blob: 8dcd4ae10a5fba06086ed31998c78c77ec32469c [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>
Mimi Zoharf381c272011-03-09 14:13:22 -050019#include <linux/integrity.h>
Mimi Zohar6c21a7f2009-10-22 17:30:13 -040020#include <linux/ima.h>
Mimi Zohar3e1be522011-03-09 14:38:26 -050021#include <linux/evm.h>
Al Viro40401532012-02-13 03:58:52 +000022#include <linux/fsnotify.h>
Al Viro8b3ec682012-05-30 17:11:23 -040023#include <linux/mman.h>
24#include <linux/mount.h>
25#include <linux/personality.h>
Paul Mundt75331a52012-07-02 14:34:11 +090026#include <linux/backing-dev.h>
Al Viro40401532012-02-13 03:58:52 +000027#include <net/flow.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070028
Mimi Zohar823eb1c2011-06-15 21:19:10 -040029#define MAX_LSM_EVM_XATTR 2
Linus Torvalds1da177e2005-04-16 15:20:36 -070030
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020031/* Boot-time LSM user choice */
John Johansen6e65f922009-11-05 17:03:20 -080032static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
33 CONFIG_DEFAULT_SECURITY;
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
wzt.wzt@gmail.com189b3b12010-02-23 23:15:28 +080035static struct security_operations *security_ops;
36static struct security_operations default_security_ops = {
37 .name = "default",
38};
Eric Parisa5ecbcb2008-01-31 15:11:22 -050039
Tetsuo Handac80901f2010-05-14 12:01:26 +090040static inline int __init verify(struct security_operations *ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -070041{
42 /* verify the security_operations structure exists */
43 if (!ops)
44 return -EINVAL;
45 security_fixup_ops(ops);
46 return 0;
47}
48
49static 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 */
64int __init security_init(void)
65{
James Morris20510f22007-10-16 23:31:32 -070066 printk(KERN_INFO "Security Framework initialized\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070067
Miklos Szeredi5915eb52008-07-03 20:56:05 +020068 security_fixup_ops(&default_security_ops);
69 security_ops = &default_security_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 do_security_initcalls();
71
72 return 0;
73}
74
wzt.wzt@gmail.com189b3b12010-02-23 23:15:28 +080075void reset_security_ops(void)
76{
77 security_ops = &default_security_ops;
78}
79
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020080/* Save user chosen LSM */
81static 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
James Morris7cea51b2008-03-07 12:23:49 +110094 * to check if your LSM is currently loaded during kernel initialization.
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020095 *
96 * Return true if:
97 * -The passed LSM is the one chosen by user at boot time,
John Johansen6e65f922009-11-05 17:03:20 -080098 * -or the passed LSM is configured as the default and the user did not
Tetsuo Handa065d78a2010-08-28 14:58:44 +090099 * choose an alternate LSM at boot time.
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200100 * Otherwise, return false.
101 */
102int __init security_module_enable(struct security_operations *ops)
103{
Tetsuo Handa065d78a2010-08-28 14:58:44 +0900104 return !strcmp(ops->name, chosen_lsm);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200105}
106
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107/**
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 *
Randy Dunlap3f23d812008-08-17 21:44:22 -0700111 * This function allows a security module to register itself with the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 * kernel security subsystem. Some rudimentary checking is done on the @ops
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200113 * 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).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 *
116 * If there is already a security module registered with the kernel,
Randy Dunlap3f23d812008-08-17 21:44:22 -0700117 * an error will be returned. Otherwise %0 is returned on success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 */
wzt.wzt@gmail.comc1e992b2010-02-26 22:49:55 +0800119int __init register_security(struct security_operations *ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120{
121 if (verify(ops)) {
122 printk(KERN_DEBUG "%s could not verify "
Harvey Harrisondd6f9532008-03-06 10:03:59 +1100123 "security_operations structure.\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 return -EINVAL;
125 }
126
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200127 if (security_ops != &default_security_ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128 return -EAGAIN;
129
130 security_ops = ops;
131
132 return 0;
133}
134
James Morris20510f22007-10-16 23:31:32 -0700135/* Security operations */
136
Ingo Molnar9e488582009-05-07 19:26:19 +1000137int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
James Morris20510f22007-10-16 23:31:32 -0700138{
Kees Cookc6993e42012-09-04 13:32:13 -0700139#ifdef CONFIG_SECURITY_YAMA_STACKED
140 int rc;
141 rc = yama_ptrace_access_check(child, mode);
142 if (rc)
143 return rc;
144#endif
Ingo Molnar9e488582009-05-07 19:26:19 +1000145 return security_ops->ptrace_access_check(child, mode);
David Howells5cd9c582008-08-14 11:37:28 +0100146}
147
148int security_ptrace_traceme(struct task_struct *parent)
149{
Kees Cookc6993e42012-09-04 13:32:13 -0700150#ifdef CONFIG_SECURITY_YAMA_STACKED
151 int rc;
152 rc = yama_ptrace_traceme(parent);
153 if (rc)
154 return rc;
155#endif
David Howells5cd9c582008-08-14 11:37:28 +0100156 return security_ops->ptrace_traceme(parent);
James Morris20510f22007-10-16 23:31:32 -0700157}
158
159int security_capget(struct task_struct *target,
160 kernel_cap_t *effective,
161 kernel_cap_t *inheritable,
162 kernel_cap_t *permitted)
163{
164 return security_ops->capget(target, effective, inheritable, permitted);
165}
166
David Howellsd84f4f92008-11-14 10:39:23 +1100167int security_capset(struct cred *new, const struct cred *old,
168 const kernel_cap_t *effective,
169 const kernel_cap_t *inheritable,
170 const kernel_cap_t *permitted)
James Morris20510f22007-10-16 23:31:32 -0700171{
David Howellsd84f4f92008-11-14 10:39:23 +1100172 return security_ops->capset(new, old,
173 effective, inheritable, permitted);
James Morris20510f22007-10-16 23:31:32 -0700174}
175
Eric Parisb7e724d2012-01-03 12:25:15 -0500176int security_capable(const struct cred *cred, struct user_namespace *ns,
Serge E. Hallyn34867402011-03-23 16:43:17 -0700177 int cap)
James Morris20510f22007-10-16 23:31:32 -0700178{
Eric Paris6a9de492012-01-03 12:25:14 -0500179 return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
Eric Paris06112162008-11-11 22:02:50 +1100180}
181
Eric Parisc7eba4a2012-01-03 12:25:15 -0500182int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
183 int cap)
Eric Paris06112162008-11-11 22:02:50 +1100184{
Eric Parisc7eba4a2012-01-03 12:25:15 -0500185 return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
James Morris20510f22007-10-16 23:31:32 -0700186}
187
James Morris20510f22007-10-16 23:31:32 -0700188int security_quotactl(int cmds, int type, int id, struct super_block *sb)
189{
190 return security_ops->quotactl(cmds, type, id, sb);
191}
192
193int security_quota_on(struct dentry *dentry)
194{
195 return security_ops->quota_on(dentry);
196}
197
Eric Paris12b30522010-11-15 18:36:29 -0500198int security_syslog(int type)
James Morris20510f22007-10-16 23:31:32 -0700199{
Eric Paris12b30522010-11-15 18:36:29 -0500200 return security_ops->syslog(type);
James Morris20510f22007-10-16 23:31:32 -0700201}
202
Richard Cochran1e6d7672011-02-01 13:50:58 +0000203int security_settime(const struct timespec *ts, const struct timezone *tz)
James Morris20510f22007-10-16 23:31:32 -0700204{
205 return security_ops->settime(ts, tz);
206}
207
James Morris20510f22007-10-16 23:31:32 -0700208int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
209{
210 return security_ops->vm_enough_memory(mm, pages);
211}
212
David Howellsa6f76f22008-11-14 10:39:24 +1100213int security_bprm_set_creds(struct linux_binprm *bprm)
James Morris20510f22007-10-16 23:31:32 -0700214{
David Howellsa6f76f22008-11-14 10:39:24 +1100215 return security_ops->bprm_set_creds(bprm);
James Morris20510f22007-10-16 23:31:32 -0700216}
217
218int security_bprm_check(struct linux_binprm *bprm)
219{
Mimi Zohar6c21a7f2009-10-22 17:30:13 -0400220 int ret;
221
222 ret = security_ops->bprm_check_security(bprm);
223 if (ret)
224 return ret;
225 return ima_bprm_check(bprm);
James Morris20510f22007-10-16 23:31:32 -0700226}
227
David Howellsa6f76f22008-11-14 10:39:24 +1100228void security_bprm_committing_creds(struct linux_binprm *bprm)
229{
Hannes Eder200036c2008-11-24 22:14:43 +0100230 security_ops->bprm_committing_creds(bprm);
David Howellsa6f76f22008-11-14 10:39:24 +1100231}
232
233void security_bprm_committed_creds(struct linux_binprm *bprm)
234{
Hannes Eder200036c2008-11-24 22:14:43 +0100235 security_ops->bprm_committed_creds(bprm);
David Howellsa6f76f22008-11-14 10:39:24 +1100236}
237
James Morris20510f22007-10-16 23:31:32 -0700238int security_bprm_secureexec(struct linux_binprm *bprm)
239{
240 return security_ops->bprm_secureexec(bprm);
241}
242
243int security_sb_alloc(struct super_block *sb)
244{
245 return security_ops->sb_alloc_security(sb);
246}
247
248void security_sb_free(struct super_block *sb)
249{
250 security_ops->sb_free_security(sb);
251}
252
Eric Parise0007522008-03-05 10:31:54 -0500253int security_sb_copy_data(char *orig, char *copy)
James Morris20510f22007-10-16 23:31:32 -0700254{
Eric Parise0007522008-03-05 10:31:54 -0500255 return security_ops->sb_copy_data(orig, copy);
James Morris20510f22007-10-16 23:31:32 -0700256}
Eric Parise0007522008-03-05 10:31:54 -0500257EXPORT_SYMBOL(security_sb_copy_data);
James Morris20510f22007-10-16 23:31:32 -0700258
Eric Parisff36fe22011-03-03 16:09:14 -0500259int security_sb_remount(struct super_block *sb, void *data)
260{
261 return security_ops->sb_remount(sb, data);
262}
263
James Morris12204e22008-12-19 10:44:42 +1100264int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
James Morris20510f22007-10-16 23:31:32 -0700265{
James Morris12204e22008-12-19 10:44:42 +1100266 return security_ops->sb_kern_mount(sb, flags, data);
James Morris20510f22007-10-16 23:31:32 -0700267}
268
Eric Paris2069f452008-07-04 09:47:13 +1000269int security_sb_show_options(struct seq_file *m, struct super_block *sb)
270{
271 return security_ops->sb_show_options(m, sb);
272}
273
James Morris20510f22007-10-16 23:31:32 -0700274int security_sb_statfs(struct dentry *dentry)
275{
276 return security_ops->sb_statfs(dentry);
277}
278
Al Viro808d4e32012-10-11 11:42:01 -0400279int security_sb_mount(const char *dev_name, struct path *path,
280 const char *type, unsigned long flags, void *data)
James Morris20510f22007-10-16 23:31:32 -0700281{
Al Virob5266eb2008-03-22 17:48:24 -0400282 return security_ops->sb_mount(dev_name, path, type, flags, data);
James Morris20510f22007-10-16 23:31:32 -0700283}
284
James Morris20510f22007-10-16 23:31:32 -0700285int security_sb_umount(struct vfsmount *mnt, int flags)
286{
287 return security_ops->sb_umount(mnt, flags);
288}
289
Al Virob5266eb2008-03-22 17:48:24 -0400290int security_sb_pivotroot(struct path *old_path, struct path *new_path)
James Morris20510f22007-10-16 23:31:32 -0700291{
Al Virob5266eb2008-03-22 17:48:24 -0400292 return security_ops->sb_pivotroot(old_path, new_path);
James Morris20510f22007-10-16 23:31:32 -0700293}
294
Eric Parisc9180a52007-11-30 13:00:35 -0500295int security_sb_set_mnt_opts(struct super_block *sb,
Eric Parise0007522008-03-05 10:31:54 -0500296 struct security_mnt_opts *opts)
Eric Parisc9180a52007-11-30 13:00:35 -0500297{
Eric Parise0007522008-03-05 10:31:54 -0500298 return security_ops->sb_set_mnt_opts(sb, opts);
Eric Parisc9180a52007-11-30 13:00:35 -0500299}
Eric Parise0007522008-03-05 10:31:54 -0500300EXPORT_SYMBOL(security_sb_set_mnt_opts);
Eric Parisc9180a52007-11-30 13:00:35 -0500301
302void security_sb_clone_mnt_opts(const struct super_block *oldsb,
303 struct super_block *newsb)
304{
305 security_ops->sb_clone_mnt_opts(oldsb, newsb);
306}
Eric Parise0007522008-03-05 10:31:54 -0500307EXPORT_SYMBOL(security_sb_clone_mnt_opts);
308
309int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
310{
311 return security_ops->sb_parse_opts_str(options, opts);
312}
313EXPORT_SYMBOL(security_sb_parse_opts_str);
Eric Parisc9180a52007-11-30 13:00:35 -0500314
James Morris20510f22007-10-16 23:31:32 -0700315int security_inode_alloc(struct inode *inode)
316{
317 inode->i_security = NULL;
Eric Parisbc7d2a32010-10-25 14:42:05 -0400318 return security_ops->inode_alloc_security(inode);
James Morris20510f22007-10-16 23:31:32 -0700319}
320
321void security_inode_free(struct inode *inode)
322{
Mimi Zoharf381c272011-03-09 14:13:22 -0500323 integrity_inode_free(inode);
James Morris20510f22007-10-16 23:31:32 -0700324 security_ops->inode_free_security(inode);
325}
326
327int security_inode_init_security(struct inode *inode, struct inode *dir,
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400328 const struct qstr *qstr,
329 const initxattrs initxattrs, void *fs_data)
330{
Mimi Zohar823eb1c2011-06-15 21:19:10 -0400331 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
332 struct xattr *lsm_xattr, *evm_xattr, *xattr;
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400333 int ret;
334
335 if (unlikely(IS_PRIVATE(inode)))
Mimi Zoharfb88c2b2011-08-15 10:13:18 -0400336 return 0;
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400337
338 memset(new_xattrs, 0, sizeof new_xattrs);
339 if (!initxattrs)
340 return security_ops->inode_init_security(inode, dir, qstr,
341 NULL, NULL, NULL);
342 lsm_xattr = new_xattrs;
343 ret = security_ops->inode_init_security(inode, dir, qstr,
344 &lsm_xattr->name,
345 &lsm_xattr->value,
346 &lsm_xattr->value_len);
347 if (ret)
348 goto out;
Mimi Zohar823eb1c2011-06-15 21:19:10 -0400349
350 evm_xattr = lsm_xattr + 1;
351 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
352 if (ret)
353 goto out;
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400354 ret = initxattrs(inode, new_xattrs, fs_data);
355out:
Mimi Zohar823eb1c2011-06-15 21:19:10 -0400356 for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
357 kfree(xattr->name);
358 kfree(xattr->value);
359 }
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400360 return (ret == -EOPNOTSUPP) ? 0 : ret;
361}
362EXPORT_SYMBOL(security_inode_init_security);
363
364int security_old_inode_init_security(struct inode *inode, struct inode *dir,
365 const struct qstr *qstr, char **name,
366 void **value, size_t *len)
James Morris20510f22007-10-16 23:31:32 -0700367{
368 if (unlikely(IS_PRIVATE(inode)))
Jan Kara30e05322012-01-03 13:14:29 +0100369 return -EOPNOTSUPP;
Eric Paris2a7dba32011-02-01 11:05:39 -0500370 return security_ops->inode_init_security(inode, dir, qstr, name, value,
371 len);
James Morris20510f22007-10-16 23:31:32 -0700372}
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400373EXPORT_SYMBOL(security_old_inode_init_security);
James Morris20510f22007-10-16 23:31:32 -0700374
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900375#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500376int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900377 unsigned int dev)
378{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900379 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900380 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900381 return security_ops->path_mknod(dir, dentry, mode, dev);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900382}
383EXPORT_SYMBOL(security_path_mknod);
384
Al Viro4572bef2011-11-21 14:56:21 -0500385int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900386{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900387 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900388 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900389 return security_ops->path_mkdir(dir, dentry, mode);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900390}
David Howells82140442010-12-24 14:48:35 +0000391EXPORT_SYMBOL(security_path_mkdir);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900392
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900393int security_path_rmdir(struct path *dir, struct dentry *dentry)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900394{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900395 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900396 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900397 return security_ops->path_rmdir(dir, dentry);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900398}
399
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900400int security_path_unlink(struct path *dir, struct dentry *dentry)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900401{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900402 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900403 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900404 return security_ops->path_unlink(dir, dentry);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900405}
David Howells82140442010-12-24 14:48:35 +0000406EXPORT_SYMBOL(security_path_unlink);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900407
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900408int security_path_symlink(struct path *dir, struct dentry *dentry,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900409 const char *old_name)
410{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900411 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900412 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900413 return security_ops->path_symlink(dir, dentry, old_name);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900414}
415
416int security_path_link(struct dentry *old_dentry, struct path *new_dir,
417 struct dentry *new_dentry)
418{
419 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
420 return 0;
421 return security_ops->path_link(old_dentry, new_dir, new_dentry);
422}
423
424int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
425 struct path *new_dir, struct dentry *new_dentry)
426{
427 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
428 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
429 return 0;
430 return security_ops->path_rename(old_dir, old_dentry, new_dir,
431 new_dentry);
432}
David Howells82140442010-12-24 14:48:35 +0000433EXPORT_SYMBOL(security_path_rename);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900434
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900435int security_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900436{
437 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
438 return 0;
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900439 return security_ops->path_truncate(path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900440}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900441
Al Virocdcf1162011-12-08 10:51:53 -0500442int security_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900443{
Al Virocdcf1162011-12-08 10:51:53 -0500444 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
Tetsuo Handa89eda062009-10-04 21:49:47 +0900445 return 0;
Al Virocdcf1162011-12-08 10:51:53 -0500446 return security_ops->path_chmod(path, mode);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900447}
448
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600449int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900450{
451 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
452 return 0;
453 return security_ops->path_chown(path, uid, gid);
454}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900455
456int security_path_chroot(struct path *path)
457{
458 return security_ops->path_chroot(path);
459}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900460#endif
461
Al Viro4acdaf22011-07-26 01:42:34 -0400462int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
James Morris20510f22007-10-16 23:31:32 -0700463{
464 if (unlikely(IS_PRIVATE(dir)))
465 return 0;
466 return security_ops->inode_create(dir, dentry, mode);
467}
David Howells800a9642009-04-03 16:42:40 +0100468EXPORT_SYMBOL_GPL(security_inode_create);
James Morris20510f22007-10-16 23:31:32 -0700469
470int security_inode_link(struct dentry *old_dentry, struct inode *dir,
471 struct dentry *new_dentry)
472{
473 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
474 return 0;
475 return security_ops->inode_link(old_dentry, dir, new_dentry);
476}
477
478int security_inode_unlink(struct inode *dir, struct dentry *dentry)
479{
480 if (unlikely(IS_PRIVATE(dentry->d_inode)))
481 return 0;
482 return security_ops->inode_unlink(dir, dentry);
483}
484
485int security_inode_symlink(struct inode *dir, struct dentry *dentry,
486 const char *old_name)
487{
488 if (unlikely(IS_PRIVATE(dir)))
489 return 0;
490 return security_ops->inode_symlink(dir, dentry, old_name);
491}
492
Al Viro18bb1db2011-07-26 01:41:39 -0400493int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
James Morris20510f22007-10-16 23:31:32 -0700494{
495 if (unlikely(IS_PRIVATE(dir)))
496 return 0;
497 return security_ops->inode_mkdir(dir, dentry, mode);
498}
David Howells800a9642009-04-03 16:42:40 +0100499EXPORT_SYMBOL_GPL(security_inode_mkdir);
James Morris20510f22007-10-16 23:31:32 -0700500
501int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
502{
503 if (unlikely(IS_PRIVATE(dentry->d_inode)))
504 return 0;
505 return security_ops->inode_rmdir(dir, dentry);
506}
507
Al Viro1a67aaf2011-07-26 01:52:52 -0400508int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
James Morris20510f22007-10-16 23:31:32 -0700509{
510 if (unlikely(IS_PRIVATE(dir)))
511 return 0;
512 return security_ops->inode_mknod(dir, dentry, mode, dev);
513}
514
515int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
516 struct inode *new_dir, struct dentry *new_dentry)
517{
518 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
519 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
520 return 0;
521 return security_ops->inode_rename(old_dir, old_dentry,
522 new_dir, new_dentry);
523}
524
525int security_inode_readlink(struct dentry *dentry)
526{
527 if (unlikely(IS_PRIVATE(dentry->d_inode)))
528 return 0;
529 return security_ops->inode_readlink(dentry);
530}
531
532int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
533{
534 if (unlikely(IS_PRIVATE(dentry->d_inode)))
535 return 0;
536 return security_ops->inode_follow_link(dentry, nd);
537}
538
Al Virob77b0642008-07-17 09:37:02 -0400539int security_inode_permission(struct inode *inode, int mask)
James Morris20510f22007-10-16 23:31:32 -0700540{
541 if (unlikely(IS_PRIVATE(inode)))
542 return 0;
Al Viroe74f71e2011-06-20 19:38:15 -0400543 return security_ops->inode_permission(inode, mask);
James Morris20510f22007-10-16 23:31:32 -0700544}
545
546int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
547{
Mimi Zohar817b54a2011-05-13 12:53:38 -0400548 int ret;
549
James Morris20510f22007-10-16 23:31:32 -0700550 if (unlikely(IS_PRIVATE(dentry->d_inode)))
551 return 0;
Mimi Zohar817b54a2011-05-13 12:53:38 -0400552 ret = security_ops->inode_setattr(dentry, attr);
553 if (ret)
554 return ret;
555 return evm_inode_setattr(dentry, attr);
James Morris20510f22007-10-16 23:31:32 -0700556}
Miklos Szeredib1da47e2008-07-01 15:01:28 +0200557EXPORT_SYMBOL_GPL(security_inode_setattr);
James Morris20510f22007-10-16 23:31:32 -0700558
559int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
560{
561 if (unlikely(IS_PRIVATE(dentry->d_inode)))
562 return 0;
563 return security_ops->inode_getattr(mnt, dentry);
564}
565
David Howells8f0cfa52008-04-29 00:59:41 -0700566int security_inode_setxattr(struct dentry *dentry, const char *name,
567 const void *value, size_t size, int flags)
James Morris20510f22007-10-16 23:31:32 -0700568{
Mimi Zohar3e1be522011-03-09 14:38:26 -0500569 int ret;
570
James Morris20510f22007-10-16 23:31:32 -0700571 if (unlikely(IS_PRIVATE(dentry->d_inode)))
572 return 0;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500573 ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
574 if (ret)
575 return ret;
Mimi Zohar42c63332011-03-10 18:54:15 -0500576 ret = ima_inode_setxattr(dentry, name, value, size);
577 if (ret)
578 return ret;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500579 return evm_inode_setxattr(dentry, name, value, size);
James Morris20510f22007-10-16 23:31:32 -0700580}
581
David Howells8f0cfa52008-04-29 00:59:41 -0700582void security_inode_post_setxattr(struct dentry *dentry, const char *name,
583 const void *value, size_t size, int flags)
James Morris20510f22007-10-16 23:31:32 -0700584{
585 if (unlikely(IS_PRIVATE(dentry->d_inode)))
586 return;
587 security_ops->inode_post_setxattr(dentry, name, value, size, flags);
Mimi Zohar3e1be522011-03-09 14:38:26 -0500588 evm_inode_post_setxattr(dentry, name, value, size);
James Morris20510f22007-10-16 23:31:32 -0700589}
590
David Howells8f0cfa52008-04-29 00:59:41 -0700591int security_inode_getxattr(struct dentry *dentry, const char *name)
James Morris20510f22007-10-16 23:31:32 -0700592{
593 if (unlikely(IS_PRIVATE(dentry->d_inode)))
594 return 0;
595 return security_ops->inode_getxattr(dentry, name);
596}
597
598int security_inode_listxattr(struct dentry *dentry)
599{
600 if (unlikely(IS_PRIVATE(dentry->d_inode)))
601 return 0;
602 return security_ops->inode_listxattr(dentry);
603}
604
David Howells8f0cfa52008-04-29 00:59:41 -0700605int security_inode_removexattr(struct dentry *dentry, const char *name)
James Morris20510f22007-10-16 23:31:32 -0700606{
Mimi Zohar3e1be522011-03-09 14:38:26 -0500607 int ret;
608
James Morris20510f22007-10-16 23:31:32 -0700609 if (unlikely(IS_PRIVATE(dentry->d_inode)))
610 return 0;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500611 ret = security_ops->inode_removexattr(dentry, name);
612 if (ret)
613 return ret;
Mimi Zohar42c63332011-03-10 18:54:15 -0500614 ret = ima_inode_removexattr(dentry, name);
615 if (ret)
616 return ret;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500617 return evm_inode_removexattr(dentry, name);
James Morris20510f22007-10-16 23:31:32 -0700618}
619
Serge E. Hallynb5376772007-10-16 23:31:36 -0700620int security_inode_need_killpriv(struct dentry *dentry)
621{
622 return security_ops->inode_need_killpriv(dentry);
623}
624
625int security_inode_killpriv(struct dentry *dentry)
626{
627 return security_ops->inode_killpriv(dentry);
628}
629
David P. Quigley42492592008-02-04 22:29:39 -0800630int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
James Morris20510f22007-10-16 23:31:32 -0700631{
632 if (unlikely(IS_PRIVATE(inode)))
James Morris8d952502010-01-14 09:33:28 +1100633 return -EOPNOTSUPP;
David P. Quigley42492592008-02-04 22:29:39 -0800634 return security_ops->inode_getsecurity(inode, name, buffer, alloc);
James Morris20510f22007-10-16 23:31:32 -0700635}
636
637int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
638{
639 if (unlikely(IS_PRIVATE(inode)))
James Morris8d952502010-01-14 09:33:28 +1100640 return -EOPNOTSUPP;
James Morris20510f22007-10-16 23:31:32 -0700641 return security_ops->inode_setsecurity(inode, name, value, size, flags);
642}
643
644int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
645{
646 if (unlikely(IS_PRIVATE(inode)))
647 return 0;
648 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
649}
650
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200651void security_inode_getsecid(const struct inode *inode, u32 *secid)
652{
653 security_ops->inode_getsecid(inode, secid);
654}
655
James Morris20510f22007-10-16 23:31:32 -0700656int security_file_permission(struct file *file, int mask)
657{
Eric Parisc4ec54b2009-12-17 21:24:34 -0500658 int ret;
659
660 ret = security_ops->file_permission(file, mask);
661 if (ret)
662 return ret;
663
664 return fsnotify_perm(file, mask);
James Morris20510f22007-10-16 23:31:32 -0700665}
666
667int security_file_alloc(struct file *file)
668{
669 return security_ops->file_alloc_security(file);
670}
671
672void security_file_free(struct file *file)
673{
674 security_ops->file_free_security(file);
675}
676
677int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
678{
679 return security_ops->file_ioctl(file, cmd, arg);
680}
681
Al Viro98de59b2012-05-30 19:58:30 -0400682static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
James Morris20510f22007-10-16 23:31:32 -0700683{
Al Viro8b3ec682012-05-30 17:11:23 -0400684 /*
Al Viro98de59b2012-05-30 19:58:30 -0400685 * Does we have PROT_READ and does the application expect
686 * it to imply PROT_EXEC? If not, nothing to talk about...
Al Viro8b3ec682012-05-30 17:11:23 -0400687 */
Al Viro98de59b2012-05-30 19:58:30 -0400688 if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
689 return prot;
Al Viro8b3ec682012-05-30 17:11:23 -0400690 if (!(current->personality & READ_IMPLIES_EXEC))
Al Viro98de59b2012-05-30 19:58:30 -0400691 return prot;
692 /*
693 * if that's an anonymous mapping, let it.
694 */
695 if (!file)
696 return prot | PROT_EXEC;
697 /*
698 * ditto if it's not on noexec mount, except that on !MMU we need
699 * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
700 */
701 if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) {
Al Viro8b3ec682012-05-30 17:11:23 -0400702#ifndef CONFIG_MMU
703 unsigned long caps = 0;
704 struct address_space *mapping = file->f_mapping;
705 if (mapping && mapping->backing_dev_info)
706 caps = mapping->backing_dev_info->capabilities;
707 if (!(caps & BDI_CAP_EXEC_MAP))
Al Viro98de59b2012-05-30 19:58:30 -0400708 return prot;
Al Viro8b3ec682012-05-30 17:11:23 -0400709#endif
Al Viro98de59b2012-05-30 19:58:30 -0400710 return prot | PROT_EXEC;
Al Viro8b3ec682012-05-30 17:11:23 -0400711 }
Al Viro98de59b2012-05-30 19:58:30 -0400712 /* anything on noexec mount won't get PROT_EXEC */
713 return prot;
714}
715
716int security_mmap_file(struct file *file, unsigned long prot,
717 unsigned long flags)
718{
719 int ret;
720 ret = security_ops->mmap_file(file, prot,
721 mmap_prot(file, prot), flags);
Mimi Zohar6c21a7f2009-10-22 17:30:13 -0400722 if (ret)
723 return ret;
724 return ima_file_mmap(file, prot);
James Morris20510f22007-10-16 23:31:32 -0700725}
726
Al Viroe5467852012-05-30 13:30:51 -0400727int security_mmap_addr(unsigned long addr)
728{
729 return security_ops->mmap_addr(addr);
730}
731
James Morris20510f22007-10-16 23:31:32 -0700732int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
733 unsigned long prot)
734{
735 return security_ops->file_mprotect(vma, reqprot, prot);
736}
737
738int security_file_lock(struct file *file, unsigned int cmd)
739{
740 return security_ops->file_lock(file, cmd);
741}
742
743int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
744{
745 return security_ops->file_fcntl(file, cmd, arg);
746}
747
748int security_file_set_fowner(struct file *file)
749{
750 return security_ops->file_set_fowner(file);
751}
752
753int security_file_send_sigiotask(struct task_struct *tsk,
754 struct fown_struct *fown, int sig)
755{
756 return security_ops->file_send_sigiotask(tsk, fown, sig);
757}
758
759int security_file_receive(struct file *file)
760{
761 return security_ops->file_receive(file);
762}
763
Eric Paris83d49852012-04-04 13:45:40 -0400764int security_file_open(struct file *file, const struct cred *cred)
James Morris20510f22007-10-16 23:31:32 -0700765{
Eric Parisc4ec54b2009-12-17 21:24:34 -0500766 int ret;
767
Eric Paris83d49852012-04-04 13:45:40 -0400768 ret = security_ops->file_open(file, cred);
Eric Parisc4ec54b2009-12-17 21:24:34 -0500769 if (ret)
770 return ret;
771
772 return fsnotify_perm(file, MAY_OPEN);
James Morris20510f22007-10-16 23:31:32 -0700773}
774
775int security_task_create(unsigned long clone_flags)
776{
777 return security_ops->task_create(clone_flags);
778}
779
Kees Cook1a2a4d02011-12-21 12:17:03 -0800780void security_task_free(struct task_struct *task)
781{
Kees Cookc6993e42012-09-04 13:32:13 -0700782#ifdef CONFIG_SECURITY_YAMA_STACKED
783 yama_task_free(task);
784#endif
Kees Cook1a2a4d02011-12-21 12:17:03 -0800785 security_ops->task_free(task);
786}
787
David Howellsee18d642009-09-02 09:14:21 +0100788int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
789{
790 return security_ops->cred_alloc_blank(cred, gfp);
791}
792
David Howellsf1752ee2008-11-14 10:39:17 +1100793void security_cred_free(struct cred *cred)
James Morris20510f22007-10-16 23:31:32 -0700794{
David Howellsf1752ee2008-11-14 10:39:17 +1100795 security_ops->cred_free(cred);
James Morris20510f22007-10-16 23:31:32 -0700796}
797
David Howellsd84f4f92008-11-14 10:39:23 +1100798int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
799{
800 return security_ops->cred_prepare(new, old, gfp);
801}
802
David Howellsee18d642009-09-02 09:14:21 +0100803void security_transfer_creds(struct cred *new, const struct cred *old)
804{
805 security_ops->cred_transfer(new, old);
806}
807
David Howells3a3b7ce2008-11-14 10:39:28 +1100808int security_kernel_act_as(struct cred *new, u32 secid)
809{
810 return security_ops->kernel_act_as(new, secid);
811}
812
813int security_kernel_create_files_as(struct cred *new, struct inode *inode)
814{
815 return security_ops->kernel_create_files_as(new, inode);
816}
817
Eric Parisdd8dbf22009-11-03 16:35:32 +1100818int security_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400819{
Eric Parisdd8dbf22009-11-03 16:35:32 +1100820 return security_ops->kernel_module_request(kmod_name);
Eric Paris91884992009-08-13 09:44:57 -0400821}
822
David Howellsd84f4f92008-11-14 10:39:23 +1100823int security_task_fix_setuid(struct cred *new, const struct cred *old,
824 int flags)
James Morris20510f22007-10-16 23:31:32 -0700825{
David Howellsd84f4f92008-11-14 10:39:23 +1100826 return security_ops->task_fix_setuid(new, old, flags);
James Morris20510f22007-10-16 23:31:32 -0700827}
828
James Morris20510f22007-10-16 23:31:32 -0700829int security_task_setpgid(struct task_struct *p, pid_t pgid)
830{
831 return security_ops->task_setpgid(p, pgid);
832}
833
834int security_task_getpgid(struct task_struct *p)
835{
836 return security_ops->task_getpgid(p);
837}
838
839int security_task_getsid(struct task_struct *p)
840{
841 return security_ops->task_getsid(p);
842}
843
844void security_task_getsecid(struct task_struct *p, u32 *secid)
845{
846 security_ops->task_getsecid(p, secid);
847}
848EXPORT_SYMBOL(security_task_getsecid);
849
James Morris20510f22007-10-16 23:31:32 -0700850int security_task_setnice(struct task_struct *p, int nice)
851{
852 return security_ops->task_setnice(p, nice);
853}
854
855int security_task_setioprio(struct task_struct *p, int ioprio)
856{
857 return security_ops->task_setioprio(p, ioprio);
858}
859
860int security_task_getioprio(struct task_struct *p)
861{
862 return security_ops->task_getioprio(p);
863}
864
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200865int security_task_setrlimit(struct task_struct *p, unsigned int resource,
866 struct rlimit *new_rlim)
James Morris20510f22007-10-16 23:31:32 -0700867{
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200868 return security_ops->task_setrlimit(p, resource, new_rlim);
James Morris20510f22007-10-16 23:31:32 -0700869}
870
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +0900871int security_task_setscheduler(struct task_struct *p)
James Morris20510f22007-10-16 23:31:32 -0700872{
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +0900873 return security_ops->task_setscheduler(p);
James Morris20510f22007-10-16 23:31:32 -0700874}
875
876int security_task_getscheduler(struct task_struct *p)
877{
878 return security_ops->task_getscheduler(p);
879}
880
881int security_task_movememory(struct task_struct *p)
882{
883 return security_ops->task_movememory(p);
884}
885
886int security_task_kill(struct task_struct *p, struct siginfo *info,
887 int sig, u32 secid)
888{
889 return security_ops->task_kill(p, info, sig, secid);
890}
891
892int security_task_wait(struct task_struct *p)
893{
894 return security_ops->task_wait(p);
895}
896
897int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +1100898 unsigned long arg4, unsigned long arg5)
James Morris20510f22007-10-16 23:31:32 -0700899{
Kees Cookc6993e42012-09-04 13:32:13 -0700900#ifdef CONFIG_SECURITY_YAMA_STACKED
901 int rc;
902 rc = yama_task_prctl(option, arg2, arg3, arg4, arg5);
903 if (rc != -ENOSYS)
904 return rc;
905#endif
David Howellsd84f4f92008-11-14 10:39:23 +1100906 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
James Morris20510f22007-10-16 23:31:32 -0700907}
908
909void security_task_to_inode(struct task_struct *p, struct inode *inode)
910{
911 security_ops->task_to_inode(p, inode);
912}
913
914int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
915{
916 return security_ops->ipc_permission(ipcp, flag);
917}
918
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200919void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
920{
921 security_ops->ipc_getsecid(ipcp, secid);
922}
923
James Morris20510f22007-10-16 23:31:32 -0700924int security_msg_msg_alloc(struct msg_msg *msg)
925{
926 return security_ops->msg_msg_alloc_security(msg);
927}
928
929void security_msg_msg_free(struct msg_msg *msg)
930{
931 security_ops->msg_msg_free_security(msg);
932}
933
934int security_msg_queue_alloc(struct msg_queue *msq)
935{
936 return security_ops->msg_queue_alloc_security(msq);
937}
938
939void security_msg_queue_free(struct msg_queue *msq)
940{
941 security_ops->msg_queue_free_security(msq);
942}
943
944int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
945{
946 return security_ops->msg_queue_associate(msq, msqflg);
947}
948
949int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
950{
951 return security_ops->msg_queue_msgctl(msq, cmd);
952}
953
954int security_msg_queue_msgsnd(struct msg_queue *msq,
955 struct msg_msg *msg, int msqflg)
956{
957 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
958}
959
960int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
961 struct task_struct *target, long type, int mode)
962{
963 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
964}
965
966int security_shm_alloc(struct shmid_kernel *shp)
967{
968 return security_ops->shm_alloc_security(shp);
969}
970
971void security_shm_free(struct shmid_kernel *shp)
972{
973 security_ops->shm_free_security(shp);
974}
975
976int security_shm_associate(struct shmid_kernel *shp, int shmflg)
977{
978 return security_ops->shm_associate(shp, shmflg);
979}
980
981int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
982{
983 return security_ops->shm_shmctl(shp, cmd);
984}
985
986int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
987{
988 return security_ops->shm_shmat(shp, shmaddr, shmflg);
989}
990
991int security_sem_alloc(struct sem_array *sma)
992{
993 return security_ops->sem_alloc_security(sma);
994}
995
996void security_sem_free(struct sem_array *sma)
997{
998 security_ops->sem_free_security(sma);
999}
1000
1001int security_sem_associate(struct sem_array *sma, int semflg)
1002{
1003 return security_ops->sem_associate(sma, semflg);
1004}
1005
1006int security_sem_semctl(struct sem_array *sma, int cmd)
1007{
1008 return security_ops->sem_semctl(sma, cmd);
1009}
1010
1011int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1012 unsigned nsops, int alter)
1013{
1014 return security_ops->sem_semop(sma, sops, nsops, alter);
1015}
1016
1017void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1018{
1019 if (unlikely(inode && IS_PRIVATE(inode)))
1020 return;
1021 security_ops->d_instantiate(dentry, inode);
1022}
1023EXPORT_SYMBOL(security_d_instantiate);
1024
1025int security_getprocattr(struct task_struct *p, char *name, char **value)
1026{
1027 return security_ops->getprocattr(p, name, value);
1028}
1029
1030int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1031{
1032 return security_ops->setprocattr(p, name, value, size);
1033}
1034
1035int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1036{
1037 return security_ops->netlink_send(sk, skb);
1038}
James Morris20510f22007-10-16 23:31:32 -07001039
James Morris20510f22007-10-16 23:31:32 -07001040int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1041{
1042 return security_ops->secid_to_secctx(secid, secdata, seclen);
1043}
1044EXPORT_SYMBOL(security_secid_to_secctx);
1045
David Howells7bf570d2008-04-29 20:52:51 +01001046int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
David Howells63cb3442008-01-15 23:47:35 +00001047{
1048 return security_ops->secctx_to_secid(secdata, seclen, secid);
1049}
1050EXPORT_SYMBOL(security_secctx_to_secid);
1051
James Morris20510f22007-10-16 23:31:32 -07001052void security_release_secctx(char *secdata, u32 seclen)
1053{
James Morris65fc7662008-06-12 01:00:10 +10001054 security_ops->release_secctx(secdata, seclen);
James Morris20510f22007-10-16 23:31:32 -07001055}
1056EXPORT_SYMBOL(security_release_secctx);
1057
David P. Quigley1ee65e32009-09-03 14:25:57 -04001058int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1059{
1060 return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
1061}
1062EXPORT_SYMBOL(security_inode_notifysecctx);
1063
1064int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1065{
1066 return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1067}
1068EXPORT_SYMBOL(security_inode_setsecctx);
1069
1070int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1071{
1072 return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1073}
1074EXPORT_SYMBOL(security_inode_getsecctx);
1075
James Morris20510f22007-10-16 23:31:32 -07001076#ifdef CONFIG_SECURITY_NETWORK
1077
David S. Miller3610cda2011-01-05 15:38:53 -08001078int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
James Morris20510f22007-10-16 23:31:32 -07001079{
1080 return security_ops->unix_stream_connect(sock, other, newsk);
1081}
1082EXPORT_SYMBOL(security_unix_stream_connect);
1083
1084int security_unix_may_send(struct socket *sock, struct socket *other)
1085{
1086 return security_ops->unix_may_send(sock, other);
1087}
1088EXPORT_SYMBOL(security_unix_may_send);
1089
1090int security_socket_create(int family, int type, int protocol, int kern)
1091{
1092 return security_ops->socket_create(family, type, protocol, kern);
1093}
1094
1095int security_socket_post_create(struct socket *sock, int family,
1096 int type, int protocol, int kern)
1097{
1098 return security_ops->socket_post_create(sock, family, type,
1099 protocol, kern);
1100}
1101
1102int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1103{
1104 return security_ops->socket_bind(sock, address, addrlen);
1105}
1106
1107int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1108{
1109 return security_ops->socket_connect(sock, address, addrlen);
1110}
1111
1112int security_socket_listen(struct socket *sock, int backlog)
1113{
1114 return security_ops->socket_listen(sock, backlog);
1115}
1116
1117int security_socket_accept(struct socket *sock, struct socket *newsock)
1118{
1119 return security_ops->socket_accept(sock, newsock);
1120}
1121
James Morris20510f22007-10-16 23:31:32 -07001122int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1123{
1124 return security_ops->socket_sendmsg(sock, msg, size);
1125}
1126
1127int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1128 int size, int flags)
1129{
1130 return security_ops->socket_recvmsg(sock, msg, size, flags);
1131}
1132
1133int security_socket_getsockname(struct socket *sock)
1134{
1135 return security_ops->socket_getsockname(sock);
1136}
1137
1138int security_socket_getpeername(struct socket *sock)
1139{
1140 return security_ops->socket_getpeername(sock);
1141}
1142
1143int security_socket_getsockopt(struct socket *sock, int level, int optname)
1144{
1145 return security_ops->socket_getsockopt(sock, level, optname);
1146}
1147
1148int security_socket_setsockopt(struct socket *sock, int level, int optname)
1149{
1150 return security_ops->socket_setsockopt(sock, level, optname);
1151}
1152
1153int security_socket_shutdown(struct socket *sock, int how)
1154{
1155 return security_ops->socket_shutdown(sock, how);
1156}
1157
1158int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1159{
1160 return security_ops->socket_sock_rcv_skb(sk, skb);
1161}
1162EXPORT_SYMBOL(security_sock_rcv_skb);
1163
1164int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1165 int __user *optlen, unsigned len)
1166{
1167 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1168}
1169
1170int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1171{
1172 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1173}
1174EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1175
1176int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1177{
1178 return security_ops->sk_alloc_security(sk, family, priority);
1179}
1180
1181void security_sk_free(struct sock *sk)
1182{
James Morris65fc7662008-06-12 01:00:10 +10001183 security_ops->sk_free_security(sk);
James Morris20510f22007-10-16 23:31:32 -07001184}
1185
1186void security_sk_clone(const struct sock *sk, struct sock *newsk)
1187{
James Morris65fc7662008-06-12 01:00:10 +10001188 security_ops->sk_clone_security(sk, newsk);
James Morris20510f22007-10-16 23:31:32 -07001189}
Paul Moore6230c9b2011-10-07 09:40:59 +00001190EXPORT_SYMBOL(security_sk_clone);
James Morris20510f22007-10-16 23:31:32 -07001191
1192void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1193{
David S. Miller1d28f422011-03-12 00:29:39 -05001194 security_ops->sk_getsecid(sk, &fl->flowi_secid);
James Morris20510f22007-10-16 23:31:32 -07001195}
1196EXPORT_SYMBOL(security_sk_classify_flow);
1197
1198void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1199{
1200 security_ops->req_classify_flow(req, fl);
1201}
1202EXPORT_SYMBOL(security_req_classify_flow);
1203
1204void security_sock_graft(struct sock *sk, struct socket *parent)
1205{
1206 security_ops->sock_graft(sk, parent);
1207}
1208EXPORT_SYMBOL(security_sock_graft);
1209
1210int security_inet_conn_request(struct sock *sk,
1211 struct sk_buff *skb, struct request_sock *req)
1212{
1213 return security_ops->inet_conn_request(sk, skb, req);
1214}
1215EXPORT_SYMBOL(security_inet_conn_request);
1216
1217void security_inet_csk_clone(struct sock *newsk,
1218 const struct request_sock *req)
1219{
1220 security_ops->inet_csk_clone(newsk, req);
1221}
1222
1223void security_inet_conn_established(struct sock *sk,
1224 struct sk_buff *skb)
1225{
1226 security_ops->inet_conn_established(sk, skb);
1227}
1228
Eric Paris2606fd12010-10-13 16:24:41 -04001229int security_secmark_relabel_packet(u32 secid)
1230{
1231 return security_ops->secmark_relabel_packet(secid);
1232}
1233EXPORT_SYMBOL(security_secmark_relabel_packet);
1234
1235void security_secmark_refcount_inc(void)
1236{
1237 security_ops->secmark_refcount_inc();
1238}
1239EXPORT_SYMBOL(security_secmark_refcount_inc);
1240
1241void security_secmark_refcount_dec(void)
1242{
1243 security_ops->secmark_refcount_dec();
1244}
1245EXPORT_SYMBOL(security_secmark_refcount_dec);
1246
Paul Moore2b980db2009-08-28 18:12:43 -04001247int security_tun_dev_create(void)
1248{
1249 return security_ops->tun_dev_create();
1250}
1251EXPORT_SYMBOL(security_tun_dev_create);
1252
1253void security_tun_dev_post_create(struct sock *sk)
1254{
1255 return security_ops->tun_dev_post_create(sk);
1256}
1257EXPORT_SYMBOL(security_tun_dev_post_create);
1258
1259int security_tun_dev_attach(struct sock *sk)
1260{
1261 return security_ops->tun_dev_attach(sk);
1262}
1263EXPORT_SYMBOL(security_tun_dev_attach);
1264
James Morris20510f22007-10-16 23:31:32 -07001265#endif /* CONFIG_SECURITY_NETWORK */
1266
1267#ifdef CONFIG_SECURITY_NETWORK_XFRM
1268
Paul Moore03e1ad72008-04-12 19:07:52 -07001269int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
James Morris20510f22007-10-16 23:31:32 -07001270{
Paul Moore03e1ad72008-04-12 19:07:52 -07001271 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
James Morris20510f22007-10-16 23:31:32 -07001272}
1273EXPORT_SYMBOL(security_xfrm_policy_alloc);
1274
Paul Moore03e1ad72008-04-12 19:07:52 -07001275int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1276 struct xfrm_sec_ctx **new_ctxp)
James Morris20510f22007-10-16 23:31:32 -07001277{
Paul Moore03e1ad72008-04-12 19:07:52 -07001278 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
James Morris20510f22007-10-16 23:31:32 -07001279}
1280
Paul Moore03e1ad72008-04-12 19:07:52 -07001281void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
James Morris20510f22007-10-16 23:31:32 -07001282{
Paul Moore03e1ad72008-04-12 19:07:52 -07001283 security_ops->xfrm_policy_free_security(ctx);
James Morris20510f22007-10-16 23:31:32 -07001284}
1285EXPORT_SYMBOL(security_xfrm_policy_free);
1286
Paul Moore03e1ad72008-04-12 19:07:52 -07001287int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
James Morris20510f22007-10-16 23:31:32 -07001288{
Paul Moore03e1ad72008-04-12 19:07:52 -07001289 return security_ops->xfrm_policy_delete_security(ctx);
James Morris20510f22007-10-16 23:31:32 -07001290}
1291
1292int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1293{
1294 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1295}
1296EXPORT_SYMBOL(security_xfrm_state_alloc);
1297
1298int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1299 struct xfrm_sec_ctx *polsec, u32 secid)
1300{
1301 if (!polsec)
1302 return 0;
1303 /*
1304 * We want the context to be taken from secid which is usually
1305 * from the sock.
1306 */
1307 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1308}
1309
1310int security_xfrm_state_delete(struct xfrm_state *x)
1311{
1312 return security_ops->xfrm_state_delete_security(x);
1313}
1314EXPORT_SYMBOL(security_xfrm_state_delete);
1315
1316void security_xfrm_state_free(struct xfrm_state *x)
1317{
1318 security_ops->xfrm_state_free_security(x);
1319}
1320
Paul Moore03e1ad72008-04-12 19:07:52 -07001321int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
James Morris20510f22007-10-16 23:31:32 -07001322{
Paul Moore03e1ad72008-04-12 19:07:52 -07001323 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
James Morris20510f22007-10-16 23:31:32 -07001324}
1325
1326int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
David S. Millere33f7702011-02-22 18:13:15 -08001327 struct xfrm_policy *xp,
1328 const struct flowi *fl)
James Morris20510f22007-10-16 23:31:32 -07001329{
1330 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1331}
1332
1333int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1334{
1335 return security_ops->xfrm_decode_session(skb, secid, 1);
1336}
1337
1338void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1339{
David S. Miller1d28f422011-03-12 00:29:39 -05001340 int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
James Morris20510f22007-10-16 23:31:32 -07001341
1342 BUG_ON(rc);
1343}
1344EXPORT_SYMBOL(security_skb_classify_flow);
1345
1346#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1347
1348#ifdef CONFIG_KEYS
1349
David Howellsd84f4f92008-11-14 10:39:23 +11001350int security_key_alloc(struct key *key, const struct cred *cred,
1351 unsigned long flags)
James Morris20510f22007-10-16 23:31:32 -07001352{
David Howellsd84f4f92008-11-14 10:39:23 +11001353 return security_ops->key_alloc(key, cred, flags);
James Morris20510f22007-10-16 23:31:32 -07001354}
1355
1356void security_key_free(struct key *key)
1357{
1358 security_ops->key_free(key);
1359}
1360
1361int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11001362 const struct cred *cred, key_perm_t perm)
James Morris20510f22007-10-16 23:31:32 -07001363{
David Howellsd84f4f92008-11-14 10:39:23 +11001364 return security_ops->key_permission(key_ref, cred, perm);
James Morris20510f22007-10-16 23:31:32 -07001365}
1366
David Howells70a5bb72008-04-29 01:01:26 -07001367int security_key_getsecurity(struct key *key, char **_buffer)
1368{
1369 return security_ops->key_getsecurity(key, _buffer);
1370}
1371
James Morris20510f22007-10-16 23:31:32 -07001372#endif /* CONFIG_KEYS */
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001373
1374#ifdef CONFIG_AUDIT
1375
1376int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1377{
1378 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1379}
1380
1381int security_audit_rule_known(struct audit_krule *krule)
1382{
1383 return security_ops->audit_rule_known(krule);
1384}
1385
1386void security_audit_rule_free(void *lsmrule)
1387{
1388 security_ops->audit_rule_free(lsmrule);
1389}
1390
1391int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1392 struct audit_context *actx)
1393{
1394 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1395}
1396
1397#endif /* CONFIG_AUDIT */