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 | ||
25 | #include <linux/fs.h> | |
c4ec54b4 | 26 | #include <linux/fsnotify.h> |
1da177e4 | 27 | #include <linux/binfmts.h> |
2a7dba39 | 28 | #include <linux/dcache.h> |
1da177e4 LT |
29 | #include <linux/signal.h> |
30 | #include <linux/resource.h> | |
31 | #include <linux/sem.h> | |
32 | #include <linux/shm.h> | |
a2551df7 | 33 | #include <linux/mm.h> /* PAGE_ALIGN */ |
1da177e4 LT |
34 | #include <linux/msg.h> |
35 | #include <linux/sched.h> | |
29db9190 | 36 | #include <linux/key.h> |
e0d1caa7 | 37 | #include <linux/xfrm.h> |
5a0e3ad6 | 38 | #include <linux/slab.h> |
beb8d13b | 39 | #include <net/flow.h> |
1da177e4 | 40 | |
076c54c5 AD |
41 | /* Maximum number of letters for an LSM name string */ |
42 | #define SECURITY_NAME_MAX 10 | |
43 | ||
06112163 EP |
44 | /* If capable should audit the security request */ |
45 | #define SECURITY_CAP_NOAUDIT 0 | |
46 | #define SECURITY_CAP_AUDIT 1 | |
47 | ||
1da177e4 | 48 | struct ctl_table; |
03d37d25 | 49 | struct audit_krule; |
3486740a | 50 | struct user_namespace; |
1da177e4 LT |
51 | |
52 | /* | |
53 | * These functions are in security/capability.c and are used | |
54 | * as the default capabilities functions | |
55 | */ | |
6a9de491 EP |
56 | extern int cap_capable(const struct cred *cred, struct user_namespace *ns, |
57 | int cap, int audit); | |
1e6d7679 | 58 | extern int cap_settime(const struct timespec *ts, const struct timezone *tz); |
9e48858f | 59 | extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 60 | extern int cap_ptrace_traceme(struct task_struct *parent); |
7b41b173 | 61 | extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); |
d84f4f99 DH |
62 | extern int cap_capset(struct cred *new, const struct cred *old, |
63 | const kernel_cap_t *effective, | |
64 | const kernel_cap_t *inheritable, | |
65 | const kernel_cap_t *permitted); | |
a6f76f23 | 66 | extern int cap_bprm_set_creds(struct linux_binprm *bprm); |
1da177e4 | 67 | extern int cap_bprm_secureexec(struct linux_binprm *bprm); |
8f0cfa52 DH |
68 | extern int cap_inode_setxattr(struct dentry *dentry, const char *name, |
69 | const void *value, size_t size, int flags); | |
70 | extern int cap_inode_removexattr(struct dentry *dentry, const char *name); | |
b5376771 SH |
71 | extern int cap_inode_need_killpriv(struct dentry *dentry); |
72 | extern int cap_inode_killpriv(struct dentry *dentry); | |
7c73875e EP |
73 | extern int cap_file_mmap(struct file *file, unsigned long reqprot, |
74 | unsigned long prot, unsigned long flags, | |
75 | unsigned long addr, unsigned long addr_only); | |
d84f4f99 | 76 | extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); |
3898b1b4 | 77 | extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 78 | unsigned long arg4, unsigned long arg5); |
b0ae1981 | 79 | extern int cap_task_setscheduler(struct task_struct *p); |
7b41b173 EP |
80 | extern int cap_task_setioprio(struct task_struct *p, int ioprio); |
81 | extern int cap_task_setnice(struct task_struct *p, int nice); | |
20510f2f | 82 | extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); |
1da177e4 LT |
83 | |
84 | struct msghdr; | |
85 | struct sk_buff; | |
86 | struct sock; | |
87 | struct sockaddr; | |
88 | struct socket; | |
df71837d TJ |
89 | struct flowi; |
90 | struct dst_entry; | |
91 | struct xfrm_selector; | |
92 | struct xfrm_policy; | |
93 | struct xfrm_state; | |
94 | struct xfrm_user_sec_ctx; | |
2069f457 | 95 | struct seq_file; |
1da177e4 LT |
96 | |
97 | extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb); | |
c7bdb545 | 98 | extern int cap_netlink_recv(struct sk_buff *skb, int cap); |
1da177e4 | 99 | |
189b3b1c | 100 | void reset_security_ops(void); |
101 | ||
6e141546 | 102 | #ifdef CONFIG_MMU |
ed032189 | 103 | extern unsigned long mmap_min_addr; |
a2551df7 | 104 | extern unsigned long dac_mmap_min_addr; |
6e141546 DH |
105 | #else |
106 | #define dac_mmap_min_addr 0UL | |
107 | #endif | |
108 | ||
1da177e4 LT |
109 | /* |
110 | * Values used in the task_security_ops calls | |
111 | */ | |
112 | /* setuid or setgid, id0 == uid or gid */ | |
113 | #define LSM_SETID_ID 1 | |
114 | ||
115 | /* setreuid or setregid, id0 == real, id1 == eff */ | |
116 | #define LSM_SETID_RE 2 | |
117 | ||
118 | /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ | |
119 | #define LSM_SETID_RES 4 | |
120 | ||
121 | /* setfsuid or setfsgid, id0 == fsuid or fsgid */ | |
122 | #define LSM_SETID_FS 8 | |
123 | ||
124 | /* forward declares to avoid warnings */ | |
1da177e4 | 125 | struct sched_param; |
4237c75c | 126 | struct request_sock; |
1da177e4 | 127 | |
a6f76f23 | 128 | /* bprm->unsafe reasons */ |
1da177e4 LT |
129 | #define LSM_UNSAFE_SHARE 1 |
130 | #define LSM_UNSAFE_PTRACE 2 | |
131 | #define LSM_UNSAFE_PTRACE_CAP 4 | |
132 | ||
6e141546 | 133 | #ifdef CONFIG_MMU |
47d439e9 EP |
134 | /* |
135 | * If a hint addr is less than mmap_min_addr change hint to be as | |
136 | * low as possible but still greater than mmap_min_addr | |
137 | */ | |
138 | static inline unsigned long round_hint_to_min(unsigned long hint) | |
139 | { | |
140 | hint &= PAGE_MASK; | |
141 | if (((void *)hint != NULL) && | |
142 | (hint < mmap_min_addr)) | |
143 | return PAGE_ALIGN(mmap_min_addr); | |
144 | return hint; | |
145 | } | |
8d65af78 | 146 | extern int mmap_min_addr_handler(struct ctl_table *table, int write, |
47d439e9 | 147 | void __user *buffer, size_t *lenp, loff_t *ppos); |
6e141546 | 148 | #endif |
47d439e9 | 149 | |
1da177e4 LT |
150 | #ifdef CONFIG_SECURITY |
151 | ||
e0007529 EP |
152 | struct security_mnt_opts { |
153 | char **mnt_opts; | |
154 | int *mnt_opts_flags; | |
155 | int num_mnt_opts; | |
156 | }; | |
157 | ||
158 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
159 | { | |
160 | opts->mnt_opts = NULL; | |
161 | opts->mnt_opts_flags = NULL; | |
162 | opts->num_mnt_opts = 0; | |
163 | } | |
164 | ||
165 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
166 | { | |
167 | int i; | |
168 | if (opts->mnt_opts) | |
7b41b173 | 169 | for (i = 0; i < opts->num_mnt_opts; i++) |
e0007529 EP |
170 | kfree(opts->mnt_opts[i]); |
171 | kfree(opts->mnt_opts); | |
172 | opts->mnt_opts = NULL; | |
173 | kfree(opts->mnt_opts_flags); | |
174 | opts->mnt_opts_flags = NULL; | |
175 | opts->num_mnt_opts = 0; | |
176 | } | |
177 | ||
1da177e4 LT |
178 | /** |
179 | * struct security_operations - main security structure | |
180 | * | |
076c54c5 AD |
181 | * Security module identifier. |
182 | * | |
183 | * @name: | |
184 | * A string that acts as a unique identifeir for the LSM with max number | |
185 | * of characters = SECURITY_NAME_MAX. | |
186 | * | |
1da177e4 LT |
187 | * Security hooks for program execution operations. |
188 | * | |
a6f76f23 | 189 | * @bprm_set_creds: |
1da177e4 LT |
190 | * Save security information in the bprm->security field, typically based |
191 | * on information about the bprm->file, for later use by the apply_creds | |
192 | * hook. This hook may also optionally check permissions (e.g. for | |
193 | * transitions between security domains). | |
194 | * This hook may be called multiple times during a single execve, e.g. for | |
195 | * interpreters. The hook can tell whether it has already been called by | |
196 | * checking to see if @bprm->security is non-NULL. If so, then the hook | |
197 | * may decide either to retain the security information saved earlier or | |
198 | * to replace it. | |
199 | * @bprm contains the linux_binprm structure. | |
200 | * Return 0 if the hook is successful and permission is granted. | |
201 | * @bprm_check_security: | |
a6f76f23 DH |
202 | * This hook mediates the point when a search for a binary handler will |
203 | * begin. It allows a check the @bprm->security value which is set in the | |
204 | * preceding set_creds call. The primary difference from set_creds is | |
205 | * that the argv list and envp list are reliably available in @bprm. This | |
206 | * hook may be called multiple times during a single execve; and in each | |
207 | * pass set_creds is called first. | |
7b41b173 | 208 | * @bprm contains the linux_binprm structure. |
1da177e4 | 209 | * Return 0 if the hook is successful and permission is granted. |
a6f76f23 DH |
210 | * @bprm_committing_creds: |
211 | * Prepare to install the new security attributes of a process being | |
212 | * transformed by an execve operation, based on the old credentials | |
213 | * pointed to by @current->cred and the information set in @bprm->cred by | |
214 | * the bprm_set_creds hook. @bprm points to the linux_binprm structure. | |
215 | * This hook is a good place to perform state changes on the process such | |
216 | * as closing open file descriptors to which access will no longer be | |
217 | * granted when the attributes are changed. This is called immediately | |
218 | * before commit_creds(). | |
219 | * @bprm_committed_creds: | |
220 | * Tidy up after the installation of the new security attributes of a | |
221 | * process being transformed by an execve operation. The new credentials | |
222 | * have, by this point, been set to @current->cred. @bprm points to the | |
223 | * linux_binprm structure. This hook is a good place to perform state | |
224 | * changes on the process such as clearing out non-inheritable signal | |
225 | * state. This is called immediately after commit_creds(). | |
1da177e4 | 226 | * @bprm_secureexec: |
7b41b173 EP |
227 | * Return a boolean value (0 or 1) indicating whether a "secure exec" |
228 | * is required. The flag is passed in the auxiliary table | |
229 | * on the initial stack to the ELF interpreter to indicate whether libc | |
230 | * should enable secure mode. | |
231 | * @bprm contains the linux_binprm structure. | |
1da177e4 LT |
232 | * |
233 | * Security hooks for filesystem operations. | |
234 | * | |
235 | * @sb_alloc_security: | |
236 | * Allocate and attach a security structure to the sb->s_security field. | |
237 | * The s_security field is initialized to NULL when the structure is | |
238 | * allocated. | |
239 | * @sb contains the super_block structure to be modified. | |
240 | * Return 0 if operation was successful. | |
241 | * @sb_free_security: | |
242 | * Deallocate and clear the sb->s_security field. | |
243 | * @sb contains the super_block structure to be modified. | |
244 | * @sb_statfs: | |
726c3342 DH |
245 | * Check permission before obtaining filesystem statistics for the @mnt |
246 | * mountpoint. | |
247 | * @dentry is a handle on the superblock for the filesystem. | |
7b41b173 | 248 | * Return 0 if permission is granted. |
1da177e4 LT |
249 | * @sb_mount: |
250 | * Check permission before an object specified by @dev_name is mounted on | |
251 | * the mount point named by @nd. For an ordinary mount, @dev_name | |
252 | * identifies a device if the file system type requires a device. For a | |
253 | * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a | |
254 | * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the | |
255 | * pathname of the object being mounted. | |
256 | * @dev_name contains the name for object being mounted. | |
b5266eb4 | 257 | * @path contains the path for mount point object. |
1da177e4 LT |
258 | * @type contains the filesystem type. |
259 | * @flags contains the mount flags. | |
260 | * @data contains the filesystem-specific data. | |
261 | * Return 0 if permission is granted. | |
262 | * @sb_copy_data: | |
263 | * Allow mount option data to be copied prior to parsing by the filesystem, | |
264 | * so that the security module can extract security-specific mount | |
265 | * options cleanly (a filesystem may modify the data e.g. with strsep()). | |
266 | * This also allows the original mount data to be stripped of security- | |
267 | * specific options to avoid having to make filesystems aware of them. | |
268 | * @type the type of filesystem being mounted. | |
269 | * @orig the original mount data copied from userspace. | |
270 | * @copy copied data which will be passed to the security module. | |
271 | * Returns 0 if the copy was successful. | |
ff36fe2c EP |
272 | * @sb_remount: |
273 | * Extracts security system specifc mount options and verifys no changes | |
274 | * are being made to those options. | |
275 | * @sb superblock being remounted | |
276 | * @data contains the filesystem-specific data. | |
277 | * Return 0 if permission is granted. | |
1da177e4 LT |
278 | * @sb_umount: |
279 | * Check permission before the @mnt file system is unmounted. | |
280 | * @mnt contains the mounted file system. | |
281 | * @flags contains the unmount flags, e.g. MNT_FORCE. | |
282 | * Return 0 if permission is granted. | |
1da177e4 LT |
283 | * @sb_pivotroot: |
284 | * Check permission before pivoting the root filesystem. | |
b5266eb4 | 285 | * @old_path contains the path for the new location of the current root (put_old). |
7b41b173 | 286 | * @new_path contains the path for the new root (new_root). |
1da177e4 | 287 | * Return 0 if permission is granted. |
c9180a57 EP |
288 | * @sb_set_mnt_opts: |
289 | * Set the security relevant mount options used for a superblock | |
290 | * @sb the superblock to set security mount options for | |
e0007529 | 291 | * @opts binary data structure containing all lsm mount data |
c9180a57 EP |
292 | * @sb_clone_mnt_opts: |
293 | * Copy all security options from a given superblock to another | |
294 | * @oldsb old superblock which contain information to clone | |
295 | * @newsb new superblock which needs filled in | |
e0007529 EP |
296 | * @sb_parse_opts_str: |
297 | * Parse a string of security data filling in the opts structure | |
298 | * @options string containing all mount options known by the LSM | |
299 | * @opts binary data structure usable by the LSM | |
1da177e4 LT |
300 | * |
301 | * Security hooks for inode operations. | |
302 | * | |
303 | * @inode_alloc_security: | |
304 | * Allocate and attach a security structure to @inode->i_security. The | |
305 | * i_security field is initialized to NULL when the inode structure is | |
306 | * allocated. | |
307 | * @inode contains the inode structure. | |
308 | * Return 0 if operation was successful. | |
309 | * @inode_free_security: | |
310 | * @inode contains the inode structure. | |
311 | * Deallocate the inode security structure and set @inode->i_security to | |
7b41b173 | 312 | * NULL. |
5e41ff9e | 313 | * @inode_init_security: |
7b41b173 | 314 | * Obtain the security attribute name suffix and value to set on a newly |
5e41ff9e SS |
315 | * created inode and set up the incore security field for the new inode. |
316 | * This hook is called by the fs code as part of the inode creation | |
317 | * transaction and provides for atomic labeling of the inode, unlike | |
318 | * the post_create/mkdir/... hooks called by the VFS. The hook function | |
319 | * is expected to allocate the name and value via kmalloc, with the caller | |
320 | * being responsible for calling kfree after using them. | |
321 | * If the security module does not use security attributes or does | |
322 | * not wish to put a security attribute on this particular inode, | |
323 | * then it should return -EOPNOTSUPP to skip this processing. | |
324 | * @inode contains the inode structure of the newly created inode. | |
325 | * @dir contains the inode structure of the parent directory. | |
2a7dba39 | 326 | * @qstr contains the last path component of the new object |
5e41ff9e SS |
327 | * @name will be set to the allocated name suffix (e.g. selinux). |
328 | * @value will be set to the allocated attribute value. | |
329 | * @len will be set to the length of the value. | |
330 | * Returns 0 if @name and @value have been successfully set, | |
331 | * -EOPNOTSUPP if no security attribute is needed, or | |
332 | * -ENOMEM on memory allocation failure. | |
1da177e4 LT |
333 | * @inode_create: |
334 | * Check permission to create a regular file. | |
335 | * @dir contains inode structure of the parent of the new file. | |
336 | * @dentry contains the dentry structure for the file to be created. | |
337 | * @mode contains the file mode of the file to be created. | |
338 | * Return 0 if permission is granted. | |
1da177e4 LT |
339 | * @inode_link: |
340 | * Check permission before creating a new hard link to a file. | |
341 | * @old_dentry contains the dentry structure for an existing link to the file. | |
342 | * @dir contains the inode structure of the parent directory of the new link. | |
343 | * @new_dentry contains the dentry structure for the new link. | |
344 | * Return 0 if permission is granted. | |
be6d3e56 KT |
345 | * @path_link: |
346 | * Check permission before creating a new hard link to a file. | |
347 | * @old_dentry contains the dentry structure for an existing link | |
348 | * to the file. | |
349 | * @new_dir contains the path structure of the parent directory of | |
350 | * the new link. | |
351 | * @new_dentry contains the dentry structure for the new link. | |
352 | * Return 0 if permission is granted. | |
1da177e4 | 353 | * @inode_unlink: |
7b41b173 | 354 | * Check the permission to remove a hard link to a file. |
1da177e4 LT |
355 | * @dir contains the inode structure of parent directory of the file. |
356 | * @dentry contains the dentry structure for file to be unlinked. | |
357 | * Return 0 if permission is granted. | |
be6d3e56 KT |
358 | * @path_unlink: |
359 | * Check the permission to remove a hard link to a file. | |
360 | * @dir contains the path structure of parent directory of the file. | |
361 | * @dentry contains the dentry structure for file to be unlinked. | |
362 | * Return 0 if permission is granted. | |
1da177e4 LT |
363 | * @inode_symlink: |
364 | * Check the permission to create a symbolic link to a file. | |
365 | * @dir contains the inode structure of parent directory of the symbolic link. | |
366 | * @dentry contains the dentry structure of the symbolic link. | |
367 | * @old_name contains the pathname of file. | |
368 | * Return 0 if permission is granted. | |
be6d3e56 KT |
369 | * @path_symlink: |
370 | * Check the permission to create a symbolic link to a file. | |
371 | * @dir contains the path structure of parent directory of | |
372 | * the symbolic link. | |
373 | * @dentry contains the dentry structure of the symbolic link. | |
374 | * @old_name contains the pathname of file. | |
375 | * Return 0 if permission is granted. | |
1da177e4 LT |
376 | * @inode_mkdir: |
377 | * Check permissions to create a new directory in the existing directory | |
7b41b173 | 378 | * associated with inode strcture @dir. |
1da177e4 LT |
379 | * @dir containst the inode structure of parent of the directory to be created. |
380 | * @dentry contains the dentry structure of new directory. | |
381 | * @mode contains the mode of new directory. | |
382 | * Return 0 if permission is granted. | |
be6d3e56 KT |
383 | * @path_mkdir: |
384 | * Check permissions to create a new directory in the existing directory | |
385 | * associated with path strcture @path. | |
386 | * @dir containst the path structure of parent of the directory | |
387 | * to be created. | |
388 | * @dentry contains the dentry structure of new directory. | |
389 | * @mode contains the mode of new directory. | |
390 | * Return 0 if permission is granted. | |
1da177e4 LT |
391 | * @inode_rmdir: |
392 | * Check the permission to remove a directory. | |
393 | * @dir contains the inode structure of parent of the directory to be removed. | |
394 | * @dentry contains the dentry structure of directory to be removed. | |
395 | * Return 0 if permission is granted. | |
be6d3e56 KT |
396 | * @path_rmdir: |
397 | * Check the permission to remove a directory. | |
398 | * @dir contains the path structure of parent of the directory to be | |
399 | * removed. | |
400 | * @dentry contains the dentry structure of directory to be removed. | |
401 | * Return 0 if permission is granted. | |
1da177e4 LT |
402 | * @inode_mknod: |
403 | * Check permissions when creating a special file (or a socket or a fifo | |
404 | * file created via the mknod system call). Note that if mknod operation | |
405 | * is being done for a regular file, then the create hook will be called | |
406 | * and not this hook. | |
407 | * @dir contains the inode structure of parent of the new file. | |
408 | * @dentry contains the dentry structure of the new file. | |
409 | * @mode contains the mode of the new file. | |
59c51591 | 410 | * @dev contains the device number. |
1da177e4 | 411 | * Return 0 if permission is granted. |
be6d3e56 KT |
412 | * @path_mknod: |
413 | * Check permissions when creating a file. Note that this hook is called | |
414 | * even if mknod operation is being done for a regular file. | |
415 | * @dir contains the path structure of parent of the new file. | |
416 | * @dentry contains the dentry structure of the new file. | |
417 | * @mode contains the mode of the new file. | |
418 | * @dev contains the undecoded device number. Use new_decode_dev() to get | |
419 | * the decoded device number. | |
420 | * Return 0 if permission is granted. | |
1da177e4 LT |
421 | * @inode_rename: |
422 | * Check for permission to rename a file or directory. | |
423 | * @old_dir contains the inode structure for parent of the old link. | |
424 | * @old_dentry contains the dentry structure of the old link. | |
425 | * @new_dir contains the inode structure for parent of the new link. | |
426 | * @new_dentry contains the dentry structure of the new link. | |
427 | * Return 0 if permission is granted. | |
be6d3e56 KT |
428 | * @path_rename: |
429 | * Check for permission to rename a file or directory. | |
430 | * @old_dir contains the path structure for parent of the old link. | |
431 | * @old_dentry contains the dentry structure of the old link. | |
432 | * @new_dir contains the path structure for parent of the new link. | |
433 | * @new_dentry contains the dentry structure of the new link. | |
434 | * Return 0 if permission is granted. | |
89eda068 TH |
435 | * @path_chmod: |
436 | * Check for permission to change DAC's permission of a file or directory. | |
437 | * @dentry contains the dentry structure. | |
438 | * @mnt contains the vfsmnt structure. | |
439 | * @mode contains DAC's mode. | |
440 | * Return 0 if permission is granted. | |
441 | * @path_chown: | |
442 | * Check for permission to change owner/group of a file or directory. | |
443 | * @path contains the path structure. | |
444 | * @uid contains new owner's ID. | |
445 | * @gid contains new group's ID. | |
446 | * Return 0 if permission is granted. | |
8b8efb44 TH |
447 | * @path_chroot: |
448 | * Check for permission to change root directory. | |
449 | * @path contains the path structure. | |
450 | * Return 0 if permission is granted. | |
1da177e4 LT |
451 | * @inode_readlink: |
452 | * Check the permission to read the symbolic link. | |
453 | * @dentry contains the dentry structure for the file link. | |
454 | * Return 0 if permission is granted. | |
455 | * @inode_follow_link: | |
456 | * Check permission to follow a symbolic link when looking up a pathname. | |
457 | * @dentry contains the dentry structure for the link. | |
458 | * @nd contains the nameidata structure for the parent directory. | |
459 | * Return 0 if permission is granted. | |
460 | * @inode_permission: | |
461 | * Check permission before accessing an inode. This hook is called by the | |
462 | * existing Linux permission function, so a security module can use it to | |
463 | * provide additional checking for existing Linux permission checks. | |
464 | * Notice that this hook is called when a file is opened (as well as many | |
465 | * other operations), whereas the file_security_ops permission hook is | |
466 | * called when the actual read/write operations are performed. | |
467 | * @inode contains the inode structure to check. | |
468 | * @mask contains the permission mask. | |
1da177e4 LT |
469 | * Return 0 if permission is granted. |
470 | * @inode_setattr: | |
471 | * Check permission before setting file attributes. Note that the kernel | |
472 | * call to notify_change is performed from several locations, whenever | |
473 | * file attributes change (such as when a file is truncated, chown/chmod | |
474 | * operations, transferring disk quotas, etc). | |
475 | * @dentry contains the dentry structure for the file. | |
476 | * @attr is the iattr structure containing the new file attributes. | |
477 | * Return 0 if permission is granted. | |
be6d3e56 KT |
478 | * @path_truncate: |
479 | * Check permission before truncating a file. | |
480 | * @path contains the path structure for the file. | |
be6d3e56 | 481 | * Return 0 if permission is granted. |
1da177e4 LT |
482 | * @inode_getattr: |
483 | * Check permission before obtaining file attributes. | |
484 | * @mnt is the vfsmount where the dentry was looked up | |
485 | * @dentry contains the dentry structure for the file. | |
486 | * Return 0 if permission is granted. | |
1da177e4 | 487 | * @inode_setxattr: |
7b41b173 EP |
488 | * Check permission before setting the extended attributes |
489 | * @value identified by @name for @dentry. | |
490 | * Return 0 if permission is granted. | |
1da177e4 | 491 | * @inode_post_setxattr: |
7b41b173 EP |
492 | * Update inode security field after successful setxattr operation. |
493 | * @value identified by @name for @dentry. | |
1da177e4 | 494 | * @inode_getxattr: |
7b41b173 EP |
495 | * Check permission before obtaining the extended attributes |
496 | * identified by @name for @dentry. | |
497 | * Return 0 if permission is granted. | |
1da177e4 | 498 | * @inode_listxattr: |
7b41b173 EP |
499 | * Check permission before obtaining the list of extended attribute |
500 | * names for @dentry. | |
501 | * Return 0 if permission is granted. | |
1da177e4 | 502 | * @inode_removexattr: |
7b41b173 EP |
503 | * Check permission before removing the extended attribute |
504 | * identified by @name for @dentry. | |
505 | * Return 0 if permission is granted. | |
1da177e4 | 506 | * @inode_getsecurity: |
42492594 DQ |
507 | * Retrieve a copy of the extended attribute representation of the |
508 | * security label associated with @name for @inode via @buffer. Note that | |
509 | * @name is the remainder of the attribute name after the security prefix | |
510 | * has been removed. @alloc is used to specify of the call should return a | |
511 | * value via the buffer or just the value length Return size of buffer on | |
512 | * success. | |
1da177e4 LT |
513 | * @inode_setsecurity: |
514 | * Set the security label associated with @name for @inode from the | |
515 | * extended attribute value @value. @size indicates the size of the | |
516 | * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0. | |
7b41b173 | 517 | * Note that @name is the remainder of the attribute name after the |
1da177e4 LT |
518 | * security. prefix has been removed. |
519 | * Return 0 on success. | |
520 | * @inode_listsecurity: | |
521 | * Copy the extended attribute names for the security labels | |
522 | * associated with @inode into @buffer. The maximum size of @buffer | |
523 | * is specified by @buffer_size. @buffer may be NULL to request | |
524 | * the size of the buffer required. | |
525 | * Returns number of bytes used/required on success. | |
b5376771 SH |
526 | * @inode_need_killpriv: |
527 | * Called when an inode has been changed. | |
528 | * @dentry is the dentry being changed. | |
529 | * Return <0 on error to abort the inode change operation. | |
530 | * Return 0 if inode_killpriv does not need to be called. | |
531 | * Return >0 if inode_killpriv does need to be called. | |
532 | * @inode_killpriv: | |
533 | * The setuid bit is being removed. Remove similar security labels. | |
534 | * Called with the dentry->d_inode->i_mutex held. | |
535 | * @dentry is the dentry being changed. | |
536 | * Return 0 on success. If error is returned, then the operation | |
537 | * causing setuid bit removal is failed. | |
8a076191 AD |
538 | * @inode_getsecid: |
539 | * Get the secid associated with the node. | |
540 | * @inode contains a pointer to the inode. | |
541 | * @secid contains a pointer to the location where result will be saved. | |
542 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
543 | * |
544 | * Security hooks for file operations | |
545 | * | |
546 | * @file_permission: | |
547 | * Check file permissions before accessing an open file. This hook is | |
548 | * called by various operations that read or write files. A security | |
549 | * module can use this hook to perform additional checking on these | |
550 | * operations, e.g. to revalidate permissions on use to support privilege | |
551 | * bracketing or policy changes. Notice that this hook is used when the | |
552 | * actual read/write operations are performed, whereas the | |
553 | * inode_security_ops hook is called when a file is opened (as well as | |
554 | * many other operations). | |
555 | * Caveat: Although this hook can be used to revalidate permissions for | |
556 | * various system call operations that read or write files, it does not | |
557 | * address the revalidation of permissions for memory-mapped files. | |
558 | * Security modules must handle this separately if they need such | |
559 | * revalidation. | |
560 | * @file contains the file structure being accessed. | |
561 | * @mask contains the requested permissions. | |
562 | * Return 0 if permission is granted. | |
563 | * @file_alloc_security: | |
564 | * Allocate and attach a security structure to the file->f_security field. | |
565 | * The security field is initialized to NULL when the structure is first | |
566 | * created. | |
567 | * @file contains the file structure to secure. | |
568 | * Return 0 if the hook is successful and permission is granted. | |
569 | * @file_free_security: | |
570 | * Deallocate and free any security structures stored in file->f_security. | |
571 | * @file contains the file structure being modified. | |
572 | * @file_ioctl: | |
573 | * @file contains the file structure. | |
574 | * @cmd contains the operation to perform. | |
575 | * @arg contains the operational arguments. | |
576 | * Check permission for an ioctl operation on @file. Note that @arg can | |
577 | * sometimes represents a user space pointer; in other cases, it may be a | |
578 | * simple integer value. When @arg represents a user space pointer, it | |
579 | * should never be used by the security module. | |
580 | * Return 0 if permission is granted. | |
581 | * @file_mmap : | |
582 | * Check permissions for a mmap operation. The @file may be NULL, e.g. | |
583 | * if mapping anonymous memory. | |
584 | * @file contains the file structure for file to map (may be NULL). | |
585 | * @reqprot contains the protection requested by the application. | |
586 | * @prot contains the protection that will be applied by the kernel. | |
587 | * @flags contains the operational flags. | |
588 | * Return 0 if permission is granted. | |
589 | * @file_mprotect: | |
590 | * Check permissions before changing memory access permissions. | |
591 | * @vma contains the memory region to modify. | |
592 | * @reqprot contains the protection requested by the application. | |
593 | * @prot contains the protection that will be applied by the kernel. | |
594 | * Return 0 if permission is granted. | |
595 | * @file_lock: | |
596 | * Check permission before performing file locking operations. | |
597 | * Note: this hook mediates both flock and fcntl style locks. | |
598 | * @file contains the file structure. | |
599 | * @cmd contains the posix-translated lock operation to perform | |
600 | * (e.g. F_RDLCK, F_WRLCK). | |
601 | * Return 0 if permission is granted. | |
602 | * @file_fcntl: | |
603 | * Check permission before allowing the file operation specified by @cmd | |
604 | * from being performed on the file @file. Note that @arg can sometimes | |
605 | * represents a user space pointer; in other cases, it may be a simple | |
606 | * integer value. When @arg represents a user space pointer, it should | |
607 | * never be used by the security module. | |
608 | * @file contains the file structure. | |
609 | * @cmd contains the operation to be performed. | |
610 | * @arg contains the operational arguments. | |
611 | * Return 0 if permission is granted. | |
612 | * @file_set_fowner: | |
613 | * Save owner security information (typically from current->security) in | |
614 | * file->f_security for later use by the send_sigiotask hook. | |
615 | * @file contains the file structure to update. | |
616 | * Return 0 on success. | |
617 | * @file_send_sigiotask: | |
618 | * Check permission for the file owner @fown to send SIGIO or SIGURG to the | |
619 | * process @tsk. Note that this hook is sometimes called from interrupt. | |
620 | * Note that the fown_struct, @fown, is never outside the context of a | |
621 | * struct file, so the file structure (and associated security information) | |
622 | * can always be obtained: | |
b385a144 | 623 | * container_of(fown, struct file, f_owner) |
7b41b173 | 624 | * @tsk contains the structure of task receiving signal. |
1da177e4 LT |
625 | * @fown contains the file owner information. |
626 | * @sig is the signal that will be sent. When 0, kernel sends SIGIO. | |
627 | * Return 0 if permission is granted. | |
628 | * @file_receive: | |
629 | * This hook allows security modules to control the ability of a process | |
630 | * to receive an open file descriptor via socket IPC. | |
631 | * @file contains the file structure being received. | |
632 | * Return 0 if permission is granted. | |
633 | * | |
788e7dd4 YN |
634 | * Security hook for dentry |
635 | * | |
636 | * @dentry_open | |
637 | * Save open-time permission checking state for later use upon | |
638 | * file_permission, and recheck access if anything has changed | |
639 | * since inode_permission. | |
640 | * | |
1da177e4 LT |
641 | * Security hooks for task operations. |
642 | * | |
643 | * @task_create: | |
644 | * Check permission before creating a child process. See the clone(2) | |
645 | * manual page for definitions of the @clone_flags. | |
646 | * @clone_flags contains the flags indicating what should be shared. | |
647 | * Return 0 if permission is granted. | |
ee18d64c DH |
648 | * @cred_alloc_blank: |
649 | * @cred points to the credentials. | |
650 | * @gfp indicates the atomicity of any memory allocations. | |
651 | * Only allocate sufficient memory and attach to @cred such that | |
652 | * cred_transfer() will not get ENOMEM. | |
f1752eec DH |
653 | * @cred_free: |
654 | * @cred points to the credentials. | |
655 | * Deallocate and clear the cred->security field in a set of credentials. | |
d84f4f99 DH |
656 | * @cred_prepare: |
657 | * @new points to the new credentials. | |
658 | * @old points to the original credentials. | |
659 | * @gfp indicates the atomicity of any memory allocations. | |
660 | * Prepare a new set of credentials by copying the data from the old set. | |
ee18d64c DH |
661 | * @cred_transfer: |
662 | * @new points to the new credentials. | |
663 | * @old points to the original credentials. | |
664 | * Transfer data from original creds to new creds | |
3a3b7ce9 DH |
665 | * @kernel_act_as: |
666 | * Set the credentials for a kernel service to act as (subjective context). | |
667 | * @new points to the credentials to be modified. | |
668 | * @secid specifies the security ID to be set | |
669 | * The current task must be the one that nominated @secid. | |
670 | * Return 0 if successful. | |
671 | * @kernel_create_files_as: | |
672 | * Set the file creation context in a set of credentials to be the same as | |
673 | * the objective context of the specified inode. | |
674 | * @new points to the credentials to be modified. | |
675 | * @inode points to the inode to use as a reference. | |
676 | * The current task must be the one that nominated @inode. | |
677 | * Return 0 if successful. | |
9188499c EP |
678 | * @kernel_module_request: |
679 | * Ability to trigger the kernel to automatically upcall to userspace for | |
680 | * userspace to load a kernel module with the given name. | |
dd8dbf2e | 681 | * @kmod_name name of the module requested by the kernel |
f322abf8 | 682 | * Return 0 if successful. |
d84f4f99 | 683 | * @task_fix_setuid: |
1da177e4 LT |
684 | * Update the module's state after setting one or more of the user |
685 | * identity attributes of the current process. The @flags parameter | |
686 | * indicates which of the set*uid system calls invoked this hook. If | |
d84f4f99 DH |
687 | * @new is the set of credentials that will be installed. Modifications |
688 | * should be made to this rather than to @current->cred. | |
689 | * @old is the set of credentials that are being replaces | |
1da177e4 LT |
690 | * @flags contains one of the LSM_SETID_* values. |
691 | * Return 0 on success. | |
1da177e4 LT |
692 | * @task_setpgid: |
693 | * Check permission before setting the process group identifier of the | |
694 | * process @p to @pgid. | |
695 | * @p contains the task_struct for process being modified. | |
696 | * @pgid contains the new pgid. | |
697 | * Return 0 if permission is granted. | |
698 | * @task_getpgid: | |
699 | * Check permission before getting the process group identifier of the | |
700 | * process @p. | |
701 | * @p contains the task_struct for the process. | |
702 | * Return 0 if permission is granted. | |
703 | * @task_getsid: | |
704 | * Check permission before getting the session identifier of the process | |
705 | * @p. | |
706 | * @p contains the task_struct for the process. | |
707 | * Return 0 if permission is granted. | |
f9008e4c DQ |
708 | * @task_getsecid: |
709 | * Retrieve the security identifier of the process @p. | |
710 | * @p contains the task_struct for the process and place is into @secid. | |
8a076191 AD |
711 | * In case of failure, @secid will be set to zero. |
712 | * | |
1da177e4 LT |
713 | * @task_setnice: |
714 | * Check permission before setting the nice value of @p to @nice. | |
715 | * @p contains the task_struct of process. | |
716 | * @nice contains the new nice value. | |
717 | * Return 0 if permission is granted. | |
03e68060 JM |
718 | * @task_setioprio |
719 | * Check permission before setting the ioprio value of @p to @ioprio. | |
720 | * @p contains the task_struct of process. | |
721 | * @ioprio contains the new ioprio value | |
722 | * Return 0 if permission is granted. | |
a1836a42 DQ |
723 | * @task_getioprio |
724 | * Check permission before getting the ioprio value of @p. | |
725 | * @p contains the task_struct of process. | |
726 | * Return 0 if permission is granted. | |
1da177e4 LT |
727 | * @task_setrlimit: |
728 | * Check permission before setting the resource limits of the current | |
729 | * process for @resource to @new_rlim. The old resource limit values can | |
730 | * be examined by dereferencing (current->signal->rlim + resource). | |
731 | * @resource contains the resource whose limit is being set. | |
732 | * @new_rlim contains the new limits for @resource. | |
733 | * Return 0 if permission is granted. | |
734 | * @task_setscheduler: | |
735 | * Check permission before setting scheduling policy and/or parameters of | |
736 | * process @p based on @policy and @lp. | |
737 | * @p contains the task_struct for process. | |
738 | * @policy contains the scheduling policy. | |
739 | * @lp contains the scheduling parameters. | |
740 | * Return 0 if permission is granted. | |
741 | * @task_getscheduler: | |
742 | * Check permission before obtaining scheduling information for process | |
743 | * @p. | |
744 | * @p contains the task_struct for process. | |
745 | * Return 0 if permission is granted. | |
35601547 DQ |
746 | * @task_movememory |
747 | * Check permission before moving memory owned by process @p. | |
748 | * @p contains the task_struct for process. | |
749 | * Return 0 if permission is granted. | |
1da177e4 LT |
750 | * @task_kill: |
751 | * Check permission before sending signal @sig to @p. @info can be NULL, | |
752 | * the constant 1, or a pointer to a siginfo structure. If @info is 1 or | |
753 | * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming | |
754 | * from the kernel and should typically be permitted. | |
755 | * SIGIO signals are handled separately by the send_sigiotask hook in | |
756 | * file_security_ops. | |
757 | * @p contains the task_struct for process. | |
758 | * @info contains the signal information. | |
759 | * @sig contains the signal value. | |
f9008e4c | 760 | * @secid contains the sid of the process where the signal originated |
1da177e4 LT |
761 | * Return 0 if permission is granted. |
762 | * @task_wait: | |
763 | * Check permission before allowing a process to reap a child process @p | |
764 | * and collect its status information. | |
765 | * @p contains the task_struct for process. | |
766 | * Return 0 if permission is granted. | |
767 | * @task_prctl: | |
768 | * Check permission before performing a process control operation on the | |
769 | * current process. | |
770 | * @option contains the operation. | |
771 | * @arg2 contains a argument. | |
772 | * @arg3 contains a argument. | |
773 | * @arg4 contains a argument. | |
774 | * @arg5 contains a argument. | |
d84f4f99 DH |
775 | * Return -ENOSYS if no-one wanted to handle this op, any other value to |
776 | * cause prctl() to return immediately with that value. | |
1da177e4 | 777 | * @task_to_inode: |
7b41b173 EP |
778 | * Set the security attributes for an inode based on an associated task's |
779 | * security attributes, e.g. for /proc/pid inodes. | |
1da177e4 LT |
780 | * @p contains the task_struct for the task. |
781 | * @inode contains the inode structure for the inode. | |
782 | * | |
783 | * Security hooks for Netlink messaging. | |
784 | * | |
785 | * @netlink_send: | |
786 | * Save security information for a netlink message so that permission | |
787 | * checking can be performed when the message is processed. The security | |
788 | * information can be saved using the eff_cap field of the | |
7b41b173 | 789 | * netlink_skb_parms structure. Also may be used to provide fine |
1da177e4 LT |
790 | * grained control over message transmission. |
791 | * @sk associated sock of task sending the message., | |
792 | * @skb contains the sk_buff structure for the netlink message. | |
793 | * Return 0 if the information was successfully saved and message | |
794 | * is allowed to be transmitted. | |
795 | * @netlink_recv: | |
796 | * Check permission before processing the received netlink message in | |
797 | * @skb. | |
798 | * @skb contains the sk_buff structure for the netlink message. | |
c7bdb545 | 799 | * @cap indicates the capability required |
1da177e4 LT |
800 | * Return 0 if permission is granted. |
801 | * | |
802 | * Security hooks for Unix domain networking. | |
803 | * | |
804 | * @unix_stream_connect: | |
805 | * Check permissions before establishing a Unix domain stream connection | |
806 | * between @sock and @other. | |
3610cda5 DM |
807 | * @sock contains the sock structure. |
808 | * @other contains the peer sock structure. | |
809 | * @newsk contains the new sock structure. | |
1da177e4 LT |
810 | * Return 0 if permission is granted. |
811 | * @unix_may_send: | |
812 | * Check permissions before connecting or sending datagrams from @sock to | |
813 | * @other. | |
814 | * @sock contains the socket structure. | |
815 | * @sock contains the peer socket structure. | |
816 | * Return 0 if permission is granted. | |
817 | * | |
818 | * The @unix_stream_connect and @unix_may_send hooks were necessary because | |
819 | * Linux provides an alternative to the conventional file name space for Unix | |
820 | * domain sockets. Whereas binding and connecting to sockets in the file name | |
821 | * space is mediated by the typical file permissions (and caught by the mknod | |
822 | * and permission hooks in inode_security_ops), binding and connecting to | |
823 | * sockets in the abstract name space is completely unmediated. Sufficient | |
824 | * control of Unix domain sockets in the abstract name space isn't possible | |
825 | * using only the socket layer hooks, since we need to know the actual target | |
826 | * socket, which is not looked up until we are inside the af_unix code. | |
827 | * | |
828 | * Security hooks for socket operations. | |
829 | * | |
830 | * @socket_create: | |
831 | * Check permissions prior to creating a new socket. | |
832 | * @family contains the requested protocol family. | |
833 | * @type contains the requested communications type. | |
834 | * @protocol contains the requested protocol. | |
835 | * @kern set to 1 if a kernel socket. | |
836 | * Return 0 if permission is granted. | |
837 | * @socket_post_create: | |
838 | * This hook allows a module to update or allocate a per-socket security | |
839 | * structure. Note that the security field was not added directly to the | |
840 | * socket structure, but rather, the socket security information is stored | |
841 | * in the associated inode. Typically, the inode alloc_security hook will | |
842 | * allocate and and attach security information to | |
843 | * sock->inode->i_security. This hook may be used to update the | |
844 | * sock->inode->i_security field with additional information that wasn't | |
845 | * available when the inode was allocated. | |
846 | * @sock contains the newly created socket structure. | |
847 | * @family contains the requested protocol family. | |
848 | * @type contains the requested communications type. | |
849 | * @protocol contains the requested protocol. | |
850 | * @kern set to 1 if a kernel socket. | |
851 | * @socket_bind: | |
852 | * Check permission before socket protocol layer bind operation is | |
853 | * performed and the socket @sock is bound to the address specified in the | |
854 | * @address parameter. | |
855 | * @sock contains the socket structure. | |
856 | * @address contains the address to bind to. | |
857 | * @addrlen contains the length of address. | |
7b41b173 | 858 | * Return 0 if permission is granted. |
1da177e4 LT |
859 | * @socket_connect: |
860 | * Check permission before socket protocol layer connect operation | |
861 | * attempts to connect socket @sock to a remote address, @address. | |
862 | * @sock contains the socket structure. | |
863 | * @address contains the address of remote endpoint. | |
864 | * @addrlen contains the length of address. | |
7b41b173 | 865 | * Return 0 if permission is granted. |
1da177e4 LT |
866 | * @socket_listen: |
867 | * Check permission before socket protocol layer listen operation. | |
868 | * @sock contains the socket structure. | |
869 | * @backlog contains the maximum length for the pending connection queue. | |
870 | * Return 0 if permission is granted. | |
871 | * @socket_accept: | |
872 | * Check permission before accepting a new connection. Note that the new | |
873 | * socket, @newsock, has been created and some information copied to it, | |
874 | * but the accept operation has not actually been performed. | |
875 | * @sock contains the listening socket structure. | |
876 | * @newsock contains the newly created server socket for connection. | |
877 | * Return 0 if permission is granted. | |
1da177e4 LT |
878 | * @socket_sendmsg: |
879 | * Check permission before transmitting a message to another socket. | |
880 | * @sock contains the socket structure. | |
881 | * @msg contains the message to be transmitted. | |
882 | * @size contains the size of message. | |
883 | * Return 0 if permission is granted. | |
884 | * @socket_recvmsg: | |
885 | * Check permission before receiving a message from a socket. | |
886 | * @sock contains the socket structure. | |
887 | * @msg contains the message structure. | |
888 | * @size contains the size of message structure. | |
889 | * @flags contains the operational flags. | |
7b41b173 | 890 | * Return 0 if permission is granted. |
1da177e4 LT |
891 | * @socket_getsockname: |
892 | * Check permission before the local address (name) of the socket object | |
893 | * @sock is retrieved. | |
894 | * @sock contains the socket structure. | |
895 | * Return 0 if permission is granted. | |
896 | * @socket_getpeername: | |
897 | * Check permission before the remote address (name) of a socket object | |
898 | * @sock is retrieved. | |
899 | * @sock contains the socket structure. | |
900 | * Return 0 if permission is granted. | |
901 | * @socket_getsockopt: | |
902 | * Check permissions before retrieving the options associated with socket | |
903 | * @sock. | |
904 | * @sock contains the socket structure. | |
905 | * @level contains the protocol level to retrieve option from. | |
906 | * @optname contains the name of option to retrieve. | |
907 | * Return 0 if permission is granted. | |
908 | * @socket_setsockopt: | |
909 | * Check permissions before setting the options associated with socket | |
910 | * @sock. | |
911 | * @sock contains the socket structure. | |
912 | * @level contains the protocol level to set options for. | |
913 | * @optname contains the name of the option to set. | |
7b41b173 | 914 | * Return 0 if permission is granted. |
1da177e4 LT |
915 | * @socket_shutdown: |
916 | * Checks permission before all or part of a connection on the socket | |
917 | * @sock is shut down. | |
918 | * @sock contains the socket structure. | |
919 | * @how contains the flag indicating how future sends and receives are handled. | |
920 | * Return 0 if permission is granted. | |
921 | * @socket_sock_rcv_skb: | |
922 | * Check permissions on incoming network packets. This hook is distinct | |
923 | * from Netfilter's IP input hooks since it is the first time that the | |
924 | * incoming sk_buff @skb has been associated with a particular socket, @sk. | |
0ed73185 | 925 | * Must not sleep inside this hook because some callers hold spinlocks. |
1da177e4 LT |
926 | * @sk contains the sock (not socket) associated with the incoming sk_buff. |
927 | * @skb contains the incoming network data. | |
6da34bae | 928 | * @socket_getpeersec_stream: |
1da177e4 | 929 | * This hook allows the security module to provide peer socket security |
6da34bae SH |
930 | * state for unix or connected tcp sockets to userspace via getsockopt |
931 | * SO_GETPEERSEC. For tcp sockets this can be meaningful if the | |
932 | * socket is associated with an ipsec SA. | |
1da177e4 LT |
933 | * @sock is the local socket. |
934 | * @optval userspace memory where the security state is to be copied. | |
935 | * @optlen userspace int where the module should copy the actual length | |
936 | * of the security state. | |
937 | * @len as input is the maximum length to copy to userspace provided | |
938 | * by the caller. | |
939 | * Return 0 if all is well, otherwise, typical getsockopt return | |
940 | * values. | |
6da34bae | 941 | * @socket_getpeersec_dgram: |
7b41b173 EP |
942 | * This hook allows the security module to provide peer socket security |
943 | * state for udp sockets on a per-packet basis to userspace via | |
944 | * getsockopt SO_GETPEERSEC. The application must first have indicated | |
945 | * the IP_PASSSEC option via getsockopt. It can then retrieve the | |
946 | * security state returned by this hook for a packet via the SCM_SECURITY | |
947 | * ancillary message type. | |
948 | * @skb is the skbuff for the packet being queried | |
949 | * @secdata is a pointer to a buffer in which to copy the security data | |
950 | * @seclen is the maximum length for @secdata | |
951 | * Return 0 on success, error on failure. | |
1da177e4 | 952 | * @sk_alloc_security: |
7b41b173 EP |
953 | * Allocate and attach a security structure to the sk->sk_security field, |
954 | * which is used to copy security attributes between local stream sockets. | |
1da177e4 LT |
955 | * @sk_free_security: |
956 | * Deallocate security structure. | |
892c141e VY |
957 | * @sk_clone_security: |
958 | * Clone/copy security structure. | |
beb8d13b VY |
959 | * @sk_getsecid: |
960 | * Retrieve the LSM-specific secid for the sock to enable caching of network | |
df71837d | 961 | * authorizations. |
4237c75c VY |
962 | * @sock_graft: |
963 | * Sets the socket's isec sid to the sock's sid. | |
964 | * @inet_conn_request: | |
965 | * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid. | |
966 | * @inet_csk_clone: | |
967 | * Sets the new child socket's sid to the openreq sid. | |
6b877699 | 968 | * @inet_conn_established: |
7b41b173 | 969 | * Sets the connection's peersid to the secmark on skb. |
2606fd1f EP |
970 | * @secmark_relabel_packet: |
971 | * check if the process should be allowed to relabel packets to the given secid | |
972 | * @security_secmark_refcount_inc | |
973 | * tells the LSM to increment the number of secmark labeling rules loaded | |
974 | * @security_secmark_refcount_dec | |
975 | * tells the LSM to decrement the number of secmark labeling rules loaded | |
4237c75c VY |
976 | * @req_classify_flow: |
977 | * Sets the flow's sid to the openreq sid. | |
2b980dbd PM |
978 | * @tun_dev_create: |
979 | * Check permissions prior to creating a new TUN device. | |
980 | * @tun_dev_post_create: | |
981 | * This hook allows a module to update or allocate a per-socket security | |
982 | * structure. | |
983 | * @sk contains the newly created sock structure. | |
984 | * @tun_dev_attach: | |
985 | * Check permissions prior to attaching to a persistent TUN device. This | |
986 | * hook can also be used by the module to update any security state | |
987 | * associated with the TUN device's sock structure. | |
988 | * @sk contains the existing sock structure. | |
df71837d TJ |
989 | * |
990 | * Security hooks for XFRM operations. | |
991 | * | |
992 | * @xfrm_policy_alloc_security: | |
03e1ad7b PM |
993 | * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy |
994 | * Database used by the XFRM system. | |
df71837d TJ |
995 | * @sec_ctx contains the security context information being provided by |
996 | * the user-level policy update program (e.g., setkey). | |
e0d1caa7 | 997 | * Allocate a security structure to the xp->security field; the security |
c1a856c9 | 998 | * field is initialized to NULL when the xfrm_policy is allocated. |
df71837d TJ |
999 | * Return 0 if operation was successful (memory to allocate, legal context) |
1000 | * @xfrm_policy_clone_security: | |
03e1ad7b PM |
1001 | * @old_ctx contains an existing xfrm_sec_ctx. |
1002 | * @new_ctxp contains a new xfrm_sec_ctx being cloned from old. | |
1003 | * Allocate a security structure in new_ctxp that contains the | |
1004 | * information from the old_ctx structure. | |
df71837d TJ |
1005 | * Return 0 if operation was successful (memory to allocate). |
1006 | * @xfrm_policy_free_security: | |
03e1ad7b | 1007 | * @ctx contains the xfrm_sec_ctx |
c8c05a8e CZ |
1008 | * Deallocate xp->security. |
1009 | * @xfrm_policy_delete_security: | |
03e1ad7b | 1010 | * @ctx contains the xfrm_sec_ctx. |
c8c05a8e | 1011 | * Authorize deletion of xp->security. |
df71837d TJ |
1012 | * @xfrm_state_alloc_security: |
1013 | * @x contains the xfrm_state being added to the Security Association | |
1014 | * Database by the XFRM system. | |
1015 | * @sec_ctx contains the security context information being provided by | |
1016 | * the user-level SA generation program (e.g., setkey or racoon). | |
e0d1caa7 VY |
1017 | * @secid contains the secid from which to take the mls portion of the context. |
1018 | * Allocate a security structure to the x->security field; the security | |
1019 | * field is initialized to NULL when the xfrm_state is allocated. Set the | |
1020 | * context to correspond to either sec_ctx or polsec, with the mls portion | |
1021 | * taken from secid in the latter case. | |
df71837d TJ |
1022 | * Return 0 if operation was successful (memory to allocate, legal context). |
1023 | * @xfrm_state_free_security: | |
1024 | * @x contains the xfrm_state. | |
c8c05a8e CZ |
1025 | * Deallocate x->security. |
1026 | * @xfrm_state_delete_security: | |
1027 | * @x contains the xfrm_state. | |
1028 | * Authorize deletion of x->security. | |
df71837d | 1029 | * @xfrm_policy_lookup: |
03e1ad7b | 1030 | * @ctx contains the xfrm_sec_ctx for which the access control is being |
df71837d | 1031 | * checked. |
e0d1caa7 | 1032 | * @fl_secid contains the flow security label that is used to authorize |
df71837d TJ |
1033 | * access to the policy xp. |
1034 | * @dir contains the direction of the flow (input or output). | |
e0d1caa7 | 1035 | * Check permission when a flow selects a xfrm_policy for processing |
df71837d TJ |
1036 | * XFRMs on a packet. The hook is called when selecting either a |
1037 | * per-socket policy or a generic xfrm policy. | |
5b368e61 VY |
1038 | * Return 0 if permission is granted, -ESRCH otherwise, or -errno |
1039 | * on other errors. | |
e0d1caa7 VY |
1040 | * @xfrm_state_pol_flow_match: |
1041 | * @x contains the state to match. | |
1042 | * @xp contains the policy to check for a match. | |
1043 | * @fl contains the flow to check for a match. | |
1044 | * Return 1 if there is a match. | |
e0d1caa7 VY |
1045 | * @xfrm_decode_session: |
1046 | * @skb points to skb to decode. | |
beb8d13b VY |
1047 | * @secid points to the flow key secid to set. |
1048 | * @ckall says if all xfrms used should be checked for same secid. | |
1049 | * Return 0 if ckall is zero or all xfrms used have the same secid. | |
1da177e4 | 1050 | * |
29db9190 DH |
1051 | * Security hooks affecting all Key Management operations |
1052 | * | |
1053 | * @key_alloc: | |
1054 | * Permit allocation of a key and assign security data. Note that key does | |
1055 | * not have a serial number assigned at this point. | |
1056 | * @key points to the key. | |
7e047ef5 | 1057 | * @flags is the allocation flags |
29db9190 DH |
1058 | * Return 0 if permission is granted, -ve error otherwise. |
1059 | * @key_free: | |
1060 | * Notification of destruction; free security data. | |
1061 | * @key points to the key. | |
1062 | * No return value. | |
1063 | * @key_permission: | |
1064 | * See whether a specific operational right is granted to a process on a | |
7b41b173 | 1065 | * key. |
29db9190 | 1066 | * @key_ref refers to the key (key pointer + possession attribute bit). |
d84f4f99 | 1067 | * @cred points to the credentials to provide the context against which to |
7b41b173 | 1068 | * evaluate the security data on the key. |
29db9190 | 1069 | * @perm describes the combination of permissions required of this key. |
ad9c2b04 | 1070 | * Return 0 if permission is granted, -ve error otherwise. |
70a5bb72 DH |
1071 | * @key_getsecurity: |
1072 | * Get a textual representation of the security context attached to a key | |
1073 | * for the purposes of honouring KEYCTL_GETSECURITY. This function | |
1074 | * allocates the storage for the NUL-terminated string and the caller | |
1075 | * should free it. | |
1076 | * @key points to the key to be queried. | |
1077 | * @_buffer points to a pointer that should be set to point to the | |
1078 | * resulting string (if no label or an error occurs). | |
1079 | * Return the length of the string (including terminating NUL) or -ve if | |
1080 | * an error. | |
1081 | * May also return 0 (and a NULL buffer pointer) if there is no label. | |
29db9190 | 1082 | * |
1da177e4 LT |
1083 | * Security hooks affecting all System V IPC operations. |
1084 | * | |
1085 | * @ipc_permission: | |
1086 | * Check permissions for access to IPC | |
1087 | * @ipcp contains the kernel IPC permission structure | |
1088 | * @flag contains the desired (requested) permission set | |
1089 | * Return 0 if permission is granted. | |
8a076191 AD |
1090 | * @ipc_getsecid: |
1091 | * Get the secid associated with the ipc object. | |
1092 | * @ipcp contains the kernel IPC permission structure. | |
1093 | * @secid contains a pointer to the location where result will be saved. | |
1094 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
1095 | * |
1096 | * Security hooks for individual messages held in System V IPC message queues | |
1097 | * @msg_msg_alloc_security: | |
1098 | * Allocate and attach a security structure to the msg->security field. | |
1099 | * The security field is initialized to NULL when the structure is first | |
1100 | * created. | |
1101 | * @msg contains the message structure to be modified. | |
1102 | * Return 0 if operation was successful and permission is granted. | |
1103 | * @msg_msg_free_security: | |
1104 | * Deallocate the security structure for this message. | |
1105 | * @msg contains the message structure to be modified. | |
1106 | * | |
1107 | * Security hooks for System V IPC Message Queues | |
1108 | * | |
1109 | * @msg_queue_alloc_security: | |
1110 | * Allocate and attach a security structure to the | |
1111 | * msq->q_perm.security field. The security field is initialized to | |
1112 | * NULL when the structure is first created. | |
1113 | * @msq contains the message queue structure to be modified. | |
1114 | * Return 0 if operation was successful and permission is granted. | |
1115 | * @msg_queue_free_security: | |
1116 | * Deallocate security structure for this message queue. | |
1117 | * @msq contains the message queue structure to be modified. | |
1118 | * @msg_queue_associate: | |
1119 | * Check permission when a message queue is requested through the | |
1120 | * msgget system call. This hook is only called when returning the | |
1121 | * message queue identifier for an existing message queue, not when a | |
1122 | * new message queue is created. | |
1123 | * @msq contains the message queue to act upon. | |
1124 | * @msqflg contains the operation control flags. | |
1125 | * Return 0 if permission is granted. | |
1126 | * @msg_queue_msgctl: | |
1127 | * Check permission when a message control operation specified by @cmd | |
1128 | * is to be performed on the message queue @msq. | |
1129 | * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO. | |
1130 | * @msq contains the message queue to act upon. May be NULL. | |
1131 | * @cmd contains the operation to be performed. | |
7b41b173 | 1132 | * Return 0 if permission is granted. |
1da177e4 LT |
1133 | * @msg_queue_msgsnd: |
1134 | * Check permission before a message, @msg, is enqueued on the message | |
1135 | * queue, @msq. | |
1136 | * @msq contains the message queue to send message to. | |
1137 | * @msg contains the message to be enqueued. | |
1138 | * @msqflg contains operational flags. | |
1139 | * Return 0 if permission is granted. | |
1140 | * @msg_queue_msgrcv: | |
1141 | * Check permission before a message, @msg, is removed from the message | |
7b41b173 EP |
1142 | * queue, @msq. The @target task structure contains a pointer to the |
1143 | * process that will be receiving the message (not equal to the current | |
1da177e4 LT |
1144 | * process when inline receives are being performed). |
1145 | * @msq contains the message queue to retrieve message from. | |
1146 | * @msg contains the message destination. | |
1147 | * @target contains the task structure for recipient process. | |
1148 | * @type contains the type of message requested. | |
1149 | * @mode contains the operational flags. | |
1150 | * Return 0 if permission is granted. | |
1151 | * | |
1152 | * Security hooks for System V Shared Memory Segments | |
1153 | * | |
1154 | * @shm_alloc_security: | |
1155 | * Allocate and attach a security structure to the shp->shm_perm.security | |
1156 | * field. The security field is initialized to NULL when the structure is | |
1157 | * first created. | |
1158 | * @shp contains the shared memory structure to be modified. | |
1159 | * Return 0 if operation was successful and permission is granted. | |
1160 | * @shm_free_security: | |
1161 | * Deallocate the security struct for this memory segment. | |
1162 | * @shp contains the shared memory structure to be modified. | |
1163 | * @shm_associate: | |
1164 | * Check permission when a shared memory region is requested through the | |
1165 | * shmget system call. This hook is only called when returning the shared | |
1166 | * memory region identifier for an existing region, not when a new shared | |
1167 | * memory region is created. | |
1168 | * @shp contains the shared memory structure to be modified. | |
1169 | * @shmflg contains the operation control flags. | |
1170 | * Return 0 if permission is granted. | |
1171 | * @shm_shmctl: | |
1172 | * Check permission when a shared memory control operation specified by | |
1173 | * @cmd is to be performed on the shared memory region @shp. | |
1174 | * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO. | |
1175 | * @shp contains shared memory structure to be modified. | |
1176 | * @cmd contains the operation to be performed. | |
1177 | * Return 0 if permission is granted. | |
1178 | * @shm_shmat: | |
1179 | * Check permissions prior to allowing the shmat system call to attach the | |
1180 | * shared memory segment @shp to the data segment of the calling process. | |
1181 | * The attaching address is specified by @shmaddr. | |
1182 | * @shp contains the shared memory structure to be modified. | |
1183 | * @shmaddr contains the address to attach memory region to. | |
1184 | * @shmflg contains the operational flags. | |
1185 | * Return 0 if permission is granted. | |
1186 | * | |
1187 | * Security hooks for System V Semaphores | |
1188 | * | |
1189 | * @sem_alloc_security: | |
1190 | * Allocate and attach a security structure to the sma->sem_perm.security | |
1191 | * field. The security field is initialized to NULL when the structure is | |
1192 | * first created. | |
1193 | * @sma contains the semaphore structure | |
1194 | * Return 0 if operation was successful and permission is granted. | |
1195 | * @sem_free_security: | |
1196 | * deallocate security struct for this semaphore | |
1197 | * @sma contains the semaphore structure. | |
1198 | * @sem_associate: | |
1199 | * Check permission when a semaphore is requested through the semget | |
1200 | * system call. This hook is only called when returning the semaphore | |
1201 | * identifier for an existing semaphore, not when a new one must be | |
1202 | * created. | |
1203 | * @sma contains the semaphore structure. | |
1204 | * @semflg contains the operation control flags. | |
1205 | * Return 0 if permission is granted. | |
1206 | * @sem_semctl: | |
1207 | * Check permission when a semaphore operation specified by @cmd is to be | |
7b41b173 | 1208 | * performed on the semaphore @sma. The @sma may be NULL, e.g. for |
1da177e4 LT |
1209 | * IPC_INFO or SEM_INFO. |
1210 | * @sma contains the semaphore structure. May be NULL. | |
1211 | * @cmd contains the operation to be performed. | |
1212 | * Return 0 if permission is granted. | |
1213 | * @sem_semop | |
1214 | * Check permissions before performing operations on members of the | |
7b41b173 EP |
1215 | * semaphore set @sma. If the @alter flag is nonzero, the semaphore set |
1216 | * may be modified. | |
1da177e4 LT |
1217 | * @sma contains the semaphore structure. |
1218 | * @sops contains the operations to perform. | |
1219 | * @nsops contains the number of operations to perform. | |
1220 | * @alter contains the flag indicating whether changes are to be made. | |
1221 | * Return 0 if permission is granted. | |
1222 | * | |
9e48858f | 1223 | * @ptrace_access_check: |
5cd9c58f | 1224 | * Check permission before allowing the current process to trace the |
1da177e4 LT |
1225 | * @child process. |
1226 | * Security modules may also want to perform a process tracing check | |
1227 | * during an execve in the set_security or apply_creds hooks of | |
d84f4f99 | 1228 | * tracing check during an execve in the bprm_set_creds hook of |
1da177e4 LT |
1229 | * binprm_security_ops if the process is being traced and its security |
1230 | * attributes would be changed by the execve. | |
5cd9c58f | 1231 | * @child contains the task_struct structure for the target process. |
006ebb40 | 1232 | * @mode contains the PTRACE_MODE flags indicating the form of access. |
1da177e4 | 1233 | * Return 0 if permission is granted. |
5cd9c58f DH |
1234 | * @ptrace_traceme: |
1235 | * Check that the @parent process has sufficient permission to trace the | |
1236 | * current process before allowing the current process to present itself | |
1237 | * to the @parent process for tracing. | |
9e48858f | 1238 | * The parent process will still have to undergo the ptrace_access_check |
5cd9c58f DH |
1239 | * checks before it is allowed to trace this one. |
1240 | * @parent contains the task_struct structure for debugger process. | |
1241 | * Return 0 if permission is granted. | |
1da177e4 LT |
1242 | * @capget: |
1243 | * Get the @effective, @inheritable, and @permitted capability sets for | |
1244 | * the @target process. The hook may also perform permission checking to | |
1245 | * determine if the current process is allowed to see the capability sets | |
1246 | * of the @target process. | |
1247 | * @target contains the task_struct structure for target process. | |
1248 | * @effective contains the effective capability set. | |
1249 | * @inheritable contains the inheritable capability set. | |
1250 | * @permitted contains the permitted capability set. | |
1251 | * Return 0 if the capability sets were successfully obtained. | |
d84f4f99 | 1252 | * @capset: |
1da177e4 | 1253 | * Set the @effective, @inheritable, and @permitted capability sets for |
1cdcbec1 | 1254 | * the current process. |
d84f4f99 DH |
1255 | * @new contains the new credentials structure for target process. |
1256 | * @old contains the current credentials structure for target process. | |
1da177e4 LT |
1257 | * @effective contains the effective capability set. |
1258 | * @inheritable contains the inheritable capability set. | |
1259 | * @permitted contains the permitted capability set. | |
d84f4f99 | 1260 | * Return 0 and update @new if permission is granted. |
12b5989b | 1261 | * @capable: |
3699c53c DH |
1262 | * Check whether the @tsk process has the @cap capability in the indicated |
1263 | * credentials. | |
3699c53c | 1264 | * @cred contains the credentials to use. |
3486740a | 1265 | * @ns contains the user namespace we want the capability in |
12b5989b | 1266 | * @cap contains the capability <include/linux/capability.h>. |
3699c53c | 1267 | * @audit: Whether to write an audit message or not |
12b5989b | 1268 | * Return 0 if the capability is granted for @tsk. |
1da177e4 LT |
1269 | * @syslog: |
1270 | * Check permission before accessing the kernel message ring or changing | |
1271 | * logging to the console. | |
7b41b173 | 1272 | * See the syslog(2) manual page for an explanation of the @type values. |
1da177e4 | 1273 | * @type contains the type of action. |
00234592 | 1274 | * @from_file indicates the context of action (if it came from /proc). |
1da177e4 LT |
1275 | * Return 0 if permission is granted. |
1276 | * @settime: | |
1277 | * Check permission to change the system time. | |
1278 | * struct timespec and timezone are defined in include/linux/time.h | |
1279 | * @ts contains new time | |
1280 | * @tz contains new timezone | |
1281 | * Return 0 if permission is granted. | |
1282 | * @vm_enough_memory: | |
1283 | * Check permissions for allocating a new virtual mapping. | |
34b4e4aa | 1284 | * @mm contains the mm struct it is being added to. |
7b41b173 | 1285 | * @pages contains the number of pages. |
1da177e4 LT |
1286 | * Return 0 if permission is granted. |
1287 | * | |
dc49c1f9 | 1288 | * @secid_to_secctx: |
d5630b9d EP |
1289 | * Convert secid to security context. If secdata is NULL the length of |
1290 | * the result will be returned in seclen, but no secdata will be returned. | |
1291 | * This does mean that the length could change between calls to check the | |
1292 | * length and the next call which actually allocates and returns the secdata. | |
dc49c1f9 CZ |
1293 | * @secid contains the security ID. |
1294 | * @secdata contains the pointer that stores the converted security context. | |
d5630b9d | 1295 | * @seclen pointer which contains the length of the data |
63cb3449 | 1296 | * @secctx_to_secid: |
7b41b173 EP |
1297 | * Convert security context to secid. |
1298 | * @secid contains the pointer to the generated security ID. | |
1299 | * @secdata contains the security context. | |
dc49c1f9 CZ |
1300 | * |
1301 | * @release_secctx: | |
1302 | * Release the security context. | |
1303 | * @secdata contains the security context. | |
1304 | * @seclen contains the length of the security context. | |
1305 | * | |
03d37d25 AD |
1306 | * Security hooks for Audit |
1307 | * | |
1308 | * @audit_rule_init: | |
1309 | * Allocate and initialize an LSM audit rule structure. | |
1310 | * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h | |
1311 | * @op contains the operator the rule uses. | |
1312 | * @rulestr contains the context where the rule will be applied to. | |
1313 | * @lsmrule contains a pointer to receive the result. | |
1314 | * Return 0 if @lsmrule has been successfully set, | |
1315 | * -EINVAL in case of an invalid rule. | |
1316 | * | |
1317 | * @audit_rule_known: | |
1318 | * Specifies whether given @rule contains any fields related to current LSM. | |
1319 | * @rule contains the audit rule of interest. | |
1320 | * Return 1 in case of relation found, 0 otherwise. | |
1321 | * | |
1322 | * @audit_rule_match: | |
1323 | * Determine if given @secid matches a rule previously approved | |
1324 | * by @audit_rule_known. | |
1325 | * @secid contains the security id in question. | |
1326 | * @field contains the field which relates to current LSM. | |
1327 | * @op contains the operator that will be used for matching. | |
1328 | * @rule points to the audit rule that will be checked against. | |
1329 | * @actx points to the audit context associated with the check. | |
1330 | * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure. | |
1331 | * | |
1332 | * @audit_rule_free: | |
1333 | * Deallocate the LSM audit rule structure previously allocated by | |
1334 | * audit_rule_init. | |
1335 | * @rule contains the allocated rule | |
1336 | * | |
1ee65e37 DQ |
1337 | * @inode_notifysecctx: |
1338 | * Notify the security module of what the security context of an inode | |
1339 | * should be. Initializes the incore security context managed by the | |
1340 | * security module for this inode. Example usage: NFS client invokes | |
1341 | * this hook to initialize the security context in its incore inode to the | |
1342 | * value provided by the server for the file when the server returned the | |
1343 | * file's attributes to the client. | |
1344 | * | |
1345 | * Must be called with inode->i_mutex locked. | |
1346 | * | |
1347 | * @inode we wish to set the security context of. | |
1348 | * @ctx contains the string which we wish to set in the inode. | |
1349 | * @ctxlen contains the length of @ctx. | |
1350 | * | |
1351 | * @inode_setsecctx: | |
1352 | * Change the security context of an inode. Updates the | |
1353 | * incore security context managed by the security module and invokes the | |
1354 | * fs code as needed (via __vfs_setxattr_noperm) to update any backing | |
1355 | * xattrs that represent the context. Example usage: NFS server invokes | |
1356 | * this hook to change the security context in its incore inode and on the | |
1357 | * backing filesystem to a value provided by the client on a SETATTR | |
1358 | * operation. | |
1359 | * | |
1360 | * Must be called with inode->i_mutex locked. | |
1361 | * | |
1362 | * @dentry contains the inode we wish to set the security context of. | |
1363 | * @ctx contains the string which we wish to set in the inode. | |
1364 | * @ctxlen contains the length of @ctx. | |
1365 | * | |
1366 | * @inode_getsecctx: | |
1367 | * Returns a string containing all relavent security context information | |
1368 | * | |
1369 | * @inode we wish to set the security context of. | |
1370 | * @ctx is a pointer in which to place the allocated security context. | |
1371 | * @ctxlen points to the place to put the length of @ctx. | |
1da177e4 LT |
1372 | * This is the main security structure. |
1373 | */ | |
1374 | struct security_operations { | |
076c54c5 AD |
1375 | char name[SECURITY_NAME_MAX + 1]; |
1376 | ||
9e48858f | 1377 | int (*ptrace_access_check) (struct task_struct *child, unsigned int mode); |
5cd9c58f | 1378 | int (*ptrace_traceme) (struct task_struct *parent); |
7b41b173 EP |
1379 | int (*capget) (struct task_struct *target, |
1380 | kernel_cap_t *effective, | |
1381 | kernel_cap_t *inheritable, kernel_cap_t *permitted); | |
d84f4f99 DH |
1382 | int (*capset) (struct cred *new, |
1383 | const struct cred *old, | |
1384 | const kernel_cap_t *effective, | |
1385 | const kernel_cap_t *inheritable, | |
1386 | const kernel_cap_t *permitted); | |
6a9de491 EP |
1387 | int (*capable) (const struct cred *cred, struct user_namespace *ns, |
1388 | int cap, int audit); | |
7b41b173 EP |
1389 | int (*quotactl) (int cmds, int type, int id, struct super_block *sb); |
1390 | int (*quota_on) (struct dentry *dentry); | |
12b3052c | 1391 | int (*syslog) (int type); |
1e6d7679 | 1392 | int (*settime) (const struct timespec *ts, const struct timezone *tz); |
34b4e4aa | 1393 | int (*vm_enough_memory) (struct mm_struct *mm, long pages); |
1da177e4 | 1394 | |
a6f76f23 | 1395 | int (*bprm_set_creds) (struct linux_binprm *bprm); |
7b41b173 EP |
1396 | int (*bprm_check_security) (struct linux_binprm *bprm); |
1397 | int (*bprm_secureexec) (struct linux_binprm *bprm); | |
a6f76f23 DH |
1398 | void (*bprm_committing_creds) (struct linux_binprm *bprm); |
1399 | void (*bprm_committed_creds) (struct linux_binprm *bprm); | |
7b41b173 EP |
1400 | |
1401 | int (*sb_alloc_security) (struct super_block *sb); | |
1402 | void (*sb_free_security) (struct super_block *sb); | |
1403 | int (*sb_copy_data) (char *orig, char *copy); | |
ff36fe2c | 1404 | int (*sb_remount) (struct super_block *sb, void *data); |
12204e24 | 1405 | int (*sb_kern_mount) (struct super_block *sb, int flags, void *data); |
2069f457 | 1406 | int (*sb_show_options) (struct seq_file *m, struct super_block *sb); |
726c3342 | 1407 | int (*sb_statfs) (struct dentry *dentry); |
b5266eb4 | 1408 | int (*sb_mount) (char *dev_name, struct path *path, |
1da177e4 | 1409 | char *type, unsigned long flags, void *data); |
7b41b173 | 1410 | int (*sb_umount) (struct vfsmount *mnt, int flags); |
b5266eb4 AV |
1411 | int (*sb_pivotroot) (struct path *old_path, |
1412 | struct path *new_path); | |
e0007529 EP |
1413 | int (*sb_set_mnt_opts) (struct super_block *sb, |
1414 | struct security_mnt_opts *opts); | |
c9180a57 EP |
1415 | void (*sb_clone_mnt_opts) (const struct super_block *oldsb, |
1416 | struct super_block *newsb); | |
e0007529 | 1417 | int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts); |
1da177e4 | 1418 | |
be6d3e56 KT |
1419 | #ifdef CONFIG_SECURITY_PATH |
1420 | int (*path_unlink) (struct path *dir, struct dentry *dentry); | |
1421 | int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode); | |
1422 | int (*path_rmdir) (struct path *dir, struct dentry *dentry); | |
1423 | int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode, | |
1424 | unsigned int dev); | |
ea0d3ab2 | 1425 | int (*path_truncate) (struct path *path); |
be6d3e56 KT |
1426 | int (*path_symlink) (struct path *dir, struct dentry *dentry, |
1427 | const char *old_name); | |
1428 | int (*path_link) (struct dentry *old_dentry, struct path *new_dir, | |
1429 | struct dentry *new_dentry); | |
1430 | int (*path_rename) (struct path *old_dir, struct dentry *old_dentry, | |
1431 | struct path *new_dir, struct dentry *new_dentry); | |
89eda068 TH |
1432 | int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt, |
1433 | mode_t mode); | |
1434 | int (*path_chown) (struct path *path, uid_t uid, gid_t gid); | |
8b8efb44 | 1435 | int (*path_chroot) (struct path *path); |
be6d3e56 KT |
1436 | #endif |
1437 | ||
7b41b173 | 1438 | int (*inode_alloc_security) (struct inode *inode); |
1da177e4 | 1439 | void (*inode_free_security) (struct inode *inode); |
5e41ff9e | 1440 | int (*inode_init_security) (struct inode *inode, struct inode *dir, |
2a7dba39 EP |
1441 | const struct qstr *qstr, char **name, |
1442 | void **value, size_t *len); | |
1da177e4 | 1443 | int (*inode_create) (struct inode *dir, |
7b41b173 | 1444 | struct dentry *dentry, int mode); |
1da177e4 | 1445 | int (*inode_link) (struct dentry *old_dentry, |
7b41b173 | 1446 | struct inode *dir, struct dentry *new_dentry); |
1da177e4 LT |
1447 | int (*inode_unlink) (struct inode *dir, struct dentry *dentry); |
1448 | int (*inode_symlink) (struct inode *dir, | |
7b41b173 | 1449 | struct dentry *dentry, const char *old_name); |
1da177e4 | 1450 | int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode); |
1da177e4 LT |
1451 | int (*inode_rmdir) (struct inode *dir, struct dentry *dentry); |
1452 | int (*inode_mknod) (struct inode *dir, struct dentry *dentry, | |
7b41b173 | 1453 | int mode, dev_t dev); |
1da177e4 | 1454 | int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry, |
7b41b173 | 1455 | struct inode *new_dir, struct dentry *new_dentry); |
1da177e4 LT |
1456 | int (*inode_readlink) (struct dentry *dentry); |
1457 | int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd); | |
e74f71eb | 1458 | int (*inode_permission) (struct inode *inode, int mask); |
1da177e4 LT |
1459 | int (*inode_setattr) (struct dentry *dentry, struct iattr *attr); |
1460 | int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry); | |
8f0cfa52 DH |
1461 | int (*inode_setxattr) (struct dentry *dentry, const char *name, |
1462 | const void *value, size_t size, int flags); | |
1463 | void (*inode_post_setxattr) (struct dentry *dentry, const char *name, | |
1464 | const void *value, size_t size, int flags); | |
1465 | int (*inode_getxattr) (struct dentry *dentry, const char *name); | |
1da177e4 | 1466 | int (*inode_listxattr) (struct dentry *dentry); |
8f0cfa52 | 1467 | int (*inode_removexattr) (struct dentry *dentry, const char *name); |
b5376771 SH |
1468 | int (*inode_need_killpriv) (struct dentry *dentry); |
1469 | int (*inode_killpriv) (struct dentry *dentry); | |
7b41b173 EP |
1470 | int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc); |
1471 | int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags); | |
1472 | int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size); | |
1473 | void (*inode_getsecid) (const struct inode *inode, u32 *secid); | |
1474 | ||
1475 | int (*file_permission) (struct file *file, int mask); | |
1476 | int (*file_alloc_security) (struct file *file); | |
1477 | void (*file_free_security) (struct file *file); | |
1478 | int (*file_ioctl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1479 | unsigned long arg); |
7b41b173 | 1480 | int (*file_mmap) (struct file *file, |
ed032189 EP |
1481 | unsigned long reqprot, unsigned long prot, |
1482 | unsigned long flags, unsigned long addr, | |
1483 | unsigned long addr_only); | |
7b41b173 | 1484 | int (*file_mprotect) (struct vm_area_struct *vma, |
1da177e4 LT |
1485 | unsigned long reqprot, |
1486 | unsigned long prot); | |
7b41b173 EP |
1487 | int (*file_lock) (struct file *file, unsigned int cmd); |
1488 | int (*file_fcntl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1489 | unsigned long arg); |
7b41b173 EP |
1490 | int (*file_set_fowner) (struct file *file); |
1491 | int (*file_send_sigiotask) (struct task_struct *tsk, | |
1492 | struct fown_struct *fown, int sig); | |
1493 | int (*file_receive) (struct file *file); | |
745ca247 | 1494 | int (*dentry_open) (struct file *file, const struct cred *cred); |
1da177e4 LT |
1495 | |
1496 | int (*task_create) (unsigned long clone_flags); | |
ee18d64c | 1497 | int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp); |
f1752eec | 1498 | void (*cred_free) (struct cred *cred); |
d84f4f99 DH |
1499 | int (*cred_prepare)(struct cred *new, const struct cred *old, |
1500 | gfp_t gfp); | |
ee18d64c | 1501 | void (*cred_transfer)(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1502 | int (*kernel_act_as)(struct cred *new, u32 secid); |
1503 | int (*kernel_create_files_as)(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1504 | int (*kernel_module_request)(char *kmod_name); |
d84f4f99 DH |
1505 | int (*task_fix_setuid) (struct cred *new, const struct cred *old, |
1506 | int flags); | |
7b41b173 EP |
1507 | int (*task_setpgid) (struct task_struct *p, pid_t pgid); |
1508 | int (*task_getpgid) (struct task_struct *p); | |
1509 | int (*task_getsid) (struct task_struct *p); | |
1510 | void (*task_getsecid) (struct task_struct *p, u32 *secid); | |
7b41b173 EP |
1511 | int (*task_setnice) (struct task_struct *p, int nice); |
1512 | int (*task_setioprio) (struct task_struct *p, int ioprio); | |
1513 | int (*task_getioprio) (struct task_struct *p); | |
8fd00b4d JS |
1514 | int (*task_setrlimit) (struct task_struct *p, unsigned int resource, |
1515 | struct rlimit *new_rlim); | |
b0ae1981 | 1516 | int (*task_setscheduler) (struct task_struct *p); |
7b41b173 EP |
1517 | int (*task_getscheduler) (struct task_struct *p); |
1518 | int (*task_movememory) (struct task_struct *p); | |
1519 | int (*task_kill) (struct task_struct *p, | |
1520 | struct siginfo *info, int sig, u32 secid); | |
1521 | int (*task_wait) (struct task_struct *p); | |
1da177e4 LT |
1522 | int (*task_prctl) (int option, unsigned long arg2, |
1523 | unsigned long arg3, unsigned long arg4, | |
d84f4f99 | 1524 | unsigned long arg5); |
7b41b173 | 1525 | void (*task_to_inode) (struct task_struct *p, struct inode *inode); |
1da177e4 | 1526 | |
7b41b173 | 1527 | int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag); |
8a076191 | 1528 | void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid); |
1da177e4 | 1529 | |
7b41b173 EP |
1530 | int (*msg_msg_alloc_security) (struct msg_msg *msg); |
1531 | void (*msg_msg_free_security) (struct msg_msg *msg); | |
1532 | ||
1533 | int (*msg_queue_alloc_security) (struct msg_queue *msq); | |
1534 | void (*msg_queue_free_security) (struct msg_queue *msq); | |
1535 | int (*msg_queue_associate) (struct msg_queue *msq, int msqflg); | |
1536 | int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd); | |
1537 | int (*msg_queue_msgsnd) (struct msg_queue *msq, | |
1538 | struct msg_msg *msg, int msqflg); | |
1539 | int (*msg_queue_msgrcv) (struct msg_queue *msq, | |
1540 | struct msg_msg *msg, | |
1541 | struct task_struct *target, | |
1da177e4 LT |
1542 | long type, int mode); |
1543 | ||
7b41b173 EP |
1544 | int (*shm_alloc_security) (struct shmid_kernel *shp); |
1545 | void (*shm_free_security) (struct shmid_kernel *shp); | |
1546 | int (*shm_associate) (struct shmid_kernel *shp, int shmflg); | |
1547 | int (*shm_shmctl) (struct shmid_kernel *shp, int cmd); | |
1548 | int (*shm_shmat) (struct shmid_kernel *shp, | |
1da177e4 LT |
1549 | char __user *shmaddr, int shmflg); |
1550 | ||
7b41b173 EP |
1551 | int (*sem_alloc_security) (struct sem_array *sma); |
1552 | void (*sem_free_security) (struct sem_array *sma); | |
1553 | int (*sem_associate) (struct sem_array *sma, int semflg); | |
1554 | int (*sem_semctl) (struct sem_array *sma, int cmd); | |
1555 | int (*sem_semop) (struct sem_array *sma, | |
1556 | struct sembuf *sops, unsigned nsops, int alter); | |
1da177e4 | 1557 | |
7b41b173 EP |
1558 | int (*netlink_send) (struct sock *sk, struct sk_buff *skb); |
1559 | int (*netlink_recv) (struct sk_buff *skb, int cap); | |
1da177e4 | 1560 | |
1da177e4 LT |
1561 | void (*d_instantiate) (struct dentry *dentry, struct inode *inode); |
1562 | ||
7b41b173 EP |
1563 | int (*getprocattr) (struct task_struct *p, char *name, char **value); |
1564 | int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size); | |
1565 | int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen); | |
7bf570dc | 1566 | int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid); |
7b41b173 | 1567 | void (*release_secctx) (char *secdata, u32 seclen); |
1da177e4 | 1568 | |
1ee65e37 DQ |
1569 | int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen); |
1570 | int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1571 | int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen); | |
1572 | ||
1da177e4 | 1573 | #ifdef CONFIG_SECURITY_NETWORK |
3610cda5 | 1574 | int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk); |
7b41b173 | 1575 | int (*unix_may_send) (struct socket *sock, struct socket *other); |
1da177e4 LT |
1576 | |
1577 | int (*socket_create) (int family, int type, int protocol, int kern); | |
7b41b173 | 1578 | int (*socket_post_create) (struct socket *sock, int family, |
7420ed23 | 1579 | int type, int protocol, int kern); |
7b41b173 EP |
1580 | int (*socket_bind) (struct socket *sock, |
1581 | struct sockaddr *address, int addrlen); | |
1582 | int (*socket_connect) (struct socket *sock, | |
1583 | struct sockaddr *address, int addrlen); | |
1584 | int (*socket_listen) (struct socket *sock, int backlog); | |
1585 | int (*socket_accept) (struct socket *sock, struct socket *newsock); | |
7b41b173 EP |
1586 | int (*socket_sendmsg) (struct socket *sock, |
1587 | struct msghdr *msg, int size); | |
1588 | int (*socket_recvmsg) (struct socket *sock, | |
1589 | struct msghdr *msg, int size, int flags); | |
1590 | int (*socket_getsockname) (struct socket *sock); | |
1591 | int (*socket_getpeername) (struct socket *sock); | |
1592 | int (*socket_getsockopt) (struct socket *sock, int level, int optname); | |
1593 | int (*socket_setsockopt) (struct socket *sock, int level, int optname); | |
1594 | int (*socket_shutdown) (struct socket *sock, int how); | |
1595 | int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb); | |
2c7946a7 | 1596 | int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len); |
dc49c1f9 | 1597 | int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid); |
7d877f3b | 1598 | int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority); |
1da177e4 | 1599 | void (*sk_free_security) (struct sock *sk); |
892c141e | 1600 | void (*sk_clone_security) (const struct sock *sk, struct sock *newsk); |
beb8d13b | 1601 | void (*sk_getsecid) (struct sock *sk, u32 *secid); |
7b41b173 EP |
1602 | void (*sock_graft) (struct sock *sk, struct socket *parent); |
1603 | int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb, | |
1604 | struct request_sock *req); | |
1605 | void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req); | |
1606 | void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb); | |
2606fd1f EP |
1607 | int (*secmark_relabel_packet) (u32 secid); |
1608 | void (*secmark_refcount_inc) (void); | |
1609 | void (*secmark_refcount_dec) (void); | |
7b41b173 | 1610 | void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl); |
2b980dbd PM |
1611 | int (*tun_dev_create)(void); |
1612 | void (*tun_dev_post_create)(struct sock *sk); | |
1613 | int (*tun_dev_attach)(struct sock *sk); | |
1da177e4 | 1614 | #endif /* CONFIG_SECURITY_NETWORK */ |
29db9190 | 1615 | |
df71837d | 1616 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
03e1ad7b | 1617 | int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp, |
c1a856c9 | 1618 | struct xfrm_user_sec_ctx *sec_ctx); |
03e1ad7b PM |
1619 | int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx); |
1620 | void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx); | |
1621 | int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx); | |
e0d1caa7 | 1622 | int (*xfrm_state_alloc_security) (struct xfrm_state *x, |
c1a856c9 | 1623 | struct xfrm_user_sec_ctx *sec_ctx, |
e0d1caa7 | 1624 | u32 secid); |
df71837d | 1625 | void (*xfrm_state_free_security) (struct xfrm_state *x); |
c8c05a8e | 1626 | int (*xfrm_state_delete_security) (struct xfrm_state *x); |
7b41b173 EP |
1627 | int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
1628 | int (*xfrm_state_pol_flow_match) (struct xfrm_state *x, | |
1629 | struct xfrm_policy *xp, | |
e33f7704 | 1630 | const struct flowi *fl); |
7b41b173 | 1631 | int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall); |
df71837d TJ |
1632 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
1633 | ||
29db9190 DH |
1634 | /* key management security hooks */ |
1635 | #ifdef CONFIG_KEYS | |
d84f4f99 | 1636 | int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags); |
7b41b173 EP |
1637 | void (*key_free) (struct key *key); |
1638 | int (*key_permission) (key_ref_t key_ref, | |
d84f4f99 | 1639 | const struct cred *cred, |
7b41b173 | 1640 | key_perm_t perm); |
70a5bb72 | 1641 | int (*key_getsecurity)(struct key *key, char **_buffer); |
29db9190 DH |
1642 | #endif /* CONFIG_KEYS */ |
1643 | ||
03d37d25 | 1644 | #ifdef CONFIG_AUDIT |
7b41b173 EP |
1645 | int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule); |
1646 | int (*audit_rule_known) (struct audit_krule *krule); | |
1647 | int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule, | |
1648 | struct audit_context *actx); | |
1649 | void (*audit_rule_free) (void *lsmrule); | |
03d37d25 | 1650 | #endif /* CONFIG_AUDIT */ |
1da177e4 LT |
1651 | }; |
1652 | ||
1da177e4 | 1653 | /* prototypes */ |
7b41b173 | 1654 | extern int security_init(void); |
076c54c5 | 1655 | extern int security_module_enable(struct security_operations *ops); |
7b41b173 | 1656 | extern int register_security(struct security_operations *ops); |
1da177e4 | 1657 | |
20510f2f | 1658 | /* Security operations */ |
9e48858f | 1659 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 1660 | int security_ptrace_traceme(struct task_struct *parent); |
20510f2f | 1661 | int security_capget(struct task_struct *target, |
7b41b173 EP |
1662 | kernel_cap_t *effective, |
1663 | kernel_cap_t *inheritable, | |
1664 | kernel_cap_t *permitted); | |
d84f4f99 DH |
1665 | int security_capset(struct cred *new, const struct cred *old, |
1666 | const kernel_cap_t *effective, | |
1667 | const kernel_cap_t *inheritable, | |
1668 | const kernel_cap_t *permitted); | |
b7e724d3 | 1669 | int security_capable(const struct cred *cred, struct user_namespace *ns, |
3486740a | 1670 | int cap); |
c7eba4a9 EP |
1671 | int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, |
1672 | int cap); | |
3486740a SH |
1673 | int security_real_capable(struct task_struct *tsk, struct user_namespace *ns, |
1674 | int cap); | |
1675 | int security_real_capable_noaudit(struct task_struct *tsk, | |
1676 | struct user_namespace *ns, int cap); | |
20510f2f JM |
1677 | int security_quotactl(int cmds, int type, int id, struct super_block *sb); |
1678 | int security_quota_on(struct dentry *dentry); | |
12b3052c | 1679 | int security_syslog(int type); |
1e6d7679 | 1680 | int security_settime(const struct timespec *ts, const struct timezone *tz); |
20510f2f JM |
1681 | int security_vm_enough_memory(long pages); |
1682 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); | |
731572d3 | 1683 | int security_vm_enough_memory_kern(long pages); |
a6f76f23 | 1684 | int security_bprm_set_creds(struct linux_binprm *bprm); |
20510f2f | 1685 | int security_bprm_check(struct linux_binprm *bprm); |
a6f76f23 DH |
1686 | void security_bprm_committing_creds(struct linux_binprm *bprm); |
1687 | void security_bprm_committed_creds(struct linux_binprm *bprm); | |
20510f2f JM |
1688 | int security_bprm_secureexec(struct linux_binprm *bprm); |
1689 | int security_sb_alloc(struct super_block *sb); | |
1690 | void security_sb_free(struct super_block *sb); | |
e0007529 | 1691 | int security_sb_copy_data(char *orig, char *copy); |
ff36fe2c | 1692 | int security_sb_remount(struct super_block *sb, void *data); |
12204e24 | 1693 | int security_sb_kern_mount(struct super_block *sb, int flags, void *data); |
2069f457 | 1694 | int security_sb_show_options(struct seq_file *m, struct super_block *sb); |
20510f2f | 1695 | int security_sb_statfs(struct dentry *dentry); |
b5266eb4 | 1696 | int security_sb_mount(char *dev_name, struct path *path, |
7b41b173 | 1697 | char *type, unsigned long flags, void *data); |
20510f2f | 1698 | int security_sb_umount(struct vfsmount *mnt, int flags); |
b5266eb4 | 1699 | int security_sb_pivotroot(struct path *old_path, struct path *new_path); |
e0007529 | 1700 | int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts); |
c9180a57 EP |
1701 | void security_sb_clone_mnt_opts(const struct super_block *oldsb, |
1702 | struct super_block *newsb); | |
e0007529 | 1703 | int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts); |
c9180a57 | 1704 | |
20510f2f JM |
1705 | int security_inode_alloc(struct inode *inode); |
1706 | void security_inode_free(struct inode *inode); | |
1707 | int security_inode_init_security(struct inode *inode, struct inode *dir, | |
2a7dba39 EP |
1708 | const struct qstr *qstr, char **name, |
1709 | void **value, size_t *len); | |
20510f2f JM |
1710 | int security_inode_create(struct inode *dir, struct dentry *dentry, int mode); |
1711 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, | |
1712 | struct dentry *new_dentry); | |
1713 | int security_inode_unlink(struct inode *dir, struct dentry *dentry); | |
1714 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
7b41b173 | 1715 | const char *old_name); |
20510f2f JM |
1716 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode); |
1717 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry); | |
1718 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev); | |
1719 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, | |
7b41b173 | 1720 | struct inode *new_dir, struct dentry *new_dentry); |
20510f2f JM |
1721 | int security_inode_readlink(struct dentry *dentry); |
1722 | int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd); | |
b77b0646 | 1723 | int security_inode_permission(struct inode *inode, int mask); |
20510f2f JM |
1724 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr); |
1725 | int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry); | |
8f0cfa52 DH |
1726 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
1727 | const void *value, size_t size, int flags); | |
1728 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, | |
1729 | const void *value, size_t size, int flags); | |
1730 | int security_inode_getxattr(struct dentry *dentry, const char *name); | |
20510f2f | 1731 | int security_inode_listxattr(struct dentry *dentry); |
8f0cfa52 | 1732 | int security_inode_removexattr(struct dentry *dentry, const char *name); |
b5376771 SH |
1733 | int security_inode_need_killpriv(struct dentry *dentry); |
1734 | int security_inode_killpriv(struct dentry *dentry); | |
42492594 | 1735 | int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc); |
20510f2f JM |
1736 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); |
1737 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); | |
8a076191 | 1738 | void security_inode_getsecid(const struct inode *inode, u32 *secid); |
20510f2f JM |
1739 | int security_file_permission(struct file *file, int mask); |
1740 | int security_file_alloc(struct file *file); | |
1741 | void security_file_free(struct file *file); | |
1742 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); | |
1743 | int security_file_mmap(struct file *file, unsigned long reqprot, | |
1744 | unsigned long prot, unsigned long flags, | |
1745 | unsigned long addr, unsigned long addr_only); | |
1746 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, | |
7b41b173 | 1747 | unsigned long prot); |
20510f2f JM |
1748 | int security_file_lock(struct file *file, unsigned int cmd); |
1749 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); | |
1750 | int security_file_set_fowner(struct file *file); | |
1751 | int security_file_send_sigiotask(struct task_struct *tsk, | |
7b41b173 | 1752 | struct fown_struct *fown, int sig); |
20510f2f | 1753 | int security_file_receive(struct file *file); |
745ca247 | 1754 | int security_dentry_open(struct file *file, const struct cred *cred); |
20510f2f | 1755 | int security_task_create(unsigned long clone_flags); |
ee18d64c | 1756 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); |
f1752eec | 1757 | void security_cred_free(struct cred *cred); |
d84f4f99 | 1758 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); |
ee18d64c | 1759 | void security_transfer_creds(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1760 | int security_kernel_act_as(struct cred *new, u32 secid); |
1761 | int security_kernel_create_files_as(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1762 | int security_kernel_module_request(char *kmod_name); |
d84f4f99 DH |
1763 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1764 | int flags); | |
20510f2f JM |
1765 | int security_task_setpgid(struct task_struct *p, pid_t pgid); |
1766 | int security_task_getpgid(struct task_struct *p); | |
1767 | int security_task_getsid(struct task_struct *p); | |
1768 | void security_task_getsecid(struct task_struct *p, u32 *secid); | |
20510f2f JM |
1769 | int security_task_setnice(struct task_struct *p, int nice); |
1770 | int security_task_setioprio(struct task_struct *p, int ioprio); | |
1771 | int security_task_getioprio(struct task_struct *p); | |
8fd00b4d JS |
1772 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
1773 | struct rlimit *new_rlim); | |
b0ae1981 | 1774 | int security_task_setscheduler(struct task_struct *p); |
20510f2f JM |
1775 | int security_task_getscheduler(struct task_struct *p); |
1776 | int security_task_movememory(struct task_struct *p); | |
1777 | int security_task_kill(struct task_struct *p, struct siginfo *info, | |
1778 | int sig, u32 secid); | |
1779 | int security_task_wait(struct task_struct *p); | |
1780 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, | |
d84f4f99 | 1781 | unsigned long arg4, unsigned long arg5); |
20510f2f JM |
1782 | void security_task_to_inode(struct task_struct *p, struct inode *inode); |
1783 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); | |
8a076191 | 1784 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid); |
20510f2f JM |
1785 | int security_msg_msg_alloc(struct msg_msg *msg); |
1786 | void security_msg_msg_free(struct msg_msg *msg); | |
1787 | int security_msg_queue_alloc(struct msg_queue *msq); | |
1788 | void security_msg_queue_free(struct msg_queue *msq); | |
1789 | int security_msg_queue_associate(struct msg_queue *msq, int msqflg); | |
1790 | int security_msg_queue_msgctl(struct msg_queue *msq, int cmd); | |
1791 | int security_msg_queue_msgsnd(struct msg_queue *msq, | |
7b41b173 | 1792 | struct msg_msg *msg, int msqflg); |
20510f2f | 1793 | int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, |
7b41b173 | 1794 | struct task_struct *target, long type, int mode); |
20510f2f JM |
1795 | int security_shm_alloc(struct shmid_kernel *shp); |
1796 | void security_shm_free(struct shmid_kernel *shp); | |
1797 | int security_shm_associate(struct shmid_kernel *shp, int shmflg); | |
1798 | int security_shm_shmctl(struct shmid_kernel *shp, int cmd); | |
1799 | int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg); | |
1800 | int security_sem_alloc(struct sem_array *sma); | |
1801 | void security_sem_free(struct sem_array *sma); | |
1802 | int security_sem_associate(struct sem_array *sma, int semflg); | |
1803 | int security_sem_semctl(struct sem_array *sma, int cmd); | |
1804 | int security_sem_semop(struct sem_array *sma, struct sembuf *sops, | |
1805 | unsigned nsops, int alter); | |
7b41b173 | 1806 | void security_d_instantiate(struct dentry *dentry, struct inode *inode); |
20510f2f JM |
1807 | int security_getprocattr(struct task_struct *p, char *name, char **value); |
1808 | int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size); | |
1809 | int security_netlink_send(struct sock *sk, struct sk_buff *skb); | |
1810 | int security_netlink_recv(struct sk_buff *skb, int cap); | |
1811 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); | |
7bf570dc | 1812 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); |
20510f2f JM |
1813 | void security_release_secctx(char *secdata, u32 seclen); |
1814 | ||
1ee65e37 DQ |
1815 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); |
1816 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1817 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); | |
1da177e4 | 1818 | #else /* CONFIG_SECURITY */ |
e0007529 EP |
1819 | struct security_mnt_opts { |
1820 | }; | |
1821 | ||
1822 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
1823 | { | |
1824 | } | |
1825 | ||
1826 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
1827 | { | |
1828 | } | |
1da177e4 LT |
1829 | |
1830 | /* | |
1831 | * This is the default capabilities functionality. Most of these functions | |
1832 | * are just stubbed out, but a few must call the proper capable code. | |
1833 | */ | |
1834 | ||
1835 | static inline int security_init(void) | |
1836 | { | |
1837 | return 0; | |
1838 | } | |
1839 | ||
9e48858f | 1840 | static inline int security_ptrace_access_check(struct task_struct *child, |
5cd9c58f DH |
1841 | unsigned int mode) |
1842 | { | |
9e48858f | 1843 | return cap_ptrace_access_check(child, mode); |
5cd9c58f DH |
1844 | } |
1845 | ||
5e186b57 | 1846 | static inline int security_ptrace_traceme(struct task_struct *parent) |
1da177e4 | 1847 | { |
5cd9c58f | 1848 | return cap_ptrace_traceme(parent); |
1da177e4 LT |
1849 | } |
1850 | ||
7b41b173 | 1851 | static inline int security_capget(struct task_struct *target, |
1da177e4 LT |
1852 | kernel_cap_t *effective, |
1853 | kernel_cap_t *inheritable, | |
1854 | kernel_cap_t *permitted) | |
1855 | { | |
7b41b173 | 1856 | return cap_capget(target, effective, inheritable, permitted); |
1da177e4 LT |
1857 | } |
1858 | ||
d84f4f99 DH |
1859 | static inline int security_capset(struct cred *new, |
1860 | const struct cred *old, | |
1861 | const kernel_cap_t *effective, | |
1862 | const kernel_cap_t *inheritable, | |
1863 | const kernel_cap_t *permitted) | |
1da177e4 | 1864 | { |
d84f4f99 | 1865 | return cap_capset(new, old, effective, inheritable, permitted); |
1da177e4 LT |
1866 | } |
1867 | ||
b7e724d3 EP |
1868 | static inline int security_capable(const struct cred *cred, |
1869 | struct user_namespace *ns, int cap) | |
12b5989b | 1870 | { |
6a9de491 | 1871 | return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT); |
06112163 EP |
1872 | } |
1873 | ||
c7eba4a9 EP |
1874 | static inline int security_capable_noaudit(const struct cred *cred, |
1875 | struct user_namespace *ns, int cap) { | |
1876 | return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT); | |
1877 | } | |
1878 | ||
3486740a | 1879 | static inline int security_real_capable(struct task_struct *tsk, struct user_namespace *ns, int cap) |
06112163 | 1880 | { |
3699c53c DH |
1881 | int ret; |
1882 | ||
1883 | rcu_read_lock(); | |
6a9de491 | 1884 | ret = cap_capable(__task_cred(tsk), ns, cap, SECURITY_CAP_AUDIT); |
3699c53c DH |
1885 | rcu_read_unlock(); |
1886 | return ret; | |
1887 | } | |
1888 | ||
1889 | static inline | |
3486740a | 1890 | int security_real_capable_noaudit(struct task_struct *tsk, struct user_namespace *ns, int cap) |
3699c53c DH |
1891 | { |
1892 | int ret; | |
1893 | ||
1894 | rcu_read_lock(); | |
6a9de491 | 1895 | ret = cap_capable(__task_cred(tsk), ns, cap, SECURITY_CAP_NOAUDIT); |
3699c53c DH |
1896 | rcu_read_unlock(); |
1897 | return ret; | |
12b5989b CW |
1898 | } |
1899 | ||
7b41b173 EP |
1900 | static inline int security_quotactl(int cmds, int type, int id, |
1901 | struct super_block *sb) | |
1da177e4 LT |
1902 | { |
1903 | return 0; | |
1904 | } | |
1905 | ||
7b41b173 | 1906 | static inline int security_quota_on(struct dentry *dentry) |
1da177e4 LT |
1907 | { |
1908 | return 0; | |
1909 | } | |
1910 | ||
12b3052c | 1911 | static inline int security_syslog(int type) |
1da177e4 | 1912 | { |
12b3052c | 1913 | return 0; |
1da177e4 LT |
1914 | } |
1915 | ||
1e6d7679 RC |
1916 | static inline int security_settime(const struct timespec *ts, |
1917 | const struct timezone *tz) | |
1da177e4 LT |
1918 | { |
1919 | return cap_settime(ts, tz); | |
1920 | } | |
1921 | ||
1922 | static inline int security_vm_enough_memory(long pages) | |
1923 | { | |
1b79cd04 | 1924 | WARN_ON(current->mm == NULL); |
34b4e4aa AC |
1925 | return cap_vm_enough_memory(current->mm, pages); |
1926 | } | |
1927 | ||
1b79cd04 | 1928 | static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
731572d3 | 1929 | { |
1b79cd04 JO |
1930 | WARN_ON(mm == NULL); |
1931 | return cap_vm_enough_memory(mm, pages); | |
731572d3 AC |
1932 | } |
1933 | ||
1b79cd04 | 1934 | static inline int security_vm_enough_memory_kern(long pages) |
34b4e4aa | 1935 | { |
1b79cd04 JO |
1936 | /* If current->mm is a kernel thread then we will pass NULL, |
1937 | for this specific case that is fine */ | |
1938 | return cap_vm_enough_memory(current->mm, pages); | |
1da177e4 LT |
1939 | } |
1940 | ||
a6f76f23 | 1941 | static inline int security_bprm_set_creds(struct linux_binprm *bprm) |
7b41b173 | 1942 | { |
a6f76f23 | 1943 | return cap_bprm_set_creds(bprm); |
1da177e4 LT |
1944 | } |
1945 | ||
a6f76f23 | 1946 | static inline int security_bprm_check(struct linux_binprm *bprm) |
1da177e4 | 1947 | { |
a6f76f23 | 1948 | return 0; |
1da177e4 LT |
1949 | } |
1950 | ||
a6f76f23 | 1951 | static inline void security_bprm_committing_creds(struct linux_binprm *bprm) |
1da177e4 | 1952 | { |
1da177e4 LT |
1953 | } |
1954 | ||
a6f76f23 | 1955 | static inline void security_bprm_committed_creds(struct linux_binprm *bprm) |
1da177e4 | 1956 | { |
1da177e4 LT |
1957 | } |
1958 | ||
7b41b173 | 1959 | static inline int security_bprm_secureexec(struct linux_binprm *bprm) |
1da177e4 LT |
1960 | { |
1961 | return cap_bprm_secureexec(bprm); | |
1962 | } | |
1963 | ||
7b41b173 | 1964 | static inline int security_sb_alloc(struct super_block *sb) |
1da177e4 LT |
1965 | { |
1966 | return 0; | |
1967 | } | |
1968 | ||
7b41b173 | 1969 | static inline void security_sb_free(struct super_block *sb) |
1da177e4 LT |
1970 | { } |
1971 | ||
7b41b173 | 1972 | static inline int security_sb_copy_data(char *orig, char *copy) |
1da177e4 LT |
1973 | { |
1974 | return 0; | |
1975 | } | |
1976 | ||
ff36fe2c EP |
1977 | static inline int security_sb_remount(struct super_block *sb, void *data) |
1978 | { | |
1979 | return 0; | |
1980 | } | |
1981 | ||
12204e24 | 1982 | static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data) |
1da177e4 LT |
1983 | { |
1984 | return 0; | |
1985 | } | |
1986 | ||
2069f457 EP |
1987 | static inline int security_sb_show_options(struct seq_file *m, |
1988 | struct super_block *sb) | |
1989 | { | |
1990 | return 0; | |
1991 | } | |
1992 | ||
7b41b173 | 1993 | static inline int security_sb_statfs(struct dentry *dentry) |
1da177e4 LT |
1994 | { |
1995 | return 0; | |
1996 | } | |
1997 | ||
7b41b173 | 1998 | static inline int security_sb_mount(char *dev_name, struct path *path, |
1da177e4 LT |
1999 | char *type, unsigned long flags, |
2000 | void *data) | |
2001 | { | |
2002 | return 0; | |
2003 | } | |
2004 | ||
7b41b173 | 2005 | static inline int security_sb_umount(struct vfsmount *mnt, int flags) |
1da177e4 LT |
2006 | { |
2007 | return 0; | |
2008 | } | |
2009 | ||
7b41b173 EP |
2010 | static inline int security_sb_pivotroot(struct path *old_path, |
2011 | struct path *new_path) | |
1da177e4 LT |
2012 | { |
2013 | return 0; | |
2014 | } | |
2015 | ||
e0007529 EP |
2016 | static inline int security_sb_set_mnt_opts(struct super_block *sb, |
2017 | struct security_mnt_opts *opts) | |
2018 | { | |
2019 | return 0; | |
2020 | } | |
2021 | ||
2022 | static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb, | |
2023 | struct super_block *newsb) | |
2024 | { } | |
2025 | ||
2026 | static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) | |
2027 | { | |
2028 | return 0; | |
2029 | } | |
1da177e4 | 2030 | |
7b41b173 | 2031 | static inline int security_inode_alloc(struct inode *inode) |
1da177e4 LT |
2032 | { |
2033 | return 0; | |
2034 | } | |
2035 | ||
7b41b173 | 2036 | static inline void security_inode_free(struct inode *inode) |
1da177e4 | 2037 | { } |
5e41ff9e | 2038 | |
7b41b173 | 2039 | static inline int security_inode_init_security(struct inode *inode, |
5e41ff9e | 2040 | struct inode *dir, |
2a7dba39 | 2041 | const struct qstr *qstr, |
5e41ff9e SS |
2042 | char **name, |
2043 | void **value, | |
2044 | size_t *len) | |
2045 | { | |
2046 | return -EOPNOTSUPP; | |
2047 | } | |
7b41b173 EP |
2048 | |
2049 | static inline int security_inode_create(struct inode *dir, | |
1da177e4 LT |
2050 | struct dentry *dentry, |
2051 | int mode) | |
2052 | { | |
2053 | return 0; | |
2054 | } | |
2055 | ||
7b41b173 | 2056 | static inline int security_inode_link(struct dentry *old_dentry, |
1da177e4 LT |
2057 | struct inode *dir, |
2058 | struct dentry *new_dentry) | |
2059 | { | |
2060 | return 0; | |
2061 | } | |
2062 | ||
7b41b173 | 2063 | static inline int security_inode_unlink(struct inode *dir, |
1da177e4 LT |
2064 | struct dentry *dentry) |
2065 | { | |
2066 | return 0; | |
2067 | } | |
2068 | ||
7b41b173 | 2069 | static inline int security_inode_symlink(struct inode *dir, |
1da177e4 LT |
2070 | struct dentry *dentry, |
2071 | const char *old_name) | |
2072 | { | |
2073 | return 0; | |
2074 | } | |
2075 | ||
7b41b173 | 2076 | static inline int security_inode_mkdir(struct inode *dir, |
1da177e4 LT |
2077 | struct dentry *dentry, |
2078 | int mode) | |
2079 | { | |
2080 | return 0; | |
2081 | } | |
2082 | ||
7b41b173 | 2083 | static inline int security_inode_rmdir(struct inode *dir, |
1da177e4 LT |
2084 | struct dentry *dentry) |
2085 | { | |
2086 | return 0; | |
2087 | } | |
2088 | ||
7b41b173 | 2089 | static inline int security_inode_mknod(struct inode *dir, |
1da177e4 LT |
2090 | struct dentry *dentry, |
2091 | int mode, dev_t dev) | |
2092 | { | |
2093 | return 0; | |
2094 | } | |
2095 | ||
7b41b173 | 2096 | static inline int security_inode_rename(struct inode *old_dir, |
1da177e4 LT |
2097 | struct dentry *old_dentry, |
2098 | struct inode *new_dir, | |
2099 | struct dentry *new_dentry) | |
2100 | { | |
2101 | return 0; | |
2102 | } | |
2103 | ||
7b41b173 | 2104 | static inline int security_inode_readlink(struct dentry *dentry) |
1da177e4 LT |
2105 | { |
2106 | return 0; | |
2107 | } | |
2108 | ||
7b41b173 | 2109 | static inline int security_inode_follow_link(struct dentry *dentry, |
1da177e4 LT |
2110 | struct nameidata *nd) |
2111 | { | |
2112 | return 0; | |
2113 | } | |
2114 | ||
b77b0646 | 2115 | static inline int security_inode_permission(struct inode *inode, int mask) |
1da177e4 LT |
2116 | { |
2117 | return 0; | |
2118 | } | |
2119 | ||
7b41b173 | 2120 | static inline int security_inode_setattr(struct dentry *dentry, |
1da177e4 LT |
2121 | struct iattr *attr) |
2122 | { | |
2123 | return 0; | |
2124 | } | |
2125 | ||
7b41b173 | 2126 | static inline int security_inode_getattr(struct vfsmount *mnt, |
1da177e4 LT |
2127 | struct dentry *dentry) |
2128 | { | |
2129 | return 0; | |
2130 | } | |
2131 | ||
8f0cfa52 DH |
2132 | static inline int security_inode_setxattr(struct dentry *dentry, |
2133 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2134 | { |
2135 | return cap_inode_setxattr(dentry, name, value, size, flags); | |
2136 | } | |
2137 | ||
8f0cfa52 DH |
2138 | static inline void security_inode_post_setxattr(struct dentry *dentry, |
2139 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2140 | { } |
2141 | ||
8f0cfa52 DH |
2142 | static inline int security_inode_getxattr(struct dentry *dentry, |
2143 | const char *name) | |
1da177e4 LT |
2144 | { |
2145 | return 0; | |
2146 | } | |
2147 | ||
7b41b173 | 2148 | static inline int security_inode_listxattr(struct dentry *dentry) |
1da177e4 LT |
2149 | { |
2150 | return 0; | |
2151 | } | |
2152 | ||
8f0cfa52 DH |
2153 | static inline int security_inode_removexattr(struct dentry *dentry, |
2154 | const char *name) | |
1da177e4 LT |
2155 | { |
2156 | return cap_inode_removexattr(dentry, name); | |
2157 | } | |
2158 | ||
b5376771 SH |
2159 | static inline int security_inode_need_killpriv(struct dentry *dentry) |
2160 | { | |
2161 | return cap_inode_need_killpriv(dentry); | |
2162 | } | |
2163 | ||
2164 | static inline int security_inode_killpriv(struct dentry *dentry) | |
2165 | { | |
2166 | return cap_inode_killpriv(dentry); | |
2167 | } | |
2168 | ||
42492594 | 2169 | static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) |
1da177e4 LT |
2170 | { |
2171 | return -EOPNOTSUPP; | |
2172 | } | |
2173 | ||
2174 | static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
2175 | { | |
2176 | return -EOPNOTSUPP; | |
2177 | } | |
2178 | ||
2179 | static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
2180 | { | |
2181 | return 0; | |
2182 | } | |
2183 | ||
8a076191 AD |
2184 | static inline void security_inode_getsecid(const struct inode *inode, u32 *secid) |
2185 | { | |
2186 | *secid = 0; | |
2187 | } | |
2188 | ||
7b41b173 | 2189 | static inline int security_file_permission(struct file *file, int mask) |
1da177e4 LT |
2190 | { |
2191 | return 0; | |
2192 | } | |
2193 | ||
7b41b173 | 2194 | static inline int security_file_alloc(struct file *file) |
1da177e4 LT |
2195 | { |
2196 | return 0; | |
2197 | } | |
2198 | ||
7b41b173 | 2199 | static inline void security_file_free(struct file *file) |
1da177e4 LT |
2200 | { } |
2201 | ||
7b41b173 EP |
2202 | static inline int security_file_ioctl(struct file *file, unsigned int cmd, |
2203 | unsigned long arg) | |
1da177e4 LT |
2204 | { |
2205 | return 0; | |
2206 | } | |
2207 | ||
7b41b173 EP |
2208 | static inline int security_file_mmap(struct file *file, unsigned long reqprot, |
2209 | unsigned long prot, | |
2210 | unsigned long flags, | |
2211 | unsigned long addr, | |
2212 | unsigned long addr_only) | |
1da177e4 | 2213 | { |
7c73875e | 2214 | return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only); |
1da177e4 LT |
2215 | } |
2216 | ||
7b41b173 EP |
2217 | static inline int security_file_mprotect(struct vm_area_struct *vma, |
2218 | unsigned long reqprot, | |
2219 | unsigned long prot) | |
1da177e4 LT |
2220 | { |
2221 | return 0; | |
2222 | } | |
2223 | ||
7b41b173 | 2224 | static inline int security_file_lock(struct file *file, unsigned int cmd) |
1da177e4 LT |
2225 | { |
2226 | return 0; | |
2227 | } | |
2228 | ||
7b41b173 EP |
2229 | static inline int security_file_fcntl(struct file *file, unsigned int cmd, |
2230 | unsigned long arg) | |
1da177e4 LT |
2231 | { |
2232 | return 0; | |
2233 | } | |
2234 | ||
7b41b173 | 2235 | static inline int security_file_set_fowner(struct file *file) |
1da177e4 LT |
2236 | { |
2237 | return 0; | |
2238 | } | |
2239 | ||
7b41b173 EP |
2240 | static inline int security_file_send_sigiotask(struct task_struct *tsk, |
2241 | struct fown_struct *fown, | |
2242 | int sig) | |
1da177e4 LT |
2243 | { |
2244 | return 0; | |
2245 | } | |
2246 | ||
7b41b173 | 2247 | static inline int security_file_receive(struct file *file) |
1da177e4 LT |
2248 | { |
2249 | return 0; | |
2250 | } | |
2251 | ||
745ca247 DH |
2252 | static inline int security_dentry_open(struct file *file, |
2253 | const struct cred *cred) | |
788e7dd4 YN |
2254 | { |
2255 | return 0; | |
2256 | } | |
2257 | ||
7b41b173 | 2258 | static inline int security_task_create(unsigned long clone_flags) |
1da177e4 LT |
2259 | { |
2260 | return 0; | |
2261 | } | |
2262 | ||
945af7c3 DH |
2263 | static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
2264 | { | |
2265 | return 0; | |
2266 | } | |
ee18d64c | 2267 | |
d84f4f99 DH |
2268 | static inline void security_cred_free(struct cred *cred) |
2269 | { } | |
2270 | ||
2271 | static inline int security_prepare_creds(struct cred *new, | |
2272 | const struct cred *old, | |
2273 | gfp_t gfp) | |
1da177e4 LT |
2274 | { |
2275 | return 0; | |
2276 | } | |
2277 | ||
ee18d64c DH |
2278 | static inline void security_transfer_creds(struct cred *new, |
2279 | const struct cred *old) | |
2280 | { | |
2281 | } | |
2282 | ||
3a3b7ce9 DH |
2283 | static inline int security_kernel_act_as(struct cred *cred, u32 secid) |
2284 | { | |
2285 | return 0; | |
2286 | } | |
2287 | ||
2288 | static inline int security_kernel_create_files_as(struct cred *cred, | |
2289 | struct inode *inode) | |
2290 | { | |
2291 | return 0; | |
2292 | } | |
2293 | ||
dd8dbf2e | 2294 | static inline int security_kernel_module_request(char *kmod_name) |
9188499c EP |
2295 | { |
2296 | return 0; | |
1da177e4 LT |
2297 | } |
2298 | ||
d84f4f99 DH |
2299 | static inline int security_task_fix_setuid(struct cred *new, |
2300 | const struct cred *old, | |
2301 | int flags) | |
1da177e4 | 2302 | { |
d84f4f99 | 2303 | return cap_task_fix_setuid(new, old, flags); |
1da177e4 LT |
2304 | } |
2305 | ||
7b41b173 | 2306 | static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1da177e4 LT |
2307 | { |
2308 | return 0; | |
2309 | } | |
2310 | ||
7b41b173 | 2311 | static inline int security_task_getpgid(struct task_struct *p) |
1da177e4 LT |
2312 | { |
2313 | return 0; | |
2314 | } | |
2315 | ||
7b41b173 | 2316 | static inline int security_task_getsid(struct task_struct *p) |
1da177e4 LT |
2317 | { |
2318 | return 0; | |
2319 | } | |
2320 | ||
7b41b173 | 2321 | static inline void security_task_getsecid(struct task_struct *p, u32 *secid) |
8a076191 AD |
2322 | { |
2323 | *secid = 0; | |
2324 | } | |
f9008e4c | 2325 | |
7b41b173 | 2326 | static inline int security_task_setnice(struct task_struct *p, int nice) |
1da177e4 | 2327 | { |
b5376771 | 2328 | return cap_task_setnice(p, nice); |
1da177e4 LT |
2329 | } |
2330 | ||
7b41b173 | 2331 | static inline int security_task_setioprio(struct task_struct *p, int ioprio) |
03e68060 | 2332 | { |
b5376771 | 2333 | return cap_task_setioprio(p, ioprio); |
03e68060 JM |
2334 | } |
2335 | ||
7b41b173 | 2336 | static inline int security_task_getioprio(struct task_struct *p) |
a1836a42 DQ |
2337 | { |
2338 | return 0; | |
2339 | } | |
2340 | ||
8fd00b4d JS |
2341 | static inline int security_task_setrlimit(struct task_struct *p, |
2342 | unsigned int resource, | |
7b41b173 | 2343 | struct rlimit *new_rlim) |
1da177e4 LT |
2344 | { |
2345 | return 0; | |
2346 | } | |
2347 | ||
b0ae1981 | 2348 | static inline int security_task_setscheduler(struct task_struct *p) |
1da177e4 | 2349 | { |
b0ae1981 | 2350 | return cap_task_setscheduler(p); |
1da177e4 LT |
2351 | } |
2352 | ||
7b41b173 | 2353 | static inline int security_task_getscheduler(struct task_struct *p) |
1da177e4 LT |
2354 | { |
2355 | return 0; | |
2356 | } | |
2357 | ||
7b41b173 | 2358 | static inline int security_task_movememory(struct task_struct *p) |
35601547 DQ |
2359 | { |
2360 | return 0; | |
2361 | } | |
2362 | ||
7b41b173 EP |
2363 | static inline int security_task_kill(struct task_struct *p, |
2364 | struct siginfo *info, int sig, | |
2365 | u32 secid) | |
1da177e4 | 2366 | { |
aedb60a6 | 2367 | return 0; |
1da177e4 LT |
2368 | } |
2369 | ||
7b41b173 | 2370 | static inline int security_task_wait(struct task_struct *p) |
1da177e4 LT |
2371 | { |
2372 | return 0; | |
2373 | } | |
2374 | ||
7b41b173 EP |
2375 | static inline int security_task_prctl(int option, unsigned long arg2, |
2376 | unsigned long arg3, | |
2377 | unsigned long arg4, | |
d84f4f99 | 2378 | unsigned long arg5) |
1da177e4 | 2379 | { |
d84f4f99 | 2380 | return cap_task_prctl(option, arg2, arg3, arg3, arg5); |
1da177e4 LT |
2381 | } |
2382 | ||
2383 | static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
2384 | { } | |
2385 | ||
7b41b173 EP |
2386 | static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, |
2387 | short flag) | |
1da177e4 LT |
2388 | { |
2389 | return 0; | |
2390 | } | |
2391 | ||
8a076191 AD |
2392 | static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
2393 | { | |
2394 | *secid = 0; | |
2395 | } | |
2396 | ||
7b41b173 | 2397 | static inline int security_msg_msg_alloc(struct msg_msg *msg) |
1da177e4 LT |
2398 | { |
2399 | return 0; | |
2400 | } | |
2401 | ||
7b41b173 | 2402 | static inline void security_msg_msg_free(struct msg_msg *msg) |
1da177e4 LT |
2403 | { } |
2404 | ||
7b41b173 | 2405 | static inline int security_msg_queue_alloc(struct msg_queue *msq) |
1da177e4 LT |
2406 | { |
2407 | return 0; | |
2408 | } | |
2409 | ||
7b41b173 | 2410 | static inline void security_msg_queue_free(struct msg_queue *msq) |
1da177e4 LT |
2411 | { } |
2412 | ||
7b41b173 EP |
2413 | static inline int security_msg_queue_associate(struct msg_queue *msq, |
2414 | int msqflg) | |
1da177e4 LT |
2415 | { |
2416 | return 0; | |
2417 | } | |
2418 | ||
7b41b173 | 2419 | static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) |
1da177e4 LT |
2420 | { |
2421 | return 0; | |
2422 | } | |
2423 | ||
7b41b173 EP |
2424 | static inline int security_msg_queue_msgsnd(struct msg_queue *msq, |
2425 | struct msg_msg *msg, int msqflg) | |
1da177e4 LT |
2426 | { |
2427 | return 0; | |
2428 | } | |
2429 | ||
7b41b173 EP |
2430 | static inline int security_msg_queue_msgrcv(struct msg_queue *msq, |
2431 | struct msg_msg *msg, | |
2432 | struct task_struct *target, | |
2433 | long type, int mode) | |
1da177e4 LT |
2434 | { |
2435 | return 0; | |
2436 | } | |
2437 | ||
7b41b173 | 2438 | static inline int security_shm_alloc(struct shmid_kernel *shp) |
1da177e4 LT |
2439 | { |
2440 | return 0; | |
2441 | } | |
2442 | ||
7b41b173 | 2443 | static inline void security_shm_free(struct shmid_kernel *shp) |
1da177e4 LT |
2444 | { } |
2445 | ||
7b41b173 EP |
2446 | static inline int security_shm_associate(struct shmid_kernel *shp, |
2447 | int shmflg) | |
1da177e4 LT |
2448 | { |
2449 | return 0; | |
2450 | } | |
2451 | ||
7b41b173 | 2452 | static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd) |
1da177e4 LT |
2453 | { |
2454 | return 0; | |
2455 | } | |
2456 | ||
7b41b173 EP |
2457 | static inline int security_shm_shmat(struct shmid_kernel *shp, |
2458 | char __user *shmaddr, int shmflg) | |
1da177e4 LT |
2459 | { |
2460 | return 0; | |
2461 | } | |
2462 | ||
7b41b173 | 2463 | static inline int security_sem_alloc(struct sem_array *sma) |
1da177e4 LT |
2464 | { |
2465 | return 0; | |
2466 | } | |
2467 | ||
7b41b173 | 2468 | static inline void security_sem_free(struct sem_array *sma) |
1da177e4 LT |
2469 | { } |
2470 | ||
7b41b173 | 2471 | static inline int security_sem_associate(struct sem_array *sma, int semflg) |
1da177e4 LT |
2472 | { |
2473 | return 0; | |
2474 | } | |
2475 | ||
7b41b173 | 2476 | static inline int security_sem_semctl(struct sem_array *sma, int cmd) |
1da177e4 LT |
2477 | { |
2478 | return 0; | |
2479 | } | |
2480 | ||
7b41b173 EP |
2481 | static inline int security_sem_semop(struct sem_array *sma, |
2482 | struct sembuf *sops, unsigned nsops, | |
2483 | int alter) | |
1da177e4 LT |
2484 | { |
2485 | return 0; | |
2486 | } | |
2487 | ||
7b41b173 | 2488 | static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode) |
1da177e4 LT |
2489 | { } |
2490 | ||
04ff9708 | 2491 | static inline int security_getprocattr(struct task_struct *p, char *name, char **value) |
1da177e4 LT |
2492 | { |
2493 | return -EINVAL; | |
2494 | } | |
2495 | ||
2496 | static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) | |
2497 | { | |
2498 | return -EINVAL; | |
2499 | } | |
2500 | ||
7b41b173 | 2501 | static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) |
1da177e4 | 2502 | { |
7b41b173 | 2503 | return cap_netlink_send(sk, skb); |
1da177e4 LT |
2504 | } |
2505 | ||
7b41b173 | 2506 | static inline int security_netlink_recv(struct sk_buff *skb, int cap) |
1da177e4 | 2507 | { |
7b41b173 | 2508 | return cap_netlink_recv(skb, cap); |
1da177e4 LT |
2509 | } |
2510 | ||
dc49c1f9 CZ |
2511 | static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
2512 | { | |
2513 | return -EOPNOTSUPP; | |
2514 | } | |
2515 | ||
7bf570dc | 2516 | static inline int security_secctx_to_secid(const char *secdata, |
63cb3449 DH |
2517 | u32 seclen, |
2518 | u32 *secid) | |
2519 | { | |
2520 | return -EOPNOTSUPP; | |
2521 | } | |
2522 | ||
dc49c1f9 CZ |
2523 | static inline void security_release_secctx(char *secdata, u32 seclen) |
2524 | { | |
dc49c1f9 | 2525 | } |
1ee65e37 DQ |
2526 | |
2527 | static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) | |
2528 | { | |
2529 | return -EOPNOTSUPP; | |
2530 | } | |
2531 | static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
2532 | { | |
2533 | return -EOPNOTSUPP; | |
2534 | } | |
2535 | static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
2536 | { | |
2537 | return -EOPNOTSUPP; | |
2538 | } | |
1da177e4 LT |
2539 | #endif /* CONFIG_SECURITY */ |
2540 | ||
2541 | #ifdef CONFIG_SECURITY_NETWORK | |
4237c75c | 2542 | |
3610cda5 | 2543 | int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); |
20510f2f JM |
2544 | int security_unix_may_send(struct socket *sock, struct socket *other); |
2545 | int security_socket_create(int family, int type, int protocol, int kern); | |
2546 | int security_socket_post_create(struct socket *sock, int family, | |
2547 | int type, int protocol, int kern); | |
2548 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); | |
2549 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); | |
2550 | int security_socket_listen(struct socket *sock, int backlog); | |
2551 | int security_socket_accept(struct socket *sock, struct socket *newsock); | |
20510f2f JM |
2552 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); |
2553 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
2554 | int size, int flags); | |
2555 | int security_socket_getsockname(struct socket *sock); | |
2556 | int security_socket_getpeername(struct socket *sock); | |
2557 | int security_socket_getsockopt(struct socket *sock, int level, int optname); | |
2558 | int security_socket_setsockopt(struct socket *sock, int level, int optname); | |
2559 | int security_socket_shutdown(struct socket *sock, int how); | |
2560 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); | |
2561 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
2562 | int __user *optlen, unsigned len); | |
2563 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); | |
2564 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority); | |
2565 | void security_sk_free(struct sock *sk); | |
2566 | void security_sk_clone(const struct sock *sk, struct sock *newsk); | |
2567 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl); | |
2568 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); | |
2569 | void security_sock_graft(struct sock*sk, struct socket *parent); | |
2570 | int security_inet_conn_request(struct sock *sk, | |
2571 | struct sk_buff *skb, struct request_sock *req); | |
2572 | void security_inet_csk_clone(struct sock *newsk, | |
2573 | const struct request_sock *req); | |
2574 | void security_inet_conn_established(struct sock *sk, | |
2575 | struct sk_buff *skb); | |
2606fd1f EP |
2576 | int security_secmark_relabel_packet(u32 secid); |
2577 | void security_secmark_refcount_inc(void); | |
2578 | void security_secmark_refcount_dec(void); | |
2b980dbd PM |
2579 | int security_tun_dev_create(void); |
2580 | void security_tun_dev_post_create(struct sock *sk); | |
2581 | int security_tun_dev_attach(struct sock *sk); | |
6b877699 | 2582 | |
1da177e4 | 2583 | #else /* CONFIG_SECURITY_NETWORK */ |
3610cda5 DM |
2584 | static inline int security_unix_stream_connect(struct sock *sock, |
2585 | struct sock *other, | |
7b41b173 | 2586 | struct sock *newsk) |
1da177e4 LT |
2587 | { |
2588 | return 0; | |
2589 | } | |
2590 | ||
7b41b173 EP |
2591 | static inline int security_unix_may_send(struct socket *sock, |
2592 | struct socket *other) | |
1da177e4 LT |
2593 | { |
2594 | return 0; | |
2595 | } | |
2596 | ||
7b41b173 EP |
2597 | static inline int security_socket_create(int family, int type, |
2598 | int protocol, int kern) | |
1da177e4 LT |
2599 | { |
2600 | return 0; | |
2601 | } | |
2602 | ||
7b41b173 | 2603 | static inline int security_socket_post_create(struct socket *sock, |
7420ed23 VY |
2604 | int family, |
2605 | int type, | |
2606 | int protocol, int kern) | |
1da177e4 | 2607 | { |
7420ed23 | 2608 | return 0; |
1da177e4 LT |
2609 | } |
2610 | ||
7b41b173 EP |
2611 | static inline int security_socket_bind(struct socket *sock, |
2612 | struct sockaddr *address, | |
1da177e4 LT |
2613 | int addrlen) |
2614 | { | |
2615 | return 0; | |
2616 | } | |
2617 | ||
7b41b173 EP |
2618 | static inline int security_socket_connect(struct socket *sock, |
2619 | struct sockaddr *address, | |
1da177e4 LT |
2620 | int addrlen) |
2621 | { | |
2622 | return 0; | |
2623 | } | |
2624 | ||
7b41b173 | 2625 | static inline int security_socket_listen(struct socket *sock, int backlog) |
1da177e4 LT |
2626 | { |
2627 | return 0; | |
2628 | } | |
2629 | ||
7b41b173 EP |
2630 | static inline int security_socket_accept(struct socket *sock, |
2631 | struct socket *newsock) | |
1da177e4 LT |
2632 | { |
2633 | return 0; | |
2634 | } | |
2635 | ||
7b41b173 EP |
2636 | static inline int security_socket_sendmsg(struct socket *sock, |
2637 | struct msghdr *msg, int size) | |
1da177e4 LT |
2638 | { |
2639 | return 0; | |
2640 | } | |
2641 | ||
7b41b173 EP |
2642 | static inline int security_socket_recvmsg(struct socket *sock, |
2643 | struct msghdr *msg, int size, | |
1da177e4 LT |
2644 | int flags) |
2645 | { | |
2646 | return 0; | |
2647 | } | |
2648 | ||
7b41b173 | 2649 | static inline int security_socket_getsockname(struct socket *sock) |
1da177e4 LT |
2650 | { |
2651 | return 0; | |
2652 | } | |
2653 | ||
7b41b173 | 2654 | static inline int security_socket_getpeername(struct socket *sock) |
1da177e4 LT |
2655 | { |
2656 | return 0; | |
2657 | } | |
2658 | ||
7b41b173 | 2659 | static inline int security_socket_getsockopt(struct socket *sock, |
1da177e4 LT |
2660 | int level, int optname) |
2661 | { | |
2662 | return 0; | |
2663 | } | |
2664 | ||
7b41b173 | 2665 | static inline int security_socket_setsockopt(struct socket *sock, |
1da177e4 LT |
2666 | int level, int optname) |
2667 | { | |
2668 | return 0; | |
2669 | } | |
2670 | ||
7b41b173 | 2671 | static inline int security_socket_shutdown(struct socket *sock, int how) |
1da177e4 LT |
2672 | { |
2673 | return 0; | |
2674 | } | |
7b41b173 EP |
2675 | static inline int security_sock_rcv_skb(struct sock *sk, |
2676 | struct sk_buff *skb) | |
1da177e4 LT |
2677 | { |
2678 | return 0; | |
2679 | } | |
2680 | ||
2c7946a7 CZ |
2681 | static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, |
2682 | int __user *optlen, unsigned len) | |
2683 | { | |
2684 | return -ENOPROTOOPT; | |
2685 | } | |
2686 | ||
dc49c1f9 | 2687 | static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) |
1da177e4 LT |
2688 | { |
2689 | return -ENOPROTOOPT; | |
2690 | } | |
2691 | ||
dd0fc66f | 2692 | static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) |
1da177e4 LT |
2693 | { |
2694 | return 0; | |
2695 | } | |
2696 | ||
2697 | static inline void security_sk_free(struct sock *sk) | |
892c141e VY |
2698 | { |
2699 | } | |
2700 | ||
2701 | static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1da177e4 LT |
2702 | { |
2703 | } | |
df71837d | 2704 | |
beb8d13b | 2705 | static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl) |
df71837d | 2706 | { |
df71837d | 2707 | } |
4237c75c VY |
2708 | |
2709 | static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
2710 | { | |
2711 | } | |
2712 | ||
7b41b173 | 2713 | static inline void security_sock_graft(struct sock *sk, struct socket *parent) |
4237c75c VY |
2714 | { |
2715 | } | |
2716 | ||
2717 | static inline int security_inet_conn_request(struct sock *sk, | |
2718 | struct sk_buff *skb, struct request_sock *req) | |
2719 | { | |
2720 | return 0; | |
2721 | } | |
2722 | ||
2723 | static inline void security_inet_csk_clone(struct sock *newsk, | |
2724 | const struct request_sock *req) | |
2725 | { | |
2726 | } | |
6b877699 VY |
2727 | |
2728 | static inline void security_inet_conn_established(struct sock *sk, | |
2729 | struct sk_buff *skb) | |
2730 | { | |
2731 | } | |
2b980dbd | 2732 | |
2606fd1f EP |
2733 | static inline int security_secmark_relabel_packet(u32 secid) |
2734 | { | |
2735 | return 0; | |
2736 | } | |
2737 | ||
2738 | static inline void security_secmark_refcount_inc(void) | |
2739 | { | |
2740 | } | |
2741 | ||
2742 | static inline void security_secmark_refcount_dec(void) | |
2743 | { | |
2744 | } | |
2745 | ||
2b980dbd PM |
2746 | static inline int security_tun_dev_create(void) |
2747 | { | |
2748 | return 0; | |
2749 | } | |
2750 | ||
2751 | static inline void security_tun_dev_post_create(struct sock *sk) | |
2752 | { | |
2753 | } | |
2754 | ||
2755 | static inline int security_tun_dev_attach(struct sock *sk) | |
2756 | { | |
2757 | return 0; | |
2758 | } | |
1da177e4 LT |
2759 | #endif /* CONFIG_SECURITY_NETWORK */ |
2760 | ||
df71837d | 2761 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
beb8d13b | 2762 | |
03e1ad7b PM |
2763 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx); |
2764 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); | |
2765 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); | |
2766 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); | |
20510f2f JM |
2767 | int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); |
2768 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2769 | struct xfrm_sec_ctx *polsec, u32 secid); | |
2770 | int security_xfrm_state_delete(struct xfrm_state *x); | |
2771 | void security_xfrm_state_free(struct xfrm_state *x); | |
03e1ad7b | 2772 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
20510f2f | 2773 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, |
e33f7704 DM |
2774 | struct xfrm_policy *xp, |
2775 | const struct flowi *fl); | |
20510f2f JM |
2776 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); |
2777 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl); | |
beb8d13b | 2778 | |
df71837d | 2779 | #else /* CONFIG_SECURITY_NETWORK_XFRM */ |
20510f2f | 2780 | |
03e1ad7b | 2781 | static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) |
df71837d TJ |
2782 | { |
2783 | return 0; | |
2784 | } | |
2785 | ||
03e1ad7b | 2786 | static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) |
df71837d TJ |
2787 | { |
2788 | return 0; | |
2789 | } | |
2790 | ||
03e1ad7b | 2791 | static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
df71837d TJ |
2792 | { |
2793 | } | |
2794 | ||
03e1ad7b | 2795 | static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
c8c05a8e CZ |
2796 | { |
2797 | return 0; | |
2798 | } | |
2799 | ||
e0d1caa7 VY |
2800 | static inline int security_xfrm_state_alloc(struct xfrm_state *x, |
2801 | struct xfrm_user_sec_ctx *sec_ctx) | |
2802 | { | |
2803 | return 0; | |
2804 | } | |
2805 | ||
2806 | static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2807 | struct xfrm_sec_ctx *polsec, u32 secid) | |
df71837d TJ |
2808 | { |
2809 | return 0; | |
2810 | } | |
2811 | ||
2812 | static inline void security_xfrm_state_free(struct xfrm_state *x) | |
2813 | { | |
2814 | } | |
2815 | ||
6f68dc37 | 2816 | static inline int security_xfrm_state_delete(struct xfrm_state *x) |
c8c05a8e CZ |
2817 | { |
2818 | return 0; | |
2819 | } | |
2820 | ||
03e1ad7b | 2821 | static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
df71837d TJ |
2822 | { |
2823 | return 0; | |
2824 | } | |
e0d1caa7 VY |
2825 | |
2826 | static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
e33f7704 | 2827 | struct xfrm_policy *xp, const struct flowi *fl) |
e0d1caa7 VY |
2828 | { |
2829 | return 1; | |
2830 | } | |
2831 | ||
beb8d13b | 2832 | static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) |
e0d1caa7 VY |
2833 | { |
2834 | return 0; | |
2835 | } | |
2836 | ||
beb8d13b VY |
2837 | static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) |
2838 | { | |
2839 | } | |
2840 | ||
df71837d TJ |
2841 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
2842 | ||
be6d3e56 KT |
2843 | #ifdef CONFIG_SECURITY_PATH |
2844 | int security_path_unlink(struct path *dir, struct dentry *dentry); | |
2845 | int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode); | |
2846 | int security_path_rmdir(struct path *dir, struct dentry *dentry); | |
2847 | int security_path_mknod(struct path *dir, struct dentry *dentry, int mode, | |
2848 | unsigned int dev); | |
ea0d3ab2 | 2849 | int security_path_truncate(struct path *path); |
be6d3e56 KT |
2850 | int security_path_symlink(struct path *dir, struct dentry *dentry, |
2851 | const char *old_name); | |
2852 | int security_path_link(struct dentry *old_dentry, struct path *new_dir, | |
2853 | struct dentry *new_dentry); | |
2854 | int security_path_rename(struct path *old_dir, struct dentry *old_dentry, | |
2855 | struct path *new_dir, struct dentry *new_dentry); | |
89eda068 TH |
2856 | int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt, |
2857 | mode_t mode); | |
2858 | int security_path_chown(struct path *path, uid_t uid, gid_t gid); | |
8b8efb44 | 2859 | int security_path_chroot(struct path *path); |
be6d3e56 KT |
2860 | #else /* CONFIG_SECURITY_PATH */ |
2861 | static inline int security_path_unlink(struct path *dir, struct dentry *dentry) | |
2862 | { | |
2863 | return 0; | |
2864 | } | |
2865 | ||
2866 | static inline int security_path_mkdir(struct path *dir, struct dentry *dentry, | |
2867 | int mode) | |
2868 | { | |
2869 | return 0; | |
2870 | } | |
2871 | ||
2872 | static inline int security_path_rmdir(struct path *dir, struct dentry *dentry) | |
2873 | { | |
2874 | return 0; | |
2875 | } | |
2876 | ||
2877 | static inline int security_path_mknod(struct path *dir, struct dentry *dentry, | |
2878 | int mode, unsigned int dev) | |
2879 | { | |
2880 | return 0; | |
2881 | } | |
2882 | ||
ea0d3ab2 | 2883 | static inline int security_path_truncate(struct path *path) |
be6d3e56 KT |
2884 | { |
2885 | return 0; | |
2886 | } | |
2887 | ||
2888 | static inline int security_path_symlink(struct path *dir, struct dentry *dentry, | |
2889 | const char *old_name) | |
2890 | { | |
2891 | return 0; | |
2892 | } | |
2893 | ||
2894 | static inline int security_path_link(struct dentry *old_dentry, | |
2895 | struct path *new_dir, | |
2896 | struct dentry *new_dentry) | |
2897 | { | |
2898 | return 0; | |
2899 | } | |
2900 | ||
2901 | static inline int security_path_rename(struct path *old_dir, | |
2902 | struct dentry *old_dentry, | |
2903 | struct path *new_dir, | |
2904 | struct dentry *new_dentry) | |
2905 | { | |
2906 | return 0; | |
2907 | } | |
89eda068 TH |
2908 | |
2909 | static inline int security_path_chmod(struct dentry *dentry, | |
2910 | struct vfsmount *mnt, | |
2911 | mode_t mode) | |
2912 | { | |
2913 | return 0; | |
2914 | } | |
2915 | ||
2916 | static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid) | |
2917 | { | |
2918 | return 0; | |
2919 | } | |
8b8efb44 TH |
2920 | |
2921 | static inline int security_path_chroot(struct path *path) | |
2922 | { | |
2923 | return 0; | |
2924 | } | |
be6d3e56 KT |
2925 | #endif /* CONFIG_SECURITY_PATH */ |
2926 | ||
29db9190 DH |
2927 | #ifdef CONFIG_KEYS |
2928 | #ifdef CONFIG_SECURITY | |
29db9190 | 2929 | |
d84f4f99 | 2930 | int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); |
20510f2f JM |
2931 | void security_key_free(struct key *key); |
2932 | int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 2933 | const struct cred *cred, key_perm_t perm); |
70a5bb72 | 2934 | int security_key_getsecurity(struct key *key, char **_buffer); |
29db9190 DH |
2935 | |
2936 | #else | |
2937 | ||
d720024e | 2938 | static inline int security_key_alloc(struct key *key, |
d84f4f99 | 2939 | const struct cred *cred, |
7e047ef5 | 2940 | unsigned long flags) |
29db9190 DH |
2941 | { |
2942 | return 0; | |
2943 | } | |
2944 | ||
2945 | static inline void security_key_free(struct key *key) | |
2946 | { | |
2947 | } | |
2948 | ||
2949 | static inline int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 2950 | const struct cred *cred, |
29db9190 DH |
2951 | key_perm_t perm) |
2952 | { | |
2953 | return 0; | |
2954 | } | |
2955 | ||
70a5bb72 DH |
2956 | static inline int security_key_getsecurity(struct key *key, char **_buffer) |
2957 | { | |
2958 | *_buffer = NULL; | |
2959 | return 0; | |
be1d6a5f | 2960 | } |
ee18d64c | 2961 | |
29db9190 DH |
2962 | #endif |
2963 | #endif /* CONFIG_KEYS */ | |
2964 | ||
03d37d25 AD |
2965 | #ifdef CONFIG_AUDIT |
2966 | #ifdef CONFIG_SECURITY | |
2967 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule); | |
2968 | int security_audit_rule_known(struct audit_krule *krule); | |
2969 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
2970 | struct audit_context *actx); | |
2971 | void security_audit_rule_free(void *lsmrule); | |
2972 | ||
2973 | #else | |
2974 | ||
2975 | static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, | |
2976 | void **lsmrule) | |
2977 | { | |
2978 | return 0; | |
2979 | } | |
2980 | ||
2981 | static inline int security_audit_rule_known(struct audit_krule *krule) | |
2982 | { | |
2983 | return 0; | |
2984 | } | |
2985 | ||
2986 | static inline int security_audit_rule_match(u32 secid, u32 field, u32 op, | |
2987 | void *lsmrule, struct audit_context *actx) | |
2988 | { | |
2989 | return 0; | |
2990 | } | |
2991 | ||
2992 | static inline void security_audit_rule_free(void *lsmrule) | |
2993 | { } | |
2994 | ||
2995 | #endif /* CONFIG_SECURITY */ | |
2996 | #endif /* CONFIG_AUDIT */ | |
2997 | ||
da31894e EP |
2998 | #ifdef CONFIG_SECURITYFS |
2999 | ||
3000 | extern struct dentry *securityfs_create_file(const char *name, mode_t mode, | |
3001 | struct dentry *parent, void *data, | |
3002 | const struct file_operations *fops); | |
3003 | extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); | |
3004 | extern void securityfs_remove(struct dentry *dentry); | |
3005 | ||
3006 | #else /* CONFIG_SECURITYFS */ | |
3007 | ||
3008 | static inline struct dentry *securityfs_create_dir(const char *name, | |
3009 | struct dentry *parent) | |
3010 | { | |
3011 | return ERR_PTR(-ENODEV); | |
3012 | } | |
3013 | ||
3014 | static inline struct dentry *securityfs_create_file(const char *name, | |
3015 | mode_t mode, | |
3016 | struct dentry *parent, | |
3017 | void *data, | |
3018 | const struct file_operations *fops) | |
3019 | { | |
3020 | return ERR_PTR(-ENODEV); | |
3021 | } | |
3022 | ||
3023 | static inline void securityfs_remove(struct dentry *dentry) | |
3024 | {} | |
3025 | ||
3026 | #endif | |
3027 | ||
3d544f41 PE |
3028 | #ifdef CONFIG_SECURITY |
3029 | ||
3030 | static inline char *alloc_secdata(void) | |
3031 | { | |
3032 | return (char *)get_zeroed_page(GFP_KERNEL); | |
3033 | } | |
3034 | ||
3035 | static inline void free_secdata(void *secdata) | |
3036 | { | |
3037 | free_page((unsigned long)secdata); | |
3038 | } | |
3039 | ||
3040 | #else | |
3041 | ||
3042 | static inline char *alloc_secdata(void) | |
3043 | { | |
3044 | return (char *)1; | |
3045 | } | |
3046 | ||
3047 | static inline void free_secdata(void *secdata) | |
3048 | { } | |
3049 | #endif /* CONFIG_SECURITY */ | |
3050 | ||
1da177e4 LT |
3051 | #endif /* ! __LINUX_SECURITY_H */ |
3052 |