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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Linux Security plug
3 *
4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
19 *
20 */
21
22#ifndef __LINUX_SECURITY_H
23#define __LINUX_SECURITY_H
24
25#include <linux/fs.h>
26#include <linux/binfmts.h>
27#include <linux/signal.h>
28#include <linux/resource.h>
29#include <linux/sem.h>
30#include <linux/shm.h>
31#include <linux/msg.h>
32#include <linux/sched.h>
David Howells29db9192005-10-30 15:02:44 -080033#include <linux/key.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
35struct ctl_table;
36
37/*
38 * These functions are in security/capability.c and are used
39 * as the default capabilities functions
40 */
41extern int cap_capable (struct task_struct *tsk, int cap);
42extern int cap_settime (struct timespec *ts, struct timezone *tz);
43extern int cap_ptrace (struct task_struct *parent, struct task_struct *child);
44extern int cap_capget (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
45extern int cap_capset_check (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
46extern void cap_capset_set (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
47extern int cap_bprm_set_security (struct linux_binprm *bprm);
48extern void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe);
49extern int cap_bprm_secureexec(struct linux_binprm *bprm);
50extern int cap_inode_setxattr(struct dentry *dentry, char *name, void *value, size_t size, int flags);
51extern int cap_inode_removexattr(struct dentry *dentry, char *name);
52extern int cap_task_post_setuid (uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags);
53extern void cap_task_reparent_to_init (struct task_struct *p);
54extern int cap_syslog (int type);
55extern int cap_vm_enough_memory (long pages);
56
57struct msghdr;
58struct sk_buff;
59struct sock;
60struct sockaddr;
61struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -080062struct flowi;
63struct dst_entry;
64struct xfrm_selector;
65struct xfrm_policy;
66struct xfrm_state;
67struct xfrm_user_sec_ctx;
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
69extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
70extern int cap_netlink_recv(struct sk_buff *skb);
71
72/*
73 * Values used in the task_security_ops calls
74 */
75/* setuid or setgid, id0 == uid or gid */
76#define LSM_SETID_ID 1
77
78/* setreuid or setregid, id0 == real, id1 == eff */
79#define LSM_SETID_RE 2
80
81/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
82#define LSM_SETID_RES 4
83
84/* setfsuid or setfsgid, id0 == fsuid or fsgid */
85#define LSM_SETID_FS 8
86
87/* forward declares to avoid warnings */
88struct nfsctl_arg;
89struct sched_param;
90struct swap_info_struct;
91
92/* bprm_apply_creds unsafe reasons */
93#define LSM_UNSAFE_SHARE 1
94#define LSM_UNSAFE_PTRACE 2
95#define LSM_UNSAFE_PTRACE_CAP 4
96
97#ifdef CONFIG_SECURITY
98
99/**
100 * struct security_operations - main security structure
101 *
102 * Security hooks for program execution operations.
103 *
104 * @bprm_alloc_security:
105 * Allocate and attach a security structure to the @bprm->security field.
106 * The security field is initialized to NULL when the bprm structure is
107 * allocated.
108 * @bprm contains the linux_binprm structure to be modified.
109 * Return 0 if operation was successful.
110 * @bprm_free_security:
111 * @bprm contains the linux_binprm structure to be modified.
112 * Deallocate and clear the @bprm->security field.
113 * @bprm_apply_creds:
114 * Compute and set the security attributes of a process being transformed
115 * by an execve operation based on the old attributes (current->security)
116 * and the information saved in @bprm->security by the set_security hook.
117 * Since this hook function (and its caller) are void, this hook can not
118 * return an error. However, it can leave the security attributes of the
119 * process unchanged if an access failure occurs at this point.
120 * bprm_apply_creds is called under task_lock. @unsafe indicates various
121 * reasons why it may be unsafe to change security state.
122 * @bprm contains the linux_binprm structure.
123 * @bprm_post_apply_creds:
124 * Runs after bprm_apply_creds with the task_lock dropped, so that
125 * functions which cannot be called safely under the task_lock can
126 * be used. This hook is a good place to perform state changes on
127 * the process such as closing open file descriptors to which access
128 * is no longer granted if the attributes were changed.
129 * Note that a security module might need to save state between
130 * bprm_apply_creds and bprm_post_apply_creds to store the decision
131 * on whether the process may proceed.
132 * @bprm contains the linux_binprm structure.
133 * @bprm_set_security:
134 * Save security information in the bprm->security field, typically based
135 * on information about the bprm->file, for later use by the apply_creds
136 * hook. This hook may also optionally check permissions (e.g. for
137 * transitions between security domains).
138 * This hook may be called multiple times during a single execve, e.g. for
139 * interpreters. The hook can tell whether it has already been called by
140 * checking to see if @bprm->security is non-NULL. If so, then the hook
141 * may decide either to retain the security information saved earlier or
142 * to replace it.
143 * @bprm contains the linux_binprm structure.
144 * Return 0 if the hook is successful and permission is granted.
145 * @bprm_check_security:
146 * This hook mediates the point when a search for a binary handler will
147 * begin. It allows a check the @bprm->security value which is set in
148 * the preceding set_security call. The primary difference from
149 * set_security is that the argv list and envp list are reliably
150 * available in @bprm. This hook may be called multiple times
151 * during a single execve; and in each pass set_security is called
152 * first.
153 * @bprm contains the linux_binprm structure.
154 * Return 0 if the hook is successful and permission is granted.
155 * @bprm_secureexec:
156 * Return a boolean value (0 or 1) indicating whether a "secure exec"
157 * is required. The flag is passed in the auxiliary table
158 * on the initial stack to the ELF interpreter to indicate whether libc
159 * should enable secure mode.
160 * @bprm contains the linux_binprm structure.
161 *
162 * Security hooks for filesystem operations.
163 *
164 * @sb_alloc_security:
165 * Allocate and attach a security structure to the sb->s_security field.
166 * The s_security field is initialized to NULL when the structure is
167 * allocated.
168 * @sb contains the super_block structure to be modified.
169 * Return 0 if operation was successful.
170 * @sb_free_security:
171 * Deallocate and clear the sb->s_security field.
172 * @sb contains the super_block structure to be modified.
173 * @sb_statfs:
174 * Check permission before obtaining filesystem statistics for the @sb
175 * filesystem.
176 * @sb contains the super_block structure for the filesystem.
177 * Return 0 if permission is granted.
178 * @sb_mount:
179 * Check permission before an object specified by @dev_name is mounted on
180 * the mount point named by @nd. For an ordinary mount, @dev_name
181 * identifies a device if the file system type requires a device. For a
182 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
183 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
184 * pathname of the object being mounted.
185 * @dev_name contains the name for object being mounted.
186 * @nd contains the nameidata structure for mount point object.
187 * @type contains the filesystem type.
188 * @flags contains the mount flags.
189 * @data contains the filesystem-specific data.
190 * Return 0 if permission is granted.
191 * @sb_copy_data:
192 * Allow mount option data to be copied prior to parsing by the filesystem,
193 * so that the security module can extract security-specific mount
194 * options cleanly (a filesystem may modify the data e.g. with strsep()).
195 * This also allows the original mount data to be stripped of security-
196 * specific options to avoid having to make filesystems aware of them.
197 * @type the type of filesystem being mounted.
198 * @orig the original mount data copied from userspace.
199 * @copy copied data which will be passed to the security module.
200 * Returns 0 if the copy was successful.
201 * @sb_check_sb:
202 * Check permission before the device with superblock @mnt->sb is mounted
203 * on the mount point named by @nd.
204 * @mnt contains the vfsmount for device being mounted.
205 * @nd contains the nameidata object for the mount point.
206 * Return 0 if permission is granted.
207 * @sb_umount:
208 * Check permission before the @mnt file system is unmounted.
209 * @mnt contains the mounted file system.
210 * @flags contains the unmount flags, e.g. MNT_FORCE.
211 * Return 0 if permission is granted.
212 * @sb_umount_close:
213 * Close any files in the @mnt mounted filesystem that are held open by
214 * the security module. This hook is called during an umount operation
215 * prior to checking whether the filesystem is still busy.
216 * @mnt contains the mounted filesystem.
217 * @sb_umount_busy:
218 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
219 * any files that were closed by umount_close. This hook is called during
220 * an umount operation if the umount fails after a call to the
221 * umount_close hook.
222 * @mnt contains the mounted filesystem.
223 * @sb_post_remount:
224 * Update the security module's state when a filesystem is remounted.
225 * This hook is only called if the remount was successful.
226 * @mnt contains the mounted file system.
227 * @flags contains the new filesystem flags.
228 * @data contains the filesystem-specific data.
229 * @sb_post_mountroot:
230 * Update the security module's state when the root filesystem is mounted.
231 * This hook is only called if the mount was successful.
232 * @sb_post_addmount:
233 * Update the security module's state when a filesystem is mounted.
234 * This hook is called any time a mount is successfully grafetd to
235 * the tree.
236 * @mnt contains the mounted filesystem.
237 * @mountpoint_nd contains the nameidata structure for the mount point.
238 * @sb_pivotroot:
239 * Check permission before pivoting the root filesystem.
240 * @old_nd contains the nameidata structure for the new location of the current root (put_old).
241 * @new_nd contains the nameidata structure for the new root (new_root).
242 * Return 0 if permission is granted.
243 * @sb_post_pivotroot:
244 * Update module state after a successful pivot.
245 * @old_nd contains the nameidata structure for the old root.
246 * @new_nd contains the nameidata structure for the new root.
247 *
248 * Security hooks for inode operations.
249 *
250 * @inode_alloc_security:
251 * Allocate and attach a security structure to @inode->i_security. The
252 * i_security field is initialized to NULL when the inode structure is
253 * allocated.
254 * @inode contains the inode structure.
255 * Return 0 if operation was successful.
256 * @inode_free_security:
257 * @inode contains the inode structure.
258 * Deallocate the inode security structure and set @inode->i_security to
259 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700260 * @inode_init_security:
261 * Obtain the security attribute name suffix and value to set on a newly
262 * created inode and set up the incore security field for the new inode.
263 * This hook is called by the fs code as part of the inode creation
264 * transaction and provides for atomic labeling of the inode, unlike
265 * the post_create/mkdir/... hooks called by the VFS. The hook function
266 * is expected to allocate the name and value via kmalloc, with the caller
267 * being responsible for calling kfree after using them.
268 * If the security module does not use security attributes or does
269 * not wish to put a security attribute on this particular inode,
270 * then it should return -EOPNOTSUPP to skip this processing.
271 * @inode contains the inode structure of the newly created inode.
272 * @dir contains the inode structure of the parent directory.
273 * @name will be set to the allocated name suffix (e.g. selinux).
274 * @value will be set to the allocated attribute value.
275 * @len will be set to the length of the value.
276 * Returns 0 if @name and @value have been successfully set,
277 * -EOPNOTSUPP if no security attribute is needed, or
278 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 * @inode_create:
280 * Check permission to create a regular file.
281 * @dir contains inode structure of the parent of the new file.
282 * @dentry contains the dentry structure for the file to be created.
283 * @mode contains the file mode of the file to be created.
284 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 * @inode_link:
286 * Check permission before creating a new hard link to a file.
287 * @old_dentry contains the dentry structure for an existing link to the file.
288 * @dir contains the inode structure of the parent directory of the new link.
289 * @new_dentry contains the dentry structure for the new link.
290 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 * @inode_unlink:
292 * Check the permission to remove a hard link to a file.
293 * @dir contains the inode structure of parent directory of the file.
294 * @dentry contains the dentry structure for file to be unlinked.
295 * Return 0 if permission is granted.
296 * @inode_symlink:
297 * Check the permission to create a symbolic link to a file.
298 * @dir contains the inode structure of parent directory of the symbolic link.
299 * @dentry contains the dentry structure of the symbolic link.
300 * @old_name contains the pathname of file.
301 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 * @inode_mkdir:
303 * Check permissions to create a new directory in the existing directory
304 * associated with inode strcture @dir.
305 * @dir containst the inode structure of parent of the directory to be created.
306 * @dentry contains the dentry structure of new directory.
307 * @mode contains the mode of new directory.
308 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 * @inode_rmdir:
310 * Check the permission to remove a directory.
311 * @dir contains the inode structure of parent of the directory to be removed.
312 * @dentry contains the dentry structure of directory to be removed.
313 * Return 0 if permission is granted.
314 * @inode_mknod:
315 * Check permissions when creating a special file (or a socket or a fifo
316 * file created via the mknod system call). Note that if mknod operation
317 * is being done for a regular file, then the create hook will be called
318 * and not this hook.
319 * @dir contains the inode structure of parent of the new file.
320 * @dentry contains the dentry structure of the new file.
321 * @mode contains the mode of the new file.
322 * @dev contains the the device number.
323 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 * @inode_rename:
325 * Check for permission to rename a file or directory.
326 * @old_dir contains the inode structure for parent of the old link.
327 * @old_dentry contains the dentry structure of the old link.
328 * @new_dir contains the inode structure for parent of the new link.
329 * @new_dentry contains the dentry structure of the new link.
330 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 * @inode_readlink:
332 * Check the permission to read the symbolic link.
333 * @dentry contains the dentry structure for the file link.
334 * Return 0 if permission is granted.
335 * @inode_follow_link:
336 * Check permission to follow a symbolic link when looking up a pathname.
337 * @dentry contains the dentry structure for the link.
338 * @nd contains the nameidata structure for the parent directory.
339 * Return 0 if permission is granted.
340 * @inode_permission:
341 * Check permission before accessing an inode. This hook is called by the
342 * existing Linux permission function, so a security module can use it to
343 * provide additional checking for existing Linux permission checks.
344 * Notice that this hook is called when a file is opened (as well as many
345 * other operations), whereas the file_security_ops permission hook is
346 * called when the actual read/write operations are performed.
347 * @inode contains the inode structure to check.
348 * @mask contains the permission mask.
349 * @nd contains the nameidata (may be NULL).
350 * Return 0 if permission is granted.
351 * @inode_setattr:
352 * Check permission before setting file attributes. Note that the kernel
353 * call to notify_change is performed from several locations, whenever
354 * file attributes change (such as when a file is truncated, chown/chmod
355 * operations, transferring disk quotas, etc).
356 * @dentry contains the dentry structure for the file.
357 * @attr is the iattr structure containing the new file attributes.
358 * Return 0 if permission is granted.
359 * @inode_getattr:
360 * Check permission before obtaining file attributes.
361 * @mnt is the vfsmount where the dentry was looked up
362 * @dentry contains the dentry structure for the file.
363 * Return 0 if permission is granted.
364 * @inode_delete:
365 * @inode contains the inode structure for deleted inode.
366 * This hook is called when a deleted inode is released (i.e. an inode
367 * with no hard links has its use count drop to zero). A security module
368 * can use this hook to release any persistent label associated with the
369 * inode.
370 * @inode_setxattr:
371 * Check permission before setting the extended attributes
372 * @value identified by @name for @dentry.
373 * Return 0 if permission is granted.
374 * @inode_post_setxattr:
375 * Update inode security field after successful setxattr operation.
376 * @value identified by @name for @dentry.
377 * @inode_getxattr:
378 * Check permission before obtaining the extended attributes
379 * identified by @name for @dentry.
380 * Return 0 if permission is granted.
381 * @inode_listxattr:
382 * Check permission before obtaining the list of extended attribute
383 * names for @dentry.
384 * Return 0 if permission is granted.
385 * @inode_removexattr:
386 * Check permission before removing the extended attribute
387 * identified by @name for @dentry.
388 * Return 0 if permission is granted.
389 * @inode_getsecurity:
390 * Copy the extended attribute representation of the security label
391 * associated with @name for @inode into @buffer. @buffer may be
392 * NULL to request the size of the buffer required. @size indicates
393 * the size of @buffer in bytes. Note that @name is the remainder
394 * of the attribute name after the security. prefix has been removed.
James Morrisd381d8a2005-10-30 14:59:22 -0800395 * @err is the return value from the preceding fs getxattr call,
396 * and can be used by the security module to determine whether it
397 * should try and canonicalize the attribute value.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 * Return number of bytes used/required on success.
399 * @inode_setsecurity:
400 * Set the security label associated with @name for @inode from the
401 * extended attribute value @value. @size indicates the size of the
402 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
403 * Note that @name is the remainder of the attribute name after the
404 * security. prefix has been removed.
405 * Return 0 on success.
406 * @inode_listsecurity:
407 * Copy the extended attribute names for the security labels
408 * associated with @inode into @buffer. The maximum size of @buffer
409 * is specified by @buffer_size. @buffer may be NULL to request
410 * the size of the buffer required.
411 * Returns number of bytes used/required on success.
412 *
413 * Security hooks for file operations
414 *
415 * @file_permission:
416 * Check file permissions before accessing an open file. This hook is
417 * called by various operations that read or write files. A security
418 * module can use this hook to perform additional checking on these
419 * operations, e.g. to revalidate permissions on use to support privilege
420 * bracketing or policy changes. Notice that this hook is used when the
421 * actual read/write operations are performed, whereas the
422 * inode_security_ops hook is called when a file is opened (as well as
423 * many other operations).
424 * Caveat: Although this hook can be used to revalidate permissions for
425 * various system call operations that read or write files, it does not
426 * address the revalidation of permissions for memory-mapped files.
427 * Security modules must handle this separately if they need such
428 * revalidation.
429 * @file contains the file structure being accessed.
430 * @mask contains the requested permissions.
431 * Return 0 if permission is granted.
432 * @file_alloc_security:
433 * Allocate and attach a security structure to the file->f_security field.
434 * The security field is initialized to NULL when the structure is first
435 * created.
436 * @file contains the file structure to secure.
437 * Return 0 if the hook is successful and permission is granted.
438 * @file_free_security:
439 * Deallocate and free any security structures stored in file->f_security.
440 * @file contains the file structure being modified.
441 * @file_ioctl:
442 * @file contains the file structure.
443 * @cmd contains the operation to perform.
444 * @arg contains the operational arguments.
445 * Check permission for an ioctl operation on @file. Note that @arg can
446 * sometimes represents a user space pointer; in other cases, it may be a
447 * simple integer value. When @arg represents a user space pointer, it
448 * should never be used by the security module.
449 * Return 0 if permission is granted.
450 * @file_mmap :
451 * Check permissions for a mmap operation. The @file may be NULL, e.g.
452 * if mapping anonymous memory.
453 * @file contains the file structure for file to map (may be NULL).
454 * @reqprot contains the protection requested by the application.
455 * @prot contains the protection that will be applied by the kernel.
456 * @flags contains the operational flags.
457 * Return 0 if permission is granted.
458 * @file_mprotect:
459 * Check permissions before changing memory access permissions.
460 * @vma contains the memory region to modify.
461 * @reqprot contains the protection requested by the application.
462 * @prot contains the protection that will be applied by the kernel.
463 * Return 0 if permission is granted.
464 * @file_lock:
465 * Check permission before performing file locking operations.
466 * Note: this hook mediates both flock and fcntl style locks.
467 * @file contains the file structure.
468 * @cmd contains the posix-translated lock operation to perform
469 * (e.g. F_RDLCK, F_WRLCK).
470 * Return 0 if permission is granted.
471 * @file_fcntl:
472 * Check permission before allowing the file operation specified by @cmd
473 * from being performed on the file @file. Note that @arg can sometimes
474 * represents a user space pointer; in other cases, it may be a simple
475 * integer value. When @arg represents a user space pointer, it should
476 * never be used by the security module.
477 * @file contains the file structure.
478 * @cmd contains the operation to be performed.
479 * @arg contains the operational arguments.
480 * Return 0 if permission is granted.
481 * @file_set_fowner:
482 * Save owner security information (typically from current->security) in
483 * file->f_security for later use by the send_sigiotask hook.
484 * @file contains the file structure to update.
485 * Return 0 on success.
486 * @file_send_sigiotask:
487 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
488 * process @tsk. Note that this hook is sometimes called from interrupt.
489 * Note that the fown_struct, @fown, is never outside the context of a
490 * struct file, so the file structure (and associated security information)
491 * can always be obtained:
492 * (struct file *)((long)fown - offsetof(struct file,f_owner));
493 * @tsk contains the structure of task receiving signal.
494 * @fown contains the file owner information.
495 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
496 * Return 0 if permission is granted.
497 * @file_receive:
498 * This hook allows security modules to control the ability of a process
499 * to receive an open file descriptor via socket IPC.
500 * @file contains the file structure being received.
501 * Return 0 if permission is granted.
502 *
503 * Security hooks for task operations.
504 *
505 * @task_create:
506 * Check permission before creating a child process. See the clone(2)
507 * manual page for definitions of the @clone_flags.
508 * @clone_flags contains the flags indicating what should be shared.
509 * Return 0 if permission is granted.
510 * @task_alloc_security:
511 * @p contains the task_struct for child process.
512 * Allocate and attach a security structure to the p->security field. The
513 * security field is initialized to NULL when the task structure is
514 * allocated.
515 * Return 0 if operation was successful.
516 * @task_free_security:
517 * @p contains the task_struct for process.
518 * Deallocate and clear the p->security field.
519 * @task_setuid:
520 * Check permission before setting one or more of the user identity
521 * attributes of the current process. The @flags parameter indicates
522 * which of the set*uid system calls invoked this hook and how to
523 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
524 * definitions at the beginning of this file for the @flags values and
525 * their meanings.
526 * @id0 contains a uid.
527 * @id1 contains a uid.
528 * @id2 contains a uid.
529 * @flags contains one of the LSM_SETID_* values.
530 * Return 0 if permission is granted.
531 * @task_post_setuid:
532 * Update the module's state after setting one or more of the user
533 * identity attributes of the current process. The @flags parameter
534 * indicates which of the set*uid system calls invoked this hook. If
535 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
536 * parameters are not used.
537 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
538 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
539 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
540 * @flags contains one of the LSM_SETID_* values.
541 * Return 0 on success.
542 * @task_setgid:
543 * Check permission before setting one or more of the group identity
544 * attributes of the current process. The @flags parameter indicates
545 * which of the set*gid system calls invoked this hook and how to
546 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
547 * definitions at the beginning of this file for the @flags values and
548 * their meanings.
549 * @id0 contains a gid.
550 * @id1 contains a gid.
551 * @id2 contains a gid.
552 * @flags contains one of the LSM_SETID_* values.
553 * Return 0 if permission is granted.
554 * @task_setpgid:
555 * Check permission before setting the process group identifier of the
556 * process @p to @pgid.
557 * @p contains the task_struct for process being modified.
558 * @pgid contains the new pgid.
559 * Return 0 if permission is granted.
560 * @task_getpgid:
561 * Check permission before getting the process group identifier of the
562 * process @p.
563 * @p contains the task_struct for the process.
564 * Return 0 if permission is granted.
565 * @task_getsid:
566 * Check permission before getting the session identifier of the process
567 * @p.
568 * @p contains the task_struct for the process.
569 * Return 0 if permission is granted.
570 * @task_setgroups:
571 * Check permission before setting the supplementary group set of the
572 * current process.
573 * @group_info contains the new group information.
574 * Return 0 if permission is granted.
575 * @task_setnice:
576 * Check permission before setting the nice value of @p to @nice.
577 * @p contains the task_struct of process.
578 * @nice contains the new nice value.
579 * Return 0 if permission is granted.
580 * @task_setrlimit:
581 * Check permission before setting the resource limits of the current
582 * process for @resource to @new_rlim. The old resource limit values can
583 * be examined by dereferencing (current->signal->rlim + resource).
584 * @resource contains the resource whose limit is being set.
585 * @new_rlim contains the new limits for @resource.
586 * Return 0 if permission is granted.
587 * @task_setscheduler:
588 * Check permission before setting scheduling policy and/or parameters of
589 * process @p based on @policy and @lp.
590 * @p contains the task_struct for process.
591 * @policy contains the scheduling policy.
592 * @lp contains the scheduling parameters.
593 * Return 0 if permission is granted.
594 * @task_getscheduler:
595 * Check permission before obtaining scheduling information for process
596 * @p.
597 * @p contains the task_struct for process.
598 * Return 0 if permission is granted.
599 * @task_kill:
600 * Check permission before sending signal @sig to @p. @info can be NULL,
601 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
602 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
603 * from the kernel and should typically be permitted.
604 * SIGIO signals are handled separately by the send_sigiotask hook in
605 * file_security_ops.
606 * @p contains the task_struct for process.
607 * @info contains the signal information.
608 * @sig contains the signal value.
609 * Return 0 if permission is granted.
610 * @task_wait:
611 * Check permission before allowing a process to reap a child process @p
612 * and collect its status information.
613 * @p contains the task_struct for process.
614 * Return 0 if permission is granted.
615 * @task_prctl:
616 * Check permission before performing a process control operation on the
617 * current process.
618 * @option contains the operation.
619 * @arg2 contains a argument.
620 * @arg3 contains a argument.
621 * @arg4 contains a argument.
622 * @arg5 contains a argument.
623 * Return 0 if permission is granted.
624 * @task_reparent_to_init:
625 * Set the security attributes in @p->security for a kernel thread that
626 * is being reparented to the init task.
627 * @p contains the task_struct for the kernel thread.
628 * @task_to_inode:
629 * Set the security attributes for an inode based on an associated task's
630 * security attributes, e.g. for /proc/pid inodes.
631 * @p contains the task_struct for the task.
632 * @inode contains the inode structure for the inode.
633 *
634 * Security hooks for Netlink messaging.
635 *
636 * @netlink_send:
637 * Save security information for a netlink message so that permission
638 * checking can be performed when the message is processed. The security
639 * information can be saved using the eff_cap field of the
640 * netlink_skb_parms structure. Also may be used to provide fine
641 * grained control over message transmission.
642 * @sk associated sock of task sending the message.,
643 * @skb contains the sk_buff structure for the netlink message.
644 * Return 0 if the information was successfully saved and message
645 * is allowed to be transmitted.
646 * @netlink_recv:
647 * Check permission before processing the received netlink message in
648 * @skb.
649 * @skb contains the sk_buff structure for the netlink message.
650 * Return 0 if permission is granted.
651 *
652 * Security hooks for Unix domain networking.
653 *
654 * @unix_stream_connect:
655 * Check permissions before establishing a Unix domain stream connection
656 * between @sock and @other.
657 * @sock contains the socket structure.
658 * @other contains the peer socket structure.
659 * Return 0 if permission is granted.
660 * @unix_may_send:
661 * Check permissions before connecting or sending datagrams from @sock to
662 * @other.
663 * @sock contains the socket structure.
664 * @sock contains the peer socket structure.
665 * Return 0 if permission is granted.
666 *
667 * The @unix_stream_connect and @unix_may_send hooks were necessary because
668 * Linux provides an alternative to the conventional file name space for Unix
669 * domain sockets. Whereas binding and connecting to sockets in the file name
670 * space is mediated by the typical file permissions (and caught by the mknod
671 * and permission hooks in inode_security_ops), binding and connecting to
672 * sockets in the abstract name space is completely unmediated. Sufficient
673 * control of Unix domain sockets in the abstract name space isn't possible
674 * using only the socket layer hooks, since we need to know the actual target
675 * socket, which is not looked up until we are inside the af_unix code.
676 *
677 * Security hooks for socket operations.
678 *
679 * @socket_create:
680 * Check permissions prior to creating a new socket.
681 * @family contains the requested protocol family.
682 * @type contains the requested communications type.
683 * @protocol contains the requested protocol.
684 * @kern set to 1 if a kernel socket.
685 * Return 0 if permission is granted.
686 * @socket_post_create:
687 * This hook allows a module to update or allocate a per-socket security
688 * structure. Note that the security field was not added directly to the
689 * socket structure, but rather, the socket security information is stored
690 * in the associated inode. Typically, the inode alloc_security hook will
691 * allocate and and attach security information to
692 * sock->inode->i_security. This hook may be used to update the
693 * sock->inode->i_security field with additional information that wasn't
694 * available when the inode was allocated.
695 * @sock contains the newly created socket structure.
696 * @family contains the requested protocol family.
697 * @type contains the requested communications type.
698 * @protocol contains the requested protocol.
699 * @kern set to 1 if a kernel socket.
700 * @socket_bind:
701 * Check permission before socket protocol layer bind operation is
702 * performed and the socket @sock is bound to the address specified in the
703 * @address parameter.
704 * @sock contains the socket structure.
705 * @address contains the address to bind to.
706 * @addrlen contains the length of address.
707 * Return 0 if permission is granted.
708 * @socket_connect:
709 * Check permission before socket protocol layer connect operation
710 * attempts to connect socket @sock to a remote address, @address.
711 * @sock contains the socket structure.
712 * @address contains the address of remote endpoint.
713 * @addrlen contains the length of address.
714 * Return 0 if permission is granted.
715 * @socket_listen:
716 * Check permission before socket protocol layer listen operation.
717 * @sock contains the socket structure.
718 * @backlog contains the maximum length for the pending connection queue.
719 * Return 0 if permission is granted.
720 * @socket_accept:
721 * Check permission before accepting a new connection. Note that the new
722 * socket, @newsock, has been created and some information copied to it,
723 * but the accept operation has not actually been performed.
724 * @sock contains the listening socket structure.
725 * @newsock contains the newly created server socket for connection.
726 * Return 0 if permission is granted.
727 * @socket_post_accept:
728 * This hook allows a security module to copy security
729 * information into the newly created socket's inode.
730 * @sock contains the listening socket structure.
731 * @newsock contains the newly created server socket for connection.
732 * @socket_sendmsg:
733 * Check permission before transmitting a message to another socket.
734 * @sock contains the socket structure.
735 * @msg contains the message to be transmitted.
736 * @size contains the size of message.
737 * Return 0 if permission is granted.
738 * @socket_recvmsg:
739 * Check permission before receiving a message from a socket.
740 * @sock contains the socket structure.
741 * @msg contains the message structure.
742 * @size contains the size of message structure.
743 * @flags contains the operational flags.
744 * Return 0 if permission is granted.
745 * @socket_getsockname:
746 * Check permission before the local address (name) of the socket object
747 * @sock is retrieved.
748 * @sock contains the socket structure.
749 * Return 0 if permission is granted.
750 * @socket_getpeername:
751 * Check permission before the remote address (name) of a socket object
752 * @sock is retrieved.
753 * @sock contains the socket structure.
754 * Return 0 if permission is granted.
755 * @socket_getsockopt:
756 * Check permissions before retrieving the options associated with socket
757 * @sock.
758 * @sock contains the socket structure.
759 * @level contains the protocol level to retrieve option from.
760 * @optname contains the name of option to retrieve.
761 * Return 0 if permission is granted.
762 * @socket_setsockopt:
763 * Check permissions before setting the options associated with socket
764 * @sock.
765 * @sock contains the socket structure.
766 * @level contains the protocol level to set options for.
767 * @optname contains the name of the option to set.
768 * Return 0 if permission is granted.
769 * @socket_shutdown:
770 * Checks permission before all or part of a connection on the socket
771 * @sock is shut down.
772 * @sock contains the socket structure.
773 * @how contains the flag indicating how future sends and receives are handled.
774 * Return 0 if permission is granted.
775 * @socket_sock_rcv_skb:
776 * Check permissions on incoming network packets. This hook is distinct
777 * from Netfilter's IP input hooks since it is the first time that the
778 * incoming sk_buff @skb has been associated with a particular socket, @sk.
779 * @sk contains the sock (not socket) associated with the incoming sk_buff.
780 * @skb contains the incoming network data.
781 * @socket_getpeersec:
782 * This hook allows the security module to provide peer socket security
783 * state to userspace via getsockopt SO_GETPEERSEC.
784 * @sock is the local socket.
785 * @optval userspace memory where the security state is to be copied.
786 * @optlen userspace int where the module should copy the actual length
787 * of the security state.
788 * @len as input is the maximum length to copy to userspace provided
789 * by the caller.
790 * Return 0 if all is well, otherwise, typical getsockopt return
791 * values.
792 * @sk_alloc_security:
793 * Allocate and attach a security structure to the sk->sk_security field,
794 * which is used to copy security attributes between local stream sockets.
795 * @sk_free_security:
796 * Deallocate security structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800797 * @sk_getsid:
798 * Retrieve the LSM-specific sid for the sock to enable caching of network
799 * authorizations.
800 *
801 * Security hooks for XFRM operations.
802 *
803 * @xfrm_policy_alloc_security:
804 * @xp contains the xfrm_policy being added to Security Policy Database
805 * used by the XFRM system.
806 * @sec_ctx contains the security context information being provided by
807 * the user-level policy update program (e.g., setkey).
808 * Allocate a security structure to the xp->selector.security field.
809 * The security field is initialized to NULL when the xfrm_policy is
810 * allocated.
811 * Return 0 if operation was successful (memory to allocate, legal context)
812 * @xfrm_policy_clone_security:
813 * @old contains an existing xfrm_policy in the SPD.
814 * @new contains a new xfrm_policy being cloned from old.
815 * Allocate a security structure to the new->selector.security field
816 * that contains the information from the old->selector.security field.
817 * Return 0 if operation was successful (memory to allocate).
818 * @xfrm_policy_free_security:
819 * @xp contains the xfrm_policy
820 * Deallocate xp->selector.security.
821 * @xfrm_state_alloc_security:
822 * @x contains the xfrm_state being added to the Security Association
823 * Database by the XFRM system.
824 * @sec_ctx contains the security context information being provided by
825 * the user-level SA generation program (e.g., setkey or racoon).
826 * Allocate a security structure to the x->sel.security field. The
827 * security field is initialized to NULL when the xfrm_state is
828 * allocated.
829 * Return 0 if operation was successful (memory to allocate, legal context).
830 * @xfrm_state_free_security:
831 * @x contains the xfrm_state.
832 * Deallocate x>sel.security.
833 * @xfrm_policy_lookup:
834 * @xp contains the xfrm_policy for which the access control is being
835 * checked.
836 * @sk_sid contains the sock security label that is used to authorize
837 * access to the policy xp.
838 * @dir contains the direction of the flow (input or output).
839 * Check permission when a sock selects a xfrm_policy for processing
840 * XFRMs on a packet. The hook is called when selecting either a
841 * per-socket policy or a generic xfrm policy.
842 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843 *
David Howells29db9192005-10-30 15:02:44 -0800844 * Security hooks affecting all Key Management operations
845 *
846 * @key_alloc:
847 * Permit allocation of a key and assign security data. Note that key does
848 * not have a serial number assigned at this point.
849 * @key points to the key.
850 * Return 0 if permission is granted, -ve error otherwise.
851 * @key_free:
852 * Notification of destruction; free security data.
853 * @key points to the key.
854 * No return value.
855 * @key_permission:
856 * See whether a specific operational right is granted to a process on a
857 * key.
858 * @key_ref refers to the key (key pointer + possession attribute bit).
859 * @context points to the process to provide the context against which to
860 * evaluate the security data on the key.
861 * @perm describes the combination of permissions required of this key.
862 * Return 1 if permission granted, 0 if permission denied and -ve it the
863 * normal permissions model should be effected.
864 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865 * Security hooks affecting all System V IPC operations.
866 *
867 * @ipc_permission:
868 * Check permissions for access to IPC
869 * @ipcp contains the kernel IPC permission structure
870 * @flag contains the desired (requested) permission set
871 * Return 0 if permission is granted.
Dustin Kirkland8c8570f2005-11-03 17:15:16 +0000872 * @ipc_getsecurity:
873 * Copy the security label associated with the ipc object into
874 * @buffer. @buffer may be NULL to request the size of the buffer
875 * required. @size indicates the size of @buffer in bytes. Return
876 * number of bytes used/required on success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877 *
878 * Security hooks for individual messages held in System V IPC message queues
879 * @msg_msg_alloc_security:
880 * Allocate and attach a security structure to the msg->security field.
881 * The security field is initialized to NULL when the structure is first
882 * created.
883 * @msg contains the message structure to be modified.
884 * Return 0 if operation was successful and permission is granted.
885 * @msg_msg_free_security:
886 * Deallocate the security structure for this message.
887 * @msg contains the message structure to be modified.
888 *
889 * Security hooks for System V IPC Message Queues
890 *
891 * @msg_queue_alloc_security:
892 * Allocate and attach a security structure to the
893 * msq->q_perm.security field. The security field is initialized to
894 * NULL when the structure is first created.
895 * @msq contains the message queue structure to be modified.
896 * Return 0 if operation was successful and permission is granted.
897 * @msg_queue_free_security:
898 * Deallocate security structure for this message queue.
899 * @msq contains the message queue structure to be modified.
900 * @msg_queue_associate:
901 * Check permission when a message queue is requested through the
902 * msgget system call. This hook is only called when returning the
903 * message queue identifier for an existing message queue, not when a
904 * new message queue is created.
905 * @msq contains the message queue to act upon.
906 * @msqflg contains the operation control flags.
907 * Return 0 if permission is granted.
908 * @msg_queue_msgctl:
909 * Check permission when a message control operation specified by @cmd
910 * is to be performed on the message queue @msq.
911 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
912 * @msq contains the message queue to act upon. May be NULL.
913 * @cmd contains the operation to be performed.
914 * Return 0 if permission is granted.
915 * @msg_queue_msgsnd:
916 * Check permission before a message, @msg, is enqueued on the message
917 * queue, @msq.
918 * @msq contains the message queue to send message to.
919 * @msg contains the message to be enqueued.
920 * @msqflg contains operational flags.
921 * Return 0 if permission is granted.
922 * @msg_queue_msgrcv:
923 * Check permission before a message, @msg, is removed from the message
924 * queue, @msq. The @target task structure contains a pointer to the
925 * process that will be receiving the message (not equal to the current
926 * process when inline receives are being performed).
927 * @msq contains the message queue to retrieve message from.
928 * @msg contains the message destination.
929 * @target contains the task structure for recipient process.
930 * @type contains the type of message requested.
931 * @mode contains the operational flags.
932 * Return 0 if permission is granted.
933 *
934 * Security hooks for System V Shared Memory Segments
935 *
936 * @shm_alloc_security:
937 * Allocate and attach a security structure to the shp->shm_perm.security
938 * field. The security field is initialized to NULL when the structure is
939 * first created.
940 * @shp contains the shared memory structure to be modified.
941 * Return 0 if operation was successful and permission is granted.
942 * @shm_free_security:
943 * Deallocate the security struct for this memory segment.
944 * @shp contains the shared memory structure to be modified.
945 * @shm_associate:
946 * Check permission when a shared memory region is requested through the
947 * shmget system call. This hook is only called when returning the shared
948 * memory region identifier for an existing region, not when a new shared
949 * memory region is created.
950 * @shp contains the shared memory structure to be modified.
951 * @shmflg contains the operation control flags.
952 * Return 0 if permission is granted.
953 * @shm_shmctl:
954 * Check permission when a shared memory control operation specified by
955 * @cmd is to be performed on the shared memory region @shp.
956 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
957 * @shp contains shared memory structure to be modified.
958 * @cmd contains the operation to be performed.
959 * Return 0 if permission is granted.
960 * @shm_shmat:
961 * Check permissions prior to allowing the shmat system call to attach the
962 * shared memory segment @shp to the data segment of the calling process.
963 * The attaching address is specified by @shmaddr.
964 * @shp contains the shared memory structure to be modified.
965 * @shmaddr contains the address to attach memory region to.
966 * @shmflg contains the operational flags.
967 * Return 0 if permission is granted.
968 *
969 * Security hooks for System V Semaphores
970 *
971 * @sem_alloc_security:
972 * Allocate and attach a security structure to the sma->sem_perm.security
973 * field. The security field is initialized to NULL when the structure is
974 * first created.
975 * @sma contains the semaphore structure
976 * Return 0 if operation was successful and permission is granted.
977 * @sem_free_security:
978 * deallocate security struct for this semaphore
979 * @sma contains the semaphore structure.
980 * @sem_associate:
981 * Check permission when a semaphore is requested through the semget
982 * system call. This hook is only called when returning the semaphore
983 * identifier for an existing semaphore, not when a new one must be
984 * created.
985 * @sma contains the semaphore structure.
986 * @semflg contains the operation control flags.
987 * Return 0 if permission is granted.
988 * @sem_semctl:
989 * Check permission when a semaphore operation specified by @cmd is to be
990 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
991 * IPC_INFO or SEM_INFO.
992 * @sma contains the semaphore structure. May be NULL.
993 * @cmd contains the operation to be performed.
994 * Return 0 if permission is granted.
995 * @sem_semop
996 * Check permissions before performing operations on members of the
997 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
998 * may be modified.
999 * @sma contains the semaphore structure.
1000 * @sops contains the operations to perform.
1001 * @nsops contains the number of operations to perform.
1002 * @alter contains the flag indicating whether changes are to be made.
1003 * Return 0 if permission is granted.
1004 *
1005 * @ptrace:
1006 * Check permission before allowing the @parent process to trace the
1007 * @child process.
1008 * Security modules may also want to perform a process tracing check
1009 * during an execve in the set_security or apply_creds hooks of
1010 * binprm_security_ops if the process is being traced and its security
1011 * attributes would be changed by the execve.
1012 * @parent contains the task_struct structure for parent process.
1013 * @child contains the task_struct structure for child process.
1014 * Return 0 if permission is granted.
1015 * @capget:
1016 * Get the @effective, @inheritable, and @permitted capability sets for
1017 * the @target process. The hook may also perform permission checking to
1018 * determine if the current process is allowed to see the capability sets
1019 * of the @target process.
1020 * @target contains the task_struct structure for target process.
1021 * @effective contains the effective capability set.
1022 * @inheritable contains the inheritable capability set.
1023 * @permitted contains the permitted capability set.
1024 * Return 0 if the capability sets were successfully obtained.
1025 * @capset_check:
1026 * Check permission before setting the @effective, @inheritable, and
1027 * @permitted capability sets for the @target process.
1028 * Caveat: @target is also set to current if a set of processes is
1029 * specified (i.e. all processes other than current and init or a
1030 * particular process group). Hence, the capset_set hook may need to
1031 * revalidate permission to the actual target process.
1032 * @target contains the task_struct structure for target process.
1033 * @effective contains the effective capability set.
1034 * @inheritable contains the inheritable capability set.
1035 * @permitted contains the permitted capability set.
1036 * Return 0 if permission is granted.
1037 * @capset_set:
1038 * Set the @effective, @inheritable, and @permitted capability sets for
1039 * the @target process. Since capset_check cannot always check permission
1040 * to the real @target process, this hook may also perform permission
1041 * checking to determine if the current process is allowed to set the
1042 * capability sets of the @target process. However, this hook has no way
1043 * of returning an error due to the structure of the sys_capset code.
1044 * @target contains the task_struct structure for target process.
1045 * @effective contains the effective capability set.
1046 * @inheritable contains the inheritable capability set.
1047 * @permitted contains the permitted capability set.
Chris Wright12b59892006-03-25 03:07:41 -08001048 * @capable:
1049 * Check whether the @tsk process has the @cap capability.
1050 * @tsk contains the task_struct for the process.
1051 * @cap contains the capability <include/linux/capability.h>.
1052 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 * @acct:
1054 * Check permission before enabling or disabling process accounting. If
1055 * accounting is being enabled, then @file refers to the open file used to
1056 * store accounting records. If accounting is being disabled, then @file
1057 * is NULL.
1058 * @file contains the file structure for the accounting file (may be NULL).
1059 * Return 0 if permission is granted.
1060 * @sysctl:
1061 * Check permission before accessing the @table sysctl variable in the
1062 * manner specified by @op.
1063 * @table contains the ctl_table structure for the sysctl variable.
1064 * @op contains the operation (001 = search, 002 = write, 004 = read).
1065 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066 * @syslog:
1067 * Check permission before accessing the kernel message ring or changing
1068 * logging to the console.
1069 * See the syslog(2) manual page for an explanation of the @type values.
1070 * @type contains the type of action.
1071 * Return 0 if permission is granted.
1072 * @settime:
1073 * Check permission to change the system time.
1074 * struct timespec and timezone are defined in include/linux/time.h
1075 * @ts contains new time
1076 * @tz contains new timezone
1077 * Return 0 if permission is granted.
1078 * @vm_enough_memory:
1079 * Check permissions for allocating a new virtual mapping.
1080 * @pages contains the number of pages.
1081 * Return 0 if permission is granted.
1082 *
1083 * @register_security:
1084 * allow module stacking.
1085 * @name contains the name of the security module being stacked.
1086 * @ops contains a pointer to the struct security_operations of the module to stack.
1087 * @unregister_security:
1088 * remove a stacked module.
1089 * @name contains the name of the security module being unstacked.
1090 * @ops contains a pointer to the struct security_operations of the module to unstack.
1091 *
1092 * This is the main security structure.
1093 */
1094struct security_operations {
1095 int (*ptrace) (struct task_struct * parent, struct task_struct * child);
1096 int (*capget) (struct task_struct * target,
1097 kernel_cap_t * effective,
1098 kernel_cap_t * inheritable, kernel_cap_t * permitted);
1099 int (*capset_check) (struct task_struct * target,
1100 kernel_cap_t * effective,
1101 kernel_cap_t * inheritable,
1102 kernel_cap_t * permitted);
1103 void (*capset_set) (struct task_struct * target,
1104 kernel_cap_t * effective,
1105 kernel_cap_t * inheritable,
1106 kernel_cap_t * permitted);
Chris Wright12b59892006-03-25 03:07:41 -08001107 int (*capable) (struct task_struct * tsk, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108 int (*acct) (struct file * file);
1109 int (*sysctl) (struct ctl_table * table, int op);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110 int (*quotactl) (int cmds, int type, int id, struct super_block * sb);
1111 int (*quota_on) (struct dentry * dentry);
1112 int (*syslog) (int type);
1113 int (*settime) (struct timespec *ts, struct timezone *tz);
1114 int (*vm_enough_memory) (long pages);
1115
1116 int (*bprm_alloc_security) (struct linux_binprm * bprm);
1117 void (*bprm_free_security) (struct linux_binprm * bprm);
1118 void (*bprm_apply_creds) (struct linux_binprm * bprm, int unsafe);
1119 void (*bprm_post_apply_creds) (struct linux_binprm * bprm);
1120 int (*bprm_set_security) (struct linux_binprm * bprm);
1121 int (*bprm_check_security) (struct linux_binprm * bprm);
1122 int (*bprm_secureexec) (struct linux_binprm * bprm);
1123
1124 int (*sb_alloc_security) (struct super_block * sb);
1125 void (*sb_free_security) (struct super_block * sb);
1126 int (*sb_copy_data)(struct file_system_type *type,
1127 void *orig, void *copy);
1128 int (*sb_kern_mount) (struct super_block *sb, void *data);
1129 int (*sb_statfs) (struct super_block * sb);
1130 int (*sb_mount) (char *dev_name, struct nameidata * nd,
1131 char *type, unsigned long flags, void *data);
1132 int (*sb_check_sb) (struct vfsmount * mnt, struct nameidata * nd);
1133 int (*sb_umount) (struct vfsmount * mnt, int flags);
1134 void (*sb_umount_close) (struct vfsmount * mnt);
1135 void (*sb_umount_busy) (struct vfsmount * mnt);
1136 void (*sb_post_remount) (struct vfsmount * mnt,
1137 unsigned long flags, void *data);
1138 void (*sb_post_mountroot) (void);
1139 void (*sb_post_addmount) (struct vfsmount * mnt,
1140 struct nameidata * mountpoint_nd);
1141 int (*sb_pivotroot) (struct nameidata * old_nd,
1142 struct nameidata * new_nd);
1143 void (*sb_post_pivotroot) (struct nameidata * old_nd,
1144 struct nameidata * new_nd);
1145
1146 int (*inode_alloc_security) (struct inode *inode);
1147 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001148 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1149 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150 int (*inode_create) (struct inode *dir,
1151 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152 int (*inode_link) (struct dentry *old_dentry,
1153 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1155 int (*inode_symlink) (struct inode *dir,
1156 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1159 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1160 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1162 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163 int (*inode_readlink) (struct dentry *dentry);
1164 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1165 int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd);
1166 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1167 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1168 void (*inode_delete) (struct inode *inode);
1169 int (*inode_setxattr) (struct dentry *dentry, char *name, void *value,
1170 size_t size, int flags);
1171 void (*inode_post_setxattr) (struct dentry *dentry, char *name, void *value,
1172 size_t size, int flags);
1173 int (*inode_getxattr) (struct dentry *dentry, char *name);
1174 int (*inode_listxattr) (struct dentry *dentry);
1175 int (*inode_removexattr) (struct dentry *dentry, char *name);
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00001176 const char *(*inode_xattr_getsuffix) (void);
1177 int (*inode_getsecurity)(const struct inode *inode, const char *name, void *buffer, size_t size, int err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178 int (*inode_setsecurity)(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1179 int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size);
1180
1181 int (*file_permission) (struct file * file, int mask);
1182 int (*file_alloc_security) (struct file * file);
1183 void (*file_free_security) (struct file * file);
1184 int (*file_ioctl) (struct file * file, unsigned int cmd,
1185 unsigned long arg);
1186 int (*file_mmap) (struct file * file,
1187 unsigned long reqprot,
1188 unsigned long prot, unsigned long flags);
1189 int (*file_mprotect) (struct vm_area_struct * vma,
1190 unsigned long reqprot,
1191 unsigned long prot);
1192 int (*file_lock) (struct file * file, unsigned int cmd);
1193 int (*file_fcntl) (struct file * file, unsigned int cmd,
1194 unsigned long arg);
1195 int (*file_set_fowner) (struct file * file);
1196 int (*file_send_sigiotask) (struct task_struct * tsk,
1197 struct fown_struct * fown, int sig);
1198 int (*file_receive) (struct file * file);
1199
1200 int (*task_create) (unsigned long clone_flags);
1201 int (*task_alloc_security) (struct task_struct * p);
1202 void (*task_free_security) (struct task_struct * p);
1203 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1204 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1205 uid_t old_euid, uid_t old_suid, int flags);
1206 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1207 int (*task_setpgid) (struct task_struct * p, pid_t pgid);
1208 int (*task_getpgid) (struct task_struct * p);
1209 int (*task_getsid) (struct task_struct * p);
1210 int (*task_setgroups) (struct group_info *group_info);
1211 int (*task_setnice) (struct task_struct * p, int nice);
1212 int (*task_setrlimit) (unsigned int resource, struct rlimit * new_rlim);
1213 int (*task_setscheduler) (struct task_struct * p, int policy,
1214 struct sched_param * lp);
1215 int (*task_getscheduler) (struct task_struct * p);
1216 int (*task_kill) (struct task_struct * p,
1217 struct siginfo * info, int sig);
1218 int (*task_wait) (struct task_struct * p);
1219 int (*task_prctl) (int option, unsigned long arg2,
1220 unsigned long arg3, unsigned long arg4,
1221 unsigned long arg5);
1222 void (*task_reparent_to_init) (struct task_struct * p);
1223 void (*task_to_inode)(struct task_struct *p, struct inode *inode);
1224
1225 int (*ipc_permission) (struct kern_ipc_perm * ipcp, short flag);
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00001226 int (*ipc_getsecurity)(struct kern_ipc_perm *ipcp, void *buffer, size_t size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227
1228 int (*msg_msg_alloc_security) (struct msg_msg * msg);
1229 void (*msg_msg_free_security) (struct msg_msg * msg);
1230
1231 int (*msg_queue_alloc_security) (struct msg_queue * msq);
1232 void (*msg_queue_free_security) (struct msg_queue * msq);
1233 int (*msg_queue_associate) (struct msg_queue * msq, int msqflg);
1234 int (*msg_queue_msgctl) (struct msg_queue * msq, int cmd);
1235 int (*msg_queue_msgsnd) (struct msg_queue * msq,
1236 struct msg_msg * msg, int msqflg);
1237 int (*msg_queue_msgrcv) (struct msg_queue * msq,
1238 struct msg_msg * msg,
1239 struct task_struct * target,
1240 long type, int mode);
1241
1242 int (*shm_alloc_security) (struct shmid_kernel * shp);
1243 void (*shm_free_security) (struct shmid_kernel * shp);
1244 int (*shm_associate) (struct shmid_kernel * shp, int shmflg);
1245 int (*shm_shmctl) (struct shmid_kernel * shp, int cmd);
1246 int (*shm_shmat) (struct shmid_kernel * shp,
1247 char __user *shmaddr, int shmflg);
1248
1249 int (*sem_alloc_security) (struct sem_array * sma);
1250 void (*sem_free_security) (struct sem_array * sma);
1251 int (*sem_associate) (struct sem_array * sma, int semflg);
1252 int (*sem_semctl) (struct sem_array * sma, int cmd);
1253 int (*sem_semop) (struct sem_array * sma,
1254 struct sembuf * sops, unsigned nsops, int alter);
1255
1256 int (*netlink_send) (struct sock * sk, struct sk_buff * skb);
1257 int (*netlink_recv) (struct sk_buff * skb);
1258
1259 /* allow module stacking */
1260 int (*register_security) (const char *name,
1261 struct security_operations *ops);
1262 int (*unregister_security) (const char *name,
1263 struct security_operations *ops);
1264
1265 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1266
1267 int (*getprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1268 int (*setprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1269
1270#ifdef CONFIG_SECURITY_NETWORK
1271 int (*unix_stream_connect) (struct socket * sock,
1272 struct socket * other, struct sock * newsk);
1273 int (*unix_may_send) (struct socket * sock, struct socket * other);
1274
1275 int (*socket_create) (int family, int type, int protocol, int kern);
1276 void (*socket_post_create) (struct socket * sock, int family,
1277 int type, int protocol, int kern);
1278 int (*socket_bind) (struct socket * sock,
1279 struct sockaddr * address, int addrlen);
1280 int (*socket_connect) (struct socket * sock,
1281 struct sockaddr * address, int addrlen);
1282 int (*socket_listen) (struct socket * sock, int backlog);
1283 int (*socket_accept) (struct socket * sock, struct socket * newsock);
1284 void (*socket_post_accept) (struct socket * sock,
1285 struct socket * newsock);
1286 int (*socket_sendmsg) (struct socket * sock,
1287 struct msghdr * msg, int size);
1288 int (*socket_recvmsg) (struct socket * sock,
1289 struct msghdr * msg, int size, int flags);
1290 int (*socket_getsockname) (struct socket * sock);
1291 int (*socket_getpeername) (struct socket * sock);
1292 int (*socket_getsockopt) (struct socket * sock, int level, int optname);
1293 int (*socket_setsockopt) (struct socket * sock, int level, int optname);
1294 int (*socket_shutdown) (struct socket * sock, int how);
1295 int (*socket_sock_rcv_skb) (struct sock * sk, struct sk_buff * skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001296 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1297 int (*socket_getpeersec_dgram) (struct sk_buff *skb, char **secdata, u32 *seclen);
Al Viro7d877f32005-10-21 03:20:43 -04001298 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299 void (*sk_free_security) (struct sock *sk);
Trent Jaegerdf718372005-12-13 23:12:27 -08001300 unsigned int (*sk_getsid) (struct sock *sk, struct flowi *fl, u8 dir);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001302
Trent Jaegerdf718372005-12-13 23:12:27 -08001303#ifdef CONFIG_SECURITY_NETWORK_XFRM
1304 int (*xfrm_policy_alloc_security) (struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx);
1305 int (*xfrm_policy_clone_security) (struct xfrm_policy *old, struct xfrm_policy *new);
1306 void (*xfrm_policy_free_security) (struct xfrm_policy *xp);
1307 int (*xfrm_state_alloc_security) (struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1308 void (*xfrm_state_free_security) (struct xfrm_state *x);
1309 int (*xfrm_policy_lookup)(struct xfrm_policy *xp, u32 sk_sid, u8 dir);
1310#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1311
David Howells29db9192005-10-30 15:02:44 -08001312 /* key management security hooks */
1313#ifdef CONFIG_KEYS
1314 int (*key_alloc)(struct key *key);
1315 void (*key_free)(struct key *key);
1316 int (*key_permission)(key_ref_t key_ref,
1317 struct task_struct *context,
1318 key_perm_t perm);
1319
1320#endif /* CONFIG_KEYS */
1321
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322};
1323
1324/* global variables */
1325extern struct security_operations *security_ops;
1326
1327/* inline stuff */
1328static inline int security_ptrace (struct task_struct * parent, struct task_struct * child)
1329{
1330 return security_ops->ptrace (parent, child);
1331}
1332
1333static inline int security_capget (struct task_struct *target,
1334 kernel_cap_t *effective,
1335 kernel_cap_t *inheritable,
1336 kernel_cap_t *permitted)
1337{
1338 return security_ops->capget (target, effective, inheritable, permitted);
1339}
1340
1341static inline int security_capset_check (struct task_struct *target,
1342 kernel_cap_t *effective,
1343 kernel_cap_t *inheritable,
1344 kernel_cap_t *permitted)
1345{
1346 return security_ops->capset_check (target, effective, inheritable, permitted);
1347}
1348
1349static inline void security_capset_set (struct task_struct *target,
1350 kernel_cap_t *effective,
1351 kernel_cap_t *inheritable,
1352 kernel_cap_t *permitted)
1353{
1354 security_ops->capset_set (target, effective, inheritable, permitted);
1355}
1356
Chris Wright12b59892006-03-25 03:07:41 -08001357static inline int security_capable(struct task_struct *tsk, int cap)
1358{
1359 return security_ops->capable(tsk, cap);
1360}
1361
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362static inline int security_acct (struct file *file)
1363{
1364 return security_ops->acct (file);
1365}
1366
1367static inline int security_sysctl(struct ctl_table *table, int op)
1368{
1369 return security_ops->sysctl(table, op);
1370}
1371
1372static inline int security_quotactl (int cmds, int type, int id,
1373 struct super_block *sb)
1374{
1375 return security_ops->quotactl (cmds, type, id, sb);
1376}
1377
1378static inline int security_quota_on (struct dentry * dentry)
1379{
1380 return security_ops->quota_on (dentry);
1381}
1382
1383static inline int security_syslog(int type)
1384{
1385 return security_ops->syslog(type);
1386}
1387
1388static inline int security_settime(struct timespec *ts, struct timezone *tz)
1389{
1390 return security_ops->settime(ts, tz);
1391}
1392
1393
1394static inline int security_vm_enough_memory(long pages)
1395{
1396 return security_ops->vm_enough_memory(pages);
1397}
1398
1399static inline int security_bprm_alloc (struct linux_binprm *bprm)
1400{
1401 return security_ops->bprm_alloc_security (bprm);
1402}
1403static inline void security_bprm_free (struct linux_binprm *bprm)
1404{
1405 security_ops->bprm_free_security (bprm);
1406}
1407static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
1408{
1409 security_ops->bprm_apply_creds (bprm, unsafe);
1410}
1411static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
1412{
1413 security_ops->bprm_post_apply_creds (bprm);
1414}
1415static inline int security_bprm_set (struct linux_binprm *bprm)
1416{
1417 return security_ops->bprm_set_security (bprm);
1418}
1419
1420static inline int security_bprm_check (struct linux_binprm *bprm)
1421{
1422 return security_ops->bprm_check_security (bprm);
1423}
1424
1425static inline int security_bprm_secureexec (struct linux_binprm *bprm)
1426{
1427 return security_ops->bprm_secureexec (bprm);
1428}
1429
1430static inline int security_sb_alloc (struct super_block *sb)
1431{
1432 return security_ops->sb_alloc_security (sb);
1433}
1434
1435static inline void security_sb_free (struct super_block *sb)
1436{
1437 security_ops->sb_free_security (sb);
1438}
1439
1440static inline int security_sb_copy_data (struct file_system_type *type,
1441 void *orig, void *copy)
1442{
1443 return security_ops->sb_copy_data (type, orig, copy);
1444}
1445
1446static inline int security_sb_kern_mount (struct super_block *sb, void *data)
1447{
1448 return security_ops->sb_kern_mount (sb, data);
1449}
1450
1451static inline int security_sb_statfs (struct super_block *sb)
1452{
1453 return security_ops->sb_statfs (sb);
1454}
1455
1456static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
1457 char *type, unsigned long flags,
1458 void *data)
1459{
1460 return security_ops->sb_mount (dev_name, nd, type, flags, data);
1461}
1462
1463static inline int security_sb_check_sb (struct vfsmount *mnt,
1464 struct nameidata *nd)
1465{
1466 return security_ops->sb_check_sb (mnt, nd);
1467}
1468
1469static inline int security_sb_umount (struct vfsmount *mnt, int flags)
1470{
1471 return security_ops->sb_umount (mnt, flags);
1472}
1473
1474static inline void security_sb_umount_close (struct vfsmount *mnt)
1475{
1476 security_ops->sb_umount_close (mnt);
1477}
1478
1479static inline void security_sb_umount_busy (struct vfsmount *mnt)
1480{
1481 security_ops->sb_umount_busy (mnt);
1482}
1483
1484static inline void security_sb_post_remount (struct vfsmount *mnt,
1485 unsigned long flags, void *data)
1486{
1487 security_ops->sb_post_remount (mnt, flags, data);
1488}
1489
1490static inline void security_sb_post_mountroot (void)
1491{
1492 security_ops->sb_post_mountroot ();
1493}
1494
1495static inline void security_sb_post_addmount (struct vfsmount *mnt,
1496 struct nameidata *mountpoint_nd)
1497{
1498 security_ops->sb_post_addmount (mnt, mountpoint_nd);
1499}
1500
1501static inline int security_sb_pivotroot (struct nameidata *old_nd,
1502 struct nameidata *new_nd)
1503{
1504 return security_ops->sb_pivotroot (old_nd, new_nd);
1505}
1506
1507static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
1508 struct nameidata *new_nd)
1509{
1510 security_ops->sb_post_pivotroot (old_nd, new_nd);
1511}
1512
1513static inline int security_inode_alloc (struct inode *inode)
1514{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515 return security_ops->inode_alloc_security (inode);
1516}
1517
1518static inline void security_inode_free (struct inode *inode)
1519{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520 security_ops->inode_free_security (inode);
1521}
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001522
1523static inline int security_inode_init_security (struct inode *inode,
1524 struct inode *dir,
1525 char **name,
1526 void **value,
1527 size_t *len)
1528{
1529 if (unlikely (IS_PRIVATE (inode)))
1530 return -EOPNOTSUPP;
1531 return security_ops->inode_init_security (inode, dir, name, value, len);
1532}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533
1534static inline int security_inode_create (struct inode *dir,
1535 struct dentry *dentry,
1536 int mode)
1537{
1538 if (unlikely (IS_PRIVATE (dir)))
1539 return 0;
1540 return security_ops->inode_create (dir, dentry, mode);
1541}
1542
Linus Torvalds1da177e2005-04-16 15:20:36 -07001543static inline int security_inode_link (struct dentry *old_dentry,
1544 struct inode *dir,
1545 struct dentry *new_dentry)
1546{
1547 if (unlikely (IS_PRIVATE (old_dentry->d_inode)))
1548 return 0;
1549 return security_ops->inode_link (old_dentry, dir, new_dentry);
1550}
1551
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552static inline int security_inode_unlink (struct inode *dir,
1553 struct dentry *dentry)
1554{
1555 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1556 return 0;
1557 return security_ops->inode_unlink (dir, dentry);
1558}
1559
1560static inline int security_inode_symlink (struct inode *dir,
1561 struct dentry *dentry,
1562 const char *old_name)
1563{
1564 if (unlikely (IS_PRIVATE (dir)))
1565 return 0;
1566 return security_ops->inode_symlink (dir, dentry, old_name);
1567}
1568
Linus Torvalds1da177e2005-04-16 15:20:36 -07001569static inline int security_inode_mkdir (struct inode *dir,
1570 struct dentry *dentry,
1571 int mode)
1572{
1573 if (unlikely (IS_PRIVATE (dir)))
1574 return 0;
1575 return security_ops->inode_mkdir (dir, dentry, mode);
1576}
1577
Linus Torvalds1da177e2005-04-16 15:20:36 -07001578static inline int security_inode_rmdir (struct inode *dir,
1579 struct dentry *dentry)
1580{
1581 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1582 return 0;
1583 return security_ops->inode_rmdir (dir, dentry);
1584}
1585
1586static inline int security_inode_mknod (struct inode *dir,
1587 struct dentry *dentry,
1588 int mode, dev_t dev)
1589{
1590 if (unlikely (IS_PRIVATE (dir)))
1591 return 0;
1592 return security_ops->inode_mknod (dir, dentry, mode, dev);
1593}
1594
Linus Torvalds1da177e2005-04-16 15:20:36 -07001595static inline int security_inode_rename (struct inode *old_dir,
1596 struct dentry *old_dentry,
1597 struct inode *new_dir,
1598 struct dentry *new_dentry)
1599{
1600 if (unlikely (IS_PRIVATE (old_dentry->d_inode) ||
1601 (new_dentry->d_inode && IS_PRIVATE (new_dentry->d_inode))))
1602 return 0;
1603 return security_ops->inode_rename (old_dir, old_dentry,
1604 new_dir, new_dentry);
1605}
1606
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607static inline int security_inode_readlink (struct dentry *dentry)
1608{
1609 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1610 return 0;
1611 return security_ops->inode_readlink (dentry);
1612}
1613
1614static inline int security_inode_follow_link (struct dentry *dentry,
1615 struct nameidata *nd)
1616{
1617 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1618 return 0;
1619 return security_ops->inode_follow_link (dentry, nd);
1620}
1621
1622static inline int security_inode_permission (struct inode *inode, int mask,
1623 struct nameidata *nd)
1624{
1625 if (unlikely (IS_PRIVATE (inode)))
1626 return 0;
1627 return security_ops->inode_permission (inode, mask, nd);
1628}
1629
1630static inline int security_inode_setattr (struct dentry *dentry,
1631 struct iattr *attr)
1632{
1633 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1634 return 0;
1635 return security_ops->inode_setattr (dentry, attr);
1636}
1637
1638static inline int security_inode_getattr (struct vfsmount *mnt,
1639 struct dentry *dentry)
1640{
1641 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1642 return 0;
1643 return security_ops->inode_getattr (mnt, dentry);
1644}
1645
1646static inline void security_inode_delete (struct inode *inode)
1647{
1648 if (unlikely (IS_PRIVATE (inode)))
1649 return;
1650 security_ops->inode_delete (inode);
1651}
1652
1653static inline int security_inode_setxattr (struct dentry *dentry, char *name,
1654 void *value, size_t size, int flags)
1655{
1656 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1657 return 0;
1658 return security_ops->inode_setxattr (dentry, name, value, size, flags);
1659}
1660
1661static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
1662 void *value, size_t size, int flags)
1663{
1664 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1665 return;
1666 security_ops->inode_post_setxattr (dentry, name, value, size, flags);
1667}
1668
1669static inline int security_inode_getxattr (struct dentry *dentry, char *name)
1670{
1671 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1672 return 0;
1673 return security_ops->inode_getxattr (dentry, name);
1674}
1675
1676static inline int security_inode_listxattr (struct dentry *dentry)
1677{
1678 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1679 return 0;
1680 return security_ops->inode_listxattr (dentry);
1681}
1682
1683static inline int security_inode_removexattr (struct dentry *dentry, char *name)
1684{
1685 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1686 return 0;
1687 return security_ops->inode_removexattr (dentry, name);
1688}
1689
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00001690static inline const char *security_inode_xattr_getsuffix(void)
1691{
1692 return security_ops->inode_xattr_getsuffix();
1693}
1694
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00001695static 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 -07001696{
1697 if (unlikely (IS_PRIVATE (inode)))
1698 return 0;
James Morrisd381d8a2005-10-30 14:59:22 -08001699 return security_ops->inode_getsecurity(inode, name, buffer, size, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001700}
1701
1702static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
1703{
1704 if (unlikely (IS_PRIVATE (inode)))
1705 return 0;
1706 return security_ops->inode_setsecurity(inode, name, value, size, flags);
1707}
1708
1709static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
1710{
1711 if (unlikely (IS_PRIVATE (inode)))
1712 return 0;
1713 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
1714}
1715
1716static inline int security_file_permission (struct file *file, int mask)
1717{
1718 return security_ops->file_permission (file, mask);
1719}
1720
1721static inline int security_file_alloc (struct file *file)
1722{
1723 return security_ops->file_alloc_security (file);
1724}
1725
1726static inline void security_file_free (struct file *file)
1727{
1728 security_ops->file_free_security (file);
1729}
1730
1731static inline int security_file_ioctl (struct file *file, unsigned int cmd,
1732 unsigned long arg)
1733{
1734 return security_ops->file_ioctl (file, cmd, arg);
1735}
1736
1737static inline int security_file_mmap (struct file *file, unsigned long reqprot,
1738 unsigned long prot,
1739 unsigned long flags)
1740{
1741 return security_ops->file_mmap (file, reqprot, prot, flags);
1742}
1743
1744static inline int security_file_mprotect (struct vm_area_struct *vma,
1745 unsigned long reqprot,
1746 unsigned long prot)
1747{
1748 return security_ops->file_mprotect (vma, reqprot, prot);
1749}
1750
1751static inline int security_file_lock (struct file *file, unsigned int cmd)
1752{
1753 return security_ops->file_lock (file, cmd);
1754}
1755
1756static inline int security_file_fcntl (struct file *file, unsigned int cmd,
1757 unsigned long arg)
1758{
1759 return security_ops->file_fcntl (file, cmd, arg);
1760}
1761
1762static inline int security_file_set_fowner (struct file *file)
1763{
1764 return security_ops->file_set_fowner (file);
1765}
1766
1767static inline int security_file_send_sigiotask (struct task_struct *tsk,
1768 struct fown_struct *fown,
1769 int sig)
1770{
1771 return security_ops->file_send_sigiotask (tsk, fown, sig);
1772}
1773
1774static inline int security_file_receive (struct file *file)
1775{
1776 return security_ops->file_receive (file);
1777}
1778
1779static inline int security_task_create (unsigned long clone_flags)
1780{
1781 return security_ops->task_create (clone_flags);
1782}
1783
1784static inline int security_task_alloc (struct task_struct *p)
1785{
1786 return security_ops->task_alloc_security (p);
1787}
1788
1789static inline void security_task_free (struct task_struct *p)
1790{
1791 security_ops->task_free_security (p);
1792}
1793
1794static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
1795 int flags)
1796{
1797 return security_ops->task_setuid (id0, id1, id2, flags);
1798}
1799
1800static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
1801 uid_t old_suid, int flags)
1802{
1803 return security_ops->task_post_setuid (old_ruid, old_euid, old_suid, flags);
1804}
1805
1806static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
1807 int flags)
1808{
1809 return security_ops->task_setgid (id0, id1, id2, flags);
1810}
1811
1812static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
1813{
1814 return security_ops->task_setpgid (p, pgid);
1815}
1816
1817static inline int security_task_getpgid (struct task_struct *p)
1818{
1819 return security_ops->task_getpgid (p);
1820}
1821
1822static inline int security_task_getsid (struct task_struct *p)
1823{
1824 return security_ops->task_getsid (p);
1825}
1826
1827static inline int security_task_setgroups (struct group_info *group_info)
1828{
1829 return security_ops->task_setgroups (group_info);
1830}
1831
1832static inline int security_task_setnice (struct task_struct *p, int nice)
1833{
1834 return security_ops->task_setnice (p, nice);
1835}
1836
1837static inline int security_task_setrlimit (unsigned int resource,
1838 struct rlimit *new_rlim)
1839{
1840 return security_ops->task_setrlimit (resource, new_rlim);
1841}
1842
1843static inline int security_task_setscheduler (struct task_struct *p,
1844 int policy,
1845 struct sched_param *lp)
1846{
1847 return security_ops->task_setscheduler (p, policy, lp);
1848}
1849
1850static inline int security_task_getscheduler (struct task_struct *p)
1851{
1852 return security_ops->task_getscheduler (p);
1853}
1854
1855static inline int security_task_kill (struct task_struct *p,
1856 struct siginfo *info, int sig)
1857{
1858 return security_ops->task_kill (p, info, sig);
1859}
1860
1861static inline int security_task_wait (struct task_struct *p)
1862{
1863 return security_ops->task_wait (p);
1864}
1865
1866static inline int security_task_prctl (int option, unsigned long arg2,
1867 unsigned long arg3,
1868 unsigned long arg4,
1869 unsigned long arg5)
1870{
1871 return security_ops->task_prctl (option, arg2, arg3, arg4, arg5);
1872}
1873
1874static inline void security_task_reparent_to_init (struct task_struct *p)
1875{
1876 security_ops->task_reparent_to_init (p);
1877}
1878
1879static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1880{
1881 security_ops->task_to_inode(p, inode);
1882}
1883
1884static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
1885 short flag)
1886{
1887 return security_ops->ipc_permission (ipcp, flag);
1888}
1889
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00001890static inline int security_ipc_getsecurity(struct kern_ipc_perm *ipcp, void *buffer, size_t size)
1891{
1892 return security_ops->ipc_getsecurity(ipcp, buffer, size);
1893}
1894
Linus Torvalds1da177e2005-04-16 15:20:36 -07001895static inline int security_msg_msg_alloc (struct msg_msg * msg)
1896{
1897 return security_ops->msg_msg_alloc_security (msg);
1898}
1899
1900static inline void security_msg_msg_free (struct msg_msg * msg)
1901{
1902 security_ops->msg_msg_free_security(msg);
1903}
1904
1905static inline int security_msg_queue_alloc (struct msg_queue *msq)
1906{
1907 return security_ops->msg_queue_alloc_security (msq);
1908}
1909
1910static inline void security_msg_queue_free (struct msg_queue *msq)
1911{
1912 security_ops->msg_queue_free_security (msq);
1913}
1914
1915static inline int security_msg_queue_associate (struct msg_queue * msq,
1916 int msqflg)
1917{
1918 return security_ops->msg_queue_associate (msq, msqflg);
1919}
1920
1921static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
1922{
1923 return security_ops->msg_queue_msgctl (msq, cmd);
1924}
1925
1926static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
1927 struct msg_msg * msg, int msqflg)
1928{
1929 return security_ops->msg_queue_msgsnd (msq, msg, msqflg);
1930}
1931
1932static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
1933 struct msg_msg * msg,
1934 struct task_struct * target,
1935 long type, int mode)
1936{
1937 return security_ops->msg_queue_msgrcv (msq, msg, target, type, mode);
1938}
1939
1940static inline int security_shm_alloc (struct shmid_kernel *shp)
1941{
1942 return security_ops->shm_alloc_security (shp);
1943}
1944
1945static inline void security_shm_free (struct shmid_kernel *shp)
1946{
1947 security_ops->shm_free_security (shp);
1948}
1949
1950static inline int security_shm_associate (struct shmid_kernel * shp,
1951 int shmflg)
1952{
1953 return security_ops->shm_associate(shp, shmflg);
1954}
1955
1956static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
1957{
1958 return security_ops->shm_shmctl (shp, cmd);
1959}
1960
1961static inline int security_shm_shmat (struct shmid_kernel * shp,
1962 char __user *shmaddr, int shmflg)
1963{
1964 return security_ops->shm_shmat(shp, shmaddr, shmflg);
1965}
1966
1967static inline int security_sem_alloc (struct sem_array *sma)
1968{
1969 return security_ops->sem_alloc_security (sma);
1970}
1971
1972static inline void security_sem_free (struct sem_array *sma)
1973{
1974 security_ops->sem_free_security (sma);
1975}
1976
1977static inline int security_sem_associate (struct sem_array * sma, int semflg)
1978{
1979 return security_ops->sem_associate (sma, semflg);
1980}
1981
1982static inline int security_sem_semctl (struct sem_array * sma, int cmd)
1983{
1984 return security_ops->sem_semctl(sma, cmd);
1985}
1986
1987static inline int security_sem_semop (struct sem_array * sma,
1988 struct sembuf * sops, unsigned nsops,
1989 int alter)
1990{
1991 return security_ops->sem_semop(sma, sops, nsops, alter);
1992}
1993
1994static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
1995{
1996 if (unlikely (inode && IS_PRIVATE (inode)))
1997 return;
1998 security_ops->d_instantiate (dentry, inode);
1999}
2000
2001static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
2002{
2003 return security_ops->getprocattr(p, name, value, size);
2004}
2005
2006static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2007{
2008 return security_ops->setprocattr(p, name, value, size);
2009}
2010
2011static inline int security_netlink_send(struct sock *sk, struct sk_buff * skb)
2012{
2013 return security_ops->netlink_send(sk, skb);
2014}
2015
2016static inline int security_netlink_recv(struct sk_buff * skb)
2017{
2018 return security_ops->netlink_recv(skb);
2019}
2020
2021/* prototypes */
2022extern int security_init (void);
2023extern int register_security (struct security_operations *ops);
2024extern int unregister_security (struct security_operations *ops);
2025extern int mod_reg_security (const char *name, struct security_operations *ops);
2026extern int mod_unreg_security (const char *name, struct security_operations *ops);
Greg KHb67dbf92005-07-07 14:37:53 -07002027extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2028 struct dentry *parent, void *data,
2029 struct file_operations *fops);
2030extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2031extern void securityfs_remove(struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002032
2033
2034#else /* CONFIG_SECURITY */
2035
2036/*
2037 * This is the default capabilities functionality. Most of these functions
2038 * are just stubbed out, but a few must call the proper capable code.
2039 */
2040
2041static inline int security_init(void)
2042{
2043 return 0;
2044}
2045
2046static inline int security_ptrace (struct task_struct *parent, struct task_struct * child)
2047{
2048 return cap_ptrace (parent, child);
2049}
2050
2051static inline int security_capget (struct task_struct *target,
2052 kernel_cap_t *effective,
2053 kernel_cap_t *inheritable,
2054 kernel_cap_t *permitted)
2055{
2056 return cap_capget (target, effective, inheritable, permitted);
2057}
2058
2059static inline int security_capset_check (struct task_struct *target,
2060 kernel_cap_t *effective,
2061 kernel_cap_t *inheritable,
2062 kernel_cap_t *permitted)
2063{
2064 return cap_capset_check (target, effective, inheritable, permitted);
2065}
2066
2067static inline void security_capset_set (struct task_struct *target,
2068 kernel_cap_t *effective,
2069 kernel_cap_t *inheritable,
2070 kernel_cap_t *permitted)
2071{
2072 cap_capset_set (target, effective, inheritable, permitted);
2073}
2074
Chris Wright12b59892006-03-25 03:07:41 -08002075static inline int security_capable(struct task_struct *tsk, int cap)
2076{
2077 return cap_capable(tsk, cap);
2078}
2079
Linus Torvalds1da177e2005-04-16 15:20:36 -07002080static inline int security_acct (struct file *file)
2081{
2082 return 0;
2083}
2084
2085static inline int security_sysctl(struct ctl_table *table, int op)
2086{
2087 return 0;
2088}
2089
2090static inline int security_quotactl (int cmds, int type, int id,
2091 struct super_block * sb)
2092{
2093 return 0;
2094}
2095
2096static inline int security_quota_on (struct dentry * dentry)
2097{
2098 return 0;
2099}
2100
2101static inline int security_syslog(int type)
2102{
2103 return cap_syslog(type);
2104}
2105
2106static inline int security_settime(struct timespec *ts, struct timezone *tz)
2107{
2108 return cap_settime(ts, tz);
2109}
2110
2111static inline int security_vm_enough_memory(long pages)
2112{
2113 return cap_vm_enough_memory(pages);
2114}
2115
2116static inline int security_bprm_alloc (struct linux_binprm *bprm)
2117{
2118 return 0;
2119}
2120
2121static inline void security_bprm_free (struct linux_binprm *bprm)
2122{ }
2123
2124static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
2125{
2126 cap_bprm_apply_creds (bprm, unsafe);
2127}
2128
2129static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
2130{
2131 return;
2132}
2133
2134static inline int security_bprm_set (struct linux_binprm *bprm)
2135{
2136 return cap_bprm_set_security (bprm);
2137}
2138
2139static inline int security_bprm_check (struct linux_binprm *bprm)
2140{
2141 return 0;
2142}
2143
2144static inline int security_bprm_secureexec (struct linux_binprm *bprm)
2145{
2146 return cap_bprm_secureexec(bprm);
2147}
2148
2149static inline int security_sb_alloc (struct super_block *sb)
2150{
2151 return 0;
2152}
2153
2154static inline void security_sb_free (struct super_block *sb)
2155{ }
2156
2157static inline int security_sb_copy_data (struct file_system_type *type,
2158 void *orig, void *copy)
2159{
2160 return 0;
2161}
2162
2163static inline int security_sb_kern_mount (struct super_block *sb, void *data)
2164{
2165 return 0;
2166}
2167
2168static inline int security_sb_statfs (struct super_block *sb)
2169{
2170 return 0;
2171}
2172
2173static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
2174 char *type, unsigned long flags,
2175 void *data)
2176{
2177 return 0;
2178}
2179
2180static inline int security_sb_check_sb (struct vfsmount *mnt,
2181 struct nameidata *nd)
2182{
2183 return 0;
2184}
2185
2186static inline int security_sb_umount (struct vfsmount *mnt, int flags)
2187{
2188 return 0;
2189}
2190
2191static inline void security_sb_umount_close (struct vfsmount *mnt)
2192{ }
2193
2194static inline void security_sb_umount_busy (struct vfsmount *mnt)
2195{ }
2196
2197static inline void security_sb_post_remount (struct vfsmount *mnt,
2198 unsigned long flags, void *data)
2199{ }
2200
2201static inline void security_sb_post_mountroot (void)
2202{ }
2203
2204static inline void security_sb_post_addmount (struct vfsmount *mnt,
2205 struct nameidata *mountpoint_nd)
2206{ }
2207
2208static inline int security_sb_pivotroot (struct nameidata *old_nd,
2209 struct nameidata *new_nd)
2210{
2211 return 0;
2212}
2213
2214static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
2215 struct nameidata *new_nd)
2216{ }
2217
2218static inline int security_inode_alloc (struct inode *inode)
2219{
2220 return 0;
2221}
2222
2223static inline void security_inode_free (struct inode *inode)
2224{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002225
2226static inline int security_inode_init_security (struct inode *inode,
2227 struct inode *dir,
2228 char **name,
2229 void **value,
2230 size_t *len)
2231{
2232 return -EOPNOTSUPP;
2233}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234
2235static inline int security_inode_create (struct inode *dir,
2236 struct dentry *dentry,
2237 int mode)
2238{
2239 return 0;
2240}
2241
Linus Torvalds1da177e2005-04-16 15:20:36 -07002242static inline int security_inode_link (struct dentry *old_dentry,
2243 struct inode *dir,
2244 struct dentry *new_dentry)
2245{
2246 return 0;
2247}
2248
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249static inline int security_inode_unlink (struct inode *dir,
2250 struct dentry *dentry)
2251{
2252 return 0;
2253}
2254
2255static inline int security_inode_symlink (struct inode *dir,
2256 struct dentry *dentry,
2257 const char *old_name)
2258{
2259 return 0;
2260}
2261
Linus Torvalds1da177e2005-04-16 15:20:36 -07002262static inline int security_inode_mkdir (struct inode *dir,
2263 struct dentry *dentry,
2264 int mode)
2265{
2266 return 0;
2267}
2268
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269static inline int security_inode_rmdir (struct inode *dir,
2270 struct dentry *dentry)
2271{
2272 return 0;
2273}
2274
2275static inline int security_inode_mknod (struct inode *dir,
2276 struct dentry *dentry,
2277 int mode, dev_t dev)
2278{
2279 return 0;
2280}
2281
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282static inline int security_inode_rename (struct inode *old_dir,
2283 struct dentry *old_dentry,
2284 struct inode *new_dir,
2285 struct dentry *new_dentry)
2286{
2287 return 0;
2288}
2289
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290static inline int security_inode_readlink (struct dentry *dentry)
2291{
2292 return 0;
2293}
2294
2295static inline int security_inode_follow_link (struct dentry *dentry,
2296 struct nameidata *nd)
2297{
2298 return 0;
2299}
2300
2301static inline int security_inode_permission (struct inode *inode, int mask,
2302 struct nameidata *nd)
2303{
2304 return 0;
2305}
2306
2307static inline int security_inode_setattr (struct dentry *dentry,
2308 struct iattr *attr)
2309{
2310 return 0;
2311}
2312
2313static inline int security_inode_getattr (struct vfsmount *mnt,
2314 struct dentry *dentry)
2315{
2316 return 0;
2317}
2318
2319static inline void security_inode_delete (struct inode *inode)
2320{ }
2321
2322static inline int security_inode_setxattr (struct dentry *dentry, char *name,
2323 void *value, size_t size, int flags)
2324{
2325 return cap_inode_setxattr(dentry, name, value, size, flags);
2326}
2327
2328static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
2329 void *value, size_t size, int flags)
2330{ }
2331
2332static inline int security_inode_getxattr (struct dentry *dentry, char *name)
2333{
2334 return 0;
2335}
2336
2337static inline int security_inode_listxattr (struct dentry *dentry)
2338{
2339 return 0;
2340}
2341
2342static inline int security_inode_removexattr (struct dentry *dentry, char *name)
2343{
2344 return cap_inode_removexattr(dentry, name);
2345}
2346
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00002347static inline const char *security_inode_xattr_getsuffix (void)
2348{
2349 return NULL ;
2350}
2351
Dustin Kirkland7306a0b2005-11-16 15:53:13 +00002352static 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 -07002353{
2354 return -EOPNOTSUPP;
2355}
2356
2357static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2358{
2359 return -EOPNOTSUPP;
2360}
2361
2362static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2363{
2364 return 0;
2365}
2366
2367static inline int security_file_permission (struct file *file, int mask)
2368{
2369 return 0;
2370}
2371
2372static inline int security_file_alloc (struct file *file)
2373{
2374 return 0;
2375}
2376
2377static inline void security_file_free (struct file *file)
2378{ }
2379
2380static inline int security_file_ioctl (struct file *file, unsigned int cmd,
2381 unsigned long arg)
2382{
2383 return 0;
2384}
2385
2386static inline int security_file_mmap (struct file *file, unsigned long reqprot,
2387 unsigned long prot,
2388 unsigned long flags)
2389{
2390 return 0;
2391}
2392
2393static inline int security_file_mprotect (struct vm_area_struct *vma,
2394 unsigned long reqprot,
2395 unsigned long prot)
2396{
2397 return 0;
2398}
2399
2400static inline int security_file_lock (struct file *file, unsigned int cmd)
2401{
2402 return 0;
2403}
2404
2405static inline int security_file_fcntl (struct file *file, unsigned int cmd,
2406 unsigned long arg)
2407{
2408 return 0;
2409}
2410
2411static inline int security_file_set_fowner (struct file *file)
2412{
2413 return 0;
2414}
2415
2416static inline int security_file_send_sigiotask (struct task_struct *tsk,
2417 struct fown_struct *fown,
2418 int sig)
2419{
2420 return 0;
2421}
2422
2423static inline int security_file_receive (struct file *file)
2424{
2425 return 0;
2426}
2427
2428static inline int security_task_create (unsigned long clone_flags)
2429{
2430 return 0;
2431}
2432
2433static inline int security_task_alloc (struct task_struct *p)
2434{
2435 return 0;
2436}
2437
2438static inline void security_task_free (struct task_struct *p)
2439{ }
2440
2441static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
2442 int flags)
2443{
2444 return 0;
2445}
2446
2447static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
2448 uid_t old_suid, int flags)
2449{
2450 return cap_task_post_setuid (old_ruid, old_euid, old_suid, flags);
2451}
2452
2453static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
2454 int flags)
2455{
2456 return 0;
2457}
2458
2459static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
2460{
2461 return 0;
2462}
2463
2464static inline int security_task_getpgid (struct task_struct *p)
2465{
2466 return 0;
2467}
2468
2469static inline int security_task_getsid (struct task_struct *p)
2470{
2471 return 0;
2472}
2473
2474static inline int security_task_setgroups (struct group_info *group_info)
2475{
2476 return 0;
2477}
2478
2479static inline int security_task_setnice (struct task_struct *p, int nice)
2480{
2481 return 0;
2482}
2483
2484static inline int security_task_setrlimit (unsigned int resource,
2485 struct rlimit *new_rlim)
2486{
2487 return 0;
2488}
2489
2490static inline int security_task_setscheduler (struct task_struct *p,
2491 int policy,
2492 struct sched_param *lp)
2493{
2494 return 0;
2495}
2496
2497static inline int security_task_getscheduler (struct task_struct *p)
2498{
2499 return 0;
2500}
2501
2502static inline int security_task_kill (struct task_struct *p,
2503 struct siginfo *info, int sig)
2504{
2505 return 0;
2506}
2507
2508static inline int security_task_wait (struct task_struct *p)
2509{
2510 return 0;
2511}
2512
2513static inline int security_task_prctl (int option, unsigned long arg2,
2514 unsigned long arg3,
2515 unsigned long arg4,
2516 unsigned long arg5)
2517{
2518 return 0;
2519}
2520
2521static inline void security_task_reparent_to_init (struct task_struct *p)
2522{
2523 cap_task_reparent_to_init (p);
2524}
2525
2526static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2527{ }
2528
2529static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
2530 short flag)
2531{
2532 return 0;
2533}
2534
Dustin Kirkland8c8570f2005-11-03 17:15:16 +00002535static inline int security_ipc_getsecurity(struct kern_ipc_perm *ipcp, void *buffer, size_t size)
2536{
2537 return -EOPNOTSUPP;
2538}
2539
Linus Torvalds1da177e2005-04-16 15:20:36 -07002540static inline int security_msg_msg_alloc (struct msg_msg * msg)
2541{
2542 return 0;
2543}
2544
2545static inline void security_msg_msg_free (struct msg_msg * msg)
2546{ }
2547
2548static inline int security_msg_queue_alloc (struct msg_queue *msq)
2549{
2550 return 0;
2551}
2552
2553static inline void security_msg_queue_free (struct msg_queue *msq)
2554{ }
2555
2556static inline int security_msg_queue_associate (struct msg_queue * msq,
2557 int msqflg)
2558{
2559 return 0;
2560}
2561
2562static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
2563{
2564 return 0;
2565}
2566
2567static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
2568 struct msg_msg * msg, int msqflg)
2569{
2570 return 0;
2571}
2572
2573static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
2574 struct msg_msg * msg,
2575 struct task_struct * target,
2576 long type, int mode)
2577{
2578 return 0;
2579}
2580
2581static inline int security_shm_alloc (struct shmid_kernel *shp)
2582{
2583 return 0;
2584}
2585
2586static inline void security_shm_free (struct shmid_kernel *shp)
2587{ }
2588
2589static inline int security_shm_associate (struct shmid_kernel * shp,
2590 int shmflg)
2591{
2592 return 0;
2593}
2594
2595static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
2596{
2597 return 0;
2598}
2599
2600static inline int security_shm_shmat (struct shmid_kernel * shp,
2601 char __user *shmaddr, int shmflg)
2602{
2603 return 0;
2604}
2605
2606static inline int security_sem_alloc (struct sem_array *sma)
2607{
2608 return 0;
2609}
2610
2611static inline void security_sem_free (struct sem_array *sma)
2612{ }
2613
2614static inline int security_sem_associate (struct sem_array * sma, int semflg)
2615{
2616 return 0;
2617}
2618
2619static inline int security_sem_semctl (struct sem_array * sma, int cmd)
2620{
2621 return 0;
2622}
2623
2624static inline int security_sem_semop (struct sem_array * sma,
2625 struct sembuf * sops, unsigned nsops,
2626 int alter)
2627{
2628 return 0;
2629}
2630
2631static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
2632{ }
2633
2634static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
2635{
2636 return -EINVAL;
2637}
2638
2639static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2640{
2641 return -EINVAL;
2642}
2643
2644static inline int security_netlink_send (struct sock *sk, struct sk_buff *skb)
2645{
2646 return cap_netlink_send (sk, skb);
2647}
2648
2649static inline int security_netlink_recv (struct sk_buff *skb)
2650{
2651 return cap_netlink_recv (skb);
2652}
2653
Randy Dunlaped5a9272006-02-01 03:05:00 -08002654static inline struct dentry *securityfs_create_dir(const char *name,
2655 struct dentry *parent)
2656{
2657 return ERR_PTR(-ENODEV);
2658}
2659
2660static inline struct dentry *securityfs_create_file(const char *name,
2661 mode_t mode,
2662 struct dentry *parent,
2663 void *data,
2664 struct file_operations *fops)
2665{
2666 return ERR_PTR(-ENODEV);
2667}
2668
2669static inline void securityfs_remove(struct dentry *dentry)
2670{
2671}
2672
Linus Torvalds1da177e2005-04-16 15:20:36 -07002673#endif /* CONFIG_SECURITY */
2674
2675#ifdef CONFIG_SECURITY_NETWORK
2676static inline int security_unix_stream_connect(struct socket * sock,
2677 struct socket * other,
2678 struct sock * newsk)
2679{
2680 return security_ops->unix_stream_connect(sock, other, newsk);
2681}
2682
2683
2684static inline int security_unix_may_send(struct socket * sock,
2685 struct socket * other)
2686{
2687 return security_ops->unix_may_send(sock, other);
2688}
2689
2690static inline int security_socket_create (int family, int type,
2691 int protocol, int kern)
2692{
2693 return security_ops->socket_create(family, type, protocol, kern);
2694}
2695
2696static inline void security_socket_post_create(struct socket * sock,
2697 int family,
2698 int type,
2699 int protocol, int kern)
2700{
2701 security_ops->socket_post_create(sock, family, type,
2702 protocol, kern);
2703}
2704
2705static inline int security_socket_bind(struct socket * sock,
2706 struct sockaddr * address,
2707 int addrlen)
2708{
2709 return security_ops->socket_bind(sock, address, addrlen);
2710}
2711
2712static inline int security_socket_connect(struct socket * sock,
2713 struct sockaddr * address,
2714 int addrlen)
2715{
2716 return security_ops->socket_connect(sock, address, addrlen);
2717}
2718
2719static inline int security_socket_listen(struct socket * sock, int backlog)
2720{
2721 return security_ops->socket_listen(sock, backlog);
2722}
2723
2724static inline int security_socket_accept(struct socket * sock,
2725 struct socket * newsock)
2726{
2727 return security_ops->socket_accept(sock, newsock);
2728}
2729
2730static inline void security_socket_post_accept(struct socket * sock,
2731 struct socket * newsock)
2732{
2733 security_ops->socket_post_accept(sock, newsock);
2734}
2735
2736static inline int security_socket_sendmsg(struct socket * sock,
2737 struct msghdr * msg, int size)
2738{
2739 return security_ops->socket_sendmsg(sock, msg, size);
2740}
2741
2742static inline int security_socket_recvmsg(struct socket * sock,
2743 struct msghdr * msg, int size,
2744 int flags)
2745{
2746 return security_ops->socket_recvmsg(sock, msg, size, flags);
2747}
2748
2749static inline int security_socket_getsockname(struct socket * sock)
2750{
2751 return security_ops->socket_getsockname(sock);
2752}
2753
2754static inline int security_socket_getpeername(struct socket * sock)
2755{
2756 return security_ops->socket_getpeername(sock);
2757}
2758
2759static inline int security_socket_getsockopt(struct socket * sock,
2760 int level, int optname)
2761{
2762 return security_ops->socket_getsockopt(sock, level, optname);
2763}
2764
2765static inline int security_socket_setsockopt(struct socket * sock,
2766 int level, int optname)
2767{
2768 return security_ops->socket_setsockopt(sock, level, optname);
2769}
2770
2771static inline int security_socket_shutdown(struct socket * sock, int how)
2772{
2773 return security_ops->socket_shutdown(sock, how);
2774}
2775
2776static inline int security_sock_rcv_skb (struct sock * sk,
2777 struct sk_buff * skb)
2778{
2779 return security_ops->socket_sock_rcv_skb (sk, skb);
2780}
2781
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002782static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2783 int __user *optlen, unsigned len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002784{
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002785 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
2786}
2787
2788static inline int security_socket_getpeersec_dgram(struct sk_buff *skb, char **secdata,
2789 u32 *seclen)
2790{
2791 return security_ops->socket_getpeersec_dgram(skb, secdata, seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002792}
2793
Al Virodd0fc662005-10-07 07:46:04 +01002794static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002795{
2796 return security_ops->sk_alloc_security(sk, family, priority);
2797}
2798
2799static inline void security_sk_free(struct sock *sk)
2800{
2801 return security_ops->sk_free_security(sk);
2802}
Trent Jaegerdf718372005-12-13 23:12:27 -08002803
2804static inline unsigned int security_sk_sid(struct sock *sk, struct flowi *fl, u8 dir)
2805{
2806 return security_ops->sk_getsid(sk, fl, dir);
2807}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002808#else /* CONFIG_SECURITY_NETWORK */
2809static inline int security_unix_stream_connect(struct socket * sock,
2810 struct socket * other,
2811 struct sock * newsk)
2812{
2813 return 0;
2814}
2815
2816static inline int security_unix_may_send(struct socket * sock,
2817 struct socket * other)
2818{
2819 return 0;
2820}
2821
2822static inline int security_socket_create (int family, int type,
2823 int protocol, int kern)
2824{
2825 return 0;
2826}
2827
2828static inline void security_socket_post_create(struct socket * sock,
2829 int family,
2830 int type,
2831 int protocol, int kern)
2832{
2833}
2834
2835static inline int security_socket_bind(struct socket * sock,
2836 struct sockaddr * address,
2837 int addrlen)
2838{
2839 return 0;
2840}
2841
2842static inline int security_socket_connect(struct socket * sock,
2843 struct sockaddr * address,
2844 int addrlen)
2845{
2846 return 0;
2847}
2848
2849static inline int security_socket_listen(struct socket * sock, int backlog)
2850{
2851 return 0;
2852}
2853
2854static inline int security_socket_accept(struct socket * sock,
2855 struct socket * newsock)
2856{
2857 return 0;
2858}
2859
2860static inline void security_socket_post_accept(struct socket * sock,
2861 struct socket * newsock)
2862{
2863}
2864
2865static inline int security_socket_sendmsg(struct socket * sock,
2866 struct msghdr * msg, int size)
2867{
2868 return 0;
2869}
2870
2871static inline int security_socket_recvmsg(struct socket * sock,
2872 struct msghdr * msg, int size,
2873 int flags)
2874{
2875 return 0;
2876}
2877
2878static inline int security_socket_getsockname(struct socket * sock)
2879{
2880 return 0;
2881}
2882
2883static inline int security_socket_getpeername(struct socket * sock)
2884{
2885 return 0;
2886}
2887
2888static inline int security_socket_getsockopt(struct socket * sock,
2889 int level, int optname)
2890{
2891 return 0;
2892}
2893
2894static inline int security_socket_setsockopt(struct socket * sock,
2895 int level, int optname)
2896{
2897 return 0;
2898}
2899
2900static inline int security_socket_shutdown(struct socket * sock, int how)
2901{
2902 return 0;
2903}
2904static inline int security_sock_rcv_skb (struct sock * sk,
2905 struct sk_buff * skb)
2906{
2907 return 0;
2908}
2909
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002910static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2911 int __user *optlen, unsigned len)
2912{
2913 return -ENOPROTOOPT;
2914}
2915
2916static inline int security_socket_getpeersec_dgram(struct sk_buff *skb, char **secdata,
2917 u32 *seclen)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002918{
2919 return -ENOPROTOOPT;
2920}
2921
Al Virodd0fc662005-10-07 07:46:04 +01002922static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002923{
2924 return 0;
2925}
2926
2927static inline void security_sk_free(struct sock *sk)
2928{
2929}
Trent Jaegerdf718372005-12-13 23:12:27 -08002930
2931static inline unsigned int security_sk_sid(struct sock *sk, struct flowi *fl, u8 dir)
2932{
2933 return 0;
2934}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002935#endif /* CONFIG_SECURITY_NETWORK */
2936
Trent Jaegerdf718372005-12-13 23:12:27 -08002937#ifdef CONFIG_SECURITY_NETWORK_XFRM
2938static inline int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
2939{
2940 return security_ops->xfrm_policy_alloc_security(xp, sec_ctx);
2941}
2942
2943static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
2944{
2945 return security_ops->xfrm_policy_clone_security(old, new);
2946}
2947
2948static inline void security_xfrm_policy_free(struct xfrm_policy *xp)
2949{
2950 security_ops->xfrm_policy_free_security(xp);
2951}
2952
2953static inline int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
2954{
2955 return security_ops->xfrm_state_alloc_security(x, sec_ctx);
2956}
2957
2958static inline void security_xfrm_state_free(struct xfrm_state *x)
2959{
2960 security_ops->xfrm_state_free_security(x);
2961}
2962
2963static inline int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir)
2964{
2965 return security_ops->xfrm_policy_lookup(xp, sk_sid, dir);
2966}
2967#else /* CONFIG_SECURITY_NETWORK_XFRM */
2968static inline int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
2969{
2970 return 0;
2971}
2972
2973static inline int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
2974{
2975 return 0;
2976}
2977
2978static inline void security_xfrm_policy_free(struct xfrm_policy *xp)
2979{
2980}
2981
2982static inline int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
2983{
2984 return 0;
2985}
2986
2987static inline void security_xfrm_state_free(struct xfrm_state *x)
2988{
2989}
2990
2991static inline int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir)
2992{
2993 return 0;
2994}
2995#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2996
David Howells29db9192005-10-30 15:02:44 -08002997#ifdef CONFIG_KEYS
2998#ifdef CONFIG_SECURITY
2999static inline int security_key_alloc(struct key *key)
3000{
3001 return security_ops->key_alloc(key);
3002}
3003
3004static inline void security_key_free(struct key *key)
3005{
3006 security_ops->key_free(key);
3007}
3008
3009static inline int security_key_permission(key_ref_t key_ref,
3010 struct task_struct *context,
3011 key_perm_t perm)
3012{
3013 return security_ops->key_permission(key_ref, context, perm);
3014}
3015
3016#else
3017
3018static inline int security_key_alloc(struct key *key)
3019{
3020 return 0;
3021}
3022
3023static inline void security_key_free(struct key *key)
3024{
3025}
3026
3027static inline int security_key_permission(key_ref_t key_ref,
3028 struct task_struct *context,
3029 key_perm_t perm)
3030{
3031 return 0;
3032}
3033
3034#endif
3035#endif /* CONFIG_KEYS */
3036
Linus Torvalds1da177e2005-04-16 15:20:36 -07003037#endif /* ! __LINUX_SECURITY_H */
3038