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1da177e4 LT |
1 | /* |
2 | * Linux Security plug | |
3 | * | |
4 | * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> | |
5 | * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com> | |
6 | * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> | |
7 | * Copyright (C) 2001 James Morris <jmorris@intercode.com.au> | |
8 | * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group) | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * Due to this file being licensed under the GPL there is controversy over | |
16 | * whether this permits you to write a module that #includes this file | |
17 | * without placing your module under the GPL. Please consult a lawyer for | |
18 | * advice before doing this. | |
19 | * | |
20 | */ | |
21 | ||
22 | #ifndef __LINUX_SECURITY_H | |
23 | #define __LINUX_SECURITY_H | |
24 | ||
25 | #include <linux/fs.h> | |
26 | #include <linux/binfmts.h> | |
27 | #include <linux/signal.h> | |
28 | #include <linux/resource.h> | |
29 | #include <linux/sem.h> | |
30 | #include <linux/shm.h> | |
a2551df7 | 31 | #include <linux/mm.h> /* PAGE_ALIGN */ |
1da177e4 LT |
32 | #include <linux/msg.h> |
33 | #include <linux/sched.h> | |
29db9190 | 34 | #include <linux/key.h> |
e0d1caa7 | 35 | #include <linux/xfrm.h> |
3d544f41 | 36 | #include <linux/gfp.h> |
beb8d13b | 37 | #include <net/flow.h> |
1da177e4 | 38 | |
076c54c5 AD |
39 | /* Maximum number of letters for an LSM name string */ |
40 | #define SECURITY_NAME_MAX 10 | |
41 | ||
06112163 EP |
42 | /* If capable should audit the security request */ |
43 | #define SECURITY_CAP_NOAUDIT 0 | |
44 | #define SECURITY_CAP_AUDIT 1 | |
45 | ||
1da177e4 | 46 | struct ctl_table; |
03d37d25 | 47 | struct audit_krule; |
1da177e4 LT |
48 | |
49 | /* | |
50 | * These functions are in security/capability.c and are used | |
51 | * as the default capabilities functions | |
52 | */ | |
3699c53c DH |
53 | extern int cap_capable(struct task_struct *tsk, const struct cred *cred, |
54 | int cap, int audit); | |
7b41b173 | 55 | extern int cap_settime(struct timespec *ts, struct timezone *tz); |
9e48858f | 56 | extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 57 | extern int cap_ptrace_traceme(struct task_struct *parent); |
7b41b173 | 58 | extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); |
d84f4f99 DH |
59 | extern int cap_capset(struct cred *new, const struct cred *old, |
60 | const kernel_cap_t *effective, | |
61 | const kernel_cap_t *inheritable, | |
62 | const kernel_cap_t *permitted); | |
a6f76f23 | 63 | extern int cap_bprm_set_creds(struct linux_binprm *bprm); |
1da177e4 | 64 | extern int cap_bprm_secureexec(struct linux_binprm *bprm); |
8f0cfa52 DH |
65 | extern int cap_inode_setxattr(struct dentry *dentry, const char *name, |
66 | const void *value, size_t size, int flags); | |
67 | extern int cap_inode_removexattr(struct dentry *dentry, const char *name); | |
b5376771 SH |
68 | extern int cap_inode_need_killpriv(struct dentry *dentry); |
69 | extern int cap_inode_killpriv(struct dentry *dentry); | |
7c73875e EP |
70 | extern int cap_file_mmap(struct file *file, unsigned long reqprot, |
71 | unsigned long prot, unsigned long flags, | |
72 | unsigned long addr, unsigned long addr_only); | |
d84f4f99 | 73 | extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); |
3898b1b4 | 74 | extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 75 | unsigned long arg4, unsigned long arg5); |
7b41b173 EP |
76 | extern int cap_task_setscheduler(struct task_struct *p, int policy, struct sched_param *lp); |
77 | extern int cap_task_setioprio(struct task_struct *p, int ioprio); | |
78 | extern int cap_task_setnice(struct task_struct *p, int nice); | |
79 | extern int cap_syslog(int type); | |
20510f2f | 80 | extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); |
1da177e4 LT |
81 | |
82 | struct msghdr; | |
83 | struct sk_buff; | |
84 | struct sock; | |
85 | struct sockaddr; | |
86 | struct socket; | |
df71837d TJ |
87 | struct flowi; |
88 | struct dst_entry; | |
89 | struct xfrm_selector; | |
90 | struct xfrm_policy; | |
91 | struct xfrm_state; | |
92 | struct xfrm_user_sec_ctx; | |
2069f457 | 93 | struct seq_file; |
1da177e4 LT |
94 | |
95 | extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb); | |
c7bdb545 | 96 | extern int cap_netlink_recv(struct sk_buff *skb, int cap); |
1da177e4 | 97 | |
6e141546 | 98 | #ifdef CONFIG_MMU |
ed032189 | 99 | extern unsigned long mmap_min_addr; |
a2551df7 | 100 | extern unsigned long dac_mmap_min_addr; |
6e141546 DH |
101 | #else |
102 | #define dac_mmap_min_addr 0UL | |
103 | #endif | |
104 | ||
1da177e4 LT |
105 | /* |
106 | * Values used in the task_security_ops calls | |
107 | */ | |
108 | /* setuid or setgid, id0 == uid or gid */ | |
109 | #define LSM_SETID_ID 1 | |
110 | ||
111 | /* setreuid or setregid, id0 == real, id1 == eff */ | |
112 | #define LSM_SETID_RE 2 | |
113 | ||
114 | /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ | |
115 | #define LSM_SETID_RES 4 | |
116 | ||
117 | /* setfsuid or setfsgid, id0 == fsuid or fsgid */ | |
118 | #define LSM_SETID_FS 8 | |
119 | ||
120 | /* forward declares to avoid warnings */ | |
1da177e4 | 121 | struct sched_param; |
4237c75c | 122 | struct request_sock; |
1da177e4 | 123 | |
a6f76f23 | 124 | /* bprm->unsafe reasons */ |
1da177e4 LT |
125 | #define LSM_UNSAFE_SHARE 1 |
126 | #define LSM_UNSAFE_PTRACE 2 | |
127 | #define LSM_UNSAFE_PTRACE_CAP 4 | |
128 | ||
6e141546 | 129 | #ifdef CONFIG_MMU |
47d439e9 EP |
130 | /* |
131 | * If a hint addr is less than mmap_min_addr change hint to be as | |
132 | * low as possible but still greater than mmap_min_addr | |
133 | */ | |
134 | static inline unsigned long round_hint_to_min(unsigned long hint) | |
135 | { | |
136 | hint &= PAGE_MASK; | |
137 | if (((void *)hint != NULL) && | |
138 | (hint < mmap_min_addr)) | |
139 | return PAGE_ALIGN(mmap_min_addr); | |
140 | return hint; | |
141 | } | |
8d65af78 | 142 | extern int mmap_min_addr_handler(struct ctl_table *table, int write, |
47d439e9 | 143 | void __user *buffer, size_t *lenp, loff_t *ppos); |
6e141546 | 144 | #endif |
47d439e9 | 145 | |
1da177e4 LT |
146 | #ifdef CONFIG_SECURITY |
147 | ||
e0007529 EP |
148 | struct security_mnt_opts { |
149 | char **mnt_opts; | |
150 | int *mnt_opts_flags; | |
151 | int num_mnt_opts; | |
152 | }; | |
153 | ||
154 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
155 | { | |
156 | opts->mnt_opts = NULL; | |
157 | opts->mnt_opts_flags = NULL; | |
158 | opts->num_mnt_opts = 0; | |
159 | } | |
160 | ||
161 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
162 | { | |
163 | int i; | |
164 | if (opts->mnt_opts) | |
7b41b173 | 165 | for (i = 0; i < opts->num_mnt_opts; i++) |
e0007529 EP |
166 | kfree(opts->mnt_opts[i]); |
167 | kfree(opts->mnt_opts); | |
168 | opts->mnt_opts = NULL; | |
169 | kfree(opts->mnt_opts_flags); | |
170 | opts->mnt_opts_flags = NULL; | |
171 | opts->num_mnt_opts = 0; | |
172 | } | |
173 | ||
1da177e4 LT |
174 | /** |
175 | * struct security_operations - main security structure | |
176 | * | |
076c54c5 AD |
177 | * Security module identifier. |
178 | * | |
179 | * @name: | |
180 | * A string that acts as a unique identifeir for the LSM with max number | |
181 | * of characters = SECURITY_NAME_MAX. | |
182 | * | |
1da177e4 LT |
183 | * Security hooks for program execution operations. |
184 | * | |
a6f76f23 | 185 | * @bprm_set_creds: |
1da177e4 LT |
186 | * Save security information in the bprm->security field, typically based |
187 | * on information about the bprm->file, for later use by the apply_creds | |
188 | * hook. This hook may also optionally check permissions (e.g. for | |
189 | * transitions between security domains). | |
190 | * This hook may be called multiple times during a single execve, e.g. for | |
191 | * interpreters. The hook can tell whether it has already been called by | |
192 | * checking to see if @bprm->security is non-NULL. If so, then the hook | |
193 | * may decide either to retain the security information saved earlier or | |
194 | * to replace it. | |
195 | * @bprm contains the linux_binprm structure. | |
196 | * Return 0 if the hook is successful and permission is granted. | |
197 | * @bprm_check_security: | |
a6f76f23 DH |
198 | * This hook mediates the point when a search for a binary handler will |
199 | * begin. It allows a check the @bprm->security value which is set in the | |
200 | * preceding set_creds call. The primary difference from set_creds is | |
201 | * that the argv list and envp list are reliably available in @bprm. This | |
202 | * hook may be called multiple times during a single execve; and in each | |
203 | * pass set_creds is called first. | |
7b41b173 | 204 | * @bprm contains the linux_binprm structure. |
1da177e4 | 205 | * Return 0 if the hook is successful and permission is granted. |
a6f76f23 DH |
206 | * @bprm_committing_creds: |
207 | * Prepare to install the new security attributes of a process being | |
208 | * transformed by an execve operation, based on the old credentials | |
209 | * pointed to by @current->cred and the information set in @bprm->cred by | |
210 | * the bprm_set_creds hook. @bprm points to the linux_binprm structure. | |
211 | * This hook is a good place to perform state changes on the process such | |
212 | * as closing open file descriptors to which access will no longer be | |
213 | * granted when the attributes are changed. This is called immediately | |
214 | * before commit_creds(). | |
215 | * @bprm_committed_creds: | |
216 | * Tidy up after the installation of the new security attributes of a | |
217 | * process being transformed by an execve operation. The new credentials | |
218 | * have, by this point, been set to @current->cred. @bprm points to the | |
219 | * linux_binprm structure. This hook is a good place to perform state | |
220 | * changes on the process such as clearing out non-inheritable signal | |
221 | * state. This is called immediately after commit_creds(). | |
1da177e4 | 222 | * @bprm_secureexec: |
7b41b173 EP |
223 | * Return a boolean value (0 or 1) indicating whether a "secure exec" |
224 | * is required. The flag is passed in the auxiliary table | |
225 | * on the initial stack to the ELF interpreter to indicate whether libc | |
226 | * should enable secure mode. | |
227 | * @bprm contains the linux_binprm structure. | |
1da177e4 LT |
228 | * |
229 | * Security hooks for filesystem operations. | |
230 | * | |
231 | * @sb_alloc_security: | |
232 | * Allocate and attach a security structure to the sb->s_security field. | |
233 | * The s_security field is initialized to NULL when the structure is | |
234 | * allocated. | |
235 | * @sb contains the super_block structure to be modified. | |
236 | * Return 0 if operation was successful. | |
237 | * @sb_free_security: | |
238 | * Deallocate and clear the sb->s_security field. | |
239 | * @sb contains the super_block structure to be modified. | |
240 | * @sb_statfs: | |
726c3342 DH |
241 | * Check permission before obtaining filesystem statistics for the @mnt |
242 | * mountpoint. | |
243 | * @dentry is a handle on the superblock for the filesystem. | |
7b41b173 | 244 | * Return 0 if permission is granted. |
1da177e4 LT |
245 | * @sb_mount: |
246 | * Check permission before an object specified by @dev_name is mounted on | |
247 | * the mount point named by @nd. For an ordinary mount, @dev_name | |
248 | * identifies a device if the file system type requires a device. For a | |
249 | * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a | |
250 | * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the | |
251 | * pathname of the object being mounted. | |
252 | * @dev_name contains the name for object being mounted. | |
b5266eb4 | 253 | * @path contains the path for mount point object. |
1da177e4 LT |
254 | * @type contains the filesystem type. |
255 | * @flags contains the mount flags. | |
256 | * @data contains the filesystem-specific data. | |
257 | * Return 0 if permission is granted. | |
258 | * @sb_copy_data: | |
259 | * Allow mount option data to be copied prior to parsing by the filesystem, | |
260 | * so that the security module can extract security-specific mount | |
261 | * options cleanly (a filesystem may modify the data e.g. with strsep()). | |
262 | * This also allows the original mount data to be stripped of security- | |
263 | * specific options to avoid having to make filesystems aware of them. | |
264 | * @type the type of filesystem being mounted. | |
265 | * @orig the original mount data copied from userspace. | |
266 | * @copy copied data which will be passed to the security module. | |
267 | * Returns 0 if the copy was successful. | |
268 | * @sb_check_sb: | |
269 | * Check permission before the device with superblock @mnt->sb is mounted | |
270 | * on the mount point named by @nd. | |
271 | * @mnt contains the vfsmount for device being mounted. | |
b5266eb4 | 272 | * @path contains the path for the mount point. |
1da177e4 LT |
273 | * Return 0 if permission is granted. |
274 | * @sb_umount: | |
275 | * Check permission before the @mnt file system is unmounted. | |
276 | * @mnt contains the mounted file system. | |
277 | * @flags contains the unmount flags, e.g. MNT_FORCE. | |
278 | * Return 0 if permission is granted. | |
279 | * @sb_umount_close: | |
280 | * Close any files in the @mnt mounted filesystem that are held open by | |
281 | * the security module. This hook is called during an umount operation | |
282 | * prior to checking whether the filesystem is still busy. | |
283 | * @mnt contains the mounted filesystem. | |
284 | * @sb_umount_busy: | |
285 | * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening | |
286 | * any files that were closed by umount_close. This hook is called during | |
287 | * an umount operation if the umount fails after a call to the | |
288 | * umount_close hook. | |
289 | * @mnt contains the mounted filesystem. | |
290 | * @sb_post_remount: | |
291 | * Update the security module's state when a filesystem is remounted. | |
292 | * This hook is only called if the remount was successful. | |
293 | * @mnt contains the mounted file system. | |
294 | * @flags contains the new filesystem flags. | |
295 | * @data contains the filesystem-specific data. | |
1da177e4 LT |
296 | * @sb_post_addmount: |
297 | * Update the security module's state when a filesystem is mounted. | |
298 | * This hook is called any time a mount is successfully grafetd to | |
299 | * the tree. | |
300 | * @mnt contains the mounted filesystem. | |
b5266eb4 | 301 | * @mountpoint contains the path for the mount point. |
1da177e4 LT |
302 | * @sb_pivotroot: |
303 | * Check permission before pivoting the root filesystem. | |
b5266eb4 | 304 | * @old_path contains the path for the new location of the current root (put_old). |
7b41b173 | 305 | * @new_path contains the path for the new root (new_root). |
1da177e4 LT |
306 | * Return 0 if permission is granted. |
307 | * @sb_post_pivotroot: | |
308 | * Update module state after a successful pivot. | |
b5266eb4 | 309 | * @old_path contains the path for the old root. |
7b41b173 | 310 | * @new_path contains the path for the new root. |
c9180a57 EP |
311 | * @sb_set_mnt_opts: |
312 | * Set the security relevant mount options used for a superblock | |
313 | * @sb the superblock to set security mount options for | |
e0007529 | 314 | * @opts binary data structure containing all lsm mount data |
c9180a57 EP |
315 | * @sb_clone_mnt_opts: |
316 | * Copy all security options from a given superblock to another | |
317 | * @oldsb old superblock which contain information to clone | |
318 | * @newsb new superblock which needs filled in | |
e0007529 EP |
319 | * @sb_parse_opts_str: |
320 | * Parse a string of security data filling in the opts structure | |
321 | * @options string containing all mount options known by the LSM | |
322 | * @opts binary data structure usable by the LSM | |
1da177e4 LT |
323 | * |
324 | * Security hooks for inode operations. | |
325 | * | |
326 | * @inode_alloc_security: | |
327 | * Allocate and attach a security structure to @inode->i_security. The | |
328 | * i_security field is initialized to NULL when the inode structure is | |
329 | * allocated. | |
330 | * @inode contains the inode structure. | |
331 | * Return 0 if operation was successful. | |
332 | * @inode_free_security: | |
333 | * @inode contains the inode structure. | |
334 | * Deallocate the inode security structure and set @inode->i_security to | |
7b41b173 | 335 | * NULL. |
5e41ff9e | 336 | * @inode_init_security: |
7b41b173 | 337 | * Obtain the security attribute name suffix and value to set on a newly |
5e41ff9e SS |
338 | * created inode and set up the incore security field for the new inode. |
339 | * This hook is called by the fs code as part of the inode creation | |
340 | * transaction and provides for atomic labeling of the inode, unlike | |
341 | * the post_create/mkdir/... hooks called by the VFS. The hook function | |
342 | * is expected to allocate the name and value via kmalloc, with the caller | |
343 | * being responsible for calling kfree after using them. | |
344 | * If the security module does not use security attributes or does | |
345 | * not wish to put a security attribute on this particular inode, | |
346 | * then it should return -EOPNOTSUPP to skip this processing. | |
347 | * @inode contains the inode structure of the newly created inode. | |
348 | * @dir contains the inode structure of the parent directory. | |
349 | * @name will be set to the allocated name suffix (e.g. selinux). | |
350 | * @value will be set to the allocated attribute value. | |
351 | * @len will be set to the length of the value. | |
352 | * Returns 0 if @name and @value have been successfully set, | |
353 | * -EOPNOTSUPP if no security attribute is needed, or | |
354 | * -ENOMEM on memory allocation failure. | |
1da177e4 LT |
355 | * @inode_create: |
356 | * Check permission to create a regular file. | |
357 | * @dir contains inode structure of the parent of the new file. | |
358 | * @dentry contains the dentry structure for the file to be created. | |
359 | * @mode contains the file mode of the file to be created. | |
360 | * Return 0 if permission is granted. | |
1da177e4 LT |
361 | * @inode_link: |
362 | * Check permission before creating a new hard link to a file. | |
363 | * @old_dentry contains the dentry structure for an existing link to the file. | |
364 | * @dir contains the inode structure of the parent directory of the new link. | |
365 | * @new_dentry contains the dentry structure for the new link. | |
366 | * Return 0 if permission is granted. | |
be6d3e56 KT |
367 | * @path_link: |
368 | * Check permission before creating a new hard link to a file. | |
369 | * @old_dentry contains the dentry structure for an existing link | |
370 | * to the file. | |
371 | * @new_dir contains the path structure of the parent directory of | |
372 | * the new link. | |
373 | * @new_dentry contains the dentry structure for the new link. | |
374 | * Return 0 if permission is granted. | |
1da177e4 | 375 | * @inode_unlink: |
7b41b173 | 376 | * Check the permission to remove a hard link to a file. |
1da177e4 LT |
377 | * @dir contains the inode structure of parent directory of the file. |
378 | * @dentry contains the dentry structure for file to be unlinked. | |
379 | * Return 0 if permission is granted. | |
be6d3e56 KT |
380 | * @path_unlink: |
381 | * Check the permission to remove a hard link to a file. | |
382 | * @dir contains the path structure of parent directory of the file. | |
383 | * @dentry contains the dentry structure for file to be unlinked. | |
384 | * Return 0 if permission is granted. | |
1da177e4 LT |
385 | * @inode_symlink: |
386 | * Check the permission to create a symbolic link to a file. | |
387 | * @dir contains the inode structure of parent directory of the symbolic link. | |
388 | * @dentry contains the dentry structure of the symbolic link. | |
389 | * @old_name contains the pathname of file. | |
390 | * Return 0 if permission is granted. | |
be6d3e56 KT |
391 | * @path_symlink: |
392 | * Check the permission to create a symbolic link to a file. | |
393 | * @dir contains the path structure of parent directory of | |
394 | * the symbolic link. | |
395 | * @dentry contains the dentry structure of the symbolic link. | |
396 | * @old_name contains the pathname of file. | |
397 | * Return 0 if permission is granted. | |
1da177e4 LT |
398 | * @inode_mkdir: |
399 | * Check permissions to create a new directory in the existing directory | |
7b41b173 | 400 | * associated with inode strcture @dir. |
1da177e4 LT |
401 | * @dir containst the inode structure of parent of the directory to be created. |
402 | * @dentry contains the dentry structure of new directory. | |
403 | * @mode contains the mode of new directory. | |
404 | * Return 0 if permission is granted. | |
be6d3e56 KT |
405 | * @path_mkdir: |
406 | * Check permissions to create a new directory in the existing directory | |
407 | * associated with path strcture @path. | |
408 | * @dir containst the path structure of parent of the directory | |
409 | * to be created. | |
410 | * @dentry contains the dentry structure of new directory. | |
411 | * @mode contains the mode of new directory. | |
412 | * Return 0 if permission is granted. | |
1da177e4 LT |
413 | * @inode_rmdir: |
414 | * Check the permission to remove a directory. | |
415 | * @dir contains the inode structure of parent of the directory to be removed. | |
416 | * @dentry contains the dentry structure of directory to be removed. | |
417 | * Return 0 if permission is granted. | |
be6d3e56 KT |
418 | * @path_rmdir: |
419 | * Check the permission to remove a directory. | |
420 | * @dir contains the path structure of parent of the directory to be | |
421 | * removed. | |
422 | * @dentry contains the dentry structure of directory to be removed. | |
423 | * Return 0 if permission is granted. | |
1da177e4 LT |
424 | * @inode_mknod: |
425 | * Check permissions when creating a special file (or a socket or a fifo | |
426 | * file created via the mknod system call). Note that if mknod operation | |
427 | * is being done for a regular file, then the create hook will be called | |
428 | * and not this hook. | |
429 | * @dir contains the inode structure of parent of the new file. | |
430 | * @dentry contains the dentry structure of the new file. | |
431 | * @mode contains the mode of the new file. | |
59c51591 | 432 | * @dev contains the device number. |
1da177e4 | 433 | * Return 0 if permission is granted. |
be6d3e56 KT |
434 | * @path_mknod: |
435 | * Check permissions when creating a file. Note that this hook is called | |
436 | * even if mknod operation is being done for a regular file. | |
437 | * @dir contains the path structure of parent of the new file. | |
438 | * @dentry contains the dentry structure of the new file. | |
439 | * @mode contains the mode of the new file. | |
440 | * @dev contains the undecoded device number. Use new_decode_dev() to get | |
441 | * the decoded device number. | |
442 | * Return 0 if permission is granted. | |
1da177e4 LT |
443 | * @inode_rename: |
444 | * Check for permission to rename a file or directory. | |
445 | * @old_dir contains the inode structure for parent of the old link. | |
446 | * @old_dentry contains the dentry structure of the old link. | |
447 | * @new_dir contains the inode structure for parent of the new link. | |
448 | * @new_dentry contains the dentry structure of the new link. | |
449 | * Return 0 if permission is granted. | |
be6d3e56 KT |
450 | * @path_rename: |
451 | * Check for permission to rename a file or directory. | |
452 | * @old_dir contains the path structure for parent of the old link. | |
453 | * @old_dentry contains the dentry structure of the old link. | |
454 | * @new_dir contains the path structure for parent of the new link. | |
455 | * @new_dentry contains the dentry structure of the new link. | |
456 | * Return 0 if permission is granted. | |
89eda068 TH |
457 | * @path_chmod: |
458 | * Check for permission to change DAC's permission of a file or directory. | |
459 | * @dentry contains the dentry structure. | |
460 | * @mnt contains the vfsmnt structure. | |
461 | * @mode contains DAC's mode. | |
462 | * Return 0 if permission is granted. | |
463 | * @path_chown: | |
464 | * Check for permission to change owner/group of a file or directory. | |
465 | * @path contains the path structure. | |
466 | * @uid contains new owner's ID. | |
467 | * @gid contains new group's ID. | |
468 | * Return 0 if permission is granted. | |
8b8efb44 TH |
469 | * @path_chroot: |
470 | * Check for permission to change root directory. | |
471 | * @path contains the path structure. | |
472 | * Return 0 if permission is granted. | |
1da177e4 LT |
473 | * @inode_readlink: |
474 | * Check the permission to read the symbolic link. | |
475 | * @dentry contains the dentry structure for the file link. | |
476 | * Return 0 if permission is granted. | |
477 | * @inode_follow_link: | |
478 | * Check permission to follow a symbolic link when looking up a pathname. | |
479 | * @dentry contains the dentry structure for the link. | |
480 | * @nd contains the nameidata structure for the parent directory. | |
481 | * Return 0 if permission is granted. | |
482 | * @inode_permission: | |
483 | * Check permission before accessing an inode. This hook is called by the | |
484 | * existing Linux permission function, so a security module can use it to | |
485 | * provide additional checking for existing Linux permission checks. | |
486 | * Notice that this hook is called when a file is opened (as well as many | |
487 | * other operations), whereas the file_security_ops permission hook is | |
488 | * called when the actual read/write operations are performed. | |
489 | * @inode contains the inode structure to check. | |
490 | * @mask contains the permission mask. | |
7b41b173 | 491 | * @nd contains the nameidata (may be NULL). |
1da177e4 LT |
492 | * Return 0 if permission is granted. |
493 | * @inode_setattr: | |
494 | * Check permission before setting file attributes. Note that the kernel | |
495 | * call to notify_change is performed from several locations, whenever | |
496 | * file attributes change (such as when a file is truncated, chown/chmod | |
497 | * operations, transferring disk quotas, etc). | |
498 | * @dentry contains the dentry structure for the file. | |
499 | * @attr is the iattr structure containing the new file attributes. | |
500 | * Return 0 if permission is granted. | |
be6d3e56 KT |
501 | * @path_truncate: |
502 | * Check permission before truncating a file. | |
503 | * @path contains the path structure for the file. | |
504 | * @length is the new length of the file. | |
505 | * @time_attrs is the flags passed to do_truncate(). | |
506 | * Return 0 if permission is granted. | |
1da177e4 LT |
507 | * @inode_getattr: |
508 | * Check permission before obtaining file attributes. | |
509 | * @mnt is the vfsmount where the dentry was looked up | |
510 | * @dentry contains the dentry structure for the file. | |
511 | * Return 0 if permission is granted. | |
512 | * @inode_delete: | |
513 | * @inode contains the inode structure for deleted inode. | |
514 | * This hook is called when a deleted inode is released (i.e. an inode | |
515 | * with no hard links has its use count drop to zero). A security module | |
516 | * can use this hook to release any persistent label associated with the | |
517 | * inode. | |
518 | * @inode_setxattr: | |
7b41b173 EP |
519 | * Check permission before setting the extended attributes |
520 | * @value identified by @name for @dentry. | |
521 | * Return 0 if permission is granted. | |
1da177e4 | 522 | * @inode_post_setxattr: |
7b41b173 EP |
523 | * Update inode security field after successful setxattr operation. |
524 | * @value identified by @name for @dentry. | |
1da177e4 | 525 | * @inode_getxattr: |
7b41b173 EP |
526 | * Check permission before obtaining the extended attributes |
527 | * identified by @name for @dentry. | |
528 | * Return 0 if permission is granted. | |
1da177e4 | 529 | * @inode_listxattr: |
7b41b173 EP |
530 | * Check permission before obtaining the list of extended attribute |
531 | * names for @dentry. | |
532 | * Return 0 if permission is granted. | |
1da177e4 | 533 | * @inode_removexattr: |
7b41b173 EP |
534 | * Check permission before removing the extended attribute |
535 | * identified by @name for @dentry. | |
536 | * Return 0 if permission is granted. | |
1da177e4 | 537 | * @inode_getsecurity: |
42492594 DQ |
538 | * Retrieve a copy of the extended attribute representation of the |
539 | * security label associated with @name for @inode via @buffer. Note that | |
540 | * @name is the remainder of the attribute name after the security prefix | |
541 | * has been removed. @alloc is used to specify of the call should return a | |
542 | * value via the buffer or just the value length Return size of buffer on | |
543 | * success. | |
1da177e4 LT |
544 | * @inode_setsecurity: |
545 | * Set the security label associated with @name for @inode from the | |
546 | * extended attribute value @value. @size indicates the size of the | |
547 | * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0. | |
7b41b173 | 548 | * Note that @name is the remainder of the attribute name after the |
1da177e4 LT |
549 | * security. prefix has been removed. |
550 | * Return 0 on success. | |
551 | * @inode_listsecurity: | |
552 | * Copy the extended attribute names for the security labels | |
553 | * associated with @inode into @buffer. The maximum size of @buffer | |
554 | * is specified by @buffer_size. @buffer may be NULL to request | |
555 | * the size of the buffer required. | |
556 | * Returns number of bytes used/required on success. | |
b5376771 SH |
557 | * @inode_need_killpriv: |
558 | * Called when an inode has been changed. | |
559 | * @dentry is the dentry being changed. | |
560 | * Return <0 on error to abort the inode change operation. | |
561 | * Return 0 if inode_killpriv does not need to be called. | |
562 | * Return >0 if inode_killpriv does need to be called. | |
563 | * @inode_killpriv: | |
564 | * The setuid bit is being removed. Remove similar security labels. | |
565 | * Called with the dentry->d_inode->i_mutex held. | |
566 | * @dentry is the dentry being changed. | |
567 | * Return 0 on success. If error is returned, then the operation | |
568 | * causing setuid bit removal is failed. | |
8a076191 AD |
569 | * @inode_getsecid: |
570 | * Get the secid associated with the node. | |
571 | * @inode contains a pointer to the inode. | |
572 | * @secid contains a pointer to the location where result will be saved. | |
573 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
574 | * |
575 | * Security hooks for file operations | |
576 | * | |
577 | * @file_permission: | |
578 | * Check file permissions before accessing an open file. This hook is | |
579 | * called by various operations that read or write files. A security | |
580 | * module can use this hook to perform additional checking on these | |
581 | * operations, e.g. to revalidate permissions on use to support privilege | |
582 | * bracketing or policy changes. Notice that this hook is used when the | |
583 | * actual read/write operations are performed, whereas the | |
584 | * inode_security_ops hook is called when a file is opened (as well as | |
585 | * many other operations). | |
586 | * Caveat: Although this hook can be used to revalidate permissions for | |
587 | * various system call operations that read or write files, it does not | |
588 | * address the revalidation of permissions for memory-mapped files. | |
589 | * Security modules must handle this separately if they need such | |
590 | * revalidation. | |
591 | * @file contains the file structure being accessed. | |
592 | * @mask contains the requested permissions. | |
593 | * Return 0 if permission is granted. | |
594 | * @file_alloc_security: | |
595 | * Allocate and attach a security structure to the file->f_security field. | |
596 | * The security field is initialized to NULL when the structure is first | |
597 | * created. | |
598 | * @file contains the file structure to secure. | |
599 | * Return 0 if the hook is successful and permission is granted. | |
600 | * @file_free_security: | |
601 | * Deallocate and free any security structures stored in file->f_security. | |
602 | * @file contains the file structure being modified. | |
603 | * @file_ioctl: | |
604 | * @file contains the file structure. | |
605 | * @cmd contains the operation to perform. | |
606 | * @arg contains the operational arguments. | |
607 | * Check permission for an ioctl operation on @file. Note that @arg can | |
608 | * sometimes represents a user space pointer; in other cases, it may be a | |
609 | * simple integer value. When @arg represents a user space pointer, it | |
610 | * should never be used by the security module. | |
611 | * Return 0 if permission is granted. | |
612 | * @file_mmap : | |
613 | * Check permissions for a mmap operation. The @file may be NULL, e.g. | |
614 | * if mapping anonymous memory. | |
615 | * @file contains the file structure for file to map (may be NULL). | |
616 | * @reqprot contains the protection requested by the application. | |
617 | * @prot contains the protection that will be applied by the kernel. | |
618 | * @flags contains the operational flags. | |
619 | * Return 0 if permission is granted. | |
620 | * @file_mprotect: | |
621 | * Check permissions before changing memory access permissions. | |
622 | * @vma contains the memory region to modify. | |
623 | * @reqprot contains the protection requested by the application. | |
624 | * @prot contains the protection that will be applied by the kernel. | |
625 | * Return 0 if permission is granted. | |
626 | * @file_lock: | |
627 | * Check permission before performing file locking operations. | |
628 | * Note: this hook mediates both flock and fcntl style locks. | |
629 | * @file contains the file structure. | |
630 | * @cmd contains the posix-translated lock operation to perform | |
631 | * (e.g. F_RDLCK, F_WRLCK). | |
632 | * Return 0 if permission is granted. | |
633 | * @file_fcntl: | |
634 | * Check permission before allowing the file operation specified by @cmd | |
635 | * from being performed on the file @file. Note that @arg can sometimes | |
636 | * represents a user space pointer; in other cases, it may be a simple | |
637 | * integer value. When @arg represents a user space pointer, it should | |
638 | * never be used by the security module. | |
639 | * @file contains the file structure. | |
640 | * @cmd contains the operation to be performed. | |
641 | * @arg contains the operational arguments. | |
642 | * Return 0 if permission is granted. | |
643 | * @file_set_fowner: | |
644 | * Save owner security information (typically from current->security) in | |
645 | * file->f_security for later use by the send_sigiotask hook. | |
646 | * @file contains the file structure to update. | |
647 | * Return 0 on success. | |
648 | * @file_send_sigiotask: | |
649 | * Check permission for the file owner @fown to send SIGIO or SIGURG to the | |
650 | * process @tsk. Note that this hook is sometimes called from interrupt. | |
651 | * Note that the fown_struct, @fown, is never outside the context of a | |
652 | * struct file, so the file structure (and associated security information) | |
653 | * can always be obtained: | |
b385a144 | 654 | * container_of(fown, struct file, f_owner) |
7b41b173 | 655 | * @tsk contains the structure of task receiving signal. |
1da177e4 LT |
656 | * @fown contains the file owner information. |
657 | * @sig is the signal that will be sent. When 0, kernel sends SIGIO. | |
658 | * Return 0 if permission is granted. | |
659 | * @file_receive: | |
660 | * This hook allows security modules to control the ability of a process | |
661 | * to receive an open file descriptor via socket IPC. | |
662 | * @file contains the file structure being received. | |
663 | * Return 0 if permission is granted. | |
664 | * | |
788e7dd4 YN |
665 | * Security hook for dentry |
666 | * | |
667 | * @dentry_open | |
668 | * Save open-time permission checking state for later use upon | |
669 | * file_permission, and recheck access if anything has changed | |
670 | * since inode_permission. | |
671 | * | |
1da177e4 LT |
672 | * Security hooks for task operations. |
673 | * | |
674 | * @task_create: | |
675 | * Check permission before creating a child process. See the clone(2) | |
676 | * manual page for definitions of the @clone_flags. | |
677 | * @clone_flags contains the flags indicating what should be shared. | |
678 | * Return 0 if permission is granted. | |
ee18d64c DH |
679 | * @cred_alloc_blank: |
680 | * @cred points to the credentials. | |
681 | * @gfp indicates the atomicity of any memory allocations. | |
682 | * Only allocate sufficient memory and attach to @cred such that | |
683 | * cred_transfer() will not get ENOMEM. | |
f1752eec DH |
684 | * @cred_free: |
685 | * @cred points to the credentials. | |
686 | * Deallocate and clear the cred->security field in a set of credentials. | |
d84f4f99 DH |
687 | * @cred_prepare: |
688 | * @new points to the new credentials. | |
689 | * @old points to the original credentials. | |
690 | * @gfp indicates the atomicity of any memory allocations. | |
691 | * Prepare a new set of credentials by copying the data from the old set. | |
692 | * @cred_commit: | |
693 | * @new points to the new credentials. | |
694 | * @old points to the original credentials. | |
695 | * Install a new set of credentials. | |
ee18d64c DH |
696 | * @cred_transfer: |
697 | * @new points to the new credentials. | |
698 | * @old points to the original credentials. | |
699 | * Transfer data from original creds to new creds | |
3a3b7ce9 DH |
700 | * @kernel_act_as: |
701 | * Set the credentials for a kernel service to act as (subjective context). | |
702 | * @new points to the credentials to be modified. | |
703 | * @secid specifies the security ID to be set | |
704 | * The current task must be the one that nominated @secid. | |
705 | * Return 0 if successful. | |
706 | * @kernel_create_files_as: | |
707 | * Set the file creation context in a set of credentials to be the same as | |
708 | * the objective context of the specified inode. | |
709 | * @new points to the credentials to be modified. | |
710 | * @inode points to the inode to use as a reference. | |
711 | * The current task must be the one that nominated @inode. | |
712 | * Return 0 if successful. | |
9188499c EP |
713 | * @kernel_module_request: |
714 | * Ability to trigger the kernel to automatically upcall to userspace for | |
715 | * userspace to load a kernel module with the given name. | |
dd8dbf2e | 716 | * @kmod_name name of the module requested by the kernel |
f322abf8 | 717 | * Return 0 if successful. |
1da177e4 LT |
718 | * @task_setuid: |
719 | * Check permission before setting one or more of the user identity | |
720 | * attributes of the current process. The @flags parameter indicates | |
721 | * which of the set*uid system calls invoked this hook and how to | |
722 | * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID | |
723 | * definitions at the beginning of this file for the @flags values and | |
724 | * their meanings. | |
725 | * @id0 contains a uid. | |
726 | * @id1 contains a uid. | |
727 | * @id2 contains a uid. | |
728 | * @flags contains one of the LSM_SETID_* values. | |
729 | * Return 0 if permission is granted. | |
d84f4f99 | 730 | * @task_fix_setuid: |
1da177e4 LT |
731 | * Update the module's state after setting one or more of the user |
732 | * identity attributes of the current process. The @flags parameter | |
733 | * indicates which of the set*uid system calls invoked this hook. If | |
d84f4f99 DH |
734 | * @new is the set of credentials that will be installed. Modifications |
735 | * should be made to this rather than to @current->cred. | |
736 | * @old is the set of credentials that are being replaces | |
1da177e4 LT |
737 | * @flags contains one of the LSM_SETID_* values. |
738 | * Return 0 on success. | |
739 | * @task_setgid: | |
740 | * Check permission before setting one or more of the group identity | |
741 | * attributes of the current process. The @flags parameter indicates | |
742 | * which of the set*gid system calls invoked this hook and how to | |
743 | * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID | |
744 | * definitions at the beginning of this file for the @flags values and | |
745 | * their meanings. | |
746 | * @id0 contains a gid. | |
747 | * @id1 contains a gid. | |
748 | * @id2 contains a gid. | |
749 | * @flags contains one of the LSM_SETID_* values. | |
750 | * Return 0 if permission is granted. | |
751 | * @task_setpgid: | |
752 | * Check permission before setting the process group identifier of the | |
753 | * process @p to @pgid. | |
754 | * @p contains the task_struct for process being modified. | |
755 | * @pgid contains the new pgid. | |
756 | * Return 0 if permission is granted. | |
757 | * @task_getpgid: | |
758 | * Check permission before getting the process group identifier of the | |
759 | * process @p. | |
760 | * @p contains the task_struct for the process. | |
761 | * Return 0 if permission is granted. | |
762 | * @task_getsid: | |
763 | * Check permission before getting the session identifier of the process | |
764 | * @p. | |
765 | * @p contains the task_struct for the process. | |
766 | * Return 0 if permission is granted. | |
f9008e4c DQ |
767 | * @task_getsecid: |
768 | * Retrieve the security identifier of the process @p. | |
769 | * @p contains the task_struct for the process and place is into @secid. | |
8a076191 AD |
770 | * In case of failure, @secid will be set to zero. |
771 | * | |
1da177e4 LT |
772 | * @task_setgroups: |
773 | * Check permission before setting the supplementary group set of the | |
774 | * current process. | |
775 | * @group_info contains the new group information. | |
776 | * Return 0 if permission is granted. | |
777 | * @task_setnice: | |
778 | * Check permission before setting the nice value of @p to @nice. | |
779 | * @p contains the task_struct of process. | |
780 | * @nice contains the new nice value. | |
781 | * Return 0 if permission is granted. | |
03e68060 JM |
782 | * @task_setioprio |
783 | * Check permission before setting the ioprio value of @p to @ioprio. | |
784 | * @p contains the task_struct of process. | |
785 | * @ioprio contains the new ioprio value | |
786 | * Return 0 if permission is granted. | |
a1836a42 DQ |
787 | * @task_getioprio |
788 | * Check permission before getting the ioprio value of @p. | |
789 | * @p contains the task_struct of process. | |
790 | * Return 0 if permission is granted. | |
1da177e4 LT |
791 | * @task_setrlimit: |
792 | * Check permission before setting the resource limits of the current | |
793 | * process for @resource to @new_rlim. The old resource limit values can | |
794 | * be examined by dereferencing (current->signal->rlim + resource). | |
795 | * @resource contains the resource whose limit is being set. | |
796 | * @new_rlim contains the new limits for @resource. | |
797 | * Return 0 if permission is granted. | |
798 | * @task_setscheduler: | |
799 | * Check permission before setting scheduling policy and/or parameters of | |
800 | * process @p based on @policy and @lp. | |
801 | * @p contains the task_struct for process. | |
802 | * @policy contains the scheduling policy. | |
803 | * @lp contains the scheduling parameters. | |
804 | * Return 0 if permission is granted. | |
805 | * @task_getscheduler: | |
806 | * Check permission before obtaining scheduling information for process | |
807 | * @p. | |
808 | * @p contains the task_struct for process. | |
809 | * Return 0 if permission is granted. | |
35601547 DQ |
810 | * @task_movememory |
811 | * Check permission before moving memory owned by process @p. | |
812 | * @p contains the task_struct for process. | |
813 | * Return 0 if permission is granted. | |
1da177e4 LT |
814 | * @task_kill: |
815 | * Check permission before sending signal @sig to @p. @info can be NULL, | |
816 | * the constant 1, or a pointer to a siginfo structure. If @info is 1 or | |
817 | * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming | |
818 | * from the kernel and should typically be permitted. | |
819 | * SIGIO signals are handled separately by the send_sigiotask hook in | |
820 | * file_security_ops. | |
821 | * @p contains the task_struct for process. | |
822 | * @info contains the signal information. | |
823 | * @sig contains the signal value. | |
f9008e4c | 824 | * @secid contains the sid of the process where the signal originated |
1da177e4 LT |
825 | * Return 0 if permission is granted. |
826 | * @task_wait: | |
827 | * Check permission before allowing a process to reap a child process @p | |
828 | * and collect its status information. | |
829 | * @p contains the task_struct for process. | |
830 | * Return 0 if permission is granted. | |
831 | * @task_prctl: | |
832 | * Check permission before performing a process control operation on the | |
833 | * current process. | |
834 | * @option contains the operation. | |
835 | * @arg2 contains a argument. | |
836 | * @arg3 contains a argument. | |
837 | * @arg4 contains a argument. | |
838 | * @arg5 contains a argument. | |
d84f4f99 DH |
839 | * Return -ENOSYS if no-one wanted to handle this op, any other value to |
840 | * cause prctl() to return immediately with that value. | |
1da177e4 | 841 | * @task_to_inode: |
7b41b173 EP |
842 | * Set the security attributes for an inode based on an associated task's |
843 | * security attributes, e.g. for /proc/pid inodes. | |
1da177e4 LT |
844 | * @p contains the task_struct for the task. |
845 | * @inode contains the inode structure for the inode. | |
846 | * | |
847 | * Security hooks for Netlink messaging. | |
848 | * | |
849 | * @netlink_send: | |
850 | * Save security information for a netlink message so that permission | |
851 | * checking can be performed when the message is processed. The security | |
852 | * information can be saved using the eff_cap field of the | |
7b41b173 | 853 | * netlink_skb_parms structure. Also may be used to provide fine |
1da177e4 LT |
854 | * grained control over message transmission. |
855 | * @sk associated sock of task sending the message., | |
856 | * @skb contains the sk_buff structure for the netlink message. | |
857 | * Return 0 if the information was successfully saved and message | |
858 | * is allowed to be transmitted. | |
859 | * @netlink_recv: | |
860 | * Check permission before processing the received netlink message in | |
861 | * @skb. | |
862 | * @skb contains the sk_buff structure for the netlink message. | |
c7bdb545 | 863 | * @cap indicates the capability required |
1da177e4 LT |
864 | * Return 0 if permission is granted. |
865 | * | |
866 | * Security hooks for Unix domain networking. | |
867 | * | |
868 | * @unix_stream_connect: | |
869 | * Check permissions before establishing a Unix domain stream connection | |
870 | * between @sock and @other. | |
871 | * @sock contains the socket structure. | |
872 | * @other contains the peer socket structure. | |
873 | * Return 0 if permission is granted. | |
874 | * @unix_may_send: | |
875 | * Check permissions before connecting or sending datagrams from @sock to | |
876 | * @other. | |
877 | * @sock contains the socket structure. | |
878 | * @sock contains the peer socket structure. | |
879 | * Return 0 if permission is granted. | |
880 | * | |
881 | * The @unix_stream_connect and @unix_may_send hooks were necessary because | |
882 | * Linux provides an alternative to the conventional file name space for Unix | |
883 | * domain sockets. Whereas binding and connecting to sockets in the file name | |
884 | * space is mediated by the typical file permissions (and caught by the mknod | |
885 | * and permission hooks in inode_security_ops), binding and connecting to | |
886 | * sockets in the abstract name space is completely unmediated. Sufficient | |
887 | * control of Unix domain sockets in the abstract name space isn't possible | |
888 | * using only the socket layer hooks, since we need to know the actual target | |
889 | * socket, which is not looked up until we are inside the af_unix code. | |
890 | * | |
891 | * Security hooks for socket operations. | |
892 | * | |
893 | * @socket_create: | |
894 | * Check permissions prior to creating a new socket. | |
895 | * @family contains the requested protocol family. | |
896 | * @type contains the requested communications type. | |
897 | * @protocol contains the requested protocol. | |
898 | * @kern set to 1 if a kernel socket. | |
899 | * Return 0 if permission is granted. | |
900 | * @socket_post_create: | |
901 | * This hook allows a module to update or allocate a per-socket security | |
902 | * structure. Note that the security field was not added directly to the | |
903 | * socket structure, but rather, the socket security information is stored | |
904 | * in the associated inode. Typically, the inode alloc_security hook will | |
905 | * allocate and and attach security information to | |
906 | * sock->inode->i_security. This hook may be used to update the | |
907 | * sock->inode->i_security field with additional information that wasn't | |
908 | * available when the inode was allocated. | |
909 | * @sock contains the newly created socket structure. | |
910 | * @family contains the requested protocol family. | |
911 | * @type contains the requested communications type. | |
912 | * @protocol contains the requested protocol. | |
913 | * @kern set to 1 if a kernel socket. | |
914 | * @socket_bind: | |
915 | * Check permission before socket protocol layer bind operation is | |
916 | * performed and the socket @sock is bound to the address specified in the | |
917 | * @address parameter. | |
918 | * @sock contains the socket structure. | |
919 | * @address contains the address to bind to. | |
920 | * @addrlen contains the length of address. | |
7b41b173 | 921 | * Return 0 if permission is granted. |
1da177e4 LT |
922 | * @socket_connect: |
923 | * Check permission before socket protocol layer connect operation | |
924 | * attempts to connect socket @sock to a remote address, @address. | |
925 | * @sock contains the socket structure. | |
926 | * @address contains the address of remote endpoint. | |
927 | * @addrlen contains the length of address. | |
7b41b173 | 928 | * Return 0 if permission is granted. |
1da177e4 LT |
929 | * @socket_listen: |
930 | * Check permission before socket protocol layer listen operation. | |
931 | * @sock contains the socket structure. | |
932 | * @backlog contains the maximum length for the pending connection queue. | |
933 | * Return 0 if permission is granted. | |
934 | * @socket_accept: | |
935 | * Check permission before accepting a new connection. Note that the new | |
936 | * socket, @newsock, has been created and some information copied to it, | |
937 | * but the accept operation has not actually been performed. | |
938 | * @sock contains the listening socket structure. | |
939 | * @newsock contains the newly created server socket for connection. | |
940 | * Return 0 if permission is granted. | |
1da177e4 LT |
941 | * @socket_sendmsg: |
942 | * Check permission before transmitting a message to another socket. | |
943 | * @sock contains the socket structure. | |
944 | * @msg contains the message to be transmitted. | |
945 | * @size contains the size of message. | |
946 | * Return 0 if permission is granted. | |
947 | * @socket_recvmsg: | |
948 | * Check permission before receiving a message from a socket. | |
949 | * @sock contains the socket structure. | |
950 | * @msg contains the message structure. | |
951 | * @size contains the size of message structure. | |
952 | * @flags contains the operational flags. | |
7b41b173 | 953 | * Return 0 if permission is granted. |
1da177e4 LT |
954 | * @socket_getsockname: |
955 | * Check permission before the local address (name) of the socket object | |
956 | * @sock is retrieved. | |
957 | * @sock contains the socket structure. | |
958 | * Return 0 if permission is granted. | |
959 | * @socket_getpeername: | |
960 | * Check permission before the remote address (name) of a socket object | |
961 | * @sock is retrieved. | |
962 | * @sock contains the socket structure. | |
963 | * Return 0 if permission is granted. | |
964 | * @socket_getsockopt: | |
965 | * Check permissions before retrieving the options associated with socket | |
966 | * @sock. | |
967 | * @sock contains the socket structure. | |
968 | * @level contains the protocol level to retrieve option from. | |
969 | * @optname contains the name of option to retrieve. | |
970 | * Return 0 if permission is granted. | |
971 | * @socket_setsockopt: | |
972 | * Check permissions before setting the options associated with socket | |
973 | * @sock. | |
974 | * @sock contains the socket structure. | |
975 | * @level contains the protocol level to set options for. | |
976 | * @optname contains the name of the option to set. | |
7b41b173 | 977 | * Return 0 if permission is granted. |
1da177e4 LT |
978 | * @socket_shutdown: |
979 | * Checks permission before all or part of a connection on the socket | |
980 | * @sock is shut down. | |
981 | * @sock contains the socket structure. | |
982 | * @how contains the flag indicating how future sends and receives are handled. | |
983 | * Return 0 if permission is granted. | |
984 | * @socket_sock_rcv_skb: | |
985 | * Check permissions on incoming network packets. This hook is distinct | |
986 | * from Netfilter's IP input hooks since it is the first time that the | |
987 | * incoming sk_buff @skb has been associated with a particular socket, @sk. | |
0ed73185 | 988 | * Must not sleep inside this hook because some callers hold spinlocks. |
1da177e4 LT |
989 | * @sk contains the sock (not socket) associated with the incoming sk_buff. |
990 | * @skb contains the incoming network data. | |
6da34bae | 991 | * @socket_getpeersec_stream: |
1da177e4 | 992 | * This hook allows the security module to provide peer socket security |
6da34bae SH |
993 | * state for unix or connected tcp sockets to userspace via getsockopt |
994 | * SO_GETPEERSEC. For tcp sockets this can be meaningful if the | |
995 | * socket is associated with an ipsec SA. | |
1da177e4 LT |
996 | * @sock is the local socket. |
997 | * @optval userspace memory where the security state is to be copied. | |
998 | * @optlen userspace int where the module should copy the actual length | |
999 | * of the security state. | |
1000 | * @len as input is the maximum length to copy to userspace provided | |
1001 | * by the caller. | |
1002 | * Return 0 if all is well, otherwise, typical getsockopt return | |
1003 | * values. | |
6da34bae | 1004 | * @socket_getpeersec_dgram: |
7b41b173 EP |
1005 | * This hook allows the security module to provide peer socket security |
1006 | * state for udp sockets on a per-packet basis to userspace via | |
1007 | * getsockopt SO_GETPEERSEC. The application must first have indicated | |
1008 | * the IP_PASSSEC option via getsockopt. It can then retrieve the | |
1009 | * security state returned by this hook for a packet via the SCM_SECURITY | |
1010 | * ancillary message type. | |
1011 | * @skb is the skbuff for the packet being queried | |
1012 | * @secdata is a pointer to a buffer in which to copy the security data | |
1013 | * @seclen is the maximum length for @secdata | |
1014 | * Return 0 on success, error on failure. | |
1da177e4 | 1015 | * @sk_alloc_security: |
7b41b173 EP |
1016 | * Allocate and attach a security structure to the sk->sk_security field, |
1017 | * which is used to copy security attributes between local stream sockets. | |
1da177e4 LT |
1018 | * @sk_free_security: |
1019 | * Deallocate security structure. | |
892c141e VY |
1020 | * @sk_clone_security: |
1021 | * Clone/copy security structure. | |
beb8d13b VY |
1022 | * @sk_getsecid: |
1023 | * Retrieve the LSM-specific secid for the sock to enable caching of network | |
df71837d | 1024 | * authorizations. |
4237c75c VY |
1025 | * @sock_graft: |
1026 | * Sets the socket's isec sid to the sock's sid. | |
1027 | * @inet_conn_request: | |
1028 | * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid. | |
1029 | * @inet_csk_clone: | |
1030 | * Sets the new child socket's sid to the openreq sid. | |
6b877699 | 1031 | * @inet_conn_established: |
7b41b173 | 1032 | * Sets the connection's peersid to the secmark on skb. |
4237c75c VY |
1033 | * @req_classify_flow: |
1034 | * Sets the flow's sid to the openreq sid. | |
2b980dbd PM |
1035 | * @tun_dev_create: |
1036 | * Check permissions prior to creating a new TUN device. | |
1037 | * @tun_dev_post_create: | |
1038 | * This hook allows a module to update or allocate a per-socket security | |
1039 | * structure. | |
1040 | * @sk contains the newly created sock structure. | |
1041 | * @tun_dev_attach: | |
1042 | * Check permissions prior to attaching to a persistent TUN device. This | |
1043 | * hook can also be used by the module to update any security state | |
1044 | * associated with the TUN device's sock structure. | |
1045 | * @sk contains the existing sock structure. | |
df71837d TJ |
1046 | * |
1047 | * Security hooks for XFRM operations. | |
1048 | * | |
1049 | * @xfrm_policy_alloc_security: | |
03e1ad7b PM |
1050 | * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy |
1051 | * Database used by the XFRM system. | |
df71837d TJ |
1052 | * @sec_ctx contains the security context information being provided by |
1053 | * the user-level policy update program (e.g., setkey). | |
e0d1caa7 | 1054 | * Allocate a security structure to the xp->security field; the security |
c1a856c9 | 1055 | * field is initialized to NULL when the xfrm_policy is allocated. |
df71837d TJ |
1056 | * Return 0 if operation was successful (memory to allocate, legal context) |
1057 | * @xfrm_policy_clone_security: | |
03e1ad7b PM |
1058 | * @old_ctx contains an existing xfrm_sec_ctx. |
1059 | * @new_ctxp contains a new xfrm_sec_ctx being cloned from old. | |
1060 | * Allocate a security structure in new_ctxp that contains the | |
1061 | * information from the old_ctx structure. | |
df71837d TJ |
1062 | * Return 0 if operation was successful (memory to allocate). |
1063 | * @xfrm_policy_free_security: | |
03e1ad7b | 1064 | * @ctx contains the xfrm_sec_ctx |
c8c05a8e CZ |
1065 | * Deallocate xp->security. |
1066 | * @xfrm_policy_delete_security: | |
03e1ad7b | 1067 | * @ctx contains the xfrm_sec_ctx. |
c8c05a8e | 1068 | * Authorize deletion of xp->security. |
df71837d TJ |
1069 | * @xfrm_state_alloc_security: |
1070 | * @x contains the xfrm_state being added to the Security Association | |
1071 | * Database by the XFRM system. | |
1072 | * @sec_ctx contains the security context information being provided by | |
1073 | * the user-level SA generation program (e.g., setkey or racoon). | |
e0d1caa7 VY |
1074 | * @secid contains the secid from which to take the mls portion of the context. |
1075 | * Allocate a security structure to the x->security field; the security | |
1076 | * field is initialized to NULL when the xfrm_state is allocated. Set the | |
1077 | * context to correspond to either sec_ctx or polsec, with the mls portion | |
1078 | * taken from secid in the latter case. | |
df71837d TJ |
1079 | * Return 0 if operation was successful (memory to allocate, legal context). |
1080 | * @xfrm_state_free_security: | |
1081 | * @x contains the xfrm_state. | |
c8c05a8e CZ |
1082 | * Deallocate x->security. |
1083 | * @xfrm_state_delete_security: | |
1084 | * @x contains the xfrm_state. | |
1085 | * Authorize deletion of x->security. | |
df71837d | 1086 | * @xfrm_policy_lookup: |
03e1ad7b | 1087 | * @ctx contains the xfrm_sec_ctx for which the access control is being |
df71837d | 1088 | * checked. |
e0d1caa7 | 1089 | * @fl_secid contains the flow security label that is used to authorize |
df71837d TJ |
1090 | * access to the policy xp. |
1091 | * @dir contains the direction of the flow (input or output). | |
e0d1caa7 | 1092 | * Check permission when a flow selects a xfrm_policy for processing |
df71837d TJ |
1093 | * XFRMs on a packet. The hook is called when selecting either a |
1094 | * per-socket policy or a generic xfrm policy. | |
5b368e61 VY |
1095 | * Return 0 if permission is granted, -ESRCH otherwise, or -errno |
1096 | * on other errors. | |
e0d1caa7 VY |
1097 | * @xfrm_state_pol_flow_match: |
1098 | * @x contains the state to match. | |
1099 | * @xp contains the policy to check for a match. | |
1100 | * @fl contains the flow to check for a match. | |
1101 | * Return 1 if there is a match. | |
e0d1caa7 VY |
1102 | * @xfrm_decode_session: |
1103 | * @skb points to skb to decode. | |
beb8d13b VY |
1104 | * @secid points to the flow key secid to set. |
1105 | * @ckall says if all xfrms used should be checked for same secid. | |
1106 | * Return 0 if ckall is zero or all xfrms used have the same secid. | |
1da177e4 | 1107 | * |
29db9190 DH |
1108 | * Security hooks affecting all Key Management operations |
1109 | * | |
1110 | * @key_alloc: | |
1111 | * Permit allocation of a key and assign security data. Note that key does | |
1112 | * not have a serial number assigned at this point. | |
1113 | * @key points to the key. | |
7e047ef5 | 1114 | * @flags is the allocation flags |
29db9190 DH |
1115 | * Return 0 if permission is granted, -ve error otherwise. |
1116 | * @key_free: | |
1117 | * Notification of destruction; free security data. | |
1118 | * @key points to the key. | |
1119 | * No return value. | |
1120 | * @key_permission: | |
1121 | * See whether a specific operational right is granted to a process on a | |
7b41b173 | 1122 | * key. |
29db9190 | 1123 | * @key_ref refers to the key (key pointer + possession attribute bit). |
d84f4f99 | 1124 | * @cred points to the credentials to provide the context against which to |
7b41b173 | 1125 | * evaluate the security data on the key. |
29db9190 DH |
1126 | * @perm describes the combination of permissions required of this key. |
1127 | * Return 1 if permission granted, 0 if permission denied and -ve it the | |
7b41b173 | 1128 | * normal permissions model should be effected. |
70a5bb72 DH |
1129 | * @key_getsecurity: |
1130 | * Get a textual representation of the security context attached to a key | |
1131 | * for the purposes of honouring KEYCTL_GETSECURITY. This function | |
1132 | * allocates the storage for the NUL-terminated string and the caller | |
1133 | * should free it. | |
1134 | * @key points to the key to be queried. | |
1135 | * @_buffer points to a pointer that should be set to point to the | |
1136 | * resulting string (if no label or an error occurs). | |
1137 | * Return the length of the string (including terminating NUL) or -ve if | |
1138 | * an error. | |
1139 | * May also return 0 (and a NULL buffer pointer) if there is no label. | |
ee18d64c DH |
1140 | * @key_session_to_parent: |
1141 | * Forcibly assign the session keyring from a process to its parent | |
1142 | * process. | |
1143 | * @cred: Pointer to process's credentials | |
1144 | * @parent_cred: Pointer to parent process's credentials | |
1145 | * @keyring: Proposed new session keyring | |
1146 | * Return 0 if permission is granted, -ve error otherwise. | |
29db9190 | 1147 | * |
1da177e4 LT |
1148 | * Security hooks affecting all System V IPC operations. |
1149 | * | |
1150 | * @ipc_permission: | |
1151 | * Check permissions for access to IPC | |
1152 | * @ipcp contains the kernel IPC permission structure | |
1153 | * @flag contains the desired (requested) permission set | |
1154 | * Return 0 if permission is granted. | |
8a076191 AD |
1155 | * @ipc_getsecid: |
1156 | * Get the secid associated with the ipc object. | |
1157 | * @ipcp contains the kernel IPC permission structure. | |
1158 | * @secid contains a pointer to the location where result will be saved. | |
1159 | * In case of failure, @secid will be set to zero. | |
1da177e4 LT |
1160 | * |
1161 | * Security hooks for individual messages held in System V IPC message queues | |
1162 | * @msg_msg_alloc_security: | |
1163 | * Allocate and attach a security structure to the msg->security field. | |
1164 | * The security field is initialized to NULL when the structure is first | |
1165 | * created. | |
1166 | * @msg contains the message structure to be modified. | |
1167 | * Return 0 if operation was successful and permission is granted. | |
1168 | * @msg_msg_free_security: | |
1169 | * Deallocate the security structure for this message. | |
1170 | * @msg contains the message structure to be modified. | |
1171 | * | |
1172 | * Security hooks for System V IPC Message Queues | |
1173 | * | |
1174 | * @msg_queue_alloc_security: | |
1175 | * Allocate and attach a security structure to the | |
1176 | * msq->q_perm.security field. The security field is initialized to | |
1177 | * NULL when the structure is first created. | |
1178 | * @msq contains the message queue structure to be modified. | |
1179 | * Return 0 if operation was successful and permission is granted. | |
1180 | * @msg_queue_free_security: | |
1181 | * Deallocate security structure for this message queue. | |
1182 | * @msq contains the message queue structure to be modified. | |
1183 | * @msg_queue_associate: | |
1184 | * Check permission when a message queue is requested through the | |
1185 | * msgget system call. This hook is only called when returning the | |
1186 | * message queue identifier for an existing message queue, not when a | |
1187 | * new message queue is created. | |
1188 | * @msq contains the message queue to act upon. | |
1189 | * @msqflg contains the operation control flags. | |
1190 | * Return 0 if permission is granted. | |
1191 | * @msg_queue_msgctl: | |
1192 | * Check permission when a message control operation specified by @cmd | |
1193 | * is to be performed on the message queue @msq. | |
1194 | * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO. | |
1195 | * @msq contains the message queue to act upon. May be NULL. | |
1196 | * @cmd contains the operation to be performed. | |
7b41b173 | 1197 | * Return 0 if permission is granted. |
1da177e4 LT |
1198 | * @msg_queue_msgsnd: |
1199 | * Check permission before a message, @msg, is enqueued on the message | |
1200 | * queue, @msq. | |
1201 | * @msq contains the message queue to send message to. | |
1202 | * @msg contains the message to be enqueued. | |
1203 | * @msqflg contains operational flags. | |
1204 | * Return 0 if permission is granted. | |
1205 | * @msg_queue_msgrcv: | |
1206 | * Check permission before a message, @msg, is removed from the message | |
7b41b173 EP |
1207 | * queue, @msq. The @target task structure contains a pointer to the |
1208 | * process that will be receiving the message (not equal to the current | |
1da177e4 LT |
1209 | * process when inline receives are being performed). |
1210 | * @msq contains the message queue to retrieve message from. | |
1211 | * @msg contains the message destination. | |
1212 | * @target contains the task structure for recipient process. | |
1213 | * @type contains the type of message requested. | |
1214 | * @mode contains the operational flags. | |
1215 | * Return 0 if permission is granted. | |
1216 | * | |
1217 | * Security hooks for System V Shared Memory Segments | |
1218 | * | |
1219 | * @shm_alloc_security: | |
1220 | * Allocate and attach a security structure to the shp->shm_perm.security | |
1221 | * field. The security field is initialized to NULL when the structure is | |
1222 | * first created. | |
1223 | * @shp contains the shared memory structure to be modified. | |
1224 | * Return 0 if operation was successful and permission is granted. | |
1225 | * @shm_free_security: | |
1226 | * Deallocate the security struct for this memory segment. | |
1227 | * @shp contains the shared memory structure to be modified. | |
1228 | * @shm_associate: | |
1229 | * Check permission when a shared memory region is requested through the | |
1230 | * shmget system call. This hook is only called when returning the shared | |
1231 | * memory region identifier for an existing region, not when a new shared | |
1232 | * memory region is created. | |
1233 | * @shp contains the shared memory structure to be modified. | |
1234 | * @shmflg contains the operation control flags. | |
1235 | * Return 0 if permission is granted. | |
1236 | * @shm_shmctl: | |
1237 | * Check permission when a shared memory control operation specified by | |
1238 | * @cmd is to be performed on the shared memory region @shp. | |
1239 | * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO. | |
1240 | * @shp contains shared memory structure to be modified. | |
1241 | * @cmd contains the operation to be performed. | |
1242 | * Return 0 if permission is granted. | |
1243 | * @shm_shmat: | |
1244 | * Check permissions prior to allowing the shmat system call to attach the | |
1245 | * shared memory segment @shp to the data segment of the calling process. | |
1246 | * The attaching address is specified by @shmaddr. | |
1247 | * @shp contains the shared memory structure to be modified. | |
1248 | * @shmaddr contains the address to attach memory region to. | |
1249 | * @shmflg contains the operational flags. | |
1250 | * Return 0 if permission is granted. | |
1251 | * | |
1252 | * Security hooks for System V Semaphores | |
1253 | * | |
1254 | * @sem_alloc_security: | |
1255 | * Allocate and attach a security structure to the sma->sem_perm.security | |
1256 | * field. The security field is initialized to NULL when the structure is | |
1257 | * first created. | |
1258 | * @sma contains the semaphore structure | |
1259 | * Return 0 if operation was successful and permission is granted. | |
1260 | * @sem_free_security: | |
1261 | * deallocate security struct for this semaphore | |
1262 | * @sma contains the semaphore structure. | |
1263 | * @sem_associate: | |
1264 | * Check permission when a semaphore is requested through the semget | |
1265 | * system call. This hook is only called when returning the semaphore | |
1266 | * identifier for an existing semaphore, not when a new one must be | |
1267 | * created. | |
1268 | * @sma contains the semaphore structure. | |
1269 | * @semflg contains the operation control flags. | |
1270 | * Return 0 if permission is granted. | |
1271 | * @sem_semctl: | |
1272 | * Check permission when a semaphore operation specified by @cmd is to be | |
7b41b173 | 1273 | * performed on the semaphore @sma. The @sma may be NULL, e.g. for |
1da177e4 LT |
1274 | * IPC_INFO or SEM_INFO. |
1275 | * @sma contains the semaphore structure. May be NULL. | |
1276 | * @cmd contains the operation to be performed. | |
1277 | * Return 0 if permission is granted. | |
1278 | * @sem_semop | |
1279 | * Check permissions before performing operations on members of the | |
7b41b173 EP |
1280 | * semaphore set @sma. If the @alter flag is nonzero, the semaphore set |
1281 | * may be modified. | |
1da177e4 LT |
1282 | * @sma contains the semaphore structure. |
1283 | * @sops contains the operations to perform. | |
1284 | * @nsops contains the number of operations to perform. | |
1285 | * @alter contains the flag indicating whether changes are to be made. | |
1286 | * Return 0 if permission is granted. | |
1287 | * | |
9e48858f | 1288 | * @ptrace_access_check: |
5cd9c58f | 1289 | * Check permission before allowing the current process to trace the |
1da177e4 LT |
1290 | * @child process. |
1291 | * Security modules may also want to perform a process tracing check | |
1292 | * during an execve in the set_security or apply_creds hooks of | |
d84f4f99 | 1293 | * tracing check during an execve in the bprm_set_creds hook of |
1da177e4 LT |
1294 | * binprm_security_ops if the process is being traced and its security |
1295 | * attributes would be changed by the execve. | |
5cd9c58f | 1296 | * @child contains the task_struct structure for the target process. |
006ebb40 | 1297 | * @mode contains the PTRACE_MODE flags indicating the form of access. |
1da177e4 | 1298 | * Return 0 if permission is granted. |
5cd9c58f DH |
1299 | * @ptrace_traceme: |
1300 | * Check that the @parent process has sufficient permission to trace the | |
1301 | * current process before allowing the current process to present itself | |
1302 | * to the @parent process for tracing. | |
9e48858f | 1303 | * The parent process will still have to undergo the ptrace_access_check |
5cd9c58f DH |
1304 | * checks before it is allowed to trace this one. |
1305 | * @parent contains the task_struct structure for debugger process. | |
1306 | * Return 0 if permission is granted. | |
1da177e4 LT |
1307 | * @capget: |
1308 | * Get the @effective, @inheritable, and @permitted capability sets for | |
1309 | * the @target process. The hook may also perform permission checking to | |
1310 | * determine if the current process is allowed to see the capability sets | |
1311 | * of the @target process. | |
1312 | * @target contains the task_struct structure for target process. | |
1313 | * @effective contains the effective capability set. | |
1314 | * @inheritable contains the inheritable capability set. | |
1315 | * @permitted contains the permitted capability set. | |
1316 | * Return 0 if the capability sets were successfully obtained. | |
d84f4f99 | 1317 | * @capset: |
1da177e4 | 1318 | * Set the @effective, @inheritable, and @permitted capability sets for |
1cdcbec1 | 1319 | * the current process. |
d84f4f99 DH |
1320 | * @new contains the new credentials structure for target process. |
1321 | * @old contains the current credentials structure for target process. | |
1da177e4 LT |
1322 | * @effective contains the effective capability set. |
1323 | * @inheritable contains the inheritable capability set. | |
1324 | * @permitted contains the permitted capability set. | |
d84f4f99 | 1325 | * Return 0 and update @new if permission is granted. |
12b5989b | 1326 | * @capable: |
3699c53c DH |
1327 | * Check whether the @tsk process has the @cap capability in the indicated |
1328 | * credentials. | |
12b5989b | 1329 | * @tsk contains the task_struct for the process. |
3699c53c | 1330 | * @cred contains the credentials to use. |
12b5989b | 1331 | * @cap contains the capability <include/linux/capability.h>. |
3699c53c | 1332 | * @audit: Whether to write an audit message or not |
12b5989b | 1333 | * Return 0 if the capability is granted for @tsk. |
1da177e4 LT |
1334 | * @acct: |
1335 | * Check permission before enabling or disabling process accounting. If | |
1336 | * accounting is being enabled, then @file refers to the open file used to | |
1337 | * store accounting records. If accounting is being disabled, then @file | |
1338 | * is NULL. | |
1339 | * @file contains the file structure for the accounting file (may be NULL). | |
1340 | * Return 0 if permission is granted. | |
1341 | * @sysctl: | |
1342 | * Check permission before accessing the @table sysctl variable in the | |
1343 | * manner specified by @op. | |
1344 | * @table contains the ctl_table structure for the sysctl variable. | |
1345 | * @op contains the operation (001 = search, 002 = write, 004 = read). | |
1346 | * Return 0 if permission is granted. | |
1da177e4 LT |
1347 | * @syslog: |
1348 | * Check permission before accessing the kernel message ring or changing | |
1349 | * logging to the console. | |
7b41b173 | 1350 | * See the syslog(2) manual page for an explanation of the @type values. |
1da177e4 LT |
1351 | * @type contains the type of action. |
1352 | * Return 0 if permission is granted. | |
1353 | * @settime: | |
1354 | * Check permission to change the system time. | |
1355 | * struct timespec and timezone are defined in include/linux/time.h | |
1356 | * @ts contains new time | |
1357 | * @tz contains new timezone | |
1358 | * Return 0 if permission is granted. | |
1359 | * @vm_enough_memory: | |
1360 | * Check permissions for allocating a new virtual mapping. | |
34b4e4aa | 1361 | * @mm contains the mm struct it is being added to. |
7b41b173 | 1362 | * @pages contains the number of pages. |
1da177e4 LT |
1363 | * Return 0 if permission is granted. |
1364 | * | |
dc49c1f9 CZ |
1365 | * @secid_to_secctx: |
1366 | * Convert secid to security context. | |
1367 | * @secid contains the security ID. | |
1368 | * @secdata contains the pointer that stores the converted security context. | |
63cb3449 | 1369 | * @secctx_to_secid: |
7b41b173 EP |
1370 | * Convert security context to secid. |
1371 | * @secid contains the pointer to the generated security ID. | |
1372 | * @secdata contains the security context. | |
dc49c1f9 CZ |
1373 | * |
1374 | * @release_secctx: | |
1375 | * Release the security context. | |
1376 | * @secdata contains the security context. | |
1377 | * @seclen contains the length of the security context. | |
1378 | * | |
03d37d25 AD |
1379 | * Security hooks for Audit |
1380 | * | |
1381 | * @audit_rule_init: | |
1382 | * Allocate and initialize an LSM audit rule structure. | |
1383 | * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h | |
1384 | * @op contains the operator the rule uses. | |
1385 | * @rulestr contains the context where the rule will be applied to. | |
1386 | * @lsmrule contains a pointer to receive the result. | |
1387 | * Return 0 if @lsmrule has been successfully set, | |
1388 | * -EINVAL in case of an invalid rule. | |
1389 | * | |
1390 | * @audit_rule_known: | |
1391 | * Specifies whether given @rule contains any fields related to current LSM. | |
1392 | * @rule contains the audit rule of interest. | |
1393 | * Return 1 in case of relation found, 0 otherwise. | |
1394 | * | |
1395 | * @audit_rule_match: | |
1396 | * Determine if given @secid matches a rule previously approved | |
1397 | * by @audit_rule_known. | |
1398 | * @secid contains the security id in question. | |
1399 | * @field contains the field which relates to current LSM. | |
1400 | * @op contains the operator that will be used for matching. | |
1401 | * @rule points to the audit rule that will be checked against. | |
1402 | * @actx points to the audit context associated with the check. | |
1403 | * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure. | |
1404 | * | |
1405 | * @audit_rule_free: | |
1406 | * Deallocate the LSM audit rule structure previously allocated by | |
1407 | * audit_rule_init. | |
1408 | * @rule contains the allocated rule | |
1409 | * | |
1ee65e37 DQ |
1410 | * @inode_notifysecctx: |
1411 | * Notify the security module of what the security context of an inode | |
1412 | * should be. Initializes the incore security context managed by the | |
1413 | * security module for this inode. Example usage: NFS client invokes | |
1414 | * this hook to initialize the security context in its incore inode to the | |
1415 | * value provided by the server for the file when the server returned the | |
1416 | * file's attributes to the client. | |
1417 | * | |
1418 | * Must be called with inode->i_mutex locked. | |
1419 | * | |
1420 | * @inode we wish to set the security context of. | |
1421 | * @ctx contains the string which we wish to set in the inode. | |
1422 | * @ctxlen contains the length of @ctx. | |
1423 | * | |
1424 | * @inode_setsecctx: | |
1425 | * Change the security context of an inode. Updates the | |
1426 | * incore security context managed by the security module and invokes the | |
1427 | * fs code as needed (via __vfs_setxattr_noperm) to update any backing | |
1428 | * xattrs that represent the context. Example usage: NFS server invokes | |
1429 | * this hook to change the security context in its incore inode and on the | |
1430 | * backing filesystem to a value provided by the client on a SETATTR | |
1431 | * operation. | |
1432 | * | |
1433 | * Must be called with inode->i_mutex locked. | |
1434 | * | |
1435 | * @dentry contains the inode we wish to set the security context of. | |
1436 | * @ctx contains the string which we wish to set in the inode. | |
1437 | * @ctxlen contains the length of @ctx. | |
1438 | * | |
1439 | * @inode_getsecctx: | |
1440 | * Returns a string containing all relavent security context information | |
1441 | * | |
1442 | * @inode we wish to set the security context of. | |
1443 | * @ctx is a pointer in which to place the allocated security context. | |
1444 | * @ctxlen points to the place to put the length of @ctx. | |
1da177e4 LT |
1445 | * This is the main security structure. |
1446 | */ | |
1447 | struct security_operations { | |
076c54c5 AD |
1448 | char name[SECURITY_NAME_MAX + 1]; |
1449 | ||
9e48858f | 1450 | int (*ptrace_access_check) (struct task_struct *child, unsigned int mode); |
5cd9c58f | 1451 | int (*ptrace_traceme) (struct task_struct *parent); |
7b41b173 EP |
1452 | int (*capget) (struct task_struct *target, |
1453 | kernel_cap_t *effective, | |
1454 | kernel_cap_t *inheritable, kernel_cap_t *permitted); | |
d84f4f99 DH |
1455 | int (*capset) (struct cred *new, |
1456 | const struct cred *old, | |
1457 | const kernel_cap_t *effective, | |
1458 | const kernel_cap_t *inheritable, | |
1459 | const kernel_cap_t *permitted); | |
3699c53c DH |
1460 | int (*capable) (struct task_struct *tsk, const struct cred *cred, |
1461 | int cap, int audit); | |
7b41b173 EP |
1462 | int (*acct) (struct file *file); |
1463 | int (*sysctl) (struct ctl_table *table, int op); | |
1464 | int (*quotactl) (int cmds, int type, int id, struct super_block *sb); | |
1465 | int (*quota_on) (struct dentry *dentry); | |
1da177e4 LT |
1466 | int (*syslog) (int type); |
1467 | int (*settime) (struct timespec *ts, struct timezone *tz); | |
34b4e4aa | 1468 | int (*vm_enough_memory) (struct mm_struct *mm, long pages); |
1da177e4 | 1469 | |
a6f76f23 | 1470 | int (*bprm_set_creds) (struct linux_binprm *bprm); |
7b41b173 EP |
1471 | int (*bprm_check_security) (struct linux_binprm *bprm); |
1472 | int (*bprm_secureexec) (struct linux_binprm *bprm); | |
a6f76f23 DH |
1473 | void (*bprm_committing_creds) (struct linux_binprm *bprm); |
1474 | void (*bprm_committed_creds) (struct linux_binprm *bprm); | |
7b41b173 EP |
1475 | |
1476 | int (*sb_alloc_security) (struct super_block *sb); | |
1477 | void (*sb_free_security) (struct super_block *sb); | |
1478 | int (*sb_copy_data) (char *orig, char *copy); | |
12204e24 | 1479 | int (*sb_kern_mount) (struct super_block *sb, int flags, void *data); |
2069f457 | 1480 | int (*sb_show_options) (struct seq_file *m, struct super_block *sb); |
726c3342 | 1481 | int (*sb_statfs) (struct dentry *dentry); |
b5266eb4 | 1482 | int (*sb_mount) (char *dev_name, struct path *path, |
1da177e4 | 1483 | char *type, unsigned long flags, void *data); |
7b41b173 EP |
1484 | int (*sb_check_sb) (struct vfsmount *mnt, struct path *path); |
1485 | int (*sb_umount) (struct vfsmount *mnt, int flags); | |
1486 | void (*sb_umount_close) (struct vfsmount *mnt); | |
1487 | void (*sb_umount_busy) (struct vfsmount *mnt); | |
1488 | void (*sb_post_remount) (struct vfsmount *mnt, | |
1da177e4 | 1489 | unsigned long flags, void *data); |
7b41b173 | 1490 | void (*sb_post_addmount) (struct vfsmount *mnt, |
b5266eb4 AV |
1491 | struct path *mountpoint); |
1492 | int (*sb_pivotroot) (struct path *old_path, | |
1493 | struct path *new_path); | |
1494 | void (*sb_post_pivotroot) (struct path *old_path, | |
1495 | struct path *new_path); | |
e0007529 EP |
1496 | int (*sb_set_mnt_opts) (struct super_block *sb, |
1497 | struct security_mnt_opts *opts); | |
c9180a57 EP |
1498 | void (*sb_clone_mnt_opts) (const struct super_block *oldsb, |
1499 | struct super_block *newsb); | |
e0007529 | 1500 | int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts); |
1da177e4 | 1501 | |
be6d3e56 KT |
1502 | #ifdef CONFIG_SECURITY_PATH |
1503 | int (*path_unlink) (struct path *dir, struct dentry *dentry); | |
1504 | int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode); | |
1505 | int (*path_rmdir) (struct path *dir, struct dentry *dentry); | |
1506 | int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode, | |
1507 | unsigned int dev); | |
1508 | int (*path_truncate) (struct path *path, loff_t length, | |
1509 | unsigned int time_attrs); | |
1510 | int (*path_symlink) (struct path *dir, struct dentry *dentry, | |
1511 | const char *old_name); | |
1512 | int (*path_link) (struct dentry *old_dentry, struct path *new_dir, | |
1513 | struct dentry *new_dentry); | |
1514 | int (*path_rename) (struct path *old_dir, struct dentry *old_dentry, | |
1515 | struct path *new_dir, struct dentry *new_dentry); | |
89eda068 TH |
1516 | int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt, |
1517 | mode_t mode); | |
1518 | int (*path_chown) (struct path *path, uid_t uid, gid_t gid); | |
8b8efb44 | 1519 | int (*path_chroot) (struct path *path); |
be6d3e56 KT |
1520 | #endif |
1521 | ||
7b41b173 | 1522 | int (*inode_alloc_security) (struct inode *inode); |
1da177e4 | 1523 | void (*inode_free_security) (struct inode *inode); |
5e41ff9e SS |
1524 | int (*inode_init_security) (struct inode *inode, struct inode *dir, |
1525 | char **name, void **value, size_t *len); | |
1da177e4 | 1526 | int (*inode_create) (struct inode *dir, |
7b41b173 | 1527 | struct dentry *dentry, int mode); |
1da177e4 | 1528 | int (*inode_link) (struct dentry *old_dentry, |
7b41b173 | 1529 | struct inode *dir, struct dentry *new_dentry); |
1da177e4 LT |
1530 | int (*inode_unlink) (struct inode *dir, struct dentry *dentry); |
1531 | int (*inode_symlink) (struct inode *dir, | |
7b41b173 | 1532 | struct dentry *dentry, const char *old_name); |
1da177e4 | 1533 | int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode); |
1da177e4 LT |
1534 | int (*inode_rmdir) (struct inode *dir, struct dentry *dentry); |
1535 | int (*inode_mknod) (struct inode *dir, struct dentry *dentry, | |
7b41b173 | 1536 | int mode, dev_t dev); |
1da177e4 | 1537 | int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry, |
7b41b173 | 1538 | struct inode *new_dir, struct dentry *new_dentry); |
1da177e4 LT |
1539 | int (*inode_readlink) (struct dentry *dentry); |
1540 | int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd); | |
b77b0646 | 1541 | int (*inode_permission) (struct inode *inode, int mask); |
1da177e4 LT |
1542 | int (*inode_setattr) (struct dentry *dentry, struct iattr *attr); |
1543 | int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry); | |
7b41b173 | 1544 | void (*inode_delete) (struct inode *inode); |
8f0cfa52 DH |
1545 | int (*inode_setxattr) (struct dentry *dentry, const char *name, |
1546 | const void *value, size_t size, int flags); | |
1547 | void (*inode_post_setxattr) (struct dentry *dentry, const char *name, | |
1548 | const void *value, size_t size, int flags); | |
1549 | int (*inode_getxattr) (struct dentry *dentry, const char *name); | |
1da177e4 | 1550 | int (*inode_listxattr) (struct dentry *dentry); |
8f0cfa52 | 1551 | int (*inode_removexattr) (struct dentry *dentry, const char *name); |
b5376771 SH |
1552 | int (*inode_need_killpriv) (struct dentry *dentry); |
1553 | int (*inode_killpriv) (struct dentry *dentry); | |
7b41b173 EP |
1554 | int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc); |
1555 | int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags); | |
1556 | int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size); | |
1557 | void (*inode_getsecid) (const struct inode *inode, u32 *secid); | |
1558 | ||
1559 | int (*file_permission) (struct file *file, int mask); | |
1560 | int (*file_alloc_security) (struct file *file); | |
1561 | void (*file_free_security) (struct file *file); | |
1562 | int (*file_ioctl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1563 | unsigned long arg); |
7b41b173 | 1564 | int (*file_mmap) (struct file *file, |
ed032189 EP |
1565 | unsigned long reqprot, unsigned long prot, |
1566 | unsigned long flags, unsigned long addr, | |
1567 | unsigned long addr_only); | |
7b41b173 | 1568 | int (*file_mprotect) (struct vm_area_struct *vma, |
1da177e4 LT |
1569 | unsigned long reqprot, |
1570 | unsigned long prot); | |
7b41b173 EP |
1571 | int (*file_lock) (struct file *file, unsigned int cmd); |
1572 | int (*file_fcntl) (struct file *file, unsigned int cmd, | |
1da177e4 | 1573 | unsigned long arg); |
7b41b173 EP |
1574 | int (*file_set_fowner) (struct file *file); |
1575 | int (*file_send_sigiotask) (struct task_struct *tsk, | |
1576 | struct fown_struct *fown, int sig); | |
1577 | int (*file_receive) (struct file *file); | |
745ca247 | 1578 | int (*dentry_open) (struct file *file, const struct cred *cred); |
1da177e4 LT |
1579 | |
1580 | int (*task_create) (unsigned long clone_flags); | |
ee18d64c | 1581 | int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp); |
f1752eec | 1582 | void (*cred_free) (struct cred *cred); |
d84f4f99 DH |
1583 | int (*cred_prepare)(struct cred *new, const struct cred *old, |
1584 | gfp_t gfp); | |
1585 | void (*cred_commit)(struct cred *new, const struct cred *old); | |
ee18d64c | 1586 | void (*cred_transfer)(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1587 | int (*kernel_act_as)(struct cred *new, u32 secid); |
1588 | int (*kernel_create_files_as)(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1589 | int (*kernel_module_request)(char *kmod_name); |
1da177e4 | 1590 | int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags); |
d84f4f99 DH |
1591 | int (*task_fix_setuid) (struct cred *new, const struct cred *old, |
1592 | int flags); | |
1da177e4 | 1593 | int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags); |
7b41b173 EP |
1594 | int (*task_setpgid) (struct task_struct *p, pid_t pgid); |
1595 | int (*task_getpgid) (struct task_struct *p); | |
1596 | int (*task_getsid) (struct task_struct *p); | |
1597 | void (*task_getsecid) (struct task_struct *p, u32 *secid); | |
1da177e4 | 1598 | int (*task_setgroups) (struct group_info *group_info); |
7b41b173 EP |
1599 | int (*task_setnice) (struct task_struct *p, int nice); |
1600 | int (*task_setioprio) (struct task_struct *p, int ioprio); | |
1601 | int (*task_getioprio) (struct task_struct *p); | |
1602 | int (*task_setrlimit) (unsigned int resource, struct rlimit *new_rlim); | |
1603 | int (*task_setscheduler) (struct task_struct *p, int policy, | |
1604 | struct sched_param *lp); | |
1605 | int (*task_getscheduler) (struct task_struct *p); | |
1606 | int (*task_movememory) (struct task_struct *p); | |
1607 | int (*task_kill) (struct task_struct *p, | |
1608 | struct siginfo *info, int sig, u32 secid); | |
1609 | int (*task_wait) (struct task_struct *p); | |
1da177e4 LT |
1610 | int (*task_prctl) (int option, unsigned long arg2, |
1611 | unsigned long arg3, unsigned long arg4, | |
d84f4f99 | 1612 | unsigned long arg5); |
7b41b173 | 1613 | void (*task_to_inode) (struct task_struct *p, struct inode *inode); |
1da177e4 | 1614 | |
7b41b173 | 1615 | int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag); |
8a076191 | 1616 | void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid); |
1da177e4 | 1617 | |
7b41b173 EP |
1618 | int (*msg_msg_alloc_security) (struct msg_msg *msg); |
1619 | void (*msg_msg_free_security) (struct msg_msg *msg); | |
1620 | ||
1621 | int (*msg_queue_alloc_security) (struct msg_queue *msq); | |
1622 | void (*msg_queue_free_security) (struct msg_queue *msq); | |
1623 | int (*msg_queue_associate) (struct msg_queue *msq, int msqflg); | |
1624 | int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd); | |
1625 | int (*msg_queue_msgsnd) (struct msg_queue *msq, | |
1626 | struct msg_msg *msg, int msqflg); | |
1627 | int (*msg_queue_msgrcv) (struct msg_queue *msq, | |
1628 | struct msg_msg *msg, | |
1629 | struct task_struct *target, | |
1da177e4 LT |
1630 | long type, int mode); |
1631 | ||
7b41b173 EP |
1632 | int (*shm_alloc_security) (struct shmid_kernel *shp); |
1633 | void (*shm_free_security) (struct shmid_kernel *shp); | |
1634 | int (*shm_associate) (struct shmid_kernel *shp, int shmflg); | |
1635 | int (*shm_shmctl) (struct shmid_kernel *shp, int cmd); | |
1636 | int (*shm_shmat) (struct shmid_kernel *shp, | |
1da177e4 LT |
1637 | char __user *shmaddr, int shmflg); |
1638 | ||
7b41b173 EP |
1639 | int (*sem_alloc_security) (struct sem_array *sma); |
1640 | void (*sem_free_security) (struct sem_array *sma); | |
1641 | int (*sem_associate) (struct sem_array *sma, int semflg); | |
1642 | int (*sem_semctl) (struct sem_array *sma, int cmd); | |
1643 | int (*sem_semop) (struct sem_array *sma, | |
1644 | struct sembuf *sops, unsigned nsops, int alter); | |
1da177e4 | 1645 | |
7b41b173 EP |
1646 | int (*netlink_send) (struct sock *sk, struct sk_buff *skb); |
1647 | int (*netlink_recv) (struct sk_buff *skb, int cap); | |
1da177e4 | 1648 | |
1da177e4 LT |
1649 | void (*d_instantiate) (struct dentry *dentry, struct inode *inode); |
1650 | ||
7b41b173 EP |
1651 | int (*getprocattr) (struct task_struct *p, char *name, char **value); |
1652 | int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size); | |
1653 | int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen); | |
7bf570dc | 1654 | int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid); |
7b41b173 | 1655 | void (*release_secctx) (char *secdata, u32 seclen); |
1da177e4 | 1656 | |
1ee65e37 DQ |
1657 | int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen); |
1658 | int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1659 | int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen); | |
1660 | ||
1da177e4 | 1661 | #ifdef CONFIG_SECURITY_NETWORK |
7b41b173 EP |
1662 | int (*unix_stream_connect) (struct socket *sock, |
1663 | struct socket *other, struct sock *newsk); | |
1664 | int (*unix_may_send) (struct socket *sock, struct socket *other); | |
1da177e4 LT |
1665 | |
1666 | int (*socket_create) (int family, int type, int protocol, int kern); | |
7b41b173 | 1667 | int (*socket_post_create) (struct socket *sock, int family, |
7420ed23 | 1668 | int type, int protocol, int kern); |
7b41b173 EP |
1669 | int (*socket_bind) (struct socket *sock, |
1670 | struct sockaddr *address, int addrlen); | |
1671 | int (*socket_connect) (struct socket *sock, | |
1672 | struct sockaddr *address, int addrlen); | |
1673 | int (*socket_listen) (struct socket *sock, int backlog); | |
1674 | int (*socket_accept) (struct socket *sock, struct socket *newsock); | |
7b41b173 EP |
1675 | int (*socket_sendmsg) (struct socket *sock, |
1676 | struct msghdr *msg, int size); | |
1677 | int (*socket_recvmsg) (struct socket *sock, | |
1678 | struct msghdr *msg, int size, int flags); | |
1679 | int (*socket_getsockname) (struct socket *sock); | |
1680 | int (*socket_getpeername) (struct socket *sock); | |
1681 | int (*socket_getsockopt) (struct socket *sock, int level, int optname); | |
1682 | int (*socket_setsockopt) (struct socket *sock, int level, int optname); | |
1683 | int (*socket_shutdown) (struct socket *sock, int how); | |
1684 | int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb); | |
2c7946a7 | 1685 | int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len); |
dc49c1f9 | 1686 | int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid); |
7d877f3b | 1687 | int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority); |
1da177e4 | 1688 | void (*sk_free_security) (struct sock *sk); |
892c141e | 1689 | void (*sk_clone_security) (const struct sock *sk, struct sock *newsk); |
beb8d13b | 1690 | void (*sk_getsecid) (struct sock *sk, u32 *secid); |
7b41b173 EP |
1691 | void (*sock_graft) (struct sock *sk, struct socket *parent); |
1692 | int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb, | |
1693 | struct request_sock *req); | |
1694 | void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req); | |
1695 | void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb); | |
1696 | void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl); | |
2b980dbd PM |
1697 | int (*tun_dev_create)(void); |
1698 | void (*tun_dev_post_create)(struct sock *sk); | |
1699 | int (*tun_dev_attach)(struct sock *sk); | |
1da177e4 | 1700 | #endif /* CONFIG_SECURITY_NETWORK */ |
29db9190 | 1701 | |
df71837d | 1702 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
03e1ad7b | 1703 | int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp, |
c1a856c9 | 1704 | struct xfrm_user_sec_ctx *sec_ctx); |
03e1ad7b PM |
1705 | int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx); |
1706 | void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx); | |
1707 | int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx); | |
e0d1caa7 | 1708 | int (*xfrm_state_alloc_security) (struct xfrm_state *x, |
c1a856c9 | 1709 | struct xfrm_user_sec_ctx *sec_ctx, |
e0d1caa7 | 1710 | u32 secid); |
df71837d | 1711 | void (*xfrm_state_free_security) (struct xfrm_state *x); |
c8c05a8e | 1712 | int (*xfrm_state_delete_security) (struct xfrm_state *x); |
7b41b173 EP |
1713 | int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
1714 | int (*xfrm_state_pol_flow_match) (struct xfrm_state *x, | |
1715 | struct xfrm_policy *xp, | |
1716 | struct flowi *fl); | |
1717 | int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall); | |
df71837d TJ |
1718 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
1719 | ||
29db9190 DH |
1720 | /* key management security hooks */ |
1721 | #ifdef CONFIG_KEYS | |
d84f4f99 | 1722 | int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags); |
7b41b173 EP |
1723 | void (*key_free) (struct key *key); |
1724 | int (*key_permission) (key_ref_t key_ref, | |
d84f4f99 | 1725 | const struct cred *cred, |
7b41b173 | 1726 | key_perm_t perm); |
70a5bb72 | 1727 | int (*key_getsecurity)(struct key *key, char **_buffer); |
ee18d64c DH |
1728 | int (*key_session_to_parent)(const struct cred *cred, |
1729 | const struct cred *parent_cred, | |
1730 | struct key *key); | |
29db9190 DH |
1731 | #endif /* CONFIG_KEYS */ |
1732 | ||
03d37d25 | 1733 | #ifdef CONFIG_AUDIT |
7b41b173 EP |
1734 | int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule); |
1735 | int (*audit_rule_known) (struct audit_krule *krule); | |
1736 | int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule, | |
1737 | struct audit_context *actx); | |
1738 | void (*audit_rule_free) (void *lsmrule); | |
03d37d25 | 1739 | #endif /* CONFIG_AUDIT */ |
1da177e4 LT |
1740 | }; |
1741 | ||
1da177e4 | 1742 | /* prototypes */ |
7b41b173 | 1743 | extern int security_init(void); |
076c54c5 | 1744 | extern int security_module_enable(struct security_operations *ops); |
7b41b173 | 1745 | extern int register_security(struct security_operations *ops); |
1da177e4 | 1746 | |
20510f2f | 1747 | /* Security operations */ |
9e48858f | 1748 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode); |
5cd9c58f | 1749 | int security_ptrace_traceme(struct task_struct *parent); |
20510f2f | 1750 | int security_capget(struct task_struct *target, |
7b41b173 EP |
1751 | kernel_cap_t *effective, |
1752 | kernel_cap_t *inheritable, | |
1753 | kernel_cap_t *permitted); | |
d84f4f99 DH |
1754 | int security_capset(struct cred *new, const struct cred *old, |
1755 | const kernel_cap_t *effective, | |
1756 | const kernel_cap_t *inheritable, | |
1757 | const kernel_cap_t *permitted); | |
3699c53c DH |
1758 | int security_capable(int cap); |
1759 | int security_real_capable(struct task_struct *tsk, int cap); | |
1760 | int security_real_capable_noaudit(struct task_struct *tsk, int cap); | |
20510f2f JM |
1761 | int security_acct(struct file *file); |
1762 | int security_sysctl(struct ctl_table *table, int op); | |
1763 | int security_quotactl(int cmds, int type, int id, struct super_block *sb); | |
1764 | int security_quota_on(struct dentry *dentry); | |
1765 | int security_syslog(int type); | |
1766 | int security_settime(struct timespec *ts, struct timezone *tz); | |
1767 | int security_vm_enough_memory(long pages); | |
1768 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); | |
731572d3 | 1769 | int security_vm_enough_memory_kern(long pages); |
a6f76f23 | 1770 | int security_bprm_set_creds(struct linux_binprm *bprm); |
20510f2f | 1771 | int security_bprm_check(struct linux_binprm *bprm); |
a6f76f23 DH |
1772 | void security_bprm_committing_creds(struct linux_binprm *bprm); |
1773 | void security_bprm_committed_creds(struct linux_binprm *bprm); | |
20510f2f JM |
1774 | int security_bprm_secureexec(struct linux_binprm *bprm); |
1775 | int security_sb_alloc(struct super_block *sb); | |
1776 | void security_sb_free(struct super_block *sb); | |
e0007529 | 1777 | int security_sb_copy_data(char *orig, char *copy); |
12204e24 | 1778 | int security_sb_kern_mount(struct super_block *sb, int flags, void *data); |
2069f457 | 1779 | int security_sb_show_options(struct seq_file *m, struct super_block *sb); |
20510f2f | 1780 | int security_sb_statfs(struct dentry *dentry); |
b5266eb4 | 1781 | int security_sb_mount(char *dev_name, struct path *path, |
7b41b173 | 1782 | char *type, unsigned long flags, void *data); |
b5266eb4 | 1783 | int security_sb_check_sb(struct vfsmount *mnt, struct path *path); |
20510f2f JM |
1784 | int security_sb_umount(struct vfsmount *mnt, int flags); |
1785 | void security_sb_umount_close(struct vfsmount *mnt); | |
1786 | void security_sb_umount_busy(struct vfsmount *mnt); | |
1787 | void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data); | |
b5266eb4 AV |
1788 | void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint); |
1789 | int security_sb_pivotroot(struct path *old_path, struct path *new_path); | |
1790 | void security_sb_post_pivotroot(struct path *old_path, struct path *new_path); | |
e0007529 | 1791 | int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts); |
c9180a57 EP |
1792 | void security_sb_clone_mnt_opts(const struct super_block *oldsb, |
1793 | struct super_block *newsb); | |
e0007529 | 1794 | int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts); |
c9180a57 | 1795 | |
20510f2f JM |
1796 | int security_inode_alloc(struct inode *inode); |
1797 | void security_inode_free(struct inode *inode); | |
1798 | int security_inode_init_security(struct inode *inode, struct inode *dir, | |
1799 | char **name, void **value, size_t *len); | |
1800 | int security_inode_create(struct inode *dir, struct dentry *dentry, int mode); | |
1801 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, | |
1802 | struct dentry *new_dentry); | |
1803 | int security_inode_unlink(struct inode *dir, struct dentry *dentry); | |
1804 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
7b41b173 | 1805 | const char *old_name); |
20510f2f JM |
1806 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode); |
1807 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry); | |
1808 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev); | |
1809 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, | |
7b41b173 | 1810 | struct inode *new_dir, struct dentry *new_dentry); |
20510f2f JM |
1811 | int security_inode_readlink(struct dentry *dentry); |
1812 | int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd); | |
b77b0646 | 1813 | int security_inode_permission(struct inode *inode, int mask); |
20510f2f JM |
1814 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr); |
1815 | int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry); | |
1816 | void security_inode_delete(struct inode *inode); | |
8f0cfa52 DH |
1817 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
1818 | const void *value, size_t size, int flags); | |
1819 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, | |
1820 | const void *value, size_t size, int flags); | |
1821 | int security_inode_getxattr(struct dentry *dentry, const char *name); | |
20510f2f | 1822 | int security_inode_listxattr(struct dentry *dentry); |
8f0cfa52 | 1823 | int security_inode_removexattr(struct dentry *dentry, const char *name); |
b5376771 SH |
1824 | int security_inode_need_killpriv(struct dentry *dentry); |
1825 | int security_inode_killpriv(struct dentry *dentry); | |
42492594 | 1826 | int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc); |
20510f2f JM |
1827 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); |
1828 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); | |
8a076191 | 1829 | void security_inode_getsecid(const struct inode *inode, u32 *secid); |
20510f2f JM |
1830 | int security_file_permission(struct file *file, int mask); |
1831 | int security_file_alloc(struct file *file); | |
1832 | void security_file_free(struct file *file); | |
1833 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); | |
1834 | int security_file_mmap(struct file *file, unsigned long reqprot, | |
1835 | unsigned long prot, unsigned long flags, | |
1836 | unsigned long addr, unsigned long addr_only); | |
1837 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, | |
7b41b173 | 1838 | unsigned long prot); |
20510f2f JM |
1839 | int security_file_lock(struct file *file, unsigned int cmd); |
1840 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); | |
1841 | int security_file_set_fowner(struct file *file); | |
1842 | int security_file_send_sigiotask(struct task_struct *tsk, | |
7b41b173 | 1843 | struct fown_struct *fown, int sig); |
20510f2f | 1844 | int security_file_receive(struct file *file); |
745ca247 | 1845 | int security_dentry_open(struct file *file, const struct cred *cred); |
20510f2f | 1846 | int security_task_create(unsigned long clone_flags); |
ee18d64c | 1847 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); |
f1752eec | 1848 | void security_cred_free(struct cred *cred); |
d84f4f99 DH |
1849 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); |
1850 | void security_commit_creds(struct cred *new, const struct cred *old); | |
ee18d64c | 1851 | void security_transfer_creds(struct cred *new, const struct cred *old); |
3a3b7ce9 DH |
1852 | int security_kernel_act_as(struct cred *new, u32 secid); |
1853 | int security_kernel_create_files_as(struct cred *new, struct inode *inode); | |
dd8dbf2e | 1854 | int security_kernel_module_request(char *kmod_name); |
20510f2f | 1855 | int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags); |
d84f4f99 DH |
1856 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1857 | int flags); | |
20510f2f JM |
1858 | int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags); |
1859 | int security_task_setpgid(struct task_struct *p, pid_t pgid); | |
1860 | int security_task_getpgid(struct task_struct *p); | |
1861 | int security_task_getsid(struct task_struct *p); | |
1862 | void security_task_getsecid(struct task_struct *p, u32 *secid); | |
1863 | int security_task_setgroups(struct group_info *group_info); | |
1864 | int security_task_setnice(struct task_struct *p, int nice); | |
1865 | int security_task_setioprio(struct task_struct *p, int ioprio); | |
1866 | int security_task_getioprio(struct task_struct *p); | |
1867 | int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim); | |
1868 | int security_task_setscheduler(struct task_struct *p, | |
1869 | int policy, struct sched_param *lp); | |
1870 | int security_task_getscheduler(struct task_struct *p); | |
1871 | int security_task_movememory(struct task_struct *p); | |
1872 | int security_task_kill(struct task_struct *p, struct siginfo *info, | |
1873 | int sig, u32 secid); | |
1874 | int security_task_wait(struct task_struct *p); | |
1875 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, | |
d84f4f99 | 1876 | unsigned long arg4, unsigned long arg5); |
20510f2f JM |
1877 | void security_task_to_inode(struct task_struct *p, struct inode *inode); |
1878 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); | |
8a076191 | 1879 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid); |
20510f2f JM |
1880 | int security_msg_msg_alloc(struct msg_msg *msg); |
1881 | void security_msg_msg_free(struct msg_msg *msg); | |
1882 | int security_msg_queue_alloc(struct msg_queue *msq); | |
1883 | void security_msg_queue_free(struct msg_queue *msq); | |
1884 | int security_msg_queue_associate(struct msg_queue *msq, int msqflg); | |
1885 | int security_msg_queue_msgctl(struct msg_queue *msq, int cmd); | |
1886 | int security_msg_queue_msgsnd(struct msg_queue *msq, | |
7b41b173 | 1887 | struct msg_msg *msg, int msqflg); |
20510f2f | 1888 | int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, |
7b41b173 | 1889 | struct task_struct *target, long type, int mode); |
20510f2f JM |
1890 | int security_shm_alloc(struct shmid_kernel *shp); |
1891 | void security_shm_free(struct shmid_kernel *shp); | |
1892 | int security_shm_associate(struct shmid_kernel *shp, int shmflg); | |
1893 | int security_shm_shmctl(struct shmid_kernel *shp, int cmd); | |
1894 | int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg); | |
1895 | int security_sem_alloc(struct sem_array *sma); | |
1896 | void security_sem_free(struct sem_array *sma); | |
1897 | int security_sem_associate(struct sem_array *sma, int semflg); | |
1898 | int security_sem_semctl(struct sem_array *sma, int cmd); | |
1899 | int security_sem_semop(struct sem_array *sma, struct sembuf *sops, | |
1900 | unsigned nsops, int alter); | |
7b41b173 | 1901 | void security_d_instantiate(struct dentry *dentry, struct inode *inode); |
20510f2f JM |
1902 | int security_getprocattr(struct task_struct *p, char *name, char **value); |
1903 | int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size); | |
1904 | int security_netlink_send(struct sock *sk, struct sk_buff *skb); | |
1905 | int security_netlink_recv(struct sk_buff *skb, int cap); | |
1906 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); | |
7bf570dc | 1907 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); |
20510f2f JM |
1908 | void security_release_secctx(char *secdata, u32 seclen); |
1909 | ||
1ee65e37 DQ |
1910 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); |
1911 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); | |
1912 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); | |
1da177e4 | 1913 | #else /* CONFIG_SECURITY */ |
e0007529 EP |
1914 | struct security_mnt_opts { |
1915 | }; | |
1916 | ||
1917 | static inline void security_init_mnt_opts(struct security_mnt_opts *opts) | |
1918 | { | |
1919 | } | |
1920 | ||
1921 | static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |
1922 | { | |
1923 | } | |
1da177e4 LT |
1924 | |
1925 | /* | |
1926 | * This is the default capabilities functionality. Most of these functions | |
1927 | * are just stubbed out, but a few must call the proper capable code. | |
1928 | */ | |
1929 | ||
1930 | static inline int security_init(void) | |
1931 | { | |
1932 | return 0; | |
1933 | } | |
1934 | ||
9e48858f | 1935 | static inline int security_ptrace_access_check(struct task_struct *child, |
5cd9c58f DH |
1936 | unsigned int mode) |
1937 | { | |
9e48858f | 1938 | return cap_ptrace_access_check(child, mode); |
5cd9c58f DH |
1939 | } |
1940 | ||
5e186b57 | 1941 | static inline int security_ptrace_traceme(struct task_struct *parent) |
1da177e4 | 1942 | { |
5cd9c58f | 1943 | return cap_ptrace_traceme(parent); |
1da177e4 LT |
1944 | } |
1945 | ||
7b41b173 | 1946 | static inline int security_capget(struct task_struct *target, |
1da177e4 LT |
1947 | kernel_cap_t *effective, |
1948 | kernel_cap_t *inheritable, | |
1949 | kernel_cap_t *permitted) | |
1950 | { | |
7b41b173 | 1951 | return cap_capget(target, effective, inheritable, permitted); |
1da177e4 LT |
1952 | } |
1953 | ||
d84f4f99 DH |
1954 | static inline int security_capset(struct cred *new, |
1955 | const struct cred *old, | |
1956 | const kernel_cap_t *effective, | |
1957 | const kernel_cap_t *inheritable, | |
1958 | const kernel_cap_t *permitted) | |
1da177e4 | 1959 | { |
d84f4f99 | 1960 | return cap_capset(new, old, effective, inheritable, permitted); |
1da177e4 LT |
1961 | } |
1962 | ||
3699c53c | 1963 | static inline int security_capable(int cap) |
12b5989b | 1964 | { |
3699c53c | 1965 | return cap_capable(current, current_cred(), cap, SECURITY_CAP_AUDIT); |
06112163 EP |
1966 | } |
1967 | ||
3699c53c | 1968 | static inline int security_real_capable(struct task_struct *tsk, int cap) |
06112163 | 1969 | { |
3699c53c DH |
1970 | int ret; |
1971 | ||
1972 | rcu_read_lock(); | |
1973 | ret = cap_capable(tsk, __task_cred(tsk), cap, SECURITY_CAP_AUDIT); | |
1974 | rcu_read_unlock(); | |
1975 | return ret; | |
1976 | } | |
1977 | ||
1978 | static inline | |
1979 | int security_real_capable_noaudit(struct task_struct *tsk, int cap) | |
1980 | { | |
1981 | int ret; | |
1982 | ||
1983 | rcu_read_lock(); | |
1984 | ret = cap_capable(tsk, __task_cred(tsk), cap, | |
1985 | SECURITY_CAP_NOAUDIT); | |
1986 | rcu_read_unlock(); | |
1987 | return ret; | |
12b5989b CW |
1988 | } |
1989 | ||
7b41b173 | 1990 | static inline int security_acct(struct file *file) |
1da177e4 LT |
1991 | { |
1992 | return 0; | |
1993 | } | |
1994 | ||
1995 | static inline int security_sysctl(struct ctl_table *table, int op) | |
1996 | { | |
1997 | return 0; | |
1998 | } | |
1999 | ||
7b41b173 EP |
2000 | static inline int security_quotactl(int cmds, int type, int id, |
2001 | struct super_block *sb) | |
1da177e4 LT |
2002 | { |
2003 | return 0; | |
2004 | } | |
2005 | ||
7b41b173 | 2006 | static inline int security_quota_on(struct dentry *dentry) |
1da177e4 LT |
2007 | { |
2008 | return 0; | |
2009 | } | |
2010 | ||
2011 | static inline int security_syslog(int type) | |
2012 | { | |
2013 | return cap_syslog(type); | |
2014 | } | |
2015 | ||
2016 | static inline int security_settime(struct timespec *ts, struct timezone *tz) | |
2017 | { | |
2018 | return cap_settime(ts, tz); | |
2019 | } | |
2020 | ||
2021 | static inline int security_vm_enough_memory(long pages) | |
2022 | { | |
1b79cd04 | 2023 | WARN_ON(current->mm == NULL); |
34b4e4aa AC |
2024 | return cap_vm_enough_memory(current->mm, pages); |
2025 | } | |
2026 | ||
1b79cd04 | 2027 | static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
731572d3 | 2028 | { |
1b79cd04 JO |
2029 | WARN_ON(mm == NULL); |
2030 | return cap_vm_enough_memory(mm, pages); | |
731572d3 AC |
2031 | } |
2032 | ||
1b79cd04 | 2033 | static inline int security_vm_enough_memory_kern(long pages) |
34b4e4aa | 2034 | { |
1b79cd04 JO |
2035 | /* If current->mm is a kernel thread then we will pass NULL, |
2036 | for this specific case that is fine */ | |
2037 | return cap_vm_enough_memory(current->mm, pages); | |
1da177e4 LT |
2038 | } |
2039 | ||
a6f76f23 | 2040 | static inline int security_bprm_set_creds(struct linux_binprm *bprm) |
7b41b173 | 2041 | { |
a6f76f23 | 2042 | return cap_bprm_set_creds(bprm); |
1da177e4 LT |
2043 | } |
2044 | ||
a6f76f23 | 2045 | static inline int security_bprm_check(struct linux_binprm *bprm) |
1da177e4 | 2046 | { |
a6f76f23 | 2047 | return 0; |
1da177e4 LT |
2048 | } |
2049 | ||
a6f76f23 | 2050 | static inline void security_bprm_committing_creds(struct linux_binprm *bprm) |
1da177e4 | 2051 | { |
1da177e4 LT |
2052 | } |
2053 | ||
a6f76f23 | 2054 | static inline void security_bprm_committed_creds(struct linux_binprm *bprm) |
1da177e4 | 2055 | { |
1da177e4 LT |
2056 | } |
2057 | ||
7b41b173 | 2058 | static inline int security_bprm_secureexec(struct linux_binprm *bprm) |
1da177e4 LT |
2059 | { |
2060 | return cap_bprm_secureexec(bprm); | |
2061 | } | |
2062 | ||
7b41b173 | 2063 | static inline int security_sb_alloc(struct super_block *sb) |
1da177e4 LT |
2064 | { |
2065 | return 0; | |
2066 | } | |
2067 | ||
7b41b173 | 2068 | static inline void security_sb_free(struct super_block *sb) |
1da177e4 LT |
2069 | { } |
2070 | ||
7b41b173 | 2071 | static inline int security_sb_copy_data(char *orig, char *copy) |
1da177e4 LT |
2072 | { |
2073 | return 0; | |
2074 | } | |
2075 | ||
12204e24 | 2076 | static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data) |
1da177e4 LT |
2077 | { |
2078 | return 0; | |
2079 | } | |
2080 | ||
2069f457 EP |
2081 | static inline int security_sb_show_options(struct seq_file *m, |
2082 | struct super_block *sb) | |
2083 | { | |
2084 | return 0; | |
2085 | } | |
2086 | ||
7b41b173 | 2087 | static inline int security_sb_statfs(struct dentry *dentry) |
1da177e4 LT |
2088 | { |
2089 | return 0; | |
2090 | } | |
2091 | ||
7b41b173 | 2092 | static inline int security_sb_mount(char *dev_name, struct path *path, |
1da177e4 LT |
2093 | char *type, unsigned long flags, |
2094 | void *data) | |
2095 | { | |
2096 | return 0; | |
2097 | } | |
2098 | ||
7b41b173 EP |
2099 | static inline int security_sb_check_sb(struct vfsmount *mnt, |
2100 | struct path *path) | |
1da177e4 LT |
2101 | { |
2102 | return 0; | |
2103 | } | |
2104 | ||
7b41b173 | 2105 | static inline int security_sb_umount(struct vfsmount *mnt, int flags) |
1da177e4 LT |
2106 | { |
2107 | return 0; | |
2108 | } | |
2109 | ||
7b41b173 | 2110 | static inline void security_sb_umount_close(struct vfsmount *mnt) |
1da177e4 LT |
2111 | { } |
2112 | ||
7b41b173 | 2113 | static inline void security_sb_umount_busy(struct vfsmount *mnt) |
1da177e4 LT |
2114 | { } |
2115 | ||
7b41b173 | 2116 | static inline void security_sb_post_remount(struct vfsmount *mnt, |
1da177e4 LT |
2117 | unsigned long flags, void *data) |
2118 | { } | |
2119 | ||
7b41b173 EP |
2120 | static inline void security_sb_post_addmount(struct vfsmount *mnt, |
2121 | struct path *mountpoint) | |
1da177e4 LT |
2122 | { } |
2123 | ||
7b41b173 EP |
2124 | static inline int security_sb_pivotroot(struct path *old_path, |
2125 | struct path *new_path) | |
1da177e4 LT |
2126 | { |
2127 | return 0; | |
2128 | } | |
2129 | ||
7b41b173 EP |
2130 | static inline void security_sb_post_pivotroot(struct path *old_path, |
2131 | struct path *new_path) | |
1da177e4 | 2132 | { } |
e0007529 EP |
2133 | |
2134 | static inline int security_sb_set_mnt_opts(struct super_block *sb, | |
2135 | struct security_mnt_opts *opts) | |
2136 | { | |
2137 | return 0; | |
2138 | } | |
2139 | ||
2140 | static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb, | |
2141 | struct super_block *newsb) | |
2142 | { } | |
2143 | ||
2144 | static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) | |
2145 | { | |
2146 | return 0; | |
2147 | } | |
1da177e4 | 2148 | |
7b41b173 | 2149 | static inline int security_inode_alloc(struct inode *inode) |
1da177e4 LT |
2150 | { |
2151 | return 0; | |
2152 | } | |
2153 | ||
7b41b173 | 2154 | static inline void security_inode_free(struct inode *inode) |
1da177e4 | 2155 | { } |
5e41ff9e | 2156 | |
7b41b173 | 2157 | static inline int security_inode_init_security(struct inode *inode, |
5e41ff9e SS |
2158 | struct inode *dir, |
2159 | char **name, | |
2160 | void **value, | |
2161 | size_t *len) | |
2162 | { | |
2163 | return -EOPNOTSUPP; | |
2164 | } | |
7b41b173 EP |
2165 | |
2166 | static inline int security_inode_create(struct inode *dir, | |
1da177e4 LT |
2167 | struct dentry *dentry, |
2168 | int mode) | |
2169 | { | |
2170 | return 0; | |
2171 | } | |
2172 | ||
7b41b173 | 2173 | static inline int security_inode_link(struct dentry *old_dentry, |
1da177e4 LT |
2174 | struct inode *dir, |
2175 | struct dentry *new_dentry) | |
2176 | { | |
2177 | return 0; | |
2178 | } | |
2179 | ||
7b41b173 | 2180 | static inline int security_inode_unlink(struct inode *dir, |
1da177e4 LT |
2181 | struct dentry *dentry) |
2182 | { | |
2183 | return 0; | |
2184 | } | |
2185 | ||
7b41b173 | 2186 | static inline int security_inode_symlink(struct inode *dir, |
1da177e4 LT |
2187 | struct dentry *dentry, |
2188 | const char *old_name) | |
2189 | { | |
2190 | return 0; | |
2191 | } | |
2192 | ||
7b41b173 | 2193 | static inline int security_inode_mkdir(struct inode *dir, |
1da177e4 LT |
2194 | struct dentry *dentry, |
2195 | int mode) | |
2196 | { | |
2197 | return 0; | |
2198 | } | |
2199 | ||
7b41b173 | 2200 | static inline int security_inode_rmdir(struct inode *dir, |
1da177e4 LT |
2201 | struct dentry *dentry) |
2202 | { | |
2203 | return 0; | |
2204 | } | |
2205 | ||
7b41b173 | 2206 | static inline int security_inode_mknod(struct inode *dir, |
1da177e4 LT |
2207 | struct dentry *dentry, |
2208 | int mode, dev_t dev) | |
2209 | { | |
2210 | return 0; | |
2211 | } | |
2212 | ||
7b41b173 | 2213 | static inline int security_inode_rename(struct inode *old_dir, |
1da177e4 LT |
2214 | struct dentry *old_dentry, |
2215 | struct inode *new_dir, | |
2216 | struct dentry *new_dentry) | |
2217 | { | |
2218 | return 0; | |
2219 | } | |
2220 | ||
7b41b173 | 2221 | static inline int security_inode_readlink(struct dentry *dentry) |
1da177e4 LT |
2222 | { |
2223 | return 0; | |
2224 | } | |
2225 | ||
7b41b173 | 2226 | static inline int security_inode_follow_link(struct dentry *dentry, |
1da177e4 LT |
2227 | struct nameidata *nd) |
2228 | { | |
2229 | return 0; | |
2230 | } | |
2231 | ||
b77b0646 | 2232 | static inline int security_inode_permission(struct inode *inode, int mask) |
1da177e4 LT |
2233 | { |
2234 | return 0; | |
2235 | } | |
2236 | ||
7b41b173 | 2237 | static inline int security_inode_setattr(struct dentry *dentry, |
1da177e4 LT |
2238 | struct iattr *attr) |
2239 | { | |
2240 | return 0; | |
2241 | } | |
2242 | ||
7b41b173 | 2243 | static inline int security_inode_getattr(struct vfsmount *mnt, |
1da177e4 LT |
2244 | struct dentry *dentry) |
2245 | { | |
2246 | return 0; | |
2247 | } | |
2248 | ||
7b41b173 | 2249 | static inline void security_inode_delete(struct inode *inode) |
1da177e4 LT |
2250 | { } |
2251 | ||
8f0cfa52 DH |
2252 | static inline int security_inode_setxattr(struct dentry *dentry, |
2253 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2254 | { |
2255 | return cap_inode_setxattr(dentry, name, value, size, flags); | |
2256 | } | |
2257 | ||
8f0cfa52 DH |
2258 | static inline void security_inode_post_setxattr(struct dentry *dentry, |
2259 | const char *name, const void *value, size_t size, int flags) | |
1da177e4 LT |
2260 | { } |
2261 | ||
8f0cfa52 DH |
2262 | static inline int security_inode_getxattr(struct dentry *dentry, |
2263 | const char *name) | |
1da177e4 LT |
2264 | { |
2265 | return 0; | |
2266 | } | |
2267 | ||
7b41b173 | 2268 | static inline int security_inode_listxattr(struct dentry *dentry) |
1da177e4 LT |
2269 | { |
2270 | return 0; | |
2271 | } | |
2272 | ||
8f0cfa52 DH |
2273 | static inline int security_inode_removexattr(struct dentry *dentry, |
2274 | const char *name) | |
1da177e4 LT |
2275 | { |
2276 | return cap_inode_removexattr(dentry, name); | |
2277 | } | |
2278 | ||
b5376771 SH |
2279 | static inline int security_inode_need_killpriv(struct dentry *dentry) |
2280 | { | |
2281 | return cap_inode_need_killpriv(dentry); | |
2282 | } | |
2283 | ||
2284 | static inline int security_inode_killpriv(struct dentry *dentry) | |
2285 | { | |
2286 | return cap_inode_killpriv(dentry); | |
2287 | } | |
2288 | ||
42492594 | 2289 | static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) |
1da177e4 LT |
2290 | { |
2291 | return -EOPNOTSUPP; | |
2292 | } | |
2293 | ||
2294 | static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
2295 | { | |
2296 | return -EOPNOTSUPP; | |
2297 | } | |
2298 | ||
2299 | static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
2300 | { | |
2301 | return 0; | |
2302 | } | |
2303 | ||
8a076191 AD |
2304 | static inline void security_inode_getsecid(const struct inode *inode, u32 *secid) |
2305 | { | |
2306 | *secid = 0; | |
2307 | } | |
2308 | ||
7b41b173 | 2309 | static inline int security_file_permission(struct file *file, int mask) |
1da177e4 LT |
2310 | { |
2311 | return 0; | |
2312 | } | |
2313 | ||
7b41b173 | 2314 | static inline int security_file_alloc(struct file *file) |
1da177e4 LT |
2315 | { |
2316 | return 0; | |
2317 | } | |
2318 | ||
7b41b173 | 2319 | static inline void security_file_free(struct file *file) |
1da177e4 LT |
2320 | { } |
2321 | ||
7b41b173 EP |
2322 | static inline int security_file_ioctl(struct file *file, unsigned int cmd, |
2323 | unsigned long arg) | |
1da177e4 LT |
2324 | { |
2325 | return 0; | |
2326 | } | |
2327 | ||
7b41b173 EP |
2328 | static inline int security_file_mmap(struct file *file, unsigned long reqprot, |
2329 | unsigned long prot, | |
2330 | unsigned long flags, | |
2331 | unsigned long addr, | |
2332 | unsigned long addr_only) | |
1da177e4 | 2333 | { |
7c73875e | 2334 | return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only); |
1da177e4 LT |
2335 | } |
2336 | ||
7b41b173 EP |
2337 | static inline int security_file_mprotect(struct vm_area_struct *vma, |
2338 | unsigned long reqprot, | |
2339 | unsigned long prot) | |
1da177e4 LT |
2340 | { |
2341 | return 0; | |
2342 | } | |
2343 | ||
7b41b173 | 2344 | static inline int security_file_lock(struct file *file, unsigned int cmd) |
1da177e4 LT |
2345 | { |
2346 | return 0; | |
2347 | } | |
2348 | ||
7b41b173 EP |
2349 | static inline int security_file_fcntl(struct file *file, unsigned int cmd, |
2350 | unsigned long arg) | |
1da177e4 LT |
2351 | { |
2352 | return 0; | |
2353 | } | |
2354 | ||
7b41b173 | 2355 | static inline int security_file_set_fowner(struct file *file) |
1da177e4 LT |
2356 | { |
2357 | return 0; | |
2358 | } | |
2359 | ||
7b41b173 EP |
2360 | static inline int security_file_send_sigiotask(struct task_struct *tsk, |
2361 | struct fown_struct *fown, | |
2362 | int sig) | |
1da177e4 LT |
2363 | { |
2364 | return 0; | |
2365 | } | |
2366 | ||
7b41b173 | 2367 | static inline int security_file_receive(struct file *file) |
1da177e4 LT |
2368 | { |
2369 | return 0; | |
2370 | } | |
2371 | ||
745ca247 DH |
2372 | static inline int security_dentry_open(struct file *file, |
2373 | const struct cred *cred) | |
788e7dd4 YN |
2374 | { |
2375 | return 0; | |
2376 | } | |
2377 | ||
7b41b173 | 2378 | static inline int security_task_create(unsigned long clone_flags) |
1da177e4 LT |
2379 | { |
2380 | return 0; | |
2381 | } | |
2382 | ||
945af7c3 DH |
2383 | static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
2384 | { | |
2385 | return 0; | |
2386 | } | |
ee18d64c | 2387 | |
d84f4f99 DH |
2388 | static inline void security_cred_free(struct cred *cred) |
2389 | { } | |
2390 | ||
2391 | static inline int security_prepare_creds(struct cred *new, | |
2392 | const struct cred *old, | |
2393 | gfp_t gfp) | |
1da177e4 LT |
2394 | { |
2395 | return 0; | |
2396 | } | |
2397 | ||
d84f4f99 DH |
2398 | static inline void security_commit_creds(struct cred *new, |
2399 | const struct cred *old) | |
2400 | { | |
2401 | } | |
1da177e4 | 2402 | |
ee18d64c DH |
2403 | static inline void security_transfer_creds(struct cred *new, |
2404 | const struct cred *old) | |
2405 | { | |
2406 | } | |
2407 | ||
3a3b7ce9 DH |
2408 | static inline int security_kernel_act_as(struct cred *cred, u32 secid) |
2409 | { | |
2410 | return 0; | |
2411 | } | |
2412 | ||
2413 | static inline int security_kernel_create_files_as(struct cred *cred, | |
2414 | struct inode *inode) | |
2415 | { | |
2416 | return 0; | |
2417 | } | |
2418 | ||
dd8dbf2e | 2419 | static inline int security_kernel_module_request(char *kmod_name) |
9188499c EP |
2420 | { |
2421 | return 0; | |
2422 | } | |
2423 | ||
7b41b173 EP |
2424 | static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, |
2425 | int flags) | |
1da177e4 LT |
2426 | { |
2427 | return 0; | |
2428 | } | |
2429 | ||
d84f4f99 DH |
2430 | static inline int security_task_fix_setuid(struct cred *new, |
2431 | const struct cred *old, | |
2432 | int flags) | |
1da177e4 | 2433 | { |
d84f4f99 | 2434 | return cap_task_fix_setuid(new, old, flags); |
1da177e4 LT |
2435 | } |
2436 | ||
7b41b173 EP |
2437 | static inline int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, |
2438 | int flags) | |
1da177e4 LT |
2439 | { |
2440 | return 0; | |
2441 | } | |
2442 | ||
7b41b173 | 2443 | static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1da177e4 LT |
2444 | { |
2445 | return 0; | |
2446 | } | |
2447 | ||
7b41b173 | 2448 | static inline int security_task_getpgid(struct task_struct *p) |
1da177e4 LT |
2449 | { |
2450 | return 0; | |
2451 | } | |
2452 | ||
7b41b173 | 2453 | static inline int security_task_getsid(struct task_struct *p) |
1da177e4 LT |
2454 | { |
2455 | return 0; | |
2456 | } | |
2457 | ||
7b41b173 | 2458 | static inline void security_task_getsecid(struct task_struct *p, u32 *secid) |
8a076191 AD |
2459 | { |
2460 | *secid = 0; | |
2461 | } | |
f9008e4c | 2462 | |
7b41b173 | 2463 | static inline int security_task_setgroups(struct group_info *group_info) |
1da177e4 LT |
2464 | { |
2465 | return 0; | |
2466 | } | |
2467 | ||
7b41b173 | 2468 | static inline int security_task_setnice(struct task_struct *p, int nice) |
1da177e4 | 2469 | { |
b5376771 | 2470 | return cap_task_setnice(p, nice); |
1da177e4 LT |
2471 | } |
2472 | ||
7b41b173 | 2473 | static inline int security_task_setioprio(struct task_struct *p, int ioprio) |
03e68060 | 2474 | { |
b5376771 | 2475 | return cap_task_setioprio(p, ioprio); |
03e68060 JM |
2476 | } |
2477 | ||
7b41b173 | 2478 | static inline int security_task_getioprio(struct task_struct *p) |
a1836a42 DQ |
2479 | { |
2480 | return 0; | |
2481 | } | |
2482 | ||
7b41b173 EP |
2483 | static inline int security_task_setrlimit(unsigned int resource, |
2484 | struct rlimit *new_rlim) | |
1da177e4 LT |
2485 | { |
2486 | return 0; | |
2487 | } | |
2488 | ||
7b41b173 EP |
2489 | static inline int security_task_setscheduler(struct task_struct *p, |
2490 | int policy, | |
2491 | struct sched_param *lp) | |
1da177e4 | 2492 | { |
b5376771 | 2493 | return cap_task_setscheduler(p, policy, lp); |
1da177e4 LT |
2494 | } |
2495 | ||
7b41b173 | 2496 | static inline int security_task_getscheduler(struct task_struct *p) |
1da177e4 LT |
2497 | { |
2498 | return 0; | |
2499 | } | |
2500 | ||
7b41b173 | 2501 | static inline int security_task_movememory(struct task_struct *p) |
35601547 DQ |
2502 | { |
2503 | return 0; | |
2504 | } | |
2505 | ||
7b41b173 EP |
2506 | static inline int security_task_kill(struct task_struct *p, |
2507 | struct siginfo *info, int sig, | |
2508 | u32 secid) | |
1da177e4 | 2509 | { |
aedb60a6 | 2510 | return 0; |
1da177e4 LT |
2511 | } |
2512 | ||
7b41b173 | 2513 | static inline int security_task_wait(struct task_struct *p) |
1da177e4 LT |
2514 | { |
2515 | return 0; | |
2516 | } | |
2517 | ||
7b41b173 EP |
2518 | static inline int security_task_prctl(int option, unsigned long arg2, |
2519 | unsigned long arg3, | |
2520 | unsigned long arg4, | |
d84f4f99 | 2521 | unsigned long arg5) |
1da177e4 | 2522 | { |
d84f4f99 | 2523 | return cap_task_prctl(option, arg2, arg3, arg3, arg5); |
1da177e4 LT |
2524 | } |
2525 | ||
2526 | static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
2527 | { } | |
2528 | ||
7b41b173 EP |
2529 | static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, |
2530 | short flag) | |
1da177e4 LT |
2531 | { |
2532 | return 0; | |
2533 | } | |
2534 | ||
8a076191 AD |
2535 | static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
2536 | { | |
2537 | *secid = 0; | |
2538 | } | |
2539 | ||
7b41b173 | 2540 | static inline int security_msg_msg_alloc(struct msg_msg *msg) |
1da177e4 LT |
2541 | { |
2542 | return 0; | |
2543 | } | |
2544 | ||
7b41b173 | 2545 | static inline void security_msg_msg_free(struct msg_msg *msg) |
1da177e4 LT |
2546 | { } |
2547 | ||
7b41b173 | 2548 | static inline int security_msg_queue_alloc(struct msg_queue *msq) |
1da177e4 LT |
2549 | { |
2550 | return 0; | |
2551 | } | |
2552 | ||
7b41b173 | 2553 | static inline void security_msg_queue_free(struct msg_queue *msq) |
1da177e4 LT |
2554 | { } |
2555 | ||
7b41b173 EP |
2556 | static inline int security_msg_queue_associate(struct msg_queue *msq, |
2557 | int msqflg) | |
1da177e4 LT |
2558 | { |
2559 | return 0; | |
2560 | } | |
2561 | ||
7b41b173 | 2562 | static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) |
1da177e4 LT |
2563 | { |
2564 | return 0; | |
2565 | } | |
2566 | ||
7b41b173 EP |
2567 | static inline int security_msg_queue_msgsnd(struct msg_queue *msq, |
2568 | struct msg_msg *msg, int msqflg) | |
1da177e4 LT |
2569 | { |
2570 | return 0; | |
2571 | } | |
2572 | ||
7b41b173 EP |
2573 | static inline int security_msg_queue_msgrcv(struct msg_queue *msq, |
2574 | struct msg_msg *msg, | |
2575 | struct task_struct *target, | |
2576 | long type, int mode) | |
1da177e4 LT |
2577 | { |
2578 | return 0; | |
2579 | } | |
2580 | ||
7b41b173 | 2581 | static inline int security_shm_alloc(struct shmid_kernel *shp) |
1da177e4 LT |
2582 | { |
2583 | return 0; | |
2584 | } | |
2585 | ||
7b41b173 | 2586 | static inline void security_shm_free(struct shmid_kernel *shp) |
1da177e4 LT |
2587 | { } |
2588 | ||
7b41b173 EP |
2589 | static inline int security_shm_associate(struct shmid_kernel *shp, |
2590 | int shmflg) | |
1da177e4 LT |
2591 | { |
2592 | return 0; | |
2593 | } | |
2594 | ||
7b41b173 | 2595 | static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd) |
1da177e4 LT |
2596 | { |
2597 | return 0; | |
2598 | } | |
2599 | ||
7b41b173 EP |
2600 | static inline int security_shm_shmat(struct shmid_kernel *shp, |
2601 | char __user *shmaddr, int shmflg) | |
1da177e4 LT |
2602 | { |
2603 | return 0; | |
2604 | } | |
2605 | ||
7b41b173 | 2606 | static inline int security_sem_alloc(struct sem_array *sma) |
1da177e4 LT |
2607 | { |
2608 | return 0; | |
2609 | } | |
2610 | ||
7b41b173 | 2611 | static inline void security_sem_free(struct sem_array *sma) |
1da177e4 LT |
2612 | { } |
2613 | ||
7b41b173 | 2614 | static inline int security_sem_associate(struct sem_array *sma, int semflg) |
1da177e4 LT |
2615 | { |
2616 | return 0; | |
2617 | } | |
2618 | ||
7b41b173 | 2619 | static inline int security_sem_semctl(struct sem_array *sma, int cmd) |
1da177e4 LT |
2620 | { |
2621 | return 0; | |
2622 | } | |
2623 | ||
7b41b173 EP |
2624 | static inline int security_sem_semop(struct sem_array *sma, |
2625 | struct sembuf *sops, unsigned nsops, | |
2626 | int alter) | |
1da177e4 LT |
2627 | { |
2628 | return 0; | |
2629 | } | |
2630 | ||
7b41b173 | 2631 | static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode) |
1da177e4 LT |
2632 | { } |
2633 | ||
04ff9708 | 2634 | static inline int security_getprocattr(struct task_struct *p, char *name, char **value) |
1da177e4 LT |
2635 | { |
2636 | return -EINVAL; | |
2637 | } | |
2638 | ||
2639 | static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) | |
2640 | { | |
2641 | return -EINVAL; | |
2642 | } | |
2643 | ||
7b41b173 | 2644 | static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) |
1da177e4 | 2645 | { |
7b41b173 | 2646 | return cap_netlink_send(sk, skb); |
1da177e4 LT |
2647 | } |
2648 | ||
7b41b173 | 2649 | static inline int security_netlink_recv(struct sk_buff *skb, int cap) |
1da177e4 | 2650 | { |
7b41b173 | 2651 | return cap_netlink_recv(skb, cap); |
1da177e4 LT |
2652 | } |
2653 | ||
dc49c1f9 CZ |
2654 | static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
2655 | { | |
2656 | return -EOPNOTSUPP; | |
2657 | } | |
2658 | ||
7bf570dc | 2659 | static inline int security_secctx_to_secid(const char *secdata, |
63cb3449 DH |
2660 | u32 seclen, |
2661 | u32 *secid) | |
2662 | { | |
2663 | return -EOPNOTSUPP; | |
2664 | } | |
2665 | ||
dc49c1f9 CZ |
2666 | static inline void security_release_secctx(char *secdata, u32 seclen) |
2667 | { | |
dc49c1f9 | 2668 | } |
1ee65e37 DQ |
2669 | |
2670 | static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) | |
2671 | { | |
2672 | return -EOPNOTSUPP; | |
2673 | } | |
2674 | static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
2675 | { | |
2676 | return -EOPNOTSUPP; | |
2677 | } | |
2678 | static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
2679 | { | |
2680 | return -EOPNOTSUPP; | |
2681 | } | |
1da177e4 LT |
2682 | #endif /* CONFIG_SECURITY */ |
2683 | ||
2684 | #ifdef CONFIG_SECURITY_NETWORK | |
4237c75c | 2685 | |
20510f2f JM |
2686 | int security_unix_stream_connect(struct socket *sock, struct socket *other, |
2687 | struct sock *newsk); | |
2688 | int security_unix_may_send(struct socket *sock, struct socket *other); | |
2689 | int security_socket_create(int family, int type, int protocol, int kern); | |
2690 | int security_socket_post_create(struct socket *sock, int family, | |
2691 | int type, int protocol, int kern); | |
2692 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); | |
2693 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); | |
2694 | int security_socket_listen(struct socket *sock, int backlog); | |
2695 | int security_socket_accept(struct socket *sock, struct socket *newsock); | |
20510f2f JM |
2696 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); |
2697 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
2698 | int size, int flags); | |
2699 | int security_socket_getsockname(struct socket *sock); | |
2700 | int security_socket_getpeername(struct socket *sock); | |
2701 | int security_socket_getsockopt(struct socket *sock, int level, int optname); | |
2702 | int security_socket_setsockopt(struct socket *sock, int level, int optname); | |
2703 | int security_socket_shutdown(struct socket *sock, int how); | |
2704 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); | |
2705 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
2706 | int __user *optlen, unsigned len); | |
2707 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); | |
2708 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority); | |
2709 | void security_sk_free(struct sock *sk); | |
2710 | void security_sk_clone(const struct sock *sk, struct sock *newsk); | |
2711 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl); | |
2712 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); | |
2713 | void security_sock_graft(struct sock*sk, struct socket *parent); | |
2714 | int security_inet_conn_request(struct sock *sk, | |
2715 | struct sk_buff *skb, struct request_sock *req); | |
2716 | void security_inet_csk_clone(struct sock *newsk, | |
2717 | const struct request_sock *req); | |
2718 | void security_inet_conn_established(struct sock *sk, | |
2719 | struct sk_buff *skb); | |
2b980dbd PM |
2720 | int security_tun_dev_create(void); |
2721 | void security_tun_dev_post_create(struct sock *sk); | |
2722 | int security_tun_dev_attach(struct sock *sk); | |
6b877699 | 2723 | |
1da177e4 | 2724 | #else /* CONFIG_SECURITY_NETWORK */ |
7b41b173 EP |
2725 | static inline int security_unix_stream_connect(struct socket *sock, |
2726 | struct socket *other, | |
2727 | struct sock *newsk) | |
1da177e4 LT |
2728 | { |
2729 | return 0; | |
2730 | } | |
2731 | ||
7b41b173 EP |
2732 | static inline int security_unix_may_send(struct socket *sock, |
2733 | struct socket *other) | |
1da177e4 LT |
2734 | { |
2735 | return 0; | |
2736 | } | |
2737 | ||
7b41b173 EP |
2738 | static inline int security_socket_create(int family, int type, |
2739 | int protocol, int kern) | |
1da177e4 LT |
2740 | { |
2741 | return 0; | |
2742 | } | |
2743 | ||
7b41b173 | 2744 | static inline int security_socket_post_create(struct socket *sock, |
7420ed23 VY |
2745 | int family, |
2746 | int type, | |
2747 | int protocol, int kern) | |
1da177e4 | 2748 | { |
7420ed23 | 2749 | return 0; |
1da177e4 LT |
2750 | } |
2751 | ||
7b41b173 EP |
2752 | static inline int security_socket_bind(struct socket *sock, |
2753 | struct sockaddr *address, | |
1da177e4 LT |
2754 | int addrlen) |
2755 | { | |
2756 | return 0; | |
2757 | } | |
2758 | ||
7b41b173 EP |
2759 | static inline int security_socket_connect(struct socket *sock, |
2760 | struct sockaddr *address, | |
1da177e4 LT |
2761 | int addrlen) |
2762 | { | |
2763 | return 0; | |
2764 | } | |
2765 | ||
7b41b173 | 2766 | static inline int security_socket_listen(struct socket *sock, int backlog) |
1da177e4 LT |
2767 | { |
2768 | return 0; | |
2769 | } | |
2770 | ||
7b41b173 EP |
2771 | static inline int security_socket_accept(struct socket *sock, |
2772 | struct socket *newsock) | |
1da177e4 LT |
2773 | { |
2774 | return 0; | |
2775 | } | |
2776 | ||
7b41b173 EP |
2777 | static inline int security_socket_sendmsg(struct socket *sock, |
2778 | struct msghdr *msg, int size) | |
1da177e4 LT |
2779 | { |
2780 | return 0; | |
2781 | } | |
2782 | ||
7b41b173 EP |
2783 | static inline int security_socket_recvmsg(struct socket *sock, |
2784 | struct msghdr *msg, int size, | |
1da177e4 LT |
2785 | int flags) |
2786 | { | |
2787 | return 0; | |
2788 | } | |
2789 | ||
7b41b173 | 2790 | static inline int security_socket_getsockname(struct socket *sock) |
1da177e4 LT |
2791 | { |
2792 | return 0; | |
2793 | } | |
2794 | ||
7b41b173 | 2795 | static inline int security_socket_getpeername(struct socket *sock) |
1da177e4 LT |
2796 | { |
2797 | return 0; | |
2798 | } | |
2799 | ||
7b41b173 | 2800 | static inline int security_socket_getsockopt(struct socket *sock, |
1da177e4 LT |
2801 | int level, int optname) |
2802 | { | |
2803 | return 0; | |
2804 | } | |
2805 | ||
7b41b173 | 2806 | static inline int security_socket_setsockopt(struct socket *sock, |
1da177e4 LT |
2807 | int level, int optname) |
2808 | { | |
2809 | return 0; | |
2810 | } | |
2811 | ||
7b41b173 | 2812 | static inline int security_socket_shutdown(struct socket *sock, int how) |
1da177e4 LT |
2813 | { |
2814 | return 0; | |
2815 | } | |
7b41b173 EP |
2816 | static inline int security_sock_rcv_skb(struct sock *sk, |
2817 | struct sk_buff *skb) | |
1da177e4 LT |
2818 | { |
2819 | return 0; | |
2820 | } | |
2821 | ||
2c7946a7 CZ |
2822 | static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, |
2823 | int __user *optlen, unsigned len) | |
2824 | { | |
2825 | return -ENOPROTOOPT; | |
2826 | } | |
2827 | ||
dc49c1f9 | 2828 | static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) |
1da177e4 LT |
2829 | { |
2830 | return -ENOPROTOOPT; | |
2831 | } | |
2832 | ||
dd0fc66f | 2833 | static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) |
1da177e4 LT |
2834 | { |
2835 | return 0; | |
2836 | } | |
2837 | ||
2838 | static inline void security_sk_free(struct sock *sk) | |
892c141e VY |
2839 | { |
2840 | } | |
2841 | ||
2842 | static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1da177e4 LT |
2843 | { |
2844 | } | |
df71837d | 2845 | |
beb8d13b | 2846 | static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl) |
df71837d | 2847 | { |
df71837d | 2848 | } |
4237c75c VY |
2849 | |
2850 | static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
2851 | { | |
2852 | } | |
2853 | ||
7b41b173 | 2854 | static inline void security_sock_graft(struct sock *sk, struct socket *parent) |
4237c75c VY |
2855 | { |
2856 | } | |
2857 | ||
2858 | static inline int security_inet_conn_request(struct sock *sk, | |
2859 | struct sk_buff *skb, struct request_sock *req) | |
2860 | { | |
2861 | return 0; | |
2862 | } | |
2863 | ||
2864 | static inline void security_inet_csk_clone(struct sock *newsk, | |
2865 | const struct request_sock *req) | |
2866 | { | |
2867 | } | |
6b877699 VY |
2868 | |
2869 | static inline void security_inet_conn_established(struct sock *sk, | |
2870 | struct sk_buff *skb) | |
2871 | { | |
2872 | } | |
2b980dbd PM |
2873 | |
2874 | static inline int security_tun_dev_create(void) | |
2875 | { | |
2876 | return 0; | |
2877 | } | |
2878 | ||
2879 | static inline void security_tun_dev_post_create(struct sock *sk) | |
2880 | { | |
2881 | } | |
2882 | ||
2883 | static inline int security_tun_dev_attach(struct sock *sk) | |
2884 | { | |
2885 | return 0; | |
2886 | } | |
1da177e4 LT |
2887 | #endif /* CONFIG_SECURITY_NETWORK */ |
2888 | ||
df71837d | 2889 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
beb8d13b | 2890 | |
03e1ad7b PM |
2891 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx); |
2892 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); | |
2893 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); | |
2894 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); | |
20510f2f JM |
2895 | int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); |
2896 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2897 | struct xfrm_sec_ctx *polsec, u32 secid); | |
2898 | int security_xfrm_state_delete(struct xfrm_state *x); | |
2899 | void security_xfrm_state_free(struct xfrm_state *x); | |
03e1ad7b | 2900 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
20510f2f JM |
2901 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, |
2902 | struct xfrm_policy *xp, struct flowi *fl); | |
2903 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); | |
2904 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl); | |
beb8d13b | 2905 | |
df71837d | 2906 | #else /* CONFIG_SECURITY_NETWORK_XFRM */ |
20510f2f | 2907 | |
03e1ad7b | 2908 | static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) |
df71837d TJ |
2909 | { |
2910 | return 0; | |
2911 | } | |
2912 | ||
03e1ad7b | 2913 | static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) |
df71837d TJ |
2914 | { |
2915 | return 0; | |
2916 | } | |
2917 | ||
03e1ad7b | 2918 | static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
df71837d TJ |
2919 | { |
2920 | } | |
2921 | ||
03e1ad7b | 2922 | static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
c8c05a8e CZ |
2923 | { |
2924 | return 0; | |
2925 | } | |
2926 | ||
e0d1caa7 VY |
2927 | static inline int security_xfrm_state_alloc(struct xfrm_state *x, |
2928 | struct xfrm_user_sec_ctx *sec_ctx) | |
2929 | { | |
2930 | return 0; | |
2931 | } | |
2932 | ||
2933 | static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2934 | struct xfrm_sec_ctx *polsec, u32 secid) | |
df71837d TJ |
2935 | { |
2936 | return 0; | |
2937 | } | |
2938 | ||
2939 | static inline void security_xfrm_state_free(struct xfrm_state *x) | |
2940 | { | |
2941 | } | |
2942 | ||
6f68dc37 | 2943 | static inline int security_xfrm_state_delete(struct xfrm_state *x) |
c8c05a8e CZ |
2944 | { |
2945 | return 0; | |
2946 | } | |
2947 | ||
03e1ad7b | 2948 | static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
df71837d TJ |
2949 | { |
2950 | return 0; | |
2951 | } | |
e0d1caa7 VY |
2952 | |
2953 | static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
2954 | struct xfrm_policy *xp, struct flowi *fl) | |
2955 | { | |
2956 | return 1; | |
2957 | } | |
2958 | ||
beb8d13b | 2959 | static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) |
e0d1caa7 VY |
2960 | { |
2961 | return 0; | |
2962 | } | |
2963 | ||
beb8d13b VY |
2964 | static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) |
2965 | { | |
2966 | } | |
2967 | ||
df71837d TJ |
2968 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
2969 | ||
be6d3e56 KT |
2970 | #ifdef CONFIG_SECURITY_PATH |
2971 | int security_path_unlink(struct path *dir, struct dentry *dentry); | |
2972 | int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode); | |
2973 | int security_path_rmdir(struct path *dir, struct dentry *dentry); | |
2974 | int security_path_mknod(struct path *dir, struct dentry *dentry, int mode, | |
2975 | unsigned int dev); | |
2976 | int security_path_truncate(struct path *path, loff_t length, | |
2977 | unsigned int time_attrs); | |
2978 | int security_path_symlink(struct path *dir, struct dentry *dentry, | |
2979 | const char *old_name); | |
2980 | int security_path_link(struct dentry *old_dentry, struct path *new_dir, | |
2981 | struct dentry *new_dentry); | |
2982 | int security_path_rename(struct path *old_dir, struct dentry *old_dentry, | |
2983 | struct path *new_dir, struct dentry *new_dentry); | |
89eda068 TH |
2984 | int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt, |
2985 | mode_t mode); | |
2986 | int security_path_chown(struct path *path, uid_t uid, gid_t gid); | |
8b8efb44 | 2987 | int security_path_chroot(struct path *path); |
be6d3e56 KT |
2988 | #else /* CONFIG_SECURITY_PATH */ |
2989 | static inline int security_path_unlink(struct path *dir, struct dentry *dentry) | |
2990 | { | |
2991 | return 0; | |
2992 | } | |
2993 | ||
2994 | static inline int security_path_mkdir(struct path *dir, struct dentry *dentry, | |
2995 | int mode) | |
2996 | { | |
2997 | return 0; | |
2998 | } | |
2999 | ||
3000 | static inline int security_path_rmdir(struct path *dir, struct dentry *dentry) | |
3001 | { | |
3002 | return 0; | |
3003 | } | |
3004 | ||
3005 | static inline int security_path_mknod(struct path *dir, struct dentry *dentry, | |
3006 | int mode, unsigned int dev) | |
3007 | { | |
3008 | return 0; | |
3009 | } | |
3010 | ||
3011 | static inline int security_path_truncate(struct path *path, loff_t length, | |
3012 | unsigned int time_attrs) | |
3013 | { | |
3014 | return 0; | |
3015 | } | |
3016 | ||
3017 | static inline int security_path_symlink(struct path *dir, struct dentry *dentry, | |
3018 | const char *old_name) | |
3019 | { | |
3020 | return 0; | |
3021 | } | |
3022 | ||
3023 | static inline int security_path_link(struct dentry *old_dentry, | |
3024 | struct path *new_dir, | |
3025 | struct dentry *new_dentry) | |
3026 | { | |
3027 | return 0; | |
3028 | } | |
3029 | ||
3030 | static inline int security_path_rename(struct path *old_dir, | |
3031 | struct dentry *old_dentry, | |
3032 | struct path *new_dir, | |
3033 | struct dentry *new_dentry) | |
3034 | { | |
3035 | return 0; | |
3036 | } | |
89eda068 TH |
3037 | |
3038 | static inline int security_path_chmod(struct dentry *dentry, | |
3039 | struct vfsmount *mnt, | |
3040 | mode_t mode) | |
3041 | { | |
3042 | return 0; | |
3043 | } | |
3044 | ||
3045 | static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid) | |
3046 | { | |
3047 | return 0; | |
3048 | } | |
8b8efb44 TH |
3049 | |
3050 | static inline int security_path_chroot(struct path *path) | |
3051 | { | |
3052 | return 0; | |
3053 | } | |
be6d3e56 KT |
3054 | #endif /* CONFIG_SECURITY_PATH */ |
3055 | ||
29db9190 DH |
3056 | #ifdef CONFIG_KEYS |
3057 | #ifdef CONFIG_SECURITY | |
29db9190 | 3058 | |
d84f4f99 | 3059 | int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); |
20510f2f JM |
3060 | void security_key_free(struct key *key); |
3061 | int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 3062 | const struct cred *cred, key_perm_t perm); |
70a5bb72 | 3063 | int security_key_getsecurity(struct key *key, char **_buffer); |
ee18d64c DH |
3064 | int security_key_session_to_parent(const struct cred *cred, |
3065 | const struct cred *parent_cred, | |
3066 | struct key *key); | |
29db9190 DH |
3067 | |
3068 | #else | |
3069 | ||
d720024e | 3070 | static inline int security_key_alloc(struct key *key, |
d84f4f99 | 3071 | const struct cred *cred, |
7e047ef5 | 3072 | unsigned long flags) |
29db9190 DH |
3073 | { |
3074 | return 0; | |
3075 | } | |
3076 | ||
3077 | static inline void security_key_free(struct key *key) | |
3078 | { | |
3079 | } | |
3080 | ||
3081 | static inline int security_key_permission(key_ref_t key_ref, | |
d84f4f99 | 3082 | const struct cred *cred, |
29db9190 DH |
3083 | key_perm_t perm) |
3084 | { | |
3085 | return 0; | |
3086 | } | |
3087 | ||
70a5bb72 DH |
3088 | static inline int security_key_getsecurity(struct key *key, char **_buffer) |
3089 | { | |
3090 | *_buffer = NULL; | |
3091 | return 0; | |
3092 | } | |
3093 | ||
ee18d64c DH |
3094 | static inline int security_key_session_to_parent(const struct cred *cred, |
3095 | const struct cred *parent_cred, | |
be1d6a5f DH |
3096 | struct key *key) |
3097 | { | |
3098 | return 0; | |
3099 | } | |
ee18d64c | 3100 | |
29db9190 DH |
3101 | #endif |
3102 | #endif /* CONFIG_KEYS */ | |
3103 | ||
03d37d25 AD |
3104 | #ifdef CONFIG_AUDIT |
3105 | #ifdef CONFIG_SECURITY | |
3106 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule); | |
3107 | int security_audit_rule_known(struct audit_krule *krule); | |
3108 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
3109 | struct audit_context *actx); | |
3110 | void security_audit_rule_free(void *lsmrule); | |
3111 | ||
3112 | #else | |
3113 | ||
3114 | static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, | |
3115 | void **lsmrule) | |
3116 | { | |
3117 | return 0; | |
3118 | } | |
3119 | ||
3120 | static inline int security_audit_rule_known(struct audit_krule *krule) | |
3121 | { | |
3122 | return 0; | |
3123 | } | |
3124 | ||
3125 | static inline int security_audit_rule_match(u32 secid, u32 field, u32 op, | |
3126 | void *lsmrule, struct audit_context *actx) | |
3127 | { | |
3128 | return 0; | |
3129 | } | |
3130 | ||
3131 | static inline void security_audit_rule_free(void *lsmrule) | |
3132 | { } | |
3133 | ||
3134 | #endif /* CONFIG_SECURITY */ | |
3135 | #endif /* CONFIG_AUDIT */ | |
3136 | ||
da31894e EP |
3137 | #ifdef CONFIG_SECURITYFS |
3138 | ||
3139 | extern struct dentry *securityfs_create_file(const char *name, mode_t mode, | |
3140 | struct dentry *parent, void *data, | |
3141 | const struct file_operations *fops); | |
3142 | extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); | |
3143 | extern void securityfs_remove(struct dentry *dentry); | |
3144 | ||
3145 | #else /* CONFIG_SECURITYFS */ | |
3146 | ||
3147 | static inline struct dentry *securityfs_create_dir(const char *name, | |
3148 | struct dentry *parent) | |
3149 | { | |
3150 | return ERR_PTR(-ENODEV); | |
3151 | } | |
3152 | ||
3153 | static inline struct dentry *securityfs_create_file(const char *name, | |
3154 | mode_t mode, | |
3155 | struct dentry *parent, | |
3156 | void *data, | |
3157 | const struct file_operations *fops) | |
3158 | { | |
3159 | return ERR_PTR(-ENODEV); | |
3160 | } | |
3161 | ||
3162 | static inline void securityfs_remove(struct dentry *dentry) | |
3163 | {} | |
3164 | ||
3165 | #endif | |
3166 | ||
3d544f41 PE |
3167 | #ifdef CONFIG_SECURITY |
3168 | ||
3169 | static inline char *alloc_secdata(void) | |
3170 | { | |
3171 | return (char *)get_zeroed_page(GFP_KERNEL); | |
3172 | } | |
3173 | ||
3174 | static inline void free_secdata(void *secdata) | |
3175 | { | |
3176 | free_page((unsigned long)secdata); | |
3177 | } | |
3178 | ||
3179 | #else | |
3180 | ||
3181 | static inline char *alloc_secdata(void) | |
3182 | { | |
3183 | return (char *)1; | |
3184 | } | |
3185 | ||
3186 | static inline void free_secdata(void *secdata) | |
3187 | { } | |
3188 | #endif /* CONFIG_SECURITY */ | |
3189 | ||
1da177e4 LT |
3190 | #endif /* ! __LINUX_SECURITY_H */ |
3191 |