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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>
Eric Paris2a7dba32011-02-01 11:05:39 -050028#include <linux/dcache.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#include <linux/signal.h>
30#include <linux/resource.h>
31#include <linux/sem.h>
32#include <linux/shm.h>
Eric Parisa2551df2009-07-31 12:54:11 -040033#include <linux/mm.h> /* PAGE_ALIGN */
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include <linux/msg.h>
35#include <linux/sched.h>
David Howells29db9192005-10-30 15:02:44 -080036#include <linux/key.h>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -070037#include <linux/xfrm.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090038#include <linux/slab.h>
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -070039#include <net/flow.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020041/* Maximum number of letters for an LSM name string */
42#define SECURITY_NAME_MAX 10
43
Eric Paris06112162008-11-11 22:02:50 +110044/* If capable should audit the security request */
45#define SECURITY_CAP_NOAUDIT 0
46#define SECURITY_CAP_AUDIT 1
47
Linus Torvalds1da177e2005-04-16 15:20:36 -070048struct ctl_table;
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +020049struct audit_krule;
Serge E. Hallyn34867402011-03-23 16:43:17 -070050struct user_namespace;
Linus Torvalds1da177e2005-04-16 15:20:36 -070051
52/*
53 * These functions are in security/capability.c and are used
54 * as the default capabilities functions
55 */
Eric Paris6a9de492012-01-03 12:25:14 -050056extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
57 int cap, int audit);
Richard Cochran1e6d7672011-02-01 13:50:58 +000058extern int cap_settime(const struct timespec *ts, const struct timezone *tz);
Ingo Molnar9e488582009-05-07 19:26:19 +100059extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +010060extern int cap_ptrace_traceme(struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -040061extern 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 +110062extern int cap_capset(struct cred *new, const struct cred *old,
63 const kernel_cap_t *effective,
64 const kernel_cap_t *inheritable,
65 const kernel_cap_t *permitted);
David Howellsa6f76f22008-11-14 10:39:24 +110066extern int cap_bprm_set_creds(struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -070067extern int cap_bprm_secureexec(struct linux_binprm *bprm);
David Howells8f0cfa52008-04-29 00:59:41 -070068extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
69 const void *value, size_t size, int flags);
70extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -070071extern int cap_inode_need_killpriv(struct dentry *dentry);
72extern int cap_inode_killpriv(struct dentry *dentry);
Eric Paris7c738752009-07-31 12:53:58 -040073extern int cap_file_mmap(struct file *file, unsigned long reqprot,
74 unsigned long prot, unsigned long flags,
75 unsigned long addr, unsigned long addr_only);
David Howellsd84f4f92008-11-14 10:39:23 +110076extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070077extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +110078 unsigned long arg4, unsigned long arg5);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +090079extern int cap_task_setscheduler(struct task_struct *p);
Eric Paris7b41b172008-04-23 14:10:25 -040080extern int cap_task_setioprio(struct task_struct *p, int ioprio);
81extern int cap_task_setnice(struct task_struct *p, int nice);
James Morris20510f22007-10-16 23:31:32 -070082extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -070083
84struct msghdr;
85struct sk_buff;
86struct sock;
87struct sockaddr;
88struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -080089struct flowi;
90struct dst_entry;
91struct xfrm_selector;
92struct xfrm_policy;
93struct xfrm_state;
94struct xfrm_user_sec_ctx;
Eric Paris2069f452008-07-04 09:47:13 +100095struct seq_file;
Linus Torvalds1da177e2005-04-16 15:20:36 -070096
97extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
Darrel Goeddelc7bdb542006-06-27 13:26:11 -070098extern int cap_netlink_recv(struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -070099
wzt.wzt@gmail.com189b3b12010-02-23 23:15:28 +0800100void reset_security_ops(void);
101
David Howells6e141542009-12-15 19:27:45 +0000102#ifdef CONFIG_MMU
Eric Parised032182007-06-28 15:55:21 -0400103extern unsigned long mmap_min_addr;
Eric Parisa2551df2009-07-31 12:54:11 -0400104extern unsigned long dac_mmap_min_addr;
David Howells6e141542009-12-15 19:27:45 +0000105#else
106#define dac_mmap_min_addr 0UL
107#endif
108
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109/*
110 * Values used in the task_security_ops calls
111 */
112/* setuid or setgid, id0 == uid or gid */
113#define LSM_SETID_ID 1
114
115/* setreuid or setregid, id0 == real, id1 == eff */
116#define LSM_SETID_RE 2
117
118/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
119#define LSM_SETID_RES 4
120
121/* setfsuid or setfsgid, id0 == fsuid or fsgid */
122#define LSM_SETID_FS 8
123
124/* forward declares to avoid warnings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125struct sched_param;
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700126struct request_sock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127
David Howellsa6f76f22008-11-14 10:39:24 +1100128/* bprm->unsafe reasons */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129#define LSM_UNSAFE_SHARE 1
130#define LSM_UNSAFE_PTRACE 2
131#define LSM_UNSAFE_PTRACE_CAP 4
132
David Howells6e141542009-12-15 19:27:45 +0000133#ifdef CONFIG_MMU
Eric Paris47d439e2009-08-07 14:53:57 -0400134/*
135 * If a hint addr is less than mmap_min_addr change hint to be as
136 * low as possible but still greater than mmap_min_addr
137 */
138static inline unsigned long round_hint_to_min(unsigned long hint)
139{
140 hint &= PAGE_MASK;
141 if (((void *)hint != NULL) &&
142 (hint < mmap_min_addr))
143 return PAGE_ALIGN(mmap_min_addr);
144 return hint;
145}
Alexey Dobriyan8d65af72009-09-23 15:57:19 -0700146extern int mmap_min_addr_handler(struct ctl_table *table, int write,
Eric Paris47d439e2009-08-07 14:53:57 -0400147 void __user *buffer, size_t *lenp, loff_t *ppos);
David Howells6e141542009-12-15 19:27:45 +0000148#endif
Eric Paris47d439e2009-08-07 14:53:57 -0400149
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150#ifdef CONFIG_SECURITY
151
Eric Parise0007522008-03-05 10:31:54 -0500152struct security_mnt_opts {
153 char **mnt_opts;
154 int *mnt_opts_flags;
155 int num_mnt_opts;
156};
157
158static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
159{
160 opts->mnt_opts = NULL;
161 opts->mnt_opts_flags = NULL;
162 opts->num_mnt_opts = 0;
163}
164
165static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
166{
167 int i;
168 if (opts->mnt_opts)
Eric Paris7b41b172008-04-23 14:10:25 -0400169 for (i = 0; i < opts->num_mnt_opts; i++)
Eric Parise0007522008-03-05 10:31:54 -0500170 kfree(opts->mnt_opts[i]);
171 kfree(opts->mnt_opts);
172 opts->mnt_opts = NULL;
173 kfree(opts->mnt_opts_flags);
174 opts->mnt_opts_flags = NULL;
175 opts->num_mnt_opts = 0;
176}
177
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178/**
179 * struct security_operations - main security structure
180 *
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200181 * Security module identifier.
182 *
183 * @name:
184 * A string that acts as a unique identifeir for the LSM with max number
185 * of characters = SECURITY_NAME_MAX.
186 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 * Security hooks for program execution operations.
188 *
David Howellsa6f76f22008-11-14 10:39:24 +1100189 * @bprm_set_creds:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190 * Save security information in the bprm->security field, typically based
191 * on information about the bprm->file, for later use by the apply_creds
192 * hook. This hook may also optionally check permissions (e.g. for
193 * transitions between security domains).
194 * This hook may be called multiple times during a single execve, e.g. for
195 * interpreters. The hook can tell whether it has already been called by
196 * checking to see if @bprm->security is non-NULL. If so, then the hook
197 * may decide either to retain the security information saved earlier or
198 * to replace it.
199 * @bprm contains the linux_binprm structure.
200 * Return 0 if the hook is successful and permission is granted.
201 * @bprm_check_security:
David Howellsa6f76f22008-11-14 10:39:24 +1100202 * This hook mediates the point when a search for a binary handler will
203 * begin. It allows a check the @bprm->security value which is set in the
204 * preceding set_creds call. The primary difference from set_creds is
205 * that the argv list and envp list are reliably available in @bprm. This
206 * hook may be called multiple times during a single execve; and in each
207 * pass set_creds is called first.
Eric Paris7b41b172008-04-23 14:10:25 -0400208 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 * Return 0 if the hook is successful and permission is granted.
David Howellsa6f76f22008-11-14 10:39:24 +1100210 * @bprm_committing_creds:
211 * Prepare to install the new security attributes of a process being
212 * transformed by an execve operation, based on the old credentials
213 * pointed to by @current->cred and the information set in @bprm->cred by
214 * the bprm_set_creds hook. @bprm points to the linux_binprm structure.
215 * This hook is a good place to perform state changes on the process such
216 * as closing open file descriptors to which access will no longer be
217 * granted when the attributes are changed. This is called immediately
218 * before commit_creds().
219 * @bprm_committed_creds:
220 * Tidy up after the installation of the new security attributes of a
221 * process being transformed by an execve operation. The new credentials
222 * have, by this point, been set to @current->cred. @bprm points to the
223 * linux_binprm structure. This hook is a good place to perform state
224 * changes on the process such as clearing out non-inheritable signal
225 * state. This is called immediately after commit_creds().
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 * @bprm_secureexec:
Eric Paris7b41b172008-04-23 14:10:25 -0400227 * Return a boolean value (0 or 1) indicating whether a "secure exec"
228 * is required. The flag is passed in the auxiliary table
229 * on the initial stack to the ELF interpreter to indicate whether libc
230 * should enable secure mode.
231 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 *
233 * Security hooks for filesystem operations.
234 *
235 * @sb_alloc_security:
236 * Allocate and attach a security structure to the sb->s_security field.
237 * The s_security field is initialized to NULL when the structure is
238 * allocated.
239 * @sb contains the super_block structure to be modified.
240 * Return 0 if operation was successful.
241 * @sb_free_security:
242 * Deallocate and clear the sb->s_security field.
243 * @sb contains the super_block structure to be modified.
244 * @sb_statfs:
David Howells726c3342006-06-23 02:02:58 -0700245 * Check permission before obtaining filesystem statistics for the @mnt
246 * mountpoint.
247 * @dentry is a handle on the superblock for the filesystem.
Eric Paris7b41b172008-04-23 14:10:25 -0400248 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 * @sb_mount:
250 * Check permission before an object specified by @dev_name is mounted on
251 * the mount point named by @nd. For an ordinary mount, @dev_name
252 * identifies a device if the file system type requires a device. For a
253 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
254 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
255 * pathname of the object being mounted.
256 * @dev_name contains the name for object being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400257 * @path contains the path for mount point object.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258 * @type contains the filesystem type.
259 * @flags contains the mount flags.
260 * @data contains the filesystem-specific data.
261 * Return 0 if permission is granted.
262 * @sb_copy_data:
263 * Allow mount option data to be copied prior to parsing by the filesystem,
264 * so that the security module can extract security-specific mount
265 * options cleanly (a filesystem may modify the data e.g. with strsep()).
266 * This also allows the original mount data to be stripped of security-
267 * specific options to avoid having to make filesystems aware of them.
268 * @type the type of filesystem being mounted.
269 * @orig the original mount data copied from userspace.
270 * @copy copied data which will be passed to the security module.
271 * Returns 0 if the copy was successful.
Eric Parisff36fe22011-03-03 16:09:14 -0500272 * @sb_remount:
273 * Extracts security system specifc mount options and verifys no changes
274 * are being made to those options.
275 * @sb superblock being remounted
276 * @data contains the filesystem-specific data.
277 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 * @sb_umount:
279 * Check permission before the @mnt file system is unmounted.
280 * @mnt contains the mounted file system.
281 * @flags contains the unmount flags, e.g. MNT_FORCE.
282 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 * @sb_pivotroot:
284 * Check permission before pivoting the root filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400285 * @old_path contains the path for the new location of the current root (put_old).
Eric Paris7b41b172008-04-23 14:10:25 -0400286 * @new_path contains the path for the new root (new_root).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 * Return 0 if permission is granted.
Eric Parisc9180a52007-11-30 13:00:35 -0500288 * @sb_set_mnt_opts:
289 * Set the security relevant mount options used for a superblock
290 * @sb the superblock to set security mount options for
Eric Parise0007522008-03-05 10:31:54 -0500291 * @opts binary data structure containing all lsm mount data
Eric Parisc9180a52007-11-30 13:00:35 -0500292 * @sb_clone_mnt_opts:
293 * Copy all security options from a given superblock to another
294 * @oldsb old superblock which contain information to clone
295 * @newsb new superblock which needs filled in
Eric Parise0007522008-03-05 10:31:54 -0500296 * @sb_parse_opts_str:
297 * Parse a string of security data filling in the opts structure
298 * @options string containing all mount options known by the LSM
299 * @opts binary data structure usable by the LSM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 *
301 * Security hooks for inode operations.
302 *
303 * @inode_alloc_security:
304 * Allocate and attach a security structure to @inode->i_security. The
305 * i_security field is initialized to NULL when the inode structure is
306 * allocated.
307 * @inode contains the inode structure.
308 * Return 0 if operation was successful.
309 * @inode_free_security:
310 * @inode contains the inode structure.
311 * Deallocate the inode security structure and set @inode->i_security to
Eric Paris7b41b172008-04-23 14:10:25 -0400312 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700313 * @inode_init_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400314 * Obtain the security attribute name suffix and value to set on a newly
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700315 * created inode and set up the incore security field for the new inode.
316 * This hook is called by the fs code as part of the inode creation
317 * transaction and provides for atomic labeling of the inode, unlike
318 * the post_create/mkdir/... hooks called by the VFS. The hook function
319 * is expected to allocate the name and value via kmalloc, with the caller
320 * being responsible for calling kfree after using them.
321 * If the security module does not use security attributes or does
322 * not wish to put a security attribute on this particular inode,
323 * then it should return -EOPNOTSUPP to skip this processing.
324 * @inode contains the inode structure of the newly created inode.
325 * @dir contains the inode structure of the parent directory.
Eric Paris2a7dba32011-02-01 11:05:39 -0500326 * @qstr contains the last path component of the new object
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700327 * @name will be set to the allocated name suffix (e.g. selinux).
328 * @value will be set to the allocated attribute value.
329 * @len will be set to the length of the value.
330 * Returns 0 if @name and @value have been successfully set,
331 * -EOPNOTSUPP if no security attribute is needed, or
332 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 * @inode_create:
334 * Check permission to create a regular file.
335 * @dir contains inode structure of the parent of the new file.
336 * @dentry contains the dentry structure for the file to be created.
337 * @mode contains the file mode of the file to be created.
338 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 * @inode_link:
340 * Check permission before creating a new hard link to a file.
341 * @old_dentry contains the dentry structure for an existing link to the file.
342 * @dir contains the inode structure of the parent directory of the new link.
343 * @new_dentry contains the dentry structure for the new link.
344 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900345 * @path_link:
346 * Check permission before creating a new hard link to a file.
347 * @old_dentry contains the dentry structure for an existing link
348 * to the file.
349 * @new_dir contains the path structure of the parent directory of
350 * the new link.
351 * @new_dentry contains the dentry structure for the new link.
352 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353 * @inode_unlink:
Eric Paris7b41b172008-04-23 14:10:25 -0400354 * Check the permission to remove a hard link to a file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 * @dir contains the inode structure of parent directory of the file.
356 * @dentry contains the dentry structure for file to be unlinked.
357 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900358 * @path_unlink:
359 * Check the permission to remove a hard link to a file.
360 * @dir contains the path structure of parent directory of the file.
361 * @dentry contains the dentry structure for file to be unlinked.
362 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 * @inode_symlink:
364 * Check the permission to create a symbolic link to a file.
365 * @dir contains the inode structure of parent directory of the symbolic link.
366 * @dentry contains the dentry structure of the symbolic link.
367 * @old_name contains the pathname of file.
368 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900369 * @path_symlink:
370 * Check the permission to create a symbolic link to a file.
371 * @dir contains the path structure of parent directory of
372 * the symbolic link.
373 * @dentry contains the dentry structure of the symbolic link.
374 * @old_name contains the pathname of file.
375 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 * @inode_mkdir:
377 * Check permissions to create a new directory in the existing directory
Eric Paris7b41b172008-04-23 14:10:25 -0400378 * associated with inode strcture @dir.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 * @dir containst the inode structure of parent of the directory 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.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900383 * @path_mkdir:
384 * Check permissions to create a new directory in the existing directory
385 * associated with path strcture @path.
386 * @dir containst the path structure of parent of the directory
387 * to be created.
388 * @dentry contains the dentry structure of new directory.
389 * @mode contains the mode of new directory.
390 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391 * @inode_rmdir:
392 * Check the permission to remove a directory.
393 * @dir contains the inode structure of parent of the directory to be removed.
394 * @dentry contains the dentry structure of directory to be removed.
395 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900396 * @path_rmdir:
397 * Check the permission to remove a directory.
398 * @dir contains the path structure of parent of the directory to be
399 * removed.
400 * @dentry contains the dentry structure of directory to be removed.
401 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 * @inode_mknod:
403 * Check permissions when creating a special file (or a socket or a fifo
404 * file created via the mknod system call). Note that if mknod operation
405 * is being done for a regular file, then the create hook will be called
406 * and not this hook.
407 * @dir contains the inode 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.
Michael Opdenacker59c51592007-05-09 08:57:56 +0200410 * @dev contains the device number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900412 * @path_mknod:
413 * Check permissions when creating a file. Note that this hook is called
414 * even if mknod operation is being done for a regular file.
415 * @dir contains the path structure of parent of the new file.
416 * @dentry contains the dentry structure of the new file.
417 * @mode contains the mode of the new file.
418 * @dev contains the undecoded device number. Use new_decode_dev() to get
419 * the decoded device number.
420 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 * @inode_rename:
422 * Check for permission to rename a file or directory.
423 * @old_dir contains the inode structure for parent of the old link.
424 * @old_dentry contains the dentry structure of the old link.
425 * @new_dir contains the inode structure for parent of the new link.
426 * @new_dentry contains the dentry structure of the new link.
427 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900428 * @path_rename:
429 * Check for permission to rename a file or directory.
430 * @old_dir contains the path structure for parent of the old link.
431 * @old_dentry contains the dentry structure of the old link.
432 * @new_dir contains the path structure for parent of the new link.
433 * @new_dentry contains the dentry structure of the new link.
434 * Return 0 if permission is granted.
Tetsuo Handa89eda062009-10-04 21:49:47 +0900435 * @path_chmod:
436 * Check for permission to change DAC's permission of a file or directory.
437 * @dentry contains the dentry structure.
438 * @mnt contains the vfsmnt structure.
439 * @mode contains DAC's mode.
440 * Return 0 if permission is granted.
441 * @path_chown:
442 * Check for permission to change owner/group of a file or directory.
443 * @path contains the path structure.
444 * @uid contains new owner's ID.
445 * @gid contains new group's ID.
446 * Return 0 if permission is granted.
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900447 * @path_chroot:
448 * Check for permission to change root directory.
449 * @path contains the path structure.
450 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451 * @inode_readlink:
452 * Check the permission to read the symbolic link.
453 * @dentry contains the dentry structure for the file link.
454 * Return 0 if permission is granted.
455 * @inode_follow_link:
456 * Check permission to follow a symbolic link when looking up a pathname.
457 * @dentry contains the dentry structure for the link.
458 * @nd contains the nameidata structure for the parent directory.
459 * Return 0 if permission is granted.
460 * @inode_permission:
461 * Check permission before accessing an inode. This hook is called by the
462 * existing Linux permission function, so a security module can use it to
463 * provide additional checking for existing Linux permission checks.
464 * Notice that this hook is called when a file is opened (as well as many
465 * other operations), whereas the file_security_ops permission hook is
466 * called when the actual read/write operations are performed.
467 * @inode contains the inode structure to check.
468 * @mask contains the permission mask.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469 * Return 0 if permission is granted.
470 * @inode_setattr:
471 * Check permission before setting file attributes. Note that the kernel
472 * call to notify_change is performed from several locations, whenever
473 * file attributes change (such as when a file is truncated, chown/chmod
474 * operations, transferring disk quotas, etc).
475 * @dentry contains the dentry structure for the file.
476 * @attr is the iattr structure containing the new file attributes.
477 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900478 * @path_truncate:
479 * Check permission before truncating a file.
480 * @path contains the path structure for the file.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900481 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 * @inode_getattr:
483 * Check permission before obtaining file attributes.
484 * @mnt is the vfsmount where the dentry was looked up
485 * @dentry contains the dentry structure for the file.
486 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487 * @inode_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400488 * Check permission before setting the extended attributes
489 * @value identified by @name for @dentry.
490 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 * @inode_post_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400492 * Update inode security field after successful setxattr operation.
493 * @value identified by @name for @dentry.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 * @inode_getxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400495 * Check permission before obtaining the extended attributes
496 * identified by @name for @dentry.
497 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 * @inode_listxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400499 * Check permission before obtaining the list of extended attribute
500 * names for @dentry.
501 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502 * @inode_removexattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400503 * Check permission before removing the extended attribute
504 * identified by @name for @dentry.
505 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506 * @inode_getsecurity:
David P. Quigley42492592008-02-04 22:29:39 -0800507 * Retrieve a copy of the extended attribute representation of the
508 * security label associated with @name for @inode via @buffer. Note that
509 * @name is the remainder of the attribute name after the security prefix
510 * has been removed. @alloc is used to specify of the call should return a
511 * value via the buffer or just the value length Return size of buffer on
512 * success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513 * @inode_setsecurity:
514 * Set the security label associated with @name for @inode from the
515 * extended attribute value @value. @size indicates the size of the
516 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
Eric Paris7b41b172008-04-23 14:10:25 -0400517 * Note that @name is the remainder of the attribute name after the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518 * security. prefix has been removed.
519 * Return 0 on success.
520 * @inode_listsecurity:
521 * Copy the extended attribute names for the security labels
522 * associated with @inode into @buffer. The maximum size of @buffer
523 * is specified by @buffer_size. @buffer may be NULL to request
524 * the size of the buffer required.
525 * Returns number of bytes used/required on success.
Serge E. Hallynb5376772007-10-16 23:31:36 -0700526 * @inode_need_killpriv:
527 * Called when an inode has been changed.
528 * @dentry is the dentry being changed.
529 * Return <0 on error to abort the inode change operation.
530 * Return 0 if inode_killpriv does not need to be called.
531 * Return >0 if inode_killpriv does need to be called.
532 * @inode_killpriv:
533 * The setuid bit is being removed. Remove similar security labels.
534 * Called with the dentry->d_inode->i_mutex held.
535 * @dentry is the dentry being changed.
536 * Return 0 on success. If error is returned, then the operation
537 * causing setuid bit removal is failed.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200538 * @inode_getsecid:
539 * Get the secid associated with the node.
540 * @inode contains a pointer to the inode.
541 * @secid contains a pointer to the location where result will be saved.
542 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543 *
544 * Security hooks for file operations
545 *
546 * @file_permission:
547 * Check file permissions before accessing an open file. This hook is
548 * called by various operations that read or write files. A security
549 * module can use this hook to perform additional checking on these
550 * operations, e.g. to revalidate permissions on use to support privilege
551 * bracketing or policy changes. Notice that this hook is used when the
552 * actual read/write operations are performed, whereas the
553 * inode_security_ops hook is called when a file is opened (as well as
554 * many other operations).
555 * Caveat: Although this hook can be used to revalidate permissions for
556 * various system call operations that read or write files, it does not
557 * address the revalidation of permissions for memory-mapped files.
558 * Security modules must handle this separately if they need such
559 * revalidation.
560 * @file contains the file structure being accessed.
561 * @mask contains the requested permissions.
562 * Return 0 if permission is granted.
563 * @file_alloc_security:
564 * Allocate and attach a security structure to the file->f_security field.
565 * The security field is initialized to NULL when the structure is first
566 * created.
567 * @file contains the file structure to secure.
568 * Return 0 if the hook is successful and permission is granted.
569 * @file_free_security:
570 * Deallocate and free any security structures stored in file->f_security.
571 * @file contains the file structure being modified.
572 * @file_ioctl:
573 * @file contains the file structure.
574 * @cmd contains the operation to perform.
575 * @arg contains the operational arguments.
576 * Check permission for an ioctl operation on @file. Note that @arg can
577 * sometimes represents a user space pointer; in other cases, it may be a
578 * simple integer value. When @arg represents a user space pointer, it
579 * should never be used by the security module.
580 * Return 0 if permission is granted.
581 * @file_mmap :
582 * Check permissions for a mmap operation. The @file may be NULL, e.g.
583 * if mapping anonymous memory.
584 * @file contains the file structure for file to map (may be NULL).
585 * @reqprot contains the protection requested by the application.
586 * @prot contains the protection that will be applied by the kernel.
587 * @flags contains the operational flags.
588 * Return 0 if permission is granted.
589 * @file_mprotect:
590 * Check permissions before changing memory access permissions.
591 * @vma contains the memory region to modify.
592 * @reqprot contains the protection requested by the application.
593 * @prot contains the protection that will be applied by the kernel.
594 * Return 0 if permission is granted.
595 * @file_lock:
596 * Check permission before performing file locking operations.
597 * Note: this hook mediates both flock and fcntl style locks.
598 * @file contains the file structure.
599 * @cmd contains the posix-translated lock operation to perform
600 * (e.g. F_RDLCK, F_WRLCK).
601 * Return 0 if permission is granted.
602 * @file_fcntl:
603 * Check permission before allowing the file operation specified by @cmd
604 * from being performed on the file @file. Note that @arg can sometimes
605 * represents a user space pointer; in other cases, it may be a simple
606 * integer value. When @arg represents a user space pointer, it should
607 * never be used by the security module.
608 * @file contains the file structure.
609 * @cmd contains the operation to be performed.
610 * @arg contains the operational arguments.
611 * Return 0 if permission is granted.
612 * @file_set_fowner:
613 * Save owner security information (typically from current->security) in
614 * file->f_security for later use by the send_sigiotask hook.
615 * @file contains the file structure to update.
616 * Return 0 on success.
617 * @file_send_sigiotask:
618 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
619 * process @tsk. Note that this hook is sometimes called from interrupt.
620 * Note that the fown_struct, @fown, is never outside the context of a
621 * struct file, so the file structure (and associated security information)
622 * can always be obtained:
Robert P. J. Dayb385a142007-02-10 01:46:25 -0800623 * container_of(fown, struct file, f_owner)
Eric Paris7b41b172008-04-23 14:10:25 -0400624 * @tsk contains the structure of task receiving signal.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625 * @fown contains the file owner information.
626 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
627 * Return 0 if permission is granted.
628 * @file_receive:
629 * This hook allows security modules to control the ability of a process
630 * to receive an open file descriptor via socket IPC.
631 * @file contains the file structure being received.
632 * Return 0 if permission is granted.
633 *
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +0900634 * Security hook for dentry
635 *
636 * @dentry_open
637 * Save open-time permission checking state for later use upon
638 * file_permission, and recheck access if anything has changed
639 * since inode_permission.
640 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641 * Security hooks for task operations.
642 *
643 * @task_create:
644 * Check permission before creating a child process. See the clone(2)
645 * manual page for definitions of the @clone_flags.
646 * @clone_flags contains the flags indicating what should be shared.
647 * Return 0 if permission is granted.
David Howellsee18d642009-09-02 09:14:21 +0100648 * @cred_alloc_blank:
649 * @cred points to the credentials.
650 * @gfp indicates the atomicity of any memory allocations.
651 * Only allocate sufficient memory and attach to @cred such that
652 * cred_transfer() will not get ENOMEM.
David Howellsf1752ee2008-11-14 10:39:17 +1100653 * @cred_free:
654 * @cred points to the credentials.
655 * Deallocate and clear the cred->security field in a set of credentials.
David Howellsd84f4f92008-11-14 10:39:23 +1100656 * @cred_prepare:
657 * @new points to the new credentials.
658 * @old points to the original credentials.
659 * @gfp indicates the atomicity of any memory allocations.
660 * Prepare a new set of credentials by copying the data from the old set.
David Howellsee18d642009-09-02 09:14:21 +0100661 * @cred_transfer:
662 * @new points to the new credentials.
663 * @old points to the original credentials.
664 * Transfer data from original creds to new creds
David Howells3a3b7ce2008-11-14 10:39:28 +1100665 * @kernel_act_as:
666 * Set the credentials for a kernel service to act as (subjective context).
667 * @new points to the credentials to be modified.
668 * @secid specifies the security ID to be set
669 * The current task must be the one that nominated @secid.
670 * Return 0 if successful.
671 * @kernel_create_files_as:
672 * Set the file creation context in a set of credentials to be the same as
673 * the objective context of the specified inode.
674 * @new points to the credentials to be modified.
675 * @inode points to the inode to use as a reference.
676 * The current task must be the one that nominated @inode.
677 * Return 0 if successful.
Eric Paris91884992009-08-13 09:44:57 -0400678 * @kernel_module_request:
679 * Ability to trigger the kernel to automatically upcall to userspace for
680 * userspace to load a kernel module with the given name.
Eric Parisdd8dbf22009-11-03 16:35:32 +1100681 * @kmod_name name of the module requested by the kernel
James Morrisf322abf2009-08-14 11:19:29 +1000682 * Return 0 if successful.
David Howellsd84f4f92008-11-14 10:39:23 +1100683 * @task_fix_setuid:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684 * Update the module's state after setting one or more of the user
685 * identity attributes of the current process. The @flags parameter
686 * indicates which of the set*uid system calls invoked this hook. If
David Howellsd84f4f92008-11-14 10:39:23 +1100687 * @new is the set of credentials that will be installed. Modifications
688 * should be made to this rather than to @current->cred.
689 * @old is the set of credentials that are being replaces
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690 * @flags contains one of the LSM_SETID_* values.
691 * Return 0 on success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692 * @task_setpgid:
693 * Check permission before setting the process group identifier of the
694 * process @p to @pgid.
695 * @p contains the task_struct for process being modified.
696 * @pgid contains the new pgid.
697 * Return 0 if permission is granted.
698 * @task_getpgid:
699 * Check permission before getting the process group identifier of the
700 * process @p.
701 * @p contains the task_struct for the process.
702 * Return 0 if permission is granted.
703 * @task_getsid:
704 * Check permission before getting the session identifier of the process
705 * @p.
706 * @p contains the task_struct for the process.
707 * Return 0 if permission is granted.
David Quigleyf9008e42006-06-30 01:55:46 -0700708 * @task_getsecid:
709 * Retrieve the security identifier of the process @p.
710 * @p contains the task_struct for the process and place is into @secid.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200711 * In case of failure, @secid will be set to zero.
712 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713 * @task_setnice:
714 * Check permission before setting the nice value of @p to @nice.
715 * @p contains the task_struct of process.
716 * @nice contains the new nice value.
717 * Return 0 if permission is granted.
James Morris03e68062006-06-23 02:03:58 -0700718 * @task_setioprio
719 * Check permission before setting the ioprio value of @p to @ioprio.
720 * @p contains the task_struct of process.
721 * @ioprio contains the new ioprio value
722 * Return 0 if permission is granted.
David Quigleya1836a42006-06-30 01:55:49 -0700723 * @task_getioprio
724 * Check permission before getting the ioprio value of @p.
725 * @p contains the task_struct of process.
726 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 * @task_setrlimit:
728 * Check permission before setting the resource limits of the current
729 * process for @resource to @new_rlim. The old resource limit values can
730 * be examined by dereferencing (current->signal->rlim + resource).
731 * @resource contains the resource whose limit is being set.
732 * @new_rlim contains the new limits for @resource.
733 * Return 0 if permission is granted.
734 * @task_setscheduler:
735 * Check permission before setting scheduling policy and/or parameters of
736 * process @p based on @policy and @lp.
737 * @p contains the task_struct for process.
738 * @policy contains the scheduling policy.
739 * @lp contains the scheduling parameters.
740 * Return 0 if permission is granted.
741 * @task_getscheduler:
742 * Check permission before obtaining scheduling information for process
743 * @p.
744 * @p contains the task_struct for process.
745 * Return 0 if permission is granted.
David Quigley35601542006-06-23 02:04:01 -0700746 * @task_movememory
747 * Check permission before moving memory owned by process @p.
748 * @p contains the task_struct for process.
749 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750 * @task_kill:
751 * Check permission before sending signal @sig to @p. @info can be NULL,
752 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
753 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
754 * from the kernel and should typically be permitted.
755 * SIGIO signals are handled separately by the send_sigiotask hook in
756 * file_security_ops.
757 * @p contains the task_struct for process.
758 * @info contains the signal information.
759 * @sig contains the signal value.
David Quigleyf9008e42006-06-30 01:55:46 -0700760 * @secid contains the sid of the process where the signal originated
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761 * Return 0 if permission is granted.
762 * @task_wait:
763 * Check permission before allowing a process to reap a child process @p
764 * and collect its status information.
765 * @p contains the task_struct for process.
766 * Return 0 if permission is granted.
767 * @task_prctl:
768 * Check permission before performing a process control operation on the
769 * current process.
770 * @option contains the operation.
771 * @arg2 contains a argument.
772 * @arg3 contains a argument.
773 * @arg4 contains a argument.
774 * @arg5 contains a argument.
David Howellsd84f4f92008-11-14 10:39:23 +1100775 * Return -ENOSYS if no-one wanted to handle this op, any other value to
776 * cause prctl() to return immediately with that value.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777 * @task_to_inode:
Eric Paris7b41b172008-04-23 14:10:25 -0400778 * Set the security attributes for an inode based on an associated task's
779 * security attributes, e.g. for /proc/pid inodes.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780 * @p contains the task_struct for the task.
781 * @inode contains the inode structure for the inode.
782 *
783 * Security hooks for Netlink messaging.
784 *
785 * @netlink_send:
786 * Save security information for a netlink message so that permission
787 * checking can be performed when the message is processed. The security
788 * information can be saved using the eff_cap field of the
Eric Paris7b41b172008-04-23 14:10:25 -0400789 * netlink_skb_parms structure. Also may be used to provide fine
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790 * grained control over message transmission.
791 * @sk associated sock of task sending the message.,
792 * @skb contains the sk_buff structure for the netlink message.
793 * Return 0 if the information was successfully saved and message
794 * is allowed to be transmitted.
795 * @netlink_recv:
796 * Check permission before processing the received netlink message in
797 * @skb.
798 * @skb contains the sk_buff structure for the netlink message.
Darrel Goeddelc7bdb542006-06-27 13:26:11 -0700799 * @cap indicates the capability required
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800 * Return 0 if permission is granted.
801 *
802 * Security hooks for Unix domain networking.
803 *
804 * @unix_stream_connect:
805 * Check permissions before establishing a Unix domain stream connection
806 * between @sock and @other.
David S. Miller3610cda2011-01-05 15:38:53 -0800807 * @sock contains the sock structure.
808 * @other contains the peer sock structure.
809 * @newsk contains the new sock structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810 * Return 0 if permission is granted.
811 * @unix_may_send:
812 * Check permissions before connecting or sending datagrams from @sock to
813 * @other.
814 * @sock contains the socket structure.
815 * @sock contains the peer socket structure.
816 * Return 0 if permission is granted.
817 *
818 * The @unix_stream_connect and @unix_may_send hooks were necessary because
819 * Linux provides an alternative to the conventional file name space for Unix
820 * domain sockets. Whereas binding and connecting to sockets in the file name
821 * space is mediated by the typical file permissions (and caught by the mknod
822 * and permission hooks in inode_security_ops), binding and connecting to
823 * sockets in the abstract name space is completely unmediated. Sufficient
824 * control of Unix domain sockets in the abstract name space isn't possible
825 * using only the socket layer hooks, since we need to know the actual target
826 * socket, which is not looked up until we are inside the af_unix code.
827 *
828 * Security hooks for socket operations.
829 *
830 * @socket_create:
831 * Check permissions prior to creating a new socket.
832 * @family contains the requested protocol family.
833 * @type contains the requested communications type.
834 * @protocol contains the requested protocol.
835 * @kern set to 1 if a kernel socket.
836 * Return 0 if permission is granted.
837 * @socket_post_create:
838 * This hook allows a module to update or allocate a per-socket security
839 * structure. Note that the security field was not added directly to the
840 * socket structure, but rather, the socket security information is stored
841 * in the associated inode. Typically, the inode alloc_security hook will
842 * allocate and and attach security information to
843 * sock->inode->i_security. This hook may be used to update the
844 * sock->inode->i_security field with additional information that wasn't
845 * available when the inode was allocated.
846 * @sock contains the newly created socket structure.
847 * @family contains the requested protocol family.
848 * @type contains the requested communications type.
849 * @protocol contains the requested protocol.
850 * @kern set to 1 if a kernel socket.
851 * @socket_bind:
852 * Check permission before socket protocol layer bind operation is
853 * performed and the socket @sock is bound to the address specified in the
854 * @address parameter.
855 * @sock contains the socket structure.
856 * @address contains the address to bind to.
857 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400858 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859 * @socket_connect:
860 * Check permission before socket protocol layer connect operation
861 * attempts to connect socket @sock to a remote address, @address.
862 * @sock contains the socket structure.
863 * @address contains the address of remote endpoint.
864 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400865 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 * @socket_listen:
867 * Check permission before socket protocol layer listen operation.
868 * @sock contains the socket structure.
869 * @backlog contains the maximum length for the pending connection queue.
870 * Return 0 if permission is granted.
871 * @socket_accept:
872 * Check permission before accepting a new connection. Note that the new
873 * socket, @newsock, has been created and some information copied to it,
874 * but the accept operation has not actually been performed.
875 * @sock contains the listening socket structure.
876 * @newsock contains the newly created server socket for connection.
877 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878 * @socket_sendmsg:
879 * Check permission before transmitting a message to another socket.
880 * @sock contains the socket structure.
881 * @msg contains the message to be transmitted.
882 * @size contains the size of message.
883 * Return 0 if permission is granted.
884 * @socket_recvmsg:
885 * Check permission before receiving a message from a socket.
886 * @sock contains the socket structure.
887 * @msg contains the message structure.
888 * @size contains the size of message structure.
889 * @flags contains the operational flags.
Eric Paris7b41b172008-04-23 14:10:25 -0400890 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891 * @socket_getsockname:
892 * Check permission before the local address (name) of the socket object
893 * @sock is retrieved.
894 * @sock contains the socket structure.
895 * Return 0 if permission is granted.
896 * @socket_getpeername:
897 * Check permission before the remote address (name) of a socket object
898 * @sock is retrieved.
899 * @sock contains the socket structure.
900 * Return 0 if permission is granted.
901 * @socket_getsockopt:
902 * Check permissions before retrieving the options associated with socket
903 * @sock.
904 * @sock contains the socket structure.
905 * @level contains the protocol level to retrieve option from.
906 * @optname contains the name of option to retrieve.
907 * Return 0 if permission is granted.
908 * @socket_setsockopt:
909 * Check permissions before setting the options associated with socket
910 * @sock.
911 * @sock contains the socket structure.
912 * @level contains the protocol level to set options for.
913 * @optname contains the name of the option to set.
Eric Paris7b41b172008-04-23 14:10:25 -0400914 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915 * @socket_shutdown:
916 * Checks permission before all or part of a connection on the socket
917 * @sock is shut down.
918 * @sock contains the socket structure.
919 * @how contains the flag indicating how future sends and receives are handled.
920 * Return 0 if permission is granted.
921 * @socket_sock_rcv_skb:
922 * Check permissions on incoming network packets. This hook is distinct
923 * from Netfilter's IP input hooks since it is the first time that the
924 * incoming sk_buff @skb has been associated with a particular socket, @sk.
Tetsuo Handa0ed73182010-01-06 09:23:54 +0900925 * Must not sleep inside this hook because some callers hold spinlocks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926 * @sk contains the sock (not socket) associated with the incoming sk_buff.
927 * @skb contains the incoming network data.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200928 * @socket_getpeersec_stream:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929 * This hook allows the security module to provide peer socket security
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200930 * state for unix or connected tcp sockets to userspace via getsockopt
931 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
932 * socket is associated with an ipsec SA.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933 * @sock is the local socket.
934 * @optval userspace memory where the security state is to be copied.
935 * @optlen userspace int where the module should copy the actual length
936 * of the security state.
937 * @len as input is the maximum length to copy to userspace provided
938 * by the caller.
939 * Return 0 if all is well, otherwise, typical getsockopt return
940 * values.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200941 * @socket_getpeersec_dgram:
Eric Paris7b41b172008-04-23 14:10:25 -0400942 * This hook allows the security module to provide peer socket security
943 * state for udp sockets on a per-packet basis to userspace via
944 * getsockopt SO_GETPEERSEC. The application must first have indicated
945 * the IP_PASSSEC option via getsockopt. It can then retrieve the
946 * security state returned by this hook for a packet via the SCM_SECURITY
947 * ancillary message type.
948 * @skb is the skbuff for the packet being queried
949 * @secdata is a pointer to a buffer in which to copy the security data
950 * @seclen is the maximum length for @secdata
951 * Return 0 on success, error on failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952 * @sk_alloc_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400953 * Allocate and attach a security structure to the sk->sk_security field,
954 * which is used to copy security attributes between local stream sockets.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955 * @sk_free_security:
956 * Deallocate security structure.
Venkat Yekkirala892c1412006-08-04 23:08:56 -0700957 * @sk_clone_security:
958 * Clone/copy security structure.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700959 * @sk_getsecid:
960 * Retrieve the LSM-specific secid for the sock to enable caching of network
Trent Jaegerdf718372005-12-13 23:12:27 -0800961 * authorizations.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700962 * @sock_graft:
963 * Sets the socket's isec sid to the sock's sid.
964 * @inet_conn_request:
965 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
966 * @inet_csk_clone:
967 * Sets the new child socket's sid to the openreq sid.
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600968 * @inet_conn_established:
Eric Paris7b41b172008-04-23 14:10:25 -0400969 * Sets the connection's peersid to the secmark on skb.
Eric Paris2606fd12010-10-13 16:24:41 -0400970 * @secmark_relabel_packet:
971 * check if the process should be allowed to relabel packets to the given secid
972 * @security_secmark_refcount_inc
973 * tells the LSM to increment the number of secmark labeling rules loaded
974 * @security_secmark_refcount_dec
975 * tells the LSM to decrement the number of secmark labeling rules loaded
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700976 * @req_classify_flow:
977 * Sets the flow's sid to the openreq sid.
Paul Moore2b980db2009-08-28 18:12:43 -0400978 * @tun_dev_create:
979 * Check permissions prior to creating a new TUN device.
980 * @tun_dev_post_create:
981 * This hook allows a module to update or allocate a per-socket security
982 * structure.
983 * @sk contains the newly created sock structure.
984 * @tun_dev_attach:
985 * Check permissions prior to attaching to a persistent TUN device. This
986 * hook can also be used by the module to update any security state
987 * associated with the TUN device's sock structure.
988 * @sk contains the existing sock structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800989 *
990 * Security hooks for XFRM operations.
991 *
992 * @xfrm_policy_alloc_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700993 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
994 * Database used by the XFRM system.
Trent Jaegerdf718372005-12-13 23:12:27 -0800995 * @sec_ctx contains the security context information being provided by
996 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700997 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600998 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -0800999 * Return 0 if operation was successful (memory to allocate, legal context)
1000 * @xfrm_policy_clone_security:
Paul Moore03e1ad72008-04-12 19:07:52 -07001001 * @old_ctx contains an existing xfrm_sec_ctx.
1002 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
1003 * Allocate a security structure in new_ctxp that contains the
1004 * information from the old_ctx structure.
Trent Jaegerdf718372005-12-13 23:12:27 -08001005 * Return 0 if operation was successful (memory to allocate).
1006 * @xfrm_policy_free_security:
Paul Moore03e1ad72008-04-12 19:07:52 -07001007 * @ctx contains the xfrm_sec_ctx
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001008 * Deallocate xp->security.
1009 * @xfrm_policy_delete_security:
Paul Moore03e1ad72008-04-12 19:07:52 -07001010 * @ctx contains the xfrm_sec_ctx.
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001011 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -08001012 * @xfrm_state_alloc_security:
1013 * @x contains the xfrm_state being added to the Security Association
1014 * Database by the XFRM system.
1015 * @sec_ctx contains the security context information being provided by
1016 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001017 * @secid contains the secid from which to take the mls portion of the context.
1018 * Allocate a security structure to the x->security field; the security
1019 * field is initialized to NULL when the xfrm_state is allocated. Set the
1020 * context to correspond to either sec_ctx or polsec, with the mls portion
1021 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -08001022 * Return 0 if operation was successful (memory to allocate, legal context).
1023 * @xfrm_state_free_security:
1024 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001025 * Deallocate x->security.
1026 * @xfrm_state_delete_security:
1027 * @x contains the xfrm_state.
1028 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -08001029 * @xfrm_policy_lookup:
Paul Moore03e1ad72008-04-12 19:07:52 -07001030 * @ctx contains the xfrm_sec_ctx for which the access control is being
Trent Jaegerdf718372005-12-13 23:12:27 -08001031 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001032 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -08001033 * access to the policy xp.
1034 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001035 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -08001036 * XFRMs on a packet. The hook is called when selecting either a
1037 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -05001038 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
1039 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001040 * @xfrm_state_pol_flow_match:
1041 * @x contains the state to match.
1042 * @xp contains the policy to check for a match.
1043 * @fl contains the flow to check for a match.
1044 * Return 1 if there is a match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001045 * @xfrm_decode_session:
1046 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001047 * @secid points to the flow key secid to set.
1048 * @ckall says if all xfrms used should be checked for same secid.
1049 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050 *
David Howells29db9192005-10-30 15:02:44 -08001051 * Security hooks affecting all Key Management operations
1052 *
1053 * @key_alloc:
1054 * Permit allocation of a key and assign security data. Note that key does
1055 * not have a serial number assigned at this point.
1056 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -07001057 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -08001058 * Return 0 if permission is granted, -ve error otherwise.
1059 * @key_free:
1060 * Notification of destruction; free security data.
1061 * @key points to the key.
1062 * No return value.
1063 * @key_permission:
1064 * See whether a specific operational right is granted to a process on a
Eric Paris7b41b172008-04-23 14:10:25 -04001065 * key.
David Howells29db9192005-10-30 15:02:44 -08001066 * @key_ref refers to the key (key pointer + possession attribute bit).
David Howellsd84f4f92008-11-14 10:39:23 +11001067 * @cred points to the credentials to provide the context against which to
Eric Paris7b41b172008-04-23 14:10:25 -04001068 * evaluate the security data on the key.
David Howells29db9192005-10-30 15:02:44 -08001069 * @perm describes the combination of permissions required of this key.
Tetsuo Handaad9c2b02010-11-30 11:06:47 +09001070 * Return 0 if permission is granted, -ve error otherwise.
David Howells70a5bb72008-04-29 01:01:26 -07001071 * @key_getsecurity:
1072 * Get a textual representation of the security context attached to a key
1073 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1074 * allocates the storage for the NUL-terminated string and the caller
1075 * should free it.
1076 * @key points to the key to be queried.
1077 * @_buffer points to a pointer that should be set to point to the
1078 * resulting string (if no label or an error occurs).
1079 * Return the length of the string (including terminating NUL) or -ve if
1080 * an error.
1081 * May also return 0 (and a NULL buffer pointer) if there is no label.
David Howells29db9192005-10-30 15:02:44 -08001082 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083 * Security hooks affecting all System V IPC operations.
1084 *
1085 * @ipc_permission:
1086 * Check permissions for access to IPC
1087 * @ipcp contains the kernel IPC permission structure
1088 * @flag contains the desired (requested) permission set
1089 * Return 0 if permission is granted.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001090 * @ipc_getsecid:
1091 * Get the secid associated with the ipc object.
1092 * @ipcp contains the kernel IPC permission structure.
1093 * @secid contains a pointer to the location where result will be saved.
1094 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095 *
1096 * Security hooks for individual messages held in System V IPC message queues
1097 * @msg_msg_alloc_security:
1098 * Allocate and attach a security structure to the msg->security field.
1099 * The security field is initialized to NULL when the structure is first
1100 * created.
1101 * @msg contains the message structure to be modified.
1102 * Return 0 if operation was successful and permission is granted.
1103 * @msg_msg_free_security:
1104 * Deallocate the security structure for this message.
1105 * @msg contains the message structure to be modified.
1106 *
1107 * Security hooks for System V IPC Message Queues
1108 *
1109 * @msg_queue_alloc_security:
1110 * Allocate and attach a security structure to the
1111 * msq->q_perm.security field. The security field is initialized to
1112 * NULL when the structure is first created.
1113 * @msq contains the message queue structure to be modified.
1114 * Return 0 if operation was successful and permission is granted.
1115 * @msg_queue_free_security:
1116 * Deallocate security structure for this message queue.
1117 * @msq contains the message queue structure to be modified.
1118 * @msg_queue_associate:
1119 * Check permission when a message queue is requested through the
1120 * msgget system call. This hook is only called when returning the
1121 * message queue identifier for an existing message queue, not when a
1122 * new message queue is created.
1123 * @msq contains the message queue to act upon.
1124 * @msqflg contains the operation control flags.
1125 * Return 0 if permission is granted.
1126 * @msg_queue_msgctl:
1127 * Check permission when a message control operation specified by @cmd
1128 * is to be performed on the message queue @msq.
1129 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1130 * @msq contains the message queue to act upon. May be NULL.
1131 * @cmd contains the operation to be performed.
Eric Paris7b41b172008-04-23 14:10:25 -04001132 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133 * @msg_queue_msgsnd:
1134 * Check permission before a message, @msg, is enqueued on the message
1135 * queue, @msq.
1136 * @msq contains the message queue to send message to.
1137 * @msg contains the message to be enqueued.
1138 * @msqflg contains operational flags.
1139 * Return 0 if permission is granted.
1140 * @msg_queue_msgrcv:
1141 * Check permission before a message, @msg, is removed from the message
Eric Paris7b41b172008-04-23 14:10:25 -04001142 * queue, @msq. The @target task structure contains a pointer to the
1143 * process that will be receiving the message (not equal to the current
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144 * process when inline receives are being performed).
1145 * @msq contains the message queue to retrieve message from.
1146 * @msg contains the message destination.
1147 * @target contains the task structure for recipient process.
1148 * @type contains the type of message requested.
1149 * @mode contains the operational flags.
1150 * Return 0 if permission is granted.
1151 *
1152 * Security hooks for System V Shared Memory Segments
1153 *
1154 * @shm_alloc_security:
1155 * Allocate and attach a security structure to the shp->shm_perm.security
1156 * field. The security field is initialized to NULL when the structure is
1157 * first created.
1158 * @shp contains the shared memory structure to be modified.
1159 * Return 0 if operation was successful and permission is granted.
1160 * @shm_free_security:
1161 * Deallocate the security struct for this memory segment.
1162 * @shp contains the shared memory structure to be modified.
1163 * @shm_associate:
1164 * Check permission when a shared memory region is requested through the
1165 * shmget system call. This hook is only called when returning the shared
1166 * memory region identifier for an existing region, not when a new shared
1167 * memory region is created.
1168 * @shp contains the shared memory structure to be modified.
1169 * @shmflg contains the operation control flags.
1170 * Return 0 if permission is granted.
1171 * @shm_shmctl:
1172 * Check permission when a shared memory control operation specified by
1173 * @cmd is to be performed on the shared memory region @shp.
1174 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1175 * @shp contains shared memory structure to be modified.
1176 * @cmd contains the operation to be performed.
1177 * Return 0 if permission is granted.
1178 * @shm_shmat:
1179 * Check permissions prior to allowing the shmat system call to attach the
1180 * shared memory segment @shp to the data segment of the calling process.
1181 * The attaching address is specified by @shmaddr.
1182 * @shp contains the shared memory structure to be modified.
1183 * @shmaddr contains the address to attach memory region to.
1184 * @shmflg contains the operational flags.
1185 * Return 0 if permission is granted.
1186 *
1187 * Security hooks for System V Semaphores
1188 *
1189 * @sem_alloc_security:
1190 * Allocate and attach a security structure to the sma->sem_perm.security
1191 * field. The security field is initialized to NULL when the structure is
1192 * first created.
1193 * @sma contains the semaphore structure
1194 * Return 0 if operation was successful and permission is granted.
1195 * @sem_free_security:
1196 * deallocate security struct for this semaphore
1197 * @sma contains the semaphore structure.
1198 * @sem_associate:
1199 * Check permission when a semaphore is requested through the semget
1200 * system call. This hook is only called when returning the semaphore
1201 * identifier for an existing semaphore, not when a new one must be
1202 * created.
1203 * @sma contains the semaphore structure.
1204 * @semflg contains the operation control flags.
1205 * Return 0 if permission is granted.
1206 * @sem_semctl:
1207 * Check permission when a semaphore operation specified by @cmd is to be
Eric Paris7b41b172008-04-23 14:10:25 -04001208 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209 * IPC_INFO or SEM_INFO.
1210 * @sma contains the semaphore structure. May be NULL.
1211 * @cmd contains the operation to be performed.
1212 * Return 0 if permission is granted.
1213 * @sem_semop
1214 * Check permissions before performing operations on members of the
Eric Paris7b41b172008-04-23 14:10:25 -04001215 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1216 * may be modified.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217 * @sma contains the semaphore structure.
1218 * @sops contains the operations to perform.
1219 * @nsops contains the number of operations to perform.
1220 * @alter contains the flag indicating whether changes are to be made.
1221 * Return 0 if permission is granted.
1222 *
Ingo Molnar9e488582009-05-07 19:26:19 +10001223 * @ptrace_access_check:
David Howells5cd9c582008-08-14 11:37:28 +01001224 * Check permission before allowing the current process to trace the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225 * @child process.
1226 * Security modules may also want to perform a process tracing check
1227 * during an execve in the set_security or apply_creds hooks of
David Howellsd84f4f92008-11-14 10:39:23 +11001228 * tracing check during an execve in the bprm_set_creds hook of
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 * binprm_security_ops if the process is being traced and its security
1230 * attributes would be changed by the execve.
David Howells5cd9c582008-08-14 11:37:28 +01001231 * @child contains the task_struct structure for the target process.
Stephen Smalley006ebb42008-05-19 08:32:49 -04001232 * @mode contains the PTRACE_MODE flags indicating the form of access.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001233 * Return 0 if permission is granted.
David Howells5cd9c582008-08-14 11:37:28 +01001234 * @ptrace_traceme:
1235 * Check that the @parent process has sufficient permission to trace the
1236 * current process before allowing the current process to present itself
1237 * to the @parent process for tracing.
Ingo Molnar9e488582009-05-07 19:26:19 +10001238 * The parent process will still have to undergo the ptrace_access_check
David Howells5cd9c582008-08-14 11:37:28 +01001239 * checks before it is allowed to trace this one.
1240 * @parent contains the task_struct structure for debugger process.
1241 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242 * @capget:
1243 * Get the @effective, @inheritable, and @permitted capability sets for
1244 * the @target process. The hook may also perform permission checking to
1245 * determine if the current process is allowed to see the capability sets
1246 * of the @target process.
1247 * @target contains the task_struct structure for target process.
1248 * @effective contains the effective capability set.
1249 * @inheritable contains the inheritable capability set.
1250 * @permitted contains the permitted capability set.
1251 * Return 0 if the capability sets were successfully obtained.
David Howellsd84f4f92008-11-14 10:39:23 +11001252 * @capset:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253 * Set the @effective, @inheritable, and @permitted capability sets for
David Howells1cdcbec2008-11-14 10:39:14 +11001254 * the current process.
David Howellsd84f4f92008-11-14 10:39:23 +11001255 * @new contains the new credentials structure for target process.
1256 * @old contains the current credentials structure for target process.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257 * @effective contains the effective capability set.
1258 * @inheritable contains the inheritable capability set.
1259 * @permitted contains the permitted capability set.
David Howellsd84f4f92008-11-14 10:39:23 +11001260 * Return 0 and update @new if permission is granted.
Chris Wright12b59892006-03-25 03:07:41 -08001261 * @capable:
David Howells3699c532009-01-06 22:27:01 +00001262 * Check whether the @tsk process has the @cap capability in the indicated
1263 * credentials.
David Howells3699c532009-01-06 22:27:01 +00001264 * @cred contains the credentials to use.
Serge E. Hallyn34867402011-03-23 16:43:17 -07001265 * @ns contains the user namespace we want the capability in
Chris Wright12b59892006-03-25 03:07:41 -08001266 * @cap contains the capability <include/linux/capability.h>.
David Howells3699c532009-01-06 22:27:01 +00001267 * @audit: Whether to write an audit message or not
Chris Wright12b59892006-03-25 03:07:41 -08001268 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269 * @syslog:
1270 * Check permission before accessing the kernel message ring or changing
1271 * logging to the console.
Eric Paris7b41b172008-04-23 14:10:25 -04001272 * See the syslog(2) manual page for an explanation of the @type values.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 * @type contains the type of action.
Kees Cook00234592010-02-03 15:36:43 -08001274 * @from_file indicates the context of action (if it came from /proc).
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275 * Return 0 if permission is granted.
1276 * @settime:
1277 * Check permission to change the system time.
1278 * struct timespec and timezone are defined in include/linux/time.h
1279 * @ts contains new time
1280 * @tz contains new timezone
1281 * Return 0 if permission is granted.
1282 * @vm_enough_memory:
1283 * Check permissions for allocating a new virtual mapping.
Alan Cox34b4e4a2007-08-22 14:01:28 -07001284 * @mm contains the mm struct it is being added to.
Eric Paris7b41b172008-04-23 14:10:25 -04001285 * @pages contains the number of pages.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286 * Return 0 if permission is granted.
1287 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001288 * @secid_to_secctx:
Eric Parisd5630b92010-10-13 16:24:48 -04001289 * Convert secid to security context. If secdata is NULL the length of
1290 * the result will be returned in seclen, but no secdata will be returned.
1291 * This does mean that the length could change between calls to check the
1292 * length and the next call which actually allocates and returns the secdata.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001293 * @secid contains the security ID.
1294 * @secdata contains the pointer that stores the converted security context.
Eric Parisd5630b92010-10-13 16:24:48 -04001295 * @seclen pointer which contains the length of the data
David Howells63cb3442008-01-15 23:47:35 +00001296 * @secctx_to_secid:
Eric Paris7b41b172008-04-23 14:10:25 -04001297 * Convert security context to secid.
1298 * @secid contains the pointer to the generated security ID.
1299 * @secdata contains the security context.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001300 *
1301 * @release_secctx:
1302 * Release the security context.
1303 * @secdata contains the security context.
1304 * @seclen contains the length of the security context.
1305 *
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001306 * Security hooks for Audit
1307 *
1308 * @audit_rule_init:
1309 * Allocate and initialize an LSM audit rule structure.
1310 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1311 * @op contains the operator the rule uses.
1312 * @rulestr contains the context where the rule will be applied to.
1313 * @lsmrule contains a pointer to receive the result.
1314 * Return 0 if @lsmrule has been successfully set,
1315 * -EINVAL in case of an invalid rule.
1316 *
1317 * @audit_rule_known:
1318 * Specifies whether given @rule contains any fields related to current LSM.
1319 * @rule contains the audit rule of interest.
1320 * Return 1 in case of relation found, 0 otherwise.
1321 *
1322 * @audit_rule_match:
1323 * Determine if given @secid matches a rule previously approved
1324 * by @audit_rule_known.
1325 * @secid contains the security id in question.
1326 * @field contains the field which relates to current LSM.
1327 * @op contains the operator that will be used for matching.
1328 * @rule points to the audit rule that will be checked against.
1329 * @actx points to the audit context associated with the check.
1330 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1331 *
1332 * @audit_rule_free:
1333 * Deallocate the LSM audit rule structure previously allocated by
1334 * audit_rule_init.
1335 * @rule contains the allocated rule
1336 *
David P. Quigley1ee65e32009-09-03 14:25:57 -04001337 * @inode_notifysecctx:
1338 * Notify the security module of what the security context of an inode
1339 * should be. Initializes the incore security context managed by the
1340 * security module for this inode. Example usage: NFS client invokes
1341 * this hook to initialize the security context in its incore inode to the
1342 * value provided by the server for the file when the server returned the
1343 * file's attributes to the client.
1344 *
1345 * Must be called with inode->i_mutex locked.
1346 *
1347 * @inode we wish to set the security context of.
1348 * @ctx contains the string which we wish to set in the inode.
1349 * @ctxlen contains the length of @ctx.
1350 *
1351 * @inode_setsecctx:
1352 * Change the security context of an inode. Updates the
1353 * incore security context managed by the security module and invokes the
1354 * fs code as needed (via __vfs_setxattr_noperm) to update any backing
1355 * xattrs that represent the context. Example usage: NFS server invokes
1356 * this hook to change the security context in its incore inode and on the
1357 * backing filesystem to a value provided by the client on a SETATTR
1358 * operation.
1359 *
1360 * Must be called with inode->i_mutex locked.
1361 *
1362 * @dentry contains the inode we wish to set the security context of.
1363 * @ctx contains the string which we wish to set in the inode.
1364 * @ctxlen contains the length of @ctx.
1365 *
1366 * @inode_getsecctx:
1367 * Returns a string containing all relavent security context information
1368 *
1369 * @inode we wish to set the security context of.
1370 * @ctx is a pointer in which to place the allocated security context.
1371 * @ctxlen points to the place to put the length of @ctx.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372 * This is the main security structure.
1373 */
1374struct security_operations {
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001375 char name[SECURITY_NAME_MAX + 1];
1376
Ingo Molnar9e488582009-05-07 19:26:19 +10001377 int (*ptrace_access_check) (struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001378 int (*ptrace_traceme) (struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -04001379 int (*capget) (struct task_struct *target,
1380 kernel_cap_t *effective,
1381 kernel_cap_t *inheritable, kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001382 int (*capset) (struct cred *new,
1383 const struct cred *old,
1384 const kernel_cap_t *effective,
1385 const kernel_cap_t *inheritable,
1386 const kernel_cap_t *permitted);
Eric Paris6a9de492012-01-03 12:25:14 -05001387 int (*capable) (const struct cred *cred, struct user_namespace *ns,
1388 int cap, int audit);
Eric Paris7b41b172008-04-23 14:10:25 -04001389 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1390 int (*quota_on) (struct dentry *dentry);
Eric Paris12b30522010-11-15 18:36:29 -05001391 int (*syslog) (int type);
Richard Cochran1e6d7672011-02-01 13:50:58 +00001392 int (*settime) (const struct timespec *ts, const 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);
Eric Parisff36fe22011-03-03 16:09:14 -05001404 int (*sb_remount) (struct super_block *sb, void *data);
James Morris12204e22008-12-19 10:44:42 +11001405 int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001406 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
David Howells726c3342006-06-23 02:02:58 -07001407 int (*sb_statfs) (struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001408 int (*sb_mount) (char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409 char *type, unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001410 int (*sb_umount) (struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001411 int (*sb_pivotroot) (struct path *old_path,
1412 struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001413 int (*sb_set_mnt_opts) (struct super_block *sb,
1414 struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001415 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1416 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001417 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001418
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001419#ifdef CONFIG_SECURITY_PATH
1420 int (*path_unlink) (struct path *dir, struct dentry *dentry);
1421 int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode);
1422 int (*path_rmdir) (struct path *dir, struct dentry *dentry);
1423 int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode,
1424 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09001425 int (*path_truncate) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001426 int (*path_symlink) (struct path *dir, struct dentry *dentry,
1427 const char *old_name);
1428 int (*path_link) (struct dentry *old_dentry, struct path *new_dir,
1429 struct dentry *new_dentry);
1430 int (*path_rename) (struct path *old_dir, struct dentry *old_dentry,
1431 struct path *new_dir, struct dentry *new_dentry);
Tetsuo Handa89eda062009-10-04 21:49:47 +09001432 int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt,
1433 mode_t mode);
1434 int (*path_chown) (struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09001435 int (*path_chroot) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001436#endif
1437
Eric Paris7b41b172008-04-23 14:10:25 -04001438 int (*inode_alloc_security) (struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001440 int (*inode_init_security) (struct inode *inode, struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -05001441 const struct qstr *qstr, char **name,
1442 void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 int (*inode_create) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001444 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 int (*inode_link) (struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001446 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1448 int (*inode_symlink) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001449 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1452 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001453 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001455 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 int (*inode_readlink) (struct dentry *dentry);
1457 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
Al Viroe74f71e2011-06-20 19:38:15 -04001458 int (*inode_permission) (struct inode *inode, int mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1460 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001461 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1462 const void *value, size_t size, int flags);
1463 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1464 const void *value, size_t size, int flags);
1465 int (*inode_getxattr) (struct dentry *dentry, const char *name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466 int (*inode_listxattr) (struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001467 int (*inode_removexattr) (struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001468 int (*inode_need_killpriv) (struct dentry *dentry);
1469 int (*inode_killpriv) (struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001470 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1471 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1472 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1473 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474
Eric Paris7b41b172008-04-23 14:10:25 -04001475 int (*file_permission) (struct file *file, int mask);
1476 int (*file_alloc_security) (struct file *file);
1477 void (*file_free_security) (struct file *file);
1478 int (*file_ioctl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001480 int (*file_mmap) (struct file *file,
Eric Parised032182007-06-28 15:55:21 -04001481 unsigned long reqprot, unsigned long prot,
1482 unsigned long flags, unsigned long addr,
1483 unsigned long addr_only);
Eric Paris7b41b172008-04-23 14:10:25 -04001484 int (*file_mprotect) (struct vm_area_struct *vma,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485 unsigned long reqprot,
1486 unsigned long prot);
Eric Paris7b41b172008-04-23 14:10:25 -04001487 int (*file_lock) (struct file *file, unsigned int cmd);
1488 int (*file_fcntl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001490 int (*file_set_fowner) (struct file *file);
1491 int (*file_send_sigiotask) (struct task_struct *tsk,
1492 struct fown_struct *fown, int sig);
1493 int (*file_receive) (struct file *file);
David Howells745ca242008-11-14 10:39:22 +11001494 int (*dentry_open) (struct file *file, const struct cred *cred);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495
1496 int (*task_create) (unsigned long clone_flags);
David Howellsee18d642009-09-02 09:14:21 +01001497 int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001498 void (*cred_free) (struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001499 int (*cred_prepare)(struct cred *new, const struct cred *old,
1500 gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001501 void (*cred_transfer)(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001502 int (*kernel_act_as)(struct cred *new, u32 secid);
1503 int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001504 int (*kernel_module_request)(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001505 int (*task_fix_setuid) (struct cred *new, const struct cred *old,
1506 int flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001507 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1508 int (*task_getpgid) (struct task_struct *p);
1509 int (*task_getsid) (struct task_struct *p);
1510 void (*task_getsecid) (struct task_struct *p, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001511 int (*task_setnice) (struct task_struct *p, int nice);
1512 int (*task_setioprio) (struct task_struct *p, int ioprio);
1513 int (*task_getioprio) (struct task_struct *p);
Jiri Slaby8fd00b42009-08-26 18:41:16 +02001514 int (*task_setrlimit) (struct task_struct *p, unsigned int resource,
1515 struct rlimit *new_rlim);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09001516 int (*task_setscheduler) (struct task_struct *p);
Eric Paris7b41b172008-04-23 14:10:25 -04001517 int (*task_getscheduler) (struct task_struct *p);
1518 int (*task_movememory) (struct task_struct *p);
1519 int (*task_kill) (struct task_struct *p,
1520 struct siginfo *info, int sig, u32 secid);
1521 int (*task_wait) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522 int (*task_prctl) (int option, unsigned long arg2,
1523 unsigned long arg3, unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11001524 unsigned long arg5);
Eric Paris7b41b172008-04-23 14:10:25 -04001525 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526
Eric Paris7b41b172008-04-23 14:10:25 -04001527 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001528 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529
Eric Paris7b41b172008-04-23 14:10:25 -04001530 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1531 void (*msg_msg_free_security) (struct msg_msg *msg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532
Eric Paris7b41b172008-04-23 14:10:25 -04001533 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1534 void (*msg_queue_free_security) (struct msg_queue *msq);
1535 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1536 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1537 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1538 struct msg_msg *msg, int msqflg);
1539 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1540 struct msg_msg *msg,
1541 struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001542 long type, int mode);
1543
Eric Paris7b41b172008-04-23 14:10:25 -04001544 int (*shm_alloc_security) (struct shmid_kernel *shp);
1545 void (*shm_free_security) (struct shmid_kernel *shp);
1546 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1547 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1548 int (*shm_shmat) (struct shmid_kernel *shp,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549 char __user *shmaddr, int shmflg);
1550
Eric Paris7b41b172008-04-23 14:10:25 -04001551 int (*sem_alloc_security) (struct sem_array *sma);
1552 void (*sem_free_security) (struct sem_array *sma);
1553 int (*sem_associate) (struct sem_array *sma, int semflg);
1554 int (*sem_semctl) (struct sem_array *sma, int cmd);
1555 int (*sem_semop) (struct sem_array *sma,
1556 struct sembuf *sops, unsigned nsops, int alter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557
Eric Paris7b41b172008-04-23 14:10:25 -04001558 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1559 int (*netlink_recv) (struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001560
Linus Torvalds1da177e2005-04-16 15:20:36 -07001561 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1562
Eric Paris7b41b172008-04-23 14:10:25 -04001563 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1564 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1565 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001566 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001567 void (*release_secctx) (char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001568
David P. Quigley1ee65e32009-09-03 14:25:57 -04001569 int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen);
1570 int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen);
1571 int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen);
1572
Linus Torvalds1da177e2005-04-16 15:20:36 -07001573#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -08001574 int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk);
Eric Paris7b41b172008-04-23 14:10:25 -04001575 int (*unix_may_send) (struct socket *sock, struct socket *other);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001576
1577 int (*socket_create) (int family, int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001578 int (*socket_post_create) (struct socket *sock, int family,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001579 int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001580 int (*socket_bind) (struct socket *sock,
1581 struct sockaddr *address, int addrlen);
1582 int (*socket_connect) (struct socket *sock,
1583 struct sockaddr *address, int addrlen);
1584 int (*socket_listen) (struct socket *sock, int backlog);
1585 int (*socket_accept) (struct socket *sock, struct socket *newsock);
Eric Paris7b41b172008-04-23 14:10:25 -04001586 int (*socket_sendmsg) (struct socket *sock,
1587 struct msghdr *msg, int size);
1588 int (*socket_recvmsg) (struct socket *sock,
1589 struct msghdr *msg, int size, int flags);
1590 int (*socket_getsockname) (struct socket *sock);
1591 int (*socket_getpeername) (struct socket *sock);
1592 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1593 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1594 int (*socket_shutdown) (struct socket *sock, int how);
1595 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001596 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001597 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001598 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001600 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001601 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001602 void (*sock_graft) (struct sock *sk, struct socket *parent);
1603 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1604 struct request_sock *req);
1605 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1606 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
Eric Paris2606fd12010-10-13 16:24:41 -04001607 int (*secmark_relabel_packet) (u32 secid);
1608 void (*secmark_refcount_inc) (void);
1609 void (*secmark_refcount_dec) (void);
Eric Paris7b41b172008-04-23 14:10:25 -04001610 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
Paul Moore2b980db2009-08-28 18:12:43 -04001611 int (*tun_dev_create)(void);
1612 void (*tun_dev_post_create)(struct sock *sk);
1613 int (*tun_dev_attach)(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001614#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001615
Trent Jaegerdf718372005-12-13 23:12:27 -08001616#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moore03e1ad72008-04-12 19:07:52 -07001617 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001618 struct xfrm_user_sec_ctx *sec_ctx);
Paul Moore03e1ad72008-04-12 19:07:52 -07001619 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1620 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1621 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001622 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001623 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001624 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001625 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001626 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Eric Paris7b41b172008-04-23 14:10:25 -04001627 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1628 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1629 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -08001630 const struct flowi *fl);
Eric Paris7b41b172008-04-23 14:10:25 -04001631 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001632#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1633
David Howells29db9192005-10-30 15:02:44 -08001634 /* key management security hooks */
1635#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +11001636 int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001637 void (*key_free) (struct key *key);
1638 int (*key_permission) (key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11001639 const struct cred *cred,
Eric Paris7b41b172008-04-23 14:10:25 -04001640 key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07001641 int (*key_getsecurity)(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08001642#endif /* CONFIG_KEYS */
1643
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001644#ifdef CONFIG_AUDIT
Eric Paris7b41b172008-04-23 14:10:25 -04001645 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1646 int (*audit_rule_known) (struct audit_krule *krule);
1647 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1648 struct audit_context *actx);
1649 void (*audit_rule_free) (void *lsmrule);
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001650#endif /* CONFIG_AUDIT */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001651};
1652
Linus Torvalds1da177e2005-04-16 15:20:36 -07001653/* prototypes */
Eric Paris7b41b172008-04-23 14:10:25 -04001654extern int security_init(void);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001655extern int security_module_enable(struct security_operations *ops);
Eric Paris7b41b172008-04-23 14:10:25 -04001656extern int register_security(struct security_operations *ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001657
James Morris20510f22007-10-16 23:31:32 -07001658/* Security operations */
Ingo Molnar9e488582009-05-07 19:26:19 +10001659int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001660int security_ptrace_traceme(struct task_struct *parent);
James Morris20510f22007-10-16 23:31:32 -07001661int security_capget(struct task_struct *target,
Eric Paris7b41b172008-04-23 14:10:25 -04001662 kernel_cap_t *effective,
1663 kernel_cap_t *inheritable,
1664 kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001665int security_capset(struct cred *new, const struct cred *old,
1666 const kernel_cap_t *effective,
1667 const kernel_cap_t *inheritable,
1668 const kernel_cap_t *permitted);
Eric Parisb7e724d2012-01-03 12:25:15 -05001669int security_capable(const struct cred *cred, struct user_namespace *ns,
Serge E. Hallyn34867402011-03-23 16:43:17 -07001670 int cap);
1671int security_real_capable(struct task_struct *tsk, struct user_namespace *ns,
1672 int cap);
1673int security_real_capable_noaudit(struct task_struct *tsk,
1674 struct user_namespace *ns, int cap);
James Morris20510f22007-10-16 23:31:32 -07001675int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1676int security_quota_on(struct dentry *dentry);
Eric Paris12b30522010-11-15 18:36:29 -05001677int security_syslog(int type);
Richard Cochran1e6d7672011-02-01 13:50:58 +00001678int security_settime(const struct timespec *ts, const struct timezone *tz);
James Morris20510f22007-10-16 23:31:32 -07001679int security_vm_enough_memory(long pages);
1680int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
Alan Cox731572d2008-10-29 14:01:20 -07001681int security_vm_enough_memory_kern(long pages);
David Howellsa6f76f22008-11-14 10:39:24 +11001682int security_bprm_set_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001683int security_bprm_check(struct linux_binprm *bprm);
David Howellsa6f76f22008-11-14 10:39:24 +11001684void security_bprm_committing_creds(struct linux_binprm *bprm);
1685void security_bprm_committed_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001686int security_bprm_secureexec(struct linux_binprm *bprm);
1687int security_sb_alloc(struct super_block *sb);
1688void security_sb_free(struct super_block *sb);
Eric Parise0007522008-03-05 10:31:54 -05001689int security_sb_copy_data(char *orig, char *copy);
Eric Parisff36fe22011-03-03 16:09:14 -05001690int security_sb_remount(struct super_block *sb, void *data);
James Morris12204e22008-12-19 10:44:42 +11001691int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001692int security_sb_show_options(struct seq_file *m, struct super_block *sb);
James Morris20510f22007-10-16 23:31:32 -07001693int security_sb_statfs(struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001694int security_sb_mount(char *dev_name, struct path *path,
Eric Paris7b41b172008-04-23 14:10:25 -04001695 char *type, unsigned long flags, void *data);
James Morris20510f22007-10-16 23:31:32 -07001696int security_sb_umount(struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001697int security_sb_pivotroot(struct path *old_path, struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001698int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001699void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1700 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001701int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001702
James Morris20510f22007-10-16 23:31:32 -07001703int security_inode_alloc(struct inode *inode);
1704void security_inode_free(struct inode *inode);
1705int security_inode_init_security(struct inode *inode, struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -05001706 const struct qstr *qstr, char **name,
1707 void **value, size_t *len);
James Morris20510f22007-10-16 23:31:32 -07001708int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1709int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1710 struct dentry *new_dentry);
1711int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1712int security_inode_symlink(struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001713 const char *old_name);
James Morris20510f22007-10-16 23:31:32 -07001714int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1715int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1716int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1717int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001718 struct inode *new_dir, struct dentry *new_dentry);
James Morris20510f22007-10-16 23:31:32 -07001719int security_inode_readlink(struct dentry *dentry);
1720int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001721int security_inode_permission(struct inode *inode, int mask);
James Morris20510f22007-10-16 23:31:32 -07001722int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1723int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001724int security_inode_setxattr(struct dentry *dentry, const char *name,
1725 const void *value, size_t size, int flags);
1726void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1727 const void *value, size_t size, int flags);
1728int security_inode_getxattr(struct dentry *dentry, const char *name);
James Morris20510f22007-10-16 23:31:32 -07001729int security_inode_listxattr(struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001730int security_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001731int security_inode_need_killpriv(struct dentry *dentry);
1732int security_inode_killpriv(struct dentry *dentry);
David P. Quigley42492592008-02-04 22:29:39 -08001733int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
James Morris20510f22007-10-16 23:31:32 -07001734int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1735int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001736void security_inode_getsecid(const struct inode *inode, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001737int security_file_permission(struct file *file, int mask);
1738int security_file_alloc(struct file *file);
1739void security_file_free(struct file *file);
1740int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1741int security_file_mmap(struct file *file, unsigned long reqprot,
1742 unsigned long prot, unsigned long flags,
1743 unsigned long addr, unsigned long addr_only);
1744int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
Eric Paris7b41b172008-04-23 14:10:25 -04001745 unsigned long prot);
James Morris20510f22007-10-16 23:31:32 -07001746int security_file_lock(struct file *file, unsigned int cmd);
1747int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1748int security_file_set_fowner(struct file *file);
1749int security_file_send_sigiotask(struct task_struct *tsk,
Eric Paris7b41b172008-04-23 14:10:25 -04001750 struct fown_struct *fown, int sig);
James Morris20510f22007-10-16 23:31:32 -07001751int security_file_receive(struct file *file);
David Howells745ca242008-11-14 10:39:22 +11001752int security_dentry_open(struct file *file, const struct cred *cred);
James Morris20510f22007-10-16 23:31:32 -07001753int security_task_create(unsigned long clone_flags);
David Howellsee18d642009-09-02 09:14:21 +01001754int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001755void security_cred_free(struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001756int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001757void security_transfer_creds(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001758int security_kernel_act_as(struct cred *new, u32 secid);
1759int security_kernel_create_files_as(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001760int security_kernel_module_request(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001761int security_task_fix_setuid(struct cred *new, const struct cred *old,
1762 int flags);
James Morris20510f22007-10-16 23:31:32 -07001763int security_task_setpgid(struct task_struct *p, pid_t pgid);
1764int security_task_getpgid(struct task_struct *p);
1765int security_task_getsid(struct task_struct *p);
1766void security_task_getsecid(struct task_struct *p, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001767int security_task_setnice(struct task_struct *p, int nice);
1768int security_task_setioprio(struct task_struct *p, int ioprio);
1769int security_task_getioprio(struct task_struct *p);
Jiri Slaby8fd00b42009-08-26 18:41:16 +02001770int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1771 struct rlimit *new_rlim);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09001772int security_task_setscheduler(struct task_struct *p);
James Morris20510f22007-10-16 23:31:32 -07001773int security_task_getscheduler(struct task_struct *p);
1774int security_task_movememory(struct task_struct *p);
1775int security_task_kill(struct task_struct *p, struct siginfo *info,
1776 int sig, u32 secid);
1777int security_task_wait(struct task_struct *p);
1778int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +11001779 unsigned long arg4, unsigned long arg5);
James Morris20510f22007-10-16 23:31:32 -07001780void security_task_to_inode(struct task_struct *p, struct inode *inode);
1781int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001782void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001783int security_msg_msg_alloc(struct msg_msg *msg);
1784void security_msg_msg_free(struct msg_msg *msg);
1785int security_msg_queue_alloc(struct msg_queue *msq);
1786void security_msg_queue_free(struct msg_queue *msq);
1787int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1788int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1789int security_msg_queue_msgsnd(struct msg_queue *msq,
Eric Paris7b41b172008-04-23 14:10:25 -04001790 struct msg_msg *msg, int msqflg);
James Morris20510f22007-10-16 23:31:32 -07001791int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
Eric Paris7b41b172008-04-23 14:10:25 -04001792 struct task_struct *target, long type, int mode);
James Morris20510f22007-10-16 23:31:32 -07001793int security_shm_alloc(struct shmid_kernel *shp);
1794void security_shm_free(struct shmid_kernel *shp);
1795int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1796int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1797int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1798int security_sem_alloc(struct sem_array *sma);
1799void security_sem_free(struct sem_array *sma);
1800int security_sem_associate(struct sem_array *sma, int semflg);
1801int security_sem_semctl(struct sem_array *sma, int cmd);
1802int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1803 unsigned nsops, int alter);
Eric Paris7b41b172008-04-23 14:10:25 -04001804void security_d_instantiate(struct dentry *dentry, struct inode *inode);
James Morris20510f22007-10-16 23:31:32 -07001805int security_getprocattr(struct task_struct *p, char *name, char **value);
1806int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1807int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1808int security_netlink_recv(struct sk_buff *skb, int cap);
1809int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001810int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001811void security_release_secctx(char *secdata, u32 seclen);
1812
David P. Quigley1ee65e32009-09-03 14:25:57 -04001813int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
1814int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
1815int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001816#else /* CONFIG_SECURITY */
Eric Parise0007522008-03-05 10:31:54 -05001817struct security_mnt_opts {
1818};
1819
1820static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1821{
1822}
1823
1824static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1825{
1826}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001827
1828/*
1829 * This is the default capabilities functionality. Most of these functions
1830 * are just stubbed out, but a few must call the proper capable code.
1831 */
1832
1833static inline int security_init(void)
1834{
1835 return 0;
1836}
1837
Ingo Molnar9e488582009-05-07 19:26:19 +10001838static inline int security_ptrace_access_check(struct task_struct *child,
David Howells5cd9c582008-08-14 11:37:28 +01001839 unsigned int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840{
Ingo Molnar9e488582009-05-07 19:26:19 +10001841 return cap_ptrace_access_check(child, mode);
David Howells5cd9c582008-08-14 11:37:28 +01001842}
1843
Alexander Beregalov5e186b52008-08-17 05:34:20 +04001844static inline int security_ptrace_traceme(struct task_struct *parent)
David Howells5cd9c582008-08-14 11:37:28 +01001845{
1846 return cap_ptrace_traceme(parent);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847}
1848
Eric Paris7b41b172008-04-23 14:10:25 -04001849static inline int security_capget(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850 kernel_cap_t *effective,
1851 kernel_cap_t *inheritable,
1852 kernel_cap_t *permitted)
1853{
Eric Paris7b41b172008-04-23 14:10:25 -04001854 return cap_capget(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855}
1856
David Howellsd84f4f92008-11-14 10:39:23 +11001857static inline int security_capset(struct cred *new,
1858 const struct cred *old,
1859 const kernel_cap_t *effective,
1860 const kernel_cap_t *inheritable,
1861 const kernel_cap_t *permitted)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862{
David Howellsd84f4f92008-11-14 10:39:23 +11001863 return cap_capset(new, old, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001864}
1865
Eric Parisb7e724d2012-01-03 12:25:15 -05001866static inline int security_capable(const struct cred *cred,
1867 struct user_namespace *ns, int cap)
Chris Wright12b59892006-03-25 03:07:41 -08001868{
Eric Paris6a9de492012-01-03 12:25:14 -05001869 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
Eric Paris06112162008-11-11 22:02:50 +11001870}
1871
Serge E. Hallyn34867402011-03-23 16:43:17 -07001872static inline int security_real_capable(struct task_struct *tsk, struct user_namespace *ns, int cap)
Eric Paris06112162008-11-11 22:02:50 +11001873{
David Howells3699c532009-01-06 22:27:01 +00001874 int ret;
1875
1876 rcu_read_lock();
Eric Paris6a9de492012-01-03 12:25:14 -05001877 ret = cap_capable(__task_cred(tsk), ns, cap, SECURITY_CAP_AUDIT);
David Howells3699c532009-01-06 22:27:01 +00001878 rcu_read_unlock();
1879 return ret;
1880}
1881
1882static inline
Serge E. Hallyn34867402011-03-23 16:43:17 -07001883int security_real_capable_noaudit(struct task_struct *tsk, struct user_namespace *ns, int cap)
David Howells3699c532009-01-06 22:27:01 +00001884{
1885 int ret;
1886
1887 rcu_read_lock();
Eric Paris6a9de492012-01-03 12:25:14 -05001888 ret = cap_capable(__task_cred(tsk), ns, cap, SECURITY_CAP_NOAUDIT);
David Howells3699c532009-01-06 22:27:01 +00001889 rcu_read_unlock();
1890 return ret;
Chris Wright12b59892006-03-25 03:07:41 -08001891}
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
Eric Paris12b30522010-11-15 18:36:29 -05001904static inline int security_syslog(int type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905{
Eric Paris12b30522010-11-15 18:36:29 -05001906 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001907}
1908
Richard Cochran1e6d7672011-02-01 13:50:58 +00001909static inline int security_settime(const struct timespec *ts,
1910 const struct timezone *tz)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911{
1912 return cap_settime(ts, tz);
1913}
1914
1915static inline int security_vm_enough_memory(long pages)
1916{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001917 WARN_ON(current->mm == NULL);
Alan Cox731572d2008-10-29 14:01:20 -07001918 return cap_vm_enough_memory(current->mm, pages);
1919}
1920
Alan Cox34b4e4a2007-08-22 14:01:28 -07001921static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1922{
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001923 WARN_ON(mm == NULL);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001924 return cap_vm_enough_memory(mm, pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001925}
1926
Junjiro R. Okajima1b79cd02008-12-02 10:31:46 -08001927static inline int security_vm_enough_memory_kern(long pages)
1928{
1929 /* If current->mm is a kernel thread then we will pass NULL,
1930 for this specific case that is fine */
1931 return cap_vm_enough_memory(current->mm, pages);
1932}
1933
David Howellsa6f76f22008-11-14 10:39:24 +11001934static inline int security_bprm_set_creds(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001935{
David Howellsa6f76f22008-11-14 10:39:24 +11001936 return cap_bprm_set_creds(bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001937}
1938
Eric Paris7b41b172008-04-23 14:10:25 -04001939static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001940{
1941 return 0;
1942}
1943
David Howellsa6f76f22008-11-14 10:39:24 +11001944static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
1945{
1946}
1947
1948static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
1949{
1950}
1951
Eric Paris7b41b172008-04-23 14:10:25 -04001952static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953{
1954 return cap_bprm_secureexec(bprm);
1955}
1956
Eric Paris7b41b172008-04-23 14:10:25 -04001957static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001958{
1959 return 0;
1960}
1961
Eric Paris7b41b172008-04-23 14:10:25 -04001962static inline void security_sb_free(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963{ }
1964
Eric Paris7b41b172008-04-23 14:10:25 -04001965static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001966{
1967 return 0;
1968}
1969
Eric Parisff36fe22011-03-03 16:09:14 -05001970static inline int security_sb_remount(struct super_block *sb, void *data)
1971{
1972 return 0;
1973}
1974
James Morris12204e22008-12-19 10:44:42 +11001975static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001976{
1977 return 0;
1978}
1979
Eric Paris2069f452008-07-04 09:47:13 +10001980static inline int security_sb_show_options(struct seq_file *m,
1981 struct super_block *sb)
1982{
1983 return 0;
1984}
1985
Eric Paris7b41b172008-04-23 14:10:25 -04001986static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001987{
1988 return 0;
1989}
1990
Eric Paris7b41b172008-04-23 14:10:25 -04001991static inline int security_sb_mount(char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992 char *type, unsigned long flags,
1993 void *data)
1994{
1995 return 0;
1996}
1997
Eric Paris7b41b172008-04-23 14:10:25 -04001998static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999{
2000 return 0;
2001}
2002
Eric Paris7b41b172008-04-23 14:10:25 -04002003static inline int security_sb_pivotroot(struct path *old_path,
2004 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002005{
2006 return 0;
2007}
2008
Eric Parise0007522008-03-05 10:31:54 -05002009static inline int security_sb_set_mnt_opts(struct super_block *sb,
2010 struct security_mnt_opts *opts)
2011{
2012 return 0;
2013}
2014
2015static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
2016 struct super_block *newsb)
2017{ }
2018
2019static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
2020{
2021 return 0;
2022}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023
Eric Paris7b41b172008-04-23 14:10:25 -04002024static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025{
2026 return 0;
2027}
2028
Eric Paris7b41b172008-04-23 14:10:25 -04002029static inline void security_inode_free(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002031
Eric Paris7b41b172008-04-23 14:10:25 -04002032static inline int security_inode_init_security(struct inode *inode,
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002033 struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -05002034 const struct qstr *qstr,
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002035 char **name,
2036 void **value,
2037 size_t *len)
2038{
2039 return -EOPNOTSUPP;
2040}
Eric Paris7b41b172008-04-23 14:10:25 -04002041
2042static inline int security_inode_create(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002043 struct dentry *dentry,
2044 int mode)
2045{
2046 return 0;
2047}
2048
Eric Paris7b41b172008-04-23 14:10:25 -04002049static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002050 struct inode *dir,
2051 struct dentry *new_dentry)
2052{
2053 return 0;
2054}
2055
Eric Paris7b41b172008-04-23 14:10:25 -04002056static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057 struct dentry *dentry)
2058{
2059 return 0;
2060}
2061
Eric Paris7b41b172008-04-23 14:10:25 -04002062static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002063 struct dentry *dentry,
2064 const char *old_name)
2065{
2066 return 0;
2067}
2068
Eric Paris7b41b172008-04-23 14:10:25 -04002069static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002070 struct dentry *dentry,
2071 int mode)
2072{
2073 return 0;
2074}
2075
Eric Paris7b41b172008-04-23 14:10:25 -04002076static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077 struct dentry *dentry)
2078{
2079 return 0;
2080}
2081
Eric Paris7b41b172008-04-23 14:10:25 -04002082static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002083 struct dentry *dentry,
2084 int mode, dev_t dev)
2085{
2086 return 0;
2087}
2088
Eric Paris7b41b172008-04-23 14:10:25 -04002089static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090 struct dentry *old_dentry,
2091 struct inode *new_dir,
2092 struct dentry *new_dentry)
2093{
2094 return 0;
2095}
2096
Eric Paris7b41b172008-04-23 14:10:25 -04002097static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098{
2099 return 0;
2100}
2101
Eric Paris7b41b172008-04-23 14:10:25 -04002102static inline int security_inode_follow_link(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103 struct nameidata *nd)
2104{
2105 return 0;
2106}
2107
Al Virob77b0642008-07-17 09:37:02 -04002108static inline int security_inode_permission(struct inode *inode, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002109{
2110 return 0;
2111}
2112
Eric Paris7b41b172008-04-23 14:10:25 -04002113static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114 struct iattr *attr)
2115{
2116 return 0;
2117}
2118
Eric Paris7b41b172008-04-23 14:10:25 -04002119static inline int security_inode_getattr(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120 struct dentry *dentry)
2121{
2122 return 0;
2123}
2124
David Howells8f0cfa52008-04-29 00:59:41 -07002125static inline int security_inode_setxattr(struct dentry *dentry,
2126 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127{
2128 return cap_inode_setxattr(dentry, name, value, size, flags);
2129}
2130
David Howells8f0cfa52008-04-29 00:59:41 -07002131static inline void security_inode_post_setxattr(struct dentry *dentry,
2132 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002133{ }
2134
David Howells8f0cfa52008-04-29 00:59:41 -07002135static inline int security_inode_getxattr(struct dentry *dentry,
2136 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002137{
2138 return 0;
2139}
2140
Eric Paris7b41b172008-04-23 14:10:25 -04002141static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002142{
2143 return 0;
2144}
2145
David Howells8f0cfa52008-04-29 00:59:41 -07002146static inline int security_inode_removexattr(struct dentry *dentry,
2147 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002148{
2149 return cap_inode_removexattr(dentry, name);
2150}
2151
Serge E. Hallynb5376772007-10-16 23:31:36 -07002152static inline int security_inode_need_killpriv(struct dentry *dentry)
2153{
2154 return cap_inode_need_killpriv(dentry);
2155}
2156
2157static inline int security_inode_killpriv(struct dentry *dentry)
2158{
2159 return cap_inode_killpriv(dentry);
2160}
2161
David P. Quigley42492592008-02-04 22:29:39 -08002162static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163{
2164 return -EOPNOTSUPP;
2165}
2166
2167static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2168{
2169 return -EOPNOTSUPP;
2170}
2171
2172static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2173{
2174 return 0;
2175}
2176
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002177static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2178{
2179 *secid = 0;
2180}
2181
Eric Paris7b41b172008-04-23 14:10:25 -04002182static inline int security_file_permission(struct file *file, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183{
2184 return 0;
2185}
2186
Eric Paris7b41b172008-04-23 14:10:25 -04002187static inline int security_file_alloc(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188{
2189 return 0;
2190}
2191
Eric Paris7b41b172008-04-23 14:10:25 -04002192static inline void security_file_free(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193{ }
2194
Eric Paris7b41b172008-04-23 14:10:25 -04002195static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2196 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197{
2198 return 0;
2199}
2200
Eric Paris7b41b172008-04-23 14:10:25 -04002201static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2202 unsigned long prot,
2203 unsigned long flags,
2204 unsigned long addr,
2205 unsigned long addr_only)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206{
Eric Paris7c738752009-07-31 12:53:58 -04002207 return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208}
2209
Eric Paris7b41b172008-04-23 14:10:25 -04002210static inline int security_file_mprotect(struct vm_area_struct *vma,
2211 unsigned long reqprot,
2212 unsigned long prot)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213{
2214 return 0;
2215}
2216
Eric Paris7b41b172008-04-23 14:10:25 -04002217static inline int security_file_lock(struct file *file, unsigned int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218{
2219 return 0;
2220}
2221
Eric Paris7b41b172008-04-23 14:10:25 -04002222static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2223 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002224{
2225 return 0;
2226}
2227
Eric Paris7b41b172008-04-23 14:10:25 -04002228static inline int security_file_set_fowner(struct file *file)
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_send_sigiotask(struct task_struct *tsk,
2234 struct fown_struct *fown,
2235 int sig)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002236{
2237 return 0;
2238}
2239
Eric Paris7b41b172008-04-23 14:10:25 -04002240static inline int security_file_receive(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241{
2242 return 0;
2243}
2244
David Howells745ca242008-11-14 10:39:22 +11002245static inline int security_dentry_open(struct file *file,
2246 const struct cred *cred)
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +09002247{
2248 return 0;
2249}
2250
Eric Paris7b41b172008-04-23 14:10:25 -04002251static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002252{
2253 return 0;
2254}
2255
David Howells945af7c2009-09-04 09:19:48 +01002256static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
2257{
2258 return 0;
2259}
David Howellsee18d642009-09-02 09:14:21 +01002260
David Howellsd84f4f92008-11-14 10:39:23 +11002261static inline void security_cred_free(struct cred *cred)
2262{ }
2263
2264static inline int security_prepare_creds(struct cred *new,
2265 const struct cred *old,
2266 gfp_t gfp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002267{
2268 return 0;
2269}
2270
David Howellsee18d642009-09-02 09:14:21 +01002271static inline void security_transfer_creds(struct cred *new,
2272 const struct cred *old)
2273{
2274}
2275
David Howells3a3b7ce2008-11-14 10:39:28 +11002276static inline int security_kernel_act_as(struct cred *cred, u32 secid)
2277{
2278 return 0;
2279}
2280
2281static inline int security_kernel_create_files_as(struct cred *cred,
2282 struct inode *inode)
2283{
2284 return 0;
2285}
2286
Eric Parisdd8dbf22009-11-03 16:35:32 +11002287static inline int security_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -04002288{
2289 return 0;
2290}
2291
David Howellsd84f4f92008-11-14 10:39:23 +11002292static inline int security_task_fix_setuid(struct cred *new,
2293 const struct cred *old,
2294 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295{
David Howellsd84f4f92008-11-14 10:39:23 +11002296 return cap_task_fix_setuid(new, old, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002297}
2298
Eric Paris7b41b172008-04-23 14:10:25 -04002299static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002300{
2301 return 0;
2302}
2303
Eric Paris7b41b172008-04-23 14:10:25 -04002304static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002305{
2306 return 0;
2307}
2308
Eric Paris7b41b172008-04-23 14:10:25 -04002309static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002310{
2311 return 0;
2312}
2313
Eric Paris7b41b172008-04-23 14:10:25 -04002314static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002315{
2316 *secid = 0;
2317}
David Quigleyf9008e42006-06-30 01:55:46 -07002318
Eric Paris7b41b172008-04-23 14:10:25 -04002319static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002320{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002321 return cap_task_setnice(p, nice);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002322}
2323
Eric Paris7b41b172008-04-23 14:10:25 -04002324static inline int security_task_setioprio(struct task_struct *p, int ioprio)
James Morris03e68062006-06-23 02:03:58 -07002325{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002326 return cap_task_setioprio(p, ioprio);
James Morris03e68062006-06-23 02:03:58 -07002327}
2328
Eric Paris7b41b172008-04-23 14:10:25 -04002329static inline int security_task_getioprio(struct task_struct *p)
David Quigleya1836a42006-06-30 01:55:49 -07002330{
2331 return 0;
2332}
2333
Jiri Slaby8fd00b42009-08-26 18:41:16 +02002334static inline int security_task_setrlimit(struct task_struct *p,
2335 unsigned int resource,
Eric Paris7b41b172008-04-23 14:10:25 -04002336 struct rlimit *new_rlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002337{
2338 return 0;
2339}
2340
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09002341static inline int security_task_setscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002342{
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09002343 return cap_task_setscheduler(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002344}
2345
Eric Paris7b41b172008-04-23 14:10:25 -04002346static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002347{
2348 return 0;
2349}
2350
Eric Paris7b41b172008-04-23 14:10:25 -04002351static inline int security_task_movememory(struct task_struct *p)
David Quigley35601542006-06-23 02:04:01 -07002352{
2353 return 0;
2354}
2355
Eric Paris7b41b172008-04-23 14:10:25 -04002356static inline int security_task_kill(struct task_struct *p,
2357 struct siginfo *info, int sig,
2358 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002359{
Serge Hallynaedb60a2008-02-29 15:14:57 +00002360 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002361}
2362
Eric Paris7b41b172008-04-23 14:10:25 -04002363static inline int security_task_wait(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002364{
2365 return 0;
2366}
2367
Eric Paris7b41b172008-04-23 14:10:25 -04002368static inline int security_task_prctl(int option, unsigned long arg2,
2369 unsigned long arg3,
2370 unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11002371 unsigned long arg5)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002372{
David Howellsd84f4f92008-11-14 10:39:23 +11002373 return cap_task_prctl(option, arg2, arg3, arg3, arg5);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002374}
2375
2376static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2377{ }
2378
Eric Paris7b41b172008-04-23 14:10:25 -04002379static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2380 short flag)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002381{
2382 return 0;
2383}
2384
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002385static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2386{
2387 *secid = 0;
2388}
2389
Eric Paris7b41b172008-04-23 14:10:25 -04002390static inline int security_msg_msg_alloc(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002391{
2392 return 0;
2393}
2394
Eric Paris7b41b172008-04-23 14:10:25 -04002395static inline void security_msg_msg_free(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002396{ }
2397
Eric Paris7b41b172008-04-23 14:10:25 -04002398static inline int security_msg_queue_alloc(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002399{
2400 return 0;
2401}
2402
Eric Paris7b41b172008-04-23 14:10:25 -04002403static inline void security_msg_queue_free(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002404{ }
2405
Eric Paris7b41b172008-04-23 14:10:25 -04002406static inline int security_msg_queue_associate(struct msg_queue *msq,
2407 int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002408{
2409 return 0;
2410}
2411
Eric Paris7b41b172008-04-23 14:10:25 -04002412static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002413{
2414 return 0;
2415}
2416
Eric Paris7b41b172008-04-23 14:10:25 -04002417static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2418 struct msg_msg *msg, int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002419{
2420 return 0;
2421}
2422
Eric Paris7b41b172008-04-23 14:10:25 -04002423static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2424 struct msg_msg *msg,
2425 struct task_struct *target,
2426 long type, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002427{
2428 return 0;
2429}
2430
Eric Paris7b41b172008-04-23 14:10:25 -04002431static inline int security_shm_alloc(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432{
2433 return 0;
2434}
2435
Eric Paris7b41b172008-04-23 14:10:25 -04002436static inline void security_shm_free(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002437{ }
2438
Eric Paris7b41b172008-04-23 14:10:25 -04002439static inline int security_shm_associate(struct shmid_kernel *shp,
2440 int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002441{
2442 return 0;
2443}
2444
Eric Paris7b41b172008-04-23 14:10:25 -04002445static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002446{
2447 return 0;
2448}
2449
Eric Paris7b41b172008-04-23 14:10:25 -04002450static inline int security_shm_shmat(struct shmid_kernel *shp,
2451 char __user *shmaddr, int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002452{
2453 return 0;
2454}
2455
Eric Paris7b41b172008-04-23 14:10:25 -04002456static inline int security_sem_alloc(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002457{
2458 return 0;
2459}
2460
Eric Paris7b41b172008-04-23 14:10:25 -04002461static inline void security_sem_free(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002462{ }
2463
Eric Paris7b41b172008-04-23 14:10:25 -04002464static inline int security_sem_associate(struct sem_array *sma, int semflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002465{
2466 return 0;
2467}
2468
Eric Paris7b41b172008-04-23 14:10:25 -04002469static inline int security_sem_semctl(struct sem_array *sma, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002470{
2471 return 0;
2472}
2473
Eric Paris7b41b172008-04-23 14:10:25 -04002474static inline int security_sem_semop(struct sem_array *sma,
2475 struct sembuf *sops, unsigned nsops,
2476 int alter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002477{
2478 return 0;
2479}
2480
Eric Paris7b41b172008-04-23 14:10:25 -04002481static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002482{ }
2483
Al Viro04ff9702007-03-12 16:17:58 +00002484static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002485{
2486 return -EINVAL;
2487}
2488
2489static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2490{
2491 return -EINVAL;
2492}
2493
Eric Paris7b41b172008-04-23 14:10:25 -04002494static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002495{
Eric Paris7b41b172008-04-23 14:10:25 -04002496 return cap_netlink_send(sk, skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002497}
2498
Eric Paris7b41b172008-04-23 14:10:25 -04002499static inline int security_netlink_recv(struct sk_buff *skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002500{
Eric Paris7b41b172008-04-23 14:10:25 -04002501 return cap_netlink_recv(skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002502}
2503
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002504static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2505{
2506 return -EOPNOTSUPP;
2507}
2508
David Howells7bf570d2008-04-29 20:52:51 +01002509static inline int security_secctx_to_secid(const char *secdata,
David Howells63cb3442008-01-15 23:47:35 +00002510 u32 seclen,
2511 u32 *secid)
2512{
2513 return -EOPNOTSUPP;
2514}
2515
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002516static inline void security_release_secctx(char *secdata, u32 seclen)
2517{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002518}
David P. Quigley1ee65e32009-09-03 14:25:57 -04002519
2520static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
2521{
2522 return -EOPNOTSUPP;
2523}
2524static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
2525{
2526 return -EOPNOTSUPP;
2527}
2528static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
2529{
2530 return -EOPNOTSUPP;
2531}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002532#endif /* CONFIG_SECURITY */
2533
2534#ifdef CONFIG_SECURITY_NETWORK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002535
David S. Miller3610cda2011-01-05 15:38:53 -08002536int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
James Morris20510f22007-10-16 23:31:32 -07002537int security_unix_may_send(struct socket *sock, struct socket *other);
2538int security_socket_create(int family, int type, int protocol, int kern);
2539int security_socket_post_create(struct socket *sock, int family,
2540 int type, int protocol, int kern);
2541int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2542int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2543int security_socket_listen(struct socket *sock, int backlog);
2544int security_socket_accept(struct socket *sock, struct socket *newsock);
James Morris20510f22007-10-16 23:31:32 -07002545int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2546int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2547 int size, int flags);
2548int security_socket_getsockname(struct socket *sock);
2549int security_socket_getpeername(struct socket *sock);
2550int security_socket_getsockopt(struct socket *sock, int level, int optname);
2551int security_socket_setsockopt(struct socket *sock, int level, int optname);
2552int security_socket_shutdown(struct socket *sock, int how);
2553int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2554int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2555 int __user *optlen, unsigned len);
2556int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2557int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2558void security_sk_free(struct sock *sk);
2559void security_sk_clone(const struct sock *sk, struct sock *newsk);
2560void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2561void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2562void security_sock_graft(struct sock*sk, struct socket *parent);
2563int security_inet_conn_request(struct sock *sk,
2564 struct sk_buff *skb, struct request_sock *req);
2565void security_inet_csk_clone(struct sock *newsk,
2566 const struct request_sock *req);
2567void security_inet_conn_established(struct sock *sk,
2568 struct sk_buff *skb);
Eric Paris2606fd12010-10-13 16:24:41 -04002569int security_secmark_relabel_packet(u32 secid);
2570void security_secmark_refcount_inc(void);
2571void security_secmark_refcount_dec(void);
Paul Moore2b980db2009-08-28 18:12:43 -04002572int security_tun_dev_create(void);
2573void security_tun_dev_post_create(struct sock *sk);
2574int security_tun_dev_attach(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002575
Linus Torvalds1da177e2005-04-16 15:20:36 -07002576#else /* CONFIG_SECURITY_NETWORK */
David S. Miller3610cda2011-01-05 15:38:53 -08002577static inline int security_unix_stream_connect(struct sock *sock,
2578 struct sock *other,
Eric Paris7b41b172008-04-23 14:10:25 -04002579 struct sock *newsk)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002580{
2581 return 0;
2582}
2583
Eric Paris7b41b172008-04-23 14:10:25 -04002584static inline int security_unix_may_send(struct socket *sock,
2585 struct socket *other)
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_create(int family, int type,
2591 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002592{
2593 return 0;
2594}
2595
Eric Paris7b41b172008-04-23 14:10:25 -04002596static inline int security_socket_post_create(struct socket *sock,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002597 int family,
2598 int type,
2599 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002600{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002601 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002602}
2603
Eric Paris7b41b172008-04-23 14:10:25 -04002604static inline int security_socket_bind(struct socket *sock,
2605 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002606 int addrlen)
2607{
2608 return 0;
2609}
2610
Eric Paris7b41b172008-04-23 14:10:25 -04002611static inline int security_socket_connect(struct socket *sock,
2612 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002613 int addrlen)
2614{
2615 return 0;
2616}
2617
Eric Paris7b41b172008-04-23 14:10:25 -04002618static inline int security_socket_listen(struct socket *sock, int backlog)
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_accept(struct socket *sock,
2624 struct socket *newsock)
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_sendmsg(struct socket *sock,
2630 struct msghdr *msg, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002631{
2632 return 0;
2633}
2634
Eric Paris7b41b172008-04-23 14:10:25 -04002635static inline int security_socket_recvmsg(struct socket *sock,
2636 struct msghdr *msg, int size,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002637 int flags)
2638{
2639 return 0;
2640}
2641
Eric Paris7b41b172008-04-23 14:10:25 -04002642static inline int security_socket_getsockname(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002643{
2644 return 0;
2645}
2646
Eric Paris7b41b172008-04-23 14:10:25 -04002647static inline int security_socket_getpeername(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002648{
2649 return 0;
2650}
2651
Eric Paris7b41b172008-04-23 14:10:25 -04002652static inline int security_socket_getsockopt(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_setsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002659 int level, int optname)
2660{
2661 return 0;
2662}
2663
Eric Paris7b41b172008-04-23 14:10:25 -04002664static inline int security_socket_shutdown(struct socket *sock, int how)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002665{
2666 return 0;
2667}
Eric Paris7b41b172008-04-23 14:10:25 -04002668static inline int security_sock_rcv_skb(struct sock *sk,
2669 struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002670{
2671 return 0;
2672}
2673
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002674static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2675 int __user *optlen, unsigned len)
2676{
2677 return -ENOPROTOOPT;
2678}
2679
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002680static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002681{
2682 return -ENOPROTOOPT;
2683}
2684
Al Virodd0fc662005-10-07 07:46:04 +01002685static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002686{
2687 return 0;
2688}
2689
2690static inline void security_sk_free(struct sock *sk)
2691{
2692}
Trent Jaegerdf718372005-12-13 23:12:27 -08002693
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002694static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2695{
2696}
2697
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002698static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002699{
Trent Jaegerdf718372005-12-13 23:12:27 -08002700}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002701
2702static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2703{
2704}
2705
Eric Paris7b41b172008-04-23 14:10:25 -04002706static inline void security_sock_graft(struct sock *sk, struct socket *parent)
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002707{
2708}
2709
2710static inline int security_inet_conn_request(struct sock *sk,
2711 struct sk_buff *skb, struct request_sock *req)
2712{
2713 return 0;
2714}
2715
2716static inline void security_inet_csk_clone(struct sock *newsk,
2717 const struct request_sock *req)
2718{
2719}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002720
2721static inline void security_inet_conn_established(struct sock *sk,
2722 struct sk_buff *skb)
2723{
2724}
Paul Moore2b980db2009-08-28 18:12:43 -04002725
Eric Paris2606fd12010-10-13 16:24:41 -04002726static inline int security_secmark_relabel_packet(u32 secid)
2727{
2728 return 0;
2729}
2730
2731static inline void security_secmark_refcount_inc(void)
2732{
2733}
2734
2735static inline void security_secmark_refcount_dec(void)
2736{
2737}
2738
Paul Moore2b980db2009-08-28 18:12:43 -04002739static inline int security_tun_dev_create(void)
2740{
2741 return 0;
2742}
2743
2744static inline void security_tun_dev_post_create(struct sock *sk)
2745{
2746}
2747
2748static inline int security_tun_dev_attach(struct sock *sk)
2749{
2750 return 0;
2751}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002752#endif /* CONFIG_SECURITY_NETWORK */
2753
Trent Jaegerdf718372005-12-13 23:12:27 -08002754#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07002755
Paul Moore03e1ad72008-04-12 19:07:52 -07002756int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2757int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2758void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2759int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
James Morris20510f22007-10-16 23:31:32 -07002760int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2761int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2762 struct xfrm_sec_ctx *polsec, u32 secid);
2763int security_xfrm_state_delete(struct xfrm_state *x);
2764void security_xfrm_state_free(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -07002765int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
James Morris20510f22007-10-16 23:31:32 -07002766int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
David S. Millere33f7702011-02-22 18:13:15 -08002767 struct xfrm_policy *xp,
2768 const struct flowi *fl);
James Morris20510f22007-10-16 23:31:32 -07002769int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2770void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
Trent Jaegerdf718372005-12-13 23:12:27 -08002771
Trent Jaegerdf718372005-12-13 23:12:27 -08002772#else /* CONFIG_SECURITY_NETWORK_XFRM */
James Morris20510f22007-10-16 23:31:32 -07002773
Paul Moore03e1ad72008-04-12 19:07:52 -07002774static 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 -08002775{
2776 return 0;
2777}
2778
Paul Moore03e1ad72008-04-12 19:07:52 -07002779static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
Trent Jaegerdf718372005-12-13 23:12:27 -08002780{
2781 return 0;
2782}
2783
Paul Moore03e1ad72008-04-12 19:07:52 -07002784static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08002785{
2786}
2787
Paul Moore03e1ad72008-04-12 19:07:52 -07002788static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002789{
2790 return 0;
2791}
2792
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002793static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2794 struct xfrm_user_sec_ctx *sec_ctx)
2795{
2796 return 0;
2797}
2798
2799static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2800 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08002801{
2802 return 0;
2803}
2804
2805static inline void security_xfrm_state_free(struct xfrm_state *x)
2806{
2807}
2808
David S. Miller6f68dc32006-06-08 23:58:52 -07002809static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002810{
2811 return 0;
2812}
2813
Paul Moore03e1ad72008-04-12 19:07:52 -07002814static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08002815{
2816 return 0;
2817}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002818
2819static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
David S. Millere33f7702011-02-22 18:13:15 -08002820 struct xfrm_policy *xp, const struct flowi *fl)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002821{
2822 return 1;
2823}
2824
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002825static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002826{
2827 return 0;
2828}
2829
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002830static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2831{
2832}
2833
Trent Jaegerdf718372005-12-13 23:12:27 -08002834#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2835
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002836#ifdef CONFIG_SECURITY_PATH
2837int security_path_unlink(struct path *dir, struct dentry *dentry);
2838int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode);
2839int security_path_rmdir(struct path *dir, struct dentry *dentry);
2840int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
2841 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002842int security_path_truncate(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002843int security_path_symlink(struct path *dir, struct dentry *dentry,
2844 const char *old_name);
2845int security_path_link(struct dentry *old_dentry, struct path *new_dir,
2846 struct dentry *new_dentry);
2847int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
2848 struct path *new_dir, struct dentry *new_dentry);
Tetsuo Handa89eda062009-10-04 21:49:47 +09002849int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
2850 mode_t mode);
2851int security_path_chown(struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002852int security_path_chroot(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002853#else /* CONFIG_SECURITY_PATH */
2854static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
2855{
2856 return 0;
2857}
2858
2859static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
2860 int mode)
2861{
2862 return 0;
2863}
2864
2865static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
2866{
2867 return 0;
2868}
2869
2870static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
2871 int mode, unsigned int dev)
2872{
2873 return 0;
2874}
2875
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002876static inline int security_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002877{
2878 return 0;
2879}
2880
2881static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
2882 const char *old_name)
2883{
2884 return 0;
2885}
2886
2887static inline int security_path_link(struct dentry *old_dentry,
2888 struct path *new_dir,
2889 struct dentry *new_dentry)
2890{
2891 return 0;
2892}
2893
2894static inline int security_path_rename(struct path *old_dir,
2895 struct dentry *old_dentry,
2896 struct path *new_dir,
2897 struct dentry *new_dentry)
2898{
2899 return 0;
2900}
Tetsuo Handa89eda062009-10-04 21:49:47 +09002901
2902static inline int security_path_chmod(struct dentry *dentry,
2903 struct vfsmount *mnt,
2904 mode_t mode)
2905{
2906 return 0;
2907}
2908
2909static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid)
2910{
2911 return 0;
2912}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002913
2914static inline int security_path_chroot(struct path *path)
2915{
2916 return 0;
2917}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002918#endif /* CONFIG_SECURITY_PATH */
2919
David Howells29db9192005-10-30 15:02:44 -08002920#ifdef CONFIG_KEYS
2921#ifdef CONFIG_SECURITY
David Howells29db9192005-10-30 15:02:44 -08002922
David Howellsd84f4f92008-11-14 10:39:23 +11002923int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
James Morris20510f22007-10-16 23:31:32 -07002924void security_key_free(struct key *key);
2925int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002926 const struct cred *cred, key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07002927int security_key_getsecurity(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08002928
2929#else
2930
Michael LeMayd7200242006-06-22 14:47:17 -07002931static inline int security_key_alloc(struct key *key,
David Howellsd84f4f92008-11-14 10:39:23 +11002932 const struct cred *cred,
David Howells7e047ef2006-06-26 00:24:50 -07002933 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08002934{
2935 return 0;
2936}
2937
2938static inline void security_key_free(struct key *key)
2939{
2940}
2941
2942static inline int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002943 const struct cred *cred,
David Howells29db9192005-10-30 15:02:44 -08002944 key_perm_t perm)
2945{
2946 return 0;
2947}
2948
David Howells70a5bb72008-04-29 01:01:26 -07002949static inline int security_key_getsecurity(struct key *key, char **_buffer)
2950{
2951 *_buffer = NULL;
2952 return 0;
2953}
2954
David Howells29db9192005-10-30 15:02:44 -08002955#endif
2956#endif /* CONFIG_KEYS */
2957
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02002958#ifdef CONFIG_AUDIT
2959#ifdef CONFIG_SECURITY
2960int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2961int security_audit_rule_known(struct audit_krule *krule);
2962int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2963 struct audit_context *actx);
2964void security_audit_rule_free(void *lsmrule);
2965
2966#else
2967
2968static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2969 void **lsmrule)
2970{
2971 return 0;
2972}
2973
2974static inline int security_audit_rule_known(struct audit_krule *krule)
2975{
2976 return 0;
2977}
2978
2979static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2980 void *lsmrule, struct audit_context *actx)
2981{
2982 return 0;
2983}
2984
2985static inline void security_audit_rule_free(void *lsmrule)
2986{ }
2987
2988#endif /* CONFIG_SECURITY */
2989#endif /* CONFIG_AUDIT */
2990
Eric Parisda318942008-08-22 11:35:57 -04002991#ifdef CONFIG_SECURITYFS
2992
2993extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
2994 struct dentry *parent, void *data,
2995 const struct file_operations *fops);
2996extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2997extern void securityfs_remove(struct dentry *dentry);
2998
2999#else /* CONFIG_SECURITYFS */
3000
3001static inline struct dentry *securityfs_create_dir(const char *name,
3002 struct dentry *parent)
3003{
3004 return ERR_PTR(-ENODEV);
3005}
3006
3007static inline struct dentry *securityfs_create_file(const char *name,
3008 mode_t mode,
3009 struct dentry *parent,
3010 void *data,
3011 const struct file_operations *fops)
3012{
3013 return ERR_PTR(-ENODEV);
3014}
3015
3016static inline void securityfs_remove(struct dentry *dentry)
3017{}
3018
3019#endif
3020
Pekka Enberg3d544f42009-03-24 11:59:23 +02003021#ifdef CONFIG_SECURITY
3022
3023static inline char *alloc_secdata(void)
3024{
3025 return (char *)get_zeroed_page(GFP_KERNEL);
3026}
3027
3028static inline void free_secdata(void *secdata)
3029{
3030 free_page((unsigned long)secdata);
3031}
3032
3033#else
3034
3035static inline char *alloc_secdata(void)
3036{
3037 return (char *)1;
3038}
3039
3040static inline void free_secdata(void *secdata)
3041{ }
3042#endif /* CONFIG_SECURITY */
3043
Linus Torvalds1da177e2005-04-16 15:20:36 -07003044#endif /* ! __LINUX_SECURITY_H */
3045