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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);
David Howells5cd9c582008-08-14 11:37:28 +010049extern int cap_ptrace_may_access(struct task_struct *child, unsigned int mode);
50extern int cap_ptrace_traceme(struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -040051extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
52extern int cap_capset_check(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
53extern void cap_capset_set(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
54extern int cap_bprm_set_security(struct linux_binprm *bprm);
55extern void cap_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
Linus Torvalds1da177e2005-04-16 15:20:36 -070056extern int cap_bprm_secureexec(struct linux_binprm *bprm);
David Howells8f0cfa52008-04-29 00:59:41 -070057extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
58 const void *value, size_t size, int flags);
59extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -070060extern int cap_inode_need_killpriv(struct dentry *dentry);
61extern int cap_inode_killpriv(struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -040062extern int cap_task_post_setuid(uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags);
63extern void cap_task_reparent_to_init(struct task_struct *p);
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070064extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
65 unsigned long arg4, unsigned long arg5, long *rc_p);
Eric Paris7b41b172008-04-23 14:10:25 -040066extern int cap_task_setscheduler(struct task_struct *p, int policy, struct sched_param *lp);
67extern int cap_task_setioprio(struct task_struct *p, int ioprio);
68extern int cap_task_setnice(struct task_struct *p, int nice);
69extern int cap_syslog(int type);
James Morris20510f22007-10-16 23:31:32 -070070extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
72struct msghdr;
73struct sk_buff;
74struct sock;
75struct sockaddr;
76struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -080077struct flowi;
78struct dst_entry;
79struct xfrm_selector;
80struct xfrm_policy;
81struct xfrm_state;
82struct xfrm_user_sec_ctx;
Eric Paris2069f452008-07-04 09:47:13 +100083struct seq_file;
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
85extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
Darrel Goeddelc7bdb542006-06-27 13:26:11 -070086extern int cap_netlink_recv(struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
Eric Parised032182007-06-28 15:55:21 -040088extern unsigned long mmap_min_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -070089/*
90 * Values used in the task_security_ops calls
91 */
92/* setuid or setgid, id0 == uid or gid */
93#define LSM_SETID_ID 1
94
95/* setreuid or setregid, id0 == real, id1 == eff */
96#define LSM_SETID_RE 2
97
98/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
99#define LSM_SETID_RES 4
100
101/* setfsuid or setfsgid, id0 == fsuid or fsgid */
102#define LSM_SETID_FS 8
103
104/* forward declares to avoid warnings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105struct sched_param;
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700106struct request_sock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
108/* bprm_apply_creds unsafe reasons */
109#define LSM_UNSAFE_SHARE 1
110#define LSM_UNSAFE_PTRACE 2
111#define LSM_UNSAFE_PTRACE_CAP 4
112
113#ifdef CONFIG_SECURITY
114
Eric Parise0007522008-03-05 10:31:54 -0500115struct security_mnt_opts {
116 char **mnt_opts;
117 int *mnt_opts_flags;
118 int num_mnt_opts;
119};
120
121static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
122{
123 opts->mnt_opts = NULL;
124 opts->mnt_opts_flags = NULL;
125 opts->num_mnt_opts = 0;
126}
127
128static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
129{
130 int i;
131 if (opts->mnt_opts)
Eric Paris7b41b172008-04-23 14:10:25 -0400132 for (i = 0; i < opts->num_mnt_opts; i++)
Eric Parise0007522008-03-05 10:31:54 -0500133 kfree(opts->mnt_opts[i]);
134 kfree(opts->mnt_opts);
135 opts->mnt_opts = NULL;
136 kfree(opts->mnt_opts_flags);
137 opts->mnt_opts_flags = NULL;
138 opts->num_mnt_opts = 0;
139}
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141/**
142 * struct security_operations - main security structure
143 *
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200144 * Security module identifier.
145 *
146 * @name:
147 * A string that acts as a unique identifeir for the LSM with max number
148 * of characters = SECURITY_NAME_MAX.
149 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 * Security hooks for program execution operations.
151 *
152 * @bprm_alloc_security:
153 * Allocate and attach a security structure to the @bprm->security field.
154 * The security field is initialized to NULL when the bprm structure is
155 * allocated.
156 * @bprm contains the linux_binprm structure to be modified.
157 * Return 0 if operation was successful.
158 * @bprm_free_security:
159 * @bprm contains the linux_binprm structure to be modified.
160 * Deallocate and clear the @bprm->security field.
161 * @bprm_apply_creds:
162 * Compute and set the security attributes of a process being transformed
163 * by an execve operation based on the old attributes (current->security)
164 * and the information saved in @bprm->security by the set_security hook.
165 * Since this hook function (and its caller) are void, this hook can not
166 * return an error. However, it can leave the security attributes of the
167 * process unchanged if an access failure occurs at this point.
168 * bprm_apply_creds is called under task_lock. @unsafe indicates various
169 * reasons why it may be unsafe to change security state.
170 * @bprm contains the linux_binprm structure.
171 * @bprm_post_apply_creds:
172 * Runs after bprm_apply_creds with the task_lock dropped, so that
173 * functions which cannot be called safely under the task_lock can
174 * be used. This hook is a good place to perform state changes on
175 * the process such as closing open file descriptors to which access
176 * is no longer granted if the attributes were changed.
177 * Note that a security module might need to save state between
178 * bprm_apply_creds and bprm_post_apply_creds to store the decision
179 * on whether the process may proceed.
180 * @bprm contains the linux_binprm structure.
181 * @bprm_set_security:
182 * Save security information in the bprm->security field, typically based
183 * on information about the bprm->file, for later use by the apply_creds
184 * hook. This hook may also optionally check permissions (e.g. for
185 * transitions between security domains).
186 * This hook may be called multiple times during a single execve, e.g. for
187 * interpreters. The hook can tell whether it has already been called by
188 * checking to see if @bprm->security is non-NULL. If so, then the hook
189 * may decide either to retain the security information saved earlier or
190 * to replace it.
191 * @bprm contains the linux_binprm structure.
192 * Return 0 if the hook is successful and permission is granted.
193 * @bprm_check_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400194 * This hook mediates the point when a search for a binary handler will
195 * begin. It allows a check the @bprm->security value which is set in
196 * the preceding set_security call. The primary difference from
197 * set_security is that the argv list and envp list are reliably
198 * available in @bprm. This hook may be called multiple times
199 * during a single execve; and in each pass set_security is called
200 * first.
201 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 * Return 0 if the hook is successful and permission is granted.
203 * @bprm_secureexec:
Eric Paris7b41b172008-04-23 14:10:25 -0400204 * Return a boolean value (0 or 1) indicating whether a "secure exec"
205 * is required. The flag is passed in the auxiliary table
206 * on the initial stack to the ELF interpreter to indicate whether libc
207 * should enable secure mode.
208 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 *
210 * Security hooks for filesystem operations.
211 *
212 * @sb_alloc_security:
213 * Allocate and attach a security structure to the sb->s_security field.
214 * The s_security field is initialized to NULL when the structure is
215 * allocated.
216 * @sb contains the super_block structure to be modified.
217 * Return 0 if operation was successful.
218 * @sb_free_security:
219 * Deallocate and clear the sb->s_security field.
220 * @sb contains the super_block structure to be modified.
221 * @sb_statfs:
David Howells726c3342006-06-23 02:02:58 -0700222 * Check permission before obtaining filesystem statistics for the @mnt
223 * mountpoint.
224 * @dentry is a handle on the superblock for the filesystem.
Eric Paris7b41b172008-04-23 14:10:25 -0400225 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 * @sb_mount:
227 * Check permission before an object specified by @dev_name is mounted on
228 * the mount point named by @nd. For an ordinary mount, @dev_name
229 * identifies a device if the file system type requires a device. For a
230 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
231 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
232 * pathname of the object being mounted.
233 * @dev_name contains the name for object being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400234 * @path contains the path for mount point object.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235 * @type contains the filesystem type.
236 * @flags contains the mount flags.
237 * @data contains the filesystem-specific data.
238 * Return 0 if permission is granted.
239 * @sb_copy_data:
240 * Allow mount option data to be copied prior to parsing by the filesystem,
241 * so that the security module can extract security-specific mount
242 * options cleanly (a filesystem may modify the data e.g. with strsep()).
243 * This also allows the original mount data to be stripped of security-
244 * specific options to avoid having to make filesystems aware of them.
245 * @type the type of filesystem being mounted.
246 * @orig the original mount data copied from userspace.
247 * @copy copied data which will be passed to the security module.
248 * Returns 0 if the copy was successful.
249 * @sb_check_sb:
250 * Check permission before the device with superblock @mnt->sb is mounted
251 * on the mount point named by @nd.
252 * @mnt contains the vfsmount for device being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400253 * @path contains the path for the mount point.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 * Return 0 if permission is granted.
255 * @sb_umount:
256 * Check permission before the @mnt file system is unmounted.
257 * @mnt contains the mounted file system.
258 * @flags contains the unmount flags, e.g. MNT_FORCE.
259 * Return 0 if permission is granted.
260 * @sb_umount_close:
261 * Close any files in the @mnt mounted filesystem that are held open by
262 * the security module. This hook is called during an umount operation
263 * prior to checking whether the filesystem is still busy.
264 * @mnt contains the mounted filesystem.
265 * @sb_umount_busy:
266 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
267 * any files that were closed by umount_close. This hook is called during
268 * an umount operation if the umount fails after a call to the
269 * umount_close hook.
270 * @mnt contains the mounted filesystem.
271 * @sb_post_remount:
272 * Update the security module's state when a filesystem is remounted.
273 * This hook is only called if the remount was successful.
274 * @mnt contains the mounted file system.
275 * @flags contains the new filesystem flags.
276 * @data contains the filesystem-specific data.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277 * @sb_post_addmount:
278 * Update the security module's state when a filesystem is mounted.
279 * This hook is called any time a mount is successfully grafetd to
280 * the tree.
281 * @mnt contains the mounted filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400282 * @mountpoint contains the path for the mount point.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 * @sb_pivotroot:
284 * Check permission before pivoting the root filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400285 * @old_path contains the path for the new location of the current root (put_old).
Eric Paris7b41b172008-04-23 14:10:25 -0400286 * @new_path contains the path for the new root (new_root).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 * Return 0 if permission is granted.
288 * @sb_post_pivotroot:
289 * Update module state after a successful pivot.
Al Virob5266eb2008-03-22 17:48:24 -0400290 * @old_path contains the path for the old root.
Eric Paris7b41b172008-04-23 14:10:25 -0400291 * @new_path contains the path for the new root.
Eric Parisc9180a52007-11-30 13:00:35 -0500292 * @sb_set_mnt_opts:
293 * Set the security relevant mount options used for a superblock
294 * @sb the superblock to set security mount options for
Eric Parise0007522008-03-05 10:31:54 -0500295 * @opts binary data structure containing all lsm mount data
Eric Parisc9180a52007-11-30 13:00:35 -0500296 * @sb_clone_mnt_opts:
297 * Copy all security options from a given superblock to another
298 * @oldsb old superblock which contain information to clone
299 * @newsb new superblock which needs filled in
Eric Parise0007522008-03-05 10:31:54 -0500300 * @sb_parse_opts_str:
301 * Parse a string of security data filling in the opts structure
302 * @options string containing all mount options known by the LSM
303 * @opts binary data structure usable by the LSM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304 *
305 * Security hooks for inode operations.
306 *
307 * @inode_alloc_security:
308 * Allocate and attach a security structure to @inode->i_security. The
309 * i_security field is initialized to NULL when the inode structure is
310 * allocated.
311 * @inode contains the inode structure.
312 * Return 0 if operation was successful.
313 * @inode_free_security:
314 * @inode contains the inode structure.
315 * Deallocate the inode security structure and set @inode->i_security to
Eric Paris7b41b172008-04-23 14:10:25 -0400316 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700317 * @inode_init_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400318 * Obtain the security attribute name suffix and value to set on a newly
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700319 * created inode and set up the incore security field for the new inode.
320 * This hook is called by the fs code as part of the inode creation
321 * transaction and provides for atomic labeling of the inode, unlike
322 * the post_create/mkdir/... hooks called by the VFS. The hook function
323 * is expected to allocate the name and value via kmalloc, with the caller
324 * being responsible for calling kfree after using them.
325 * If the security module does not use security attributes or does
326 * not wish to put a security attribute on this particular inode,
327 * then it should return -EOPNOTSUPP to skip this processing.
328 * @inode contains the inode structure of the newly created inode.
329 * @dir contains the inode structure of the parent directory.
330 * @name will be set to the allocated name suffix (e.g. selinux).
331 * @value will be set to the allocated attribute value.
332 * @len will be set to the length of the value.
333 * Returns 0 if @name and @value have been successfully set,
334 * -EOPNOTSUPP if no security attribute is needed, or
335 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 * @inode_create:
337 * Check permission to create a regular file.
338 * @dir contains inode structure of the parent of the new file.
339 * @dentry contains the dentry structure for the file to be created.
340 * @mode contains the file mode of the file to be created.
341 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 * @inode_link:
343 * Check permission before creating a new hard link to a file.
344 * @old_dentry contains the dentry structure for an existing link to the file.
345 * @dir contains the inode structure of the parent directory of the new link.
346 * @new_dentry contains the dentry structure for the new link.
347 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 * @inode_unlink:
Eric Paris7b41b172008-04-23 14:10:25 -0400349 * Check the permission to remove a hard link to a file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 * @dir contains the inode structure of parent directory of the file.
351 * @dentry contains the dentry structure for file to be unlinked.
352 * Return 0 if permission is granted.
353 * @inode_symlink:
354 * Check the permission to create a symbolic link to a file.
355 * @dir contains the inode structure of parent directory of the symbolic link.
356 * @dentry contains the dentry structure of the symbolic link.
357 * @old_name contains the pathname of file.
358 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 * @inode_mkdir:
360 * Check permissions to create a new directory in the existing directory
Eric Paris7b41b172008-04-23 14:10:25 -0400361 * associated with inode strcture @dir.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 * @dir containst the inode structure of parent of the directory to be created.
363 * @dentry contains the dentry structure of new directory.
364 * @mode contains the mode of new directory.
365 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366 * @inode_rmdir:
367 * Check the permission to remove a directory.
368 * @dir contains the inode structure of parent of the directory to be removed.
369 * @dentry contains the dentry structure of directory to be removed.
370 * Return 0 if permission is granted.
371 * @inode_mknod:
372 * Check permissions when creating a special file (or a socket or a fifo
373 * file created via the mknod system call). Note that if mknod operation
374 * is being done for a regular file, then the create hook will be called
375 * and not this hook.
376 * @dir contains the inode structure of parent of the new file.
377 * @dentry contains the dentry structure of the new file.
378 * @mode contains the mode of the new file.
Michael Opdenacker59c51592007-05-09 08:57:56 +0200379 * @dev contains the device number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 * @inode_rename:
382 * Check for permission to rename a file or directory.
383 * @old_dir contains the inode structure for parent of the old link.
384 * @old_dentry contains the dentry structure of the old link.
385 * @new_dir contains the inode structure for parent of the new link.
386 * @new_dentry contains the dentry structure of the new link.
387 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 * @inode_readlink:
389 * Check the permission to read the symbolic link.
390 * @dentry contains the dentry structure for the file link.
391 * Return 0 if permission is granted.
392 * @inode_follow_link:
393 * Check permission to follow a symbolic link when looking up a pathname.
394 * @dentry contains the dentry structure for the link.
395 * @nd contains the nameidata structure for the parent directory.
396 * Return 0 if permission is granted.
397 * @inode_permission:
398 * Check permission before accessing an inode. This hook is called by the
399 * existing Linux permission function, so a security module can use it to
400 * provide additional checking for existing Linux permission checks.
401 * Notice that this hook is called when a file is opened (as well as many
402 * other operations), whereas the file_security_ops permission hook is
403 * called when the actual read/write operations are performed.
404 * @inode contains the inode structure to check.
405 * @mask contains the permission mask.
Eric Paris7b41b172008-04-23 14:10:25 -0400406 * @nd contains the nameidata (may be NULL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 * Return 0 if permission is granted.
408 * @inode_setattr:
409 * Check permission before setting file attributes. Note that the kernel
410 * call to notify_change is performed from several locations, whenever
411 * file attributes change (such as when a file is truncated, chown/chmod
412 * operations, transferring disk quotas, etc).
413 * @dentry contains the dentry structure for the file.
414 * @attr is the iattr structure containing the new file attributes.
415 * Return 0 if permission is granted.
416 * @inode_getattr:
417 * Check permission before obtaining file attributes.
418 * @mnt is the vfsmount where the dentry was looked up
419 * @dentry contains the dentry structure for the file.
420 * Return 0 if permission is granted.
421 * @inode_delete:
422 * @inode contains the inode structure for deleted inode.
423 * This hook is called when a deleted inode is released (i.e. an inode
424 * with no hard links has its use count drop to zero). A security module
425 * can use this hook to release any persistent label associated with the
426 * inode.
427 * @inode_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400428 * Check permission before setting the extended attributes
429 * @value identified by @name for @dentry.
430 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 * @inode_post_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400432 * Update inode security field after successful setxattr operation.
433 * @value identified by @name for @dentry.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434 * @inode_getxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400435 * Check permission before obtaining the extended attributes
436 * identified by @name for @dentry.
437 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 * @inode_listxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400439 * Check permission before obtaining the list of extended attribute
440 * names for @dentry.
441 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 * @inode_removexattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400443 * Check permission before removing the extended attribute
444 * identified by @name for @dentry.
445 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 * @inode_getsecurity:
David P. Quigley42492592008-02-04 22:29:39 -0800447 * Retrieve a copy of the extended attribute representation of the
448 * security label associated with @name for @inode via @buffer. Note that
449 * @name is the remainder of the attribute name after the security prefix
450 * has been removed. @alloc is used to specify of the call should return a
451 * value via the buffer or just the value length Return size of buffer on
452 * success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 * @inode_setsecurity:
454 * Set the security label associated with @name for @inode from the
455 * extended attribute value @value. @size indicates the size of the
456 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
Eric Paris7b41b172008-04-23 14:10:25 -0400457 * Note that @name is the remainder of the attribute name after the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 * security. prefix has been removed.
459 * Return 0 on success.
460 * @inode_listsecurity:
461 * Copy the extended attribute names for the security labels
462 * associated with @inode into @buffer. The maximum size of @buffer
463 * is specified by @buffer_size. @buffer may be NULL to request
464 * the size of the buffer required.
465 * Returns number of bytes used/required on success.
Serge E. Hallynb5376772007-10-16 23:31:36 -0700466 * @inode_need_killpriv:
467 * Called when an inode has been changed.
468 * @dentry is the dentry being changed.
469 * Return <0 on error to abort the inode change operation.
470 * Return 0 if inode_killpriv does not need to be called.
471 * Return >0 if inode_killpriv does need to be called.
472 * @inode_killpriv:
473 * The setuid bit is being removed. Remove similar security labels.
474 * Called with the dentry->d_inode->i_mutex held.
475 * @dentry is the dentry being changed.
476 * Return 0 on success. If error is returned, then the operation
477 * causing setuid bit removal is failed.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200478 * @inode_getsecid:
479 * Get the secid associated with the node.
480 * @inode contains a pointer to the inode.
481 * @secid contains a pointer to the location where result will be saved.
482 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 *
484 * Security hooks for file operations
485 *
486 * @file_permission:
487 * Check file permissions before accessing an open file. This hook is
488 * called by various operations that read or write files. A security
489 * module can use this hook to perform additional checking on these
490 * operations, e.g. to revalidate permissions on use to support privilege
491 * bracketing or policy changes. Notice that this hook is used when the
492 * actual read/write operations are performed, whereas the
493 * inode_security_ops hook is called when a file is opened (as well as
494 * many other operations).
495 * Caveat: Although this hook can be used to revalidate permissions for
496 * various system call operations that read or write files, it does not
497 * address the revalidation of permissions for memory-mapped files.
498 * Security modules must handle this separately if they need such
499 * revalidation.
500 * @file contains the file structure being accessed.
501 * @mask contains the requested permissions.
502 * Return 0 if permission is granted.
503 * @file_alloc_security:
504 * Allocate and attach a security structure to the file->f_security field.
505 * The security field is initialized to NULL when the structure is first
506 * created.
507 * @file contains the file structure to secure.
508 * Return 0 if the hook is successful and permission is granted.
509 * @file_free_security:
510 * Deallocate and free any security structures stored in file->f_security.
511 * @file contains the file structure being modified.
512 * @file_ioctl:
513 * @file contains the file structure.
514 * @cmd contains the operation to perform.
515 * @arg contains the operational arguments.
516 * Check permission for an ioctl operation on @file. Note that @arg can
517 * sometimes represents a user space pointer; in other cases, it may be a
518 * simple integer value. When @arg represents a user space pointer, it
519 * should never be used by the security module.
520 * Return 0 if permission is granted.
521 * @file_mmap :
522 * Check permissions for a mmap operation. The @file may be NULL, e.g.
523 * if mapping anonymous memory.
524 * @file contains the file structure for file to map (may be NULL).
525 * @reqprot contains the protection requested by the application.
526 * @prot contains the protection that will be applied by the kernel.
527 * @flags contains the operational flags.
528 * Return 0 if permission is granted.
529 * @file_mprotect:
530 * Check permissions before changing memory access permissions.
531 * @vma contains the memory region to modify.
532 * @reqprot contains the protection requested by the application.
533 * @prot contains the protection that will be applied by the kernel.
534 * Return 0 if permission is granted.
535 * @file_lock:
536 * Check permission before performing file locking operations.
537 * Note: this hook mediates both flock and fcntl style locks.
538 * @file contains the file structure.
539 * @cmd contains the posix-translated lock operation to perform
540 * (e.g. F_RDLCK, F_WRLCK).
541 * Return 0 if permission is granted.
542 * @file_fcntl:
543 * Check permission before allowing the file operation specified by @cmd
544 * from being performed on the file @file. Note that @arg can sometimes
545 * represents a user space pointer; in other cases, it may be a simple
546 * integer value. When @arg represents a user space pointer, it should
547 * never be used by the security module.
548 * @file contains the file structure.
549 * @cmd contains the operation to be performed.
550 * @arg contains the operational arguments.
551 * Return 0 if permission is granted.
552 * @file_set_fowner:
553 * Save owner security information (typically from current->security) in
554 * file->f_security for later use by the send_sigiotask hook.
555 * @file contains the file structure to update.
556 * Return 0 on success.
557 * @file_send_sigiotask:
558 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
559 * process @tsk. Note that this hook is sometimes called from interrupt.
560 * Note that the fown_struct, @fown, is never outside the context of a
561 * struct file, so the file structure (and associated security information)
562 * can always be obtained:
Robert P. J. Dayb385a142007-02-10 01:46:25 -0800563 * container_of(fown, struct file, f_owner)
Eric Paris7b41b172008-04-23 14:10:25 -0400564 * @tsk contains the structure of task receiving signal.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565 * @fown contains the file owner information.
566 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
567 * Return 0 if permission is granted.
568 * @file_receive:
569 * This hook allows security modules to control the ability of a process
570 * to receive an open file descriptor via socket IPC.
571 * @file contains the file structure being received.
572 * Return 0 if permission is granted.
573 *
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +0900574 * Security hook for dentry
575 *
576 * @dentry_open
577 * Save open-time permission checking state for later use upon
578 * file_permission, and recheck access if anything has changed
579 * since inode_permission.
580 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581 * Security hooks for task operations.
582 *
583 * @task_create:
584 * Check permission before creating a child process. See the clone(2)
585 * manual page for definitions of the @clone_flags.
586 * @clone_flags contains the flags indicating what should be shared.
587 * Return 0 if permission is granted.
588 * @task_alloc_security:
589 * @p contains the task_struct for child process.
590 * Allocate and attach a security structure to the p->security field. The
591 * security field is initialized to NULL when the task structure is
592 * allocated.
593 * Return 0 if operation was successful.
594 * @task_free_security:
595 * @p contains the task_struct for process.
596 * Deallocate and clear the p->security field.
597 * @task_setuid:
598 * Check permission before setting one or more of the user identity
599 * attributes of the current process. The @flags parameter indicates
600 * which of the set*uid system calls invoked this hook and how to
601 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
602 * definitions at the beginning of this file for the @flags values and
603 * their meanings.
604 * @id0 contains a uid.
605 * @id1 contains a uid.
606 * @id2 contains a uid.
607 * @flags contains one of the LSM_SETID_* values.
608 * Return 0 if permission is granted.
609 * @task_post_setuid:
610 * Update the module's state after setting one or more of the user
611 * identity attributes of the current process. The @flags parameter
612 * indicates which of the set*uid system calls invoked this hook. If
613 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
614 * parameters are not used.
615 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
616 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
617 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
618 * @flags contains one of the LSM_SETID_* values.
619 * Return 0 on success.
620 * @task_setgid:
621 * Check permission before setting one or more of the group identity
622 * attributes of the current process. The @flags parameter indicates
623 * which of the set*gid system calls invoked this hook and how to
624 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
625 * definitions at the beginning of this file for the @flags values and
626 * their meanings.
627 * @id0 contains a gid.
628 * @id1 contains a gid.
629 * @id2 contains a gid.
630 * @flags contains one of the LSM_SETID_* values.
631 * Return 0 if permission is granted.
632 * @task_setpgid:
633 * Check permission before setting the process group identifier of the
634 * process @p to @pgid.
635 * @p contains the task_struct for process being modified.
636 * @pgid contains the new pgid.
637 * Return 0 if permission is granted.
638 * @task_getpgid:
639 * Check permission before getting the process group identifier of the
640 * process @p.
641 * @p contains the task_struct for the process.
642 * Return 0 if permission is granted.
643 * @task_getsid:
644 * Check permission before getting the session identifier of the process
645 * @p.
646 * @p contains the task_struct for the process.
647 * Return 0 if permission is granted.
David Quigleyf9008e42006-06-30 01:55:46 -0700648 * @task_getsecid:
649 * Retrieve the security identifier of the process @p.
650 * @p contains the task_struct for the process and place is into @secid.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200651 * In case of failure, @secid will be set to zero.
652 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 * @task_setgroups:
654 * Check permission before setting the supplementary group set of the
655 * current process.
656 * @group_info contains the new group information.
657 * Return 0 if permission is granted.
658 * @task_setnice:
659 * Check permission before setting the nice value of @p to @nice.
660 * @p contains the task_struct of process.
661 * @nice contains the new nice value.
662 * Return 0 if permission is granted.
James Morris03e68062006-06-23 02:03:58 -0700663 * @task_setioprio
664 * Check permission before setting the ioprio value of @p to @ioprio.
665 * @p contains the task_struct of process.
666 * @ioprio contains the new ioprio value
667 * Return 0 if permission is granted.
David Quigleya1836a42006-06-30 01:55:49 -0700668 * @task_getioprio
669 * Check permission before getting the ioprio value of @p.
670 * @p contains the task_struct of process.
671 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672 * @task_setrlimit:
673 * Check permission before setting the resource limits of the current
674 * process for @resource to @new_rlim. The old resource limit values can
675 * be examined by dereferencing (current->signal->rlim + resource).
676 * @resource contains the resource whose limit is being set.
677 * @new_rlim contains the new limits for @resource.
678 * Return 0 if permission is granted.
679 * @task_setscheduler:
680 * Check permission before setting scheduling policy and/or parameters of
681 * process @p based on @policy and @lp.
682 * @p contains the task_struct for process.
683 * @policy contains the scheduling policy.
684 * @lp contains the scheduling parameters.
685 * Return 0 if permission is granted.
686 * @task_getscheduler:
687 * Check permission before obtaining scheduling information for process
688 * @p.
689 * @p contains the task_struct for process.
690 * Return 0 if permission is granted.
David Quigley35601542006-06-23 02:04:01 -0700691 * @task_movememory
692 * Check permission before moving memory owned by process @p.
693 * @p contains the task_struct for process.
694 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695 * @task_kill:
696 * Check permission before sending signal @sig to @p. @info can be NULL,
697 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
698 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
699 * from the kernel and should typically be permitted.
700 * SIGIO signals are handled separately by the send_sigiotask hook in
701 * file_security_ops.
702 * @p contains the task_struct for process.
703 * @info contains the signal information.
704 * @sig contains the signal value.
David Quigleyf9008e42006-06-30 01:55:46 -0700705 * @secid contains the sid of the process where the signal originated
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 * Return 0 if permission is granted.
707 * @task_wait:
708 * Check permission before allowing a process to reap a child process @p
709 * and collect its status information.
710 * @p contains the task_struct for process.
711 * Return 0 if permission is granted.
712 * @task_prctl:
713 * Check permission before performing a process control operation on the
714 * current process.
715 * @option contains the operation.
716 * @arg2 contains a argument.
717 * @arg3 contains a argument.
718 * @arg4 contains a argument.
719 * @arg5 contains a argument.
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -0700720 * @rc_p contains a pointer to communicate back the forced return code
721 * Return 0 if permission is granted, and non-zero if the security module
722 * has taken responsibility (setting *rc_p) for the prctl call.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723 * @task_reparent_to_init:
Eric Paris7b41b172008-04-23 14:10:25 -0400724 * Set the security attributes in @p->security for a kernel thread that
725 * is being reparented to the init task.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 * @p contains the task_struct for the kernel thread.
727 * @task_to_inode:
Eric Paris7b41b172008-04-23 14:10:25 -0400728 * Set the security attributes for an inode based on an associated task's
729 * security attributes, e.g. for /proc/pid inodes.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 * @p contains the task_struct for the task.
731 * @inode contains the inode structure for the inode.
732 *
733 * Security hooks for Netlink messaging.
734 *
735 * @netlink_send:
736 * Save security information for a netlink message so that permission
737 * checking can be performed when the message is processed. The security
738 * information can be saved using the eff_cap field of the
Eric Paris7b41b172008-04-23 14:10:25 -0400739 * netlink_skb_parms structure. Also may be used to provide fine
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 * grained control over message transmission.
741 * @sk associated sock of task sending the message.,
742 * @skb contains the sk_buff structure for the netlink message.
743 * Return 0 if the information was successfully saved and message
744 * is allowed to be transmitted.
745 * @netlink_recv:
746 * Check permission before processing the received netlink message in
747 * @skb.
748 * @skb contains the sk_buff structure for the netlink message.
Darrel Goeddelc7bdb542006-06-27 13:26:11 -0700749 * @cap indicates the capability required
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750 * Return 0 if permission is granted.
751 *
752 * Security hooks for Unix domain networking.
753 *
754 * @unix_stream_connect:
755 * Check permissions before establishing a Unix domain stream connection
756 * between @sock and @other.
757 * @sock contains the socket structure.
758 * @other contains the peer socket structure.
759 * Return 0 if permission is granted.
760 * @unix_may_send:
761 * Check permissions before connecting or sending datagrams from @sock to
762 * @other.
763 * @sock contains the socket structure.
764 * @sock contains the peer socket structure.
765 * Return 0 if permission is granted.
766 *
767 * The @unix_stream_connect and @unix_may_send hooks were necessary because
768 * Linux provides an alternative to the conventional file name space for Unix
769 * domain sockets. Whereas binding and connecting to sockets in the file name
770 * space is mediated by the typical file permissions (and caught by the mknod
771 * and permission hooks in inode_security_ops), binding and connecting to
772 * sockets in the abstract name space is completely unmediated. Sufficient
773 * control of Unix domain sockets in the abstract name space isn't possible
774 * using only the socket layer hooks, since we need to know the actual target
775 * socket, which is not looked up until we are inside the af_unix code.
776 *
777 * Security hooks for socket operations.
778 *
779 * @socket_create:
780 * Check permissions prior to creating a new socket.
781 * @family contains the requested protocol family.
782 * @type contains the requested communications type.
783 * @protocol contains the requested protocol.
784 * @kern set to 1 if a kernel socket.
785 * Return 0 if permission is granted.
786 * @socket_post_create:
787 * This hook allows a module to update or allocate a per-socket security
788 * structure. Note that the security field was not added directly to the
789 * socket structure, but rather, the socket security information is stored
790 * in the associated inode. Typically, the inode alloc_security hook will
791 * allocate and and attach security information to
792 * sock->inode->i_security. This hook may be used to update the
793 * sock->inode->i_security field with additional information that wasn't
794 * available when the inode was allocated.
795 * @sock contains the newly created socket structure.
796 * @family contains the requested protocol family.
797 * @type contains the requested communications type.
798 * @protocol contains the requested protocol.
799 * @kern set to 1 if a kernel socket.
800 * @socket_bind:
801 * Check permission before socket protocol layer bind operation is
802 * performed and the socket @sock is bound to the address specified in the
803 * @address parameter.
804 * @sock contains the socket structure.
805 * @address contains the address to bind to.
806 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400807 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808 * @socket_connect:
809 * Check permission before socket protocol layer connect operation
810 * attempts to connect socket @sock to a remote address, @address.
811 * @sock contains the socket structure.
812 * @address contains the address of remote endpoint.
813 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400814 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815 * @socket_listen:
816 * Check permission before socket protocol layer listen operation.
817 * @sock contains the socket structure.
818 * @backlog contains the maximum length for the pending connection queue.
819 * Return 0 if permission is granted.
820 * @socket_accept:
821 * Check permission before accepting a new connection. Note that the new
822 * socket, @newsock, has been created and some information copied to it,
823 * but the accept operation has not actually been performed.
824 * @sock contains the listening socket structure.
825 * @newsock contains the newly created server socket for connection.
826 * Return 0 if permission is granted.
827 * @socket_post_accept:
828 * This hook allows a security module to copy security
829 * information into the newly created socket's inode.
830 * @sock contains the listening socket structure.
831 * @newsock contains the newly created server socket for connection.
832 * @socket_sendmsg:
833 * Check permission before transmitting a message to another socket.
834 * @sock contains the socket structure.
835 * @msg contains the message to be transmitted.
836 * @size contains the size of message.
837 * Return 0 if permission is granted.
838 * @socket_recvmsg:
839 * Check permission before receiving a message from a socket.
840 * @sock contains the socket structure.
841 * @msg contains the message structure.
842 * @size contains the size of message structure.
843 * @flags contains the operational flags.
Eric Paris7b41b172008-04-23 14:10:25 -0400844 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 * @socket_getsockname:
846 * Check permission before the local address (name) of the socket object
847 * @sock is retrieved.
848 * @sock contains the socket structure.
849 * Return 0 if permission is granted.
850 * @socket_getpeername:
851 * Check permission before the remote address (name) of a socket object
852 * @sock is retrieved.
853 * @sock contains the socket structure.
854 * Return 0 if permission is granted.
855 * @socket_getsockopt:
856 * Check permissions before retrieving the options associated with socket
857 * @sock.
858 * @sock contains the socket structure.
859 * @level contains the protocol level to retrieve option from.
860 * @optname contains the name of option to retrieve.
861 * Return 0 if permission is granted.
862 * @socket_setsockopt:
863 * Check permissions before setting the options associated with socket
864 * @sock.
865 * @sock contains the socket structure.
866 * @level contains the protocol level to set options for.
867 * @optname contains the name of the option to set.
Eric Paris7b41b172008-04-23 14:10:25 -0400868 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869 * @socket_shutdown:
870 * Checks permission before all or part of a connection on the socket
871 * @sock is shut down.
872 * @sock contains the socket structure.
873 * @how contains the flag indicating how future sends and receives are handled.
874 * Return 0 if permission is granted.
875 * @socket_sock_rcv_skb:
876 * Check permissions on incoming network packets. This hook is distinct
877 * from Netfilter's IP input hooks since it is the first time that the
878 * incoming sk_buff @skb has been associated with a particular socket, @sk.
879 * @sk contains the sock (not socket) associated with the incoming sk_buff.
880 * @skb contains the incoming network data.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200881 * @socket_getpeersec_stream:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882 * This hook allows the security module to provide peer socket security
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200883 * state for unix or connected tcp sockets to userspace via getsockopt
884 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
885 * socket is associated with an ipsec SA.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886 * @sock is the local socket.
887 * @optval userspace memory where the security state is to be copied.
888 * @optlen userspace int where the module should copy the actual length
889 * of the security state.
890 * @len as input is the maximum length to copy to userspace provided
891 * by the caller.
892 * Return 0 if all is well, otherwise, typical getsockopt return
893 * values.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200894 * @socket_getpeersec_dgram:
Eric Paris7b41b172008-04-23 14:10:25 -0400895 * This hook allows the security module to provide peer socket security
896 * state for udp sockets on a per-packet basis to userspace via
897 * getsockopt SO_GETPEERSEC. The application must first have indicated
898 * the IP_PASSSEC option via getsockopt. It can then retrieve the
899 * security state returned by this hook for a packet via the SCM_SECURITY
900 * ancillary message type.
901 * @skb is the skbuff for the packet being queried
902 * @secdata is a pointer to a buffer in which to copy the security data
903 * @seclen is the maximum length for @secdata
904 * Return 0 on success, error on failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905 * @sk_alloc_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400906 * Allocate and attach a security structure to the sk->sk_security field,
907 * which is used to copy security attributes between local stream sockets.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908 * @sk_free_security:
909 * Deallocate security structure.
Venkat Yekkirala892c1412006-08-04 23:08:56 -0700910 * @sk_clone_security:
911 * Clone/copy security structure.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700912 * @sk_getsecid:
913 * Retrieve the LSM-specific secid for the sock to enable caching of network
Trent Jaegerdf718372005-12-13 23:12:27 -0800914 * authorizations.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700915 * @sock_graft:
916 * Sets the socket's isec sid to the sock's sid.
917 * @inet_conn_request:
918 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
919 * @inet_csk_clone:
920 * Sets the new child socket's sid to the openreq sid.
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600921 * @inet_conn_established:
Eric Paris7b41b172008-04-23 14:10:25 -0400922 * Sets the connection's peersid to the secmark on skb.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700923 * @req_classify_flow:
924 * Sets the flow's sid to the openreq sid.
Trent Jaegerdf718372005-12-13 23:12:27 -0800925 *
926 * Security hooks for XFRM operations.
927 *
928 * @xfrm_policy_alloc_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700929 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
930 * Database used by the XFRM system.
Trent Jaegerdf718372005-12-13 23:12:27 -0800931 * @sec_ctx contains the security context information being provided by
932 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700933 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600934 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -0800935 * Return 0 if operation was successful (memory to allocate, legal context)
936 * @xfrm_policy_clone_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700937 * @old_ctx contains an existing xfrm_sec_ctx.
938 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
939 * Allocate a security structure in new_ctxp that contains the
940 * information from the old_ctx structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800941 * Return 0 if operation was successful (memory to allocate).
942 * @xfrm_policy_free_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700943 * @ctx contains the xfrm_sec_ctx
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700944 * Deallocate xp->security.
945 * @xfrm_policy_delete_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700946 * @ctx contains the xfrm_sec_ctx.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700947 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800948 * @xfrm_state_alloc_security:
949 * @x contains the xfrm_state being added to the Security Association
950 * Database by the XFRM system.
951 * @sec_ctx contains the security context information being provided by
952 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700953 * @secid contains the secid from which to take the mls portion of the context.
954 * Allocate a security structure to the x->security field; the security
955 * field is initialized to NULL when the xfrm_state is allocated. Set the
956 * context to correspond to either sec_ctx or polsec, with the mls portion
957 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -0800958 * Return 0 if operation was successful (memory to allocate, legal context).
959 * @xfrm_state_free_security:
960 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700961 * Deallocate x->security.
962 * @xfrm_state_delete_security:
963 * @x contains the xfrm_state.
964 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800965 * @xfrm_policy_lookup:
Paul Moore03e1ad72008-04-12 19:07:52 -0700966 * @ctx contains the xfrm_sec_ctx for which the access control is being
Trent Jaegerdf718372005-12-13 23:12:27 -0800967 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700968 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -0800969 * access to the policy xp.
970 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700971 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -0800972 * XFRMs on a packet. The hook is called when selecting either a
973 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -0500974 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
975 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700976 * @xfrm_state_pol_flow_match:
977 * @x contains the state to match.
978 * @xp contains the policy to check for a match.
979 * @fl contains the flow to check for a match.
980 * Return 1 if there is a match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700981 * @xfrm_decode_session:
982 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700983 * @secid points to the flow key secid to set.
984 * @ckall says if all xfrms used should be checked for same secid.
985 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986 *
David Howells29db9192005-10-30 15:02:44 -0800987 * Security hooks affecting all Key Management operations
988 *
989 * @key_alloc:
990 * Permit allocation of a key and assign security data. Note that key does
991 * not have a serial number assigned at this point.
992 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -0700993 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -0800994 * Return 0 if permission is granted, -ve error otherwise.
995 * @key_free:
996 * Notification of destruction; free security data.
997 * @key points to the key.
998 * No return value.
999 * @key_permission:
1000 * See whether a specific operational right is granted to a process on a
Eric Paris7b41b172008-04-23 14:10:25 -04001001 * key.
David Howells29db9192005-10-30 15:02:44 -08001002 * @key_ref refers to the key (key pointer + possession attribute bit).
1003 * @context points to the process to provide the context against which to
Eric Paris7b41b172008-04-23 14:10:25 -04001004 * evaluate the security data on the key.
David Howells29db9192005-10-30 15:02:44 -08001005 * @perm describes the combination of permissions required of this key.
1006 * Return 1 if permission granted, 0 if permission denied and -ve it the
Eric Paris7b41b172008-04-23 14:10:25 -04001007 * normal permissions model should be effected.
David Howells70a5bb72008-04-29 01:01:26 -07001008 * @key_getsecurity:
1009 * Get a textual representation of the security context attached to a key
1010 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1011 * allocates the storage for the NUL-terminated string and the caller
1012 * should free it.
1013 * @key points to the key to be queried.
1014 * @_buffer points to a pointer that should be set to point to the
1015 * resulting string (if no label or an error occurs).
1016 * Return the length of the string (including terminating NUL) or -ve if
1017 * an error.
1018 * May also return 0 (and a NULL buffer pointer) if there is no label.
David Howells29db9192005-10-30 15:02:44 -08001019 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020 * Security hooks affecting all System V IPC operations.
1021 *
1022 * @ipc_permission:
1023 * Check permissions for access to IPC
1024 * @ipcp contains the kernel IPC permission structure
1025 * @flag contains the desired (requested) permission set
1026 * Return 0 if permission is granted.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001027 * @ipc_getsecid:
1028 * Get the secid associated with the ipc object.
1029 * @ipcp contains the kernel IPC permission structure.
1030 * @secid contains a pointer to the location where result will be saved.
1031 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032 *
1033 * Security hooks for individual messages held in System V IPC message queues
1034 * @msg_msg_alloc_security:
1035 * Allocate and attach a security structure to the msg->security field.
1036 * The security field is initialized to NULL when the structure is first
1037 * created.
1038 * @msg contains the message structure to be modified.
1039 * Return 0 if operation was successful and permission is granted.
1040 * @msg_msg_free_security:
1041 * Deallocate the security structure for this message.
1042 * @msg contains the message structure to be modified.
1043 *
1044 * Security hooks for System V IPC Message Queues
1045 *
1046 * @msg_queue_alloc_security:
1047 * Allocate and attach a security structure to the
1048 * msq->q_perm.security field. The security field is initialized to
1049 * NULL when the structure is first created.
1050 * @msq contains the message queue structure to be modified.
1051 * Return 0 if operation was successful and permission is granted.
1052 * @msg_queue_free_security:
1053 * Deallocate security structure for this message queue.
1054 * @msq contains the message queue structure to be modified.
1055 * @msg_queue_associate:
1056 * Check permission when a message queue is requested through the
1057 * msgget system call. This hook is only called when returning the
1058 * message queue identifier for an existing message queue, not when a
1059 * new message queue is created.
1060 * @msq contains the message queue to act upon.
1061 * @msqflg contains the operation control flags.
1062 * Return 0 if permission is granted.
1063 * @msg_queue_msgctl:
1064 * Check permission when a message control operation specified by @cmd
1065 * is to be performed on the message queue @msq.
1066 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1067 * @msq contains the message queue to act upon. May be NULL.
1068 * @cmd contains the operation to be performed.
Eric Paris7b41b172008-04-23 14:10:25 -04001069 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070 * @msg_queue_msgsnd:
1071 * Check permission before a message, @msg, is enqueued on the message
1072 * queue, @msq.
1073 * @msq contains the message queue to send message to.
1074 * @msg contains the message to be enqueued.
1075 * @msqflg contains operational flags.
1076 * Return 0 if permission is granted.
1077 * @msg_queue_msgrcv:
1078 * Check permission before a message, @msg, is removed from the message
Eric Paris7b41b172008-04-23 14:10:25 -04001079 * queue, @msq. The @target task structure contains a pointer to the
1080 * process that will be receiving the message (not equal to the current
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 * process when inline receives are being performed).
1082 * @msq contains the message queue to retrieve message from.
1083 * @msg contains the message destination.
1084 * @target contains the task structure for recipient process.
1085 * @type contains the type of message requested.
1086 * @mode contains the operational flags.
1087 * Return 0 if permission is granted.
1088 *
1089 * Security hooks for System V Shared Memory Segments
1090 *
1091 * @shm_alloc_security:
1092 * Allocate and attach a security structure to the shp->shm_perm.security
1093 * field. The security field is initialized to NULL when the structure is
1094 * first created.
1095 * @shp contains the shared memory structure to be modified.
1096 * Return 0 if operation was successful and permission is granted.
1097 * @shm_free_security:
1098 * Deallocate the security struct for this memory segment.
1099 * @shp contains the shared memory structure to be modified.
1100 * @shm_associate:
1101 * Check permission when a shared memory region is requested through the
1102 * shmget system call. This hook is only called when returning the shared
1103 * memory region identifier for an existing region, not when a new shared
1104 * memory region is created.
1105 * @shp contains the shared memory structure to be modified.
1106 * @shmflg contains the operation control flags.
1107 * Return 0 if permission is granted.
1108 * @shm_shmctl:
1109 * Check permission when a shared memory control operation specified by
1110 * @cmd is to be performed on the shared memory region @shp.
1111 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1112 * @shp contains shared memory structure to be modified.
1113 * @cmd contains the operation to be performed.
1114 * Return 0 if permission is granted.
1115 * @shm_shmat:
1116 * Check permissions prior to allowing the shmat system call to attach the
1117 * shared memory segment @shp to the data segment of the calling process.
1118 * The attaching address is specified by @shmaddr.
1119 * @shp contains the shared memory structure to be modified.
1120 * @shmaddr contains the address to attach memory region to.
1121 * @shmflg contains the operational flags.
1122 * Return 0 if permission is granted.
1123 *
1124 * Security hooks for System V Semaphores
1125 *
1126 * @sem_alloc_security:
1127 * Allocate and attach a security structure to the sma->sem_perm.security
1128 * field. The security field is initialized to NULL when the structure is
1129 * first created.
1130 * @sma contains the semaphore structure
1131 * Return 0 if operation was successful and permission is granted.
1132 * @sem_free_security:
1133 * deallocate security struct for this semaphore
1134 * @sma contains the semaphore structure.
1135 * @sem_associate:
1136 * Check permission when a semaphore is requested through the semget
1137 * system call. This hook is only called when returning the semaphore
1138 * identifier for an existing semaphore, not when a new one must be
1139 * created.
1140 * @sma contains the semaphore structure.
1141 * @semflg contains the operation control flags.
1142 * Return 0 if permission is granted.
1143 * @sem_semctl:
1144 * Check permission when a semaphore operation specified by @cmd is to be
Eric Paris7b41b172008-04-23 14:10:25 -04001145 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146 * IPC_INFO or SEM_INFO.
1147 * @sma contains the semaphore structure. May be NULL.
1148 * @cmd contains the operation to be performed.
1149 * Return 0 if permission is granted.
1150 * @sem_semop
1151 * Check permissions before performing operations on members of the
Eric Paris7b41b172008-04-23 14:10:25 -04001152 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1153 * may be modified.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 * @sma contains the semaphore structure.
1155 * @sops contains the operations to perform.
1156 * @nsops contains the number of operations to perform.
1157 * @alter contains the flag indicating whether changes are to be made.
1158 * Return 0 if permission is granted.
1159 *
David Howells5cd9c582008-08-14 11:37:28 +01001160 * @ptrace_may_access:
1161 * Check permission before allowing the current process to trace the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162 * @child process.
1163 * Security modules may also want to perform a process tracing check
1164 * during an execve in the set_security or apply_creds hooks of
1165 * binprm_security_ops if the process is being traced and its security
1166 * attributes would be changed by the execve.
David Howells5cd9c582008-08-14 11:37:28 +01001167 * @child contains the task_struct structure for the target process.
Stephen Smalley006ebb42008-05-19 08:32:49 -04001168 * @mode contains the PTRACE_MODE flags indicating the form of access.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169 * Return 0 if permission is granted.
David Howells5cd9c582008-08-14 11:37:28 +01001170 * @ptrace_traceme:
1171 * Check that the @parent process has sufficient permission to trace the
1172 * current process before allowing the current process to present itself
1173 * to the @parent process for tracing.
1174 * The parent process will still have to undergo the ptrace_may_access
1175 * checks before it is allowed to trace this one.
1176 * @parent contains the task_struct structure for debugger process.
1177 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178 * @capget:
1179 * Get the @effective, @inheritable, and @permitted capability sets for
1180 * the @target process. The hook may also perform permission checking to
1181 * determine if the current process is allowed to see the capability sets
1182 * of the @target process.
1183 * @target contains the task_struct structure for target process.
1184 * @effective contains the effective capability set.
1185 * @inheritable contains the inheritable capability set.
1186 * @permitted contains the permitted capability set.
1187 * Return 0 if the capability sets were successfully obtained.
1188 * @capset_check:
1189 * Check permission before setting the @effective, @inheritable, and
1190 * @permitted capability sets for the @target process.
1191 * Caveat: @target is also set to current if a set of processes is
1192 * specified (i.e. all processes other than current and init or a
1193 * particular process group). Hence, the capset_set hook may need to
1194 * revalidate permission to the actual target process.
1195 * @target contains the task_struct structure for target process.
1196 * @effective contains the effective capability set.
1197 * @inheritable contains the inheritable capability set.
1198 * @permitted contains the permitted capability set.
1199 * Return 0 if permission is granted.
1200 * @capset_set:
1201 * Set the @effective, @inheritable, and @permitted capability sets for
1202 * the @target process. Since capset_check cannot always check permission
1203 * to the real @target process, this hook may also perform permission
1204 * checking to determine if the current process is allowed to set the
1205 * capability sets of the @target process. However, this hook has no way
1206 * of returning an error due to the structure of the sys_capset code.
1207 * @target contains the task_struct structure for target process.
1208 * @effective contains the effective capability set.
1209 * @inheritable contains the inheritable capability set.
1210 * @permitted contains the permitted capability set.
Chris Wright12b59892006-03-25 03:07:41 -08001211 * @capable:
1212 * Check whether the @tsk process has the @cap capability.
1213 * @tsk contains the task_struct for the process.
1214 * @cap contains the capability <include/linux/capability.h>.
1215 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216 * @acct:
1217 * Check permission before enabling or disabling process accounting. If
1218 * accounting is being enabled, then @file refers to the open file used to
1219 * store accounting records. If accounting is being disabled, then @file
1220 * is NULL.
1221 * @file contains the file structure for the accounting file (may be NULL).
1222 * Return 0 if permission is granted.
1223 * @sysctl:
1224 * Check permission before accessing the @table sysctl variable in the
1225 * manner specified by @op.
1226 * @table contains the ctl_table structure for the sysctl variable.
1227 * @op contains the operation (001 = search, 002 = write, 004 = read).
1228 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 * @syslog:
1230 * Check permission before accessing the kernel message ring or changing
1231 * logging to the console.
Eric Paris7b41b172008-04-23 14:10:25 -04001232 * See the syslog(2) manual page for an explanation of the @type values.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001233 * @type contains the type of action.
1234 * Return 0 if permission is granted.
1235 * @settime:
1236 * Check permission to change the system time.
1237 * struct timespec and timezone are defined in include/linux/time.h
1238 * @ts contains new time
1239 * @tz contains new timezone
1240 * Return 0 if permission is granted.
1241 * @vm_enough_memory:
1242 * Check permissions for allocating a new virtual mapping.
Alan Cox34b4e4a2007-08-22 14:01:28 -07001243 * @mm contains the mm struct it is being added to.
Eric Paris7b41b172008-04-23 14:10:25 -04001244 * @pages contains the number of pages.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245 * Return 0 if permission is granted.
1246 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001247 * @secid_to_secctx:
1248 * Convert secid to security context.
1249 * @secid contains the security ID.
1250 * @secdata contains the pointer that stores the converted security context.
David Howells63cb3442008-01-15 23:47:35 +00001251 * @secctx_to_secid:
Eric Paris7b41b172008-04-23 14:10:25 -04001252 * Convert security context to secid.
1253 * @secid contains the pointer to the generated security ID.
1254 * @secdata contains the security context.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001255 *
1256 * @release_secctx:
1257 * Release the security context.
1258 * @secdata contains the security context.
1259 * @seclen contains the length of the security context.
1260 *
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001261 * Security hooks for Audit
1262 *
1263 * @audit_rule_init:
1264 * Allocate and initialize an LSM audit rule structure.
1265 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1266 * @op contains the operator the rule uses.
1267 * @rulestr contains the context where the rule will be applied to.
1268 * @lsmrule contains a pointer to receive the result.
1269 * Return 0 if @lsmrule has been successfully set,
1270 * -EINVAL in case of an invalid rule.
1271 *
1272 * @audit_rule_known:
1273 * Specifies whether given @rule contains any fields related to current LSM.
1274 * @rule contains the audit rule of interest.
1275 * Return 1 in case of relation found, 0 otherwise.
1276 *
1277 * @audit_rule_match:
1278 * Determine if given @secid matches a rule previously approved
1279 * by @audit_rule_known.
1280 * @secid contains the security id in question.
1281 * @field contains the field which relates to current LSM.
1282 * @op contains the operator that will be used for matching.
1283 * @rule points to the audit rule that will be checked against.
1284 * @actx points to the audit context associated with the check.
1285 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1286 *
1287 * @audit_rule_free:
1288 * Deallocate the LSM audit rule structure previously allocated by
1289 * audit_rule_init.
1290 * @rule contains the allocated rule
1291 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292 * This is the main security structure.
1293 */
1294struct security_operations {
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001295 char name[SECURITY_NAME_MAX + 1];
1296
David Howells5cd9c582008-08-14 11:37:28 +01001297 int (*ptrace_may_access) (struct task_struct *child, unsigned int mode);
1298 int (*ptrace_traceme) (struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -04001299 int (*capget) (struct task_struct *target,
1300 kernel_cap_t *effective,
1301 kernel_cap_t *inheritable, kernel_cap_t *permitted);
1302 int (*capset_check) (struct task_struct *target,
1303 kernel_cap_t *effective,
1304 kernel_cap_t *inheritable,
1305 kernel_cap_t *permitted);
1306 void (*capset_set) (struct task_struct *target,
1307 kernel_cap_t *effective,
1308 kernel_cap_t *inheritable,
1309 kernel_cap_t *permitted);
1310 int (*capable) (struct task_struct *tsk, int cap);
1311 int (*acct) (struct file *file);
1312 int (*sysctl) (struct ctl_table *table, int op);
1313 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1314 int (*quota_on) (struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315 int (*syslog) (int type);
1316 int (*settime) (struct timespec *ts, struct timezone *tz);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001317 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318
Eric Paris7b41b172008-04-23 14:10:25 -04001319 int (*bprm_alloc_security) (struct linux_binprm *bprm);
1320 void (*bprm_free_security) (struct linux_binprm *bprm);
1321 void (*bprm_apply_creds) (struct linux_binprm *bprm, int unsafe);
1322 void (*bprm_post_apply_creds) (struct linux_binprm *bprm);
1323 int (*bprm_set_security) (struct linux_binprm *bprm);
1324 int (*bprm_check_security) (struct linux_binprm *bprm);
1325 int (*bprm_secureexec) (struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326
Eric Paris7b41b172008-04-23 14:10:25 -04001327 int (*sb_alloc_security) (struct super_block *sb);
1328 void (*sb_free_security) (struct super_block *sb);
1329 int (*sb_copy_data) (char *orig, char *copy);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330 int (*sb_kern_mount) (struct super_block *sb, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001331 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
David Howells726c3342006-06-23 02:02:58 -07001332 int (*sb_statfs) (struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001333 int (*sb_mount) (char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 char *type, unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001335 int (*sb_check_sb) (struct vfsmount *mnt, struct path *path);
1336 int (*sb_umount) (struct vfsmount *mnt, int flags);
1337 void (*sb_umount_close) (struct vfsmount *mnt);
1338 void (*sb_umount_busy) (struct vfsmount *mnt);
1339 void (*sb_post_remount) (struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340 unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001341 void (*sb_post_addmount) (struct vfsmount *mnt,
Al Virob5266eb2008-03-22 17:48:24 -04001342 struct path *mountpoint);
1343 int (*sb_pivotroot) (struct path *old_path,
1344 struct path *new_path);
1345 void (*sb_post_pivotroot) (struct path *old_path,
1346 struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001347 int (*sb_set_mnt_opts) (struct super_block *sb,
1348 struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001349 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1350 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001351 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352
Eric Paris7b41b172008-04-23 14:10:25 -04001353 int (*inode_alloc_security) (struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001355 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1356 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357 int (*inode_create) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001358 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359 int (*inode_link) (struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001360 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1362 int (*inode_symlink) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001363 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1366 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001367 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001369 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370 int (*inode_readlink) (struct dentry *dentry);
1371 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001372 int (*inode_permission) (struct inode *inode, int mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1374 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001375 void (*inode_delete) (struct inode *inode);
David Howells8f0cfa52008-04-29 00:59:41 -07001376 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1377 const void *value, size_t size, int flags);
1378 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1379 const void *value, size_t size, int flags);
1380 int (*inode_getxattr) (struct dentry *dentry, const char *name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 int (*inode_listxattr) (struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001382 int (*inode_removexattr) (struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001383 int (*inode_need_killpriv) (struct dentry *dentry);
1384 int (*inode_killpriv) (struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001385 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1386 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1387 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1388 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389
Eric Paris7b41b172008-04-23 14:10:25 -04001390 int (*file_permission) (struct file *file, int mask);
1391 int (*file_alloc_security) (struct file *file);
1392 void (*file_free_security) (struct file *file);
1393 int (*file_ioctl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001395 int (*file_mmap) (struct file *file,
Eric Parised032182007-06-28 15:55:21 -04001396 unsigned long reqprot, unsigned long prot,
1397 unsigned long flags, unsigned long addr,
1398 unsigned long addr_only);
Eric Paris7b41b172008-04-23 14:10:25 -04001399 int (*file_mprotect) (struct vm_area_struct *vma,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400 unsigned long reqprot,
1401 unsigned long prot);
Eric Paris7b41b172008-04-23 14:10:25 -04001402 int (*file_lock) (struct file *file, unsigned int cmd);
1403 int (*file_fcntl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001405 int (*file_set_fowner) (struct file *file);
1406 int (*file_send_sigiotask) (struct task_struct *tsk,
1407 struct fown_struct *fown, int sig);
1408 int (*file_receive) (struct file *file);
1409 int (*dentry_open) (struct file *file);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410
1411 int (*task_create) (unsigned long clone_flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001412 int (*task_alloc_security) (struct task_struct *p);
1413 void (*task_free_security) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1415 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1416 uid_t old_euid, uid_t old_suid, int flags);
1417 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001418 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1419 int (*task_getpgid) (struct task_struct *p);
1420 int (*task_getsid) (struct task_struct *p);
1421 void (*task_getsecid) (struct task_struct *p, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422 int (*task_setgroups) (struct group_info *group_info);
Eric Paris7b41b172008-04-23 14:10:25 -04001423 int (*task_setnice) (struct task_struct *p, int nice);
1424 int (*task_setioprio) (struct task_struct *p, int ioprio);
1425 int (*task_getioprio) (struct task_struct *p);
1426 int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim);
1427 int (*task_setscheduler) (struct task_struct *p, int policy,
1428 struct sched_param *lp);
1429 int (*task_getscheduler) (struct task_struct *p);
1430 int (*task_movememory) (struct task_struct *p);
1431 int (*task_kill) (struct task_struct *p,
1432 struct siginfo *info, int sig, u32 secid);
1433 int (*task_wait) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434 int (*task_prctl) (int option, unsigned long arg2,
1435 unsigned long arg3, unsigned long arg4,
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -07001436 unsigned long arg5, long *rc_p);
Eric Paris7b41b172008-04-23 14:10:25 -04001437 void (*task_reparent_to_init) (struct task_struct *p);
1438 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439
Eric Paris7b41b172008-04-23 14:10:25 -04001440 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001441 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001442
Eric Paris7b41b172008-04-23 14:10:25 -04001443 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1444 void (*msg_msg_free_security) (struct msg_msg *msg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445
Eric Paris7b41b172008-04-23 14:10:25 -04001446 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1447 void (*msg_queue_free_security) (struct msg_queue *msq);
1448 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1449 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1450 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1451 struct msg_msg *msg, int msqflg);
1452 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1453 struct msg_msg *msg,
1454 struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455 long type, int mode);
1456
Eric Paris7b41b172008-04-23 14:10:25 -04001457 int (*shm_alloc_security) (struct shmid_kernel *shp);
1458 void (*shm_free_security) (struct shmid_kernel *shp);
1459 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1460 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1461 int (*shm_shmat) (struct shmid_kernel *shp,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462 char __user *shmaddr, int shmflg);
1463
Eric Paris7b41b172008-04-23 14:10:25 -04001464 int (*sem_alloc_security) (struct sem_array *sma);
1465 void (*sem_free_security) (struct sem_array *sma);
1466 int (*sem_associate) (struct sem_array *sma, int semflg);
1467 int (*sem_semctl) (struct sem_array *sma, int cmd);
1468 int (*sem_semop) (struct sem_array *sma,
1469 struct sembuf *sops, unsigned nsops, int alter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470
Eric Paris7b41b172008-04-23 14:10:25 -04001471 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1472 int (*netlink_recv) (struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1475
Eric Paris7b41b172008-04-23 14:10:25 -04001476 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1477 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1478 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001479 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001480 void (*release_secctx) (char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481
1482#ifdef CONFIG_SECURITY_NETWORK
Eric Paris7b41b172008-04-23 14:10:25 -04001483 int (*unix_stream_connect) (struct socket *sock,
1484 struct socket *other, struct sock *newsk);
1485 int (*unix_may_send) (struct socket *sock, struct socket *other);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486
1487 int (*socket_create) (int family, int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001488 int (*socket_post_create) (struct socket *sock, int family,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001489 int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001490 int (*socket_bind) (struct socket *sock,
1491 struct sockaddr *address, int addrlen);
1492 int (*socket_connect) (struct socket *sock,
1493 struct sockaddr *address, int addrlen);
1494 int (*socket_listen) (struct socket *sock, int backlog);
1495 int (*socket_accept) (struct socket *sock, struct socket *newsock);
1496 void (*socket_post_accept) (struct socket *sock,
1497 struct socket *newsock);
1498 int (*socket_sendmsg) (struct socket *sock,
1499 struct msghdr *msg, int size);
1500 int (*socket_recvmsg) (struct socket *sock,
1501 struct msghdr *msg, int size, int flags);
1502 int (*socket_getsockname) (struct socket *sock);
1503 int (*socket_getpeername) (struct socket *sock);
1504 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1505 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1506 int (*socket_shutdown) (struct socket *sock, int how);
1507 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001508 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001509 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001510 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001512 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001513 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001514 void (*sock_graft) (struct sock *sk, struct socket *parent);
1515 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1516 struct request_sock *req);
1517 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1518 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1519 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001521
Trent Jaegerdf718372005-12-13 23:12:27 -08001522#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moore03e1ad72008-04-12 19:07:52 -07001523 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001524 struct xfrm_user_sec_ctx *sec_ctx);
Paul Moore03e1ad72008-04-12 19:07:52 -07001525 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1526 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1527 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001528 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001529 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001530 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001531 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001532 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Eric Paris7b41b172008-04-23 14:10:25 -04001533 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1534 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1535 struct xfrm_policy *xp,
1536 struct flowi *fl);
1537 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001538#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1539
David Howells29db9192005-10-30 15:02:44 -08001540 /* key management security hooks */
1541#ifdef CONFIG_KEYS
Eric Paris7b41b172008-04-23 14:10:25 -04001542 int (*key_alloc) (struct key *key, struct task_struct *tsk, unsigned long flags);
1543 void (*key_free) (struct key *key);
1544 int (*key_permission) (key_ref_t key_ref,
1545 struct task_struct *context,
1546 key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07001547 int (*key_getsecurity)(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08001548#endif /* CONFIG_KEYS */
1549
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001550#ifdef CONFIG_AUDIT
Eric Paris7b41b172008-04-23 14:10:25 -04001551 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1552 int (*audit_rule_known) (struct audit_krule *krule);
1553 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1554 struct audit_context *actx);
1555 void (*audit_rule_free) (void *lsmrule);
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001556#endif /* CONFIG_AUDIT */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557};
1558
Linus Torvalds1da177e2005-04-16 15:20:36 -07001559/* prototypes */
Eric Paris7b41b172008-04-23 14:10:25 -04001560extern int security_init(void);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001561extern int security_module_enable(struct security_operations *ops);
Eric Paris7b41b172008-04-23 14:10:25 -04001562extern int register_security(struct security_operations *ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001563
James Morris20510f22007-10-16 23:31:32 -07001564/* Security operations */
David Howells5cd9c582008-08-14 11:37:28 +01001565int security_ptrace_may_access(struct task_struct *child, unsigned int mode);
1566int security_ptrace_traceme(struct task_struct *parent);
James Morris20510f22007-10-16 23:31:32 -07001567int security_capget(struct task_struct *target,
Eric Paris7b41b172008-04-23 14:10:25 -04001568 kernel_cap_t *effective,
1569 kernel_cap_t *inheritable,
1570 kernel_cap_t *permitted);
James Morris20510f22007-10-16 23:31:32 -07001571int security_capset_check(struct task_struct *target,
James Morris20510f22007-10-16 23:31:32 -07001572 kernel_cap_t *effective,
1573 kernel_cap_t *inheritable,
1574 kernel_cap_t *permitted);
Eric Paris7b41b172008-04-23 14:10:25 -04001575void security_capset_set(struct task_struct *target,
1576 kernel_cap_t *effective,
1577 kernel_cap_t *inheritable,
1578 kernel_cap_t *permitted);
James Morris20510f22007-10-16 23:31:32 -07001579int security_capable(struct task_struct *tsk, int cap);
1580int security_acct(struct file *file);
1581int security_sysctl(struct ctl_table *table, int op);
1582int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1583int security_quota_on(struct dentry *dentry);
1584int security_syslog(int type);
1585int security_settime(struct timespec *ts, struct timezone *tz);
1586int security_vm_enough_memory(long pages);
1587int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
Alan Cox731572d2008-10-29 14:01:20 -07001588int security_vm_enough_memory_kern(long pages);
James Morris20510f22007-10-16 23:31:32 -07001589int security_bprm_alloc(struct linux_binprm *bprm);
1590void security_bprm_free(struct linux_binprm *bprm);
1591void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
1592void security_bprm_post_apply_creds(struct linux_binprm *bprm);
1593int security_bprm_set(struct linux_binprm *bprm);
1594int security_bprm_check(struct linux_binprm *bprm);
1595int security_bprm_secureexec(struct linux_binprm *bprm);
1596int security_sb_alloc(struct super_block *sb);
1597void security_sb_free(struct super_block *sb);
Eric Parise0007522008-03-05 10:31:54 -05001598int security_sb_copy_data(char *orig, char *copy);
James Morris20510f22007-10-16 23:31:32 -07001599int security_sb_kern_mount(struct super_block *sb, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001600int security_sb_show_options(struct seq_file *m, struct super_block *sb);
James Morris20510f22007-10-16 23:31:32 -07001601int security_sb_statfs(struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001602int security_sb_mount(char *dev_name, struct path *path,
Eric Paris7b41b172008-04-23 14:10:25 -04001603 char *type, unsigned long flags, void *data);
Al Virob5266eb2008-03-22 17:48:24 -04001604int security_sb_check_sb(struct vfsmount *mnt, struct path *path);
James Morris20510f22007-10-16 23:31:32 -07001605int security_sb_umount(struct vfsmount *mnt, int flags);
1606void security_sb_umount_close(struct vfsmount *mnt);
1607void security_sb_umount_busy(struct vfsmount *mnt);
1608void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data);
Al Virob5266eb2008-03-22 17:48:24 -04001609void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
1610int security_sb_pivotroot(struct path *old_path, struct path *new_path);
1611void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001612int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001613void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1614 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001615int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001616
James Morris20510f22007-10-16 23:31:32 -07001617int security_inode_alloc(struct inode *inode);
1618void security_inode_free(struct inode *inode);
1619int security_inode_init_security(struct inode *inode, struct inode *dir,
1620 char **name, void **value, size_t *len);
1621int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1622int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1623 struct dentry *new_dentry);
1624int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1625int security_inode_symlink(struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001626 const char *old_name);
James Morris20510f22007-10-16 23:31:32 -07001627int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1628int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1629int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1630int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001631 struct inode *new_dir, struct dentry *new_dentry);
James Morris20510f22007-10-16 23:31:32 -07001632int security_inode_readlink(struct dentry *dentry);
1633int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001634int security_inode_permission(struct inode *inode, int mask);
James Morris20510f22007-10-16 23:31:32 -07001635int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1636int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
1637void security_inode_delete(struct inode *inode);
David Howells8f0cfa52008-04-29 00:59:41 -07001638int security_inode_setxattr(struct dentry *dentry, const char *name,
1639 const void *value, size_t size, int flags);
1640void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1641 const void *value, size_t size, int flags);
1642int security_inode_getxattr(struct dentry *dentry, const char *name);
James Morris20510f22007-10-16 23:31:32 -07001643int security_inode_listxattr(struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001644int security_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001645int security_inode_need_killpriv(struct dentry *dentry);
1646int security_inode_killpriv(struct dentry *dentry);
David P. Quigley42492592008-02-04 22:29:39 -08001647int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
James Morris20510f22007-10-16 23:31:32 -07001648int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1649int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001650void security_inode_getsecid(const struct inode *inode, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001651int security_file_permission(struct file *file, int mask);
1652int security_file_alloc(struct file *file);
1653void security_file_free(struct file *file);
1654int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1655int security_file_mmap(struct file *file, unsigned long reqprot,
1656 unsigned long prot, unsigned long flags,
1657 unsigned long addr, unsigned long addr_only);
1658int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
Eric Paris7b41b172008-04-23 14:10:25 -04001659 unsigned long prot);
James Morris20510f22007-10-16 23:31:32 -07001660int security_file_lock(struct file *file, unsigned int cmd);
1661int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1662int security_file_set_fowner(struct file *file);
1663int security_file_send_sigiotask(struct task_struct *tsk,
Eric Paris7b41b172008-04-23 14:10:25 -04001664 struct fown_struct *fown, int sig);
James Morris20510f22007-10-16 23:31:32 -07001665int security_file_receive(struct file *file);
1666int security_dentry_open(struct file *file);
1667int security_task_create(unsigned long clone_flags);
1668int security_task_alloc(struct task_struct *p);
1669void security_task_free(struct task_struct *p);
1670int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
1671int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
Eric Paris7b41b172008-04-23 14:10:25 -04001672 uid_t old_suid, int flags);
James Morris20510f22007-10-16 23:31:32 -07001673int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags);
1674int security_task_setpgid(struct task_struct *p, pid_t pgid);
1675int security_task_getpgid(struct task_struct *p);
1676int security_task_getsid(struct task_struct *p);
1677void security_task_getsecid(struct task_struct *p, u32 *secid);
1678int security_task_setgroups(struct group_info *group_info);
1679int security_task_setnice(struct task_struct *p, int nice);
1680int security_task_setioprio(struct task_struct *p, int ioprio);
1681int security_task_getioprio(struct task_struct *p);
1682int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim);
1683int security_task_setscheduler(struct task_struct *p,
1684 int policy, struct sched_param *lp);
1685int security_task_getscheduler(struct task_struct *p);
1686int security_task_movememory(struct task_struct *p);
1687int security_task_kill(struct task_struct *p, struct siginfo *info,
1688 int sig, u32 secid);
1689int security_task_wait(struct task_struct *p);
1690int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -07001691 unsigned long arg4, unsigned long arg5, long *rc_p);
James Morris20510f22007-10-16 23:31:32 -07001692void security_task_reparent_to_init(struct task_struct *p);
1693void security_task_to_inode(struct task_struct *p, struct inode *inode);
1694int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001695void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001696int security_msg_msg_alloc(struct msg_msg *msg);
1697void security_msg_msg_free(struct msg_msg *msg);
1698int security_msg_queue_alloc(struct msg_queue *msq);
1699void security_msg_queue_free(struct msg_queue *msq);
1700int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1701int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1702int security_msg_queue_msgsnd(struct msg_queue *msq,
Eric Paris7b41b172008-04-23 14:10:25 -04001703 struct msg_msg *msg, int msqflg);
James Morris20510f22007-10-16 23:31:32 -07001704int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
Eric Paris7b41b172008-04-23 14:10:25 -04001705 struct task_struct *target, long type, int mode);
James Morris20510f22007-10-16 23:31:32 -07001706int security_shm_alloc(struct shmid_kernel *shp);
1707void security_shm_free(struct shmid_kernel *shp);
1708int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1709int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1710int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1711int security_sem_alloc(struct sem_array *sma);
1712void security_sem_free(struct sem_array *sma);
1713int security_sem_associate(struct sem_array *sma, int semflg);
1714int security_sem_semctl(struct sem_array *sma, int cmd);
1715int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1716 unsigned nsops, int alter);
Eric Paris7b41b172008-04-23 14:10:25 -04001717void security_d_instantiate(struct dentry *dentry, struct inode *inode);
James Morris20510f22007-10-16 23:31:32 -07001718int security_getprocattr(struct task_struct *p, char *name, char **value);
1719int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1720int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1721int security_netlink_recv(struct sk_buff *skb, int cap);
1722int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001723int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001724void security_release_secctx(char *secdata, u32 seclen);
1725
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726#else /* CONFIG_SECURITY */
Eric Parise0007522008-03-05 10:31:54 -05001727struct security_mnt_opts {
1728};
1729
1730static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1731{
1732}
1733
1734static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1735{
1736}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737
1738/*
1739 * This is the default capabilities functionality. Most of these functions
1740 * are just stubbed out, but a few must call the proper capable code.
1741 */
1742
1743static inline int security_init(void)
1744{
1745 return 0;
1746}
1747
David Howells5cd9c582008-08-14 11:37:28 +01001748static inline int security_ptrace_may_access(struct task_struct *child,
1749 unsigned int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750{
David Howells5cd9c582008-08-14 11:37:28 +01001751 return cap_ptrace_may_access(child, mode);
1752}
1753
Alexander Beregalov5e186b52008-08-17 05:34:20 +04001754static inline int security_ptrace_traceme(struct task_struct *parent)
David Howells5cd9c582008-08-14 11:37:28 +01001755{
1756 return cap_ptrace_traceme(parent);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757}
1758
Eric Paris7b41b172008-04-23 14:10:25 -04001759static inline int security_capget(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_capget(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765}
1766
Eric Paris7b41b172008-04-23 14:10:25 -04001767static inline int security_capset_check(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 return cap_capset_check(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773}
1774
Eric Paris7b41b172008-04-23 14:10:25 -04001775static inline void security_capset_set(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001776 kernel_cap_t *effective,
1777 kernel_cap_t *inheritable,
1778 kernel_cap_t *permitted)
1779{
Eric Paris7b41b172008-04-23 14:10:25 -04001780 cap_capset_set(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781}
1782
Chris Wright12b59892006-03-25 03:07:41 -08001783static inline int security_capable(struct task_struct *tsk, int cap)
1784{
1785 return cap_capable(tsk, cap);
1786}
1787
Eric Paris7b41b172008-04-23 14:10:25 -04001788static inline int security_acct(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789{
1790 return 0;
1791}
1792
1793static inline int security_sysctl(struct ctl_table *table, int op)
1794{
1795 return 0;
1796}
1797
Eric Paris7b41b172008-04-23 14:10:25 -04001798static inline int security_quotactl(int cmds, int type, int id,
1799 struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001800{
1801 return 0;
1802}
1803
Eric Paris7b41b172008-04-23 14:10:25 -04001804static inline int security_quota_on(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805{
1806 return 0;
1807}
1808
1809static inline int security_syslog(int type)
1810{
1811 return cap_syslog(type);
1812}
1813
1814static inline int security_settime(struct timespec *ts, struct timezone *tz)
1815{
1816 return cap_settime(ts, tz);
1817}
1818
1819static inline int security_vm_enough_memory(long pages)
1820{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001821 WARN_ON(current->mm == NULL);
Alan Cox731572d2008-10-29 14:01:20 -07001822 return cap_vm_enough_memory(current->mm, pages);
1823}
1824
Alan Cox34b4e4a2007-08-22 14:01:28 -07001825static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1826{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001827 WARN_ON(mm == NULL);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001828 return cap_vm_enough_memory(mm, pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829}
1830
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001831static inline int security_vm_enough_memory_kern(long pages)
1832{
1833 /* If current->mm is a kernel thread then we will pass NULL,
1834 for this specific case that is fine */
1835 return cap_vm_enough_memory(current->mm, pages);
1836}
1837
Eric Paris7b41b172008-04-23 14:10:25 -04001838static inline int security_bprm_alloc(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001839{
1840 return 0;
1841}
1842
Eric Paris7b41b172008-04-23 14:10:25 -04001843static inline void security_bprm_free(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844{ }
1845
Eric Paris7b41b172008-04-23 14:10:25 -04001846static inline void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
1847{
1848 cap_bprm_apply_creds(bprm, unsafe);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849}
1850
Eric Paris7b41b172008-04-23 14:10:25 -04001851static inline void security_bprm_post_apply_creds(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852{
1853 return;
1854}
1855
Eric Paris7b41b172008-04-23 14:10:25 -04001856static inline int security_bprm_set(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857{
Eric Paris7b41b172008-04-23 14:10:25 -04001858 return cap_bprm_set_security(bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859}
1860
Eric Paris7b41b172008-04-23 14:10:25 -04001861static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862{
1863 return 0;
1864}
1865
Eric Paris7b41b172008-04-23 14:10:25 -04001866static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001867{
1868 return cap_bprm_secureexec(bprm);
1869}
1870
Eric Paris7b41b172008-04-23 14:10:25 -04001871static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001872{
1873 return 0;
1874}
1875
Eric Paris7b41b172008-04-23 14:10:25 -04001876static inline void security_sb_free(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001877{ }
1878
Eric Paris7b41b172008-04-23 14:10:25 -04001879static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001880{
1881 return 0;
1882}
1883
Eric Paris7b41b172008-04-23 14:10:25 -04001884static inline int security_sb_kern_mount(struct super_block *sb, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885{
1886 return 0;
1887}
1888
Eric Paris2069f452008-07-04 09:47:13 +10001889static inline int security_sb_show_options(struct seq_file *m,
1890 struct super_block *sb)
1891{
1892 return 0;
1893}
1894
Eric Paris7b41b172008-04-23 14:10:25 -04001895static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896{
1897 return 0;
1898}
1899
Eric Paris7b41b172008-04-23 14:10:25 -04001900static inline int security_sb_mount(char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001901 char *type, unsigned long flags,
1902 void *data)
1903{
1904 return 0;
1905}
1906
Eric Paris7b41b172008-04-23 14:10:25 -04001907static inline int security_sb_check_sb(struct vfsmount *mnt,
1908 struct path *path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909{
1910 return 0;
1911}
1912
Eric Paris7b41b172008-04-23 14:10:25 -04001913static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914{
1915 return 0;
1916}
1917
Eric Paris7b41b172008-04-23 14:10:25 -04001918static inline void security_sb_umount_close(struct vfsmount *mnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001919{ }
1920
Eric Paris7b41b172008-04-23 14:10:25 -04001921static inline void security_sb_umount_busy(struct vfsmount *mnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001922{ }
1923
Eric Paris7b41b172008-04-23 14:10:25 -04001924static inline void security_sb_post_remount(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001925 unsigned long flags, void *data)
1926{ }
1927
Eric Paris7b41b172008-04-23 14:10:25 -04001928static inline void security_sb_post_addmount(struct vfsmount *mnt,
1929 struct path *mountpoint)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001930{ }
1931
Eric Paris7b41b172008-04-23 14:10:25 -04001932static inline int security_sb_pivotroot(struct path *old_path,
1933 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001934{
1935 return 0;
1936}
1937
Eric Paris7b41b172008-04-23 14:10:25 -04001938static inline void security_sb_post_pivotroot(struct path *old_path,
1939 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001940{ }
Eric Parise0007522008-03-05 10:31:54 -05001941
1942static inline int security_sb_set_mnt_opts(struct super_block *sb,
1943 struct security_mnt_opts *opts)
1944{
1945 return 0;
1946}
1947
1948static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1949 struct super_block *newsb)
1950{ }
1951
1952static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
1953{
1954 return 0;
1955}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001956
Eric Paris7b41b172008-04-23 14:10:25 -04001957static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001958{
1959 return 0;
1960}
1961
Eric Paris7b41b172008-04-23 14:10:25 -04001962static inline void security_inode_free(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001964
Eric Paris7b41b172008-04-23 14:10:25 -04001965static inline int security_inode_init_security(struct inode *inode,
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001966 struct inode *dir,
1967 char **name,
1968 void **value,
1969 size_t *len)
1970{
1971 return -EOPNOTSUPP;
1972}
Eric Paris7b41b172008-04-23 14:10:25 -04001973
1974static inline int security_inode_create(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001975 struct dentry *dentry,
1976 int mode)
1977{
1978 return 0;
1979}
1980
Eric Paris7b41b172008-04-23 14:10:25 -04001981static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001982 struct inode *dir,
1983 struct dentry *new_dentry)
1984{
1985 return 0;
1986}
1987
Eric Paris7b41b172008-04-23 14:10:25 -04001988static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001989 struct dentry *dentry)
1990{
1991 return 0;
1992}
1993
Eric Paris7b41b172008-04-23 14:10:25 -04001994static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001995 struct dentry *dentry,
1996 const char *old_name)
1997{
1998 return 0;
1999}
2000
Eric Paris7b41b172008-04-23 14:10:25 -04002001static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002 struct dentry *dentry,
2003 int mode)
2004{
2005 return 0;
2006}
2007
Eric Paris7b41b172008-04-23 14:10:25 -04002008static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009 struct dentry *dentry)
2010{
2011 return 0;
2012}
2013
Eric Paris7b41b172008-04-23 14:10:25 -04002014static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002015 struct dentry *dentry,
2016 int mode, dev_t dev)
2017{
2018 return 0;
2019}
2020
Eric Paris7b41b172008-04-23 14:10:25 -04002021static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002022 struct dentry *old_dentry,
2023 struct inode *new_dir,
2024 struct dentry *new_dentry)
2025{
2026 return 0;
2027}
2028
Eric Paris7b41b172008-04-23 14:10:25 -04002029static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030{
2031 return 0;
2032}
2033
Eric Paris7b41b172008-04-23 14:10:25 -04002034static inline int security_inode_follow_link(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035 struct nameidata *nd)
2036{
2037 return 0;
2038}
2039
Al Virob77b0642008-07-17 09:37:02 -04002040static inline int security_inode_permission(struct inode *inode, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041{
2042 return 0;
2043}
2044
Eric Paris7b41b172008-04-23 14:10:25 -04002045static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002046 struct iattr *attr)
2047{
2048 return 0;
2049}
2050
Eric Paris7b41b172008-04-23 14:10:25 -04002051static inline int security_inode_getattr(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002052 struct dentry *dentry)
2053{
2054 return 0;
2055}
2056
Eric Paris7b41b172008-04-23 14:10:25 -04002057static inline void security_inode_delete(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002058{ }
2059
David Howells8f0cfa52008-04-29 00:59:41 -07002060static inline int security_inode_setxattr(struct dentry *dentry,
2061 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062{
2063 return cap_inode_setxattr(dentry, name, value, size, flags);
2064}
2065
David Howells8f0cfa52008-04-29 00:59:41 -07002066static inline void security_inode_post_setxattr(struct dentry *dentry,
2067 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002068{ }
2069
David Howells8f0cfa52008-04-29 00:59:41 -07002070static inline int security_inode_getxattr(struct dentry *dentry,
2071 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072{
2073 return 0;
2074}
2075
Eric Paris7b41b172008-04-23 14:10:25 -04002076static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077{
2078 return 0;
2079}
2080
David Howells8f0cfa52008-04-29 00:59:41 -07002081static inline int security_inode_removexattr(struct dentry *dentry,
2082 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002083{
2084 return cap_inode_removexattr(dentry, name);
2085}
2086
Serge E. Hallynb5376772007-10-16 23:31:36 -07002087static inline int security_inode_need_killpriv(struct dentry *dentry)
2088{
2089 return cap_inode_need_killpriv(dentry);
2090}
2091
2092static inline int security_inode_killpriv(struct dentry *dentry)
2093{
2094 return cap_inode_killpriv(dentry);
2095}
2096
David P. Quigley42492592008-02-04 22:29:39 -08002097static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098{
2099 return -EOPNOTSUPP;
2100}
2101
2102static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2103{
2104 return -EOPNOTSUPP;
2105}
2106
2107static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2108{
2109 return 0;
2110}
2111
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002112static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2113{
2114 *secid = 0;
2115}
2116
Eric Paris7b41b172008-04-23 14:10:25 -04002117static inline int security_file_permission(struct file *file, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118{
2119 return 0;
2120}
2121
Eric Paris7b41b172008-04-23 14:10:25 -04002122static inline int security_file_alloc(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123{
2124 return 0;
2125}
2126
Eric Paris7b41b172008-04-23 14:10:25 -04002127static inline void security_file_free(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128{ }
2129
Eric Paris7b41b172008-04-23 14:10:25 -04002130static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2131 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132{
2133 return 0;
2134}
2135
Eric Paris7b41b172008-04-23 14:10:25 -04002136static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2137 unsigned long prot,
2138 unsigned long flags,
2139 unsigned long addr,
2140 unsigned long addr_only)
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_mprotect(struct vm_area_struct *vma,
2146 unsigned long reqprot,
2147 unsigned long prot)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002148{
2149 return 0;
2150}
2151
Eric Paris7b41b172008-04-23 14:10:25 -04002152static inline int security_file_lock(struct file *file, unsigned int cmd)
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_fcntl(struct file *file, unsigned int cmd,
2158 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159{
2160 return 0;
2161}
2162
Eric Paris7b41b172008-04-23 14:10:25 -04002163static inline int security_file_set_fowner(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002164{
2165 return 0;
2166}
2167
Eric Paris7b41b172008-04-23 14:10:25 -04002168static inline int security_file_send_sigiotask(struct task_struct *tsk,
2169 struct fown_struct *fown,
2170 int sig)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171{
2172 return 0;
2173}
2174
Eric Paris7b41b172008-04-23 14:10:25 -04002175static inline int security_file_receive(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002176{
2177 return 0;
2178}
2179
Eric Paris7b41b172008-04-23 14:10:25 -04002180static inline int security_dentry_open(struct file *file)
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +09002181{
2182 return 0;
2183}
2184
Eric Paris7b41b172008-04-23 14:10:25 -04002185static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002186{
2187 return 0;
2188}
2189
Eric Paris7b41b172008-04-23 14:10:25 -04002190static inline int security_task_alloc(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002191{
2192 return 0;
2193}
2194
Eric Paris7b41b172008-04-23 14:10:25 -04002195static inline void security_task_free(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002196{ }
2197
Eric Paris7b41b172008-04-23 14:10:25 -04002198static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
2199 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200{
2201 return 0;
2202}
2203
Eric Paris7b41b172008-04-23 14:10:25 -04002204static inline int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
2205 uid_t old_suid, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206{
Eric Paris7b41b172008-04-23 14:10:25 -04002207 return cap_task_post_setuid(old_ruid, old_euid, old_suid, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208}
2209
Eric Paris7b41b172008-04-23 14:10:25 -04002210static inline int security_task_setgid(gid_t id0, gid_t id1, gid_t id2,
2211 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212{
2213 return 0;
2214}
2215
Eric Paris7b41b172008-04-23 14:10:25 -04002216static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002217{
2218 return 0;
2219}
2220
Eric Paris7b41b172008-04-23 14:10:25 -04002221static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222{
2223 return 0;
2224}
2225
Eric Paris7b41b172008-04-23 14:10:25 -04002226static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002227{
2228 return 0;
2229}
2230
Eric Paris7b41b172008-04-23 14:10:25 -04002231static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002232{
2233 *secid = 0;
2234}
David Quigleyf9008e42006-06-30 01:55:46 -07002235
Eric Paris7b41b172008-04-23 14:10:25 -04002236static inline int security_task_setgroups(struct group_info *group_info)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237{
2238 return 0;
2239}
2240
Eric Paris7b41b172008-04-23 14:10:25 -04002241static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002242{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002243 return cap_task_setnice(p, nice);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244}
2245
Eric Paris7b41b172008-04-23 14:10:25 -04002246static inline int security_task_setioprio(struct task_struct *p, int ioprio)
James Morris03e68062006-06-23 02:03:58 -07002247{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002248 return cap_task_setioprio(p, ioprio);
James Morris03e68062006-06-23 02:03:58 -07002249}
2250
Eric Paris7b41b172008-04-23 14:10:25 -04002251static inline int security_task_getioprio(struct task_struct *p)
David Quigleya1836a42006-06-30 01:55:49 -07002252{
2253 return 0;
2254}
2255
Eric Paris7b41b172008-04-23 14:10:25 -04002256static inline int security_task_setrlimit(unsigned int resource,
2257 struct rlimit *new_rlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002258{
2259 return 0;
2260}
2261
Eric Paris7b41b172008-04-23 14:10:25 -04002262static inline int security_task_setscheduler(struct task_struct *p,
2263 int policy,
2264 struct sched_param *lp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002266 return cap_task_setscheduler(p, policy, lp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002267}
2268
Eric Paris7b41b172008-04-23 14:10:25 -04002269static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002270{
2271 return 0;
2272}
2273
Eric Paris7b41b172008-04-23 14:10:25 -04002274static inline int security_task_movememory(struct task_struct *p)
David Quigley35601542006-06-23 02:04:01 -07002275{
2276 return 0;
2277}
2278
Eric Paris7b41b172008-04-23 14:10:25 -04002279static inline int security_task_kill(struct task_struct *p,
2280 struct siginfo *info, int sig,
2281 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282{
Serge Hallynaedb60a2008-02-29 15:14:57 +00002283 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002284}
2285
Eric Paris7b41b172008-04-23 14:10:25 -04002286static inline int security_task_wait(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287{
2288 return 0;
2289}
2290
Eric Paris7b41b172008-04-23 14:10:25 -04002291static inline int security_task_prctl(int option, unsigned long arg2,
2292 unsigned long arg3,
2293 unsigned long arg4,
Linus Torvaldscfd299d2008-04-28 10:08:49 -07002294 unsigned long arg5, long *rc_p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295{
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -07002296 return cap_task_prctl(option, arg2, arg3, arg3, arg5, rc_p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002297}
2298
Eric Paris7b41b172008-04-23 14:10:25 -04002299static inline void security_task_reparent_to_init(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002300{
Eric Paris7b41b172008-04-23 14:10:25 -04002301 cap_task_reparent_to_init(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002302}
2303
2304static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2305{ }
2306
Eric Paris7b41b172008-04-23 14:10:25 -04002307static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2308 short flag)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002309{
2310 return 0;
2311}
2312
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002313static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2314{
2315 *secid = 0;
2316}
2317
Eric Paris7b41b172008-04-23 14:10:25 -04002318static inline int security_msg_msg_alloc(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002319{
2320 return 0;
2321}
2322
Eric Paris7b41b172008-04-23 14:10:25 -04002323static inline void security_msg_msg_free(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002324{ }
2325
Eric Paris7b41b172008-04-23 14:10:25 -04002326static inline int security_msg_queue_alloc(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327{
2328 return 0;
2329}
2330
Eric Paris7b41b172008-04-23 14:10:25 -04002331static inline void security_msg_queue_free(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002332{ }
2333
Eric Paris7b41b172008-04-23 14:10:25 -04002334static inline int security_msg_queue_associate(struct msg_queue *msq,
2335 int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002336{
2337 return 0;
2338}
2339
Eric Paris7b41b172008-04-23 14:10:25 -04002340static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002341{
2342 return 0;
2343}
2344
Eric Paris7b41b172008-04-23 14:10:25 -04002345static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2346 struct msg_msg *msg, int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002347{
2348 return 0;
2349}
2350
Eric Paris7b41b172008-04-23 14:10:25 -04002351static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2352 struct msg_msg *msg,
2353 struct task_struct *target,
2354 long type, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002355{
2356 return 0;
2357}
2358
Eric Paris7b41b172008-04-23 14:10:25 -04002359static inline int security_shm_alloc(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002360{
2361 return 0;
2362}
2363
Eric Paris7b41b172008-04-23 14:10:25 -04002364static inline void security_shm_free(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002365{ }
2366
Eric Paris7b41b172008-04-23 14:10:25 -04002367static inline int security_shm_associate(struct shmid_kernel *shp,
2368 int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002369{
2370 return 0;
2371}
2372
Eric Paris7b41b172008-04-23 14:10:25 -04002373static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002374{
2375 return 0;
2376}
2377
Eric Paris7b41b172008-04-23 14:10:25 -04002378static inline int security_shm_shmat(struct shmid_kernel *shp,
2379 char __user *shmaddr, int shmflg)
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_alloc(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002385{
2386 return 0;
2387}
2388
Eric Paris7b41b172008-04-23 14:10:25 -04002389static inline void security_sem_free(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002390{ }
2391
Eric Paris7b41b172008-04-23 14:10:25 -04002392static inline int security_sem_associate(struct sem_array *sma, int semflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002393{
2394 return 0;
2395}
2396
Eric Paris7b41b172008-04-23 14:10:25 -04002397static inline int security_sem_semctl(struct sem_array *sma, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002398{
2399 return 0;
2400}
2401
Eric Paris7b41b172008-04-23 14:10:25 -04002402static inline int security_sem_semop(struct sem_array *sma,
2403 struct sembuf *sops, unsigned nsops,
2404 int alter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002405{
2406 return 0;
2407}
2408
Eric Paris7b41b172008-04-23 14:10:25 -04002409static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002410{ }
2411
Al Viro04ff9702007-03-12 16:17:58 +00002412static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002413{
2414 return -EINVAL;
2415}
2416
2417static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2418{
2419 return -EINVAL;
2420}
2421
Eric Paris7b41b172008-04-23 14:10:25 -04002422static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002423{
Eric Paris7b41b172008-04-23 14:10:25 -04002424 return cap_netlink_send(sk, skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002425}
2426
Eric Paris7b41b172008-04-23 14:10:25 -04002427static inline int security_netlink_recv(struct sk_buff *skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002428{
Eric Paris7b41b172008-04-23 14:10:25 -04002429 return cap_netlink_recv(skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002430}
2431
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002432static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2433{
2434 return -EOPNOTSUPP;
2435}
2436
David Howells7bf570d2008-04-29 20:52:51 +01002437static inline int security_secctx_to_secid(const char *secdata,
David Howells63cb3442008-01-15 23:47:35 +00002438 u32 seclen,
2439 u32 *secid)
2440{
2441 return -EOPNOTSUPP;
2442}
2443
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002444static inline void security_release_secctx(char *secdata, u32 seclen)
2445{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002446}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002447#endif /* CONFIG_SECURITY */
2448
2449#ifdef CONFIG_SECURITY_NETWORK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002450
James Morris20510f22007-10-16 23:31:32 -07002451int security_unix_stream_connect(struct socket *sock, struct socket *other,
2452 struct sock *newsk);
2453int security_unix_may_send(struct socket *sock, struct socket *other);
2454int security_socket_create(int family, int type, int protocol, int kern);
2455int security_socket_post_create(struct socket *sock, int family,
2456 int type, int protocol, int kern);
2457int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2458int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2459int security_socket_listen(struct socket *sock, int backlog);
2460int security_socket_accept(struct socket *sock, struct socket *newsock);
2461void security_socket_post_accept(struct socket *sock, struct socket *newsock);
2462int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2463int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2464 int size, int flags);
2465int security_socket_getsockname(struct socket *sock);
2466int security_socket_getpeername(struct socket *sock);
2467int security_socket_getsockopt(struct socket *sock, int level, int optname);
2468int security_socket_setsockopt(struct socket *sock, int level, int optname);
2469int security_socket_shutdown(struct socket *sock, int how);
2470int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2471int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2472 int __user *optlen, unsigned len);
2473int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2474int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2475void security_sk_free(struct sock *sk);
2476void security_sk_clone(const struct sock *sk, struct sock *newsk);
2477void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2478void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2479void security_sock_graft(struct sock*sk, struct socket *parent);
2480int security_inet_conn_request(struct sock *sk,
2481 struct sk_buff *skb, struct request_sock *req);
2482void security_inet_csk_clone(struct sock *newsk,
2483 const struct request_sock *req);
2484void security_inet_conn_established(struct sock *sk,
2485 struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002486
Linus Torvalds1da177e2005-04-16 15:20:36 -07002487#else /* CONFIG_SECURITY_NETWORK */
Eric Paris7b41b172008-04-23 14:10:25 -04002488static inline int security_unix_stream_connect(struct socket *sock,
2489 struct socket *other,
2490 struct sock *newsk)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002491{
2492 return 0;
2493}
2494
Eric Paris7b41b172008-04-23 14:10:25 -04002495static inline int security_unix_may_send(struct socket *sock,
2496 struct socket *other)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002497{
2498 return 0;
2499}
2500
Eric Paris7b41b172008-04-23 14:10:25 -04002501static inline int security_socket_create(int family, int type,
2502 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002503{
2504 return 0;
2505}
2506
Eric Paris7b41b172008-04-23 14:10:25 -04002507static inline int security_socket_post_create(struct socket *sock,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002508 int family,
2509 int type,
2510 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002511{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002512 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002513}
2514
Eric Paris7b41b172008-04-23 14:10:25 -04002515static inline int security_socket_bind(struct socket *sock,
2516 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002517 int addrlen)
2518{
2519 return 0;
2520}
2521
Eric Paris7b41b172008-04-23 14:10:25 -04002522static inline int security_socket_connect(struct socket *sock,
2523 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002524 int addrlen)
2525{
2526 return 0;
2527}
2528
Eric Paris7b41b172008-04-23 14:10:25 -04002529static inline int security_socket_listen(struct socket *sock, int backlog)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002530{
2531 return 0;
2532}
2533
Eric Paris7b41b172008-04-23 14:10:25 -04002534static inline int security_socket_accept(struct socket *sock,
2535 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002536{
2537 return 0;
2538}
2539
Eric Paris7b41b172008-04-23 14:10:25 -04002540static inline void security_socket_post_accept(struct socket *sock,
2541 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002542{
2543}
2544
Eric Paris7b41b172008-04-23 14:10:25 -04002545static inline int security_socket_sendmsg(struct socket *sock,
2546 struct msghdr *msg, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002547{
2548 return 0;
2549}
2550
Eric Paris7b41b172008-04-23 14:10:25 -04002551static inline int security_socket_recvmsg(struct socket *sock,
2552 struct msghdr *msg, int size,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002553 int flags)
2554{
2555 return 0;
2556}
2557
Eric Paris7b41b172008-04-23 14:10:25 -04002558static inline int security_socket_getsockname(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002559{
2560 return 0;
2561}
2562
Eric Paris7b41b172008-04-23 14:10:25 -04002563static inline int security_socket_getpeername(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002564{
2565 return 0;
2566}
2567
Eric Paris7b41b172008-04-23 14:10:25 -04002568static inline int security_socket_getsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002569 int level, int optname)
2570{
2571 return 0;
2572}
2573
Eric Paris7b41b172008-04-23 14:10:25 -04002574static inline int security_socket_setsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002575 int level, int optname)
2576{
2577 return 0;
2578}
2579
Eric Paris7b41b172008-04-23 14:10:25 -04002580static inline int security_socket_shutdown(struct socket *sock, int how)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002581{
2582 return 0;
2583}
Eric Paris7b41b172008-04-23 14:10:25 -04002584static inline int security_sock_rcv_skb(struct sock *sk,
2585 struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002586{
2587 return 0;
2588}
2589
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002590static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2591 int __user *optlen, unsigned len)
2592{
2593 return -ENOPROTOOPT;
2594}
2595
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002596static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002597{
2598 return -ENOPROTOOPT;
2599}
2600
Al Virodd0fc662005-10-07 07:46:04 +01002601static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002602{
2603 return 0;
2604}
2605
2606static inline void security_sk_free(struct sock *sk)
2607{
2608}
Trent Jaegerdf718372005-12-13 23:12:27 -08002609
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002610static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2611{
2612}
2613
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002614static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002615{
Trent Jaegerdf718372005-12-13 23:12:27 -08002616}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002617
2618static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2619{
2620}
2621
Eric Paris7b41b172008-04-23 14:10:25 -04002622static inline void security_sock_graft(struct sock *sk, struct socket *parent)
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002623{
2624}
2625
2626static inline int security_inet_conn_request(struct sock *sk,
2627 struct sk_buff *skb, struct request_sock *req)
2628{
2629 return 0;
2630}
2631
2632static inline void security_inet_csk_clone(struct sock *newsk,
2633 const struct request_sock *req)
2634{
2635}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002636
2637static inline void security_inet_conn_established(struct sock *sk,
2638 struct sk_buff *skb)
2639{
2640}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002641#endif /* CONFIG_SECURITY_NETWORK */
2642
Trent Jaegerdf718372005-12-13 23:12:27 -08002643#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07002644
Paul Moore03e1ad72008-04-12 19:07:52 -07002645int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2646int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2647void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2648int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
James Morris20510f22007-10-16 23:31:32 -07002649int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2650int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2651 struct xfrm_sec_ctx *polsec, u32 secid);
2652int security_xfrm_state_delete(struct xfrm_state *x);
2653void security_xfrm_state_free(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -07002654int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
James Morris20510f22007-10-16 23:31:32 -07002655int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2656 struct xfrm_policy *xp, struct flowi *fl);
2657int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2658void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
Trent Jaegerdf718372005-12-13 23:12:27 -08002659
Trent Jaegerdf718372005-12-13 23:12:27 -08002660#else /* CONFIG_SECURITY_NETWORK_XFRM */
James Morris20510f22007-10-16 23:31:32 -07002661
Paul Moore03e1ad72008-04-12 19:07:52 -07002662static 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 -08002663{
2664 return 0;
2665}
2666
Paul Moore03e1ad72008-04-12 19:07:52 -07002667static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
Trent Jaegerdf718372005-12-13 23:12:27 -08002668{
2669 return 0;
2670}
2671
Paul Moore03e1ad72008-04-12 19:07:52 -07002672static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08002673{
2674}
2675
Paul Moore03e1ad72008-04-12 19:07:52 -07002676static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002677{
2678 return 0;
2679}
2680
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002681static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2682 struct xfrm_user_sec_ctx *sec_ctx)
2683{
2684 return 0;
2685}
2686
2687static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2688 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08002689{
2690 return 0;
2691}
2692
2693static inline void security_xfrm_state_free(struct xfrm_state *x)
2694{
2695}
2696
David S. Miller6f68dc32006-06-08 23:58:52 -07002697static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002698{
2699 return 0;
2700}
2701
Paul Moore03e1ad72008-04-12 19:07:52 -07002702static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08002703{
2704 return 0;
2705}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002706
2707static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2708 struct xfrm_policy *xp, struct flowi *fl)
2709{
2710 return 1;
2711}
2712
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002713static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002714{
2715 return 0;
2716}
2717
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002718static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2719{
2720}
2721
Trent Jaegerdf718372005-12-13 23:12:27 -08002722#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2723
David Howells29db9192005-10-30 15:02:44 -08002724#ifdef CONFIG_KEYS
2725#ifdef CONFIG_SECURITY
David Howells29db9192005-10-30 15:02:44 -08002726
James Morris20510f22007-10-16 23:31:32 -07002727int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags);
2728void security_key_free(struct key *key);
2729int security_key_permission(key_ref_t key_ref,
2730 struct task_struct *context, key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07002731int security_key_getsecurity(struct key *key, char **_buffer);
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
David Howells70a5bb72008-04-29 01:01:26 -07002753static inline int security_key_getsecurity(struct key *key, char **_buffer)
2754{
2755 *_buffer = NULL;
2756 return 0;
2757}
2758
David Howells29db9192005-10-30 15:02:44 -08002759#endif
2760#endif /* CONFIG_KEYS */
2761
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02002762#ifdef CONFIG_AUDIT
2763#ifdef CONFIG_SECURITY
2764int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2765int security_audit_rule_known(struct audit_krule *krule);
2766int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2767 struct audit_context *actx);
2768void security_audit_rule_free(void *lsmrule);
2769
2770#else
2771
2772static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2773 void **lsmrule)
2774{
2775 return 0;
2776}
2777
2778static inline int security_audit_rule_known(struct audit_krule *krule)
2779{
2780 return 0;
2781}
2782
2783static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2784 void *lsmrule, struct audit_context *actx)
2785{
2786 return 0;
2787}
2788
2789static inline void security_audit_rule_free(void *lsmrule)
2790{ }
2791
2792#endif /* CONFIG_SECURITY */
2793#endif /* CONFIG_AUDIT */
2794
Eric Parisda318942008-08-22 11:35:57 -04002795#ifdef CONFIG_SECURITYFS
2796
2797extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2798 struct dentry *parent, void *data,
2799 const struct file_operations *fops);
2800extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2801extern void securityfs_remove(struct dentry *dentry);
2802
2803#else /* CONFIG_SECURITYFS */
2804
2805static inline struct dentry *securityfs_create_dir(const char *name,
2806 struct dentry *parent)
2807{
2808 return ERR_PTR(-ENODEV);
2809}
2810
2811static inline struct dentry *securityfs_create_file(const char *name,
2812 mode_t mode,
2813 struct dentry *parent,
2814 void *data,
2815 const struct file_operations *fops)
2816{
2817 return ERR_PTR(-ENODEV);
2818}
2819
2820static inline void securityfs_remove(struct dentry *dentry)
2821{}
2822
2823#endif
2824
Linus Torvalds1da177e2005-04-16 15:20:36 -07002825#endif /* ! __LINUX_SECURITY_H */
2826