blob: 35d37d0f0d491018491ee9ede72e91827f3d3ed7 [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,
Miklos Szeredi0b3974e2014-04-01 17:08:43 +0200436 struct path *new_dir, struct dentry *new_dentry,
437 unsigned int flags)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900438{
439 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
440 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
441 return 0;
Miklos Szeredida1ce062014-04-01 17:08:43 +0200442
443 if (flags & RENAME_EXCHANGE) {
444 int err = security_ops->path_rename(new_dir, new_dentry,
445 old_dir, old_dentry);
446 if (err)
447 return err;
448 }
449
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900450 return security_ops->path_rename(old_dir, old_dentry, new_dir,
451 new_dentry);
452}
David Howells82140442010-12-24 14:48:35 +0000453EXPORT_SYMBOL(security_path_rename);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900454
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900455int security_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900456{
457 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
458 return 0;
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900459 return security_ops->path_truncate(path);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900460}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900461
Al Virocdcf1162011-12-08 10:51:53 -0500462int security_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900463{
Al Virocdcf1162011-12-08 10:51:53 -0500464 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
Tetsuo Handa89eda062009-10-04 21:49:47 +0900465 return 0;
Al Virocdcf1162011-12-08 10:51:53 -0500466 return security_ops->path_chmod(path, mode);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900467}
468
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600469int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900470{
471 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
472 return 0;
473 return security_ops->path_chown(path, uid, gid);
474}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900475
476int security_path_chroot(struct path *path)
477{
478 return security_ops->path_chroot(path);
479}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900480#endif
481
Al Viro4acdaf22011-07-26 01:42:34 -0400482int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
James Morris20510f22007-10-16 23:31:32 -0700483{
484 if (unlikely(IS_PRIVATE(dir)))
485 return 0;
486 return security_ops->inode_create(dir, dentry, mode);
487}
David Howells800a9642009-04-03 16:42:40 +0100488EXPORT_SYMBOL_GPL(security_inode_create);
James Morris20510f22007-10-16 23:31:32 -0700489
490int security_inode_link(struct dentry *old_dentry, struct inode *dir,
491 struct dentry *new_dentry)
492{
493 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
494 return 0;
495 return security_ops->inode_link(old_dentry, dir, new_dentry);
496}
497
498int security_inode_unlink(struct inode *dir, struct dentry *dentry)
499{
500 if (unlikely(IS_PRIVATE(dentry->d_inode)))
501 return 0;
502 return security_ops->inode_unlink(dir, dentry);
503}
504
505int security_inode_symlink(struct inode *dir, struct dentry *dentry,
506 const char *old_name)
507{
508 if (unlikely(IS_PRIVATE(dir)))
509 return 0;
510 return security_ops->inode_symlink(dir, dentry, old_name);
511}
512
Al Viro18bb1db2011-07-26 01:41:39 -0400513int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
James Morris20510f22007-10-16 23:31:32 -0700514{
515 if (unlikely(IS_PRIVATE(dir)))
516 return 0;
517 return security_ops->inode_mkdir(dir, dentry, mode);
518}
David Howells800a9642009-04-03 16:42:40 +0100519EXPORT_SYMBOL_GPL(security_inode_mkdir);
James Morris20510f22007-10-16 23:31:32 -0700520
521int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
522{
523 if (unlikely(IS_PRIVATE(dentry->d_inode)))
524 return 0;
525 return security_ops->inode_rmdir(dir, dentry);
526}
527
Al Viro1a67aaf2011-07-26 01:52:52 -0400528int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
James Morris20510f22007-10-16 23:31:32 -0700529{
530 if (unlikely(IS_PRIVATE(dir)))
531 return 0;
532 return security_ops->inode_mknod(dir, dentry, mode, dev);
533}
534
535int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
Miklos Szeredi0b3974e2014-04-01 17:08:43 +0200536 struct inode *new_dir, struct dentry *new_dentry,
537 unsigned int flags)
James Morris20510f22007-10-16 23:31:32 -0700538{
539 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
540 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
541 return 0;
Miklos Szeredida1ce062014-04-01 17:08:43 +0200542
543 if (flags & RENAME_EXCHANGE) {
544 int err = security_ops->inode_rename(new_dir, new_dentry,
545 old_dir, old_dentry);
546 if (err)
547 return err;
548 }
549
James Morris20510f22007-10-16 23:31:32 -0700550 return security_ops->inode_rename(old_dir, old_dentry,
551 new_dir, new_dentry);
552}
553
554int security_inode_readlink(struct dentry *dentry)
555{
556 if (unlikely(IS_PRIVATE(dentry->d_inode)))
557 return 0;
558 return security_ops->inode_readlink(dentry);
559}
560
561int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
562{
563 if (unlikely(IS_PRIVATE(dentry->d_inode)))
564 return 0;
565 return security_ops->inode_follow_link(dentry, nd);
566}
567
Al Virob77b0642008-07-17 09:37:02 -0400568int security_inode_permission(struct inode *inode, int mask)
James Morris20510f22007-10-16 23:31:32 -0700569{
570 if (unlikely(IS_PRIVATE(inode)))
571 return 0;
Al Viroe74f71e2011-06-20 19:38:15 -0400572 return security_ops->inode_permission(inode, mask);
James Morris20510f22007-10-16 23:31:32 -0700573}
574
575int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
576{
Mimi Zohar817b54a2011-05-13 12:53:38 -0400577 int ret;
578
James Morris20510f22007-10-16 23:31:32 -0700579 if (unlikely(IS_PRIVATE(dentry->d_inode)))
580 return 0;
Mimi Zohar817b54a2011-05-13 12:53:38 -0400581 ret = security_ops->inode_setattr(dentry, attr);
582 if (ret)
583 return ret;
584 return evm_inode_setattr(dentry, attr);
James Morris20510f22007-10-16 23:31:32 -0700585}
Miklos Szeredib1da47e2008-07-01 15:01:28 +0200586EXPORT_SYMBOL_GPL(security_inode_setattr);
James Morris20510f22007-10-16 23:31:32 -0700587
588int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
589{
590 if (unlikely(IS_PRIVATE(dentry->d_inode)))
591 return 0;
592 return security_ops->inode_getattr(mnt, dentry);
593}
594
David Howells8f0cfa52008-04-29 00:59:41 -0700595int security_inode_setxattr(struct dentry *dentry, const char *name,
596 const void *value, size_t size, int flags)
James Morris20510f22007-10-16 23:31:32 -0700597{
Mimi Zohar3e1be522011-03-09 14:38:26 -0500598 int ret;
599
James Morris20510f22007-10-16 23:31:32 -0700600 if (unlikely(IS_PRIVATE(dentry->d_inode)))
601 return 0;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500602 ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
603 if (ret)
604 return ret;
Mimi Zohar42c63332011-03-10 18:54:15 -0500605 ret = ima_inode_setxattr(dentry, name, value, size);
606 if (ret)
607 return ret;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500608 return evm_inode_setxattr(dentry, name, value, size);
James Morris20510f22007-10-16 23:31:32 -0700609}
610
David Howells8f0cfa52008-04-29 00:59:41 -0700611void security_inode_post_setxattr(struct dentry *dentry, const char *name,
612 const void *value, size_t size, int flags)
James Morris20510f22007-10-16 23:31:32 -0700613{
614 if (unlikely(IS_PRIVATE(dentry->d_inode)))
615 return;
616 security_ops->inode_post_setxattr(dentry, name, value, size, flags);
Mimi Zohar3e1be522011-03-09 14:38:26 -0500617 evm_inode_post_setxattr(dentry, name, value, size);
James Morris20510f22007-10-16 23:31:32 -0700618}
619
David Howells8f0cfa52008-04-29 00:59:41 -0700620int security_inode_getxattr(struct dentry *dentry, const char *name)
James Morris20510f22007-10-16 23:31:32 -0700621{
622 if (unlikely(IS_PRIVATE(dentry->d_inode)))
623 return 0;
624 return security_ops->inode_getxattr(dentry, name);
625}
626
627int security_inode_listxattr(struct dentry *dentry)
628{
629 if (unlikely(IS_PRIVATE(dentry->d_inode)))
630 return 0;
631 return security_ops->inode_listxattr(dentry);
632}
633
David Howells8f0cfa52008-04-29 00:59:41 -0700634int security_inode_removexattr(struct dentry *dentry, const char *name)
James Morris20510f22007-10-16 23:31:32 -0700635{
Mimi Zohar3e1be522011-03-09 14:38:26 -0500636 int ret;
637
James Morris20510f22007-10-16 23:31:32 -0700638 if (unlikely(IS_PRIVATE(dentry->d_inode)))
639 return 0;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500640 ret = security_ops->inode_removexattr(dentry, name);
641 if (ret)
642 return ret;
Mimi Zohar42c63332011-03-10 18:54:15 -0500643 ret = ima_inode_removexattr(dentry, name);
644 if (ret)
645 return ret;
Mimi Zohar3e1be522011-03-09 14:38:26 -0500646 return evm_inode_removexattr(dentry, name);
James Morris20510f22007-10-16 23:31:32 -0700647}
648
Serge E. Hallynb5376772007-10-16 23:31:36 -0700649int security_inode_need_killpriv(struct dentry *dentry)
650{
651 return security_ops->inode_need_killpriv(dentry);
652}
653
654int security_inode_killpriv(struct dentry *dentry)
655{
656 return security_ops->inode_killpriv(dentry);
657}
658
David P. Quigley42492592008-02-04 22:29:39 -0800659int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
James Morris20510f22007-10-16 23:31:32 -0700660{
661 if (unlikely(IS_PRIVATE(inode)))
James Morris8d952502010-01-14 09:33:28 +1100662 return -EOPNOTSUPP;
David P. Quigley42492592008-02-04 22:29:39 -0800663 return security_ops->inode_getsecurity(inode, name, buffer, alloc);
James Morris20510f22007-10-16 23:31:32 -0700664}
665
666int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
667{
668 if (unlikely(IS_PRIVATE(inode)))
James Morris8d952502010-01-14 09:33:28 +1100669 return -EOPNOTSUPP;
James Morris20510f22007-10-16 23:31:32 -0700670 return security_ops->inode_setsecurity(inode, name, value, size, flags);
671}
672
673int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
674{
675 if (unlikely(IS_PRIVATE(inode)))
676 return 0;
677 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
678}
David Quigleyc9bccef2013-05-22 12:50:45 -0400679EXPORT_SYMBOL(security_inode_listsecurity);
James Morris20510f22007-10-16 23:31:32 -0700680
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200681void security_inode_getsecid(const struct inode *inode, u32 *secid)
682{
683 security_ops->inode_getsecid(inode, secid);
684}
685
James Morris20510f22007-10-16 23:31:32 -0700686int security_file_permission(struct file *file, int mask)
687{
Eric Parisc4ec54b2009-12-17 21:24:34 -0500688 int ret;
689
690 ret = security_ops->file_permission(file, mask);
691 if (ret)
692 return ret;
693
694 return fsnotify_perm(file, mask);
James Morris20510f22007-10-16 23:31:32 -0700695}
696
697int security_file_alloc(struct file *file)
698{
699 return security_ops->file_alloc_security(file);
700}
701
702void security_file_free(struct file *file)
703{
704 security_ops->file_free_security(file);
705}
706
707int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
708{
709 return security_ops->file_ioctl(file, cmd, arg);
710}
711
Al Viro98de59b2012-05-30 19:58:30 -0400712static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
James Morris20510f22007-10-16 23:31:32 -0700713{
Al Viro8b3ec682012-05-30 17:11:23 -0400714 /*
Al Viro98de59b2012-05-30 19:58:30 -0400715 * Does we have PROT_READ and does the application expect
716 * it to imply PROT_EXEC? If not, nothing to talk about...
Al Viro8b3ec682012-05-30 17:11:23 -0400717 */
Al Viro98de59b2012-05-30 19:58:30 -0400718 if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
719 return prot;
Al Viro8b3ec682012-05-30 17:11:23 -0400720 if (!(current->personality & READ_IMPLIES_EXEC))
Al Viro98de59b2012-05-30 19:58:30 -0400721 return prot;
722 /*
723 * if that's an anonymous mapping, let it.
724 */
725 if (!file)
726 return prot | PROT_EXEC;
727 /*
728 * ditto if it's not on noexec mount, except that on !MMU we need
729 * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
730 */
731 if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) {
Al Viro8b3ec682012-05-30 17:11:23 -0400732#ifndef CONFIG_MMU
733 unsigned long caps = 0;
734 struct address_space *mapping = file->f_mapping;
735 if (mapping && mapping->backing_dev_info)
736 caps = mapping->backing_dev_info->capabilities;
737 if (!(caps & BDI_CAP_EXEC_MAP))
Al Viro98de59b2012-05-30 19:58:30 -0400738 return prot;
Al Viro8b3ec682012-05-30 17:11:23 -0400739#endif
Al Viro98de59b2012-05-30 19:58:30 -0400740 return prot | PROT_EXEC;
Al Viro8b3ec682012-05-30 17:11:23 -0400741 }
Al Viro98de59b2012-05-30 19:58:30 -0400742 /* anything on noexec mount won't get PROT_EXEC */
743 return prot;
744}
745
746int security_mmap_file(struct file *file, unsigned long prot,
747 unsigned long flags)
748{
749 int ret;
750 ret = security_ops->mmap_file(file, prot,
751 mmap_prot(file, prot), flags);
Mimi Zohar6c21a7f2009-10-22 17:30:13 -0400752 if (ret)
753 return ret;
754 return ima_file_mmap(file, prot);
James Morris20510f22007-10-16 23:31:32 -0700755}
756
Al Viroe5467852012-05-30 13:30:51 -0400757int security_mmap_addr(unsigned long addr)
758{
759 return security_ops->mmap_addr(addr);
760}
761
James Morris20510f22007-10-16 23:31:32 -0700762int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
763 unsigned long prot)
764{
765 return security_ops->file_mprotect(vma, reqprot, prot);
766}
767
768int security_file_lock(struct file *file, unsigned int cmd)
769{
770 return security_ops->file_lock(file, cmd);
771}
772
773int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
774{
775 return security_ops->file_fcntl(file, cmd, arg);
776}
777
778int security_file_set_fowner(struct file *file)
779{
780 return security_ops->file_set_fowner(file);
781}
782
783int security_file_send_sigiotask(struct task_struct *tsk,
784 struct fown_struct *fown, int sig)
785{
786 return security_ops->file_send_sigiotask(tsk, fown, sig);
787}
788
789int security_file_receive(struct file *file)
790{
791 return security_ops->file_receive(file);
792}
793
Eric Paris83d49852012-04-04 13:45:40 -0400794int security_file_open(struct file *file, const struct cred *cred)
James Morris20510f22007-10-16 23:31:32 -0700795{
Eric Parisc4ec54b2009-12-17 21:24:34 -0500796 int ret;
797
Eric Paris83d49852012-04-04 13:45:40 -0400798 ret = security_ops->file_open(file, cred);
Eric Parisc4ec54b2009-12-17 21:24:34 -0500799 if (ret)
800 return ret;
801
802 return fsnotify_perm(file, MAY_OPEN);
James Morris20510f22007-10-16 23:31:32 -0700803}
804
805int security_task_create(unsigned long clone_flags)
806{
807 return security_ops->task_create(clone_flags);
808}
809
Kees Cook1a2a4d02011-12-21 12:17:03 -0800810void security_task_free(struct task_struct *task)
811{
Kees Cookc6993e42012-09-04 13:32:13 -0700812#ifdef CONFIG_SECURITY_YAMA_STACKED
813 yama_task_free(task);
814#endif
Kees Cook1a2a4d02011-12-21 12:17:03 -0800815 security_ops->task_free(task);
816}
817
David Howellsee18d642009-09-02 09:14:21 +0100818int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
819{
820 return security_ops->cred_alloc_blank(cred, gfp);
821}
822
David Howellsf1752ee2008-11-14 10:39:17 +1100823void security_cred_free(struct cred *cred)
James Morris20510f22007-10-16 23:31:32 -0700824{
David Howellsf1752ee2008-11-14 10:39:17 +1100825 security_ops->cred_free(cred);
James Morris20510f22007-10-16 23:31:32 -0700826}
827
David Howellsd84f4f92008-11-14 10:39:23 +1100828int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
829{
830 return security_ops->cred_prepare(new, old, gfp);
831}
832
David Howellsee18d642009-09-02 09:14:21 +0100833void security_transfer_creds(struct cred *new, const struct cred *old)
834{
835 security_ops->cred_transfer(new, old);
836}
837
David Howells3a3b7ce2008-11-14 10:39:28 +1100838int security_kernel_act_as(struct cred *new, u32 secid)
839{
840 return security_ops->kernel_act_as(new, secid);
841}
842
843int security_kernel_create_files_as(struct cred *new, struct inode *inode)
844{
845 return security_ops->kernel_create_files_as(new, inode);
846}
847
Kees Cook13752fe2014-02-25 10:28:04 -0800848int security_kernel_fw_from_file(struct file *file, char *buf, size_t size)
849{
850 return security_ops->kernel_fw_from_file(file, buf, size);
851}
852EXPORT_SYMBOL_GPL(security_kernel_fw_from_file);
853
Eric Parisdd8dbf22009-11-03 16:35:32 +1100854int security_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400855{
Eric Parisdd8dbf22009-11-03 16:35:32 +1100856 return security_ops->kernel_module_request(kmod_name);
Eric Paris91884992009-08-13 09:44:57 -0400857}
858
Kees Cook2e72d512012-10-16 07:32:07 +1030859int security_kernel_module_from_file(struct file *file)
860{
Mimi Zoharfdf90722012-10-16 12:40:08 +1030861 int ret;
862
863 ret = security_ops->kernel_module_from_file(file);
864 if (ret)
865 return ret;
866 return ima_module_check(file);
Kees Cook2e72d512012-10-16 07:32:07 +1030867}
868
David Howellsd84f4f92008-11-14 10:39:23 +1100869int security_task_fix_setuid(struct cred *new, const struct cred *old,
870 int flags)
James Morris20510f22007-10-16 23:31:32 -0700871{
David Howellsd84f4f92008-11-14 10:39:23 +1100872 return security_ops->task_fix_setuid(new, old, flags);
James Morris20510f22007-10-16 23:31:32 -0700873}
874
James Morris20510f22007-10-16 23:31:32 -0700875int security_task_setpgid(struct task_struct *p, pid_t pgid)
876{
877 return security_ops->task_setpgid(p, pgid);
878}
879
880int security_task_getpgid(struct task_struct *p)
881{
882 return security_ops->task_getpgid(p);
883}
884
885int security_task_getsid(struct task_struct *p)
886{
887 return security_ops->task_getsid(p);
888}
889
890void security_task_getsecid(struct task_struct *p, u32 *secid)
891{
892 security_ops->task_getsecid(p, secid);
893}
894EXPORT_SYMBOL(security_task_getsecid);
895
James Morris20510f22007-10-16 23:31:32 -0700896int security_task_setnice(struct task_struct *p, int nice)
897{
898 return security_ops->task_setnice(p, nice);
899}
900
901int security_task_setioprio(struct task_struct *p, int ioprio)
902{
903 return security_ops->task_setioprio(p, ioprio);
904}
905
906int security_task_getioprio(struct task_struct *p)
907{
908 return security_ops->task_getioprio(p);
909}
910
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200911int security_task_setrlimit(struct task_struct *p, unsigned int resource,
912 struct rlimit *new_rlim)
James Morris20510f22007-10-16 23:31:32 -0700913{
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200914 return security_ops->task_setrlimit(p, resource, new_rlim);
James Morris20510f22007-10-16 23:31:32 -0700915}
916
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +0900917int security_task_setscheduler(struct task_struct *p)
James Morris20510f22007-10-16 23:31:32 -0700918{
KOSAKI Motohirob0ae1982010-10-15 04:21:18 +0900919 return security_ops->task_setscheduler(p);
James Morris20510f22007-10-16 23:31:32 -0700920}
921
922int security_task_getscheduler(struct task_struct *p)
923{
924 return security_ops->task_getscheduler(p);
925}
926
927int security_task_movememory(struct task_struct *p)
928{
929 return security_ops->task_movememory(p);
930}
931
932int security_task_kill(struct task_struct *p, struct siginfo *info,
933 int sig, u32 secid)
934{
935 return security_ops->task_kill(p, info, sig, secid);
936}
937
938int security_task_wait(struct task_struct *p)
939{
940 return security_ops->task_wait(p);
941}
942
943int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
David Howellsd84f4f92008-11-14 10:39:23 +1100944 unsigned long arg4, unsigned long arg5)
James Morris20510f22007-10-16 23:31:32 -0700945{
Kees Cookc6993e42012-09-04 13:32:13 -0700946#ifdef CONFIG_SECURITY_YAMA_STACKED
947 int rc;
948 rc = yama_task_prctl(option, arg2, arg3, arg4, arg5);
949 if (rc != -ENOSYS)
950 return rc;
951#endif
David Howellsd84f4f92008-11-14 10:39:23 +1100952 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
James Morris20510f22007-10-16 23:31:32 -0700953}
954
955void security_task_to_inode(struct task_struct *p, struct inode *inode)
956{
957 security_ops->task_to_inode(p, inode);
958}
959
960int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
961{
962 return security_ops->ipc_permission(ipcp, flag);
963}
964
Ahmed S. Darwish8a076192008-03-01 21:51:09 +0200965void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
966{
967 security_ops->ipc_getsecid(ipcp, secid);
968}
969
James Morris20510f22007-10-16 23:31:32 -0700970int security_msg_msg_alloc(struct msg_msg *msg)
971{
972 return security_ops->msg_msg_alloc_security(msg);
973}
974
975void security_msg_msg_free(struct msg_msg *msg)
976{
977 security_ops->msg_msg_free_security(msg);
978}
979
980int security_msg_queue_alloc(struct msg_queue *msq)
981{
982 return security_ops->msg_queue_alloc_security(msq);
983}
984
985void security_msg_queue_free(struct msg_queue *msq)
986{
987 security_ops->msg_queue_free_security(msq);
988}
989
990int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
991{
992 return security_ops->msg_queue_associate(msq, msqflg);
993}
994
995int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
996{
997 return security_ops->msg_queue_msgctl(msq, cmd);
998}
999
1000int security_msg_queue_msgsnd(struct msg_queue *msq,
1001 struct msg_msg *msg, int msqflg)
1002{
1003 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
1004}
1005
1006int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1007 struct task_struct *target, long type, int mode)
1008{
1009 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
1010}
1011
1012int security_shm_alloc(struct shmid_kernel *shp)
1013{
1014 return security_ops->shm_alloc_security(shp);
1015}
1016
1017void security_shm_free(struct shmid_kernel *shp)
1018{
1019 security_ops->shm_free_security(shp);
1020}
1021
1022int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1023{
1024 return security_ops->shm_associate(shp, shmflg);
1025}
1026
1027int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1028{
1029 return security_ops->shm_shmctl(shp, cmd);
1030}
1031
1032int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1033{
1034 return security_ops->shm_shmat(shp, shmaddr, shmflg);
1035}
1036
1037int security_sem_alloc(struct sem_array *sma)
1038{
1039 return security_ops->sem_alloc_security(sma);
1040}
1041
1042void security_sem_free(struct sem_array *sma)
1043{
1044 security_ops->sem_free_security(sma);
1045}
1046
1047int security_sem_associate(struct sem_array *sma, int semflg)
1048{
1049 return security_ops->sem_associate(sma, semflg);
1050}
1051
1052int security_sem_semctl(struct sem_array *sma, int cmd)
1053{
1054 return security_ops->sem_semctl(sma, cmd);
1055}
1056
1057int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1058 unsigned nsops, int alter)
1059{
1060 return security_ops->sem_semop(sma, sops, nsops, alter);
1061}
1062
1063void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1064{
1065 if (unlikely(inode && IS_PRIVATE(inode)))
1066 return;
1067 security_ops->d_instantiate(dentry, inode);
1068}
1069EXPORT_SYMBOL(security_d_instantiate);
1070
1071int security_getprocattr(struct task_struct *p, char *name, char **value)
1072{
1073 return security_ops->getprocattr(p, name, value);
1074}
1075
1076int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1077{
1078 return security_ops->setprocattr(p, name, value, size);
1079}
1080
1081int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1082{
1083 return security_ops->netlink_send(sk, skb);
1084}
James Morris20510f22007-10-16 23:31:32 -07001085
David Quigley746df9b2013-05-22 12:50:35 -04001086int security_ismaclabel(const char *name)
1087{
1088 return security_ops->ismaclabel(name);
1089}
1090EXPORT_SYMBOL(security_ismaclabel);
1091
James Morris20510f22007-10-16 23:31:32 -07001092int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1093{
1094 return security_ops->secid_to_secctx(secid, secdata, seclen);
1095}
1096EXPORT_SYMBOL(security_secid_to_secctx);
1097
David Howells7bf570d2008-04-29 20:52:51 +01001098int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
David Howells63cb3442008-01-15 23:47:35 +00001099{
1100 return security_ops->secctx_to_secid(secdata, seclen, secid);
1101}
1102EXPORT_SYMBOL(security_secctx_to_secid);
1103
James Morris20510f22007-10-16 23:31:32 -07001104void security_release_secctx(char *secdata, u32 seclen)
1105{
James Morris65fc7662008-06-12 01:00:10 +10001106 security_ops->release_secctx(secdata, seclen);
James Morris20510f22007-10-16 23:31:32 -07001107}
1108EXPORT_SYMBOL(security_release_secctx);
1109
David P. Quigley1ee65e32009-09-03 14:25:57 -04001110int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1111{
1112 return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
1113}
1114EXPORT_SYMBOL(security_inode_notifysecctx);
1115
1116int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1117{
1118 return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1119}
1120EXPORT_SYMBOL(security_inode_setsecctx);
1121
1122int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1123{
1124 return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1125}
1126EXPORT_SYMBOL(security_inode_getsecctx);
1127
James Morris20510f22007-10-16 23:31:32 -07001128#ifdef CONFIG_SECURITY_NETWORK
1129
David S. Miller3610cda2011-01-05 15:38:53 -08001130int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
James Morris20510f22007-10-16 23:31:32 -07001131{
1132 return security_ops->unix_stream_connect(sock, other, newsk);
1133}
1134EXPORT_SYMBOL(security_unix_stream_connect);
1135
1136int security_unix_may_send(struct socket *sock, struct socket *other)
1137{
1138 return security_ops->unix_may_send(sock, other);
1139}
1140EXPORT_SYMBOL(security_unix_may_send);
1141
1142int security_socket_create(int family, int type, int protocol, int kern)
1143{
1144 return security_ops->socket_create(family, type, protocol, kern);
1145}
1146
1147int security_socket_post_create(struct socket *sock, int family,
1148 int type, int protocol, int kern)
1149{
1150 return security_ops->socket_post_create(sock, family, type,
1151 protocol, kern);
1152}
1153
1154int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1155{
1156 return security_ops->socket_bind(sock, address, addrlen);
1157}
1158
1159int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1160{
1161 return security_ops->socket_connect(sock, address, addrlen);
1162}
1163
1164int security_socket_listen(struct socket *sock, int backlog)
1165{
1166 return security_ops->socket_listen(sock, backlog);
1167}
1168
1169int security_socket_accept(struct socket *sock, struct socket *newsock)
1170{
1171 return security_ops->socket_accept(sock, newsock);
1172}
1173
James Morris20510f22007-10-16 23:31:32 -07001174int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1175{
1176 return security_ops->socket_sendmsg(sock, msg, size);
1177}
1178
1179int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1180 int size, int flags)
1181{
1182 return security_ops->socket_recvmsg(sock, msg, size, flags);
1183}
1184
1185int security_socket_getsockname(struct socket *sock)
1186{
1187 return security_ops->socket_getsockname(sock);
1188}
1189
1190int security_socket_getpeername(struct socket *sock)
1191{
1192 return security_ops->socket_getpeername(sock);
1193}
1194
1195int security_socket_getsockopt(struct socket *sock, int level, int optname)
1196{
1197 return security_ops->socket_getsockopt(sock, level, optname);
1198}
1199
1200int security_socket_setsockopt(struct socket *sock, int level, int optname)
1201{
1202 return security_ops->socket_setsockopt(sock, level, optname);
1203}
1204
1205int security_socket_shutdown(struct socket *sock, int how)
1206{
1207 return security_ops->socket_shutdown(sock, how);
1208}
1209
1210int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1211{
1212 return security_ops->socket_sock_rcv_skb(sk, skb);
1213}
1214EXPORT_SYMBOL(security_sock_rcv_skb);
1215
1216int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1217 int __user *optlen, unsigned len)
1218{
1219 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1220}
1221
1222int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1223{
1224 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1225}
1226EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1227
1228int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1229{
1230 return security_ops->sk_alloc_security(sk, family, priority);
1231}
1232
1233void security_sk_free(struct sock *sk)
1234{
James Morris65fc7662008-06-12 01:00:10 +10001235 security_ops->sk_free_security(sk);
James Morris20510f22007-10-16 23:31:32 -07001236}
1237
1238void security_sk_clone(const struct sock *sk, struct sock *newsk)
1239{
James Morris65fc7662008-06-12 01:00:10 +10001240 security_ops->sk_clone_security(sk, newsk);
James Morris20510f22007-10-16 23:31:32 -07001241}
Paul Moore6230c9b2011-10-07 09:40:59 +00001242EXPORT_SYMBOL(security_sk_clone);
James Morris20510f22007-10-16 23:31:32 -07001243
1244void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1245{
David S. Miller1d28f422011-03-12 00:29:39 -05001246 security_ops->sk_getsecid(sk, &fl->flowi_secid);
James Morris20510f22007-10-16 23:31:32 -07001247}
1248EXPORT_SYMBOL(security_sk_classify_flow);
1249
1250void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1251{
1252 security_ops->req_classify_flow(req, fl);
1253}
1254EXPORT_SYMBOL(security_req_classify_flow);
1255
1256void security_sock_graft(struct sock *sk, struct socket *parent)
1257{
1258 security_ops->sock_graft(sk, parent);
1259}
1260EXPORT_SYMBOL(security_sock_graft);
1261
1262int security_inet_conn_request(struct sock *sk,
1263 struct sk_buff *skb, struct request_sock *req)
1264{
1265 return security_ops->inet_conn_request(sk, skb, req);
1266}
1267EXPORT_SYMBOL(security_inet_conn_request);
1268
1269void security_inet_csk_clone(struct sock *newsk,
1270 const struct request_sock *req)
1271{
1272 security_ops->inet_csk_clone(newsk, req);
1273}
1274
1275void security_inet_conn_established(struct sock *sk,
1276 struct sk_buff *skb)
1277{
1278 security_ops->inet_conn_established(sk, skb);
1279}
1280
Eric Paris2606fd12010-10-13 16:24:41 -04001281int security_secmark_relabel_packet(u32 secid)
1282{
1283 return security_ops->secmark_relabel_packet(secid);
1284}
1285EXPORT_SYMBOL(security_secmark_relabel_packet);
1286
1287void security_secmark_refcount_inc(void)
1288{
1289 security_ops->secmark_refcount_inc();
1290}
1291EXPORT_SYMBOL(security_secmark_refcount_inc);
1292
1293void security_secmark_refcount_dec(void)
1294{
1295 security_ops->secmark_refcount_dec();
1296}
1297EXPORT_SYMBOL(security_secmark_refcount_dec);
1298
Paul Moore5dbbaf22013-01-14 07:12:19 +00001299int security_tun_dev_alloc_security(void **security)
1300{
1301 return security_ops->tun_dev_alloc_security(security);
1302}
1303EXPORT_SYMBOL(security_tun_dev_alloc_security);
1304
1305void security_tun_dev_free_security(void *security)
1306{
1307 security_ops->tun_dev_free_security(security);
1308}
1309EXPORT_SYMBOL(security_tun_dev_free_security);
1310
Paul Moore2b980db2009-08-28 18:12:43 -04001311int security_tun_dev_create(void)
1312{
1313 return security_ops->tun_dev_create();
1314}
1315EXPORT_SYMBOL(security_tun_dev_create);
1316
Paul Moore5dbbaf22013-01-14 07:12:19 +00001317int security_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -04001318{
Paul Moore5dbbaf22013-01-14 07:12:19 +00001319 return security_ops->tun_dev_attach_queue(security);
Paul Moore2b980db2009-08-28 18:12:43 -04001320}
Paul Moore5dbbaf22013-01-14 07:12:19 +00001321EXPORT_SYMBOL(security_tun_dev_attach_queue);
Paul Moore2b980db2009-08-28 18:12:43 -04001322
Paul Moore5dbbaf22013-01-14 07:12:19 +00001323int security_tun_dev_attach(struct sock *sk, void *security)
Paul Moore2b980db2009-08-28 18:12:43 -04001324{
Paul Moore5dbbaf22013-01-14 07:12:19 +00001325 return security_ops->tun_dev_attach(sk, security);
Paul Moore2b980db2009-08-28 18:12:43 -04001326}
1327EXPORT_SYMBOL(security_tun_dev_attach);
1328
Paul Moore5dbbaf22013-01-14 07:12:19 +00001329int security_tun_dev_open(void *security)
1330{
1331 return security_ops->tun_dev_open(security);
1332}
1333EXPORT_SYMBOL(security_tun_dev_open);
1334
Eric Dumazetca10b9e2013-04-08 17:58:11 +00001335void security_skb_owned_by(struct sk_buff *skb, struct sock *sk)
1336{
1337 security_ops->skb_owned_by(skb, sk);
1338}
1339
James Morris20510f22007-10-16 23:31:32 -07001340#endif /* CONFIG_SECURITY_NETWORK */
1341
1342#ifdef CONFIG_SECURITY_NETWORK_XFRM
1343
Nikolay Aleksandrov52a4c642014-03-07 12:44:19 +01001344int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1345 struct xfrm_user_sec_ctx *sec_ctx,
1346 gfp_t gfp)
James Morris20510f22007-10-16 23:31:32 -07001347{
Nikolay Aleksandrov52a4c642014-03-07 12:44:19 +01001348 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx, gfp);
James Morris20510f22007-10-16 23:31:32 -07001349}
1350EXPORT_SYMBOL(security_xfrm_policy_alloc);
1351
Paul Moore03e1ad72008-04-12 19:07:52 -07001352int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1353 struct xfrm_sec_ctx **new_ctxp)
James Morris20510f22007-10-16 23:31:32 -07001354{
Paul Moore03e1ad72008-04-12 19:07:52 -07001355 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
James Morris20510f22007-10-16 23:31:32 -07001356}
1357
Paul Moore03e1ad72008-04-12 19:07:52 -07001358void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
James Morris20510f22007-10-16 23:31:32 -07001359{
Paul Moore03e1ad72008-04-12 19:07:52 -07001360 security_ops->xfrm_policy_free_security(ctx);
James Morris20510f22007-10-16 23:31:32 -07001361}
1362EXPORT_SYMBOL(security_xfrm_policy_free);
1363
Paul Moore03e1ad72008-04-12 19:07:52 -07001364int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
James Morris20510f22007-10-16 23:31:32 -07001365{
Paul Moore03e1ad72008-04-12 19:07:52 -07001366 return security_ops->xfrm_policy_delete_security(ctx);
James Morris20510f22007-10-16 23:31:32 -07001367}
1368
Paul Moore2e5aa862013-07-23 17:38:38 -04001369int security_xfrm_state_alloc(struct xfrm_state *x,
1370 struct xfrm_user_sec_ctx *sec_ctx)
James Morris20510f22007-10-16 23:31:32 -07001371{
Paul Moore2e5aa862013-07-23 17:38:38 -04001372 return security_ops->xfrm_state_alloc(x, sec_ctx);
James Morris20510f22007-10-16 23:31:32 -07001373}
1374EXPORT_SYMBOL(security_xfrm_state_alloc);
1375
1376int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1377 struct xfrm_sec_ctx *polsec, u32 secid)
1378{
Paul Moore2e5aa862013-07-23 17:38:38 -04001379 return security_ops->xfrm_state_alloc_acquire(x, polsec, secid);
James Morris20510f22007-10-16 23:31:32 -07001380}
1381
1382int security_xfrm_state_delete(struct xfrm_state *x)
1383{
1384 return security_ops->xfrm_state_delete_security(x);
1385}
1386EXPORT_SYMBOL(security_xfrm_state_delete);
1387
1388void security_xfrm_state_free(struct xfrm_state *x)
1389{
1390 security_ops->xfrm_state_free_security(x);
1391}
1392
Paul Moore03e1ad72008-04-12 19:07:52 -07001393int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
James Morris20510f22007-10-16 23:31:32 -07001394{
Paul Moore03e1ad72008-04-12 19:07:52 -07001395 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
James Morris20510f22007-10-16 23:31:32 -07001396}
1397
1398int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
David S. Millere33f7702011-02-22 18:13:15 -08001399 struct xfrm_policy *xp,
1400 const struct flowi *fl)
James Morris20510f22007-10-16 23:31:32 -07001401{
1402 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1403}
1404
1405int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1406{
1407 return security_ops->xfrm_decode_session(skb, secid, 1);
1408}
1409
1410void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1411{
David S. Miller1d28f422011-03-12 00:29:39 -05001412 int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
James Morris20510f22007-10-16 23:31:32 -07001413
1414 BUG_ON(rc);
1415}
1416EXPORT_SYMBOL(security_skb_classify_flow);
1417
1418#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1419
1420#ifdef CONFIG_KEYS
1421
David Howellsd84f4f92008-11-14 10:39:23 +11001422int security_key_alloc(struct key *key, const struct cred *cred,
1423 unsigned long flags)
James Morris20510f22007-10-16 23:31:32 -07001424{
David Howellsd84f4f92008-11-14 10:39:23 +11001425 return security_ops->key_alloc(key, cred, flags);
James Morris20510f22007-10-16 23:31:32 -07001426}
1427
1428void security_key_free(struct key *key)
1429{
1430 security_ops->key_free(key);
1431}
1432
1433int security_key_permission(key_ref_t key_ref,
David Howellsf5895942014-03-14 17:44:49 +00001434 const struct cred *cred, unsigned perm)
James Morris20510f22007-10-16 23:31:32 -07001435{
David Howellsd84f4f92008-11-14 10:39:23 +11001436 return security_ops->key_permission(key_ref, cred, perm);
James Morris20510f22007-10-16 23:31:32 -07001437}
1438
David Howells70a5bb72008-04-29 01:01:26 -07001439int security_key_getsecurity(struct key *key, char **_buffer)
1440{
1441 return security_ops->key_getsecurity(key, _buffer);
1442}
1443
James Morris20510f22007-10-16 23:31:32 -07001444#endif /* CONFIG_KEYS */
Ahmed S. Darwish03d37d22008-03-01 22:00:05 +02001445
1446#ifdef CONFIG_AUDIT
1447
1448int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1449{
1450 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1451}
1452
1453int security_audit_rule_known(struct audit_krule *krule)
1454{
1455 return security_ops->audit_rule_known(krule);
1456}
1457
1458void security_audit_rule_free(void *lsmrule)
1459{
1460 security_ops->audit_rule_free(lsmrule);
1461}
1462
1463int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1464 struct audit_context *actx)
1465{
1466 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1467}
1468
1469#endif /* CONFIG_AUDIT */