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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 
verify(struct security_operations * ops)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 
do_security_initcalls(void)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  */
security_init(void)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 
reset_security_ops(void)75 void reset_security_ops(void)
76 {
77 	security_ops = &default_security_ops;
78 }
79 
80 /* Save user chosen LSM */
choose_lsm(char * str)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  */
security_module_enable(struct security_operations * ops)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  */
register_security(struct security_operations * ops)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 
security_binder_set_context_mgr(struct task_struct * mgr)137 int security_binder_set_context_mgr(struct task_struct *mgr)
138 {
139 	return security_ops->binder_set_context_mgr(mgr);
140 }
141 
security_binder_transaction(struct task_struct * from,struct task_struct * to)142 int security_binder_transaction(struct task_struct *from, struct task_struct *to)
143 {
144 	return security_ops->binder_transaction(from, to);
145 }
146 
security_binder_transfer_binder(struct task_struct * from,struct task_struct * to)147 int security_binder_transfer_binder(struct task_struct *from, struct task_struct *to)
148 {
149 	return security_ops->binder_transfer_binder(from, to);
150 }
151 
security_binder_transfer_file(struct task_struct * from,struct task_struct * to,struct file * file)152 int security_binder_transfer_file(struct task_struct *from, struct task_struct *to, struct file *file)
153 {
154 	return security_ops->binder_transfer_file(from, to, file);
155 }
156 
security_ptrace_access_check(struct task_struct * child,unsigned int mode)157 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
158 {
159 #ifdef CONFIG_SECURITY_YAMA_STACKED
160 	int rc;
161 	rc = yama_ptrace_access_check(child, mode);
162 	if (rc)
163 		return rc;
164 #endif
165 	return security_ops->ptrace_access_check(child, mode);
166 }
167 
security_ptrace_traceme(struct task_struct * parent)168 int security_ptrace_traceme(struct task_struct *parent)
169 {
170 #ifdef CONFIG_SECURITY_YAMA_STACKED
171 	int rc;
172 	rc = yama_ptrace_traceme(parent);
173 	if (rc)
174 		return rc;
175 #endif
176 	return security_ops->ptrace_traceme(parent);
177 }
178 
security_capget(struct task_struct * target,kernel_cap_t * effective,kernel_cap_t * inheritable,kernel_cap_t * permitted)179 int security_capget(struct task_struct *target,
180 		     kernel_cap_t *effective,
181 		     kernel_cap_t *inheritable,
182 		     kernel_cap_t *permitted)
183 {
184 	return security_ops->capget(target, effective, inheritable, permitted);
185 }
186 
security_capset(struct cred * new,const struct cred * old,const kernel_cap_t * effective,const kernel_cap_t * inheritable,const kernel_cap_t * permitted)187 int security_capset(struct cred *new, const struct cred *old,
188 		    const kernel_cap_t *effective,
189 		    const kernel_cap_t *inheritable,
190 		    const kernel_cap_t *permitted)
191 {
192 	return security_ops->capset(new, old,
193 				    effective, inheritable, permitted);
194 }
195 
security_capable(const struct cred * cred,struct user_namespace * ns,int cap)196 int security_capable(const struct cred *cred, struct user_namespace *ns,
197 		     int cap)
198 {
199 	return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
200 }
201 
security_capable_noaudit(const struct cred * cred,struct user_namespace * ns,int cap)202 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
203 			     int cap)
204 {
205 	return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
206 }
207 
security_quotactl(int cmds,int type,int id,struct super_block * sb)208 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
209 {
210 	return security_ops->quotactl(cmds, type, id, sb);
211 }
212 
security_quota_on(struct dentry * dentry)213 int security_quota_on(struct dentry *dentry)
214 {
215 	return security_ops->quota_on(dentry);
216 }
217 
security_syslog(int type)218 int security_syslog(int type)
219 {
220 	return security_ops->syslog(type);
221 }
222 
security_settime(const struct timespec * ts,const struct timezone * tz)223 int security_settime(const struct timespec *ts, const struct timezone *tz)
224 {
225 	return security_ops->settime(ts, tz);
226 }
227 
security_vm_enough_memory_mm(struct mm_struct * mm,long pages)228 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
229 {
230 	return security_ops->vm_enough_memory(mm, pages);
231 }
232 
security_bprm_set_creds(struct linux_binprm * bprm)233 int security_bprm_set_creds(struct linux_binprm *bprm)
234 {
235 	return security_ops->bprm_set_creds(bprm);
236 }
237 
security_bprm_check(struct linux_binprm * bprm)238 int security_bprm_check(struct linux_binprm *bprm)
239 {
240 	int ret;
241 
242 	ret = security_ops->bprm_check_security(bprm);
243 	if (ret)
244 		return ret;
245 	return ima_bprm_check(bprm);
246 }
247 
security_bprm_committing_creds(struct linux_binprm * bprm)248 void security_bprm_committing_creds(struct linux_binprm *bprm)
249 {
250 	security_ops->bprm_committing_creds(bprm);
251 }
252 
security_bprm_committed_creds(struct linux_binprm * bprm)253 void security_bprm_committed_creds(struct linux_binprm *bprm)
254 {
255 	security_ops->bprm_committed_creds(bprm);
256 }
257 
security_bprm_secureexec(struct linux_binprm * bprm)258 int security_bprm_secureexec(struct linux_binprm *bprm)
259 {
260 	return security_ops->bprm_secureexec(bprm);
261 }
262 
security_sb_alloc(struct super_block * sb)263 int security_sb_alloc(struct super_block *sb)
264 {
265 	return security_ops->sb_alloc_security(sb);
266 }
267 
security_sb_free(struct super_block * sb)268 void security_sb_free(struct super_block *sb)
269 {
270 	security_ops->sb_free_security(sb);
271 }
272 
security_sb_copy_data(char * orig,char * copy)273 int security_sb_copy_data(char *orig, char *copy)
274 {
275 	return security_ops->sb_copy_data(orig, copy);
276 }
277 EXPORT_SYMBOL(security_sb_copy_data);
278 
security_sb_remount(struct super_block * sb,void * data)279 int security_sb_remount(struct super_block *sb, void *data)
280 {
281 	return security_ops->sb_remount(sb, data);
282 }
283 
security_sb_kern_mount(struct super_block * sb,int flags,void * data)284 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
285 {
286 	return security_ops->sb_kern_mount(sb, flags, data);
287 }
288 
security_sb_show_options(struct seq_file * m,struct super_block * sb)289 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
290 {
291 	return security_ops->sb_show_options(m, sb);
292 }
293 
security_sb_statfs(struct dentry * dentry)294 int security_sb_statfs(struct dentry *dentry)
295 {
296 	return security_ops->sb_statfs(dentry);
297 }
298 
security_sb_mount(const char * dev_name,struct path * path,const char * type,unsigned long flags,void * data)299 int security_sb_mount(const char *dev_name, struct path *path,
300                        const char *type, unsigned long flags, void *data)
301 {
302 	return security_ops->sb_mount(dev_name, path, type, flags, data);
303 }
304 
security_sb_umount(struct vfsmount * mnt,int flags)305 int security_sb_umount(struct vfsmount *mnt, int flags)
306 {
307 	return security_ops->sb_umount(mnt, flags);
308 }
309 
security_sb_pivotroot(struct path * old_path,struct path * new_path)310 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
311 {
312 	return security_ops->sb_pivotroot(old_path, new_path);
313 }
314 
security_sb_set_mnt_opts(struct super_block * sb,struct security_mnt_opts * opts)315 int security_sb_set_mnt_opts(struct super_block *sb,
316 				struct security_mnt_opts *opts)
317 {
318 	return security_ops->sb_set_mnt_opts(sb, opts);
319 }
320 EXPORT_SYMBOL(security_sb_set_mnt_opts);
321 
security_sb_clone_mnt_opts(const struct super_block * oldsb,struct super_block * newsb)322 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
323 				struct super_block *newsb)
324 {
325 	return security_ops->sb_clone_mnt_opts(oldsb, newsb);
326 }
327 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
328 
security_sb_parse_opts_str(char * options,struct security_mnt_opts * opts)329 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
330 {
331 	return security_ops->sb_parse_opts_str(options, opts);
332 }
333 EXPORT_SYMBOL(security_sb_parse_opts_str);
334 
security_inode_alloc(struct inode * inode)335 int security_inode_alloc(struct inode *inode)
336 {
337 	inode->i_security = NULL;
338 	return security_ops->inode_alloc_security(inode);
339 }
340 
security_inode_free(struct inode * inode)341 void security_inode_free(struct inode *inode)
342 {
343 	integrity_inode_free(inode);
344 	security_ops->inode_free_security(inode);
345 }
346 
security_inode_init_security(struct inode * inode,struct inode * dir,const struct qstr * qstr,const initxattrs initxattrs,void * fs_data)347 int security_inode_init_security(struct inode *inode, struct inode *dir,
348 				 const struct qstr *qstr,
349 				 const initxattrs initxattrs, void *fs_data)
350 {
351 	struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
352 	struct xattr *lsm_xattr, *evm_xattr, *xattr;
353 	int ret;
354 
355 	if (unlikely(IS_PRIVATE(inode)))
356 		return 0;
357 
358 	memset(new_xattrs, 0, sizeof new_xattrs);
359 	if (!initxattrs)
360 		return security_ops->inode_init_security(inode, dir, qstr,
361 							 NULL, NULL, NULL);
362 	lsm_xattr = new_xattrs;
363 	ret = security_ops->inode_init_security(inode, dir, qstr,
364 						&lsm_xattr->name,
365 						&lsm_xattr->value,
366 						&lsm_xattr->value_len);
367 	if (ret)
368 		goto out;
369 
370 	evm_xattr = lsm_xattr + 1;
371 	ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
372 	if (ret)
373 		goto out;
374 	ret = initxattrs(inode, new_xattrs, fs_data);
375 out:
376 	for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
377 		kfree(xattr->name);
378 		kfree(xattr->value);
379 	}
380 	return (ret == -EOPNOTSUPP) ? 0 : ret;
381 }
382 EXPORT_SYMBOL(security_inode_init_security);
383 
security_old_inode_init_security(struct inode * inode,struct inode * dir,const struct qstr * qstr,char ** name,void ** value,size_t * len)384 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
385 				     const struct qstr *qstr, char **name,
386 				     void **value, size_t *len)
387 {
388 	if (unlikely(IS_PRIVATE(inode)))
389 		return -EOPNOTSUPP;
390 	return security_ops->inode_init_security(inode, dir, qstr, name, value,
391 						 len);
392 }
393 EXPORT_SYMBOL(security_old_inode_init_security);
394 
395 #ifdef CONFIG_SECURITY_PATH
security_path_mknod(struct path * dir,struct dentry * dentry,umode_t mode,unsigned int dev)396 int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
397 			unsigned int dev)
398 {
399 	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
400 		return 0;
401 	return security_ops->path_mknod(dir, dentry, mode, dev);
402 }
403 EXPORT_SYMBOL(security_path_mknod);
404 
security_path_mkdir(struct path * dir,struct dentry * dentry,umode_t mode)405 int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
406 {
407 	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
408 		return 0;
409 	return security_ops->path_mkdir(dir, dentry, mode);
410 }
411 EXPORT_SYMBOL(security_path_mkdir);
412 
security_path_rmdir(struct path * dir,struct dentry * dentry)413 int security_path_rmdir(struct path *dir, struct dentry *dentry)
414 {
415 	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
416 		return 0;
417 	return security_ops->path_rmdir(dir, dentry);
418 }
419 
security_path_unlink(struct path * dir,struct dentry * dentry)420 int security_path_unlink(struct path *dir, struct dentry *dentry)
421 {
422 	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
423 		return 0;
424 	return security_ops->path_unlink(dir, dentry);
425 }
426 EXPORT_SYMBOL(security_path_unlink);
427 
security_path_symlink(struct path * dir,struct dentry * dentry,const char * old_name)428 int security_path_symlink(struct path *dir, struct dentry *dentry,
429 			  const char *old_name)
430 {
431 	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
432 		return 0;
433 	return security_ops->path_symlink(dir, dentry, old_name);
434 }
435 
security_path_link(struct dentry * old_dentry,struct path * new_dir,struct dentry * new_dentry)436 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
437 		       struct dentry *new_dentry)
438 {
439 	if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
440 		return 0;
441 	return security_ops->path_link(old_dentry, new_dir, new_dentry);
442 }
443 
security_path_rename(struct path * old_dir,struct dentry * old_dentry,struct path * new_dir,struct dentry * new_dentry)444 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
445 			 struct path *new_dir, struct dentry *new_dentry)
446 {
447 	if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
448 		     (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
449 		return 0;
450 	return security_ops->path_rename(old_dir, old_dentry, new_dir,
451 					 new_dentry);
452 }
453 EXPORT_SYMBOL(security_path_rename);
454 
security_path_truncate(struct path * path)455 int security_path_truncate(struct path *path)
456 {
457 	if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
458 		return 0;
459 	return security_ops->path_truncate(path);
460 }
461 
security_path_chmod(struct path * path,umode_t mode)462 int security_path_chmod(struct path *path, umode_t mode)
463 {
464 	if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
465 		return 0;
466 	return security_ops->path_chmod(path, mode);
467 }
468 
security_path_chown(struct path * path,kuid_t uid,kgid_t gid)469 int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
470 {
471 	if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
472 		return 0;
473 	return security_ops->path_chown(path, uid, gid);
474 }
475 
security_path_chroot(struct path * path)476 int security_path_chroot(struct path *path)
477 {
478 	return security_ops->path_chroot(path);
479 }
480 #endif
481 
security_inode_create(struct inode * dir,struct dentry * dentry,umode_t mode)482 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
483 {
484 	if (unlikely(IS_PRIVATE(dir)))
485 		return 0;
486 	return security_ops->inode_create(dir, dentry, mode);
487 }
488 EXPORT_SYMBOL_GPL(security_inode_create);
489 
security_inode_link(struct dentry * old_dentry,struct inode * dir,struct dentry * new_dentry)490 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
491 			 struct dentry *new_dentry)
492 {
493 	if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
494 		return 0;
495 	return security_ops->inode_link(old_dentry, dir, new_dentry);
496 }
497 
security_inode_unlink(struct inode * dir,struct dentry * dentry)498 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
499 {
500 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
501 		return 0;
502 	return security_ops->inode_unlink(dir, dentry);
503 }
504 
security_inode_symlink(struct inode * dir,struct dentry * dentry,const char * old_name)505 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
506 			    const char *old_name)
507 {
508 	if (unlikely(IS_PRIVATE(dir)))
509 		return 0;
510 	return security_ops->inode_symlink(dir, dentry, old_name);
511 }
512 
security_inode_mkdir(struct inode * dir,struct dentry * dentry,umode_t mode)513 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
514 {
515 	if (unlikely(IS_PRIVATE(dir)))
516 		return 0;
517 	return security_ops->inode_mkdir(dir, dentry, mode);
518 }
519 EXPORT_SYMBOL_GPL(security_inode_mkdir);
520 
security_inode_rmdir(struct inode * dir,struct dentry * dentry)521 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
522 {
523 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
524 		return 0;
525 	return security_ops->inode_rmdir(dir, dentry);
526 }
527 
security_inode_mknod(struct inode * dir,struct dentry * dentry,umode_t mode,dev_t dev)528 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
529 {
530 	if (unlikely(IS_PRIVATE(dir)))
531 		return 0;
532 	return security_ops->inode_mknod(dir, dentry, mode, dev);
533 }
534 
security_inode_rename(struct inode * old_dir,struct dentry * old_dentry,struct inode * new_dir,struct dentry * new_dentry)535 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
536 			   struct inode *new_dir, struct dentry *new_dentry)
537 {
538         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
539             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
540 		return 0;
541 	return security_ops->inode_rename(old_dir, old_dentry,
542 					   new_dir, new_dentry);
543 }
544 
security_inode_readlink(struct dentry * dentry)545 int security_inode_readlink(struct dentry *dentry)
546 {
547 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
548 		return 0;
549 	return security_ops->inode_readlink(dentry);
550 }
551 
security_inode_follow_link(struct dentry * dentry,struct nameidata * nd)552 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
553 {
554 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
555 		return 0;
556 	return security_ops->inode_follow_link(dentry, nd);
557 }
558 
security_inode_permission(struct inode * inode,int mask)559 int security_inode_permission(struct inode *inode, int mask)
560 {
561 	if (unlikely(IS_PRIVATE(inode)))
562 		return 0;
563 	return security_ops->inode_permission(inode, mask);
564 }
565 
security_inode_setattr(struct dentry * dentry,struct iattr * attr)566 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
567 {
568 	int ret;
569 
570 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
571 		return 0;
572 	ret = security_ops->inode_setattr(dentry, attr);
573 	if (ret)
574 		return ret;
575 	return evm_inode_setattr(dentry, attr);
576 }
577 EXPORT_SYMBOL_GPL(security_inode_setattr);
578 
security_inode_getattr(struct vfsmount * mnt,struct dentry * dentry)579 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
580 {
581 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
582 		return 0;
583 	return security_ops->inode_getattr(mnt, dentry);
584 }
585 
security_inode_setxattr(struct dentry * dentry,const char * name,const void * value,size_t size,int flags)586 int security_inode_setxattr(struct dentry *dentry, const char *name,
587 			    const void *value, size_t size, int flags)
588 {
589 	int ret;
590 
591 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
592 		return 0;
593 	ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
594 	if (ret)
595 		return ret;
596 	ret = ima_inode_setxattr(dentry, name, value, size);
597 	if (ret)
598 		return ret;
599 	return evm_inode_setxattr(dentry, name, value, size);
600 }
601 
security_inode_post_setxattr(struct dentry * dentry,const char * name,const void * value,size_t size,int flags)602 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
603 				  const void *value, size_t size, int flags)
604 {
605 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
606 		return;
607 	security_ops->inode_post_setxattr(dentry, name, value, size, flags);
608 	evm_inode_post_setxattr(dentry, name, value, size);
609 }
610 
security_inode_getxattr(struct dentry * dentry,const char * name)611 int security_inode_getxattr(struct dentry *dentry, const char *name)
612 {
613 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
614 		return 0;
615 	return security_ops->inode_getxattr(dentry, name);
616 }
617 
security_inode_listxattr(struct dentry * dentry)618 int security_inode_listxattr(struct dentry *dentry)
619 {
620 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
621 		return 0;
622 	return security_ops->inode_listxattr(dentry);
623 }
624 
security_inode_removexattr(struct dentry * dentry,const char * name)625 int security_inode_removexattr(struct dentry *dentry, const char *name)
626 {
627 	int ret;
628 
629 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
630 		return 0;
631 	ret = security_ops->inode_removexattr(dentry, name);
632 	if (ret)
633 		return ret;
634 	ret = ima_inode_removexattr(dentry, name);
635 	if (ret)
636 		return ret;
637 	return evm_inode_removexattr(dentry, name);
638 }
639 
security_inode_need_killpriv(struct dentry * dentry)640 int security_inode_need_killpriv(struct dentry *dentry)
641 {
642 	return security_ops->inode_need_killpriv(dentry);
643 }
644 
security_inode_killpriv(struct dentry * dentry)645 int security_inode_killpriv(struct dentry *dentry)
646 {
647 	return security_ops->inode_killpriv(dentry);
648 }
649 
security_inode_getsecurity(const struct inode * inode,const char * name,void ** buffer,bool alloc)650 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
651 {
652 	if (unlikely(IS_PRIVATE(inode)))
653 		return -EOPNOTSUPP;
654 	return security_ops->inode_getsecurity(inode, name, buffer, alloc);
655 }
656 
security_inode_setsecurity(struct inode * inode,const char * name,const void * value,size_t size,int flags)657 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
658 {
659 	if (unlikely(IS_PRIVATE(inode)))
660 		return -EOPNOTSUPP;
661 	return security_ops->inode_setsecurity(inode, name, value, size, flags);
662 }
663 
security_inode_listsecurity(struct inode * inode,char * buffer,size_t buffer_size)664 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
665 {
666 	if (unlikely(IS_PRIVATE(inode)))
667 		return 0;
668 	return security_ops->inode_listsecurity(inode, buffer, buffer_size);
669 }
670 
security_inode_getsecid(const struct inode * inode,u32 * secid)671 void security_inode_getsecid(const struct inode *inode, u32 *secid)
672 {
673 	security_ops->inode_getsecid(inode, secid);
674 }
675 
security_file_permission(struct file * file,int mask)676 int security_file_permission(struct file *file, int mask)
677 {
678 	int ret;
679 
680 	ret = security_ops->file_permission(file, mask);
681 	if (ret)
682 		return ret;
683 
684 	return fsnotify_perm(file, mask);
685 }
686 
security_file_alloc(struct file * file)687 int security_file_alloc(struct file *file)
688 {
689 	return security_ops->file_alloc_security(file);
690 }
691 
security_file_free(struct file * file)692 void security_file_free(struct file *file)
693 {
694 	security_ops->file_free_security(file);
695 }
696 
security_file_ioctl(struct file * file,unsigned int cmd,unsigned long arg)697 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
698 {
699 	return security_ops->file_ioctl(file, cmd, arg);
700 }
701 
mmap_prot(struct file * file,unsigned long prot)702 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
703 {
704 	/*
705 	 * Does we have PROT_READ and does the application expect
706 	 * it to imply PROT_EXEC?  If not, nothing to talk about...
707 	 */
708 	if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
709 		return prot;
710 	if (!(current->personality & READ_IMPLIES_EXEC))
711 		return prot;
712 	/*
713 	 * if that's an anonymous mapping, let it.
714 	 */
715 	if (!file)
716 		return prot | PROT_EXEC;
717 	/*
718 	 * ditto if it's not on noexec mount, except that on !MMU we need
719 	 * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
720 	 */
721 	if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) {
722 #ifndef CONFIG_MMU
723 		unsigned long caps = 0;
724 		struct address_space *mapping = file->f_mapping;
725 		if (mapping && mapping->backing_dev_info)
726 			caps = mapping->backing_dev_info->capabilities;
727 		if (!(caps & BDI_CAP_EXEC_MAP))
728 			return prot;
729 #endif
730 		return prot | PROT_EXEC;
731 	}
732 	/* anything on noexec mount won't get PROT_EXEC */
733 	return prot;
734 }
735 
security_mmap_file(struct file * file,unsigned long prot,unsigned long flags)736 int security_mmap_file(struct file *file, unsigned long prot,
737 			unsigned long flags)
738 {
739 	int ret;
740 	ret = security_ops->mmap_file(file, prot,
741 					mmap_prot(file, prot), flags);
742 	if (ret)
743 		return ret;
744 	return ima_file_mmap(file, prot);
745 }
746 
security_mmap_addr(unsigned long addr)747 int security_mmap_addr(unsigned long addr)
748 {
749 	return security_ops->mmap_addr(addr);
750 }
751 
security_file_mprotect(struct vm_area_struct * vma,unsigned long reqprot,unsigned long prot)752 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
753 			    unsigned long prot)
754 {
755 	return security_ops->file_mprotect(vma, reqprot, prot);
756 }
757 
security_file_lock(struct file * file,unsigned int cmd)758 int security_file_lock(struct file *file, unsigned int cmd)
759 {
760 	return security_ops->file_lock(file, cmd);
761 }
762 
security_file_fcntl(struct file * file,unsigned int cmd,unsigned long arg)763 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
764 {
765 	return security_ops->file_fcntl(file, cmd, arg);
766 }
767 
security_file_set_fowner(struct file * file)768 int security_file_set_fowner(struct file *file)
769 {
770 	return security_ops->file_set_fowner(file);
771 }
772 
security_file_send_sigiotask(struct task_struct * tsk,struct fown_struct * fown,int sig)773 int security_file_send_sigiotask(struct task_struct *tsk,
774 				  struct fown_struct *fown, int sig)
775 {
776 	return security_ops->file_send_sigiotask(tsk, fown, sig);
777 }
778 
security_file_receive(struct file * file)779 int security_file_receive(struct file *file)
780 {
781 	return security_ops->file_receive(file);
782 }
783 
security_file_open(struct file * file,const struct cred * cred)784 int security_file_open(struct file *file, const struct cred *cred)
785 {
786 	int ret;
787 
788 	ret = security_ops->file_open(file, cred);
789 	if (ret)
790 		return ret;
791 
792 	return fsnotify_perm(file, MAY_OPEN);
793 }
794 
security_task_create(unsigned long clone_flags)795 int security_task_create(unsigned long clone_flags)
796 {
797 	return security_ops->task_create(clone_flags);
798 }
799 
security_task_free(struct task_struct * task)800 void security_task_free(struct task_struct *task)
801 {
802 #ifdef CONFIG_SECURITY_YAMA_STACKED
803 	yama_task_free(task);
804 #endif
805 	security_ops->task_free(task);
806 }
807 
security_cred_alloc_blank(struct cred * cred,gfp_t gfp)808 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
809 {
810 	return security_ops->cred_alloc_blank(cred, gfp);
811 }
812 
security_cred_free(struct cred * cred)813 void security_cred_free(struct cred *cred)
814 {
815 	security_ops->cred_free(cred);
816 }
817 
security_prepare_creds(struct cred * new,const struct cred * old,gfp_t gfp)818 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
819 {
820 	return security_ops->cred_prepare(new, old, gfp);
821 }
822 
security_transfer_creds(struct cred * new,const struct cred * old)823 void security_transfer_creds(struct cred *new, const struct cred *old)
824 {
825 	security_ops->cred_transfer(new, old);
826 }
827 
security_kernel_act_as(struct cred * new,u32 secid)828 int security_kernel_act_as(struct cred *new, u32 secid)
829 {
830 	return security_ops->kernel_act_as(new, secid);
831 }
832 
security_kernel_create_files_as(struct cred * new,struct inode * inode)833 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
834 {
835 	return security_ops->kernel_create_files_as(new, inode);
836 }
837 
security_kernel_module_request(char * kmod_name)838 int security_kernel_module_request(char *kmod_name)
839 {
840 	return security_ops->kernel_module_request(kmod_name);
841 }
842 
security_kernel_module_from_file(struct file * file)843 int security_kernel_module_from_file(struct file *file)
844 {
845 	int ret;
846 
847 	ret = security_ops->kernel_module_from_file(file);
848 	if (ret)
849 		return ret;
850 	return ima_module_check(file);
851 }
852 
security_task_fix_setuid(struct cred * new,const struct cred * old,int flags)853 int security_task_fix_setuid(struct cred *new, const struct cred *old,
854 			     int flags)
855 {
856 	return security_ops->task_fix_setuid(new, old, flags);
857 }
858 
security_task_setpgid(struct task_struct * p,pid_t pgid)859 int security_task_setpgid(struct task_struct *p, pid_t pgid)
860 {
861 	return security_ops->task_setpgid(p, pgid);
862 }
863 
security_task_getpgid(struct task_struct * p)864 int security_task_getpgid(struct task_struct *p)
865 {
866 	return security_ops->task_getpgid(p);
867 }
868 
security_task_getsid(struct task_struct * p)869 int security_task_getsid(struct task_struct *p)
870 {
871 	return security_ops->task_getsid(p);
872 }
873 
security_task_getsecid(struct task_struct * p,u32 * secid)874 void security_task_getsecid(struct task_struct *p, u32 *secid)
875 {
876 	security_ops->task_getsecid(p, secid);
877 }
878 EXPORT_SYMBOL(security_task_getsecid);
879 
security_task_setnice(struct task_struct * p,int nice)880 int security_task_setnice(struct task_struct *p, int nice)
881 {
882 	return security_ops->task_setnice(p, nice);
883 }
884 
security_task_setioprio(struct task_struct * p,int ioprio)885 int security_task_setioprio(struct task_struct *p, int ioprio)
886 {
887 	return security_ops->task_setioprio(p, ioprio);
888 }
889 
security_task_getioprio(struct task_struct * p)890 int security_task_getioprio(struct task_struct *p)
891 {
892 	return security_ops->task_getioprio(p);
893 }
894 
security_task_setrlimit(struct task_struct * p,unsigned int resource,struct rlimit * new_rlim)895 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
896 		struct rlimit *new_rlim)
897 {
898 	return security_ops->task_setrlimit(p, resource, new_rlim);
899 }
900 
security_task_setscheduler(struct task_struct * p)901 int security_task_setscheduler(struct task_struct *p)
902 {
903 	return security_ops->task_setscheduler(p);
904 }
905 
security_task_getscheduler(struct task_struct * p)906 int security_task_getscheduler(struct task_struct *p)
907 {
908 	return security_ops->task_getscheduler(p);
909 }
910 
security_task_movememory(struct task_struct * p)911 int security_task_movememory(struct task_struct *p)
912 {
913 	return security_ops->task_movememory(p);
914 }
915 
security_task_kill(struct task_struct * p,struct siginfo * info,int sig,u32 secid)916 int security_task_kill(struct task_struct *p, struct siginfo *info,
917 			int sig, u32 secid)
918 {
919 	return security_ops->task_kill(p, info, sig, secid);
920 }
921 
security_task_wait(struct task_struct * p)922 int security_task_wait(struct task_struct *p)
923 {
924 	return security_ops->task_wait(p);
925 }
926 
security_task_prctl(int option,unsigned long arg2,unsigned long arg3,unsigned long arg4,unsigned long arg5)927 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
928 			 unsigned long arg4, unsigned long arg5)
929 {
930 #ifdef CONFIG_SECURITY_YAMA_STACKED
931 	int rc;
932 	rc = yama_task_prctl(option, arg2, arg3, arg4, arg5);
933 	if (rc != -ENOSYS)
934 		return rc;
935 #endif
936 	return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
937 }
938 
security_task_to_inode(struct task_struct * p,struct inode * inode)939 void security_task_to_inode(struct task_struct *p, struct inode *inode)
940 {
941 	security_ops->task_to_inode(p, inode);
942 }
943 
security_ipc_permission(struct kern_ipc_perm * ipcp,short flag)944 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
945 {
946 	return security_ops->ipc_permission(ipcp, flag);
947 }
948 
security_ipc_getsecid(struct kern_ipc_perm * ipcp,u32 * secid)949 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
950 {
951 	security_ops->ipc_getsecid(ipcp, secid);
952 }
953 
security_msg_msg_alloc(struct msg_msg * msg)954 int security_msg_msg_alloc(struct msg_msg *msg)
955 {
956 	return security_ops->msg_msg_alloc_security(msg);
957 }
958 
security_msg_msg_free(struct msg_msg * msg)959 void security_msg_msg_free(struct msg_msg *msg)
960 {
961 	security_ops->msg_msg_free_security(msg);
962 }
963 
security_msg_queue_alloc(struct msg_queue * msq)964 int security_msg_queue_alloc(struct msg_queue *msq)
965 {
966 	return security_ops->msg_queue_alloc_security(msq);
967 }
968 
security_msg_queue_free(struct msg_queue * msq)969 void security_msg_queue_free(struct msg_queue *msq)
970 {
971 	security_ops->msg_queue_free_security(msq);
972 }
973 
security_msg_queue_associate(struct msg_queue * msq,int msqflg)974 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
975 {
976 	return security_ops->msg_queue_associate(msq, msqflg);
977 }
978 
security_msg_queue_msgctl(struct msg_queue * msq,int cmd)979 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
980 {
981 	return security_ops->msg_queue_msgctl(msq, cmd);
982 }
983 
security_msg_queue_msgsnd(struct msg_queue * msq,struct msg_msg * msg,int msqflg)984 int security_msg_queue_msgsnd(struct msg_queue *msq,
985 			       struct msg_msg *msg, int msqflg)
986 {
987 	return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
988 }
989 
security_msg_queue_msgrcv(struct msg_queue * msq,struct msg_msg * msg,struct task_struct * target,long type,int mode)990 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
991 			       struct task_struct *target, long type, int mode)
992 {
993 	return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
994 }
995 
security_shm_alloc(struct shmid_kernel * shp)996 int security_shm_alloc(struct shmid_kernel *shp)
997 {
998 	return security_ops->shm_alloc_security(shp);
999 }
1000 
security_shm_free(struct shmid_kernel * shp)1001 void security_shm_free(struct shmid_kernel *shp)
1002 {
1003 	security_ops->shm_free_security(shp);
1004 }
1005 
security_shm_associate(struct shmid_kernel * shp,int shmflg)1006 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1007 {
1008 	return security_ops->shm_associate(shp, shmflg);
1009 }
1010 
security_shm_shmctl(struct shmid_kernel * shp,int cmd)1011 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1012 {
1013 	return security_ops->shm_shmctl(shp, cmd);
1014 }
1015 
security_shm_shmat(struct shmid_kernel * shp,char __user * shmaddr,int shmflg)1016 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1017 {
1018 	return security_ops->shm_shmat(shp, shmaddr, shmflg);
1019 }
1020 
security_sem_alloc(struct sem_array * sma)1021 int security_sem_alloc(struct sem_array *sma)
1022 {
1023 	return security_ops->sem_alloc_security(sma);
1024 }
1025 
security_sem_free(struct sem_array * sma)1026 void security_sem_free(struct sem_array *sma)
1027 {
1028 	security_ops->sem_free_security(sma);
1029 }
1030 
security_sem_associate(struct sem_array * sma,int semflg)1031 int security_sem_associate(struct sem_array *sma, int semflg)
1032 {
1033 	return security_ops->sem_associate(sma, semflg);
1034 }
1035 
security_sem_semctl(struct sem_array * sma,int cmd)1036 int security_sem_semctl(struct sem_array *sma, int cmd)
1037 {
1038 	return security_ops->sem_semctl(sma, cmd);
1039 }
1040 
security_sem_semop(struct sem_array * sma,struct sembuf * sops,unsigned nsops,int alter)1041 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1042 			unsigned nsops, int alter)
1043 {
1044 	return security_ops->sem_semop(sma, sops, nsops, alter);
1045 }
1046 
security_d_instantiate(struct dentry * dentry,struct inode * inode)1047 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1048 {
1049 	if (unlikely(inode && IS_PRIVATE(inode)))
1050 		return;
1051 	security_ops->d_instantiate(dentry, inode);
1052 }
1053 EXPORT_SYMBOL(security_d_instantiate);
1054 
security_getprocattr(struct task_struct * p,char * name,char ** value)1055 int security_getprocattr(struct task_struct *p, char *name, char **value)
1056 {
1057 	return security_ops->getprocattr(p, name, value);
1058 }
1059 
security_setprocattr(struct task_struct * p,char * name,void * value,size_t size)1060 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1061 {
1062 	return security_ops->setprocattr(p, name, value, size);
1063 }
1064 
security_netlink_send(struct sock * sk,struct sk_buff * skb)1065 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1066 {
1067 	return security_ops->netlink_send(sk, skb);
1068 }
1069 
security_secid_to_secctx(u32 secid,char ** secdata,u32 * seclen)1070 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1071 {
1072 	return security_ops->secid_to_secctx(secid, secdata, seclen);
1073 }
1074 EXPORT_SYMBOL(security_secid_to_secctx);
1075 
security_secctx_to_secid(const char * secdata,u32 seclen,u32 * secid)1076 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1077 {
1078 	return security_ops->secctx_to_secid(secdata, seclen, secid);
1079 }
1080 EXPORT_SYMBOL(security_secctx_to_secid);
1081 
security_release_secctx(char * secdata,u32 seclen)1082 void security_release_secctx(char *secdata, u32 seclen)
1083 {
1084 	security_ops->release_secctx(secdata, seclen);
1085 }
1086 EXPORT_SYMBOL(security_release_secctx);
1087 
security_inode_notifysecctx(struct inode * inode,void * ctx,u32 ctxlen)1088 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1089 {
1090 	return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
1091 }
1092 EXPORT_SYMBOL(security_inode_notifysecctx);
1093 
security_inode_setsecctx(struct dentry * dentry,void * ctx,u32 ctxlen)1094 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1095 {
1096 	return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1097 }
1098 EXPORT_SYMBOL(security_inode_setsecctx);
1099 
security_inode_getsecctx(struct inode * inode,void ** ctx,u32 * ctxlen)1100 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1101 {
1102 	return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1103 }
1104 EXPORT_SYMBOL(security_inode_getsecctx);
1105 
1106 #ifdef CONFIG_SECURITY_NETWORK
1107 
security_unix_stream_connect(struct sock * sock,struct sock * other,struct sock * newsk)1108 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1109 {
1110 	return security_ops->unix_stream_connect(sock, other, newsk);
1111 }
1112 EXPORT_SYMBOL(security_unix_stream_connect);
1113 
security_unix_may_send(struct socket * sock,struct socket * other)1114 int security_unix_may_send(struct socket *sock,  struct socket *other)
1115 {
1116 	return security_ops->unix_may_send(sock, other);
1117 }
1118 EXPORT_SYMBOL(security_unix_may_send);
1119 
security_socket_create(int family,int type,int protocol,int kern)1120 int security_socket_create(int family, int type, int protocol, int kern)
1121 {
1122 	return security_ops->socket_create(family, type, protocol, kern);
1123 }
1124 
security_socket_post_create(struct socket * sock,int family,int type,int protocol,int kern)1125 int security_socket_post_create(struct socket *sock, int family,
1126 				int type, int protocol, int kern)
1127 {
1128 	return security_ops->socket_post_create(sock, family, type,
1129 						protocol, kern);
1130 }
1131 
security_socket_bind(struct socket * sock,struct sockaddr * address,int addrlen)1132 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1133 {
1134 	return security_ops->socket_bind(sock, address, addrlen);
1135 }
1136 
security_socket_connect(struct socket * sock,struct sockaddr * address,int addrlen)1137 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1138 {
1139 	return security_ops->socket_connect(sock, address, addrlen);
1140 }
1141 
security_socket_listen(struct socket * sock,int backlog)1142 int security_socket_listen(struct socket *sock, int backlog)
1143 {
1144 	return security_ops->socket_listen(sock, backlog);
1145 }
1146 
security_socket_accept(struct socket * sock,struct socket * newsock)1147 int security_socket_accept(struct socket *sock, struct socket *newsock)
1148 {
1149 	return security_ops->socket_accept(sock, newsock);
1150 }
1151 
security_socket_sendmsg(struct socket * sock,struct msghdr * msg,int size)1152 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1153 {
1154 	return security_ops->socket_sendmsg(sock, msg, size);
1155 }
1156 
security_socket_recvmsg(struct socket * sock,struct msghdr * msg,int size,int flags)1157 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1158 			    int size, int flags)
1159 {
1160 	return security_ops->socket_recvmsg(sock, msg, size, flags);
1161 }
1162 
security_socket_getsockname(struct socket * sock)1163 int security_socket_getsockname(struct socket *sock)
1164 {
1165 	return security_ops->socket_getsockname(sock);
1166 }
1167 
security_socket_getpeername(struct socket * sock)1168 int security_socket_getpeername(struct socket *sock)
1169 {
1170 	return security_ops->socket_getpeername(sock);
1171 }
1172 
security_socket_getsockopt(struct socket * sock,int level,int optname)1173 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1174 {
1175 	return security_ops->socket_getsockopt(sock, level, optname);
1176 }
1177 
security_socket_setsockopt(struct socket * sock,int level,int optname)1178 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1179 {
1180 	return security_ops->socket_setsockopt(sock, level, optname);
1181 }
1182 
security_socket_shutdown(struct socket * sock,int how)1183 int security_socket_shutdown(struct socket *sock, int how)
1184 {
1185 	return security_ops->socket_shutdown(sock, how);
1186 }
1187 
security_sock_rcv_skb(struct sock * sk,struct sk_buff * skb)1188 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1189 {
1190 	return security_ops->socket_sock_rcv_skb(sk, skb);
1191 }
1192 EXPORT_SYMBOL(security_sock_rcv_skb);
1193 
security_socket_getpeersec_stream(struct socket * sock,char __user * optval,int __user * optlen,unsigned len)1194 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1195 				      int __user *optlen, unsigned len)
1196 {
1197 	return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1198 }
1199 
security_socket_getpeersec_dgram(struct socket * sock,struct sk_buff * skb,u32 * secid)1200 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1201 {
1202 	return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1203 }
1204 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1205 
security_sk_alloc(struct sock * sk,int family,gfp_t priority)1206 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1207 {
1208 	return security_ops->sk_alloc_security(sk, family, priority);
1209 }
1210 
security_sk_free(struct sock * sk)1211 void security_sk_free(struct sock *sk)
1212 {
1213 	security_ops->sk_free_security(sk);
1214 }
1215 
security_sk_clone(const struct sock * sk,struct sock * newsk)1216 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1217 {
1218 	security_ops->sk_clone_security(sk, newsk);
1219 }
1220 EXPORT_SYMBOL(security_sk_clone);
1221 
security_sk_classify_flow(struct sock * sk,struct flowi * fl)1222 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1223 {
1224 	security_ops->sk_getsecid(sk, &fl->flowi_secid);
1225 }
1226 EXPORT_SYMBOL(security_sk_classify_flow);
1227 
security_req_classify_flow(const struct request_sock * req,struct flowi * fl)1228 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1229 {
1230 	security_ops->req_classify_flow(req, fl);
1231 }
1232 EXPORT_SYMBOL(security_req_classify_flow);
1233 
security_sock_graft(struct sock * sk,struct socket * parent)1234 void security_sock_graft(struct sock *sk, struct socket *parent)
1235 {
1236 	security_ops->sock_graft(sk, parent);
1237 }
1238 EXPORT_SYMBOL(security_sock_graft);
1239 
security_inet_conn_request(struct sock * sk,struct sk_buff * skb,struct request_sock * req)1240 int security_inet_conn_request(struct sock *sk,
1241 			struct sk_buff *skb, struct request_sock *req)
1242 {
1243 	return security_ops->inet_conn_request(sk, skb, req);
1244 }
1245 EXPORT_SYMBOL(security_inet_conn_request);
1246 
security_inet_csk_clone(struct sock * newsk,const struct request_sock * req)1247 void security_inet_csk_clone(struct sock *newsk,
1248 			const struct request_sock *req)
1249 {
1250 	security_ops->inet_csk_clone(newsk, req);
1251 }
1252 
security_inet_conn_established(struct sock * sk,struct sk_buff * skb)1253 void security_inet_conn_established(struct sock *sk,
1254 			struct sk_buff *skb)
1255 {
1256 	security_ops->inet_conn_established(sk, skb);
1257 }
1258 
security_secmark_relabel_packet(u32 secid)1259 int security_secmark_relabel_packet(u32 secid)
1260 {
1261 	return security_ops->secmark_relabel_packet(secid);
1262 }
1263 EXPORT_SYMBOL(security_secmark_relabel_packet);
1264 
security_secmark_refcount_inc(void)1265 void security_secmark_refcount_inc(void)
1266 {
1267 	security_ops->secmark_refcount_inc();
1268 }
1269 EXPORT_SYMBOL(security_secmark_refcount_inc);
1270 
security_secmark_refcount_dec(void)1271 void security_secmark_refcount_dec(void)
1272 {
1273 	security_ops->secmark_refcount_dec();
1274 }
1275 EXPORT_SYMBOL(security_secmark_refcount_dec);
1276 
security_tun_dev_alloc_security(void ** security)1277 int security_tun_dev_alloc_security(void **security)
1278 {
1279 	return security_ops->tun_dev_alloc_security(security);
1280 }
1281 EXPORT_SYMBOL(security_tun_dev_alloc_security);
1282 
security_tun_dev_free_security(void * security)1283 void security_tun_dev_free_security(void *security)
1284 {
1285 	security_ops->tun_dev_free_security(security);
1286 }
1287 EXPORT_SYMBOL(security_tun_dev_free_security);
1288 
security_tun_dev_create(void)1289 int security_tun_dev_create(void)
1290 {
1291 	return security_ops->tun_dev_create();
1292 }
1293 EXPORT_SYMBOL(security_tun_dev_create);
1294 
security_tun_dev_attach_queue(void * security)1295 int security_tun_dev_attach_queue(void *security)
1296 {
1297 	return security_ops->tun_dev_attach_queue(security);
1298 }
1299 EXPORT_SYMBOL(security_tun_dev_attach_queue);
1300 
security_tun_dev_attach(struct sock * sk,void * security)1301 int security_tun_dev_attach(struct sock *sk, void *security)
1302 {
1303 	return security_ops->tun_dev_attach(sk, security);
1304 }
1305 EXPORT_SYMBOL(security_tun_dev_attach);
1306 
security_tun_dev_open(void * security)1307 int security_tun_dev_open(void *security)
1308 {
1309 	return security_ops->tun_dev_open(security);
1310 }
1311 EXPORT_SYMBOL(security_tun_dev_open);
1312 
security_skb_owned_by(struct sk_buff * skb,struct sock * sk)1313 void security_skb_owned_by(struct sk_buff *skb, struct sock *sk)
1314 {
1315 	security_ops->skb_owned_by(skb, sk);
1316 }
1317 
1318 #endif	/* CONFIG_SECURITY_NETWORK */
1319 
1320 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1321 
security_xfrm_policy_alloc(struct xfrm_sec_ctx ** ctxp,struct xfrm_user_sec_ctx * sec_ctx)1322 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1323 {
1324 	return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1325 }
1326 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1327 
security_xfrm_policy_clone(struct xfrm_sec_ctx * old_ctx,struct xfrm_sec_ctx ** new_ctxp)1328 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1329 			      struct xfrm_sec_ctx **new_ctxp)
1330 {
1331 	return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1332 }
1333 
security_xfrm_policy_free(struct xfrm_sec_ctx * ctx)1334 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1335 {
1336 	security_ops->xfrm_policy_free_security(ctx);
1337 }
1338 EXPORT_SYMBOL(security_xfrm_policy_free);
1339 
security_xfrm_policy_delete(struct xfrm_sec_ctx * ctx)1340 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1341 {
1342 	return security_ops->xfrm_policy_delete_security(ctx);
1343 }
1344 
security_xfrm_state_alloc(struct xfrm_state * x,struct xfrm_user_sec_ctx * sec_ctx)1345 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1346 {
1347 	return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1348 }
1349 EXPORT_SYMBOL(security_xfrm_state_alloc);
1350 
security_xfrm_state_alloc_acquire(struct xfrm_state * x,struct xfrm_sec_ctx * polsec,u32 secid)1351 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1352 				      struct xfrm_sec_ctx *polsec, u32 secid)
1353 {
1354 	if (!polsec)
1355 		return 0;
1356 	/*
1357 	 * We want the context to be taken from secid which is usually
1358 	 * from the sock.
1359 	 */
1360 	return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1361 }
1362 
security_xfrm_state_delete(struct xfrm_state * x)1363 int security_xfrm_state_delete(struct xfrm_state *x)
1364 {
1365 	return security_ops->xfrm_state_delete_security(x);
1366 }
1367 EXPORT_SYMBOL(security_xfrm_state_delete);
1368 
security_xfrm_state_free(struct xfrm_state * x)1369 void security_xfrm_state_free(struct xfrm_state *x)
1370 {
1371 	security_ops->xfrm_state_free_security(x);
1372 }
1373 
security_xfrm_policy_lookup(struct xfrm_sec_ctx * ctx,u32 fl_secid,u8 dir)1374 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1375 {
1376 	return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1377 }
1378 
security_xfrm_state_pol_flow_match(struct xfrm_state * x,struct xfrm_policy * xp,const struct flowi * fl)1379 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1380 				       struct xfrm_policy *xp,
1381 				       const struct flowi *fl)
1382 {
1383 	return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1384 }
1385 
security_xfrm_decode_session(struct sk_buff * skb,u32 * secid)1386 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1387 {
1388 	return security_ops->xfrm_decode_session(skb, secid, 1);
1389 }
1390 
security_skb_classify_flow(struct sk_buff * skb,struct flowi * fl)1391 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1392 {
1393 	int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1394 
1395 	BUG_ON(rc);
1396 }
1397 EXPORT_SYMBOL(security_skb_classify_flow);
1398 
1399 #endif	/* CONFIG_SECURITY_NETWORK_XFRM */
1400 
1401 #ifdef CONFIG_KEYS
1402 
security_key_alloc(struct key * key,const struct cred * cred,unsigned long flags)1403 int security_key_alloc(struct key *key, const struct cred *cred,
1404 		       unsigned long flags)
1405 {
1406 	return security_ops->key_alloc(key, cred, flags);
1407 }
1408 
security_key_free(struct key * key)1409 void security_key_free(struct key *key)
1410 {
1411 	security_ops->key_free(key);
1412 }
1413 
security_key_permission(key_ref_t key_ref,const struct cred * cred,key_perm_t perm)1414 int security_key_permission(key_ref_t key_ref,
1415 			    const struct cred *cred, key_perm_t perm)
1416 {
1417 	return security_ops->key_permission(key_ref, cred, perm);
1418 }
1419 
security_key_getsecurity(struct key * key,char ** _buffer)1420 int security_key_getsecurity(struct key *key, char **_buffer)
1421 {
1422 	return security_ops->key_getsecurity(key, _buffer);
1423 }
1424 
1425 #endif	/* CONFIG_KEYS */
1426 
1427 #ifdef CONFIG_AUDIT
1428 
security_audit_rule_init(u32 field,u32 op,char * rulestr,void ** lsmrule)1429 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1430 {
1431 	return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1432 }
1433 
security_audit_rule_known(struct audit_krule * krule)1434 int security_audit_rule_known(struct audit_krule *krule)
1435 {
1436 	return security_ops->audit_rule_known(krule);
1437 }
1438 
security_audit_rule_free(void * lsmrule)1439 void security_audit_rule_free(void *lsmrule)
1440 {
1441 	security_ops->audit_rule_free(lsmrule);
1442 }
1443 
security_audit_rule_match(u32 secid,u32 field,u32 op,void * lsmrule,struct audit_context * actx)1444 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1445 			      struct audit_context *actx)
1446 {
1447 	return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1448 }
1449 
1450 #endif /* CONFIG_AUDIT */
1451