Commit | Line | Data |
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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 | ||
29db9190 | 25 | #include <linux/key.h> |
40401530 | 26 | #include <linux/capability.h> |
5a0e3ad6 | 27 | #include <linux/slab.h> |
40401530 | 28 | #include <linux/err.h> |
d47be3df | 29 | #include <linux/string.h> |
40401530 AV |
30 | |
31 | struct linux_binprm; | |
32 | struct cred; | |
33 | struct rlimit; | |
34 | struct siginfo; | |
35 | struct sem_array; | |
36 | struct sembuf; | |
37 | struct kern_ipc_perm; | |
38 | struct audit_context; | |
39 | struct super_block; | |
40 | struct inode; | |
41 | struct dentry; | |
42 | struct file; | |
43 | struct vfsmount; | |
44 | struct path; | |
45 | struct qstr; | |
46 | struct nameidata; | |
47 | struct iattr; | |
48 | struct fown_struct; | |
49 | struct file_operations; | |
50 | struct shmid_kernel; | |
51 | struct msg_msg; | |
52 | struct msg_queue; | |
53 | struct xattr; | |
54 | struct xfrm_sec_ctx; | |
55 | struct mm_struct; | |
1da177e4 | 56 | |
076c54c5 AD |
57 | /* Maximum number of letters for an LSM name string */ |
58 | #define SECURITY_NAME_MAX 10 | |
59 | ||
06112163 EP |
60 | /* If capable should audit the security request */ |
61 | #define SECURITY_CAP_NOAUDIT 0 | |
62 | #define SECURITY_CAP_AUDIT 1 | |
63 | ||
eb9ae686 DQ |
64 | /* LSM Agnostic defines for sb_set_mnt_opts */ |
65 | #define SECURITY_LSM_NATIVE_LABELS 1 | |
66 | ||
1da177e4 | 67 | struct ctl_table; |
03d37d25 | 68 | struct audit_krule; |
3486740a | 69 | struct user_namespace; |
40401530 | 70 | struct timezone; |
1da177e4 LT |
71 | |
72 | /* | |
73 | * These functions are in security/capability.c and are used | |
74 | * as the default capabilities functions | |
75 | */ | |
6a9de491 EP |
76 | extern int cap_capable(const struct cred *cred, struct user_namespace *ns, |
77 | int cap, int audit); | |
1e6d7679 | 78 | extern int cap_settime(const struct timespec *ts, const struct timezone *tz); |
9e48858f | 79 | extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 80 | extern int cap_ptrace_traceme(struct task_struct *parent); |
7b41b173 | 81 | extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); |
d84f4f99 DH |
82 | extern int cap_capset(struct cred *new, const struct cred *old, |
83 | const kernel_cap_t *effective, | |
84 | const kernel_cap_t *inheritable, | |
85 | const kernel_cap_t *permitted); | |
a6f76f23 | 86 | extern int cap_bprm_set_creds(struct linux_binprm *bprm); |
1da177e4 | 87 | extern int cap_bprm_secureexec(struct linux_binprm *bprm); |
8f0cfa52 DH |
88 | extern int cap_inode_setxattr(struct dentry *dentry, const char *name, |
89 | const void *value, size_t size, int flags); | |
90 | extern int cap_inode_removexattr(struct dentry *dentry, const char *name); | |
b5376771 SH |
91 | extern int cap_inode_need_killpriv(struct dentry *dentry); |
92 | extern int cap_inode_killpriv(struct dentry *dentry); | |
d007794a | 93 | extern int cap_mmap_addr(unsigned long addr); |
e5467859 AV |
94 | extern int cap_mmap_file(struct file *file, unsigned long reqprot, |
95 | unsigned long prot, unsigned long flags); | |
d84f4f99 | 96 | extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); |
3898b1b4 | 97 | extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 98 | unsigned long arg4, unsigned long arg5); |
b0ae1981 | 99 | extern int cap_task_setscheduler(struct task_struct *p); |
7b41b173 EP |
100 | extern int cap_task_setioprio(struct task_struct *p, int ioprio); |
101 | extern int cap_task_setnice(struct task_struct *p, int nice); | |
20510f2f | 102 | extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); |
1da177e4 LT |
103 | |
104 | struct msghdr; | |
105 | struct sk_buff; | |
106 | struct sock; | |
107 | struct sockaddr; | |
108 | struct socket; | |
df71837d TJ |
109 | struct flowi; |
110 | struct dst_entry; | |
111 | struct xfrm_selector; | |
112 | struct xfrm_policy; | |
113 | struct xfrm_state; | |
114 | struct xfrm_user_sec_ctx; | |
2069f457 | 115 | struct seq_file; |
1da177e4 LT |
116 | |
117 | extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb); | |
1da177e4 | 118 | |
189b3b1c | 119 | void reset_security_ops(void); |
120 | ||
6e141546 | 121 | #ifdef CONFIG_MMU |
ed032189 | 122 | extern unsigned long mmap_min_addr; |
a2551df7 | 123 | extern unsigned long dac_mmap_min_addr; |
6e141546 | 124 | #else |
be8cfc4a | 125 | #define mmap_min_addr 0UL |
6e141546 DH |
126 | #define dac_mmap_min_addr 0UL |
127 | #endif | |
128 | ||
1da177e4 LT |
129 | /* |
130 | * Values used in the task_security_ops calls | |
131 | */ | |
132 | /* setuid or setgid, id0 == uid or gid */ | |
133 | #define LSM_SETID_ID 1 | |
134 | ||
135 | /* setreuid or setregid, id0 == real, id1 == eff */ | |
136 | #define LSM_SETID_RE 2 | |
137 | ||
138 | /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ | |
139 | #define LSM_SETID_RES 4 | |
140 | ||
141 | /* setfsuid or setfsgid, id0 == fsuid or fsgid */ | |
142 | #define LSM_SETID_FS 8 | |
143 | ||
144 | /* forward declares to avoid warnings */ | |
1da177e4 | 145 | struct sched_param; |
4237c75c | 146 | struct request_sock; |
1da177e4 | 147 | |
a6f76f23 | 148 | /* bprm->unsafe reasons */ |
1da177e4 LT |
149 | #define LSM_UNSAFE_SHARE 1 |
150 | #define LSM_UNSAFE_PTRACE 2 | |
151 | #define LSM_UNSAFE_PTRACE_CAP 4 | |
259e5e6c | 152 | #define LSM_UNSAFE_NO_NEW_PRIVS 8 |
1da177e4 | 153 | |
6e141546 | 154 | #ifdef CONFIG_MMU |
8d65af78 | 155 | extern int mmap_min_addr_handler(struct ctl_table *table, int write, |
47d439e9 | 156 | void __user *buffer, size_t *lenp, loff_t *ppos); |
6e141546 | 157 | #endif |
47d439e9 | 158 | |
9d8f13ba MZ |
159 | /* security_inode_init_security callback function to write xattrs */ |
160 | typedef int (*initxattrs) (struct inode *inode, | |
161 | const struct xattr *xattr_array, void *fs_data); | |
162 | ||
1da177e4 LT |
163 | #ifdef CONFIG_SECURITY |
164 | ||
e0007529 EP |
165 | struct security_mnt_opts { |
166 | char **mnt_opts; | |
167 | int *mnt_opts_flags; | |
168 | int num_mnt_opts; | |
169 | }; | |
170 | ||
171 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
172 | { | |
173 | opts->mnt_opts = NULL; | |
174 | opts->mnt_opts_flags = NULL; | |
175 | opts->num_mnt_opts = 0; | |
176 | } | |
177 | ||
178 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
179 | { | |
180 | int i; | |
181 | if (opts->mnt_opts) | |
7b41b173 | 182 | for (i = 0; i < opts->num_mnt_opts; i++) |
e0007529 EP |
183 | kfree(opts->mnt_opts[i]); |
184 | kfree(opts->mnt_opts); | |
185 | opts->mnt_opts = NULL; | |
186 | kfree(opts->mnt_opts_flags); | |
187 | opts->mnt_opts_flags = NULL; | |
188 | opts->num_mnt_opts = 0; | |
189 | } | |
190 | ||
1da177e4 LT |
191 | /** |
192 | * struct security_operations - main security structure | |
193 | * | |
076c54c5 AD |
194 | * Security module identifier. |
195 | * | |
196 | * @name: | |
11be0b3c | 197 | * A string that acts as a unique identifier for the LSM with max number |
076c54c5 AD |
198 | * of characters = SECURITY_NAME_MAX. |
199 | * | |
1da177e4 LT |
200 | * Security hooks for program execution operations. |
201 | * | |
a6f76f23 | 202 | * @bprm_set_creds: |
1da177e4 LT |
203 | * Save security information in the bprm->security field, typically based |
204 | * on information about the bprm->file, for later use by the apply_creds | |
205 | * hook. This hook may also optionally check permissions (e.g. for | |
206 | * transitions between security domains). | |
207 | * This hook may be called multiple times during a single execve, e.g. for | |
208 | * interpreters. The hook can tell whether it has already been called by | |
209 | * checking to see if @bprm->security is non-NULL. If so, then the hook | |
210 | * may decide either to retain the security information saved earlier or | |
211 | * to replace it. | |
212 | * @bprm contains the linux_binprm structure. | |
213 | * Return 0 if the hook is successful and permission is granted. | |
214 | * @bprm_check_security: | |
a6f76f23 DH |
215 | * This hook mediates the point when a search for a binary handler will |
216 | * begin. It allows a check the @bprm->security value which is set in the | |
217 | * preceding set_creds call. The primary difference from set_creds is | |
218 | * that the argv list and envp list are reliably available in @bprm. This | |
219 | * hook may be called multiple times during a single execve; and in each | |
220 | * pass set_creds is called first. | |
7b41b173 | 221 | * @bprm contains the linux_binprm structure. |
1da177e4 | 222 | * Return 0 if the hook is successful and permission is granted. |
a6f76f23 DH |
223 | * @bprm_committing_creds: |
224 | * Prepare to install the new security attributes of a process being | |
225 | * transformed by an execve operation, based on the old credentials | |
226 | * pointed to by @current->cred and the information set in @bprm->cred by | |
227 | * the bprm_set_creds hook. @bprm points to the linux_binprm structure. | |
228 | * This hook is a good place to perform state changes on the process such | |
229 | * as closing open file descriptors to which access will no longer be | |
230 | * granted when the attributes are changed. This is called immediately | |
231 | * before commit_creds(). | |
232 | * @bprm_committed_creds: | |
233 | * Tidy up after the installation of the new security attributes of a | |
234 | * process being transformed by an execve operation. The new credentials | |
235 | * have, by this point, been set to @current->cred. @bprm points to the | |
236 | * linux_binprm structure. This hook is a good place to perform state | |
237 | * changes on the process such as clearing out non-inheritable signal | |
238 | * state. This is called immediately after commit_creds(). | |
1da177e4 | 239 | * @bprm_secureexec: |
7b41b173 EP |
240 | * Return a boolean value (0 or 1) indicating whether a "secure exec" |
241 | * is required. The flag is passed in the auxiliary table | |
242 | * on the initial stack to the ELF interpreter to indicate whether libc | |
243 | * should enable secure mode. | |
244 | * @bprm contains the linux_binprm structure. | |
1da177e4 LT |
245 | * |
246 | * Security hooks for filesystem operations. | |
247 | * | |
248 | * @sb_alloc_security: | |
249 | * Allocate and attach a security structure to the sb->s_security field. | |
250 | * The s_security field is initialized to NULL when the structure is | |
251 | * allocated. | |
252 | * @sb contains the super_block structure to be modified. | |
253 | * Return 0 if operation was successful. | |
254 | * @sb_free_security: | |
255 | * Deallocate and clear the sb->s_security field. | |
256 | * @sb contains the super_block structure to be modified. | |
257 | * @sb_statfs: | |
726c3342 DH |
258 | * Check permission before obtaining filesystem statistics for the @mnt |
259 | * mountpoint. | |
260 | * @dentry is a handle on the superblock for the filesystem. | |
7b41b173 | 261 | * Return 0 if permission is granted. |
1da177e4 LT |
262 | * @sb_mount: |
263 | * Check permission before an object specified by @dev_name is mounted on | |
264 | * the mount point named by @nd. For an ordinary mount, @dev_name | |
265 | * identifies a device if the file system type requires a device. For a | |
266 | * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a | |
267 | * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the | |
268 | * pathname of the object being mounted. | |
269 | * @dev_name contains the name for object being mounted. | |
b5266eb4 | 270 | * @path contains the path for mount point object. |
1da177e4 LT |
271 | * @type contains the filesystem type. |
272 | * @flags contains the mount flags. | |
273 | * @data contains the filesystem-specific data. | |
274 | * Return 0 if permission is granted. | |
275 | * @sb_copy_data: | |
276 | * Allow mount option data to be copied prior to parsing by the filesystem, | |
277 | * so that the security module can extract security-specific mount | |
278 | * options cleanly (a filesystem may modify the data e.g. with strsep()). | |
279 | * This also allows the original mount data to be stripped of security- | |
280 | * specific options to avoid having to make filesystems aware of them. | |
281 | * @type the type of filesystem being mounted. | |
282 | * @orig the original mount data copied from userspace. | |
283 | * @copy copied data which will be passed to the security module. | |
284 | * Returns 0 if the copy was successful. | |
ff36fe2c | 285 | * @sb_remount: |
11be0b3c | 286 | * Extracts security system specific mount options and verifies no changes |
ff36fe2c EP |
287 | * are being made to those options. |
288 | * @sb superblock being remounted | |
289 | * @data contains the filesystem-specific data. | |
290 | * Return 0 if permission is granted. | |
1da177e4 LT |
291 | * @sb_umount: |
292 | * Check permission before the @mnt file system is unmounted. | |
293 | * @mnt contains the mounted file system. | |
294 | * @flags contains the unmount flags, e.g. MNT_FORCE. | |
295 | * Return 0 if permission is granted. | |
1da177e4 LT |
296 | * @sb_pivotroot: |
297 | * Check permission before pivoting the root filesystem. | |
b5266eb4 | 298 | * @old_path contains the path for the new location of the current root (put_old). |
7b41b173 | 299 | * @new_path contains the path for the new root (new_root). |
1da177e4 | 300 | * Return 0 if permission is granted. |
c9180a57 EP |
301 | * @sb_set_mnt_opts: |
302 | * Set the security relevant mount options used for a superblock | |
303 | * @sb the superblock to set security mount options for | |
e0007529 | 304 | * @opts binary data structure containing all lsm mount data |
c9180a57 EP |
305 | * @sb_clone_mnt_opts: |
306 | * Copy all security options from a given superblock to another | |
307 | * @oldsb old superblock which contain information to clone | |
308 | * @newsb new superblock which needs filled in | |
e0007529 EP |
309 | * @sb_parse_opts_str: |
310 | * Parse a string of security data filling in the opts structure | |
311 | * @options string containing all mount options known by the LSM | |
312 | * @opts binary data structure usable by the LSM | |
d47be3df DQ |
313 | * @dentry_init_security: |
314 | * Compute a context for a dentry as the inode is not yet available | |
315 | * since NFSv4 has no label backed by an EA anyway. | |
316 | * @dentry dentry to use in calculating the context. | |
317 | * @mode mode used to determine resource type. | |
318 | * @name name of the last path component used to create file | |
319 | * @ctx pointer to place the pointer to the resulting context in. | |
320 | * @ctxlen point to place the length of the resulting context. | |
321 | * | |
1da177e4 LT |
322 | * |
323 | * Security hooks for inode operations. | |
324 | * | |
325 | * @inode_alloc_security: | |
326 | * Allocate and attach a security structure to @inode->i_security. The | |
327 | * i_security field is initialized to NULL when the inode structure is | |
328 | * allocated. | |
329 | * @inode contains the inode structure. | |
330 | * Return 0 if operation was successful. | |
331 | * @inode_free_security: | |
332 | * @inode contains the inode structure. | |
333 | * Deallocate the inode security structure and set @inode->i_security to | |
7b41b173 | 334 | * NULL. |
5e41ff9e | 335 | * @inode_init_security: |
7b41b173 | 336 | * Obtain the security attribute name suffix and value to set on a newly |
5e41ff9e SS |
337 | * created inode and set up the incore security field for the new inode. |
338 | * This hook is called by the fs code as part of the inode creation | |
339 | * transaction and provides for atomic labeling of the inode, unlike | |
340 | * the post_create/mkdir/... hooks called by the VFS. The hook function | |
341 | * is expected to allocate the name and value via kmalloc, with the caller | |
342 | * being responsible for calling kfree after using them. | |
343 | * If the security module does not use security attributes or does | |
344 | * not wish to put a security attribute on this particular inode, | |
345 | * then it should return -EOPNOTSUPP to skip this processing. | |
346 | * @inode contains the inode structure of the newly created inode. | |
347 | * @dir contains the inode structure of the parent directory. | |
2a7dba39 | 348 | * @qstr contains the last path component of the new object |
5e41ff9e SS |
349 | * @name will be set to the allocated name suffix (e.g. selinux). |
350 | * @value will be set to the allocated attribute value. | |
351 | * @len will be set to the length of the value. | |
352 | * Returns 0 if @name and @value have been successfully set, | |
353 | * -EOPNOTSUPP if no security attribute is needed, or | |
354 | * -ENOMEM on memory allocation failure. | |
1da177e4 LT |
355 | * @inode_create: |
356 | * Check permission to create a regular file. | |
357 | * @dir contains inode structure of the parent of the new file. | |
358 | * @dentry contains the dentry structure for the file to be created. | |
359 | * @mode contains the file mode of the file to be created. | |
360 | * Return 0 if permission is granted. | |
1da177e4 LT |
361 | * @inode_link: |
362 | * Check permission before creating a new hard link to a file. | |
363 | * @old_dentry contains the dentry structure for an existing link to the file. | |
364 | * @dir contains the inode structure of the parent directory of the new link. | |
365 | * @new_dentry contains the dentry structure for the new link. | |
366 | * Return 0 if permission is granted. | |
be6d3e56 KT |
367 | * @path_link: |
368 | * Check permission before creating a new hard link to a file. | |
369 | * @old_dentry contains the dentry structure for an existing link | |
370 | * to the file. | |
371 | * @new_dir contains the path structure of the parent directory of | |
372 | * the new link. | |
373 | * @new_dentry contains the dentry structure for the new link. | |
374 | * Return 0 if permission is granted. | |
1da177e4 | 375 | * @inode_unlink: |
7b41b173 | 376 | * Check the permission to remove a hard link to a file. |
1da177e4 LT |
377 | * @dir contains the inode structure of parent directory of the file. |
378 | * @dentry contains the dentry structure for file to be unlinked. | |
379 | * Return 0 if permission is granted. | |
be6d3e56 KT |
380 | * @path_unlink: |
381 | * Check the permission to remove a hard link to a file. | |
382 | * @dir contains the path structure of parent directory of the file. | |
383 | * @dentry contains the dentry structure for file to be unlinked. | |
384 | * Return 0 if permission is granted. | |
1da177e4 LT |
385 | * @inode_symlink: |
386 | * Check the permission to create a symbolic link to a file. | |
387 | * @dir contains the inode structure of parent directory of the symbolic link. | |
388 | * @dentry contains the dentry structure of the symbolic link. | |
389 | * @old_name contains the pathname of file. | |
390 | * Return 0 if permission is granted. | |
be6d3e56 KT |
391 | * @path_symlink: |
392 | * Check the permission to create a symbolic link to a file. | |
393 | * @dir contains the path structure of parent directory of | |
394 | * the symbolic link. | |
395 | * @dentry contains the dentry structure of the symbolic link. | |
396 | * @old_name contains the pathname of file. | |
397 | * Return 0 if permission is granted. | |
1da177e4 LT |
398 | * @inode_mkdir: |
399 | * Check permissions to create a new directory in the existing directory | |
11be0b3c VA |
400 | * associated with inode structure @dir. |
401 | * @dir contains the inode structure of parent of the directory to be created. | |
1da177e4 LT |
402 | * @dentry contains the dentry structure of new directory. |
403 | * @mode contains the mode of new directory. | |
404 | * Return 0 if permission is granted. | |
be6d3e56 KT |
405 | * @path_mkdir: |
406 | * Check permissions to create a new directory in the existing directory | |
11be0b3c VA |
407 | * associated with path structure @path. |
408 | * @dir contains the path structure of parent of the directory | |
be6d3e56 KT |
409 | * to be created. |
410 | * @dentry contains the dentry structure of new directory. | |
411 | * @mode contains the mode of new directory. | |
412 | * Return 0 if permission is granted. | |
1da177e4 LT |
413 | * @inode_rmdir: |
414 | * Check the permission to remove a directory. | |
415 | * @dir contains the inode structure of parent of the directory to be removed. | |
416 | * @dentry contains the dentry structure of directory to be removed. | |
417 | * Return 0 if permission is granted. | |
be6d3e56 KT |
418 | * @path_rmdir: |
419 | * Check the permission to remove a directory. | |
420 | * @dir contains the path structure of parent of the directory to be | |
421 | * removed. | |
422 | * @dentry contains the dentry structure of directory to be removed. | |
423 | * Return 0 if permission is granted. | |
1da177e4 LT |
424 | * @inode_mknod: |
425 | * Check permissions when creating a special file (or a socket or a fifo | |
426 | * file created via the mknod system call). Note that if mknod operation | |
427 | * is being done for a regular file, then the create hook will be called | |
428 | * and not this hook. | |
429 | * @dir contains the inode structure of parent of the new file. | |
430 | * @dentry contains the dentry structure of the new file. | |
431 | * @mode contains the mode of the new file. | |
59c51591 | 432 | * @dev contains the device number. |
1da177e4 | 433 | * Return 0 if permission is granted. |
be6d3e56 KT |
434 | * @path_mknod: |
435 | * Check permissions when creating a file. Note that this hook is called | |
436 | * even if mknod operation is being done for a regular file. | |
437 | * @dir contains the path structure of parent of the new file. | |
438 | * @dentry contains the dentry structure of the new file. | |
439 | * @mode contains the mode of the new file. | |
440 | * @dev contains the undecoded device number. Use new_decode_dev() to get | |
441 | * the decoded device number. | |
442 | * Return 0 if permission is granted. | |
1da177e4 LT |
443 | * @inode_rename: |
444 | * Check for permission to rename a file or directory. | |
445 | * @old_dir contains the inode structure for parent of the old link. | |
446 | * @old_dentry contains the dentry structure of the old link. | |
447 | * @new_dir contains the inode structure for parent of the new link. | |
448 | * @new_dentry contains the dentry structure of the new link. | |
449 | * Return 0 if permission is granted. | |
be6d3e56 KT |
450 | * @path_rename: |
451 | * Check for permission to rename a file or directory. | |
452 | * @old_dir contains the path structure for parent of the old link. | |
453 | * @old_dentry contains the dentry structure of the old link. | |
454 | * @new_dir contains the path structure for parent of the new link. | |
455 | * @new_dentry contains the dentry structure of the new link. | |
456 | * Return 0 if permission is granted. | |
89eda068 TH |
457 | * @path_chmod: |
458 | * Check for permission to change DAC's permission of a file or directory. | |
459 | * @dentry contains the dentry structure. | |
460 | * @mnt contains the vfsmnt structure. | |
461 | * @mode contains DAC's mode. | |
462 | * Return 0 if permission is granted. | |
463 | * @path_chown: | |
464 | * Check for permission to change owner/group of a file or directory. | |
465 | * @path contains the path structure. | |
466 | * @uid contains new owner's ID. | |
467 | * @gid contains new group's ID. | |
468 | * Return 0 if permission is granted. | |
8b8efb44 TH |
469 | * @path_chroot: |
470 | * Check for permission to change root directory. | |
471 | * @path contains the path structure. | |
472 | * Return 0 if permission is granted. | |
1da177e4 LT |
473 | * @inode_readlink: |
474 | * Check the permission to read the symbolic link. | |
475 | * @dentry contains the dentry structure for the file link. | |
476 | * Return 0 if permission is granted. | |
477 | * @inode_follow_link: | |
478 | * Check permission to follow a symbolic link when looking up a pathname. | |
479 | * @dentry contains the dentry structure for the link. | |
480 | * @nd contains the nameidata structure for the parent directory. | |
481 | * Return 0 if permission is granted. | |
482 | * @inode_permission: | |
483 | * Check permission before accessing an inode. This hook is called by the | |
484 | * existing Linux permission function, so a security module can use it to | |
485 | * provide additional checking for existing Linux permission checks. | |
486 | * Notice that this hook is called when a file is opened (as well as many | |
487 | * other operations), whereas the file_security_ops permission hook is | |
488 | * called when the actual read/write operations are performed. | |
489 | * @inode contains the inode structure to check. | |
490 | * @mask contains the permission mask. | |
1da177e4 LT |
491 | * Return 0 if permission is granted. |
492 | * @inode_setattr: | |
493 | * Check permission before setting file attributes. Note that the kernel | |
494 | * call to notify_change is performed from several locations, whenever | |
495 | * file attributes change (such as when a file is truncated, chown/chmod | |
496 | * operations, transferring disk quotas, etc). | |
497 | * @dentry contains the dentry structure for the file. | |
498 | * @attr is the iattr structure containing the new file attributes. | |
499 | * Return 0 if permission is granted. | |
be6d3e56 KT |
500 | * @path_truncate: |
501 | * Check permission before truncating a file. | |
502 | * @path contains the path structure for the file. | |
be6d3e56 | 503 | * Return 0 if permission is granted. |
1da177e4 LT |
504 | * @inode_getattr: |
505 | * Check permission before obtaining file attributes. | |
506 | * @mnt is the vfsmount where the dentry was looked up | |
507 | * @dentry contains the dentry structure for the file. | |
508 | * Return 0 if permission is granted. | |
1da177e4 | 509 | * @inode_setxattr: |
7b41b173 EP |
510 | * Check permission before setting the extended attributes |
511 | * @value identified by @name for @dentry. | |
512 | * Return 0 if permission is granted. | |
1da177e4 | 513 | * @inode_post_setxattr: |
7b41b173 EP |
514 | * Update inode security field after successful setxattr operation. |
515 | * @value identified by @name for @dentry. | |
1da177e4 | 516 | * @inode_getxattr: |
7b41b173 EP |
517 | * Check permission before obtaining the extended attributes |
518 | * identified by @name for @dentry. | |
519 | * Return 0 if permission is granted. | |
1da177e4 | 520 | * @inode_listxattr: |
7b41b173 EP |
521 | * Check permission before obtaining the list of extended attribute |
522 | * names for @dentry. | |
523 | * Return 0 if permission is granted. | |
1da177e4 | 524 | * @inode_removexattr: |
7b41b173 EP |
525 | * Check permission before removing the extended attribute |
526 | * identified by @name for @dentry. | |
527 | * Return 0 if permission is granted. | |
1da177e4 | 528 | * @inode_getsecurity: |
42492594 DQ |
529 | * Retrieve a copy of the extended attribute representation of the |
530 | * security label associated with @name for @inode via @buffer. Note that | |
531 | * @name is the remainder of the attribute name after the security prefix | |
532 | * has been removed. @alloc is used to specify of the call should return a | |
533 | * value via the buffer or just the value length Return size of buffer on | |
534 | * success. | |
1da177e4 LT |
535 | * @inode_setsecurity: |
536 | * Set the security label associated with @name for @inode from the | |
537 | * extended attribute value @value. @size indicates the size of the | |
538 | * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0. | |
7b41b173 | 539 | * Note that @name is the remainder of the attribute name after the |
1da177e4 LT |
540 | * security. prefix has been removed. |
541 | * Return 0 on success. | |
542 | * @inode_listsecurity: | |
543 | * Copy the extended attribute names for the security labels | |
544 | * associated with @inode into @buffer. The maximum size of @buffer | |
545 | * is specified by @buffer_size. @buffer may be NULL to request | |
546 | * the size of the buffer required. | |
547 | * Returns number of bytes used/required on success. | |
b5376771 SH |
548 | * @inode_need_killpriv: |
549 | * Called when an inode has been changed. | |
550 | * @dentry is the dentry being changed. | |
551 | * Return <0 on error to abort the inode change operation. | |
552 | * Return 0 if inode_killpriv does not need to be called. | |
553 | * Return >0 if inode_killpriv does need to be called. | |
554 | * @inode_killpriv: | |
555 | * The setuid bit is being removed. Remove similar security labels. | |
556 | * Called with the dentry->d_inode->i_mutex held. | |
557 | * @dentry is the dentry being changed. | |
558 | * Return 0 on success. If error is returned, then the operation | |
559 | * causing setuid bit removal is failed. | |
8a076191 AD |
560 | * @inode_getsecid: |
561 | * Get the secid associated with the node. | |
562 | * @inode contains a pointer to the inode. | |
563 | * @secid contains a pointer to the location where result will be saved. | |
564 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
565 | * |
566 | * Security hooks for file operations | |
567 | * | |
568 | * @file_permission: | |
569 | * Check file permissions before accessing an open file. This hook is | |
570 | * called by various operations that read or write files. A security | |
571 | * module can use this hook to perform additional checking on these | |
572 | * operations, e.g. to revalidate permissions on use to support privilege | |
573 | * bracketing or policy changes. Notice that this hook is used when the | |
574 | * actual read/write operations are performed, whereas the | |
575 | * inode_security_ops hook is called when a file is opened (as well as | |
576 | * many other operations). | |
577 | * Caveat: Although this hook can be used to revalidate permissions for | |
578 | * various system call operations that read or write files, it does not | |
579 | * address the revalidation of permissions for memory-mapped files. | |
580 | * Security modules must handle this separately if they need such | |
581 | * revalidation. | |
582 | * @file contains the file structure being accessed. | |
583 | * @mask contains the requested permissions. | |
584 | * Return 0 if permission is granted. | |
585 | * @file_alloc_security: | |
586 | * Allocate and attach a security structure to the file->f_security field. | |
587 | * The security field is initialized to NULL when the structure is first | |
588 | * created. | |
589 | * @file contains the file structure to secure. | |
590 | * Return 0 if the hook is successful and permission is granted. | |
591 | * @file_free_security: | |
592 | * Deallocate and free any security structures stored in file->f_security. | |
593 | * @file contains the file structure being modified. | |
594 | * @file_ioctl: | |
595 | * @file contains the file structure. | |
596 | * @cmd contains the operation to perform. | |
597 | * @arg contains the operational arguments. | |
11be0b3c | 598 | * Check permission for an ioctl operation on @file. Note that @arg |
1da177e4 LT |
599 | * sometimes represents a user space pointer; in other cases, it may be a |
600 | * simple integer value. When @arg represents a user space pointer, it | |
601 | * should never be used by the security module. | |
602 | * Return 0 if permission is granted. | |
e5467859 AV |
603 | * @mmap_addr : |
604 | * Check permissions for a mmap operation at @addr. | |
605 | * @addr contains virtual address that will be used for the operation. | |
606 | * Return 0 if permission is granted. | |
607 | * @mmap_file : | |
1da177e4 LT |
608 | * Check permissions for a mmap operation. The @file may be NULL, e.g. |
609 | * if mapping anonymous memory. | |
610 | * @file contains the file structure for file to map (may be NULL). | |
611 | * @reqprot contains the protection requested by the application. | |
612 | * @prot contains the protection that will be applied by the kernel. | |
613 | * @flags contains the operational flags. | |
614 | * Return 0 if permission is granted. | |
615 | * @file_mprotect: | |
616 | * Check permissions before changing memory access permissions. | |
617 | * @vma contains the memory region to modify. | |
618 | * @reqprot contains the protection requested by the application. | |
619 | * @prot contains the protection that will be applied by the kernel. | |
620 | * Return 0 if permission is granted. | |
621 | * @file_lock: | |
622 | * Check permission before performing file locking operations. | |
623 | * Note: this hook mediates both flock and fcntl style locks. | |
624 | * @file contains the file structure. | |
625 | * @cmd contains the posix-translated lock operation to perform | |
626 | * (e.g. F_RDLCK, F_WRLCK). | |
627 | * Return 0 if permission is granted. | |
628 | * @file_fcntl: | |
629 | * Check permission before allowing the file operation specified by @cmd | |
11be0b3c | 630 | * from being performed on the file @file. Note that @arg sometimes |
1da177e4 LT |
631 | * represents a user space pointer; in other cases, it may be a simple |
632 | * integer value. When @arg represents a user space pointer, it should | |
633 | * never be used by the security module. | |
634 | * @file contains the file structure. | |
635 | * @cmd contains the operation to be performed. | |
636 | * @arg contains the operational arguments. | |
637 | * Return 0 if permission is granted. | |
638 | * @file_set_fowner: | |
639 | * Save owner security information (typically from current->security) in | |
640 | * file->f_security for later use by the send_sigiotask hook. | |
641 | * @file contains the file structure to update. | |
642 | * Return 0 on success. | |
643 | * @file_send_sigiotask: | |
644 | * Check permission for the file owner @fown to send SIGIO or SIGURG to the | |
645 | * process @tsk. Note that this hook is sometimes called from interrupt. | |
646 | * Note that the fown_struct, @fown, is never outside the context of a | |
647 | * struct file, so the file structure (and associated security information) | |
648 | * can always be obtained: | |
b385a144 | 649 | * container_of(fown, struct file, f_owner) |
7b41b173 | 650 | * @tsk contains the structure of task receiving signal. |
1da177e4 LT |
651 | * @fown contains the file owner information. |
652 | * @sig is the signal that will be sent. When 0, kernel sends SIGIO. | |
653 | * Return 0 if permission is granted. | |
654 | * @file_receive: | |
655 | * This hook allows security modules to control the ability of a process | |
656 | * to receive an open file descriptor via socket IPC. | |
657 | * @file contains the file structure being received. | |
658 | * Return 0 if permission is granted. | |
83d49856 | 659 | * @file_open |
788e7dd4 YN |
660 | * Save open-time permission checking state for later use upon |
661 | * file_permission, and recheck access if anything has changed | |
662 | * since inode_permission. | |
663 | * | |
1da177e4 LT |
664 | * Security hooks for task operations. |
665 | * | |
666 | * @task_create: | |
667 | * Check permission before creating a child process. See the clone(2) | |
668 | * manual page for definitions of the @clone_flags. | |
669 | * @clone_flags contains the flags indicating what should be shared. | |
670 | * Return 0 if permission is granted. | |
1a2a4d06 KC |
671 | * @task_free: |
672 | * @task task being freed | |
673 | * Handle release of task-related resources. (Note that this can be called | |
674 | * from interrupt context.) | |
ee18d64c DH |
675 | * @cred_alloc_blank: |
676 | * @cred points to the credentials. | |
677 | * @gfp indicates the atomicity of any memory allocations. | |
678 | * Only allocate sufficient memory and attach to @cred such that | |
679 | * cred_transfer() will not get ENOMEM. | |
f1752eec DH |
680 | * @cred_free: |
681 | * @cred points to the credentials. | |
682 | * Deallocate and clear the cred->security field in a set of credentials. | |
d84f4f99 DH |
683 | * @cred_prepare: |
684 | * @new points to the new credentials. | |
685 | * @old points to the original credentials. | |
686 | * @gfp indicates the atomicity of any memory allocations. | |
687 | * Prepare a new set of credentials by copying the data from the old set. | |
ee18d64c DH |
688 | * @cred_transfer: |
689 | * @new points to the new credentials. | |
690 | * @old points to the original credentials. | |
691 | * Transfer data from original creds to new creds | |
3a3b7ce9 DH |
692 | * @kernel_act_as: |
693 | * Set the credentials for a kernel service to act as (subjective context). | |
694 | * @new points to the credentials to be modified. | |
695 | * @secid specifies the security ID to be set | |
696 | * The current task must be the one that nominated @secid. | |
697 | * Return 0 if successful. | |
698 | * @kernel_create_files_as: | |
699 | * Set the file creation context in a set of credentials to be the same as | |
700 | * the objective context of the specified inode. | |
701 | * @new points to the credentials to be modified. | |
702 | * @inode points to the inode to use as a reference. | |
703 | * The current task must be the one that nominated @inode. | |
704 | * Return 0 if successful. | |
9188499c EP |
705 | * @kernel_module_request: |
706 | * Ability to trigger the kernel to automatically upcall to userspace for | |
707 | * userspace to load a kernel module with the given name. | |
dd8dbf2e | 708 | * @kmod_name name of the module requested by the kernel |
f322abf8 | 709 | * Return 0 if successful. |
2e72d51b KC |
710 | * @kernel_module_from_file: |
711 | * Load a kernel module from userspace. | |
712 | * @file contains the file structure pointing to the file containing | |
713 | * the kernel module to load. If the module is being loaded from a blob, | |
714 | * this argument will be NULL. | |
715 | * Return 0 if permission is granted. | |
d84f4f99 | 716 | * @task_fix_setuid: |
1da177e4 LT |
717 | * Update the module's state after setting one or more of the user |
718 | * identity attributes of the current process. The @flags parameter | |
719 | * indicates which of the set*uid system calls invoked this hook. If | |
d84f4f99 DH |
720 | * @new is the set of credentials that will be installed. Modifications |
721 | * should be made to this rather than to @current->cred. | |
722 | * @old is the set of credentials that are being replaces | |
1da177e4 LT |
723 | * @flags contains one of the LSM_SETID_* values. |
724 | * Return 0 on success. | |
1da177e4 LT |
725 | * @task_setpgid: |
726 | * Check permission before setting the process group identifier of the | |
727 | * process @p to @pgid. | |
728 | * @p contains the task_struct for process being modified. | |
729 | * @pgid contains the new pgid. | |
730 | * Return 0 if permission is granted. | |
731 | * @task_getpgid: | |
732 | * Check permission before getting the process group identifier of the | |
733 | * process @p. | |
734 | * @p contains the task_struct for the process. | |
735 | * Return 0 if permission is granted. | |
736 | * @task_getsid: | |
737 | * Check permission before getting the session identifier of the process | |
738 | * @p. | |
739 | * @p contains the task_struct for the process. | |
740 | * Return 0 if permission is granted. | |
f9008e4c DQ |
741 | * @task_getsecid: |
742 | * Retrieve the security identifier of the process @p. | |
743 | * @p contains the task_struct for the process and place is into @secid. | |
8a076191 AD |
744 | * In case of failure, @secid will be set to zero. |
745 | * | |
1da177e4 LT |
746 | * @task_setnice: |
747 | * Check permission before setting the nice value of @p to @nice. | |
748 | * @p contains the task_struct of process. | |
749 | * @nice contains the new nice value. | |
750 | * Return 0 if permission is granted. | |
03e68060 JM |
751 | * @task_setioprio |
752 | * Check permission before setting the ioprio value of @p to @ioprio. | |
753 | * @p contains the task_struct of process. | |
754 | * @ioprio contains the new ioprio value | |
755 | * Return 0 if permission is granted. | |
a1836a42 DQ |
756 | * @task_getioprio |
757 | * Check permission before getting the ioprio value of @p. | |
758 | * @p contains the task_struct of process. | |
759 | * Return 0 if permission is granted. | |
1da177e4 LT |
760 | * @task_setrlimit: |
761 | * Check permission before setting the resource limits of the current | |
762 | * process for @resource to @new_rlim. The old resource limit values can | |
763 | * be examined by dereferencing (current->signal->rlim + resource). | |
764 | * @resource contains the resource whose limit is being set. | |
765 | * @new_rlim contains the new limits for @resource. | |
766 | * Return 0 if permission is granted. | |
767 | * @task_setscheduler: | |
768 | * Check permission before setting scheduling policy and/or parameters of | |
769 | * process @p based on @policy and @lp. | |
770 | * @p contains the task_struct for process. | |
771 | * @policy contains the scheduling policy. | |
772 | * @lp contains the scheduling parameters. | |
773 | * Return 0 if permission is granted. | |
774 | * @task_getscheduler: | |
775 | * Check permission before obtaining scheduling information for process | |
776 | * @p. | |
777 | * @p contains the task_struct for process. | |
778 | * Return 0 if permission is granted. | |
35601547 DQ |
779 | * @task_movememory |
780 | * Check permission before moving memory owned by process @p. | |
781 | * @p contains the task_struct for process. | |
782 | * Return 0 if permission is granted. | |
1da177e4 LT |
783 | * @task_kill: |
784 | * Check permission before sending signal @sig to @p. @info can be NULL, | |
785 | * the constant 1, or a pointer to a siginfo structure. If @info is 1 or | |
786 | * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming | |
787 | * from the kernel and should typically be permitted. | |
788 | * SIGIO signals are handled separately by the send_sigiotask hook in | |
789 | * file_security_ops. | |
790 | * @p contains the task_struct for process. | |
791 | * @info contains the signal information. | |
792 | * @sig contains the signal value. | |
f9008e4c | 793 | * @secid contains the sid of the process where the signal originated |
1da177e4 LT |
794 | * Return 0 if permission is granted. |
795 | * @task_wait: | |
796 | * Check permission before allowing a process to reap a child process @p | |
797 | * and collect its status information. | |
798 | * @p contains the task_struct for process. | |
799 | * Return 0 if permission is granted. | |
800 | * @task_prctl: | |
801 | * Check permission before performing a process control operation on the | |
802 | * current process. | |
803 | * @option contains the operation. | |
804 | * @arg2 contains a argument. | |
805 | * @arg3 contains a argument. | |
806 | * @arg4 contains a argument. | |
807 | * @arg5 contains a argument. | |
d84f4f99 DH |
808 | * Return -ENOSYS if no-one wanted to handle this op, any other value to |
809 | * cause prctl() to return immediately with that value. | |
1da177e4 | 810 | * @task_to_inode: |
7b41b173 EP |
811 | * Set the security attributes for an inode based on an associated task's |
812 | * security attributes, e.g. for /proc/pid inodes. | |
1da177e4 LT |
813 | * @p contains the task_struct for the task. |
814 | * @inode contains the inode structure for the inode. | |
815 | * | |
816 | * Security hooks for Netlink messaging. | |
817 | * | |
818 | * @netlink_send: | |
819 | * Save security information for a netlink message so that permission | |
820 | * checking can be performed when the message is processed. The security | |
821 | * information can be saved using the eff_cap field of the | |
7b41b173 | 822 | * netlink_skb_parms structure. Also may be used to provide fine |
1da177e4 | 823 | * grained control over message transmission. |
11be0b3c | 824 | * @sk associated sock of task sending the message. |
1da177e4 LT |
825 | * @skb contains the sk_buff structure for the netlink message. |
826 | * Return 0 if the information was successfully saved and message | |
827 | * is allowed to be transmitted. | |
1da177e4 LT |
828 | * |
829 | * Security hooks for Unix domain networking. | |
830 | * | |
831 | * @unix_stream_connect: | |
832 | * Check permissions before establishing a Unix domain stream connection | |
833 | * between @sock and @other. | |
3610cda5 DM |
834 | * @sock contains the sock structure. |
835 | * @other contains the peer sock structure. | |
836 | * @newsk contains the new sock structure. | |
1da177e4 LT |
837 | * Return 0 if permission is granted. |
838 | * @unix_may_send: | |
839 | * Check permissions before connecting or sending datagrams from @sock to | |
840 | * @other. | |
841 | * @sock contains the socket structure. | |
fbe74e36 | 842 | * @other contains the peer socket structure. |
1da177e4 LT |
843 | * Return 0 if permission is granted. |
844 | * | |
845 | * The @unix_stream_connect and @unix_may_send hooks were necessary because | |
846 | * Linux provides an alternative to the conventional file name space for Unix | |
847 | * domain sockets. Whereas binding and connecting to sockets in the file name | |
848 | * space is mediated by the typical file permissions (and caught by the mknod | |
849 | * and permission hooks in inode_security_ops), binding and connecting to | |
850 | * sockets in the abstract name space is completely unmediated. Sufficient | |
851 | * control of Unix domain sockets in the abstract name space isn't possible | |
852 | * using only the socket layer hooks, since we need to know the actual target | |
853 | * socket, which is not looked up until we are inside the af_unix code. | |
854 | * | |
855 | * Security hooks for socket operations. | |
856 | * | |
857 | * @socket_create: | |
858 | * Check permissions prior to creating a new socket. | |
859 | * @family contains the requested protocol family. | |
860 | * @type contains the requested communications type. | |
861 | * @protocol contains the requested protocol. | |
862 | * @kern set to 1 if a kernel socket. | |
863 | * Return 0 if permission is granted. | |
864 | * @socket_post_create: | |
865 | * This hook allows a module to update or allocate a per-socket security | |
866 | * structure. Note that the security field was not added directly to the | |
867 | * socket structure, but rather, the socket security information is stored | |
868 | * in the associated inode. Typically, the inode alloc_security hook will | |
869 | * allocate and and attach security information to | |
870 | * sock->inode->i_security. This hook may be used to update the | |
871 | * sock->inode->i_security field with additional information that wasn't | |
872 | * available when the inode was allocated. | |
873 | * @sock contains the newly created socket structure. | |
874 | * @family contains the requested protocol family. | |
875 | * @type contains the requested communications type. | |
876 | * @protocol contains the requested protocol. | |
877 | * @kern set to 1 if a kernel socket. | |
878 | * @socket_bind: | |
879 | * Check permission before socket protocol layer bind operation is | |
880 | * performed and the socket @sock is bound to the address specified in the | |
881 | * @address parameter. | |
882 | * @sock contains the socket structure. | |
883 | * @address contains the address to bind to. | |
884 | * @addrlen contains the length of address. | |
7b41b173 | 885 | * Return 0 if permission is granted. |
1da177e4 LT |
886 | * @socket_connect: |
887 | * Check permission before socket protocol layer connect operation | |
888 | * attempts to connect socket @sock to a remote address, @address. | |
889 | * @sock contains the socket structure. | |
890 | * @address contains the address of remote endpoint. | |
891 | * @addrlen contains the length of address. | |
7b41b173 | 892 | * Return 0 if permission is granted. |
1da177e4 LT |
893 | * @socket_listen: |
894 | * Check permission before socket protocol layer listen operation. | |
895 | * @sock contains the socket structure. | |
896 | * @backlog contains the maximum length for the pending connection queue. | |
897 | * Return 0 if permission is granted. | |
898 | * @socket_accept: | |
899 | * Check permission before accepting a new connection. Note that the new | |
900 | * socket, @newsock, has been created and some information copied to it, | |
901 | * but the accept operation has not actually been performed. | |
902 | * @sock contains the listening socket structure. | |
903 | * @newsock contains the newly created server socket for connection. | |
904 | * Return 0 if permission is granted. | |
1da177e4 LT |
905 | * @socket_sendmsg: |
906 | * Check permission before transmitting a message to another socket. | |
907 | * @sock contains the socket structure. | |
908 | * @msg contains the message to be transmitted. | |
909 | * @size contains the size of message. | |
910 | * Return 0 if permission is granted. | |
911 | * @socket_recvmsg: | |
912 | * Check permission before receiving a message from a socket. | |
913 | * @sock contains the socket structure. | |
914 | * @msg contains the message structure. | |
915 | * @size contains the size of message structure. | |
916 | * @flags contains the operational flags. | |
7b41b173 | 917 | * Return 0 if permission is granted. |
1da177e4 LT |
918 | * @socket_getsockname: |
919 | * Check permission before the local address (name) of the socket object | |
920 | * @sock is retrieved. | |
921 | * @sock contains the socket structure. | |
922 | * Return 0 if permission is granted. | |
923 | * @socket_getpeername: | |
924 | * Check permission before the remote address (name) of a socket object | |
925 | * @sock is retrieved. | |
926 | * @sock contains the socket structure. | |
927 | * Return 0 if permission is granted. | |
928 | * @socket_getsockopt: | |
929 | * Check permissions before retrieving the options associated with socket | |
930 | * @sock. | |
931 | * @sock contains the socket structure. | |
932 | * @level contains the protocol level to retrieve option from. | |
933 | * @optname contains the name of option to retrieve. | |
934 | * Return 0 if permission is granted. | |
935 | * @socket_setsockopt: | |
936 | * Check permissions before setting the options associated with socket | |
937 | * @sock. | |
938 | * @sock contains the socket structure. | |
939 | * @level contains the protocol level to set options for. | |
940 | * @optname contains the name of the option to set. | |
7b41b173 | 941 | * Return 0 if permission is granted. |
1da177e4 LT |
942 | * @socket_shutdown: |
943 | * Checks permission before all or part of a connection on the socket | |
944 | * @sock is shut down. | |
945 | * @sock contains the socket structure. | |
946 | * @how contains the flag indicating how future sends and receives are handled. | |
947 | * Return 0 if permission is granted. | |
948 | * @socket_sock_rcv_skb: | |
949 | * Check permissions on incoming network packets. This hook is distinct | |
950 | * from Netfilter's IP input hooks since it is the first time that the | |
951 | * incoming sk_buff @skb has been associated with a particular socket, @sk. | |
0ed73185 | 952 | * Must not sleep inside this hook because some callers hold spinlocks. |
1da177e4 LT |
953 | * @sk contains the sock (not socket) associated with the incoming sk_buff. |
954 | * @skb contains the incoming network data. | |
6da34bae | 955 | * @socket_getpeersec_stream: |
1da177e4 | 956 | * This hook allows the security module to provide peer socket security |
6da34bae SH |
957 | * state for unix or connected tcp sockets to userspace via getsockopt |
958 | * SO_GETPEERSEC. For tcp sockets this can be meaningful if the | |
959 | * socket is associated with an ipsec SA. | |
1da177e4 LT |
960 | * @sock is the local socket. |
961 | * @optval userspace memory where the security state is to be copied. | |
962 | * @optlen userspace int where the module should copy the actual length | |
963 | * of the security state. | |
964 | * @len as input is the maximum length to copy to userspace provided | |
965 | * by the caller. | |
966 | * Return 0 if all is well, otherwise, typical getsockopt return | |
967 | * values. | |
6da34bae | 968 | * @socket_getpeersec_dgram: |
7b41b173 EP |
969 | * This hook allows the security module to provide peer socket security |
970 | * state for udp sockets on a per-packet basis to userspace via | |
971 | * getsockopt SO_GETPEERSEC. The application must first have indicated | |
972 | * the IP_PASSSEC option via getsockopt. It can then retrieve the | |
973 | * security state returned by this hook for a packet via the SCM_SECURITY | |
974 | * ancillary message type. | |
975 | * @skb is the skbuff for the packet being queried | |
976 | * @secdata is a pointer to a buffer in which to copy the security data | |
977 | * @seclen is the maximum length for @secdata | |
978 | * Return 0 on success, error on failure. | |
1da177e4 | 979 | * @sk_alloc_security: |
7b41b173 EP |
980 | * Allocate and attach a security structure to the sk->sk_security field, |
981 | * which is used to copy security attributes between local stream sockets. | |
1da177e4 LT |
982 | * @sk_free_security: |
983 | * Deallocate security structure. | |
892c141e VY |
984 | * @sk_clone_security: |
985 | * Clone/copy security structure. | |
beb8d13b VY |
986 | * @sk_getsecid: |
987 | * Retrieve the LSM-specific secid for the sock to enable caching of network | |
df71837d | 988 | * authorizations. |
4237c75c VY |
989 | * @sock_graft: |
990 | * Sets the socket's isec sid to the sock's sid. | |
991 | * @inet_conn_request: | |
992 | * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid. | |
993 | * @inet_csk_clone: | |
994 | * Sets the new child socket's sid to the openreq sid. | |
6b877699 | 995 | * @inet_conn_established: |
7b41b173 | 996 | * Sets the connection's peersid to the secmark on skb. |
2606fd1f EP |
997 | * @secmark_relabel_packet: |
998 | * check if the process should be allowed to relabel packets to the given secid | |
999 | * @security_secmark_refcount_inc | |
1000 | * tells the LSM to increment the number of secmark labeling rules loaded | |
1001 | * @security_secmark_refcount_dec | |
1002 | * tells the LSM to decrement the number of secmark labeling rules loaded | |
4237c75c VY |
1003 | * @req_classify_flow: |
1004 | * Sets the flow's sid to the openreq sid. | |
5dbbaf2d PM |
1005 | * @tun_dev_alloc_security: |
1006 | * This hook allows a module to allocate a security structure for a TUN | |
1007 | * device. | |
1008 | * @security pointer to a security structure pointer. | |
1009 | * Returns a zero on success, negative values on failure. | |
1010 | * @tun_dev_free_security: | |
1011 | * This hook allows a module to free the security structure for a TUN | |
1012 | * device. | |
1013 | * @security pointer to the TUN device's security structure | |
2b980dbd PM |
1014 | * @tun_dev_create: |
1015 | * Check permissions prior to creating a new TUN device. | |
5dbbaf2d PM |
1016 | * @tun_dev_attach_queue: |
1017 | * Check permissions prior to attaching to a TUN device queue. | |
1018 | * @security pointer to the TUN device's security structure. | |
2b980dbd | 1019 | * @tun_dev_attach: |
5dbbaf2d | 1020 | * This hook can be used by the module to update any security state |
2b980dbd PM |
1021 | * associated with the TUN device's sock structure. |
1022 | * @sk contains the existing sock structure. | |
5dbbaf2d PM |
1023 | * @security pointer to the TUN device's security structure. |
1024 | * @tun_dev_open: | |
1025 | * This hook can be used by the module to update any security state | |
1026 | * associated with the TUN device's security structure. | |
1027 | * @security pointer to the TUN devices's security structure. | |
6b07a24f PM |
1028 | * @skb_owned_by: |
1029 | * This hook sets the packet's owning sock. | |
1030 | * @skb is the packet. | |
1031 | * @sk the sock which owns the packet. | |
df71837d TJ |
1032 | * |
1033 | * Security hooks for XFRM operations. | |
1034 | * | |
1035 | * @xfrm_policy_alloc_security: | |
03e1ad7b PM |
1036 | * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy |
1037 | * Database used by the XFRM system. | |
df71837d TJ |
1038 | * @sec_ctx contains the security context information being provided by |
1039 | * the user-level policy update program (e.g., setkey). | |
e0d1caa7 | 1040 | * Allocate a security structure to the xp->security field; the security |
c1a856c9 | 1041 | * field is initialized to NULL when the xfrm_policy is allocated. |
df71837d | 1042 | * Return 0 if operation was successful (memory to allocate, legal context) |
52a4c640 | 1043 | * @gfp is to specify the context for the allocation |
df71837d | 1044 | * @xfrm_policy_clone_security: |
03e1ad7b PM |
1045 | * @old_ctx contains an existing xfrm_sec_ctx. |
1046 | * @new_ctxp contains a new xfrm_sec_ctx being cloned from old. | |
1047 | * Allocate a security structure in new_ctxp that contains the | |
1048 | * information from the old_ctx structure. | |
df71837d TJ |
1049 | * Return 0 if operation was successful (memory to allocate). |
1050 | * @xfrm_policy_free_security: | |
03e1ad7b | 1051 | * @ctx contains the xfrm_sec_ctx |
c8c05a8e CZ |
1052 | * Deallocate xp->security. |
1053 | * @xfrm_policy_delete_security: | |
03e1ad7b | 1054 | * @ctx contains the xfrm_sec_ctx. |
c8c05a8e | 1055 | * Authorize deletion of xp->security. |
2e5aa866 | 1056 | * @xfrm_state_alloc: |
df71837d TJ |
1057 | * @x contains the xfrm_state being added to the Security Association |
1058 | * Database by the XFRM system. | |
1059 | * @sec_ctx contains the security context information being provided by | |
1060 | * the user-level SA generation program (e.g., setkey or racoon). | |
e0d1caa7 VY |
1061 | * Allocate a security structure to the x->security field; the security |
1062 | * field is initialized to NULL when the xfrm_state is allocated. Set the | |
2e5aa866 PM |
1063 | * context to correspond to sec_ctx. Return 0 if operation was successful |
1064 | * (memory to allocate, legal context). | |
1065 | * @xfrm_state_alloc_acquire: | |
1066 | * @x contains the xfrm_state being added to the Security Association | |
1067 | * Database by the XFRM system. | |
1068 | * @polsec contains the policy's security context. | |
1069 | * @secid contains the secid from which to take the mls portion of the | |
1070 | * context. | |
1071 | * Allocate a security structure to the x->security field; the security | |
1072 | * field is initialized to NULL when the xfrm_state is allocated. Set the | |
1073 | * context to correspond to secid. Return 0 if operation was successful | |
1074 | * (memory to allocate, legal context). | |
df71837d TJ |
1075 | * @xfrm_state_free_security: |
1076 | * @x contains the xfrm_state. | |
c8c05a8e CZ |
1077 | * Deallocate x->security. |
1078 | * @xfrm_state_delete_security: | |
1079 | * @x contains the xfrm_state. | |
1080 | * Authorize deletion of x->security. | |
df71837d | 1081 | * @xfrm_policy_lookup: |
03e1ad7b | 1082 | * @ctx contains the xfrm_sec_ctx for which the access control is being |
df71837d | 1083 | * checked. |
e0d1caa7 | 1084 | * @fl_secid contains the flow security label that is used to authorize |
df71837d TJ |
1085 | * access to the policy xp. |
1086 | * @dir contains the direction of the flow (input or output). | |
e0d1caa7 | 1087 | * Check permission when a flow selects a xfrm_policy for processing |
df71837d TJ |
1088 | * XFRMs on a packet. The hook is called when selecting either a |
1089 | * per-socket policy or a generic xfrm policy. | |
5b368e61 VY |
1090 | * Return 0 if permission is granted, -ESRCH otherwise, or -errno |
1091 | * on other errors. | |
e0d1caa7 VY |
1092 | * @xfrm_state_pol_flow_match: |
1093 | * @x contains the state to match. | |
1094 | * @xp contains the policy to check for a match. | |
1095 | * @fl contains the flow to check for a match. | |
1096 | * Return 1 if there is a match. | |
e0d1caa7 VY |
1097 | * @xfrm_decode_session: |
1098 | * @skb points to skb to decode. | |
beb8d13b VY |
1099 | * @secid points to the flow key secid to set. |
1100 | * @ckall says if all xfrms used should be checked for same secid. | |
1101 | * Return 0 if ckall is zero or all xfrms used have the same secid. | |
1da177e4 | 1102 | * |
29db9190 DH |
1103 | * Security hooks affecting all Key Management operations |
1104 | * | |
1105 | * @key_alloc: | |
1106 | * Permit allocation of a key and assign security data. Note that key does | |
1107 | * not have a serial number assigned at this point. | |
1108 | * @key points to the key. | |
7e047ef5 | 1109 | * @flags is the allocation flags |
29db9190 DH |
1110 | * Return 0 if permission is granted, -ve error otherwise. |
1111 | * @key_free: | |
1112 | * Notification of destruction; free security data. | |
1113 | * @key points to the key. | |
1114 | * No return value. | |
1115 | * @key_permission: | |
1116 | * See whether a specific operational right is granted to a process on a | |
7b41b173 | 1117 | * key. |
29db9190 | 1118 | * @key_ref refers to the key (key pointer + possession attribute bit). |
d84f4f99 | 1119 | * @cred points to the credentials to provide the context against which to |
7b41b173 | 1120 | * evaluate the security data on the key. |
29db9190 | 1121 | * @perm describes the combination of permissions required of this key. |
ad9c2b04 | 1122 | * Return 0 if permission is granted, -ve error otherwise. |
70a5bb72 DH |
1123 | * @key_getsecurity: |
1124 | * Get a textual representation of the security context attached to a key | |
1125 | * for the purposes of honouring KEYCTL_GETSECURITY. This function | |
1126 | * allocates the storage for the NUL-terminated string and the caller | |
1127 | * should free it. | |
1128 | * @key points to the key to be queried. | |
1129 | * @_buffer points to a pointer that should be set to point to the | |
11be0b3c | 1130 | * resulting string (if no label or an error occurs). |
70a5bb72 | 1131 | * Return the length of the string (including terminating NUL) or -ve if |
11be0b3c | 1132 | * an error. |
70a5bb72 | 1133 | * May also return 0 (and a NULL buffer pointer) if there is no label. |
29db9190 | 1134 | * |
1da177e4 LT |
1135 | * Security hooks affecting all System V IPC operations. |
1136 | * | |
1137 | * @ipc_permission: | |
1138 | * Check permissions for access to IPC | |
1139 | * @ipcp contains the kernel IPC permission structure | |
1140 | * @flag contains the desired (requested) permission set | |
1141 | * Return 0 if permission is granted. | |
8a076191 AD |
1142 | * @ipc_getsecid: |
1143 | * Get the secid associated with the ipc object. | |
1144 | * @ipcp contains the kernel IPC permission structure. | |
1145 | * @secid contains a pointer to the location where result will be saved. | |
1146 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
1147 | * |
1148 | * Security hooks for individual messages held in System V IPC message queues | |
1149 | * @msg_msg_alloc_security: | |
1150 | * Allocate and attach a security structure to the msg->security field. | |
1151 | * The security field is initialized to NULL when the structure is first | |
1152 | * created. | |
1153 | * @msg contains the message structure to be modified. | |
1154 | * Return 0 if operation was successful and permission is granted. | |
1155 | * @msg_msg_free_security: | |
1156 | * Deallocate the security structure for this message. | |
1157 | * @msg contains the message structure to be modified. | |
1158 | * | |
1159 | * Security hooks for System V IPC Message Queues | |
1160 | * | |
1161 | * @msg_queue_alloc_security: | |
1162 | * Allocate and attach a security structure to the | |
1163 | * msq->q_perm.security field. The security field is initialized to | |
1164 | * NULL when the structure is first created. | |
1165 | * @msq contains the message queue structure to be modified. | |
1166 | * Return 0 if operation was successful and permission is granted. | |
1167 | * @msg_queue_free_security: | |
1168 | * Deallocate security structure for this message queue. | |
1169 | * @msq contains the message queue structure to be modified. | |
1170 | * @msg_queue_associate: | |
1171 | * Check permission when a message queue is requested through the | |
1172 | * msgget system call. This hook is only called when returning the | |
1173 | * message queue identifier for an existing message queue, not when a | |
1174 | * new message queue is created. | |
1175 | * @msq contains the message queue to act upon. | |
1176 | * @msqflg contains the operation control flags. | |
1177 | * Return 0 if permission is granted. | |
1178 | * @msg_queue_msgctl: | |
1179 | * Check permission when a message control operation specified by @cmd | |
1180 | * is to be performed on the message queue @msq. | |
1181 | * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO. | |
1182 | * @msq contains the message queue to act upon. May be NULL. | |
1183 | * @cmd contains the operation to be performed. | |
7b41b173 | 1184 | * Return 0 if permission is granted. |
1da177e4 LT |
1185 | * @msg_queue_msgsnd: |
1186 | * Check permission before a message, @msg, is enqueued on the message | |
1187 | * queue, @msq. | |
1188 | * @msq contains the message queue to send message to. | |
1189 | * @msg contains the message to be enqueued. | |
1190 | * @msqflg contains operational flags. | |
1191 | * Return 0 if permission is granted. | |
1192 | * @msg_queue_msgrcv: | |
1193 | * Check permission before a message, @msg, is removed from the message | |
7b41b173 EP |
1194 | * queue, @msq. The @target task structure contains a pointer to the |
1195 | * process that will be receiving the message (not equal to the current | |
1da177e4 LT |
1196 | * process when inline receives are being performed). |
1197 | * @msq contains the message queue to retrieve message from. | |
1198 | * @msg contains the message destination. | |
1199 | * @target contains the task structure for recipient process. | |
1200 | * @type contains the type of message requested. | |
1201 | * @mode contains the operational flags. | |
1202 | * Return 0 if permission is granted. | |
1203 | * | |
1204 | * Security hooks for System V Shared Memory Segments | |
1205 | * | |
1206 | * @shm_alloc_security: | |
1207 | * Allocate and attach a security structure to the shp->shm_perm.security | |
1208 | * field. The security field is initialized to NULL when the structure is | |
1209 | * first created. | |
1210 | * @shp contains the shared memory structure to be modified. | |
1211 | * Return 0 if operation was successful and permission is granted. | |
1212 | * @shm_free_security: | |
1213 | * Deallocate the security struct for this memory segment. | |
1214 | * @shp contains the shared memory structure to be modified. | |
1215 | * @shm_associate: | |
1216 | * Check permission when a shared memory region is requested through the | |
1217 | * shmget system call. This hook is only called when returning the shared | |
1218 | * memory region identifier for an existing region, not when a new shared | |
1219 | * memory region is created. | |
1220 | * @shp contains the shared memory structure to be modified. | |
1221 | * @shmflg contains the operation control flags. | |
1222 | * Return 0 if permission is granted. | |
1223 | * @shm_shmctl: | |
1224 | * Check permission when a shared memory control operation specified by | |
1225 | * @cmd is to be performed on the shared memory region @shp. | |
1226 | * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO. | |
1227 | * @shp contains shared memory structure to be modified. | |
1228 | * @cmd contains the operation to be performed. | |
1229 | * Return 0 if permission is granted. | |
1230 | * @shm_shmat: | |
1231 | * Check permissions prior to allowing the shmat system call to attach the | |
1232 | * shared memory segment @shp to the data segment of the calling process. | |
1233 | * The attaching address is specified by @shmaddr. | |
1234 | * @shp contains the shared memory structure to be modified. | |
1235 | * @shmaddr contains the address to attach memory region to. | |
1236 | * @shmflg contains the operational flags. | |
1237 | * Return 0 if permission is granted. | |
1238 | * | |
1239 | * Security hooks for System V Semaphores | |
1240 | * | |
1241 | * @sem_alloc_security: | |
1242 | * Allocate and attach a security structure to the sma->sem_perm.security | |
1243 | * field. The security field is initialized to NULL when the structure is | |
1244 | * first created. | |
1245 | * @sma contains the semaphore structure | |
1246 | * Return 0 if operation was successful and permission is granted. | |
1247 | * @sem_free_security: | |
1248 | * deallocate security struct for this semaphore | |
1249 | * @sma contains the semaphore structure. | |
1250 | * @sem_associate: | |
1251 | * Check permission when a semaphore is requested through the semget | |
1252 | * system call. This hook is only called when returning the semaphore | |
1253 | * identifier for an existing semaphore, not when a new one must be | |
1254 | * created. | |
1255 | * @sma contains the semaphore structure. | |
1256 | * @semflg contains the operation control flags. | |
1257 | * Return 0 if permission is granted. | |
1258 | * @sem_semctl: | |
1259 | * Check permission when a semaphore operation specified by @cmd is to be | |
7b41b173 | 1260 | * performed on the semaphore @sma. The @sma may be NULL, e.g. for |
1da177e4 LT |
1261 | * IPC_INFO or SEM_INFO. |
1262 | * @sma contains the semaphore structure. May be NULL. | |
1263 | * @cmd contains the operation to be performed. | |
1264 | * Return 0 if permission is granted. | |
1265 | * @sem_semop | |
1266 | * Check permissions before performing operations on members of the | |
7b41b173 EP |
1267 | * semaphore set @sma. If the @alter flag is nonzero, the semaphore set |
1268 | * may be modified. | |
1da177e4 LT |
1269 | * @sma contains the semaphore structure. |
1270 | * @sops contains the operations to perform. | |
1271 | * @nsops contains the number of operations to perform. | |
1272 | * @alter contains the flag indicating whether changes are to be made. | |
1273 | * Return 0 if permission is granted. | |
1274 | * | |
9e48858f | 1275 | * @ptrace_access_check: |
5cd9c58f | 1276 | * Check permission before allowing the current process to trace the |
1da177e4 LT |
1277 | * @child process. |
1278 | * Security modules may also want to perform a process tracing check | |
1279 | * during an execve in the set_security or apply_creds hooks of | |
d84f4f99 | 1280 | * tracing check during an execve in the bprm_set_creds hook of |
1da177e4 LT |
1281 | * binprm_security_ops if the process is being traced and its security |
1282 | * attributes would be changed by the execve. | |
5cd9c58f | 1283 | * @child contains the task_struct structure for the target process. |
006ebb40 | 1284 | * @mode contains the PTRACE_MODE flags indicating the form of access. |
1da177e4 | 1285 | * Return 0 if permission is granted. |
5cd9c58f DH |
1286 | * @ptrace_traceme: |
1287 | * Check that the @parent process has sufficient permission to trace the | |
1288 | * current process before allowing the current process to present itself | |
1289 | * to the @parent process for tracing. | |
5cd9c58f DH |
1290 | * @parent contains the task_struct structure for debugger process. |
1291 | * Return 0 if permission is granted. | |
1da177e4 LT |
1292 | * @capget: |
1293 | * Get the @effective, @inheritable, and @permitted capability sets for | |
1294 | * the @target process. The hook may also perform permission checking to | |
1295 | * determine if the current process is allowed to see the capability sets | |
1296 | * of the @target process. | |
1297 | * @target contains the task_struct structure for target process. | |
1298 | * @effective contains the effective capability set. | |
1299 | * @inheritable contains the inheritable capability set. | |
1300 | * @permitted contains the permitted capability set. | |
1301 | * Return 0 if the capability sets were successfully obtained. | |
d84f4f99 | 1302 | * @capset: |
1da177e4 | 1303 | * Set the @effective, @inheritable, and @permitted capability sets for |
1cdcbec1 | 1304 | * the current process. |
d84f4f99 DH |
1305 | * @new contains the new credentials structure for target process. |
1306 | * @old contains the current credentials structure for target process. | |
1da177e4 LT |
1307 | * @effective contains the effective capability set. |
1308 | * @inheritable contains the inheritable capability set. | |
1309 | * @permitted contains the permitted capability set. | |
d84f4f99 | 1310 | * Return 0 and update @new if permission is granted. |
12b5989b | 1311 | * @capable: |
3699c53c DH |
1312 | * Check whether the @tsk process has the @cap capability in the indicated |
1313 | * credentials. | |
3699c53c | 1314 | * @cred contains the credentials to use. |
11be0b3c | 1315 | * @ns contains the user namespace we want the capability in |
12b5989b | 1316 | * @cap contains the capability <include/linux/capability.h>. |
3699c53c | 1317 | * @audit: Whether to write an audit message or not |
12b5989b | 1318 | * Return 0 if the capability is granted for @tsk. |
1da177e4 LT |
1319 | * @syslog: |
1320 | * Check permission before accessing the kernel message ring or changing | |
1321 | * logging to the console. | |
7b41b173 | 1322 | * See the syslog(2) manual page for an explanation of the @type values. |
1da177e4 | 1323 | * @type contains the type of action. |
00234592 | 1324 | * @from_file indicates the context of action (if it came from /proc). |
1da177e4 LT |
1325 | * Return 0 if permission is granted. |
1326 | * @settime: | |
1327 | * Check permission to change the system time. | |
1328 | * struct timespec and timezone are defined in include/linux/time.h | |
1329 | * @ts contains new time | |
1330 | * @tz contains new timezone | |
1331 | * Return 0 if permission is granted. | |
1332 | * @vm_enough_memory: | |
1333 | * Check permissions for allocating a new virtual mapping. | |
34b4e4aa | 1334 | * @mm contains the mm struct it is being added to. |
7b41b173 | 1335 | * @pages contains the number of pages. |
1da177e4 LT |
1336 | * Return 0 if permission is granted. |
1337 | * | |
746df9b5 DQ |
1338 | * @ismaclabel: |
1339 | * Check if the extended attribute specified by @name | |
1340 | * represents a MAC label. Returns 1 if name is a MAC | |
1341 | * attribute otherwise returns 0. | |
1342 | * @name full extended attribute name to check against | |
1343 | * LSM as a MAC label. | |
1344 | * | |
dc49c1f9 | 1345 | * @secid_to_secctx: |
d5630b9d EP |
1346 | * Convert secid to security context. If secdata is NULL the length of |
1347 | * the result will be returned in seclen, but no secdata will be returned. | |
1348 | * This does mean that the length could change between calls to check the | |
1349 | * length and the next call which actually allocates and returns the secdata. | |
dc49c1f9 CZ |
1350 | * @secid contains the security ID. |
1351 | * @secdata contains the pointer that stores the converted security context. | |
d5630b9d | 1352 | * @seclen pointer which contains the length of the data |
63cb3449 | 1353 | * @secctx_to_secid: |
7b41b173 EP |
1354 | * Convert security context to secid. |
1355 | * @secid contains the pointer to the generated security ID. | |
1356 | * @secdata contains the security context. | |
dc49c1f9 CZ |
1357 | * |
1358 | * @release_secctx: | |
1359 | * Release the security context. | |
1360 | * @secdata contains the security context. | |
1361 | * @seclen contains the length of the security context. | |
1362 | * | |
03d37d25 AD |
1363 | * Security hooks for Audit |
1364 | * | |
1365 | * @audit_rule_init: | |
1366 | * Allocate and initialize an LSM audit rule structure. | |
1367 | * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h | |
1368 | * @op contains the operator the rule uses. | |
1369 | * @rulestr contains the context where the rule will be applied to. | |
1370 | * @lsmrule contains a pointer to receive the result. | |
1371 | * Return 0 if @lsmrule has been successfully set, | |
1372 | * -EINVAL in case of an invalid rule. | |
1373 | * | |
1374 | * @audit_rule_known: | |
1375 | * Specifies whether given @rule contains any fields related to current LSM. | |
1376 | * @rule contains the audit rule of interest. | |
1377 | * Return 1 in case of relation found, 0 otherwise. | |
1378 | * | |
1379 | * @audit_rule_match: | |
1380 | * Determine if given @secid matches a rule previously approved | |
1381 | * by @audit_rule_known. | |
1382 | * @secid contains the security id in question. | |
1383 | * @field contains the field which relates to current LSM. | |
1384 | * @op contains the operator that will be used for matching. | |
1385 | * @rule points to the audit rule that will be checked against. | |
1386 | * @actx points to the audit context associated with the check. | |
1387 | * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure. | |
1388 | * | |
1389 | * @audit_rule_free: | |
1390 | * Deallocate the LSM audit rule structure previously allocated by | |
1391 | * audit_rule_init. | |
1392 | * @rule contains the allocated rule | |
1393 | * | |
1ee65e37 DQ |
1394 | * @inode_notifysecctx: |
1395 | * Notify the security module of what the security context of an inode | |
1396 | * should be. Initializes the incore security context managed by the | |
1397 | * security module for this inode. Example usage: NFS client invokes | |
1398 | * this hook to initialize the security context in its incore inode to the | |
1399 | * value provided by the server for the file when the server returned the | |
1400 | * file's attributes to the client. | |
1401 | * | |
1402 | * Must be called with inode->i_mutex locked. | |
1403 | * | |
1404 | * @inode we wish to set the security context of. | |
1405 | * @ctx contains the string which we wish to set in the inode. | |
1406 | * @ctxlen contains the length of @ctx. | |
1407 | * | |
1408 | * @inode_setsecctx: | |
1409 | * Change the security context of an inode. Updates the | |
1410 | * incore security context managed by the security module and invokes the | |
1411 | * fs code as needed (via __vfs_setxattr_noperm) to update any backing | |
1412 | * xattrs that represent the context. Example usage: NFS server invokes | |
1413 | * this hook to change the security context in its incore inode and on the | |
1414 | * backing filesystem to a value provided by the client on a SETATTR | |
1415 | * operation. | |
1416 | * | |
1417 | * Must be called with inode->i_mutex locked. | |
1418 | * | |
1419 | * @dentry contains the inode we wish to set the security context of. | |
1420 | * @ctx contains the string which we wish to set in the inode. | |
1421 | * @ctxlen contains the length of @ctx. | |
1422 | * | |
1423 | * @inode_getsecctx: | |
4726e8fa BF |
1424 | * On success, returns 0 and fills out @ctx and @ctxlen with the security |
1425 | * context for the given @inode. | |
1ee65e37 | 1426 | * |
fc9ff9b7 | 1427 | * @inode we wish to get the security context of. |
1ee65e37 DQ |
1428 | * @ctx is a pointer in which to place the allocated security context. |
1429 | * @ctxlen points to the place to put the length of @ctx. | |
1da177e4 LT |
1430 | * This is the main security structure. |
1431 | */ | |
1432 | struct security_operations { | |
076c54c5 AD |
1433 | char name[SECURITY_NAME_MAX + 1]; |
1434 | ||
9e48858f | 1435 | int (*ptrace_access_check) (struct task_struct *child, unsigned int mode); |
5cd9c58f | 1436 | int (*ptrace_traceme) (struct task_struct *parent); |
7b41b173 EP |
1437 | int (*capget) (struct task_struct *target, |
1438 | kernel_cap_t *effective, | |
1439 | kernel_cap_t *inheritable, kernel_cap_t *permitted); | |
d84f4f99 DH |
1440 | int (*capset) (struct cred *new, |
1441 | const struct cred *old, | |
1442 | const kernel_cap_t *effective, | |
1443 | const kernel_cap_t *inheritable, | |
1444 | const kernel_cap_t *permitted); | |
6a9de491 EP |
1445 | int (*capable) (const struct cred *cred, struct user_namespace *ns, |
1446 | int cap, int audit); | |
7b41b173 EP |
1447 | int (*quotactl) (int cmds, int type, int id, struct super_block *sb); |
1448 | int (*quota_on) (struct dentry *dentry); | |
12b3052c | 1449 | int (*syslog) (int type); |
1e6d7679 | 1450 | int (*settime) (const struct timespec *ts, const struct timezone *tz); |
34b4e4aa | 1451 | int (*vm_enough_memory) (struct mm_struct *mm, long pages); |
1da177e4 | 1452 | |
a6f76f23 | 1453 | int (*bprm_set_creds) (struct linux_binprm *bprm); |
7b41b173 EP |
1454 | int (*bprm_check_security) (struct linux_binprm *bprm); |
1455 | int (*bprm_secureexec) (struct linux_binprm *bprm); | |
a6f76f23 DH |
1456 | void (*bprm_committing_creds) (struct linux_binprm *bprm); |
1457 | void (*bprm_committed_creds) (struct linux_binprm *bprm); | |
7b41b173 EP |
1458 | |
1459 | int (*sb_alloc_security) (struct super_block *sb); | |
1460 | void (*sb_free_security) (struct super_block *sb); | |
1461 | int (*sb_copy_data) (char *orig, char *copy); | |
ff36fe2c | 1462 | int (*sb_remount) (struct super_block *sb, void *data); |
12204e24 | 1463 | int (*sb_kern_mount) (struct super_block *sb, int flags, void *data); |
2069f457 | 1464 | int (*sb_show_options) (struct seq_file *m, struct super_block *sb); |
726c3342 | 1465 | int (*sb_statfs) (struct dentry *dentry); |
808d4e3c AV |
1466 | int (*sb_mount) (const char *dev_name, struct path *path, |
1467 | const char *type, unsigned long flags, void *data); | |
7b41b173 | 1468 | int (*sb_umount) (struct vfsmount *mnt, int flags); |
b5266eb4 AV |
1469 | int (*sb_pivotroot) (struct path *old_path, |
1470 | struct path *new_path); | |
e0007529 | 1471 | int (*sb_set_mnt_opts) (struct super_block *sb, |
649f6e77 DQ |
1472 | struct security_mnt_opts *opts, |
1473 | unsigned long kern_flags, | |
1474 | unsigned long *set_kern_flags); | |
094f7b69 | 1475 | int (*sb_clone_mnt_opts) (const struct super_block *oldsb, |
c9180a57 | 1476 | struct super_block *newsb); |
e0007529 | 1477 | int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts); |
d47be3df DQ |
1478 | int (*dentry_init_security) (struct dentry *dentry, int mode, |
1479 | struct qstr *name, void **ctx, | |
1480 | u32 *ctxlen); | |
1481 | ||
1da177e4 | 1482 | |
be6d3e56 KT |
1483 | #ifdef CONFIG_SECURITY_PATH |
1484 | int (*path_unlink) (struct path *dir, struct dentry *dentry); | |
4572befe | 1485 | int (*path_mkdir) (struct path *dir, struct dentry *dentry, umode_t mode); |
be6d3e56 | 1486 | int (*path_rmdir) (struct path *dir, struct dentry *dentry); |
04fc66e7 | 1487 | int (*path_mknod) (struct path *dir, struct dentry *dentry, umode_t mode, |
be6d3e56 | 1488 | unsigned int dev); |
ea0d3ab2 | 1489 | int (*path_truncate) (struct path *path); |
be6d3e56 KT |
1490 | int (*path_symlink) (struct path *dir, struct dentry *dentry, |
1491 | const char *old_name); | |
1492 | int (*path_link) (struct dentry *old_dentry, struct path *new_dir, | |
1493 | struct dentry *new_dentry); | |
1494 | int (*path_rename) (struct path *old_dir, struct dentry *old_dentry, | |
1495 | struct path *new_dir, struct dentry *new_dentry); | |
cdcf116d | 1496 | int (*path_chmod) (struct path *path, umode_t mode); |
d2b31ca6 | 1497 | int (*path_chown) (struct path *path, kuid_t uid, kgid_t gid); |
8b8efb44 | 1498 | int (*path_chroot) (struct path *path); |
be6d3e56 KT |
1499 | #endif |
1500 | ||
7b41b173 | 1501 | int (*inode_alloc_security) (struct inode *inode); |
1da177e4 | 1502 | void (*inode_free_security) (struct inode *inode); |
5e41ff9e | 1503 | int (*inode_init_security) (struct inode *inode, struct inode *dir, |
9548906b | 1504 | const struct qstr *qstr, const char **name, |
2a7dba39 | 1505 | void **value, size_t *len); |
1da177e4 | 1506 | int (*inode_create) (struct inode *dir, |
4acdaf27 | 1507 | struct dentry *dentry, umode_t mode); |
1da177e4 | 1508 | int (*inode_link) (struct dentry *old_dentry, |
7b41b173 | 1509 | struct inode *dir, struct dentry *new_dentry); |
1da177e4 LT |
1510 | int (*inode_unlink) (struct inode *dir, struct dentry *dentry); |
1511 | int (*inode_symlink) (struct inode *dir, | |
7b41b173 | 1512 | struct dentry *dentry, const char *old_name); |
18bb1db3 | 1513 | int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, umode_t mode); |
1da177e4 LT |
1514 | int (*inode_rmdir) (struct inode *dir, struct dentry *dentry); |
1515 | int (*inode_mknod) (struct inode *dir, struct dentry *dentry, | |
1a67aafb | 1516 | umode_t mode, dev_t dev); |
1da177e4 | 1517 | int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry, |
7b41b173 | 1518 | struct inode *new_dir, struct dentry *new_dentry); |
1da177e4 LT |
1519 | int (*inode_readlink) (struct dentry *dentry); |
1520 | int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd); | |
e74f71eb | 1521 | int (*inode_permission) (struct inode *inode, int mask); |
1da177e4 LT |
1522 | int (*inode_setattr) (struct dentry *dentry, struct iattr *attr); |
1523 | int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry); | |
8f0cfa52 DH |
1524 | int (*inode_setxattr) (struct dentry *dentry, const char *name, |
1525 | const void *value, size_t size, int flags); | |
1526 | void (*inode_post_setxattr) (struct dentry *dentry, const char *name, | |
1527 | const void *value, size_t size, int flags); | |
1528 | int (*inode_getxattr) (struct dentry *dentry, const char *name); | |
1da177e4 | 1529 | int (*inode_listxattr) (struct dentry *dentry); |
8f0cfa52 | 1530 | int (*inode_removexattr) (struct dentry *dentry, const char *name); |
b5376771 SH |
1531 | int (*inode_need_killpriv) (struct dentry *dentry); |
1532 | int (*inode_killpriv) (struct dentry *dentry); | |
7b41b173 EP |
1533 | int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc); |
1534 | int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags); | |
1535 | int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size); | |
1536 | void (*inode_getsecid) (const struct inode *inode, u32 *secid); | |
1537 | ||
1538 | int (*file_permission) (struct file *file, int mask); | |
1539 | int (*file_alloc_security) (struct file *file); | |
1540 | void (*file_free_security) (struct file *file); | |
1541 | int (*file_ioctl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1542 | unsigned long arg); |
e5467859 AV |
1543 | int (*mmap_addr) (unsigned long addr); |
1544 | int (*mmap_file) (struct file *file, | |
ed032189 | 1545 | unsigned long reqprot, unsigned long prot, |
e5467859 | 1546 | unsigned long flags); |
7b41b173 | 1547 | int (*file_mprotect) (struct vm_area_struct *vma, |
1da177e4 LT |
1548 | unsigned long reqprot, |
1549 | unsigned long prot); | |
7b41b173 EP |
1550 | int (*file_lock) (struct file *file, unsigned int cmd); |
1551 | int (*file_fcntl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1552 | unsigned long arg); |
7b41b173 EP |
1553 | int (*file_set_fowner) (struct file *file); |
1554 | int (*file_send_sigiotask) (struct task_struct *tsk, | |
1555 | struct fown_struct *fown, int sig); | |
1556 | int (*file_receive) (struct file *file); | |
83d49856 | 1557 | int (*file_open) (struct file *file, const struct cred *cred); |
1da177e4 LT |
1558 | |
1559 | int (*task_create) (unsigned long clone_flags); | |
1a2a4d06 | 1560 | void (*task_free) (struct task_struct *task); |
ee18d64c | 1561 | int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp); |
f1752eec | 1562 | void (*cred_free) (struct cred *cred); |
d84f4f99 DH |
1563 | int (*cred_prepare)(struct cred *new, const struct cred *old, |
1564 | gfp_t gfp); | |
ee18d64c | 1565 | void (*cred_transfer)(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1566 | int (*kernel_act_as)(struct cred *new, u32 secid); |
1567 | int (*kernel_create_files_as)(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1568 | int (*kernel_module_request)(char *kmod_name); |
2e72d51b | 1569 | int (*kernel_module_from_file)(struct file *file); |
d84f4f99 DH |
1570 | int (*task_fix_setuid) (struct cred *new, const struct cred *old, |
1571 | int flags); | |
7b41b173 EP |
1572 | int (*task_setpgid) (struct task_struct *p, pid_t pgid); |
1573 | int (*task_getpgid) (struct task_struct *p); | |
1574 | int (*task_getsid) (struct task_struct *p); | |
1575 | void (*task_getsecid) (struct task_struct *p, u32 *secid); | |
7b41b173 EP |
1576 | int (*task_setnice) (struct task_struct *p, int nice); |
1577 | int (*task_setioprio) (struct task_struct *p, int ioprio); | |
1578 | int (*task_getioprio) (struct task_struct *p); | |
8fd00b4d JS |
1579 | int (*task_setrlimit) (struct task_struct *p, unsigned int resource, |
1580 | struct rlimit *new_rlim); | |
b0ae1981 | 1581 | int (*task_setscheduler) (struct task_struct *p); |
7b41b173 EP |
1582 | int (*task_getscheduler) (struct task_struct *p); |
1583 | int (*task_movememory) (struct task_struct *p); | |
1584 | int (*task_kill) (struct task_struct *p, | |
1585 | struct siginfo *info, int sig, u32 secid); | |
1586 | int (*task_wait) (struct task_struct *p); | |
1da177e4 LT |
1587 | int (*task_prctl) (int option, unsigned long arg2, |
1588 | unsigned long arg3, unsigned long arg4, | |
d84f4f99 | 1589 | unsigned long arg5); |
7b41b173 | 1590 | void (*task_to_inode) (struct task_struct *p, struct inode *inode); |
1da177e4 | 1591 | |
7b41b173 | 1592 | int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag); |
8a076191 | 1593 | void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid); |
1da177e4 | 1594 | |
7b41b173 EP |
1595 | int (*msg_msg_alloc_security) (struct msg_msg *msg); |
1596 | void (*msg_msg_free_security) (struct msg_msg *msg); | |
1597 | ||
1598 | int (*msg_queue_alloc_security) (struct msg_queue *msq); | |
1599 | void (*msg_queue_free_security) (struct msg_queue *msq); | |
1600 | int (*msg_queue_associate) (struct msg_queue *msq, int msqflg); | |
1601 | int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd); | |
1602 | int (*msg_queue_msgsnd) (struct msg_queue *msq, | |
1603 | struct msg_msg *msg, int msqflg); | |
1604 | int (*msg_queue_msgrcv) (struct msg_queue *msq, | |
1605 | struct msg_msg *msg, | |
1606 | struct task_struct *target, | |
1da177e4 LT |
1607 | long type, int mode); |
1608 | ||
7b41b173 EP |
1609 | int (*shm_alloc_security) (struct shmid_kernel *shp); |
1610 | void (*shm_free_security) (struct shmid_kernel *shp); | |
1611 | int (*shm_associate) (struct shmid_kernel *shp, int shmflg); | |
1612 | int (*shm_shmctl) (struct shmid_kernel *shp, int cmd); | |
1613 | int (*shm_shmat) (struct shmid_kernel *shp, | |
1da177e4 LT |
1614 | char __user *shmaddr, int shmflg); |
1615 | ||
7b41b173 EP |
1616 | int (*sem_alloc_security) (struct sem_array *sma); |
1617 | void (*sem_free_security) (struct sem_array *sma); | |
1618 | int (*sem_associate) (struct sem_array *sma, int semflg); | |
1619 | int (*sem_semctl) (struct sem_array *sma, int cmd); | |
1620 | int (*sem_semop) (struct sem_array *sma, | |
1621 | struct sembuf *sops, unsigned nsops, int alter); | |
1da177e4 | 1622 | |
7b41b173 | 1623 | int (*netlink_send) (struct sock *sk, struct sk_buff *skb); |
1da177e4 | 1624 | |
1da177e4 LT |
1625 | void (*d_instantiate) (struct dentry *dentry, struct inode *inode); |
1626 | ||
7b41b173 EP |
1627 | int (*getprocattr) (struct task_struct *p, char *name, char **value); |
1628 | int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size); | |
746df9b5 | 1629 | int (*ismaclabel) (const char *name); |
7b41b173 | 1630 | int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen); |
7bf570dc | 1631 | int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid); |
7b41b173 | 1632 | void (*release_secctx) (char *secdata, u32 seclen); |
1da177e4 | 1633 | |
1ee65e37 DQ |
1634 | int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen); |
1635 | int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1636 | int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen); | |
1637 | ||
1da177e4 | 1638 | #ifdef CONFIG_SECURITY_NETWORK |
3610cda5 | 1639 | int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk); |
7b41b173 | 1640 | int (*unix_may_send) (struct socket *sock, struct socket *other); |
1da177e4 LT |
1641 | |
1642 | int (*socket_create) (int family, int type, int protocol, int kern); | |
7b41b173 | 1643 | int (*socket_post_create) (struct socket *sock, int family, |
7420ed23 | 1644 | int type, int protocol, int kern); |
7b41b173 EP |
1645 | int (*socket_bind) (struct socket *sock, |
1646 | struct sockaddr *address, int addrlen); | |
1647 | int (*socket_connect) (struct socket *sock, | |
1648 | struct sockaddr *address, int addrlen); | |
1649 | int (*socket_listen) (struct socket *sock, int backlog); | |
1650 | int (*socket_accept) (struct socket *sock, struct socket *newsock); | |
7b41b173 EP |
1651 | int (*socket_sendmsg) (struct socket *sock, |
1652 | struct msghdr *msg, int size); | |
1653 | int (*socket_recvmsg) (struct socket *sock, | |
1654 | struct msghdr *msg, int size, int flags); | |
1655 | int (*socket_getsockname) (struct socket *sock); | |
1656 | int (*socket_getpeername) (struct socket *sock); | |
1657 | int (*socket_getsockopt) (struct socket *sock, int level, int optname); | |
1658 | int (*socket_setsockopt) (struct socket *sock, int level, int optname); | |
1659 | int (*socket_shutdown) (struct socket *sock, int how); | |
1660 | int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb); | |
2c7946a7 | 1661 | int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len); |
dc49c1f9 | 1662 | int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid); |
7d877f3b | 1663 | int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority); |
1da177e4 | 1664 | void (*sk_free_security) (struct sock *sk); |
892c141e | 1665 | void (*sk_clone_security) (const struct sock *sk, struct sock *newsk); |
beb8d13b | 1666 | void (*sk_getsecid) (struct sock *sk, u32 *secid); |
7b41b173 EP |
1667 | void (*sock_graft) (struct sock *sk, struct socket *parent); |
1668 | int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb, | |
1669 | struct request_sock *req); | |
1670 | void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req); | |
1671 | void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb); | |
2606fd1f EP |
1672 | int (*secmark_relabel_packet) (u32 secid); |
1673 | void (*secmark_refcount_inc) (void); | |
1674 | void (*secmark_refcount_dec) (void); | |
7b41b173 | 1675 | void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl); |
5dbbaf2d PM |
1676 | int (*tun_dev_alloc_security) (void **security); |
1677 | void (*tun_dev_free_security) (void *security); | |
1678 | int (*tun_dev_create) (void); | |
1679 | int (*tun_dev_attach_queue) (void *security); | |
1680 | int (*tun_dev_attach) (struct sock *sk, void *security); | |
1681 | int (*tun_dev_open) (void *security); | |
ca10b9e9 | 1682 | void (*skb_owned_by) (struct sk_buff *skb, struct sock *sk); |
1da177e4 | 1683 | #endif /* CONFIG_SECURITY_NETWORK */ |
29db9190 | 1684 | |
df71837d | 1685 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
03e1ad7b | 1686 | int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp, |
52a4c640 | 1687 | struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); |
03e1ad7b PM |
1688 | int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx); |
1689 | void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx); | |
1690 | int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx); | |
2e5aa866 PM |
1691 | int (*xfrm_state_alloc) (struct xfrm_state *x, |
1692 | struct xfrm_user_sec_ctx *sec_ctx); | |
1693 | int (*xfrm_state_alloc_acquire) (struct xfrm_state *x, | |
1694 | struct xfrm_sec_ctx *polsec, | |
1695 | u32 secid); | |
df71837d | 1696 | void (*xfrm_state_free_security) (struct xfrm_state *x); |
c8c05a8e | 1697 | int (*xfrm_state_delete_security) (struct xfrm_state *x); |
7b41b173 EP |
1698 | int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
1699 | int (*xfrm_state_pol_flow_match) (struct xfrm_state *x, | |
1700 | struct xfrm_policy *xp, | |
e33f7704 | 1701 | const struct flowi *fl); |
7b41b173 | 1702 | int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall); |
df71837d TJ |
1703 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
1704 | ||
29db9190 DH |
1705 | /* key management security hooks */ |
1706 | #ifdef CONFIG_KEYS | |
d84f4f99 | 1707 | int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags); |
7b41b173 EP |
1708 | void (*key_free) (struct key *key); |
1709 | int (*key_permission) (key_ref_t key_ref, | |
d84f4f99 | 1710 | const struct cred *cred, |
7b41b173 | 1711 | key_perm_t perm); |
70a5bb72 | 1712 | int (*key_getsecurity)(struct key *key, char **_buffer); |
29db9190 DH |
1713 | #endif /* CONFIG_KEYS */ |
1714 | ||
03d37d25 | 1715 | #ifdef CONFIG_AUDIT |
7b41b173 EP |
1716 | int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule); |
1717 | int (*audit_rule_known) (struct audit_krule *krule); | |
1718 | int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule, | |
1719 | struct audit_context *actx); | |
1720 | void (*audit_rule_free) (void *lsmrule); | |
03d37d25 | 1721 | #endif /* CONFIG_AUDIT */ |
1da177e4 LT |
1722 | }; |
1723 | ||
1da177e4 | 1724 | /* prototypes */ |
7b41b173 | 1725 | extern int security_init(void); |
076c54c5 | 1726 | extern int security_module_enable(struct security_operations *ops); |
7b41b173 | 1727 | extern int register_security(struct security_operations *ops); |
5dbe3040 JM |
1728 | extern void __init security_fixup_ops(struct security_operations *ops); |
1729 | ||
1da177e4 | 1730 | |
20510f2f | 1731 | /* Security operations */ |
9e48858f | 1732 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 1733 | int security_ptrace_traceme(struct task_struct *parent); |
20510f2f | 1734 | int security_capget(struct task_struct *target, |
7b41b173 EP |
1735 | kernel_cap_t *effective, |
1736 | kernel_cap_t *inheritable, | |
1737 | kernel_cap_t *permitted); | |
d84f4f99 DH |
1738 | int security_capset(struct cred *new, const struct cred *old, |
1739 | const kernel_cap_t *effective, | |
1740 | const kernel_cap_t *inheritable, | |
1741 | const kernel_cap_t *permitted); | |
b7e724d3 | 1742 | int security_capable(const struct cred *cred, struct user_namespace *ns, |
3486740a | 1743 | int cap); |
c7eba4a9 EP |
1744 | int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, |
1745 | int cap); | |
20510f2f JM |
1746 | int security_quotactl(int cmds, int type, int id, struct super_block *sb); |
1747 | int security_quota_on(struct dentry *dentry); | |
12b3052c | 1748 | int security_syslog(int type); |
1e6d7679 | 1749 | int security_settime(const struct timespec *ts, const struct timezone *tz); |
20510f2f | 1750 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); |
a6f76f23 | 1751 | int security_bprm_set_creds(struct linux_binprm *bprm); |
20510f2f | 1752 | int security_bprm_check(struct linux_binprm *bprm); |
a6f76f23 DH |
1753 | void security_bprm_committing_creds(struct linux_binprm *bprm); |
1754 | void security_bprm_committed_creds(struct linux_binprm *bprm); | |
20510f2f JM |
1755 | int security_bprm_secureexec(struct linux_binprm *bprm); |
1756 | int security_sb_alloc(struct super_block *sb); | |
1757 | void security_sb_free(struct super_block *sb); | |
e0007529 | 1758 | int security_sb_copy_data(char *orig, char *copy); |
ff36fe2c | 1759 | int security_sb_remount(struct super_block *sb, void *data); |
12204e24 | 1760 | int security_sb_kern_mount(struct super_block *sb, int flags, void *data); |
2069f457 | 1761 | int security_sb_show_options(struct seq_file *m, struct super_block *sb); |
20510f2f | 1762 | int security_sb_statfs(struct dentry *dentry); |
808d4e3c AV |
1763 | int security_sb_mount(const char *dev_name, struct path *path, |
1764 | const char *type, unsigned long flags, void *data); | |
20510f2f | 1765 | int security_sb_umount(struct vfsmount *mnt, int flags); |
b5266eb4 | 1766 | int security_sb_pivotroot(struct path *old_path, struct path *new_path); |
649f6e77 DQ |
1767 | int security_sb_set_mnt_opts(struct super_block *sb, |
1768 | struct security_mnt_opts *opts, | |
1769 | unsigned long kern_flags, | |
1770 | unsigned long *set_kern_flags); | |
094f7b69 | 1771 | int security_sb_clone_mnt_opts(const struct super_block *oldsb, |
c9180a57 | 1772 | struct super_block *newsb); |
e0007529 | 1773 | int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts); |
d47be3df DQ |
1774 | int security_dentry_init_security(struct dentry *dentry, int mode, |
1775 | struct qstr *name, void **ctx, | |
1776 | u32 *ctxlen); | |
c9180a57 | 1777 | |
20510f2f JM |
1778 | int security_inode_alloc(struct inode *inode); |
1779 | void security_inode_free(struct inode *inode); | |
1780 | int security_inode_init_security(struct inode *inode, struct inode *dir, | |
9d8f13ba MZ |
1781 | const struct qstr *qstr, |
1782 | initxattrs initxattrs, void *fs_data); | |
1783 | int security_old_inode_init_security(struct inode *inode, struct inode *dir, | |
9548906b | 1784 | const struct qstr *qstr, const char **name, |
9d8f13ba | 1785 | void **value, size_t *len); |
4acdaf27 | 1786 | int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode); |
20510f2f JM |
1787 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, |
1788 | struct dentry *new_dentry); | |
1789 | int security_inode_unlink(struct inode *dir, struct dentry *dentry); | |
1790 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
7b41b173 | 1791 | const char *old_name); |
18bb1db3 | 1792 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode); |
20510f2f | 1793 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry); |
1a67aafb | 1794 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev); |
20510f2f | 1795 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, |
0b3974eb MS |
1796 | struct inode *new_dir, struct dentry *new_dentry, |
1797 | unsigned int flags); | |
20510f2f JM |
1798 | int security_inode_readlink(struct dentry *dentry); |
1799 | int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd); | |
b77b0646 | 1800 | int security_inode_permission(struct inode *inode, int mask); |
20510f2f JM |
1801 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr); |
1802 | int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry); | |
8f0cfa52 DH |
1803 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
1804 | const void *value, size_t size, int flags); | |
1805 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, | |
1806 | const void *value, size_t size, int flags); | |
1807 | int security_inode_getxattr(struct dentry *dentry, const char *name); | |
20510f2f | 1808 | int security_inode_listxattr(struct dentry *dentry); |
8f0cfa52 | 1809 | int security_inode_removexattr(struct dentry *dentry, const char *name); |
b5376771 SH |
1810 | int security_inode_need_killpriv(struct dentry *dentry); |
1811 | int security_inode_killpriv(struct dentry *dentry); | |
42492594 | 1812 | int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc); |
20510f2f JM |
1813 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); |
1814 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); | |
8a076191 | 1815 | void security_inode_getsecid(const struct inode *inode, u32 *secid); |
20510f2f JM |
1816 | int security_file_permission(struct file *file, int mask); |
1817 | int security_file_alloc(struct file *file); | |
1818 | void security_file_free(struct file *file); | |
1819 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); | |
8b3ec681 AV |
1820 | int security_mmap_file(struct file *file, unsigned long prot, |
1821 | unsigned long flags); | |
e5467859 | 1822 | int security_mmap_addr(unsigned long addr); |
20510f2f | 1823 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, |
7b41b173 | 1824 | unsigned long prot); |
20510f2f JM |
1825 | int security_file_lock(struct file *file, unsigned int cmd); |
1826 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); | |
1827 | int security_file_set_fowner(struct file *file); | |
1828 | int security_file_send_sigiotask(struct task_struct *tsk, | |
7b41b173 | 1829 | struct fown_struct *fown, int sig); |
20510f2f | 1830 | int security_file_receive(struct file *file); |
83d49856 | 1831 | int security_file_open(struct file *file, const struct cred *cred); |
20510f2f | 1832 | int security_task_create(unsigned long clone_flags); |
1a2a4d06 | 1833 | void security_task_free(struct task_struct *task); |
ee18d64c | 1834 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); |
f1752eec | 1835 | void security_cred_free(struct cred *cred); |
d84f4f99 | 1836 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); |
ee18d64c | 1837 | void security_transfer_creds(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1838 | int security_kernel_act_as(struct cred *new, u32 secid); |
1839 | int security_kernel_create_files_as(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1840 | int security_kernel_module_request(char *kmod_name); |
2e72d51b | 1841 | int security_kernel_module_from_file(struct file *file); |
d84f4f99 DH |
1842 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1843 | int flags); | |
20510f2f JM |
1844 | int security_task_setpgid(struct task_struct *p, pid_t pgid); |
1845 | int security_task_getpgid(struct task_struct *p); | |
1846 | int security_task_getsid(struct task_struct *p); | |
1847 | void security_task_getsecid(struct task_struct *p, u32 *secid); | |
20510f2f JM |
1848 | int security_task_setnice(struct task_struct *p, int nice); |
1849 | int security_task_setioprio(struct task_struct *p, int ioprio); | |
1850 | int security_task_getioprio(struct task_struct *p); | |
8fd00b4d JS |
1851 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
1852 | struct rlimit *new_rlim); | |
b0ae1981 | 1853 | int security_task_setscheduler(struct task_struct *p); |
20510f2f JM |
1854 | int security_task_getscheduler(struct task_struct *p); |
1855 | int security_task_movememory(struct task_struct *p); | |
1856 | int security_task_kill(struct task_struct *p, struct siginfo *info, | |
1857 | int sig, u32 secid); | |
1858 | int security_task_wait(struct task_struct *p); | |
1859 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, | |
d84f4f99 | 1860 | unsigned long arg4, unsigned long arg5); |
20510f2f JM |
1861 | void security_task_to_inode(struct task_struct *p, struct inode *inode); |
1862 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); | |
8a076191 | 1863 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid); |
20510f2f JM |
1864 | int security_msg_msg_alloc(struct msg_msg *msg); |
1865 | void security_msg_msg_free(struct msg_msg *msg); | |
1866 | int security_msg_queue_alloc(struct msg_queue *msq); | |
1867 | void security_msg_queue_free(struct msg_queue *msq); | |
1868 | int security_msg_queue_associate(struct msg_queue *msq, int msqflg); | |
1869 | int security_msg_queue_msgctl(struct msg_queue *msq, int cmd); | |
1870 | int security_msg_queue_msgsnd(struct msg_queue *msq, | |
7b41b173 | 1871 | struct msg_msg *msg, int msqflg); |
20510f2f | 1872 | int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, |
7b41b173 | 1873 | struct task_struct *target, long type, int mode); |
20510f2f JM |
1874 | int security_shm_alloc(struct shmid_kernel *shp); |
1875 | void security_shm_free(struct shmid_kernel *shp); | |
1876 | int security_shm_associate(struct shmid_kernel *shp, int shmflg); | |
1877 | int security_shm_shmctl(struct shmid_kernel *shp, int cmd); | |
1878 | int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg); | |
1879 | int security_sem_alloc(struct sem_array *sma); | |
1880 | void security_sem_free(struct sem_array *sma); | |
1881 | int security_sem_associate(struct sem_array *sma, int semflg); | |
1882 | int security_sem_semctl(struct sem_array *sma, int cmd); | |
1883 | int security_sem_semop(struct sem_array *sma, struct sembuf *sops, | |
1884 | unsigned nsops, int alter); | |
7b41b173 | 1885 | void security_d_instantiate(struct dentry *dentry, struct inode *inode); |
20510f2f JM |
1886 | int security_getprocattr(struct task_struct *p, char *name, char **value); |
1887 | int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size); | |
1888 | int security_netlink_send(struct sock *sk, struct sk_buff *skb); | |
746df9b5 | 1889 | int security_ismaclabel(const char *name); |
20510f2f | 1890 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); |
7bf570dc | 1891 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); |
20510f2f JM |
1892 | void security_release_secctx(char *secdata, u32 seclen); |
1893 | ||
1ee65e37 DQ |
1894 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); |
1895 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1896 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); | |
1da177e4 | 1897 | #else /* CONFIG_SECURITY */ |
e0007529 EP |
1898 | struct security_mnt_opts { |
1899 | }; | |
1900 | ||
1901 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
1902 | { | |
1903 | } | |
1904 | ||
1905 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
1906 | { | |
1907 | } | |
1da177e4 LT |
1908 | |
1909 | /* | |
1910 | * This is the default capabilities functionality. Most of these functions | |
1911 | * are just stubbed out, but a few must call the proper capable code. | |
1912 | */ | |
1913 | ||
1914 | static inline int security_init(void) | |
1915 | { | |
1916 | return 0; | |
1917 | } | |
1918 | ||
9e48858f | 1919 | static inline int security_ptrace_access_check(struct task_struct *child, |
5cd9c58f DH |
1920 | unsigned int mode) |
1921 | { | |
9e48858f | 1922 | return cap_ptrace_access_check(child, mode); |
5cd9c58f DH |
1923 | } |
1924 | ||
5e186b57 | 1925 | static inline int security_ptrace_traceme(struct task_struct *parent) |
1da177e4 | 1926 | { |
5cd9c58f | 1927 | return cap_ptrace_traceme(parent); |
1da177e4 LT |
1928 | } |
1929 | ||
7b41b173 | 1930 | static inline int security_capget(struct task_struct *target, |
1da177e4 LT |
1931 | kernel_cap_t *effective, |
1932 | kernel_cap_t *inheritable, | |
1933 | kernel_cap_t *permitted) | |
1934 | { | |
7b41b173 | 1935 | return cap_capget(target, effective, inheritable, permitted); |
1da177e4 LT |
1936 | } |
1937 | ||
d84f4f99 DH |
1938 | static inline int security_capset(struct cred *new, |
1939 | const struct cred *old, | |
1940 | const kernel_cap_t *effective, | |
1941 | const kernel_cap_t *inheritable, | |
1942 | const kernel_cap_t *permitted) | |
1da177e4 | 1943 | { |
d84f4f99 | 1944 | return cap_capset(new, old, effective, inheritable, permitted); |
1da177e4 LT |
1945 | } |
1946 | ||
b7e724d3 EP |
1947 | static inline int security_capable(const struct cred *cred, |
1948 | struct user_namespace *ns, int cap) | |
06112163 | 1949 | { |
6a9de491 | 1950 | return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT); |
3699c53c DH |
1951 | } |
1952 | ||
c7eba4a9 EP |
1953 | static inline int security_capable_noaudit(const struct cred *cred, |
1954 | struct user_namespace *ns, int cap) { | |
1955 | return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT); | |
12b5989b CW |
1956 | } |
1957 | ||
7b41b173 EP |
1958 | static inline int security_quotactl(int cmds, int type, int id, |
1959 | struct super_block *sb) | |
1da177e4 LT |
1960 | { |
1961 | return 0; | |
1962 | } | |
1963 | ||
7b41b173 | 1964 | static inline int security_quota_on(struct dentry *dentry) |
1da177e4 LT |
1965 | { |
1966 | return 0; | |
1967 | } | |
1968 | ||
12b3052c | 1969 | static inline int security_syslog(int type) |
1da177e4 | 1970 | { |
12b3052c | 1971 | return 0; |
1da177e4 LT |
1972 | } |
1973 | ||
1e6d7679 RC |
1974 | static inline int security_settime(const struct timespec *ts, |
1975 | const struct timezone *tz) | |
1da177e4 LT |
1976 | { |
1977 | return cap_settime(ts, tz); | |
1978 | } | |
1979 | ||
1b79cd04 | 1980 | static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
731572d3 | 1981 | { |
1b79cd04 | 1982 | return cap_vm_enough_memory(mm, pages); |
731572d3 AC |
1983 | } |
1984 | ||
a6f76f23 | 1985 | static inline int security_bprm_set_creds(struct linux_binprm *bprm) |
7b41b173 | 1986 | { |
a6f76f23 | 1987 | return cap_bprm_set_creds(bprm); |
1da177e4 LT |
1988 | } |
1989 | ||
a6f76f23 | 1990 | static inline int security_bprm_check(struct linux_binprm *bprm) |
1da177e4 | 1991 | { |
a6f76f23 | 1992 | return 0; |
1da177e4 LT |
1993 | } |
1994 | ||
a6f76f23 | 1995 | static inline void security_bprm_committing_creds(struct linux_binprm *bprm) |
1da177e4 | 1996 | { |
1da177e4 LT |
1997 | } |
1998 | ||
a6f76f23 | 1999 | static inline void security_bprm_committed_creds(struct linux_binprm *bprm) |
1da177e4 | 2000 | { |
1da177e4 LT |
2001 | } |
2002 | ||
7b41b173 | 2003 | static inline int security_bprm_secureexec(struct linux_binprm *bprm) |
1da177e4 LT |
2004 | { |
2005 | return cap_bprm_secureexec(bprm); | |
2006 | } | |
2007 | ||
7b41b173 | 2008 | static inline int security_sb_alloc(struct super_block *sb) |
1da177e4 LT |
2009 | { |
2010 | return 0; | |
2011 | } | |
2012 | ||
7b41b173 | 2013 | static inline void security_sb_free(struct super_block *sb) |
1da177e4 LT |
2014 | { } |
2015 | ||
7b41b173 | 2016 | static inline int security_sb_copy_data(char *orig, char *copy) |
1da177e4 LT |
2017 | { |
2018 | return 0; | |
2019 | } | |
2020 | ||
ff36fe2c EP |
2021 | static inline int security_sb_remount(struct super_block *sb, void *data) |
2022 | { | |
2023 | return 0; | |
2024 | } | |
2025 | ||
12204e24 | 2026 | static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data) |
1da177e4 LT |
2027 | { |
2028 | return 0; | |
2029 | } | |
2030 | ||
2069f457 EP |
2031 | static inline int security_sb_show_options(struct seq_file *m, |
2032 | struct super_block *sb) | |
2033 | { | |
2034 | return 0; | |
2035 | } | |
2036 | ||
7b41b173 | 2037 | static inline int security_sb_statfs(struct dentry *dentry) |
1da177e4 LT |
2038 | { |
2039 | return 0; | |
2040 | } | |
2041 | ||
808d4e3c AV |
2042 | static inline int security_sb_mount(const char *dev_name, struct path *path, |
2043 | const char *type, unsigned long flags, | |
1da177e4 LT |
2044 | void *data) |
2045 | { | |
2046 | return 0; | |
2047 | } | |
2048 | ||
7b41b173 | 2049 | static inline int security_sb_umount(struct vfsmount *mnt, int flags) |
1da177e4 LT |
2050 | { |
2051 | return 0; | |
2052 | } | |
2053 | ||
7b41b173 EP |
2054 | static inline int security_sb_pivotroot(struct path *old_path, |
2055 | struct path *new_path) | |
1da177e4 LT |
2056 | { |
2057 | return 0; | |
2058 | } | |
2059 | ||
e0007529 | 2060 | static inline int security_sb_set_mnt_opts(struct super_block *sb, |
649f6e77 DQ |
2061 | struct security_mnt_opts *opts, |
2062 | unsigned long kern_flags, | |
2063 | unsigned long *set_kern_flags) | |
e0007529 EP |
2064 | { |
2065 | return 0; | |
2066 | } | |
2067 | ||
094f7b69 | 2068 | static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb, |
e0007529 | 2069 | struct super_block *newsb) |
094f7b69 JL |
2070 | { |
2071 | return 0; | |
2072 | } | |
e0007529 EP |
2073 | |
2074 | static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) | |
2075 | { | |
2076 | return 0; | |
2077 | } | |
1da177e4 | 2078 | |
7b41b173 | 2079 | static inline int security_inode_alloc(struct inode *inode) |
1da177e4 LT |
2080 | { |
2081 | return 0; | |
2082 | } | |
2083 | ||
7b41b173 | 2084 | static inline void security_inode_free(struct inode *inode) |
1da177e4 | 2085 | { } |
5e41ff9e | 2086 | |
d47be3df DQ |
2087 | static inline int security_dentry_init_security(struct dentry *dentry, |
2088 | int mode, | |
2089 | struct qstr *name, | |
2090 | void **ctx, | |
2091 | u32 *ctxlen) | |
2092 | { | |
2093 | return -EOPNOTSUPP; | |
2094 | } | |
2095 | ||
2096 | ||
7b41b173 | 2097 | static inline int security_inode_init_security(struct inode *inode, |
5e41ff9e | 2098 | struct inode *dir, |
2a7dba39 | 2099 | const struct qstr *qstr, |
1933ca87 | 2100 | const initxattrs initxattrs, |
9d8f13ba | 2101 | void *fs_data) |
5e41ff9e | 2102 | { |
1e39f384 | 2103 | return 0; |
5e41ff9e | 2104 | } |
7b41b173 | 2105 | |
1e39f384 MZ |
2106 | static inline int security_old_inode_init_security(struct inode *inode, |
2107 | struct inode *dir, | |
2108 | const struct qstr *qstr, | |
9548906b TH |
2109 | const char **name, |
2110 | void **value, size_t *len) | |
e1c9b23a | 2111 | { |
30e05324 | 2112 | return -EOPNOTSUPP; |
e1c9b23a MZ |
2113 | } |
2114 | ||
7b41b173 | 2115 | static inline int security_inode_create(struct inode *dir, |
1da177e4 | 2116 | struct dentry *dentry, |
4acdaf27 | 2117 | umode_t mode) |
1da177e4 LT |
2118 | { |
2119 | return 0; | |
2120 | } | |
2121 | ||
7b41b173 | 2122 | static inline int security_inode_link(struct dentry *old_dentry, |
1da177e4 LT |
2123 | struct inode *dir, |
2124 | struct dentry *new_dentry) | |
2125 | { | |
2126 | return 0; | |
2127 | } | |
2128 | ||
7b41b173 | 2129 | static inline int security_inode_unlink(struct inode *dir, |
1da177e4 LT |
2130 | struct dentry *dentry) |
2131 | { | |
2132 | return 0; | |
2133 | } | |
2134 | ||
7b41b173 | 2135 | static inline int security_inode_symlink(struct inode *dir, |
1da177e4 LT |
2136 | struct dentry *dentry, |
2137 | const char *old_name) | |
2138 | { | |
2139 | return 0; | |
2140 | } | |
2141 | ||
7b41b173 | 2142 | static inline int security_inode_mkdir(struct inode *dir, |
1da177e4 LT |
2143 | struct dentry *dentry, |
2144 | int mode) | |
2145 | { | |
2146 | return 0; | |
2147 | } | |
2148 | ||
7b41b173 | 2149 | static inline int security_inode_rmdir(struct inode *dir, |
1da177e4 LT |
2150 | struct dentry *dentry) |
2151 | { | |
2152 | return 0; | |
2153 | } | |
2154 | ||
7b41b173 | 2155 | static inline int security_inode_mknod(struct inode *dir, |
1da177e4 LT |
2156 | struct dentry *dentry, |
2157 | int mode, dev_t dev) | |
2158 | { | |
2159 | return 0; | |
2160 | } | |
2161 | ||
7b41b173 | 2162 | static inline int security_inode_rename(struct inode *old_dir, |
1da177e4 LT |
2163 | struct dentry *old_dentry, |
2164 | struct inode *new_dir, | |
0b3974eb MS |
2165 | struct dentry *new_dentry, |
2166 | unsigned int flags) | |
1da177e4 LT |
2167 | { |
2168 | return 0; | |
2169 | } | |
2170 | ||
7b41b173 | 2171 | static inline int security_inode_readlink(struct dentry *dentry) |
1da177e4 LT |
2172 | { |
2173 | return 0; | |
2174 | } | |
2175 | ||
7b41b173 | 2176 | static inline int security_inode_follow_link(struct dentry *dentry, |
1da177e4 LT |
2177 | struct nameidata *nd) |
2178 | { | |
2179 | return 0; | |
2180 | } | |
2181 | ||
b77b0646 | 2182 | static inline int security_inode_permission(struct inode *inode, int mask) |
1da177e4 LT |
2183 | { |
2184 | return 0; | |
2185 | } | |
2186 | ||
7b41b173 | 2187 | static inline int security_inode_setattr(struct dentry *dentry, |
1da177e4 LT |
2188 | struct iattr *attr) |
2189 | { | |
2190 | return 0; | |
2191 | } | |
2192 | ||
7b41b173 | 2193 | static inline int security_inode_getattr(struct vfsmount *mnt, |
1da177e4 LT |
2194 | struct dentry *dentry) |
2195 | { | |
2196 | return 0; | |
2197 | } | |
2198 | ||
8f0cfa52 DH |
2199 | static inline int security_inode_setxattr(struct dentry *dentry, |
2200 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2201 | { |
2202 | return cap_inode_setxattr(dentry, name, value, size, flags); | |
2203 | } | |
2204 | ||
8f0cfa52 DH |
2205 | static inline void security_inode_post_setxattr(struct dentry *dentry, |
2206 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2207 | { } |
2208 | ||
8f0cfa52 DH |
2209 | static inline int security_inode_getxattr(struct dentry *dentry, |
2210 | const char *name) | |
1da177e4 LT |
2211 | { |
2212 | return 0; | |
2213 | } | |
2214 | ||
7b41b173 | 2215 | static inline int security_inode_listxattr(struct dentry *dentry) |
1da177e4 LT |
2216 | { |
2217 | return 0; | |
2218 | } | |
2219 | ||
8f0cfa52 DH |
2220 | static inline int security_inode_removexattr(struct dentry *dentry, |
2221 | const char *name) | |
1da177e4 LT |
2222 | { |
2223 | return cap_inode_removexattr(dentry, name); | |
2224 | } | |
2225 | ||
b5376771 SH |
2226 | static inline int security_inode_need_killpriv(struct dentry *dentry) |
2227 | { | |
2228 | return cap_inode_need_killpriv(dentry); | |
2229 | } | |
2230 | ||
2231 | static inline int security_inode_killpriv(struct dentry *dentry) | |
2232 | { | |
2233 | return cap_inode_killpriv(dentry); | |
2234 | } | |
2235 | ||
42492594 | 2236 | static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) |
1da177e4 LT |
2237 | { |
2238 | return -EOPNOTSUPP; | |
2239 | } | |
2240 | ||
2241 | static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
2242 | { | |
2243 | return -EOPNOTSUPP; | |
2244 | } | |
2245 | ||
2246 | static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
2247 | { | |
2248 | return 0; | |
2249 | } | |
2250 | ||
8a076191 AD |
2251 | static inline void security_inode_getsecid(const struct inode *inode, u32 *secid) |
2252 | { | |
2253 | *secid = 0; | |
2254 | } | |
2255 | ||
7b41b173 | 2256 | static inline int security_file_permission(struct file *file, int mask) |
1da177e4 LT |
2257 | { |
2258 | return 0; | |
2259 | } | |
2260 | ||
7b41b173 | 2261 | static inline int security_file_alloc(struct file *file) |
1da177e4 LT |
2262 | { |
2263 | return 0; | |
2264 | } | |
2265 | ||
7b41b173 | 2266 | static inline void security_file_free(struct file *file) |
1da177e4 LT |
2267 | { } |
2268 | ||
7b41b173 EP |
2269 | static inline int security_file_ioctl(struct file *file, unsigned int cmd, |
2270 | unsigned long arg) | |
1da177e4 LT |
2271 | { |
2272 | return 0; | |
2273 | } | |
2274 | ||
8b3ec681 | 2275 | static inline int security_mmap_file(struct file *file, unsigned long prot, |
e5467859 AV |
2276 | unsigned long flags) |
2277 | { | |
2278 | return 0; | |
2279 | } | |
2280 | ||
2281 | static inline int security_mmap_addr(unsigned long addr) | |
1da177e4 | 2282 | { |
d007794a | 2283 | return cap_mmap_addr(addr); |
1da177e4 LT |
2284 | } |
2285 | ||
7b41b173 EP |
2286 | static inline int security_file_mprotect(struct vm_area_struct *vma, |
2287 | unsigned long reqprot, | |
2288 | unsigned long prot) | |
1da177e4 LT |
2289 | { |
2290 | return 0; | |
2291 | } | |
2292 | ||
7b41b173 | 2293 | static inline int security_file_lock(struct file *file, unsigned int cmd) |
1da177e4 LT |
2294 | { |
2295 | return 0; | |
2296 | } | |
2297 | ||
7b41b173 EP |
2298 | static inline int security_file_fcntl(struct file *file, unsigned int cmd, |
2299 | unsigned long arg) | |
1da177e4 LT |
2300 | { |
2301 | return 0; | |
2302 | } | |
2303 | ||
7b41b173 | 2304 | static inline int security_file_set_fowner(struct file *file) |
1da177e4 LT |
2305 | { |
2306 | return 0; | |
2307 | } | |
2308 | ||
7b41b173 EP |
2309 | static inline int security_file_send_sigiotask(struct task_struct *tsk, |
2310 | struct fown_struct *fown, | |
2311 | int sig) | |
1da177e4 LT |
2312 | { |
2313 | return 0; | |
2314 | } | |
2315 | ||
7b41b173 | 2316 | static inline int security_file_receive(struct file *file) |
1da177e4 LT |
2317 | { |
2318 | return 0; | |
2319 | } | |
2320 | ||
83d49856 EP |
2321 | static inline int security_file_open(struct file *file, |
2322 | const struct cred *cred) | |
788e7dd4 YN |
2323 | { |
2324 | return 0; | |
2325 | } | |
2326 | ||
7b41b173 | 2327 | static inline int security_task_create(unsigned long clone_flags) |
1da177e4 LT |
2328 | { |
2329 | return 0; | |
2330 | } | |
2331 | ||
1a2a4d06 KC |
2332 | static inline void security_task_free(struct task_struct *task) |
2333 | { } | |
2334 | ||
945af7c3 DH |
2335 | static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
2336 | { | |
2337 | return 0; | |
2338 | } | |
ee18d64c | 2339 | |
d84f4f99 DH |
2340 | static inline void security_cred_free(struct cred *cred) |
2341 | { } | |
2342 | ||
2343 | static inline int security_prepare_creds(struct cred *new, | |
2344 | const struct cred *old, | |
2345 | gfp_t gfp) | |
1da177e4 LT |
2346 | { |
2347 | return 0; | |
2348 | } | |
2349 | ||
ee18d64c DH |
2350 | static inline void security_transfer_creds(struct cred *new, |
2351 | const struct cred *old) | |
2352 | { | |
2353 | } | |
2354 | ||
3a3b7ce9 DH |
2355 | static inline int security_kernel_act_as(struct cred *cred, u32 secid) |
2356 | { | |
2357 | return 0; | |
2358 | } | |
2359 | ||
2360 | static inline int security_kernel_create_files_as(struct cred *cred, | |
2361 | struct inode *inode) | |
2362 | { | |
2363 | return 0; | |
2364 | } | |
2365 | ||
dd8dbf2e | 2366 | static inline int security_kernel_module_request(char *kmod_name) |
9188499c EP |
2367 | { |
2368 | return 0; | |
1da177e4 LT |
2369 | } |
2370 | ||
2e72d51b KC |
2371 | static inline int security_kernel_module_from_file(struct file *file) |
2372 | { | |
2373 | return 0; | |
2374 | } | |
2375 | ||
d84f4f99 DH |
2376 | static inline int security_task_fix_setuid(struct cred *new, |
2377 | const struct cred *old, | |
2378 | int flags) | |
1da177e4 | 2379 | { |
d84f4f99 | 2380 | return cap_task_fix_setuid(new, old, flags); |
1da177e4 LT |
2381 | } |
2382 | ||
7b41b173 | 2383 | static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1da177e4 LT |
2384 | { |
2385 | return 0; | |
2386 | } | |
2387 | ||
7b41b173 | 2388 | static inline int security_task_getpgid(struct task_struct *p) |
1da177e4 LT |
2389 | { |
2390 | return 0; | |
2391 | } | |
2392 | ||
7b41b173 | 2393 | static inline int security_task_getsid(struct task_struct *p) |
1da177e4 LT |
2394 | { |
2395 | return 0; | |
2396 | } | |
2397 | ||
7b41b173 | 2398 | static inline void security_task_getsecid(struct task_struct *p, u32 *secid) |
8a076191 AD |
2399 | { |
2400 | *secid = 0; | |
2401 | } | |
f9008e4c | 2402 | |
7b41b173 | 2403 | static inline int security_task_setnice(struct task_struct *p, int nice) |
1da177e4 | 2404 | { |
b5376771 | 2405 | return cap_task_setnice(p, nice); |
1da177e4 LT |
2406 | } |
2407 | ||
7b41b173 | 2408 | static inline int security_task_setioprio(struct task_struct *p, int ioprio) |
03e68060 | 2409 | { |
b5376771 | 2410 | return cap_task_setioprio(p, ioprio); |
03e68060 JM |
2411 | } |
2412 | ||
7b41b173 | 2413 | static inline int security_task_getioprio(struct task_struct *p) |
a1836a42 DQ |
2414 | { |
2415 | return 0; | |
2416 | } | |
2417 | ||
8fd00b4d JS |
2418 | static inline int security_task_setrlimit(struct task_struct *p, |
2419 | unsigned int resource, | |
7b41b173 | 2420 | struct rlimit *new_rlim) |
1da177e4 LT |
2421 | { |
2422 | return 0; | |
2423 | } | |
2424 | ||
b0ae1981 | 2425 | static inline int security_task_setscheduler(struct task_struct *p) |
1da177e4 | 2426 | { |
b0ae1981 | 2427 | return cap_task_setscheduler(p); |
1da177e4 LT |
2428 | } |
2429 | ||
7b41b173 | 2430 | static inline int security_task_getscheduler(struct task_struct *p) |
1da177e4 LT |
2431 | { |
2432 | return 0; | |
2433 | } | |
2434 | ||
7b41b173 | 2435 | static inline int security_task_movememory(struct task_struct *p) |
35601547 DQ |
2436 | { |
2437 | return 0; | |
2438 | } | |
2439 | ||
7b41b173 EP |
2440 | static inline int security_task_kill(struct task_struct *p, |
2441 | struct siginfo *info, int sig, | |
2442 | u32 secid) | |
1da177e4 | 2443 | { |
aedb60a6 | 2444 | return 0; |
1da177e4 LT |
2445 | } |
2446 | ||
7b41b173 | 2447 | static inline int security_task_wait(struct task_struct *p) |
1da177e4 LT |
2448 | { |
2449 | return 0; | |
2450 | } | |
2451 | ||
7b41b173 EP |
2452 | static inline int security_task_prctl(int option, unsigned long arg2, |
2453 | unsigned long arg3, | |
2454 | unsigned long arg4, | |
d84f4f99 | 2455 | unsigned long arg5) |
1da177e4 | 2456 | { |
d84f4f99 | 2457 | return cap_task_prctl(option, arg2, arg3, arg3, arg5); |
1da177e4 LT |
2458 | } |
2459 | ||
2460 | static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
2461 | { } | |
2462 | ||
7b41b173 EP |
2463 | static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, |
2464 | short flag) | |
1da177e4 LT |
2465 | { |
2466 | return 0; | |
2467 | } | |
2468 | ||
8a076191 AD |
2469 | static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
2470 | { | |
2471 | *secid = 0; | |
2472 | } | |
2473 | ||
7b41b173 | 2474 | static inline int security_msg_msg_alloc(struct msg_msg *msg) |
1da177e4 LT |
2475 | { |
2476 | return 0; | |
2477 | } | |
2478 | ||
7b41b173 | 2479 | static inline void security_msg_msg_free(struct msg_msg *msg) |
1da177e4 LT |
2480 | { } |
2481 | ||
7b41b173 | 2482 | static inline int security_msg_queue_alloc(struct msg_queue *msq) |
1da177e4 LT |
2483 | { |
2484 | return 0; | |
2485 | } | |
2486 | ||
7b41b173 | 2487 | static inline void security_msg_queue_free(struct msg_queue *msq) |
1da177e4 LT |
2488 | { } |
2489 | ||
7b41b173 EP |
2490 | static inline int security_msg_queue_associate(struct msg_queue *msq, |
2491 | int msqflg) | |
1da177e4 LT |
2492 | { |
2493 | return 0; | |
2494 | } | |
2495 | ||
7b41b173 | 2496 | static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) |
1da177e4 LT |
2497 | { |
2498 | return 0; | |
2499 | } | |
2500 | ||
7b41b173 EP |
2501 | static inline int security_msg_queue_msgsnd(struct msg_queue *msq, |
2502 | struct msg_msg *msg, int msqflg) | |
1da177e4 LT |
2503 | { |
2504 | return 0; | |
2505 | } | |
2506 | ||
7b41b173 EP |
2507 | static inline int security_msg_queue_msgrcv(struct msg_queue *msq, |
2508 | struct msg_msg *msg, | |
2509 | struct task_struct *target, | |
2510 | long type, int mode) | |
1da177e4 LT |
2511 | { |
2512 | return 0; | |
2513 | } | |
2514 | ||
7b41b173 | 2515 | static inline int security_shm_alloc(struct shmid_kernel *shp) |
1da177e4 LT |
2516 | { |
2517 | return 0; | |
2518 | } | |
2519 | ||
7b41b173 | 2520 | static inline void security_shm_free(struct shmid_kernel *shp) |
1da177e4 LT |
2521 | { } |
2522 | ||
7b41b173 EP |
2523 | static inline int security_shm_associate(struct shmid_kernel *shp, |
2524 | int shmflg) | |
1da177e4 LT |
2525 | { |
2526 | return 0; | |
2527 | } | |
2528 | ||
7b41b173 | 2529 | static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd) |
1da177e4 LT |
2530 | { |
2531 | return 0; | |
2532 | } | |
2533 | ||
7b41b173 EP |
2534 | static inline int security_shm_shmat(struct shmid_kernel *shp, |
2535 | char __user *shmaddr, int shmflg) | |
1da177e4 LT |
2536 | { |
2537 | return 0; | |
2538 | } | |
2539 | ||
7b41b173 | 2540 | static inline int security_sem_alloc(struct sem_array *sma) |
1da177e4 LT |
2541 | { |
2542 | return 0; | |
2543 | } | |
2544 | ||
7b41b173 | 2545 | static inline void security_sem_free(struct sem_array *sma) |
1da177e4 LT |
2546 | { } |
2547 | ||
7b41b173 | 2548 | static inline int security_sem_associate(struct sem_array *sma, int semflg) |
1da177e4 LT |
2549 | { |
2550 | return 0; | |
2551 | } | |
2552 | ||
7b41b173 | 2553 | static inline int security_sem_semctl(struct sem_array *sma, int cmd) |
1da177e4 LT |
2554 | { |
2555 | return 0; | |
2556 | } | |
2557 | ||
7b41b173 EP |
2558 | static inline int security_sem_semop(struct sem_array *sma, |
2559 | struct sembuf *sops, unsigned nsops, | |
2560 | int alter) | |
1da177e4 LT |
2561 | { |
2562 | return 0; | |
2563 | } | |
2564 | ||
7b41b173 | 2565 | static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode) |
1da177e4 LT |
2566 | { } |
2567 | ||
04ff9708 | 2568 | static inline int security_getprocattr(struct task_struct *p, char *name, char **value) |
1da177e4 LT |
2569 | { |
2570 | return -EINVAL; | |
2571 | } | |
2572 | ||
2573 | static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) | |
2574 | { | |
2575 | return -EINVAL; | |
2576 | } | |
2577 | ||
7b41b173 | 2578 | static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) |
1da177e4 | 2579 | { |
7b41b173 | 2580 | return cap_netlink_send(sk, skb); |
1da177e4 LT |
2581 | } |
2582 | ||
746df9b5 DQ |
2583 | static inline int security_ismaclabel(const char *name) |
2584 | { | |
2585 | return 0; | |
2586 | } | |
2587 | ||
dc49c1f9 CZ |
2588 | static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
2589 | { | |
2590 | return -EOPNOTSUPP; | |
2591 | } | |
2592 | ||
7bf570dc | 2593 | static inline int security_secctx_to_secid(const char *secdata, |
63cb3449 DH |
2594 | u32 seclen, |
2595 | u32 *secid) | |
2596 | { | |
2597 | return -EOPNOTSUPP; | |
2598 | } | |
2599 | ||
dc49c1f9 CZ |
2600 | static inline void security_release_secctx(char *secdata, u32 seclen) |
2601 | { | |
dc49c1f9 | 2602 | } |
1ee65e37 DQ |
2603 | |
2604 | static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) | |
2605 | { | |
2606 | return -EOPNOTSUPP; | |
2607 | } | |
2608 | static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
2609 | { | |
2610 | return -EOPNOTSUPP; | |
2611 | } | |
2612 | static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
2613 | { | |
2614 | return -EOPNOTSUPP; | |
2615 | } | |
1da177e4 LT |
2616 | #endif /* CONFIG_SECURITY */ |
2617 | ||
2618 | #ifdef CONFIG_SECURITY_NETWORK | |
4237c75c | 2619 | |
3610cda5 | 2620 | int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); |
20510f2f JM |
2621 | int security_unix_may_send(struct socket *sock, struct socket *other); |
2622 | int security_socket_create(int family, int type, int protocol, int kern); | |
2623 | int security_socket_post_create(struct socket *sock, int family, | |
2624 | int type, int protocol, int kern); | |
2625 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); | |
2626 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); | |
2627 | int security_socket_listen(struct socket *sock, int backlog); | |
2628 | int security_socket_accept(struct socket *sock, struct socket *newsock); | |
20510f2f JM |
2629 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); |
2630 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
2631 | int size, int flags); | |
2632 | int security_socket_getsockname(struct socket *sock); | |
2633 | int security_socket_getpeername(struct socket *sock); | |
2634 | int security_socket_getsockopt(struct socket *sock, int level, int optname); | |
2635 | int security_socket_setsockopt(struct socket *sock, int level, int optname); | |
2636 | int security_socket_shutdown(struct socket *sock, int how); | |
2637 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); | |
2638 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
2639 | int __user *optlen, unsigned len); | |
2640 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); | |
2641 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority); | |
2642 | void security_sk_free(struct sock *sk); | |
2643 | void security_sk_clone(const struct sock *sk, struct sock *newsk); | |
2644 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl); | |
2645 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); | |
2646 | void security_sock_graft(struct sock*sk, struct socket *parent); | |
2647 | int security_inet_conn_request(struct sock *sk, | |
2648 | struct sk_buff *skb, struct request_sock *req); | |
2649 | void security_inet_csk_clone(struct sock *newsk, | |
2650 | const struct request_sock *req); | |
2651 | void security_inet_conn_established(struct sock *sk, | |
2652 | struct sk_buff *skb); | |
2606fd1f EP |
2653 | int security_secmark_relabel_packet(u32 secid); |
2654 | void security_secmark_refcount_inc(void); | |
2655 | void security_secmark_refcount_dec(void); | |
5dbbaf2d PM |
2656 | int security_tun_dev_alloc_security(void **security); |
2657 | void security_tun_dev_free_security(void *security); | |
2b980dbd | 2658 | int security_tun_dev_create(void); |
5dbbaf2d PM |
2659 | int security_tun_dev_attach_queue(void *security); |
2660 | int security_tun_dev_attach(struct sock *sk, void *security); | |
2661 | int security_tun_dev_open(void *security); | |
6b877699 | 2662 | |
ca10b9e9 ED |
2663 | void security_skb_owned_by(struct sk_buff *skb, struct sock *sk); |
2664 | ||
1da177e4 | 2665 | #else /* CONFIG_SECURITY_NETWORK */ |
3610cda5 DM |
2666 | static inline int security_unix_stream_connect(struct sock *sock, |
2667 | struct sock *other, | |
7b41b173 | 2668 | struct sock *newsk) |
1da177e4 LT |
2669 | { |
2670 | return 0; | |
2671 | } | |
2672 | ||
7b41b173 EP |
2673 | static inline int security_unix_may_send(struct socket *sock, |
2674 | struct socket *other) | |
1da177e4 LT |
2675 | { |
2676 | return 0; | |
2677 | } | |
2678 | ||
7b41b173 EP |
2679 | static inline int security_socket_create(int family, int type, |
2680 | int protocol, int kern) | |
1da177e4 LT |
2681 | { |
2682 | return 0; | |
2683 | } | |
2684 | ||
7b41b173 | 2685 | static inline int security_socket_post_create(struct socket *sock, |
7420ed23 VY |
2686 | int family, |
2687 | int type, | |
2688 | int protocol, int kern) | |
1da177e4 | 2689 | { |
7420ed23 | 2690 | return 0; |
1da177e4 LT |
2691 | } |
2692 | ||
7b41b173 EP |
2693 | static inline int security_socket_bind(struct socket *sock, |
2694 | struct sockaddr *address, | |
1da177e4 LT |
2695 | int addrlen) |
2696 | { | |
2697 | return 0; | |
2698 | } | |
2699 | ||
7b41b173 EP |
2700 | static inline int security_socket_connect(struct socket *sock, |
2701 | struct sockaddr *address, | |
1da177e4 LT |
2702 | int addrlen) |
2703 | { | |
2704 | return 0; | |
2705 | } | |
2706 | ||
7b41b173 | 2707 | static inline int security_socket_listen(struct socket *sock, int backlog) |
1da177e4 LT |
2708 | { |
2709 | return 0; | |
2710 | } | |
2711 | ||
7b41b173 EP |
2712 | static inline int security_socket_accept(struct socket *sock, |
2713 | struct socket *newsock) | |
1da177e4 LT |
2714 | { |
2715 | return 0; | |
2716 | } | |
2717 | ||
7b41b173 EP |
2718 | static inline int security_socket_sendmsg(struct socket *sock, |
2719 | struct msghdr *msg, int size) | |
1da177e4 LT |
2720 | { |
2721 | return 0; | |
2722 | } | |
2723 | ||
7b41b173 EP |
2724 | static inline int security_socket_recvmsg(struct socket *sock, |
2725 | struct msghdr *msg, int size, | |
1da177e4 LT |
2726 | int flags) |
2727 | { | |
2728 | return 0; | |
2729 | } | |
2730 | ||
7b41b173 | 2731 | static inline int security_socket_getsockname(struct socket *sock) |
1da177e4 LT |
2732 | { |
2733 | return 0; | |
2734 | } | |
2735 | ||
7b41b173 | 2736 | static inline int security_socket_getpeername(struct socket *sock) |
1da177e4 LT |
2737 | { |
2738 | return 0; | |
2739 | } | |
2740 | ||
7b41b173 | 2741 | static inline int security_socket_getsockopt(struct socket *sock, |
1da177e4 LT |
2742 | int level, int optname) |
2743 | { | |
2744 | return 0; | |
2745 | } | |
2746 | ||
7b41b173 | 2747 | static inline int security_socket_setsockopt(struct socket *sock, |
1da177e4 LT |
2748 | int level, int optname) |
2749 | { | |
2750 | return 0; | |
2751 | } | |
2752 | ||
7b41b173 | 2753 | static inline int security_socket_shutdown(struct socket *sock, int how) |
1da177e4 LT |
2754 | { |
2755 | return 0; | |
2756 | } | |
7b41b173 EP |
2757 | static inline int security_sock_rcv_skb(struct sock *sk, |
2758 | struct sk_buff *skb) | |
1da177e4 LT |
2759 | { |
2760 | return 0; | |
2761 | } | |
2762 | ||
2c7946a7 CZ |
2763 | static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, |
2764 | int __user *optlen, unsigned len) | |
2765 | { | |
2766 | return -ENOPROTOOPT; | |
2767 | } | |
2768 | ||
dc49c1f9 | 2769 | static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) |
1da177e4 LT |
2770 | { |
2771 | return -ENOPROTOOPT; | |
2772 | } | |
2773 | ||
dd0fc66f | 2774 | static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) |
1da177e4 LT |
2775 | { |
2776 | return 0; | |
2777 | } | |
2778 | ||
2779 | static inline void security_sk_free(struct sock *sk) | |
892c141e VY |
2780 | { |
2781 | } | |
2782 | ||
2783 | static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1da177e4 LT |
2784 | { |
2785 | } | |
df71837d | 2786 | |
beb8d13b | 2787 | static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl) |
df71837d | 2788 | { |
df71837d | 2789 | } |
4237c75c VY |
2790 | |
2791 | static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
2792 | { | |
2793 | } | |
2794 | ||
7b41b173 | 2795 | static inline void security_sock_graft(struct sock *sk, struct socket *parent) |
4237c75c VY |
2796 | { |
2797 | } | |
2798 | ||
2799 | static inline int security_inet_conn_request(struct sock *sk, | |
2800 | struct sk_buff *skb, struct request_sock *req) | |
2801 | { | |
2802 | return 0; | |
2803 | } | |
2804 | ||
2805 | static inline void security_inet_csk_clone(struct sock *newsk, | |
2806 | const struct request_sock *req) | |
2807 | { | |
2808 | } | |
6b877699 VY |
2809 | |
2810 | static inline void security_inet_conn_established(struct sock *sk, | |
2811 | struct sk_buff *skb) | |
2812 | { | |
2813 | } | |
2b980dbd | 2814 | |
2606fd1f EP |
2815 | static inline int security_secmark_relabel_packet(u32 secid) |
2816 | { | |
2817 | return 0; | |
2818 | } | |
2819 | ||
2820 | static inline void security_secmark_refcount_inc(void) | |
2821 | { | |
2822 | } | |
2823 | ||
2824 | static inline void security_secmark_refcount_dec(void) | |
2825 | { | |
2826 | } | |
2827 | ||
5dbbaf2d PM |
2828 | static inline int security_tun_dev_alloc_security(void **security) |
2829 | { | |
2830 | return 0; | |
2831 | } | |
2832 | ||
2833 | static inline void security_tun_dev_free_security(void *security) | |
2834 | { | |
2835 | } | |
2836 | ||
2b980dbd PM |
2837 | static inline int security_tun_dev_create(void) |
2838 | { | |
2839 | return 0; | |
2840 | } | |
2841 | ||
5dbbaf2d PM |
2842 | static inline int security_tun_dev_attach_queue(void *security) |
2843 | { | |
2844 | return 0; | |
2845 | } | |
2846 | ||
2847 | static inline int security_tun_dev_attach(struct sock *sk, void *security) | |
2b980dbd | 2848 | { |
5dbbaf2d | 2849 | return 0; |
2b980dbd PM |
2850 | } |
2851 | ||
5dbbaf2d | 2852 | static inline int security_tun_dev_open(void *security) |
2b980dbd PM |
2853 | { |
2854 | return 0; | |
2855 | } | |
ca10b9e9 ED |
2856 | |
2857 | static inline void security_skb_owned_by(struct sk_buff *skb, struct sock *sk) | |
2858 | { | |
2859 | } | |
2860 | ||
1da177e4 LT |
2861 | #endif /* CONFIG_SECURITY_NETWORK */ |
2862 | ||
df71837d | 2863 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
beb8d13b | 2864 | |
52a4c640 NA |
2865 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, |
2866 | struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); | |
03e1ad7b PM |
2867 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); |
2868 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); | |
2869 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); | |
20510f2f JM |
2870 | int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); |
2871 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2872 | struct xfrm_sec_ctx *polsec, u32 secid); | |
2873 | int security_xfrm_state_delete(struct xfrm_state *x); | |
2874 | void security_xfrm_state_free(struct xfrm_state *x); | |
03e1ad7b | 2875 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
20510f2f | 2876 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, |
e33f7704 DM |
2877 | struct xfrm_policy *xp, |
2878 | const struct flowi *fl); | |
20510f2f JM |
2879 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); |
2880 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl); | |
beb8d13b | 2881 | |
df71837d | 2882 | #else /* CONFIG_SECURITY_NETWORK_XFRM */ |
20510f2f | 2883 | |
52a4c640 NA |
2884 | static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, |
2885 | struct xfrm_user_sec_ctx *sec_ctx, | |
2886 | gfp_t gfp) | |
df71837d TJ |
2887 | { |
2888 | return 0; | |
2889 | } | |
2890 | ||
03e1ad7b | 2891 | static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) |
df71837d TJ |
2892 | { |
2893 | return 0; | |
2894 | } | |
2895 | ||
03e1ad7b | 2896 | static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
df71837d TJ |
2897 | { |
2898 | } | |
2899 | ||
03e1ad7b | 2900 | static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
c8c05a8e CZ |
2901 | { |
2902 | return 0; | |
2903 | } | |
2904 | ||
e0d1caa7 VY |
2905 | static inline int security_xfrm_state_alloc(struct xfrm_state *x, |
2906 | struct xfrm_user_sec_ctx *sec_ctx) | |
2907 | { | |
2908 | return 0; | |
2909 | } | |
2910 | ||
2911 | static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2912 | struct xfrm_sec_ctx *polsec, u32 secid) | |
df71837d TJ |
2913 | { |
2914 | return 0; | |
2915 | } | |
2916 | ||
2917 | static inline void security_xfrm_state_free(struct xfrm_state *x) | |
2918 | { | |
2919 | } | |
2920 | ||
6f68dc37 | 2921 | static inline int security_xfrm_state_delete(struct xfrm_state *x) |
c8c05a8e CZ |
2922 | { |
2923 | return 0; | |
2924 | } | |
2925 | ||
03e1ad7b | 2926 | static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
df71837d TJ |
2927 | { |
2928 | return 0; | |
2929 | } | |
e0d1caa7 VY |
2930 | |
2931 | static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
e33f7704 | 2932 | struct xfrm_policy *xp, const struct flowi *fl) |
e0d1caa7 VY |
2933 | { |
2934 | return 1; | |
2935 | } | |
2936 | ||
beb8d13b | 2937 | static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) |
e0d1caa7 VY |
2938 | { |
2939 | return 0; | |
2940 | } | |
2941 | ||
beb8d13b VY |
2942 | static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) |
2943 | { | |
2944 | } | |
2945 | ||
df71837d TJ |
2946 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
2947 | ||
be6d3e56 KT |
2948 | #ifdef CONFIG_SECURITY_PATH |
2949 | int security_path_unlink(struct path *dir, struct dentry *dentry); | |
4572befe | 2950 | int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode); |
be6d3e56 | 2951 | int security_path_rmdir(struct path *dir, struct dentry *dentry); |
04fc66e7 | 2952 | int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode, |
be6d3e56 | 2953 | unsigned int dev); |
ea0d3ab2 | 2954 | int security_path_truncate(struct path *path); |
be6d3e56 KT |
2955 | int security_path_symlink(struct path *dir, struct dentry *dentry, |
2956 | const char *old_name); | |
2957 | int security_path_link(struct dentry *old_dentry, struct path *new_dir, | |
2958 | struct dentry *new_dentry); | |
2959 | int security_path_rename(struct path *old_dir, struct dentry *old_dentry, | |
0b3974eb MS |
2960 | struct path *new_dir, struct dentry *new_dentry, |
2961 | unsigned int flags); | |
cdcf116d | 2962 | int security_path_chmod(struct path *path, umode_t mode); |
d2b31ca6 | 2963 | int security_path_chown(struct path *path, kuid_t uid, kgid_t gid); |
8b8efb44 | 2964 | int security_path_chroot(struct path *path); |
be6d3e56 KT |
2965 | #else /* CONFIG_SECURITY_PATH */ |
2966 | static inline int security_path_unlink(struct path *dir, struct dentry *dentry) | |
2967 | { | |
2968 | return 0; | |
2969 | } | |
2970 | ||
2971 | static inline int security_path_mkdir(struct path *dir, struct dentry *dentry, | |
4572befe | 2972 | umode_t mode) |
be6d3e56 KT |
2973 | { |
2974 | return 0; | |
2975 | } | |
2976 | ||
2977 | static inline int security_path_rmdir(struct path *dir, struct dentry *dentry) | |
2978 | { | |
2979 | return 0; | |
2980 | } | |
2981 | ||
2982 | static inline int security_path_mknod(struct path *dir, struct dentry *dentry, | |
04fc66e7 | 2983 | umode_t mode, unsigned int dev) |
be6d3e56 KT |
2984 | { |
2985 | return 0; | |
2986 | } | |
2987 | ||
ea0d3ab2 | 2988 | static inline int security_path_truncate(struct path *path) |
be6d3e56 KT |
2989 | { |
2990 | return 0; | |
2991 | } | |
2992 | ||
2993 | static inline int security_path_symlink(struct path *dir, struct dentry *dentry, | |
2994 | const char *old_name) | |
2995 | { | |
2996 | return 0; | |
2997 | } | |
2998 | ||
2999 | static inline int security_path_link(struct dentry *old_dentry, | |
3000 | struct path *new_dir, | |
3001 | struct dentry *new_dentry) | |
3002 | { | |
3003 | return 0; | |
3004 | } | |
3005 | ||
3006 | static inline int security_path_rename(struct path *old_dir, | |
3007 | struct dentry *old_dentry, | |
3008 | struct path *new_dir, | |
0b3974eb MS |
3009 | struct dentry *new_dentry, |
3010 | unsigned int flags) | |
be6d3e56 KT |
3011 | { |
3012 | return 0; | |
3013 | } | |
89eda068 | 3014 | |
cdcf116d | 3015 | static inline int security_path_chmod(struct path *path, umode_t mode) |
89eda068 TH |
3016 | { |
3017 | return 0; | |
3018 | } | |
3019 | ||
d2b31ca6 | 3020 | static inline int security_path_chown(struct path *path, kuid_t uid, kgid_t gid) |
89eda068 TH |
3021 | { |
3022 | return 0; | |
3023 | } | |
8b8efb44 TH |
3024 | |
3025 | static inline int security_path_chroot(struct path *path) | |
3026 | { | |
3027 | return 0; | |
3028 | } | |
be6d3e56 KT |
3029 | #endif /* CONFIG_SECURITY_PATH */ |
3030 | ||
29db9190 DH |
3031 | #ifdef CONFIG_KEYS |
3032 | #ifdef CONFIG_SECURITY | |
29db9190 | 3033 | |
d84f4f99 | 3034 | int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); |
20510f2f JM |
3035 | void security_key_free(struct key *key); |
3036 | int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 3037 | const struct cred *cred, key_perm_t perm); |
70a5bb72 | 3038 | int security_key_getsecurity(struct key *key, char **_buffer); |
29db9190 DH |
3039 | |
3040 | #else | |
3041 | ||
d720024e | 3042 | static inline int security_key_alloc(struct key *key, |
d84f4f99 | 3043 | const struct cred *cred, |
7e047ef5 | 3044 | unsigned long flags) |
29db9190 DH |
3045 | { |
3046 | return 0; | |
3047 | } | |
3048 | ||
3049 | static inline void security_key_free(struct key *key) | |
3050 | { | |
3051 | } | |
3052 | ||
3053 | static inline int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 3054 | const struct cred *cred, |
29db9190 DH |
3055 | key_perm_t perm) |
3056 | { | |
3057 | return 0; | |
3058 | } | |
3059 | ||
70a5bb72 DH |
3060 | static inline int security_key_getsecurity(struct key *key, char **_buffer) |
3061 | { | |
3062 | *_buffer = NULL; | |
3063 | return 0; | |
be1d6a5f | 3064 | } |
ee18d64c | 3065 | |
29db9190 DH |
3066 | #endif |
3067 | #endif /* CONFIG_KEYS */ | |
3068 | ||
03d37d25 AD |
3069 | #ifdef CONFIG_AUDIT |
3070 | #ifdef CONFIG_SECURITY | |
3071 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule); | |
3072 | int security_audit_rule_known(struct audit_krule *krule); | |
3073 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
3074 | struct audit_context *actx); | |
3075 | void security_audit_rule_free(void *lsmrule); | |
3076 | ||
3077 | #else | |
3078 | ||
3079 | static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, | |
3080 | void **lsmrule) | |
3081 | { | |
3082 | return 0; | |
3083 | } | |
3084 | ||
3085 | static inline int security_audit_rule_known(struct audit_krule *krule) | |
3086 | { | |
3087 | return 0; | |
3088 | } | |
3089 | ||
3090 | static inline int security_audit_rule_match(u32 secid, u32 field, u32 op, | |
3091 | void *lsmrule, struct audit_context *actx) | |
3092 | { | |
3093 | return 0; | |
3094 | } | |
3095 | ||
3096 | static inline void security_audit_rule_free(void *lsmrule) | |
3097 | { } | |
3098 | ||
3099 | #endif /* CONFIG_SECURITY */ | |
3100 | #endif /* CONFIG_AUDIT */ | |
3101 | ||
da31894e EP |
3102 | #ifdef CONFIG_SECURITYFS |
3103 | ||
52ef0c04 | 3104 | extern struct dentry *securityfs_create_file(const char *name, umode_t mode, |
da31894e EP |
3105 | struct dentry *parent, void *data, |
3106 | const struct file_operations *fops); | |
3107 | extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); | |
3108 | extern void securityfs_remove(struct dentry *dentry); | |
3109 | ||
3110 | #else /* CONFIG_SECURITYFS */ | |
3111 | ||
3112 | static inline struct dentry *securityfs_create_dir(const char *name, | |
3113 | struct dentry *parent) | |
3114 | { | |
3115 | return ERR_PTR(-ENODEV); | |
3116 | } | |
3117 | ||
3118 | static inline struct dentry *securityfs_create_file(const char *name, | |
52ef0c04 | 3119 | umode_t mode, |
da31894e EP |
3120 | struct dentry *parent, |
3121 | void *data, | |
3122 | const struct file_operations *fops) | |
3123 | { | |
3124 | return ERR_PTR(-ENODEV); | |
3125 | } | |
3126 | ||
3127 | static inline void securityfs_remove(struct dentry *dentry) | |
3128 | {} | |
3129 | ||
3130 | #endif | |
3131 | ||
3d544f41 PE |
3132 | #ifdef CONFIG_SECURITY |
3133 | ||
3134 | static inline char *alloc_secdata(void) | |
3135 | { | |
3136 | return (char *)get_zeroed_page(GFP_KERNEL); | |
3137 | } | |
3138 | ||
3139 | static inline void free_secdata(void *secdata) | |
3140 | { | |
3141 | free_page((unsigned long)secdata); | |
3142 | } | |
3143 | ||
3144 | #else | |
3145 | ||
3146 | static inline char *alloc_secdata(void) | |
3147 | { | |
3148 | return (char *)1; | |
3149 | } | |
3150 | ||
3151 | static inline void free_secdata(void *secdata) | |
3152 | { } | |
3153 | #endif /* CONFIG_SECURITY */ | |
3154 | ||
c6993e4a KC |
3155 | #ifdef CONFIG_SECURITY_YAMA |
3156 | extern int yama_ptrace_access_check(struct task_struct *child, | |
3157 | unsigned int mode); | |
3158 | extern int yama_ptrace_traceme(struct task_struct *parent); | |
3159 | extern void yama_task_free(struct task_struct *task); | |
3160 | extern int yama_task_prctl(int option, unsigned long arg2, unsigned long arg3, | |
3161 | unsigned long arg4, unsigned long arg5); | |
3162 | #else | |
3163 | static inline int yama_ptrace_access_check(struct task_struct *child, | |
3164 | unsigned int mode) | |
3165 | { | |
3166 | return 0; | |
3167 | } | |
3168 | ||
3169 | static inline int yama_ptrace_traceme(struct task_struct *parent) | |
3170 | { | |
3171 | return 0; | |
3172 | } | |
3173 | ||
3174 | static inline void yama_task_free(struct task_struct *task) | |
3175 | { | |
3176 | } | |
3177 | ||
3178 | static inline int yama_task_prctl(int option, unsigned long arg2, | |
3179 | unsigned long arg3, unsigned long arg4, | |
3180 | unsigned long arg5) | |
3181 | { | |
3182 | return -ENOSYS; | |
3183 | } | |
3184 | #endif /* CONFIG_SECURITY_YAMA */ | |
3185 | ||
1da177e4 LT |
3186 | #endif /* ! __LINUX_SECURITY_H */ |
3187 |