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Commit | Line | Data |
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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> | |
d291f1a6 | 7 | * Copyright (C) 2016 Mellanox Technologies |
1da177e4 LT |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | */ | |
14 | ||
9b8c7c14 KC |
15 | #define pr_fmt(fmt) "LSM: " fmt |
16 | ||
afdb09c7 | 17 | #include <linux/bpf.h> |
c59ede7b | 18 | #include <linux/capability.h> |
d47be3df | 19 | #include <linux/dcache.h> |
1da177e4 LT |
20 | #include <linux/module.h> |
21 | #include <linux/init.h> | |
22 | #include <linux/kernel.h> | |
3c4ed7bd | 23 | #include <linux/lsm_hooks.h> |
f381c272 | 24 | #include <linux/integrity.h> |
6c21a7fb | 25 | #include <linux/ima.h> |
3e1be52d | 26 | #include <linux/evm.h> |
40401530 | 27 | #include <linux/fsnotify.h> |
8b3ec681 AV |
28 | #include <linux/mman.h> |
29 | #include <linux/mount.h> | |
30 | #include <linux/personality.h> | |
75331a59 | 31 | #include <linux/backing-dev.h> |
3bb857e4 | 32 | #include <linux/string.h> |
40401530 | 33 | #include <net/flow.h> |
1da177e4 | 34 | |
823eb1cc | 35 | #define MAX_LSM_EVM_XATTR 2 |
1da177e4 | 36 | |
b1d9e6b0 CS |
37 | /* Maximum number of letters for an LSM name string */ |
38 | #define SECURITY_NAME_MAX 10 | |
39 | ||
3dfc9b02 | 40 | struct security_hook_heads security_hook_heads __lsm_ro_after_init; |
8f408ab6 DJ |
41 | static ATOMIC_NOTIFIER_HEAD(lsm_notifier_chain); |
42 | ||
d69dece5 | 43 | char *lsm_names; |
076c54c5 | 44 | /* Boot-time LSM user choice */ |
6e65f92f JJ |
45 | static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = |
46 | CONFIG_DEFAULT_SECURITY; | |
1da177e4 | 47 | |
9b8c7c14 KC |
48 | static __initdata bool debug; |
49 | #define init_debug(...) \ | |
50 | do { \ | |
51 | if (debug) \ | |
52 | pr_info(__VA_ARGS__); \ | |
53 | } while (0) | |
54 | ||
5b89c1bd | 55 | static void __init major_lsm_init(void) |
1da177e4 | 56 | { |
5b89c1bd | 57 | struct lsm_info *lsm; |
58eacfff | 58 | int ret; |
5b89c1bd KC |
59 | |
60 | for (lsm = __start_lsm_info; lsm < __end_lsm_info; lsm++) { | |
9b8c7c14 | 61 | init_debug("initializing %s\n", lsm->name); |
3f6caaf5 KC |
62 | ret = lsm->init(); |
63 | WARN(ret, "%s failed to initialize: %d\n", lsm->name, ret); | |
1da177e4 LT |
64 | } |
65 | } | |
66 | ||
67 | /** | |
68 | * security_init - initializes the security framework | |
69 | * | |
70 | * This should be called early in the kernel initialization sequence. | |
71 | */ | |
72 | int __init security_init(void) | |
73 | { | |
3dfc9b02 | 74 | int i; |
df0ce173 | 75 | struct hlist_head *list = (struct hlist_head *) &security_hook_heads; |
3dfc9b02 | 76 | |
98d29170 KC |
77 | pr_info("Security Framework initializing\n"); |
78 | ||
df0ce173 | 79 | for (i = 0; i < sizeof(security_hook_heads) / sizeof(struct hlist_head); |
3dfc9b02 | 80 | i++) |
df0ce173 | 81 | INIT_HLIST_HEAD(&list[i]); |
1da177e4 | 82 | |
b1d9e6b0 | 83 | /* |
730daa16 | 84 | * Load minor LSMs, with the capability module always first. |
b1d9e6b0 CS |
85 | */ |
86 | capability_add_hooks(); | |
b1d9e6b0 | 87 | yama_add_hooks(); |
9b091556 | 88 | loadpin_add_hooks(); |
730daa16 | 89 | |
b1d9e6b0 | 90 | /* |
730daa16 | 91 | * Load all the remaining security modules. |
b1d9e6b0 | 92 | */ |
5b89c1bd | 93 | major_lsm_init(); |
1da177e4 LT |
94 | |
95 | return 0; | |
96 | } | |
97 | ||
076c54c5 AD |
98 | /* Save user chosen LSM */ |
99 | static int __init choose_lsm(char *str) | |
100 | { | |
101 | strncpy(chosen_lsm, str, SECURITY_NAME_MAX); | |
102 | return 1; | |
103 | } | |
104 | __setup("security=", choose_lsm); | |
105 | ||
9b8c7c14 KC |
106 | /* Enable LSM order debugging. */ |
107 | static int __init enable_debug(char *str) | |
108 | { | |
109 | debug = true; | |
110 | return 1; | |
111 | } | |
112 | __setup("lsm.debug", enable_debug); | |
113 | ||
3bb857e4 MS |
114 | static bool match_last_lsm(const char *list, const char *lsm) |
115 | { | |
116 | const char *last; | |
117 | ||
118 | if (WARN_ON(!list || !lsm)) | |
119 | return false; | |
120 | last = strrchr(list, ','); | |
121 | if (last) | |
122 | /* Pass the comma, strcmp() will check for '\0' */ | |
123 | last++; | |
124 | else | |
125 | last = list; | |
126 | return !strcmp(last, lsm); | |
127 | } | |
128 | ||
d69dece5 CS |
129 | static int lsm_append(char *new, char **result) |
130 | { | |
131 | char *cp; | |
132 | ||
133 | if (*result == NULL) { | |
134 | *result = kstrdup(new, GFP_KERNEL); | |
87ea5843 EB |
135 | if (*result == NULL) |
136 | return -ENOMEM; | |
d69dece5 | 137 | } else { |
3bb857e4 MS |
138 | /* Check if it is the last registered name */ |
139 | if (match_last_lsm(*result, new)) | |
140 | return 0; | |
d69dece5 CS |
141 | cp = kasprintf(GFP_KERNEL, "%s,%s", *result, new); |
142 | if (cp == NULL) | |
143 | return -ENOMEM; | |
144 | kfree(*result); | |
145 | *result = cp; | |
146 | } | |
147 | return 0; | |
148 | } | |
149 | ||
076c54c5 AD |
150 | /** |
151 | * security_module_enable - Load given security module on boot ? | |
b1d9e6b0 | 152 | * @module: the name of the module |
076c54c5 AD |
153 | * |
154 | * Each LSM must pass this method before registering its own operations | |
155 | * to avoid security registration races. This method may also be used | |
7cea51be | 156 | * to check if your LSM is currently loaded during kernel initialization. |
076c54c5 | 157 | * |
0e056eb5 MCC |
158 | * Returns: |
159 | * | |
160 | * true if: | |
161 | * | |
162 | * - The passed LSM is the one chosen by user at boot time, | |
163 | * - or the passed LSM is configured as the default and the user did not | |
164 | * choose an alternate LSM at boot time. | |
165 | * | |
076c54c5 AD |
166 | * Otherwise, return false. |
167 | */ | |
b1d9e6b0 | 168 | int __init security_module_enable(const char *module) |
076c54c5 | 169 | { |
b1d9e6b0 | 170 | return !strcmp(module, chosen_lsm); |
076c54c5 AD |
171 | } |
172 | ||
d69dece5 CS |
173 | /** |
174 | * security_add_hooks - Add a modules hooks to the hook lists. | |
175 | * @hooks: the hooks to add | |
176 | * @count: the number of hooks to add | |
177 | * @lsm: the name of the security module | |
178 | * | |
179 | * Each LSM has to register its hooks with the infrastructure. | |
180 | */ | |
181 | void __init security_add_hooks(struct security_hook_list *hooks, int count, | |
182 | char *lsm) | |
183 | { | |
184 | int i; | |
185 | ||
186 | for (i = 0; i < count; i++) { | |
187 | hooks[i].lsm = lsm; | |
df0ce173 | 188 | hlist_add_tail_rcu(&hooks[i].list, hooks[i].head); |
d69dece5 CS |
189 | } |
190 | if (lsm_append(lsm, &lsm_names) < 0) | |
191 | panic("%s - Cannot get early memory.\n", __func__); | |
192 | } | |
193 | ||
8f408ab6 DJ |
194 | int call_lsm_notifier(enum lsm_event event, void *data) |
195 | { | |
196 | return atomic_notifier_call_chain(&lsm_notifier_chain, event, data); | |
197 | } | |
198 | EXPORT_SYMBOL(call_lsm_notifier); | |
199 | ||
200 | int register_lsm_notifier(struct notifier_block *nb) | |
201 | { | |
202 | return atomic_notifier_chain_register(&lsm_notifier_chain, nb); | |
203 | } | |
204 | EXPORT_SYMBOL(register_lsm_notifier); | |
205 | ||
206 | int unregister_lsm_notifier(struct notifier_block *nb) | |
207 | { | |
208 | return atomic_notifier_chain_unregister(&lsm_notifier_chain, nb); | |
209 | } | |
210 | EXPORT_SYMBOL(unregister_lsm_notifier); | |
211 | ||
f25fce3e | 212 | /* |
b1d9e6b0 | 213 | * Hook list operation macros. |
1da177e4 | 214 | * |
f25fce3e CS |
215 | * call_void_hook: |
216 | * This is a hook that does not return a value. | |
1da177e4 | 217 | * |
f25fce3e CS |
218 | * call_int_hook: |
219 | * This is a hook that returns a value. | |
1da177e4 | 220 | */ |
1da177e4 | 221 | |
b1d9e6b0 CS |
222 | #define call_void_hook(FUNC, ...) \ |
223 | do { \ | |
224 | struct security_hook_list *P; \ | |
225 | \ | |
df0ce173 | 226 | hlist_for_each_entry(P, &security_hook_heads.FUNC, list) \ |
b1d9e6b0 CS |
227 | P->hook.FUNC(__VA_ARGS__); \ |
228 | } while (0) | |
229 | ||
230 | #define call_int_hook(FUNC, IRC, ...) ({ \ | |
231 | int RC = IRC; \ | |
232 | do { \ | |
233 | struct security_hook_list *P; \ | |
234 | \ | |
df0ce173 | 235 | hlist_for_each_entry(P, &security_hook_heads.FUNC, list) { \ |
b1d9e6b0 CS |
236 | RC = P->hook.FUNC(__VA_ARGS__); \ |
237 | if (RC != 0) \ | |
238 | break; \ | |
239 | } \ | |
240 | } while (0); \ | |
241 | RC; \ | |
242 | }) | |
1da177e4 | 243 | |
20510f2f JM |
244 | /* Security operations */ |
245 | ||
79af7307 SS |
246 | int security_binder_set_context_mgr(struct task_struct *mgr) |
247 | { | |
f25fce3e | 248 | return call_int_hook(binder_set_context_mgr, 0, mgr); |
79af7307 SS |
249 | } |
250 | ||
251 | int security_binder_transaction(struct task_struct *from, | |
252 | struct task_struct *to) | |
253 | { | |
f25fce3e | 254 | return call_int_hook(binder_transaction, 0, from, to); |
79af7307 SS |
255 | } |
256 | ||
257 | int security_binder_transfer_binder(struct task_struct *from, | |
258 | struct task_struct *to) | |
259 | { | |
f25fce3e | 260 | return call_int_hook(binder_transfer_binder, 0, from, to); |
79af7307 SS |
261 | } |
262 | ||
263 | int security_binder_transfer_file(struct task_struct *from, | |
264 | struct task_struct *to, struct file *file) | |
265 | { | |
f25fce3e | 266 | return call_int_hook(binder_transfer_file, 0, from, to, file); |
79af7307 SS |
267 | } |
268 | ||
9e48858f | 269 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode) |
20510f2f | 270 | { |
f25fce3e | 271 | return call_int_hook(ptrace_access_check, 0, child, mode); |
5cd9c58f DH |
272 | } |
273 | ||
274 | int security_ptrace_traceme(struct task_struct *parent) | |
275 | { | |
f25fce3e | 276 | return call_int_hook(ptrace_traceme, 0, parent); |
20510f2f JM |
277 | } |
278 | ||
279 | int security_capget(struct task_struct *target, | |
280 | kernel_cap_t *effective, | |
281 | kernel_cap_t *inheritable, | |
282 | kernel_cap_t *permitted) | |
283 | { | |
f25fce3e CS |
284 | return call_int_hook(capget, 0, target, |
285 | effective, inheritable, permitted); | |
20510f2f JM |
286 | } |
287 | ||
d84f4f99 DH |
288 | int security_capset(struct cred *new, const struct cred *old, |
289 | const kernel_cap_t *effective, | |
290 | const kernel_cap_t *inheritable, | |
291 | const kernel_cap_t *permitted) | |
20510f2f | 292 | { |
f25fce3e CS |
293 | return call_int_hook(capset, 0, new, old, |
294 | effective, inheritable, permitted); | |
20510f2f JM |
295 | } |
296 | ||
b7e724d3 | 297 | int security_capable(const struct cred *cred, struct user_namespace *ns, |
3486740a | 298 | int cap) |
20510f2f | 299 | { |
f25fce3e | 300 | return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT); |
06112163 EP |
301 | } |
302 | ||
c7eba4a9 EP |
303 | int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, |
304 | int cap) | |
06112163 | 305 | { |
f25fce3e | 306 | return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT); |
20510f2f JM |
307 | } |
308 | ||
20510f2f JM |
309 | int security_quotactl(int cmds, int type, int id, struct super_block *sb) |
310 | { | |
f25fce3e | 311 | return call_int_hook(quotactl, 0, cmds, type, id, sb); |
20510f2f JM |
312 | } |
313 | ||
314 | int security_quota_on(struct dentry *dentry) | |
315 | { | |
f25fce3e | 316 | return call_int_hook(quota_on, 0, dentry); |
20510f2f JM |
317 | } |
318 | ||
12b3052c | 319 | int security_syslog(int type) |
20510f2f | 320 | { |
f25fce3e | 321 | return call_int_hook(syslog, 0, type); |
20510f2f JM |
322 | } |
323 | ||
457db29b | 324 | int security_settime64(const struct timespec64 *ts, const struct timezone *tz) |
20510f2f | 325 | { |
f25fce3e | 326 | return call_int_hook(settime, 0, ts, tz); |
20510f2f JM |
327 | } |
328 | ||
20510f2f JM |
329 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
330 | { | |
b1d9e6b0 CS |
331 | struct security_hook_list *hp; |
332 | int cap_sys_admin = 1; | |
333 | int rc; | |
334 | ||
335 | /* | |
336 | * The module will respond with a positive value if | |
337 | * it thinks the __vm_enough_memory() call should be | |
338 | * made with the cap_sys_admin set. If all of the modules | |
339 | * agree that it should be set it will. If any module | |
340 | * thinks it should not be set it won't. | |
341 | */ | |
df0ce173 | 342 | hlist_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) { |
b1d9e6b0 CS |
343 | rc = hp->hook.vm_enough_memory(mm, pages); |
344 | if (rc <= 0) { | |
345 | cap_sys_admin = 0; | |
346 | break; | |
347 | } | |
348 | } | |
349 | return __vm_enough_memory(mm, pages, cap_sys_admin); | |
20510f2f JM |
350 | } |
351 | ||
a6f76f23 | 352 | int security_bprm_set_creds(struct linux_binprm *bprm) |
20510f2f | 353 | { |
f25fce3e | 354 | return call_int_hook(bprm_set_creds, 0, bprm); |
20510f2f JM |
355 | } |
356 | ||
a6f76f23 | 357 | int security_bprm_check(struct linux_binprm *bprm) |
20510f2f | 358 | { |
6c21a7fb MZ |
359 | int ret; |
360 | ||
f25fce3e | 361 | ret = call_int_hook(bprm_check_security, 0, bprm); |
6c21a7fb MZ |
362 | if (ret) |
363 | return ret; | |
364 | return ima_bprm_check(bprm); | |
20510f2f JM |
365 | } |
366 | ||
a6f76f23 | 367 | void security_bprm_committing_creds(struct linux_binprm *bprm) |
20510f2f | 368 | { |
f25fce3e | 369 | call_void_hook(bprm_committing_creds, bprm); |
20510f2f JM |
370 | } |
371 | ||
a6f76f23 | 372 | void security_bprm_committed_creds(struct linux_binprm *bprm) |
20510f2f | 373 | { |
f25fce3e | 374 | call_void_hook(bprm_committed_creds, bprm); |
20510f2f JM |
375 | } |
376 | ||
20510f2f JM |
377 | int security_sb_alloc(struct super_block *sb) |
378 | { | |
f25fce3e | 379 | return call_int_hook(sb_alloc_security, 0, sb); |
20510f2f JM |
380 | } |
381 | ||
382 | void security_sb_free(struct super_block *sb) | |
383 | { | |
f25fce3e | 384 | call_void_hook(sb_free_security, sb); |
20510f2f JM |
385 | } |
386 | ||
204cc0cc | 387 | void security_free_mnt_opts(void **mnt_opts) |
20510f2f | 388 | { |
204cc0cc AV |
389 | if (!*mnt_opts) |
390 | return; | |
391 | call_void_hook(sb_free_mnt_opts, *mnt_opts); | |
392 | *mnt_opts = NULL; | |
393 | } | |
394 | EXPORT_SYMBOL(security_free_mnt_opts); | |
395 | ||
396 | int security_sb_eat_lsm_opts(char *options, void **mnt_opts) | |
397 | { | |
398 | return call_int_hook(sb_eat_lsm_opts, 0, options, mnt_opts); | |
20510f2f | 399 | } |
f5c0c26d | 400 | EXPORT_SYMBOL(security_sb_eat_lsm_opts); |
20510f2f | 401 | |
c039bc3c | 402 | int security_sb_remount(struct super_block *sb, |
204cc0cc | 403 | void *mnt_opts) |
ff36fe2c | 404 | { |
204cc0cc | 405 | return call_int_hook(sb_remount, 0, sb, mnt_opts); |
ff36fe2c | 406 | } |
a65001e8 | 407 | EXPORT_SYMBOL(security_sb_remount); |
ff36fe2c | 408 | |
a10d7c22 | 409 | int security_sb_kern_mount(struct super_block *sb) |
20510f2f | 410 | { |
a10d7c22 | 411 | return call_int_hook(sb_kern_mount, 0, sb); |
20510f2f JM |
412 | } |
413 | ||
2069f457 EP |
414 | int security_sb_show_options(struct seq_file *m, struct super_block *sb) |
415 | { | |
f25fce3e | 416 | return call_int_hook(sb_show_options, 0, m, sb); |
2069f457 EP |
417 | } |
418 | ||
20510f2f JM |
419 | int security_sb_statfs(struct dentry *dentry) |
420 | { | |
f25fce3e | 421 | return call_int_hook(sb_statfs, 0, dentry); |
20510f2f JM |
422 | } |
423 | ||
8a04c43b | 424 | int security_sb_mount(const char *dev_name, const struct path *path, |
808d4e3c | 425 | const char *type, unsigned long flags, void *data) |
20510f2f | 426 | { |
f25fce3e | 427 | return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data); |
20510f2f JM |
428 | } |
429 | ||
20510f2f JM |
430 | int security_sb_umount(struct vfsmount *mnt, int flags) |
431 | { | |
f25fce3e | 432 | return call_int_hook(sb_umount, 0, mnt, flags); |
20510f2f JM |
433 | } |
434 | ||
3b73b68c | 435 | int security_sb_pivotroot(const struct path *old_path, const struct path *new_path) |
20510f2f | 436 | { |
f25fce3e | 437 | return call_int_hook(sb_pivotroot, 0, old_path, new_path); |
20510f2f JM |
438 | } |
439 | ||
c9180a57 | 440 | int security_sb_set_mnt_opts(struct super_block *sb, |
204cc0cc | 441 | void *mnt_opts, |
649f6e77 DQ |
442 | unsigned long kern_flags, |
443 | unsigned long *set_kern_flags) | |
c9180a57 | 444 | { |
b1d9e6b0 | 445 | return call_int_hook(sb_set_mnt_opts, |
204cc0cc AV |
446 | mnt_opts ? -EOPNOTSUPP : 0, sb, |
447 | mnt_opts, kern_flags, set_kern_flags); | |
c9180a57 | 448 | } |
e0007529 | 449 | EXPORT_SYMBOL(security_sb_set_mnt_opts); |
c9180a57 | 450 | |
094f7b69 | 451 | int security_sb_clone_mnt_opts(const struct super_block *oldsb, |
0b4d3452 SM |
452 | struct super_block *newsb, |
453 | unsigned long kern_flags, | |
454 | unsigned long *set_kern_flags) | |
c9180a57 | 455 | { |
0b4d3452 SM |
456 | return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb, |
457 | kern_flags, set_kern_flags); | |
c9180a57 | 458 | } |
e0007529 EP |
459 | EXPORT_SYMBOL(security_sb_clone_mnt_opts); |
460 | ||
204cc0cc | 461 | int security_sb_parse_opts_str(char *options, void **mnt_opts) |
e0007529 | 462 | { |
204cc0cc | 463 | return call_int_hook(sb_parse_opts_str, 0, options, mnt_opts); |
e0007529 EP |
464 | } |
465 | EXPORT_SYMBOL(security_sb_parse_opts_str); | |
c9180a57 | 466 | |
20510f2f JM |
467 | int security_inode_alloc(struct inode *inode) |
468 | { | |
469 | inode->i_security = NULL; | |
f25fce3e | 470 | return call_int_hook(inode_alloc_security, 0, inode); |
20510f2f JM |
471 | } |
472 | ||
473 | void security_inode_free(struct inode *inode) | |
474 | { | |
f381c272 | 475 | integrity_inode_free(inode); |
f25fce3e | 476 | call_void_hook(inode_free_security, inode); |
20510f2f JM |
477 | } |
478 | ||
d47be3df | 479 | int security_dentry_init_security(struct dentry *dentry, int mode, |
4f3ccd76 | 480 | const struct qstr *name, void **ctx, |
d47be3df DQ |
481 | u32 *ctxlen) |
482 | { | |
b1d9e6b0 CS |
483 | return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode, |
484 | name, ctx, ctxlen); | |
d47be3df DQ |
485 | } |
486 | EXPORT_SYMBOL(security_dentry_init_security); | |
487 | ||
2602625b VG |
488 | int security_dentry_create_files_as(struct dentry *dentry, int mode, |
489 | struct qstr *name, | |
490 | const struct cred *old, struct cred *new) | |
491 | { | |
492 | return call_int_hook(dentry_create_files_as, 0, dentry, mode, | |
493 | name, old, new); | |
494 | } | |
495 | EXPORT_SYMBOL(security_dentry_create_files_as); | |
496 | ||
20510f2f | 497 | int security_inode_init_security(struct inode *inode, struct inode *dir, |
9d8f13ba MZ |
498 | const struct qstr *qstr, |
499 | const initxattrs initxattrs, void *fs_data) | |
20510f2f | 500 | { |
823eb1cc MZ |
501 | struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1]; |
502 | struct xattr *lsm_xattr, *evm_xattr, *xattr; | |
9d8f13ba MZ |
503 | int ret; |
504 | ||
20510f2f | 505 | if (unlikely(IS_PRIVATE(inode))) |
fb88c2b6 | 506 | return 0; |
9d8f13ba | 507 | |
9d8f13ba | 508 | if (!initxattrs) |
e308fd3b JB |
509 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, |
510 | dir, qstr, NULL, NULL, NULL); | |
9548906b | 511 | memset(new_xattrs, 0, sizeof(new_xattrs)); |
9d8f13ba | 512 | lsm_xattr = new_xattrs; |
b1d9e6b0 | 513 | ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr, |
9d8f13ba MZ |
514 | &lsm_xattr->name, |
515 | &lsm_xattr->value, | |
516 | &lsm_xattr->value_len); | |
517 | if (ret) | |
518 | goto out; | |
823eb1cc MZ |
519 | |
520 | evm_xattr = lsm_xattr + 1; | |
521 | ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr); | |
522 | if (ret) | |
523 | goto out; | |
9d8f13ba MZ |
524 | ret = initxattrs(inode, new_xattrs, fs_data); |
525 | out: | |
9548906b | 526 | for (xattr = new_xattrs; xattr->value != NULL; xattr++) |
823eb1cc | 527 | kfree(xattr->value); |
9d8f13ba MZ |
528 | return (ret == -EOPNOTSUPP) ? 0 : ret; |
529 | } | |
530 | EXPORT_SYMBOL(security_inode_init_security); | |
531 | ||
532 | int security_old_inode_init_security(struct inode *inode, struct inode *dir, | |
9548906b | 533 | const struct qstr *qstr, const char **name, |
9d8f13ba | 534 | void **value, size_t *len) |
20510f2f JM |
535 | { |
536 | if (unlikely(IS_PRIVATE(inode))) | |
30e05324 | 537 | return -EOPNOTSUPP; |
e308fd3b JB |
538 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, |
539 | qstr, name, value, len); | |
20510f2f | 540 | } |
9d8f13ba | 541 | EXPORT_SYMBOL(security_old_inode_init_security); |
20510f2f | 542 | |
be6d3e56 | 543 | #ifdef CONFIG_SECURITY_PATH |
d3607752 | 544 | int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, |
be6d3e56 KT |
545 | unsigned int dev) |
546 | { | |
c6f493d6 | 547 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 548 | return 0; |
f25fce3e | 549 | return call_int_hook(path_mknod, 0, dir, dentry, mode, dev); |
be6d3e56 KT |
550 | } |
551 | EXPORT_SYMBOL(security_path_mknod); | |
552 | ||
d3607752 | 553 | int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode) |
be6d3e56 | 554 | { |
c6f493d6 | 555 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 556 | return 0; |
f25fce3e | 557 | return call_int_hook(path_mkdir, 0, dir, dentry, mode); |
be6d3e56 | 558 | } |
82140443 | 559 | EXPORT_SYMBOL(security_path_mkdir); |
be6d3e56 | 560 | |
989f74e0 | 561 | int security_path_rmdir(const struct path *dir, struct dentry *dentry) |
be6d3e56 | 562 | { |
c6f493d6 | 563 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 564 | return 0; |
f25fce3e | 565 | return call_int_hook(path_rmdir, 0, dir, dentry); |
be6d3e56 KT |
566 | } |
567 | ||
989f74e0 | 568 | int security_path_unlink(const struct path *dir, struct dentry *dentry) |
be6d3e56 | 569 | { |
c6f493d6 | 570 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 571 | return 0; |
f25fce3e | 572 | return call_int_hook(path_unlink, 0, dir, dentry); |
be6d3e56 | 573 | } |
82140443 | 574 | EXPORT_SYMBOL(security_path_unlink); |
be6d3e56 | 575 | |
d3607752 | 576 | int security_path_symlink(const struct path *dir, struct dentry *dentry, |
be6d3e56 KT |
577 | const char *old_name) |
578 | { | |
c6f493d6 | 579 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 580 | return 0; |
f25fce3e | 581 | return call_int_hook(path_symlink, 0, dir, dentry, old_name); |
be6d3e56 KT |
582 | } |
583 | ||
3ccee46a | 584 | int security_path_link(struct dentry *old_dentry, const struct path *new_dir, |
be6d3e56 KT |
585 | struct dentry *new_dentry) |
586 | { | |
c6f493d6 | 587 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
be6d3e56 | 588 | return 0; |
f25fce3e | 589 | return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry); |
be6d3e56 KT |
590 | } |
591 | ||
3ccee46a AV |
592 | int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, |
593 | const struct path *new_dir, struct dentry *new_dentry, | |
0b3974eb | 594 | unsigned int flags) |
be6d3e56 | 595 | { |
c6f493d6 DH |
596 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
597 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
be6d3e56 | 598 | return 0; |
da1ce067 MS |
599 | |
600 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e CS |
601 | int err = call_int_hook(path_rename, 0, new_dir, new_dentry, |
602 | old_dir, old_dentry); | |
da1ce067 MS |
603 | if (err) |
604 | return err; | |
605 | } | |
606 | ||
f25fce3e CS |
607 | return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir, |
608 | new_dentry); | |
be6d3e56 | 609 | } |
82140443 | 610 | EXPORT_SYMBOL(security_path_rename); |
be6d3e56 | 611 | |
81f4c506 | 612 | int security_path_truncate(const struct path *path) |
be6d3e56 | 613 | { |
c6f493d6 | 614 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
be6d3e56 | 615 | return 0; |
f25fce3e | 616 | return call_int_hook(path_truncate, 0, path); |
be6d3e56 | 617 | } |
89eda068 | 618 | |
be01f9f2 | 619 | int security_path_chmod(const struct path *path, umode_t mode) |
89eda068 | 620 | { |
c6f493d6 | 621 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 622 | return 0; |
f25fce3e | 623 | return call_int_hook(path_chmod, 0, path, mode); |
89eda068 TH |
624 | } |
625 | ||
7fd25dac | 626 | int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) |
89eda068 | 627 | { |
c6f493d6 | 628 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 629 | return 0; |
f25fce3e | 630 | return call_int_hook(path_chown, 0, path, uid, gid); |
89eda068 | 631 | } |
8b8efb44 | 632 | |
77b286c0 | 633 | int security_path_chroot(const struct path *path) |
8b8efb44 | 634 | { |
f25fce3e | 635 | return call_int_hook(path_chroot, 0, path); |
8b8efb44 | 636 | } |
be6d3e56 KT |
637 | #endif |
638 | ||
4acdaf27 | 639 | int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
640 | { |
641 | if (unlikely(IS_PRIVATE(dir))) | |
642 | return 0; | |
f25fce3e | 643 | return call_int_hook(inode_create, 0, dir, dentry, mode); |
20510f2f | 644 | } |
800a9647 | 645 | EXPORT_SYMBOL_GPL(security_inode_create); |
20510f2f JM |
646 | |
647 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, | |
648 | struct dentry *new_dentry) | |
649 | { | |
c6f493d6 | 650 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
20510f2f | 651 | return 0; |
f25fce3e | 652 | return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry); |
20510f2f JM |
653 | } |
654 | ||
655 | int security_inode_unlink(struct inode *dir, struct dentry *dentry) | |
656 | { | |
c6f493d6 | 657 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 658 | return 0; |
f25fce3e | 659 | return call_int_hook(inode_unlink, 0, dir, dentry); |
20510f2f JM |
660 | } |
661 | ||
662 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
663 | const char *old_name) | |
664 | { | |
665 | if (unlikely(IS_PRIVATE(dir))) | |
666 | return 0; | |
f25fce3e | 667 | return call_int_hook(inode_symlink, 0, dir, dentry, old_name); |
20510f2f JM |
668 | } |
669 | ||
18bb1db3 | 670 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
671 | { |
672 | if (unlikely(IS_PRIVATE(dir))) | |
673 | return 0; | |
f25fce3e | 674 | return call_int_hook(inode_mkdir, 0, dir, dentry, mode); |
20510f2f | 675 | } |
800a9647 | 676 | EXPORT_SYMBOL_GPL(security_inode_mkdir); |
20510f2f JM |
677 | |
678 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry) | |
679 | { | |
c6f493d6 | 680 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 681 | return 0; |
f25fce3e | 682 | return call_int_hook(inode_rmdir, 0, dir, dentry); |
20510f2f JM |
683 | } |
684 | ||
1a67aafb | 685 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) |
20510f2f JM |
686 | { |
687 | if (unlikely(IS_PRIVATE(dir))) | |
688 | return 0; | |
f25fce3e | 689 | return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev); |
20510f2f JM |
690 | } |
691 | ||
692 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, | |
0b3974eb MS |
693 | struct inode *new_dir, struct dentry *new_dentry, |
694 | unsigned int flags) | |
20510f2f | 695 | { |
c6f493d6 DH |
696 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
697 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
20510f2f | 698 | return 0; |
da1ce067 MS |
699 | |
700 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e | 701 | int err = call_int_hook(inode_rename, 0, new_dir, new_dentry, |
da1ce067 MS |
702 | old_dir, old_dentry); |
703 | if (err) | |
704 | return err; | |
705 | } | |
706 | ||
f25fce3e | 707 | return call_int_hook(inode_rename, 0, old_dir, old_dentry, |
20510f2f JM |
708 | new_dir, new_dentry); |
709 | } | |
710 | ||
711 | int security_inode_readlink(struct dentry *dentry) | |
712 | { | |
c6f493d6 | 713 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 714 | return 0; |
f25fce3e | 715 | return call_int_hook(inode_readlink, 0, dentry); |
20510f2f JM |
716 | } |
717 | ||
bda0be7a N |
718 | int security_inode_follow_link(struct dentry *dentry, struct inode *inode, |
719 | bool rcu) | |
20510f2f | 720 | { |
bda0be7a | 721 | if (unlikely(IS_PRIVATE(inode))) |
20510f2f | 722 | return 0; |
e22619a2 | 723 | return call_int_hook(inode_follow_link, 0, dentry, inode, rcu); |
20510f2f JM |
724 | } |
725 | ||
b77b0646 | 726 | int security_inode_permission(struct inode *inode, int mask) |
20510f2f JM |
727 | { |
728 | if (unlikely(IS_PRIVATE(inode))) | |
729 | return 0; | |
f25fce3e | 730 | return call_int_hook(inode_permission, 0, inode, mask); |
20510f2f JM |
731 | } |
732 | ||
733 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr) | |
734 | { | |
817b54aa MZ |
735 | int ret; |
736 | ||
c6f493d6 | 737 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 738 | return 0; |
f25fce3e | 739 | ret = call_int_hook(inode_setattr, 0, dentry, attr); |
817b54aa MZ |
740 | if (ret) |
741 | return ret; | |
742 | return evm_inode_setattr(dentry, attr); | |
20510f2f | 743 | } |
b1da47e2 | 744 | EXPORT_SYMBOL_GPL(security_inode_setattr); |
20510f2f | 745 | |
3f7036a0 | 746 | int security_inode_getattr(const struct path *path) |
20510f2f | 747 | { |
c6f493d6 | 748 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
20510f2f | 749 | return 0; |
f25fce3e | 750 | return call_int_hook(inode_getattr, 0, path); |
20510f2f JM |
751 | } |
752 | ||
8f0cfa52 DH |
753 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
754 | const void *value, size_t size, int flags) | |
20510f2f | 755 | { |
3e1be52d MZ |
756 | int ret; |
757 | ||
c6f493d6 | 758 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 759 | return 0; |
b1d9e6b0 CS |
760 | /* |
761 | * SELinux and Smack integrate the cap call, | |
762 | * so assume that all LSMs supplying this call do so. | |
763 | */ | |
764 | ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size, | |
f25fce3e | 765 | flags); |
b1d9e6b0 CS |
766 | |
767 | if (ret == 1) | |
768 | ret = cap_inode_setxattr(dentry, name, value, size, flags); | |
42c63330 MZ |
769 | if (ret) |
770 | return ret; | |
771 | ret = ima_inode_setxattr(dentry, name, value, size); | |
3e1be52d MZ |
772 | if (ret) |
773 | return ret; | |
774 | return evm_inode_setxattr(dentry, name, value, size); | |
20510f2f JM |
775 | } |
776 | ||
8f0cfa52 DH |
777 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, |
778 | const void *value, size_t size, int flags) | |
20510f2f | 779 | { |
c6f493d6 | 780 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 781 | return; |
f25fce3e | 782 | call_void_hook(inode_post_setxattr, dentry, name, value, size, flags); |
3e1be52d | 783 | evm_inode_post_setxattr(dentry, name, value, size); |
20510f2f JM |
784 | } |
785 | ||
8f0cfa52 | 786 | int security_inode_getxattr(struct dentry *dentry, const char *name) |
20510f2f | 787 | { |
c6f493d6 | 788 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 789 | return 0; |
f25fce3e | 790 | return call_int_hook(inode_getxattr, 0, dentry, name); |
20510f2f JM |
791 | } |
792 | ||
793 | int security_inode_listxattr(struct dentry *dentry) | |
794 | { | |
c6f493d6 | 795 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 796 | return 0; |
f25fce3e | 797 | return call_int_hook(inode_listxattr, 0, dentry); |
20510f2f JM |
798 | } |
799 | ||
8f0cfa52 | 800 | int security_inode_removexattr(struct dentry *dentry, const char *name) |
20510f2f | 801 | { |
3e1be52d MZ |
802 | int ret; |
803 | ||
c6f493d6 | 804 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 805 | return 0; |
b1d9e6b0 CS |
806 | /* |
807 | * SELinux and Smack integrate the cap call, | |
808 | * so assume that all LSMs supplying this call do so. | |
809 | */ | |
810 | ret = call_int_hook(inode_removexattr, 1, dentry, name); | |
811 | if (ret == 1) | |
812 | ret = cap_inode_removexattr(dentry, name); | |
42c63330 MZ |
813 | if (ret) |
814 | return ret; | |
815 | ret = ima_inode_removexattr(dentry, name); | |
3e1be52d MZ |
816 | if (ret) |
817 | return ret; | |
818 | return evm_inode_removexattr(dentry, name); | |
20510f2f JM |
819 | } |
820 | ||
b5376771 SH |
821 | int security_inode_need_killpriv(struct dentry *dentry) |
822 | { | |
f25fce3e | 823 | return call_int_hook(inode_need_killpriv, 0, dentry); |
b5376771 SH |
824 | } |
825 | ||
826 | int security_inode_killpriv(struct dentry *dentry) | |
827 | { | |
f25fce3e | 828 | return call_int_hook(inode_killpriv, 0, dentry); |
b5376771 SH |
829 | } |
830 | ||
ea861dfd | 831 | int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc) |
20510f2f | 832 | { |
2885c1e3 CS |
833 | struct security_hook_list *hp; |
834 | int rc; | |
835 | ||
20510f2f | 836 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 837 | return -EOPNOTSUPP; |
2885c1e3 CS |
838 | /* |
839 | * Only one module will provide an attribute with a given name. | |
840 | */ | |
df0ce173 | 841 | hlist_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) { |
2885c1e3 CS |
842 | rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc); |
843 | if (rc != -EOPNOTSUPP) | |
844 | return rc; | |
845 | } | |
846 | return -EOPNOTSUPP; | |
20510f2f JM |
847 | } |
848 | ||
849 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
850 | { | |
2885c1e3 CS |
851 | struct security_hook_list *hp; |
852 | int rc; | |
853 | ||
20510f2f | 854 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 855 | return -EOPNOTSUPP; |
2885c1e3 CS |
856 | /* |
857 | * Only one module will provide an attribute with a given name. | |
858 | */ | |
df0ce173 | 859 | hlist_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) { |
2885c1e3 CS |
860 | rc = hp->hook.inode_setsecurity(inode, name, value, size, |
861 | flags); | |
862 | if (rc != -EOPNOTSUPP) | |
863 | return rc; | |
864 | } | |
865 | return -EOPNOTSUPP; | |
20510f2f JM |
866 | } |
867 | ||
868 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
869 | { | |
870 | if (unlikely(IS_PRIVATE(inode))) | |
871 | return 0; | |
f25fce3e | 872 | return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size); |
20510f2f | 873 | } |
c9bccef6 | 874 | EXPORT_SYMBOL(security_inode_listsecurity); |
20510f2f | 875 | |
d6335d77 | 876 | void security_inode_getsecid(struct inode *inode, u32 *secid) |
8a076191 | 877 | { |
f25fce3e | 878 | call_void_hook(inode_getsecid, inode, secid); |
8a076191 AD |
879 | } |
880 | ||
d8ad8b49 VG |
881 | int security_inode_copy_up(struct dentry *src, struct cred **new) |
882 | { | |
883 | return call_int_hook(inode_copy_up, 0, src, new); | |
884 | } | |
885 | EXPORT_SYMBOL(security_inode_copy_up); | |
886 | ||
121ab822 VG |
887 | int security_inode_copy_up_xattr(const char *name) |
888 | { | |
889 | return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name); | |
890 | } | |
891 | EXPORT_SYMBOL(security_inode_copy_up_xattr); | |
892 | ||
20510f2f JM |
893 | int security_file_permission(struct file *file, int mask) |
894 | { | |
c4ec54b4 EP |
895 | int ret; |
896 | ||
f25fce3e | 897 | ret = call_int_hook(file_permission, 0, file, mask); |
c4ec54b4 EP |
898 | if (ret) |
899 | return ret; | |
900 | ||
901 | return fsnotify_perm(file, mask); | |
20510f2f JM |
902 | } |
903 | ||
904 | int security_file_alloc(struct file *file) | |
905 | { | |
f25fce3e | 906 | return call_int_hook(file_alloc_security, 0, file); |
20510f2f JM |
907 | } |
908 | ||
909 | void security_file_free(struct file *file) | |
910 | { | |
f25fce3e | 911 | call_void_hook(file_free_security, file); |
20510f2f JM |
912 | } |
913 | ||
914 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
915 | { | |
f25fce3e | 916 | return call_int_hook(file_ioctl, 0, file, cmd, arg); |
20510f2f JM |
917 | } |
918 | ||
98de59bf | 919 | static inline unsigned long mmap_prot(struct file *file, unsigned long prot) |
20510f2f | 920 | { |
8b3ec681 | 921 | /* |
98de59bf AV |
922 | * Does we have PROT_READ and does the application expect |
923 | * it to imply PROT_EXEC? If not, nothing to talk about... | |
8b3ec681 | 924 | */ |
98de59bf AV |
925 | if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ) |
926 | return prot; | |
8b3ec681 | 927 | if (!(current->personality & READ_IMPLIES_EXEC)) |
98de59bf AV |
928 | return prot; |
929 | /* | |
930 | * if that's an anonymous mapping, let it. | |
931 | */ | |
932 | if (!file) | |
933 | return prot | PROT_EXEC; | |
934 | /* | |
935 | * ditto if it's not on noexec mount, except that on !MMU we need | |
b4caecd4 | 936 | * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case |
98de59bf | 937 | */ |
90f8572b | 938 | if (!path_noexec(&file->f_path)) { |
8b3ec681 | 939 | #ifndef CONFIG_MMU |
b4caecd4 CH |
940 | if (file->f_op->mmap_capabilities) { |
941 | unsigned caps = file->f_op->mmap_capabilities(file); | |
942 | if (!(caps & NOMMU_MAP_EXEC)) | |
943 | return prot; | |
944 | } | |
8b3ec681 | 945 | #endif |
98de59bf | 946 | return prot | PROT_EXEC; |
8b3ec681 | 947 | } |
98de59bf AV |
948 | /* anything on noexec mount won't get PROT_EXEC */ |
949 | return prot; | |
950 | } | |
951 | ||
952 | int security_mmap_file(struct file *file, unsigned long prot, | |
953 | unsigned long flags) | |
954 | { | |
955 | int ret; | |
f25fce3e | 956 | ret = call_int_hook(mmap_file, 0, file, prot, |
98de59bf | 957 | mmap_prot(file, prot), flags); |
6c21a7fb MZ |
958 | if (ret) |
959 | return ret; | |
960 | return ima_file_mmap(file, prot); | |
20510f2f JM |
961 | } |
962 | ||
e5467859 AV |
963 | int security_mmap_addr(unsigned long addr) |
964 | { | |
f25fce3e | 965 | return call_int_hook(mmap_addr, 0, addr); |
e5467859 AV |
966 | } |
967 | ||
20510f2f JM |
968 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, |
969 | unsigned long prot) | |
970 | { | |
f25fce3e | 971 | return call_int_hook(file_mprotect, 0, vma, reqprot, prot); |
20510f2f JM |
972 | } |
973 | ||
974 | int security_file_lock(struct file *file, unsigned int cmd) | |
975 | { | |
f25fce3e | 976 | return call_int_hook(file_lock, 0, file, cmd); |
20510f2f JM |
977 | } |
978 | ||
979 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) | |
980 | { | |
f25fce3e | 981 | return call_int_hook(file_fcntl, 0, file, cmd, arg); |
20510f2f JM |
982 | } |
983 | ||
e0b93edd | 984 | void security_file_set_fowner(struct file *file) |
20510f2f | 985 | { |
f25fce3e | 986 | call_void_hook(file_set_fowner, file); |
20510f2f JM |
987 | } |
988 | ||
989 | int security_file_send_sigiotask(struct task_struct *tsk, | |
990 | struct fown_struct *fown, int sig) | |
991 | { | |
f25fce3e | 992 | return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig); |
20510f2f JM |
993 | } |
994 | ||
995 | int security_file_receive(struct file *file) | |
996 | { | |
f25fce3e | 997 | return call_int_hook(file_receive, 0, file); |
20510f2f JM |
998 | } |
999 | ||
e3f20ae2 | 1000 | int security_file_open(struct file *file) |
20510f2f | 1001 | { |
c4ec54b4 EP |
1002 | int ret; |
1003 | ||
94817692 | 1004 | ret = call_int_hook(file_open, 0, file); |
c4ec54b4 EP |
1005 | if (ret) |
1006 | return ret; | |
1007 | ||
1008 | return fsnotify_perm(file, MAY_OPEN); | |
20510f2f JM |
1009 | } |
1010 | ||
e4e55b47 TH |
1011 | int security_task_alloc(struct task_struct *task, unsigned long clone_flags) |
1012 | { | |
1013 | return call_int_hook(task_alloc, 0, task, clone_flags); | |
1014 | } | |
1015 | ||
1a2a4d06 KC |
1016 | void security_task_free(struct task_struct *task) |
1017 | { | |
f25fce3e | 1018 | call_void_hook(task_free, task); |
1a2a4d06 KC |
1019 | } |
1020 | ||
ee18d64c DH |
1021 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
1022 | { | |
f25fce3e | 1023 | return call_int_hook(cred_alloc_blank, 0, cred, gfp); |
ee18d64c DH |
1024 | } |
1025 | ||
d84f4f99 | 1026 | void security_cred_free(struct cred *cred) |
20510f2f | 1027 | { |
f25fce3e | 1028 | call_void_hook(cred_free, cred); |
20510f2f JM |
1029 | } |
1030 | ||
d84f4f99 | 1031 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) |
20510f2f | 1032 | { |
f25fce3e | 1033 | return call_int_hook(cred_prepare, 0, new, old, gfp); |
d84f4f99 DH |
1034 | } |
1035 | ||
ee18d64c DH |
1036 | void security_transfer_creds(struct cred *new, const struct cred *old) |
1037 | { | |
f25fce3e | 1038 | call_void_hook(cred_transfer, new, old); |
ee18d64c DH |
1039 | } |
1040 | ||
3ec30113 MG |
1041 | void security_cred_getsecid(const struct cred *c, u32 *secid) |
1042 | { | |
1043 | *secid = 0; | |
1044 | call_void_hook(cred_getsecid, c, secid); | |
1045 | } | |
1046 | EXPORT_SYMBOL(security_cred_getsecid); | |
1047 | ||
3a3b7ce9 DH |
1048 | int security_kernel_act_as(struct cred *new, u32 secid) |
1049 | { | |
f25fce3e | 1050 | return call_int_hook(kernel_act_as, 0, new, secid); |
3a3b7ce9 DH |
1051 | } |
1052 | ||
1053 | int security_kernel_create_files_as(struct cred *new, struct inode *inode) | |
1054 | { | |
f25fce3e | 1055 | return call_int_hook(kernel_create_files_as, 0, new, inode); |
3a3b7ce9 DH |
1056 | } |
1057 | ||
dd8dbf2e | 1058 | int security_kernel_module_request(char *kmod_name) |
9188499c | 1059 | { |
6eb864c1 MK |
1060 | int ret; |
1061 | ||
1062 | ret = call_int_hook(kernel_module_request, 0, kmod_name); | |
1063 | if (ret) | |
1064 | return ret; | |
1065 | return integrity_kernel_module_request(kmod_name); | |
9188499c EP |
1066 | } |
1067 | ||
39eeb4fb MZ |
1068 | int security_kernel_read_file(struct file *file, enum kernel_read_file_id id) |
1069 | { | |
1070 | int ret; | |
1071 | ||
1072 | ret = call_int_hook(kernel_read_file, 0, file, id); | |
1073 | if (ret) | |
1074 | return ret; | |
1075 | return ima_read_file(file, id); | |
1076 | } | |
1077 | EXPORT_SYMBOL_GPL(security_kernel_read_file); | |
1078 | ||
bc8ca5b9 MZ |
1079 | int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, |
1080 | enum kernel_read_file_id id) | |
b44a7dfc | 1081 | { |
cf222217 MZ |
1082 | int ret; |
1083 | ||
1084 | ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id); | |
1085 | if (ret) | |
1086 | return ret; | |
1087 | return ima_post_read_file(file, buf, size, id); | |
b44a7dfc MZ |
1088 | } |
1089 | EXPORT_SYMBOL_GPL(security_kernel_post_read_file); | |
1090 | ||
377179cd MZ |
1091 | int security_kernel_load_data(enum kernel_load_data_id id) |
1092 | { | |
16c267aa MZ |
1093 | int ret; |
1094 | ||
1095 | ret = call_int_hook(kernel_load_data, 0, id); | |
1096 | if (ret) | |
1097 | return ret; | |
1098 | return ima_load_data(id); | |
377179cd | 1099 | } |
83a68a06 | 1100 | EXPORT_SYMBOL_GPL(security_kernel_load_data); |
377179cd | 1101 | |
d84f4f99 DH |
1102 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1103 | int flags) | |
20510f2f | 1104 | { |
f25fce3e | 1105 | return call_int_hook(task_fix_setuid, 0, new, old, flags); |
20510f2f JM |
1106 | } |
1107 | ||
20510f2f JM |
1108 | int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1109 | { | |
f25fce3e | 1110 | return call_int_hook(task_setpgid, 0, p, pgid); |
20510f2f JM |
1111 | } |
1112 | ||
1113 | int security_task_getpgid(struct task_struct *p) | |
1114 | { | |
f25fce3e | 1115 | return call_int_hook(task_getpgid, 0, p); |
20510f2f JM |
1116 | } |
1117 | ||
1118 | int security_task_getsid(struct task_struct *p) | |
1119 | { | |
f25fce3e | 1120 | return call_int_hook(task_getsid, 0, p); |
20510f2f JM |
1121 | } |
1122 | ||
1123 | void security_task_getsecid(struct task_struct *p, u32 *secid) | |
1124 | { | |
b1d9e6b0 | 1125 | *secid = 0; |
f25fce3e | 1126 | call_void_hook(task_getsecid, p, secid); |
20510f2f JM |
1127 | } |
1128 | EXPORT_SYMBOL(security_task_getsecid); | |
1129 | ||
20510f2f JM |
1130 | int security_task_setnice(struct task_struct *p, int nice) |
1131 | { | |
f25fce3e | 1132 | return call_int_hook(task_setnice, 0, p, nice); |
20510f2f JM |
1133 | } |
1134 | ||
1135 | int security_task_setioprio(struct task_struct *p, int ioprio) | |
1136 | { | |
f25fce3e | 1137 | return call_int_hook(task_setioprio, 0, p, ioprio); |
20510f2f JM |
1138 | } |
1139 | ||
1140 | int security_task_getioprio(struct task_struct *p) | |
1141 | { | |
f25fce3e | 1142 | return call_int_hook(task_getioprio, 0, p); |
20510f2f JM |
1143 | } |
1144 | ||
791ec491 SS |
1145 | int security_task_prlimit(const struct cred *cred, const struct cred *tcred, |
1146 | unsigned int flags) | |
1147 | { | |
1148 | return call_int_hook(task_prlimit, 0, cred, tcred, flags); | |
1149 | } | |
1150 | ||
8fd00b4d JS |
1151 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
1152 | struct rlimit *new_rlim) | |
20510f2f | 1153 | { |
f25fce3e | 1154 | return call_int_hook(task_setrlimit, 0, p, resource, new_rlim); |
20510f2f JM |
1155 | } |
1156 | ||
b0ae1981 | 1157 | int security_task_setscheduler(struct task_struct *p) |
20510f2f | 1158 | { |
f25fce3e | 1159 | return call_int_hook(task_setscheduler, 0, p); |
20510f2f JM |
1160 | } |
1161 | ||
1162 | int security_task_getscheduler(struct task_struct *p) | |
1163 | { | |
f25fce3e | 1164 | return call_int_hook(task_getscheduler, 0, p); |
20510f2f JM |
1165 | } |
1166 | ||
1167 | int security_task_movememory(struct task_struct *p) | |
1168 | { | |
f25fce3e | 1169 | return call_int_hook(task_movememory, 0, p); |
20510f2f JM |
1170 | } |
1171 | ||
ae7795bc | 1172 | int security_task_kill(struct task_struct *p, struct kernel_siginfo *info, |
6b4f3d01 | 1173 | int sig, const struct cred *cred) |
20510f2f | 1174 | { |
6b4f3d01 | 1175 | return call_int_hook(task_kill, 0, p, info, sig, cred); |
20510f2f JM |
1176 | } |
1177 | ||
20510f2f | 1178 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 1179 | unsigned long arg4, unsigned long arg5) |
20510f2f | 1180 | { |
b1d9e6b0 CS |
1181 | int thisrc; |
1182 | int rc = -ENOSYS; | |
1183 | struct security_hook_list *hp; | |
1184 | ||
df0ce173 | 1185 | hlist_for_each_entry(hp, &security_hook_heads.task_prctl, list) { |
b1d9e6b0 CS |
1186 | thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5); |
1187 | if (thisrc != -ENOSYS) { | |
1188 | rc = thisrc; | |
1189 | if (thisrc != 0) | |
1190 | break; | |
1191 | } | |
1192 | } | |
1193 | return rc; | |
20510f2f JM |
1194 | } |
1195 | ||
1196 | void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
1197 | { | |
f25fce3e | 1198 | call_void_hook(task_to_inode, p, inode); |
20510f2f JM |
1199 | } |
1200 | ||
1201 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) | |
1202 | { | |
f25fce3e | 1203 | return call_int_hook(ipc_permission, 0, ipcp, flag); |
20510f2f JM |
1204 | } |
1205 | ||
8a076191 AD |
1206 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
1207 | { | |
b1d9e6b0 | 1208 | *secid = 0; |
f25fce3e | 1209 | call_void_hook(ipc_getsecid, ipcp, secid); |
8a076191 AD |
1210 | } |
1211 | ||
20510f2f JM |
1212 | int security_msg_msg_alloc(struct msg_msg *msg) |
1213 | { | |
f25fce3e | 1214 | return call_int_hook(msg_msg_alloc_security, 0, msg); |
20510f2f JM |
1215 | } |
1216 | ||
1217 | void security_msg_msg_free(struct msg_msg *msg) | |
1218 | { | |
f25fce3e | 1219 | call_void_hook(msg_msg_free_security, msg); |
20510f2f JM |
1220 | } |
1221 | ||
d8c6e854 | 1222 | int security_msg_queue_alloc(struct kern_ipc_perm *msq) |
20510f2f | 1223 | { |
f25fce3e | 1224 | return call_int_hook(msg_queue_alloc_security, 0, msq); |
20510f2f JM |
1225 | } |
1226 | ||
d8c6e854 | 1227 | void security_msg_queue_free(struct kern_ipc_perm *msq) |
20510f2f | 1228 | { |
f25fce3e | 1229 | call_void_hook(msg_queue_free_security, msq); |
20510f2f JM |
1230 | } |
1231 | ||
d8c6e854 | 1232 | int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg) |
20510f2f | 1233 | { |
f25fce3e | 1234 | return call_int_hook(msg_queue_associate, 0, msq, msqflg); |
20510f2f JM |
1235 | } |
1236 | ||
d8c6e854 | 1237 | int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd) |
20510f2f | 1238 | { |
f25fce3e | 1239 | return call_int_hook(msg_queue_msgctl, 0, msq, cmd); |
20510f2f JM |
1240 | } |
1241 | ||
d8c6e854 | 1242 | int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, |
20510f2f JM |
1243 | struct msg_msg *msg, int msqflg) |
1244 | { | |
f25fce3e | 1245 | return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg); |
20510f2f JM |
1246 | } |
1247 | ||
d8c6e854 | 1248 | int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, |
20510f2f JM |
1249 | struct task_struct *target, long type, int mode) |
1250 | { | |
f25fce3e | 1251 | return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode); |
20510f2f JM |
1252 | } |
1253 | ||
7191adff | 1254 | int security_shm_alloc(struct kern_ipc_perm *shp) |
20510f2f | 1255 | { |
f25fce3e | 1256 | return call_int_hook(shm_alloc_security, 0, shp); |
20510f2f JM |
1257 | } |
1258 | ||
7191adff | 1259 | void security_shm_free(struct kern_ipc_perm *shp) |
20510f2f | 1260 | { |
f25fce3e | 1261 | call_void_hook(shm_free_security, shp); |
20510f2f JM |
1262 | } |
1263 | ||
7191adff | 1264 | int security_shm_associate(struct kern_ipc_perm *shp, int shmflg) |
20510f2f | 1265 | { |
f25fce3e | 1266 | return call_int_hook(shm_associate, 0, shp, shmflg); |
20510f2f JM |
1267 | } |
1268 | ||
7191adff | 1269 | int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd) |
20510f2f | 1270 | { |
f25fce3e | 1271 | return call_int_hook(shm_shmctl, 0, shp, cmd); |
20510f2f JM |
1272 | } |
1273 | ||
7191adff | 1274 | int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg) |
20510f2f | 1275 | { |
f25fce3e | 1276 | return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg); |
20510f2f JM |
1277 | } |
1278 | ||
aefad959 | 1279 | int security_sem_alloc(struct kern_ipc_perm *sma) |
20510f2f | 1280 | { |
f25fce3e | 1281 | return call_int_hook(sem_alloc_security, 0, sma); |
20510f2f JM |
1282 | } |
1283 | ||
aefad959 | 1284 | void security_sem_free(struct kern_ipc_perm *sma) |
20510f2f | 1285 | { |
f25fce3e | 1286 | call_void_hook(sem_free_security, sma); |
20510f2f JM |
1287 | } |
1288 | ||
aefad959 | 1289 | int security_sem_associate(struct kern_ipc_perm *sma, int semflg) |
20510f2f | 1290 | { |
f25fce3e | 1291 | return call_int_hook(sem_associate, 0, sma, semflg); |
20510f2f JM |
1292 | } |
1293 | ||
aefad959 | 1294 | int security_sem_semctl(struct kern_ipc_perm *sma, int cmd) |
20510f2f | 1295 | { |
f25fce3e | 1296 | return call_int_hook(sem_semctl, 0, sma, cmd); |
20510f2f JM |
1297 | } |
1298 | ||
aefad959 | 1299 | int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, |
20510f2f JM |
1300 | unsigned nsops, int alter) |
1301 | { | |
f25fce3e | 1302 | return call_int_hook(sem_semop, 0, sma, sops, nsops, alter); |
20510f2f JM |
1303 | } |
1304 | ||
1305 | void security_d_instantiate(struct dentry *dentry, struct inode *inode) | |
1306 | { | |
1307 | if (unlikely(inode && IS_PRIVATE(inode))) | |
1308 | return; | |
f25fce3e | 1309 | call_void_hook(d_instantiate, dentry, inode); |
20510f2f JM |
1310 | } |
1311 | EXPORT_SYMBOL(security_d_instantiate); | |
1312 | ||
1313 | int security_getprocattr(struct task_struct *p, char *name, char **value) | |
1314 | { | |
b1d9e6b0 | 1315 | return call_int_hook(getprocattr, -EINVAL, p, name, value); |
20510f2f JM |
1316 | } |
1317 | ||
b21507e2 | 1318 | int security_setprocattr(const char *name, void *value, size_t size) |
20510f2f | 1319 | { |
b21507e2 | 1320 | return call_int_hook(setprocattr, -EINVAL, name, value, size); |
20510f2f JM |
1321 | } |
1322 | ||
1323 | int security_netlink_send(struct sock *sk, struct sk_buff *skb) | |
1324 | { | |
f25fce3e | 1325 | return call_int_hook(netlink_send, 0, sk, skb); |
20510f2f | 1326 | } |
20510f2f | 1327 | |
746df9b5 DQ |
1328 | int security_ismaclabel(const char *name) |
1329 | { | |
f25fce3e | 1330 | return call_int_hook(ismaclabel, 0, name); |
746df9b5 DQ |
1331 | } |
1332 | EXPORT_SYMBOL(security_ismaclabel); | |
1333 | ||
20510f2f JM |
1334 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
1335 | { | |
b1d9e6b0 CS |
1336 | return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata, |
1337 | seclen); | |
20510f2f JM |
1338 | } |
1339 | EXPORT_SYMBOL(security_secid_to_secctx); | |
1340 | ||
7bf570dc | 1341 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) |
63cb3449 | 1342 | { |
b1d9e6b0 | 1343 | *secid = 0; |
f25fce3e | 1344 | return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid); |
63cb3449 DH |
1345 | } |
1346 | EXPORT_SYMBOL(security_secctx_to_secid); | |
1347 | ||
20510f2f JM |
1348 | void security_release_secctx(char *secdata, u32 seclen) |
1349 | { | |
f25fce3e | 1350 | call_void_hook(release_secctx, secdata, seclen); |
20510f2f JM |
1351 | } |
1352 | EXPORT_SYMBOL(security_release_secctx); | |
1353 | ||
6f3be9f5 AG |
1354 | void security_inode_invalidate_secctx(struct inode *inode) |
1355 | { | |
1356 | call_void_hook(inode_invalidate_secctx, inode); | |
1357 | } | |
1358 | EXPORT_SYMBOL(security_inode_invalidate_secctx); | |
1359 | ||
1ee65e37 DQ |
1360 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) |
1361 | { | |
f25fce3e | 1362 | return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen); |
1ee65e37 DQ |
1363 | } |
1364 | EXPORT_SYMBOL(security_inode_notifysecctx); | |
1365 | ||
1366 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
1367 | { | |
f25fce3e | 1368 | return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen); |
1ee65e37 DQ |
1369 | } |
1370 | EXPORT_SYMBOL(security_inode_setsecctx); | |
1371 | ||
1372 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
1373 | { | |
b1d9e6b0 | 1374 | return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen); |
1ee65e37 DQ |
1375 | } |
1376 | EXPORT_SYMBOL(security_inode_getsecctx); | |
1377 | ||
20510f2f JM |
1378 | #ifdef CONFIG_SECURITY_NETWORK |
1379 | ||
3610cda5 | 1380 | int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) |
20510f2f | 1381 | { |
f25fce3e | 1382 | return call_int_hook(unix_stream_connect, 0, sock, other, newsk); |
20510f2f JM |
1383 | } |
1384 | EXPORT_SYMBOL(security_unix_stream_connect); | |
1385 | ||
1386 | int security_unix_may_send(struct socket *sock, struct socket *other) | |
1387 | { | |
f25fce3e | 1388 | return call_int_hook(unix_may_send, 0, sock, other); |
20510f2f JM |
1389 | } |
1390 | EXPORT_SYMBOL(security_unix_may_send); | |
1391 | ||
1392 | int security_socket_create(int family, int type, int protocol, int kern) | |
1393 | { | |
f25fce3e | 1394 | return call_int_hook(socket_create, 0, family, type, protocol, kern); |
20510f2f JM |
1395 | } |
1396 | ||
1397 | int security_socket_post_create(struct socket *sock, int family, | |
1398 | int type, int protocol, int kern) | |
1399 | { | |
f25fce3e | 1400 | return call_int_hook(socket_post_create, 0, sock, family, type, |
20510f2f JM |
1401 | protocol, kern); |
1402 | } | |
1403 | ||
aae7cfcb DH |
1404 | int security_socket_socketpair(struct socket *socka, struct socket *sockb) |
1405 | { | |
1406 | return call_int_hook(socket_socketpair, 0, socka, sockb); | |
1407 | } | |
1408 | EXPORT_SYMBOL(security_socket_socketpair); | |
1409 | ||
20510f2f JM |
1410 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) |
1411 | { | |
f25fce3e | 1412 | return call_int_hook(socket_bind, 0, sock, address, addrlen); |
20510f2f JM |
1413 | } |
1414 | ||
1415 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) | |
1416 | { | |
f25fce3e | 1417 | return call_int_hook(socket_connect, 0, sock, address, addrlen); |
20510f2f JM |
1418 | } |
1419 | ||
1420 | int security_socket_listen(struct socket *sock, int backlog) | |
1421 | { | |
f25fce3e | 1422 | return call_int_hook(socket_listen, 0, sock, backlog); |
20510f2f JM |
1423 | } |
1424 | ||
1425 | int security_socket_accept(struct socket *sock, struct socket *newsock) | |
1426 | { | |
f25fce3e | 1427 | return call_int_hook(socket_accept, 0, sock, newsock); |
20510f2f JM |
1428 | } |
1429 | ||
20510f2f JM |
1430 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) |
1431 | { | |
f25fce3e | 1432 | return call_int_hook(socket_sendmsg, 0, sock, msg, size); |
20510f2f JM |
1433 | } |
1434 | ||
1435 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
1436 | int size, int flags) | |
1437 | { | |
f25fce3e | 1438 | return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags); |
20510f2f JM |
1439 | } |
1440 | ||
1441 | int security_socket_getsockname(struct socket *sock) | |
1442 | { | |
f25fce3e | 1443 | return call_int_hook(socket_getsockname, 0, sock); |
20510f2f JM |
1444 | } |
1445 | ||
1446 | int security_socket_getpeername(struct socket *sock) | |
1447 | { | |
f25fce3e | 1448 | return call_int_hook(socket_getpeername, 0, sock); |
20510f2f JM |
1449 | } |
1450 | ||
1451 | int security_socket_getsockopt(struct socket *sock, int level, int optname) | |
1452 | { | |
f25fce3e | 1453 | return call_int_hook(socket_getsockopt, 0, sock, level, optname); |
20510f2f JM |
1454 | } |
1455 | ||
1456 | int security_socket_setsockopt(struct socket *sock, int level, int optname) | |
1457 | { | |
f25fce3e | 1458 | return call_int_hook(socket_setsockopt, 0, sock, level, optname); |
20510f2f JM |
1459 | } |
1460 | ||
1461 | int security_socket_shutdown(struct socket *sock, int how) | |
1462 | { | |
f25fce3e | 1463 | return call_int_hook(socket_shutdown, 0, sock, how); |
20510f2f JM |
1464 | } |
1465 | ||
1466 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) | |
1467 | { | |
f25fce3e | 1468 | return call_int_hook(socket_sock_rcv_skb, 0, sk, skb); |
20510f2f JM |
1469 | } |
1470 | EXPORT_SYMBOL(security_sock_rcv_skb); | |
1471 | ||
1472 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
1473 | int __user *optlen, unsigned len) | |
1474 | { | |
b1d9e6b0 CS |
1475 | return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock, |
1476 | optval, optlen, len); | |
20510f2f JM |
1477 | } |
1478 | ||
1479 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) | |
1480 | { | |
e308fd3b JB |
1481 | return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock, |
1482 | skb, secid); | |
20510f2f JM |
1483 | } |
1484 | EXPORT_SYMBOL(security_socket_getpeersec_dgram); | |
1485 | ||
1486 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority) | |
1487 | { | |
f25fce3e | 1488 | return call_int_hook(sk_alloc_security, 0, sk, family, priority); |
20510f2f JM |
1489 | } |
1490 | ||
1491 | void security_sk_free(struct sock *sk) | |
1492 | { | |
f25fce3e | 1493 | call_void_hook(sk_free_security, sk); |
20510f2f JM |
1494 | } |
1495 | ||
1496 | void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1497 | { | |
f25fce3e | 1498 | call_void_hook(sk_clone_security, sk, newsk); |
20510f2f | 1499 | } |
6230c9b4 | 1500 | EXPORT_SYMBOL(security_sk_clone); |
20510f2f JM |
1501 | |
1502 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl) | |
1503 | { | |
f25fce3e | 1504 | call_void_hook(sk_getsecid, sk, &fl->flowi_secid); |
20510f2f JM |
1505 | } |
1506 | EXPORT_SYMBOL(security_sk_classify_flow); | |
1507 | ||
1508 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
1509 | { | |
f25fce3e | 1510 | call_void_hook(req_classify_flow, req, fl); |
20510f2f JM |
1511 | } |
1512 | EXPORT_SYMBOL(security_req_classify_flow); | |
1513 | ||
1514 | void security_sock_graft(struct sock *sk, struct socket *parent) | |
1515 | { | |
f25fce3e | 1516 | call_void_hook(sock_graft, sk, parent); |
20510f2f JM |
1517 | } |
1518 | EXPORT_SYMBOL(security_sock_graft); | |
1519 | ||
1520 | int security_inet_conn_request(struct sock *sk, | |
1521 | struct sk_buff *skb, struct request_sock *req) | |
1522 | { | |
f25fce3e | 1523 | return call_int_hook(inet_conn_request, 0, sk, skb, req); |
20510f2f JM |
1524 | } |
1525 | EXPORT_SYMBOL(security_inet_conn_request); | |
1526 | ||
1527 | void security_inet_csk_clone(struct sock *newsk, | |
1528 | const struct request_sock *req) | |
1529 | { | |
f25fce3e | 1530 | call_void_hook(inet_csk_clone, newsk, req); |
20510f2f JM |
1531 | } |
1532 | ||
1533 | void security_inet_conn_established(struct sock *sk, | |
1534 | struct sk_buff *skb) | |
1535 | { | |
f25fce3e | 1536 | call_void_hook(inet_conn_established, sk, skb); |
20510f2f | 1537 | } |
72e89f50 | 1538 | EXPORT_SYMBOL(security_inet_conn_established); |
20510f2f | 1539 | |
2606fd1f EP |
1540 | int security_secmark_relabel_packet(u32 secid) |
1541 | { | |
f25fce3e | 1542 | return call_int_hook(secmark_relabel_packet, 0, secid); |
2606fd1f EP |
1543 | } |
1544 | EXPORT_SYMBOL(security_secmark_relabel_packet); | |
1545 | ||
1546 | void security_secmark_refcount_inc(void) | |
1547 | { | |
f25fce3e | 1548 | call_void_hook(secmark_refcount_inc); |
2606fd1f EP |
1549 | } |
1550 | EXPORT_SYMBOL(security_secmark_refcount_inc); | |
1551 | ||
1552 | void security_secmark_refcount_dec(void) | |
1553 | { | |
f25fce3e | 1554 | call_void_hook(secmark_refcount_dec); |
2606fd1f EP |
1555 | } |
1556 | EXPORT_SYMBOL(security_secmark_refcount_dec); | |
1557 | ||
5dbbaf2d PM |
1558 | int security_tun_dev_alloc_security(void **security) |
1559 | { | |
f25fce3e | 1560 | return call_int_hook(tun_dev_alloc_security, 0, security); |
5dbbaf2d PM |
1561 | } |
1562 | EXPORT_SYMBOL(security_tun_dev_alloc_security); | |
1563 | ||
1564 | void security_tun_dev_free_security(void *security) | |
1565 | { | |
f25fce3e | 1566 | call_void_hook(tun_dev_free_security, security); |
5dbbaf2d PM |
1567 | } |
1568 | EXPORT_SYMBOL(security_tun_dev_free_security); | |
1569 | ||
2b980dbd PM |
1570 | int security_tun_dev_create(void) |
1571 | { | |
f25fce3e | 1572 | return call_int_hook(tun_dev_create, 0); |
2b980dbd PM |
1573 | } |
1574 | EXPORT_SYMBOL(security_tun_dev_create); | |
1575 | ||
5dbbaf2d | 1576 | int security_tun_dev_attach_queue(void *security) |
2b980dbd | 1577 | { |
f25fce3e | 1578 | return call_int_hook(tun_dev_attach_queue, 0, security); |
2b980dbd | 1579 | } |
5dbbaf2d | 1580 | EXPORT_SYMBOL(security_tun_dev_attach_queue); |
2b980dbd | 1581 | |
5dbbaf2d | 1582 | int security_tun_dev_attach(struct sock *sk, void *security) |
2b980dbd | 1583 | { |
f25fce3e | 1584 | return call_int_hook(tun_dev_attach, 0, sk, security); |
2b980dbd PM |
1585 | } |
1586 | EXPORT_SYMBOL(security_tun_dev_attach); | |
1587 | ||
5dbbaf2d PM |
1588 | int security_tun_dev_open(void *security) |
1589 | { | |
f25fce3e | 1590 | return call_int_hook(tun_dev_open, 0, security); |
5dbbaf2d PM |
1591 | } |
1592 | EXPORT_SYMBOL(security_tun_dev_open); | |
1593 | ||
72e89f50 RH |
1594 | int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb) |
1595 | { | |
1596 | return call_int_hook(sctp_assoc_request, 0, ep, skb); | |
1597 | } | |
1598 | EXPORT_SYMBOL(security_sctp_assoc_request); | |
1599 | ||
1600 | int security_sctp_bind_connect(struct sock *sk, int optname, | |
1601 | struct sockaddr *address, int addrlen) | |
1602 | { | |
1603 | return call_int_hook(sctp_bind_connect, 0, sk, optname, | |
1604 | address, addrlen); | |
1605 | } | |
1606 | EXPORT_SYMBOL(security_sctp_bind_connect); | |
1607 | ||
1608 | void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk, | |
1609 | struct sock *newsk) | |
1610 | { | |
1611 | call_void_hook(sctp_sk_clone, ep, sk, newsk); | |
1612 | } | |
1613 | EXPORT_SYMBOL(security_sctp_sk_clone); | |
1614 | ||
20510f2f JM |
1615 | #endif /* CONFIG_SECURITY_NETWORK */ |
1616 | ||
d291f1a6 DJ |
1617 | #ifdef CONFIG_SECURITY_INFINIBAND |
1618 | ||
1619 | int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) | |
1620 | { | |
1621 | return call_int_hook(ib_pkey_access, 0, sec, subnet_prefix, pkey); | |
1622 | } | |
1623 | EXPORT_SYMBOL(security_ib_pkey_access); | |
1624 | ||
47a2b338 DJ |
1625 | int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) |
1626 | { | |
1627 | return call_int_hook(ib_endport_manage_subnet, 0, sec, dev_name, port_num); | |
1628 | } | |
1629 | EXPORT_SYMBOL(security_ib_endport_manage_subnet); | |
1630 | ||
d291f1a6 DJ |
1631 | int security_ib_alloc_security(void **sec) |
1632 | { | |
1633 | return call_int_hook(ib_alloc_security, 0, sec); | |
1634 | } | |
1635 | EXPORT_SYMBOL(security_ib_alloc_security); | |
1636 | ||
1637 | void security_ib_free_security(void *sec) | |
1638 | { | |
1639 | call_void_hook(ib_free_security, sec); | |
1640 | } | |
1641 | EXPORT_SYMBOL(security_ib_free_security); | |
1642 | #endif /* CONFIG_SECURITY_INFINIBAND */ | |
1643 | ||
20510f2f JM |
1644 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
1645 | ||
52a4c640 NA |
1646 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, |
1647 | struct xfrm_user_sec_ctx *sec_ctx, | |
1648 | gfp_t gfp) | |
20510f2f | 1649 | { |
f25fce3e | 1650 | return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp); |
20510f2f JM |
1651 | } |
1652 | EXPORT_SYMBOL(security_xfrm_policy_alloc); | |
1653 | ||
03e1ad7b PM |
1654 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, |
1655 | struct xfrm_sec_ctx **new_ctxp) | |
20510f2f | 1656 | { |
f25fce3e | 1657 | return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp); |
20510f2f JM |
1658 | } |
1659 | ||
03e1ad7b | 1660 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
20510f2f | 1661 | { |
f25fce3e | 1662 | call_void_hook(xfrm_policy_free_security, ctx); |
20510f2f JM |
1663 | } |
1664 | EXPORT_SYMBOL(security_xfrm_policy_free); | |
1665 | ||
03e1ad7b | 1666 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
20510f2f | 1667 | { |
f25fce3e | 1668 | return call_int_hook(xfrm_policy_delete_security, 0, ctx); |
20510f2f JM |
1669 | } |
1670 | ||
2e5aa866 PM |
1671 | int security_xfrm_state_alloc(struct xfrm_state *x, |
1672 | struct xfrm_user_sec_ctx *sec_ctx) | |
20510f2f | 1673 | { |
f25fce3e | 1674 | return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx); |
20510f2f JM |
1675 | } |
1676 | EXPORT_SYMBOL(security_xfrm_state_alloc); | |
1677 | ||
1678 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
1679 | struct xfrm_sec_ctx *polsec, u32 secid) | |
1680 | { | |
f25fce3e | 1681 | return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid); |
20510f2f JM |
1682 | } |
1683 | ||
1684 | int security_xfrm_state_delete(struct xfrm_state *x) | |
1685 | { | |
f25fce3e | 1686 | return call_int_hook(xfrm_state_delete_security, 0, x); |
20510f2f JM |
1687 | } |
1688 | EXPORT_SYMBOL(security_xfrm_state_delete); | |
1689 | ||
1690 | void security_xfrm_state_free(struct xfrm_state *x) | |
1691 | { | |
f25fce3e | 1692 | call_void_hook(xfrm_state_free_security, x); |
20510f2f JM |
1693 | } |
1694 | ||
03e1ad7b | 1695 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
20510f2f | 1696 | { |
f25fce3e | 1697 | return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir); |
20510f2f JM |
1698 | } |
1699 | ||
1700 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
e33f7704 DM |
1701 | struct xfrm_policy *xp, |
1702 | const struct flowi *fl) | |
20510f2f | 1703 | { |
b1d9e6b0 CS |
1704 | struct security_hook_list *hp; |
1705 | int rc = 1; | |
1706 | ||
1707 | /* | |
1708 | * Since this function is expected to return 0 or 1, the judgment | |
1709 | * becomes difficult if multiple LSMs supply this call. Fortunately, | |
1710 | * we can use the first LSM's judgment because currently only SELinux | |
1711 | * supplies this call. | |
1712 | * | |
1713 | * For speed optimization, we explicitly break the loop rather than | |
1714 | * using the macro | |
1715 | */ | |
df0ce173 | 1716 | hlist_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match, |
b1d9e6b0 CS |
1717 | list) { |
1718 | rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl); | |
1719 | break; | |
1720 | } | |
1721 | return rc; | |
20510f2f JM |
1722 | } |
1723 | ||
1724 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) | |
1725 | { | |
f25fce3e | 1726 | return call_int_hook(xfrm_decode_session, 0, skb, secid, 1); |
20510f2f JM |
1727 | } |
1728 | ||
1729 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) | |
1730 | { | |
f25fce3e CS |
1731 | int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid, |
1732 | 0); | |
20510f2f JM |
1733 | |
1734 | BUG_ON(rc); | |
1735 | } | |
1736 | EXPORT_SYMBOL(security_skb_classify_flow); | |
1737 | ||
1738 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ | |
1739 | ||
1740 | #ifdef CONFIG_KEYS | |
1741 | ||
d84f4f99 DH |
1742 | int security_key_alloc(struct key *key, const struct cred *cred, |
1743 | unsigned long flags) | |
20510f2f | 1744 | { |
f25fce3e | 1745 | return call_int_hook(key_alloc, 0, key, cred, flags); |
20510f2f JM |
1746 | } |
1747 | ||
1748 | void security_key_free(struct key *key) | |
1749 | { | |
f25fce3e | 1750 | call_void_hook(key_free, key); |
20510f2f JM |
1751 | } |
1752 | ||
1753 | int security_key_permission(key_ref_t key_ref, | |
f5895943 | 1754 | const struct cred *cred, unsigned perm) |
20510f2f | 1755 | { |
f25fce3e | 1756 | return call_int_hook(key_permission, 0, key_ref, cred, perm); |
20510f2f JM |
1757 | } |
1758 | ||
70a5bb72 DH |
1759 | int security_key_getsecurity(struct key *key, char **_buffer) |
1760 | { | |
b1d9e6b0 | 1761 | *_buffer = NULL; |
f25fce3e | 1762 | return call_int_hook(key_getsecurity, 0, key, _buffer); |
70a5bb72 DH |
1763 | } |
1764 | ||
20510f2f | 1765 | #endif /* CONFIG_KEYS */ |
03d37d25 AD |
1766 | |
1767 | #ifdef CONFIG_AUDIT | |
1768 | ||
1769 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) | |
1770 | { | |
f25fce3e | 1771 | return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule); |
03d37d25 AD |
1772 | } |
1773 | ||
1774 | int security_audit_rule_known(struct audit_krule *krule) | |
1775 | { | |
f25fce3e | 1776 | return call_int_hook(audit_rule_known, 0, krule); |
03d37d25 AD |
1777 | } |
1778 | ||
1779 | void security_audit_rule_free(void *lsmrule) | |
1780 | { | |
f25fce3e | 1781 | call_void_hook(audit_rule_free, lsmrule); |
03d37d25 AD |
1782 | } |
1783 | ||
1784 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
1785 | struct audit_context *actx) | |
1786 | { | |
f25fce3e CS |
1787 | return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule, |
1788 | actx); | |
03d37d25 | 1789 | } |
b1d9e6b0 | 1790 | #endif /* CONFIG_AUDIT */ |
afdb09c7 CF |
1791 | |
1792 | #ifdef CONFIG_BPF_SYSCALL | |
1793 | int security_bpf(int cmd, union bpf_attr *attr, unsigned int size) | |
1794 | { | |
1795 | return call_int_hook(bpf, 0, cmd, attr, size); | |
1796 | } | |
1797 | int security_bpf_map(struct bpf_map *map, fmode_t fmode) | |
1798 | { | |
1799 | return call_int_hook(bpf_map, 0, map, fmode); | |
1800 | } | |
1801 | int security_bpf_prog(struct bpf_prog *prog) | |
1802 | { | |
1803 | return call_int_hook(bpf_prog, 0, prog); | |
1804 | } | |
1805 | int security_bpf_map_alloc(struct bpf_map *map) | |
1806 | { | |
1807 | return call_int_hook(bpf_map_alloc_security, 0, map); | |
1808 | } | |
1809 | int security_bpf_prog_alloc(struct bpf_prog_aux *aux) | |
1810 | { | |
1811 | return call_int_hook(bpf_prog_alloc_security, 0, aux); | |
1812 | } | |
1813 | void security_bpf_map_free(struct bpf_map *map) | |
1814 | { | |
1815 | call_void_hook(bpf_map_free_security, map); | |
1816 | } | |
1817 | void security_bpf_prog_free(struct bpf_prog_aux *aux) | |
1818 | { | |
1819 | call_void_hook(bpf_prog_free_security, aux); | |
1820 | } | |
1821 | #endif /* CONFIG_BPF_SYSCALL */ |