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[mirror_ubuntu-bionic-kernel.git] / security / security.c
CommitLineData
1da177e4
LT
1/*
2 * Security plug functions
3 *
4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
c59ede7b 14#include <linux/capability.h>
d47be3df 15#include <linux/dcache.h>
1da177e4
LT
16#include <linux/module.h>
17#include <linux/init.h>
18#include <linux/kernel.h>
3c4ed7bd 19#include <linux/lsm_hooks.h>
f381c272 20#include <linux/integrity.h>
6c21a7fb 21#include <linux/ima.h>
3e1be52d 22#include <linux/evm.h>
40401530 23#include <linux/fsnotify.h>
8b3ec681
AV
24#include <linux/mman.h>
25#include <linux/mount.h>
26#include <linux/personality.h>
75331a59 27#include <linux/backing-dev.h>
40401530 28#include <net/flow.h>
1da177e4 29
823eb1cc 30#define MAX_LSM_EVM_XATTR 2
1da177e4 31
b1d9e6b0
CS
32/* Maximum number of letters for an LSM name string */
33#define SECURITY_NAME_MAX 10
34
3dfc9b02 35struct security_hook_heads security_hook_heads __lsm_ro_after_init;
d69dece5 36char *lsm_names;
076c54c5 37/* Boot-time LSM user choice */
6e65f92f
JJ
38static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
39 CONFIG_DEFAULT_SECURITY;
1da177e4 40
1da177e4
LT
41static void __init do_security_initcalls(void)
42{
43 initcall_t *call;
44 call = __security_initcall_start;
45 while (call < __security_initcall_end) {
46 (*call) ();
47 call++;
48 }
49}
50
51/**
52 * security_init - initializes the security framework
53 *
54 * This should be called early in the kernel initialization sequence.
55 */
56int __init security_init(void)
57{
3dfc9b02
TH
58 int i;
59 struct list_head *list = (struct list_head *) &security_hook_heads;
60
61 for (i = 0; i < sizeof(security_hook_heads) / sizeof(struct list_head);
62 i++)
63 INIT_LIST_HEAD(&list[i]);
b1d9e6b0 64 pr_info("Security Framework initialized\n");
1da177e4 65
b1d9e6b0 66 /*
730daa16 67 * Load minor LSMs, with the capability module always first.
b1d9e6b0
CS
68 */
69 capability_add_hooks();
b1d9e6b0 70 yama_add_hooks();
9b091556 71 loadpin_add_hooks();
730daa16 72
b1d9e6b0 73 /*
730daa16 74 * Load all the remaining security modules.
b1d9e6b0 75 */
1da177e4
LT
76 do_security_initcalls();
77
78 return 0;
79}
80
076c54c5
AD
81/* 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
d69dece5
CS
89static int lsm_append(char *new, char **result)
90{
91 char *cp;
92
93 if (*result == NULL) {
94 *result = kstrdup(new, GFP_KERNEL);
95 } else {
96 cp = kasprintf(GFP_KERNEL, "%s,%s", *result, new);
97 if (cp == NULL)
98 return -ENOMEM;
99 kfree(*result);
100 *result = cp;
101 }
102 return 0;
103}
104
076c54c5
AD
105/**
106 * security_module_enable - Load given security module on boot ?
b1d9e6b0 107 * @module: the name of the module
076c54c5
AD
108 *
109 * Each LSM must pass this method before registering its own operations
110 * to avoid security registration races. This method may also be used
7cea51be 111 * to check if your LSM is currently loaded during kernel initialization.
076c54c5 112 *
0e056eb5
MCC
113 * Returns:
114 *
115 * true if:
116 *
117 * - The passed LSM is the one chosen by user at boot time,
118 * - or the passed LSM is configured as the default and the user did not
119 * choose an alternate LSM at boot time.
120 *
076c54c5
AD
121 * Otherwise, return false.
122 */
b1d9e6b0 123int __init security_module_enable(const char *module)
076c54c5 124{
b1d9e6b0 125 return !strcmp(module, chosen_lsm);
076c54c5
AD
126}
127
d69dece5
CS
128/**
129 * security_add_hooks - Add a modules hooks to the hook lists.
130 * @hooks: the hooks to add
131 * @count: the number of hooks to add
132 * @lsm: the name of the security module
133 *
134 * Each LSM has to register its hooks with the infrastructure.
135 */
136void __init security_add_hooks(struct security_hook_list *hooks, int count,
137 char *lsm)
138{
139 int i;
140
141 for (i = 0; i < count; i++) {
142 hooks[i].lsm = lsm;
143 list_add_tail_rcu(&hooks[i].list, hooks[i].head);
144 }
145 if (lsm_append(lsm, &lsm_names) < 0)
146 panic("%s - Cannot get early memory.\n", __func__);
147}
148
f25fce3e 149/*
b1d9e6b0 150 * Hook list operation macros.
1da177e4 151 *
f25fce3e
CS
152 * call_void_hook:
153 * This is a hook that does not return a value.
1da177e4 154 *
f25fce3e
CS
155 * call_int_hook:
156 * This is a hook that returns a value.
1da177e4 157 */
1da177e4 158
b1d9e6b0
CS
159#define call_void_hook(FUNC, ...) \
160 do { \
161 struct security_hook_list *P; \
162 \
163 list_for_each_entry(P, &security_hook_heads.FUNC, list) \
164 P->hook.FUNC(__VA_ARGS__); \
165 } while (0)
166
167#define call_int_hook(FUNC, IRC, ...) ({ \
168 int RC = IRC; \
169 do { \
170 struct security_hook_list *P; \
171 \
172 list_for_each_entry(P, &security_hook_heads.FUNC, list) { \
173 RC = P->hook.FUNC(__VA_ARGS__); \
174 if (RC != 0) \
175 break; \
176 } \
177 } while (0); \
178 RC; \
179})
1da177e4 180
20510f2f
JM
181/* Security operations */
182
79af7307
SS
183int security_binder_set_context_mgr(struct task_struct *mgr)
184{
f25fce3e 185 return call_int_hook(binder_set_context_mgr, 0, mgr);
79af7307
SS
186}
187
188int security_binder_transaction(struct task_struct *from,
189 struct task_struct *to)
190{
f25fce3e 191 return call_int_hook(binder_transaction, 0, from, to);
79af7307
SS
192}
193
194int security_binder_transfer_binder(struct task_struct *from,
195 struct task_struct *to)
196{
f25fce3e 197 return call_int_hook(binder_transfer_binder, 0, from, to);
79af7307
SS
198}
199
200int security_binder_transfer_file(struct task_struct *from,
201 struct task_struct *to, struct file *file)
202{
f25fce3e 203 return call_int_hook(binder_transfer_file, 0, from, to, file);
79af7307
SS
204}
205
9e48858f 206int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
20510f2f 207{
f25fce3e 208 return call_int_hook(ptrace_access_check, 0, child, mode);
5cd9c58f
DH
209}
210
211int security_ptrace_traceme(struct task_struct *parent)
212{
f25fce3e 213 return call_int_hook(ptrace_traceme, 0, parent);
20510f2f
JM
214}
215
216int security_capget(struct task_struct *target,
217 kernel_cap_t *effective,
218 kernel_cap_t *inheritable,
219 kernel_cap_t *permitted)
220{
f25fce3e
CS
221 return call_int_hook(capget, 0, target,
222 effective, inheritable, permitted);
20510f2f
JM
223}
224
d84f4f99
DH
225int security_capset(struct cred *new, const struct cred *old,
226 const kernel_cap_t *effective,
227 const kernel_cap_t *inheritable,
228 const kernel_cap_t *permitted)
20510f2f 229{
f25fce3e
CS
230 return call_int_hook(capset, 0, new, old,
231 effective, inheritable, permitted);
20510f2f
JM
232}
233
b7e724d3 234int security_capable(const struct cred *cred, struct user_namespace *ns,
3486740a 235 int cap)
20510f2f 236{
f25fce3e 237 return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT);
06112163
EP
238}
239
c7eba4a9
EP
240int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
241 int cap)
06112163 242{
f25fce3e 243 return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT);
20510f2f
JM
244}
245
20510f2f
JM
246int security_quotactl(int cmds, int type, int id, struct super_block *sb)
247{
f25fce3e 248 return call_int_hook(quotactl, 0, cmds, type, id, sb);
20510f2f
JM
249}
250
251int security_quota_on(struct dentry *dentry)
252{
f25fce3e 253 return call_int_hook(quota_on, 0, dentry);
20510f2f
JM
254}
255
12b3052c 256int security_syslog(int type)
20510f2f 257{
f25fce3e 258 return call_int_hook(syslog, 0, type);
20510f2f
JM
259}
260
457db29b 261int security_settime64(const struct timespec64 *ts, const struct timezone *tz)
20510f2f 262{
f25fce3e 263 return call_int_hook(settime, 0, ts, tz);
20510f2f
JM
264}
265
20510f2f
JM
266int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
267{
b1d9e6b0
CS
268 struct security_hook_list *hp;
269 int cap_sys_admin = 1;
270 int rc;
271
272 /*
273 * The module will respond with a positive value if
274 * it thinks the __vm_enough_memory() call should be
275 * made with the cap_sys_admin set. If all of the modules
276 * agree that it should be set it will. If any module
277 * thinks it should not be set it won't.
278 */
279 list_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) {
280 rc = hp->hook.vm_enough_memory(mm, pages);
281 if (rc <= 0) {
282 cap_sys_admin = 0;
283 break;
284 }
285 }
286 return __vm_enough_memory(mm, pages, cap_sys_admin);
20510f2f
JM
287}
288
a6f76f23 289int security_bprm_set_creds(struct linux_binprm *bprm)
20510f2f 290{
f25fce3e 291 return call_int_hook(bprm_set_creds, 0, bprm);
20510f2f
JM
292}
293
a6f76f23 294int security_bprm_check(struct linux_binprm *bprm)
20510f2f 295{
6c21a7fb
MZ
296 int ret;
297
f25fce3e 298 ret = call_int_hook(bprm_check_security, 0, bprm);
6c21a7fb
MZ
299 if (ret)
300 return ret;
301 return ima_bprm_check(bprm);
20510f2f
JM
302}
303
a6f76f23 304void security_bprm_committing_creds(struct linux_binprm *bprm)
20510f2f 305{
f25fce3e 306 call_void_hook(bprm_committing_creds, bprm);
20510f2f
JM
307}
308
a6f76f23 309void security_bprm_committed_creds(struct linux_binprm *bprm)
20510f2f 310{
f25fce3e 311 call_void_hook(bprm_committed_creds, bprm);
20510f2f
JM
312}
313
314int security_bprm_secureexec(struct linux_binprm *bprm)
315{
f25fce3e 316 return call_int_hook(bprm_secureexec, 0, bprm);
20510f2f
JM
317}
318
319int security_sb_alloc(struct super_block *sb)
320{
f25fce3e 321 return call_int_hook(sb_alloc_security, 0, sb);
20510f2f
JM
322}
323
324void security_sb_free(struct super_block *sb)
325{
f25fce3e 326 call_void_hook(sb_free_security, sb);
20510f2f
JM
327}
328
e0007529 329int security_sb_copy_data(char *orig, char *copy)
20510f2f 330{
f25fce3e 331 return call_int_hook(sb_copy_data, 0, orig, copy);
20510f2f 332}
e0007529 333EXPORT_SYMBOL(security_sb_copy_data);
20510f2f 334
ff36fe2c
EP
335int security_sb_remount(struct super_block *sb, void *data)
336{
f25fce3e 337 return call_int_hook(sb_remount, 0, sb, data);
ff36fe2c
EP
338}
339
12204e24 340int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
20510f2f 341{
f25fce3e 342 return call_int_hook(sb_kern_mount, 0, sb, flags, data);
20510f2f
JM
343}
344
2069f457
EP
345int security_sb_show_options(struct seq_file *m, struct super_block *sb)
346{
f25fce3e 347 return call_int_hook(sb_show_options, 0, m, sb);
2069f457
EP
348}
349
20510f2f
JM
350int security_sb_statfs(struct dentry *dentry)
351{
f25fce3e 352 return call_int_hook(sb_statfs, 0, dentry);
20510f2f
JM
353}
354
8a04c43b 355int security_sb_mount(const char *dev_name, const struct path *path,
808d4e3c 356 const char *type, unsigned long flags, void *data)
20510f2f 357{
f25fce3e 358 return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data);
20510f2f
JM
359}
360
20510f2f
JM
361int security_sb_umount(struct vfsmount *mnt, int flags)
362{
f25fce3e 363 return call_int_hook(sb_umount, 0, mnt, flags);
20510f2f
JM
364}
365
3b73b68c 366int security_sb_pivotroot(const struct path *old_path, const struct path *new_path)
20510f2f 367{
f25fce3e 368 return call_int_hook(sb_pivotroot, 0, old_path, new_path);
20510f2f
JM
369}
370
c9180a57 371int security_sb_set_mnt_opts(struct super_block *sb,
649f6e77
DQ
372 struct security_mnt_opts *opts,
373 unsigned long kern_flags,
374 unsigned long *set_kern_flags)
c9180a57 375{
b1d9e6b0
CS
376 return call_int_hook(sb_set_mnt_opts,
377 opts->num_mnt_opts ? -EOPNOTSUPP : 0, sb,
378 opts, kern_flags, set_kern_flags);
c9180a57 379}
e0007529 380EXPORT_SYMBOL(security_sb_set_mnt_opts);
c9180a57 381
094f7b69 382int security_sb_clone_mnt_opts(const struct super_block *oldsb,
c9180a57
EP
383 struct super_block *newsb)
384{
f25fce3e 385 return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb);
c9180a57 386}
e0007529
EP
387EXPORT_SYMBOL(security_sb_clone_mnt_opts);
388
389int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
390{
f25fce3e 391 return call_int_hook(sb_parse_opts_str, 0, options, opts);
e0007529
EP
392}
393EXPORT_SYMBOL(security_sb_parse_opts_str);
c9180a57 394
20510f2f
JM
395int security_inode_alloc(struct inode *inode)
396{
397 inode->i_security = NULL;
f25fce3e 398 return call_int_hook(inode_alloc_security, 0, inode);
20510f2f
JM
399}
400
401void security_inode_free(struct inode *inode)
402{
f381c272 403 integrity_inode_free(inode);
f25fce3e 404 call_void_hook(inode_free_security, inode);
20510f2f
JM
405}
406
d47be3df 407int security_dentry_init_security(struct dentry *dentry, int mode,
4f3ccd76 408 const struct qstr *name, void **ctx,
d47be3df
DQ
409 u32 *ctxlen)
410{
b1d9e6b0
CS
411 return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode,
412 name, ctx, ctxlen);
d47be3df
DQ
413}
414EXPORT_SYMBOL(security_dentry_init_security);
415
2602625b
VG
416int security_dentry_create_files_as(struct dentry *dentry, int mode,
417 struct qstr *name,
418 const struct cred *old, struct cred *new)
419{
420 return call_int_hook(dentry_create_files_as, 0, dentry, mode,
421 name, old, new);
422}
423EXPORT_SYMBOL(security_dentry_create_files_as);
424
20510f2f 425int security_inode_init_security(struct inode *inode, struct inode *dir,
9d8f13ba
MZ
426 const struct qstr *qstr,
427 const initxattrs initxattrs, void *fs_data)
20510f2f 428{
823eb1cc
MZ
429 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
430 struct xattr *lsm_xattr, *evm_xattr, *xattr;
9d8f13ba
MZ
431 int ret;
432
20510f2f 433 if (unlikely(IS_PRIVATE(inode)))
fb88c2b6 434 return 0;
9d8f13ba 435
9d8f13ba 436 if (!initxattrs)
e308fd3b
JB
437 return call_int_hook(inode_init_security, -EOPNOTSUPP, inode,
438 dir, qstr, NULL, NULL, NULL);
9548906b 439 memset(new_xattrs, 0, sizeof(new_xattrs));
9d8f13ba 440 lsm_xattr = new_xattrs;
b1d9e6b0 441 ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr,
9d8f13ba
MZ
442 &lsm_xattr->name,
443 &lsm_xattr->value,
444 &lsm_xattr->value_len);
445 if (ret)
446 goto out;
823eb1cc
MZ
447
448 evm_xattr = lsm_xattr + 1;
449 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
450 if (ret)
451 goto out;
9d8f13ba
MZ
452 ret = initxattrs(inode, new_xattrs, fs_data);
453out:
9548906b 454 for (xattr = new_xattrs; xattr->value != NULL; xattr++)
823eb1cc 455 kfree(xattr->value);
9d8f13ba
MZ
456 return (ret == -EOPNOTSUPP) ? 0 : ret;
457}
458EXPORT_SYMBOL(security_inode_init_security);
459
460int security_old_inode_init_security(struct inode *inode, struct inode *dir,
9548906b 461 const struct qstr *qstr, const char **name,
9d8f13ba 462 void **value, size_t *len)
20510f2f
JM
463{
464 if (unlikely(IS_PRIVATE(inode)))
30e05324 465 return -EOPNOTSUPP;
e308fd3b
JB
466 return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir,
467 qstr, name, value, len);
20510f2f 468}
9d8f13ba 469EXPORT_SYMBOL(security_old_inode_init_security);
20510f2f 470
be6d3e56 471#ifdef CONFIG_SECURITY_PATH
d3607752 472int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
be6d3e56
KT
473 unsigned int dev)
474{
c6f493d6 475 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
be6d3e56 476 return 0;
f25fce3e 477 return call_int_hook(path_mknod, 0, dir, dentry, mode, dev);
be6d3e56
KT
478}
479EXPORT_SYMBOL(security_path_mknod);
480
d3607752 481int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode)
be6d3e56 482{
c6f493d6 483 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
be6d3e56 484 return 0;
f25fce3e 485 return call_int_hook(path_mkdir, 0, dir, dentry, mode);
be6d3e56 486}
82140443 487EXPORT_SYMBOL(security_path_mkdir);
be6d3e56 488
989f74e0 489int security_path_rmdir(const struct path *dir, struct dentry *dentry)
be6d3e56 490{
c6f493d6 491 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
be6d3e56 492 return 0;
f25fce3e 493 return call_int_hook(path_rmdir, 0, dir, dentry);
be6d3e56
KT
494}
495
989f74e0 496int security_path_unlink(const struct path *dir, struct dentry *dentry)
be6d3e56 497{
c6f493d6 498 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
be6d3e56 499 return 0;
f25fce3e 500 return call_int_hook(path_unlink, 0, dir, dentry);
be6d3e56 501}
82140443 502EXPORT_SYMBOL(security_path_unlink);
be6d3e56 503
d3607752 504int security_path_symlink(const struct path *dir, struct dentry *dentry,
be6d3e56
KT
505 const char *old_name)
506{
c6f493d6 507 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
be6d3e56 508 return 0;
f25fce3e 509 return call_int_hook(path_symlink, 0, dir, dentry, old_name);
be6d3e56
KT
510}
511
3ccee46a 512int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
be6d3e56
KT
513 struct dentry *new_dentry)
514{
c6f493d6 515 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
be6d3e56 516 return 0;
f25fce3e 517 return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry);
be6d3e56
KT
518}
519
3ccee46a
AV
520int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
521 const struct path *new_dir, struct dentry *new_dentry,
0b3974eb 522 unsigned int flags)
be6d3e56 523{
c6f493d6
DH
524 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
525 (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
be6d3e56 526 return 0;
da1ce067
MS
527
528 if (flags & RENAME_EXCHANGE) {
f25fce3e
CS
529 int err = call_int_hook(path_rename, 0, new_dir, new_dentry,
530 old_dir, old_dentry);
da1ce067
MS
531 if (err)
532 return err;
533 }
534
f25fce3e
CS
535 return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir,
536 new_dentry);
be6d3e56 537}
82140443 538EXPORT_SYMBOL(security_path_rename);
be6d3e56 539
81f4c506 540int security_path_truncate(const struct path *path)
be6d3e56 541{
c6f493d6 542 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
be6d3e56 543 return 0;
f25fce3e 544 return call_int_hook(path_truncate, 0, path);
be6d3e56 545}
89eda068 546
be01f9f2 547int security_path_chmod(const struct path *path, umode_t mode)
89eda068 548{
c6f493d6 549 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
89eda068 550 return 0;
f25fce3e 551 return call_int_hook(path_chmod, 0, path, mode);
89eda068
TH
552}
553
7fd25dac 554int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
89eda068 555{
c6f493d6 556 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
89eda068 557 return 0;
f25fce3e 558 return call_int_hook(path_chown, 0, path, uid, gid);
89eda068 559}
8b8efb44 560
77b286c0 561int security_path_chroot(const struct path *path)
8b8efb44 562{
f25fce3e 563 return call_int_hook(path_chroot, 0, path);
8b8efb44 564}
be6d3e56
KT
565#endif
566
4acdaf27 567int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
20510f2f
JM
568{
569 if (unlikely(IS_PRIVATE(dir)))
570 return 0;
f25fce3e 571 return call_int_hook(inode_create, 0, dir, dentry, mode);
20510f2f 572}
800a9647 573EXPORT_SYMBOL_GPL(security_inode_create);
20510f2f
JM
574
575int security_inode_link(struct dentry *old_dentry, struct inode *dir,
576 struct dentry *new_dentry)
577{
c6f493d6 578 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
20510f2f 579 return 0;
f25fce3e 580 return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry);
20510f2f
JM
581}
582
583int security_inode_unlink(struct inode *dir, struct dentry *dentry)
584{
c6f493d6 585 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
20510f2f 586 return 0;
f25fce3e 587 return call_int_hook(inode_unlink, 0, dir, dentry);
20510f2f
JM
588}
589
590int security_inode_symlink(struct inode *dir, struct dentry *dentry,
591 const char *old_name)
592{
593 if (unlikely(IS_PRIVATE(dir)))
594 return 0;
f25fce3e 595 return call_int_hook(inode_symlink, 0, dir, dentry, old_name);
20510f2f
JM
596}
597
18bb1db3 598int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
20510f2f
JM
599{
600 if (unlikely(IS_PRIVATE(dir)))
601 return 0;
f25fce3e 602 return call_int_hook(inode_mkdir, 0, dir, dentry, mode);
20510f2f 603}
800a9647 604EXPORT_SYMBOL_GPL(security_inode_mkdir);
20510f2f
JM
605
606int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
607{
c6f493d6 608 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
20510f2f 609 return 0;
f25fce3e 610 return call_int_hook(inode_rmdir, 0, dir, dentry);
20510f2f
JM
611}
612
1a67aafb 613int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
20510f2f
JM
614{
615 if (unlikely(IS_PRIVATE(dir)))
616 return 0;
f25fce3e 617 return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev);
20510f2f
JM
618}
619
620int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
0b3974eb
MS
621 struct inode *new_dir, struct dentry *new_dentry,
622 unsigned int flags)
20510f2f 623{
c6f493d6
DH
624 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
625 (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
20510f2f 626 return 0;
da1ce067
MS
627
628 if (flags & RENAME_EXCHANGE) {
f25fce3e 629 int err = call_int_hook(inode_rename, 0, new_dir, new_dentry,
da1ce067
MS
630 old_dir, old_dentry);
631 if (err)
632 return err;
633 }
634
f25fce3e 635 return call_int_hook(inode_rename, 0, old_dir, old_dentry,
20510f2f
JM
636 new_dir, new_dentry);
637}
638
639int security_inode_readlink(struct dentry *dentry)
640{
c6f493d6 641 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
20510f2f 642 return 0;
f25fce3e 643 return call_int_hook(inode_readlink, 0, dentry);
20510f2f
JM
644}
645
bda0be7a
N
646int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
647 bool rcu)
20510f2f 648{
bda0be7a 649 if (unlikely(IS_PRIVATE(inode)))
20510f2f 650 return 0;
e22619a2 651 return call_int_hook(inode_follow_link, 0, dentry, inode, rcu);
20510f2f
JM
652}
653
b77b0646 654int security_inode_permission(struct inode *inode, int mask)
20510f2f
JM
655{
656 if (unlikely(IS_PRIVATE(inode)))
657 return 0;
f25fce3e 658 return call_int_hook(inode_permission, 0, inode, mask);
20510f2f
JM
659}
660
661int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
662{
817b54aa
MZ
663 int ret;
664
c6f493d6 665 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
20510f2f 666 return 0;
f25fce3e 667 ret = call_int_hook(inode_setattr, 0, dentry, attr);
817b54aa
MZ
668 if (ret)
669 return ret;
670 return evm_inode_setattr(dentry, attr);
20510f2f 671}
b1da47e2 672EXPORT_SYMBOL_GPL(security_inode_setattr);
20510f2f 673
3f7036a0 674int security_inode_getattr(const struct path *path)
20510f2f 675{
c6f493d6 676 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
20510f2f 677 return 0;
f25fce3e 678 return call_int_hook(inode_getattr, 0, path);
20510f2f
JM
679}
680
8f0cfa52
DH
681int security_inode_setxattr(struct dentry *dentry, const char *name,
682 const void *value, size_t size, int flags)
20510f2f 683{
3e1be52d
MZ
684 int ret;
685
c6f493d6 686 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
20510f2f 687 return 0;
b1d9e6b0
CS
688 /*
689 * SELinux and Smack integrate the cap call,
690 * so assume that all LSMs supplying this call do so.
691 */
692 ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size,
f25fce3e 693 flags);
b1d9e6b0
CS
694
695 if (ret == 1)
696 ret = cap_inode_setxattr(dentry, name, value, size, flags);
42c63330
MZ
697 if (ret)
698 return ret;
699 ret = ima_inode_setxattr(dentry, name, value, size);
3e1be52d
MZ
700 if (ret)
701 return ret;
702 return evm_inode_setxattr(dentry, name, value, size);
20510f2f
JM
703}
704
8f0cfa52
DH
705void security_inode_post_setxattr(struct dentry *dentry, const char *name,
706 const void *value, size_t size, int flags)
20510f2f 707{
c6f493d6 708 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
20510f2f 709 return;
f25fce3e 710 call_void_hook(inode_post_setxattr, dentry, name, value, size, flags);
3e1be52d 711 evm_inode_post_setxattr(dentry, name, value, size);
20510f2f
JM
712}
713
8f0cfa52 714int security_inode_getxattr(struct dentry *dentry, const char *name)
20510f2f 715{
c6f493d6 716 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
20510f2f 717 return 0;
f25fce3e 718 return call_int_hook(inode_getxattr, 0, dentry, name);
20510f2f
JM
719}
720
721int security_inode_listxattr(struct dentry *dentry)
722{
c6f493d6 723 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
20510f2f 724 return 0;
f25fce3e 725 return call_int_hook(inode_listxattr, 0, dentry);
20510f2f
JM
726}
727
8f0cfa52 728int security_inode_removexattr(struct dentry *dentry, const char *name)
20510f2f 729{
3e1be52d
MZ
730 int ret;
731
c6f493d6 732 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
20510f2f 733 return 0;
b1d9e6b0
CS
734 /*
735 * SELinux and Smack integrate the cap call,
736 * so assume that all LSMs supplying this call do so.
737 */
738 ret = call_int_hook(inode_removexattr, 1, dentry, name);
739 if (ret == 1)
740 ret = cap_inode_removexattr(dentry, name);
42c63330
MZ
741 if (ret)
742 return ret;
743 ret = ima_inode_removexattr(dentry, name);
3e1be52d
MZ
744 if (ret)
745 return ret;
746 return evm_inode_removexattr(dentry, name);
20510f2f
JM
747}
748
b5376771
SH
749int security_inode_need_killpriv(struct dentry *dentry)
750{
f25fce3e 751 return call_int_hook(inode_need_killpriv, 0, dentry);
b5376771
SH
752}
753
754int security_inode_killpriv(struct dentry *dentry)
755{
f25fce3e 756 return call_int_hook(inode_killpriv, 0, dentry);
b5376771
SH
757}
758
ea861dfd 759int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
20510f2f 760{
2885c1e3
CS
761 struct security_hook_list *hp;
762 int rc;
763
20510f2f 764 if (unlikely(IS_PRIVATE(inode)))
8d952504 765 return -EOPNOTSUPP;
2885c1e3
CS
766 /*
767 * Only one module will provide an attribute with a given name.
768 */
769 list_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) {
770 rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc);
771 if (rc != -EOPNOTSUPP)
772 return rc;
773 }
774 return -EOPNOTSUPP;
20510f2f
JM
775}
776
777int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
778{
2885c1e3
CS
779 struct security_hook_list *hp;
780 int rc;
781
20510f2f 782 if (unlikely(IS_PRIVATE(inode)))
8d952504 783 return -EOPNOTSUPP;
2885c1e3
CS
784 /*
785 * Only one module will provide an attribute with a given name.
786 */
787 list_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) {
788 rc = hp->hook.inode_setsecurity(inode, name, value, size,
789 flags);
790 if (rc != -EOPNOTSUPP)
791 return rc;
792 }
793 return -EOPNOTSUPP;
20510f2f
JM
794}
795
796int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
797{
798 if (unlikely(IS_PRIVATE(inode)))
799 return 0;
f25fce3e 800 return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size);
20510f2f 801}
c9bccef6 802EXPORT_SYMBOL(security_inode_listsecurity);
20510f2f 803
d6335d77 804void security_inode_getsecid(struct inode *inode, u32 *secid)
8a076191 805{
f25fce3e 806 call_void_hook(inode_getsecid, inode, secid);
8a076191
AD
807}
808
d8ad8b49
VG
809int security_inode_copy_up(struct dentry *src, struct cred **new)
810{
811 return call_int_hook(inode_copy_up, 0, src, new);
812}
813EXPORT_SYMBOL(security_inode_copy_up);
814
121ab822
VG
815int security_inode_copy_up_xattr(const char *name)
816{
817 return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name);
818}
819EXPORT_SYMBOL(security_inode_copy_up_xattr);
820
20510f2f
JM
821int security_file_permission(struct file *file, int mask)
822{
c4ec54b4
EP
823 int ret;
824
f25fce3e 825 ret = call_int_hook(file_permission, 0, file, mask);
c4ec54b4
EP
826 if (ret)
827 return ret;
828
829 return fsnotify_perm(file, mask);
20510f2f
JM
830}
831
832int security_file_alloc(struct file *file)
833{
f25fce3e 834 return call_int_hook(file_alloc_security, 0, file);
20510f2f
JM
835}
836
837void security_file_free(struct file *file)
838{
f25fce3e 839 call_void_hook(file_free_security, file);
20510f2f
JM
840}
841
842int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
843{
f25fce3e 844 return call_int_hook(file_ioctl, 0, file, cmd, arg);
20510f2f
JM
845}
846
98de59bf 847static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
20510f2f 848{
8b3ec681 849 /*
98de59bf
AV
850 * Does we have PROT_READ and does the application expect
851 * it to imply PROT_EXEC? If not, nothing to talk about...
8b3ec681 852 */
98de59bf
AV
853 if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
854 return prot;
8b3ec681 855 if (!(current->personality & READ_IMPLIES_EXEC))
98de59bf
AV
856 return prot;
857 /*
858 * if that's an anonymous mapping, let it.
859 */
860 if (!file)
861 return prot | PROT_EXEC;
862 /*
863 * ditto if it's not on noexec mount, except that on !MMU we need
b4caecd4 864 * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case
98de59bf 865 */
90f8572b 866 if (!path_noexec(&file->f_path)) {
8b3ec681 867#ifndef CONFIG_MMU
b4caecd4
CH
868 if (file->f_op->mmap_capabilities) {
869 unsigned caps = file->f_op->mmap_capabilities(file);
870 if (!(caps & NOMMU_MAP_EXEC))
871 return prot;
872 }
8b3ec681 873#endif
98de59bf 874 return prot | PROT_EXEC;
8b3ec681 875 }
98de59bf
AV
876 /* anything on noexec mount won't get PROT_EXEC */
877 return prot;
878}
879
880int security_mmap_file(struct file *file, unsigned long prot,
881 unsigned long flags)
882{
883 int ret;
f25fce3e 884 ret = call_int_hook(mmap_file, 0, file, prot,
98de59bf 885 mmap_prot(file, prot), flags);
6c21a7fb
MZ
886 if (ret)
887 return ret;
888 return ima_file_mmap(file, prot);
20510f2f
JM
889}
890
e5467859
AV
891int security_mmap_addr(unsigned long addr)
892{
f25fce3e 893 return call_int_hook(mmap_addr, 0, addr);
e5467859
AV
894}
895
20510f2f
JM
896int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
897 unsigned long prot)
898{
f25fce3e 899 return call_int_hook(file_mprotect, 0, vma, reqprot, prot);
20510f2f
JM
900}
901
902int security_file_lock(struct file *file, unsigned int cmd)
903{
f25fce3e 904 return call_int_hook(file_lock, 0, file, cmd);
20510f2f
JM
905}
906
907int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
908{
f25fce3e 909 return call_int_hook(file_fcntl, 0, file, cmd, arg);
20510f2f
JM
910}
911
e0b93edd 912void security_file_set_fowner(struct file *file)
20510f2f 913{
f25fce3e 914 call_void_hook(file_set_fowner, file);
20510f2f
JM
915}
916
917int security_file_send_sigiotask(struct task_struct *tsk,
918 struct fown_struct *fown, int sig)
919{
f25fce3e 920 return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig);
20510f2f
JM
921}
922
923int security_file_receive(struct file *file)
924{
f25fce3e 925 return call_int_hook(file_receive, 0, file);
20510f2f
JM
926}
927
83d49856 928int security_file_open(struct file *file, const struct cred *cred)
20510f2f 929{
c4ec54b4
EP
930 int ret;
931
f25fce3e 932 ret = call_int_hook(file_open, 0, file, cred);
c4ec54b4
EP
933 if (ret)
934 return ret;
935
936 return fsnotify_perm(file, MAY_OPEN);
20510f2f
JM
937}
938
939int security_task_create(unsigned long clone_flags)
940{
f25fce3e 941 return call_int_hook(task_create, 0, clone_flags);
20510f2f
JM
942}
943
e4e55b47
TH
944int security_task_alloc(struct task_struct *task, unsigned long clone_flags)
945{
946 return call_int_hook(task_alloc, 0, task, clone_flags);
947}
948
1a2a4d06
KC
949void security_task_free(struct task_struct *task)
950{
f25fce3e 951 call_void_hook(task_free, task);
1a2a4d06
KC
952}
953
ee18d64c
DH
954int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
955{
f25fce3e 956 return call_int_hook(cred_alloc_blank, 0, cred, gfp);
ee18d64c
DH
957}
958
d84f4f99 959void security_cred_free(struct cred *cred)
20510f2f 960{
f25fce3e 961 call_void_hook(cred_free, cred);
20510f2f
JM
962}
963
d84f4f99 964int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
20510f2f 965{
f25fce3e 966 return call_int_hook(cred_prepare, 0, new, old, gfp);
d84f4f99
DH
967}
968
ee18d64c
DH
969void security_transfer_creds(struct cred *new, const struct cred *old)
970{
f25fce3e 971 call_void_hook(cred_transfer, new, old);
ee18d64c
DH
972}
973
3a3b7ce9
DH
974int security_kernel_act_as(struct cred *new, u32 secid)
975{
f25fce3e 976 return call_int_hook(kernel_act_as, 0, new, secid);
3a3b7ce9
DH
977}
978
979int security_kernel_create_files_as(struct cred *new, struct inode *inode)
980{
f25fce3e 981 return call_int_hook(kernel_create_files_as, 0, new, inode);
3a3b7ce9
DH
982}
983
dd8dbf2e 984int security_kernel_module_request(char *kmod_name)
9188499c 985{
f25fce3e 986 return call_int_hook(kernel_module_request, 0, kmod_name);
9188499c
EP
987}
988
39eeb4fb
MZ
989int security_kernel_read_file(struct file *file, enum kernel_read_file_id id)
990{
991 int ret;
992
993 ret = call_int_hook(kernel_read_file, 0, file, id);
994 if (ret)
995 return ret;
996 return ima_read_file(file, id);
997}
998EXPORT_SYMBOL_GPL(security_kernel_read_file);
999
bc8ca5b9
MZ
1000int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
1001 enum kernel_read_file_id id)
b44a7dfc 1002{
cf222217
MZ
1003 int ret;
1004
1005 ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id);
1006 if (ret)
1007 return ret;
1008 return ima_post_read_file(file, buf, size, id);
b44a7dfc
MZ
1009}
1010EXPORT_SYMBOL_GPL(security_kernel_post_read_file);
1011
d84f4f99
DH
1012int security_task_fix_setuid(struct cred *new, const struct cred *old,
1013 int flags)
20510f2f 1014{
f25fce3e 1015 return call_int_hook(task_fix_setuid, 0, new, old, flags);
20510f2f
JM
1016}
1017
20510f2f
JM
1018int security_task_setpgid(struct task_struct *p, pid_t pgid)
1019{
f25fce3e 1020 return call_int_hook(task_setpgid, 0, p, pgid);
20510f2f
JM
1021}
1022
1023int security_task_getpgid(struct task_struct *p)
1024{
f25fce3e 1025 return call_int_hook(task_getpgid, 0, p);
20510f2f
JM
1026}
1027
1028int security_task_getsid(struct task_struct *p)
1029{
f25fce3e 1030 return call_int_hook(task_getsid, 0, p);
20510f2f
JM
1031}
1032
1033void security_task_getsecid(struct task_struct *p, u32 *secid)
1034{
b1d9e6b0 1035 *secid = 0;
f25fce3e 1036 call_void_hook(task_getsecid, p, secid);
20510f2f
JM
1037}
1038EXPORT_SYMBOL(security_task_getsecid);
1039
20510f2f
JM
1040int security_task_setnice(struct task_struct *p, int nice)
1041{
f25fce3e 1042 return call_int_hook(task_setnice, 0, p, nice);
20510f2f
JM
1043}
1044
1045int security_task_setioprio(struct task_struct *p, int ioprio)
1046{
f25fce3e 1047 return call_int_hook(task_setioprio, 0, p, ioprio);
20510f2f
JM
1048}
1049
1050int security_task_getioprio(struct task_struct *p)
1051{
f25fce3e 1052 return call_int_hook(task_getioprio, 0, p);
20510f2f
JM
1053}
1054
791ec491
SS
1055int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
1056 unsigned int flags)
1057{
1058 return call_int_hook(task_prlimit, 0, cred, tcred, flags);
1059}
1060
8fd00b4d
JS
1061int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1062 struct rlimit *new_rlim)
20510f2f 1063{
f25fce3e 1064 return call_int_hook(task_setrlimit, 0, p, resource, new_rlim);
20510f2f
JM
1065}
1066
b0ae1981 1067int security_task_setscheduler(struct task_struct *p)
20510f2f 1068{
f25fce3e 1069 return call_int_hook(task_setscheduler, 0, p);
20510f2f
JM
1070}
1071
1072int security_task_getscheduler(struct task_struct *p)
1073{
f25fce3e 1074 return call_int_hook(task_getscheduler, 0, p);
20510f2f
JM
1075}
1076
1077int security_task_movememory(struct task_struct *p)
1078{
f25fce3e 1079 return call_int_hook(task_movememory, 0, p);
20510f2f
JM
1080}
1081
1082int security_task_kill(struct task_struct *p, struct siginfo *info,
1083 int sig, u32 secid)
1084{
f25fce3e 1085 return call_int_hook(task_kill, 0, p, info, sig, secid);
20510f2f
JM
1086}
1087
20510f2f 1088int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
d84f4f99 1089 unsigned long arg4, unsigned long arg5)
20510f2f 1090{
b1d9e6b0
CS
1091 int thisrc;
1092 int rc = -ENOSYS;
1093 struct security_hook_list *hp;
1094
1095 list_for_each_entry(hp, &security_hook_heads.task_prctl, list) {
1096 thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5);
1097 if (thisrc != -ENOSYS) {
1098 rc = thisrc;
1099 if (thisrc != 0)
1100 break;
1101 }
1102 }
1103 return rc;
20510f2f
JM
1104}
1105
1106void security_task_to_inode(struct task_struct *p, struct inode *inode)
1107{
f25fce3e 1108 call_void_hook(task_to_inode, p, inode);
20510f2f
JM
1109}
1110
1111int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
1112{
f25fce3e 1113 return call_int_hook(ipc_permission, 0, ipcp, flag);
20510f2f
JM
1114}
1115
8a076191
AD
1116void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1117{
b1d9e6b0 1118 *secid = 0;
f25fce3e 1119 call_void_hook(ipc_getsecid, ipcp, secid);
8a076191
AD
1120}
1121
20510f2f
JM
1122int security_msg_msg_alloc(struct msg_msg *msg)
1123{
f25fce3e 1124 return call_int_hook(msg_msg_alloc_security, 0, msg);
20510f2f
JM
1125}
1126
1127void security_msg_msg_free(struct msg_msg *msg)
1128{
f25fce3e 1129 call_void_hook(msg_msg_free_security, msg);
20510f2f
JM
1130}
1131
1132int security_msg_queue_alloc(struct msg_queue *msq)
1133{
f25fce3e 1134 return call_int_hook(msg_queue_alloc_security, 0, msq);
20510f2f
JM
1135}
1136
1137void security_msg_queue_free(struct msg_queue *msq)
1138{
f25fce3e 1139 call_void_hook(msg_queue_free_security, msq);
20510f2f
JM
1140}
1141
1142int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
1143{
f25fce3e 1144 return call_int_hook(msg_queue_associate, 0, msq, msqflg);
20510f2f
JM
1145}
1146
1147int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1148{
f25fce3e 1149 return call_int_hook(msg_queue_msgctl, 0, msq, cmd);
20510f2f
JM
1150}
1151
1152int security_msg_queue_msgsnd(struct msg_queue *msq,
1153 struct msg_msg *msg, int msqflg)
1154{
f25fce3e 1155 return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg);
20510f2f
JM
1156}
1157
1158int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1159 struct task_struct *target, long type, int mode)
1160{
f25fce3e 1161 return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode);
20510f2f
JM
1162}
1163
1164int security_shm_alloc(struct shmid_kernel *shp)
1165{
f25fce3e 1166 return call_int_hook(shm_alloc_security, 0, shp);
20510f2f
JM
1167}
1168
1169void security_shm_free(struct shmid_kernel *shp)
1170{
f25fce3e 1171 call_void_hook(shm_free_security, shp);
20510f2f
JM
1172}
1173
1174int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1175{
f25fce3e 1176 return call_int_hook(shm_associate, 0, shp, shmflg);
20510f2f
JM
1177}
1178
1179int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1180{
f25fce3e 1181 return call_int_hook(shm_shmctl, 0, shp, cmd);
20510f2f
JM
1182}
1183
1184int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1185{
f25fce3e 1186 return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg);
20510f2f
JM
1187}
1188
1189int security_sem_alloc(struct sem_array *sma)
1190{
f25fce3e 1191 return call_int_hook(sem_alloc_security, 0, sma);
20510f2f
JM
1192}
1193
1194void security_sem_free(struct sem_array *sma)
1195{
f25fce3e 1196 call_void_hook(sem_free_security, sma);
20510f2f
JM
1197}
1198
1199int security_sem_associate(struct sem_array *sma, int semflg)
1200{
f25fce3e 1201 return call_int_hook(sem_associate, 0, sma, semflg);
20510f2f
JM
1202}
1203
1204int security_sem_semctl(struct sem_array *sma, int cmd)
1205{
f25fce3e 1206 return call_int_hook(sem_semctl, 0, sma, cmd);
20510f2f
JM
1207}
1208
1209int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1210 unsigned nsops, int alter)
1211{
f25fce3e 1212 return call_int_hook(sem_semop, 0, sma, sops, nsops, alter);
20510f2f
JM
1213}
1214
1215void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1216{
1217 if (unlikely(inode && IS_PRIVATE(inode)))
1218 return;
f25fce3e 1219 call_void_hook(d_instantiate, dentry, inode);
20510f2f
JM
1220}
1221EXPORT_SYMBOL(security_d_instantiate);
1222
1223int security_getprocattr(struct task_struct *p, char *name, char **value)
1224{
b1d9e6b0 1225 return call_int_hook(getprocattr, -EINVAL, p, name, value);
20510f2f
JM
1226}
1227
b21507e2 1228int security_setprocattr(const char *name, void *value, size_t size)
20510f2f 1229{
b21507e2 1230 return call_int_hook(setprocattr, -EINVAL, name, value, size);
20510f2f
JM
1231}
1232
1233int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1234{
f25fce3e 1235 return call_int_hook(netlink_send, 0, sk, skb);
20510f2f 1236}
20510f2f 1237
746df9b5
DQ
1238int security_ismaclabel(const char *name)
1239{
f25fce3e 1240 return call_int_hook(ismaclabel, 0, name);
746df9b5
DQ
1241}
1242EXPORT_SYMBOL(security_ismaclabel);
1243
20510f2f
JM
1244int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1245{
b1d9e6b0
CS
1246 return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata,
1247 seclen);
20510f2f
JM
1248}
1249EXPORT_SYMBOL(security_secid_to_secctx);
1250
7bf570dc 1251int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
63cb3449 1252{
b1d9e6b0 1253 *secid = 0;
f25fce3e 1254 return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid);
63cb3449
DH
1255}
1256EXPORT_SYMBOL(security_secctx_to_secid);
1257
20510f2f
JM
1258void security_release_secctx(char *secdata, u32 seclen)
1259{
f25fce3e 1260 call_void_hook(release_secctx, secdata, seclen);
20510f2f
JM
1261}
1262EXPORT_SYMBOL(security_release_secctx);
1263
6f3be9f5
AG
1264void security_inode_invalidate_secctx(struct inode *inode)
1265{
1266 call_void_hook(inode_invalidate_secctx, inode);
1267}
1268EXPORT_SYMBOL(security_inode_invalidate_secctx);
1269
1ee65e37
DQ
1270int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1271{
f25fce3e 1272 return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen);
1ee65e37
DQ
1273}
1274EXPORT_SYMBOL(security_inode_notifysecctx);
1275
1276int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1277{
f25fce3e 1278 return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen);
1ee65e37
DQ
1279}
1280EXPORT_SYMBOL(security_inode_setsecctx);
1281
1282int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1283{
b1d9e6b0 1284 return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen);
1ee65e37
DQ
1285}
1286EXPORT_SYMBOL(security_inode_getsecctx);
1287
20510f2f
JM
1288#ifdef CONFIG_SECURITY_NETWORK
1289
3610cda5 1290int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
20510f2f 1291{
f25fce3e 1292 return call_int_hook(unix_stream_connect, 0, sock, other, newsk);
20510f2f
JM
1293}
1294EXPORT_SYMBOL(security_unix_stream_connect);
1295
1296int security_unix_may_send(struct socket *sock, struct socket *other)
1297{
f25fce3e 1298 return call_int_hook(unix_may_send, 0, sock, other);
20510f2f
JM
1299}
1300EXPORT_SYMBOL(security_unix_may_send);
1301
1302int security_socket_create(int family, int type, int protocol, int kern)
1303{
f25fce3e 1304 return call_int_hook(socket_create, 0, family, type, protocol, kern);
20510f2f
JM
1305}
1306
1307int security_socket_post_create(struct socket *sock, int family,
1308 int type, int protocol, int kern)
1309{
f25fce3e 1310 return call_int_hook(socket_post_create, 0, sock, family, type,
20510f2f
JM
1311 protocol, kern);
1312}
1313
1314int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1315{
f25fce3e 1316 return call_int_hook(socket_bind, 0, sock, address, addrlen);
20510f2f
JM
1317}
1318
1319int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1320{
f25fce3e 1321 return call_int_hook(socket_connect, 0, sock, address, addrlen);
20510f2f
JM
1322}
1323
1324int security_socket_listen(struct socket *sock, int backlog)
1325{
f25fce3e 1326 return call_int_hook(socket_listen, 0, sock, backlog);
20510f2f
JM
1327}
1328
1329int security_socket_accept(struct socket *sock, struct socket *newsock)
1330{
f25fce3e 1331 return call_int_hook(socket_accept, 0, sock, newsock);
20510f2f
JM
1332}
1333
20510f2f
JM
1334int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1335{
f25fce3e 1336 return call_int_hook(socket_sendmsg, 0, sock, msg, size);
20510f2f
JM
1337}
1338
1339int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1340 int size, int flags)
1341{
f25fce3e 1342 return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags);
20510f2f
JM
1343}
1344
1345int security_socket_getsockname(struct socket *sock)
1346{
f25fce3e 1347 return call_int_hook(socket_getsockname, 0, sock);
20510f2f
JM
1348}
1349
1350int security_socket_getpeername(struct socket *sock)
1351{
f25fce3e 1352 return call_int_hook(socket_getpeername, 0, sock);
20510f2f
JM
1353}
1354
1355int security_socket_getsockopt(struct socket *sock, int level, int optname)
1356{
f25fce3e 1357 return call_int_hook(socket_getsockopt, 0, sock, level, optname);
20510f2f
JM
1358}
1359
1360int security_socket_setsockopt(struct socket *sock, int level, int optname)
1361{
f25fce3e 1362 return call_int_hook(socket_setsockopt, 0, sock, level, optname);
20510f2f
JM
1363}
1364
1365int security_socket_shutdown(struct socket *sock, int how)
1366{
f25fce3e 1367 return call_int_hook(socket_shutdown, 0, sock, how);
20510f2f
JM
1368}
1369
1370int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1371{
f25fce3e 1372 return call_int_hook(socket_sock_rcv_skb, 0, sk, skb);
20510f2f
JM
1373}
1374EXPORT_SYMBOL(security_sock_rcv_skb);
1375
1376int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1377 int __user *optlen, unsigned len)
1378{
b1d9e6b0
CS
1379 return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock,
1380 optval, optlen, len);
20510f2f
JM
1381}
1382
1383int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1384{
e308fd3b
JB
1385 return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock,
1386 skb, secid);
20510f2f
JM
1387}
1388EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1389
1390int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1391{
f25fce3e 1392 return call_int_hook(sk_alloc_security, 0, sk, family, priority);
20510f2f
JM
1393}
1394
1395void security_sk_free(struct sock *sk)
1396{
f25fce3e 1397 call_void_hook(sk_free_security, sk);
20510f2f
JM
1398}
1399
1400void security_sk_clone(const struct sock *sk, struct sock *newsk)
1401{
f25fce3e 1402 call_void_hook(sk_clone_security, sk, newsk);
20510f2f 1403}
6230c9b4 1404EXPORT_SYMBOL(security_sk_clone);
20510f2f
JM
1405
1406void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1407{
f25fce3e 1408 call_void_hook(sk_getsecid, sk, &fl->flowi_secid);
20510f2f
JM
1409}
1410EXPORT_SYMBOL(security_sk_classify_flow);
1411
1412void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1413{
f25fce3e 1414 call_void_hook(req_classify_flow, req, fl);
20510f2f
JM
1415}
1416EXPORT_SYMBOL(security_req_classify_flow);
1417
1418void security_sock_graft(struct sock *sk, struct socket *parent)
1419{
f25fce3e 1420 call_void_hook(sock_graft, sk, parent);
20510f2f
JM
1421}
1422EXPORT_SYMBOL(security_sock_graft);
1423
1424int security_inet_conn_request(struct sock *sk,
1425 struct sk_buff *skb, struct request_sock *req)
1426{
f25fce3e 1427 return call_int_hook(inet_conn_request, 0, sk, skb, req);
20510f2f
JM
1428}
1429EXPORT_SYMBOL(security_inet_conn_request);
1430
1431void security_inet_csk_clone(struct sock *newsk,
1432 const struct request_sock *req)
1433{
f25fce3e 1434 call_void_hook(inet_csk_clone, newsk, req);
20510f2f
JM
1435}
1436
1437void security_inet_conn_established(struct sock *sk,
1438 struct sk_buff *skb)
1439{
f25fce3e 1440 call_void_hook(inet_conn_established, sk, skb);
20510f2f
JM
1441}
1442
2606fd1f
EP
1443int security_secmark_relabel_packet(u32 secid)
1444{
f25fce3e 1445 return call_int_hook(secmark_relabel_packet, 0, secid);
2606fd1f
EP
1446}
1447EXPORT_SYMBOL(security_secmark_relabel_packet);
1448
1449void security_secmark_refcount_inc(void)
1450{
f25fce3e 1451 call_void_hook(secmark_refcount_inc);
2606fd1f
EP
1452}
1453EXPORT_SYMBOL(security_secmark_refcount_inc);
1454
1455void security_secmark_refcount_dec(void)
1456{
f25fce3e 1457 call_void_hook(secmark_refcount_dec);
2606fd1f
EP
1458}
1459EXPORT_SYMBOL(security_secmark_refcount_dec);
1460
5dbbaf2d
PM
1461int security_tun_dev_alloc_security(void **security)
1462{
f25fce3e 1463 return call_int_hook(tun_dev_alloc_security, 0, security);
5dbbaf2d
PM
1464}
1465EXPORT_SYMBOL(security_tun_dev_alloc_security);
1466
1467void security_tun_dev_free_security(void *security)
1468{
f25fce3e 1469 call_void_hook(tun_dev_free_security, security);
5dbbaf2d
PM
1470}
1471EXPORT_SYMBOL(security_tun_dev_free_security);
1472
2b980dbd
PM
1473int security_tun_dev_create(void)
1474{
f25fce3e 1475 return call_int_hook(tun_dev_create, 0);
2b980dbd
PM
1476}
1477EXPORT_SYMBOL(security_tun_dev_create);
1478
5dbbaf2d 1479int security_tun_dev_attach_queue(void *security)
2b980dbd 1480{
f25fce3e 1481 return call_int_hook(tun_dev_attach_queue, 0, security);
2b980dbd 1482}
5dbbaf2d 1483EXPORT_SYMBOL(security_tun_dev_attach_queue);
2b980dbd 1484
5dbbaf2d 1485int security_tun_dev_attach(struct sock *sk, void *security)
2b980dbd 1486{
f25fce3e 1487 return call_int_hook(tun_dev_attach, 0, sk, security);
2b980dbd
PM
1488}
1489EXPORT_SYMBOL(security_tun_dev_attach);
1490
5dbbaf2d
PM
1491int security_tun_dev_open(void *security)
1492{
f25fce3e 1493 return call_int_hook(tun_dev_open, 0, security);
5dbbaf2d
PM
1494}
1495EXPORT_SYMBOL(security_tun_dev_open);
1496
20510f2f
JM
1497#endif /* CONFIG_SECURITY_NETWORK */
1498
1499#ifdef CONFIG_SECURITY_NETWORK_XFRM
1500
52a4c640
NA
1501int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1502 struct xfrm_user_sec_ctx *sec_ctx,
1503 gfp_t gfp)
20510f2f 1504{
f25fce3e 1505 return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp);
20510f2f
JM
1506}
1507EXPORT_SYMBOL(security_xfrm_policy_alloc);
1508
03e1ad7b
PM
1509int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1510 struct xfrm_sec_ctx **new_ctxp)
20510f2f 1511{
f25fce3e 1512 return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp);
20510f2f
JM
1513}
1514
03e1ad7b 1515void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
20510f2f 1516{
f25fce3e 1517 call_void_hook(xfrm_policy_free_security, ctx);
20510f2f
JM
1518}
1519EXPORT_SYMBOL(security_xfrm_policy_free);
1520
03e1ad7b 1521int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
20510f2f 1522{
f25fce3e 1523 return call_int_hook(xfrm_policy_delete_security, 0, ctx);
20510f2f
JM
1524}
1525
2e5aa866
PM
1526int security_xfrm_state_alloc(struct xfrm_state *x,
1527 struct xfrm_user_sec_ctx *sec_ctx)
20510f2f 1528{
f25fce3e 1529 return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx);
20510f2f
JM
1530}
1531EXPORT_SYMBOL(security_xfrm_state_alloc);
1532
1533int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1534 struct xfrm_sec_ctx *polsec, u32 secid)
1535{
f25fce3e 1536 return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid);
20510f2f
JM
1537}
1538
1539int security_xfrm_state_delete(struct xfrm_state *x)
1540{
f25fce3e 1541 return call_int_hook(xfrm_state_delete_security, 0, x);
20510f2f
JM
1542}
1543EXPORT_SYMBOL(security_xfrm_state_delete);
1544
1545void security_xfrm_state_free(struct xfrm_state *x)
1546{
f25fce3e 1547 call_void_hook(xfrm_state_free_security, x);
20510f2f
JM
1548}
1549
03e1ad7b 1550int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
20510f2f 1551{
f25fce3e 1552 return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir);
20510f2f
JM
1553}
1554
1555int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
e33f7704
DM
1556 struct xfrm_policy *xp,
1557 const struct flowi *fl)
20510f2f 1558{
b1d9e6b0
CS
1559 struct security_hook_list *hp;
1560 int rc = 1;
1561
1562 /*
1563 * Since this function is expected to return 0 or 1, the judgment
1564 * becomes difficult if multiple LSMs supply this call. Fortunately,
1565 * we can use the first LSM's judgment because currently only SELinux
1566 * supplies this call.
1567 *
1568 * For speed optimization, we explicitly break the loop rather than
1569 * using the macro
1570 */
1571 list_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match,
1572 list) {
1573 rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl);
1574 break;
1575 }
1576 return rc;
20510f2f
JM
1577}
1578
1579int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1580{
f25fce3e 1581 return call_int_hook(xfrm_decode_session, 0, skb, secid, 1);
20510f2f
JM
1582}
1583
1584void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1585{
f25fce3e
CS
1586 int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid,
1587 0);
20510f2f
JM
1588
1589 BUG_ON(rc);
1590}
1591EXPORT_SYMBOL(security_skb_classify_flow);
1592
1593#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1594
1595#ifdef CONFIG_KEYS
1596
d84f4f99
DH
1597int security_key_alloc(struct key *key, const struct cred *cred,
1598 unsigned long flags)
20510f2f 1599{
f25fce3e 1600 return call_int_hook(key_alloc, 0, key, cred, flags);
20510f2f
JM
1601}
1602
1603void security_key_free(struct key *key)
1604{
f25fce3e 1605 call_void_hook(key_free, key);
20510f2f
JM
1606}
1607
1608int security_key_permission(key_ref_t key_ref,
f5895943 1609 const struct cred *cred, unsigned perm)
20510f2f 1610{
f25fce3e 1611 return call_int_hook(key_permission, 0, key_ref, cred, perm);
20510f2f
JM
1612}
1613
70a5bb72
DH
1614int security_key_getsecurity(struct key *key, char **_buffer)
1615{
b1d9e6b0 1616 *_buffer = NULL;
f25fce3e 1617 return call_int_hook(key_getsecurity, 0, key, _buffer);
70a5bb72
DH
1618}
1619
20510f2f 1620#endif /* CONFIG_KEYS */
03d37d25
AD
1621
1622#ifdef CONFIG_AUDIT
1623
1624int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1625{
f25fce3e 1626 return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule);
03d37d25
AD
1627}
1628
1629int security_audit_rule_known(struct audit_krule *krule)
1630{
f25fce3e 1631 return call_int_hook(audit_rule_known, 0, krule);
03d37d25
AD
1632}
1633
1634void security_audit_rule_free(void *lsmrule)
1635{
f25fce3e 1636 call_void_hook(audit_rule_free, lsmrule);
03d37d25
AD
1637}
1638
1639int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1640 struct audit_context *actx)
1641{
f25fce3e
CS
1642 return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule,
1643 actx);
03d37d25 1644}
b1d9e6b0 1645#endif /* CONFIG_AUDIT */