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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Linux Security plug
3 *
4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
19 *
20 */
21
22#ifndef __LINUX_SECURITY_H
23#define __LINUX_SECURITY_H
24
25#include <linux/fs.h>
26#include <linux/binfmts.h>
27#include <linux/signal.h>
28#include <linux/resource.h>
29#include <linux/sem.h>
30#include <linux/shm.h>
31#include <linux/msg.h>
32#include <linux/sched.h>
David Howells29db9192005-10-30 15:02:44 -080033#include <linux/key.h>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -070034#include <linux/xfrm.h>
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -070035#include <net/flow.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020037/* Maximum number of letters for an LSM name string */
38#define SECURITY_NAME_MAX 10
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040struct ctl_table;
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +020041struct audit_krule;
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
43/*
44 * These functions are in security/capability.c and are used
45 * as the default capabilities functions
46 */
Eric Paris7b41b172008-04-23 14:10:25 -040047extern int cap_capable(struct task_struct *tsk, int cap);
48extern int cap_settime(struct timespec *ts, struct timezone *tz);
49extern int cap_ptrace(struct task_struct *parent, struct task_struct *child);
50extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
51extern int cap_capset_check(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
52extern void cap_capset_set(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
53extern int cap_bprm_set_security(struct linux_binprm *bprm);
54extern void cap_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
Linus Torvalds1da177e2005-04-16 15:20:36 -070055extern int cap_bprm_secureexec(struct linux_binprm *bprm);
56extern int cap_inode_setxattr(struct dentry *dentry, char *name, void *value, size_t size, int flags);
57extern int cap_inode_removexattr(struct dentry *dentry, char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -070058extern int cap_inode_need_killpriv(struct dentry *dentry);
59extern int cap_inode_killpriv(struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -040060extern int cap_task_post_setuid(uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags);
61extern void cap_task_reparent_to_init(struct task_struct *p);
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070062extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
63 unsigned long arg4, unsigned long arg5, long *rc_p);
Eric Paris7b41b172008-04-23 14:10:25 -040064extern int cap_task_setscheduler(struct task_struct *p, int policy, struct sched_param *lp);
65extern int cap_task_setioprio(struct task_struct *p, int ioprio);
66extern int cap_task_setnice(struct task_struct *p, int nice);
67extern int cap_syslog(int type);
James Morris20510f22007-10-16 23:31:32 -070068extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -070069
70struct msghdr;
71struct sk_buff;
72struct sock;
73struct sockaddr;
74struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -080075struct flowi;
76struct dst_entry;
77struct xfrm_selector;
78struct xfrm_policy;
79struct xfrm_state;
80struct xfrm_user_sec_ctx;
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
82extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
Darrel Goeddelc7bdb542006-06-27 13:26:11 -070083extern int cap_netlink_recv(struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
Eric Parised032182007-06-28 15:55:21 -040085extern unsigned long mmap_min_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -070086/*
87 * Values used in the task_security_ops calls
88 */
89/* setuid or setgid, id0 == uid or gid */
90#define LSM_SETID_ID 1
91
92/* setreuid or setregid, id0 == real, id1 == eff */
93#define LSM_SETID_RE 2
94
95/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
96#define LSM_SETID_RES 4
97
98/* setfsuid or setfsgid, id0 == fsuid or fsgid */
99#define LSM_SETID_FS 8
100
101/* forward declares to avoid warnings */
102struct nfsctl_arg;
103struct sched_param;
104struct swap_info_struct;
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700105struct request_sock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106
107/* bprm_apply_creds unsafe reasons */
108#define LSM_UNSAFE_SHARE 1
109#define LSM_UNSAFE_PTRACE 2
110#define LSM_UNSAFE_PTRACE_CAP 4
111
112#ifdef CONFIG_SECURITY
113
Eric Parise0007522008-03-05 10:31:54 -0500114struct security_mnt_opts {
115 char **mnt_opts;
116 int *mnt_opts_flags;
117 int num_mnt_opts;
118};
119
120static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
121{
122 opts->mnt_opts = NULL;
123 opts->mnt_opts_flags = NULL;
124 opts->num_mnt_opts = 0;
125}
126
127static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
128{
129 int i;
130 if (opts->mnt_opts)
Eric Paris7b41b172008-04-23 14:10:25 -0400131 for (i = 0; i < opts->num_mnt_opts; i++)
Eric Parise0007522008-03-05 10:31:54 -0500132 kfree(opts->mnt_opts[i]);
133 kfree(opts->mnt_opts);
134 opts->mnt_opts = NULL;
135 kfree(opts->mnt_opts_flags);
136 opts->mnt_opts_flags = NULL;
137 opts->num_mnt_opts = 0;
138}
139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140/**
141 * struct security_operations - main security structure
142 *
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200143 * Security module identifier.
144 *
145 * @name:
146 * A string that acts as a unique identifeir for the LSM with max number
147 * of characters = SECURITY_NAME_MAX.
148 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 * Security hooks for program execution operations.
150 *
151 * @bprm_alloc_security:
152 * Allocate and attach a security structure to the @bprm->security field.
153 * The security field is initialized to NULL when the bprm structure is
154 * allocated.
155 * @bprm contains the linux_binprm structure to be modified.
156 * Return 0 if operation was successful.
157 * @bprm_free_security:
158 * @bprm contains the linux_binprm structure to be modified.
159 * Deallocate and clear the @bprm->security field.
160 * @bprm_apply_creds:
161 * Compute and set the security attributes of a process being transformed
162 * by an execve operation based on the old attributes (current->security)
163 * and the information saved in @bprm->security by the set_security hook.
164 * Since this hook function (and its caller) are void, this hook can not
165 * return an error. However, it can leave the security attributes of the
166 * process unchanged if an access failure occurs at this point.
167 * bprm_apply_creds is called under task_lock. @unsafe indicates various
168 * reasons why it may be unsafe to change security state.
169 * @bprm contains the linux_binprm structure.
170 * @bprm_post_apply_creds:
171 * Runs after bprm_apply_creds with the task_lock dropped, so that
172 * functions which cannot be called safely under the task_lock can
173 * be used. This hook is a good place to perform state changes on
174 * the process such as closing open file descriptors to which access
175 * is no longer granted if the attributes were changed.
176 * Note that a security module might need to save state between
177 * bprm_apply_creds and bprm_post_apply_creds to store the decision
178 * on whether the process may proceed.
179 * @bprm contains the linux_binprm structure.
180 * @bprm_set_security:
181 * Save security information in the bprm->security field, typically based
182 * on information about the bprm->file, for later use by the apply_creds
183 * hook. This hook may also optionally check permissions (e.g. for
184 * transitions between security domains).
185 * This hook may be called multiple times during a single execve, e.g. for
186 * interpreters. The hook can tell whether it has already been called by
187 * checking to see if @bprm->security is non-NULL. If so, then the hook
188 * may decide either to retain the security information saved earlier or
189 * to replace it.
190 * @bprm contains the linux_binprm structure.
191 * Return 0 if the hook is successful and permission is granted.
192 * @bprm_check_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400193 * This hook mediates the point when a search for a binary handler will
194 * begin. It allows a check the @bprm->security value which is set in
195 * the preceding set_security call. The primary difference from
196 * set_security is that the argv list and envp list are reliably
197 * available in @bprm. This hook may be called multiple times
198 * during a single execve; and in each pass set_security is called
199 * first.
200 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 * Return 0 if the hook is successful and permission is granted.
202 * @bprm_secureexec:
Eric Paris7b41b172008-04-23 14:10:25 -0400203 * Return a boolean value (0 or 1) indicating whether a "secure exec"
204 * is required. The flag is passed in the auxiliary table
205 * on the initial stack to the ELF interpreter to indicate whether libc
206 * should enable secure mode.
207 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 *
209 * Security hooks for filesystem operations.
210 *
211 * @sb_alloc_security:
212 * Allocate and attach a security structure to the sb->s_security field.
213 * The s_security field is initialized to NULL when the structure is
214 * allocated.
215 * @sb contains the super_block structure to be modified.
216 * Return 0 if operation was successful.
217 * @sb_free_security:
218 * Deallocate and clear the sb->s_security field.
219 * @sb contains the super_block structure to be modified.
220 * @sb_statfs:
David Howells726c3342006-06-23 02:02:58 -0700221 * Check permission before obtaining filesystem statistics for the @mnt
222 * mountpoint.
223 * @dentry is a handle on the superblock for the filesystem.
Eric Paris7b41b172008-04-23 14:10:25 -0400224 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 * @sb_mount:
226 * Check permission before an object specified by @dev_name is mounted on
227 * the mount point named by @nd. For an ordinary mount, @dev_name
228 * identifies a device if the file system type requires a device. For a
229 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
230 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
231 * pathname of the object being mounted.
232 * @dev_name contains the name for object being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400233 * @path contains the path for mount point object.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 * @type contains the filesystem type.
235 * @flags contains the mount flags.
236 * @data contains the filesystem-specific data.
237 * Return 0 if permission is granted.
238 * @sb_copy_data:
239 * Allow mount option data to be copied prior to parsing by the filesystem,
240 * so that the security module can extract security-specific mount
241 * options cleanly (a filesystem may modify the data e.g. with strsep()).
242 * This also allows the original mount data to be stripped of security-
243 * specific options to avoid having to make filesystems aware of them.
244 * @type the type of filesystem being mounted.
245 * @orig the original mount data copied from userspace.
246 * @copy copied data which will be passed to the security module.
247 * Returns 0 if the copy was successful.
248 * @sb_check_sb:
249 * Check permission before the device with superblock @mnt->sb is mounted
250 * on the mount point named by @nd.
251 * @mnt contains the vfsmount for device being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400252 * @path contains the path for the mount point.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 * Return 0 if permission is granted.
254 * @sb_umount:
255 * Check permission before the @mnt file system is unmounted.
256 * @mnt contains the mounted file system.
257 * @flags contains the unmount flags, e.g. MNT_FORCE.
258 * Return 0 if permission is granted.
259 * @sb_umount_close:
260 * Close any files in the @mnt mounted filesystem that are held open by
261 * the security module. This hook is called during an umount operation
262 * prior to checking whether the filesystem is still busy.
263 * @mnt contains the mounted filesystem.
264 * @sb_umount_busy:
265 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
266 * any files that were closed by umount_close. This hook is called during
267 * an umount operation if the umount fails after a call to the
268 * umount_close hook.
269 * @mnt contains the mounted filesystem.
270 * @sb_post_remount:
271 * Update the security module's state when a filesystem is remounted.
272 * This hook is only called if the remount was successful.
273 * @mnt contains the mounted file system.
274 * @flags contains the new filesystem flags.
275 * @data contains the filesystem-specific data.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 * @sb_post_addmount:
277 * Update the security module's state when a filesystem is mounted.
278 * This hook is called any time a mount is successfully grafetd to
279 * the tree.
280 * @mnt contains the mounted filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400281 * @mountpoint contains the path for the mount point.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 * @sb_pivotroot:
283 * Check permission before pivoting the root filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400284 * @old_path contains the path for the new location of the current root (put_old).
Eric Paris7b41b172008-04-23 14:10:25 -0400285 * @new_path contains the path for the new root (new_root).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 * Return 0 if permission is granted.
287 * @sb_post_pivotroot:
288 * Update module state after a successful pivot.
Al Virob5266eb2008-03-22 17:48:24 -0400289 * @old_path contains the path for the old root.
Eric Paris7b41b172008-04-23 14:10:25 -0400290 * @new_path contains the path for the new root.
Eric Parisc9180a52007-11-30 13:00:35 -0500291 * @sb_get_mnt_opts:
292 * Get the security relevant mount options used for a superblock
293 * @sb the superblock to get security mount options from
Eric Parise0007522008-03-05 10:31:54 -0500294 * @opts binary data structure containing all lsm mount data
Eric Parisc9180a52007-11-30 13:00:35 -0500295 * @sb_set_mnt_opts:
296 * Set the security relevant mount options used for a superblock
297 * @sb the superblock to set security mount options for
Eric Parise0007522008-03-05 10:31:54 -0500298 * @opts binary data structure containing all lsm mount data
Eric Parisc9180a52007-11-30 13:00:35 -0500299 * @sb_clone_mnt_opts:
300 * Copy all security options from a given superblock to another
301 * @oldsb old superblock which contain information to clone
302 * @newsb new superblock which needs filled in
Eric Parise0007522008-03-05 10:31:54 -0500303 * @sb_parse_opts_str:
304 * Parse a string of security data filling in the opts structure
305 * @options string containing all mount options known by the LSM
306 * @opts binary data structure usable by the LSM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307 *
308 * Security hooks for inode operations.
309 *
310 * @inode_alloc_security:
311 * Allocate and attach a security structure to @inode->i_security. The
312 * i_security field is initialized to NULL when the inode structure is
313 * allocated.
314 * @inode contains the inode structure.
315 * Return 0 if operation was successful.
316 * @inode_free_security:
317 * @inode contains the inode structure.
318 * Deallocate the inode security structure and set @inode->i_security to
Eric Paris7b41b172008-04-23 14:10:25 -0400319 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700320 * @inode_init_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400321 * Obtain the security attribute name suffix and value to set on a newly
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700322 * created inode and set up the incore security field for the new inode.
323 * This hook is called by the fs code as part of the inode creation
324 * transaction and provides for atomic labeling of the inode, unlike
325 * the post_create/mkdir/... hooks called by the VFS. The hook function
326 * is expected to allocate the name and value via kmalloc, with the caller
327 * being responsible for calling kfree after using them.
328 * If the security module does not use security attributes or does
329 * not wish to put a security attribute on this particular inode,
330 * then it should return -EOPNOTSUPP to skip this processing.
331 * @inode contains the inode structure of the newly created inode.
332 * @dir contains the inode structure of the parent directory.
333 * @name will be set to the allocated name suffix (e.g. selinux).
334 * @value will be set to the allocated attribute value.
335 * @len will be set to the length of the value.
336 * Returns 0 if @name and @value have been successfully set,
337 * -EOPNOTSUPP if no security attribute is needed, or
338 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 * @inode_create:
340 * Check permission to create a regular file.
341 * @dir contains inode structure of the parent of the new file.
342 * @dentry contains the dentry structure for the file to be created.
343 * @mode contains the file mode of the file to be created.
344 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345 * @inode_link:
346 * Check permission before creating a new hard link to a file.
347 * @old_dentry contains the dentry structure for an existing link to the file.
348 * @dir contains the inode structure of the parent directory of the new link.
349 * @new_dentry contains the dentry structure for the new link.
350 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 * @inode_unlink:
Eric Paris7b41b172008-04-23 14:10:25 -0400352 * Check the permission to remove a hard link to a file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353 * @dir contains the inode structure of parent directory of the file.
354 * @dentry contains the dentry structure for file to be unlinked.
355 * Return 0 if permission is granted.
356 * @inode_symlink:
357 * Check the permission to create a symbolic link to a file.
358 * @dir contains the inode structure of parent directory of the symbolic link.
359 * @dentry contains the dentry structure of the symbolic link.
360 * @old_name contains the pathname of file.
361 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 * @inode_mkdir:
363 * Check permissions to create a new directory in the existing directory
Eric Paris7b41b172008-04-23 14:10:25 -0400364 * associated with inode strcture @dir.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 * @dir containst the inode structure of parent of the directory to be created.
366 * @dentry contains the dentry structure of new directory.
367 * @mode contains the mode of new directory.
368 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369 * @inode_rmdir:
370 * Check the permission to remove a directory.
371 * @dir contains the inode structure of parent of the directory to be removed.
372 * @dentry contains the dentry structure of directory to be removed.
373 * Return 0 if permission is granted.
374 * @inode_mknod:
375 * Check permissions when creating a special file (or a socket or a fifo
376 * file created via the mknod system call). Note that if mknod operation
377 * is being done for a regular file, then the create hook will be called
378 * and not this hook.
379 * @dir contains the inode structure of parent of the new file.
380 * @dentry contains the dentry structure of the new file.
381 * @mode contains the mode of the new file.
Michael Opdenacker59c51592007-05-09 08:57:56 +0200382 * @dev contains the device number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 * @inode_rename:
385 * Check for permission to rename a file or directory.
386 * @old_dir contains the inode structure for parent of the old link.
387 * @old_dentry contains the dentry structure of the old link.
388 * @new_dir contains the inode structure for parent of the new link.
389 * @new_dentry contains the dentry structure of the new link.
390 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391 * @inode_readlink:
392 * Check the permission to read the symbolic link.
393 * @dentry contains the dentry structure for the file link.
394 * Return 0 if permission is granted.
395 * @inode_follow_link:
396 * Check permission to follow a symbolic link when looking up a pathname.
397 * @dentry contains the dentry structure for the link.
398 * @nd contains the nameidata structure for the parent directory.
399 * Return 0 if permission is granted.
400 * @inode_permission:
401 * Check permission before accessing an inode. This hook is called by the
402 * existing Linux permission function, so a security module can use it to
403 * provide additional checking for existing Linux permission checks.
404 * Notice that this hook is called when a file is opened (as well as many
405 * other operations), whereas the file_security_ops permission hook is
406 * called when the actual read/write operations are performed.
407 * @inode contains the inode structure to check.
408 * @mask contains the permission mask.
Eric Paris7b41b172008-04-23 14:10:25 -0400409 * @nd contains the nameidata (may be NULL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 * Return 0 if permission is granted.
411 * @inode_setattr:
412 * Check permission before setting file attributes. Note that the kernel
413 * call to notify_change is performed from several locations, whenever
414 * file attributes change (such as when a file is truncated, chown/chmod
415 * operations, transferring disk quotas, etc).
416 * @dentry contains the dentry structure for the file.
417 * @attr is the iattr structure containing the new file attributes.
418 * Return 0 if permission is granted.
419 * @inode_getattr:
420 * Check permission before obtaining file attributes.
421 * @mnt is the vfsmount where the dentry was looked up
422 * @dentry contains the dentry structure for the file.
423 * Return 0 if permission is granted.
424 * @inode_delete:
425 * @inode contains the inode structure for deleted inode.
426 * This hook is called when a deleted inode is released (i.e. an inode
427 * with no hard links has its use count drop to zero). A security module
428 * can use this hook to release any persistent label associated with the
429 * inode.
430 * @inode_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400431 * Check permission before setting the extended attributes
432 * @value identified by @name for @dentry.
433 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434 * @inode_post_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400435 * Update inode security field after successful setxattr operation.
436 * @value identified by @name for @dentry.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 * @inode_getxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400438 * Check permission before obtaining the extended attributes
439 * identified by @name for @dentry.
440 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 * @inode_listxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400442 * Check permission before obtaining the list of extended attribute
443 * names for @dentry.
444 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 * @inode_removexattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400446 * Check permission before removing the extended attribute
447 * identified by @name for @dentry.
448 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 * @inode_getsecurity:
David P. Quigley42492592008-02-04 22:29:39 -0800450 * Retrieve a copy of the extended attribute representation of the
451 * security label associated with @name for @inode via @buffer. Note that
452 * @name is the remainder of the attribute name after the security prefix
453 * has been removed. @alloc is used to specify of the call should return a
454 * value via the buffer or just the value length Return size of buffer on
455 * success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456 * @inode_setsecurity:
457 * Set the security label associated with @name for @inode from the
458 * extended attribute value @value. @size indicates the size of the
459 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
Eric Paris7b41b172008-04-23 14:10:25 -0400460 * Note that @name is the remainder of the attribute name after the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 * security. prefix has been removed.
462 * Return 0 on success.
463 * @inode_listsecurity:
464 * Copy the extended attribute names for the security labels
465 * associated with @inode into @buffer. The maximum size of @buffer
466 * is specified by @buffer_size. @buffer may be NULL to request
467 * the size of the buffer required.
468 * Returns number of bytes used/required on success.
Serge E. Hallynb5376772007-10-16 23:31:36 -0700469 * @inode_need_killpriv:
470 * Called when an inode has been changed.
471 * @dentry is the dentry being changed.
472 * Return <0 on error to abort the inode change operation.
473 * Return 0 if inode_killpriv does not need to be called.
474 * Return >0 if inode_killpriv does need to be called.
475 * @inode_killpriv:
476 * The setuid bit is being removed. Remove similar security labels.
477 * Called with the dentry->d_inode->i_mutex held.
478 * @dentry is the dentry being changed.
479 * Return 0 on success. If error is returned, then the operation
480 * causing setuid bit removal is failed.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200481 * @inode_getsecid:
482 * Get the secid associated with the node.
483 * @inode contains a pointer to the inode.
484 * @secid contains a pointer to the location where result will be saved.
485 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 *
487 * Security hooks for file operations
488 *
489 * @file_permission:
490 * Check file permissions before accessing an open file. This hook is
491 * called by various operations that read or write files. A security
492 * module can use this hook to perform additional checking on these
493 * operations, e.g. to revalidate permissions on use to support privilege
494 * bracketing or policy changes. Notice that this hook is used when the
495 * actual read/write operations are performed, whereas the
496 * inode_security_ops hook is called when a file is opened (as well as
497 * many other operations).
498 * Caveat: Although this hook can be used to revalidate permissions for
499 * various system call operations that read or write files, it does not
500 * address the revalidation of permissions for memory-mapped files.
501 * Security modules must handle this separately if they need such
502 * revalidation.
503 * @file contains the file structure being accessed.
504 * @mask contains the requested permissions.
505 * Return 0 if permission is granted.
506 * @file_alloc_security:
507 * Allocate and attach a security structure to the file->f_security field.
508 * The security field is initialized to NULL when the structure is first
509 * created.
510 * @file contains the file structure to secure.
511 * Return 0 if the hook is successful and permission is granted.
512 * @file_free_security:
513 * Deallocate and free any security structures stored in file->f_security.
514 * @file contains the file structure being modified.
515 * @file_ioctl:
516 * @file contains the file structure.
517 * @cmd contains the operation to perform.
518 * @arg contains the operational arguments.
519 * Check permission for an ioctl operation on @file. Note that @arg can
520 * sometimes represents a user space pointer; in other cases, it may be a
521 * simple integer value. When @arg represents a user space pointer, it
522 * should never be used by the security module.
523 * Return 0 if permission is granted.
524 * @file_mmap :
525 * Check permissions for a mmap operation. The @file may be NULL, e.g.
526 * if mapping anonymous memory.
527 * @file contains the file structure for file to map (may be NULL).
528 * @reqprot contains the protection requested by the application.
529 * @prot contains the protection that will be applied by the kernel.
530 * @flags contains the operational flags.
531 * Return 0 if permission is granted.
532 * @file_mprotect:
533 * Check permissions before changing memory access permissions.
534 * @vma contains the memory region to modify.
535 * @reqprot contains the protection requested by the application.
536 * @prot contains the protection that will be applied by the kernel.
537 * Return 0 if permission is granted.
538 * @file_lock:
539 * Check permission before performing file locking operations.
540 * Note: this hook mediates both flock and fcntl style locks.
541 * @file contains the file structure.
542 * @cmd contains the posix-translated lock operation to perform
543 * (e.g. F_RDLCK, F_WRLCK).
544 * Return 0 if permission is granted.
545 * @file_fcntl:
546 * Check permission before allowing the file operation specified by @cmd
547 * from being performed on the file @file. Note that @arg can sometimes
548 * represents a user space pointer; in other cases, it may be a simple
549 * integer value. When @arg represents a user space pointer, it should
550 * never be used by the security module.
551 * @file contains the file structure.
552 * @cmd contains the operation to be performed.
553 * @arg contains the operational arguments.
554 * Return 0 if permission is granted.
555 * @file_set_fowner:
556 * Save owner security information (typically from current->security) in
557 * file->f_security for later use by the send_sigiotask hook.
558 * @file contains the file structure to update.
559 * Return 0 on success.
560 * @file_send_sigiotask:
561 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
562 * process @tsk. Note that this hook is sometimes called from interrupt.
563 * Note that the fown_struct, @fown, is never outside the context of a
564 * struct file, so the file structure (and associated security information)
565 * can always be obtained:
Robert P. J. Dayb385a142007-02-10 01:46:25 -0800566 * container_of(fown, struct file, f_owner)
Eric Paris7b41b172008-04-23 14:10:25 -0400567 * @tsk contains the structure of task receiving signal.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568 * @fown contains the file owner information.
569 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
570 * Return 0 if permission is granted.
571 * @file_receive:
572 * This hook allows security modules to control the ability of a process
573 * to receive an open file descriptor via socket IPC.
574 * @file contains the file structure being received.
575 * Return 0 if permission is granted.
576 *
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +0900577 * Security hook for dentry
578 *
579 * @dentry_open
580 * Save open-time permission checking state for later use upon
581 * file_permission, and recheck access if anything has changed
582 * since inode_permission.
583 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 * Security hooks for task operations.
585 *
586 * @task_create:
587 * Check permission before creating a child process. See the clone(2)
588 * manual page for definitions of the @clone_flags.
589 * @clone_flags contains the flags indicating what should be shared.
590 * Return 0 if permission is granted.
591 * @task_alloc_security:
592 * @p contains the task_struct for child process.
593 * Allocate and attach a security structure to the p->security field. The
594 * security field is initialized to NULL when the task structure is
595 * allocated.
596 * Return 0 if operation was successful.
597 * @task_free_security:
598 * @p contains the task_struct for process.
599 * Deallocate and clear the p->security field.
600 * @task_setuid:
601 * Check permission before setting one or more of the user identity
602 * attributes of the current process. The @flags parameter indicates
603 * which of the set*uid system calls invoked this hook and how to
604 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
605 * definitions at the beginning of this file for the @flags values and
606 * their meanings.
607 * @id0 contains a uid.
608 * @id1 contains a uid.
609 * @id2 contains a uid.
610 * @flags contains one of the LSM_SETID_* values.
611 * Return 0 if permission is granted.
612 * @task_post_setuid:
613 * Update the module's state after setting one or more of the user
614 * identity attributes of the current process. The @flags parameter
615 * indicates which of the set*uid system calls invoked this hook. If
616 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
617 * parameters are not used.
618 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
619 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
620 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
621 * @flags contains one of the LSM_SETID_* values.
622 * Return 0 on success.
623 * @task_setgid:
624 * Check permission before setting one or more of the group identity
625 * attributes of the current process. The @flags parameter indicates
626 * which of the set*gid system calls invoked this hook and how to
627 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
628 * definitions at the beginning of this file for the @flags values and
629 * their meanings.
630 * @id0 contains a gid.
631 * @id1 contains a gid.
632 * @id2 contains a gid.
633 * @flags contains one of the LSM_SETID_* values.
634 * Return 0 if permission is granted.
635 * @task_setpgid:
636 * Check permission before setting the process group identifier of the
637 * process @p to @pgid.
638 * @p contains the task_struct for process being modified.
639 * @pgid contains the new pgid.
640 * Return 0 if permission is granted.
641 * @task_getpgid:
642 * Check permission before getting the process group identifier of the
643 * process @p.
644 * @p contains the task_struct for the process.
645 * Return 0 if permission is granted.
646 * @task_getsid:
647 * Check permission before getting the session identifier of the process
648 * @p.
649 * @p contains the task_struct for the process.
650 * Return 0 if permission is granted.
David Quigleyf9008e42006-06-30 01:55:46 -0700651 * @task_getsecid:
652 * Retrieve the security identifier of the process @p.
653 * @p contains the task_struct for the process and place is into @secid.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200654 * In case of failure, @secid will be set to zero.
655 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656 * @task_setgroups:
657 * Check permission before setting the supplementary group set of the
658 * current process.
659 * @group_info contains the new group information.
660 * Return 0 if permission is granted.
661 * @task_setnice:
662 * Check permission before setting the nice value of @p to @nice.
663 * @p contains the task_struct of process.
664 * @nice contains the new nice value.
665 * Return 0 if permission is granted.
James Morris03e68062006-06-23 02:03:58 -0700666 * @task_setioprio
667 * Check permission before setting the ioprio value of @p to @ioprio.
668 * @p contains the task_struct of process.
669 * @ioprio contains the new ioprio value
670 * Return 0 if permission is granted.
David Quigleya1836a42006-06-30 01:55:49 -0700671 * @task_getioprio
672 * Check permission before getting the ioprio value of @p.
673 * @p contains the task_struct of process.
674 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675 * @task_setrlimit:
676 * Check permission before setting the resource limits of the current
677 * process for @resource to @new_rlim. The old resource limit values can
678 * be examined by dereferencing (current->signal->rlim + resource).
679 * @resource contains the resource whose limit is being set.
680 * @new_rlim contains the new limits for @resource.
681 * Return 0 if permission is granted.
682 * @task_setscheduler:
683 * Check permission before setting scheduling policy and/or parameters of
684 * process @p based on @policy and @lp.
685 * @p contains the task_struct for process.
686 * @policy contains the scheduling policy.
687 * @lp contains the scheduling parameters.
688 * Return 0 if permission is granted.
689 * @task_getscheduler:
690 * Check permission before obtaining scheduling information for process
691 * @p.
692 * @p contains the task_struct for process.
693 * Return 0 if permission is granted.
David Quigley35601542006-06-23 02:04:01 -0700694 * @task_movememory
695 * Check permission before moving memory owned by process @p.
696 * @p contains the task_struct for process.
697 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698 * @task_kill:
699 * Check permission before sending signal @sig to @p. @info can be NULL,
700 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
701 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
702 * from the kernel and should typically be permitted.
703 * SIGIO signals are handled separately by the send_sigiotask hook in
704 * file_security_ops.
705 * @p contains the task_struct for process.
706 * @info contains the signal information.
707 * @sig contains the signal value.
David Quigleyf9008e42006-06-30 01:55:46 -0700708 * @secid contains the sid of the process where the signal originated
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709 * Return 0 if permission is granted.
710 * @task_wait:
711 * Check permission before allowing a process to reap a child process @p
712 * and collect its status information.
713 * @p contains the task_struct for process.
714 * Return 0 if permission is granted.
715 * @task_prctl:
716 * Check permission before performing a process control operation on the
717 * current process.
718 * @option contains the operation.
719 * @arg2 contains a argument.
720 * @arg3 contains a argument.
721 * @arg4 contains a argument.
722 * @arg5 contains a argument.
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -0700723 * @rc_p contains a pointer to communicate back the forced return code
724 * Return 0 if permission is granted, and non-zero if the security module
725 * has taken responsibility (setting *rc_p) for the prctl call.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 * @task_reparent_to_init:
Eric Paris7b41b172008-04-23 14:10:25 -0400727 * Set the security attributes in @p->security for a kernel thread that
728 * is being reparented to the init task.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 * @p contains the task_struct for the kernel thread.
730 * @task_to_inode:
Eric Paris7b41b172008-04-23 14:10:25 -0400731 * Set the security attributes for an inode based on an associated task's
732 * security attributes, e.g. for /proc/pid inodes.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733 * @p contains the task_struct for the task.
734 * @inode contains the inode structure for the inode.
735 *
736 * Security hooks for Netlink messaging.
737 *
738 * @netlink_send:
739 * Save security information for a netlink message so that permission
740 * checking can be performed when the message is processed. The security
741 * information can be saved using the eff_cap field of the
Eric Paris7b41b172008-04-23 14:10:25 -0400742 * netlink_skb_parms structure. Also may be used to provide fine
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 * grained control over message transmission.
744 * @sk associated sock of task sending the message.,
745 * @skb contains the sk_buff structure for the netlink message.
746 * Return 0 if the information was successfully saved and message
747 * is allowed to be transmitted.
748 * @netlink_recv:
749 * Check permission before processing the received netlink message in
750 * @skb.
751 * @skb contains the sk_buff structure for the netlink message.
Darrel Goeddelc7bdb542006-06-27 13:26:11 -0700752 * @cap indicates the capability required
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753 * Return 0 if permission is granted.
754 *
755 * Security hooks for Unix domain networking.
756 *
757 * @unix_stream_connect:
758 * Check permissions before establishing a Unix domain stream connection
759 * between @sock and @other.
760 * @sock contains the socket structure.
761 * @other contains the peer socket structure.
762 * Return 0 if permission is granted.
763 * @unix_may_send:
764 * Check permissions before connecting or sending datagrams from @sock to
765 * @other.
766 * @sock contains the socket structure.
767 * @sock contains the peer socket structure.
768 * Return 0 if permission is granted.
769 *
770 * The @unix_stream_connect and @unix_may_send hooks were necessary because
771 * Linux provides an alternative to the conventional file name space for Unix
772 * domain sockets. Whereas binding and connecting to sockets in the file name
773 * space is mediated by the typical file permissions (and caught by the mknod
774 * and permission hooks in inode_security_ops), binding and connecting to
775 * sockets in the abstract name space is completely unmediated. Sufficient
776 * control of Unix domain sockets in the abstract name space isn't possible
777 * using only the socket layer hooks, since we need to know the actual target
778 * socket, which is not looked up until we are inside the af_unix code.
779 *
780 * Security hooks for socket operations.
781 *
782 * @socket_create:
783 * Check permissions prior to creating a new socket.
784 * @family contains the requested protocol family.
785 * @type contains the requested communications type.
786 * @protocol contains the requested protocol.
787 * @kern set to 1 if a kernel socket.
788 * Return 0 if permission is granted.
789 * @socket_post_create:
790 * This hook allows a module to update or allocate a per-socket security
791 * structure. Note that the security field was not added directly to the
792 * socket structure, but rather, the socket security information is stored
793 * in the associated inode. Typically, the inode alloc_security hook will
794 * allocate and and attach security information to
795 * sock->inode->i_security. This hook may be used to update the
796 * sock->inode->i_security field with additional information that wasn't
797 * available when the inode was allocated.
798 * @sock contains the newly created socket structure.
799 * @family contains the requested protocol family.
800 * @type contains the requested communications type.
801 * @protocol contains the requested protocol.
802 * @kern set to 1 if a kernel socket.
803 * @socket_bind:
804 * Check permission before socket protocol layer bind operation is
805 * performed and the socket @sock is bound to the address specified in the
806 * @address parameter.
807 * @sock contains the socket structure.
808 * @address contains the address to bind to.
809 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400810 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811 * @socket_connect:
812 * Check permission before socket protocol layer connect operation
813 * attempts to connect socket @sock to a remote address, @address.
814 * @sock contains the socket structure.
815 * @address contains the address of remote endpoint.
816 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400817 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818 * @socket_listen:
819 * Check permission before socket protocol layer listen operation.
820 * @sock contains the socket structure.
821 * @backlog contains the maximum length for the pending connection queue.
822 * Return 0 if permission is granted.
823 * @socket_accept:
824 * Check permission before accepting a new connection. Note that the new
825 * socket, @newsock, has been created and some information copied to it,
826 * but the accept operation has not actually been performed.
827 * @sock contains the listening socket structure.
828 * @newsock contains the newly created server socket for connection.
829 * Return 0 if permission is granted.
830 * @socket_post_accept:
831 * This hook allows a security module to copy security
832 * information into the newly created socket's inode.
833 * @sock contains the listening socket structure.
834 * @newsock contains the newly created server socket for connection.
835 * @socket_sendmsg:
836 * Check permission before transmitting a message to another socket.
837 * @sock contains the socket structure.
838 * @msg contains the message to be transmitted.
839 * @size contains the size of message.
840 * Return 0 if permission is granted.
841 * @socket_recvmsg:
842 * Check permission before receiving a message from a socket.
843 * @sock contains the socket structure.
844 * @msg contains the message structure.
845 * @size contains the size of message structure.
846 * @flags contains the operational flags.
Eric Paris7b41b172008-04-23 14:10:25 -0400847 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848 * @socket_getsockname:
849 * Check permission before the local address (name) of the socket object
850 * @sock is retrieved.
851 * @sock contains the socket structure.
852 * Return 0 if permission is granted.
853 * @socket_getpeername:
854 * Check permission before the remote address (name) of a socket object
855 * @sock is retrieved.
856 * @sock contains the socket structure.
857 * Return 0 if permission is granted.
858 * @socket_getsockopt:
859 * Check permissions before retrieving the options associated with socket
860 * @sock.
861 * @sock contains the socket structure.
862 * @level contains the protocol level to retrieve option from.
863 * @optname contains the name of option to retrieve.
864 * Return 0 if permission is granted.
865 * @socket_setsockopt:
866 * Check permissions before setting the options associated with socket
867 * @sock.
868 * @sock contains the socket structure.
869 * @level contains the protocol level to set options for.
870 * @optname contains the name of the option to set.
Eric Paris7b41b172008-04-23 14:10:25 -0400871 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872 * @socket_shutdown:
873 * Checks permission before all or part of a connection on the socket
874 * @sock is shut down.
875 * @sock contains the socket structure.
876 * @how contains the flag indicating how future sends and receives are handled.
877 * Return 0 if permission is granted.
878 * @socket_sock_rcv_skb:
879 * Check permissions on incoming network packets. This hook is distinct
880 * from Netfilter's IP input hooks since it is the first time that the
881 * incoming sk_buff @skb has been associated with a particular socket, @sk.
882 * @sk contains the sock (not socket) associated with the incoming sk_buff.
883 * @skb contains the incoming network data.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200884 * @socket_getpeersec_stream:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885 * This hook allows the security module to provide peer socket security
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200886 * state for unix or connected tcp sockets to userspace via getsockopt
887 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
888 * socket is associated with an ipsec SA.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889 * @sock is the local socket.
890 * @optval userspace memory where the security state is to be copied.
891 * @optlen userspace int where the module should copy the actual length
892 * of the security state.
893 * @len as input is the maximum length to copy to userspace provided
894 * by the caller.
895 * Return 0 if all is well, otherwise, typical getsockopt return
896 * values.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200897 * @socket_getpeersec_dgram:
Eric Paris7b41b172008-04-23 14:10:25 -0400898 * This hook allows the security module to provide peer socket security
899 * state for udp sockets on a per-packet basis to userspace via
900 * getsockopt SO_GETPEERSEC. The application must first have indicated
901 * the IP_PASSSEC option via getsockopt. It can then retrieve the
902 * security state returned by this hook for a packet via the SCM_SECURITY
903 * ancillary message type.
904 * @skb is the skbuff for the packet being queried
905 * @secdata is a pointer to a buffer in which to copy the security data
906 * @seclen is the maximum length for @secdata
907 * Return 0 on success, error on failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908 * @sk_alloc_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400909 * Allocate and attach a security structure to the sk->sk_security field,
910 * which is used to copy security attributes between local stream sockets.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911 * @sk_free_security:
912 * Deallocate security structure.
Venkat Yekkirala892c1412006-08-04 23:08:56 -0700913 * @sk_clone_security:
914 * Clone/copy security structure.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700915 * @sk_getsecid:
916 * Retrieve the LSM-specific secid for the sock to enable caching of network
Trent Jaegerdf718372005-12-13 23:12:27 -0800917 * authorizations.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700918 * @sock_graft:
919 * Sets the socket's isec sid to the sock's sid.
920 * @inet_conn_request:
921 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
922 * @inet_csk_clone:
923 * Sets the new child socket's sid to the openreq sid.
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600924 * @inet_conn_established:
Eric Paris7b41b172008-04-23 14:10:25 -0400925 * Sets the connection's peersid to the secmark on skb.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700926 * @req_classify_flow:
927 * Sets the flow's sid to the openreq sid.
Trent Jaegerdf718372005-12-13 23:12:27 -0800928 *
929 * Security hooks for XFRM operations.
930 *
931 * @xfrm_policy_alloc_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700932 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
933 * Database used by the XFRM system.
Trent Jaegerdf718372005-12-13 23:12:27 -0800934 * @sec_ctx contains the security context information being provided by
935 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700936 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600937 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -0800938 * Return 0 if operation was successful (memory to allocate, legal context)
939 * @xfrm_policy_clone_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700940 * @old_ctx contains an existing xfrm_sec_ctx.
941 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
942 * Allocate a security structure in new_ctxp that contains the
943 * information from the old_ctx structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800944 * Return 0 if operation was successful (memory to allocate).
945 * @xfrm_policy_free_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700946 * @ctx contains the xfrm_sec_ctx
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700947 * Deallocate xp->security.
948 * @xfrm_policy_delete_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700949 * @ctx contains the xfrm_sec_ctx.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700950 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800951 * @xfrm_state_alloc_security:
952 * @x contains the xfrm_state being added to the Security Association
953 * Database by the XFRM system.
954 * @sec_ctx contains the security context information being provided by
955 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700956 * @secid contains the secid from which to take the mls portion of the context.
957 * Allocate a security structure to the x->security field; the security
958 * field is initialized to NULL when the xfrm_state is allocated. Set the
959 * context to correspond to either sec_ctx or polsec, with the mls portion
960 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -0800961 * Return 0 if operation was successful (memory to allocate, legal context).
962 * @xfrm_state_free_security:
963 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700964 * Deallocate x->security.
965 * @xfrm_state_delete_security:
966 * @x contains the xfrm_state.
967 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800968 * @xfrm_policy_lookup:
Paul Moore03e1ad72008-04-12 19:07:52 -0700969 * @ctx contains the xfrm_sec_ctx for which the access control is being
Trent Jaegerdf718372005-12-13 23:12:27 -0800970 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700971 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -0800972 * access to the policy xp.
973 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700974 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -0800975 * XFRMs on a packet. The hook is called when selecting either a
976 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -0500977 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
978 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700979 * @xfrm_state_pol_flow_match:
980 * @x contains the state to match.
981 * @xp contains the policy to check for a match.
982 * @fl contains the flow to check for a match.
983 * Return 1 if there is a match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700984 * @xfrm_decode_session:
985 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700986 * @secid points to the flow key secid to set.
987 * @ckall says if all xfrms used should be checked for same secid.
988 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989 *
David Howells29db9192005-10-30 15:02:44 -0800990 * Security hooks affecting all Key Management operations
991 *
992 * @key_alloc:
993 * Permit allocation of a key and assign security data. Note that key does
994 * not have a serial number assigned at this point.
995 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -0700996 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -0800997 * Return 0 if permission is granted, -ve error otherwise.
998 * @key_free:
999 * Notification of destruction; free security data.
1000 * @key points to the key.
1001 * No return value.
1002 * @key_permission:
1003 * See whether a specific operational right is granted to a process on a
Eric Paris7b41b172008-04-23 14:10:25 -04001004 * key.
David Howells29db9192005-10-30 15:02:44 -08001005 * @key_ref refers to the key (key pointer + possession attribute bit).
1006 * @context points to the process to provide the context against which to
Eric Paris7b41b172008-04-23 14:10:25 -04001007 * evaluate the security data on the key.
David Howells29db9192005-10-30 15:02:44 -08001008 * @perm describes the combination of permissions required of this key.
1009 * Return 1 if permission granted, 0 if permission denied and -ve it the
Eric Paris7b41b172008-04-23 14:10:25 -04001010 * normal permissions model should be effected.
David Howells29db9192005-10-30 15:02:44 -08001011 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012 * Security hooks affecting all System V IPC operations.
1013 *
1014 * @ipc_permission:
1015 * Check permissions for access to IPC
1016 * @ipcp contains the kernel IPC permission structure
1017 * @flag contains the desired (requested) permission set
1018 * Return 0 if permission is granted.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001019 * @ipc_getsecid:
1020 * Get the secid associated with the ipc object.
1021 * @ipcp contains the kernel IPC permission structure.
1022 * @secid contains a pointer to the location where result will be saved.
1023 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024 *
1025 * Security hooks for individual messages held in System V IPC message queues
1026 * @msg_msg_alloc_security:
1027 * Allocate and attach a security structure to the msg->security field.
1028 * The security field is initialized to NULL when the structure is first
1029 * created.
1030 * @msg contains the message structure to be modified.
1031 * Return 0 if operation was successful and permission is granted.
1032 * @msg_msg_free_security:
1033 * Deallocate the security structure for this message.
1034 * @msg contains the message structure to be modified.
1035 *
1036 * Security hooks for System V IPC Message Queues
1037 *
1038 * @msg_queue_alloc_security:
1039 * Allocate and attach a security structure to the
1040 * msq->q_perm.security field. The security field is initialized to
1041 * NULL when the structure is first created.
1042 * @msq contains the message queue structure to be modified.
1043 * Return 0 if operation was successful and permission is granted.
1044 * @msg_queue_free_security:
1045 * Deallocate security structure for this message queue.
1046 * @msq contains the message queue structure to be modified.
1047 * @msg_queue_associate:
1048 * Check permission when a message queue is requested through the
1049 * msgget system call. This hook is only called when returning the
1050 * message queue identifier for an existing message queue, not when a
1051 * new message queue is created.
1052 * @msq contains the message queue to act upon.
1053 * @msqflg contains the operation control flags.
1054 * Return 0 if permission is granted.
1055 * @msg_queue_msgctl:
1056 * Check permission when a message control operation specified by @cmd
1057 * is to be performed on the message queue @msq.
1058 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1059 * @msq contains the message queue to act upon. May be NULL.
1060 * @cmd contains the operation to be performed.
Eric Paris7b41b172008-04-23 14:10:25 -04001061 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062 * @msg_queue_msgsnd:
1063 * Check permission before a message, @msg, is enqueued on the message
1064 * queue, @msq.
1065 * @msq contains the message queue to send message to.
1066 * @msg contains the message to be enqueued.
1067 * @msqflg contains operational flags.
1068 * Return 0 if permission is granted.
1069 * @msg_queue_msgrcv:
1070 * Check permission before a message, @msg, is removed from the message
Eric Paris7b41b172008-04-23 14:10:25 -04001071 * queue, @msq. The @target task structure contains a pointer to the
1072 * process that will be receiving the message (not equal to the current
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073 * process when inline receives are being performed).
1074 * @msq contains the message queue to retrieve message from.
1075 * @msg contains the message destination.
1076 * @target contains the task structure for recipient process.
1077 * @type contains the type of message requested.
1078 * @mode contains the operational flags.
1079 * Return 0 if permission is granted.
1080 *
1081 * Security hooks for System V Shared Memory Segments
1082 *
1083 * @shm_alloc_security:
1084 * Allocate and attach a security structure to the shp->shm_perm.security
1085 * field. The security field is initialized to NULL when the structure is
1086 * first created.
1087 * @shp contains the shared memory structure to be modified.
1088 * Return 0 if operation was successful and permission is granted.
1089 * @shm_free_security:
1090 * Deallocate the security struct for this memory segment.
1091 * @shp contains the shared memory structure to be modified.
1092 * @shm_associate:
1093 * Check permission when a shared memory region is requested through the
1094 * shmget system call. This hook is only called when returning the shared
1095 * memory region identifier for an existing region, not when a new shared
1096 * memory region is created.
1097 * @shp contains the shared memory structure to be modified.
1098 * @shmflg contains the operation control flags.
1099 * Return 0 if permission is granted.
1100 * @shm_shmctl:
1101 * Check permission when a shared memory control operation specified by
1102 * @cmd is to be performed on the shared memory region @shp.
1103 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1104 * @shp contains shared memory structure to be modified.
1105 * @cmd contains the operation to be performed.
1106 * Return 0 if permission is granted.
1107 * @shm_shmat:
1108 * Check permissions prior to allowing the shmat system call to attach the
1109 * shared memory segment @shp to the data segment of the calling process.
1110 * The attaching address is specified by @shmaddr.
1111 * @shp contains the shared memory structure to be modified.
1112 * @shmaddr contains the address to attach memory region to.
1113 * @shmflg contains the operational flags.
1114 * Return 0 if permission is granted.
1115 *
1116 * Security hooks for System V Semaphores
1117 *
1118 * @sem_alloc_security:
1119 * Allocate and attach a security structure to the sma->sem_perm.security
1120 * field. The security field is initialized to NULL when the structure is
1121 * first created.
1122 * @sma contains the semaphore structure
1123 * Return 0 if operation was successful and permission is granted.
1124 * @sem_free_security:
1125 * deallocate security struct for this semaphore
1126 * @sma contains the semaphore structure.
1127 * @sem_associate:
1128 * Check permission when a semaphore is requested through the semget
1129 * system call. This hook is only called when returning the semaphore
1130 * identifier for an existing semaphore, not when a new one must be
1131 * created.
1132 * @sma contains the semaphore structure.
1133 * @semflg contains the operation control flags.
1134 * Return 0 if permission is granted.
1135 * @sem_semctl:
1136 * Check permission when a semaphore operation specified by @cmd is to be
Eric Paris7b41b172008-04-23 14:10:25 -04001137 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138 * IPC_INFO or SEM_INFO.
1139 * @sma contains the semaphore structure. May be NULL.
1140 * @cmd contains the operation to be performed.
1141 * Return 0 if permission is granted.
1142 * @sem_semop
1143 * Check permissions before performing operations on members of the
Eric Paris7b41b172008-04-23 14:10:25 -04001144 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1145 * may be modified.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146 * @sma contains the semaphore structure.
1147 * @sops contains the operations to perform.
1148 * @nsops contains the number of operations to perform.
1149 * @alter contains the flag indicating whether changes are to be made.
1150 * Return 0 if permission is granted.
1151 *
1152 * @ptrace:
1153 * Check permission before allowing the @parent process to trace the
1154 * @child process.
1155 * Security modules may also want to perform a process tracing check
1156 * during an execve in the set_security or apply_creds hooks of
1157 * binprm_security_ops if the process is being traced and its security
1158 * attributes would be changed by the execve.
1159 * @parent contains the task_struct structure for parent process.
1160 * @child contains the task_struct structure for child process.
1161 * Return 0 if permission is granted.
1162 * @capget:
1163 * Get the @effective, @inheritable, and @permitted capability sets for
1164 * the @target process. The hook may also perform permission checking to
1165 * determine if the current process is allowed to see the capability sets
1166 * of the @target process.
1167 * @target contains the task_struct structure for target process.
1168 * @effective contains the effective capability set.
1169 * @inheritable contains the inheritable capability set.
1170 * @permitted contains the permitted capability set.
1171 * Return 0 if the capability sets were successfully obtained.
1172 * @capset_check:
1173 * Check permission before setting the @effective, @inheritable, and
1174 * @permitted capability sets for the @target process.
1175 * Caveat: @target is also set to current if a set of processes is
1176 * specified (i.e. all processes other than current and init or a
1177 * particular process group). Hence, the capset_set hook may need to
1178 * revalidate permission to the actual target process.
1179 * @target contains the task_struct structure for target process.
1180 * @effective contains the effective capability set.
1181 * @inheritable contains the inheritable capability set.
1182 * @permitted contains the permitted capability set.
1183 * Return 0 if permission is granted.
1184 * @capset_set:
1185 * Set the @effective, @inheritable, and @permitted capability sets for
1186 * the @target process. Since capset_check cannot always check permission
1187 * to the real @target process, this hook may also perform permission
1188 * checking to determine if the current process is allowed to set the
1189 * capability sets of the @target process. However, this hook has no way
1190 * of returning an error due to the structure of the sys_capset code.
1191 * @target contains the task_struct structure for target process.
1192 * @effective contains the effective capability set.
1193 * @inheritable contains the inheritable capability set.
1194 * @permitted contains the permitted capability set.
Chris Wright12b59892006-03-25 03:07:41 -08001195 * @capable:
1196 * Check whether the @tsk process has the @cap capability.
1197 * @tsk contains the task_struct for the process.
1198 * @cap contains the capability <include/linux/capability.h>.
1199 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200 * @acct:
1201 * Check permission before enabling or disabling process accounting. If
1202 * accounting is being enabled, then @file refers to the open file used to
1203 * store accounting records. If accounting is being disabled, then @file
1204 * is NULL.
1205 * @file contains the file structure for the accounting file (may be NULL).
1206 * Return 0 if permission is granted.
1207 * @sysctl:
1208 * Check permission before accessing the @table sysctl variable in the
1209 * manner specified by @op.
1210 * @table contains the ctl_table structure for the sysctl variable.
1211 * @op contains the operation (001 = search, 002 = write, 004 = read).
1212 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213 * @syslog:
1214 * Check permission before accessing the kernel message ring or changing
1215 * logging to the console.
Eric Paris7b41b172008-04-23 14:10:25 -04001216 * See the syslog(2) manual page for an explanation of the @type values.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217 * @type contains the type of action.
1218 * Return 0 if permission is granted.
1219 * @settime:
1220 * Check permission to change the system time.
1221 * struct timespec and timezone are defined in include/linux/time.h
1222 * @ts contains new time
1223 * @tz contains new timezone
1224 * Return 0 if permission is granted.
1225 * @vm_enough_memory:
1226 * Check permissions for allocating a new virtual mapping.
Alan Cox34b4e4a2007-08-22 14:01:28 -07001227 * @mm contains the mm struct it is being added to.
Eric Paris7b41b172008-04-23 14:10:25 -04001228 * @pages contains the number of pages.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 * Return 0 if permission is granted.
1230 *
1231 * @register_security:
Eric Paris7b41b172008-04-23 14:10:25 -04001232 * allow module stacking.
1233 * @name contains the name of the security module being stacked.
1234 * @ops contains a pointer to the struct security_operations of the module to stack.
1235 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001236 * @secid_to_secctx:
1237 * Convert secid to security context.
1238 * @secid contains the security ID.
1239 * @secdata contains the pointer that stores the converted security context.
David Howells63cb3442008-01-15 23:47:35 +00001240 * @secctx_to_secid:
Eric Paris7b41b172008-04-23 14:10:25 -04001241 * Convert security context to secid.
1242 * @secid contains the pointer to the generated security ID.
1243 * @secdata contains the security context.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001244 *
1245 * @release_secctx:
1246 * Release the security context.
1247 * @secdata contains the security context.
1248 * @seclen contains the length of the security context.
1249 *
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001250 * Security hooks for Audit
1251 *
1252 * @audit_rule_init:
1253 * Allocate and initialize an LSM audit rule structure.
1254 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1255 * @op contains the operator the rule uses.
1256 * @rulestr contains the context where the rule will be applied to.
1257 * @lsmrule contains a pointer to receive the result.
1258 * Return 0 if @lsmrule has been successfully set,
1259 * -EINVAL in case of an invalid rule.
1260 *
1261 * @audit_rule_known:
1262 * Specifies whether given @rule contains any fields related to current LSM.
1263 * @rule contains the audit rule of interest.
1264 * Return 1 in case of relation found, 0 otherwise.
1265 *
1266 * @audit_rule_match:
1267 * Determine if given @secid matches a rule previously approved
1268 * by @audit_rule_known.
1269 * @secid contains the security id in question.
1270 * @field contains the field which relates to current LSM.
1271 * @op contains the operator that will be used for matching.
1272 * @rule points to the audit rule that will be checked against.
1273 * @actx points to the audit context associated with the check.
1274 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1275 *
1276 * @audit_rule_free:
1277 * Deallocate the LSM audit rule structure previously allocated by
1278 * audit_rule_init.
1279 * @rule contains the allocated rule
1280 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281 * This is the main security structure.
1282 */
1283struct security_operations {
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001284 char name[SECURITY_NAME_MAX + 1];
1285
Eric Paris7b41b172008-04-23 14:10:25 -04001286 int (*ptrace) (struct task_struct *parent, struct task_struct *child);
1287 int (*capget) (struct task_struct *target,
1288 kernel_cap_t *effective,
1289 kernel_cap_t *inheritable, kernel_cap_t *permitted);
1290 int (*capset_check) (struct task_struct *target,
1291 kernel_cap_t *effective,
1292 kernel_cap_t *inheritable,
1293 kernel_cap_t *permitted);
1294 void (*capset_set) (struct task_struct *target,
1295 kernel_cap_t *effective,
1296 kernel_cap_t *inheritable,
1297 kernel_cap_t *permitted);
1298 int (*capable) (struct task_struct *tsk, int cap);
1299 int (*acct) (struct file *file);
1300 int (*sysctl) (struct ctl_table *table, int op);
1301 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1302 int (*quota_on) (struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303 int (*syslog) (int type);
1304 int (*settime) (struct timespec *ts, struct timezone *tz);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001305 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306
Eric Paris7b41b172008-04-23 14:10:25 -04001307 int (*bprm_alloc_security) (struct linux_binprm *bprm);
1308 void (*bprm_free_security) (struct linux_binprm *bprm);
1309 void (*bprm_apply_creds) (struct linux_binprm *bprm, int unsafe);
1310 void (*bprm_post_apply_creds) (struct linux_binprm *bprm);
1311 int (*bprm_set_security) (struct linux_binprm *bprm);
1312 int (*bprm_check_security) (struct linux_binprm *bprm);
1313 int (*bprm_secureexec) (struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314
Eric Paris7b41b172008-04-23 14:10:25 -04001315 int (*sb_alloc_security) (struct super_block *sb);
1316 void (*sb_free_security) (struct super_block *sb);
1317 int (*sb_copy_data) (char *orig, char *copy);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318 int (*sb_kern_mount) (struct super_block *sb, void *data);
David Howells726c3342006-06-23 02:02:58 -07001319 int (*sb_statfs) (struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001320 int (*sb_mount) (char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321 char *type, unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001322 int (*sb_check_sb) (struct vfsmount *mnt, struct path *path);
1323 int (*sb_umount) (struct vfsmount *mnt, int flags);
1324 void (*sb_umount_close) (struct vfsmount *mnt);
1325 void (*sb_umount_busy) (struct vfsmount *mnt);
1326 void (*sb_post_remount) (struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001328 void (*sb_post_addmount) (struct vfsmount *mnt,
Al Virob5266eb2008-03-22 17:48:24 -04001329 struct path *mountpoint);
1330 int (*sb_pivotroot) (struct path *old_path,
1331 struct path *new_path);
1332 void (*sb_post_pivotroot) (struct path *old_path,
1333 struct path *new_path);
Eric Parisc9180a52007-11-30 13:00:35 -05001334 int (*sb_get_mnt_opts) (const struct super_block *sb,
Eric Parise0007522008-03-05 10:31:54 -05001335 struct security_mnt_opts *opts);
1336 int (*sb_set_mnt_opts) (struct super_block *sb,
1337 struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001338 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1339 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001340 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341
Eric Paris7b41b172008-04-23 14:10:25 -04001342 int (*inode_alloc_security) (struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001344 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1345 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 int (*inode_create) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001347 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348 int (*inode_link) (struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001349 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1351 int (*inode_symlink) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001352 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1355 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001356 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001358 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359 int (*inode_readlink) (struct dentry *dentry);
1360 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1361 int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd);
1362 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1363 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001364 void (*inode_delete) (struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 int (*inode_setxattr) (struct dentry *dentry, char *name, void *value,
1366 size_t size, int flags);
1367 void (*inode_post_setxattr) (struct dentry *dentry, char *name, void *value,
1368 size_t size, int flags);
1369 int (*inode_getxattr) (struct dentry *dentry, char *name);
1370 int (*inode_listxattr) (struct dentry *dentry);
1371 int (*inode_removexattr) (struct dentry *dentry, char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001372 int (*inode_need_killpriv) (struct dentry *dentry);
1373 int (*inode_killpriv) (struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001374 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1375 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1376 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1377 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378
Eric Paris7b41b172008-04-23 14:10:25 -04001379 int (*file_permission) (struct file *file, int mask);
1380 int (*file_alloc_security) (struct file *file);
1381 void (*file_free_security) (struct file *file);
1382 int (*file_ioctl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001384 int (*file_mmap) (struct file *file,
Eric Parised032182007-06-28 15:55:21 -04001385 unsigned long reqprot, unsigned long prot,
1386 unsigned long flags, unsigned long addr,
1387 unsigned long addr_only);
Eric Paris7b41b172008-04-23 14:10:25 -04001388 int (*file_mprotect) (struct vm_area_struct *vma,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389 unsigned long reqprot,
1390 unsigned long prot);
Eric Paris7b41b172008-04-23 14:10:25 -04001391 int (*file_lock) (struct file *file, unsigned int cmd);
1392 int (*file_fcntl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001394 int (*file_set_fowner) (struct file *file);
1395 int (*file_send_sigiotask) (struct task_struct *tsk,
1396 struct fown_struct *fown, int sig);
1397 int (*file_receive) (struct file *file);
1398 int (*dentry_open) (struct file *file);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399
1400 int (*task_create) (unsigned long clone_flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001401 int (*task_alloc_security) (struct task_struct *p);
1402 void (*task_free_security) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1404 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1405 uid_t old_euid, uid_t old_suid, int flags);
1406 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001407 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1408 int (*task_getpgid) (struct task_struct *p);
1409 int (*task_getsid) (struct task_struct *p);
1410 void (*task_getsecid) (struct task_struct *p, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411 int (*task_setgroups) (struct group_info *group_info);
Eric Paris7b41b172008-04-23 14:10:25 -04001412 int (*task_setnice) (struct task_struct *p, int nice);
1413 int (*task_setioprio) (struct task_struct *p, int ioprio);
1414 int (*task_getioprio) (struct task_struct *p);
1415 int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim);
1416 int (*task_setscheduler) (struct task_struct *p, int policy,
1417 struct sched_param *lp);
1418 int (*task_getscheduler) (struct task_struct *p);
1419 int (*task_movememory) (struct task_struct *p);
1420 int (*task_kill) (struct task_struct *p,
1421 struct siginfo *info, int sig, u32 secid);
1422 int (*task_wait) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423 int (*task_prctl) (int option, unsigned long arg2,
1424 unsigned long arg3, unsigned long arg4,
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -07001425 unsigned long arg5, long *rc_p);
Eric Paris7b41b172008-04-23 14:10:25 -04001426 void (*task_reparent_to_init) (struct task_struct *p);
1427 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428
Eric Paris7b41b172008-04-23 14:10:25 -04001429 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001430 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001431
Eric Paris7b41b172008-04-23 14:10:25 -04001432 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1433 void (*msg_msg_free_security) (struct msg_msg *msg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434
Eric Paris7b41b172008-04-23 14:10:25 -04001435 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1436 void (*msg_queue_free_security) (struct msg_queue *msq);
1437 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1438 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1439 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1440 struct msg_msg *msg, int msqflg);
1441 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1442 struct msg_msg *msg,
1443 struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 long type, int mode);
1445
Eric Paris7b41b172008-04-23 14:10:25 -04001446 int (*shm_alloc_security) (struct shmid_kernel *shp);
1447 void (*shm_free_security) (struct shmid_kernel *shp);
1448 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1449 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1450 int (*shm_shmat) (struct shmid_kernel *shp,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451 char __user *shmaddr, int shmflg);
1452
Eric Paris7b41b172008-04-23 14:10:25 -04001453 int (*sem_alloc_security) (struct sem_array *sma);
1454 void (*sem_free_security) (struct sem_array *sma);
1455 int (*sem_associate) (struct sem_array *sma, int semflg);
1456 int (*sem_semctl) (struct sem_array *sma, int cmd);
1457 int (*sem_semop) (struct sem_array *sma,
1458 struct sembuf *sops, unsigned nsops, int alter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459
Eric Paris7b41b172008-04-23 14:10:25 -04001460 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1461 int (*netlink_recv) (struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462
1463 /* allow module stacking */
1464 int (*register_security) (const char *name,
Eric Paris7b41b172008-04-23 14:10:25 -04001465 struct security_operations *ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466
1467 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1468
Eric Paris7b41b172008-04-23 14:10:25 -04001469 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1470 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1471 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
1472 int (*secctx_to_secid) (char *secdata, u32 seclen, u32 *secid);
1473 void (*release_secctx) (char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474
1475#ifdef CONFIG_SECURITY_NETWORK
Eric Paris7b41b172008-04-23 14:10:25 -04001476 int (*unix_stream_connect) (struct socket *sock,
1477 struct socket *other, struct sock *newsk);
1478 int (*unix_may_send) (struct socket *sock, struct socket *other);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479
1480 int (*socket_create) (int family, int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001481 int (*socket_post_create) (struct socket *sock, int family,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001482 int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001483 int (*socket_bind) (struct socket *sock,
1484 struct sockaddr *address, int addrlen);
1485 int (*socket_connect) (struct socket *sock,
1486 struct sockaddr *address, int addrlen);
1487 int (*socket_listen) (struct socket *sock, int backlog);
1488 int (*socket_accept) (struct socket *sock, struct socket *newsock);
1489 void (*socket_post_accept) (struct socket *sock,
1490 struct socket *newsock);
1491 int (*socket_sendmsg) (struct socket *sock,
1492 struct msghdr *msg, int size);
1493 int (*socket_recvmsg) (struct socket *sock,
1494 struct msghdr *msg, int size, int flags);
1495 int (*socket_getsockname) (struct socket *sock);
1496 int (*socket_getpeername) (struct socket *sock);
1497 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1498 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1499 int (*socket_shutdown) (struct socket *sock, int how);
1500 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001501 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001502 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001503 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001505 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001506 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001507 void (*sock_graft) (struct sock *sk, struct socket *parent);
1508 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1509 struct request_sock *req);
1510 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1511 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1512 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001514
Trent Jaegerdf718372005-12-13 23:12:27 -08001515#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moore03e1ad72008-04-12 19:07:52 -07001516 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001517 struct xfrm_user_sec_ctx *sec_ctx);
Paul Moore03e1ad72008-04-12 19:07:52 -07001518 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1519 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1520 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001521 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001522 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001523 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001524 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001525 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Eric Paris7b41b172008-04-23 14:10:25 -04001526 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1527 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1528 struct xfrm_policy *xp,
1529 struct flowi *fl);
1530 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001531#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1532
David Howells29db9192005-10-30 15:02:44 -08001533 /* key management security hooks */
1534#ifdef CONFIG_KEYS
Eric Paris7b41b172008-04-23 14:10:25 -04001535 int (*key_alloc) (struct key *key, struct task_struct *tsk, unsigned long flags);
1536 void (*key_free) (struct key *key);
1537 int (*key_permission) (key_ref_t key_ref,
1538 struct task_struct *context,
1539 key_perm_t perm);
David Howells29db9192005-10-30 15:02:44 -08001540
1541#endif /* CONFIG_KEYS */
1542
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001543#ifdef CONFIG_AUDIT
Eric Paris7b41b172008-04-23 14:10:25 -04001544 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1545 int (*audit_rule_known) (struct audit_krule *krule);
1546 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1547 struct audit_context *actx);
1548 void (*audit_rule_free) (void *lsmrule);
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001549#endif /* CONFIG_AUDIT */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001550};
1551
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552/* prototypes */
Eric Paris7b41b172008-04-23 14:10:25 -04001553extern int security_init(void);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001554extern int security_module_enable(struct security_operations *ops);
Eric Paris7b41b172008-04-23 14:10:25 -04001555extern int register_security(struct security_operations *ops);
1556extern int mod_reg_security(const char *name, struct security_operations *ops);
Greg KHb67dbf92005-07-07 14:37:53 -07001557extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
1558 struct dentry *parent, void *data,
Arjan van de Ven54047322007-02-12 00:55:28 -08001559 const struct file_operations *fops);
Greg KHb67dbf92005-07-07 14:37:53 -07001560extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1561extern void securityfs_remove(struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001562
James Morris20510f22007-10-16 23:31:32 -07001563/* Security operations */
1564int security_ptrace(struct task_struct *parent, struct task_struct *child);
1565int security_capget(struct task_struct *target,
Eric Paris7b41b172008-04-23 14:10:25 -04001566 kernel_cap_t *effective,
1567 kernel_cap_t *inheritable,
1568 kernel_cap_t *permitted);
James Morris20510f22007-10-16 23:31:32 -07001569int security_capset_check(struct task_struct *target,
James Morris20510f22007-10-16 23:31:32 -07001570 kernel_cap_t *effective,
1571 kernel_cap_t *inheritable,
1572 kernel_cap_t *permitted);
Eric Paris7b41b172008-04-23 14:10:25 -04001573void security_capset_set(struct task_struct *target,
1574 kernel_cap_t *effective,
1575 kernel_cap_t *inheritable,
1576 kernel_cap_t *permitted);
James Morris20510f22007-10-16 23:31:32 -07001577int security_capable(struct task_struct *tsk, int cap);
1578int security_acct(struct file *file);
1579int security_sysctl(struct ctl_table *table, int op);
1580int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1581int security_quota_on(struct dentry *dentry);
1582int security_syslog(int type);
1583int security_settime(struct timespec *ts, struct timezone *tz);
1584int security_vm_enough_memory(long pages);
1585int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
1586int security_bprm_alloc(struct linux_binprm *bprm);
1587void security_bprm_free(struct linux_binprm *bprm);
1588void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
1589void security_bprm_post_apply_creds(struct linux_binprm *bprm);
1590int security_bprm_set(struct linux_binprm *bprm);
1591int security_bprm_check(struct linux_binprm *bprm);
1592int security_bprm_secureexec(struct linux_binprm *bprm);
1593int security_sb_alloc(struct super_block *sb);
1594void security_sb_free(struct super_block *sb);
Eric Parise0007522008-03-05 10:31:54 -05001595int security_sb_copy_data(char *orig, char *copy);
James Morris20510f22007-10-16 23:31:32 -07001596int security_sb_kern_mount(struct super_block *sb, void *data);
1597int security_sb_statfs(struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001598int security_sb_mount(char *dev_name, struct path *path,
Eric Paris7b41b172008-04-23 14:10:25 -04001599 char *type, unsigned long flags, void *data);
Al Virob5266eb2008-03-22 17:48:24 -04001600int security_sb_check_sb(struct vfsmount *mnt, struct path *path);
James Morris20510f22007-10-16 23:31:32 -07001601int security_sb_umount(struct vfsmount *mnt, int flags);
1602void security_sb_umount_close(struct vfsmount *mnt);
1603void security_sb_umount_busy(struct vfsmount *mnt);
1604void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data);
Al Virob5266eb2008-03-22 17:48:24 -04001605void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
1606int security_sb_pivotroot(struct path *old_path, struct path *new_path);
1607void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001608int security_sb_get_mnt_opts(const struct super_block *sb,
1609 struct security_mnt_opts *opts);
1610int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001611void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1612 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001613int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001614
James Morris20510f22007-10-16 23:31:32 -07001615int security_inode_alloc(struct inode *inode);
1616void security_inode_free(struct inode *inode);
1617int security_inode_init_security(struct inode *inode, struct inode *dir,
1618 char **name, void **value, size_t *len);
1619int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1620int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1621 struct dentry *new_dentry);
1622int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1623int security_inode_symlink(struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001624 const char *old_name);
James Morris20510f22007-10-16 23:31:32 -07001625int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1626int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1627int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1628int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001629 struct inode *new_dir, struct dentry *new_dentry);
James Morris20510f22007-10-16 23:31:32 -07001630int security_inode_readlink(struct dentry *dentry);
1631int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
1632int security_inode_permission(struct inode *inode, int mask, struct nameidata *nd);
1633int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1634int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
1635void security_inode_delete(struct inode *inode);
1636int security_inode_setxattr(struct dentry *dentry, char *name,
Eric Paris7b41b172008-04-23 14:10:25 -04001637 void *value, size_t size, int flags);
James Morris20510f22007-10-16 23:31:32 -07001638void security_inode_post_setxattr(struct dentry *dentry, char *name,
Eric Paris7b41b172008-04-23 14:10:25 -04001639 void *value, size_t size, int flags);
James Morris20510f22007-10-16 23:31:32 -07001640int security_inode_getxattr(struct dentry *dentry, char *name);
1641int security_inode_listxattr(struct dentry *dentry);
1642int security_inode_removexattr(struct dentry *dentry, char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001643int security_inode_need_killpriv(struct dentry *dentry);
1644int security_inode_killpriv(struct dentry *dentry);
David P. Quigley42492592008-02-04 22:29:39 -08001645int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
James Morris20510f22007-10-16 23:31:32 -07001646int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1647int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001648void security_inode_getsecid(const struct inode *inode, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001649int security_file_permission(struct file *file, int mask);
1650int security_file_alloc(struct file *file);
1651void security_file_free(struct file *file);
1652int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1653int security_file_mmap(struct file *file, unsigned long reqprot,
1654 unsigned long prot, unsigned long flags,
1655 unsigned long addr, unsigned long addr_only);
1656int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
Eric Paris7b41b172008-04-23 14:10:25 -04001657 unsigned long prot);
James Morris20510f22007-10-16 23:31:32 -07001658int security_file_lock(struct file *file, unsigned int cmd);
1659int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1660int security_file_set_fowner(struct file *file);
1661int security_file_send_sigiotask(struct task_struct *tsk,
Eric Paris7b41b172008-04-23 14:10:25 -04001662 struct fown_struct *fown, int sig);
James Morris20510f22007-10-16 23:31:32 -07001663int security_file_receive(struct file *file);
1664int security_dentry_open(struct file *file);
1665int security_task_create(unsigned long clone_flags);
1666int security_task_alloc(struct task_struct *p);
1667void security_task_free(struct task_struct *p);
1668int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
1669int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
Eric Paris7b41b172008-04-23 14:10:25 -04001670 uid_t old_suid, int flags);
James Morris20510f22007-10-16 23:31:32 -07001671int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags);
1672int security_task_setpgid(struct task_struct *p, pid_t pgid);
1673int security_task_getpgid(struct task_struct *p);
1674int security_task_getsid(struct task_struct *p);
1675void security_task_getsecid(struct task_struct *p, u32 *secid);
1676int security_task_setgroups(struct group_info *group_info);
1677int security_task_setnice(struct task_struct *p, int nice);
1678int security_task_setioprio(struct task_struct *p, int ioprio);
1679int security_task_getioprio(struct task_struct *p);
1680int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim);
1681int security_task_setscheduler(struct task_struct *p,
1682 int policy, struct sched_param *lp);
1683int security_task_getscheduler(struct task_struct *p);
1684int security_task_movememory(struct task_struct *p);
1685int security_task_kill(struct task_struct *p, struct siginfo *info,
1686 int sig, u32 secid);
1687int security_task_wait(struct task_struct *p);
1688int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -07001689 unsigned long arg4, unsigned long arg5, long *rc_p);
James Morris20510f22007-10-16 23:31:32 -07001690void security_task_reparent_to_init(struct task_struct *p);
1691void security_task_to_inode(struct task_struct *p, struct inode *inode);
1692int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001693void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001694int security_msg_msg_alloc(struct msg_msg *msg);
1695void security_msg_msg_free(struct msg_msg *msg);
1696int security_msg_queue_alloc(struct msg_queue *msq);
1697void security_msg_queue_free(struct msg_queue *msq);
1698int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1699int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1700int security_msg_queue_msgsnd(struct msg_queue *msq,
Eric Paris7b41b172008-04-23 14:10:25 -04001701 struct msg_msg *msg, int msqflg);
James Morris20510f22007-10-16 23:31:32 -07001702int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
Eric Paris7b41b172008-04-23 14:10:25 -04001703 struct task_struct *target, long type, int mode);
James Morris20510f22007-10-16 23:31:32 -07001704int security_shm_alloc(struct shmid_kernel *shp);
1705void security_shm_free(struct shmid_kernel *shp);
1706int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1707int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1708int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1709int security_sem_alloc(struct sem_array *sma);
1710void security_sem_free(struct sem_array *sma);
1711int security_sem_associate(struct sem_array *sma, int semflg);
1712int security_sem_semctl(struct sem_array *sma, int cmd);
1713int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1714 unsigned nsops, int alter);
Eric Paris7b41b172008-04-23 14:10:25 -04001715void security_d_instantiate(struct dentry *dentry, struct inode *inode);
James Morris20510f22007-10-16 23:31:32 -07001716int security_getprocattr(struct task_struct *p, char *name, char **value);
1717int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1718int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1719int security_netlink_recv(struct sk_buff *skb, int cap);
1720int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
David Howells63cb3442008-01-15 23:47:35 +00001721int security_secctx_to_secid(char *secdata, u32 seclen, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001722void security_release_secctx(char *secdata, u32 seclen);
1723
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724#else /* CONFIG_SECURITY */
Eric Parise0007522008-03-05 10:31:54 -05001725struct security_mnt_opts {
1726};
1727
1728static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1729{
1730}
1731
1732static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1733{
1734}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735
1736/*
1737 * This is the default capabilities functionality. Most of these functions
1738 * are just stubbed out, but a few must call the proper capable code.
1739 */
1740
1741static inline int security_init(void)
1742{
1743 return 0;
1744}
1745
Eric Paris7b41b172008-04-23 14:10:25 -04001746static inline int security_ptrace(struct task_struct *parent, struct task_struct *child)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747{
Eric Paris7b41b172008-04-23 14:10:25 -04001748 return cap_ptrace(parent, child);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001749}
1750
Eric Paris7b41b172008-04-23 14:10:25 -04001751static inline int security_capget(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001752 kernel_cap_t *effective,
1753 kernel_cap_t *inheritable,
1754 kernel_cap_t *permitted)
1755{
Eric Paris7b41b172008-04-23 14:10:25 -04001756 return cap_capget(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757}
1758
Eric Paris7b41b172008-04-23 14:10:25 -04001759static inline int security_capset_check(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001760 kernel_cap_t *effective,
1761 kernel_cap_t *inheritable,
1762 kernel_cap_t *permitted)
1763{
Eric Paris7b41b172008-04-23 14:10:25 -04001764 return cap_capset_check(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765}
1766
Eric Paris7b41b172008-04-23 14:10:25 -04001767static inline void security_capset_set(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768 kernel_cap_t *effective,
1769 kernel_cap_t *inheritable,
1770 kernel_cap_t *permitted)
1771{
Eric Paris7b41b172008-04-23 14:10:25 -04001772 cap_capset_set(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773}
1774
Chris Wright12b59892006-03-25 03:07:41 -08001775static inline int security_capable(struct task_struct *tsk, int cap)
1776{
1777 return cap_capable(tsk, cap);
1778}
1779
Eric Paris7b41b172008-04-23 14:10:25 -04001780static inline int security_acct(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781{
1782 return 0;
1783}
1784
1785static inline int security_sysctl(struct ctl_table *table, int op)
1786{
1787 return 0;
1788}
1789
Eric Paris7b41b172008-04-23 14:10:25 -04001790static inline int security_quotactl(int cmds, int type, int id,
1791 struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792{
1793 return 0;
1794}
1795
Eric Paris7b41b172008-04-23 14:10:25 -04001796static inline int security_quota_on(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797{
1798 return 0;
1799}
1800
1801static inline int security_syslog(int type)
1802{
1803 return cap_syslog(type);
1804}
1805
1806static inline int security_settime(struct timespec *ts, struct timezone *tz)
1807{
1808 return cap_settime(ts, tz);
1809}
1810
1811static inline int security_vm_enough_memory(long pages)
1812{
Alan Cox34b4e4a2007-08-22 14:01:28 -07001813 return cap_vm_enough_memory(current->mm, pages);
1814}
1815
1816static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1817{
1818 return cap_vm_enough_memory(mm, pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819}
1820
Eric Paris7b41b172008-04-23 14:10:25 -04001821static inline int security_bprm_alloc(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822{
1823 return 0;
1824}
1825
Eric Paris7b41b172008-04-23 14:10:25 -04001826static inline void security_bprm_free(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001827{ }
1828
Eric Paris7b41b172008-04-23 14:10:25 -04001829static inline void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
1830{
1831 cap_bprm_apply_creds(bprm, unsafe);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832}
1833
Eric Paris7b41b172008-04-23 14:10:25 -04001834static inline void security_bprm_post_apply_creds(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001835{
1836 return;
1837}
1838
Eric Paris7b41b172008-04-23 14:10:25 -04001839static inline int security_bprm_set(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840{
Eric Paris7b41b172008-04-23 14:10:25 -04001841 return cap_bprm_set_security(bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842}
1843
Eric Paris7b41b172008-04-23 14:10:25 -04001844static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845{
1846 return 0;
1847}
1848
Eric Paris7b41b172008-04-23 14:10:25 -04001849static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850{
1851 return cap_bprm_secureexec(bprm);
1852}
1853
Eric Paris7b41b172008-04-23 14:10:25 -04001854static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855{
1856 return 0;
1857}
1858
Eric Paris7b41b172008-04-23 14:10:25 -04001859static inline void security_sb_free(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001860{ }
1861
Eric Paris7b41b172008-04-23 14:10:25 -04001862static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001863{
1864 return 0;
1865}
1866
Eric Paris7b41b172008-04-23 14:10:25 -04001867static inline int security_sb_kern_mount(struct super_block *sb, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001868{
1869 return 0;
1870}
1871
Eric Paris7b41b172008-04-23 14:10:25 -04001872static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001873{
1874 return 0;
1875}
1876
Eric Paris7b41b172008-04-23 14:10:25 -04001877static inline int security_sb_mount(char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001878 char *type, unsigned long flags,
1879 void *data)
1880{
1881 return 0;
1882}
1883
Eric Paris7b41b172008-04-23 14:10:25 -04001884static inline int security_sb_check_sb(struct vfsmount *mnt,
1885 struct path *path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001886{
1887 return 0;
1888}
1889
Eric Paris7b41b172008-04-23 14:10:25 -04001890static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891{
1892 return 0;
1893}
1894
Eric Paris7b41b172008-04-23 14:10:25 -04001895static inline void security_sb_umount_close(struct vfsmount *mnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896{ }
1897
Eric Paris7b41b172008-04-23 14:10:25 -04001898static inline void security_sb_umount_busy(struct vfsmount *mnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899{ }
1900
Eric Paris7b41b172008-04-23 14:10:25 -04001901static inline void security_sb_post_remount(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001902 unsigned long flags, void *data)
1903{ }
1904
Eric Paris7b41b172008-04-23 14:10:25 -04001905static inline void security_sb_post_addmount(struct vfsmount *mnt,
1906 struct path *mountpoint)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001907{ }
1908
Eric Paris7b41b172008-04-23 14:10:25 -04001909static inline int security_sb_pivotroot(struct path *old_path,
1910 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911{
1912 return 0;
1913}
1914
Eric Paris7b41b172008-04-23 14:10:25 -04001915static inline void security_sb_post_pivotroot(struct path *old_path,
1916 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001917{ }
Eric Parise0007522008-03-05 10:31:54 -05001918static inline int security_sb_get_mnt_opts(const struct super_block *sb,
1919 struct security_mnt_opts *opts)
1920{
1921 security_init_mnt_opts(opts);
1922 return 0;
1923}
1924
1925static inline int security_sb_set_mnt_opts(struct super_block *sb,
1926 struct security_mnt_opts *opts)
1927{
1928 return 0;
1929}
1930
1931static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1932 struct super_block *newsb)
1933{ }
1934
1935static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
1936{
1937 return 0;
1938}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001939
Eric Paris7b41b172008-04-23 14:10:25 -04001940static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001941{
1942 return 0;
1943}
1944
Eric Paris7b41b172008-04-23 14:10:25 -04001945static inline void security_inode_free(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001946{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001947
Eric Paris7b41b172008-04-23 14:10:25 -04001948static inline int security_inode_init_security(struct inode *inode,
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001949 struct inode *dir,
1950 char **name,
1951 void **value,
1952 size_t *len)
1953{
1954 return -EOPNOTSUPP;
1955}
Eric Paris7b41b172008-04-23 14:10:25 -04001956
1957static inline int security_inode_create(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001958 struct dentry *dentry,
1959 int mode)
1960{
1961 return 0;
1962}
1963
Eric Paris7b41b172008-04-23 14:10:25 -04001964static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965 struct inode *dir,
1966 struct dentry *new_dentry)
1967{
1968 return 0;
1969}
1970
Eric Paris7b41b172008-04-23 14:10:25 -04001971static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001972 struct dentry *dentry)
1973{
1974 return 0;
1975}
1976
Eric Paris7b41b172008-04-23 14:10:25 -04001977static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001978 struct dentry *dentry,
1979 const char *old_name)
1980{
1981 return 0;
1982}
1983
Eric Paris7b41b172008-04-23 14:10:25 -04001984static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001985 struct dentry *dentry,
1986 int mode)
1987{
1988 return 0;
1989}
1990
Eric Paris7b41b172008-04-23 14:10:25 -04001991static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992 struct dentry *dentry)
1993{
1994 return 0;
1995}
1996
Eric Paris7b41b172008-04-23 14:10:25 -04001997static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001998 struct dentry *dentry,
1999 int mode, dev_t dev)
2000{
2001 return 0;
2002}
2003
Eric Paris7b41b172008-04-23 14:10:25 -04002004static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002005 struct dentry *old_dentry,
2006 struct inode *new_dir,
2007 struct dentry *new_dentry)
2008{
2009 return 0;
2010}
2011
Eric Paris7b41b172008-04-23 14:10:25 -04002012static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002013{
2014 return 0;
2015}
2016
Eric Paris7b41b172008-04-23 14:10:25 -04002017static inline int security_inode_follow_link(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002018 struct nameidata *nd)
2019{
2020 return 0;
2021}
2022
Eric Paris7b41b172008-04-23 14:10:25 -04002023static inline int security_inode_permission(struct inode *inode, int mask,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002024 struct nameidata *nd)
2025{
2026 return 0;
2027}
2028
Eric Paris7b41b172008-04-23 14:10:25 -04002029static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030 struct iattr *attr)
2031{
2032 return 0;
2033}
2034
Eric Paris7b41b172008-04-23 14:10:25 -04002035static inline int security_inode_getattr(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036 struct dentry *dentry)
2037{
2038 return 0;
2039}
2040
Eric Paris7b41b172008-04-23 14:10:25 -04002041static inline void security_inode_delete(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042{ }
2043
Eric Paris7b41b172008-04-23 14:10:25 -04002044static inline int security_inode_setxattr(struct dentry *dentry, char *name,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045 void *value, size_t size, int flags)
2046{
2047 return cap_inode_setxattr(dentry, name, value, size, flags);
2048}
2049
Eric Paris7b41b172008-04-23 14:10:25 -04002050static inline void security_inode_post_setxattr(struct dentry *dentry, char *name,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002051 void *value, size_t size, int flags)
2052{ }
2053
Eric Paris7b41b172008-04-23 14:10:25 -04002054static inline int security_inode_getxattr(struct dentry *dentry, char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055{
2056 return 0;
2057}
2058
Eric Paris7b41b172008-04-23 14:10:25 -04002059static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002060{
2061 return 0;
2062}
2063
Eric Paris7b41b172008-04-23 14:10:25 -04002064static inline int security_inode_removexattr(struct dentry *dentry, char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002065{
2066 return cap_inode_removexattr(dentry, name);
2067}
2068
Serge E. Hallynb5376772007-10-16 23:31:36 -07002069static inline int security_inode_need_killpriv(struct dentry *dentry)
2070{
2071 return cap_inode_need_killpriv(dentry);
2072}
2073
2074static inline int security_inode_killpriv(struct dentry *dentry)
2075{
2076 return cap_inode_killpriv(dentry);
2077}
2078
David P. Quigley42492592008-02-04 22:29:39 -08002079static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002080{
2081 return -EOPNOTSUPP;
2082}
2083
2084static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2085{
2086 return -EOPNOTSUPP;
2087}
2088
2089static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2090{
2091 return 0;
2092}
2093
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002094static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2095{
2096 *secid = 0;
2097}
2098
Eric Paris7b41b172008-04-23 14:10:25 -04002099static inline int security_file_permission(struct file *file, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100{
2101 return 0;
2102}
2103
Eric Paris7b41b172008-04-23 14:10:25 -04002104static inline int security_file_alloc(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105{
2106 return 0;
2107}
2108
Eric Paris7b41b172008-04-23 14:10:25 -04002109static inline void security_file_free(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110{ }
2111
Eric Paris7b41b172008-04-23 14:10:25 -04002112static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2113 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114{
2115 return 0;
2116}
2117
Eric Paris7b41b172008-04-23 14:10:25 -04002118static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2119 unsigned long prot,
2120 unsigned long flags,
2121 unsigned long addr,
2122 unsigned long addr_only)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123{
2124 return 0;
2125}
2126
Eric Paris7b41b172008-04-23 14:10:25 -04002127static inline int security_file_mprotect(struct vm_area_struct *vma,
2128 unsigned long reqprot,
2129 unsigned long prot)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130{
2131 return 0;
2132}
2133
Eric Paris7b41b172008-04-23 14:10:25 -04002134static inline int security_file_lock(struct file *file, unsigned int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135{
2136 return 0;
2137}
2138
Eric Paris7b41b172008-04-23 14:10:25 -04002139static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2140 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141{
2142 return 0;
2143}
2144
Eric Paris7b41b172008-04-23 14:10:25 -04002145static inline int security_file_set_fowner(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002146{
2147 return 0;
2148}
2149
Eric Paris7b41b172008-04-23 14:10:25 -04002150static inline int security_file_send_sigiotask(struct task_struct *tsk,
2151 struct fown_struct *fown,
2152 int sig)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153{
2154 return 0;
2155}
2156
Eric Paris7b41b172008-04-23 14:10:25 -04002157static inline int security_file_receive(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158{
2159 return 0;
2160}
2161
Eric Paris7b41b172008-04-23 14:10:25 -04002162static inline int security_dentry_open(struct file *file)
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +09002163{
2164 return 0;
2165}
2166
Eric Paris7b41b172008-04-23 14:10:25 -04002167static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168{
2169 return 0;
2170}
2171
Eric Paris7b41b172008-04-23 14:10:25 -04002172static inline int security_task_alloc(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173{
2174 return 0;
2175}
2176
Eric Paris7b41b172008-04-23 14:10:25 -04002177static inline void security_task_free(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178{ }
2179
Eric Paris7b41b172008-04-23 14:10:25 -04002180static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
2181 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182{
2183 return 0;
2184}
2185
Eric Paris7b41b172008-04-23 14:10:25 -04002186static inline int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
2187 uid_t old_suid, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188{
Eric Paris7b41b172008-04-23 14:10:25 -04002189 return cap_task_post_setuid(old_ruid, old_euid, old_suid, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002190}
2191
Eric Paris7b41b172008-04-23 14:10:25 -04002192static inline int security_task_setgid(gid_t id0, gid_t id1, gid_t id2,
2193 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194{
2195 return 0;
2196}
2197
Eric Paris7b41b172008-04-23 14:10:25 -04002198static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199{
2200 return 0;
2201}
2202
Eric Paris7b41b172008-04-23 14:10:25 -04002203static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002204{
2205 return 0;
2206}
2207
Eric Paris7b41b172008-04-23 14:10:25 -04002208static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209{
2210 return 0;
2211}
2212
Eric Paris7b41b172008-04-23 14:10:25 -04002213static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002214{
2215 *secid = 0;
2216}
David Quigleyf9008e42006-06-30 01:55:46 -07002217
Eric Paris7b41b172008-04-23 14:10:25 -04002218static inline int security_task_setgroups(struct group_info *group_info)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002219{
2220 return 0;
2221}
2222
Eric Paris7b41b172008-04-23 14:10:25 -04002223static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002224{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002225 return cap_task_setnice(p, nice);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002226}
2227
Eric Paris7b41b172008-04-23 14:10:25 -04002228static inline int security_task_setioprio(struct task_struct *p, int ioprio)
James Morris03e68062006-06-23 02:03:58 -07002229{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002230 return cap_task_setioprio(p, ioprio);
James Morris03e68062006-06-23 02:03:58 -07002231}
2232
Eric Paris7b41b172008-04-23 14:10:25 -04002233static inline int security_task_getioprio(struct task_struct *p)
David Quigleya1836a42006-06-30 01:55:49 -07002234{
2235 return 0;
2236}
2237
Eric Paris7b41b172008-04-23 14:10:25 -04002238static inline int security_task_setrlimit(unsigned int resource,
2239 struct rlimit *new_rlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002240{
2241 return 0;
2242}
2243
Eric Paris7b41b172008-04-23 14:10:25 -04002244static inline int security_task_setscheduler(struct task_struct *p,
2245 int policy,
2246 struct sched_param *lp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002247{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002248 return cap_task_setscheduler(p, policy, lp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249}
2250
Eric Paris7b41b172008-04-23 14:10:25 -04002251static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002252{
2253 return 0;
2254}
2255
Eric Paris7b41b172008-04-23 14:10:25 -04002256static inline int security_task_movememory(struct task_struct *p)
David Quigley35601542006-06-23 02:04:01 -07002257{
2258 return 0;
2259}
2260
Eric Paris7b41b172008-04-23 14:10:25 -04002261static inline int security_task_kill(struct task_struct *p,
2262 struct siginfo *info, int sig,
2263 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264{
Serge Hallynaedb60a2008-02-29 15:14:57 +00002265 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002266}
2267
Eric Paris7b41b172008-04-23 14:10:25 -04002268static inline int security_task_wait(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269{
2270 return 0;
2271}
2272
Eric Paris7b41b172008-04-23 14:10:25 -04002273static inline int security_task_prctl(int option, unsigned long arg2,
2274 unsigned long arg3,
2275 unsigned long arg4,
Linus Torvaldscfd299d2008-04-28 10:08:49 -07002276 unsigned long arg5, long *rc_p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002277{
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -07002278 return cap_task_prctl(option, arg2, arg3, arg3, arg5, rc_p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279}
2280
Eric Paris7b41b172008-04-23 14:10:25 -04002281static inline void security_task_reparent_to_init(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282{
Eric Paris7b41b172008-04-23 14:10:25 -04002283 cap_task_reparent_to_init(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002284}
2285
2286static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2287{ }
2288
Eric Paris7b41b172008-04-23 14:10:25 -04002289static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2290 short flag)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002291{
2292 return 0;
2293}
2294
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002295static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2296{
2297 *secid = 0;
2298}
2299
Eric Paris7b41b172008-04-23 14:10:25 -04002300static inline int security_msg_msg_alloc(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002301{
2302 return 0;
2303}
2304
Eric Paris7b41b172008-04-23 14:10:25 -04002305static inline void security_msg_msg_free(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002306{ }
2307
Eric Paris7b41b172008-04-23 14:10:25 -04002308static inline int security_msg_queue_alloc(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002309{
2310 return 0;
2311}
2312
Eric Paris7b41b172008-04-23 14:10:25 -04002313static inline void security_msg_queue_free(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002314{ }
2315
Eric Paris7b41b172008-04-23 14:10:25 -04002316static inline int security_msg_queue_associate(struct msg_queue *msq,
2317 int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002318{
2319 return 0;
2320}
2321
Eric Paris7b41b172008-04-23 14:10:25 -04002322static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002323{
2324 return 0;
2325}
2326
Eric Paris7b41b172008-04-23 14:10:25 -04002327static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2328 struct msg_msg *msg, int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002329{
2330 return 0;
2331}
2332
Eric Paris7b41b172008-04-23 14:10:25 -04002333static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2334 struct msg_msg *msg,
2335 struct task_struct *target,
2336 long type, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002337{
2338 return 0;
2339}
2340
Eric Paris7b41b172008-04-23 14:10:25 -04002341static inline int security_shm_alloc(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002342{
2343 return 0;
2344}
2345
Eric Paris7b41b172008-04-23 14:10:25 -04002346static inline void security_shm_free(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002347{ }
2348
Eric Paris7b41b172008-04-23 14:10:25 -04002349static inline int security_shm_associate(struct shmid_kernel *shp,
2350 int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002351{
2352 return 0;
2353}
2354
Eric Paris7b41b172008-04-23 14:10:25 -04002355static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002356{
2357 return 0;
2358}
2359
Eric Paris7b41b172008-04-23 14:10:25 -04002360static inline int security_shm_shmat(struct shmid_kernel *shp,
2361 char __user *shmaddr, int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002362{
2363 return 0;
2364}
2365
Eric Paris7b41b172008-04-23 14:10:25 -04002366static inline int security_sem_alloc(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002367{
2368 return 0;
2369}
2370
Eric Paris7b41b172008-04-23 14:10:25 -04002371static inline void security_sem_free(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002372{ }
2373
Eric Paris7b41b172008-04-23 14:10:25 -04002374static inline int security_sem_associate(struct sem_array *sma, int semflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002375{
2376 return 0;
2377}
2378
Eric Paris7b41b172008-04-23 14:10:25 -04002379static inline int security_sem_semctl(struct sem_array *sma, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002380{
2381 return 0;
2382}
2383
Eric Paris7b41b172008-04-23 14:10:25 -04002384static inline int security_sem_semop(struct sem_array *sma,
2385 struct sembuf *sops, unsigned nsops,
2386 int alter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002387{
2388 return 0;
2389}
2390
Eric Paris7b41b172008-04-23 14:10:25 -04002391static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002392{ }
2393
Al Viro04ff9702007-03-12 16:17:58 +00002394static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002395{
2396 return -EINVAL;
2397}
2398
2399static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2400{
2401 return -EINVAL;
2402}
2403
Eric Paris7b41b172008-04-23 14:10:25 -04002404static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002405{
Eric Paris7b41b172008-04-23 14:10:25 -04002406 return cap_netlink_send(sk, skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002407}
2408
Eric Paris7b41b172008-04-23 14:10:25 -04002409static inline int security_netlink_recv(struct sk_buff *skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002410{
Eric Paris7b41b172008-04-23 14:10:25 -04002411 return cap_netlink_recv(skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002412}
2413
Randy Dunlaped5a9272006-02-01 03:05:00 -08002414static inline struct dentry *securityfs_create_dir(const char *name,
2415 struct dentry *parent)
2416{
2417 return ERR_PTR(-ENODEV);
2418}
2419
2420static inline struct dentry *securityfs_create_file(const char *name,
2421 mode_t mode,
2422 struct dentry *parent,
2423 void *data,
Jan Engelhardt1996a102008-01-23 00:02:58 +01002424 const struct file_operations *fops)
Randy Dunlaped5a9272006-02-01 03:05:00 -08002425{
2426 return ERR_PTR(-ENODEV);
2427}
2428
2429static inline void securityfs_remove(struct dentry *dentry)
2430{
2431}
2432
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002433static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2434{
2435 return -EOPNOTSUPP;
2436}
2437
David Howells63cb3442008-01-15 23:47:35 +00002438static inline int security_secctx_to_secid(char *secdata,
2439 u32 seclen,
2440 u32 *secid)
2441{
2442 return -EOPNOTSUPP;
2443}
2444
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002445static inline void security_release_secctx(char *secdata, u32 seclen)
2446{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002447}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002448#endif /* CONFIG_SECURITY */
2449
2450#ifdef CONFIG_SECURITY_NETWORK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002451
James Morris20510f22007-10-16 23:31:32 -07002452int security_unix_stream_connect(struct socket *sock, struct socket *other,
2453 struct sock *newsk);
2454int security_unix_may_send(struct socket *sock, struct socket *other);
2455int security_socket_create(int family, int type, int protocol, int kern);
2456int security_socket_post_create(struct socket *sock, int family,
2457 int type, int protocol, int kern);
2458int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2459int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2460int security_socket_listen(struct socket *sock, int backlog);
2461int security_socket_accept(struct socket *sock, struct socket *newsock);
2462void security_socket_post_accept(struct socket *sock, struct socket *newsock);
2463int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2464int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2465 int size, int flags);
2466int security_socket_getsockname(struct socket *sock);
2467int security_socket_getpeername(struct socket *sock);
2468int security_socket_getsockopt(struct socket *sock, int level, int optname);
2469int security_socket_setsockopt(struct socket *sock, int level, int optname);
2470int security_socket_shutdown(struct socket *sock, int how);
2471int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2472int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2473 int __user *optlen, unsigned len);
2474int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2475int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2476void security_sk_free(struct sock *sk);
2477void security_sk_clone(const struct sock *sk, struct sock *newsk);
2478void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2479void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2480void security_sock_graft(struct sock*sk, struct socket *parent);
2481int security_inet_conn_request(struct sock *sk,
2482 struct sk_buff *skb, struct request_sock *req);
2483void security_inet_csk_clone(struct sock *newsk,
2484 const struct request_sock *req);
2485void security_inet_conn_established(struct sock *sk,
2486 struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002487
Linus Torvalds1da177e2005-04-16 15:20:36 -07002488#else /* CONFIG_SECURITY_NETWORK */
Eric Paris7b41b172008-04-23 14:10:25 -04002489static inline int security_unix_stream_connect(struct socket *sock,
2490 struct socket *other,
2491 struct sock *newsk)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002492{
2493 return 0;
2494}
2495
Eric Paris7b41b172008-04-23 14:10:25 -04002496static inline int security_unix_may_send(struct socket *sock,
2497 struct socket *other)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002498{
2499 return 0;
2500}
2501
Eric Paris7b41b172008-04-23 14:10:25 -04002502static inline int security_socket_create(int family, int type,
2503 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002504{
2505 return 0;
2506}
2507
Eric Paris7b41b172008-04-23 14:10:25 -04002508static inline int security_socket_post_create(struct socket *sock,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002509 int family,
2510 int type,
2511 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002512{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002513 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002514}
2515
Eric Paris7b41b172008-04-23 14:10:25 -04002516static inline int security_socket_bind(struct socket *sock,
2517 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002518 int addrlen)
2519{
2520 return 0;
2521}
2522
Eric Paris7b41b172008-04-23 14:10:25 -04002523static inline int security_socket_connect(struct socket *sock,
2524 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002525 int addrlen)
2526{
2527 return 0;
2528}
2529
Eric Paris7b41b172008-04-23 14:10:25 -04002530static inline int security_socket_listen(struct socket *sock, int backlog)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002531{
2532 return 0;
2533}
2534
Eric Paris7b41b172008-04-23 14:10:25 -04002535static inline int security_socket_accept(struct socket *sock,
2536 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002537{
2538 return 0;
2539}
2540
Eric Paris7b41b172008-04-23 14:10:25 -04002541static inline void security_socket_post_accept(struct socket *sock,
2542 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002543{
2544}
2545
Eric Paris7b41b172008-04-23 14:10:25 -04002546static inline int security_socket_sendmsg(struct socket *sock,
2547 struct msghdr *msg, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002548{
2549 return 0;
2550}
2551
Eric Paris7b41b172008-04-23 14:10:25 -04002552static inline int security_socket_recvmsg(struct socket *sock,
2553 struct msghdr *msg, int size,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002554 int flags)
2555{
2556 return 0;
2557}
2558
Eric Paris7b41b172008-04-23 14:10:25 -04002559static inline int security_socket_getsockname(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002560{
2561 return 0;
2562}
2563
Eric Paris7b41b172008-04-23 14:10:25 -04002564static inline int security_socket_getpeername(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002565{
2566 return 0;
2567}
2568
Eric Paris7b41b172008-04-23 14:10:25 -04002569static inline int security_socket_getsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002570 int level, int optname)
2571{
2572 return 0;
2573}
2574
Eric Paris7b41b172008-04-23 14:10:25 -04002575static inline int security_socket_setsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002576 int level, int optname)
2577{
2578 return 0;
2579}
2580
Eric Paris7b41b172008-04-23 14:10:25 -04002581static inline int security_socket_shutdown(struct socket *sock, int how)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002582{
2583 return 0;
2584}
Eric Paris7b41b172008-04-23 14:10:25 -04002585static inline int security_sock_rcv_skb(struct sock *sk,
2586 struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002587{
2588 return 0;
2589}
2590
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002591static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2592 int __user *optlen, unsigned len)
2593{
2594 return -ENOPROTOOPT;
2595}
2596
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002597static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002598{
2599 return -ENOPROTOOPT;
2600}
2601
Al Virodd0fc662005-10-07 07:46:04 +01002602static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002603{
2604 return 0;
2605}
2606
2607static inline void security_sk_free(struct sock *sk)
2608{
2609}
Trent Jaegerdf718372005-12-13 23:12:27 -08002610
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002611static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2612{
2613}
2614
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002615static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002616{
Trent Jaegerdf718372005-12-13 23:12:27 -08002617}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002618
2619static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2620{
2621}
2622
Eric Paris7b41b172008-04-23 14:10:25 -04002623static inline void security_sock_graft(struct sock *sk, struct socket *parent)
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002624{
2625}
2626
2627static inline int security_inet_conn_request(struct sock *sk,
2628 struct sk_buff *skb, struct request_sock *req)
2629{
2630 return 0;
2631}
2632
2633static inline void security_inet_csk_clone(struct sock *newsk,
2634 const struct request_sock *req)
2635{
2636}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002637
2638static inline void security_inet_conn_established(struct sock *sk,
2639 struct sk_buff *skb)
2640{
2641}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002642#endif /* CONFIG_SECURITY_NETWORK */
2643
Trent Jaegerdf718372005-12-13 23:12:27 -08002644#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07002645
Paul Moore03e1ad72008-04-12 19:07:52 -07002646int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2647int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2648void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2649int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
James Morris20510f22007-10-16 23:31:32 -07002650int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2651int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2652 struct xfrm_sec_ctx *polsec, u32 secid);
2653int security_xfrm_state_delete(struct xfrm_state *x);
2654void security_xfrm_state_free(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -07002655int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
James Morris20510f22007-10-16 23:31:32 -07002656int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2657 struct xfrm_policy *xp, struct flowi *fl);
2658int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2659void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
Trent Jaegerdf718372005-12-13 23:12:27 -08002660
Trent Jaegerdf718372005-12-13 23:12:27 -08002661#else /* CONFIG_SECURITY_NETWORK_XFRM */
James Morris20510f22007-10-16 23:31:32 -07002662
Paul Moore03e1ad72008-04-12 19:07:52 -07002663static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08002664{
2665 return 0;
2666}
2667
Paul Moore03e1ad72008-04-12 19:07:52 -07002668static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
Trent Jaegerdf718372005-12-13 23:12:27 -08002669{
2670 return 0;
2671}
2672
Paul Moore03e1ad72008-04-12 19:07:52 -07002673static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08002674{
2675}
2676
Paul Moore03e1ad72008-04-12 19:07:52 -07002677static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002678{
2679 return 0;
2680}
2681
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002682static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2683 struct xfrm_user_sec_ctx *sec_ctx)
2684{
2685 return 0;
2686}
2687
2688static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2689 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08002690{
2691 return 0;
2692}
2693
2694static inline void security_xfrm_state_free(struct xfrm_state *x)
2695{
2696}
2697
David S. Miller6f68dc32006-06-08 23:58:52 -07002698static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002699{
2700 return 0;
2701}
2702
Paul Moore03e1ad72008-04-12 19:07:52 -07002703static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08002704{
2705 return 0;
2706}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002707
2708static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2709 struct xfrm_policy *xp, struct flowi *fl)
2710{
2711 return 1;
2712}
2713
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002714static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002715{
2716 return 0;
2717}
2718
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002719static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2720{
2721}
2722
Trent Jaegerdf718372005-12-13 23:12:27 -08002723#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2724
David Howells29db9192005-10-30 15:02:44 -08002725#ifdef CONFIG_KEYS
2726#ifdef CONFIG_SECURITY
David Howells29db9192005-10-30 15:02:44 -08002727
James Morris20510f22007-10-16 23:31:32 -07002728int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags);
2729void security_key_free(struct key *key);
2730int security_key_permission(key_ref_t key_ref,
2731 struct task_struct *context, key_perm_t perm);
David Howells29db9192005-10-30 15:02:44 -08002732
2733#else
2734
Michael LeMayd7200242006-06-22 14:47:17 -07002735static inline int security_key_alloc(struct key *key,
David Howells7e047ef2006-06-26 00:24:50 -07002736 struct task_struct *tsk,
2737 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08002738{
2739 return 0;
2740}
2741
2742static inline void security_key_free(struct key *key)
2743{
2744}
2745
2746static inline int security_key_permission(key_ref_t key_ref,
2747 struct task_struct *context,
2748 key_perm_t perm)
2749{
2750 return 0;
2751}
2752
2753#endif
2754#endif /* CONFIG_KEYS */
2755
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02002756#ifdef CONFIG_AUDIT
2757#ifdef CONFIG_SECURITY
2758int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2759int security_audit_rule_known(struct audit_krule *krule);
2760int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2761 struct audit_context *actx);
2762void security_audit_rule_free(void *lsmrule);
2763
2764#else
2765
2766static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2767 void **lsmrule)
2768{
2769 return 0;
2770}
2771
2772static inline int security_audit_rule_known(struct audit_krule *krule)
2773{
2774 return 0;
2775}
2776
2777static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2778 void *lsmrule, struct audit_context *actx)
2779{
2780 return 0;
2781}
2782
2783static inline void security_audit_rule_free(void *lsmrule)
2784{ }
2785
2786#endif /* CONFIG_SECURITY */
2787#endif /* CONFIG_AUDIT */
2788
Linus Torvalds1da177e2005-04-16 15:20:36 -07002789#endif /* ! __LINUX_SECURITY_H */
2790