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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Linux Security plug
3 *
4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
19 *
20 */
21
22#ifndef __LINUX_SECURITY_H
23#define __LINUX_SECURITY_H
24
25#include <linux/fs.h>
Eric Parisc4ec54b2009-12-17 21:24:34 -050026#include <linux/fsnotify.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include <linux/binfmts.h>
28#include <linux/signal.h>
29#include <linux/resource.h>
30#include <linux/sem.h>
31#include <linux/shm.h>
Eric Parisa2551df2009-07-31 12:54:11 -040032#include <linux/mm.h> /* PAGE_ALIGN */
Linus Torvalds1da177e2005-04-16 15:20:36 -070033#include <linux/msg.h>
34#include <linux/sched.h>
David Howells29db9192005-10-30 15:02:44 -080035#include <linux/key.h>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -070036#include <linux/xfrm.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090037#include <linux/slab.h>
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -070038#include <net/flow.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070039
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020040/* Maximum number of letters for an LSM name string */
41#define SECURITY_NAME_MAX 10
42
Eric Paris06112162008-11-11 22:02:50 +110043/* If capable should audit the security request */
44#define SECURITY_CAP_NOAUDIT 0
45#define SECURITY_CAP_AUDIT 1
46
Linus Torvalds1da177e2005-04-16 15:20:36 -070047struct ctl_table;
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +020048struct audit_krule;
Linus Torvalds1da177e2005-04-16 15:20:36 -070049
50/*
51 * These functions are in security/capability.c and are used
52 * as the default capabilities functions
53 */
David Howells3699c532009-01-06 22:27:01 +000054extern int cap_capable(struct task_struct *tsk, const struct cred *cred,
55 int cap, int audit);
Eric Paris7b41b172008-04-23 14:10:25 -040056extern int cap_settime(struct timespec *ts, struct timezone *tz);
Ingo Molnar9e488582009-05-07 19:26:19 +100057extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +010058extern int cap_ptrace_traceme(struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -040059extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +110060extern int cap_capset(struct cred *new, const struct cred *old,
61 const kernel_cap_t *effective,
62 const kernel_cap_t *inheritable,
63 const kernel_cap_t *permitted);
David Howellsa6f76f22008-11-14 10:39:24 +110064extern int cap_bprm_set_creds(struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -070065extern int cap_bprm_secureexec(struct linux_binprm *bprm);
David Howells8f0cfa52008-04-29 00:59:41 -070066extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
67 const void *value, size_t size, int flags);
68extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -070069extern int cap_inode_need_killpriv(struct dentry *dentry);
70extern int cap_inode_killpriv(struct dentry *dentry);
Eric Paris7c738752009-07-31 12:53:58 -040071extern int cap_file_mmap(struct file *file, unsigned long reqprot,
72 unsigned long prot, unsigned long flags,
73 unsigned long addr, unsigned long addr_only);
David Howellsd84f4f92008-11-14 10:39:23 +110074extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070075extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +110076 unsigned long arg4, unsigned long arg5);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +090077extern int cap_task_setscheduler(struct task_struct *p);
Eric Paris7b41b172008-04-23 14:10:25 -040078extern int cap_task_setioprio(struct task_struct *p, int ioprio);
79extern int cap_task_setnice(struct task_struct *p, int nice);
Kees Cook00234592010-02-03 15:36:43 -080080extern int cap_syslog(int type, bool from_file);
James Morris20510f22007-10-16 23:31:32 -070081extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
83struct msghdr;
84struct sk_buff;
85struct sock;
86struct sockaddr;
87struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -080088struct flowi;
89struct dst_entry;
90struct xfrm_selector;
91struct xfrm_policy;
92struct xfrm_state;
93struct xfrm_user_sec_ctx;
Eric Paris2069f452008-07-04 09:47:13 +100094struct seq_file;
Linus Torvalds1da177e2005-04-16 15:20:36 -070095
96extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
Darrel Goeddelc7bdb542006-06-27 13:26:11 -070097extern int cap_netlink_recv(struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -070098
wzt.wzt@gmail.com189b3b12010-02-23 23:15:28 +080099void reset_security_ops(void);
100
David Howells6e141542009-12-15 19:27:45 +0000101#ifdef CONFIG_MMU
Eric Parised032182007-06-28 15:55:21 -0400102extern unsigned long mmap_min_addr;
Eric Parisa2551df2009-07-31 12:54:11 -0400103extern unsigned long dac_mmap_min_addr;
David Howells6e141542009-12-15 19:27:45 +0000104#else
105#define dac_mmap_min_addr 0UL
106#endif
107
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108/*
109 * Values used in the task_security_ops calls
110 */
111/* setuid or setgid, id0 == uid or gid */
112#define LSM_SETID_ID 1
113
114/* setreuid or setregid, id0 == real, id1 == eff */
115#define LSM_SETID_RE 2
116
117/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
118#define LSM_SETID_RES 4
119
120/* setfsuid or setfsgid, id0 == fsuid or fsgid */
121#define LSM_SETID_FS 8
122
123/* forward declares to avoid warnings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124struct sched_param;
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700125struct request_sock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
David Howellsa6f76f22008-11-14 10:39:24 +1100127/* bprm->unsafe reasons */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128#define LSM_UNSAFE_SHARE 1
129#define LSM_UNSAFE_PTRACE 2
130#define LSM_UNSAFE_PTRACE_CAP 4
131
David Howells6e141542009-12-15 19:27:45 +0000132#ifdef CONFIG_MMU
Eric Paris47d439e2009-08-07 14:53:57 -0400133/*
134 * If a hint addr is less than mmap_min_addr change hint to be as
135 * low as possible but still greater than mmap_min_addr
136 */
137static inline unsigned long round_hint_to_min(unsigned long hint)
138{
139 hint &= PAGE_MASK;
140 if (((void *)hint != NULL) &&
141 (hint < mmap_min_addr))
142 return PAGE_ALIGN(mmap_min_addr);
143 return hint;
144}
Alexey Dobriyan8d65af72009-09-23 15:57:19 -0700145extern int mmap_min_addr_handler(struct ctl_table *table, int write,
Eric Paris47d439e2009-08-07 14:53:57 -0400146 void __user *buffer, size_t *lenp, loff_t *ppos);
David Howells6e141542009-12-15 19:27:45 +0000147#endif
Eric Paris47d439e2009-08-07 14:53:57 -0400148
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149#ifdef CONFIG_SECURITY
150
Eric Parise0007522008-03-05 10:31:54 -0500151struct security_mnt_opts {
152 char **mnt_opts;
153 int *mnt_opts_flags;
154 int num_mnt_opts;
155};
156
157static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
158{
159 opts->mnt_opts = NULL;
160 opts->mnt_opts_flags = NULL;
161 opts->num_mnt_opts = 0;
162}
163
164static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
165{
166 int i;
167 if (opts->mnt_opts)
Eric Paris7b41b172008-04-23 14:10:25 -0400168 for (i = 0; i < opts->num_mnt_opts; i++)
Eric Parise0007522008-03-05 10:31:54 -0500169 kfree(opts->mnt_opts[i]);
170 kfree(opts->mnt_opts);
171 opts->mnt_opts = NULL;
172 kfree(opts->mnt_opts_flags);
173 opts->mnt_opts_flags = NULL;
174 opts->num_mnt_opts = 0;
175}
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177/**
178 * struct security_operations - main security structure
179 *
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200180 * Security module identifier.
181 *
182 * @name:
183 * A string that acts as a unique identifeir for the LSM with max number
184 * of characters = SECURITY_NAME_MAX.
185 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186 * Security hooks for program execution operations.
187 *
David Howellsa6f76f22008-11-14 10:39:24 +1100188 * @bprm_set_creds:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 * Save security information in the bprm->security field, typically based
190 * on information about the bprm->file, for later use by the apply_creds
191 * hook. This hook may also optionally check permissions (e.g. for
192 * transitions between security domains).
193 * This hook may be called multiple times during a single execve, e.g. for
194 * interpreters. The hook can tell whether it has already been called by
195 * checking to see if @bprm->security is non-NULL. If so, then the hook
196 * may decide either to retain the security information saved earlier or
197 * to replace it.
198 * @bprm contains the linux_binprm structure.
199 * Return 0 if the hook is successful and permission is granted.
200 * @bprm_check_security:
David Howellsa6f76f22008-11-14 10:39:24 +1100201 * This hook mediates the point when a search for a binary handler will
202 * begin. It allows a check the @bprm->security value which is set in the
203 * preceding set_creds call. The primary difference from set_creds is
204 * that the argv list and envp list are reliably available in @bprm. This
205 * hook may be called multiple times during a single execve; and in each
206 * pass set_creds is called first.
Eric Paris7b41b172008-04-23 14:10:25 -0400207 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 * Return 0 if the hook is successful and permission is granted.
David Howellsa6f76f22008-11-14 10:39:24 +1100209 * @bprm_committing_creds:
210 * Prepare to install the new security attributes of a process being
211 * transformed by an execve operation, based on the old credentials
212 * pointed to by @current->cred and the information set in @bprm->cred by
213 * the bprm_set_creds hook. @bprm points to the linux_binprm structure.
214 * This hook is a good place to perform state changes on the process such
215 * as closing open file descriptors to which access will no longer be
216 * granted when the attributes are changed. This is called immediately
217 * before commit_creds().
218 * @bprm_committed_creds:
219 * Tidy up after the installation of the new security attributes of a
220 * process being transformed by an execve operation. The new credentials
221 * have, by this point, been set to @current->cred. @bprm points to the
222 * linux_binprm structure. This hook is a good place to perform state
223 * changes on the process such as clearing out non-inheritable signal
224 * state. This is called immediately after commit_creds().
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 * @bprm_secureexec:
Eric Paris7b41b172008-04-23 14:10:25 -0400226 * Return a boolean value (0 or 1) indicating whether a "secure exec"
227 * is required. The flag is passed in the auxiliary table
228 * on the initial stack to the ELF interpreter to indicate whether libc
229 * should enable secure mode.
230 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231 *
232 * Security hooks for filesystem operations.
233 *
234 * @sb_alloc_security:
235 * Allocate and attach a security structure to the sb->s_security field.
236 * The s_security field is initialized to NULL when the structure is
237 * allocated.
238 * @sb contains the super_block structure to be modified.
239 * Return 0 if operation was successful.
240 * @sb_free_security:
241 * Deallocate and clear the sb->s_security field.
242 * @sb contains the super_block structure to be modified.
243 * @sb_statfs:
David Howells726c3342006-06-23 02:02:58 -0700244 * Check permission before obtaining filesystem statistics for the @mnt
245 * mountpoint.
246 * @dentry is a handle on the superblock for the filesystem.
Eric Paris7b41b172008-04-23 14:10:25 -0400247 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 * @sb_mount:
249 * Check permission before an object specified by @dev_name is mounted on
250 * the mount point named by @nd. For an ordinary mount, @dev_name
251 * identifies a device if the file system type requires a device. For a
252 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
253 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
254 * pathname of the object being mounted.
255 * @dev_name contains the name for object being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400256 * @path contains the path for mount point object.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 * @type contains the filesystem type.
258 * @flags contains the mount flags.
259 * @data contains the filesystem-specific data.
260 * Return 0 if permission is granted.
261 * @sb_copy_data:
262 * Allow mount option data to be copied prior to parsing by the filesystem,
263 * so that the security module can extract security-specific mount
264 * options cleanly (a filesystem may modify the data e.g. with strsep()).
265 * This also allows the original mount data to be stripped of security-
266 * specific options to avoid having to make filesystems aware of them.
267 * @type the type of filesystem being mounted.
268 * @orig the original mount data copied from userspace.
269 * @copy copied data which will be passed to the security module.
270 * Returns 0 if the copy was successful.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 * @sb_umount:
272 * Check permission before the @mnt file system is unmounted.
273 * @mnt contains the mounted file system.
274 * @flags contains the unmount flags, e.g. MNT_FORCE.
275 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 * @sb_pivotroot:
277 * Check permission before pivoting the root filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400278 * @old_path contains the path for the new location of the current root (put_old).
Eric Paris7b41b172008-04-23 14:10:25 -0400279 * @new_path contains the path for the new root (new_root).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 * Return 0 if permission is granted.
Eric Parisc9180a52007-11-30 13:00:35 -0500281 * @sb_set_mnt_opts:
282 * Set the security relevant mount options used for a superblock
283 * @sb the superblock to set security mount options for
Eric Parise0007522008-03-05 10:31:54 -0500284 * @opts binary data structure containing all lsm mount data
Eric Parisc9180a52007-11-30 13:00:35 -0500285 * @sb_clone_mnt_opts:
286 * Copy all security options from a given superblock to another
287 * @oldsb old superblock which contain information to clone
288 * @newsb new superblock which needs filled in
Eric Parise0007522008-03-05 10:31:54 -0500289 * @sb_parse_opts_str:
290 * Parse a string of security data filling in the opts structure
291 * @options string containing all mount options known by the LSM
292 * @opts binary data structure usable by the LSM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 *
294 * Security hooks for inode operations.
295 *
296 * @inode_alloc_security:
297 * Allocate and attach a security structure to @inode->i_security. The
298 * i_security field is initialized to NULL when the inode structure is
299 * allocated.
300 * @inode contains the inode structure.
301 * Return 0 if operation was successful.
302 * @inode_free_security:
303 * @inode contains the inode structure.
304 * Deallocate the inode security structure and set @inode->i_security to
Eric Paris7b41b172008-04-23 14:10:25 -0400305 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700306 * @inode_init_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400307 * Obtain the security attribute name suffix and value to set on a newly
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700308 * created inode and set up the incore security field for the new inode.
309 * This hook is called by the fs code as part of the inode creation
310 * transaction and provides for atomic labeling of the inode, unlike
311 * the post_create/mkdir/... hooks called by the VFS. The hook function
312 * is expected to allocate the name and value via kmalloc, with the caller
313 * being responsible for calling kfree after using them.
314 * If the security module does not use security attributes or does
315 * not wish to put a security attribute on this particular inode,
316 * then it should return -EOPNOTSUPP to skip this processing.
317 * @inode contains the inode structure of the newly created inode.
318 * @dir contains the inode structure of the parent directory.
319 * @name will be set to the allocated name suffix (e.g. selinux).
320 * @value will be set to the allocated attribute value.
321 * @len will be set to the length of the value.
322 * Returns 0 if @name and @value have been successfully set,
323 * -EOPNOTSUPP if no security attribute is needed, or
324 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 * @inode_create:
326 * Check permission to create a regular file.
327 * @dir contains inode structure of the parent of the new file.
328 * @dentry contains the dentry structure for the file to be created.
329 * @mode contains the file mode of the file to be created.
330 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 * @inode_link:
332 * Check permission before creating a new hard link to a file.
333 * @old_dentry contains the dentry structure for an existing link to the file.
334 * @dir contains the inode structure of the parent directory of the new link.
335 * @new_dentry contains the dentry structure for the new link.
336 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900337 * @path_link:
338 * Check permission before creating a new hard link to a file.
339 * @old_dentry contains the dentry structure for an existing link
340 * to the file.
341 * @new_dir contains the path structure of the parent directory of
342 * the new link.
343 * @new_dentry contains the dentry structure for the new link.
344 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345 * @inode_unlink:
Eric Paris7b41b172008-04-23 14:10:25 -0400346 * Check the permission to remove a hard link to a file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 * @dir contains the inode structure of parent directory of the file.
348 * @dentry contains the dentry structure for file to be unlinked.
349 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900350 * @path_unlink:
351 * Check the permission to remove a hard link to a file.
352 * @dir contains the path structure of parent directory of the file.
353 * @dentry contains the dentry structure for file to be unlinked.
354 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 * @inode_symlink:
356 * Check the permission to create a symbolic link to a file.
357 * @dir contains the inode structure of parent directory of the symbolic link.
358 * @dentry contains the dentry structure of the symbolic link.
359 * @old_name contains the pathname of file.
360 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900361 * @path_symlink:
362 * Check the permission to create a symbolic link to a file.
363 * @dir contains the path structure of parent directory of
364 * the symbolic link.
365 * @dentry contains the dentry structure of the symbolic link.
366 * @old_name contains the pathname of file.
367 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 * @inode_mkdir:
369 * Check permissions to create a new directory in the existing directory
Eric Paris7b41b172008-04-23 14:10:25 -0400370 * associated with inode strcture @dir.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 * @dir containst the inode structure of parent of the directory to be created.
372 * @dentry contains the dentry structure of new directory.
373 * @mode contains the mode of new directory.
374 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900375 * @path_mkdir:
376 * Check permissions to create a new directory in the existing directory
377 * associated with path strcture @path.
378 * @dir containst the path structure of parent of the directory
379 * to be created.
380 * @dentry contains the dentry structure of new directory.
381 * @mode contains the mode of new directory.
382 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383 * @inode_rmdir:
384 * Check the permission to remove a directory.
385 * @dir contains the inode structure of parent of the directory to be removed.
386 * @dentry contains the dentry structure of directory to be removed.
387 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900388 * @path_rmdir:
389 * Check the permission to remove a directory.
390 * @dir contains the path structure of parent of the directory to be
391 * removed.
392 * @dentry contains the dentry structure of directory to be removed.
393 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 * @inode_mknod:
395 * Check permissions when creating a special file (or a socket or a fifo
396 * file created via the mknod system call). Note that if mknod operation
397 * is being done for a regular file, then the create hook will be called
398 * and not this hook.
399 * @dir contains the inode structure of parent of the new file.
400 * @dentry contains the dentry structure of the new file.
401 * @mode contains the mode of the new file.
Michael Opdenacker59c51592007-05-09 08:57:56 +0200402 * @dev contains the device number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900404 * @path_mknod:
405 * Check permissions when creating a file. Note that this hook is called
406 * even if mknod operation is being done for a regular file.
407 * @dir contains the path structure of parent of the new file.
408 * @dentry contains the dentry structure of the new file.
409 * @mode contains the mode of the new file.
410 * @dev contains the undecoded device number. Use new_decode_dev() to get
411 * the decoded device number.
412 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 * @inode_rename:
414 * Check for permission to rename a file or directory.
415 * @old_dir contains the inode structure for parent of the old link.
416 * @old_dentry contains the dentry structure of the old link.
417 * @new_dir contains the inode structure for parent of the new link.
418 * @new_dentry contains the dentry structure of the new link.
419 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900420 * @path_rename:
421 * Check for permission to rename a file or directory.
422 * @old_dir contains the path structure for parent of the old link.
423 * @old_dentry contains the dentry structure of the old link.
424 * @new_dir contains the path structure for parent of the new link.
425 * @new_dentry contains the dentry structure of the new link.
426 * Return 0 if permission is granted.
Tetsuo Handa89eda062009-10-04 21:49:47 +0900427 * @path_chmod:
428 * Check for permission to change DAC's permission of a file or directory.
429 * @dentry contains the dentry structure.
430 * @mnt contains the vfsmnt structure.
431 * @mode contains DAC's mode.
432 * Return 0 if permission is granted.
433 * @path_chown:
434 * Check for permission to change owner/group of a file or directory.
435 * @path contains the path structure.
436 * @uid contains new owner's ID.
437 * @gid contains new group's ID.
438 * Return 0 if permission is granted.
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900439 * @path_chroot:
440 * Check for permission to change root directory.
441 * @path contains the path structure.
442 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 * @inode_readlink:
444 * Check the permission to read the symbolic link.
445 * @dentry contains the dentry structure for the file link.
446 * Return 0 if permission is granted.
447 * @inode_follow_link:
448 * Check permission to follow a symbolic link when looking up a pathname.
449 * @dentry contains the dentry structure for the link.
450 * @nd contains the nameidata structure for the parent directory.
451 * Return 0 if permission is granted.
452 * @inode_permission:
453 * Check permission before accessing an inode. This hook is called by the
454 * existing Linux permission function, so a security module can use it to
455 * provide additional checking for existing Linux permission checks.
456 * Notice that this hook is called when a file is opened (as well as many
457 * other operations), whereas the file_security_ops permission hook is
458 * called when the actual read/write operations are performed.
459 * @inode contains the inode structure to check.
460 * @mask contains the permission mask.
Eric Paris7b41b172008-04-23 14:10:25 -0400461 * @nd contains the nameidata (may be NULL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462 * Return 0 if permission is granted.
463 * @inode_setattr:
464 * Check permission before setting file attributes. Note that the kernel
465 * call to notify_change is performed from several locations, whenever
466 * file attributes change (such as when a file is truncated, chown/chmod
467 * operations, transferring disk quotas, etc).
468 * @dentry contains the dentry structure for the file.
469 * @attr is the iattr structure containing the new file attributes.
470 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900471 * @path_truncate:
472 * Check permission before truncating a file.
473 * @path contains the path structure for the file.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900474 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 * @inode_getattr:
476 * Check permission before obtaining file attributes.
477 * @mnt is the vfsmount where the dentry was looked up
478 * @dentry contains the dentry structure for the file.
479 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480 * @inode_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400481 * Check permission before setting the extended attributes
482 * @value identified by @name for @dentry.
483 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 * @inode_post_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400485 * Update inode security field after successful setxattr operation.
486 * @value identified by @name for @dentry.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487 * @inode_getxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400488 * Check permission before obtaining the extended attributes
489 * identified by @name for @dentry.
490 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 * @inode_listxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400492 * Check permission before obtaining the list of extended attribute
493 * names for @dentry.
494 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495 * @inode_removexattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400496 * Check permission before removing the extended attribute
497 * identified by @name for @dentry.
498 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499 * @inode_getsecurity:
David P. Quigley42492592008-02-04 22:29:39 -0800500 * Retrieve a copy of the extended attribute representation of the
501 * security label associated with @name for @inode via @buffer. Note that
502 * @name is the remainder of the attribute name after the security prefix
503 * has been removed. @alloc is used to specify of the call should return a
504 * value via the buffer or just the value length Return size of buffer on
505 * success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506 * @inode_setsecurity:
507 * Set the security label associated with @name for @inode from the
508 * extended attribute value @value. @size indicates the size of the
509 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
Eric Paris7b41b172008-04-23 14:10:25 -0400510 * Note that @name is the remainder of the attribute name after the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511 * security. prefix has been removed.
512 * Return 0 on success.
513 * @inode_listsecurity:
514 * Copy the extended attribute names for the security labels
515 * associated with @inode into @buffer. The maximum size of @buffer
516 * is specified by @buffer_size. @buffer may be NULL to request
517 * the size of the buffer required.
518 * Returns number of bytes used/required on success.
Serge E. Hallynb5376772007-10-16 23:31:36 -0700519 * @inode_need_killpriv:
520 * Called when an inode has been changed.
521 * @dentry is the dentry being changed.
522 * Return <0 on error to abort the inode change operation.
523 * Return 0 if inode_killpriv does not need to be called.
524 * Return >0 if inode_killpriv does need to be called.
525 * @inode_killpriv:
526 * The setuid bit is being removed. Remove similar security labels.
527 * Called with the dentry->d_inode->i_mutex held.
528 * @dentry is the dentry being changed.
529 * Return 0 on success. If error is returned, then the operation
530 * causing setuid bit removal is failed.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200531 * @inode_getsecid:
532 * Get the secid associated with the node.
533 * @inode contains a pointer to the inode.
534 * @secid contains a pointer to the location where result will be saved.
535 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 *
537 * Security hooks for file operations
538 *
539 * @file_permission:
540 * Check file permissions before accessing an open file. This hook is
541 * called by various operations that read or write files. A security
542 * module can use this hook to perform additional checking on these
543 * operations, e.g. to revalidate permissions on use to support privilege
544 * bracketing or policy changes. Notice that this hook is used when the
545 * actual read/write operations are performed, whereas the
546 * inode_security_ops hook is called when a file is opened (as well as
547 * many other operations).
548 * Caveat: Although this hook can be used to revalidate permissions for
549 * various system call operations that read or write files, it does not
550 * address the revalidation of permissions for memory-mapped files.
551 * Security modules must handle this separately if they need such
552 * revalidation.
553 * @file contains the file structure being accessed.
554 * @mask contains the requested permissions.
555 * Return 0 if permission is granted.
556 * @file_alloc_security:
557 * Allocate and attach a security structure to the file->f_security field.
558 * The security field is initialized to NULL when the structure is first
559 * created.
560 * @file contains the file structure to secure.
561 * Return 0 if the hook is successful and permission is granted.
562 * @file_free_security:
563 * Deallocate and free any security structures stored in file->f_security.
564 * @file contains the file structure being modified.
565 * @file_ioctl:
566 * @file contains the file structure.
567 * @cmd contains the operation to perform.
568 * @arg contains the operational arguments.
569 * Check permission for an ioctl operation on @file. Note that @arg can
570 * sometimes represents a user space pointer; in other cases, it may be a
571 * simple integer value. When @arg represents a user space pointer, it
572 * should never be used by the security module.
573 * Return 0 if permission is granted.
574 * @file_mmap :
575 * Check permissions for a mmap operation. The @file may be NULL, e.g.
576 * if mapping anonymous memory.
577 * @file contains the file structure for file to map (may be NULL).
578 * @reqprot contains the protection requested by the application.
579 * @prot contains the protection that will be applied by the kernel.
580 * @flags contains the operational flags.
581 * Return 0 if permission is granted.
582 * @file_mprotect:
583 * Check permissions before changing memory access permissions.
584 * @vma contains the memory region to modify.
585 * @reqprot contains the protection requested by the application.
586 * @prot contains the protection that will be applied by the kernel.
587 * Return 0 if permission is granted.
588 * @file_lock:
589 * Check permission before performing file locking operations.
590 * Note: this hook mediates both flock and fcntl style locks.
591 * @file contains the file structure.
592 * @cmd contains the posix-translated lock operation to perform
593 * (e.g. F_RDLCK, F_WRLCK).
594 * Return 0 if permission is granted.
595 * @file_fcntl:
596 * Check permission before allowing the file operation specified by @cmd
597 * from being performed on the file @file. Note that @arg can sometimes
598 * represents a user space pointer; in other cases, it may be a simple
599 * integer value. When @arg represents a user space pointer, it should
600 * never be used by the security module.
601 * @file contains the file structure.
602 * @cmd contains the operation to be performed.
603 * @arg contains the operational arguments.
604 * Return 0 if permission is granted.
605 * @file_set_fowner:
606 * Save owner security information (typically from current->security) in
607 * file->f_security for later use by the send_sigiotask hook.
608 * @file contains the file structure to update.
609 * Return 0 on success.
610 * @file_send_sigiotask:
611 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
612 * process @tsk. Note that this hook is sometimes called from interrupt.
613 * Note that the fown_struct, @fown, is never outside the context of a
614 * struct file, so the file structure (and associated security information)
615 * can always be obtained:
Robert P. J. Dayb385a142007-02-10 01:46:25 -0800616 * container_of(fown, struct file, f_owner)
Eric Paris7b41b172008-04-23 14:10:25 -0400617 * @tsk contains the structure of task receiving signal.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618 * @fown contains the file owner information.
619 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
620 * Return 0 if permission is granted.
621 * @file_receive:
622 * This hook allows security modules to control the ability of a process
623 * to receive an open file descriptor via socket IPC.
624 * @file contains the file structure being received.
625 * Return 0 if permission is granted.
626 *
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +0900627 * Security hook for dentry
628 *
629 * @dentry_open
630 * Save open-time permission checking state for later use upon
631 * file_permission, and recheck access if anything has changed
632 * since inode_permission.
633 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634 * Security hooks for task operations.
635 *
636 * @task_create:
637 * Check permission before creating a child process. See the clone(2)
638 * manual page for definitions of the @clone_flags.
639 * @clone_flags contains the flags indicating what should be shared.
640 * Return 0 if permission is granted.
David Howellsee18d642009-09-02 09:14:21 +0100641 * @cred_alloc_blank:
642 * @cred points to the credentials.
643 * @gfp indicates the atomicity of any memory allocations.
644 * Only allocate sufficient memory and attach to @cred such that
645 * cred_transfer() will not get ENOMEM.
David Howellsf1752ee2008-11-14 10:39:17 +1100646 * @cred_free:
647 * @cred points to the credentials.
648 * Deallocate and clear the cred->security field in a set of credentials.
David Howellsd84f4f92008-11-14 10:39:23 +1100649 * @cred_prepare:
650 * @new points to the new credentials.
651 * @old points to the original credentials.
652 * @gfp indicates the atomicity of any memory allocations.
653 * Prepare a new set of credentials by copying the data from the old set.
David Howellsee18d642009-09-02 09:14:21 +0100654 * @cred_transfer:
655 * @new points to the new credentials.
656 * @old points to the original credentials.
657 * Transfer data from original creds to new creds
David Howells3a3b7ce2008-11-14 10:39:28 +1100658 * @kernel_act_as:
659 * Set the credentials for a kernel service to act as (subjective context).
660 * @new points to the credentials to be modified.
661 * @secid specifies the security ID to be set
662 * The current task must be the one that nominated @secid.
663 * Return 0 if successful.
664 * @kernel_create_files_as:
665 * Set the file creation context in a set of credentials to be the same as
666 * the objective context of the specified inode.
667 * @new points to the credentials to be modified.
668 * @inode points to the inode to use as a reference.
669 * The current task must be the one that nominated @inode.
670 * Return 0 if successful.
Eric Paris91884992009-08-13 09:44:57 -0400671 * @kernel_module_request:
672 * Ability to trigger the kernel to automatically upcall to userspace for
673 * userspace to load a kernel module with the given name.
Eric Parisdd8dbf22009-11-03 16:35:32 +1100674 * @kmod_name name of the module requested by the kernel
James Morrisf322abf2009-08-14 11:19:29 +1000675 * Return 0 if successful.
David Howellsd84f4f92008-11-14 10:39:23 +1100676 * @task_fix_setuid:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 * Update the module's state after setting one or more of the user
678 * identity attributes of the current process. The @flags parameter
679 * indicates which of the set*uid system calls invoked this hook. If
David Howellsd84f4f92008-11-14 10:39:23 +1100680 * @new is the set of credentials that will be installed. Modifications
681 * should be made to this rather than to @current->cred.
682 * @old is the set of credentials that are being replaces
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683 * @flags contains one of the LSM_SETID_* values.
684 * Return 0 on success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685 * @task_setpgid:
686 * Check permission before setting the process group identifier of the
687 * process @p to @pgid.
688 * @p contains the task_struct for process being modified.
689 * @pgid contains the new pgid.
690 * Return 0 if permission is granted.
691 * @task_getpgid:
692 * Check permission before getting the process group identifier of the
693 * process @p.
694 * @p contains the task_struct for the process.
695 * Return 0 if permission is granted.
696 * @task_getsid:
697 * Check permission before getting the session identifier of the process
698 * @p.
699 * @p contains the task_struct for the process.
700 * Return 0 if permission is granted.
David Quigleyf9008e42006-06-30 01:55:46 -0700701 * @task_getsecid:
702 * Retrieve the security identifier of the process @p.
703 * @p contains the task_struct for the process and place is into @secid.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200704 * In case of failure, @secid will be set to zero.
705 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 * @task_setnice:
707 * Check permission before setting the nice value of @p to @nice.
708 * @p contains the task_struct of process.
709 * @nice contains the new nice value.
710 * Return 0 if permission is granted.
James Morris03e68062006-06-23 02:03:58 -0700711 * @task_setioprio
712 * Check permission before setting the ioprio value of @p to @ioprio.
713 * @p contains the task_struct of process.
714 * @ioprio contains the new ioprio value
715 * Return 0 if permission is granted.
David Quigleya1836a42006-06-30 01:55:49 -0700716 * @task_getioprio
717 * Check permission before getting the ioprio value of @p.
718 * @p contains the task_struct of process.
719 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720 * @task_setrlimit:
721 * Check permission before setting the resource limits of the current
722 * process for @resource to @new_rlim. The old resource limit values can
723 * be examined by dereferencing (current->signal->rlim + resource).
724 * @resource contains the resource whose limit is being set.
725 * @new_rlim contains the new limits for @resource.
726 * Return 0 if permission is granted.
727 * @task_setscheduler:
728 * Check permission before setting scheduling policy and/or parameters of
729 * process @p based on @policy and @lp.
730 * @p contains the task_struct for process.
731 * @policy contains the scheduling policy.
732 * @lp contains the scheduling parameters.
733 * Return 0 if permission is granted.
734 * @task_getscheduler:
735 * Check permission before obtaining scheduling information for process
736 * @p.
737 * @p contains the task_struct for process.
738 * Return 0 if permission is granted.
David Quigley35601542006-06-23 02:04:01 -0700739 * @task_movememory
740 * Check permission before moving memory owned by process @p.
741 * @p contains the task_struct for process.
742 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 * @task_kill:
744 * Check permission before sending signal @sig to @p. @info can be NULL,
745 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
746 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
747 * from the kernel and should typically be permitted.
748 * SIGIO signals are handled separately by the send_sigiotask hook in
749 * file_security_ops.
750 * @p contains the task_struct for process.
751 * @info contains the signal information.
752 * @sig contains the signal value.
David Quigleyf9008e42006-06-30 01:55:46 -0700753 * @secid contains the sid of the process where the signal originated
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754 * Return 0 if permission is granted.
755 * @task_wait:
756 * Check permission before allowing a process to reap a child process @p
757 * and collect its status information.
758 * @p contains the task_struct for process.
759 * Return 0 if permission is granted.
760 * @task_prctl:
761 * Check permission before performing a process control operation on the
762 * current process.
763 * @option contains the operation.
764 * @arg2 contains a argument.
765 * @arg3 contains a argument.
766 * @arg4 contains a argument.
767 * @arg5 contains a argument.
David Howellsd84f4f92008-11-14 10:39:23 +1100768 * Return -ENOSYS if no-one wanted to handle this op, any other value to
769 * cause prctl() to return immediately with that value.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770 * @task_to_inode:
Eric Paris7b41b172008-04-23 14:10:25 -0400771 * Set the security attributes for an inode based on an associated task's
772 * security attributes, e.g. for /proc/pid inodes.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773 * @p contains the task_struct for the task.
774 * @inode contains the inode structure for the inode.
775 *
776 * Security hooks for Netlink messaging.
777 *
778 * @netlink_send:
779 * Save security information for a netlink message so that permission
780 * checking can be performed when the message is processed. The security
781 * information can be saved using the eff_cap field of the
Eric Paris7b41b172008-04-23 14:10:25 -0400782 * netlink_skb_parms structure. Also may be used to provide fine
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783 * grained control over message transmission.
784 * @sk associated sock of task sending the message.,
785 * @skb contains the sk_buff structure for the netlink message.
786 * Return 0 if the information was successfully saved and message
787 * is allowed to be transmitted.
788 * @netlink_recv:
789 * Check permission before processing the received netlink message in
790 * @skb.
791 * @skb contains the sk_buff structure for the netlink message.
Darrel Goeddelc7bdb542006-06-27 13:26:11 -0700792 * @cap indicates the capability required
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793 * Return 0 if permission is granted.
794 *
795 * Security hooks for Unix domain networking.
796 *
797 * @unix_stream_connect:
798 * Check permissions before establishing a Unix domain stream connection
799 * between @sock and @other.
800 * @sock contains the socket structure.
801 * @other contains the peer socket structure.
802 * Return 0 if permission is granted.
803 * @unix_may_send:
804 * Check permissions before connecting or sending datagrams from @sock to
805 * @other.
806 * @sock contains the socket structure.
807 * @sock contains the peer socket structure.
808 * Return 0 if permission is granted.
809 *
810 * The @unix_stream_connect and @unix_may_send hooks were necessary because
811 * Linux provides an alternative to the conventional file name space for Unix
812 * domain sockets. Whereas binding and connecting to sockets in the file name
813 * space is mediated by the typical file permissions (and caught by the mknod
814 * and permission hooks in inode_security_ops), binding and connecting to
815 * sockets in the abstract name space is completely unmediated. Sufficient
816 * control of Unix domain sockets in the abstract name space isn't possible
817 * using only the socket layer hooks, since we need to know the actual target
818 * socket, which is not looked up until we are inside the af_unix code.
819 *
820 * Security hooks for socket operations.
821 *
822 * @socket_create:
823 * Check permissions prior to creating a new socket.
824 * @family contains the requested protocol family.
825 * @type contains the requested communications type.
826 * @protocol contains the requested protocol.
827 * @kern set to 1 if a kernel socket.
828 * Return 0 if permission is granted.
829 * @socket_post_create:
830 * This hook allows a module to update or allocate a per-socket security
831 * structure. Note that the security field was not added directly to the
832 * socket structure, but rather, the socket security information is stored
833 * in the associated inode. Typically, the inode alloc_security hook will
834 * allocate and and attach security information to
835 * sock->inode->i_security. This hook may be used to update the
836 * sock->inode->i_security field with additional information that wasn't
837 * available when the inode was allocated.
838 * @sock contains the newly created socket structure.
839 * @family contains the requested protocol family.
840 * @type contains the requested communications type.
841 * @protocol contains the requested protocol.
842 * @kern set to 1 if a kernel socket.
843 * @socket_bind:
844 * Check permission before socket protocol layer bind operation is
845 * performed and the socket @sock is bound to the address specified in the
846 * @address parameter.
847 * @sock contains the socket structure.
848 * @address contains the address to bind to.
849 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400850 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851 * @socket_connect:
852 * Check permission before socket protocol layer connect operation
853 * attempts to connect socket @sock to a remote address, @address.
854 * @sock contains the socket structure.
855 * @address contains the address of remote endpoint.
856 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400857 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 * @socket_listen:
859 * Check permission before socket protocol layer listen operation.
860 * @sock contains the socket structure.
861 * @backlog contains the maximum length for the pending connection queue.
862 * Return 0 if permission is granted.
863 * @socket_accept:
864 * Check permission before accepting a new connection. Note that the new
865 * socket, @newsock, has been created and some information copied to it,
866 * but the accept operation has not actually been performed.
867 * @sock contains the listening socket structure.
868 * @newsock contains the newly created server socket for connection.
869 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870 * @socket_sendmsg:
871 * Check permission before transmitting a message to another socket.
872 * @sock contains the socket structure.
873 * @msg contains the message to be transmitted.
874 * @size contains the size of message.
875 * Return 0 if permission is granted.
876 * @socket_recvmsg:
877 * Check permission before receiving a message from a socket.
878 * @sock contains the socket structure.
879 * @msg contains the message structure.
880 * @size contains the size of message structure.
881 * @flags contains the operational flags.
Eric Paris7b41b172008-04-23 14:10:25 -0400882 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883 * @socket_getsockname:
884 * Check permission before the local address (name) of the socket object
885 * @sock is retrieved.
886 * @sock contains the socket structure.
887 * Return 0 if permission is granted.
888 * @socket_getpeername:
889 * Check permission before the remote address (name) of a socket object
890 * @sock is retrieved.
891 * @sock contains the socket structure.
892 * Return 0 if permission is granted.
893 * @socket_getsockopt:
894 * Check permissions before retrieving the options associated with socket
895 * @sock.
896 * @sock contains the socket structure.
897 * @level contains the protocol level to retrieve option from.
898 * @optname contains the name of option to retrieve.
899 * Return 0 if permission is granted.
900 * @socket_setsockopt:
901 * Check permissions before setting the options associated with socket
902 * @sock.
903 * @sock contains the socket structure.
904 * @level contains the protocol level to set options for.
905 * @optname contains the name of the option to set.
Eric Paris7b41b172008-04-23 14:10:25 -0400906 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907 * @socket_shutdown:
908 * Checks permission before all or part of a connection on the socket
909 * @sock is shut down.
910 * @sock contains the socket structure.
911 * @how contains the flag indicating how future sends and receives are handled.
912 * Return 0 if permission is granted.
913 * @socket_sock_rcv_skb:
914 * Check permissions on incoming network packets. This hook is distinct
915 * from Netfilter's IP input hooks since it is the first time that the
916 * incoming sk_buff @skb has been associated with a particular socket, @sk.
Tetsuo Handa0ed73182010-01-06 09:23:54 +0900917 * Must not sleep inside this hook because some callers hold spinlocks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 * @sk contains the sock (not socket) associated with the incoming sk_buff.
919 * @skb contains the incoming network data.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200920 * @socket_getpeersec_stream:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921 * This hook allows the security module to provide peer socket security
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200922 * state for unix or connected tcp sockets to userspace via getsockopt
923 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
924 * socket is associated with an ipsec SA.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 * @sock is the local socket.
926 * @optval userspace memory where the security state is to be copied.
927 * @optlen userspace int where the module should copy the actual length
928 * of the security state.
929 * @len as input is the maximum length to copy to userspace provided
930 * by the caller.
931 * Return 0 if all is well, otherwise, typical getsockopt return
932 * values.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200933 * @socket_getpeersec_dgram:
Eric Paris7b41b172008-04-23 14:10:25 -0400934 * This hook allows the security module to provide peer socket security
935 * state for udp sockets on a per-packet basis to userspace via
936 * getsockopt SO_GETPEERSEC. The application must first have indicated
937 * the IP_PASSSEC option via getsockopt. It can then retrieve the
938 * security state returned by this hook for a packet via the SCM_SECURITY
939 * ancillary message type.
940 * @skb is the skbuff for the packet being queried
941 * @secdata is a pointer to a buffer in which to copy the security data
942 * @seclen is the maximum length for @secdata
943 * Return 0 on success, error on failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 * @sk_alloc_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400945 * Allocate and attach a security structure to the sk->sk_security field,
946 * which is used to copy security attributes between local stream sockets.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947 * @sk_free_security:
948 * Deallocate security structure.
Venkat Yekkirala892c1412006-08-04 23:08:56 -0700949 * @sk_clone_security:
950 * Clone/copy security structure.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700951 * @sk_getsecid:
952 * Retrieve the LSM-specific secid for the sock to enable caching of network
Trent Jaegerdf718372005-12-13 23:12:27 -0800953 * authorizations.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700954 * @sock_graft:
955 * Sets the socket's isec sid to the sock's sid.
956 * @inet_conn_request:
957 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
958 * @inet_csk_clone:
959 * Sets the new child socket's sid to the openreq sid.
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600960 * @inet_conn_established:
Eric Paris7b41b172008-04-23 14:10:25 -0400961 * Sets the connection's peersid to the secmark on skb.
Eric Paris2606fd12010-10-13 16:24:41 -0400962 * @secmark_relabel_packet:
963 * check if the process should be allowed to relabel packets to the given secid
964 * @security_secmark_refcount_inc
965 * tells the LSM to increment the number of secmark labeling rules loaded
966 * @security_secmark_refcount_dec
967 * tells the LSM to decrement the number of secmark labeling rules loaded
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700968 * @req_classify_flow:
969 * Sets the flow's sid to the openreq sid.
Paul Moore2b980db2009-08-28 18:12:43 -0400970 * @tun_dev_create:
971 * Check permissions prior to creating a new TUN device.
972 * @tun_dev_post_create:
973 * This hook allows a module to update or allocate a per-socket security
974 * structure.
975 * @sk contains the newly created sock structure.
976 * @tun_dev_attach:
977 * Check permissions prior to attaching to a persistent TUN device. This
978 * hook can also be used by the module to update any security state
979 * associated with the TUN device's sock structure.
980 * @sk contains the existing sock structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800981 *
982 * Security hooks for XFRM operations.
983 *
984 * @xfrm_policy_alloc_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700985 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
986 * Database used by the XFRM system.
Trent Jaegerdf718372005-12-13 23:12:27 -0800987 * @sec_ctx contains the security context information being provided by
988 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700989 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600990 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -0800991 * Return 0 if operation was successful (memory to allocate, legal context)
992 * @xfrm_policy_clone_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700993 * @old_ctx contains an existing xfrm_sec_ctx.
994 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
995 * Allocate a security structure in new_ctxp that contains the
996 * information from the old_ctx structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800997 * Return 0 if operation was successful (memory to allocate).
998 * @xfrm_policy_free_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700999 * @ctx contains the xfrm_sec_ctx
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001000 * Deallocate xp->security.
1001 * @xfrm_policy_delete_security:
Paul Moore03e1ad72008-04-12 19:07:52 -07001002 * @ctx contains the xfrm_sec_ctx.
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001003 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -08001004 * @xfrm_state_alloc_security:
1005 * @x contains the xfrm_state being added to the Security Association
1006 * Database by the XFRM system.
1007 * @sec_ctx contains the security context information being provided by
1008 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001009 * @secid contains the secid from which to take the mls portion of the context.
1010 * Allocate a security structure to the x->security field; the security
1011 * field is initialized to NULL when the xfrm_state is allocated. Set the
1012 * context to correspond to either sec_ctx or polsec, with the mls portion
1013 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -08001014 * Return 0 if operation was successful (memory to allocate, legal context).
1015 * @xfrm_state_free_security:
1016 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001017 * Deallocate x->security.
1018 * @xfrm_state_delete_security:
1019 * @x contains the xfrm_state.
1020 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -08001021 * @xfrm_policy_lookup:
Paul Moore03e1ad72008-04-12 19:07:52 -07001022 * @ctx contains the xfrm_sec_ctx for which the access control is being
Trent Jaegerdf718372005-12-13 23:12:27 -08001023 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001024 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -08001025 * access to the policy xp.
1026 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001027 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -08001028 * XFRMs on a packet. The hook is called when selecting either a
1029 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -05001030 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
1031 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001032 * @xfrm_state_pol_flow_match:
1033 * @x contains the state to match.
1034 * @xp contains the policy to check for a match.
1035 * @fl contains the flow to check for a match.
1036 * Return 1 if there is a match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001037 * @xfrm_decode_session:
1038 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001039 * @secid points to the flow key secid to set.
1040 * @ckall says if all xfrms used should be checked for same secid.
1041 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042 *
David Howells29db9192005-10-30 15:02:44 -08001043 * Security hooks affecting all Key Management operations
1044 *
1045 * @key_alloc:
1046 * Permit allocation of a key and assign security data. Note that key does
1047 * not have a serial number assigned at this point.
1048 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -07001049 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -08001050 * Return 0 if permission is granted, -ve error otherwise.
1051 * @key_free:
1052 * Notification of destruction; free security data.
1053 * @key points to the key.
1054 * No return value.
1055 * @key_permission:
1056 * See whether a specific operational right is granted to a process on a
Eric Paris7b41b172008-04-23 14:10:25 -04001057 * key.
David Howells29db9192005-10-30 15:02:44 -08001058 * @key_ref refers to the key (key pointer + possession attribute bit).
David Howellsd84f4f92008-11-14 10:39:23 +11001059 * @cred points to the credentials to provide the context against which to
Eric Paris7b41b172008-04-23 14:10:25 -04001060 * evaluate the security data on the key.
David Howells29db9192005-10-30 15:02:44 -08001061 * @perm describes the combination of permissions required of this key.
1062 * Return 1 if permission granted, 0 if permission denied and -ve it the
Eric Paris7b41b172008-04-23 14:10:25 -04001063 * normal permissions model should be effected.
David Howells70a5bb72008-04-29 01:01:26 -07001064 * @key_getsecurity:
1065 * Get a textual representation of the security context attached to a key
1066 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1067 * allocates the storage for the NUL-terminated string and the caller
1068 * should free it.
1069 * @key points to the key to be queried.
1070 * @_buffer points to a pointer that should be set to point to the
1071 * resulting string (if no label or an error occurs).
1072 * Return the length of the string (including terminating NUL) or -ve if
1073 * an error.
1074 * May also return 0 (and a NULL buffer pointer) if there is no label.
David Howells29db9192005-10-30 15:02:44 -08001075 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 * Security hooks affecting all System V IPC operations.
1077 *
1078 * @ipc_permission:
1079 * Check permissions for access to IPC
1080 * @ipcp contains the kernel IPC permission structure
1081 * @flag contains the desired (requested) permission set
1082 * Return 0 if permission is granted.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001083 * @ipc_getsecid:
1084 * Get the secid associated with the ipc object.
1085 * @ipcp contains the kernel IPC permission structure.
1086 * @secid contains a pointer to the location where result will be saved.
1087 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088 *
1089 * Security hooks for individual messages held in System V IPC message queues
1090 * @msg_msg_alloc_security:
1091 * Allocate and attach a security structure to the msg->security field.
1092 * The security field is initialized to NULL when the structure is first
1093 * created.
1094 * @msg contains the message structure to be modified.
1095 * Return 0 if operation was successful and permission is granted.
1096 * @msg_msg_free_security:
1097 * Deallocate the security structure for this message.
1098 * @msg contains the message structure to be modified.
1099 *
1100 * Security hooks for System V IPC Message Queues
1101 *
1102 * @msg_queue_alloc_security:
1103 * Allocate and attach a security structure to the
1104 * msq->q_perm.security field. The security field is initialized to
1105 * NULL when the structure is first created.
1106 * @msq contains the message queue structure to be modified.
1107 * Return 0 if operation was successful and permission is granted.
1108 * @msg_queue_free_security:
1109 * Deallocate security structure for this message queue.
1110 * @msq contains the message queue structure to be modified.
1111 * @msg_queue_associate:
1112 * Check permission when a message queue is requested through the
1113 * msgget system call. This hook is only called when returning the
1114 * message queue identifier for an existing message queue, not when a
1115 * new message queue is created.
1116 * @msq contains the message queue to act upon.
1117 * @msqflg contains the operation control flags.
1118 * Return 0 if permission is granted.
1119 * @msg_queue_msgctl:
1120 * Check permission when a message control operation specified by @cmd
1121 * is to be performed on the message queue @msq.
1122 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1123 * @msq contains the message queue to act upon. May be NULL.
1124 * @cmd contains the operation to be performed.
Eric Paris7b41b172008-04-23 14:10:25 -04001125 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 * @msg_queue_msgsnd:
1127 * Check permission before a message, @msg, is enqueued on the message
1128 * queue, @msq.
1129 * @msq contains the message queue to send message to.
1130 * @msg contains the message to be enqueued.
1131 * @msqflg contains operational flags.
1132 * Return 0 if permission is granted.
1133 * @msg_queue_msgrcv:
1134 * Check permission before a message, @msg, is removed from the message
Eric Paris7b41b172008-04-23 14:10:25 -04001135 * queue, @msq. The @target task structure contains a pointer to the
1136 * process that will be receiving the message (not equal to the current
Linus Torvalds1da177e2005-04-16 15:20:36 -07001137 * process when inline receives are being performed).
1138 * @msq contains the message queue to retrieve message from.
1139 * @msg contains the message destination.
1140 * @target contains the task structure for recipient process.
1141 * @type contains the type of message requested.
1142 * @mode contains the operational flags.
1143 * Return 0 if permission is granted.
1144 *
1145 * Security hooks for System V Shared Memory Segments
1146 *
1147 * @shm_alloc_security:
1148 * Allocate and attach a security structure to the shp->shm_perm.security
1149 * field. The security field is initialized to NULL when the structure is
1150 * first created.
1151 * @shp contains the shared memory structure to be modified.
1152 * Return 0 if operation was successful and permission is granted.
1153 * @shm_free_security:
1154 * Deallocate the security struct for this memory segment.
1155 * @shp contains the shared memory structure to be modified.
1156 * @shm_associate:
1157 * Check permission when a shared memory region is requested through the
1158 * shmget system call. This hook is only called when returning the shared
1159 * memory region identifier for an existing region, not when a new shared
1160 * memory region is created.
1161 * @shp contains the shared memory structure to be modified.
1162 * @shmflg contains the operation control flags.
1163 * Return 0 if permission is granted.
1164 * @shm_shmctl:
1165 * Check permission when a shared memory control operation specified by
1166 * @cmd is to be performed on the shared memory region @shp.
1167 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1168 * @shp contains shared memory structure to be modified.
1169 * @cmd contains the operation to be performed.
1170 * Return 0 if permission is granted.
1171 * @shm_shmat:
1172 * Check permissions prior to allowing the shmat system call to attach the
1173 * shared memory segment @shp to the data segment of the calling process.
1174 * The attaching address is specified by @shmaddr.
1175 * @shp contains the shared memory structure to be modified.
1176 * @shmaddr contains the address to attach memory region to.
1177 * @shmflg contains the operational flags.
1178 * Return 0 if permission is granted.
1179 *
1180 * Security hooks for System V Semaphores
1181 *
1182 * @sem_alloc_security:
1183 * Allocate and attach a security structure to the sma->sem_perm.security
1184 * field. The security field is initialized to NULL when the structure is
1185 * first created.
1186 * @sma contains the semaphore structure
1187 * Return 0 if operation was successful and permission is granted.
1188 * @sem_free_security:
1189 * deallocate security struct for this semaphore
1190 * @sma contains the semaphore structure.
1191 * @sem_associate:
1192 * Check permission when a semaphore is requested through the semget
1193 * system call. This hook is only called when returning the semaphore
1194 * identifier for an existing semaphore, not when a new one must be
1195 * created.
1196 * @sma contains the semaphore structure.
1197 * @semflg contains the operation control flags.
1198 * Return 0 if permission is granted.
1199 * @sem_semctl:
1200 * Check permission when a semaphore operation specified by @cmd is to be
Eric Paris7b41b172008-04-23 14:10:25 -04001201 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202 * IPC_INFO or SEM_INFO.
1203 * @sma contains the semaphore structure. May be NULL.
1204 * @cmd contains the operation to be performed.
1205 * Return 0 if permission is granted.
1206 * @sem_semop
1207 * Check permissions before performing operations on members of the
Eric Paris7b41b172008-04-23 14:10:25 -04001208 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1209 * may be modified.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210 * @sma contains the semaphore structure.
1211 * @sops contains the operations to perform.
1212 * @nsops contains the number of operations to perform.
1213 * @alter contains the flag indicating whether changes are to be made.
1214 * Return 0 if permission is granted.
1215 *
Ingo Molnar9e488582009-05-07 19:26:19 +10001216 * @ptrace_access_check:
David Howells5cd9c582008-08-14 11:37:28 +01001217 * Check permission before allowing the current process to trace the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 * @child process.
1219 * Security modules may also want to perform a process tracing check
1220 * during an execve in the set_security or apply_creds hooks of
David Howellsd84f4f92008-11-14 10:39:23 +11001221 * tracing check during an execve in the bprm_set_creds hook of
Linus Torvalds1da177e2005-04-16 15:20:36 -07001222 * binprm_security_ops if the process is being traced and its security
1223 * attributes would be changed by the execve.
David Howells5cd9c582008-08-14 11:37:28 +01001224 * @child contains the task_struct structure for the target process.
Stephen Smalley006ebb42008-05-19 08:32:49 -04001225 * @mode contains the PTRACE_MODE flags indicating the form of access.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226 * Return 0 if permission is granted.
David Howells5cd9c582008-08-14 11:37:28 +01001227 * @ptrace_traceme:
1228 * Check that the @parent process has sufficient permission to trace the
1229 * current process before allowing the current process to present itself
1230 * to the @parent process for tracing.
Ingo Molnar9e488582009-05-07 19:26:19 +10001231 * The parent process will still have to undergo the ptrace_access_check
David Howells5cd9c582008-08-14 11:37:28 +01001232 * checks before it is allowed to trace this one.
1233 * @parent contains the task_struct structure for debugger process.
1234 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 * @capget:
1236 * Get the @effective, @inheritable, and @permitted capability sets for
1237 * the @target process. The hook may also perform permission checking to
1238 * determine if the current process is allowed to see the capability sets
1239 * of the @target process.
1240 * @target contains the task_struct structure for target process.
1241 * @effective contains the effective capability set.
1242 * @inheritable contains the inheritable capability set.
1243 * @permitted contains the permitted capability set.
1244 * Return 0 if the capability sets were successfully obtained.
David Howellsd84f4f92008-11-14 10:39:23 +11001245 * @capset:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246 * Set the @effective, @inheritable, and @permitted capability sets for
David Howells1cdcbec2008-11-14 10:39:14 +11001247 * the current process.
David Howellsd84f4f92008-11-14 10:39:23 +11001248 * @new contains the new credentials structure for target process.
1249 * @old contains the current credentials structure for target process.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250 * @effective contains the effective capability set.
1251 * @inheritable contains the inheritable capability set.
1252 * @permitted contains the permitted capability set.
David Howellsd84f4f92008-11-14 10:39:23 +11001253 * Return 0 and update @new if permission is granted.
Chris Wright12b59892006-03-25 03:07:41 -08001254 * @capable:
David Howells3699c532009-01-06 22:27:01 +00001255 * Check whether the @tsk process has the @cap capability in the indicated
1256 * credentials.
Chris Wright12b59892006-03-25 03:07:41 -08001257 * @tsk contains the task_struct for the process.
David Howells3699c532009-01-06 22:27:01 +00001258 * @cred contains the credentials to use.
Chris Wright12b59892006-03-25 03:07:41 -08001259 * @cap contains the capability <include/linux/capability.h>.
David Howells3699c532009-01-06 22:27:01 +00001260 * @audit: Whether to write an audit message or not
Chris Wright12b59892006-03-25 03:07:41 -08001261 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262 * @sysctl:
1263 * Check permission before accessing the @table sysctl variable in the
1264 * manner specified by @op.
1265 * @table contains the ctl_table structure for the sysctl variable.
1266 * @op contains the operation (001 = search, 002 = write, 004 = read).
1267 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268 * @syslog:
1269 * Check permission before accessing the kernel message ring or changing
1270 * logging to the console.
Eric Paris7b41b172008-04-23 14:10:25 -04001271 * See the syslog(2) manual page for an explanation of the @type values.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 * @type contains the type of action.
Kees Cook00234592010-02-03 15:36:43 -08001273 * @from_file indicates the context of action (if it came from /proc).
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 * Return 0 if permission is granted.
1275 * @settime:
1276 * Check permission to change the system time.
1277 * struct timespec and timezone are defined in include/linux/time.h
1278 * @ts contains new time
1279 * @tz contains new timezone
1280 * Return 0 if permission is granted.
1281 * @vm_enough_memory:
1282 * Check permissions for allocating a new virtual mapping.
Alan Cox34b4e4a2007-08-22 14:01:28 -07001283 * @mm contains the mm struct it is being added to.
Eric Paris7b41b172008-04-23 14:10:25 -04001284 * @pages contains the number of pages.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285 * Return 0 if permission is granted.
1286 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001287 * @secid_to_secctx:
Eric Parisd5630b92010-10-13 16:24:48 -04001288 * Convert secid to security context. If secdata is NULL the length of
1289 * the result will be returned in seclen, but no secdata will be returned.
1290 * This does mean that the length could change between calls to check the
1291 * length and the next call which actually allocates and returns the secdata.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001292 * @secid contains the security ID.
1293 * @secdata contains the pointer that stores the converted security context.
Eric Parisd5630b92010-10-13 16:24:48 -04001294 * @seclen pointer which contains the length of the data
David Howells63cb3442008-01-15 23:47:35 +00001295 * @secctx_to_secid:
Eric Paris7b41b172008-04-23 14:10:25 -04001296 * Convert security context to secid.
1297 * @secid contains the pointer to the generated security ID.
1298 * @secdata contains the security context.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001299 *
1300 * @release_secctx:
1301 * Release the security context.
1302 * @secdata contains the security context.
1303 * @seclen contains the length of the security context.
1304 *
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001305 * Security hooks for Audit
1306 *
1307 * @audit_rule_init:
1308 * Allocate and initialize an LSM audit rule structure.
1309 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1310 * @op contains the operator the rule uses.
1311 * @rulestr contains the context where the rule will be applied to.
1312 * @lsmrule contains a pointer to receive the result.
1313 * Return 0 if @lsmrule has been successfully set,
1314 * -EINVAL in case of an invalid rule.
1315 *
1316 * @audit_rule_known:
1317 * Specifies whether given @rule contains any fields related to current LSM.
1318 * @rule contains the audit rule of interest.
1319 * Return 1 in case of relation found, 0 otherwise.
1320 *
1321 * @audit_rule_match:
1322 * Determine if given @secid matches a rule previously approved
1323 * by @audit_rule_known.
1324 * @secid contains the security id in question.
1325 * @field contains the field which relates to current LSM.
1326 * @op contains the operator that will be used for matching.
1327 * @rule points to the audit rule that will be checked against.
1328 * @actx points to the audit context associated with the check.
1329 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1330 *
1331 * @audit_rule_free:
1332 * Deallocate the LSM audit rule structure previously allocated by
1333 * audit_rule_init.
1334 * @rule contains the allocated rule
1335 *
David P. Quigley1ee65e32009-09-03 14:25:57 -04001336 * @inode_notifysecctx:
1337 * Notify the security module of what the security context of an inode
1338 * should be. Initializes the incore security context managed by the
1339 * security module for this inode. Example usage: NFS client invokes
1340 * this hook to initialize the security context in its incore inode to the
1341 * value provided by the server for the file when the server returned the
1342 * file's attributes to the client.
1343 *
1344 * Must be called with inode->i_mutex locked.
1345 *
1346 * @inode we wish to set the security context of.
1347 * @ctx contains the string which we wish to set in the inode.
1348 * @ctxlen contains the length of @ctx.
1349 *
1350 * @inode_setsecctx:
1351 * Change the security context of an inode. Updates the
1352 * incore security context managed by the security module and invokes the
1353 * fs code as needed (via __vfs_setxattr_noperm) to update any backing
1354 * xattrs that represent the context. Example usage: NFS server invokes
1355 * this hook to change the security context in its incore inode and on the
1356 * backing filesystem to a value provided by the client on a SETATTR
1357 * operation.
1358 *
1359 * Must be called with inode->i_mutex locked.
1360 *
1361 * @dentry contains the inode we wish to set the security context of.
1362 * @ctx contains the string which we wish to set in the inode.
1363 * @ctxlen contains the length of @ctx.
1364 *
1365 * @inode_getsecctx:
1366 * Returns a string containing all relavent security context information
1367 *
1368 * @inode we wish to set the security context of.
1369 * @ctx is a pointer in which to place the allocated security context.
1370 * @ctxlen points to the place to put the length of @ctx.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371 * This is the main security structure.
1372 */
1373struct security_operations {
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001374 char name[SECURITY_NAME_MAX + 1];
1375
Ingo Molnar9e488582009-05-07 19:26:19 +10001376 int (*ptrace_access_check) (struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001377 int (*ptrace_traceme) (struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -04001378 int (*capget) (struct task_struct *target,
1379 kernel_cap_t *effective,
1380 kernel_cap_t *inheritable, kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001381 int (*capset) (struct cred *new,
1382 const struct cred *old,
1383 const kernel_cap_t *effective,
1384 const kernel_cap_t *inheritable,
1385 const kernel_cap_t *permitted);
David Howells3699c532009-01-06 22:27:01 +00001386 int (*capable) (struct task_struct *tsk, const struct cred *cred,
1387 int cap, int audit);
Eric Paris7b41b172008-04-23 14:10:25 -04001388 int (*sysctl) (struct ctl_table *table, int op);
1389 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1390 int (*quota_on) (struct dentry *dentry);
Kees Cook00234592010-02-03 15:36:43 -08001391 int (*syslog) (int type, bool from_file);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392 int (*settime) (struct timespec *ts, struct timezone *tz);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001393 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394
David Howellsa6f76f22008-11-14 10:39:24 +11001395 int (*bprm_set_creds) (struct linux_binprm *bprm);
Eric Paris7b41b172008-04-23 14:10:25 -04001396 int (*bprm_check_security) (struct linux_binprm *bprm);
1397 int (*bprm_secureexec) (struct linux_binprm *bprm);
David Howellsa6f76f22008-11-14 10:39:24 +11001398 void (*bprm_committing_creds) (struct linux_binprm *bprm);
1399 void (*bprm_committed_creds) (struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400
Eric Paris7b41b172008-04-23 14:10:25 -04001401 int (*sb_alloc_security) (struct super_block *sb);
1402 void (*sb_free_security) (struct super_block *sb);
1403 int (*sb_copy_data) (char *orig, char *copy);
James Morris12204e22008-12-19 10:44:42 +11001404 int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001405 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
David Howells726c3342006-06-23 02:02:58 -07001406 int (*sb_statfs) (struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001407 int (*sb_mount) (char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408 char *type, unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001409 int (*sb_umount) (struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001410 int (*sb_pivotroot) (struct path *old_path,
1411 struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001412 int (*sb_set_mnt_opts) (struct super_block *sb,
1413 struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001414 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1415 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001416 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001418#ifdef CONFIG_SECURITY_PATH
1419 int (*path_unlink) (struct path *dir, struct dentry *dentry);
1420 int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode);
1421 int (*path_rmdir) (struct path *dir, struct dentry *dentry);
1422 int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode,
1423 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09001424 int (*path_truncate) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001425 int (*path_symlink) (struct path *dir, struct dentry *dentry,
1426 const char *old_name);
1427 int (*path_link) (struct dentry *old_dentry, struct path *new_dir,
1428 struct dentry *new_dentry);
1429 int (*path_rename) (struct path *old_dir, struct dentry *old_dentry,
1430 struct path *new_dir, struct dentry *new_dentry);
Tetsuo Handa89eda062009-10-04 21:49:47 +09001431 int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt,
1432 mode_t mode);
1433 int (*path_chown) (struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09001434 int (*path_chroot) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001435#endif
1436
Eric Paris7b41b172008-04-23 14:10:25 -04001437 int (*inode_alloc_security) (struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001439 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1440 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441 int (*inode_create) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001442 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 int (*inode_link) (struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001444 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1446 int (*inode_symlink) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001447 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1450 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001451 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001452 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001453 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454 int (*inode_readlink) (struct dentry *dentry);
1455 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001456 int (*inode_permission) (struct inode *inode, int mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1458 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001459 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1460 const void *value, size_t size, int flags);
1461 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1462 const void *value, size_t size, int flags);
1463 int (*inode_getxattr) (struct dentry *dentry, const char *name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464 int (*inode_listxattr) (struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001465 int (*inode_removexattr) (struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001466 int (*inode_need_killpriv) (struct dentry *dentry);
1467 int (*inode_killpriv) (struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001468 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1469 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1470 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1471 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472
Eric Paris7b41b172008-04-23 14:10:25 -04001473 int (*file_permission) (struct file *file, int mask);
1474 int (*file_alloc_security) (struct file *file);
1475 void (*file_free_security) (struct file *file);
1476 int (*file_ioctl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001478 int (*file_mmap) (struct file *file,
Eric Parised032182007-06-28 15:55:21 -04001479 unsigned long reqprot, unsigned long prot,
1480 unsigned long flags, unsigned long addr,
1481 unsigned long addr_only);
Eric Paris7b41b172008-04-23 14:10:25 -04001482 int (*file_mprotect) (struct vm_area_struct *vma,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483 unsigned long reqprot,
1484 unsigned long prot);
Eric Paris7b41b172008-04-23 14:10:25 -04001485 int (*file_lock) (struct file *file, unsigned int cmd);
1486 int (*file_fcntl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001488 int (*file_set_fowner) (struct file *file);
1489 int (*file_send_sigiotask) (struct task_struct *tsk,
1490 struct fown_struct *fown, int sig);
1491 int (*file_receive) (struct file *file);
David Howells745ca242008-11-14 10:39:22 +11001492 int (*dentry_open) (struct file *file, const struct cred *cred);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493
1494 int (*task_create) (unsigned long clone_flags);
David Howellsee18d642009-09-02 09:14:21 +01001495 int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001496 void (*cred_free) (struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001497 int (*cred_prepare)(struct cred *new, const struct cred *old,
1498 gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001499 void (*cred_transfer)(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001500 int (*kernel_act_as)(struct cred *new, u32 secid);
1501 int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001502 int (*kernel_module_request)(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001503 int (*task_fix_setuid) (struct cred *new, const struct cred *old,
1504 int flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001505 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1506 int (*task_getpgid) (struct task_struct *p);
1507 int (*task_getsid) (struct task_struct *p);
1508 void (*task_getsecid) (struct task_struct *p, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001509 int (*task_setnice) (struct task_struct *p, int nice);
1510 int (*task_setioprio) (struct task_struct *p, int ioprio);
1511 int (*task_getioprio) (struct task_struct *p);
Jiri Slaby8fd00b42009-08-26 18:41:16 +02001512 int (*task_setrlimit) (struct task_struct *p, unsigned int resource,
1513 struct rlimit *new_rlim);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09001514 int (*task_setscheduler) (struct task_struct *p);
Eric Paris7b41b172008-04-23 14:10:25 -04001515 int (*task_getscheduler) (struct task_struct *p);
1516 int (*task_movememory) (struct task_struct *p);
1517 int (*task_kill) (struct task_struct *p,
1518 struct siginfo *info, int sig, u32 secid);
1519 int (*task_wait) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520 int (*task_prctl) (int option, unsigned long arg2,
1521 unsigned long arg3, unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11001522 unsigned long arg5);
Eric Paris7b41b172008-04-23 14:10:25 -04001523 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001524
Eric Paris7b41b172008-04-23 14:10:25 -04001525 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001526 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527
Eric Paris7b41b172008-04-23 14:10:25 -04001528 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1529 void (*msg_msg_free_security) (struct msg_msg *msg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530
Eric Paris7b41b172008-04-23 14:10:25 -04001531 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1532 void (*msg_queue_free_security) (struct msg_queue *msq);
1533 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1534 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1535 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1536 struct msg_msg *msg, int msqflg);
1537 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1538 struct msg_msg *msg,
1539 struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540 long type, int mode);
1541
Eric Paris7b41b172008-04-23 14:10:25 -04001542 int (*shm_alloc_security) (struct shmid_kernel *shp);
1543 void (*shm_free_security) (struct shmid_kernel *shp);
1544 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1545 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1546 int (*shm_shmat) (struct shmid_kernel *shp,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001547 char __user *shmaddr, int shmflg);
1548
Eric Paris7b41b172008-04-23 14:10:25 -04001549 int (*sem_alloc_security) (struct sem_array *sma);
1550 void (*sem_free_security) (struct sem_array *sma);
1551 int (*sem_associate) (struct sem_array *sma, int semflg);
1552 int (*sem_semctl) (struct sem_array *sma, int cmd);
1553 int (*sem_semop) (struct sem_array *sma,
1554 struct sembuf *sops, unsigned nsops, int alter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001555
Eric Paris7b41b172008-04-23 14:10:25 -04001556 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1557 int (*netlink_recv) (struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001558
Linus Torvalds1da177e2005-04-16 15:20:36 -07001559 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1560
Eric Paris7b41b172008-04-23 14:10:25 -04001561 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1562 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1563 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001564 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001565 void (*release_secctx) (char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566
David P. Quigley1ee65e32009-09-03 14:25:57 -04001567 int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen);
1568 int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen);
1569 int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen);
1570
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571#ifdef CONFIG_SECURITY_NETWORK
Eric Paris7b41b172008-04-23 14:10:25 -04001572 int (*unix_stream_connect) (struct socket *sock,
1573 struct socket *other, struct sock *newsk);
1574 int (*unix_may_send) (struct socket *sock, struct socket *other);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575
1576 int (*socket_create) (int family, int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001577 int (*socket_post_create) (struct socket *sock, int family,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001578 int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001579 int (*socket_bind) (struct socket *sock,
1580 struct sockaddr *address, int addrlen);
1581 int (*socket_connect) (struct socket *sock,
1582 struct sockaddr *address, int addrlen);
1583 int (*socket_listen) (struct socket *sock, int backlog);
1584 int (*socket_accept) (struct socket *sock, struct socket *newsock);
Eric Paris7b41b172008-04-23 14:10:25 -04001585 int (*socket_sendmsg) (struct socket *sock,
1586 struct msghdr *msg, int size);
1587 int (*socket_recvmsg) (struct socket *sock,
1588 struct msghdr *msg, int size, int flags);
1589 int (*socket_getsockname) (struct socket *sock);
1590 int (*socket_getpeername) (struct socket *sock);
1591 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1592 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1593 int (*socket_shutdown) (struct socket *sock, int how);
1594 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001595 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001596 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001597 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001599 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001600 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001601 void (*sock_graft) (struct sock *sk, struct socket *parent);
1602 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1603 struct request_sock *req);
1604 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1605 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
Eric Paris2606fd12010-10-13 16:24:41 -04001606 int (*secmark_relabel_packet) (u32 secid);
1607 void (*secmark_refcount_inc) (void);
1608 void (*secmark_refcount_dec) (void);
Eric Paris7b41b172008-04-23 14:10:25 -04001609 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
Paul Moore2b980db2009-08-28 18:12:43 -04001610 int (*tun_dev_create)(void);
1611 void (*tun_dev_post_create)(struct sock *sk);
1612 int (*tun_dev_attach)(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001614
Trent Jaegerdf718372005-12-13 23:12:27 -08001615#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moore03e1ad72008-04-12 19:07:52 -07001616 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001617 struct xfrm_user_sec_ctx *sec_ctx);
Paul Moore03e1ad72008-04-12 19:07:52 -07001618 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1619 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1620 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001621 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001622 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001623 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001624 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001625 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Eric Paris7b41b172008-04-23 14:10:25 -04001626 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1627 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1628 struct xfrm_policy *xp,
1629 struct flowi *fl);
1630 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001631#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1632
David Howells29db9192005-10-30 15:02:44 -08001633 /* key management security hooks */
1634#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +11001635 int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001636 void (*key_free) (struct key *key);
1637 int (*key_permission) (key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11001638 const struct cred *cred,
Eric Paris7b41b172008-04-23 14:10:25 -04001639 key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07001640 int (*key_getsecurity)(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08001641#endif /* CONFIG_KEYS */
1642
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001643#ifdef CONFIG_AUDIT
Eric Paris7b41b172008-04-23 14:10:25 -04001644 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1645 int (*audit_rule_known) (struct audit_krule *krule);
1646 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1647 struct audit_context *actx);
1648 void (*audit_rule_free) (void *lsmrule);
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001649#endif /* CONFIG_AUDIT */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001650};
1651
Linus Torvalds1da177e2005-04-16 15:20:36 -07001652/* prototypes */
Eric Paris7b41b172008-04-23 14:10:25 -04001653extern int security_init(void);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001654extern int security_module_enable(struct security_operations *ops);
Eric Paris7b41b172008-04-23 14:10:25 -04001655extern int register_security(struct security_operations *ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001656
James Morris20510f22007-10-16 23:31:32 -07001657/* Security operations */
Ingo Molnar9e488582009-05-07 19:26:19 +10001658int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001659int security_ptrace_traceme(struct task_struct *parent);
James Morris20510f22007-10-16 23:31:32 -07001660int security_capget(struct task_struct *target,
Eric Paris7b41b172008-04-23 14:10:25 -04001661 kernel_cap_t *effective,
1662 kernel_cap_t *inheritable,
1663 kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001664int security_capset(struct cred *new, const struct cred *old,
1665 const kernel_cap_t *effective,
1666 const kernel_cap_t *inheritable,
1667 const kernel_cap_t *permitted);
David Howells3699c532009-01-06 22:27:01 +00001668int security_capable(int cap);
1669int security_real_capable(struct task_struct *tsk, int cap);
1670int security_real_capable_noaudit(struct task_struct *tsk, int cap);
James Morris20510f22007-10-16 23:31:32 -07001671int security_sysctl(struct ctl_table *table, int op);
1672int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1673int security_quota_on(struct dentry *dentry);
Kees Cook00234592010-02-03 15:36:43 -08001674int security_syslog(int type, bool from_file);
James Morris20510f22007-10-16 23:31:32 -07001675int security_settime(struct timespec *ts, struct timezone *tz);
1676int security_vm_enough_memory(long pages);
1677int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
Alan Cox731572d2008-10-29 14:01:20 -07001678int security_vm_enough_memory_kern(long pages);
David Howellsa6f76f22008-11-14 10:39:24 +11001679int security_bprm_set_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001680int security_bprm_check(struct linux_binprm *bprm);
David Howellsa6f76f22008-11-14 10:39:24 +11001681void security_bprm_committing_creds(struct linux_binprm *bprm);
1682void security_bprm_committed_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001683int security_bprm_secureexec(struct linux_binprm *bprm);
1684int security_sb_alloc(struct super_block *sb);
1685void security_sb_free(struct super_block *sb);
Eric Parise0007522008-03-05 10:31:54 -05001686int security_sb_copy_data(char *orig, char *copy);
James Morris12204e22008-12-19 10:44:42 +11001687int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001688int security_sb_show_options(struct seq_file *m, struct super_block *sb);
James Morris20510f22007-10-16 23:31:32 -07001689int security_sb_statfs(struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001690int security_sb_mount(char *dev_name, struct path *path,
Eric Paris7b41b172008-04-23 14:10:25 -04001691 char *type, unsigned long flags, void *data);
James Morris20510f22007-10-16 23:31:32 -07001692int security_sb_umount(struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001693int security_sb_pivotroot(struct path *old_path, struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001694int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001695void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1696 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001697int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001698
James Morris20510f22007-10-16 23:31:32 -07001699int security_inode_alloc(struct inode *inode);
1700void security_inode_free(struct inode *inode);
1701int security_inode_init_security(struct inode *inode, struct inode *dir,
1702 char **name, void **value, size_t *len);
1703int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1704int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1705 struct dentry *new_dentry);
1706int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1707int security_inode_symlink(struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001708 const char *old_name);
James Morris20510f22007-10-16 23:31:32 -07001709int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1710int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1711int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1712int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001713 struct inode *new_dir, struct dentry *new_dentry);
James Morris20510f22007-10-16 23:31:32 -07001714int security_inode_readlink(struct dentry *dentry);
1715int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001716int security_inode_permission(struct inode *inode, int mask);
James Morris20510f22007-10-16 23:31:32 -07001717int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1718int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001719int security_inode_setxattr(struct dentry *dentry, const char *name,
1720 const void *value, size_t size, int flags);
1721void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1722 const void *value, size_t size, int flags);
1723int security_inode_getxattr(struct dentry *dentry, const char *name);
James Morris20510f22007-10-16 23:31:32 -07001724int security_inode_listxattr(struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001725int security_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001726int security_inode_need_killpriv(struct dentry *dentry);
1727int security_inode_killpriv(struct dentry *dentry);
David P. Quigley42492592008-02-04 22:29:39 -08001728int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
James Morris20510f22007-10-16 23:31:32 -07001729int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1730int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001731void security_inode_getsecid(const struct inode *inode, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001732int security_file_permission(struct file *file, int mask);
1733int security_file_alloc(struct file *file);
1734void security_file_free(struct file *file);
1735int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1736int security_file_mmap(struct file *file, unsigned long reqprot,
1737 unsigned long prot, unsigned long flags,
1738 unsigned long addr, unsigned long addr_only);
1739int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
Eric Paris7b41b172008-04-23 14:10:25 -04001740 unsigned long prot);
James Morris20510f22007-10-16 23:31:32 -07001741int security_file_lock(struct file *file, unsigned int cmd);
1742int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1743int security_file_set_fowner(struct file *file);
1744int security_file_send_sigiotask(struct task_struct *tsk,
Eric Paris7b41b172008-04-23 14:10:25 -04001745 struct fown_struct *fown, int sig);
James Morris20510f22007-10-16 23:31:32 -07001746int security_file_receive(struct file *file);
David Howells745ca242008-11-14 10:39:22 +11001747int security_dentry_open(struct file *file, const struct cred *cred);
James Morris20510f22007-10-16 23:31:32 -07001748int security_task_create(unsigned long clone_flags);
David Howellsee18d642009-09-02 09:14:21 +01001749int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001750void security_cred_free(struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001751int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001752void security_transfer_creds(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001753int security_kernel_act_as(struct cred *new, u32 secid);
1754int security_kernel_create_files_as(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001755int security_kernel_module_request(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001756int security_task_fix_setuid(struct cred *new, const struct cred *old,
1757 int flags);
James Morris20510f22007-10-16 23:31:32 -07001758int security_task_setpgid(struct task_struct *p, pid_t pgid);
1759int security_task_getpgid(struct task_struct *p);
1760int security_task_getsid(struct task_struct *p);
1761void security_task_getsecid(struct task_struct *p, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001762int security_task_setnice(struct task_struct *p, int nice);
1763int security_task_setioprio(struct task_struct *p, int ioprio);
1764int security_task_getioprio(struct task_struct *p);
Jiri Slaby8fd00b42009-08-26 18:41:16 +02001765int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1766 struct rlimit *new_rlim);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09001767int security_task_setscheduler(struct task_struct *p);
James Morris20510f22007-10-16 23:31:32 -07001768int security_task_getscheduler(struct task_struct *p);
1769int security_task_movememory(struct task_struct *p);
1770int security_task_kill(struct task_struct *p, struct siginfo *info,
1771 int sig, u32 secid);
1772int security_task_wait(struct task_struct *p);
1773int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +11001774 unsigned long arg4, unsigned long arg5);
James Morris20510f22007-10-16 23:31:32 -07001775void security_task_to_inode(struct task_struct *p, struct inode *inode);
1776int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001777void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001778int security_msg_msg_alloc(struct msg_msg *msg);
1779void security_msg_msg_free(struct msg_msg *msg);
1780int security_msg_queue_alloc(struct msg_queue *msq);
1781void security_msg_queue_free(struct msg_queue *msq);
1782int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1783int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1784int security_msg_queue_msgsnd(struct msg_queue *msq,
Eric Paris7b41b172008-04-23 14:10:25 -04001785 struct msg_msg *msg, int msqflg);
James Morris20510f22007-10-16 23:31:32 -07001786int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
Eric Paris7b41b172008-04-23 14:10:25 -04001787 struct task_struct *target, long type, int mode);
James Morris20510f22007-10-16 23:31:32 -07001788int security_shm_alloc(struct shmid_kernel *shp);
1789void security_shm_free(struct shmid_kernel *shp);
1790int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1791int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1792int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1793int security_sem_alloc(struct sem_array *sma);
1794void security_sem_free(struct sem_array *sma);
1795int security_sem_associate(struct sem_array *sma, int semflg);
1796int security_sem_semctl(struct sem_array *sma, int cmd);
1797int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1798 unsigned nsops, int alter);
Eric Paris7b41b172008-04-23 14:10:25 -04001799void security_d_instantiate(struct dentry *dentry, struct inode *inode);
James Morris20510f22007-10-16 23:31:32 -07001800int security_getprocattr(struct task_struct *p, char *name, char **value);
1801int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1802int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1803int security_netlink_recv(struct sk_buff *skb, int cap);
1804int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001805int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001806void security_release_secctx(char *secdata, u32 seclen);
1807
David P. Quigley1ee65e32009-09-03 14:25:57 -04001808int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
1809int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
1810int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001811#else /* CONFIG_SECURITY */
Eric Parise0007522008-03-05 10:31:54 -05001812struct security_mnt_opts {
1813};
1814
1815static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1816{
1817}
1818
1819static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1820{
1821}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822
1823/*
1824 * This is the default capabilities functionality. Most of these functions
1825 * are just stubbed out, but a few must call the proper capable code.
1826 */
1827
1828static inline int security_init(void)
1829{
1830 return 0;
1831}
1832
Ingo Molnar9e488582009-05-07 19:26:19 +10001833static inline int security_ptrace_access_check(struct task_struct *child,
David Howells5cd9c582008-08-14 11:37:28 +01001834 unsigned int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001835{
Ingo Molnar9e488582009-05-07 19:26:19 +10001836 return cap_ptrace_access_check(child, mode);
David Howells5cd9c582008-08-14 11:37:28 +01001837}
1838
Alexander Beregalov5e186b52008-08-17 05:34:20 +04001839static inline int security_ptrace_traceme(struct task_struct *parent)
David Howells5cd9c582008-08-14 11:37:28 +01001840{
1841 return cap_ptrace_traceme(parent);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842}
1843
Eric Paris7b41b172008-04-23 14:10:25 -04001844static inline int security_capget(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845 kernel_cap_t *effective,
1846 kernel_cap_t *inheritable,
1847 kernel_cap_t *permitted)
1848{
Eric Paris7b41b172008-04-23 14:10:25 -04001849 return cap_capget(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850}
1851
David Howellsd84f4f92008-11-14 10:39:23 +11001852static inline int security_capset(struct cred *new,
1853 const struct cred *old,
1854 const kernel_cap_t *effective,
1855 const kernel_cap_t *inheritable,
1856 const kernel_cap_t *permitted)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857{
David Howellsd84f4f92008-11-14 10:39:23 +11001858 return cap_capset(new, old, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859}
1860
David Howells3699c532009-01-06 22:27:01 +00001861static inline int security_capable(int cap)
Chris Wright12b59892006-03-25 03:07:41 -08001862{
David Howells3699c532009-01-06 22:27:01 +00001863 return cap_capable(current, current_cred(), cap, SECURITY_CAP_AUDIT);
Eric Paris06112162008-11-11 22:02:50 +11001864}
1865
David Howells3699c532009-01-06 22:27:01 +00001866static inline int security_real_capable(struct task_struct *tsk, int cap)
Eric Paris06112162008-11-11 22:02:50 +11001867{
David Howells3699c532009-01-06 22:27:01 +00001868 int ret;
1869
1870 rcu_read_lock();
1871 ret = cap_capable(tsk, __task_cred(tsk), cap, SECURITY_CAP_AUDIT);
1872 rcu_read_unlock();
1873 return ret;
1874}
1875
1876static inline
1877int security_real_capable_noaudit(struct task_struct *tsk, int cap)
1878{
1879 int ret;
1880
1881 rcu_read_lock();
1882 ret = cap_capable(tsk, __task_cred(tsk), cap,
1883 SECURITY_CAP_NOAUDIT);
1884 rcu_read_unlock();
1885 return ret;
Chris Wright12b59892006-03-25 03:07:41 -08001886}
1887
Linus Torvalds1da177e2005-04-16 15:20:36 -07001888static inline int security_sysctl(struct ctl_table *table, int op)
1889{
1890 return 0;
1891}
1892
Eric Paris7b41b172008-04-23 14:10:25 -04001893static inline int security_quotactl(int cmds, int type, int id,
1894 struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001895{
1896 return 0;
1897}
1898
Eric Paris7b41b172008-04-23 14:10:25 -04001899static inline int security_quota_on(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001900{
1901 return 0;
1902}
1903
Kees Cook00234592010-02-03 15:36:43 -08001904static inline int security_syslog(int type, bool from_file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905{
Kees Cook00234592010-02-03 15:36:43 -08001906 return cap_syslog(type, from_file);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001907}
1908
1909static inline int security_settime(struct timespec *ts, struct timezone *tz)
1910{
1911 return cap_settime(ts, tz);
1912}
1913
1914static inline int security_vm_enough_memory(long pages)
1915{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001916 WARN_ON(current->mm == NULL);
Alan Cox731572d2008-10-29 14:01:20 -07001917 return cap_vm_enough_memory(current->mm, pages);
1918}
1919
Alan Cox34b4e4a2007-08-22 14:01:28 -07001920static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1921{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001922 WARN_ON(mm == NULL);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001923 return cap_vm_enough_memory(mm, pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001924}
1925
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001926static inline int security_vm_enough_memory_kern(long pages)
1927{
1928 /* If current->mm is a kernel thread then we will pass NULL,
1929 for this specific case that is fine */
1930 return cap_vm_enough_memory(current->mm, pages);
1931}
1932
David Howellsa6f76f22008-11-14 10:39:24 +11001933static inline int security_bprm_set_creds(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001934{
David Howellsa6f76f22008-11-14 10:39:24 +11001935 return cap_bprm_set_creds(bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001936}
1937
Eric Paris7b41b172008-04-23 14:10:25 -04001938static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001939{
1940 return 0;
1941}
1942
David Howellsa6f76f22008-11-14 10:39:24 +11001943static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
1944{
1945}
1946
1947static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
1948{
1949}
1950
Eric Paris7b41b172008-04-23 14:10:25 -04001951static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001952{
1953 return cap_bprm_secureexec(bprm);
1954}
1955
Eric Paris7b41b172008-04-23 14:10:25 -04001956static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957{
1958 return 0;
1959}
1960
Eric Paris7b41b172008-04-23 14:10:25 -04001961static inline void security_sb_free(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001962{ }
1963
Eric Paris7b41b172008-04-23 14:10:25 -04001964static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965{
1966 return 0;
1967}
1968
James Morris12204e22008-12-19 10:44:42 +11001969static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001970{
1971 return 0;
1972}
1973
Eric Paris2069f452008-07-04 09:47:13 +10001974static inline int security_sb_show_options(struct seq_file *m,
1975 struct super_block *sb)
1976{
1977 return 0;
1978}
1979
Eric Paris7b41b172008-04-23 14:10:25 -04001980static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001981{
1982 return 0;
1983}
1984
Eric Paris7b41b172008-04-23 14:10:25 -04001985static inline int security_sb_mount(char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001986 char *type, unsigned long flags,
1987 void *data)
1988{
1989 return 0;
1990}
1991
Eric Paris7b41b172008-04-23 14:10:25 -04001992static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001993{
1994 return 0;
1995}
1996
Eric Paris7b41b172008-04-23 14:10:25 -04001997static inline int security_sb_pivotroot(struct path *old_path,
1998 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999{
2000 return 0;
2001}
2002
Eric Parise0007522008-03-05 10:31:54 -05002003static inline int security_sb_set_mnt_opts(struct super_block *sb,
2004 struct security_mnt_opts *opts)
2005{
2006 return 0;
2007}
2008
2009static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
2010 struct super_block *newsb)
2011{ }
2012
2013static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
2014{
2015 return 0;
2016}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002017
Eric Paris7b41b172008-04-23 14:10:25 -04002018static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002019{
2020 return 0;
2021}
2022
Eric Paris7b41b172008-04-23 14:10:25 -04002023static inline void security_inode_free(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002024{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002025
Eric Paris7b41b172008-04-23 14:10:25 -04002026static inline int security_inode_init_security(struct inode *inode,
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002027 struct inode *dir,
2028 char **name,
2029 void **value,
2030 size_t *len)
2031{
2032 return -EOPNOTSUPP;
2033}
Eric Paris7b41b172008-04-23 14:10:25 -04002034
2035static inline int security_inode_create(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036 struct dentry *dentry,
2037 int mode)
2038{
2039 return 0;
2040}
2041
Eric Paris7b41b172008-04-23 14:10:25 -04002042static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002043 struct inode *dir,
2044 struct dentry *new_dentry)
2045{
2046 return 0;
2047}
2048
Eric Paris7b41b172008-04-23 14:10:25 -04002049static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002050 struct dentry *dentry)
2051{
2052 return 0;
2053}
2054
Eric Paris7b41b172008-04-23 14:10:25 -04002055static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002056 struct dentry *dentry,
2057 const char *old_name)
2058{
2059 return 0;
2060}
2061
Eric Paris7b41b172008-04-23 14:10:25 -04002062static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002063 struct dentry *dentry,
2064 int mode)
2065{
2066 return 0;
2067}
2068
Eric Paris7b41b172008-04-23 14:10:25 -04002069static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002070 struct dentry *dentry)
2071{
2072 return 0;
2073}
2074
Eric Paris7b41b172008-04-23 14:10:25 -04002075static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076 struct dentry *dentry,
2077 int mode, dev_t dev)
2078{
2079 return 0;
2080}
2081
Eric Paris7b41b172008-04-23 14:10:25 -04002082static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002083 struct dentry *old_dentry,
2084 struct inode *new_dir,
2085 struct dentry *new_dentry)
2086{
2087 return 0;
2088}
2089
Eric Paris7b41b172008-04-23 14:10:25 -04002090static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002091{
2092 return 0;
2093}
2094
Eric Paris7b41b172008-04-23 14:10:25 -04002095static inline int security_inode_follow_link(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096 struct nameidata *nd)
2097{
2098 return 0;
2099}
2100
Al Virob77b0642008-07-17 09:37:02 -04002101static inline int security_inode_permission(struct inode *inode, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002102{
2103 return 0;
2104}
2105
Eric Paris7b41b172008-04-23 14:10:25 -04002106static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002107 struct iattr *attr)
2108{
2109 return 0;
2110}
2111
Eric Paris7b41b172008-04-23 14:10:25 -04002112static inline int security_inode_getattr(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113 struct dentry *dentry)
2114{
2115 return 0;
2116}
2117
David Howells8f0cfa52008-04-29 00:59:41 -07002118static inline int security_inode_setxattr(struct dentry *dentry,
2119 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120{
2121 return cap_inode_setxattr(dentry, name, value, size, flags);
2122}
2123
David Howells8f0cfa52008-04-29 00:59:41 -07002124static inline void security_inode_post_setxattr(struct dentry *dentry,
2125 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126{ }
2127
David Howells8f0cfa52008-04-29 00:59:41 -07002128static inline int security_inode_getxattr(struct dentry *dentry,
2129 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130{
2131 return 0;
2132}
2133
Eric Paris7b41b172008-04-23 14:10:25 -04002134static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135{
2136 return 0;
2137}
2138
David Howells8f0cfa52008-04-29 00:59:41 -07002139static inline int security_inode_removexattr(struct dentry *dentry,
2140 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141{
2142 return cap_inode_removexattr(dentry, name);
2143}
2144
Serge E. Hallynb5376772007-10-16 23:31:36 -07002145static inline int security_inode_need_killpriv(struct dentry *dentry)
2146{
2147 return cap_inode_need_killpriv(dentry);
2148}
2149
2150static inline int security_inode_killpriv(struct dentry *dentry)
2151{
2152 return cap_inode_killpriv(dentry);
2153}
2154
David P. Quigley42492592008-02-04 22:29:39 -08002155static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156{
2157 return -EOPNOTSUPP;
2158}
2159
2160static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2161{
2162 return -EOPNOTSUPP;
2163}
2164
2165static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2166{
2167 return 0;
2168}
2169
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002170static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2171{
2172 *secid = 0;
2173}
2174
Eric Paris7b41b172008-04-23 14:10:25 -04002175static inline int security_file_permission(struct file *file, int mask)
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_alloc(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181{
2182 return 0;
2183}
2184
Eric Paris7b41b172008-04-23 14:10:25 -04002185static inline void security_file_free(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002186{ }
2187
Eric Paris7b41b172008-04-23 14:10:25 -04002188static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2189 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002190{
2191 return 0;
2192}
2193
Eric Paris7b41b172008-04-23 14:10:25 -04002194static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2195 unsigned long prot,
2196 unsigned long flags,
2197 unsigned long addr,
2198 unsigned long addr_only)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199{
Eric Paris7c738752009-07-31 12:53:58 -04002200 return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002201}
2202
Eric Paris7b41b172008-04-23 14:10:25 -04002203static inline int security_file_mprotect(struct vm_area_struct *vma,
2204 unsigned long reqprot,
2205 unsigned long prot)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206{
2207 return 0;
2208}
2209
Eric Paris7b41b172008-04-23 14:10:25 -04002210static inline int security_file_lock(struct file *file, unsigned int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211{
2212 return 0;
2213}
2214
Eric Paris7b41b172008-04-23 14:10:25 -04002215static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2216 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002217{
2218 return 0;
2219}
2220
Eric Paris7b41b172008-04-23 14:10:25 -04002221static inline int security_file_set_fowner(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222{
2223 return 0;
2224}
2225
Eric Paris7b41b172008-04-23 14:10:25 -04002226static inline int security_file_send_sigiotask(struct task_struct *tsk,
2227 struct fown_struct *fown,
2228 int sig)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002229{
2230 return 0;
2231}
2232
Eric Paris7b41b172008-04-23 14:10:25 -04002233static inline int security_file_receive(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234{
2235 return 0;
2236}
2237
David Howells745ca242008-11-14 10:39:22 +11002238static inline int security_dentry_open(struct file *file,
2239 const struct cred *cred)
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +09002240{
2241 return 0;
2242}
2243
Eric Paris7b41b172008-04-23 14:10:25 -04002244static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002245{
2246 return 0;
2247}
2248
David Howells945af7c2009-09-04 09:19:48 +01002249static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
2250{
2251 return 0;
2252}
David Howellsee18d642009-09-02 09:14:21 +01002253
David Howellsd84f4f92008-11-14 10:39:23 +11002254static inline void security_cred_free(struct cred *cred)
2255{ }
2256
2257static inline int security_prepare_creds(struct cred *new,
2258 const struct cred *old,
2259 gfp_t gfp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002260{
2261 return 0;
2262}
2263
David Howellsee18d642009-09-02 09:14:21 +01002264static inline void security_transfer_creds(struct cred *new,
2265 const struct cred *old)
2266{
2267}
2268
David Howells3a3b7ce2008-11-14 10:39:28 +11002269static inline int security_kernel_act_as(struct cred *cred, u32 secid)
2270{
2271 return 0;
2272}
2273
2274static inline int security_kernel_create_files_as(struct cred *cred,
2275 struct inode *inode)
2276{
2277 return 0;
2278}
2279
Eric Parisdd8dbf22009-11-03 16:35:32 +11002280static inline int security_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -04002281{
2282 return 0;
2283}
2284
David Howellsd84f4f92008-11-14 10:39:23 +11002285static inline int security_task_fix_setuid(struct cred *new,
2286 const struct cred *old,
2287 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002288{
David Howellsd84f4f92008-11-14 10:39:23 +11002289 return cap_task_fix_setuid(new, old, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290}
2291
Eric Paris7b41b172008-04-23 14:10:25 -04002292static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002293{
2294 return 0;
2295}
2296
Eric Paris7b41b172008-04-23 14:10:25 -04002297static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002298{
2299 return 0;
2300}
2301
Eric Paris7b41b172008-04-23 14:10:25 -04002302static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303{
2304 return 0;
2305}
2306
Eric Paris7b41b172008-04-23 14:10:25 -04002307static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002308{
2309 *secid = 0;
2310}
David Quigleyf9008e42006-06-30 01:55:46 -07002311
Eric Paris7b41b172008-04-23 14:10:25 -04002312static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002313{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002314 return cap_task_setnice(p, nice);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002315}
2316
Eric Paris7b41b172008-04-23 14:10:25 -04002317static inline int security_task_setioprio(struct task_struct *p, int ioprio)
James Morris03e68062006-06-23 02:03:58 -07002318{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002319 return cap_task_setioprio(p, ioprio);
James Morris03e68062006-06-23 02:03:58 -07002320}
2321
Eric Paris7b41b172008-04-23 14:10:25 -04002322static inline int security_task_getioprio(struct task_struct *p)
David Quigleya1836a42006-06-30 01:55:49 -07002323{
2324 return 0;
2325}
2326
Jiri Slaby8fd00b42009-08-26 18:41:16 +02002327static inline int security_task_setrlimit(struct task_struct *p,
2328 unsigned int resource,
Eric Paris7b41b172008-04-23 14:10:25 -04002329 struct rlimit *new_rlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002330{
2331 return 0;
2332}
2333
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09002334static inline int security_task_setscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002335{
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09002336 return cap_task_setscheduler(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002337}
2338
Eric Paris7b41b172008-04-23 14:10:25 -04002339static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002340{
2341 return 0;
2342}
2343
Eric Paris7b41b172008-04-23 14:10:25 -04002344static inline int security_task_movememory(struct task_struct *p)
David Quigley35601542006-06-23 02:04:01 -07002345{
2346 return 0;
2347}
2348
Eric Paris7b41b172008-04-23 14:10:25 -04002349static inline int security_task_kill(struct task_struct *p,
2350 struct siginfo *info, int sig,
2351 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002352{
Serge Hallynaedb60a2008-02-29 15:14:57 +00002353 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002354}
2355
Eric Paris7b41b172008-04-23 14:10:25 -04002356static inline int security_task_wait(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002357{
2358 return 0;
2359}
2360
Eric Paris7b41b172008-04-23 14:10:25 -04002361static inline int security_task_prctl(int option, unsigned long arg2,
2362 unsigned long arg3,
2363 unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11002364 unsigned long arg5)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002365{
David Howellsd84f4f92008-11-14 10:39:23 +11002366 return cap_task_prctl(option, arg2, arg3, arg3, arg5);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002367}
2368
2369static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2370{ }
2371
Eric Paris7b41b172008-04-23 14:10:25 -04002372static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2373 short flag)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002374{
2375 return 0;
2376}
2377
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002378static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2379{
2380 *secid = 0;
2381}
2382
Eric Paris7b41b172008-04-23 14:10:25 -04002383static inline int security_msg_msg_alloc(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002384{
2385 return 0;
2386}
2387
Eric Paris7b41b172008-04-23 14:10:25 -04002388static inline void security_msg_msg_free(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002389{ }
2390
Eric Paris7b41b172008-04-23 14:10:25 -04002391static inline int security_msg_queue_alloc(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002392{
2393 return 0;
2394}
2395
Eric Paris7b41b172008-04-23 14:10:25 -04002396static inline void security_msg_queue_free(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002397{ }
2398
Eric Paris7b41b172008-04-23 14:10:25 -04002399static inline int security_msg_queue_associate(struct msg_queue *msq,
2400 int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002401{
2402 return 0;
2403}
2404
Eric Paris7b41b172008-04-23 14:10:25 -04002405static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002406{
2407 return 0;
2408}
2409
Eric Paris7b41b172008-04-23 14:10:25 -04002410static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2411 struct msg_msg *msg, int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002412{
2413 return 0;
2414}
2415
Eric Paris7b41b172008-04-23 14:10:25 -04002416static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2417 struct msg_msg *msg,
2418 struct task_struct *target,
2419 long type, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002420{
2421 return 0;
2422}
2423
Eric Paris7b41b172008-04-23 14:10:25 -04002424static inline int security_shm_alloc(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002425{
2426 return 0;
2427}
2428
Eric Paris7b41b172008-04-23 14:10:25 -04002429static inline void security_shm_free(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002430{ }
2431
Eric Paris7b41b172008-04-23 14:10:25 -04002432static inline int security_shm_associate(struct shmid_kernel *shp,
2433 int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002434{
2435 return 0;
2436}
2437
Eric Paris7b41b172008-04-23 14:10:25 -04002438static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002439{
2440 return 0;
2441}
2442
Eric Paris7b41b172008-04-23 14:10:25 -04002443static inline int security_shm_shmat(struct shmid_kernel *shp,
2444 char __user *shmaddr, int shmflg)
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_alloc(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002450{
2451 return 0;
2452}
2453
Eric Paris7b41b172008-04-23 14:10:25 -04002454static inline void security_sem_free(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002455{ }
2456
Eric Paris7b41b172008-04-23 14:10:25 -04002457static inline int security_sem_associate(struct sem_array *sma, int semflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002458{
2459 return 0;
2460}
2461
Eric Paris7b41b172008-04-23 14:10:25 -04002462static inline int security_sem_semctl(struct sem_array *sma, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002463{
2464 return 0;
2465}
2466
Eric Paris7b41b172008-04-23 14:10:25 -04002467static inline int security_sem_semop(struct sem_array *sma,
2468 struct sembuf *sops, unsigned nsops,
2469 int alter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002470{
2471 return 0;
2472}
2473
Eric Paris7b41b172008-04-23 14:10:25 -04002474static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002475{ }
2476
Al Viro04ff9702007-03-12 16:17:58 +00002477static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002478{
2479 return -EINVAL;
2480}
2481
2482static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2483{
2484 return -EINVAL;
2485}
2486
Eric Paris7b41b172008-04-23 14:10:25 -04002487static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002488{
Eric Paris7b41b172008-04-23 14:10:25 -04002489 return cap_netlink_send(sk, skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002490}
2491
Eric Paris7b41b172008-04-23 14:10:25 -04002492static inline int security_netlink_recv(struct sk_buff *skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002493{
Eric Paris7b41b172008-04-23 14:10:25 -04002494 return cap_netlink_recv(skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002495}
2496
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002497static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2498{
2499 return -EOPNOTSUPP;
2500}
2501
David Howells7bf570d2008-04-29 20:52:51 +01002502static inline int security_secctx_to_secid(const char *secdata,
David Howells63cb3442008-01-15 23:47:35 +00002503 u32 seclen,
2504 u32 *secid)
2505{
2506 return -EOPNOTSUPP;
2507}
2508
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002509static inline void security_release_secctx(char *secdata, u32 seclen)
2510{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002511}
David P. Quigley1ee65e32009-09-03 14:25:57 -04002512
2513static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
2514{
2515 return -EOPNOTSUPP;
2516}
2517static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
2518{
2519 return -EOPNOTSUPP;
2520}
2521static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
2522{
2523 return -EOPNOTSUPP;
2524}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002525#endif /* CONFIG_SECURITY */
2526
2527#ifdef CONFIG_SECURITY_NETWORK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002528
James Morris20510f22007-10-16 23:31:32 -07002529int security_unix_stream_connect(struct socket *sock, struct socket *other,
2530 struct sock *newsk);
2531int security_unix_may_send(struct socket *sock, struct socket *other);
2532int security_socket_create(int family, int type, int protocol, int kern);
2533int security_socket_post_create(struct socket *sock, int family,
2534 int type, int protocol, int kern);
2535int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2536int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2537int security_socket_listen(struct socket *sock, int backlog);
2538int security_socket_accept(struct socket *sock, struct socket *newsock);
James Morris20510f22007-10-16 23:31:32 -07002539int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2540int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2541 int size, int flags);
2542int security_socket_getsockname(struct socket *sock);
2543int security_socket_getpeername(struct socket *sock);
2544int security_socket_getsockopt(struct socket *sock, int level, int optname);
2545int security_socket_setsockopt(struct socket *sock, int level, int optname);
2546int security_socket_shutdown(struct socket *sock, int how);
2547int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2548int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2549 int __user *optlen, unsigned len);
2550int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2551int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2552void security_sk_free(struct sock *sk);
2553void security_sk_clone(const struct sock *sk, struct sock *newsk);
2554void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2555void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2556void security_sock_graft(struct sock*sk, struct socket *parent);
2557int security_inet_conn_request(struct sock *sk,
2558 struct sk_buff *skb, struct request_sock *req);
2559void security_inet_csk_clone(struct sock *newsk,
2560 const struct request_sock *req);
2561void security_inet_conn_established(struct sock *sk,
2562 struct sk_buff *skb);
Eric Paris2606fd12010-10-13 16:24:41 -04002563int security_secmark_relabel_packet(u32 secid);
2564void security_secmark_refcount_inc(void);
2565void security_secmark_refcount_dec(void);
Paul Moore2b980db2009-08-28 18:12:43 -04002566int security_tun_dev_create(void);
2567void security_tun_dev_post_create(struct sock *sk);
2568int security_tun_dev_attach(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002569
Linus Torvalds1da177e2005-04-16 15:20:36 -07002570#else /* CONFIG_SECURITY_NETWORK */
Eric Paris7b41b172008-04-23 14:10:25 -04002571static inline int security_unix_stream_connect(struct socket *sock,
2572 struct socket *other,
2573 struct sock *newsk)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002574{
2575 return 0;
2576}
2577
Eric Paris7b41b172008-04-23 14:10:25 -04002578static inline int security_unix_may_send(struct socket *sock,
2579 struct socket *other)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002580{
2581 return 0;
2582}
2583
Eric Paris7b41b172008-04-23 14:10:25 -04002584static inline int security_socket_create(int family, int type,
2585 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002586{
2587 return 0;
2588}
2589
Eric Paris7b41b172008-04-23 14:10:25 -04002590static inline int security_socket_post_create(struct socket *sock,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002591 int family,
2592 int type,
2593 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002594{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002595 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002596}
2597
Eric Paris7b41b172008-04-23 14:10:25 -04002598static inline int security_socket_bind(struct socket *sock,
2599 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002600 int addrlen)
2601{
2602 return 0;
2603}
2604
Eric Paris7b41b172008-04-23 14:10:25 -04002605static inline int security_socket_connect(struct socket *sock,
2606 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002607 int addrlen)
2608{
2609 return 0;
2610}
2611
Eric Paris7b41b172008-04-23 14:10:25 -04002612static inline int security_socket_listen(struct socket *sock, int backlog)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002613{
2614 return 0;
2615}
2616
Eric Paris7b41b172008-04-23 14:10:25 -04002617static inline int security_socket_accept(struct socket *sock,
2618 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002619{
2620 return 0;
2621}
2622
Eric Paris7b41b172008-04-23 14:10:25 -04002623static inline int security_socket_sendmsg(struct socket *sock,
2624 struct msghdr *msg, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002625{
2626 return 0;
2627}
2628
Eric Paris7b41b172008-04-23 14:10:25 -04002629static inline int security_socket_recvmsg(struct socket *sock,
2630 struct msghdr *msg, int size,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002631 int flags)
2632{
2633 return 0;
2634}
2635
Eric Paris7b41b172008-04-23 14:10:25 -04002636static inline int security_socket_getsockname(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002637{
2638 return 0;
2639}
2640
Eric Paris7b41b172008-04-23 14:10:25 -04002641static inline int security_socket_getpeername(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002642{
2643 return 0;
2644}
2645
Eric Paris7b41b172008-04-23 14:10:25 -04002646static inline int security_socket_getsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002647 int level, int optname)
2648{
2649 return 0;
2650}
2651
Eric Paris7b41b172008-04-23 14:10:25 -04002652static inline int security_socket_setsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002653 int level, int optname)
2654{
2655 return 0;
2656}
2657
Eric Paris7b41b172008-04-23 14:10:25 -04002658static inline int security_socket_shutdown(struct socket *sock, int how)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002659{
2660 return 0;
2661}
Eric Paris7b41b172008-04-23 14:10:25 -04002662static inline int security_sock_rcv_skb(struct sock *sk,
2663 struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002664{
2665 return 0;
2666}
2667
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002668static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2669 int __user *optlen, unsigned len)
2670{
2671 return -ENOPROTOOPT;
2672}
2673
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002674static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002675{
2676 return -ENOPROTOOPT;
2677}
2678
Al Virodd0fc662005-10-07 07:46:04 +01002679static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002680{
2681 return 0;
2682}
2683
2684static inline void security_sk_free(struct sock *sk)
2685{
2686}
Trent Jaegerdf718372005-12-13 23:12:27 -08002687
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002688static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2689{
2690}
2691
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002692static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002693{
Trent Jaegerdf718372005-12-13 23:12:27 -08002694}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002695
2696static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2697{
2698}
2699
Eric Paris7b41b172008-04-23 14:10:25 -04002700static inline void security_sock_graft(struct sock *sk, struct socket *parent)
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002701{
2702}
2703
2704static inline int security_inet_conn_request(struct sock *sk,
2705 struct sk_buff *skb, struct request_sock *req)
2706{
2707 return 0;
2708}
2709
2710static inline void security_inet_csk_clone(struct sock *newsk,
2711 const struct request_sock *req)
2712{
2713}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002714
2715static inline void security_inet_conn_established(struct sock *sk,
2716 struct sk_buff *skb)
2717{
2718}
Paul Moore2b980db2009-08-28 18:12:43 -04002719
Eric Paris2606fd12010-10-13 16:24:41 -04002720static inline int security_secmark_relabel_packet(u32 secid)
2721{
2722 return 0;
2723}
2724
2725static inline void security_secmark_refcount_inc(void)
2726{
2727}
2728
2729static inline void security_secmark_refcount_dec(void)
2730{
2731}
2732
Paul Moore2b980db2009-08-28 18:12:43 -04002733static inline int security_tun_dev_create(void)
2734{
2735 return 0;
2736}
2737
2738static inline void security_tun_dev_post_create(struct sock *sk)
2739{
2740}
2741
2742static inline int security_tun_dev_attach(struct sock *sk)
2743{
2744 return 0;
2745}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002746#endif /* CONFIG_SECURITY_NETWORK */
2747
Trent Jaegerdf718372005-12-13 23:12:27 -08002748#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07002749
Paul Moore03e1ad72008-04-12 19:07:52 -07002750int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2751int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2752void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2753int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
James Morris20510f22007-10-16 23:31:32 -07002754int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2755int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2756 struct xfrm_sec_ctx *polsec, u32 secid);
2757int security_xfrm_state_delete(struct xfrm_state *x);
2758void security_xfrm_state_free(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -07002759int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
James Morris20510f22007-10-16 23:31:32 -07002760int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2761 struct xfrm_policy *xp, struct flowi *fl);
2762int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2763void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
Trent Jaegerdf718372005-12-13 23:12:27 -08002764
Trent Jaegerdf718372005-12-13 23:12:27 -08002765#else /* CONFIG_SECURITY_NETWORK_XFRM */
James Morris20510f22007-10-16 23:31:32 -07002766
Paul Moore03e1ad72008-04-12 19:07:52 -07002767static 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 -08002768{
2769 return 0;
2770}
2771
Paul Moore03e1ad72008-04-12 19:07:52 -07002772static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
Trent Jaegerdf718372005-12-13 23:12:27 -08002773{
2774 return 0;
2775}
2776
Paul Moore03e1ad72008-04-12 19:07:52 -07002777static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08002778{
2779}
2780
Paul Moore03e1ad72008-04-12 19:07:52 -07002781static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002782{
2783 return 0;
2784}
2785
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002786static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2787 struct xfrm_user_sec_ctx *sec_ctx)
2788{
2789 return 0;
2790}
2791
2792static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2793 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08002794{
2795 return 0;
2796}
2797
2798static inline void security_xfrm_state_free(struct xfrm_state *x)
2799{
2800}
2801
David S. Miller6f68dc32006-06-08 23:58:52 -07002802static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002803{
2804 return 0;
2805}
2806
Paul Moore03e1ad72008-04-12 19:07:52 -07002807static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08002808{
2809 return 0;
2810}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002811
2812static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2813 struct xfrm_policy *xp, struct flowi *fl)
2814{
2815 return 1;
2816}
2817
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002818static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002819{
2820 return 0;
2821}
2822
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002823static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2824{
2825}
2826
Trent Jaegerdf718372005-12-13 23:12:27 -08002827#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2828
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002829#ifdef CONFIG_SECURITY_PATH
2830int security_path_unlink(struct path *dir, struct dentry *dentry);
2831int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode);
2832int security_path_rmdir(struct path *dir, struct dentry *dentry);
2833int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
2834 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002835int security_path_truncate(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002836int security_path_symlink(struct path *dir, struct dentry *dentry,
2837 const char *old_name);
2838int security_path_link(struct dentry *old_dentry, struct path *new_dir,
2839 struct dentry *new_dentry);
2840int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
2841 struct path *new_dir, struct dentry *new_dentry);
Tetsuo Handa89eda062009-10-04 21:49:47 +09002842int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
2843 mode_t mode);
2844int security_path_chown(struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002845int security_path_chroot(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002846#else /* CONFIG_SECURITY_PATH */
2847static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
2848{
2849 return 0;
2850}
2851
2852static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
2853 int mode)
2854{
2855 return 0;
2856}
2857
2858static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
2859{
2860 return 0;
2861}
2862
2863static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
2864 int mode, unsigned int dev)
2865{
2866 return 0;
2867}
2868
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002869static inline int security_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002870{
2871 return 0;
2872}
2873
2874static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
2875 const char *old_name)
2876{
2877 return 0;
2878}
2879
2880static inline int security_path_link(struct dentry *old_dentry,
2881 struct path *new_dir,
2882 struct dentry *new_dentry)
2883{
2884 return 0;
2885}
2886
2887static inline int security_path_rename(struct path *old_dir,
2888 struct dentry *old_dentry,
2889 struct path *new_dir,
2890 struct dentry *new_dentry)
2891{
2892 return 0;
2893}
Tetsuo Handa89eda062009-10-04 21:49:47 +09002894
2895static inline int security_path_chmod(struct dentry *dentry,
2896 struct vfsmount *mnt,
2897 mode_t mode)
2898{
2899 return 0;
2900}
2901
2902static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid)
2903{
2904 return 0;
2905}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002906
2907static inline int security_path_chroot(struct path *path)
2908{
2909 return 0;
2910}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002911#endif /* CONFIG_SECURITY_PATH */
2912
David Howells29db9192005-10-30 15:02:44 -08002913#ifdef CONFIG_KEYS
2914#ifdef CONFIG_SECURITY
David Howells29db9192005-10-30 15:02:44 -08002915
David Howellsd84f4f92008-11-14 10:39:23 +11002916int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
James Morris20510f22007-10-16 23:31:32 -07002917void security_key_free(struct key *key);
2918int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002919 const struct cred *cred, key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07002920int security_key_getsecurity(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08002921
2922#else
2923
Michael LeMayd7200242006-06-22 14:47:17 -07002924static inline int security_key_alloc(struct key *key,
David Howellsd84f4f92008-11-14 10:39:23 +11002925 const struct cred *cred,
David Howells7e047ef2006-06-26 00:24:50 -07002926 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08002927{
2928 return 0;
2929}
2930
2931static inline void security_key_free(struct key *key)
2932{
2933}
2934
2935static inline int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002936 const struct cred *cred,
David Howells29db9192005-10-30 15:02:44 -08002937 key_perm_t perm)
2938{
2939 return 0;
2940}
2941
David Howells70a5bb72008-04-29 01:01:26 -07002942static inline int security_key_getsecurity(struct key *key, char **_buffer)
2943{
2944 *_buffer = NULL;
2945 return 0;
2946}
2947
David Howells29db9192005-10-30 15:02:44 -08002948#endif
2949#endif /* CONFIG_KEYS */
2950
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02002951#ifdef CONFIG_AUDIT
2952#ifdef CONFIG_SECURITY
2953int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2954int security_audit_rule_known(struct audit_krule *krule);
2955int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2956 struct audit_context *actx);
2957void security_audit_rule_free(void *lsmrule);
2958
2959#else
2960
2961static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2962 void **lsmrule)
2963{
2964 return 0;
2965}
2966
2967static inline int security_audit_rule_known(struct audit_krule *krule)
2968{
2969 return 0;
2970}
2971
2972static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2973 void *lsmrule, struct audit_context *actx)
2974{
2975 return 0;
2976}
2977
2978static inline void security_audit_rule_free(void *lsmrule)
2979{ }
2980
2981#endif /* CONFIG_SECURITY */
2982#endif /* CONFIG_AUDIT */
2983
Eric Parisda318942008-08-22 11:35:57 -04002984#ifdef CONFIG_SECURITYFS
2985
2986extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2987 struct dentry *parent, void *data,
2988 const struct file_operations *fops);
2989extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2990extern void securityfs_remove(struct dentry *dentry);
2991
2992#else /* CONFIG_SECURITYFS */
2993
2994static inline struct dentry *securityfs_create_dir(const char *name,
2995 struct dentry *parent)
2996{
2997 return ERR_PTR(-ENODEV);
2998}
2999
3000static inline struct dentry *securityfs_create_file(const char *name,
3001 mode_t mode,
3002 struct dentry *parent,
3003 void *data,
3004 const struct file_operations *fops)
3005{
3006 return ERR_PTR(-ENODEV);
3007}
3008
3009static inline void securityfs_remove(struct dentry *dentry)
3010{}
3011
3012#endif
3013
Pekka Enberg3d544f42009-03-24 11:59:23 +02003014#ifdef CONFIG_SECURITY
3015
3016static inline char *alloc_secdata(void)
3017{
3018 return (char *)get_zeroed_page(GFP_KERNEL);
3019}
3020
3021static inline void free_secdata(void *secdata)
3022{
3023 free_page((unsigned long)secdata);
3024}
3025
3026#else
3027
3028static inline char *alloc_secdata(void)
3029{
3030 return (char *)1;
3031}
3032
3033static inline void free_secdata(void *secdata)
3034{ }
3035#endif /* CONFIG_SECURITY */
3036
Linus Torvalds1da177e2005-04-16 15:20:36 -07003037#endif /* ! __LINUX_SECURITY_H */
3038