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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>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -070034#include <linux/xfrm.h>
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -070035#include <net/flow.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
37struct ctl_table;
38
39/*
40 * These functions are in security/capability.c and are used
41 * as the default capabilities functions
42 */
43extern int cap_capable (struct task_struct *tsk, int cap);
44extern int cap_settime (struct timespec *ts, struct timezone *tz);
45extern int cap_ptrace (struct task_struct *parent, struct task_struct *child);
46extern int cap_capget (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
47extern int cap_capset_check (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
48extern void cap_capset_set (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
49extern int cap_bprm_set_security (struct linux_binprm *bprm);
50extern void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe);
51extern int cap_bprm_secureexec(struct linux_binprm *bprm);
52extern int cap_inode_setxattr(struct dentry *dentry, char *name, void *value, size_t size, int flags);
53extern int cap_inode_removexattr(struct dentry *dentry, char *name);
54extern int cap_task_post_setuid (uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags);
55extern void cap_task_reparent_to_init (struct task_struct *p);
56extern int cap_syslog (int type);
57extern int cap_vm_enough_memory (long pages);
58
59struct msghdr;
60struct sk_buff;
61struct sock;
62struct sockaddr;
63struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -080064struct flowi;
65struct dst_entry;
66struct xfrm_selector;
67struct xfrm_policy;
68struct xfrm_state;
69struct xfrm_user_sec_ctx;
Linus Torvalds1da177e2005-04-16 15:20:36 -070070
71extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
Darrel Goeddelc7bdb542006-06-27 13:26:11 -070072extern int cap_netlink_recv(struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -070073
74/*
75 * Values used in the task_security_ops calls
76 */
77/* setuid or setgid, id0 == uid or gid */
78#define LSM_SETID_ID 1
79
80/* setreuid or setregid, id0 == real, id1 == eff */
81#define LSM_SETID_RE 2
82
83/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
84#define LSM_SETID_RES 4
85
86/* setfsuid or setfsgid, id0 == fsuid or fsgid */
87#define LSM_SETID_FS 8
88
89/* forward declares to avoid warnings */
90struct nfsctl_arg;
91struct sched_param;
92struct swap_info_struct;
Venkat Yekkirala4237c752006-07-24 23:32:50 -070093struct request_sock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070094
95/* bprm_apply_creds unsafe reasons */
96#define LSM_UNSAFE_SHARE 1
97#define LSM_UNSAFE_PTRACE 2
98#define LSM_UNSAFE_PTRACE_CAP 4
99
100#ifdef CONFIG_SECURITY
101
102/**
103 * struct security_operations - main security structure
104 *
105 * Security hooks for program execution operations.
106 *
107 * @bprm_alloc_security:
108 * Allocate and attach a security structure to the @bprm->security field.
109 * The security field is initialized to NULL when the bprm structure is
110 * allocated.
111 * @bprm contains the linux_binprm structure to be modified.
112 * Return 0 if operation was successful.
113 * @bprm_free_security:
114 * @bprm contains the linux_binprm structure to be modified.
115 * Deallocate and clear the @bprm->security field.
116 * @bprm_apply_creds:
117 * Compute and set the security attributes of a process being transformed
118 * by an execve operation based on the old attributes (current->security)
119 * and the information saved in @bprm->security by the set_security hook.
120 * Since this hook function (and its caller) are void, this hook can not
121 * return an error. However, it can leave the security attributes of the
122 * process unchanged if an access failure occurs at this point.
123 * bprm_apply_creds is called under task_lock. @unsafe indicates various
124 * reasons why it may be unsafe to change security state.
125 * @bprm contains the linux_binprm structure.
126 * @bprm_post_apply_creds:
127 * Runs after bprm_apply_creds with the task_lock dropped, so that
128 * functions which cannot be called safely under the task_lock can
129 * be used. This hook is a good place to perform state changes on
130 * the process such as closing open file descriptors to which access
131 * is no longer granted if the attributes were changed.
132 * Note that a security module might need to save state between
133 * bprm_apply_creds and bprm_post_apply_creds to store the decision
134 * on whether the process may proceed.
135 * @bprm contains the linux_binprm structure.
136 * @bprm_set_security:
137 * Save security information in the bprm->security field, typically based
138 * on information about the bprm->file, for later use by the apply_creds
139 * hook. This hook may also optionally check permissions (e.g. for
140 * transitions between security domains).
141 * This hook may be called multiple times during a single execve, e.g. for
142 * interpreters. The hook can tell whether it has already been called by
143 * checking to see if @bprm->security is non-NULL. If so, then the hook
144 * may decide either to retain the security information saved earlier or
145 * to replace it.
146 * @bprm contains the linux_binprm structure.
147 * Return 0 if the hook is successful and permission is granted.
148 * @bprm_check_security:
149 * This hook mediates the point when a search for a binary handler will
150 * begin. It allows a check the @bprm->security value which is set in
151 * the preceding set_security call. The primary difference from
152 * set_security is that the argv list and envp list are reliably
153 * available in @bprm. This hook may be called multiple times
154 * during a single execve; and in each pass set_security is called
155 * first.
156 * @bprm contains the linux_binprm structure.
157 * Return 0 if the hook is successful and permission is granted.
158 * @bprm_secureexec:
159 * Return a boolean value (0 or 1) indicating whether a "secure exec"
160 * is required. The flag is passed in the auxiliary table
161 * on the initial stack to the ELF interpreter to indicate whether libc
162 * should enable secure mode.
163 * @bprm contains the linux_binprm structure.
164 *
165 * Security hooks for filesystem operations.
166 *
167 * @sb_alloc_security:
168 * Allocate and attach a security structure to the sb->s_security field.
169 * The s_security field is initialized to NULL when the structure is
170 * allocated.
171 * @sb contains the super_block structure to be modified.
172 * Return 0 if operation was successful.
173 * @sb_free_security:
174 * Deallocate and clear the sb->s_security field.
175 * @sb contains the super_block structure to be modified.
176 * @sb_statfs:
David Howells726c3342006-06-23 02:02:58 -0700177 * Check permission before obtaining filesystem statistics for the @mnt
178 * mountpoint.
179 * @dentry is a handle on the superblock for the filesystem.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180 * Return 0 if permission is granted.
181 * @sb_mount:
182 * Check permission before an object specified by @dev_name is mounted on
183 * the mount point named by @nd. For an ordinary mount, @dev_name
184 * identifies a device if the file system type requires a device. For a
185 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
186 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
187 * pathname of the object being mounted.
188 * @dev_name contains the name for object being mounted.
189 * @nd contains the nameidata structure for mount point object.
190 * @type contains the filesystem type.
191 * @flags contains the mount flags.
192 * @data contains the filesystem-specific data.
193 * Return 0 if permission is granted.
194 * @sb_copy_data:
195 * Allow mount option data to be copied prior to parsing by the filesystem,
196 * so that the security module can extract security-specific mount
197 * options cleanly (a filesystem may modify the data e.g. with strsep()).
198 * This also allows the original mount data to be stripped of security-
199 * specific options to avoid having to make filesystems aware of them.
200 * @type the type of filesystem being mounted.
201 * @orig the original mount data copied from userspace.
202 * @copy copied data which will be passed to the security module.
203 * Returns 0 if the copy was successful.
204 * @sb_check_sb:
205 * Check permission before the device with superblock @mnt->sb is mounted
206 * on the mount point named by @nd.
207 * @mnt contains the vfsmount for device being mounted.
208 * @nd contains the nameidata object for the mount point.
209 * Return 0 if permission is granted.
210 * @sb_umount:
211 * Check permission before the @mnt file system is unmounted.
212 * @mnt contains the mounted file system.
213 * @flags contains the unmount flags, e.g. MNT_FORCE.
214 * Return 0 if permission is granted.
215 * @sb_umount_close:
216 * Close any files in the @mnt mounted filesystem that are held open by
217 * the security module. This hook is called during an umount operation
218 * prior to checking whether the filesystem is still busy.
219 * @mnt contains the mounted filesystem.
220 * @sb_umount_busy:
221 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
222 * any files that were closed by umount_close. This hook is called during
223 * an umount operation if the umount fails after a call to the
224 * umount_close hook.
225 * @mnt contains the mounted filesystem.
226 * @sb_post_remount:
227 * Update the security module's state when a filesystem is remounted.
228 * This hook is only called if the remount was successful.
229 * @mnt contains the mounted file system.
230 * @flags contains the new filesystem flags.
231 * @data contains the filesystem-specific data.
232 * @sb_post_mountroot:
233 * Update the security module's state when the root filesystem is mounted.
234 * This hook is only called if the mount was successful.
235 * @sb_post_addmount:
236 * Update the security module's state when a filesystem is mounted.
237 * This hook is called any time a mount is successfully grafetd to
238 * the tree.
239 * @mnt contains the mounted filesystem.
240 * @mountpoint_nd contains the nameidata structure for the mount point.
241 * @sb_pivotroot:
242 * Check permission before pivoting the root filesystem.
243 * @old_nd contains the nameidata structure for the new location of the current root (put_old).
244 * @new_nd contains the nameidata structure for the new root (new_root).
245 * Return 0 if permission is granted.
246 * @sb_post_pivotroot:
247 * Update module state after a successful pivot.
248 * @old_nd contains the nameidata structure for the old root.
249 * @new_nd contains the nameidata structure for the new root.
250 *
251 * Security hooks for inode operations.
252 *
253 * @inode_alloc_security:
254 * Allocate and attach a security structure to @inode->i_security. The
255 * i_security field is initialized to NULL when the inode structure is
256 * allocated.
257 * @inode contains the inode structure.
258 * Return 0 if operation was successful.
259 * @inode_free_security:
260 * @inode contains the inode structure.
261 * Deallocate the inode security structure and set @inode->i_security to
262 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700263 * @inode_init_security:
264 * Obtain the security attribute name suffix and value to set on a newly
265 * created inode and set up the incore security field for the new inode.
266 * This hook is called by the fs code as part of the inode creation
267 * transaction and provides for atomic labeling of the inode, unlike
268 * the post_create/mkdir/... hooks called by the VFS. The hook function
269 * is expected to allocate the name and value via kmalloc, with the caller
270 * being responsible for calling kfree after using them.
271 * If the security module does not use security attributes or does
272 * not wish to put a security attribute on this particular inode,
273 * then it should return -EOPNOTSUPP to skip this processing.
274 * @inode contains the inode structure of the newly created inode.
275 * @dir contains the inode structure of the parent directory.
276 * @name will be set to the allocated name suffix (e.g. selinux).
277 * @value will be set to the allocated attribute value.
278 * @len will be set to the length of the value.
279 * Returns 0 if @name and @value have been successfully set,
280 * -EOPNOTSUPP if no security attribute is needed, or
281 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 * @inode_create:
283 * Check permission to create a regular file.
284 * @dir contains inode structure of the parent of the new file.
285 * @dentry contains the dentry structure for the file to be created.
286 * @mode contains the file mode of the file to be created.
287 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288 * @inode_link:
289 * Check permission before creating a new hard link to a file.
290 * @old_dentry contains the dentry structure for an existing link to the file.
291 * @dir contains the inode structure of the parent directory of the new link.
292 * @new_dentry contains the dentry structure for the new link.
293 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 * @inode_unlink:
295 * Check the permission to remove a hard link to a file.
296 * @dir contains the inode structure of parent directory of the file.
297 * @dentry contains the dentry structure for file to be unlinked.
298 * Return 0 if permission is granted.
299 * @inode_symlink:
300 * Check the permission to create a symbolic link to a file.
301 * @dir contains the inode structure of parent directory of the symbolic link.
302 * @dentry contains the dentry structure of the symbolic link.
303 * @old_name contains the pathname of file.
304 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305 * @inode_mkdir:
306 * Check permissions to create a new directory in the existing directory
307 * associated with inode strcture @dir.
308 * @dir containst the inode structure of parent of the directory to be created.
309 * @dentry contains the dentry structure of new directory.
310 * @mode contains the mode of new directory.
311 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312 * @inode_rmdir:
313 * Check the permission to remove a directory.
314 * @dir contains the inode structure of parent of the directory to be removed.
315 * @dentry contains the dentry structure of directory to be removed.
316 * Return 0 if permission is granted.
317 * @inode_mknod:
318 * Check permissions when creating a special file (or a socket or a fifo
319 * file created via the mknod system call). Note that if mknod operation
320 * is being done for a regular file, then the create hook will be called
321 * and not this hook.
322 * @dir contains the inode structure of parent of the new file.
323 * @dentry contains the dentry structure of the new file.
324 * @mode contains the mode of the new file.
325 * @dev contains the the device number.
326 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 * @inode_rename:
328 * Check for permission to rename a file or directory.
329 * @old_dir contains the inode structure for parent of the old link.
330 * @old_dentry contains the dentry structure of the old link.
331 * @new_dir contains the inode structure for parent of the new link.
332 * @new_dentry contains the dentry structure of the new link.
333 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334 * @inode_readlink:
335 * Check the permission to read the symbolic link.
336 * @dentry contains the dentry structure for the file link.
337 * Return 0 if permission is granted.
338 * @inode_follow_link:
339 * Check permission to follow a symbolic link when looking up a pathname.
340 * @dentry contains the dentry structure for the link.
341 * @nd contains the nameidata structure for the parent directory.
342 * Return 0 if permission is granted.
343 * @inode_permission:
344 * Check permission before accessing an inode. This hook is called by the
345 * existing Linux permission function, so a security module can use it to
346 * provide additional checking for existing Linux permission checks.
347 * Notice that this hook is called when a file is opened (as well as many
348 * other operations), whereas the file_security_ops permission hook is
349 * called when the actual read/write operations are performed.
350 * @inode contains the inode structure to check.
351 * @mask contains the permission mask.
352 * @nd contains the nameidata (may be NULL).
353 * Return 0 if permission is granted.
354 * @inode_setattr:
355 * Check permission before setting file attributes. Note that the kernel
356 * call to notify_change is performed from several locations, whenever
357 * file attributes change (such as when a file is truncated, chown/chmod
358 * operations, transferring disk quotas, etc).
359 * @dentry contains the dentry structure for the file.
360 * @attr is the iattr structure containing the new file attributes.
361 * Return 0 if permission is granted.
362 * @inode_getattr:
363 * Check permission before obtaining file attributes.
364 * @mnt is the vfsmount where the dentry was looked up
365 * @dentry contains the dentry structure for the file.
366 * Return 0 if permission is granted.
367 * @inode_delete:
368 * @inode contains the inode structure for deleted inode.
369 * This hook is called when a deleted inode is released (i.e. an inode
370 * with no hard links has its use count drop to zero). A security module
371 * can use this hook to release any persistent label associated with the
372 * inode.
373 * @inode_setxattr:
374 * Check permission before setting the extended attributes
375 * @value identified by @name for @dentry.
376 * Return 0 if permission is granted.
377 * @inode_post_setxattr:
378 * Update inode security field after successful setxattr operation.
379 * @value identified by @name for @dentry.
380 * @inode_getxattr:
381 * Check permission before obtaining the extended attributes
382 * identified by @name for @dentry.
383 * Return 0 if permission is granted.
384 * @inode_listxattr:
385 * Check permission before obtaining the list of extended attribute
386 * names for @dentry.
387 * Return 0 if permission is granted.
388 * @inode_removexattr:
389 * Check permission before removing the extended attribute
390 * identified by @name for @dentry.
391 * Return 0 if permission is granted.
392 * @inode_getsecurity:
393 * Copy the extended attribute representation of the security label
394 * associated with @name for @inode into @buffer. @buffer may be
395 * NULL to request the size of the buffer required. @size indicates
396 * the size of @buffer in bytes. Note that @name is the remainder
397 * of the attribute name after the security. prefix has been removed.
James Morrisd381d8a2005-10-30 14:59:22 -0800398 * @err is the return value from the preceding fs getxattr call,
399 * and can be used by the security module to determine whether it
400 * should try and canonicalize the attribute value.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 * Return number of bytes used/required on success.
402 * @inode_setsecurity:
403 * Set the security label associated with @name for @inode from the
404 * extended attribute value @value. @size indicates the size of the
405 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
406 * Note that @name is the remainder of the attribute name after the
407 * security. prefix has been removed.
408 * Return 0 on success.
409 * @inode_listsecurity:
410 * Copy the extended attribute names for the security labels
411 * associated with @inode into @buffer. The maximum size of @buffer
412 * is specified by @buffer_size. @buffer may be NULL to request
413 * the size of the buffer required.
414 * Returns number of bytes used/required on success.
415 *
416 * Security hooks for file operations
417 *
418 * @file_permission:
419 * Check file permissions before accessing an open file. This hook is
420 * called by various operations that read or write files. A security
421 * module can use this hook to perform additional checking on these
422 * operations, e.g. to revalidate permissions on use to support privilege
423 * bracketing or policy changes. Notice that this hook is used when the
424 * actual read/write operations are performed, whereas the
425 * inode_security_ops hook is called when a file is opened (as well as
426 * many other operations).
427 * Caveat: Although this hook can be used to revalidate permissions for
428 * various system call operations that read or write files, it does not
429 * address the revalidation of permissions for memory-mapped files.
430 * Security modules must handle this separately if they need such
431 * revalidation.
432 * @file contains the file structure being accessed.
433 * @mask contains the requested permissions.
434 * Return 0 if permission is granted.
435 * @file_alloc_security:
436 * Allocate and attach a security structure to the file->f_security field.
437 * The security field is initialized to NULL when the structure is first
438 * created.
439 * @file contains the file structure to secure.
440 * Return 0 if the hook is successful and permission is granted.
441 * @file_free_security:
442 * Deallocate and free any security structures stored in file->f_security.
443 * @file contains the file structure being modified.
444 * @file_ioctl:
445 * @file contains the file structure.
446 * @cmd contains the operation to perform.
447 * @arg contains the operational arguments.
448 * Check permission for an ioctl operation on @file. Note that @arg can
449 * sometimes represents a user space pointer; in other cases, it may be a
450 * simple integer value. When @arg represents a user space pointer, it
451 * should never be used by the security module.
452 * Return 0 if permission is granted.
453 * @file_mmap :
454 * Check permissions for a mmap operation. The @file may be NULL, e.g.
455 * if mapping anonymous memory.
456 * @file contains the file structure for file to map (may be NULL).
457 * @reqprot contains the protection requested by the application.
458 * @prot contains the protection that will be applied by the kernel.
459 * @flags contains the operational flags.
460 * Return 0 if permission is granted.
461 * @file_mprotect:
462 * Check permissions before changing memory access permissions.
463 * @vma contains the memory region to modify.
464 * @reqprot contains the protection requested by the application.
465 * @prot contains the protection that will be applied by the kernel.
466 * Return 0 if permission is granted.
467 * @file_lock:
468 * Check permission before performing file locking operations.
469 * Note: this hook mediates both flock and fcntl style locks.
470 * @file contains the file structure.
471 * @cmd contains the posix-translated lock operation to perform
472 * (e.g. F_RDLCK, F_WRLCK).
473 * Return 0 if permission is granted.
474 * @file_fcntl:
475 * Check permission before allowing the file operation specified by @cmd
476 * from being performed on the file @file. Note that @arg can sometimes
477 * represents a user space pointer; in other cases, it may be a simple
478 * integer value. When @arg represents a user space pointer, it should
479 * never be used by the security module.
480 * @file contains the file structure.
481 * @cmd contains the operation to be performed.
482 * @arg contains the operational arguments.
483 * Return 0 if permission is granted.
484 * @file_set_fowner:
485 * Save owner security information (typically from current->security) in
486 * file->f_security for later use by the send_sigiotask hook.
487 * @file contains the file structure to update.
488 * Return 0 on success.
489 * @file_send_sigiotask:
490 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
491 * process @tsk. Note that this hook is sometimes called from interrupt.
492 * Note that the fown_struct, @fown, is never outside the context of a
493 * struct file, so the file structure (and associated security information)
494 * can always be obtained:
495 * (struct file *)((long)fown - offsetof(struct file,f_owner));
496 * @tsk contains the structure of task receiving signal.
497 * @fown contains the file owner information.
498 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
499 * Return 0 if permission is granted.
500 * @file_receive:
501 * This hook allows security modules to control the ability of a process
502 * to receive an open file descriptor via socket IPC.
503 * @file contains the file structure being received.
504 * Return 0 if permission is granted.
505 *
506 * Security hooks for task operations.
507 *
508 * @task_create:
509 * Check permission before creating a child process. See the clone(2)
510 * manual page for definitions of the @clone_flags.
511 * @clone_flags contains the flags indicating what should be shared.
512 * Return 0 if permission is granted.
513 * @task_alloc_security:
514 * @p contains the task_struct for child process.
515 * Allocate and attach a security structure to the p->security field. The
516 * security field is initialized to NULL when the task structure is
517 * allocated.
518 * Return 0 if operation was successful.
519 * @task_free_security:
520 * @p contains the task_struct for process.
521 * Deallocate and clear the p->security field.
522 * @task_setuid:
523 * Check permission before setting one or more of the user identity
524 * attributes of the current process. The @flags parameter indicates
525 * which of the set*uid system calls invoked this hook and how to
526 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
527 * definitions at the beginning of this file for the @flags values and
528 * their meanings.
529 * @id0 contains a uid.
530 * @id1 contains a uid.
531 * @id2 contains a uid.
532 * @flags contains one of the LSM_SETID_* values.
533 * Return 0 if permission is granted.
534 * @task_post_setuid:
535 * Update the module's state after setting one or more of the user
536 * identity attributes of the current process. The @flags parameter
537 * indicates which of the set*uid system calls invoked this hook. If
538 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
539 * parameters are not used.
540 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
541 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
542 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
543 * @flags contains one of the LSM_SETID_* values.
544 * Return 0 on success.
545 * @task_setgid:
546 * Check permission before setting one or more of the group identity
547 * attributes of the current process. The @flags parameter indicates
548 * which of the set*gid system calls invoked this hook and how to
549 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
550 * definitions at the beginning of this file for the @flags values and
551 * their meanings.
552 * @id0 contains a gid.
553 * @id1 contains a gid.
554 * @id2 contains a gid.
555 * @flags contains one of the LSM_SETID_* values.
556 * Return 0 if permission is granted.
557 * @task_setpgid:
558 * Check permission before setting the process group identifier of the
559 * process @p to @pgid.
560 * @p contains the task_struct for process being modified.
561 * @pgid contains the new pgid.
562 * Return 0 if permission is granted.
563 * @task_getpgid:
564 * Check permission before getting the process group identifier of the
565 * process @p.
566 * @p contains the task_struct for the process.
567 * Return 0 if permission is granted.
568 * @task_getsid:
569 * Check permission before getting the session identifier of the process
570 * @p.
571 * @p contains the task_struct for the process.
572 * Return 0 if permission is granted.
David Quigleyf9008e42006-06-30 01:55:46 -0700573 * @task_getsecid:
574 * Retrieve the security identifier of the process @p.
575 * @p contains the task_struct for the process and place is into @secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 * @task_setgroups:
577 * Check permission before setting the supplementary group set of the
578 * current process.
579 * @group_info contains the new group information.
580 * Return 0 if permission is granted.
581 * @task_setnice:
582 * Check permission before setting the nice value of @p to @nice.
583 * @p contains the task_struct of process.
584 * @nice contains the new nice value.
585 * Return 0 if permission is granted.
James Morris03e68062006-06-23 02:03:58 -0700586 * @task_setioprio
587 * Check permission before setting the ioprio value of @p to @ioprio.
588 * @p contains the task_struct of process.
589 * @ioprio contains the new ioprio value
590 * Return 0 if permission is granted.
David Quigleya1836a42006-06-30 01:55:49 -0700591 * @task_getioprio
592 * Check permission before getting the ioprio value of @p.
593 * @p contains the task_struct of process.
594 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 * @task_setrlimit:
596 * Check permission before setting the resource limits of the current
597 * process for @resource to @new_rlim. The old resource limit values can
598 * be examined by dereferencing (current->signal->rlim + resource).
599 * @resource contains the resource whose limit is being set.
600 * @new_rlim contains the new limits for @resource.
601 * Return 0 if permission is granted.
602 * @task_setscheduler:
603 * Check permission before setting scheduling policy and/or parameters of
604 * process @p based on @policy and @lp.
605 * @p contains the task_struct for process.
606 * @policy contains the scheduling policy.
607 * @lp contains the scheduling parameters.
608 * Return 0 if permission is granted.
609 * @task_getscheduler:
610 * Check permission before obtaining scheduling information for process
611 * @p.
612 * @p contains the task_struct for process.
613 * Return 0 if permission is granted.
David Quigley35601542006-06-23 02:04:01 -0700614 * @task_movememory
615 * Check permission before moving memory owned by process @p.
616 * @p contains the task_struct for process.
617 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618 * @task_kill:
619 * Check permission before sending signal @sig to @p. @info can be NULL,
620 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
621 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
622 * from the kernel and should typically be permitted.
623 * SIGIO signals are handled separately by the send_sigiotask hook in
624 * file_security_ops.
625 * @p contains the task_struct for process.
626 * @info contains the signal information.
627 * @sig contains the signal value.
David Quigleyf9008e42006-06-30 01:55:46 -0700628 * @secid contains the sid of the process where the signal originated
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 * Return 0 if permission is granted.
630 * @task_wait:
631 * Check permission before allowing a process to reap a child process @p
632 * and collect its status information.
633 * @p contains the task_struct for process.
634 * Return 0 if permission is granted.
635 * @task_prctl:
636 * Check permission before performing a process control operation on the
637 * current process.
638 * @option contains the operation.
639 * @arg2 contains a argument.
640 * @arg3 contains a argument.
641 * @arg4 contains a argument.
642 * @arg5 contains a argument.
643 * Return 0 if permission is granted.
644 * @task_reparent_to_init:
645 * Set the security attributes in @p->security for a kernel thread that
646 * is being reparented to the init task.
647 * @p contains the task_struct for the kernel thread.
648 * @task_to_inode:
649 * Set the security attributes for an inode based on an associated task's
650 * security attributes, e.g. for /proc/pid inodes.
651 * @p contains the task_struct for the task.
652 * @inode contains the inode structure for the inode.
653 *
654 * Security hooks for Netlink messaging.
655 *
656 * @netlink_send:
657 * Save security information for a netlink message so that permission
658 * checking can be performed when the message is processed. The security
659 * information can be saved using the eff_cap field of the
660 * netlink_skb_parms structure. Also may be used to provide fine
661 * grained control over message transmission.
662 * @sk associated sock of task sending the message.,
663 * @skb contains the sk_buff structure for the netlink message.
664 * Return 0 if the information was successfully saved and message
665 * is allowed to be transmitted.
666 * @netlink_recv:
667 * Check permission before processing the received netlink message in
668 * @skb.
669 * @skb contains the sk_buff structure for the netlink message.
Darrel Goeddelc7bdb542006-06-27 13:26:11 -0700670 * @cap indicates the capability required
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 * Return 0 if permission is granted.
672 *
673 * Security hooks for Unix domain networking.
674 *
675 * @unix_stream_connect:
676 * Check permissions before establishing a Unix domain stream connection
677 * between @sock and @other.
678 * @sock contains the socket structure.
679 * @other contains the peer socket structure.
680 * Return 0 if permission is granted.
681 * @unix_may_send:
682 * Check permissions before connecting or sending datagrams from @sock to
683 * @other.
684 * @sock contains the socket structure.
685 * @sock contains the peer socket structure.
686 * Return 0 if permission is granted.
687 *
688 * The @unix_stream_connect and @unix_may_send hooks were necessary because
689 * Linux provides an alternative to the conventional file name space for Unix
690 * domain sockets. Whereas binding and connecting to sockets in the file name
691 * space is mediated by the typical file permissions (and caught by the mknod
692 * and permission hooks in inode_security_ops), binding and connecting to
693 * sockets in the abstract name space is completely unmediated. Sufficient
694 * control of Unix domain sockets in the abstract name space isn't possible
695 * using only the socket layer hooks, since we need to know the actual target
696 * socket, which is not looked up until we are inside the af_unix code.
697 *
698 * Security hooks for socket operations.
699 *
700 * @socket_create:
701 * Check permissions prior to creating a new socket.
702 * @family contains the requested protocol family.
703 * @type contains the requested communications type.
704 * @protocol contains the requested protocol.
705 * @kern set to 1 if a kernel socket.
706 * Return 0 if permission is granted.
707 * @socket_post_create:
708 * This hook allows a module to update or allocate a per-socket security
709 * structure. Note that the security field was not added directly to the
710 * socket structure, but rather, the socket security information is stored
711 * in the associated inode. Typically, the inode alloc_security hook will
712 * allocate and and attach security information to
713 * sock->inode->i_security. This hook may be used to update the
714 * sock->inode->i_security field with additional information that wasn't
715 * available when the inode was allocated.
716 * @sock contains the newly created socket structure.
717 * @family contains the requested protocol family.
718 * @type contains the requested communications type.
719 * @protocol contains the requested protocol.
720 * @kern set to 1 if a kernel socket.
721 * @socket_bind:
722 * Check permission before socket protocol layer bind operation is
723 * performed and the socket @sock is bound to the address specified in the
724 * @address parameter.
725 * @sock contains the socket structure.
726 * @address contains the address to bind to.
727 * @addrlen contains the length of address.
728 * Return 0 if permission is granted.
729 * @socket_connect:
730 * Check permission before socket protocol layer connect operation
731 * attempts to connect socket @sock to a remote address, @address.
732 * @sock contains the socket structure.
733 * @address contains the address of remote endpoint.
734 * @addrlen contains the length of address.
735 * Return 0 if permission is granted.
736 * @socket_listen:
737 * Check permission before socket protocol layer listen operation.
738 * @sock contains the socket structure.
739 * @backlog contains the maximum length for the pending connection queue.
740 * Return 0 if permission is granted.
741 * @socket_accept:
742 * Check permission before accepting a new connection. Note that the new
743 * socket, @newsock, has been created and some information copied to it,
744 * but the accept operation has not actually been performed.
745 * @sock contains the listening socket structure.
746 * @newsock contains the newly created server socket for connection.
747 * Return 0 if permission is granted.
748 * @socket_post_accept:
749 * This hook allows a security module to copy security
750 * information into the newly created socket's inode.
751 * @sock contains the listening socket structure.
752 * @newsock contains the newly created server socket for connection.
753 * @socket_sendmsg:
754 * Check permission before transmitting a message to another socket.
755 * @sock contains the socket structure.
756 * @msg contains the message to be transmitted.
757 * @size contains the size of message.
758 * Return 0 if permission is granted.
759 * @socket_recvmsg:
760 * Check permission before receiving a message from a socket.
761 * @sock contains the socket structure.
762 * @msg contains the message structure.
763 * @size contains the size of message structure.
764 * @flags contains the operational flags.
765 * Return 0 if permission is granted.
766 * @socket_getsockname:
767 * Check permission before the local address (name) of the socket object
768 * @sock is retrieved.
769 * @sock contains the socket structure.
770 * Return 0 if permission is granted.
771 * @socket_getpeername:
772 * Check permission before the remote address (name) of a socket object
773 * @sock is retrieved.
774 * @sock contains the socket structure.
775 * Return 0 if permission is granted.
776 * @socket_getsockopt:
777 * Check permissions before retrieving the options associated with socket
778 * @sock.
779 * @sock contains the socket structure.
780 * @level contains the protocol level to retrieve option from.
781 * @optname contains the name of option to retrieve.
782 * Return 0 if permission is granted.
783 * @socket_setsockopt:
784 * Check permissions before setting the options associated with socket
785 * @sock.
786 * @sock contains the socket structure.
787 * @level contains the protocol level to set options for.
788 * @optname contains the name of the option to set.
789 * Return 0 if permission is granted.
790 * @socket_shutdown:
791 * Checks permission before all or part of a connection on the socket
792 * @sock is shut down.
793 * @sock contains the socket structure.
794 * @how contains the flag indicating how future sends and receives are handled.
795 * Return 0 if permission is granted.
796 * @socket_sock_rcv_skb:
797 * Check permissions on incoming network packets. This hook is distinct
798 * from Netfilter's IP input hooks since it is the first time that the
799 * incoming sk_buff @skb has been associated with a particular socket, @sk.
800 * @sk contains the sock (not socket) associated with the incoming sk_buff.
801 * @skb contains the incoming network data.
802 * @socket_getpeersec:
803 * This hook allows the security module to provide peer socket security
804 * state to userspace via getsockopt SO_GETPEERSEC.
805 * @sock is the local socket.
806 * @optval userspace memory where the security state is to be copied.
807 * @optlen userspace int where the module should copy the actual length
808 * of the security state.
809 * @len as input is the maximum length to copy to userspace provided
810 * by the caller.
811 * Return 0 if all is well, otherwise, typical getsockopt return
812 * values.
813 * @sk_alloc_security:
814 * Allocate and attach a security structure to the sk->sk_security field,
815 * which is used to copy security attributes between local stream sockets.
816 * @sk_free_security:
817 * Deallocate security structure.
Venkat Yekkirala892c1412006-08-04 23:08:56 -0700818 * @sk_clone_security:
819 * Clone/copy security structure.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700820 * @sk_getsecid:
821 * Retrieve the LSM-specific secid for the sock to enable caching of network
Trent Jaegerdf718372005-12-13 23:12:27 -0800822 * authorizations.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700823 * @sock_graft:
824 * Sets the socket's isec sid to the sock's sid.
825 * @inet_conn_request:
826 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
827 * @inet_csk_clone:
828 * Sets the new child socket's sid to the openreq sid.
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600829 * @inet_conn_established:
830 * Sets the connection's peersid to the secmark on skb.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700831 * @req_classify_flow:
832 * Sets the flow's sid to the openreq sid.
Trent Jaegerdf718372005-12-13 23:12:27 -0800833 *
834 * Security hooks for XFRM operations.
835 *
836 * @xfrm_policy_alloc_security:
837 * @xp contains the xfrm_policy being added to Security Policy Database
838 * used by the XFRM system.
839 * @sec_ctx contains the security context information being provided by
840 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700841 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600842 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -0800843 * Return 0 if operation was successful (memory to allocate, legal context)
844 * @xfrm_policy_clone_security:
845 * @old contains an existing xfrm_policy in the SPD.
846 * @new contains a new xfrm_policy being cloned from old.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700847 * Allocate a security structure to the new->security field
848 * that contains the information from the old->security field.
Trent Jaegerdf718372005-12-13 23:12:27 -0800849 * Return 0 if operation was successful (memory to allocate).
850 * @xfrm_policy_free_security:
851 * @xp contains the xfrm_policy
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700852 * Deallocate xp->security.
853 * @xfrm_policy_delete_security:
854 * @xp contains the xfrm_policy.
855 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800856 * @xfrm_state_alloc_security:
857 * @x contains the xfrm_state being added to the Security Association
858 * Database by the XFRM system.
859 * @sec_ctx contains the security context information being provided by
860 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700861 * @secid contains the secid from which to take the mls portion of the context.
862 * Allocate a security structure to the x->security field; the security
863 * field is initialized to NULL when the xfrm_state is allocated. Set the
864 * context to correspond to either sec_ctx or polsec, with the mls portion
865 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -0800866 * Return 0 if operation was successful (memory to allocate, legal context).
867 * @xfrm_state_free_security:
868 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700869 * Deallocate x->security.
870 * @xfrm_state_delete_security:
871 * @x contains the xfrm_state.
872 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800873 * @xfrm_policy_lookup:
874 * @xp contains the xfrm_policy for which the access control is being
875 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700876 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -0800877 * access to the policy xp.
878 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700879 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -0800880 * XFRMs on a packet. The hook is called when selecting either a
881 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -0500882 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
883 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700884 * @xfrm_state_pol_flow_match:
885 * @x contains the state to match.
886 * @xp contains the policy to check for a match.
887 * @fl contains the flow to check for a match.
888 * Return 1 if there is a match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700889 * @xfrm_decode_session:
890 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700891 * @secid points to the flow key secid to set.
892 * @ckall says if all xfrms used should be checked for same secid.
893 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894 *
David Howells29db9192005-10-30 15:02:44 -0800895 * Security hooks affecting all Key Management operations
896 *
897 * @key_alloc:
898 * Permit allocation of a key and assign security data. Note that key does
899 * not have a serial number assigned at this point.
900 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -0700901 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -0800902 * Return 0 if permission is granted, -ve error otherwise.
903 * @key_free:
904 * Notification of destruction; free security data.
905 * @key points to the key.
906 * No return value.
907 * @key_permission:
908 * See whether a specific operational right is granted to a process on a
909 * key.
910 * @key_ref refers to the key (key pointer + possession attribute bit).
911 * @context points to the process to provide the context against which to
912 * evaluate the security data on the key.
913 * @perm describes the combination of permissions required of this key.
914 * Return 1 if permission granted, 0 if permission denied and -ve it the
915 * normal permissions model should be effected.
916 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917 * Security hooks affecting all System V IPC operations.
918 *
919 * @ipc_permission:
920 * Check permissions for access to IPC
921 * @ipcp contains the kernel IPC permission structure
922 * @flag contains the desired (requested) permission set
923 * Return 0 if permission is granted.
924 *
925 * Security hooks for individual messages held in System V IPC message queues
926 * @msg_msg_alloc_security:
927 * Allocate and attach a security structure to the msg->security field.
928 * The security field is initialized to NULL when the structure is first
929 * created.
930 * @msg contains the message structure to be modified.
931 * Return 0 if operation was successful and permission is granted.
932 * @msg_msg_free_security:
933 * Deallocate the security structure for this message.
934 * @msg contains the message structure to be modified.
935 *
936 * Security hooks for System V IPC Message Queues
937 *
938 * @msg_queue_alloc_security:
939 * Allocate and attach a security structure to the
940 * msq->q_perm.security field. The security field is initialized to
941 * NULL when the structure is first created.
942 * @msq contains the message queue structure to be modified.
943 * Return 0 if operation was successful and permission is granted.
944 * @msg_queue_free_security:
945 * Deallocate security structure for this message queue.
946 * @msq contains the message queue structure to be modified.
947 * @msg_queue_associate:
948 * Check permission when a message queue is requested through the
949 * msgget system call. This hook is only called when returning the
950 * message queue identifier for an existing message queue, not when a
951 * new message queue is created.
952 * @msq contains the message queue to act upon.
953 * @msqflg contains the operation control flags.
954 * Return 0 if permission is granted.
955 * @msg_queue_msgctl:
956 * Check permission when a message control operation specified by @cmd
957 * is to be performed on the message queue @msq.
958 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
959 * @msq contains the message queue to act upon. May be NULL.
960 * @cmd contains the operation to be performed.
961 * Return 0 if permission is granted.
962 * @msg_queue_msgsnd:
963 * Check permission before a message, @msg, is enqueued on the message
964 * queue, @msq.
965 * @msq contains the message queue to send message to.
966 * @msg contains the message to be enqueued.
967 * @msqflg contains operational flags.
968 * Return 0 if permission is granted.
969 * @msg_queue_msgrcv:
970 * Check permission before a message, @msg, is removed from the message
971 * queue, @msq. The @target task structure contains a pointer to the
972 * process that will be receiving the message (not equal to the current
973 * process when inline receives are being performed).
974 * @msq contains the message queue to retrieve message from.
975 * @msg contains the message destination.
976 * @target contains the task structure for recipient process.
977 * @type contains the type of message requested.
978 * @mode contains the operational flags.
979 * Return 0 if permission is granted.
980 *
981 * Security hooks for System V Shared Memory Segments
982 *
983 * @shm_alloc_security:
984 * Allocate and attach a security structure to the shp->shm_perm.security
985 * field. The security field is initialized to NULL when the structure is
986 * first created.
987 * @shp contains the shared memory structure to be modified.
988 * Return 0 if operation was successful and permission is granted.
989 * @shm_free_security:
990 * Deallocate the security struct for this memory segment.
991 * @shp contains the shared memory structure to be modified.
992 * @shm_associate:
993 * Check permission when a shared memory region is requested through the
994 * shmget system call. This hook is only called when returning the shared
995 * memory region identifier for an existing region, not when a new shared
996 * memory region is created.
997 * @shp contains the shared memory structure to be modified.
998 * @shmflg contains the operation control flags.
999 * Return 0 if permission is granted.
1000 * @shm_shmctl:
1001 * Check permission when a shared memory control operation specified by
1002 * @cmd is to be performed on the shared memory region @shp.
1003 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1004 * @shp contains shared memory structure to be modified.
1005 * @cmd contains the operation to be performed.
1006 * Return 0 if permission is granted.
1007 * @shm_shmat:
1008 * Check permissions prior to allowing the shmat system call to attach the
1009 * shared memory segment @shp to the data segment of the calling process.
1010 * The attaching address is specified by @shmaddr.
1011 * @shp contains the shared memory structure to be modified.
1012 * @shmaddr contains the address to attach memory region to.
1013 * @shmflg contains the operational flags.
1014 * Return 0 if permission is granted.
1015 *
1016 * Security hooks for System V Semaphores
1017 *
1018 * @sem_alloc_security:
1019 * Allocate and attach a security structure to the sma->sem_perm.security
1020 * field. The security field is initialized to NULL when the structure is
1021 * first created.
1022 * @sma contains the semaphore structure
1023 * Return 0 if operation was successful and permission is granted.
1024 * @sem_free_security:
1025 * deallocate security struct for this semaphore
1026 * @sma contains the semaphore structure.
1027 * @sem_associate:
1028 * Check permission when a semaphore is requested through the semget
1029 * system call. This hook is only called when returning the semaphore
1030 * identifier for an existing semaphore, not when a new one must be
1031 * created.
1032 * @sma contains the semaphore structure.
1033 * @semflg contains the operation control flags.
1034 * Return 0 if permission is granted.
1035 * @sem_semctl:
1036 * Check permission when a semaphore operation specified by @cmd is to be
1037 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
1038 * IPC_INFO or SEM_INFO.
1039 * @sma contains the semaphore structure. May be NULL.
1040 * @cmd contains the operation to be performed.
1041 * Return 0 if permission is granted.
1042 * @sem_semop
1043 * Check permissions before performing operations on members of the
1044 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1045 * may be modified.
1046 * @sma contains the semaphore structure.
1047 * @sops contains the operations to perform.
1048 * @nsops contains the number of operations to perform.
1049 * @alter contains the flag indicating whether changes are to be made.
1050 * Return 0 if permission is granted.
1051 *
1052 * @ptrace:
1053 * Check permission before allowing the @parent process to trace the
1054 * @child process.
1055 * Security modules may also want to perform a process tracing check
1056 * during an execve in the set_security or apply_creds hooks of
1057 * binprm_security_ops if the process is being traced and its security
1058 * attributes would be changed by the execve.
1059 * @parent contains the task_struct structure for parent process.
1060 * @child contains the task_struct structure for child process.
1061 * Return 0 if permission is granted.
1062 * @capget:
1063 * Get the @effective, @inheritable, and @permitted capability sets for
1064 * the @target process. The hook may also perform permission checking to
1065 * determine if the current process is allowed to see the capability sets
1066 * of the @target process.
1067 * @target contains the task_struct structure for target process.
1068 * @effective contains the effective capability set.
1069 * @inheritable contains the inheritable capability set.
1070 * @permitted contains the permitted capability set.
1071 * Return 0 if the capability sets were successfully obtained.
1072 * @capset_check:
1073 * Check permission before setting the @effective, @inheritable, and
1074 * @permitted capability sets for the @target process.
1075 * Caveat: @target is also set to current if a set of processes is
1076 * specified (i.e. all processes other than current and init or a
1077 * particular process group). Hence, the capset_set hook may need to
1078 * revalidate permission to the actual target process.
1079 * @target contains the task_struct structure for target process.
1080 * @effective contains the effective capability set.
1081 * @inheritable contains the inheritable capability set.
1082 * @permitted contains the permitted capability set.
1083 * Return 0 if permission is granted.
1084 * @capset_set:
1085 * Set the @effective, @inheritable, and @permitted capability sets for
1086 * the @target process. Since capset_check cannot always check permission
1087 * to the real @target process, this hook may also perform permission
1088 * checking to determine if the current process is allowed to set the
1089 * capability sets of the @target process. However, this hook has no way
1090 * of returning an error due to the structure of the sys_capset code.
1091 * @target contains the task_struct structure for target process.
1092 * @effective contains the effective capability set.
1093 * @inheritable contains the inheritable capability set.
1094 * @permitted contains the permitted capability set.
Chris Wright12b59892006-03-25 03:07:41 -08001095 * @capable:
1096 * Check whether the @tsk process has the @cap capability.
1097 * @tsk contains the task_struct for the process.
1098 * @cap contains the capability <include/linux/capability.h>.
1099 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100 * @acct:
1101 * Check permission before enabling or disabling process accounting. If
1102 * accounting is being enabled, then @file refers to the open file used to
1103 * store accounting records. If accounting is being disabled, then @file
1104 * is NULL.
1105 * @file contains the file structure for the accounting file (may be NULL).
1106 * Return 0 if permission is granted.
1107 * @sysctl:
1108 * Check permission before accessing the @table sysctl variable in the
1109 * manner specified by @op.
1110 * @table contains the ctl_table structure for the sysctl variable.
1111 * @op contains the operation (001 = search, 002 = write, 004 = read).
1112 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113 * @syslog:
1114 * Check permission before accessing the kernel message ring or changing
1115 * logging to the console.
1116 * See the syslog(2) manual page for an explanation of the @type values.
1117 * @type contains the type of action.
1118 * Return 0 if permission is granted.
1119 * @settime:
1120 * Check permission to change the system time.
1121 * struct timespec and timezone are defined in include/linux/time.h
1122 * @ts contains new time
1123 * @tz contains new timezone
1124 * Return 0 if permission is granted.
1125 * @vm_enough_memory:
1126 * Check permissions for allocating a new virtual mapping.
1127 * @pages contains the number of pages.
1128 * Return 0 if permission is granted.
1129 *
1130 * @register_security:
1131 * allow module stacking.
1132 * @name contains the name of the security module being stacked.
1133 * @ops contains a pointer to the struct security_operations of the module to stack.
1134 * @unregister_security:
1135 * remove a stacked module.
1136 * @name contains the name of the security module being unstacked.
1137 * @ops contains a pointer to the struct security_operations of the module to unstack.
1138 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001139 * @secid_to_secctx:
1140 * Convert secid to security context.
1141 * @secid contains the security ID.
1142 * @secdata contains the pointer that stores the converted security context.
1143 *
1144 * @release_secctx:
1145 * Release the security context.
1146 * @secdata contains the security context.
1147 * @seclen contains the length of the security context.
1148 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149 * This is the main security structure.
1150 */
1151struct security_operations {
1152 int (*ptrace) (struct task_struct * parent, struct task_struct * child);
1153 int (*capget) (struct task_struct * target,
1154 kernel_cap_t * effective,
1155 kernel_cap_t * inheritable, kernel_cap_t * permitted);
1156 int (*capset_check) (struct task_struct * target,
1157 kernel_cap_t * effective,
1158 kernel_cap_t * inheritable,
1159 kernel_cap_t * permitted);
1160 void (*capset_set) (struct task_struct * target,
1161 kernel_cap_t * effective,
1162 kernel_cap_t * inheritable,
1163 kernel_cap_t * permitted);
Chris Wright12b59892006-03-25 03:07:41 -08001164 int (*capable) (struct task_struct * tsk, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165 int (*acct) (struct file * file);
1166 int (*sysctl) (struct ctl_table * table, int op);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167 int (*quotactl) (int cmds, int type, int id, struct super_block * sb);
1168 int (*quota_on) (struct dentry * dentry);
1169 int (*syslog) (int type);
1170 int (*settime) (struct timespec *ts, struct timezone *tz);
1171 int (*vm_enough_memory) (long pages);
1172
1173 int (*bprm_alloc_security) (struct linux_binprm * bprm);
1174 void (*bprm_free_security) (struct linux_binprm * bprm);
1175 void (*bprm_apply_creds) (struct linux_binprm * bprm, int unsafe);
1176 void (*bprm_post_apply_creds) (struct linux_binprm * bprm);
1177 int (*bprm_set_security) (struct linux_binprm * bprm);
1178 int (*bprm_check_security) (struct linux_binprm * bprm);
1179 int (*bprm_secureexec) (struct linux_binprm * bprm);
1180
1181 int (*sb_alloc_security) (struct super_block * sb);
1182 void (*sb_free_security) (struct super_block * sb);
1183 int (*sb_copy_data)(struct file_system_type *type,
1184 void *orig, void *copy);
1185 int (*sb_kern_mount) (struct super_block *sb, void *data);
David Howells726c3342006-06-23 02:02:58 -07001186 int (*sb_statfs) (struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187 int (*sb_mount) (char *dev_name, struct nameidata * nd,
1188 char *type, unsigned long flags, void *data);
1189 int (*sb_check_sb) (struct vfsmount * mnt, struct nameidata * nd);
1190 int (*sb_umount) (struct vfsmount * mnt, int flags);
1191 void (*sb_umount_close) (struct vfsmount * mnt);
1192 void (*sb_umount_busy) (struct vfsmount * mnt);
1193 void (*sb_post_remount) (struct vfsmount * mnt,
1194 unsigned long flags, void *data);
1195 void (*sb_post_mountroot) (void);
1196 void (*sb_post_addmount) (struct vfsmount * mnt,
1197 struct nameidata * mountpoint_nd);
1198 int (*sb_pivotroot) (struct nameidata * old_nd,
1199 struct nameidata * new_nd);
1200 void (*sb_post_pivotroot) (struct nameidata * old_nd,
1201 struct nameidata * new_nd);
1202
1203 int (*inode_alloc_security) (struct inode *inode);
1204 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001205 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1206 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207 int (*inode_create) (struct inode *dir,
1208 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209 int (*inode_link) (struct dentry *old_dentry,
1210 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1212 int (*inode_symlink) (struct inode *dir,
1213 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1216 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1217 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1219 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220 int (*inode_readlink) (struct dentry *dentry);
1221 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1222 int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd);
1223 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1224 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1225 void (*inode_delete) (struct inode *inode);
1226 int (*inode_setxattr) (struct dentry *dentry, char *name, void *value,
1227 size_t size, int flags);
1228 void (*inode_post_setxattr) (struct dentry *dentry, char *name, void *value,
1229 size_t size, int flags);
1230 int (*inode_getxattr) (struct dentry *dentry, char *name);
1231 int (*inode_listxattr) (struct dentry *dentry);
1232 int (*inode_removexattr) (struct dentry *dentry, char *name);
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00001233 const char *(*inode_xattr_getsuffix) (void);
1234 int (*inode_getsecurity)(const struct inode *inode, const char *name, void *buffer, size_t size, int err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 int (*inode_setsecurity)(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1236 int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size);
1237
1238 int (*file_permission) (struct file * file, int mask);
1239 int (*file_alloc_security) (struct file * file);
1240 void (*file_free_security) (struct file * file);
1241 int (*file_ioctl) (struct file * file, unsigned int cmd,
1242 unsigned long arg);
1243 int (*file_mmap) (struct file * file,
1244 unsigned long reqprot,
1245 unsigned long prot, unsigned long flags);
1246 int (*file_mprotect) (struct vm_area_struct * vma,
1247 unsigned long reqprot,
1248 unsigned long prot);
1249 int (*file_lock) (struct file * file, unsigned int cmd);
1250 int (*file_fcntl) (struct file * file, unsigned int cmd,
1251 unsigned long arg);
1252 int (*file_set_fowner) (struct file * file);
1253 int (*file_send_sigiotask) (struct task_struct * tsk,
1254 struct fown_struct * fown, int sig);
1255 int (*file_receive) (struct file * file);
1256
1257 int (*task_create) (unsigned long clone_flags);
1258 int (*task_alloc_security) (struct task_struct * p);
1259 void (*task_free_security) (struct task_struct * p);
1260 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1261 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1262 uid_t old_euid, uid_t old_suid, int flags);
1263 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1264 int (*task_setpgid) (struct task_struct * p, pid_t pgid);
1265 int (*task_getpgid) (struct task_struct * p);
1266 int (*task_getsid) (struct task_struct * p);
David Quigleyf9008e42006-06-30 01:55:46 -07001267 void (*task_getsecid) (struct task_struct * p, u32 * secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268 int (*task_setgroups) (struct group_info *group_info);
1269 int (*task_setnice) (struct task_struct * p, int nice);
James Morris03e68062006-06-23 02:03:58 -07001270 int (*task_setioprio) (struct task_struct * p, int ioprio);
David Quigleya1836a42006-06-30 01:55:49 -07001271 int (*task_getioprio) (struct task_struct * p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 int (*task_setrlimit) (unsigned int resource, struct rlimit * new_rlim);
1273 int (*task_setscheduler) (struct task_struct * p, int policy,
1274 struct sched_param * lp);
1275 int (*task_getscheduler) (struct task_struct * p);
David Quigley35601542006-06-23 02:04:01 -07001276 int (*task_movememory) (struct task_struct * p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277 int (*task_kill) (struct task_struct * p,
David Quigleyf9008e42006-06-30 01:55:46 -07001278 struct siginfo * info, int sig, u32 secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279 int (*task_wait) (struct task_struct * p);
1280 int (*task_prctl) (int option, unsigned long arg2,
1281 unsigned long arg3, unsigned long arg4,
1282 unsigned long arg5);
1283 void (*task_reparent_to_init) (struct task_struct * p);
1284 void (*task_to_inode)(struct task_struct *p, struct inode *inode);
1285
1286 int (*ipc_permission) (struct kern_ipc_perm * ipcp, short flag);
1287
1288 int (*msg_msg_alloc_security) (struct msg_msg * msg);
1289 void (*msg_msg_free_security) (struct msg_msg * msg);
1290
1291 int (*msg_queue_alloc_security) (struct msg_queue * msq);
1292 void (*msg_queue_free_security) (struct msg_queue * msq);
1293 int (*msg_queue_associate) (struct msg_queue * msq, int msqflg);
1294 int (*msg_queue_msgctl) (struct msg_queue * msq, int cmd);
1295 int (*msg_queue_msgsnd) (struct msg_queue * msq,
1296 struct msg_msg * msg, int msqflg);
1297 int (*msg_queue_msgrcv) (struct msg_queue * msq,
1298 struct msg_msg * msg,
1299 struct task_struct * target,
1300 long type, int mode);
1301
1302 int (*shm_alloc_security) (struct shmid_kernel * shp);
1303 void (*shm_free_security) (struct shmid_kernel * shp);
1304 int (*shm_associate) (struct shmid_kernel * shp, int shmflg);
1305 int (*shm_shmctl) (struct shmid_kernel * shp, int cmd);
1306 int (*shm_shmat) (struct shmid_kernel * shp,
1307 char __user *shmaddr, int shmflg);
1308
1309 int (*sem_alloc_security) (struct sem_array * sma);
1310 void (*sem_free_security) (struct sem_array * sma);
1311 int (*sem_associate) (struct sem_array * sma, int semflg);
1312 int (*sem_semctl) (struct sem_array * sma, int cmd);
1313 int (*sem_semop) (struct sem_array * sma,
1314 struct sembuf * sops, unsigned nsops, int alter);
1315
1316 int (*netlink_send) (struct sock * sk, struct sk_buff * skb);
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07001317 int (*netlink_recv) (struct sk_buff * skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318
1319 /* allow module stacking */
1320 int (*register_security) (const char *name,
1321 struct security_operations *ops);
1322 int (*unregister_security) (const char *name,
1323 struct security_operations *ops);
1324
1325 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1326
1327 int (*getprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1328 int (*setprocattr)(struct task_struct *p, char *name, void *value, size_t size);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001329 int (*secid_to_secctx)(u32 secid, char **secdata, u32 *seclen);
1330 void (*release_secctx)(char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001331
1332#ifdef CONFIG_SECURITY_NETWORK
1333 int (*unix_stream_connect) (struct socket * sock,
1334 struct socket * other, struct sock * newsk);
1335 int (*unix_may_send) (struct socket * sock, struct socket * other);
1336
1337 int (*socket_create) (int family, int type, int protocol, int kern);
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001338 int (*socket_post_create) (struct socket * sock, int family,
1339 int type, int protocol, int kern);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340 int (*socket_bind) (struct socket * sock,
1341 struct sockaddr * address, int addrlen);
1342 int (*socket_connect) (struct socket * sock,
1343 struct sockaddr * address, int addrlen);
1344 int (*socket_listen) (struct socket * sock, int backlog);
1345 int (*socket_accept) (struct socket * sock, struct socket * newsock);
1346 void (*socket_post_accept) (struct socket * sock,
1347 struct socket * newsock);
1348 int (*socket_sendmsg) (struct socket * sock,
1349 struct msghdr * msg, int size);
1350 int (*socket_recvmsg) (struct socket * sock,
1351 struct msghdr * msg, int size, int flags);
1352 int (*socket_getsockname) (struct socket * sock);
1353 int (*socket_getpeername) (struct socket * sock);
1354 int (*socket_getsockopt) (struct socket * sock, int level, int optname);
1355 int (*socket_setsockopt) (struct socket * sock, int level, int optname);
1356 int (*socket_shutdown) (struct socket * sock, int how);
1357 int (*socket_sock_rcv_skb) (struct sock * sk, struct sk_buff * skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001358 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001359 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001360 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001362 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001363 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Venkat Yekkirala4237c752006-07-24 23:32:50 -07001364 void (*sock_graft)(struct sock* sk, struct socket *parent);
1365 int (*inet_conn_request)(struct sock *sk, struct sk_buff *skb,
1366 struct request_sock *req);
1367 void (*inet_csk_clone)(struct sock *newsk, const struct request_sock *req);
Venkat Yekkirala6b877692006-11-08 17:04:09 -06001368 void (*inet_conn_established)(struct sock *sk, struct sk_buff *skb);
Venkat Yekkirala4237c752006-07-24 23:32:50 -07001369 void (*req_classify_flow)(const struct request_sock *req, struct flowi *fl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001371
Trent Jaegerdf718372005-12-13 23:12:27 -08001372#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07001373 int (*xfrm_policy_alloc_security) (struct xfrm_policy *xp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001374 struct xfrm_user_sec_ctx *sec_ctx);
Trent Jaegerdf718372005-12-13 23:12:27 -08001375 int (*xfrm_policy_clone_security) (struct xfrm_policy *old, struct xfrm_policy *new);
1376 void (*xfrm_policy_free_security) (struct xfrm_policy *xp);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001377 int (*xfrm_policy_delete_security) (struct xfrm_policy *xp);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001378 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001379 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001380 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001381 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001382 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001383 int (*xfrm_policy_lookup)(struct xfrm_policy *xp, u32 fl_secid, u8 dir);
1384 int (*xfrm_state_pol_flow_match)(struct xfrm_state *x,
1385 struct xfrm_policy *xp, struct flowi *fl);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001386 int (*xfrm_decode_session)(struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001387#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1388
David Howells29db9192005-10-30 15:02:44 -08001389 /* key management security hooks */
1390#ifdef CONFIG_KEYS
David Howells7e047ef2006-06-26 00:24:50 -07001391 int (*key_alloc)(struct key *key, struct task_struct *tsk, unsigned long flags);
David Howells29db9192005-10-30 15:02:44 -08001392 void (*key_free)(struct key *key);
1393 int (*key_permission)(key_ref_t key_ref,
1394 struct task_struct *context,
1395 key_perm_t perm);
1396
1397#endif /* CONFIG_KEYS */
1398
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399};
1400
1401/* global variables */
1402extern struct security_operations *security_ops;
1403
1404/* inline stuff */
1405static inline int security_ptrace (struct task_struct * parent, struct task_struct * child)
1406{
1407 return security_ops->ptrace (parent, child);
1408}
1409
1410static inline int security_capget (struct task_struct *target,
1411 kernel_cap_t *effective,
1412 kernel_cap_t *inheritable,
1413 kernel_cap_t *permitted)
1414{
1415 return security_ops->capget (target, effective, inheritable, permitted);
1416}
1417
1418static inline int security_capset_check (struct task_struct *target,
1419 kernel_cap_t *effective,
1420 kernel_cap_t *inheritable,
1421 kernel_cap_t *permitted)
1422{
1423 return security_ops->capset_check (target, effective, inheritable, permitted);
1424}
1425
1426static inline void security_capset_set (struct task_struct *target,
1427 kernel_cap_t *effective,
1428 kernel_cap_t *inheritable,
1429 kernel_cap_t *permitted)
1430{
1431 security_ops->capset_set (target, effective, inheritable, permitted);
1432}
1433
Chris Wright12b59892006-03-25 03:07:41 -08001434static inline int security_capable(struct task_struct *tsk, int cap)
1435{
1436 return security_ops->capable(tsk, cap);
1437}
1438
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439static inline int security_acct (struct file *file)
1440{
1441 return security_ops->acct (file);
1442}
1443
1444static inline int security_sysctl(struct ctl_table *table, int op)
1445{
1446 return security_ops->sysctl(table, op);
1447}
1448
1449static inline int security_quotactl (int cmds, int type, int id,
1450 struct super_block *sb)
1451{
1452 return security_ops->quotactl (cmds, type, id, sb);
1453}
1454
1455static inline int security_quota_on (struct dentry * dentry)
1456{
1457 return security_ops->quota_on (dentry);
1458}
1459
1460static inline int security_syslog(int type)
1461{
1462 return security_ops->syslog(type);
1463}
1464
1465static inline int security_settime(struct timespec *ts, struct timezone *tz)
1466{
1467 return security_ops->settime(ts, tz);
1468}
1469
1470
1471static inline int security_vm_enough_memory(long pages)
1472{
1473 return security_ops->vm_enough_memory(pages);
1474}
1475
1476static inline int security_bprm_alloc (struct linux_binprm *bprm)
1477{
1478 return security_ops->bprm_alloc_security (bprm);
1479}
1480static inline void security_bprm_free (struct linux_binprm *bprm)
1481{
1482 security_ops->bprm_free_security (bprm);
1483}
1484static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
1485{
1486 security_ops->bprm_apply_creds (bprm, unsafe);
1487}
1488static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
1489{
1490 security_ops->bprm_post_apply_creds (bprm);
1491}
1492static inline int security_bprm_set (struct linux_binprm *bprm)
1493{
1494 return security_ops->bprm_set_security (bprm);
1495}
1496
1497static inline int security_bprm_check (struct linux_binprm *bprm)
1498{
1499 return security_ops->bprm_check_security (bprm);
1500}
1501
1502static inline int security_bprm_secureexec (struct linux_binprm *bprm)
1503{
1504 return security_ops->bprm_secureexec (bprm);
1505}
1506
1507static inline int security_sb_alloc (struct super_block *sb)
1508{
1509 return security_ops->sb_alloc_security (sb);
1510}
1511
1512static inline void security_sb_free (struct super_block *sb)
1513{
1514 security_ops->sb_free_security (sb);
1515}
1516
1517static inline int security_sb_copy_data (struct file_system_type *type,
1518 void *orig, void *copy)
1519{
1520 return security_ops->sb_copy_data (type, orig, copy);
1521}
1522
1523static inline int security_sb_kern_mount (struct super_block *sb, void *data)
1524{
1525 return security_ops->sb_kern_mount (sb, data);
1526}
1527
David Howells726c3342006-06-23 02:02:58 -07001528static inline int security_sb_statfs (struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529{
David Howells726c3342006-06-23 02:02:58 -07001530 return security_ops->sb_statfs (dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531}
1532
1533static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
1534 char *type, unsigned long flags,
1535 void *data)
1536{
1537 return security_ops->sb_mount (dev_name, nd, type, flags, data);
1538}
1539
1540static inline int security_sb_check_sb (struct vfsmount *mnt,
1541 struct nameidata *nd)
1542{
1543 return security_ops->sb_check_sb (mnt, nd);
1544}
1545
1546static inline int security_sb_umount (struct vfsmount *mnt, int flags)
1547{
1548 return security_ops->sb_umount (mnt, flags);
1549}
1550
1551static inline void security_sb_umount_close (struct vfsmount *mnt)
1552{
1553 security_ops->sb_umount_close (mnt);
1554}
1555
1556static inline void security_sb_umount_busy (struct vfsmount *mnt)
1557{
1558 security_ops->sb_umount_busy (mnt);
1559}
1560
1561static inline void security_sb_post_remount (struct vfsmount *mnt,
1562 unsigned long flags, void *data)
1563{
1564 security_ops->sb_post_remount (mnt, flags, data);
1565}
1566
1567static inline void security_sb_post_mountroot (void)
1568{
1569 security_ops->sb_post_mountroot ();
1570}
1571
1572static inline void security_sb_post_addmount (struct vfsmount *mnt,
1573 struct nameidata *mountpoint_nd)
1574{
1575 security_ops->sb_post_addmount (mnt, mountpoint_nd);
1576}
1577
1578static inline int security_sb_pivotroot (struct nameidata *old_nd,
1579 struct nameidata *new_nd)
1580{
1581 return security_ops->sb_pivotroot (old_nd, new_nd);
1582}
1583
1584static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
1585 struct nameidata *new_nd)
1586{
1587 security_ops->sb_post_pivotroot (old_nd, new_nd);
1588}
1589
1590static inline int security_inode_alloc (struct inode *inode)
1591{
Alexey Dobriyan50462062006-09-29 02:00:01 -07001592 inode->i_security = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001593 return security_ops->inode_alloc_security (inode);
1594}
1595
1596static inline void security_inode_free (struct inode *inode)
1597{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598 security_ops->inode_free_security (inode);
1599}
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001600
1601static inline int security_inode_init_security (struct inode *inode,
1602 struct inode *dir,
1603 char **name,
1604 void **value,
1605 size_t *len)
1606{
1607 if (unlikely (IS_PRIVATE (inode)))
1608 return -EOPNOTSUPP;
1609 return security_ops->inode_init_security (inode, dir, name, value, len);
1610}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001611
1612static inline int security_inode_create (struct inode *dir,
1613 struct dentry *dentry,
1614 int mode)
1615{
1616 if (unlikely (IS_PRIVATE (dir)))
1617 return 0;
1618 return security_ops->inode_create (dir, dentry, mode);
1619}
1620
Linus Torvalds1da177e2005-04-16 15:20:36 -07001621static inline int security_inode_link (struct dentry *old_dentry,
1622 struct inode *dir,
1623 struct dentry *new_dentry)
1624{
1625 if (unlikely (IS_PRIVATE (old_dentry->d_inode)))
1626 return 0;
1627 return security_ops->inode_link (old_dentry, dir, new_dentry);
1628}
1629
Linus Torvalds1da177e2005-04-16 15:20:36 -07001630static inline int security_inode_unlink (struct inode *dir,
1631 struct dentry *dentry)
1632{
1633 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1634 return 0;
1635 return security_ops->inode_unlink (dir, dentry);
1636}
1637
1638static inline int security_inode_symlink (struct inode *dir,
1639 struct dentry *dentry,
1640 const char *old_name)
1641{
1642 if (unlikely (IS_PRIVATE (dir)))
1643 return 0;
1644 return security_ops->inode_symlink (dir, dentry, old_name);
1645}
1646
Linus Torvalds1da177e2005-04-16 15:20:36 -07001647static inline int security_inode_mkdir (struct inode *dir,
1648 struct dentry *dentry,
1649 int mode)
1650{
1651 if (unlikely (IS_PRIVATE (dir)))
1652 return 0;
1653 return security_ops->inode_mkdir (dir, dentry, mode);
1654}
1655
Linus Torvalds1da177e2005-04-16 15:20:36 -07001656static inline int security_inode_rmdir (struct inode *dir,
1657 struct dentry *dentry)
1658{
1659 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1660 return 0;
1661 return security_ops->inode_rmdir (dir, dentry);
1662}
1663
1664static inline int security_inode_mknod (struct inode *dir,
1665 struct dentry *dentry,
1666 int mode, dev_t dev)
1667{
1668 if (unlikely (IS_PRIVATE (dir)))
1669 return 0;
1670 return security_ops->inode_mknod (dir, dentry, mode, dev);
1671}
1672
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673static inline int security_inode_rename (struct inode *old_dir,
1674 struct dentry *old_dentry,
1675 struct inode *new_dir,
1676 struct dentry *new_dentry)
1677{
1678 if (unlikely (IS_PRIVATE (old_dentry->d_inode) ||
1679 (new_dentry->d_inode && IS_PRIVATE (new_dentry->d_inode))))
1680 return 0;
1681 return security_ops->inode_rename (old_dir, old_dentry,
1682 new_dir, new_dentry);
1683}
1684
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685static inline int security_inode_readlink (struct dentry *dentry)
1686{
1687 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1688 return 0;
1689 return security_ops->inode_readlink (dentry);
1690}
1691
1692static inline int security_inode_follow_link (struct dentry *dentry,
1693 struct nameidata *nd)
1694{
1695 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1696 return 0;
1697 return security_ops->inode_follow_link (dentry, nd);
1698}
1699
1700static inline int security_inode_permission (struct inode *inode, int mask,
1701 struct nameidata *nd)
1702{
1703 if (unlikely (IS_PRIVATE (inode)))
1704 return 0;
1705 return security_ops->inode_permission (inode, mask, nd);
1706}
1707
1708static inline int security_inode_setattr (struct dentry *dentry,
1709 struct iattr *attr)
1710{
1711 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1712 return 0;
1713 return security_ops->inode_setattr (dentry, attr);
1714}
1715
1716static inline int security_inode_getattr (struct vfsmount *mnt,
1717 struct dentry *dentry)
1718{
1719 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1720 return 0;
1721 return security_ops->inode_getattr (mnt, dentry);
1722}
1723
1724static inline void security_inode_delete (struct inode *inode)
1725{
1726 if (unlikely (IS_PRIVATE (inode)))
1727 return;
1728 security_ops->inode_delete (inode);
1729}
1730
1731static inline int security_inode_setxattr (struct dentry *dentry, char *name,
1732 void *value, size_t size, int flags)
1733{
1734 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1735 return 0;
1736 return security_ops->inode_setxattr (dentry, name, value, size, flags);
1737}
1738
1739static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
1740 void *value, size_t size, int flags)
1741{
1742 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1743 return;
1744 security_ops->inode_post_setxattr (dentry, name, value, size, flags);
1745}
1746
1747static inline int security_inode_getxattr (struct dentry *dentry, char *name)
1748{
1749 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1750 return 0;
1751 return security_ops->inode_getxattr (dentry, name);
1752}
1753
1754static inline int security_inode_listxattr (struct dentry *dentry)
1755{
1756 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1757 return 0;
1758 return security_ops->inode_listxattr (dentry);
1759}
1760
1761static inline int security_inode_removexattr (struct dentry *dentry, char *name)
1762{
1763 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1764 return 0;
1765 return security_ops->inode_removexattr (dentry, name);
1766}
1767
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00001768static inline const char *security_inode_xattr_getsuffix(void)
1769{
1770 return security_ops->inode_xattr_getsuffix();
1771}
1772
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00001773static 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 -07001774{
1775 if (unlikely (IS_PRIVATE (inode)))
1776 return 0;
James Morrisd381d8a2005-10-30 14:59:22 -08001777 return security_ops->inode_getsecurity(inode, name, buffer, size, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778}
1779
1780static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
1781{
1782 if (unlikely (IS_PRIVATE (inode)))
1783 return 0;
1784 return security_ops->inode_setsecurity(inode, name, value, size, flags);
1785}
1786
1787static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
1788{
1789 if (unlikely (IS_PRIVATE (inode)))
1790 return 0;
1791 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
1792}
1793
1794static inline int security_file_permission (struct file *file, int mask)
1795{
1796 return security_ops->file_permission (file, mask);
1797}
1798
1799static inline int security_file_alloc (struct file *file)
1800{
1801 return security_ops->file_alloc_security (file);
1802}
1803
1804static inline void security_file_free (struct file *file)
1805{
1806 security_ops->file_free_security (file);
1807}
1808
1809static inline int security_file_ioctl (struct file *file, unsigned int cmd,
1810 unsigned long arg)
1811{
1812 return security_ops->file_ioctl (file, cmd, arg);
1813}
1814
1815static inline int security_file_mmap (struct file *file, unsigned long reqprot,
1816 unsigned long prot,
1817 unsigned long flags)
1818{
1819 return security_ops->file_mmap (file, reqprot, prot, flags);
1820}
1821
1822static inline int security_file_mprotect (struct vm_area_struct *vma,
1823 unsigned long reqprot,
1824 unsigned long prot)
1825{
1826 return security_ops->file_mprotect (vma, reqprot, prot);
1827}
1828
1829static inline int security_file_lock (struct file *file, unsigned int cmd)
1830{
1831 return security_ops->file_lock (file, cmd);
1832}
1833
1834static inline int security_file_fcntl (struct file *file, unsigned int cmd,
1835 unsigned long arg)
1836{
1837 return security_ops->file_fcntl (file, cmd, arg);
1838}
1839
1840static inline int security_file_set_fowner (struct file *file)
1841{
1842 return security_ops->file_set_fowner (file);
1843}
1844
1845static inline int security_file_send_sigiotask (struct task_struct *tsk,
1846 struct fown_struct *fown,
1847 int sig)
1848{
1849 return security_ops->file_send_sigiotask (tsk, fown, sig);
1850}
1851
1852static inline int security_file_receive (struct file *file)
1853{
1854 return security_ops->file_receive (file);
1855}
1856
1857static inline int security_task_create (unsigned long clone_flags)
1858{
1859 return security_ops->task_create (clone_flags);
1860}
1861
1862static inline int security_task_alloc (struct task_struct *p)
1863{
1864 return security_ops->task_alloc_security (p);
1865}
1866
1867static inline void security_task_free (struct task_struct *p)
1868{
1869 security_ops->task_free_security (p);
1870}
1871
1872static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
1873 int flags)
1874{
1875 return security_ops->task_setuid (id0, id1, id2, flags);
1876}
1877
1878static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
1879 uid_t old_suid, int flags)
1880{
1881 return security_ops->task_post_setuid (old_ruid, old_euid, old_suid, flags);
1882}
1883
1884static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
1885 int flags)
1886{
1887 return security_ops->task_setgid (id0, id1, id2, flags);
1888}
1889
1890static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
1891{
1892 return security_ops->task_setpgid (p, pgid);
1893}
1894
1895static inline int security_task_getpgid (struct task_struct *p)
1896{
1897 return security_ops->task_getpgid (p);
1898}
1899
1900static inline int security_task_getsid (struct task_struct *p)
1901{
1902 return security_ops->task_getsid (p);
1903}
1904
David Quigleyf9008e42006-06-30 01:55:46 -07001905static inline void security_task_getsecid (struct task_struct *p, u32 *secid)
1906{
1907 security_ops->task_getsecid (p, secid);
1908}
1909
Linus Torvalds1da177e2005-04-16 15:20:36 -07001910static inline int security_task_setgroups (struct group_info *group_info)
1911{
1912 return security_ops->task_setgroups (group_info);
1913}
1914
1915static inline int security_task_setnice (struct task_struct *p, int nice)
1916{
1917 return security_ops->task_setnice (p, nice);
1918}
1919
James Morris03e68062006-06-23 02:03:58 -07001920static inline int security_task_setioprio (struct task_struct *p, int ioprio)
1921{
1922 return security_ops->task_setioprio (p, ioprio);
1923}
1924
David Quigleya1836a42006-06-30 01:55:49 -07001925static inline int security_task_getioprio (struct task_struct *p)
1926{
1927 return security_ops->task_getioprio (p);
1928}
1929
Linus Torvalds1da177e2005-04-16 15:20:36 -07001930static inline int security_task_setrlimit (unsigned int resource,
1931 struct rlimit *new_rlim)
1932{
1933 return security_ops->task_setrlimit (resource, new_rlim);
1934}
1935
1936static inline int security_task_setscheduler (struct task_struct *p,
1937 int policy,
1938 struct sched_param *lp)
1939{
1940 return security_ops->task_setscheduler (p, policy, lp);
1941}
1942
1943static inline int security_task_getscheduler (struct task_struct *p)
1944{
1945 return security_ops->task_getscheduler (p);
1946}
1947
David Quigley35601542006-06-23 02:04:01 -07001948static inline int security_task_movememory (struct task_struct *p)
1949{
1950 return security_ops->task_movememory (p);
1951}
1952
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953static inline int security_task_kill (struct task_struct *p,
David Quigleyf9008e42006-06-30 01:55:46 -07001954 struct siginfo *info, int sig,
1955 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001956{
David Quigleyf9008e42006-06-30 01:55:46 -07001957 return security_ops->task_kill (p, info, sig, secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001958}
1959
1960static inline int security_task_wait (struct task_struct *p)
1961{
1962 return security_ops->task_wait (p);
1963}
1964
1965static inline int security_task_prctl (int option, unsigned long arg2,
1966 unsigned long arg3,
1967 unsigned long arg4,
1968 unsigned long arg5)
1969{
1970 return security_ops->task_prctl (option, arg2, arg3, arg4, arg5);
1971}
1972
1973static inline void security_task_reparent_to_init (struct task_struct *p)
1974{
1975 security_ops->task_reparent_to_init (p);
1976}
1977
1978static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1979{
1980 security_ops->task_to_inode(p, inode);
1981}
1982
1983static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
1984 short flag)
1985{
1986 return security_ops->ipc_permission (ipcp, flag);
1987}
1988
1989static inline int security_msg_msg_alloc (struct msg_msg * msg)
1990{
1991 return security_ops->msg_msg_alloc_security (msg);
1992}
1993
1994static inline void security_msg_msg_free (struct msg_msg * msg)
1995{
1996 security_ops->msg_msg_free_security(msg);
1997}
1998
1999static inline int security_msg_queue_alloc (struct msg_queue *msq)
2000{
2001 return security_ops->msg_queue_alloc_security (msq);
2002}
2003
2004static inline void security_msg_queue_free (struct msg_queue *msq)
2005{
2006 security_ops->msg_queue_free_security (msq);
2007}
2008
2009static inline int security_msg_queue_associate (struct msg_queue * msq,
2010 int msqflg)
2011{
2012 return security_ops->msg_queue_associate (msq, msqflg);
2013}
2014
2015static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
2016{
2017 return security_ops->msg_queue_msgctl (msq, cmd);
2018}
2019
2020static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
2021 struct msg_msg * msg, int msqflg)
2022{
2023 return security_ops->msg_queue_msgsnd (msq, msg, msqflg);
2024}
2025
2026static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
2027 struct msg_msg * msg,
2028 struct task_struct * target,
2029 long type, int mode)
2030{
2031 return security_ops->msg_queue_msgrcv (msq, msg, target, type, mode);
2032}
2033
2034static inline int security_shm_alloc (struct shmid_kernel *shp)
2035{
2036 return security_ops->shm_alloc_security (shp);
2037}
2038
2039static inline void security_shm_free (struct shmid_kernel *shp)
2040{
2041 security_ops->shm_free_security (shp);
2042}
2043
2044static inline int security_shm_associate (struct shmid_kernel * shp,
2045 int shmflg)
2046{
2047 return security_ops->shm_associate(shp, shmflg);
2048}
2049
2050static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
2051{
2052 return security_ops->shm_shmctl (shp, cmd);
2053}
2054
2055static inline int security_shm_shmat (struct shmid_kernel * shp,
2056 char __user *shmaddr, int shmflg)
2057{
2058 return security_ops->shm_shmat(shp, shmaddr, shmflg);
2059}
2060
2061static inline int security_sem_alloc (struct sem_array *sma)
2062{
2063 return security_ops->sem_alloc_security (sma);
2064}
2065
2066static inline void security_sem_free (struct sem_array *sma)
2067{
2068 security_ops->sem_free_security (sma);
2069}
2070
2071static inline int security_sem_associate (struct sem_array * sma, int semflg)
2072{
2073 return security_ops->sem_associate (sma, semflg);
2074}
2075
2076static inline int security_sem_semctl (struct sem_array * sma, int cmd)
2077{
2078 return security_ops->sem_semctl(sma, cmd);
2079}
2080
2081static inline int security_sem_semop (struct sem_array * sma,
2082 struct sembuf * sops, unsigned nsops,
2083 int alter)
2084{
2085 return security_ops->sem_semop(sma, sops, nsops, alter);
2086}
2087
2088static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
2089{
2090 if (unlikely (inode && IS_PRIVATE (inode)))
2091 return;
2092 security_ops->d_instantiate (dentry, inode);
2093}
2094
2095static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
2096{
2097 return security_ops->getprocattr(p, name, value, size);
2098}
2099
2100static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2101{
2102 return security_ops->setprocattr(p, name, value, size);
2103}
2104
2105static inline int security_netlink_send(struct sock *sk, struct sk_buff * skb)
2106{
2107 return security_ops->netlink_send(sk, skb);
2108}
2109
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07002110static inline int security_netlink_recv(struct sk_buff * skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111{
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07002112 return security_ops->netlink_recv(skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113}
2114
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002115static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2116{
2117 return security_ops->secid_to_secctx(secid, secdata, seclen);
2118}
2119
2120static inline void security_release_secctx(char *secdata, u32 seclen)
2121{
2122 return security_ops->release_secctx(secdata, seclen);
2123}
2124
Linus Torvalds1da177e2005-04-16 15:20:36 -07002125/* prototypes */
2126extern int security_init (void);
2127extern int register_security (struct security_operations *ops);
2128extern int unregister_security (struct security_operations *ops);
2129extern int mod_reg_security (const char *name, struct security_operations *ops);
2130extern int mod_unreg_security (const char *name, struct security_operations *ops);
Greg KHb67dbf92005-07-07 14:37:53 -07002131extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2132 struct dentry *parent, void *data,
2133 struct file_operations *fops);
2134extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2135extern void securityfs_remove(struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002136
2137
2138#else /* CONFIG_SECURITY */
2139
2140/*
2141 * This is the default capabilities functionality. Most of these functions
2142 * are just stubbed out, but a few must call the proper capable code.
2143 */
2144
2145static inline int security_init(void)
2146{
2147 return 0;
2148}
2149
2150static inline int security_ptrace (struct task_struct *parent, struct task_struct * child)
2151{
2152 return cap_ptrace (parent, child);
2153}
2154
2155static inline int security_capget (struct task_struct *target,
2156 kernel_cap_t *effective,
2157 kernel_cap_t *inheritable,
2158 kernel_cap_t *permitted)
2159{
2160 return cap_capget (target, effective, inheritable, permitted);
2161}
2162
2163static inline int security_capset_check (struct task_struct *target,
2164 kernel_cap_t *effective,
2165 kernel_cap_t *inheritable,
2166 kernel_cap_t *permitted)
2167{
2168 return cap_capset_check (target, effective, inheritable, permitted);
2169}
2170
2171static inline void security_capset_set (struct task_struct *target,
2172 kernel_cap_t *effective,
2173 kernel_cap_t *inheritable,
2174 kernel_cap_t *permitted)
2175{
2176 cap_capset_set (target, effective, inheritable, permitted);
2177}
2178
Chris Wright12b59892006-03-25 03:07:41 -08002179static inline int security_capable(struct task_struct *tsk, int cap)
2180{
2181 return cap_capable(tsk, cap);
2182}
2183
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184static inline int security_acct (struct file *file)
2185{
2186 return 0;
2187}
2188
2189static inline int security_sysctl(struct ctl_table *table, int op)
2190{
2191 return 0;
2192}
2193
2194static inline int security_quotactl (int cmds, int type, int id,
2195 struct super_block * sb)
2196{
2197 return 0;
2198}
2199
2200static inline int security_quota_on (struct dentry * dentry)
2201{
2202 return 0;
2203}
2204
2205static inline int security_syslog(int type)
2206{
2207 return cap_syslog(type);
2208}
2209
2210static inline int security_settime(struct timespec *ts, struct timezone *tz)
2211{
2212 return cap_settime(ts, tz);
2213}
2214
2215static inline int security_vm_enough_memory(long pages)
2216{
2217 return cap_vm_enough_memory(pages);
2218}
2219
2220static inline int security_bprm_alloc (struct linux_binprm *bprm)
2221{
2222 return 0;
2223}
2224
2225static inline void security_bprm_free (struct linux_binprm *bprm)
2226{ }
2227
2228static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
2229{
2230 cap_bprm_apply_creds (bprm, unsafe);
2231}
2232
2233static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
2234{
2235 return;
2236}
2237
2238static inline int security_bprm_set (struct linux_binprm *bprm)
2239{
2240 return cap_bprm_set_security (bprm);
2241}
2242
2243static inline int security_bprm_check (struct linux_binprm *bprm)
2244{
2245 return 0;
2246}
2247
2248static inline int security_bprm_secureexec (struct linux_binprm *bprm)
2249{
2250 return cap_bprm_secureexec(bprm);
2251}
2252
2253static inline int security_sb_alloc (struct super_block *sb)
2254{
2255 return 0;
2256}
2257
2258static inline void security_sb_free (struct super_block *sb)
2259{ }
2260
2261static inline int security_sb_copy_data (struct file_system_type *type,
2262 void *orig, void *copy)
2263{
2264 return 0;
2265}
2266
2267static inline int security_sb_kern_mount (struct super_block *sb, void *data)
2268{
2269 return 0;
2270}
2271
David Howells726c3342006-06-23 02:02:58 -07002272static inline int security_sb_statfs (struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273{
2274 return 0;
2275}
2276
2277static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
2278 char *type, unsigned long flags,
2279 void *data)
2280{
2281 return 0;
2282}
2283
2284static inline int security_sb_check_sb (struct vfsmount *mnt,
2285 struct nameidata *nd)
2286{
2287 return 0;
2288}
2289
2290static inline int security_sb_umount (struct vfsmount *mnt, int flags)
2291{
2292 return 0;
2293}
2294
2295static inline void security_sb_umount_close (struct vfsmount *mnt)
2296{ }
2297
2298static inline void security_sb_umount_busy (struct vfsmount *mnt)
2299{ }
2300
2301static inline void security_sb_post_remount (struct vfsmount *mnt,
2302 unsigned long flags, void *data)
2303{ }
2304
2305static inline void security_sb_post_mountroot (void)
2306{ }
2307
2308static inline void security_sb_post_addmount (struct vfsmount *mnt,
2309 struct nameidata *mountpoint_nd)
2310{ }
2311
2312static inline int security_sb_pivotroot (struct nameidata *old_nd,
2313 struct nameidata *new_nd)
2314{
2315 return 0;
2316}
2317
2318static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
2319 struct nameidata *new_nd)
2320{ }
2321
2322static inline int security_inode_alloc (struct inode *inode)
2323{
2324 return 0;
2325}
2326
2327static inline void security_inode_free (struct inode *inode)
2328{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002329
2330static inline int security_inode_init_security (struct inode *inode,
2331 struct inode *dir,
2332 char **name,
2333 void **value,
2334 size_t *len)
2335{
2336 return -EOPNOTSUPP;
2337}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002338
2339static inline int security_inode_create (struct inode *dir,
2340 struct dentry *dentry,
2341 int mode)
2342{
2343 return 0;
2344}
2345
Linus Torvalds1da177e2005-04-16 15:20:36 -07002346static inline int security_inode_link (struct dentry *old_dentry,
2347 struct inode *dir,
2348 struct dentry *new_dentry)
2349{
2350 return 0;
2351}
2352
Linus Torvalds1da177e2005-04-16 15:20:36 -07002353static inline int security_inode_unlink (struct inode *dir,
2354 struct dentry *dentry)
2355{
2356 return 0;
2357}
2358
2359static inline int security_inode_symlink (struct inode *dir,
2360 struct dentry *dentry,
2361 const char *old_name)
2362{
2363 return 0;
2364}
2365
Linus Torvalds1da177e2005-04-16 15:20:36 -07002366static inline int security_inode_mkdir (struct inode *dir,
2367 struct dentry *dentry,
2368 int mode)
2369{
2370 return 0;
2371}
2372
Linus Torvalds1da177e2005-04-16 15:20:36 -07002373static inline int security_inode_rmdir (struct inode *dir,
2374 struct dentry *dentry)
2375{
2376 return 0;
2377}
2378
2379static inline int security_inode_mknod (struct inode *dir,
2380 struct dentry *dentry,
2381 int mode, dev_t dev)
2382{
2383 return 0;
2384}
2385
Linus Torvalds1da177e2005-04-16 15:20:36 -07002386static inline int security_inode_rename (struct inode *old_dir,
2387 struct dentry *old_dentry,
2388 struct inode *new_dir,
2389 struct dentry *new_dentry)
2390{
2391 return 0;
2392}
2393
Linus Torvalds1da177e2005-04-16 15:20:36 -07002394static inline int security_inode_readlink (struct dentry *dentry)
2395{
2396 return 0;
2397}
2398
2399static inline int security_inode_follow_link (struct dentry *dentry,
2400 struct nameidata *nd)
2401{
2402 return 0;
2403}
2404
2405static inline int security_inode_permission (struct inode *inode, int mask,
2406 struct nameidata *nd)
2407{
2408 return 0;
2409}
2410
2411static inline int security_inode_setattr (struct dentry *dentry,
2412 struct iattr *attr)
2413{
2414 return 0;
2415}
2416
2417static inline int security_inode_getattr (struct vfsmount *mnt,
2418 struct dentry *dentry)
2419{
2420 return 0;
2421}
2422
2423static inline void security_inode_delete (struct inode *inode)
2424{ }
2425
2426static inline int security_inode_setxattr (struct dentry *dentry, char *name,
2427 void *value, size_t size, int flags)
2428{
2429 return cap_inode_setxattr(dentry, name, value, size, flags);
2430}
2431
2432static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
2433 void *value, size_t size, int flags)
2434{ }
2435
2436static inline int security_inode_getxattr (struct dentry *dentry, char *name)
2437{
2438 return 0;
2439}
2440
2441static inline int security_inode_listxattr (struct dentry *dentry)
2442{
2443 return 0;
2444}
2445
2446static inline int security_inode_removexattr (struct dentry *dentry, char *name)
2447{
2448 return cap_inode_removexattr(dentry, name);
2449}
2450
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00002451static inline const char *security_inode_xattr_getsuffix (void)
2452{
2453 return NULL ;
2454}
2455
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00002456static 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 -07002457{
2458 return -EOPNOTSUPP;
2459}
2460
2461static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2462{
2463 return -EOPNOTSUPP;
2464}
2465
2466static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2467{
2468 return 0;
2469}
2470
2471static inline int security_file_permission (struct file *file, int mask)
2472{
2473 return 0;
2474}
2475
2476static inline int security_file_alloc (struct file *file)
2477{
2478 return 0;
2479}
2480
2481static inline void security_file_free (struct file *file)
2482{ }
2483
2484static inline int security_file_ioctl (struct file *file, unsigned int cmd,
2485 unsigned long arg)
2486{
2487 return 0;
2488}
2489
2490static inline int security_file_mmap (struct file *file, unsigned long reqprot,
2491 unsigned long prot,
2492 unsigned long flags)
2493{
2494 return 0;
2495}
2496
2497static inline int security_file_mprotect (struct vm_area_struct *vma,
2498 unsigned long reqprot,
2499 unsigned long prot)
2500{
2501 return 0;
2502}
2503
2504static inline int security_file_lock (struct file *file, unsigned int cmd)
2505{
2506 return 0;
2507}
2508
2509static inline int security_file_fcntl (struct file *file, unsigned int cmd,
2510 unsigned long arg)
2511{
2512 return 0;
2513}
2514
2515static inline int security_file_set_fowner (struct file *file)
2516{
2517 return 0;
2518}
2519
2520static inline int security_file_send_sigiotask (struct task_struct *tsk,
2521 struct fown_struct *fown,
2522 int sig)
2523{
2524 return 0;
2525}
2526
2527static inline int security_file_receive (struct file *file)
2528{
2529 return 0;
2530}
2531
2532static inline int security_task_create (unsigned long clone_flags)
2533{
2534 return 0;
2535}
2536
2537static inline int security_task_alloc (struct task_struct *p)
2538{
2539 return 0;
2540}
2541
2542static inline void security_task_free (struct task_struct *p)
2543{ }
2544
2545static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
2546 int flags)
2547{
2548 return 0;
2549}
2550
2551static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
2552 uid_t old_suid, int flags)
2553{
2554 return cap_task_post_setuid (old_ruid, old_euid, old_suid, flags);
2555}
2556
2557static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
2558 int flags)
2559{
2560 return 0;
2561}
2562
2563static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
2564{
2565 return 0;
2566}
2567
2568static inline int security_task_getpgid (struct task_struct *p)
2569{
2570 return 0;
2571}
2572
2573static inline int security_task_getsid (struct task_struct *p)
2574{
2575 return 0;
2576}
2577
David Quigleyf9008e42006-06-30 01:55:46 -07002578static inline void security_task_getsecid (struct task_struct *p, u32 *secid)
2579{ }
2580
Linus Torvalds1da177e2005-04-16 15:20:36 -07002581static inline int security_task_setgroups (struct group_info *group_info)
2582{
2583 return 0;
2584}
2585
2586static inline int security_task_setnice (struct task_struct *p, int nice)
2587{
2588 return 0;
2589}
2590
James Morris03e68062006-06-23 02:03:58 -07002591static inline int security_task_setioprio (struct task_struct *p, int ioprio)
2592{
2593 return 0;
2594}
2595
David Quigleya1836a42006-06-30 01:55:49 -07002596static inline int security_task_getioprio (struct task_struct *p)
2597{
2598 return 0;
2599}
2600
Linus Torvalds1da177e2005-04-16 15:20:36 -07002601static inline int security_task_setrlimit (unsigned int resource,
2602 struct rlimit *new_rlim)
2603{
2604 return 0;
2605}
2606
2607static inline int security_task_setscheduler (struct task_struct *p,
2608 int policy,
2609 struct sched_param *lp)
2610{
2611 return 0;
2612}
2613
2614static inline int security_task_getscheduler (struct task_struct *p)
2615{
2616 return 0;
2617}
2618
David Quigley35601542006-06-23 02:04:01 -07002619static inline int security_task_movememory (struct task_struct *p)
2620{
2621 return 0;
2622}
2623
Linus Torvalds1da177e2005-04-16 15:20:36 -07002624static inline int security_task_kill (struct task_struct *p,
David Quigleyf9008e42006-06-30 01:55:46 -07002625 struct siginfo *info, int sig,
2626 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002627{
2628 return 0;
2629}
2630
2631static inline int security_task_wait (struct task_struct *p)
2632{
2633 return 0;
2634}
2635
2636static inline int security_task_prctl (int option, unsigned long arg2,
2637 unsigned long arg3,
2638 unsigned long arg4,
2639 unsigned long arg5)
2640{
2641 return 0;
2642}
2643
2644static inline void security_task_reparent_to_init (struct task_struct *p)
2645{
2646 cap_task_reparent_to_init (p);
2647}
2648
2649static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2650{ }
2651
2652static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
2653 short flag)
2654{
2655 return 0;
2656}
2657
2658static inline int security_msg_msg_alloc (struct msg_msg * msg)
2659{
2660 return 0;
2661}
2662
2663static inline void security_msg_msg_free (struct msg_msg * msg)
2664{ }
2665
2666static inline int security_msg_queue_alloc (struct msg_queue *msq)
2667{
2668 return 0;
2669}
2670
2671static inline void security_msg_queue_free (struct msg_queue *msq)
2672{ }
2673
2674static inline int security_msg_queue_associate (struct msg_queue * msq,
2675 int msqflg)
2676{
2677 return 0;
2678}
2679
2680static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
2681{
2682 return 0;
2683}
2684
2685static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
2686 struct msg_msg * msg, int msqflg)
2687{
2688 return 0;
2689}
2690
2691static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
2692 struct msg_msg * msg,
2693 struct task_struct * target,
2694 long type, int mode)
2695{
2696 return 0;
2697}
2698
2699static inline int security_shm_alloc (struct shmid_kernel *shp)
2700{
2701 return 0;
2702}
2703
2704static inline void security_shm_free (struct shmid_kernel *shp)
2705{ }
2706
2707static inline int security_shm_associate (struct shmid_kernel * shp,
2708 int shmflg)
2709{
2710 return 0;
2711}
2712
2713static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
2714{
2715 return 0;
2716}
2717
2718static inline int security_shm_shmat (struct shmid_kernel * shp,
2719 char __user *shmaddr, int shmflg)
2720{
2721 return 0;
2722}
2723
2724static inline int security_sem_alloc (struct sem_array *sma)
2725{
2726 return 0;
2727}
2728
2729static inline void security_sem_free (struct sem_array *sma)
2730{ }
2731
2732static inline int security_sem_associate (struct sem_array * sma, int semflg)
2733{
2734 return 0;
2735}
2736
2737static inline int security_sem_semctl (struct sem_array * sma, int cmd)
2738{
2739 return 0;
2740}
2741
2742static inline int security_sem_semop (struct sem_array * sma,
2743 struct sembuf * sops, unsigned nsops,
2744 int alter)
2745{
2746 return 0;
2747}
2748
2749static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
2750{ }
2751
2752static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
2753{
2754 return -EINVAL;
2755}
2756
2757static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2758{
2759 return -EINVAL;
2760}
2761
2762static inline int security_netlink_send (struct sock *sk, struct sk_buff *skb)
2763{
2764 return cap_netlink_send (sk, skb);
2765}
2766
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07002767static inline int security_netlink_recv (struct sk_buff *skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002768{
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07002769 return cap_netlink_recv (skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002770}
2771
Randy Dunlaped5a9272006-02-01 03:05:00 -08002772static inline struct dentry *securityfs_create_dir(const char *name,
2773 struct dentry *parent)
2774{
2775 return ERR_PTR(-ENODEV);
2776}
2777
2778static inline struct dentry *securityfs_create_file(const char *name,
2779 mode_t mode,
2780 struct dentry *parent,
2781 void *data,
2782 struct file_operations *fops)
2783{
2784 return ERR_PTR(-ENODEV);
2785}
2786
2787static inline void securityfs_remove(struct dentry *dentry)
2788{
2789}
2790
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002791static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2792{
2793 return -EOPNOTSUPP;
2794}
2795
2796static inline void security_release_secctx(char *secdata, u32 seclen)
2797{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002798}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002799#endif /* CONFIG_SECURITY */
2800
2801#ifdef CONFIG_SECURITY_NETWORK
2802static inline int security_unix_stream_connect(struct socket * sock,
2803 struct socket * other,
2804 struct sock * newsk)
2805{
2806 return security_ops->unix_stream_connect(sock, other, newsk);
2807}
2808
2809
2810static inline int security_unix_may_send(struct socket * sock,
2811 struct socket * other)
2812{
2813 return security_ops->unix_may_send(sock, other);
2814}
2815
2816static inline int security_socket_create (int family, int type,
2817 int protocol, int kern)
2818{
2819 return security_ops->socket_create(family, type, protocol, kern);
2820}
2821
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002822static inline int security_socket_post_create(struct socket * sock,
2823 int family,
2824 int type,
2825 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002826{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002827 return security_ops->socket_post_create(sock, family, type,
2828 protocol, kern);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002829}
2830
2831static inline int security_socket_bind(struct socket * sock,
2832 struct sockaddr * address,
2833 int addrlen)
2834{
2835 return security_ops->socket_bind(sock, address, addrlen);
2836}
2837
2838static inline int security_socket_connect(struct socket * sock,
2839 struct sockaddr * address,
2840 int addrlen)
2841{
2842 return security_ops->socket_connect(sock, address, addrlen);
2843}
2844
2845static inline int security_socket_listen(struct socket * sock, int backlog)
2846{
2847 return security_ops->socket_listen(sock, backlog);
2848}
2849
2850static inline int security_socket_accept(struct socket * sock,
2851 struct socket * newsock)
2852{
2853 return security_ops->socket_accept(sock, newsock);
2854}
2855
2856static inline void security_socket_post_accept(struct socket * sock,
2857 struct socket * newsock)
2858{
2859 security_ops->socket_post_accept(sock, newsock);
2860}
2861
2862static inline int security_socket_sendmsg(struct socket * sock,
2863 struct msghdr * msg, int size)
2864{
2865 return security_ops->socket_sendmsg(sock, msg, size);
2866}
2867
2868static inline int security_socket_recvmsg(struct socket * sock,
2869 struct msghdr * msg, int size,
2870 int flags)
2871{
2872 return security_ops->socket_recvmsg(sock, msg, size, flags);
2873}
2874
2875static inline int security_socket_getsockname(struct socket * sock)
2876{
2877 return security_ops->socket_getsockname(sock);
2878}
2879
2880static inline int security_socket_getpeername(struct socket * sock)
2881{
2882 return security_ops->socket_getpeername(sock);
2883}
2884
2885static inline int security_socket_getsockopt(struct socket * sock,
2886 int level, int optname)
2887{
2888 return security_ops->socket_getsockopt(sock, level, optname);
2889}
2890
2891static inline int security_socket_setsockopt(struct socket * sock,
2892 int level, int optname)
2893{
2894 return security_ops->socket_setsockopt(sock, level, optname);
2895}
2896
2897static inline int security_socket_shutdown(struct socket * sock, int how)
2898{
2899 return security_ops->socket_shutdown(sock, how);
2900}
2901
2902static inline int security_sock_rcv_skb (struct sock * sk,
2903 struct sk_buff * skb)
2904{
2905 return security_ops->socket_sock_rcv_skb (sk, skb);
2906}
2907
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002908static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2909 int __user *optlen, unsigned len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002910{
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002911 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
2912}
2913
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002914static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002915{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002916 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002917}
2918
Al Virodd0fc662005-10-07 07:46:04 +01002919static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002920{
2921 return security_ops->sk_alloc_security(sk, family, priority);
2922}
2923
2924static inline void security_sk_free(struct sock *sk)
2925{
2926 return security_ops->sk_free_security(sk);
2927}
Trent Jaegerdf718372005-12-13 23:12:27 -08002928
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002929static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2930{
2931 return security_ops->sk_clone_security(sk, newsk);
2932}
2933
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002934static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002935{
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002936 security_ops->sk_getsecid(sk, &fl->secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08002937}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002938
2939static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2940{
2941 security_ops->req_classify_flow(req, fl);
2942}
2943
2944static inline void security_sock_graft(struct sock* sk, struct socket *parent)
2945{
2946 security_ops->sock_graft(sk, parent);
2947}
2948
2949static inline int security_inet_conn_request(struct sock *sk,
2950 struct sk_buff *skb, struct request_sock *req)
2951{
2952 return security_ops->inet_conn_request(sk, skb, req);
2953}
2954
2955static inline void security_inet_csk_clone(struct sock *newsk,
2956 const struct request_sock *req)
2957{
2958 security_ops->inet_csk_clone(newsk, req);
2959}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002960
2961static inline void security_inet_conn_established(struct sock *sk,
2962 struct sk_buff *skb)
2963{
2964 security_ops->inet_conn_established(sk, skb);
2965}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002966#else /* CONFIG_SECURITY_NETWORK */
2967static inline int security_unix_stream_connect(struct socket * sock,
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002968 struct socket * other,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002969 struct sock * newsk)
2970{
2971 return 0;
2972}
2973
2974static inline int security_unix_may_send(struct socket * sock,
2975 struct socket * other)
2976{
2977 return 0;
2978}
2979
2980static inline int security_socket_create (int family, int type,
2981 int protocol, int kern)
2982{
2983 return 0;
2984}
2985
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002986static inline int security_socket_post_create(struct socket * sock,
2987 int family,
2988 int type,
2989 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002990{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002991 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002992}
2993
2994static inline int security_socket_bind(struct socket * sock,
2995 struct sockaddr * address,
2996 int addrlen)
2997{
2998 return 0;
2999}
3000
3001static inline int security_socket_connect(struct socket * sock,
3002 struct sockaddr * address,
3003 int addrlen)
3004{
3005 return 0;
3006}
3007
3008static inline int security_socket_listen(struct socket * sock, int backlog)
3009{
3010 return 0;
3011}
3012
3013static inline int security_socket_accept(struct socket * sock,
3014 struct socket * newsock)
3015{
3016 return 0;
3017}
3018
3019static inline void security_socket_post_accept(struct socket * sock,
3020 struct socket * newsock)
3021{
3022}
3023
3024static inline int security_socket_sendmsg(struct socket * sock,
3025 struct msghdr * msg, int size)
3026{
3027 return 0;
3028}
3029
3030static inline int security_socket_recvmsg(struct socket * sock,
3031 struct msghdr * msg, int size,
3032 int flags)
3033{
3034 return 0;
3035}
3036
3037static inline int security_socket_getsockname(struct socket * sock)
3038{
3039 return 0;
3040}
3041
3042static inline int security_socket_getpeername(struct socket * sock)
3043{
3044 return 0;
3045}
3046
3047static inline int security_socket_getsockopt(struct socket * sock,
3048 int level, int optname)
3049{
3050 return 0;
3051}
3052
3053static inline int security_socket_setsockopt(struct socket * sock,
3054 int level, int optname)
3055{
3056 return 0;
3057}
3058
3059static inline int security_socket_shutdown(struct socket * sock, int how)
3060{
3061 return 0;
3062}
3063static inline int security_sock_rcv_skb (struct sock * sk,
3064 struct sk_buff * skb)
3065{
3066 return 0;
3067}
3068
Catherine Zhang2c7946a2006-03-20 22:41:23 -08003069static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
3070 int __user *optlen, unsigned len)
3071{
3072 return -ENOPROTOOPT;
3073}
3074
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07003075static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003076{
3077 return -ENOPROTOOPT;
3078}
3079
Al Virodd0fc662005-10-07 07:46:04 +01003080static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003081{
3082 return 0;
3083}
3084
3085static inline void security_sk_free(struct sock *sk)
3086{
3087}
Trent Jaegerdf718372005-12-13 23:12:27 -08003088
Venkat Yekkirala892c1412006-08-04 23:08:56 -07003089static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
3090{
3091}
3092
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003093static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08003094{
Trent Jaegerdf718372005-12-13 23:12:27 -08003095}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07003096
3097static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
3098{
3099}
3100
3101static inline void security_sock_graft(struct sock* sk, struct socket *parent)
3102{
3103}
3104
3105static inline int security_inet_conn_request(struct sock *sk,
3106 struct sk_buff *skb, struct request_sock *req)
3107{
3108 return 0;
3109}
3110
3111static inline void security_inet_csk_clone(struct sock *newsk,
3112 const struct request_sock *req)
3113{
3114}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06003115
3116static inline void security_inet_conn_established(struct sock *sk,
3117 struct sk_buff *skb)
3118{
3119}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003120#endif /* CONFIG_SECURITY_NETWORK */
3121
Trent Jaegerdf718372005-12-13 23:12:27 -08003122#ifdef CONFIG_SECURITY_NETWORK_XFRM
3123static inline int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
3124{
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06003125 return security_ops->xfrm_policy_alloc_security(xp, sec_ctx);
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07003126}
3127
Trent Jaegerdf718372005-12-13 23:12:27 -08003128static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
3129{
3130 return security_ops->xfrm_policy_clone_security(old, new);
3131}
3132
3133static inline void security_xfrm_policy_free(struct xfrm_policy *xp)
3134{
3135 security_ops->xfrm_policy_free_security(xp);
3136}
3137
Catherine Zhangc8c05a82006-06-08 23:39:49 -07003138static inline int security_xfrm_policy_delete(struct xfrm_policy *xp)
3139{
3140 return security_ops->xfrm_policy_delete_security(xp);
3141}
3142
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003143static inline int security_xfrm_state_alloc(struct xfrm_state *x,
3144 struct xfrm_user_sec_ctx *sec_ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08003145{
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06003146 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003147}
3148
3149static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
3150 struct xfrm_sec_ctx *polsec, u32 secid)
3151{
3152 if (!polsec)
3153 return 0;
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06003154 /*
3155 * We want the context to be taken from secid which is usually
3156 * from the sock.
3157 */
3158 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08003159}
3160
Catherine Zhangc8c05a82006-06-08 23:39:49 -07003161static inline int security_xfrm_state_delete(struct xfrm_state *x)
3162{
3163 return security_ops->xfrm_state_delete_security(x);
3164}
3165
Trent Jaegerdf718372005-12-13 23:12:27 -08003166static inline void security_xfrm_state_free(struct xfrm_state *x)
3167{
3168 security_ops->xfrm_state_free_security(x);
3169}
3170
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003171static inline int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08003172{
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003173 return security_ops->xfrm_policy_lookup(xp, fl_secid, dir);
3174}
3175
3176static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
3177 struct xfrm_policy *xp, struct flowi *fl)
3178{
3179 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
3180}
3181
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003182static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003183{
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003184 return security_ops->xfrm_decode_session(skb, secid, 1);
3185}
3186
3187static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
3188{
3189 int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
3190
3191 BUG_ON(rc);
Trent Jaegerdf718372005-12-13 23:12:27 -08003192}
3193#else /* CONFIG_SECURITY_NETWORK_XFRM */
3194static inline int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
3195{
3196 return 0;
3197}
3198
3199static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
3200{
3201 return 0;
3202}
3203
3204static inline void security_xfrm_policy_free(struct xfrm_policy *xp)
3205{
3206}
3207
Catherine Zhangc8c05a82006-06-08 23:39:49 -07003208static inline int security_xfrm_policy_delete(struct xfrm_policy *xp)
3209{
3210 return 0;
3211}
3212
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003213static inline int security_xfrm_state_alloc(struct xfrm_state *x,
3214 struct xfrm_user_sec_ctx *sec_ctx)
3215{
3216 return 0;
3217}
3218
3219static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
3220 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08003221{
3222 return 0;
3223}
3224
3225static inline void security_xfrm_state_free(struct xfrm_state *x)
3226{
3227}
3228
David S. Miller6f68dc32006-06-08 23:58:52 -07003229static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07003230{
3231 return 0;
3232}
3233
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003234static inline int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08003235{
3236 return 0;
3237}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003238
3239static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
3240 struct xfrm_policy *xp, struct flowi *fl)
3241{
3242 return 1;
3243}
3244
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003245static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003246{
3247 return 0;
3248}
3249
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003250static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
3251{
3252}
3253
Trent Jaegerdf718372005-12-13 23:12:27 -08003254#endif /* CONFIG_SECURITY_NETWORK_XFRM */
3255
David Howells29db9192005-10-30 15:02:44 -08003256#ifdef CONFIG_KEYS
3257#ifdef CONFIG_SECURITY
Michael LeMayd7200242006-06-22 14:47:17 -07003258static inline int security_key_alloc(struct key *key,
David Howells7e047ef2006-06-26 00:24:50 -07003259 struct task_struct *tsk,
3260 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08003261{
David Howells7e047ef2006-06-26 00:24:50 -07003262 return security_ops->key_alloc(key, tsk, flags);
David Howells29db9192005-10-30 15:02:44 -08003263}
3264
3265static inline void security_key_free(struct key *key)
3266{
3267 security_ops->key_free(key);
3268}
3269
3270static inline int security_key_permission(key_ref_t key_ref,
3271 struct task_struct *context,
3272 key_perm_t perm)
3273{
3274 return security_ops->key_permission(key_ref, context, perm);
3275}
3276
3277#else
3278
Michael LeMayd7200242006-06-22 14:47:17 -07003279static inline int security_key_alloc(struct key *key,
David Howells7e047ef2006-06-26 00:24:50 -07003280 struct task_struct *tsk,
3281 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08003282{
3283 return 0;
3284}
3285
3286static inline void security_key_free(struct key *key)
3287{
3288}
3289
3290static inline int security_key_permission(key_ref_t key_ref,
3291 struct task_struct *context,
3292 key_perm_t perm)
3293{
3294 return 0;
3295}
3296
3297#endif
3298#endif /* CONFIG_KEYS */
3299
Linus Torvalds1da177e2005-04-16 15:20:36 -07003300#endif /* ! __LINUX_SECURITY_H */
3301