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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.
829 * @req_classify_flow:
830 * Sets the flow's sid to the openreq sid.
Trent Jaegerdf718372005-12-13 23:12:27 -0800831 *
832 * Security hooks for XFRM operations.
833 *
834 * @xfrm_policy_alloc_security:
835 * @xp contains the xfrm_policy being added to Security Policy Database
836 * used by the XFRM system.
837 * @sec_ctx contains the security context information being provided by
838 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700839 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600840 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -0800841 * Return 0 if operation was successful (memory to allocate, legal context)
842 * @xfrm_policy_clone_security:
843 * @old contains an existing xfrm_policy in the SPD.
844 * @new contains a new xfrm_policy being cloned from old.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700845 * Allocate a security structure to the new->security field
846 * that contains the information from the old->security field.
Trent Jaegerdf718372005-12-13 23:12:27 -0800847 * Return 0 if operation was successful (memory to allocate).
848 * @xfrm_policy_free_security:
849 * @xp contains the xfrm_policy
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700850 * Deallocate xp->security.
851 * @xfrm_policy_delete_security:
852 * @xp contains the xfrm_policy.
853 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800854 * @xfrm_state_alloc_security:
855 * @x contains the xfrm_state being added to the Security Association
856 * Database by the XFRM system.
857 * @sec_ctx contains the security context information being provided by
858 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700859 * @secid contains the secid from which to take the mls portion of the context.
860 * Allocate a security structure to the x->security field; the security
861 * field is initialized to NULL when the xfrm_state is allocated. Set the
862 * context to correspond to either sec_ctx or polsec, with the mls portion
863 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -0800864 * Return 0 if operation was successful (memory to allocate, legal context).
865 * @xfrm_state_free_security:
866 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700867 * Deallocate x->security.
868 * @xfrm_state_delete_security:
869 * @x contains the xfrm_state.
870 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800871 * @xfrm_policy_lookup:
872 * @xp contains the xfrm_policy for which the access control is being
873 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700874 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -0800875 * access to the policy xp.
876 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700877 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -0800878 * XFRMs on a packet. The hook is called when selecting either a
879 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -0500880 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
881 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700882 * @xfrm_state_pol_flow_match:
883 * @x contains the state to match.
884 * @xp contains the policy to check for a match.
885 * @fl contains the flow to check for a match.
886 * Return 1 if there is a match.
887 * @xfrm_flow_state_match:
888 * @fl contains the flow key to match.
889 * @xfrm points to the xfrm_state to match.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -0500890 * @xp points to the xfrm_policy to match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700891 * Return 1 if there is a match.
892 * @xfrm_decode_session:
893 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700894 * @secid points to the flow key secid to set.
895 * @ckall says if all xfrms used should be checked for same secid.
896 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897 *
David Howells29db9192005-10-30 15:02:44 -0800898 * Security hooks affecting all Key Management operations
899 *
900 * @key_alloc:
901 * Permit allocation of a key and assign security data. Note that key does
902 * not have a serial number assigned at this point.
903 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -0700904 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -0800905 * Return 0 if permission is granted, -ve error otherwise.
906 * @key_free:
907 * Notification of destruction; free security data.
908 * @key points to the key.
909 * No return value.
910 * @key_permission:
911 * See whether a specific operational right is granted to a process on a
912 * key.
913 * @key_ref refers to the key (key pointer + possession attribute bit).
914 * @context points to the process to provide the context against which to
915 * evaluate the security data on the key.
916 * @perm describes the combination of permissions required of this key.
917 * Return 1 if permission granted, 0 if permission denied and -ve it the
918 * normal permissions model should be effected.
919 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920 * Security hooks affecting all System V IPC operations.
921 *
922 * @ipc_permission:
923 * Check permissions for access to IPC
924 * @ipcp contains the kernel IPC permission structure
925 * @flag contains the desired (requested) permission set
926 * Return 0 if permission is granted.
927 *
928 * Security hooks for individual messages held in System V IPC message queues
929 * @msg_msg_alloc_security:
930 * Allocate and attach a security structure to the msg->security field.
931 * The security field is initialized to NULL when the structure is first
932 * created.
933 * @msg contains the message structure to be modified.
934 * Return 0 if operation was successful and permission is granted.
935 * @msg_msg_free_security:
936 * Deallocate the security structure for this message.
937 * @msg contains the message structure to be modified.
938 *
939 * Security hooks for System V IPC Message Queues
940 *
941 * @msg_queue_alloc_security:
942 * Allocate and attach a security structure to the
943 * msq->q_perm.security field. The security field is initialized to
944 * NULL when the structure is first created.
945 * @msq contains the message queue structure to be modified.
946 * Return 0 if operation was successful and permission is granted.
947 * @msg_queue_free_security:
948 * Deallocate security structure for this message queue.
949 * @msq contains the message queue structure to be modified.
950 * @msg_queue_associate:
951 * Check permission when a message queue is requested through the
952 * msgget system call. This hook is only called when returning the
953 * message queue identifier for an existing message queue, not when a
954 * new message queue is created.
955 * @msq contains the message queue to act upon.
956 * @msqflg contains the operation control flags.
957 * Return 0 if permission is granted.
958 * @msg_queue_msgctl:
959 * Check permission when a message control operation specified by @cmd
960 * is to be performed on the message queue @msq.
961 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
962 * @msq contains the message queue to act upon. May be NULL.
963 * @cmd contains the operation to be performed.
964 * Return 0 if permission is granted.
965 * @msg_queue_msgsnd:
966 * Check permission before a message, @msg, is enqueued on the message
967 * queue, @msq.
968 * @msq contains the message queue to send message to.
969 * @msg contains the message to be enqueued.
970 * @msqflg contains operational flags.
971 * Return 0 if permission is granted.
972 * @msg_queue_msgrcv:
973 * Check permission before a message, @msg, is removed from the message
974 * queue, @msq. The @target task structure contains a pointer to the
975 * process that will be receiving the message (not equal to the current
976 * process when inline receives are being performed).
977 * @msq contains the message queue to retrieve message from.
978 * @msg contains the message destination.
979 * @target contains the task structure for recipient process.
980 * @type contains the type of message requested.
981 * @mode contains the operational flags.
982 * Return 0 if permission is granted.
983 *
984 * Security hooks for System V Shared Memory Segments
985 *
986 * @shm_alloc_security:
987 * Allocate and attach a security structure to the shp->shm_perm.security
988 * field. The security field is initialized to NULL when the structure is
989 * first created.
990 * @shp contains the shared memory structure to be modified.
991 * Return 0 if operation was successful and permission is granted.
992 * @shm_free_security:
993 * Deallocate the security struct for this memory segment.
994 * @shp contains the shared memory structure to be modified.
995 * @shm_associate:
996 * Check permission when a shared memory region is requested through the
997 * shmget system call. This hook is only called when returning the shared
998 * memory region identifier for an existing region, not when a new shared
999 * memory region is created.
1000 * @shp contains the shared memory structure to be modified.
1001 * @shmflg contains the operation control flags.
1002 * Return 0 if permission is granted.
1003 * @shm_shmctl:
1004 * Check permission when a shared memory control operation specified by
1005 * @cmd is to be performed on the shared memory region @shp.
1006 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1007 * @shp contains shared memory structure to be modified.
1008 * @cmd contains the operation to be performed.
1009 * Return 0 if permission is granted.
1010 * @shm_shmat:
1011 * Check permissions prior to allowing the shmat system call to attach the
1012 * shared memory segment @shp to the data segment of the calling process.
1013 * The attaching address is specified by @shmaddr.
1014 * @shp contains the shared memory structure to be modified.
1015 * @shmaddr contains the address to attach memory region to.
1016 * @shmflg contains the operational flags.
1017 * Return 0 if permission is granted.
1018 *
1019 * Security hooks for System V Semaphores
1020 *
1021 * @sem_alloc_security:
1022 * Allocate and attach a security structure to the sma->sem_perm.security
1023 * field. The security field is initialized to NULL when the structure is
1024 * first created.
1025 * @sma contains the semaphore structure
1026 * Return 0 if operation was successful and permission is granted.
1027 * @sem_free_security:
1028 * deallocate security struct for this semaphore
1029 * @sma contains the semaphore structure.
1030 * @sem_associate:
1031 * Check permission when a semaphore is requested through the semget
1032 * system call. This hook is only called when returning the semaphore
1033 * identifier for an existing semaphore, not when a new one must be
1034 * created.
1035 * @sma contains the semaphore structure.
1036 * @semflg contains the operation control flags.
1037 * Return 0 if permission is granted.
1038 * @sem_semctl:
1039 * Check permission when a semaphore operation specified by @cmd is to be
1040 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
1041 * IPC_INFO or SEM_INFO.
1042 * @sma contains the semaphore structure. May be NULL.
1043 * @cmd contains the operation to be performed.
1044 * Return 0 if permission is granted.
1045 * @sem_semop
1046 * Check permissions before performing operations on members of the
1047 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1048 * may be modified.
1049 * @sma contains the semaphore structure.
1050 * @sops contains the operations to perform.
1051 * @nsops contains the number of operations to perform.
1052 * @alter contains the flag indicating whether changes are to be made.
1053 * Return 0 if permission is granted.
1054 *
1055 * @ptrace:
1056 * Check permission before allowing the @parent process to trace the
1057 * @child process.
1058 * Security modules may also want to perform a process tracing check
1059 * during an execve in the set_security or apply_creds hooks of
1060 * binprm_security_ops if the process is being traced and its security
1061 * attributes would be changed by the execve.
1062 * @parent contains the task_struct structure for parent process.
1063 * @child contains the task_struct structure for child process.
1064 * Return 0 if permission is granted.
1065 * @capget:
1066 * Get the @effective, @inheritable, and @permitted capability sets for
1067 * the @target process. The hook may also perform permission checking to
1068 * determine if the current process is allowed to see the capability sets
1069 * of the @target process.
1070 * @target contains the task_struct structure for target process.
1071 * @effective contains the effective capability set.
1072 * @inheritable contains the inheritable capability set.
1073 * @permitted contains the permitted capability set.
1074 * Return 0 if the capability sets were successfully obtained.
1075 * @capset_check:
1076 * Check permission before setting the @effective, @inheritable, and
1077 * @permitted capability sets for the @target process.
1078 * Caveat: @target is also set to current if a set of processes is
1079 * specified (i.e. all processes other than current and init or a
1080 * particular process group). Hence, the capset_set hook may need to
1081 * revalidate permission to the actual target process.
1082 * @target contains the task_struct structure for target process.
1083 * @effective contains the effective capability set.
1084 * @inheritable contains the inheritable capability set.
1085 * @permitted contains the permitted capability set.
1086 * Return 0 if permission is granted.
1087 * @capset_set:
1088 * Set the @effective, @inheritable, and @permitted capability sets for
1089 * the @target process. Since capset_check cannot always check permission
1090 * to the real @target process, this hook may also perform permission
1091 * checking to determine if the current process is allowed to set the
1092 * capability sets of the @target process. However, this hook has no way
1093 * of returning an error due to the structure of the sys_capset code.
1094 * @target contains the task_struct structure for target process.
1095 * @effective contains the effective capability set.
1096 * @inheritable contains the inheritable capability set.
1097 * @permitted contains the permitted capability set.
Chris Wright12b59892006-03-25 03:07:41 -08001098 * @capable:
1099 * Check whether the @tsk process has the @cap capability.
1100 * @tsk contains the task_struct for the process.
1101 * @cap contains the capability <include/linux/capability.h>.
1102 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103 * @acct:
1104 * Check permission before enabling or disabling process accounting. If
1105 * accounting is being enabled, then @file refers to the open file used to
1106 * store accounting records. If accounting is being disabled, then @file
1107 * is NULL.
1108 * @file contains the file structure for the accounting file (may be NULL).
1109 * Return 0 if permission is granted.
1110 * @sysctl:
1111 * Check permission before accessing the @table sysctl variable in the
1112 * manner specified by @op.
1113 * @table contains the ctl_table structure for the sysctl variable.
1114 * @op contains the operation (001 = search, 002 = write, 004 = read).
1115 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116 * @syslog:
1117 * Check permission before accessing the kernel message ring or changing
1118 * logging to the console.
1119 * See the syslog(2) manual page for an explanation of the @type values.
1120 * @type contains the type of action.
1121 * Return 0 if permission is granted.
1122 * @settime:
1123 * Check permission to change the system time.
1124 * struct timespec and timezone are defined in include/linux/time.h
1125 * @ts contains new time
1126 * @tz contains new timezone
1127 * Return 0 if permission is granted.
1128 * @vm_enough_memory:
1129 * Check permissions for allocating a new virtual mapping.
1130 * @pages contains the number of pages.
1131 * Return 0 if permission is granted.
1132 *
1133 * @register_security:
1134 * allow module stacking.
1135 * @name contains the name of the security module being stacked.
1136 * @ops contains a pointer to the struct security_operations of the module to stack.
1137 * @unregister_security:
1138 * remove a stacked module.
1139 * @name contains the name of the security module being unstacked.
1140 * @ops contains a pointer to the struct security_operations of the module to unstack.
1141 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001142 * @secid_to_secctx:
1143 * Convert secid to security context.
1144 * @secid contains the security ID.
1145 * @secdata contains the pointer that stores the converted security context.
1146 *
1147 * @release_secctx:
1148 * Release the security context.
1149 * @secdata contains the security context.
1150 * @seclen contains the length of the security context.
1151 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152 * This is the main security structure.
1153 */
1154struct security_operations {
1155 int (*ptrace) (struct task_struct * parent, struct task_struct * child);
1156 int (*capget) (struct task_struct * target,
1157 kernel_cap_t * effective,
1158 kernel_cap_t * inheritable, kernel_cap_t * permitted);
1159 int (*capset_check) (struct task_struct * target,
1160 kernel_cap_t * effective,
1161 kernel_cap_t * inheritable,
1162 kernel_cap_t * permitted);
1163 void (*capset_set) (struct task_struct * target,
1164 kernel_cap_t * effective,
1165 kernel_cap_t * inheritable,
1166 kernel_cap_t * permitted);
Chris Wright12b59892006-03-25 03:07:41 -08001167 int (*capable) (struct task_struct * tsk, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168 int (*acct) (struct file * file);
1169 int (*sysctl) (struct ctl_table * table, int op);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170 int (*quotactl) (int cmds, int type, int id, struct super_block * sb);
1171 int (*quota_on) (struct dentry * dentry);
1172 int (*syslog) (int type);
1173 int (*settime) (struct timespec *ts, struct timezone *tz);
1174 int (*vm_enough_memory) (long pages);
1175
1176 int (*bprm_alloc_security) (struct linux_binprm * bprm);
1177 void (*bprm_free_security) (struct linux_binprm * bprm);
1178 void (*bprm_apply_creds) (struct linux_binprm * bprm, int unsafe);
1179 void (*bprm_post_apply_creds) (struct linux_binprm * bprm);
1180 int (*bprm_set_security) (struct linux_binprm * bprm);
1181 int (*bprm_check_security) (struct linux_binprm * bprm);
1182 int (*bprm_secureexec) (struct linux_binprm * bprm);
1183
1184 int (*sb_alloc_security) (struct super_block * sb);
1185 void (*sb_free_security) (struct super_block * sb);
1186 int (*sb_copy_data)(struct file_system_type *type,
1187 void *orig, void *copy);
1188 int (*sb_kern_mount) (struct super_block *sb, void *data);
David Howells726c3342006-06-23 02:02:58 -07001189 int (*sb_statfs) (struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190 int (*sb_mount) (char *dev_name, struct nameidata * nd,
1191 char *type, unsigned long flags, void *data);
1192 int (*sb_check_sb) (struct vfsmount * mnt, struct nameidata * nd);
1193 int (*sb_umount) (struct vfsmount * mnt, int flags);
1194 void (*sb_umount_close) (struct vfsmount * mnt);
1195 void (*sb_umount_busy) (struct vfsmount * mnt);
1196 void (*sb_post_remount) (struct vfsmount * mnt,
1197 unsigned long flags, void *data);
1198 void (*sb_post_mountroot) (void);
1199 void (*sb_post_addmount) (struct vfsmount * mnt,
1200 struct nameidata * mountpoint_nd);
1201 int (*sb_pivotroot) (struct nameidata * old_nd,
1202 struct nameidata * new_nd);
1203 void (*sb_post_pivotroot) (struct nameidata * old_nd,
1204 struct nameidata * new_nd);
1205
1206 int (*inode_alloc_security) (struct inode *inode);
1207 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001208 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1209 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210 int (*inode_create) (struct inode *dir,
1211 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212 int (*inode_link) (struct dentry *old_dentry,
1213 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1215 int (*inode_symlink) (struct inode *dir,
1216 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1219 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1220 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001221 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1222 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223 int (*inode_readlink) (struct dentry *dentry);
1224 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1225 int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd);
1226 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1227 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1228 void (*inode_delete) (struct inode *inode);
1229 int (*inode_setxattr) (struct dentry *dentry, char *name, void *value,
1230 size_t size, int flags);
1231 void (*inode_post_setxattr) (struct dentry *dentry, char *name, void *value,
1232 size_t size, int flags);
1233 int (*inode_getxattr) (struct dentry *dentry, char *name);
1234 int (*inode_listxattr) (struct dentry *dentry);
1235 int (*inode_removexattr) (struct dentry *dentry, char *name);
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00001236 const char *(*inode_xattr_getsuffix) (void);
1237 int (*inode_getsecurity)(const struct inode *inode, const char *name, void *buffer, size_t size, int err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001238 int (*inode_setsecurity)(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1239 int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size);
1240
1241 int (*file_permission) (struct file * file, int mask);
1242 int (*file_alloc_security) (struct file * file);
1243 void (*file_free_security) (struct file * file);
1244 int (*file_ioctl) (struct file * file, unsigned int cmd,
1245 unsigned long arg);
1246 int (*file_mmap) (struct file * file,
1247 unsigned long reqprot,
1248 unsigned long prot, unsigned long flags);
1249 int (*file_mprotect) (struct vm_area_struct * vma,
1250 unsigned long reqprot,
1251 unsigned long prot);
1252 int (*file_lock) (struct file * file, unsigned int cmd);
1253 int (*file_fcntl) (struct file * file, unsigned int cmd,
1254 unsigned long arg);
1255 int (*file_set_fowner) (struct file * file);
1256 int (*file_send_sigiotask) (struct task_struct * tsk,
1257 struct fown_struct * fown, int sig);
1258 int (*file_receive) (struct file * file);
1259
1260 int (*task_create) (unsigned long clone_flags);
1261 int (*task_alloc_security) (struct task_struct * p);
1262 void (*task_free_security) (struct task_struct * p);
1263 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1264 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1265 uid_t old_euid, uid_t old_suid, int flags);
1266 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1267 int (*task_setpgid) (struct task_struct * p, pid_t pgid);
1268 int (*task_getpgid) (struct task_struct * p);
1269 int (*task_getsid) (struct task_struct * p);
David Quigleyf9008e42006-06-30 01:55:46 -07001270 void (*task_getsecid) (struct task_struct * p, u32 * secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 int (*task_setgroups) (struct group_info *group_info);
1272 int (*task_setnice) (struct task_struct * p, int nice);
James Morris03e68062006-06-23 02:03:58 -07001273 int (*task_setioprio) (struct task_struct * p, int ioprio);
David Quigleya1836a42006-06-30 01:55:49 -07001274 int (*task_getioprio) (struct task_struct * p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275 int (*task_setrlimit) (unsigned int resource, struct rlimit * new_rlim);
1276 int (*task_setscheduler) (struct task_struct * p, int policy,
1277 struct sched_param * lp);
1278 int (*task_getscheduler) (struct task_struct * p);
David Quigley35601542006-06-23 02:04:01 -07001279 int (*task_movememory) (struct task_struct * p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280 int (*task_kill) (struct task_struct * p,
David Quigleyf9008e42006-06-30 01:55:46 -07001281 struct siginfo * info, int sig, u32 secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282 int (*task_wait) (struct task_struct * p);
1283 int (*task_prctl) (int option, unsigned long arg2,
1284 unsigned long arg3, unsigned long arg4,
1285 unsigned long arg5);
1286 void (*task_reparent_to_init) (struct task_struct * p);
1287 void (*task_to_inode)(struct task_struct *p, struct inode *inode);
1288
1289 int (*ipc_permission) (struct kern_ipc_perm * ipcp, short flag);
1290
1291 int (*msg_msg_alloc_security) (struct msg_msg * msg);
1292 void (*msg_msg_free_security) (struct msg_msg * msg);
1293
1294 int (*msg_queue_alloc_security) (struct msg_queue * msq);
1295 void (*msg_queue_free_security) (struct msg_queue * msq);
1296 int (*msg_queue_associate) (struct msg_queue * msq, int msqflg);
1297 int (*msg_queue_msgctl) (struct msg_queue * msq, int cmd);
1298 int (*msg_queue_msgsnd) (struct msg_queue * msq,
1299 struct msg_msg * msg, int msqflg);
1300 int (*msg_queue_msgrcv) (struct msg_queue * msq,
1301 struct msg_msg * msg,
1302 struct task_struct * target,
1303 long type, int mode);
1304
1305 int (*shm_alloc_security) (struct shmid_kernel * shp);
1306 void (*shm_free_security) (struct shmid_kernel * shp);
1307 int (*shm_associate) (struct shmid_kernel * shp, int shmflg);
1308 int (*shm_shmctl) (struct shmid_kernel * shp, int cmd);
1309 int (*shm_shmat) (struct shmid_kernel * shp,
1310 char __user *shmaddr, int shmflg);
1311
1312 int (*sem_alloc_security) (struct sem_array * sma);
1313 void (*sem_free_security) (struct sem_array * sma);
1314 int (*sem_associate) (struct sem_array * sma, int semflg);
1315 int (*sem_semctl) (struct sem_array * sma, int cmd);
1316 int (*sem_semop) (struct sem_array * sma,
1317 struct sembuf * sops, unsigned nsops, int alter);
1318
1319 int (*netlink_send) (struct sock * sk, struct sk_buff * skb);
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07001320 int (*netlink_recv) (struct sk_buff * skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321
1322 /* allow module stacking */
1323 int (*register_security) (const char *name,
1324 struct security_operations *ops);
1325 int (*unregister_security) (const char *name,
1326 struct security_operations *ops);
1327
1328 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1329
1330 int (*getprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1331 int (*setprocattr)(struct task_struct *p, char *name, void *value, size_t size);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001332 int (*secid_to_secctx)(u32 secid, char **secdata, u32 *seclen);
1333 void (*release_secctx)(char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334
1335#ifdef CONFIG_SECURITY_NETWORK
1336 int (*unix_stream_connect) (struct socket * sock,
1337 struct socket * other, struct sock * newsk);
1338 int (*unix_may_send) (struct socket * sock, struct socket * other);
1339
1340 int (*socket_create) (int family, int type, int protocol, int kern);
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001341 int (*socket_post_create) (struct socket * sock, int family,
1342 int type, int protocol, int kern);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343 int (*socket_bind) (struct socket * sock,
1344 struct sockaddr * address, int addrlen);
1345 int (*socket_connect) (struct socket * sock,
1346 struct sockaddr * address, int addrlen);
1347 int (*socket_listen) (struct socket * sock, int backlog);
1348 int (*socket_accept) (struct socket * sock, struct socket * newsock);
1349 void (*socket_post_accept) (struct socket * sock,
1350 struct socket * newsock);
1351 int (*socket_sendmsg) (struct socket * sock,
1352 struct msghdr * msg, int size);
1353 int (*socket_recvmsg) (struct socket * sock,
1354 struct msghdr * msg, int size, int flags);
1355 int (*socket_getsockname) (struct socket * sock);
1356 int (*socket_getpeername) (struct socket * sock);
1357 int (*socket_getsockopt) (struct socket * sock, int level, int optname);
1358 int (*socket_setsockopt) (struct socket * sock, int level, int optname);
1359 int (*socket_shutdown) (struct socket * sock, int how);
1360 int (*socket_sock_rcv_skb) (struct sock * sk, struct sk_buff * skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001361 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001362 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001363 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001365 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001366 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Venkat Yekkirala4237c752006-07-24 23:32:50 -07001367 void (*sock_graft)(struct sock* sk, struct socket *parent);
1368 int (*inet_conn_request)(struct sock *sk, struct sk_buff *skb,
1369 struct request_sock *req);
1370 void (*inet_csk_clone)(struct sock *newsk, const struct request_sock *req);
1371 void (*req_classify_flow)(const struct request_sock *req, struct flowi *fl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001373
Trent Jaegerdf718372005-12-13 23:12:27 -08001374#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07001375 int (*xfrm_policy_alloc_security) (struct xfrm_policy *xp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001376 struct xfrm_user_sec_ctx *sec_ctx);
Trent Jaegerdf718372005-12-13 23:12:27 -08001377 int (*xfrm_policy_clone_security) (struct xfrm_policy *old, struct xfrm_policy *new);
1378 void (*xfrm_policy_free_security) (struct xfrm_policy *xp);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001379 int (*xfrm_policy_delete_security) (struct xfrm_policy *xp);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001380 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001381 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001382 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001383 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001384 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001385 int (*xfrm_policy_lookup)(struct xfrm_policy *xp, u32 fl_secid, u8 dir);
1386 int (*xfrm_state_pol_flow_match)(struct xfrm_state *x,
1387 struct xfrm_policy *xp, struct flowi *fl);
Venkat Yekkirala5b368e62006-10-05 15:42:18 -05001388 int (*xfrm_flow_state_match)(struct flowi *fl, struct xfrm_state *xfrm,
1389 struct xfrm_policy *xp);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001390 int (*xfrm_decode_session)(struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001391#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1392
David Howells29db9192005-10-30 15:02:44 -08001393 /* key management security hooks */
1394#ifdef CONFIG_KEYS
David Howells7e047ef2006-06-26 00:24:50 -07001395 int (*key_alloc)(struct key *key, struct task_struct *tsk, unsigned long flags);
David Howells29db9192005-10-30 15:02:44 -08001396 void (*key_free)(struct key *key);
1397 int (*key_permission)(key_ref_t key_ref,
1398 struct task_struct *context,
1399 key_perm_t perm);
1400
1401#endif /* CONFIG_KEYS */
1402
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403};
1404
1405/* global variables */
1406extern struct security_operations *security_ops;
1407
1408/* inline stuff */
1409static inline int security_ptrace (struct task_struct * parent, struct task_struct * child)
1410{
1411 return security_ops->ptrace (parent, child);
1412}
1413
1414static inline int security_capget (struct task_struct *target,
1415 kernel_cap_t *effective,
1416 kernel_cap_t *inheritable,
1417 kernel_cap_t *permitted)
1418{
1419 return security_ops->capget (target, effective, inheritable, permitted);
1420}
1421
1422static inline int security_capset_check (struct task_struct *target,
1423 kernel_cap_t *effective,
1424 kernel_cap_t *inheritable,
1425 kernel_cap_t *permitted)
1426{
1427 return security_ops->capset_check (target, effective, inheritable, permitted);
1428}
1429
1430static inline void security_capset_set (struct task_struct *target,
1431 kernel_cap_t *effective,
1432 kernel_cap_t *inheritable,
1433 kernel_cap_t *permitted)
1434{
1435 security_ops->capset_set (target, effective, inheritable, permitted);
1436}
1437
Chris Wright12b59892006-03-25 03:07:41 -08001438static inline int security_capable(struct task_struct *tsk, int cap)
1439{
1440 return security_ops->capable(tsk, cap);
1441}
1442
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443static inline int security_acct (struct file *file)
1444{
1445 return security_ops->acct (file);
1446}
1447
1448static inline int security_sysctl(struct ctl_table *table, int op)
1449{
1450 return security_ops->sysctl(table, op);
1451}
1452
1453static inline int security_quotactl (int cmds, int type, int id,
1454 struct super_block *sb)
1455{
1456 return security_ops->quotactl (cmds, type, id, sb);
1457}
1458
1459static inline int security_quota_on (struct dentry * dentry)
1460{
1461 return security_ops->quota_on (dentry);
1462}
1463
1464static inline int security_syslog(int type)
1465{
1466 return security_ops->syslog(type);
1467}
1468
1469static inline int security_settime(struct timespec *ts, struct timezone *tz)
1470{
1471 return security_ops->settime(ts, tz);
1472}
1473
1474
1475static inline int security_vm_enough_memory(long pages)
1476{
1477 return security_ops->vm_enough_memory(pages);
1478}
1479
1480static inline int security_bprm_alloc (struct linux_binprm *bprm)
1481{
1482 return security_ops->bprm_alloc_security (bprm);
1483}
1484static inline void security_bprm_free (struct linux_binprm *bprm)
1485{
1486 security_ops->bprm_free_security (bprm);
1487}
1488static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
1489{
1490 security_ops->bprm_apply_creds (bprm, unsafe);
1491}
1492static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
1493{
1494 security_ops->bprm_post_apply_creds (bprm);
1495}
1496static inline int security_bprm_set (struct linux_binprm *bprm)
1497{
1498 return security_ops->bprm_set_security (bprm);
1499}
1500
1501static inline int security_bprm_check (struct linux_binprm *bprm)
1502{
1503 return security_ops->bprm_check_security (bprm);
1504}
1505
1506static inline int security_bprm_secureexec (struct linux_binprm *bprm)
1507{
1508 return security_ops->bprm_secureexec (bprm);
1509}
1510
1511static inline int security_sb_alloc (struct super_block *sb)
1512{
1513 return security_ops->sb_alloc_security (sb);
1514}
1515
1516static inline void security_sb_free (struct super_block *sb)
1517{
1518 security_ops->sb_free_security (sb);
1519}
1520
1521static inline int security_sb_copy_data (struct file_system_type *type,
1522 void *orig, void *copy)
1523{
1524 return security_ops->sb_copy_data (type, orig, copy);
1525}
1526
1527static inline int security_sb_kern_mount (struct super_block *sb, void *data)
1528{
1529 return security_ops->sb_kern_mount (sb, data);
1530}
1531
David Howells726c3342006-06-23 02:02:58 -07001532static inline int security_sb_statfs (struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533{
David Howells726c3342006-06-23 02:02:58 -07001534 return security_ops->sb_statfs (dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001535}
1536
1537static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
1538 char *type, unsigned long flags,
1539 void *data)
1540{
1541 return security_ops->sb_mount (dev_name, nd, type, flags, data);
1542}
1543
1544static inline int security_sb_check_sb (struct vfsmount *mnt,
1545 struct nameidata *nd)
1546{
1547 return security_ops->sb_check_sb (mnt, nd);
1548}
1549
1550static inline int security_sb_umount (struct vfsmount *mnt, int flags)
1551{
1552 return security_ops->sb_umount (mnt, flags);
1553}
1554
1555static inline void security_sb_umount_close (struct vfsmount *mnt)
1556{
1557 security_ops->sb_umount_close (mnt);
1558}
1559
1560static inline void security_sb_umount_busy (struct vfsmount *mnt)
1561{
1562 security_ops->sb_umount_busy (mnt);
1563}
1564
1565static inline void security_sb_post_remount (struct vfsmount *mnt,
1566 unsigned long flags, void *data)
1567{
1568 security_ops->sb_post_remount (mnt, flags, data);
1569}
1570
1571static inline void security_sb_post_mountroot (void)
1572{
1573 security_ops->sb_post_mountroot ();
1574}
1575
1576static inline void security_sb_post_addmount (struct vfsmount *mnt,
1577 struct nameidata *mountpoint_nd)
1578{
1579 security_ops->sb_post_addmount (mnt, mountpoint_nd);
1580}
1581
1582static inline int security_sb_pivotroot (struct nameidata *old_nd,
1583 struct nameidata *new_nd)
1584{
1585 return security_ops->sb_pivotroot (old_nd, new_nd);
1586}
1587
1588static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
1589 struct nameidata *new_nd)
1590{
1591 security_ops->sb_post_pivotroot (old_nd, new_nd);
1592}
1593
1594static inline int security_inode_alloc (struct inode *inode)
1595{
Alexey Dobriyan50462062006-09-29 02:00:01 -07001596 inode->i_security = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597 return security_ops->inode_alloc_security (inode);
1598}
1599
1600static inline void security_inode_free (struct inode *inode)
1601{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602 security_ops->inode_free_security (inode);
1603}
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001604
1605static inline int security_inode_init_security (struct inode *inode,
1606 struct inode *dir,
1607 char **name,
1608 void **value,
1609 size_t *len)
1610{
1611 if (unlikely (IS_PRIVATE (inode)))
1612 return -EOPNOTSUPP;
1613 return security_ops->inode_init_security (inode, dir, name, value, len);
1614}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001615
1616static inline int security_inode_create (struct inode *dir,
1617 struct dentry *dentry,
1618 int mode)
1619{
1620 if (unlikely (IS_PRIVATE (dir)))
1621 return 0;
1622 return security_ops->inode_create (dir, dentry, mode);
1623}
1624
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625static inline int security_inode_link (struct dentry *old_dentry,
1626 struct inode *dir,
1627 struct dentry *new_dentry)
1628{
1629 if (unlikely (IS_PRIVATE (old_dentry->d_inode)))
1630 return 0;
1631 return security_ops->inode_link (old_dentry, dir, new_dentry);
1632}
1633
Linus Torvalds1da177e2005-04-16 15:20:36 -07001634static inline int security_inode_unlink (struct inode *dir,
1635 struct dentry *dentry)
1636{
1637 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1638 return 0;
1639 return security_ops->inode_unlink (dir, dentry);
1640}
1641
1642static inline int security_inode_symlink (struct inode *dir,
1643 struct dentry *dentry,
1644 const char *old_name)
1645{
1646 if (unlikely (IS_PRIVATE (dir)))
1647 return 0;
1648 return security_ops->inode_symlink (dir, dentry, old_name);
1649}
1650
Linus Torvalds1da177e2005-04-16 15:20:36 -07001651static inline int security_inode_mkdir (struct inode *dir,
1652 struct dentry *dentry,
1653 int mode)
1654{
1655 if (unlikely (IS_PRIVATE (dir)))
1656 return 0;
1657 return security_ops->inode_mkdir (dir, dentry, mode);
1658}
1659
Linus Torvalds1da177e2005-04-16 15:20:36 -07001660static inline int security_inode_rmdir (struct inode *dir,
1661 struct dentry *dentry)
1662{
1663 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1664 return 0;
1665 return security_ops->inode_rmdir (dir, dentry);
1666}
1667
1668static inline int security_inode_mknod (struct inode *dir,
1669 struct dentry *dentry,
1670 int mode, dev_t dev)
1671{
1672 if (unlikely (IS_PRIVATE (dir)))
1673 return 0;
1674 return security_ops->inode_mknod (dir, dentry, mode, dev);
1675}
1676
Linus Torvalds1da177e2005-04-16 15:20:36 -07001677static inline int security_inode_rename (struct inode *old_dir,
1678 struct dentry *old_dentry,
1679 struct inode *new_dir,
1680 struct dentry *new_dentry)
1681{
1682 if (unlikely (IS_PRIVATE (old_dentry->d_inode) ||
1683 (new_dentry->d_inode && IS_PRIVATE (new_dentry->d_inode))))
1684 return 0;
1685 return security_ops->inode_rename (old_dir, old_dentry,
1686 new_dir, new_dentry);
1687}
1688
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689static inline int security_inode_readlink (struct dentry *dentry)
1690{
1691 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1692 return 0;
1693 return security_ops->inode_readlink (dentry);
1694}
1695
1696static inline int security_inode_follow_link (struct dentry *dentry,
1697 struct nameidata *nd)
1698{
1699 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1700 return 0;
1701 return security_ops->inode_follow_link (dentry, nd);
1702}
1703
1704static inline int security_inode_permission (struct inode *inode, int mask,
1705 struct nameidata *nd)
1706{
1707 if (unlikely (IS_PRIVATE (inode)))
1708 return 0;
1709 return security_ops->inode_permission (inode, mask, nd);
1710}
1711
1712static inline int security_inode_setattr (struct dentry *dentry,
1713 struct iattr *attr)
1714{
1715 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1716 return 0;
1717 return security_ops->inode_setattr (dentry, attr);
1718}
1719
1720static inline int security_inode_getattr (struct vfsmount *mnt,
1721 struct dentry *dentry)
1722{
1723 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1724 return 0;
1725 return security_ops->inode_getattr (mnt, dentry);
1726}
1727
1728static inline void security_inode_delete (struct inode *inode)
1729{
1730 if (unlikely (IS_PRIVATE (inode)))
1731 return;
1732 security_ops->inode_delete (inode);
1733}
1734
1735static inline int security_inode_setxattr (struct dentry *dentry, char *name,
1736 void *value, size_t size, int flags)
1737{
1738 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1739 return 0;
1740 return security_ops->inode_setxattr (dentry, name, value, size, flags);
1741}
1742
1743static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
1744 void *value, size_t size, int flags)
1745{
1746 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1747 return;
1748 security_ops->inode_post_setxattr (dentry, name, value, size, flags);
1749}
1750
1751static inline int security_inode_getxattr (struct dentry *dentry, char *name)
1752{
1753 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1754 return 0;
1755 return security_ops->inode_getxattr (dentry, name);
1756}
1757
1758static inline int security_inode_listxattr (struct dentry *dentry)
1759{
1760 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1761 return 0;
1762 return security_ops->inode_listxattr (dentry);
1763}
1764
1765static inline int security_inode_removexattr (struct dentry *dentry, char *name)
1766{
1767 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1768 return 0;
1769 return security_ops->inode_removexattr (dentry, name);
1770}
1771
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00001772static inline const char *security_inode_xattr_getsuffix(void)
1773{
1774 return security_ops->inode_xattr_getsuffix();
1775}
1776
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00001777static 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 -07001778{
1779 if (unlikely (IS_PRIVATE (inode)))
1780 return 0;
James Morrisd381d8a2005-10-30 14:59:22 -08001781 return security_ops->inode_getsecurity(inode, name, buffer, size, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001782}
1783
1784static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
1785{
1786 if (unlikely (IS_PRIVATE (inode)))
1787 return 0;
1788 return security_ops->inode_setsecurity(inode, name, value, size, flags);
1789}
1790
1791static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
1792{
1793 if (unlikely (IS_PRIVATE (inode)))
1794 return 0;
1795 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
1796}
1797
1798static inline int security_file_permission (struct file *file, int mask)
1799{
1800 return security_ops->file_permission (file, mask);
1801}
1802
1803static inline int security_file_alloc (struct file *file)
1804{
1805 return security_ops->file_alloc_security (file);
1806}
1807
1808static inline void security_file_free (struct file *file)
1809{
1810 security_ops->file_free_security (file);
1811}
1812
1813static inline int security_file_ioctl (struct file *file, unsigned int cmd,
1814 unsigned long arg)
1815{
1816 return security_ops->file_ioctl (file, cmd, arg);
1817}
1818
1819static inline int security_file_mmap (struct file *file, unsigned long reqprot,
1820 unsigned long prot,
1821 unsigned long flags)
1822{
1823 return security_ops->file_mmap (file, reqprot, prot, flags);
1824}
1825
1826static inline int security_file_mprotect (struct vm_area_struct *vma,
1827 unsigned long reqprot,
1828 unsigned long prot)
1829{
1830 return security_ops->file_mprotect (vma, reqprot, prot);
1831}
1832
1833static inline int security_file_lock (struct file *file, unsigned int cmd)
1834{
1835 return security_ops->file_lock (file, cmd);
1836}
1837
1838static inline int security_file_fcntl (struct file *file, unsigned int cmd,
1839 unsigned long arg)
1840{
1841 return security_ops->file_fcntl (file, cmd, arg);
1842}
1843
1844static inline int security_file_set_fowner (struct file *file)
1845{
1846 return security_ops->file_set_fowner (file);
1847}
1848
1849static inline int security_file_send_sigiotask (struct task_struct *tsk,
1850 struct fown_struct *fown,
1851 int sig)
1852{
1853 return security_ops->file_send_sigiotask (tsk, fown, sig);
1854}
1855
1856static inline int security_file_receive (struct file *file)
1857{
1858 return security_ops->file_receive (file);
1859}
1860
1861static inline int security_task_create (unsigned long clone_flags)
1862{
1863 return security_ops->task_create (clone_flags);
1864}
1865
1866static inline int security_task_alloc (struct task_struct *p)
1867{
1868 return security_ops->task_alloc_security (p);
1869}
1870
1871static inline void security_task_free (struct task_struct *p)
1872{
1873 security_ops->task_free_security (p);
1874}
1875
1876static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
1877 int flags)
1878{
1879 return security_ops->task_setuid (id0, id1, id2, flags);
1880}
1881
1882static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
1883 uid_t old_suid, int flags)
1884{
1885 return security_ops->task_post_setuid (old_ruid, old_euid, old_suid, flags);
1886}
1887
1888static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
1889 int flags)
1890{
1891 return security_ops->task_setgid (id0, id1, id2, flags);
1892}
1893
1894static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
1895{
1896 return security_ops->task_setpgid (p, pgid);
1897}
1898
1899static inline int security_task_getpgid (struct task_struct *p)
1900{
1901 return security_ops->task_getpgid (p);
1902}
1903
1904static inline int security_task_getsid (struct task_struct *p)
1905{
1906 return security_ops->task_getsid (p);
1907}
1908
David Quigleyf9008e42006-06-30 01:55:46 -07001909static inline void security_task_getsecid (struct task_struct *p, u32 *secid)
1910{
1911 security_ops->task_getsecid (p, secid);
1912}
1913
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914static inline int security_task_setgroups (struct group_info *group_info)
1915{
1916 return security_ops->task_setgroups (group_info);
1917}
1918
1919static inline int security_task_setnice (struct task_struct *p, int nice)
1920{
1921 return security_ops->task_setnice (p, nice);
1922}
1923
James Morris03e68062006-06-23 02:03:58 -07001924static inline int security_task_setioprio (struct task_struct *p, int ioprio)
1925{
1926 return security_ops->task_setioprio (p, ioprio);
1927}
1928
David Quigleya1836a42006-06-30 01:55:49 -07001929static inline int security_task_getioprio (struct task_struct *p)
1930{
1931 return security_ops->task_getioprio (p);
1932}
1933
Linus Torvalds1da177e2005-04-16 15:20:36 -07001934static inline int security_task_setrlimit (unsigned int resource,
1935 struct rlimit *new_rlim)
1936{
1937 return security_ops->task_setrlimit (resource, new_rlim);
1938}
1939
1940static inline int security_task_setscheduler (struct task_struct *p,
1941 int policy,
1942 struct sched_param *lp)
1943{
1944 return security_ops->task_setscheduler (p, policy, lp);
1945}
1946
1947static inline int security_task_getscheduler (struct task_struct *p)
1948{
1949 return security_ops->task_getscheduler (p);
1950}
1951
David Quigley35601542006-06-23 02:04:01 -07001952static inline int security_task_movememory (struct task_struct *p)
1953{
1954 return security_ops->task_movememory (p);
1955}
1956
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957static inline int security_task_kill (struct task_struct *p,
David Quigleyf9008e42006-06-30 01:55:46 -07001958 struct siginfo *info, int sig,
1959 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001960{
David Quigleyf9008e42006-06-30 01:55:46 -07001961 return security_ops->task_kill (p, info, sig, secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001962}
1963
1964static inline int security_task_wait (struct task_struct *p)
1965{
1966 return security_ops->task_wait (p);
1967}
1968
1969static inline int security_task_prctl (int option, unsigned long arg2,
1970 unsigned long arg3,
1971 unsigned long arg4,
1972 unsigned long arg5)
1973{
1974 return security_ops->task_prctl (option, arg2, arg3, arg4, arg5);
1975}
1976
1977static inline void security_task_reparent_to_init (struct task_struct *p)
1978{
1979 security_ops->task_reparent_to_init (p);
1980}
1981
1982static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1983{
1984 security_ops->task_to_inode(p, inode);
1985}
1986
1987static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
1988 short flag)
1989{
1990 return security_ops->ipc_permission (ipcp, flag);
1991}
1992
1993static inline int security_msg_msg_alloc (struct msg_msg * msg)
1994{
1995 return security_ops->msg_msg_alloc_security (msg);
1996}
1997
1998static inline void security_msg_msg_free (struct msg_msg * msg)
1999{
2000 security_ops->msg_msg_free_security(msg);
2001}
2002
2003static inline int security_msg_queue_alloc (struct msg_queue *msq)
2004{
2005 return security_ops->msg_queue_alloc_security (msq);
2006}
2007
2008static inline void security_msg_queue_free (struct msg_queue *msq)
2009{
2010 security_ops->msg_queue_free_security (msq);
2011}
2012
2013static inline int security_msg_queue_associate (struct msg_queue * msq,
2014 int msqflg)
2015{
2016 return security_ops->msg_queue_associate (msq, msqflg);
2017}
2018
2019static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
2020{
2021 return security_ops->msg_queue_msgctl (msq, cmd);
2022}
2023
2024static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
2025 struct msg_msg * msg, int msqflg)
2026{
2027 return security_ops->msg_queue_msgsnd (msq, msg, msqflg);
2028}
2029
2030static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
2031 struct msg_msg * msg,
2032 struct task_struct * target,
2033 long type, int mode)
2034{
2035 return security_ops->msg_queue_msgrcv (msq, msg, target, type, mode);
2036}
2037
2038static inline int security_shm_alloc (struct shmid_kernel *shp)
2039{
2040 return security_ops->shm_alloc_security (shp);
2041}
2042
2043static inline void security_shm_free (struct shmid_kernel *shp)
2044{
2045 security_ops->shm_free_security (shp);
2046}
2047
2048static inline int security_shm_associate (struct shmid_kernel * shp,
2049 int shmflg)
2050{
2051 return security_ops->shm_associate(shp, shmflg);
2052}
2053
2054static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
2055{
2056 return security_ops->shm_shmctl (shp, cmd);
2057}
2058
2059static inline int security_shm_shmat (struct shmid_kernel * shp,
2060 char __user *shmaddr, int shmflg)
2061{
2062 return security_ops->shm_shmat(shp, shmaddr, shmflg);
2063}
2064
2065static inline int security_sem_alloc (struct sem_array *sma)
2066{
2067 return security_ops->sem_alloc_security (sma);
2068}
2069
2070static inline void security_sem_free (struct sem_array *sma)
2071{
2072 security_ops->sem_free_security (sma);
2073}
2074
2075static inline int security_sem_associate (struct sem_array * sma, int semflg)
2076{
2077 return security_ops->sem_associate (sma, semflg);
2078}
2079
2080static inline int security_sem_semctl (struct sem_array * sma, int cmd)
2081{
2082 return security_ops->sem_semctl(sma, cmd);
2083}
2084
2085static inline int security_sem_semop (struct sem_array * sma,
2086 struct sembuf * sops, unsigned nsops,
2087 int alter)
2088{
2089 return security_ops->sem_semop(sma, sops, nsops, alter);
2090}
2091
2092static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
2093{
2094 if (unlikely (inode && IS_PRIVATE (inode)))
2095 return;
2096 security_ops->d_instantiate (dentry, inode);
2097}
2098
2099static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
2100{
2101 return security_ops->getprocattr(p, name, value, size);
2102}
2103
2104static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2105{
2106 return security_ops->setprocattr(p, name, value, size);
2107}
2108
2109static inline int security_netlink_send(struct sock *sk, struct sk_buff * skb)
2110{
2111 return security_ops->netlink_send(sk, skb);
2112}
2113
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07002114static inline int security_netlink_recv(struct sk_buff * skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115{
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07002116 return security_ops->netlink_recv(skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002117}
2118
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002119static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2120{
2121 return security_ops->secid_to_secctx(secid, secdata, seclen);
2122}
2123
2124static inline void security_release_secctx(char *secdata, u32 seclen)
2125{
2126 return security_ops->release_secctx(secdata, seclen);
2127}
2128
Linus Torvalds1da177e2005-04-16 15:20:36 -07002129/* prototypes */
2130extern int security_init (void);
2131extern int register_security (struct security_operations *ops);
2132extern int unregister_security (struct security_operations *ops);
2133extern int mod_reg_security (const char *name, struct security_operations *ops);
2134extern int mod_unreg_security (const char *name, struct security_operations *ops);
Greg KHb67dbf92005-07-07 14:37:53 -07002135extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2136 struct dentry *parent, void *data,
2137 struct file_operations *fops);
2138extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2139extern void securityfs_remove(struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140
2141
2142#else /* CONFIG_SECURITY */
2143
2144/*
2145 * This is the default capabilities functionality. Most of these functions
2146 * are just stubbed out, but a few must call the proper capable code.
2147 */
2148
2149static inline int security_init(void)
2150{
2151 return 0;
2152}
2153
2154static inline int security_ptrace (struct task_struct *parent, struct task_struct * child)
2155{
2156 return cap_ptrace (parent, child);
2157}
2158
2159static inline int security_capget (struct task_struct *target,
2160 kernel_cap_t *effective,
2161 kernel_cap_t *inheritable,
2162 kernel_cap_t *permitted)
2163{
2164 return cap_capget (target, effective, inheritable, permitted);
2165}
2166
2167static inline int security_capset_check (struct task_struct *target,
2168 kernel_cap_t *effective,
2169 kernel_cap_t *inheritable,
2170 kernel_cap_t *permitted)
2171{
2172 return cap_capset_check (target, effective, inheritable, permitted);
2173}
2174
2175static inline void security_capset_set (struct task_struct *target,
2176 kernel_cap_t *effective,
2177 kernel_cap_t *inheritable,
2178 kernel_cap_t *permitted)
2179{
2180 cap_capset_set (target, effective, inheritable, permitted);
2181}
2182
Chris Wright12b59892006-03-25 03:07:41 -08002183static inline int security_capable(struct task_struct *tsk, int cap)
2184{
2185 return cap_capable(tsk, cap);
2186}
2187
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188static inline int security_acct (struct file *file)
2189{
2190 return 0;
2191}
2192
2193static inline int security_sysctl(struct ctl_table *table, int op)
2194{
2195 return 0;
2196}
2197
2198static inline int security_quotactl (int cmds, int type, int id,
2199 struct super_block * sb)
2200{
2201 return 0;
2202}
2203
2204static inline int security_quota_on (struct dentry * dentry)
2205{
2206 return 0;
2207}
2208
2209static inline int security_syslog(int type)
2210{
2211 return cap_syslog(type);
2212}
2213
2214static inline int security_settime(struct timespec *ts, struct timezone *tz)
2215{
2216 return cap_settime(ts, tz);
2217}
2218
2219static inline int security_vm_enough_memory(long pages)
2220{
2221 return cap_vm_enough_memory(pages);
2222}
2223
2224static inline int security_bprm_alloc (struct linux_binprm *bprm)
2225{
2226 return 0;
2227}
2228
2229static inline void security_bprm_free (struct linux_binprm *bprm)
2230{ }
2231
2232static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
2233{
2234 cap_bprm_apply_creds (bprm, unsafe);
2235}
2236
2237static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
2238{
2239 return;
2240}
2241
2242static inline int security_bprm_set (struct linux_binprm *bprm)
2243{
2244 return cap_bprm_set_security (bprm);
2245}
2246
2247static inline int security_bprm_check (struct linux_binprm *bprm)
2248{
2249 return 0;
2250}
2251
2252static inline int security_bprm_secureexec (struct linux_binprm *bprm)
2253{
2254 return cap_bprm_secureexec(bprm);
2255}
2256
2257static inline int security_sb_alloc (struct super_block *sb)
2258{
2259 return 0;
2260}
2261
2262static inline void security_sb_free (struct super_block *sb)
2263{ }
2264
2265static inline int security_sb_copy_data (struct file_system_type *type,
2266 void *orig, void *copy)
2267{
2268 return 0;
2269}
2270
2271static inline int security_sb_kern_mount (struct super_block *sb, void *data)
2272{
2273 return 0;
2274}
2275
David Howells726c3342006-06-23 02:02:58 -07002276static inline int security_sb_statfs (struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002277{
2278 return 0;
2279}
2280
2281static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
2282 char *type, unsigned long flags,
2283 void *data)
2284{
2285 return 0;
2286}
2287
2288static inline int security_sb_check_sb (struct vfsmount *mnt,
2289 struct nameidata *nd)
2290{
2291 return 0;
2292}
2293
2294static inline int security_sb_umount (struct vfsmount *mnt, int flags)
2295{
2296 return 0;
2297}
2298
2299static inline void security_sb_umount_close (struct vfsmount *mnt)
2300{ }
2301
2302static inline void security_sb_umount_busy (struct vfsmount *mnt)
2303{ }
2304
2305static inline void security_sb_post_remount (struct vfsmount *mnt,
2306 unsigned long flags, void *data)
2307{ }
2308
2309static inline void security_sb_post_mountroot (void)
2310{ }
2311
2312static inline void security_sb_post_addmount (struct vfsmount *mnt,
2313 struct nameidata *mountpoint_nd)
2314{ }
2315
2316static inline int security_sb_pivotroot (struct nameidata *old_nd,
2317 struct nameidata *new_nd)
2318{
2319 return 0;
2320}
2321
2322static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
2323 struct nameidata *new_nd)
2324{ }
2325
2326static inline int security_inode_alloc (struct inode *inode)
2327{
2328 return 0;
2329}
2330
2331static inline void security_inode_free (struct inode *inode)
2332{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002333
2334static inline int security_inode_init_security (struct inode *inode,
2335 struct inode *dir,
2336 char **name,
2337 void **value,
2338 size_t *len)
2339{
2340 return -EOPNOTSUPP;
2341}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002342
2343static inline int security_inode_create (struct inode *dir,
2344 struct dentry *dentry,
2345 int mode)
2346{
2347 return 0;
2348}
2349
Linus Torvalds1da177e2005-04-16 15:20:36 -07002350static inline int security_inode_link (struct dentry *old_dentry,
2351 struct inode *dir,
2352 struct dentry *new_dentry)
2353{
2354 return 0;
2355}
2356
Linus Torvalds1da177e2005-04-16 15:20:36 -07002357static inline int security_inode_unlink (struct inode *dir,
2358 struct dentry *dentry)
2359{
2360 return 0;
2361}
2362
2363static inline int security_inode_symlink (struct inode *dir,
2364 struct dentry *dentry,
2365 const char *old_name)
2366{
2367 return 0;
2368}
2369
Linus Torvalds1da177e2005-04-16 15:20:36 -07002370static inline int security_inode_mkdir (struct inode *dir,
2371 struct dentry *dentry,
2372 int mode)
2373{
2374 return 0;
2375}
2376
Linus Torvalds1da177e2005-04-16 15:20:36 -07002377static inline int security_inode_rmdir (struct inode *dir,
2378 struct dentry *dentry)
2379{
2380 return 0;
2381}
2382
2383static inline int security_inode_mknod (struct inode *dir,
2384 struct dentry *dentry,
2385 int mode, dev_t dev)
2386{
2387 return 0;
2388}
2389
Linus Torvalds1da177e2005-04-16 15:20:36 -07002390static inline int security_inode_rename (struct inode *old_dir,
2391 struct dentry *old_dentry,
2392 struct inode *new_dir,
2393 struct dentry *new_dentry)
2394{
2395 return 0;
2396}
2397
Linus Torvalds1da177e2005-04-16 15:20:36 -07002398static inline int security_inode_readlink (struct dentry *dentry)
2399{
2400 return 0;
2401}
2402
2403static inline int security_inode_follow_link (struct dentry *dentry,
2404 struct nameidata *nd)
2405{
2406 return 0;
2407}
2408
2409static inline int security_inode_permission (struct inode *inode, int mask,
2410 struct nameidata *nd)
2411{
2412 return 0;
2413}
2414
2415static inline int security_inode_setattr (struct dentry *dentry,
2416 struct iattr *attr)
2417{
2418 return 0;
2419}
2420
2421static inline int security_inode_getattr (struct vfsmount *mnt,
2422 struct dentry *dentry)
2423{
2424 return 0;
2425}
2426
2427static inline void security_inode_delete (struct inode *inode)
2428{ }
2429
2430static inline int security_inode_setxattr (struct dentry *dentry, char *name,
2431 void *value, size_t size, int flags)
2432{
2433 return cap_inode_setxattr(dentry, name, value, size, flags);
2434}
2435
2436static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
2437 void *value, size_t size, int flags)
2438{ }
2439
2440static inline int security_inode_getxattr (struct dentry *dentry, char *name)
2441{
2442 return 0;
2443}
2444
2445static inline int security_inode_listxattr (struct dentry *dentry)
2446{
2447 return 0;
2448}
2449
2450static inline int security_inode_removexattr (struct dentry *dentry, char *name)
2451{
2452 return cap_inode_removexattr(dentry, name);
2453}
2454
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00002455static inline const char *security_inode_xattr_getsuffix (void)
2456{
2457 return NULL ;
2458}
2459
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00002460static 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 -07002461{
2462 return -EOPNOTSUPP;
2463}
2464
2465static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2466{
2467 return -EOPNOTSUPP;
2468}
2469
2470static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2471{
2472 return 0;
2473}
2474
2475static inline int security_file_permission (struct file *file, int mask)
2476{
2477 return 0;
2478}
2479
2480static inline int security_file_alloc (struct file *file)
2481{
2482 return 0;
2483}
2484
2485static inline void security_file_free (struct file *file)
2486{ }
2487
2488static inline int security_file_ioctl (struct file *file, unsigned int cmd,
2489 unsigned long arg)
2490{
2491 return 0;
2492}
2493
2494static inline int security_file_mmap (struct file *file, unsigned long reqprot,
2495 unsigned long prot,
2496 unsigned long flags)
2497{
2498 return 0;
2499}
2500
2501static inline int security_file_mprotect (struct vm_area_struct *vma,
2502 unsigned long reqprot,
2503 unsigned long prot)
2504{
2505 return 0;
2506}
2507
2508static inline int security_file_lock (struct file *file, unsigned int cmd)
2509{
2510 return 0;
2511}
2512
2513static inline int security_file_fcntl (struct file *file, unsigned int cmd,
2514 unsigned long arg)
2515{
2516 return 0;
2517}
2518
2519static inline int security_file_set_fowner (struct file *file)
2520{
2521 return 0;
2522}
2523
2524static inline int security_file_send_sigiotask (struct task_struct *tsk,
2525 struct fown_struct *fown,
2526 int sig)
2527{
2528 return 0;
2529}
2530
2531static inline int security_file_receive (struct file *file)
2532{
2533 return 0;
2534}
2535
2536static inline int security_task_create (unsigned long clone_flags)
2537{
2538 return 0;
2539}
2540
2541static inline int security_task_alloc (struct task_struct *p)
2542{
2543 return 0;
2544}
2545
2546static inline void security_task_free (struct task_struct *p)
2547{ }
2548
2549static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
2550 int flags)
2551{
2552 return 0;
2553}
2554
2555static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
2556 uid_t old_suid, int flags)
2557{
2558 return cap_task_post_setuid (old_ruid, old_euid, old_suid, flags);
2559}
2560
2561static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
2562 int flags)
2563{
2564 return 0;
2565}
2566
2567static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
2568{
2569 return 0;
2570}
2571
2572static inline int security_task_getpgid (struct task_struct *p)
2573{
2574 return 0;
2575}
2576
2577static inline int security_task_getsid (struct task_struct *p)
2578{
2579 return 0;
2580}
2581
David Quigleyf9008e42006-06-30 01:55:46 -07002582static inline void security_task_getsecid (struct task_struct *p, u32 *secid)
2583{ }
2584
Linus Torvalds1da177e2005-04-16 15:20:36 -07002585static inline int security_task_setgroups (struct group_info *group_info)
2586{
2587 return 0;
2588}
2589
2590static inline int security_task_setnice (struct task_struct *p, int nice)
2591{
2592 return 0;
2593}
2594
James Morris03e68062006-06-23 02:03:58 -07002595static inline int security_task_setioprio (struct task_struct *p, int ioprio)
2596{
2597 return 0;
2598}
2599
David Quigleya1836a42006-06-30 01:55:49 -07002600static inline int security_task_getioprio (struct task_struct *p)
2601{
2602 return 0;
2603}
2604
Linus Torvalds1da177e2005-04-16 15:20:36 -07002605static inline int security_task_setrlimit (unsigned int resource,
2606 struct rlimit *new_rlim)
2607{
2608 return 0;
2609}
2610
2611static inline int security_task_setscheduler (struct task_struct *p,
2612 int policy,
2613 struct sched_param *lp)
2614{
2615 return 0;
2616}
2617
2618static inline int security_task_getscheduler (struct task_struct *p)
2619{
2620 return 0;
2621}
2622
David Quigley35601542006-06-23 02:04:01 -07002623static inline int security_task_movememory (struct task_struct *p)
2624{
2625 return 0;
2626}
2627
Linus Torvalds1da177e2005-04-16 15:20:36 -07002628static inline int security_task_kill (struct task_struct *p,
David Quigleyf9008e42006-06-30 01:55:46 -07002629 struct siginfo *info, int sig,
2630 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002631{
2632 return 0;
2633}
2634
2635static inline int security_task_wait (struct task_struct *p)
2636{
2637 return 0;
2638}
2639
2640static inline int security_task_prctl (int option, unsigned long arg2,
2641 unsigned long arg3,
2642 unsigned long arg4,
2643 unsigned long arg5)
2644{
2645 return 0;
2646}
2647
2648static inline void security_task_reparent_to_init (struct task_struct *p)
2649{
2650 cap_task_reparent_to_init (p);
2651}
2652
2653static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2654{ }
2655
2656static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
2657 short flag)
2658{
2659 return 0;
2660}
2661
2662static inline int security_msg_msg_alloc (struct msg_msg * msg)
2663{
2664 return 0;
2665}
2666
2667static inline void security_msg_msg_free (struct msg_msg * msg)
2668{ }
2669
2670static inline int security_msg_queue_alloc (struct msg_queue *msq)
2671{
2672 return 0;
2673}
2674
2675static inline void security_msg_queue_free (struct msg_queue *msq)
2676{ }
2677
2678static inline int security_msg_queue_associate (struct msg_queue * msq,
2679 int msqflg)
2680{
2681 return 0;
2682}
2683
2684static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
2685{
2686 return 0;
2687}
2688
2689static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
2690 struct msg_msg * msg, int msqflg)
2691{
2692 return 0;
2693}
2694
2695static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
2696 struct msg_msg * msg,
2697 struct task_struct * target,
2698 long type, int mode)
2699{
2700 return 0;
2701}
2702
2703static inline int security_shm_alloc (struct shmid_kernel *shp)
2704{
2705 return 0;
2706}
2707
2708static inline void security_shm_free (struct shmid_kernel *shp)
2709{ }
2710
2711static inline int security_shm_associate (struct shmid_kernel * shp,
2712 int shmflg)
2713{
2714 return 0;
2715}
2716
2717static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
2718{
2719 return 0;
2720}
2721
2722static inline int security_shm_shmat (struct shmid_kernel * shp,
2723 char __user *shmaddr, int shmflg)
2724{
2725 return 0;
2726}
2727
2728static inline int security_sem_alloc (struct sem_array *sma)
2729{
2730 return 0;
2731}
2732
2733static inline void security_sem_free (struct sem_array *sma)
2734{ }
2735
2736static inline int security_sem_associate (struct sem_array * sma, int semflg)
2737{
2738 return 0;
2739}
2740
2741static inline int security_sem_semctl (struct sem_array * sma, int cmd)
2742{
2743 return 0;
2744}
2745
2746static inline int security_sem_semop (struct sem_array * sma,
2747 struct sembuf * sops, unsigned nsops,
2748 int alter)
2749{
2750 return 0;
2751}
2752
2753static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
2754{ }
2755
2756static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
2757{
2758 return -EINVAL;
2759}
2760
2761static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2762{
2763 return -EINVAL;
2764}
2765
2766static inline int security_netlink_send (struct sock *sk, struct sk_buff *skb)
2767{
2768 return cap_netlink_send (sk, skb);
2769}
2770
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07002771static inline int security_netlink_recv (struct sk_buff *skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002772{
Darrel Goeddelc7bdb542006-06-27 13:26:11 -07002773 return cap_netlink_recv (skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002774}
2775
Randy Dunlaped5a9272006-02-01 03:05:00 -08002776static inline struct dentry *securityfs_create_dir(const char *name,
2777 struct dentry *parent)
2778{
2779 return ERR_PTR(-ENODEV);
2780}
2781
2782static inline struct dentry *securityfs_create_file(const char *name,
2783 mode_t mode,
2784 struct dentry *parent,
2785 void *data,
2786 struct file_operations *fops)
2787{
2788 return ERR_PTR(-ENODEV);
2789}
2790
2791static inline void securityfs_remove(struct dentry *dentry)
2792{
2793}
2794
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002795static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2796{
2797 return -EOPNOTSUPP;
2798}
2799
2800static inline void security_release_secctx(char *secdata, u32 seclen)
2801{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002802}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002803#endif /* CONFIG_SECURITY */
2804
2805#ifdef CONFIG_SECURITY_NETWORK
2806static inline int security_unix_stream_connect(struct socket * sock,
2807 struct socket * other,
2808 struct sock * newsk)
2809{
2810 return security_ops->unix_stream_connect(sock, other, newsk);
2811}
2812
2813
2814static inline int security_unix_may_send(struct socket * sock,
2815 struct socket * other)
2816{
2817 return security_ops->unix_may_send(sock, other);
2818}
2819
2820static inline int security_socket_create (int family, int type,
2821 int protocol, int kern)
2822{
2823 return security_ops->socket_create(family, type, protocol, kern);
2824}
2825
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002826static inline int security_socket_post_create(struct socket * sock,
2827 int family,
2828 int type,
2829 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002830{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002831 return security_ops->socket_post_create(sock, family, type,
2832 protocol, kern);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002833}
2834
2835static inline int security_socket_bind(struct socket * sock,
2836 struct sockaddr * address,
2837 int addrlen)
2838{
2839 return security_ops->socket_bind(sock, address, addrlen);
2840}
2841
2842static inline int security_socket_connect(struct socket * sock,
2843 struct sockaddr * address,
2844 int addrlen)
2845{
2846 return security_ops->socket_connect(sock, address, addrlen);
2847}
2848
2849static inline int security_socket_listen(struct socket * sock, int backlog)
2850{
2851 return security_ops->socket_listen(sock, backlog);
2852}
2853
2854static inline int security_socket_accept(struct socket * sock,
2855 struct socket * newsock)
2856{
2857 return security_ops->socket_accept(sock, newsock);
2858}
2859
2860static inline void security_socket_post_accept(struct socket * sock,
2861 struct socket * newsock)
2862{
2863 security_ops->socket_post_accept(sock, newsock);
2864}
2865
2866static inline int security_socket_sendmsg(struct socket * sock,
2867 struct msghdr * msg, int size)
2868{
2869 return security_ops->socket_sendmsg(sock, msg, size);
2870}
2871
2872static inline int security_socket_recvmsg(struct socket * sock,
2873 struct msghdr * msg, int size,
2874 int flags)
2875{
2876 return security_ops->socket_recvmsg(sock, msg, size, flags);
2877}
2878
2879static inline int security_socket_getsockname(struct socket * sock)
2880{
2881 return security_ops->socket_getsockname(sock);
2882}
2883
2884static inline int security_socket_getpeername(struct socket * sock)
2885{
2886 return security_ops->socket_getpeername(sock);
2887}
2888
2889static inline int security_socket_getsockopt(struct socket * sock,
2890 int level, int optname)
2891{
2892 return security_ops->socket_getsockopt(sock, level, optname);
2893}
2894
2895static inline int security_socket_setsockopt(struct socket * sock,
2896 int level, int optname)
2897{
2898 return security_ops->socket_setsockopt(sock, level, optname);
2899}
2900
2901static inline int security_socket_shutdown(struct socket * sock, int how)
2902{
2903 return security_ops->socket_shutdown(sock, how);
2904}
2905
2906static inline int security_sock_rcv_skb (struct sock * sk,
2907 struct sk_buff * skb)
2908{
2909 return security_ops->socket_sock_rcv_skb (sk, skb);
2910}
2911
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002912static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2913 int __user *optlen, unsigned len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002914{
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002915 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
2916}
2917
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002918static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002919{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002920 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002921}
2922
Al Virodd0fc662005-10-07 07:46:04 +01002923static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002924{
2925 return security_ops->sk_alloc_security(sk, family, priority);
2926}
2927
2928static inline void security_sk_free(struct sock *sk)
2929{
2930 return security_ops->sk_free_security(sk);
2931}
Trent Jaegerdf718372005-12-13 23:12:27 -08002932
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002933static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2934{
2935 return security_ops->sk_clone_security(sk, newsk);
2936}
2937
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002938static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002939{
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002940 security_ops->sk_getsecid(sk, &fl->secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08002941}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002942
2943static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2944{
2945 security_ops->req_classify_flow(req, fl);
2946}
2947
2948static inline void security_sock_graft(struct sock* sk, struct socket *parent)
2949{
2950 security_ops->sock_graft(sk, parent);
2951}
2952
2953static inline int security_inet_conn_request(struct sock *sk,
2954 struct sk_buff *skb, struct request_sock *req)
2955{
2956 return security_ops->inet_conn_request(sk, skb, req);
2957}
2958
2959static inline void security_inet_csk_clone(struct sock *newsk,
2960 const struct request_sock *req)
2961{
2962 security_ops->inet_csk_clone(newsk, req);
2963}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002964#else /* CONFIG_SECURITY_NETWORK */
2965static inline int security_unix_stream_connect(struct socket * sock,
2966 struct socket * other,
2967 struct sock * newsk)
2968{
2969 return 0;
2970}
2971
2972static inline int security_unix_may_send(struct socket * sock,
2973 struct socket * other)
2974{
2975 return 0;
2976}
2977
2978static inline int security_socket_create (int family, int type,
2979 int protocol, int kern)
2980{
2981 return 0;
2982}
2983
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002984static inline int security_socket_post_create(struct socket * sock,
2985 int family,
2986 int type,
2987 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002988{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002989 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002990}
2991
2992static inline int security_socket_bind(struct socket * sock,
2993 struct sockaddr * address,
2994 int addrlen)
2995{
2996 return 0;
2997}
2998
2999static inline int security_socket_connect(struct socket * sock,
3000 struct sockaddr * address,
3001 int addrlen)
3002{
3003 return 0;
3004}
3005
3006static inline int security_socket_listen(struct socket * sock, int backlog)
3007{
3008 return 0;
3009}
3010
3011static inline int security_socket_accept(struct socket * sock,
3012 struct socket * newsock)
3013{
3014 return 0;
3015}
3016
3017static inline void security_socket_post_accept(struct socket * sock,
3018 struct socket * newsock)
3019{
3020}
3021
3022static inline int security_socket_sendmsg(struct socket * sock,
3023 struct msghdr * msg, int size)
3024{
3025 return 0;
3026}
3027
3028static inline int security_socket_recvmsg(struct socket * sock,
3029 struct msghdr * msg, int size,
3030 int flags)
3031{
3032 return 0;
3033}
3034
3035static inline int security_socket_getsockname(struct socket * sock)
3036{
3037 return 0;
3038}
3039
3040static inline int security_socket_getpeername(struct socket * sock)
3041{
3042 return 0;
3043}
3044
3045static inline int security_socket_getsockopt(struct socket * sock,
3046 int level, int optname)
3047{
3048 return 0;
3049}
3050
3051static inline int security_socket_setsockopt(struct socket * sock,
3052 int level, int optname)
3053{
3054 return 0;
3055}
3056
3057static inline int security_socket_shutdown(struct socket * sock, int how)
3058{
3059 return 0;
3060}
3061static inline int security_sock_rcv_skb (struct sock * sk,
3062 struct sk_buff * skb)
3063{
3064 return 0;
3065}
3066
Catherine Zhang2c7946a2006-03-20 22:41:23 -08003067static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
3068 int __user *optlen, unsigned len)
3069{
3070 return -ENOPROTOOPT;
3071}
3072
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07003073static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003074{
3075 return -ENOPROTOOPT;
3076}
3077
Al Virodd0fc662005-10-07 07:46:04 +01003078static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003079{
3080 return 0;
3081}
3082
3083static inline void security_sk_free(struct sock *sk)
3084{
3085}
Trent Jaegerdf718372005-12-13 23:12:27 -08003086
Venkat Yekkirala892c1412006-08-04 23:08:56 -07003087static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
3088{
3089}
3090
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003091static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08003092{
Trent Jaegerdf718372005-12-13 23:12:27 -08003093}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07003094
3095static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
3096{
3097}
3098
3099static inline void security_sock_graft(struct sock* sk, struct socket *parent)
3100{
3101}
3102
3103static inline int security_inet_conn_request(struct sock *sk,
3104 struct sk_buff *skb, struct request_sock *req)
3105{
3106 return 0;
3107}
3108
3109static inline void security_inet_csk_clone(struct sock *newsk,
3110 const struct request_sock *req)
3111{
3112}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003113#endif /* CONFIG_SECURITY_NETWORK */
3114
Trent Jaegerdf718372005-12-13 23:12:27 -08003115#ifdef CONFIG_SECURITY_NETWORK_XFRM
3116static inline int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
3117{
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06003118 return security_ops->xfrm_policy_alloc_security(xp, sec_ctx);
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07003119}
3120
Trent Jaegerdf718372005-12-13 23:12:27 -08003121static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
3122{
3123 return security_ops->xfrm_policy_clone_security(old, new);
3124}
3125
3126static inline void security_xfrm_policy_free(struct xfrm_policy *xp)
3127{
3128 security_ops->xfrm_policy_free_security(xp);
3129}
3130
Catherine Zhangc8c05a82006-06-08 23:39:49 -07003131static inline int security_xfrm_policy_delete(struct xfrm_policy *xp)
3132{
3133 return security_ops->xfrm_policy_delete_security(xp);
3134}
3135
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003136static inline int security_xfrm_state_alloc(struct xfrm_state *x,
3137 struct xfrm_user_sec_ctx *sec_ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08003138{
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06003139 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003140}
3141
3142static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
3143 struct xfrm_sec_ctx *polsec, u32 secid)
3144{
3145 if (!polsec)
3146 return 0;
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06003147 /*
3148 * We want the context to be taken from secid which is usually
3149 * from the sock.
3150 */
3151 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08003152}
3153
Catherine Zhangc8c05a82006-06-08 23:39:49 -07003154static inline int security_xfrm_state_delete(struct xfrm_state *x)
3155{
3156 return security_ops->xfrm_state_delete_security(x);
3157}
3158
Trent Jaegerdf718372005-12-13 23:12:27 -08003159static inline void security_xfrm_state_free(struct xfrm_state *x)
3160{
3161 security_ops->xfrm_state_free_security(x);
3162}
3163
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003164static inline int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08003165{
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003166 return security_ops->xfrm_policy_lookup(xp, fl_secid, dir);
3167}
3168
3169static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
3170 struct xfrm_policy *xp, struct flowi *fl)
3171{
3172 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
3173}
3174
Venkat Yekkirala5b368e62006-10-05 15:42:18 -05003175static inline int security_xfrm_flow_state_match(struct flowi *fl,
3176 struct xfrm_state *xfrm, struct xfrm_policy *xp)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003177{
Venkat Yekkirala5b368e62006-10-05 15:42:18 -05003178 return security_ops->xfrm_flow_state_match(fl, xfrm, xp);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003179}
3180
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003181static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003182{
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003183 return security_ops->xfrm_decode_session(skb, secid, 1);
3184}
3185
3186static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
3187{
3188 int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
3189
3190 BUG_ON(rc);
Trent Jaegerdf718372005-12-13 23:12:27 -08003191}
3192#else /* CONFIG_SECURITY_NETWORK_XFRM */
3193static inline int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
3194{
3195 return 0;
3196}
3197
3198static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
3199{
3200 return 0;
3201}
3202
3203static inline void security_xfrm_policy_free(struct xfrm_policy *xp)
3204{
3205}
3206
Catherine Zhangc8c05a82006-06-08 23:39:49 -07003207static inline int security_xfrm_policy_delete(struct xfrm_policy *xp)
3208{
3209 return 0;
3210}
3211
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003212static inline int security_xfrm_state_alloc(struct xfrm_state *x,
3213 struct xfrm_user_sec_ctx *sec_ctx)
3214{
3215 return 0;
3216}
3217
3218static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
3219 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08003220{
3221 return 0;
3222}
3223
3224static inline void security_xfrm_state_free(struct xfrm_state *x)
3225{
3226}
3227
David S. Miller6f68dc32006-06-08 23:58:52 -07003228static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07003229{
3230 return 0;
3231}
3232
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003233static inline int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08003234{
3235 return 0;
3236}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003237
3238static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
3239 struct xfrm_policy *xp, struct flowi *fl)
3240{
3241 return 1;
3242}
3243
3244static inline int security_xfrm_flow_state_match(struct flowi *fl,
Venkat Yekkirala5b368e62006-10-05 15:42:18 -05003245 struct xfrm_state *xfrm, struct xfrm_policy *xp)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003246{
3247 return 1;
3248}
3249
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003250static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07003251{
3252 return 0;
3253}
3254
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07003255static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
3256{
3257}
3258
Trent Jaegerdf718372005-12-13 23:12:27 -08003259#endif /* CONFIG_SECURITY_NETWORK_XFRM */
3260
David Howells29db9192005-10-30 15:02:44 -08003261#ifdef CONFIG_KEYS
3262#ifdef CONFIG_SECURITY
Michael LeMayd7200242006-06-22 14:47:17 -07003263static inline int security_key_alloc(struct key *key,
David Howells7e047ef2006-06-26 00:24:50 -07003264 struct task_struct *tsk,
3265 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08003266{
David Howells7e047ef2006-06-26 00:24:50 -07003267 return security_ops->key_alloc(key, tsk, flags);
David Howells29db9192005-10-30 15:02:44 -08003268}
3269
3270static inline void security_key_free(struct key *key)
3271{
3272 security_ops->key_free(key);
3273}
3274
3275static inline int security_key_permission(key_ref_t key_ref,
3276 struct task_struct *context,
3277 key_perm_t perm)
3278{
3279 return security_ops->key_permission(key_ref, context, perm);
3280}
3281
3282#else
3283
Michael LeMayd7200242006-06-22 14:47:17 -07003284static inline int security_key_alloc(struct key *key,
David Howells7e047ef2006-06-26 00:24:50 -07003285 struct task_struct *tsk,
3286 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08003287{
3288 return 0;
3289}
3290
3291static inline void security_key_free(struct key *key)
3292{
3293}
3294
3295static inline int security_key_permission(key_ref_t key_ref,
3296 struct task_struct *context,
3297 key_perm_t perm)
3298{
3299 return 0;
3300}
3301
3302#endif
3303#endif /* CONFIG_KEYS */
3304
Linus Torvalds1da177e2005-04-16 15:20:36 -07003305#endif /* ! __LINUX_SECURITY_H */
3306