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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>
Eric Parisc4ec54b2009-12-17 21:24:34 -050026#include <linux/fsnotify.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include <linux/binfmts.h>
28#include <linux/signal.h>
29#include <linux/resource.h>
30#include <linux/sem.h>
31#include <linux/shm.h>
Eric Parisa2551df2009-07-31 12:54:11 -040032#include <linux/mm.h> /* PAGE_ALIGN */
Linus Torvalds1da177e2005-04-16 15:20:36 -070033#include <linux/msg.h>
34#include <linux/sched.h>
David Howells29db9192005-10-30 15:02:44 -080035#include <linux/key.h>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -070036#include <linux/xfrm.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090037#include <linux/slab.h>
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -070038#include <net/flow.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070039
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020040/* Maximum number of letters for an LSM name string */
41#define SECURITY_NAME_MAX 10
42
Eric Paris06112162008-11-11 22:02:50 +110043/* If capable should audit the security request */
44#define SECURITY_CAP_NOAUDIT 0
45#define SECURITY_CAP_AUDIT 1
46
Linus Torvalds1da177e2005-04-16 15:20:36 -070047struct ctl_table;
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +020048struct audit_krule;
Linus Torvalds1da177e2005-04-16 15:20:36 -070049
50/*
51 * These functions are in security/capability.c and are used
52 * as the default capabilities functions
53 */
David Howells3699c532009-01-06 22:27:01 +000054extern int cap_capable(struct task_struct *tsk, const struct cred *cred,
55 int cap, int audit);
Eric Paris7b41b172008-04-23 14:10:25 -040056extern int cap_settime(struct timespec *ts, struct timezone *tz);
Ingo Molnar9e488582009-05-07 19:26:19 +100057extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +010058extern int cap_ptrace_traceme(struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -040059extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +110060extern int cap_capset(struct cred *new, const struct cred *old,
61 const kernel_cap_t *effective,
62 const kernel_cap_t *inheritable,
63 const kernel_cap_t *permitted);
David Howellsa6f76f22008-11-14 10:39:24 +110064extern int cap_bprm_set_creds(struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -070065extern int cap_bprm_secureexec(struct linux_binprm *bprm);
David Howells8f0cfa52008-04-29 00:59:41 -070066extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
67 const void *value, size_t size, int flags);
68extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -070069extern int cap_inode_need_killpriv(struct dentry *dentry);
70extern int cap_inode_killpriv(struct dentry *dentry);
Eric Paris7c738752009-07-31 12:53:58 -040071extern int cap_file_mmap(struct file *file, unsigned long reqprot,
72 unsigned long prot, unsigned long flags,
73 unsigned long addr, unsigned long addr_only);
David Howellsd84f4f92008-11-14 10:39:23 +110074extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070075extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +110076 unsigned long arg4, unsigned long arg5);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +090077extern int cap_task_setscheduler(struct task_struct *p);
Eric Paris7b41b172008-04-23 14:10:25 -040078extern int cap_task_setioprio(struct task_struct *p, int ioprio);
79extern int cap_task_setnice(struct task_struct *p, int nice);
James Morris20510f22007-10-16 23:31:32 -070080extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
82struct msghdr;
83struct sk_buff;
84struct sock;
85struct sockaddr;
86struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -080087struct flowi;
88struct dst_entry;
89struct xfrm_selector;
90struct xfrm_policy;
91struct xfrm_state;
92struct xfrm_user_sec_ctx;
Eric Paris2069f452008-07-04 09:47:13 +100093struct seq_file;
Linus Torvalds1da177e2005-04-16 15:20:36 -070094
95extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
Darrel Goeddelc7bdb542006-06-27 13:26:11 -070096extern int cap_netlink_recv(struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -070097
wzt.wzt@gmail.com189b3b12010-02-23 23:15:28 +080098void reset_security_ops(void);
99
David Howells6e141542009-12-15 19:27:45 +0000100#ifdef CONFIG_MMU
Eric Parised032182007-06-28 15:55:21 -0400101extern unsigned long mmap_min_addr;
Eric Parisa2551df2009-07-31 12:54:11 -0400102extern unsigned long dac_mmap_min_addr;
David Howells6e141542009-12-15 19:27:45 +0000103#else
104#define dac_mmap_min_addr 0UL
105#endif
106
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107/*
108 * Values used in the task_security_ops calls
109 */
110/* setuid or setgid, id0 == uid or gid */
111#define LSM_SETID_ID 1
112
113/* setreuid or setregid, id0 == real, id1 == eff */
114#define LSM_SETID_RE 2
115
116/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
117#define LSM_SETID_RES 4
118
119/* setfsuid or setfsgid, id0 == fsuid or fsgid */
120#define LSM_SETID_FS 8
121
122/* forward declares to avoid warnings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123struct sched_param;
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700124struct request_sock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125
David Howellsa6f76f22008-11-14 10:39:24 +1100126/* bprm->unsafe reasons */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127#define LSM_UNSAFE_SHARE 1
128#define LSM_UNSAFE_PTRACE 2
129#define LSM_UNSAFE_PTRACE_CAP 4
130
David Howells6e141542009-12-15 19:27:45 +0000131#ifdef CONFIG_MMU
Eric Paris47d439e2009-08-07 14:53:57 -0400132/*
133 * If a hint addr is less than mmap_min_addr change hint to be as
134 * low as possible but still greater than mmap_min_addr
135 */
136static inline unsigned long round_hint_to_min(unsigned long hint)
137{
138 hint &= PAGE_MASK;
139 if (((void *)hint != NULL) &&
140 (hint < mmap_min_addr))
141 return PAGE_ALIGN(mmap_min_addr);
142 return hint;
143}
Alexey Dobriyan8d65af72009-09-23 15:57:19 -0700144extern int mmap_min_addr_handler(struct ctl_table *table, int write,
Eric Paris47d439e2009-08-07 14:53:57 -0400145 void __user *buffer, size_t *lenp, loff_t *ppos);
David Howells6e141542009-12-15 19:27:45 +0000146#endif
Eric Paris47d439e2009-08-07 14:53:57 -0400147
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148#ifdef CONFIG_SECURITY
149
Eric Parise0007522008-03-05 10:31:54 -0500150struct security_mnt_opts {
151 char **mnt_opts;
152 int *mnt_opts_flags;
153 int num_mnt_opts;
154};
155
156static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
157{
158 opts->mnt_opts = NULL;
159 opts->mnt_opts_flags = NULL;
160 opts->num_mnt_opts = 0;
161}
162
163static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
164{
165 int i;
166 if (opts->mnt_opts)
Eric Paris7b41b172008-04-23 14:10:25 -0400167 for (i = 0; i < opts->num_mnt_opts; i++)
Eric Parise0007522008-03-05 10:31:54 -0500168 kfree(opts->mnt_opts[i]);
169 kfree(opts->mnt_opts);
170 opts->mnt_opts = NULL;
171 kfree(opts->mnt_opts_flags);
172 opts->mnt_opts_flags = NULL;
173 opts->num_mnt_opts = 0;
174}
175
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176/**
177 * struct security_operations - main security structure
178 *
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200179 * Security module identifier.
180 *
181 * @name:
182 * A string that acts as a unique identifeir for the LSM with max number
183 * of characters = SECURITY_NAME_MAX.
184 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 * Security hooks for program execution operations.
186 *
David Howellsa6f76f22008-11-14 10:39:24 +1100187 * @bprm_set_creds:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 * Save security information in the bprm->security field, typically based
189 * on information about the bprm->file, for later use by the apply_creds
190 * hook. This hook may also optionally check permissions (e.g. for
191 * transitions between security domains).
192 * This hook may be called multiple times during a single execve, e.g. for
193 * interpreters. The hook can tell whether it has already been called by
194 * checking to see if @bprm->security is non-NULL. If so, then the hook
195 * may decide either to retain the security information saved earlier or
196 * to replace it.
197 * @bprm contains the linux_binprm structure.
198 * Return 0 if the hook is successful and permission is granted.
199 * @bprm_check_security:
David Howellsa6f76f22008-11-14 10:39:24 +1100200 * This hook mediates the point when a search for a binary handler will
201 * begin. It allows a check the @bprm->security value which is set in the
202 * preceding set_creds call. The primary difference from set_creds is
203 * that the argv list and envp list are reliably available in @bprm. This
204 * hook may be called multiple times during a single execve; and in each
205 * pass set_creds is called first.
Eric Paris7b41b172008-04-23 14:10:25 -0400206 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 * Return 0 if the hook is successful and permission is granted.
David Howellsa6f76f22008-11-14 10:39:24 +1100208 * @bprm_committing_creds:
209 * Prepare to install the new security attributes of a process being
210 * transformed by an execve operation, based on the old credentials
211 * pointed to by @current->cred and the information set in @bprm->cred by
212 * the bprm_set_creds hook. @bprm points to the linux_binprm structure.
213 * This hook is a good place to perform state changes on the process such
214 * as closing open file descriptors to which access will no longer be
215 * granted when the attributes are changed. This is called immediately
216 * before commit_creds().
217 * @bprm_committed_creds:
218 * Tidy up after the installation of the new security attributes of a
219 * process being transformed by an execve operation. The new credentials
220 * have, by this point, been set to @current->cred. @bprm points to the
221 * linux_binprm structure. This hook is a good place to perform state
222 * changes on the process such as clearing out non-inheritable signal
223 * state. This is called immediately after commit_creds().
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 * @bprm_secureexec:
Eric Paris7b41b172008-04-23 14:10:25 -0400225 * Return a boolean value (0 or 1) indicating whether a "secure exec"
226 * is required. The flag is passed in the auxiliary table
227 * on the initial stack to the ELF interpreter to indicate whether libc
228 * should enable secure mode.
229 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 *
231 * Security hooks for filesystem operations.
232 *
233 * @sb_alloc_security:
234 * Allocate and attach a security structure to the sb->s_security field.
235 * The s_security field is initialized to NULL when the structure is
236 * allocated.
237 * @sb contains the super_block structure to be modified.
238 * Return 0 if operation was successful.
239 * @sb_free_security:
240 * Deallocate and clear the sb->s_security field.
241 * @sb contains the super_block structure to be modified.
242 * @sb_statfs:
David Howells726c3342006-06-23 02:02:58 -0700243 * Check permission before obtaining filesystem statistics for the @mnt
244 * mountpoint.
245 * @dentry is a handle on the superblock for the filesystem.
Eric Paris7b41b172008-04-23 14:10:25 -0400246 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 * @sb_mount:
248 * Check permission before an object specified by @dev_name is mounted on
249 * the mount point named by @nd. For an ordinary mount, @dev_name
250 * identifies a device if the file system type requires a device. For a
251 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
252 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
253 * pathname of the object being mounted.
254 * @dev_name contains the name for object being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400255 * @path contains the path for mount point object.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 * @type contains the filesystem type.
257 * @flags contains the mount flags.
258 * @data contains the filesystem-specific data.
259 * Return 0 if permission is granted.
260 * @sb_copy_data:
261 * Allow mount option data to be copied prior to parsing by the filesystem,
262 * so that the security module can extract security-specific mount
263 * options cleanly (a filesystem may modify the data e.g. with strsep()).
264 * This also allows the original mount data to be stripped of security-
265 * specific options to avoid having to make filesystems aware of them.
266 * @type the type of filesystem being mounted.
267 * @orig the original mount data copied from userspace.
268 * @copy copied data which will be passed to the security module.
269 * Returns 0 if the copy was successful.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 * @sb_umount:
271 * Check permission before the @mnt file system is unmounted.
272 * @mnt contains the mounted file system.
273 * @flags contains the unmount flags, e.g. MNT_FORCE.
274 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 * @sb_pivotroot:
276 * Check permission before pivoting the root filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400277 * @old_path contains the path for the new location of the current root (put_old).
Eric Paris7b41b172008-04-23 14:10:25 -0400278 * @new_path contains the path for the new root (new_root).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 * Return 0 if permission is granted.
Eric Parisc9180a52007-11-30 13:00:35 -0500280 * @sb_set_mnt_opts:
281 * Set the security relevant mount options used for a superblock
282 * @sb the superblock to set security mount options for
Eric Parise0007522008-03-05 10:31:54 -0500283 * @opts binary data structure containing all lsm mount data
Eric Parisc9180a52007-11-30 13:00:35 -0500284 * @sb_clone_mnt_opts:
285 * Copy all security options from a given superblock to another
286 * @oldsb old superblock which contain information to clone
287 * @newsb new superblock which needs filled in
Eric Parise0007522008-03-05 10:31:54 -0500288 * @sb_parse_opts_str:
289 * Parse a string of security data filling in the opts structure
290 * @options string containing all mount options known by the LSM
291 * @opts binary data structure usable by the LSM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292 *
293 * Security hooks for inode operations.
294 *
295 * @inode_alloc_security:
296 * Allocate and attach a security structure to @inode->i_security. The
297 * i_security field is initialized to NULL when the inode structure is
298 * allocated.
299 * @inode contains the inode structure.
300 * Return 0 if operation was successful.
301 * @inode_free_security:
302 * @inode contains the inode structure.
303 * Deallocate the inode security structure and set @inode->i_security to
Eric Paris7b41b172008-04-23 14:10:25 -0400304 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700305 * @inode_init_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400306 * Obtain the security attribute name suffix and value to set on a newly
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700307 * created inode and set up the incore security field for the new inode.
308 * This hook is called by the fs code as part of the inode creation
309 * transaction and provides for atomic labeling of the inode, unlike
310 * the post_create/mkdir/... hooks called by the VFS. The hook function
311 * is expected to allocate the name and value via kmalloc, with the caller
312 * being responsible for calling kfree after using them.
313 * If the security module does not use security attributes or does
314 * not wish to put a security attribute on this particular inode,
315 * then it should return -EOPNOTSUPP to skip this processing.
316 * @inode contains the inode structure of the newly created inode.
317 * @dir contains the inode structure of the parent directory.
318 * @name will be set to the allocated name suffix (e.g. selinux).
319 * @value will be set to the allocated attribute value.
320 * @len will be set to the length of the value.
321 * Returns 0 if @name and @value have been successfully set,
322 * -EOPNOTSUPP if no security attribute is needed, or
323 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 * @inode_create:
325 * Check permission to create a regular file.
326 * @dir contains inode structure of the parent of the new file.
327 * @dentry contains the dentry structure for the file to be created.
328 * @mode contains the file mode of the file to be created.
329 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 * @inode_link:
331 * Check permission before creating a new hard link to a file.
332 * @old_dentry contains the dentry structure for an existing link to the file.
333 * @dir contains the inode structure of the parent directory of the new link.
334 * @new_dentry contains the dentry structure for the new link.
335 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900336 * @path_link:
337 * Check permission before creating a new hard link to a file.
338 * @old_dentry contains the dentry structure for an existing link
339 * to the file.
340 * @new_dir contains the path structure of the parent directory of
341 * the new link.
342 * @new_dentry contains the dentry structure for the new link.
343 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 * @inode_unlink:
Eric Paris7b41b172008-04-23 14:10:25 -0400345 * Check the permission to remove a hard link to a file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 * @dir contains the inode structure of parent directory of the file.
347 * @dentry contains the dentry structure for file to be unlinked.
348 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900349 * @path_unlink:
350 * Check the permission to remove a hard link to a file.
351 * @dir contains the path structure of parent directory of the file.
352 * @dentry contains the dentry structure for file to be unlinked.
353 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354 * @inode_symlink:
355 * Check the permission to create a symbolic link to a file.
356 * @dir contains the inode structure of parent directory of the symbolic link.
357 * @dentry contains the dentry structure of the symbolic link.
358 * @old_name contains the pathname of file.
359 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900360 * @path_symlink:
361 * Check the permission to create a symbolic link to a file.
362 * @dir contains the path structure of parent directory of
363 * the symbolic link.
364 * @dentry contains the dentry structure of the symbolic link.
365 * @old_name contains the pathname of file.
366 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367 * @inode_mkdir:
368 * Check permissions to create a new directory in the existing directory
Eric Paris7b41b172008-04-23 14:10:25 -0400369 * associated with inode strcture @dir.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370 * @dir containst the inode structure of parent of the directory to be created.
371 * @dentry contains the dentry structure of new directory.
372 * @mode contains the mode of new directory.
373 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900374 * @path_mkdir:
375 * Check permissions to create a new directory in the existing directory
376 * associated with path strcture @path.
377 * @dir containst the path structure of parent of the directory
378 * to be created.
379 * @dentry contains the dentry structure of new directory.
380 * @mode contains the mode of new directory.
381 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 * @inode_rmdir:
383 * Check the permission to remove a directory.
384 * @dir contains the inode structure of parent of the directory to be removed.
385 * @dentry contains the dentry structure of directory to be removed.
386 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900387 * @path_rmdir:
388 * Check the permission to remove a directory.
389 * @dir contains the path structure of parent of the directory to be
390 * removed.
391 * @dentry contains the dentry structure of directory to be removed.
392 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 * @inode_mknod:
394 * Check permissions when creating a special file (or a socket or a fifo
395 * file created via the mknod system call). Note that if mknod operation
396 * is being done for a regular file, then the create hook will be called
397 * and not this hook.
398 * @dir contains the inode structure of parent of the new file.
399 * @dentry contains the dentry structure of the new file.
400 * @mode contains the mode of the new file.
Michael Opdenacker59c51592007-05-09 08:57:56 +0200401 * @dev contains the device number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900403 * @path_mknod:
404 * Check permissions when creating a file. Note that this hook is called
405 * even if mknod operation is being done for a regular file.
406 * @dir contains the path structure of parent of the new file.
407 * @dentry contains the dentry structure of the new file.
408 * @mode contains the mode of the new file.
409 * @dev contains the undecoded device number. Use new_decode_dev() to get
410 * the decoded device number.
411 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 * @inode_rename:
413 * Check for permission to rename a file or directory.
414 * @old_dir contains the inode structure for parent of the old link.
415 * @old_dentry contains the dentry structure of the old link.
416 * @new_dir contains the inode structure for parent of the new link.
417 * @new_dentry contains the dentry structure of the new link.
418 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900419 * @path_rename:
420 * Check for permission to rename a file or directory.
421 * @old_dir contains the path structure for parent of the old link.
422 * @old_dentry contains the dentry structure of the old link.
423 * @new_dir contains the path structure for parent of the new link.
424 * @new_dentry contains the dentry structure of the new link.
425 * Return 0 if permission is granted.
Tetsuo Handa89eda062009-10-04 21:49:47 +0900426 * @path_chmod:
427 * Check for permission to change DAC's permission of a file or directory.
428 * @dentry contains the dentry structure.
429 * @mnt contains the vfsmnt structure.
430 * @mode contains DAC's mode.
431 * Return 0 if permission is granted.
432 * @path_chown:
433 * Check for permission to change owner/group of a file or directory.
434 * @path contains the path structure.
435 * @uid contains new owner's ID.
436 * @gid contains new group's ID.
437 * Return 0 if permission is granted.
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900438 * @path_chroot:
439 * Check for permission to change root directory.
440 * @path contains the path structure.
441 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 * @inode_readlink:
443 * Check the permission to read the symbolic link.
444 * @dentry contains the dentry structure for the file link.
445 * Return 0 if permission is granted.
446 * @inode_follow_link:
447 * Check permission to follow a symbolic link when looking up a pathname.
448 * @dentry contains the dentry structure for the link.
449 * @nd contains the nameidata structure for the parent directory.
450 * Return 0 if permission is granted.
451 * @inode_permission:
452 * Check permission before accessing an inode. This hook is called by the
453 * existing Linux permission function, so a security module can use it to
454 * provide additional checking for existing Linux permission checks.
455 * Notice that this hook is called when a file is opened (as well as many
456 * other operations), whereas the file_security_ops permission hook is
457 * called when the actual read/write operations are performed.
458 * @inode contains the inode structure to check.
459 * @mask contains the permission mask.
Eric Paris7b41b172008-04-23 14:10:25 -0400460 * @nd contains the nameidata (may be NULL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 * Return 0 if permission is granted.
462 * @inode_setattr:
463 * Check permission before setting file attributes. Note that the kernel
464 * call to notify_change is performed from several locations, whenever
465 * file attributes change (such as when a file is truncated, chown/chmod
466 * operations, transferring disk quotas, etc).
467 * @dentry contains the dentry structure for the file.
468 * @attr is the iattr structure containing the new file attributes.
469 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900470 * @path_truncate:
471 * Check permission before truncating a file.
472 * @path contains the path structure for the file.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900473 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 * @inode_getattr:
475 * Check permission before obtaining file attributes.
476 * @mnt is the vfsmount where the dentry was looked up
477 * @dentry contains the dentry structure for the file.
478 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 * @inode_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400480 * Check permission before setting the extended attributes
481 * @value identified by @name for @dentry.
482 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 * @inode_post_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400484 * Update inode security field after successful setxattr operation.
485 * @value identified by @name for @dentry.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 * @inode_getxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400487 * Check permission before obtaining the extended attributes
488 * identified by @name for @dentry.
489 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 * @inode_listxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400491 * Check permission before obtaining the list of extended attribute
492 * names for @dentry.
493 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 * @inode_removexattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400495 * Check permission before removing the extended attribute
496 * identified by @name for @dentry.
497 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 * @inode_getsecurity:
David P. Quigley42492592008-02-04 22:29:39 -0800499 * Retrieve a copy of the extended attribute representation of the
500 * security label associated with @name for @inode via @buffer. Note that
501 * @name is the remainder of the attribute name after the security prefix
502 * has been removed. @alloc is used to specify of the call should return a
503 * value via the buffer or just the value length Return size of buffer on
504 * success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505 * @inode_setsecurity:
506 * Set the security label associated with @name for @inode from the
507 * extended attribute value @value. @size indicates the size of the
508 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
Eric Paris7b41b172008-04-23 14:10:25 -0400509 * Note that @name is the remainder of the attribute name after the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510 * security. prefix has been removed.
511 * Return 0 on success.
512 * @inode_listsecurity:
513 * Copy the extended attribute names for the security labels
514 * associated with @inode into @buffer. The maximum size of @buffer
515 * is specified by @buffer_size. @buffer may be NULL to request
516 * the size of the buffer required.
517 * Returns number of bytes used/required on success.
Serge E. Hallynb5376772007-10-16 23:31:36 -0700518 * @inode_need_killpriv:
519 * Called when an inode has been changed.
520 * @dentry is the dentry being changed.
521 * Return <0 on error to abort the inode change operation.
522 * Return 0 if inode_killpriv does not need to be called.
523 * Return >0 if inode_killpriv does need to be called.
524 * @inode_killpriv:
525 * The setuid bit is being removed. Remove similar security labels.
526 * Called with the dentry->d_inode->i_mutex held.
527 * @dentry is the dentry being changed.
528 * Return 0 on success. If error is returned, then the operation
529 * causing setuid bit removal is failed.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200530 * @inode_getsecid:
531 * Get the secid associated with the node.
532 * @inode contains a pointer to the inode.
533 * @secid contains a pointer to the location where result will be saved.
534 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535 *
536 * Security hooks for file operations
537 *
538 * @file_permission:
539 * Check file permissions before accessing an open file. This hook is
540 * called by various operations that read or write files. A security
541 * module can use this hook to perform additional checking on these
542 * operations, e.g. to revalidate permissions on use to support privilege
543 * bracketing or policy changes. Notice that this hook is used when the
544 * actual read/write operations are performed, whereas the
545 * inode_security_ops hook is called when a file is opened (as well as
546 * many other operations).
547 * Caveat: Although this hook can be used to revalidate permissions for
548 * various system call operations that read or write files, it does not
549 * address the revalidation of permissions for memory-mapped files.
550 * Security modules must handle this separately if they need such
551 * revalidation.
552 * @file contains the file structure being accessed.
553 * @mask contains the requested permissions.
554 * Return 0 if permission is granted.
555 * @file_alloc_security:
556 * Allocate and attach a security structure to the file->f_security field.
557 * The security field is initialized to NULL when the structure is first
558 * created.
559 * @file contains the file structure to secure.
560 * Return 0 if the hook is successful and permission is granted.
561 * @file_free_security:
562 * Deallocate and free any security structures stored in file->f_security.
563 * @file contains the file structure being modified.
564 * @file_ioctl:
565 * @file contains the file structure.
566 * @cmd contains the operation to perform.
567 * @arg contains the operational arguments.
568 * Check permission for an ioctl operation on @file. Note that @arg can
569 * sometimes represents a user space pointer; in other cases, it may be a
570 * simple integer value. When @arg represents a user space pointer, it
571 * should never be used by the security module.
572 * Return 0 if permission is granted.
573 * @file_mmap :
574 * Check permissions for a mmap operation. The @file may be NULL, e.g.
575 * if mapping anonymous memory.
576 * @file contains the file structure for file to map (may be NULL).
577 * @reqprot contains the protection requested by the application.
578 * @prot contains the protection that will be applied by the kernel.
579 * @flags contains the operational flags.
580 * Return 0 if permission is granted.
581 * @file_mprotect:
582 * Check permissions before changing memory access permissions.
583 * @vma contains the memory region to modify.
584 * @reqprot contains the protection requested by the application.
585 * @prot contains the protection that will be applied by the kernel.
586 * Return 0 if permission is granted.
587 * @file_lock:
588 * Check permission before performing file locking operations.
589 * Note: this hook mediates both flock and fcntl style locks.
590 * @file contains the file structure.
591 * @cmd contains the posix-translated lock operation to perform
592 * (e.g. F_RDLCK, F_WRLCK).
593 * Return 0 if permission is granted.
594 * @file_fcntl:
595 * Check permission before allowing the file operation specified by @cmd
596 * from being performed on the file @file. Note that @arg can sometimes
597 * represents a user space pointer; in other cases, it may be a simple
598 * integer value. When @arg represents a user space pointer, it should
599 * never be used by the security module.
600 * @file contains the file structure.
601 * @cmd contains the operation to be performed.
602 * @arg contains the operational arguments.
603 * Return 0 if permission is granted.
604 * @file_set_fowner:
605 * Save owner security information (typically from current->security) in
606 * file->f_security for later use by the send_sigiotask hook.
607 * @file contains the file structure to update.
608 * Return 0 on success.
609 * @file_send_sigiotask:
610 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
611 * process @tsk. Note that this hook is sometimes called from interrupt.
612 * Note that the fown_struct, @fown, is never outside the context of a
613 * struct file, so the file structure (and associated security information)
614 * can always be obtained:
Robert P. J. Dayb385a142007-02-10 01:46:25 -0800615 * container_of(fown, struct file, f_owner)
Eric Paris7b41b172008-04-23 14:10:25 -0400616 * @tsk contains the structure of task receiving signal.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617 * @fown contains the file owner information.
618 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
619 * Return 0 if permission is granted.
620 * @file_receive:
621 * This hook allows security modules to control the ability of a process
622 * to receive an open file descriptor via socket IPC.
623 * @file contains the file structure being received.
624 * Return 0 if permission is granted.
625 *
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +0900626 * Security hook for dentry
627 *
628 * @dentry_open
629 * Save open-time permission checking state for later use upon
630 * file_permission, and recheck access if anything has changed
631 * since inode_permission.
632 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633 * Security hooks for task operations.
634 *
635 * @task_create:
636 * Check permission before creating a child process. See the clone(2)
637 * manual page for definitions of the @clone_flags.
638 * @clone_flags contains the flags indicating what should be shared.
639 * Return 0 if permission is granted.
David Howellsee18d642009-09-02 09:14:21 +0100640 * @cred_alloc_blank:
641 * @cred points to the credentials.
642 * @gfp indicates the atomicity of any memory allocations.
643 * Only allocate sufficient memory and attach to @cred such that
644 * cred_transfer() will not get ENOMEM.
David Howellsf1752ee2008-11-14 10:39:17 +1100645 * @cred_free:
646 * @cred points to the credentials.
647 * Deallocate and clear the cred->security field in a set of credentials.
David Howellsd84f4f92008-11-14 10:39:23 +1100648 * @cred_prepare:
649 * @new points to the new credentials.
650 * @old points to the original credentials.
651 * @gfp indicates the atomicity of any memory allocations.
652 * Prepare a new set of credentials by copying the data from the old set.
David Howellsee18d642009-09-02 09:14:21 +0100653 * @cred_transfer:
654 * @new points to the new credentials.
655 * @old points to the original credentials.
656 * Transfer data from original creds to new creds
David Howells3a3b7ce2008-11-14 10:39:28 +1100657 * @kernel_act_as:
658 * Set the credentials for a kernel service to act as (subjective context).
659 * @new points to the credentials to be modified.
660 * @secid specifies the security ID to be set
661 * The current task must be the one that nominated @secid.
662 * Return 0 if successful.
663 * @kernel_create_files_as:
664 * Set the file creation context in a set of credentials to be the same as
665 * the objective context of the specified inode.
666 * @new points to the credentials to be modified.
667 * @inode points to the inode to use as a reference.
668 * The current task must be the one that nominated @inode.
669 * Return 0 if successful.
Eric Paris91884992009-08-13 09:44:57 -0400670 * @kernel_module_request:
671 * Ability to trigger the kernel to automatically upcall to userspace for
672 * userspace to load a kernel module with the given name.
Eric Parisdd8dbf22009-11-03 16:35:32 +1100673 * @kmod_name name of the module requested by the kernel
James Morrisf322abf2009-08-14 11:19:29 +1000674 * Return 0 if successful.
David Howellsd84f4f92008-11-14 10:39:23 +1100675 * @task_fix_setuid:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676 * Update the module's state after setting one or more of the user
677 * identity attributes of the current process. The @flags parameter
678 * indicates which of the set*uid system calls invoked this hook. If
David Howellsd84f4f92008-11-14 10:39:23 +1100679 * @new is the set of credentials that will be installed. Modifications
680 * should be made to this rather than to @current->cred.
681 * @old is the set of credentials that are being replaces
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 * @flags contains one of the LSM_SETID_* values.
683 * Return 0 on success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684 * @task_setpgid:
685 * Check permission before setting the process group identifier of the
686 * process @p to @pgid.
687 * @p contains the task_struct for process being modified.
688 * @pgid contains the new pgid.
689 * Return 0 if permission is granted.
690 * @task_getpgid:
691 * Check permission before getting the process group identifier of the
692 * process @p.
693 * @p contains the task_struct for the process.
694 * Return 0 if permission is granted.
695 * @task_getsid:
696 * Check permission before getting the session identifier of the process
697 * @p.
698 * @p contains the task_struct for the process.
699 * Return 0 if permission is granted.
David Quigleyf9008e42006-06-30 01:55:46 -0700700 * @task_getsecid:
701 * Retrieve the security identifier of the process @p.
702 * @p contains the task_struct for the process and place is into @secid.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200703 * In case of failure, @secid will be set to zero.
704 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 * @task_setnice:
706 * Check permission before setting the nice value of @p to @nice.
707 * @p contains the task_struct of process.
708 * @nice contains the new nice value.
709 * Return 0 if permission is granted.
James Morris03e68062006-06-23 02:03:58 -0700710 * @task_setioprio
711 * Check permission before setting the ioprio value of @p to @ioprio.
712 * @p contains the task_struct of process.
713 * @ioprio contains the new ioprio value
714 * Return 0 if permission is granted.
David Quigleya1836a42006-06-30 01:55:49 -0700715 * @task_getioprio
716 * Check permission before getting the ioprio value of @p.
717 * @p contains the task_struct of process.
718 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719 * @task_setrlimit:
720 * Check permission before setting the resource limits of the current
721 * process for @resource to @new_rlim. The old resource limit values can
722 * be examined by dereferencing (current->signal->rlim + resource).
723 * @resource contains the resource whose limit is being set.
724 * @new_rlim contains the new limits for @resource.
725 * Return 0 if permission is granted.
726 * @task_setscheduler:
727 * Check permission before setting scheduling policy and/or parameters of
728 * process @p based on @policy and @lp.
729 * @p contains the task_struct for process.
730 * @policy contains the scheduling policy.
731 * @lp contains the scheduling parameters.
732 * Return 0 if permission is granted.
733 * @task_getscheduler:
734 * Check permission before obtaining scheduling information for process
735 * @p.
736 * @p contains the task_struct for process.
737 * Return 0 if permission is granted.
David Quigley35601542006-06-23 02:04:01 -0700738 * @task_movememory
739 * Check permission before moving memory owned by process @p.
740 * @p contains the task_struct for process.
741 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742 * @task_kill:
743 * Check permission before sending signal @sig to @p. @info can be NULL,
744 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
745 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
746 * from the kernel and should typically be permitted.
747 * SIGIO signals are handled separately by the send_sigiotask hook in
748 * file_security_ops.
749 * @p contains the task_struct for process.
750 * @info contains the signal information.
751 * @sig contains the signal value.
David Quigleyf9008e42006-06-30 01:55:46 -0700752 * @secid contains the sid of the process where the signal originated
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753 * Return 0 if permission is granted.
754 * @task_wait:
755 * Check permission before allowing a process to reap a child process @p
756 * and collect its status information.
757 * @p contains the task_struct for process.
758 * Return 0 if permission is granted.
759 * @task_prctl:
760 * Check permission before performing a process control operation on the
761 * current process.
762 * @option contains the operation.
763 * @arg2 contains a argument.
764 * @arg3 contains a argument.
765 * @arg4 contains a argument.
766 * @arg5 contains a argument.
David Howellsd84f4f92008-11-14 10:39:23 +1100767 * Return -ENOSYS if no-one wanted to handle this op, any other value to
768 * cause prctl() to return immediately with that value.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769 * @task_to_inode:
Eric Paris7b41b172008-04-23 14:10:25 -0400770 * Set the security attributes for an inode based on an associated task's
771 * security attributes, e.g. for /proc/pid inodes.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772 * @p contains the task_struct for the task.
773 * @inode contains the inode structure for the inode.
774 *
775 * Security hooks for Netlink messaging.
776 *
777 * @netlink_send:
778 * Save security information for a netlink message so that permission
779 * checking can be performed when the message is processed. The security
780 * information can be saved using the eff_cap field of the
Eric Paris7b41b172008-04-23 14:10:25 -0400781 * netlink_skb_parms structure. Also may be used to provide fine
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782 * grained control over message transmission.
783 * @sk associated sock of task sending the message.,
784 * @skb contains the sk_buff structure for the netlink message.
785 * Return 0 if the information was successfully saved and message
786 * is allowed to be transmitted.
787 * @netlink_recv:
788 * Check permission before processing the received netlink message in
789 * @skb.
790 * @skb contains the sk_buff structure for the netlink message.
Darrel Goeddelc7bdb542006-06-27 13:26:11 -0700791 * @cap indicates the capability required
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792 * Return 0 if permission is granted.
793 *
794 * Security hooks for Unix domain networking.
795 *
796 * @unix_stream_connect:
797 * Check permissions before establishing a Unix domain stream connection
798 * between @sock and @other.
David S. Miller3610cda2011-01-05 15:38:53 -0800799 * @sock contains the sock structure.
800 * @other contains the peer sock structure.
801 * @newsk contains the new sock structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 * Return 0 if permission is granted.
803 * @unix_may_send:
804 * Check permissions before connecting or sending datagrams from @sock to
805 * @other.
806 * @sock contains the socket structure.
807 * @sock contains the peer socket structure.
808 * Return 0 if permission is granted.
809 *
810 * The @unix_stream_connect and @unix_may_send hooks were necessary because
811 * Linux provides an alternative to the conventional file name space for Unix
812 * domain sockets. Whereas binding and connecting to sockets in the file name
813 * space is mediated by the typical file permissions (and caught by the mknod
814 * and permission hooks in inode_security_ops), binding and connecting to
815 * sockets in the abstract name space is completely unmediated. Sufficient
816 * control of Unix domain sockets in the abstract name space isn't possible
817 * using only the socket layer hooks, since we need to know the actual target
818 * socket, which is not looked up until we are inside the af_unix code.
819 *
820 * Security hooks for socket operations.
821 *
822 * @socket_create:
823 * Check permissions prior to creating a new socket.
824 * @family contains the requested protocol family.
825 * @type contains the requested communications type.
826 * @protocol contains the requested protocol.
827 * @kern set to 1 if a kernel socket.
828 * Return 0 if permission is granted.
829 * @socket_post_create:
830 * This hook allows a module to update or allocate a per-socket security
831 * structure. Note that the security field was not added directly to the
832 * socket structure, but rather, the socket security information is stored
833 * in the associated inode. Typically, the inode alloc_security hook will
834 * allocate and and attach security information to
835 * sock->inode->i_security. This hook may be used to update the
836 * sock->inode->i_security field with additional information that wasn't
837 * available when the inode was allocated.
838 * @sock contains the newly created socket structure.
839 * @family contains the requested protocol family.
840 * @type contains the requested communications type.
841 * @protocol contains the requested protocol.
842 * @kern set to 1 if a kernel socket.
843 * @socket_bind:
844 * Check permission before socket protocol layer bind operation is
845 * performed and the socket @sock is bound to the address specified in the
846 * @address parameter.
847 * @sock contains the socket structure.
848 * @address contains the address to bind to.
849 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400850 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851 * @socket_connect:
852 * Check permission before socket protocol layer connect operation
853 * attempts to connect socket @sock to a remote address, @address.
854 * @sock contains the socket structure.
855 * @address contains the address of remote endpoint.
856 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400857 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 * @socket_listen:
859 * Check permission before socket protocol layer listen operation.
860 * @sock contains the socket structure.
861 * @backlog contains the maximum length for the pending connection queue.
862 * Return 0 if permission is granted.
863 * @socket_accept:
864 * Check permission before accepting a new connection. Note that the new
865 * socket, @newsock, has been created and some information copied to it,
866 * but the accept operation has not actually been performed.
867 * @sock contains the listening socket structure.
868 * @newsock contains the newly created server socket for connection.
869 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870 * @socket_sendmsg:
871 * Check permission before transmitting a message to another socket.
872 * @sock contains the socket structure.
873 * @msg contains the message to be transmitted.
874 * @size contains the size of message.
875 * Return 0 if permission is granted.
876 * @socket_recvmsg:
877 * Check permission before receiving a message from a socket.
878 * @sock contains the socket structure.
879 * @msg contains the message structure.
880 * @size contains the size of message structure.
881 * @flags contains the operational flags.
Eric Paris7b41b172008-04-23 14:10:25 -0400882 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883 * @socket_getsockname:
884 * Check permission before the local address (name) of the socket object
885 * @sock is retrieved.
886 * @sock contains the socket structure.
887 * Return 0 if permission is granted.
888 * @socket_getpeername:
889 * Check permission before the remote address (name) of a socket object
890 * @sock is retrieved.
891 * @sock contains the socket structure.
892 * Return 0 if permission is granted.
893 * @socket_getsockopt:
894 * Check permissions before retrieving the options associated with socket
895 * @sock.
896 * @sock contains the socket structure.
897 * @level contains the protocol level to retrieve option from.
898 * @optname contains the name of option to retrieve.
899 * Return 0 if permission is granted.
900 * @socket_setsockopt:
901 * Check permissions before setting the options associated with socket
902 * @sock.
903 * @sock contains the socket structure.
904 * @level contains the protocol level to set options for.
905 * @optname contains the name of the option to set.
Eric Paris7b41b172008-04-23 14:10:25 -0400906 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907 * @socket_shutdown:
908 * Checks permission before all or part of a connection on the socket
909 * @sock is shut down.
910 * @sock contains the socket structure.
911 * @how contains the flag indicating how future sends and receives are handled.
912 * Return 0 if permission is granted.
913 * @socket_sock_rcv_skb:
914 * Check permissions on incoming network packets. This hook is distinct
915 * from Netfilter's IP input hooks since it is the first time that the
916 * incoming sk_buff @skb has been associated with a particular socket, @sk.
Tetsuo Handa0ed73182010-01-06 09:23:54 +0900917 * Must not sleep inside this hook because some callers hold spinlocks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 * @sk contains the sock (not socket) associated with the incoming sk_buff.
919 * @skb contains the incoming network data.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200920 * @socket_getpeersec_stream:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921 * This hook allows the security module to provide peer socket security
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200922 * state for unix or connected tcp sockets to userspace via getsockopt
923 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
924 * socket is associated with an ipsec SA.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 * @sock is the local socket.
926 * @optval userspace memory where the security state is to be copied.
927 * @optlen userspace int where the module should copy the actual length
928 * of the security state.
929 * @len as input is the maximum length to copy to userspace provided
930 * by the caller.
931 * Return 0 if all is well, otherwise, typical getsockopt return
932 * values.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200933 * @socket_getpeersec_dgram:
Eric Paris7b41b172008-04-23 14:10:25 -0400934 * This hook allows the security module to provide peer socket security
935 * state for udp sockets on a per-packet basis to userspace via
936 * getsockopt SO_GETPEERSEC. The application must first have indicated
937 * the IP_PASSSEC option via getsockopt. It can then retrieve the
938 * security state returned by this hook for a packet via the SCM_SECURITY
939 * ancillary message type.
940 * @skb is the skbuff for the packet being queried
941 * @secdata is a pointer to a buffer in which to copy the security data
942 * @seclen is the maximum length for @secdata
943 * Return 0 on success, error on failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 * @sk_alloc_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400945 * Allocate and attach a security structure to the sk->sk_security field,
946 * which is used to copy security attributes between local stream sockets.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947 * @sk_free_security:
948 * Deallocate security structure.
Venkat Yekkirala892c1412006-08-04 23:08:56 -0700949 * @sk_clone_security:
950 * Clone/copy security structure.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700951 * @sk_getsecid:
952 * Retrieve the LSM-specific secid for the sock to enable caching of network
Trent Jaegerdf718372005-12-13 23:12:27 -0800953 * authorizations.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700954 * @sock_graft:
955 * Sets the socket's isec sid to the sock's sid.
956 * @inet_conn_request:
957 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
958 * @inet_csk_clone:
959 * Sets the new child socket's sid to the openreq sid.
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600960 * @inet_conn_established:
Eric Paris7b41b172008-04-23 14:10:25 -0400961 * Sets the connection's peersid to the secmark on skb.
Eric Paris2606fd12010-10-13 16:24:41 -0400962 * @secmark_relabel_packet:
963 * check if the process should be allowed to relabel packets to the given secid
964 * @security_secmark_refcount_inc
965 * tells the LSM to increment the number of secmark labeling rules loaded
966 * @security_secmark_refcount_dec
967 * tells the LSM to decrement the number of secmark labeling rules loaded
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700968 * @req_classify_flow:
969 * Sets the flow's sid to the openreq sid.
Paul Moore2b980db2009-08-28 18:12:43 -0400970 * @tun_dev_create:
971 * Check permissions prior to creating a new TUN device.
972 * @tun_dev_post_create:
973 * This hook allows a module to update or allocate a per-socket security
974 * structure.
975 * @sk contains the newly created sock structure.
976 * @tun_dev_attach:
977 * Check permissions prior to attaching to a persistent TUN device. This
978 * hook can also be used by the module to update any security state
979 * associated with the TUN device's sock structure.
980 * @sk contains the existing sock structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800981 *
982 * Security hooks for XFRM operations.
983 *
984 * @xfrm_policy_alloc_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700985 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
986 * Database used by the XFRM system.
Trent Jaegerdf718372005-12-13 23:12:27 -0800987 * @sec_ctx contains the security context information being provided by
988 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700989 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600990 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -0800991 * Return 0 if operation was successful (memory to allocate, legal context)
992 * @xfrm_policy_clone_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700993 * @old_ctx contains an existing xfrm_sec_ctx.
994 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
995 * Allocate a security structure in new_ctxp that contains the
996 * information from the old_ctx structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800997 * Return 0 if operation was successful (memory to allocate).
998 * @xfrm_policy_free_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700999 * @ctx contains the xfrm_sec_ctx
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001000 * Deallocate xp->security.
1001 * @xfrm_policy_delete_security:
Paul Moore03e1ad72008-04-12 19:07:52 -07001002 * @ctx contains the xfrm_sec_ctx.
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001003 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -08001004 * @xfrm_state_alloc_security:
1005 * @x contains the xfrm_state being added to the Security Association
1006 * Database by the XFRM system.
1007 * @sec_ctx contains the security context information being provided by
1008 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001009 * @secid contains the secid from which to take the mls portion of the context.
1010 * Allocate a security structure to the x->security field; the security
1011 * field is initialized to NULL when the xfrm_state is allocated. Set the
1012 * context to correspond to either sec_ctx or polsec, with the mls portion
1013 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -08001014 * Return 0 if operation was successful (memory to allocate, legal context).
1015 * @xfrm_state_free_security:
1016 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001017 * Deallocate x->security.
1018 * @xfrm_state_delete_security:
1019 * @x contains the xfrm_state.
1020 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -08001021 * @xfrm_policy_lookup:
Paul Moore03e1ad72008-04-12 19:07:52 -07001022 * @ctx contains the xfrm_sec_ctx for which the access control is being
Trent Jaegerdf718372005-12-13 23:12:27 -08001023 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001024 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -08001025 * access to the policy xp.
1026 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001027 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -08001028 * XFRMs on a packet. The hook is called when selecting either a
1029 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -05001030 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
1031 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001032 * @xfrm_state_pol_flow_match:
1033 * @x contains the state to match.
1034 * @xp contains the policy to check for a match.
1035 * @fl contains the flow to check for a match.
1036 * Return 1 if there is a match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001037 * @xfrm_decode_session:
1038 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001039 * @secid points to the flow key secid to set.
1040 * @ckall says if all xfrms used should be checked for same secid.
1041 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042 *
David Howells29db9192005-10-30 15:02:44 -08001043 * Security hooks affecting all Key Management operations
1044 *
1045 * @key_alloc:
1046 * Permit allocation of a key and assign security data. Note that key does
1047 * not have a serial number assigned at this point.
1048 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -07001049 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -08001050 * Return 0 if permission is granted, -ve error otherwise.
1051 * @key_free:
1052 * Notification of destruction; free security data.
1053 * @key points to the key.
1054 * No return value.
1055 * @key_permission:
1056 * See whether a specific operational right is granted to a process on a
Eric Paris7b41b172008-04-23 14:10:25 -04001057 * key.
David Howells29db9192005-10-30 15:02:44 -08001058 * @key_ref refers to the key (key pointer + possession attribute bit).
David Howellsd84f4f92008-11-14 10:39:23 +11001059 * @cred points to the credentials to provide the context against which to
Eric Paris7b41b172008-04-23 14:10:25 -04001060 * evaluate the security data on the key.
David Howells29db9192005-10-30 15:02:44 -08001061 * @perm describes the combination of permissions required of this key.
1062 * Return 1 if permission granted, 0 if permission denied and -ve it the
Eric Paris7b41b172008-04-23 14:10:25 -04001063 * normal permissions model should be effected.
David Howells70a5bb72008-04-29 01:01:26 -07001064 * @key_getsecurity:
1065 * Get a textual representation of the security context attached to a key
1066 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1067 * allocates the storage for the NUL-terminated string and the caller
1068 * should free it.
1069 * @key points to the key to be queried.
1070 * @_buffer points to a pointer that should be set to point to the
1071 * resulting string (if no label or an error occurs).
1072 * Return the length of the string (including terminating NUL) or -ve if
1073 * an error.
1074 * May also return 0 (and a NULL buffer pointer) if there is no label.
David Howells29db9192005-10-30 15:02:44 -08001075 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 * Security hooks affecting all System V IPC operations.
1077 *
1078 * @ipc_permission:
1079 * Check permissions for access to IPC
1080 * @ipcp contains the kernel IPC permission structure
1081 * @flag contains the desired (requested) permission set
1082 * Return 0 if permission is granted.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001083 * @ipc_getsecid:
1084 * Get the secid associated with the ipc object.
1085 * @ipcp contains the kernel IPC permission structure.
1086 * @secid contains a pointer to the location where result will be saved.
1087 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088 *
1089 * Security hooks for individual messages held in System V IPC message queues
1090 * @msg_msg_alloc_security:
1091 * Allocate and attach a security structure to the msg->security field.
1092 * The security field is initialized to NULL when the structure is first
1093 * created.
1094 * @msg contains the message structure to be modified.
1095 * Return 0 if operation was successful and permission is granted.
1096 * @msg_msg_free_security:
1097 * Deallocate the security structure for this message.
1098 * @msg contains the message structure to be modified.
1099 *
1100 * Security hooks for System V IPC Message Queues
1101 *
1102 * @msg_queue_alloc_security:
1103 * Allocate and attach a security structure to the
1104 * msq->q_perm.security field. The security field is initialized to
1105 * NULL when the structure is first created.
1106 * @msq contains the message queue structure to be modified.
1107 * Return 0 if operation was successful and permission is granted.
1108 * @msg_queue_free_security:
1109 * Deallocate security structure for this message queue.
1110 * @msq contains the message queue structure to be modified.
1111 * @msg_queue_associate:
1112 * Check permission when a message queue is requested through the
1113 * msgget system call. This hook is only called when returning the
1114 * message queue identifier for an existing message queue, not when a
1115 * new message queue is created.
1116 * @msq contains the message queue to act upon.
1117 * @msqflg contains the operation control flags.
1118 * Return 0 if permission is granted.
1119 * @msg_queue_msgctl:
1120 * Check permission when a message control operation specified by @cmd
1121 * is to be performed on the message queue @msq.
1122 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1123 * @msq contains the message queue to act upon. May be NULL.
1124 * @cmd contains the operation to be performed.
Eric Paris7b41b172008-04-23 14:10:25 -04001125 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 * @msg_queue_msgsnd:
1127 * Check permission before a message, @msg, is enqueued on the message
1128 * queue, @msq.
1129 * @msq contains the message queue to send message to.
1130 * @msg contains the message to be enqueued.
1131 * @msqflg contains operational flags.
1132 * Return 0 if permission is granted.
1133 * @msg_queue_msgrcv:
1134 * Check permission before a message, @msg, is removed from the message
Eric Paris7b41b172008-04-23 14:10:25 -04001135 * queue, @msq. The @target task structure contains a pointer to the
1136 * process that will be receiving the message (not equal to the current
Linus Torvalds1da177e2005-04-16 15:20:36 -07001137 * process when inline receives are being performed).
1138 * @msq contains the message queue to retrieve message from.
1139 * @msg contains the message destination.
1140 * @target contains the task structure for recipient process.
1141 * @type contains the type of message requested.
1142 * @mode contains the operational flags.
1143 * Return 0 if permission is granted.
1144 *
1145 * Security hooks for System V Shared Memory Segments
1146 *
1147 * @shm_alloc_security:
1148 * Allocate and attach a security structure to the shp->shm_perm.security
1149 * field. The security field is initialized to NULL when the structure is
1150 * first created.
1151 * @shp contains the shared memory structure to be modified.
1152 * Return 0 if operation was successful and permission is granted.
1153 * @shm_free_security:
1154 * Deallocate the security struct for this memory segment.
1155 * @shp contains the shared memory structure to be modified.
1156 * @shm_associate:
1157 * Check permission when a shared memory region is requested through the
1158 * shmget system call. This hook is only called when returning the shared
1159 * memory region identifier for an existing region, not when a new shared
1160 * memory region is created.
1161 * @shp contains the shared memory structure to be modified.
1162 * @shmflg contains the operation control flags.
1163 * Return 0 if permission is granted.
1164 * @shm_shmctl:
1165 * Check permission when a shared memory control operation specified by
1166 * @cmd is to be performed on the shared memory region @shp.
1167 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1168 * @shp contains shared memory structure to be modified.
1169 * @cmd contains the operation to be performed.
1170 * Return 0 if permission is granted.
1171 * @shm_shmat:
1172 * Check permissions prior to allowing the shmat system call to attach the
1173 * shared memory segment @shp to the data segment of the calling process.
1174 * The attaching address is specified by @shmaddr.
1175 * @shp contains the shared memory structure to be modified.
1176 * @shmaddr contains the address to attach memory region to.
1177 * @shmflg contains the operational flags.
1178 * Return 0 if permission is granted.
1179 *
1180 * Security hooks for System V Semaphores
1181 *
1182 * @sem_alloc_security:
1183 * Allocate and attach a security structure to the sma->sem_perm.security
1184 * field. The security field is initialized to NULL when the structure is
1185 * first created.
1186 * @sma contains the semaphore structure
1187 * Return 0 if operation was successful and permission is granted.
1188 * @sem_free_security:
1189 * deallocate security struct for this semaphore
1190 * @sma contains the semaphore structure.
1191 * @sem_associate:
1192 * Check permission when a semaphore is requested through the semget
1193 * system call. This hook is only called when returning the semaphore
1194 * identifier for an existing semaphore, not when a new one must be
1195 * created.
1196 * @sma contains the semaphore structure.
1197 * @semflg contains the operation control flags.
1198 * Return 0 if permission is granted.
1199 * @sem_semctl:
1200 * Check permission when a semaphore operation specified by @cmd is to be
Eric Paris7b41b172008-04-23 14:10:25 -04001201 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202 * IPC_INFO or SEM_INFO.
1203 * @sma contains the semaphore structure. May be NULL.
1204 * @cmd contains the operation to be performed.
1205 * Return 0 if permission is granted.
1206 * @sem_semop
1207 * Check permissions before performing operations on members of the
Eric Paris7b41b172008-04-23 14:10:25 -04001208 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1209 * may be modified.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210 * @sma contains the semaphore structure.
1211 * @sops contains the operations to perform.
1212 * @nsops contains the number of operations to perform.
1213 * @alter contains the flag indicating whether changes are to be made.
1214 * Return 0 if permission is granted.
1215 *
Ingo Molnar9e488582009-05-07 19:26:19 +10001216 * @ptrace_access_check:
David Howells5cd9c582008-08-14 11:37:28 +01001217 * Check permission before allowing the current process to trace the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 * @child process.
1219 * Security modules may also want to perform a process tracing check
1220 * during an execve in the set_security or apply_creds hooks of
David Howellsd84f4f92008-11-14 10:39:23 +11001221 * tracing check during an execve in the bprm_set_creds hook of
Linus Torvalds1da177e2005-04-16 15:20:36 -07001222 * binprm_security_ops if the process is being traced and its security
1223 * attributes would be changed by the execve.
David Howells5cd9c582008-08-14 11:37:28 +01001224 * @child contains the task_struct structure for the target process.
Stephen Smalley006ebb42008-05-19 08:32:49 -04001225 * @mode contains the PTRACE_MODE flags indicating the form of access.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226 * Return 0 if permission is granted.
David Howells5cd9c582008-08-14 11:37:28 +01001227 * @ptrace_traceme:
1228 * Check that the @parent process has sufficient permission to trace the
1229 * current process before allowing the current process to present itself
1230 * to the @parent process for tracing.
Ingo Molnar9e488582009-05-07 19:26:19 +10001231 * The parent process will still have to undergo the ptrace_access_check
David Howells5cd9c582008-08-14 11:37:28 +01001232 * checks before it is allowed to trace this one.
1233 * @parent contains the task_struct structure for debugger process.
1234 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 * @capget:
1236 * Get the @effective, @inheritable, and @permitted capability sets for
1237 * the @target process. The hook may also perform permission checking to
1238 * determine if the current process is allowed to see the capability sets
1239 * of the @target process.
1240 * @target contains the task_struct structure for target process.
1241 * @effective contains the effective capability set.
1242 * @inheritable contains the inheritable capability set.
1243 * @permitted contains the permitted capability set.
1244 * Return 0 if the capability sets were successfully obtained.
David Howellsd84f4f92008-11-14 10:39:23 +11001245 * @capset:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246 * Set the @effective, @inheritable, and @permitted capability sets for
David Howells1cdcbec2008-11-14 10:39:14 +11001247 * the current process.
David Howellsd84f4f92008-11-14 10:39:23 +11001248 * @new contains the new credentials structure for target process.
1249 * @old contains the current credentials structure for target process.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250 * @effective contains the effective capability set.
1251 * @inheritable contains the inheritable capability set.
1252 * @permitted contains the permitted capability set.
David Howellsd84f4f92008-11-14 10:39:23 +11001253 * Return 0 and update @new if permission is granted.
Chris Wright12b59892006-03-25 03:07:41 -08001254 * @capable:
David Howells3699c532009-01-06 22:27:01 +00001255 * Check whether the @tsk process has the @cap capability in the indicated
1256 * credentials.
Chris Wright12b59892006-03-25 03:07:41 -08001257 * @tsk contains the task_struct for the process.
David Howells3699c532009-01-06 22:27:01 +00001258 * @cred contains the credentials to use.
Chris Wright12b59892006-03-25 03:07:41 -08001259 * @cap contains the capability <include/linux/capability.h>.
David Howells3699c532009-01-06 22:27:01 +00001260 * @audit: Whether to write an audit message or not
Chris Wright12b59892006-03-25 03:07:41 -08001261 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262 * @sysctl:
1263 * Check permission before accessing the @table sysctl variable in the
1264 * manner specified by @op.
1265 * @table contains the ctl_table structure for the sysctl variable.
1266 * @op contains the operation (001 = search, 002 = write, 004 = read).
1267 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268 * @syslog:
1269 * Check permission before accessing the kernel message ring or changing
1270 * logging to the console.
Eric Paris7b41b172008-04-23 14:10:25 -04001271 * See the syslog(2) manual page for an explanation of the @type values.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 * @type contains the type of action.
Kees Cook00234592010-02-03 15:36:43 -08001273 * @from_file indicates the context of action (if it came from /proc).
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 * Return 0 if permission is granted.
1275 * @settime:
1276 * Check permission to change the system time.
1277 * struct timespec and timezone are defined in include/linux/time.h
1278 * @ts contains new time
1279 * @tz contains new timezone
1280 * Return 0 if permission is granted.
1281 * @vm_enough_memory:
1282 * Check permissions for allocating a new virtual mapping.
Alan Cox34b4e4a2007-08-22 14:01:28 -07001283 * @mm contains the mm struct it is being added to.
Eric Paris7b41b172008-04-23 14:10:25 -04001284 * @pages contains the number of pages.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285 * Return 0 if permission is granted.
1286 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001287 * @secid_to_secctx:
Eric Parisd5630b92010-10-13 16:24:48 -04001288 * Convert secid to security context. If secdata is NULL the length of
1289 * the result will be returned in seclen, but no secdata will be returned.
1290 * This does mean that the length could change between calls to check the
1291 * length and the next call which actually allocates and returns the secdata.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001292 * @secid contains the security ID.
1293 * @secdata contains the pointer that stores the converted security context.
Eric Parisd5630b92010-10-13 16:24:48 -04001294 * @seclen pointer which contains the length of the data
David Howells63cb3442008-01-15 23:47:35 +00001295 * @secctx_to_secid:
Eric Paris7b41b172008-04-23 14:10:25 -04001296 * Convert security context to secid.
1297 * @secid contains the pointer to the generated security ID.
1298 * @secdata contains the security context.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001299 *
1300 * @release_secctx:
1301 * Release the security context.
1302 * @secdata contains the security context.
1303 * @seclen contains the length of the security context.
1304 *
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001305 * Security hooks for Audit
1306 *
1307 * @audit_rule_init:
1308 * Allocate and initialize an LSM audit rule structure.
1309 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1310 * @op contains the operator the rule uses.
1311 * @rulestr contains the context where the rule will be applied to.
1312 * @lsmrule contains a pointer to receive the result.
1313 * Return 0 if @lsmrule has been successfully set,
1314 * -EINVAL in case of an invalid rule.
1315 *
1316 * @audit_rule_known:
1317 * Specifies whether given @rule contains any fields related to current LSM.
1318 * @rule contains the audit rule of interest.
1319 * Return 1 in case of relation found, 0 otherwise.
1320 *
1321 * @audit_rule_match:
1322 * Determine if given @secid matches a rule previously approved
1323 * by @audit_rule_known.
1324 * @secid contains the security id in question.
1325 * @field contains the field which relates to current LSM.
1326 * @op contains the operator that will be used for matching.
1327 * @rule points to the audit rule that will be checked against.
1328 * @actx points to the audit context associated with the check.
1329 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1330 *
1331 * @audit_rule_free:
1332 * Deallocate the LSM audit rule structure previously allocated by
1333 * audit_rule_init.
1334 * @rule contains the allocated rule
1335 *
David P. Quigley1ee65e32009-09-03 14:25:57 -04001336 * @inode_notifysecctx:
1337 * Notify the security module of what the security context of an inode
1338 * should be. Initializes the incore security context managed by the
1339 * security module for this inode. Example usage: NFS client invokes
1340 * this hook to initialize the security context in its incore inode to the
1341 * value provided by the server for the file when the server returned the
1342 * file's attributes to the client.
1343 *
1344 * Must be called with inode->i_mutex locked.
1345 *
1346 * @inode we wish to set the security context of.
1347 * @ctx contains the string which we wish to set in the inode.
1348 * @ctxlen contains the length of @ctx.
1349 *
1350 * @inode_setsecctx:
1351 * Change the security context of an inode. Updates the
1352 * incore security context managed by the security module and invokes the
1353 * fs code as needed (via __vfs_setxattr_noperm) to update any backing
1354 * xattrs that represent the context. Example usage: NFS server invokes
1355 * this hook to change the security context in its incore inode and on the
1356 * backing filesystem to a value provided by the client on a SETATTR
1357 * operation.
1358 *
1359 * Must be called with inode->i_mutex locked.
1360 *
1361 * @dentry contains the inode we wish to set the security context of.
1362 * @ctx contains the string which we wish to set in the inode.
1363 * @ctxlen contains the length of @ctx.
1364 *
1365 * @inode_getsecctx:
1366 * Returns a string containing all relavent security context information
1367 *
1368 * @inode we wish to set the security context of.
1369 * @ctx is a pointer in which to place the allocated security context.
1370 * @ctxlen points to the place to put the length of @ctx.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371 * This is the main security structure.
1372 */
1373struct security_operations {
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001374 char name[SECURITY_NAME_MAX + 1];
1375
Ingo Molnar9e488582009-05-07 19:26:19 +10001376 int (*ptrace_access_check) (struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001377 int (*ptrace_traceme) (struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -04001378 int (*capget) (struct task_struct *target,
1379 kernel_cap_t *effective,
1380 kernel_cap_t *inheritable, kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001381 int (*capset) (struct cred *new,
1382 const struct cred *old,
1383 const kernel_cap_t *effective,
1384 const kernel_cap_t *inheritable,
1385 const kernel_cap_t *permitted);
David Howells3699c532009-01-06 22:27:01 +00001386 int (*capable) (struct task_struct *tsk, const struct cred *cred,
1387 int cap, int audit);
Eric Paris7b41b172008-04-23 14:10:25 -04001388 int (*sysctl) (struct ctl_table *table, int op);
1389 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1390 int (*quota_on) (struct dentry *dentry);
Eric Paris12b30522010-11-15 18:36:29 -05001391 int (*syslog) (int type);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392 int (*settime) (struct timespec *ts, struct timezone *tz);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001393 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394
David Howellsa6f76f22008-11-14 10:39:24 +11001395 int (*bprm_set_creds) (struct linux_binprm *bprm);
Eric Paris7b41b172008-04-23 14:10:25 -04001396 int (*bprm_check_security) (struct linux_binprm *bprm);
1397 int (*bprm_secureexec) (struct linux_binprm *bprm);
David Howellsa6f76f22008-11-14 10:39:24 +11001398 void (*bprm_committing_creds) (struct linux_binprm *bprm);
1399 void (*bprm_committed_creds) (struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400
Eric Paris7b41b172008-04-23 14:10:25 -04001401 int (*sb_alloc_security) (struct super_block *sb);
1402 void (*sb_free_security) (struct super_block *sb);
1403 int (*sb_copy_data) (char *orig, char *copy);
James Morris12204e22008-12-19 10:44:42 +11001404 int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001405 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
David Howells726c3342006-06-23 02:02:58 -07001406 int (*sb_statfs) (struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001407 int (*sb_mount) (char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408 char *type, unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001409 int (*sb_umount) (struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001410 int (*sb_pivotroot) (struct path *old_path,
1411 struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001412 int (*sb_set_mnt_opts) (struct super_block *sb,
1413 struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001414 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1415 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001416 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001418#ifdef CONFIG_SECURITY_PATH
1419 int (*path_unlink) (struct path *dir, struct dentry *dentry);
1420 int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode);
1421 int (*path_rmdir) (struct path *dir, struct dentry *dentry);
1422 int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode,
1423 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09001424 int (*path_truncate) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001425 int (*path_symlink) (struct path *dir, struct dentry *dentry,
1426 const char *old_name);
1427 int (*path_link) (struct dentry *old_dentry, struct path *new_dir,
1428 struct dentry *new_dentry);
1429 int (*path_rename) (struct path *old_dir, struct dentry *old_dentry,
1430 struct path *new_dir, struct dentry *new_dentry);
Tetsuo Handa89eda062009-10-04 21:49:47 +09001431 int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt,
1432 mode_t mode);
1433 int (*path_chown) (struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09001434 int (*path_chroot) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001435#endif
1436
Eric Paris7b41b172008-04-23 14:10:25 -04001437 int (*inode_alloc_security) (struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001439 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1440 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441 int (*inode_create) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001442 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 int (*inode_link) (struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001444 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1446 int (*inode_symlink) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001447 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1450 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001451 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001452 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001453 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454 int (*inode_readlink) (struct dentry *dentry);
1455 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001456 int (*inode_permission) (struct inode *inode, int mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1458 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001459 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1460 const void *value, size_t size, int flags);
1461 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1462 const void *value, size_t size, int flags);
1463 int (*inode_getxattr) (struct dentry *dentry, const char *name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464 int (*inode_listxattr) (struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001465 int (*inode_removexattr) (struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001466 int (*inode_need_killpriv) (struct dentry *dentry);
1467 int (*inode_killpriv) (struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001468 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1469 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1470 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1471 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472
Eric Paris7b41b172008-04-23 14:10:25 -04001473 int (*file_permission) (struct file *file, int mask);
1474 int (*file_alloc_security) (struct file *file);
1475 void (*file_free_security) (struct file *file);
1476 int (*file_ioctl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001478 int (*file_mmap) (struct file *file,
Eric Parised032182007-06-28 15:55:21 -04001479 unsigned long reqprot, unsigned long prot,
1480 unsigned long flags, unsigned long addr,
1481 unsigned long addr_only);
Eric Paris7b41b172008-04-23 14:10:25 -04001482 int (*file_mprotect) (struct vm_area_struct *vma,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483 unsigned long reqprot,
1484 unsigned long prot);
Eric Paris7b41b172008-04-23 14:10:25 -04001485 int (*file_lock) (struct file *file, unsigned int cmd);
1486 int (*file_fcntl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001488 int (*file_set_fowner) (struct file *file);
1489 int (*file_send_sigiotask) (struct task_struct *tsk,
1490 struct fown_struct *fown, int sig);
1491 int (*file_receive) (struct file *file);
David Howells745ca242008-11-14 10:39:22 +11001492 int (*dentry_open) (struct file *file, const struct cred *cred);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493
1494 int (*task_create) (unsigned long clone_flags);
David Howellsee18d642009-09-02 09:14:21 +01001495 int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001496 void (*cred_free) (struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001497 int (*cred_prepare)(struct cred *new, const struct cred *old,
1498 gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001499 void (*cred_transfer)(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001500 int (*kernel_act_as)(struct cred *new, u32 secid);
1501 int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001502 int (*kernel_module_request)(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001503 int (*task_fix_setuid) (struct cred *new, const struct cred *old,
1504 int flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001505 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1506 int (*task_getpgid) (struct task_struct *p);
1507 int (*task_getsid) (struct task_struct *p);
1508 void (*task_getsecid) (struct task_struct *p, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001509 int (*task_setnice) (struct task_struct *p, int nice);
1510 int (*task_setioprio) (struct task_struct *p, int ioprio);
1511 int (*task_getioprio) (struct task_struct *p);
Jiri Slaby8fd00b42009-08-26 18:41:16 +02001512 int (*task_setrlimit) (struct task_struct *p, unsigned int resource,
1513 struct rlimit *new_rlim);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09001514 int (*task_setscheduler) (struct task_struct *p);
Eric Paris7b41b172008-04-23 14:10:25 -04001515 int (*task_getscheduler) (struct task_struct *p);
1516 int (*task_movememory) (struct task_struct *p);
1517 int (*task_kill) (struct task_struct *p,
1518 struct siginfo *info, int sig, u32 secid);
1519 int (*task_wait) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520 int (*task_prctl) (int option, unsigned long arg2,
1521 unsigned long arg3, unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11001522 unsigned long arg5);
Eric Paris7b41b172008-04-23 14:10:25 -04001523 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001524
Eric Paris7b41b172008-04-23 14:10:25 -04001525 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001526 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527
Eric Paris7b41b172008-04-23 14:10:25 -04001528 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1529 void (*msg_msg_free_security) (struct msg_msg *msg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530
Eric Paris7b41b172008-04-23 14:10:25 -04001531 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1532 void (*msg_queue_free_security) (struct msg_queue *msq);
1533 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1534 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1535 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1536 struct msg_msg *msg, int msqflg);
1537 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1538 struct msg_msg *msg,
1539 struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540 long type, int mode);
1541
Eric Paris7b41b172008-04-23 14:10:25 -04001542 int (*shm_alloc_security) (struct shmid_kernel *shp);
1543 void (*shm_free_security) (struct shmid_kernel *shp);
1544 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1545 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1546 int (*shm_shmat) (struct shmid_kernel *shp,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001547 char __user *shmaddr, int shmflg);
1548
Eric Paris7b41b172008-04-23 14:10:25 -04001549 int (*sem_alloc_security) (struct sem_array *sma);
1550 void (*sem_free_security) (struct sem_array *sma);
1551 int (*sem_associate) (struct sem_array *sma, int semflg);
1552 int (*sem_semctl) (struct sem_array *sma, int cmd);
1553 int (*sem_semop) (struct sem_array *sma,
1554 struct sembuf *sops, unsigned nsops, int alter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001555
Eric Paris7b41b172008-04-23 14:10:25 -04001556 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1557 int (*netlink_recv) (struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001558
Linus Torvalds1da177e2005-04-16 15:20:36 -07001559 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1560
Eric Paris7b41b172008-04-23 14:10:25 -04001561 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1562 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1563 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001564 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001565 void (*release_secctx) (char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566
David P. Quigley1ee65e32009-09-03 14:25:57 -04001567 int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen);
1568 int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen);
1569 int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen);
1570
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -08001572 int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk);
Eric Paris7b41b172008-04-23 14:10:25 -04001573 int (*unix_may_send) (struct socket *sock, struct socket *other);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001574
1575 int (*socket_create) (int family, int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001576 int (*socket_post_create) (struct socket *sock, int family,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001577 int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001578 int (*socket_bind) (struct socket *sock,
1579 struct sockaddr *address, int addrlen);
1580 int (*socket_connect) (struct socket *sock,
1581 struct sockaddr *address, int addrlen);
1582 int (*socket_listen) (struct socket *sock, int backlog);
1583 int (*socket_accept) (struct socket *sock, struct socket *newsock);
Eric Paris7b41b172008-04-23 14:10:25 -04001584 int (*socket_sendmsg) (struct socket *sock,
1585 struct msghdr *msg, int size);
1586 int (*socket_recvmsg) (struct socket *sock,
1587 struct msghdr *msg, int size, int flags);
1588 int (*socket_getsockname) (struct socket *sock);
1589 int (*socket_getpeername) (struct socket *sock);
1590 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1591 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1592 int (*socket_shutdown) (struct socket *sock, int how);
1593 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001594 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001595 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001596 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001598 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001599 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001600 void (*sock_graft) (struct sock *sk, struct socket *parent);
1601 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1602 struct request_sock *req);
1603 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1604 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
Eric Paris2606fd12010-10-13 16:24:41 -04001605 int (*secmark_relabel_packet) (u32 secid);
1606 void (*secmark_refcount_inc) (void);
1607 void (*secmark_refcount_dec) (void);
Eric Paris7b41b172008-04-23 14:10:25 -04001608 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
Paul Moore2b980db2009-08-28 18:12:43 -04001609 int (*tun_dev_create)(void);
1610 void (*tun_dev_post_create)(struct sock *sk);
1611 int (*tun_dev_attach)(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001612#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001613
Trent Jaegerdf718372005-12-13 23:12:27 -08001614#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moore03e1ad72008-04-12 19:07:52 -07001615 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001616 struct xfrm_user_sec_ctx *sec_ctx);
Paul Moore03e1ad72008-04-12 19:07:52 -07001617 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1618 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1619 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001620 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001621 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001622 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001623 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001624 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Eric Paris7b41b172008-04-23 14:10:25 -04001625 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1626 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1627 struct xfrm_policy *xp,
1628 struct flowi *fl);
1629 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001630#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1631
David Howells29db9192005-10-30 15:02:44 -08001632 /* key management security hooks */
1633#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +11001634 int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001635 void (*key_free) (struct key *key);
1636 int (*key_permission) (key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11001637 const struct cred *cred,
Eric Paris7b41b172008-04-23 14:10:25 -04001638 key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07001639 int (*key_getsecurity)(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08001640#endif /* CONFIG_KEYS */
1641
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001642#ifdef CONFIG_AUDIT
Eric Paris7b41b172008-04-23 14:10:25 -04001643 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1644 int (*audit_rule_known) (struct audit_krule *krule);
1645 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1646 struct audit_context *actx);
1647 void (*audit_rule_free) (void *lsmrule);
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001648#endif /* CONFIG_AUDIT */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001649};
1650
Linus Torvalds1da177e2005-04-16 15:20:36 -07001651/* prototypes */
Eric Paris7b41b172008-04-23 14:10:25 -04001652extern int security_init(void);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001653extern int security_module_enable(struct security_operations *ops);
Eric Paris7b41b172008-04-23 14:10:25 -04001654extern int register_security(struct security_operations *ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001655
James Morris20510f22007-10-16 23:31:32 -07001656/* Security operations */
Ingo Molnar9e488582009-05-07 19:26:19 +10001657int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001658int security_ptrace_traceme(struct task_struct *parent);
James Morris20510f22007-10-16 23:31:32 -07001659int security_capget(struct task_struct *target,
Eric Paris7b41b172008-04-23 14:10:25 -04001660 kernel_cap_t *effective,
1661 kernel_cap_t *inheritable,
1662 kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001663int security_capset(struct cred *new, const struct cred *old,
1664 const kernel_cap_t *effective,
1665 const kernel_cap_t *inheritable,
1666 const kernel_cap_t *permitted);
David Howells3699c532009-01-06 22:27:01 +00001667int security_capable(int cap);
1668int security_real_capable(struct task_struct *tsk, int cap);
1669int security_real_capable_noaudit(struct task_struct *tsk, int cap);
James Morris20510f22007-10-16 23:31:32 -07001670int security_sysctl(struct ctl_table *table, int op);
1671int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1672int security_quota_on(struct dentry *dentry);
Eric Paris12b30522010-11-15 18:36:29 -05001673int security_syslog(int type);
James Morris20510f22007-10-16 23:31:32 -07001674int security_settime(struct timespec *ts, struct timezone *tz);
1675int security_vm_enough_memory(long pages);
1676int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
Alan Cox731572d2008-10-29 14:01:20 -07001677int security_vm_enough_memory_kern(long pages);
David Howellsa6f76f22008-11-14 10:39:24 +11001678int security_bprm_set_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001679int security_bprm_check(struct linux_binprm *bprm);
David Howellsa6f76f22008-11-14 10:39:24 +11001680void security_bprm_committing_creds(struct linux_binprm *bprm);
1681void security_bprm_committed_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001682int security_bprm_secureexec(struct linux_binprm *bprm);
1683int security_sb_alloc(struct super_block *sb);
1684void security_sb_free(struct super_block *sb);
Eric Parise0007522008-03-05 10:31:54 -05001685int security_sb_copy_data(char *orig, char *copy);
James Morris12204e22008-12-19 10:44:42 +11001686int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001687int security_sb_show_options(struct seq_file *m, struct super_block *sb);
James Morris20510f22007-10-16 23:31:32 -07001688int security_sb_statfs(struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001689int security_sb_mount(char *dev_name, struct path *path,
Eric Paris7b41b172008-04-23 14:10:25 -04001690 char *type, unsigned long flags, void *data);
James Morris20510f22007-10-16 23:31:32 -07001691int security_sb_umount(struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001692int security_sb_pivotroot(struct path *old_path, struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001693int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001694void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1695 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001696int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001697
James Morris20510f22007-10-16 23:31:32 -07001698int security_inode_alloc(struct inode *inode);
1699void security_inode_free(struct inode *inode);
1700int security_inode_init_security(struct inode *inode, struct inode *dir,
1701 char **name, void **value, size_t *len);
1702int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1703int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1704 struct dentry *new_dentry);
1705int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1706int security_inode_symlink(struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001707 const char *old_name);
James Morris20510f22007-10-16 23:31:32 -07001708int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1709int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1710int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1711int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001712 struct inode *new_dir, struct dentry *new_dentry);
James Morris20510f22007-10-16 23:31:32 -07001713int security_inode_readlink(struct dentry *dentry);
1714int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001715int security_inode_permission(struct inode *inode, int mask);
James Morris20510f22007-10-16 23:31:32 -07001716int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1717int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001718int security_inode_setxattr(struct dentry *dentry, const char *name,
1719 const void *value, size_t size, int flags);
1720void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1721 const void *value, size_t size, int flags);
1722int security_inode_getxattr(struct dentry *dentry, const char *name);
James Morris20510f22007-10-16 23:31:32 -07001723int security_inode_listxattr(struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001724int security_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001725int security_inode_need_killpriv(struct dentry *dentry);
1726int security_inode_killpriv(struct dentry *dentry);
David P. Quigley42492592008-02-04 22:29:39 -08001727int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
James Morris20510f22007-10-16 23:31:32 -07001728int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1729int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001730void security_inode_getsecid(const struct inode *inode, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001731int security_file_permission(struct file *file, int mask);
1732int security_file_alloc(struct file *file);
1733void security_file_free(struct file *file);
1734int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1735int security_file_mmap(struct file *file, unsigned long reqprot,
1736 unsigned long prot, unsigned long flags,
1737 unsigned long addr, unsigned long addr_only);
1738int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
Eric Paris7b41b172008-04-23 14:10:25 -04001739 unsigned long prot);
James Morris20510f22007-10-16 23:31:32 -07001740int security_file_lock(struct file *file, unsigned int cmd);
1741int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1742int security_file_set_fowner(struct file *file);
1743int security_file_send_sigiotask(struct task_struct *tsk,
Eric Paris7b41b172008-04-23 14:10:25 -04001744 struct fown_struct *fown, int sig);
James Morris20510f22007-10-16 23:31:32 -07001745int security_file_receive(struct file *file);
David Howells745ca242008-11-14 10:39:22 +11001746int security_dentry_open(struct file *file, const struct cred *cred);
James Morris20510f22007-10-16 23:31:32 -07001747int security_task_create(unsigned long clone_flags);
David Howellsee18d642009-09-02 09:14:21 +01001748int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001749void security_cred_free(struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001750int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001751void security_transfer_creds(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001752int security_kernel_act_as(struct cred *new, u32 secid);
1753int security_kernel_create_files_as(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001754int security_kernel_module_request(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001755int security_task_fix_setuid(struct cred *new, const struct cred *old,
1756 int flags);
James Morris20510f22007-10-16 23:31:32 -07001757int security_task_setpgid(struct task_struct *p, pid_t pgid);
1758int security_task_getpgid(struct task_struct *p);
1759int security_task_getsid(struct task_struct *p);
1760void security_task_getsecid(struct task_struct *p, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001761int security_task_setnice(struct task_struct *p, int nice);
1762int security_task_setioprio(struct task_struct *p, int ioprio);
1763int security_task_getioprio(struct task_struct *p);
Jiri Slaby8fd00b42009-08-26 18:41:16 +02001764int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1765 struct rlimit *new_rlim);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09001766int security_task_setscheduler(struct task_struct *p);
James Morris20510f22007-10-16 23:31:32 -07001767int security_task_getscheduler(struct task_struct *p);
1768int security_task_movememory(struct task_struct *p);
1769int security_task_kill(struct task_struct *p, struct siginfo *info,
1770 int sig, u32 secid);
1771int security_task_wait(struct task_struct *p);
1772int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +11001773 unsigned long arg4, unsigned long arg5);
James Morris20510f22007-10-16 23:31:32 -07001774void security_task_to_inode(struct task_struct *p, struct inode *inode);
1775int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001776void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001777int security_msg_msg_alloc(struct msg_msg *msg);
1778void security_msg_msg_free(struct msg_msg *msg);
1779int security_msg_queue_alloc(struct msg_queue *msq);
1780void security_msg_queue_free(struct msg_queue *msq);
1781int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1782int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1783int security_msg_queue_msgsnd(struct msg_queue *msq,
Eric Paris7b41b172008-04-23 14:10:25 -04001784 struct msg_msg *msg, int msqflg);
James Morris20510f22007-10-16 23:31:32 -07001785int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
Eric Paris7b41b172008-04-23 14:10:25 -04001786 struct task_struct *target, long type, int mode);
James Morris20510f22007-10-16 23:31:32 -07001787int security_shm_alloc(struct shmid_kernel *shp);
1788void security_shm_free(struct shmid_kernel *shp);
1789int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1790int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1791int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1792int security_sem_alloc(struct sem_array *sma);
1793void security_sem_free(struct sem_array *sma);
1794int security_sem_associate(struct sem_array *sma, int semflg);
1795int security_sem_semctl(struct sem_array *sma, int cmd);
1796int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1797 unsigned nsops, int alter);
Eric Paris7b41b172008-04-23 14:10:25 -04001798void security_d_instantiate(struct dentry *dentry, struct inode *inode);
James Morris20510f22007-10-16 23:31:32 -07001799int security_getprocattr(struct task_struct *p, char *name, char **value);
1800int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1801int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1802int security_netlink_recv(struct sk_buff *skb, int cap);
1803int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001804int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001805void security_release_secctx(char *secdata, u32 seclen);
1806
David P. Quigley1ee65e32009-09-03 14:25:57 -04001807int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
1808int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
1809int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810#else /* CONFIG_SECURITY */
Eric Parise0007522008-03-05 10:31:54 -05001811struct security_mnt_opts {
1812};
1813
1814static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1815{
1816}
1817
1818static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1819{
1820}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001821
1822/*
1823 * This is the default capabilities functionality. Most of these functions
1824 * are just stubbed out, but a few must call the proper capable code.
1825 */
1826
1827static inline int security_init(void)
1828{
1829 return 0;
1830}
1831
Ingo Molnar9e488582009-05-07 19:26:19 +10001832static inline int security_ptrace_access_check(struct task_struct *child,
David Howells5cd9c582008-08-14 11:37:28 +01001833 unsigned int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834{
Ingo Molnar9e488582009-05-07 19:26:19 +10001835 return cap_ptrace_access_check(child, mode);
David Howells5cd9c582008-08-14 11:37:28 +01001836}
1837
Alexander Beregalov5e186b52008-08-17 05:34:20 +04001838static inline int security_ptrace_traceme(struct task_struct *parent)
David Howells5cd9c582008-08-14 11:37:28 +01001839{
1840 return cap_ptrace_traceme(parent);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001841}
1842
Eric Paris7b41b172008-04-23 14:10:25 -04001843static inline int security_capget(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844 kernel_cap_t *effective,
1845 kernel_cap_t *inheritable,
1846 kernel_cap_t *permitted)
1847{
Eric Paris7b41b172008-04-23 14:10:25 -04001848 return cap_capget(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849}
1850
David Howellsd84f4f92008-11-14 10:39:23 +11001851static inline int security_capset(struct cred *new,
1852 const struct cred *old,
1853 const kernel_cap_t *effective,
1854 const kernel_cap_t *inheritable,
1855 const kernel_cap_t *permitted)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856{
David Howellsd84f4f92008-11-14 10:39:23 +11001857 return cap_capset(new, old, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858}
1859
David Howells3699c532009-01-06 22:27:01 +00001860static inline int security_capable(int cap)
Chris Wright12b59892006-03-25 03:07:41 -08001861{
David Howells3699c532009-01-06 22:27:01 +00001862 return cap_capable(current, current_cred(), cap, SECURITY_CAP_AUDIT);
Eric Paris06112162008-11-11 22:02:50 +11001863}
1864
David Howells3699c532009-01-06 22:27:01 +00001865static inline int security_real_capable(struct task_struct *tsk, int cap)
Eric Paris06112162008-11-11 22:02:50 +11001866{
David Howells3699c532009-01-06 22:27:01 +00001867 int ret;
1868
1869 rcu_read_lock();
1870 ret = cap_capable(tsk, __task_cred(tsk), cap, SECURITY_CAP_AUDIT);
1871 rcu_read_unlock();
1872 return ret;
1873}
1874
1875static inline
1876int security_real_capable_noaudit(struct task_struct *tsk, int cap)
1877{
1878 int ret;
1879
1880 rcu_read_lock();
1881 ret = cap_capable(tsk, __task_cred(tsk), cap,
1882 SECURITY_CAP_NOAUDIT);
1883 rcu_read_unlock();
1884 return ret;
Chris Wright12b59892006-03-25 03:07:41 -08001885}
1886
Linus Torvalds1da177e2005-04-16 15:20:36 -07001887static inline int security_sysctl(struct ctl_table *table, int op)
1888{
1889 return 0;
1890}
1891
Eric Paris7b41b172008-04-23 14:10:25 -04001892static inline int security_quotactl(int cmds, int type, int id,
1893 struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001894{
1895 return 0;
1896}
1897
Eric Paris7b41b172008-04-23 14:10:25 -04001898static inline int security_quota_on(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899{
1900 return 0;
1901}
1902
Eric Paris12b30522010-11-15 18:36:29 -05001903static inline int security_syslog(int type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001904{
Eric Paris12b30522010-11-15 18:36:29 -05001905 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906}
1907
1908static inline int security_settime(struct timespec *ts, struct timezone *tz)
1909{
1910 return cap_settime(ts, tz);
1911}
1912
1913static inline int security_vm_enough_memory(long pages)
1914{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001915 WARN_ON(current->mm == NULL);
Alan Cox731572d2008-10-29 14:01:20 -07001916 return cap_vm_enough_memory(current->mm, pages);
1917}
1918
Alan Cox34b4e4a2007-08-22 14:01:28 -07001919static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1920{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001921 WARN_ON(mm == NULL);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001922 return cap_vm_enough_memory(mm, pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001923}
1924
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001925static inline int security_vm_enough_memory_kern(long pages)
1926{
1927 /* If current->mm is a kernel thread then we will pass NULL,
1928 for this specific case that is fine */
1929 return cap_vm_enough_memory(current->mm, pages);
1930}
1931
David Howellsa6f76f22008-11-14 10:39:24 +11001932static inline int security_bprm_set_creds(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001933{
David Howellsa6f76f22008-11-14 10:39:24 +11001934 return cap_bprm_set_creds(bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001935}
1936
Eric Paris7b41b172008-04-23 14:10:25 -04001937static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001938{
1939 return 0;
1940}
1941
David Howellsa6f76f22008-11-14 10:39:24 +11001942static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
1943{
1944}
1945
1946static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
1947{
1948}
1949
Eric Paris7b41b172008-04-23 14:10:25 -04001950static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001951{
1952 return cap_bprm_secureexec(bprm);
1953}
1954
Eric Paris7b41b172008-04-23 14:10:25 -04001955static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001956{
1957 return 0;
1958}
1959
Eric Paris7b41b172008-04-23 14:10:25 -04001960static inline void security_sb_free(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961{ }
1962
Eric Paris7b41b172008-04-23 14:10:25 -04001963static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001964{
1965 return 0;
1966}
1967
James Morris12204e22008-12-19 10:44:42 +11001968static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969{
1970 return 0;
1971}
1972
Eric Paris2069f452008-07-04 09:47:13 +10001973static inline int security_sb_show_options(struct seq_file *m,
1974 struct super_block *sb)
1975{
1976 return 0;
1977}
1978
Eric Paris7b41b172008-04-23 14:10:25 -04001979static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001980{
1981 return 0;
1982}
1983
Eric Paris7b41b172008-04-23 14:10:25 -04001984static inline int security_sb_mount(char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001985 char *type, unsigned long flags,
1986 void *data)
1987{
1988 return 0;
1989}
1990
Eric Paris7b41b172008-04-23 14:10:25 -04001991static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992{
1993 return 0;
1994}
1995
Eric Paris7b41b172008-04-23 14:10:25 -04001996static inline int security_sb_pivotroot(struct path *old_path,
1997 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001998{
1999 return 0;
2000}
2001
Eric Parise0007522008-03-05 10:31:54 -05002002static inline int security_sb_set_mnt_opts(struct super_block *sb,
2003 struct security_mnt_opts *opts)
2004{
2005 return 0;
2006}
2007
2008static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
2009 struct super_block *newsb)
2010{ }
2011
2012static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
2013{
2014 return 0;
2015}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002016
Eric Paris7b41b172008-04-23 14:10:25 -04002017static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002018{
2019 return 0;
2020}
2021
Eric Paris7b41b172008-04-23 14:10:25 -04002022static inline void security_inode_free(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002024
Eric Paris7b41b172008-04-23 14:10:25 -04002025static inline int security_inode_init_security(struct inode *inode,
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002026 struct inode *dir,
2027 char **name,
2028 void **value,
2029 size_t *len)
2030{
2031 return -EOPNOTSUPP;
2032}
Eric Paris7b41b172008-04-23 14:10:25 -04002033
2034static inline int security_inode_create(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035 struct dentry *dentry,
2036 int mode)
2037{
2038 return 0;
2039}
2040
Eric Paris7b41b172008-04-23 14:10:25 -04002041static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042 struct inode *dir,
2043 struct dentry *new_dentry)
2044{
2045 return 0;
2046}
2047
Eric Paris7b41b172008-04-23 14:10:25 -04002048static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002049 struct dentry *dentry)
2050{
2051 return 0;
2052}
2053
Eric Paris7b41b172008-04-23 14:10:25 -04002054static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055 struct dentry *dentry,
2056 const char *old_name)
2057{
2058 return 0;
2059}
2060
Eric Paris7b41b172008-04-23 14:10:25 -04002061static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062 struct dentry *dentry,
2063 int mode)
2064{
2065 return 0;
2066}
2067
Eric Paris7b41b172008-04-23 14:10:25 -04002068static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069 struct dentry *dentry)
2070{
2071 return 0;
2072}
2073
Eric Paris7b41b172008-04-23 14:10:25 -04002074static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075 struct dentry *dentry,
2076 int mode, dev_t dev)
2077{
2078 return 0;
2079}
2080
Eric Paris7b41b172008-04-23 14:10:25 -04002081static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002082 struct dentry *old_dentry,
2083 struct inode *new_dir,
2084 struct dentry *new_dentry)
2085{
2086 return 0;
2087}
2088
Eric Paris7b41b172008-04-23 14:10:25 -04002089static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090{
2091 return 0;
2092}
2093
Eric Paris7b41b172008-04-23 14:10:25 -04002094static inline int security_inode_follow_link(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095 struct nameidata *nd)
2096{
2097 return 0;
2098}
2099
Al Virob77b0642008-07-17 09:37:02 -04002100static inline int security_inode_permission(struct inode *inode, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002101{
2102 return 0;
2103}
2104
Eric Paris7b41b172008-04-23 14:10:25 -04002105static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106 struct iattr *attr)
2107{
2108 return 0;
2109}
2110
Eric Paris7b41b172008-04-23 14:10:25 -04002111static inline int security_inode_getattr(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112 struct dentry *dentry)
2113{
2114 return 0;
2115}
2116
David Howells8f0cfa52008-04-29 00:59:41 -07002117static inline int security_inode_setxattr(struct dentry *dentry,
2118 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002119{
2120 return cap_inode_setxattr(dentry, name, value, size, flags);
2121}
2122
David Howells8f0cfa52008-04-29 00:59:41 -07002123static inline void security_inode_post_setxattr(struct dentry *dentry,
2124 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002125{ }
2126
David Howells8f0cfa52008-04-29 00:59:41 -07002127static inline int security_inode_getxattr(struct dentry *dentry,
2128 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002129{
2130 return 0;
2131}
2132
Eric Paris7b41b172008-04-23 14:10:25 -04002133static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002134{
2135 return 0;
2136}
2137
David Howells8f0cfa52008-04-29 00:59:41 -07002138static inline int security_inode_removexattr(struct dentry *dentry,
2139 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140{
2141 return cap_inode_removexattr(dentry, name);
2142}
2143
Serge E. Hallynb5376772007-10-16 23:31:36 -07002144static inline int security_inode_need_killpriv(struct dentry *dentry)
2145{
2146 return cap_inode_need_killpriv(dentry);
2147}
2148
2149static inline int security_inode_killpriv(struct dentry *dentry)
2150{
2151 return cap_inode_killpriv(dentry);
2152}
2153
David P. Quigley42492592008-02-04 22:29:39 -08002154static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155{
2156 return -EOPNOTSUPP;
2157}
2158
2159static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2160{
2161 return -EOPNOTSUPP;
2162}
2163
2164static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2165{
2166 return 0;
2167}
2168
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002169static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2170{
2171 *secid = 0;
2172}
2173
Eric Paris7b41b172008-04-23 14:10:25 -04002174static inline int security_file_permission(struct file *file, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175{
2176 return 0;
2177}
2178
Eric Paris7b41b172008-04-23 14:10:25 -04002179static inline int security_file_alloc(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002180{
2181 return 0;
2182}
2183
Eric Paris7b41b172008-04-23 14:10:25 -04002184static inline void security_file_free(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185{ }
2186
Eric Paris7b41b172008-04-23 14:10:25 -04002187static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2188 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002189{
2190 return 0;
2191}
2192
Eric Paris7b41b172008-04-23 14:10:25 -04002193static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2194 unsigned long prot,
2195 unsigned long flags,
2196 unsigned long addr,
2197 unsigned long addr_only)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002198{
Eric Paris7c738752009-07-31 12:53:58 -04002199 return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200}
2201
Eric Paris7b41b172008-04-23 14:10:25 -04002202static inline int security_file_mprotect(struct vm_area_struct *vma,
2203 unsigned long reqprot,
2204 unsigned long prot)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205{
2206 return 0;
2207}
2208
Eric Paris7b41b172008-04-23 14:10:25 -04002209static inline int security_file_lock(struct file *file, unsigned int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002210{
2211 return 0;
2212}
2213
Eric Paris7b41b172008-04-23 14:10:25 -04002214static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2215 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002216{
2217 return 0;
2218}
2219
Eric Paris7b41b172008-04-23 14:10:25 -04002220static inline int security_file_set_fowner(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002221{
2222 return 0;
2223}
2224
Eric Paris7b41b172008-04-23 14:10:25 -04002225static inline int security_file_send_sigiotask(struct task_struct *tsk,
2226 struct fown_struct *fown,
2227 int sig)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228{
2229 return 0;
2230}
2231
Eric Paris7b41b172008-04-23 14:10:25 -04002232static inline int security_file_receive(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233{
2234 return 0;
2235}
2236
David Howells745ca242008-11-14 10:39:22 +11002237static inline int security_dentry_open(struct file *file,
2238 const struct cred *cred)
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +09002239{
2240 return 0;
2241}
2242
Eric Paris7b41b172008-04-23 14:10:25 -04002243static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244{
2245 return 0;
2246}
2247
David Howells945af7c2009-09-04 09:19:48 +01002248static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
2249{
2250 return 0;
2251}
David Howellsee18d642009-09-02 09:14:21 +01002252
David Howellsd84f4f92008-11-14 10:39:23 +11002253static inline void security_cred_free(struct cred *cred)
2254{ }
2255
2256static inline int security_prepare_creds(struct cred *new,
2257 const struct cred *old,
2258 gfp_t gfp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002259{
2260 return 0;
2261}
2262
David Howellsee18d642009-09-02 09:14:21 +01002263static inline void security_transfer_creds(struct cred *new,
2264 const struct cred *old)
2265{
2266}
2267
David Howells3a3b7ce2008-11-14 10:39:28 +11002268static inline int security_kernel_act_as(struct cred *cred, u32 secid)
2269{
2270 return 0;
2271}
2272
2273static inline int security_kernel_create_files_as(struct cred *cred,
2274 struct inode *inode)
2275{
2276 return 0;
2277}
2278
Eric Parisdd8dbf22009-11-03 16:35:32 +11002279static inline int security_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -04002280{
2281 return 0;
2282}
2283
David Howellsd84f4f92008-11-14 10:39:23 +11002284static inline int security_task_fix_setuid(struct cred *new,
2285 const struct cred *old,
2286 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287{
David Howellsd84f4f92008-11-14 10:39:23 +11002288 return cap_task_fix_setuid(new, old, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002289}
2290
Eric Paris7b41b172008-04-23 14:10:25 -04002291static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002292{
2293 return 0;
2294}
2295
Eric Paris7b41b172008-04-23 14:10:25 -04002296static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002297{
2298 return 0;
2299}
2300
Eric Paris7b41b172008-04-23 14:10:25 -04002301static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002302{
2303 return 0;
2304}
2305
Eric Paris7b41b172008-04-23 14:10:25 -04002306static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002307{
2308 *secid = 0;
2309}
David Quigleyf9008e42006-06-30 01:55:46 -07002310
Eric Paris7b41b172008-04-23 14:10:25 -04002311static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002312{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002313 return cap_task_setnice(p, nice);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002314}
2315
Eric Paris7b41b172008-04-23 14:10:25 -04002316static inline int security_task_setioprio(struct task_struct *p, int ioprio)
James Morris03e68062006-06-23 02:03:58 -07002317{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002318 return cap_task_setioprio(p, ioprio);
James Morris03e68062006-06-23 02:03:58 -07002319}
2320
Eric Paris7b41b172008-04-23 14:10:25 -04002321static inline int security_task_getioprio(struct task_struct *p)
David Quigleya1836a42006-06-30 01:55:49 -07002322{
2323 return 0;
2324}
2325
Jiri Slaby8fd00b42009-08-26 18:41:16 +02002326static inline int security_task_setrlimit(struct task_struct *p,
2327 unsigned int resource,
Eric Paris7b41b172008-04-23 14:10:25 -04002328 struct rlimit *new_rlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002329{
2330 return 0;
2331}
2332
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09002333static inline int security_task_setscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002334{
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09002335 return cap_task_setscheduler(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002336}
2337
Eric Paris7b41b172008-04-23 14:10:25 -04002338static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002339{
2340 return 0;
2341}
2342
Eric Paris7b41b172008-04-23 14:10:25 -04002343static inline int security_task_movememory(struct task_struct *p)
David Quigley35601542006-06-23 02:04:01 -07002344{
2345 return 0;
2346}
2347
Eric Paris7b41b172008-04-23 14:10:25 -04002348static inline int security_task_kill(struct task_struct *p,
2349 struct siginfo *info, int sig,
2350 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002351{
Serge Hallynaedb60a2008-02-29 15:14:57 +00002352 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002353}
2354
Eric Paris7b41b172008-04-23 14:10:25 -04002355static inline int security_task_wait(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002356{
2357 return 0;
2358}
2359
Eric Paris7b41b172008-04-23 14:10:25 -04002360static inline int security_task_prctl(int option, unsigned long arg2,
2361 unsigned long arg3,
2362 unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11002363 unsigned long arg5)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002364{
David Howellsd84f4f92008-11-14 10:39:23 +11002365 return cap_task_prctl(option, arg2, arg3, arg3, arg5);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002366}
2367
2368static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2369{ }
2370
Eric Paris7b41b172008-04-23 14:10:25 -04002371static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2372 short flag)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002373{
2374 return 0;
2375}
2376
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002377static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2378{
2379 *secid = 0;
2380}
2381
Eric Paris7b41b172008-04-23 14:10:25 -04002382static inline int security_msg_msg_alloc(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002383{
2384 return 0;
2385}
2386
Eric Paris7b41b172008-04-23 14:10:25 -04002387static inline void security_msg_msg_free(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002388{ }
2389
Eric Paris7b41b172008-04-23 14:10:25 -04002390static inline int security_msg_queue_alloc(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002391{
2392 return 0;
2393}
2394
Eric Paris7b41b172008-04-23 14:10:25 -04002395static inline void security_msg_queue_free(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002396{ }
2397
Eric Paris7b41b172008-04-23 14:10:25 -04002398static inline int security_msg_queue_associate(struct msg_queue *msq,
2399 int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002400{
2401 return 0;
2402}
2403
Eric Paris7b41b172008-04-23 14:10:25 -04002404static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002405{
2406 return 0;
2407}
2408
Eric Paris7b41b172008-04-23 14:10:25 -04002409static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2410 struct msg_msg *msg, int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002411{
2412 return 0;
2413}
2414
Eric Paris7b41b172008-04-23 14:10:25 -04002415static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2416 struct msg_msg *msg,
2417 struct task_struct *target,
2418 long type, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002419{
2420 return 0;
2421}
2422
Eric Paris7b41b172008-04-23 14:10:25 -04002423static inline int security_shm_alloc(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002424{
2425 return 0;
2426}
2427
Eric Paris7b41b172008-04-23 14:10:25 -04002428static inline void security_shm_free(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002429{ }
2430
Eric Paris7b41b172008-04-23 14:10:25 -04002431static inline int security_shm_associate(struct shmid_kernel *shp,
2432 int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002433{
2434 return 0;
2435}
2436
Eric Paris7b41b172008-04-23 14:10:25 -04002437static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002438{
2439 return 0;
2440}
2441
Eric Paris7b41b172008-04-23 14:10:25 -04002442static inline int security_shm_shmat(struct shmid_kernel *shp,
2443 char __user *shmaddr, int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002444{
2445 return 0;
2446}
2447
Eric Paris7b41b172008-04-23 14:10:25 -04002448static inline int security_sem_alloc(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002449{
2450 return 0;
2451}
2452
Eric Paris7b41b172008-04-23 14:10:25 -04002453static inline void security_sem_free(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002454{ }
2455
Eric Paris7b41b172008-04-23 14:10:25 -04002456static inline int security_sem_associate(struct sem_array *sma, int semflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002457{
2458 return 0;
2459}
2460
Eric Paris7b41b172008-04-23 14:10:25 -04002461static inline int security_sem_semctl(struct sem_array *sma, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002462{
2463 return 0;
2464}
2465
Eric Paris7b41b172008-04-23 14:10:25 -04002466static inline int security_sem_semop(struct sem_array *sma,
2467 struct sembuf *sops, unsigned nsops,
2468 int alter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002469{
2470 return 0;
2471}
2472
Eric Paris7b41b172008-04-23 14:10:25 -04002473static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002474{ }
2475
Al Viro04ff9702007-03-12 16:17:58 +00002476static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002477{
2478 return -EINVAL;
2479}
2480
2481static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2482{
2483 return -EINVAL;
2484}
2485
Eric Paris7b41b172008-04-23 14:10:25 -04002486static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002487{
Eric Paris7b41b172008-04-23 14:10:25 -04002488 return cap_netlink_send(sk, skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002489}
2490
Eric Paris7b41b172008-04-23 14:10:25 -04002491static inline int security_netlink_recv(struct sk_buff *skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002492{
Eric Paris7b41b172008-04-23 14:10:25 -04002493 return cap_netlink_recv(skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002494}
2495
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002496static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2497{
2498 return -EOPNOTSUPP;
2499}
2500
David Howells7bf570d2008-04-29 20:52:51 +01002501static inline int security_secctx_to_secid(const char *secdata,
David Howells63cb3442008-01-15 23:47:35 +00002502 u32 seclen,
2503 u32 *secid)
2504{
2505 return -EOPNOTSUPP;
2506}
2507
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002508static inline void security_release_secctx(char *secdata, u32 seclen)
2509{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002510}
David P. Quigley1ee65e32009-09-03 14:25:57 -04002511
2512static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
2513{
2514 return -EOPNOTSUPP;
2515}
2516static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
2517{
2518 return -EOPNOTSUPP;
2519}
2520static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
2521{
2522 return -EOPNOTSUPP;
2523}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002524#endif /* CONFIG_SECURITY */
2525
2526#ifdef CONFIG_SECURITY_NETWORK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002527
David S. Miller3610cda2011-01-05 15:38:53 -08002528int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
James Morris20510f22007-10-16 23:31:32 -07002529int security_unix_may_send(struct socket *sock, struct socket *other);
2530int security_socket_create(int family, int type, int protocol, int kern);
2531int security_socket_post_create(struct socket *sock, int family,
2532 int type, int protocol, int kern);
2533int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2534int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2535int security_socket_listen(struct socket *sock, int backlog);
2536int security_socket_accept(struct socket *sock, struct socket *newsock);
James Morris20510f22007-10-16 23:31:32 -07002537int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2538int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2539 int size, int flags);
2540int security_socket_getsockname(struct socket *sock);
2541int security_socket_getpeername(struct socket *sock);
2542int security_socket_getsockopt(struct socket *sock, int level, int optname);
2543int security_socket_setsockopt(struct socket *sock, int level, int optname);
2544int security_socket_shutdown(struct socket *sock, int how);
2545int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2546int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2547 int __user *optlen, unsigned len);
2548int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2549int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2550void security_sk_free(struct sock *sk);
2551void security_sk_clone(const struct sock *sk, struct sock *newsk);
2552void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2553void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2554void security_sock_graft(struct sock*sk, struct socket *parent);
2555int security_inet_conn_request(struct sock *sk,
2556 struct sk_buff *skb, struct request_sock *req);
2557void security_inet_csk_clone(struct sock *newsk,
2558 const struct request_sock *req);
2559void security_inet_conn_established(struct sock *sk,
2560 struct sk_buff *skb);
Eric Paris2606fd12010-10-13 16:24:41 -04002561int security_secmark_relabel_packet(u32 secid);
2562void security_secmark_refcount_inc(void);
2563void security_secmark_refcount_dec(void);
Paul Moore2b980db2009-08-28 18:12:43 -04002564int security_tun_dev_create(void);
2565void security_tun_dev_post_create(struct sock *sk);
2566int security_tun_dev_attach(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002567
Linus Torvalds1da177e2005-04-16 15:20:36 -07002568#else /* CONFIG_SECURITY_NETWORK */
David S. Miller3610cda2011-01-05 15:38:53 -08002569static inline int security_unix_stream_connect(struct sock *sock,
2570 struct sock *other,
Eric Paris7b41b172008-04-23 14:10:25 -04002571 struct sock *newsk)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002572{
2573 return 0;
2574}
2575
Eric Paris7b41b172008-04-23 14:10:25 -04002576static inline int security_unix_may_send(struct socket *sock,
2577 struct socket *other)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002578{
2579 return 0;
2580}
2581
Eric Paris7b41b172008-04-23 14:10:25 -04002582static inline int security_socket_create(int family, int type,
2583 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002584{
2585 return 0;
2586}
2587
Eric Paris7b41b172008-04-23 14:10:25 -04002588static inline int security_socket_post_create(struct socket *sock,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002589 int family,
2590 int type,
2591 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002592{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002593 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002594}
2595
Eric Paris7b41b172008-04-23 14:10:25 -04002596static inline int security_socket_bind(struct socket *sock,
2597 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002598 int addrlen)
2599{
2600 return 0;
2601}
2602
Eric Paris7b41b172008-04-23 14:10:25 -04002603static inline int security_socket_connect(struct socket *sock,
2604 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002605 int addrlen)
2606{
2607 return 0;
2608}
2609
Eric Paris7b41b172008-04-23 14:10:25 -04002610static inline int security_socket_listen(struct socket *sock, int backlog)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002611{
2612 return 0;
2613}
2614
Eric Paris7b41b172008-04-23 14:10:25 -04002615static inline int security_socket_accept(struct socket *sock,
2616 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002617{
2618 return 0;
2619}
2620
Eric Paris7b41b172008-04-23 14:10:25 -04002621static inline int security_socket_sendmsg(struct socket *sock,
2622 struct msghdr *msg, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002623{
2624 return 0;
2625}
2626
Eric Paris7b41b172008-04-23 14:10:25 -04002627static inline int security_socket_recvmsg(struct socket *sock,
2628 struct msghdr *msg, int size,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002629 int flags)
2630{
2631 return 0;
2632}
2633
Eric Paris7b41b172008-04-23 14:10:25 -04002634static inline int security_socket_getsockname(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002635{
2636 return 0;
2637}
2638
Eric Paris7b41b172008-04-23 14:10:25 -04002639static inline int security_socket_getpeername(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002640{
2641 return 0;
2642}
2643
Eric Paris7b41b172008-04-23 14:10:25 -04002644static inline int security_socket_getsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002645 int level, int optname)
2646{
2647 return 0;
2648}
2649
Eric Paris7b41b172008-04-23 14:10:25 -04002650static inline int security_socket_setsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002651 int level, int optname)
2652{
2653 return 0;
2654}
2655
Eric Paris7b41b172008-04-23 14:10:25 -04002656static inline int security_socket_shutdown(struct socket *sock, int how)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002657{
2658 return 0;
2659}
Eric Paris7b41b172008-04-23 14:10:25 -04002660static inline int security_sock_rcv_skb(struct sock *sk,
2661 struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002662{
2663 return 0;
2664}
2665
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002666static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2667 int __user *optlen, unsigned len)
2668{
2669 return -ENOPROTOOPT;
2670}
2671
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002672static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002673{
2674 return -ENOPROTOOPT;
2675}
2676
Al Virodd0fc662005-10-07 07:46:04 +01002677static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002678{
2679 return 0;
2680}
2681
2682static inline void security_sk_free(struct sock *sk)
2683{
2684}
Trent Jaegerdf718372005-12-13 23:12:27 -08002685
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002686static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2687{
2688}
2689
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002690static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002691{
Trent Jaegerdf718372005-12-13 23:12:27 -08002692}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002693
2694static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2695{
2696}
2697
Eric Paris7b41b172008-04-23 14:10:25 -04002698static inline void security_sock_graft(struct sock *sk, struct socket *parent)
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002699{
2700}
2701
2702static inline int security_inet_conn_request(struct sock *sk,
2703 struct sk_buff *skb, struct request_sock *req)
2704{
2705 return 0;
2706}
2707
2708static inline void security_inet_csk_clone(struct sock *newsk,
2709 const struct request_sock *req)
2710{
2711}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002712
2713static inline void security_inet_conn_established(struct sock *sk,
2714 struct sk_buff *skb)
2715{
2716}
Paul Moore2b980db2009-08-28 18:12:43 -04002717
Eric Paris2606fd12010-10-13 16:24:41 -04002718static inline int security_secmark_relabel_packet(u32 secid)
2719{
2720 return 0;
2721}
2722
2723static inline void security_secmark_refcount_inc(void)
2724{
2725}
2726
2727static inline void security_secmark_refcount_dec(void)
2728{
2729}
2730
Paul Moore2b980db2009-08-28 18:12:43 -04002731static inline int security_tun_dev_create(void)
2732{
2733 return 0;
2734}
2735
2736static inline void security_tun_dev_post_create(struct sock *sk)
2737{
2738}
2739
2740static inline int security_tun_dev_attach(struct sock *sk)
2741{
2742 return 0;
2743}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002744#endif /* CONFIG_SECURITY_NETWORK */
2745
Trent Jaegerdf718372005-12-13 23:12:27 -08002746#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07002747
Paul Moore03e1ad72008-04-12 19:07:52 -07002748int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2749int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2750void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2751int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
James Morris20510f22007-10-16 23:31:32 -07002752int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2753int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2754 struct xfrm_sec_ctx *polsec, u32 secid);
2755int security_xfrm_state_delete(struct xfrm_state *x);
2756void security_xfrm_state_free(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -07002757int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
James Morris20510f22007-10-16 23:31:32 -07002758int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2759 struct xfrm_policy *xp, struct flowi *fl);
2760int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2761void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
Trent Jaegerdf718372005-12-13 23:12:27 -08002762
Trent Jaegerdf718372005-12-13 23:12:27 -08002763#else /* CONFIG_SECURITY_NETWORK_XFRM */
James Morris20510f22007-10-16 23:31:32 -07002764
Paul Moore03e1ad72008-04-12 19:07:52 -07002765static 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 -08002766{
2767 return 0;
2768}
2769
Paul Moore03e1ad72008-04-12 19:07:52 -07002770static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
Trent Jaegerdf718372005-12-13 23:12:27 -08002771{
2772 return 0;
2773}
2774
Paul Moore03e1ad72008-04-12 19:07:52 -07002775static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08002776{
2777}
2778
Paul Moore03e1ad72008-04-12 19:07:52 -07002779static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002780{
2781 return 0;
2782}
2783
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002784static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2785 struct xfrm_user_sec_ctx *sec_ctx)
2786{
2787 return 0;
2788}
2789
2790static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2791 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08002792{
2793 return 0;
2794}
2795
2796static inline void security_xfrm_state_free(struct xfrm_state *x)
2797{
2798}
2799
David S. Miller6f68dc32006-06-08 23:58:52 -07002800static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002801{
2802 return 0;
2803}
2804
Paul Moore03e1ad72008-04-12 19:07:52 -07002805static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08002806{
2807 return 0;
2808}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002809
2810static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2811 struct xfrm_policy *xp, struct flowi *fl)
2812{
2813 return 1;
2814}
2815
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002816static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002817{
2818 return 0;
2819}
2820
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002821static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2822{
2823}
2824
Trent Jaegerdf718372005-12-13 23:12:27 -08002825#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2826
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002827#ifdef CONFIG_SECURITY_PATH
2828int security_path_unlink(struct path *dir, struct dentry *dentry);
2829int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode);
2830int security_path_rmdir(struct path *dir, struct dentry *dentry);
2831int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
2832 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002833int security_path_truncate(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002834int security_path_symlink(struct path *dir, struct dentry *dentry,
2835 const char *old_name);
2836int security_path_link(struct dentry *old_dentry, struct path *new_dir,
2837 struct dentry *new_dentry);
2838int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
2839 struct path *new_dir, struct dentry *new_dentry);
Tetsuo Handa89eda062009-10-04 21:49:47 +09002840int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
2841 mode_t mode);
2842int security_path_chown(struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002843int security_path_chroot(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002844#else /* CONFIG_SECURITY_PATH */
2845static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
2846{
2847 return 0;
2848}
2849
2850static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
2851 int mode)
2852{
2853 return 0;
2854}
2855
2856static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
2857{
2858 return 0;
2859}
2860
2861static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
2862 int mode, unsigned int dev)
2863{
2864 return 0;
2865}
2866
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002867static inline int security_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002868{
2869 return 0;
2870}
2871
2872static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
2873 const char *old_name)
2874{
2875 return 0;
2876}
2877
2878static inline int security_path_link(struct dentry *old_dentry,
2879 struct path *new_dir,
2880 struct dentry *new_dentry)
2881{
2882 return 0;
2883}
2884
2885static inline int security_path_rename(struct path *old_dir,
2886 struct dentry *old_dentry,
2887 struct path *new_dir,
2888 struct dentry *new_dentry)
2889{
2890 return 0;
2891}
Tetsuo Handa89eda062009-10-04 21:49:47 +09002892
2893static inline int security_path_chmod(struct dentry *dentry,
2894 struct vfsmount *mnt,
2895 mode_t mode)
2896{
2897 return 0;
2898}
2899
2900static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid)
2901{
2902 return 0;
2903}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002904
2905static inline int security_path_chroot(struct path *path)
2906{
2907 return 0;
2908}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002909#endif /* CONFIG_SECURITY_PATH */
2910
David Howells29db9192005-10-30 15:02:44 -08002911#ifdef CONFIG_KEYS
2912#ifdef CONFIG_SECURITY
David Howells29db9192005-10-30 15:02:44 -08002913
David Howellsd84f4f92008-11-14 10:39:23 +11002914int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
James Morris20510f22007-10-16 23:31:32 -07002915void security_key_free(struct key *key);
2916int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002917 const struct cred *cred, key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07002918int security_key_getsecurity(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08002919
2920#else
2921
Michael LeMayd7200242006-06-22 14:47:17 -07002922static inline int security_key_alloc(struct key *key,
David Howellsd84f4f92008-11-14 10:39:23 +11002923 const struct cred *cred,
David Howells7e047ef2006-06-26 00:24:50 -07002924 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08002925{
2926 return 0;
2927}
2928
2929static inline void security_key_free(struct key *key)
2930{
2931}
2932
2933static inline int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002934 const struct cred *cred,
David Howells29db9192005-10-30 15:02:44 -08002935 key_perm_t perm)
2936{
2937 return 0;
2938}
2939
David Howells70a5bb72008-04-29 01:01:26 -07002940static inline int security_key_getsecurity(struct key *key, char **_buffer)
2941{
2942 *_buffer = NULL;
2943 return 0;
2944}
2945
David Howells29db9192005-10-30 15:02:44 -08002946#endif
2947#endif /* CONFIG_KEYS */
2948
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02002949#ifdef CONFIG_AUDIT
2950#ifdef CONFIG_SECURITY
2951int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2952int security_audit_rule_known(struct audit_krule *krule);
2953int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2954 struct audit_context *actx);
2955void security_audit_rule_free(void *lsmrule);
2956
2957#else
2958
2959static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2960 void **lsmrule)
2961{
2962 return 0;
2963}
2964
2965static inline int security_audit_rule_known(struct audit_krule *krule)
2966{
2967 return 0;
2968}
2969
2970static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2971 void *lsmrule, struct audit_context *actx)
2972{
2973 return 0;
2974}
2975
2976static inline void security_audit_rule_free(void *lsmrule)
2977{ }
2978
2979#endif /* CONFIG_SECURITY */
2980#endif /* CONFIG_AUDIT */
2981
Eric Parisda318942008-08-22 11:35:57 -04002982#ifdef CONFIG_SECURITYFS
2983
2984extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2985 struct dentry *parent, void *data,
2986 const struct file_operations *fops);
2987extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2988extern void securityfs_remove(struct dentry *dentry);
2989
2990#else /* CONFIG_SECURITYFS */
2991
2992static inline struct dentry *securityfs_create_dir(const char *name,
2993 struct dentry *parent)
2994{
2995 return ERR_PTR(-ENODEV);
2996}
2997
2998static inline struct dentry *securityfs_create_file(const char *name,
2999 mode_t mode,
3000 struct dentry *parent,
3001 void *data,
3002 const struct file_operations *fops)
3003{
3004 return ERR_PTR(-ENODEV);
3005}
3006
3007static inline void securityfs_remove(struct dentry *dentry)
3008{}
3009
3010#endif
3011
Pekka Enberg3d544f42009-03-24 11:59:23 +02003012#ifdef CONFIG_SECURITY
3013
3014static inline char *alloc_secdata(void)
3015{
3016 return (char *)get_zeroed_page(GFP_KERNEL);
3017}
3018
3019static inline void free_secdata(void *secdata)
3020{
3021 free_page((unsigned long)secdata);
3022}
3023
3024#else
3025
3026static inline char *alloc_secdata(void)
3027{
3028 return (char *)1;
3029}
3030
3031static inline void free_secdata(void *secdata)
3032{ }
3033#endif /* CONFIG_SECURITY */
3034
Linus Torvalds1da177e2005-04-16 15:20:36 -07003035#endif /* ! __LINUX_SECURITY_H */
3036