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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Linux Security plug
3 *
4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
19 *
20 */
21
22#ifndef __LINUX_SECURITY_H
23#define __LINUX_SECURITY_H
24
25#include <linux/fs.h>
26#include <linux/binfmts.h>
27#include <linux/signal.h>
28#include <linux/resource.h>
29#include <linux/sem.h>
30#include <linux/shm.h>
Eric Parisa2551df2009-07-31 12:54:11 -040031#include <linux/mm.h> /* PAGE_ALIGN */
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#include <linux/msg.h>
33#include <linux/sched.h>
David Howells29db9192005-10-30 15:02:44 -080034#include <linux/key.h>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -070035#include <linux/xfrm.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090036#include <linux/slab.h>
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -070037#include <net/flow.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020039/* Maximum number of letters for an LSM name string */
40#define SECURITY_NAME_MAX 10
41
Eric Paris06112162008-11-11 22:02:50 +110042/* If capable should audit the security request */
43#define SECURITY_CAP_NOAUDIT 0
44#define SECURITY_CAP_AUDIT 1
45
Linus Torvalds1da177e2005-04-16 15:20:36 -070046struct ctl_table;
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +020047struct audit_krule;
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
49/*
50 * These functions are in security/capability.c and are used
51 * as the default capabilities functions
52 */
David Howells3699c532009-01-06 22:27:01 +000053extern int cap_capable(struct task_struct *tsk, const struct cred *cred,
54 int cap, int audit);
Eric Paris7b41b172008-04-23 14:10:25 -040055extern int cap_settime(struct timespec *ts, struct timezone *tz);
Ingo Molnar9e488582009-05-07 19:26:19 +100056extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +010057extern int cap_ptrace_traceme(struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -040058extern 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 +110059extern int cap_capset(struct cred *new, const struct cred *old,
60 const kernel_cap_t *effective,
61 const kernel_cap_t *inheritable,
62 const kernel_cap_t *permitted);
David Howellsa6f76f22008-11-14 10:39:24 +110063extern int cap_bprm_set_creds(struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -070064extern int cap_bprm_secureexec(struct linux_binprm *bprm);
David Howells8f0cfa52008-04-29 00:59:41 -070065extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
66 const void *value, size_t size, int flags);
67extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -070068extern int cap_inode_need_killpriv(struct dentry *dentry);
69extern int cap_inode_killpriv(struct dentry *dentry);
Eric Paris7c738752009-07-31 12:53:58 -040070extern int cap_file_mmap(struct file *file, unsigned long reqprot,
71 unsigned long prot, unsigned long flags,
72 unsigned long addr, unsigned long addr_only);
David Howellsd84f4f92008-11-14 10:39:23 +110073extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070074extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +110075 unsigned long arg4, unsigned long arg5);
Eric Paris7b41b172008-04-23 14:10:25 -040076extern int cap_task_setscheduler(struct task_struct *p, int policy, struct sched_param *lp);
77extern int cap_task_setioprio(struct task_struct *p, int ioprio);
78extern int cap_task_setnice(struct task_struct *p, int nice);
Kees Cook00234592010-02-03 15:36:43 -080079extern int cap_syslog(int type, bool from_file);
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.
799 * @sock contains the socket structure.
800 * @other contains the peer socket structure.
801 * Return 0 if permission is granted.
802 * @unix_may_send:
803 * Check permissions before connecting or sending datagrams from @sock to
804 * @other.
805 * @sock contains the socket structure.
806 * @sock contains the peer socket structure.
807 * Return 0 if permission is granted.
808 *
809 * The @unix_stream_connect and @unix_may_send hooks were necessary because
810 * Linux provides an alternative to the conventional file name space for Unix
811 * domain sockets. Whereas binding and connecting to sockets in the file name
812 * space is mediated by the typical file permissions (and caught by the mknod
813 * and permission hooks in inode_security_ops), binding and connecting to
814 * sockets in the abstract name space is completely unmediated. Sufficient
815 * control of Unix domain sockets in the abstract name space isn't possible
816 * using only the socket layer hooks, since we need to know the actual target
817 * socket, which is not looked up until we are inside the af_unix code.
818 *
819 * Security hooks for socket operations.
820 *
821 * @socket_create:
822 * Check permissions prior to creating a new socket.
823 * @family contains the requested protocol family.
824 * @type contains the requested communications type.
825 * @protocol contains the requested protocol.
826 * @kern set to 1 if a kernel socket.
827 * Return 0 if permission is granted.
828 * @socket_post_create:
829 * This hook allows a module to update or allocate a per-socket security
830 * structure. Note that the security field was not added directly to the
831 * socket structure, but rather, the socket security information is stored
832 * in the associated inode. Typically, the inode alloc_security hook will
833 * allocate and and attach security information to
834 * sock->inode->i_security. This hook may be used to update the
835 * sock->inode->i_security field with additional information that wasn't
836 * available when the inode was allocated.
837 * @sock contains the newly created socket structure.
838 * @family contains the requested protocol family.
839 * @type contains the requested communications type.
840 * @protocol contains the requested protocol.
841 * @kern set to 1 if a kernel socket.
842 * @socket_bind:
843 * Check permission before socket protocol layer bind operation is
844 * performed and the socket @sock is bound to the address specified in the
845 * @address parameter.
846 * @sock contains the socket structure.
847 * @address contains the address to bind to.
848 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400849 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850 * @socket_connect:
851 * Check permission before socket protocol layer connect operation
852 * attempts to connect socket @sock to a remote address, @address.
853 * @sock contains the socket structure.
854 * @address contains the address of remote endpoint.
855 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400856 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857 * @socket_listen:
858 * Check permission before socket protocol layer listen operation.
859 * @sock contains the socket structure.
860 * @backlog contains the maximum length for the pending connection queue.
861 * Return 0 if permission is granted.
862 * @socket_accept:
863 * Check permission before accepting a new connection. Note that the new
864 * socket, @newsock, has been created and some information copied to it,
865 * but the accept operation has not actually been performed.
866 * @sock contains the listening socket structure.
867 * @newsock contains the newly created server socket for connection.
868 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869 * @socket_sendmsg:
870 * Check permission before transmitting a message to another socket.
871 * @sock contains the socket structure.
872 * @msg contains the message to be transmitted.
873 * @size contains the size of message.
874 * Return 0 if permission is granted.
875 * @socket_recvmsg:
876 * Check permission before receiving a message from a socket.
877 * @sock contains the socket structure.
878 * @msg contains the message structure.
879 * @size contains the size of message structure.
880 * @flags contains the operational flags.
Eric Paris7b41b172008-04-23 14:10:25 -0400881 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882 * @socket_getsockname:
883 * Check permission before the local address (name) of the socket object
884 * @sock is retrieved.
885 * @sock contains the socket structure.
886 * Return 0 if permission is granted.
887 * @socket_getpeername:
888 * Check permission before the remote address (name) of a socket object
889 * @sock is retrieved.
890 * @sock contains the socket structure.
891 * Return 0 if permission is granted.
892 * @socket_getsockopt:
893 * Check permissions before retrieving the options associated with socket
894 * @sock.
895 * @sock contains the socket structure.
896 * @level contains the protocol level to retrieve option from.
897 * @optname contains the name of option to retrieve.
898 * Return 0 if permission is granted.
899 * @socket_setsockopt:
900 * Check permissions before setting the options associated with socket
901 * @sock.
902 * @sock contains the socket structure.
903 * @level contains the protocol level to set options for.
904 * @optname contains the name of the option to set.
Eric Paris7b41b172008-04-23 14:10:25 -0400905 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906 * @socket_shutdown:
907 * Checks permission before all or part of a connection on the socket
908 * @sock is shut down.
909 * @sock contains the socket structure.
910 * @how contains the flag indicating how future sends and receives are handled.
911 * Return 0 if permission is granted.
912 * @socket_sock_rcv_skb:
913 * Check permissions on incoming network packets. This hook is distinct
914 * from Netfilter's IP input hooks since it is the first time that the
915 * incoming sk_buff @skb has been associated with a particular socket, @sk.
Tetsuo Handa0ed73182010-01-06 09:23:54 +0900916 * Must not sleep inside this hook because some callers hold spinlocks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917 * @sk contains the sock (not socket) associated with the incoming sk_buff.
918 * @skb contains the incoming network data.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200919 * @socket_getpeersec_stream:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920 * This hook allows the security module to provide peer socket security
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200921 * state for unix or connected tcp sockets to userspace via getsockopt
922 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
923 * socket is associated with an ipsec SA.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924 * @sock is the local socket.
925 * @optval userspace memory where the security state is to be copied.
926 * @optlen userspace int where the module should copy the actual length
927 * of the security state.
928 * @len as input is the maximum length to copy to userspace provided
929 * by the caller.
930 * Return 0 if all is well, otherwise, typical getsockopt return
931 * values.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200932 * @socket_getpeersec_dgram:
Eric Paris7b41b172008-04-23 14:10:25 -0400933 * This hook allows the security module to provide peer socket security
934 * state for udp sockets on a per-packet basis to userspace via
935 * getsockopt SO_GETPEERSEC. The application must first have indicated
936 * the IP_PASSSEC option via getsockopt. It can then retrieve the
937 * security state returned by this hook for a packet via the SCM_SECURITY
938 * ancillary message type.
939 * @skb is the skbuff for the packet being queried
940 * @secdata is a pointer to a buffer in which to copy the security data
941 * @seclen is the maximum length for @secdata
942 * Return 0 on success, error on failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943 * @sk_alloc_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400944 * Allocate and attach a security structure to the sk->sk_security field,
945 * which is used to copy security attributes between local stream sockets.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946 * @sk_free_security:
947 * Deallocate security structure.
Venkat Yekkirala892c1412006-08-04 23:08:56 -0700948 * @sk_clone_security:
949 * Clone/copy security structure.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700950 * @sk_getsecid:
951 * Retrieve the LSM-specific secid for the sock to enable caching of network
Trent Jaegerdf718372005-12-13 23:12:27 -0800952 * authorizations.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700953 * @sock_graft:
954 * Sets the socket's isec sid to the sock's sid.
955 * @inet_conn_request:
956 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
957 * @inet_csk_clone:
958 * Sets the new child socket's sid to the openreq sid.
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600959 * @inet_conn_established:
Eric Paris7b41b172008-04-23 14:10:25 -0400960 * Sets the connection's peersid to the secmark on skb.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700961 * @req_classify_flow:
962 * Sets the flow's sid to the openreq sid.
Paul Moore2b980db2009-08-28 18:12:43 -0400963 * @tun_dev_create:
964 * Check permissions prior to creating a new TUN device.
965 * @tun_dev_post_create:
966 * This hook allows a module to update or allocate a per-socket security
967 * structure.
968 * @sk contains the newly created sock structure.
969 * @tun_dev_attach:
970 * Check permissions prior to attaching to a persistent TUN device. This
971 * hook can also be used by the module to update any security state
972 * associated with the TUN device's sock structure.
973 * @sk contains the existing sock structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800974 *
975 * Security hooks for XFRM operations.
976 *
977 * @xfrm_policy_alloc_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700978 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
979 * Database used by the XFRM system.
Trent Jaegerdf718372005-12-13 23:12:27 -0800980 * @sec_ctx contains the security context information being provided by
981 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700982 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600983 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -0800984 * Return 0 if operation was successful (memory to allocate, legal context)
985 * @xfrm_policy_clone_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700986 * @old_ctx contains an existing xfrm_sec_ctx.
987 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
988 * Allocate a security structure in new_ctxp that contains the
989 * information from the old_ctx structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800990 * Return 0 if operation was successful (memory to allocate).
991 * @xfrm_policy_free_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700992 * @ctx contains the xfrm_sec_ctx
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700993 * Deallocate xp->security.
994 * @xfrm_policy_delete_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700995 * @ctx contains the xfrm_sec_ctx.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700996 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800997 * @xfrm_state_alloc_security:
998 * @x contains the xfrm_state being added to the Security Association
999 * Database by the XFRM system.
1000 * @sec_ctx contains the security context information being provided by
1001 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001002 * @secid contains the secid from which to take the mls portion of the context.
1003 * Allocate a security structure to the x->security field; the security
1004 * field is initialized to NULL when the xfrm_state is allocated. Set the
1005 * context to correspond to either sec_ctx or polsec, with the mls portion
1006 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -08001007 * Return 0 if operation was successful (memory to allocate, legal context).
1008 * @xfrm_state_free_security:
1009 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001010 * Deallocate x->security.
1011 * @xfrm_state_delete_security:
1012 * @x contains the xfrm_state.
1013 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -08001014 * @xfrm_policy_lookup:
Paul Moore03e1ad72008-04-12 19:07:52 -07001015 * @ctx contains the xfrm_sec_ctx for which the access control is being
Trent Jaegerdf718372005-12-13 23:12:27 -08001016 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001017 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -08001018 * access to the policy xp.
1019 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001020 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -08001021 * XFRMs on a packet. The hook is called when selecting either a
1022 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -05001023 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
1024 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001025 * @xfrm_state_pol_flow_match:
1026 * @x contains the state to match.
1027 * @xp contains the policy to check for a match.
1028 * @fl contains the flow to check for a match.
1029 * Return 1 if there is a match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001030 * @xfrm_decode_session:
1031 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001032 * @secid points to the flow key secid to set.
1033 * @ckall says if all xfrms used should be checked for same secid.
1034 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035 *
David Howells29db9192005-10-30 15:02:44 -08001036 * Security hooks affecting all Key Management operations
1037 *
1038 * @key_alloc:
1039 * Permit allocation of a key and assign security data. Note that key does
1040 * not have a serial number assigned at this point.
1041 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -07001042 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -08001043 * Return 0 if permission is granted, -ve error otherwise.
1044 * @key_free:
1045 * Notification of destruction; free security data.
1046 * @key points to the key.
1047 * No return value.
1048 * @key_permission:
1049 * See whether a specific operational right is granted to a process on a
Eric Paris7b41b172008-04-23 14:10:25 -04001050 * key.
David Howells29db9192005-10-30 15:02:44 -08001051 * @key_ref refers to the key (key pointer + possession attribute bit).
David Howellsd84f4f92008-11-14 10:39:23 +11001052 * @cred points to the credentials to provide the context against which to
Eric Paris7b41b172008-04-23 14:10:25 -04001053 * evaluate the security data on the key.
David Howells29db9192005-10-30 15:02:44 -08001054 * @perm describes the combination of permissions required of this key.
1055 * Return 1 if permission granted, 0 if permission denied and -ve it the
Eric Paris7b41b172008-04-23 14:10:25 -04001056 * normal permissions model should be effected.
David Howells70a5bb72008-04-29 01:01:26 -07001057 * @key_getsecurity:
1058 * Get a textual representation of the security context attached to a key
1059 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1060 * allocates the storage for the NUL-terminated string and the caller
1061 * should free it.
1062 * @key points to the key to be queried.
1063 * @_buffer points to a pointer that should be set to point to the
1064 * resulting string (if no label or an error occurs).
1065 * Return the length of the string (including terminating NUL) or -ve if
1066 * an error.
1067 * May also return 0 (and a NULL buffer pointer) if there is no label.
David Howells29db9192005-10-30 15:02:44 -08001068 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069 * Security hooks affecting all System V IPC operations.
1070 *
1071 * @ipc_permission:
1072 * Check permissions for access to IPC
1073 * @ipcp contains the kernel IPC permission structure
1074 * @flag contains the desired (requested) permission set
1075 * Return 0 if permission is granted.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001076 * @ipc_getsecid:
1077 * Get the secid associated with the ipc object.
1078 * @ipcp contains the kernel IPC permission structure.
1079 * @secid contains a pointer to the location where result will be saved.
1080 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 *
1082 * Security hooks for individual messages held in System V IPC message queues
1083 * @msg_msg_alloc_security:
1084 * Allocate and attach a security structure to the msg->security field.
1085 * The security field is initialized to NULL when the structure is first
1086 * created.
1087 * @msg contains the message structure to be modified.
1088 * Return 0 if operation was successful and permission is granted.
1089 * @msg_msg_free_security:
1090 * Deallocate the security structure for this message.
1091 * @msg contains the message structure to be modified.
1092 *
1093 * Security hooks for System V IPC Message Queues
1094 *
1095 * @msg_queue_alloc_security:
1096 * Allocate and attach a security structure to the
1097 * msq->q_perm.security field. The security field is initialized to
1098 * NULL when the structure is first created.
1099 * @msq contains the message queue structure to be modified.
1100 * Return 0 if operation was successful and permission is granted.
1101 * @msg_queue_free_security:
1102 * Deallocate security structure for this message queue.
1103 * @msq contains the message queue structure to be modified.
1104 * @msg_queue_associate:
1105 * Check permission when a message queue is requested through the
1106 * msgget system call. This hook is only called when returning the
1107 * message queue identifier for an existing message queue, not when a
1108 * new message queue is created.
1109 * @msq contains the message queue to act upon.
1110 * @msqflg contains the operation control flags.
1111 * Return 0 if permission is granted.
1112 * @msg_queue_msgctl:
1113 * Check permission when a message control operation specified by @cmd
1114 * is to be performed on the message queue @msq.
1115 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1116 * @msq contains the message queue to act upon. May be NULL.
1117 * @cmd contains the operation to be performed.
Eric Paris7b41b172008-04-23 14:10:25 -04001118 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119 * @msg_queue_msgsnd:
1120 * Check permission before a message, @msg, is enqueued on the message
1121 * queue, @msq.
1122 * @msq contains the message queue to send message to.
1123 * @msg contains the message to be enqueued.
1124 * @msqflg contains operational flags.
1125 * Return 0 if permission is granted.
1126 * @msg_queue_msgrcv:
1127 * Check permission before a message, @msg, is removed from the message
Eric Paris7b41b172008-04-23 14:10:25 -04001128 * queue, @msq. The @target task structure contains a pointer to the
1129 * process that will be receiving the message (not equal to the current
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130 * process when inline receives are being performed).
1131 * @msq contains the message queue to retrieve message from.
1132 * @msg contains the message destination.
1133 * @target contains the task structure for recipient process.
1134 * @type contains the type of message requested.
1135 * @mode contains the operational flags.
1136 * Return 0 if permission is granted.
1137 *
1138 * Security hooks for System V Shared Memory Segments
1139 *
1140 * @shm_alloc_security:
1141 * Allocate and attach a security structure to the shp->shm_perm.security
1142 * field. The security field is initialized to NULL when the structure is
1143 * first created.
1144 * @shp contains the shared memory structure to be modified.
1145 * Return 0 if operation was successful and permission is granted.
1146 * @shm_free_security:
1147 * Deallocate the security struct for this memory segment.
1148 * @shp contains the shared memory structure to be modified.
1149 * @shm_associate:
1150 * Check permission when a shared memory region is requested through the
1151 * shmget system call. This hook is only called when returning the shared
1152 * memory region identifier for an existing region, not when a new shared
1153 * memory region is created.
1154 * @shp contains the shared memory structure to be modified.
1155 * @shmflg contains the operation control flags.
1156 * Return 0 if permission is granted.
1157 * @shm_shmctl:
1158 * Check permission when a shared memory control operation specified by
1159 * @cmd is to be performed on the shared memory region @shp.
1160 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1161 * @shp contains shared memory structure to be modified.
1162 * @cmd contains the operation to be performed.
1163 * Return 0 if permission is granted.
1164 * @shm_shmat:
1165 * Check permissions prior to allowing the shmat system call to attach the
1166 * shared memory segment @shp to the data segment of the calling process.
1167 * The attaching address is specified by @shmaddr.
1168 * @shp contains the shared memory structure to be modified.
1169 * @shmaddr contains the address to attach memory region to.
1170 * @shmflg contains the operational flags.
1171 * Return 0 if permission is granted.
1172 *
1173 * Security hooks for System V Semaphores
1174 *
1175 * @sem_alloc_security:
1176 * Allocate and attach a security structure to the sma->sem_perm.security
1177 * field. The security field is initialized to NULL when the structure is
1178 * first created.
1179 * @sma contains the semaphore structure
1180 * Return 0 if operation was successful and permission is granted.
1181 * @sem_free_security:
1182 * deallocate security struct for this semaphore
1183 * @sma contains the semaphore structure.
1184 * @sem_associate:
1185 * Check permission when a semaphore is requested through the semget
1186 * system call. This hook is only called when returning the semaphore
1187 * identifier for an existing semaphore, not when a new one must be
1188 * created.
1189 * @sma contains the semaphore structure.
1190 * @semflg contains the operation control flags.
1191 * Return 0 if permission is granted.
1192 * @sem_semctl:
1193 * Check permission when a semaphore operation specified by @cmd is to be
Eric Paris7b41b172008-04-23 14:10:25 -04001194 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 * IPC_INFO or SEM_INFO.
1196 * @sma contains the semaphore structure. May be NULL.
1197 * @cmd contains the operation to be performed.
1198 * Return 0 if permission is granted.
1199 * @sem_semop
1200 * Check permissions before performing operations on members of the
Eric Paris7b41b172008-04-23 14:10:25 -04001201 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1202 * may be modified.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203 * @sma contains the semaphore structure.
1204 * @sops contains the operations to perform.
1205 * @nsops contains the number of operations to perform.
1206 * @alter contains the flag indicating whether changes are to be made.
1207 * Return 0 if permission is granted.
1208 *
Ingo Molnar9e488582009-05-07 19:26:19 +10001209 * @ptrace_access_check:
David Howells5cd9c582008-08-14 11:37:28 +01001210 * Check permission before allowing the current process to trace the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211 * @child process.
1212 * Security modules may also want to perform a process tracing check
1213 * during an execve in the set_security or apply_creds hooks of
David Howellsd84f4f92008-11-14 10:39:23 +11001214 * tracing check during an execve in the bprm_set_creds hook of
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215 * binprm_security_ops if the process is being traced and its security
1216 * attributes would be changed by the execve.
David Howells5cd9c582008-08-14 11:37:28 +01001217 * @child contains the task_struct structure for the target process.
Stephen Smalley006ebb42008-05-19 08:32:49 -04001218 * @mode contains the PTRACE_MODE flags indicating the form of access.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219 * Return 0 if permission is granted.
David Howells5cd9c582008-08-14 11:37:28 +01001220 * @ptrace_traceme:
1221 * Check that the @parent process has sufficient permission to trace the
1222 * current process before allowing the current process to present itself
1223 * to the @parent process for tracing.
Ingo Molnar9e488582009-05-07 19:26:19 +10001224 * The parent process will still have to undergo the ptrace_access_check
David Howells5cd9c582008-08-14 11:37:28 +01001225 * checks before it is allowed to trace this one.
1226 * @parent contains the task_struct structure for debugger process.
1227 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001228 * @capget:
1229 * Get the @effective, @inheritable, and @permitted capability sets for
1230 * the @target process. The hook may also perform permission checking to
1231 * determine if the current process is allowed to see the capability sets
1232 * of the @target process.
1233 * @target contains the task_struct structure for target process.
1234 * @effective contains the effective capability set.
1235 * @inheritable contains the inheritable capability set.
1236 * @permitted contains the permitted capability set.
1237 * Return 0 if the capability sets were successfully obtained.
David Howellsd84f4f92008-11-14 10:39:23 +11001238 * @capset:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239 * Set the @effective, @inheritable, and @permitted capability sets for
David Howells1cdcbec2008-11-14 10:39:14 +11001240 * the current process.
David Howellsd84f4f92008-11-14 10:39:23 +11001241 * @new contains the new credentials structure for target process.
1242 * @old contains the current credentials structure for target process.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243 * @effective contains the effective capability set.
1244 * @inheritable contains the inheritable capability set.
1245 * @permitted contains the permitted capability set.
David Howellsd84f4f92008-11-14 10:39:23 +11001246 * Return 0 and update @new if permission is granted.
Chris Wright12b59892006-03-25 03:07:41 -08001247 * @capable:
David Howells3699c532009-01-06 22:27:01 +00001248 * Check whether the @tsk process has the @cap capability in the indicated
1249 * credentials.
Chris Wright12b59892006-03-25 03:07:41 -08001250 * @tsk contains the task_struct for the process.
David Howells3699c532009-01-06 22:27:01 +00001251 * @cred contains the credentials to use.
Chris Wright12b59892006-03-25 03:07:41 -08001252 * @cap contains the capability <include/linux/capability.h>.
David Howells3699c532009-01-06 22:27:01 +00001253 * @audit: Whether to write an audit message or not
Chris Wright12b59892006-03-25 03:07:41 -08001254 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255 * @sysctl:
1256 * Check permission before accessing the @table sysctl variable in the
1257 * manner specified by @op.
1258 * @table contains the ctl_table structure for the sysctl variable.
1259 * @op contains the operation (001 = search, 002 = write, 004 = read).
1260 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261 * @syslog:
1262 * Check permission before accessing the kernel message ring or changing
1263 * logging to the console.
Eric Paris7b41b172008-04-23 14:10:25 -04001264 * See the syslog(2) manual page for an explanation of the @type values.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265 * @type contains the type of action.
Kees Cook00234592010-02-03 15:36:43 -08001266 * @from_file indicates the context of action (if it came from /proc).
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267 * Return 0 if permission is granted.
1268 * @settime:
1269 * Check permission to change the system time.
1270 * struct timespec and timezone are defined in include/linux/time.h
1271 * @ts contains new time
1272 * @tz contains new timezone
1273 * Return 0 if permission is granted.
1274 * @vm_enough_memory:
1275 * Check permissions for allocating a new virtual mapping.
Alan Cox34b4e4a2007-08-22 14:01:28 -07001276 * @mm contains the mm struct it is being added to.
Eric Paris7b41b172008-04-23 14:10:25 -04001277 * @pages contains the number of pages.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278 * Return 0 if permission is granted.
1279 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001280 * @secid_to_secctx:
1281 * Convert secid to security context.
1282 * @secid contains the security ID.
1283 * @secdata contains the pointer that stores the converted security context.
David Howells63cb3442008-01-15 23:47:35 +00001284 * @secctx_to_secid:
Eric Paris7b41b172008-04-23 14:10:25 -04001285 * Convert security context to secid.
1286 * @secid contains the pointer to the generated security ID.
1287 * @secdata contains the security context.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001288 *
1289 * @release_secctx:
1290 * Release the security context.
1291 * @secdata contains the security context.
1292 * @seclen contains the length of the security context.
1293 *
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001294 * Security hooks for Audit
1295 *
1296 * @audit_rule_init:
1297 * Allocate and initialize an LSM audit rule structure.
1298 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1299 * @op contains the operator the rule uses.
1300 * @rulestr contains the context where the rule will be applied to.
1301 * @lsmrule contains a pointer to receive the result.
1302 * Return 0 if @lsmrule has been successfully set,
1303 * -EINVAL in case of an invalid rule.
1304 *
1305 * @audit_rule_known:
1306 * Specifies whether given @rule contains any fields related to current LSM.
1307 * @rule contains the audit rule of interest.
1308 * Return 1 in case of relation found, 0 otherwise.
1309 *
1310 * @audit_rule_match:
1311 * Determine if given @secid matches a rule previously approved
1312 * by @audit_rule_known.
1313 * @secid contains the security id in question.
1314 * @field contains the field which relates to current LSM.
1315 * @op contains the operator that will be used for matching.
1316 * @rule points to the audit rule that will be checked against.
1317 * @actx points to the audit context associated with the check.
1318 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1319 *
1320 * @audit_rule_free:
1321 * Deallocate the LSM audit rule structure previously allocated by
1322 * audit_rule_init.
1323 * @rule contains the allocated rule
1324 *
David P. Quigley1ee65e32009-09-03 14:25:57 -04001325 * @inode_notifysecctx:
1326 * Notify the security module of what the security context of an inode
1327 * should be. Initializes the incore security context managed by the
1328 * security module for this inode. Example usage: NFS client invokes
1329 * this hook to initialize the security context in its incore inode to the
1330 * value provided by the server for the file when the server returned the
1331 * file's attributes to the client.
1332 *
1333 * Must be called with inode->i_mutex locked.
1334 *
1335 * @inode we wish to set the security context of.
1336 * @ctx contains the string which we wish to set in the inode.
1337 * @ctxlen contains the length of @ctx.
1338 *
1339 * @inode_setsecctx:
1340 * Change the security context of an inode. Updates the
1341 * incore security context managed by the security module and invokes the
1342 * fs code as needed (via __vfs_setxattr_noperm) to update any backing
1343 * xattrs that represent the context. Example usage: NFS server invokes
1344 * this hook to change the security context in its incore inode and on the
1345 * backing filesystem to a value provided by the client on a SETATTR
1346 * operation.
1347 *
1348 * Must be called with inode->i_mutex locked.
1349 *
1350 * @dentry contains the inode we wish to set the security context of.
1351 * @ctx contains the string which we wish to set in the inode.
1352 * @ctxlen contains the length of @ctx.
1353 *
1354 * @inode_getsecctx:
1355 * Returns a string containing all relavent security context information
1356 *
1357 * @inode we wish to set the security context of.
1358 * @ctx is a pointer in which to place the allocated security context.
1359 * @ctxlen points to the place to put the length of @ctx.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360 * This is the main security structure.
1361 */
1362struct security_operations {
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001363 char name[SECURITY_NAME_MAX + 1];
1364
Ingo Molnar9e488582009-05-07 19:26:19 +10001365 int (*ptrace_access_check) (struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001366 int (*ptrace_traceme) (struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -04001367 int (*capget) (struct task_struct *target,
1368 kernel_cap_t *effective,
1369 kernel_cap_t *inheritable, kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001370 int (*capset) (struct cred *new,
1371 const struct cred *old,
1372 const kernel_cap_t *effective,
1373 const kernel_cap_t *inheritable,
1374 const kernel_cap_t *permitted);
David Howells3699c532009-01-06 22:27:01 +00001375 int (*capable) (struct task_struct *tsk, const struct cred *cred,
1376 int cap, int audit);
Eric Paris7b41b172008-04-23 14:10:25 -04001377 int (*sysctl) (struct ctl_table *table, int op);
1378 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1379 int (*quota_on) (struct dentry *dentry);
Kees Cook00234592010-02-03 15:36:43 -08001380 int (*syslog) (int type, bool from_file);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 int (*settime) (struct timespec *ts, struct timezone *tz);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001382 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383
David Howellsa6f76f22008-11-14 10:39:24 +11001384 int (*bprm_set_creds) (struct linux_binprm *bprm);
Eric Paris7b41b172008-04-23 14:10:25 -04001385 int (*bprm_check_security) (struct linux_binprm *bprm);
1386 int (*bprm_secureexec) (struct linux_binprm *bprm);
David Howellsa6f76f22008-11-14 10:39:24 +11001387 void (*bprm_committing_creds) (struct linux_binprm *bprm);
1388 void (*bprm_committed_creds) (struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389
Eric Paris7b41b172008-04-23 14:10:25 -04001390 int (*sb_alloc_security) (struct super_block *sb);
1391 void (*sb_free_security) (struct super_block *sb);
1392 int (*sb_copy_data) (char *orig, char *copy);
James Morris12204e22008-12-19 10:44:42 +11001393 int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001394 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
David Howells726c3342006-06-23 02:02:58 -07001395 int (*sb_statfs) (struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001396 int (*sb_mount) (char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397 char *type, unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001398 int (*sb_umount) (struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001399 int (*sb_pivotroot) (struct path *old_path,
1400 struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001401 int (*sb_set_mnt_opts) (struct super_block *sb,
1402 struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001403 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1404 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001405 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001407#ifdef CONFIG_SECURITY_PATH
1408 int (*path_unlink) (struct path *dir, struct dentry *dentry);
1409 int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode);
1410 int (*path_rmdir) (struct path *dir, struct dentry *dentry);
1411 int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode,
1412 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09001413 int (*path_truncate) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001414 int (*path_symlink) (struct path *dir, struct dentry *dentry,
1415 const char *old_name);
1416 int (*path_link) (struct dentry *old_dentry, struct path *new_dir,
1417 struct dentry *new_dentry);
1418 int (*path_rename) (struct path *old_dir, struct dentry *old_dentry,
1419 struct path *new_dir, struct dentry *new_dentry);
Tetsuo Handa89eda062009-10-04 21:49:47 +09001420 int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt,
1421 mode_t mode);
1422 int (*path_chown) (struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09001423 int (*path_chroot) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001424#endif
1425
Eric Paris7b41b172008-04-23 14:10:25 -04001426 int (*inode_alloc_security) (struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001428 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1429 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430 int (*inode_create) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001431 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432 int (*inode_link) (struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001433 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1435 int (*inode_symlink) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001436 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001437 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1439 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001440 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001442 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 int (*inode_readlink) (struct dentry *dentry);
1444 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001445 int (*inode_permission) (struct inode *inode, int mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1447 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001448 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1449 const void *value, size_t size, int flags);
1450 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1451 const void *value, size_t size, int flags);
1452 int (*inode_getxattr) (struct dentry *dentry, const char *name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 int (*inode_listxattr) (struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001454 int (*inode_removexattr) (struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001455 int (*inode_need_killpriv) (struct dentry *dentry);
1456 int (*inode_killpriv) (struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001457 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1458 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1459 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1460 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461
Eric Paris7b41b172008-04-23 14:10:25 -04001462 int (*file_permission) (struct file *file, int mask);
1463 int (*file_alloc_security) (struct file *file);
1464 void (*file_free_security) (struct file *file);
1465 int (*file_ioctl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001467 int (*file_mmap) (struct file *file,
Eric Parised032182007-06-28 15:55:21 -04001468 unsigned long reqprot, unsigned long prot,
1469 unsigned long flags, unsigned long addr,
1470 unsigned long addr_only);
Eric Paris7b41b172008-04-23 14:10:25 -04001471 int (*file_mprotect) (struct vm_area_struct *vma,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 unsigned long reqprot,
1473 unsigned long prot);
Eric Paris7b41b172008-04-23 14:10:25 -04001474 int (*file_lock) (struct file *file, unsigned int cmd);
1475 int (*file_fcntl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001477 int (*file_set_fowner) (struct file *file);
1478 int (*file_send_sigiotask) (struct task_struct *tsk,
1479 struct fown_struct *fown, int sig);
1480 int (*file_receive) (struct file *file);
David Howells745ca242008-11-14 10:39:22 +11001481 int (*dentry_open) (struct file *file, const struct cred *cred);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482
1483 int (*task_create) (unsigned long clone_flags);
David Howellsee18d642009-09-02 09:14:21 +01001484 int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001485 void (*cred_free) (struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001486 int (*cred_prepare)(struct cred *new, const struct cred *old,
1487 gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001488 void (*cred_transfer)(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001489 int (*kernel_act_as)(struct cred *new, u32 secid);
1490 int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001491 int (*kernel_module_request)(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001492 int (*task_fix_setuid) (struct cred *new, const struct cred *old,
1493 int flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001494 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1495 int (*task_getpgid) (struct task_struct *p);
1496 int (*task_getsid) (struct task_struct *p);
1497 void (*task_getsecid) (struct task_struct *p, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001498 int (*task_setnice) (struct task_struct *p, int nice);
1499 int (*task_setioprio) (struct task_struct *p, int ioprio);
1500 int (*task_getioprio) (struct task_struct *p);
1501 int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim);
1502 int (*task_setscheduler) (struct task_struct *p, int policy,
1503 struct sched_param *lp);
1504 int (*task_getscheduler) (struct task_struct *p);
1505 int (*task_movememory) (struct task_struct *p);
1506 int (*task_kill) (struct task_struct *p,
1507 struct siginfo *info, int sig, u32 secid);
1508 int (*task_wait) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509 int (*task_prctl) (int option, unsigned long arg2,
1510 unsigned long arg3, unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11001511 unsigned long arg5);
Eric Paris7b41b172008-04-23 14:10:25 -04001512 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513
Eric Paris7b41b172008-04-23 14:10:25 -04001514 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001515 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001516
Eric Paris7b41b172008-04-23 14:10:25 -04001517 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1518 void (*msg_msg_free_security) (struct msg_msg *msg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519
Eric Paris7b41b172008-04-23 14:10:25 -04001520 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1521 void (*msg_queue_free_security) (struct msg_queue *msq);
1522 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1523 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1524 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1525 struct msg_msg *msg, int msqflg);
1526 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1527 struct msg_msg *msg,
1528 struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529 long type, int mode);
1530
Eric Paris7b41b172008-04-23 14:10:25 -04001531 int (*shm_alloc_security) (struct shmid_kernel *shp);
1532 void (*shm_free_security) (struct shmid_kernel *shp);
1533 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1534 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1535 int (*shm_shmat) (struct shmid_kernel *shp,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001536 char __user *shmaddr, int shmflg);
1537
Eric Paris7b41b172008-04-23 14:10:25 -04001538 int (*sem_alloc_security) (struct sem_array *sma);
1539 void (*sem_free_security) (struct sem_array *sma);
1540 int (*sem_associate) (struct sem_array *sma, int semflg);
1541 int (*sem_semctl) (struct sem_array *sma, int cmd);
1542 int (*sem_semop) (struct sem_array *sma,
1543 struct sembuf *sops, unsigned nsops, int alter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544
Eric Paris7b41b172008-04-23 14:10:25 -04001545 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1546 int (*netlink_recv) (struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001547
Linus Torvalds1da177e2005-04-16 15:20:36 -07001548 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1549
Eric Paris7b41b172008-04-23 14:10:25 -04001550 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1551 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1552 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001553 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001554 void (*release_secctx) (char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001555
David P. Quigley1ee65e32009-09-03 14:25:57 -04001556 int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen);
1557 int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen);
1558 int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen);
1559
Linus Torvalds1da177e2005-04-16 15:20:36 -07001560#ifdef CONFIG_SECURITY_NETWORK
Eric Paris7b41b172008-04-23 14:10:25 -04001561 int (*unix_stream_connect) (struct socket *sock,
1562 struct socket *other, struct sock *newsk);
1563 int (*unix_may_send) (struct socket *sock, struct socket *other);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564
1565 int (*socket_create) (int family, int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001566 int (*socket_post_create) (struct socket *sock, int family,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001567 int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001568 int (*socket_bind) (struct socket *sock,
1569 struct sockaddr *address, int addrlen);
1570 int (*socket_connect) (struct socket *sock,
1571 struct sockaddr *address, int addrlen);
1572 int (*socket_listen) (struct socket *sock, int backlog);
1573 int (*socket_accept) (struct socket *sock, struct socket *newsock);
Eric Paris7b41b172008-04-23 14:10:25 -04001574 int (*socket_sendmsg) (struct socket *sock,
1575 struct msghdr *msg, int size);
1576 int (*socket_recvmsg) (struct socket *sock,
1577 struct msghdr *msg, int size, int flags);
1578 int (*socket_getsockname) (struct socket *sock);
1579 int (*socket_getpeername) (struct socket *sock);
1580 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1581 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1582 int (*socket_shutdown) (struct socket *sock, int how);
1583 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001584 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001585 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001586 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001587 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001588 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001589 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001590 void (*sock_graft) (struct sock *sk, struct socket *parent);
1591 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1592 struct request_sock *req);
1593 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1594 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1595 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
Paul Moore2b980db2009-08-28 18:12:43 -04001596 int (*tun_dev_create)(void);
1597 void (*tun_dev_post_create)(struct sock *sk);
1598 int (*tun_dev_attach)(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001600
Trent Jaegerdf718372005-12-13 23:12:27 -08001601#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moore03e1ad72008-04-12 19:07:52 -07001602 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001603 struct xfrm_user_sec_ctx *sec_ctx);
Paul Moore03e1ad72008-04-12 19:07:52 -07001604 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1605 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1606 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001607 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001608 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001609 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001610 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001611 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Eric Paris7b41b172008-04-23 14:10:25 -04001612 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1613 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1614 struct xfrm_policy *xp,
1615 struct flowi *fl);
1616 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001617#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1618
David Howells29db9192005-10-30 15:02:44 -08001619 /* key management security hooks */
1620#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +11001621 int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001622 void (*key_free) (struct key *key);
1623 int (*key_permission) (key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11001624 const struct cred *cred,
Eric Paris7b41b172008-04-23 14:10:25 -04001625 key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07001626 int (*key_getsecurity)(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08001627#endif /* CONFIG_KEYS */
1628
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001629#ifdef CONFIG_AUDIT
Eric Paris7b41b172008-04-23 14:10:25 -04001630 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1631 int (*audit_rule_known) (struct audit_krule *krule);
1632 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1633 struct audit_context *actx);
1634 void (*audit_rule_free) (void *lsmrule);
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001635#endif /* CONFIG_AUDIT */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001636};
1637
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638/* prototypes */
Eric Paris7b41b172008-04-23 14:10:25 -04001639extern int security_init(void);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001640extern int security_module_enable(struct security_operations *ops);
Eric Paris7b41b172008-04-23 14:10:25 -04001641extern int register_security(struct security_operations *ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642
James Morris20510f22007-10-16 23:31:32 -07001643/* Security operations */
Ingo Molnar9e488582009-05-07 19:26:19 +10001644int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001645int security_ptrace_traceme(struct task_struct *parent);
James Morris20510f22007-10-16 23:31:32 -07001646int security_capget(struct task_struct *target,
Eric Paris7b41b172008-04-23 14:10:25 -04001647 kernel_cap_t *effective,
1648 kernel_cap_t *inheritable,
1649 kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001650int security_capset(struct cred *new, const struct cred *old,
1651 const kernel_cap_t *effective,
1652 const kernel_cap_t *inheritable,
1653 const kernel_cap_t *permitted);
David Howells3699c532009-01-06 22:27:01 +00001654int security_capable(int cap);
1655int security_real_capable(struct task_struct *tsk, int cap);
1656int security_real_capable_noaudit(struct task_struct *tsk, int cap);
James Morris20510f22007-10-16 23:31:32 -07001657int security_sysctl(struct ctl_table *table, int op);
1658int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1659int security_quota_on(struct dentry *dentry);
Kees Cook00234592010-02-03 15:36:43 -08001660int security_syslog(int type, bool from_file);
James Morris20510f22007-10-16 23:31:32 -07001661int security_settime(struct timespec *ts, struct timezone *tz);
1662int security_vm_enough_memory(long pages);
1663int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
Alan Cox731572d2008-10-29 14:01:20 -07001664int security_vm_enough_memory_kern(long pages);
David Howellsa6f76f22008-11-14 10:39:24 +11001665int security_bprm_set_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001666int security_bprm_check(struct linux_binprm *bprm);
David Howellsa6f76f22008-11-14 10:39:24 +11001667void security_bprm_committing_creds(struct linux_binprm *bprm);
1668void security_bprm_committed_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001669int security_bprm_secureexec(struct linux_binprm *bprm);
1670int security_sb_alloc(struct super_block *sb);
1671void security_sb_free(struct super_block *sb);
Eric Parise0007522008-03-05 10:31:54 -05001672int security_sb_copy_data(char *orig, char *copy);
James Morris12204e22008-12-19 10:44:42 +11001673int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001674int security_sb_show_options(struct seq_file *m, struct super_block *sb);
James Morris20510f22007-10-16 23:31:32 -07001675int security_sb_statfs(struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001676int security_sb_mount(char *dev_name, struct path *path,
Eric Paris7b41b172008-04-23 14:10:25 -04001677 char *type, unsigned long flags, void *data);
James Morris20510f22007-10-16 23:31:32 -07001678int security_sb_umount(struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001679int security_sb_pivotroot(struct path *old_path, struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001680int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001681void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1682 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001683int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001684
James Morris20510f22007-10-16 23:31:32 -07001685int security_inode_alloc(struct inode *inode);
1686void security_inode_free(struct inode *inode);
1687int security_inode_init_security(struct inode *inode, struct inode *dir,
1688 char **name, void **value, size_t *len);
1689int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1690int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1691 struct dentry *new_dentry);
1692int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1693int security_inode_symlink(struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001694 const char *old_name);
James Morris20510f22007-10-16 23:31:32 -07001695int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1696int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1697int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1698int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001699 struct inode *new_dir, struct dentry *new_dentry);
James Morris20510f22007-10-16 23:31:32 -07001700int security_inode_readlink(struct dentry *dentry);
1701int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001702int security_inode_permission(struct inode *inode, int mask);
James Morris20510f22007-10-16 23:31:32 -07001703int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1704int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001705int security_inode_setxattr(struct dentry *dentry, const char *name,
1706 const void *value, size_t size, int flags);
1707void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1708 const void *value, size_t size, int flags);
1709int security_inode_getxattr(struct dentry *dentry, const char *name);
James Morris20510f22007-10-16 23:31:32 -07001710int security_inode_listxattr(struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001711int security_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001712int security_inode_need_killpriv(struct dentry *dentry);
1713int security_inode_killpriv(struct dentry *dentry);
David P. Quigley42492592008-02-04 22:29:39 -08001714int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
James Morris20510f22007-10-16 23:31:32 -07001715int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1716int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001717void security_inode_getsecid(const struct inode *inode, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001718int security_file_permission(struct file *file, int mask);
1719int security_file_alloc(struct file *file);
1720void security_file_free(struct file *file);
1721int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1722int security_file_mmap(struct file *file, unsigned long reqprot,
1723 unsigned long prot, unsigned long flags,
1724 unsigned long addr, unsigned long addr_only);
1725int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
Eric Paris7b41b172008-04-23 14:10:25 -04001726 unsigned long prot);
James Morris20510f22007-10-16 23:31:32 -07001727int security_file_lock(struct file *file, unsigned int cmd);
1728int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1729int security_file_set_fowner(struct file *file);
1730int security_file_send_sigiotask(struct task_struct *tsk,
Eric Paris7b41b172008-04-23 14:10:25 -04001731 struct fown_struct *fown, int sig);
James Morris20510f22007-10-16 23:31:32 -07001732int security_file_receive(struct file *file);
David Howells745ca242008-11-14 10:39:22 +11001733int security_dentry_open(struct file *file, const struct cred *cred);
James Morris20510f22007-10-16 23:31:32 -07001734int security_task_create(unsigned long clone_flags);
David Howellsee18d642009-09-02 09:14:21 +01001735int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001736void security_cred_free(struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001737int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001738void security_transfer_creds(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001739int security_kernel_act_as(struct cred *new, u32 secid);
1740int security_kernel_create_files_as(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001741int security_kernel_module_request(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001742int security_task_fix_setuid(struct cred *new, const struct cred *old,
1743 int flags);
James Morris20510f22007-10-16 23:31:32 -07001744int security_task_setpgid(struct task_struct *p, pid_t pgid);
1745int security_task_getpgid(struct task_struct *p);
1746int security_task_getsid(struct task_struct *p);
1747void security_task_getsecid(struct task_struct *p, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001748int security_task_setnice(struct task_struct *p, int nice);
1749int security_task_setioprio(struct task_struct *p, int ioprio);
1750int security_task_getioprio(struct task_struct *p);
1751int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim);
1752int security_task_setscheduler(struct task_struct *p,
1753 int policy, struct sched_param *lp);
1754int security_task_getscheduler(struct task_struct *p);
1755int security_task_movememory(struct task_struct *p);
1756int security_task_kill(struct task_struct *p, struct siginfo *info,
1757 int sig, u32 secid);
1758int security_task_wait(struct task_struct *p);
1759int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +11001760 unsigned long arg4, unsigned long arg5);
James Morris20510f22007-10-16 23:31:32 -07001761void security_task_to_inode(struct task_struct *p, struct inode *inode);
1762int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001763void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001764int security_msg_msg_alloc(struct msg_msg *msg);
1765void security_msg_msg_free(struct msg_msg *msg);
1766int security_msg_queue_alloc(struct msg_queue *msq);
1767void security_msg_queue_free(struct msg_queue *msq);
1768int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1769int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1770int security_msg_queue_msgsnd(struct msg_queue *msq,
Eric Paris7b41b172008-04-23 14:10:25 -04001771 struct msg_msg *msg, int msqflg);
James Morris20510f22007-10-16 23:31:32 -07001772int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
Eric Paris7b41b172008-04-23 14:10:25 -04001773 struct task_struct *target, long type, int mode);
James Morris20510f22007-10-16 23:31:32 -07001774int security_shm_alloc(struct shmid_kernel *shp);
1775void security_shm_free(struct shmid_kernel *shp);
1776int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1777int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1778int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1779int security_sem_alloc(struct sem_array *sma);
1780void security_sem_free(struct sem_array *sma);
1781int security_sem_associate(struct sem_array *sma, int semflg);
1782int security_sem_semctl(struct sem_array *sma, int cmd);
1783int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1784 unsigned nsops, int alter);
Eric Paris7b41b172008-04-23 14:10:25 -04001785void security_d_instantiate(struct dentry *dentry, struct inode *inode);
James Morris20510f22007-10-16 23:31:32 -07001786int security_getprocattr(struct task_struct *p, char *name, char **value);
1787int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1788int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1789int security_netlink_recv(struct sk_buff *skb, int cap);
1790int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001791int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001792void security_release_secctx(char *secdata, u32 seclen);
1793
David P. Quigley1ee65e32009-09-03 14:25:57 -04001794int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
1795int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
1796int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797#else /* CONFIG_SECURITY */
Eric Parise0007522008-03-05 10:31:54 -05001798struct security_mnt_opts {
1799};
1800
1801static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1802{
1803}
1804
1805static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1806{
1807}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808
1809/*
1810 * This is the default capabilities functionality. Most of these functions
1811 * are just stubbed out, but a few must call the proper capable code.
1812 */
1813
1814static inline int security_init(void)
1815{
1816 return 0;
1817}
1818
Ingo Molnar9e488582009-05-07 19:26:19 +10001819static inline int security_ptrace_access_check(struct task_struct *child,
David Howells5cd9c582008-08-14 11:37:28 +01001820 unsigned int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001821{
Ingo Molnar9e488582009-05-07 19:26:19 +10001822 return cap_ptrace_access_check(child, mode);
David Howells5cd9c582008-08-14 11:37:28 +01001823}
1824
Alexander Beregalov5e186b52008-08-17 05:34:20 +04001825static inline int security_ptrace_traceme(struct task_struct *parent)
David Howells5cd9c582008-08-14 11:37:28 +01001826{
1827 return cap_ptrace_traceme(parent);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001828}
1829
Eric Paris7b41b172008-04-23 14:10:25 -04001830static inline int security_capget(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831 kernel_cap_t *effective,
1832 kernel_cap_t *inheritable,
1833 kernel_cap_t *permitted)
1834{
Eric Paris7b41b172008-04-23 14:10:25 -04001835 return cap_capget(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001836}
1837
David Howellsd84f4f92008-11-14 10:39:23 +11001838static inline int security_capset(struct cred *new,
1839 const struct cred *old,
1840 const kernel_cap_t *effective,
1841 const kernel_cap_t *inheritable,
1842 const kernel_cap_t *permitted)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843{
David Howellsd84f4f92008-11-14 10:39:23 +11001844 return cap_capset(new, old, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845}
1846
David Howells3699c532009-01-06 22:27:01 +00001847static inline int security_capable(int cap)
Chris Wright12b59892006-03-25 03:07:41 -08001848{
David Howells3699c532009-01-06 22:27:01 +00001849 return cap_capable(current, current_cred(), cap, SECURITY_CAP_AUDIT);
Eric Paris06112162008-11-11 22:02:50 +11001850}
1851
David Howells3699c532009-01-06 22:27:01 +00001852static inline int security_real_capable(struct task_struct *tsk, int cap)
Eric Paris06112162008-11-11 22:02:50 +11001853{
David Howells3699c532009-01-06 22:27:01 +00001854 int ret;
1855
1856 rcu_read_lock();
1857 ret = cap_capable(tsk, __task_cred(tsk), cap, SECURITY_CAP_AUDIT);
1858 rcu_read_unlock();
1859 return ret;
1860}
1861
1862static inline
1863int security_real_capable_noaudit(struct task_struct *tsk, int cap)
1864{
1865 int ret;
1866
1867 rcu_read_lock();
1868 ret = cap_capable(tsk, __task_cred(tsk), cap,
1869 SECURITY_CAP_NOAUDIT);
1870 rcu_read_unlock();
1871 return ret;
Chris Wright12b59892006-03-25 03:07:41 -08001872}
1873
Linus Torvalds1da177e2005-04-16 15:20:36 -07001874static inline int security_sysctl(struct ctl_table *table, int op)
1875{
1876 return 0;
1877}
1878
Eric Paris7b41b172008-04-23 14:10:25 -04001879static inline int security_quotactl(int cmds, int type, int id,
1880 struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001881{
1882 return 0;
1883}
1884
Eric Paris7b41b172008-04-23 14:10:25 -04001885static inline int security_quota_on(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001886{
1887 return 0;
1888}
1889
Kees Cook00234592010-02-03 15:36:43 -08001890static inline int security_syslog(int type, bool from_file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891{
Kees Cook00234592010-02-03 15:36:43 -08001892 return cap_syslog(type, from_file);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001893}
1894
1895static inline int security_settime(struct timespec *ts, struct timezone *tz)
1896{
1897 return cap_settime(ts, tz);
1898}
1899
1900static inline int security_vm_enough_memory(long pages)
1901{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001902 WARN_ON(current->mm == NULL);
Alan Cox731572d2008-10-29 14:01:20 -07001903 return cap_vm_enough_memory(current->mm, pages);
1904}
1905
Alan Cox34b4e4a2007-08-22 14:01:28 -07001906static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1907{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001908 WARN_ON(mm == NULL);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001909 return cap_vm_enough_memory(mm, pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001910}
1911
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001912static inline int security_vm_enough_memory_kern(long pages)
1913{
1914 /* If current->mm is a kernel thread then we will pass NULL,
1915 for this specific case that is fine */
1916 return cap_vm_enough_memory(current->mm, pages);
1917}
1918
David Howellsa6f76f22008-11-14 10:39:24 +11001919static inline int security_bprm_set_creds(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920{
David Howellsa6f76f22008-11-14 10:39:24 +11001921 return cap_bprm_set_creds(bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001922}
1923
Eric Paris7b41b172008-04-23 14:10:25 -04001924static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001925{
1926 return 0;
1927}
1928
David Howellsa6f76f22008-11-14 10:39:24 +11001929static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
1930{
1931}
1932
1933static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
1934{
1935}
1936
Eric Paris7b41b172008-04-23 14:10:25 -04001937static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001938{
1939 return cap_bprm_secureexec(bprm);
1940}
1941
Eric Paris7b41b172008-04-23 14:10:25 -04001942static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001943{
1944 return 0;
1945}
1946
Eric Paris7b41b172008-04-23 14:10:25 -04001947static inline void security_sb_free(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001948{ }
1949
Eric Paris7b41b172008-04-23 14:10:25 -04001950static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001951{
1952 return 0;
1953}
1954
James Morris12204e22008-12-19 10:44:42 +11001955static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001956{
1957 return 0;
1958}
1959
Eric Paris2069f452008-07-04 09:47:13 +10001960static inline int security_sb_show_options(struct seq_file *m,
1961 struct super_block *sb)
1962{
1963 return 0;
1964}
1965
Eric Paris7b41b172008-04-23 14:10:25 -04001966static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001967{
1968 return 0;
1969}
1970
Eric Paris7b41b172008-04-23 14:10:25 -04001971static inline int security_sb_mount(char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001972 char *type, unsigned long flags,
1973 void *data)
1974{
1975 return 0;
1976}
1977
Eric Paris7b41b172008-04-23 14:10:25 -04001978static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001979{
1980 return 0;
1981}
1982
Eric Paris7b41b172008-04-23 14:10:25 -04001983static inline int security_sb_pivotroot(struct path *old_path,
1984 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001985{
1986 return 0;
1987}
1988
Eric Parise0007522008-03-05 10:31:54 -05001989static inline int security_sb_set_mnt_opts(struct super_block *sb,
1990 struct security_mnt_opts *opts)
1991{
1992 return 0;
1993}
1994
1995static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1996 struct super_block *newsb)
1997{ }
1998
1999static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
2000{
2001 return 0;
2002}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002003
Eric Paris7b41b172008-04-23 14:10:25 -04002004static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002005{
2006 return 0;
2007}
2008
Eric Paris7b41b172008-04-23 14:10:25 -04002009static inline void security_inode_free(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002010{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002011
Eric Paris7b41b172008-04-23 14:10:25 -04002012static inline int security_inode_init_security(struct inode *inode,
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002013 struct inode *dir,
2014 char **name,
2015 void **value,
2016 size_t *len)
2017{
2018 return -EOPNOTSUPP;
2019}
Eric Paris7b41b172008-04-23 14:10:25 -04002020
2021static inline int security_inode_create(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002022 struct dentry *dentry,
2023 int mode)
2024{
2025 return 0;
2026}
2027
Eric Paris7b41b172008-04-23 14:10:25 -04002028static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002029 struct inode *dir,
2030 struct dentry *new_dentry)
2031{
2032 return 0;
2033}
2034
Eric Paris7b41b172008-04-23 14:10:25 -04002035static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036 struct dentry *dentry)
2037{
2038 return 0;
2039}
2040
Eric Paris7b41b172008-04-23 14:10:25 -04002041static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042 struct dentry *dentry,
2043 const char *old_name)
2044{
2045 return 0;
2046}
2047
Eric Paris7b41b172008-04-23 14:10:25 -04002048static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002049 struct dentry *dentry,
2050 int mode)
2051{
2052 return 0;
2053}
2054
Eric Paris7b41b172008-04-23 14:10:25 -04002055static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002056 struct dentry *dentry)
2057{
2058 return 0;
2059}
2060
Eric Paris7b41b172008-04-23 14:10:25 -04002061static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062 struct dentry *dentry,
2063 int mode, dev_t dev)
2064{
2065 return 0;
2066}
2067
Eric Paris7b41b172008-04-23 14:10:25 -04002068static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069 struct dentry *old_dentry,
2070 struct inode *new_dir,
2071 struct dentry *new_dentry)
2072{
2073 return 0;
2074}
2075
Eric Paris7b41b172008-04-23 14:10:25 -04002076static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077{
2078 return 0;
2079}
2080
Eric Paris7b41b172008-04-23 14:10:25 -04002081static inline int security_inode_follow_link(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002082 struct nameidata *nd)
2083{
2084 return 0;
2085}
2086
Al Virob77b0642008-07-17 09:37:02 -04002087static inline int security_inode_permission(struct inode *inode, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088{
2089 return 0;
2090}
2091
Eric Paris7b41b172008-04-23 14:10:25 -04002092static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093 struct iattr *attr)
2094{
2095 return 0;
2096}
2097
Eric Paris7b41b172008-04-23 14:10:25 -04002098static inline int security_inode_getattr(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099 struct dentry *dentry)
2100{
2101 return 0;
2102}
2103
David Howells8f0cfa52008-04-29 00:59:41 -07002104static inline int security_inode_setxattr(struct dentry *dentry,
2105 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106{
2107 return cap_inode_setxattr(dentry, name, value, size, flags);
2108}
2109
David Howells8f0cfa52008-04-29 00:59:41 -07002110static inline void security_inode_post_setxattr(struct dentry *dentry,
2111 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112{ }
2113
David Howells8f0cfa52008-04-29 00:59:41 -07002114static inline int security_inode_getxattr(struct dentry *dentry,
2115 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116{
2117 return 0;
2118}
2119
Eric Paris7b41b172008-04-23 14:10:25 -04002120static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121{
2122 return 0;
2123}
2124
David Howells8f0cfa52008-04-29 00:59:41 -07002125static inline int security_inode_removexattr(struct dentry *dentry,
2126 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127{
2128 return cap_inode_removexattr(dentry, name);
2129}
2130
Serge E. Hallynb5376772007-10-16 23:31:36 -07002131static inline int security_inode_need_killpriv(struct dentry *dentry)
2132{
2133 return cap_inode_need_killpriv(dentry);
2134}
2135
2136static inline int security_inode_killpriv(struct dentry *dentry)
2137{
2138 return cap_inode_killpriv(dentry);
2139}
2140
David P. Quigley42492592008-02-04 22:29:39 -08002141static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002142{
2143 return -EOPNOTSUPP;
2144}
2145
2146static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2147{
2148 return -EOPNOTSUPP;
2149}
2150
2151static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2152{
2153 return 0;
2154}
2155
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002156static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2157{
2158 *secid = 0;
2159}
2160
Eric Paris7b41b172008-04-23 14:10:25 -04002161static inline int security_file_permission(struct file *file, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002162{
2163 return 0;
2164}
2165
Eric Paris7b41b172008-04-23 14:10:25 -04002166static inline int security_file_alloc(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002167{
2168 return 0;
2169}
2170
Eric Paris7b41b172008-04-23 14:10:25 -04002171static inline void security_file_free(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002172{ }
2173
Eric Paris7b41b172008-04-23 14:10:25 -04002174static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2175 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002176{
2177 return 0;
2178}
2179
Eric Paris7b41b172008-04-23 14:10:25 -04002180static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2181 unsigned long prot,
2182 unsigned long flags,
2183 unsigned long addr,
2184 unsigned long addr_only)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185{
Eric Paris7c738752009-07-31 12:53:58 -04002186 return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187}
2188
Eric Paris7b41b172008-04-23 14:10:25 -04002189static inline int security_file_mprotect(struct vm_area_struct *vma,
2190 unsigned long reqprot,
2191 unsigned long prot)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002192{
2193 return 0;
2194}
2195
Eric Paris7b41b172008-04-23 14:10:25 -04002196static inline int security_file_lock(struct file *file, unsigned int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197{
2198 return 0;
2199}
2200
Eric Paris7b41b172008-04-23 14:10:25 -04002201static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2202 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203{
2204 return 0;
2205}
2206
Eric Paris7b41b172008-04-23 14:10:25 -04002207static inline int security_file_set_fowner(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208{
2209 return 0;
2210}
2211
Eric Paris7b41b172008-04-23 14:10:25 -04002212static inline int security_file_send_sigiotask(struct task_struct *tsk,
2213 struct fown_struct *fown,
2214 int sig)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215{
2216 return 0;
2217}
2218
Eric Paris7b41b172008-04-23 14:10:25 -04002219static inline int security_file_receive(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002220{
2221 return 0;
2222}
2223
David Howells745ca242008-11-14 10:39:22 +11002224static inline int security_dentry_open(struct file *file,
2225 const struct cred *cred)
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +09002226{
2227 return 0;
2228}
2229
Eric Paris7b41b172008-04-23 14:10:25 -04002230static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002231{
2232 return 0;
2233}
2234
David Howells945af7c2009-09-04 09:19:48 +01002235static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
2236{
2237 return 0;
2238}
David Howellsee18d642009-09-02 09:14:21 +01002239
David Howellsd84f4f92008-11-14 10:39:23 +11002240static inline void security_cred_free(struct cred *cred)
2241{ }
2242
2243static inline int security_prepare_creds(struct cred *new,
2244 const struct cred *old,
2245 gfp_t gfp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246{
2247 return 0;
2248}
2249
David Howellsee18d642009-09-02 09:14:21 +01002250static inline void security_transfer_creds(struct cred *new,
2251 const struct cred *old)
2252{
2253}
2254
David Howells3a3b7ce2008-11-14 10:39:28 +11002255static inline int security_kernel_act_as(struct cred *cred, u32 secid)
2256{
2257 return 0;
2258}
2259
2260static inline int security_kernel_create_files_as(struct cred *cred,
2261 struct inode *inode)
2262{
2263 return 0;
2264}
2265
Eric Parisdd8dbf22009-11-03 16:35:32 +11002266static inline int security_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -04002267{
2268 return 0;
2269}
2270
David Howellsd84f4f92008-11-14 10:39:23 +11002271static inline int security_task_fix_setuid(struct cred *new,
2272 const struct cred *old,
2273 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274{
David Howellsd84f4f92008-11-14 10:39:23 +11002275 return cap_task_fix_setuid(new, old, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002276}
2277
Eric Paris7b41b172008-04-23 14:10:25 -04002278static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279{
2280 return 0;
2281}
2282
Eric Paris7b41b172008-04-23 14:10:25 -04002283static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002284{
2285 return 0;
2286}
2287
Eric Paris7b41b172008-04-23 14:10:25 -04002288static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002289{
2290 return 0;
2291}
2292
Eric Paris7b41b172008-04-23 14:10:25 -04002293static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002294{
2295 *secid = 0;
2296}
David Quigleyf9008e42006-06-30 01:55:46 -07002297
Eric Paris7b41b172008-04-23 14:10:25 -04002298static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002299{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002300 return cap_task_setnice(p, nice);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002301}
2302
Eric Paris7b41b172008-04-23 14:10:25 -04002303static inline int security_task_setioprio(struct task_struct *p, int ioprio)
James Morris03e68062006-06-23 02:03:58 -07002304{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002305 return cap_task_setioprio(p, ioprio);
James Morris03e68062006-06-23 02:03:58 -07002306}
2307
Eric Paris7b41b172008-04-23 14:10:25 -04002308static inline int security_task_getioprio(struct task_struct *p)
David Quigleya1836a42006-06-30 01:55:49 -07002309{
2310 return 0;
2311}
2312
Eric Paris7b41b172008-04-23 14:10:25 -04002313static inline int security_task_setrlimit(unsigned int resource,
2314 struct rlimit *new_rlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002315{
2316 return 0;
2317}
2318
Eric Paris7b41b172008-04-23 14:10:25 -04002319static inline int security_task_setscheduler(struct task_struct *p,
2320 int policy,
2321 struct sched_param *lp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002322{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002323 return cap_task_setscheduler(p, policy, lp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002324}
2325
Eric Paris7b41b172008-04-23 14:10:25 -04002326static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327{
2328 return 0;
2329}
2330
Eric Paris7b41b172008-04-23 14:10:25 -04002331static inline int security_task_movememory(struct task_struct *p)
David Quigley35601542006-06-23 02:04:01 -07002332{
2333 return 0;
2334}
2335
Eric Paris7b41b172008-04-23 14:10:25 -04002336static inline int security_task_kill(struct task_struct *p,
2337 struct siginfo *info, int sig,
2338 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002339{
Serge Hallynaedb60a2008-02-29 15:14:57 +00002340 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002341}
2342
Eric Paris7b41b172008-04-23 14:10:25 -04002343static inline int security_task_wait(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002344{
2345 return 0;
2346}
2347
Eric Paris7b41b172008-04-23 14:10:25 -04002348static inline int security_task_prctl(int option, unsigned long arg2,
2349 unsigned long arg3,
2350 unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11002351 unsigned long arg5)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002352{
David Howellsd84f4f92008-11-14 10:39:23 +11002353 return cap_task_prctl(option, arg2, arg3, arg3, arg5);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002354}
2355
2356static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2357{ }
2358
Eric Paris7b41b172008-04-23 14:10:25 -04002359static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2360 short flag)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002361{
2362 return 0;
2363}
2364
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002365static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2366{
2367 *secid = 0;
2368}
2369
Eric Paris7b41b172008-04-23 14:10:25 -04002370static inline int security_msg_msg_alloc(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002371{
2372 return 0;
2373}
2374
Eric Paris7b41b172008-04-23 14:10:25 -04002375static inline void security_msg_msg_free(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002376{ }
2377
Eric Paris7b41b172008-04-23 14:10:25 -04002378static inline int security_msg_queue_alloc(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002379{
2380 return 0;
2381}
2382
Eric Paris7b41b172008-04-23 14:10:25 -04002383static inline void security_msg_queue_free(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002384{ }
2385
Eric Paris7b41b172008-04-23 14:10:25 -04002386static inline int security_msg_queue_associate(struct msg_queue *msq,
2387 int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002388{
2389 return 0;
2390}
2391
Eric Paris7b41b172008-04-23 14:10:25 -04002392static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002393{
2394 return 0;
2395}
2396
Eric Paris7b41b172008-04-23 14:10:25 -04002397static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2398 struct msg_msg *msg, int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002399{
2400 return 0;
2401}
2402
Eric Paris7b41b172008-04-23 14:10:25 -04002403static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2404 struct msg_msg *msg,
2405 struct task_struct *target,
2406 long type, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002407{
2408 return 0;
2409}
2410
Eric Paris7b41b172008-04-23 14:10:25 -04002411static inline int security_shm_alloc(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002412{
2413 return 0;
2414}
2415
Eric Paris7b41b172008-04-23 14:10:25 -04002416static inline void security_shm_free(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002417{ }
2418
Eric Paris7b41b172008-04-23 14:10:25 -04002419static inline int security_shm_associate(struct shmid_kernel *shp,
2420 int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002421{
2422 return 0;
2423}
2424
Eric Paris7b41b172008-04-23 14:10:25 -04002425static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002426{
2427 return 0;
2428}
2429
Eric Paris7b41b172008-04-23 14:10:25 -04002430static inline int security_shm_shmat(struct shmid_kernel *shp,
2431 char __user *shmaddr, int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432{
2433 return 0;
2434}
2435
Eric Paris7b41b172008-04-23 14:10:25 -04002436static inline int security_sem_alloc(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002437{
2438 return 0;
2439}
2440
Eric Paris7b41b172008-04-23 14:10:25 -04002441static inline void security_sem_free(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002442{ }
2443
Eric Paris7b41b172008-04-23 14:10:25 -04002444static inline int security_sem_associate(struct sem_array *sma, int semflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002445{
2446 return 0;
2447}
2448
Eric Paris7b41b172008-04-23 14:10:25 -04002449static inline int security_sem_semctl(struct sem_array *sma, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002450{
2451 return 0;
2452}
2453
Eric Paris7b41b172008-04-23 14:10:25 -04002454static inline int security_sem_semop(struct sem_array *sma,
2455 struct sembuf *sops, unsigned nsops,
2456 int alter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002457{
2458 return 0;
2459}
2460
Eric Paris7b41b172008-04-23 14:10:25 -04002461static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002462{ }
2463
Al Viro04ff9702007-03-12 16:17:58 +00002464static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002465{
2466 return -EINVAL;
2467}
2468
2469static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2470{
2471 return -EINVAL;
2472}
2473
Eric Paris7b41b172008-04-23 14:10:25 -04002474static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002475{
Eric Paris7b41b172008-04-23 14:10:25 -04002476 return cap_netlink_send(sk, skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002477}
2478
Eric Paris7b41b172008-04-23 14:10:25 -04002479static inline int security_netlink_recv(struct sk_buff *skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002480{
Eric Paris7b41b172008-04-23 14:10:25 -04002481 return cap_netlink_recv(skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002482}
2483
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002484static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2485{
2486 return -EOPNOTSUPP;
2487}
2488
David Howells7bf570d2008-04-29 20:52:51 +01002489static inline int security_secctx_to_secid(const char *secdata,
David Howells63cb3442008-01-15 23:47:35 +00002490 u32 seclen,
2491 u32 *secid)
2492{
2493 return -EOPNOTSUPP;
2494}
2495
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002496static inline void security_release_secctx(char *secdata, u32 seclen)
2497{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002498}
David P. Quigley1ee65e32009-09-03 14:25:57 -04002499
2500static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
2501{
2502 return -EOPNOTSUPP;
2503}
2504static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
2505{
2506 return -EOPNOTSUPP;
2507}
2508static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
2509{
2510 return -EOPNOTSUPP;
2511}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002512#endif /* CONFIG_SECURITY */
2513
2514#ifdef CONFIG_SECURITY_NETWORK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002515
James Morris20510f22007-10-16 23:31:32 -07002516int security_unix_stream_connect(struct socket *sock, struct socket *other,
2517 struct sock *newsk);
2518int security_unix_may_send(struct socket *sock, struct socket *other);
2519int security_socket_create(int family, int type, int protocol, int kern);
2520int security_socket_post_create(struct socket *sock, int family,
2521 int type, int protocol, int kern);
2522int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2523int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2524int security_socket_listen(struct socket *sock, int backlog);
2525int security_socket_accept(struct socket *sock, struct socket *newsock);
James Morris20510f22007-10-16 23:31:32 -07002526int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2527int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2528 int size, int flags);
2529int security_socket_getsockname(struct socket *sock);
2530int security_socket_getpeername(struct socket *sock);
2531int security_socket_getsockopt(struct socket *sock, int level, int optname);
2532int security_socket_setsockopt(struct socket *sock, int level, int optname);
2533int security_socket_shutdown(struct socket *sock, int how);
2534int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2535int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2536 int __user *optlen, unsigned len);
2537int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2538int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2539void security_sk_free(struct sock *sk);
2540void security_sk_clone(const struct sock *sk, struct sock *newsk);
2541void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2542void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2543void security_sock_graft(struct sock*sk, struct socket *parent);
2544int security_inet_conn_request(struct sock *sk,
2545 struct sk_buff *skb, struct request_sock *req);
2546void security_inet_csk_clone(struct sock *newsk,
2547 const struct request_sock *req);
2548void security_inet_conn_established(struct sock *sk,
2549 struct sk_buff *skb);
Paul Moore2b980db2009-08-28 18:12:43 -04002550int security_tun_dev_create(void);
2551void security_tun_dev_post_create(struct sock *sk);
2552int security_tun_dev_attach(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002553
Linus Torvalds1da177e2005-04-16 15:20:36 -07002554#else /* CONFIG_SECURITY_NETWORK */
Eric Paris7b41b172008-04-23 14:10:25 -04002555static inline int security_unix_stream_connect(struct socket *sock,
2556 struct socket *other,
2557 struct sock *newsk)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002558{
2559 return 0;
2560}
2561
Eric Paris7b41b172008-04-23 14:10:25 -04002562static inline int security_unix_may_send(struct socket *sock,
2563 struct socket *other)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002564{
2565 return 0;
2566}
2567
Eric Paris7b41b172008-04-23 14:10:25 -04002568static inline int security_socket_create(int family, int type,
2569 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002570{
2571 return 0;
2572}
2573
Eric Paris7b41b172008-04-23 14:10:25 -04002574static inline int security_socket_post_create(struct socket *sock,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002575 int family,
2576 int type,
2577 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002578{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002579 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002580}
2581
Eric Paris7b41b172008-04-23 14:10:25 -04002582static inline int security_socket_bind(struct socket *sock,
2583 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002584 int addrlen)
2585{
2586 return 0;
2587}
2588
Eric Paris7b41b172008-04-23 14:10:25 -04002589static inline int security_socket_connect(struct socket *sock,
2590 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002591 int addrlen)
2592{
2593 return 0;
2594}
2595
Eric Paris7b41b172008-04-23 14:10:25 -04002596static inline int security_socket_listen(struct socket *sock, int backlog)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002597{
2598 return 0;
2599}
2600
Eric Paris7b41b172008-04-23 14:10:25 -04002601static inline int security_socket_accept(struct socket *sock,
2602 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002603{
2604 return 0;
2605}
2606
Eric Paris7b41b172008-04-23 14:10:25 -04002607static inline int security_socket_sendmsg(struct socket *sock,
2608 struct msghdr *msg, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002609{
2610 return 0;
2611}
2612
Eric Paris7b41b172008-04-23 14:10:25 -04002613static inline int security_socket_recvmsg(struct socket *sock,
2614 struct msghdr *msg, int size,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002615 int flags)
2616{
2617 return 0;
2618}
2619
Eric Paris7b41b172008-04-23 14:10:25 -04002620static inline int security_socket_getsockname(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002621{
2622 return 0;
2623}
2624
Eric Paris7b41b172008-04-23 14:10:25 -04002625static inline int security_socket_getpeername(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002626{
2627 return 0;
2628}
2629
Eric Paris7b41b172008-04-23 14:10:25 -04002630static inline int security_socket_getsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002631 int level, int optname)
2632{
2633 return 0;
2634}
2635
Eric Paris7b41b172008-04-23 14:10:25 -04002636static inline int security_socket_setsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002637 int level, int optname)
2638{
2639 return 0;
2640}
2641
Eric Paris7b41b172008-04-23 14:10:25 -04002642static inline int security_socket_shutdown(struct socket *sock, int how)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002643{
2644 return 0;
2645}
Eric Paris7b41b172008-04-23 14:10:25 -04002646static inline int security_sock_rcv_skb(struct sock *sk,
2647 struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002648{
2649 return 0;
2650}
2651
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002652static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2653 int __user *optlen, unsigned len)
2654{
2655 return -ENOPROTOOPT;
2656}
2657
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002658static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002659{
2660 return -ENOPROTOOPT;
2661}
2662
Al Virodd0fc662005-10-07 07:46:04 +01002663static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002664{
2665 return 0;
2666}
2667
2668static inline void security_sk_free(struct sock *sk)
2669{
2670}
Trent Jaegerdf718372005-12-13 23:12:27 -08002671
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002672static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2673{
2674}
2675
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002676static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002677{
Trent Jaegerdf718372005-12-13 23:12:27 -08002678}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002679
2680static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2681{
2682}
2683
Eric Paris7b41b172008-04-23 14:10:25 -04002684static inline void security_sock_graft(struct sock *sk, struct socket *parent)
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002685{
2686}
2687
2688static inline int security_inet_conn_request(struct sock *sk,
2689 struct sk_buff *skb, struct request_sock *req)
2690{
2691 return 0;
2692}
2693
2694static inline void security_inet_csk_clone(struct sock *newsk,
2695 const struct request_sock *req)
2696{
2697}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002698
2699static inline void security_inet_conn_established(struct sock *sk,
2700 struct sk_buff *skb)
2701{
2702}
Paul Moore2b980db2009-08-28 18:12:43 -04002703
2704static inline int security_tun_dev_create(void)
2705{
2706 return 0;
2707}
2708
2709static inline void security_tun_dev_post_create(struct sock *sk)
2710{
2711}
2712
2713static inline int security_tun_dev_attach(struct sock *sk)
2714{
2715 return 0;
2716}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002717#endif /* CONFIG_SECURITY_NETWORK */
2718
Trent Jaegerdf718372005-12-13 23:12:27 -08002719#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07002720
Paul Moore03e1ad72008-04-12 19:07:52 -07002721int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2722int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2723void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2724int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
James Morris20510f22007-10-16 23:31:32 -07002725int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2726int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2727 struct xfrm_sec_ctx *polsec, u32 secid);
2728int security_xfrm_state_delete(struct xfrm_state *x);
2729void security_xfrm_state_free(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -07002730int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
James Morris20510f22007-10-16 23:31:32 -07002731int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2732 struct xfrm_policy *xp, struct flowi *fl);
2733int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2734void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
Trent Jaegerdf718372005-12-13 23:12:27 -08002735
Trent Jaegerdf718372005-12-13 23:12:27 -08002736#else /* CONFIG_SECURITY_NETWORK_XFRM */
James Morris20510f22007-10-16 23:31:32 -07002737
Paul Moore03e1ad72008-04-12 19:07:52 -07002738static 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 -08002739{
2740 return 0;
2741}
2742
Paul Moore03e1ad72008-04-12 19:07:52 -07002743static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
Trent Jaegerdf718372005-12-13 23:12:27 -08002744{
2745 return 0;
2746}
2747
Paul Moore03e1ad72008-04-12 19:07:52 -07002748static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08002749{
2750}
2751
Paul Moore03e1ad72008-04-12 19:07:52 -07002752static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002753{
2754 return 0;
2755}
2756
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002757static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2758 struct xfrm_user_sec_ctx *sec_ctx)
2759{
2760 return 0;
2761}
2762
2763static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2764 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08002765{
2766 return 0;
2767}
2768
2769static inline void security_xfrm_state_free(struct xfrm_state *x)
2770{
2771}
2772
David S. Miller6f68dc32006-06-08 23:58:52 -07002773static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002774{
2775 return 0;
2776}
2777
Paul Moore03e1ad72008-04-12 19:07:52 -07002778static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08002779{
2780 return 0;
2781}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002782
2783static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2784 struct xfrm_policy *xp, struct flowi *fl)
2785{
2786 return 1;
2787}
2788
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002789static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002790{
2791 return 0;
2792}
2793
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002794static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2795{
2796}
2797
Trent Jaegerdf718372005-12-13 23:12:27 -08002798#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2799
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002800#ifdef CONFIG_SECURITY_PATH
2801int security_path_unlink(struct path *dir, struct dentry *dentry);
2802int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode);
2803int security_path_rmdir(struct path *dir, struct dentry *dentry);
2804int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
2805 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002806int security_path_truncate(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002807int security_path_symlink(struct path *dir, struct dentry *dentry,
2808 const char *old_name);
2809int security_path_link(struct dentry *old_dentry, struct path *new_dir,
2810 struct dentry *new_dentry);
2811int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
2812 struct path *new_dir, struct dentry *new_dentry);
Tetsuo Handa89eda062009-10-04 21:49:47 +09002813int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
2814 mode_t mode);
2815int security_path_chown(struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002816int security_path_chroot(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002817#else /* CONFIG_SECURITY_PATH */
2818static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
2819{
2820 return 0;
2821}
2822
2823static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
2824 int mode)
2825{
2826 return 0;
2827}
2828
2829static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
2830{
2831 return 0;
2832}
2833
2834static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
2835 int mode, unsigned int dev)
2836{
2837 return 0;
2838}
2839
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002840static inline int security_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002841{
2842 return 0;
2843}
2844
2845static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
2846 const char *old_name)
2847{
2848 return 0;
2849}
2850
2851static inline int security_path_link(struct dentry *old_dentry,
2852 struct path *new_dir,
2853 struct dentry *new_dentry)
2854{
2855 return 0;
2856}
2857
2858static inline int security_path_rename(struct path *old_dir,
2859 struct dentry *old_dentry,
2860 struct path *new_dir,
2861 struct dentry *new_dentry)
2862{
2863 return 0;
2864}
Tetsuo Handa89eda062009-10-04 21:49:47 +09002865
2866static inline int security_path_chmod(struct dentry *dentry,
2867 struct vfsmount *mnt,
2868 mode_t mode)
2869{
2870 return 0;
2871}
2872
2873static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid)
2874{
2875 return 0;
2876}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002877
2878static inline int security_path_chroot(struct path *path)
2879{
2880 return 0;
2881}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002882#endif /* CONFIG_SECURITY_PATH */
2883
David Howells29db9192005-10-30 15:02:44 -08002884#ifdef CONFIG_KEYS
2885#ifdef CONFIG_SECURITY
David Howells29db9192005-10-30 15:02:44 -08002886
David Howellsd84f4f92008-11-14 10:39:23 +11002887int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
James Morris20510f22007-10-16 23:31:32 -07002888void security_key_free(struct key *key);
2889int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002890 const struct cred *cred, key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07002891int security_key_getsecurity(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08002892
2893#else
2894
Michael LeMayd7200242006-06-22 14:47:17 -07002895static inline int security_key_alloc(struct key *key,
David Howellsd84f4f92008-11-14 10:39:23 +11002896 const struct cred *cred,
David Howells7e047ef2006-06-26 00:24:50 -07002897 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08002898{
2899 return 0;
2900}
2901
2902static inline void security_key_free(struct key *key)
2903{
2904}
2905
2906static inline int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002907 const struct cred *cred,
David Howells29db9192005-10-30 15:02:44 -08002908 key_perm_t perm)
2909{
2910 return 0;
2911}
2912
David Howells70a5bb72008-04-29 01:01:26 -07002913static inline int security_key_getsecurity(struct key *key, char **_buffer)
2914{
2915 *_buffer = NULL;
2916 return 0;
2917}
2918
David Howells29db9192005-10-30 15:02:44 -08002919#endif
2920#endif /* CONFIG_KEYS */
2921
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02002922#ifdef CONFIG_AUDIT
2923#ifdef CONFIG_SECURITY
2924int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2925int security_audit_rule_known(struct audit_krule *krule);
2926int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2927 struct audit_context *actx);
2928void security_audit_rule_free(void *lsmrule);
2929
2930#else
2931
2932static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2933 void **lsmrule)
2934{
2935 return 0;
2936}
2937
2938static inline int security_audit_rule_known(struct audit_krule *krule)
2939{
2940 return 0;
2941}
2942
2943static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2944 void *lsmrule, struct audit_context *actx)
2945{
2946 return 0;
2947}
2948
2949static inline void security_audit_rule_free(void *lsmrule)
2950{ }
2951
2952#endif /* CONFIG_SECURITY */
2953#endif /* CONFIG_AUDIT */
2954
Eric Parisda318942008-08-22 11:35:57 -04002955#ifdef CONFIG_SECURITYFS
2956
2957extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2958 struct dentry *parent, void *data,
2959 const struct file_operations *fops);
2960extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2961extern void securityfs_remove(struct dentry *dentry);
2962
2963#else /* CONFIG_SECURITYFS */
2964
2965static inline struct dentry *securityfs_create_dir(const char *name,
2966 struct dentry *parent)
2967{
2968 return ERR_PTR(-ENODEV);
2969}
2970
2971static inline struct dentry *securityfs_create_file(const char *name,
2972 mode_t mode,
2973 struct dentry *parent,
2974 void *data,
2975 const struct file_operations *fops)
2976{
2977 return ERR_PTR(-ENODEV);
2978}
2979
2980static inline void securityfs_remove(struct dentry *dentry)
2981{}
2982
2983#endif
2984
Pekka Enberg3d544f42009-03-24 11:59:23 +02002985#ifdef CONFIG_SECURITY
2986
2987static inline char *alloc_secdata(void)
2988{
2989 return (char *)get_zeroed_page(GFP_KERNEL);
2990}
2991
2992static inline void free_secdata(void *secdata)
2993{
2994 free_page((unsigned long)secdata);
2995}
2996
2997#else
2998
2999static inline char *alloc_secdata(void)
3000{
3001 return (char *)1;
3002}
3003
3004static inline void free_secdata(void *secdata)
3005{ }
3006#endif /* CONFIG_SECURITY */
3007
Linus Torvalds1da177e2005-04-16 15:20:36 -07003008#endif /* ! __LINUX_SECURITY_H */
3009