blob: d953d251fdca709956252ddc147199658940e303 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Randy.Dunlapc59ede72006-01-11 12:17:46 -080014#include <linux/capability.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070015#include <linux/module.h>
16#include <linux/init.h>
17#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <linux/security.h>
19
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020020/* Boot-time LSM user choice */
21static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];
Linus Torvalds1da177e2005-04-16 15:20:36 -070022
Miklos Szeredi5915eb52008-07-03 20:56:05 +020023/* things that live in capability.c */
24extern struct security_operations default_security_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -070025extern void security_fixup_ops(struct security_operations *ops);
26
27struct security_operations *security_ops; /* Initialized to NULL */
Eric Parisa5ecbcb2008-01-31 15:11:22 -050028
29/* amount of vm to protect from userspace access */
30unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR;
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
32static inline int verify(struct security_operations *ops)
33{
34 /* verify the security_operations structure exists */
35 if (!ops)
36 return -EINVAL;
37 security_fixup_ops(ops);
38 return 0;
39}
40
41static void __init do_security_initcalls(void)
42{
43 initcall_t *call;
44 call = __security_initcall_start;
45 while (call < __security_initcall_end) {
46 (*call) ();
47 call++;
48 }
49}
50
51/**
52 * security_init - initializes the security framework
53 *
54 * This should be called early in the kernel initialization sequence.
55 */
56int __init security_init(void)
57{
James Morris20510f22007-10-16 23:31:32 -070058 printk(KERN_INFO "Security Framework initialized\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070059
Miklos Szeredi5915eb52008-07-03 20:56:05 +020060 security_fixup_ops(&default_security_ops);
61 security_ops = &default_security_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 do_security_initcalls();
63
64 return 0;
65}
66
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020067/* Save user chosen LSM */
68static int __init choose_lsm(char *str)
69{
70 strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
71 return 1;
72}
73__setup("security=", choose_lsm);
74
75/**
76 * security_module_enable - Load given security module on boot ?
77 * @ops: a pointer to the struct security_operations that is to be checked.
78 *
79 * Each LSM must pass this method before registering its own operations
80 * to avoid security registration races. This method may also be used
James Morris7cea51b2008-03-07 12:23:49 +110081 * to check if your LSM is currently loaded during kernel initialization.
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020082 *
83 * Return true if:
84 * -The passed LSM is the one chosen by user at boot time,
Randy Dunlap3f23d812008-08-17 21:44:22 -070085 * -or user didn't specify a specific LSM and we're the first to ask
86 * for registration permission,
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020087 * -or the passed LSM is currently loaded.
88 * Otherwise, return false.
89 */
90int __init security_module_enable(struct security_operations *ops)
91{
92 if (!*chosen_lsm)
93 strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX);
94 else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX))
95 return 0;
96
97 return 1;
98}
99
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100/**
101 * register_security - registers a security framework with the kernel
102 * @ops: a pointer to the struct security_options that is to be registered
103 *
Randy Dunlap3f23d812008-08-17 21:44:22 -0700104 * This function allows a security module to register itself with the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105 * kernel security subsystem. Some rudimentary checking is done on the @ops
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200106 * value passed to this function. You'll need to check first if your LSM
107 * is allowed to register its @ops by calling security_module_enable(@ops).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108 *
109 * If there is already a security module registered with the kernel,
Randy Dunlap3f23d812008-08-17 21:44:22 -0700110 * an error will be returned. Otherwise %0 is returned on success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 */
112int register_security(struct security_operations *ops)
113{
114 if (verify(ops)) {
115 printk(KERN_DEBUG "%s could not verify "
Harvey Harrisondd6f9532008-03-06 10:03:59 +1100116 "security_operations structure.\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 return -EINVAL;
118 }
119
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200120 if (security_ops != &default_security_ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 return -EAGAIN;
122
123 security_ops = ops;
124
125 return 0;
126}
127
James Morris20510f22007-10-16 23:31:32 -0700128/* Security operations */
129
Stephen Smalley006ebb42008-05-19 08:32:49 -0400130int security_ptrace(struct task_struct *parent, struct task_struct *child,
131 unsigned int mode)
James Morris20510f22007-10-16 23:31:32 -0700132{
Stephen Smalley006ebb42008-05-19 08:32:49 -0400133 return security_ops->ptrace(parent, child, mode);
James Morris20510f22007-10-16 23:31:32 -0700134}
135
136int security_capget(struct task_struct *target,
137 kernel_cap_t *effective,
138 kernel_cap_t *inheritable,
139 kernel_cap_t *permitted)
140{
141 return security_ops->capget(target, effective, inheritable, permitted);
142}
143
144int security_capset_check(struct task_struct *target,
145 kernel_cap_t *effective,
146 kernel_cap_t *inheritable,
147 kernel_cap_t *permitted)
148{
149 return security_ops->capset_check(target, effective, inheritable, permitted);
150}
151
152void security_capset_set(struct task_struct *target,
153 kernel_cap_t *effective,
154 kernel_cap_t *inheritable,
155 kernel_cap_t *permitted)
156{
157 security_ops->capset_set(target, effective, inheritable, permitted);
158}
159
160int security_capable(struct task_struct *tsk, int cap)
161{
162 return security_ops->capable(tsk, cap);
163}
164
165int security_acct(struct file *file)
166{
167 return security_ops->acct(file);
168}
169
170int security_sysctl(struct ctl_table *table, int op)
171{
172 return security_ops->sysctl(table, op);
173}
174
175int security_quotactl(int cmds, int type, int id, struct super_block *sb)
176{
177 return security_ops->quotactl(cmds, type, id, sb);
178}
179
180int security_quota_on(struct dentry *dentry)
181{
182 return security_ops->quota_on(dentry);
183}
184
185int security_syslog(int type)
186{
187 return security_ops->syslog(type);
188}
189
190int security_settime(struct timespec *ts, struct timezone *tz)
191{
192 return security_ops->settime(ts, tz);
193}
194
195int security_vm_enough_memory(long pages)
196{
197 return security_ops->vm_enough_memory(current->mm, pages);
198}
199
200int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
201{
202 return security_ops->vm_enough_memory(mm, pages);
203}
204
205int security_bprm_alloc(struct linux_binprm *bprm)
206{
207 return security_ops->bprm_alloc_security(bprm);
208}
209
210void security_bprm_free(struct linux_binprm *bprm)
211{
212 security_ops->bprm_free_security(bprm);
213}
214
215void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
216{
217 security_ops->bprm_apply_creds(bprm, unsafe);
218}
219
220void security_bprm_post_apply_creds(struct linux_binprm *bprm)
221{
222 security_ops->bprm_post_apply_creds(bprm);
223}
224
225int security_bprm_set(struct linux_binprm *bprm)
226{
227 return security_ops->bprm_set_security(bprm);
228}
229
230int security_bprm_check(struct linux_binprm *bprm)
231{
232 return security_ops->bprm_check_security(bprm);
233}
234
235int security_bprm_secureexec(struct linux_binprm *bprm)
236{
237 return security_ops->bprm_secureexec(bprm);
238}
239
240int security_sb_alloc(struct super_block *sb)
241{
242 return security_ops->sb_alloc_security(sb);
243}
244
245void security_sb_free(struct super_block *sb)
246{
247 security_ops->sb_free_security(sb);
248}
249
Eric Parise0007522008-03-05 10:31:54 -0500250int security_sb_copy_data(char *orig, char *copy)
James Morris20510f22007-10-16 23:31:32 -0700251{
Eric Parise0007522008-03-05 10:31:54 -0500252 return security_ops->sb_copy_data(orig, copy);
James Morris20510f22007-10-16 23:31:32 -0700253}
Eric Parise0007522008-03-05 10:31:54 -0500254EXPORT_SYMBOL(security_sb_copy_data);
James Morris20510f22007-10-16 23:31:32 -0700255
256int security_sb_kern_mount(struct super_block *sb, void *data)
257{
258 return security_ops->sb_kern_mount(sb, data);
259}
260
Eric Paris2069f452008-07-04 09:47:13 +1000261int security_sb_show_options(struct seq_file *m, struct super_block *sb)
262{
263 return security_ops->sb_show_options(m, sb);
264}
265
James Morris20510f22007-10-16 23:31:32 -0700266int security_sb_statfs(struct dentry *dentry)
267{
268 return security_ops->sb_statfs(dentry);
269}
270
Al Virob5266eb2008-03-22 17:48:24 -0400271int security_sb_mount(char *dev_name, struct path *path,
James Morris20510f22007-10-16 23:31:32 -0700272 char *type, unsigned long flags, void *data)
273{
Al Virob5266eb2008-03-22 17:48:24 -0400274 return security_ops->sb_mount(dev_name, path, type, flags, data);
James Morris20510f22007-10-16 23:31:32 -0700275}
276
Al Virob5266eb2008-03-22 17:48:24 -0400277int security_sb_check_sb(struct vfsmount *mnt, struct path *path)
James Morris20510f22007-10-16 23:31:32 -0700278{
Al Virob5266eb2008-03-22 17:48:24 -0400279 return security_ops->sb_check_sb(mnt, path);
James Morris20510f22007-10-16 23:31:32 -0700280}
281
282int security_sb_umount(struct vfsmount *mnt, int flags)
283{
284 return security_ops->sb_umount(mnt, flags);
285}
286
287void security_sb_umount_close(struct vfsmount *mnt)
288{
289 security_ops->sb_umount_close(mnt);
290}
291
292void security_sb_umount_busy(struct vfsmount *mnt)
293{
294 security_ops->sb_umount_busy(mnt);
295}
296
297void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data)
298{
299 security_ops->sb_post_remount(mnt, flags, data);
300}
301
Al Virob5266eb2008-03-22 17:48:24 -0400302void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint)
James Morris20510f22007-10-16 23:31:32 -0700303{
Al Virob5266eb2008-03-22 17:48:24 -0400304 security_ops->sb_post_addmount(mnt, mountpoint);
James Morris20510f22007-10-16 23:31:32 -0700305}
306
Al Virob5266eb2008-03-22 17:48:24 -0400307int security_sb_pivotroot(struct path *old_path, struct path *new_path)
James Morris20510f22007-10-16 23:31:32 -0700308{
Al Virob5266eb2008-03-22 17:48:24 -0400309 return security_ops->sb_pivotroot(old_path, new_path);
James Morris20510f22007-10-16 23:31:32 -0700310}
311
Al Virob5266eb2008-03-22 17:48:24 -0400312void security_sb_post_pivotroot(struct path *old_path, struct path *new_path)
James Morris20510f22007-10-16 23:31:32 -0700313{
Al Virob5266eb2008-03-22 17:48:24 -0400314 security_ops->sb_post_pivotroot(old_path, new_path);
James Morris20510f22007-10-16 23:31:32 -0700315}
316
Eric Parisc9180a52007-11-30 13:00:35 -0500317int security_sb_set_mnt_opts(struct super_block *sb,
Eric Parise0007522008-03-05 10:31:54 -0500318 struct security_mnt_opts *opts)
Eric Parisc9180a52007-11-30 13:00:35 -0500319{
Eric Parise0007522008-03-05 10:31:54 -0500320 return security_ops->sb_set_mnt_opts(sb, opts);
Eric Parisc9180a52007-11-30 13:00:35 -0500321}
Eric Parise0007522008-03-05 10:31:54 -0500322EXPORT_SYMBOL(security_sb_set_mnt_opts);
Eric Parisc9180a52007-11-30 13:00:35 -0500323
324void security_sb_clone_mnt_opts(const struct super_block *oldsb,
325 struct super_block *newsb)
326{
327 security_ops->sb_clone_mnt_opts(oldsb, newsb);
328}
Eric Parise0007522008-03-05 10:31:54 -0500329EXPORT_SYMBOL(security_sb_clone_mnt_opts);
330
331int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
332{
333 return security_ops->sb_parse_opts_str(options, opts);
334}
335EXPORT_SYMBOL(security_sb_parse_opts_str);
Eric Parisc9180a52007-11-30 13:00:35 -0500336
James Morris20510f22007-10-16 23:31:32 -0700337int security_inode_alloc(struct inode *inode)
338{
339 inode->i_security = NULL;
340 return security_ops->inode_alloc_security(inode);
341}
342
343void security_inode_free(struct inode *inode)
344{
345 security_ops->inode_free_security(inode);
346}
347
348int security_inode_init_security(struct inode *inode, struct inode *dir,
349 char **name, void **value, size_t *len)
350{
351 if (unlikely(IS_PRIVATE(inode)))
352 return -EOPNOTSUPP;
353 return security_ops->inode_init_security(inode, dir, name, value, len);
354}
355EXPORT_SYMBOL(security_inode_init_security);
356
357int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
358{
359 if (unlikely(IS_PRIVATE(dir)))
360 return 0;
361 return security_ops->inode_create(dir, dentry, mode);
362}
363
364int security_inode_link(struct dentry *old_dentry, struct inode *dir,
365 struct dentry *new_dentry)
366{
367 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
368 return 0;
369 return security_ops->inode_link(old_dentry, dir, new_dentry);
370}
371
372int security_inode_unlink(struct inode *dir, struct dentry *dentry)
373{
374 if (unlikely(IS_PRIVATE(dentry->d_inode)))
375 return 0;
376 return security_ops->inode_unlink(dir, dentry);
377}
378
379int security_inode_symlink(struct inode *dir, struct dentry *dentry,
380 const char *old_name)
381{
382 if (unlikely(IS_PRIVATE(dir)))
383 return 0;
384 return security_ops->inode_symlink(dir, dentry, old_name);
385}
386
387int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
388{
389 if (unlikely(IS_PRIVATE(dir)))
390 return 0;
391 return security_ops->inode_mkdir(dir, dentry, mode);
392}
393
394int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
395{
396 if (unlikely(IS_PRIVATE(dentry->d_inode)))
397 return 0;
398 return security_ops->inode_rmdir(dir, dentry);
399}
400
401int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
402{
403 if (unlikely(IS_PRIVATE(dir)))
404 return 0;
405 return security_ops->inode_mknod(dir, dentry, mode, dev);
406}
407
408int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
409 struct inode *new_dir, struct dentry *new_dentry)
410{
411 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
412 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
413 return 0;
414 return security_ops->inode_rename(old_dir, old_dentry,
415 new_dir, new_dentry);
416}
417
418int security_inode_readlink(struct dentry *dentry)
419{
420 if (unlikely(IS_PRIVATE(dentry->d_inode)))
421 return 0;
422 return security_ops->inode_readlink(dentry);
423}
424
425int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
426{
427 if (unlikely(IS_PRIVATE(dentry->d_inode)))
428 return 0;
429 return security_ops->inode_follow_link(dentry, nd);
430}
431
Al Virob77b0642008-07-17 09:37:02 -0400432int security_inode_permission(struct inode *inode, int mask)
James Morris20510f22007-10-16 23:31:32 -0700433{
434 if (unlikely(IS_PRIVATE(inode)))
435 return 0;
Al Virob77b0642008-07-17 09:37:02 -0400436 return security_ops->inode_permission(inode, mask);
James Morris20510f22007-10-16 23:31:32 -0700437}
438
439int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
440{
441 if (unlikely(IS_PRIVATE(dentry->d_inode)))
442 return 0;
443 return security_ops->inode_setattr(dentry, attr);
444}
Miklos Szeredib1da47e2008-07-01 15:01:28 +0200445EXPORT_SYMBOL_GPL(security_inode_setattr);
James Morris20510f22007-10-16 23:31:32 -0700446
447int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
448{
449 if (unlikely(IS_PRIVATE(dentry->d_inode)))
450 return 0;
451 return security_ops->inode_getattr(mnt, dentry);
452}
453
454void security_inode_delete(struct inode *inode)
455{
456 if (unlikely(IS_PRIVATE(inode)))
457 return;
458 security_ops->inode_delete(inode);
459}
460
David Howells8f0cfa52008-04-29 00:59:41 -0700461int security_inode_setxattr(struct dentry *dentry, const char *name,
462 const void *value, size_t size, int flags)
James Morris20510f22007-10-16 23:31:32 -0700463{
464 if (unlikely(IS_PRIVATE(dentry->d_inode)))
465 return 0;
466 return security_ops->inode_setxattr(dentry, name, value, size, flags);
467}
468
David Howells8f0cfa52008-04-29 00:59:41 -0700469void security_inode_post_setxattr(struct dentry *dentry, const char *name,
470 const void *value, size_t size, int flags)
James Morris20510f22007-10-16 23:31:32 -0700471{
472 if (unlikely(IS_PRIVATE(dentry->d_inode)))
473 return;
474 security_ops->inode_post_setxattr(dentry, name, value, size, flags);
475}
476
David Howells8f0cfa52008-04-29 00:59:41 -0700477int security_inode_getxattr(struct dentry *dentry, const char *name)
James Morris20510f22007-10-16 23:31:32 -0700478{
479 if (unlikely(IS_PRIVATE(dentry->d_inode)))
480 return 0;
481 return security_ops->inode_getxattr(dentry, name);
482}
483
484int security_inode_listxattr(struct dentry *dentry)
485{
486 if (unlikely(IS_PRIVATE(dentry->d_inode)))
487 return 0;
488 return security_ops->inode_listxattr(dentry);
489}
490
David Howells8f0cfa52008-04-29 00:59:41 -0700491int security_inode_removexattr(struct dentry *dentry, const char *name)
James Morris20510f22007-10-16 23:31:32 -0700492{
493 if (unlikely(IS_PRIVATE(dentry->d_inode)))
494 return 0;
495 return security_ops->inode_removexattr(dentry, name);
496}
497
Serge E. Hallynb5376772007-10-16 23:31:36 -0700498int security_inode_need_killpriv(struct dentry *dentry)
499{
500 return security_ops->inode_need_killpriv(dentry);
501}
502
503int security_inode_killpriv(struct dentry *dentry)
504{
505 return security_ops->inode_killpriv(dentry);
506}
507
David P. Quigley42492592008-02-04 22:29:39 -0800508int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
James Morris20510f22007-10-16 23:31:32 -0700509{
510 if (unlikely(IS_PRIVATE(inode)))
511 return 0;
David P. Quigley42492592008-02-04 22:29:39 -0800512 return security_ops->inode_getsecurity(inode, name, buffer, alloc);
James Morris20510f22007-10-16 23:31:32 -0700513}
514
515int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
516{
517 if (unlikely(IS_PRIVATE(inode)))
518 return 0;
519 return security_ops->inode_setsecurity(inode, name, value, size, flags);
520}
521
522int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
523{
524 if (unlikely(IS_PRIVATE(inode)))
525 return 0;
526 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
527}
528
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200529void security_inode_getsecid(const struct inode *inode, u32 *secid)
530{
531 security_ops->inode_getsecid(inode, secid);
532}
533
James Morris20510f22007-10-16 23:31:32 -0700534int security_file_permission(struct file *file, int mask)
535{
536 return security_ops->file_permission(file, mask);
537}
538
539int security_file_alloc(struct file *file)
540{
541 return security_ops->file_alloc_security(file);
542}
543
544void security_file_free(struct file *file)
545{
546 security_ops->file_free_security(file);
547}
548
549int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
550{
551 return security_ops->file_ioctl(file, cmd, arg);
552}
553
554int security_file_mmap(struct file *file, unsigned long reqprot,
555 unsigned long prot, unsigned long flags,
556 unsigned long addr, unsigned long addr_only)
557{
558 return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
559}
560
561int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
562 unsigned long prot)
563{
564 return security_ops->file_mprotect(vma, reqprot, prot);
565}
566
567int security_file_lock(struct file *file, unsigned int cmd)
568{
569 return security_ops->file_lock(file, cmd);
570}
571
572int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
573{
574 return security_ops->file_fcntl(file, cmd, arg);
575}
576
577int security_file_set_fowner(struct file *file)
578{
579 return security_ops->file_set_fowner(file);
580}
581
582int security_file_send_sigiotask(struct task_struct *tsk,
583 struct fown_struct *fown, int sig)
584{
585 return security_ops->file_send_sigiotask(tsk, fown, sig);
586}
587
588int security_file_receive(struct file *file)
589{
590 return security_ops->file_receive(file);
591}
592
593int security_dentry_open(struct file *file)
594{
595 return security_ops->dentry_open(file);
596}
597
598int security_task_create(unsigned long clone_flags)
599{
600 return security_ops->task_create(clone_flags);
601}
602
603int security_task_alloc(struct task_struct *p)
604{
605 return security_ops->task_alloc_security(p);
606}
607
608void security_task_free(struct task_struct *p)
609{
610 security_ops->task_free_security(p);
611}
612
613int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
614{
615 return security_ops->task_setuid(id0, id1, id2, flags);
616}
617
618int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
619 uid_t old_suid, int flags)
620{
621 return security_ops->task_post_setuid(old_ruid, old_euid, old_suid, flags);
622}
623
624int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
625{
626 return security_ops->task_setgid(id0, id1, id2, flags);
627}
628
629int security_task_setpgid(struct task_struct *p, pid_t pgid)
630{
631 return security_ops->task_setpgid(p, pgid);
632}
633
634int security_task_getpgid(struct task_struct *p)
635{
636 return security_ops->task_getpgid(p);
637}
638
639int security_task_getsid(struct task_struct *p)
640{
641 return security_ops->task_getsid(p);
642}
643
644void security_task_getsecid(struct task_struct *p, u32 *secid)
645{
646 security_ops->task_getsecid(p, secid);
647}
648EXPORT_SYMBOL(security_task_getsecid);
649
650int security_task_setgroups(struct group_info *group_info)
651{
652 return security_ops->task_setgroups(group_info);
653}
654
655int security_task_setnice(struct task_struct *p, int nice)
656{
657 return security_ops->task_setnice(p, nice);
658}
659
660int security_task_setioprio(struct task_struct *p, int ioprio)
661{
662 return security_ops->task_setioprio(p, ioprio);
663}
664
665int security_task_getioprio(struct task_struct *p)
666{
667 return security_ops->task_getioprio(p);
668}
669
670int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
671{
672 return security_ops->task_setrlimit(resource, new_rlim);
673}
674
675int security_task_setscheduler(struct task_struct *p,
676 int policy, struct sched_param *lp)
677{
678 return security_ops->task_setscheduler(p, policy, lp);
679}
680
681int security_task_getscheduler(struct task_struct *p)
682{
683 return security_ops->task_getscheduler(p);
684}
685
686int security_task_movememory(struct task_struct *p)
687{
688 return security_ops->task_movememory(p);
689}
690
691int security_task_kill(struct task_struct *p, struct siginfo *info,
692 int sig, u32 secid)
693{
694 return security_ops->task_kill(p, info, sig, secid);
695}
696
697int security_task_wait(struct task_struct *p)
698{
699 return security_ops->task_wait(p);
700}
701
702int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -0700703 unsigned long arg4, unsigned long arg5, long *rc_p)
James Morris20510f22007-10-16 23:31:32 -0700704{
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -0700705 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5, rc_p);
James Morris20510f22007-10-16 23:31:32 -0700706}
707
708void security_task_reparent_to_init(struct task_struct *p)
709{
710 security_ops->task_reparent_to_init(p);
711}
712
713void security_task_to_inode(struct task_struct *p, struct inode *inode)
714{
715 security_ops->task_to_inode(p, inode);
716}
717
718int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
719{
720 return security_ops->ipc_permission(ipcp, flag);
721}
722
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200723void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
724{
725 security_ops->ipc_getsecid(ipcp, secid);
726}
727
James Morris20510f22007-10-16 23:31:32 -0700728int security_msg_msg_alloc(struct msg_msg *msg)
729{
730 return security_ops->msg_msg_alloc_security(msg);
731}
732
733void security_msg_msg_free(struct msg_msg *msg)
734{
735 security_ops->msg_msg_free_security(msg);
736}
737
738int security_msg_queue_alloc(struct msg_queue *msq)
739{
740 return security_ops->msg_queue_alloc_security(msq);
741}
742
743void security_msg_queue_free(struct msg_queue *msq)
744{
745 security_ops->msg_queue_free_security(msq);
746}
747
748int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
749{
750 return security_ops->msg_queue_associate(msq, msqflg);
751}
752
753int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
754{
755 return security_ops->msg_queue_msgctl(msq, cmd);
756}
757
758int security_msg_queue_msgsnd(struct msg_queue *msq,
759 struct msg_msg *msg, int msqflg)
760{
761 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
762}
763
764int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
765 struct task_struct *target, long type, int mode)
766{
767 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
768}
769
770int security_shm_alloc(struct shmid_kernel *shp)
771{
772 return security_ops->shm_alloc_security(shp);
773}
774
775void security_shm_free(struct shmid_kernel *shp)
776{
777 security_ops->shm_free_security(shp);
778}
779
780int security_shm_associate(struct shmid_kernel *shp, int shmflg)
781{
782 return security_ops->shm_associate(shp, shmflg);
783}
784
785int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
786{
787 return security_ops->shm_shmctl(shp, cmd);
788}
789
790int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
791{
792 return security_ops->shm_shmat(shp, shmaddr, shmflg);
793}
794
795int security_sem_alloc(struct sem_array *sma)
796{
797 return security_ops->sem_alloc_security(sma);
798}
799
800void security_sem_free(struct sem_array *sma)
801{
802 security_ops->sem_free_security(sma);
803}
804
805int security_sem_associate(struct sem_array *sma, int semflg)
806{
807 return security_ops->sem_associate(sma, semflg);
808}
809
810int security_sem_semctl(struct sem_array *sma, int cmd)
811{
812 return security_ops->sem_semctl(sma, cmd);
813}
814
815int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
816 unsigned nsops, int alter)
817{
818 return security_ops->sem_semop(sma, sops, nsops, alter);
819}
820
821void security_d_instantiate(struct dentry *dentry, struct inode *inode)
822{
823 if (unlikely(inode && IS_PRIVATE(inode)))
824 return;
825 security_ops->d_instantiate(dentry, inode);
826}
827EXPORT_SYMBOL(security_d_instantiate);
828
829int security_getprocattr(struct task_struct *p, char *name, char **value)
830{
831 return security_ops->getprocattr(p, name, value);
832}
833
834int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
835{
836 return security_ops->setprocattr(p, name, value, size);
837}
838
839int security_netlink_send(struct sock *sk, struct sk_buff *skb)
840{
841 return security_ops->netlink_send(sk, skb);
842}
James Morris20510f22007-10-16 23:31:32 -0700843
844int security_netlink_recv(struct sk_buff *skb, int cap)
845{
846 return security_ops->netlink_recv(skb, cap);
847}
848EXPORT_SYMBOL(security_netlink_recv);
849
850int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
851{
852 return security_ops->secid_to_secctx(secid, secdata, seclen);
853}
854EXPORT_SYMBOL(security_secid_to_secctx);
855
David Howells7bf570d2008-04-29 20:52:51 +0100856int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
David Howells63cb3442008-01-15 23:47:35 +0000857{
858 return security_ops->secctx_to_secid(secdata, seclen, secid);
859}
860EXPORT_SYMBOL(security_secctx_to_secid);
861
James Morris20510f22007-10-16 23:31:32 -0700862void security_release_secctx(char *secdata, u32 seclen)
863{
James Morris65fc7662008-06-12 01:00:10 +1000864 security_ops->release_secctx(secdata, seclen);
James Morris20510f22007-10-16 23:31:32 -0700865}
866EXPORT_SYMBOL(security_release_secctx);
867
868#ifdef CONFIG_SECURITY_NETWORK
869
870int security_unix_stream_connect(struct socket *sock, struct socket *other,
871 struct sock *newsk)
872{
873 return security_ops->unix_stream_connect(sock, other, newsk);
874}
875EXPORT_SYMBOL(security_unix_stream_connect);
876
877int security_unix_may_send(struct socket *sock, struct socket *other)
878{
879 return security_ops->unix_may_send(sock, other);
880}
881EXPORT_SYMBOL(security_unix_may_send);
882
883int security_socket_create(int family, int type, int protocol, int kern)
884{
885 return security_ops->socket_create(family, type, protocol, kern);
886}
887
888int security_socket_post_create(struct socket *sock, int family,
889 int type, int protocol, int kern)
890{
891 return security_ops->socket_post_create(sock, family, type,
892 protocol, kern);
893}
894
895int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
896{
897 return security_ops->socket_bind(sock, address, addrlen);
898}
899
900int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
901{
902 return security_ops->socket_connect(sock, address, addrlen);
903}
904
905int security_socket_listen(struct socket *sock, int backlog)
906{
907 return security_ops->socket_listen(sock, backlog);
908}
909
910int security_socket_accept(struct socket *sock, struct socket *newsock)
911{
912 return security_ops->socket_accept(sock, newsock);
913}
914
915void security_socket_post_accept(struct socket *sock, struct socket *newsock)
916{
917 security_ops->socket_post_accept(sock, newsock);
918}
919
920int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
921{
922 return security_ops->socket_sendmsg(sock, msg, size);
923}
924
925int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
926 int size, int flags)
927{
928 return security_ops->socket_recvmsg(sock, msg, size, flags);
929}
930
931int security_socket_getsockname(struct socket *sock)
932{
933 return security_ops->socket_getsockname(sock);
934}
935
936int security_socket_getpeername(struct socket *sock)
937{
938 return security_ops->socket_getpeername(sock);
939}
940
941int security_socket_getsockopt(struct socket *sock, int level, int optname)
942{
943 return security_ops->socket_getsockopt(sock, level, optname);
944}
945
946int security_socket_setsockopt(struct socket *sock, int level, int optname)
947{
948 return security_ops->socket_setsockopt(sock, level, optname);
949}
950
951int security_socket_shutdown(struct socket *sock, int how)
952{
953 return security_ops->socket_shutdown(sock, how);
954}
955
956int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
957{
958 return security_ops->socket_sock_rcv_skb(sk, skb);
959}
960EXPORT_SYMBOL(security_sock_rcv_skb);
961
962int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
963 int __user *optlen, unsigned len)
964{
965 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
966}
967
968int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
969{
970 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
971}
972EXPORT_SYMBOL(security_socket_getpeersec_dgram);
973
974int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
975{
976 return security_ops->sk_alloc_security(sk, family, priority);
977}
978
979void security_sk_free(struct sock *sk)
980{
James Morris65fc7662008-06-12 01:00:10 +1000981 security_ops->sk_free_security(sk);
James Morris20510f22007-10-16 23:31:32 -0700982}
983
984void security_sk_clone(const struct sock *sk, struct sock *newsk)
985{
James Morris65fc7662008-06-12 01:00:10 +1000986 security_ops->sk_clone_security(sk, newsk);
James Morris20510f22007-10-16 23:31:32 -0700987}
988
989void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
990{
991 security_ops->sk_getsecid(sk, &fl->secid);
992}
993EXPORT_SYMBOL(security_sk_classify_flow);
994
995void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
996{
997 security_ops->req_classify_flow(req, fl);
998}
999EXPORT_SYMBOL(security_req_classify_flow);
1000
1001void security_sock_graft(struct sock *sk, struct socket *parent)
1002{
1003 security_ops->sock_graft(sk, parent);
1004}
1005EXPORT_SYMBOL(security_sock_graft);
1006
1007int security_inet_conn_request(struct sock *sk,
1008 struct sk_buff *skb, struct request_sock *req)
1009{
1010 return security_ops->inet_conn_request(sk, skb, req);
1011}
1012EXPORT_SYMBOL(security_inet_conn_request);
1013
1014void security_inet_csk_clone(struct sock *newsk,
1015 const struct request_sock *req)
1016{
1017 security_ops->inet_csk_clone(newsk, req);
1018}
1019
1020void security_inet_conn_established(struct sock *sk,
1021 struct sk_buff *skb)
1022{
1023 security_ops->inet_conn_established(sk, skb);
1024}
1025
1026#endif /* CONFIG_SECURITY_NETWORK */
1027
1028#ifdef CONFIG_SECURITY_NETWORK_XFRM
1029
Paul Moore03e1ad72008-04-12 19:07:52 -07001030int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
James Morris20510f22007-10-16 23:31:32 -07001031{
Paul Moore03e1ad72008-04-12 19:07:52 -07001032 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
James Morris20510f22007-10-16 23:31:32 -07001033}
1034EXPORT_SYMBOL(security_xfrm_policy_alloc);
1035
Paul Moore03e1ad72008-04-12 19:07:52 -07001036int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1037 struct xfrm_sec_ctx **new_ctxp)
James Morris20510f22007-10-16 23:31:32 -07001038{
Paul Moore03e1ad72008-04-12 19:07:52 -07001039 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
James Morris20510f22007-10-16 23:31:32 -07001040}
1041
Paul Moore03e1ad72008-04-12 19:07:52 -07001042void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
James Morris20510f22007-10-16 23:31:32 -07001043{
Paul Moore03e1ad72008-04-12 19:07:52 -07001044 security_ops->xfrm_policy_free_security(ctx);
James Morris20510f22007-10-16 23:31:32 -07001045}
1046EXPORT_SYMBOL(security_xfrm_policy_free);
1047
Paul Moore03e1ad72008-04-12 19:07:52 -07001048int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
James Morris20510f22007-10-16 23:31:32 -07001049{
Paul Moore03e1ad72008-04-12 19:07:52 -07001050 return security_ops->xfrm_policy_delete_security(ctx);
James Morris20510f22007-10-16 23:31:32 -07001051}
1052
1053int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1054{
1055 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1056}
1057EXPORT_SYMBOL(security_xfrm_state_alloc);
1058
1059int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1060 struct xfrm_sec_ctx *polsec, u32 secid)
1061{
1062 if (!polsec)
1063 return 0;
1064 /*
1065 * We want the context to be taken from secid which is usually
1066 * from the sock.
1067 */
1068 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1069}
1070
1071int security_xfrm_state_delete(struct xfrm_state *x)
1072{
1073 return security_ops->xfrm_state_delete_security(x);
1074}
1075EXPORT_SYMBOL(security_xfrm_state_delete);
1076
1077void security_xfrm_state_free(struct xfrm_state *x)
1078{
1079 security_ops->xfrm_state_free_security(x);
1080}
1081
Paul Moore03e1ad72008-04-12 19:07:52 -07001082int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
James Morris20510f22007-10-16 23:31:32 -07001083{
Paul Moore03e1ad72008-04-12 19:07:52 -07001084 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
James Morris20510f22007-10-16 23:31:32 -07001085}
1086
1087int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1088 struct xfrm_policy *xp, struct flowi *fl)
1089{
1090 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1091}
1092
1093int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1094{
1095 return security_ops->xfrm_decode_session(skb, secid, 1);
1096}
1097
1098void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1099{
1100 int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1101
1102 BUG_ON(rc);
1103}
1104EXPORT_SYMBOL(security_skb_classify_flow);
1105
1106#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1107
1108#ifdef CONFIG_KEYS
1109
1110int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags)
1111{
1112 return security_ops->key_alloc(key, tsk, flags);
1113}
1114
1115void security_key_free(struct key *key)
1116{
1117 security_ops->key_free(key);
1118}
1119
1120int security_key_permission(key_ref_t key_ref,
1121 struct task_struct *context, key_perm_t perm)
1122{
1123 return security_ops->key_permission(key_ref, context, perm);
1124}
1125
David Howells70a5bb72008-04-29 01:01:26 -07001126int security_key_getsecurity(struct key *key, char **_buffer)
1127{
1128 return security_ops->key_getsecurity(key, _buffer);
1129}
1130
James Morris20510f22007-10-16 23:31:32 -07001131#endif /* CONFIG_KEYS */
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001132
1133#ifdef CONFIG_AUDIT
1134
1135int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1136{
1137 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1138}
1139
1140int security_audit_rule_known(struct audit_krule *krule)
1141{
1142 return security_ops->audit_rule_known(krule);
1143}
1144
1145void security_audit_rule_free(void *lsmrule)
1146{
1147 security_ops->audit_rule_free(lsmrule);
1148}
1149
1150int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1151 struct audit_context *actx)
1152{
1153 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1154}
1155
1156#endif /* CONFIG_AUDIT */