by @name for @dentry.
388 * Check permission before obtaining the extended attributes
389 * identified by @name for @dentry.
390 * Return 0 if permission is granted.
392 * Check permission before obtaining the list of extended attribute
394 * Return 0 if permission is granted.
395 * @inode_removexattr:
396 * Check permission before removing the extended attribute
397 * identified by @name for @dentry.
398 * Return 0 if permission is granted.
399 * @inode_getsecurity:
400 * Copy the extended attribute representation of the security label
401 * associated with @name for @inode into @buffer. @buffer may be
402 * NULL to request the size of the buffer required. @size indicates
403 * the size of @buffer in bytes. Note that @name is the remainder
404 * of the attribute name after the security. prefix has been removed.
405 * Return number of bytes used/required on success.
406 * @inode_setsecurity:
407 * Set the security label associated with @name for @inode from the
408 * extended attribute value @value. @size indicates the size of the
409 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
410 * Note that @name is the remainder of the attribute name after the
411 * security. prefix has been removed.
412 * Return 0 on success.
413 * @inode_listsecurity:
414 * Copy the extended attribute names for the security labels
415 * associated with @inode into @buffer. The maximum size of @buffer
416 * is specified by @buffer_size. @buffer may be NULL to request
417 * the size of the buffer required.
418 * Returns number of bytes used/required on success.
420 * Security hooks for file operations
423 * Check file permissions before accessing an open file. This hook is
424 * called by various operations that read or write files. A security
425 * module can use this hook to perform additional checking on these
426 * operations, e.g. to revalidate permissions on use to support privilege
427 * bracketing or policy changes. Notice that this hook is used when the
428 * actual read/write operations are performed, whereas the
429 * inode_security_ops hook is called when a file is opened (as well as
430 * many other operations).
431 * Caveat: Although this hook can be used to revalidate permissions for
432 * various system call operations that read or write files, it does not
433 * address the revalidation of permissions for memory-mapped files.
434 * Security modules must handle this separately if they need such
436 * @file contains the file structure being accessed.
437 * @mask contains the requested permissions.
438 * Return 0 if permission is granted.
439 * @file_alloc_security:
440 * Allocate and attach a security structure to the file->f_security field.
441 * The security field is initialized to NULL when the structure is first
443 * @file contains the file structure to secure.
444 * Return 0 if the hook is successful and permission is granted.
445 * @file_free_security:
446 * Deallocate and free any security structures stored in file->f_security.
447 * @file contains the file structure being modified.
449 * @file contains the file structure.
450 * @cmd contains the operation to perform.
451 * @arg contains the operational arguments.
452 * Check permission for an ioctl operation on @file. Note that @arg can
453 * sometimes represents a user space pointer; in other cases, it may be a
454 * simple integer value. When @arg represents a user space pointer, it
455 * should never be used by the security module.
456 * Return 0 if permission is granted.
458 * Check permissions for a mmap operation. The @file may be NULL, e.g.
459 * if mapping anonymous memory.
460 * @file contains the file structure for file to map (may be NULL).
461 * @prot contains the requested permissions.
462 * @flags contains the operational flags.
463 * Return 0 if permission is granted.
465 * Check permissions before changing memory access permissions.
466 * @vma contains the memory region to modify.
467 * @prot contains the requested permissions.
468 * Return 0 if permission is granted.
470 * Check permission before performing file locking operations.
471 * Note: this hook mediates both flock and fcntl style locks.
472 * @file contains the file structure.
473 * @cmd contains the posix-translated lock operation to perform
474 * (e.g. F_RDLCK, F_WRLCK).
475 * Return 0 if permission is granted.
477 * Check permission before allowing the file operation specified by @cmd
478 * from being performed on the file @file. Note that @arg can sometimes
479 * represents a user space pointer; in other cases, it may be a simple
480 * integer value. When @arg represents a user space pointer, it should
481 * never be used by the security module.
482 * @file contains the file structure.
483 * @cmd contains the operation to be performed.
484 * @arg contains the operational arguments.
485 * Return 0 if permission is granted.
487 * Save owner security information (typically from current->security) in
488 * file->f_security for later use by the send_sigiotask hook.
489 * @file contains the file structure to update.
490 * Return 0 on success.
491 * @file_send_sigiotask:
492 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
493 * process @tsk. Note that this hook is sometimes called from interrupt.
494 * Note that the fown_struct, @fown, is never outside the context of a
495 * struct file, so the file structure (and associated security information)
496 * can always be obtained:
497 * (struct file *)((long)fown - offsetof(struct file,f_owner));
498 * @tsk contains the structure of task receiving signal.
499 * @fown contains the file owner information.
500 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
501 * Return 0 if permission is granted.
503 * This hook allows security modules to control the ability of a process
504 * to receive an open file descriptor via socket IPC.
505 * @file contains the file structure being received.
506 * Return 0 if permission is granted.
508 * Security hooks for task operations.
511 * Check permission before creating a child process. See the clone(2)
512 * manual page for definitions of the @clone_flags.
513 * @clone_flags contains the flags indicating what should be shared.
514 * Return 0 if permission is granted.
515 * @task_alloc_security:
516 * @p contains the task_struct for child process.
517 * Allocate and attach a security structure to the p->security field. The
518 * security field is initialized to NULL when the task structure is
520 * Return 0 if operation was successful.
521 * @task_free_security:
522 * @p contains the task_struct for process.
523 * Deallocate and clear the p->security field.
525 * Check permission before setting one or more of the user identity
526 * attributes of the current process. The @flags parameter indicates
527 * which of the set*uid system calls invoked this hook and how to
528 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
529 * definitions at the beginning of this file for the @flags values and
531 * @id0 contains a uid.
532 * @id1 contains a uid.
533 * @id2 contains a uid.
534 * @flags contains one of the LSM_SETID_* values.
535 * Return 0 if permission is granted.
537 * Update the module's state after setting one or more of the user
538 * identity attributes of the current process. The @flags parameter
539 * indicates which of the set*uid system calls invoked this hook. If
540 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
541 * parameters are not used.
542 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
543 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
544 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
545 * @flags contains one of the LSM_SETID_* values.
546 * Return 0 on success.
548 * Check permission before setting one or more of the group identity
549 * attributes of the current process. The @flags parameter indicates
550 * which of the set*gid system calls invoked this hook and how to
551 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
552 * definitions at the beginning of this file for the @flags values and
554 * @id0 contains a gid.
555 * @id1 contains a gid.
556 * @id2 contains a gid.
557 * @flags contains one of the LSM_SETID_* values.
558 * Return 0 if permission is granted.
560 * Check permission before setting the process group identifier of the
561 * process @p to @pgid.
562 * @p contains the task_struct for process being modified.
563 * @pgid contains the new pgid.
564 * Return 0 if permission is granted.
566 * Check permission before getting the process group identifier of the
568 * @p contains the task_struct for the process.
569 * Return 0 if permission is granted.
571 * Check permission before getting the session identifier of the process
573 * @p contains the task_struct for the process.
574 * Return 0 if permission is granted.
576 * Check permission before setting the supplementary group set of the
578 * @group_info contains the new group information.
579 * Return 0 if permission is granted.
581 * Check permission before setting the nice value of @p to @nice.
582 * @p contains the task_struct of process.
583 * @nice contains the new nice value.
584 * Return 0 if permission is granted.
586 * Check permission before setting the resource limits of the current
587 * process for @resource to @new_rlim. The old resource limit values can
588 * be examined by dereferencing (current->signal->rlim + resource).
589 * @resource contains the resource whose limit is being set.
590 * @new_rlim contains the new limits for @resource.
591 * Return 0 if permission is granted.
592 * @task_setscheduler:
593 * Check permission before setting scheduling policy and/or parameters of
594 * process @p based on @policy and @lp.
595 * @p contains the task_struct for process.
596 * @policy contains the scheduling policy.
597 * @lp contains the scheduling parameters.
598 * Return 0 if permission is granted.
599 * @task_getscheduler:
600 * Check permission before obtaining scheduling information for process
602 * @p contains the task_struct for process.
603 * Return 0 if permission is granted.
605 * Check permission before sending signal @sig to @p. @info can be NULL,
606 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
607 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
608 * from the kernel and should typically be permitted.
609 * SIGIO signals are handled separately by the send_sigiotask hook in
611 * @p contains the task_struct for process.
612 * @info contains the signal information.
613 * @sig contains the signal value.
614 * Return 0 if permission is granted.
616 * Check permission before allowing a process to reap a child process @p
617 * and collect its status information.
618 * @p contains the task_struct for process.
619 * Return 0 if permission is granted.
621 * Check permission before performing a process control operation on the
623 * @option contains the operation.
624 * @arg2 contains a argument.
625 * @arg3 contains a argument.
626 * @arg4 contains a argument.
627 * @arg5 contains a argument.
628 * Return 0 if permission is granted.
629 * @task_reparent_to_init:
630 * Set the security attributes in @p->security for a kernel thread that
631 * is being reparented to the init task.
632 * @p contains the task_struct for the kernel thread.
634 * Set the security attributes for an inode based on an associated task's
635 * security attributes, e.g. for /proc/pid inodes.
636 * @p contains the task_struct for the task.
637 * @inode contains the inode structure for the inode.
639 * Security hooks for Netlink messaging.
642 * Save security information for a netlink message so that permission
643 * checking can be performed when the message is processed. The security
644 * information can be saved using the eff_cap field of the
645 * netlink_skb_parms structure. Also may be used to provide fine
646 * grained control over message transmission.
647 * @sk associated sock of task sending the message.,
648 * @skb contains the sk_buff structure for the netlink message.
649 * Return 0 if the information was successfully saved and message
650 * is allowed to be transmitted.
652 * Check permission before processing the received netlink message in
654 * @skb contains the sk_buff structure for the netlink message.
655 * Return 0 if permission is granted.
657 * Security hooks for Unix domain networking.
659 * @unix_stream_connect:
660 * Check permissions before establishing a Unix domain stream connection
661 * between @sock and @other.
662 * @sock contains the socket structure.
663 * @other contains the peer socket structure.
664 * Return 0 if permission is granted.
666 * Check permissions before connecting or sending datagrams from @sock to
668 * @sock contains the socket structure.
669 * @sock contains the peer socket structure.
670 * Return 0 if permission is granted.
672 * The @unix_stream_connect and @unix_may_send hooks were necessary because
673 * Linux provides an alternative to the conventional file name space for Unix
674 * domain sockets. Whereas binding and connecting to sockets in the file name
675 * space is mediated by the typical file permissions (and caught by the mknod
676 * and permission hooks in inode_security_ops), binding and connecting to
677 * sockets in the abstract name space is completely unmediated. Sufficient
678 * control of Unix domain sockets in the abstract name space isn't possible
679 * using only the socket layer hooks, since we need to know the actual target
680 * socket, which is not looked up until we are inside the af_unix code.
682 * Security hooks for socket operations.
685 * Check permissions prior to creating a new socket.
686 * @family contains the requested protocol family.
687 * @type contains the requested communications type.
688 * @protocol contains the requested protocol.
689 * @kern set to 1 if a kernel socket.
690 * Return 0 if permission is granted.
691 * @socket_post_create:
692 * This hook allows a module to update or allocate a per-socket security
693 * structure. Note that the security field was not added directly to the
694 * socket structure, but rather, the socket security information is stored
695 * in the associated inode. Typically, the inode alloc_security hook will
696 * allocate and and attach security information to
697 * sock->inode->i_security. This hook may be used to update the
698 * sock->inode->i_security field with additional information that wasn't
699 * available when the inode was allocated.
700 * @sock contains the newly created socket structure.
701 * @family contains the requested protocol family.
702 * @type contains the requested communications type.
703 * @protocol contains the requested protocol.
704 * @kern set to 1 if a kernel socket.
706 * Check permission before socket protocol layer bind operation is
707 * performed and the socket @sock is bound to the address specified in the
708 * @address parameter.
709 * @sock contains the socket structure.
710 * @address contains the address to bind to.
711 * @addrlen contains the length of address.
712 * Return 0 if permission is granted.
714 * Check permission before socket protocol layer connect operation
715 * attempts to connect socket @sock to a remote address, @address.
716 * @sock contains the socket structure.
717 * @address contains the address of remote endpoint.
718 * @addrlen contains the length of address.
719 * Return 0 if permission is granted.
721 * Check permission before socket protocol layer listen operation.
722 * @sock contains the socket structure.
723 * @backlog contains the maximum length for the pending connection queue.
724 * Return 0 if permission is granted.
726 * Check permission before accepting a new connection. Note that the new
727 * socket, @newsock, has been created and some information copied to it,
728 * but the accept operation has not actually been performed.
729 * @sock contains the listening socket structure.
730 * @newsock contains the newly created server socket for connection.
731 * Return 0 if permission is granted.
732 * @socket_post_accept:
733 * This hook allows a security module to copy security
734 * information into the newly created socket's inode.
735 * @sock contains the listening socket structure.
736 * @newsock contains the newly created server socket for connection.
738 * Check permission before transmitting a message to another socket.
739 * @sock contains the socket structure.
740 * @msg contains the message to be transmitted.
741 * @size contains the size of message.
742 * Return 0 if permission is granted.
744 * Check permission before receiving a message from a socket.
745 * @sock contains the socket structure.
746 * @msg contains the message structure.
747 * @size contains the size of message structure.
748 * @flags contains the operational flags.
749 * Return 0 if permission is granted.
750 * @socket_getsockname:
751 * Check permission before the local address (name) of the socket object
752 * @sock is retrieved.
753 * @sock contains the socket structure.
754 * Return 0 if permission is granted.
755 * @socket_getpeername:
756 * Check permission before the remote address (name) of a socket object
757 * @sock is retrieved.
758 * @sock contains the socket structure.
759 * Return 0 if permission is granted.
760 * @socket_getsockopt:
761 * Check permissions before retrieving the options associated with socket
763 * @sock contains the socket structure.
764 * @level contains the protocol level to retrieve option from.
765 * @optname contains the name of option to retrieve.
766 * Return 0 if permission is granted.
767 * @socket_setsockopt:
768 * Check permissions before setting the options associated with socket
770 * @sock contains the socket structure.
771 * @level contains the protocol level to set options for.
772 * @optname contains the name of the option to set.
773 * Return 0 if permission is granted.
775 * Checks permission before all or part of a connection on the socket
776 * @sock is shut down.
777 * @sock contains the socket structure.
778 * @how contains the flag indicating how future sends and receives are handled.
779 * Return 0 if permission is granted.
780 * @socket_sock_rcv_skb:
781 * Check permissions on incoming network packets. This hook is distinct
782 * from Netfilter's IP input hooks since it is the first time that the
783 * incoming sk_buff @skb has been associated with a particular socket, @sk.
784 * @sk contains the sock (not socket) associated with the incoming sk_buff.
785 * @skb contains the incoming network data.
786 * @socket_getpeersec:
787 * This hook allows the security module to provide peer socket security
788 * state to userspace via getsockopt SO_GETPEERSEC.
789 * @sock is the local socket.
790 * @optval userspace memory where the security state is to be copied.
791 * @optlen userspace int where the module should copy the actual length
792 * of the security state.
793 * @len as input is the maximum length to copy to userspace provided
795 * Return 0 if all is well, otherwise, typical getsockopt return
797 * @sk_alloc_security:
798 * Allocate and attach a security structure to the sk->sk_security field,
799 * which is used to copy security attributes between local stream sockets.
801 * Deallocate security structure.
803 * Security hooks affecting all System V IPC operations.
806 * Check permissions for access to IPC
807 * @ipcp contains the kernel IPC permission structure
808 * @flag contains the desired (requested) permission set
809 * Return 0 if permission is granted.
811 * Security hooks for individual messages held in System V IPC message queues
812 * @msg_msg_alloc_security:
813 * Allocate and attach a security structure to the msg->security field.
814 * The security field is initialized to NULL when the structure is first
816 * @msg contains the message structure to be modified.
817 * Return 0 if operation was successful and permission is granted.
818 * @msg_msg_free_security:
819 * Deallocate the security structure for this message.
820 * @msg contains the message structure to be modified.
822 * Security hooks for System V IPC Message Queues
824 * @msg_queue_alloc_security:
825 * Allocate and attach a security structure to the
826 * msq->q_perm.security field. The security field is initialized to
827 * NULL when the structure is first created.
828 * @msq contains the message queue structure to be modified.
829 * Return 0 if operation was successful and permission is granted.
830 * @msg_queue_free_security:
831 * Deallocate security structure for this message queue.
832 * @msq contains the message queue structure to be modified.
833 * @msg_queue_associate:
834 * Check permission when a message queue is requested through the
835 * msgget system call. This hook is only called when returning the
836 * message queue identifier for an existing message queue, not when a
837 * new message queue is created.
838 * @msq contains the message queue to act upon.
839 * @msqflg contains the operation control flags.
840 * Return 0 if permission is granted.
842 * Check permission when a message control operation specified by @cmd
843 * is to be performed on the message queue @msq.
844 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
845 * @msq contains the message queue to act upon. May be NULL.
846 * @cmd contains the operation to be performed.
847 * Return 0 if permission is granted.
849 * Check permission before a message, @msg, is enqueued on the message
851 * @msq contains the message queue to send message to.
852 * @msg contains the message to be enqueued.
853 * @msqflg contains operational flags.
854 * Return 0 if permission is granted.
856 * Check permission before a message, @msg, is removed from the message
857 * queue, @msq. The @target task structure contains a pointer to the
858 * process that will be receiving the message (not equal to the current
859 * process when inline receives are being performed).
860 * @msq contains the message queue to retrieve message from.
861 * @msg contains the message destination.
862 * @target contains the task structure for recipient process.
863 * @type contains the type of message requested.
864 * @mode contains the operational flags.
865 * Return 0 if permission is granted.
867 * Security hooks for System V Shared Memory Segments
869 * @shm_alloc_security:
870 * Allocate and attach a security structure to the shp->shm_perm.security
871 * field. The security field is initialized to NULL when the structure is
873 * @shp contains the shared memory structure to be modified.
874 * Return 0 if operation was successful and permission is granted.
875 * @shm_free_security:
876 * Deallocate the security struct for this memory segment.
877 * @shp contains the shared memory structure to be modified.
879 * Check permission when a shared memory region is requested through the
880 * shmget system call. This hook is only called when returning the shared
881 * memory region identifier for an existing region, not when a new shared
882 * memory region is created.
883 * @shp contains the shared memory structure to be modified.
884 * @shmflg contains the operation control flags.
885 * Return 0 if permission is granted.
887 * Check permission when a shared memory control operation specified by
888 * @cmd is to be performed on the shared memory region @shp.
889 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
890 * @shp contains shared memory structure to be modified.
891 * @cmd contains the operation to be performed.
892 * Return 0 if permission is granted.
894 * Check permissions prior to allowing the shmat system call to attach the
895 * shared memory segment @shp to the data segment of the calling process.
896 * The attaching address is specified by @shmaddr.
897 * @shp contains the shared memory structure to be modified.
898 * @shmaddr contains the address to attach memory region to.
899 * @shmflg contains the operational flags.
900 * Return 0 if permission is granted.
902 * Security hooks for System V Semaphores
904 * @sem_alloc_security:
905 * Allocate and attach a security structure to the sma->sem_perm.security
906 * field. The security field is initialized to NULL when the structure is
908 * @sma contains the semaphore structure
909 * Return 0 if operation was successful and permission is granted.
910 * @sem_free_security:
911 * deallocate security struct for this semaphore
912 * @sma contains the semaphore structure.
914 * Check permission when a semaphore is requested through the semget
915 * system call. This hook is only called when returning the semaphore
916 * identifier for an existing semaphore, not when a new one must be
918 * @sma contains the semaphore structure.
919 * @semflg contains the operation control flags.
920 * Return 0 if permission is granted.
922 * Check permission when a semaphore operation specified by @cmd is to be
923 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
924 * IPC_INFO or SEM_INFO.
925 * @sma contains the semaphore structure. May be NULL.
926 * @cmd contains the operation to be performed.
927 * Return 0 if permission is granted.
929 * Check permissions before performing operations on members of the
930 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
932 * @sma contains the semaphore structure.
933 * @sops contains the operations to perform.
934 * @nsops contains the number of operations to perform.
935 * @alter contains the flag indicating whether changes are to be made.
936 * Return 0 if permission is granted.
939 * Check permission before allowing the @parent process to trace the
941 * Security modules may also want to perform a process tracing check
942 * during an execve in the set_security or apply_creds hooks of
943 * binprm_security_ops if the process is being traced and its security
944 * attributes would be changed by the execve.
945 * @parent contains the task_struct structure for parent process.
946 * @child contains the task_struct structure for child process.
947 * Return 0 if permission is granted.
949 * Get the @effective, @inheritable, and @permitted capability sets for
950 * the @target process. The hook may also perform permission checking to
951 * determine if the current process is allowed to see the capability sets
952 * of the @target process.
953 * @target contains the task_struct structure for target process.
954 * @effective contains the effective capability set.
955 * @inheritable contains the inheritable capability set.
956 * @permitted contains the permitted capability set.
957 * Return 0 if the capability sets were successfully obtained.
959 * Check permission before setting the @effective, @inheritable, and
960 * @permitted capability sets for the @target process.
961 * Caveat: @target is also set to current if a set of processes is
962 * specified (i.e. all processes other than current and init or a
963 * particular process group). Hence, the capset_set hook may need to
964 * revalidate permission to the actual target process.
965 * @target contains the task_struct structure for target process.
966 * @effective contains the effective capability set.
967 * @inheritable contains the inheritable capability set.
968 * @permitted contains the permitted capability set.
969 * Return 0 if permission is granted.
971 * Set the @effective, @inheritable, and @permitted capability sets for
972 * the @target process. Since capset_check cannot always check permission
973 * to the real @target process, this hook may also perform permission
974 * checking to determine if the current process is allowed to set the
975 * capability sets of the @target process. However, this hook has no way
976 * of returning an error due to the structure of the sys_capset code.
977 * @target contains the task_struct structure for target process.
978 * @effective contains the effective capability set.
979 * @inheritable contains the inheritable capability set.
980 * @permitted contains the permitted capability set.
982 * Check permission before enabling or disabling process accounting. If
983 * accounting is being enabled, then @file refers to the open file used to
984 * store accounting records. If accounting is being disabled, then @file
986 * @file contains the file structure for the accounting file (may be NULL).
987 * Return 0 if permission is granted.
989 * Check permission before accessing the @table sysctl variable in the
990 * manner specified by @op.
991 * @table contains the ctl_table structure for the sysctl variable.
992 * @op contains the operation (001 = search, 002 = write, 004 = read).
993 * Return 0 if permission is granted.
995 * Check whether the @tsk process has the @cap capability.
996 * @tsk contains the task_struct for the process.
997 * @cap contains the capability <include/linux/capability.h>.
998 * Return 0 if the capability is granted for @tsk.
1000 * Check permission before accessing the kernel message ring or changing
1001 * logging to the console.
1002 * See the syslog(2) manual page for an explanation of the @type values.
1003 * @type contains the type of action.
1004 * Return 0 if permission is granted.
1006 * Check permission to change the system time.
1007 * struct timespec and timezone are defined in include/linux/time.h
1008 * @ts contains new time
1009 * @tz contains new timezone
1010 * Return 0 if permission is granted.
1011 * @vm_enough_memory:
1012 * Check permissions for allocating a new virtual mapping.
1013 * @pages contains the number of pages.
1014 * Return 0 if permission is granted.
1016 * @register_security:
1017 * allow module stacking.
1018 * @name contains the name of the security module being stacked.
1019 * @ops contains a pointer to the struct security_operations of the module to stack.
1020 * @unregister_security:
1021 * remove a stacked module.
1022 * @name contains the name of the security module being unstacked.
1023 * @ops contains a pointer to the struct security_operations of the module to unstack.
1025 * This is the main security structure.
1027 struct security_operations {
1028 int (*ptrace) (struct task_struct * parent, struct task_struct * child);
1029 int (*capget) (struct task_struct * target,
1030 kernel_cap_t * effective,
1031 kernel_cap_t * inheritable, kernel_cap_t * permitted);
1032 int (*capset_check) (struct task_struct * target,
1033 kernel_cap_t * effective,
1034 kernel_cap_t * inheritable,
1035 kernel_cap_t * permitted);
1036 void (*capset_set) (struct task_struct * target,
1037 kernel_cap_t * effective,
1038 kernel_cap_t * inheritable,
1039 kernel_cap_t * permitted);
1040 int (*acct) (struct file * file);
1041 int (*sysctl) (struct ctl_table * table, int op);
1042 int (*capable) (struct task_struct * tsk, int cap);
1043 int (*quotactl) (int cmds, int type, int id, struct super_block * sb);
1044 int (*quota_on) (struct dentry * dentry);
1045 int (*syslog) (int type);
1046 int (*settime) (struct timespec *ts, struct timezone *tz);
1047 int (*vm_enough_memory) (long pages);
1049 int (*bprm_alloc_security) (struct linux_binprm * bprm);
1050 void (*bprm_free_security) (struct linux_binprm * bprm);
1051 void (*bprm_apply_creds) (struct linux_binprm * bprm, int unsafe);
1052 void (*bprm_post_apply_creds) (struct linux_binprm * bprm);
1053 int (*bprm_set_security) (struct linux_binprm * bprm);
1054 int (*bprm_check_security) (struct linux_binprm * bprm);
1055 int (*bprm_secureexec) (struct linux_binprm * bprm);
1057 int (*sb_alloc_security) (struct super_block * sb);
1058 void (*sb_free_security) (struct super_block * sb);
1059 int (*sb_copy_data)(struct file_system_type *type,
1060 void *orig, void *copy);
1061 int (*sb_kern_mount) (struct super_block *sb, void *data);
1062 int (*sb_statfs) (struct super_block * sb);
1063 int (*sb_mount) (char *dev_name, struct nameidata * nd,
1064 char *type, unsigned long flags, void *data);
1065 int (*sb_check_sb) (struct vfsmount * mnt, struct nameidata * nd);
1066 int (*sb_umount) (struct vfsmount * mnt, int flags);
1067 void (*sb_umount_close) (struct vfsmount * mnt);
1068 void (*sb_umount_busy) (struct vfsmount * mnt);
1069 void (*sb_post_remount) (struct vfsmount * mnt,
1070 unsigned long flags, void *data);
1071 void (*sb_post_mountroot) (void);
1072 void (*sb_post_addmount) (struct vfsmount * mnt,
1073 struct nameidata * mountpoint_nd);
1074 int (*sb_pivotroot) (struct nameidata * old_nd,
1075 struct nameidata * new_nd);
1076 void (*sb_post_pivotroot) (struct nameidata * old_nd,
1077 struct nameidata * new_nd);
1079 int (*inode_alloc_security) (struct inode *inode);
1080 void (*inode_free_security) (struct inode *inode);
1081 int (*inode_create) (struct inode *dir,
1082 struct dentry *dentry, int mode);
1083 void (*inode_post_create) (struct inode *dir,
1084 struct dentry *dentry, int mode);
1085 int (*inode_link) (struct dentry *old_dentry,
1086 struct inode *dir, struct dentry *new_dentry);
1087 void (*inode_post_link) (struct dentry *old_dentry,
1088 struct inode *dir, struct dentry *new_dentry);
1089 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1090 int (*inode_symlink) (struct inode *dir,
1091 struct dentry *dentry, const char *old_name);
1092 void (*inode_post_symlink) (struct inode *dir,
1093 struct dentry *dentry,
1094 const char *old_name);
1095 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
1096 void (*inode_post_mkdir) (struct inode *dir, struct dentry *dentry,
1098 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1099 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1100 int mode, dev_t dev);
1101 void (*inode_post_mknod) (struct inode *dir, struct dentry *dentry,
1102 int mode, dev_t dev);
1103 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1104 struct inode *new_dir, struct dentry *new_dentry);
1105 void (*inode_post_rename) (struct inode *old_dir,
1106 struct dentry *old_dentry,
1107 struct inode *new_dir,
1108 struct dentry *new_dentry);
1109 int (*inode_readlink) (struct dentry *dentry);
1110 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1111 int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd);
1112 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1113 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1114 void (*inode_delete) (struct inode *inode);
1115 int (*inode_setxattr) (struct dentry *dentry, char *name, void *value,
1116 size_t size, int flags);
1117 void (*inode_post_setxattr) (struct dentry *dentry, char *name, void *value,
1118 size_t size, int flags);
1119 int (*inode_getxattr) (struct dentry *dentry, char *name);
1120 int (*inode_listxattr) (struct dentry *dentry);
1121 int (*inode_removexattr) (struct dentry *dentry, char *name);
1122 int (*inode_getsecurity)(struct inode *inode, const char *name, void *buffer, size_t size);
1123 int (*inode_setsecurity)(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1124 int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size);
1126 int (*file_permission) (struct file * file, int mask);
1127 int (*file_alloc_security) (struct file * file);
1128 void (*file_free_security) (struct file * file);
1129 int (*file_ioctl) (struct file * file, unsigned int cmd,
1131 int (*file_mmap) (struct file * file,
1132 unsigned long prot, unsigned long flags);
1133 int (*file_mprotect) (struct vm_area_struct * vma, unsigned long prot);
1134 int (*file_lock) (struct file * file, unsigned int cmd);
1135 int (*file_fcntl) (struct file * file, unsigned int cmd,
1137 int (*file_set_fowner) (struct file * file);
1138 int (*file_send_sigiotask) (struct task_struct * tsk,
1139 struct fown_struct * fown, int sig);
1140 int (*file_receive) (struct file * file);
1142 int (*task_create) (unsigned long clone_flags);
1143 int (*task_alloc_security) (struct task_struct * p);
1144 void (*task_free_security) (struct task_struct * p);
1145 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1146 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1147 uid_t old_euid, uid_t old_suid, int flags);
1148 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1149 int (*task_setpgid) (struct task_struct * p, pid_t pgid);
1150 int (*task_getpgid) (struct task_struct * p);
1151 int (*task_getsid) (struct task_struct * p);
1152 int (*task_setgroups) (struct group_info *group_info);
1153 int (*task_setnice) (struct task_struct * p, int nice);
1154 int (*task_setrlimit) (unsigned int resource, struct rlimit * new_rlim);
1155 int (*task_setscheduler) (struct task_struct * p, int policy,
1156 struct sched_param * lp);
1157 int (*task_getscheduler) (struct task_struct * p);
1158 int (*task_kill) (struct task_struct * p,
1159 struct siginfo * info, int sig);
1160 int (*task_wait) (struct task_struct * p);
1161 int (*task_prctl) (int option, unsigned long arg2,
1162 unsigned long arg3, unsigned long arg4,
1163 unsigned long arg5);
1164 void (*task_reparent_to_init) (struct task_struct * p);
1165 void (*task_to_inode)(struct task_struct *p, struct inode *inode);
1167 int (*ipc_permission) (struct kern_ipc_perm * ipcp, short flag);
1169 int (*msg_msg_alloc_security) (struct msg_msg * msg);
1170 void (*msg_msg_free_security) (struct msg_msg * msg);
1172 int (*msg_queue_alloc_security) (struct msg_queue * msq);
1173 void (*msg_queue_free_security) (struct msg_queue * msq);
1174 int (*msg_queue_associate) (struct msg_queue * msq, int msqflg);
1175 int (*msg_queue_msgctl) (struct msg_queue * msq, int cmd);
1176 int (*msg_queue_msgsnd) (struct msg_queue * msq,
1177 struct msg_msg * msg, int msqflg);
1178 int (*msg_queue_msgrcv) (struct msg_queue * msq,
1179 struct msg_msg * msg,
1180 struct task_struct * target,
1181 long type, int mode);
1183 int (*shm_alloc_security) (struct shmid_kernel * shp);
1184 void (*shm_free_security) (struct shmid_kernel * shp);
1185 int (*shm_associate) (struct shmid_kernel * shp, int shmflg);
1186 int (*shm_shmctl) (struct shmid_kernel * shp, int cmd);
1187 int (*shm_shmat) (struct shmid_kernel * shp,
1188 char __user *shmaddr, int shmflg);
1190 int (*sem_alloc_security) (struct sem_array * sma);
1191 void (*sem_free_security) (struct sem_array * sma);
1192 int (*sem_associate) (struct sem_array * sma, int semflg);
1193 int (*sem_semctl) (struct sem_array * sma, int cmd);
1194 int (*sem_semop) (struct sem_array * sma,
1195 struct sembuf * sops, unsigned nsops, int alter);
1197 int (*netlink_send) (struct sock * sk, struct sk_buff * skb);
1198 int (*netlink_recv) (struct sk_buff * skb);
1200 /* allow module stacking */
1201 int (*register_security) (const char *name,
1202 struct security_operations *ops);
1203 int (*unregister_security) (const char *name,
1204 struct security_operations *ops);
1206 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1208 int (*getprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1209 int (*setprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1211 #ifdef CONFIG_SECURITY_NETWORK
1212 int (*unix_stream_connect) (struct socket * sock,
1213 struct socket * other, struct sock * newsk);
1214 int (*unix_may_send) (struct socket * sock, struct socket * other);
1216 int (*socket_create) (int family, int type, int protocol, int kern);
1217 void (*socket_post_create) (struct socket * sock, int family,
1218 int type, int protocol, int kern);
1219 int (*socket_bind) (struct socket * sock,
1220 struct sockaddr * address, int addrlen);
1221 int (*socket_connect) (struct socket * sock,
1222 struct sockaddr * address, int addrlen);
1223 int (*socket_listen) (struct socket * sock, int backlog);
1224 int (*socket_accept) (struct socket * sock, struct socket * newsock);
1225 void (*socket_post_accept) (struct socket * sock,
1226 struct socket * newsock);
1227 int (*socket_sendmsg) (struct socket * sock,
1228 struct msghdr * msg, int size);
1229 int (*socket_recvmsg) (struct socket * sock,
1230 struct msghdr * msg, int size, int flags);
1231 int (*socket_getsockname) (struct socket * sock);
1232 int (*socket_getpeername) (struct socket * sock);
1233 int (*socket_getsockopt) (struct socket * sock, int level, int optname);
1234 int (*socket_setsockopt) (struct socket * sock, int level, int optname);
1235 int (*socket_shutdown) (struct socket * sock, int how);
1236 int (*socket_sock_rcv_skb) (struct sock * sk, struct sk_buff * skb);
1237 int (*socket_getpeersec) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1238 int (*sk_alloc_security) (struct sock *sk, int family, int priority);
1239 void (*sk_free_security) (struct sock *sk);
1240 #endif /* CONFIG_SECURITY_NETWORK */
1243 /* global variables */
1244 extern struct security_operations *security_ops;
1247 static inline int security_ptrace (struct task_struct * parent, struct task_struct * child)
1249 return security_ops->ptrace (parent, child);
1252 static inline int security_capget (struct task_struct *target,
1253 kernel_cap_t *effective,
1254 kernel_cap_t *inheritable,
1255 kernel_cap_t *permitted)
1257 return security_ops->capget (target, effective, inheritable, permitted);
1260 static inline int security_capset_check (struct task_struct *target,
1261 kernel_cap_t *effective,
1262 kernel_cap_t *inheritable,
1263 kernel_cap_t *permitted)
1265 return security_ops->capset_check (target, effective, inheritable, permitted);
1268 static inline void security_capset_set (struct task_struct *target,
1269 kernel_cap_t *effective,
1270 kernel_cap_t *inheritable,
1271 kernel_cap_t *permitted)
1273 security_ops->capset_set (target, effective, inheritable, permitted);
1276 static inline int security_acct (struct file *file)
1278 return security_ops->acct (file);
1281 static inline int security_sysctl(struct ctl_table *table, int op)
1283 return security_ops->sysctl(table, op);
1286 static inline int security_quotactl (int cmds, int type, int id,
1287 struct super_block *sb)
1289 return security_ops->quotactl (cmds, type, id, sb);
1292 static inline int security_quota_on (struct dentry * dentry)
1294 return security_ops->quota_on (dentry);
1297 static inline int security_syslog(int type)
1299 return security_ops->syslog(type);
1302 static inline int security_settime(struct timespec *ts, struct timezone *tz)
1304 return security_ops->settime(ts, tz);
1308 static inline int security_vm_enough_memory(long pages)
1310 return security_ops->vm_enough_memory(pages);
1313 static inline int security_bprm_alloc (struct linux_binprm *bprm)
1315 return security_ops->bprm_alloc_security (bprm);
1317 static inline void security_bprm_free (struct linux_binprm *bprm)
1319 security_ops->bprm_free_security (bprm);
1321 static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
1323 security_ops->bprm_apply_creds (bprm, unsafe);
1325 static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
1327 security_ops->bprm_post_apply_creds (bprm);
1329 static inline int security_bprm_set (struct linux_binprm *bprm)
1331 return security_ops->bprm_set_security (bprm);
1334 static inline int security_bprm_check (struct linux_binprm *bprm)
1336 return security_ops->bprm_check_security (bprm);
1339 static inline int security_bprm_secureexec (struct linux_binprm *bprm)
1341 return security_ops->bprm_secureexec (bprm);
1344 static inline int security_sb_alloc (struct super_block *sb)
1346 return security_ops->sb_alloc_security (sb);
1349 static inline void security_sb_free (struct super_block *sb)
1351 security_ops->sb_free_security (sb);
1354 static inline int security_sb_copy_data (struct file_system_type *type,
1355 void *orig, void *copy)
1357 return security_ops->sb_copy_data (type, orig, copy);
1360 static inline int security_sb_kern_mount (struct super_block *sb, void *data)
1362 return security_ops->sb_kern_mount (sb, data);
1365 static inline int security_sb_statfs (struct super_block *sb)
1367 return security_ops->sb_statfs (sb);
1370 static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
1371 char *type, unsigned long flags,
1374 return security_ops->sb_mount (dev_name, nd, type, flags, data);
1377 static inline int security_sb_check_sb (struct vfsmount *mnt,
1378 struct nameidata *nd)
1380 return security_ops->sb_check_sb (mnt, nd);
1383 static inline int security_sb_umount (struct vfsmount *mnt, int flags)
1385 return security_ops->sb_umount (mnt, flags);
1388 static inline void security_sb_umount_close (struct vfsmount *mnt)
1390 security_ops->sb_umount_close (mnt);
1393 static inline void security_sb_umount_busy (struct vfsmount *mnt)
1395 security_ops->sb_umount_busy (mnt);
1398 static inline void security_sb_post_remount (struct vfsmount *mnt,
1399 unsigned long flags, void *data)
1401 security_ops->sb_post_remount (mnt, flags, data);
1404 static inline void security_sb_post_mountroot (void)
1406 security_ops->sb_post_mountroot ();
1409 static inline void security_sb_post_addmount (struct vfsmount *mnt,
1410 struct nameidata *mountpoint_nd)
1412 security_ops->sb_post_addmount (mnt, mountpoint_nd);
1415 static inline int security_sb_pivotroot (struct nameidata *old_nd,
1416 struct nameidata *new_nd)
1418 return security_ops->sb_pivotroot (old_nd, new_nd);
1421 static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
1422 struct nameidata *new_nd)
1424 security_ops->sb_post_pivotroot (old_nd, new_nd);
1427 static inline int security_inode_alloc (struct inode *inode)
1429 return security_ops->inode_alloc_security (inode);
1432 static inline void security_inode_free (struct inode *inode)
1434 security_ops->inode_free_security (inode);
1437 static inline int security_inode_create (struct inode *dir,
1438 struct dentry *dentry,
1441 return security_ops->inode_create (dir, dentry, mode);
1444 static inline void security_inode_post_create (struct inode *dir,
1445 struct dentry *dentry,
1448 security_ops->inode_post_create (dir, dentry, mode);
1451 static inline int security_inode_link (struct dentry *old_dentry,
1453 struct dentry *new_dentry)
1455 return security_ops->inode_link (old_dentry, dir, new_dentry);
1458 static inline void security_inode_post_link (struct dentry *old_dentry,
1460 struct dentry *new_dentry)
1462 security_ops->inode_post_link (old_dentry, dir, new_dentry);
1465 static inline int security_inode_unlink (struct inode *dir,
1466 struct dentry *dentry)
1468 return security_ops->inode_unlink (dir, dentry);
1471 static inline int security_inode_symlink (struct inode *dir,
1472 struct dentry *dentry,
1473 const char *old_name)
1475 return security_ops->inode_symlink (dir, dentry, old_name);
1478 static inline void security_inode_post_symlink (struct inode *dir,
1479 struct dentry *dentry,
1480 const char *old_name)
1482 security_ops->inode_post_symlink (dir, dentry, old_name);
1485 static inline int security_inode_mkdir (struct inode *dir,
1486 struct dentry *dentry,
1489 return security_ops->inode_mkdir (dir, dentry, mode);
1492 static inline void security_inode_post_mkdir (struct inode *dir,
1493 struct dentry *dentry,
1496 security_ops->inode_post_mkdir (dir, dentry, mode);
1499 static inline int security_inode_rmdir (struct inode *dir,
1500 struct dentry *dentry)
1502 return security_ops->inode_rmdir (dir, dentry);
1505 static inline int security_inode_mknod (struct inode *dir,
1506 struct dentry *dentry,
1507 int mode, dev_t dev)
1509 return security_ops->inode_mknod (dir, dentry, mode, dev);
1512 static inline void security_inode_post_mknod (struct inode *dir,
1513 struct dentry *dentry,
1514 int mode, dev_t dev)
1516 security_ops->inode_post_mknod (dir, dentry, mode, dev);
1519 static inline int security_inode_rename (struct inode *old_dir,
1520 struct dentry *old_dentry,
1521 struct inode *new_dir,
1522 struct dentry *new_dentry)
1524 return security_ops->inode_rename (old_dir, old_dentry,
1525 new_dir, new_dentry);
1528 static inline void security_inode_post_rename (struct inode *old_dir,
1529 struct dentry *old_dentry,
1530 struct inode *new_dir,
1531 struct dentry *new_dentry)
1533 security_ops->inode_post_rename (old_dir, old_dentry,
1534 new_dir, new_dentry);
1537 static inline int security_inode_readlink (struct dentry *dentry)
1539 return security_ops->inode_readlink (dentry);
1542 static inline int security_inode_follow_link (struct dentry *dentry,
1543 struct nameidata *nd)
1545 return security_ops->inode_follow_link (dentry, nd);
1548 static inline int security_inode_permission (struct inode *inode, int mask,
1549 struct nameidata *nd)
1551 return security_ops->inode_permission (inode, mask, nd);
1554 static inline int security_inode_setattr (struct dentry *dentry,
1557 return security_ops->inode_setattr (dentry, attr);
1560 static inline int security_inode_getattr (struct vfsmount *mnt,
1561 struct dentry *dentry)
1563 return security_ops->inode_getattr (mnt, dentry);
1566 static inline void security_inode_delete (struct inode *inode)
1568 security_ops->inode_delete (inode);
1571 static inline int security_inode_setxattr (struct dentry *dentry, char *name,
1572 void *value, size_t size, int flags)
1574 return security_ops->inode_setxattr (dentry, name, value, size, flags);
1577 static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
1578 void *value, size_t size, int flags)
1580 security_ops->inode_post_setxattr (dentry, name, value, size, flags);
1583 static inline int security_inode_getxattr (struct dentry *dentry, char *name)
1585 return security_ops->inode_getxattr (dentry, name);
1588 static inline int security_inode_listxattr (struct dentry *dentry)
1590 return security_ops->inode_listxattr (dentry);
1593 static inline int security_inode_removexattr (struct dentry *dentry, char *name)
1595 return security_ops->inode_removexattr (dentry, name);
1598 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
1600 return security_ops->inode_getsecurity(inode, name, buffer, size);
1603 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
1605 return security_ops->inode_setsecurity(inode, name, value, size, flags);
1608 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
1610 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
1613 static inline int security_file_permission (struct file *file, int mask)
1615 return security_ops->file_permission (file, mask);
1618 static inline int security_file_alloc (struct file *file)
1620 return security_ops->file_alloc_security (file);
1623 static inline void security_file_free (struct file *file)
1625 security_ops->file_free_security (file);
1628 static inline int security_file_ioctl (struct file *file, unsigned int cmd,
1631 return security_ops->file_ioctl (file, cmd, arg);
1634 static inline int security_file_mmap (struct file *file, unsigned long prot,
1635 unsigned long flags)
1637 return security_ops->file_mmap (file, prot, flags);
1640 static inline int security_file_mprotect (struct vm_area_struct *vma,
1643 return security_ops->file_mprotect (vma, prot);
1646 static inline int security_file_lock (struct file *file, unsigned int cmd)
1648 return security_ops->file_lock (file, cmd);
1651 static inline int security_file_fcntl (struct file *file, unsigned int cmd,
1654 return security_ops->file_fcntl (file, cmd, arg);
1657 static inline int security_file_set_fowner (struct file *file)
1659 return security_ops->file_set_fowner (file);
1662 static inline int security_file_send_sigiotask (struct task_struct *tsk,
1663 struct fown_struct *fown,
1666 return security_ops->file_send_sigiotask (tsk, fown, sig);
1669 static inline int security_file_receive (struct file *file)
1671 return security_ops->file_receive (file);
1674 static inline int security_task_create (unsigned long clone_flags)
1676 return security_ops->task_create (clone_flags);
1679 static inline int security_task_alloc (struct task_struct *p)
1681 return security_ops->task_alloc_security (p);
1684 static inline void security_task_free (struct task_struct *p)
1686 security_ops->task_free_security (p);
1689 static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
1692 return security_ops->task_setuid (id0, id1, id2, flags);
1695 static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
1696 uid_t old_suid, int flags)
1698 return security_ops->task_post_setuid (old_ruid, old_euid, old_suid, flags);
1701 static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
1704 return security_ops->task_setgid (id0, id1, id2, flags);
1707 static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
1709 return security_ops->task_setpgid (p, pgid);
1712 static inline int security_task_getpgid (struct task_struct *p)
1714 return security_ops->task_getpgid (p);
1717 static inline int security_task_getsid (struct task_struct *p)
1719 return security_ops->task_getsid (p);
1722 static inline int security_task_setgroups (struct group_info *group_info)
1724 return security_ops->task_setgroups (group_info);
1727 static inline int security_task_setnice (struct task_struct *p, int nice)
1729 return security_ops->task_setnice (p, nice);
1732 static inline int security_task_setrlimit (unsigned int resource,
1733 struct rlimit *new_rlim)
1735 return security_ops->task_setrlimit (resource, new_rlim);
1738 static inline int security_task_setscheduler (struct task_struct *p,
1740 struct sched_param *lp)
1742 return security_ops->task_setscheduler (p, policy, lp);
1745 static inline int security_task_getscheduler (struct task_struct *p)
1747 return security_ops->task_getscheduler (p);
1750 static inline int security_task_kill (struct task_struct *p,
1751 struct siginfo *info, int sig)
1753 return security_ops->task_kill (p, info, sig);
1756 static inline int security_task_wait (struct task_struct *p)
1758 return security_ops->task_wait (p);
1761 static inline int security_task_prctl (int option, unsigned long arg2,
1766 return security_ops->task_prctl (option, arg2, arg3, arg4, arg5);
1769 static inline void security_task_reparent_to_init (struct task_struct *p)
1771 security_ops->task_reparent_to_init (p);
1774 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1776 security_ops->task_to_inode(p, inode);
1779 static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
1782 return security_ops->ipc_permission (ipcp, flag);
1785 static inline int security_msg_msg_alloc (struct msg_msg * msg)
1787 return security_ops->msg_msg_alloc_security (msg);
1790 static inline void security_msg_msg_free (struct msg_msg * msg)
1792 security_ops->msg_msg_free_security(msg);
1795 static inline int security_msg_queue_alloc (struct msg_queue *msq)
1797 return security_ops->msg_queue_alloc_security (msq);
1800 static inline void security_msg_queue_free (struct msg_queue *msq)
1802 security_ops->msg_queue_free_security (msq);
1805 static inline int security_msg_queue_associate (struct msg_queue * msq,
1808 return security_ops->msg_queue_associate (msq, msqflg);
1811 static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
1813 return security_ops->msg_queue_msgctl (msq, cmd);
1816 static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
1817 struct msg_msg * msg, int msqflg)
1819 return security_ops->msg_queue_msgsnd (msq, msg, msqflg);
1822 static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
1823 struct msg_msg * msg,
1824 struct task_struct * target,
1825 long type, int mode)
1827 return security_ops->msg_queue_msgrcv (msq, msg, target, type, mode);
1830 static inline int security_shm_alloc (struct shmid_kernel *shp)
1832 return security_ops->shm_alloc_security (shp);
1835 static inline void security_shm_free (struct shmid_kernel *shp)
1837 security_ops->shm_free_security (shp);
1840 static inline int security_shm_associate (struct shmid_kernel * shp,
1843 return security_ops->shm_associate(shp, shmflg);
1846 static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
1848 return security_ops->shm_shmctl (shp, cmd);
1851 static inline int security_shm_shmat (struct shmid_kernel * shp,
1852 char __user *shmaddr, int shmflg)
1854 return security_ops->shm_shmat(shp, shmaddr, shmflg);
1857 static inline int security_sem_alloc (struct sem_array *sma)
1859 return security_ops->sem_alloc_security (sma);
1862 static inline void security_sem_free (struct sem_array *sma)
1864 security_ops->sem_free_security (sma);
1867 static inline int security_sem_associate (struct sem_array * sma, int semflg)
1869 return security_ops->sem_associate (sma, semflg);
1872 static inline int security_sem_semctl (struct sem_array * sma, int cmd)
1874 return security_ops->sem_semctl(sma, cmd);
1877 static inline int security_sem_semop (struct sem_array * sma,
1878 struct sembuf * sops, unsigned nsops,
1881 return security_ops->sem_semop(sma, sops, nsops, alter);
1884 static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
1886 security_ops->d_instantiate (dentry, inode);
1889 static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
1891 return security_ops->getprocattr(p, name, value, size);
1894 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1896 return security_ops->setprocattr(p, name, value, size);
1899 static inline int security_netlink_send(struct sock *sk, struct sk_buff * skb)
1901 return security_ops->netlink_send(sk, skb);
1904 static inline int security_netlink_recv(struct sk_buff * skb)
1906 return security_ops->netlink_recv(skb);
1910 extern int security_init (void);
1911 extern int register_security (struct security_operations *ops);
1912 extern int unregister_security (struct security_operations *ops);
1913 extern int mod_reg_security (const char *name, struct security_operations *ops);
1914 extern int mod_unreg_security (const char *name, struct security_operations *ops);
1917 #else /* CONFIG_SECURITY */
1920 * This is the default capabilities functionality. Most of these functions
1921 * are just stubbed out, but a few must call the proper capable code.
1924 static inline int security_init(void)
1929 static inline int security_ptrace (struct task_struct *parent, struct task_struct * child)
1931 return cap_ptrace (parent, child);
1934 static inline int security_capget (struct task_struct *target,
1935 kernel_cap_t *effective,
1936 kernel_cap_t *inheritable,
1937 kernel_cap_t *permitted)
1939 return cap_capget (target, effective, inheritable, permitted);
1942 static inline int security_capset_check (struct task_struct *target,
1943 kernel_cap_t *effective,
1944 kernel_cap_t *inheritable,
1945 kernel_cap_t *permitted)
1947 return cap_capset_check (target, effective, inheritable, permitted);
1950 static inline void security_capset_set (struct task_struct *target,
1951 kernel_cap_t *effective,
1952 kernel_cap_t *inheritable,
1953 kernel_cap_t *permitted)
1955 cap_capset_set (target, effective, inheritable, permitted);
1958 static inline int security_acct (struct file *file)
1963 static inline int security_sysctl(struct ctl_table *table, int op)
1968 static inline int security_quotactl (int cmds, int type, int id,
1969 struct super_block * sb)
1974 static inline int security_quota_on (struct dentry * dentry)
1979 static inline int security_syslog(int type)
1981 return cap_syslog(type);
1984 static inline int security_settime(struct timespec *ts, struct timezone *tz)
1986 return cap_settime(ts, tz);
1989 static inline int security_vm_enough_memory(long pages)
1991 return cap_vm_enough_memory(pages);
1994 static inline int security_bprm_alloc (struct linux_binprm *bprm)
1999 static inline void security_bprm_free (struct linux_binprm *bprm)
2002 static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
2004 cap_bprm_apply_creds (bprm, unsafe);
2007 static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
2012 static inline int security_bprm_set (struct linux_binprm *bprm)
2014 return cap_bprm_set_security (bprm);
2017 static inline int security_bprm_check (struct linux_binprm *bprm)
2022 static inline int security_bprm_secureexec (struct linux_binprm *bprm)
2024 return cap_bprm_secureexec(bprm);
2027 static inline int security_sb_alloc (struct super_block *sb)
2032 static inline void security_sb_free (struct super_block *sb)
2035 static inline int security_sb_copy_data (struct file_system_type *type,
2036 void *orig, void *copy)
2041 static inline int security_sb_kern_mount (struct super_block *sb, void *data)
2046 static inline int security_sb_statfs (struct super_block *sb)
2051 static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
2052 char *type, unsigned long flags,
2058 static inline int security_sb_check_sb (struct vfsmount *mnt,
2059 struct nameidata *nd)
2064 static inline int security_sb_umount (struct vfsmount *mnt, int flags)
2069 static inline void security_sb_umount_close (struct vfsmount *mnt)
2072 static inline void security_sb_umount_busy (struct vfsmount *mnt)
2075 static inline void security_sb_post_remount (struct vfsmount *mnt,
2076 unsigned long flags, void *data)
2079 static inline void security_sb_post_mountroot (void)
2082 static inline void security_sb_post_addmount (struct vfsmount *mnt,
2083 struct nameidata *mountpoint_nd)
2086 static inline int security_sb_pivotroot (struct nameidata *old_nd,
2087 struct nameidata *new_nd)
2092 static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
2093 struct nameidata *new_nd)
2096 static inline int security_inode_alloc (struct inode *inode)
2101 static inline void security_inode_free (struct inode *inode)
2104 static inline int security_inode_create (struct inode *dir,
2105 struct dentry *dentry,
2111 static inline void security_inode_post_create (struct inode *dir,
2112 struct dentry *dentry,
2116 static inline int security_inode_link (struct dentry *old_dentry,
2118 struct dentry *new_dentry)
2123 static inline void security_inode_post_link (struct dentry *old_dentry,
2125 struct dentry *new_dentry)
2128 static inline int security_inode_unlink (struct inode *dir,
2129 struct dentry *dentry)
2134 static inline int security_inode_symlink (struct inode *dir,
2135 struct dentry *dentry,
2136 const char *old_name)
2141 static inline void security_inode_post_symlink (struct inode *dir,
2142 struct dentry *dentry,
2143 const char *old_name)
2146 static inline int security_inode_mkdir (struct inode *dir,
2147 struct dentry *dentry,
2153 static inline void security_inode_post_mkdir (struct inode *dir,
2154 struct dentry *dentry,
2158 static inline int security_inode_rmdir (struct inode *dir,
2159 struct dentry *dentry)
2164 static inline int security_inode_mknod (struct inode *dir,
2165 struct dentry *dentry,
2166 int mode, dev_t dev)
2171 static inline void security_inode_post_mknod (struct inode *dir,
2172 struct dentry *dentry,
2173 int mode, dev_t dev)
2176 static inline int security_inode_rename (struct inode *old_dir,
2177 struct dentry *old_dentry,
2178 struct inode *new_dir,
2179 struct dentry *new_dentry)
2184 static inline void security_inode_post_rename (struct inode *old_dir,
2185 struct dentry *old_dentry,
2186 struct inode *new_dir,
2187 struct dentry *new_dentry)
2190 static inline int security_inode_readlink (struct dentry *dentry)
2195 static inline int security_inode_follow_link (struct dentry *dentry,
2196 struct nameidata *nd)
2201 static inline int security_inode_permission (struct inode *inode, int mask,
2202 struct nameidata *nd)
2207 static inline int security_inode_setattr (struct dentry *dentry,
2213 static inline int security_inode_getattr (struct vfsmount *mnt,
2214 struct dentry *dentry)
2219 static inline void security_inode_delete (struct inode *inode)
2222 static inline int security_inode_setxattr (struct dentry *dentry, char *name,
2223 void *value, size_t size, int flags)
2225 return cap_inode_setxattr(dentry, name, value, size, flags);
2228 static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
2229 void *value, size_t size, int flags)
2232 static inline int security_inode_getxattr (struct dentry *dentry, char *name)
2237 static inline int security_inode_listxattr (struct dentry *dentry)
2242 static inline int security_inode_removexattr (struct dentry *dentry, char *name)
2244 return cap_inode_removexattr(dentry, name);
2247 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
2252 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2257 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2262 static inline int security_file_permission (struct file *file, int mask)
2267 static inline int security_file_alloc (struct file *file)
2272 static inline void security_file_free (struct file *file)
2275 static inline int security_file_ioctl (struct file *file, unsigned int cmd,
2281 static inline int security_file_mmap (struct file *file, unsigned long prot,
2282 unsigned long flags)
2287 static inline int security_file_mprotect (struct vm_area_struct *vma,
2293 static inline int security_file_lock (struct file *file, unsigned int cmd)
2298 static inline int security_file_fcntl (struct file *file, unsigned int cmd,
2304 static inline int security_file_set_fowner (struct file *file)
2309 static inline int security_file_send_sigiotask (struct task_struct *tsk,
2310 struct fown_struct *fown,
2316 static inline int security_file_receive (struct file *file)
2321 static inline int security_task_create (unsigned long clone_flags)
2326 static inline int security_task_alloc (struct task_struct *p)
2331 static inline void security_task_free (struct task_struct *p)
2334 static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
2340 static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
2341 uid_t old_suid, int flags)
2343 return cap_task_post_setuid (old_ruid, old_euid, old_suid, flags);
2346 static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
2352 static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
2357 static inline int security_task_getpgid (struct task_struct *p)
2362 static inline int security_task_getsid (struct task_struct *p)
2367 static inline int security_task_setgroups (struct group_info *group_info)
2372 static inline int security_task_setnice (struct task_struct *p, int nice)
2377 static inline int security_task_setrlimit (unsigned int resource,
2378 struct rlimit *new_rlim)
2383 static inline int security_task_setscheduler (struct task_struct *p,
2385 struct sched_param *lp)
2390 static inline int security_task_getscheduler (struct task_struct *p)
2395 static inline int security_task_kill (struct task_struct *p,
2396 struct siginfo *info, int sig)
2401 static inline int security_task_wait (struct task_struct *p)
2406 static inline int security_task_prctl (int option, unsigned long arg2,
2414 static inline void security_task_reparent_to_init (struct task_struct *p)
2416 cap_task_reparent_to_init (p);
2419 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2422 static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
2428 static inline int security_msg_msg_alloc (struct msg_msg * msg)
2433 static inline void security_msg_msg_free (struct msg_msg * msg)
2436 static inline int security_msg_queue_alloc (struct msg_queue *msq)
2441 static inline void security_msg_queue_free (struct msg_queue *msq)
2444 static inline int security_msg_queue_associate (struct msg_queue * msq,
2450 static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
2455 static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
2456 struct msg_msg * msg, int msqflg)
2461 static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
2462 struct msg_msg * msg,
2463 struct task_struct * target,
2464 long type, int mode)
2469 static inline int security_shm_alloc (struct shmid_kernel *shp)
2474 static inline void security_shm_free (struct shmid_kernel *shp)
2477 static inline int security_shm_associate (struct shmid_kernel * shp,
2483 static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
2488 static inline int security_shm_shmat (struct shmid_kernel * shp,
2489 char __user *shmaddr, int shmflg)
2494 static inline int security_sem_alloc (struct sem_array *sma)
2499 static inline void security_sem_free (struct sem_array *sma)
2502 static inline int security_sem_associate (struct sem_array * sma, int semflg)
2507 static inline int security_sem_semctl (struct sem_array * sma, int cmd)
2512 static inline int security_sem_semop (struct sem_array * sma,
2513 struct sembuf * sops, unsigned nsops,
2519 static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
2522 static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
2527 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2532 static inline int security_netlink_send (struct sock *sk, struct sk_buff *skb)
2534 return cap_netlink_send (sk, skb);
2537 static inline int security_netlink_recv (struct sk_buff *skb)
2539 return cap_netlink_recv (skb);
2542 #endif /* CONFIG_SECURITY */
2544 #ifdef CONFIG_SECURITY_NETWORK
2545 static inline int security_unix_stream_connect(struct socket * sock,
2546 struct socket * other,
2547 struct sock * newsk)
2549 return security_ops->unix_stream_connect(sock, other, newsk);
2553 static inline int security_unix_may_send(struct socket * sock,
2554 struct socket * other)
2556 return security_ops->unix_may_send(sock, other);
2559 static inline int security_socket_create (int family, int type,
2560 int protocol, int kern)
2562 return security_ops->socket_create(family, type, protocol, kern);
2565 static inline void security_socket_post_create(struct socket * sock,
2568 int protocol, int kern)
2570 security_ops->socket_post_create(sock, family, type,
2574 static inline int security_socket_bind(struct socket * sock,
2575 struct sockaddr * address,
2578 return security_ops->socket_bind(sock, address, addrlen);
2581 static inline int security_socket_connect(struct socket * sock,
2582 struct sockaddr * address,
2585 return security_ops->socket_connect(sock, address, addrlen);
2588 static inline int security_socket_listen(struct socket * sock, int backlog)
2590 return security_ops->socket_listen(sock, backlog);
2593 static inline int security_socket_accept(struct socket * sock,
2594 struct socket * newsock)
2596 return security_ops->socket_accept(sock, newsock);
2599 static inline void security_socket_post_accept(struct socket * sock,
2600 struct socket * newsock)
2602 security_ops->socket_post_accept(sock, newsock);
2605 static inline int security_socket_sendmsg(struct socket * sock,
2606 struct msghdr * msg, int size)
2608 return security_ops->socket_sendmsg(sock, msg, size);
2611 static inline int security_socket_recvmsg(struct socket * sock,
2612 struct msghdr * msg, int size,
2615 return security_ops->socket_recvmsg(sock, msg, size, flags);
2618 static inline int security_socket_getsockname(struct socket * sock)
2620 return security_ops->socket_getsockname(sock);
2623 static inline int security_socket_getpeername(struct socket * sock)
2625 return security_ops->socket_getpeername(sock);
2628 static inline int security_socket_getsockopt(struct socket * sock,
2629 int level, int optname)
2631 return security_ops->socket_getsockopt(sock, level, optname);
2634 static inline int security_socket_setsockopt(struct socket * sock,
2635 int level, int optname)
2637 return security_ops->socket_setsockopt(sock, level, optname);
2640 static inline int security_socket_shutdown(struct socket * sock, int how)
2642 return security_ops->socket_shutdown(sock, how);
2645 static inline int security_sock_rcv_skb (struct sock * sk,
2646 struct sk_buff * skb)
2648 return security_ops->socket_sock_rcv_skb (sk, skb);
2651 static inline int security_socket_getpeersec(struct socket *sock, char __user *optval,
2652 int __user *optlen, unsigned len)
2654 return security_ops->socket_getpeersec(sock, optval, optlen, len);
2657 static inline int security_sk_alloc(struct sock *sk, int family, int priority)
2659 return security_ops->sk_alloc_security(sk, family, priority);
2662 static inline void security_sk_free(struct sock *sk)
2664 return security_ops->sk_free_security(sk);
2666 #else /* CONFIG_SECURITY_NETWORK */
2667 static inline int security_unix_stream_connect(struct socket * sock,
2668 struct socket * other,
2669 struct sock * newsk)
2674 static inline int security_unix_may_send(struct socket * sock,
2675 struct socket * other)
2680 static inline int security_socket_create (int family, int type,
2681 int protocol, int kern)
2686 static inline void security_socket_post_create(struct socket * sock,
2689 int protocol, int kern)
2693 static inline int security_socket_bind(struct socket * sock,
2694 struct sockaddr * address,
2700 static inline int security_socket_connect(struct socket * sock,
2701 struct sockaddr * address,
2707 static inline int security_socket_listen(struct socket * sock, int backlog)
2712 static inline int security_socket_accept(struct socket * sock,
2713 struct socket * newsock)
2718 static inline void security_socket_post_accept(struct socket * sock,
2719 struct socket * newsock)
2723 static inline int security_socket_sendmsg(struct socket * sock,
2724 struct msghdr * msg, int size)
2729 static inline int security_socket_recvmsg(struct socket * sock,
2730 struct msghdr * msg, int size,
2736 static inline int security_socket_getsockname(struct socket * sock)
2741 static inline int security_socket_getpeername(struct socket * sock)
2746 static inline int security_socket_getsockopt(struct socket * sock,
2747 int level, int optname)
2752 static inline int security_socket_setsockopt(struct socket * sock,
2753 int level, int optname)
2758 static inline int security_socket_shutdown(struct socket * sock, int how)
2762 static inline int security_sock_rcv_skb (struct sock * sk,
2763 struct sk_buff * skb)
2768 static inline int security_socket_getpeersec(struct socket *sock, char __user *optval,
2769 int __user *optlen, unsigned len)
2771 return -ENOPROTOOPT;
2774 static inline int security_sk_alloc(struct sock *sk, int family, int priority)
2779 static inline void security_sk_free(struct sock *sk)
2782 #endif /* CONFIG_SECURITY_NETWORK */
2784 #endif /* ! __LINUX_SECURITY_H */