blob: 4dc31f4f2700626cb951aed5e874f0ce18d8b064 [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>
David Quigleyd47be3d2013-05-22 12:50:34 -040015#include <linux/dcache.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070016#include <linux/module.h>
17#include <linux/init.h>
18#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070019#include <linux/security.h>
Mimi Zoharf381c272011-03-09 14:13:22 -050020#include <linux/integrity.h>
Mimi Zohar6c21a7f2009-10-22 17:30:13 -040021#include <linux/ima.h>
Mimi Zohar3e1be522011-03-09 14:38:26 -050022#include <linux/evm.h>
Al Viro40401532012-02-13 03:58:52 +000023#include <linux/fsnotify.h>
Al Viro8b3ec682012-05-30 17:11:23 -040024#include <linux/mman.h>
25#include <linux/mount.h>
26#include <linux/personality.h>
Paul Mundt75331a52012-07-02 14:34:11 +090027#include <linux/backing-dev.h>
Al Viro40401532012-02-13 03:58:52 +000028#include <net/flow.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070029
Mimi Zohar823eb1c2011-06-15 21:19:10 -040030#define MAX_LSM_EVM_XATTR 2
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020032/* Boot-time LSM user choice */
John Johansen6e65f922009-11-05 17:03:20 -080033static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
34 CONFIG_DEFAULT_SECURITY;
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
wzt.wzt@gmail.com189b3b12010-02-23 23:15:28 +080036static struct security_operations *security_ops;
37static struct security_operations default_security_ops = {
38 .name = "default",
39};
Eric Parisa5ecbcb2008-01-31 15:11:22 -050040
Tetsuo Handac80901f2010-05-14 12:01:26 +090041static inline int __init verify(struct security_operations *ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -070042{
43 /* verify the security_operations structure exists */
44 if (!ops)
45 return -EINVAL;
46 security_fixup_ops(ops);
47 return 0;
48}
49
50static void __init do_security_initcalls(void)
51{
52 initcall_t *call;
53 call = __security_initcall_start;
54 while (call < __security_initcall_end) {
55 (*call) ();
56 call++;
57 }
58}
59
60/**
61 * security_init - initializes the security framework
62 *
63 * This should be called early in the kernel initialization sequence.
64 */
65int __init security_init(void)
66{
James Morris20510f22007-10-16 23:31:32 -070067 printk(KERN_INFO "Security Framework initialized\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
Miklos Szeredi5915eb52008-07-03 20:56:05 +020069 security_fixup_ops(&default_security_ops);
70 security_ops = &default_security_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 do_security_initcalls();
72
73 return 0;
74}
75
wzt.wzt@gmail.com189b3b12010-02-23 23:15:28 +080076void reset_security_ops(void)
77{
78 security_ops = &default_security_ops;
79}
80
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020081/* Save user chosen LSM */
82static int __init choose_lsm(char *str)
83{
84 strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
85 return 1;
86}
87__setup("security=", choose_lsm);
88
89/**
90 * security_module_enable - Load given security module on boot ?
91 * @ops: a pointer to the struct security_operations that is to be checked.
92 *
93 * Each LSM must pass this method before registering its own operations
94 * to avoid security registration races. This method may also be used
James Morris7cea51b2008-03-07 12:23:49 +110095 * to check if your LSM is currently loaded during kernel initialization.
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +020096 *
97 * Return true if:
98 * -The passed LSM is the one chosen by user at boot time,
John Johansen6e65f922009-11-05 17:03:20 -080099 * -or the passed LSM is configured as the default and the user did not
Tetsuo Handa065d78a2010-08-28 14:58:44 +0900100 * choose an alternate LSM at boot time.
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200101 * Otherwise, return false.
102 */
103int __init security_module_enable(struct security_operations *ops)
104{
Tetsuo Handa065d78a2010-08-28 14:58:44 +0900105 return !strcmp(ops->name, chosen_lsm);
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200106}
107
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108/**
109 * register_security - registers a security framework with the kernel
110 * @ops: a pointer to the struct security_options that is to be registered
111 *
Randy Dunlap3f23d812008-08-17 21:44:22 -0700112 * This function allows a security module to register itself with the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 * kernel security subsystem. Some rudimentary checking is done on the @ops
Ahmed S. Darwish076c54c2008-03-06 18:09:10 +0200114 * value passed to this function. You'll need to check first if your LSM
115 * is allowed to register its @ops by calling security_module_enable(@ops).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 *
117 * If there is already a security module registered with the kernel,
Randy Dunlap3f23d812008-08-17 21:44:22 -0700118 * an error will be returned. Otherwise %0 is returned on success.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119 */
wzt.wzt@gmail.comc1e992b2010-02-26 22:49:55 +0800120int __init register_security(struct security_operations *ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121{
122 if (verify(ops)) {
123 printk(KERN_DEBUG "%s could not verify "
Harvey Harrisondd6f9532008-03-06 10:03:59 +1100124 "security_operations structure.\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 return -EINVAL;
126 }
127
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200128 if (security_ops != &default_security_ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 return -EAGAIN;
130
131 security_ops = ops;
132
133 return 0;
134}
135
James Morris20510f22007-10-16 23:31:32 -0700136/* Security operations */
137
Ingo Molnar9e488582009-05-07 19:26:19 +1000138int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
James Morris20510f22007-10-16 23:31:32 -0700139{
Kees Cookc6993e42012-09-04 13:32:13 -0700140#ifdef CONFIG_SECURITY_YAMA_STACKED
141 int rc;
142 rc = yama_ptrace_access_check(child, mode);
143 if (rc)
144 return rc;
145#endif
Ingo Molnar9e488582009-05-07 19:26:19 +1000146 return security_ops->ptrace_access_check(child, mode);
David Howells5cd9c582008-08-14 11:37:28 +0100147}
148
149int security_ptrace_traceme(struct task_struct *parent)
150{
Kees Cookc6993e42012-09-04 13:32:13 -0700151#ifdef CONFIG_SECURITY_YAMA_STACKED
152 int rc;
153 rc = yama_ptrace_traceme(parent);
154 if (rc)
155 return rc;
156#endif
David Howells5cd9c582008-08-14 11:37:28 +0100157 return security_ops->ptrace_traceme(parent);
James Morris20510f22007-10-16 23:31:32 -0700158}
159
160int security_capget(struct task_struct *target,
161 kernel_cap_t *effective,
162 kernel_cap_t *inheritable,
163 kernel_cap_t *permitted)
164{
165 return security_ops->capget(target, effective, inheritable, permitted);
166}
167
David Howellsd84f4f92008-11-14 10:39:23 +1100168int security_capset(struct cred *new, const struct cred *old,
169 const kernel_cap_t *effective,
170 const kernel_cap_t *inheritable,
171 const kernel_cap_t *permitted)
James Morris20510f22007-10-16 23:31:32 -0700172{
David Howellsd84f4f92008-11-14 10:39:23 +1100173 return security_ops->capset(new, old,
174 effective, inheritable, permitted);
James Morris20510f22007-10-16 23:31:32 -0700175}
176
Eric Parisb7e724d2012-01-03 12:25:15 -0500177int security_capable(const struct cred *cred, struct user_namespace *ns,
Serge E. Hallyn34867402011-03-23 16:43:17 -0700178 int cap)
James Morris20510f22007-10-16 23:31:32 -0700179{
Eric Paris6a9de492012-01-03 12:25:14 -0500180 return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
Eric Paris06112162008-11-11 22:02:50 +1100181}
182
Eric Parisc7eba4a2012-01-03 12:25:15 -0500183int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
184 int cap)
Eric Paris06112162008-11-11 22:02:50 +1100185{
Eric Parisc7eba4a2012-01-03 12:25:15 -0500186 return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
James Morris20510f22007-10-16 23:31:32 -0700187}
188
James Morris20510f22007-10-16 23:31:32 -0700189int security_quotactl(int cmds, int type, int id, struct super_block *sb)
190{
191 return security_ops->quotactl(cmds, type, id, sb);
192}
193
194int security_quota_on(struct dentry *dentry)
195{
196 return security_ops->quota_on(dentry);
197}
198
Eric Paris12b30522010-11-15 18:36:29 -0500199int security_syslog(int type)
James Morris20510f22007-10-16 23:31:32 -0700200{
Eric Paris12b30522010-11-15 18:36:29 -0500201 return security_ops->syslog(type);
James Morris20510f22007-10-16 23:31:32 -0700202}
203
Richard Cochran1e6d7672011-02-01 13:50:58 +0000204int security_settime(const struct timespec *ts, const struct timezone *tz)
James Morris20510f22007-10-16 23:31:32 -0700205{
206 return security_ops->settime(ts, tz);
207}
208
James Morris20510f22007-10-16 23:31:32 -0700209int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
210{
211 return security_ops->vm_enough_memory(mm, pages);
212}
213
David Howellsa6f76f22008-11-14 10:39:24 +1100214int security_bprm_set_creds(struct linux_binprm *bprm)
James Morris20510f22007-10-16 23:31:32 -0700215{
David Howellsa6f76f22008-11-14 10:39:24 +1100216 return security_ops->bprm_set_creds(bprm);
James Morris20510f22007-10-16 23:31:32 -0700217}
218
219int security_bprm_check(struct linux_binprm *bprm)
220{
Mimi Zohar6c21a7f2009-10-22 17:30:13 -0400221 int ret;
222
223 ret = security_ops->bprm_check_security(bprm);
224 if (ret)
225 return ret;
226 return ima_bprm_check(bprm);
James Morris20510f22007-10-16 23:31:32 -0700227}
228
David Howellsa6f76f22008-11-14 10:39:24 +1100229void security_bprm_committing_creds(struct linux_binprm *bprm)
230{
Hannes Eder200036c2008-11-24 22:14:43 +0100231 security_ops->bprm_committing_creds(bprm);
David Howellsa6f76f22008-11-14 10:39:24 +1100232}
233
234void security_bprm_committed_creds(struct linux_binprm *bprm)
235{
Hannes Eder200036c2008-11-24 22:14:43 +0100236 security_ops->bprm_committed_creds(bprm);
David Howellsa6f76f22008-11-14 10:39:24 +1100237}
238
James Morris20510f22007-10-16 23:31:32 -0700239int security_bprm_secureexec(struct linux_binprm *bprm)
240{
241 return security_ops->bprm_secureexec(bprm);
242}
243
244int security_sb_alloc(struct super_block *sb)
245{
246 return security_ops->sb_alloc_security(sb);
247}
248
249void security_sb_free(struct super_block *sb)
250{
251 security_ops->sb_free_security(sb);
252}
253
Eric Parise0007522008-03-05 10:31:54 -0500254int security_sb_copy_data(char *orig, char *copy)
James Morris20510f22007-10-16 23:31:32 -0700255{
Eric Parise0007522008-03-05 10:31:54 -0500256 return security_ops->sb_copy_data(orig, copy);
James Morris20510f22007-10-16 23:31:32 -0700257}
Eric Parise0007522008-03-05 10:31:54 -0500258EXPORT_SYMBOL(security_sb_copy_data);
James Morris20510f22007-10-16 23:31:32 -0700259
Eric Parisff36fe22011-03-03 16:09:14 -0500260int security_sb_remount(struct super_block *sb, void *data)
261{
262 return security_ops->sb_remount(sb, data);
263}
264
James Morris12204e22008-12-19 10:44:42 +1100265int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
James Morris20510f22007-10-16 23:31:32 -0700266{
James Morris12204e22008-12-19 10:44:42 +1100267 return security_ops->sb_kern_mount(sb, flags, data);
James Morris20510f22007-10-16 23:31:32 -0700268}
269
Eric Paris2069f452008-07-04 09:47:13 +1000270int security_sb_show_options(struct seq_file *m, struct super_block *sb)
271{
272 return security_ops->sb_show_options(m, sb);
273}
274
James Morris20510f22007-10-16 23:31:32 -0700275int security_sb_statfs(struct dentry *dentry)
276{
277 return security_ops->sb_statfs(dentry);
278}
279
Al Viro808d4e32012-10-11 11:42:01 -0400280int security_sb_mount(const char *dev_name, struct path *path,
281 const char *type, unsigned long flags, void *data)
James Morris20510f22007-10-16 23:31:32 -0700282{
Al Virob5266eb2008-03-22 17:48:24 -0400283 return security_ops->sb_mount(dev_name, path, type, flags, data);
James Morris20510f22007-10-16 23:31:32 -0700284}
285
James Morris20510f22007-10-16 23:31:32 -0700286int security_sb_umount(struct vfsmount *mnt, int flags)
287{
288 return security_ops->sb_umount(mnt, flags);
289}
290
Al Virob5266eb2008-03-22 17:48:24 -0400291int security_sb_pivotroot(struct path *old_path, struct path *new_path)
James Morris20510f22007-10-16 23:31:32 -0700292{
Al Virob5266eb2008-03-22 17:48:24 -0400293 return security_ops->sb_pivotroot(old_path, new_path);
James Morris20510f22007-10-16 23:31:32 -0700294}
295
Eric Parisc9180a52007-11-30 13:00:35 -0500296int security_sb_set_mnt_opts(struct super_block *sb,
David Quigley649f6e72013-05-22 12:50:36 -0400297 struct security_mnt_opts *opts,
298 unsigned long kern_flags,
299 unsigned long *set_kern_flags)
Eric Parisc9180a52007-11-30 13:00:35 -0500300{
David Quigley649f6e72013-05-22 12:50:36 -0400301 return security_ops->sb_set_mnt_opts(sb, opts, kern_flags,
302 set_kern_flags);
Eric Parisc9180a52007-11-30 13:00:35 -0500303}
Eric Parise0007522008-03-05 10:31:54 -0500304EXPORT_SYMBOL(security_sb_set_mnt_opts);
Eric Parisc9180a52007-11-30 13:00:35 -0500305
Jeff Layton094f7b62013-04-01 08:14:24 -0400306int security_sb_clone_mnt_opts(const struct super_block *oldsb,
Eric Parisc9180a52007-11-30 13:00:35 -0500307 struct super_block *newsb)
308{
Jeff Layton094f7b62013-04-01 08:14:24 -0400309 return security_ops->sb_clone_mnt_opts(oldsb, newsb);
Eric Parisc9180a52007-11-30 13:00:35 -0500310}
Eric Parise0007522008-03-05 10:31:54 -0500311EXPORT_SYMBOL(security_sb_clone_mnt_opts);
312
313int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
314{
315 return security_ops->sb_parse_opts_str(options, opts);
316}
317EXPORT_SYMBOL(security_sb_parse_opts_str);
Eric Parisc9180a52007-11-30 13:00:35 -0500318
James Morris20510f22007-10-16 23:31:32 -0700319int security_inode_alloc(struct inode *inode)
320{
321 inode->i_security = NULL;
Eric Parisbc7d2a32010-10-25 14:42:05 -0400322 return security_ops->inode_alloc_security(inode);
James Morris20510f22007-10-16 23:31:32 -0700323}
324
325void security_inode_free(struct inode *inode)
326{
Mimi Zoharf381c272011-03-09 14:13:22 -0500327 integrity_inode_free(inode);
James Morris20510f22007-10-16 23:31:32 -0700328 security_ops->inode_free_security(inode);
329}
330
David Quigleyd47be3d2013-05-22 12:50:34 -0400331int security_dentry_init_security(struct dentry *dentry, int mode,
332 struct qstr *name, void **ctx,
333 u32 *ctxlen)
334{
335 return security_ops->dentry_init_security(dentry, mode, name,
336 ctx, ctxlen);
337}
338EXPORT_SYMBOL(security_dentry_init_security);
339
James Morris20510f22007-10-16 23:31:32 -0700340int security_inode_init_security(struct inode *inode, struct inode *dir,
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400341 const struct qstr *qstr,
342 const initxattrs initxattrs, void *fs_data)
343{
Mimi Zohar823eb1c2011-06-15 21:19:10 -0400344 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
345 struct xattr *lsm_xattr, *evm_xattr, *xattr;
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400346 int ret;
347
348 if (unlikely(IS_PRIVATE(inode)))
Mimi Zoharfb88c2b2011-08-15 10:13:18 -0400349 return 0;
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400350
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400351 if (!initxattrs)
352 return security_ops->inode_init_security(inode, dir, qstr,
353 NULL, NULL, NULL);
Tetsuo Handa95489062013-07-25 05:44:02 +0900354 memset(new_xattrs, 0, sizeof(new_xattrs));
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400355 lsm_xattr = new_xattrs;
356 ret = security_ops->inode_init_security(inode, dir, qstr,
357 &lsm_xattr->name,
358 &lsm_xattr->value,
359 &lsm_xattr->value_len);
360 if (ret)
361 goto out;
Mimi Zohar823eb1c2011-06-15 21:19:10 -0400362
363 evm_xattr = lsm_xattr + 1;
364 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
365 if (ret)
366 goto out;
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400367 ret = initxattrs(inode, new_xattrs, fs_data);
368out:
Tetsuo Handa95489062013-07-25 05:44:02 +0900369 for (xattr = new_xattrs; xattr->value != NULL; xattr++)
Mimi Zohar823eb1c2011-06-15 21:19:10 -0400370 kfree(xattr->value);
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400371 return (ret == -EOPNOTSUPP) ? 0 : ret;
372}
373EXPORT_SYMBOL(security_inode_init_security);
374
375int security_old_inode_init_security(struct inode *inode, struct inode *dir,
Tetsuo Handa95489062013-07-25 05:44:02 +0900376 const struct qstr *qstr, const char **name,
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400377 void **value, size_t *len)
James Morris20510f22007-10-16 23:31:32 -0700378{
379 if (unlikely(IS_PRIVATE(inode)))
Jan Kara30e05322012-01-03 13:14:29 +0100380 return -EOPNOTSUPP;
Eric Paris2a7dba32011-02-01 11:05:39 -0500381 return security_ops->inode_init_security(inode, dir, qstr, name, value,
382 len);
James Morris20510f22007-10-16 23:31:32 -0700383}
Mimi Zohar9d8f13b2011-06-06 15:29:25 -0400384EXPORT_SYMBOL(security_old_inode_init_security);
James Morris20510f22007-10-16 23:31:32 -0700385
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900386#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500387int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900388 unsigned int dev)
389{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900390 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900391 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900392 return security_ops->path_mknod(dir, dentry, mode, dev);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900393}
394EXPORT_SYMBOL(security_path_mknod);
395
Al Viro4572bef2011-11-21 14:56:21 -0500396int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900397{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900398 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900399 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900400 return security_ops->path_mkdir(dir, dentry, mode);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900401}
David Howells82140442010-12-24 14:48:35 +0000402EXPORT_SYMBOL(security_path_mkdir);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900403
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900404int security_path_rmdir(struct path *dir, struct dentry *dentry)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900405{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900406 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900407 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900408 return security_ops->path_rmdir(dir, dentry);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900409}
410
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900411int security_path_unlink(struct path *dir, struct dentry *dentry)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900412{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900413 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900414 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900415 return security_ops->path_unlink(dir, dentry);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900416}
David Howells82140442010-12-24 14:48:35 +0000417EXPORT_SYMBOL(security_path_unlink);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900418
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900419int security_path_symlink(struct path *dir, struct dentry *dentry,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900420 const char *old_name)
421{
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900422 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900423 return 0;
Tetsuo Handa5d0901a2009-11-26 15:24:49 +0900424 return security_ops->path_symlink(dir, dentry, old_name);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900425}
426
427int security_path_link(struct dentry *old_dentry, struct path *new_dir,
428 struct dentry *new_dentry)
429{
430 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
431 return 0;
432 return security_ops->path_link(old_dentry, new_dir, new_dentry);
433}
434
435int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
436 struct path *new_dir, struct dentry *new_dentry)
437{
438 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
439 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
440 return 0;
441 return security_ops->path_rename(old_dir, old_dentry, new_dir,
442 new_dentry);
443}
David Howells82140442010-12-24 14:48:35 +0000444EXPORT_SYMBOL(security_path_rename);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900445
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900446int security_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900447{
448 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
449 return 0;
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900450 return security_ops->path_truncate(path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900451}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900452
Al Virocdcf1162011-12-08 10:51:53 -0500453int security_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900454{
Al Virocdcf1162011-12-08 10:51:53 -0500455 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
Tetsuo Handa89eda062009-10-04 21:49:47 +0900456 return 0;
Al Virocdcf1162011-12-08 10:51:53 -0500457 return security_ops->path_chmod(path, mode);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900458}
459
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600460int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900461{
462 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
463 return 0;
464 return security_ops->path_chown(path, uid, gid);
465}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900466
467int security_path_chroot(struct path *path)
468{
469 return security_ops->path_chroot(path);
470}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900471#endif
472
Al Viro4acdaf22011-07-26 01:42:34 -0400473int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
James Morris20510f22007-10-16 23:31:32 -0700474{
475 if (unlikely(IS_PRIVATE(dir)))
476 return 0;
477 return security_ops->inode_create(dir, dentry, mode);
478}
David Howells800a9642009-04-03 16:42:40 +0100479EXPORT_SYMBOL_GPL(security_inode_create);
James Morris20510f22007-10-16 23:31:32 -0700480
481int security_inode_link(struct dentry *old_dentry, struct inode *dir,
482 struct dentry *new_dentry)
483{
484 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
485 return 0;
486 return security_ops->inode_link(old_dentry, dir, new_dentry);
487}
488
489int security_inode_unlink(struct inode *dir, struct dentry *dentry)
490{
491 if (unlikely(IS_PRIVATE(dentry->d_inode)))
492 return 0;
493 return security_ops->inode_unlink(dir, dentry);
494}
495
496int security_inode_symlink(struct inode *dir, struct dentry *dentry,
497 const char *old_name)
498{
499 if (unlikely(IS_PRIVATE(dir)))
500 return 0;
501 return security_ops->inode_symlink(dir, dentry, old_name);
502}
503
Al Viro18bb1db2011-07-26 01:41:39 -0400504int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
James Morris20510f22007-10-16 23:31:32 -0700505{
506 if (unlikely(IS_PRIVATE(dir)))
507 return 0;
508 return security_ops->inode_mkdir(dir, dentry, mode);
509}
David Howells800a9642009-04-03 16:42:40 +0100510EXPORT_SYMBOL_GPL(security_inode_mkdir);
James Morris20510f22007-10-16 23:31:32 -0700511
512int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
513{
514 if (unlikely(IS_PRIVATE(dentry->d_inode)))
515 return 0;
516 return security_ops->inode_rmdir(dir, dentry);
517}
518
Al Viro1a67aaf2011-07-26 01:52:52 -0400519int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
James Morris20510f22007-10-16 23:31:32 -0700520{
521 if (unlikely(IS_PRIVATE(dir)))
522 return 0;
523 return security_ops->inode_mknod(dir, dentry, mode, dev);
524}
525
526int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
527 struct inode *new_dir, struct dentry *new_dentry)
528{
529 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
530 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
531 return 0;
532 return security_ops->inode_rename(old_dir, old_dentry,
533 new_dir, new_dentry);
534}
535
536int security_inode_readlink(struct dentry *dentry)
537{
538 if (unlikely(IS_PRIVATE(dentry->d_inode)))
539 return 0;
540 return security_ops->inode_readlink(dentry);
541}
542
543int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
544{
545 if (unlikely(IS_PRIVATE(dentry->d_inode)))
546 return 0;
547 return security_ops->inode_follow_link(dentry, nd);
548}
549
Al Virob77b0642008-07-17 09:37:02 -0400550int security_inode_permission(struct inode *inode, int mask)
James Morris20510f22007-10-16 23:31:32 -0700551{
552 if (unlikely(IS_PRIVATE(inode)))
553 return 0;
Al Viroe74f71e2011-06-20 19:38:15 -0400554 return security_ops->inode_permission(inode, mask);
James Morris20510f22007-10-16 23:31:32 -0700555}
556
557int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
558{
Mimi Zohar817b54a2011-05-13 12:53:38 -0400559 int ret;
560
James Morris20510f22007-10-16 23:31:32 -0700561 if (unlikely(IS_PRIVATE(dentry->d_inode)))
562 return 0;
Mimi Zohar817b54a2011-05-13 12:53:38 -0400563 ret = security_ops->inode_setattr(dentry, attr);
564 if (ret)
565 return ret;
566 return evm_inode_setattr(dentry, attr);
James Morris20510f22007-10-16 23:31:32 -0700567}
Miklos Szeredib1da47e2008-07-01 15:01:28 +0200568EXPORT_SYMBOL_GPL(security_inode_setattr);
James Morris20510f22007-10-16 23:31:32 -0700569
570int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
571{
572 if (unlikely(IS_PRIVATE(dentry->d_inode)))
573 return 0;
574 return security_ops->inode_getattr(mnt, dentry);
575}
576
David Howells8f0cfa52008-04-29 00:59:41 -0700577int security_inode_setxattr(struct dentry *dentry, const char *name,
578 const void *value, size_t size, int flags)
James Morris20510f22007-10-16 23:31:32 -0700579{
Mimi Zohar3e1be522011-03-09 14:38:26 -0500580 int ret;
581
James Morris20510f22007-10-16 23:31:32 -0700582 if (unlikely(IS_PRIVATE(dentry->d_inode)))
583 return 0;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500584 ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
585 if (ret)
586 return ret;
Mimi Zohar42c63332011-03-10 18:54:15 -0500587 ret = ima_inode_setxattr(dentry, name, value, size);
588 if (ret)
589 return ret;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500590 return evm_inode_setxattr(dentry, name, value, size);
James Morris20510f22007-10-16 23:31:32 -0700591}
592
David Howells8f0cfa52008-04-29 00:59:41 -0700593void security_inode_post_setxattr(struct dentry *dentry, const char *name,
594 const void *value, size_t size, int flags)
James Morris20510f22007-10-16 23:31:32 -0700595{
596 if (unlikely(IS_PRIVATE(dentry->d_inode)))
597 return;
598 security_ops->inode_post_setxattr(dentry, name, value, size, flags);
Mimi Zohar3e1be522011-03-09 14:38:26 -0500599 evm_inode_post_setxattr(dentry, name, value, size);
James Morris20510f22007-10-16 23:31:32 -0700600}
601
David Howells8f0cfa52008-04-29 00:59:41 -0700602int security_inode_getxattr(struct dentry *dentry, const char *name)
James Morris20510f22007-10-16 23:31:32 -0700603{
604 if (unlikely(IS_PRIVATE(dentry->d_inode)))
605 return 0;
606 return security_ops->inode_getxattr(dentry, name);
607}
608
609int security_inode_listxattr(struct dentry *dentry)
610{
611 if (unlikely(IS_PRIVATE(dentry->d_inode)))
612 return 0;
613 return security_ops->inode_listxattr(dentry);
614}
615
David Howells8f0cfa52008-04-29 00:59:41 -0700616int security_inode_removexattr(struct dentry *dentry, const char *name)
James Morris20510f22007-10-16 23:31:32 -0700617{
Mimi Zohar3e1be522011-03-09 14:38:26 -0500618 int ret;
619
James Morris20510f22007-10-16 23:31:32 -0700620 if (unlikely(IS_PRIVATE(dentry->d_inode)))
621 return 0;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500622 ret = security_ops->inode_removexattr(dentry, name);
623 if (ret)
624 return ret;
Mimi Zohar42c63332011-03-10 18:54:15 -0500625 ret = ima_inode_removexattr(dentry, name);
626 if (ret)
627 return ret;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500628 return evm_inode_removexattr(dentry, name);
James Morris20510f22007-10-16 23:31:32 -0700629}
630
Serge E. Hallynb5376772007-10-16 23:31:36 -0700631int security_inode_need_killpriv(struct dentry *dentry)
632{
633 return security_ops->inode_need_killpriv(dentry);
634}
635
636int security_inode_killpriv(struct dentry *dentry)
637{
638 return security_ops->inode_killpriv(dentry);
639}
640
David P. Quigley42492592008-02-04 22:29:39 -0800641int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
James Morris20510f22007-10-16 23:31:32 -0700642{
643 if (unlikely(IS_PRIVATE(inode)))
James Morris8d952502010-01-14 09:33:28 +1100644 return -EOPNOTSUPP;
David P. Quigley42492592008-02-04 22:29:39 -0800645 return security_ops->inode_getsecurity(inode, name, buffer, alloc);
James Morris20510f22007-10-16 23:31:32 -0700646}
647
648int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
649{
650 if (unlikely(IS_PRIVATE(inode)))
James Morris8d952502010-01-14 09:33:28 +1100651 return -EOPNOTSUPP;
James Morris20510f22007-10-16 23:31:32 -0700652 return security_ops->inode_setsecurity(inode, name, value, size, flags);
653}
654
655int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
656{
657 if (unlikely(IS_PRIVATE(inode)))
658 return 0;
659 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
660}
David Quigleyc9bccef2013-05-22 12:50:45 -0400661EXPORT_SYMBOL(security_inode_listsecurity);
James Morris20510f22007-10-16 23:31:32 -0700662
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200663void security_inode_getsecid(const struct inode *inode, u32 *secid)
664{
665 security_ops->inode_getsecid(inode, secid);
666}
667
James Morris20510f22007-10-16 23:31:32 -0700668int security_file_permission(struct file *file, int mask)
669{
Eric Parisc4ec54b2009-12-17 21:24:34 -0500670 int ret;
671
672 ret = security_ops->file_permission(file, mask);
673 if (ret)
674 return ret;
675
676 return fsnotify_perm(file, mask);
James Morris20510f22007-10-16 23:31:32 -0700677}
678
679int security_file_alloc(struct file *file)
680{
681 return security_ops->file_alloc_security(file);
682}
683
684void security_file_free(struct file *file)
685{
686 security_ops->file_free_security(file);
687}
688
689int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
690{
691 return security_ops->file_ioctl(file, cmd, arg);
692}
693
Al Viro98de59b2012-05-30 19:58:30 -0400694static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
James Morris20510f22007-10-16 23:31:32 -0700695{
Al Viro8b3ec682012-05-30 17:11:23 -0400696 /*
Al Viro98de59b2012-05-30 19:58:30 -0400697 * Does we have PROT_READ and does the application expect
698 * it to imply PROT_EXEC? If not, nothing to talk about...
Al Viro8b3ec682012-05-30 17:11:23 -0400699 */
Al Viro98de59b2012-05-30 19:58:30 -0400700 if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
701 return prot;
Al Viro8b3ec682012-05-30 17:11:23 -0400702 if (!(current->personality & READ_IMPLIES_EXEC))
Al Viro98de59b2012-05-30 19:58:30 -0400703 return prot;
704 /*
705 * if that's an anonymous mapping, let it.
706 */
707 if (!file)
708 return prot | PROT_EXEC;
709 /*
710 * ditto if it's not on noexec mount, except that on !MMU we need
711 * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
712 */
713 if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) {
Al Viro8b3ec682012-05-30 17:11:23 -0400714#ifndef CONFIG_MMU
715 unsigned long caps = 0;
716 struct address_space *mapping = file->f_mapping;
717 if (mapping && mapping->backing_dev_info)
718 caps = mapping->backing_dev_info->capabilities;
719 if (!(caps & BDI_CAP_EXEC_MAP))
Al Viro98de59b2012-05-30 19:58:30 -0400720 return prot;
Al Viro8b3ec682012-05-30 17:11:23 -0400721#endif
Al Viro98de59b2012-05-30 19:58:30 -0400722 return prot | PROT_EXEC;
Al Viro8b3ec682012-05-30 17:11:23 -0400723 }
Al Viro98de59b2012-05-30 19:58:30 -0400724 /* anything on noexec mount won't get PROT_EXEC */
725 return prot;
726}
727
728int security_mmap_file(struct file *file, unsigned long prot,
729 unsigned long flags)
730{
731 int ret;
732 ret = security_ops->mmap_file(file, prot,
733 mmap_prot(file, prot), flags);
Mimi Zohar6c21a7f2009-10-22 17:30:13 -0400734 if (ret)
735 return ret;
736 return ima_file_mmap(file, prot);
James Morris20510f22007-10-16 23:31:32 -0700737}
738
Al Viroe5467852012-05-30 13:30:51 -0400739int security_mmap_addr(unsigned long addr)
740{
741 return security_ops->mmap_addr(addr);
742}
743
James Morris20510f22007-10-16 23:31:32 -0700744int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
745 unsigned long prot)
746{
747 return security_ops->file_mprotect(vma, reqprot, prot);
748}
749
750int security_file_lock(struct file *file, unsigned int cmd)
751{
752 return security_ops->file_lock(file, cmd);
753}
754
755int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
756{
757 return security_ops->file_fcntl(file, cmd, arg);
758}
759
760int security_file_set_fowner(struct file *file)
761{
762 return security_ops->file_set_fowner(file);
763}
764
765int security_file_send_sigiotask(struct task_struct *tsk,
766 struct fown_struct *fown, int sig)
767{
768 return security_ops->file_send_sigiotask(tsk, fown, sig);
769}
770
771int security_file_receive(struct file *file)
772{
773 return security_ops->file_receive(file);
774}
775
Eric Paris83d49852012-04-04 13:45:40 -0400776int security_file_open(struct file *file, const struct cred *cred)
James Morris20510f22007-10-16 23:31:32 -0700777{
Eric Parisc4ec54b2009-12-17 21:24:34 -0500778 int ret;
779
Eric Paris83d49852012-04-04 13:45:40 -0400780 ret = security_ops->file_open(file, cred);
Eric Parisc4ec54b2009-12-17 21:24:34 -0500781 if (ret)
782 return ret;
783
784 return fsnotify_perm(file, MAY_OPEN);
James Morris20510f22007-10-16 23:31:32 -0700785}
786
787int security_task_create(unsigned long clone_flags)
788{
789 return security_ops->task_create(clone_flags);
790}
791
Kees Cook1a2a4d02011-12-21 12:17:03 -0800792void security_task_free(struct task_struct *task)
793{
Kees Cookc6993e42012-09-04 13:32:13 -0700794#ifdef CONFIG_SECURITY_YAMA_STACKED
795 yama_task_free(task);
796#endif
Kees Cook1a2a4d02011-12-21 12:17:03 -0800797 security_ops->task_free(task);
798}
799
David Howellsee18d642009-09-02 09:14:21 +0100800int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
801{
802 return security_ops->cred_alloc_blank(cred, gfp);
803}
804
David Howellsf1752ee2008-11-14 10:39:17 +1100805void security_cred_free(struct cred *cred)
James Morris20510f22007-10-16 23:31:32 -0700806{
David Howellsf1752ee2008-11-14 10:39:17 +1100807 security_ops->cred_free(cred);
James Morris20510f22007-10-16 23:31:32 -0700808}
809
David Howellsd84f4f92008-11-14 10:39:23 +1100810int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
811{
812 return security_ops->cred_prepare(new, old, gfp);
813}
814
David Howellsee18d642009-09-02 09:14:21 +0100815void security_transfer_creds(struct cred *new, const struct cred *old)
816{
817 security_ops->cred_transfer(new, old);
818}
819
David Howells3a3b7ce2008-11-14 10:39:28 +1100820int security_kernel_act_as(struct cred *new, u32 secid)
821{
822 return security_ops->kernel_act_as(new, secid);
823}
824
825int security_kernel_create_files_as(struct cred *new, struct inode *inode)
826{
827 return security_ops->kernel_create_files_as(new, inode);
828}
829
Eric Parisdd8dbf22009-11-03 16:35:32 +1100830int security_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400831{
Eric Parisdd8dbf22009-11-03 16:35:32 +1100832 return security_ops->kernel_module_request(kmod_name);
Eric Paris91884992009-08-13 09:44:57 -0400833}
834
Kees Cook2e72d512012-10-16 07:32:07 +1030835int security_kernel_module_from_file(struct file *file)
836{
Mimi Zoharfdf90722012-10-16 12:40:08 +1030837 int ret;
838
839 ret = security_ops->kernel_module_from_file(file);
840 if (ret)
841 return ret;
842 return ima_module_check(file);
Kees Cook2e72d512012-10-16 07:32:07 +1030843}
844
David Howellsd84f4f92008-11-14 10:39:23 +1100845int security_task_fix_setuid(struct cred *new, const struct cred *old,
846 int flags)
James Morris20510f22007-10-16 23:31:32 -0700847{
David Howellsd84f4f92008-11-14 10:39:23 +1100848 return security_ops->task_fix_setuid(new, old, flags);
James Morris20510f22007-10-16 23:31:32 -0700849}
850
James Morris20510f22007-10-16 23:31:32 -0700851int security_task_setpgid(struct task_struct *p, pid_t pgid)
852{
853 return security_ops->task_setpgid(p, pgid);
854}
855
856int security_task_getpgid(struct task_struct *p)
857{
858 return security_ops->task_getpgid(p);
859}
860
861int security_task_getsid(struct task_struct *p)
862{
863 return security_ops->task_getsid(p);
864}
865
866void security_task_getsecid(struct task_struct *p, u32 *secid)
867{
868 security_ops->task_getsecid(p, secid);
869}
870EXPORT_SYMBOL(security_task_getsecid);
871
James Morris20510f22007-10-16 23:31:32 -0700872int security_task_setnice(struct task_struct *p, int nice)
873{
874 return security_ops->task_setnice(p, nice);
875}
876
877int security_task_setioprio(struct task_struct *p, int ioprio)
878{
879 return security_ops->task_setioprio(p, ioprio);
880}
881
882int security_task_getioprio(struct task_struct *p)
883{
884 return security_ops->task_getioprio(p);
885}
886
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200887int security_task_setrlimit(struct task_struct *p, unsigned int resource,
888 struct rlimit *new_rlim)
James Morris20510f22007-10-16 23:31:32 -0700889{
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200890 return security_ops->task_setrlimit(p, resource, new_rlim);
James Morris20510f22007-10-16 23:31:32 -0700891}
892
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +0900893int security_task_setscheduler(struct task_struct *p)
James Morris20510f22007-10-16 23:31:32 -0700894{
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +0900895 return security_ops->task_setscheduler(p);
James Morris20510f22007-10-16 23:31:32 -0700896}
897
898int security_task_getscheduler(struct task_struct *p)
899{
900 return security_ops->task_getscheduler(p);
901}
902
903int security_task_movememory(struct task_struct *p)
904{
905 return security_ops->task_movememory(p);
906}
907
908int security_task_kill(struct task_struct *p, struct siginfo *info,
909 int sig, u32 secid)
910{
911 return security_ops->task_kill(p, info, sig, secid);
912}
913
914int security_task_wait(struct task_struct *p)
915{
916 return security_ops->task_wait(p);
917}
918
919int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +1100920 unsigned long arg4, unsigned long arg5)
James Morris20510f22007-10-16 23:31:32 -0700921{
Kees Cookc6993e42012-09-04 13:32:13 -0700922#ifdef CONFIG_SECURITY_YAMA_STACKED
923 int rc;
924 rc = yama_task_prctl(option, arg2, arg3, arg4, arg5);
925 if (rc != -ENOSYS)
926 return rc;
927#endif
David Howellsd84f4f92008-11-14 10:39:23 +1100928 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
James Morris20510f22007-10-16 23:31:32 -0700929}
930
931void security_task_to_inode(struct task_struct *p, struct inode *inode)
932{
933 security_ops->task_to_inode(p, inode);
934}
935
936int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
937{
938 return security_ops->ipc_permission(ipcp, flag);
939}
940
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200941void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
942{
943 security_ops->ipc_getsecid(ipcp, secid);
944}
945
James Morris20510f22007-10-16 23:31:32 -0700946int security_msg_msg_alloc(struct msg_msg *msg)
947{
948 return security_ops->msg_msg_alloc_security(msg);
949}
950
951void security_msg_msg_free(struct msg_msg *msg)
952{
953 security_ops->msg_msg_free_security(msg);
954}
955
956int security_msg_queue_alloc(struct msg_queue *msq)
957{
958 return security_ops->msg_queue_alloc_security(msq);
959}
960
961void security_msg_queue_free(struct msg_queue *msq)
962{
963 security_ops->msg_queue_free_security(msq);
964}
965
966int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
967{
968 return security_ops->msg_queue_associate(msq, msqflg);
969}
970
971int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
972{
973 return security_ops->msg_queue_msgctl(msq, cmd);
974}
975
976int security_msg_queue_msgsnd(struct msg_queue *msq,
977 struct msg_msg *msg, int msqflg)
978{
979 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
980}
981
982int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
983 struct task_struct *target, long type, int mode)
984{
985 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
986}
987
988int security_shm_alloc(struct shmid_kernel *shp)
989{
990 return security_ops->shm_alloc_security(shp);
991}
992
993void security_shm_free(struct shmid_kernel *shp)
994{
995 security_ops->shm_free_security(shp);
996}
997
998int security_shm_associate(struct shmid_kernel *shp, int shmflg)
999{
1000 return security_ops->shm_associate(shp, shmflg);
1001}
1002
1003int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1004{
1005 return security_ops->shm_shmctl(shp, cmd);
1006}
1007
1008int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1009{
1010 return security_ops->shm_shmat(shp, shmaddr, shmflg);
1011}
1012
1013int security_sem_alloc(struct sem_array *sma)
1014{
1015 return security_ops->sem_alloc_security(sma);
1016}
1017
1018void security_sem_free(struct sem_array *sma)
1019{
1020 security_ops->sem_free_security(sma);
1021}
1022
1023int security_sem_associate(struct sem_array *sma, int semflg)
1024{
1025 return security_ops->sem_associate(sma, semflg);
1026}
1027
1028int security_sem_semctl(struct sem_array *sma, int cmd)
1029{
1030 return security_ops->sem_semctl(sma, cmd);
1031}
1032
1033int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1034 unsigned nsops, int alter)
1035{
1036 return security_ops->sem_semop(sma, sops, nsops, alter);
1037}
1038
1039void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1040{
1041 if (unlikely(inode && IS_PRIVATE(inode)))
1042 return;
1043 security_ops->d_instantiate(dentry, inode);
1044}
1045EXPORT_SYMBOL(security_d_instantiate);
1046
1047int security_getprocattr(struct task_struct *p, char *name, char **value)
1048{
1049 return security_ops->getprocattr(p, name, value);
1050}
1051
1052int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1053{
1054 return security_ops->setprocattr(p, name, value, size);
1055}
1056
1057int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1058{
1059 return security_ops->netlink_send(sk, skb);
1060}
James Morris20510f22007-10-16 23:31:32 -07001061
David Quigley746df9b2013-05-22 12:50:35 -04001062int security_ismaclabel(const char *name)
1063{
1064 return security_ops->ismaclabel(name);
1065}
1066EXPORT_SYMBOL(security_ismaclabel);
1067
James Morris20510f22007-10-16 23:31:32 -07001068int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1069{
1070 return security_ops->secid_to_secctx(secid, secdata, seclen);
1071}
1072EXPORT_SYMBOL(security_secid_to_secctx);
1073
David Howells7bf570d2008-04-29 20:52:51 +01001074int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
David Howells63cb3442008-01-15 23:47:35 +00001075{
1076 return security_ops->secctx_to_secid(secdata, seclen, secid);
1077}
1078EXPORT_SYMBOL(security_secctx_to_secid);
1079
James Morris20510f22007-10-16 23:31:32 -07001080void security_release_secctx(char *secdata, u32 seclen)
1081{
James Morris65fc7662008-06-12 01:00:10 +10001082 security_ops->release_secctx(secdata, seclen);
James Morris20510f22007-10-16 23:31:32 -07001083}
1084EXPORT_SYMBOL(security_release_secctx);
1085
David P. Quigley1ee65e32009-09-03 14:25:57 -04001086int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1087{
1088 return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
1089}
1090EXPORT_SYMBOL(security_inode_notifysecctx);
1091
1092int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1093{
1094 return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1095}
1096EXPORT_SYMBOL(security_inode_setsecctx);
1097
1098int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1099{
1100 return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1101}
1102EXPORT_SYMBOL(security_inode_getsecctx);
1103
James Morris20510f22007-10-16 23:31:32 -07001104#ifdef CONFIG_SECURITY_NETWORK
1105
David S. Miller3610cda2011-01-05 15:38:53 -08001106int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
James Morris20510f22007-10-16 23:31:32 -07001107{
1108 return security_ops->unix_stream_connect(sock, other, newsk);
1109}
1110EXPORT_SYMBOL(security_unix_stream_connect);
1111
1112int security_unix_may_send(struct socket *sock, struct socket *other)
1113{
1114 return security_ops->unix_may_send(sock, other);
1115}
1116EXPORT_SYMBOL(security_unix_may_send);
1117
1118int security_socket_create(int family, int type, int protocol, int kern)
1119{
1120 return security_ops->socket_create(family, type, protocol, kern);
1121}
1122
1123int security_socket_post_create(struct socket *sock, int family,
1124 int type, int protocol, int kern)
1125{
1126 return security_ops->socket_post_create(sock, family, type,
1127 protocol, kern);
1128}
1129
1130int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1131{
1132 return security_ops->socket_bind(sock, address, addrlen);
1133}
1134
1135int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1136{
1137 return security_ops->socket_connect(sock, address, addrlen);
1138}
1139
1140int security_socket_listen(struct socket *sock, int backlog)
1141{
1142 return security_ops->socket_listen(sock, backlog);
1143}
1144
1145int security_socket_accept(struct socket *sock, struct socket *newsock)
1146{
1147 return security_ops->socket_accept(sock, newsock);
1148}
1149
James Morris20510f22007-10-16 23:31:32 -07001150int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1151{
1152 return security_ops->socket_sendmsg(sock, msg, size);
1153}
1154
1155int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1156 int size, int flags)
1157{
1158 return security_ops->socket_recvmsg(sock, msg, size, flags);
1159}
1160
1161int security_socket_getsockname(struct socket *sock)
1162{
1163 return security_ops->socket_getsockname(sock);
1164}
1165
1166int security_socket_getpeername(struct socket *sock)
1167{
1168 return security_ops->socket_getpeername(sock);
1169}
1170
1171int security_socket_getsockopt(struct socket *sock, int level, int optname)
1172{
1173 return security_ops->socket_getsockopt(sock, level, optname);
1174}
1175
1176int security_socket_setsockopt(struct socket *sock, int level, int optname)
1177{
1178 return security_ops->socket_setsockopt(sock, level, optname);
1179}
1180
1181int security_socket_shutdown(struct socket *sock, int how)
1182{
1183 return security_ops->socket_shutdown(sock, how);
1184}
1185
1186int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1187{
1188 return security_ops->socket_sock_rcv_skb(sk, skb);
1189}
1190EXPORT_SYMBOL(security_sock_rcv_skb);
1191
1192int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1193 int __user *optlen, unsigned len)
1194{
1195 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1196}
1197
1198int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1199{
1200 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1201}
1202EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1203
1204int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1205{
1206 return security_ops->sk_alloc_security(sk, family, priority);
1207}
1208
1209void security_sk_free(struct sock *sk)
1210{
James Morris65fc7662008-06-12 01:00:10 +10001211 security_ops->sk_free_security(sk);
James Morris20510f22007-10-16 23:31:32 -07001212}
1213
1214void security_sk_clone(const struct sock *sk, struct sock *newsk)
1215{
James Morris65fc7662008-06-12 01:00:10 +10001216 security_ops->sk_clone_security(sk, newsk);
James Morris20510f22007-10-16 23:31:32 -07001217}
Paul Moore6230c9b2011-10-07 09:40:59 +00001218EXPORT_SYMBOL(security_sk_clone);
James Morris20510f22007-10-16 23:31:32 -07001219
1220void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1221{
David S. Miller1d28f422011-03-12 00:29:39 -05001222 security_ops->sk_getsecid(sk, &fl->flowi_secid);
James Morris20510f22007-10-16 23:31:32 -07001223}
1224EXPORT_SYMBOL(security_sk_classify_flow);
1225
1226void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1227{
1228 security_ops->req_classify_flow(req, fl);
1229}
1230EXPORT_SYMBOL(security_req_classify_flow);
1231
1232void security_sock_graft(struct sock *sk, struct socket *parent)
1233{
1234 security_ops->sock_graft(sk, parent);
1235}
1236EXPORT_SYMBOL(security_sock_graft);
1237
1238int security_inet_conn_request(struct sock *sk,
1239 struct sk_buff *skb, struct request_sock *req)
1240{
1241 return security_ops->inet_conn_request(sk, skb, req);
1242}
1243EXPORT_SYMBOL(security_inet_conn_request);
1244
1245void security_inet_csk_clone(struct sock *newsk,
1246 const struct request_sock *req)
1247{
1248 security_ops->inet_csk_clone(newsk, req);
1249}
1250
1251void security_inet_conn_established(struct sock *sk,
1252 struct sk_buff *skb)
1253{
1254 security_ops->inet_conn_established(sk, skb);
1255}
1256
Eric Paris2606fd12010-10-13 16:24:41 -04001257int security_secmark_relabel_packet(u32 secid)
1258{
1259 return security_ops->secmark_relabel_packet(secid);
1260}
1261EXPORT_SYMBOL(security_secmark_relabel_packet);
1262
1263void security_secmark_refcount_inc(void)
1264{
1265 security_ops->secmark_refcount_inc();
1266}
1267EXPORT_SYMBOL(security_secmark_refcount_inc);
1268
1269void security_secmark_refcount_dec(void)
1270{
1271 security_ops->secmark_refcount_dec();
1272}
1273EXPORT_SYMBOL(security_secmark_refcount_dec);
1274
Paul Moore5dbbaf22013-01-14 07:12:19 +00001275int security_tun_dev_alloc_security(void **security)
1276{
1277 return security_ops->tun_dev_alloc_security(security);
1278}
1279EXPORT_SYMBOL(security_tun_dev_alloc_security);
1280
1281void security_tun_dev_free_security(void *security)
1282{
1283 security_ops->tun_dev_free_security(security);
1284}
1285EXPORT_SYMBOL(security_tun_dev_free_security);
1286
Paul Moore2b980db2009-08-28 18:12:43 -04001287int security_tun_dev_create(void)
1288{
1289 return security_ops->tun_dev_create();
1290}
1291EXPORT_SYMBOL(security_tun_dev_create);
1292
Paul Moore5dbbaf22013-01-14 07:12:19 +00001293int security_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -04001294{
Paul Moore5dbbaf22013-01-14 07:12:19 +00001295 return security_ops->tun_dev_attach_queue(security);
Paul Moore2b980db2009-08-28 18:12:43 -04001296}
Paul Moore5dbbaf22013-01-14 07:12:19 +00001297EXPORT_SYMBOL(security_tun_dev_attach_queue);
Paul Moore2b980db2009-08-28 18:12:43 -04001298
Paul Moore5dbbaf22013-01-14 07:12:19 +00001299int security_tun_dev_attach(struct sock *sk, void *security)
Paul Moore2b980db2009-08-28 18:12:43 -04001300{
Paul Moore5dbbaf22013-01-14 07:12:19 +00001301 return security_ops->tun_dev_attach(sk, security);
Paul Moore2b980db2009-08-28 18:12:43 -04001302}
1303EXPORT_SYMBOL(security_tun_dev_attach);
1304
Paul Moore5dbbaf22013-01-14 07:12:19 +00001305int security_tun_dev_open(void *security)
1306{
1307 return security_ops->tun_dev_open(security);
1308}
1309EXPORT_SYMBOL(security_tun_dev_open);
1310
Eric Dumazetca10b9e2013-04-08 17:58:11 +00001311void security_skb_owned_by(struct sk_buff *skb, struct sock *sk)
1312{
1313 security_ops->skb_owned_by(skb, sk);
1314}
1315
James Morris20510f22007-10-16 23:31:32 -07001316#endif /* CONFIG_SECURITY_NETWORK */
1317
1318#ifdef CONFIG_SECURITY_NETWORK_XFRM
1319
Paul Moore03e1ad72008-04-12 19:07:52 -07001320int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
James Morris20510f22007-10-16 23:31:32 -07001321{
Paul Moore03e1ad72008-04-12 19:07:52 -07001322 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
James Morris20510f22007-10-16 23:31:32 -07001323}
1324EXPORT_SYMBOL(security_xfrm_policy_alloc);
1325
Paul Moore03e1ad72008-04-12 19:07:52 -07001326int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1327 struct xfrm_sec_ctx **new_ctxp)
James Morris20510f22007-10-16 23:31:32 -07001328{
Paul Moore03e1ad72008-04-12 19:07:52 -07001329 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
James Morris20510f22007-10-16 23:31:32 -07001330}
1331
Paul Moore03e1ad72008-04-12 19:07:52 -07001332void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
James Morris20510f22007-10-16 23:31:32 -07001333{
Paul Moore03e1ad72008-04-12 19:07:52 -07001334 security_ops->xfrm_policy_free_security(ctx);
James Morris20510f22007-10-16 23:31:32 -07001335}
1336EXPORT_SYMBOL(security_xfrm_policy_free);
1337
Paul Moore03e1ad72008-04-12 19:07:52 -07001338int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
James Morris20510f22007-10-16 23:31:32 -07001339{
Paul Moore03e1ad72008-04-12 19:07:52 -07001340 return security_ops->xfrm_policy_delete_security(ctx);
James Morris20510f22007-10-16 23:31:32 -07001341}
1342
1343int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1344{
1345 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1346}
1347EXPORT_SYMBOL(security_xfrm_state_alloc);
1348
1349int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1350 struct xfrm_sec_ctx *polsec, u32 secid)
1351{
1352 if (!polsec)
1353 return 0;
1354 /*
1355 * We want the context to be taken from secid which is usually
1356 * from the sock.
1357 */
1358 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1359}
1360
1361int security_xfrm_state_delete(struct xfrm_state *x)
1362{
1363 return security_ops->xfrm_state_delete_security(x);
1364}
1365EXPORT_SYMBOL(security_xfrm_state_delete);
1366
1367void security_xfrm_state_free(struct xfrm_state *x)
1368{
1369 security_ops->xfrm_state_free_security(x);
1370}
1371
Paul Moore03e1ad72008-04-12 19:07:52 -07001372int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
James Morris20510f22007-10-16 23:31:32 -07001373{
Paul Moore03e1ad72008-04-12 19:07:52 -07001374 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
James Morris20510f22007-10-16 23:31:32 -07001375}
1376
1377int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
David S. Millere33f7702011-02-22 18:13:15 -08001378 struct xfrm_policy *xp,
1379 const struct flowi *fl)
James Morris20510f22007-10-16 23:31:32 -07001380{
1381 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1382}
1383
1384int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1385{
1386 return security_ops->xfrm_decode_session(skb, secid, 1);
1387}
1388
1389void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1390{
David S. Miller1d28f422011-03-12 00:29:39 -05001391 int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
James Morris20510f22007-10-16 23:31:32 -07001392
1393 BUG_ON(rc);
1394}
1395EXPORT_SYMBOL(security_skb_classify_flow);
1396
1397#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1398
1399#ifdef CONFIG_KEYS
1400
David Howellsd84f4f92008-11-14 10:39:23 +11001401int security_key_alloc(struct key *key, const struct cred *cred,
1402 unsigned long flags)
James Morris20510f22007-10-16 23:31:32 -07001403{
David Howellsd84f4f92008-11-14 10:39:23 +11001404 return security_ops->key_alloc(key, cred, flags);
James Morris20510f22007-10-16 23:31:32 -07001405}
1406
1407void security_key_free(struct key *key)
1408{
1409 security_ops->key_free(key);
1410}
1411
1412int security_key_permission(key_ref_t key_ref,
David Howellsd84f4f92008-11-14 10:39:23 +11001413 const struct cred *cred, key_perm_t perm)
James Morris20510f22007-10-16 23:31:32 -07001414{
David Howellsd84f4f92008-11-14 10:39:23 +11001415 return security_ops->key_permission(key_ref, cred, perm);
James Morris20510f22007-10-16 23:31:32 -07001416}
1417
David Howells70a5bb72008-04-29 01:01:26 -07001418int security_key_getsecurity(struct key *key, char **_buffer)
1419{
1420 return security_ops->key_getsecurity(key, _buffer);
1421}
1422
James Morris20510f22007-10-16 23:31:32 -07001423#endif /* CONFIG_KEYS */
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001424
1425#ifdef CONFIG_AUDIT
1426
1427int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1428{
1429 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1430}
1431
1432int security_audit_rule_known(struct audit_krule *krule)
1433{
1434 return security_ops->audit_rule_known(krule);
1435}
1436
1437void security_audit_rule_free(void *lsmrule)
1438{
1439 security_ops->audit_rule_free(lsmrule);
1440}
1441
1442int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1443 struct audit_context *actx)
1444{
1445 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1446}
1447
1448#endif /* CONFIG_AUDIT */