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1da177e4 LT |
1 | /* |
2 | * Linux Security plug | |
3 | * | |
4 | * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> | |
5 | * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com> | |
6 | * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> | |
7 | * Copyright (C) 2001 James Morris <jmorris@intercode.com.au> | |
8 | * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group) | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * Due to this file being licensed under the GPL there is controversy over | |
16 | * whether this permits you to write a module that #includes this file | |
17 | * without placing your module under the GPL. Please consult a lawyer for | |
18 | * advice before doing this. | |
19 | * | |
20 | */ | |
21 | ||
22 | #ifndef __LINUX_SECURITY_H | |
23 | #define __LINUX_SECURITY_H | |
24 | ||
25 | #include <linux/fs.h> | |
26 | #include <linux/binfmts.h> | |
27 | #include <linux/signal.h> | |
28 | #include <linux/resource.h> | |
29 | #include <linux/sem.h> | |
30 | #include <linux/shm.h> | |
a2551df7 | 31 | #include <linux/mm.h> /* PAGE_ALIGN */ |
1da177e4 LT |
32 | #include <linux/msg.h> |
33 | #include <linux/sched.h> | |
29db9190 | 34 | #include <linux/key.h> |
e0d1caa7 | 35 | #include <linux/xfrm.h> |
5a0e3ad6 | 36 | #include <linux/slab.h> |
beb8d13b | 37 | #include <net/flow.h> |
1da177e4 | 38 | |
076c54c5 AD |
39 | /* Maximum number of letters for an LSM name string */ |
40 | #define SECURITY_NAME_MAX 10 | |
41 | ||
06112163 EP |
42 | /* If capable should audit the security request */ |
43 | #define SECURITY_CAP_NOAUDIT 0 | |
44 | #define SECURITY_CAP_AUDIT 1 | |
45 | ||
1da177e4 | 46 | struct ctl_table; |
03d37d25 | 47 | struct audit_krule; |
1da177e4 LT |
48 | |
49 | /* | |
50 | * These functions are in security/capability.c and are used | |
51 | * as the default capabilities functions | |
52 | */ | |
3699c53c DH |
53 | extern int cap_capable(struct task_struct *tsk, const struct cred *cred, |
54 | int cap, int audit); | |
7b41b173 | 55 | extern int cap_settime(struct timespec *ts, struct timezone *tz); |
9e48858f | 56 | extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 57 | extern int cap_ptrace_traceme(struct task_struct *parent); |
7b41b173 | 58 | extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); |
d84f4f99 DH |
59 | extern int cap_capset(struct cred *new, const struct cred *old, |
60 | const kernel_cap_t *effective, | |
61 | const kernel_cap_t *inheritable, | |
62 | const kernel_cap_t *permitted); | |
a6f76f23 | 63 | extern int cap_bprm_set_creds(struct linux_binprm *bprm); |
1da177e4 | 64 | extern int cap_bprm_secureexec(struct linux_binprm *bprm); |
8f0cfa52 DH |
65 | extern int cap_inode_setxattr(struct dentry *dentry, const char *name, |
66 | const void *value, size_t size, int flags); | |
67 | extern int cap_inode_removexattr(struct dentry *dentry, const char *name); | |
b5376771 SH |
68 | extern int cap_inode_need_killpriv(struct dentry *dentry); |
69 | extern int cap_inode_killpriv(struct dentry *dentry); | |
7c73875e EP |
70 | extern int cap_file_mmap(struct file *file, unsigned long reqprot, |
71 | unsigned long prot, unsigned long flags, | |
72 | unsigned long addr, unsigned long addr_only); | |
d84f4f99 | 73 | extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); |
3898b1b4 | 74 | extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 75 | unsigned long arg4, unsigned long arg5); |
7b41b173 EP |
76 | extern int cap_task_setscheduler(struct task_struct *p, int policy, struct sched_param *lp); |
77 | extern int cap_task_setioprio(struct task_struct *p, int ioprio); | |
78 | extern int cap_task_setnice(struct task_struct *p, int nice); | |
00234592 | 79 | extern int cap_syslog(int type, bool from_file); |
20510f2f | 80 | extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); |
1da177e4 LT |
81 | |
82 | struct msghdr; | |
83 | struct sk_buff; | |
84 | struct sock; | |
85 | struct sockaddr; | |
86 | struct socket; | |
df71837d TJ |
87 | struct flowi; |
88 | struct dst_entry; | |
89 | struct xfrm_selector; | |
90 | struct xfrm_policy; | |
91 | struct xfrm_state; | |
92 | struct xfrm_user_sec_ctx; | |
2069f457 | 93 | struct seq_file; |
1da177e4 LT |
94 | |
95 | extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb); | |
c7bdb545 | 96 | extern int cap_netlink_recv(struct sk_buff *skb, int cap); |
1da177e4 | 97 | |
189b3b1c | 98 | void reset_security_ops(void); |
99 | ||
6e141546 | 100 | #ifdef CONFIG_MMU |
ed032189 | 101 | extern unsigned long mmap_min_addr; |
a2551df7 | 102 | extern unsigned long dac_mmap_min_addr; |
6e141546 DH |
103 | #else |
104 | #define dac_mmap_min_addr 0UL | |
105 | #endif | |
106 | ||
1da177e4 LT |
107 | /* |
108 | * Values used in the task_security_ops calls | |
109 | */ | |
110 | /* setuid or setgid, id0 == uid or gid */ | |
111 | #define LSM_SETID_ID 1 | |
112 | ||
113 | /* setreuid or setregid, id0 == real, id1 == eff */ | |
114 | #define LSM_SETID_RE 2 | |
115 | ||
116 | /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ | |
117 | #define LSM_SETID_RES 4 | |
118 | ||
119 | /* setfsuid or setfsgid, id0 == fsuid or fsgid */ | |
120 | #define LSM_SETID_FS 8 | |
121 | ||
122 | /* forward declares to avoid warnings */ | |
1da177e4 | 123 | struct sched_param; |
4237c75c | 124 | struct request_sock; |
1da177e4 | 125 | |
a6f76f23 | 126 | /* bprm->unsafe reasons */ |
1da177e4 LT |
127 | #define LSM_UNSAFE_SHARE 1 |
128 | #define LSM_UNSAFE_PTRACE 2 | |
129 | #define LSM_UNSAFE_PTRACE_CAP 4 | |
130 | ||
6e141546 | 131 | #ifdef CONFIG_MMU |
47d439e9 EP |
132 | /* |
133 | * If a hint addr is less than mmap_min_addr change hint to be as | |
134 | * low as possible but still greater than mmap_min_addr | |
135 | */ | |
136 | static inline unsigned long round_hint_to_min(unsigned long hint) | |
137 | { | |
138 | hint &= PAGE_MASK; | |
139 | if (((void *)hint != NULL) && | |
140 | (hint < mmap_min_addr)) | |
141 | return PAGE_ALIGN(mmap_min_addr); | |
142 | return hint; | |
143 | } | |
8d65af78 | 144 | extern int mmap_min_addr_handler(struct ctl_table *table, int write, |
47d439e9 | 145 | void __user *buffer, size_t *lenp, loff_t *ppos); |
6e141546 | 146 | #endif |
47d439e9 | 147 | |
1da177e4 LT |
148 | #ifdef CONFIG_SECURITY |
149 | ||
e0007529 EP |
150 | struct security_mnt_opts { |
151 | char **mnt_opts; | |
152 | int *mnt_opts_flags; | |
153 | int num_mnt_opts; | |
154 | }; | |
155 | ||
156 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
157 | { | |
158 | opts->mnt_opts = NULL; | |
159 | opts->mnt_opts_flags = NULL; | |
160 | opts->num_mnt_opts = 0; | |
161 | } | |
162 | ||
163 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
164 | { | |
165 | int i; | |
166 | if (opts->mnt_opts) | |
7b41b173 | 167 | for (i = 0; i < opts->num_mnt_opts; i++) |
e0007529 EP |
168 | kfree(opts->mnt_opts[i]); |
169 | kfree(opts->mnt_opts); | |
170 | opts->mnt_opts = NULL; | |
171 | kfree(opts->mnt_opts_flags); | |
172 | opts->mnt_opts_flags = NULL; | |
173 | opts->num_mnt_opts = 0; | |
174 | } | |
175 | ||
1da177e4 LT |
176 | /** |
177 | * struct security_operations - main security structure | |
178 | * | |
076c54c5 AD |
179 | * Security module identifier. |
180 | * | |
181 | * @name: | |
182 | * A string that acts as a unique identifeir for the LSM with max number | |
183 | * of characters = SECURITY_NAME_MAX. | |
184 | * | |
1da177e4 LT |
185 | * Security hooks for program execution operations. |
186 | * | |
a6f76f23 | 187 | * @bprm_set_creds: |
1da177e4 LT |
188 | * Save security information in the bprm->security field, typically based |
189 | * on information about the bprm->file, for later use by the apply_creds | |
190 | * hook. This hook may also optionally check permissions (e.g. for | |
191 | * transitions between security domains). | |
192 | * This hook may be called multiple times during a single execve, e.g. for | |
193 | * interpreters. The hook can tell whether it has already been called by | |
194 | * checking to see if @bprm->security is non-NULL. If so, then the hook | |
195 | * may decide either to retain the security information saved earlier or | |
196 | * to replace it. | |
197 | * @bprm contains the linux_binprm structure. | |
198 | * Return 0 if the hook is successful and permission is granted. | |
199 | * @bprm_check_security: | |
a6f76f23 DH |
200 | * This hook mediates the point when a search for a binary handler will |
201 | * begin. It allows a check the @bprm->security value which is set in the | |
202 | * preceding set_creds call. The primary difference from set_creds is | |
203 | * that the argv list and envp list are reliably available in @bprm. This | |
204 | * hook may be called multiple times during a single execve; and in each | |
205 | * pass set_creds is called first. | |
7b41b173 | 206 | * @bprm contains the linux_binprm structure. |
1da177e4 | 207 | * Return 0 if the hook is successful and permission is granted. |
a6f76f23 DH |
208 | * @bprm_committing_creds: |
209 | * Prepare to install the new security attributes of a process being | |
210 | * transformed by an execve operation, based on the old credentials | |
211 | * pointed to by @current->cred and the information set in @bprm->cred by | |
212 | * the bprm_set_creds hook. @bprm points to the linux_binprm structure. | |
213 | * This hook is a good place to perform state changes on the process such | |
214 | * as closing open file descriptors to which access will no longer be | |
215 | * granted when the attributes are changed. This is called immediately | |
216 | * before commit_creds(). | |
217 | * @bprm_committed_creds: | |
218 | * Tidy up after the installation of the new security attributes of a | |
219 | * process being transformed by an execve operation. The new credentials | |
220 | * have, by this point, been set to @current->cred. @bprm points to the | |
221 | * linux_binprm structure. This hook is a good place to perform state | |
222 | * changes on the process such as clearing out non-inheritable signal | |
223 | * state. This is called immediately after commit_creds(). | |
1da177e4 | 224 | * @bprm_secureexec: |
7b41b173 EP |
225 | * Return a boolean value (0 or 1) indicating whether a "secure exec" |
226 | * is required. The flag is passed in the auxiliary table | |
227 | * on the initial stack to the ELF interpreter to indicate whether libc | |
228 | * should enable secure mode. | |
229 | * @bprm contains the linux_binprm structure. | |
1da177e4 LT |
230 | * |
231 | * Security hooks for filesystem operations. | |
232 | * | |
233 | * @sb_alloc_security: | |
234 | * Allocate and attach a security structure to the sb->s_security field. | |
235 | * The s_security field is initialized to NULL when the structure is | |
236 | * allocated. | |
237 | * @sb contains the super_block structure to be modified. | |
238 | * Return 0 if operation was successful. | |
239 | * @sb_free_security: | |
240 | * Deallocate and clear the sb->s_security field. | |
241 | * @sb contains the super_block structure to be modified. | |
242 | * @sb_statfs: | |
726c3342 DH |
243 | * Check permission before obtaining filesystem statistics for the @mnt |
244 | * mountpoint. | |
245 | * @dentry is a handle on the superblock for the filesystem. | |
7b41b173 | 246 | * Return 0 if permission is granted. |
1da177e4 LT |
247 | * @sb_mount: |
248 | * Check permission before an object specified by @dev_name is mounted on | |
249 | * the mount point named by @nd. For an ordinary mount, @dev_name | |
250 | * identifies a device if the file system type requires a device. For a | |
251 | * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a | |
252 | * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the | |
253 | * pathname of the object being mounted. | |
254 | * @dev_name contains the name for object being mounted. | |
b5266eb4 | 255 | * @path contains the path for mount point object. |
1da177e4 LT |
256 | * @type contains the filesystem type. |
257 | * @flags contains the mount flags. | |
258 | * @data contains the filesystem-specific data. | |
259 | * Return 0 if permission is granted. | |
260 | * @sb_copy_data: | |
261 | * Allow mount option data to be copied prior to parsing by the filesystem, | |
262 | * so that the security module can extract security-specific mount | |
263 | * options cleanly (a filesystem may modify the data e.g. with strsep()). | |
264 | * This also allows the original mount data to be stripped of security- | |
265 | * specific options to avoid having to make filesystems aware of them. | |
266 | * @type the type of filesystem being mounted. | |
267 | * @orig the original mount data copied from userspace. | |
268 | * @copy copied data which will be passed to the security module. | |
269 | * Returns 0 if the copy was successful. | |
1da177e4 LT |
270 | * @sb_umount: |
271 | * Check permission before the @mnt file system is unmounted. | |
272 | * @mnt contains the mounted file system. | |
273 | * @flags contains the unmount flags, e.g. MNT_FORCE. | |
274 | * Return 0 if permission is granted. | |
1da177e4 LT |
275 | * @sb_pivotroot: |
276 | * Check permission before pivoting the root filesystem. | |
b5266eb4 | 277 | * @old_path contains the path for the new location of the current root (put_old). |
7b41b173 | 278 | * @new_path contains the path for the new root (new_root). |
1da177e4 | 279 | * Return 0 if permission is granted. |
c9180a57 EP |
280 | * @sb_set_mnt_opts: |
281 | * Set the security relevant mount options used for a superblock | |
282 | * @sb the superblock to set security mount options for | |
e0007529 | 283 | * @opts binary data structure containing all lsm mount data |
c9180a57 EP |
284 | * @sb_clone_mnt_opts: |
285 | * Copy all security options from a given superblock to another | |
286 | * @oldsb old superblock which contain information to clone | |
287 | * @newsb new superblock which needs filled in | |
e0007529 EP |
288 | * @sb_parse_opts_str: |
289 | * Parse a string of security data filling in the opts structure | |
290 | * @options string containing all mount options known by the LSM | |
291 | * @opts binary data structure usable by the LSM | |
1da177e4 LT |
292 | * |
293 | * Security hooks for inode operations. | |
294 | * | |
295 | * @inode_alloc_security: | |
296 | * Allocate and attach a security structure to @inode->i_security. The | |
297 | * i_security field is initialized to NULL when the inode structure is | |
298 | * allocated. | |
299 | * @inode contains the inode structure. | |
300 | * Return 0 if operation was successful. | |
301 | * @inode_free_security: | |
302 | * @inode contains the inode structure. | |
303 | * Deallocate the inode security structure and set @inode->i_security to | |
7b41b173 | 304 | * NULL. |
5e41ff9e | 305 | * @inode_init_security: |
7b41b173 | 306 | * Obtain the security attribute name suffix and value to set on a newly |
5e41ff9e SS |
307 | * created inode and set up the incore security field for the new inode. |
308 | * This hook is called by the fs code as part of the inode creation | |
309 | * transaction and provides for atomic labeling of the inode, unlike | |
310 | * the post_create/mkdir/... hooks called by the VFS. The hook function | |
311 | * is expected to allocate the name and value via kmalloc, with the caller | |
312 | * being responsible for calling kfree after using them. | |
313 | * If the security module does not use security attributes or does | |
314 | * not wish to put a security attribute on this particular inode, | |
315 | * then it should return -EOPNOTSUPP to skip this processing. | |
316 | * @inode contains the inode structure of the newly created inode. | |
317 | * @dir contains the inode structure of the parent directory. | |
318 | * @name will be set to the allocated name suffix (e.g. selinux). | |
319 | * @value will be set to the allocated attribute value. | |
320 | * @len will be set to the length of the value. | |
321 | * Returns 0 if @name and @value have been successfully set, | |
322 | * -EOPNOTSUPP if no security attribute is needed, or | |
323 | * -ENOMEM on memory allocation failure. | |
1da177e4 LT |
324 | * @inode_create: |
325 | * Check permission to create a regular file. | |
326 | * @dir contains inode structure of the parent of the new file. | |
327 | * @dentry contains the dentry structure for the file to be created. | |
328 | * @mode contains the file mode of the file to be created. | |
329 | * Return 0 if permission is granted. | |
1da177e4 LT |
330 | * @inode_link: |
331 | * Check permission before creating a new hard link to a file. | |
332 | * @old_dentry contains the dentry structure for an existing link to the file. | |
333 | * @dir contains the inode structure of the parent directory of the new link. | |
334 | * @new_dentry contains the dentry structure for the new link. | |
335 | * Return 0 if permission is granted. | |
be6d3e56 KT |
336 | * @path_link: |
337 | * Check permission before creating a new hard link to a file. | |
338 | * @old_dentry contains the dentry structure for an existing link | |
339 | * to the file. | |
340 | * @new_dir contains the path structure of the parent directory of | |
341 | * the new link. | |
342 | * @new_dentry contains the dentry structure for the new link. | |
343 | * Return 0 if permission is granted. | |
1da177e4 | 344 | * @inode_unlink: |
7b41b173 | 345 | * Check the permission to remove a hard link to a file. |
1da177e4 LT |
346 | * @dir contains the inode structure of parent directory of the file. |
347 | * @dentry contains the dentry structure for file to be unlinked. | |
348 | * Return 0 if permission is granted. | |
be6d3e56 KT |
349 | * @path_unlink: |
350 | * Check the permission to remove a hard link to a file. | |
351 | * @dir contains the path structure of parent directory of the file. | |
352 | * @dentry contains the dentry structure for file to be unlinked. | |
353 | * Return 0 if permission is granted. | |
1da177e4 LT |
354 | * @inode_symlink: |
355 | * Check the permission to create a symbolic link to a file. | |
356 | * @dir contains the inode structure of parent directory of the symbolic link. | |
357 | * @dentry contains the dentry structure of the symbolic link. | |
358 | * @old_name contains the pathname of file. | |
359 | * Return 0 if permission is granted. | |
be6d3e56 KT |
360 | * @path_symlink: |
361 | * Check the permission to create a symbolic link to a file. | |
362 | * @dir contains the path structure of parent directory of | |
363 | * the symbolic link. | |
364 | * @dentry contains the dentry structure of the symbolic link. | |
365 | * @old_name contains the pathname of file. | |
366 | * Return 0 if permission is granted. | |
1da177e4 LT |
367 | * @inode_mkdir: |
368 | * Check permissions to create a new directory in the existing directory | |
7b41b173 | 369 | * associated with inode strcture @dir. |
1da177e4 LT |
370 | * @dir containst the inode structure of parent of the directory to be created. |
371 | * @dentry contains the dentry structure of new directory. | |
372 | * @mode contains the mode of new directory. | |
373 | * Return 0 if permission is granted. | |
be6d3e56 KT |
374 | * @path_mkdir: |
375 | * Check permissions to create a new directory in the existing directory | |
376 | * associated with path strcture @path. | |
377 | * @dir containst the path structure of parent of the directory | |
378 | * to be created. | |
379 | * @dentry contains the dentry structure of new directory. | |
380 | * @mode contains the mode of new directory. | |
381 | * Return 0 if permission is granted. | |
1da177e4 LT |
382 | * @inode_rmdir: |
383 | * Check the permission to remove a directory. | |
384 | * @dir contains the inode structure of parent of the directory to be removed. | |
385 | * @dentry contains the dentry structure of directory to be removed. | |
386 | * Return 0 if permission is granted. | |
be6d3e56 KT |
387 | * @path_rmdir: |
388 | * Check the permission to remove a directory. | |
389 | * @dir contains the path structure of parent of the directory to be | |
390 | * removed. | |
391 | * @dentry contains the dentry structure of directory to be removed. | |
392 | * Return 0 if permission is granted. | |
1da177e4 LT |
393 | * @inode_mknod: |
394 | * Check permissions when creating a special file (or a socket or a fifo | |
395 | * file created via the mknod system call). Note that if mknod operation | |
396 | * is being done for a regular file, then the create hook will be called | |
397 | * and not this hook. | |
398 | * @dir contains the inode structure of parent of the new file. | |
399 | * @dentry contains the dentry structure of the new file. | |
400 | * @mode contains the mode of the new file. | |
59c51591 | 401 | * @dev contains the device number. |
1da177e4 | 402 | * Return 0 if permission is granted. |
be6d3e56 KT |
403 | * @path_mknod: |
404 | * Check permissions when creating a file. Note that this hook is called | |
405 | * even if mknod operation is being done for a regular file. | |
406 | * @dir contains the path structure of parent of the new file. | |
407 | * @dentry contains the dentry structure of the new file. | |
408 | * @mode contains the mode of the new file. | |
409 | * @dev contains the undecoded device number. Use new_decode_dev() to get | |
410 | * the decoded device number. | |
411 | * Return 0 if permission is granted. | |
1da177e4 LT |
412 | * @inode_rename: |
413 | * Check for permission to rename a file or directory. | |
414 | * @old_dir contains the inode structure for parent of the old link. | |
415 | * @old_dentry contains the dentry structure of the old link. | |
416 | * @new_dir contains the inode structure for parent of the new link. | |
417 | * @new_dentry contains the dentry structure of the new link. | |
418 | * Return 0 if permission is granted. | |
be6d3e56 KT |
419 | * @path_rename: |
420 | * Check for permission to rename a file or directory. | |
421 | * @old_dir contains the path structure for parent of the old link. | |
422 | * @old_dentry contains the dentry structure of the old link. | |
423 | * @new_dir contains the path structure for parent of the new link. | |
424 | * @new_dentry contains the dentry structure of the new link. | |
425 | * Return 0 if permission is granted. | |
89eda068 TH |
426 | * @path_chmod: |
427 | * Check for permission to change DAC's permission of a file or directory. | |
428 | * @dentry contains the dentry structure. | |
429 | * @mnt contains the vfsmnt structure. | |
430 | * @mode contains DAC's mode. | |
431 | * Return 0 if permission is granted. | |
432 | * @path_chown: | |
433 | * Check for permission to change owner/group of a file or directory. | |
434 | * @path contains the path structure. | |
435 | * @uid contains new owner's ID. | |
436 | * @gid contains new group's ID. | |
437 | * Return 0 if permission is granted. | |
8b8efb44 TH |
438 | * @path_chroot: |
439 | * Check for permission to change root directory. | |
440 | * @path contains the path structure. | |
441 | * Return 0 if permission is granted. | |
1da177e4 LT |
442 | * @inode_readlink: |
443 | * Check the permission to read the symbolic link. | |
444 | * @dentry contains the dentry structure for the file link. | |
445 | * Return 0 if permission is granted. | |
446 | * @inode_follow_link: | |
447 | * Check permission to follow a symbolic link when looking up a pathname. | |
448 | * @dentry contains the dentry structure for the link. | |
449 | * @nd contains the nameidata structure for the parent directory. | |
450 | * Return 0 if permission is granted. | |
451 | * @inode_permission: | |
452 | * Check permission before accessing an inode. This hook is called by the | |
453 | * existing Linux permission function, so a security module can use it to | |
454 | * provide additional checking for existing Linux permission checks. | |
455 | * Notice that this hook is called when a file is opened (as well as many | |
456 | * other operations), whereas the file_security_ops permission hook is | |
457 | * called when the actual read/write operations are performed. | |
458 | * @inode contains the inode structure to check. | |
459 | * @mask contains the permission mask. | |
7b41b173 | 460 | * @nd contains the nameidata (may be NULL). |
1da177e4 LT |
461 | * Return 0 if permission is granted. |
462 | * @inode_setattr: | |
463 | * Check permission before setting file attributes. Note that the kernel | |
464 | * call to notify_change is performed from several locations, whenever | |
465 | * file attributes change (such as when a file is truncated, chown/chmod | |
466 | * operations, transferring disk quotas, etc). | |
467 | * @dentry contains the dentry structure for the file. | |
468 | * @attr is the iattr structure containing the new file attributes. | |
469 | * Return 0 if permission is granted. | |
be6d3e56 KT |
470 | * @path_truncate: |
471 | * Check permission before truncating a file. | |
472 | * @path contains the path structure for the file. | |
473 | * @length is the new length of the file. | |
474 | * @time_attrs is the flags passed to do_truncate(). | |
475 | * Return 0 if permission is granted. | |
1da177e4 LT |
476 | * @inode_getattr: |
477 | * Check permission before obtaining file attributes. | |
478 | * @mnt is the vfsmount where the dentry was looked up | |
479 | * @dentry contains the dentry structure for the file. | |
480 | * Return 0 if permission is granted. | |
1da177e4 | 481 | * @inode_setxattr: |
7b41b173 EP |
482 | * Check permission before setting the extended attributes |
483 | * @value identified by @name for @dentry. | |
484 | * Return 0 if permission is granted. | |
1da177e4 | 485 | * @inode_post_setxattr: |
7b41b173 EP |
486 | * Update inode security field after successful setxattr operation. |
487 | * @value identified by @name for @dentry. | |
1da177e4 | 488 | * @inode_getxattr: |
7b41b173 EP |
489 | * Check permission before obtaining the extended attributes |
490 | * identified by @name for @dentry. | |
491 | * Return 0 if permission is granted. | |
1da177e4 | 492 | * @inode_listxattr: |
7b41b173 EP |
493 | * Check permission before obtaining the list of extended attribute |
494 | * names for @dentry. | |
495 | * Return 0 if permission is granted. | |
1da177e4 | 496 | * @inode_removexattr: |
7b41b173 EP |
497 | * Check permission before removing the extended attribute |
498 | * identified by @name for @dentry. | |
499 | * Return 0 if permission is granted. | |
1da177e4 | 500 | * @inode_getsecurity: |
42492594 DQ |
501 | * Retrieve a copy of the extended attribute representation of the |
502 | * security label associated with @name for @inode via @buffer. Note that | |
503 | * @name is the remainder of the attribute name after the security prefix | |
504 | * has been removed. @alloc is used to specify of the call should return a | |
505 | * value via the buffer or just the value length Return size of buffer on | |
506 | * success. | |
1da177e4 LT |
507 | * @inode_setsecurity: |
508 | * Set the security label associated with @name for @inode from the | |
509 | * extended attribute value @value. @size indicates the size of the | |
510 | * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0. | |
7b41b173 | 511 | * Note that @name is the remainder of the attribute name after the |
1da177e4 LT |
512 | * security. prefix has been removed. |
513 | * Return 0 on success. | |
514 | * @inode_listsecurity: | |
515 | * Copy the extended attribute names for the security labels | |
516 | * associated with @inode into @buffer. The maximum size of @buffer | |
517 | * is specified by @buffer_size. @buffer may be NULL to request | |
518 | * the size of the buffer required. | |
519 | * Returns number of bytes used/required on success. | |
b5376771 SH |
520 | * @inode_need_killpriv: |
521 | * Called when an inode has been changed. | |
522 | * @dentry is the dentry being changed. | |
523 | * Return <0 on error to abort the inode change operation. | |
524 | * Return 0 if inode_killpriv does not need to be called. | |
525 | * Return >0 if inode_killpriv does need to be called. | |
526 | * @inode_killpriv: | |
527 | * The setuid bit is being removed. Remove similar security labels. | |
528 | * Called with the dentry->d_inode->i_mutex held. | |
529 | * @dentry is the dentry being changed. | |
530 | * Return 0 on success. If error is returned, then the operation | |
531 | * causing setuid bit removal is failed. | |
8a076191 AD |
532 | * @inode_getsecid: |
533 | * Get the secid associated with the node. | |
534 | * @inode contains a pointer to the inode. | |
535 | * @secid contains a pointer to the location where result will be saved. | |
536 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
537 | * |
538 | * Security hooks for file operations | |
539 | * | |
540 | * @file_permission: | |
541 | * Check file permissions before accessing an open file. This hook is | |
542 | * called by various operations that read or write files. A security | |
543 | * module can use this hook to perform additional checking on these | |
544 | * operations, e.g. to revalidate permissions on use to support privilege | |
545 | * bracketing or policy changes. Notice that this hook is used when the | |
546 | * actual read/write operations are performed, whereas the | |
547 | * inode_security_ops hook is called when a file is opened (as well as | |
548 | * many other operations). | |
549 | * Caveat: Although this hook can be used to revalidate permissions for | |
550 | * various system call operations that read or write files, it does not | |
551 | * address the revalidation of permissions for memory-mapped files. | |
552 | * Security modules must handle this separately if they need such | |
553 | * revalidation. | |
554 | * @file contains the file structure being accessed. | |
555 | * @mask contains the requested permissions. | |
556 | * Return 0 if permission is granted. | |
557 | * @file_alloc_security: | |
558 | * Allocate and attach a security structure to the file->f_security field. | |
559 | * The security field is initialized to NULL when the structure is first | |
560 | * created. | |
561 | * @file contains the file structure to secure. | |
562 | * Return 0 if the hook is successful and permission is granted. | |
563 | * @file_free_security: | |
564 | * Deallocate and free any security structures stored in file->f_security. | |
565 | * @file contains the file structure being modified. | |
566 | * @file_ioctl: | |
567 | * @file contains the file structure. | |
568 | * @cmd contains the operation to perform. | |
569 | * @arg contains the operational arguments. | |
570 | * Check permission for an ioctl operation on @file. Note that @arg can | |
571 | * sometimes represents a user space pointer; in other cases, it may be a | |
572 | * simple integer value. When @arg represents a user space pointer, it | |
573 | * should never be used by the security module. | |
574 | * Return 0 if permission is granted. | |
575 | * @file_mmap : | |
576 | * Check permissions for a mmap operation. The @file may be NULL, e.g. | |
577 | * if mapping anonymous memory. | |
578 | * @file contains the file structure for file to map (may be NULL). | |
579 | * @reqprot contains the protection requested by the application. | |
580 | * @prot contains the protection that will be applied by the kernel. | |
581 | * @flags contains the operational flags. | |
582 | * Return 0 if permission is granted. | |
583 | * @file_mprotect: | |
584 | * Check permissions before changing memory access permissions. | |
585 | * @vma contains the memory region to modify. | |
586 | * @reqprot contains the protection requested by the application. | |
587 | * @prot contains the protection that will be applied by the kernel. | |
588 | * Return 0 if permission is granted. | |
589 | * @file_lock: | |
590 | * Check permission before performing file locking operations. | |
591 | * Note: this hook mediates both flock and fcntl style locks. | |
592 | * @file contains the file structure. | |
593 | * @cmd contains the posix-translated lock operation to perform | |
594 | * (e.g. F_RDLCK, F_WRLCK). | |
595 | * Return 0 if permission is granted. | |
596 | * @file_fcntl: | |
597 | * Check permission before allowing the file operation specified by @cmd | |
598 | * from being performed on the file @file. Note that @arg can sometimes | |
599 | * represents a user space pointer; in other cases, it may be a simple | |
600 | * integer value. When @arg represents a user space pointer, it should | |
601 | * never be used by the security module. | |
602 | * @file contains the file structure. | |
603 | * @cmd contains the operation to be performed. | |
604 | * @arg contains the operational arguments. | |
605 | * Return 0 if permission is granted. | |
606 | * @file_set_fowner: | |
607 | * Save owner security information (typically from current->security) in | |
608 | * file->f_security for later use by the send_sigiotask hook. | |
609 | * @file contains the file structure to update. | |
610 | * Return 0 on success. | |
611 | * @file_send_sigiotask: | |
612 | * Check permission for the file owner @fown to send SIGIO or SIGURG to the | |
613 | * process @tsk. Note that this hook is sometimes called from interrupt. | |
614 | * Note that the fown_struct, @fown, is never outside the context of a | |
615 | * struct file, so the file structure (and associated security information) | |
616 | * can always be obtained: | |
b385a144 | 617 | * container_of(fown, struct file, f_owner) |
7b41b173 | 618 | * @tsk contains the structure of task receiving signal. |
1da177e4 LT |
619 | * @fown contains the file owner information. |
620 | * @sig is the signal that will be sent. When 0, kernel sends SIGIO. | |
621 | * Return 0 if permission is granted. | |
622 | * @file_receive: | |
623 | * This hook allows security modules to control the ability of a process | |
624 | * to receive an open file descriptor via socket IPC. | |
625 | * @file contains the file structure being received. | |
626 | * Return 0 if permission is granted. | |
627 | * | |
788e7dd4 YN |
628 | * Security hook for dentry |
629 | * | |
630 | * @dentry_open | |
631 | * Save open-time permission checking state for later use upon | |
632 | * file_permission, and recheck access if anything has changed | |
633 | * since inode_permission. | |
634 | * | |
1da177e4 LT |
635 | * Security hooks for task operations. |
636 | * | |
637 | * @task_create: | |
638 | * Check permission before creating a child process. See the clone(2) | |
639 | * manual page for definitions of the @clone_flags. | |
640 | * @clone_flags contains the flags indicating what should be shared. | |
641 | * Return 0 if permission is granted. | |
ee18d64c DH |
642 | * @cred_alloc_blank: |
643 | * @cred points to the credentials. | |
644 | * @gfp indicates the atomicity of any memory allocations. | |
645 | * Only allocate sufficient memory and attach to @cred such that | |
646 | * cred_transfer() will not get ENOMEM. | |
f1752eec DH |
647 | * @cred_free: |
648 | * @cred points to the credentials. | |
649 | * Deallocate and clear the cred->security field in a set of credentials. | |
d84f4f99 DH |
650 | * @cred_prepare: |
651 | * @new points to the new credentials. | |
652 | * @old points to the original credentials. | |
653 | * @gfp indicates the atomicity of any memory allocations. | |
654 | * Prepare a new set of credentials by copying the data from the old set. | |
ee18d64c DH |
655 | * @cred_transfer: |
656 | * @new points to the new credentials. | |
657 | * @old points to the original credentials. | |
658 | * Transfer data from original creds to new creds | |
3a3b7ce9 DH |
659 | * @kernel_act_as: |
660 | * Set the credentials for a kernel service to act as (subjective context). | |
661 | * @new points to the credentials to be modified. | |
662 | * @secid specifies the security ID to be set | |
663 | * The current task must be the one that nominated @secid. | |
664 | * Return 0 if successful. | |
665 | * @kernel_create_files_as: | |
666 | * Set the file creation context in a set of credentials to be the same as | |
667 | * the objective context of the specified inode. | |
668 | * @new points to the credentials to be modified. | |
669 | * @inode points to the inode to use as a reference. | |
670 | * The current task must be the one that nominated @inode. | |
671 | * Return 0 if successful. | |
9188499c EP |
672 | * @kernel_module_request: |
673 | * Ability to trigger the kernel to automatically upcall to userspace for | |
674 | * userspace to load a kernel module with the given name. | |
dd8dbf2e | 675 | * @kmod_name name of the module requested by the kernel |
f322abf8 | 676 | * Return 0 if successful. |
d84f4f99 | 677 | * @task_fix_setuid: |
1da177e4 LT |
678 | * Update the module's state after setting one or more of the user |
679 | * identity attributes of the current process. The @flags parameter | |
680 | * indicates which of the set*uid system calls invoked this hook. If | |
d84f4f99 DH |
681 | * @new is the set of credentials that will be installed. Modifications |
682 | * should be made to this rather than to @current->cred. | |
683 | * @old is the set of credentials that are being replaces | |
1da177e4 LT |
684 | * @flags contains one of the LSM_SETID_* values. |
685 | * Return 0 on success. | |
1da177e4 LT |
686 | * @task_setpgid: |
687 | * Check permission before setting the process group identifier of the | |
688 | * process @p to @pgid. | |
689 | * @p contains the task_struct for process being modified. | |
690 | * @pgid contains the new pgid. | |
691 | * Return 0 if permission is granted. | |
692 | * @task_getpgid: | |
693 | * Check permission before getting the process group identifier of the | |
694 | * process @p. | |
695 | * @p contains the task_struct for the process. | |
696 | * Return 0 if permission is granted. | |
697 | * @task_getsid: | |
698 | * Check permission before getting the session identifier of the process | |
699 | * @p. | |
700 | * @p contains the task_struct for the process. | |
701 | * Return 0 if permission is granted. | |
f9008e4c DQ |
702 | * @task_getsecid: |
703 | * Retrieve the security identifier of the process @p. | |
704 | * @p contains the task_struct for the process and place is into @secid. | |
8a076191 AD |
705 | * In case of failure, @secid will be set to zero. |
706 | * | |
1da177e4 LT |
707 | * @task_setnice: |
708 | * Check permission before setting the nice value of @p to @nice. | |
709 | * @p contains the task_struct of process. | |
710 | * @nice contains the new nice value. | |
711 | * Return 0 if permission is granted. | |
03e68060 JM |
712 | * @task_setioprio |
713 | * Check permission before setting the ioprio value of @p to @ioprio. | |
714 | * @p contains the task_struct of process. | |
715 | * @ioprio contains the new ioprio value | |
716 | * Return 0 if permission is granted. | |
a1836a42 DQ |
717 | * @task_getioprio |
718 | * Check permission before getting the ioprio value of @p. | |
719 | * @p contains the task_struct of process. | |
720 | * Return 0 if permission is granted. | |
1da177e4 LT |
721 | * @task_setrlimit: |
722 | * Check permission before setting the resource limits of the current | |
723 | * process for @resource to @new_rlim. The old resource limit values can | |
724 | * be examined by dereferencing (current->signal->rlim + resource). | |
725 | * @resource contains the resource whose limit is being set. | |
726 | * @new_rlim contains the new limits for @resource. | |
727 | * Return 0 if permission is granted. | |
728 | * @task_setscheduler: | |
729 | * Check permission before setting scheduling policy and/or parameters of | |
730 | * process @p based on @policy and @lp. | |
731 | * @p contains the task_struct for process. | |
732 | * @policy contains the scheduling policy. | |
733 | * @lp contains the scheduling parameters. | |
734 | * Return 0 if permission is granted. | |
735 | * @task_getscheduler: | |
736 | * Check permission before obtaining scheduling information for process | |
737 | * @p. | |
738 | * @p contains the task_struct for process. | |
739 | * Return 0 if permission is granted. | |
35601547 DQ |
740 | * @task_movememory |
741 | * Check permission before moving memory owned by process @p. | |
742 | * @p contains the task_struct for process. | |
743 | * Return 0 if permission is granted. | |
1da177e4 LT |
744 | * @task_kill: |
745 | * Check permission before sending signal @sig to @p. @info can be NULL, | |
746 | * the constant 1, or a pointer to a siginfo structure. If @info is 1 or | |
747 | * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming | |
748 | * from the kernel and should typically be permitted. | |
749 | * SIGIO signals are handled separately by the send_sigiotask hook in | |
750 | * file_security_ops. | |
751 | * @p contains the task_struct for process. | |
752 | * @info contains the signal information. | |
753 | * @sig contains the signal value. | |
f9008e4c | 754 | * @secid contains the sid of the process where the signal originated |
1da177e4 LT |
755 | * Return 0 if permission is granted. |
756 | * @task_wait: | |
757 | * Check permission before allowing a process to reap a child process @p | |
758 | * and collect its status information. | |
759 | * @p contains the task_struct for process. | |
760 | * Return 0 if permission is granted. | |
761 | * @task_prctl: | |
762 | * Check permission before performing a process control operation on the | |
763 | * current process. | |
764 | * @option contains the operation. | |
765 | * @arg2 contains a argument. | |
766 | * @arg3 contains a argument. | |
767 | * @arg4 contains a argument. | |
768 | * @arg5 contains a argument. | |
d84f4f99 DH |
769 | * Return -ENOSYS if no-one wanted to handle this op, any other value to |
770 | * cause prctl() to return immediately with that value. | |
1da177e4 | 771 | * @task_to_inode: |
7b41b173 EP |
772 | * Set the security attributes for an inode based on an associated task's |
773 | * security attributes, e.g. for /proc/pid inodes. | |
1da177e4 LT |
774 | * @p contains the task_struct for the task. |
775 | * @inode contains the inode structure for the inode. | |
776 | * | |
777 | * Security hooks for Netlink messaging. | |
778 | * | |
779 | * @netlink_send: | |
780 | * Save security information for a netlink message so that permission | |
781 | * checking can be performed when the message is processed. The security | |
782 | * information can be saved using the eff_cap field of the | |
7b41b173 | 783 | * netlink_skb_parms structure. Also may be used to provide fine |
1da177e4 LT |
784 | * grained control over message transmission. |
785 | * @sk associated sock of task sending the message., | |
786 | * @skb contains the sk_buff structure for the netlink message. | |
787 | * Return 0 if the information was successfully saved and message | |
788 | * is allowed to be transmitted. | |
789 | * @netlink_recv: | |
790 | * Check permission before processing the received netlink message in | |
791 | * @skb. | |
792 | * @skb contains the sk_buff structure for the netlink message. | |
c7bdb545 | 793 | * @cap indicates the capability required |
1da177e4 LT |
794 | * Return 0 if permission is granted. |
795 | * | |
796 | * Security hooks for Unix domain networking. | |
797 | * | |
798 | * @unix_stream_connect: | |
799 | * Check permissions before establishing a Unix domain stream connection | |
800 | * between @sock and @other. | |
801 | * @sock contains the socket structure. | |
802 | * @other contains the peer socket structure. | |
803 | * Return 0 if permission is granted. | |
804 | * @unix_may_send: | |
805 | * Check permissions before connecting or sending datagrams from @sock to | |
806 | * @other. | |
807 | * @sock contains the socket structure. | |
808 | * @sock contains the peer socket structure. | |
809 | * Return 0 if permission is granted. | |
810 | * | |
811 | * The @unix_stream_connect and @unix_may_send hooks were necessary because | |
812 | * Linux provides an alternative to the conventional file name space for Unix | |
813 | * domain sockets. Whereas binding and connecting to sockets in the file name | |
814 | * space is mediated by the typical file permissions (and caught by the mknod | |
815 | * and permission hooks in inode_security_ops), binding and connecting to | |
816 | * sockets in the abstract name space is completely unmediated. Sufficient | |
817 | * control of Unix domain sockets in the abstract name space isn't possible | |
818 | * using only the socket layer hooks, since we need to know the actual target | |
819 | * socket, which is not looked up until we are inside the af_unix code. | |
820 | * | |
821 | * Security hooks for socket operations. | |
822 | * | |
823 | * @socket_create: | |
824 | * Check permissions prior to creating a new socket. | |
825 | * @family contains the requested protocol family. | |
826 | * @type contains the requested communications type. | |
827 | * @protocol contains the requested protocol. | |
828 | * @kern set to 1 if a kernel socket. | |
829 | * Return 0 if permission is granted. | |
830 | * @socket_post_create: | |
831 | * This hook allows a module to update or allocate a per-socket security | |
832 | * structure. Note that the security field was not added directly to the | |
833 | * socket structure, but rather, the socket security information is stored | |
834 | * in the associated inode. Typically, the inode alloc_security hook will | |
835 | * allocate and and attach security information to | |
836 | * sock->inode->i_security. This hook may be used to update the | |
837 | * sock->inode->i_security field with additional information that wasn't | |
838 | * available when the inode was allocated. | |
839 | * @sock contains the newly created socket structure. | |
840 | * @family contains the requested protocol family. | |
841 | * @type contains the requested communications type. | |
842 | * @protocol contains the requested protocol. | |
843 | * @kern set to 1 if a kernel socket. | |
844 | * @socket_bind: | |
845 | * Check permission before socket protocol layer bind operation is | |
846 | * performed and the socket @sock is bound to the address specified in the | |
847 | * @address parameter. | |
848 | * @sock contains the socket structure. | |
849 | * @address contains the address to bind to. | |
850 | * @addrlen contains the length of address. | |
7b41b173 | 851 | * Return 0 if permission is granted. |
1da177e4 LT |
852 | * @socket_connect: |
853 | * Check permission before socket protocol layer connect operation | |
854 | * attempts to connect socket @sock to a remote address, @address. | |
855 | * @sock contains the socket structure. | |
856 | * @address contains the address of remote endpoint. | |
857 | * @addrlen contains the length of address. | |
7b41b173 | 858 | * Return 0 if permission is granted. |
1da177e4 LT |
859 | * @socket_listen: |
860 | * Check permission before socket protocol layer listen operation. | |
861 | * @sock contains the socket structure. | |
862 | * @backlog contains the maximum length for the pending connection queue. | |
863 | * Return 0 if permission is granted. | |
864 | * @socket_accept: | |
865 | * Check permission before accepting a new connection. Note that the new | |
866 | * socket, @newsock, has been created and some information copied to it, | |
867 | * but the accept operation has not actually been performed. | |
868 | * @sock contains the listening socket structure. | |
869 | * @newsock contains the newly created server socket for connection. | |
870 | * Return 0 if permission is granted. | |
1da177e4 LT |
871 | * @socket_sendmsg: |
872 | * Check permission before transmitting a message to another socket. | |
873 | * @sock contains the socket structure. | |
874 | * @msg contains the message to be transmitted. | |
875 | * @size contains the size of message. | |
876 | * Return 0 if permission is granted. | |
877 | * @socket_recvmsg: | |
878 | * Check permission before receiving a message from a socket. | |
879 | * @sock contains the socket structure. | |
880 | * @msg contains the message structure. | |
881 | * @size contains the size of message structure. | |
882 | * @flags contains the operational flags. | |
7b41b173 | 883 | * Return 0 if permission is granted. |
1da177e4 LT |
884 | * @socket_getsockname: |
885 | * Check permission before the local address (name) of the socket object | |
886 | * @sock is retrieved. | |
887 | * @sock contains the socket structure. | |
888 | * Return 0 if permission is granted. | |
889 | * @socket_getpeername: | |
890 | * Check permission before the remote address (name) of a socket object | |
891 | * @sock is retrieved. | |
892 | * @sock contains the socket structure. | |
893 | * Return 0 if permission is granted. | |
894 | * @socket_getsockopt: | |
895 | * Check permissions before retrieving the options associated with socket | |
896 | * @sock. | |
897 | * @sock contains the socket structure. | |
898 | * @level contains the protocol level to retrieve option from. | |
899 | * @optname contains the name of option to retrieve. | |
900 | * Return 0 if permission is granted. | |
901 | * @socket_setsockopt: | |
902 | * Check permissions before setting the options associated with socket | |
903 | * @sock. | |
904 | * @sock contains the socket structure. | |
905 | * @level contains the protocol level to set options for. | |
906 | * @optname contains the name of the option to set. | |
7b41b173 | 907 | * Return 0 if permission is granted. |
1da177e4 LT |
908 | * @socket_shutdown: |
909 | * Checks permission before all or part of a connection on the socket | |
910 | * @sock is shut down. | |
911 | * @sock contains the socket structure. | |
912 | * @how contains the flag indicating how future sends and receives are handled. | |
913 | * Return 0 if permission is granted. | |
914 | * @socket_sock_rcv_skb: | |
915 | * Check permissions on incoming network packets. This hook is distinct | |
916 | * from Netfilter's IP input hooks since it is the first time that the | |
917 | * incoming sk_buff @skb has been associated with a particular socket, @sk. | |
0ed73185 | 918 | * Must not sleep inside this hook because some callers hold spinlocks. |
1da177e4 LT |
919 | * @sk contains the sock (not socket) associated with the incoming sk_buff. |
920 | * @skb contains the incoming network data. | |
6da34bae | 921 | * @socket_getpeersec_stream: |
1da177e4 | 922 | * This hook allows the security module to provide peer socket security |
6da34bae SH |
923 | * state for unix or connected tcp sockets to userspace via getsockopt |
924 | * SO_GETPEERSEC. For tcp sockets this can be meaningful if the | |
925 | * socket is associated with an ipsec SA. | |
1da177e4 LT |
926 | * @sock is the local socket. |
927 | * @optval userspace memory where the security state is to be copied. | |
928 | * @optlen userspace int where the module should copy the actual length | |
929 | * of the security state. | |
930 | * @len as input is the maximum length to copy to userspace provided | |
931 | * by the caller. | |
932 | * Return 0 if all is well, otherwise, typical getsockopt return | |
933 | * values. | |
6da34bae | 934 | * @socket_getpeersec_dgram: |
7b41b173 EP |
935 | * This hook allows the security module to provide peer socket security |
936 | * state for udp sockets on a per-packet basis to userspace via | |
937 | * getsockopt SO_GETPEERSEC. The application must first have indicated | |
938 | * the IP_PASSSEC option via getsockopt. It can then retrieve the | |
939 | * security state returned by this hook for a packet via the SCM_SECURITY | |
940 | * ancillary message type. | |
941 | * @skb is the skbuff for the packet being queried | |
942 | * @secdata is a pointer to a buffer in which to copy the security data | |
943 | * @seclen is the maximum length for @secdata | |
944 | * Return 0 on success, error on failure. | |
1da177e4 | 945 | * @sk_alloc_security: |
7b41b173 EP |
946 | * Allocate and attach a security structure to the sk->sk_security field, |
947 | * which is used to copy security attributes between local stream sockets. | |
1da177e4 LT |
948 | * @sk_free_security: |
949 | * Deallocate security structure. | |
892c141e VY |
950 | * @sk_clone_security: |
951 | * Clone/copy security structure. | |
beb8d13b VY |
952 | * @sk_getsecid: |
953 | * Retrieve the LSM-specific secid for the sock to enable caching of network | |
df71837d | 954 | * authorizations. |
4237c75c VY |
955 | * @sock_graft: |
956 | * Sets the socket's isec sid to the sock's sid. | |
957 | * @inet_conn_request: | |
958 | * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid. | |
959 | * @inet_csk_clone: | |
960 | * Sets the new child socket's sid to the openreq sid. | |
6b877699 | 961 | * @inet_conn_established: |
7b41b173 | 962 | * Sets the connection's peersid to the secmark on skb. |
4237c75c VY |
963 | * @req_classify_flow: |
964 | * Sets the flow's sid to the openreq sid. | |
2b980dbd PM |
965 | * @tun_dev_create: |
966 | * Check permissions prior to creating a new TUN device. | |
967 | * @tun_dev_post_create: | |
968 | * This hook allows a module to update or allocate a per-socket security | |
969 | * structure. | |
970 | * @sk contains the newly created sock structure. | |
971 | * @tun_dev_attach: | |
972 | * Check permissions prior to attaching to a persistent TUN device. This | |
973 | * hook can also be used by the module to update any security state | |
974 | * associated with the TUN device's sock structure. | |
975 | * @sk contains the existing sock structure. | |
df71837d TJ |
976 | * |
977 | * Security hooks for XFRM operations. | |
978 | * | |
979 | * @xfrm_policy_alloc_security: | |
03e1ad7b PM |
980 | * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy |
981 | * Database used by the XFRM system. | |
df71837d TJ |
982 | * @sec_ctx contains the security context information being provided by |
983 | * the user-level policy update program (e.g., setkey). | |
e0d1caa7 | 984 | * Allocate a security structure to the xp->security field; the security |
c1a856c9 | 985 | * field is initialized to NULL when the xfrm_policy is allocated. |
df71837d TJ |
986 | * Return 0 if operation was successful (memory to allocate, legal context) |
987 | * @xfrm_policy_clone_security: | |
03e1ad7b PM |
988 | * @old_ctx contains an existing xfrm_sec_ctx. |
989 | * @new_ctxp contains a new xfrm_sec_ctx being cloned from old. | |
990 | * Allocate a security structure in new_ctxp that contains the | |
991 | * information from the old_ctx structure. | |
df71837d TJ |
992 | * Return 0 if operation was successful (memory to allocate). |
993 | * @xfrm_policy_free_security: | |
03e1ad7b | 994 | * @ctx contains the xfrm_sec_ctx |
c8c05a8e CZ |
995 | * Deallocate xp->security. |
996 | * @xfrm_policy_delete_security: | |
03e1ad7b | 997 | * @ctx contains the xfrm_sec_ctx. |
c8c05a8e | 998 | * Authorize deletion of xp->security. |
df71837d TJ |
999 | * @xfrm_state_alloc_security: |
1000 | * @x contains the xfrm_state being added to the Security Association | |
1001 | * Database by the XFRM system. | |
1002 | * @sec_ctx contains the security context information being provided by | |
1003 | * the user-level SA generation program (e.g., setkey or racoon). | |
e0d1caa7 VY |
1004 | * @secid contains the secid from which to take the mls portion of the context. |
1005 | * Allocate a security structure to the x->security field; the security | |
1006 | * field is initialized to NULL when the xfrm_state is allocated. Set the | |
1007 | * context to correspond to either sec_ctx or polsec, with the mls portion | |
1008 | * taken from secid in the latter case. | |
df71837d TJ |
1009 | * Return 0 if operation was successful (memory to allocate, legal context). |
1010 | * @xfrm_state_free_security: | |
1011 | * @x contains the xfrm_state. | |
c8c05a8e CZ |
1012 | * Deallocate x->security. |
1013 | * @xfrm_state_delete_security: | |
1014 | * @x contains the xfrm_state. | |
1015 | * Authorize deletion of x->security. | |
df71837d | 1016 | * @xfrm_policy_lookup: |
03e1ad7b | 1017 | * @ctx contains the xfrm_sec_ctx for which the access control is being |
df71837d | 1018 | * checked. |
e0d1caa7 | 1019 | * @fl_secid contains the flow security label that is used to authorize |
df71837d TJ |
1020 | * access to the policy xp. |
1021 | * @dir contains the direction of the flow (input or output). | |
e0d1caa7 | 1022 | * Check permission when a flow selects a xfrm_policy for processing |
df71837d TJ |
1023 | * XFRMs on a packet. The hook is called when selecting either a |
1024 | * per-socket policy or a generic xfrm policy. | |
5b368e61 VY |
1025 | * Return 0 if permission is granted, -ESRCH otherwise, or -errno |
1026 | * on other errors. | |
e0d1caa7 VY |
1027 | * @xfrm_state_pol_flow_match: |
1028 | * @x contains the state to match. | |
1029 | * @xp contains the policy to check for a match. | |
1030 | * @fl contains the flow to check for a match. | |
1031 | * Return 1 if there is a match. | |
e0d1caa7 VY |
1032 | * @xfrm_decode_session: |
1033 | * @skb points to skb to decode. | |
beb8d13b VY |
1034 | * @secid points to the flow key secid to set. |
1035 | * @ckall says if all xfrms used should be checked for same secid. | |
1036 | * Return 0 if ckall is zero or all xfrms used have the same secid. | |
1da177e4 | 1037 | * |
29db9190 DH |
1038 | * Security hooks affecting all Key Management operations |
1039 | * | |
1040 | * @key_alloc: | |
1041 | * Permit allocation of a key and assign security data. Note that key does | |
1042 | * not have a serial number assigned at this point. | |
1043 | * @key points to the key. | |
7e047ef5 | 1044 | * @flags is the allocation flags |
29db9190 DH |
1045 | * Return 0 if permission is granted, -ve error otherwise. |
1046 | * @key_free: | |
1047 | * Notification of destruction; free security data. | |
1048 | * @key points to the key. | |
1049 | * No return value. | |
1050 | * @key_permission: | |
1051 | * See whether a specific operational right is granted to a process on a | |
7b41b173 | 1052 | * key. |
29db9190 | 1053 | * @key_ref refers to the key (key pointer + possession attribute bit). |
d84f4f99 | 1054 | * @cred points to the credentials to provide the context against which to |
7b41b173 | 1055 | * evaluate the security data on the key. |
29db9190 DH |
1056 | * @perm describes the combination of permissions required of this key. |
1057 | * Return 1 if permission granted, 0 if permission denied and -ve it the | |
7b41b173 | 1058 | * normal permissions model should be effected. |
70a5bb72 DH |
1059 | * @key_getsecurity: |
1060 | * Get a textual representation of the security context attached to a key | |
1061 | * for the purposes of honouring KEYCTL_GETSECURITY. This function | |
1062 | * allocates the storage for the NUL-terminated string and the caller | |
1063 | * should free it. | |
1064 | * @key points to the key to be queried. | |
1065 | * @_buffer points to a pointer that should be set to point to the | |
1066 | * resulting string (if no label or an error occurs). | |
1067 | * Return the length of the string (including terminating NUL) or -ve if | |
1068 | * an error. | |
1069 | * May also return 0 (and a NULL buffer pointer) if there is no label. | |
29db9190 | 1070 | * |
1da177e4 LT |
1071 | * Security hooks affecting all System V IPC operations. |
1072 | * | |
1073 | * @ipc_permission: | |
1074 | * Check permissions for access to IPC | |
1075 | * @ipcp contains the kernel IPC permission structure | |
1076 | * @flag contains the desired (requested) permission set | |
1077 | * Return 0 if permission is granted. | |
8a076191 AD |
1078 | * @ipc_getsecid: |
1079 | * Get the secid associated with the ipc object. | |
1080 | * @ipcp contains the kernel IPC permission structure. | |
1081 | * @secid contains a pointer to the location where result will be saved. | |
1082 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
1083 | * |
1084 | * Security hooks for individual messages held in System V IPC message queues | |
1085 | * @msg_msg_alloc_security: | |
1086 | * Allocate and attach a security structure to the msg->security field. | |
1087 | * The security field is initialized to NULL when the structure is first | |
1088 | * created. | |
1089 | * @msg contains the message structure to be modified. | |
1090 | * Return 0 if operation was successful and permission is granted. | |
1091 | * @msg_msg_free_security: | |
1092 | * Deallocate the security structure for this message. | |
1093 | * @msg contains the message structure to be modified. | |
1094 | * | |
1095 | * Security hooks for System V IPC Message Queues | |
1096 | * | |
1097 | * @msg_queue_alloc_security: | |
1098 | * Allocate and attach a security structure to the | |
1099 | * msq->q_perm.security field. The security field is initialized to | |
1100 | * NULL when the structure is first created. | |
1101 | * @msq contains the message queue structure to be modified. | |
1102 | * Return 0 if operation was successful and permission is granted. | |
1103 | * @msg_queue_free_security: | |
1104 | * Deallocate security structure for this message queue. | |
1105 | * @msq contains the message queue structure to be modified. | |
1106 | * @msg_queue_associate: | |
1107 | * Check permission when a message queue is requested through the | |
1108 | * msgget system call. This hook is only called when returning the | |
1109 | * message queue identifier for an existing message queue, not when a | |
1110 | * new message queue is created. | |
1111 | * @msq contains the message queue to act upon. | |
1112 | * @msqflg contains the operation control flags. | |
1113 | * Return 0 if permission is granted. | |
1114 | * @msg_queue_msgctl: | |
1115 | * Check permission when a message control operation specified by @cmd | |
1116 | * is to be performed on the message queue @msq. | |
1117 | * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO. | |
1118 | * @msq contains the message queue to act upon. May be NULL. | |
1119 | * @cmd contains the operation to be performed. | |
7b41b173 | 1120 | * Return 0 if permission is granted. |
1da177e4 LT |
1121 | * @msg_queue_msgsnd: |
1122 | * Check permission before a message, @msg, is enqueued on the message | |
1123 | * queue, @msq. | |
1124 | * @msq contains the message queue to send message to. | |
1125 | * @msg contains the message to be enqueued. | |
1126 | * @msqflg contains operational flags. | |
1127 | * Return 0 if permission is granted. | |
1128 | * @msg_queue_msgrcv: | |
1129 | * Check permission before a message, @msg, is removed from the message | |
7b41b173 EP |
1130 | * queue, @msq. The @target task structure contains a pointer to the |
1131 | * process that will be receiving the message (not equal to the current | |
1da177e4 LT |
1132 | * process when inline receives are being performed). |
1133 | * @msq contains the message queue to retrieve message from. | |
1134 | * @msg contains the message destination. | |
1135 | * @target contains the task structure for recipient process. | |
1136 | * @type contains the type of message requested. | |
1137 | * @mode contains the operational flags. | |
1138 | * Return 0 if permission is granted. | |
1139 | * | |
1140 | * Security hooks for System V Shared Memory Segments | |
1141 | * | |
1142 | * @shm_alloc_security: | |
1143 | * Allocate and attach a security structure to the shp->shm_perm.security | |
1144 | * field. The security field is initialized to NULL when the structure is | |
1145 | * first created. | |
1146 | * @shp contains the shared memory structure to be modified. | |
1147 | * Return 0 if operation was successful and permission is granted. | |
1148 | * @shm_free_security: | |
1149 | * Deallocate the security struct for this memory segment. | |
1150 | * @shp contains the shared memory structure to be modified. | |
1151 | * @shm_associate: | |
1152 | * Check permission when a shared memory region is requested through the | |
1153 | * shmget system call. This hook is only called when returning the shared | |
1154 | * memory region identifier for an existing region, not when a new shared | |
1155 | * memory region is created. | |
1156 | * @shp contains the shared memory structure to be modified. | |
1157 | * @shmflg contains the operation control flags. | |
1158 | * Return 0 if permission is granted. | |
1159 | * @shm_shmctl: | |
1160 | * Check permission when a shared memory control operation specified by | |
1161 | * @cmd is to be performed on the shared memory region @shp. | |
1162 | * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO. | |
1163 | * @shp contains shared memory structure to be modified. | |
1164 | * @cmd contains the operation to be performed. | |
1165 | * Return 0 if permission is granted. | |
1166 | * @shm_shmat: | |
1167 | * Check permissions prior to allowing the shmat system call to attach the | |
1168 | * shared memory segment @shp to the data segment of the calling process. | |
1169 | * The attaching address is specified by @shmaddr. | |
1170 | * @shp contains the shared memory structure to be modified. | |
1171 | * @shmaddr contains the address to attach memory region to. | |
1172 | * @shmflg contains the operational flags. | |
1173 | * Return 0 if permission is granted. | |
1174 | * | |
1175 | * Security hooks for System V Semaphores | |
1176 | * | |
1177 | * @sem_alloc_security: | |
1178 | * Allocate and attach a security structure to the sma->sem_perm.security | |
1179 | * field. The security field is initialized to NULL when the structure is | |
1180 | * first created. | |
1181 | * @sma contains the semaphore structure | |
1182 | * Return 0 if operation was successful and permission is granted. | |
1183 | * @sem_free_security: | |
1184 | * deallocate security struct for this semaphore | |
1185 | * @sma contains the semaphore structure. | |
1186 | * @sem_associate: | |
1187 | * Check permission when a semaphore is requested through the semget | |
1188 | * system call. This hook is only called when returning the semaphore | |
1189 | * identifier for an existing semaphore, not when a new one must be | |
1190 | * created. | |
1191 | * @sma contains the semaphore structure. | |
1192 | * @semflg contains the operation control flags. | |
1193 | * Return 0 if permission is granted. | |
1194 | * @sem_semctl: | |
1195 | * Check permission when a semaphore operation specified by @cmd is to be | |
7b41b173 | 1196 | * performed on the semaphore @sma. The @sma may be NULL, e.g. for |
1da177e4 LT |
1197 | * IPC_INFO or SEM_INFO. |
1198 | * @sma contains the semaphore structure. May be NULL. | |
1199 | * @cmd contains the operation to be performed. | |
1200 | * Return 0 if permission is granted. | |
1201 | * @sem_semop | |
1202 | * Check permissions before performing operations on members of the | |
7b41b173 EP |
1203 | * semaphore set @sma. If the @alter flag is nonzero, the semaphore set |
1204 | * may be modified. | |
1da177e4 LT |
1205 | * @sma contains the semaphore structure. |
1206 | * @sops contains the operations to perform. | |
1207 | * @nsops contains the number of operations to perform. | |
1208 | * @alter contains the flag indicating whether changes are to be made. | |
1209 | * Return 0 if permission is granted. | |
1210 | * | |
9e48858f | 1211 | * @ptrace_access_check: |
5cd9c58f | 1212 | * Check permission before allowing the current process to trace the |
1da177e4 LT |
1213 | * @child process. |
1214 | * Security modules may also want to perform a process tracing check | |
1215 | * during an execve in the set_security or apply_creds hooks of | |
d84f4f99 | 1216 | * tracing check during an execve in the bprm_set_creds hook of |
1da177e4 LT |
1217 | * binprm_security_ops if the process is being traced and its security |
1218 | * attributes would be changed by the execve. | |
5cd9c58f | 1219 | * @child contains the task_struct structure for the target process. |
006ebb40 | 1220 | * @mode contains the PTRACE_MODE flags indicating the form of access. |
1da177e4 | 1221 | * Return 0 if permission is granted. |
5cd9c58f DH |
1222 | * @ptrace_traceme: |
1223 | * Check that the @parent process has sufficient permission to trace the | |
1224 | * current process before allowing the current process to present itself | |
1225 | * to the @parent process for tracing. | |
9e48858f | 1226 | * The parent process will still have to undergo the ptrace_access_check |
5cd9c58f DH |
1227 | * checks before it is allowed to trace this one. |
1228 | * @parent contains the task_struct structure for debugger process. | |
1229 | * Return 0 if permission is granted. | |
1da177e4 LT |
1230 | * @capget: |
1231 | * Get the @effective, @inheritable, and @permitted capability sets for | |
1232 | * the @target process. The hook may also perform permission checking to | |
1233 | * determine if the current process is allowed to see the capability sets | |
1234 | * of the @target process. | |
1235 | * @target contains the task_struct structure for target process. | |
1236 | * @effective contains the effective capability set. | |
1237 | * @inheritable contains the inheritable capability set. | |
1238 | * @permitted contains the permitted capability set. | |
1239 | * Return 0 if the capability sets were successfully obtained. | |
d84f4f99 | 1240 | * @capset: |
1da177e4 | 1241 | * Set the @effective, @inheritable, and @permitted capability sets for |
1cdcbec1 | 1242 | * the current process. |
d84f4f99 DH |
1243 | * @new contains the new credentials structure for target process. |
1244 | * @old contains the current credentials structure for target process. | |
1da177e4 LT |
1245 | * @effective contains the effective capability set. |
1246 | * @inheritable contains the inheritable capability set. | |
1247 | * @permitted contains the permitted capability set. | |
d84f4f99 | 1248 | * Return 0 and update @new if permission is granted. |
12b5989b | 1249 | * @capable: |
3699c53c DH |
1250 | * Check whether the @tsk process has the @cap capability in the indicated |
1251 | * credentials. | |
12b5989b | 1252 | * @tsk contains the task_struct for the process. |
3699c53c | 1253 | * @cred contains the credentials to use. |
12b5989b | 1254 | * @cap contains the capability <include/linux/capability.h>. |
3699c53c | 1255 | * @audit: Whether to write an audit message or not |
12b5989b | 1256 | * Return 0 if the capability is granted for @tsk. |
1da177e4 LT |
1257 | * @sysctl: |
1258 | * Check permission before accessing the @table sysctl variable in the | |
1259 | * manner specified by @op. | |
1260 | * @table contains the ctl_table structure for the sysctl variable. | |
1261 | * @op contains the operation (001 = search, 002 = write, 004 = read). | |
1262 | * Return 0 if permission is granted. | |
1da177e4 LT |
1263 | * @syslog: |
1264 | * Check permission before accessing the kernel message ring or changing | |
1265 | * logging to the console. | |
7b41b173 | 1266 | * See the syslog(2) manual page for an explanation of the @type values. |
1da177e4 | 1267 | * @type contains the type of action. |
00234592 | 1268 | * @from_file indicates the context of action (if it came from /proc). |
1da177e4 LT |
1269 | * Return 0 if permission is granted. |
1270 | * @settime: | |
1271 | * Check permission to change the system time. | |
1272 | * struct timespec and timezone are defined in include/linux/time.h | |
1273 | * @ts contains new time | |
1274 | * @tz contains new timezone | |
1275 | * Return 0 if permission is granted. | |
1276 | * @vm_enough_memory: | |
1277 | * Check permissions for allocating a new virtual mapping. | |
34b4e4aa | 1278 | * @mm contains the mm struct it is being added to. |
7b41b173 | 1279 | * @pages contains the number of pages. |
1da177e4 LT |
1280 | * Return 0 if permission is granted. |
1281 | * | |
dc49c1f9 CZ |
1282 | * @secid_to_secctx: |
1283 | * Convert secid to security context. | |
1284 | * @secid contains the security ID. | |
1285 | * @secdata contains the pointer that stores the converted security context. | |
63cb3449 | 1286 | * @secctx_to_secid: |
7b41b173 EP |
1287 | * Convert security context to secid. |
1288 | * @secid contains the pointer to the generated security ID. | |
1289 | * @secdata contains the security context. | |
dc49c1f9 CZ |
1290 | * |
1291 | * @release_secctx: | |
1292 | * Release the security context. | |
1293 | * @secdata contains the security context. | |
1294 | * @seclen contains the length of the security context. | |
1295 | * | |
03d37d25 AD |
1296 | * Security hooks for Audit |
1297 | * | |
1298 | * @audit_rule_init: | |
1299 | * Allocate and initialize an LSM audit rule structure. | |
1300 | * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h | |
1301 | * @op contains the operator the rule uses. | |
1302 | * @rulestr contains the context where the rule will be applied to. | |
1303 | * @lsmrule contains a pointer to receive the result. | |
1304 | * Return 0 if @lsmrule has been successfully set, | |
1305 | * -EINVAL in case of an invalid rule. | |
1306 | * | |
1307 | * @audit_rule_known: | |
1308 | * Specifies whether given @rule contains any fields related to current LSM. | |
1309 | * @rule contains the audit rule of interest. | |
1310 | * Return 1 in case of relation found, 0 otherwise. | |
1311 | * | |
1312 | * @audit_rule_match: | |
1313 | * Determine if given @secid matches a rule previously approved | |
1314 | * by @audit_rule_known. | |
1315 | * @secid contains the security id in question. | |
1316 | * @field contains the field which relates to current LSM. | |
1317 | * @op contains the operator that will be used for matching. | |
1318 | * @rule points to the audit rule that will be checked against. | |
1319 | * @actx points to the audit context associated with the check. | |
1320 | * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure. | |
1321 | * | |
1322 | * @audit_rule_free: | |
1323 | * Deallocate the LSM audit rule structure previously allocated by | |
1324 | * audit_rule_init. | |
1325 | * @rule contains the allocated rule | |
1326 | * | |
1ee65e37 DQ |
1327 | * @inode_notifysecctx: |
1328 | * Notify the security module of what the security context of an inode | |
1329 | * should be. Initializes the incore security context managed by the | |
1330 | * security module for this inode. Example usage: NFS client invokes | |
1331 | * this hook to initialize the security context in its incore inode to the | |
1332 | * value provided by the server for the file when the server returned the | |
1333 | * file's attributes to the client. | |
1334 | * | |
1335 | * Must be called with inode->i_mutex locked. | |
1336 | * | |
1337 | * @inode we wish to set the security context of. | |
1338 | * @ctx contains the string which we wish to set in the inode. | |
1339 | * @ctxlen contains the length of @ctx. | |
1340 | * | |
1341 | * @inode_setsecctx: | |
1342 | * Change the security context of an inode. Updates the | |
1343 | * incore security context managed by the security module and invokes the | |
1344 | * fs code as needed (via __vfs_setxattr_noperm) to update any backing | |
1345 | * xattrs that represent the context. Example usage: NFS server invokes | |
1346 | * this hook to change the security context in its incore inode and on the | |
1347 | * backing filesystem to a value provided by the client on a SETATTR | |
1348 | * operation. | |
1349 | * | |
1350 | * Must be called with inode->i_mutex locked. | |
1351 | * | |
1352 | * @dentry contains the inode we wish to set the security context of. | |
1353 | * @ctx contains the string which we wish to set in the inode. | |
1354 | * @ctxlen contains the length of @ctx. | |
1355 | * | |
1356 | * @inode_getsecctx: | |
1357 | * Returns a string containing all relavent security context information | |
1358 | * | |
1359 | * @inode we wish to set the security context of. | |
1360 | * @ctx is a pointer in which to place the allocated security context. | |
1361 | * @ctxlen points to the place to put the length of @ctx. | |
1da177e4 LT |
1362 | * This is the main security structure. |
1363 | */ | |
1364 | struct security_operations { | |
076c54c5 AD |
1365 | char name[SECURITY_NAME_MAX + 1]; |
1366 | ||
9e48858f | 1367 | int (*ptrace_access_check) (struct task_struct *child, unsigned int mode); |
5cd9c58f | 1368 | int (*ptrace_traceme) (struct task_struct *parent); |
7b41b173 EP |
1369 | int (*capget) (struct task_struct *target, |
1370 | kernel_cap_t *effective, | |
1371 | kernel_cap_t *inheritable, kernel_cap_t *permitted); | |
d84f4f99 DH |
1372 | int (*capset) (struct cred *new, |
1373 | const struct cred *old, | |
1374 | const kernel_cap_t *effective, | |
1375 | const kernel_cap_t *inheritable, | |
1376 | const kernel_cap_t *permitted); | |
3699c53c DH |
1377 | int (*capable) (struct task_struct *tsk, const struct cred *cred, |
1378 | int cap, int audit); | |
7b41b173 EP |
1379 | int (*sysctl) (struct ctl_table *table, int op); |
1380 | int (*quotactl) (int cmds, int type, int id, struct super_block *sb); | |
1381 | int (*quota_on) (struct dentry *dentry); | |
00234592 | 1382 | int (*syslog) (int type, bool from_file); |
1da177e4 | 1383 | int (*settime) (struct timespec *ts, struct timezone *tz); |
34b4e4aa | 1384 | int (*vm_enough_memory) (struct mm_struct *mm, long pages); |
1da177e4 | 1385 | |
a6f76f23 | 1386 | int (*bprm_set_creds) (struct linux_binprm *bprm); |
7b41b173 EP |
1387 | int (*bprm_check_security) (struct linux_binprm *bprm); |
1388 | int (*bprm_secureexec) (struct linux_binprm *bprm); | |
a6f76f23 DH |
1389 | void (*bprm_committing_creds) (struct linux_binprm *bprm); |
1390 | void (*bprm_committed_creds) (struct linux_binprm *bprm); | |
7b41b173 EP |
1391 | |
1392 | int (*sb_alloc_security) (struct super_block *sb); | |
1393 | void (*sb_free_security) (struct super_block *sb); | |
1394 | int (*sb_copy_data) (char *orig, char *copy); | |
12204e24 | 1395 | int (*sb_kern_mount) (struct super_block *sb, int flags, void *data); |
2069f457 | 1396 | int (*sb_show_options) (struct seq_file *m, struct super_block *sb); |
726c3342 | 1397 | int (*sb_statfs) (struct dentry *dentry); |
b5266eb4 | 1398 | int (*sb_mount) (char *dev_name, struct path *path, |
1da177e4 | 1399 | char *type, unsigned long flags, void *data); |
7b41b173 | 1400 | int (*sb_umount) (struct vfsmount *mnt, int flags); |
b5266eb4 AV |
1401 | int (*sb_pivotroot) (struct path *old_path, |
1402 | struct path *new_path); | |
e0007529 EP |
1403 | int (*sb_set_mnt_opts) (struct super_block *sb, |
1404 | struct security_mnt_opts *opts); | |
c9180a57 EP |
1405 | void (*sb_clone_mnt_opts) (const struct super_block *oldsb, |
1406 | struct super_block *newsb); | |
e0007529 | 1407 | int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts); |
1da177e4 | 1408 | |
be6d3e56 KT |
1409 | #ifdef CONFIG_SECURITY_PATH |
1410 | int (*path_unlink) (struct path *dir, struct dentry *dentry); | |
1411 | int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode); | |
1412 | int (*path_rmdir) (struct path *dir, struct dentry *dentry); | |
1413 | int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode, | |
1414 | unsigned int dev); | |
1415 | int (*path_truncate) (struct path *path, loff_t length, | |
1416 | unsigned int time_attrs); | |
1417 | int (*path_symlink) (struct path *dir, struct dentry *dentry, | |
1418 | const char *old_name); | |
1419 | int (*path_link) (struct dentry *old_dentry, struct path *new_dir, | |
1420 | struct dentry *new_dentry); | |
1421 | int (*path_rename) (struct path *old_dir, struct dentry *old_dentry, | |
1422 | struct path *new_dir, struct dentry *new_dentry); | |
89eda068 TH |
1423 | int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt, |
1424 | mode_t mode); | |
1425 | int (*path_chown) (struct path *path, uid_t uid, gid_t gid); | |
8b8efb44 | 1426 | int (*path_chroot) (struct path *path); |
be6d3e56 KT |
1427 | #endif |
1428 | ||
7b41b173 | 1429 | int (*inode_alloc_security) (struct inode *inode); |
1da177e4 | 1430 | void (*inode_free_security) (struct inode *inode); |
5e41ff9e SS |
1431 | int (*inode_init_security) (struct inode *inode, struct inode *dir, |
1432 | char **name, void **value, size_t *len); | |
1da177e4 | 1433 | int (*inode_create) (struct inode *dir, |
7b41b173 | 1434 | struct dentry *dentry, int mode); |
1da177e4 | 1435 | int (*inode_link) (struct dentry *old_dentry, |
7b41b173 | 1436 | struct inode *dir, struct dentry *new_dentry); |
1da177e4 LT |
1437 | int (*inode_unlink) (struct inode *dir, struct dentry *dentry); |
1438 | int (*inode_symlink) (struct inode *dir, | |
7b41b173 | 1439 | struct dentry *dentry, const char *old_name); |
1da177e4 | 1440 | int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode); |
1da177e4 LT |
1441 | int (*inode_rmdir) (struct inode *dir, struct dentry *dentry); |
1442 | int (*inode_mknod) (struct inode *dir, struct dentry *dentry, | |
7b41b173 | 1443 | int mode, dev_t dev); |
1da177e4 | 1444 | int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry, |
7b41b173 | 1445 | struct inode *new_dir, struct dentry *new_dentry); |
1da177e4 LT |
1446 | int (*inode_readlink) (struct dentry *dentry); |
1447 | int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd); | |
b77b0646 | 1448 | int (*inode_permission) (struct inode *inode, int mask); |
1da177e4 LT |
1449 | int (*inode_setattr) (struct dentry *dentry, struct iattr *attr); |
1450 | int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry); | |
8f0cfa52 DH |
1451 | int (*inode_setxattr) (struct dentry *dentry, const char *name, |
1452 | const void *value, size_t size, int flags); | |
1453 | void (*inode_post_setxattr) (struct dentry *dentry, const char *name, | |
1454 | const void *value, size_t size, int flags); | |
1455 | int (*inode_getxattr) (struct dentry *dentry, const char *name); | |
1da177e4 | 1456 | int (*inode_listxattr) (struct dentry *dentry); |
8f0cfa52 | 1457 | int (*inode_removexattr) (struct dentry *dentry, const char *name); |
b5376771 SH |
1458 | int (*inode_need_killpriv) (struct dentry *dentry); |
1459 | int (*inode_killpriv) (struct dentry *dentry); | |
7b41b173 EP |
1460 | int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc); |
1461 | int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags); | |
1462 | int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size); | |
1463 | void (*inode_getsecid) (const struct inode *inode, u32 *secid); | |
1464 | ||
1465 | int (*file_permission) (struct file *file, int mask); | |
1466 | int (*file_alloc_security) (struct file *file); | |
1467 | void (*file_free_security) (struct file *file); | |
1468 | int (*file_ioctl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1469 | unsigned long arg); |
7b41b173 | 1470 | int (*file_mmap) (struct file *file, |
ed032189 EP |
1471 | unsigned long reqprot, unsigned long prot, |
1472 | unsigned long flags, unsigned long addr, | |
1473 | unsigned long addr_only); | |
7b41b173 | 1474 | int (*file_mprotect) (struct vm_area_struct *vma, |
1da177e4 LT |
1475 | unsigned long reqprot, |
1476 | unsigned long prot); | |
7b41b173 EP |
1477 | int (*file_lock) (struct file *file, unsigned int cmd); |
1478 | int (*file_fcntl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1479 | unsigned long arg); |
7b41b173 EP |
1480 | int (*file_set_fowner) (struct file *file); |
1481 | int (*file_send_sigiotask) (struct task_struct *tsk, | |
1482 | struct fown_struct *fown, int sig); | |
1483 | int (*file_receive) (struct file *file); | |
745ca247 | 1484 | int (*dentry_open) (struct file *file, const struct cred *cred); |
1da177e4 LT |
1485 | |
1486 | int (*task_create) (unsigned long clone_flags); | |
ee18d64c | 1487 | int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp); |
f1752eec | 1488 | void (*cred_free) (struct cred *cred); |
d84f4f99 DH |
1489 | int (*cred_prepare)(struct cred *new, const struct cred *old, |
1490 | gfp_t gfp); | |
ee18d64c | 1491 | void (*cred_transfer)(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1492 | int (*kernel_act_as)(struct cred *new, u32 secid); |
1493 | int (*kernel_create_files_as)(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1494 | int (*kernel_module_request)(char *kmod_name); |
d84f4f99 DH |
1495 | int (*task_fix_setuid) (struct cred *new, const struct cred *old, |
1496 | int flags); | |
7b41b173 EP |
1497 | int (*task_setpgid) (struct task_struct *p, pid_t pgid); |
1498 | int (*task_getpgid) (struct task_struct *p); | |
1499 | int (*task_getsid) (struct task_struct *p); | |
1500 | void (*task_getsecid) (struct task_struct *p, u32 *secid); | |
7b41b173 EP |
1501 | int (*task_setnice) (struct task_struct *p, int nice); |
1502 | int (*task_setioprio) (struct task_struct *p, int ioprio); | |
1503 | int (*task_getioprio) (struct task_struct *p); | |
1504 | int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim); | |
1505 | int (*task_setscheduler) (struct task_struct *p, int policy, | |
1506 | struct sched_param *lp); | |
1507 | int (*task_getscheduler) (struct task_struct *p); | |
1508 | int (*task_movememory) (struct task_struct *p); | |
1509 | int (*task_kill) (struct task_struct *p, | |
1510 | struct siginfo *info, int sig, u32 secid); | |
1511 | int (*task_wait) (struct task_struct *p); | |
1da177e4 LT |
1512 | int (*task_prctl) (int option, unsigned long arg2, |
1513 | unsigned long arg3, unsigned long arg4, | |
d84f4f99 | 1514 | unsigned long arg5); |
7b41b173 | 1515 | void (*task_to_inode) (struct task_struct *p, struct inode *inode); |
1da177e4 | 1516 | |
7b41b173 | 1517 | int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag); |
8a076191 | 1518 | void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid); |
1da177e4 | 1519 | |
7b41b173 EP |
1520 | int (*msg_msg_alloc_security) (struct msg_msg *msg); |
1521 | void (*msg_msg_free_security) (struct msg_msg *msg); | |
1522 | ||
1523 | int (*msg_queue_alloc_security) (struct msg_queue *msq); | |
1524 | void (*msg_queue_free_security) (struct msg_queue *msq); | |
1525 | int (*msg_queue_associate) (struct msg_queue *msq, int msqflg); | |
1526 | int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd); | |
1527 | int (*msg_queue_msgsnd) (struct msg_queue *msq, | |
1528 | struct msg_msg *msg, int msqflg); | |
1529 | int (*msg_queue_msgrcv) (struct msg_queue *msq, | |
1530 | struct msg_msg *msg, | |
1531 | struct task_struct *target, | |
1da177e4 LT |
1532 | long type, int mode); |
1533 | ||
7b41b173 EP |
1534 | int (*shm_alloc_security) (struct shmid_kernel *shp); |
1535 | void (*shm_free_security) (struct shmid_kernel *shp); | |
1536 | int (*shm_associate) (struct shmid_kernel *shp, int shmflg); | |
1537 | int (*shm_shmctl) (struct shmid_kernel *shp, int cmd); | |
1538 | int (*shm_shmat) (struct shmid_kernel *shp, | |
1da177e4 LT |
1539 | char __user *shmaddr, int shmflg); |
1540 | ||
7b41b173 EP |
1541 | int (*sem_alloc_security) (struct sem_array *sma); |
1542 | void (*sem_free_security) (struct sem_array *sma); | |
1543 | int (*sem_associate) (struct sem_array *sma, int semflg); | |
1544 | int (*sem_semctl) (struct sem_array *sma, int cmd); | |
1545 | int (*sem_semop) (struct sem_array *sma, | |
1546 | struct sembuf *sops, unsigned nsops, int alter); | |
1da177e4 | 1547 | |
7b41b173 EP |
1548 | int (*netlink_send) (struct sock *sk, struct sk_buff *skb); |
1549 | int (*netlink_recv) (struct sk_buff *skb, int cap); | |
1da177e4 | 1550 | |
1da177e4 LT |
1551 | void (*d_instantiate) (struct dentry *dentry, struct inode *inode); |
1552 | ||
7b41b173 EP |
1553 | int (*getprocattr) (struct task_struct *p, char *name, char **value); |
1554 | int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size); | |
1555 | int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen); | |
7bf570dc | 1556 | int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid); |
7b41b173 | 1557 | void (*release_secctx) (char *secdata, u32 seclen); |
1da177e4 | 1558 | |
1ee65e37 DQ |
1559 | int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen); |
1560 | int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1561 | int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen); | |
1562 | ||
1da177e4 | 1563 | #ifdef CONFIG_SECURITY_NETWORK |
7b41b173 EP |
1564 | int (*unix_stream_connect) (struct socket *sock, |
1565 | struct socket *other, struct sock *newsk); | |
1566 | int (*unix_may_send) (struct socket *sock, struct socket *other); | |
1da177e4 LT |
1567 | |
1568 | int (*socket_create) (int family, int type, int protocol, int kern); | |
7b41b173 | 1569 | int (*socket_post_create) (struct socket *sock, int family, |
7420ed23 | 1570 | int type, int protocol, int kern); |
7b41b173 EP |
1571 | int (*socket_bind) (struct socket *sock, |
1572 | struct sockaddr *address, int addrlen); | |
1573 | int (*socket_connect) (struct socket *sock, | |
1574 | struct sockaddr *address, int addrlen); | |
1575 | int (*socket_listen) (struct socket *sock, int backlog); | |
1576 | int (*socket_accept) (struct socket *sock, struct socket *newsock); | |
7b41b173 EP |
1577 | int (*socket_sendmsg) (struct socket *sock, |
1578 | struct msghdr *msg, int size); | |
1579 | int (*socket_recvmsg) (struct socket *sock, | |
1580 | struct msghdr *msg, int size, int flags); | |
1581 | int (*socket_getsockname) (struct socket *sock); | |
1582 | int (*socket_getpeername) (struct socket *sock); | |
1583 | int (*socket_getsockopt) (struct socket *sock, int level, int optname); | |
1584 | int (*socket_setsockopt) (struct socket *sock, int level, int optname); | |
1585 | int (*socket_shutdown) (struct socket *sock, int how); | |
1586 | int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb); | |
2c7946a7 | 1587 | int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len); |
dc49c1f9 | 1588 | int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid); |
7d877f3b | 1589 | int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority); |
1da177e4 | 1590 | void (*sk_free_security) (struct sock *sk); |
892c141e | 1591 | void (*sk_clone_security) (const struct sock *sk, struct sock *newsk); |
beb8d13b | 1592 | void (*sk_getsecid) (struct sock *sk, u32 *secid); |
7b41b173 EP |
1593 | void (*sock_graft) (struct sock *sk, struct socket *parent); |
1594 | int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb, | |
1595 | struct request_sock *req); | |
1596 | void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req); | |
1597 | void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb); | |
1598 | void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl); | |
2b980dbd PM |
1599 | int (*tun_dev_create)(void); |
1600 | void (*tun_dev_post_create)(struct sock *sk); | |
1601 | int (*tun_dev_attach)(struct sock *sk); | |
1da177e4 | 1602 | #endif /* CONFIG_SECURITY_NETWORK */ |
29db9190 | 1603 | |
df71837d | 1604 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
03e1ad7b | 1605 | int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp, |
c1a856c9 | 1606 | struct xfrm_user_sec_ctx *sec_ctx); |
03e1ad7b PM |
1607 | int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx); |
1608 | void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx); | |
1609 | int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx); | |
e0d1caa7 | 1610 | int (*xfrm_state_alloc_security) (struct xfrm_state *x, |
c1a856c9 | 1611 | struct xfrm_user_sec_ctx *sec_ctx, |
e0d1caa7 | 1612 | u32 secid); |
df71837d | 1613 | void (*xfrm_state_free_security) (struct xfrm_state *x); |
c8c05a8e | 1614 | int (*xfrm_state_delete_security) (struct xfrm_state *x); |
7b41b173 EP |
1615 | int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
1616 | int (*xfrm_state_pol_flow_match) (struct xfrm_state *x, | |
1617 | struct xfrm_policy *xp, | |
1618 | struct flowi *fl); | |
1619 | int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall); | |
df71837d TJ |
1620 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
1621 | ||
29db9190 DH |
1622 | /* key management security hooks */ |
1623 | #ifdef CONFIG_KEYS | |
d84f4f99 | 1624 | int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags); |
7b41b173 EP |
1625 | void (*key_free) (struct key *key); |
1626 | int (*key_permission) (key_ref_t key_ref, | |
d84f4f99 | 1627 | const struct cred *cred, |
7b41b173 | 1628 | key_perm_t perm); |
70a5bb72 | 1629 | int (*key_getsecurity)(struct key *key, char **_buffer); |
29db9190 DH |
1630 | #endif /* CONFIG_KEYS */ |
1631 | ||
03d37d25 | 1632 | #ifdef CONFIG_AUDIT |
7b41b173 EP |
1633 | int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule); |
1634 | int (*audit_rule_known) (struct audit_krule *krule); | |
1635 | int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule, | |
1636 | struct audit_context *actx); | |
1637 | void (*audit_rule_free) (void *lsmrule); | |
03d37d25 | 1638 | #endif /* CONFIG_AUDIT */ |
1da177e4 LT |
1639 | }; |
1640 | ||
1da177e4 | 1641 | /* prototypes */ |
7b41b173 | 1642 | extern int security_init(void); |
076c54c5 | 1643 | extern int security_module_enable(struct security_operations *ops); |
7b41b173 | 1644 | extern int register_security(struct security_operations *ops); |
1da177e4 | 1645 | |
20510f2f | 1646 | /* Security operations */ |
9e48858f | 1647 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 1648 | int security_ptrace_traceme(struct task_struct *parent); |
20510f2f | 1649 | int security_capget(struct task_struct *target, |
7b41b173 EP |
1650 | kernel_cap_t *effective, |
1651 | kernel_cap_t *inheritable, | |
1652 | kernel_cap_t *permitted); | |
d84f4f99 DH |
1653 | int security_capset(struct cred *new, const struct cred *old, |
1654 | const kernel_cap_t *effective, | |
1655 | const kernel_cap_t *inheritable, | |
1656 | const kernel_cap_t *permitted); | |
3699c53c DH |
1657 | int security_capable(int cap); |
1658 | int security_real_capable(struct task_struct *tsk, int cap); | |
1659 | int security_real_capable_noaudit(struct task_struct *tsk, int cap); | |
20510f2f JM |
1660 | int security_sysctl(struct ctl_table *table, int op); |
1661 | int security_quotactl(int cmds, int type, int id, struct super_block *sb); | |
1662 | int security_quota_on(struct dentry *dentry); | |
00234592 | 1663 | int security_syslog(int type, bool from_file); |
20510f2f JM |
1664 | int security_settime(struct timespec *ts, struct timezone *tz); |
1665 | int security_vm_enough_memory(long pages); | |
1666 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); | |
731572d3 | 1667 | int security_vm_enough_memory_kern(long pages); |
a6f76f23 | 1668 | int security_bprm_set_creds(struct linux_binprm *bprm); |
20510f2f | 1669 | int security_bprm_check(struct linux_binprm *bprm); |
a6f76f23 DH |
1670 | void security_bprm_committing_creds(struct linux_binprm *bprm); |
1671 | void security_bprm_committed_creds(struct linux_binprm *bprm); | |
20510f2f JM |
1672 | int security_bprm_secureexec(struct linux_binprm *bprm); |
1673 | int security_sb_alloc(struct super_block *sb); | |
1674 | void security_sb_free(struct super_block *sb); | |
e0007529 | 1675 | int security_sb_copy_data(char *orig, char *copy); |
12204e24 | 1676 | int security_sb_kern_mount(struct super_block *sb, int flags, void *data); |
2069f457 | 1677 | int security_sb_show_options(struct seq_file *m, struct super_block *sb); |
20510f2f | 1678 | int security_sb_statfs(struct dentry *dentry); |
b5266eb4 | 1679 | int security_sb_mount(char *dev_name, struct path *path, |
7b41b173 | 1680 | char *type, unsigned long flags, void *data); |
20510f2f | 1681 | int security_sb_umount(struct vfsmount *mnt, int flags); |
b5266eb4 | 1682 | int security_sb_pivotroot(struct path *old_path, struct path *new_path); |
e0007529 | 1683 | int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts); |
c9180a57 EP |
1684 | void security_sb_clone_mnt_opts(const struct super_block *oldsb, |
1685 | struct super_block *newsb); | |
e0007529 | 1686 | int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts); |
c9180a57 | 1687 | |
20510f2f JM |
1688 | int security_inode_alloc(struct inode *inode); |
1689 | void security_inode_free(struct inode *inode); | |
1690 | int security_inode_init_security(struct inode *inode, struct inode *dir, | |
1691 | char **name, void **value, size_t *len); | |
1692 | int security_inode_create(struct inode *dir, struct dentry *dentry, int mode); | |
1693 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, | |
1694 | struct dentry *new_dentry); | |
1695 | int security_inode_unlink(struct inode *dir, struct dentry *dentry); | |
1696 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
7b41b173 | 1697 | const char *old_name); |
20510f2f JM |
1698 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode); |
1699 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry); | |
1700 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev); | |
1701 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, | |
7b41b173 | 1702 | struct inode *new_dir, struct dentry *new_dentry); |
20510f2f JM |
1703 | int security_inode_readlink(struct dentry *dentry); |
1704 | int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd); | |
b77b0646 | 1705 | int security_inode_permission(struct inode *inode, int mask); |
20510f2f JM |
1706 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr); |
1707 | int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry); | |
8f0cfa52 DH |
1708 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
1709 | const void *value, size_t size, int flags); | |
1710 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, | |
1711 | const void *value, size_t size, int flags); | |
1712 | int security_inode_getxattr(struct dentry *dentry, const char *name); | |
20510f2f | 1713 | int security_inode_listxattr(struct dentry *dentry); |
8f0cfa52 | 1714 | int security_inode_removexattr(struct dentry *dentry, const char *name); |
b5376771 SH |
1715 | int security_inode_need_killpriv(struct dentry *dentry); |
1716 | int security_inode_killpriv(struct dentry *dentry); | |
42492594 | 1717 | int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc); |
20510f2f JM |
1718 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); |
1719 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); | |
8a076191 | 1720 | void security_inode_getsecid(const struct inode *inode, u32 *secid); |
20510f2f JM |
1721 | int security_file_permission(struct file *file, int mask); |
1722 | int security_file_alloc(struct file *file); | |
1723 | void security_file_free(struct file *file); | |
1724 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); | |
1725 | int security_file_mmap(struct file *file, unsigned long reqprot, | |
1726 | unsigned long prot, unsigned long flags, | |
1727 | unsigned long addr, unsigned long addr_only); | |
1728 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, | |
7b41b173 | 1729 | unsigned long prot); |
20510f2f JM |
1730 | int security_file_lock(struct file *file, unsigned int cmd); |
1731 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); | |
1732 | int security_file_set_fowner(struct file *file); | |
1733 | int security_file_send_sigiotask(struct task_struct *tsk, | |
7b41b173 | 1734 | struct fown_struct *fown, int sig); |
20510f2f | 1735 | int security_file_receive(struct file *file); |
745ca247 | 1736 | int security_dentry_open(struct file *file, const struct cred *cred); |
20510f2f | 1737 | int security_task_create(unsigned long clone_flags); |
ee18d64c | 1738 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); |
f1752eec | 1739 | void security_cred_free(struct cred *cred); |
d84f4f99 | 1740 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); |
ee18d64c | 1741 | void security_transfer_creds(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1742 | int security_kernel_act_as(struct cred *new, u32 secid); |
1743 | int security_kernel_create_files_as(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1744 | int security_kernel_module_request(char *kmod_name); |
d84f4f99 DH |
1745 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1746 | int flags); | |
20510f2f JM |
1747 | int security_task_setpgid(struct task_struct *p, pid_t pgid); |
1748 | int security_task_getpgid(struct task_struct *p); | |
1749 | int security_task_getsid(struct task_struct *p); | |
1750 | void security_task_getsecid(struct task_struct *p, u32 *secid); | |
20510f2f JM |
1751 | int security_task_setnice(struct task_struct *p, int nice); |
1752 | int security_task_setioprio(struct task_struct *p, int ioprio); | |
1753 | int security_task_getioprio(struct task_struct *p); | |
1754 | int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim); | |
1755 | int security_task_setscheduler(struct task_struct *p, | |
1756 | int policy, struct sched_param *lp); | |
1757 | int security_task_getscheduler(struct task_struct *p); | |
1758 | int security_task_movememory(struct task_struct *p); | |
1759 | int security_task_kill(struct task_struct *p, struct siginfo *info, | |
1760 | int sig, u32 secid); | |
1761 | int security_task_wait(struct task_struct *p); | |
1762 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, | |
d84f4f99 | 1763 | unsigned long arg4, unsigned long arg5); |
20510f2f JM |
1764 | void security_task_to_inode(struct task_struct *p, struct inode *inode); |
1765 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); | |
8a076191 | 1766 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid); |
20510f2f JM |
1767 | int security_msg_msg_alloc(struct msg_msg *msg); |
1768 | void security_msg_msg_free(struct msg_msg *msg); | |
1769 | int security_msg_queue_alloc(struct msg_queue *msq); | |
1770 | void security_msg_queue_free(struct msg_queue *msq); | |
1771 | int security_msg_queue_associate(struct msg_queue *msq, int msqflg); | |
1772 | int security_msg_queue_msgctl(struct msg_queue *msq, int cmd); | |
1773 | int security_msg_queue_msgsnd(struct msg_queue *msq, | |
7b41b173 | 1774 | struct msg_msg *msg, int msqflg); |
20510f2f | 1775 | int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, |
7b41b173 | 1776 | struct task_struct *target, long type, int mode); |
20510f2f JM |
1777 | int security_shm_alloc(struct shmid_kernel *shp); |
1778 | void security_shm_free(struct shmid_kernel *shp); | |
1779 | int security_shm_associate(struct shmid_kernel *shp, int shmflg); | |
1780 | int security_shm_shmctl(struct shmid_kernel *shp, int cmd); | |
1781 | int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg); | |
1782 | int security_sem_alloc(struct sem_array *sma); | |
1783 | void security_sem_free(struct sem_array *sma); | |
1784 | int security_sem_associate(struct sem_array *sma, int semflg); | |
1785 | int security_sem_semctl(struct sem_array *sma, int cmd); | |
1786 | int security_sem_semop(struct sem_array *sma, struct sembuf *sops, | |
1787 | unsigned nsops, int alter); | |
7b41b173 | 1788 | void security_d_instantiate(struct dentry *dentry, struct inode *inode); |
20510f2f JM |
1789 | int security_getprocattr(struct task_struct *p, char *name, char **value); |
1790 | int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size); | |
1791 | int security_netlink_send(struct sock *sk, struct sk_buff *skb); | |
1792 | int security_netlink_recv(struct sk_buff *skb, int cap); | |
1793 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); | |
7bf570dc | 1794 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); |
20510f2f JM |
1795 | void security_release_secctx(char *secdata, u32 seclen); |
1796 | ||
1ee65e37 DQ |
1797 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); |
1798 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1799 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); | |
1da177e4 | 1800 | #else /* CONFIG_SECURITY */ |
e0007529 EP |
1801 | struct security_mnt_opts { |
1802 | }; | |
1803 | ||
1804 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
1805 | { | |
1806 | } | |
1807 | ||
1808 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
1809 | { | |
1810 | } | |
1da177e4 LT |
1811 | |
1812 | /* | |
1813 | * This is the default capabilities functionality. Most of these functions | |
1814 | * are just stubbed out, but a few must call the proper capable code. | |
1815 | */ | |
1816 | ||
1817 | static inline int security_init(void) | |
1818 | { | |
1819 | return 0; | |
1820 | } | |
1821 | ||
9e48858f | 1822 | static inline int security_ptrace_access_check(struct task_struct *child, |
5cd9c58f DH |
1823 | unsigned int mode) |
1824 | { | |
9e48858f | 1825 | return cap_ptrace_access_check(child, mode); |
5cd9c58f DH |
1826 | } |
1827 | ||
5e186b57 | 1828 | static inline int security_ptrace_traceme(struct task_struct *parent) |
1da177e4 | 1829 | { |
5cd9c58f | 1830 | return cap_ptrace_traceme(parent); |
1da177e4 LT |
1831 | } |
1832 | ||
7b41b173 | 1833 | static inline int security_capget(struct task_struct *target, |
1da177e4 LT |
1834 | kernel_cap_t *effective, |
1835 | kernel_cap_t *inheritable, | |
1836 | kernel_cap_t *permitted) | |
1837 | { | |
7b41b173 | 1838 | return cap_capget(target, effective, inheritable, permitted); |
1da177e4 LT |
1839 | } |
1840 | ||
d84f4f99 DH |
1841 | static inline int security_capset(struct cred *new, |
1842 | const struct cred *old, | |
1843 | const kernel_cap_t *effective, | |
1844 | const kernel_cap_t *inheritable, | |
1845 | const kernel_cap_t *permitted) | |
1da177e4 | 1846 | { |
d84f4f99 | 1847 | return cap_capset(new, old, effective, inheritable, permitted); |
1da177e4 LT |
1848 | } |
1849 | ||
3699c53c | 1850 | static inline int security_capable(int cap) |
12b5989b | 1851 | { |
3699c53c | 1852 | return cap_capable(current, current_cred(), cap, SECURITY_CAP_AUDIT); |
06112163 EP |
1853 | } |
1854 | ||
3699c53c | 1855 | static inline int security_real_capable(struct task_struct *tsk, int cap) |
06112163 | 1856 | { |
3699c53c DH |
1857 | int ret; |
1858 | ||
1859 | rcu_read_lock(); | |
1860 | ret = cap_capable(tsk, __task_cred(tsk), cap, SECURITY_CAP_AUDIT); | |
1861 | rcu_read_unlock(); | |
1862 | return ret; | |
1863 | } | |
1864 | ||
1865 | static inline | |
1866 | int security_real_capable_noaudit(struct task_struct *tsk, int cap) | |
1867 | { | |
1868 | int ret; | |
1869 | ||
1870 | rcu_read_lock(); | |
1871 | ret = cap_capable(tsk, __task_cred(tsk), cap, | |
1872 | SECURITY_CAP_NOAUDIT); | |
1873 | rcu_read_unlock(); | |
1874 | return ret; | |
12b5989b CW |
1875 | } |
1876 | ||
1da177e4 LT |
1877 | static inline int security_sysctl(struct ctl_table *table, int op) |
1878 | { | |
1879 | return 0; | |
1880 | } | |
1881 | ||
7b41b173 EP |
1882 | static inline int security_quotactl(int cmds, int type, int id, |
1883 | struct super_block *sb) | |
1da177e4 LT |
1884 | { |
1885 | return 0; | |
1886 | } | |
1887 | ||
7b41b173 | 1888 | static inline int security_quota_on(struct dentry *dentry) |
1da177e4 LT |
1889 | { |
1890 | return 0; | |
1891 | } | |
1892 | ||
00234592 | 1893 | static inline int security_syslog(int type, bool from_file) |
1da177e4 | 1894 | { |
00234592 | 1895 | return cap_syslog(type, from_file); |
1da177e4 LT |
1896 | } |
1897 | ||
1898 | static inline int security_settime(struct timespec *ts, struct timezone *tz) | |
1899 | { | |
1900 | return cap_settime(ts, tz); | |
1901 | } | |
1902 | ||
1903 | static inline int security_vm_enough_memory(long pages) | |
1904 | { | |
1b79cd04 | 1905 | WARN_ON(current->mm == NULL); |
34b4e4aa AC |
1906 | return cap_vm_enough_memory(current->mm, pages); |
1907 | } | |
1908 | ||
1b79cd04 | 1909 | static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
731572d3 | 1910 | { |
1b79cd04 JO |
1911 | WARN_ON(mm == NULL); |
1912 | return cap_vm_enough_memory(mm, pages); | |
731572d3 AC |
1913 | } |
1914 | ||
1b79cd04 | 1915 | static inline int security_vm_enough_memory_kern(long pages) |
34b4e4aa | 1916 | { |
1b79cd04 JO |
1917 | /* If current->mm is a kernel thread then we will pass NULL, |
1918 | for this specific case that is fine */ | |
1919 | return cap_vm_enough_memory(current->mm, pages); | |
1da177e4 LT |
1920 | } |
1921 | ||
a6f76f23 | 1922 | static inline int security_bprm_set_creds(struct linux_binprm *bprm) |
7b41b173 | 1923 | { |
a6f76f23 | 1924 | return cap_bprm_set_creds(bprm); |
1da177e4 LT |
1925 | } |
1926 | ||
a6f76f23 | 1927 | static inline int security_bprm_check(struct linux_binprm *bprm) |
1da177e4 | 1928 | { |
a6f76f23 | 1929 | return 0; |
1da177e4 LT |
1930 | } |
1931 | ||
a6f76f23 | 1932 | static inline void security_bprm_committing_creds(struct linux_binprm *bprm) |
1da177e4 | 1933 | { |
1da177e4 LT |
1934 | } |
1935 | ||
a6f76f23 | 1936 | static inline void security_bprm_committed_creds(struct linux_binprm *bprm) |
1da177e4 | 1937 | { |
1da177e4 LT |
1938 | } |
1939 | ||
7b41b173 | 1940 | static inline int security_bprm_secureexec(struct linux_binprm *bprm) |
1da177e4 LT |
1941 | { |
1942 | return cap_bprm_secureexec(bprm); | |
1943 | } | |
1944 | ||
7b41b173 | 1945 | static inline int security_sb_alloc(struct super_block *sb) |
1da177e4 LT |
1946 | { |
1947 | return 0; | |
1948 | } | |
1949 | ||
7b41b173 | 1950 | static inline void security_sb_free(struct super_block *sb) |
1da177e4 LT |
1951 | { } |
1952 | ||
7b41b173 | 1953 | static inline int security_sb_copy_data(char *orig, char *copy) |
1da177e4 LT |
1954 | { |
1955 | return 0; | |
1956 | } | |
1957 | ||
12204e24 | 1958 | static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data) |
1da177e4 LT |
1959 | { |
1960 | return 0; | |
1961 | } | |
1962 | ||
2069f457 EP |
1963 | static inline int security_sb_show_options(struct seq_file *m, |
1964 | struct super_block *sb) | |
1965 | { | |
1966 | return 0; | |
1967 | } | |
1968 | ||
7b41b173 | 1969 | static inline int security_sb_statfs(struct dentry *dentry) |
1da177e4 LT |
1970 | { |
1971 | return 0; | |
1972 | } | |
1973 | ||
7b41b173 | 1974 | static inline int security_sb_mount(char *dev_name, struct path *path, |
1da177e4 LT |
1975 | char *type, unsigned long flags, |
1976 | void *data) | |
1977 | { | |
1978 | return 0; | |
1979 | } | |
1980 | ||
7b41b173 | 1981 | static inline int security_sb_umount(struct vfsmount *mnt, int flags) |
1da177e4 LT |
1982 | { |
1983 | return 0; | |
1984 | } | |
1985 | ||
7b41b173 EP |
1986 | static inline int security_sb_pivotroot(struct path *old_path, |
1987 | struct path *new_path) | |
1da177e4 LT |
1988 | { |
1989 | return 0; | |
1990 | } | |
1991 | ||
e0007529 EP |
1992 | static inline int security_sb_set_mnt_opts(struct super_block *sb, |
1993 | struct security_mnt_opts *opts) | |
1994 | { | |
1995 | return 0; | |
1996 | } | |
1997 | ||
1998 | static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb, | |
1999 | struct super_block *newsb) | |
2000 | { } | |
2001 | ||
2002 | static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) | |
2003 | { | |
2004 | return 0; | |
2005 | } | |
1da177e4 | 2006 | |
7b41b173 | 2007 | static inline int security_inode_alloc(struct inode *inode) |
1da177e4 LT |
2008 | { |
2009 | return 0; | |
2010 | } | |
2011 | ||
7b41b173 | 2012 | static inline void security_inode_free(struct inode *inode) |
1da177e4 | 2013 | { } |
5e41ff9e | 2014 | |
7b41b173 | 2015 | static inline int security_inode_init_security(struct inode *inode, |
5e41ff9e SS |
2016 | struct inode *dir, |
2017 | char **name, | |
2018 | void **value, | |
2019 | size_t *len) | |
2020 | { | |
2021 | return -EOPNOTSUPP; | |
2022 | } | |
7b41b173 EP |
2023 | |
2024 | static inline int security_inode_create(struct inode *dir, | |
1da177e4 LT |
2025 | struct dentry *dentry, |
2026 | int mode) | |
2027 | { | |
2028 | return 0; | |
2029 | } | |
2030 | ||
7b41b173 | 2031 | static inline int security_inode_link(struct dentry *old_dentry, |
1da177e4 LT |
2032 | struct inode *dir, |
2033 | struct dentry *new_dentry) | |
2034 | { | |
2035 | return 0; | |
2036 | } | |
2037 | ||
7b41b173 | 2038 | static inline int security_inode_unlink(struct inode *dir, |
1da177e4 LT |
2039 | struct dentry *dentry) |
2040 | { | |
2041 | return 0; | |
2042 | } | |
2043 | ||
7b41b173 | 2044 | static inline int security_inode_symlink(struct inode *dir, |
1da177e4 LT |
2045 | struct dentry *dentry, |
2046 | const char *old_name) | |
2047 | { | |
2048 | return 0; | |
2049 | } | |
2050 | ||
7b41b173 | 2051 | static inline int security_inode_mkdir(struct inode *dir, |
1da177e4 LT |
2052 | struct dentry *dentry, |
2053 | int mode) | |
2054 | { | |
2055 | return 0; | |
2056 | } | |
2057 | ||
7b41b173 | 2058 | static inline int security_inode_rmdir(struct inode *dir, |
1da177e4 LT |
2059 | struct dentry *dentry) |
2060 | { | |
2061 | return 0; | |
2062 | } | |
2063 | ||
7b41b173 | 2064 | static inline int security_inode_mknod(struct inode *dir, |
1da177e4 LT |
2065 | struct dentry *dentry, |
2066 | int mode, dev_t dev) | |
2067 | { | |
2068 | return 0; | |
2069 | } | |
2070 | ||
7b41b173 | 2071 | static inline int security_inode_rename(struct inode *old_dir, |
1da177e4 LT |
2072 | struct dentry *old_dentry, |
2073 | struct inode *new_dir, | |
2074 | struct dentry *new_dentry) | |
2075 | { | |
2076 | return 0; | |
2077 | } | |
2078 | ||
7b41b173 | 2079 | static inline int security_inode_readlink(struct dentry *dentry) |
1da177e4 LT |
2080 | { |
2081 | return 0; | |
2082 | } | |
2083 | ||
7b41b173 | 2084 | static inline int security_inode_follow_link(struct dentry *dentry, |
1da177e4 LT |
2085 | struct nameidata *nd) |
2086 | { | |
2087 | return 0; | |
2088 | } | |
2089 | ||
b77b0646 | 2090 | static inline int security_inode_permission(struct inode *inode, int mask) |
1da177e4 LT |
2091 | { |
2092 | return 0; | |
2093 | } | |
2094 | ||
7b41b173 | 2095 | static inline int security_inode_setattr(struct dentry *dentry, |
1da177e4 LT |
2096 | struct iattr *attr) |
2097 | { | |
2098 | return 0; | |
2099 | } | |
2100 | ||
7b41b173 | 2101 | static inline int security_inode_getattr(struct vfsmount *mnt, |
1da177e4 LT |
2102 | struct dentry *dentry) |
2103 | { | |
2104 | return 0; | |
2105 | } | |
2106 | ||
8f0cfa52 DH |
2107 | static inline int security_inode_setxattr(struct dentry *dentry, |
2108 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2109 | { |
2110 | return cap_inode_setxattr(dentry, name, value, size, flags); | |
2111 | } | |
2112 | ||
8f0cfa52 DH |
2113 | static inline void security_inode_post_setxattr(struct dentry *dentry, |
2114 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2115 | { } |
2116 | ||
8f0cfa52 DH |
2117 | static inline int security_inode_getxattr(struct dentry *dentry, |
2118 | const char *name) | |
1da177e4 LT |
2119 | { |
2120 | return 0; | |
2121 | } | |
2122 | ||
7b41b173 | 2123 | static inline int security_inode_listxattr(struct dentry *dentry) |
1da177e4 LT |
2124 | { |
2125 | return 0; | |
2126 | } | |
2127 | ||
8f0cfa52 DH |
2128 | static inline int security_inode_removexattr(struct dentry *dentry, |
2129 | const char *name) | |
1da177e4 LT |
2130 | { |
2131 | return cap_inode_removexattr(dentry, name); | |
2132 | } | |
2133 | ||
b5376771 SH |
2134 | static inline int security_inode_need_killpriv(struct dentry *dentry) |
2135 | { | |
2136 | return cap_inode_need_killpriv(dentry); | |
2137 | } | |
2138 | ||
2139 | static inline int security_inode_killpriv(struct dentry *dentry) | |
2140 | { | |
2141 | return cap_inode_killpriv(dentry); | |
2142 | } | |
2143 | ||
42492594 | 2144 | static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) |
1da177e4 LT |
2145 | { |
2146 | return -EOPNOTSUPP; | |
2147 | } | |
2148 | ||
2149 | static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
2150 | { | |
2151 | return -EOPNOTSUPP; | |
2152 | } | |
2153 | ||
2154 | static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
2155 | { | |
2156 | return 0; | |
2157 | } | |
2158 | ||
8a076191 AD |
2159 | static inline void security_inode_getsecid(const struct inode *inode, u32 *secid) |
2160 | { | |
2161 | *secid = 0; | |
2162 | } | |
2163 | ||
7b41b173 | 2164 | static inline int security_file_permission(struct file *file, int mask) |
1da177e4 LT |
2165 | { |
2166 | return 0; | |
2167 | } | |
2168 | ||
7b41b173 | 2169 | static inline int security_file_alloc(struct file *file) |
1da177e4 LT |
2170 | { |
2171 | return 0; | |
2172 | } | |
2173 | ||
7b41b173 | 2174 | static inline void security_file_free(struct file *file) |
1da177e4 LT |
2175 | { } |
2176 | ||
7b41b173 EP |
2177 | static inline int security_file_ioctl(struct file *file, unsigned int cmd, |
2178 | unsigned long arg) | |
1da177e4 LT |
2179 | { |
2180 | return 0; | |
2181 | } | |
2182 | ||
7b41b173 EP |
2183 | static inline int security_file_mmap(struct file *file, unsigned long reqprot, |
2184 | unsigned long prot, | |
2185 | unsigned long flags, | |
2186 | unsigned long addr, | |
2187 | unsigned long addr_only) | |
1da177e4 | 2188 | { |
7c73875e | 2189 | return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only); |
1da177e4 LT |
2190 | } |
2191 | ||
7b41b173 EP |
2192 | static inline int security_file_mprotect(struct vm_area_struct *vma, |
2193 | unsigned long reqprot, | |
2194 | unsigned long prot) | |
1da177e4 LT |
2195 | { |
2196 | return 0; | |
2197 | } | |
2198 | ||
7b41b173 | 2199 | static inline int security_file_lock(struct file *file, unsigned int cmd) |
1da177e4 LT |
2200 | { |
2201 | return 0; | |
2202 | } | |
2203 | ||
7b41b173 EP |
2204 | static inline int security_file_fcntl(struct file *file, unsigned int cmd, |
2205 | unsigned long arg) | |
1da177e4 LT |
2206 | { |
2207 | return 0; | |
2208 | } | |
2209 | ||
7b41b173 | 2210 | static inline int security_file_set_fowner(struct file *file) |
1da177e4 LT |
2211 | { |
2212 | return 0; | |
2213 | } | |
2214 | ||
7b41b173 EP |
2215 | static inline int security_file_send_sigiotask(struct task_struct *tsk, |
2216 | struct fown_struct *fown, | |
2217 | int sig) | |
1da177e4 LT |
2218 | { |
2219 | return 0; | |
2220 | } | |
2221 | ||
7b41b173 | 2222 | static inline int security_file_receive(struct file *file) |
1da177e4 LT |
2223 | { |
2224 | return 0; | |
2225 | } | |
2226 | ||
745ca247 DH |
2227 | static inline int security_dentry_open(struct file *file, |
2228 | const struct cred *cred) | |
788e7dd4 YN |
2229 | { |
2230 | return 0; | |
2231 | } | |
2232 | ||
7b41b173 | 2233 | static inline int security_task_create(unsigned long clone_flags) |
1da177e4 LT |
2234 | { |
2235 | return 0; | |
2236 | } | |
2237 | ||
945af7c3 DH |
2238 | static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
2239 | { | |
2240 | return 0; | |
2241 | } | |
ee18d64c | 2242 | |
d84f4f99 DH |
2243 | static inline void security_cred_free(struct cred *cred) |
2244 | { } | |
2245 | ||
2246 | static inline int security_prepare_creds(struct cred *new, | |
2247 | const struct cred *old, | |
2248 | gfp_t gfp) | |
1da177e4 LT |
2249 | { |
2250 | return 0; | |
2251 | } | |
2252 | ||
ee18d64c DH |
2253 | static inline void security_transfer_creds(struct cred *new, |
2254 | const struct cred *old) | |
2255 | { | |
2256 | } | |
2257 | ||
3a3b7ce9 DH |
2258 | static inline int security_kernel_act_as(struct cred *cred, u32 secid) |
2259 | { | |
2260 | return 0; | |
2261 | } | |
2262 | ||
2263 | static inline int security_kernel_create_files_as(struct cred *cred, | |
2264 | struct inode *inode) | |
2265 | { | |
2266 | return 0; | |
2267 | } | |
2268 | ||
dd8dbf2e | 2269 | static inline int security_kernel_module_request(char *kmod_name) |
9188499c EP |
2270 | { |
2271 | return 0; | |
1da177e4 LT |
2272 | } |
2273 | ||
d84f4f99 DH |
2274 | static inline int security_task_fix_setuid(struct cred *new, |
2275 | const struct cred *old, | |
2276 | int flags) | |
1da177e4 | 2277 | { |
d84f4f99 | 2278 | return cap_task_fix_setuid(new, old, flags); |
1da177e4 LT |
2279 | } |
2280 | ||
7b41b173 | 2281 | static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1da177e4 LT |
2282 | { |
2283 | return 0; | |
2284 | } | |
2285 | ||
7b41b173 | 2286 | static inline int security_task_getpgid(struct task_struct *p) |
1da177e4 LT |
2287 | { |
2288 | return 0; | |
2289 | } | |
2290 | ||
7b41b173 | 2291 | static inline int security_task_getsid(struct task_struct *p) |
1da177e4 LT |
2292 | { |
2293 | return 0; | |
2294 | } | |
2295 | ||
7b41b173 | 2296 | static inline void security_task_getsecid(struct task_struct *p, u32 *secid) |
8a076191 AD |
2297 | { |
2298 | *secid = 0; | |
2299 | } | |
f9008e4c | 2300 | |
7b41b173 | 2301 | static inline int security_task_setnice(struct task_struct *p, int nice) |
1da177e4 | 2302 | { |
b5376771 | 2303 | return cap_task_setnice(p, nice); |
1da177e4 LT |
2304 | } |
2305 | ||
7b41b173 | 2306 | static inline int security_task_setioprio(struct task_struct *p, int ioprio) |
03e68060 | 2307 | { |
b5376771 | 2308 | return cap_task_setioprio(p, ioprio); |
03e68060 JM |
2309 | } |
2310 | ||
7b41b173 | 2311 | static inline int security_task_getioprio(struct task_struct *p) |
a1836a42 DQ |
2312 | { |
2313 | return 0; | |
2314 | } | |
2315 | ||
7b41b173 EP |
2316 | static inline int security_task_setrlimit(unsigned int resource, |
2317 | struct rlimit *new_rlim) | |
1da177e4 LT |
2318 | { |
2319 | return 0; | |
2320 | } | |
2321 | ||
7b41b173 EP |
2322 | static inline int security_task_setscheduler(struct task_struct *p, |
2323 | int policy, | |
2324 | struct sched_param *lp) | |
1da177e4 | 2325 | { |
b5376771 | 2326 | return cap_task_setscheduler(p, policy, lp); |
1da177e4 LT |
2327 | } |
2328 | ||
7b41b173 | 2329 | static inline int security_task_getscheduler(struct task_struct *p) |
1da177e4 LT |
2330 | { |
2331 | return 0; | |
2332 | } | |
2333 | ||
7b41b173 | 2334 | static inline int security_task_movememory(struct task_struct *p) |
35601547 DQ |
2335 | { |
2336 | return 0; | |
2337 | } | |
2338 | ||
7b41b173 EP |
2339 | static inline int security_task_kill(struct task_struct *p, |
2340 | struct siginfo *info, int sig, | |
2341 | u32 secid) | |
1da177e4 | 2342 | { |
aedb60a6 | 2343 | return 0; |
1da177e4 LT |
2344 | } |
2345 | ||
7b41b173 | 2346 | static inline int security_task_wait(struct task_struct *p) |
1da177e4 LT |
2347 | { |
2348 | return 0; | |
2349 | } | |
2350 | ||
7b41b173 EP |
2351 | static inline int security_task_prctl(int option, unsigned long arg2, |
2352 | unsigned long arg3, | |
2353 | unsigned long arg4, | |
d84f4f99 | 2354 | unsigned long arg5) |
1da177e4 | 2355 | { |
d84f4f99 | 2356 | return cap_task_prctl(option, arg2, arg3, arg3, arg5); |
1da177e4 LT |
2357 | } |
2358 | ||
2359 | static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
2360 | { } | |
2361 | ||
7b41b173 EP |
2362 | static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, |
2363 | short flag) | |
1da177e4 LT |
2364 | { |
2365 | return 0; | |
2366 | } | |
2367 | ||
8a076191 AD |
2368 | static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
2369 | { | |
2370 | *secid = 0; | |
2371 | } | |
2372 | ||
7b41b173 | 2373 | static inline int security_msg_msg_alloc(struct msg_msg *msg) |
1da177e4 LT |
2374 | { |
2375 | return 0; | |
2376 | } | |
2377 | ||
7b41b173 | 2378 | static inline void security_msg_msg_free(struct msg_msg *msg) |
1da177e4 LT |
2379 | { } |
2380 | ||
7b41b173 | 2381 | static inline int security_msg_queue_alloc(struct msg_queue *msq) |
1da177e4 LT |
2382 | { |
2383 | return 0; | |
2384 | } | |
2385 | ||
7b41b173 | 2386 | static inline void security_msg_queue_free(struct msg_queue *msq) |
1da177e4 LT |
2387 | { } |
2388 | ||
7b41b173 EP |
2389 | static inline int security_msg_queue_associate(struct msg_queue *msq, |
2390 | int msqflg) | |
1da177e4 LT |
2391 | { |
2392 | return 0; | |
2393 | } | |
2394 | ||
7b41b173 | 2395 | static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) |
1da177e4 LT |
2396 | { |
2397 | return 0; | |
2398 | } | |
2399 | ||
7b41b173 EP |
2400 | static inline int security_msg_queue_msgsnd(struct msg_queue *msq, |
2401 | struct msg_msg *msg, int msqflg) | |
1da177e4 LT |
2402 | { |
2403 | return 0; | |
2404 | } | |
2405 | ||
7b41b173 EP |
2406 | static inline int security_msg_queue_msgrcv(struct msg_queue *msq, |
2407 | struct msg_msg *msg, | |
2408 | struct task_struct *target, | |
2409 | long type, int mode) | |
1da177e4 LT |
2410 | { |
2411 | return 0; | |
2412 | } | |
2413 | ||
7b41b173 | 2414 | static inline int security_shm_alloc(struct shmid_kernel *shp) |
1da177e4 LT |
2415 | { |
2416 | return 0; | |
2417 | } | |
2418 | ||
7b41b173 | 2419 | static inline void security_shm_free(struct shmid_kernel *shp) |
1da177e4 LT |
2420 | { } |
2421 | ||
7b41b173 EP |
2422 | static inline int security_shm_associate(struct shmid_kernel *shp, |
2423 | int shmflg) | |
1da177e4 LT |
2424 | { |
2425 | return 0; | |
2426 | } | |
2427 | ||
7b41b173 | 2428 | static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd) |
1da177e4 LT |
2429 | { |
2430 | return 0; | |
2431 | } | |
2432 | ||
7b41b173 EP |
2433 | static inline int security_shm_shmat(struct shmid_kernel *shp, |
2434 | char __user *shmaddr, int shmflg) | |
1da177e4 LT |
2435 | { |
2436 | return 0; | |
2437 | } | |
2438 | ||
7b41b173 | 2439 | static inline int security_sem_alloc(struct sem_array *sma) |
1da177e4 LT |
2440 | { |
2441 | return 0; | |
2442 | } | |
2443 | ||
7b41b173 | 2444 | static inline void security_sem_free(struct sem_array *sma) |
1da177e4 LT |
2445 | { } |
2446 | ||
7b41b173 | 2447 | static inline int security_sem_associate(struct sem_array *sma, int semflg) |
1da177e4 LT |
2448 | { |
2449 | return 0; | |
2450 | } | |
2451 | ||
7b41b173 | 2452 | static inline int security_sem_semctl(struct sem_array *sma, int cmd) |
1da177e4 LT |
2453 | { |
2454 | return 0; | |
2455 | } | |
2456 | ||
7b41b173 EP |
2457 | static inline int security_sem_semop(struct sem_array *sma, |
2458 | struct sembuf *sops, unsigned nsops, | |
2459 | int alter) | |
1da177e4 LT |
2460 | { |
2461 | return 0; | |
2462 | } | |
2463 | ||
7b41b173 | 2464 | static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode) |
1da177e4 LT |
2465 | { } |
2466 | ||
04ff9708 | 2467 | static inline int security_getprocattr(struct task_struct *p, char *name, char **value) |
1da177e4 LT |
2468 | { |
2469 | return -EINVAL; | |
2470 | } | |
2471 | ||
2472 | static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) | |
2473 | { | |
2474 | return -EINVAL; | |
2475 | } | |
2476 | ||
7b41b173 | 2477 | static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) |
1da177e4 | 2478 | { |
7b41b173 | 2479 | return cap_netlink_send(sk, skb); |
1da177e4 LT |
2480 | } |
2481 | ||
7b41b173 | 2482 | static inline int security_netlink_recv(struct sk_buff *skb, int cap) |
1da177e4 | 2483 | { |
7b41b173 | 2484 | return cap_netlink_recv(skb, cap); |
1da177e4 LT |
2485 | } |
2486 | ||
dc49c1f9 CZ |
2487 | static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
2488 | { | |
2489 | return -EOPNOTSUPP; | |
2490 | } | |
2491 | ||
7bf570dc | 2492 | static inline int security_secctx_to_secid(const char *secdata, |
63cb3449 DH |
2493 | u32 seclen, |
2494 | u32 *secid) | |
2495 | { | |
2496 | return -EOPNOTSUPP; | |
2497 | } | |
2498 | ||
dc49c1f9 CZ |
2499 | static inline void security_release_secctx(char *secdata, u32 seclen) |
2500 | { | |
dc49c1f9 | 2501 | } |
1ee65e37 DQ |
2502 | |
2503 | static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) | |
2504 | { | |
2505 | return -EOPNOTSUPP; | |
2506 | } | |
2507 | static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
2508 | { | |
2509 | return -EOPNOTSUPP; | |
2510 | } | |
2511 | static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
2512 | { | |
2513 | return -EOPNOTSUPP; | |
2514 | } | |
1da177e4 LT |
2515 | #endif /* CONFIG_SECURITY */ |
2516 | ||
2517 | #ifdef CONFIG_SECURITY_NETWORK | |
4237c75c | 2518 | |
20510f2f JM |
2519 | int security_unix_stream_connect(struct socket *sock, struct socket *other, |
2520 | struct sock *newsk); | |
2521 | int security_unix_may_send(struct socket *sock, struct socket *other); | |
2522 | int security_socket_create(int family, int type, int protocol, int kern); | |
2523 | int security_socket_post_create(struct socket *sock, int family, | |
2524 | int type, int protocol, int kern); | |
2525 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); | |
2526 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); | |
2527 | int security_socket_listen(struct socket *sock, int backlog); | |
2528 | int security_socket_accept(struct socket *sock, struct socket *newsock); | |
20510f2f JM |
2529 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); |
2530 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
2531 | int size, int flags); | |
2532 | int security_socket_getsockname(struct socket *sock); | |
2533 | int security_socket_getpeername(struct socket *sock); | |
2534 | int security_socket_getsockopt(struct socket *sock, int level, int optname); | |
2535 | int security_socket_setsockopt(struct socket *sock, int level, int optname); | |
2536 | int security_socket_shutdown(struct socket *sock, int how); | |
2537 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); | |
2538 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
2539 | int __user *optlen, unsigned len); | |
2540 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); | |
2541 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority); | |
2542 | void security_sk_free(struct sock *sk); | |
2543 | void security_sk_clone(const struct sock *sk, struct sock *newsk); | |
2544 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl); | |
2545 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); | |
2546 | void security_sock_graft(struct sock*sk, struct socket *parent); | |
2547 | int security_inet_conn_request(struct sock *sk, | |
2548 | struct sk_buff *skb, struct request_sock *req); | |
2549 | void security_inet_csk_clone(struct sock *newsk, | |
2550 | const struct request_sock *req); | |
2551 | void security_inet_conn_established(struct sock *sk, | |
2552 | struct sk_buff *skb); | |
2b980dbd PM |
2553 | int security_tun_dev_create(void); |
2554 | void security_tun_dev_post_create(struct sock *sk); | |
2555 | int security_tun_dev_attach(struct sock *sk); | |
6b877699 | 2556 | |
1da177e4 | 2557 | #else /* CONFIG_SECURITY_NETWORK */ |
7b41b173 EP |
2558 | static inline int security_unix_stream_connect(struct socket *sock, |
2559 | struct socket *other, | |
2560 | struct sock *newsk) | |
1da177e4 LT |
2561 | { |
2562 | return 0; | |
2563 | } | |
2564 | ||
7b41b173 EP |
2565 | static inline int security_unix_may_send(struct socket *sock, |
2566 | struct socket *other) | |
1da177e4 LT |
2567 | { |
2568 | return 0; | |
2569 | } | |
2570 | ||
7b41b173 EP |
2571 | static inline int security_socket_create(int family, int type, |
2572 | int protocol, int kern) | |
1da177e4 LT |
2573 | { |
2574 | return 0; | |
2575 | } | |
2576 | ||
7b41b173 | 2577 | static inline int security_socket_post_create(struct socket *sock, |
7420ed23 VY |
2578 | int family, |
2579 | int type, | |
2580 | int protocol, int kern) | |
1da177e4 | 2581 | { |
7420ed23 | 2582 | return 0; |
1da177e4 LT |
2583 | } |
2584 | ||
7b41b173 EP |
2585 | static inline int security_socket_bind(struct socket *sock, |
2586 | struct sockaddr *address, | |
1da177e4 LT |
2587 | int addrlen) |
2588 | { | |
2589 | return 0; | |
2590 | } | |
2591 | ||
7b41b173 EP |
2592 | static inline int security_socket_connect(struct socket *sock, |
2593 | struct sockaddr *address, | |
1da177e4 LT |
2594 | int addrlen) |
2595 | { | |
2596 | return 0; | |
2597 | } | |
2598 | ||
7b41b173 | 2599 | static inline int security_socket_listen(struct socket *sock, int backlog) |
1da177e4 LT |
2600 | { |
2601 | return 0; | |
2602 | } | |
2603 | ||
7b41b173 EP |
2604 | static inline int security_socket_accept(struct socket *sock, |
2605 | struct socket *newsock) | |
1da177e4 LT |
2606 | { |
2607 | return 0; | |
2608 | } | |
2609 | ||
7b41b173 EP |
2610 | static inline int security_socket_sendmsg(struct socket *sock, |
2611 | struct msghdr *msg, int size) | |
1da177e4 LT |
2612 | { |
2613 | return 0; | |
2614 | } | |
2615 | ||
7b41b173 EP |
2616 | static inline int security_socket_recvmsg(struct socket *sock, |
2617 | struct msghdr *msg, int size, | |
1da177e4 LT |
2618 | int flags) |
2619 | { | |
2620 | return 0; | |
2621 | } | |
2622 | ||
7b41b173 | 2623 | static inline int security_socket_getsockname(struct socket *sock) |
1da177e4 LT |
2624 | { |
2625 | return 0; | |
2626 | } | |
2627 | ||
7b41b173 | 2628 | static inline int security_socket_getpeername(struct socket *sock) |
1da177e4 LT |
2629 | { |
2630 | return 0; | |
2631 | } | |
2632 | ||
7b41b173 | 2633 | static inline int security_socket_getsockopt(struct socket *sock, |
1da177e4 LT |
2634 | int level, int optname) |
2635 | { | |
2636 | return 0; | |
2637 | } | |
2638 | ||
7b41b173 | 2639 | static inline int security_socket_setsockopt(struct socket *sock, |
1da177e4 LT |
2640 | int level, int optname) |
2641 | { | |
2642 | return 0; | |
2643 | } | |
2644 | ||
7b41b173 | 2645 | static inline int security_socket_shutdown(struct socket *sock, int how) |
1da177e4 LT |
2646 | { |
2647 | return 0; | |
2648 | } | |
7b41b173 EP |
2649 | static inline int security_sock_rcv_skb(struct sock *sk, |
2650 | struct sk_buff *skb) | |
1da177e4 LT |
2651 | { |
2652 | return 0; | |
2653 | } | |
2654 | ||
2c7946a7 CZ |
2655 | static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, |
2656 | int __user *optlen, unsigned len) | |
2657 | { | |
2658 | return -ENOPROTOOPT; | |
2659 | } | |
2660 | ||
dc49c1f9 | 2661 | static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) |
1da177e4 LT |
2662 | { |
2663 | return -ENOPROTOOPT; | |
2664 | } | |
2665 | ||
dd0fc66f | 2666 | static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) |
1da177e4 LT |
2667 | { |
2668 | return 0; | |
2669 | } | |
2670 | ||
2671 | static inline void security_sk_free(struct sock *sk) | |
892c141e VY |
2672 | { |
2673 | } | |
2674 | ||
2675 | static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1da177e4 LT |
2676 | { |
2677 | } | |
df71837d | 2678 | |
beb8d13b | 2679 | static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl) |
df71837d | 2680 | { |
df71837d | 2681 | } |
4237c75c VY |
2682 | |
2683 | static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
2684 | { | |
2685 | } | |
2686 | ||
7b41b173 | 2687 | static inline void security_sock_graft(struct sock *sk, struct socket *parent) |
4237c75c VY |
2688 | { |
2689 | } | |
2690 | ||
2691 | static inline int security_inet_conn_request(struct sock *sk, | |
2692 | struct sk_buff *skb, struct request_sock *req) | |
2693 | { | |
2694 | return 0; | |
2695 | } | |
2696 | ||
2697 | static inline void security_inet_csk_clone(struct sock *newsk, | |
2698 | const struct request_sock *req) | |
2699 | { | |
2700 | } | |
6b877699 VY |
2701 | |
2702 | static inline void security_inet_conn_established(struct sock *sk, | |
2703 | struct sk_buff *skb) | |
2704 | { | |
2705 | } | |
2b980dbd PM |
2706 | |
2707 | static inline int security_tun_dev_create(void) | |
2708 | { | |
2709 | return 0; | |
2710 | } | |
2711 | ||
2712 | static inline void security_tun_dev_post_create(struct sock *sk) | |
2713 | { | |
2714 | } | |
2715 | ||
2716 | static inline int security_tun_dev_attach(struct sock *sk) | |
2717 | { | |
2718 | return 0; | |
2719 | } | |
1da177e4 LT |
2720 | #endif /* CONFIG_SECURITY_NETWORK */ |
2721 | ||
df71837d | 2722 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
beb8d13b | 2723 | |
03e1ad7b PM |
2724 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx); |
2725 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); | |
2726 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); | |
2727 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); | |
20510f2f JM |
2728 | int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); |
2729 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2730 | struct xfrm_sec_ctx *polsec, u32 secid); | |
2731 | int security_xfrm_state_delete(struct xfrm_state *x); | |
2732 | void security_xfrm_state_free(struct xfrm_state *x); | |
03e1ad7b | 2733 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
20510f2f JM |
2734 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, |
2735 | struct xfrm_policy *xp, struct flowi *fl); | |
2736 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); | |
2737 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl); | |
beb8d13b | 2738 | |
df71837d | 2739 | #else /* CONFIG_SECURITY_NETWORK_XFRM */ |
20510f2f | 2740 | |
03e1ad7b | 2741 | static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) |
df71837d TJ |
2742 | { |
2743 | return 0; | |
2744 | } | |
2745 | ||
03e1ad7b | 2746 | static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) |
df71837d TJ |
2747 | { |
2748 | return 0; | |
2749 | } | |
2750 | ||
03e1ad7b | 2751 | static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
df71837d TJ |
2752 | { |
2753 | } | |
2754 | ||
03e1ad7b | 2755 | static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
c8c05a8e CZ |
2756 | { |
2757 | return 0; | |
2758 | } | |
2759 | ||
e0d1caa7 VY |
2760 | static inline int security_xfrm_state_alloc(struct xfrm_state *x, |
2761 | struct xfrm_user_sec_ctx *sec_ctx) | |
2762 | { | |
2763 | return 0; | |
2764 | } | |
2765 | ||
2766 | static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2767 | struct xfrm_sec_ctx *polsec, u32 secid) | |
df71837d TJ |
2768 | { |
2769 | return 0; | |
2770 | } | |
2771 | ||
2772 | static inline void security_xfrm_state_free(struct xfrm_state *x) | |
2773 | { | |
2774 | } | |
2775 | ||
6f68dc37 | 2776 | static inline int security_xfrm_state_delete(struct xfrm_state *x) |
c8c05a8e CZ |
2777 | { |
2778 | return 0; | |
2779 | } | |
2780 | ||
03e1ad7b | 2781 | static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
df71837d TJ |
2782 | { |
2783 | return 0; | |
2784 | } | |
e0d1caa7 VY |
2785 | |
2786 | static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
2787 | struct xfrm_policy *xp, struct flowi *fl) | |
2788 | { | |
2789 | return 1; | |
2790 | } | |
2791 | ||
beb8d13b | 2792 | static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) |
e0d1caa7 VY |
2793 | { |
2794 | return 0; | |
2795 | } | |
2796 | ||
beb8d13b VY |
2797 | static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) |
2798 | { | |
2799 | } | |
2800 | ||
df71837d TJ |
2801 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
2802 | ||
be6d3e56 KT |
2803 | #ifdef CONFIG_SECURITY_PATH |
2804 | int security_path_unlink(struct path *dir, struct dentry *dentry); | |
2805 | int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode); | |
2806 | int security_path_rmdir(struct path *dir, struct dentry *dentry); | |
2807 | int security_path_mknod(struct path *dir, struct dentry *dentry, int mode, | |
2808 | unsigned int dev); | |
2809 | int security_path_truncate(struct path *path, loff_t length, | |
2810 | unsigned int time_attrs); | |
2811 | int security_path_symlink(struct path *dir, struct dentry *dentry, | |
2812 | const char *old_name); | |
2813 | int security_path_link(struct dentry *old_dentry, struct path *new_dir, | |
2814 | struct dentry *new_dentry); | |
2815 | int security_path_rename(struct path *old_dir, struct dentry *old_dentry, | |
2816 | struct path *new_dir, struct dentry *new_dentry); | |
89eda068 TH |
2817 | int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt, |
2818 | mode_t mode); | |
2819 | int security_path_chown(struct path *path, uid_t uid, gid_t gid); | |
8b8efb44 | 2820 | int security_path_chroot(struct path *path); |
be6d3e56 KT |
2821 | #else /* CONFIG_SECURITY_PATH */ |
2822 | static inline int security_path_unlink(struct path *dir, struct dentry *dentry) | |
2823 | { | |
2824 | return 0; | |
2825 | } | |
2826 | ||
2827 | static inline int security_path_mkdir(struct path *dir, struct dentry *dentry, | |
2828 | int mode) | |
2829 | { | |
2830 | return 0; | |
2831 | } | |
2832 | ||
2833 | static inline int security_path_rmdir(struct path *dir, struct dentry *dentry) | |
2834 | { | |
2835 | return 0; | |
2836 | } | |
2837 | ||
2838 | static inline int security_path_mknod(struct path *dir, struct dentry *dentry, | |
2839 | int mode, unsigned int dev) | |
2840 | { | |
2841 | return 0; | |
2842 | } | |
2843 | ||
2844 | static inline int security_path_truncate(struct path *path, loff_t length, | |
2845 | unsigned int time_attrs) | |
2846 | { | |
2847 | return 0; | |
2848 | } | |
2849 | ||
2850 | static inline int security_path_symlink(struct path *dir, struct dentry *dentry, | |
2851 | const char *old_name) | |
2852 | { | |
2853 | return 0; | |
2854 | } | |
2855 | ||
2856 | static inline int security_path_link(struct dentry *old_dentry, | |
2857 | struct path *new_dir, | |
2858 | struct dentry *new_dentry) | |
2859 | { | |
2860 | return 0; | |
2861 | } | |
2862 | ||
2863 | static inline int security_path_rename(struct path *old_dir, | |
2864 | struct dentry *old_dentry, | |
2865 | struct path *new_dir, | |
2866 | struct dentry *new_dentry) | |
2867 | { | |
2868 | return 0; | |
2869 | } | |
89eda068 TH |
2870 | |
2871 | static inline int security_path_chmod(struct dentry *dentry, | |
2872 | struct vfsmount *mnt, | |
2873 | mode_t mode) | |
2874 | { | |
2875 | return 0; | |
2876 | } | |
2877 | ||
2878 | static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid) | |
2879 | { | |
2880 | return 0; | |
2881 | } | |
8b8efb44 TH |
2882 | |
2883 | static inline int security_path_chroot(struct path *path) | |
2884 | { | |
2885 | return 0; | |
2886 | } | |
be6d3e56 KT |
2887 | #endif /* CONFIG_SECURITY_PATH */ |
2888 | ||
29db9190 DH |
2889 | #ifdef CONFIG_KEYS |
2890 | #ifdef CONFIG_SECURITY | |
29db9190 | 2891 | |
d84f4f99 | 2892 | int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); |
20510f2f JM |
2893 | void security_key_free(struct key *key); |
2894 | int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 2895 | const struct cred *cred, key_perm_t perm); |
70a5bb72 | 2896 | int security_key_getsecurity(struct key *key, char **_buffer); |
29db9190 DH |
2897 | |
2898 | #else | |
2899 | ||
d720024e | 2900 | static inline int security_key_alloc(struct key *key, |
d84f4f99 | 2901 | const struct cred *cred, |
7e047ef5 | 2902 | unsigned long flags) |
29db9190 DH |
2903 | { |
2904 | return 0; | |
2905 | } | |
2906 | ||
2907 | static inline void security_key_free(struct key *key) | |
2908 | { | |
2909 | } | |
2910 | ||
2911 | static inline int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 2912 | const struct cred *cred, |
29db9190 DH |
2913 | key_perm_t perm) |
2914 | { | |
2915 | return 0; | |
2916 | } | |
2917 | ||
70a5bb72 DH |
2918 | static inline int security_key_getsecurity(struct key *key, char **_buffer) |
2919 | { | |
2920 | *_buffer = NULL; | |
2921 | return 0; | |
be1d6a5f | 2922 | } |
ee18d64c | 2923 | |
29db9190 DH |
2924 | #endif |
2925 | #endif /* CONFIG_KEYS */ | |
2926 | ||
03d37d25 AD |
2927 | #ifdef CONFIG_AUDIT |
2928 | #ifdef CONFIG_SECURITY | |
2929 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule); | |
2930 | int security_audit_rule_known(struct audit_krule *krule); | |
2931 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
2932 | struct audit_context *actx); | |
2933 | void security_audit_rule_free(void *lsmrule); | |
2934 | ||
2935 | #else | |
2936 | ||
2937 | static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, | |
2938 | void **lsmrule) | |
2939 | { | |
2940 | return 0; | |
2941 | } | |
2942 | ||
2943 | static inline int security_audit_rule_known(struct audit_krule *krule) | |
2944 | { | |
2945 | return 0; | |
2946 | } | |
2947 | ||
2948 | static inline int security_audit_rule_match(u32 secid, u32 field, u32 op, | |
2949 | void *lsmrule, struct audit_context *actx) | |
2950 | { | |
2951 | return 0; | |
2952 | } | |
2953 | ||
2954 | static inline void security_audit_rule_free(void *lsmrule) | |
2955 | { } | |
2956 | ||
2957 | #endif /* CONFIG_SECURITY */ | |
2958 | #endif /* CONFIG_AUDIT */ | |
2959 | ||
da31894e EP |
2960 | #ifdef CONFIG_SECURITYFS |
2961 | ||
2962 | extern struct dentry *securityfs_create_file(const char *name, mode_t mode, | |
2963 | struct dentry *parent, void *data, | |
2964 | const struct file_operations *fops); | |
2965 | extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); | |
2966 | extern void securityfs_remove(struct dentry *dentry); | |
2967 | ||
2968 | #else /* CONFIG_SECURITYFS */ | |
2969 | ||
2970 | static inline struct dentry *securityfs_create_dir(const char *name, | |
2971 | struct dentry *parent) | |
2972 | { | |
2973 | return ERR_PTR(-ENODEV); | |
2974 | } | |
2975 | ||
2976 | static inline struct dentry *securityfs_create_file(const char *name, | |
2977 | mode_t mode, | |
2978 | struct dentry *parent, | |
2979 | void *data, | |
2980 | const struct file_operations *fops) | |
2981 | { | |
2982 | return ERR_PTR(-ENODEV); | |
2983 | } | |
2984 | ||
2985 | static inline void securityfs_remove(struct dentry *dentry) | |
2986 | {} | |
2987 | ||
2988 | #endif | |
2989 | ||
3d544f41 PE |
2990 | #ifdef CONFIG_SECURITY |
2991 | ||
2992 | static inline char *alloc_secdata(void) | |
2993 | { | |
2994 | return (char *)get_zeroed_page(GFP_KERNEL); | |
2995 | } | |
2996 | ||
2997 | static inline void free_secdata(void *secdata) | |
2998 | { | |
2999 | free_page((unsigned long)secdata); | |
3000 | } | |
3001 | ||
3002 | #else | |
3003 | ||
3004 | static inline char *alloc_secdata(void) | |
3005 | { | |
3006 | return (char *)1; | |
3007 | } | |
3008 | ||
3009 | static inline void free_secdata(void *secdata) | |
3010 | { } | |
3011 | #endif /* CONFIG_SECURITY */ | |
3012 | ||
1da177e4 LT |
3013 | #endif /* ! __LINUX_SECURITY_H */ |
3014 |