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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
David Howells29db9192005-10-30 15:02:44 -080025#include <linux/key.h>
Al Viro40401532012-02-13 03:58:52 +000026#include <linux/capability.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090027#include <linux/slab.h>
Al Viro40401532012-02-13 03:58:52 +000028#include <linux/err.h>
29
30struct linux_binprm;
31struct cred;
32struct rlimit;
33struct siginfo;
34struct sem_array;
35struct sembuf;
36struct kern_ipc_perm;
37struct audit_context;
38struct super_block;
39struct inode;
40struct dentry;
41struct file;
42struct vfsmount;
43struct path;
44struct qstr;
45struct nameidata;
46struct iattr;
47struct fown_struct;
48struct file_operations;
49struct shmid_kernel;
50struct msg_msg;
51struct msg_queue;
52struct xattr;
53struct xfrm_sec_ctx;
54struct mm_struct;
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020056/* Maximum number of letters for an LSM name string */
57#define SECURITY_NAME_MAX 10
58
Eric Paris06112162008-11-11 22:02:50 +110059/* If capable should audit the security request */
60#define SECURITY_CAP_NOAUDIT 0
61#define SECURITY_CAP_AUDIT 1
62
Linus Torvalds1da177e2005-04-16 15:20:36 -070063struct ctl_table;
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +020064struct audit_krule;
Serge E. Hallyn34867402011-03-23 16:43:17 -070065struct user_namespace;
Al Viro40401532012-02-13 03:58:52 +000066struct timezone;
Linus Torvalds1da177e2005-04-16 15:20:36 -070067
68/*
69 * These functions are in security/capability.c and are used
70 * as the default capabilities functions
71 */
Eric Paris6a9de492012-01-03 12:25:14 -050072extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
73 int cap, int audit);
Richard Cochran1e6d7672011-02-01 13:50:58 +000074extern int cap_settime(const struct timespec *ts, const struct timezone *tz);
Ingo Molnar9e488582009-05-07 19:26:19 +100075extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +010076extern int cap_ptrace_traceme(struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -040077extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +110078extern int cap_capset(struct cred *new, const struct cred *old,
79 const kernel_cap_t *effective,
80 const kernel_cap_t *inheritable,
81 const kernel_cap_t *permitted);
David Howellsa6f76f22008-11-14 10:39:24 +110082extern int cap_bprm_set_creds(struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -070083extern int cap_bprm_secureexec(struct linux_binprm *bprm);
David Howells8f0cfa52008-04-29 00:59:41 -070084extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
85 const void *value, size_t size, int flags);
86extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -070087extern int cap_inode_need_killpriv(struct dentry *dentry);
88extern int cap_inode_killpriv(struct dentry *dentry);
Al Virod0077942012-05-30 13:11:37 -040089extern int cap_mmap_addr(unsigned long addr);
Al Viroe5467852012-05-30 13:30:51 -040090extern int cap_mmap_file(struct file *file, unsigned long reqprot,
91 unsigned long prot, unsigned long flags);
David Howellsd84f4f92008-11-14 10:39:23 +110092extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070093extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +110094 unsigned long arg4, unsigned long arg5);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +090095extern int cap_task_setscheduler(struct task_struct *p);
Eric Paris7b41b172008-04-23 14:10:25 -040096extern int cap_task_setioprio(struct task_struct *p, int ioprio);
97extern int cap_task_setnice(struct task_struct *p, int nice);
James Morris20510f22007-10-16 23:31:32 -070098extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -070099
100struct msghdr;
101struct sk_buff;
102struct sock;
103struct sockaddr;
104struct socket;
Trent Jaegerdf718372005-12-13 23:12:27 -0800105struct flowi;
106struct dst_entry;
107struct xfrm_selector;
108struct xfrm_policy;
109struct xfrm_state;
110struct xfrm_user_sec_ctx;
Eric Paris2069f452008-07-04 09:47:13 +1000111struct seq_file;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112
113extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
wzt.wzt@gmail.com189b3b12010-02-23 23:15:28 +0800115void reset_security_ops(void);
116
David Howells6e141542009-12-15 19:27:45 +0000117#ifdef CONFIG_MMU
Eric Parised032182007-06-28 15:55:21 -0400118extern unsigned long mmap_min_addr;
Eric Parisa2551df2009-07-31 12:54:11 -0400119extern unsigned long dac_mmap_min_addr;
David Howells6e141542009-12-15 19:27:45 +0000120#else
121#define dac_mmap_min_addr 0UL
122#endif
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124/*
125 * Values used in the task_security_ops calls
126 */
127/* setuid or setgid, id0 == uid or gid */
128#define LSM_SETID_ID 1
129
130/* setreuid or setregid, id0 == real, id1 == eff */
131#define LSM_SETID_RE 2
132
133/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
134#define LSM_SETID_RES 4
135
136/* setfsuid or setfsgid, id0 == fsuid or fsgid */
137#define LSM_SETID_FS 8
138
139/* forward declares to avoid warnings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140struct sched_param;
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700141struct request_sock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142
David Howellsa6f76f22008-11-14 10:39:24 +1100143/* bprm->unsafe reasons */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144#define LSM_UNSAFE_SHARE 1
145#define LSM_UNSAFE_PTRACE 2
146#define LSM_UNSAFE_PTRACE_CAP 4
Andy Lutomirski259e5e62012-04-12 16:47:50 -0500147#define LSM_UNSAFE_NO_NEW_PRIVS 8
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
David Howells6e141542009-12-15 19:27:45 +0000149#ifdef CONFIG_MMU
Alexey Dobriyan8d65af72009-09-23 15:57:19 -0700150extern int mmap_min_addr_handler(struct ctl_table *table, int write,
Eric Paris47d439e2009-08-07 14:53:57 -0400151 void __user *buffer, size_t *lenp, loff_t *ppos);
David Howells6e141542009-12-15 19:27:45 +0000152#endif
Eric Paris47d439e2009-08-07 14:53:57 -0400153
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400154/* security_inode_init_security callback function to write xattrs */
155typedef int (*initxattrs) (struct inode *inode,
156 const struct xattr *xattr_array, void *fs_data);
157
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158#ifdef CONFIG_SECURITY
159
Eric Parise0007522008-03-05 10:31:54 -0500160struct security_mnt_opts {
161 char **mnt_opts;
162 int *mnt_opts_flags;
163 int num_mnt_opts;
164};
165
166static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
167{
168 opts->mnt_opts = NULL;
169 opts->mnt_opts_flags = NULL;
170 opts->num_mnt_opts = 0;
171}
172
173static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
174{
175 int i;
176 if (opts->mnt_opts)
Eric Paris7b41b172008-04-23 14:10:25 -0400177 for (i = 0; i < opts->num_mnt_opts; i++)
Eric Parise0007522008-03-05 10:31:54 -0500178 kfree(opts->mnt_opts[i]);
179 kfree(opts->mnt_opts);
180 opts->mnt_opts = NULL;
181 kfree(opts->mnt_opts_flags);
182 opts->mnt_opts_flags = NULL;
183 opts->num_mnt_opts = 0;
184}
185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186/**
187 * struct security_operations - main security structure
188 *
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200189 * Security module identifier.
190 *
191 * @name:
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -0700192 * A string that acts as a unique identifier for the LSM with max number
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200193 * of characters = SECURITY_NAME_MAX.
194 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 * Security hooks for program execution operations.
196 *
David Howellsa6f76f22008-11-14 10:39:24 +1100197 * @bprm_set_creds:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 * Save security information in the bprm->security field, typically based
199 * on information about the bprm->file, for later use by the apply_creds
200 * hook. This hook may also optionally check permissions (e.g. for
201 * transitions between security domains).
202 * This hook may be called multiple times during a single execve, e.g. for
203 * interpreters. The hook can tell whether it has already been called by
204 * checking to see if @bprm->security is non-NULL. If so, then the hook
205 * may decide either to retain the security information saved earlier or
206 * to replace it.
207 * @bprm contains the linux_binprm structure.
208 * Return 0 if the hook is successful and permission is granted.
209 * @bprm_check_security:
David Howellsa6f76f22008-11-14 10:39:24 +1100210 * This hook mediates the point when a search for a binary handler will
211 * begin. It allows a check the @bprm->security value which is set in the
212 * preceding set_creds call. The primary difference from set_creds is
213 * that the argv list and envp list are reliably available in @bprm. This
214 * hook may be called multiple times during a single execve; and in each
215 * pass set_creds is called first.
Eric Paris7b41b172008-04-23 14:10:25 -0400216 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 * Return 0 if the hook is successful and permission is granted.
David Howellsa6f76f22008-11-14 10:39:24 +1100218 * @bprm_committing_creds:
219 * Prepare to install the new security attributes of a process being
220 * transformed by an execve operation, based on the old credentials
221 * pointed to by @current->cred and the information set in @bprm->cred by
222 * the bprm_set_creds hook. @bprm points to the linux_binprm structure.
223 * This hook is a good place to perform state changes on the process such
224 * as closing open file descriptors to which access will no longer be
225 * granted when the attributes are changed. This is called immediately
226 * before commit_creds().
227 * @bprm_committed_creds:
228 * Tidy up after the installation of the new security attributes of a
229 * process being transformed by an execve operation. The new credentials
230 * have, by this point, been set to @current->cred. @bprm points to the
231 * linux_binprm structure. This hook is a good place to perform state
232 * changes on the process such as clearing out non-inheritable signal
233 * state. This is called immediately after commit_creds().
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 * @bprm_secureexec:
Eric Paris7b41b172008-04-23 14:10:25 -0400235 * Return a boolean value (0 or 1) indicating whether a "secure exec"
236 * is required. The flag is passed in the auxiliary table
237 * on the initial stack to the ELF interpreter to indicate whether libc
238 * should enable secure mode.
239 * @bprm contains the linux_binprm structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 *
241 * Security hooks for filesystem operations.
242 *
243 * @sb_alloc_security:
244 * Allocate and attach a security structure to the sb->s_security field.
245 * The s_security field is initialized to NULL when the structure is
246 * allocated.
247 * @sb contains the super_block structure to be modified.
248 * Return 0 if operation was successful.
249 * @sb_free_security:
250 * Deallocate and clear the sb->s_security field.
251 * @sb contains the super_block structure to be modified.
252 * @sb_statfs:
David Howells726c3342006-06-23 02:02:58 -0700253 * Check permission before obtaining filesystem statistics for the @mnt
254 * mountpoint.
255 * @dentry is a handle on the superblock for the filesystem.
Eric Paris7b41b172008-04-23 14:10:25 -0400256 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 * @sb_mount:
258 * Check permission before an object specified by @dev_name is mounted on
259 * the mount point named by @nd. For an ordinary mount, @dev_name
260 * identifies a device if the file system type requires a device. For a
261 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
262 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
263 * pathname of the object being mounted.
264 * @dev_name contains the name for object being mounted.
Al Virob5266eb2008-03-22 17:48:24 -0400265 * @path contains the path for mount point object.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 * @type contains the filesystem type.
267 * @flags contains the mount flags.
268 * @data contains the filesystem-specific data.
269 * Return 0 if permission is granted.
270 * @sb_copy_data:
271 * Allow mount option data to be copied prior to parsing by the filesystem,
272 * so that the security module can extract security-specific mount
273 * options cleanly (a filesystem may modify the data e.g. with strsep()).
274 * This also allows the original mount data to be stripped of security-
275 * specific options to avoid having to make filesystems aware of them.
276 * @type the type of filesystem being mounted.
277 * @orig the original mount data copied from userspace.
278 * @copy copied data which will be passed to the security module.
279 * Returns 0 if the copy was successful.
Eric Parisff36fe22011-03-03 16:09:14 -0500280 * @sb_remount:
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -0700281 * Extracts security system specific mount options and verifies no changes
Eric Parisff36fe22011-03-03 16:09:14 -0500282 * are being made to those options.
283 * @sb superblock being remounted
284 * @data contains the filesystem-specific data.
285 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 * @sb_umount:
287 * Check permission before the @mnt file system is unmounted.
288 * @mnt contains the mounted file system.
289 * @flags contains the unmount flags, e.g. MNT_FORCE.
290 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 * @sb_pivotroot:
292 * Check permission before pivoting the root filesystem.
Al Virob5266eb2008-03-22 17:48:24 -0400293 * @old_path contains the path for the new location of the current root (put_old).
Eric Paris7b41b172008-04-23 14:10:25 -0400294 * @new_path contains the path for the new root (new_root).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 * Return 0 if permission is granted.
Eric Parisc9180a52007-11-30 13:00:35 -0500296 * @sb_set_mnt_opts:
297 * Set the security relevant mount options used for a superblock
298 * @sb the superblock to set security mount options for
Eric Parise0007522008-03-05 10:31:54 -0500299 * @opts binary data structure containing all lsm mount data
Eric Parisc9180a52007-11-30 13:00:35 -0500300 * @sb_clone_mnt_opts:
301 * Copy all security options from a given superblock to another
302 * @oldsb old superblock which contain information to clone
303 * @newsb new superblock which needs filled in
Eric Parise0007522008-03-05 10:31:54 -0500304 * @sb_parse_opts_str:
305 * Parse a string of security data filling in the opts structure
306 * @options string containing all mount options known by the LSM
307 * @opts binary data structure usable by the LSM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 *
309 * Security hooks for inode operations.
310 *
311 * @inode_alloc_security:
312 * Allocate and attach a security structure to @inode->i_security. The
313 * i_security field is initialized to NULL when the inode structure is
314 * allocated.
315 * @inode contains the inode structure.
316 * Return 0 if operation was successful.
317 * @inode_free_security:
318 * @inode contains the inode structure.
319 * Deallocate the inode security structure and set @inode->i_security to
Eric Paris7b41b172008-04-23 14:10:25 -0400320 * NULL.
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700321 * @inode_init_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400322 * Obtain the security attribute name suffix and value to set on a newly
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700323 * created inode and set up the incore security field for the new inode.
324 * This hook is called by the fs code as part of the inode creation
325 * transaction and provides for atomic labeling of the inode, unlike
326 * the post_create/mkdir/... hooks called by the VFS. The hook function
327 * is expected to allocate the name and value via kmalloc, with the caller
328 * being responsible for calling kfree after using them.
329 * If the security module does not use security attributes or does
330 * not wish to put a security attribute on this particular inode,
331 * then it should return -EOPNOTSUPP to skip this processing.
332 * @inode contains the inode structure of the newly created inode.
333 * @dir contains the inode structure of the parent directory.
Eric Paris2a7dba32011-02-01 11:05:39 -0500334 * @qstr contains the last path component of the new object
Stephen Smalley5e41ff92005-09-09 13:01:35 -0700335 * @name will be set to the allocated name suffix (e.g. selinux).
336 * @value will be set to the allocated attribute value.
337 * @len will be set to the length of the value.
338 * Returns 0 if @name and @value have been successfully set,
339 * -EOPNOTSUPP if no security attribute is needed, or
340 * -ENOMEM on memory allocation failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 * @inode_create:
342 * Check permission to create a regular file.
343 * @dir contains inode structure of the parent of the new file.
344 * @dentry contains the dentry structure for the file to be created.
345 * @mode contains the file mode of the file to be created.
346 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 * @inode_link:
348 * Check permission before creating a new hard link to a file.
349 * @old_dentry contains the dentry structure for an existing link to the file.
350 * @dir contains the inode structure of the parent directory of the new link.
351 * @new_dentry contains the dentry structure for the new link.
352 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900353 * @path_link:
354 * Check permission before creating a new hard link to a file.
355 * @old_dentry contains the dentry structure for an existing link
356 * to the file.
357 * @new_dir contains the path structure of the parent directory of
358 * the new link.
359 * @new_dentry contains the dentry structure for the new link.
360 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 * @inode_unlink:
Eric Paris7b41b172008-04-23 14:10:25 -0400362 * Check the permission to remove a hard link to a file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 * @dir contains the inode structure of parent directory of the file.
364 * @dentry contains the dentry structure for file to be unlinked.
365 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900366 * @path_unlink:
367 * Check the permission to remove a hard link to a file.
368 * @dir contains the path structure of parent directory of the file.
369 * @dentry contains the dentry structure for file to be unlinked.
370 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 * @inode_symlink:
372 * Check the permission to create a symbolic link to a file.
373 * @dir contains the inode structure of parent directory of the symbolic link.
374 * @dentry contains the dentry structure of the symbolic link.
375 * @old_name contains the pathname of file.
376 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900377 * @path_symlink:
378 * Check the permission to create a symbolic link to a file.
379 * @dir contains the path structure of parent directory of
380 * the symbolic link.
381 * @dentry contains the dentry structure of the symbolic link.
382 * @old_name contains the pathname of file.
383 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 * @inode_mkdir:
385 * Check permissions to create a new directory in the existing directory
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -0700386 * associated with inode structure @dir.
387 * @dir contains the inode structure of parent of the directory to be created.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 * @dentry contains the dentry structure of new directory.
389 * @mode contains the mode of new directory.
390 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900391 * @path_mkdir:
392 * Check permissions to create a new directory in the existing directory
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -0700393 * associated with path structure @path.
394 * @dir contains the path structure of parent of the directory
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900395 * to be created.
396 * @dentry contains the dentry structure of new directory.
397 * @mode contains the mode of new directory.
398 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 * @inode_rmdir:
400 * Check the permission to remove a directory.
401 * @dir contains the inode structure of parent of the directory to be removed.
402 * @dentry contains the dentry structure of directory to be removed.
403 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900404 * @path_rmdir:
405 * Check the permission to remove a directory.
406 * @dir contains the path structure of parent of the directory to be
407 * removed.
408 * @dentry contains the dentry structure of directory to be removed.
409 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 * @inode_mknod:
411 * Check permissions when creating a special file (or a socket or a fifo
412 * file created via the mknod system call). Note that if mknod operation
413 * is being done for a regular file, then the create hook will be called
414 * and not this hook.
415 * @dir contains the inode structure of parent of the new file.
416 * @dentry contains the dentry structure of the new file.
417 * @mode contains the mode of the new file.
Michael Opdenacker59c51592007-05-09 08:57:56 +0200418 * @dev contains the device number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900420 * @path_mknod:
421 * Check permissions when creating a file. Note that this hook is called
422 * even if mknod operation is being done for a regular file.
423 * @dir contains the path structure of parent of the new file.
424 * @dentry contains the dentry structure of the new file.
425 * @mode contains the mode of the new file.
426 * @dev contains the undecoded device number. Use new_decode_dev() to get
427 * the decoded device number.
428 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429 * @inode_rename:
430 * Check for permission to rename a file or directory.
431 * @old_dir contains the inode structure for parent of the old link.
432 * @old_dentry contains the dentry structure of the old link.
433 * @new_dir contains the inode structure for parent of the new link.
434 * @new_dentry contains the dentry structure of the new link.
435 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900436 * @path_rename:
437 * Check for permission to rename a file or directory.
438 * @old_dir contains the path structure for parent of the old link.
439 * @old_dentry contains the dentry structure of the old link.
440 * @new_dir contains the path structure for parent of the new link.
441 * @new_dentry contains the dentry structure of the new link.
442 * Return 0 if permission is granted.
Tetsuo Handa89eda062009-10-04 21:49:47 +0900443 * @path_chmod:
444 * Check for permission to change DAC's permission of a file or directory.
445 * @dentry contains the dentry structure.
446 * @mnt contains the vfsmnt structure.
447 * @mode contains DAC's mode.
448 * Return 0 if permission is granted.
449 * @path_chown:
450 * Check for permission to change owner/group of a file or directory.
451 * @path contains the path structure.
452 * @uid contains new owner's ID.
453 * @gid contains new group's ID.
454 * Return 0 if permission is granted.
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900455 * @path_chroot:
456 * Check for permission to change root directory.
457 * @path contains the path structure.
458 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459 * @inode_readlink:
460 * Check the permission to read the symbolic link.
461 * @dentry contains the dentry structure for the file link.
462 * Return 0 if permission is granted.
463 * @inode_follow_link:
464 * Check permission to follow a symbolic link when looking up a pathname.
465 * @dentry contains the dentry structure for the link.
466 * @nd contains the nameidata structure for the parent directory.
467 * Return 0 if permission is granted.
468 * @inode_permission:
469 * Check permission before accessing an inode. This hook is called by the
470 * existing Linux permission function, so a security module can use it to
471 * provide additional checking for existing Linux permission checks.
472 * Notice that this hook is called when a file is opened (as well as many
473 * other operations), whereas the file_security_ops permission hook is
474 * called when the actual read/write operations are performed.
475 * @inode contains the inode structure to check.
476 * @mask contains the permission mask.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477 * Return 0 if permission is granted.
478 * @inode_setattr:
479 * Check permission before setting file attributes. Note that the kernel
480 * call to notify_change is performed from several locations, whenever
481 * file attributes change (such as when a file is truncated, chown/chmod
482 * operations, transferring disk quotas, etc).
483 * @dentry contains the dentry structure for the file.
484 * @attr is the iattr structure containing the new file attributes.
485 * Return 0 if permission is granted.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900486 * @path_truncate:
487 * Check permission before truncating a file.
488 * @path contains the path structure for the file.
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900489 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 * @inode_getattr:
491 * Check permission before obtaining file attributes.
492 * @mnt is the vfsmount where the dentry was looked up
493 * @dentry contains the dentry structure for the file.
494 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495 * @inode_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400496 * Check permission before setting the extended attributes
497 * @value identified by @name for @dentry.
498 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499 * @inode_post_setxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400500 * Update inode security field after successful setxattr operation.
501 * @value identified by @name for @dentry.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502 * @inode_getxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400503 * Check permission before obtaining the extended attributes
504 * identified by @name for @dentry.
505 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506 * @inode_listxattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400507 * Check permission before obtaining the list of extended attribute
508 * names for @dentry.
509 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510 * @inode_removexattr:
Eric Paris7b41b172008-04-23 14:10:25 -0400511 * Check permission before removing the extended attribute
512 * identified by @name for @dentry.
513 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 * @inode_getsecurity:
David P. Quigley42492592008-02-04 22:29:39 -0800515 * Retrieve a copy of the extended attribute representation of the
516 * security label associated with @name for @inode via @buffer. Note that
517 * @name is the remainder of the attribute name after the security prefix
518 * has been removed. @alloc is used to specify of the call should return a
519 * value via the buffer or just the value length Return size of buffer on
520 * success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 * @inode_setsecurity:
522 * Set the security label associated with @name for @inode from the
523 * extended attribute value @value. @size indicates the size of the
524 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
Eric Paris7b41b172008-04-23 14:10:25 -0400525 * Note that @name is the remainder of the attribute name after the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526 * security. prefix has been removed.
527 * Return 0 on success.
528 * @inode_listsecurity:
529 * Copy the extended attribute names for the security labels
530 * associated with @inode into @buffer. The maximum size of @buffer
531 * is specified by @buffer_size. @buffer may be NULL to request
532 * the size of the buffer required.
533 * Returns number of bytes used/required on success.
Serge E. Hallynb5376772007-10-16 23:31:36 -0700534 * @inode_need_killpriv:
535 * Called when an inode has been changed.
536 * @dentry is the dentry being changed.
537 * Return <0 on error to abort the inode change operation.
538 * Return 0 if inode_killpriv does not need to be called.
539 * Return >0 if inode_killpriv does need to be called.
540 * @inode_killpriv:
541 * The setuid bit is being removed. Remove similar security labels.
542 * Called with the dentry->d_inode->i_mutex held.
543 * @dentry is the dentry being changed.
544 * Return 0 on success. If error is returned, then the operation
545 * causing setuid bit removal is failed.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200546 * @inode_getsecid:
547 * Get the secid associated with the node.
548 * @inode contains a pointer to the inode.
549 * @secid contains a pointer to the location where result will be saved.
550 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551 *
552 * Security hooks for file operations
553 *
554 * @file_permission:
555 * Check file permissions before accessing an open file. This hook is
556 * called by various operations that read or write files. A security
557 * module can use this hook to perform additional checking on these
558 * operations, e.g. to revalidate permissions on use to support privilege
559 * bracketing or policy changes. Notice that this hook is used when the
560 * actual read/write operations are performed, whereas the
561 * inode_security_ops hook is called when a file is opened (as well as
562 * many other operations).
563 * Caveat: Although this hook can be used to revalidate permissions for
564 * various system call operations that read or write files, it does not
565 * address the revalidation of permissions for memory-mapped files.
566 * Security modules must handle this separately if they need such
567 * revalidation.
568 * @file contains the file structure being accessed.
569 * @mask contains the requested permissions.
570 * Return 0 if permission is granted.
571 * @file_alloc_security:
572 * Allocate and attach a security structure to the file->f_security field.
573 * The security field is initialized to NULL when the structure is first
574 * created.
575 * @file contains the file structure to secure.
576 * Return 0 if the hook is successful and permission is granted.
577 * @file_free_security:
578 * Deallocate and free any security structures stored in file->f_security.
579 * @file contains the file structure being modified.
580 * @file_ioctl:
581 * @file contains the file structure.
582 * @cmd contains the operation to perform.
583 * @arg contains the operational arguments.
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -0700584 * Check permission for an ioctl operation on @file. Note that @arg
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585 * sometimes represents a user space pointer; in other cases, it may be a
586 * simple integer value. When @arg represents a user space pointer, it
587 * should never be used by the security module.
588 * Return 0 if permission is granted.
Al Viroe5467852012-05-30 13:30:51 -0400589 * @mmap_addr :
590 * Check permissions for a mmap operation at @addr.
591 * @addr contains virtual address that will be used for the operation.
592 * Return 0 if permission is granted.
593 * @mmap_file :
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594 * Check permissions for a mmap operation. The @file may be NULL, e.g.
595 * if mapping anonymous memory.
596 * @file contains the file structure for file to map (may be NULL).
597 * @reqprot contains the protection requested by the application.
598 * @prot contains the protection that will be applied by the kernel.
599 * @flags contains the operational flags.
600 * Return 0 if permission is granted.
601 * @file_mprotect:
602 * Check permissions before changing memory access permissions.
603 * @vma contains the memory region to modify.
604 * @reqprot contains the protection requested by the application.
605 * @prot contains the protection that will be applied by the kernel.
606 * Return 0 if permission is granted.
607 * @file_lock:
608 * Check permission before performing file locking operations.
609 * Note: this hook mediates both flock and fcntl style locks.
610 * @file contains the file structure.
611 * @cmd contains the posix-translated lock operation to perform
612 * (e.g. F_RDLCK, F_WRLCK).
613 * Return 0 if permission is granted.
614 * @file_fcntl:
615 * Check permission before allowing the file operation specified by @cmd
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -0700616 * from being performed on the file @file. Note that @arg sometimes
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617 * represents a user space pointer; in other cases, it may be a simple
618 * integer value. When @arg represents a user space pointer, it should
619 * never be used by the security module.
620 * @file contains the file structure.
621 * @cmd contains the operation to be performed.
622 * @arg contains the operational arguments.
623 * Return 0 if permission is granted.
624 * @file_set_fowner:
625 * Save owner security information (typically from current->security) in
626 * file->f_security for later use by the send_sigiotask hook.
627 * @file contains the file structure to update.
628 * Return 0 on success.
629 * @file_send_sigiotask:
630 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
631 * process @tsk. Note that this hook is sometimes called from interrupt.
632 * Note that the fown_struct, @fown, is never outside the context of a
633 * struct file, so the file structure (and associated security information)
634 * can always be obtained:
Robert P. J. Dayb385a142007-02-10 01:46:25 -0800635 * container_of(fown, struct file, f_owner)
Eric Paris7b41b172008-04-23 14:10:25 -0400636 * @tsk contains the structure of task receiving signal.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 * @fown contains the file owner information.
638 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
639 * Return 0 if permission is granted.
640 * @file_receive:
641 * This hook allows security modules to control the ability of a process
642 * to receive an open file descriptor via socket IPC.
643 * @file contains the file structure being received.
644 * Return 0 if permission is granted.
Eric Paris83d49852012-04-04 13:45:40 -0400645 * @file_open
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +0900646 * Save open-time permission checking state for later use upon
647 * file_permission, and recheck access if anything has changed
648 * since inode_permission.
649 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 * Security hooks for task operations.
651 *
652 * @task_create:
653 * Check permission before creating a child process. See the clone(2)
654 * manual page for definitions of the @clone_flags.
655 * @clone_flags contains the flags indicating what should be shared.
656 * Return 0 if permission is granted.
Kees Cook1a2a4d02011-12-21 12:17:03 -0800657 * @task_free:
658 * @task task being freed
659 * Handle release of task-related resources. (Note that this can be called
660 * from interrupt context.)
David Howellsee18d642009-09-02 09:14:21 +0100661 * @cred_alloc_blank:
662 * @cred points to the credentials.
663 * @gfp indicates the atomicity of any memory allocations.
664 * Only allocate sufficient memory and attach to @cred such that
665 * cred_transfer() will not get ENOMEM.
David Howellsf1752ee2008-11-14 10:39:17 +1100666 * @cred_free:
667 * @cred points to the credentials.
668 * Deallocate and clear the cred->security field in a set of credentials.
David Howellsd84f4f92008-11-14 10:39:23 +1100669 * @cred_prepare:
670 * @new points to the new credentials.
671 * @old points to the original credentials.
672 * @gfp indicates the atomicity of any memory allocations.
673 * Prepare a new set of credentials by copying the data from the old set.
David Howellsee18d642009-09-02 09:14:21 +0100674 * @cred_transfer:
675 * @new points to the new credentials.
676 * @old points to the original credentials.
677 * Transfer data from original creds to new creds
David Howells3a3b7ce2008-11-14 10:39:28 +1100678 * @kernel_act_as:
679 * Set the credentials for a kernel service to act as (subjective context).
680 * @new points to the credentials to be modified.
681 * @secid specifies the security ID to be set
682 * The current task must be the one that nominated @secid.
683 * Return 0 if successful.
684 * @kernel_create_files_as:
685 * Set the file creation context in a set of credentials to be the same as
686 * the objective context of the specified inode.
687 * @new points to the credentials to be modified.
688 * @inode points to the inode to use as a reference.
689 * The current task must be the one that nominated @inode.
690 * Return 0 if successful.
Eric Paris91884992009-08-13 09:44:57 -0400691 * @kernel_module_request:
692 * Ability to trigger the kernel to automatically upcall to userspace for
693 * userspace to load a kernel module with the given name.
Eric Parisdd8dbf22009-11-03 16:35:32 +1100694 * @kmod_name name of the module requested by the kernel
James Morrisf322abf2009-08-14 11:19:29 +1000695 * Return 0 if successful.
David Howellsd84f4f92008-11-14 10:39:23 +1100696 * @task_fix_setuid:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697 * Update the module's state after setting one or more of the user
698 * identity attributes of the current process. The @flags parameter
699 * indicates which of the set*uid system calls invoked this hook. If
David Howellsd84f4f92008-11-14 10:39:23 +1100700 * @new is the set of credentials that will be installed. Modifications
701 * should be made to this rather than to @current->cred.
702 * @old is the set of credentials that are being replaces
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703 * @flags contains one of the LSM_SETID_* values.
704 * Return 0 on success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 * @task_setpgid:
706 * Check permission before setting the process group identifier of the
707 * process @p to @pgid.
708 * @p contains the task_struct for process being modified.
709 * @pgid contains the new pgid.
710 * Return 0 if permission is granted.
711 * @task_getpgid:
712 * Check permission before getting the process group identifier of the
713 * process @p.
714 * @p contains the task_struct for the process.
715 * Return 0 if permission is granted.
716 * @task_getsid:
717 * Check permission before getting the session identifier of the process
718 * @p.
719 * @p contains the task_struct for the process.
720 * Return 0 if permission is granted.
David Quigleyf9008e42006-06-30 01:55:46 -0700721 * @task_getsecid:
722 * Retrieve the security identifier of the process @p.
723 * @p contains the task_struct for the process and place is into @secid.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200724 * In case of failure, @secid will be set to zero.
725 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 * @task_setnice:
727 * Check permission before setting the nice value of @p to @nice.
728 * @p contains the task_struct of process.
729 * @nice contains the new nice value.
730 * Return 0 if permission is granted.
James Morris03e68062006-06-23 02:03:58 -0700731 * @task_setioprio
732 * Check permission before setting the ioprio value of @p to @ioprio.
733 * @p contains the task_struct of process.
734 * @ioprio contains the new ioprio value
735 * Return 0 if permission is granted.
David Quigleya1836a42006-06-30 01:55:49 -0700736 * @task_getioprio
737 * Check permission before getting the ioprio value of @p.
738 * @p contains the task_struct of process.
739 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 * @task_setrlimit:
741 * Check permission before setting the resource limits of the current
742 * process for @resource to @new_rlim. The old resource limit values can
743 * be examined by dereferencing (current->signal->rlim + resource).
744 * @resource contains the resource whose limit is being set.
745 * @new_rlim contains the new limits for @resource.
746 * Return 0 if permission is granted.
747 * @task_setscheduler:
748 * Check permission before setting scheduling policy and/or parameters of
749 * process @p based on @policy and @lp.
750 * @p contains the task_struct for process.
751 * @policy contains the scheduling policy.
752 * @lp contains the scheduling parameters.
753 * Return 0 if permission is granted.
754 * @task_getscheduler:
755 * Check permission before obtaining scheduling information for process
756 * @p.
757 * @p contains the task_struct for process.
758 * Return 0 if permission is granted.
David Quigley35601542006-06-23 02:04:01 -0700759 * @task_movememory
760 * Check permission before moving memory owned by process @p.
761 * @p contains the task_struct for process.
762 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 * @task_kill:
764 * Check permission before sending signal @sig to @p. @info can be NULL,
765 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
766 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
767 * from the kernel and should typically be permitted.
768 * SIGIO signals are handled separately by the send_sigiotask hook in
769 * file_security_ops.
770 * @p contains the task_struct for process.
771 * @info contains the signal information.
772 * @sig contains the signal value.
David Quigleyf9008e42006-06-30 01:55:46 -0700773 * @secid contains the sid of the process where the signal originated
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774 * Return 0 if permission is granted.
775 * @task_wait:
776 * Check permission before allowing a process to reap a child process @p
777 * and collect its status information.
778 * @p contains the task_struct for process.
779 * Return 0 if permission is granted.
780 * @task_prctl:
781 * Check permission before performing a process control operation on the
782 * current process.
783 * @option contains the operation.
784 * @arg2 contains a argument.
785 * @arg3 contains a argument.
786 * @arg4 contains a argument.
787 * @arg5 contains a argument.
David Howellsd84f4f92008-11-14 10:39:23 +1100788 * Return -ENOSYS if no-one wanted to handle this op, any other value to
789 * cause prctl() to return immediately with that value.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790 * @task_to_inode:
Eric Paris7b41b172008-04-23 14:10:25 -0400791 * Set the security attributes for an inode based on an associated task's
792 * security attributes, e.g. for /proc/pid inodes.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793 * @p contains the task_struct for the task.
794 * @inode contains the inode structure for the inode.
795 *
796 * Security hooks for Netlink messaging.
797 *
798 * @netlink_send:
799 * Save security information for a netlink message so that permission
800 * checking can be performed when the message is processed. The security
801 * information can be saved using the eff_cap field of the
Eric Paris7b41b172008-04-23 14:10:25 -0400802 * netlink_skb_parms structure. Also may be used to provide fine
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803 * grained control over message transmission.
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -0700804 * @sk associated sock of task sending the message.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805 * @skb contains the sk_buff structure for the netlink message.
806 * Return 0 if the information was successfully saved and message
807 * is allowed to be transmitted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808 *
809 * Security hooks for Unix domain networking.
810 *
811 * @unix_stream_connect:
812 * Check permissions before establishing a Unix domain stream connection
813 * between @sock and @other.
David S. Miller3610cda2011-01-05 15:38:53 -0800814 * @sock contains the sock structure.
815 * @other contains the peer sock structure.
816 * @newsk contains the new sock structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817 * Return 0 if permission is granted.
818 * @unix_may_send:
819 * Check permissions before connecting or sending datagrams from @sock to
820 * @other.
821 * @sock contains the socket structure.
Javier Martinez Canillasfbe74e32012-02-15 11:58:54 +0100822 * @other contains the peer socket structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823 * Return 0 if permission is granted.
824 *
825 * The @unix_stream_connect and @unix_may_send hooks were necessary because
826 * Linux provides an alternative to the conventional file name space for Unix
827 * domain sockets. Whereas binding and connecting to sockets in the file name
828 * space is mediated by the typical file permissions (and caught by the mknod
829 * and permission hooks in inode_security_ops), binding and connecting to
830 * sockets in the abstract name space is completely unmediated. Sufficient
831 * control of Unix domain sockets in the abstract name space isn't possible
832 * using only the socket layer hooks, since we need to know the actual target
833 * socket, which is not looked up until we are inside the af_unix code.
834 *
835 * Security hooks for socket operations.
836 *
837 * @socket_create:
838 * Check permissions prior to creating a new socket.
839 * @family contains the requested protocol family.
840 * @type contains the requested communications type.
841 * @protocol contains the requested protocol.
842 * @kern set to 1 if a kernel socket.
843 * Return 0 if permission is granted.
844 * @socket_post_create:
845 * This hook allows a module to update or allocate a per-socket security
846 * structure. Note that the security field was not added directly to the
847 * socket structure, but rather, the socket security information is stored
848 * in the associated inode. Typically, the inode alloc_security hook will
849 * allocate and and attach security information to
850 * sock->inode->i_security. This hook may be used to update the
851 * sock->inode->i_security field with additional information that wasn't
852 * available when the inode was allocated.
853 * @sock contains the newly created socket structure.
854 * @family contains the requested protocol family.
855 * @type contains the requested communications type.
856 * @protocol contains the requested protocol.
857 * @kern set to 1 if a kernel socket.
858 * @socket_bind:
859 * Check permission before socket protocol layer bind operation is
860 * performed and the socket @sock is bound to the address specified in the
861 * @address parameter.
862 * @sock contains the socket structure.
863 * @address contains the address to bind to.
864 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400865 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 * @socket_connect:
867 * Check permission before socket protocol layer connect operation
868 * attempts to connect socket @sock to a remote address, @address.
869 * @sock contains the socket structure.
870 * @address contains the address of remote endpoint.
871 * @addrlen contains the length of address.
Eric Paris7b41b172008-04-23 14:10:25 -0400872 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873 * @socket_listen:
874 * Check permission before socket protocol layer listen operation.
875 * @sock contains the socket structure.
876 * @backlog contains the maximum length for the pending connection queue.
877 * Return 0 if permission is granted.
878 * @socket_accept:
879 * Check permission before accepting a new connection. Note that the new
880 * socket, @newsock, has been created and some information copied to it,
881 * but the accept operation has not actually been performed.
882 * @sock contains the listening socket structure.
883 * @newsock contains the newly created server socket for connection.
884 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885 * @socket_sendmsg:
886 * Check permission before transmitting a message to another socket.
887 * @sock contains the socket structure.
888 * @msg contains the message to be transmitted.
889 * @size contains the size of message.
890 * Return 0 if permission is granted.
891 * @socket_recvmsg:
892 * Check permission before receiving a message from a socket.
893 * @sock contains the socket structure.
894 * @msg contains the message structure.
895 * @size contains the size of message structure.
896 * @flags contains the operational flags.
Eric Paris7b41b172008-04-23 14:10:25 -0400897 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898 * @socket_getsockname:
899 * Check permission before the local address (name) of the socket object
900 * @sock is retrieved.
901 * @sock contains the socket structure.
902 * Return 0 if permission is granted.
903 * @socket_getpeername:
904 * Check permission before the remote address (name) of a socket object
905 * @sock is retrieved.
906 * @sock contains the socket structure.
907 * Return 0 if permission is granted.
908 * @socket_getsockopt:
909 * Check permissions before retrieving the options associated with socket
910 * @sock.
911 * @sock contains the socket structure.
912 * @level contains the protocol level to retrieve option from.
913 * @optname contains the name of option to retrieve.
914 * Return 0 if permission is granted.
915 * @socket_setsockopt:
916 * Check permissions before setting the options associated with socket
917 * @sock.
918 * @sock contains the socket structure.
919 * @level contains the protocol level to set options for.
920 * @optname contains the name of the option to set.
Eric Paris7b41b172008-04-23 14:10:25 -0400921 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922 * @socket_shutdown:
923 * Checks permission before all or part of a connection on the socket
924 * @sock is shut down.
925 * @sock contains the socket structure.
926 * @how contains the flag indicating how future sends and receives are handled.
927 * Return 0 if permission is granted.
928 * @socket_sock_rcv_skb:
929 * Check permissions on incoming network packets. This hook is distinct
930 * from Netfilter's IP input hooks since it is the first time that the
931 * incoming sk_buff @skb has been associated with a particular socket, @sk.
Tetsuo Handa0ed73182010-01-06 09:23:54 +0900932 * Must not sleep inside this hook because some callers hold spinlocks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933 * @sk contains the sock (not socket) associated with the incoming sk_buff.
934 * @skb contains the incoming network data.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200935 * @socket_getpeersec_stream:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936 * This hook allows the security module to provide peer socket security
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200937 * state for unix or connected tcp sockets to userspace via getsockopt
938 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
939 * socket is associated with an ipsec SA.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940 * @sock is the local socket.
941 * @optval userspace memory where the security state is to be copied.
942 * @optlen userspace int where the module should copy the actual length
943 * of the security state.
944 * @len as input is the maximum length to copy to userspace provided
945 * by the caller.
946 * Return 0 if all is well, otherwise, typical getsockopt return
947 * values.
Serge Hallyn6da34ba2007-10-20 00:53:30 +0200948 * @socket_getpeersec_dgram:
Eric Paris7b41b172008-04-23 14:10:25 -0400949 * This hook allows the security module to provide peer socket security
950 * state for udp sockets on a per-packet basis to userspace via
951 * getsockopt SO_GETPEERSEC. The application must first have indicated
952 * the IP_PASSSEC option via getsockopt. It can then retrieve the
953 * security state returned by this hook for a packet via the SCM_SECURITY
954 * ancillary message type.
955 * @skb is the skbuff for the packet being queried
956 * @secdata is a pointer to a buffer in which to copy the security data
957 * @seclen is the maximum length for @secdata
958 * Return 0 on success, error on failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959 * @sk_alloc_security:
Eric Paris7b41b172008-04-23 14:10:25 -0400960 * Allocate and attach a security structure to the sk->sk_security field,
961 * which is used to copy security attributes between local stream sockets.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962 * @sk_free_security:
963 * Deallocate security structure.
Venkat Yekkirala892c1412006-08-04 23:08:56 -0700964 * @sk_clone_security:
965 * Clone/copy security structure.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -0700966 * @sk_getsecid:
967 * Retrieve the LSM-specific secid for the sock to enable caching of network
Trent Jaegerdf718372005-12-13 23:12:27 -0800968 * authorizations.
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700969 * @sock_graft:
970 * Sets the socket's isec sid to the sock's sid.
971 * @inet_conn_request:
972 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
973 * @inet_csk_clone:
974 * Sets the new child socket's sid to the openreq sid.
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600975 * @inet_conn_established:
Eric Paris7b41b172008-04-23 14:10:25 -0400976 * Sets the connection's peersid to the secmark on skb.
Eric Paris2606fd12010-10-13 16:24:41 -0400977 * @secmark_relabel_packet:
978 * check if the process should be allowed to relabel packets to the given secid
979 * @security_secmark_refcount_inc
980 * tells the LSM to increment the number of secmark labeling rules loaded
981 * @security_secmark_refcount_dec
982 * tells the LSM to decrement the number of secmark labeling rules loaded
Venkat Yekkirala4237c752006-07-24 23:32:50 -0700983 * @req_classify_flow:
984 * Sets the flow's sid to the openreq sid.
Paul Moore2b980db2009-08-28 18:12:43 -0400985 * @tun_dev_create:
986 * Check permissions prior to creating a new TUN device.
987 * @tun_dev_post_create:
988 * This hook allows a module to update or allocate a per-socket security
989 * structure.
990 * @sk contains the newly created sock structure.
991 * @tun_dev_attach:
992 * Check permissions prior to attaching to a persistent TUN device. This
993 * hook can also be used by the module to update any security state
994 * associated with the TUN device's sock structure.
995 * @sk contains the existing sock structure.
Trent Jaegerdf718372005-12-13 23:12:27 -0800996 *
997 * Security hooks for XFRM operations.
998 *
999 * @xfrm_policy_alloc_security:
Paul Moore03e1ad72008-04-12 19:07:52 -07001000 * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
1001 * Database used by the XFRM system.
Trent Jaegerdf718372005-12-13 23:12:27 -08001002 * @sec_ctx contains the security context information being provided by
1003 * the user-level policy update program (e.g., setkey).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001004 * Allocate a security structure to the xp->security field; the security
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001005 * field is initialized to NULL when the xfrm_policy is allocated.
Trent Jaegerdf718372005-12-13 23:12:27 -08001006 * Return 0 if operation was successful (memory to allocate, legal context)
1007 * @xfrm_policy_clone_security:
Paul Moore03e1ad72008-04-12 19:07:52 -07001008 * @old_ctx contains an existing xfrm_sec_ctx.
1009 * @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
1010 * Allocate a security structure in new_ctxp that contains the
1011 * information from the old_ctx structure.
Trent Jaegerdf718372005-12-13 23:12:27 -08001012 * Return 0 if operation was successful (memory to allocate).
1013 * @xfrm_policy_free_security:
Paul Moore03e1ad72008-04-12 19:07:52 -07001014 * @ctx contains the xfrm_sec_ctx
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001015 * Deallocate xp->security.
1016 * @xfrm_policy_delete_security:
Paul Moore03e1ad72008-04-12 19:07:52 -07001017 * @ctx contains the xfrm_sec_ctx.
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001018 * Authorize deletion of xp->security.
Trent Jaegerdf718372005-12-13 23:12:27 -08001019 * @xfrm_state_alloc_security:
1020 * @x contains the xfrm_state being added to the Security Association
1021 * Database by the XFRM system.
1022 * @sec_ctx contains the security context information being provided by
1023 * the user-level SA generation program (e.g., setkey or racoon).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001024 * @secid contains the secid from which to take the mls portion of the context.
1025 * Allocate a security structure to the x->security field; the security
1026 * field is initialized to NULL when the xfrm_state is allocated. Set the
1027 * context to correspond to either sec_ctx or polsec, with the mls portion
1028 * taken from secid in the latter case.
Trent Jaegerdf718372005-12-13 23:12:27 -08001029 * Return 0 if operation was successful (memory to allocate, legal context).
1030 * @xfrm_state_free_security:
1031 * @x contains the xfrm_state.
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001032 * Deallocate x->security.
1033 * @xfrm_state_delete_security:
1034 * @x contains the xfrm_state.
1035 * Authorize deletion of x->security.
Trent Jaegerdf718372005-12-13 23:12:27 -08001036 * @xfrm_policy_lookup:
Paul Moore03e1ad72008-04-12 19:07:52 -07001037 * @ctx contains the xfrm_sec_ctx for which the access control is being
Trent Jaegerdf718372005-12-13 23:12:27 -08001038 * checked.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001039 * @fl_secid contains the flow security label that is used to authorize
Trent Jaegerdf718372005-12-13 23:12:27 -08001040 * access to the policy xp.
1041 * @dir contains the direction of the flow (input or output).
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001042 * Check permission when a flow selects a xfrm_policy for processing
Trent Jaegerdf718372005-12-13 23:12:27 -08001043 * XFRMs on a packet. The hook is called when selecting either a
1044 * per-socket policy or a generic xfrm policy.
Venkat Yekkirala5b368e62006-10-05 15:42:18 -05001045 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
1046 * on other errors.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001047 * @xfrm_state_pol_flow_match:
1048 * @x contains the state to match.
1049 * @xp contains the policy to check for a match.
1050 * @fl contains the flow to check for a match.
1051 * Return 1 if there is a match.
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001052 * @xfrm_decode_session:
1053 * @skb points to skb to decode.
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001054 * @secid points to the flow key secid to set.
1055 * @ckall says if all xfrms used should be checked for same secid.
1056 * Return 0 if ckall is zero or all xfrms used have the same secid.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001057 *
David Howells29db9192005-10-30 15:02:44 -08001058 * Security hooks affecting all Key Management operations
1059 *
1060 * @key_alloc:
1061 * Permit allocation of a key and assign security data. Note that key does
1062 * not have a serial number assigned at this point.
1063 * @key points to the key.
David Howells7e047ef2006-06-26 00:24:50 -07001064 * @flags is the allocation flags
David Howells29db9192005-10-30 15:02:44 -08001065 * Return 0 if permission is granted, -ve error otherwise.
1066 * @key_free:
1067 * Notification of destruction; free security data.
1068 * @key points to the key.
1069 * No return value.
1070 * @key_permission:
1071 * See whether a specific operational right is granted to a process on a
Eric Paris7b41b172008-04-23 14:10:25 -04001072 * key.
David Howells29db9192005-10-30 15:02:44 -08001073 * @key_ref refers to the key (key pointer + possession attribute bit).
David Howellsd84f4f92008-11-14 10:39:23 +11001074 * @cred points to the credentials to provide the context against which to
Eric Paris7b41b172008-04-23 14:10:25 -04001075 * evaluate the security data on the key.
David Howells29db9192005-10-30 15:02:44 -08001076 * @perm describes the combination of permissions required of this key.
Tetsuo Handaad9c2b02010-11-30 11:06:47 +09001077 * Return 0 if permission is granted, -ve error otherwise.
David Howells70a5bb72008-04-29 01:01:26 -07001078 * @key_getsecurity:
1079 * Get a textual representation of the security context attached to a key
1080 * for the purposes of honouring KEYCTL_GETSECURITY. This function
1081 * allocates the storage for the NUL-terminated string and the caller
1082 * should free it.
1083 * @key points to the key to be queried.
1084 * @_buffer points to a pointer that should be set to point to the
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -07001085 * resulting string (if no label or an error occurs).
David Howells70a5bb72008-04-29 01:01:26 -07001086 * Return the length of the string (including terminating NUL) or -ve if
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -07001087 * an error.
David Howells70a5bb72008-04-29 01:01:26 -07001088 * May also return 0 (and a NULL buffer pointer) if there is no label.
David Howells29db9192005-10-30 15:02:44 -08001089 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090 * Security hooks affecting all System V IPC operations.
1091 *
1092 * @ipc_permission:
1093 * Check permissions for access to IPC
1094 * @ipcp contains the kernel IPC permission structure
1095 * @flag contains the desired (requested) permission set
1096 * Return 0 if permission is granted.
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001097 * @ipc_getsecid:
1098 * Get the secid associated with the ipc object.
1099 * @ipcp contains the kernel IPC permission structure.
1100 * @secid contains a pointer to the location where result will be saved.
1101 * In case of failure, @secid will be set to zero.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102 *
1103 * Security hooks for individual messages held in System V IPC message queues
1104 * @msg_msg_alloc_security:
1105 * Allocate and attach a security structure to the msg->security field.
1106 * The security field is initialized to NULL when the structure is first
1107 * created.
1108 * @msg contains the message structure to be modified.
1109 * Return 0 if operation was successful and permission is granted.
1110 * @msg_msg_free_security:
1111 * Deallocate the security structure for this message.
1112 * @msg contains the message structure to be modified.
1113 *
1114 * Security hooks for System V IPC Message Queues
1115 *
1116 * @msg_queue_alloc_security:
1117 * Allocate and attach a security structure to the
1118 * msq->q_perm.security field. The security field is initialized to
1119 * NULL when the structure is first created.
1120 * @msq contains the message queue structure to be modified.
1121 * Return 0 if operation was successful and permission is granted.
1122 * @msg_queue_free_security:
1123 * Deallocate security structure for this message queue.
1124 * @msq contains the message queue structure to be modified.
1125 * @msg_queue_associate:
1126 * Check permission when a message queue is requested through the
1127 * msgget system call. This hook is only called when returning the
1128 * message queue identifier for an existing message queue, not when a
1129 * new message queue is created.
1130 * @msq contains the message queue to act upon.
1131 * @msqflg contains the operation control flags.
1132 * Return 0 if permission is granted.
1133 * @msg_queue_msgctl:
1134 * Check permission when a message control operation specified by @cmd
1135 * is to be performed on the message queue @msq.
1136 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1137 * @msq contains the message queue to act upon. May be NULL.
1138 * @cmd contains the operation to be performed.
Eric Paris7b41b172008-04-23 14:10:25 -04001139 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001140 * @msg_queue_msgsnd:
1141 * Check permission before a message, @msg, is enqueued on the message
1142 * queue, @msq.
1143 * @msq contains the message queue to send message to.
1144 * @msg contains the message to be enqueued.
1145 * @msqflg contains operational flags.
1146 * Return 0 if permission is granted.
1147 * @msg_queue_msgrcv:
1148 * Check permission before a message, @msg, is removed from the message
Eric Paris7b41b172008-04-23 14:10:25 -04001149 * queue, @msq. The @target task structure contains a pointer to the
1150 * process that will be receiving the message (not equal to the current
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 * process when inline receives are being performed).
1152 * @msq contains the message queue to retrieve message from.
1153 * @msg contains the message destination.
1154 * @target contains the task structure for recipient process.
1155 * @type contains the type of message requested.
1156 * @mode contains the operational flags.
1157 * Return 0 if permission is granted.
1158 *
1159 * Security hooks for System V Shared Memory Segments
1160 *
1161 * @shm_alloc_security:
1162 * Allocate and attach a security structure to the shp->shm_perm.security
1163 * field. The security field is initialized to NULL when the structure is
1164 * first created.
1165 * @shp contains the shared memory structure to be modified.
1166 * Return 0 if operation was successful and permission is granted.
1167 * @shm_free_security:
1168 * Deallocate the security struct for this memory segment.
1169 * @shp contains the shared memory structure to be modified.
1170 * @shm_associate:
1171 * Check permission when a shared memory region is requested through the
1172 * shmget system call. This hook is only called when returning the shared
1173 * memory region identifier for an existing region, not when a new shared
1174 * memory region is created.
1175 * @shp contains the shared memory structure to be modified.
1176 * @shmflg contains the operation control flags.
1177 * Return 0 if permission is granted.
1178 * @shm_shmctl:
1179 * Check permission when a shared memory control operation specified by
1180 * @cmd is to be performed on the shared memory region @shp.
1181 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1182 * @shp contains shared memory structure to be modified.
1183 * @cmd contains the operation to be performed.
1184 * Return 0 if permission is granted.
1185 * @shm_shmat:
1186 * Check permissions prior to allowing the shmat system call to attach the
1187 * shared memory segment @shp to the data segment of the calling process.
1188 * The attaching address is specified by @shmaddr.
1189 * @shp contains the shared memory structure to be modified.
1190 * @shmaddr contains the address to attach memory region to.
1191 * @shmflg contains the operational flags.
1192 * Return 0 if permission is granted.
1193 *
1194 * Security hooks for System V Semaphores
1195 *
1196 * @sem_alloc_security:
1197 * Allocate and attach a security structure to the sma->sem_perm.security
1198 * field. The security field is initialized to NULL when the structure is
1199 * first created.
1200 * @sma contains the semaphore structure
1201 * Return 0 if operation was successful and permission is granted.
1202 * @sem_free_security:
1203 * deallocate security struct for this semaphore
1204 * @sma contains the semaphore structure.
1205 * @sem_associate:
1206 * Check permission when a semaphore is requested through the semget
1207 * system call. This hook is only called when returning the semaphore
1208 * identifier for an existing semaphore, not when a new one must be
1209 * created.
1210 * @sma contains the semaphore structure.
1211 * @semflg contains the operation control flags.
1212 * Return 0 if permission is granted.
1213 * @sem_semctl:
1214 * Check permission when a semaphore operation specified by @cmd is to be
Eric Paris7b41b172008-04-23 14:10:25 -04001215 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216 * IPC_INFO or SEM_INFO.
1217 * @sma contains the semaphore structure. May be NULL.
1218 * @cmd contains the operation to be performed.
1219 * Return 0 if permission is granted.
1220 * @sem_semop
1221 * Check permissions before performing operations on members of the
Eric Paris7b41b172008-04-23 14:10:25 -04001222 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1223 * may be modified.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001224 * @sma contains the semaphore structure.
1225 * @sops contains the operations to perform.
1226 * @nsops contains the number of operations to perform.
1227 * @alter contains the flag indicating whether changes are to be made.
1228 * Return 0 if permission is granted.
1229 *
Ingo Molnar9e488582009-05-07 19:26:19 +10001230 * @ptrace_access_check:
David Howells5cd9c582008-08-14 11:37:28 +01001231 * Check permission before allowing the current process to trace the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232 * @child process.
1233 * Security modules may also want to perform a process tracing check
1234 * during an execve in the set_security or apply_creds hooks of
David Howellsd84f4f92008-11-14 10:39:23 +11001235 * tracing check during an execve in the bprm_set_creds hook of
Linus Torvalds1da177e2005-04-16 15:20:36 -07001236 * binprm_security_ops if the process is being traced and its security
1237 * attributes would be changed by the execve.
David Howells5cd9c582008-08-14 11:37:28 +01001238 * @child contains the task_struct structure for the target process.
Stephen Smalley006ebb42008-05-19 08:32:49 -04001239 * @mode contains the PTRACE_MODE flags indicating the form of access.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240 * Return 0 if permission is granted.
David Howells5cd9c582008-08-14 11:37:28 +01001241 * @ptrace_traceme:
1242 * Check that the @parent process has sufficient permission to trace the
1243 * current process before allowing the current process to present itself
1244 * to the @parent process for tracing.
Ingo Molnar9e488582009-05-07 19:26:19 +10001245 * The parent process will still have to undergo the ptrace_access_check
David Howells5cd9c582008-08-14 11:37:28 +01001246 * checks before it is allowed to trace this one.
1247 * @parent contains the task_struct structure for debugger process.
1248 * Return 0 if permission is granted.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249 * @capget:
1250 * Get the @effective, @inheritable, and @permitted capability sets for
1251 * the @target process. The hook may also perform permission checking to
1252 * determine if the current process is allowed to see the capability sets
1253 * of the @target process.
1254 * @target contains the task_struct structure for target process.
1255 * @effective contains the effective capability set.
1256 * @inheritable contains the inheritable capability set.
1257 * @permitted contains the permitted capability set.
1258 * Return 0 if the capability sets were successfully obtained.
David Howellsd84f4f92008-11-14 10:39:23 +11001259 * @capset:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260 * Set the @effective, @inheritable, and @permitted capability sets for
David Howells1cdcbec2008-11-14 10:39:14 +11001261 * the current process.
David Howellsd84f4f92008-11-14 10:39:23 +11001262 * @new contains the new credentials structure for target process.
1263 * @old contains the current credentials structure for target process.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264 * @effective contains the effective capability set.
1265 * @inheritable contains the inheritable capability set.
1266 * @permitted contains the permitted capability set.
David Howellsd84f4f92008-11-14 10:39:23 +11001267 * Return 0 and update @new if permission is granted.
Chris Wright12b59892006-03-25 03:07:41 -08001268 * @capable:
David Howells3699c532009-01-06 22:27:01 +00001269 * Check whether the @tsk process has the @cap capability in the indicated
1270 * credentials.
David Howells3699c532009-01-06 22:27:01 +00001271 * @cred contains the credentials to use.
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -07001272 * @ns contains the user namespace we want the capability in
Chris Wright12b59892006-03-25 03:07:41 -08001273 * @cap contains the capability <include/linux/capability.h>.
David Howells3699c532009-01-06 22:27:01 +00001274 * @audit: Whether to write an audit message or not
Chris Wright12b59892006-03-25 03:07:41 -08001275 * Return 0 if the capability is granted for @tsk.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 * @syslog:
1277 * Check permission before accessing the kernel message ring or changing
1278 * logging to the console.
Eric Paris7b41b172008-04-23 14:10:25 -04001279 * See the syslog(2) manual page for an explanation of the @type values.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280 * @type contains the type of action.
Kees Cook00234592010-02-03 15:36:43 -08001281 * @from_file indicates the context of action (if it came from /proc).
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282 * Return 0 if permission is granted.
1283 * @settime:
1284 * Check permission to change the system time.
1285 * struct timespec and timezone are defined in include/linux/time.h
1286 * @ts contains new time
1287 * @tz contains new timezone
1288 * Return 0 if permission is granted.
1289 * @vm_enough_memory:
1290 * Check permissions for allocating a new virtual mapping.
Alan Cox34b4e4a2007-08-22 14:01:28 -07001291 * @mm contains the mm struct it is being added to.
Eric Paris7b41b172008-04-23 14:10:25 -04001292 * @pages contains the number of pages.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293 * Return 0 if permission is granted.
1294 *
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001295 * @secid_to_secctx:
Eric Parisd5630b92010-10-13 16:24:48 -04001296 * Convert secid to security context. If secdata is NULL the length of
1297 * the result will be returned in seclen, but no secdata will be returned.
1298 * This does mean that the length could change between calls to check the
1299 * length and the next call which actually allocates and returns the secdata.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001300 * @secid contains the security ID.
1301 * @secdata contains the pointer that stores the converted security context.
Eric Parisd5630b92010-10-13 16:24:48 -04001302 * @seclen pointer which contains the length of the data
David Howells63cb3442008-01-15 23:47:35 +00001303 * @secctx_to_secid:
Eric Paris7b41b172008-04-23 14:10:25 -04001304 * Convert security context to secid.
1305 * @secid contains the pointer to the generated security ID.
1306 * @secdata contains the security context.
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001307 *
1308 * @release_secctx:
1309 * Release the security context.
1310 * @secdata contains the security context.
1311 * @seclen contains the length of the security context.
1312 *
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001313 * Security hooks for Audit
1314 *
1315 * @audit_rule_init:
1316 * Allocate and initialize an LSM audit rule structure.
1317 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1318 * @op contains the operator the rule uses.
1319 * @rulestr contains the context where the rule will be applied to.
1320 * @lsmrule contains a pointer to receive the result.
1321 * Return 0 if @lsmrule has been successfully set,
1322 * -EINVAL in case of an invalid rule.
1323 *
1324 * @audit_rule_known:
1325 * Specifies whether given @rule contains any fields related to current LSM.
1326 * @rule contains the audit rule of interest.
1327 * Return 1 in case of relation found, 0 otherwise.
1328 *
1329 * @audit_rule_match:
1330 * Determine if given @secid matches a rule previously approved
1331 * by @audit_rule_known.
1332 * @secid contains the security id in question.
1333 * @field contains the field which relates to current LSM.
1334 * @op contains the operator that will be used for matching.
1335 * @rule points to the audit rule that will be checked against.
1336 * @actx points to the audit context associated with the check.
1337 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1338 *
1339 * @audit_rule_free:
1340 * Deallocate the LSM audit rule structure previously allocated by
1341 * audit_rule_init.
1342 * @rule contains the allocated rule
1343 *
David P. Quigley1ee65e32009-09-03 14:25:57 -04001344 * @inode_notifysecctx:
1345 * Notify the security module of what the security context of an inode
1346 * should be. Initializes the incore security context managed by the
1347 * security module for this inode. Example usage: NFS client invokes
1348 * this hook to initialize the security context in its incore inode to the
1349 * value provided by the server for the file when the server returned the
1350 * file's attributes to the client.
1351 *
1352 * Must be called with inode->i_mutex locked.
1353 *
1354 * @inode we wish to set the security context of.
1355 * @ctx contains the string which we wish to set in the inode.
1356 * @ctxlen contains the length of @ctx.
1357 *
1358 * @inode_setsecctx:
1359 * Change the security context of an inode. Updates the
1360 * incore security context managed by the security module and invokes the
1361 * fs code as needed (via __vfs_setxattr_noperm) to update any backing
1362 * xattrs that represent the context. Example usage: NFS server invokes
1363 * this hook to change the security context in its incore inode and on the
1364 * backing filesystem to a value provided by the client on a SETATTR
1365 * operation.
1366 *
1367 * Must be called with inode->i_mutex locked.
1368 *
1369 * @dentry contains the inode we wish to set the security context of.
1370 * @ctx contains the string which we wish to set in the inode.
1371 * @ctxlen contains the length of @ctx.
1372 *
1373 * @inode_getsecctx:
Vsevolod Alekseev11be0b32011-11-05 02:35:28 -07001374 * Returns a string containing all relevant security context information
David P. Quigley1ee65e32009-09-03 14:25:57 -04001375 *
rongqing.li@windriver.comfc9ff9b2011-09-06 11:35:36 +08001376 * @inode we wish to get the security context of.
David P. Quigley1ee65e32009-09-03 14:25:57 -04001377 * @ctx is a pointer in which to place the allocated security context.
1378 * @ctxlen points to the place to put the length of @ctx.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 * This is the main security structure.
1380 */
1381struct security_operations {
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001382 char name[SECURITY_NAME_MAX + 1];
1383
Ingo Molnar9e488582009-05-07 19:26:19 +10001384 int (*ptrace_access_check) (struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001385 int (*ptrace_traceme) (struct task_struct *parent);
Eric Paris7b41b172008-04-23 14:10:25 -04001386 int (*capget) (struct task_struct *target,
1387 kernel_cap_t *effective,
1388 kernel_cap_t *inheritable, kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001389 int (*capset) (struct cred *new,
1390 const struct cred *old,
1391 const kernel_cap_t *effective,
1392 const kernel_cap_t *inheritable,
1393 const kernel_cap_t *permitted);
Eric Paris6a9de492012-01-03 12:25:14 -05001394 int (*capable) (const struct cred *cred, struct user_namespace *ns,
1395 int cap, int audit);
Eric Paris7b41b172008-04-23 14:10:25 -04001396 int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1397 int (*quota_on) (struct dentry *dentry);
Eric Paris12b30522010-11-15 18:36:29 -05001398 int (*syslog) (int type);
Richard Cochran1e6d7672011-02-01 13:50:58 +00001399 int (*settime) (const struct timespec *ts, const struct timezone *tz);
Alan Cox34b4e4a2007-08-22 14:01:28 -07001400 int (*vm_enough_memory) (struct mm_struct *mm, long pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401
David Howellsa6f76f22008-11-14 10:39:24 +11001402 int (*bprm_set_creds) (struct linux_binprm *bprm);
Eric Paris7b41b172008-04-23 14:10:25 -04001403 int (*bprm_check_security) (struct linux_binprm *bprm);
1404 int (*bprm_secureexec) (struct linux_binprm *bprm);
David Howellsa6f76f22008-11-14 10:39:24 +11001405 void (*bprm_committing_creds) (struct linux_binprm *bprm);
1406 void (*bprm_committed_creds) (struct linux_binprm *bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001407
Eric Paris7b41b172008-04-23 14:10:25 -04001408 int (*sb_alloc_security) (struct super_block *sb);
1409 void (*sb_free_security) (struct super_block *sb);
1410 int (*sb_copy_data) (char *orig, char *copy);
Eric Parisff36fe22011-03-03 16:09:14 -05001411 int (*sb_remount) (struct super_block *sb, void *data);
James Morris12204e22008-12-19 10:44:42 +11001412 int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001413 int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
David Howells726c3342006-06-23 02:02:58 -07001414 int (*sb_statfs) (struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001415 int (*sb_mount) (char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416 char *type, unsigned long flags, void *data);
Eric Paris7b41b172008-04-23 14:10:25 -04001417 int (*sb_umount) (struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001418 int (*sb_pivotroot) (struct path *old_path,
1419 struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001420 int (*sb_set_mnt_opts) (struct super_block *sb,
1421 struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001422 void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1423 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001424 int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001425
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001426#ifdef CONFIG_SECURITY_PATH
1427 int (*path_unlink) (struct path *dir, struct dentry *dentry);
Al Viro4572bef2011-11-21 14:56:21 -05001428 int (*path_mkdir) (struct path *dir, struct dentry *dentry, umode_t mode);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001429 int (*path_rmdir) (struct path *dir, struct dentry *dentry);
Al Viro04fc66e2011-11-21 14:58:38 -05001430 int (*path_mknod) (struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001431 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09001432 int (*path_truncate) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001433 int (*path_symlink) (struct path *dir, struct dentry *dentry,
1434 const char *old_name);
1435 int (*path_link) (struct dentry *old_dentry, struct path *new_dir,
1436 struct dentry *new_dentry);
1437 int (*path_rename) (struct path *old_dir, struct dentry *old_dentry,
1438 struct path *new_dir, struct dentry *new_dentry);
Al Virocdcf1162011-12-08 10:51:53 -05001439 int (*path_chmod) (struct path *path, umode_t mode);
Tetsuo Handa89eda062009-10-04 21:49:47 +09001440 int (*path_chown) (struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09001441 int (*path_chroot) (struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001442#endif
1443
Eric Paris7b41b172008-04-23 14:10:25 -04001444 int (*inode_alloc_security) (struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 void (*inode_free_security) (struct inode *inode);
Stephen Smalley5e41ff92005-09-09 13:01:35 -07001446 int (*inode_init_security) (struct inode *inode, struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -05001447 const struct qstr *qstr, char **name,
1448 void **value, size_t *len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449 int (*inode_create) (struct inode *dir,
Al Viro4acdaf22011-07-26 01:42:34 -04001450 struct dentry *dentry, umode_t mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451 int (*inode_link) (struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001452 struct inode *dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1454 int (*inode_symlink) (struct inode *dir,
Eric Paris7b41b172008-04-23 14:10:25 -04001455 struct dentry *dentry, const char *old_name);
Al Viro18bb1db2011-07-26 01:41:39 -04001456 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, umode_t mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1458 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
Al Viro1a67aaf2011-07-26 01:52:52 -04001459 umode_t mode, dev_t dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001461 struct inode *new_dir, struct dentry *new_dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462 int (*inode_readlink) (struct dentry *dentry);
1463 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
Al Viroe74f71e2011-06-20 19:38:15 -04001464 int (*inode_permission) (struct inode *inode, int mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1466 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001467 int (*inode_setxattr) (struct dentry *dentry, const char *name,
1468 const void *value, size_t size, int flags);
1469 void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1470 const void *value, size_t size, int flags);
1471 int (*inode_getxattr) (struct dentry *dentry, const char *name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 int (*inode_listxattr) (struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001473 int (*inode_removexattr) (struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001474 int (*inode_need_killpriv) (struct dentry *dentry);
1475 int (*inode_killpriv) (struct dentry *dentry);
Eric Paris7b41b172008-04-23 14:10:25 -04001476 int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1477 int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1478 int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1479 void (*inode_getsecid) (const struct inode *inode, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480
Eric Paris7b41b172008-04-23 14:10:25 -04001481 int (*file_permission) (struct file *file, int mask);
1482 int (*file_alloc_security) (struct file *file);
1483 void (*file_free_security) (struct file *file);
1484 int (*file_ioctl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485 unsigned long arg);
Al Viroe5467852012-05-30 13:30:51 -04001486 int (*mmap_addr) (unsigned long addr);
1487 int (*mmap_file) (struct file *file,
Eric Parised032182007-06-28 15:55:21 -04001488 unsigned long reqprot, unsigned long prot,
Al Viroe5467852012-05-30 13:30:51 -04001489 unsigned long flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001490 int (*file_mprotect) (struct vm_area_struct *vma,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491 unsigned long reqprot,
1492 unsigned long prot);
Eric Paris7b41b172008-04-23 14:10:25 -04001493 int (*file_lock) (struct file *file, unsigned int cmd);
1494 int (*file_fcntl) (struct file *file, unsigned int cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495 unsigned long arg);
Eric Paris7b41b172008-04-23 14:10:25 -04001496 int (*file_set_fowner) (struct file *file);
1497 int (*file_send_sigiotask) (struct task_struct *tsk,
1498 struct fown_struct *fown, int sig);
1499 int (*file_receive) (struct file *file);
Eric Paris83d49852012-04-04 13:45:40 -04001500 int (*file_open) (struct file *file, const struct cred *cred);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501
1502 int (*task_create) (unsigned long clone_flags);
Kees Cook1a2a4d02011-12-21 12:17:03 -08001503 void (*task_free) (struct task_struct *task);
David Howellsee18d642009-09-02 09:14:21 +01001504 int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001505 void (*cred_free) (struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001506 int (*cred_prepare)(struct cred *new, const struct cred *old,
1507 gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001508 void (*cred_transfer)(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001509 int (*kernel_act_as)(struct cred *new, u32 secid);
1510 int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001511 int (*kernel_module_request)(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001512 int (*task_fix_setuid) (struct cred *new, const struct cred *old,
1513 int flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001514 int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1515 int (*task_getpgid) (struct task_struct *p);
1516 int (*task_getsid) (struct task_struct *p);
1517 void (*task_getsecid) (struct task_struct *p, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001518 int (*task_setnice) (struct task_struct *p, int nice);
1519 int (*task_setioprio) (struct task_struct *p, int ioprio);
1520 int (*task_getioprio) (struct task_struct *p);
Jiri Slaby8fd00b42009-08-26 18:41:16 +02001521 int (*task_setrlimit) (struct task_struct *p, unsigned int resource,
1522 struct rlimit *new_rlim);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09001523 int (*task_setscheduler) (struct task_struct *p);
Eric Paris7b41b172008-04-23 14:10:25 -04001524 int (*task_getscheduler) (struct task_struct *p);
1525 int (*task_movememory) (struct task_struct *p);
1526 int (*task_kill) (struct task_struct *p,
1527 struct siginfo *info, int sig, u32 secid);
1528 int (*task_wait) (struct task_struct *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529 int (*task_prctl) (int option, unsigned long arg2,
1530 unsigned long arg3, unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11001531 unsigned long arg5);
Eric Paris7b41b172008-04-23 14:10:25 -04001532 void (*task_to_inode) (struct task_struct *p, struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533
Eric Paris7b41b172008-04-23 14:10:25 -04001534 int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001535 void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001536
Eric Paris7b41b172008-04-23 14:10:25 -04001537 int (*msg_msg_alloc_security) (struct msg_msg *msg);
1538 void (*msg_msg_free_security) (struct msg_msg *msg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001539
Eric Paris7b41b172008-04-23 14:10:25 -04001540 int (*msg_queue_alloc_security) (struct msg_queue *msq);
1541 void (*msg_queue_free_security) (struct msg_queue *msq);
1542 int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1543 int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1544 int (*msg_queue_msgsnd) (struct msg_queue *msq,
1545 struct msg_msg *msg, int msqflg);
1546 int (*msg_queue_msgrcv) (struct msg_queue *msq,
1547 struct msg_msg *msg,
1548 struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549 long type, int mode);
1550
Eric Paris7b41b172008-04-23 14:10:25 -04001551 int (*shm_alloc_security) (struct shmid_kernel *shp);
1552 void (*shm_free_security) (struct shmid_kernel *shp);
1553 int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1554 int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1555 int (*shm_shmat) (struct shmid_kernel *shp,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556 char __user *shmaddr, int shmflg);
1557
Eric Paris7b41b172008-04-23 14:10:25 -04001558 int (*sem_alloc_security) (struct sem_array *sma);
1559 void (*sem_free_security) (struct sem_array *sma);
1560 int (*sem_associate) (struct sem_array *sma, int semflg);
1561 int (*sem_semctl) (struct sem_array *sma, int cmd);
1562 int (*sem_semop) (struct sem_array *sma,
1563 struct sembuf *sops, unsigned nsops, int alter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564
Eric Paris7b41b172008-04-23 14:10:25 -04001565 int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566
Linus Torvalds1da177e2005-04-16 15:20:36 -07001567 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1568
Eric Paris7b41b172008-04-23 14:10:25 -04001569 int (*getprocattr) (struct task_struct *p, char *name, char **value);
1570 int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1571 int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001572 int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001573 void (*release_secctx) (char *secdata, u32 seclen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001574
David P. Quigley1ee65e32009-09-03 14:25:57 -04001575 int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen);
1576 int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen);
1577 int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen);
1578
Linus Torvalds1da177e2005-04-16 15:20:36 -07001579#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -08001580 int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk);
Eric Paris7b41b172008-04-23 14:10:25 -04001581 int (*unix_may_send) (struct socket *sock, struct socket *other);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001582
1583 int (*socket_create) (int family, int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001584 int (*socket_post_create) (struct socket *sock, int family,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07001585 int type, int protocol, int kern);
Eric Paris7b41b172008-04-23 14:10:25 -04001586 int (*socket_bind) (struct socket *sock,
1587 struct sockaddr *address, int addrlen);
1588 int (*socket_connect) (struct socket *sock,
1589 struct sockaddr *address, int addrlen);
1590 int (*socket_listen) (struct socket *sock, int backlog);
1591 int (*socket_accept) (struct socket *sock, struct socket *newsock);
Eric Paris7b41b172008-04-23 14:10:25 -04001592 int (*socket_sendmsg) (struct socket *sock,
1593 struct msghdr *msg, int size);
1594 int (*socket_recvmsg) (struct socket *sock,
1595 struct msghdr *msg, int size, int flags);
1596 int (*socket_getsockname) (struct socket *sock);
1597 int (*socket_getpeername) (struct socket *sock);
1598 int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1599 int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1600 int (*socket_shutdown) (struct socket *sock, int how);
1601 int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -08001602 int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07001603 int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
Al Viro7d877f32005-10-21 03:20:43 -04001604 int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001605 void (*sk_free_security) (struct sock *sk);
Venkat Yekkirala892c1412006-08-04 23:08:56 -07001606 void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07001607 void (*sk_getsecid) (struct sock *sk, u32 *secid);
Eric Paris7b41b172008-04-23 14:10:25 -04001608 void (*sock_graft) (struct sock *sk, struct socket *parent);
1609 int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1610 struct request_sock *req);
1611 void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1612 void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
Eric Paris2606fd12010-10-13 16:24:41 -04001613 int (*secmark_relabel_packet) (u32 secid);
1614 void (*secmark_refcount_inc) (void);
1615 void (*secmark_refcount_dec) (void);
Eric Paris7b41b172008-04-23 14:10:25 -04001616 void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
Paul Moore2b980db2009-08-28 18:12:43 -04001617 int (*tun_dev_create)(void);
1618 void (*tun_dev_post_create)(struct sock *sk);
1619 int (*tun_dev_attach)(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001620#endif /* CONFIG_SECURITY_NETWORK */
David Howells29db9192005-10-30 15:02:44 -08001621
Trent Jaegerdf718372005-12-13 23:12:27 -08001622#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moore03e1ad72008-04-12 19:07:52 -07001623 int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001624 struct xfrm_user_sec_ctx *sec_ctx);
Paul Moore03e1ad72008-04-12 19:07:52 -07001625 int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1626 void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1627 int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001628 int (*xfrm_state_alloc_security) (struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -06001629 struct xfrm_user_sec_ctx *sec_ctx,
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07001630 u32 secid);
Trent Jaegerdf718372005-12-13 23:12:27 -08001631 void (*xfrm_state_free_security) (struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -07001632 int (*xfrm_state_delete_security) (struct xfrm_state *x);
Eric Paris7b41b172008-04-23 14:10:25 -04001633 int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1634 int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1635 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -08001636 const struct flowi *fl);
Eric Paris7b41b172008-04-23 14:10:25 -04001637 int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
Trent Jaegerdf718372005-12-13 23:12:27 -08001638#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1639
David Howells29db9192005-10-30 15:02:44 -08001640 /* key management security hooks */
1641#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +11001642 int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags);
Eric Paris7b41b172008-04-23 14:10:25 -04001643 void (*key_free) (struct key *key);
1644 int (*key_permission) (key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11001645 const struct cred *cred,
Eric Paris7b41b172008-04-23 14:10:25 -04001646 key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07001647 int (*key_getsecurity)(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08001648#endif /* CONFIG_KEYS */
1649
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001650#ifdef CONFIG_AUDIT
Eric Paris7b41b172008-04-23 14:10:25 -04001651 int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1652 int (*audit_rule_known) (struct audit_krule *krule);
1653 int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1654 struct audit_context *actx);
1655 void (*audit_rule_free) (void *lsmrule);
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001656#endif /* CONFIG_AUDIT */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001657};
1658
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659/* prototypes */
Eric Paris7b41b172008-04-23 14:10:25 -04001660extern int security_init(void);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +02001661extern int security_module_enable(struct security_operations *ops);
Eric Paris7b41b172008-04-23 14:10:25 -04001662extern int register_security(struct security_operations *ops);
James Morris5dbe3042011-08-30 13:48:53 +10001663extern void __init security_fixup_ops(struct security_operations *ops);
1664
Linus Torvalds1da177e2005-04-16 15:20:36 -07001665
James Morris20510f22007-10-16 23:31:32 -07001666/* Security operations */
Ingo Molnar9e488582009-05-07 19:26:19 +10001667int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
David Howells5cd9c582008-08-14 11:37:28 +01001668int security_ptrace_traceme(struct task_struct *parent);
James Morris20510f22007-10-16 23:31:32 -07001669int security_capget(struct task_struct *target,
Eric Paris7b41b172008-04-23 14:10:25 -04001670 kernel_cap_t *effective,
1671 kernel_cap_t *inheritable,
1672 kernel_cap_t *permitted);
David Howellsd84f4f92008-11-14 10:39:23 +11001673int security_capset(struct cred *new, const struct cred *old,
1674 const kernel_cap_t *effective,
1675 const kernel_cap_t *inheritable,
1676 const kernel_cap_t *permitted);
Eric Parisb7e724d2012-01-03 12:25:15 -05001677int security_capable(const struct cred *cred, struct user_namespace *ns,
Serge E. Hallyn34867402011-03-23 16:43:17 -07001678 int cap);
Eric Parisc7eba4a2012-01-03 12:25:15 -05001679int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
1680 int cap);
James Morris20510f22007-10-16 23:31:32 -07001681int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1682int security_quota_on(struct dentry *dentry);
Eric Paris12b30522010-11-15 18:36:29 -05001683int security_syslog(int type);
Richard Cochran1e6d7672011-02-01 13:50:58 +00001684int security_settime(const struct timespec *ts, const struct timezone *tz);
James Morris20510f22007-10-16 23:31:32 -07001685int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
David Howellsa6f76f22008-11-14 10:39:24 +11001686int security_bprm_set_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001687int security_bprm_check(struct linux_binprm *bprm);
David Howellsa6f76f22008-11-14 10:39:24 +11001688void security_bprm_committing_creds(struct linux_binprm *bprm);
1689void security_bprm_committed_creds(struct linux_binprm *bprm);
James Morris20510f22007-10-16 23:31:32 -07001690int security_bprm_secureexec(struct linux_binprm *bprm);
1691int security_sb_alloc(struct super_block *sb);
1692void security_sb_free(struct super_block *sb);
Eric Parise0007522008-03-05 10:31:54 -05001693int security_sb_copy_data(char *orig, char *copy);
Eric Parisff36fe22011-03-03 16:09:14 -05001694int security_sb_remount(struct super_block *sb, void *data);
James Morris12204e22008-12-19 10:44:42 +11001695int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
Eric Paris2069f452008-07-04 09:47:13 +10001696int security_sb_show_options(struct seq_file *m, struct super_block *sb);
James Morris20510f22007-10-16 23:31:32 -07001697int security_sb_statfs(struct dentry *dentry);
Al Virob5266eb2008-03-22 17:48:24 -04001698int security_sb_mount(char *dev_name, struct path *path,
Eric Paris7b41b172008-04-23 14:10:25 -04001699 char *type, unsigned long flags, void *data);
James Morris20510f22007-10-16 23:31:32 -07001700int security_sb_umount(struct vfsmount *mnt, int flags);
Al Virob5266eb2008-03-22 17:48:24 -04001701int security_sb_pivotroot(struct path *old_path, struct path *new_path);
Eric Parise0007522008-03-05 10:31:54 -05001702int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001703void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1704 struct super_block *newsb);
Eric Parise0007522008-03-05 10:31:54 -05001705int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
Eric Parisc9180a52007-11-30 13:00:35 -05001706
James Morris20510f22007-10-16 23:31:32 -07001707int security_inode_alloc(struct inode *inode);
1708void security_inode_free(struct inode *inode);
1709int security_inode_init_security(struct inode *inode, struct inode *dir,
Mimi Zohar9d8f13b2011-06-06 15:29:25 -04001710 const struct qstr *qstr,
1711 initxattrs initxattrs, void *fs_data);
1712int security_old_inode_init_security(struct inode *inode, struct inode *dir,
1713 const struct qstr *qstr, char **name,
1714 void **value, size_t *len);
Al Viro4acdaf22011-07-26 01:42:34 -04001715int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
James Morris20510f22007-10-16 23:31:32 -07001716int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1717 struct dentry *new_dentry);
1718int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1719int security_inode_symlink(struct inode *dir, struct dentry *dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001720 const char *old_name);
Al Viro18bb1db2011-07-26 01:41:39 -04001721int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
James Morris20510f22007-10-16 23:31:32 -07001722int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
Al Viro1a67aaf2011-07-26 01:52:52 -04001723int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
James Morris20510f22007-10-16 23:31:32 -07001724int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
Eric Paris7b41b172008-04-23 14:10:25 -04001725 struct inode *new_dir, struct dentry *new_dentry);
James Morris20510f22007-10-16 23:31:32 -07001726int security_inode_readlink(struct dentry *dentry);
1727int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
Al Virob77b0642008-07-17 09:37:02 -04001728int security_inode_permission(struct inode *inode, int mask);
James Morris20510f22007-10-16 23:31:32 -07001729int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1730int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001731int security_inode_setxattr(struct dentry *dentry, const char *name,
1732 const void *value, size_t size, int flags);
1733void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1734 const void *value, size_t size, int flags);
1735int security_inode_getxattr(struct dentry *dentry, const char *name);
James Morris20510f22007-10-16 23:31:32 -07001736int security_inode_listxattr(struct dentry *dentry);
David Howells8f0cfa52008-04-29 00:59:41 -07001737int security_inode_removexattr(struct dentry *dentry, const char *name);
Serge E. Hallynb5376772007-10-16 23:31:36 -07001738int security_inode_need_killpriv(struct dentry *dentry);
1739int security_inode_killpriv(struct dentry *dentry);
David P. Quigley42492592008-02-04 22:29:39 -08001740int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
James Morris20510f22007-10-16 23:31:32 -07001741int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1742int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001743void security_inode_getsecid(const struct inode *inode, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001744int security_file_permission(struct file *file, int mask);
1745int security_file_alloc(struct file *file);
1746void security_file_free(struct file *file);
1747int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
Al Viro8b3ec682012-05-30 17:11:23 -04001748int security_mmap_file(struct file *file, unsigned long prot,
1749 unsigned long flags);
Al Viroe5467852012-05-30 13:30:51 -04001750int security_mmap_addr(unsigned long addr);
James Morris20510f22007-10-16 23:31:32 -07001751int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
Eric Paris7b41b172008-04-23 14:10:25 -04001752 unsigned long prot);
James Morris20510f22007-10-16 23:31:32 -07001753int security_file_lock(struct file *file, unsigned int cmd);
1754int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1755int security_file_set_fowner(struct file *file);
1756int security_file_send_sigiotask(struct task_struct *tsk,
Eric Paris7b41b172008-04-23 14:10:25 -04001757 struct fown_struct *fown, int sig);
James Morris20510f22007-10-16 23:31:32 -07001758int security_file_receive(struct file *file);
Eric Paris83d49852012-04-04 13:45:40 -04001759int security_file_open(struct file *file, const struct cred *cred);
James Morris20510f22007-10-16 23:31:32 -07001760int security_task_create(unsigned long clone_flags);
Kees Cook1a2a4d02011-12-21 12:17:03 -08001761void security_task_free(struct task_struct *task);
David Howellsee18d642009-09-02 09:14:21 +01001762int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
David Howellsf1752ee2008-11-14 10:39:17 +11001763void security_cred_free(struct cred *cred);
David Howellsd84f4f92008-11-14 10:39:23 +11001764int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
David Howellsee18d642009-09-02 09:14:21 +01001765void security_transfer_creds(struct cred *new, const struct cred *old);
David Howells3a3b7ce2008-11-14 10:39:28 +11001766int security_kernel_act_as(struct cred *new, u32 secid);
1767int security_kernel_create_files_as(struct cred *new, struct inode *inode);
Eric Parisdd8dbf22009-11-03 16:35:32 +11001768int security_kernel_module_request(char *kmod_name);
David Howellsd84f4f92008-11-14 10:39:23 +11001769int security_task_fix_setuid(struct cred *new, const struct cred *old,
1770 int flags);
James Morris20510f22007-10-16 23:31:32 -07001771int security_task_setpgid(struct task_struct *p, pid_t pgid);
1772int security_task_getpgid(struct task_struct *p);
1773int security_task_getsid(struct task_struct *p);
1774void security_task_getsecid(struct task_struct *p, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001775int security_task_setnice(struct task_struct *p, int nice);
1776int security_task_setioprio(struct task_struct *p, int ioprio);
1777int security_task_getioprio(struct task_struct *p);
Jiri Slaby8fd00b42009-08-26 18:41:16 +02001778int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1779 struct rlimit *new_rlim);
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09001780int security_task_setscheduler(struct task_struct *p);
James Morris20510f22007-10-16 23:31:32 -07001781int security_task_getscheduler(struct task_struct *p);
1782int security_task_movememory(struct task_struct *p);
1783int security_task_kill(struct task_struct *p, struct siginfo *info,
1784 int sig, u32 secid);
1785int security_task_wait(struct task_struct *p);
1786int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +11001787 unsigned long arg4, unsigned long arg5);
James Morris20510f22007-10-16 23:31:32 -07001788void security_task_to_inode(struct task_struct *p, struct inode *inode);
1789int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02001790void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001791int security_msg_msg_alloc(struct msg_msg *msg);
1792void security_msg_msg_free(struct msg_msg *msg);
1793int security_msg_queue_alloc(struct msg_queue *msq);
1794void security_msg_queue_free(struct msg_queue *msq);
1795int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1796int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1797int security_msg_queue_msgsnd(struct msg_queue *msq,
Eric Paris7b41b172008-04-23 14:10:25 -04001798 struct msg_msg *msg, int msqflg);
James Morris20510f22007-10-16 23:31:32 -07001799int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
Eric Paris7b41b172008-04-23 14:10:25 -04001800 struct task_struct *target, long type, int mode);
James Morris20510f22007-10-16 23:31:32 -07001801int security_shm_alloc(struct shmid_kernel *shp);
1802void security_shm_free(struct shmid_kernel *shp);
1803int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1804int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1805int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1806int security_sem_alloc(struct sem_array *sma);
1807void security_sem_free(struct sem_array *sma);
1808int security_sem_associate(struct sem_array *sma, int semflg);
1809int security_sem_semctl(struct sem_array *sma, int cmd);
1810int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1811 unsigned nsops, int alter);
Eric Paris7b41b172008-04-23 14:10:25 -04001812void security_d_instantiate(struct dentry *dentry, struct inode *inode);
James Morris20510f22007-10-16 23:31:32 -07001813int security_getprocattr(struct task_struct *p, char *name, char **value);
1814int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1815int security_netlink_send(struct sock *sk, struct sk_buff *skb);
James Morris20510f22007-10-16 23:31:32 -07001816int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
David Howells7bf570d2008-04-29 20:52:51 +01001817int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
James Morris20510f22007-10-16 23:31:32 -07001818void security_release_secctx(char *secdata, u32 seclen);
1819
David P. Quigley1ee65e32009-09-03 14:25:57 -04001820int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
1821int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
1822int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823#else /* CONFIG_SECURITY */
Eric Parise0007522008-03-05 10:31:54 -05001824struct security_mnt_opts {
1825};
1826
1827static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1828{
1829}
1830
1831static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1832{
1833}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834
1835/*
1836 * This is the default capabilities functionality. Most of these functions
1837 * are just stubbed out, but a few must call the proper capable code.
1838 */
1839
1840static inline int security_init(void)
1841{
1842 return 0;
1843}
1844
Ingo Molnar9e488582009-05-07 19:26:19 +10001845static inline int security_ptrace_access_check(struct task_struct *child,
David Howells5cd9c582008-08-14 11:37:28 +01001846 unsigned int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847{
Ingo Molnar9e488582009-05-07 19:26:19 +10001848 return cap_ptrace_access_check(child, mode);
David Howells5cd9c582008-08-14 11:37:28 +01001849}
1850
Alexander Beregalov5e186b52008-08-17 05:34:20 +04001851static inline int security_ptrace_traceme(struct task_struct *parent)
David Howells5cd9c582008-08-14 11:37:28 +01001852{
1853 return cap_ptrace_traceme(parent);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854}
1855
Eric Paris7b41b172008-04-23 14:10:25 -04001856static inline int security_capget(struct task_struct *target,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857 kernel_cap_t *effective,
1858 kernel_cap_t *inheritable,
1859 kernel_cap_t *permitted)
1860{
Eric Paris7b41b172008-04-23 14:10:25 -04001861 return cap_capget(target, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862}
1863
David Howellsd84f4f92008-11-14 10:39:23 +11001864static inline int security_capset(struct cred *new,
1865 const struct cred *old,
1866 const kernel_cap_t *effective,
1867 const kernel_cap_t *inheritable,
1868 const kernel_cap_t *permitted)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001869{
David Howellsd84f4f92008-11-14 10:39:23 +11001870 return cap_capset(new, old, effective, inheritable, permitted);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001871}
1872
Eric Parisb7e724d2012-01-03 12:25:15 -05001873static inline int security_capable(const struct cred *cred,
1874 struct user_namespace *ns, int cap)
Chris Wright12b59892006-03-25 03:07:41 -08001875{
Eric Paris6a9de492012-01-03 12:25:14 -05001876 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
Eric Paris06112162008-11-11 22:02:50 +11001877}
1878
Eric Parisc7eba4a2012-01-03 12:25:15 -05001879static inline int security_capable_noaudit(const struct cred *cred,
1880 struct user_namespace *ns, int cap) {
1881 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
Chris Wright12b59892006-03-25 03:07:41 -08001882}
1883
Eric Paris7b41b172008-04-23 14:10:25 -04001884static inline int security_quotactl(int cmds, int type, int id,
1885 struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001886{
1887 return 0;
1888}
1889
Eric Paris7b41b172008-04-23 14:10:25 -04001890static inline int security_quota_on(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891{
1892 return 0;
1893}
1894
Eric Paris12b30522010-11-15 18:36:29 -05001895static inline int security_syslog(int type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896{
Eric Paris12b30522010-11-15 18:36:29 -05001897 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001898}
1899
Richard Cochran1e6d7672011-02-01 13:50:58 +00001900static inline int security_settime(const struct timespec *ts,
1901 const struct timezone *tz)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001902{
1903 return cap_settime(ts, tz);
1904}
1905
Alan Cox34b4e4a2007-08-22 14:01:28 -07001906static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1907{
1908 return cap_vm_enough_memory(mm, pages);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909}
1910
David Howellsa6f76f22008-11-14 10:39:24 +11001911static inline int security_bprm_set_creds(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001912{
David Howellsa6f76f22008-11-14 10:39:24 +11001913 return cap_bprm_set_creds(bprm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914}
1915
Eric Paris7b41b172008-04-23 14:10:25 -04001916static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001917{
1918 return 0;
1919}
1920
David Howellsa6f76f22008-11-14 10:39:24 +11001921static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
1922{
1923}
1924
1925static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
1926{
1927}
1928
Eric Paris7b41b172008-04-23 14:10:25 -04001929static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001930{
1931 return cap_bprm_secureexec(bprm);
1932}
1933
Eric Paris7b41b172008-04-23 14:10:25 -04001934static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001935{
1936 return 0;
1937}
1938
Eric Paris7b41b172008-04-23 14:10:25 -04001939static inline void security_sb_free(struct super_block *sb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001940{ }
1941
Eric Paris7b41b172008-04-23 14:10:25 -04001942static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001943{
1944 return 0;
1945}
1946
Eric Parisff36fe22011-03-03 16:09:14 -05001947static inline int security_sb_remount(struct super_block *sb, void *data)
1948{
1949 return 0;
1950}
1951
James Morris12204e22008-12-19 10:44:42 +11001952static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953{
1954 return 0;
1955}
1956
Eric Paris2069f452008-07-04 09:47:13 +10001957static inline int security_sb_show_options(struct seq_file *m,
1958 struct super_block *sb)
1959{
1960 return 0;
1961}
1962
Eric Paris7b41b172008-04-23 14:10:25 -04001963static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001964{
1965 return 0;
1966}
1967
Eric Paris7b41b172008-04-23 14:10:25 -04001968static inline int security_sb_mount(char *dev_name, struct path *path,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969 char *type, unsigned long flags,
1970 void *data)
1971{
1972 return 0;
1973}
1974
Eric Paris7b41b172008-04-23 14:10:25 -04001975static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001976{
1977 return 0;
1978}
1979
Eric Paris7b41b172008-04-23 14:10:25 -04001980static inline int security_sb_pivotroot(struct path *old_path,
1981 struct path *new_path)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001982{
1983 return 0;
1984}
1985
Eric Parise0007522008-03-05 10:31:54 -05001986static inline int security_sb_set_mnt_opts(struct super_block *sb,
1987 struct security_mnt_opts *opts)
1988{
1989 return 0;
1990}
1991
1992static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1993 struct super_block *newsb)
1994{ }
1995
1996static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
1997{
1998 return 0;
1999}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002000
Eric Paris7b41b172008-04-23 14:10:25 -04002001static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002{
2003 return 0;
2004}
2005
Eric Paris7b41b172008-04-23 14:10:25 -04002006static inline void security_inode_free(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002007{ }
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002008
Eric Paris7b41b172008-04-23 14:10:25 -04002009static inline int security_inode_init_security(struct inode *inode,
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002010 struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -05002011 const struct qstr *qstr,
Andrew Morton1933ca82011-11-15 15:11:44 -08002012 const initxattrs initxattrs,
Mimi Zohar9d8f13b2011-06-06 15:29:25 -04002013 void *fs_data)
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002014{
Mimi Zohar1e39f382011-08-15 09:09:16 -04002015 return 0;
Stephen Smalley5e41ff92005-09-09 13:01:35 -07002016}
Eric Paris7b41b172008-04-23 14:10:25 -04002017
Mimi Zohar1e39f382011-08-15 09:09:16 -04002018static inline int security_old_inode_init_security(struct inode *inode,
2019 struct inode *dir,
2020 const struct qstr *qstr,
2021 char **name, void **value,
2022 size_t *len)
Mimi Zohare1c9b232011-08-11 00:22:51 -04002023{
Jan Kara30e05322012-01-03 13:14:29 +01002024 return -EOPNOTSUPP;
Mimi Zohare1c9b232011-08-11 00:22:51 -04002025}
2026
Eric Paris7b41b172008-04-23 14:10:25 -04002027static inline int security_inode_create(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002028 struct dentry *dentry,
Al Viro4acdaf22011-07-26 01:42:34 -04002029 umode_t mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030{
2031 return 0;
2032}
2033
Eric Paris7b41b172008-04-23 14:10:25 -04002034static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035 struct inode *dir,
2036 struct dentry *new_dentry)
2037{
2038 return 0;
2039}
2040
Eric Paris7b41b172008-04-23 14:10:25 -04002041static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042 struct dentry *dentry)
2043{
2044 return 0;
2045}
2046
Eric Paris7b41b172008-04-23 14:10:25 -04002047static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002048 struct dentry *dentry,
2049 const char *old_name)
2050{
2051 return 0;
2052}
2053
Eric Paris7b41b172008-04-23 14:10:25 -04002054static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055 struct dentry *dentry,
2056 int mode)
2057{
2058 return 0;
2059}
2060
Eric Paris7b41b172008-04-23 14:10:25 -04002061static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062 struct dentry *dentry)
2063{
2064 return 0;
2065}
2066
Eric Paris7b41b172008-04-23 14:10:25 -04002067static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002068 struct dentry *dentry,
2069 int mode, dev_t dev)
2070{
2071 return 0;
2072}
2073
Eric Paris7b41b172008-04-23 14:10:25 -04002074static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075 struct dentry *old_dentry,
2076 struct inode *new_dir,
2077 struct dentry *new_dentry)
2078{
2079 return 0;
2080}
2081
Eric Paris7b41b172008-04-23 14:10:25 -04002082static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002083{
2084 return 0;
2085}
2086
Eric Paris7b41b172008-04-23 14:10:25 -04002087static inline int security_inode_follow_link(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088 struct nameidata *nd)
2089{
2090 return 0;
2091}
2092
Al Virob77b0642008-07-17 09:37:02 -04002093static inline int security_inode_permission(struct inode *inode, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002094{
2095 return 0;
2096}
2097
Eric Paris7b41b172008-04-23 14:10:25 -04002098static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099 struct iattr *attr)
2100{
2101 return 0;
2102}
2103
Eric Paris7b41b172008-04-23 14:10:25 -04002104static inline int security_inode_getattr(struct vfsmount *mnt,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105 struct dentry *dentry)
2106{
2107 return 0;
2108}
2109
David Howells8f0cfa52008-04-29 00:59:41 -07002110static inline int security_inode_setxattr(struct dentry *dentry,
2111 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112{
2113 return cap_inode_setxattr(dentry, name, value, size, flags);
2114}
2115
David Howells8f0cfa52008-04-29 00:59:41 -07002116static inline void security_inode_post_setxattr(struct dentry *dentry,
2117 const char *name, const void *value, size_t size, int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118{ }
2119
David Howells8f0cfa52008-04-29 00:59:41 -07002120static inline int security_inode_getxattr(struct dentry *dentry,
2121 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002122{
2123 return 0;
2124}
2125
Eric Paris7b41b172008-04-23 14:10:25 -04002126static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127{
2128 return 0;
2129}
2130
David Howells8f0cfa52008-04-29 00:59:41 -07002131static inline int security_inode_removexattr(struct dentry *dentry,
2132 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002133{
2134 return cap_inode_removexattr(dentry, name);
2135}
2136
Serge E. Hallynb5376772007-10-16 23:31:36 -07002137static inline int security_inode_need_killpriv(struct dentry *dentry)
2138{
2139 return cap_inode_need_killpriv(dentry);
2140}
2141
2142static inline int security_inode_killpriv(struct dentry *dentry)
2143{
2144 return cap_inode_killpriv(dentry);
2145}
2146
David P. Quigley42492592008-02-04 22:29:39 -08002147static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002148{
2149 return -EOPNOTSUPP;
2150}
2151
2152static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2153{
2154 return -EOPNOTSUPP;
2155}
2156
2157static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2158{
2159 return 0;
2160}
2161
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002162static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2163{
2164 *secid = 0;
2165}
2166
Eric Paris7b41b172008-04-23 14:10:25 -04002167static inline int security_file_permission(struct file *file, int mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168{
2169 return 0;
2170}
2171
Eric Paris7b41b172008-04-23 14:10:25 -04002172static inline int security_file_alloc(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173{
2174 return 0;
2175}
2176
Eric Paris7b41b172008-04-23 14:10:25 -04002177static inline void security_file_free(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178{ }
2179
Eric Paris7b41b172008-04-23 14:10:25 -04002180static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2181 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182{
2183 return 0;
2184}
2185
Al Viro8b3ec682012-05-30 17:11:23 -04002186static inline int security_mmap_file(struct file *file, unsigned long prot,
Al Viroe5467852012-05-30 13:30:51 -04002187 unsigned long flags)
2188{
2189 return 0;
2190}
2191
2192static inline int security_mmap_addr(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193{
Al Virod0077942012-05-30 13:11:37 -04002194 return cap_mmap_addr(addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002195}
2196
Eric Paris7b41b172008-04-23 14:10:25 -04002197static inline int security_file_mprotect(struct vm_area_struct *vma,
2198 unsigned long reqprot,
2199 unsigned long prot)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200{
2201 return 0;
2202}
2203
Eric Paris7b41b172008-04-23 14:10:25 -04002204static inline int security_file_lock(struct file *file, unsigned int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205{
2206 return 0;
2207}
2208
Eric Paris7b41b172008-04-23 14:10:25 -04002209static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2210 unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211{
2212 return 0;
2213}
2214
Eric Paris7b41b172008-04-23 14:10:25 -04002215static inline int security_file_set_fowner(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002216{
2217 return 0;
2218}
2219
Eric Paris7b41b172008-04-23 14:10:25 -04002220static inline int security_file_send_sigiotask(struct task_struct *tsk,
2221 struct fown_struct *fown,
2222 int sig)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002223{
2224 return 0;
2225}
2226
Eric Paris7b41b172008-04-23 14:10:25 -04002227static inline int security_file_receive(struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228{
2229 return 0;
2230}
2231
Eric Paris83d49852012-04-04 13:45:40 -04002232static inline int security_file_open(struct file *file,
2233 const struct cred *cred)
Yuichi Nakamura788e7dd2007-09-14 09:27:07 +09002234{
2235 return 0;
2236}
2237
Eric Paris7b41b172008-04-23 14:10:25 -04002238static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239{
2240 return 0;
2241}
2242
Kees Cook1a2a4d02011-12-21 12:17:03 -08002243static inline void security_task_free(struct task_struct *task)
2244{ }
2245
David Howells945af7c2009-09-04 09:19:48 +01002246static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
2247{
2248 return 0;
2249}
David Howellsee18d642009-09-02 09:14:21 +01002250
David Howellsd84f4f92008-11-14 10:39:23 +11002251static inline void security_cred_free(struct cred *cred)
2252{ }
2253
2254static inline int security_prepare_creds(struct cred *new,
2255 const struct cred *old,
2256 gfp_t gfp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257{
2258 return 0;
2259}
2260
David Howellsee18d642009-09-02 09:14:21 +01002261static inline void security_transfer_creds(struct cred *new,
2262 const struct cred *old)
2263{
2264}
2265
David Howells3a3b7ce2008-11-14 10:39:28 +11002266static inline int security_kernel_act_as(struct cred *cred, u32 secid)
2267{
2268 return 0;
2269}
2270
2271static inline int security_kernel_create_files_as(struct cred *cred,
2272 struct inode *inode)
2273{
2274 return 0;
2275}
2276
Eric Parisdd8dbf22009-11-03 16:35:32 +11002277static inline int security_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -04002278{
2279 return 0;
2280}
2281
David Howellsd84f4f92008-11-14 10:39:23 +11002282static inline int security_task_fix_setuid(struct cred *new,
2283 const struct cred *old,
2284 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002285{
David Howellsd84f4f92008-11-14 10:39:23 +11002286 return cap_task_fix_setuid(new, old, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287}
2288
Eric Paris7b41b172008-04-23 14:10:25 -04002289static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290{
2291 return 0;
2292}
2293
Eric Paris7b41b172008-04-23 14:10:25 -04002294static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295{
2296 return 0;
2297}
2298
Eric Paris7b41b172008-04-23 14:10:25 -04002299static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002300{
2301 return 0;
2302}
2303
Eric Paris7b41b172008-04-23 14:10:25 -04002304static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002305{
2306 *secid = 0;
2307}
David Quigleyf9008e42006-06-30 01:55:46 -07002308
Eric Paris7b41b172008-04-23 14:10:25 -04002309static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002310{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002311 return cap_task_setnice(p, nice);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002312}
2313
Eric Paris7b41b172008-04-23 14:10:25 -04002314static inline int security_task_setioprio(struct task_struct *p, int ioprio)
James Morris03e68062006-06-23 02:03:58 -07002315{
Serge E. Hallynb5376772007-10-16 23:31:36 -07002316 return cap_task_setioprio(p, ioprio);
James Morris03e68062006-06-23 02:03:58 -07002317}
2318
Eric Paris7b41b172008-04-23 14:10:25 -04002319static inline int security_task_getioprio(struct task_struct *p)
David Quigleya1836a42006-06-30 01:55:49 -07002320{
2321 return 0;
2322}
2323
Jiri Slaby8fd00b42009-08-26 18:41:16 +02002324static inline int security_task_setrlimit(struct task_struct *p,
2325 unsigned int resource,
Eric Paris7b41b172008-04-23 14:10:25 -04002326 struct rlimit *new_rlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327{
2328 return 0;
2329}
2330
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09002331static inline int security_task_setscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002332{
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +09002333 return cap_task_setscheduler(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002334}
2335
Eric Paris7b41b172008-04-23 14:10:25 -04002336static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002337{
2338 return 0;
2339}
2340
Eric Paris7b41b172008-04-23 14:10:25 -04002341static inline int security_task_movememory(struct task_struct *p)
David Quigley35601542006-06-23 02:04:01 -07002342{
2343 return 0;
2344}
2345
Eric Paris7b41b172008-04-23 14:10:25 -04002346static inline int security_task_kill(struct task_struct *p,
2347 struct siginfo *info, int sig,
2348 u32 secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002349{
Serge Hallynaedb60a2008-02-29 15:14:57 +00002350 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002351}
2352
Eric Paris7b41b172008-04-23 14:10:25 -04002353static inline int security_task_wait(struct task_struct *p)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002354{
2355 return 0;
2356}
2357
Eric Paris7b41b172008-04-23 14:10:25 -04002358static inline int security_task_prctl(int option, unsigned long arg2,
2359 unsigned long arg3,
2360 unsigned long arg4,
David Howellsd84f4f92008-11-14 10:39:23 +11002361 unsigned long arg5)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002362{
David Howellsd84f4f92008-11-14 10:39:23 +11002363 return cap_task_prctl(option, arg2, arg3, arg3, arg5);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002364}
2365
2366static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2367{ }
2368
Eric Paris7b41b172008-04-23 14:10:25 -04002369static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2370 short flag)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002371{
2372 return 0;
2373}
2374
Ahmed S. Darwish8a076192008-03-01 21:51:09 +02002375static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2376{
2377 *secid = 0;
2378}
2379
Eric Paris7b41b172008-04-23 14:10:25 -04002380static inline int security_msg_msg_alloc(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002381{
2382 return 0;
2383}
2384
Eric Paris7b41b172008-04-23 14:10:25 -04002385static inline void security_msg_msg_free(struct msg_msg *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002386{ }
2387
Eric Paris7b41b172008-04-23 14:10:25 -04002388static inline int security_msg_queue_alloc(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002389{
2390 return 0;
2391}
2392
Eric Paris7b41b172008-04-23 14:10:25 -04002393static inline void security_msg_queue_free(struct msg_queue *msq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002394{ }
2395
Eric Paris7b41b172008-04-23 14:10:25 -04002396static inline int security_msg_queue_associate(struct msg_queue *msq,
2397 int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002398{
2399 return 0;
2400}
2401
Eric Paris7b41b172008-04-23 14:10:25 -04002402static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002403{
2404 return 0;
2405}
2406
Eric Paris7b41b172008-04-23 14:10:25 -04002407static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2408 struct msg_msg *msg, int msqflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002409{
2410 return 0;
2411}
2412
Eric Paris7b41b172008-04-23 14:10:25 -04002413static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2414 struct msg_msg *msg,
2415 struct task_struct *target,
2416 long type, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002417{
2418 return 0;
2419}
2420
Eric Paris7b41b172008-04-23 14:10:25 -04002421static inline int security_shm_alloc(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002422{
2423 return 0;
2424}
2425
Eric Paris7b41b172008-04-23 14:10:25 -04002426static inline void security_shm_free(struct shmid_kernel *shp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002427{ }
2428
Eric Paris7b41b172008-04-23 14:10:25 -04002429static inline int security_shm_associate(struct shmid_kernel *shp,
2430 int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002431{
2432 return 0;
2433}
2434
Eric Paris7b41b172008-04-23 14:10:25 -04002435static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002436{
2437 return 0;
2438}
2439
Eric Paris7b41b172008-04-23 14:10:25 -04002440static inline int security_shm_shmat(struct shmid_kernel *shp,
2441 char __user *shmaddr, int shmflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002442{
2443 return 0;
2444}
2445
Eric Paris7b41b172008-04-23 14:10:25 -04002446static inline int security_sem_alloc(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002447{
2448 return 0;
2449}
2450
Eric Paris7b41b172008-04-23 14:10:25 -04002451static inline void security_sem_free(struct sem_array *sma)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002452{ }
2453
Eric Paris7b41b172008-04-23 14:10:25 -04002454static inline int security_sem_associate(struct sem_array *sma, int semflg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002455{
2456 return 0;
2457}
2458
Eric Paris7b41b172008-04-23 14:10:25 -04002459static inline int security_sem_semctl(struct sem_array *sma, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002460{
2461 return 0;
2462}
2463
Eric Paris7b41b172008-04-23 14:10:25 -04002464static inline int security_sem_semop(struct sem_array *sma,
2465 struct sembuf *sops, unsigned nsops,
2466 int alter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002467{
2468 return 0;
2469}
2470
Eric Paris7b41b172008-04-23 14:10:25 -04002471static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002472{ }
2473
Al Viro04ff9702007-03-12 16:17:58 +00002474static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002475{
2476 return -EINVAL;
2477}
2478
2479static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2480{
2481 return -EINVAL;
2482}
2483
Eric Paris7b41b172008-04-23 14:10:25 -04002484static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002485{
Eric Paris7b41b172008-04-23 14:10:25 -04002486 return cap_netlink_send(sk, skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002487}
2488
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002489static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2490{
2491 return -EOPNOTSUPP;
2492}
2493
David Howells7bf570d2008-04-29 20:52:51 +01002494static inline int security_secctx_to_secid(const char *secdata,
David Howells63cb3442008-01-15 23:47:35 +00002495 u32 seclen,
2496 u32 *secid)
2497{
2498 return -EOPNOTSUPP;
2499}
2500
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002501static inline void security_release_secctx(char *secdata, u32 seclen)
2502{
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002503}
David P. Quigley1ee65e32009-09-03 14:25:57 -04002504
2505static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
2506{
2507 return -EOPNOTSUPP;
2508}
2509static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
2510{
2511 return -EOPNOTSUPP;
2512}
2513static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
2514{
2515 return -EOPNOTSUPP;
2516}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002517#endif /* CONFIG_SECURITY */
2518
2519#ifdef CONFIG_SECURITY_NETWORK
Linus Torvalds1da177e2005-04-16 15:20:36 -07002520
David S. Miller3610cda2011-01-05 15:38:53 -08002521int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
James Morris20510f22007-10-16 23:31:32 -07002522int security_unix_may_send(struct socket *sock, struct socket *other);
2523int security_socket_create(int family, int type, int protocol, int kern);
2524int security_socket_post_create(struct socket *sock, int family,
2525 int type, int protocol, int kern);
2526int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2527int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2528int security_socket_listen(struct socket *sock, int backlog);
2529int security_socket_accept(struct socket *sock, struct socket *newsock);
James Morris20510f22007-10-16 23:31:32 -07002530int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2531int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2532 int size, int flags);
2533int security_socket_getsockname(struct socket *sock);
2534int security_socket_getpeername(struct socket *sock);
2535int security_socket_getsockopt(struct socket *sock, int level, int optname);
2536int security_socket_setsockopt(struct socket *sock, int level, int optname);
2537int security_socket_shutdown(struct socket *sock, int how);
2538int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2539int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2540 int __user *optlen, unsigned len);
2541int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2542int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2543void security_sk_free(struct sock *sk);
2544void security_sk_clone(const struct sock *sk, struct sock *newsk);
2545void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2546void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2547void security_sock_graft(struct sock*sk, struct socket *parent);
2548int security_inet_conn_request(struct sock *sk,
2549 struct sk_buff *skb, struct request_sock *req);
2550void security_inet_csk_clone(struct sock *newsk,
2551 const struct request_sock *req);
2552void security_inet_conn_established(struct sock *sk,
2553 struct sk_buff *skb);
Eric Paris2606fd12010-10-13 16:24:41 -04002554int security_secmark_relabel_packet(u32 secid);
2555void security_secmark_refcount_inc(void);
2556void security_secmark_refcount_dec(void);
Paul Moore2b980db2009-08-28 18:12:43 -04002557int security_tun_dev_create(void);
2558void security_tun_dev_post_create(struct sock *sk);
2559int security_tun_dev_attach(struct sock *sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002560
Linus Torvalds1da177e2005-04-16 15:20:36 -07002561#else /* CONFIG_SECURITY_NETWORK */
David S. Miller3610cda2011-01-05 15:38:53 -08002562static inline int security_unix_stream_connect(struct sock *sock,
2563 struct sock *other,
Eric Paris7b41b172008-04-23 14:10:25 -04002564 struct sock *newsk)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002565{
2566 return 0;
2567}
2568
Eric Paris7b41b172008-04-23 14:10:25 -04002569static inline int security_unix_may_send(struct socket *sock,
2570 struct socket *other)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002571{
2572 return 0;
2573}
2574
Eric Paris7b41b172008-04-23 14:10:25 -04002575static inline int security_socket_create(int family, int type,
2576 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002577{
2578 return 0;
2579}
2580
Eric Paris7b41b172008-04-23 14:10:25 -04002581static inline int security_socket_post_create(struct socket *sock,
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002582 int family,
2583 int type,
2584 int protocol, int kern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002585{
Venkat Yekkirala7420ed22006-08-04 23:17:57 -07002586 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002587}
2588
Eric Paris7b41b172008-04-23 14:10:25 -04002589static inline int security_socket_bind(struct socket *sock,
2590 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002591 int addrlen)
2592{
2593 return 0;
2594}
2595
Eric Paris7b41b172008-04-23 14:10:25 -04002596static inline int security_socket_connect(struct socket *sock,
2597 struct sockaddr *address,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002598 int addrlen)
2599{
2600 return 0;
2601}
2602
Eric Paris7b41b172008-04-23 14:10:25 -04002603static inline int security_socket_listen(struct socket *sock, int backlog)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002604{
2605 return 0;
2606}
2607
Eric Paris7b41b172008-04-23 14:10:25 -04002608static inline int security_socket_accept(struct socket *sock,
2609 struct socket *newsock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002610{
2611 return 0;
2612}
2613
Eric Paris7b41b172008-04-23 14:10:25 -04002614static inline int security_socket_sendmsg(struct socket *sock,
2615 struct msghdr *msg, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002616{
2617 return 0;
2618}
2619
Eric Paris7b41b172008-04-23 14:10:25 -04002620static inline int security_socket_recvmsg(struct socket *sock,
2621 struct msghdr *msg, int size,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002622 int flags)
2623{
2624 return 0;
2625}
2626
Eric Paris7b41b172008-04-23 14:10:25 -04002627static inline int security_socket_getsockname(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002628{
2629 return 0;
2630}
2631
Eric Paris7b41b172008-04-23 14:10:25 -04002632static inline int security_socket_getpeername(struct socket *sock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002633{
2634 return 0;
2635}
2636
Eric Paris7b41b172008-04-23 14:10:25 -04002637static inline int security_socket_getsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002638 int level, int optname)
2639{
2640 return 0;
2641}
2642
Eric Paris7b41b172008-04-23 14:10:25 -04002643static inline int security_socket_setsockopt(struct socket *sock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002644 int level, int optname)
2645{
2646 return 0;
2647}
2648
Eric Paris7b41b172008-04-23 14:10:25 -04002649static inline int security_socket_shutdown(struct socket *sock, int how)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002650{
2651 return 0;
2652}
Eric Paris7b41b172008-04-23 14:10:25 -04002653static inline int security_sock_rcv_skb(struct sock *sk,
2654 struct sk_buff *skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002655{
2656 return 0;
2657}
2658
Catherine Zhang2c7946a2006-03-20 22:41:23 -08002659static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2660 int __user *optlen, unsigned len)
2661{
2662 return -ENOPROTOOPT;
2663}
2664
Catherine Zhangdc49c1f2006-08-02 14:12:06 -07002665static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002666{
2667 return -ENOPROTOOPT;
2668}
2669
Al Virodd0fc662005-10-07 07:46:04 +01002670static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002671{
2672 return 0;
2673}
2674
2675static inline void security_sk_free(struct sock *sk)
2676{
2677}
Trent Jaegerdf718372005-12-13 23:12:27 -08002678
Venkat Yekkirala892c1412006-08-04 23:08:56 -07002679static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2680{
2681}
2682
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002683static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
Trent Jaegerdf718372005-12-13 23:12:27 -08002684{
Trent Jaegerdf718372005-12-13 23:12:27 -08002685}
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002686
2687static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2688{
2689}
2690
Eric Paris7b41b172008-04-23 14:10:25 -04002691static inline void security_sock_graft(struct sock *sk, struct socket *parent)
Venkat Yekkirala4237c752006-07-24 23:32:50 -07002692{
2693}
2694
2695static inline int security_inet_conn_request(struct sock *sk,
2696 struct sk_buff *skb, struct request_sock *req)
2697{
2698 return 0;
2699}
2700
2701static inline void security_inet_csk_clone(struct sock *newsk,
2702 const struct request_sock *req)
2703{
2704}
Venkat Yekkirala6b877692006-11-08 17:04:09 -06002705
2706static inline void security_inet_conn_established(struct sock *sk,
2707 struct sk_buff *skb)
2708{
2709}
Paul Moore2b980db2009-08-28 18:12:43 -04002710
Eric Paris2606fd12010-10-13 16:24:41 -04002711static inline int security_secmark_relabel_packet(u32 secid)
2712{
2713 return 0;
2714}
2715
2716static inline void security_secmark_refcount_inc(void)
2717{
2718}
2719
2720static inline void security_secmark_refcount_dec(void)
2721{
2722}
2723
Paul Moore2b980db2009-08-28 18:12:43 -04002724static inline int security_tun_dev_create(void)
2725{
2726 return 0;
2727}
2728
2729static inline void security_tun_dev_post_create(struct sock *sk)
2730{
2731}
2732
2733static inline int security_tun_dev_attach(struct sock *sk)
2734{
2735 return 0;
2736}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002737#endif /* CONFIG_SECURITY_NETWORK */
2738
Trent Jaegerdf718372005-12-13 23:12:27 -08002739#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralacb969f02006-07-24 23:32:20 -07002740
Paul Moore03e1ad72008-04-12 19:07:52 -07002741int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2742int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2743void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2744int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
James Morris20510f22007-10-16 23:31:32 -07002745int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2746int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2747 struct xfrm_sec_ctx *polsec, u32 secid);
2748int security_xfrm_state_delete(struct xfrm_state *x);
2749void security_xfrm_state_free(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -07002750int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
James Morris20510f22007-10-16 23:31:32 -07002751int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
David S. Millere33f7702011-02-22 18:13:15 -08002752 struct xfrm_policy *xp,
2753 const struct flowi *fl);
James Morris20510f22007-10-16 23:31:32 -07002754int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2755void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
Trent Jaegerdf718372005-12-13 23:12:27 -08002756
Trent Jaegerdf718372005-12-13 23:12:27 -08002757#else /* CONFIG_SECURITY_NETWORK_XFRM */
James Morris20510f22007-10-16 23:31:32 -07002758
Paul Moore03e1ad72008-04-12 19:07:52 -07002759static 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 -08002760{
2761 return 0;
2762}
2763
Paul Moore03e1ad72008-04-12 19:07:52 -07002764static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
Trent Jaegerdf718372005-12-13 23:12:27 -08002765{
2766 return 0;
2767}
2768
Paul Moore03e1ad72008-04-12 19:07:52 -07002769static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
Trent Jaegerdf718372005-12-13 23:12:27 -08002770{
2771}
2772
Paul Moore03e1ad72008-04-12 19:07:52 -07002773static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002774{
2775 return 0;
2776}
2777
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002778static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2779 struct xfrm_user_sec_ctx *sec_ctx)
2780{
2781 return 0;
2782}
2783
2784static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2785 struct xfrm_sec_ctx *polsec, u32 secid)
Trent Jaegerdf718372005-12-13 23:12:27 -08002786{
2787 return 0;
2788}
2789
2790static inline void security_xfrm_state_free(struct xfrm_state *x)
2791{
2792}
2793
David S. Miller6f68dc32006-06-08 23:58:52 -07002794static inline int security_xfrm_state_delete(struct xfrm_state *x)
Catherine Zhangc8c05a82006-06-08 23:39:49 -07002795{
2796 return 0;
2797}
2798
Paul Moore03e1ad72008-04-12 19:07:52 -07002799static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
Trent Jaegerdf718372005-12-13 23:12:27 -08002800{
2801 return 0;
2802}
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002803
2804static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
David S. Millere33f7702011-02-22 18:13:15 -08002805 struct xfrm_policy *xp, const struct flowi *fl)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002806{
2807 return 1;
2808}
2809
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002810static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -07002811{
2812 return 0;
2813}
2814
Venkat Yekkiralabeb8d132006-08-04 23:12:42 -07002815static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2816{
2817}
2818
Trent Jaegerdf718372005-12-13 23:12:27 -08002819#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2820
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002821#ifdef CONFIG_SECURITY_PATH
2822int security_path_unlink(struct path *dir, struct dentry *dentry);
Al Viro4572bef2011-11-21 14:56:21 -05002823int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002824int security_path_rmdir(struct path *dir, struct dentry *dentry);
Al Viro04fc66e2011-11-21 14:58:38 -05002825int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002826 unsigned int dev);
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002827int security_path_truncate(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002828int security_path_symlink(struct path *dir, struct dentry *dentry,
2829 const char *old_name);
2830int security_path_link(struct dentry *old_dentry, struct path *new_dir,
2831 struct dentry *new_dentry);
2832int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
2833 struct path *new_dir, struct dentry *new_dentry);
Al Virocdcf1162011-12-08 10:51:53 -05002834int security_path_chmod(struct path *path, umode_t mode);
Tetsuo Handa89eda062009-10-04 21:49:47 +09002835int security_path_chown(struct path *path, uid_t uid, gid_t gid);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002836int security_path_chroot(struct path *path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002837#else /* CONFIG_SECURITY_PATH */
2838static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
2839{
2840 return 0;
2841}
2842
2843static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
Al Viro4572bef2011-11-21 14:56:21 -05002844 umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002845{
2846 return 0;
2847}
2848
2849static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
2850{
2851 return 0;
2852}
2853
2854static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
Al Viro04fc66e2011-11-21 14:58:38 -05002855 umode_t mode, unsigned int dev)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002856{
2857 return 0;
2858}
2859
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +09002860static inline int security_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002861{
2862 return 0;
2863}
2864
2865static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
2866 const char *old_name)
2867{
2868 return 0;
2869}
2870
2871static inline int security_path_link(struct dentry *old_dentry,
2872 struct path *new_dir,
2873 struct dentry *new_dentry)
2874{
2875 return 0;
2876}
2877
2878static inline int security_path_rename(struct path *old_dir,
2879 struct dentry *old_dentry,
2880 struct path *new_dir,
2881 struct dentry *new_dentry)
2882{
2883 return 0;
2884}
Tetsuo Handa89eda062009-10-04 21:49:47 +09002885
Al Virocdcf1162011-12-08 10:51:53 -05002886static inline int security_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +09002887{
2888 return 0;
2889}
2890
2891static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid)
2892{
2893 return 0;
2894}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09002895
2896static inline int security_path_chroot(struct path *path)
2897{
2898 return 0;
2899}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09002900#endif /* CONFIG_SECURITY_PATH */
2901
David Howells29db9192005-10-30 15:02:44 -08002902#ifdef CONFIG_KEYS
2903#ifdef CONFIG_SECURITY
David Howells29db9192005-10-30 15:02:44 -08002904
David Howellsd84f4f92008-11-14 10:39:23 +11002905int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
James Morris20510f22007-10-16 23:31:32 -07002906void security_key_free(struct key *key);
2907int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002908 const struct cred *cred, key_perm_t perm);
David Howells70a5bb72008-04-29 01:01:26 -07002909int security_key_getsecurity(struct key *key, char **_buffer);
David Howells29db9192005-10-30 15:02:44 -08002910
2911#else
2912
Michael LeMayd7200242006-06-22 14:47:17 -07002913static inline int security_key_alloc(struct key *key,
David Howellsd84f4f92008-11-14 10:39:23 +11002914 const struct cred *cred,
David Howells7e047ef2006-06-26 00:24:50 -07002915 unsigned long flags)
David Howells29db9192005-10-30 15:02:44 -08002916{
2917 return 0;
2918}
2919
2920static inline void security_key_free(struct key *key)
2921{
2922}
2923
2924static inline int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11002925 const struct cred *cred,
David Howells29db9192005-10-30 15:02:44 -08002926 key_perm_t perm)
2927{
2928 return 0;
2929}
2930
David Howells70a5bb72008-04-29 01:01:26 -07002931static inline int security_key_getsecurity(struct key *key, char **_buffer)
2932{
2933 *_buffer = NULL;
2934 return 0;
2935}
2936
David Howells29db9192005-10-30 15:02:44 -08002937#endif
2938#endif /* CONFIG_KEYS */
2939
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02002940#ifdef CONFIG_AUDIT
2941#ifdef CONFIG_SECURITY
2942int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2943int security_audit_rule_known(struct audit_krule *krule);
2944int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2945 struct audit_context *actx);
2946void security_audit_rule_free(void *lsmrule);
2947
2948#else
2949
2950static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2951 void **lsmrule)
2952{
2953 return 0;
2954}
2955
2956static inline int security_audit_rule_known(struct audit_krule *krule)
2957{
2958 return 0;
2959}
2960
2961static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2962 void *lsmrule, struct audit_context *actx)
2963{
2964 return 0;
2965}
2966
2967static inline void security_audit_rule_free(void *lsmrule)
2968{ }
2969
2970#endif /* CONFIG_SECURITY */
2971#endif /* CONFIG_AUDIT */
2972
Eric Parisda318942008-08-22 11:35:57 -04002973#ifdef CONFIG_SECURITYFS
2974
Al Viro52ef0c02011-07-26 04:30:04 -04002975extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
Eric Parisda318942008-08-22 11:35:57 -04002976 struct dentry *parent, void *data,
2977 const struct file_operations *fops);
2978extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2979extern void securityfs_remove(struct dentry *dentry);
2980
2981#else /* CONFIG_SECURITYFS */
2982
2983static inline struct dentry *securityfs_create_dir(const char *name,
2984 struct dentry *parent)
2985{
2986 return ERR_PTR(-ENODEV);
2987}
2988
2989static inline struct dentry *securityfs_create_file(const char *name,
Al Viro52ef0c02011-07-26 04:30:04 -04002990 umode_t mode,
Eric Parisda318942008-08-22 11:35:57 -04002991 struct dentry *parent,
2992 void *data,
2993 const struct file_operations *fops)
2994{
2995 return ERR_PTR(-ENODEV);
2996}
2997
2998static inline void securityfs_remove(struct dentry *dentry)
2999{}
3000
3001#endif
3002
Pekka Enberg3d544f42009-03-24 11:59:23 +02003003#ifdef CONFIG_SECURITY
3004
3005static inline char *alloc_secdata(void)
3006{
3007 return (char *)get_zeroed_page(GFP_KERNEL);
3008}
3009
3010static inline void free_secdata(void *secdata)
3011{
3012 free_page((unsigned long)secdata);
3013}
3014
3015#else
3016
3017static inline char *alloc_secdata(void)
3018{
3019 return (char *)1;
3020}
3021
3022static inline void free_secdata(void *secdata)
3023{ }
3024#endif /* CONFIG_SECURITY */
3025
Linus Torvalds1da177e2005-04-16 15:20:36 -07003026#endif /* ! __LINUX_SECURITY_H */
3027