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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Linux Security plug
3 *
4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
19 *
20 */
21
22#ifndef __LINUX_SECURITY_H
23#define __LINUX_SECURITY_H
24
25#include <linux/fs.h>
26#include <linux/binfmts.h>
27#include <linux/signal.h>
28#include <linux/resource.h>
29#include <linux/sem.h>
30#include <linux/shm.h>
31#include <linux/msg.h>
32#include <linux/sched.h>
David Howells29db9192005-10-30 15:02:44 -080033#include <linux/key.h>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -070034#include <linux/xfrm.h>
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -070035#include <net/flow.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020037/* Maximum number of letters for an LSM name string */
38#define SECURITY_NAME_MAX 10
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040struct ctl_table;
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +020041struct audit_krule;
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
43/*
44 * These functions are in security/capability.c and are used
45 * as the default capabilities functions
46 */
Eric Paris7b41b172008-04-23 14:10:25 -040047extern int cap_capable(struct task_struct *tsk, int cap);
48extern int cap_settime(struct timespec *ts, struct timezone *tz);
David Howells5cd9c582008-08-14 11:37:28 +010049extern int cap_ptrace_may_access(struct task_struct *child, unsigned int mode);
50extern int cap_ptrace_traceme(struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -040051extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
52extern int cap_capset_check(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
53extern void cap_capset_set(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
54extern int cap_bprm_set_security(struct linux_binprm *bprm);
55extern void cap_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
Linus Torvalds1da177e2005-04-16 15:20:36 -070056extern int cap_bprm_secureexec(struct linux_binprm *bprm);
David Howells8f0cfa52008-04-29 00:59:41 -070057extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
58 const void *value, size_t size, int flags);
59extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -070060extern int cap_inode_need_killpriv(struct dentry *dentry);
61extern int cap_inode_killpriv(struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -040062extern int cap_task_post_setuid(uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags);
63extern void cap_task_reparent_to_init(struct task_struct *p);
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070064extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
65 unsigned long arg4, unsigned long arg5, long *rc_p);
Eric Paris7b41b172008-04-23 14:10:25 -040066extern int cap_task_setscheduler(struct task_struct *p, int policy, struct sched_param *lp);
67extern int cap_task_setioprio(struct task_struct *p, int ioprio);
68extern int cap_task_setnice(struct task_struct *p, int nice);
69extern int cap_syslog(int type);
James Morris20510f22007-10-16 23:31:32 -070070extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
72struct msghdr;
73struct sk_buff;
74struct sock;
75struct sockaddr;
76struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -080077struct flowi;
78struct dst_entry;
79struct xfrm_selector;
80struct xfrm_policy;
81struct xfrm_state;
82struct xfrm_user_sec_ctx;
Eric Paris2069f452008-07-04 09:47:13 +100083struct seq_file;
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
85extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
Darrel Goeddelc7bdb542006-06-27 13:26:11 -070086extern int cap_netlink_recv(struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
Eric Parised032182007-06-28 15:55:21 -040088extern unsigned long mmap_min_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -070089/*
90 * Values used in the task_security_ops calls
91 */
92/* setuid or setgid, id0 == uid or gid */
93#define LSM_SETID_ID 1
94
95/* setreuid or setregid, id0 == real, id1 == eff */
96#define LSM_SETID_RE 2
97
98/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
99#define LSM_SETID_RES 4
100
101/* setfsuid or setfsgid, id0 == fsuid or fsgid */
102#define LSM_SETID_FS 8
103
104/* forward declares to avoid warnings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105struct sched_param;
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700106struct request_sock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
108/* bprm_apply_creds unsafe reasons */
109#define LSM_UNSAFE_SHARE 1
110#define LSM_UNSAFE_PTRACE 2
111#define LSM_UNSAFE_PTRACE_CAP 4
112
113#ifdef CONFIG_SECURITY
114
Eric Parise0007522008-03-05 10:31:54 -0500115struct security_mnt_opts {
116 char **mnt_opts;
117 int *mnt_opts_flags;
118 int num_mnt_opts;
119};
120
121static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
122{
123 opts->mnt_opts = NULL;
124 opts->mnt_opts_flags = NULL;
125 opts->num_mnt_opts = 0;
126}
127
128static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
129{
130 int i;
131 if (opts->mnt_opts)
Eric Paris7b41b172008-04-23 14:10:25 -0400132 for (i = 0; i < opts->num_mnt_opts; i++)
Eric Parise0007522008-03-05 10:31:54 -0500133 kfree(opts->mnt_opts[i]);
134 kfree(opts->mnt_opts);
135 opts->mnt_opts = NULL;
136 kfree(opts->mnt_opts_flags);
137 opts->mnt_opts_flags = NULL;
138 opts->num_mnt_opts = 0;
139}
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141/**
142 * struct security_operations - main security structure
143 *
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200144 * Security module identifier.
145 *
146 * @name:
147 * A string that acts as a unique identifeir for the LSM with max number
148 * of characters = SECURITY_NAME_MAX.
149 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 * Security hooks for program execution operations.
151 *
152 * @bprm_alloc_security:
153 * Allocate and attach a security structure to the @bprm->security field.
154 * The security field is initialized to NULL when the bprm structure is
155 * allocated.
156 * @bprm contains the linux_binprm structure to be modified.
157 * Return 0 if operation was successful.
158 * @bprm_free_security:
159 * @bprm contains the linux_binprm structure to be modified.
160 * Deallocate and clear the @bprm->security field.
161 * @bprm_apply_creds:
162 * Compute and set the security attributes of a process being transformed
163 * by an execve operation based on the old attributes (current->security)
164 * and the information saved in @bprm->security by the set_security hook.
165 * Since this hook function (and its caller) are void, this hook can not
166 * return an error. However, it can leave the security attributes of the
167 * process unchanged if an access failure occurs at this point.
168 * bprm_apply_creds is called under task_lock. @unsafe indicates various
169 * reasons why it may be unsafe to change security state.
170 * @bprm contains the linux_binprm structure.
171 * @bprm_post_apply_creds:
172 * Runs after bprm_apply_creds with the task_lock dropped, so that
173 * functions which cannot be called safely under the task_lock can
174 * be used. This hook is a good place to perform state changes on
175 * the process such as closing open file descriptors to which access
176 * is no longer granted if the attributes were changed.
177 * Note that a security module might need to save state between
178 * bprm_apply_creds and bprm_post_apply_creds to store the decision
179 * on whether the process may proceed.
180 * @bprm contains the linux_binprm structure.
181 * @bprm_set_security:
182 * Save security information in the bprm->security field, typically based
183 * on information about the bprm->file, for later use by the apply_creds
184 * hook. This hook may also optionally check permissions (e.g. for
185 * transitions between security domains).
186 * This hook may be called multiple times during a single execve, e.g. for
187 * interpreters. The hook can tell whether it has already been called by
188 * checking to see if @bprm->security is non-NULL. If so, then the hook
189 * may decide either to retain the security information saved earlier or
190 * to replace it.
191 * @bprm contains the linux_binprm structure.
192 * Return 0 if the hook is successful and permission is granted.
193 * @bprm_check_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400194 * This hook mediates the point when a search for a binary handler will
195 * begin. It allows a check the @bprm->security value which is set in
196 * the preceding set_security call. The primary difference from
197 * set_security is that the argv list and envp list are reliably
198 * available in @bprm. This hook may be called multiple times
199 * during a single execve; and in each pass set_security is called
200 * first.
201 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 * Return 0 if the hook is successful and permission is granted.
203 * @bprm_secureexec:
Eric Paris7b41b172008-04-23 14:10:25 -0400204 * Return a boolean value (0 or 1) indicating whether a "secure exec"
205 * is required. The flag is passed in the auxiliary table
206 * on the initial stack to the ELF interpreter to indicate whether libc
207 * should enable secure mode.
208 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 *
210 * Security hooks for filesystem operations.
211 *
212 * @sb_alloc_security:
213 * Allocate and attach a security structure to the sb->s_security field.
214 * The s_security field is initialized to NULL when the structure is
215 * allocated.
216 * @sb contains the super_block structure to be modified.
217 * Return 0 if operation was successful.
218 * @sb_free_security:
219 * Deallocate and clear the sb->s_security field.
220 * @sb contains the super_block structure to be modified.
221 * @sb_statfs:
David Howells726c3342006-06-23 02:02:58 -0700222 * Check permission before obtaining filesystem statistics for the @mnt
223 * mountpoint.
224 * @dentry is a handle on the superblock for the filesystem.
Eric Paris7b41b172008-04-23 14:10:25 -0400225 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 * @sb_mount:
227 * Check permission before an object specified by @dev_name is mounted on
228 * the mount point named by @nd. For an ordinary mount, @dev_name
229 * identifies a device if the file system type requires a device. For a
230 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
231 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
232 * pathname of the object being mounted.
233 * @dev_name contains the name for object being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400234 * @path contains the path for mount point object.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235 * @type contains the filesystem type.
236 * @flags contains the mount flags.
237 * @data contains the filesystem-specific data.
238 * Return 0 if permission is granted.
239 * @sb_copy_data:
240 * Allow mount option data to be copied prior to parsing by the filesystem,
241 * so that the security module can extract security-specific mount
242 * options cleanly (a filesystem may modify the data e.g. with strsep()).
243 * This also allows the original mount data to be stripped of security-
244 * specific options to avoid having to make filesystems aware of them.
245 * @type the type of filesystem being mounted.
246 * @orig the original mount data copied from userspace.
247 * @copy copied data which will be passed to the security module.
248 * Returns 0 if the copy was successful.
249 * @sb_check_sb:
250 * Check permission before the device with superblock @mnt->sb is mounted
251 * on the mount point named by @nd.
252 * @mnt contains the vfsmount for device being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400253 * @path contains the path for the mount point.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 * Return 0 if permission is granted.
255 * @sb_umount:
256 * Check permission before the @mnt file system is unmounted.
257 * @mnt contains the mounted file system.
258 * @flags contains the unmount flags, e.g. MNT_FORCE.
259 * Return 0 if permission is granted.
260 * @sb_umount_close:
261 * Close any files in the @mnt mounted filesystem that are held open by
262 * the security module. This hook is called during an umount operation
263 * prior to checking whether the filesystem is still busy.
264 * @mnt contains the mounted filesystem.
265 * @sb_umount_busy:
266 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
267 * any files that were closed by umount_close. This hook is called during
268 * an umount operation if the umount fails after a call to the
269 * umount_close hook.
270 * @mnt contains the mounted filesystem.
271 * @sb_post_remount:
272 * Update the security module's state when a filesystem is remounted.
273 * This hook is only called if the remount was successful.
274 * @mnt contains the mounted file system.
275 * @flags contains the new filesystem flags.
276 * @data contains the filesystem-specific data.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277 * @sb_post_addmount:
278 * Update the security module's state when a filesystem is mounted.
279 * This hook is called any time a mount is successfully grafetd to
280 * the tree.
281 * @mnt contains the mounted filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400282 * @mountpoint contains the path for the mount point.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 * @sb_pivotroot:
284 * Check permission before pivoting the root filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400285 * @old_path contains the path for the new location of the current root (put_old).
Eric Paris7b41b172008-04-23 14:10:25 -0400286 * @new_path contains the path for the new root (new_root).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 * Return 0 if permission is granted.
288 * @sb_post_pivotroot:
289 * Update module state after a successful pivot.
Al Virob5266eb2008-03-22 17:48:24 -0400290 * @old_path contains the path for the old root.
Eric Paris7b41b172008-04-23 14:10:25 -0400291 * @new_path contains the path for the new root.
Eric Parisc9180a52007-11-30 13:00:35 -0500292 * @sb_set_mnt_opts:
293 * Set the security relevant mount options used for a superblock
294 * @sb the superblock to set security mount options for
Eric Parise0007522008-03-05 10:31:54 -0500295 * @opts binary data structure containing all lsm mount data
Eric Parisc9180a52007-11-30 13:00:35 -0500296 * @sb_clone_mnt_opts:
297 * Copy all security options from a given superblock to another
298 * @oldsb old superblock which contain information to clone
299 * @newsb new superblock which needs filled in
Eric Parise0007522008-03-05 10:31:54 -0500300 * @sb_parse_opts_str:
301 * Parse a string of security data filling in the opts structure
302 * @options string containing all mount options known by the LSM
303 * @opts binary data structure usable by the LSM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304 *
305 * Security hooks for inode operations.
306 *
307 * @inode_alloc_security:
308 * Allocate and attach a security structure to @inode->i_security. The
309 * i_security field is initialized to NULL when the inode structure is
310 * allocated.
311 * @inode contains the inode structure.
312 * Return 0 if operation was successful.
313 * @inode_free_security:
314 * @inode contains the inode structure.
315 * Deallocate the inode security structure and set @inode->i_security to
Eric Paris7b41b172008-04-23 14:10:25 -0400316 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700317 * @inode_init_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400318 * Obtain the security attribute name suffix and value to set on a newly
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700319 * created inode and set up the incore security field for the new inode.
320 * This hook is called by the fs code as part of the inode creation
321 * transaction and provides for atomic labeling of the inode, unlike
322 * the post_create/mkdir/... hooks called by the VFS. The hook function
323 * is expected to allocate the name and value via kmalloc, with the caller
324 * being responsible for calling kfree after using them.
325 * If the security module does not use security attributes or does
326 * not wish to put a security attribute on this particular inode,
327 * then it should return -EOPNOTSUPP to skip this processing.
328 * @inode contains the inode structure of the newly created inode.
329 * @dir contains the inode structure of the parent directory.
330 * @name will be set to the allocated name suffix (e.g. selinux).
331 * @value will be set to the allocated attribute value.
332 * @len will be set to the length of the value.
333 * Returns 0 if @name and @value have been successfully set,
334 * -EOPNOTSUPP if no security attribute is needed, or
335 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 * @inode_create:
337 * Check permission to create a regular file.
338 * @dir contains inode structure of the parent of the new file.
339 * @dentry contains the dentry structure for the file to be created.
340 * @mode contains the file mode of the file to be created.
341 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 * @inode_link:
343 * Check permission before creating a new hard link to a file.
344 * @old_dentry contains the dentry structure for an existing link to the file.
345 * @dir contains the inode structure of the parent directory of the new link.
346 * @new_dentry contains the dentry structure for the new link.
347 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 * @inode_unlink:
Eric Paris7b41b172008-04-23 14:10:25 -0400349 * Check the permission to remove a hard link to a file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 * @dir contains the inode structure of parent directory of the file.
351 * @dentry contains the dentry structure for file to be unlinked.
352 * Return 0 if permission is granted.
353 * @inode_symlink:
354 * Check the permission to create a symbolic link to a file.
355 * @dir contains the inode structure of parent directory of the symbolic link.
356 * @dentry contains the dentry structure of the symbolic link.
357 * @old_name contains the pathname of file.
358 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 * @inode_mkdir:
360 * Check permissions to create a new directory in the existing directory
Eric Paris7b41b172008-04-23 14:10:25 -0400361 * associated with inode strcture @dir.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 * @dir containst the inode structure of parent of the directory to be created.
363 * @dentry contains the dentry structure of new directory.
364 * @mode contains the mode of new directory.
365 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366 * @inode_rmdir:
367 * Check the permission to remove a directory.
368 * @dir contains the inode structure of parent of the directory to be removed.
369 * @dentry contains the dentry structure of directory to be removed.
370 * Return 0 if permission is granted.
371 * @inode_mknod:
372 * Check permissions when creating a special file (or a socket or a fifo
373 * file created via the mknod system call). Note that if mknod operation
374 * is being done for a regular file, then the create hook will be called
375 * and not this hook.
376 * @dir contains the inode structure of parent of the new file.
377 * @dentry contains the dentry structure of the new file.
378 * @mode contains the mode of the new file.
Michael Opdenacker59c51592007-05-09 08:57:56 +0200379 * @dev contains the device number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 * @inode_rename:
382 * Check for permission to rename a file or directory.
383 * @old_dir contains the inode structure for parent of the old link.
384 * @old_dentry contains the dentry structure of the old link.
385 * @new_dir contains the inode structure for parent of the new link.
386 * @new_dentry contains the dentry structure of the new link.
387 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 * @inode_readlink:
389 * Check the permission to read the symbolic link.
390 * @dentry contains the dentry structure for the file link.
391 * Return 0 if permission is granted.
392 * @inode_follow_link:
393 * Check permission to follow a symbolic link when looking up a pathname.
394 * @dentry contains the dentry structure for the link.
395 * @nd contains the nameidata structure for the parent directory.
396 * Return 0 if permission is granted.
397 * @inode_permission:
398 * Check permission before accessing an inode. This hook is called by the
399 * existing Linux permission function, so a security module can use it to
400 * provide additional checking for existing Linux permission checks.
401 * Notice that this hook is called when a file is opened (as well as many
402 * other operations), whereas the file_security_ops permission hook is
403 * called when the actual read/write operations are performed.
404 * @inode contains the inode structure to check.
405 * @mask contains the permission mask.
Eric Paris7b41b172008-04-23 14:10:25 -0400406 * @nd contains the nameidata (may be NULL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 * Return 0 if permission is granted.
408 * @inode_setattr:
409 * Check permission before setting file attributes. Note that the kernel
410 * call to notify_change is performed from several locations, whenever
411 * file attributes change (such as when a file is truncated, chown/chmod
412 * operations, transferring disk quotas, etc).
413 * @dentry contains the dentry structure for the file.
414 * @attr is the iattr structure containing the new file attributes.
415 * Return 0 if permission is granted.
416 * @inode_getattr:
417 * Check permission before obtaining file attributes.
418 * @mnt is the vfsmount where the dentry was looked up
419 * @dentry contains the dentry structure for the file.
420 * Return 0 if permission is granted.
421 * @inode_delete:
422 * @inode contains the inode structure for deleted inode.
423 * This hook is called when a deleted inode is released (i.e. an inode
424 * with no hard links has its use count drop to zero). A security module
425 * can use this hook to release any persistent label associated with the
426 * inode.
427 * @inode_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400428 * Check permission before setting the extended attributes
429 * @value identified by @name for @dentry.
430 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 * @inode_post_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400432 * Update inode security field after successful setxattr operation.
433 * @value identified by @name for @dentry.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434 * @inode_getxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400435 * Check permission before obtaining the extended attributes
436 * identified by @name for @dentry.
437 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 * @inode_listxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400439 * Check permission before obtaining the list of extended attribute
440 * names for @dentry.
441 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 * @inode_removexattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400443 * Check permission before removing the extended attribute
444 * identified by @name for @dentry.
445 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 * @inode_getsecurity:
David P. Quigley42492592008-02-04 22:29:39 -0800447 * Retrieve a copy of the extended attribute representation of the
448 * security label associated with @name for @inode via @buffer. Note that
449 * @name is the remainder of the attribute name after the security prefix
450 * has been removed. @alloc is used to specify of the call should return a
451 * value via the buffer or just the value length Return size of buffer on
452 * success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 * @inode_setsecurity:
454 * Set the security label associated with @name for @inode from the
455 * extended attribute value @value. @size indicates the size of the
456 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
Eric Paris7b41b172008-04-23 14:10:25 -0400457 * Note that @name is the remainder of the attribute name after the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 * security. prefix has been removed.
459 * Return 0 on success.
460 * @inode_listsecurity:
461 * Copy the extended attribute names for the security labels
462 * associated with @inode into @buffer. The maximum size of @buffer
463 * is specified by @buffer_size. @buffer may be NULL to request
464 * the size of the buffer required.
465 * Returns number of bytes used/required on success.
Serge E. Hallynb5376772007-10-16 23:31:36 -0700466 * @inode_need_killpriv:
467 * Called when an inode has been changed.
468 * @dentry is the dentry being changed.
469 * Return <0 on error to abort the inode change operation.
470 * Return 0 if inode_killpriv does not need to be called.
471 * Return >0 if inode_killpriv does need to be called.
472 * @inode_killpriv:
473 * The setuid bit is being removed. Remove similar security labels.
474 * Called with the dentry->d_inode->i_mutex held.
475 * @dentry is the dentry being changed.
476 * Return 0 on success. If error is returned, then the operation
477 * causing setuid bit removal is failed.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200478 * @inode_getsecid:
479 * Get the secid associated with the node.
480 * @inode contains a pointer to the inode.
481 * @secid contains a pointer to the location where result will be saved.
482 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 *
484 * Security hooks for file operations
485 *
486 * @file_permission:
487 * Check file permissions before accessing an open file. This hook is
488 * called by various operations that read or write files. A security
489 * module can use this hook to perform additional checking on these
490 * operations, e.g. to revalidate permissions on use to support privilege
491 * bracketing or policy changes. Notice that this hook is used when the
492 * actual read/write operations are performed, whereas the
493 * inode_security_ops hook is called when a file is opened (as well as
494 * many other operations).
495 * Caveat: Although this hook can be used to revalidate permissions for
496 * various system call operations that read or write files, it does not
497 * address the revalidation of permissions for memory-mapped files.
498 * Security modules must handle this separately if they need such
499 * revalidation.
500 * @file contains the file structure being accessed.
501 * @mask contains the requested permissions.
502 * Return 0 if permission is granted.
503 * @file_alloc_security:
504 * Allocate and attach a security structure to the file->f_security field.
505 * The security field is initialized to NULL when the structure is first
506 * created.
507 * @file contains the file structure to secure.
508 * Return 0 if the hook is successful and permission is granted.
509 * @file_free_security:
510 * Deallocate and free any security structures stored in file->f_security.
511 * @file contains the file structure being modified.
512 * @file_ioctl:
513 * @file contains the file structure.
514 * @cmd contains the operation to perform.
515 * @arg contains the operational arguments.
516 * Check permission for an ioctl operation on @file. Note that @arg can
517 * sometimes represents a user space pointer; in other cases, it may be a
518 * simple integer value. When @arg represents a user space pointer, it
519 * should never be used by the security module.
520 * Return 0 if permission is granted.
521 * @file_mmap :
522 * Check permissions for a mmap operation. The @file may be NULL, e.g.
523 * if mapping anonymous memory.
524 * @file contains the file structure for file to map (may be NULL).
525 * @reqprot contains the protection requested by the application.
526 * @prot contains the protection that will be applied by the kernel.
527 * @flags contains the operational flags.
528 * Return 0 if permission is granted.
529 * @file_mprotect:
530 * Check permissions before changing memory access permissions.
531 * @vma contains the memory region to modify.
532 * @reqprot contains the protection requested by the application.
533 * @prot contains the protection that will be applied by the kernel.
534 * Return 0 if permission is granted.
535 * @file_lock:
536 * Check permission before performing file locking operations.
537 * Note: this hook mediates both flock and fcntl style locks.
538 * @file contains the file structure.
539 * @cmd contains the posix-translated lock operation to perform
540 * (e.g. F_RDLCK, F_WRLCK).
541 * Return 0 if permission is granted.
542 * @file_fcntl:
543 * Check permission before allowing the file operation specified by @cmd
544 * from being performed on the file @file. Note that @arg can sometimes
545 * represents a user space pointer; in other cases, it may be a simple
546 * integer value. When @arg represents a user space pointer, it should
547 * never be used by the security module.
548 * @file contains the file structure.
549 * @cmd contains the operation to be performed.
550 * @arg contains the operational arguments.
551 * Return 0 if permission is granted.
552 * @file_set_fowner:
553 * Save owner security information (typically from current->security) in
554 * file->f_security for later use by the send_sigiotask hook.
555 * @file contains the file structure to update.
556 * Return 0 on success.
557 * @file_send_sigiotask:
558 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
559 * process @tsk. Note that this hook is sometimes called from interrupt.
560 * Note that the fown_struct, @fown, is never outside the context of a
561 * struct file, so the file structure (and associated security information)
562 * can always be obtained:
Robert P. J. Dayb385a142007-02-10 01:46:25 -0800563 * container_of(fown, struct file, f_owner)
Eric Paris7b41b172008-04-23 14:10:25 -0400564 * @tsk contains the structure of task receiving signal.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565 * @fown contains the file owner information.
566 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
567 * Return 0 if permission is granted.
568 * @file_receive:
569 * This hook allows security modules to control the ability of a process
570 * to receive an open file descriptor via socket IPC.
571 * @file contains the file structure being received.
572 * Return 0 if permission is granted.
573 *
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +0900574 * Security hook for dentry
575 *
576 * @dentry_open
577 * Save open-time permission checking state for later use upon
578 * file_permission, and recheck access if anything has changed
579 * since inode_permission.
580 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581 * Security hooks for task operations.
582 *
583 * @task_create:
584 * Check permission before creating a child process. See the clone(2)
585 * manual page for definitions of the @clone_flags.
586 * @clone_flags contains the flags indicating what should be shared.
587 * Return 0 if permission is granted.
588 * @task_alloc_security:
589 * @p contains the task_struct for child process.
590 * Allocate and attach a security structure to the p->security field. The
591 * security field is initialized to NULL when the task structure is
592 * allocated.
593 * Return 0 if operation was successful.
594 * @task_free_security:
595 * @p contains the task_struct for process.
596 * Deallocate and clear the p->security field.
597 * @task_setuid:
598 * Check permission before setting one or more of the user identity
599 * attributes of the current process. The @flags parameter indicates
600 * which of the set*uid system calls invoked this hook and how to
601 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
602 * definitions at the beginning of this file for the @flags values and
603 * their meanings.
604 * @id0 contains a uid.
605 * @id1 contains a uid.
606 * @id2 contains a uid.
607 * @flags contains one of the LSM_SETID_* values.
608 * Return 0 if permission is granted.
609 * @task_post_setuid:
610 * Update the module's state after setting one or more of the user
611 * identity attributes of the current process. The @flags parameter
612 * indicates which of the set*uid system calls invoked this hook. If
613 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
614 * parameters are not used.
615 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
616 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
617 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
618 * @flags contains one of the LSM_SETID_* values.
619 * Return 0 on success.
620 * @task_setgid:
621 * Check permission before setting one or more of the group identity
622 * attributes of the current process. The @flags parameter indicates
623 * which of the set*gid system calls invoked this hook and how to
624 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
625 * definitions at the beginning of this file for the @flags values and
626 * their meanings.
627 * @id0 contains a gid.
628 * @id1 contains a gid.
629 * @id2 contains a gid.
630 * @flags contains one of the LSM_SETID_* values.
631 * Return 0 if permission is granted.
632 * @task_setpgid:
633 * Check permission before setting the process group identifier of the
634 * process @p to @pgid.
635 * @p contains the task_struct for process being modified.
636 * @pgid contains the new pgid.
637 * Return 0 if permission is granted.
638 * @task_getpgid:
639 * Check permission before getting the process group identifier of the
640 * process @p.
641 * @p contains the task_struct for the process.
642 * Return 0 if permission is granted.
643 * @task_getsid:
644 * Check permission before getting the session identifier of the process
645 * @p.
646 * @p contains the task_struct for the process.
647 * Return 0 if permission is granted.
David Quigleyf9008e42006-06-30 01:55:46 -0700648 * @task_getsecid:
649 * Retrieve the security identifier of the process @p.
650 * @p contains the task_struct for the process and place is into @secid.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200651 * In case of failure, @secid will be set to zero.
652 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 * @task_setgroups:
654 * Check permission before setting the supplementary group set of the
655 * current process.
656 * @group_info contains the new group information.
657 * Return 0 if permission is granted.
658 * @task_setnice:
659 * Check permission before setting the nice value of @p to @nice.
660 * @p contains the task_struct of process.
661 * @nice contains the new nice value.
662 * Return 0 if permission is granted.
James Morris03e68062006-06-23 02:03:58 -0700663 * @task_setioprio
664 * Check permission before setting the ioprio value of @p to @ioprio.
665 * @p contains the task_struct of process.
666 * @ioprio contains the new ioprio value
667 * Return 0 if permission is granted.
David Quigleya1836a42006-06-30 01:55:49 -0700668 * @task_getioprio
669 * Check permission before getting the ioprio value of @p.
670 * @p contains the task_struct of process.
671 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672 * @task_setrlimit:
673 * Check permission before setting the resource limits of the current
674 * process for @resource to @new_rlim. The old resource limit values can
675 * be examined by dereferencing (current->signal->rlim + resource).
676 * @resource contains the resource whose limit is being set.
677 * @new_rlim contains the new limits for @resource.
678 * Return 0 if permission is granted.
679 * @task_setscheduler:
680 * Check permission before setting scheduling policy and/or parameters of
681 * process @p based on @policy and @lp.
682 * @p contains the task_struct for process.
683 * @policy contains the scheduling policy.
684 * @lp contains the scheduling parameters.
685 * Return 0 if permission is granted.
686 * @task_getscheduler:
687 * Check permission before obtaining scheduling information for process
688 * @p.
689 * @p contains the task_struct for process.
690 * Return 0 if permission is granted.
David Quigley35601542006-06-23 02:04:01 -0700691 * @task_movememory
692 * Check permission before moving memory owned by process @p.
693 * @p contains the task_struct for process.
694 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695 * @task_kill:
696 * Check permission before sending signal @sig to @p. @info can be NULL,
697 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
698 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
699 * from the kernel and should typically be permitted.
700 * SIGIO signals are handled separately by the send_sigiotask hook in
701 * file_security_ops.
702 * @p contains the task_struct for process.
703 * @info contains the signal information.
704 * @sig contains the signal value.
David Quigleyf9008e42006-06-30 01:55:46 -0700705 * @secid contains the sid of the process where the signal originated
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 * Return 0 if permission is granted.
707 * @task_wait:
708 * Check permission before allowing a process to reap a child process @p
709 * and collect its status information.
710 * @p contains the task_struct for process.
711 * Return 0 if permission is granted.
712 * @task_prctl:
713 * Check permission before performing a process control operation on the
714 * current process.
715 * @option contains the operation.
716 * @arg2 contains a argument.
717 * @arg3 contains a argument.
718 * @arg4 contains a argument.
719 * @arg5 contains a argument.
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -0700720 * @rc_p contains a pointer to communicate back the forced return code
721 * Return 0 if permission is granted, and non-zero if the security module
722 * has taken responsibility (setting *rc_p) for the prctl call.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723 * @task_reparent_to_init:
Eric Paris7b41b172008-04-23 14:10:25 -0400724 * Set the security attributes in @p->security for a kernel thread that
725 * is being reparented to the init task.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 * @p contains the task_struct for the kernel thread.
727 * @task_to_inode:
Eric Paris7b41b172008-04-23 14:10:25 -0400728 * Set the security attributes for an inode based on an associated task's
729 * security attributes, e.g. for /proc/pid inodes.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 * @p contains the task_struct for the task.
731 * @inode contains the inode structure for the inode.
732 *
733 * Security hooks for Netlink messaging.
734 *
735 * @netlink_send:
736 * Save security information for a netlink message so that permission
737 * checking can be performed when the message is processed. The security
738 * information can be saved using the eff_cap field of the
Eric Paris7b41b172008-04-23 14:10:25 -0400739 * netlink_skb_parms structure. Also may be used to provide fine
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 * grained control over message transmission.
741 * @sk associated sock of task sending the message.,
742 * @skb contains the sk_buff structure for the netlink message.
743 * Return 0 if the information was successfully saved and message
744 * is allowed to be transmitted.
745 * @netlink_recv:
746 * Check permission before processing the received netlink message in
747 * @skb.
748 * @skb contains the sk_buff structure for the netlink message.
Darrel Goeddelc7bdb542006-06-27 13:26:11 -0700749 * @cap indicates the capability required
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750 * Return 0 if permission is granted.
751 *
752 * Security hooks for Unix domain networking.
753 *
754 * @unix_stream_connect:
755 * Check permissions before establishing a Unix domain stream connection
756 * between @sock and @other.
757 * @sock contains the socket structure.
758 * @other contains the peer socket structure.
759 * Return 0 if permission is granted.
760 * @unix_may_send:
761 * Check permissions before connecting or sending datagrams from @sock to
762 * @other.
763 * @sock contains the socket structure.
764 * @sock contains the peer socket structure.
765 * Return 0 if permission is granted.
766 *
767 * The @unix_stream_connect and @unix_may_send hooks were necessary because
768 * Linux provides an alternative to the conventional file name space for Unix
769 * domain sockets. Whereas binding and connecting to sockets in the file name
770 * space is mediated by the typical file permissions (and caught by the mknod
771 * and permission hooks in inode_security_ops), binding and connecting to
772 * sockets in the abstract name space is completely unmediated. Sufficient
773 * control of Unix domain sockets in the abstract name space isn't possible
774 * using only the socket layer hooks, since we need to know the actual target
775 * socket, which is not looked up until we are inside the af_unix code.
776 *
777 * Security hooks for socket operations.
778 *
779 * @socket_create:
780 * Check permissions prior to creating a new socket.
781 * @family contains the requested protocol family.
782 * @type contains the requested communications type.
783 * @protocol contains the requested protocol.
784 * @kern set to 1 if a kernel socket.
785 * Return 0 if permission is granted.
786 * @socket_post_create:
787 * This hook allows a module to update or allocate a per-socket security
788 * structure. Note that the security field was not added directly to the
789 * socket structure, but rather, the socket security information is stored
790 * in the associated inode. Typically, the inode alloc_security hook will
791 * allocate and and attach security information to
792 * sock->inode->i_security. This hook may be used to update the
793 * sock->inode->i_security field with additional information that wasn't
794 * available when the inode was allocated.
795 * @sock contains the newly created socket structure.
796 * @family contains the requested protocol family.
797 * @type contains the requested communications type.
798 * @protocol contains the requested protocol.
799 * @kern set to 1 if a kernel socket.
800 * @socket_bind:
801 * Check permission before socket protocol layer bind operation is
802 * performed and the socket @sock is bound to the address specified in the
803 * @address parameter.
804 * @sock contains the socket structure.
805 * @address contains the address to bind to.
806 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400807 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808 * @socket_connect:
809 * Check permission before socket protocol layer connect operation
810 * attempts to connect socket @sock to a remote address, @address.
811 * @sock contains the socket structure.
812 * @address contains the address of remote endpoint.
813 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400814 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815 * @socket_listen:
816 * Check permission before socket protocol layer listen operation.
817 * @sock contains the socket structure.
818 * @backlog contains the maximum length for the pending connection queue.
819 * Return 0 if permission is granted.
820 * @socket_accept:
821 * Check permission before accepting a new connection. Note that the new
822 * socket, @newsock, has been created and some information copied to it,
823 * but the accept operation has not actually been performed.
824 * @sock contains the listening socket structure.
825 * @newsock contains the newly created server socket for connection.
826 * Return 0 if permission is granted.
827 * @socket_post_accept:
828 * This hook allows a security module to copy security
829 * information into the newly created socket's inode.
830 * @sock contains the listening socket structure.
831 * @newsock contains the newly created server socket for connection.
832 * @socket_sendmsg:
833 * Check permission before transmitting a message to another socket.
834 * @sock contains the socket structure.
835 * @msg contains the message to be transmitted.
836 * @size contains the size of message.
837 * Return 0 if permission is granted.
838 * @socket_recvmsg:
839 * Check permission before receiving a message from a socket.
840 * @sock contains the socket structure.
841 * @msg contains the message structure.
842 * @size contains the size of message structure.
843 * @flags contains the operational flags.
Eric Paris7b41b172008-04-23 14:10:25 -0400844 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 * @socket_getsockname:
846 * Check permission before the local address (name) of the socket object
847 * @sock is retrieved.
848 * @sock contains the socket structure.
849 * Return 0 if permission is granted.
850 * @socket_getpeername:
851 * Check permission before the remote address (name) of a socket object
852 * @sock is retrieved.
853 * @sock contains the socket structure.
854 * Return 0 if permission is granted.
855 * @socket_getsockopt:
856 * Check permissions before retrieving the options associated with socket
857 * @sock.
858 * @sock contains the socket structure.
859 * @level contains the protocol level to retrieve option from.
860 * @optname contains the name of option to retrieve.
861 * Return 0 if permission is granted.
862 * @socket_setsockopt:
863 * Check permissions before setting the options associated with socket
864 * @sock.
865 * @sock contains the socket structure.
866 * @level contains the protocol level to set options for.
867 * @optname contains the name of the option to set.
Eric Paris7b41b172008-04-23 14:10:25 -0400868 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869 * @socket_shutdown:
870 * Checks permission before all or part of a connection on the socket
871 * @sock is shut down.
872 * @sock contains the socket structure.
873 * @how contains the flag indicating how future sends and receives are handled.
874 * Return 0 if permission is granted.
875 * @socket_sock_rcv_skb:
876 * Check permissions on incoming network packets. This hook is distinct
877 * from Netfilter's IP input hooks since it is the first time that the
878 * incoming sk_buff @skb has been associated with a particular socket, @sk.
879 * @sk contains the sock (not socket) associated with the incoming sk_buff.
880 * @skb contains the incoming network data.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200881 * @socket_getpeersec_stream:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882 * This hook allows the security module to provide peer socket security
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200883 * state for unix or connected tcp sockets to userspace via getsockopt
884 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
885 * socket is associated with an ipsec SA.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886 * @sock is the local socket.
887 * @optval userspace memory where the security state is to be copied.
888 * @optlen userspace int where the module should copy the actual length
889 * of the security state.
890 * @len as input is the maximum length to copy to userspace provided
891 * by the caller.
892 * Return 0 if all is well, otherwise, typical getsockopt return
893 * values.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200894 * @socket_getpeersec_dgram:
Eric Paris7b41b172008-04-23 14:10:25 -0400895 * This hook allows the security module to provide peer socket security
896 * state for udp sockets on a per-packet basis to userspace via
897 * getsockopt SO_GETPEERSEC. The application must first have indicated
898 * the IP_PASSSEC option via getsockopt. It can then retrieve the
899 * security state returned by this hook for a packet via the SCM_SECURITY
900 * ancillary message type.
901 * @skb is the skbuff for the packet being queried
902 * @secdata is a pointer to a buffer in which to copy the security data
903 * @seclen is the maximum length for @secdata
904 * Return 0 on success, error on failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905 * @sk_alloc_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400906 * Allocate and attach a security structure to the sk->sk_security field,
907 * which is used to copy security attributes between local stream sockets.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908 * @sk_free_security:
909 * Deallocate security structure.
Venkat Yekkirala892c1412006-08-04 23:08:56 -0700910 * @sk_clone_security:
911 * Clone/copy security structure.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700912 * @sk_getsecid:
913 * Retrieve the LSM-specific secid for the sock to enable caching of network
Trent Jaegerdf718372005-12-13 23:12:27 -0800914 * authorizations.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700915 * @sock_graft:
916 * Sets the socket's isec sid to the sock's sid.
917 * @inet_conn_request:
918 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
919 * @inet_csk_clone:
920 * Sets the new child socket's sid to the openreq sid.
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600921 * @inet_conn_established:
Eric Paris7b41b172008-04-23 14:10:25 -0400922 * Sets the connection's peersid to the secmark on skb.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700923 * @req_classify_flow:
924 * Sets the flow's sid to the openreq sid.
Trent Jaegerdf718372005-12-13 23:12:27 -0800925 *
926 * Security hooks for XFRM operations.
927 *
928 * @xfrm_policy_alloc_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700929 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
930 * Database used by the XFRM system.
Trent Jaegerdf718372005-12-13 23:12:27 -0800931 * @sec_ctx contains the security context information being provided by
932 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700933 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600934 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -0800935 * Return 0 if operation was successful (memory to allocate, legal context)
936 * @xfrm_policy_clone_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700937 * @old_ctx contains an existing xfrm_sec_ctx.
938 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
939 * Allocate a security structure in new_ctxp that contains the
940 * information from the old_ctx structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800941 * Return 0 if operation was successful (memory to allocate).
942 * @xfrm_policy_free_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700943 * @ctx contains the xfrm_sec_ctx
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700944 * Deallocate xp->security.
945 * @xfrm_policy_delete_security:
Paul Moore03e1ad72008-04-12 19:07:52 -0700946 * @ctx contains the xfrm_sec_ctx.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700947 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800948 * @xfrm_state_alloc_security:
949 * @x contains the xfrm_state being added to the Security Association
950 * Database by the XFRM system.
951 * @sec_ctx contains the security context information being provided by
952 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700953 * @secid contains the secid from which to take the mls portion of the context.
954 * Allocate a security structure to the x->security field; the security
955 * field is initialized to NULL when the xfrm_state is allocated. Set the
956 * context to correspond to either sec_ctx or polsec, with the mls portion
957 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -0800958 * Return 0 if operation was successful (memory to allocate, legal context).
959 * @xfrm_state_free_security:
960 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700961 * Deallocate x->security.
962 * @xfrm_state_delete_security:
963 * @x contains the xfrm_state.
964 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -0800965 * @xfrm_policy_lookup:
Paul Moore03e1ad72008-04-12 19:07:52 -0700966 * @ctx contains the xfrm_sec_ctx for which the access control is being
Trent Jaegerdf718372005-12-13 23:12:27 -0800967 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700968 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -0800969 * access to the policy xp.
970 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700971 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -0800972 * XFRMs on a packet. The hook is called when selecting either a
973 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -0500974 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
975 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700976 * @xfrm_state_pol_flow_match:
977 * @x contains the state to match.
978 * @xp contains the policy to check for a match.
979 * @fl contains the flow to check for a match.
980 * Return 1 if there is a match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700981 * @xfrm_decode_session:
982 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700983 * @secid points to the flow key secid to set.
984 * @ckall says if all xfrms used should be checked for same secid.
985 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986 *
David Howells29db9192005-10-30 15:02:44 -0800987 * Security hooks affecting all Key Management operations
988 *
989 * @key_alloc:
990 * Permit allocation of a key and assign security data. Note that key does
991 * not have a serial number assigned at this point.
992 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -0700993 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -0800994 * Return 0 if permission is granted, -ve error otherwise.
995 * @key_free:
996 * Notification of destruction; free security data.
997 * @key points to the key.
998 * No return value.
999 * @key_permission:
1000 * See whether a specific operational right is granted to a process on a
Eric Paris7b41b172008-04-23 14:10:25 -04001001 * key.
David Howells29db9192005-10-30 15:02:44 -08001002 * @key_ref refers to the key (key pointer + possession attribute bit).
1003 * @context points to the process to provide the context against which to
Eric Paris7b41b172008-04-23 14:10:25 -04001004 * evaluate the security data on the key.
David Howells29db9192005-10-30 15:02:44 -08001005 * @perm describes the combination of permissions required of this key.
1006 * Return 1 if permission granted, 0 if permission denied and -ve it the
Eric Paris7b41b172008-04-23 14:10:25 -04001007 * normal permissions model should be effected.
David Howells70a5bb72008-04-29 01:01:26 -07001008 * @key_getsecurity:
1009 * Get a textual representation of the security context attached to a key
1010 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1011 * allocates the storage for the NUL-terminated string and the caller
1012 * should free it.
1013 * @key points to the key to be queried.
1014 * @_buffer points to a pointer that should be set to point to the
1015 * resulting string (if no label or an error occurs).
1016 * Return the length of the string (including terminating NUL) or -ve if
1017 * an error.
1018 * May also return 0 (and a NULL buffer pointer) if there is no label.
David Howells29db9192005-10-30 15:02:44 -08001019 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020 * Security hooks affecting all System V IPC operations.
1021 *
1022 * @ipc_permission:
1023 * Check permissions for access to IPC
1024 * @ipcp contains the kernel IPC permission structure
1025 * @flag contains the desired (requested) permission set
1026 * Return 0 if permission is granted.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001027 * @ipc_getsecid:
1028 * Get the secid associated with the ipc object.
1029 * @ipcp contains the kernel IPC permission structure.
1030 * @secid contains a pointer to the location where result will be saved.
1031 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032 *
1033 * Security hooks for individual messages held in System V IPC message queues
1034 * @msg_msg_alloc_security:
1035 * Allocate and attach a security structure to the msg->security field.
1036 * The security field is initialized to NULL when the structure is first
1037 * created.
1038 * @msg contains the message structure to be modified.
1039 * Return 0 if operation was successful and permission is granted.
1040 * @msg_msg_free_security:
1041 * Deallocate the security structure for this message.
1042 * @msg contains the message structure to be modified.
1043 *
1044 * Security hooks for System V IPC Message Queues
1045 *
1046 * @msg_queue_alloc_security:
1047 * Allocate and attach a security structure to the
1048 * msq->q_perm.security field. The security field is initialized to
1049 * NULL when the structure is first created.
1050 * @msq contains the message queue structure to be modified.
1051 * Return 0 if operation was successful and permission is granted.
1052 * @msg_queue_free_security:
1053 * Deallocate security structure for this message queue.
1054 * @msq contains the message queue structure to be modified.
1055 * @msg_queue_associate:
1056 * Check permission when a message queue is requested through the
1057 * msgget system call. This hook is only called when returning the
1058 * message queue identifier for an existing message queue, not when a
1059 * new message queue is created.
1060 * @msq contains the message queue to act upon.
1061 * @msqflg contains the operation control flags.
1062 * Return 0 if permission is granted.
1063 * @msg_queue_msgctl:
1064 * Check permission when a message control operation specified by @cmd
1065 * is to be performed on the message queue @msq.
1066 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1067 * @msq contains the message queue to act upon. May be NULL.
1068 * @cmd contains the operation to be performed.
Eric Paris7b41b172008-04-23 14:10:25 -04001069 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070 * @msg_queue_msgsnd:
1071 * Check permission before a message, @msg, is enqueued on the message
1072 * queue, @msq.
1073 * @msq contains the message queue to send message to.
1074 * @msg contains the message to be enqueued.
1075 * @msqflg contains operational flags.
1076 * Return 0 if permission is granted.
1077 * @msg_queue_msgrcv:
1078 * Check permission before a message, @msg, is removed from the message
Eric Paris7b41b172008-04-23 14:10:25 -04001079 * queue, @msq. The @target task structure contains a pointer to the
1080 * process that will be receiving the message (not equal to the current
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 * process when inline receives are being performed).
1082 * @msq contains the message queue to retrieve message from.
1083 * @msg contains the message destination.
1084 * @target contains the task structure for recipient process.
1085 * @type contains the type of message requested.
1086 * @mode contains the operational flags.
1087 * Return 0 if permission is granted.
1088 *
1089 * Security hooks for System V Shared Memory Segments
1090 *
1091 * @shm_alloc_security:
1092 * Allocate and attach a security structure to the shp->shm_perm.security
1093 * field. The security field is initialized to NULL when the structure is
1094 * first created.
1095 * @shp contains the shared memory structure to be modified.
1096 * Return 0 if operation was successful and permission is granted.
1097 * @shm_free_security:
1098 * Deallocate the security struct for this memory segment.
1099 * @shp contains the shared memory structure to be modified.
1100 * @shm_associate:
1101 * Check permission when a shared memory region is requested through the
1102 * shmget system call. This hook is only called when returning the shared
1103 * memory region identifier for an existing region, not when a new shared
1104 * memory region is created.
1105 * @shp contains the shared memory structure to be modified.
1106 * @shmflg contains the operation control flags.
1107 * Return 0 if permission is granted.
1108 * @shm_shmctl:
1109 * Check permission when a shared memory control operation specified by
1110 * @cmd is to be performed on the shared memory region @shp.
1111 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1112 * @shp contains shared memory structure to be modified.
1113 * @cmd contains the operation to be performed.
1114 * Return 0 if permission is granted.
1115 * @shm_shmat:
1116 * Check permissions prior to allowing the shmat system call to attach the
1117 * shared memory segment @shp to the data segment of the calling process.
1118 * The attaching address is specified by @shmaddr.
1119 * @shp contains the shared memory structure to be modified.
1120 * @shmaddr contains the address to attach memory region to.
1121 * @shmflg contains the operational flags.
1122 * Return 0 if permission is granted.
1123 *
1124 * Security hooks for System V Semaphores
1125 *
1126 * @sem_alloc_security:
1127 * Allocate and attach a security structure to the sma->sem_perm.security
1128 * field. The security field is initialized to NULL when the structure is
1129 * first created.
1130 * @sma contains the semaphore structure
1131 * Return 0 if operation was successful and permission is granted.
1132 * @sem_free_security:
1133 * deallocate security struct for this semaphore
1134 * @sma contains the semaphore structure.
1135 * @sem_associate:
1136 * Check permission when a semaphore is requested through the semget
1137 * system call. This hook is only called when returning the semaphore
1138 * identifier for an existing semaphore, not when a new one must be
1139 * created.
1140 * @sma contains the semaphore structure.
1141 * @semflg contains the operation control flags.
1142 * Return 0 if permission is granted.
1143 * @sem_semctl:
1144 * Check permission when a semaphore operation specified by @cmd is to be
Eric Paris7b41b172008-04-23 14:10:25 -04001145 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146 * IPC_INFO or SEM_INFO.
1147 * @sma contains the semaphore structure. May be NULL.
1148 * @cmd contains the operation to be performed.
1149 * Return 0 if permission is granted.
1150 * @sem_semop
1151 * Check permissions before performing operations on members of the
Eric Paris7b41b172008-04-23 14:10:25 -04001152 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1153 * may be modified.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 * @sma contains the semaphore structure.
1155 * @sops contains the operations to perform.
1156 * @nsops contains the number of operations to perform.
1157 * @alter contains the flag indicating whether changes are to be made.
1158 * Return 0 if permission is granted.
1159 *
David Howells5cd9c582008-08-14 11:37:28 +01001160 * @ptrace_may_access:
1161 * Check permission before allowing the current process to trace the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162 * @child process.
1163 * Security modules may also want to perform a process tracing check
1164 * during an execve in the set_security or apply_creds hooks of
1165 * binprm_security_ops if the process is being traced and its security
1166 * attributes would be changed by the execve.
David Howells5cd9c582008-08-14 11:37:28 +01001167 * @child contains the task_struct structure for the target process.
Stephen Smalley006ebb42008-05-19 08:32:49 -04001168 * @mode contains the PTRACE_MODE flags indicating the form of access.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169 * Return 0 if permission is granted.
David Howells5cd9c582008-08-14 11:37:28 +01001170 * @ptrace_traceme:
1171 * Check that the @parent process has sufficient permission to trace the
1172 * current process before allowing the current process to present itself
1173 * to the @parent process for tracing.
1174 * The parent process will still have to undergo the ptrace_may_access
1175 * checks before it is allowed to trace this one.
1176 * @parent contains the task_struct structure for debugger process.
1177 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178 * @capget:
1179 * Get the @effective, @inheritable, and @permitted capability sets for
1180 * the @target process. The hook may also perform permission checking to
1181 * determine if the current process is allowed to see the capability sets
1182 * of the @target process.
1183 * @target contains the task_struct structure for target process.
1184 * @effective contains the effective capability set.
1185 * @inheritable contains the inheritable capability set.
1186 * @permitted contains the permitted capability set.
1187 * Return 0 if the capability sets were successfully obtained.
1188 * @capset_check:
1189 * Check permission before setting the @effective, @inheritable, and
1190 * @permitted capability sets for the @target process.
1191 * Caveat: @target is also set to current if a set of processes is
1192 * specified (i.e. all processes other than current and init or a
1193 * particular process group). Hence, the capset_set hook may need to
1194 * revalidate permission to the actual target process.
1195 * @target contains the task_struct structure for target process.
1196 * @effective contains the effective capability set.
1197 * @inheritable contains the inheritable capability set.
1198 * @permitted contains the permitted capability set.
1199 * Return 0 if permission is granted.
1200 * @capset_set:
1201 * Set the @effective, @inheritable, and @permitted capability sets for
1202 * the @target process. Since capset_check cannot always check permission
1203 * to the real @target process, this hook may also perform permission
1204 * checking to determine if the current process is allowed to set the
1205 * capability sets of the @target process. However, this hook has no way
1206 * of returning an error due to the structure of the sys_capset code.
1207 * @target contains the task_struct structure for target process.
1208 * @effective contains the effective capability set.
1209 * @inheritable contains the inheritable capability set.
1210 * @permitted contains the permitted capability set.
Chris Wright12b59892006-03-25 03:07:41 -08001211 * @capable:
1212 * Check whether the @tsk process has the @cap capability.
1213 * @tsk contains the task_struct for the process.
1214 * @cap contains the capability <include/linux/capability.h>.
1215 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216 * @acct:
1217 * Check permission before enabling or disabling process accounting. If
1218 * accounting is being enabled, then @file refers to the open file used to
1219 * store accounting records. If accounting is being disabled, then @file
1220 * is NULL.
1221 * @file contains the file structure for the accounting file (may be NULL).
1222 * Return 0 if permission is granted.
1223 * @sysctl:
1224 * Check permission before accessing the @table sysctl variable in the
1225 * manner specified by @op.
1226 * @table contains the ctl_table structure for the sysctl variable.
1227 * @op contains the operation (001 = search, 002 = write, 004 = read).
1228 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 * @syslog:
1230 * Check permission before accessing the kernel message ring or changing
1231 * logging to the console.
Eric Paris7b41b172008-04-23 14:10:25 -04001232 * See the syslog(2) manual page for an explanation of the @type values.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001233 * @type contains the type of action.
1234 * Return 0 if permission is granted.
1235 * @settime:
1236 * Check permission to change the system time.
1237 * struct timespec and timezone are defined in include/linux/time.h
1238 * @ts contains new time
1239 * @tz contains new timezone
1240 * Return 0 if permission is granted.
1241 * @vm_enough_memory:
1242 * Check permissions for allocating a new virtual mapping.
Alan Cox34b4e4a2007-08-22 14:01:28 -07001243 * @mm contains the mm struct it is being added to.
Eric Paris7b41b172008-04-23 14:10:25 -04001244 * @pages contains the number of pages.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245 * Return 0 if permission is granted.
1246 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001247 * @secid_to_secctx:
1248 * Convert secid to security context.
1249 * @secid contains the security ID.
1250 * @secdata contains the pointer that stores the converted security context.
David Howells63cb3442008-01-15 23:47:35 +00001251 * @secctx_to_secid:
Eric Paris7b41b172008-04-23 14:10:25 -04001252 * Convert security context to secid.
1253 * @secid contains the pointer to the generated security ID.
1254 * @secdata contains the security context.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001255 *
1256 * @release_secctx:
1257 * Release the security context.
1258 * @secdata contains the security context.
1259 * @seclen contains the length of the security context.
1260 *
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001261 * Security hooks for Audit
1262 *
1263 * @audit_rule_init:
1264 * Allocate and initialize an LSM audit rule structure.
1265 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1266 * @op contains the operator the rule uses.
1267 * @rulestr contains the context where the rule will be applied to.
1268 * @lsmrule contains a pointer to receive the result.
1269 * Return 0 if @lsmrule has been successfully set,
1270 * -EINVAL in case of an invalid rule.
1271 *
1272 * @audit_rule_known:
1273 * Specifies whether given @rule contains any fields related to current LSM.
1274 * @rule contains the audit rule of interest.
1275 * Return 1 in case of relation found, 0 otherwise.
1276 *
1277 * @audit_rule_match:
1278 * Determine if given @secid matches a rule previously approved
1279 * by @audit_rule_known.
1280 * @secid contains the security id in question.
1281 * @field contains the field which relates to current LSM.
1282 * @op contains the operator that will be used for matching.
1283 * @rule points to the audit rule that will be checked against.
1284 * @actx points to the audit context associated with the check.
1285 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1286 *
1287 * @audit_rule_free:
1288 * Deallocate the LSM audit rule structure previously allocated by
1289 * audit_rule_init.
1290 * @rule contains the allocated rule
1291 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292 * This is the main security structure.
1293 */
1294struct security_operations {
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001295 char name[SECURITY_NAME_MAX + 1];
1296
David Howells5cd9c582008-08-14 11:37:28 +01001297 int (*ptrace_may_access) (struct task_struct *child, unsigned int mode);
1298 int (*ptrace_traceme) (struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -04001299 int (*capget) (struct task_struct *target,
1300 kernel_cap_t *effective,
1301 kernel_cap_t *inheritable, kernel_cap_t *permitted);
1302 int (*capset_check) (struct task_struct *target,
1303 kernel_cap_t *effective,
1304 kernel_cap_t *inheritable,
1305 kernel_cap_t *permitted);
1306 void (*capset_set) (struct task_struct *target,
1307 kernel_cap_t *effective,
1308 kernel_cap_t *inheritable,
1309 kernel_cap_t *permitted);
1310 int (*capable) (struct task_struct *tsk, int cap);
1311 int (*acct) (struct file *file);
1312 int (*sysctl) (struct ctl_table *table, int op);
1313 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1314 int (*quota_on) (struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315 int (*syslog) (int type);
1316 int (*settime) (struct timespec *ts, struct timezone *tz);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001317 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318
Eric Paris7b41b172008-04-23 14:10:25 -04001319 int (*bprm_alloc_security) (struct linux_binprm *bprm);
1320 void (*bprm_free_security) (struct linux_binprm *bprm);
1321 void (*bprm_apply_creds) (struct linux_binprm *bprm, int unsafe);
1322 void (*bprm_post_apply_creds) (struct linux_binprm *bprm);
1323 int (*bprm_set_security) (struct linux_binprm *bprm);
1324 int (*bprm_check_security) (struct linux_binprm *bprm);
1325 int (*bprm_secureexec) (struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326
Eric Paris7b41b172008-04-23 14:10:25 -04001327 int (*sb_alloc_security) (struct super_block *sb);
1328 void (*sb_free_security) (struct super_block *sb);
1329 int (*sb_copy_data) (char *orig, char *copy);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330 int (*sb_kern_mount) (struct super_block *sb, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001331 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
David Howells726c3342006-06-23 02:02:58 -07001332 int (*sb_statfs) (struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001333 int (*sb_mount) (char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 char *type, unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001335 int (*sb_check_sb) (struct vfsmount *mnt, struct path *path);
1336 int (*sb_umount) (struct vfsmount *mnt, int flags);
1337 void (*sb_umount_close) (struct vfsmount *mnt);
1338 void (*sb_umount_busy) (struct vfsmount *mnt);
1339 void (*sb_post_remount) (struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340 unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001341 void (*sb_post_addmount) (struct vfsmount *mnt,
Al Virob5266eb2008-03-22 17:48:24 -04001342 struct path *mountpoint);
1343 int (*sb_pivotroot) (struct path *old_path,
1344 struct path *new_path);
1345 void (*sb_post_pivotroot) (struct path *old_path,
1346 struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001347 int (*sb_set_mnt_opts) (struct super_block *sb,
1348 struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001349 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1350 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001351 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352
Eric Paris7b41b172008-04-23 14:10:25 -04001353 int (*inode_alloc_security) (struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001355 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1356 char **name, void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357 int (*inode_create) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001358 struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359 int (*inode_link) (struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001360 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1362 int (*inode_symlink) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001363 struct dentry *dentry, const char *old_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1366 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001367 int mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001369 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370 int (*inode_readlink) (struct dentry *dentry);
1371 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001372 int (*inode_permission) (struct inode *inode, int mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1374 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001375 void (*inode_delete) (struct inode *inode);
David Howells8f0cfa52008-04-29 00:59:41 -07001376 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1377 const void *value, size_t size, int flags);
1378 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1379 const void *value, size_t size, int flags);
1380 int (*inode_getxattr) (struct dentry *dentry, const char *name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 int (*inode_listxattr) (struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001382 int (*inode_removexattr) (struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001383 int (*inode_need_killpriv) (struct dentry *dentry);
1384 int (*inode_killpriv) (struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001385 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1386 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1387 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1388 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389
Eric Paris7b41b172008-04-23 14:10:25 -04001390 int (*file_permission) (struct file *file, int mask);
1391 int (*file_alloc_security) (struct file *file);
1392 void (*file_free_security) (struct file *file);
1393 int (*file_ioctl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001395 int (*file_mmap) (struct file *file,
Eric Parised032182007-06-28 15:55:21 -04001396 unsigned long reqprot, unsigned long prot,
1397 unsigned long flags, unsigned long addr,
1398 unsigned long addr_only);
Eric Paris7b41b172008-04-23 14:10:25 -04001399 int (*file_mprotect) (struct vm_area_struct *vma,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400 unsigned long reqprot,
1401 unsigned long prot);
Eric Paris7b41b172008-04-23 14:10:25 -04001402 int (*file_lock) (struct file *file, unsigned int cmd);
1403 int (*file_fcntl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001405 int (*file_set_fowner) (struct file *file);
1406 int (*file_send_sigiotask) (struct task_struct *tsk,
1407 struct fown_struct *fown, int sig);
1408 int (*file_receive) (struct file *file);
1409 int (*dentry_open) (struct file *file);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410
1411 int (*task_create) (unsigned long clone_flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001412 int (*task_alloc_security) (struct task_struct *p);
1413 void (*task_free_security) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1415 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1416 uid_t old_euid, uid_t old_suid, int flags);
1417 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001418 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1419 int (*task_getpgid) (struct task_struct *p);
1420 int (*task_getsid) (struct task_struct *p);
1421 void (*task_getsecid) (struct task_struct *p, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422 int (*task_setgroups) (struct group_info *group_info);
Eric Paris7b41b172008-04-23 14:10:25 -04001423 int (*task_setnice) (struct task_struct *p, int nice);
1424 int (*task_setioprio) (struct task_struct *p, int ioprio);
1425 int (*task_getioprio) (struct task_struct *p);
1426 int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim);
1427 int (*task_setscheduler) (struct task_struct *p, int policy,
1428 struct sched_param *lp);
1429 int (*task_getscheduler) (struct task_struct *p);
1430 int (*task_movememory) (struct task_struct *p);
1431 int (*task_kill) (struct task_struct *p,
1432 struct siginfo *info, int sig, u32 secid);
1433 int (*task_wait) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434 int (*task_prctl) (int option, unsigned long arg2,
1435 unsigned long arg3, unsigned long arg4,
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -07001436 unsigned long arg5, long *rc_p);
Eric Paris7b41b172008-04-23 14:10:25 -04001437 void (*task_reparent_to_init) (struct task_struct *p);
1438 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439
Eric Paris7b41b172008-04-23 14:10:25 -04001440 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001441 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001442
Eric Paris7b41b172008-04-23 14:10:25 -04001443 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1444 void (*msg_msg_free_security) (struct msg_msg *msg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445
Eric Paris7b41b172008-04-23 14:10:25 -04001446 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1447 void (*msg_queue_free_security) (struct msg_queue *msq);
1448 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1449 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1450 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1451 struct msg_msg *msg, int msqflg);
1452 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1453 struct msg_msg *msg,
1454 struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455 long type, int mode);
1456
Eric Paris7b41b172008-04-23 14:10:25 -04001457 int (*shm_alloc_security) (struct shmid_kernel *shp);
1458 void (*shm_free_security) (struct shmid_kernel *shp);
1459 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1460 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1461 int (*shm_shmat) (struct shmid_kernel *shp,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462 char __user *shmaddr, int shmflg);
1463
Eric Paris7b41b172008-04-23 14:10:25 -04001464 int (*sem_alloc_security) (struct sem_array *sma);
1465 void (*sem_free_security) (struct sem_array *sma);
1466 int (*sem_associate) (struct sem_array *sma, int semflg);
1467 int (*sem_semctl) (struct sem_array *sma, int cmd);
1468 int (*sem_semop) (struct sem_array *sma,
1469 struct sembuf *sops, unsigned nsops, int alter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470
Eric Paris7b41b172008-04-23 14:10:25 -04001471 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1472 int (*netlink_recv) (struct sk_buff *skb, int cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1475
Eric Paris7b41b172008-04-23 14:10:25 -04001476 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1477 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1478 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001479 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001480 void (*release_secctx) (char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481
1482#ifdef CONFIG_SECURITY_NETWORK
Eric Paris7b41b172008-04-23 14:10:25 -04001483 int (*unix_stream_connect) (struct socket *sock,
1484 struct socket *other, struct sock *newsk);
1485 int (*unix_may_send) (struct socket *sock, struct socket *other);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486
1487 int (*socket_create) (int family, int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001488 int (*socket_post_create) (struct socket *sock, int family,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001489 int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001490 int (*socket_bind) (struct socket *sock,
1491 struct sockaddr *address, int addrlen);
1492 int (*socket_connect) (struct socket *sock,
1493 struct sockaddr *address, int addrlen);
1494 int (*socket_listen) (struct socket *sock, int backlog);
1495 int (*socket_accept) (struct socket *sock, struct socket *newsock);
1496 void (*socket_post_accept) (struct socket *sock,
1497 struct socket *newsock);
1498 int (*socket_sendmsg) (struct socket *sock,
1499 struct msghdr *msg, int size);
1500 int (*socket_recvmsg) (struct socket *sock,
1501 struct msghdr *msg, int size, int flags);
1502 int (*socket_getsockname) (struct socket *sock);
1503 int (*socket_getpeername) (struct socket *sock);
1504 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1505 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1506 int (*socket_shutdown) (struct socket *sock, int how);
1507 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001508 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001509 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001510 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001512 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001513 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001514 void (*sock_graft) (struct sock *sk, struct socket *parent);
1515 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1516 struct request_sock *req);
1517 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1518 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1519 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001521
Trent Jaegerdf718372005-12-13 23:12:27 -08001522#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moore03e1ad72008-04-12 19:07:52 -07001523 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001524 struct xfrm_user_sec_ctx *sec_ctx);
Paul Moore03e1ad72008-04-12 19:07:52 -07001525 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1526 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1527 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001528 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001529 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001530 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001531 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001532 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Eric Paris7b41b172008-04-23 14:10:25 -04001533 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1534 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1535 struct xfrm_policy *xp,
1536 struct flowi *fl);
1537 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001538#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1539
David Howells29db9192005-10-30 15:02:44 -08001540 /* key management security hooks */
1541#ifdef CONFIG_KEYS
Eric Paris7b41b172008-04-23 14:10:25 -04001542 int (*key_alloc) (struct key *key, struct task_struct *tsk, unsigned long flags);
1543 void (*key_free) (struct key *key);
1544 int (*key_permission) (key_ref_t key_ref,
1545 struct task_struct *context,
1546 key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07001547 int (*key_getsecurity)(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08001548#endif /* CONFIG_KEYS */
1549
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001550#ifdef CONFIG_AUDIT
Eric Paris7b41b172008-04-23 14:10:25 -04001551 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1552 int (*audit_rule_known) (struct audit_krule *krule);
1553 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1554 struct audit_context *actx);
1555 void (*audit_rule_free) (void *lsmrule);
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001556#endif /* CONFIG_AUDIT */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557};
1558
Linus Torvalds1da177e2005-04-16 15:20:36 -07001559/* prototypes */
Eric Paris7b41b172008-04-23 14:10:25 -04001560extern int security_init(void);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001561extern int security_module_enable(struct security_operations *ops);
Eric Paris7b41b172008-04-23 14:10:25 -04001562extern int register_security(struct security_operations *ops);
Greg KHb67dbf92005-07-07 14:37:53 -07001563extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
1564 struct dentry *parent, void *data,
Arjan van de Ven54047322007-02-12 00:55:28 -08001565 const struct file_operations *fops);
Greg KHb67dbf92005-07-07 14:37:53 -07001566extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1567extern void securityfs_remove(struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001568
James Morris20510f22007-10-16 23:31:32 -07001569/* Security operations */
David Howells5cd9c582008-08-14 11:37:28 +01001570int security_ptrace_may_access(struct task_struct *child, unsigned int mode);
1571int security_ptrace_traceme(struct task_struct *parent);
James Morris20510f22007-10-16 23:31:32 -07001572int security_capget(struct task_struct *target,
Eric Paris7b41b172008-04-23 14:10:25 -04001573 kernel_cap_t *effective,
1574 kernel_cap_t *inheritable,
1575 kernel_cap_t *permitted);
James Morris20510f22007-10-16 23:31:32 -07001576int security_capset_check(struct task_struct *target,
James Morris20510f22007-10-16 23:31:32 -07001577 kernel_cap_t *effective,
1578 kernel_cap_t *inheritable,
1579 kernel_cap_t *permitted);
Eric Paris7b41b172008-04-23 14:10:25 -04001580void security_capset_set(struct task_struct *target,
1581 kernel_cap_t *effective,
1582 kernel_cap_t *inheritable,
1583 kernel_cap_t *permitted);
James Morris20510f22007-10-16 23:31:32 -07001584int security_capable(struct task_struct *tsk, int cap);
1585int security_acct(struct file *file);
1586int security_sysctl(struct ctl_table *table, int op);
1587int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1588int security_quota_on(struct dentry *dentry);
1589int security_syslog(int type);
1590int security_settime(struct timespec *ts, struct timezone *tz);
1591int security_vm_enough_memory(long pages);
1592int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
1593int security_bprm_alloc(struct linux_binprm *bprm);
1594void security_bprm_free(struct linux_binprm *bprm);
1595void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
1596void security_bprm_post_apply_creds(struct linux_binprm *bprm);
1597int security_bprm_set(struct linux_binprm *bprm);
1598int security_bprm_check(struct linux_binprm *bprm);
1599int security_bprm_secureexec(struct linux_binprm *bprm);
1600int security_sb_alloc(struct super_block *sb);
1601void security_sb_free(struct super_block *sb);
Eric Parise0007522008-03-05 10:31:54 -05001602int security_sb_copy_data(char *orig, char *copy);
James Morris20510f22007-10-16 23:31:32 -07001603int security_sb_kern_mount(struct super_block *sb, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001604int security_sb_show_options(struct seq_file *m, struct super_block *sb);
James Morris20510f22007-10-16 23:31:32 -07001605int security_sb_statfs(struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001606int security_sb_mount(char *dev_name, struct path *path,
Eric Paris7b41b172008-04-23 14:10:25 -04001607 char *type, unsigned long flags, void *data);
Al Virob5266eb2008-03-22 17:48:24 -04001608int security_sb_check_sb(struct vfsmount *mnt, struct path *path);
James Morris20510f22007-10-16 23:31:32 -07001609int security_sb_umount(struct vfsmount *mnt, int flags);
1610void security_sb_umount_close(struct vfsmount *mnt);
1611void security_sb_umount_busy(struct vfsmount *mnt);
1612void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data);
Al Virob5266eb2008-03-22 17:48:24 -04001613void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
1614int security_sb_pivotroot(struct path *old_path, struct path *new_path);
1615void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001616int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001617void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1618 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001619int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001620
James Morris20510f22007-10-16 23:31:32 -07001621int security_inode_alloc(struct inode *inode);
1622void security_inode_free(struct inode *inode);
1623int security_inode_init_security(struct inode *inode, struct inode *dir,
1624 char **name, void **value, size_t *len);
1625int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1626int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1627 struct dentry *new_dentry);
1628int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1629int security_inode_symlink(struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001630 const char *old_name);
James Morris20510f22007-10-16 23:31:32 -07001631int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1632int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1633int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1634int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001635 struct inode *new_dir, struct dentry *new_dentry);
James Morris20510f22007-10-16 23:31:32 -07001636int security_inode_readlink(struct dentry *dentry);
1637int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001638int security_inode_permission(struct inode *inode, int mask);
James Morris20510f22007-10-16 23:31:32 -07001639int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1640int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
1641void security_inode_delete(struct inode *inode);
David Howells8f0cfa52008-04-29 00:59:41 -07001642int security_inode_setxattr(struct dentry *dentry, const char *name,
1643 const void *value, size_t size, int flags);
1644void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1645 const void *value, size_t size, int flags);
1646int security_inode_getxattr(struct dentry *dentry, const char *name);
James Morris20510f22007-10-16 23:31:32 -07001647int security_inode_listxattr(struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001648int security_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001649int security_inode_need_killpriv(struct dentry *dentry);
1650int security_inode_killpriv(struct dentry *dentry);
David P. Quigley42492592008-02-04 22:29:39 -08001651int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
James Morris20510f22007-10-16 23:31:32 -07001652int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1653int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001654void security_inode_getsecid(const struct inode *inode, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001655int security_file_permission(struct file *file, int mask);
1656int security_file_alloc(struct file *file);
1657void security_file_free(struct file *file);
1658int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1659int security_file_mmap(struct file *file, unsigned long reqprot,
1660 unsigned long prot, unsigned long flags,
1661 unsigned long addr, unsigned long addr_only);
1662int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
Eric Paris7b41b172008-04-23 14:10:25 -04001663 unsigned long prot);
James Morris20510f22007-10-16 23:31:32 -07001664int security_file_lock(struct file *file, unsigned int cmd);
1665int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1666int security_file_set_fowner(struct file *file);
1667int security_file_send_sigiotask(struct task_struct *tsk,
Eric Paris7b41b172008-04-23 14:10:25 -04001668 struct fown_struct *fown, int sig);
James Morris20510f22007-10-16 23:31:32 -07001669int security_file_receive(struct file *file);
1670int security_dentry_open(struct file *file);
1671int security_task_create(unsigned long clone_flags);
1672int security_task_alloc(struct task_struct *p);
1673void security_task_free(struct task_struct *p);
1674int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
1675int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
Eric Paris7b41b172008-04-23 14:10:25 -04001676 uid_t old_suid, int flags);
James Morris20510f22007-10-16 23:31:32 -07001677int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags);
1678int security_task_setpgid(struct task_struct *p, pid_t pgid);
1679int security_task_getpgid(struct task_struct *p);
1680int security_task_getsid(struct task_struct *p);
1681void security_task_getsecid(struct task_struct *p, u32 *secid);
1682int security_task_setgroups(struct group_info *group_info);
1683int security_task_setnice(struct task_struct *p, int nice);
1684int security_task_setioprio(struct task_struct *p, int ioprio);
1685int security_task_getioprio(struct task_struct *p);
1686int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim);
1687int security_task_setscheduler(struct task_struct *p,
1688 int policy, struct sched_param *lp);
1689int security_task_getscheduler(struct task_struct *p);
1690int security_task_movememory(struct task_struct *p);
1691int security_task_kill(struct task_struct *p, struct siginfo *info,
1692 int sig, u32 secid);
1693int security_task_wait(struct task_struct *p);
1694int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -07001695 unsigned long arg4, unsigned long arg5, long *rc_p);
James Morris20510f22007-10-16 23:31:32 -07001696void security_task_reparent_to_init(struct task_struct *p);
1697void security_task_to_inode(struct task_struct *p, struct inode *inode);
1698int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001699void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001700int security_msg_msg_alloc(struct msg_msg *msg);
1701void security_msg_msg_free(struct msg_msg *msg);
1702int security_msg_queue_alloc(struct msg_queue *msq);
1703void security_msg_queue_free(struct msg_queue *msq);
1704int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1705int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1706int security_msg_queue_msgsnd(struct msg_queue *msq,
Eric Paris7b41b172008-04-23 14:10:25 -04001707 struct msg_msg *msg, int msqflg);
James Morris20510f22007-10-16 23:31:32 -07001708int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
Eric Paris7b41b172008-04-23 14:10:25 -04001709 struct task_struct *target, long type, int mode);
James Morris20510f22007-10-16 23:31:32 -07001710int security_shm_alloc(struct shmid_kernel *shp);
1711void security_shm_free(struct shmid_kernel *shp);
1712int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1713int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1714int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1715int security_sem_alloc(struct sem_array *sma);
1716void security_sem_free(struct sem_array *sma);
1717int security_sem_associate(struct sem_array *sma, int semflg);
1718int security_sem_semctl(struct sem_array *sma, int cmd);
1719int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1720 unsigned nsops, int alter);
Eric Paris7b41b172008-04-23 14:10:25 -04001721void security_d_instantiate(struct dentry *dentry, struct inode *inode);
James Morris20510f22007-10-16 23:31:32 -07001722int security_getprocattr(struct task_struct *p, char *name, char **value);
1723int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1724int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1725int security_netlink_recv(struct sk_buff *skb, int cap);
1726int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001727int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001728void security_release_secctx(char *secdata, u32 seclen);
1729
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730#else /* CONFIG_SECURITY */
Eric Parise0007522008-03-05 10:31:54 -05001731struct security_mnt_opts {
1732};
1733
1734static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1735{
1736}
1737
1738static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1739{
1740}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741
1742/*
1743 * This is the default capabilities functionality. Most of these functions
1744 * are just stubbed out, but a few must call the proper capable code.
1745 */
1746
1747static inline int security_init(void)
1748{
1749 return 0;
1750}
1751
David Howells5cd9c582008-08-14 11:37:28 +01001752static inline int security_ptrace_may_access(struct task_struct *child,
1753 unsigned int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001754{
David Howells5cd9c582008-08-14 11:37:28 +01001755 return cap_ptrace_may_access(child, mode);
1756}
1757
Alexander Beregalov5e186b52008-08-17 05:34:20 +04001758static inline int security_ptrace_traceme(struct task_struct *parent)
David Howells5cd9c582008-08-14 11:37:28 +01001759{
1760 return cap_ptrace_traceme(parent);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001761}
1762
Eric Paris7b41b172008-04-23 14:10:25 -04001763static inline int security_capget(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001764 kernel_cap_t *effective,
1765 kernel_cap_t *inheritable,
1766 kernel_cap_t *permitted)
1767{
Eric Paris7b41b172008-04-23 14:10:25 -04001768 return cap_capget(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769}
1770
Eric Paris7b41b172008-04-23 14:10:25 -04001771static inline int security_capset_check(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001772 kernel_cap_t *effective,
1773 kernel_cap_t *inheritable,
1774 kernel_cap_t *permitted)
1775{
Eric Paris7b41b172008-04-23 14:10:25 -04001776 return cap_capset_check(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777}
1778
Eric Paris7b41b172008-04-23 14:10:25 -04001779static inline void security_capset_set(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780 kernel_cap_t *effective,
1781 kernel_cap_t *inheritable,
1782 kernel_cap_t *permitted)
1783{
Eric Paris7b41b172008-04-23 14:10:25 -04001784 cap_capset_set(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001785}
1786
Chris Wright12b59892006-03-25 03:07:41 -08001787static inline int security_capable(struct task_struct *tsk, int cap)
1788{
1789 return cap_capable(tsk, cap);
1790}
1791
Eric Paris7b41b172008-04-23 14:10:25 -04001792static inline int security_acct(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793{
1794 return 0;
1795}
1796
1797static inline int security_sysctl(struct ctl_table *table, int op)
1798{
1799 return 0;
1800}
1801
Eric Paris7b41b172008-04-23 14:10:25 -04001802static inline int security_quotactl(int cmds, int type, int id,
1803 struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001804{
1805 return 0;
1806}
1807
Eric Paris7b41b172008-04-23 14:10:25 -04001808static inline int security_quota_on(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001809{
1810 return 0;
1811}
1812
1813static inline int security_syslog(int type)
1814{
1815 return cap_syslog(type);
1816}
1817
1818static inline int security_settime(struct timespec *ts, struct timezone *tz)
1819{
1820 return cap_settime(ts, tz);
1821}
1822
1823static inline int security_vm_enough_memory(long pages)
1824{
Alan Cox34b4e4a2007-08-22 14:01:28 -07001825 return cap_vm_enough_memory(current->mm, pages);
1826}
1827
1828static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1829{
1830 return cap_vm_enough_memory(mm, pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831}
1832
Eric Paris7b41b172008-04-23 14:10:25 -04001833static inline int security_bprm_alloc(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834{
1835 return 0;
1836}
1837
Eric Paris7b41b172008-04-23 14:10:25 -04001838static inline void security_bprm_free(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001839{ }
1840
Eric Paris7b41b172008-04-23 14:10:25 -04001841static inline void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
1842{
1843 cap_bprm_apply_creds(bprm, unsafe);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844}
1845
Eric Paris7b41b172008-04-23 14:10:25 -04001846static inline void security_bprm_post_apply_creds(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847{
1848 return;
1849}
1850
Eric Paris7b41b172008-04-23 14:10:25 -04001851static inline int security_bprm_set(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852{
Eric Paris7b41b172008-04-23 14:10:25 -04001853 return cap_bprm_set_security(bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854}
1855
Eric Paris7b41b172008-04-23 14:10:25 -04001856static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857{
1858 return 0;
1859}
1860
Eric Paris7b41b172008-04-23 14:10:25 -04001861static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862{
1863 return cap_bprm_secureexec(bprm);
1864}
1865
Eric Paris7b41b172008-04-23 14:10:25 -04001866static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001867{
1868 return 0;
1869}
1870
Eric Paris7b41b172008-04-23 14:10:25 -04001871static inline void security_sb_free(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001872{ }
1873
Eric Paris7b41b172008-04-23 14:10:25 -04001874static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001875{
1876 return 0;
1877}
1878
Eric Paris7b41b172008-04-23 14:10:25 -04001879static inline int security_sb_kern_mount(struct super_block *sb, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001880{
1881 return 0;
1882}
1883
Eric Paris2069f452008-07-04 09:47:13 +10001884static inline int security_sb_show_options(struct seq_file *m,
1885 struct super_block *sb)
1886{
1887 return 0;
1888}
1889
Eric Paris7b41b172008-04-23 14:10:25 -04001890static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891{
1892 return 0;
1893}
1894
Eric Paris7b41b172008-04-23 14:10:25 -04001895static inline int security_sb_mount(char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896 char *type, unsigned long flags,
1897 void *data)
1898{
1899 return 0;
1900}
1901
Eric Paris7b41b172008-04-23 14:10:25 -04001902static inline int security_sb_check_sb(struct vfsmount *mnt,
1903 struct path *path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001904{
1905 return 0;
1906}
1907
Eric Paris7b41b172008-04-23 14:10:25 -04001908static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909{
1910 return 0;
1911}
1912
Eric Paris7b41b172008-04-23 14:10:25 -04001913static inline void security_sb_umount_close(struct vfsmount *mnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914{ }
1915
Eric Paris7b41b172008-04-23 14:10:25 -04001916static inline void security_sb_umount_busy(struct vfsmount *mnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001917{ }
1918
Eric Paris7b41b172008-04-23 14:10:25 -04001919static inline void security_sb_post_remount(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920 unsigned long flags, void *data)
1921{ }
1922
Eric Paris7b41b172008-04-23 14:10:25 -04001923static inline void security_sb_post_addmount(struct vfsmount *mnt,
1924 struct path *mountpoint)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001925{ }
1926
Eric Paris7b41b172008-04-23 14:10:25 -04001927static inline int security_sb_pivotroot(struct path *old_path,
1928 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001929{
1930 return 0;
1931}
1932
Eric Paris7b41b172008-04-23 14:10:25 -04001933static inline void security_sb_post_pivotroot(struct path *old_path,
1934 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001935{ }
Eric Parise0007522008-03-05 10:31:54 -05001936
1937static inline int security_sb_set_mnt_opts(struct super_block *sb,
1938 struct security_mnt_opts *opts)
1939{
1940 return 0;
1941}
1942
1943static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1944 struct super_block *newsb)
1945{ }
1946
1947static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
1948{
1949 return 0;
1950}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001951
Eric Paris7b41b172008-04-23 14:10:25 -04001952static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953{
1954 return 0;
1955}
1956
Eric Paris7b41b172008-04-23 14:10:25 -04001957static inline void security_inode_free(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001958{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001959
Eric Paris7b41b172008-04-23 14:10:25 -04001960static inline int security_inode_init_security(struct inode *inode,
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001961 struct inode *dir,
1962 char **name,
1963 void **value,
1964 size_t *len)
1965{
1966 return -EOPNOTSUPP;
1967}
Eric Paris7b41b172008-04-23 14:10:25 -04001968
1969static inline int security_inode_create(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001970 struct dentry *dentry,
1971 int mode)
1972{
1973 return 0;
1974}
1975
Eric Paris7b41b172008-04-23 14:10:25 -04001976static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001977 struct inode *dir,
1978 struct dentry *new_dentry)
1979{
1980 return 0;
1981}
1982
Eric Paris7b41b172008-04-23 14:10:25 -04001983static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001984 struct dentry *dentry)
1985{
1986 return 0;
1987}
1988
Eric Paris7b41b172008-04-23 14:10:25 -04001989static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001990 struct dentry *dentry,
1991 const char *old_name)
1992{
1993 return 0;
1994}
1995
Eric Paris7b41b172008-04-23 14:10:25 -04001996static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001997 struct dentry *dentry,
1998 int mode)
1999{
2000 return 0;
2001}
2002
Eric Paris7b41b172008-04-23 14:10:25 -04002003static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004 struct dentry *dentry)
2005{
2006 return 0;
2007}
2008
Eric Paris7b41b172008-04-23 14:10:25 -04002009static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002010 struct dentry *dentry,
2011 int mode, dev_t dev)
2012{
2013 return 0;
2014}
2015
Eric Paris7b41b172008-04-23 14:10:25 -04002016static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002017 struct dentry *old_dentry,
2018 struct inode *new_dir,
2019 struct dentry *new_dentry)
2020{
2021 return 0;
2022}
2023
Eric Paris7b41b172008-04-23 14:10:25 -04002024static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025{
2026 return 0;
2027}
2028
Eric Paris7b41b172008-04-23 14:10:25 -04002029static inline int security_inode_follow_link(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030 struct nameidata *nd)
2031{
2032 return 0;
2033}
2034
Al Virob77b0642008-07-17 09:37:02 -04002035static inline int security_inode_permission(struct inode *inode, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036{
2037 return 0;
2038}
2039
Eric Paris7b41b172008-04-23 14:10:25 -04002040static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041 struct iattr *attr)
2042{
2043 return 0;
2044}
2045
Eric Paris7b41b172008-04-23 14:10:25 -04002046static inline int security_inode_getattr(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002047 struct dentry *dentry)
2048{
2049 return 0;
2050}
2051
Eric Paris7b41b172008-04-23 14:10:25 -04002052static inline void security_inode_delete(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002053{ }
2054
David Howells8f0cfa52008-04-29 00:59:41 -07002055static inline int security_inode_setxattr(struct dentry *dentry,
2056 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057{
2058 return cap_inode_setxattr(dentry, name, value, size, flags);
2059}
2060
David Howells8f0cfa52008-04-29 00:59:41 -07002061static inline void security_inode_post_setxattr(struct dentry *dentry,
2062 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002063{ }
2064
David Howells8f0cfa52008-04-29 00:59:41 -07002065static inline int security_inode_getxattr(struct dentry *dentry,
2066 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067{
2068 return 0;
2069}
2070
Eric Paris7b41b172008-04-23 14:10:25 -04002071static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072{
2073 return 0;
2074}
2075
David Howells8f0cfa52008-04-29 00:59:41 -07002076static inline int security_inode_removexattr(struct dentry *dentry,
2077 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078{
2079 return cap_inode_removexattr(dentry, name);
2080}
2081
Serge E. Hallynb5376772007-10-16 23:31:36 -07002082static inline int security_inode_need_killpriv(struct dentry *dentry)
2083{
2084 return cap_inode_need_killpriv(dentry);
2085}
2086
2087static inline int security_inode_killpriv(struct dentry *dentry)
2088{
2089 return cap_inode_killpriv(dentry);
2090}
2091
David P. Quigley42492592008-02-04 22:29:39 -08002092static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093{
2094 return -EOPNOTSUPP;
2095}
2096
2097static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2098{
2099 return -EOPNOTSUPP;
2100}
2101
2102static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2103{
2104 return 0;
2105}
2106
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002107static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2108{
2109 *secid = 0;
2110}
2111
Eric Paris7b41b172008-04-23 14:10:25 -04002112static inline int security_file_permission(struct file *file, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113{
2114 return 0;
2115}
2116
Eric Paris7b41b172008-04-23 14:10:25 -04002117static inline int security_file_alloc(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118{
2119 return 0;
2120}
2121
Eric Paris7b41b172008-04-23 14:10:25 -04002122static inline void security_file_free(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123{ }
2124
Eric Paris7b41b172008-04-23 14:10:25 -04002125static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2126 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127{
2128 return 0;
2129}
2130
Eric Paris7b41b172008-04-23 14:10:25 -04002131static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2132 unsigned long prot,
2133 unsigned long flags,
2134 unsigned long addr,
2135 unsigned long addr_only)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002136{
2137 return 0;
2138}
2139
Eric Paris7b41b172008-04-23 14:10:25 -04002140static inline int security_file_mprotect(struct vm_area_struct *vma,
2141 unsigned long reqprot,
2142 unsigned long prot)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143{
2144 return 0;
2145}
2146
Eric Paris7b41b172008-04-23 14:10:25 -04002147static inline int security_file_lock(struct file *file, unsigned int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002148{
2149 return 0;
2150}
2151
Eric Paris7b41b172008-04-23 14:10:25 -04002152static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2153 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154{
2155 return 0;
2156}
2157
Eric Paris7b41b172008-04-23 14:10:25 -04002158static inline int security_file_set_fowner(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159{
2160 return 0;
2161}
2162
Eric Paris7b41b172008-04-23 14:10:25 -04002163static inline int security_file_send_sigiotask(struct task_struct *tsk,
2164 struct fown_struct *fown,
2165 int sig)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166{
2167 return 0;
2168}
2169
Eric Paris7b41b172008-04-23 14:10:25 -04002170static inline int security_file_receive(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171{
2172 return 0;
2173}
2174
Eric Paris7b41b172008-04-23 14:10:25 -04002175static inline int security_dentry_open(struct file *file)
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +09002176{
2177 return 0;
2178}
2179
Eric Paris7b41b172008-04-23 14:10:25 -04002180static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181{
2182 return 0;
2183}
2184
Eric Paris7b41b172008-04-23 14:10:25 -04002185static inline int security_task_alloc(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002186{
2187 return 0;
2188}
2189
Eric Paris7b41b172008-04-23 14:10:25 -04002190static inline void security_task_free(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002191{ }
2192
Eric Paris7b41b172008-04-23 14:10:25 -04002193static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
2194 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002195{
2196 return 0;
2197}
2198
Eric Paris7b41b172008-04-23 14:10:25 -04002199static inline int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
2200 uid_t old_suid, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002201{
Eric Paris7b41b172008-04-23 14:10:25 -04002202 return cap_task_post_setuid(old_ruid, old_euid, old_suid, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203}
2204
Eric Paris7b41b172008-04-23 14:10:25 -04002205static inline int security_task_setgid(gid_t id0, gid_t id1, gid_t id2,
2206 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002207{
2208 return 0;
2209}
2210
Eric Paris7b41b172008-04-23 14:10:25 -04002211static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212{
2213 return 0;
2214}
2215
Eric Paris7b41b172008-04-23 14:10:25 -04002216static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002217{
2218 return 0;
2219}
2220
Eric Paris7b41b172008-04-23 14:10:25 -04002221static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222{
2223 return 0;
2224}
2225
Eric Paris7b41b172008-04-23 14:10:25 -04002226static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002227{
2228 *secid = 0;
2229}
David Quigleyf9008e42006-06-30 01:55:46 -07002230
Eric Paris7b41b172008-04-23 14:10:25 -04002231static inline int security_task_setgroups(struct group_info *group_info)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002232{
2233 return 0;
2234}
2235
Eric Paris7b41b172008-04-23 14:10:25 -04002236static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002238 return cap_task_setnice(p, nice);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239}
2240
Eric Paris7b41b172008-04-23 14:10:25 -04002241static inline int security_task_setioprio(struct task_struct *p, int ioprio)
James Morris03e68062006-06-23 02:03:58 -07002242{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002243 return cap_task_setioprio(p, ioprio);
James Morris03e68062006-06-23 02:03:58 -07002244}
2245
Eric Paris7b41b172008-04-23 14:10:25 -04002246static inline int security_task_getioprio(struct task_struct *p)
David Quigleya1836a42006-06-30 01:55:49 -07002247{
2248 return 0;
2249}
2250
Eric Paris7b41b172008-04-23 14:10:25 -04002251static inline int security_task_setrlimit(unsigned int resource,
2252 struct rlimit *new_rlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253{
2254 return 0;
2255}
2256
Eric Paris7b41b172008-04-23 14:10:25 -04002257static inline int security_task_setscheduler(struct task_struct *p,
2258 int policy,
2259 struct sched_param *lp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002260{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002261 return cap_task_setscheduler(p, policy, lp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002262}
2263
Eric Paris7b41b172008-04-23 14:10:25 -04002264static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265{
2266 return 0;
2267}
2268
Eric Paris7b41b172008-04-23 14:10:25 -04002269static inline int security_task_movememory(struct task_struct *p)
David Quigley35601542006-06-23 02:04:01 -07002270{
2271 return 0;
2272}
2273
Eric Paris7b41b172008-04-23 14:10:25 -04002274static inline int security_task_kill(struct task_struct *p,
2275 struct siginfo *info, int sig,
2276 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002277{
Serge Hallynaedb60a2008-02-29 15:14:57 +00002278 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279}
2280
Eric Paris7b41b172008-04-23 14:10:25 -04002281static inline int security_task_wait(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282{
2283 return 0;
2284}
2285
Eric Paris7b41b172008-04-23 14:10:25 -04002286static inline int security_task_prctl(int option, unsigned long arg2,
2287 unsigned long arg3,
2288 unsigned long arg4,
Linus Torvaldscfd299d2008-04-28 10:08:49 -07002289 unsigned long arg5, long *rc_p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290{
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -07002291 return cap_task_prctl(option, arg2, arg3, arg3, arg5, rc_p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002292}
2293
Eric Paris7b41b172008-04-23 14:10:25 -04002294static inline void security_task_reparent_to_init(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295{
Eric Paris7b41b172008-04-23 14:10:25 -04002296 cap_task_reparent_to_init(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002297}
2298
2299static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2300{ }
2301
Eric Paris7b41b172008-04-23 14:10:25 -04002302static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2303 short flag)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002304{
2305 return 0;
2306}
2307
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002308static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2309{
2310 *secid = 0;
2311}
2312
Eric Paris7b41b172008-04-23 14:10:25 -04002313static inline int security_msg_msg_alloc(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002314{
2315 return 0;
2316}
2317
Eric Paris7b41b172008-04-23 14:10:25 -04002318static inline void security_msg_msg_free(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002319{ }
2320
Eric Paris7b41b172008-04-23 14:10:25 -04002321static inline int security_msg_queue_alloc(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002322{
2323 return 0;
2324}
2325
Eric Paris7b41b172008-04-23 14:10:25 -04002326static inline void security_msg_queue_free(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327{ }
2328
Eric Paris7b41b172008-04-23 14:10:25 -04002329static inline int security_msg_queue_associate(struct msg_queue *msq,
2330 int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002331{
2332 return 0;
2333}
2334
Eric Paris7b41b172008-04-23 14:10:25 -04002335static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002336{
2337 return 0;
2338}
2339
Eric Paris7b41b172008-04-23 14:10:25 -04002340static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2341 struct msg_msg *msg, int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002342{
2343 return 0;
2344}
2345
Eric Paris7b41b172008-04-23 14:10:25 -04002346static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2347 struct msg_msg *msg,
2348 struct task_struct *target,
2349 long type, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002350{
2351 return 0;
2352}
2353
Eric Paris7b41b172008-04-23 14:10:25 -04002354static inline int security_shm_alloc(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002355{
2356 return 0;
2357}
2358
Eric Paris7b41b172008-04-23 14:10:25 -04002359static inline void security_shm_free(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002360{ }
2361
Eric Paris7b41b172008-04-23 14:10:25 -04002362static inline int security_shm_associate(struct shmid_kernel *shp,
2363 int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002364{
2365 return 0;
2366}
2367
Eric Paris7b41b172008-04-23 14:10:25 -04002368static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002369{
2370 return 0;
2371}
2372
Eric Paris7b41b172008-04-23 14:10:25 -04002373static inline int security_shm_shmat(struct shmid_kernel *shp,
2374 char __user *shmaddr, int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002375{
2376 return 0;
2377}
2378
Eric Paris7b41b172008-04-23 14:10:25 -04002379static inline int security_sem_alloc(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002380{
2381 return 0;
2382}
2383
Eric Paris7b41b172008-04-23 14:10:25 -04002384static inline void security_sem_free(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002385{ }
2386
Eric Paris7b41b172008-04-23 14:10:25 -04002387static inline int security_sem_associate(struct sem_array *sma, int semflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002388{
2389 return 0;
2390}
2391
Eric Paris7b41b172008-04-23 14:10:25 -04002392static inline int security_sem_semctl(struct sem_array *sma, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002393{
2394 return 0;
2395}
2396
Eric Paris7b41b172008-04-23 14:10:25 -04002397static inline int security_sem_semop(struct sem_array *sma,
2398 struct sembuf *sops, unsigned nsops,
2399 int alter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002400{
2401 return 0;
2402}
2403
Eric Paris7b41b172008-04-23 14:10:25 -04002404static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002405{ }
2406
Al Viro04ff9702007-03-12 16:17:58 +00002407static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002408{
2409 return -EINVAL;
2410}
2411
2412static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2413{
2414 return -EINVAL;
2415}
2416
Eric Paris7b41b172008-04-23 14:10:25 -04002417static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002418{
Eric Paris7b41b172008-04-23 14:10:25 -04002419 return cap_netlink_send(sk, skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002420}
2421
Eric Paris7b41b172008-04-23 14:10:25 -04002422static inline int security_netlink_recv(struct sk_buff *skb, int cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002423{
Eric Paris7b41b172008-04-23 14:10:25 -04002424 return cap_netlink_recv(skb, cap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002425}
2426
Randy Dunlaped5a9272006-02-01 03:05:00 -08002427static inline struct dentry *securityfs_create_dir(const char *name,
2428 struct dentry *parent)
2429{
2430 return ERR_PTR(-ENODEV);
2431}
2432
2433static inline struct dentry *securityfs_create_file(const char *name,
2434 mode_t mode,
2435 struct dentry *parent,
2436 void *data,
Jan Engelhardt1996a102008-01-23 00:02:58 +01002437 const struct file_operations *fops)
Randy Dunlaped5a9272006-02-01 03:05:00 -08002438{
2439 return ERR_PTR(-ENODEV);
2440}
2441
2442static inline void securityfs_remove(struct dentry *dentry)
2443{
2444}
2445
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002446static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2447{
2448 return -EOPNOTSUPP;
2449}
2450
David Howells7bf570d2008-04-29 20:52:51 +01002451static inline int security_secctx_to_secid(const char *secdata,
David Howells63cb3442008-01-15 23:47:35 +00002452 u32 seclen,
2453 u32 *secid)
2454{
2455 return -EOPNOTSUPP;
2456}
2457
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002458static inline void security_release_secctx(char *secdata, u32 seclen)
2459{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002460}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002461#endif /* CONFIG_SECURITY */
2462
2463#ifdef CONFIG_SECURITY_NETWORK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002464
James Morris20510f22007-10-16 23:31:32 -07002465int security_unix_stream_connect(struct socket *sock, struct socket *other,
2466 struct sock *newsk);
2467int security_unix_may_send(struct socket *sock, struct socket *other);
2468int security_socket_create(int family, int type, int protocol, int kern);
2469int security_socket_post_create(struct socket *sock, int family,
2470 int type, int protocol, int kern);
2471int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2472int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2473int security_socket_listen(struct socket *sock, int backlog);
2474int security_socket_accept(struct socket *sock, struct socket *newsock);
2475void security_socket_post_accept(struct socket *sock, struct socket *newsock);
2476int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2477int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2478 int size, int flags);
2479int security_socket_getsockname(struct socket *sock);
2480int security_socket_getpeername(struct socket *sock);
2481int security_socket_getsockopt(struct socket *sock, int level, int optname);
2482int security_socket_setsockopt(struct socket *sock, int level, int optname);
2483int security_socket_shutdown(struct socket *sock, int how);
2484int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2485int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2486 int __user *optlen, unsigned len);
2487int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2488int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2489void security_sk_free(struct sock *sk);
2490void security_sk_clone(const struct sock *sk, struct sock *newsk);
2491void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2492void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2493void security_sock_graft(struct sock*sk, struct socket *parent);
2494int security_inet_conn_request(struct sock *sk,
2495 struct sk_buff *skb, struct request_sock *req);
2496void security_inet_csk_clone(struct sock *newsk,
2497 const struct request_sock *req);
2498void security_inet_conn_established(struct sock *sk,
2499 struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002500
Linus Torvalds1da177e2005-04-16 15:20:36 -07002501#else /* CONFIG_SECURITY_NETWORK */
Eric Paris7b41b172008-04-23 14:10:25 -04002502static inline int security_unix_stream_connect(struct socket *sock,
2503 struct socket *other,
2504 struct sock *newsk)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002505{
2506 return 0;
2507}
2508
Eric Paris7b41b172008-04-23 14:10:25 -04002509static inline int security_unix_may_send(struct socket *sock,
2510 struct socket *other)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002511{
2512 return 0;
2513}
2514
Eric Paris7b41b172008-04-23 14:10:25 -04002515static inline int security_socket_create(int family, int type,
2516 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002517{
2518 return 0;
2519}
2520
Eric Paris7b41b172008-04-23 14:10:25 -04002521static inline int security_socket_post_create(struct socket *sock,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002522 int family,
2523 int type,
2524 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002525{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002526 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002527}
2528
Eric Paris7b41b172008-04-23 14:10:25 -04002529static inline int security_socket_bind(struct socket *sock,
2530 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002531 int addrlen)
2532{
2533 return 0;
2534}
2535
Eric Paris7b41b172008-04-23 14:10:25 -04002536static inline int security_socket_connect(struct socket *sock,
2537 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002538 int addrlen)
2539{
2540 return 0;
2541}
2542
Eric Paris7b41b172008-04-23 14:10:25 -04002543static inline int security_socket_listen(struct socket *sock, int backlog)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002544{
2545 return 0;
2546}
2547
Eric Paris7b41b172008-04-23 14:10:25 -04002548static inline int security_socket_accept(struct socket *sock,
2549 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002550{
2551 return 0;
2552}
2553
Eric Paris7b41b172008-04-23 14:10:25 -04002554static inline void security_socket_post_accept(struct socket *sock,
2555 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002556{
2557}
2558
Eric Paris7b41b172008-04-23 14:10:25 -04002559static inline int security_socket_sendmsg(struct socket *sock,
2560 struct msghdr *msg, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002561{
2562 return 0;
2563}
2564
Eric Paris7b41b172008-04-23 14:10:25 -04002565static inline int security_socket_recvmsg(struct socket *sock,
2566 struct msghdr *msg, int size,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002567 int flags)
2568{
2569 return 0;
2570}
2571
Eric Paris7b41b172008-04-23 14:10:25 -04002572static inline int security_socket_getsockname(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002573{
2574 return 0;
2575}
2576
Eric Paris7b41b172008-04-23 14:10:25 -04002577static inline int security_socket_getpeername(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002578{
2579 return 0;
2580}
2581
Eric Paris7b41b172008-04-23 14:10:25 -04002582static inline int security_socket_getsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002583 int level, int optname)
2584{
2585 return 0;
2586}
2587
Eric Paris7b41b172008-04-23 14:10:25 -04002588static inline int security_socket_setsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002589 int level, int optname)
2590{
2591 return 0;
2592}
2593
Eric Paris7b41b172008-04-23 14:10:25 -04002594static inline int security_socket_shutdown(struct socket *sock, int how)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002595{
2596 return 0;
2597}
Eric Paris7b41b172008-04-23 14:10:25 -04002598static inline int security_sock_rcv_skb(struct sock *sk,
2599 struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002600{
2601 return 0;
2602}
2603
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002604static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2605 int __user *optlen, unsigned len)
2606{
2607 return -ENOPROTOOPT;
2608}
2609
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002610static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002611{
2612 return -ENOPROTOOPT;
2613}
2614
Al Virodd0fc662005-10-07 07:46:04 +01002615static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002616{
2617 return 0;
2618}
2619
2620static inline void security_sk_free(struct sock *sk)
2621{
2622}
Trent Jaegerdf718372005-12-13 23:12:27 -08002623
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002624static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2625{
2626}
2627
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002628static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002629{
Trent Jaegerdf718372005-12-13 23:12:27 -08002630}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002631
2632static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2633{
2634}
2635
Eric Paris7b41b172008-04-23 14:10:25 -04002636static inline void security_sock_graft(struct sock *sk, struct socket *parent)
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002637{
2638}
2639
2640static inline int security_inet_conn_request(struct sock *sk,
2641 struct sk_buff *skb, struct request_sock *req)
2642{
2643 return 0;
2644}
2645
2646static inline void security_inet_csk_clone(struct sock *newsk,
2647 const struct request_sock *req)
2648{
2649}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002650
2651static inline void security_inet_conn_established(struct sock *sk,
2652 struct sk_buff *skb)
2653{
2654}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002655#endif /* CONFIG_SECURITY_NETWORK */
2656
Trent Jaegerdf718372005-12-13 23:12:27 -08002657#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07002658
Paul Moore03e1ad72008-04-12 19:07:52 -07002659int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2660int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2661void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2662int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
James Morris20510f22007-10-16 23:31:32 -07002663int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2664int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2665 struct xfrm_sec_ctx *polsec, u32 secid);
2666int security_xfrm_state_delete(struct xfrm_state *x);
2667void security_xfrm_state_free(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -07002668int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
James Morris20510f22007-10-16 23:31:32 -07002669int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2670 struct xfrm_policy *xp, struct flowi *fl);
2671int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2672void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
Trent Jaegerdf718372005-12-13 23:12:27 -08002673
Trent Jaegerdf718372005-12-13 23:12:27 -08002674#else /* CONFIG_SECURITY_NETWORK_XFRM */
James Morris20510f22007-10-16 23:31:32 -07002675
Paul Moore03e1ad72008-04-12 19:07:52 -07002676static 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 -08002677{
2678 return 0;
2679}
2680
Paul Moore03e1ad72008-04-12 19:07:52 -07002681static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
Trent Jaegerdf718372005-12-13 23:12:27 -08002682{
2683 return 0;
2684}
2685
Paul Moore03e1ad72008-04-12 19:07:52 -07002686static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08002687{
2688}
2689
Paul Moore03e1ad72008-04-12 19:07:52 -07002690static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002691{
2692 return 0;
2693}
2694
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002695static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2696 struct xfrm_user_sec_ctx *sec_ctx)
2697{
2698 return 0;
2699}
2700
2701static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2702 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08002703{
2704 return 0;
2705}
2706
2707static inline void security_xfrm_state_free(struct xfrm_state *x)
2708{
2709}
2710
David S. Miller6f68dc32006-06-08 23:58:52 -07002711static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002712{
2713 return 0;
2714}
2715
Paul Moore03e1ad72008-04-12 19:07:52 -07002716static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08002717{
2718 return 0;
2719}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002720
2721static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2722 struct xfrm_policy *xp, struct flowi *fl)
2723{
2724 return 1;
2725}
2726
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002727static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002728{
2729 return 0;
2730}
2731
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002732static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2733{
2734}
2735
Trent Jaegerdf718372005-12-13 23:12:27 -08002736#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2737
David Howells29db9192005-10-30 15:02:44 -08002738#ifdef CONFIG_KEYS
2739#ifdef CONFIG_SECURITY
David Howells29db9192005-10-30 15:02:44 -08002740
James Morris20510f22007-10-16 23:31:32 -07002741int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags);
2742void security_key_free(struct key *key);
2743int security_key_permission(key_ref_t key_ref,
2744 struct task_struct *context, key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07002745int security_key_getsecurity(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08002746
2747#else
2748
Michael LeMayd7200242006-06-22 14:47:17 -07002749static inline int security_key_alloc(struct key *key,
David Howells7e047ef2006-06-26 00:24:50 -07002750 struct task_struct *tsk,
2751 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08002752{
2753 return 0;
2754}
2755
2756static inline void security_key_free(struct key *key)
2757{
2758}
2759
2760static inline int security_key_permission(key_ref_t key_ref,
2761 struct task_struct *context,
2762 key_perm_t perm)
2763{
2764 return 0;
2765}
2766
David Howells70a5bb72008-04-29 01:01:26 -07002767static inline int security_key_getsecurity(struct key *key, char **_buffer)
2768{
2769 *_buffer = NULL;
2770 return 0;
2771}
2772
David Howells29db9192005-10-30 15:02:44 -08002773#endif
2774#endif /* CONFIG_KEYS */
2775
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02002776#ifdef CONFIG_AUDIT
2777#ifdef CONFIG_SECURITY
2778int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2779int security_audit_rule_known(struct audit_krule *krule);
2780int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2781 struct audit_context *actx);
2782void security_audit_rule_free(void *lsmrule);
2783
2784#else
2785
2786static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2787 void **lsmrule)
2788{
2789 return 0;
2790}
2791
2792static inline int security_audit_rule_known(struct audit_krule *krule)
2793{
2794 return 0;
2795}
2796
2797static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2798 void *lsmrule, struct audit_context *actx)
2799{
2800 return 0;
2801}
2802
2803static inline void security_audit_rule_free(void *lsmrule)
2804{ }
2805
2806#endif /* CONFIG_SECURITY */
2807#endif /* CONFIG_AUDIT */
2808
Linus Torvalds1da177e2005-04-16 15:20:36 -07002809#endif /* ! __LINUX_SECURITY_H */
2810