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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> | |
c4ec54b4 | 26 | #include <linux/fsnotify.h> |
1da177e4 | 27 | #include <linux/binfmts.h> |
2a7dba39 | 28 | #include <linux/dcache.h> |
1da177e4 LT |
29 | #include <linux/signal.h> |
30 | #include <linux/resource.h> | |
31 | #include <linux/sem.h> | |
32 | #include <linux/shm.h> | |
a2551df7 | 33 | #include <linux/mm.h> /* PAGE_ALIGN */ |
1da177e4 LT |
34 | #include <linux/msg.h> |
35 | #include <linux/sched.h> | |
29db9190 | 36 | #include <linux/key.h> |
e0d1caa7 | 37 | #include <linux/xfrm.h> |
5a0e3ad6 | 38 | #include <linux/slab.h> |
9d8f13ba | 39 | #include <linux/xattr.h> |
beb8d13b | 40 | #include <net/flow.h> |
1da177e4 | 41 | |
076c54c5 AD |
42 | /* Maximum number of letters for an LSM name string */ |
43 | #define SECURITY_NAME_MAX 10 | |
44 | ||
06112163 EP |
45 | /* If capable should audit the security request */ |
46 | #define SECURITY_CAP_NOAUDIT 0 | |
47 | #define SECURITY_CAP_AUDIT 1 | |
48 | ||
1da177e4 | 49 | struct ctl_table; |
03d37d25 | 50 | struct audit_krule; |
3486740a | 51 | struct user_namespace; |
1da177e4 LT |
52 | |
53 | /* | |
54 | * These functions are in security/capability.c and are used | |
55 | * as the default capabilities functions | |
56 | */ | |
3699c53c | 57 | extern int cap_capable(struct task_struct *tsk, const struct cred *cred, |
3486740a | 58 | struct user_namespace *ns, int cap, int audit); |
1e6d7679 | 59 | extern int cap_settime(const struct timespec *ts, const struct timezone *tz); |
9e48858f | 60 | extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 61 | extern int cap_ptrace_traceme(struct task_struct *parent); |
7b41b173 | 62 | extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); |
d84f4f99 DH |
63 | extern int cap_capset(struct cred *new, const struct cred *old, |
64 | const kernel_cap_t *effective, | |
65 | const kernel_cap_t *inheritable, | |
66 | const kernel_cap_t *permitted); | |
a6f76f23 | 67 | extern int cap_bprm_set_creds(struct linux_binprm *bprm); |
1da177e4 | 68 | extern int cap_bprm_secureexec(struct linux_binprm *bprm); |
8f0cfa52 DH |
69 | extern int cap_inode_setxattr(struct dentry *dentry, const char *name, |
70 | const void *value, size_t size, int flags); | |
71 | extern int cap_inode_removexattr(struct dentry *dentry, const char *name); | |
b5376771 SH |
72 | extern int cap_inode_need_killpriv(struct dentry *dentry); |
73 | extern int cap_inode_killpriv(struct dentry *dentry); | |
7c73875e EP |
74 | extern int cap_file_mmap(struct file *file, unsigned long reqprot, |
75 | unsigned long prot, unsigned long flags, | |
76 | unsigned long addr, unsigned long addr_only); | |
d84f4f99 | 77 | extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); |
3898b1b4 | 78 | extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 79 | unsigned long arg4, unsigned long arg5); |
b0ae1981 | 80 | extern int cap_task_setscheduler(struct task_struct *p); |
7b41b173 EP |
81 | extern int cap_task_setioprio(struct task_struct *p, int ioprio); |
82 | extern int cap_task_setnice(struct task_struct *p, int nice); | |
20510f2f | 83 | extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); |
1da177e4 LT |
84 | |
85 | struct msghdr; | |
86 | struct sk_buff; | |
87 | struct sock; | |
88 | struct sockaddr; | |
89 | struct socket; | |
df71837d TJ |
90 | struct flowi; |
91 | struct dst_entry; | |
92 | struct xfrm_selector; | |
93 | struct xfrm_policy; | |
94 | struct xfrm_state; | |
95 | struct xfrm_user_sec_ctx; | |
2069f457 | 96 | struct seq_file; |
1da177e4 LT |
97 | |
98 | extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb); | |
c7bdb545 | 99 | extern int cap_netlink_recv(struct sk_buff *skb, int cap); |
1da177e4 | 100 | |
189b3b1c | 101 | void reset_security_ops(void); |
102 | ||
6e141546 | 103 | #ifdef CONFIG_MMU |
ed032189 | 104 | extern unsigned long mmap_min_addr; |
a2551df7 | 105 | extern unsigned long dac_mmap_min_addr; |
6e141546 DH |
106 | #else |
107 | #define dac_mmap_min_addr 0UL | |
108 | #endif | |
109 | ||
1da177e4 LT |
110 | /* |
111 | * Values used in the task_security_ops calls | |
112 | */ | |
113 | /* setuid or setgid, id0 == uid or gid */ | |
114 | #define LSM_SETID_ID 1 | |
115 | ||
116 | /* setreuid or setregid, id0 == real, id1 == eff */ | |
117 | #define LSM_SETID_RE 2 | |
118 | ||
119 | /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ | |
120 | #define LSM_SETID_RES 4 | |
121 | ||
122 | /* setfsuid or setfsgid, id0 == fsuid or fsgid */ | |
123 | #define LSM_SETID_FS 8 | |
124 | ||
125 | /* forward declares to avoid warnings */ | |
1da177e4 | 126 | struct sched_param; |
4237c75c | 127 | struct request_sock; |
1da177e4 | 128 | |
a6f76f23 | 129 | /* bprm->unsafe reasons */ |
1da177e4 LT |
130 | #define LSM_UNSAFE_SHARE 1 |
131 | #define LSM_UNSAFE_PTRACE 2 | |
132 | #define LSM_UNSAFE_PTRACE_CAP 4 | |
133 | ||
6e141546 | 134 | #ifdef CONFIG_MMU |
47d439e9 EP |
135 | /* |
136 | * If a hint addr is less than mmap_min_addr change hint to be as | |
137 | * low as possible but still greater than mmap_min_addr | |
138 | */ | |
139 | static inline unsigned long round_hint_to_min(unsigned long hint) | |
140 | { | |
141 | hint &= PAGE_MASK; | |
142 | if (((void *)hint != NULL) && | |
143 | (hint < mmap_min_addr)) | |
144 | return PAGE_ALIGN(mmap_min_addr); | |
145 | return hint; | |
146 | } | |
8d65af78 | 147 | extern int mmap_min_addr_handler(struct ctl_table *table, int write, |
47d439e9 | 148 | void __user *buffer, size_t *lenp, loff_t *ppos); |
6e141546 | 149 | #endif |
47d439e9 | 150 | |
9d8f13ba MZ |
151 | /* security_inode_init_security callback function to write xattrs */ |
152 | typedef int (*initxattrs) (struct inode *inode, | |
153 | const struct xattr *xattr_array, void *fs_data); | |
154 | ||
1da177e4 LT |
155 | #ifdef CONFIG_SECURITY |
156 | ||
e0007529 EP |
157 | struct security_mnt_opts { |
158 | char **mnt_opts; | |
159 | int *mnt_opts_flags; | |
160 | int num_mnt_opts; | |
161 | }; | |
162 | ||
163 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
164 | { | |
165 | opts->mnt_opts = NULL; | |
166 | opts->mnt_opts_flags = NULL; | |
167 | opts->num_mnt_opts = 0; | |
168 | } | |
169 | ||
170 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
171 | { | |
172 | int i; | |
173 | if (opts->mnt_opts) | |
7b41b173 | 174 | for (i = 0; i < opts->num_mnt_opts; i++) |
e0007529 EP |
175 | kfree(opts->mnt_opts[i]); |
176 | kfree(opts->mnt_opts); | |
177 | opts->mnt_opts = NULL; | |
178 | kfree(opts->mnt_opts_flags); | |
179 | opts->mnt_opts_flags = NULL; | |
180 | opts->num_mnt_opts = 0; | |
181 | } | |
182 | ||
1da177e4 LT |
183 | /** |
184 | * struct security_operations - main security structure | |
185 | * | |
076c54c5 AD |
186 | * Security module identifier. |
187 | * | |
188 | * @name: | |
189 | * A string that acts as a unique identifeir for the LSM with max number | |
190 | * of characters = SECURITY_NAME_MAX. | |
191 | * | |
1da177e4 LT |
192 | * Security hooks for program execution operations. |
193 | * | |
a6f76f23 | 194 | * @bprm_set_creds: |
1da177e4 LT |
195 | * Save security information in the bprm->security field, typically based |
196 | * on information about the bprm->file, for later use by the apply_creds | |
197 | * hook. This hook may also optionally check permissions (e.g. for | |
198 | * transitions between security domains). | |
199 | * This hook may be called multiple times during a single execve, e.g. for | |
200 | * interpreters. The hook can tell whether it has already been called by | |
201 | * checking to see if @bprm->security is non-NULL. If so, then the hook | |
202 | * may decide either to retain the security information saved earlier or | |
203 | * to replace it. | |
204 | * @bprm contains the linux_binprm structure. | |
205 | * Return 0 if the hook is successful and permission is granted. | |
206 | * @bprm_check_security: | |
a6f76f23 DH |
207 | * This hook mediates the point when a search for a binary handler will |
208 | * begin. It allows a check the @bprm->security value which is set in the | |
209 | * preceding set_creds call. The primary difference from set_creds is | |
210 | * that the argv list and envp list are reliably available in @bprm. This | |
211 | * hook may be called multiple times during a single execve; and in each | |
212 | * pass set_creds is called first. | |
7b41b173 | 213 | * @bprm contains the linux_binprm structure. |
1da177e4 | 214 | * Return 0 if the hook is successful and permission is granted. |
a6f76f23 DH |
215 | * @bprm_committing_creds: |
216 | * Prepare to install the new security attributes of a process being | |
217 | * transformed by an execve operation, based on the old credentials | |
218 | * pointed to by @current->cred and the information set in @bprm->cred by | |
219 | * the bprm_set_creds hook. @bprm points to the linux_binprm structure. | |
220 | * This hook is a good place to perform state changes on the process such | |
221 | * as closing open file descriptors to which access will no longer be | |
222 | * granted when the attributes are changed. This is called immediately | |
223 | * before commit_creds(). | |
224 | * @bprm_committed_creds: | |
225 | * Tidy up after the installation of the new security attributes of a | |
226 | * process being transformed by an execve operation. The new credentials | |
227 | * have, by this point, been set to @current->cred. @bprm points to the | |
228 | * linux_binprm structure. This hook is a good place to perform state | |
229 | * changes on the process such as clearing out non-inheritable signal | |
230 | * state. This is called immediately after commit_creds(). | |
1da177e4 | 231 | * @bprm_secureexec: |
7b41b173 EP |
232 | * Return a boolean value (0 or 1) indicating whether a "secure exec" |
233 | * is required. The flag is passed in the auxiliary table | |
234 | * on the initial stack to the ELF interpreter to indicate whether libc | |
235 | * should enable secure mode. | |
236 | * @bprm contains the linux_binprm structure. | |
1da177e4 LT |
237 | * |
238 | * Security hooks for filesystem operations. | |
239 | * | |
240 | * @sb_alloc_security: | |
241 | * Allocate and attach a security structure to the sb->s_security field. | |
242 | * The s_security field is initialized to NULL when the structure is | |
243 | * allocated. | |
244 | * @sb contains the super_block structure to be modified. | |
245 | * Return 0 if operation was successful. | |
246 | * @sb_free_security: | |
247 | * Deallocate and clear the sb->s_security field. | |
248 | * @sb contains the super_block structure to be modified. | |
249 | * @sb_statfs: | |
726c3342 DH |
250 | * Check permission before obtaining filesystem statistics for the @mnt |
251 | * mountpoint. | |
252 | * @dentry is a handle on the superblock for the filesystem. | |
7b41b173 | 253 | * Return 0 if permission is granted. |
1da177e4 LT |
254 | * @sb_mount: |
255 | * Check permission before an object specified by @dev_name is mounted on | |
256 | * the mount point named by @nd. For an ordinary mount, @dev_name | |
257 | * identifies a device if the file system type requires a device. For a | |
258 | * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a | |
259 | * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the | |
260 | * pathname of the object being mounted. | |
261 | * @dev_name contains the name for object being mounted. | |
b5266eb4 | 262 | * @path contains the path for mount point object. |
1da177e4 LT |
263 | * @type contains the filesystem type. |
264 | * @flags contains the mount flags. | |
265 | * @data contains the filesystem-specific data. | |
266 | * Return 0 if permission is granted. | |
267 | * @sb_copy_data: | |
268 | * Allow mount option data to be copied prior to parsing by the filesystem, | |
269 | * so that the security module can extract security-specific mount | |
270 | * options cleanly (a filesystem may modify the data e.g. with strsep()). | |
271 | * This also allows the original mount data to be stripped of security- | |
272 | * specific options to avoid having to make filesystems aware of them. | |
273 | * @type the type of filesystem being mounted. | |
274 | * @orig the original mount data copied from userspace. | |
275 | * @copy copied data which will be passed to the security module. | |
276 | * Returns 0 if the copy was successful. | |
ff36fe2c EP |
277 | * @sb_remount: |
278 | * Extracts security system specifc mount options and verifys no changes | |
279 | * are being made to those options. | |
280 | * @sb superblock being remounted | |
281 | * @data contains the filesystem-specific data. | |
282 | * Return 0 if permission is granted. | |
1da177e4 LT |
283 | * @sb_umount: |
284 | * Check permission before the @mnt file system is unmounted. | |
285 | * @mnt contains the mounted file system. | |
286 | * @flags contains the unmount flags, e.g. MNT_FORCE. | |
287 | * Return 0 if permission is granted. | |
1da177e4 LT |
288 | * @sb_pivotroot: |
289 | * Check permission before pivoting the root filesystem. | |
b5266eb4 | 290 | * @old_path contains the path for the new location of the current root (put_old). |
7b41b173 | 291 | * @new_path contains the path for the new root (new_root). |
1da177e4 | 292 | * Return 0 if permission is granted. |
c9180a57 EP |
293 | * @sb_set_mnt_opts: |
294 | * Set the security relevant mount options used for a superblock | |
295 | * @sb the superblock to set security mount options for | |
e0007529 | 296 | * @opts binary data structure containing all lsm mount data |
c9180a57 EP |
297 | * @sb_clone_mnt_opts: |
298 | * Copy all security options from a given superblock to another | |
299 | * @oldsb old superblock which contain information to clone | |
300 | * @newsb new superblock which needs filled in | |
e0007529 EP |
301 | * @sb_parse_opts_str: |
302 | * Parse a string of security data filling in the opts structure | |
303 | * @options string containing all mount options known by the LSM | |
304 | * @opts binary data structure usable by the LSM | |
1da177e4 LT |
305 | * |
306 | * Security hooks for inode operations. | |
307 | * | |
308 | * @inode_alloc_security: | |
309 | * Allocate and attach a security structure to @inode->i_security. The | |
310 | * i_security field is initialized to NULL when the inode structure is | |
311 | * allocated. | |
312 | * @inode contains the inode structure. | |
313 | * Return 0 if operation was successful. | |
314 | * @inode_free_security: | |
315 | * @inode contains the inode structure. | |
316 | * Deallocate the inode security structure and set @inode->i_security to | |
7b41b173 | 317 | * NULL. |
5e41ff9e | 318 | * @inode_init_security: |
7b41b173 | 319 | * Obtain the security attribute name suffix and value to set on a newly |
5e41ff9e SS |
320 | * created inode and set up the incore security field for the new inode. |
321 | * This hook is called by the fs code as part of the inode creation | |
322 | * transaction and provides for atomic labeling of the inode, unlike | |
323 | * the post_create/mkdir/... hooks called by the VFS. The hook function | |
324 | * is expected to allocate the name and value via kmalloc, with the caller | |
325 | * being responsible for calling kfree after using them. | |
326 | * If the security module does not use security attributes or does | |
327 | * not wish to put a security attribute on this particular inode, | |
328 | * then it should return -EOPNOTSUPP to skip this processing. | |
329 | * @inode contains the inode structure of the newly created inode. | |
330 | * @dir contains the inode structure of the parent directory. | |
2a7dba39 | 331 | * @qstr contains the last path component of the new object |
5e41ff9e SS |
332 | * @name will be set to the allocated name suffix (e.g. selinux). |
333 | * @value will be set to the allocated attribute value. | |
334 | * @len will be set to the length of the value. | |
335 | * Returns 0 if @name and @value have been successfully set, | |
336 | * -EOPNOTSUPP if no security attribute is needed, or | |
337 | * -ENOMEM on memory allocation failure. | |
1da177e4 LT |
338 | * @inode_create: |
339 | * Check permission to create a regular file. | |
340 | * @dir contains inode structure of the parent of the new file. | |
341 | * @dentry contains the dentry structure for the file to be created. | |
342 | * @mode contains the file mode of the file to be created. | |
343 | * Return 0 if permission is granted. | |
1da177e4 LT |
344 | * @inode_link: |
345 | * Check permission before creating a new hard link to a file. | |
346 | * @old_dentry contains the dentry structure for an existing link to the file. | |
347 | * @dir contains the inode structure of the parent directory of the new link. | |
348 | * @new_dentry contains the dentry structure for the new link. | |
349 | * Return 0 if permission is granted. | |
be6d3e56 KT |
350 | * @path_link: |
351 | * Check permission before creating a new hard link to a file. | |
352 | * @old_dentry contains the dentry structure for an existing link | |
353 | * to the file. | |
354 | * @new_dir contains the path structure of the parent directory of | |
355 | * the new link. | |
356 | * @new_dentry contains the dentry structure for the new link. | |
357 | * Return 0 if permission is granted. | |
1da177e4 | 358 | * @inode_unlink: |
7b41b173 | 359 | * Check the permission to remove a hard link to a file. |
1da177e4 LT |
360 | * @dir contains the inode structure of parent directory of the file. |
361 | * @dentry contains the dentry structure for file to be unlinked. | |
362 | * Return 0 if permission is granted. | |
be6d3e56 KT |
363 | * @path_unlink: |
364 | * Check the permission to remove a hard link to a file. | |
365 | * @dir contains the path structure of parent directory of the file. | |
366 | * @dentry contains the dentry structure for file to be unlinked. | |
367 | * Return 0 if permission is granted. | |
1da177e4 LT |
368 | * @inode_symlink: |
369 | * Check the permission to create a symbolic link to a file. | |
370 | * @dir contains the inode structure of parent directory of the symbolic link. | |
371 | * @dentry contains the dentry structure of the symbolic link. | |
372 | * @old_name contains the pathname of file. | |
373 | * Return 0 if permission is granted. | |
be6d3e56 KT |
374 | * @path_symlink: |
375 | * Check the permission to create a symbolic link to a file. | |
376 | * @dir contains the path structure of parent directory of | |
377 | * the symbolic link. | |
378 | * @dentry contains the dentry structure of the symbolic link. | |
379 | * @old_name contains the pathname of file. | |
380 | * Return 0 if permission is granted. | |
1da177e4 LT |
381 | * @inode_mkdir: |
382 | * Check permissions to create a new directory in the existing directory | |
7b41b173 | 383 | * associated with inode strcture @dir. |
1da177e4 LT |
384 | * @dir containst the inode structure of parent of the directory to be created. |
385 | * @dentry contains the dentry structure of new directory. | |
386 | * @mode contains the mode of new directory. | |
387 | * Return 0 if permission is granted. | |
be6d3e56 KT |
388 | * @path_mkdir: |
389 | * Check permissions to create a new directory in the existing directory | |
390 | * associated with path strcture @path. | |
391 | * @dir containst the path structure of parent of the directory | |
392 | * to be created. | |
393 | * @dentry contains the dentry structure of new directory. | |
394 | * @mode contains the mode of new directory. | |
395 | * Return 0 if permission is granted. | |
1da177e4 LT |
396 | * @inode_rmdir: |
397 | * Check the permission to remove a directory. | |
398 | * @dir contains the inode structure of parent of the directory to be removed. | |
399 | * @dentry contains the dentry structure of directory to be removed. | |
400 | * Return 0 if permission is granted. | |
be6d3e56 KT |
401 | * @path_rmdir: |
402 | * Check the permission to remove a directory. | |
403 | * @dir contains the path structure of parent of the directory to be | |
404 | * removed. | |
405 | * @dentry contains the dentry structure of directory to be removed. | |
406 | * Return 0 if permission is granted. | |
1da177e4 LT |
407 | * @inode_mknod: |
408 | * Check permissions when creating a special file (or a socket or a fifo | |
409 | * file created via the mknod system call). Note that if mknod operation | |
410 | * is being done for a regular file, then the create hook will be called | |
411 | * and not this hook. | |
412 | * @dir contains the inode structure of parent of the new file. | |
413 | * @dentry contains the dentry structure of the new file. | |
414 | * @mode contains the mode of the new file. | |
59c51591 | 415 | * @dev contains the device number. |
1da177e4 | 416 | * Return 0 if permission is granted. |
be6d3e56 KT |
417 | * @path_mknod: |
418 | * Check permissions when creating a file. Note that this hook is called | |
419 | * even if mknod operation is being done for a regular file. | |
420 | * @dir contains the path structure of parent of the new file. | |
421 | * @dentry contains the dentry structure of the new file. | |
422 | * @mode contains the mode of the new file. | |
423 | * @dev contains the undecoded device number. Use new_decode_dev() to get | |
424 | * the decoded device number. | |
425 | * Return 0 if permission is granted. | |
1da177e4 LT |
426 | * @inode_rename: |
427 | * Check for permission to rename a file or directory. | |
428 | * @old_dir contains the inode structure for parent of the old link. | |
429 | * @old_dentry contains the dentry structure of the old link. | |
430 | * @new_dir contains the inode structure for parent of the new link. | |
431 | * @new_dentry contains the dentry structure of the new link. | |
432 | * Return 0 if permission is granted. | |
be6d3e56 KT |
433 | * @path_rename: |
434 | * Check for permission to rename a file or directory. | |
435 | * @old_dir contains the path structure for parent of the old link. | |
436 | * @old_dentry contains the dentry structure of the old link. | |
437 | * @new_dir contains the path structure for parent of the new link. | |
438 | * @new_dentry contains the dentry structure of the new link. | |
439 | * Return 0 if permission is granted. | |
89eda068 TH |
440 | * @path_chmod: |
441 | * Check for permission to change DAC's permission of a file or directory. | |
442 | * @dentry contains the dentry structure. | |
443 | * @mnt contains the vfsmnt structure. | |
444 | * @mode contains DAC's mode. | |
445 | * Return 0 if permission is granted. | |
446 | * @path_chown: | |
447 | * Check for permission to change owner/group of a file or directory. | |
448 | * @path contains the path structure. | |
449 | * @uid contains new owner's ID. | |
450 | * @gid contains new group's ID. | |
451 | * Return 0 if permission is granted. | |
8b8efb44 TH |
452 | * @path_chroot: |
453 | * Check for permission to change root directory. | |
454 | * @path contains the path structure. | |
455 | * Return 0 if permission is granted. | |
1da177e4 LT |
456 | * @inode_readlink: |
457 | * Check the permission to read the symbolic link. | |
458 | * @dentry contains the dentry structure for the file link. | |
459 | * Return 0 if permission is granted. | |
460 | * @inode_follow_link: | |
461 | * Check permission to follow a symbolic link when looking up a pathname. | |
462 | * @dentry contains the dentry structure for the link. | |
463 | * @nd contains the nameidata structure for the parent directory. | |
464 | * Return 0 if permission is granted. | |
465 | * @inode_permission: | |
466 | * Check permission before accessing an inode. This hook is called by the | |
467 | * existing Linux permission function, so a security module can use it to | |
468 | * provide additional checking for existing Linux permission checks. | |
469 | * Notice that this hook is called when a file is opened (as well as many | |
470 | * other operations), whereas the file_security_ops permission hook is | |
471 | * called when the actual read/write operations are performed. | |
472 | * @inode contains the inode structure to check. | |
473 | * @mask contains the permission mask. | |
1da177e4 LT |
474 | * Return 0 if permission is granted. |
475 | * @inode_setattr: | |
476 | * Check permission before setting file attributes. Note that the kernel | |
477 | * call to notify_change is performed from several locations, whenever | |
478 | * file attributes change (such as when a file is truncated, chown/chmod | |
479 | * operations, transferring disk quotas, etc). | |
480 | * @dentry contains the dentry structure for the file. | |
481 | * @attr is the iattr structure containing the new file attributes. | |
482 | * Return 0 if permission is granted. | |
be6d3e56 KT |
483 | * @path_truncate: |
484 | * Check permission before truncating a file. | |
485 | * @path contains the path structure for the file. | |
be6d3e56 | 486 | * Return 0 if permission is granted. |
1da177e4 LT |
487 | * @inode_getattr: |
488 | * Check permission before obtaining file attributes. | |
489 | * @mnt is the vfsmount where the dentry was looked up | |
490 | * @dentry contains the dentry structure for the file. | |
491 | * Return 0 if permission is granted. | |
1da177e4 | 492 | * @inode_setxattr: |
7b41b173 EP |
493 | * Check permission before setting the extended attributes |
494 | * @value identified by @name for @dentry. | |
495 | * Return 0 if permission is granted. | |
1da177e4 | 496 | * @inode_post_setxattr: |
7b41b173 EP |
497 | * Update inode security field after successful setxattr operation. |
498 | * @value identified by @name for @dentry. | |
1da177e4 | 499 | * @inode_getxattr: |
7b41b173 EP |
500 | * Check permission before obtaining the extended attributes |
501 | * identified by @name for @dentry. | |
502 | * Return 0 if permission is granted. | |
1da177e4 | 503 | * @inode_listxattr: |
7b41b173 EP |
504 | * Check permission before obtaining the list of extended attribute |
505 | * names for @dentry. | |
506 | * Return 0 if permission is granted. | |
1da177e4 | 507 | * @inode_removexattr: |
7b41b173 EP |
508 | * Check permission before removing the extended attribute |
509 | * identified by @name for @dentry. | |
510 | * Return 0 if permission is granted. | |
1da177e4 | 511 | * @inode_getsecurity: |
42492594 DQ |
512 | * Retrieve a copy of the extended attribute representation of the |
513 | * security label associated with @name for @inode via @buffer. Note that | |
514 | * @name is the remainder of the attribute name after the security prefix | |
515 | * has been removed. @alloc is used to specify of the call should return a | |
516 | * value via the buffer or just the value length Return size of buffer on | |
517 | * success. | |
1da177e4 LT |
518 | * @inode_setsecurity: |
519 | * Set the security label associated with @name for @inode from the | |
520 | * extended attribute value @value. @size indicates the size of the | |
521 | * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0. | |
7b41b173 | 522 | * Note that @name is the remainder of the attribute name after the |
1da177e4 LT |
523 | * security. prefix has been removed. |
524 | * Return 0 on success. | |
525 | * @inode_listsecurity: | |
526 | * Copy the extended attribute names for the security labels | |
527 | * associated with @inode into @buffer. The maximum size of @buffer | |
528 | * is specified by @buffer_size. @buffer may be NULL to request | |
529 | * the size of the buffer required. | |
530 | * Returns number of bytes used/required on success. | |
b5376771 SH |
531 | * @inode_need_killpriv: |
532 | * Called when an inode has been changed. | |
533 | * @dentry is the dentry being changed. | |
534 | * Return <0 on error to abort the inode change operation. | |
535 | * Return 0 if inode_killpriv does not need to be called. | |
536 | * Return >0 if inode_killpriv does need to be called. | |
537 | * @inode_killpriv: | |
538 | * The setuid bit is being removed. Remove similar security labels. | |
539 | * Called with the dentry->d_inode->i_mutex held. | |
540 | * @dentry is the dentry being changed. | |
541 | * Return 0 on success. If error is returned, then the operation | |
542 | * causing setuid bit removal is failed. | |
8a076191 AD |
543 | * @inode_getsecid: |
544 | * Get the secid associated with the node. | |
545 | * @inode contains a pointer to the inode. | |
546 | * @secid contains a pointer to the location where result will be saved. | |
547 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
548 | * |
549 | * Security hooks for file operations | |
550 | * | |
551 | * @file_permission: | |
552 | * Check file permissions before accessing an open file. This hook is | |
553 | * called by various operations that read or write files. A security | |
554 | * module can use this hook to perform additional checking on these | |
555 | * operations, e.g. to revalidate permissions on use to support privilege | |
556 | * bracketing or policy changes. Notice that this hook is used when the | |
557 | * actual read/write operations are performed, whereas the | |
558 | * inode_security_ops hook is called when a file is opened (as well as | |
559 | * many other operations). | |
560 | * Caveat: Although this hook can be used to revalidate permissions for | |
561 | * various system call operations that read or write files, it does not | |
562 | * address the revalidation of permissions for memory-mapped files. | |
563 | * Security modules must handle this separately if they need such | |
564 | * revalidation. | |
565 | * @file contains the file structure being accessed. | |
566 | * @mask contains the requested permissions. | |
567 | * Return 0 if permission is granted. | |
568 | * @file_alloc_security: | |
569 | * Allocate and attach a security structure to the file->f_security field. | |
570 | * The security field is initialized to NULL when the structure is first | |
571 | * created. | |
572 | * @file contains the file structure to secure. | |
573 | * Return 0 if the hook is successful and permission is granted. | |
574 | * @file_free_security: | |
575 | * Deallocate and free any security structures stored in file->f_security. | |
576 | * @file contains the file structure being modified. | |
577 | * @file_ioctl: | |
578 | * @file contains the file structure. | |
579 | * @cmd contains the operation to perform. | |
580 | * @arg contains the operational arguments. | |
581 | * Check permission for an ioctl operation on @file. Note that @arg can | |
582 | * sometimes represents a user space pointer; in other cases, it may be a | |
583 | * simple integer value. When @arg represents a user space pointer, it | |
584 | * should never be used by the security module. | |
585 | * Return 0 if permission is granted. | |
586 | * @file_mmap : | |
587 | * Check permissions for a mmap operation. The @file may be NULL, e.g. | |
588 | * if mapping anonymous memory. | |
589 | * @file contains the file structure for file to map (may be NULL). | |
590 | * @reqprot contains the protection requested by the application. | |
591 | * @prot contains the protection that will be applied by the kernel. | |
592 | * @flags contains the operational flags. | |
593 | * Return 0 if permission is granted. | |
594 | * @file_mprotect: | |
595 | * Check permissions before changing memory access permissions. | |
596 | * @vma contains the memory region to modify. | |
597 | * @reqprot contains the protection requested by the application. | |
598 | * @prot contains the protection that will be applied by the kernel. | |
599 | * Return 0 if permission is granted. | |
600 | * @file_lock: | |
601 | * Check permission before performing file locking operations. | |
602 | * Note: this hook mediates both flock and fcntl style locks. | |
603 | * @file contains the file structure. | |
604 | * @cmd contains the posix-translated lock operation to perform | |
605 | * (e.g. F_RDLCK, F_WRLCK). | |
606 | * Return 0 if permission is granted. | |
607 | * @file_fcntl: | |
608 | * Check permission before allowing the file operation specified by @cmd | |
609 | * from being performed on the file @file. Note that @arg can sometimes | |
610 | * represents a user space pointer; in other cases, it may be a simple | |
611 | * integer value. When @arg represents a user space pointer, it should | |
612 | * never be used by the security module. | |
613 | * @file contains the file structure. | |
614 | * @cmd contains the operation to be performed. | |
615 | * @arg contains the operational arguments. | |
616 | * Return 0 if permission is granted. | |
617 | * @file_set_fowner: | |
618 | * Save owner security information (typically from current->security) in | |
619 | * file->f_security for later use by the send_sigiotask hook. | |
620 | * @file contains the file structure to update. | |
621 | * Return 0 on success. | |
622 | * @file_send_sigiotask: | |
623 | * Check permission for the file owner @fown to send SIGIO or SIGURG to the | |
624 | * process @tsk. Note that this hook is sometimes called from interrupt. | |
625 | * Note that the fown_struct, @fown, is never outside the context of a | |
626 | * struct file, so the file structure (and associated security information) | |
627 | * can always be obtained: | |
b385a144 | 628 | * container_of(fown, struct file, f_owner) |
7b41b173 | 629 | * @tsk contains the structure of task receiving signal. |
1da177e4 LT |
630 | * @fown contains the file owner information. |
631 | * @sig is the signal that will be sent. When 0, kernel sends SIGIO. | |
632 | * Return 0 if permission is granted. | |
633 | * @file_receive: | |
634 | * This hook allows security modules to control the ability of a process | |
635 | * to receive an open file descriptor via socket IPC. | |
636 | * @file contains the file structure being received. | |
637 | * Return 0 if permission is granted. | |
638 | * | |
788e7dd4 YN |
639 | * Security hook for dentry |
640 | * | |
641 | * @dentry_open | |
642 | * Save open-time permission checking state for later use upon | |
643 | * file_permission, and recheck access if anything has changed | |
644 | * since inode_permission. | |
645 | * | |
1da177e4 LT |
646 | * Security hooks for task operations. |
647 | * | |
648 | * @task_create: | |
649 | * Check permission before creating a child process. See the clone(2) | |
650 | * manual page for definitions of the @clone_flags. | |
651 | * @clone_flags contains the flags indicating what should be shared. | |
652 | * Return 0 if permission is granted. | |
ee18d64c DH |
653 | * @cred_alloc_blank: |
654 | * @cred points to the credentials. | |
655 | * @gfp indicates the atomicity of any memory allocations. | |
656 | * Only allocate sufficient memory and attach to @cred such that | |
657 | * cred_transfer() will not get ENOMEM. | |
f1752eec DH |
658 | * @cred_free: |
659 | * @cred points to the credentials. | |
660 | * Deallocate and clear the cred->security field in a set of credentials. | |
d84f4f99 DH |
661 | * @cred_prepare: |
662 | * @new points to the new credentials. | |
663 | * @old points to the original credentials. | |
664 | * @gfp indicates the atomicity of any memory allocations. | |
665 | * Prepare a new set of credentials by copying the data from the old set. | |
ee18d64c DH |
666 | * @cred_transfer: |
667 | * @new points to the new credentials. | |
668 | * @old points to the original credentials. | |
669 | * Transfer data from original creds to new creds | |
3a3b7ce9 DH |
670 | * @kernel_act_as: |
671 | * Set the credentials for a kernel service to act as (subjective context). | |
672 | * @new points to the credentials to be modified. | |
673 | * @secid specifies the security ID to be set | |
674 | * The current task must be the one that nominated @secid. | |
675 | * Return 0 if successful. | |
676 | * @kernel_create_files_as: | |
677 | * Set the file creation context in a set of credentials to be the same as | |
678 | * the objective context of the specified inode. | |
679 | * @new points to the credentials to be modified. | |
680 | * @inode points to the inode to use as a reference. | |
681 | * The current task must be the one that nominated @inode. | |
682 | * Return 0 if successful. | |
9188499c EP |
683 | * @kernel_module_request: |
684 | * Ability to trigger the kernel to automatically upcall to userspace for | |
685 | * userspace to load a kernel module with the given name. | |
dd8dbf2e | 686 | * @kmod_name name of the module requested by the kernel |
f322abf8 | 687 | * Return 0 if successful. |
d84f4f99 | 688 | * @task_fix_setuid: |
1da177e4 LT |
689 | * Update the module's state after setting one or more of the user |
690 | * identity attributes of the current process. The @flags parameter | |
691 | * indicates which of the set*uid system calls invoked this hook. If | |
d84f4f99 DH |
692 | * @new is the set of credentials that will be installed. Modifications |
693 | * should be made to this rather than to @current->cred. | |
694 | * @old is the set of credentials that are being replaces | |
1da177e4 LT |
695 | * @flags contains one of the LSM_SETID_* values. |
696 | * Return 0 on success. | |
1da177e4 LT |
697 | * @task_setpgid: |
698 | * Check permission before setting the process group identifier of the | |
699 | * process @p to @pgid. | |
700 | * @p contains the task_struct for process being modified. | |
701 | * @pgid contains the new pgid. | |
702 | * Return 0 if permission is granted. | |
703 | * @task_getpgid: | |
704 | * Check permission before getting the process group identifier of the | |
705 | * process @p. | |
706 | * @p contains the task_struct for the process. | |
707 | * Return 0 if permission is granted. | |
708 | * @task_getsid: | |
709 | * Check permission before getting the session identifier of the process | |
710 | * @p. | |
711 | * @p contains the task_struct for the process. | |
712 | * Return 0 if permission is granted. | |
f9008e4c DQ |
713 | * @task_getsecid: |
714 | * Retrieve the security identifier of the process @p. | |
715 | * @p contains the task_struct for the process and place is into @secid. | |
8a076191 AD |
716 | * In case of failure, @secid will be set to zero. |
717 | * | |
1da177e4 LT |
718 | * @task_setnice: |
719 | * Check permission before setting the nice value of @p to @nice. | |
720 | * @p contains the task_struct of process. | |
721 | * @nice contains the new nice value. | |
722 | * Return 0 if permission is granted. | |
03e68060 JM |
723 | * @task_setioprio |
724 | * Check permission before setting the ioprio value of @p to @ioprio. | |
725 | * @p contains the task_struct of process. | |
726 | * @ioprio contains the new ioprio value | |
727 | * Return 0 if permission is granted. | |
a1836a42 DQ |
728 | * @task_getioprio |
729 | * Check permission before getting the ioprio value of @p. | |
730 | * @p contains the task_struct of process. | |
731 | * Return 0 if permission is granted. | |
1da177e4 LT |
732 | * @task_setrlimit: |
733 | * Check permission before setting the resource limits of the current | |
734 | * process for @resource to @new_rlim. The old resource limit values can | |
735 | * be examined by dereferencing (current->signal->rlim + resource). | |
736 | * @resource contains the resource whose limit is being set. | |
737 | * @new_rlim contains the new limits for @resource. | |
738 | * Return 0 if permission is granted. | |
739 | * @task_setscheduler: | |
740 | * Check permission before setting scheduling policy and/or parameters of | |
741 | * process @p based on @policy and @lp. | |
742 | * @p contains the task_struct for process. | |
743 | * @policy contains the scheduling policy. | |
744 | * @lp contains the scheduling parameters. | |
745 | * Return 0 if permission is granted. | |
746 | * @task_getscheduler: | |
747 | * Check permission before obtaining scheduling information for process | |
748 | * @p. | |
749 | * @p contains the task_struct for process. | |
750 | * Return 0 if permission is granted. | |
35601547 DQ |
751 | * @task_movememory |
752 | * Check permission before moving memory owned by process @p. | |
753 | * @p contains the task_struct for process. | |
754 | * Return 0 if permission is granted. | |
1da177e4 LT |
755 | * @task_kill: |
756 | * Check permission before sending signal @sig to @p. @info can be NULL, | |
757 | * the constant 1, or a pointer to a siginfo structure. If @info is 1 or | |
758 | * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming | |
759 | * from the kernel and should typically be permitted. | |
760 | * SIGIO signals are handled separately by the send_sigiotask hook in | |
761 | * file_security_ops. | |
762 | * @p contains the task_struct for process. | |
763 | * @info contains the signal information. | |
764 | * @sig contains the signal value. | |
f9008e4c | 765 | * @secid contains the sid of the process where the signal originated |
1da177e4 LT |
766 | * Return 0 if permission is granted. |
767 | * @task_wait: | |
768 | * Check permission before allowing a process to reap a child process @p | |
769 | * and collect its status information. | |
770 | * @p contains the task_struct for process. | |
771 | * Return 0 if permission is granted. | |
772 | * @task_prctl: | |
773 | * Check permission before performing a process control operation on the | |
774 | * current process. | |
775 | * @option contains the operation. | |
776 | * @arg2 contains a argument. | |
777 | * @arg3 contains a argument. | |
778 | * @arg4 contains a argument. | |
779 | * @arg5 contains a argument. | |
d84f4f99 DH |
780 | * Return -ENOSYS if no-one wanted to handle this op, any other value to |
781 | * cause prctl() to return immediately with that value. | |
1da177e4 | 782 | * @task_to_inode: |
7b41b173 EP |
783 | * Set the security attributes for an inode based on an associated task's |
784 | * security attributes, e.g. for /proc/pid inodes. | |
1da177e4 LT |
785 | * @p contains the task_struct for the task. |
786 | * @inode contains the inode structure for the inode. | |
787 | * | |
788 | * Security hooks for Netlink messaging. | |
789 | * | |
790 | * @netlink_send: | |
791 | * Save security information for a netlink message so that permission | |
792 | * checking can be performed when the message is processed. The security | |
793 | * information can be saved using the eff_cap field of the | |
7b41b173 | 794 | * netlink_skb_parms structure. Also may be used to provide fine |
1da177e4 LT |
795 | * grained control over message transmission. |
796 | * @sk associated sock of task sending the message., | |
797 | * @skb contains the sk_buff structure for the netlink message. | |
798 | * Return 0 if the information was successfully saved and message | |
799 | * is allowed to be transmitted. | |
800 | * @netlink_recv: | |
801 | * Check permission before processing the received netlink message in | |
802 | * @skb. | |
803 | * @skb contains the sk_buff structure for the netlink message. | |
c7bdb545 | 804 | * @cap indicates the capability required |
1da177e4 LT |
805 | * Return 0 if permission is granted. |
806 | * | |
807 | * Security hooks for Unix domain networking. | |
808 | * | |
809 | * @unix_stream_connect: | |
810 | * Check permissions before establishing a Unix domain stream connection | |
811 | * between @sock and @other. | |
3610cda5 DM |
812 | * @sock contains the sock structure. |
813 | * @other contains the peer sock structure. | |
814 | * @newsk contains the new sock structure. | |
1da177e4 LT |
815 | * Return 0 if permission is granted. |
816 | * @unix_may_send: | |
817 | * Check permissions before connecting or sending datagrams from @sock to | |
818 | * @other. | |
819 | * @sock contains the socket structure. | |
820 | * @sock contains the peer socket structure. | |
821 | * Return 0 if permission is granted. | |
822 | * | |
823 | * The @unix_stream_connect and @unix_may_send hooks were necessary because | |
824 | * Linux provides an alternative to the conventional file name space for Unix | |
825 | * domain sockets. Whereas binding and connecting to sockets in the file name | |
826 | * space is mediated by the typical file permissions (and caught by the mknod | |
827 | * and permission hooks in inode_security_ops), binding and connecting to | |
828 | * sockets in the abstract name space is completely unmediated. Sufficient | |
829 | * control of Unix domain sockets in the abstract name space isn't possible | |
830 | * using only the socket layer hooks, since we need to know the actual target | |
831 | * socket, which is not looked up until we are inside the af_unix code. | |
832 | * | |
833 | * Security hooks for socket operations. | |
834 | * | |
835 | * @socket_create: | |
836 | * Check permissions prior to creating a new socket. | |
837 | * @family contains the requested protocol family. | |
838 | * @type contains the requested communications type. | |
839 | * @protocol contains the requested protocol. | |
840 | * @kern set to 1 if a kernel socket. | |
841 | * Return 0 if permission is granted. | |
842 | * @socket_post_create: | |
843 | * This hook allows a module to update or allocate a per-socket security | |
844 | * structure. Note that the security field was not added directly to the | |
845 | * socket structure, but rather, the socket security information is stored | |
846 | * in the associated inode. Typically, the inode alloc_security hook will | |
847 | * allocate and and attach security information to | |
848 | * sock->inode->i_security. This hook may be used to update the | |
849 | * sock->inode->i_security field with additional information that wasn't | |
850 | * available when the inode was allocated. | |
851 | * @sock contains the newly created socket structure. | |
852 | * @family contains the requested protocol family. | |
853 | * @type contains the requested communications type. | |
854 | * @protocol contains the requested protocol. | |
855 | * @kern set to 1 if a kernel socket. | |
856 | * @socket_bind: | |
857 | * Check permission before socket protocol layer bind operation is | |
858 | * performed and the socket @sock is bound to the address specified in the | |
859 | * @address parameter. | |
860 | * @sock contains the socket structure. | |
861 | * @address contains the address to bind to. | |
862 | * @addrlen contains the length of address. | |
7b41b173 | 863 | * Return 0 if permission is granted. |
1da177e4 LT |
864 | * @socket_connect: |
865 | * Check permission before socket protocol layer connect operation | |
866 | * attempts to connect socket @sock to a remote address, @address. | |
867 | * @sock contains the socket structure. | |
868 | * @address contains the address of remote endpoint. | |
869 | * @addrlen contains the length of address. | |
7b41b173 | 870 | * Return 0 if permission is granted. |
1da177e4 LT |
871 | * @socket_listen: |
872 | * Check permission before socket protocol layer listen operation. | |
873 | * @sock contains the socket structure. | |
874 | * @backlog contains the maximum length for the pending connection queue. | |
875 | * Return 0 if permission is granted. | |
876 | * @socket_accept: | |
877 | * Check permission before accepting a new connection. Note that the new | |
878 | * socket, @newsock, has been created and some information copied to it, | |
879 | * but the accept operation has not actually been performed. | |
880 | * @sock contains the listening socket structure. | |
881 | * @newsock contains the newly created server socket for connection. | |
882 | * Return 0 if permission is granted. | |
1da177e4 LT |
883 | * @socket_sendmsg: |
884 | * Check permission before transmitting a message to another socket. | |
885 | * @sock contains the socket structure. | |
886 | * @msg contains the message to be transmitted. | |
887 | * @size contains the size of message. | |
888 | * Return 0 if permission is granted. | |
889 | * @socket_recvmsg: | |
890 | * Check permission before receiving a message from a socket. | |
891 | * @sock contains the socket structure. | |
892 | * @msg contains the message structure. | |
893 | * @size contains the size of message structure. | |
894 | * @flags contains the operational flags. | |
7b41b173 | 895 | * Return 0 if permission is granted. |
1da177e4 LT |
896 | * @socket_getsockname: |
897 | * Check permission before the local address (name) of the socket object | |
898 | * @sock is retrieved. | |
899 | * @sock contains the socket structure. | |
900 | * Return 0 if permission is granted. | |
901 | * @socket_getpeername: | |
902 | * Check permission before the remote address (name) of a socket object | |
903 | * @sock is retrieved. | |
904 | * @sock contains the socket structure. | |
905 | * Return 0 if permission is granted. | |
906 | * @socket_getsockopt: | |
907 | * Check permissions before retrieving the options associated with socket | |
908 | * @sock. | |
909 | * @sock contains the socket structure. | |
910 | * @level contains the protocol level to retrieve option from. | |
911 | * @optname contains the name of option to retrieve. | |
912 | * Return 0 if permission is granted. | |
913 | * @socket_setsockopt: | |
914 | * Check permissions before setting the options associated with socket | |
915 | * @sock. | |
916 | * @sock contains the socket structure. | |
917 | * @level contains the protocol level to set options for. | |
918 | * @optname contains the name of the option to set. | |
7b41b173 | 919 | * Return 0 if permission is granted. |
1da177e4 LT |
920 | * @socket_shutdown: |
921 | * Checks permission before all or part of a connection on the socket | |
922 | * @sock is shut down. | |
923 | * @sock contains the socket structure. | |
924 | * @how contains the flag indicating how future sends and receives are handled. | |
925 | * Return 0 if permission is granted. | |
926 | * @socket_sock_rcv_skb: | |
927 | * Check permissions on incoming network packets. This hook is distinct | |
928 | * from Netfilter's IP input hooks since it is the first time that the | |
929 | * incoming sk_buff @skb has been associated with a particular socket, @sk. | |
0ed73185 | 930 | * Must not sleep inside this hook because some callers hold spinlocks. |
1da177e4 LT |
931 | * @sk contains the sock (not socket) associated with the incoming sk_buff. |
932 | * @skb contains the incoming network data. | |
6da34bae | 933 | * @socket_getpeersec_stream: |
1da177e4 | 934 | * This hook allows the security module to provide peer socket security |
6da34bae SH |
935 | * state for unix or connected tcp sockets to userspace via getsockopt |
936 | * SO_GETPEERSEC. For tcp sockets this can be meaningful if the | |
937 | * socket is associated with an ipsec SA. | |
1da177e4 LT |
938 | * @sock is the local socket. |
939 | * @optval userspace memory where the security state is to be copied. | |
940 | * @optlen userspace int where the module should copy the actual length | |
941 | * of the security state. | |
942 | * @len as input is the maximum length to copy to userspace provided | |
943 | * by the caller. | |
944 | * Return 0 if all is well, otherwise, typical getsockopt return | |
945 | * values. | |
6da34bae | 946 | * @socket_getpeersec_dgram: |
7b41b173 EP |
947 | * This hook allows the security module to provide peer socket security |
948 | * state for udp sockets on a per-packet basis to userspace via | |
949 | * getsockopt SO_GETPEERSEC. The application must first have indicated | |
950 | * the IP_PASSSEC option via getsockopt. It can then retrieve the | |
951 | * security state returned by this hook for a packet via the SCM_SECURITY | |
952 | * ancillary message type. | |
953 | * @skb is the skbuff for the packet being queried | |
954 | * @secdata is a pointer to a buffer in which to copy the security data | |
955 | * @seclen is the maximum length for @secdata | |
956 | * Return 0 on success, error on failure. | |
1da177e4 | 957 | * @sk_alloc_security: |
7b41b173 EP |
958 | * Allocate and attach a security structure to the sk->sk_security field, |
959 | * which is used to copy security attributes between local stream sockets. | |
1da177e4 LT |
960 | * @sk_free_security: |
961 | * Deallocate security structure. | |
892c141e VY |
962 | * @sk_clone_security: |
963 | * Clone/copy security structure. | |
beb8d13b VY |
964 | * @sk_getsecid: |
965 | * Retrieve the LSM-specific secid for the sock to enable caching of network | |
df71837d | 966 | * authorizations. |
4237c75c VY |
967 | * @sock_graft: |
968 | * Sets the socket's isec sid to the sock's sid. | |
969 | * @inet_conn_request: | |
970 | * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid. | |
971 | * @inet_csk_clone: | |
972 | * Sets the new child socket's sid to the openreq sid. | |
6b877699 | 973 | * @inet_conn_established: |
7b41b173 | 974 | * Sets the connection's peersid to the secmark on skb. |
2606fd1f EP |
975 | * @secmark_relabel_packet: |
976 | * check if the process should be allowed to relabel packets to the given secid | |
977 | * @security_secmark_refcount_inc | |
978 | * tells the LSM to increment the number of secmark labeling rules loaded | |
979 | * @security_secmark_refcount_dec | |
980 | * tells the LSM to decrement the number of secmark labeling rules loaded | |
4237c75c VY |
981 | * @req_classify_flow: |
982 | * Sets the flow's sid to the openreq sid. | |
2b980dbd PM |
983 | * @tun_dev_create: |
984 | * Check permissions prior to creating a new TUN device. | |
985 | * @tun_dev_post_create: | |
986 | * This hook allows a module to update or allocate a per-socket security | |
987 | * structure. | |
988 | * @sk contains the newly created sock structure. | |
989 | * @tun_dev_attach: | |
990 | * Check permissions prior to attaching to a persistent TUN device. This | |
991 | * hook can also be used by the module to update any security state | |
992 | * associated with the TUN device's sock structure. | |
993 | * @sk contains the existing sock structure. | |
df71837d TJ |
994 | * |
995 | * Security hooks for XFRM operations. | |
996 | * | |
997 | * @xfrm_policy_alloc_security: | |
03e1ad7b PM |
998 | * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy |
999 | * Database used by the XFRM system. | |
df71837d TJ |
1000 | * @sec_ctx contains the security context information being provided by |
1001 | * the user-level policy update program (e.g., setkey). | |
e0d1caa7 | 1002 | * Allocate a security structure to the xp->security field; the security |
c1a856c9 | 1003 | * field is initialized to NULL when the xfrm_policy is allocated. |
df71837d TJ |
1004 | * Return 0 if operation was successful (memory to allocate, legal context) |
1005 | * @xfrm_policy_clone_security: | |
03e1ad7b PM |
1006 | * @old_ctx contains an existing xfrm_sec_ctx. |
1007 | * @new_ctxp contains a new xfrm_sec_ctx being cloned from old. | |
1008 | * Allocate a security structure in new_ctxp that contains the | |
1009 | * information from the old_ctx structure. | |
df71837d TJ |
1010 | * Return 0 if operation was successful (memory to allocate). |
1011 | * @xfrm_policy_free_security: | |
03e1ad7b | 1012 | * @ctx contains the xfrm_sec_ctx |
c8c05a8e CZ |
1013 | * Deallocate xp->security. |
1014 | * @xfrm_policy_delete_security: | |
03e1ad7b | 1015 | * @ctx contains the xfrm_sec_ctx. |
c8c05a8e | 1016 | * Authorize deletion of xp->security. |
df71837d TJ |
1017 | * @xfrm_state_alloc_security: |
1018 | * @x contains the xfrm_state being added to the Security Association | |
1019 | * Database by the XFRM system. | |
1020 | * @sec_ctx contains the security context information being provided by | |
1021 | * the user-level SA generation program (e.g., setkey or racoon). | |
e0d1caa7 VY |
1022 | * @secid contains the secid from which to take the mls portion of the context. |
1023 | * Allocate a security structure to the x->security field; the security | |
1024 | * field is initialized to NULL when the xfrm_state is allocated. Set the | |
1025 | * context to correspond to either sec_ctx or polsec, with the mls portion | |
1026 | * taken from secid in the latter case. | |
df71837d TJ |
1027 | * Return 0 if operation was successful (memory to allocate, legal context). |
1028 | * @xfrm_state_free_security: | |
1029 | * @x contains the xfrm_state. | |
c8c05a8e CZ |
1030 | * Deallocate x->security. |
1031 | * @xfrm_state_delete_security: | |
1032 | * @x contains the xfrm_state. | |
1033 | * Authorize deletion of x->security. | |
df71837d | 1034 | * @xfrm_policy_lookup: |
03e1ad7b | 1035 | * @ctx contains the xfrm_sec_ctx for which the access control is being |
df71837d | 1036 | * checked. |
e0d1caa7 | 1037 | * @fl_secid contains the flow security label that is used to authorize |
df71837d TJ |
1038 | * access to the policy xp. |
1039 | * @dir contains the direction of the flow (input or output). | |
e0d1caa7 | 1040 | * Check permission when a flow selects a xfrm_policy for processing |
df71837d TJ |
1041 | * XFRMs on a packet. The hook is called when selecting either a |
1042 | * per-socket policy or a generic xfrm policy. | |
5b368e61 VY |
1043 | * Return 0 if permission is granted, -ESRCH otherwise, or -errno |
1044 | * on other errors. | |
e0d1caa7 VY |
1045 | * @xfrm_state_pol_flow_match: |
1046 | * @x contains the state to match. | |
1047 | * @xp contains the policy to check for a match. | |
1048 | * @fl contains the flow to check for a match. | |
1049 | * Return 1 if there is a match. | |
e0d1caa7 VY |
1050 | * @xfrm_decode_session: |
1051 | * @skb points to skb to decode. | |
beb8d13b VY |
1052 | * @secid points to the flow key secid to set. |
1053 | * @ckall says if all xfrms used should be checked for same secid. | |
1054 | * Return 0 if ckall is zero or all xfrms used have the same secid. | |
1da177e4 | 1055 | * |
29db9190 DH |
1056 | * Security hooks affecting all Key Management operations |
1057 | * | |
1058 | * @key_alloc: | |
1059 | * Permit allocation of a key and assign security data. Note that key does | |
1060 | * not have a serial number assigned at this point. | |
1061 | * @key points to the key. | |
7e047ef5 | 1062 | * @flags is the allocation flags |
29db9190 DH |
1063 | * Return 0 if permission is granted, -ve error otherwise. |
1064 | * @key_free: | |
1065 | * Notification of destruction; free security data. | |
1066 | * @key points to the key. | |
1067 | * No return value. | |
1068 | * @key_permission: | |
1069 | * See whether a specific operational right is granted to a process on a | |
7b41b173 | 1070 | * key. |
29db9190 | 1071 | * @key_ref refers to the key (key pointer + possession attribute bit). |
d84f4f99 | 1072 | * @cred points to the credentials to provide the context against which to |
7b41b173 | 1073 | * evaluate the security data on the key. |
29db9190 | 1074 | * @perm describes the combination of permissions required of this key. |
ad9c2b04 | 1075 | * Return 0 if permission is granted, -ve error otherwise. |
70a5bb72 DH |
1076 | * @key_getsecurity: |
1077 | * Get a textual representation of the security context attached to a key | |
1078 | * for the purposes of honouring KEYCTL_GETSECURITY. This function | |
1079 | * allocates the storage for the NUL-terminated string and the caller | |
1080 | * should free it. | |
1081 | * @key points to the key to be queried. | |
1082 | * @_buffer points to a pointer that should be set to point to the | |
1083 | * resulting string (if no label or an error occurs). | |
1084 | * Return the length of the string (including terminating NUL) or -ve if | |
1085 | * an error. | |
1086 | * May also return 0 (and a NULL buffer pointer) if there is no label. | |
29db9190 | 1087 | * |
1da177e4 LT |
1088 | * Security hooks affecting all System V IPC operations. |
1089 | * | |
1090 | * @ipc_permission: | |
1091 | * Check permissions for access to IPC | |
1092 | * @ipcp contains the kernel IPC permission structure | |
1093 | * @flag contains the desired (requested) permission set | |
1094 | * Return 0 if permission is granted. | |
8a076191 AD |
1095 | * @ipc_getsecid: |
1096 | * Get the secid associated with the ipc object. | |
1097 | * @ipcp contains the kernel IPC permission structure. | |
1098 | * @secid contains a pointer to the location where result will be saved. | |
1099 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
1100 | * |
1101 | * Security hooks for individual messages held in System V IPC message queues | |
1102 | * @msg_msg_alloc_security: | |
1103 | * Allocate and attach a security structure to the msg->security field. | |
1104 | * The security field is initialized to NULL when the structure is first | |
1105 | * created. | |
1106 | * @msg contains the message structure to be modified. | |
1107 | * Return 0 if operation was successful and permission is granted. | |
1108 | * @msg_msg_free_security: | |
1109 | * Deallocate the security structure for this message. | |
1110 | * @msg contains the message structure to be modified. | |
1111 | * | |
1112 | * Security hooks for System V IPC Message Queues | |
1113 | * | |
1114 | * @msg_queue_alloc_security: | |
1115 | * Allocate and attach a security structure to the | |
1116 | * msq->q_perm.security field. The security field is initialized to | |
1117 | * NULL when the structure is first created. | |
1118 | * @msq contains the message queue structure to be modified. | |
1119 | * Return 0 if operation was successful and permission is granted. | |
1120 | * @msg_queue_free_security: | |
1121 | * Deallocate security structure for this message queue. | |
1122 | * @msq contains the message queue structure to be modified. | |
1123 | * @msg_queue_associate: | |
1124 | * Check permission when a message queue is requested through the | |
1125 | * msgget system call. This hook is only called when returning the | |
1126 | * message queue identifier for an existing message queue, not when a | |
1127 | * new message queue is created. | |
1128 | * @msq contains the message queue to act upon. | |
1129 | * @msqflg contains the operation control flags. | |
1130 | * Return 0 if permission is granted. | |
1131 | * @msg_queue_msgctl: | |
1132 | * Check permission when a message control operation specified by @cmd | |
1133 | * is to be performed on the message queue @msq. | |
1134 | * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO. | |
1135 | * @msq contains the message queue to act upon. May be NULL. | |
1136 | * @cmd contains the operation to be performed. | |
7b41b173 | 1137 | * Return 0 if permission is granted. |
1da177e4 LT |
1138 | * @msg_queue_msgsnd: |
1139 | * Check permission before a message, @msg, is enqueued on the message | |
1140 | * queue, @msq. | |
1141 | * @msq contains the message queue to send message to. | |
1142 | * @msg contains the message to be enqueued. | |
1143 | * @msqflg contains operational flags. | |
1144 | * Return 0 if permission is granted. | |
1145 | * @msg_queue_msgrcv: | |
1146 | * Check permission before a message, @msg, is removed from the message | |
7b41b173 EP |
1147 | * queue, @msq. The @target task structure contains a pointer to the |
1148 | * process that will be receiving the message (not equal to the current | |
1da177e4 LT |
1149 | * process when inline receives are being performed). |
1150 | * @msq contains the message queue to retrieve message from. | |
1151 | * @msg contains the message destination. | |
1152 | * @target contains the task structure for recipient process. | |
1153 | * @type contains the type of message requested. | |
1154 | * @mode contains the operational flags. | |
1155 | * Return 0 if permission is granted. | |
1156 | * | |
1157 | * Security hooks for System V Shared Memory Segments | |
1158 | * | |
1159 | * @shm_alloc_security: | |
1160 | * Allocate and attach a security structure to the shp->shm_perm.security | |
1161 | * field. The security field is initialized to NULL when the structure is | |
1162 | * first created. | |
1163 | * @shp contains the shared memory structure to be modified. | |
1164 | * Return 0 if operation was successful and permission is granted. | |
1165 | * @shm_free_security: | |
1166 | * Deallocate the security struct for this memory segment. | |
1167 | * @shp contains the shared memory structure to be modified. | |
1168 | * @shm_associate: | |
1169 | * Check permission when a shared memory region is requested through the | |
1170 | * shmget system call. This hook is only called when returning the shared | |
1171 | * memory region identifier for an existing region, not when a new shared | |
1172 | * memory region is created. | |
1173 | * @shp contains the shared memory structure to be modified. | |
1174 | * @shmflg contains the operation control flags. | |
1175 | * Return 0 if permission is granted. | |
1176 | * @shm_shmctl: | |
1177 | * Check permission when a shared memory control operation specified by | |
1178 | * @cmd is to be performed on the shared memory region @shp. | |
1179 | * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO. | |
1180 | * @shp contains shared memory structure to be modified. | |
1181 | * @cmd contains the operation to be performed. | |
1182 | * Return 0 if permission is granted. | |
1183 | * @shm_shmat: | |
1184 | * Check permissions prior to allowing the shmat system call to attach the | |
1185 | * shared memory segment @shp to the data segment of the calling process. | |
1186 | * The attaching address is specified by @shmaddr. | |
1187 | * @shp contains the shared memory structure to be modified. | |
1188 | * @shmaddr contains the address to attach memory region to. | |
1189 | * @shmflg contains the operational flags. | |
1190 | * Return 0 if permission is granted. | |
1191 | * | |
1192 | * Security hooks for System V Semaphores | |
1193 | * | |
1194 | * @sem_alloc_security: | |
1195 | * Allocate and attach a security structure to the sma->sem_perm.security | |
1196 | * field. The security field is initialized to NULL when the structure is | |
1197 | * first created. | |
1198 | * @sma contains the semaphore structure | |
1199 | * Return 0 if operation was successful and permission is granted. | |
1200 | * @sem_free_security: | |
1201 | * deallocate security struct for this semaphore | |
1202 | * @sma contains the semaphore structure. | |
1203 | * @sem_associate: | |
1204 | * Check permission when a semaphore is requested through the semget | |
1205 | * system call. This hook is only called when returning the semaphore | |
1206 | * identifier for an existing semaphore, not when a new one must be | |
1207 | * created. | |
1208 | * @sma contains the semaphore structure. | |
1209 | * @semflg contains the operation control flags. | |
1210 | * Return 0 if permission is granted. | |
1211 | * @sem_semctl: | |
1212 | * Check permission when a semaphore operation specified by @cmd is to be | |
7b41b173 | 1213 | * performed on the semaphore @sma. The @sma may be NULL, e.g. for |
1da177e4 LT |
1214 | * IPC_INFO or SEM_INFO. |
1215 | * @sma contains the semaphore structure. May be NULL. | |
1216 | * @cmd contains the operation to be performed. | |
1217 | * Return 0 if permission is granted. | |
1218 | * @sem_semop | |
1219 | * Check permissions before performing operations on members of the | |
7b41b173 EP |
1220 | * semaphore set @sma. If the @alter flag is nonzero, the semaphore set |
1221 | * may be modified. | |
1da177e4 LT |
1222 | * @sma contains the semaphore structure. |
1223 | * @sops contains the operations to perform. | |
1224 | * @nsops contains the number of operations to perform. | |
1225 | * @alter contains the flag indicating whether changes are to be made. | |
1226 | * Return 0 if permission is granted. | |
1227 | * | |
9e48858f | 1228 | * @ptrace_access_check: |
5cd9c58f | 1229 | * Check permission before allowing the current process to trace the |
1da177e4 LT |
1230 | * @child process. |
1231 | * Security modules may also want to perform a process tracing check | |
1232 | * during an execve in the set_security or apply_creds hooks of | |
d84f4f99 | 1233 | * tracing check during an execve in the bprm_set_creds hook of |
1da177e4 LT |
1234 | * binprm_security_ops if the process is being traced and its security |
1235 | * attributes would be changed by the execve. | |
5cd9c58f | 1236 | * @child contains the task_struct structure for the target process. |
006ebb40 | 1237 | * @mode contains the PTRACE_MODE flags indicating the form of access. |
1da177e4 | 1238 | * Return 0 if permission is granted. |
5cd9c58f DH |
1239 | * @ptrace_traceme: |
1240 | * Check that the @parent process has sufficient permission to trace the | |
1241 | * current process before allowing the current process to present itself | |
1242 | * to the @parent process for tracing. | |
9e48858f | 1243 | * The parent process will still have to undergo the ptrace_access_check |
5cd9c58f DH |
1244 | * checks before it is allowed to trace this one. |
1245 | * @parent contains the task_struct structure for debugger process. | |
1246 | * Return 0 if permission is granted. | |
1da177e4 LT |
1247 | * @capget: |
1248 | * Get the @effective, @inheritable, and @permitted capability sets for | |
1249 | * the @target process. The hook may also perform permission checking to | |
1250 | * determine if the current process is allowed to see the capability sets | |
1251 | * of the @target process. | |
1252 | * @target contains the task_struct structure for target process. | |
1253 | * @effective contains the effective capability set. | |
1254 | * @inheritable contains the inheritable capability set. | |
1255 | * @permitted contains the permitted capability set. | |
1256 | * Return 0 if the capability sets were successfully obtained. | |
d84f4f99 | 1257 | * @capset: |
1da177e4 | 1258 | * Set the @effective, @inheritable, and @permitted capability sets for |
1cdcbec1 | 1259 | * the current process. |
d84f4f99 DH |
1260 | * @new contains the new credentials structure for target process. |
1261 | * @old contains the current credentials structure for target process. | |
1da177e4 LT |
1262 | * @effective contains the effective capability set. |
1263 | * @inheritable contains the inheritable capability set. | |
1264 | * @permitted contains the permitted capability set. | |
d84f4f99 | 1265 | * Return 0 and update @new if permission is granted. |
12b5989b | 1266 | * @capable: |
3699c53c DH |
1267 | * Check whether the @tsk process has the @cap capability in the indicated |
1268 | * credentials. | |
12b5989b | 1269 | * @tsk contains the task_struct for the process. |
3699c53c | 1270 | * @cred contains the credentials to use. |
3486740a | 1271 | * @ns contains the user namespace we want the capability in |
12b5989b | 1272 | * @cap contains the capability <include/linux/capability.h>. |
3699c53c | 1273 | * @audit: Whether to write an audit message or not |
12b5989b | 1274 | * Return 0 if the capability is granted for @tsk. |
1da177e4 LT |
1275 | * @syslog: |
1276 | * Check permission before accessing the kernel message ring or changing | |
1277 | * logging to the console. | |
7b41b173 | 1278 | * See the syslog(2) manual page for an explanation of the @type values. |
1da177e4 | 1279 | * @type contains the type of action. |
00234592 | 1280 | * @from_file indicates the context of action (if it came from /proc). |
1da177e4 LT |
1281 | * Return 0 if permission is granted. |
1282 | * @settime: | |
1283 | * Check permission to change the system time. | |
1284 | * struct timespec and timezone are defined in include/linux/time.h | |
1285 | * @ts contains new time | |
1286 | * @tz contains new timezone | |
1287 | * Return 0 if permission is granted. | |
1288 | * @vm_enough_memory: | |
1289 | * Check permissions for allocating a new virtual mapping. | |
34b4e4aa | 1290 | * @mm contains the mm struct it is being added to. |
7b41b173 | 1291 | * @pages contains the number of pages. |
1da177e4 LT |
1292 | * Return 0 if permission is granted. |
1293 | * | |
dc49c1f9 | 1294 | * @secid_to_secctx: |
d5630b9d EP |
1295 | * Convert secid to security context. If secdata is NULL the length of |
1296 | * the result will be returned in seclen, but no secdata will be returned. | |
1297 | * This does mean that the length could change between calls to check the | |
1298 | * length and the next call which actually allocates and returns the secdata. | |
dc49c1f9 CZ |
1299 | * @secid contains the security ID. |
1300 | * @secdata contains the pointer that stores the converted security context. | |
d5630b9d | 1301 | * @seclen pointer which contains the length of the data |
63cb3449 | 1302 | * @secctx_to_secid: |
7b41b173 EP |
1303 | * Convert security context to secid. |
1304 | * @secid contains the pointer to the generated security ID. | |
1305 | * @secdata contains the security context. | |
dc49c1f9 CZ |
1306 | * |
1307 | * @release_secctx: | |
1308 | * Release the security context. | |
1309 | * @secdata contains the security context. | |
1310 | * @seclen contains the length of the security context. | |
1311 | * | |
03d37d25 AD |
1312 | * Security hooks for Audit |
1313 | * | |
1314 | * @audit_rule_init: | |
1315 | * Allocate and initialize an LSM audit rule structure. | |
1316 | * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h | |
1317 | * @op contains the operator the rule uses. | |
1318 | * @rulestr contains the context where the rule will be applied to. | |
1319 | * @lsmrule contains a pointer to receive the result. | |
1320 | * Return 0 if @lsmrule has been successfully set, | |
1321 | * -EINVAL in case of an invalid rule. | |
1322 | * | |
1323 | * @audit_rule_known: | |
1324 | * Specifies whether given @rule contains any fields related to current LSM. | |
1325 | * @rule contains the audit rule of interest. | |
1326 | * Return 1 in case of relation found, 0 otherwise. | |
1327 | * | |
1328 | * @audit_rule_match: | |
1329 | * Determine if given @secid matches a rule previously approved | |
1330 | * by @audit_rule_known. | |
1331 | * @secid contains the security id in question. | |
1332 | * @field contains the field which relates to current LSM. | |
1333 | * @op contains the operator that will be used for matching. | |
1334 | * @rule points to the audit rule that will be checked against. | |
1335 | * @actx points to the audit context associated with the check. | |
1336 | * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure. | |
1337 | * | |
1338 | * @audit_rule_free: | |
1339 | * Deallocate the LSM audit rule structure previously allocated by | |
1340 | * audit_rule_init. | |
1341 | * @rule contains the allocated rule | |
1342 | * | |
1ee65e37 DQ |
1343 | * @inode_notifysecctx: |
1344 | * Notify the security module of what the security context of an inode | |
1345 | * should be. Initializes the incore security context managed by the | |
1346 | * security module for this inode. Example usage: NFS client invokes | |
1347 | * this hook to initialize the security context in its incore inode to the | |
1348 | * value provided by the server for the file when the server returned the | |
1349 | * file's attributes to the client. | |
1350 | * | |
1351 | * Must be called with inode->i_mutex locked. | |
1352 | * | |
1353 | * @inode we wish to set the security context of. | |
1354 | * @ctx contains the string which we wish to set in the inode. | |
1355 | * @ctxlen contains the length of @ctx. | |
1356 | * | |
1357 | * @inode_setsecctx: | |
1358 | * Change the security context of an inode. Updates the | |
1359 | * incore security context managed by the security module and invokes the | |
1360 | * fs code as needed (via __vfs_setxattr_noperm) to update any backing | |
1361 | * xattrs that represent the context. Example usage: NFS server invokes | |
1362 | * this hook to change the security context in its incore inode and on the | |
1363 | * backing filesystem to a value provided by the client on a SETATTR | |
1364 | * operation. | |
1365 | * | |
1366 | * Must be called with inode->i_mutex locked. | |
1367 | * | |
1368 | * @dentry contains the inode we wish to set the security context of. | |
1369 | * @ctx contains the string which we wish to set in the inode. | |
1370 | * @ctxlen contains the length of @ctx. | |
1371 | * | |
1372 | * @inode_getsecctx: | |
1373 | * Returns a string containing all relavent security context information | |
1374 | * | |
1375 | * @inode we wish to set the security context of. | |
1376 | * @ctx is a pointer in which to place the allocated security context. | |
1377 | * @ctxlen points to the place to put the length of @ctx. | |
1da177e4 LT |
1378 | * This is the main security structure. |
1379 | */ | |
1380 | struct security_operations { | |
076c54c5 AD |
1381 | char name[SECURITY_NAME_MAX + 1]; |
1382 | ||
9e48858f | 1383 | int (*ptrace_access_check) (struct task_struct *child, unsigned int mode); |
5cd9c58f | 1384 | int (*ptrace_traceme) (struct task_struct *parent); |
7b41b173 EP |
1385 | int (*capget) (struct task_struct *target, |
1386 | kernel_cap_t *effective, | |
1387 | kernel_cap_t *inheritable, kernel_cap_t *permitted); | |
d84f4f99 DH |
1388 | int (*capset) (struct cred *new, |
1389 | const struct cred *old, | |
1390 | const kernel_cap_t *effective, | |
1391 | const kernel_cap_t *inheritable, | |
1392 | const kernel_cap_t *permitted); | |
3699c53c | 1393 | int (*capable) (struct task_struct *tsk, const struct cred *cred, |
3486740a | 1394 | struct user_namespace *ns, int cap, int audit); |
7b41b173 EP |
1395 | int (*quotactl) (int cmds, int type, int id, struct super_block *sb); |
1396 | int (*quota_on) (struct dentry *dentry); | |
12b3052c | 1397 | int (*syslog) (int type); |
1e6d7679 | 1398 | int (*settime) (const struct timespec *ts, const struct timezone *tz); |
34b4e4aa | 1399 | int (*vm_enough_memory) (struct mm_struct *mm, long pages); |
1da177e4 | 1400 | |
a6f76f23 | 1401 | int (*bprm_set_creds) (struct linux_binprm *bprm); |
7b41b173 EP |
1402 | int (*bprm_check_security) (struct linux_binprm *bprm); |
1403 | int (*bprm_secureexec) (struct linux_binprm *bprm); | |
a6f76f23 DH |
1404 | void (*bprm_committing_creds) (struct linux_binprm *bprm); |
1405 | void (*bprm_committed_creds) (struct linux_binprm *bprm); | |
7b41b173 EP |
1406 | |
1407 | int (*sb_alloc_security) (struct super_block *sb); | |
1408 | void (*sb_free_security) (struct super_block *sb); | |
1409 | int (*sb_copy_data) (char *orig, char *copy); | |
ff36fe2c | 1410 | int (*sb_remount) (struct super_block *sb, void *data); |
12204e24 | 1411 | int (*sb_kern_mount) (struct super_block *sb, int flags, void *data); |
2069f457 | 1412 | int (*sb_show_options) (struct seq_file *m, struct super_block *sb); |
726c3342 | 1413 | int (*sb_statfs) (struct dentry *dentry); |
b5266eb4 | 1414 | int (*sb_mount) (char *dev_name, struct path *path, |
1da177e4 | 1415 | char *type, unsigned long flags, void *data); |
7b41b173 | 1416 | int (*sb_umount) (struct vfsmount *mnt, int flags); |
b5266eb4 AV |
1417 | int (*sb_pivotroot) (struct path *old_path, |
1418 | struct path *new_path); | |
e0007529 EP |
1419 | int (*sb_set_mnt_opts) (struct super_block *sb, |
1420 | struct security_mnt_opts *opts); | |
c9180a57 EP |
1421 | void (*sb_clone_mnt_opts) (const struct super_block *oldsb, |
1422 | struct super_block *newsb); | |
e0007529 | 1423 | int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts); |
1da177e4 | 1424 | |
be6d3e56 KT |
1425 | #ifdef CONFIG_SECURITY_PATH |
1426 | int (*path_unlink) (struct path *dir, struct dentry *dentry); | |
1427 | int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode); | |
1428 | int (*path_rmdir) (struct path *dir, struct dentry *dentry); | |
1429 | int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode, | |
1430 | unsigned int dev); | |
ea0d3ab2 | 1431 | int (*path_truncate) (struct path *path); |
be6d3e56 KT |
1432 | int (*path_symlink) (struct path *dir, struct dentry *dentry, |
1433 | const char *old_name); | |
1434 | int (*path_link) (struct dentry *old_dentry, struct path *new_dir, | |
1435 | struct dentry *new_dentry); | |
1436 | int (*path_rename) (struct path *old_dir, struct dentry *old_dentry, | |
1437 | struct path *new_dir, struct dentry *new_dentry); | |
89eda068 TH |
1438 | int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt, |
1439 | mode_t mode); | |
1440 | int (*path_chown) (struct path *path, uid_t uid, gid_t gid); | |
8b8efb44 | 1441 | int (*path_chroot) (struct path *path); |
be6d3e56 KT |
1442 | #endif |
1443 | ||
7b41b173 | 1444 | int (*inode_alloc_security) (struct inode *inode); |
1da177e4 | 1445 | void (*inode_free_security) (struct inode *inode); |
5e41ff9e | 1446 | int (*inode_init_security) (struct inode *inode, struct inode *dir, |
2a7dba39 EP |
1447 | const struct qstr *qstr, char **name, |
1448 | void **value, size_t *len); | |
1da177e4 | 1449 | int (*inode_create) (struct inode *dir, |
7b41b173 | 1450 | struct dentry *dentry, int mode); |
1da177e4 | 1451 | int (*inode_link) (struct dentry *old_dentry, |
7b41b173 | 1452 | struct inode *dir, struct dentry *new_dentry); |
1da177e4 LT |
1453 | int (*inode_unlink) (struct inode *dir, struct dentry *dentry); |
1454 | int (*inode_symlink) (struct inode *dir, | |
7b41b173 | 1455 | struct dentry *dentry, const char *old_name); |
1da177e4 | 1456 | int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode); |
1da177e4 LT |
1457 | int (*inode_rmdir) (struct inode *dir, struct dentry *dentry); |
1458 | int (*inode_mknod) (struct inode *dir, struct dentry *dentry, | |
7b41b173 | 1459 | int mode, dev_t dev); |
1da177e4 | 1460 | int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry, |
7b41b173 | 1461 | struct inode *new_dir, struct dentry *new_dentry); |
1da177e4 LT |
1462 | int (*inode_readlink) (struct dentry *dentry); |
1463 | int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd); | |
8c9e80ed | 1464 | int (*inode_permission) (struct inode *inode, int mask, unsigned flags); |
1da177e4 LT |
1465 | int (*inode_setattr) (struct dentry *dentry, struct iattr *attr); |
1466 | int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry); | |
8f0cfa52 DH |
1467 | int (*inode_setxattr) (struct dentry *dentry, const char *name, |
1468 | const void *value, size_t size, int flags); | |
1469 | void (*inode_post_setxattr) (struct dentry *dentry, const char *name, | |
1470 | const void *value, size_t size, int flags); | |
1471 | int (*inode_getxattr) (struct dentry *dentry, const char *name); | |
1da177e4 | 1472 | int (*inode_listxattr) (struct dentry *dentry); |
8f0cfa52 | 1473 | int (*inode_removexattr) (struct dentry *dentry, const char *name); |
b5376771 SH |
1474 | int (*inode_need_killpriv) (struct dentry *dentry); |
1475 | int (*inode_killpriv) (struct dentry *dentry); | |
7b41b173 EP |
1476 | int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc); |
1477 | int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags); | |
1478 | int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size); | |
1479 | void (*inode_getsecid) (const struct inode *inode, u32 *secid); | |
1480 | ||
1481 | int (*file_permission) (struct file *file, int mask); | |
1482 | int (*file_alloc_security) (struct file *file); | |
1483 | void (*file_free_security) (struct file *file); | |
1484 | int (*file_ioctl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1485 | unsigned long arg); |
7b41b173 | 1486 | int (*file_mmap) (struct file *file, |
ed032189 EP |
1487 | unsigned long reqprot, unsigned long prot, |
1488 | unsigned long flags, unsigned long addr, | |
1489 | unsigned long addr_only); | |
7b41b173 | 1490 | int (*file_mprotect) (struct vm_area_struct *vma, |
1da177e4 LT |
1491 | unsigned long reqprot, |
1492 | unsigned long prot); | |
7b41b173 EP |
1493 | int (*file_lock) (struct file *file, unsigned int cmd); |
1494 | int (*file_fcntl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1495 | unsigned long arg); |
7b41b173 EP |
1496 | int (*file_set_fowner) (struct file *file); |
1497 | int (*file_send_sigiotask) (struct task_struct *tsk, | |
1498 | struct fown_struct *fown, int sig); | |
1499 | int (*file_receive) (struct file *file); | |
745ca247 | 1500 | int (*dentry_open) (struct file *file, const struct cred *cred); |
1da177e4 LT |
1501 | |
1502 | int (*task_create) (unsigned long clone_flags); | |
ee18d64c | 1503 | int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp); |
f1752eec | 1504 | void (*cred_free) (struct cred *cred); |
d84f4f99 DH |
1505 | int (*cred_prepare)(struct cred *new, const struct cred *old, |
1506 | gfp_t gfp); | |
ee18d64c | 1507 | void (*cred_transfer)(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1508 | int (*kernel_act_as)(struct cred *new, u32 secid); |
1509 | int (*kernel_create_files_as)(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1510 | int (*kernel_module_request)(char *kmod_name); |
d84f4f99 DH |
1511 | int (*task_fix_setuid) (struct cred *new, const struct cred *old, |
1512 | int flags); | |
7b41b173 EP |
1513 | int (*task_setpgid) (struct task_struct *p, pid_t pgid); |
1514 | int (*task_getpgid) (struct task_struct *p); | |
1515 | int (*task_getsid) (struct task_struct *p); | |
1516 | void (*task_getsecid) (struct task_struct *p, u32 *secid); | |
7b41b173 EP |
1517 | int (*task_setnice) (struct task_struct *p, int nice); |
1518 | int (*task_setioprio) (struct task_struct *p, int ioprio); | |
1519 | int (*task_getioprio) (struct task_struct *p); | |
8fd00b4d JS |
1520 | int (*task_setrlimit) (struct task_struct *p, unsigned int resource, |
1521 | struct rlimit *new_rlim); | |
b0ae1981 | 1522 | int (*task_setscheduler) (struct task_struct *p); |
7b41b173 EP |
1523 | int (*task_getscheduler) (struct task_struct *p); |
1524 | int (*task_movememory) (struct task_struct *p); | |
1525 | int (*task_kill) (struct task_struct *p, | |
1526 | struct siginfo *info, int sig, u32 secid); | |
1527 | int (*task_wait) (struct task_struct *p); | |
1da177e4 LT |
1528 | int (*task_prctl) (int option, unsigned long arg2, |
1529 | unsigned long arg3, unsigned long arg4, | |
d84f4f99 | 1530 | unsigned long arg5); |
7b41b173 | 1531 | void (*task_to_inode) (struct task_struct *p, struct inode *inode); |
1da177e4 | 1532 | |
7b41b173 | 1533 | int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag); |
8a076191 | 1534 | void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid); |
1da177e4 | 1535 | |
7b41b173 EP |
1536 | int (*msg_msg_alloc_security) (struct msg_msg *msg); |
1537 | void (*msg_msg_free_security) (struct msg_msg *msg); | |
1538 | ||
1539 | int (*msg_queue_alloc_security) (struct msg_queue *msq); | |
1540 | void (*msg_queue_free_security) (struct msg_queue *msq); | |
1541 | int (*msg_queue_associate) (struct msg_queue *msq, int msqflg); | |
1542 | int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd); | |
1543 | int (*msg_queue_msgsnd) (struct msg_queue *msq, | |
1544 | struct msg_msg *msg, int msqflg); | |
1545 | int (*msg_queue_msgrcv) (struct msg_queue *msq, | |
1546 | struct msg_msg *msg, | |
1547 | struct task_struct *target, | |
1da177e4 LT |
1548 | long type, int mode); |
1549 | ||
7b41b173 EP |
1550 | int (*shm_alloc_security) (struct shmid_kernel *shp); |
1551 | void (*shm_free_security) (struct shmid_kernel *shp); | |
1552 | int (*shm_associate) (struct shmid_kernel *shp, int shmflg); | |
1553 | int (*shm_shmctl) (struct shmid_kernel *shp, int cmd); | |
1554 | int (*shm_shmat) (struct shmid_kernel *shp, | |
1da177e4 LT |
1555 | char __user *shmaddr, int shmflg); |
1556 | ||
7b41b173 EP |
1557 | int (*sem_alloc_security) (struct sem_array *sma); |
1558 | void (*sem_free_security) (struct sem_array *sma); | |
1559 | int (*sem_associate) (struct sem_array *sma, int semflg); | |
1560 | int (*sem_semctl) (struct sem_array *sma, int cmd); | |
1561 | int (*sem_semop) (struct sem_array *sma, | |
1562 | struct sembuf *sops, unsigned nsops, int alter); | |
1da177e4 | 1563 | |
7b41b173 EP |
1564 | int (*netlink_send) (struct sock *sk, struct sk_buff *skb); |
1565 | int (*netlink_recv) (struct sk_buff *skb, int cap); | |
1da177e4 | 1566 | |
1da177e4 LT |
1567 | void (*d_instantiate) (struct dentry *dentry, struct inode *inode); |
1568 | ||
7b41b173 EP |
1569 | int (*getprocattr) (struct task_struct *p, char *name, char **value); |
1570 | int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size); | |
1571 | int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen); | |
7bf570dc | 1572 | int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid); |
7b41b173 | 1573 | void (*release_secctx) (char *secdata, u32 seclen); |
1da177e4 | 1574 | |
1ee65e37 DQ |
1575 | int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen); |
1576 | int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1577 | int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen); | |
1578 | ||
1da177e4 | 1579 | #ifdef CONFIG_SECURITY_NETWORK |
3610cda5 | 1580 | int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk); |
7b41b173 | 1581 | int (*unix_may_send) (struct socket *sock, struct socket *other); |
1da177e4 LT |
1582 | |
1583 | int (*socket_create) (int family, int type, int protocol, int kern); | |
7b41b173 | 1584 | int (*socket_post_create) (struct socket *sock, int family, |
7420ed23 | 1585 | int type, int protocol, int kern); |
7b41b173 EP |
1586 | int (*socket_bind) (struct socket *sock, |
1587 | struct sockaddr *address, int addrlen); | |
1588 | int (*socket_connect) (struct socket *sock, | |
1589 | struct sockaddr *address, int addrlen); | |
1590 | int (*socket_listen) (struct socket *sock, int backlog); | |
1591 | int (*socket_accept) (struct socket *sock, struct socket *newsock); | |
7b41b173 EP |
1592 | int (*socket_sendmsg) (struct socket *sock, |
1593 | struct msghdr *msg, int size); | |
1594 | int (*socket_recvmsg) (struct socket *sock, | |
1595 | struct msghdr *msg, int size, int flags); | |
1596 | int (*socket_getsockname) (struct socket *sock); | |
1597 | int (*socket_getpeername) (struct socket *sock); | |
1598 | int (*socket_getsockopt) (struct socket *sock, int level, int optname); | |
1599 | int (*socket_setsockopt) (struct socket *sock, int level, int optname); | |
1600 | int (*socket_shutdown) (struct socket *sock, int how); | |
1601 | int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb); | |
2c7946a7 | 1602 | int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len); |
dc49c1f9 | 1603 | int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid); |
7d877f3b | 1604 | int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority); |
1da177e4 | 1605 | void (*sk_free_security) (struct sock *sk); |
892c141e | 1606 | void (*sk_clone_security) (const struct sock *sk, struct sock *newsk); |
beb8d13b | 1607 | void (*sk_getsecid) (struct sock *sk, u32 *secid); |
7b41b173 EP |
1608 | void (*sock_graft) (struct sock *sk, struct socket *parent); |
1609 | int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb, | |
1610 | struct request_sock *req); | |
1611 | void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req); | |
1612 | void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb); | |
2606fd1f EP |
1613 | int (*secmark_relabel_packet) (u32 secid); |
1614 | void (*secmark_refcount_inc) (void); | |
1615 | void (*secmark_refcount_dec) (void); | |
7b41b173 | 1616 | void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl); |
2b980dbd PM |
1617 | int (*tun_dev_create)(void); |
1618 | void (*tun_dev_post_create)(struct sock *sk); | |
1619 | int (*tun_dev_attach)(struct sock *sk); | |
1da177e4 | 1620 | #endif /* CONFIG_SECURITY_NETWORK */ |
29db9190 | 1621 | |
df71837d | 1622 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
03e1ad7b | 1623 | int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp, |
c1a856c9 | 1624 | struct xfrm_user_sec_ctx *sec_ctx); |
03e1ad7b PM |
1625 | int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx); |
1626 | void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx); | |
1627 | int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx); | |
e0d1caa7 | 1628 | int (*xfrm_state_alloc_security) (struct xfrm_state *x, |
c1a856c9 | 1629 | struct xfrm_user_sec_ctx *sec_ctx, |
e0d1caa7 | 1630 | u32 secid); |
df71837d | 1631 | void (*xfrm_state_free_security) (struct xfrm_state *x); |
c8c05a8e | 1632 | int (*xfrm_state_delete_security) (struct xfrm_state *x); |
7b41b173 EP |
1633 | int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
1634 | int (*xfrm_state_pol_flow_match) (struct xfrm_state *x, | |
1635 | struct xfrm_policy *xp, | |
e33f7704 | 1636 | const struct flowi *fl); |
7b41b173 | 1637 | int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall); |
df71837d TJ |
1638 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
1639 | ||
29db9190 DH |
1640 | /* key management security hooks */ |
1641 | #ifdef CONFIG_KEYS | |
d84f4f99 | 1642 | int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags); |
7b41b173 EP |
1643 | void (*key_free) (struct key *key); |
1644 | int (*key_permission) (key_ref_t key_ref, | |
d84f4f99 | 1645 | const struct cred *cred, |
7b41b173 | 1646 | key_perm_t perm); |
70a5bb72 | 1647 | int (*key_getsecurity)(struct key *key, char **_buffer); |
29db9190 DH |
1648 | #endif /* CONFIG_KEYS */ |
1649 | ||
03d37d25 | 1650 | #ifdef CONFIG_AUDIT |
7b41b173 EP |
1651 | int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule); |
1652 | int (*audit_rule_known) (struct audit_krule *krule); | |
1653 | int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule, | |
1654 | struct audit_context *actx); | |
1655 | void (*audit_rule_free) (void *lsmrule); | |
03d37d25 | 1656 | #endif /* CONFIG_AUDIT */ |
1da177e4 LT |
1657 | }; |
1658 | ||
1da177e4 | 1659 | /* prototypes */ |
7b41b173 | 1660 | extern int security_init(void); |
076c54c5 | 1661 | extern int security_module_enable(struct security_operations *ops); |
7b41b173 | 1662 | extern int register_security(struct security_operations *ops); |
1da177e4 | 1663 | |
20510f2f | 1664 | /* Security operations */ |
9e48858f | 1665 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 1666 | int security_ptrace_traceme(struct task_struct *parent); |
20510f2f | 1667 | int security_capget(struct task_struct *target, |
7b41b173 EP |
1668 | kernel_cap_t *effective, |
1669 | kernel_cap_t *inheritable, | |
1670 | kernel_cap_t *permitted); | |
d84f4f99 DH |
1671 | int security_capset(struct cred *new, const struct cred *old, |
1672 | const kernel_cap_t *effective, | |
1673 | const kernel_cap_t *inheritable, | |
1674 | const kernel_cap_t *permitted); | |
3486740a SH |
1675 | int security_capable(struct user_namespace *ns, const struct cred *cred, |
1676 | int cap); | |
1677 | int security_real_capable(struct task_struct *tsk, struct user_namespace *ns, | |
1678 | int cap); | |
1679 | int security_real_capable_noaudit(struct task_struct *tsk, | |
1680 | struct user_namespace *ns, int cap); | |
20510f2f JM |
1681 | int security_quotactl(int cmds, int type, int id, struct super_block *sb); |
1682 | int security_quota_on(struct dentry *dentry); | |
12b3052c | 1683 | int security_syslog(int type); |
1e6d7679 | 1684 | int security_settime(const struct timespec *ts, const struct timezone *tz); |
20510f2f JM |
1685 | int security_vm_enough_memory(long pages); |
1686 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); | |
731572d3 | 1687 | int security_vm_enough_memory_kern(long pages); |
a6f76f23 | 1688 | int security_bprm_set_creds(struct linux_binprm *bprm); |
20510f2f | 1689 | int security_bprm_check(struct linux_binprm *bprm); |
a6f76f23 DH |
1690 | void security_bprm_committing_creds(struct linux_binprm *bprm); |
1691 | void security_bprm_committed_creds(struct linux_binprm *bprm); | |
20510f2f JM |
1692 | int security_bprm_secureexec(struct linux_binprm *bprm); |
1693 | int security_sb_alloc(struct super_block *sb); | |
1694 | void security_sb_free(struct super_block *sb); | |
e0007529 | 1695 | int security_sb_copy_data(char *orig, char *copy); |
ff36fe2c | 1696 | int security_sb_remount(struct super_block *sb, void *data); |
12204e24 | 1697 | int security_sb_kern_mount(struct super_block *sb, int flags, void *data); |
2069f457 | 1698 | int security_sb_show_options(struct seq_file *m, struct super_block *sb); |
20510f2f | 1699 | int security_sb_statfs(struct dentry *dentry); |
b5266eb4 | 1700 | int security_sb_mount(char *dev_name, struct path *path, |
7b41b173 | 1701 | char *type, unsigned long flags, void *data); |
20510f2f | 1702 | int security_sb_umount(struct vfsmount *mnt, int flags); |
b5266eb4 | 1703 | int security_sb_pivotroot(struct path *old_path, struct path *new_path); |
e0007529 | 1704 | int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts); |
c9180a57 EP |
1705 | void security_sb_clone_mnt_opts(const struct super_block *oldsb, |
1706 | struct super_block *newsb); | |
e0007529 | 1707 | int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts); |
c9180a57 | 1708 | |
20510f2f JM |
1709 | int security_inode_alloc(struct inode *inode); |
1710 | void security_inode_free(struct inode *inode); | |
1711 | int security_inode_init_security(struct inode *inode, struct inode *dir, | |
9d8f13ba MZ |
1712 | const struct qstr *qstr, |
1713 | initxattrs initxattrs, void *fs_data); | |
1714 | int security_old_inode_init_security(struct inode *inode, struct inode *dir, | |
1715 | const struct qstr *qstr, char **name, | |
1716 | void **value, size_t *len); | |
20510f2f JM |
1717 | int security_inode_create(struct inode *dir, struct dentry *dentry, int mode); |
1718 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, | |
1719 | struct dentry *new_dentry); | |
1720 | int security_inode_unlink(struct inode *dir, struct dentry *dentry); | |
1721 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
7b41b173 | 1722 | const char *old_name); |
20510f2f JM |
1723 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode); |
1724 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry); | |
1725 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev); | |
1726 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, | |
7b41b173 | 1727 | struct inode *new_dir, struct dentry *new_dentry); |
20510f2f JM |
1728 | int security_inode_readlink(struct dentry *dentry); |
1729 | int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd); | |
b77b0646 | 1730 | int security_inode_permission(struct inode *inode, int mask); |
31e6b01f | 1731 | int security_inode_exec_permission(struct inode *inode, unsigned int flags); |
20510f2f JM |
1732 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr); |
1733 | int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry); | |
8f0cfa52 DH |
1734 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
1735 | const void *value, size_t size, int flags); | |
1736 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, | |
1737 | const void *value, size_t size, int flags); | |
1738 | int security_inode_getxattr(struct dentry *dentry, const char *name); | |
20510f2f | 1739 | int security_inode_listxattr(struct dentry *dentry); |
8f0cfa52 | 1740 | int security_inode_removexattr(struct dentry *dentry, const char *name); |
b5376771 SH |
1741 | int security_inode_need_killpriv(struct dentry *dentry); |
1742 | int security_inode_killpriv(struct dentry *dentry); | |
42492594 | 1743 | int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc); |
20510f2f JM |
1744 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); |
1745 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); | |
8a076191 | 1746 | void security_inode_getsecid(const struct inode *inode, u32 *secid); |
20510f2f JM |
1747 | int security_file_permission(struct file *file, int mask); |
1748 | int security_file_alloc(struct file *file); | |
1749 | void security_file_free(struct file *file); | |
1750 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); | |
1751 | int security_file_mmap(struct file *file, unsigned long reqprot, | |
1752 | unsigned long prot, unsigned long flags, | |
1753 | unsigned long addr, unsigned long addr_only); | |
1754 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, | |
7b41b173 | 1755 | unsigned long prot); |
20510f2f JM |
1756 | int security_file_lock(struct file *file, unsigned int cmd); |
1757 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); | |
1758 | int security_file_set_fowner(struct file *file); | |
1759 | int security_file_send_sigiotask(struct task_struct *tsk, | |
7b41b173 | 1760 | struct fown_struct *fown, int sig); |
20510f2f | 1761 | int security_file_receive(struct file *file); |
745ca247 | 1762 | int security_dentry_open(struct file *file, const struct cred *cred); |
20510f2f | 1763 | int security_task_create(unsigned long clone_flags); |
ee18d64c | 1764 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); |
f1752eec | 1765 | void security_cred_free(struct cred *cred); |
d84f4f99 | 1766 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); |
ee18d64c | 1767 | void security_transfer_creds(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1768 | int security_kernel_act_as(struct cred *new, u32 secid); |
1769 | int security_kernel_create_files_as(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1770 | int security_kernel_module_request(char *kmod_name); |
d84f4f99 DH |
1771 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1772 | int flags); | |
20510f2f JM |
1773 | int security_task_setpgid(struct task_struct *p, pid_t pgid); |
1774 | int security_task_getpgid(struct task_struct *p); | |
1775 | int security_task_getsid(struct task_struct *p); | |
1776 | void security_task_getsecid(struct task_struct *p, u32 *secid); | |
20510f2f JM |
1777 | int security_task_setnice(struct task_struct *p, int nice); |
1778 | int security_task_setioprio(struct task_struct *p, int ioprio); | |
1779 | int security_task_getioprio(struct task_struct *p); | |
8fd00b4d JS |
1780 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
1781 | struct rlimit *new_rlim); | |
b0ae1981 | 1782 | int security_task_setscheduler(struct task_struct *p); |
20510f2f JM |
1783 | int security_task_getscheduler(struct task_struct *p); |
1784 | int security_task_movememory(struct task_struct *p); | |
1785 | int security_task_kill(struct task_struct *p, struct siginfo *info, | |
1786 | int sig, u32 secid); | |
1787 | int security_task_wait(struct task_struct *p); | |
1788 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, | |
d84f4f99 | 1789 | unsigned long arg4, unsigned long arg5); |
20510f2f JM |
1790 | void security_task_to_inode(struct task_struct *p, struct inode *inode); |
1791 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); | |
8a076191 | 1792 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid); |
20510f2f JM |
1793 | int security_msg_msg_alloc(struct msg_msg *msg); |
1794 | void security_msg_msg_free(struct msg_msg *msg); | |
1795 | int security_msg_queue_alloc(struct msg_queue *msq); | |
1796 | void security_msg_queue_free(struct msg_queue *msq); | |
1797 | int security_msg_queue_associate(struct msg_queue *msq, int msqflg); | |
1798 | int security_msg_queue_msgctl(struct msg_queue *msq, int cmd); | |
1799 | int security_msg_queue_msgsnd(struct msg_queue *msq, | |
7b41b173 | 1800 | struct msg_msg *msg, int msqflg); |
20510f2f | 1801 | int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, |
7b41b173 | 1802 | struct task_struct *target, long type, int mode); |
20510f2f JM |
1803 | int security_shm_alloc(struct shmid_kernel *shp); |
1804 | void security_shm_free(struct shmid_kernel *shp); | |
1805 | int security_shm_associate(struct shmid_kernel *shp, int shmflg); | |
1806 | int security_shm_shmctl(struct shmid_kernel *shp, int cmd); | |
1807 | int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg); | |
1808 | int security_sem_alloc(struct sem_array *sma); | |
1809 | void security_sem_free(struct sem_array *sma); | |
1810 | int security_sem_associate(struct sem_array *sma, int semflg); | |
1811 | int security_sem_semctl(struct sem_array *sma, int cmd); | |
1812 | int security_sem_semop(struct sem_array *sma, struct sembuf *sops, | |
1813 | unsigned nsops, int alter); | |
7b41b173 | 1814 | void security_d_instantiate(struct dentry *dentry, struct inode *inode); |
20510f2f JM |
1815 | int security_getprocattr(struct task_struct *p, char *name, char **value); |
1816 | int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size); | |
1817 | int security_netlink_send(struct sock *sk, struct sk_buff *skb); | |
1818 | int security_netlink_recv(struct sk_buff *skb, int cap); | |
1819 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); | |
7bf570dc | 1820 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); |
20510f2f JM |
1821 | void security_release_secctx(char *secdata, u32 seclen); |
1822 | ||
1ee65e37 DQ |
1823 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); |
1824 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1825 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); | |
1da177e4 | 1826 | #else /* CONFIG_SECURITY */ |
e0007529 EP |
1827 | struct security_mnt_opts { |
1828 | }; | |
1829 | ||
1830 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
1831 | { | |
1832 | } | |
1833 | ||
1834 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
1835 | { | |
1836 | } | |
1da177e4 LT |
1837 | |
1838 | /* | |
1839 | * This is the default capabilities functionality. Most of these functions | |
1840 | * are just stubbed out, but a few must call the proper capable code. | |
1841 | */ | |
1842 | ||
1843 | static inline int security_init(void) | |
1844 | { | |
1845 | return 0; | |
1846 | } | |
1847 | ||
9e48858f | 1848 | static inline int security_ptrace_access_check(struct task_struct *child, |
5cd9c58f DH |
1849 | unsigned int mode) |
1850 | { | |
9e48858f | 1851 | return cap_ptrace_access_check(child, mode); |
5cd9c58f DH |
1852 | } |
1853 | ||
5e186b57 | 1854 | static inline int security_ptrace_traceme(struct task_struct *parent) |
1da177e4 | 1855 | { |
5cd9c58f | 1856 | return cap_ptrace_traceme(parent); |
1da177e4 LT |
1857 | } |
1858 | ||
7b41b173 | 1859 | static inline int security_capget(struct task_struct *target, |
1da177e4 LT |
1860 | kernel_cap_t *effective, |
1861 | kernel_cap_t *inheritable, | |
1862 | kernel_cap_t *permitted) | |
1863 | { | |
7b41b173 | 1864 | return cap_capget(target, effective, inheritable, permitted); |
1da177e4 LT |
1865 | } |
1866 | ||
d84f4f99 DH |
1867 | static inline int security_capset(struct cred *new, |
1868 | const struct cred *old, | |
1869 | const kernel_cap_t *effective, | |
1870 | const kernel_cap_t *inheritable, | |
1871 | const kernel_cap_t *permitted) | |
1da177e4 | 1872 | { |
d84f4f99 | 1873 | return cap_capset(new, old, effective, inheritable, permitted); |
1da177e4 LT |
1874 | } |
1875 | ||
3486740a SH |
1876 | static inline int security_capable(struct user_namespace *ns, |
1877 | const struct cred *cred, int cap) | |
12b5989b | 1878 | { |
3486740a | 1879 | return cap_capable(current, cred, ns, cap, SECURITY_CAP_AUDIT); |
06112163 EP |
1880 | } |
1881 | ||
3486740a | 1882 | static inline int security_real_capable(struct task_struct *tsk, struct user_namespace *ns, int cap) |
06112163 | 1883 | { |
3699c53c DH |
1884 | int ret; |
1885 | ||
1886 | rcu_read_lock(); | |
3486740a | 1887 | ret = cap_capable(tsk, __task_cred(tsk), ns, cap, SECURITY_CAP_AUDIT); |
3699c53c DH |
1888 | rcu_read_unlock(); |
1889 | return ret; | |
1890 | } | |
1891 | ||
1892 | static inline | |
3486740a | 1893 | int security_real_capable_noaudit(struct task_struct *tsk, struct user_namespace *ns, int cap) |
3699c53c DH |
1894 | { |
1895 | int ret; | |
1896 | ||
1897 | rcu_read_lock(); | |
3486740a | 1898 | ret = cap_capable(tsk, __task_cred(tsk), ns, cap, |
3699c53c DH |
1899 | SECURITY_CAP_NOAUDIT); |
1900 | rcu_read_unlock(); | |
1901 | return ret; | |
12b5989b CW |
1902 | } |
1903 | ||
7b41b173 EP |
1904 | static inline int security_quotactl(int cmds, int type, int id, |
1905 | struct super_block *sb) | |
1da177e4 LT |
1906 | { |
1907 | return 0; | |
1908 | } | |
1909 | ||
7b41b173 | 1910 | static inline int security_quota_on(struct dentry *dentry) |
1da177e4 LT |
1911 | { |
1912 | return 0; | |
1913 | } | |
1914 | ||
12b3052c | 1915 | static inline int security_syslog(int type) |
1da177e4 | 1916 | { |
12b3052c | 1917 | return 0; |
1da177e4 LT |
1918 | } |
1919 | ||
1e6d7679 RC |
1920 | static inline int security_settime(const struct timespec *ts, |
1921 | const struct timezone *tz) | |
1da177e4 LT |
1922 | { |
1923 | return cap_settime(ts, tz); | |
1924 | } | |
1925 | ||
1926 | static inline int security_vm_enough_memory(long pages) | |
1927 | { | |
1b79cd04 | 1928 | WARN_ON(current->mm == NULL); |
34b4e4aa AC |
1929 | return cap_vm_enough_memory(current->mm, pages); |
1930 | } | |
1931 | ||
1b79cd04 | 1932 | static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
731572d3 | 1933 | { |
1b79cd04 JO |
1934 | WARN_ON(mm == NULL); |
1935 | return cap_vm_enough_memory(mm, pages); | |
731572d3 AC |
1936 | } |
1937 | ||
1b79cd04 | 1938 | static inline int security_vm_enough_memory_kern(long pages) |
34b4e4aa | 1939 | { |
1b79cd04 JO |
1940 | /* If current->mm is a kernel thread then we will pass NULL, |
1941 | for this specific case that is fine */ | |
1942 | return cap_vm_enough_memory(current->mm, pages); | |
1da177e4 LT |
1943 | } |
1944 | ||
a6f76f23 | 1945 | static inline int security_bprm_set_creds(struct linux_binprm *bprm) |
7b41b173 | 1946 | { |
a6f76f23 | 1947 | return cap_bprm_set_creds(bprm); |
1da177e4 LT |
1948 | } |
1949 | ||
a6f76f23 | 1950 | static inline int security_bprm_check(struct linux_binprm *bprm) |
1da177e4 | 1951 | { |
a6f76f23 | 1952 | return 0; |
1da177e4 LT |
1953 | } |
1954 | ||
a6f76f23 | 1955 | static inline void security_bprm_committing_creds(struct linux_binprm *bprm) |
1da177e4 | 1956 | { |
1da177e4 LT |
1957 | } |
1958 | ||
a6f76f23 | 1959 | static inline void security_bprm_committed_creds(struct linux_binprm *bprm) |
1da177e4 | 1960 | { |
1da177e4 LT |
1961 | } |
1962 | ||
7b41b173 | 1963 | static inline int security_bprm_secureexec(struct linux_binprm *bprm) |
1da177e4 LT |
1964 | { |
1965 | return cap_bprm_secureexec(bprm); | |
1966 | } | |
1967 | ||
7b41b173 | 1968 | static inline int security_sb_alloc(struct super_block *sb) |
1da177e4 LT |
1969 | { |
1970 | return 0; | |
1971 | } | |
1972 | ||
7b41b173 | 1973 | static inline void security_sb_free(struct super_block *sb) |
1da177e4 LT |
1974 | { } |
1975 | ||
7b41b173 | 1976 | static inline int security_sb_copy_data(char *orig, char *copy) |
1da177e4 LT |
1977 | { |
1978 | return 0; | |
1979 | } | |
1980 | ||
ff36fe2c EP |
1981 | static inline int security_sb_remount(struct super_block *sb, void *data) |
1982 | { | |
1983 | return 0; | |
1984 | } | |
1985 | ||
12204e24 | 1986 | static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data) |
1da177e4 LT |
1987 | { |
1988 | return 0; | |
1989 | } | |
1990 | ||
2069f457 EP |
1991 | static inline int security_sb_show_options(struct seq_file *m, |
1992 | struct super_block *sb) | |
1993 | { | |
1994 | return 0; | |
1995 | } | |
1996 | ||
7b41b173 | 1997 | static inline int security_sb_statfs(struct dentry *dentry) |
1da177e4 LT |
1998 | { |
1999 | return 0; | |
2000 | } | |
2001 | ||
7b41b173 | 2002 | static inline int security_sb_mount(char *dev_name, struct path *path, |
1da177e4 LT |
2003 | char *type, unsigned long flags, |
2004 | void *data) | |
2005 | { | |
2006 | return 0; | |
2007 | } | |
2008 | ||
7b41b173 | 2009 | static inline int security_sb_umount(struct vfsmount *mnt, int flags) |
1da177e4 LT |
2010 | { |
2011 | return 0; | |
2012 | } | |
2013 | ||
7b41b173 EP |
2014 | static inline int security_sb_pivotroot(struct path *old_path, |
2015 | struct path *new_path) | |
1da177e4 LT |
2016 | { |
2017 | return 0; | |
2018 | } | |
2019 | ||
e0007529 EP |
2020 | static inline int security_sb_set_mnt_opts(struct super_block *sb, |
2021 | struct security_mnt_opts *opts) | |
2022 | { | |
2023 | return 0; | |
2024 | } | |
2025 | ||
2026 | static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb, | |
2027 | struct super_block *newsb) | |
2028 | { } | |
2029 | ||
2030 | static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) | |
2031 | { | |
2032 | return 0; | |
2033 | } | |
1da177e4 | 2034 | |
7b41b173 | 2035 | static inline int security_inode_alloc(struct inode *inode) |
1da177e4 LT |
2036 | { |
2037 | return 0; | |
2038 | } | |
2039 | ||
7b41b173 | 2040 | static inline void security_inode_free(struct inode *inode) |
1da177e4 | 2041 | { } |
5e41ff9e | 2042 | |
7b41b173 | 2043 | static inline int security_inode_init_security(struct inode *inode, |
5e41ff9e | 2044 | struct inode *dir, |
2a7dba39 | 2045 | const struct qstr *qstr, |
9d8f13ba MZ |
2046 | initxattrs initxattrs, |
2047 | void *fs_data) | |
5e41ff9e SS |
2048 | { |
2049 | return -EOPNOTSUPP; | |
2050 | } | |
7b41b173 EP |
2051 | |
2052 | static inline int security_inode_create(struct inode *dir, | |
1da177e4 LT |
2053 | struct dentry *dentry, |
2054 | int mode) | |
2055 | { | |
2056 | return 0; | |
2057 | } | |
2058 | ||
7b41b173 | 2059 | static inline int security_inode_link(struct dentry *old_dentry, |
1da177e4 LT |
2060 | struct inode *dir, |
2061 | struct dentry *new_dentry) | |
2062 | { | |
2063 | return 0; | |
2064 | } | |
2065 | ||
7b41b173 | 2066 | static inline int security_inode_unlink(struct inode *dir, |
1da177e4 LT |
2067 | struct dentry *dentry) |
2068 | { | |
2069 | return 0; | |
2070 | } | |
2071 | ||
7b41b173 | 2072 | static inline int security_inode_symlink(struct inode *dir, |
1da177e4 LT |
2073 | struct dentry *dentry, |
2074 | const char *old_name) | |
2075 | { | |
2076 | return 0; | |
2077 | } | |
2078 | ||
7b41b173 | 2079 | static inline int security_inode_mkdir(struct inode *dir, |
1da177e4 LT |
2080 | struct dentry *dentry, |
2081 | int mode) | |
2082 | { | |
2083 | return 0; | |
2084 | } | |
2085 | ||
7b41b173 | 2086 | static inline int security_inode_rmdir(struct inode *dir, |
1da177e4 LT |
2087 | struct dentry *dentry) |
2088 | { | |
2089 | return 0; | |
2090 | } | |
2091 | ||
7b41b173 | 2092 | static inline int security_inode_mknod(struct inode *dir, |
1da177e4 LT |
2093 | struct dentry *dentry, |
2094 | int mode, dev_t dev) | |
2095 | { | |
2096 | return 0; | |
2097 | } | |
2098 | ||
7b41b173 | 2099 | static inline int security_inode_rename(struct inode *old_dir, |
1da177e4 LT |
2100 | struct dentry *old_dentry, |
2101 | struct inode *new_dir, | |
2102 | struct dentry *new_dentry) | |
2103 | { | |
2104 | return 0; | |
2105 | } | |
2106 | ||
7b41b173 | 2107 | static inline int security_inode_readlink(struct dentry *dentry) |
1da177e4 LT |
2108 | { |
2109 | return 0; | |
2110 | } | |
2111 | ||
7b41b173 | 2112 | static inline int security_inode_follow_link(struct dentry *dentry, |
1da177e4 LT |
2113 | struct nameidata *nd) |
2114 | { | |
2115 | return 0; | |
2116 | } | |
2117 | ||
b77b0646 | 2118 | static inline int security_inode_permission(struct inode *inode, int mask) |
1da177e4 LT |
2119 | { |
2120 | return 0; | |
2121 | } | |
2122 | ||
31e6b01f NP |
2123 | static inline int security_inode_exec_permission(struct inode *inode, |
2124 | unsigned int flags) | |
2125 | { | |
2126 | return 0; | |
2127 | } | |
2128 | ||
7b41b173 | 2129 | static inline int security_inode_setattr(struct dentry *dentry, |
1da177e4 LT |
2130 | struct iattr *attr) |
2131 | { | |
2132 | return 0; | |
2133 | } | |
2134 | ||
7b41b173 | 2135 | static inline int security_inode_getattr(struct vfsmount *mnt, |
1da177e4 LT |
2136 | struct dentry *dentry) |
2137 | { | |
2138 | return 0; | |
2139 | } | |
2140 | ||
8f0cfa52 DH |
2141 | static inline int security_inode_setxattr(struct dentry *dentry, |
2142 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2143 | { |
2144 | return cap_inode_setxattr(dentry, name, value, size, flags); | |
2145 | } | |
2146 | ||
8f0cfa52 DH |
2147 | static inline void security_inode_post_setxattr(struct dentry *dentry, |
2148 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2149 | { } |
2150 | ||
8f0cfa52 DH |
2151 | static inline int security_inode_getxattr(struct dentry *dentry, |
2152 | const char *name) | |
1da177e4 LT |
2153 | { |
2154 | return 0; | |
2155 | } | |
2156 | ||
7b41b173 | 2157 | static inline int security_inode_listxattr(struct dentry *dentry) |
1da177e4 LT |
2158 | { |
2159 | return 0; | |
2160 | } | |
2161 | ||
8f0cfa52 DH |
2162 | static inline int security_inode_removexattr(struct dentry *dentry, |
2163 | const char *name) | |
1da177e4 LT |
2164 | { |
2165 | return cap_inode_removexattr(dentry, name); | |
2166 | } | |
2167 | ||
b5376771 SH |
2168 | static inline int security_inode_need_killpriv(struct dentry *dentry) |
2169 | { | |
2170 | return cap_inode_need_killpriv(dentry); | |
2171 | } | |
2172 | ||
2173 | static inline int security_inode_killpriv(struct dentry *dentry) | |
2174 | { | |
2175 | return cap_inode_killpriv(dentry); | |
2176 | } | |
2177 | ||
42492594 | 2178 | static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) |
1da177e4 LT |
2179 | { |
2180 | return -EOPNOTSUPP; | |
2181 | } | |
2182 | ||
2183 | static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
2184 | { | |
2185 | return -EOPNOTSUPP; | |
2186 | } | |
2187 | ||
2188 | static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
2189 | { | |
2190 | return 0; | |
2191 | } | |
2192 | ||
8a076191 AD |
2193 | static inline void security_inode_getsecid(const struct inode *inode, u32 *secid) |
2194 | { | |
2195 | *secid = 0; | |
2196 | } | |
2197 | ||
7b41b173 | 2198 | static inline int security_file_permission(struct file *file, int mask) |
1da177e4 LT |
2199 | { |
2200 | return 0; | |
2201 | } | |
2202 | ||
7b41b173 | 2203 | static inline int security_file_alloc(struct file *file) |
1da177e4 LT |
2204 | { |
2205 | return 0; | |
2206 | } | |
2207 | ||
7b41b173 | 2208 | static inline void security_file_free(struct file *file) |
1da177e4 LT |
2209 | { } |
2210 | ||
7b41b173 EP |
2211 | static inline int security_file_ioctl(struct file *file, unsigned int cmd, |
2212 | unsigned long arg) | |
1da177e4 LT |
2213 | { |
2214 | return 0; | |
2215 | } | |
2216 | ||
7b41b173 EP |
2217 | static inline int security_file_mmap(struct file *file, unsigned long reqprot, |
2218 | unsigned long prot, | |
2219 | unsigned long flags, | |
2220 | unsigned long addr, | |
2221 | unsigned long addr_only) | |
1da177e4 | 2222 | { |
7c73875e | 2223 | return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only); |
1da177e4 LT |
2224 | } |
2225 | ||
7b41b173 EP |
2226 | static inline int security_file_mprotect(struct vm_area_struct *vma, |
2227 | unsigned long reqprot, | |
2228 | unsigned long prot) | |
1da177e4 LT |
2229 | { |
2230 | return 0; | |
2231 | } | |
2232 | ||
7b41b173 | 2233 | static inline int security_file_lock(struct file *file, unsigned int cmd) |
1da177e4 LT |
2234 | { |
2235 | return 0; | |
2236 | } | |
2237 | ||
7b41b173 EP |
2238 | static inline int security_file_fcntl(struct file *file, unsigned int cmd, |
2239 | unsigned long arg) | |
1da177e4 LT |
2240 | { |
2241 | return 0; | |
2242 | } | |
2243 | ||
7b41b173 | 2244 | static inline int security_file_set_fowner(struct file *file) |
1da177e4 LT |
2245 | { |
2246 | return 0; | |
2247 | } | |
2248 | ||
7b41b173 EP |
2249 | static inline int security_file_send_sigiotask(struct task_struct *tsk, |
2250 | struct fown_struct *fown, | |
2251 | int sig) | |
1da177e4 LT |
2252 | { |
2253 | return 0; | |
2254 | } | |
2255 | ||
7b41b173 | 2256 | static inline int security_file_receive(struct file *file) |
1da177e4 LT |
2257 | { |
2258 | return 0; | |
2259 | } | |
2260 | ||
745ca247 DH |
2261 | static inline int security_dentry_open(struct file *file, |
2262 | const struct cred *cred) | |
788e7dd4 YN |
2263 | { |
2264 | return 0; | |
2265 | } | |
2266 | ||
7b41b173 | 2267 | static inline int security_task_create(unsigned long clone_flags) |
1da177e4 LT |
2268 | { |
2269 | return 0; | |
2270 | } | |
2271 | ||
945af7c3 DH |
2272 | static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
2273 | { | |
2274 | return 0; | |
2275 | } | |
ee18d64c | 2276 | |
d84f4f99 DH |
2277 | static inline void security_cred_free(struct cred *cred) |
2278 | { } | |
2279 | ||
2280 | static inline int security_prepare_creds(struct cred *new, | |
2281 | const struct cred *old, | |
2282 | gfp_t gfp) | |
1da177e4 LT |
2283 | { |
2284 | return 0; | |
2285 | } | |
2286 | ||
ee18d64c DH |
2287 | static inline void security_transfer_creds(struct cred *new, |
2288 | const struct cred *old) | |
2289 | { | |
2290 | } | |
2291 | ||
3a3b7ce9 DH |
2292 | static inline int security_kernel_act_as(struct cred *cred, u32 secid) |
2293 | { | |
2294 | return 0; | |
2295 | } | |
2296 | ||
2297 | static inline int security_kernel_create_files_as(struct cred *cred, | |
2298 | struct inode *inode) | |
2299 | { | |
2300 | return 0; | |
2301 | } | |
2302 | ||
dd8dbf2e | 2303 | static inline int security_kernel_module_request(char *kmod_name) |
9188499c EP |
2304 | { |
2305 | return 0; | |
1da177e4 LT |
2306 | } |
2307 | ||
d84f4f99 DH |
2308 | static inline int security_task_fix_setuid(struct cred *new, |
2309 | const struct cred *old, | |
2310 | int flags) | |
1da177e4 | 2311 | { |
d84f4f99 | 2312 | return cap_task_fix_setuid(new, old, flags); |
1da177e4 LT |
2313 | } |
2314 | ||
7b41b173 | 2315 | static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1da177e4 LT |
2316 | { |
2317 | return 0; | |
2318 | } | |
2319 | ||
7b41b173 | 2320 | static inline int security_task_getpgid(struct task_struct *p) |
1da177e4 LT |
2321 | { |
2322 | return 0; | |
2323 | } | |
2324 | ||
7b41b173 | 2325 | static inline int security_task_getsid(struct task_struct *p) |
1da177e4 LT |
2326 | { |
2327 | return 0; | |
2328 | } | |
2329 | ||
7b41b173 | 2330 | static inline void security_task_getsecid(struct task_struct *p, u32 *secid) |
8a076191 AD |
2331 | { |
2332 | *secid = 0; | |
2333 | } | |
f9008e4c | 2334 | |
7b41b173 | 2335 | static inline int security_task_setnice(struct task_struct *p, int nice) |
1da177e4 | 2336 | { |
b5376771 | 2337 | return cap_task_setnice(p, nice); |
1da177e4 LT |
2338 | } |
2339 | ||
7b41b173 | 2340 | static inline int security_task_setioprio(struct task_struct *p, int ioprio) |
03e68060 | 2341 | { |
b5376771 | 2342 | return cap_task_setioprio(p, ioprio); |
03e68060 JM |
2343 | } |
2344 | ||
7b41b173 | 2345 | static inline int security_task_getioprio(struct task_struct *p) |
a1836a42 DQ |
2346 | { |
2347 | return 0; | |
2348 | } | |
2349 | ||
8fd00b4d JS |
2350 | static inline int security_task_setrlimit(struct task_struct *p, |
2351 | unsigned int resource, | |
7b41b173 | 2352 | struct rlimit *new_rlim) |
1da177e4 LT |
2353 | { |
2354 | return 0; | |
2355 | } | |
2356 | ||
b0ae1981 | 2357 | static inline int security_task_setscheduler(struct task_struct *p) |
1da177e4 | 2358 | { |
b0ae1981 | 2359 | return cap_task_setscheduler(p); |
1da177e4 LT |
2360 | } |
2361 | ||
7b41b173 | 2362 | static inline int security_task_getscheduler(struct task_struct *p) |
1da177e4 LT |
2363 | { |
2364 | return 0; | |
2365 | } | |
2366 | ||
7b41b173 | 2367 | static inline int security_task_movememory(struct task_struct *p) |
35601547 DQ |
2368 | { |
2369 | return 0; | |
2370 | } | |
2371 | ||
7b41b173 EP |
2372 | static inline int security_task_kill(struct task_struct *p, |
2373 | struct siginfo *info, int sig, | |
2374 | u32 secid) | |
1da177e4 | 2375 | { |
aedb60a6 | 2376 | return 0; |
1da177e4 LT |
2377 | } |
2378 | ||
7b41b173 | 2379 | static inline int security_task_wait(struct task_struct *p) |
1da177e4 LT |
2380 | { |
2381 | return 0; | |
2382 | } | |
2383 | ||
7b41b173 EP |
2384 | static inline int security_task_prctl(int option, unsigned long arg2, |
2385 | unsigned long arg3, | |
2386 | unsigned long arg4, | |
d84f4f99 | 2387 | unsigned long arg5) |
1da177e4 | 2388 | { |
d84f4f99 | 2389 | return cap_task_prctl(option, arg2, arg3, arg3, arg5); |
1da177e4 LT |
2390 | } |
2391 | ||
2392 | static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
2393 | { } | |
2394 | ||
7b41b173 EP |
2395 | static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, |
2396 | short flag) | |
1da177e4 LT |
2397 | { |
2398 | return 0; | |
2399 | } | |
2400 | ||
8a076191 AD |
2401 | static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
2402 | { | |
2403 | *secid = 0; | |
2404 | } | |
2405 | ||
7b41b173 | 2406 | static inline int security_msg_msg_alloc(struct msg_msg *msg) |
1da177e4 LT |
2407 | { |
2408 | return 0; | |
2409 | } | |
2410 | ||
7b41b173 | 2411 | static inline void security_msg_msg_free(struct msg_msg *msg) |
1da177e4 LT |
2412 | { } |
2413 | ||
7b41b173 | 2414 | static inline int security_msg_queue_alloc(struct msg_queue *msq) |
1da177e4 LT |
2415 | { |
2416 | return 0; | |
2417 | } | |
2418 | ||
7b41b173 | 2419 | static inline void security_msg_queue_free(struct msg_queue *msq) |
1da177e4 LT |
2420 | { } |
2421 | ||
7b41b173 EP |
2422 | static inline int security_msg_queue_associate(struct msg_queue *msq, |
2423 | int msqflg) | |
1da177e4 LT |
2424 | { |
2425 | return 0; | |
2426 | } | |
2427 | ||
7b41b173 | 2428 | static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) |
1da177e4 LT |
2429 | { |
2430 | return 0; | |
2431 | } | |
2432 | ||
7b41b173 EP |
2433 | static inline int security_msg_queue_msgsnd(struct msg_queue *msq, |
2434 | struct msg_msg *msg, int msqflg) | |
1da177e4 LT |
2435 | { |
2436 | return 0; | |
2437 | } | |
2438 | ||
7b41b173 EP |
2439 | static inline int security_msg_queue_msgrcv(struct msg_queue *msq, |
2440 | struct msg_msg *msg, | |
2441 | struct task_struct *target, | |
2442 | long type, int mode) | |
1da177e4 LT |
2443 | { |
2444 | return 0; | |
2445 | } | |
2446 | ||
7b41b173 | 2447 | static inline int security_shm_alloc(struct shmid_kernel *shp) |
1da177e4 LT |
2448 | { |
2449 | return 0; | |
2450 | } | |
2451 | ||
7b41b173 | 2452 | static inline void security_shm_free(struct shmid_kernel *shp) |
1da177e4 LT |
2453 | { } |
2454 | ||
7b41b173 EP |
2455 | static inline int security_shm_associate(struct shmid_kernel *shp, |
2456 | int shmflg) | |
1da177e4 LT |
2457 | { |
2458 | return 0; | |
2459 | } | |
2460 | ||
7b41b173 | 2461 | static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd) |
1da177e4 LT |
2462 | { |
2463 | return 0; | |
2464 | } | |
2465 | ||
7b41b173 EP |
2466 | static inline int security_shm_shmat(struct shmid_kernel *shp, |
2467 | char __user *shmaddr, int shmflg) | |
1da177e4 LT |
2468 | { |
2469 | return 0; | |
2470 | } | |
2471 | ||
7b41b173 | 2472 | static inline int security_sem_alloc(struct sem_array *sma) |
1da177e4 LT |
2473 | { |
2474 | return 0; | |
2475 | } | |
2476 | ||
7b41b173 | 2477 | static inline void security_sem_free(struct sem_array *sma) |
1da177e4 LT |
2478 | { } |
2479 | ||
7b41b173 | 2480 | static inline int security_sem_associate(struct sem_array *sma, int semflg) |
1da177e4 LT |
2481 | { |
2482 | return 0; | |
2483 | } | |
2484 | ||
7b41b173 | 2485 | static inline int security_sem_semctl(struct sem_array *sma, int cmd) |
1da177e4 LT |
2486 | { |
2487 | return 0; | |
2488 | } | |
2489 | ||
7b41b173 EP |
2490 | static inline int security_sem_semop(struct sem_array *sma, |
2491 | struct sembuf *sops, unsigned nsops, | |
2492 | int alter) | |
1da177e4 LT |
2493 | { |
2494 | return 0; | |
2495 | } | |
2496 | ||
7b41b173 | 2497 | static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode) |
1da177e4 LT |
2498 | { } |
2499 | ||
04ff9708 | 2500 | static inline int security_getprocattr(struct task_struct *p, char *name, char **value) |
1da177e4 LT |
2501 | { |
2502 | return -EINVAL; | |
2503 | } | |
2504 | ||
2505 | static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) | |
2506 | { | |
2507 | return -EINVAL; | |
2508 | } | |
2509 | ||
7b41b173 | 2510 | static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) |
1da177e4 | 2511 | { |
7b41b173 | 2512 | return cap_netlink_send(sk, skb); |
1da177e4 LT |
2513 | } |
2514 | ||
7b41b173 | 2515 | static inline int security_netlink_recv(struct sk_buff *skb, int cap) |
1da177e4 | 2516 | { |
7b41b173 | 2517 | return cap_netlink_recv(skb, cap); |
1da177e4 LT |
2518 | } |
2519 | ||
dc49c1f9 CZ |
2520 | static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
2521 | { | |
2522 | return -EOPNOTSUPP; | |
2523 | } | |
2524 | ||
7bf570dc | 2525 | static inline int security_secctx_to_secid(const char *secdata, |
63cb3449 DH |
2526 | u32 seclen, |
2527 | u32 *secid) | |
2528 | { | |
2529 | return -EOPNOTSUPP; | |
2530 | } | |
2531 | ||
dc49c1f9 CZ |
2532 | static inline void security_release_secctx(char *secdata, u32 seclen) |
2533 | { | |
dc49c1f9 | 2534 | } |
1ee65e37 DQ |
2535 | |
2536 | static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) | |
2537 | { | |
2538 | return -EOPNOTSUPP; | |
2539 | } | |
2540 | static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
2541 | { | |
2542 | return -EOPNOTSUPP; | |
2543 | } | |
2544 | static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
2545 | { | |
2546 | return -EOPNOTSUPP; | |
2547 | } | |
1da177e4 LT |
2548 | #endif /* CONFIG_SECURITY */ |
2549 | ||
2550 | #ifdef CONFIG_SECURITY_NETWORK | |
4237c75c | 2551 | |
3610cda5 | 2552 | int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); |
20510f2f JM |
2553 | int security_unix_may_send(struct socket *sock, struct socket *other); |
2554 | int security_socket_create(int family, int type, int protocol, int kern); | |
2555 | int security_socket_post_create(struct socket *sock, int family, | |
2556 | int type, int protocol, int kern); | |
2557 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); | |
2558 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); | |
2559 | int security_socket_listen(struct socket *sock, int backlog); | |
2560 | int security_socket_accept(struct socket *sock, struct socket *newsock); | |
20510f2f JM |
2561 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); |
2562 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
2563 | int size, int flags); | |
2564 | int security_socket_getsockname(struct socket *sock); | |
2565 | int security_socket_getpeername(struct socket *sock); | |
2566 | int security_socket_getsockopt(struct socket *sock, int level, int optname); | |
2567 | int security_socket_setsockopt(struct socket *sock, int level, int optname); | |
2568 | int security_socket_shutdown(struct socket *sock, int how); | |
2569 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); | |
2570 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
2571 | int __user *optlen, unsigned len); | |
2572 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); | |
2573 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority); | |
2574 | void security_sk_free(struct sock *sk); | |
2575 | void security_sk_clone(const struct sock *sk, struct sock *newsk); | |
2576 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl); | |
2577 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); | |
2578 | void security_sock_graft(struct sock*sk, struct socket *parent); | |
2579 | int security_inet_conn_request(struct sock *sk, | |
2580 | struct sk_buff *skb, struct request_sock *req); | |
2581 | void security_inet_csk_clone(struct sock *newsk, | |
2582 | const struct request_sock *req); | |
2583 | void security_inet_conn_established(struct sock *sk, | |
2584 | struct sk_buff *skb); | |
2606fd1f EP |
2585 | int security_secmark_relabel_packet(u32 secid); |
2586 | void security_secmark_refcount_inc(void); | |
2587 | void security_secmark_refcount_dec(void); | |
2b980dbd PM |
2588 | int security_tun_dev_create(void); |
2589 | void security_tun_dev_post_create(struct sock *sk); | |
2590 | int security_tun_dev_attach(struct sock *sk); | |
6b877699 | 2591 | |
1da177e4 | 2592 | #else /* CONFIG_SECURITY_NETWORK */ |
3610cda5 DM |
2593 | static inline int security_unix_stream_connect(struct sock *sock, |
2594 | struct sock *other, | |
7b41b173 | 2595 | struct sock *newsk) |
1da177e4 LT |
2596 | { |
2597 | return 0; | |
2598 | } | |
2599 | ||
7b41b173 EP |
2600 | static inline int security_unix_may_send(struct socket *sock, |
2601 | struct socket *other) | |
1da177e4 LT |
2602 | { |
2603 | return 0; | |
2604 | } | |
2605 | ||
7b41b173 EP |
2606 | static inline int security_socket_create(int family, int type, |
2607 | int protocol, int kern) | |
1da177e4 LT |
2608 | { |
2609 | return 0; | |
2610 | } | |
2611 | ||
7b41b173 | 2612 | static inline int security_socket_post_create(struct socket *sock, |
7420ed23 VY |
2613 | int family, |
2614 | int type, | |
2615 | int protocol, int kern) | |
1da177e4 | 2616 | { |
7420ed23 | 2617 | return 0; |
1da177e4 LT |
2618 | } |
2619 | ||
7b41b173 EP |
2620 | static inline int security_socket_bind(struct socket *sock, |
2621 | struct sockaddr *address, | |
1da177e4 LT |
2622 | int addrlen) |
2623 | { | |
2624 | return 0; | |
2625 | } | |
2626 | ||
7b41b173 EP |
2627 | static inline int security_socket_connect(struct socket *sock, |
2628 | struct sockaddr *address, | |
1da177e4 LT |
2629 | int addrlen) |
2630 | { | |
2631 | return 0; | |
2632 | } | |
2633 | ||
7b41b173 | 2634 | static inline int security_socket_listen(struct socket *sock, int backlog) |
1da177e4 LT |
2635 | { |
2636 | return 0; | |
2637 | } | |
2638 | ||
7b41b173 EP |
2639 | static inline int security_socket_accept(struct socket *sock, |
2640 | struct socket *newsock) | |
1da177e4 LT |
2641 | { |
2642 | return 0; | |
2643 | } | |
2644 | ||
7b41b173 EP |
2645 | static inline int security_socket_sendmsg(struct socket *sock, |
2646 | struct msghdr *msg, int size) | |
1da177e4 LT |
2647 | { |
2648 | return 0; | |
2649 | } | |
2650 | ||
7b41b173 EP |
2651 | static inline int security_socket_recvmsg(struct socket *sock, |
2652 | struct msghdr *msg, int size, | |
1da177e4 LT |
2653 | int flags) |
2654 | { | |
2655 | return 0; | |
2656 | } | |
2657 | ||
7b41b173 | 2658 | static inline int security_socket_getsockname(struct socket *sock) |
1da177e4 LT |
2659 | { |
2660 | return 0; | |
2661 | } | |
2662 | ||
7b41b173 | 2663 | static inline int security_socket_getpeername(struct socket *sock) |
1da177e4 LT |
2664 | { |
2665 | return 0; | |
2666 | } | |
2667 | ||
7b41b173 | 2668 | static inline int security_socket_getsockopt(struct socket *sock, |
1da177e4 LT |
2669 | int level, int optname) |
2670 | { | |
2671 | return 0; | |
2672 | } | |
2673 | ||
7b41b173 | 2674 | static inline int security_socket_setsockopt(struct socket *sock, |
1da177e4 LT |
2675 | int level, int optname) |
2676 | { | |
2677 | return 0; | |
2678 | } | |
2679 | ||
7b41b173 | 2680 | static inline int security_socket_shutdown(struct socket *sock, int how) |
1da177e4 LT |
2681 | { |
2682 | return 0; | |
2683 | } | |
7b41b173 EP |
2684 | static inline int security_sock_rcv_skb(struct sock *sk, |
2685 | struct sk_buff *skb) | |
1da177e4 LT |
2686 | { |
2687 | return 0; | |
2688 | } | |
2689 | ||
2c7946a7 CZ |
2690 | static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, |
2691 | int __user *optlen, unsigned len) | |
2692 | { | |
2693 | return -ENOPROTOOPT; | |
2694 | } | |
2695 | ||
dc49c1f9 | 2696 | static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) |
1da177e4 LT |
2697 | { |
2698 | return -ENOPROTOOPT; | |
2699 | } | |
2700 | ||
dd0fc66f | 2701 | static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) |
1da177e4 LT |
2702 | { |
2703 | return 0; | |
2704 | } | |
2705 | ||
2706 | static inline void security_sk_free(struct sock *sk) | |
892c141e VY |
2707 | { |
2708 | } | |
2709 | ||
2710 | static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1da177e4 LT |
2711 | { |
2712 | } | |
df71837d | 2713 | |
beb8d13b | 2714 | static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl) |
df71837d | 2715 | { |
df71837d | 2716 | } |
4237c75c VY |
2717 | |
2718 | static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
2719 | { | |
2720 | } | |
2721 | ||
7b41b173 | 2722 | static inline void security_sock_graft(struct sock *sk, struct socket *parent) |
4237c75c VY |
2723 | { |
2724 | } | |
2725 | ||
2726 | static inline int security_inet_conn_request(struct sock *sk, | |
2727 | struct sk_buff *skb, struct request_sock *req) | |
2728 | { | |
2729 | return 0; | |
2730 | } | |
2731 | ||
2732 | static inline void security_inet_csk_clone(struct sock *newsk, | |
2733 | const struct request_sock *req) | |
2734 | { | |
2735 | } | |
6b877699 VY |
2736 | |
2737 | static inline void security_inet_conn_established(struct sock *sk, | |
2738 | struct sk_buff *skb) | |
2739 | { | |
2740 | } | |
2b980dbd | 2741 | |
2606fd1f EP |
2742 | static inline int security_secmark_relabel_packet(u32 secid) |
2743 | { | |
2744 | return 0; | |
2745 | } | |
2746 | ||
2747 | static inline void security_secmark_refcount_inc(void) | |
2748 | { | |
2749 | } | |
2750 | ||
2751 | static inline void security_secmark_refcount_dec(void) | |
2752 | { | |
2753 | } | |
2754 | ||
2b980dbd PM |
2755 | static inline int security_tun_dev_create(void) |
2756 | { | |
2757 | return 0; | |
2758 | } | |
2759 | ||
2760 | static inline void security_tun_dev_post_create(struct sock *sk) | |
2761 | { | |
2762 | } | |
2763 | ||
2764 | static inline int security_tun_dev_attach(struct sock *sk) | |
2765 | { | |
2766 | return 0; | |
2767 | } | |
1da177e4 LT |
2768 | #endif /* CONFIG_SECURITY_NETWORK */ |
2769 | ||
df71837d | 2770 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
beb8d13b | 2771 | |
03e1ad7b PM |
2772 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx); |
2773 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); | |
2774 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); | |
2775 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); | |
20510f2f JM |
2776 | int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); |
2777 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2778 | struct xfrm_sec_ctx *polsec, u32 secid); | |
2779 | int security_xfrm_state_delete(struct xfrm_state *x); | |
2780 | void security_xfrm_state_free(struct xfrm_state *x); | |
03e1ad7b | 2781 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
20510f2f | 2782 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, |
e33f7704 DM |
2783 | struct xfrm_policy *xp, |
2784 | const struct flowi *fl); | |
20510f2f JM |
2785 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); |
2786 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl); | |
beb8d13b | 2787 | |
df71837d | 2788 | #else /* CONFIG_SECURITY_NETWORK_XFRM */ |
20510f2f | 2789 | |
03e1ad7b | 2790 | static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) |
df71837d TJ |
2791 | { |
2792 | return 0; | |
2793 | } | |
2794 | ||
03e1ad7b | 2795 | static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) |
df71837d TJ |
2796 | { |
2797 | return 0; | |
2798 | } | |
2799 | ||
03e1ad7b | 2800 | static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
df71837d TJ |
2801 | { |
2802 | } | |
2803 | ||
03e1ad7b | 2804 | static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
c8c05a8e CZ |
2805 | { |
2806 | return 0; | |
2807 | } | |
2808 | ||
e0d1caa7 VY |
2809 | static inline int security_xfrm_state_alloc(struct xfrm_state *x, |
2810 | struct xfrm_user_sec_ctx *sec_ctx) | |
2811 | { | |
2812 | return 0; | |
2813 | } | |
2814 | ||
2815 | static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2816 | struct xfrm_sec_ctx *polsec, u32 secid) | |
df71837d TJ |
2817 | { |
2818 | return 0; | |
2819 | } | |
2820 | ||
2821 | static inline void security_xfrm_state_free(struct xfrm_state *x) | |
2822 | { | |
2823 | } | |
2824 | ||
6f68dc37 | 2825 | static inline int security_xfrm_state_delete(struct xfrm_state *x) |
c8c05a8e CZ |
2826 | { |
2827 | return 0; | |
2828 | } | |
2829 | ||
03e1ad7b | 2830 | static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
df71837d TJ |
2831 | { |
2832 | return 0; | |
2833 | } | |
e0d1caa7 VY |
2834 | |
2835 | static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
e33f7704 | 2836 | struct xfrm_policy *xp, const struct flowi *fl) |
e0d1caa7 VY |
2837 | { |
2838 | return 1; | |
2839 | } | |
2840 | ||
beb8d13b | 2841 | static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) |
e0d1caa7 VY |
2842 | { |
2843 | return 0; | |
2844 | } | |
2845 | ||
beb8d13b VY |
2846 | static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) |
2847 | { | |
2848 | } | |
2849 | ||
df71837d TJ |
2850 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
2851 | ||
be6d3e56 KT |
2852 | #ifdef CONFIG_SECURITY_PATH |
2853 | int security_path_unlink(struct path *dir, struct dentry *dentry); | |
2854 | int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode); | |
2855 | int security_path_rmdir(struct path *dir, struct dentry *dentry); | |
2856 | int security_path_mknod(struct path *dir, struct dentry *dentry, int mode, | |
2857 | unsigned int dev); | |
ea0d3ab2 | 2858 | int security_path_truncate(struct path *path); |
be6d3e56 KT |
2859 | int security_path_symlink(struct path *dir, struct dentry *dentry, |
2860 | const char *old_name); | |
2861 | int security_path_link(struct dentry *old_dentry, struct path *new_dir, | |
2862 | struct dentry *new_dentry); | |
2863 | int security_path_rename(struct path *old_dir, struct dentry *old_dentry, | |
2864 | struct path *new_dir, struct dentry *new_dentry); | |
89eda068 TH |
2865 | int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt, |
2866 | mode_t mode); | |
2867 | int security_path_chown(struct path *path, uid_t uid, gid_t gid); | |
8b8efb44 | 2868 | int security_path_chroot(struct path *path); |
be6d3e56 KT |
2869 | #else /* CONFIG_SECURITY_PATH */ |
2870 | static inline int security_path_unlink(struct path *dir, struct dentry *dentry) | |
2871 | { | |
2872 | return 0; | |
2873 | } | |
2874 | ||
2875 | static inline int security_path_mkdir(struct path *dir, struct dentry *dentry, | |
2876 | int mode) | |
2877 | { | |
2878 | return 0; | |
2879 | } | |
2880 | ||
2881 | static inline int security_path_rmdir(struct path *dir, struct dentry *dentry) | |
2882 | { | |
2883 | return 0; | |
2884 | } | |
2885 | ||
2886 | static inline int security_path_mknod(struct path *dir, struct dentry *dentry, | |
2887 | int mode, unsigned int dev) | |
2888 | { | |
2889 | return 0; | |
2890 | } | |
2891 | ||
ea0d3ab2 | 2892 | static inline int security_path_truncate(struct path *path) |
be6d3e56 KT |
2893 | { |
2894 | return 0; | |
2895 | } | |
2896 | ||
2897 | static inline int security_path_symlink(struct path *dir, struct dentry *dentry, | |
2898 | const char *old_name) | |
2899 | { | |
2900 | return 0; | |
2901 | } | |
2902 | ||
2903 | static inline int security_path_link(struct dentry *old_dentry, | |
2904 | struct path *new_dir, | |
2905 | struct dentry *new_dentry) | |
2906 | { | |
2907 | return 0; | |
2908 | } | |
2909 | ||
2910 | static inline int security_path_rename(struct path *old_dir, | |
2911 | struct dentry *old_dentry, | |
2912 | struct path *new_dir, | |
2913 | struct dentry *new_dentry) | |
2914 | { | |
2915 | return 0; | |
2916 | } | |
89eda068 TH |
2917 | |
2918 | static inline int security_path_chmod(struct dentry *dentry, | |
2919 | struct vfsmount *mnt, | |
2920 | mode_t mode) | |
2921 | { | |
2922 | return 0; | |
2923 | } | |
2924 | ||
2925 | static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid) | |
2926 | { | |
2927 | return 0; | |
2928 | } | |
8b8efb44 TH |
2929 | |
2930 | static inline int security_path_chroot(struct path *path) | |
2931 | { | |
2932 | return 0; | |
2933 | } | |
be6d3e56 KT |
2934 | #endif /* CONFIG_SECURITY_PATH */ |
2935 | ||
29db9190 DH |
2936 | #ifdef CONFIG_KEYS |
2937 | #ifdef CONFIG_SECURITY | |
29db9190 | 2938 | |
d84f4f99 | 2939 | int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); |
20510f2f JM |
2940 | void security_key_free(struct key *key); |
2941 | int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 2942 | const struct cred *cred, key_perm_t perm); |
70a5bb72 | 2943 | int security_key_getsecurity(struct key *key, char **_buffer); |
29db9190 DH |
2944 | |
2945 | #else | |
2946 | ||
d720024e | 2947 | static inline int security_key_alloc(struct key *key, |
d84f4f99 | 2948 | const struct cred *cred, |
7e047ef5 | 2949 | unsigned long flags) |
29db9190 DH |
2950 | { |
2951 | return 0; | |
2952 | } | |
2953 | ||
2954 | static inline void security_key_free(struct key *key) | |
2955 | { | |
2956 | } | |
2957 | ||
2958 | static inline int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 2959 | const struct cred *cred, |
29db9190 DH |
2960 | key_perm_t perm) |
2961 | { | |
2962 | return 0; | |
2963 | } | |
2964 | ||
70a5bb72 DH |
2965 | static inline int security_key_getsecurity(struct key *key, char **_buffer) |
2966 | { | |
2967 | *_buffer = NULL; | |
2968 | return 0; | |
be1d6a5f | 2969 | } |
ee18d64c | 2970 | |
29db9190 DH |
2971 | #endif |
2972 | #endif /* CONFIG_KEYS */ | |
2973 | ||
03d37d25 AD |
2974 | #ifdef CONFIG_AUDIT |
2975 | #ifdef CONFIG_SECURITY | |
2976 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule); | |
2977 | int security_audit_rule_known(struct audit_krule *krule); | |
2978 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
2979 | struct audit_context *actx); | |
2980 | void security_audit_rule_free(void *lsmrule); | |
2981 | ||
2982 | #else | |
2983 | ||
2984 | static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, | |
2985 | void **lsmrule) | |
2986 | { | |
2987 | return 0; | |
2988 | } | |
2989 | ||
2990 | static inline int security_audit_rule_known(struct audit_krule *krule) | |
2991 | { | |
2992 | return 0; | |
2993 | } | |
2994 | ||
2995 | static inline int security_audit_rule_match(u32 secid, u32 field, u32 op, | |
2996 | void *lsmrule, struct audit_context *actx) | |
2997 | { | |
2998 | return 0; | |
2999 | } | |
3000 | ||
3001 | static inline void security_audit_rule_free(void *lsmrule) | |
3002 | { } | |
3003 | ||
3004 | #endif /* CONFIG_SECURITY */ | |
3005 | #endif /* CONFIG_AUDIT */ | |
3006 | ||
da31894e EP |
3007 | #ifdef CONFIG_SECURITYFS |
3008 | ||
3009 | extern struct dentry *securityfs_create_file(const char *name, mode_t mode, | |
3010 | struct dentry *parent, void *data, | |
3011 | const struct file_operations *fops); | |
3012 | extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); | |
3013 | extern void securityfs_remove(struct dentry *dentry); | |
3014 | ||
3015 | #else /* CONFIG_SECURITYFS */ | |
3016 | ||
3017 | static inline struct dentry *securityfs_create_dir(const char *name, | |
3018 | struct dentry *parent) | |
3019 | { | |
3020 | return ERR_PTR(-ENODEV); | |
3021 | } | |
3022 | ||
3023 | static inline struct dentry *securityfs_create_file(const char *name, | |
3024 | mode_t mode, | |
3025 | struct dentry *parent, | |
3026 | void *data, | |
3027 | const struct file_operations *fops) | |
3028 | { | |
3029 | return ERR_PTR(-ENODEV); | |
3030 | } | |
3031 | ||
3032 | static inline void securityfs_remove(struct dentry *dentry) | |
3033 | {} | |
3034 | ||
3035 | #endif | |
3036 | ||
3d544f41 PE |
3037 | #ifdef CONFIG_SECURITY |
3038 | ||
3039 | static inline char *alloc_secdata(void) | |
3040 | { | |
3041 | return (char *)get_zeroed_page(GFP_KERNEL); | |
3042 | } | |
3043 | ||
3044 | static inline void free_secdata(void *secdata) | |
3045 | { | |
3046 | free_page((unsigned long)secdata); | |
3047 | } | |
3048 | ||
3049 | #else | |
3050 | ||
3051 | static inline char *alloc_secdata(void) | |
3052 | { | |
3053 | return (char *)1; | |
3054 | } | |
3055 | ||
3056 | static inline void free_secdata(void *secdata) | |
3057 | { } | |
3058 | #endif /* CONFIG_SECURITY */ | |
3059 | ||
1da177e4 LT |
3060 | #endif /* ! __LINUX_SECURITY_H */ |
3061 |