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1 | /* |
2 | * Security plug functions |
3 | * |
4 | * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> |
5 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> |
6 | * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by |
10 | * the Free Software Foundation; either version 2 of the License, or |
11 | * (at your option) any later version. |
12 | */ |
13 | |
14 | #include <linux/capability.h> |
15 | #include <linux/module.h> |
16 | #include <linux/init.h> |
17 | #include <linux/kernel.h> |
18 | #include <linux/security.h> |
19 | #include <linux/integrity.h> |
20 | #include <linux/ima.h> |
21 | #include <linux/evm.h> |
22 | #include <linux/fsnotify.h> |
23 | #include <linux/mman.h> |
24 | #include <linux/mount.h> |
25 | #include <linux/personality.h> |
26 | #include <linux/backing-dev.h> |
27 | #include <net/flow.h> |
28 | |
29 | #define MAX_LSM_EVM_XATTR 2 |
30 | |
31 | /* Boot-time LSM user choice */ |
32 | static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = |
33 | CONFIG_DEFAULT_SECURITY; |
34 | |
35 | static struct security_operations *security_ops; |
36 | static struct security_operations default_security_ops = { |
37 | .name = "default", |
38 | }; |
39 | |
40 | static inline int __init verify(struct security_operations *ops) |
41 | { |
42 | /* verify the security_operations structure exists */ |
43 | if (!ops) |
44 | return -EINVAL; |
45 | security_fixup_ops(ops); |
46 | return 0; |
47 | } |
48 | |
49 | static void __init do_security_initcalls(void) |
50 | { |
51 | initcall_t *call; |
52 | call = __security_initcall_start; |
53 | while (call < __security_initcall_end) { |
54 | (*call) (); |
55 | call++; |
56 | } |
57 | } |
58 | |
59 | /** |
60 | * security_init - initializes the security framework |
61 | * |
62 | * This should be called early in the kernel initialization sequence. |
63 | */ |
64 | int __init security_init(void) |
65 | { |
66 | printk(KERN_INFO "Security Framework initialized\n"); |
67 | |
68 | security_fixup_ops(&default_security_ops); |
69 | security_ops = &default_security_ops; |
70 | do_security_initcalls(); |
71 | |
72 | return 0; |
73 | } |
74 | |
75 | void reset_security_ops(void) |
76 | { |
77 | security_ops = &default_security_ops; |
78 | } |
79 | |
80 | /* Save user chosen LSM */ |
81 | static int __init choose_lsm(char *str) |
82 | { |
83 | strncpy(chosen_lsm, str, SECURITY_NAME_MAX); |
84 | return 1; |
85 | } |
86 | __setup("security=", choose_lsm); |
87 | |
88 | /** |
89 | * security_module_enable - Load given security module on boot ? |
90 | * @ops: a pointer to the struct security_operations that is to be checked. |
91 | * |
92 | * Each LSM must pass this method before registering its own operations |
93 | * to avoid security registration races. This method may also be used |
94 | * to check if your LSM is currently loaded during kernel initialization. |
95 | * |
96 | * Return true if: |
97 | * -The passed LSM is the one chosen by user at boot time, |
98 | * -or the passed LSM is configured as the default and the user did not |
99 | * choose an alternate LSM at boot time. |
100 | * Otherwise, return false. |
101 | */ |
102 | int __init security_module_enable(struct security_operations *ops) |
103 | { |
104 | return !strcmp(ops->name, chosen_lsm); |
105 | } |
106 | |
107 | /** |
108 | * register_security - registers a security framework with the kernel |
109 | * @ops: a pointer to the struct security_options that is to be registered |
110 | * |
111 | * This function allows a security module to register itself with the |
112 | * kernel security subsystem. Some rudimentary checking is done on the @ops |
113 | * value passed to this function. You'll need to check first if your LSM |
114 | * is allowed to register its @ops by calling security_module_enable(@ops). |
115 | * |
116 | * If there is already a security module registered with the kernel, |
117 | * an error will be returned. Otherwise %0 is returned on success. |
118 | */ |
119 | int __init register_security(struct security_operations *ops) |
120 | { |
121 | if (verify(ops)) { |
122 | printk(KERN_DEBUG "%s could not verify " |
123 | "security_operations structure.\n", __func__); |
124 | return -EINVAL; |
125 | } |
126 | |
127 | if (security_ops != &default_security_ops) |
128 | return -EAGAIN; |
129 | |
130 | security_ops = ops; |
131 | |
132 | return 0; |
133 | } |
134 | |
135 | /* Security operations */ |
136 | |
137 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode) |
138 | { |
139 | #ifdef CONFIG_SECURITY_YAMA_STACKED |
140 | int rc; |
141 | rc = yama_ptrace_access_check(child, mode); |
142 | if (rc) |
143 | return rc; |
144 | #endif |
145 | return security_ops->ptrace_access_check(child, mode); |
146 | } |
147 | |
148 | int security_ptrace_traceme(struct task_struct *parent) |
149 | { |
150 | #ifdef CONFIG_SECURITY_YAMA_STACKED |
151 | int rc; |
152 | rc = yama_ptrace_traceme(parent); |
153 | if (rc) |
154 | return rc; |
155 | #endif |
156 | return security_ops->ptrace_traceme(parent); |
157 | } |
158 | |
159 | int security_capget(struct task_struct *target, |
160 | kernel_cap_t *effective, |
161 | kernel_cap_t *inheritable, |
162 | kernel_cap_t *permitted) |
163 | { |
164 | return security_ops->capget(target, effective, inheritable, permitted); |
165 | } |
166 | |
167 | int security_capset(struct cred *new, const struct cred *old, |
168 | const kernel_cap_t *effective, |
169 | const kernel_cap_t *inheritable, |
170 | const kernel_cap_t *permitted) |
171 | { |
172 | return security_ops->capset(new, old, |
173 | effective, inheritable, permitted); |
174 | } |
175 | |
176 | int security_capable(const struct cred *cred, struct user_namespace *ns, |
177 | int cap) |
178 | { |
179 | return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT); |
180 | } |
181 | |
182 | int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, |
183 | int cap) |
184 | { |
185 | return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT); |
186 | } |
187 | |
188 | int security_quotactl(int cmds, int type, int id, struct super_block *sb) |
189 | { |
190 | return security_ops->quotactl(cmds, type, id, sb); |
191 | } |
192 | |
193 | int security_quota_on(struct dentry *dentry) |
194 | { |
195 | return security_ops->quota_on(dentry); |
196 | } |
197 | |
198 | int security_syslog(int type) |
199 | { |
200 | return security_ops->syslog(type); |
201 | } |
202 | |
203 | int security_settime(const struct timespec *ts, const struct timezone *tz) |
204 | { |
205 | return security_ops->settime(ts, tz); |
206 | } |
207 | |
208 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
209 | { |
210 | return security_ops->vm_enough_memory(mm, pages); |
211 | } |
212 | |
213 | int security_bprm_set_creds(struct linux_binprm *bprm) |
214 | { |
215 | return security_ops->bprm_set_creds(bprm); |
216 | } |
217 | |
218 | int security_bprm_check(struct linux_binprm *bprm) |
219 | { |
220 | int ret; |
221 | |
222 | ret = security_ops->bprm_check_security(bprm); |
223 | if (ret) |
224 | return ret; |
225 | return ima_bprm_check(bprm); |
226 | } |
227 | |
228 | void security_bprm_committing_creds(struct linux_binprm *bprm) |
229 | { |
230 | security_ops->bprm_committing_creds(bprm); |
231 | } |
232 | |
233 | void security_bprm_committed_creds(struct linux_binprm *bprm) |
234 | { |
235 | security_ops->bprm_committed_creds(bprm); |
236 | } |
237 | |
238 | int security_bprm_secureexec(struct linux_binprm *bprm) |
239 | { |
240 | return security_ops->bprm_secureexec(bprm); |
241 | } |
242 | |
243 | int security_sb_alloc(struct super_block *sb) |
244 | { |
245 | return security_ops->sb_alloc_security(sb); |
246 | } |
247 | |
248 | void security_sb_free(struct super_block *sb) |
249 | { |
250 | security_ops->sb_free_security(sb); |
251 | } |
252 | |
253 | int security_sb_copy_data(char *orig, char *copy) |
254 | { |
255 | return security_ops->sb_copy_data(orig, copy); |
256 | } |
257 | EXPORT_SYMBOL(security_sb_copy_data); |
258 | |
259 | int security_sb_remount(struct super_block *sb, void *data) |
260 | { |
261 | return security_ops->sb_remount(sb, data); |
262 | } |
263 | |
264 | int security_sb_kern_mount(struct super_block *sb, int flags, void *data) |
265 | { |
266 | return security_ops->sb_kern_mount(sb, flags, data); |
267 | } |
268 | |
269 | int security_sb_show_options(struct seq_file *m, struct super_block *sb) |
270 | { |
271 | return security_ops->sb_show_options(m, sb); |
272 | } |
273 | |
274 | int security_sb_statfs(struct dentry *dentry) |
275 | { |
276 | return security_ops->sb_statfs(dentry); |
277 | } |
278 | |
279 | int security_sb_mount(const char *dev_name, struct path *path, |
280 | const char *type, unsigned long flags, void *data) |
281 | { |
282 | return security_ops->sb_mount(dev_name, path, type, flags, data); |
283 | } |
284 | |
285 | int security_sb_umount(struct vfsmount *mnt, int flags) |
286 | { |
287 | return security_ops->sb_umount(mnt, flags); |
288 | } |
289 | |
290 | int security_sb_pivotroot(struct path *old_path, struct path *new_path) |
291 | { |
292 | return security_ops->sb_pivotroot(old_path, new_path); |
293 | } |
294 | |
295 | int security_sb_set_mnt_opts(struct super_block *sb, |
296 | struct security_mnt_opts *opts) |
297 | { |
298 | return security_ops->sb_set_mnt_opts(sb, opts); |
299 | } |
300 | EXPORT_SYMBOL(security_sb_set_mnt_opts); |
301 | |
302 | void security_sb_clone_mnt_opts(const struct super_block *oldsb, |
303 | struct super_block *newsb) |
304 | { |
305 | security_ops->sb_clone_mnt_opts(oldsb, newsb); |
306 | } |
307 | EXPORT_SYMBOL(security_sb_clone_mnt_opts); |
308 | |
309 | int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) |
310 | { |
311 | return security_ops->sb_parse_opts_str(options, opts); |
312 | } |
313 | EXPORT_SYMBOL(security_sb_parse_opts_str); |
314 | |
315 | int security_inode_alloc(struct inode *inode) |
316 | { |
317 | inode->i_security = NULL; |
318 | return security_ops->inode_alloc_security(inode); |
319 | } |
320 | |
321 | void security_inode_free(struct inode *inode) |
322 | { |
323 | integrity_inode_free(inode); |
324 | security_ops->inode_free_security(inode); |
325 | } |
326 | |
327 | int security_inode_init_security(struct inode *inode, struct inode *dir, |
328 | const struct qstr *qstr, |
329 | const initxattrs initxattrs, void *fs_data) |
330 | { |
331 | struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1]; |
332 | struct xattr *lsm_xattr, *evm_xattr, *xattr; |
333 | int ret; |
334 | |
335 | if (unlikely(IS_PRIVATE(inode))) |
336 | return 0; |
337 | |
338 | memset(new_xattrs, 0, sizeof new_xattrs); |
339 | if (!initxattrs) |
340 | return security_ops->inode_init_security(inode, dir, qstr, |
341 | NULL, NULL, NULL); |
342 | lsm_xattr = new_xattrs; |
343 | ret = security_ops->inode_init_security(inode, dir, qstr, |
344 | &lsm_xattr->name, |
345 | &lsm_xattr->value, |
346 | &lsm_xattr->value_len); |
347 | if (ret) |
348 | goto out; |
349 | |
350 | evm_xattr = lsm_xattr + 1; |
351 | ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr); |
352 | if (ret) |
353 | goto out; |
354 | ret = initxattrs(inode, new_xattrs, fs_data); |
355 | out: |
356 | for (xattr = new_xattrs; xattr->name != NULL; xattr++) { |
357 | kfree(xattr->name); |
358 | kfree(xattr->value); |
359 | } |
360 | return (ret == -EOPNOTSUPP) ? 0 : ret; |
361 | } |
362 | EXPORT_SYMBOL(security_inode_init_security); |
363 | |
364 | int security_old_inode_init_security(struct inode *inode, struct inode *dir, |
365 | const struct qstr *qstr, char **name, |
366 | void **value, size_t *len) |
367 | { |
368 | if (unlikely(IS_PRIVATE(inode))) |
369 | return -EOPNOTSUPP; |
370 | return security_ops->inode_init_security(inode, dir, qstr, name, value, |
371 | len); |
372 | } |
373 | EXPORT_SYMBOL(security_old_inode_init_security); |
374 | |
375 | #ifdef CONFIG_SECURITY_PATH |
376 | int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode, |
377 | unsigned int dev) |
378 | { |
379 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
380 | return 0; |
381 | return security_ops->path_mknod(dir, dentry, mode, dev); |
382 | } |
383 | EXPORT_SYMBOL(security_path_mknod); |
384 | |
385 | int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode) |
386 | { |
387 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
388 | return 0; |
389 | return security_ops->path_mkdir(dir, dentry, mode); |
390 | } |
391 | EXPORT_SYMBOL(security_path_mkdir); |
392 | |
393 | int security_path_rmdir(struct path *dir, struct dentry *dentry) |
394 | { |
395 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
396 | return 0; |
397 | return security_ops->path_rmdir(dir, dentry); |
398 | } |
399 | |
400 | int security_path_unlink(struct path *dir, struct dentry *dentry) |
401 | { |
402 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
403 | return 0; |
404 | return security_ops->path_unlink(dir, dentry); |
405 | } |
406 | EXPORT_SYMBOL(security_path_unlink); |
407 | |
408 | int security_path_symlink(struct path *dir, struct dentry *dentry, |
409 | const char *old_name) |
410 | { |
411 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
412 | return 0; |
413 | return security_ops->path_symlink(dir, dentry, old_name); |
414 | } |
415 | |
416 | int security_path_link(struct dentry *old_dentry, struct path *new_dir, |
417 | struct dentry *new_dentry) |
418 | { |
419 | if (unlikely(IS_PRIVATE(old_dentry->d_inode))) |
420 | return 0; |
421 | return security_ops->path_link(old_dentry, new_dir, new_dentry); |
422 | } |
423 | |
424 | int security_path_rename(struct path *old_dir, struct dentry *old_dentry, |
425 | struct path *new_dir, struct dentry *new_dentry) |
426 | { |
427 | if (unlikely(IS_PRIVATE(old_dentry->d_inode) || |
428 | (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) |
429 | return 0; |
430 | return security_ops->path_rename(old_dir, old_dentry, new_dir, |
431 | new_dentry); |
432 | } |
433 | EXPORT_SYMBOL(security_path_rename); |
434 | |
435 | int security_path_truncate(struct path *path) |
436 | { |
437 | if (unlikely(IS_PRIVATE(path->dentry->d_inode))) |
438 | return 0; |
439 | return security_ops->path_truncate(path); |
440 | } |
441 | |
442 | int security_path_chmod(struct path *path, umode_t mode) |
443 | { |
444 | if (unlikely(IS_PRIVATE(path->dentry->d_inode))) |
445 | return 0; |
446 | return security_ops->path_chmod(path, mode); |
447 | } |
448 | |
449 | int security_path_chown(struct path *path, kuid_t uid, kgid_t gid) |
450 | { |
451 | if (unlikely(IS_PRIVATE(path->dentry->d_inode))) |
452 | return 0; |
453 | return security_ops->path_chown(path, uid, gid); |
454 | } |
455 | |
456 | int security_path_chroot(struct path *path) |
457 | { |
458 | return security_ops->path_chroot(path); |
459 | } |
460 | #endif |
461 | |
462 | int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode) |
463 | { |
464 | if (unlikely(IS_PRIVATE(dir))) |
465 | return 0; |
466 | return security_ops->inode_create(dir, dentry, mode); |
467 | } |
468 | EXPORT_SYMBOL_GPL(security_inode_create); |
469 | |
470 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, |
471 | struct dentry *new_dentry) |
472 | { |
473 | if (unlikely(IS_PRIVATE(old_dentry->d_inode))) |
474 | return 0; |
475 | return security_ops->inode_link(old_dentry, dir, new_dentry); |
476 | } |
477 | |
478 | int security_inode_unlink(struct inode *dir, struct dentry *dentry) |
479 | { |
480 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
481 | return 0; |
482 | return security_ops->inode_unlink(dir, dentry); |
483 | } |
484 | |
485 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, |
486 | const char *old_name) |
487 | { |
488 | if (unlikely(IS_PRIVATE(dir))) |
489 | return 0; |
490 | return security_ops->inode_symlink(dir, dentry, old_name); |
491 | } |
492 | |
493 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) |
494 | { |
495 | if (unlikely(IS_PRIVATE(dir))) |
496 | return 0; |
497 | return security_ops->inode_mkdir(dir, dentry, mode); |
498 | } |
499 | EXPORT_SYMBOL_GPL(security_inode_mkdir); |
500 | |
501 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry) |
502 | { |
503 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
504 | return 0; |
505 | return security_ops->inode_rmdir(dir, dentry); |
506 | } |
507 | |
508 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) |
509 | { |
510 | if (unlikely(IS_PRIVATE(dir))) |
511 | return 0; |
512 | return security_ops->inode_mknod(dir, dentry, mode, dev); |
513 | } |
514 | |
515 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, |
516 | struct inode *new_dir, struct dentry *new_dentry) |
517 | { |
518 | if (unlikely(IS_PRIVATE(old_dentry->d_inode) || |
519 | (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) |
520 | return 0; |
521 | return security_ops->inode_rename(old_dir, old_dentry, |
522 | new_dir, new_dentry); |
523 | } |
524 | |
525 | int security_inode_readlink(struct dentry *dentry) |
526 | { |
527 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
528 | return 0; |
529 | return security_ops->inode_readlink(dentry); |
530 | } |
531 | |
532 | int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd) |
533 | { |
534 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
535 | return 0; |
536 | return security_ops->inode_follow_link(dentry, nd); |
537 | } |
538 | |
539 | int security_inode_permission(struct inode *inode, int mask) |
540 | { |
541 | if (unlikely(IS_PRIVATE(inode))) |
542 | return 0; |
543 | return security_ops->inode_permission(inode, mask); |
544 | } |
545 | |
546 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr) |
547 | { |
548 | int ret; |
549 | |
550 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
551 | return 0; |
552 | ret = security_ops->inode_setattr(dentry, attr); |
553 | if (ret) |
554 | return ret; |
555 | return evm_inode_setattr(dentry, attr); |
556 | } |
557 | EXPORT_SYMBOL_GPL(security_inode_setattr); |
558 | |
559 | int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) |
560 | { |
561 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
562 | return 0; |
563 | return security_ops->inode_getattr(mnt, dentry); |
564 | } |
565 | |
566 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
567 | const void *value, size_t size, int flags) |
568 | { |
569 | int ret; |
570 | |
571 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
572 | return 0; |
573 | ret = security_ops->inode_setxattr(dentry, name, value, size, flags); |
574 | if (ret) |
575 | return ret; |
576 | ret = ima_inode_setxattr(dentry, name, value, size); |
577 | if (ret) |
578 | return ret; |
579 | return evm_inode_setxattr(dentry, name, value, size); |
580 | } |
581 | |
582 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, |
583 | const void *value, size_t size, int flags) |
584 | { |
585 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
586 | return; |
587 | security_ops->inode_post_setxattr(dentry, name, value, size, flags); |
588 | evm_inode_post_setxattr(dentry, name, value, size); |
589 | } |
590 | |
591 | int security_inode_getxattr(struct dentry *dentry, const char *name) |
592 | { |
593 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
594 | return 0; |
595 | return security_ops->inode_getxattr(dentry, name); |
596 | } |
597 | |
598 | int security_inode_listxattr(struct dentry *dentry) |
599 | { |
600 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
601 | return 0; |
602 | return security_ops->inode_listxattr(dentry); |
603 | } |
604 | |
605 | int security_inode_removexattr(struct dentry *dentry, const char *name) |
606 | { |
607 | int ret; |
608 | |
609 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
610 | return 0; |
611 | ret = security_ops->inode_removexattr(dentry, name); |
612 | if (ret) |
613 | return ret; |
614 | ret = ima_inode_removexattr(dentry, name); |
615 | if (ret) |
616 | return ret; |
617 | return evm_inode_removexattr(dentry, name); |
618 | } |
619 | |
620 | int security_inode_need_killpriv(struct dentry *dentry) |
621 | { |
622 | return security_ops->inode_need_killpriv(dentry); |
623 | } |
624 | |
625 | int security_inode_killpriv(struct dentry *dentry) |
626 | { |
627 | return security_ops->inode_killpriv(dentry); |
628 | } |
629 | |
630 | int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) |
631 | { |
632 | if (unlikely(IS_PRIVATE(inode))) |
633 | return -EOPNOTSUPP; |
634 | return security_ops->inode_getsecurity(inode, name, buffer, alloc); |
635 | } |
636 | |
637 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) |
638 | { |
639 | if (unlikely(IS_PRIVATE(inode))) |
640 | return -EOPNOTSUPP; |
641 | return security_ops->inode_setsecurity(inode, name, value, size, flags); |
642 | } |
643 | |
644 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) |
645 | { |
646 | if (unlikely(IS_PRIVATE(inode))) |
647 | return 0; |
648 | return security_ops->inode_listsecurity(inode, buffer, buffer_size); |
649 | } |
650 | |
651 | void security_inode_getsecid(const struct inode *inode, u32 *secid) |
652 | { |
653 | security_ops->inode_getsecid(inode, secid); |
654 | } |
655 | |
656 | int security_file_permission(struct file *file, int mask) |
657 | { |
658 | int ret; |
659 | |
660 | ret = security_ops->file_permission(file, mask); |
661 | if (ret) |
662 | return ret; |
663 | |
664 | return fsnotify_perm(file, mask); |
665 | } |
666 | |
667 | int security_file_alloc(struct file *file) |
668 | { |
669 | return security_ops->file_alloc_security(file); |
670 | } |
671 | |
672 | void security_file_free(struct file *file) |
673 | { |
674 | security_ops->file_free_security(file); |
675 | } |
676 | |
677 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
678 | { |
679 | return security_ops->file_ioctl(file, cmd, arg); |
680 | } |
681 | |
682 | static inline unsigned long mmap_prot(struct file *file, unsigned long prot) |
683 | { |
684 | /* |
685 | * Does we have PROT_READ and does the application expect |
686 | * it to imply PROT_EXEC? If not, nothing to talk about... |
687 | */ |
688 | if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ) |
689 | return prot; |
690 | if (!(current->personality & READ_IMPLIES_EXEC)) |
691 | return prot; |
692 | /* |
693 | * if that's an anonymous mapping, let it. |
694 | */ |
695 | if (!file) |
696 | return prot | PROT_EXEC; |
697 | /* |
698 | * ditto if it's not on noexec mount, except that on !MMU we need |
699 | * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case |
700 | */ |
701 | if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) { |
702 | #ifndef CONFIG_MMU |
703 | unsigned long caps = 0; |
704 | struct address_space *mapping = file->f_mapping; |
705 | if (mapping && mapping->backing_dev_info) |
706 | caps = mapping->backing_dev_info->capabilities; |
707 | if (!(caps & BDI_CAP_EXEC_MAP)) |
708 | return prot; |
709 | #endif |
710 | return prot | PROT_EXEC; |
711 | } |
712 | /* anything on noexec mount won't get PROT_EXEC */ |
713 | return prot; |
714 | } |
715 | |
716 | int security_mmap_file(struct file *file, unsigned long prot, |
717 | unsigned long flags) |
718 | { |
719 | int ret; |
720 | ret = security_ops->mmap_file(file, prot, |
721 | mmap_prot(file, prot), flags); |
722 | if (ret) |
723 | return ret; |
724 | return ima_file_mmap(file, prot); |
725 | } |
726 | |
727 | int security_mmap_addr(unsigned long addr) |
728 | { |
729 | return security_ops->mmap_addr(addr); |
730 | } |
731 | |
732 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, |
733 | unsigned long prot) |
734 | { |
735 | return security_ops->file_mprotect(vma, reqprot, prot); |
736 | } |
737 | |
738 | int security_file_lock(struct file *file, unsigned int cmd) |
739 | { |
740 | return security_ops->file_lock(file, cmd); |
741 | } |
742 | |
743 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) |
744 | { |
745 | return security_ops->file_fcntl(file, cmd, arg); |
746 | } |
747 | |
748 | int security_file_set_fowner(struct file *file) |
749 | { |
750 | return security_ops->file_set_fowner(file); |
751 | } |
752 | |
753 | int security_file_send_sigiotask(struct task_struct *tsk, |
754 | struct fown_struct *fown, int sig) |
755 | { |
756 | return security_ops->file_send_sigiotask(tsk, fown, sig); |
757 | } |
758 | |
759 | int security_file_receive(struct file *file) |
760 | { |
761 | return security_ops->file_receive(file); |
762 | } |
763 | |
764 | int security_file_open(struct file *file, const struct cred *cred) |
765 | { |
766 | int ret; |
767 | |
768 | ret = security_ops->file_open(file, cred); |
769 | if (ret) |
770 | return ret; |
771 | |
772 | return fsnotify_perm(file, MAY_OPEN); |
773 | } |
774 | |
775 | int security_task_create(unsigned long clone_flags) |
776 | { |
777 | return security_ops->task_create(clone_flags); |
778 | } |
779 | |
780 | void security_task_free(struct task_struct *task) |
781 | { |
782 | #ifdef CONFIG_SECURITY_YAMA_STACKED |
783 | yama_task_free(task); |
784 | #endif |
785 | security_ops->task_free(task); |
786 | } |
787 | |
788 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
789 | { |
790 | return security_ops->cred_alloc_blank(cred, gfp); |
791 | } |
792 | |
793 | void security_cred_free(struct cred *cred) |
794 | { |
795 | security_ops->cred_free(cred); |
796 | } |
797 | |
798 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) |
799 | { |
800 | return security_ops->cred_prepare(new, old, gfp); |
801 | } |
802 | |
803 | void security_transfer_creds(struct cred *new, const struct cred *old) |
804 | { |
805 | security_ops->cred_transfer(new, old); |
806 | } |
807 | |
808 | int security_kernel_act_as(struct cred *new, u32 secid) |
809 | { |
810 | return security_ops->kernel_act_as(new, secid); |
811 | } |
812 | |
813 | int security_kernel_create_files_as(struct cred *new, struct inode *inode) |
814 | { |
815 | return security_ops->kernel_create_files_as(new, inode); |
816 | } |
817 | |
818 | int security_kernel_module_request(char *kmod_name) |
819 | { |
820 | return security_ops->kernel_module_request(kmod_name); |
821 | } |
822 | |
823 | int security_kernel_module_from_file(struct file *file) |
824 | { |
825 | int ret; |
826 | |
827 | ret = security_ops->kernel_module_from_file(file); |
828 | if (ret) |
829 | return ret; |
830 | return ima_module_check(file); |
831 | } |
832 | |
833 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
834 | int flags) |
835 | { |
836 | return security_ops->task_fix_setuid(new, old, flags); |
837 | } |
838 | |
839 | int security_task_setpgid(struct task_struct *p, pid_t pgid) |
840 | { |
841 | return security_ops->task_setpgid(p, pgid); |
842 | } |
843 | |
844 | int security_task_getpgid(struct task_struct *p) |
845 | { |
846 | return security_ops->task_getpgid(p); |
847 | } |
848 | |
849 | int security_task_getsid(struct task_struct *p) |
850 | { |
851 | return security_ops->task_getsid(p); |
852 | } |
853 | |
854 | void security_task_getsecid(struct task_struct *p, u32 *secid) |
855 | { |
856 | security_ops->task_getsecid(p, secid); |
857 | } |
858 | EXPORT_SYMBOL(security_task_getsecid); |
859 | |
860 | int security_task_setnice(struct task_struct *p, int nice) |
861 | { |
862 | return security_ops->task_setnice(p, nice); |
863 | } |
864 | |
865 | int security_task_setioprio(struct task_struct *p, int ioprio) |
866 | { |
867 | return security_ops->task_setioprio(p, ioprio); |
868 | } |
869 | |
870 | int security_task_getioprio(struct task_struct *p) |
871 | { |
872 | return security_ops->task_getioprio(p); |
873 | } |
874 | |
875 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
876 | struct rlimit *new_rlim) |
877 | { |
878 | return security_ops->task_setrlimit(p, resource, new_rlim); |
879 | } |
880 | |
881 | int security_task_setscheduler(struct task_struct *p) |
882 | { |
883 | return security_ops->task_setscheduler(p); |
884 | } |
885 | |
886 | int security_task_getscheduler(struct task_struct *p) |
887 | { |
888 | return security_ops->task_getscheduler(p); |
889 | } |
890 | |
891 | int security_task_movememory(struct task_struct *p) |
892 | { |
893 | return security_ops->task_movememory(p); |
894 | } |
895 | |
896 | int security_task_kill(struct task_struct *p, struct siginfo *info, |
897 | int sig, u32 secid) |
898 | { |
899 | return security_ops->task_kill(p, info, sig, secid); |
900 | } |
901 | |
902 | int security_task_wait(struct task_struct *p) |
903 | { |
904 | return security_ops->task_wait(p); |
905 | } |
906 | |
907 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
908 | unsigned long arg4, unsigned long arg5) |
909 | { |
910 | #ifdef CONFIG_SECURITY_YAMA_STACKED |
911 | int rc; |
912 | rc = yama_task_prctl(option, arg2, arg3, arg4, arg5); |
913 | if (rc != -ENOSYS) |
914 | return rc; |
915 | #endif |
916 | return security_ops->task_prctl(option, arg2, arg3, arg4, arg5); |
917 | } |
918 | |
919 | void security_task_to_inode(struct task_struct *p, struct inode *inode) |
920 | { |
921 | security_ops->task_to_inode(p, inode); |
922 | } |
923 | |
924 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) |
925 | { |
926 | return security_ops->ipc_permission(ipcp, flag); |
927 | } |
928 | |
929 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
930 | { |
931 | security_ops->ipc_getsecid(ipcp, secid); |
932 | } |
933 | |
934 | int security_msg_msg_alloc(struct msg_msg *msg) |
935 | { |
936 | return security_ops->msg_msg_alloc_security(msg); |
937 | } |
938 | |
939 | void security_msg_msg_free(struct msg_msg *msg) |
940 | { |
941 | security_ops->msg_msg_free_security(msg); |
942 | } |
943 | |
944 | int security_msg_queue_alloc(struct msg_queue *msq) |
945 | { |
946 | return security_ops->msg_queue_alloc_security(msq); |
947 | } |
948 | |
949 | void security_msg_queue_free(struct msg_queue *msq) |
950 | { |
951 | security_ops->msg_queue_free_security(msq); |
952 | } |
953 | |
954 | int security_msg_queue_associate(struct msg_queue *msq, int msqflg) |
955 | { |
956 | return security_ops->msg_queue_associate(msq, msqflg); |
957 | } |
958 | |
959 | int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) |
960 | { |
961 | return security_ops->msg_queue_msgctl(msq, cmd); |
962 | } |
963 | |
964 | int security_msg_queue_msgsnd(struct msg_queue *msq, |
965 | struct msg_msg *msg, int msqflg) |
966 | { |
967 | return security_ops->msg_queue_msgsnd(msq, msg, msqflg); |
968 | } |
969 | |
970 | int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, |
971 | struct task_struct *target, long type, int mode) |
972 | { |
973 | return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode); |
974 | } |
975 | |
976 | int security_shm_alloc(struct shmid_kernel *shp) |
977 | { |
978 | return security_ops->shm_alloc_security(shp); |
979 | } |
980 | |
981 | void security_shm_free(struct shmid_kernel *shp) |
982 | { |
983 | security_ops->shm_free_security(shp); |
984 | } |
985 | |
986 | int security_shm_associate(struct shmid_kernel *shp, int shmflg) |
987 | { |
988 | return security_ops->shm_associate(shp, shmflg); |
989 | } |
990 | |
991 | int security_shm_shmctl(struct shmid_kernel *shp, int cmd) |
992 | { |
993 | return security_ops->shm_shmctl(shp, cmd); |
994 | } |
995 | |
996 | int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) |
997 | { |
998 | return security_ops->shm_shmat(shp, shmaddr, shmflg); |
999 | } |
1000 | |
1001 | int security_sem_alloc(struct sem_array *sma) |
1002 | { |
1003 | return security_ops->sem_alloc_security(sma); |
1004 | } |
1005 | |
1006 | void security_sem_free(struct sem_array *sma) |
1007 | { |
1008 | security_ops->sem_free_security(sma); |
1009 | } |
1010 | |
1011 | int security_sem_associate(struct sem_array *sma, int semflg) |
1012 | { |
1013 | return security_ops->sem_associate(sma, semflg); |
1014 | } |
1015 | |
1016 | int security_sem_semctl(struct sem_array *sma, int cmd) |
1017 | { |
1018 | return security_ops->sem_semctl(sma, cmd); |
1019 | } |
1020 | |
1021 | int security_sem_semop(struct sem_array *sma, struct sembuf *sops, |
1022 | unsigned nsops, int alter) |
1023 | { |
1024 | return security_ops->sem_semop(sma, sops, nsops, alter); |
1025 | } |
1026 | |
1027 | void security_d_instantiate(struct dentry *dentry, struct inode *inode) |
1028 | { |
1029 | if (unlikely(inode && IS_PRIVATE(inode))) |
1030 | return; |
1031 | security_ops->d_instantiate(dentry, inode); |
1032 | } |
1033 | EXPORT_SYMBOL(security_d_instantiate); |
1034 | |
1035 | int security_getprocattr(struct task_struct *p, char *name, char **value) |
1036 | { |
1037 | return security_ops->getprocattr(p, name, value); |
1038 | } |
1039 | |
1040 | int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) |
1041 | { |
1042 | return security_ops->setprocattr(p, name, value, size); |
1043 | } |
1044 | |
1045 | int security_netlink_send(struct sock *sk, struct sk_buff *skb) |
1046 | { |
1047 | return security_ops->netlink_send(sk, skb); |
1048 | } |
1049 | |
1050 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
1051 | { |
1052 | return security_ops->secid_to_secctx(secid, secdata, seclen); |
1053 | } |
1054 | EXPORT_SYMBOL(security_secid_to_secctx); |
1055 | |
1056 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) |
1057 | { |
1058 | return security_ops->secctx_to_secid(secdata, seclen, secid); |
1059 | } |
1060 | EXPORT_SYMBOL(security_secctx_to_secid); |
1061 | |
1062 | void security_release_secctx(char *secdata, u32 seclen) |
1063 | { |
1064 | security_ops->release_secctx(secdata, seclen); |
1065 | } |
1066 | EXPORT_SYMBOL(security_release_secctx); |
1067 | |
1068 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) |
1069 | { |
1070 | return security_ops->inode_notifysecctx(inode, ctx, ctxlen); |
1071 | } |
1072 | EXPORT_SYMBOL(security_inode_notifysecctx); |
1073 | |
1074 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) |
1075 | { |
1076 | return security_ops->inode_setsecctx(dentry, ctx, ctxlen); |
1077 | } |
1078 | EXPORT_SYMBOL(security_inode_setsecctx); |
1079 | |
1080 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) |
1081 | { |
1082 | return security_ops->inode_getsecctx(inode, ctx, ctxlen); |
1083 | } |
1084 | EXPORT_SYMBOL(security_inode_getsecctx); |
1085 | |
1086 | #ifdef CONFIG_SECURITY_NETWORK |
1087 | |
1088 | int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) |
1089 | { |
1090 | return security_ops->unix_stream_connect(sock, other, newsk); |
1091 | } |
1092 | EXPORT_SYMBOL(security_unix_stream_connect); |
1093 | |
1094 | int security_unix_may_send(struct socket *sock, struct socket *other) |
1095 | { |
1096 | return security_ops->unix_may_send(sock, other); |
1097 | } |
1098 | EXPORT_SYMBOL(security_unix_may_send); |
1099 | |
1100 | int security_socket_create(int family, int type, int protocol, int kern) |
1101 | { |
1102 | return security_ops->socket_create(family, type, protocol, kern); |
1103 | } |
1104 | |
1105 | int security_socket_post_create(struct socket *sock, int family, |
1106 | int type, int protocol, int kern) |
1107 | { |
1108 | return security_ops->socket_post_create(sock, family, type, |
1109 | protocol, kern); |
1110 | } |
1111 | |
1112 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) |
1113 | { |
1114 | return security_ops->socket_bind(sock, address, addrlen); |
1115 | } |
1116 | |
1117 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) |
1118 | { |
1119 | return security_ops->socket_connect(sock, address, addrlen); |
1120 | } |
1121 | |
1122 | int security_socket_listen(struct socket *sock, int backlog) |
1123 | { |
1124 | return security_ops->socket_listen(sock, backlog); |
1125 | } |
1126 | |
1127 | int security_socket_accept(struct socket *sock, struct socket *newsock) |
1128 | { |
1129 | return security_ops->socket_accept(sock, newsock); |
1130 | } |
1131 | |
1132 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) |
1133 | { |
1134 | return security_ops->socket_sendmsg(sock, msg, size); |
1135 | } |
1136 | |
1137 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, |
1138 | int size, int flags) |
1139 | { |
1140 | return security_ops->socket_recvmsg(sock, msg, size, flags); |
1141 | } |
1142 | |
1143 | int security_socket_getsockname(struct socket *sock) |
1144 | { |
1145 | return security_ops->socket_getsockname(sock); |
1146 | } |
1147 | |
1148 | int security_socket_getpeername(struct socket *sock) |
1149 | { |
1150 | return security_ops->socket_getpeername(sock); |
1151 | } |
1152 | |
1153 | int security_socket_getsockopt(struct socket *sock, int level, int optname) |
1154 | { |
1155 | return security_ops->socket_getsockopt(sock, level, optname); |
1156 | } |
1157 | |
1158 | int security_socket_setsockopt(struct socket *sock, int level, int optname) |
1159 | { |
1160 | return security_ops->socket_setsockopt(sock, level, optname); |
1161 | } |
1162 | |
1163 | int security_socket_shutdown(struct socket *sock, int how) |
1164 | { |
1165 | return security_ops->socket_shutdown(sock, how); |
1166 | } |
1167 | |
1168 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) |
1169 | { |
1170 | return security_ops->socket_sock_rcv_skb(sk, skb); |
1171 | } |
1172 | EXPORT_SYMBOL(security_sock_rcv_skb); |
1173 | |
1174 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, |
1175 | int __user *optlen, unsigned len) |
1176 | { |
1177 | return security_ops->socket_getpeersec_stream(sock, optval, optlen, len); |
1178 | } |
1179 | |
1180 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) |
1181 | { |
1182 | return security_ops->socket_getpeersec_dgram(sock, skb, secid); |
1183 | } |
1184 | EXPORT_SYMBOL(security_socket_getpeersec_dgram); |
1185 | |
1186 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority) |
1187 | { |
1188 | return security_ops->sk_alloc_security(sk, family, priority); |
1189 | } |
1190 | |
1191 | void security_sk_free(struct sock *sk) |
1192 | { |
1193 | security_ops->sk_free_security(sk); |
1194 | } |
1195 | |
1196 | void security_sk_clone(const struct sock *sk, struct sock *newsk) |
1197 | { |
1198 | security_ops->sk_clone_security(sk, newsk); |
1199 | } |
1200 | EXPORT_SYMBOL(security_sk_clone); |
1201 | |
1202 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl) |
1203 | { |
1204 | security_ops->sk_getsecid(sk, &fl->flowi_secid); |
1205 | } |
1206 | EXPORT_SYMBOL(security_sk_classify_flow); |
1207 | |
1208 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) |
1209 | { |
1210 | security_ops->req_classify_flow(req, fl); |
1211 | } |
1212 | EXPORT_SYMBOL(security_req_classify_flow); |
1213 | |
1214 | void security_sock_graft(struct sock *sk, struct socket *parent) |
1215 | { |
1216 | security_ops->sock_graft(sk, parent); |
1217 | } |
1218 | EXPORT_SYMBOL(security_sock_graft); |
1219 | |
1220 | int security_inet_conn_request(struct sock *sk, |
1221 | struct sk_buff *skb, struct request_sock *req) |
1222 | { |
1223 | return security_ops->inet_conn_request(sk, skb, req); |
1224 | } |
1225 | EXPORT_SYMBOL(security_inet_conn_request); |
1226 | |
1227 | void security_inet_csk_clone(struct sock *newsk, |
1228 | const struct request_sock *req) |
1229 | { |
1230 | security_ops->inet_csk_clone(newsk, req); |
1231 | } |
1232 | |
1233 | void security_inet_conn_established(struct sock *sk, |
1234 | struct sk_buff *skb) |
1235 | { |
1236 | security_ops->inet_conn_established(sk, skb); |
1237 | } |
1238 | |
1239 | int security_secmark_relabel_packet(u32 secid) |
1240 | { |
1241 | return security_ops->secmark_relabel_packet(secid); |
1242 | } |
1243 | EXPORT_SYMBOL(security_secmark_relabel_packet); |
1244 | |
1245 | void security_secmark_refcount_inc(void) |
1246 | { |
1247 | security_ops->secmark_refcount_inc(); |
1248 | } |
1249 | EXPORT_SYMBOL(security_secmark_refcount_inc); |
1250 | |
1251 | void security_secmark_refcount_dec(void) |
1252 | { |
1253 | security_ops->secmark_refcount_dec(); |
1254 | } |
1255 | EXPORT_SYMBOL(security_secmark_refcount_dec); |
1256 | |
1257 | int security_tun_dev_alloc_security(void **security) |
1258 | { |
1259 | return security_ops->tun_dev_alloc_security(security); |
1260 | } |
1261 | EXPORT_SYMBOL(security_tun_dev_alloc_security); |
1262 | |
1263 | void security_tun_dev_free_security(void *security) |
1264 | { |
1265 | security_ops->tun_dev_free_security(security); |
1266 | } |
1267 | EXPORT_SYMBOL(security_tun_dev_free_security); |
1268 | |
1269 | int security_tun_dev_create(void) |
1270 | { |
1271 | return security_ops->tun_dev_create(); |
1272 | } |
1273 | EXPORT_SYMBOL(security_tun_dev_create); |
1274 | |
1275 | int security_tun_dev_attach_queue(void *security) |
1276 | { |
1277 | return security_ops->tun_dev_attach_queue(security); |
1278 | } |
1279 | EXPORT_SYMBOL(security_tun_dev_attach_queue); |
1280 | |
1281 | int security_tun_dev_attach(struct sock *sk, void *security) |
1282 | { |
1283 | return security_ops->tun_dev_attach(sk, security); |
1284 | } |
1285 | EXPORT_SYMBOL(security_tun_dev_attach); |
1286 | |
1287 | int security_tun_dev_open(void *security) |
1288 | { |
1289 | return security_ops->tun_dev_open(security); |
1290 | } |
1291 | EXPORT_SYMBOL(security_tun_dev_open); |
1292 | |
1293 | void security_skb_owned_by(struct sk_buff *skb, struct sock *sk) |
1294 | { |
1295 | security_ops->skb_owned_by(skb, sk); |
1296 | } |
1297 | |
1298 | #endif /* CONFIG_SECURITY_NETWORK */ |
1299 | |
1300 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
1301 | |
1302 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) |
1303 | { |
1304 | return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx); |
1305 | } |
1306 | EXPORT_SYMBOL(security_xfrm_policy_alloc); |
1307 | |
1308 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, |
1309 | struct xfrm_sec_ctx **new_ctxp) |
1310 | { |
1311 | return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp); |
1312 | } |
1313 | |
1314 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
1315 | { |
1316 | security_ops->xfrm_policy_free_security(ctx); |
1317 | } |
1318 | EXPORT_SYMBOL(security_xfrm_policy_free); |
1319 | |
1320 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
1321 | { |
1322 | return security_ops->xfrm_policy_delete_security(ctx); |
1323 | } |
1324 | |
1325 | int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx) |
1326 | { |
1327 | return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0); |
1328 | } |
1329 | EXPORT_SYMBOL(security_xfrm_state_alloc); |
1330 | |
1331 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, |
1332 | struct xfrm_sec_ctx *polsec, u32 secid) |
1333 | { |
1334 | if (!polsec) |
1335 | return 0; |
1336 | /* |
1337 | * We want the context to be taken from secid which is usually |
1338 | * from the sock. |
1339 | */ |
1340 | return security_ops->xfrm_state_alloc_security(x, NULL, secid); |
1341 | } |
1342 | |
1343 | int security_xfrm_state_delete(struct xfrm_state *x) |
1344 | { |
1345 | return security_ops->xfrm_state_delete_security(x); |
1346 | } |
1347 | EXPORT_SYMBOL(security_xfrm_state_delete); |
1348 | |
1349 | void security_xfrm_state_free(struct xfrm_state *x) |
1350 | { |
1351 | security_ops->xfrm_state_free_security(x); |
1352 | } |
1353 | |
1354 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
1355 | { |
1356 | return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir); |
1357 | } |
1358 | |
1359 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, |
1360 | struct xfrm_policy *xp, |
1361 | const struct flowi *fl) |
1362 | { |
1363 | return security_ops->xfrm_state_pol_flow_match(x, xp, fl); |
1364 | } |
1365 | |
1366 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) |
1367 | { |
1368 | return security_ops->xfrm_decode_session(skb, secid, 1); |
1369 | } |
1370 | |
1371 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) |
1372 | { |
1373 | int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0); |
1374 | |
1375 | BUG_ON(rc); |
1376 | } |
1377 | EXPORT_SYMBOL(security_skb_classify_flow); |
1378 | |
1379 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
1380 | |
1381 | #ifdef CONFIG_KEYS |
1382 | |
1383 | int security_key_alloc(struct key *key, const struct cred *cred, |
1384 | unsigned long flags) |
1385 | { |
1386 | return security_ops->key_alloc(key, cred, flags); |
1387 | } |
1388 | |
1389 | void security_key_free(struct key *key) |
1390 | { |
1391 | security_ops->key_free(key); |
1392 | } |
1393 | |
1394 | int security_key_permission(key_ref_t key_ref, |
1395 | const struct cred *cred, key_perm_t perm) |
1396 | { |
1397 | return security_ops->key_permission(key_ref, cred, perm); |
1398 | } |
1399 | |
1400 | int security_key_getsecurity(struct key *key, char **_buffer) |
1401 | { |
1402 | return security_ops->key_getsecurity(key, _buffer); |
1403 | } |
1404 | |
1405 | #endif /* CONFIG_KEYS */ |
1406 | |
1407 | #ifdef CONFIG_AUDIT |
1408 | |
1409 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) |
1410 | { |
1411 | return security_ops->audit_rule_init(field, op, rulestr, lsmrule); |
1412 | } |
1413 | |
1414 | int security_audit_rule_known(struct audit_krule *krule) |
1415 | { |
1416 | return security_ops->audit_rule_known(krule); |
1417 | } |
1418 | |
1419 | void security_audit_rule_free(void *lsmrule) |
1420 | { |
1421 | security_ops->audit_rule_free(lsmrule); |
1422 | } |
1423 | |
1424 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, |
1425 | struct audit_context *actx) |
1426 | { |
1427 | return security_ops->audit_rule_match(secid, field, op, lsmrule, actx); |
1428 | } |
1429 | |
1430 | #endif /* CONFIG_AUDIT */ |
1431 |
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