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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Linux Security plug
3 *
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)
9 *
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.
14 *
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.
19 *
20 */
21
22#ifndef __LINUX_SECURITY_H
23#define __LINUX_SECURITY_H
24
25#include <linux/fs.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>
David Howells29db9192005-10-30 15:02:44 -080033#include <linux/key.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
35struct ctl_table;
36
37/*
38 * These functions are in security/capability.c and are used
39 * as the default capabilities functions
40 */
41extern int cap_capable (struct task_struct *tsk, int cap);
42extern int cap_settime (struct timespec *ts, struct timezone *tz);
43extern int cap_ptrace (struct task_struct *parent, struct task_struct *child);
44extern int cap_capget (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
45extern int cap_capset_check (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
46extern void cap_capset_set (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
47extern int cap_bprm_set_security (struct linux_binprm *bprm);
48extern void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe);
49extern int cap_bprm_secureexec(struct linux_binprm *bprm);
50extern int cap_inode_setxattr(struct dentry *dentry, char *name, void *value, size_t size, int flags);
51extern int cap_inode_removexattr(struct dentry *dentry, char *name);
52extern int cap_task_post_setuid (uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags);
53extern void cap_task_reparent_to_init (struct task_struct *p);
54extern int cap_syslog (int type);
55extern int cap_vm_enough_memory (long pages);
56
57struct msghdr;
58struct sk_buff;
59struct sock;
60struct sockaddr;
61struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -080062struct flowi;
63struct dst_entry;
64struct xfrm_selector;
65struct xfrm_policy;
66struct xfrm_state;
67struct xfrm_user_sec_ctx;
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
69extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
70extern int cap_netlink_recv(struct sk_buff *skb);
71
72/*
73 * Values used in the task_security_ops calls
74 */
75/* setuid or setgid, id0 == uid or gid */
76#define LSM_SETID_ID 1
77
78/* setreuid or setregid, id0 == real, id1 == eff */
79#define LSM_SETID_RE 2
80
81/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
82#define LSM_SETID_RES 4
83
84/* setfsuid or setfsgid, id0 == fsuid or fsgid */
85#define LSM_SETID_FS 8
86
87/* forward declares to avoid warnings */
88struct nfsctl_arg;
89struct sched_param;
90struct swap_info_struct;
91
92/* bprm_apply_creds unsafe reasons */
93#define LSM_UNSAFE_SHARE 1
94#define LSM_UNSAFE_PTRACE 2
95#define LSM_UNSAFE_PTRACE_CAP 4
96
97#ifdef CONFIG_SECURITY
98
99/**
100 * struct security_operations - main security structure
101 *
102 * Security hooks for program execution operations.
103 *
104 * @bprm_alloc_security:
105 * Allocate and attach a security structure to the @bprm->security field.
106 * The security field is initialized to NULL when the bprm structure is
107 * allocated.
108 * @bprm contains the linux_binprm structure to be modified.
109 * Return 0 if operation was successful.
110 * @bprm_free_security:
111 * @bprm contains the linux_binprm structure to be modified.
112 * Deallocate and clear the @bprm->security field.
113 * @bprm_apply_creds:
114 * Compute and set the security attributes of a process being transformed
115 * by an execve operation based on the old attributes (current->security)
116 * and the information saved in @bprm->security by the set_security hook.
117 * Since this hook function (and its caller) are void, this hook can not
118 * return an error. However, it can leave the security attributes of the
119 * process unchanged if an access failure occurs at this point.
120 * bprm_apply_creds is called under task_lock. @unsafe indicates various
121 * reasons why it may be unsafe to change security state.
122 * @bprm contains the linux_binprm structure.
123 * @bprm_post_apply_creds:
124 * Runs after bprm_apply_creds with the task_lock dropped, so that
125 * functions which cannot be called safely under the task_lock can
126 * be used. This hook is a good place to perform state changes on
127 * the process such as closing open file descriptors to which access
128 * is no longer granted if the attributes were changed.
129 * Note that a security module might need to save state between
130 * bprm_apply_creds and bprm_post_apply_creds to store the decision
131 * on whether the process may proceed.
132 * @bprm contains the linux_binprm structure.
133 * @bprm_set_security:
134 * Save security information in the bprm->security field, typically based
135 * on information about the bprm->file, for later use by the apply_creds
136 * hook. This hook may also optionally check permissions (e.g. for
137 * transitions between security domains).
138 * This hook may be called multiple times during a single execve, e.g. for
139 * interpreters. The hook can tell whether it has already been called by
140 * checking to see if @bprm->security is non-NULL. If so, then the hook
141 * may decide either to retain the security information saved earlier or
142 * to replace it.
143 * @bprm contains the linux_binprm structure.
144 * Return 0 if the hook is successful and permission is granted.
145 * @bprm_check_security:
146 * This hook mediates the point when a search for a binary handler will
147 * begin. It allows a check the @bprm->security value which is set in
148 * the preceding set_security call. The primary difference from
149 * set_security is that the argv list and envp list are reliably
150 * available in @bprm. This hook may be called multiple times
151 * during a single execve; and in each pass set_security is called
152 * first.
153 * @bprm contains the linux_binprm structure.
154 * Return 0 if the hook is successful and permission is granted.
155 * @bprm_secureexec:
156 * Return a boolean value (0 or 1) indicating whether a "secure exec"
157 * is required. The flag is passed in the auxiliary table
158 * on the initial stack to the ELF interpreter to indicate whether libc
159 * should enable secure mode.
160 * @bprm contains the linux_binprm structure.
161 *
162 * Security hooks for filesystem operations.
163 *
164 * @sb_alloc_security:
165 * Allocate and attach a security structure to the sb->s_security field.
166 * The s_security field is initialized to NULL when the structure is
167 * allocated.
168 * @sb contains the super_block structure to be modified.
169 * Return 0 if operation was successful.
170 * @sb_free_security:
171 * Deallocate and clear the sb->s_security field.
172 * @sb contains the super_block structure to be modified.
173 * @sb_statfs:
174 * Check permission before obtaining filesystem statistics for the @sb
175 * filesystem.
176 * @sb contains the super_block structure for the filesystem.
177 * Return 0 if permission is granted.
178 * @sb_mount:
179 * Check permission before an object specified by @dev_name is mounted on
180 * the mount point named by @nd. For an ordinary mount, @dev_name
181 * identifies a device if the file system type requires a device. For a
182 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
183 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
184 * pathname of the object being mounted.
185 * @dev_name contains the name for object being mounted.
186 * @nd contains the nameidata structure for mount point object.
187 * @type contains the filesystem type.
188 * @flags contains the mount flags.
189 * @data contains the filesystem-specific data.
190 * Return 0 if permission is granted.
191 * @sb_copy_data:
192 * Allow mount option data to be copied prior to parsing by the filesystem,
193 * so that the security module can extract security-specific mount
194 * options cleanly (a filesystem may modify the data e.g. with strsep()).
195 * This also allows the original mount data to be stripped of security-
196 * specific options to avoid having to make filesystems aware of them.
197 * @type the type of filesystem being mounted.
198 * @orig the original mount data copied from userspace.
199 * @copy copied data which will be passed to the security module.
200 * Returns 0 if the copy was successful.
201 * @sb_check_sb:
202 * Check permission before the device with superblock @mnt->sb is mounted
203 * on the mount point named by @nd.
204 * @mnt contains the vfsmount for device being mounted.
205 * @nd contains the nameidata object for the mount point.
206 * Return 0 if permission is granted.
207 * @sb_umount:
208 * Check permission before the @mnt file system is unmounted.
209 * @mnt contains the mounted file system.
210 * @flags contains the unmount flags, e.g. MNT_FORCE.
211 * Return 0 if permission is granted.
212 * @sb_umount_close:
213 * Close any files in the @mnt mounted filesystem that are held open by
214 * the security module. This hook is called during an umount operation
215 * prior to checking whether the filesystem is still busy.
216 * @mnt contains the mounted filesystem.
217 * @sb_umount_busy:
218 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
219 * any files that were closed by umount_close. This hook is called during
220 * an umount operation if the umount fails after a call to the
221 * umount_close hook.
222 * @mnt contains the mounted filesystem.
223 * @sb_post_remount:
224 * Update the security module's state when a filesystem is remounted.
225 * This hook is only called if the remount was successful.
226 * @mnt contains the mounted file system.
227 * @flags contains the new filesystem flags.
228 * @data contains the filesystem-specific data.
229 * @sb_post_mountroot:
230 * Update the security module's state when the root filesystem is mounted.
231 * This hook is only called if the mount was successful.
232 * @sb_post_addmount:
233 * Update the security module's state when a filesystem is mounted.
234 * This hook is called any time a mount is successfully grafetd to
235 * the tree.
236 * @mnt contains the mounted filesystem.
237 * @mountpoint_nd contains the nameidata structure for the mount point.
238 * @sb_pivotroot:
239 * Check permission before pivoting the root filesystem.
240 * @old_nd contains the nameidata structure for the new location of the current root (put_old).
241 * @new_nd contains the nameidata structure for the new root (new_root).
242 * Return 0 if permission is granted.
243 * @sb_post_pivotroot:
244 * Update module state after a successful pivot.
245 * @old_nd contains the nameidata structure for the old root.
246 * @new_nd contains the nameidata structure for the new root.
247 *
248 * Security hooks for inode operations.
249 *
250 * @inode_alloc_security:
251 * Allocate and attach a security structure to @inode->i_security. The
252 * i_security field is initialized to NULL when the inode structure is
253 * allocated.
254 * @inode contains the inode structure.
255 * Return 0 if operation was successful.
256 * @inode_free_security:
257 * @inode contains the inode structure.
258 * Deallocate the inode security structure and set @inode->i_security to
259 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700260 * @inode_init_security:
261 * Obtain the security attribute name suffix and value to set on a newly
262 * created inode and set up the incore security field for the new inode.
263 * This hook is called by the fs code as part of the inode creation
264 * transaction and provides for atomic labeling of the inode, unlike
265 * the post_create/mkdir/... hooks called by the VFS. The hook function
266 * is expected to allocate the name and value via kmalloc, with the caller
267 * being responsible for calling kfree after using them.
268 * If the security module does not use security attributes or does
269 * not wish to put a security attribute on this particular inode,
270 * then it should return -EOPNOTSUPP to skip this processing.
271 * @inode contains the inode structure of the newly created inode.
272 * @dir contains the inode structure of the parent directory.
273 * @name will be set to the allocated name suffix (e.g. selinux).
274 * @value will be set to the allocated attribute value.
275 * @len will be set to the length of the value.
276 * Returns 0 if @name and @value have been successfully set,
277 * -EOPNOTSUPP if no security attribute is needed, or
278 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 * @inode_create:
280 * Check permission to create a regular file.
281 * @dir contains inode structure of the parent of the new file.
282 * @dentry contains the dentry structure for the file to be created.
283 * @mode contains the file mode of the file to be created.
284 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 * @inode_link:
286 * Check permission before creating a new hard link to a file.
287 * @old_dentry contains the dentry structure for an existing link to the file.
288 * @dir contains the inode structure of the parent directory of the new link.
289 * @new_dentry contains the dentry structure for the new link.
290 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 * @inode_unlink:
292 * Check the permission to remove a hard link to a file.
293 * @dir contains the inode structure of parent directory of the file.
294 * @dentry contains the dentry structure for file to be unlinked.
295 * Return 0 if permission is granted.
296 * @inode_symlink:
297 * Check the permission to create a symbolic link to a file.
298 * @dir contains the inode structure of parent directory of the symbolic link.
299 * @dentry contains the dentry structure of the symbolic link.
300 * @old_name contains the pathname of file.
301 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 * @inode_mkdir:
303 * Check permissions to create a new directory in the existing directory
304 * associated with inode strcture @dir.
305 * @dir containst the inode structure of parent of the directory to be created.
306 * @dentry contains the dentry structure of new directory.
307 * @mode contains the mode of new directory.
308 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 * @inode_rmdir:
310 * Check the permission to remove a directory.
311 * @dir contains the inode structure of parent of the directory to be removed.
312 * @dentry contains the dentry structure of directory to be removed.
313 * Return 0 if permission is granted.
314 * @inode_mknod:
315 * Check permissions when creating a special file (or a socket or a fifo
316 * file created via the mknod system call). Note that if mknod operation
317 * is being done for a regular file, then the create hook will be called
318 * and not this hook.
319 * @dir contains the inode structure of parent of the new file.
320 * @dentry contains the dentry structure of the new file.
321 * @mode contains the mode of the new file.
322 * @dev contains the the device number.
323 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 * @inode_rename:
325 * Check for permission to rename a file or directory.
326 * @old_dir contains the inode structure for parent of the old link.
327 * @old_dentry contains the dentry structure of the old link.
328 * @new_dir contains the inode structure for parent of the new link.
329 * @new_dentry contains the dentry structure of the new link.
330 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 * @inode_readlink:
332 * Check the permission to read the symbolic link.
333 * @dentry contains the dentry structure for the file link.
334 * Return 0 if permission is granted.
335 * @inode_follow_link:
336 * Check permission to follow a symbolic link when looking up a pathname.
337 * @dentry contains the dentry structure for the link.
338 * @nd contains the nameidata structure for the parent directory.
339 * Return 0 if permission is granted.
340 * @inode_permission:
341 * Check permission before accessing an inode. This hook is called by the
342 * existing Linux permission function, so a security module can use it to
343 * provide additional checking for existing Linux permission checks.
344 * Notice that this hook is called when a file is opened (as well as many
345 * other operations), whereas the file_security_ops permission hook is
346 * called when the actual read/write operations are performed.
347 * @inode contains the inode structure to check.
348 * @mask contains the permission mask.
349 * @nd contains the nameidata (may be NULL).
350 * Return 0 if permission is granted.
351 * @inode_setattr:
352 * Check permission before setting file attributes. Note that the kernel
353 * call to notify_change is performed from several locations, whenever
354 * file attributes change (such as when a file is truncated, chown/chmod
355 * operations, transferring disk quotas, etc).
356 * @dentry contains the dentry structure for the file.
357 * @attr is the iattr structure containing the new file attributes.
358 * Return 0 if permission is granted.
359 * @inode_getattr:
360 * Check permission before obtaining file attributes.
361 * @mnt is the vfsmount where the dentry was looked up
362 * @dentry contains the dentry structure for the file.
363 * Return 0 if permission is granted.
364 * @inode_delete:
365 * @inode contains the inode structure for deleted inode.
366 * This hook is called when a deleted inode is released (i.e. an inode
367 * with no hard links has its use count drop to zero). A security module
368 * can use this hook to release any persistent label associated with the
369 * inode.
370 * @inode_setxattr:
371 * Check permission before setting the extended attributes
372 * @value identified by @name for @dentry.
373 * Return 0 if permission is granted.
374 * @inode_post_setxattr:
375 * Update inode security field after successful setxattr operation.
376 * @value identified by @name for @dentry.
377 * @inode_getxattr:
378 * Check permission before obtaining the extended attributes
379 * identified by @name for @dentry.
380 * Return 0 if permission is granted.
381 * @inode_listxattr:
382 * Check permission before obtaining the list of extended attribute
383 * names for @dentry.
384 * Return 0 if permission is granted.
385 * @inode_removexattr:
386 * Check permission before removing the extended attribute
387 * identified by @name for @dentry.
388 * Return 0 if permission is granted.
389 * @inode_getsecurity:
390 * Copy the extended attribute representation of the security label
391 * associated with @name for @inode into @buffer. @buffer may be
392 * NULL to request the size of the buffer required. @size indicates
393 * the size of @buffer in bytes. Note that @name is the remainder
394 * of the attribute name after the security. prefix has been removed.
James Morrisd381d8a2005-10-30 14:59:22 -0800395 * @err is the return value from the preceding fs getxattr call,
396 * and can be used by the security module to determine whether it
397 * should try and canonicalize the attribute value.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 * Return number of bytes used/required on success.
399 * @inode_setsecurity:
400 * Set the security label associated with @name for @inode from the
401 * extended attribute value @value. @size indicates the size of the
402 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
403 * Note that @name is the remainder of the attribute name after the
404 * security. prefix has been removed.
405 * Return 0 on success.
406 * @inode_listsecurity:
407 * Copy the extended attribute names for the security labels
408 * associated with @inode into @buffer. The maximum size of @buffer
409 * is specified by @buffer_size. @buffer may be NULL to request
410 * the size of the buffer required.
411 * Returns number of bytes used/required on success.
412 *
413 * Security hooks for file operations
414 *
415 * @file_permission:
416 * Check file permissions before accessing an open file. This hook is
417 * called by various operations that read or write files. A security
418 * module can use this hook to perform additional checking on these
419 * operations, e.g. to revalidate permissions on use to support privilege
420 * bracketing or policy changes. Notice that this hook is used when the
421 * actual read/write operations are performed, whereas the
422 * inode_security_ops hook is called when a file is opened (as well as
423 * many other operations).
424 * Caveat: Although this hook can be used to revalidate permissions for
425 * various system call operations that read or write files, it does not
426 * address the revalidation of permissions for memory-mapped files.
427 * Security modules must handle this separately if they need such
428 * revalidation.
429 * @file contains the file structure being accessed.
430 * @mask contains the requested permissions.
431 * Return 0 if permission is granted.
432 * @file_alloc_security:
433 * Allocate and attach a security structure to the file->f_security field.
434 * The security field is initialized to NULL when the structure is first
435 * created.
436 * @file contains the file structure to secure.
437 * Return 0 if the hook is successful and permission is granted.
438 * @file_free_security:
439 * Deallocate and free any security structures stored in file->f_security.
440 * @file contains the file structure being modified.
441 * @file_ioctl:
442 * @file contains the file structure.
443 * @cmd contains the operation to perform.
444 * @arg contains the operational arguments.
445 * Check permission for an ioctl operation on @file. Note that @arg can
446 * sometimes represents a user space pointer; in other cases, it may be a
447 * simple integer value. When @arg represents a user space pointer, it
448 * should never be used by the security module.
449 * Return 0 if permission is granted.
450 * @file_mmap :
451 * Check permissions for a mmap operation. The @file may be NULL, e.g.
452 * if mapping anonymous memory.
453 * @file contains the file structure for file to map (may be NULL).
454 * @reqprot contains the protection requested by the application.
455 * @prot contains the protection that will be applied by the kernel.
456 * @flags contains the operational flags.
457 * Return 0 if permission is granted.
458 * @file_mprotect:
459 * Check permissions before changing memory access permissions.
460 * @vma contains the memory region to modify.
461 * @reqprot contains the protection requested by the application.
462 * @prot contains the protection that will be applied by the kernel.
463 * Return 0 if permission is granted.
464 * @file_lock:
465 * Check permission before performing file locking operations.
466 * Note: this hook mediates both flock and fcntl style locks.
467 * @file contains the file structure.
468 * @cmd contains the posix-translated lock operation to perform
469 * (e.g. F_RDLCK, F_WRLCK).
470 * Return 0 if permission is granted.
471 * @file_fcntl:
472 * Check permission before allowing the file operation specified by @cmd
473 * from being performed on the file @file. Note that @arg can sometimes
474 * represents a user space pointer; in other cases, it may be a simple
475 * integer value. When @arg represents a user space pointer, it should
476 * never be used by the security module.
477 * @file contains the file structure.
478 * @cmd contains the operation to be performed.
479 * @arg contains the operational arguments.
480 * Return 0 if permission is granted.
481 * @file_set_fowner:
482 * Save owner security information (typically from current->security) in
483 * file->f_security for later use by the send_sigiotask hook.
484 * @file contains the file structure to update.
485 * Return 0 on success.
486 * @file_send_sigiotask:
487 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
488 * process @tsk. Note that this hook is sometimes called from interrupt.
489 * Note that the fown_struct, @fown, is never outside the context of a
490 * struct file, so the file structure (and associated security information)
491 * can always be obtained:
492 * (struct file *)((long)fown - offsetof(struct file,f_owner));
493 * @tsk contains the structure of task receiving signal.
494 * @fown contains the file owner information.
495 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
496 * Return 0 if permission is granted.
497 * @file_receive:
498 * This hook allows security modules to control the ability of a process
499 * to receive an open file descriptor via socket IPC.
500 * @file contains the file structure being received.
501 * Return 0 if permission is granted.
502 *
503 * Security hooks for task operations.
504 *
505 * @task_create:
506 * Check permission before creating a child process. See the clone(2)
507 * manual page for definitions of the @clone_flags.
508 * @clone_flags contains the flags indicating what should be shared.
509 * Return 0 if permission is granted.
510 * @task_alloc_security:
511 * @p contains the task_struct for child process.
512 * Allocate and attach a security structure to the p->security field. The
513 * security field is initialized to NULL when the task structure is
514 * allocated.
515 * Return 0 if operation was successful.
516 * @task_free_security:
517 * @p contains the task_struct for process.
518 * Deallocate and clear the p->security field.
519 * @task_setuid:
520 * Check permission before setting one or more of the user identity
521 * attributes of the current process. The @flags parameter indicates
522 * which of the set*uid system calls invoked this hook and how to
523 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
524 * definitions at the beginning of this file for the @flags values and
525 * their meanings.
526 * @id0 contains a uid.
527 * @id1 contains a uid.
528 * @id2 contains a uid.
529 * @flags contains one of the LSM_SETID_* values.
530 * Return 0 if permission is granted.
531 * @task_post_setuid:
532 * Update the module's state after setting one or more of the user
533 * identity attributes of the current process. The @flags parameter
534 * indicates which of the set*uid system calls invoked this hook. If
535 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
536 * parameters are not used.
537 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
538 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
539 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
540 * @flags contains one of the LSM_SETID_* values.
541 * Return 0 on success.
542 * @task_setgid:
543 * Check permission before setting one or more of the group identity
544 * attributes of the current process. The @flags parameter indicates
545 * which of the set*gid system calls invoked this hook and how to
546 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
547 * definitions at the beginning of this file for the @flags values and
548 * their meanings.
549 * @id0 contains a gid.
550 * @id1 contains a gid.
551 * @id2 contains a gid.
552 * @flags contains one of the LSM_SETID_* values.
553 * Return 0 if permission is granted.
554 * @task_setpgid:
555 * Check permission before setting the process group identifier of the
556 * process @p to @pgid.
557 * @p contains the task_struct for process being modified.
558 * @pgid contains the new pgid.
559 * Return 0 if permission is granted.
560 * @task_getpgid:
561 * Check permission before getting the process group identifier of the
562 * process @p.
563 * @p contains the task_struct for the process.
564 * Return 0 if permission is granted.
565 * @task_getsid:
566 * Check permission before getting the session identifier of the process
567 * @p.
568 * @p contains the task_struct for the process.
569 * Return 0 if permission is granted.
570 * @task_setgroups:
571 * Check permission before setting the supplementary group set of the
572 * current process.
573 * @group_info contains the new group information.
574 * Return 0 if permission is granted.
575 * @task_setnice:
576 * Check permission before setting the nice value of @p to @nice.
577 * @p contains the task_struct of process.
578 * @nice contains the new nice value.
579 * Return 0 if permission is granted.
580 * @task_setrlimit:
581 * Check permission before setting the resource limits of the current
582 * process for @resource to @new_rlim. The old resource limit values can
583 * be examined by dereferencing (current->signal->rlim + resource).
584 * @resource contains the resource whose limit is being set.
585 * @new_rlim contains the new limits for @resource.
586 * Return 0 if permission is granted.
587 * @task_setscheduler:
588 * Check permission before setting scheduling policy and/or parameters of
589 * process @p based on @policy and @lp.
590 * @p contains the task_struct for process.
591 * @policy contains the scheduling policy.
592 * @lp contains the scheduling parameters.
593 * Return 0 if permission is granted.
594 * @task_getscheduler:
595 * Check permission before obtaining scheduling information for process
596 * @p.
597 * @p contains the task_struct for process.
598 * Return 0 if permission is granted.
599 * @task_kill:
600 * Check permission before sending signal @sig to @p. @info can be NULL,
601 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
602 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
603 * from the kernel and should typically be permitted.
604 * SIGIO signals are handled separately by the send_sigiotask hook in
605 * file_security_ops.
606 * @p contains the task_struct for process.
607 * @info contains the signal information.
608 * @sig contains the signal value.
609 * Return 0 if permission is granted.
610 * @task_wait:
611 * Check permission before allowing a process to reap a child process @p
612 * and collect its status information.
613 * @p contains the task_struct for process.
614 * Return 0 if permission is granted.
615 * @task_prctl:
616 * Check permission before performing a process control operation on the
617 * current process.
618 * @option contains the operation.
619 * @arg2 contains a argument.
620 * @arg3 contains a argument.
621 * @arg4 contains a argument.
622 * @arg5 contains a argument.
623 * Return 0 if permission is granted.
624 * @task_reparent_to_init:
625 * Set the security attributes in @p->security for a kernel thread that
626 * is being reparented to the init task.
627 * @p contains the task_struct for the kernel thread.
628 * @task_to_inode:
629 * Set the security attributes for an inode based on an associated task's
630 * security attributes, e.g. for /proc/pid inodes.
631 * @p contains the task_struct for the task.
632 * @inode contains the inode structure for the inode.
633 *
634 * Security hooks for Netlink messaging.
635 *
636 * @netlink_send:
637 * Save security information for a netlink message so that permission
638 * checking can be performed when the message is processed. The security
639 * information can be saved using the eff_cap field of the
640 * netlink_skb_parms structure. Also may be used to provide fine
641 * grained control over message transmission.
642 * @sk associated sock of task sending the message.,
643 * @skb contains the sk_buff structure for the netlink message.
644 * Return 0 if the information was successfully saved and message
645 * is allowed to be transmitted.
646 * @netlink_recv:
647 * Check permission before processing the received netlink message in
648 * @skb.
649 * @skb contains the sk_buff structure for the netlink message.
650 * Return 0 if permission is granted.
651 *
652 * Security hooks for Unix domain networking.
653 *
654 * @unix_stream_connect:
655 * Check permissions before establishing a Unix domain stream connection
656 * between @sock and @other.
657 * @sock contains the socket structure.
658 * @other contains the peer socket structure.
659 * Return 0 if permission is granted.
660 * @unix_may_send:
661 * Check permissions before connecting or sending datagrams from @sock to
662 * @other.
663 * @sock contains the socket structure.
664 * @sock contains the peer socket structure.
665 * Return 0 if permission is granted.
666 *
667 * The @unix_stream_connect and @unix_may_send hooks were necessary because
668 * Linux provides an alternative to the conventional file name space for Unix
669 * domain sockets. Whereas binding and connecting to sockets in the file name
670 * space is mediated by the typical file permissions (and caught by the mknod
671 * and permission hooks in inode_security_ops), binding and connecting to
672 * sockets in the abstract name space is completely unmediated. Sufficient
673 * control of Unix domain sockets in the abstract name space isn't possible
674 * using only the socket layer hooks, since we need to know the actual target
675 * socket, which is not looked up until we are inside the af_unix code.
676 *
677 * Security hooks for socket operations.
678 *
679 * @socket_create:
680 * Check permissions prior to creating a new socket.
681 * @family contains the requested protocol family.
682 * @type contains the requested communications type.
683 * @protocol contains the requested protocol.
684 * @kern set to 1 if a kernel socket.
685 * Return 0 if permission is granted.
686 * @socket_post_create:
687 * This hook allows a module to update or allocate a per-socket security
688 * structure. Note that the security field was not added directly to the
689 * socket structure, but rather, the socket security information is stored
690 * in the associated inode. Typically, the inode alloc_security hook will
691 * allocate and and attach security information to
692 * sock->inode->i_security. This hook may be used to update the
693 * sock->inode->i_security field with additional information that wasn't
694 * available when the inode was allocated.
695 * @sock contains the newly created socket structure.
696 * @family contains the requested protocol family.
697 * @type contains the requested communications type.
698 * @protocol contains the requested protocol.
699 * @kern set to 1 if a kernel socket.
700 * @socket_bind:
701 * Check permission before socket protocol layer bind operation is
702 * performed and the socket @sock is bound to the address specified in the
703 * @address parameter.
704 * @sock contains the socket structure.
705 * @address contains the address to bind to.
706 * @addrlen contains the length of address.
707 * Return 0 if permission is granted.
708 * @socket_connect:
709 * Check permission before socket protocol layer connect operation
710 * attempts to connect socket @sock to a remote address, @address.
711 * @sock contains the socket structure.
712 * @address contains the address of remote endpoint.
713 * @addrlen contains the length of address.
714 * Return 0 if permission is granted.
715 * @socket_listen:
716 * Check permission before socket protocol layer listen operation.
717 * @sock contains the socket structure.
718 * @backlog contains the maximum length for the pending connection queue.
719 * Return 0 if permission is granted.
720 * @socket_accept:
721 * Check permission before accepting a new connection. Note that the new
722 * socket, @newsock, has been created and some information copied to it,
723 * but the accept operation has not actually been performed.
724 * @sock contains the listening socket structure.
725 * @newsock contains the newly created server socket for connection.
726 * Return 0 if permission is granted.
727 * @socket_post_accept:
728 * This hook allows a security module to copy security
729 * information into the newly created socket's inode.
730 * @sock contains the listening socket structure.
731 * @newsock contains the newly created server socket for connection.
732 * @socket_sendmsg:
733 * Check permission before transmitting a message to another socket.
734 * @sock contains the socket structure.
735 * @msg contains the message to be transmitted.
736 * @size contains the size of message.
737 * Return 0 if permission is granted.
738 * @socket_recvmsg:
739 * Check permission before receiving a message from a socket.
740 * @sock contains the socket structure.
741 * @msg contains the message structure.
742 * @size contains the size of message structure.
743 * @flags contains the operational flags.
744 * Return 0 if permission is granted.
745 * @socket_getsockname:
746 * Check permission before the local address (name) of the socket object
747 * @sock is retrieved.
748 * @sock contains the socket structure.
749 * Return 0 if permission is granted.
750 * @socket_getpeername:
751 * Check permission before the remote address (name) of a socket object
752 * @sock is retrieved.
753 * @sock contains the socket structure.
754 * Return 0 if permission is granted.
755 * @socket_getsockopt:
756 * Check permissions before retrieving the options associated with socket
757 * @sock.
758 * @sock contains the socket structure.
759 * @level contains the protocol level to retrieve option from.
760 * @optname contains the name of option to retrieve.
761 * Return 0 if permission is granted.
762 * @socket_setsockopt:
763 * Check permissions before setting the options associated with socket
764 * @sock.
765 * @sock contains the socket structure.
766 * @level contains the protocol level to set options for.
767 * @optname contains the name of the option to set.
768 * Return 0 if permission is granted.
769 * @socket_shutdown:
770 * Checks permission before all or part of a connection on the socket
771 * @sock is shut down.
772 * @sock contains the socket structure.
773 * @how contains the flag indicating how future sends and receives are handled.
774 * Return 0 if permission is granted.
775 * @socket_sock_rcv_skb:
776 * Check permissions on incoming network packets. This hook is distinct
777 * from Netfilter's IP input hooks since it is the first time that the
778 * incoming sk_buff @skb has been associated with a particular socket, @sk.
779 * @sk contains the sock (not socket) associated with the incoming sk_buff.
780 * @skb contains the incoming network data.
781 * @socket_getpeersec:
782 * This hook allows the security module to provide peer socket security
783 * state to userspace via getsockopt SO_GETPEERSEC.
784 * @sock is the local socket.
785 * @optval userspace memory where the security state is to be copied.
786 * @optlen userspace int where the module should copy the actual length
787 * of the security state.
788 * @len as input is the maximum length to copy to userspace provided
789 * by the caller.
790 * Return 0 if all is well, otherwise, typical getsockopt return
791 * values.
792 * @sk_alloc_security:
793 * Allocate and attach a security structure to the sk->sk_security field,
794 * which is used to copy security attributes between local stream sockets.
795 * @sk_free_security:
796 * Deallocate security structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800797 * @sk_getsid:
798 * Retrieve the LSM-specific sid for the sock to enable caching of network
799 * authorizations.
800 *
801 * Security hooks for XFRM operations.
802 *
803 * @xfrm_policy_alloc_security:
804 * @xp contains the xfrm_policy being added to Security Policy Database
805 * used by the XFRM system.
806 * @sec_ctx contains the security context information being provided by
807 * the user-level policy update program (e.g., setkey).
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700808 * Allocate a security structure to the xp->security field.
Trent Jaegerdf718372005-12-13 23:12:27 -0800809 * The security field is initialized to NULL when the xfrm_policy is
810 * allocated.
811 * Return 0 if operation was successful (memory to allocate, legal context)
812 * @xfrm_policy_clone_security:
813 * @old contains an existing xfrm_policy in the SPD.
814 * @new contains a new xfrm_policy being cloned from old.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700815 * Allocate a security structure to the new->security field
816 * that contains the information from the old->security field.
Trent Jaegerdf718372005-12-13 23:12:27 -0800817 * Return 0 if operation was successful (memory to allocate).
818 * @xfrm_policy_free_security:
819 * @xp contains the xfrm_policy
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700820 * Deallocate xp->security.
821 * @xfrm_policy_delete_security:
822 * @xp contains the xfrm_policy.
823 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800824 * @xfrm_state_alloc_security:
825 * @x contains the xfrm_state being added to the Security Association
826 * Database by the XFRM system.
827 * @sec_ctx contains the security context information being provided by
828 * the user-level SA generation program (e.g., setkey or racoon).
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700829 * Allocate a security structure to the x->security field. The
Trent Jaegerdf718372005-12-13 23:12:27 -0800830 * security field is initialized to NULL when the xfrm_state is
831 * allocated.
832 * Return 0 if operation was successful (memory to allocate, legal context).
833 * @xfrm_state_free_security:
834 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700835 * Deallocate x->security.
836 * @xfrm_state_delete_security:
837 * @x contains the xfrm_state.
838 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800839 * @xfrm_policy_lookup:
840 * @xp contains the xfrm_policy for which the access control is being
841 * checked.
842 * @sk_sid contains the sock security label that is used to authorize
843 * access to the policy xp.
844 * @dir contains the direction of the flow (input or output).
845 * Check permission when a sock selects a xfrm_policy for processing
846 * XFRMs on a packet. The hook is called when selecting either a
847 * per-socket policy or a generic xfrm policy.
848 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849 *
David Howells29db9192005-10-30 15:02:44 -0800850 * Security hooks affecting all Key Management operations
851 *
852 * @key_alloc:
853 * Permit allocation of a key and assign security data. Note that key does
854 * not have a serial number assigned at this point.
855 * @key points to the key.
856 * Return 0 if permission is granted, -ve error otherwise.
857 * @key_free:
858 * Notification of destruction; free security data.
859 * @key points to the key.
860 * No return value.
861 * @key_permission:
862 * See whether a specific operational right is granted to a process on a
863 * key.
864 * @key_ref refers to the key (key pointer + possession attribute bit).
865 * @context points to the process to provide the context against which to
866 * evaluate the security data on the key.
867 * @perm describes the combination of permissions required of this key.
868 * Return 1 if permission granted, 0 if permission denied and -ve it the
869 * normal permissions model should be effected.
870 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871 * Security hooks affecting all System V IPC operations.
872 *
873 * @ipc_permission:
874 * Check permissions for access to IPC
875 * @ipcp contains the kernel IPC permission structure
876 * @flag contains the desired (requested) permission set
877 * Return 0 if permission is granted.
878 *
879 * Security hooks for individual messages held in System V IPC message queues
880 * @msg_msg_alloc_security:
881 * Allocate and attach a security structure to the msg->security field.
882 * The security field is initialized to NULL when the structure is first
883 * created.
884 * @msg contains the message structure to be modified.
885 * Return 0 if operation was successful and permission is granted.
886 * @msg_msg_free_security:
887 * Deallocate the security structure for this message.
888 * @msg contains the message structure to be modified.
889 *
890 * Security hooks for System V IPC Message Queues
891 *
892 * @msg_queue_alloc_security:
893 * Allocate and attach a security structure to the
894 * msq->q_perm.security field. The security field is initialized to
895 * NULL when the structure is first created.
896 * @msq contains the message queue structure to be modified.
897 * Return 0 if operation was successful and permission is granted.
898 * @msg_queue_free_security:
899 * Deallocate security structure for this message queue.
900 * @msq contains the message queue structure to be modified.
901 * @msg_queue_associate:
902 * Check permission when a message queue is requested through the
903 * msgget system call. This hook is only called when returning the
904 * message queue identifier for an existing message queue, not when a
905 * new message queue is created.
906 * @msq contains the message queue to act upon.
907 * @msqflg contains the operation control flags.
908 * Return 0 if permission is granted.
909 * @msg_queue_msgctl:
910 * Check permission when a message control operation specified by @cmd
911 * is to be performed on the message queue @msq.
912 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
913 * @msq contains the message queue to act upon. May be NULL.
914 * @cmd contains the operation to be performed.
915 * Return 0 if permission is granted.
916 * @msg_queue_msgsnd:
917 * Check permission before a message, @msg, is enqueued on the message
918 * queue, @msq.
919 * @msq contains the message queue to send message to.
920 * @msg contains the message to be enqueued.
921 * @msqflg contains operational flags.
922 * Return 0 if permission is granted.
923 * @msg_queue_msgrcv:
924 * Check permission before a message, @msg, is removed from the message
925 * queue, @msq. The @target task structure contains a pointer to the
926 * process that will be receiving the message (not equal to the current
927 * process when inline receives are being performed).
928 * @msq contains the message queue to retrieve message from.
929 * @msg contains the message destination.
930 * @target contains the task structure for recipient process.
931 * @type contains the type of message requested.
932 * @mode contains the operational flags.
933 * Return 0 if permission is granted.
934 *
935 * Security hooks for System V Shared Memory Segments
936 *
937 * @shm_alloc_security:
938 * Allocate and attach a security structure to the shp->shm_perm.security
939 * field. The security field is initialized to NULL when the structure is
940 * first created.
941 * @shp contains the shared memory structure to be modified.
942 * Return 0 if operation was successful and permission is granted.
943 * @shm_free_security:
944 * Deallocate the security struct for this memory segment.
945 * @shp contains the shared memory structure to be modified.
946 * @shm_associate:
947 * Check permission when a shared memory region is requested through the
948 * shmget system call. This hook is only called when returning the shared
949 * memory region identifier for an existing region, not when a new shared
950 * memory region is created.
951 * @shp contains the shared memory structure to be modified.
952 * @shmflg contains the operation control flags.
953 * Return 0 if permission is granted.
954 * @shm_shmctl:
955 * Check permission when a shared memory control operation specified by
956 * @cmd is to be performed on the shared memory region @shp.
957 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
958 * @shp contains shared memory structure to be modified.
959 * @cmd contains the operation to be performed.
960 * Return 0 if permission is granted.
961 * @shm_shmat:
962 * Check permissions prior to allowing the shmat system call to attach the
963 * shared memory segment @shp to the data segment of the calling process.
964 * The attaching address is specified by @shmaddr.
965 * @shp contains the shared memory structure to be modified.
966 * @shmaddr contains the address to attach memory region to.
967 * @shmflg contains the operational flags.
968 * Return 0 if permission is granted.
969 *
970 * Security hooks for System V Semaphores
971 *
972 * @sem_alloc_security:
973 * Allocate and attach a security structure to the sma->sem_perm.security
974 * field. The security field is initialized to NULL when the structure is
975 * first created.
976 * @sma contains the semaphore structure
977 * Return 0 if operation was successful and permission is granted.
978 * @sem_free_security:
979 * deallocate security struct for this semaphore
980 * @sma contains the semaphore structure.
981 * @sem_associate:
982 * Check permission when a semaphore is requested through the semget
983 * system call. This hook is only called when returning the semaphore
984 * identifier for an existing semaphore, not when a new one must be
985 * created.
986 * @sma contains the semaphore structure.
987 * @semflg contains the operation control flags.
988 * Return 0 if permission is granted.
989 * @sem_semctl:
990 * Check permission when a semaphore operation specified by @cmd is to be
991 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
992 * IPC_INFO or SEM_INFO.
993 * @sma contains the semaphore structure. May be NULL.
994 * @cmd contains the operation to be performed.
995 * Return 0 if permission is granted.
996 * @sem_semop
997 * Check permissions before performing operations on members of the
998 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
999 * may be modified.
1000 * @sma contains the semaphore structure.
1001 * @sops contains the operations to perform.
1002 * @nsops contains the number of operations to perform.
1003 * @alter contains the flag indicating whether changes are to be made.
1004 * Return 0 if permission is granted.
1005 *
1006 * @ptrace:
1007 * Check permission before allowing the @parent process to trace the
1008 * @child process.
1009 * Security modules may also want to perform a process tracing check
1010 * during an execve in the set_security or apply_creds hooks of
1011 * binprm_security_ops if the process is being traced and its security
1012 * attributes would be changed by the execve.
1013 * @parent contains the task_struct structure for parent process.
1014 * @child contains the task_struct structure for child process.
1015 * Return 0 if permission is granted.
1016 * @capget:
1017 * Get the @effective, @inheritable, and @permitted capability sets for
1018 * the @target process. The hook may also perform permission checking to
1019 * determine if the current process is allowed to see the capability sets
1020 * of the @target process.
1021 * @target contains the task_struct structure for target process.
1022 * @effective contains the effective capability set.
1023 * @inheritable contains the inheritable capability set.
1024 * @permitted contains the permitted capability set.
1025 * Return 0 if the capability sets were successfully obtained.
1026 * @capset_check:
1027 * Check permission before setting the @effective, @inheritable, and
1028 * @permitted capability sets for the @target process.
1029 * Caveat: @target is also set to current if a set of processes is
1030 * specified (i.e. all processes other than current and init or a
1031 * particular process group). Hence, the capset_set hook may need to
1032 * revalidate permission to the actual target process.
1033 * @target contains the task_struct structure for target process.
1034 * @effective contains the effective capability set.
1035 * @inheritable contains the inheritable capability set.
1036 * @permitted contains the permitted capability set.
1037 * Return 0 if permission is granted.
1038 * @capset_set:
1039 * Set the @effective, @inheritable, and @permitted capability sets for
1040 * the @target process. Since capset_check cannot always check permission
1041 * to the real @target process, this hook may also perform permission
1042 * checking to determine if the current process is allowed to set the
1043 * capability sets of the @target process. However, this hook has no way
1044 * of returning an error due to the structure of the sys_capset code.
1045 * @target contains the task_struct structure for target process.
1046 * @effective contains the effective capability set.
1047 * @inheritable contains the inheritable capability set.
1048 * @permitted contains the permitted capability set.
Chris Wright12b59892006-03-25 03:07:41 -08001049 * @capable:
1050 * Check whether the @tsk process has the @cap capability.
1051 * @tsk contains the task_struct for the process.
1052 * @cap contains the capability <include/linux/capability.h>.
1053 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054 * @acct:
1055 * Check permission before enabling or disabling process accounting. If
1056 * accounting is being enabled, then @file refers to the open file used to
1057 * store accounting records. If accounting is being disabled, then @file
1058 * is NULL.
1059 * @file contains the file structure for the accounting file (may be NULL).
1060 * Return 0 if permission is granted.
1061 * @sysctl:
1062 * Check permission before accessing the @table sysctl variable in the
1063 * manner specified by @op.
1064 * @table contains the ctl_table structure for the sysctl variable.
1065 * @op contains the operation (001 = search, 002 = write, 004 = read).
1066 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067 * @syslog:
1068 * Check permission before accessing the kernel message ring or changing
1069 * logging to the console.
1070 * See the syslog(2) manual page for an explanation of the @type values.
1071 * @type contains the type of action.
1072 * Return 0 if permission is granted.
1073 * @settime:
1074 * Check permission to change the system time.
1075 * struct timespec and timezone are defined in include/linux/time.h
1076 * @ts contains new time
1077 * @tz contains new timezone
1078 * Return 0 if permission is granted.
1079 * @vm_enough_memory:
1080 * Check permissions for allocating a new virtual mapping.
1081 * @pages contains the number of pages.
1082 * Return 0 if permission is granted.
1083 *
1084 * @register_security:
1085 * allow module stacking.
1086 * @name contains the name of the security module being stacked.
1087 * @ops contains a pointer to the struct security_operations of the module to stack.
1088 * @unregister_security:
1089 * remove a stacked module.
1090 * @name contains the name of the security module being unstacked.
1091 * @ops contains a pointer to the struct security_operations of the module to unstack.
1092 *
1093 * This is the main security structure.
1094 */
1095struct security_operations {
1096 int (*ptrace) (struct task_struct * parent, struct task_struct * child);
1097 int (*capget) (struct task_struct * target,
1098 kernel_cap_t * effective,
1099 kernel_cap_t * inheritable, kernel_cap_t * permitted);
1100 int (*capset_check) (struct task_struct * target,
1101 kernel_cap_t * effective,
1102 kernel_cap_t * inheritable,
1103 kernel_cap_t * permitted);
1104 void (*capset_set) (struct task_struct * target,
1105 kernel_cap_t * effective,
1106 kernel_cap_t * inheritable,
1107 kernel_cap_t * permitted);
Chris Wright12b59892006-03-25 03:07:41 -08001108 int (*capable) (struct task_struct * tsk, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001109 int (*acct) (struct file * file);
1110 int (*sysctl) (struct ctl_table * table, int op);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111 int (*quotactl) (int cmds, int type, int id, struct super_block * sb);
1112 int (*quota_on) (struct dentry * dentry);
1113 int (*syslog) (int type);
1114 int (*settime) (struct timespec *ts, struct timezone *tz);
1115 int (*vm_enough_memory) (long pages);
1116
1117 int (*bprm_alloc_security) (struct linux_binprm * bprm);
1118 void (*bprm_free_security) (struct linux_binprm * bprm);
1119 void (*bprm_apply_creds) (struct linux_binprm * bprm, int unsafe);
1120 void (*bprm_post_apply_creds) (struct linux_binprm * bprm);
1121 int (*bprm_set_security) (struct linux_binprm * bprm);
1122 int (*bprm_check_security) (struct linux_binprm * bprm);
1123 int (*bprm_secureexec) (struct linux_binprm * bprm);
1124
1125 int (*sb_alloc_security) (struct super_block * sb);
1126 void (*sb_free_security) (struct super_block * sb);
1127 int (*sb_copy_data)(struct file_system_type *type,
1128 void *orig, void *copy);
1129 int (*sb_kern_mount) (struct super_block *sb, void *data);
1130 int (*sb_statfs) (struct super_block * sb);
1131 int (*sb_mount) (char *dev_name, struct nameidata * nd,
1132 char *type, unsigned long flags, void *data);
1133 int (*sb_check_sb) (struct vfsmount * mnt, struct nameidata * nd);
1134 int (*sb_umount) (struct vfsmount * mnt, int flags);
1135 void (*sb_umount_close) (struct vfsmount * mnt);
1136 void (*sb_umount_busy) (struct vfsmount * mnt);
1137 void (*sb_post_remount) (struct vfsmount * mnt,
1138 unsigned long flags, void *data);
1139 void (*sb_post_mountroot) (void);
1140 void (*sb_post_addmount) (struct vfsmount * mnt,
1141 struct nameidata * mountpoint_nd);
1142 int (*sb_pivotroot) (struct nameidata * old_nd,
1143 struct nameidata * new_nd);
1144 void (*sb_post_pivotroot) (struct nameidata * old_nd,
1145 struct nameidata * new_nd);
1146
1147 int (*inode_alloc_security) (struct inode *inode);
1148 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001149 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1150 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 int (*inode_create) (struct inode *dir,
1152 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153 int (*inode_link) (struct dentry *old_dentry,
1154 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1156 int (*inode_symlink) (struct inode *dir,
1157 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1160 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1161 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1163 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164 int (*inode_readlink) (struct dentry *dentry);
1165 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1166 int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd);
1167 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1168 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1169 void (*inode_delete) (struct inode *inode);
1170 int (*inode_setxattr) (struct dentry *dentry, char *name, void *value,
1171 size_t size, int flags);
1172 void (*inode_post_setxattr) (struct dentry *dentry, char *name, void *value,
1173 size_t size, int flags);
1174 int (*inode_getxattr) (struct dentry *dentry, char *name);
1175 int (*inode_listxattr) (struct dentry *dentry);
1176 int (*inode_removexattr) (struct dentry *dentry, char *name);
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00001177 const char *(*inode_xattr_getsuffix) (void);
1178 int (*inode_getsecurity)(const struct inode *inode, const char *name, void *buffer, size_t size, int err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179 int (*inode_setsecurity)(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1180 int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size);
1181
1182 int (*file_permission) (struct file * file, int mask);
1183 int (*file_alloc_security) (struct file * file);
1184 void (*file_free_security) (struct file * file);
1185 int (*file_ioctl) (struct file * file, unsigned int cmd,
1186 unsigned long arg);
1187 int (*file_mmap) (struct file * file,
1188 unsigned long reqprot,
1189 unsigned long prot, unsigned long flags);
1190 int (*file_mprotect) (struct vm_area_struct * vma,
1191 unsigned long reqprot,
1192 unsigned long prot);
1193 int (*file_lock) (struct file * file, unsigned int cmd);
1194 int (*file_fcntl) (struct file * file, unsigned int cmd,
1195 unsigned long arg);
1196 int (*file_set_fowner) (struct file * file);
1197 int (*file_send_sigiotask) (struct task_struct * tsk,
1198 struct fown_struct * fown, int sig);
1199 int (*file_receive) (struct file * file);
1200
1201 int (*task_create) (unsigned long clone_flags);
1202 int (*task_alloc_security) (struct task_struct * p);
1203 void (*task_free_security) (struct task_struct * p);
1204 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1205 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1206 uid_t old_euid, uid_t old_suid, int flags);
1207 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1208 int (*task_setpgid) (struct task_struct * p, pid_t pgid);
1209 int (*task_getpgid) (struct task_struct * p);
1210 int (*task_getsid) (struct task_struct * p);
1211 int (*task_setgroups) (struct group_info *group_info);
1212 int (*task_setnice) (struct task_struct * p, int nice);
1213 int (*task_setrlimit) (unsigned int resource, struct rlimit * new_rlim);
1214 int (*task_setscheduler) (struct task_struct * p, int policy,
1215 struct sched_param * lp);
1216 int (*task_getscheduler) (struct task_struct * p);
1217 int (*task_kill) (struct task_struct * p,
1218 struct siginfo * info, int sig);
1219 int (*task_wait) (struct task_struct * p);
1220 int (*task_prctl) (int option, unsigned long arg2,
1221 unsigned long arg3, unsigned long arg4,
1222 unsigned long arg5);
1223 void (*task_reparent_to_init) (struct task_struct * p);
1224 void (*task_to_inode)(struct task_struct *p, struct inode *inode);
1225
1226 int (*ipc_permission) (struct kern_ipc_perm * ipcp, short flag);
1227
1228 int (*msg_msg_alloc_security) (struct msg_msg * msg);
1229 void (*msg_msg_free_security) (struct msg_msg * msg);
1230
1231 int (*msg_queue_alloc_security) (struct msg_queue * msq);
1232 void (*msg_queue_free_security) (struct msg_queue * msq);
1233 int (*msg_queue_associate) (struct msg_queue * msq, int msqflg);
1234 int (*msg_queue_msgctl) (struct msg_queue * msq, int cmd);
1235 int (*msg_queue_msgsnd) (struct msg_queue * msq,
1236 struct msg_msg * msg, int msqflg);
1237 int (*msg_queue_msgrcv) (struct msg_queue * msq,
1238 struct msg_msg * msg,
1239 struct task_struct * target,
1240 long type, int mode);
1241
1242 int (*shm_alloc_security) (struct shmid_kernel * shp);
1243 void (*shm_free_security) (struct shmid_kernel * shp);
1244 int (*shm_associate) (struct shmid_kernel * shp, int shmflg);
1245 int (*shm_shmctl) (struct shmid_kernel * shp, int cmd);
1246 int (*shm_shmat) (struct shmid_kernel * shp,
1247 char __user *shmaddr, int shmflg);
1248
1249 int (*sem_alloc_security) (struct sem_array * sma);
1250 void (*sem_free_security) (struct sem_array * sma);
1251 int (*sem_associate) (struct sem_array * sma, int semflg);
1252 int (*sem_semctl) (struct sem_array * sma, int cmd);
1253 int (*sem_semop) (struct sem_array * sma,
1254 struct sembuf * sops, unsigned nsops, int alter);
1255
1256 int (*netlink_send) (struct sock * sk, struct sk_buff * skb);
1257 int (*netlink_recv) (struct sk_buff * skb);
1258
1259 /* allow module stacking */
1260 int (*register_security) (const char *name,
1261 struct security_operations *ops);
1262 int (*unregister_security) (const char *name,
1263 struct security_operations *ops);
1264
1265 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1266
1267 int (*getprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1268 int (*setprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1269
1270#ifdef CONFIG_SECURITY_NETWORK
1271 int (*unix_stream_connect) (struct socket * sock,
1272 struct socket * other, struct sock * newsk);
1273 int (*unix_may_send) (struct socket * sock, struct socket * other);
1274
1275 int (*socket_create) (int family, int type, int protocol, int kern);
1276 void (*socket_post_create) (struct socket * sock, int family,
1277 int type, int protocol, int kern);
1278 int (*socket_bind) (struct socket * sock,
1279 struct sockaddr * address, int addrlen);
1280 int (*socket_connect) (struct socket * sock,
1281 struct sockaddr * address, int addrlen);
1282 int (*socket_listen) (struct socket * sock, int backlog);
1283 int (*socket_accept) (struct socket * sock, struct socket * newsock);
1284 void (*socket_post_accept) (struct socket * sock,
1285 struct socket * newsock);
1286 int (*socket_sendmsg) (struct socket * sock,
1287 struct msghdr * msg, int size);
1288 int (*socket_recvmsg) (struct socket * sock,
1289 struct msghdr * msg, int size, int flags);
1290 int (*socket_getsockname) (struct socket * sock);
1291 int (*socket_getpeername) (struct socket * sock);
1292 int (*socket_getsockopt) (struct socket * sock, int level, int optname);
1293 int (*socket_setsockopt) (struct socket * sock, int level, int optname);
1294 int (*socket_shutdown) (struct socket * sock, int how);
1295 int (*socket_sock_rcv_skb) (struct sock * sk, struct sk_buff * skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001296 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1297 int (*socket_getpeersec_dgram) (struct sk_buff *skb, char **secdata, u32 *seclen);
Al Viro7d877f32005-10-21 03:20:43 -04001298 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299 void (*sk_free_security) (struct sock *sk);
Trent Jaegerdf718372005-12-13 23:12:27 -08001300 unsigned int (*sk_getsid) (struct sock *sk, struct flowi *fl, u8 dir);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001302
Trent Jaegerdf718372005-12-13 23:12:27 -08001303#ifdef CONFIG_SECURITY_NETWORK_XFRM
1304 int (*xfrm_policy_alloc_security) (struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx);
1305 int (*xfrm_policy_clone_security) (struct xfrm_policy *old, struct xfrm_policy *new);
1306 void (*xfrm_policy_free_security) (struct xfrm_policy *xp);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001307 int (*xfrm_policy_delete_security) (struct xfrm_policy *xp);
Trent Jaegerdf718372005-12-13 23:12:27 -08001308 int (*xfrm_state_alloc_security) (struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1309 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001310 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Trent Jaegerdf718372005-12-13 23:12:27 -08001311 int (*xfrm_policy_lookup)(struct xfrm_policy *xp, u32 sk_sid, u8 dir);
1312#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1313
David Howells29db9192005-10-30 15:02:44 -08001314 /* key management security hooks */
1315#ifdef CONFIG_KEYS
1316 int (*key_alloc)(struct key *key);
1317 void (*key_free)(struct key *key);
1318 int (*key_permission)(key_ref_t key_ref,
1319 struct task_struct *context,
1320 key_perm_t perm);
1321
1322#endif /* CONFIG_KEYS */
1323
Linus Torvalds1da177e2005-04-16 15:20:36 -07001324};
1325
1326/* global variables */
1327extern struct security_operations *security_ops;
1328
1329/* inline stuff */
1330static inline int security_ptrace (struct task_struct * parent, struct task_struct * child)
1331{
1332 return security_ops->ptrace (parent, child);
1333}
1334
1335static inline int security_capget (struct task_struct *target,
1336 kernel_cap_t *effective,
1337 kernel_cap_t *inheritable,
1338 kernel_cap_t *permitted)
1339{
1340 return security_ops->capget (target, effective, inheritable, permitted);
1341}
1342
1343static inline int security_capset_check (struct task_struct *target,
1344 kernel_cap_t *effective,
1345 kernel_cap_t *inheritable,
1346 kernel_cap_t *permitted)
1347{
1348 return security_ops->capset_check (target, effective, inheritable, permitted);
1349}
1350
1351static inline void security_capset_set (struct task_struct *target,
1352 kernel_cap_t *effective,
1353 kernel_cap_t *inheritable,
1354 kernel_cap_t *permitted)
1355{
1356 security_ops->capset_set (target, effective, inheritable, permitted);
1357}
1358
Chris Wright12b59892006-03-25 03:07:41 -08001359static inline int security_capable(struct task_struct *tsk, int cap)
1360{
1361 return security_ops->capable(tsk, cap);
1362}
1363
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364static inline int security_acct (struct file *file)
1365{
1366 return security_ops->acct (file);
1367}
1368
1369static inline int security_sysctl(struct ctl_table *table, int op)
1370{
1371 return security_ops->sysctl(table, op);
1372}
1373
1374static inline int security_quotactl (int cmds, int type, int id,
1375 struct super_block *sb)
1376{
1377 return security_ops->quotactl (cmds, type, id, sb);
1378}
1379
1380static inline int security_quota_on (struct dentry * dentry)
1381{
1382 return security_ops->quota_on (dentry);
1383}
1384
1385static inline int security_syslog(int type)
1386{
1387 return security_ops->syslog(type);
1388}
1389
1390static inline int security_settime(struct timespec *ts, struct timezone *tz)
1391{
1392 return security_ops->settime(ts, tz);
1393}
1394
1395
1396static inline int security_vm_enough_memory(long pages)
1397{
1398 return security_ops->vm_enough_memory(pages);
1399}
1400
1401static inline int security_bprm_alloc (struct linux_binprm *bprm)
1402{
1403 return security_ops->bprm_alloc_security (bprm);
1404}
1405static inline void security_bprm_free (struct linux_binprm *bprm)
1406{
1407 security_ops->bprm_free_security (bprm);
1408}
1409static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
1410{
1411 security_ops->bprm_apply_creds (bprm, unsafe);
1412}
1413static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
1414{
1415 security_ops->bprm_post_apply_creds (bprm);
1416}
1417static inline int security_bprm_set (struct linux_binprm *bprm)
1418{
1419 return security_ops->bprm_set_security (bprm);
1420}
1421
1422static inline int security_bprm_check (struct linux_binprm *bprm)
1423{
1424 return security_ops->bprm_check_security (bprm);
1425}
1426
1427static inline int security_bprm_secureexec (struct linux_binprm *bprm)
1428{
1429 return security_ops->bprm_secureexec (bprm);
1430}
1431
1432static inline int security_sb_alloc (struct super_block *sb)
1433{
1434 return security_ops->sb_alloc_security (sb);
1435}
1436
1437static inline void security_sb_free (struct super_block *sb)
1438{
1439 security_ops->sb_free_security (sb);
1440}
1441
1442static inline int security_sb_copy_data (struct file_system_type *type,
1443 void *orig, void *copy)
1444{
1445 return security_ops->sb_copy_data (type, orig, copy);
1446}
1447
1448static inline int security_sb_kern_mount (struct super_block *sb, void *data)
1449{
1450 return security_ops->sb_kern_mount (sb, data);
1451}
1452
1453static inline int security_sb_statfs (struct super_block *sb)
1454{
1455 return security_ops->sb_statfs (sb);
1456}
1457
1458static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
1459 char *type, unsigned long flags,
1460 void *data)
1461{
1462 return security_ops->sb_mount (dev_name, nd, type, flags, data);
1463}
1464
1465static inline int security_sb_check_sb (struct vfsmount *mnt,
1466 struct nameidata *nd)
1467{
1468 return security_ops->sb_check_sb (mnt, nd);
1469}
1470
1471static inline int security_sb_umount (struct vfsmount *mnt, int flags)
1472{
1473 return security_ops->sb_umount (mnt, flags);
1474}
1475
1476static inline void security_sb_umount_close (struct vfsmount *mnt)
1477{
1478 security_ops->sb_umount_close (mnt);
1479}
1480
1481static inline void security_sb_umount_busy (struct vfsmount *mnt)
1482{
1483 security_ops->sb_umount_busy (mnt);
1484}
1485
1486static inline void security_sb_post_remount (struct vfsmount *mnt,
1487 unsigned long flags, void *data)
1488{
1489 security_ops->sb_post_remount (mnt, flags, data);
1490}
1491
1492static inline void security_sb_post_mountroot (void)
1493{
1494 security_ops->sb_post_mountroot ();
1495}
1496
1497static inline void security_sb_post_addmount (struct vfsmount *mnt,
1498 struct nameidata *mountpoint_nd)
1499{
1500 security_ops->sb_post_addmount (mnt, mountpoint_nd);
1501}
1502
1503static inline int security_sb_pivotroot (struct nameidata *old_nd,
1504 struct nameidata *new_nd)
1505{
1506 return security_ops->sb_pivotroot (old_nd, new_nd);
1507}
1508
1509static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
1510 struct nameidata *new_nd)
1511{
1512 security_ops->sb_post_pivotroot (old_nd, new_nd);
1513}
1514
1515static inline int security_inode_alloc (struct inode *inode)
1516{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517 return security_ops->inode_alloc_security (inode);
1518}
1519
1520static inline void security_inode_free (struct inode *inode)
1521{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522 security_ops->inode_free_security (inode);
1523}
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001524
1525static inline int security_inode_init_security (struct inode *inode,
1526 struct inode *dir,
1527 char **name,
1528 void **value,
1529 size_t *len)
1530{
1531 if (unlikely (IS_PRIVATE (inode)))
1532 return -EOPNOTSUPP;
1533 return security_ops->inode_init_security (inode, dir, name, value, len);
1534}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001535
1536static inline int security_inode_create (struct inode *dir,
1537 struct dentry *dentry,
1538 int mode)
1539{
1540 if (unlikely (IS_PRIVATE (dir)))
1541 return 0;
1542 return security_ops->inode_create (dir, dentry, mode);
1543}
1544
Linus Torvalds1da177e2005-04-16 15:20:36 -07001545static inline int security_inode_link (struct dentry *old_dentry,
1546 struct inode *dir,
1547 struct dentry *new_dentry)
1548{
1549 if (unlikely (IS_PRIVATE (old_dentry->d_inode)))
1550 return 0;
1551 return security_ops->inode_link (old_dentry, dir, new_dentry);
1552}
1553
Linus Torvalds1da177e2005-04-16 15:20:36 -07001554static inline int security_inode_unlink (struct inode *dir,
1555 struct dentry *dentry)
1556{
1557 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1558 return 0;
1559 return security_ops->inode_unlink (dir, dentry);
1560}
1561
1562static inline int security_inode_symlink (struct inode *dir,
1563 struct dentry *dentry,
1564 const char *old_name)
1565{
1566 if (unlikely (IS_PRIVATE (dir)))
1567 return 0;
1568 return security_ops->inode_symlink (dir, dentry, old_name);
1569}
1570
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571static inline int security_inode_mkdir (struct inode *dir,
1572 struct dentry *dentry,
1573 int mode)
1574{
1575 if (unlikely (IS_PRIVATE (dir)))
1576 return 0;
1577 return security_ops->inode_mkdir (dir, dentry, mode);
1578}
1579
Linus Torvalds1da177e2005-04-16 15:20:36 -07001580static inline int security_inode_rmdir (struct inode *dir,
1581 struct dentry *dentry)
1582{
1583 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1584 return 0;
1585 return security_ops->inode_rmdir (dir, dentry);
1586}
1587
1588static inline int security_inode_mknod (struct inode *dir,
1589 struct dentry *dentry,
1590 int mode, dev_t dev)
1591{
1592 if (unlikely (IS_PRIVATE (dir)))
1593 return 0;
1594 return security_ops->inode_mknod (dir, dentry, mode, dev);
1595}
1596
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597static inline int security_inode_rename (struct inode *old_dir,
1598 struct dentry *old_dentry,
1599 struct inode *new_dir,
1600 struct dentry *new_dentry)
1601{
1602 if (unlikely (IS_PRIVATE (old_dentry->d_inode) ||
1603 (new_dentry->d_inode && IS_PRIVATE (new_dentry->d_inode))))
1604 return 0;
1605 return security_ops->inode_rename (old_dir, old_dentry,
1606 new_dir, new_dentry);
1607}
1608
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609static inline int security_inode_readlink (struct dentry *dentry)
1610{
1611 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1612 return 0;
1613 return security_ops->inode_readlink (dentry);
1614}
1615
1616static inline int security_inode_follow_link (struct dentry *dentry,
1617 struct nameidata *nd)
1618{
1619 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1620 return 0;
1621 return security_ops->inode_follow_link (dentry, nd);
1622}
1623
1624static inline int security_inode_permission (struct inode *inode, int mask,
1625 struct nameidata *nd)
1626{
1627 if (unlikely (IS_PRIVATE (inode)))
1628 return 0;
1629 return security_ops->inode_permission (inode, mask, nd);
1630}
1631
1632static inline int security_inode_setattr (struct dentry *dentry,
1633 struct iattr *attr)
1634{
1635 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1636 return 0;
1637 return security_ops->inode_setattr (dentry, attr);
1638}
1639
1640static inline int security_inode_getattr (struct vfsmount *mnt,
1641 struct dentry *dentry)
1642{
1643 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1644 return 0;
1645 return security_ops->inode_getattr (mnt, dentry);
1646}
1647
1648static inline void security_inode_delete (struct inode *inode)
1649{
1650 if (unlikely (IS_PRIVATE (inode)))
1651 return;
1652 security_ops->inode_delete (inode);
1653}
1654
1655static inline int security_inode_setxattr (struct dentry *dentry, char *name,
1656 void *value, size_t size, int flags)
1657{
1658 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1659 return 0;
1660 return security_ops->inode_setxattr (dentry, name, value, size, flags);
1661}
1662
1663static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
1664 void *value, size_t size, int flags)
1665{
1666 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1667 return;
1668 security_ops->inode_post_setxattr (dentry, name, value, size, flags);
1669}
1670
1671static inline int security_inode_getxattr (struct dentry *dentry, char *name)
1672{
1673 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1674 return 0;
1675 return security_ops->inode_getxattr (dentry, name);
1676}
1677
1678static inline int security_inode_listxattr (struct dentry *dentry)
1679{
1680 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1681 return 0;
1682 return security_ops->inode_listxattr (dentry);
1683}
1684
1685static inline int security_inode_removexattr (struct dentry *dentry, char *name)
1686{
1687 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1688 return 0;
1689 return security_ops->inode_removexattr (dentry, name);
1690}
1691
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00001692static inline const char *security_inode_xattr_getsuffix(void)
1693{
1694 return security_ops->inode_xattr_getsuffix();
1695}
1696
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00001697static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void *buffer, size_t size, int err)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001698{
1699 if (unlikely (IS_PRIVATE (inode)))
1700 return 0;
James Morrisd381d8a2005-10-30 14:59:22 -08001701 return security_ops->inode_getsecurity(inode, name, buffer, size, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001702}
1703
1704static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
1705{
1706 if (unlikely (IS_PRIVATE (inode)))
1707 return 0;
1708 return security_ops->inode_setsecurity(inode, name, value, size, flags);
1709}
1710
1711static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
1712{
1713 if (unlikely (IS_PRIVATE (inode)))
1714 return 0;
1715 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
1716}
1717
1718static inline int security_file_permission (struct file *file, int mask)
1719{
1720 return security_ops->file_permission (file, mask);
1721}
1722
1723static inline int security_file_alloc (struct file *file)
1724{
1725 return security_ops->file_alloc_security (file);
1726}
1727
1728static inline void security_file_free (struct file *file)
1729{
1730 security_ops->file_free_security (file);
1731}
1732
1733static inline int security_file_ioctl (struct file *file, unsigned int cmd,
1734 unsigned long arg)
1735{
1736 return security_ops->file_ioctl (file, cmd, arg);
1737}
1738
1739static inline int security_file_mmap (struct file *file, unsigned long reqprot,
1740 unsigned long prot,
1741 unsigned long flags)
1742{
1743 return security_ops->file_mmap (file, reqprot, prot, flags);
1744}
1745
1746static inline int security_file_mprotect (struct vm_area_struct *vma,
1747 unsigned long reqprot,
1748 unsigned long prot)
1749{
1750 return security_ops->file_mprotect (vma, reqprot, prot);
1751}
1752
1753static inline int security_file_lock (struct file *file, unsigned int cmd)
1754{
1755 return security_ops->file_lock (file, cmd);
1756}
1757
1758static inline int security_file_fcntl (struct file *file, unsigned int cmd,
1759 unsigned long arg)
1760{
1761 return security_ops->file_fcntl (file, cmd, arg);
1762}
1763
1764static inline int security_file_set_fowner (struct file *file)
1765{
1766 return security_ops->file_set_fowner (file);
1767}
1768
1769static inline int security_file_send_sigiotask (struct task_struct *tsk,
1770 struct fown_struct *fown,
1771 int sig)
1772{
1773 return security_ops->file_send_sigiotask (tsk, fown, sig);
1774}
1775
1776static inline int security_file_receive (struct file *file)
1777{
1778 return security_ops->file_receive (file);
1779}
1780
1781static inline int security_task_create (unsigned long clone_flags)
1782{
1783 return security_ops->task_create (clone_flags);
1784}
1785
1786static inline int security_task_alloc (struct task_struct *p)
1787{
1788 return security_ops->task_alloc_security (p);
1789}
1790
1791static inline void security_task_free (struct task_struct *p)
1792{
1793 security_ops->task_free_security (p);
1794}
1795
1796static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
1797 int flags)
1798{
1799 return security_ops->task_setuid (id0, id1, id2, flags);
1800}
1801
1802static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
1803 uid_t old_suid, int flags)
1804{
1805 return security_ops->task_post_setuid (old_ruid, old_euid, old_suid, flags);
1806}
1807
1808static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
1809 int flags)
1810{
1811 return security_ops->task_setgid (id0, id1, id2, flags);
1812}
1813
1814static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
1815{
1816 return security_ops->task_setpgid (p, pgid);
1817}
1818
1819static inline int security_task_getpgid (struct task_struct *p)
1820{
1821 return security_ops->task_getpgid (p);
1822}
1823
1824static inline int security_task_getsid (struct task_struct *p)
1825{
1826 return security_ops->task_getsid (p);
1827}
1828
1829static inline int security_task_setgroups (struct group_info *group_info)
1830{
1831 return security_ops->task_setgroups (group_info);
1832}
1833
1834static inline int security_task_setnice (struct task_struct *p, int nice)
1835{
1836 return security_ops->task_setnice (p, nice);
1837}
1838
1839static inline int security_task_setrlimit (unsigned int resource,
1840 struct rlimit *new_rlim)
1841{
1842 return security_ops->task_setrlimit (resource, new_rlim);
1843}
1844
1845static inline int security_task_setscheduler (struct task_struct *p,
1846 int policy,
1847 struct sched_param *lp)
1848{
1849 return security_ops->task_setscheduler (p, policy, lp);
1850}
1851
1852static inline int security_task_getscheduler (struct task_struct *p)
1853{
1854 return security_ops->task_getscheduler (p);
1855}
1856
1857static inline int security_task_kill (struct task_struct *p,
1858 struct siginfo *info, int sig)
1859{
1860 return security_ops->task_kill (p, info, sig);
1861}
1862
1863static inline int security_task_wait (struct task_struct *p)
1864{
1865 return security_ops->task_wait (p);
1866}
1867
1868static inline int security_task_prctl (int option, unsigned long arg2,
1869 unsigned long arg3,
1870 unsigned long arg4,
1871 unsigned long arg5)
1872{
1873 return security_ops->task_prctl (option, arg2, arg3, arg4, arg5);
1874}
1875
1876static inline void security_task_reparent_to_init (struct task_struct *p)
1877{
1878 security_ops->task_reparent_to_init (p);
1879}
1880
1881static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1882{
1883 security_ops->task_to_inode(p, inode);
1884}
1885
1886static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
1887 short flag)
1888{
1889 return security_ops->ipc_permission (ipcp, flag);
1890}
1891
1892static inline int security_msg_msg_alloc (struct msg_msg * msg)
1893{
1894 return security_ops->msg_msg_alloc_security (msg);
1895}
1896
1897static inline void security_msg_msg_free (struct msg_msg * msg)
1898{
1899 security_ops->msg_msg_free_security(msg);
1900}
1901
1902static inline int security_msg_queue_alloc (struct msg_queue *msq)
1903{
1904 return security_ops->msg_queue_alloc_security (msq);
1905}
1906
1907static inline void security_msg_queue_free (struct msg_queue *msq)
1908{
1909 security_ops->msg_queue_free_security (msq);
1910}
1911
1912static inline int security_msg_queue_associate (struct msg_queue * msq,
1913 int msqflg)
1914{
1915 return security_ops->msg_queue_associate (msq, msqflg);
1916}
1917
1918static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
1919{
1920 return security_ops->msg_queue_msgctl (msq, cmd);
1921}
1922
1923static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
1924 struct msg_msg * msg, int msqflg)
1925{
1926 return security_ops->msg_queue_msgsnd (msq, msg, msqflg);
1927}
1928
1929static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
1930 struct msg_msg * msg,
1931 struct task_struct * target,
1932 long type, int mode)
1933{
1934 return security_ops->msg_queue_msgrcv (msq, msg, target, type, mode);
1935}
1936
1937static inline int security_shm_alloc (struct shmid_kernel *shp)
1938{
1939 return security_ops->shm_alloc_security (shp);
1940}
1941
1942static inline void security_shm_free (struct shmid_kernel *shp)
1943{
1944 security_ops->shm_free_security (shp);
1945}
1946
1947static inline int security_shm_associate (struct shmid_kernel * shp,
1948 int shmflg)
1949{
1950 return security_ops->shm_associate(shp, shmflg);
1951}
1952
1953static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
1954{
1955 return security_ops->shm_shmctl (shp, cmd);
1956}
1957
1958static inline int security_shm_shmat (struct shmid_kernel * shp,
1959 char __user *shmaddr, int shmflg)
1960{
1961 return security_ops->shm_shmat(shp, shmaddr, shmflg);
1962}
1963
1964static inline int security_sem_alloc (struct sem_array *sma)
1965{
1966 return security_ops->sem_alloc_security (sma);
1967}
1968
1969static inline void security_sem_free (struct sem_array *sma)
1970{
1971 security_ops->sem_free_security (sma);
1972}
1973
1974static inline int security_sem_associate (struct sem_array * sma, int semflg)
1975{
1976 return security_ops->sem_associate (sma, semflg);
1977}
1978
1979static inline int security_sem_semctl (struct sem_array * sma, int cmd)
1980{
1981 return security_ops->sem_semctl(sma, cmd);
1982}
1983
1984static inline int security_sem_semop (struct sem_array * sma,
1985 struct sembuf * sops, unsigned nsops,
1986 int alter)
1987{
1988 return security_ops->sem_semop(sma, sops, nsops, alter);
1989}
1990
1991static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
1992{
1993 if (unlikely (inode && IS_PRIVATE (inode)))
1994 return;
1995 security_ops->d_instantiate (dentry, inode);
1996}
1997
1998static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
1999{
2000 return security_ops->getprocattr(p, name, value, size);
2001}
2002
2003static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2004{
2005 return security_ops->setprocattr(p, name, value, size);
2006}
2007
2008static inline int security_netlink_send(struct sock *sk, struct sk_buff * skb)
2009{
2010 return security_ops->netlink_send(sk, skb);
2011}
2012
2013static inline int security_netlink_recv(struct sk_buff * skb)
2014{
2015 return security_ops->netlink_recv(skb);
2016}
2017
2018/* prototypes */
2019extern int security_init (void);
2020extern int register_security (struct security_operations *ops);
2021extern int unregister_security (struct security_operations *ops);
2022extern int mod_reg_security (const char *name, struct security_operations *ops);
2023extern int mod_unreg_security (const char *name, struct security_operations *ops);
Greg KHb67dbf92005-07-07 14:37:53 -07002024extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2025 struct dentry *parent, void *data,
2026 struct file_operations *fops);
2027extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2028extern void securityfs_remove(struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002029
2030
2031#else /* CONFIG_SECURITY */
2032
2033/*
2034 * This is the default capabilities functionality. Most of these functions
2035 * are just stubbed out, but a few must call the proper capable code.
2036 */
2037
2038static inline int security_init(void)
2039{
2040 return 0;
2041}
2042
2043static inline int security_ptrace (struct task_struct *parent, struct task_struct * child)
2044{
2045 return cap_ptrace (parent, child);
2046}
2047
2048static inline int security_capget (struct task_struct *target,
2049 kernel_cap_t *effective,
2050 kernel_cap_t *inheritable,
2051 kernel_cap_t *permitted)
2052{
2053 return cap_capget (target, effective, inheritable, permitted);
2054}
2055
2056static inline int security_capset_check (struct task_struct *target,
2057 kernel_cap_t *effective,
2058 kernel_cap_t *inheritable,
2059 kernel_cap_t *permitted)
2060{
2061 return cap_capset_check (target, effective, inheritable, permitted);
2062}
2063
2064static inline void security_capset_set (struct task_struct *target,
2065 kernel_cap_t *effective,
2066 kernel_cap_t *inheritable,
2067 kernel_cap_t *permitted)
2068{
2069 cap_capset_set (target, effective, inheritable, permitted);
2070}
2071
Chris Wright12b59892006-03-25 03:07:41 -08002072static inline int security_capable(struct task_struct *tsk, int cap)
2073{
2074 return cap_capable(tsk, cap);
2075}
2076
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077static inline int security_acct (struct file *file)
2078{
2079 return 0;
2080}
2081
2082static inline int security_sysctl(struct ctl_table *table, int op)
2083{
2084 return 0;
2085}
2086
2087static inline int security_quotactl (int cmds, int type, int id,
2088 struct super_block * sb)
2089{
2090 return 0;
2091}
2092
2093static inline int security_quota_on (struct dentry * dentry)
2094{
2095 return 0;
2096}
2097
2098static inline int security_syslog(int type)
2099{
2100 return cap_syslog(type);
2101}
2102
2103static inline int security_settime(struct timespec *ts, struct timezone *tz)
2104{
2105 return cap_settime(ts, tz);
2106}
2107
2108static inline int security_vm_enough_memory(long pages)
2109{
2110 return cap_vm_enough_memory(pages);
2111}
2112
2113static inline int security_bprm_alloc (struct linux_binprm *bprm)
2114{
2115 return 0;
2116}
2117
2118static inline void security_bprm_free (struct linux_binprm *bprm)
2119{ }
2120
2121static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
2122{
2123 cap_bprm_apply_creds (bprm, unsafe);
2124}
2125
2126static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
2127{
2128 return;
2129}
2130
2131static inline int security_bprm_set (struct linux_binprm *bprm)
2132{
2133 return cap_bprm_set_security (bprm);
2134}
2135
2136static inline int security_bprm_check (struct linux_binprm *bprm)
2137{
2138 return 0;
2139}
2140
2141static inline int security_bprm_secureexec (struct linux_binprm *bprm)
2142{
2143 return cap_bprm_secureexec(bprm);
2144}
2145
2146static inline int security_sb_alloc (struct super_block *sb)
2147{
2148 return 0;
2149}
2150
2151static inline void security_sb_free (struct super_block *sb)
2152{ }
2153
2154static inline int security_sb_copy_data (struct file_system_type *type,
2155 void *orig, void *copy)
2156{
2157 return 0;
2158}
2159
2160static inline int security_sb_kern_mount (struct super_block *sb, void *data)
2161{
2162 return 0;
2163}
2164
2165static inline int security_sb_statfs (struct super_block *sb)
2166{
2167 return 0;
2168}
2169
2170static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
2171 char *type, unsigned long flags,
2172 void *data)
2173{
2174 return 0;
2175}
2176
2177static inline int security_sb_check_sb (struct vfsmount *mnt,
2178 struct nameidata *nd)
2179{
2180 return 0;
2181}
2182
2183static inline int security_sb_umount (struct vfsmount *mnt, int flags)
2184{
2185 return 0;
2186}
2187
2188static inline void security_sb_umount_close (struct vfsmount *mnt)
2189{ }
2190
2191static inline void security_sb_umount_busy (struct vfsmount *mnt)
2192{ }
2193
2194static inline void security_sb_post_remount (struct vfsmount *mnt,
2195 unsigned long flags, void *data)
2196{ }
2197
2198static inline void security_sb_post_mountroot (void)
2199{ }
2200
2201static inline void security_sb_post_addmount (struct vfsmount *mnt,
2202 struct nameidata *mountpoint_nd)
2203{ }
2204
2205static inline int security_sb_pivotroot (struct nameidata *old_nd,
2206 struct nameidata *new_nd)
2207{
2208 return 0;
2209}
2210
2211static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
2212 struct nameidata *new_nd)
2213{ }
2214
2215static inline int security_inode_alloc (struct inode *inode)
2216{
2217 return 0;
2218}
2219
2220static inline void security_inode_free (struct inode *inode)
2221{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002222
2223static inline int security_inode_init_security (struct inode *inode,
2224 struct inode *dir,
2225 char **name,
2226 void **value,
2227 size_t *len)
2228{
2229 return -EOPNOTSUPP;
2230}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002231
2232static inline int security_inode_create (struct inode *dir,
2233 struct dentry *dentry,
2234 int mode)
2235{
2236 return 0;
2237}
2238
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239static inline int security_inode_link (struct dentry *old_dentry,
2240 struct inode *dir,
2241 struct dentry *new_dentry)
2242{
2243 return 0;
2244}
2245
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246static inline int security_inode_unlink (struct inode *dir,
2247 struct dentry *dentry)
2248{
2249 return 0;
2250}
2251
2252static inline int security_inode_symlink (struct inode *dir,
2253 struct dentry *dentry,
2254 const char *old_name)
2255{
2256 return 0;
2257}
2258
Linus Torvalds1da177e2005-04-16 15:20:36 -07002259static inline int security_inode_mkdir (struct inode *dir,
2260 struct dentry *dentry,
2261 int mode)
2262{
2263 return 0;
2264}
2265
Linus Torvalds1da177e2005-04-16 15:20:36 -07002266static inline int security_inode_rmdir (struct inode *dir,
2267 struct dentry *dentry)
2268{
2269 return 0;
2270}
2271
2272static inline int security_inode_mknod (struct inode *dir,
2273 struct dentry *dentry,
2274 int mode, dev_t dev)
2275{
2276 return 0;
2277}
2278
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279static inline int security_inode_rename (struct inode *old_dir,
2280 struct dentry *old_dentry,
2281 struct inode *new_dir,
2282 struct dentry *new_dentry)
2283{
2284 return 0;
2285}
2286
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287static inline int security_inode_readlink (struct dentry *dentry)
2288{
2289 return 0;
2290}
2291
2292static inline int security_inode_follow_link (struct dentry *dentry,
2293 struct nameidata *nd)
2294{
2295 return 0;
2296}
2297
2298static inline int security_inode_permission (struct inode *inode, int mask,
2299 struct nameidata *nd)
2300{
2301 return 0;
2302}
2303
2304static inline int security_inode_setattr (struct dentry *dentry,
2305 struct iattr *attr)
2306{
2307 return 0;
2308}
2309
2310static inline int security_inode_getattr (struct vfsmount *mnt,
2311 struct dentry *dentry)
2312{
2313 return 0;
2314}
2315
2316static inline void security_inode_delete (struct inode *inode)
2317{ }
2318
2319static inline int security_inode_setxattr (struct dentry *dentry, char *name,
2320 void *value, size_t size, int flags)
2321{
2322 return cap_inode_setxattr(dentry, name, value, size, flags);
2323}
2324
2325static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
2326 void *value, size_t size, int flags)
2327{ }
2328
2329static inline int security_inode_getxattr (struct dentry *dentry, char *name)
2330{
2331 return 0;
2332}
2333
2334static inline int security_inode_listxattr (struct dentry *dentry)
2335{
2336 return 0;
2337}
2338
2339static inline int security_inode_removexattr (struct dentry *dentry, char *name)
2340{
2341 return cap_inode_removexattr(dentry, name);
2342}
2343
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00002344static inline const char *security_inode_xattr_getsuffix (void)
2345{
2346 return NULL ;
2347}
2348
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00002349static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void *buffer, size_t size, int err)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002350{
2351 return -EOPNOTSUPP;
2352}
2353
2354static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2355{
2356 return -EOPNOTSUPP;
2357}
2358
2359static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2360{
2361 return 0;
2362}
2363
2364static inline int security_file_permission (struct file *file, int mask)
2365{
2366 return 0;
2367}
2368
2369static inline int security_file_alloc (struct file *file)
2370{
2371 return 0;
2372}
2373
2374static inline void security_file_free (struct file *file)
2375{ }
2376
2377static inline int security_file_ioctl (struct file *file, unsigned int cmd,
2378 unsigned long arg)
2379{
2380 return 0;
2381}
2382
2383static inline int security_file_mmap (struct file *file, unsigned long reqprot,
2384 unsigned long prot,
2385 unsigned long flags)
2386{
2387 return 0;
2388}
2389
2390static inline int security_file_mprotect (struct vm_area_struct *vma,
2391 unsigned long reqprot,
2392 unsigned long prot)
2393{
2394 return 0;
2395}
2396
2397static inline int security_file_lock (struct file *file, unsigned int cmd)
2398{
2399 return 0;
2400}
2401
2402static inline int security_file_fcntl (struct file *file, unsigned int cmd,
2403 unsigned long arg)
2404{
2405 return 0;
2406}
2407
2408static inline int security_file_set_fowner (struct file *file)
2409{
2410 return 0;
2411}
2412
2413static inline int security_file_send_sigiotask (struct task_struct *tsk,
2414 struct fown_struct *fown,
2415 int sig)
2416{
2417 return 0;
2418}
2419
2420static inline int security_file_receive (struct file *file)
2421{
2422 return 0;
2423}
2424
2425static inline int security_task_create (unsigned long clone_flags)
2426{
2427 return 0;
2428}
2429
2430static inline int security_task_alloc (struct task_struct *p)
2431{
2432 return 0;
2433}
2434
2435static inline void security_task_free (struct task_struct *p)
2436{ }
2437
2438static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
2439 int flags)
2440{
2441 return 0;
2442}
2443
2444static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
2445 uid_t old_suid, int flags)
2446{
2447 return cap_task_post_setuid (old_ruid, old_euid, old_suid, flags);
2448}
2449
2450static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
2451 int flags)
2452{
2453 return 0;
2454}
2455
2456static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
2457{
2458 return 0;
2459}
2460
2461static inline int security_task_getpgid (struct task_struct *p)
2462{
2463 return 0;
2464}
2465
2466static inline int security_task_getsid (struct task_struct *p)
2467{
2468 return 0;
2469}
2470
2471static inline int security_task_setgroups (struct group_info *group_info)
2472{
2473 return 0;
2474}
2475
2476static inline int security_task_setnice (struct task_struct *p, int nice)
2477{
2478 return 0;
2479}
2480
2481static inline int security_task_setrlimit (unsigned int resource,
2482 struct rlimit *new_rlim)
2483{
2484 return 0;
2485}
2486
2487static inline int security_task_setscheduler (struct task_struct *p,
2488 int policy,
2489 struct sched_param *lp)
2490{
2491 return 0;
2492}
2493
2494static inline int security_task_getscheduler (struct task_struct *p)
2495{
2496 return 0;
2497}
2498
2499static inline int security_task_kill (struct task_struct *p,
2500 struct siginfo *info, int sig)
2501{
2502 return 0;
2503}
2504
2505static inline int security_task_wait (struct task_struct *p)
2506{
2507 return 0;
2508}
2509
2510static inline int security_task_prctl (int option, unsigned long arg2,
2511 unsigned long arg3,
2512 unsigned long arg4,
2513 unsigned long arg5)
2514{
2515 return 0;
2516}
2517
2518static inline void security_task_reparent_to_init (struct task_struct *p)
2519{
2520 cap_task_reparent_to_init (p);
2521}
2522
2523static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2524{ }
2525
2526static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
2527 short flag)
2528{
2529 return 0;
2530}
2531
2532static inline int security_msg_msg_alloc (struct msg_msg * msg)
2533{
2534 return 0;
2535}
2536
2537static inline void security_msg_msg_free (struct msg_msg * msg)
2538{ }
2539
2540static inline int security_msg_queue_alloc (struct msg_queue *msq)
2541{
2542 return 0;
2543}
2544
2545static inline void security_msg_queue_free (struct msg_queue *msq)
2546{ }
2547
2548static inline int security_msg_queue_associate (struct msg_queue * msq,
2549 int msqflg)
2550{
2551 return 0;
2552}
2553
2554static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
2555{
2556 return 0;
2557}
2558
2559static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
2560 struct msg_msg * msg, int msqflg)
2561{
2562 return 0;
2563}
2564
2565static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
2566 struct msg_msg * msg,
2567 struct task_struct * target,
2568 long type, int mode)
2569{
2570 return 0;
2571}
2572
2573static inline int security_shm_alloc (struct shmid_kernel *shp)
2574{
2575 return 0;
2576}
2577
2578static inline void security_shm_free (struct shmid_kernel *shp)
2579{ }
2580
2581static inline int security_shm_associate (struct shmid_kernel * shp,
2582 int shmflg)
2583{
2584 return 0;
2585}
2586
2587static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
2588{
2589 return 0;
2590}
2591
2592static inline int security_shm_shmat (struct shmid_kernel * shp,
2593 char __user *shmaddr, int shmflg)
2594{
2595 return 0;
2596}
2597
2598static inline int security_sem_alloc (struct sem_array *sma)
2599{
2600 return 0;
2601}
2602
2603static inline void security_sem_free (struct sem_array *sma)
2604{ }
2605
2606static inline int security_sem_associate (struct sem_array * sma, int semflg)
2607{
2608 return 0;
2609}
2610
2611static inline int security_sem_semctl (struct sem_array * sma, int cmd)
2612{
2613 return 0;
2614}
2615
2616static inline int security_sem_semop (struct sem_array * sma,
2617 struct sembuf * sops, unsigned nsops,
2618 int alter)
2619{
2620 return 0;
2621}
2622
2623static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
2624{ }
2625
2626static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
2627{
2628 return -EINVAL;
2629}
2630
2631static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2632{
2633 return -EINVAL;
2634}
2635
2636static inline int security_netlink_send (struct sock *sk, struct sk_buff *skb)
2637{
2638 return cap_netlink_send (sk, skb);
2639}
2640
2641static inline int security_netlink_recv (struct sk_buff *skb)
2642{
2643 return cap_netlink_recv (skb);
2644}
2645
Randy Dunlaped5a9272006-02-01 03:05:00 -08002646static inline struct dentry *securityfs_create_dir(const char *name,
2647 struct dentry *parent)
2648{
2649 return ERR_PTR(-ENODEV);
2650}
2651
2652static inline struct dentry *securityfs_create_file(const char *name,
2653 mode_t mode,
2654 struct dentry *parent,
2655 void *data,
2656 struct file_operations *fops)
2657{
2658 return ERR_PTR(-ENODEV);
2659}
2660
2661static inline void securityfs_remove(struct dentry *dentry)
2662{
2663}
2664
Linus Torvalds1da177e2005-04-16 15:20:36 -07002665#endif /* CONFIG_SECURITY */
2666
2667#ifdef CONFIG_SECURITY_NETWORK
2668static inline int security_unix_stream_connect(struct socket * sock,
2669 struct socket * other,
2670 struct sock * newsk)
2671{
2672 return security_ops->unix_stream_connect(sock, other, newsk);
2673}
2674
2675
2676static inline int security_unix_may_send(struct socket * sock,
2677 struct socket * other)
2678{
2679 return security_ops->unix_may_send(sock, other);
2680}
2681
2682static inline int security_socket_create (int family, int type,
2683 int protocol, int kern)
2684{
2685 return security_ops->socket_create(family, type, protocol, kern);
2686}
2687
2688static inline void security_socket_post_create(struct socket * sock,
2689 int family,
2690 int type,
2691 int protocol, int kern)
2692{
2693 security_ops->socket_post_create(sock, family, type,
2694 protocol, kern);
2695}
2696
2697static inline int security_socket_bind(struct socket * sock,
2698 struct sockaddr * address,
2699 int addrlen)
2700{
2701 return security_ops->socket_bind(sock, address, addrlen);
2702}
2703
2704static inline int security_socket_connect(struct socket * sock,
2705 struct sockaddr * address,
2706 int addrlen)
2707{
2708 return security_ops->socket_connect(sock, address, addrlen);
2709}
2710
2711static inline int security_socket_listen(struct socket * sock, int backlog)
2712{
2713 return security_ops->socket_listen(sock, backlog);
2714}
2715
2716static inline int security_socket_accept(struct socket * sock,
2717 struct socket * newsock)
2718{
2719 return security_ops->socket_accept(sock, newsock);
2720}
2721
2722static inline void security_socket_post_accept(struct socket * sock,
2723 struct socket * newsock)
2724{
2725 security_ops->socket_post_accept(sock, newsock);
2726}
2727
2728static inline int security_socket_sendmsg(struct socket * sock,
2729 struct msghdr * msg, int size)
2730{
2731 return security_ops->socket_sendmsg(sock, msg, size);
2732}
2733
2734static inline int security_socket_recvmsg(struct socket * sock,
2735 struct msghdr * msg, int size,
2736 int flags)
2737{
2738 return security_ops->socket_recvmsg(sock, msg, size, flags);
2739}
2740
2741static inline int security_socket_getsockname(struct socket * sock)
2742{
2743 return security_ops->socket_getsockname(sock);
2744}
2745
2746static inline int security_socket_getpeername(struct socket * sock)
2747{
2748 return security_ops->socket_getpeername(sock);
2749}
2750
2751static inline int security_socket_getsockopt(struct socket * sock,
2752 int level, int optname)
2753{
2754 return security_ops->socket_getsockopt(sock, level, optname);
2755}
2756
2757static inline int security_socket_setsockopt(struct socket * sock,
2758 int level, int optname)
2759{
2760 return security_ops->socket_setsockopt(sock, level, optname);
2761}
2762
2763static inline int security_socket_shutdown(struct socket * sock, int how)
2764{
2765 return security_ops->socket_shutdown(sock, how);
2766}
2767
2768static inline int security_sock_rcv_skb (struct sock * sk,
2769 struct sk_buff * skb)
2770{
2771 return security_ops->socket_sock_rcv_skb (sk, skb);
2772}
2773
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002774static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2775 int __user *optlen, unsigned len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002776{
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002777 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
2778}
2779
2780static inline int security_socket_getpeersec_dgram(struct sk_buff *skb, char **secdata,
2781 u32 *seclen)
2782{
2783 return security_ops->socket_getpeersec_dgram(skb, secdata, seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002784}
2785
Al Virodd0fc662005-10-07 07:46:04 +01002786static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002787{
2788 return security_ops->sk_alloc_security(sk, family, priority);
2789}
2790
2791static inline void security_sk_free(struct sock *sk)
2792{
2793 return security_ops->sk_free_security(sk);
2794}
Trent Jaegerdf718372005-12-13 23:12:27 -08002795
2796static inline unsigned int security_sk_sid(struct sock *sk, struct flowi *fl, u8 dir)
2797{
2798 return security_ops->sk_getsid(sk, fl, dir);
2799}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002800#else /* CONFIG_SECURITY_NETWORK */
2801static inline int security_unix_stream_connect(struct socket * sock,
2802 struct socket * other,
2803 struct sock * newsk)
2804{
2805 return 0;
2806}
2807
2808static inline int security_unix_may_send(struct socket * sock,
2809 struct socket * other)
2810{
2811 return 0;
2812}
2813
2814static inline int security_socket_create (int family, int type,
2815 int protocol, int kern)
2816{
2817 return 0;
2818}
2819
2820static inline void security_socket_post_create(struct socket * sock,
2821 int family,
2822 int type,
2823 int protocol, int kern)
2824{
2825}
2826
2827static inline int security_socket_bind(struct socket * sock,
2828 struct sockaddr * address,
2829 int addrlen)
2830{
2831 return 0;
2832}
2833
2834static inline int security_socket_connect(struct socket * sock,
2835 struct sockaddr * address,
2836 int addrlen)
2837{
2838 return 0;
2839}
2840
2841static inline int security_socket_listen(struct socket * sock, int backlog)
2842{
2843 return 0;
2844}
2845
2846static inline int security_socket_accept(struct socket * sock,
2847 struct socket * newsock)
2848{
2849 return 0;
2850}
2851
2852static inline void security_socket_post_accept(struct socket * sock,
2853 struct socket * newsock)
2854{
2855}
2856
2857static inline int security_socket_sendmsg(struct socket * sock,
2858 struct msghdr * msg, int size)
2859{
2860 return 0;
2861}
2862
2863static inline int security_socket_recvmsg(struct socket * sock,
2864 struct msghdr * msg, int size,
2865 int flags)
2866{
2867 return 0;
2868}
2869
2870static inline int security_socket_getsockname(struct socket * sock)
2871{
2872 return 0;
2873}
2874
2875static inline int security_socket_getpeername(struct socket * sock)
2876{
2877 return 0;
2878}
2879
2880static inline int security_socket_getsockopt(struct socket * sock,
2881 int level, int optname)
2882{
2883 return 0;
2884}
2885
2886static inline int security_socket_setsockopt(struct socket * sock,
2887 int level, int optname)
2888{
2889 return 0;
2890}
2891
2892static inline int security_socket_shutdown(struct socket * sock, int how)
2893{
2894 return 0;
2895}
2896static inline int security_sock_rcv_skb (struct sock * sk,
2897 struct sk_buff * skb)
2898{
2899 return 0;
2900}
2901
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002902static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2903 int __user *optlen, unsigned len)
2904{
2905 return -ENOPROTOOPT;
2906}
2907
2908static inline int security_socket_getpeersec_dgram(struct sk_buff *skb, char **secdata,
2909 u32 *seclen)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002910{
2911 return -ENOPROTOOPT;
2912}
2913
Al Virodd0fc662005-10-07 07:46:04 +01002914static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002915{
2916 return 0;
2917}
2918
2919static inline void security_sk_free(struct sock *sk)
2920{
2921}
Trent Jaegerdf718372005-12-13 23:12:27 -08002922
2923static inline unsigned int security_sk_sid(struct sock *sk, struct flowi *fl, u8 dir)
2924{
2925 return 0;
2926}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002927#endif /* CONFIG_SECURITY_NETWORK */
2928
Trent Jaegerdf718372005-12-13 23:12:27 -08002929#ifdef CONFIG_SECURITY_NETWORK_XFRM
2930static inline int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
2931{
2932 return security_ops->xfrm_policy_alloc_security(xp, sec_ctx);
2933}
2934
2935static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
2936{
2937 return security_ops->xfrm_policy_clone_security(old, new);
2938}
2939
2940static inline void security_xfrm_policy_free(struct xfrm_policy *xp)
2941{
2942 security_ops->xfrm_policy_free_security(xp);
2943}
2944
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002945static inline int security_xfrm_policy_delete(struct xfrm_policy *xp)
2946{
2947 return security_ops->xfrm_policy_delete_security(xp);
2948}
2949
Trent Jaegerdf718372005-12-13 23:12:27 -08002950static inline int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
2951{
2952 return security_ops->xfrm_state_alloc_security(x, sec_ctx);
2953}
2954
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002955static inline int security_xfrm_state_delete(struct xfrm_state *x)
2956{
2957 return security_ops->xfrm_state_delete_security(x);
2958}
2959
Trent Jaegerdf718372005-12-13 23:12:27 -08002960static inline void security_xfrm_state_free(struct xfrm_state *x)
2961{
2962 security_ops->xfrm_state_free_security(x);
2963}
2964
2965static inline int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir)
2966{
2967 return security_ops->xfrm_policy_lookup(xp, sk_sid, dir);
2968}
2969#else /* CONFIG_SECURITY_NETWORK_XFRM */
2970static inline int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
2971{
2972 return 0;
2973}
2974
2975static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
2976{
2977 return 0;
2978}
2979
2980static inline void security_xfrm_policy_free(struct xfrm_policy *xp)
2981{
2982}
2983
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002984static inline int security_xfrm_policy_delete(struct xfrm_policy *xp)
2985{
2986 return 0;
2987}
2988
Trent Jaegerdf718372005-12-13 23:12:27 -08002989static inline int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
2990{
2991 return 0;
2992}
2993
2994static inline void security_xfrm_state_free(struct xfrm_state *x)
2995{
2996}
2997
David S. Miller6f68dc32006-06-08 23:58:52 -07002998static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002999{
3000 return 0;
3001}
3002
Trent Jaegerdf718372005-12-13 23:12:27 -08003003static inline int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir)
3004{
3005 return 0;
3006}
3007#endif /* CONFIG_SECURITY_NETWORK_XFRM */
3008
David Howells29db9192005-10-30 15:02:44 -08003009#ifdef CONFIG_KEYS
3010#ifdef CONFIG_SECURITY
3011static inline int security_key_alloc(struct key *key)
3012{
3013 return security_ops->key_alloc(key);
3014}
3015
3016static inline void security_key_free(struct key *key)
3017{
3018 security_ops->key_free(key);
3019}
3020
3021static inline int security_key_permission(key_ref_t key_ref,
3022 struct task_struct *context,
3023 key_perm_t perm)
3024{
3025 return security_ops->key_permission(key_ref, context, perm);
3026}
3027
3028#else
3029
3030static inline int security_key_alloc(struct key *key)
3031{
3032 return 0;
3033}
3034
3035static inline void security_key_free(struct key *key)
3036{
3037}
3038
3039static inline int security_key_permission(key_ref_t key_ref,
3040 struct task_struct *context,
3041 key_perm_t perm)
3042{
3043 return 0;
3044}
3045
3046#endif
3047#endif /* CONFIG_KEYS */
3048
Linus Torvalds1da177e2005-04-16 15:20:36 -07003049#endif /* ! __LINUX_SECURITY_H */
3050